WO2023044863A1 - 一种随机接入方法、随机接入装置及存储介质 - Google Patents

一种随机接入方法、随机接入装置及存储介质 Download PDF

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Publication number
WO2023044863A1
WO2023044863A1 PCT/CN2021/120748 CN2021120748W WO2023044863A1 WO 2023044863 A1 WO2023044863 A1 WO 2023044863A1 CN 2021120748 W CN2021120748 W CN 2021120748W WO 2023044863 A1 WO2023044863 A1 WO 2023044863A1
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WIPO (PCT)
Prior art keywords
random access
terminal
semi
identification information
rrc connection
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Ceased
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PCT/CN2021/120748
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English (en)
French (fr)
Inventor
乔雪梅
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202180002893.1A priority Critical patent/CN116195327B/zh
Priority to EP21957982.8A priority patent/EP4408096A4/en
Priority to US18/694,625 priority patent/US20250016838A1/en
Priority to CN202511307907.7A priority patent/CN121126570A/zh
Priority to PCT/CN2021/120748 priority patent/WO2023044863A1/zh
Publication of WO2023044863A1 publication Critical patent/WO2023044863A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present disclosure relates to the technical field of wireless communication, and in particular, to a random access method, a random access device, and a storage medium.
  • the terminal may need to perform a random access process in a contention-based random access manner, for example, perform a random access process in a 2-step random access manner or perform a random access process in a 4-step random access manner.
  • a random access process in a contention-based random access manner
  • it is necessary to perform random access contention resolution based on the terminal's own identity, and when the random access contention is successfully resolved, it is determined that the terminal enters a connected state.
  • the contention-based random access method has complex steps, especially the 4-step random access method, which has a large random access delay and consumes a lot of power for the terminal.
  • the present disclosure provides a random access method, a random access device and a storage medium.
  • a random access method which is applied to a terminal, and the method includes:
  • the uplink message includes a radio resource control RRC connection recovery request and/or an RRC connection establishment request.
  • the method before sending the uplink message for random access based on the semi-static transmission resource, the method further includes:
  • the semi-static transmission resource is a semi-static transmission resource used for transmission of small data packets in an inactive state.
  • the uplink message does not include the first identification information of the terminal, and the first identification information of the terminal is the identification information of the terminal in an RRC inactive state.
  • the first identification information of the terminal is determined based on the position of the semi-static transmission resource bearing the uplink message.
  • the method further includes:
  • the RRC connection recovery message or the RRC connection establishment information does not include contention resolution information.
  • the method further includes:
  • the second identification information of the terminal is acquired, and the second identification information of the terminal is used for data scheduling and data transmission.
  • a random access method is provided, which is applied to a network device, and the method includes:
  • An uplink message for random access sent by the terminal based on the semi-static transmission resource is received.
  • the uplink message includes an RRC connection recovery request and/or an RRC connection establishment request.
  • the semi-static transmission resource is a semi-static transmission resource used for transmission of small data packets in an inactive state.
  • the uplink message does not include the first identification information of the terminal, and the first identification information of the terminal is the identification information of the terminal in an RRC inactive state.
  • the first identification information of the terminal is determined based on a semi-static resource location bearing the uplink message.
  • the method further includes:
  • DCI In response to receiving the uplink message, DCI is sent, and the downlink data transmission scheduled by the DCI includes RRC connection recovery information or RRC connection establishment information indicating the terminal.
  • the RRC connection recovery message or the RRC connection establishment information does not include contention resolution information.
  • the method further includes:
  • the indication message includes the second identification information of the terminal, and the second identification information of the terminal is used for data scheduling and data transmission.
  • a random access device which is applied to a terminal, and the device includes:
  • a processing module configured to determine a semi-static transmission resource; a sending module, configured to send an uplink message for random access based on the semi-static transmission resource.
  • the uplink message includes a radio resource control RRC connection recovery request and/or an RRC connection establishment request.
  • the method before sending the uplink message for random access based on the semi-static transmission resource, the method further includes:
  • the semi-static transmission resource is a semi-static transmission resource used for transmission of small data packets in an inactive state.
  • the uplink message does not include the first identification information of the terminal, and the first identification information of the terminal is the identification information of the terminal in an RRC inactive state.
  • the first identification information of the terminal is determined based on the position of the semi-static transmission resource bearing the uplink message.
  • the device further includes: a receiving module
  • the receiving module is configured to receive downlink control information DCI; in response to the downlink data transmission scheduled by the DCI including RRC connection recovery information or RRC connection establishment information, sending a reception confirmation message.
  • the RRC connection recovery message or the RRC connection establishment information does not include contention resolution information.
  • processing module is also used for:
  • the second identification information of the terminal is acquired, and the second identification information of the terminal is used for data scheduling and data transmission.
  • a random access device which is applied to a network device, and the device includes:
  • the receiving module is configured to receive the uplink message for random access sent by the terminal based on the semi-static transmission resource.
  • the uplink message includes an RRC connection recovery request and/or an RRC connection establishment request.
  • the semi-static transmission resource is a semi-static transmission resource used for transmission of small data packets in an inactive state.
  • the uplink message does not include the first identification information of the terminal, and the first identification information of the terminal is the identification information of the terminal in an RRC inactive state.
  • the first identification information of the terminal is determined based on a semi-static resource location bearing the uplink message.
  • the device further includes: a sending module
  • the sending module is configured to send DCI in response to receiving the uplink message, and the downlink data transmission scheduled by the DCI includes RRC connection recovery information or RRC connection establishment information indicating the terminal.
  • the RRC connection recovery message or the RRC connection establishment information does not include contention resolution information.
  • the sending module is also used for:
  • the indication message includes the second identification information of the terminal, and the second identification information of the terminal is used for data scheduling and data transmission.
  • a random access device including:
  • a processor a memory for storing processor-executable instructions; wherein, the processor is configured to: execute the random access method described in the first aspect or any one of the implementation manners in the first aspect, or execute the second aspect The random access method described in any one implementation manner of the aspect or the second aspect.
  • a storage medium stores instructions, and when the instructions in the storage medium are executed by the processor of the mobile terminal, the mobile terminal can execute the first aspect Or the random access method described in any one of the implementation manners of the first aspect, or enabling the mobile terminal to execute the random access method described in the second aspect or any one of the implementation manners of the first aspect.
  • the terminal sends an uplink message for random access based on semi-static transmission resources, which can reduce the steps of random access and save energy consumption of the terminal.
  • Fig. 1 is an architecture diagram of a communication system of a network device and a terminal according to an exemplary embodiment.
  • Fig. 2 is a flowchart showing a random access manner according to an exemplary embodiment.
  • Fig. 3 is a flowchart showing a random access method according to an exemplary embodiment.
  • Fig. 4 is a flow chart showing a random access method according to an exemplary embodiment.
  • Fig. 5 is a flowchart showing a random access method according to an exemplary embodiment.
  • Fig. 6 is a flowchart showing a random access method according to an exemplary embodiment.
  • Fig. 7 is a block diagram of a random access device according to an exemplary embodiment.
  • Fig. 8 is a block diagram of a random access device according to an exemplary embodiment.
  • Fig. 9 is a block diagram showing a device for random access according to an exemplary embodiment.
  • Fig. 10 is a block diagram showing a device for random access according to an exemplary embodiment.
  • Fig. 1 is an architecture diagram of a communication system of a network device and a terminal according to an exemplary embodiment.
  • the communication method provided by the present disclosure can be applied to the architecture diagram of the communication system shown in FIG. 1 .
  • the network side device may send signaling based on the architecture shown in FIG. 1 .
  • the communication system between the network equipment and the terminal shown in FIG. 1 is only for schematic illustration, and the wireless communication system may also include other network equipment, such as core network equipment, wireless relay equipment, and wireless backhaul equipment. Transmission equipment, etc. are not shown in Figure 1.
  • the embodiment of the present disclosure does not limit the number of network devices and the number of terminals included in the wireless communication system.
  • the wireless communication system in the embodiment of the present disclosure is a network that provides a wireless communication function.
