WO2020215261A1 - 一种随机接入方法及装置、用户设备、网络设备 - Google Patents

一种随机接入方法及装置、用户设备、网络设备 Download PDF

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Publication number
WO2020215261A1
WO2020215261A1 PCT/CN2019/084154 CN2019084154W WO2020215261A1 WO 2020215261 A1 WO2020215261 A1 WO 2020215261A1 CN 2019084154 W CN2019084154 W CN 2019084154W WO 2020215261 A1 WO2020215261 A1 WO 2020215261A1
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WIPO (PCT)
Prior art keywords
mac
information
message
random access
subheader
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PCT/CN2019/084154
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English (en)
French (fr)
Inventor
石聪
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP19925662.9A priority Critical patent/EP3930415B1/en
Priority to PCT/CN2019/084154 priority patent/WO2020215261A1/zh
Priority to CN202210100172.0A priority patent/CN114222350B/zh
Priority to KR1020217033772A priority patent/KR20210151106A/ko
Priority to CN201980095425.6A priority patent/CN113711682A/zh
Priority to JP2021561726A priority patent/JP7249434B2/ja
Publication of WO2020215261A1 publication Critical patent/WO2020215261A1/zh
Priority to US17/475,368 priority patent/US11438936B2/en
Priority to US17/887,511 priority patent/US20220394760A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/02Access restriction performed under specific conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/004Transmission of channel access control information in the uplink, i.e. towards network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02Data link layer protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • H04W74/0841Random access procedures, e.g. with 4-step access with collision treatment
    • H04W74/085Random access procedures, e.g. with 4-step access with collision treatment collision avoidance

Definitions

  • the embodiments of the present application relate to the field of mobile communication technology, and specifically relate to a random access method and device, user equipment, and network equipment.
  • the random access process uses a four-step random access process.
  • the four-step random access process in the LTE system is still used.
  • the msg1 and msg3 in the four-step random access process are transmitted through msgA in the two-step random access process
  • the msg2 and msg4 in the four-step random access process are transmitted through msgB in the two-step random access process. How to design the msgB in the two-step random access process to realize the normal random access process is a problem to be solved.
  • the embodiments of the application provide a random access method and device, user equipment, and network equipment.
  • the user equipment After the user equipment (User Equipment, UE) sends the first message, it detects the scheduling instruction of the second message in the first window;
  • the second message includes at least one of the following: a first conflict resolution identifier, a second conflict resolution identifier, first indication information, and second indication information, wherein the first conflict resolution identifier is used for conflict resolution of a connected UE
  • the second conflict resolution identifier is used for conflict resolution of an idle state UE or an inactive state UE or a connected state UE
  • the first indication information is used to indicate a fallback from a 2-step random access procedure to a 4-step random access
  • the second indication information is used to indicate the random backoff value when the UE retransmits the first message.
  • the network device receives the first message sent by the UE, and sends a scheduling instruction for the second message in the first window;
  • the second message includes at least one of the following: a first conflict resolution identifier, a second conflict resolution identifier, first indication information, and second indication information, wherein the first conflict resolution identifier is used for conflict resolution of a connected UE
  • the second conflict resolution identifier is used for conflict resolution of an idle state UE or an inactive state UE or a connected state UE
  • the first indication information is used to indicate a fallback from a 2-step random access procedure to a 4-step random access
  • the second indication information is used to indicate the random backoff value when the UE retransmits the first message.
  • the random access device provided in the embodiment of the present application is applied to user equipment, and the device includes:
  • a receiving unit configured to detect the scheduling instruction of the second message in the first window
  • the second message includes at least one of the following: a first conflict resolution identifier, a second conflict resolution identifier, first indication information, and second indication information, wherein the first conflict resolution identifier is used for conflict resolution of a connected UE
  • the second conflict resolution identifier is used for conflict resolution of an idle state UE or an inactive state UE or a connected state UE
  • the first indication information is used to indicate a fallback from a 2-step random access procedure to a 4-step random access
  • the second indication information is used to indicate the random backoff value when the UE retransmits the first message.
  • the random access device provided in the embodiment of the present application is applied to network equipment, and the device includes:
  • the receiving unit is configured to receive the first message sent by the UE;
  • a sending unit configured to send a scheduling instruction of the second message in the first window
  • the second message includes at least one of the following: a first conflict resolution identifier, a second conflict resolution identifier, first indication information, and second indication information, wherein the first conflict resolution identifier is used for conflict resolution of a connected UE
  • the second conflict resolution identifier is used for conflict resolution of an idle state UE or an inactive state UE or a connected state UE
  • the first indication information is used to indicate a fallback from a 2-step random access procedure to a 4-step random access
  • the second indication information is used to indicate the random backoff value when the UE retransmits the first message.
  • the user equipment provided in the embodiment of the present application includes a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the aforementioned random access method.
  • the network device provided by the embodiment of the present application includes a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the aforementioned random access method.
  • the chip provided in the embodiment of the present application is used to implement the aforementioned random access method.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes the random access method described above.
  • the computer-readable storage medium provided by the embodiment of the present application is used to store a computer program, and the computer program enables a computer to execute the random access method described above.
  • the computer program product provided by the embodiment of the present application includes computer program instructions, which cause the computer to execute the random access method described above.
  • the computer program provided in the embodiment of the present application when it runs on a computer, causes the computer to execute the above-mentioned random access method.
  • a msgB format is designed to realize the normal two-step random access process.
  • the msgB format proposed in the embodiment of this application can be implemented for the connected state. UE or idle state UE or inactive state UE conflict resolution.
  • the msgB format proposed in the embodiment of this application can instruct the UE to fall back from the 2-step random access process to the 4-step random access process.
  • the UE in any state only needs to blindly detect the physical downlink control channel (Physical Downlink Control Channel) scrambled by the random access radio network temporary identity (Random Access Radio Network Identity, RA-RNTI) in the msgB receiving window.
  • PDCCH Physical Downlink Control Channel
  • RA-RNTI Random Access Radio Network Identity
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Figure 2 is a flowchart of a four-step random access process provided by an embodiment of the present application
  • Figure 3-1 is the first structural diagram of MAC PDU provided by an embodiment of this application.
  • Figure 3-2 is a structural diagram of the E/T/R/R/BI subheader provided by an embodiment of this application;
  • Figure 3-3 is a structural diagram of the E/T/RAPID subheader provided by an embodiment of the application.
  • FIG. 4 is a structural diagram of MAC RAR provided by an embodiment of this application.
  • FIG. 4 is a schematic flowchart of a random access method provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of transmission of msgA and msgB according to an embodiment of the application
  • Figure 6-1 is a structural diagram 1 of the first MAC CE provided by an embodiment of this application.
  • Figure 6-2 is the second structural diagram of the first MAC CE provided by an embodiment of this application.
  • Figure 6-3 is a structural diagram of the second MAC CE provided by an embodiment of this application.
  • Figure 6-4 is a structural diagram 1 of the first subheader provided by an embodiment of the application.
  • Fig. 6-5 is a second structural diagram of the first subheader provided by an embodiment of the application.
  • Figure 6-6 is the third structural diagram of the first subheader provided by the embodiment of the application.
  • Fig. 6-7 is a first structural diagram of a second sub-head provided by an embodiment of this application.
  • Figure 6-8 is a second structural diagram of the second subhead provided by an embodiment of this application.
  • FIG. 6-9 is the second structural diagram of the MAC PDU provided by the embodiment of this application.
  • Figure 6-10 is a fourth structural diagram of the first subheader provided by an embodiment of this application.
  • Figure 6-11 is a structural diagram of the third MAC CE provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram 1 of the structural composition of a random access device provided by an embodiment of this application.
  • FIG. 8 is a second schematic diagram of the structural composition of a random access device provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a chip of an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a communication system provided by an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GSM Global System of Mobile Communication
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 1.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B
  • eNB evolved base station
  • CRAN Cloud Radio Access Network
  • the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches
  • the communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110.
  • the "terminal equipment” used here includes but is not limited to connection via wired lines, such as via public switched telephone networks (PSTN), digital subscriber lines (Digital Subscriber Line, DSL), digital cables, and direct cable connections ; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device that is set to receive/send communication signals; and/or Internet of Things (IoT) equipment.
  • PSTN public switched telephone networks
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL
  • a terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal” or a “mobile terminal”.
  • mobile terminals include, but are not limited to, satellites or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio phone transceivers Electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.
  • the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • NR New Radio
  • Figure 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 and a terminal device 120 with communication functions, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the application.
  • Random access is an important process for the UE to establish a wireless connection with the network side. Through random access, it can obtain uplink synchronization with the base station and apply for uplink resources.
  • the random access process is divided into a contention-based random access process and a non-competition-based random access process. Among them, the contention-based random access process includes a four-step random access process and a two-step random access process.
  • Figure 2 shows the flow chart of the four-step random access process, as shown in Figure 2, the four-step random access process The process includes the following steps:
  • Step 201 The UE sends msg1 to the base station.
  • the UE sending msg1 to the base station can be specifically implemented through the following process:
  • the UE determines the relationship between the synchronization signal block (Synchronization Signal Block, SSB) and the physical random access channel (Physical Random Access Channel, PRACH) resources (configured by higher layers);
  • SSB Synchronization Signal Block
  • PRACH Physical Random Access Channel
  • the UE receives a set of SSBs and determines its Reference Signal Received Power (RSRP) value, and selects the appropriate SSB according to the threshold;
  • RSRP Reference Signal Received Power
  • the UE determines the PRACH resource based on the selected SSB and the corresponding relationship between the SSB and the PRACH resource;
  • the UE sends the preamble on the PRACH time-frequency domain resources.
  • Step 202 The UE receives msg2 sent by the base station.
  • the UE receiving the msg2 sent by the base station can be specifically implemented through the following process:
  • the UE sends the preamble to the first Physical Downlink Control Channel (PDCCH) at the opportunity to open the RAR window (ra-Response Window) and monitor the PDCCH during the operation of the window, where PDCCH is PDCCH scrambled with RA-RNTI.
  • RA-RNTI is related to the PRACH time-frequency resource selected by the UE. The calculation of RA-RNTI is as follows:
  • RA-RNTI 1+s_id+14 ⁇ t_id+14 ⁇ 80 ⁇ f_id+14 ⁇ 80 ⁇ 8 ⁇ ul_carrier_id
  • s_id is the index of the first OFDM symbol of the PRACH resource (0 ⁇ s_id ⁇ 14);
  • t_id is the index of the first time slot of the PRACH resource in the system frame (0 ⁇ t_id ⁇ 80);
  • f_id is the index of PRACH opportunity in the frequency domain (0 ⁇ f_id ⁇ 8);
  • ul_carrier_id is an uplink (Uplink, UL) carrier used for preamble index transmission.
  • MAC PDU includes multiple MAC subPDUs (MAC subPDU), namely MAC subPDU1, MAC subPDU2, MAC subPDU3 and so on.
  • MAC subPDU1 includes Backoff Indication (BI)
  • MAC subPDU1 includes E/T/R/R/BI subheader
  • the structure of E/T/R/R/BI subheader is shown in Figure 3-2.
  • MAC subPDU2 includes Random Access preamble ID (RAPID)
  • RAPID Random Access preamble ID
  • MAC subPDU2 includes E/T/RAPID subheader
  • the structure of E/T/RAPID subheader is shown in Figure 3-3.
  • the remaining MAC subPDUs include RAPID and Random Access Response (RAR).
  • MAC subPDU3 includes E/T/RAPID subheader and MAC RAR, and the structure of E/T/RAPID subheader As shown in Figure 3-3, the structure of MAC RAR is shown in Figure 3-4.
