WO2020200157A1 - 传输方法、装置、终端、基站、通信系统及存储介质 - Google Patents

传输方法、装置、终端、基站、通信系统及存储介质 Download PDF

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Publication number
WO2020200157A1
WO2020200157A1 PCT/CN2020/082030 CN2020082030W WO2020200157A1 WO 2020200157 A1 WO2020200157 A1 WO 2020200157A1 CN 2020082030 W CN2020082030 W CN 2020082030W WO 2020200157 A1 WO2020200157 A1 WO 2020200157A1
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WIPO (PCT)
Prior art keywords
index
preamble
transmission resource
association relationship
payload
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Ceased
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PCT/CN2020/082030
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English (en)
French (fr)
Inventor
李卫敏
张峻峰
田力
胡宇洲
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ZTE Corp
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ZTE Corp
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Application filed by ZTE Corp filed Critical ZTE Corp
Priority to EP20782247.9A priority Critical patent/EP3952582A4/en
Priority to US17/599,426 priority patent/US12238043B2/en
Publication of WO2020200157A1 publication Critical patent/WO2020200157A1/zh
Anticipated expiration legal-status Critical
Priority to US19/039,330 priority patent/US20250175312A1/en
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0836—Random access procedures, e.g. with 4-step access with 2-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0838—Random access procedures, e.g. with 4-step access using contention-free random access [CFRA]

Definitions

  • This application relates to the field of communications, such as transmission methods, devices, terminals, base stations, communication systems, and storage media.
  • the Long Term Evolution (LTE) communication system or the New Radio Access Technology (New RAT or NR) communication system
  • LTE Long Term Evolution
  • New RAT New Radio Access Technology
  • UE User Equipment
  • RRC Radio Resource Control
  • the UE establishes a connection with the cell through a random access process, obtains uplink synchronization, and obtains a unique network identifier.
  • the base station in the LTE system is usually called an evolved Node B (eNB), and the base station in the NR system is usually called the next generation Node B (gNB) for NR users.
  • eNB evolved Node B
  • gNB next generation Node B
  • the random access process includes contention-based random access and non-contention-based random access.
  • Random access based on contention may include four-step random access (4-step RACH) and two-step random access (2-step RACH).
  • 4-step RACH four-step random access
  • 2-step RACH two-step random access
  • the preamble of the first step of the four-step random access (Preamble) and the payload (Payload) of the third step can be sent in one message (msgA).
  • the UE In the two-step random access, when the msgA transmission sent by a UE fails or is not successfully received by the base station, the UE performs a fallback and performs random access according to a four-step random access process. The UE falls back from the two-step random access to the four-step random access, which will cause a waste of transmission resources. When the number of UEs performing fallback is large, a large amount of transmission resources will be wasted, which will affect system access efficiency and transmission performance.
  • the embodiment of the application provides a transmission method, including:
  • the first index satisfies a first preset rule, and then it is determined that the content to be transmitted includes the first message.
  • the embodiment of the application provides a transmission method, including:
  • the detected sequence satisfies a first preset rule, and then it is determined that the detected transmission content to be received includes a payload.
  • the embodiment of the present application provides a transmission device, including:
  • the first obtaining module is used to obtain the first index
  • the second acquiring module is used to acquire the first information
  • the first determining module is configured to determine that the first index satisfies a first preset rule according to the first information, and then determine that the content to be transmitted includes the first message.
  • the embodiment of the present application provides a transmission device, including:
  • the detection module is used to perform sequence detection and obtain the detected sequence
  • the third acquisition module is used to acquire the first information
  • the third determining module is configured to determine, according to the first information, that the detected sequence meets the first preset rule, and then determine that the detected transmission content to be received includes a payload.
  • An embodiment of the present application provides a terminal, and the terminal includes a processor and a memory;
  • the memory is used to store instructions
  • the processor is configured to read the instruction to execute the method applied to the terminal in the embodiment of the present application.
  • An embodiment of the present application provides a base station, the base station including: a processor and a memory;
  • the memory is used to store instructions
  • the processor is configured to read the instruction to execute the method applied to the base station in the embodiment of the present application.
  • the embodiment of the present application provides a communication system, and the system includes the terminal provided in the embodiment of the present application and the base station provided in the embodiment of the present application.
  • An embodiment of the present application provides a storage medium that stores a computer program, and when the computer program is executed by a processor, implements any of the methods provided in the embodiments of the present application.
  • the first index satisfies the first preset rule according to the first information, and then it is determined that the content to be transmitted includes the first message, which can control the transmission of the first message, thereby reducing the collision of transmission resources and reducing the waste of transmission resources.
  • the content to be transmitted includes the first message, which can control the transmission of the first message, thereby reducing the collision of transmission resources and reducing the waste of transmission resources.
  • Figure 1 is a schematic diagram of a four-step random access flow.
  • Figure 2 is a schematic diagram of a two-step random access flow.
  • FIG. 3 is a schematic flowchart of a transmission method according to an embodiment of the application.
  • FIG. 4 is a schematic flowchart of a transmission method according to another embodiment of the application.
  • FIG. 5 is a schematic flowchart of a transmission method according to another embodiment of the application.
  • FIG. 6 is a schematic flowchart of a random access method according to an embodiment of the application.
  • FIG. 7 is a schematic flowchart of a random access method according to another embodiment of this application.
  • FIG. 8 is a schematic flowchart of a random access method according to another embodiment of this application.
  • FIG. 9 is a schematic flowchart of a random access method according to another embodiment of this application.
  • FIG. 10 is a schematic flowchart of a random access method according to another embodiment of this application.
  • FIG. 11 is a schematic flowchart of a random access method according to another embodiment of this application.
  • FIG. 12 is a schematic diagram of an application example of a random access method according to another embodiment of the application.
  • FIG. 13 is a schematic diagram of an application example of a random access method according to another embodiment of this application.
  • FIG. 14 is a schematic diagram of an application example of a random access method according to another embodiment of this application.
  • FIG. 15 is a schematic diagram of an application example of a random access method according to another embodiment of this application.
  • FIG. 16 is a schematic diagram of an application example of a random access method according to another embodiment of this application.
  • FIG. 17 is a schematic diagram of an application example of a random access method according to another embodiment of this application.
  • FIG. 18 is a schematic diagram of an application example of a random access method according to another embodiment of this application.
  • FIG. 19 is a schematic structural diagram of a transmission device according to an embodiment of the application.
  • FIG. 20 is a schematic structural diagram of a transmission device according to another embodiment of the application.
  • FIG. 21 is a schematic structural diagram of a transmission device according to another embodiment of the application.
  • FIG. 22 is a schematic structural diagram of a terminal according to an embodiment of the application.
  • FIG. 23 is a schematic structural diagram of a base station according to an embodiment of the application.
  • FIG. 24 is a schematic structural diagram of a communication system according to an embodiment of the application.
  • the contention-based random access process can include four steps:
  • Step S11 the UE sends a preamble. Specifically, the UE obtains the preamble sequence, and sends it to the base station through a Physical Random Access Channel (PRACH). In this way, the base station can be informed that there is a random access request, and the base station can estimate the transmission delay between it and the UE in order to calibrate the uplink timing.
  • the preamble in this step can also be referred to as message 1 (msg1).
  • Step S12 the base station sends a random access response (Random Access Response, RAR), and the RAR carries timing adjustment information, uplink scheduling or authorization information, and temporary network identifiers.
  • RAR Random Access Response
  • the UE sends the preamble it will receive the RAR within a RAR time window. If the RAR from the base station is not received within this time window, it is considered that this random access procedure has failed.
  • the RAR in this step can also be referred to as message 2 (msg2).
  • step S13 the UE sends message 3 (msg3). Specifically, the UE sends msg3 on a Physical Uplink Sharing Channel (PUSCH) according to the information received from the RAR.
  • PUSCH Physical Uplink Sharing Channel
  • the msg3 contains important information, namely the unique identification information of the UE, which is used for conflict resolution in step S14.
  • Step S14 the base station sends a contention resolution message, which may also be called message 4 (msg4).
  • msg4 message 4
  • the base station will carry the unique identification information of the UE in msg4 to specify the UE that wins the conflict resolution. Other UEs that did not win the conflict resolution will re-initiate random access.
  • the preamble sent by the UE is dedicated to it, and there is no conflict.
  • the UE already has a unique network identifier in the access cell and no longer needs to be allocated by the base station. Therefore, the non-contention-based random access procedure does not need to perform step S13 and step S14.
  • the aforementioned four-step random access process may also be referred to as 4-step random access (4-step RACH) for short.
  • 4-step RACH 4-step random access
  • the four-step random access can be simplified to two-step random access (2-step RACH).
  • the two-step random access process includes two steps:
  • Step S21 the UE sends a message A (msgA).
  • the message includes two parts, Preamble and Payload.
  • the payload can be sent through a Physical Uplink Shared Channel (PUSCH) to carry the uplink information sent by the UE.
  • PUSCH Physical Uplink Shared Channel
  • the payload can include content and service data similar to msg3 in step S13 of the four-step random access.
  • step S22 the base station sends a message B (msgB), which is used to implement functions similar to steps S12 and S14 in the four-step random access, such as timing adjustment and conflict resolution.
  • msgB message B
  • the UE In two-step random access, when the msgA transmission sent by a UE fails or is not successfully received by the base station, it may be that the transmission of both the Preamble and the payload fails, or it may be that the transmission of the preamble is successful but the transmission of the payload fails.
  • the payload transmission failure may be caused by the same resources (such as PUSCH resources, DMRS, etc.) used by the UE and the resources used by other UEs, that is, resource collisions.
  • the UE can perform a fallback and perform random access according to a four-step random access procedure.
  • the UE can directly perform random access again according to the above four steps.
  • the base station detects the Preamble but does not receive the Payload, then the base station can think that the UE only sent the Preamble, which is the step S11 of four-step random access, and then the base station sends RAR to the UE. In this way, a fallback is achieved, and the subsequent steps are the same as the above four-step random access.
  • the fallback of the UE from the two-step random access to the four-step random access will cause the UE's Payload transmission through the PUSCH to be wasted or unnecessary, that is, it will cause a waste of transmission resources. In addition, interference will be introduced. When the number of UEs performing fallback is large, a large amount of transmission resources will be wasted, which will affect system access efficiency and transmission performance.
  • FIG. 3 is a schematic flowchart of a transmission method according to an embodiment of the application. As shown in FIG. 3, the method may include:
  • Step S31 Obtain a first index.
  • Step S32 Acquire first information.
  • Step S33 It is determined according to the first information that the first index satisfies a first preset rule, and then it is determined that the content to be transmitted includes the first message.
  • the first index may be an index of a sequence, such as an index of a preamble sequence, an index of a pilot sequence, etc.; the first index may also be a logical index without specific physical meaning, or, It can also be an index based on specified information.
  • the first index may be obtained by randomly generating or selecting, or obtained according to system configuration, or obtained by processing according to designated information.
  • the first message includes: a sequence and a payload indicated by the first index, or the payload.
  • the first index may be the index of the preamble sequence
  • the first message may be the message A (msgA) in the aforementioned two-step random access, that is, the preamble sequence indicated by the first index and the valid Load.
  • the first index may also be a logical index, or an index obtained according to specified information, and the first message may include a payload.
  • the method further includes:
  • Step S34 It is determined according to the first information that the first index does not satisfy a first preset rule, and then it is determined that the content to be transmitted is the sequence indicated by the first index.
  • the method further includes:
  • Step S35 Transmit the content to be transmitted.
  • step S32 and step S34 when determining whether the first index meets the first preset rule according to the first information, in addition to determining whether the first index meets the first index A preset rule can also be used to determine whether the first preset rule is satisfied based on the information associated with the first index.
  • the first information obtained in step S32 may include multiple types, and different first preset rules may be set for different types of first information.
  • step S33 it is determined according to the first information that the first index satisfies the first preset rule, including different situations, which will be described separately below.
  • the first information includes an association relationship between an index and a demodulation reference signal (Demodulation Reference Signal, DMRS).
  • DMRS Demodulation Reference Signal
  • the index may be an index of a sequence, such as an index of a preamble sequence, an index of a pilot sequence, etc.; the index may also be a logical index with no specific physical meaning; or, the index may also be based on designated information Obtained indexes, etc.
  • the DMRS includes DMRS time-frequency resource or time-frequency location, DMRS index, DMRS port, etc.
  • the association relationship between the index and the DMRS may include: the association relationship between all indexes and the DMRS; or, the association relationship between a part of the indexes and the DMRS.
  • the index in random access, the index may be the index of the preamble sequence.
  • the association relationship between the index and the DMRS may specifically include: the association relationship between all preambles and DMRS; or, the association relationship between some preambles and DMRS.
  • step S33 determining that the first index satisfies a first preset rule according to the first information includes: determining that the first index belongs to a DMRS according to the association relationship between the index and the DMRS One of the specified indexes in the associated indexes; or it is determined that the first index belongs to the first index set according to the association relationship between the index and the DMRS, wherein the first index set is based on the association relationship between the index and the DMRS Obtained; or determining that the first index has an association relationship with at least one DMRS according to the association relationship between the index and the DMRS; or determining that the DMRS associated with the first index is available according to the association relationship between the index and the DMRS .
  • the first index set is obtained according to the association relationship between the index and the DMRS, including: obtaining M associated with each DMRS in the specified DMRS according to the association relationship between the index and the DMRS N indexes in the index, the N indexes are used as indexes in the first index set to obtain the first index set, where M is an integer, N is an integer, and N is less than or equal to M.
  • the DMRS associated with the first index is available according to the association relationship between the index and the DMRS, and it is determined that the transmission resource used for transmitting the sequence indicated by the first index is available.
  • determining that the DMRS associated with the first index is available according to the association relationship between the index and the DMRS can be implemented in combination with information about whether the DMRS is available or whether the time-frequency resource where the DMRS is located is available.
  • Case 2 The first information includes the association relationship between the index and the payload transmission resource.
  • the association relationship between the index and the payload transmission resource may include: the association relationship between all indexes and the payload transmission resource; or the association relationship between a part of the index and the payload transmission resource.
  • the index may be the index of the preamble sequence.
  • the association relationship between the index and the payload transmission resource may specifically include: the association relationship between all preambles and payload transmission resources; or, part of the preamble and payload transmission The association of resources.
  • step S33 determining that the first index satisfies a first preset rule according to the first information includes: determining that the first index belongs to the index according to the association relationship between the index and the payload transmission resource One of the specified indexes in the indexes associated with a payload transmission resource; or it is determined that the first index belongs to the second index set according to the association relationship between the index and the payload transmission resource, wherein the second index set is Obtained according to the association relationship between the index and the payload transmission resource; or it is determined according to the association relationship between the index and the payload transmission resource that the first index has an association relationship with at least one payload transmission resource; or according to the index
  • the association relationship with the payload transmission resource determines that the payload transmission resource associated with the first index is available.
  • the second index set is obtained according to the association relationship between the index and the payload transmission resource, and includes: obtaining the specified transmission resource according to the association relationship between the index and the payload transmission resource Among the P indexes associated with each transmission resource, Q indexes are used as indexes in the second index set to obtain the second index set, where P is an integer and Q is an integer, Q is less than or equal to P.
  • the payload transmission resource associated with the first index is available according to the association relationship between the index and the payload transmission resource, and the transmission used to transmit the sequence indicated by the first index is determined Resources are available.
  • the payload transmission resource associated with the first index is available according to the association relationship between the index and the payload transmission resource, which may be implemented in combination with information about whether the payload transmission resource is available.
  • Case 3 The first information includes the association relationship between the preamble transmission resource and the payload transmission resource.
  • step S33 determining that the first index satisfies a first preset rule according to the first information includes: determining the first index according to the association relationship between the preamble transmission resource and the payload transmission resource The remainder of the index to the first specified value is equal to the second specified value; or the ratio of the first index to the number of indexes is determined to be within the specified value range according to the association relationship between the preamble transmission resource and the payload transmission resource; or The association relationship between the preamble transmission resource and the payload transmission resource determines that the first index belongs to a third index set, where the third index set is obtained according to the association relationship between the preamble transmission resource and the payload transmission resource; Or it is determined that the payload transmission resource associated with the first preamble transmission resource is available according to the association relationship between the preamble transmission resource and the payload transmission resource, wherein the first preamble transmission resource is used to transmit the first index indication the sequence of.
  • the first specified value is determined according to the association relationship between the preamble transmission resource and the payload transmission resource, or is preset, or according to the code rate or modulation coding scheme adopted for payload transmission. and Coding Scheme, MCS) determined.
  • the second specified value may be 0, or a preamble transmission resource index, or determined according to the number or index of preamble transmission resources associated with one payload transmission resource.
  • the specified value range is determined according to the association relationship between the preamble transmission resource and the payload transmission resource, or is preset, or is determined according to the code rate or MCS used for payload transmission.
  • the third index set is obtained according to the association relationship between the preamble transmission resource and the payload transmission resource, including: obtaining the association relationship between the preamble transmission resource and the payload transmission resource and The preamble transmission resource associated with each payload transmission resource and the available index are used, and the specified index in the available index is used as the index in the third index set to obtain the third index set.
  • the payload transmission resource associated with the first preamble transmission resource is available according to the association relationship between the preamble transmission resource and the payload transmission resource, and it is determined that the first preamble transmission resource is available.
  • the payload transmission resource associated with the first preamble transmission resource is available according to the association relationship between the preamble transmission resource and the payload transmission resource, which may be implemented in combination with information about whether the payload transmission resource is available.
  • the first information includes the association relationship between the index and the payload transmission resource and the DMRS.
  • the association relationship between the index and the payload transmission resource and DMRS may include: the association relationship between all indexes and the payload transmission resource and DMRS; or the association relationship between a part of the index and the payload transmission resource and DMRS.
  • the index may be the index of the preamble sequence.
  • the association relationship between the index and the payload transmission resource and DMRS may specifically include: the association relationship between all preambles and the payload transmission resource and DMRS; or, a part of the preamble The association relationship with payload transmission resources and DMRS.
  • step S33 determining that the first index satisfies a first preset rule according to the first information includes: determining the first index according to the association relationship between the index and the payload transmission resource and the DMRS The index belongs to one of the specified indexes in the indexes associated with a resource set; or it is determined that the first index belongs to the fourth index set according to the association relationship between the index, the payload transmission resource and the DMRS, wherein the fourth index The set is obtained according to the association relationship between the index and the payload transmission resource and the DMRS; or it is determined that the first index has an association relationship with at least one resource set according to the association relationship between the index and the payload transmission resource and the DMRS; or , Determining that the resource set associated with the first index is available according to the association relationship between the index, the payload transmission resource and the DMRS; wherein the resource set is composed of a designated payload transmission resource and a designated DMRS.
  • the fourth index set is obtained according to the association relationship between the index and the payload transmission resource and the DMRS, including: obtaining and specifying according to the association relationship between the index and the payload transmission resource and the DMRS Among the S indexes associated with each resource set in the resource set, T indexes are used as the indexes in the fourth index set to obtain the fourth index set, wherein the resource set It is composed of designated payload transmission resources and designated DMRS.
  • S is an integer
  • T is an integer
  • T is less than or equal to S.
  • the resource set associated with the first index is available according to the association relationship between the index and the payload transmission resource and the DMRS, and the transmission used to transmit the sequence indicated by the first index is determined Resources are available.
  • the resource set associated with the first index is available according to the association relationship between the index, the payload transmission resource and the DMRS, which may be implemented in combination with information about whether the resource set is available.
  • Case 5 The first information includes the fifth index set.
  • the fifth index set may include a sequence index set or a logical index set, and may be semi-statically configured by the system or configured by system broadcast.
  • the system may semi-statically configure or broadcast the minimum index value and/or the maximum index value of the index set, so as to save signaling overhead.
  • step S33 determining that the first index satisfies a first preset rule according to the first information includes: determining that the first index belongs to the fifth index according to the fifth index set set.
  • the first information includes: indication information for indicating transmission content.
  • the transmission content includes: the sequence and payload indicated by the first index, or the payload, or the sequence indicated by the first index, or no content is transmitted.
  • the content to be transmitted may be determined according to the instruction information, and it may no longer be executed to determine whether the first index satisfies the first preset according to the first information. Steps to set rules.
  • the content to be transmitted includes the first message, which can control the transmission of the first message, thereby reducing transmission resource collisions and reducing transmission resources Waste, improve system access efficiency and transmission performance.
  • the random access process it is possible to control whether the UE adopts two-step random access according to the PUSCH collision situation in the two-step random access, so as to reduce the collision situation when sending the payload through the PUSCH and reduce the PUSCH transmission Transmission resource waste caused by failure can improve payload transmission performance, system access efficiency and transmission performance.
  • FIG. 5 is a schematic flowchart of a transmission method according to another embodiment of this application. As shown in FIG. 5, the method may include:
  • Step S51 Perform sequence detection to obtain the detected sequence.
  • Step S52 Acquire first information.
  • Step S53 It is determined according to the first information that the detected sequence satisfies a first preset rule, and then it is determined that the detected transmission content to be received includes a payload.
  • the first information includes at least one of the following:
  • the first information includes: instruction information for indicating transmission content.
  • the transmission content includes a sequence and a payload, or the payload, or the sequence, or no content is transmitted.
  • the first information includes indication information for indicating transmission content
  • the detected transmission content may be determined according to the indication information, and it may no longer be executed to determine whether the detected sequence meets the requirements based on the first information. Steps of the first preset rule.
  • the method after it is determined that the transmission content to be detected includes a payload, the method also needs to perform reception detection on the payload.
  • the method does not need to perform other detection.
  • the specific method for determining that the detected sequence satisfies the first preset rule according to the first information is the same as in the above embodiment, it is determined according to the first information that the first index satisfies the first
  • the preset rules are similar, so I won’t repeat them here.
  • FIG. 6 is a schematic flowchart of a random access method according to an embodiment of the application. This method can be applied to transmitters, including but not limited to terminals, user equipment, etc.
  • the first index is the index of the preamble to be used. Since the preamble index represents a preamble, in this embodiment, the preamble index and the preamble are no longer strictly distinguished, and the preamble will be uniformly used for description. Then, the method can include the following steps:
  • Step S301 Obtain a preamble to be used.
  • obtaining the preamble to be used includes: randomly selecting the preamble to be used, or obtaining the preamble to be used according to the system configuration.
  • Step S302 Acquire first information.
  • the first information may include: the association relationship between the preamble and the DMRS; or the association relationship between the preamble and the payload (Payload) transmission resource; or the association relationship between the preamble transmission resource and the payload transmission resource; or, the preamble and the payload transmission resource.
  • the association relationship between the preamble and the DMRS includes: the association relationship between all the preambles and the DMRS; or, the association relationship between a part of the preamble and the DMRS.
  • the association relationship between the preamble and the payload transmission resource includes: the association relationship between all preambles and the payload transmission resource; or the association relationship between a part of the preamble and the payload transmission resource.
  • the association relationship between the preamble and the payload transmission resource and the DMRS includes: the association relationship between all preambles and the payload transmission resource and the DMRS; or the association relationship between a part of the preamble and the payload transmission resource and the DMRS.
  • the payload transmission resource is a resource used to transmit a payload (Payload), or a physical uplink shared channel (PUSCH).
  • the payload transmission resource includes at least time domain and frequency domain resources, such as resource block (RB), symbol (symbol), time slot (slot), subframe (subframe), or time (occasion).
  • the payload is the payload in msgA in 2-step random access (2-step RACH).
  • the payload can be used to carry data information.
  • all preambles include: all preambles that can be used for two-step random access; or, all preambles in the designated preamble set; or, all available preambles.
  • a part of the preamble includes: a part of the preamble that can be used for two-step random access; or, a part of the preamble in a designated preamble set; or, a part of all available preambles.
  • the preamble transmission resource is a resource used for transmitting a preamble, or a resource used for random access, or a physical random access channel (PRACH).
  • the preamble transmission resources include at least time domain and frequency domain resources, such as resource block RB, symbol, time slot, or time occasion.
  • Step S303 It is determined according to the first information that the preamble to be used satisfies the first preset rule, and then it is determined that the content to be transmitted includes the first message.
  • the first message includes the preamble and payload to be used.
  • the first message is msgA in two-step random access, or the first message includes the payload.
  • the preamble to be used may be determined that the content to be transmitted is the preamble to be used, or subsequent transmission may not be performed.
  • the process of determining the content to be transmitted can be divided into the following situations.
  • the first information is the association relationship between the preamble and the DMRS, then determining the preamble to be used according to the first information satisfies the first preset rule, including: determining the preamble to be used according to the association relationship between the preamble and the DMRS Belongs to one of the designated preambles in the preambles associated with a DMRS; or, according to the association relationship between the preamble and DMRS, it is determined that the preamble to be used belongs to the first preamble set; or, according to the association relationship between the preamble and the DMRS There is an association relationship between the preamble to be used and at least one DMRS; or, according to the association relationship between the preamble and the DMRS, it is determined that the DMRS associated with the preamble to be used is available.
  • the first preamble set is obtained according to the association relationship between the preamble and the DMRS, and specifically includes: according to the association relationship between the preamble and the DMRS, obtaining N preambles of the M preambles associated with each DMRS in the specified DMRS , Taking the N preambles as preambles in the first preamble set, and finally obtains the first preamble set, where M is an integer, N is an integer, and N is less than or equal to M.
  • the designated DMRS can be determined according to the number of DMRS, or according to the code rate or MCS used for payload transmission.
  • the code rate or MCS used for payload transmission is related to the payload size and payload transmission resource size. For example, when the bit rate or MCS used for payload transmission is low, the number of designated DMRS can be more. It can be seen that when the number of designated DMRS is large, the number of preambles in the first preamble set will also be large.
  • the number of preambles associated with each DMRS may be the same or different.
  • the value of N may be determined according to the value of M, or may be determined according to the number of preambles and the number of DMRS.
  • the N preambles include: among the M preambles, N preambles obtained at a designated interval with a designated preamble as a starting point. For example: the first N preambles among the M preambles; or the last N preambles among the M preambles; or the middle N preambles among the M preambles; or, the M preambles The first N preambles with odd indexes; or, the first N preambles with even indexes among the M preambles.
  • the DMRS associated with the preamble to be used is available, which can be implemented in combination with information about whether the DMRS is available or whether the time-frequency resource where the DMRS is located is available.
  • the first information is the association relationship between the preamble and the payload transmission resource. Then, determining according to the first information that the preamble to be used satisfies the first preset rule, including: determining according to the association relationship between the preamble and the payload transmission resource The preamble to be used belongs to one of the designated preambles in the preambles associated with one payload transmission resource; or, according to the association relationship between the preamble and the payload transmission resource, it is determined that the preamble to be used belongs to the second preamble Set; or, according to the association relationship between the preamble and the payload transmission resource, it is determined that there is an association relationship between the preamble to be used and at least one payload transmission resource; or, according to the association relationship between the preamble and the payload transmission resource It is determined that the payload transmission resource associated with the preamble to be used is available.