  • Wireless communication systems can use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA) , frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency-division multiple access (single Carrier FDMA, SC-FDMA), carrier sense Multiple Access/Conflict Avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • single Carrier FDMA single Carrier FDMA
  • SC-FDMA carrier sense Multiple Access/Conflict Avoidance
  • Carrier Sense Multiple Access with Collision Avoidance Carrier Sense Multiple Access with Collision Avoidance
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called a new wireless network ( New Radio, NR).
  • 2G International: generation
  • 3G network 4G network or future evolution network, such as 5G network
  • 5G network can also be called a new wireless network ( New Radio, NR).
  • New Radio New Radio
  • the present disclosure sometimes simply refers to a wireless communication network as a network.
  • the wireless access network device may be: a base station, an evolved base station (evolved node B, base station), a home base station, an access point (access point, AP) in a wireless fidelity (wireless fidelity, WIFI) system, a wireless relay Node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be gNB in the NR system, or it can also be a component or a part of equipment that constitutes a base station wait.
  • the network device may also be a vehicle-mounted device.
  • V2X vehicle-to-everything
  • the network device may also be a vehicle-mounted device. It should be understood that in the embodiments of the present disclosure, no limitation is imposed on the specific technology and specific device form adopted by the network device.
  • terminals involved in this disclosure can also be referred to as terminal equipment, user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc.
  • a device providing voice and/or data connectivity for example, a terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • examples of some terminals are: smart phones (Mobile Phone), pocket computers (Pocket Personal Computer, PPC), handheld computers, personal digital assistants (Personal Digital Assistant, PDA), notebook computers, tablet computers, wearable devices, or Vehicle equipment, etc.
  • V2X vehicle-to-everything
  • the terminal device can also be a vehicle-mounted device. It should be understood that the embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the terminal.
  • SDT Small Data Transmission
  • the SDT based on semi-static configuration is that when the base station transitions from the radio resource control (Radio Resource Control, RRC) connected state (connected) state to the RRC inactive state, the RRC connection release (RRC release) message carries the information required for SDT transmission.
  • RRC Radio Resource Control
  • RRC release RRC connection release
  • Semi-static time-frequency domain resource allocation information and timing advance value Time Advance, TA
  • the terminal When the terminal has uplink data to transmit in the inactive state, it first judges the validity of the TA, the coverage condition and the size of the data packet. Transmission of small data packets.
  • the SDT based on the random access process is further divided into two ways, namely the SDT based on the two-step (2-step) random access channel (Random Access Channel, RACH) and the SDT based on the 4-step RACH.
  • RACH Random Access Channel
  • the small data packet will be transmitted in the Physical Uplink Shared CHannel (PUSCH) resource of the random access request message (msgA); and for the SDT based on 4-step RACH, Small packets will be carried in msg3.
  • PUSCH Physical Uplink Shared CHannel
  • msgA random access request message
  • SDT based on 4-step RACH Small packets will be carried in msg3.
  • it is also necessary to judge the size of the data packet Only when the size of the data packet is smaller than a certain threshold value, can the small data packet be transmitted during the random access process.
  • the terminal needs to compare the current SS-RSRP with the RSRP threshold before transmitting the small data packet. Only when the current SS-RSRP is greater than the RSRP threshold, the terminal will transmit the small data packet.
  • the purpose of comparing the RSRP threshold is to ensure that SDT transmission can only be performed under good coverage conditions, so as to avoid wasting uplink transmission resources.
  • C-RNTI Cell-Radio Network Temporary Identifier
  • the 4-step RACH contention-based random access mode may refer to FIG. 2 .
  • Fig. 2 is a flowchart showing a random access manner according to an exemplary embodiment.
  • the terminal needs to send a random access request to the network device through a physical random access channel (Physical Random Access Channel, PRACH) resource.
  • PRACH Physical Random Access Channel
  • the network device assigns a temporary cell-radio network temporary identifier (Temporary Cell-Radio Network Temporary Identifier, TC-RNTI) to the terminal through a random access response message (Random access response, RAR), and transmits a message 3 (msg. 3) Required uplink (Up Link, UL) resources.
  • TC-RNTI Temporary Cell-Radio Network Temporary Identifier
  • RAR Random access response
  • msg. 3 Required uplink (Up Link, UL) resources.
  • the terminal blindly detects and schedules the Physical Downlink Control Channel (PDCCH) of the RAR through the Random Access Radio Network Temporary Identifier (RA-RNTI).
  • RA-RNTI Random Access Radio Network Temporary Identifier
  • the terminal sends msg.3 to the network device.
  • msg.3 includes high-level signaling such as RRC resume request (resume Request).
  • RRC resume request resume Request
  • the terminal bears its own identity i-RNTI or short i-RNTI, and starts random access contention resolution.
  • the terminal dispatches the downlink control information (Downlink Control Information, DCI) of msg.4 through the TC-RNTI blind detection obtained in the second step.
  • DCI Downlink Control Information
  • MAC Control Element MAC CE
  • MAC CE MAC Control Element
  • contention-based random access methods such as 4-step RACH
  • have complicated steps have a large random access delay, and are not conducive to terminal energy saving.
  • this application proposes a random access method, which initiates random access by configuring semi-static transmission resources for the terminal SDT.
  • the msg.3 of the uplink message can be directly sent, thereby shortening the random access process and realizing the effect of saving terminal energy consumption.
  • Fig. 3 is a flowchart showing a random access method according to an exemplary embodiment. As shown in Figure 3, the random access method is used in a terminal, including the following steps.
  • step S11 semi-static transmission resources are determined.
  • step S12 an uplink message for random access is sent based on the semi-static transmission resource.
  • the semi-static transmission resource is a semi-static transmission resource used for the SDT of the inactive small data packet transmission.
  • the terminal determines the semi-static transmission resources used for inactive small data packet transmission SDT; when the terminal needs to enter the RRC connection state, based on the semi-static transmission resources used for data transmission, it sends incoming uplink messages.
  • the terminal needs to enter the RRC connection state, it needs to request the network device to access the network and establish a network connection; at this time, the terminal can use the semi-static transmission resources used to transmit SDT in the inactive state small data packet to send random access msg.3 to achieve random access.
  • the terminal is configured with semi-static transmission resources for inactive small data packet transmission SDT, msg.3 for random access may be initiated based on the semi-static transmission resources.
  • the semi-static transmission resources used for the inactive state small data packet transmission SDT may be determined by the terminal based on the configuration of the network side equipment, or based on pre-stored configuration information, or determined based on the communication protocol.
  • the msg.3 for random access can be sent based on semi-static transmission resources to achieve random access, which shortens the process of random access and achieves the effect of saving terminal energy consumption.
  • the uplink message includes an RRC connection recovery request and/or an RRC connection establishment request.
  • the terminal may be configured and authorized to transmit small data packets in an inactive state.
  • a terminal when a terminal needs to perform random access, it needs to determine a timing advance value for random access uplink data transmission, and when it is determined that the timing advance value is valid, configure the terminal for small data packet transmission
  • the semi-static transmission resource sends an RRC connection recovery request and/or an RRC connection establishment request to a network device (for example, a base station) to initiate random access.
  • the semi-static transmission resource configured for the terminal small data packet transmission in the embodiment of the present disclosure is the semi-static transmission resource of the terminal RRC inactive state small data packet transmission.
  • the uplink message does not include the first identification information of the terminal.
  • the first identification information of the terminal is identification information of the terminal in an RRC inactive state.
  • the first identification information is i-RNTI.
  • the terminal's semi-static transmission resource location for small data packet transmission configured based on the network device and the terminal's identification information. That is, when the terminal sends the uplink message for random access based on the semi-static transmission resource, it may implicitly indicate the first identification information of the network device terminal based on the mapping relationship between the position of the semi-static transmission resource and the identification information of the terminal, that is, , implicitly indicating the i-RNTI of the network device terminal based on the location of the semi-static transmission resource.
  • the i-RNT is used for random access of the terminal.
  • the terminal after the terminal sends the RRC connection recovery request and/or the RRC connection establishment request, it will receive the DCI sent by the network device through the common search space (Common Search Space, CSS) or USS, and determine that the random access is completed, Refer to Figure 4 for its execution steps.