  • the description of each information in Figure 3-2 to Figure 3-4 is as follows:
  • fallback indication information used to indicate the fallback time for retransmission of the first step message.
  • RAPID The preamble index received in the network response.
  • R stands for reserved bit area.
  • TAC Timing Advance Command, used to adjust the uplink timing.
  • Uplink Grant used to indicate resources for uplink transmission of Msg3.
  • TC-RNTI Temporary cell RNTI (Temporary C-RNTI), used for the terminal to subsequently scramble the sent Msg3 message.
  • Step 203 The UE sends msg3 to the base station.
  • msg3 is mainly used to send UE ID to the network to resolve contention conflicts. For example, if it is an initial access random process, msg3 will carry an RRC layer message, that is, CCCH SDU, which contains the UE ID and a connection establishment request (RRCSetupRequest); if it is an RRC reestablishment, it will carry a re-establishment request (RRCRestablishmentRequest). ).
  • Step 204 The UE receives msg4 sent by the base station.
  • msg4 has two functions. The first is to resolve contention conflicts; the second is to transmit RRC configuration messages to the terminal.
  • the UE receives the DCI format 1_0 of the Cell-Radio Network Temporary Identifier (C-RNTI) scrambling code and its corresponding PDSCH, the random access is complete; if the terminal receives the TC-RNTI scrambling code DCI format 1_0 and its corresponding PDSCH, and the content is successfully compared, and random access is completed.
  • C-RNTI Cell-Radio Network Temporary Identifier
  • the two-step random access process is in the process of standardization discussion and is in the research stage.
  • the two-step random access process can increase the delay and reduce the signaling overhead.
  • msgA transmits msg1 and msg3 of the four-step random access process
  • msgB transmits msg2 of the four-step random access process.
  • msg4 To receive msgB in the two-step random access process, the receiving window needs to be opened.
  • the UE detects the PDCCH scheduling msgB within the receiving window. If the UE receives the PDCCH scheduling msgB within the receiving window, the UE will check the scheduling information in the PDCCH.
  • Receive PDSCH, PDSCH contains msgB.
  • the msgB in the two-step random access process needs to include the content of msg2 and msg4, and the UE conflict resolution needs to be implemented, the following technical solutions of the embodiments of the present application are proposed.
  • FIG. 4 is a schematic flow chart of the random access method provided by an embodiment of the application.
  • the random access method of the embodiment of the application is applied to a two-step random access process. As shown in FIG. 4, the random access method includes the following steps :
  • Step 401 After the UE sends the first message, it detects the scheduling instruction of the second message in the first window; the second message includes at least one of the following: a first conflict resolution identifier, a second conflict resolution identifier, and a first indication Information and second indication information, wherein the first conflict resolution identifier is used for conflict resolution of a connected UE, and the second conflict resolution identifier is used for conflict resolution of an idle UE or an inactive UE or a connected UE, The first indication information is used to indicate the fallback from the 2-step random access process to the 4-step random access process, and the second indication information is used to indicate the random response of the UE when retransmitting the first message. Return value.
  • the two-step random access procedure includes two steps: 1) the UE sends msgA to the network device; 2) the network device sends msgB to the UE.
  • the first message is msgA
  • the second message is msgB.
  • the network equipment mentioned in the embodiments of this application includes but is not limited to LTE base station (eNB) and NR base station (gNB.)
  • the UE mentioned in the embodiments of this application may be any device capable of communicating with the network, such as a mobile phone, a notebook, a tablet computer, a vehicle-mounted terminal, and a wearable terminal.
  • the network device receives the first message sent by the UE. Then, the network device sends the scheduling instruction (such as PDCCH) of the second message (such as msgB) in the first window, and accordingly, the UE will detect the scheduling instruction of the second message in the first window.
  • the first message includes a preamble and an uplink data channel (such as PUSCH).
  • Fig. 5 taking the network device as the gNB as an example, in the two-step random access process, after the UE sends msgA, it blindly checks the scheduling command of msgB in the first window (or starts a timer, Blind inspection of msgB scheduling instructions during timer operation).
  • msgA is composed of a preamble and PUSCH, and the time when the first window starts (or the time when the timer is turned on) is after the PUSCH is sent.
  • the UE blindly detects the PDCCH in the first window (or during the running of the timer).
  • the PDCCH is scrambled by the RA-RNTI, and the calculation method of the RA-RNTI is consistent with the RA-RNTI of the RAR in the four-step random access process. It should be noted that whether the same RA-RNTI is used to blindly detect msgB is not limited in the embodiment of this application.
  • the UE If the UE successfully blindly detects the PDCCH scrambled by RA-RNTI in the first window (or during the timer operation), the UE starts to process the PDSCH scheduled by the PDCCH, which contains msgB; if the UE is in the first window (or timing During the operation of the device), if the RA-RNTI scrambled PDCCH is not blindly detected, the UE retransmits msgA.
  • the second message includes at least one of the following:
  • the first conflict resolution identifier where the first conflict resolution identifier is used for conflict resolution of the connected UE.
  • the second conflict resolution identifier which is used for conflict resolution of an idle state UE or an inactive state UE or a connected state UE.
  • Second indication information where the second indication information is used to indicate a random backoff value when the UE retransmits the first message.
  • the second message includes a MAC PDU, and the MAC PDU Include at least one of the following:
  • a first MAC CE the first MAC CE carries the first conflict resolution identifier, and the first conflict resolution identifier is a cell radio network temporary identifier (Cell-RNTI, C-RNTI).
  • the first MAC CE may also be referred to as C-RNTI MAC CE.
  • the second MAC CE the second MAC CE carries the second conflict resolution identifier (that is, the Contention resolution ID).
  • the second MAC CE may also be called Contention resolution MAC CE.
  • the third MAC CE, the third MAC CE carries RAR, and the RAR is used to indicate a fallback from a 2-step random access process to a 4-step random access process.
  • the content of the RAR may be the content of msg2 in the four-step random access process, and further, a RAPID may be added to the RAR.
  • the first MAC CE also carries uplink timing advance information.
  • the first MAC CE includes: C-RNTI and TAC.
  • TAC is used by the UE to adjust the uplink TA for subsequent uplink transmission
  • C-RNTI is used to resolve contention conflicts, that is, if the C-RNTI in msgB received by the UE is consistent with the C-RNTI carried in msgA, the conflict is considered to be resolved.
  • the first MAC CE also carries uplink timing advance information and uplink scheduling information.
  • the contents of the first MAC CE include: C-RNTI, TAC, UL grant. It should be noted that the position of these contents in the first MAC CE can be changed. This implementation The example is just an example.
  • the first MAC CE of this format triggers the random access process for the following situations:
  • the second MAC CE also carries uplink timing advance information and C-RNTI.
  • the content contained in the second MAC CE includes: Contention Resolution ID, TAC, and C-RNTI.
  • TAC uses the UE to adjust the uplink TA for subsequent uplink transmission
  • C-RNTI is used for PDCCH scrambling for subsequent data scheduling
  • Contention Resolution ID is used for conflict resolution, that is, if the UE receives the contention resolution ID in msgB and the one carried in msgA If the CCCH SDU matches, it is considered that the conflict is resolved.
  • the UE initiates an RRC reestablishment (RRC reestablishment) to trigger random access.
  • RRC reestablishment RRC reestablishment
  • the conflict resolution is also implemented through the second conflict resolution identifier, but in this scenario, the UE is in the connected state.
  • the RAR in the third MAC CE includes uplink timing advance information (such as TAC), uplink scheduling information (such as UL grant), and temporary cell radio network temporary identification (TC- RNTI).
  • uplink timing advance information such as TAC
  • uplink scheduling information such as UL grant
  • TC- RNTI temporary cell radio network temporary identification
  • the third MAC CE it is the same as the MAC RAR format in msg2 in the four-step random access process. Refer to Figure 3-4 for the specific format.
  • the content includes: TAC, UL Grant, and TC-RNTI.
  • the RAR in the third MAC CE includes uplink timing advance information (such as TAC), uplink scheduling information (such as UL grant), TC-RNTI, and RAPID.
  • uplink timing advance information such as TAC
  • uplink scheduling information such as UL grant
  • TC-RNTI such as TC-RNTI
  • RAPID the specific format is shown in Figure 6-11, and the content included: TAC, UL Grant, TC-RNTI, and RAPID.
  • the main purpose of carrying RAPID in the third MAC CE is to make the corresponding first sub-header only contain 1 byte, which is consistent with the size of other sub-headers. Refer to the description in the second extended solution below.
  • the second indication information is BI information, which is used to indicate the random backoff value of the UE when retransmitting the first message. That is, for those UEs whose network equipment does not detect msgA, they need to backoff according to BI to reduce conflicts.
  • the above 1), 2), 3), and 4) can be carried in the second message in any combination.
  • msgB can contain 3) and 4). This situation corresponds to the fact that the network device did not detect any corresponding PUSCH (ie payload) on a certain random access opportunity (RO), but only detected one Or some preambles. At this time, the network equipment can fall back to the four-step random access process for these UEs in a four-step random access process.
  • RO random access opportunity
  • msgB can contain 1), 3) and 4).
  • msgB can contain 2), 3) and 4).
  • msgB can contain 1), 2), 3) and 4).
  • BI information may or may not be included in msgB.
  • the content included in the MAC PDU will be described in detail below in conjunction with the specific implementation form of the MAC PDU of the second message.
  • the MAC PDU includes multiple first MAC subPDUs, the first MAC subPDU includes a first subheader and a target MAC CE, and the first subheader carries third indication information, and the third indication information It is used to indicate the type of the target MAC CE, and the type of the target MAC CE refers to the first MAC CE, or the second MAC CE, or the third MAC CE.
  • the first subheader carries RAPID.
  • msgB can be detected by multiple UEs using the same RO, so RAPID is still required to instruct UEs with different preambles, that is, when the UE detects the msgB, it will find the first one according to the preamble index used in msgA The RAPID in the subheader, to see if it matches the preamble index in msgA.
  • the first subheader carries third indication information
  • the third indication information is used to indicate the type of the target MAC CE.
  • the third indication information can be implemented in the following manner:
  • the third indication information is an LCID, and the LCID is used to indicate the type of the target MAC CE.
  • the content contained in the first subheader includes RAPID and LCID, where LCID is used to indicate different MAC CE types.
  • the third indication information is the first type information, and the first type information is used to indicate the type of the target MAC CE and/or the type of the subheader.
  • the first sub-header type refers to the BI sub-header, and the content contained in the BI sub-header includes the first type of information and BI. Information;
  • the second sub-header type refers to a sub-header that only contains the first type of information. Further, the second sub-header may or may not contain RAPID.
  • the first type information carried in the first subheader is used to indicate the type of the target MAC CE corresponding to the first subheader and/or the type of the first subheader.
  • the first type of information uses 3 bits to indicate four different types. Of course, how many bits are used depends on how many different types of MAC CE need to be indicated. Taking the first type of information including 3bit as an example, the type indicated is shown in Table 1 below:
  • the third MAC CE (see Figure 3-4) 001 The first MAC CE (format one, see Figure 6-1) 010 The first MAC CE (format two, see Figure 6-2) 011 Second MAC CE (see Figure 6-3) 100 Padding 101 BI subhead
  • the first sub-header contains RAPID and first type information (T1), where T1 is used to indicate different MAC CE types, and T1 in Figure 6-5 contains 3 bits.
  • the first subheader in order to be compatible with the four-step random access process, contains RAPID, second type information (T), and first type information (T1), where T is used for Indicate whether the first subheader contains RAPID or BI information, and T1 is used to indicate different MAC CE types.