  • the second preamble set is obtained according to the association relationship between the preamble and the payload transmission resource, and specifically includes: obtaining the association relationship with each of the specified transmission resources according to the association relationship between the preamble and the payload transmission resource P preambles of Q preambles, the Q preambles are used as preambles in the second preamble set to finally obtain the second preamble set, where P is an integer, Q is an integer, and Q is less than or equal to P.
  • the number of preambles associated with each transmission resource may be the same or different.
  • the value of Q may be determined according to the value of P, or it may be determined according to the number of preambles and the number of transmission resources, or it may be determined according to the code rate or MCS used for payload transmission.
  • the code rate or MCS used for payload transmission is related to the payload size and payload transmission resource size. For example, when the bit rate or MCS used for payload transmission is low, the value of Q can be larger. It can be seen that when the value of Q is larger, the number of preambles in the second preamble set will also be larger. In addition, when the number of designated transmission resources is large, the number of preambles in the second preamble set will also be large.
  • the Q preambles include: among the P preambles, Q preambles obtained at a designated interval with a designated preamble as a starting point. For example: the first Q preambles among the P preambles; or the last Q preambles among the P preambles; or the middle Q preambles among the P preambles; or, among the P preambles
  • the first Q of the P preambles have odd index preambles; or, the first Q of the P preambles have even index preambles.
  • the payload transmission resource associated with the preamble to be used is available according to the association relationship between the preamble and the payload transmission resource, which can be implemented in combination with the information about whether the payload transmission resource is available.
  • the first information is the association relationship between the preamble transmission resource and the payload transmission resource. Then, determining the preamble to be used according to the first information satisfies the first preset rule, including: according to the association between the preamble transmission resource and the payload transmission resource The relationship determines the preamble to be used and the remainder of the first specified value is equal to the second specified value; or, according to the association relationship between the preamble transmission resource and the payload transmission resource, it is determined that the ratio of the preamble to the number of preambles to be used is within the specified value range; Or, determining that the preamble to be used belongs to the third preamble set according to the association relationship between the preamble transmission resource and the payload transmission resource; or, determining the preamble transmission to be used according to the association relationship between the preamble transmission resource and the payload transmission resource The resource associated with the payload transmission resource is available.
  • the first specified value is determined according to the association relationship between the preamble transmission resource and the payload transmission resource, or is preset, or determined according to the code rate or MCS adopted for payload transmission.
  • the code rate or MCS used for payload transmission is related to the payload size and payload transmission resource size. For example, when the code rate or MCS adopted for payload transmission is low, the value of the first specified value may be smaller.
  • the second designated value may be 0, or a preamble transmission resource index, or determined according to the number or index of preamble transmission resources associated with one payload transmission resource.
  • the specified value range is determined according to the association relationship between the preamble transmission resource and the payload transmission resource, or is preset, or is determined according to the code rate or MCS used for payload transmission.
  • the code rate or MCS used for payload transmission is related to the payload size and payload transmission resource size. For example, when the code rate or MCS used for payload transmission is low, the specified value range may be larger.
  • the third preamble set is obtained according to the association relationship between the preamble transmission resource and the payload transmission resource, and specifically includes: obtaining the association relationship with each payload transmission resource according to the association relationship between the preamble transmission resource and the payload transmission resource
  • the preamble transmission resource, and the available preamble use the designated preamble in the available preamble as the preamble in the third preamble set to obtain the third preamble set.
  • the preamble transmission resource to be used is used to transmit the preamble to be used.
  • the payload transmission resource associated with the preamble transmission resource to be used is available, which can be implemented in combination with the information about whether the payload transmission resource is available.
  • the first information includes the association relationship between preamble and payload transmission resources and DMRS, and determining that the first index satisfies a first preset rule according to the first information includes: according to the preamble and payload transmission resources, and The association relationship of DMRS determines that the preamble to be used belongs to one of the designated preambles associated with a resource set; or, according to the association relationship between the preamble and the payload transmission resource and the DMRS, it is determined that the preamble to be used belongs to A fourth preamble set; or, according to the association relationship between the preamble and the payload transmission resource and the DMRS, it is determined that the preamble to be used has an association relationship with at least one resource set; or, according to the preamble and the payload transmission resource and the DMRS The association relationship determines that the resource set associated with the preamble to be used is available.
  • the resource set consists of designated payload transmission resources and designated DMRS.
  • the fourth preamble set is obtained according to the association relationship between the preamble and the payload transmission resource and the DMRS, including: obtaining the information from the specified resource set according to the association relationship between the preamble and the payload transmission resource and the DMRS Among the S preambles associated with each resource set, T preambles are used as the preambles in the fourth preamble set to obtain the fourth preamble set, where S is an integer and T is an integer, T is less than or equal to S.
  • the value of T may be determined according to the value of S, or according to the number of preambles and the number of resource sets, or according to the code rate or MCS used for payload transmission.
  • the code rate or MCS used for payload transmission is related to the payload size and payload transmission resource size. For example, when the bit rate or MCS used for payload transmission is low, the value of T can be larger. It can be seen that when the value of T is larger, the number of preambles in the fourth preamble set will also be larger. In addition, when the number of designated resource sets is large, the number of preambles in the fourth preamble set will also be large.
  • the resource set associated with the preamble to be used is available according to the association relationship between the preamble and the payload transmission resource and the DMRS, which can be implemented in combination with information about whether the resource set is available.
  • Case 5 The first information includes the fifth preamble set.
  • determining that the preamble to be used satisfies a first preset rule according to the first information includes: determining that the preamble to be used belongs to the fifth preamble set according to the fifth preamble set.
  • the first information further includes: indication information for indicating transmission content.
  • the transmission content includes: the preamble and payload to be used, or the payload, or the preamble to be used, or no content is transmitted.
  • the first information indicates to send msgA, or if the first information includes instruction information to send msgA, it is determined that the content to be transmitted is msgA; if the instruction information is not received, It is determined that the content to be transmitted is the preamble to be used.
  • no content is transmitted, such as NULL, or as a reserved indication field.
  • the content to be transmitted may be determined according to the instruction information, and it may no longer be performed to determine whether the preamble to be used meets the first requirement based on the first information. Steps to preset rules.
  • the method further includes:
  • Step S304 transmitting the content to be transmitted.
  • the preamble to be used can be sent through PRACH and the payload is sent through PUSCH, or the preamble and payload to be used can be sent through PUSCH; if the content to be transmitted is If the content includes a payload, the payload can be sent through the PUSCH; if the content to be transmitted is a preamble to be used, the preamble to be used can be sent through PRACH.
  • the first information includes: information configured by the system broadcast, or pre-configured by the system, or semi-statically configured by the system, or dynamically configured by the system, or Information carried by the system's downlink control information.
  • the association relationship between the preamble and the DMRS may be pre-configured by the system or configured by the system through signaling; it may also be based on the association relationship between the preamble and the payload transmission resource, or the preamble transmission resource and the payload transmission.
  • the resource association relationship, or the association relationship between the preamble and the payload transmission resource and the resource set formed by the DMRS is obtained.
  • the association relationship between the preamble and the payload transmission resource may be preconfigured by the system or configured by the system through signaling; it may also be based on the association relationship between the preamble and DMRS, or the preamble transmission resource and payload transmission.
  • the resource association relationship, or the association relationship between the preamble and the payload transmission resource and the resource set formed by the DMRS is obtained.
  • the association relationship between the preamble transmission resource and the payload transmission resource may be pre-configured by the system or configured by the system through signaling; it may also be based on the number of preamble transmission resources, the number of payload transmission resources, and Obtained by a preset rule, or obtained according to the association relationship between the synchronization signal block (Synchronization Signal Block, SSB) and the preamble transmission resource, the association relationship between the synchronization signal block and the payload transmission resource, etc.
  • SSB Synchronization Signal Block
  • the association relationship between the preamble and payload transmission resources and the DMRS may be pre-configured by the system or configured by the system through signaling; it may also be based on the association relationship between the preamble and the DMRS, or the transmission of the preamble and the payload. Obtained from the association relationship of resources, or the association relationship between preamble transmission resources and payload transmission resources.
  • the preamble transmission resources include time-frequency domain resources, such as PRACH, or PRACH occasion (PRACH occasion), or RACH occasion (RACH occasion, RO); payload transmission resources include time-frequency domain resources, for example: PUSCH, or PUSCH time (PUSCH occasion, PO), or Payload time (Payload occasion).
  • the embodiment of the present application provides a random access method, which can determine whether the content to be transmitted is msgA or the preamble according to the preamble to be used and the first information.
  • This method can control whether the UE adopts two-step random access according to the PUSCH collision in the two-step random access, thereby reducing the collision when sending payloads through PUSCH, and reducing the waste of transmission resources caused by PUSCH transmission failure. It can improve payload transmission performance and system access efficiency and transmission performance.
  • FIG. 7 is a schematic flowchart of a random access method according to another embodiment of this application. This method can be applied to a receiver, such as a base station receiver. The receiver can determine the transmission content to be received based on the detected preamble, and perform corresponding detection.
  • the method may include the following steps:
  • Step S201 Perform preamble detection to obtain the detected preamble.
  • Step S202 Acquire first information.
  • Step S203 It is determined according to the first information that the detected preamble satisfies a first preset rule, and then it is determined that the detected transmission content to be received includes a payload.
  • the first information includes: the association relationship between the preamble and the DMRS; or the association relationship between the preamble and the payload transmission resource; or the association relationship between the preamble transmission resource and the payload transmission resource; or the preamble and the payload transmission resource And the association relationship of DMRS; or, the preamble set.
  • the first information includes: indication information for indicating transmission content.
  • the transmission content includes: a preamble and a payload, or the payload, or the preamble, or no content is transmitted.
  • the first information includes instruction information for indicating transmission content
  • the detected transmission content may be determined according to the instruction information, and it may no longer be executed to determine whether the detected preamble meets the requirements of the first information. Steps of the first preset rule.
  • the method after determining that the transmission content to be received and detected includes the payload, the method also needs to perform reception detection on the payload. For example, for the case where the content transmitted by the transmitter is msgA in two-step random access.
  • the method does not need to perform other detections. For example, for the case where the content transmitted by the transmitter is the preamble, because the step The preamble detection has been completed in S201, so no other reception detection is required.
  • the specific method for determining that the detected preamble satisfies the first preset rule according to the first information is the same as that of the transmitter in the foregoing embodiment determining that the preamble to be used satisfies the first preset rule according to the first information
  • the method of the rule is similar, so I won't repeat it here.
  • the random access method provided in the embodiments of this application can not only solve the impact of PUSCH collision, but also help the receiver to distinguish the information sent by the transmitter, that is, to distinguish whether the UE uses two-step random access or four-step random access , Which is beneficial to control or reduce the detection complexity of the receiver.
  • FIG. 8 is a schematic flowchart of a random access method according to another embodiment of the application, as shown in FIG. 8 As shown, the method includes the following steps:
  • Step S401 Obtain the preamble to be used.
  • the UE obtains the preamble to be used by random selection, or the UE obtains the preamble to be used according to the system configuration, where the system configuration includes radio resource control (Radio Resource Control, RRC) signaling and downlink control information (Downlink Control). Control Information, DCI), etc.
  • RRC Radio Resource Control
  • DCI Downlink Control
  • the UE obtains the preamble to be used may obtain the index of the preamble, generate the corresponding preamble sequence according to the index, or obtain the corresponding preamble sequence from the preamble sequence set according to the index.
  • Step S402 Obtain the association relationship between the preamble and the DMRS.
  • the association relationship between the preamble and the DMRS includes: the association relationship between all the preambles and the DMRS; or the association relationship between a part of the preamble and the DMRS.
  • all preambles include: all preambles that can be used for two-step random access; or, all preambles in the designated preamble set; or, all available preambles.
  • a part of the preamble includes: a part of the preamble that can be used for two-step random access; or, a part of the preamble in the designated preamble set; or, a part of the preamble that is available.
  • Step S403 Determine the content to be transmitted according to the preamble to be used and the obtained association relationship between the preamble and the DMRS. Specifically, it is determined whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the DMRS. If so, the UE determines that the content it will transmit is the first message.
  • the first message may be msgA in two-step random access, which includes the preamble and the payload to be used, or the first message includes the payload. Otherwise, the UE determines that the content it will transmit is the preamble to be used, or does not transmit.
  • determining whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the DMRS includes at least one of the following methods:
  • the UE determines whether the preamble to be used belongs to one of the designated preambles associated with one DMRS according to the association relationship between the preamble and the DMRS. If it is, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. In other words, the UE will perform random access according to a two-step random access procedure. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used. In other words, the UE will only send the preamble and will perform random access according to the four-step random access procedure.
  • the UE can obtain M preambles associated with a DMRS according to the association relationship between the preamble and the DMRS. If the preamble to be used is one of the N preambles of the M preambles, it is considered that the preamble to be used belongs to a DMRS. One of the specified preambles in the associated preamble.
  • N of them can be used for two-step random access, and if other preambles are used, even if the UE supports the function of two-step random access, the UE will Perform random access according to the four-step random access process.
  • the UE obtains the first preamble set according to the association relationship between the preamble and the DMRS, and if the preamble to be used is included in the first preamble set, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used.
  • the UE obtains the first preamble set according to the association relationship between the preamble and the DMRS, including: the UE obtains N preambles out of the M preambles associated with each DMRS in the designated DMRS according to the association relationship between the preamble and the DMRS, Taking these N preambles as preambles in the first preamble set, the first preamble set is finally obtained.
  • the designated DMRS here can be all DMRS or part of DMRS. For example, when there are multiple sets of DMRS, the designated DMRS can be one of the DMRS.
  • the designated DMRS can be determined based on the number of DMRS, or based on the bit rate or MCS used for payload transmission.
  • the code rate or MCS used for payload transmission is related to the payload size and payload transmission resource size. For example, when the bit rate or MCS used for payload transmission is low, the number of designated DMRS can be more.
  • the preamble in the first preamble set can be used for two-step random access, and if other preambles are used, even if the UE supports the two-step random access function, the UE will follow the four-step random access process. Perform random access.
  • the UE determines whether there is an association relationship between the preamble to be used and at least one DMRS according to the association relationship between the preamble and the DMRS. If it is, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content to be transmitted is the preamble to be used.
  • the UE determines whether the DMRS associated with the preamble to be used is available according to the association relationship between the preamble and the DMRS. If it is available, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content to be transmitted is the preamble to be used, or the UE does not perform transmission.
  • the UE determines whether the DMRS associated with the preamble to be used is available according to the association relationship between the preamble and the DMRS, which can be implemented in combination with information about whether the DMRS is available or whether the time-frequency resource where the DMRS is located is available.
  • the UE can perform two-step random access. Otherwise, even if the UE supports the two-step random access function, the UE will follow the four-step random access process. Random access, or abandon this access attempt.
  • the association relationship between the preamble and the DMRS may be the association relationship between all preambles and the DMRS, or the association relationship between a part of the preamble and the DMRS.
  • the association relationship between the preamble and the DMRS is specifically the association relationship between a part of the preamble and the DMRS.
  • the UE determines whether there is an association relationship between the preamble to be used and at least one DMRS according to the association relationship, that is, determines whether the preamble to be used is one of the preambles. It can be seen that in this method, this part of the preamble can be used for two-step random access, and if other preambles are used, even if the UE supports the two-step random access function, the UE will follow the four-step random access process. Perform random access.
  • the number of preambles associated with each DMRS may be the same or different.
  • M is an integer
  • N is an integer
  • N is less than or equal to M.
  • the value of N can be determined according to the value of M, or according to the number of preambles and the number of DMRS.
  • the foregoing N preambles include: N preambles obtained at a specified interval from the designated preamble among the M preambles. For example: the first N preambles among the M preambles; or the last N preambles among the M preambles; or the middle N preambles among the M preambles; or, the M preambles The first N preambles with odd indexes; or, the first N preambles with even indexes among the M preambles.
  • the method further includes:
  • Step S404 transmitting the content to be transmitted.
  • the preamble can be sent through PRACH, the payload can be sent through PUSCH, or the msgA can be sent through PUSCH; if the content to be transmitted is the preamble, the preamble can be sent through PRACH.
  • the association relationship between the preamble and the DMRS may be broadcasted by the system, or preconfigured by the system, or semi-statically configured by the system; it may also be based on the association relationship between the preamble and the payload transmission resource, or the preamble transmission resource. Obtained from the association relationship with the payload transmission resource, or the association relationship between the preamble and the resource set, where the resource set includes the payload transmission resource and DMRS.
  • the preamble transmission resource includes: PRACH, or PRACH occasion, or RACH occasion;
  • the payload transmission resource includes: PUSCH, or, PUSCH occasion, or, Payload occasion.
  • the random access method of this embodiment it is possible to determine whether the content to be transmitted is msgA or the preamble according to the preamble to be used and the association relationship between the preamble and the DMRS.
  • This method can control whether the UE adopts two-step random access according to the PUSCH collision in the two-step random access, thereby reducing the collision when sending payloads through PUSCH, and reducing the waste of transmission resources caused by PUSCH transmission failure. It can improve payload transmission performance and system access efficiency and transmission performance.
  • the number of DMRS When the number of DMRS is small and the number of preambles associated with each DMRS is large, the number of UEs using the same PUSCH to transmit payload may be large, and there will be more serious PUSCH collisions, which will affect the payload transmission performance , Will cause many UEs to fall back from 2-step RACH to 4-step RACH, which will lead to waste of transmission resources and affect system access efficiency and transmission performance.
  • only one of the M preambles associated with each DMRS in the designated DMRS may be allowed to be used for two-step random access, so that DMRS collisions can be avoided, and PUSCH collisions can also be controlled.
  • FIG. 9 is a schematic flowchart of a random access method according to another embodiment of the application, as shown in FIG. As shown, the method includes the following steps:
  • Step S501 Obtain the preamble to be used.
  • the UE obtains the preamble to be used by random selection, or the UE obtains the preamble to be used according to the system configuration.
  • Step S502 Obtain the association relationship between the preamble and the payload transmission resource.
  • the association relationship between the preamble and the payload transmission resource includes: the association relationship between all preambles and the payload transmission resource; or the association relationship between a part of the preamble and the payload transmission resource.
  • the payload transmission resource is a transmission resource used to transmit the payload.
  • the payload is the payload in msgA in two-step random access; or, the payload is used to carry data information.
  • the payload transmission resource includes: PUSCH, or PUSCH occasion, or Payload occasion.
  • all preambles include: all preambles that can be used for two-step random access; or, all preambles in the designated preamble set; or, all available preambles.
  • a part of the preamble includes: a part of the preamble that can be used for two-step random access; or, a part of the preamble in the designated preamble set; or, a part of the preamble that is available.
  • Step S503 Determine the content to be transmitted according to the preamble to be used and the obtained association relationship between the preamble and the payload transmission resource. Specifically, the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the payload transmission resource. If so, the UE determines that the content it will transmit is the first message.
  • the first message may be msgA in two-step random access, which includes the preamble and the payload to be used, or the first message includes the payload. Otherwise, the UE determines that the content it will transmit is the preamble to be used, or does not transmit.
  • the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the payload transmission resource, including at least one of the following methods:
  • the UE determines whether the preamble to be used belongs to one of the designated preambles in the preamble associated with one payload transmission resource according to the association relationship between the preamble and the payload transmission resource. If it is, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA, where msgA includes the preamble and payload to be used. In other words, the UE will perform random access according to a two-step random access procedure. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used. In other words, the UE will only send the preamble and will perform random access according to the four-step random access procedure.
  • the UE can obtain P preambles associated with a payload transmission resource according to the association relationship between the preamble and the payload transmission resource. If the preamble to be used is one of the Q preambles of the P preambles, it is considered to be used The preamble belongs to one of the specified preambles in the preamble associated with a payload transmission resource.
  • Q preambles can be used for two-step random access, and if other preambles are used, even if the UE supports the function of two-step random access , UE will also perform random access according to the four-step random access process.
  • the UE obtains the second preamble set according to the association relationship between the preamble and the payload transmission resource. If the preamble to be used is included in the second preamble set, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used.
  • the UE obtains the second preamble set according to the association relationship between the preamble and the payload transmission resource, including: the UE obtains the P associated with each transmission resource in the specified transmission resource according to the association relationship between the preamble and the payload transmission resource Q preambles in the two preambles are used as the preambles in the second preamble set, and the second preamble set is finally obtained.
  • the designated transmission resource here can be all available transmission resources, or part of the available transmission resources. For example, when there are multiple sets of transmission resources, the designated transmission resource may be one of the transmission resources.
  • the preamble in the second preamble set can be used for two-step random access, and if other preambles are used, even if the UE supports the two-step random access function, the UE will follow the four-step random access process To perform random access.
  • the UE determines whether there is an association relationship between the preamble to be used and at least one payload transmission resource according to the association relationship between the preamble and the payload transmission resource, and if so, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used.
  • the UE determines whether the payload transmission resource associated with the preamble to be used is available according to the association relationship between the preamble and the payload transmission resource. If it is available, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content to be transmitted is the preamble to be used, or the UE does not perform transmission.
  • the UE determines whether the payload transmission resource associated with the preamble to be used is available according to the association relationship between the preamble and the payload transmission resource, which can be implemented in combination with the information about whether the payload transmission resource is available.
  • the UE can perform two-step random access. Otherwise, even if the UE supports the two-step random access function, the UE will follow the four-step random access Process to perform random access, or abandon this access attempt.
  • the association between the preamble and the payload transmission resource can be the association between all preambles and the payload transmission resource, or part of the preamble and the payload transmission resource. connection relation.
  • the association relationship between the preamble and the payload transmission resource is specifically the association relationship between a part of the preamble and the payload transmission resource.
  • the UE determines whether there is an association relationship between the preamble to be used and at least one payload transmission resource according to the association relationship, that is, it determines whether the preamble to be used is one of the preambles. It can be seen that in this method, this part of the preamble can be used for two-step random access, and if other preambles are used, even if the UE supports the two-step random access function, the UE will follow the four-step random access process. Perform random access.
  • the number of preambles associated with each transmission resource may be the same or different.
  • P is an integer
  • Q is an integer
  • Q is less than or equal to P.
  • the value of Q can be determined according to the value of P, or according to the number of preambles and the number of transmission resources, or according to the code rate or MCS used for payload transmission.
  • the code rate or MCS used for payload transmission is related to the payload size and payload transmission resource size. For example, when the bit rate or MCS used for payload transmission is low, the value of Q can be larger.
  • the foregoing Q preambles include: among the P preambles, Q preambles obtained at a specified interval with a designated preamble as a starting point. For example: the first Q preambles among the P preambles; or the last Q preambles among the P preambles; or the middle Q preambles among the P preambles; or, among the P preambles
  • the first Q of the P preambles have odd index preambles; or, the first Q of the P preambles have even index preambles.
  • the method further includes:
  • Step S504 transmitting the content to be transmitted
  • the preamble can be sent through PRACH, the payload can be sent through PUSCH, or the msgA can be sent through PUSCH; if the content to be transmitted is the preamble, the preamble can be sent through PRACH.
  • the association relationship between the preamble and the payload transmission resource may be broadcasted by the system, or preconfigured by the system, or semi-statically configured by the system; it may also be based on the association relationship between the preamble and DMRS, or the preamble transmission resource Obtained from the association relationship with the payload transmission resource, or the association relationship between the preamble and the resource set, where the resource set includes the payload transmission resource and DMRS.
  • the preamble transmission resource includes: PRACH, or PRACH occasion, or RACH occasion;
  • the payload transmission resource includes: PUSCH, or, PUSCH occasion, or, Payload occasion.
  • the random access method of this embodiment it is possible to determine whether the content to be transmitted is msgA or the preamble according to the preamble to be used and the association relationship between the preamble and the payload transmission resource.
  • This method can control whether the UE adopts two-step random access according to the PUSCH collision in the two-step random access, thereby reducing the collision when sending payloads through PUSCH, and reducing the waste of transmission resources caused by PUSCH transmission failure. It can improve payload transmission performance and system access efficiency and transmission performance.
  • the number of payload transmission resources is small and the number of preambles associated with each payload transmission resource is large, the number of UEs that use the same PUSCH to send payloads may be large, and there will be more serious PUSCH collisions. Will affect the payload transmission performance. Therefore, many UEs fall back from 2-step RACH to 4-step RACH, which leads to waste of transmission resources and affects system access efficiency and transmission performance.
  • FIG. 10 is a schematic flowchart of a random access method according to another embodiment of the application, such as As shown in Figure 10, the method includes the following steps:
  • Step S601 Obtain the preamble to be used.
  • the UE obtains the preamble to be used by random selection, or the UE obtains the preamble to be used according to the system configuration.
  • Step S602 Obtain the association relationship between the preamble transmission resource and the payload transmission resource.
  • the preamble transmission resource includes: PRACH, or PRACH occasion, or RACH occasion.
  • the payload transmission resource includes: PUSCH, or PUSCH occasion, or Payload occasion.
  • the association relationship between the preamble transmission resource and the payload transmission resource may be a one-to-one relationship or a many-to-one relationship.
  • Step S603 Determine the content to be transmitted according to the preamble to be used and the obtained association relationship between the preamble transmission resource and the payload transmission resource. Specifically, the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble transmission resource and the payload transmission resource. If so, the UE determines that the content it will transmit is the first message.
  • the first message may be msgA in two-step random access, which includes the preamble and the payload to be used, or the first message includes the payload. Otherwise, the UE determines that the content it will transmit is the preamble to be used, or does not transmit.
  • the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble transmission resource and the payload transmission resource, including at least one of the following methods:
  • the UE determines whether the remainder of the first specified value of the preamble to be used is equal to the second specified value according to the association relationship between the preamble transmission resource and the payload transmission resource. If it is, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used.
  • the first specified value may be determined according to the association relationship between the preamble transmission resource and the payload transmission resource. For example, according to the association relationship between the preamble transmission resource and the payload transmission resource, the number of preamble transmission resources associated with each payload transmission resource can be obtained, and the first specified value is determined according to the quantity.
  • the first designated value may also be preset, or determined according to the bit rate or MCS adopted for payload transmission.
  • the second specified value may be 0, or a preamble transmission resource index, or determined according to the number or index of the preamble transmission resource associated with a payload transmission resource, for example, if the preamble transmission associated with a payload transmission resource There are two resources, and for these two preamble transmission resources, the second specified value is 0, 1, or 1, 2 respectively.
  • the UE determines whether the ratio of the preamble to be used to the number of preambles is within the specified value range according to the association relationship between the preamble transmission resource and the payload transmission resource. If it is, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used.
  • the specified value range may be determined according to the association relationship between the preamble transmission resource and the payload transmission resource. For example, according to the association relationship between the preamble transmission resource and the payload transmission resource, the quantity of the preamble transmission resource associated with each payload transmission resource can be obtained, and the specified value range is determined according to the quantity.