  • common search space Common Search Space, CSS
  • USS Common Search Space
  • Fig. 4 is a flow chart showing a random access method according to an exemplary embodiment. As shown in Figure 4, the random access method is used in a terminal, including the following steps.
  • step S21 DCI is received.
  • step S22 in response to the fact that the downlink data transmission scheduled by the DCI includes RRC connection recovery information or RRC connection establishment information, a reception confirmation message is sent.
  • the terminal performs msg.4 scheduling of random access based on the DCI received by the CSS/USS, and determines the RRC information contained in msg.4.
  • msg.4 contains RRC connection recovery information or RRC connection establishment information
  • a reception confirmation message (Acknowledge character, ACK) is fed back to the base station, and the random access process is completed.
  • ACK Acknowledge character
  • the DCI is: the DCI sent by the base station after receiving the random access uplink message sent by the terminal; wherein the uplink message is a semi-static transmission in which the terminal transmits SDT using an inactive small data packet resource sent.
  • the contention resolution information may not be included in the RRC connection recovery message or the RRC connection establishment information.
  • the semi-static transmission resource position configured by the terminal based on the network device for small data packet transmission has a mapping relationship with the identification information of the terminal. The terminal initiates random access based on the physical resources corresponding to the terminal itself, so contention resolution does not need to be performed.
  • the second identification information of the terminal may be acquired based on received indication information or a communication protocol. Wherein, the second identification information of the terminal is used for data scheduling and data transmission.
  • the second identification information of the terminal may be C-RNTI.
  • the terminal acquires the second identification information of the terminal based on the received indication information or the communication protocol.
  • the DCI dynamic signaling received by the terminal carries the second identification information of the terminal.
  • the MAC CE received by the terminal carries the second identification information of the terminal.
  • the RRC signaling received by the terminal carries the second identification information of the terminal.
  • Still another manner is to use the same second identification information of the terminal (that is, C-RNTI) before the RRC connection is released according to the communication protocol.
  • the embodiments of the present disclosure also provide a random access method.
  • Fig. 5 is a flowchart showing a random access method according to an exemplary embodiment. As shown in Figure 5, the random access method is used in network equipment, including the following steps.
  • step S31 the uplink message for random access sent by the terminal based on the semi-static transmission resource is received.
  • the semi-static transmission resource is a semi-static transmission resource used for the SDT of the inactive small data packet transmission.
  • the terminal determines the semi-static transmission resource for data transmission, and sends an uplink message for random access based on the semi-static transmission resource for data transmission when the terminal needs to enter the RRC connection state.
  • the terminal configures semi-static transmission resources for data transmission, msg.3 for random access may be initiated based on the semi-static transmission resources.
  • the semi-static transmission resource used for the inactive small data packet transmission SDT may be determined by the terminal based on the configuration of the network side device, or based on pre-stored configuration information, or determined based on the communication protocol.
  • the method includes an optional step:
  • step S32 a configuration message is sent, the configuration message is used to instruct the terminal to perform semi-static transmission resources for small data packet transmission SDT in an inactive state.
  • This step S32 may not be executed, may also be executed before step S31 is executed, or may be executed after step S31 is executed.
  • the uplink message for random access is sent based on the semi-static transmission resource for data transmission.
  • the terminal needs to enter the RRC connection state, it needs to request the network device to access the network and establish a network connection; at this time, the terminal can use the semi-static transmission resources used to transmit SDT in the inactive state small data packet to send random access msg.3 to achieve random access.
  • the terminal is configured with semi-static transmission resources for inactive small data packet transmission SDT, msg.3 for random access may be initiated based on the semi-static transmission resources.
  • the semi-static transmission resource used for the inactive small data packet transmission SDT may be determined by the terminal based on the configuration of the network side device, or based on pre-stored configuration information, or determined based on the communication protocol.
  • the msg.3 for random access can be received based on semi-static transmission resources to implement random access, which shortens the process of terminal random access and achieves the effect of saving terminal energy consumption.
  • the uplink message includes an RRC connection recovery request and/or an RRC connection establishment request.
  • the terminal may be configured and authorized to transmit small data packets in an inactive state.
  • the semi-static transmission resource configured for the terminal small data packet transmission is the semi-static transmission resource of the terminal RRC inactive state small data packet transmission.
  • the uplink message does not include the first identification information of the terminal.
  • the first identification information of the terminal is identification information of the terminal in an RRC inactive state.
  • the first identification information is i-RNTI.
  • the terminal when the terminal sends the uplink message for random access based on the semi-static transmission resource, it may implicitly confirm the first identification information of the terminal based on the mapping relationship between the position of the semi-static transmission resource and the identification information of the terminal, that is, based on The location of the semi-static transmission resource implicitly determines the i-RNTI of the terminal. Among them, the i-RNT is used for random access of the terminal.
  • the network device after receiving the uplink message containing the RRC connection recovery request and/or the RRC connection establishment request, the network device will issue DCI through CSS or USS to determine that the random access of the terminal is completed, and its execution steps Refer to Figure 6.
  • Fig. 6 is a flowchart showing a random access method according to an exemplary embodiment. As shown in Figure 6, the random access method is used in network equipment, including the following steps.
  • step S41 DCI is sent in response to receiving the uplink message.
  • the uplink message may be an uplink message of random access sent by the terminal using the semi-static transmission resource of the inactive small data packet transmission SDT.
  • the downlink data transmission scheduled by the DCI includes RRC connection recovery information or RRC connection establishment information indicating the terminal.
  • the network device sends the DCI based on the CSS/USS, which is used for the msg.4 scheduling of the random access of the terminal. If the ACK sent by the terminal is received, it is confirmed that the random access procedure of the terminal is completed. If the ACK sent by the terminal is not received, it is confirmed that the random access process of the terminal is not completed.
  • the contention resolution information may not be included in the RRC connection recovery message or the RRC connection establishment information.
  • the network device can determine the terminal that initiates the random access request based on the mapping relationship between the semi-static transmission resource position used for small data packet transmission and the terminal identification information, so that the second identification information can be uniquely assigned to the terminal.
  • the network device may send indication information, wherein the indication message includes the second identification information of the terminal, and the second identification information of the terminal Used for data scheduling and data transmission.
  • the second identification information of the terminal may be C-RNTI.
  • the network device sends an indication message to configure the second identification information for the terminal.
  • One way may be to send DCI to the terminal, and the DCI dynamically schedules the second identification information of the terminal carried in the signaling.
  • one way is to carry the second identification information of the terminal in the MAC CE sent to the terminal.
  • the terminal is configured with semi-static uplink transmission resources.
  • the terminal wants to enter the RRC_CONNECTED state, it can directly send msg.3 through the semi-static uplink transmission resource configured by the base station, so as to shorten the random access process.
  • the terminal wants to enter the RRC_CONNECTED state, it can directly send msg.3 through the semi-static uplink transmission resource configured by the base station, so as to shorten the random access process.
  • the terminal When the terminal intends to perform random access, it first needs to determine whether the TA is valid. When TA is valid, send RRCResumeRequest to the base station through the semi-static resources configured for SDT to initiate random access;
  • the base station After receiving the msg.3 sent by the terminal through the semi-statically configured uplink resources, the base station will send DCI through the CSS/USS to perform msg.4 scheduling.
  • msg.4 contains RRC resume; correspondingly, after receiving RRCresume, the terminal feeds back ACK, and the random access process is completed.
  • step (1) and step (2) are executed by the terminal and the base station respectively; in the above embodiment, the two steps are written together as an example.
  • the method it executes is:
  • the terminal In response to the terminal performing random access and the TA of the terminal is valid, the terminal sends a RRCResumeRequest to the base station through the semi-static resources configured for SDT to initiate random access; and the terminal receives the RRCResumeRequest issued by the base station through CSS/USS DCI, perform msg.4 scheduling; wherein the msg.4 includes RRC resume; the terminal performs HARQ feedback according to the RRC resume (feedback ACK if received); random access is completed.