  • T1 in Figure 6-6 contains 2 bits and can only indicate at most four different MAC CE types.
  • the MAC PDU also includes a second MAC sub-PDU, the second MAC sub-PDU includes only a second sub-header, the second sub-header carries the second indication information, and the second indication information is BI information.
  • the second subheader also carries first type information, where the first type information is used to indicate the type of the target MAC CE and/or the type of the subheader.
  • the first type information carried in the second subheader is used to indicate the type of the second subheader (that is, the BI subheader).
  • the second subheader also carries second type information, and the second type information is used to indicate whether the second subheader contains RAPID or BI information.
  • the second sub-header contains BI and the first type of information (T1).
  • T1 is used to indicate that the second sub-header contains BI information.
  • T1 in Figure 6-7 contains 3 bits.
  • the second subheader in order to be compatible with the four-step random access process, contains BI and second type information (T).
  • T is used to indicate that the second subheader contains BI information .
  • T in Figure 6-8 contains 1 bit.
  • the MAC PDU includes multiple MAC subPDUs (MAC subPDU), namely MAC subPDU1, MAC subPDU2, MAC subPDU3, and so on.
  • MAC subPDU1 includes a second subheader
  • the format of the second subheader is shown in Figure 6-7 or Figure 6-8.
  • Other MAC subPDUs other than MAC subPDU1 for example, MAC subPDU2 includes a first subheader and a target MAC CE.
  • the target MAC CE may be the aforementioned first MAC CE, or second MAC CE, or third MAC CE.
  • the format parameters of the first subheader are shown in Figure 6-4 or Figure 6-5 or Figure 6-6.
  • the following extended solution may also be adopted.
  • the second subheader (that is, the subheader carrying BI) contains 1 byte (see Figure 6-7), and the first subheader of the first MAC CE and the second MAC CE contains 1 byte (see Figure 6-10),
  • the first subheader of the third MAC CE contains 2 bytes (refer to Figure 6-5).
  • the first subheader of the first MAC CE and the second MAC CE only contains the first type of information (T1).
  • T1 is shown in Table 2 below:
  • the advantage of scheme one is that it can save 1 byte of overhead for subheader; if there are more first MAC CE or second MAC CE responding to different UEs, the UE needs to try many MAC subPDUs to find its own MAC subPDU.
  • a subheader can be designed so that the subheader is 1 byte.
  • the RAPID in the first subheader can be moved to the third MAC CE.
  • the second subheader that is, the subheader carrying BI
  • the first subheader of the first MAC CE, the second MAC CE, and the third MAC CE contains 1 byte (refer to As shown in Figure 6-10).
  • the format of the third MAC CE needs to be modified as shown in Figure 6-11, and the content included: TAC, UL Grant, TC-RNTI, and RAPID.
  • Table 3 The value of T1 in Figure 6-10 is shown in Table 3 below:
  • a subheader can be designed so that the subheader is 1 byte.
  • the third MAC CE in msgB is sent in another PDSCH.
  • the second subheader that is, the subheader carrying BI
  • the first subheader of the first MAC CE and the second MAC CE contains 1 byte (see Figure 6-10). Show).
  • the value of T1 in Figure 6-10 is shown in Table 4 below:
  • the embodiment of this application also specifies the behavior of two types of UE upon receiving the MAC PDU, which can be divided into:
  • the first type of UE a connected UE.
  • the UE transmits at least a fourth MAC CE in the uplink data channel of the first message, and the fourth MAC CE carries a C-RNTI. That is: the connected UE will transmit C-RNTI MAC CE in the PUSCH of msgA.
  • the UE of the first type After transmitting the first message, the UE of the first type receives the scheduling instruction of the second message in the first window/timer. If the UE receives the scheduling instruction of the second message in the first window, then The UE determines whether the MAC PDU includes the first MAC CE and/or the third MAC CE through the third indication information carried in the MAC PDU of the second message, where:
  • the conflict is resolved.
  • the first MAC CE may not be included in the MAC PDU.
  • the UE conflict resolution is implemented by receiving the PDCCH scrambled by the C-RNTI. Specifically, if there is no third MAC CE in the second message received by the UE, the UE continues to blindly check whether there is a PDCCH scrambled by the C-RNTI. That is to say, the first type of UE needs to blindly detect the PDCCH scrambled by RA-RNTI and the PDCCH scrambled by C-RNTI. Among them, the PDCCH scrambled by C-RNTI is used for conflict resolution.
  • the UE falls back from the 2-step random access process to the 4-step random access process.
  • the UE retransmits the first message after the first window ends, wherein the retransmission of the first message is The BI value in the second message is rolled back.
  • the second type of UE idle state UE or inactive state UE or connected state UE
  • the UE transmits the CCCH SDU in the uplink data channel of the first message. That is, the idle state UE or the inactive state UE or the connected state UE will transmit CCCH SDU in the new PUSCH of msgA.
  • the second type of UE After the second type of UE transmits the first message, it receives the scheduling instruction of the second message in the first window/timer. If the UE receives the scheduling instruction of the second message in the first window, then The UE determines whether the MAC PDU includes a second MAC CE and/or a third MAC CE through the third indication information carried in the MAC PDU of the second message, where:
  • the conflict is resolved.
  • the UE falls back from the 2-step random access process to the 4-step random access process.
  • the UE retransmits the first message after the first window ends, wherein the retransmission of the first message is The BI value in the second message is rolled back.
  • FIG. 7 is a schematic diagram 1 of the structural composition of a random access device provided by an embodiment of the application.
  • the random access device is applied to user equipment, and the device includes:
  • the sending unit 701 is configured to send the first message
  • the receiving unit 702 is configured to detect the scheduling instruction of the second message in the first window
  • the second message includes at least one of the following: a first conflict resolution identifier, a second conflict resolution identifier, first indication information, and second indication information, wherein the first conflict resolution identifier is used for conflict resolution of a connected UE
  • the second conflict resolution identifier is used for conflict resolution of an idle state UE or an inactive state UE or a connected state UE
  • the first indication information is used to indicate a fallback from a 2-step random access procedure to a 4-step random access
  • the second indication information is used to indicate the random backoff value when the UE retransmits the first message.
  • the first message includes a preamble and an uplink data channel.
  • the second message includes a MAC PDU
  • the MAC PDU includes at least one of the following:
  • a first MAC CE where the first MAC CE carries the first conflict resolution identifier, and the first conflict resolution identifier is C-RNTI;
  • a second MAC CE where the second MAC CE carries the second conflict resolution identifier
  • the third MAC CE, the third MAC CE carries RAR, and the RAR is used to indicate a fallback from a 2-step random access process to a 4-step random access process.
  • the first MAC CE also carries uplink timing advance information.
  • the first MAC CE also carries uplink timing advance information and uplink scheduling information.
  • the second MAC CE also carries uplink timing advance information and C-RNTI.
  • the RAR includes uplink timing advance information, uplink scheduling information, and TC-RNTI.
  • the RAR includes uplink timing advance information, uplink scheduling information, TC-RNTI, and RAPID.
  • the MAC PDU includes a plurality of first MAC sub-PDUs, the first MAC sub-PDU includes a first sub-header and a target MAC CE, and the first sub-header carries third indication information.
  • the third indication information is used to indicate the type of the target MAC CE, and the type of the target MAC CE refers to the first MAC CE, or the second MAC CE, or the third MAC CE.
  • the third indication information is an LCID, and the LCID is used to indicate the type of the target MAC CE.
  • the third indication information is first type information, and the first type information is used to indicate the type of the target MAC CE and/or the type of the first subheader.
  • the first subheader also carries RAPID.
  • the first subheader further carries second type information, and the second type information is used to indicate whether the first subheader contains RAPID or BI information.
  • the MAC PDU further includes a second MAC subPDU, the second MAC subPDU includes only a second subheader, the second subheader carries the second indication information, and the first The second indication information is BI information.
  • the second subheader further carries first type information, and the first type information is used to indicate the type of the second subheader.
  • the second subheader further carries second type information, and the second type information is used to indicate whether the second subheader contains RAPID or BI information.
  • the user equipment when the user equipment is a connected UE,
  • the sending unit 701 transmits at least a fourth MAC CE in the uplink data channel of the first message, and the fourth MAC CE carries a C-RNTI.
  • the device further includes:
  • the determining unit 703 is configured to, if the receiving unit receives the scheduling instruction of the second message within the first window, determine through the third indication information carried in the MAC PDU of the second message Whether the MAC PDU includes the first MAC CE and/or the third MAC CE.
  • the device further includes a processing unit 704, configured to:
  • the conflict is resolved;
  • the 2-step random access process will fall back to the 4-step random access process;
  • the first message is retransmitted after the first window ends, and the second message is used for retransmission of the first message.
  • the BI value in the message is rolled back.
  • the user equipment when the user equipment is an idle state UE, an inactive state UE, or a connected state UE,
  • the sending unit 701 transmits the CCCH SDU in the uplink data channel of the first message.
  • the device further includes:
  • the determining unit 703 is configured to, if the receiving unit receives the scheduling instruction of the second message in the first window, determine through the third indication information carried in the MAC PDU of the second message Whether the MAC PDU includes a second MAC CE and/or a third MAC CE.
  • the device further includes a processing unit 704, configured to:
  • the conflict is resolved
  • the 2-step random access process will fall back to the 4-step random access process;
  • the first message is retransmitted after the first window ends, and the second message is used for retransmission of the first message.
  • the BI value in the message is rolled back.
  • FIG. 8 is a schematic diagram 2 of the structural composition of a random access device provided by an embodiment of the application.
  • the random access device is applied to network equipment, and the device includes:
  • the receiving unit 801 is configured to receive the first message sent by the UE;
  • the sending unit 802 is configured to send a scheduling instruction of the second message in the first window
  • the second message includes at least one of the following: a first conflict resolution identifier, a second conflict resolution identifier, first indication information, and second indication information, wherein the first conflict resolution identifier is used for conflict resolution of a connected UE
  • the second conflict resolution identifier is used for conflict resolution of an idle state UE or an inactive state UE or a connected state UE
  • the first indication information is used to indicate a fallback from a 2-step random access procedure to a 4-step random access
  • the second indication information is used to indicate the random backoff value when the UE retransmits the first message.
  • the first message includes a preamble and an uplink data channel.
  • the second message includes a MAC PDU
  • the MAC PDU includes at least one of the following:
  • a first MAC CE where the first MAC CE carries the first conflict resolution identifier, and the first conflict resolution identifier is C-RNTI;
  • a second MAC CE where the second MAC CE carries the second conflict resolution identifier
  • the third MAC CE, the third MAC CE carries a random access response RAR, and the RAR is used to indicate a fallback from a 2-step random access process to a 4-step random access process.
  • the first MAC CE also carries uplink timing advance information.
  • the first MAC CE also carries uplink timing advance information and uplink scheduling information.
  • the second MAC CE also carries uplink timing advance information and C-RNTI.
  • the RAR includes uplink timing advance information, uplink scheduling information, and TC-RNTI.
  • the RAR includes uplink timing advance information, uplink scheduling information, TC-RNTI, and RAPID.
  • the MAC PDU includes a plurality of first MAC sub-PDUs, the first MAC sub-PDU includes a first sub-header and a target MAC CE, and the first sub-header carries third indication information.
  • the third indication information is used to indicate the type of the target MAC CE, and the type of the target MAC CE refers to the first MAC CE, or the second MAC CE, or the third MAC CE.
  • the third indication information is LCID, and the LCID is used to indicate the type of the target MAC CE and/or the type of the first subheader.
  • the third indication information is first type information, and the first type information is used to indicate the type of the target MAC CE.
  • the first subheader also carries RAPID.