  • the specified value range may also be preset, or determined according to the bit rate or MCS used for payload transmission.
  • the UE determines that the content to be transmitted is msgA.
  • msgA includes the preamble and payload to be used. In other words, the UE will perform random access according to a two-step random access procedure. Otherwise, the UE determines that the content it will transmit is the preamble to be used. In other words, the UE will only send the preamble and will perform random access according to the four-step random access procedure.
  • the preamble whose judgment result is yes can be used for two-step random access. If other preambles are used, even if the UE supports the two-step random access function, the UE will perform random access according to the four-step random access process.
  • the UE obtains the third preamble set according to the association relationship between the preamble transmission resource and the payload transmission resource. If the preamble to be used is included in the third preamble set, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used.
  • the UE obtains the third preamble set according to the association relationship between the preamble transmission resource and the payload transmission resource, including: the UE obtains the transmission resource with each payload according to the association relationship between the preamble transmission resource and the payload transmission resource Associated preamble transmission resources and available preambles, the designated preamble in the available preambles is used as the preamble in the third preamble set to obtain the third preamble set.
  • the index of the available preamble can be taken as the remainder of the first specified value, and the preamble index with the remainder of the second specified value can be obtained, and these preambles can be used as the preamble in the third preamble set.
  • the preamble in the third preamble set can be used for two-step random access, and if other preambles are used, even if the UE supports the two-step random access function, the UE will follow the four-step Random access process to perform random access.
  • the UE determines that the payload transmission resource associated with the preamble transmission resource to be used is available according to the association relationship between the preamble transmission resource and the payload transmission resource. If it is available, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content to be transmitted is the preamble to be used, or the UE does not perform transmission.
  • the preamble transmission resource to be used is used to transmit the preamble to be used.
  • the payload transmission resource associated with the preamble transmission resource to be used is available according to the association relationship between the preamble transmission resource and the payload transmission resource, which can be implemented in combination with the information about whether the payload transmission resource is available.
  • the UE can perform two-step random access. Otherwise, even if the UE supports the two-step random access function, the UE will follow the four-step random access function. Perform random access during the access process, or give up this access attempt.
  • the method further includes:
  • Step S604 transmitting the content to be transmitted.
  • the preamble can be sent through PRACH, the payload can be sent through PUSCH, or the msgA can be sent through PUSCH. If the content to be transmitted is a preamble, the preamble can be sent through PRACH.
  • the association relationship between the preamble transmission resource and the payload transmission resource can be broadcast by the system, or pre-configured by the system, or semi-statically configured by the system; it can also be based on the number of preamble transmission resources and payload transmission.
  • the number of resources and the preset rules are obtained, or according to the association relationship between the synchronization signal block SSB and the preamble transmission resource, and the association relationship between the synchronization signal block SSB and the payload transmission resource.
  • the random access method of this embodiment it is possible to determine whether the content to be transmitted is msgA or the preamble according to the preamble to be used and the association relationship between the preamble transmission resource and the payload transmission resource.
  • This method can control whether the UE adopts two-step random access according to the PUSCH collision in the two-step random access, thereby reducing the collision when sending payloads through PUSCH, and reducing the waste of transmission resources caused by PUSCH transmission failure. It can improve payload transmission performance and system access efficiency and transmission performance.
  • the number of payload transmission resources is small and the number of preamble transmission resources that are associated with each payload transmission resource is large, the number of UEs using the same PUSCH to send payloads may be large, and there will be more serious PUSCHs. Collision will affect the payload transmission performance and cause many UEs to fall back from 2-step RACH to 4-step RACH, which in turn leads to waste of transmission resources and affects system access efficiency and transmission performance.
  • FIG. 11 is a schematic flowchart of a random access method according to another embodiment of the application, as shown in FIG. 11 As shown, the method includes the following steps:
  • Step S701 Obtain the preamble to be used.
  • the UE obtains the preamble to be used by random selection, or the UE obtains the preamble to be used according to the system configuration.
  • Step S702 Obtain the association relationship between the preamble and the resource set.
  • the resource set includes designated payload transmission resources and designated DMRS.
  • the association relationship between the preamble and the resource set includes: the association relationship between all preambles and the resource set; or, the association relationship between some preambles and the resource set.
  • the payload transmission resource is a transmission resource used to transmit the payload.
  • the payload is the payload in msgA in two-step random access; or, the payload is used to carry data information.
  • the payload transmission resource includes: PUSCH, or PUSCH occasion, or Payload occasion.
  • all preambles include: all preambles that can be used for two-step random access; or, all preambles in the designated preamble set; or, all available preambles.
  • a part of the preamble includes: a part of the preamble that can be used for two-step random access; or, a part of the preamble in the designated preamble set; or, a part of the preamble that is available.
  • Step S703 Determine the content to be transmitted according to the preamble to be used and the obtained association relationship between the preamble and the resource set. Specifically, the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the resource set. If so, the UE determines that the content it will transmit is the first message.
  • the first message may be msgA in two-step random access, which includes the preamble and the payload to be used, or the first message includes the payload. Otherwise, the UE determines that the content it will transmit is the preamble to be used, or does not transmit.
  • the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the resource set, including at least one of the following methods:
  • the UE determines whether the preamble to be used belongs to one of the designated preambles associated with a resource set according to the association relationship between the preamble and the resource set. If it is, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA, where msgA includes the preamble and payload to be used. In other words, the UE will perform random access according to a two-step random access procedure. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used. In other words, the UE will only send the preamble and will perform random access according to the four-step random access procedure.
  • the UE can obtain S preambles associated with a resource set according to the association relationship between the preamble and the resource set. If the preamble to be used is one of the T preambles among the S preambles, it is considered that the preamble to be used belongs to and One of the specified preambles in the preamble associated with a resource collection.
  • T preambles can be used for two-step random access, and if other preambles are used, even if the UE supports the two-step random access function, the UE Random access will also be performed according to a four-step random access procedure.
  • the UE obtains the fourth preamble set according to the association relationship between the preamble and the resource set, and if the preamble to be used is included in the fourth preamble set, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used.
  • the UE obtains the fourth preamble set according to the association relationship between the preamble and the resource set, including: according to the association relationship between the preamble and the resource set, the UE obtains one of the S preambles associated with each resource set in the specified resource set T preambles, these T preambles are used as preambles in the fourth preamble set, and finally the fourth preamble set is obtained.
  • the specified resource collection here can be all available resource collections or part of the available resource collections.
  • the designated resource set may be one of the resource sets.
  • the preamble in the fourth preamble set can be used for two-step random access, and if other preambles are used, even if the UE supports the two-step random access function, the UE will follow the four-step random access process To perform random access.
  • the UE determines whether there is an association relationship between the preamble to be used and at least one resource set according to the association relationship between the preamble and the resource set, and if so, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used.
  • the UE determines whether the resource set associated with the preamble to be used is available according to the association relationship between the preamble and the resource set. If it is available, it is considered that the first preset rule is satisfied. Then, for example, the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied. Then, for example, the UE determines that the content it will transmit is the preamble to be used.
  • the UE determines whether the resource set associated with the preamble to be used is available according to the association relationship between the preamble and the resource set, which can be implemented in combination with the information about whether the resource set is available.
  • the UE can perform two-step random access. Otherwise, even if the UE supports the two-step random access function, the UE will follow the four-step random access process. Perform random access, or abandon this access attempt.
  • the association relationship between the preamble and the resource set may be the association relationship between all preambles and the resource set, or the association relationship between a part of the preamble and the resource set.
  • the association relationship between the preamble and the resource set is specifically the association relationship between a part of the preamble and the resource set.
  • the UE determines, according to the association relationship, whether there is an association relationship between the preamble to be used and at least one resource set, that is, it determines whether the preamble to be used is one of the preambles. It can be seen that in this method, this part of the preamble can be used for two-step random access, and if other preambles are used, even if the UE supports the two-step random access function, the UE will follow the four-step random access process. Perform random access.
  • the number of preambles associated with each resource set may be the same or different.
  • S is an integer
  • T is an integer
  • T is less than or equal to S.
  • the value of T can be determined according to the value of S, or according to the number of preambles and the number of resource sets, or according to the code rate or MCS used for payload transmission.
  • the code rate or MCS used for payload transmission is related to the payload size and payload transmission resource size. For example, when the bit rate or MCS used for payload transmission is low, the value of T can be larger.
  • the foregoing T preambles include: T preambles obtained at a specified interval from the specified preamble among the S preambles. For example: the first T preambles among the S preambles; or the last T preambles among the S preambles; or the middle T preambles among the S preambles; or, among the S preambles
  • the first T of the preambles have odd indexes; or, the first T of the S preambles have even indexes.
  • the method further includes:
  • Step S704 transmitting the content to be transmitted.
  • the preamble can be sent through PRACH, the payload can be sent through PUSCH, or the msgA can be sent through PUSCH; if the content to be transmitted is the preamble, the preamble can be sent through PRACH.
  • the association relationship between the preamble and the resource set can be broadcast by the system, or pre-configured by the system, or semi-statically configured by the system; it can also be based on the association relationship between the preamble and DMRS, or the transmission of the preamble and the payload. Obtained from the association relationship of resources, or the association relationship between preamble transmission resources and payload transmission resources.
  • the preamble transmission resource includes: PRACH, or PRACH occasion, or RACH occasion;
  • the payload transmission resource includes: PUSCH, or, PUSCH occasion, or, Payload occasion.
  • the random access method of this embodiment it is possible to determine whether the content to be transmitted is msgA or the preamble according to the preamble to be used and the association relationship between the preamble and the resource set.
  • This method can control whether the UE adopts two-step random access according to the PUSCH collision in the two-step random access, so as to reduce the collision when sending payload through PUSCH, and reduce the waste of transmission resources caused by PUSCH transmission failure. Improve payload transmission performance and system access efficiency and transmission performance.
  • each resource set includes one payload transmission resource and one DMRS, and only one of the S preambles associated with each resource set in the specified resource set can be used for two-step random access. It can avoid DMRS collisions and control PUSCH collisions.
  • random access can be further performed according to the random access method described in the foregoing embodiment, including: obtaining the preamble to be used; obtaining the first information ; Determine the content to be transmitted according to the preamble to be used and the first information.
  • the first information includes: the association relationship between the preamble and the DMRS; or the association relationship between the preamble and the payload transmission resource; or the association relationship between the preamble transmission resource and the payload transmission resource; or the preamble and the payload transmission resource And the association relationship of DMRS; or, the preamble set.
  • the first information may further include: instruction information for indicating transmission content; wherein, the transmission content includes: the preamble and payload to be used, or the payload, or the payload to be used Lead, or, do not transmit any content.
  • the UE determines that the content to be transmitted is msgA, and the msgA includes the preamble and payload to be used, the UE performs random access according to the 2-step RACH. If the UE determines that the content to be transmitted is the preamble to be used, the UE performs random access according to the 4-step RACH. In other words, for UEs that can adopt two-step random access, the random access method described in the foregoing embodiment can control whether these UEs actually adopt two-step random access. In order to reduce the impact of PUSCH collision, some UEs that can adopt two-step random access will perform random access according to 4-step RACH.
  • the preamble in the preamble set A is used for four-step random access
  • the preamble in the preamble set B is used for two-step random access.
  • the UE that can use the preamble in the preamble set B is a UE that supports two-step random access.
  • the UE If the UE only supports four-step random access, or the UE selects the preamble in the preamble set A, the UE performs random access according to the 4-step RACH process.
  • the UE may further perform random access according to the random access method described in the foregoing embodiment, including: obtaining the preamble to be used; Acquire first information; determine the content to be transmitted according to the preamble to be used and the first information.
  • the first information includes: the association relationship between the preamble and the DMRS; or the association relationship between the preamble and the payload transmission resource; or the association relationship between the preamble transmission resource and the payload transmission resource; or the preamble and the payload transmission resource And the association relationship of DMRS; or, the preamble set.
  • the first information may further include: instruction information for indicating transmission content; wherein, the transmission content includes: the preamble and payload to be used, or the payload, or the payload to be used Lead, or, do not transmit any content.
  • the preamble to be used is the preamble in the preamble set B.
  • the arrived preamble is also the preamble in the preamble set B.
  • the UE determines that the content to be transmitted is msgA, and the msgA includes the preamble and payload to be used, the UE performs random access according to 2-step RACH. If the UE determines that the content to be transmitted is the preamble to be used, the UE performs random access according to the 4-step RACH. In other words, for UEs that support two-step random access, the random access method described in the foregoing embodiment can control whether these UEs actually use two-step random access. In order to reduce the impact of PUSCH collision, some UEs that support two-step random access will perform random access according to 4-step RACH.
  • This implementation manner provides a transmission method that can be applied to a transmitter, including but not limited to a terminal or user equipment UE.
  • the UE performs transmission according to the transmission method described in the foregoing embodiment, including: obtaining a first index; obtaining first information; and determining the content to be transmitted according to the first index and the first information.
  • the UE After determining the content to be transmitted, the UE can transmit the content to be transmitted.
  • the first index is a logical index and has no specific physical meaning.
  • the first index may also be an index obtained according to designated information, where the designated information includes identification information and the like.
  • the first index can be obtained through random generation or random selection, or obtained according to system configuration.
  • the first information includes: the association relationship between the index and the DMRS; or the association relationship between the index and the payload transmission resource; or the association relationship between the index and the payload transmission resource and the DMRS; or, the index set.
  • determining the content to be transmitted according to the first index and the first information includes: determining whether the first index meets a first preset rule according to the first information. If so, the UE determines that the content it will transmit includes a payload. Otherwise, the UE determines that it will not transmit.
  • the transmission method of this embodiment can determine whether to perform payload transmission according to the first index and the first information, and can control or reduce the collision of the payload transmission, thereby improving the payload transmission performance and the system transmission performance.
  • Embodiment 1 Based on Embodiment 1, an application example is provided. In this application example, it is assumed that there are 64 preambles with indexes of 0,1,...,63 respectively. These 64 preambles can all be used for two-step random access.
  • the UE obtains the preamble to be used, which is assumed to be preamble 1.
  • the UE also obtains the association relationship between the preamble and the DMRS. As shown in FIG. 12, in the association relationship, there are 8 DMRS with indexes of 0, 1, ..., 7, and every 8 preambles are associated with one DMRS. In other words, there is an association relationship between all preambles and DMRS.
  • the UE determines the content to be transmitted according to the preamble to be used and the obtained association relationship between the preamble and the DMRS. Specifically, the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the DMRS. If so, the UE determines that the content to be transmitted is msgA. Among them, msgA includes the preamble and payload to be used, or msgA includes the payload. Otherwise, the UE determines that the content it will transmit is the preamble to be used.
  • the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the DMRS, including the following methods, for example:
  • Manner 1 The UE determines whether the preamble to be used belongs to one of the designated preambles in the preamble associated with a DMRS according to the association relationship between the preamble and the DMRS. If it is, the first preset rule is satisfied, and the UE determines that the content to be transmitted is msgA. Otherwise, the first preset rule is not satisfied, and the UE determines that the content to be transmitted is the preamble to be used.
  • the UE determines that the content to be transmitted is msgA; or, suppose that the first preset rule is the first preamble among the preambles associated with a DMRS, and the preamble 1 is not associated with DMRS 0 The first preamble among the eight preambles, that is, preamble 1 does not satisfy the first preset rule. Therefore, the UE determines that the content to be transmitted is the preamble to be used, that is, preamble 1.
  • Manner 2 The UE obtains the first preamble set according to the association relationship between the preamble and the DMRS, and if the preamble to be used is included in the first preamble set, the first preset rule is satisfied. The UE determines that the content to be transmitted is msgA. Otherwise, the first preset rule is not satisfied. The UE determines that the content it will transmit is the preamble to be used.
  • the UE obtains the first two preambles among the eight preambles associated with each DMRS, uses these two preambles as the preambles in the first preamble set, and finally obtains the first preamble set, namely ⁇ Leading 0, Leading 1, Leading 8, Leading 9,..., Leading 56, Leading 57 ⁇ . It can be seen that preamble 1 is included in the first preamble set. Therefore, the UE determines that the content it will transmit is msgA.
  • the UE obtains the first preamble among the eight preambles associated with each DMRS according to the association relationship between the preamble and the DMRS, uses this preamble as the preamble in the first preamble set, and finally obtains the first preamble set, namely ⁇ Leading 0, Leading 8,..., Leading 56 ⁇ . It can be seen that preamble 1 is not included in the first preamble set. Therefore, the UE determines that the content it will transmit is the preamble to be used, that is, preamble 1.
  • the UE sends the content to be transmitted.
  • Embodiment 1 Based on Embodiment 1, another application example is provided. In this application example, it is assumed that there are 64 preambles with indexes of 0, 1, ..., 63 respectively, and these 64 preambles can be used for two-step random access.
  • the UE obtains the preamble to be used, which is assumed to be preamble 1.
  • the UE also obtains the association relationship between the preamble and the DMRS.
  • association relationship there are 8 DMRS with indexes 0, 1,..., 7, respectively, and 2 preambles are respectively associated with a DMRS, for example , Leading 0, Leading 1 are associated with DMRS 0, others are similar.
  • leading 0, Leading 1 are associated with DMRS 0 others are similar.
  • the UE determines the content to be transmitted according to the preamble to be used and the obtained association relationship between the preamble and the DMRS. For example, the UE determines whether the preamble to be used has an association relationship with at least one DMRS according to the association relationship between the preamble and the DMRS, If it is, the UE determines that the content to be transmitted is msgA; otherwise, the UE determines that the content to be transmitted is the preamble to be used.
  • the UE determines that the content to be transmitted is msgA.
  • the UE sends the content to be transmitted.
  • the UE determines that the content to be transmitted is The preamble to be used, that is, preamble 7.
  • the association relationship between the preamble and the DMRS can be semi-statically configured or semi-statically changed.
  • the association relationship between preamble and DMRS may also be: 1 preamble is associated with one DMRS, for example, preamble 0 is associated with DMRS 0, preamble 8 is associated with DMRS 1, preamble 16 is associated with DMRS 2,..., preamble 56 is associated with DMRS 7 Association.
  • preamble to be used obtained by the UE is preamble 1
  • the preamble 1 is not associated with any DMRS
  • the UE determines that the content to be transmitted is the preamble to be used, that is, preamble 1.
  • an application example is provided.
  • this application example it is assumed that there are 64 preambles with indexes of 0, 1, ..., 63 respectively, and these 64 preambles can be used for two-step random access.
  • the UE obtains the preamble to be used, which is assumed to be preamble 1.
  • the UE also obtains the association relationship between the preamble and the payload transmission resource.
  • the payload transmission resource is used to transmit the payload.
  • the indexes are 0, 1,..., 7, and every 8 preambles are associated with an RU. In other words, there is an association relationship between all preambles and payload transmission resources.
  • the UE determines the content to be transmitted according to the preamble to be used and the obtained association relationship between the preamble and the payload transmission resource. Specifically, the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the payload transmission resource. If so, the UE determines that the content to be transmitted is msgA. Among them, msgA includes the preamble and payload to be used, or msgA includes the payload. Otherwise, the UE determines that the content it will transmit is the preamble to be used.
  • the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the payload transmission resource, including the following methods, for example:
  • Method 1 The UE determines whether the preamble to be used belongs to one of the designated preambles in the preamble associated with one payload transmission resource according to the association relationship between the preamble and the payload transmission resource. If it is, the first preset rule is satisfied, and the UE determines that the content to be transmitted is msgA. Otherwise, the first preset rule is not satisfied, and the UE determines that the content to be transmitted is the preamble to be used.
  • the UE determines that the content to be transmitted is msgA.
  • the UE determines that the content it will transmit is the preamble to be used, that is, preamble 1.
  • Manner 2 The UE obtains the second preamble set according to the association relationship between the preamble and the payload transmission resource, and if the preamble to be used is included in the second preamble set, the first preset rule is satisfied. The UE determines that the content to be transmitted is msgA. Otherwise, the first preset rule is not satisfied. The UE determines that the content it will transmit is the preamble to be used.
  • the UE obtains the first two preambles among the eight preambles associated with each RU, uses these two preambles as the preambles in the second preamble set, and finally obtains the second preamble Set, ie ⁇ leading 0, leading 1, leading 8, leading 9,..., leading 56, leading 57 ⁇ . It can be seen that preamble 1 is included in the second preamble set. Therefore, the UE determines that the content it will transmit is msgA.
  • the UE obtains the first preamble among the eight preambles associated with each RU, and uses this preamble as the preamble in the second preamble set to obtain the second preamble set. That is ⁇ leading 0, leading 8,..., leading 56 ⁇ . It can be seen that preamble 1 is not included in the second preamble set. Therefore, the UE determines that the content it will transmit is the preamble to be used, that is, preamble 1.
  • the UE sends the content to be transmitted.
  • Embodiment 2 Based on Embodiment 2, another application example is provided. In this application example, it is assumed that there are 64 preambles with indexes of 0, 1, ..., 63 respectively, and these 64 preambles can be used for two-step random access.
  • the UE obtains the preamble to be used, which is assumed to be preamble 1.
  • the UE also obtains the association relationship between the preamble and the payload transmission resource.
  • the preamble As shown in FIG. 15, it is assumed that there are 8 transmission resource units RU that can be used to transmit the payload, and the indexes are 0, 1, ..., 7, respectively.
  • Two preambles are respectively associated with one RU, for example, preamble 0 and preamble 1 are associated with RU 0, and others are similar. In other words, among all the preambles, there is an association relationship between a part of the preambles and payload transmission resources.
  • the UE determines the content to be transmitted according to the preamble to be used and the obtained association relationship between the preamble and the payload transmission resource.
  • the UE determines whether there is an association relationship between the preamble to be used and at least one payload transmission resource according to the association relationship between the preamble and the payload transmission resource. If so, the UE determines that the content to be transmitted is msgA. Otherwise, the UE determines that the content it will transmit is the preamble to be used.
  • the preamble 1 is associated with RU 0. Therefore, the UE determines that the content it will transmit is msgA.
  • the UE sends the content to be transmitted.
  • the UE determines that it will transmit The content is the preamble to be used, that is, the preamble 7.
  • the association relationship between the preamble and the payload transmission resource may be semi-statically configured or semi-statically changed.
  • the association relationship between the preamble and the payload transmission resource may also be: 1 preamble is associated with one RU, for example, preamble 0 is associated with RU 0, preamble 8 is associated with RU 1, and preamble 16 is associated with RU 2,..., The preamble 56 is associated with RU 7.
  • the UE determines that the content it will transmit is the preamble to be used, that is, preamble 1.
  • an application example is provided.
  • this application example it is assumed that there are 64 preambles with indexes of 0, 1, ..., 63 respectively, and these 64 preambles can be used for two-step random access.
  • the UE obtains the preamble to be used.
  • the UE also obtains the association relationship between the preamble transmission resource and the payload transmission resource.
  • the preamble transmission resource includes 8 RACH occasions (RO), and the indexes are 0, 1, ..., 7, respectively.
  • the payload transmission resource includes 4 PUSCH occurrences (PO), the indexes are 0, 1, 2, and 3 respectively. And, every 2 ROs are associated with one PO. In other words, there is a many-to-one relationship between preamble transmission resources and payload transmission resources.
  • the UE determines the content to be transmitted according to the preamble to be used and the obtained association relationship between the preamble transmission resource and the payload transmission resource. Specifically, the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble transmission resource and the payload transmission resource. If so, the UE determines that the content to be transmitted is msgA. Among them, msgA includes the preamble and payload to be used, or msgA includes the payload. Otherwise, the UE determines that the content it will transmit is the preamble to be used.
  • the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble transmission resource and the payload transmission resource, including the following methods, for example:
  • Manner 1 The UE determines whether the remainder of the preamble to be used for the first specified value is equal to the second specified value according to the association relationship between the preamble transmission resource and the payload transmission resource. If it is, the first preset rule is satisfied. The UE determines that the content to be transmitted is msgA. Otherwise, the first preset rule is not satisfied, and the UE determines that the content to be transmitted is the preamble to be used.
  • the specified value X may also be determined according to the code rate or MCS used in the payload transmission.
  • the value of X may be different.
  • Method 2 The UE determines whether the ratio of the preamble to the number of preambles to be used is within the specified value range according to the association relationship between the preamble transmission resource and the payload transmission resource. If it is, the first preset rule is satisfied, and the UE determines that the content to be transmitted is msgA. Otherwise, the first preset rule is not satisfied, and the UE determines that the content to be transmitted is the preamble to be used.
  • the specified value range can be determined according to Y. Since there are two preamble transmission resources associated with one payload transmission resource, for these two preamble transmission resources, the specified value range may be 0-1/16 and 1/16-2/16, respectively.
  • the specified value range may also be preset and changeable. For different preamble transmission resources, the specified value range may be different.
  • the specified value range may also be determined according to the code rate or MCS used in the payload transmission. For different code rates or MCS, the specified value range may be different. Further, it is determined whether the ratio of the index of the preamble to be used to the number of preambles is within the specified value range. If it is assumed that the index of the preamble to be used is 2, and the preamble to be used will be transmitted through RO 0 associated with PO 0, then it can be seen that the ratio of 2 to 64 is in the range of 0 to 1/16, which is considered to be satisfied The first preset rule. Then, the UE determines that the content to be transmitted is msgA.
  • the UE determines that the content it will transmit is the preamble to be used, that is, preamble 8.
  • Manner 3 The UE obtains the third preamble set according to the association relationship between the preamble transmission resource and the payload transmission resource. If the preamble to be used is included in the third preamble set, the first preset rule is satisfied, and the UE determines that the content to be transmitted is msgA. Otherwise, the first preset rule is not satisfied, and the UE determines that the content to be transmitted is the preamble to be used.
  • the value of Z can be 0 and 1, respectively.
  • the obtained third preamble set is ⁇ preamble 0, preamble 16, preamble 32, preamble 48 ⁇ .
  • the UE determines that the content to be transmitted is msgA . If it is assumed that the index of the preamble to be used is 5, which is not included in the third preamble set, then the UE determines that the content to be transmitted is the preamble to be used, that is, preamble 5.
  • the UE determines that the content to be transmitted is msgA . If it is assumed that the index of the preamble to be used is 8, which is not included in the third preamble set, then the UE determines that the content to be transmitted is the preamble to be used, that is, the preamble 8.
  • the UE sends the content to be transmitted.
  • an application example is provided.
  • this application example it is assumed that there are 64 preambles with indexes of 0, 1, ..., 63 respectively, and these 64 preambles can be used for two-step random access.
  • the UE obtains the preamble to be used.
  • the UE also obtains the association relationship between the preamble transmission resource and the payload transmission resource; as shown in FIG. 17, the preamble transmission resource includes 8 RACH occasions (RO), and the indexes are 0, 1, ..., 7, respectively.