  • the method it executes is:
  • DCI is delivered through CSS/USS, and msg.4 scheduling is performed; wherein the msg.4 includes RRC resume ;
  • the receiving terminal performs HARQ feedback according to the RRC resume (feedback ACK if received).
  • information such as i-RNTI may not be included in the RRCResumeRequest message; similarly, information such as Contention Resolution Identity MAC CE may not be included in msg.4.
  • the base station will allocate a C-RNTI to the terminal through msg.4.
  • the C-RNTI can be carried by DCI, or by RRCResume or MAC CE.
  • the transmitted signaling may be:
  • the embodiment of the present disclosure also provides a random access device.
  • the random access apparatus includes corresponding hardware structures and/or software modules for performing various functions.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 7 is a block diagram of a random access device according to an exemplary embodiment.
  • the random access device 100 is applied to a terminal, and includes a processing module 101 and a sending module 102 .
  • the processing module 101 is configured to determine semi-static transmission resources.
  • the sending module 102 is configured to send uplink messages for random access based on semi-static transmission resources.
  • the uplink message includes a radio resource control RRC connection recovery request and/or an RRC connection establishment request.
  • the method before sending the uplink message for random access based on the semi-static transmission resource, the method further includes:
  • the semi-static transmission resource is a semi-static transmission resource used for transmission of small data packets in an inactive state.
  • the uplink message does not include the first identification information of the terminal, and the first identification information of the terminal is the identification information of the terminal in an RRC inactive state.
  • the first identification information of the terminal is determined based on the position of the semi-static transmission resource bearing the uplink message.
  • the device further includes: a receiving module 103 .
  • the receiving module 103 is configured to receive downlink control information DCI. In response to the RRC connection recovery information or RRC connection establishment information contained in the downlink data transmission scheduled by the DCI, a reception confirmation message is sent.
  • the contention resolution information is not included in the RRC connection recovery message or the RRC connection establishment information.
  • the processing module 101 is further configured to acquire second identification information of the terminal based on the received indication information or communication protocol, and the second identification information of the terminal is used for data scheduling and data transmission.
  • Fig. 8 is a block diagram of a random access device according to an exemplary embodiment.
  • the random access apparatus 200 is applied to network equipment and includes a receiving module 201 .
  • the receiving module 201 is configured to receive an uplink message for random access sent by a terminal based on a semi-static transmission resource.
  • the uplink message includes an RRC connection recovery request and/or an RRC connection establishment request.
  • the random access device further includes a processing module 202;
  • the processing module 202 is configured to determine the semi-static transmission resources used for the transmission of the small data packet in the inactive state.
  • the uplink message does not include the first identification information of the terminal, and the first identification information of the terminal is the identification information of the terminal in an RRC inactive state.
  • the first identification information of the terminal is determined based on the position of the semi-static resource bearing the uplink message.
  • the device further includes: a sending module 203 .
  • the sending module 203 is configured to send DCI in response to receiving the uplink message, and the downlink data transmission scheduled by the DCI includes RRC connection recovery information or RRC connection establishment information indicating the terminal.
  • the contention resolution information is not included in the RRC connection recovery message or the RRC connection establishment information.
  • the sending module 203 is further configured to send an indication message, where the indication message includes the second identification information of the terminal, and the second identification information of the terminal is used for data scheduling and data transmission.
  • Fig. 9 is a block diagram of an apparatus 300 for random access according to an exemplary embodiment.
  • the apparatus 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • apparatus 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input/output (I/O) interface 312, sensor component 314, and communication component 316 .
  • the processing component 302 generally controls the overall operations of the device 300, such as those associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 302 may include one or more modules that facilitate interaction between processing component 302 and other components. For example, processing component 302 may include a multimedia module to facilitate interaction between multimedia component 308 and processing component 302 .
  • the memory 304 is configured to store various types of data to support operations at the device 300 . Examples of such data include instructions for any application or method operating on device 300, contact data, phonebook data, messages, pictures, videos, and the like.
  • the memory 304 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power component 306 provides power to various components of device 300 .
  • Power components 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for device 300 .
  • the multimedia component 308 includes a screen that provides an output interface between the device 300 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also detect a duration and pressure associated with the touch or swipe operation.
  • the multimedia component 308 includes a front camera and/or a rear camera. When the device 300 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.
  • the audio component 310 is configured to output and/or input audio signals.
  • the audio component 310 includes a microphone (MIC), which is configured to receive external audio signals when the device 300 is in operation modes, such as call mode, recording mode, and voice recognition mode. Received audio signals may be further stored in memory 304 or sent via communication component 316 .
  • the audio component 310 also includes a speaker for outputting audio signals.
  • the I/O interface 312 provides an interface between the processing component 302 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.
  • Sensor assembly 314 includes one or more sensors for providing various aspects of status assessment for device 300 .
  • the sensor component 314 can detect the open/closed state of the device 300, the relative positioning of components, such as the display and keypad of the device 300, and the sensor component 314 can also detect a change in the position of the device 300 or a component of the device 300 , the presence or absence of user contact with the device 300 , the device 300 orientation or acceleration/deceleration and the temperature change of the device 300 .
  • the sensor assembly 314 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 314 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 316 is configured to facilitate wired or wireless communication between the apparatus 300 and other devices.
  • the device 300 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 316 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 316 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wide Band
  • Bluetooth Bluetooth
  • apparatus 300 may be programmed by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • non-transitory computer-readable storage medium including instructions, such as the memory 304 including instructions, which can be executed by the processor 320 of the device 300 to implement the above method.
  • the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • Fig. 10 is a block diagram of an apparatus 400 for random access according to an exemplary embodiment.
  • the apparatus 400 may be provided as a server.
  • apparatus 400 includes processing component 422 , which further includes one or more processors, and a memory resource represented by memory 432 for storing instructions executable by processing component 422 , such as application programs.
  • the application program stored in memory 432 may include one or more modules each corresponding to a set of instructions.
  • the processing component 422 is configured to execute instructions to perform the above method.
  • Device 400 may also include a power component 426 configured to perform power management of device 400 , a wired or wireless network interface 450 configured to connect device 400 to a network, and an input-output (I/O) interface 458 .
  • the device 400 can operate based on an operating system stored in the memory 432, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
  • “plurality” in the present disclosure refers to two or more, and other quantifiers are similar thereto.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.
  • the character “/” generally indicates that the contextual objects are an “or” relationship.
  • the singular forms “a”, “said” and “the” are also intended to include the plural unless the context clearly dictates otherwise.
  • first, second, etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not imply a specific order or degree of importance. In fact, expressions such as “first” and “second” can be used interchangeably.
  • first information may also be called second information, and similarly, second information may also be called first information.

