WO2024094011A1 - 通信方法、装置及终端 - Google Patents
通信方法、装置及终端 Download PDFInfo
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- WO2024094011A1 WO2024094011A1 PCT/CN2023/128585 CN2023128585W WO2024094011A1 WO 2024094011 A1 WO2024094011 A1 WO 2024094011A1 CN 2023128585 W CN2023128585 W CN 2023128585W WO 2024094011 A1 WO2024094011 A1 WO 2024094011A1
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- terminal
- downlink transmission
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0457—Variable allocation of band or rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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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
- H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- 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
Definitions
- the present application belongs to the field of wireless communication technology, and specifically relates to a communication method, device and terminal.
- R18 discloses that the maximum bandwidth capability of the RedCap terminal in Frequency Range 1 (FR1) is only 5MHz, which will result in the RedCap terminal having lower terminal capability.
- the embodiments of the present application provide a communication method, device and terminal, which can ensure that the RedCap terminal implements a normal communication process and thus ensure the communication quality.
- a communication method wherein a terminal processes a target transmission according to a bandwidth capability; wherein the bandwidth capability of the terminal is a predetermined value, the predetermined value is less than or equal to 5 MHz, and the target transmission includes a first downlink transmission and/or a first uplink transmission.
- a communication device comprising: a processing module, configured to process a target transmission according to a bandwidth capability; wherein the bandwidth capability of the terminal is a predetermined value, the predetermined value is less than or equal to 5 MHz, and the target transmission comprises a first downlink transmission and/or a first uplink transmission.
- a terminal comprising a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.
- a terminal comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.
- a communication system including: a terminal and a network side device, wherein the terminal can be used to perform the following steps: The steps of the method described in the first aspect.
- a readable storage medium on which a program or instruction is stored.
- the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.
- a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.
- a computer program product/program product is provided, wherein the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the steps of the method described in the first aspect.
- the terminal relaxes the restrictions on network-side scheduling/configuration by processing the target transmission according to its own bandwidth capability, thereby ensuring that the terminal implements a normal communication process and thereby ensuring the communication quality.
- FIG1 is a schematic diagram of the structure of a wireless communication system provided by an exemplary embodiment of the present application.
- FIG2 is a flow chart of a communication method according to an exemplary embodiment of the present application.
- FIG3 is a second flow chart of a communication method provided by an exemplary embodiment of the present application.
- FIG4 is a third flow chart of a communication method provided by an exemplary embodiment of the present application.
- FIG5 is a schematic diagram of the structure of a communication device provided by an exemplary embodiment of the present application.
- FIG. 6 is a schematic diagram of the structure of a terminal provided by an exemplary embodiment of the present application.
- first, second, etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by “first” and “second” are generally of the same type, and the number of objects is not limited.
- the first object can be one or more.
- “and/or” in the specification and claims represents at least one of the connected objects, and the character “/" generally represents that the objects associated with each other are in an "or” relationship.
- LTE Long Term Evolution
- LTE-A Long Term Evolution-Advanced
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single-carrier Frequency-Division Multiple Access
- NR New Radio
- 6G 6th Generation
- FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application.
- the wireless communication system includes a terminal 11 and a network-side device 12.
- the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-Mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR)/virtual reality (Virtual Reality, VR) device , robots, wearable devices (Wearable Device), vehicle user equipment (VUE), pedestrian user equipment (PUE), smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), game consoles, personal computers (Personal Computer, PC), ATMs or self-service machines and other terminal side devices, wearable devices include: smart watches, smart bracelet
- the network side device 12 may include access network equipment or core network equipment, wherein the access network equipment may also be called wireless access network equipment, wireless access network (Radio Access Network, RAN), wireless access network function or wireless access network unit.
- the access network equipment may include a base station, a wireless local area network (WLAN) access point (AS) or a wireless fidelity (WiFi) node, etc.
- WLAN wireless local area network
- WiFi wireless fidelity
- the base station may be called a Node B (NB), an evolved Node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B (Home evolved Node B), a transmission reception point (TRP) or some other appropriate term in the field.
- NB Node B
- eNB evolved Node B
- BTS basic service set
- ESS extended service set
- HNB home Node B
- HNB home evolved Node B
- TRP transmission reception point
- FIG. 2 it is a flow chart of a communication method 200 provided by an exemplary embodiment of the present application, which can be, but is not limited to, executed by a terminal, and specifically can be executed by hardware and/or software installed in the terminal.
- the method 200 can at least include the following steps.
- the terminal processes the target transmission according to the bandwidth capability.
- the bandwidth capability of the terminal can be understood as the ability of the terminal to process signals or the baseband to process data.
- the bandwidth capability of the terminal is a predetermined value, which is less than or equal to 5MHz, such as 5MHz, 4MHz, etc. That is, the terminal mentioned in this embodiment is a RedCap terminal, such as R18 RedCap terminal in, etc.
- the bandwidth capability of the terminal is 5 MHz
- the bandwidth capability of 5 MHz can also be understood as: for a subcarrier spacing (SCS) of 15 KHz, the frequency domain resources are 25 or 28 or 27 physical resource blocks (PRBs); for a SCS of 30 KHz, the frequency domain resources are 11 or 12 or 13 or 14 PRBs.
- SCS subcarrier spacing
- PRBs physical resource blocks
- the target transmission includes a first downlink transmission and/or a first uplink transmission.
- the first downlink transmission and the first uplink transmission may be independent of each other, or the first uplink transmission may be scheduled by the first downlink transmission, which is not limited here.
- the first downlink transmission and the first uplink transmission described in this embodiment may be initial transmission or retransmission.
- the first downlink transmission may include an initial transmission and/or retransmission of message 2 (message 2, MSG 2)
- the first uplink transmission may include first feedback information and/or an initial transmission or retransmission of MSG 3, and the MSG 3 is scheduled by MSG 2 or target downlink control information (Downlink Control Information, DCI).
- DCI Downlink Control Information
- the target DCI may be a DCI scrambled by a temporary cell radio network temporary identifier (TC-RNTI) or a cell (Cell, C)-RNTI, etc., which is not limited here.
- TC-RNTI temporary cell radio network temporary identifier
- Cell, C cell-RNTI
- the frequency domain resource allocation (FDRA) field in the target DCI may indicate that the total frequency domain resources of MSG 3 (such as retransmitted MSG 3) do not exceed a predetermined value.
- the first feedback information corresponds to MSG 4, such as the first feedback information is feedback information of a hybrid automatic repeat request acknowledgment (HARQ-ACK) scheduled by MSG 4.
- HARQ-ACK hybrid automatic repeat request acknowledgment
- the first downlink transmission may be an initial transmission and/or retransmission of MSG B, and the first uplink transmission includes MSG A and/or second feedback information.
- the second feedback information corresponds to the MSG B, such as the second feedback information is feedback information of HARQ-ACK scheduled by MSG B.
- the first uplink transmission includes a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) based on a configured grant (Configured Grant, CG) and/or a PUSCH based on a random access (Random Access, RA).
- PUSCH Physical Uplink Shared Channel
- CG configured Grant
- RA Random Access
- the terminal relaxes the restrictions on network-side scheduling/configuration by processing the target transmission according to its own bandwidth capability, such as allowing the frequency domain resources used for the target transmission to exceed or not exceed the bandwidth capability of the terminal, thereby ensuring that the terminal can achieve a normal communication process and thus ensure the communication quality.
- FIG. 3 it is a flow chart of a communication method 300 provided by an exemplary embodiment of the present application, and the method can be, but is not limited to, executed by a terminal, and specifically can be executed by hardware and/or software installed in the terminal.
- the method 300 can at least include the following steps.
- the terminal processes the target transmission according to the bandwidth capability.
- the bandwidth capability of the terminal is a predetermined value, the predetermined value is less than or equal to 5 MHz, and the target transmission Includes a first downlink transmission and/or a first uplink transmission.
- the terminal processes the target transmission according to the bandwidth capability, including at least one of the following methods 1-6.