  • the payload transmission resource includes 4 PUSCH occurrences (PO), the indexes are 0, 1, 2, and 3 respectively.
  • RO0, RO1, RO2, RO3 and PO0, PO1, PO2, and PO3 there is no relationship between other ROs and any PO. It can be considered that RO 0, RO 1, RO 2, and RO 3 are preamble transmission resources that can be used for two-step random access, and other ROs are used for four-step random access.
  • the UE determines the content to be transmitted according to the preamble to be used and the obtained association relationship between the preamble transmission resource and the payload transmission resource. Specifically, the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble transmission resource and the payload transmission resource. If so, the UE determines that the content to be transmitted is msgA. Among them, msgA includes the preamble and payload to be used, or msgA includes the payload. Otherwise, the UE determines that the content it will transmit is the preamble to be used.
  • the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble transmission resource and the payload transmission resource, including the following methods, for example:
  • Manner 1 The UE determines whether the remainder of the preamble to be used for the first specified value is equal to the second specified value according to the association relationship between the preamble transmission resource and the payload transmission resource. If it is, the first preset rule is satisfied, and the UE determines that the content to be transmitted is msgA. Otherwise, the first preset rule is not satisfied, and the UE determines that the content to be transmitted is the preamble to be used.
  • the preamble index takes the remainder of the specified value X as Z, where the specified value X is determined according to the association relationship between the preamble transmission resource and the payload transmission resource.
  • the value of Z can be determined according to the number of preamble transmission resources associated with one payload transmission resource. In this example, since there is one preamble transmission resource associated with one payload transmission resource, the value of Z can be zero.
  • Method 2 The UE determines whether the ratio of the preamble to the number of preambles to be used is within the specified value range according to the association relationship between the preamble transmission resource and the payload transmission resource. If it is, the first preset rule is satisfied, and the UE determines that the content to be transmitted is msgA. Otherwise, the first preset rule is not satisfied, and the UE determines that the content to be transmitted is the preamble to be used.
  • the specified value range can be determined according to Y. Since there is one preamble transmission resource associated with a payload transmission resource, the specified value range can be 0 to 1/16. Further, it is determined whether the ratio of the index of the preamble to be used to the number of preambles is within the specified value range.
  • the UE determines that the content to be transmitted is msgA. If it is assumed that the index of the preamble to be used is 8, it can be seen that the ratio of 8 to 64 is not within the range of 0 to 1/16, and the first preset rule is considered not to be satisfied, then the UE determines that the content it will transmit is the future The preamble used, that is, the preamble 8.
  • Manner 3 The UE obtains the third preamble set according to the association relationship between the preamble transmission resource and the payload transmission resource. If the preamble to be used is included in the third preamble set, the first preset rule is satisfied, and the UE determines that the content to be transmitted is msgA. Otherwise, the first preset rule is not satisfied, and the UE determines that the content to be transmitted is the preamble to be used.
  • the value of Z can be zero. Then, the obtained third preamble set is ⁇ preamble 0, preamble 16, preamble 32, preamble 48 ⁇ . Further, if it is assumed that the index of the preamble to be used is 32, which is included in the third preamble set, then the UE determines that the content to be transmitted is msgA. If it is assumed that the index of the preamble to be used is 5, which is not included in the third preamble set, then the UE determines that the content to be transmitted is the preamble to be used, that is, preamble 5.
  • preamble indexes whose ratio of the index of the available preamble to the number of preambles is in the specified value range, and use these preambles as the preambles in the third preamble set, which is similar to the foregoing description and will not be repeated.
  • the UE sends the content to be transmitted.
  • the UE is considered to support two-step random access, and according to this application example, determine whether to perform random access according to 2-step RACH. It is to determine whether the content to be transmitted is msgA or the preamble to be used. Otherwise, if the RO used by the UE is included in RO 4 to 7, the UE performs random access according to the 4-step RACH.
  • Embodiment 4 Based on Embodiment 4, an application example is provided. In this application example, it is assumed that there are 64 preambles with indexes of 0, 1, ..., 63 respectively, and these 64 preambles can be used for two-step random access.
  • the UE obtains the preamble to be used, which is assumed to be preamble 1.
  • the UE also obtains the association relationship between the preamble and the resource set, where the resource set includes a designated payload transmission resource and a designated DMRS, and the payload transmission resource is used to transmit the payload.
  • the resource set includes a designated payload transmission resource and a designated DMRS
  • the payload transmission resource is used to transmit the payload.
  • the indexes are 0, 1,..., 7, and there are 8 DMRSs on each RU
  • the indexes are 0, 1, ...,7
  • each preamble is associated with a resource set
  • a resource set includes one RU and one DMRS. It can be seen that there is an association relationship between all predecessors and resource collections.
  • the UE determines the content to be transmitted according to the preamble to be used and the obtained association relationship between the preamble and the resource set. Specifically, the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the resource set. If so, the UE determines that the content to be transmitted is msgA. Among them, msgA includes the preamble and payload to be used, or msgA includes the payload. Otherwise, the UE determines that the content it will transmit is the preamble to be used.
  • the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the resource set, including the following methods, for example:
  • Manner 1 The UE determines whether the preamble to be used belongs to one of the designated preambles associated with a resource set according to the association relationship between the preamble and the resource set. If it is, the first preset rule is satisfied, and the UE determines that the content to be transmitted is msgA. Otherwise, the first preset rule is not satisfied, and the UE determines that the content to be transmitted is the preamble to be used.
  • the first preset rule is the first preamble among the preambles associated with a resource set.
  • each preamble is associated with a resource set. Therefore, each preamble can be considered to satisfy the first preset rule , Then the UE determines that the content it will transmit is msgA.
  • Method 2 The UE obtains the fourth preamble set according to the association relationship between the preamble and the resource set. If the preamble to be used is included in the third preamble set, the first preset rule is satisfied, and the UE determines the content to be transmitted For msgA. Otherwise, the first preset rule is not satisfied, and the UE determines that the content to be transmitted is the preamble to be used.
  • the UE obtains the preambles associated with the first 2 DMRS on each RU, uses these preambles as the preambles in the fourth preamble set, and finally obtains the fourth preamble set, namely ⁇ preamble 0, Leading 1, Leading 8, Leading 9,..., Leading 56, Leading 57 ⁇ . It can be seen that preamble 1 is included in the fourth preamble set. Therefore, the UE determines that the content it will transmit is msgA.
  • the UE obtains the preamble associated with the first DMRS on each RU according to the association relationship between the preamble and the resource set, uses this preamble as the preamble in the fourth preamble set, and finally obtains the fourth preamble set, namely ⁇ preamble 0 , Leading 8,..., leading 56 ⁇ . It can be seen that preamble 1 is not included in the fourth preamble set. Therefore, the UE determines that the content it will transmit is the preamble to be used, that is, preamble 1.
  • the UE sends the content to be transmitted.
  • the association relationship between the preamble and the resource set can also be the association relationship between a part of the preamble and the resource set. Then, the UE determines whether the preamble to be used meets the first preset rule according to the association relationship between the preamble and the resource set. According to the association relationship between the preamble and the resource set, it is determined whether there is an association relationship between the preamble to be used and at least one resource set. If it is, it is considered that the first preset rule is satisfied, and the UE determines that the content to be transmitted is msgA. Otherwise, it is considered that the first preset rule is not satisfied, and the UE determines that the content to be transmitted is the preamble to be used.
  • FIG. 19 is a schematic structural diagram of a transmission device according to an embodiment of the application.
  • the device may include: a first obtaining module 1701, configured to obtain a first index; a second obtaining module 1702, configured to obtain first information; and a first determining module 1703, configured to obtain a first index according to the If the information determines that the first index satisfies the first preset rule, it is determined that the content to be transmitted includes the first message.
  • the first information includes an association relationship between an index and a DMRS
  • the first determining module is configured to determine according to the first information that the first index satisfies a first preset rule, including: The association relationship between the index and the DMRS determines that the first index belongs to one of the specified indexes in the indexes associated with a DMRS; or it is determined that the first index belongs to the first index set according to the association relationship between the index and the DMRS, Wherein, the first index set is obtained according to the association relationship between the index and the DMRS; or it is determined according to the association relationship between the index and the DMRS that the first index has an association relationship with at least one DMRS; or according to the index The association relationship with the DMRS determines that the DMRS associated with the first index is available.
  • the first index set is obtained according to the association relationship between the index and the DMRS, including: obtaining N of the M indexes associated with each DMRS in the specified DMRS according to the association relationship between the index and the DMRS Indexes, and the N indexes are used as indexes in the first index set to obtain the first index set, where M is an integer, N is an integer, and N is less than or equal to M.
  • the first information includes an association relationship between an index and a payload transmission resource
  • the first determining module is configured to determine according to the first information that the first index satisfies a first preset rule
  • the method includes: determining, according to the association relationship between the index and the payload transmission resource, that the first index belongs to one of the designated indexes in the index associated with one payload transmission resource; or according to the association relationship between the index and the payload transmission resource It is determined that the first index belongs to a second index set, wherein the second index set is obtained according to the association relationship between the index and the payload transmission resource; or is determined according to the association relationship between the index and the payload transmission resource
  • the first index has an association relationship with at least one payload transmission resource; or it is determined that the payload transmission resource associated with the first index is available according to the association relationship between the index and the payload transmission resource.
  • the second index set is obtained according to the association relationship between the index and the payload transmission resource, including: obtaining each transmission resource from the specified transmission resource according to the association relationship between the index and the payload transmission resource Among the associated P indexes, Q indexes are used as indexes in the second index set to obtain the second index set, where P is an integer, Q is an integer, and Q is less than or equal to P.
  • the first information includes an association relationship between preamble transmission resources and payload transmission resources
  • the first determining module is configured to determine, according to the first information, that the first index satisfies a first preset
  • the rule includes: determining, according to the association relationship between the preamble transmission resource and the payload transmission resource, that the remainder of the first index to the first specified value is equal to the second specified value; or according to the relationship between the preamble transmission resource and the payload transmission resource
  • the association relationship determines that the ratio of the first index to the number of indexes is within a specified value range; or it is determined that the first index belongs to the third index set according to the association relationship between the preamble transmission resource and the payload transmission resource, and
  • the third index set is obtained according to the association relationship between the preamble transmission resource and the payload transmission resource; or the payload transmission associated with the first preamble transmission resource is determined according to the association relationship between the preamble transmission resource and the payload transmission resource Resources are available, wherein the first preamble transmission resource is
  • the first specified value is determined according to the association relationship between the preamble transmission resource and the payload transmission resource, or is preset, or determined according to the code rate or MCS used for payload transmission.
  • the second designated value may be 0, or a preamble transmission resource index, or determined according to the number or index of preamble transmission resources associated with one payload transmission resource.
  • the specified value range is determined according to the association relationship between the preamble transmission resource and the payload transmission resource, or is preset, or is determined according to the code rate or MCS used for payload transmission.