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Abstract

本公开是关于一种随机接入方法、随机接入装置及存储介质。其中，随机接入方法，应用于终端，所述方法包括：确定半静态传输资源；基于所述半静态传输资源，发送用于随机接入的上行消息。通过本公开可以减少随机接入的步骤，节省终端能耗。

Description

一种随机接入方法、随机接入装置及存储介质 技术领域
本公开涉及无线通信技术领域，尤其涉及一种随机接入方法、随机接入装置及存储介质。
背景技术
相关技术中，终端可能需要基于竞争的随机接入方式执行随机接入过程，例如采用2步随机接入方式执行随机接入过程或采用4步随机接入方式执行随机接入过程。然而，无论采用何种方式进行随机接入都需要基于终端自身标识进行随机接入竞争解决，在随机接入竞争解决成功的情况下，确定终端进入连接态。
基于竞争的随机接入方式步骤复杂，尤其是4步随机接入方式，具有较大的随机接入时延，终端功耗大。
发明内容
为克服相关技术中存在的问题，本公开提供一种随机接入方法、随机接入装置及存储介质。
根据本公开实施例的第一方面，提供一种随机接入方法，应用于终端，所述方法包括：
确定半静态传输资源；基于所述半静态传输资源，发送用于随机接入的上行消息。
一种实施方式中，所述上行消息包括无线资源控制RRC连接恢复请求和/或RRC连接建立请求。
一种实施方式中，所述基于所述半静态传输资源，发送用于随机接入的上行消息之前，所述方法还包括：
确定随机接入上行数据传输的定时提前值有效。
一种实施方式中，所述半静态传输资源为用于非激活态小数据包传输的半静态传输资源。
一种实施方式中，所述上行消息中不包含终端第一标识信息，所述终端第一标识信息是RRC非激活态下的终端标识信息。
一种实施方式中，所述终端第一标识信息基于承载所述上行消息的半静态传输资源位置确定。
一种实施方式中，所述方法还包括：
接收下行控制信息DCI；响应于所述DCI调度的下行数据传输中包含RRC连接恢复信息或RRC连接建立信息，发送接收确认消息。
一种实施方式中，所述RRC连接恢复消息或RRC连接建立信息中不包括竞争解决信息。
一种实施方式中，所述方法还包括：
基于接收到的指示信息或通信协议，获取终端第二标识信息，所述终端第二标识信息用于进行数据调度和数据传输。
根据本公开实施例的第二方面，提供一种随机接入方法，应用于网络设备，所述方法包括：
接收终端基于半静态传输资源发送的用于随机接入的上行消息。
一种实施方式中，所述上行消息包括RRC连接恢复请求和/或RRC连接建立请求。
一种实施方式中，所述半静态传输资源为用于非激活态小数据包传输的半静态传输资源。
一种实施方式中，所述上行消息中不包含终端第一标识信息，所述终端第一标识信息是RRC非激活态下的终端标识信息。
一种实施方式中，所述终端第一标识信息基于承载所述上行消息的半静态资源位置确定。
一种实施方式中，所述方法还包括：
响应于接收到所述上行消息，发送DCI，所述DCI调度的下行数据传输中包含指示终端的RRC连接恢复信息或RRC连接建立信息。
一种实施方式中，所述RRC连接恢复消息或RRC连接建立信息中不包括竞争解决信息。
一种实施方式中，所述方法还包括：
发送指示消息，所述指示消息中包括终端第二标识信息，所述终端第二标识信息用于进行数据调度和数据传输。
根据本公开实施例的第三方面，提供一种随机接入装置，应用于终端，所述装置包括：
处理模块，用于确定半静态传输资源；发送模块，用于基于所述半静态传输资源，发送用于随机接入的上行消息。
一种实施方式中，所述上行消息包括无线资源控制RRC连接恢复请求和/或RRC连接建立请求。
一种实施方式中，所述基于所述半静态传输资源，发送用于随机接入的上行消息之前，所述方法还包括：
确定随机接入上行数据传输的定时提前值有效。
一种实施方式中，所述半静态传输资源为用于非激活态小数据包传输的半静态传输资源。
一种实施方式中，所述上行消息中不包含终端第一标识信息，所述终端第一标识信息是RRC非激活态下的终端标识信息。
一种实施方式中，所述终端第一标识信息基于承载所述上行消息的半静态传输资源位置确定。
一种实施方式中，所述装置还包括：接收模块；
所述接收模块，用于接收下行控制信息DCI；响应于所述DCI调度的下行数据传输中包含RRC连接恢复信息或RRC连接建立信息，发送接收确认消息。
一种实施方式中，所述RRC连接恢复消息或RRC连接建立信息中不包括竞争解决信息。
一种实施方式中，所述处理模块还用于：
基于接收到的指示信息或通信协议，获取终端第二标识信息，所述终端第二标识信息用于进行数据调度和数据传输。
根据本公开实施例的第四方面，提供一种随机接入装置，应用于网络设备，所述装置包括：
接收模块，用于接收终端基于半静态传输资源发送的用于随机接入的上行消息。
一种实施方式中，所述上行消息包括RRC连接恢复请求和/或RRC连接建立请求。
一种实施方式中，所述半静态传输资源为用于非激活态小数据包传输的半静态传输资源。
一种实施方式中，所述上行消息中不包含终端第一标识信息，所述终端第一标识信息是RRC非激活态下的终端标识信息。
一种实施方式中，所述终端第一标识信息基于承载所述上行消息的半静态资源位置确定。
一种实施方式中，所述装置还包括：发送模块；
所述发送模块，用于响应于接收到所述上行消息，发送DCI，所述DCI调度的下行数据传输中包含指示终端的RRC连接恢复信息或RRC连接建立信息。
一种实施方式中，所述RRC连接恢复消息或RRC连接建立信息中不包括竞争解决信息。
一种实施方式中，所述发送模块，还用于：
发送指示消息，所述指示消息中包括终端第二标识信息，所述终端第二标识信息用于 进行数据调度和数据传输。
根据本公开实施例的第五方面，提供一种随机接入装置，包括：
处理器；用于存储处理器可执行指令的存储器；其中，所述处理器被配置为：执行第一方面或第一方面中任意一种实施方式所述的随机接入方法，或执行第二方面或第二方面中任意一种实施方式所述的随机接入方法。
根据本公开实施例的第六方面，提供一种存储介质，所述存储介质中存储有指令，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行第一方面或第一方面中任意一种实施方式所述的随机接入方法，或使得移动终端能够执行第二方面或第方面中任意一种实施方式所述的随机接入方法。
本公开的实施例提供的技术方案可以包括以下有益效果：终端基于半静态传输资源发送用于随机接入的上行消息，可以减少随机接入的步骤，节省终端能耗。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种网络设备与终端的通信系统架构图。
图2是根据一示例性实施例示出的一种随机接入方式的流程图。
图3是根据一示例性实施例示出的一种随机接入方法的流程图。
图4是根据一示例性实施例示出的一种随机接入方法的流程图。
图5是根据一示例性实施例示出的一种随机接入方法的流程图。
图6是根据一示例性实施例示出的一种随机接入方法的流程图。
图7是根据一示例性实施例示出的一种随机接入装置框图。
图8是根据一示例性实施例示出的一种随机接入装置框图。
图9是根据一示例性实施例示出的一种用于随机接入的装置的框图。
图10是根据一示例性实施例示出的一种用于随机接入的装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权 利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
图1是根据一示例性实施例示出的一种网络设备与终端的通信系统架构图。本公开提供的通信方法可以应用于图1所示的通信系统架构图中。如图1所示，网络侧设备可以基于图1所示的架构发送信令。
可以理解的是，图1所示的网络设备与终端的通信系统仅是进行示意性说明，无线通信系统中还可包括其它网络设备，例如还可以包括核心网设备、无线中继设备和无线回传设备等，在图1中未画出。本公开实施例对该无线通信系统中包括的网络设备数量和终端数量不做限定。
进一步可以理解的是，本公开实施例的无线通信系统，是一种提供无线通信功能的网络。无线通信系统可以采用不同的通信技术，例如码分多址(code division multiple access,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络。
进一步的，本公开中涉及的网络设备也可以称为无线接入网设备。该无线接入网设备可以是：基站、演进型基站(evolved node B，基站)、家庭基站、无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为NR系统中的gNB，或者，还可以是构成基站的组件或一部分设备等。当为车联网(V2X)通信系统时，网络设备还可以是车载设备。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。
进一步的，本公开中涉及的终端，也可以称为终端设备、用户设备(User Equipment，UE)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信 系统时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
在新空口(New Radio，NR)的讨论中提出，在非激活(inactive)态下支持小数据包传输(Small Data Transmission，SDT)，以节省终端能耗。即，终端不用进入连接态即可完成数据传输，以避免造成时频资源的浪费，缩短数据传输时延，同时节省终端能耗。其中，SDT一般支持两种方式，包括基于随机接入过程的SDT和基于半静态配置的SDT。