- Mode 1 It is expected that the size of the total frequency domain resources used for the first downlink transmission does not exceed the predetermined value.
- the “expectation" mentioned in method 1 and subsequent embodiments can be understood as: the network side equipment cannot guarantee whether the frequency domain resources used for downlink transmission and the total frequency domain resources scheduled or configured for uplink transmission do not exceed the predetermined value.
- the network side device may use frequency domain resources exceeding the predetermined value to transmit the first downlink transmission, or may use frequency domain resources not exceeding the predetermined value to transmit the first downlink transmission, that is, for method 1, the network side device cannot guarantee the use of frequency domain resources not exceeding the predetermined value to transmit the first downlink transmission.
- Mode 2 It is not expected that the size of the total frequency domain resources used by the first downlink transmission exceeds the predetermined value.
- the network side device ensures that the frequency domain resources used for downlink transmission and the total frequency domain resources scheduled or configured for uplink transmission do not exceed the predetermined value.
- the network side device when the terminal does not expect the size of the total frequency domain resources used for the first downlink transmission to exceed the predetermined value, the network side device cannot use frequency domain resources exceeding the predetermined value for the first downlink transmission, that is, for Mode 2, the network side device ensures that the first downlink transmission is transmitted using frequency domain resources not exceeding the predetermined value.
- Mode 3 When the size of the total frequency domain resources used for the first downlink transmission exceeds the predetermined value, perform the first operation.
- Method 3 can be understood as: the terminal processes the first downlink transmission according to the total frequency domain resources used by the first downlink transmission and the bandwidth capability of the terminal. Based on this, the implementation process of Method 3 is explained below in combination with different implementation methods, as follows.
- the terminal demodulates the first downlink transmission and performs at least one of the following (11)-(15).
- time unit mentioned in the above and below questions of this application can be a symbol, a time slot, a sub-time slot, etc., and is not limited here.
- the second uplink transmission is an uplink transmission scheduled by the first downlink transmission.
- the first number of the first downlink transmissions includes an initial transmission and/or repeated transmission of the first downlink transmission. For example, when the first number is 1, the first downlink transmission is an initial transmission, and when the first number is an integer greater than 1, the first downlink transmission includes an initial transmission and at least one repeated transmission.
- the first number may be predetermined by a protocol or implemented by a network configuration, and is not limited here.
- the first time threshold mentioned in this embodiment can be understood as the minimum time capability required for the terminal to complete the first downlink transmission and prepare for the second uplink transmission.
- the first time threshold can be implemented by protocol agreement or high-level configuration, or it can be determined based on the first reference time and the time required for the terminal to process the downlink transmission on the first designated frequency domain resource, and the first designated frequency domain resource is determined based on the resource difference between the total frequency domain resource used by the first downlink transmission and the predetermined value.
- the first designated frequency domain resource is (N1-5)MHz
- the first time threshold is determined based on the first reference time and the processing time required for the terminal to process the frequency domain resource of (N1-5)MHz.
- the first time threshold Tmin can be expressed as shown in the following formula (1).
- T1 is the first reference time, which may be predetermined by the protocol.
- T1 NT,1 + NT,2 + 0.5 milliseconds
- N1 is the total frequency domain resource used by the first downlink transmission
- M is the predetermined value
- NT,1 is the N1 time units corresponding to the processing time of the PDSCH of the terminal processing capability 1 when an additional physical downlink shared channel (PDSCH) demodulation reference signal (DM-RS) is configured.
- the duration, NT,2 is the duration of N2 time units corresponding to the PUSCH processing time of the terminal processing capability 1 when the additional physical uplink shared channel PUSCH DM-RS is configured.
- the processing time requirements for terminals with limited baseband bandwidth capability (i.e., RedCap) during the communication process are relaxed (such as the first time threshold is greater than the minimum requirement for other terminal processing time in R18), and the restrictions on network-side scheduling/configuration of frequency domain resources are relaxed, so that all terminal types can share the resource allocation of the first downlink transmission, and the feasibility and reliability of terminal behavior with limited baseband bandwidth capability are ensured.
- the second number of the first downlink transmission includes the initial transmission and/or repeated transmission of the first downlink transmission.
- the first downlink transmission is the initial transmission.
- the second number is an integer greater than 1
- the first downlink transmission includes the initial transmission and at least one repeated transmission.
- the second number can be predetermined by the protocol or implemented by the network configuration, and is not limited here.
- the terminal is not required to demodulate the first downlink transmission. (21) can be understood as the terminal can demodulate or not demodulate the first downlink transmission.
- the terminal determines whether to demodulate the first downlink transmission.
- the terminal can determine whether to demodulate based on implementation information.
- the implementation information of the terminal can be the demodulation information of the first downlink transmission preset in the terminal when leaving the factory (such as demodulation or not), or it can be the communication process information initiated by the terminal, etc., which is not limited here.
- the demodulation information of the first downlink transmission preset in the terminal may be that when the total amount of frequency domain resources used by the first downlink transmission is greater than the predetermined value, the terminal demodulates or does not demodulate the first downlink transmission according to the preset demodulation information of the first downlink transmission, and there is no limitation here.
- the communication process initiated by the terminal may be a random access process, etc.
- the terminal demodulates the first downlink transmission.
- the restrictions on the scheduling/configuration of network-side equipment are relaxed (such as allowing the frequency domain resources used by the first downlink transmission to exceed the bandwidth capability of the terminal (such as 5MHz), allowing the time for scheduling uplink transmission to not meet the minimum requirements of the terminal processing time defined in R18).
- the above implementation method further relaxes the requirement for terminal processing time with limited baseband bandwidth capability by setting the first time threshold, thereby improving the flexibility of the entire communication network from both the network side and the terminal side.
- Mode 4 It is expected that the size of the total frequency domain resources configured or scheduled for the first uplink transmission does not exceed the predetermined value.
- Mode 5 It is not expected that the size of the total frequency domain resources configured or scheduled for the first uplink transmission exceeds the predetermined value.
- Method 4 and Method 5 please refer to the relevant descriptions in the aforementioned Method 1 and Method 2, which will not be repeated here.
- Mode 6 When the size of the total frequency domain resources configured or scheduled for the first uplink transmission exceeds the predetermined value, the terminal performs a second operation.
- Mode 6 can be understood as: the terminal processes the first uplink transmission according to the total frequency domain resources used by the first uplink transmission and the bandwidth capability of the terminal. Based on this, the implementation process of Mode 6 is described below, as follows.
- the terminal When the size of the total frequency domain resources configured or scheduled for the first uplink transmission exceeds the predetermined value, the terminal performs at least one of the following (31)-(34).
- the first uplink transmission is an uplink transmission scheduled by the second downlink transmission.
- the random access process corresponding to the first uplink transmission has failed.
- determine that the random access process corresponding to the first uplink transmission has failed including: when the first uplink transmission is a third number and the third number of first uplink transmissions are scheduled by a third number of second downlink transmissions received continuously, determine that the random access process corresponding to the first uplink transmission has failed; wherein the third number of second downlink transmissions includes an initial transmission and/or repeated transmission of the second downlink transmission.
- the third number may be predetermined by the protocol or implemented by the network configuration, and is not limited here.
- the second time threshold mentioned in this embodiment can also be understood as the minimum time capability required for the terminal to complete processing the second downlink transmission and prepare for the first uplink transmission.
- the second time threshold can be implemented by protocol agreement or network side configuration, or can be based on the second reference time and the terminal The second time threshold is determined according to the second reference time and the preparation time required for the uplink transmission on the frequency domain resource of the terminal transmission (N2-5) MHz.
- the second time threshold T’min can be expressed as shown in the following formula (2).
- T2 is the second reference time, which can be predetermined by the protocol.
- T2 NT,1 + NT,2 + 0.5 milliseconds
- DCI i.e., the second downlink transmission
- T1 NT,2 milliseconds
- N2 is the total frequency domain resource value used by the first uplink transmission
- M is the predetermined value
- NT,1 is the duration of N1 time units corresponding to the processing time of PDSCH of terminal processing capability 1 when additional physical downlink shared channel PDSCH demodulation reference signal DM-RS is configured
- NT,2 is the duration of N2 time units corresponding to the processing time of PUSCH of terminal processing capability 1 when additional physical uplink shared channel PUSCH DM-RS is configured.