  • the third index set is obtained according to the association relationship between the preamble transmission resource and the payload transmission resource, including: obtaining the association relationship with each payload transmission resource according to the association relationship between the preamble transmission resource and the payload transmission resource.
  • the preamble transmission resources of, and the available indexes, the specified index in the available indexes is used as the index in the third index set to obtain the third index set.
  • the first information includes an association relationship between an index, a payload transmission resource, and a DMRS
  • the first determining module is configured to determine, according to the first information, that the first index satisfies a first preset
  • the rule includes: determining that the first index belongs to one of the specified indexes in the index associated with a resource set according to the association relationship between the index and the payload transmission resource and the DMRS; or according to the index and the payload transmission resource and
  • the association relationship of the DMRS determines that the first index belongs to a fourth index set, where the fourth index set is obtained according to the association relationship between the index and the payload transmission resource and the DMRS; or according to the index and the payload
  • the association relationship between the transmission resources and the DMRS determines that the first index has an association relationship with at least one resource set; or it is determined that the resource set associated with the first index is available according to the association relationship between the index and the payload transmission resource and the DMRS ⁇ ;
  • the resource set consists of
  • the fourth index set is obtained according to the association relationship between the index and the payload transmission resource and the DMRS, including: obtaining information from the specified resource set according to the association relationship between the index and the payload transmission resource and the DMRS Among the S indexes associated with each resource set, the T indexes are used as the indexes in the fourth index set to obtain the fourth index set, wherein the resource set is specified by The payload transmission resource and the designated DMRS form, S is an integer, T is an integer, and T is less than or equal to S.
  • the first information includes a fifth index set
  • the first determining module is configured to determine according to the first information that the first index satisfies a first preset rule, including: according to the The fifth index set determines that the first index belongs to the fifth index set.
  • the device further includes: a second determining module 1704, configured to determine, according to the first information, that the first index does not meet the first preset rule, and then determine that the transmission is to be performed.
  • the content is the sequence indicated by the first index.
  • the first message includes: a sequence and a payload indicated by the first index, or the payload.
  • the device further includes: a transmission module 1705, configured to transmit the content to be transmitted.
  • FIG. 21 is a schematic structural diagram of a transmission device according to an embodiment of the application.
  • the device may include: a detection module 1901, which is used to perform sequence detection and obtain the detected sequence; a third acquisition module 1902, which is used to obtain first information; and a third determination module 1903, which is used to If the first information determines that the detected sequence meets the first preset rule, it is determined that the detected transmission content to be received includes a payload.
  • the first information includes at least one of the following: an association relationship between an index and DMRS; an association relationship between an index and a payload transmission resource; an association relationship between a preamble transmission resource and a payload transmission resource; an index and validity The association between the load transmission resources and DMRS; index collection.
  • FIG. 22 is a schematic structural diagram of a terminal according to an embodiment of this application.
  • a terminal 130 provided in an embodiment of this application includes a memory 1303 and a processor 1304.
  • the terminal 130 may also include an interface 1301 and a bus 1302.
  • the interface 1301, the memory 1303 and the processor 1304 are connected through a bus 1302.
  • the memory 1303 is used to store instructions.
  • the processor 1304 is configured to read the instructions to execute the technical solutions of the foregoing method embodiments applied to the terminal. The implementation principles and technical effects are similar, and will not be repeated here.
  • FIG. 23 is a schematic structural diagram of a base station according to an embodiment of this application.
  • a base station 140 provided in an embodiment of this application includes a memory 1403 and a processor 1404.
  • the base station may further include an interface 1401 and a bus 1402.
  • the interface 1401, the memory 1403 and the processor 1404 are connected through a bus 1402.
  • the memory 1403 is used to store instructions.
  • the processor 1404 is configured to read the instructions to execute the technical solutions of the foregoing method embodiments applied to the base station. The implementation principles and technical effects are similar, and details are not described herein again.
  • FIG. 24 is a schematic structural diagram of a communication system according to an embodiment of the application.
  • the system includes: a terminal 130 according to the above embodiment and a base station 140 according to the above embodiment.
  • the communication system of the embodiment of the application includes, but is not limited to: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), general Mobile communication system (Universal Mobile Telecommunication System, UMTS), or 5G system, etc.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • 5G system etc.
  • the various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
  • Computer program instructions can be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code written in any combination of one or more programming languages or Target code.
  • ISA instruction set architecture
  • the block diagram of any logical flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
  • the computer program can be stored on the memory.
  • the memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory, etc.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM can include many forms, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronization Dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) and direct memory bus random access Memory (Direct Rambus RAM, DR RAM).
  • Static RAM, SRAM static random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory Synchronous DRAM, SDRAM
  • Double data rate synchronization Dynamic random access memory Double Data Rate SDRAM, DDR SDRAM
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • Synchlink DRAM, SLDRAM synchronous connection dynamic random access memory
  • Direct Rambus RAM Direct Rambus RAM
  • the processor of the embodiment of the present application may be of any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processors, DSP), and application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (FGPA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or processors based on multi-core processor architecture.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the foregoing processor may implement or execute the steps of each method disclosed in the embodiments of the present application.
  • the software module may be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

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Abstract

本申请提出传输方法、装置、终端、基站、通信系统及存储介质。其中，该方法包括：获取第一索引；获取第一信息；根据所述第一信息确定所述第一索引满足第一预设规则，则确定将要传输的内容包括第一消息。

Description

传输方法、装置、终端、基站、通信系统及存储介质
本申请要求在2019年03月29日提交中国专利局、申请号为201910251605.0的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，例如涉及传输方法、装置、终端、基站、通信系统及存储介质。
背景技术
相关技术中，例如，长期演进(Long Term Evolution，LTE)通信系统，或者，新型无线电接入技术(New Radio Access Technology，New RAT或NR)通信系统中，当终端或用户设备(User Equipment，UE)需要接收下行数据时，需要进行小区搜索过程，与小区取得下行同步。同理，当UE需要进行上行传输时，需要与小区取得上行同步。UE完成上下行同步后，进入无线资源控制(Radio Resource Control，RRC)连接状态，与基站(Base Station，BS)之间建立了无线连接，从而可以进行上下行数据的发送与接收。其中，UE通过随机接入过程与小区建立连接，取得上行同步，并获取唯一的网络识别符。LTE系统中的基站通常称为演进型节点B(evolved Node B,eNB)，NR系统中的基站通常称为面向NR用户的下一代节点B(next generation Node B，gNB)。
随机接入过程包括基于竞争的随机接入和基于非竞争的随机接入。基于竞争的随机接入可以包括四步随机接入(4-step RACH)和两步随机接入(2-step RACH)。在两步随机接入中，可以将四步随机接入的第一步的前导(Preamble)和第三步的有效载荷(Payload)通过一个消息(msgA)发送。
在两步随机接入中，当一个UE发送的msgA传输失败或者没有被基站成功接收时，UE进行回退(fall back)，按照四步随机接入过程进行随机接入。UE从两步随机接入回退到四步随机接入，会导致传输资源浪费。当进行回退的UE数量很多时，会导致大量传输资源浪费，会影响系统接入效率和传输性能。
发明内容
为了解决上述至少一个技术问题，本申请实施例提供了以下方案。
本申请实施例提供了一种传输方法，包括：
获取第一索引；
获取第一信息；
根据所述第一信息确定所述第一索引满足第一预设规则，则确定将要传输的内容包括第一消息。
本申请实施例提供了一种传输方法，包括：
进行序列检测，获取检测到的序列；
获取第一信息；
根据所述第一信息确定所述检测到的序列满足第一预设规则，则确定将要接收检测的传输内容包括有效载荷。
本申请实施例提供了一种传输装置，包括：
第一获取模块，用于获取第一索引；
第二获取模块，用于获取第一信息；
第一确定模块，用于根据所述第一信息确定所述第一索引满足第一预设规则，则确定将要传输的内容包括第一消息。
本申请实施例提供了一种传输装置，包括：
检测模块，用于进行序列检测，获取检测到的序列；
第三获取模块，用于获取第一信息；
第三确定模块，用于根据所述第一信息确定所述检测到的序列满足第一预设规则，则确定将要接收检测的传输内容包括有效载荷。
本申请实施例提供了一种终端，所述终端包括：处理器及存储器；
所述存储器用于存储指令；
所述处理器被配置为读取所述指令以执行本申请实施例应用于终端的方法。
本申请实施例提供了一种基站，所述基站包括：处理器及存储器；
所述存储器用于存储指令；
所述处理器被配置为读取所述指令以执行本申请实施例应用于基站的方法。
本申请实施例提供了一种通信系统，所述系统包括本申请实施例提供的终端及本申请实施例提供的的基站。
本申请实施例提供了一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现本申请实施例提供的任一项所述的方法。
本申请实施例根据第一信息确定第一索引满足第一预设规则，则确定将要传输的内容包括第一消息，能够控制第一消息的传输，从而可以减轻传输资源碰撞，减轻传输资源浪费，提高系统接入效率和传输性能。
附图说明
图1为四步随机接入的流程示意图。
图2为两步随机接入的流程示意图。
图3为本申请一实施例的传输方法的流程示意图。
图4为本申请另一实施例的传输方法的流程示意图。
图5为本申请另一实施例的传输方法的流程示意图。
图6为本申请一实施例的随机接入方法的流程示意图。
图7为本申请另一实施例的随机接入方法的流程示意图。
图8为本申请另一实施例的随机接入方法的流程示意图。
图9为本申请另一实施例的随机接入方法的流程示意图。
图10为本申请另一实施例的随机接入方法的流程示意图。
图11为本申请另一实施例的随机接入方法的流程示意图。
图12为本申请另一实施例的随机接入方法的应用示例的示意图。
图13为本申请另一实施例的随机接入方法的应用示例的示意图。
图14为本申请另一实施例的随机接入方法的应用示例的示意图。
图15为本申请另一实施例的随机接入方法的应用示例的示意图。
图16为本申请另一实施例的随机接入方法的应用示例的示意图。
图17为本申请另一实施例的随机接入方法的应用示例的示意图。
图18为本申请另一实施例的随机接入方法的应用示例的示意图。
图19为本申请一实施例的传输装置的结构示意图。
图20为本申请另一实施例的传输装置的结构示意图。
图21为本申请另一实施例的传输装置的结构示意图。
图22为本申请实施例的终端的结构示意图。
图23为本申请实施例的基站的结构示意图。
图24为本申请实施例的通信系统的结构示意图。
具体实施方式
下文中将结合附图对本申请的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
如图1所示，基于竞争的随机接入过程可以包括四个步骤：
步骤S11，UE发送前导(Preamble)。具体地，UE获取前导序列，通过物理随机接入信道(Physical Random Access Channel，PRACH)发送给基站。这样，可以告诉基站有一个随机接入请求，同时使得基站可以估计其与UE之间的传输时延，以便校准上行定时。该步骤中的前导还可以称为消息1(msg1)。
步骤S12，基站发送随机接入响应(Random Access Response，RAR)，RAR中携带有定时调整信息、上行调度或授权信息以及临时的网络识别符等。UE发送了前导之后，会在一个RAR时间窗内接收RAR。如果在此时间窗内没有接收到基站回复的RAR，则认为本次随机接入过程失败。该步骤中的RAR还可以称为消息2(msg2)。
步骤S13，UE发送消息3(msg3)，具体地，UE根据从RAR中接收到的信息在物理上行共享信道(Physical Uplink Sharing Channel，PUSCH)上发送msg3。msg3中包含一个重要信息，即UE唯一的标识信息，该标识信息用于在步骤S14中的冲突解决。
步骤S14，基站发送竞争解决消息，该消息还可以称为消息4(msg4)。该步骤中，基站会在msg4中携带UE唯一的标识信息来指定在冲突解决中胜出的UE。而其他没有在冲突解决中胜出的UE将重新发起随机接入。
对于基于非竞争的随机接入，UE发送的前导是其专用的，不存在冲突。并且UE已经拥有了接入小区内唯一的网络标识符，不再需要基站为其分配。因此，基于非竞争的随机接入过程无需执行步骤S13和步骤S14。
上述包括四个步骤的随机接入过程还可以简称为四步随机接入(4-step RACH)。为了简化接入流程、降低接入时延，可以将四步随机接入简化为两步随机接入(2-step RACH)。
如图2所示，两步随机接入过程包括两个步骤：
步骤S21，UE发送消息A(msgA)。该消息包括两个部分，分别是Preamble和有效载荷(Payload)。该有效载荷可以通过物理上行共享信道(Physical Uplink Shared Channel，PUSCH)发送，用来承载UE发送的上行信息。有效载荷中可以包括与四步随机接入的步骤S13中的msg3类似的内容以及业务数据等。
步骤S22，基站发送消息B(msgB)，该消息用来实现与四步随机接入中 步骤S12、步骤S14类似的功能，例如定时调整、冲突解决等。
在两步随机接入中，当一个UE发送的msgA传输失败或者没有被基站成功接收时，可能是Preamble和Payload均传输失败，也可能是Preamble传输成功而Payload传输失败。其中，Payload传输失败可能是由于该UE使用的资源(例如PUSCH资源、DMRS等)与其他UE使用的资源相同导致的，也就是资源碰撞导致的。对于这种情况，UE可以进行回退(fall back)，按照四步随机接入过程进行随机接入。当Preamble和Payload均传输失败时，UE可以直接按照上述四个步骤重新进行随机接入。当Preamble传输成功而Payload传输失败时，由于基站检测到了Preamble而没有接收到Payload，那么，基站可以认为UE仅发送了Preamble，也就是四步随机接入的步骤S11，然后基站向UE发送RAR，从而实现了回退，后续步骤与上述四步随机接入相同。
UE从两步随机接入回退到四步随机接入，会造成该UE通过PUSCH进行的Payload传输是浪费的或不必要的，也就是说，会导致传输资源浪费。另外，还会引入干扰。当进行回退的UE数量很多时，会导致大量传输资源浪费，会影响系统接入效率和传输性能。
图3为本申请一实施例的传输方法的流程示意图，如图3所示，该方法可以包括：
步骤S31、获取第一索引。
步骤S32、获取第一信息。
步骤S33、根据所述第一信息确定所述第一索引满足第一预设规则，则确定将要传输的内容包括第一消息。
在一种实施方式中，所述第一索引可以为序列的索引，例如前导序列的索引、导频序列的索引等；所述第一索引还可以为逻辑索引，没有具体的物理含义，或者，还可以为根据指定信息得到的索引。
在一种实施方式中，所述第一索引可以是通过随机生成或随机选择的方式获取的，或者根据系统配置获取的，或者根据指定信息进行处理得到的。
在一种实施方式中，所述第一消息包括：所述第一索引指示的序列和有效载荷，或者，所述有效载荷。例如，在随机接入过程中，第一索引可以为前导序列的索引，第一消息可以为前述两步随机接入中的消息A(msgA)，也就是包括第一索引指示的前导序列和有效载荷。第一索引还可以为逻辑索引，或者根据指定信息得到的索引，第一消息可以包括有效载荷。
在一种实施方式中，如图4所示，该方法还包括：
步骤S34、根据所述第一信息确定所述第一索引不满足第一预设规则，则确定将要传输的内容为所述第一索引指示的序列。
在一种实施方式中，如图4所示，该方法还包括：
步骤S35、传输所述将要传输的内容。
在本申请实施例中，在步骤S32、步骤S34中，在根据所述第一信息确定所述第一索引是否满足第一预设规则时，除了可以针对所述第一索引来确定是否满足第一预设规则，还可以针对与所述第一索引关联的信息来确定是否满足第一预设规则。
在本申请实施例中，在步骤S32获取的第一信息可以包括多种类型，对于不同类型的第一信息可以设置不同的第一预设规则。相应地，步骤S33根据所述第一信息确定所述第一索引满足第一预设规则，包括不同的情况，以下分别进行说明。
情况一：第一信息包括索引与解调参考信号(Demodulation Reference Signal，DMRS)的关联关系。
其中，所述索引可以为序列的索引，例如前导序列的索引、导频序列的索引等；所述索引还可以为逻辑索引，没有具体的物理含义；或者，所述索引还可以为根据指定信息得到的索引等。
其中，所述DMRS包括DMRS时频资源或时频位置、DMRS索引、DMRS端口等。
其中，索引与DMRS的关联关系可以包括：所有索引与DMRS的关联关系；或者，一部分索引与DMRS的关联关系。例如，在随机接入中，索引可以为前导序列的索引，那么，索引与DMRS的关联关系具体可以包括：所有前导与DMRS的关联关系；或者，一部分前导与DMRS的关联关系。
在这种情况下，步骤S33中，根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述索引与DMRS的关联关系确定所述第一索引属于与一个DMRS关联的索引中的指定索引之一；或者根据所述索引与DMRS的关联关系确定所述第一索引属于第一索引集合，其中，所述第一索引集合是根据所述索引与DMRS的关联关系获取的；或者根据所述索引与DMRS的关联关系确定所述第一索引与至少一个DMRS存在关联关系；或者根据所述索引与DMRS的关联关系确定与所述第一索引关联的DMRS是可用的。
在一种示例中，所述第一索引集合是根据所述索引与DMRS的关联关系获取的，包括：根据所述索引与DMRS的关联关系，获取与指定DMRS中的每个DMRS关联的M个索引中的N个索引，将所述N个索引作为所述第一索引集 合中的索引，得到所述第一索引集合，其中，M为整数，N为整数，N小于或等于M。
在一种示例中，根据所述索引与DMRS的关联关系确定与所述第一索引关联的DMRS是可用的，以及确定用于传输所述第一索引指示的序列的传输资源是可用的。
在一种示例中，根据所述索引与DMRS的关联关系确定与所述第一索引关联的DMRS是可用的，可以结合DMRS是否可用的信息、或DMRS所在时频资源是否可用的信息来实施。
情况二：第一信息包括索引与有效载荷传输资源的关联关系。
其中，索引与有效载荷传输资源的关联关系，可以包括：所有索引与有效载荷传输资源的关联关系；或者，一部分索引与有效载荷传输资源的关联关系。例如，在随机接入中，索引可以为前导序列的索引，那么，索引与有效载荷传输资源的关联关系具体可以包括：所有前导与有效载荷传输资源的关联关系；或者，一部分前导与有效载荷传输资源的关联关系。
在这种情况下，步骤S33中，根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述索引与有效载荷传输资源的关联关系确定所述第一索引属于与一个有效载荷传输资源关联的索引中的指定索引之一；或者根据所述索引与有效载荷传输资源的关联关系确定所述第一索引属于第二索引集合，其中，所述第二索引集合是根据所述索引与有效载荷传输资源的关联关系获取的；或者根据所述索引与有效载荷传输资源的关联关系确定所述第一索引与至少一个有效载荷传输资源存在关联关系；或者根据所述索引与有效载荷传输资源的关联关系确定与所述第一索引关联的有效载荷传输资源是可用的。
在一种示例中，所述第二索引集合是根据所述索引与有效载荷传输资源的关联关系获取的，包括：根据所述索引与有效载荷传输资源的关联关系，获取与指定传输资源中的每个传输资源关联的P个索引中的Q个索引，将所述Q个索引作为所述第二索引集合中的索引，得到所述第二索引集合，其中，P为整数，Q为整数，Q小于或等于P。
在一种示例中，根据所述索引与有效载荷传输资源的关联关系确定与所述第一索引关联的有效载荷传输资源是可用的，以及确定用于传输所述第一索引指示的序列的传输资源是可用的。
在一种示例中，根据所述索引与有效载荷传输资源的关联关系确定与所述第一索引关联的有效载荷传输资源是可用的，可以结合有效载荷传输资源是否可用的信息来实施。
情况三：第一信息包括前导传输资源与有效载荷传输资源的关联关系。
在这种情况下，步骤S33中，根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引对第一指定值取余数等于第二指定值；或者根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引与索引数量之比位于指定取值范围内；或者根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引属于第三索引集合，其中，所述第三索引集合是根据所述前导传输资源与有效载荷传输资源的关联关系获取的；或者根据所述前导传输资源与有效载荷传输资源的关联关系确定与第一前导传输资源关联的有效载荷传输资源是可用的，其中，所述第一前导传输资源用于传输所述第一索引指示的序列。
在一种示例中，所述第一指定值是根据前导传输资源与有效载荷传输资源的关联关系确定的，或者是预设的，或者是根据有效载荷传输采用的码率或调制编码方案(Modulation and Coding Scheme，MCS)确定的。
在一种示例中，所述第二指定值可以为0、或前导传输资源索引、或根据与一个有效载荷传输资源关联的前导传输资源的数量或索引确定。
在一种示例中，所述指定取值范围是根据前导传输资源与有效载荷传输资源的关联关系确定的，或者是预设的，或者是根据有效载荷传输采用的码率或MCS确定的。
在一种示例中，所述第三索引集合是根据所述前导传输资源与有效载荷传输资源的关联关系获取的，包括：根据所述前导传输资源与有效载荷传输资源的关联关系，得到与每个有效载荷传输资源关联的前导传输资源，以及可用的索引，将所述可用的索引中的指定索引作为所述第三索引集合中的索引，得到第三索引集合。
在一种示例中，根据所述前导传输资源与有效载荷传输资源的关联关系确定与第一前导传输资源关联的有效载荷传输资源是可用的，以及确定所述第一前导传输资源是可用的。
在一种示例中，根据所述前导传输资源与有效载荷传输资源的关联关系确定与第一前导传输资源关联的有效载荷传输资源是可用的，可以结合有效载荷传输资源是否可用的信息来实施。
情况四：第一信息包括索引与有效载荷传输资源以及DMRS的关联关系。
其中，索引与有效载荷传输资源以及DMRS的关联关系，可以包括：所有索引与有效载荷传输资源以及DMRS的关联关系；或者，一部分索引与有效载 荷传输资源以及DMRS的关联关系。例如，在随机接入中，索引可以为前导序列的索引，那么，索引与有效载荷传输资源以及DMRS的关联关系具体可以包括：所有前导与有效载荷传输资源以及DMRS的关联关系；或者，一部分前导与有效载荷传输资源以及DMRS的关联关系。
在这种情况下，步骤S33中，根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索引属于与一个资源集合关联的索引中的指定索引之一；或者根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索引属于第四索引集合，其中，所述第四索引集合是根据所述索引与有效载荷传输资源以及DMRS的关联关系获取的；或者根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索引与至少一个资源集合存在关联关系；或者，根据所述索引与有效载荷传输资源以及DMRS的关联关系确定与所述第一索引关联的资源集合是可用的；其中，所述资源集合由指定的有效载荷传输资源和指定的DMRS构成。