基于半静态配置的SDT为，基站在由无线资源控制(Radio Resource Control，RRC)连接态(connected)状态转换为RRC inactive状态时，在RRC连接释放(RRC release)消息中携带SDT传输所需的半静态时频域资源分配信息以及定时提前值(Time Advance，TA)有效性判断等信息。终端在inactive状态有上行数据要传输时，首先进行TA有效性判断、覆盖条件以及数据包大小的判断，当TA有效，覆盖条件以及数据包大小分别满足阈值时，使用基站配置的半静态资源进行小数据包的传输。
基于随机接入过程的SDT又分为两种方式，分别为基于两步(2-step)随机接入信道(Random Access Channel，RACH)的SDT和基于4-step RACH的SDT。其中，基于2-step RACH的SDT，小数据包会在随机接入请求消息(msgA)的物理上行共享信道(Physical Uplink Shared CHannel，PUSCH)资源中传输；而对于基于4-step RACH的SDT，小数据包会在msg3中携带。对于基于RACH的SDT同样需要进行数据包大小的判断，只有当数据包大小小于一定门限值时，才能在随机接入过程中进行小数据包的传输，否则，需要通过RACH过程进入连接态后进行小数据包的传输。除数据包大小的限制外，终端在进行小数据包的传输之前还要将当前的SS-RSRP同RSRP阈值进行比较，只有当前SS-RSRP大于RSRP阈值时，才进行小数据包的传输。此处RSRP阈值比较的目的是保证只有在良好的覆盖条件下才能进行SDT的传输，以免造成上行传输资源的浪费。
对于配置授权(Configuration，CG)的SDT，在相关技术中提出，可以为其配置用户专用搜索空间(UE-special search space，USS)，用于小数据包的重传调度以及后续下行数据调度等。并且为了终端后续的传输，还提出在非激活态为每个终端对应配置小区无线网络临时标识(Cell-Radio Network Temporary Identifier，C-RNTI)。其中，在非激活态为每个终端对应配置的C-RNTI可以与终端RRC连接态(RRC_CONNECTED)的C-RNTI相同，也可以由网络侧通过显示信令配置。
另一方面，相关技术中，4-step RACH基于竞争的随机接入方式可参考图2。图2是根据一示例性实施例示出的一种随机接入方式的流程图。如图2所示，第一步，终端需要通过物理随机接入信道(Physical Random Access Channel，PRACH)资源向网络设备发送随 机接入请求。第二步，网络设备通过随机接入响应消息(Random access response，RAR)，向终端分配临时小区无线网络临时标识(Temporary Cell-Radio Network Temporary Identifier，TC-RNTI)，以及传输消息3(msg.3)所需的上行(Up Link，UL)资源。终端通过随机接入无线网络临时标识符(Random Access Radio Network Temporary Identifier，RA-RNTI)盲检调度RAR的物理下行控制信道(Physical Downlink Control Channel，PDCCH)。第三步，终端向网络设备发送msg.3。其中msg.3中包括RRC恢复请求(resume Request)等高层信令。同时承载自身标识i-RNTI或short i-RNTI，开始随机接入竞争解决。第四步，终端通过第二步中获取的TC-RNTI盲检调度msg.4的下行控制信息(Downlink Control Information，DCI)，若解码成功，且msg.4中包含的UE竞争解决标识媒体接入层控制单元(MAC Control Element，MAC CE)中的内容与msg.3RRC Resume Request的部分比特一致(一般为前48比特)，则竞争解决成功，终端将TC-RNTI变为C-RNTI，并用于连接态的数据传输。
根据上述实施例可知，相关技术中，基于竞争的随机接入方式，例如4-step RACH，步骤复杂，具有较大的随机接入时延，同时不利于终端节能。
为减少随机接入的步骤，节省终端能耗，本申请提出一种随机接入方法，利用为终端SDT配置半静态传输资源发起随机接入。通过在为终端SDT配置半静态传输资源上发起随机接入可以直接发送上行消息的msg.3，从而缩短随机接入过程，实现节省终端能耗的效果。
图3是根据一示例性实施例示出的一种随机接入方法的流程图。如图3所示，随机接入方法用于终端中，包括以下步骤。
在步骤S11中，确定半静态传输资源。
在步骤S12中，基于半静态传输资源，发送用于随机接入的上行消息。
在本公开实施例中，该半静态传输资源为用于非激活态小数据包传输SDT的半静态传输资源。
在本公开实施例中，终端确定用于非激活态小数据包传输SDT的半静态传输资源；在终端需要进入RRC连接态时，基于用于数据传输的半静态传输资源，发送用于随机接入的上行消息。终端需要进入RRC连接态时，需要向网络设备请求接入到网络，建立网络连接；此时终端可以利用用于在非激活态小数据包传输SDT的半静态传输资源，发送用于随机接入的msg.3以实现随机接入。换言之，在本公开中，若终端配置了用于非激活态小数据包传输SDT的半静态传输资源，则可以基于半静态传输资源发起用于随机接入的msg.3。其中，用于非激活态小数据包传输SDT的半静态传输资源可以是终端基于网络侧 设备的配置确定的，或是基于预存的配置信息确定的，或是基于通信协议确定的。
通过本公开提出的随机接入方法，可以基于半静态传输资源，发送用于随机接入的msg.3以实现随机接入，缩短了随机接入的过程，达到实现节省终端能耗的效果。
在本公开实施例中，上行消息包括RRC连接恢复请求和/或RRC连接建立请求。终端可以是配置授权了在非激活态可以进行小数据包传输的终端。
在本公开一些实施例中，终端需要进行随机接入时，需要确定用于随机接入上行数据传输的定时提前值，在确定该定时提前值有效的情况下，通过为终端小数据包传输配置的半静态传输资源向网络设备(例如，基站)发送RRC连接恢复请求和/或RRC连接建立请求，以发起随机接入。
其中，在本公开实施例中为终端小数据包传输配置的半静态传输资源为终端RRC非激活态小数据包传输的半静态传输资源。
在本公开一些实施例中，上行消息中不包含终端第一标识信息。其中，终端第一标识信息是RRC非激活态下的终端标识信息。例如，第一标识信息为i-RNTI。
需要说明的是，终端基于网络设备配置的用于小数据包传输的半静态传输资源位置与终端的标识信息具有映射关系。即，终端在基于半静态传输资源发送用于随机接入的上行消息，则可以基于半静态传输资源位置与终端的标识信息具有的映射关系，隐性指示网络设备终端的第一标识信息，即，基于半静态传输资源的位置隐性指示网络设备终端的i-RNTI。其中，i-RNT用于终端进行随机接入。
在本公开实施例中，终端发送RRC连接恢复请求和/或RRC连接建立请求之后，将通过公共搜索空间(Common Search Space，CSS)或USS接收网络设备下发的DCI，确定随机接入完成，其执行步骤可参考图4。
图4是根据一示例性实施例示出的一种随机接入方法的流程图。如图4所示，随机接入方法用于终端中，包括以下步骤。
在步骤S21中，接收DCI。
在步骤S22中，响应于DCI调度的下行数据传输中包含RRC连接恢复信息或RRC连接建立信息，发送接收确认消息。
在本公开实施例中，终端基于CSS/USS接收的DCI，进行随机接入的msg.4调度，并确定msg.4中包含的RRC信息。在一种实现方式中，若msg.4中包含RRC连接恢复信息或RRC连接建立信息，则向基站反馈接收确认消息(Acknowledge character，ACK)，随机接入过程完成。在另一种实现方式中，若msg.4中没有包含RRC连接恢复信息或RRC连接建立信息，则不发送ACK(或是发送NACK)，随机接入过程未完成。
在本公开实施例中，该DCI是：基站根据接收到的终端发送的随机接入的上行消息后，发送的DCI；其中该上行消息是终端利用非激活态小数据包传输SDT的半静态传输资源发送的。
在本公开实施例中，RRC连接恢复消息或RRC连接建立信息中可以不包括竞争解决信息。如上述，终端基于网络设备配置的用于小数据包传输的半静态传输资源位置与终端的标识信息具有映射关系。终端基于与终端自身一一对应的物理资源发起随机接入，则不必进行竞争解决。
在本公开实施例中，若终端在非激活态中，没有获取到终端第二标识信息，则可以基于接收的指示信息或通信协议，获取终端第二标识信息。其中，终端第二标识信息用于进行数据调度和数据传输。终端第二标识信息可以为C-RNTI。
在本公开一些实施例中，终端基于接收的指示信息或通信协议，获取终端第二标识信息，一种方式为，终端接收的DCI动态信令中携带终端第二标识信息。或者，一种方式为，终端接收的MAC CE中携带终端第二标识信息。另一方式为，终端接收的RRC信令中携带终端第二标识信息。又一方式为，根据通信协议规定，使用RRC连接释放前相同的终端第二标识信息(即，C-RNTI)。
基于相同/相似的构思，本公开实施例还提供一种随机接入方法。
图5是根据一示例性实施例示出的一种随机接入方法的流程图。如图5所示，随机接入方法用于网络设备中，包括以下步骤。
在步骤S31中，接收终端基于半静态传输资源发送的用于随机接入的上行消息。