- the requirements for the terminal processing time with limited baseband bandwidth capability during the communication process are relaxed (such as the second time threshold is greater than the minimum requirement for the terminal processing time in R18), and the restrictions on the network-side scheduling/configuration of frequency domain resources are relaxed, and the feasibility and reliability of the terminal behavior with limited baseband bandwidth capability are ensured.
- the restrictions on the scheduling/configuration of network-side equipment are relaxed (such as allowing the frequency domain used by the first uplink transmission to exceed the bandwidth capacity of the terminal (such as 5MHz), allowing the time for scheduling uplink transmission not to meet the minimum terminal processing time requirement defined in R18), avoiding the impact on non-RedCap terminals (such as only limiting the uplink frequency domain resources of RedCap to not exceed the predetermined value); on the other hand, the complexity of processing terminals with limited baseband bandwidth capabilities is reduced (such as allowing the terminal to give up transmitting the first uplink transmission, etc.), or relative to the minimum terminal processing time requirement defined in R18, the aforementioned implementation method further relaxes the requirements for terminal processing time by setting the second time threshold. From both the network side and the terminal side, the flexibility of the entire communication network is improved.
- first uplink transmission and the second uplink transmission may be the same or different, and the first downlink transmission and the second downlink transmission may also be the same or different, and there is no limitation here.
- FIG4 it is a flow chart of a communication method 400 provided by an exemplary embodiment of the present application.
- the method can be, but is not limited to, executed by a terminal, and specifically can be executed by hardware and/or software installed in the terminal.
- the method 400 may at least include the following steps.
- the terminal processes the target transmission according to the bandwidth capability.
- the bandwidth capability of the terminal is a predetermined value, the predetermined value is less than or equal to 5 MHz, and the target transmission includes a first downlink transmission and/or a first uplink transmission.
- the implementation process of S410 when the terminal processes the target transmission according to the bandwidth capability, can include S411: the terminal processes the target transmission according to the bandwidth capability and the first information.
- the first information includes at least one of the following (41)-(44).
- the terminal capability information includes that the maximum supported bandwidth capability of the terminal is 20 MHz, and/or that the maximum supported baseband bandwidth capability of the terminal is 5 MHz.
- the terminal capability information may also include all (or necessary) capability information of the RedCap terminal defined in R17, all (or necessary) capability information of the RedCap terminal defined in R18, etc., which are not limited here.
- the terminal identification information or terminal early identification information is used to indicate to the network side device that the type of the terminal at least includes that the bandwidth capability of the terminal is the predetermined value.
- the terminal early identification information may include RedCap terminal early identification information defined in R17 and/or RedCap terminal early identification information defined in R18, etc.
- the second information may be carried and sent by MSG 1 and/or MSG 3.
- the MSG 1 may carry shared second information (such as the RedCap terminal early identification information defined in R17), and/or the MSG 3 may carry shared or specific second information (such as the RedCap terminal early identification information defined in R18).
- the MSG 1 resources carrying the terminal early identification information of R17 RedCap are reused by R18 RedCap, thereby avoiding further segmentation of the Physical Random Access Channel (PRACH)/MSG 1 resources and ensuring the reliability of the communication process.
- PRACH Physical Random Access Channel
- the terminal is configured with an independent (or separate) initial bandwidth part (Bandwidth part, BWP), wherein the initial BWP includes an initial uplink (Up-Link, UL) BWP and/or an initial downlink (Down-Link, DL) BWP.
- the independent initial BWP includes at least one of the following: a maximum bandwidth of the independent initial BWP does not exceed 20 MHz; a maximum bandwidth of the independent initial BWP does not exceed 5 MHz.
- the network side device configures an independent initial BWP for the Rel-17 RedCap terminal
- the maximum bandwidth of the independent initial BWP can be 20 MHz
- the Rel-18 RedCap terminal can share the same independent initial DL/UL BWP with the Rel-17 RedCap terminal; otherwise, the Rel-18 RedCap terminal and the Rel-17 RedCap terminal share the same initial BWP as the non-RedCap terminal.
- the network side equipment can use the independent initial BWP mechanism configured for R17 RedCap terminals in the relevant protocol to configure the Rel-18 RedCap terminals.
- An independent initial BWP is set, but because there is no Rel-17 RedCap terminal in the cell at this time, the maximum bandwidth of the independent initial BWP configured by the network side device for the R18 RedCap terminal can be a predetermined value, such as 5MHz.
- carrier information carrying third information the third information including the terminal capability information and/or the second information.
- the carrier information may also be referred to as an early indication or a RedCap indication.
- the carrier information carrying the third information is used to indicate whether the third information is sent in MSG 1 or MSG 3.
- the sending of the aforementioned terminal early identification information can be sent by the terminal when the network side device enables the terminal early identification indication, or it can be sent by the terminal autonomously, and there is no limitation here.
- the terminal when the terminal processes the target transmission according to the bandwidth capability and the first information, if the first information includes at least one of the terminal capability information sent by the terminal, the second information, the carrier information carrying the second information, and the terminal being configured with an independent initial BWP, the terminal performs at least one of the following (51)-(55).
- the first downlink transmission is demodulated, and the time between the last time unit where the first downlink transmission is located and the first time unit where the second uplink transmission is located is expected to be no less than a first time threshold.
- the communication method provided by the present application is further introduced in combination with Examples 1-3, as follows. It should be noted that the bandwidth capability of the R17 RedCap terminal mentioned in this embodiment is 20MHz, and the bandwidth capability of the R18 RedCap terminal is 5MHz.
- the terminal sends MSG 1 to the network side device for random access, and the MSG 1 carries the second information (i.e., the terminal early identification information), then the terminal can perform at least one of the following:
- the total frequency domain resources used by the RAR PDSCH are within 5MHz; in other words, if the network side device correctly receives the MSG 1 sent by the terminal, the network side device should ensure that the total frequency domain resources of the RAR of the terminal do not exceed 5MHz.
- the terminal early indication of MSG 1 is an indication of sharing R17 RedCap
- the total frequency domain resources of RAR corresponding to R17 RedCap and R18 RedCap shall not exceed 5 MHz.
- the terminal early indication of MSG 1 is an indication of R18 RedCap (newly introduced for 18 RedCap indication)
- the total frequency domain resources of RAR corresponding to R18 RedCap shall not exceed 5MHz
- the total frequency domain resources of RAR corresponding to R17 RedCap may exceed 5MHz.
- the terminal receives a RAR PDSCH and the total frequency domain resources used by the RAR PDSCH exceed 5 MHz (i.e., the total frequency domain resources used by the RAR PDSCH are allowed to exceed 5 MHz), then the terminal expects that the time interval between the last symbol of the time slot where the RAR PDSCH is located and the first symbol of the RAR scheduled MSG 3 transmission is not less than the minimum time capability required for the terminal to process the RAR PDSCH and prepare for MSG 3 transmission, i.e., the first time threshold Tmin, such as milliseconds or milliseconds, N1 is the total frequency domain resources used by RAR PDSCH.
- Tmin such as milliseconds or milliseconds
- the terminal may perform at least one of the following:
- the terminal sends MSG 3 after demodulating MSG 2; otherwise, the terminal gives up transmitting MSG 3 or gives up demodulating MSG 2.
- the terminal abandons demodulation of MSG 2.
- the terminal may always expect the frequency domain resources of MSG 4 to be scheduled within 5 MHz, or the terminal may always expect the frequency domain resources of MSG 4 to be scheduled within 20 MHz.
- the terminal always expects the frequency domain resources of the scheduled MSG 4. within 5 MHz; otherwise, the terminal expects the frequency domain resources of MSG 4 to be scheduled to be within 20 MHz.