在一种示例中，所述第四索引集合是根据所述索引与有效载荷传输资源以及DMRS的关联关系获取的，包括：根据所述索引与有效载荷传输资源以及DMRS的关联关系，获取与指定资源集合中的每个资源集合关联的S个索引中的T个索引，将所述T个索引作为所述第四索引集合中的索引，得到所述第四索引集合，其中，所述资源集合由指定的有效载荷传输资源和指定的DMRS构成，S为整数，T为整数，T小于或等于S。
在一种示例中，根据所述索引与有效载荷传输资源以及DMRS的关联关系确定与所述第一索引关联的资源集合是可用的，以及确定用于传输所述第一索引指示的序列的传输资源是可用的。
在一种示例中，根据所述索引与有效载荷传输资源以及DMRS的关联关系确定与所述第一索引关联的资源集合是可用的，可以结合资源集合是否可用的信息来实施。
情况五：第一信息包括第五索引集合。
其中，所述第五索引集合可以包括序列索引集合或逻辑索引集合，可以是系统半静态配置的或者系统广播配置的。例如，系统可以半静态配置或广播配置该索引集合的最小索引值和/或最大索引值，以便节省信令开销。
在这种情况下，步骤S33中，根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述第五索引集合确定所述第一索引属于所述第五索引集合。
在一种示例中，所述第一信息包括：用于指示传输内容的指示信息。
其中，所述传输内容包括：所述第一索引指示的序列和有效载荷，或者，所述有效载荷，或者，所述第一索引指示的序列，或者，不传输任何内容。
当所述第一信息包括用于指示传输内容的指示信息时，可以根据该指示信息来确定将要传输的内容，可以不再执行根据所述第一信息判断所述第一索引是否满足第一预设规则的步骤。
本申请实施例中，根据第一信息确定第一索引满足第一预设规则，则确定将要传输的内容包括第一消息，能够控制第一消息的传输，从而可以减轻传输资源碰撞，减轻传输资源浪费，提高系统接入效率和传输性能。
进一步地，在随机接入过程中，能够根据两步随机接入中的PUSCH碰撞情况来控制UE是否采用两步随机接入，从而可以减轻通过PUSCH发送有效载荷时的碰撞情况，可以减轻PUSCH传输失败导致的传输资源浪费问题，可以改善有效载荷传输性能以及系统接入效率和传输性能。
图5为本申请另一实施例的传输方法的流程示意图，如图5所示，该方法可以包括：
步骤S51、进行序列检测，获取检测到的序列。
步骤S52、获取第一信息。
步骤S53、根据所述第一信息确定所述检测到的序列满足第一预设规则，则确定将要接收检测的传输内容包括有效载荷。
在一种实施方式中，所述第一信息包括以下至少一种：
索引与DMRS的关联关系；索引与有效载荷传输资源的关联关系；前导传输资源与有效载荷传输资源的关联关系；索引与有效载荷传输资源以及DMRS的关联关系；索引集合。
在一种实施方式中，所述第一信息包括：用于指示传输内容的指示信息。其中，所述传输内容包括：序列和有效载荷，或者，所述有效载荷，或者，所述序列，或者，不传输任何内容。当所述第一信息包括用于指示传输内容的指示信息时，可以根据该指示信息来确定将要接收检测的传输内容，可以不再执行根据所述第一信息判断所述检测到的序列是否满足第一预设规则的步骤。
在一种示例中，确定将要接收检测的传输内容包括有效载荷之后，该方法还需要对有效载荷进行接收检测。
在一种示例中，根据所述第一信息确定所述检测到的序列不满足第一预设规则，则该方法无需进行其他检测。
在本实施例中，根据所述第一信息确定所述检测到的序列满足第一预设规则的具体方法，与上述实施例中，根据所述第一信息确定所述第一索引满足第一预设规则，是类似的，在此不再赘述。
图6为本申请一实施例的随机接入方法的流程示意图。该方法可以应用于发射机中，包括且不限于终端、用户设备等。
如图6所示，本实施例中，第一索引为将要使用的前导(Preamble)的索引。由于前导索引代表的是一个前导，因此，在本实施例中，不再严格区分前导索引与前导，将统一使用前导进行描述。那么，该方法可以包括以下步骤：
步骤S301，获取将要使用的前导(Preamble)。
在一种示例中，获取将要使用的前导，包括：随机选择将要使用的前导，或者，根据系统配置获取将要使用的前导。
步骤S302，获取第一信息。
其中，所述第一信息可以包括：前导与DMRS的关联关系；或者，前导与有效载荷(Payload)传输资源的关联关系；或者，前导传输资源与有效载荷传输资源的关联关系；或者，前导与有效载荷传输资源以及DMRS的关联关系；或者，前导集合。
在一种示例中，前导与DMRS的关联关系包括：所有前导与DMRS的关联关系；或者，一部分前导与DMRS的关联关系。
在一种示例中，前导与有效载荷传输资源的关联关系包括：所有前导与有效载荷传输资源的关联关系；或者一部分前导与有效载荷传输资源的关联关系。
在一种示例中，前导与有效载荷传输资源以及DMRS的关联关系包括：所有前导与有效载荷传输资源以及DMRS的关联关系；或者，一部分前导与有效载荷传输资源以及DMRS的关联关系。
在本申请实施例中，有效载荷传输资源是用于传输有效载荷(Payload)的资源，或者，物理上行共享信道(PUSCH)。有效载荷传输资源至少包括时域和频域资源，例如资源块(Resource Block，RB)，符号(symbol)，时隙(slot)，子帧(subframe)，或时刻(occasion)等。
在一种示例中，有效载荷为两步随机接入(2-step RACH)中msgA中的有效载荷。
在一种示例中，有效载荷可以用来携带数据信息。
在一种示例中，所有前导包括：所有可以用于两步随机接入的前导；或者， 指定前导集合中的所有前导；或者，所有可用的前导。
在一种示例中，一部分前导包括：可以用于两步随机接入的前导中的一部分前导；或者，指定前导集合中的一部分前导；或者，所有可用的前导中的一部分前导。
在本申请实施例中，前导传输资源是用于传输前导(Preamble)的资源，或者，用于随机接入的资源，或者，物理随机接入信道(PRACH)。前导传输资源至少包括时域和频域资源，例如资源块RB，符号symbol，时隙slot，或时刻occasion等。
步骤S303，根据第一信息确定将要使用的前导满足第一预设规则，则确定将要传输的内容包括第一消息。
其中，第一消息包括所述将要使用的前导和有效载荷，例如第一消息为两步随机接入中的msgA，或者，第一消息包括有效载荷。
此外，根据所述第一信息确定所述将要使用的前导不满足第一预设规则，则可以确定将要传输的内容为所述将要使用的前导，也可以不进行后续传输。
根据第一信息的不同，确定将要传输的内容的过程可以分为以下情况。
情况一：第一信息为前导与DMRS的关联关系，那么，根据第一信息确定将要使用的前导满足第一预设规则，包括：根据所述前导与DMRS的关联关系确定所述将要使用的前导属于与一个DMRS关联的前导中的指定前导之一；或者，根据所述前导与DMRS的关联关系确定所述将要使用的前导属于第一前导集合；或者，根据所述前导与DMRS的关联关系确定所述将要使用的前导与至少一个DMRS之间存在关联关系；或者，根据所述前导与DMRS的关联关系确定与所述将要使用的前导关联的DMRS是可用的。
其中，第一前导集合是根据所述前导与DMRS的关联关系获取的，具体包括：根据所述前导与DMRS的关联关系，获取与指定DMRS中的每个DMRS关联的M个前导的N个前导，将所述N个前导作为第一前导集合中的前导，最终得到第一前导集合，其中，M为整数，N为整数，N小于或等于M。
其中，指定DMRS可以根据DMRS数量确定，或者，根据Payload传输采用的码率或MCS确定。Payload传输采用的码率或MCS与Payload大小、Payload传输资源大小有关。例如，当Payload传输采用的码率或MCS较低时，指定DMRS的数量可以多一些。可以看到，指定DMRS的数量较多时，第一前导集合中的前导数量也会较多。
其中，与每个DMRS关联的前导的数量可能是相同的，也可能是不同的。
其中，所述N的取值可以根据所述M的取值确定，或者，根据前导数量和DMRS数量确定。
其中，所述N个前导包括：所述M个前导中以指定前导为起点并以指定间隔获取的N个前导。例如：所述M个前导中的前N个前导；或者，所述M个前导中的后N个前导；或者，所述M个前导中的中间N个前导；或者，所述M个前导中的前N个具有奇数索引的前导；或者，所述M个前导中的前N个具有偶数索引的前导。
其中，根据所述前导与DMRS的关联关系确定与所述将要使用的前导关联的DMRS是可用的，可以结合DMRS是否可用的信息、或DMRS所在时频资源是否可用的信息来实施。
情况二：第一信息为前导与有效载荷传输资源的关联关系，那么，根据第一信息确定将要使用的前导满足第一预设规则，包括：根据所述前导与有效载荷传输资源的关联关系确定所述将要使用的前导属于与一个有效载荷传输资源关联的前导中的指定前导之一；或者，根据所述前导与有效载荷传输资源的关联关系确定所述将要使用的前导属于所述第二前导集合；或者，根据所述前导与有效载荷传输资源的关联关系确定所述将要使用的前导与至少一个有效载荷传输资源之间存在关联关系；或者，根据所述前导与有效载荷传输资源的关联关系确定与所述将要使用的前导关联的有效载荷传输资源是可用的。
其中，第二前导集合是根据所述前导与有效载荷传输资源的关联关系获取的，具体包括：根据所述前导与有效载荷传输资源的关联关系，获取与指定传输资源中的每个传输资源关联的P个前导的Q个前导，将所述Q个前导作为第二前导集合中的前导，最终得到第二前导集合，其中，P为整数，Q为整数，Q小于或等于P。
其中，与每个传输资源关联的前导的数量可能是相同的，也可能是不同的。
其中，所述Q的取值可以根据所述P的取值确定，或者，根据前导数量和传输资源数量确定，或者，根据Payload传输采用的码率或MCS确定。Payload传输采用的码率或MCS与Payload大小、Payload传输资源大小有关。例如，当Payload传输采用的码率或MCS较低时，Q的取值可以大一些。可以看到，Q的取值较大时，第二前导集合中的前导数量也会较多。另外，指定传输资源数量较多时，第二前导集合中的前导数量也会较多。
其中，所述Q个前导包括：所述P个前导中以指定前导为起点并以指定间隔获取的Q个前导。例如：所述P个前导中的前Q个前导；或者，所述P个前导中的后Q个前导；或者，所述P个前导中的中间Q个前导；或者，所述P个 前导中的前Q个具有奇数索引的前导；或者，所述P个前导中的前Q个具有偶数索引的前导。
其中，根据所述前导与有效载荷传输资源的关联关系确定与所述将要使用的前导关联的有效载荷传输资源是可用的，可以结合有效载荷传输资源是否可用的信息来实施。
情况三：第一信息为前导传输资源与有效载荷传输资源的关联关系，那么，根据第一信息确定将要使用的前导满足第一预设规则，包括：根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导对第一指定值取余数等于第二指定值；或者，根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导与前导数量之比位于指定取值范围内；或者，根据前导传输资源与有效载荷传输资源的关联关系确定所述将要使用的前导属于所述第三前导集合；或者，根据前导传输资源与有效载荷传输资源的关联关系确定与将要使用的前导传输资源关联的有效载荷传输资源是可用的。
其中，所述第一指定值是根据前导传输资源与有效载荷传输资源的关联关系确定的，或者是预设的，或者是根据Payload传输采用的码率或MCS确定的。Payload传输采用的码率或MCS与Payload大小、Payload传输资源大小有关。例如，当Payload传输采用的码率或MCS较低时，所述第一指定值的取值可以小一些。
其中，所述第二指定值可以为0、或前导传输资源索引、或根据与一个有效载荷传输资源关联的前导传输资源的数量或索引确定。
其中，所述指定取值范围是根据前导传输资源与有效载荷传输资源的关联关系确定的，或者是预设的，或者是根据Payload传输采用的码率或MCS确定的。Payload传输采用的码率或MCS与Payload大小、Payload传输资源大小有关。例如，当Payload传输采用的码率或MCS较低时，所述指定取值范围可以大一些。
其中，所述第三前导集合是根据前导传输资源与有效载荷传输资源的关联关系获取的，具体包括：根据前导传输资源与有效载荷传输资源的关联关系，得到与每个有效载荷传输资源关联的前导传输资源，以及可用的前导，将所述可用的前导中的指定前导作为所述第三前导集合中的前导，得到第三前导集合。
其中，所述将要使用的前导传输资源用来传输所述将要使用的前导。
其中，根据前导传输资源与有效载荷传输资源的关联关系确定与将要使用的前导传输资源关联的有效载荷传输资源是可用的，可以结合有效载荷传输资源是否可用的信息来实施。
情况四：第一信息包括前导与有效载荷传输资源以及DMRS的关联关系，根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述前导与有效载荷传输资源以及DMRS的关联关系确定所述将要使用的前导属于与一个资源集合关联的前导中的指定前导之一；或者，根据所述前导与有效载荷传输资源以及DMRS的关联关系确定所述将要使用的前导属于第四前导集合；或者，根据所述前导与有效载荷传输资源以及DMRS的关联关系确定所述将要使用的前导与至少一个资源集合存在关联关系；或者，根据所述前导与有效载荷传输资源以及DMRS的关联关系确定与所述将要使用的前导关联的资源集合是可用的。
其中，所述资源集合由指定的有效载荷传输资源和指定的DMRS构成。
其中，所述第四前导集合是根据所述前导与有效载荷传输资源以及DMRS的关联关系获取的，包括：根据所述前导与有效载荷传输资源以及DMRS的关联关系，获取与指定资源集合中的每个资源集合关联的S个前导中的T个前导，将所述T个前导作为所述第四前导集合中的前导，得到所述第四前导集合，其中，S为整数，T为整数，T小于或等于S。
其中，所述T的取值可以根据所述S的取值确定，或者，根据前导数量和资源集合数量确定，或者，根据Payload传输采用的码率或MCS确定。Payload传输采用的码率或MCS与Payload大小、Payload传输资源大小有关。例如，当Payload传输采用的码率或MCS较低时，T的取值可以大一些。可以看到，T的取值较大时，第四前导集合中的前导数量也会较多。另外，指定资源集合数量较多时，第四前导集合中的前导数量也会较多。
其中，根据所述前导与有效载荷传输资源以及DMRS的关联关系确定与所述将要使用的前导关联的资源集合是可用的，可以结合资源集合是否可用的信息来实施。
情况五：第一信息包括第五前导集合。
在这种情况下，根据所述第一信息确定所述将要使用的前导满足第一预设规则，包括：根据所述第五前导集合确定所述将要使用的前导属于所述第五前导集合。
在一种示例中，所述第一信息还包括：用于指示传输内容的指示信息。
其中，所述传输内容包括：所述将要使用的前导和有效载荷，或者，所述有效载荷，或者，所述将要使用的前导，或者，不传输任何内容。例如，在随机接入过程中，如果所述第一信息指示发送msgA，或者，所述第一信息包括发送msgA的指示信息，则确定将要传输的内容为msgA；如果没有接收到该指示 信息，则确定将要传输的内容为所述将要使用的前导。
其中，不传输任何内容，例如为空(NULL)，或者作为预留指示域。
当所述第一信息包括用于指示传输内容的指示信息时，可以根据该指示信息来确定将要传输的内容，可以不再执行根据所述第一信息判断所述将要使用的前导是否满足第一预设规则的步骤。
在一实施例中，所述方法还包括：
步骤S304，传输所述将要传输的内容。
例如，如果将要传输的内容包括将要使用的前导和有效载荷，则可以通过PRACH发送将要使用的前导，通过PUSCH发送有效载荷，或者，可以通过PUSCH发送将要使用的前导和有效载荷；如果将要传输的内容包括有效载荷，则可以通过PUSCH发送有效载荷；如果将要传输的内容为将要使用的前导，则可以通过PRACH发送将要使用的前导。
本实施例中，所述第一信息包括：由系统广播配置的信息，或者，由系统预配置的信息，或者，由系统半静态配置的信息，或者，由系统动态配置的信息，或者，由系统下行控制信息携带的信息。
本实施例中，所述前导与DMRS的关联关系可以是系统预配置的，或者系统通过信令配置的；也可以是根据前导与有效载荷传输资源的关联关系、或者前导传输资源和有效载荷传输资源的关联关系、或者前导与有效载荷传输资源和DMRS构成的资源集合的关联关系获取的。
本实施例中，所述前导与有效载荷传输资源的关联关系可以是系统预配置的，或者系统通过信令配置的；也可以是根据前导与DMRS的关联关系、或者前导传输资源和有效载荷传输资源的关联关系、或者前导与有效载荷传输资源和DMRS构成的资源集合的关联关系获取的。
本实施例中，所述前导传输资源与有效载荷传输资源的关联关系可以是系统预配置的，或者系统通过信令配置的；也可以是根据前导传输资源的数量、有效载荷传输资源的数量以及预设规则获取的，或者，根据同步信号块(Synchronization Signal Block，SSB)与前导传输资源的关联关系、同步信号块与有效载荷传输资源的关联关系等获取的。
本实施例中，所述前导与有效载荷传输资源以及DMRS的关联关系可以是系统预配置的，或者系统通过信令配置的；也可以是根据前导与DMRS的关联关系、或者前导与有效载荷传输资源的关联关系、或者前导传输资源和有效载荷传输资源的关联关系获取的。
本实施例中，前导传输资源包括时频域资源，例如：PRACH，或者，PRACH时刻(PRACH occasion)，或者，RACH时刻(RACH occasion，RO)；有效载荷传输资源包括时频域资源，例如：PUSCH，或者，PUSCH时刻(PUSCH occasion，PO)，或者，Payload时刻(Payload occasion)。
本申请实施例提供了一种随机接入方法，可以根据将要使用的前导和第一信息确定将要传输的内容是msgA或者是前导。该方法可以根据两步随机接入中的PUSCH碰撞情况来控制UE是否采用两步随机接入，从而可以减轻通过PUSCH发送有效载荷时的碰撞情况，可以减轻PUSCH传输失败导致的传输资源浪费问题，可以改善有效载荷传输性能以及系统接入效率和传输性能。
图7为本申请另一实施例的随机接入方法的流程示意图。该方法可以应用于接收机中，例如基站接收机，接收机可以根据检测到的前导确定将要接收检测的传输内容，并进行相应的检测。
如图7所示，该方法可以包括以下步骤：
步骤S201，进行前导检测，获取检测到的前导。
步骤S202，获取第一信息。
步骤S203，根据所述第一信息确定所述检测到的前导满足第一预设规则，则确定将要接收检测的传输内容包括有效载荷。
其中，所述第一信息包括：前导与DMRS的关联关系；或者，前导与有效载荷传输资源的关联关系；或者，前导传输资源与有效载荷传输资源的关联关系；或者，前导与有效载荷传输资源以及DMRS的关联关系；或者，前导集合。
在一种示例中，所述第一信息包括：用于指示传输内容的指示信息。其中，所述传输内容包括：前导和有效载荷，或者，所述有效载荷，或者，所述前导，或者，不传输任何内容。当所述第一信息包括用于指示传输内容的指示信息时，可以根据该指示信息来确定将要接收检测的传输内容，可以不再执行根据所述第一信息判断所述检测到的前导是否满足第一预设规则的步骤。
在一种示例中，确定将要接收检测的传输内容包括有效载荷之后，该方法还需要对有效载荷进行接收检测，例如，对于发射机传输的内容为两步随机接入中的msgA的情况。
在一种示例中，根据所述第一信息确定所述检测到的前导不满足第一预设规则，则该方法无需进行其他检测，例如，对于发射机传输的内容为前导的情况，由于步骤S201中已经完成了前导检测，所以无需进行其他接收检测。
其中，根据所述第一信息确定所述检测到的前导满足第一预设规则的具体方法，与上述实施例中发射机根据所述第一信息确定所述将要使用的前导满足第一预设规则的方法是类似的，这里不再赘述。
本申请实施例提供的随机接入方法，除了可以解决PUSCH碰撞产生的影响，也有利于接收机区分发射机发送的信息，也就是区分UE采用的是两步随机接入还是四步随机接入，从而有利于控制或降低接收机的检测复杂度。
实施方式1
本实施方式提供了一种随机接入方法，可以应用于发射机中，包括且不限于终端或用户设备UE，图8为本申请另一实施例的随机接入方法的流程示意图，如图8所示，该方法包括如下步骤：
步骤S401，获取将要使用的前导。
具体地，UE通过随机选择的方式获取将要使用的前导，或者，UE根据系统配置获取将要使用的前导，其中，系统配置包括无线资源控制(Radio Resource Control，RRC)信令、下行控制信息(Downlink Control Information，DCI)等。
UE获取将要使用的前导，可以获取前导的索引，根据该索引生成对应的前导序列，或者根据该索引从前导序列集合中获取对应的前导序列。
步骤S402，获取前导与DMRS的关联关系。
其中，前导与DMRS的关联关系包括：所有前导与DMRS的关联关系；或者，一部分前导与DMRS的关联关系。
其中，所有前导包括：所有可以用于两步随机接入的前导；或者，指定前导集合中的所有前导；或者，所有可用的前导。
其中，一部分前导包括：可以用于两步随机接入的前导中的一部分前导；或者，指定前导集合中的一部分前导；或者，所有可用的前导中的一部分前导。
步骤S403，根据将要使用的前导和所获取的前导与DMRS的关联关系确定将要传输的内容。具体地，根据前导与DMRS的关联关系确定将要使用的前导是否满足第一预设规则。如果是，则UE确定其将要传输的内容为第一消息。其中，第一消息可以为两步随机接入中的msgA，其包括将要使用的前导和有效载荷，或者，第一消息包括有效载荷。否则，UE确定其将要传输的内容为将要使用的前导，或者不进行传输。
该步骤中，根据前导与DMRS的关联关系确定将要使用的前导是否满足第一预设规则，包括以下方式至少之一：
(1)UE根据前导与DMRS的关联关系确定将要使用的前导是否属于与一个DMRS关联的前导中的指定前导之一。如果是，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。也就是说，UE将按照两步随机接入过程来进行随机接入。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。也就是说，UE将仅发送前导，将按照四步随机接入过程来进行随机接入。
在该方式中，确定将要使用的前导是否属于与一个DMRS关联的前导中的指定前导之一的方法有多种。例如，UE根据前导与DMRS的关联关系可以获取到与一个DMRS关联的M个前导，如果将要使用的前导为这M个前导中的N个前导之一，则认为将要使用的前导属于与一个DMRS关联的前导中的指定前导之一。
根据该方式，对于与一个DMRS关联的M个前导，其中的N个前导可以用于两步随机接入，而如果使用的是其他前导，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入。
(2)UE根据前导与DMRS的关联关系获取第一前导集合，如果将要使用的前导包含在该第一前导集合中，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。
在该方式中，UE根据前导与DMRS的关联关系获取第一前导集合，包括：UE根据前导与DMRS的关联关系，获取与指定DMRS中的每个DMRS关联的M个前导中的N个前导，将这N个前导作为第一前导集合中的前导，最终得到第一前导集合。
这里的指定DMRS可以是所有DMRS，也可以是一部分DMRS。例如，有多组DMRS时，指定DMRS可以是其中一组DMRS。指定DMRS可以根据DMRS数量确定，或者，根据Payload传输采用的码率或MCS确定。Payload传输采用的码率或MCS与Payload大小、Payload传输资源大小有关。例如，当Payload传输采用的码率或MCS较低时，指定DMRS的数量可以多一些。
采用该方式，第一前导集合中的前导可以用于两步随机接入，而如果使用的是其他前导，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入。
(3)UE根据前导与DMRS的关联关系确定将要使用的前导是否与至少一个DMRS之间存在关联关系。如果是，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么， 例如，UE确定其将要传输的内容即为将要使用的前导。
(4)UE根据前导与DMRS的关联关系确定与将要使用的前导关联的DMRS是否可用。如果是可用的，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导，或者，UE不进行传输。
在该方式中，UE根据前导与DMRS的关联关系确定与将要使用的前导关联的DMRS是否可用，可以结合DMRS是否可用的信息、或DMRS所在时频资源是否可用的信息来实施。
采用该方式，当与将要使用的前导关联的DMRS可用时，UE可以进行两步随机接入，否则，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入，或者放弃本次的接入尝试。
上述第一种方式、第二种方式和第四种方式中，前导与DMRS的关联关系可以是所有前导与DMRS的关联关系，也可以是一部分前导与DMRS的关联关系。
上述第三种方式中，前导与DMRS的关联关系具体为一部分前导与DMRS的关联关系。UE根据该关联关系确定将要使用的前导是否与至少一个DMRS之间存在关联关系，也就是确定将要使用的前导是否为这一部分前导之一。可以看到，该方式中，这一部分前导可以用于两步随机接入，而如果使用的是其他前导，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入。
需要说明的是，与各个DMRS关联的前导的数量可能是相同的，也可能是不同的。
上述描述中，M为整数，N为整数，N小于或等于M。并且，N的取值可以根据M的取值确定，或者，根据前导数量和DMRS数量确定。
具体地，上述N个前导包括：M个前导中以指定前导为起点并以指定间隔获取的N个前导。例如：所述M个前导中的前N个前导；或者，所述M个前导中的后N个前导；或者，所述M个前导中的中间N个前导；或者，所述M个前导中的前N个具有奇数索引的前导；或者，所述M个前导中的前N个具有偶数索引的前导。
该实施方式中，所述方法还包括：
步骤S404，传输将要传输的内容。
具体地，如果将要传输的内容为msgA，则可以通过PRACH发送前导，通 过PUSCH发送有效载荷，或者，可以通过PUSCH来发送msgA；如果将要传输的内容为前导，则可以通过PRACH发送前导。
该实施方式中，前导与DMRS的关联关系可以是系统广播的，或者是系统预配置的，或者是系统半静态配置的；也可以是根据前导与有效载荷传输资源的关联关系、或者前导传输资源和有效载荷传输资源的关联关系、或者前导与资源集合的关联关系获取的，其中，资源集合包括有效载荷传输资源和DMRS。
其中，前导传输资源包括：PRACH，或者，PRACH occasion，或者，RACH occasion；有效载荷传输资源包括：PUSCH，或者，PUSCH occasion，或者，Payload occasion。
该实施方式的随机接入方法，可以根据将要使用的前导以及前导与DMRS的关联关系来确定将要传输的内容是msgA或者是前导。该方法可以根据两步随机接入中的PUSCH碰撞情况来控制UE是否采用两步随机接入，从而可以减轻通过PUSCH发送有效载荷时的碰撞情况，可以减轻PUSCH传输失败导致的传输资源浪费问题，可以改善有效载荷传输性能以及系统接入效率和传输性能。
当DMRS数量较少、与每个DMRS之间存在关联关系的前导数量较多时，使用相同的PUSCH发送有效载荷的UE数量可能较大，会存在比较严重的PUSCH碰撞，从而会影响有效载荷传输性能，会导致很多UE从2-step RACH回退到4-step RACH，进而导致传输资源浪费，影响系统接入效率和传输性能。而根据该实施方式所述的方法，可以控制UE是否采用2-step RACH，也就是控制UE发送msgA或者是前导，从而可以减轻PUSCH碰撞，改善有效载荷传输性能，避免很多UE进行回退，进而避免传输资源浪费，改善系统接入效率和传输性能。
一种示例中，可以仅允许与指定DMRS中的每个DMRS关联的M个前导中的一个前导用于两步随机接入，这样可以避免DMRS碰撞，也可以控制PUSCH碰撞。
实施方式2
本实施方式提供了一种随机接入方法，可以应用于发射机中，包括且不限于终端或用户设备UE，图9为本申请另一实施例的随机接入方法的流程示意图，如图9所示，该方法包括如下步骤：
步骤S501，获取将要使用的前导。
具体地，UE通过随机选择的方式获取将要使用的前导，或者，UE根据系统配置获取将要使用的前导。
步骤S502，获取前导与有效载荷传输资源的关联关系。
其中，前导与有效载荷传输资源的关联关系包括：所有前导与有效载荷传输资源的关联关系；或者，一部分前导与有效载荷传输资源的关联关系。
其中，有效载荷传输资源是用于传输有效载荷的传输资源。
其中，有效载荷为两步随机接入中msgA中的有效载荷；或者，有效载荷用来携带数据信息。
其中，有效载荷传输资源包括：PUSCH，或者，PUSCH occasion，或者，Payload occasion。
其中，所有前导包括：所有可以用于两步随机接入的前导；或者，指定前导集合中的所有前导；或者，所有可用的前导。
其中，一部分前导包括：可以用于两步随机接入的前导中的一部分前导；或者，指定前导集合中的一部分前导；或者，所有可用的前导中的一部分前导。
步骤S503，根据将要使用的前导和所获取的前导与有效载荷传输资源的关联关系确定将要传输的内容。具体地，UE根据前导与有效载荷传输资源的关联关系确定将要使用的前导是否满足第一预设规则。如果是，则UE确定其将要传输的内容为第一消息。其中，第一消息可以为两步随机接入中的msgA，其包括将要使用的前导和有效载荷，或者，第一消息包括有效载荷。否则，UE确定其将要传输的内容为将要使用的前导，或者不进行传输。
该步骤中，UE根据前导与有效载荷传输资源的关联关系确定将要使用的前导是否满足第一预设规则，包括以下方式至少之一：
(1)UE根据前导与有效载荷传输资源的关联关系确定将要使用的前导是否属于与一个有效载荷传输资源关联的前导中的指定前导之一。如果是，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA，其中，msgA包括将要使用的前导和有效载荷。也就是说，UE将按照两步随机接入过程来进行随机接入。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。也就是说，UE将仅发送前导，将按照四步随机接入过程来进行随机接入。
在该方式中，确定将要使用的前导是否属于与一个有效载荷传输资源关联的前导中的指定前导之一的方法有多种。例如，UE根据前导与有效载荷传输资源的关联关系可以获取到与一个有效载荷传输资源关联的P个前导，如果将要使用的前导为这P个前导中的Q个前导之一，则认为将要使用的前导属于与一个有效载荷传输资源关联的前导中的指定前导之一。
在该方式中，对于与一个有效载荷传输资源关联的P个前导，其中的Q个前导可以用于两步随机接入，而如果使用的是其他前导，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入。
(2)UE根据前导与有效载荷传输资源的关联关系获取第二前导集合，如果将要使用的前导包含在该第二前导集合中，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。
在该方式中，UE根据前导与有效载荷传输资源的关联关系获取第二前导集合，包括：UE根据前导与有效载荷传输资源的关联关系，获取与指定传输资源中的每个传输资源关联的P个前导中的Q个前导，将这Q个前导作为第二前导集合中的前导，最终得到第二前导集合。
这里的指定传输资源可以是所有可用的传输资源，也可以是一部分可用的传输资源。例如，有多组传输资源时，指定传输资源可以是其中一组传输资源。
在该方式中，第二前导集合中的前导可以用于两步随机接入，而如果使用的是其他前导，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入。
(3)UE根据前导与有效载荷传输资源的关联关系确定将要使用的前导是否与至少一个有效载荷传输资源之间存在关联关系，如果是，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。
(4)UE根据前导与有效载荷传输资源的关联关系确定与将要使用的前导关联的有效载荷传输资源是否可用。如果是可用的，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导，或者，UE不进行传输。
在该方式中，UE根据前导与有效载荷传输资源的关联关系确定与将要使用的前导关联的有效载荷传输资源是否可用，可以结合有效载荷传输资源是否可用的信息来实施。
采用该方式，当与将要使用的前导关联的有效载荷传输资源可用时，UE可以进行两步随机接入，否则，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入，或者放弃本次的接入尝试。
上述第一种方式、第二种方式和第四种方式中，前导与有效载荷传输资源的关联关系可以是所有前导与有效载荷传输资源的关联关系，也可以是一部分 前导与有效载荷传输资源的关联关系。
上述第三种方式中，前导与有效载荷传输资源的关联关系具体为一部分前导与有效载荷传输资源的关联关系。UE根据该关联关系确定将要使用的前导是否与至少一个有效载荷传输资源之间存在关联关系，也就是确定将要使用的前导是否为这一部分前导之一。可以看到，该方式中，这一部分前导可以用于两步随机接入，而如果使用的是其他前导，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入。
需要说明的是，与各个传输资源关联的前导的数量可能是相同的，也可能是不同的。
上述描述中，P为整数，Q为整数，Q小于或等于P。并且，Q的取值可以根据P的取值确定，或者，根据前导数量和传输资源数量确定，或者，根据Payload传输采用的码率或MCS确定。Payload传输采用的码率或MCS与Payload大小、Payload传输资源大小有关。例如，当Payload传输采用的码率或MCS较低时，Q的取值可以大一些。
具体地，上述Q个前导包括：P个前导中以指定前导为起点并以指定间隔获取的Q个前导。例如：所述P个前导中的前Q个前导；或者，所述P个前导中的后Q个前导；或者，所述P个前导中的中间Q个前导；或者，所述P个前导中的前Q个具有奇数索引的前导；或者，所述P个前导中的前Q个具有偶数索引的前导。
该实施方式中，所述方法还包括：
步骤S504，传输将要传输的内容；
具体地，如果将要传输的内容为msgA，则可以通过PRACH发送前导，通过PUSCH发送有效载荷，或者，可以通过PUSCH发送msgA；如果将要传输的内容为前导，则可以通过PRACH发送前导。
该实施方式中，前导与有效载荷传输资源的关联关系可以是系统广播的，或者是系统预配置的，或者是系统半静态配置的；也可以是根据前导与DMRS的关联关系、或者前导传输资源和有效载荷传输资源的关联关系、或者前导与资源集合的关联关系获取的，其中，资源集合包括有效载荷传输资源和DMRS。
其中，前导传输资源包括：PRACH，或者，PRACH occasion，或者，RACH occasion；有效载荷传输资源包括：PUSCH，或者，PUSCH occasion，或者，Payload occasion。
该实施方式的随机接入方法，可以根据将要使用的前导以及前导与有效载荷传输资源的关联关系来确定将要传输的内容是msgA或者是前导。该方法可以 根据两步随机接入中的PUSCH碰撞情况来控制UE是否采用两步随机接入，从而可以减轻通过PUSCH发送有效载荷时的碰撞情况，可以减轻PUSCH传输失败导致的传输资源浪费问题，可以改善有效载荷传输性能以及系统接入效率和传输性能。
当有效载荷传输资源数量较少、与每个有效载荷传输资源之间存在关联关系的前导数量较多时，使用相同的PUSCH发送有效载荷的UE数量可能较大，会存在比较严重的PUSCH碰撞，从而会影响有效载荷传输性能。因此，导致很多UE从2-step RACH回退到4-step RACH，进而导致传输资源浪费，影响系统接入效率和传输性能。而根据该实施方式所述的方法，可以控制UE是否采用2-step RACH，也就是控制UE发送msgA或者是前导，从而可以减轻PUSCH碰撞，改善有效载荷传输性能，避免很多UE进行回退，进而避免传输资源浪费，改善系统接入效率和传输性能。