在本公开实施例中，该半静态传输资源为用于非激活态小数据包传输SDT的半静态传输资源。
在本公开实施例中，终端确定用于数据传输的半静态传输资源，在终端需要进入RRC连接态时，基于用于数据传输的半静态传输资源，发送用于随机接入的上行消息。向网络设备请求接入到网络，建立网络连接。换言之，在本公开中，若终端配置了用于数据传输的半静态传输资源，则可以基于半静态传输资源发起用于随机接入的msg.3。其中，用于非激活态小数据包传输SDT的半静态传输资源可以是终端基于网络侧设备的配置确定的，或是基于预存的配置信息确定的，或是基于通信协议确定的。
即，所述方法包括一个可选的步骤：
步骤S32中，发送配置消息，所述配置消息用于指示终端在非激活态下进行小数据包传输SDT的半静态传输资源。
该步骤S32可以不被执行，也可以在执行步骤S31之前执行，或是在执行步骤S31之后被执行。
在本公开实施例中，在终端需要进入RRC连接态时，基于用于数据传输的半静态传输资源，发送用于随机接入的上行消息。终端需要进入RRC连接态时，需要向网络设备请求接入到网络，建立网络连接；此时终端可以利用用于在非激活态小数据包传输SDT的半静态传输资源，发送用于随机接入的msg.3以实现随机接入。换言之，在本公开中，若终端配置了用于非激活态小数据包传输SDT的半静态传输资源，则可以基于半静态传输资源发起用于随机接入的msg.3。其中，用于非激活态小数据包传输SDT的半静态传输资源可以是终端基于网络侧设备的配置确定的，或是基于预存的配置信息确定的，或是基于通信协议确定的。
通过本公开提出的随机接入方法，可以基于半静态传输资源，接收用于随机接入的msg.3以实现随机接入，缩短了终端随机接入的过程，达到节省终端能耗的效果。
在本公开实施例中，上行消息包括RRC连接恢复请求和/或RRC连接建立请求。终端可以是配置授权了在非激活态可以进行小数据包传输的终端。
在本公开实施例中为终端小数据包传输配置的半静态传输资源为终端RRC非激活态小数据包传输的半静态传输资源。
在本公开一些实施例中，上行消息中不包含终端第一标识信息。其中，终端第一标识信息是RRC非激活态下的终端标识信息。例如，第一标识信息为i-RNTI。
需要说明的是，网络设备为终端配置的用于小数据包传输的半静态传输资源位置与终端的标识信息具有映射关系。即，终端在基于半静态传输资源发送用于随机接入的上行消息，则可以基于半静态传输资源位置与终端的标识信息具有的映射关系，隐性确认终端的第一标识信息，即，基于半静态传输资源的位置隐性确定终端的i-RNTI。其中，i-RNT用于终端进行随机接入。
在本公开实施例中，网络设备接收到包含有RRC连接恢复请求和/或RRC连接建立请求的上行消息之后，将通过CSS或USS，下发DCI，以确定终端随机接入完成，其执行步骤可参考图6。
图6是根据一示例性实施例示出的一种随机接入方法的流程图。如图6所示，随机接入方法用于网络设备中，包括以下步骤。
在步骤S41中，响应于接收到上行消息，发送DCI。
其中，该上行消息可以是终端利用非激活态小数据包传输SDT的半静态传输资源发送的随机接入的上行消息。
其中，DCI调度的下行数据传输中包含指示终端的RRC连接恢复信息或RRC连接建立信息。
在本公开实施例中，网络设备基于CSS/USS发送DCI，用于终端进行随机接入的msg.4调度。若接收到终端发送的ACK，则确认终端随机接入过程完成。若没有接收到终端发送的ACK，则确认终端随机接入过程未完成。
在本公开实施例中，RRC连接恢复消息或RRC连接建立信息中可以不包括竞争解决信息。如上述，用于小数据包传输的半静态传输资源位置与终端的标识信息具有映射关系。网络设备可以基于在用于小数据包传输的半静态传输资源位置与终端标识信息具有的映射关系进行发起随机接入请求终端的确定，从而可以为终端唯一分配第二标识信息。
在本公开实施例中，网络设备若确定终端在非激活态中，没有获取到终端第二标识信息，则可发送指示信息，其中，指示消息中包括终端第二标识信息，终端第二标识信息用于进行数据调度和数据传输。其中，终端第二标识信息可以为C-RNTI。
其中，网络设备发送指示消息为终端配置第二标识信息，一种方式可以是，向终端发送DCI，由DCI动态调度信令中携带的终端第二标识信息。或者，一种方式为，向终端发送的MAC CE中携带终端第二标识信息。
在本公开实施例中，其技术方案可以简述如下：
对于CG-SDT，由于终端配置了半静态上行传输资源。这种情况下，终端如果要进入RRC_CONNECTED状态时，可以直接通过基站配置的半静态上行传输资源发送msg.3，以缩短随机接入过程。具体的，有以下设计：
(1)当终端要进行随机接入时，首先需要判断TA是否有效。在TA有效的情况下，通过为SDT配置的半静态资源向基站发送RRCResumeRequest，以发起随机接入；
(2)基站收到终端通过半静态配置的上行资源发送的msg.3后，将通过CSS/USS下发DCI，进行msg.4调度。msg.4中包含RRC resume；相应地，终端收到RRCresume后，反馈ACK，随机接入过程完成。
当然，上述的步骤(1)和步骤(2)，是分别由终端和基站各自执行的；上述实施例中，只是示例性的将两个步骤写在了一起。
具体而言，对于终端来说，其所执行的方法为：
响应于终端进行随机接入且所述终端的TA有效，则所述终端通过为SDT配置的半静态资源向基站发送RRCResumeRequest，以发起随机接入；且所述终端接收基站通过CSS/USS下发DCI，进行msg.4调度；其中所述msg.4中包括了RRC resume；所述终端根据RRC resume，进行HARQ反馈(如果收到则反馈ACK)；随机接入完成。
具体而言，对于基站来说，其所执行的方法为：
响应于基站接收到终端进行随机接入时基于通过半静态配置的上行资源发送的msg.3，通过CSS/USS下发DCI，进行msg.4调度；其中所述msg.4中包括了RRC resume；
接收终端根据该RRC resume进行的HARQ反馈(如果收到则反馈ACK)。
可选的，由于半静态上行资源与终端ID具有映射关系，因此RRCResumeRequest消息中可以不必包含i-RNTI等信息；同样地，msg.4中可以不必包含Contention Resolution Identity MAC CE等信息。
此外，若inactive态中终端尚未获取C-RNTI，基站将通过msg.4向终端分配一个C-RNTI。具体地，C-RNTI可以由DCI承载，也可以由RRCResume或MAC CE来承载。
在一种可能的实施方式中，传输的信令可以为：
Figure PCTCN2021120748-appb-000001
基于相同的构思，本公开实施例还提供一种随机接入装置。
可以理解的是，本公开实施例提供的随机接入装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图7是根据一示例性实施例示出的一种随机接入装置框图。参照图7，该随机接入装置100，应用于终端，包括处理模块101和发送模块102。
处理模块101，用于确定半静态传输资源。发送模块102，用于基于半静态传输资源，发送用于随机接入的上行消息。
在本公开实施例中，上行消息包括无线资源控制RRC连接恢复请求和/或RRC连接建 立请求。
在本公开实施例中，基于半静态传输资源，发送用于随机接入的上行消息之前，方法还包括：
确定随机接入上行数据传输的定时提前值有效。
在本公开实施例中，半静态传输资源为用于非激活态小数据包传输的半静态传输资源。
在本公开实施例中，上行消息中不包含终端第一标识信息，终端第一标识信息是RRC非激活态下的终端标识信息。
在本公开实施例中，终端第一标识信息基于承载上行消息的半静态传输资源位置确定。
在本公开实施例中，装置还包括：接收模块103。
接收模块103，用于接收下行控制信息DCI。响应于DCI调度的下行数据传输中包含RRC连接恢复信息或RRC连接建立信息，发送接收确认消息。
在本公开实施例中，RRC连接恢复消息或RRC连接建立信息中不包括竞争解决信息。
在本公开实施例中，处理模块101，还用于基于接收到的指示信息或通信协议，获取终端第二标识信息，终端第二标识信息用于进行数据调度和数据传输。
图8是根据一示例性实施例示出的一种随机接入装置框图。参照图8，该随机接入装置200，应用于网络设备，包括接收模块201。
接收模块201，用于接收终端基于半静态传输资源发送的用于随机接入的上行消息。
在本公开实施例中，上行消息包括RRC连接恢复请求和/或RRC连接建立请求。
在本公开实施例中，随机接入装置还包括处理模块202；
处理模块202，用于确定用于非激活态小数据包传输的半静态传输资源。
在本公开实施例中，上行消息中不包含终端第一标识信息，终端第一标识信息是RRC非激活态下的终端标识信息。
在本公开实施例中，终端第一标识信息基于承载上行消息的半静态资源位置确定。
在本公开实施例中，装置还包括：发送模块203。
发送模块203，用于响应于接收到上行消息，发送DCI，DCI调度的下行数据传输中包含指示终端的RRC连接恢复信息或RRC连接建立信息。
在本公开实施例中，RRC连接恢复消息或RRC连接建立信息中不包括竞争解决信息。