- LCID logical channel identity
- the terminal can perform any of the following:
- the time interval between the last symbol of the time slot where MSG 4 PDSCH is located and the first symbol of the PUCCH transmission carrying HARQ-ACK feedback for MSG 4 is no less than the minimum time capability required for the R18 terminal to process MSG 4 PDSCH and prepare for PUCCH transmission, that is, the first time threshold.
- the terminal sends PUCCH carrying HARQ-ACK after demodulating MSG 4; otherwise, the terminal gives up transmitting PUCCH or the terminal gives up demodulating MSG 4, the terminal gives up transmitting PUCCH or the terminal gives up demodulating MSG 4.
- the terminal sends MSG 1 (MSG 1 carries R17 RedCap terminal early identification information or R18 RedCap terminal early identification information) to the network side device for random access and receives MSG 2.
- MSG 1 carries R17 RedCap terminal early identification information or R18 RedCap terminal early identification information
- the behavior of the Rel-18 RedCap terminal includes: the Rel-18 RedCap terminal expects the frequency domain resources indicated by the FDRA field of the initial transmission of MSG 3 scheduled by UL grant in RAR and/or the retransmission of MSG 3 scheduled by DCI format (format) 0_0 carrying UL grant and scrambled by TC-RNTI to be within 5MHz.
- the terminal sends MSG 1 to the network side device for random access and receives MSG 2.
- the behavior of the Rel-18 RedCap terminal includes allowing the frequency domain resources indicated by the FDRA field of MSG 3 scheduled by DCI format 0_0 scrambled by TC-RNTI and carrying UL grant to exceed 5MHz.
- the frequency domain resources of MSG 3 received by the Rel-18 RedCap terminal exceed 5MHz, the Rel-18 RedCap terminal abandons the transmission of MSG 3.
- the Transport Block Size (TBS) is 56 bits or 72 bits in most cases, and the required resources will not exceed 5MHz. Therefore, ensuring that the resource allocation of MSG 3 PUSCH is within 5MHz does not impose a great restriction on the network side (Network, NW).
- the bandwidth capability of the terminal (such as the R18 RedCap terminal) is 5MHz, and the network-side device does not enable the terminal early indication of MSG 1, then for MSG 2 and MSG 3, the total frequency domain resources used can exceed 5MHz. For MSG 4, because the R17 RedCap indication must be sent in MSG 3, the frequency domain resources of MSG 4 cannot exceed 5MHz.
- the network side when the network side does not enable the terminal early indication of MSG 1, and based on the received MSG 1, it knows that a terminal in the cell has initiated a random access process, for MSG 2, if the scheduling frequency domain resources of RAR PDSCH exceed 5MHz, then the R18 RedCap terminal behavior includes at least one of (a)-(b).
- the frequency domain resources indicated by the FDRA field of the RAR UL grant and/or the MSG 3 scheduled by the DCI format 0_0 scrambled by TC-RNTI carrying UL grant are allowed to exceed 5 MHz.
- the frequency domain resources of the MSG 3 received by the Rel-18 RedCap terminal exceed 5 MHz, the Rel-18 RedCap terminal abandons the transmission of MSG 3.
- the terminal For MSG 4, the terminal always expects the frequency domain resources of the scheduled MSG 4 to be within 5 MHz.
- the communication methods 200-400 provided in the embodiments of the present application may be executed by a communication device.
- a communication device executing a communication method is taken as an example to illustrate the communication device provided in the embodiments of the present application.
- FIG. 5 it is a structural diagram of a communication device 500 provided for an exemplary embodiment of the present application, and the device 500 includes a processing module 510, which is used to process the target transmission according to the bandwidth capability; wherein the bandwidth capability of the terminal is a predetermined value, the predetermined value is less than or equal to 5MHz, and the target transmission includes a first downlink transmission and/or a first uplink transmission.
- a processing module 510 which is used to process the target transmission according to the bandwidth capability
- the bandwidth capability of the terminal is a predetermined value
- the predetermined value is less than or equal to 5MHz
- the target transmission includes a first downlink transmission and/or a first uplink transmission.
- the device 500 further includes a transmission module for performing the target transmission.
- the processing module 510 processes the target transmission according to the bandwidth capability, including at least one of the following: expecting that the size of the total frequency domain resources used by the first downlink transmission does not exceed the predetermined value; not expecting the size of the total frequency domain resources used by the first downlink transmission to exceed the predetermined value; performing a first operation when the size of the total frequency domain resources used by the first downlink transmission exceeds the predetermined value; expecting that the size of the total frequency domain resources configured or scheduled for the first uplink transmission does not exceed the predetermined value; not expecting the size of the total frequency domain resources configured or scheduled for the first uplink transmission to exceed the predetermined value; and the terminal performing a second operation when the size of the total frequency domain resources configured or scheduled for the first uplink transmission exceeds the predetermined value.
- the processing module 510 performs a first operation, including: when the size of the total frequency domain resources used by the first downlink transmission exceeds the predetermined value, demodulating the first downlink transmission, and performing at least one of the following: expecting that the time between the last time unit of the first downlink transmission and the first time unit of the second uplink transmission is not less than a first time threshold; not expecting that the time after the last time unit of the first downlink transmission is less than the first time threshold of the first time unit of the second uplink transmission; abandoning the second uplink transmission when the time between the last time unit of the first downlink transmission and the first time unit of the second uplink transmission is less than the first time threshold; performing the second uplink transmission when the time between the last time unit of the first downlink transmission and the first time unit of the second uplink transmission is not less than the first time threshold; determining that the random access process corresponding to the first downlink transmission has failed when the time between the last time threshold
- the random access process corresponding to the first downlink transmission has failed, including: when there are a first number of first downlink transmissions and the time between the last time unit where the first number of first downlink transmissions are located and the first time unit where the second uplink transmission is located is less than the first time threshold, it is determined that the random access process corresponding to the first downlink transmission has failed; wherein the first number of the first downlink transmissions includes the initial transmission and/or repeated transmission of the first downlink transmission.
- the processing module 510 performs a first operation when the size of the total frequency domain resources used by the first downlink transmission exceeds the predetermined value, including: when the first downlink transmission is a second number and the size of the total frequency domain resources used by the second number of the first downlink transmissions exceeds the predetermined value, performing at least one of the following: not requiring the terminal to demodulate the first downlink transmission; skipping demodulation of the first downlink transmission; the terminal determining whether to demodulate the first downlink transmission; confirming that the random access process corresponding to the first downlink transmission has failed; wherein the second number of the first downlink transmissions includes an initial transmission and/or repeated transmission of the first downlink transmission.
- the second operation includes at least one of the following: abandoning the first uplink transmission; abandoning the first uplink transmission when the time between the last time unit of the second downlink transmission and the first time unit of the first uplink transmission is less than a second time threshold; performing the first uplink transmission when the time between the last time unit of the second downlink transmission and the first time unit of the first uplink transmission is not less than a second time threshold; determining that the random access process corresponding to the first uplink transmission has failed; wherein the first uplink transmission is an uplink transmission scheduled by the second downlink transmission.
- determining that the random access process corresponding to the first uplink transmission has failed includes: when the first uplink transmission is a third number and the third number of first uplink transmissions are scheduled by a third number of second downlink transmissions received continuously, determining that the random access process corresponding to the first uplink transmission has failed; wherein the third number of second downlink transmissions includes an initial transmission and/or repeated transmission of the second downlink transmission.
- the processing module 510 processes the target transmission according to the bandwidth capability, including: processing the target transmission according to the bandwidth capability and first information; wherein the first information includes at least one of the following: whether the terminal sends terminal capability information; whether the terminal sends second information, the second information includes terminal identification information or terminal early identification information, the terminal identification information or terminal early identification information is used to indicate to the network side device that the type of the terminal at least includes that the bandwidth capability of the terminal is the predetermined value; whether the terminal is configured with an independent initial bandwidth part BWP, the initial BWP includes an initial uplink BWP and/or an initial downlink BWP; carrier information carrying third information, the third information includes the terminal capability information and/or the second information.