实施方式3
本实施方式提供了一种随机接入方法，可以应用于发射机中，包括且不限于终端或用户设备(UE)，图10为本申请另一实施例的随机接入方法的流程示意图，如图10所示，该方法包括如下步骤：
步骤S601，获取将要使用的前导。
具体地，UE通过随机选择的方式获取将要使用的前导，或者，UE根据系统配置获取将要使用的前导。
步骤S602，获取前导传输资源与有效载荷传输资源的关联关系。
其中，前导传输资源包括：PRACH，或者，PRACH occasion，或者，RACH occasion。
其中，有效载荷传输资源包括：PUSCH，或者，PUSCH occasion，或者，Payload occasion。
其中，前导传输资源与有效载荷传输资源的关联关系可以是一对一的关系，或者多对一的关系等。
步骤S603，根据将要使用的前导和所获取的前导传输资源与有效载荷传输资源的关联关系确定将要传输的内容。具体地，UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导是否满足第一预设规则。如果是，则UE确定其将要传输的内容为第一消息。其中，第一消息可以为两步随机接入中的msgA，其包括将要使用的前导和有效载荷，或者，第一消息包括有效载荷。 否则，UE确定其将要传输的内容为将要使用的前导，或者不进行传输。
该步骤中，UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导是否满足第一预设规则，包括以下方式至少之一：
(1)UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导对第一指定值取余数是否等于第二指定值。如果是，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。
其中，所述第一指定值可以根据前导传输资源与有效载荷传输资源的关联关系确定。例如，根据前导传输资源与有效载荷传输资源的关联关系，可以得到与每个有效载荷传输资源关联的前导传输资源的数量，根据该数量确定所述第一指定值。所述第一指定值也可以是预设的，还可以是根据Payload传输采用的码率或MCS确定的。
其中，所述第二指定值可以为0、或前导传输资源索引、或根据与一个有效载荷传输资源关联的前导传输资源的数量或索引确定，例如，如果与一个有效载荷传输资源关联的前导传输资源有2个，则对于这2个前导传输资源，所述第二指定值分别为0、1，或者分别为1、2。
(2)UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导与前导数量之比是否位于指定取值范围内。如果是，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。
其中，所述指定取值范围可以根据前导传输资源与有效载荷传输资源的关联关系确定。例如，根据前导传输资源与有效载荷传输资源的关联关系，可以得到与每个有效载荷传输资源关联的前导传输资源的数量，根据该数量确定所述指定取值范围。该指定取值范围也可以是预设的，还可以是根据Payload传输采用的码率或MCS确定的。
一种示例中，如果第一种方式和第二种方式的判断结果为是，则UE确定其将要传输的内容为msgA。其中，msgA包括将要使用的前导和有效载荷。也就是说，UE将按照两步随机接入过程来进行随机接入。否则，UE确定其将要传输的内容即为将要使用的前导。也就是说，UE将仅发送前导，将按照四步随机接入过程来进行随机接入。
从第一种方式和第二种方式可以看到，判断结果为是的前导可以用于两步随机接入。而如果使用的是其他前导，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入。
(3)UE根据前导传输资源与有效载荷传输资源的关联关系获取第三前导集合。如果将要使用的前导包含在该第三前导集合中，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。
上述第三种方式中，UE根据前导传输资源与有效载荷传输资源的关联关系获取第三前导集合，包括：UE根据前导传输资源与有效载荷传输资源的关联关系，得到与每个有效载荷传输资源关联的前导传输资源，以及可用的前导，将可用的前导中的指定前导作为第三前导集合中的前导，得到第三前导集合。例如，与第一种方式类似，可以将可用前导的索引对第一指定值取余数，获取余数为第二指定值的前导索引，将这些前导作为第三前导集合中的前导。
从第三种方式可以看到，第三前导集合中的前导可以用于两步随机接入，而如果使用的是其他前导，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入。
(4)UE根据前导传输资源与有效载荷传输资源的关联关系确定与将要使用的前导传输资源关联的有效载荷传输资源是可用的。如果是可用的，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导，或者，UE不进行传输。
其中，将要使用的前导传输资源用来传输将要使用的前导。
该方式中，根据前导传输资源与有效载荷传输资源的关联关系确定与将要使用的前导传输资源关联的有效载荷传输资源是可用的，可以结合有效载荷传输资源是否可用的信息来实施。
采用该方式，当与将要使用的前导传输资源关联的有效载荷传输资源可用时，UE可以进行两步随机接入，否则，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入，或者放弃本次的接入尝试。
该实施方式中，所述方法还包括：
步骤S604，传输将要传输的内容。
具体地，如果将要传输的内容为msgA，则可以通过PRACH发送前导，通过PUSCH发送有效载荷，或者，可以通过PUSCH发送msgA。如果将要传输的内容为前导，则可以通过PRACH发送前导。
该实施方式中，前导传输资源与有效载荷传输资源的关联关系可以是系统广播的，或者是系统预配置的，或者是系统半静态配置的；也可以是根据前导传输资源的数量、有效载荷传输资源的数量以及预设规则获取的，或者，根据 同步信号块SSB与前导传输资源的关联关系、同步信号块SSB与有效载荷传输资源的关联关系获取的。
该实施方式的随机接入方法，可以根据将要使用的前导以及前导传输资源与有效载荷传输资源的关联关系来确定将要传输的内容是msgA或者是前导。该方法可以根据两步随机接入中的PUSCH碰撞情况来控制UE是否采用两步随机接入，从而可以减轻通过PUSCH发送有效载荷时的碰撞情况，可以减轻PUSCH传输失败导致的传输资源浪费问题，可以改善有效载荷传输性能以及系统接入效率和传输性能。
当有效载荷传输资源数量较少、与每个有效载荷传输资源之间存在关联关系的前导传输资源的数量较多时，使用相同的PUSCH发送有效载荷的UE数量可能较大，会存在比较严重的PUSCH碰撞，从而会影响有效载荷传输性能，会导致很多UE从2-step RACH回退到4-step RACH，进而导致传输资源浪费，影响系统接入效率和传输性能。而根据该实施方式所述的方法，可以控制UE是否采用2-step RACH，也就是控制UE发送msgA或者是前导，从而可以减轻PUSCH碰撞，改善有效载荷传输性能，避免很多UE进行回退，进而避免传输资源浪费，改善系统接入效率和传输性能。
实施方式4
本实施方式提供了一种随机接入方法，可以应用于发射机中，包括且不限于终端或用户设备UE，图11为本申请另一实施例的随机接入方法的流程示意图，如图11所示，该方法包括如下步骤：
步骤S701，获取将要使用的前导。
具体地，UE通过随机选择的方式获取将要使用的前导，或者，UE根据系统配置获取将要使用的前导。
步骤S702，获取前导与资源集合的关联关系。
其中，资源集合包括指定的有效载荷传输资源和指定的DMRS。
其中，前导与资源集合的关联关系包括：所有前导与资源集合的关联关系；或者，一部分前导与资源集合的关联关系。
其中，有效载荷传输资源是用于传输有效载荷的传输资源。
其中，有效载荷为两步随机接入中msgA中的有效载荷；或者，有效载荷用来携带数据信息。
其中，有效载荷传输资源包括：PUSCH，或者，PUSCH occasion，或者， Payload occasion。
其中，所有前导包括：所有可以用于两步随机接入的前导；或者，指定前导集合中的所有前导；或者，所有可用的前导。
其中，一部分前导包括：可以用于两步随机接入的前导中的一部分前导；或者，指定前导集合中的一部分前导；或者，所有可用的前导中的一部分前导。
步骤S703，根据将要使用的前导和所获取的前导与资源集合的关联关系确定将要传输的内容。具体地，UE根据前导与资源集合的关联关系确定将要使用的前导是否满足第一预设规则。如果是，则UE确定其将要传输的内容为第一消息。其中，第一消息可以为两步随机接入中的msgA，其包括将要使用的前导和有效载荷，或者，第一消息包括有效载荷。否则，UE确定其将要传输的内容为将要使用的前导，或者不进行传输。
该步骤中，UE根据前导与资源集合的关联关系确定将要使用的前导是否满足第一预设规则，包括以下方式至少之一：
(1)UE根据前导与资源集合的关联关系确定将要使用的前导是否属于与一个资源集合关联的前导中的指定前导之一。如果是，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA，其中，msgA包括将要使用的前导和有效载荷。也就是说，UE将按照两步随机接入过程来进行随机接入。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。也就是说，UE将仅发送前导，将按照四步随机接入过程来进行随机接入。
在该方式中，确定将要使用的前导是否属于与一个资源集合关联的前导中的指定前导之一的方法有多种。例如，UE根据前导与资源集合的关联关系可以获取到与一个资源集合关联的S个前导，如果将要使用的前导为这S个前导中的T个前导之一，则认为将要使用的前导属于与一个资源集合关联的前导中的指定前导之一。
在该方式中，对于与一个资源集合关联的S个前导，其中的T个前导可以用于两步随机接入，而如果使用的是其他前导，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入。
(2)UE根据前导与资源集合的关联关系获取第四前导集合，如果将要使用的前导包含在该第四前导集合中，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。
在该方式中，UE根据前导与资源集合的关联关系获取第四前导集合，包括： UE根据前导与资源集合的关联关系，获取与指定资源集合中的每个资源集合关联的S个前导中的T个前导，将这T个前导作为第四前导集合中的前导，最终得到第四前导集合。
这里的指定资源集合可以是所有可用的资源集合，也可以是一部分可用的资源集合。例如，有多组资源集合时，指定资源集合可以是其中一组资源集合。
在该方式中，第四前导集合中的前导可以用于两步随机接入，而如果使用的是其他前导，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入。
(3)UE根据前导与资源集合的关联关系确定将要使用的前导是否与至少一个资源集合之间存在关联关系，如果是，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。
(4)UE根据前导与资源集合的关联关系确定与将要使用的前导关联的资源集合是否可用。如果是可用的，则认为满足第一预设规则。那么，例如，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则。那么，例如，UE确定其将要传输的内容即为将要使用的前导。
在该方式中，UE根据前导与资源集合的关联关系确定与将要使用的前导关联的资源集合是否可用，可以结合资源集合是否可用的信息来实施。
采用该方式，当与将要使用的前导关联的资源集合可用时，UE可以进行两步随机接入，否则，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入，或者放弃本次的接入尝试。
上述第一种方式、第二种方式和第四种方式中，前导与资源集合的关联关系可以是所有前导与资源集合的关联关系，也可以是一部分前导与资源集合的关联关系。
上述第三种方式中，前导与资源集合的关联关系具体为一部分前导与资源集合的关联关系。UE根据该关联关系确定将要使用的前导是否与至少一个资源集合之间存在关联关系，也就是确定将要使用的前导是否为这一部分前导之一。可以看到，该方式中，这一部分前导可以用于两步随机接入，而如果使用的是其他前导，即使UE支持两步随机接入的功能，UE也将按照四步随机接入过程来进行随机接入。
需要说明的是，与各个资源集合关联的前导的数量可能是相同的，也可能是不同的。
上述描述中，S为整数，T为整数，T小于或等于S。并且，T的取值可以 根据S的取值确定，或者，根据前导数量和资源集合数量确定，或者，根据Payload传输采用的码率或MCS确定。Payload传输采用的码率或MCS与Payload大小、Payload传输资源大小有关。例如，当Payload传输采用的码率或MCS较低时，T的取值可以大一些。
具体地，上述T个前导包括：S个前导中以指定前导为起点并以指定间隔获取的T个前导。例如：所述S个前导中的前T个前导；或者，所述S个前导中的后T个前导；或者，所述S个前导中的中间T个前导；或者，所述S个前导中的前T个具有奇数索引的前导；或者，所述S个前导中的前T个具有偶数索引的前导。
该实施方式中，所述方法还包括：
步骤S704，传输将要传输的内容。
具体地，如果将要传输的内容为msgA，则可以通过PRACH发送前导，通过PUSCH发送有效载荷，或者，可以通过PUSCH发送msgA；如果将要传输的内容为前导，则可以通过PRACH发送前导。
该实施方式中，前导与资源集合的关联关系可以是系统广播的，或者是系统预配置的，或者是系统半静态配置的；也可以是根据前导与DMRS的关联关系、或者前导与有效载荷传输资源的关联关系、或者前导传输资源和有效载荷传输资源的关联关系获取的。
其中，前导传输资源包括：PRACH，或者，PRACH occasion，或者，RACH occasion；有效载荷传输资源包括：PUSCH，或者，PUSCH occasion，或者，Payload occasion。
该实施方式的随机接入方法，可以根据将要使用的前导以及前导与资源集合的关联关系来确定将要传输的内容是msgA或者是前导。该方法可以根据两步随机接入中的PUSCH碰撞情况来控制UE是否采用两步随机接入，从而可以减轻通过PUSCH发送有效载荷时的碰撞情况，可以减轻PUSCH传输失败导致的传输资源浪费，可以改善有效载荷传输性能以及系统接入效率和传输性能。
当资源集合数量较少、与每个资源集合之间存在关联关系的前导数量较多时，使用相同的PUSCH发送有效载荷的UE数量可能较大，会存在比较严重的PUSCH碰撞，从而会影响有效载荷传输性能。因此，导致很多UE从2-step RACH回退到4-step RACH，进而导致传输资源浪费，影响系统接入效率和传输性能。而根据该实施方式所述的方法，可以控制UE是否采用2-step RACH，也就是控制UE发送msgA或者是前导，从而可以减轻PUSCH碰撞，改善有效载荷传输性能，避免很多UE进行回退，进而避免传输资源浪费，改善系统接入效率和传 输性能。
一种示例中，每个资源集合包括一个有效载荷传输资源和一个DMRS，可以仅允许与指定资源集合中的每个资源集合关联的S个前导中的一个前导用于两步随机接入，这样可以避免DMRS碰撞，也可以控制PUSCH碰撞。
实施方式5
该实施方式中，假设一个小区中有多个UE。这些UE中，有些UE距离基站较远或者位于小区边缘，信号质量较差，有些UE距离基站较近或者位于小区中心，信号质量较好。
可以考虑将信号质量较好的UE作为能够采用两步随机接入的UE，而信号质量较差的UE则采用四步随机接入。
对于能够采用两步随机接入的UE，也就是信号质量较好的UE，可以进一步按照上述实施例所述的随机接入方法进行随机接入，包括：获取将要使用的前导；获取第一信息；根据所述将要使用的前导和所述第一信息确定将要传输的内容。
其中，所述第一信息包括：前导与DMRS的关联关系；或者，前导与有效载荷传输资源的关联关系；或者，前导传输资源与有效载荷传输资源的关联关系；或者，前导与有效载荷传输资源以及DMRS的关联关系；或者，前导集合。
所述第一信息还可以包括：用于指示传输内容的指示信息；其中，所述传输内容包括：所述将要使用的前导和有效载荷，或者，所述有效载荷，或者，所述将要使用的前导，或者，不传输任何内容。
如果UE确定将要传输的内容为msgA，该msgA中包括所述将要使用的前导和有效载荷，则UE按照2-step RACH进行随机接入。如果UE确定将要传输的内容为所述将要使用的前导，则UE按照4-step RACH进行随机接入。也就是说，对于能够采用两步随机接入的UE，上述实施例所述的随机接入方法可以控制这些UE是否真正采用两步随机接入。为了减轻PUSCH碰撞产生的影响，一些能够采用两步随机接入的UE会按照4-step RACH进行随机接入。
实施方式6
该实施方式中，假设前导集合A中的前导用于四步随机接入，前导集合B中的前导用于两步随机接入。可以使用前导集合B中的前导的UE为支持两步随机接入的UE。
如果UE仅支持四步随机接入，或者，UE选择了前导集合A中的前导，则该UE按照4-step RACH过程进行随机接入。
如果UE支持两步随机接入，或者，UE选择了前导集合B中的前导，则该UE可以进一步按照上述实施例所述的随机接入方法进行随机接入，包括：获取将要使用的前导；获取第一信息；根据所述将要使用的前导和所述第一信息确定将要传输的内容。
其中，所述第一信息包括：前导与DMRS的关联关系；或者，前导与有效载荷传输资源的关联关系；或者，前导传输资源与有效载荷传输资源的关联关系；或者，前导与有效载荷传输资源以及DMRS的关联关系；或者，前导集合。
所述第一信息还可以包括：用于指示传输内容的指示信息；其中，所述传输内容包括：所述将要使用的前导和有效载荷，或者，所述有效载荷，或者，所述将要使用的前导，或者，不传输任何内容。
其中，所述将要使用的前导为前导集合B中的前导。
其中，对于前导与DMRS的关联关系、前导与有效载荷传输资源的关联关系、前导传输资源与有效载荷传输资源的关联关系、前导与有效载荷传输资源以及DMRS的关联关系、以及前导集合，这里提到的前导同样是前导集合B中的前导。
该实施方式中，如果UE确定将要传输的内容为msgA，该msgA中包括所述将要使用的前导和有效载荷，则UE按照2-step RACH进行随机接入。如果UE确定将要传输的内容为所述将要使用的前导，则UE按照4-step RACH进行随机接入。也就是说，对于支持两步随机接入的UE，上述实施例所述的随机接入方法可以控制这些UE是否真正采用两步随机接入。为了减轻PUSCH碰撞产生的影响，一些支持两步随机接入的UE会按照4-step RACH进行随机接入。
实施方式7
本实施方式提供了一种传输方法，可以应用于发射机中，包括且不限于终端或用户设备UE。具体地，UE按照上述实施例所述的传输方法进行传输，包括：获取第一索引；获取第一信息；根据所述第一索引和所述第一信息确定将要传输的内容。
在确定将要传输的内容之后，UE可以传输将要传输的内容。
其中，第一索引为逻辑索引，没有具体的物理含义。第一索引还可以为根据指定信息得到的索引，其中，指定信息包括身份标识信息等。第一索引可以 是通过随机生成或随机选择的方式获取的，或者是根据系统配置获取的。
其中，第一信息包括：索引与DMRS的关联关系；或者，索引与有效载荷传输资源的关联关系；或者，索引与有效载荷传输资源以及DMRS的关联关系；或者，索引集合。
其中，根据所述第一索引和所述第一信息确定将要传输的内容，包括：根据所述第一信息确定所述第一索引是否满足第一预设规则。如果是，则UE确定其将要传输的内容包括有效载荷。否则，UE确定其将不进行传输。
该实施方式的传输方法，可以根据第一索引和第一信息来确定是否进行有效载荷的传输，可以控制或减轻有效载荷传输的碰撞情况，从而可以改善有效载荷传输性能以及系统传输性能。
应用示例1
基于实施方式1提供了一种应用示例。该应用示例中，假设有64个前导，索引分别为0,1,...,63。这64个前导均可以用于两步随机接入。
该应用示例中，UE获取将要使用的前导，假设为前导1。
UE还获取前导与DMRS的关联关系，如图12所示，该关联关系中，有8个DMRS，索引分别为0,1,...,7，每8个前导与一个DMRS关联。也就是说，所有前导与DMRS之间存在关联关系。
然后，UE根据将要使用的前导和所获取的前导与DMRS的关联关系确定将要传输的内容。具体地，UE根据前导与DMRS的关联关系确定将要使用的前导是否满足第一预设规则。如果是，则UE确定其将要传输的内容为msgA。其中，msgA包括将要使用的前导和有效载荷，或者msgA包括有效载荷。否则，UE确定其将要传输的内容为将要使用的前导。
UE根据前导与DMRS的关联关系确定将要使用的前导是否满足第一预设规则，包括以下方式，例如：
(1)方式一：UE根据前导与DMRS的关联关系确定将要使用的前导是否属于与一个DMRS关联的前导中的指定前导之一。如果是，则满足第一预设规则，UE确定其将要传输的内容为msgA。否则，不满足第一预设规则，UE确定其将要传输的内容即为将要使用的前导。
假设第一预设规则为与一个DMRS关联的前导中的前2个前导之一，而前导1属于与DMRS 0关联的8个前导中的前2个前导之一，也就是说，前导1满足第一预设规则，因此，UE确定其将要传输的内容为msgA；或者，假设第 一预设规则为与一个DMRS关联的前导中的第1个前导，而前导1并不是与DMRS 0关联的8个前导中的第一个前导，也就是说，前导1不满足第一预设规则，因此，UE确定其将要传输的内容为将要使用的前导，即前导1。
(2)方式二：UE根据前导与DMRS的关联关系获取第一前导集合，如果将要使用的前导包含在该第一前导集合中，则满足第一预设规则。UE确定其将要传输的内容为msgA。否则，不满足第一预设规则。UE确定其将要传输的内容即为将要使用的前导。
例如，UE根据前导与DMRS的关联关系，获取与每个DMRS关联的8个前导中的前2个前导，将这2个前导作为第一前导集合中的前导，最终得到第一前导集合，即{前导0,前导1,前导8,前导9,...,前导56,前导57}。可以看到，前导1包含在第一前导集合中，因此，UE确定其将要传输的内容为msgA。
再如，UE根据前导与DMRS的关联关系，获取与每个DMRS关联的8个前导中的第1个前导，将这个前导作为第一前导集合中的前导，最终得到第一前导集合，即{前导0,前导8,...,前导56}。可以看到，前导1并不包含在第一前导集合中，因此，UE确定其将要传输的内容为将要使用的前导，即前导1。
然后，UE发送将要传输的内容。
应用示例2
基于实施方式1提供了另一种应用示例。该应用示例中，假设有64个前导，索引分别为0,1,...,63，这64个前导均可以用于两步随机接入。
该应用示例中，UE获取将要使用的前导，假设为前导1。
UE还获取前导与DMRS的关联关系，如图13所示，该关联关系中，有8个DMRS，索引分别为0,1,...,7，分别有2个前导与一个DMRS关联，例如，前导0、前导1与DMRS 0关联，其他类似。也就是说，所有前导中，有一部分前导与DMRS之间存在关联关系。
然后，UE根据将要使用的前导和所获取的前导与DMRS的关联关系确定将要传输的内容，例如：UE根据前导与DMRS的关联关系确定将要使用的前导是否与至少一个DMRS之间存在关联关系，如果是，则UE确定其将要传输的内容为msgA，否则，UE确定其将要传输的内容即为将要使用的前导。
而按照该示例中的前导与DMRS的关联关系，前导1与DMRS 0关联，因此，UE确定其将要传输的内容为msgA。
然后，UE发送将要传输的内容。
该应用示例中，如果假设UE获取的将要使用的前导为前导7，按照该示例中的前导与DMRS的关联关系，前导7并不与任何一个DMRS关联，那么，UE确定其将要传输的内容为将要使用的前导，即前导7。
该应用示例中，前导与DMRS的关联关系可以是半静态配置或半静态变化的。例如，前导与DMRS的关联关系还可能为：分别有1个前导与一个DMRS关联，例如，前导0与DMRS 0关联，前导8与DMRS 1关联，前导16与DMRS2关联，…，前导56与DMRS 7关联。进一步，按照该应用示例，假设UE获取的将要使用的前导为前导1，而前导1并不与任何一个DMRS关联，那么，UE确定其将要传输的内容为将要使用的前导，即前导1。
应用示例3
基于实施方式2提供了一种应用示例。该应用示例中，假设有64个前导，索引分别为0,1,...,63，这64个前导均可以用于两步随机接入。
该应用示例中，UE获取将要使用的前导，假设为前导1。
UE还获取前导与有效载荷传输资源的关联关系，其中，有效载荷传输资源用来传输有效载荷，如图14所示，假设有8个传输资源单元(Resource Unit，RU)可以用来传输有效载荷，索引分别为0,1,...,7，每8个前导与一个RU关联。也就是说，所有前导与有效载荷传输资源之间存在关联关系。
然后，UE根据将要使用的前导和所获取的前导与有效载荷传输资源的关联关系确定将要传输的内容。具体地，UE根据前导与有效载荷传输资源的关联关系确定将要使用的前导是否满足第一预设规则。如果是，则UE确定其将要传输的内容为msgA。其中，msgA包括将要使用的前导和有效载荷，或者msgA包括有效载荷。否则，UE确定其将要传输的内容为将要使用的前导。
UE根据前导与有效载荷传输资源的关联关系确定将要使用的前导是否满足第一预设规则，包括以下方式，例如：
(1)方式一：UE根据前导与有效载荷传输资源的关联关系确定将要使用的前导是否属于与一个有效载荷传输资源关联的前导中的指定前导之一。如果是，则满足第一预设规则，UE确定其将要传输的内容为msgA。否则，不满足第一预设规则，UE确定其将要传输的内容即为将要使用的前导。
例如，假设第一预设规则为与一个RU关联的前导中的前2个前导之一，而前导1属于与RU 0关联的8个前导中的前2个前导之一，也就是说前导1满足第一预设规则，因此，UE确定其将要传输的内容为msgA。
再如，假设第一预设规则为与一个RU关联的前导中的第1个前导，而前导1并不是与RU 0关联的8个前导中的第1个前导，也就是说前导1不满足第一预设规则，因此，UE确定其将要传输的内容为将要使用的前导，即前导1。
(2)方式二：UE根据前导与有效载荷传输资源的关联关系获取第二前导集合，如果将要使用的前导包含在该第二前导集合中，则满足第一预设规则。UE确定其将要传输的内容为msgA。否则，不满足第一预设规则。UE确定其将要传输的内容即为将要使用的前导。
例如，UE根据前导与有效载荷传输资源的关联关系，获取与每个RU关联的8个前导中的前2个前导，将这2个前导作为第二前导集合中的前导，最终得到第二前导集合，即{前导0,前导1,前导8,前导9,...,前导56,前导57}。可以看到，前导1包含在第二前导集合中，因此，UE确定其将要传输的内容为msgA。
再如，UE根据前导与有效载荷传输资源的关联关系，获取与每个RU关联的8个前导中的第1个前导，将这个前导作为第二前导集合中的前导，得到第二前导集合，即{前导0,前导8,...,前导56}。可以看到，前导1并不包含在第二前导集合中，因此，UE确定其将要传输的内容为将要使用的前导，即前导1。
然后，UE发送将要传输的内容。
应用示例4
基于实施方式2提供了另一种应用示例。该应用示例中，假设有64个前导，索引分别为0,1,...,63，这64个前导均可以用于两步随机接入。
该应用示例中，UE获取将要使用的前导，假设为前导1。
UE还获取前导与有效载荷传输资源的关联关系。如图15所示，假设有8个传输资源单元RU可以用来传输有效载荷，索引分别为0,1,...,7。分别有2个前导与一个RU关联，例如，前导0、前导1与RU 0关联，其他类似。也就是说，所有前导中，有一部分前导与有效载荷传输资源之间存在关联关系。
然后，UE根据将要使用的前导和所获取的前导与有效载荷传输资源的关联关系确定将要传输的内容。
例如：UE根据前导与有效载荷传输资源的关联关系确定将要使用的前导是否与至少一个有效载荷传输资源之间存在关联关系。如果是，则UE确定其将要传输的内容为msgA。否则，UE确定其将要传输的内容即为将要使用的前导。
而按照该示例中的前导与有效载荷传输资源的关联关系，前导1与RU 0关 联。因此，UE确定其将要传输的内容为msgA。
然后，UE发送将要传输的内容。
该应用示例中，如果假设UE获取的将要使用的前导为前导7，按照该示例中的前导与有效载荷传输资源的关联关系，前导7并不与任何一个RU关联，那么，UE确定其将要传输的内容为将要使用的前导，即前导7。
该应用示例中，前导与有效载荷传输资源的关联关系可以是半静态配置或半静态变化的。例如，前导与有效载荷传输资源的关联关系还可能为：分别有1个前导与一个RU关联，例如，前导0与RU 0关联，前导8与RU 1关联，前导16与RU 2关联，…，前导56与RU 7关联。进一步，按照该应用示例，假设UE获取的将要使用的前导为前导1，而前导1并不与任何一个RU关联，那么，UE确定其将要传输的内容为将要使用的前导，即前导1。
应用示例5
基于实施方式3提供了一种应用示例。该应用示例中，假设有64个前导，索引分别为0,1,...,63，这64个前导均可以用于两步随机接入。
该应用示例中，UE获取将要使用的前导。
UE还获取前导传输资源与有效载荷传输资源的关联关系。如图16所示，前导传输资源包括8个RACH occasion(RO)，索引分别为0,1,...,7。有效载荷传输资源包括4个PUSCH occasion(PO)，索引分别为0,1,2,3。并且，每2个RO与一个PO关联。也就是说，前导传输资源与有效载荷传输资源之间是多对一的关联关系。
然后，UE根据将要使用的前导和所获取的前导传输资源与有效载荷传输资源的关联关系确定将要传输的内容。具体地，UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导是否满足第一预设规则。如果是，则UE确定其将要传输的内容为msgA。其中，msgA包括将要使用的前导和有效载荷，或者msgA包括有效载荷。否则，UE确定其将要传输的内容为将要使用的前导。
UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导是否满足第一预设规则，包括以下方式，例如：
(1)方式一：UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导对第一指定值取余数是否等于第二指定值。如果是，则满足第一预设规则。UE确定其将要传输的内容为msgA。否则，不满足第一预设规则， UE确定其将要传输的内容即为将要使用的前导。
例如，假设第一预设规则为前导索引对指定值X取余数为Z。其中，该指定值X根据前导传输资源与有效载荷传输资源的关联关系确定。例如，根据前导传输资源与有效载荷传输资源的关联关系，可以得到与每个有效载荷传输资源关联的前导传输资源的数量为2，可以令X＝a*2，其中a为调整因子，这里假设a＝8，则可以得到X＝16。该指定值X也可以是预设的，并且是可以改变的，例如，当前预设X＝16。该指定值X还可以根据Payload传输采用的码率或MCS确定，对于不同的码率或MCS，X的取值可以不同。Z的取值可以根据与一个有效载荷传输资源关联的前导传输资源的数量确定。该示例中，由于与一个有效载荷传输资源关联的前导传输资源有2个，则对于这2个前导传输资源，Z的取值可以分别为0、1。进一步，确定将要使用的前导的索引对该指定值X取余数是否为Z。如果假设将要使用的前导的索引为32，并且将通过与PO 0关联的RO 0来传输将要使用的前导，那么，可以看到32对X＝16取余数为Z＝0，认为满足第一预设规则。那么，UE确定其将要传输的内容为msgA。如果假设将要使用的前导的索引为5，并且将通过与PO 0关联的RO 0来传输将要使用的前导，那么，可以看到5对X＝16余数不为0，认为不满足第一预设规则。那么，UE确定其将要传输的内容为将要使用的前导，即前导5。
(2)方式二：UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导与前导数量之比是否位于指定取值范围内。如果是，则满足第一预设规则，UE确定其将要传输的内容为msgA。否则，不满足第一预设规则，UE确定其将要传输的内容即为将要使用的前导。
其中，指定取值范围可以根据前导传输资源与有效载荷传输资源的关联关系确定。例如，根据前导传输资源与有效载荷传输资源的关联关系，可以得到与每个有效载荷传输资源关联的前导传输资源的数量为2，可以令Y＝b/2，其中b为调整因子，这里假设b＝1/8，则可以得到Y＝1/16。指定取值范围可以根据Y确定。由于与一个有效载荷传输资源关联的前导传输资源有2个，则对于这2个前导传输资源，该指定取值范围可以分别为0～1/16、1/16～2/16。该指定取值范围也可以是预设的，并且是可以改变的，对于不同的前导传输资源，该指定取值范围可以不同。该指定取值范围还可以根据Payload传输采用的码率或MCS确定，对于不同的码率或MCS，该指定取值范围可以不同。进一步，确定将要使用的前导的索引与前导数量之比是否位于指定取值范围内。如果假设将要使用的前导的索引为2，并且将通过与PO 0关联的RO 0来传输将要使用的前导，那么，可以看到2与64之比位于0～1/16范围内，则认为满足第一预设规则。那么，UE确定其将要传输的内容为msgA。如果假设将要使用的前导的索引为8，并且将通过与PO 0关联的RO 0来传输将要使用的前导，那么，可以看到8与 64之比并不位于0～1/16范围内，则认为不满足第一预设规则。那么，UE确定其将要传输的内容为将要使用的前导，即前导8。
(3)方式三：UE根据前导传输资源与有效载荷传输资源的关联关系获取第三前导集合。如果将要使用的前导包含在该第三前导集合中，则满足第一预设规则，UE确定其将要传输的内容为msgA。否则，不满足第一预设规则，UE确定其将要传输的内容即为将要使用的前导。
例如，UE根据前导传输资源与有效载荷传输资源的关联关系，可以得到与每个有效载荷传输资源关联的前导传输资源的数量为2，假设64个前导在每个前导传输资源上均可用，那么，可以将这些可用前导中的指定前导作为第三前导集合中的前导，从而得到第三前导集合。例如，将可用前导的索引对指定值X取余数，获取余数为Z的前导索引，将这些前导作为第三前导集合中的前导。这里令X＝16。Z的取值可以根据与一个有效载荷传输资源关联的前导传输资源的数量确定。该示例中，由于与一个有效载荷传输资源关联的前导传输资源有2个，则对于这2个前导传输资源，Z的取值可以分别为0、1。对于与PO 0关联的RO 0，Z＝0，那么，得到的第三前导集合为{前导0,前导16,前导32,前导48}。进一步，如果假设将要使用的前导的索引为32，并且将通过与RO 0来传输将要使用的前导，可以看到该前导包含在第三前导集合中，那么，UE确定其将要传输的内容为msgA。如果假设将要使用的前导的索引为5，其并不包含在该第三前导集合中，那么，UE确定其将要传输的内容为将要使用的前导，即前导5。
再如，获取可用前导的索引与前导数量之比位于指定取值范围的前导索引，将这些前导作为第三前导集合中的前导。指定取值范围可以根据指定值Y确定。这里令Y＝1/16。由于与一个有效载荷传输资源关联的前导传输资源有2个，则对于这2个前导传输资源，该指定取值范围可以分别为0～1/16、1/16～2/16。对于与PO 0关联的RO 0，指定取值范围具体可以为[0,1/16)，那么，得到的第三前导集合为{前导0,前导1,前导2,前导3}。进一步，如果假设将要使用的前导的索引为2，并且将通过RO 0来传输该前导，那么，可以看到该前导包含在该第三前导集合中，那么，UE确定其将要传输的内容为msgA。如果假设将要使用的前导的索引为8，其并不包含在该第三前导集合中，那么，UE确定其将要传输的内容为将要使用的前导，即前导8。
然后，UE发送将要传输的内容。
应用示例6
基于实施方式3提供了一种应用示例。该应用示例中，假设有64个前导，索引分别为0,1,...,63，这64个前导均可以用于两步随机接入。
该应用示例中，UE获取将要使用的前导。
UE还获取前导传输资源与有效载荷传输资源的关联关系；如图17所示，前导传输资源包括8个RACH occasion(RO)，索引分别为0,1,...,7。有效载荷传输资源包括4个PUSCH occasion(PO)，索引分别为0,1,2,3。并且，RO0、RO 1、RO 2、RO 3与PO 0、PO 1、PO 2、PO 3之间是一一对应的关联关系，其他RO并不与任何PO之间存在关联关系。这里可以认为RO 0、RO 1、RO 2、RO 3是可以用于两步随机接入的前导传输资源，其他RO则用于四步随机接入。