  • the first subheader further carries second type information, and the second type information is used to indicate whether the first subheader contains RAPID or BI information.
  • the MAC PDU further includes a second MAC subPDU, the second MAC subPDU includes only a second subheader, the second subheader carries the second indication information, and the first The second indication information is BI information.
  • the second subheader further carries first type information, and the first type information is used to indicate the type of the second subheader.
  • the second subheader further carries second type information, and the second type information is used to indicate whether the second subheader contains RAPID or BI information.
  • FIG. 9 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • the communication device may be a user equipment or a network device.
  • the communication device 600 shown in FIG. 9 includes a processor 610.
  • the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620.
  • the processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.
  • the memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 600 may specifically be a network device in an embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not repeated here. .
  • the communication device 600 may specifically be a mobile terminal/terminal device of an embodiment of the application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the application.
  • I won’t repeat it here.
  • FIG. 10 is a schematic structural diagram of a chip of an embodiment of the present application.
  • the chip 700 shown in FIG. 10 includes a processor 710, and the processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720.
  • the processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.
  • the memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
  • the chip 700 may further include an input interface 730.
  • the processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.
  • the chip 700 may further include an output interface 740.
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in the various methods of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the network device in the various methods of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.
  • FIG. 11 is a schematic block diagram of a communication system 1100 according to an embodiment of the present application. As shown in FIG. 11, the communication system 1100 includes a user equipment 1110 and a network device 1120.
  • the user equipment 1110 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network equipment 1120 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, it will not be repeated here. .
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • Synchlink DRAM SLDRAM
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application ,
  • the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application ,
  • I will not repeat it here.
  • the embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For brevity, I won't repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • I won’t repeat it here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

本申请实施例提供一种随机接入方法及装置、用户设备、网络设备,该方法包括:UE发送完第一消息后,在第一窗口内检测第二消息的调度指令;所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。

Description

一种随机接入方法及装置、用户设备、网络设备 技术领域
本申请实施例涉及移动通信技术领域,具体涉及一种随机接入方法及装置、用户设备、网络设备。
背景技术
在长期演进(Long Term Evolution,LTE)***中,随机接入过程采用的是四步随机接入过程。在新无线(New Radio,NR)***中仍然沿用LTE***中的四步随机接入过程。随着标准化的讨论,认为四步随机接入过程较为繁琐,会给终端的接入带来较大的时延,因此提出了两步随机接入过程。通过两步随机接入过程中的msgA传输四步随机接入过程中的msg1和msg3,通过两步随机接入过程中的msgB传输四步随机接入过程中的msg2和msg4。如何设计两步随机接入过程中的msgB以实现正常的随机接入流程是需要解决的问题。
发明内容
本申请实施例提供一种随机接入方法及装置、用户设备、网络设备。
本申请实施例提供的随机接入方法,包括:
用户设备(User Equipment,UE)发送完第一消息后,在第一窗口内检测第二消息的调度指令;
所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。
本申请实施例提供的随机接入方法,包括:
网络设备接收UE发送的第一消息,在第一窗口内发送第二消息的调度指令;
所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。
本申请实施例提供的随机接入装置,应用于用户设备,所述装置包括:
发送单元,用于发送第一消息;
接收单元,用于在第一窗口内检测第二消息的调度指令;
所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指 示信息用于指示所述UE在重传所述第一消息时的随机回退值。
本申请实施例提供的随机接入装置,应用于网络设备,所述装置包括:
接收单元,用于接收UE发送的第一消息;
发送单元,用于在第一窗口内发送第二消息的调度指令;
所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。
本申请实施例提供的用户设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述的随机接入方法。
本申请实施例提供的网络设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述的随机接入方法。
本申请实施例提供的芯片,用于实现上述的随机接入方法。
具体地,该芯片包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该芯片的设备执行上述的随机接入方法。
本申请实施例提供的计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述的随机接入方法。
本申请实施例提供的计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行上述的随机接入方法。
本申请实施例提供的计算机程序,当其在计算机上运行时,使得计算机执行上述的随机接入方法。
通过上述技术方案,明确了两步随机接入过程中第二消息的内容,即设计一种msgB格式以实现正常的两步随机接入过程,本申请实施例提出的msgB格式可以实现针对连接态UE或空闲态UE或非激活态UE的冲突解决。另一方面,本申请实施例提出的msgB格式可以指示UE从2步随机接入过程回退到4步随机接入过程。如此,任何状态下的UE都只需要在msgB的接收窗口中盲检随机接入无线网络临时标识(Random Access Radio Network Tempory Identity,RA-RNTI)加扰的物理下行控制信道(Physical Downlink Control Channel,PDCCH),节省了UE盲检PDCCH的开销。
附图说明
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1是本申请实施例提供的一种通信***架构的示意性图;
图2是本申请实施例提供的四步随机接入过程的流程图;
图3-1为本申请实施例提供的MAC PDU的结构图一;
图3-2为本申请实施例提供的E/T/R/R/BI subheader的结构图;
图3-3为本申请实施例提供的E/T/RAPID subheader的结构图;
图3-4为本申请实施例提供的MAC RAR的结构图;
图4为本申请实施例提供的随机接入方法的流程示意图;
图5为本申请实施例提供的msgA和msgB的传输示意图;
图6-1为本申请实施例提供的第一MAC CE的结构图一;
图6-2为本申请实施例提供的第一MAC CE的结构图二;
图6-3为本申请实施例提供的第二MAC CE的结构图;
图6-4为本申请实施例提供的第一子头的结构图一;
图6-5为本申请实施例提供的第一子头的结构图二;
图6-6为本申请实施例提供的第一子头的结构图三;
图6-7为本申请实施例提供的第二子头的结构图一;
图6-8为本申请实施例提供的第二子头的结构图二;
图6-9为本申请实施例提供的MAC PDU的结构图二;
图6-10为本申请实施例提供的第一子头的结构图四;
图6-11为本申请实施例提供的第三MAC CE的结构图;
图7为本申请实施例提供的随机接入装置的结构组成示意图一;
图8为本申请实施例提供的随机接入装置的结构组成示意图二;
图9是本申请实施例提供的一种通信设备示意性结构图;
图10是本申请实施例的芯片的示意性结构图;
图11是本申请实施例提供的一种通信***的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信***,例如:全球移动通讯(Global System of Mobile communication,GSM)***、码分多址(Code Division Multiple Access,CDMA)***、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)***、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)***、LTE频分双工(Frequency Division Duplex,FDD)***、LTE时分双工(Time Division Duplex,TDD)、通用移动通信***(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信***或5G***等。
示例性的,本申请实施例应用的通信***100如图1所示。该通信***100可以包括网络设备110,网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备进行通信。可选地,该网络设备110可以是GSM***或CDMA***中的基站(Base Transceiver Station,BTS),也可以是WCDMA***中的基站(NodeB,NB),还可以是LTE***中的演进型基站(Evolutional Node B,eNB或eNodeB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器,或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。