- the first information includes at least one of the following: whether the terminal sends terminal capability information; whether the terminal sends second information, the second information includes terminal identification information or terminal early identification information, the terminal identification information or terminal early identification information is used to indicate to the network side device that the type of the terminal at least includes that the bandwidth capability of the terminal is the predetermined
- the processing module 510 processes the target transmission according to the bandwidth capability and the first information, including: when the first information includes at least one of the terminal capability information sent by the terminal, the second information, the carrier information carrying the second information, and the terminal being configured with an independent initial BWP, performing at least one of the following: expecting the size of the total frequency domain resources of the target transmission to not exceed the predetermined value; when the size of the total frequency domain resources used by the first downlink transmission exceeds the predetermined value, demodulating the first downlink transmission, and expecting to receive the time from the last time unit of the first downlink transmission to the first time unit of the second uplink transmission.
- the time between time units is not less than a first time threshold; when the first downlink transmission is the first retransmission and the total frequency domain resource size used by the first downlink transmission exceeds the predetermined value, it is determined that the random access process has failed; when the total frequency domain resource size used by the first uplink transmission exceeds the predetermined value, the time between the last time unit where the first downlink transmission is expected to be received and the first time unit where the first uplink transmission is expected to be received is not less than a second time threshold; when the first uplink transmission is the uplink transmission scheduled for the first retransmission and the total frequency domain resource size used by the first uplink transmission exceeds the predetermined value, it is determined that the random access process has failed.
- the first time threshold is determined based on a first reference time and the time required for the terminal to process downlink transmission on a first designated frequency domain resource
- the first designated frequency domain resource is determined based on the resource difference between the total frequency domain resources used for the first downlink transmission and the predetermined value.
- the first time threshold Tmin is determined by the following formula: Among them, T1 is the first reference time, N1 is the total frequency domain resources used for the first downlink transmission, M is the predetermined value, and NT,1 is the duration of N1 time units corresponding to the processing time of the PDSCH of the terminal processing capability 1 when an additional physical downlink shared channel PDSCH demodulation reference signal DM-RS is configured.
- the second time threshold is determined based on a second reference time and the preparation time required for the terminal to prepare for uplink transmission on a second designated frequency domain resource
- the second designated frequency domain resource is determined based on the resource difference between the frequency domain resource used for the first uplink transmission and the predetermined value.
- the second time threshold T'min is determined by the following formula: Among them, T2 is the second reference time, N2 is the total frequency domain resource value used for the first uplink transmission, M is the predetermined value, and NT,2 is the duration of N2 time units corresponding to the PUSCH processing time of the terminal processing capability 1 when the additional physical uplink shared channel PUSCH DM-RS is configured.
- the terminal capability information includes at least one of the following: a maximum supported bandwidth capability is 20 MHz; a maximum supported baseband bandwidth capability is 5 MHz.
- the independent initial BWP includes at least one of the following: a maximum bandwidth of the independent initial BWP does not exceed 20 MHz; a maximum bandwidth of the independent initial BWP does not exceed 5 MHz.
- the second information is carried and sent by message MSG 1 and/or MSG 3.
- the MSG 1 carries shared second information
- the MSG 3 carries shared or specific second information.
- the first downlink transmission includes an initial transmission and/or retransmission of MSG 2
- the first uplink transmission includes first feedback information and/or an initial transmission or retransmission of MSG 3
- the MSG 3 is scheduled by MSG 2 or a target DCI
- the first feedback information corresponds to MSG 4
- the first downlink transmission is an initial transmission and/or retransmission of MSG B
- the first uplink transmission includes MSG A
- the second feedback information corresponds to the MSG B
- the first uplink transmission includes a PUSCH based on authorization configuration and/or a PUSCH based on random access.
- the communication device 500 in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip.
- the electronic device can be a terminal, or it can be other devices other than a terminal.
- the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.
- the communication device provided in the embodiment of the present application can implement the various processes implemented by the method embodiments of Figures 2 to 4 and achieve the same technical effects. To avoid repetition, they will not be described here.
- the embodiment of the present application also provides a terminal, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in method embodiments 200-400.
- This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the terminal embodiment and can achieve the same technical effect.
- Figure 6 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.
- the terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, and at least some of the components of a processor 610.
- the terminal 600 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 610 through a power management system, so as to implement functions such as managing charging, discharging, and power consumption management through the power management system.
- a power source such as a battery
- the terminal structure shown in FIG6 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.
- the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042, and the graphics processor 6041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
- the display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
- the user input unit 607 includes a touch panel 6071 and at least one of other input devices 6072.
- the touch panel 6071 is also called a touch screen.
- the touch panel 6071 may include two parts: a touch detection device and a touch controller.
- Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
- the RF unit 601 after receiving downlink data from the network side device, can transmit the data to the processor 610 for processing; in addition, the RF unit 601 can send uplink data to the network side device.
- the RF unit 601 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
- the memory 609 can be used to store software programs or instructions and various data.
- the memory 609 can mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area can store an operating system,
- the memory 609 may include an application or instruction required for one less function (such as a sound playback function, an image playback function, etc.).
- the memory 609 may include a volatile memory or a non-volatile memory, or the memory 609 may include both volatile and non-volatile memories.
- the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
- the volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM).
- the memory 609 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.
- the processor 610 may include one or more processing units; optionally, the processor 610 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 610.
- the processor 610 is used to process the target transmission according to the bandwidth capability; wherein the bandwidth capability of the terminal is a predetermined value, the predetermined value is less than or equal to 5 MHz, and the target transmission includes a first downlink transmission and/or a first uplink transmission.
- the processor 610 processes the target transmission according to the bandwidth capability, including at least one of the following: expecting that the size of the total frequency domain resources used by the first downlink transmission does not exceed the predetermined value; not expecting the size of the total frequency domain resources used by the first downlink transmission to exceed the predetermined value; performing a first operation when the size of the total frequency domain resources used by the first downlink transmission exceeds the predetermined value; expecting that the size of the total frequency domain resources configured or scheduled for the first uplink transmission does not exceed the predetermined value; not expecting the size of the total frequency domain resources configured or scheduled for the first uplink transmission to exceed the predetermined value; and the terminal performing a second operation when the size of the total frequency domain resources configured or scheduled for the first uplink transmission exceeds the predetermined value.
- the processor 610 when the size of the total frequency domain resources used by the first downlink transmission exceeds the predetermined value, performs a first operation, including: when the size of the total frequency domain resources used by the first downlink transmission exceeds the predetermined value, demodulating the first downlink transmission, and performing at least one of the following: expecting that the time between the last time unit of the first downlink transmission and the first time unit of the second uplink transmission is not less than a first time threshold; not expecting that the time after the last time unit of the first downlink transmission is less than the first time threshold of the first time unit of the second uplink transmission; abandoning the second uplink transmission when the time between the last time unit of the first downlink transmission and the first time unit of the second uplink transmission is less than the first time threshold; performing the second uplink transmission when the time between the last time unit of the first downlink transmission and the first time unit of the second uplink transmission is not less than the first time threshold; When the time between the last time unit where the first downlink transmission is located and the first time unit where the second
- the random access process corresponding to the first downlink transmission has failed, including: when there are a first number of first downlink transmissions and the time between the last time unit where the first number of first downlink transmissions is located and the first time unit where the second uplink transmission is located is less than the first time threshold, it is determined that the random access process corresponding to the first downlink transmission has failed; wherein the first number of the first downlink transmissions includes initial transmission and/or repeated transmission of the first downlink transmission.
- the processor 610 performs a first operation when the size of the total frequency domain resources used by the first downlink transmission exceeds the predetermined value, including: when the first downlink transmission is a second number and the size of the total frequency domain resources used by the second number of the first downlink transmissions exceeds the predetermined value, performing at least one of the following: not requiring the terminal to demodulate the first downlink transmission; skipping demodulation of the first downlink transmission; the terminal determining whether to demodulate the first downlink transmission; confirming that the random access process corresponding to the first downlink transmission has failed; wherein the second number of the first downlink transmissions includes an initial transmission and/or repeated transmission of the first downlink transmission.