然后，UE根据将要使用的前导和所获取的前导传输资源与有效载荷传输资源的关联关系确定将要传输的内容。具体地，UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导是否满足第一预设规则。如果是，则UE确定其将要传输的内容为msgA。其中，msgA包括将要使用的前导和有效载荷，或者msgA包括有效载荷。否则，UE确定其将要传输的内容为将要使用的前导。
UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导是否满足第一预设规则，包括以下方式，例如：
(1)方式一：UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导对第一指定值取余数是否等于第二指定值。如果是，则满足第一预设规则，UE确定其将要传输的内容为msgA。否则，不满足第一预设规则，UE确定其将要传输的内容即为将要使用的前导。
例如，假设第一预设规则为前导索引对指定值X取余数为Z，其中，该指定值X根据前导传输资源与有效载荷传输资源的关联关系确定。例如，根据前导传输资源与有效载荷传输资源的关联关系，可以得到与每个有效载荷传输资源关联的前导传输资源的数量为1，可以令X＝a*1，其中a为调整因子，这里假设a＝16，则可以得到X＝16。Z的取值可以根据与一个有效载荷传输资源关联的前导传输资源的数量确定。该示例中，由于与一个有效载荷传输资源关联的前导传输资源有1个，则Z的取值可以为0。进一步，确定将要使用的前导的索引对该指定值X取余数是否为0。如果假设将要使用的前导的索引为32，可以看到32对X＝16取余数为0，认为满足第一预设规则，那么，UE确定其将要传输的内容为msgA。如果假设将要使用的前导的索引为5，可以看到5对X＝16取余数不为0，认为不满足第一预设规则，那么，UE确定其将要传输的内容为将要使用的前导，即前导5。
(2)方式二：UE根据前导传输资源与有效载荷传输资源的关联关系确定将要使用的前导与前导数量之比是否位于指定取值范围内。如果是，则满足第一预设规则，UE确定其将要传输的内容为msgA。否则，不满足第一预设规则，UE确定其将要传输的内容即为将要使用的前导。
其中，指定取值范围可以根据前导传输资源与有效载荷传输资源的关联关系确定。例如，根据前导传输资源与有效载荷传输资源的关联关系，可以得到与每个有效载荷传输资源关联的前导传输资源的数量为1，可以令Y＝b/1，其中b为调整因子，这里假设b＝1/16，则可以得到Y＝1/16。指定取值范围可以根据Y确定。由于与一个有效载荷传输资源关联的前导传输资源有1个，则该指定取值范围可以为0～1/16。进一步，确定将要使用的前导的索引与前导数量之比是否位于指定取值范围内。如果假设将要使用的前导的索引为2，可以看到2与64之比位于0～1/16范围内，认为满足第一预设规则，那么，UE确定其将要传输的内容为msgA。如果假设将要使用的前导的索引为8，可以看到8与64之比并不位于0～1/16范围内，认为不满足第一预设规则，那么，UE确定其将要传输的内容为将要使用的前导，即前导8。
(3)方式三：UE根据前导传输资源与有效载荷传输资源的关联关系获取第三前导集合。如果将要使用的前导包含在该第三前导集合中，则满足第一预设规则，UE确定其将要传输的内容为msgA。否则，不满足第一预设规则，UE确定其将要传输的内容即为将要使用的前导。
例如，UE根据前导传输资源与有效载荷传输资源的关联关系，可以得到与每个有效载荷传输资源关联的前导传输资源的数量为1，假设64个前导在每个前导传输资源上均可用，那么，可以将这些可用前导中的指定前导作为第三前导集合中的前导，从而得到第三前导集合。例如，将可用前导的索引对指定值X取余数，获取余数为Z的前导索引，将这些前导作为第三前导集合中的前导。这里令X＝16。Z的取值可以根据与一个有效载荷传输资源关联的前导传输资源的数量确定。该示例中，由于与一个有效载荷传输资源关联的前导传输资源有1个，则Z的取值可以为0。那么，得到的第三前导集合为{前导0,前导16,前导32,前导48}。进一步，如果假设将要使用的前导的索引为32，其包含在该第三前导集合中，那么，UE确定其将要传输的内容为msgA。如果假设将要使用的前导的索引为5，其并不包含在该第三前导集合中，那么，UE确定其将要传输的内容为将要使用的前导，即前导5。
也可以获取可用前导的索引与前导数量之比位于指定取值范围的前导索引，将这些前导作为第三前导集合中的前导，与前文描述类似，不再赘述。
然后，UE发送将要传输的内容。
本应用示例中，可以看到，如果UE使用的RO包含在RO 0～3中，则认为UE支持两步随机接入，并按照本应用示例确定是否按照2-step RACH进行随机接入，也就是确定将要传输的内容是msgA还是将要使用的前导，否则，如果UE使用的RO包含在RO 4～7中，则UE按照4-step RACH进行随机接入。
应用示例7
基于实施方式4提供了一种应用示例。该应用示例中，假设有64个前导，索引分别为0,1,...,63，这64个前导均可以用于两步随机接入。
该应用示例中，UE获取将要使用的前导，假设为前导1。
UE还获取前导与资源集合的关联关系，其中，资源集合包括指定的有效载荷传输资源和指定的DMRS，有效载荷传输资源用来传输有效载荷。如图18所示，假设有8个传输资源单元RU可以用来传输有效载荷，索引分别为0,1,...,7，每个RU上有8个DMRS，索引分别为0,1,...,7，每个前导与一个资源集合关联，一个资源集合包括一个RU和一个DMRS。可以看到，所有前导与资源集合之间存在关联关系。
然后，UE根据将要使用的前导和所获取的前导与资源集合的关联关系确定将要传输的内容。具体地，UE根据前导与资源集合的关联关系确定将要使用的前导是否满足第一预设规则。如果是，则UE确定其将要传输的内容为msgA。其中，msgA包括将要使用的前导和有效载荷，或者msgA包括有效载荷。否则，UE确定其将要传输的内容为将要使用的前导。
UE根据前导与资源集合的关联关系确定将要使用的前导是否满足第一预设规则，包括以下方式，例如：
(1)方式一：UE根据前导与资源集合的关联关系确定将要使用的前导是否属于与一个资源集合关联的前导中的指定前导之一。如果是，则满足第一预设规则，UE确定其将要传输的内容为msgA。否则，不满足第一预设规则，UE确定其将要传输的内容即为将要使用的前导。
例如，假设第一预设规则为与一个资源集合关联的前导中的第1个前导，本示例中，每个前导与一个资源集合关联，因此，可以认为每个前导均满足第一预设规则，那么，UE确定其将要传输的内容为msgA。
(2)方式二：UE根据前导与资源集合的关联关系获取第四前导集合，如果将要使用的前导包含在该第三前导集合中，则满足第一预设规则，UE确定其将要传输的内容为msgA。否则，不满足第一预设规则，UE确定其将要传输的内容即为将要使用的前导。
例如，UE根据前导与资源集合的关联关系，获取与每个RU上前2个DMRS关联的前导，将这些前导作为第四前导集合中的前导，最终得到第四前导集合，即{前导0,前导1,前导8,前导9,...,前导56,前导57}。可以看到，前导1包含在第四前导集合中，因此，UE确定其将要传输的内容为msgA。
再如，UE根据前导与资源集合的关联关系，获取与每个RU上第1个DMRS关联的前导，将这个前导作为第四前导集合中的前导，最终得到第四前导集合，即{前导0,前导8,...,前导56}。可以看到，前导1并不包含在第四前导集合中，因此，UE确定其将要传输的内容为将要使用的前导，即前导1。
然后，UE发送将要传输的内容。
本应用示例中，前导与资源集合的关联关系还可以是一部分前导与资源集合的关联关系，那么，UE根据前导与资源集合的关联关系确定将要使用的前导是否满足第一预设规则，具体可以根据前导与资源集合的关联关系确定将要使用的前导是否与至少一个资源集合之间存在关联关系。如果是，则认为满足第一预设规则，那么，UE确定其将要传输的内容为msgA。否则，认为不满足第一预设规则，那么，UE确定其将要传输的内容即为将要使用的前导。
图19为本申请一实施例的传输装置的结构示意图。如图19所示，该装置可以包括：第一获取模块1701，用于获取第一索引；第二获取模块1702，用于获取第一信息；第一确定模块1703，用于根据所述第一信息确定所述第一索引满足第一预设规则，则确定将要传输的内容包括第一消息。
在一种实施方式中，所述第一信息包括索引与DMRS的关联关系，所述第一确定模块用于根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述索引与DMRS的关联关系确定所述第一索引属于与一个DMRS关联的索引中的指定索引之一；或者根据所述索引与DMRS的关联关系确定所述第一索引属于第一索引集合，其中，所述第一索引集合是根据所述索引与DMRS的关联关系获取的；或者根据所述索引与DMRS的关联关系确定所述第一索引与至少一个DMRS存在关联关系；或者根据所述索引与DMRS的关联关系确定与所述第一索引关联的DMRS是可用的。
其中，所述第一索引集合是根据所述索引与DMRS的关联关系获取的，包括：根据所述索引与DMRS的关联关系，获取与指定DMRS中的每个DMRS关联的M个索引中的N个索引，将所述N个索引作为所述第一索引集合中的索引，得到所述第一索引集合，其中，M为整数，N为整数，N小于或等于M。
在一种实施方式中，所述第一信息包括索引与有效载荷传输资源的关联关 系，所述第一确定模块用于根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述索引与有效载荷传输资源的关联关系确定所述第一索引属于与一个有效载荷传输资源关联的索引中的指定索引之一；或者根据所述索引与有效载荷传输资源的关联关系确定所述第一索引属于第二索引集合，其中，所述第二索引集合是根据所述索引与有效载荷传输资源的关联关系获取的；或者根据所述索引与有效载荷传输资源的关联关系确定所述第一索引与至少一个有效载荷传输资源存在关联关系；或者根据所述索引与有效载荷传输资源的关联关系确定与所述第一索引关联的有效载荷传输资源是可用的。
其中，所述第二索引集合是根据所述索引与有效载荷传输资源的关联关系获取的，包括：根据所述索引与有效载荷传输资源的关联关系，获取与指定传输资源中的每个传输资源关联的P个索引中的Q个索引，将所述Q个索引作为所述第二索引集合中的索引，得到所述第二索引集合，其中，P为整数，Q为整数，Q小于或等于P。
在一种实施方式中，所述第一信息包括前导传输资源与有效载荷传输资源的关联关系，所述第一确定模块用于根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引对第一指定值取余数等于第二指定值；或者根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引与索引数量之比位于指定取值范围内；或者根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引属于第三索引集合，其中，所述第三索引集合是根据所述前导传输资源与有效载荷传输资源的关联关系获取的；或者根据所述前导传输资源与有效载荷传输资源的关联关系确定与第一前导传输资源关联的有效载荷传输资源是可用的，其中，所述第一前导传输资源用于传输所述第一索引指示的序列。
其中，所述第一指定值是根据前导传输资源与有效载荷传输资源的关联关系确定的，或者是预设的，或者是根据有效载荷传输采用的码率或MCS确定的。
其中，所述第二指定值可以为0、或前导传输资源索引、或根据与一个有效载荷传输资源关联的前导传输资源的数量或索引确定。
其中，所述指定取值范围是根据前导传输资源与有效载荷传输资源的关联关系确定的，或者是预设的，或者是根据有效载荷传输采用的码率或MCS确定的。
其中，所述第三索引集合是根据所述前导传输资源与有效载荷传输资源的关联关系获取的，包括：根据前导传输资源与有效载荷传输资源的关联关系，得到与每个有效载荷传输资源关联的前导传输资源，以及可用的索引，将所述 可用的索引中的指定索引作为所述第三索引集合中的索引，得到第三索引集合。
在一种实施方式中，所述第一信息包括索引与有效载荷传输资源以及DMRS的关联关系，所述第一确定模块用于根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索引属于与一个资源集合关联的索引中的指定索引之一；或者根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索引属于第四索引集合，其中，所述第四索引集合是根据所述索引与有效载荷传输资源以及DMRS的关联关系获取的；或者根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索引与至少一个资源集合存在关联关系；或者根据所述索引与有效载荷传输资源以及DMRS的关联关系确定与所述第一索引关联的资源集合是可用的；其中，所述资源集合由指定的有效载荷传输资源和指定的DMRS构成。
其中，所述第四索引集合是根据所述索引与有效载荷传输资源以及DMRS的关联关系获取的，包括：根据所述索引与有效载荷传输资源以及DMRS的关联关系，获取与指定资源集合中的每个资源集合关联的S个索引中的T个索引，将所述T个索引作为所述第四索引集合中的索引，得到所述第四索引集合，其中，所述资源集合由指定的有效载荷传输资源和指定的DMRS构成，S为整数，T为整数，T小于或等于S。
在一种实施方式中，所述第一信息包括第五索引集合，所述第一确定模块用于根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述第五索引集合确定所述第一索引属于所述第五索引集合。
在一种实施方式中，如图20所示，该装置还包括：第二确定模块1704，用于根据所述第一信息确定所述第一索引不满足第一预设规则，则确定将要传输的内容为所述第一索引指示的序列。
在一种实施方式中，所述第一消息包括：所述第一索引指示的序列和有效载荷，或者，所述有效载荷。
在一种实施方式中，该装置还包括：传输模块1705，用于传输所述将要传输的内容。
图21为本申请一实施例的传输装置的结构示意图。如图21所示，该装置可以包括：检测模块1901，用于进行序列检测，获取检测到的序列；第三获取模块1902，用于获取第一信息；第三确定模块1903，用于根据所述第一信息确定所述检测到的序列满足第一预设规则，则确定将要接收检测的传输内容包括 有效载荷。
在一种实施方式中，所述第一信息包括以下至少一种：索引与DMRS的关联关系；索引与有效载荷传输资源的关联关系；前导传输资源与有效载荷传输资源的关联关系；索引与有效载荷传输资源以及DMRS的关联关系；索引集合。
本申请实施例各装置中的各模块的功能可以参见上述方法实施例中的对应描述，在此不再赘述。
图22为本申请实施例的终端的结构示意图，如图22所示，本申请实施例提供的终端130包括：存储器1303与处理器1304。所述终端130还可以包括接口1301和总线1302。所述接口1301、存储器1303与处理器1304通过总线1302相连接。所述存储器1303用于存储指令。所述处理器1304被配置为读取所述指令以执行上述应用于终端的方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
图23为本申请实施例的基站的结构示意图，如图23所示，本申请实施例提供的基站140包括：存储器1403与处理器1404。所述基站还可以包括接口1401和总线1402。所述接口1401、存储器1403与处理器1404通过总线1402相连接。所述存储器1403用于存储指令。所述处理器1404被配置为读取所述指令以执行上述应用于基站的方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
图24为本申请实施例的通信系统的结构示意图，如图24所示，该系统包括：如上述实施例的终端130、以及上述实施例的基站140。本申请实施例的通信系统包括但不限于：长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、或5G系统等。
以上所述，仅为本申请的示例性实施例而已，并非用于限定本申请的保护范围。
一般来说，本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如，一些方面可以被实现在硬件中，而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中，尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现，例如在处理器实体中，或者通过硬件，或者通过软件和硬件的组合。计算 机程序指令可以是汇编指令、指令集架构(ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤，或者可以表示相互连接的逻辑电路、模块和功能，或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现。本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存等。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。RAM可以包括多种形式，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。本申请描述的系统和方法的存储器包括但不限于这些和任意其它适合类型的存储器。
本申请实施例的处理器可以是任何适合于本地技术环境的类型，例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程逻辑器件(Field－Programmable Gate Array，FGPA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件、或者基于多核处理器架构的处理器。通用处理器可以是微处理器或者也可以是任何常规的处理器等。上述的处理器可以实现或者执行本申请实施例中的公开的各方法的步骤。软件模块可以位于随机存储器、闪存、只读存储器、可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。

Claims (28)

  1. 一种传输方法，包括：
    获取第一索引；
    获取第一信息；
    根据所述第一信息确定所述第一索引满足第一预设规则，则确定将要传输的内容包括第一消息。
  2. 根据权利要求1所述的方法，其中，所述第一信息包括索引与解调参考信号DMRS的关联关系，所述根据所述第一信息确定所述第一索引满足第一预设规则，包括：
    根据所述索引与DMRS的关联关系确定所述第一索引属于与一个DMRS关联的索引中的指定索引之一；或者
    根据所述索引与DMRS的关联关系确定所述第一索引属于第一索引集合，其中，所述第一索引集合是根据所述索引与DMRS的关联关系获取的；或者
    根据所述索引与DMRS的关联关系确定所述第一索引与至少一个DMRS存在关联关系；或者
    根据所述索引与DMRS的关联关系确定与所述第一索引关联的DMRS是可用的。
  3. 根据权利要求2所述的方法，其中，所述第一索引集合是通过如下方式根据所述索引与DMRS的关联关系获取的：
    根据所述索引与DMRS的关联关系，获取与指定DMRS中的每个DMRS关联的M个索引中的N个索引，将所述N个索引作为所述第一索引集合中的索引，得到所述第一索引集合，其中，M为整数，N为整数，N小于或等于M。
  4. 根据权利要求1所述的方法，其中，所述第一信息包括索引与有效载荷传输资源的关联关系，所述根据所述第一信息确定所述第一索引满足第一预设规则，包括：
    根据所述索引与有效载荷传输资源的关联关系确定所述第一索引属于与一个有效载荷传输资源关联的索引中的指定索引之一；或者
    根据所述索引与有效载荷传输资源的关联关系确定所述第一索引属于第二索引集合，其中，所述第二索引集合是根据所述索引与有效载荷传输资源的关联关系获取的；或者
    根据所述索引与有效载荷传输资源的关联关系确定所述第一索引与至少一个有效载荷传输资源存在关联关系；或者
    根据所述索引与有效载荷传输资源的关联关系确定与所述第一索引关联的有效载荷传输资源是可用的。
  5. 根据权利要求4所述的方法，其中，所述第二索引集合是通过如下方式根据所述索引与有效载荷传输资源的关联关系获取的：
    根据所述索引与有效载荷传输资源的关联关系，获取与指定传输资源中的每个传输资源关联的P个索引中的Q个索引，将所述Q个索引作为所述第二索引集合中的索引，得到所述第二索引集合，其中，P为整数，Q为整数，Q小于或等于P。
  6. 根据权利要求1所述的方法，其中，所述第一信息包括前导传输资源与有效载荷传输资源的关联关系，所述根据所述第一信息确定所述第一索引满足第一预设规则，包括：
    根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引对第一指定值取余数等于第二指定值；或者
    根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引与索引数量之比位于指定取值范围内；或者
    根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引属于第三索引集合，其中，所述第三索引集合是根据所述前导传输资源与有效载荷传输资源的关联关系获取的；或者
    根据所述前导传输资源与有效载荷传输资源的关联关系确定与第一前导传输资源关联的有效载荷传输资源是可用的，其中，所述第一前导传输资源用于传输所述第一索引指示的序列。
  7. 根据权利要求6所述的方法，其中，所述第三索引集合是通过如下方式根据所述前导传输资源与有效载荷传输资源的关联关系获取的：
    根据所述前导传输资源与有效载荷传输资源的关联关系，得到与每个有效载荷传输资源关联的前导传输资源，以及可用的索引，将所述可用的索引中的指定索引作为所述第三索引集合中的索引，得到所述第三索引集合。
  8. 根据权利要求1所述的方法，其中，所述第一信息包括索引与有效载荷传输资源以及DMRS的关联关系，所述根据所述第一信息确定所述第一索引满足第一预设规则，包括：
    根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索引属于与一个资源集合关联的索引中的指定索引之一；或者
    根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索 引属于第四索引集合，其中，所述第四索引集合是根据所述索引与有效载荷传输资源以及DMRS的关联关系获取的；或者
    根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索引与至少一个资源集合存在关联关系；或者，
    根据所述索引与有效载荷传输资源以及DMRS的关联关系确定与所述第一索引关联的资源集合是可用的；
    其中，所述资源集合由指定的有效载荷传输资源和指定的DMRS构成。
  9. 根据权利要求8所述的方法，其中，所述第四索引集合是通过如下方式根据所述索引与有效载荷传输资源以及DMRS的关联关系获取的：
    根据所述索引与有效载荷传输资源以及DMRS的关联关系，获取与指定资源集合中的每个资源集合关联的S个索引中的T个索引，将所述T个索引作为所述第四索引集合中的索引，得到所述第四索引集合，其中，所述资源集合由指定的有效载荷传输资源和指定的DMRS构成，S为整数，T为整数，T小于或等于S。
  10. 根据权利要求1所述的方法，其中，所述第一信息包括第五索引集合，所述根据所述第一信息确定所述第一索引满足第一预设规则，包括：根据所述第五索引集合确定所述第一索引属于所述第五索引集合。
  11. 根据权利要求1所述的方法，还包括：
    根据所述第一信息确定所述第一索引不满足第一预设规则，则确定将要传输的内容为所述第一索引指示的序列。
  12. 根据权利要求1至11中任一项所述的方法，其中，所述第一消息包括：所述第一索引指示的序列，以及有效载荷，或者，所述有效载荷。
  13. 根据权利要求1至11中任一项所述的方法，还包括：
    传输所述将要传输的内容。
  14. 一种传输方法，包括：
    进行序列检测，获取检测到的序列；
    获取第一信息；
    根据所述第一信息确定所述检测到的序列满足第一预设规则，则确定将要接收检测的传输内容包括有效载荷。
  15. 根据权利要求14所述的方法，其中，所述第一信息包括以下至少一种：
    索引与解调参考信号DMRS的关联关系；
    索引与有效载荷传输资源的关联关系；
    前导传输资源与有效载荷传输资源的关联关系；
    索引与有效载荷传输资源以及DMRS的关联关系；
    索引集合。
  16. 一种传输装置，包括：
    第一获取模块，设置为获取第一索引；
    第二获取模块，设置为获取第一信息；
    第一确定模块，设置为根据所述第一信息确定所述第一索引满足第一预设规则，则确定将要传输的内容包括第一消息。
  17. 根据权利要求16所述的装置，其中，所述第一信息包括索引与DMRS的关联关系，所述第一确定模块是设置为：
    根据所述索引与DMRS的关联关系确定所述第一索引属于与一个DMRS关联的索引中的指定索引之一；或者
    根据所述索引与DMRS的关联关系确定所述第一索引属于第一索引集合，其中，所述第一索引集合是根据所述索引与DMRS的关联关系获取的；或者
    根据所述索引与DMRS的关联关系确定所述第一索引与至少一个DMRS存在关联关系；或者
    根据所述索引与DMRS的关联关系确定与所述第一索引关联的DMRS是可用的。
  18. 根据权利要求16所述的装置，其中，所述第一信息包括索引与有效载荷传输资源的关联关系，所述第一确定模块是设置为：
    根据所述索引与有效载荷传输资源的关联关系确定所述第一索引属于与一个有效载荷传输资源关联的索引中的指定索引之一；或者
    根据所述索引与有效载荷传输资源的关联关系确定所述第一索引属于第二索引集合，其中，所述第二索引集合是根据所述索引与有效载荷传输资源的关联关系获取的；或者
    根据所述索引与有效载荷传输资源的关联关系确定所述第一索引与至少一个有效载荷传输资源存在关联关系；或者
    根据所述索引与有效载荷传输资源的关联关系确定与所述第一索引关联的有效载荷传输资源是可用的。
  19. 根据权利要求16所述的装置，其中，所述第一信息包括前导传输资源与有效载荷传输资源的关联关系，所述第一确定模块是设置为：
    根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引对第一指定值取余数等于第二指定值；或者
    根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引与索引数量之比位于指定取值范围内；或者
    根据所述前导传输资源与有效载荷传输资源的关联关系确定所述第一索引属于第三索引集合，其中，所述第三索引集合是根据所述前导传输资源与有效载荷传输资源的关联关系获取的；或者
    根据所述前导传输资源与有效载荷传输资源的关联关系确定与第一前导传输资源关联的有效载荷传输资源是可用的，其中，所述第一前导传输资源用于传输所述第一索引指示的序列。
  20. 根据权利要求16所述的装置，其中，所述第一信息包括索引与有效载荷传输资源以及DMRS的关联关系，所述第一确定模块是设置为：
    根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索引属于与一个资源集合关联的索引中的指定索引之一；或者
    根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索引属于第四索引集合，其中，所述第四索引集合是根据所述索引与有效载荷传输资源以及DMRS的关联关系获取的；或者
    根据所述索引与有效载荷传输资源以及DMRS的关联关系确定所述第一索引与至少一个资源集合存在关联关系；或者，
    根据所述索引与有效载荷传输资源以及DMRS的关联关系确定与所述第一索引关联的资源集合是可用的；
    其中，所述资源集合由指定的有效载荷传输资源和指定的DMRS构成。
  21. 根据权利要求16所述的装置，其中，所述第一信息包括第五索引集合，所述第一确定模块是设置为：根据所述第五索引集合确定所述第一索引属于所述第五索引集合。
  22. 根据权利要求16所述的装置，还包括：
    第二确定模块，设置为根据所述第一信息确定所述第一索引不满足第一预设规则，则确定将要传输的内容为所述第一索引指示的序列。
  23. 根据权利要求16至22中任一项所述的装置，其中，所述第一消息包括：所述第一索引指示的序列，以及有效载荷，或者，所述有效载荷。
  24. 根据权利要求16至22中任一项所述的装置，还包括：
    传输模块，设置为传输所述将要传输的内容。
  25. 一种传输装置，包括：
    检测模块，设置为进行序列检测，获取检测到的序列；
    获取模块，设置为获取第一信息；
    确定模块，设置为根据所述第一信息确定所述检测到的序列满足第一预设规则，则确定将要接收检测的传输内容包括有效载荷。
  26. 根据权利要求25所述的装置，其中，所述第一信息包括以下至少一种：
    索引与解调参考信号DMRS的关联关系；
    索引与有效载荷传输资源的关联关系；
    前导传输资源与有效载荷传输资源的关联关系；
    索引与有效载荷传输资源以及DMRS的关联关系；
    索引集合。
  27. 一种终端，包括：处理器及存储器；
    所述存储器设置为存储指令；
    所述处理器被配置为读取所述指令以执行如权利要求1至13中任一所述的方法。
  28. 一种基站，包括：处理器及存储器；
    所述存储器设置为存储指令；
    所述处理器被配置为读取所述指令以执行如权利要求14至15中任一所述的方法。
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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118201126A (zh) * 2019-03-29 2024-06-14 中兴通讯股份有限公司 传输方法、装置、终端、基站、通信系统及存储介质
US11540258B2 (en) * 2019-07-31 2022-12-27 Qualcomm Incorporated Construction and mapping of compact uplink control information (UCI) over physical uplink shared channel (PUSCH)
WO2021134636A1 (zh) * 2019-12-31 2021-07-08 华为技术有限公司 随机接入方法及通信装置
EP4090120A4 (en) 2020-01-17 2023-01-04 Guangdong Oppo Mobile Telecommunications Corp., Ltd. CONFIGURATION PROCEDURE FOR MSG-A RESOURCES WITH TWO-LEVEL RIGHT ACCESS AND ASSOCIATED DEVICE
WO2021093205A1 (en) * 2020-02-13 2021-05-20 Zte Corporation Transmission of preamble and payload messages in random access procedures
CN111328152B (zh) * 2020-02-27 2021-11-12 北京邮电大学 两步随机接入中MsgA的资源配置和传输方法
US12238763B2 (en) 2020-04-08 2025-02-25 Apple Inc. MsgA PUSCH validation
CN113543354B (zh) * 2020-04-14 2022-08-26 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置
WO2022120854A1 (zh) * 2020-12-11 2022-06-16 北京小米移动软件有限公司 信息传输方法、装置、通信设备和存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104981022A (zh) * 2014-04-04 2015-10-14 北京三星通信技术研究有限公司 数据传输的方法、基站及终端
CN109328484A (zh) * 2016-06-24 2019-02-12 高通股份有限公司 基于多个上行链路准许的随机接入冲突减少
CN110536475A (zh) * 2019-03-29 2019-12-03 中兴通讯股份有限公司 传输方法、装置、终端、基站、通信系统及存储介质

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017166255A1 (zh) * 2016-03-31 2017-10-05 华为技术有限公司 发送物理随机接入信道prach的方法、设备及系统
EP3471479B1 (en) * 2017-06-16 2022-08-03 LG Electronics Inc. Method for transreceiving downlink channel and apparatus for same
US11343783B2 (en) * 2017-06-16 2022-05-24 Lg Electronics Inc. Method and apparatus for transmitting and receiving synchronization signal block
WO2019022577A1 (ko) * 2017-07-28 2019-01-31 엘지전자 주식회사 방송 채널을 송수신하는 방법 및 이를 위한 장치
JP7335226B2 (ja) * 2017-07-28 2023-08-29 エルジー エレクトロニクス インコーポレイティド 同期信号ブロックを送受信する方法及びそのための装置
WO2019022575A1 (ko) * 2017-07-28 2019-01-31 엘지전자 주식회사 동기 신호 블록을 송수신하는 방법 및 이를 위한 장치
JP7075492B2 (ja) * 2018-02-01 2022-05-25 テレフオンアクチーボラゲット エルエム エリクソン（パブル） Ｓｕｂ－ｐｒｂ送信のためのサブキャリアを選択するためのシステムと方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104981022A (zh) * 2014-04-04 2015-10-14 北京三星通信技术研究有限公司 数据传输的方法、基站及终端
CN109328484A (zh) * 2016-06-24 2019-02-12 高通股份有限公司 基于多个上行链路准许的随机接入冲突减少
CN110536475A (zh) * 2019-03-29 2019-12-03 中兴通讯股份有限公司 传输方法、装置、终端、基站、通信系统及存储介质

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
HUAWEI ET AL.: "Channel structure for 2-step RACH", 3GPP TSG RAN WG1 MEETING #96 R1-1903056, 1 March 2019 (2019-03-01), XP051600752 *
See also references of EP3952582A4
ZTE ET AL.: "Considerations on the channel structure of msgA", 3GPP TSG RAN WG1 MEETING #96 R1-1901626, 1 March 2019 (2019-03-01), XP051599323 *
ZTE: "Summary of 7.2.1.1 Channel Structure for Two-Step RACH", 3GPP TSG RAN WG1 MEETING #96 R1-1903435, 1 March 2019 (2019-03-01), XP051690819 *

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