该通信***100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”包括但不限于经由有线线路连接,如经由公共交换电话网络(Public Switched Telephone Networks,PSTN)、数字用户线路(Digital Subscriber Line,DSL)、数字电缆、直接电缆连接;和/或另一数据连接/网络;和/或经由无线接口,如,针对蜂窝网络、无线局域网(Wireless Local Area Network,WLAN)、诸如DVB-H网络 的数字电视网络、卫星网络、AM-FM广播发送器;和/或另一终端设备的被设置成接收/发送通信信号的装置;和/或物联网(Internet of Things,IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话;可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信***(Personal Communications System,PCS)终端;可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位***(Global Positioning System,GPS)接收器的PDA;以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment,UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地,终端设备120之间可以进行终端直连(Device to Device,D2D)通信。
可选地,5G***或5G网络还可以称为新无线(New Radio,NR)***或NR网络。
图1示例性地示出了一个网络设备和两个终端设备,可选地,该通信***100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
可选地,该通信***100还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例对此不作限定。
应理解,本申请实施例中网络/***中具有通信功能的设备可称为通信设备。以图1示出的通信***100为例,通信设备可包括具有通信功能的网络设备110和终端设备120,网络设备110和终端设备120可以为上文所述的具体设备,此处不再赘述;通信设备还可包括通信***100中的其他设备,例如网络控制器、移动管理实体等其他网络实体,本申请实施例中对此不做限定。
应理解,本文中术语“***”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种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。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
为便于理解本申请实施例的技术方案,以下对本申请实施例相关的技术概念进行说明。
随机接入是UE与网络侧建立无线连接的重要过程,通过随机接入可以与基站之间取得上行同步,申请上行资源。随机接入过程分为基于竞争的随机接入过程和基于非竞争的随机接入过程。其中,基于竞争的随机接入过程包括四步随机接入过程和两步随机接入过程,图2给出了四步随机接入过程的流程图,如图2所示,四步随机接入过程包括以下步骤:
步骤201:UE向基站发送msg1。
这里,UE向基站发送msg1具体可以通过以下过程来实现:
–UE确定同步信号块(Synchronization Signal Block,SSB)与物理随机接入信道(Physical Random Access Channel,PRACH)资源的关系(由高层配置);
–UE接收一组SSB并确定其参考信号接收功率(Reference Signal Received Power,RSRP)值,根据门限选择合适的SSB;
–UE基于选择的SSB和SSB与PRACH资源的对应关系确定PRACH资源;
–UE在PRACH时频域资源上发送前导码。
步骤202:UE接收基站发送的msg2。
这里,UE接收基站发送的msg2具体可以通过以下过程来实现:
–UE在发送了前导码之后的第一个物理下行控制信道(Physical Downlink Control Channel,PDCCH)时机(occasion)开启RAR窗口(ra-Response Window)并在该窗口运行期间监听PDCCH,其中,PDCCH是用RA-RNTI加扰的PDCCH。RA-RNTI跟UE所选PRACH时频资源有关,RA-RNTI的计算如下:
RA-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id
其中,s_id为PRACH资源的第一个OFDM符号的索引(0≤s_id<14);
t_id为***帧中PRACH资源的第一个时隙的索引(0≤t_id<80);
f_id是频域中的PRACH时机的索引(0≤f_id<8);
ul_carrier_id是用于preamble index传输的上行(Uplink,UL)载波。
UE成功监测到RA-RNTI加扰的PDCCH之后,能够获得该PDCCH调度的物理下行共享信道(Physical Downlink Shared Channel,PDSCH),其中包含了msg2,msg2的媒体接入控制协议数据单元(Media Access Control Protocol Data Unit,MAC PDU)的数据格式如图3-1所示,MAC PDU包括多个MAC子PDU(MAC subPDU),分别为MAC subPDU1、MAC subPDU2、MAC subPDU3等等。其中,MAC subPDU1包含回退指示(Backoff Indication,BI),MAC subPDU1包括E/T/R/R/BI subheader,E/T/R/R/BI subheader的结构如图3-2所示。MAC subPDU2包含随机接入前导码标识(Random Access preamble ID,RAPID),MAC subPDU2包括E/T/RAPID subheader,E/T/RAPID subheader的结构如图3-3所示。其余MAC subPDU(如MAC subPDU3)包含RAPID和随机接入响应(Random Access Response,RAR),以MAC subPDU3为例,MAC subPDU3包括E/T/RAPID subheader和MAC RAR,E/T/RAPID subheader的结构如图3-3所示,MAC RAR的结构如图3-4所示。图3-2至图3-4中各个信息的介绍如下:
BI:回退指示信息,用于指示重传第一步消息的回退时间。
RAPID:网络响应收到的preamble index。
R:代表保留比特区域。
TAC:时间提前命令(Timing Advance Command),用于调整上行时序。
UL Grant:上行授权(Uplink Grant),用于指示上行传输Msg3的资源。
TC-RNTI:临时小区RNTI(Temporary C-RNTI),用于终端后续对发送的Msg3消息进行加扰。
步骤203:UE向基站发送msg3。
msg3主要用于向网络发送UE ID来解决竞争冲突。比如,如果是初始接入随机过程,则在msg3中会携带RRC层消息,也就是CCCH SDU,其中包含UE ID和连接建立请求(RRCSetupRequest);如果是RRC重建,则会携带重建立请求(RRCRestablishmentRequest)。
步骤204:UE接收基站发送的msg4。
msg4有两个作用,第一是用于竞争冲突解决;第二是向终端传输RRC配置消息。这里,如果UE收到小区无线网络临时标识(Cell-Radio Network Temporary Identifier,C-RNTI)扰码的DCI format 1_0及其对应的PDSCH,随机接入完成;如果终端收到TC-RNTI扰码的DCI format 1_0及其对应的PDSCH,并比对内容成功,随机接入完成。
两步随机接入过程正在标准化讨论过程,处于研究阶段。两步随机接入过程可以提高时延,同时也能降低信令开销,目前有个基本的方式是,msgA传输四步随机接入过 程的msg1和msg3,msgB传输四步随机接入过程的msg2和msg4。两步随机接入过程中的msgB的接收需要开启接收窗口,UE在该接收窗口内检测调度msgB的PDCCH,如果UE在接收窗口内收到调度msgB的PDCCH,则UE根据PDCCH中的调度信息去接收PDSCH,PDSCH中包含了msgB。考虑到两步随机接入过程中的msgB需要包含msg2和msg4的内容,且需要实现UE的冲突解决,为此,提出了本申请实施例的以下技术方案。
图4为本申请实施例提供的随机接入方法的流程示意图,本申请实施例的随机接入方法应用于两步随机接入过程,如图4所示,所述随机接入方法包括以下步骤:
步骤401:UE发送完第一消息后,在第一窗口内检测第二消息的调度指令;所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。
两步随机接入过程包括两个步骤:1)UE向网络设备发送msgA;2)网络设备向UE发送msgB。本申请的一种实施方式中,第一消息为msgA,第二消息为msgB。
本申请实施例中提到的网络设备包括但不限于是LTE基站(eNB),NR基站(gNB。)
本申请实施例中提到的UE可以是手机、笔记本、平板电脑、车载终端、可穿戴式终端等任意能够与网络进行通信的设备。
本申请实施例中,UE发送第一消息(如msgA)后,网络设备接收UE发送的第一消息。而后,网络设备在第一窗口内发送第二消息(如msgB)的调度指令(如PDCCH),相应地,UE会在第一窗口内检测第二消息的调度指令。这里,所述第一消息包括前导码和上行数据信道(如PUSCH)。
具体地,参照图5,图5中以网络设备为gNB为例,在两步随机接入过程中,UE发送msgA之后,在第一窗口内盲检msgB的调度指令(或者开启一个定时器,在定时器运行期间盲检msgB的调度指令)。
其中,msgA由前导码和PUSCH组成,第一窗口开始的时间(或者定时器开启的时间)在PUSCH发送之后。UE在第一窗口内(或者定时器运行期间)盲检PDCCH,该PDCCH由RA-RNTI加扰,该RA-RNTI的计算方式与四步随机接入过程中的RAR的RA-RNTI一致。需要说明的是,是否采用同一个RA-RNTI来盲检msgB本申请实施例不做限定。
如果UE在第一窗口内(或者定时器运行期间)成功盲检到RA-RNTI加扰的PDCCH,则UE开始处理该PDCCH调度的PDSCH,其中包含msgB;如果UE在第一窗口内(或者定时器运行期间)没有盲检到RA-RNTI加扰的PDCCH,则UE重传msgA。
本申请实施例中,第二消息包括以下至少之一:
1)第一冲突解决标识,所述第一冲突解决标识用于连接态UE的冲突解决。
2)第二冲突解决标识,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决。
3)第一指示信息,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程。
4)第二指示信息,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。
对于上述1)、2)、3)而言,可以通过媒体接入控制控制单元(Media Access Control Control Element,MAC CE)来实现,具体地,所述第二消息包括MAC PDU,所述MAC  PDU包括以下至少之一:
第一MAC CE,所述第一MAC CE携带所述第一冲突解决标识,所述第一冲突解决标识为小区无线网络临时标识(Cell-RNTI,C-RNTI)。这里,所述第一MAC CE也可以称作C-RNTI MAC CE。
第二MAC CE,所述第二MAC CE携带所述第二冲突解决标识(即Contention resolution ID)。这里,所述第二MAC CE也可以称作Contention resolution MAC CE。
第三MAC CE,所述第三MAC CE携带RAR,所述RAR用于指示从2步随机接入过程回退到4步随机接入过程。这里,所述RAR的内容可以是四步随机接入过程中的msg2的内容,进一步,也可以在RAR中增加一个RAPID。
进一步,对于所述第一MAC CE而言:
a)在本申请的一种实施方式中,所述第一MAC CE还携带上行定时提前量信息。举个例子:参照图6-1,所述第一MAC CE包含的内容有:C-RNTI、TAC。其中,TAC用于UE调整后续上行传输的上行TA,C-RNTI用于解决竞争冲突,即如果UE接收到的msgB中的C-RNTI与msgA中携带的C-RNTI一致,则认为冲突解决。
b)在本申请的另一种实施方式中,所述第一MAC CE还携带上行定时提前量信息和上行调度信息。举个例子:参照图6-2,所述第一MAC CE包含的内容有:C-RNTI、TAC、UL grant,需要说明的是,这些内容在第一MAC CE中的位置可以变化,本实施例只是一个示例。这种格式的第一MAC CE针对如下几种情况触发的随机接入过程:
●上行同步状态是“非同步(non-synchronised)”时,在RRC连接态期间有上行数据达到;
●没有传输调度请求(SR)的PUCCH资源时,在RRC连接态期间有上行数据达到;
●SR失败。
进一步,对于所述第二MAC CE而言:所述第二MAC CE还携带上行定时提前量信息和C-RNTI。举个例子:参照图6-3,所述第二MAC CE包含的内容有:冲突解决标识(Contention Resolution ID)、TAC、C-RNTI。其中,TAC用UE调整后续上行传输的上行TA;C-RNTI用于后续数据调度的PDCCH加扰;Contention Resolution ID用于冲突解决,即如果UE接收到msgB中的contention resolution ID与msgA中携带的CCCH SDU匹配,则认为冲突解决。
需要说明的是,在连接态下,UE发起RRC重建立(RRC reestablishment)触发了随机接入,这个时候,也是通过第二冲突解决标识来实现冲突解决,但是这种场景UE处于连接态。
进一步,对于所述第三MAC CE而言:
a)在本申请的一种实施方式中,所述第三MAC CE中的RAR包括上行定时提前量信息(如TAC)、上行调度信息(如UL grant)以及临时小区无线网络临时标识(TC-RNTI)。对于第三MAC CE而言,其和四步随机接入过程中msg2中的MAC RAR格式一样,具体格式参照图3-4所示,包含的内容有:TAC、UL Grant、TC-RNTI。
b)在本申请的另一种实施方式中,所述第三MAC CE中的RAR包括上行定时提前量信息(如TAC)、上行调度信息(如UL grant)、TC-RNTI以及RAPID。对于第三MAC CE而言,具体格式参照图6-11所示,包含的内容有:TAC、UL Grant、TC-RNTI、RAPID。将RAPID携带在第三MAC CE中的主要目的是使得其对应的第一子头可以只含有1byte,与其他子头的尺寸(size)一致,参照如下扩展的方案二中的描述。
对于上述4)而言,所述第二指示信息为BI信息,用于指示所述UE在重传所述第一消息时的随机回退值。即对于那些网络设备没有检测出msgA的UE,需要按照BI进 行回退(backoff),以减少冲突。
本申请实施例中,上述1)、2)、3)、4)可以按照任意组合方式携带在第二消息中。
●举个例子:msgB可以包含3)和4),这种情况对应的是网络设备没有在某个随机接入时机(RO)上检测出任何对应的PUSCH(即payload),只是检测出了一个或一些前导码,这个时候网络设备可以采用回退到四步随机接入过程的方式将这些UE回退到四步随机接入过程。
●举个例子:msgB可以包含1),3)以及4)。
●举个例子:msgB可以包含2),3)以及4)。
●举个例子:msgB可以包含1),2),3)以及4)。
需要说明的是,msgB中可以包含BI信息也可以不包含BI信息。
以下结合第二消息的MAC PDU的具体实现形式对所述MAC PDU包含的内容进行详细说明。
I)所述MAC PDU包括多个第一MAC子PDU,所述第一MAC子PDU包括第一子头和目标MAC CE,所述第一子头携带第三指示信息,所述第三指示信息用于指示所述目标MAC CE的类型,所述目标MAC CE的类型是指所述第一MAC CE,或者所述第二MAC CE,或者所述第三MAC CE。
●在一实施方式中,所述第一子头携带RAPID。
msgB可以被采用相同RO的多个UE检测到,所以仍然需要RAPID指示选择不同preamble的UE,即UE检测到该msgB,会根据其在msgA中采用的前导码索引(preamble index)来查找第一子头中的RAPID,看是否与msgA中的preamble index匹配。
●在一实施方式中,所述第一子头携带第三指示信息,所述第三指示信息用于指示所述目标MAC CE的类型。进一步,所述第三指示信息可以通过以下方式实现:
方式一:所述第三指示信息为LCID,所述LCID用于指示所述目标MAC CE的类型。
举个例子:参照图6-4,第一子头包含的内容有RAPID和LCID,其中,LCID用于指示不同的MAC CE类型。
方式二:所述第三指示信息为第一类型信息,所述第一类型信息用于指示所述目标MAC CE的类型和/或子头的类型。这里,子头的类型分为两种,即第一子头类型和第二子头类型,其中,第一子头类型是指BI子头,BI子头包含的内容有第一类型信息和BI信息;第二子头类型是指只包含第一类型信息的子头,进一步,第二子头可以包含或者不包含RAPID。对于第一子头而言,第一子头中携带的第一类型信息用于指示该第一子头对应的目标MAC CE的类型和/或该第一子头的类型。
举个例子:第一类型信息(T1)采用3bit能指示四种不同的类型,当然具体采用多少bit取决于需要指示多少种不同类型的MAC CE。以第一类型信息包括3bit为例,其所指示的类型见如下表1所示:
000 第三MAC CE(见图3-4)
001 第一MAC CE(格式一,见图6-1)
010 第一MAC CE(格式二,见图6-2)
011 第二MAC CE(见图6-3)
100 填充(Padding)
101 BI子头
表1
举个例子:参照图6-5,第一子头包含的内容有RAPID和第一类型信息(T1),其中,T1用于指示不同的MAC CE类型,图6-5中的T1包含3bit。
举个例子:参照图6-6,为了兼容四步随机接入过程,第一子头包含的内容有RAPID、第二类型信息(T)和第一类型信息(T1),其中,T用于指示所述第一子头是包含RAPID还是包含BI信息,T1用于指示不同的MAC CE类型。图6-6中的T1包含2bit,最多只能指示四种不同的MAC CE类型。
II)所述MAC PDU还包括一个第二MAC子PDU,所述第二MAC子PDU只包括第二子头,所述第二子头携带所述第二指示信息,所述第二指示信息为BI信息。
进一步,所述第二子头还携带第一类型信息,其中,所述第一类型信息用于指示目标MAC CE的类型和/或子头的类型。对于第二子头而言,第二子头中携带的第一类型信息用于指示该第二子头的类型(即BI子头)。
进一步,所述第二子头还携带第二类型信息,所述第二类型信息用于指示所述第二子头是包含RAPID还是包含BI信息。
举个例子:参照图6-7,第二子头包含的内容有BI、第一类型信息(T1),这里,T1用于指示第二子头包含BI信息。图6-7中的T1包含3bit。
举个例子:参照图6-8,为了兼容四步随机接入过程,第二子头包含的内容有BI、第二类型信息(T),这里,T用于指示第二子头包含BI信息。图6-8中的T包含1bit。
具体地,msgB的MAC PDU的数据格式如图6-9所示,MAC PDU包括多个MAC子PDU(MAC subPDU),分别为MAC subPDU1、MAC subPDU2、MAC subPDU3等等。其中,MAC subPDU1包括第二子头,第二子头的格式参照图6-7或图6-8所示。除MAC subPDU1以外的其他MAC subPDU,如MAC subPDU2包含第一子头和目标MAC CE,目标MAC CE可以是前述的第一MAC CE,或第二MAC CE,或第三MAC CE。第一子头的格式参数图6-4或图6-5或图6-6所示。
本申请实施例中,对于msgB的MAC PDU的子头(subheader)的设计,还可以采用如下扩展的方案。
方案一:
第二子头(即携带BI的子头)包含1byte(参照图6-7所示),第一MAC CE和第二MAC CE的第一子头包含1byte(参照图6-10所示),第三MAC CE的第一子头包含2byte(参照图6-5所示)。
这里,对于第一MAC CE和第二MAC CE的情况,由于UE能够通过竞争冲突解决ID来判断该MAC subPDU是否属于自己,所以不需要再在子头(subheader)中携带RAPID,参照图6-10所示,第一MAC CE和第二MAC CE的第一子头只包含第一类型信息(T1)。一种T1的取值参照如下表2所示:
000 BI子头
001 第一MAC CE(格式一,见图6-1)
010 第一MAC CE(格式二,见图6-2)
011 第二MAC CE(见图6-3)
100 第三MAC CE(见图3-4)
101 填充(Padding)
表2
方案一的好处是,对于subheader可以节省1个byte的开销;如果响应不同UE的第一MAC CE或第二MAC CE比较多,UE需要尝试很多个MAC subPDU才能找到自己的MAC subPDU。
方案二
在上述方案一的基础上,对于subheader的设计,可以设计一种使得subheader都为1byte的subheader。也就是说,对于第三MAC CE的第一子头,可以把第一子头中的 RAPID移到第三MAC CE中。具体地,第二子头(即携带BI的子头)包含1byte(参照图6-7所示),第一MAC CE、第二MAC CE以及第三MAC CE的第一子头包含1byte(参照图6-10所示)。相应地,第三MAC CE的格式需要修改成图6-11所示,包含的内容有:TAC、UL Grant、TC-RNTI、RAPID。图6-10中的一种T1的取值参照如下表3所示:
000 BI子头
001 第一MAC CE(格式一,见图6-1)
010 第一MAC CE(格式二,见图6-2)
011 第二MAC CE(见图6-3)
100 第三MAC CE(见图6-10)
101 填充(Padding)
表3
方案三
在上述方案一的基础上,对于subheader的设计,可以设计一种使得subheader都为1byte的subheader。其中,msgB中的第三MAC CE放在另外一个PDSCH中发送。具体地,第二子头(即携带BI的子头)包含1byte(参照图6-7所示),第一MAC CE和第二MAC CE的第一子头包含1byte(参照图6-10所示)。图6-10中的一种T1的取值参照如下表4所示:
000 BI子头
001 第一MAC CE(格式一,见图6-1)
010 第一MAC CE(格式二,见图6-2)
011 第二MAC CE(见图6-3)
101 填充(Padding)
表4
通过上述方案设计出msgB的MAC PDU格式之后,本申请实施例还规定了两种UE类型在收到该MAC PDU的行为,可以分为:
I)第一类UE:连接态UE。
所述UE在所述第一消息的上行数据信道中至少传输第四MAC CE,所述第四MAC CE携带C-RNTI。即:连接态UE会在msgA的PUSCH中传输C-RNTI MAC CE。
第一类UE传输第一消息后,在第一窗口/定时器内接收第二消息的调度指令,如果所述UE在所述第一窗口内收到所述第二消息的调度指令,则所述UE通过所述第二消息的MAC PDU中携带的所述第三指示信息,确定所述MAC PDU中是否包含第一MAC CE和/或第三MAC CE,其中,
●如果所述MAC PDU中包含第一MAC CE,且所述第一MAC CE中的C-RNTI与所述第一消息中的C-RNTI一致,则冲突解决。
需要说明的是,MAC PDU中不一定会有第一MAC CE,这种情况下,UE的冲突解决是通过接收C-RNTI加扰的PDCCH来实现的。具体地,如果UE接收到的第二消息中没有第三MAC CE,则UE继续盲检看是否有C-RNTI加扰的PDCCH。也就是说第一类UE既需要盲检RA-RNTI加扰的PDCCH,也要盲检C-RNTI加扰的PDCCH。其中,C-RNTI加扰的PDCCH用于冲突解决。
●如果所述MAC PDU中包含第三MAC CE,且所述第三MAC CE中包含的RAPID或者第三MAC CE对应的第一子包头中的RAPID与所述第一消息中的前导码的索引信息一致,则所述UE从2步随机接入过程回退到4步随机接入过程。
●如果所述MAC PDU中未包含第一MAC CE和第三MAC CE,则所述UE在所 述第一窗口结束后重传所述第一消息,其中,所述第一消息的重传采用所述第二消息中的BI值做回退。
II)第二类UE:空闲态UE或非激活态UE或连接态UE
所述UE在所述第一消息的上行数据信道中传输CCCH SDU。即:空闲态UE或非激活态UE或连接态UE会在msgA新的PUSCH中传输CCCH SDU。
第二类UE传输第一消息后,在第一窗口/定时器内接收第二消息的调度指令,如果所述UE在所述第一窗口内收到所述第二消息的调度指令,则所述UE通过所述第二消息的MAC PDU中携带的所述第三指示信息,确定所述MAC PDU中是否包含第二MAC CE和/或第三MAC CE,其中,
●如果所述MAC PDU中包含第二MAC CE,且所述第二MAC CE中的第二冲突解决标识与所述第一消息中的CCCH SDU匹配,则冲突解决。
●如果所述MAC PDU中包含第三MAC CE,且所述第三MAC CE中包含的RAPID或者第三MAC CE对应的第一子包头中的RAPID与所述第一消息中的前导码的索引信息一致,则所述UE从2步随机接入过程回退到4步随机接入过程。
●如果所述MAC PDU中未包含第二MAC CE和第三MAC CE,则所述UE在所述第一窗口结束后重传所述第一消息,其中,所述第一消息的重传采用所述第二消息中的BI值做回退。
图7为本申请实施例提供的随机接入装置的结构组成示意图一,该随机接入装置应用于用户设备,所述装置包括:
发送单元701,用于发送第一消息;
接收单元702,用于在第一窗口内检测第二消息的调度指令;
所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。
在一实施方式中,所述第一消息包括前导码和上行数据信道。
在一实施方式中,所述第二消息包括MAC PDU,所述MAC PDU包括以下至少之一:
第一MAC CE,所述第一MAC CE携带所述第一冲突解决标识,所述第一冲突解决标识为C-RNTI;
第二MAC CE,所述第二MAC CE携带所述第二冲突解决标识;
第三MAC CE,所述第三MAC CE携带RAR,所述RAR用于指示从2步随机接入过程回退到4步随机接入过程。
在一实施方式中,所述第一MAC CE还携带上行定时提前量信息。
在一实施方式中,所述第一MAC CE还携带上行定时提前量信息和上行调度信息。
在一实施方式中,所述第二MAC CE还携带上行定时提前量信息和C-RNTI。
在一实施方式中,所述RAR包括上行定时提前量信息、上行调度信息以及TC-RNTI。
在一实施方式中,所述RAR包括上行定时提前量信息、上行调度信息、TC-RNTI以及RAPID。
在一实施方式中,所述MAC PDU包括多个第一MAC子PDU,所述第一MAC子PDU包括第一子头和目标MAC CE,所述第一子头携带第三指示信息,所述第三 指示信息用于指示所述目标MAC CE的类型,所述目标MAC CE的类型是指所述第一MAC CE,或者所述第二MAC CE,或者所述第三MAC CE。
在一实施方式中,所述第三指示信息为LCID,所述LCID用于指示所述目标MAC CE的类型。
在一实施方式中,所述第三指示信息为第一类型信息,所述第一类型信息用于指示所述目标MAC CE的类型和/或所述第一子头的类型。
在一实施方式中,所述第一子头还携带RAPID。
在一实施方式中,所述第一子头还携带第二类型信息,所述第二类型信息用于指示所述第一子头是包含RAPID还是包含BI信息。
在一实施方式中,所述MAC PDU还包括一个第二MAC子PDU,所述第二MAC子PDU只包括第二子头,所述第二子头携带所述第二指示信息,所述第二指示信息为BI信息。
在一实施方式中,所述第二子头还携带第一类型信息,所述第一类型信息用于指示所述第二子头的类型。
在一实施方式中,所述第二子头还携带第二类型信息,所述第二类型信息用于指示所述第二子头是包含RAPID还是包含BI信息。
在一实施方式中,所述用户设备为连接态UE的情况下,
所述发送单元701在所述第一消息的上行数据信道中至少传输第四MAC CE,所述第四MAC CE携带C-RNTI。
在一实施方式中,所述装置还包括:
确定单元703,用于如果所述接收单元在所述第一窗口内收到所述第二消息的调度指令,则通过所述第二消息的MAC PDU中携带的所述第三指示信息,确定所述MAC PDU中是否包含第一MAC CE和/或第三MAC CE。
在一实施方式中,所述装置还包括处理单元704,用于:
如果所述MAC PDU中包含第一MAC CE,且所述第一MAC CE中的C-RNTI与所述第一消息中的C-RNTI一致,则冲突解决;
如果所述MAC PDU中包含第三MAC CE,且所述第三MAC CE中包含的RAPID或者第三MAC CE对应的第一子包头中的RAPID与所述第一消息中的前导码的索引信息一致,则从2步随机接入过程回退到4步随机接入过程;
如果所述MAC PDU中未包含第一MAC CE和第三MAC CE,则在所述第一窗口结束后重传所述第一消息,其中,所述第一消息的重传采用所述第二消息中的BI值做回退。
在一实施方式中,所述用户设备为空闲态UE或非激活态UE或连接态UE的情况下,
所述发送单元701在所述第一消息的上行数据信道中传输CCCH SDU。
在一实施方式中,所述装置还包括:
确定单元703,用于如果所述接收单元在所述第一窗口内收到所述第二消息的调度指令,则通过所述第二消息的MAC PDU中携带的所述第三指示信息,确定所述MAC PDU中是否包含第二MAC CE和/或第三MAC CE。
在一实施方式中,所述装置还包括处理单元704,用于:
如果所述MAC PDU中包含第二MAC CE,且所述第二MAC CE中的第二冲突解决标识与所述第一消息中的CCCH SDU匹配,则冲突解决;
如果所述MAC PDU中包含第三MAC CE,且所述第三MAC CE中包含的RAPID或者第三MAC CE对应的第一子包头中的RAPID与所述第一消息中的前导码的索引信 息一致,则从2步随机接入过程回退到4步随机接入过程;
如果所述MAC PDU中未包含第二MAC CE和第三MAC CE,则在所述第一窗口结束后重传所述第一消息,其中,所述第一消息的重传采用所述第二消息中的BI值做回退。
本领域技术人员应当理解,本申请实施例的上述随机接入装置的相关描述可以参照本申请实施例的随机接入方法的相关描述进行理解。
图8为本申请实施例提供的随机接入装置的结构组成示意图二,该随机接入装置应用于网络设备,所述装置包括:
接收单元801,用于接收UE发送的第一消息;
发送单元802,用于在第一窗口内发送第二消息的调度指令;
所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。
在一实施方式中,所述第一消息包括前导码和上行数据信道。
在一实施方式中,所述第二消息包括MAC PDU,所述MAC PDU包括以下至少之一:
第一MAC CE,所述第一MAC CE携带所述第一冲突解决标识,所述第一冲突解决标识为C-RNTI;
第二MAC CE,所述第二MAC CE携带所述第二冲突解决标识;
第三MAC CE,所述第三MAC CE携带随机接入响应RAR,所述RAR用于指示从2步随机接入过程回退到4步随机接入过程。
在一实施方式中,所述第一MAC CE还携带上行定时提前量信息。
在一实施方式中,所述第一MAC CE还携带上行定时提前量信息和上行调度信息。
在一实施方式中,所述第二MAC CE还携带上行定时提前量信息和C-RNTI。
在一实施方式中,所述RAR包括上行定时提前量信息、上行调度信息以及TC-RNTI。
在一实施方式中,所述RAR包括上行定时提前量信息、上行调度信息、TC-RNTI以及RAPID。
在一实施方式中,所述MAC PDU包括多个第一MAC子PDU,所述第一MAC子PDU包括第一子头和目标MAC CE,所述第一子头携带第三指示信息,所述第三指示信息用于指示所述目标MAC CE的类型,所述目标MAC CE的类型是指所述第一MAC CE,或者所述第二MAC CE,或者所述第三MAC CE。
在一实施方式中,所述第三指示信息为LCID,所述LCID用于指示所述目标MAC CE的类型和/或所述第一子头的类型。
在一实施方式中,所述第三指示信息为第一类型信息,所述第一类型信息用于指示所述目标MAC CE的类型。
在一实施方式中,所述第一子头还携带RAPID。
在一实施方式中,所述第一子头还携带第二类型信息,所述第二类型信息用于指示所述第一子头是包含RAPID还是包含BI信息。
在一实施方式中,所述MAC PDU还包括一个第二MAC子PDU,所述第二MAC子PDU只包括第二子头,所述第二子头携带所述第二指示信息,所述第二指示信息 为BI信息。
在一实施方式中,所述第二子头还携带第一类型信息,所述第一类型信息用于指示所述第二子头的类型。
在一实施方式中,所述第二子头还携带第二类型信息,所述第二类型信息用于指示所述第二子头是包含RAPID还是包含BI信息。
本领域技术人员应当理解,本申请实施例的上述随机接入装置的相关描述可以参照本申请实施例的随机接入方法的相关描述进行理解。
图9是本申请实施例提供的一种通信设备600示意性结构图。该通信设备可以是用户设备,也可以是网络设备,图9所示的通信设备600包括处理器610,处理器610可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图9所示,通信设备600还可以包括存储器620。其中,处理器610可以从存储器620中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器620可以是独立于处理器610的一个单独的器件,也可以集成在处理器610中。
可选地,如图9所示,通信设备600还可以包括收发器630,处理器610可以控制该收发器630与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备600具体可为本申请实施例的网络设备,并且该通信设备600可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备600具体可为本申请实施例的移动终端/终端设备,并且该通信设备600可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
图10是本申请实施例的芯片的示意性结构图。图10所示的芯片700包括处理器710,处理器710可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图10所示,芯片700还可以包括存储器720。其中,处理器710可以从存储器720中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器720可以是独立于处理器710的一个单独的器件,也可以集成在处理器710中。
可选地,该芯片700还可以包括输入接口730。其中,处理器710可以控制该输入接口730与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该芯片700还可以包括输出接口740。其中,处理器710可以控制该输出接口740与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该芯片可应用于本申请实施例中的网络设备,并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该芯片可应用于本申请实施例中的移动终端/终端设备,并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
应理解,本申请实施例提到的芯片还可以称为***级芯片,***芯片,芯片***或片上***芯片等。
图11是本申请实施例提供的一种通信***1100的示意性框图。如图11所示,该通信***1100包括用户设备1110和网络设备1120。
其中,该用户设备1110可以用于实现上述方法中由终端设备实现的相应的功能,以及该网络设备1120可以用于实现上述方法中由网络设备实现的相应的功能为了简洁,在此不再赘述。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本申请实施例中的网络设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现 的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
可选的,该计算机程序产品可应用于本申请实施例中的网络设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的网络设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的移动终端/终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的***、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,)ROM、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应 涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。

Claims (86)

  1. 一种随机接入方法,所述方法包括:
    用户设备UE发送完第一消息后,在第一窗口内检测第二消息的调度指令;
    所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。
  2. 根据权利要求1所述的方法,其中,所述第一消息包括前导码和上行数据信道。
  3. 根据权利要求1或2所述的方法,其中,所述第二消息包括媒体接入控制协议数据单元MAC PDU,所述MAC PDU包括以下至少之一:
    第一媒体接入控制控制单元MAC CE,所述第一MAC CE携带所述第一冲突解决标识,所述第一冲突解决标识为小区无线网络临时标识C-RNTI;
    第二MAC CE,所述第二MAC CE携带所述第二冲突解决标识;
    第三MAC CE,所述第三MAC CE携带随机接入响应RAR,所述RAR用于指示从2步随机接入过程回退到4步随机接入过程。
  4. 根据权利要求3所述的方法,其中,所述第一MAC CE还携带上行定时提前量信息。
  5. 根据权利要求3所述的方法,其中,所述第一MAC CE还携带上行定时提前量信息和上行调度信息。
  6. 根据权利要求3至5中任一项所述的方法,其中,所述第二MAC CE还携带上行定时提前量信息和C-RNTI。
  7. 根据权利要求3至6中任一项所述的方法,其中,所述RAR包括上行定时提前量信息、上行调度信息以及临时小区无线网络临时标识TC-RNTI。
  8. 根据权利要求3至6中任一项所述的方法,其中,所述RAR包括上行定时提前量信息、上行调度信息、TC-RNTI以及随机接入前导码标识RAPID。
  9. 根据权利要求3至8中任一项所述的方法,其中,所述MAC PDU包括多个第一MAC子PDU,所述第一MAC子PDU包括第一子头和目标MAC CE,所述第一子头携带第三指示信息,所述第三指示信息用于指示所述目标MAC CE的类型,所述目标MAC CE的类型是指所述第一MAC CE,或者所述第二MAC CE,或者所述第三MAC CE。
  10. 根据权利要求9所述的方法,其中,所述第三指示信息为逻辑信道标识LCID,所述LCID用于指示所述目标MAC CE的类型。
  11. 根据权利要求9所述的方法,其中,所述第三指示信息为第一类型信息,所述第一类型信息用于指示所述目标MAC CE的类型和/或所述第一子头的类型。
  12. 根据权利要求9至11中任一项所述的方法,其中,所述第一子头还携带RAPID。
  13. 根据权利要求12所述的方法,其中,所述第一子头还携带第二类型信息,所述第二类型信息用于指示所述第一子头是包含RAPID还是包含回退指示BI信息。
  14. 根据权利要求9至13中任一项所述的方法,其中,所述MAC PDU还包括一个第二MAC子PDU,所述第二MAC子PDU只包括第二子头,所述第二子头携带所述第二指示信息,所述第二指示信息为BI信息。
  15. 根据权利要求14所述的方法,其中,所述第二子头还携带第一类型信息,所 述第一类型信息用于指示所述第二子头的类型。
  16. 根据权利要求14所述的方法,其中,所述第二子头还携带第二类型信息,所述第二类型信息用于指示所述第二子头是包含RAPID还是包含BI信息。
  17. 根据权利要求9至16中任一项所述的方法,其中,所述UE为连接态UE的情况下,
    所述UE在所述第一消息的上行数据信道中至少传输第四MAC CE,所述第四MAC CE携带C-RNTI。
  18. 根据权利要求17所述的方法,其中,所述方法还包括:
    如果所述UE在所述第一窗口内收到所述第二消息的调度指令,则所述UE通过所述第二消息的MAC PDU中携带的所述第三指示信息,确定所述MAC PDU中是否包含第一MAC CE和/或第三MAC CE。
  19. 根据权利要求18所述的方法,其中,所述方法还包括:
    如果所述MAC PDU中包含第一MAC CE,且所述第一MAC CE中的C-RNTI与所述第一消息中的C-RNTI一致,则冲突解决;
    如果所述MAC PDU中包含第三MAC CE,且所述第三MAC CE中包含的RAPID或者第三MAC CE对应的第一子包头中的RAPID与所述第一消息中的前导码的索引信息一致,则所述UE从2步随机接入过程回退到4步随机接入过程;
    如果所述MAC PDU中未包含第一MAC CE和第三MAC CE,则所述UE在所述第一窗口结束后重传所述第一消息,其中,所述第一消息的重传采用所述第二消息中的BI值做回退。
  20. 根据权利要求9至16中任一项所述的方法,其中,所述UE为空闲态UE或非激活态UE或连接态UE的情况下,
    所述UE在所述第一消息的上行数据信道中传输公共控制信道服务数据单元CCCH SDU。
  21. 根据权利要求20所述的方法,其中,所述方法还包括:
    如果所述UE在所述第一窗口内收到所述第二消息的调度指令,则所述UE通过所述第二消息的MAC PDU中携带的所述第三指示信息,确定所述MAC PDU中是否包含第二MAC CE和/或第三MAC CE。
  22. 根据权利要求21所述的方法,其中,所述方法还包括:
    如果所述MAC PDU中包含第二MAC CE,且所述第二MAC CE中的第二冲突解决标识与所述第一消息中的CCCH SDU匹配,则冲突解决;
    如果所述MAC PDU中包含第三MAC CE,且所述第三MAC CE中包含的RAPID或者第三MAC CE对应的第一子包头中的RAPID与所述第一消息中的前导码的索引信息一致,则所述UE从2步随机接入过程回退到4步随机接入过程;