- the second operation includes at least one of the following: abandoning the first uplink transmission; abandoning the first uplink transmission when the time between the last time unit of the second downlink transmission and the first time unit of the first uplink transmission is less than a second time threshold; performing the first uplink transmission when the time between the last time unit of the second downlink transmission and the first time unit of the first uplink transmission is not less than a second time threshold; determining that the random access process corresponding to the first uplink transmission has failed; wherein the first uplink transmission is an uplink transmission scheduled by the second downlink transmission.
- determining that the random access process corresponding to the first uplink transmission has failed includes: when the first uplink transmission is a third number and the third number of first uplink transmissions are scheduled by a third number of second downlink transmissions received continuously, determining that the random access process corresponding to the first uplink transmission has failed; wherein the third number of second downlink transmissions includes an initial transmission and/or repeated transmission of the second downlink transmission.
- the processor 610 processes the target transmission according to the bandwidth capability, including: processing the target transmission according to the bandwidth capability and first information; wherein the first information includes at least one of the following: whether the terminal sends terminal capability information; whether the terminal sends second information, the second information includes terminal identification information or terminal early identification information, the terminal identification information or terminal early identification information is used to indicate to the network side device that the type of the terminal at least includes that the bandwidth capability of the terminal is the predetermined value; whether the terminal is configured with an independent initial bandwidth part BWP, the initial BWP includes an initial uplink BWP and/or an initial downlink BWP; carrier information carrying third information, the third information includes the terminal capability information and/or the second information.
- the first information includes at least one of the following: whether the terminal sends terminal capability information; whether the terminal sends second information, the second information includes terminal identification information or terminal early identification information, the terminal identification information or terminal early identification information is used to indicate to the network side device that the type of the terminal at least includes that the bandwidth capability of the terminal is the predetermined value
- the processor 610 processes the target transmission according to the bandwidth capability and the first information, including: when the first information includes the terminal sending the terminal capability information, the second information, the bearer first In the case of at least one of the carrier information of the second information and the terminal being configured with an independent initial BWP, at least one of the following is performed: expecting the size of the total frequency domain resources of the target transmission to be no more than the predetermined value; in the case where the size of the total frequency domain resources used by the first downlink transmission exceeds the predetermined value, demodulating the first downlink transmission, and expecting that the time between the last time unit where the first downlink transmission is located and the first time unit where the second uplink transmission is located is not less than a first time threshold; in the case where the first downlink transmission is the first retransmission and the size of the total frequency domain resources used by the first downlink transmission exceeds the predetermined value, determining that the random access process has failed; in the case where the size of the total frequency domain resources used by the first uplink transmission exceeds the predetermined value,
- the first time threshold is determined based on a first reference time and the time required for the terminal to process downlink transmission on a first designated frequency domain resource
- the first designated frequency domain resource is determined based on the resource difference between the total frequency domain resources used for the first downlink transmission and the predetermined value.
- the first time threshold Tmin is determined by the following formula: Among them, T1 is the first reference time, N1 is the total frequency domain resources used for the first downlink transmission, M is the predetermined value, and NT,1 is the duration of N1 time units corresponding to the processing time of the PDSCH of the terminal processing capability 1 when an additional physical downlink shared channel PDSCH demodulation reference signal DM-RS is configured.
- the second time threshold is determined based on a second reference time and the preparation time required for the terminal to prepare for uplink transmission on a second designated frequency domain resource
- the second designated frequency domain resource is determined based on the resource difference between the frequency domain resource used for the first uplink transmission and the predetermined value.
- the second time threshold T'min is determined by the following formula: Among them, T2 is the second reference time, N2 is the total frequency domain resource value used for the first uplink transmission, M is the predetermined value, and NT,2 is the duration of N2 time units corresponding to the PUSCH processing time of the terminal processing capability 1 when the additional physical uplink shared channel PUSCH DM-RS is configured.