在本公开实施例中，发送模块203，还用于发送指示消息，指示消息中包括终端第二标识信息，终端第二标识信息用于进行数据调度和数据传输。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图9是根据一示例性实施例示出的一种用于随机接入的装置300的框图。例如，装置300可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图9，装置300可以包括以下一个或多个组件：处理组件302，存储器304，电力组件306，多媒体组件308，音频组件310，输入/输出(I/O)接口312，传感器组件314，以及通信组件316。
处理组件302通常控制装置300的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件302可以包括一个或多个处理器320来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件302可以包括一个或多个模块，便于处理组件302和其他组件之间的交互。例如，处理组件302可以包括多媒体模块，以方便多媒体组件308和处理组件302之间的交互。
存储器304被配置为存储各种类型的数据以支持在装置300的操作。这些数据的示例包括用于在装置300上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器304可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件306为装置300的各种组件提供电力。电力组件306可以包括电源管理系统，一个或多个电源，及其他与为装置300生成、管理和分配电力相关联的组件。
多媒体组件308包括在所述装置300和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件308包括一个前置摄像头和/或后置摄像头。当装置300处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件310被配置为输出和/或输入音频信号。例如，音频组件310包括一个麦克风(MIC)，当装置300处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被 配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器304或经由通信组件316发送。在一些实施例中，音频组件310还包括一个扬声器，用于输出音频信号。
I/O接口312为处理组件302和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件314包括一个或多个传感器，用于为装置300提供各个方面的状态评估。例如，传感器组件314可以检测到装置300的打开/关闭状态，组件的相对定位，例如所述组件为装置300的显示器和小键盘，传感器组件314还可以检测装置300或装置300一个组件的位置改变，用户与装置300接触的存在或不存在，装置300方位或加速/减速和装置300的温度变化。传感器组件314可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件314还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件314还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件316被配置为便于装置300和其他设备之间有线或无线方式的通信。装置300可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件316经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件316还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置300可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器304，上述指令可由装置300的处理器320执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
图10是根据一示例性实施例示出的一种用于随机接入的装置400的框图。例如，装置400可以被提供为一服务器。参照图10，装置400包括处理组件422，其进一步包括一个或多个处理器，以及由存储器432所代表的存储器资源，用于存储可由处理组件422的执行的指令，例如应用程序。存储器432中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件422被配置为执行指令，以执行上述方法。
装置400还可以包括一个电源组件426被配置为执行装置400的电源管理，一个有线或无线网络接口450被配置为将装置400连接到网络，和一个输入输出(I/O)接口458。装置400可以操作基于存储在存储器432的操作系统，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM或类似。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开，并不表示特定的顺序或者重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利范围指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利范围来限制。

Claims (21)

  1. 一种随机接入方法，其特征在于，应用于终端，所述方法包括：
    确定半静态传输资源；
    基于所述半静态传输资源，发送用于随机接入的上行消息。
  2. 根据权利要求1所述的随机接入方法，其特征在于，所述上行消息包括无线资源控制RRC连接恢复请求和/或RRC连接建立请求。
  3. 根据权利要求2所述的随机接入方法，其特征在于，所述基于所述半静态传输资源，发送用于随机接入的上行消息之前，所述方法还包括：
    确定随机接入上行数据传输的定时提前值有效。
  4. 根据权利要求1所述的随机接入方法，其特征在于，所述半静态传输资源为用于非激活态小数据包传输的半静态传输资源。
  5. 根据权利要求1所述的随机接入方法，其特征在于，所述上行消息中不包含终端第一标识信息，所述终端第一标识信息是RRC非激活态下的终端标识信息。
  6. 根据权利要求5所述的随机接入方法，其特征在于，所述终端第一标识信息基于承载所述上行消息的半静态传输资源位置确定。
  7. 根据权利要求1所述的随机接入方法，其特征在于，所述方法还包括：
    接收下行控制信息DCI；
    响应于所述DCI调度的下行数据传输中包含RRC连接恢复信息或RRC连接建立信息，发送接收确认消息。
  8. 根据权利要求7所述的随机接入方法，其特征在于，所述RRC连接恢复消息或RRC连接建立信息中不包括竞争解决信息。
  9. 根据权利要求1所述的随机接入方法，其特征在于，所述方法还包括：
    基于接收到的指示信息或通信协议，获取终端第二标识信息，所述终端第二标识信息用于进行数据调度和数据传输。
  10. 一种随机接入方法，其特征在于，应用于网络设备，所述方法包括：
    接收终端基于半静态传输资源发送的用于随机接入的上行消息。
  11. 根据权利要求10所述的随机接入方法，其特征在于，所述上行消息包括RRC连接恢复请求和/或RRC连接建立请求。
  12. 根据权利要求10所述的随机接入方法，其特征在于，所述半静态传输资源为用于非激活态小数据包传输的半静态传输资源。
  13. 根据权利要求10所述的随机接入方法，其特征在于，所述上行消息中不包含终端第一标识信息，所述终端第一标识信息是RRC非激活态下的终端标识信息。
  14. 根据权利要求13所述的随机接入方法，其特征在于，所述终端第一标识信息基于承载所述上行消息的半静态资源位置确定。
  15. 根据权利要求10所述的随机接入方法，其特征在于，所述方法还包括：
    响应于接收到所述上行消息，发送DCI，所述DCI调度的下行数据传输中包含指示终端的RRC连接恢复信息或RRC连接建立信息。
  16. 根据权利要求15所述的随机接入方法，其特征在于，所述RRC连接恢复消息或RRC连接建立信息中不包括竞争解决信息。
  17. 根据权利要求13所述的随机接入方法，其特征在于，所述方法还包括：
    发送指示消息，所述指示消息中包括终端第二标识信息，所述终端第二标识信息用于进行数据调度和数据传输。
  18. 一种随机接入装置，其特征在于，应用于终端，所述装置包括：
    处理模块，用于确定半静态传输资源；
    发送模块，用于基于所述半静态传输资源，发送用于随机接入的上行消息。
  19. 一种随机接入装置，其特征在于，应用于网络设备，所述装置包括：
    接收模块，用于接收终端基于半静态传输资源发送的用于随机接入的上行消息。
  20. 一种随机接入装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1-9中任意一项所述的随机接入方法，或执行权利要求10-17中任意一项所述的随机接入方法。
  21. 一种存储介质，其特征在于，所述存储介质中存储有指令，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行权利要求1-9中任意一项所述的随机接入方法，或使得移动终端能够执行权利要求10-17中任意一项所述的随机接入方法。
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