    如果所述MAC PDU中未包含第二MAC CE和第三MAC CE,则所述UE在所述第一窗口结束后重传所述第一消息,其中,所述第一消息的重传采用所述第二消息中的BI值做回退。
  23. 一种随机接入方法,所述方法包括:
    网络设备接收UE发送的第一消息,在第一窗口内发送第二消息的调度指令;
    所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。
  24. 根据权利要求23所述的方法,其中,所述第一消息包括前导码和上行数据信道。
  25. 根据权利要求23或24所述的方法,其中,所述第二消息包括MAC PDU,所述MAC PDU包括以下至少之一:
    第一MAC CE,所述第一MAC CE携带所述第一冲突解决标识,所述第一冲突解决标识为C-RNTI;
    第二MAC CE,所述第二MAC CE携带所述第二冲突解决标识;
    第三MAC CE,所述第三MAC CE携带随机接入响应RAR,所述RAR用于指示从2步随机接入过程回退到4步随机接入过程。
  26. 根据权利要求25所述的方法,其中,所述第一MAC CE还携带上行定时提前量信息。
  27. 根据权利要求25所述的方法,其中,所述第一MAC CE还携带上行定时提前量信息和上行调度信息。
  28. 根据权利要求25至27中任一项所述的方法,其中,所述第二MAC CE还携带上行定时提前量信息和C-RNTI。
  29. 根据权利要求25至28中任一项所述的方法,其中,所述RAR包括上行定时提前量信息、上行调度信息以及TC-RNTI。
  30. 根据权利要求25至28中任一项所述的方法,其中,所述RAR包括上行定时提前量信息、上行调度信息、TC-RNTI以及RAPID。
  31. 根据权利要求25至30中任一项所述的方法,其中,所述MAC PDU包括多个第一MAC子PDU,所述第一MAC子PDU包括第一子头和目标MAC CE,所述第一子头携带第三指示信息,所述第三指示信息用于指示所述目标MAC CE的类型,所述目标MAC CE的类型是指所述第一MAC CE,或者所述第二MAC CE,或者所述第三MAC CE。
  32. 根据权利要求31所述的方法,其中,所述第三指示信息为LCID,所述LCID用于指示所述目标MAC CE的类型。
  33. 根据权利要求31所述的方法,其中,所述第三指示信息为第一类型信息,所述第一类型信息用于指示所述目标MAC CE的类型和/或所述第一子头的类型。
  34. 根据权利要求31至33中任一项所述的方法,其中,所述第一子头还携带RAPID。
  35. 根据权利要求34所述的方法,其中,所述第一子头还携带第二类型信息,所述第二类型信息用于指示所述第一子头是包含RAPID还是包含BI信息。
  36. 根据权利要求31至35中任一项所述的方法,其中,所述MAC PDU还包括一个第二MAC子PDU,所述第二MAC子PDU只包括第二子头,所述第二子头携带所述第二指示信息,所述第二指示信息为BI信息。
  37. 根据权利要求36所述的方法,其中,所述第二子头还携带第一类型信息,所述第一类型信息用于指示所述第二子头的类型。
  38. 根据权利要求36所述的方法,其中,所述第二子头还携带第二类型信息,所述第二类型信息用于指示所述第二子头是包含RAPID还是包含BI信息。
  39. 一种随机接入装置,应用于用户设备,所述装置包括:
    发送单元,用于发送第一消息;
    接收单元,用于在第一窗口内检测第二消息的调度指令;
    所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决, 所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。
  40. 根据权利要求39所述的装置,其中,所述第一消息包括前导码和上行数据信道。
  41. 根据权利要求39或40所述的装置,其中,所述第二消息包括MAC PDU,所述MAC PDU包括以下至少之一:
    第一MAC CE,所述第一MAC CE携带所述第一冲突解决标识,所述第一冲突解决标识为C-RNTI;
    第二MAC CE,所述第二MAC CE携带所述第二冲突解决标识;
    第三MAC CE,所述第三MAC CE携带RAR,所述RAR用于指示从2步随机接入过程回退到4步随机接入过程。
  42. 根据权利要求41所述的装置,其中,所述第一MAC CE还携带上行定时提前量信息。
  43. 根据权利要求41所述的装置,其中,所述第一MAC CE还携带上行定时提前量信息和上行调度信息。
  44. 根据权利要求41至43中任一项所述的装置,其中,所述第二MAC CE还携带上行定时提前量信息和C-RNTI。
  45. 根据权利要求41至44中任一项所述的装置,其中,所述RAR包括上行定时提前量信息、上行调度信息以及TC-RNTI。
  46. 根据权利要求41至44中任一项所述的装置,其中,所述RAR包括上行定时提前量信息、上行调度信息、TC-RNTI以及RAPID。
  47. 根据权利要求41至46中任一项所述的装置,其中,所述MAC PDU包括多个第一MAC子PDU,所述第一MAC子PDU包括第一子头和目标MAC CE,所述第一子头携带第三指示信息,所述第三指示信息用于指示所述目标MAC CE的类型,所述目标MAC CE的类型是指所述第一MAC CE,或者所述第二MAC CE,或者所述第三MAC CE。
  48. 根据权利要求47所述的装置,其中,所述第三指示信息为LCID,所述LCID用于指示所述目标MAC CE的类型。
  49. 根据权利要求47所述的装置,其中,所述第三指示信息为第一类型信息,所述第一类型信息用于指示所述目标MAC CE的类型和/或所述第一子头的类型。
  50. 根据权利要求47至49中任一项所述的装置,其中,所述第一子头还携带RAPID。
  51. 根据权利要求50所述的装置,其中,所述第一子头还携带第二类型信息,所述第二类型信息用于指示所述第一子头是包含RAPID还是包含BI信息。
  52. 根据权利要求47至51中任一项所述的装置,其中,所述MAC PDU还包括一个第二MAC子PDU,所述第二MAC子PDU只包括第二子头,所述第二子头携带所述第二指示信息,所述第二指示信息为BI信息。
  53. 根据权利要求52所述的装置,其中,所述第二子头还携带第一类型信息,所述第一类型信息用于指示所述第二子头的类型。
  54. 根据权利要求52所述的装置,其中,所述第二子头还携带第二类型信息,所述第二类型信息用于指示所述第二子头是包含RAPID还是包含BI信息。
  55. 根据权利要求47至54中任一项所述的装置,其中,所述用户设备为连接态UE的情况下,
    所述发送单元在所述第一消息的上行数据信道中至少传输第四MAC CE,所述第四MAC CE携带C-RNTI。
  56. 根据权利要求55所述的装置,其中,所述装置还包括:
    确定单元,用于如果所述接收单元在所述第一窗口内收到所述第二消息的调度指令,则通过所述第二消息的MAC PDU中携带的所述第三指示信息,确定所述MAC PDU中是否包含第一MAC CE和/或第三MAC CE。
  57. 根据权利要求56所述的装置,其中,所述装置还包括处理单元,用于:
    如果所述MAC PDU中包含第一MAC CE,且所述第一MAC CE中的C-RNTI与所述第一消息中的C-RNTI一致,则冲突解决;
    如果所述MAC PDU中包含第三MAC CE,且所述第三MAC CE中包含的RAPID或者第三MAC CE对应的第一子包头中的RAPID与所述第一消息中的前导码的索引信息一致,则从2步随机接入过程回退到4步随机接入过程;
    如果所述MAC PDU中未包含第一MAC CE和第三MAC CE,则在所述第一窗口结束后重传所述第一消息,其中,所述第一消息的重传采用所述第二消息中的BI值做回退。
  58. 根据权利要求47至54中任一项所述的装置,其中,所述用户设备为空闲态UE或非激活态UE或连接态UE的情况下,
    所述发送单元在所述第一消息的上行数据信道中传输CCCH SDU。
  59. 根据权利要求58所述的装置,其中,所述装置还包括:
    确定单元,用于如果所述接收单元在所述第一窗口内收到所述第二消息的调度指令,则通过所述第二消息的MAC PDU中携带的所述第三指示信息,确定所述MAC PDU中是否包含第二MAC CE和/或第三MAC CE。
  60. 根据权利要求59所述的装置,其中,所述装置还包括处理单元,用于:
    如果所述MAC PDU中包含第二MAC CE,且所述第二MAC CE中的第二冲突解决标识与所述第一消息中的CCCH SDU匹配,则冲突解决;
    如果所述MAC PDU中包含第三MAC CE,且所述第三MAC CE中包含的RAPID或者第三MAC CE对应的第一子包头中的RAPID与所述第一消息中的前导码的索引信息一致,则从2步随机接入过程回退到4步随机接入过程;
    如果所述MAC PDU中未包含第二MAC CE和第三MAC CE,则在所述第一窗口结束后重传所述第一消息,其中,所述第一消息的重传采用所述第二消息中的BI值做回退。
  61. 一种随机接入装置,应用于网络设备,所述装置包括:
    接收单元,用于接收UE发送的第一消息;
    发送单元,用于在第一窗口内发送第二消息的调度指令;
    所述第二消息包括以下至少之一:第一冲突解决标识、第二冲突解决标识、第一指示信息、第二指示信息,其中,所述第一冲突解决标识用于连接态UE的冲突解决,所述第二冲突解决标识用于空闲态UE或非激活态UE或连接态UE的冲突解决,所述第一指示信息用于指示从2步随机接入过程回退到4步随机接入过程,所述第二指示信息用于指示所述UE在重传所述第一消息时的随机回退值。
  62. 根据权利要求61所述的装置,其中,所述第一消息包括前导码和上行数据信道。
  63. 根据权利要求61或62所述的装置,其中,所述第二消息包括MAC PDU,所述MAC PDU包括以下至少之一:
    第一MAC CE,所述第一MAC CE携带所述第一冲突解决标识,所述第一冲突解 决标识为C-RNTI;
    第二MAC CE,所述第二MAC CE携带所述第二冲突解决标识;
    第三MAC CE,所述第三MAC CE携带随机接入响应RAR,所述RAR用于指示从2步随机接入过程回退到4步随机接入过程。
  64. 根据权利要求63所述的装置,其中,所述第一MAC CE还携带上行定时提前量信息。
  65. 根据权利要求63所述的装置,其中,所述第一MAC CE还携带上行定时提前量信息和上行调度信息。
  66. 根据权利要求63至65中任一项所述的装置,其中,所述第二MAC CE还携带上行定时提前量信息和C-RNTI。
  67. 根据权利要求63至66中任一项所述的装置,其中,所述RAR包括上行定时提前量信息、上行调度信息以及TC-RNTI。
  68. 根据权利要求63至66中任一项所述的装置,其中,所述RAR包括上行定时提前量信息、上行调度信息、TC-RNTI以及RAPID。
  69. 根据权利要求63至68中任一项所述的装置,其中,所述MAC PDU包括多个第一MAC子PDU,所述第一MAC子PDU包括第一子头和目标MAC CE,所述第一子头携带第三指示信息,所述第三指示信息用于指示所述目标MAC CE的类型,所述目标MAC CE的类型是指所述第一MAC CE,或者所述第二MAC CE,或者所述第三MAC CE。
  70. 根据权利要求69所述的装置,其中,所述第三指示信息为LCID,所述LCID用于指示所述目标MAC CE的类型。
  71. 根据权利要求69所述的装置,其中,所述第三指示信息为第一类型信息,所述第一类型信息用于指示所述目标MAC CE的类型和/或所述第一子头的类型。
  72. 根据权利要求69至71中任一项所述的装置,其中,所述第一子头还携带RAPID。
  73. 根据权利要求72所述的装置,其中,所述第一子头还携带第二类型信息,所述第二类型信息用于指示所述第一子头是包含RAPID还是包含BI信息。
  74. 根据权利要求69至73中任一项所述的装置,其中,所述MAC PDU还包括一个第二MAC子PDU,所述第二MAC子PDU只包括第二子头,所述第二子头携带所述第二指示信息,所述第二指示信息为BI信息。
  75. 根据权利要求74所述的装置,其中,所述第二子头还携带第一类型信息,所述第一类型信息用于指示所述第二子头的类型。
  76. 根据权利要求74所述的装置,其中,所述第二子头还携带第二类型信息,所述第二类型信息用于指示所述第二子头是包含RAPID还是包含BI信息。
  77. 一种用户设备,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至22中任一项所述的方法。
  78. 一种网络设备,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求23至38中任一项所述的方法。
  79. 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至22中任一项所述的方法。
  80. 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求23至38中任一项所述的方法。
  81. 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至22中任一项所述的方法。
  82. 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求23至38中任一项所述的方法。
  83. 一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至22中任一项所述的方法。
  84. 一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求23至38中任一项所述的方法。
  85. 一种计算机程序,所述计算机程序使得计算机执行如权利要求1至22中任一项所述的方法。
  86. 一种计算机程序,所述计算机程序使得计算机执行如权利要求23至38中任一项所述的方法。
PCT/CN2019/084154 2019-04-24 2019-04-24 一种随机接入方法及装置、用户设备、网络设备 WO2020215261A1 (zh)

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