- the terminal capability information includes at least one of the following: a maximum supported bandwidth capability is 20 MHz; a maximum supported baseband bandwidth capability is 5 MHz.
- the independent initial BWP includes at least one of the following: a maximum bandwidth of the independent initial BWP does not exceed 20 MHz; a maximum bandwidth of the independent initial BWP does not exceed 5 MHz.
- the second information is carried and sent by message MSG 1 and/or MSG 3.
- the MSG 1 carries shared second information
- the MSG 3 carries shared or specific second information.
- the first downlink transmission includes an initial transmission and/or retransmission of MSG 2
- the first uplink transmission includes first feedback information and/or an initial transmission or retransmission of MSG 3
- the MSG 3 is scheduled by MSG 2 or the target DCI
- the first feedback information corresponds to MSG 4
- the first downlink transmission is an initial transmission and/or retransmission of MSG B
- the first uplink transmission includes MSG A and/or second feedback information
- the second feedback information corresponds to MSG B
- the first uplink transmission includes a PUSCH based on authorization configuration and/or a PUSCH based on random access.
- An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored.
- a program or instruction is stored.
- the various processes of the above-mentioned method embodiments 200-400 are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
- the processor is the processor in the terminal described in the above embodiment.
- the readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.
- An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run network-side device programs or instructions to implement the various processes of the above-mentioned method embodiments 200-400, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
- the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
- An embodiment of the present application also provides a computer program product, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor.
- a computer program product which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor.
- the embodiment of the present application also provides a communication system, including: a terminal and a network side device, wherein the terminal can be used to execute each process in the method embodiments 200-400 as described above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
- the technical solution of the present application can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.
- a storage medium such as ROM/RAM, a magnetic disk, or an optical disk
- a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.
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Abstract
Description
Claims (38)
- 一种通信方法,包括:终端根据带宽能力对目标传输进行处理;其中,所述终端的带宽能力为预定值,所述预定值小于或等于5MHz,所述目标传输包括第一下行传输和/或第一上行传输。
- 如权利要求1所述的方法,其中,所述终端根据带宽能力对所述目标传输进行处理,包括以下至少一项:期待所述第一下行传输所使用的频域总资源的大小不超过所述预定值;不期待所述第一下行传输所使用的频域总资源的大小超过所述预定值;在所述第一下行传输所使用的频域总资源的大小超过所述预定值的情况下,执行第一操作;期待为所述第一上行传输所配置或调度的频域总资源的大小不超过所述预定值;不期待为所述第一上行传输所配置或调度的频域总资源的大小超过所述预定值;在为所述第一上行传输所配置或调度的频域总资源的大小超过所述预定值的情况下,所述终端执行第二操作。
- 如权利要求2所述的方法,其中,在所述第一下行传输所使用的频域总资源的大小超过所述预定值的情况下,执行第一操作,包括:在所述第一下行传输所使用的频域总资源的大小超过所述预定值的情况下,所述终端解调所述第一下行传输,以及执行以下至少一项:期待所述第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间不小于第一时间阈值;不期待第二上行传输所在的第一个时间单元在所述第一下行传输所在的最后一个时间单元之后的时间小于第一时间阈值;在所述第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间小于第一时间阈值的情况下,放弃所述第二上行传输;在所述第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间不小于第一时间阈值的情况下,进行所述第二上行传输;在所述第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间小于第一时间阈值的情况下,确定所述第一下行传输对应的随机接入过程失败;其中,所述第二上行传输是由所述第一下行传输调度的上行传输。
- 如权利要求3所述的方法,其中,在所述第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间小于第一时间阈值的情况下,确定所述第一下行传输对应的随机接入过程失败,包括:在所述第一下行传输为第一数量个、且所述第一数量个第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间小于第一时间阈值的情况下,确定所述第一下行传输对应的随机接入过程失败;其中,所述第一数量个所述第一下行传输中包括所述第一下行传输的初始传输和/或重复传输。
- 如权利要求2所述的方法,其中,在所述第一下行传输所使用的频域总资源的大小超过所述预定值的情况下,执行第一操作,包括:在所述第一下行传输为第二数量个、且所述第二数量个所述第一下行传输所使用的频域总资源的大小超过所述预定值的情况下,执行以下至少一项:不要求所述终端解调所述第一下行传输;跳过所述第一下行传输的解调;所述终端确定是否解调所述第一下行传输;确认与所述第一下行传输对应的随机接入过程失败;其中,所述第二数量个所述第一下行传输中包括所述第一下行传输的初始传输和/或重复传输。
- 如权利要求2所述的方法,其中,所述第二操作,包括以下至少一项:放弃所述第一上行传输;在第二下行传输所在的最后一个时间单元到所述第一上行传输在的第一个时间单元之间的时间小于第二时间阈值的情况下,放弃所述第一上行传输;在第二下行传输所在的最后一个时间单元到所述第一上行传输在的第一个时间单元之间的时间不小于第二时间阈值的情况下,进行所述第一上行传输;确定与所述第一上行传输对应的随机接入过程失败;其中,所述第一上行传输是由所述第二下行传输调度的上行传输。
- 如权利要求6所述的方法,其中,确定与所述第一上行传输对应的随机接入过程失败,包括:在所述第一上行传输为第三数量个、且所述第三数量个第一上行传输由连续接收到的第三数量个第二下行传输调度的情况下,确定与所述第一上行传输对应的随机接入过程失败;其中,所述第三数量个第二下行传输包括所述第二下行传输的初始传输和/或重复传输。
- 如权利要求1-7中任一项所述的方法,其中,所述终端根据带宽能力对所述目标传输进行处理,包括:所述终端根据所述带宽能力和第一信息对所述目标传输进行处理;其中,所述第一信息包括以下至少一项:所述终端是否发送终端能力信息;所述终端是否发送第二信息,所述第二信息包括终端识别的信息或终端早期识别的信息,所述终端识别的信息或终端早期识别的信息用于向网络侧设备指示所述终端的类型至少包括所述终端的带宽能力为所述预定值;所述终端是否被配置了独立的初始带宽部分BWP,所述初始BWP包括初始上行BWP和/或初始下行BWP;承载第三信息的载体信息,所述第三信息包括所述终端能力信息和/或所述第二信息。
- 如权利要求8所述的方法,其中,所述终端根据所述带宽能力和第一信息对所述目标传输进行处理,包括:在所述第一信息包括所述终端发送了所述终端能力信息、所述第二信息、所述承载第二信息的载体信息、所述终端被配置了独立的初始BWP中的至少一项的情况下,执行以下至少一项:期待所述目标传输的频域总资源的大小不超过所述预定值;在所述第一下行传输所使用的频域总资源大小超过所述预定值的情况下,解调所述第一下行传输,以及期待接收所述第一下行传输所在的最后一个时间单元到所述第二上行传输所在的第一个时间单元之间的时间不小于第一时间阈值;在所述第一下行传输为第一次重传、且所述第一下行传输所使用的频域总资源大小超过所述预定值的情况下,确定随机接入过程失败;在所述第一上行传输所使用的频域总资源大小超过所述预定值的情况下,期待接收所述第一下行传输所在的最后一个时间单元到所述第一上行传输所在的第一个时间单元之间的时间不小于第二时间阈值;在所述第一上行传输为第一次重传调度的上行传输、且所述第一上行传输所使用的频域总资源大小超过所述预定值的情况下,确定随机接入过程失败。
- 如权利要求3、4或9中任一项所述的方法,其中,所述第一时间阈值根据第一基准时间和所述终端处理第一指定频域资源上的下行传输所需的时间确定,所述第一指定频域资源是根据所述第一下行传输所使用的频域总资源与所述预定值之间的资源差确定。
- 如权利要求10所述的方法,其中,所述第一时间阈值Tmin通过以下公式确定:
其中,T1为所述第一基准时间,N1为所述第一下行传输所使用的频域总资源,M为所述预定值,NT,1为当配置了附加物理下行共享信道PDSCH解调参考信号DM-RS时与终端处理能力1的PDSCH的处理时间相对应的N1个时间单元的持续时间。 - 如权利要求6或9所述的方法,其中,所述第二时间阈值根据第二基准时间和所述终端准备传输第二指定频域资源上的上行传输所需的准备时间确定,所述第二指定频域资源是根据所述第一上行传输所使用的频域资源与所述预定值之间的资源差确定。
- 如权利要求12所述的方法,其中,所述第二时间阈值T’min通过以下公式确定:
其中,T2为所述第二基准时间,N2为所述第一上行传输所使用的频域总资源值,M为所述预定值,NT,2为当配置附加物理上行共享信道PUSCH DM-RS时与终端处理能力1的PUSCH处理时间相对应的N2个时间单元的持续时间。 - 如权利要求6-13中任一项所述的方法,其中,所述终端能力信息包括以下至少一项:最大支持带宽能力是20MHz;最大支持的基带带宽能力是5MHz。
- 如权利要求8或9所述的方法,其中,所述独立的初始BWP包括以下至少一项:独立的初始BWP的最大带宽不超过20MHz;独立的初始BWP的最大带宽不超过5MHz。
- 如权利要求8或9所述的方法,其中,所述第二信息由消息MSG 1和/或MSG 3携带发送。
- 如权利要求16所述的方法,其中,所述MSG 1携带共享的第二信息,和/或,所述MSG 3携带共享的或特定的第二信息。
- 如权利要求2-17中任一项所述的方法,其中,以下至少一项被满足:在四步随机接入过程中,所述第一下行传输包括初传和/或重传的MSG 2,所述第一上行传输包括第一反馈信息和/或初传或重传的MSG 3,所述MSG 3由MSG 2或目标DCI调度,所述第一反馈信息与MSG 4对应;在两步随机接入过程中,所述第一下行传输为初传和/或重传的MSG B,所述第一上行传输包括MSG A和/或第二反馈信息,所述第二反馈信息与所述MSG B对应;在小数据传输过程中,所述第一上行传输包括基于授权配置的PUSCH和/或基于随机接入的PUSCH。
- 一种通信装置,包括:处理模块,用于根据带宽能力对目标传输进行处理;其中,终端的带宽能力为预定值,所述预定值小于或等于5MHz,所述目标传输包括第一下行传输和/或第一上行传输。
- 如权利要求19所述的装置,其中,所述处理模块根据带宽能力对所述目标传输进行处理,包括以下至少一项:期待所述第一下行传输所使用的频域总资源的大小不超过所述预定值;不期待所述第一下行传输所使用的频域总资源的大小超过所述预定值;在所述第一下行传输所使用的频域总资源的大小超过所述预定值的情况下,执行第一操作;期待为所述第一上行传输所配置或调度的频域总资源的大小不超过所述预定值;不期待为所述第一上行传输所配置或调度的频域总资源的大小超过所述预定值;在为所述第一上行传输所配置或调度的频域总资源的大小超过所述预定值的情况下,所述终端执行第二操作。
- 如权利要求20所述的装置,其中,所述处理模块在所述第一下行传输所使用的频域总资源的大小超过所述预定值的情况下,执行第一操作,包括:在所述第一下行传输所使用的频域总资源的大小超过所述预定值的情况下,解调所述第一下行传输,以及执行以下至少一项:期待所述第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间不小于第一时间阈值;不期待第二上行传输所在的第一个时间单元在所述第一下行传输所在的最后一个时间单元之后的时间小于第一时间阈值;在所述第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间小于第一时间阈值的情况下,放弃所述第二上行传输;在所述第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间不小于第一时间阈值的情况下,进行所述第二上行传输;在所述第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间小于第一时间阈值的情况下,确定所述第一下行传输对应的随机接入过程失败;其中,所述第二上行传输是由所述第一下行传输调度的上行传输。
- 如权利要求21所述的装置,其中,在所述第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间小于第一时间阈值的情况下,确定所述第一下行传输对应的随机接入过程失败,包括:在所述第一下行传输为第一数量个、且所述第一数量个第一下行传输所在的最后一个时间单元到第二上行传输所在的第一个时间单元之间的时间小于第一时间阈值的情况下,确定所述第一下行传输对应的随机接入过程失败;其中,所述第一数量个所述第一下行传输中包括所述第一下行传输的初始传输和/或重复传输。
- 如权利要求20所述的装置,其中,所述处理模块在所述第一下行传输所使用的频域总资源的大小超过所述预定值的情况下,执行第一操作,包括:在所述第一下行传输为第二数量个、且所述第二数量个所述第一下行传输所使用的频域总资源的大小超过所述预定值的情况下,执行以下至少一项:不要求所述终端解调所述第一下行传输;跳过所述第一下行传输的解调;所述终端确定是否解调所述第一下行传输;确认与所述第一下行传输对应的随机接入过程失败;其中,所述第二数量个所述第一下行传输中包括所述第一下行传输的初始传输和/或重复传输。
- 如权利要求20所述的装置,其中,所述第二操作,包括以下至少一项:放弃所述第一上行传输;在第二下行传输所在的最后一个时间单元到所述第一上行传输在的第一个时间单元之间的时间小于第二时间阈值的情况下,放弃所述第一上行传输;在第二下行传输所在的最后一个时间单元到所述第一上行传输在的第一个时间单元之间的时间不小于第二时间阈值的情况下,进行所述第一上行传输;确定与所述第一上行传输对应的随机接入过程失败;其中,所述第一上行传输是由所述第二下行传输调度的上行传输。
- 如权利要求24所述的装置,其中,确定与所述第一上行传输对应的随机接入过程失败,包括:在所述第一上行传输为第三数量个、且所述第三数量个第一上行传输由连续接收到的第三数量个第二下行传输调度的情况下,确定与所述第一上行传输对应的随机接入过程失败;其中,所述第三数量个第二下行传输包括所述第二下行传输的初始传输和/或重复传输。
- 如权利要求21或22所述的装置,其中,所述处理模块根据带宽能力对所述目标传输进行处理,包括:根据所述带宽能力和第一信息对所述目标传输进行处理;其中,所述第一信息包括以下至少一项:所述终端是否发送终端能力信息;所述终端是否发送第二信息,所述第二信息包括终端识别的信息或终端早期识别的信息,所述终端识别的信息或终端早期识别的信息用于向网络侧设备指示所述终端的类型至少包括所述终端的带宽能力为所述预定值;所述终端是否被配置了独立的初始带宽部分BWP,所述初始BWP包括初始上行BWP和/或初始下行BWP;承载第三信息的载体信息,所述第三信息包括所述终端能力信息和/或所述第二信息。
- 如权利要求26所述的装置,其中,所述处理模块根据所述带宽能力和第一信息对所述目标传输进行处理,包括:在所述第一信息包括所述终端发送了所述终端能力信息、所述第二信息、所述承载第二信息的载体信息、所述终端被配置了独立的初始BWP中的至少一项的情况下,执行以下至少一项:期待所述目标传输的频域总资源的大小不超过所述预定值;在所述第一下行传输所使用的频域总资源大小超过所述预定值的情况下,解调所述第一下行传输,以及期待接收所述第一下行传输所在的最后一个时间单元到所述第二上行传输所在的第一个时间单元之间的时间不小于第一时间阈值;在所述第一下行传输为第一次重传、且所述第一下行传输所使用的频域总资源大小超过所述预定值的情况下,确定随机接入过程失败;在所述第一上行传输所使用的频域总资源大小超过所述预定值的情况下,期待接收所述第一下行传输所在的最后一个时间单元到所述第一上行传输所在的第一个时间单元之间的时间不小于第二时间阈值;在所述第一上行传输为第一次重传调度的上行传输、且所述第一上行传输所使用的频域总资源大小超过所述预定值的情况下,确定随机接入过程失败。
- 如权利要求21、22或27中任一项所述的装置,其中,所述第一时间阈值根据第一基准时间和所述终端处理第一指定频域资源上的下行传输所需的时间确定,所述第一指定频域资源是根据所述第一下行传输所使用的频域总资源与所述预定值之间的资源差确定。
- 如权利要求28所述的装置,其中,所述第一时间阈值Tmin通过以下公式确定:
其中,T1为所述第一基准时间,N1为所述第一下行传输所使用的频域总资源,M为所述预定值,NT,1为当配置了附加物理下行共享信道PDSCH解调参考信号DM-RS时与终端处理能力1的PDSCH的处理时间相对应的N1个时间单元的持续时间。 - 如权利要求24或27所述的装置,其中,所述第二时间阈值根据第二基准时间和所述终端准备传输第二指定频域资源上的上行传输所需的准备时间确定,所述第二指定频域资源是根据所述第一上行传输所使用的频域资源与所述预定值之间的资源差确定。
- 如权利要求30所述的装置,其中,所述第二时间阈值T’min通过以下公式确定:
其中,T2为所述第二基准时间,N2为所述第一上行传输所使用的频域总资源值,M为所述预定值,NT,2为当配置附加物理上行共享信道PUSCH DM-RS时与终端处理能力1的PUSCH处理时间相对应的N2个时间单元的持续时间。 - 如权利要求24-31中任一项所述的装置,其中,所述终端能力信息包括以下至少一项:最大支持带宽能力是20MHz;最大支持的基带带宽能力是5MHz。
- 如权利要求26或27所述的装置,其中,所述独立的初始BWP包括以下至少一 项:独立的初始BWP的最大带宽不超过20MHz;独立的初始BWP的最大带宽不超过5MHz。
- 如权利要求26或27所述的装置,其中,所述第二信息由消息MSG 1和/或MSG 3携带发送。
- 如权利要求34所述的装置,其中,所述MSG1携带共享的第二信息,和/或,所述MSG 3携带共享的或特定的第二信息。
- 如权利要求20-35中任一项所述的装置,其中,以下至少一项被满足:在四步随机接入过程中,所述第一下行传输包括初传和/或重传的MSG 2,所述第一上行传输包括第一反馈信息和/或初传或重传的MSG 3,所述MSG 3由MSG 2或目标DCI调度,所述第一反馈信息与MSG 4对应;在两步随机接入过程中,所述第一下行传输为初传和/或重传的MSG B,所述第一上行传输包括MSG A和/或第二反馈信息,所述第二反馈信息与所述MSG B对应;在小数据传输过程中,所述第一上行传输包括基于授权配置的PUSCH和/或基于随机接入的PUSCH。
- 一种终端,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至18任一项所述的方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1-18任一项所述的方法的步骤。
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| EP23884940.0A EP4615047A4 (en) | 2022-11-03 | 2023-10-31 | COMMUNICATION METHOD AND APPARATUS, AND TERMINALS |
| US19/197,495 US20250261179A1 (en) | 2022-11-03 | 2025-05-02 | Communication method and apparatus, and terminal |
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| CN113676957A (zh) * | 2020-05-15 | 2021-11-19 | 华为技术有限公司 | 一种切换方法及装置 |
| WO2022028359A1 (zh) * | 2020-08-07 | 2022-02-10 | 华为技术有限公司 | 一种无线接入的方法以及装置 |
| WO2022126637A1 (zh) * | 2020-12-18 | 2022-06-23 | Oppo广东移动通信有限公司 | 资源确定方法、终端设备和网络设备 |
| CN115209535A (zh) * | 2021-04-09 | 2022-10-18 | 华为技术有限公司 | 一种上行信道的发送方法、接收方法及通信装置 |
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| CN113676957A (zh) * | 2020-05-15 | 2021-11-19 | 华为技术有限公司 | 一种切换方法及装置 |
| WO2022028359A1 (zh) * | 2020-08-07 | 2022-02-10 | 华为技术有限公司 | 一种无线接入的方法以及装置 |
| WO2022126637A1 (zh) * | 2020-12-18 | 2022-06-23 | Oppo广东移动通信有限公司 | 资源确定方法、终端设备和网络设备 |
| CN115209535A (zh) * | 2021-04-09 | 2022-10-18 | 华为技术有限公司 | 一种上行信道的发送方法、接收方法及通信装置 |
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| JP2025534847A (ja) | 2025-10-17 |
| US20250261179A1 (en) | 2025-08-14 |
| EP4615047A1 (en) | 2025-09-10 |
| EP4615047A4 (en) | 2026-01-21 |
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