WO2018127244A1 - 两步竞争随机接入方法和装置 - Google Patents

两步竞争随机接入方法和装置 Download PDF

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Publication number
WO2018127244A1
WO2018127244A1 PCT/CN2018/076501 CN2018076501W WO2018127244A1 WO 2018127244 A1 WO2018127244 A1 WO 2018127244A1 CN 2018076501 W CN2018076501 W CN 2018076501W WO 2018127244 A1 WO2018127244 A1 WO 2018127244A1
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Prior art keywords
terminal
rnti
message
random access
msg2
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PCT/CN2018/076501
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English (en)
French (fr)
Inventor
赵亚利
谌丽
许芳丽
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电信科学技术研究院
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Priority to US16/475,948 priority Critical patent/US11470647B2/en
Publication of WO2018127244A1 publication Critical patent/WO2018127244A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/022—Selective call receivers
    • H04W88/023—Selective call receivers with message or information receiving capability

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a two-step competitive random access method and apparatus.
  • the random access of the LTE (Long Term Evolution) system is classified into two types: contention random access and non-contention random access. The process is as follows.
  • the UE selects a Random Access Preamble (Radio Access Preamble) and a PRACH (Physical Random Access Channel) resource and uses the PRACH resource to send the selected Random Access Preamble to the base station.
  • a Random Access Preamble Radio Access Preamble
  • PRACH Physical Random Access Channel
  • the base station receives the preamble, calculates a timing advance TA (Time Alignment), and sends a random access response to the UE, where the random access response includes the timing advance information and a UL grant (uplink scheduling grant) for Msg3, and Temporary C-RNTI (or T-CRNTI) allocated on the network side.
  • TA Time Alignment
  • UL grant uplink scheduling grant
  • the PDCCH (Physical Downlink Control Channel) carrying the Msg2 scheduling message is scrambled by the RA-RNTI (Radio Access Radio Network Temporary Identity), and the RA-RNTI uniquely corresponds to the time-frequency resource of the Msg1 in the 10 ms window;
  • the Msg2 also carries a preamble ID, and the UE determines, by the RA-RNTI and the preamble ID, that the Msg2 corresponds to the Msg1 sent by the UE.
  • the UE sends an uplink transmission on the UL grant specified by the Msg2.
  • the content of the Msg3 uplink transmission is different for different random access reasons. For example, for the initial access, the Msg3 transmits an RRC connection establishment request.
  • Msg4 The contention resolution message, the UE can judge whether the random access is successful according to Msg4. For the initial access UE, after the contention resolution is successful, the temporary C-RNTI is automatically converted into the UE's unique UE identity C-RNTI in the cell.
  • Non-contention random access is used for handover, downlink data arrival, location, and acquisition of uplink timing.
  • the process is shown in Figure 2 and is mainly divided into three steps:
  • the base station allocates a dedicated preamble for non-contention random access and a PRACH resource used for random access to the UE.
  • Msg1 The UE sends the designated dedicated preamble to the base station on the designated PRACH resource according to the indication of Msg0. After receiving the Msg1, the base station calculates the uplink timing advance TA according to Msg1.
  • the base station sends a random access response to the UE.
  • the random access response includes timing advance information and a subsequent uplink transmission resource allocation UL grant, and the timing advance is used for the timing relationship of the UE subsequent uplink transmission.
  • Two-step competitive random access is a research hotspot of random access in current 5G systems.
  • the main solution is to carry the UE identity through Msg1, and then carry the UE identity through the Msg2 RAR MAC PDU, and the terminal sends and receives the message through the decision. Whether the UE identity is the same or not, and whether the random access is successful. But this is just a way, and if there are other solutions to consider.
  • the embodiments of the present disclosure provide a two-step competitive random access method and apparatus, which implements two-step competitive random access.
  • a two-step contention random access method comprising:
  • the terminal UE sends an Msg1 message
  • the terminal receives the physical layer scheduling signaling addressed to the C-RNTI, determining that the terminal is randomly selected in two steps The access was successful.
  • the terminal sends the Msg1 message, including:
  • the terminal determines whether it satisfies the two-step random access triggering condition that uses the C-RNTI as the UE identifier. If yes, the terminal sends an Msg1 message, where the UE identifier carried in the Msg1 message is a C-RNTI.
  • the two-step random access triggering condition using the C-RNTI as the UE identifier includes:
  • the terminal is currently in the uplink synchronization state or does not need uplink synchronization, and the terminal has uplink data to be sent, but no uplink resources; or
  • the terminal is currently in the uplink synchronization state or does not need uplink synchronization, and the terminal switches.
  • the Msg1 message includes: a random access preamble Random Access Preamble and a data part, where the C-RNTI is carried in the data part.
  • the data part further includes: a scheduling request SR, a buffer status reporting BSR, or data.
  • the method further includes:
  • the terminal Receiving, by the terminal, the Msg2 message before the Msg2 message receiving window or the Msg2 message receiving timer expires, and if the terminal successfully receives the Msg2 message, the terminal stops receiving the Msg2 message, where the Msg2 message is A message corresponding to the Msg1 message generated by the network side.
  • the method further includes:
  • the terminal listens before the Msg2 message receiving window or the Msg2 message receiving timer expires:
  • the physical layer scheduling signaling addressed by the C-RNTI carried in the Msg 1 message is utilized.
  • the search space corresponding to the physical layer scheduling signaling is a UE-specific search space.
  • the method further includes:
  • the terminal listens before the Msg2 message receiving window or the Msg2 message receiving timer expires:
  • the temporary cell radio network temporarily identifies the physical layer scheduling signaling addressed by the T-CRNTI.
  • the search space corresponding to the physical layer scheduling signaling is a common search space.
  • a two-step contention random access method is further provided, where the method includes:
  • the network side device receives the Msg1 message sent by the terminal;
  • the network side device determines that the contention is successful;
  • the network side device sends, to the terminal, a physical layer scheduling signaling scheduling Msg2 transmission addressed to the C-RNTI.
  • the Msg1 message includes: a Random Access Preamble and a data part, where the C-RNTI is carried in the data part.
  • the data part further includes: an SR, a BSR, or data.
  • the method further includes:
  • the network side device If the network side device can only receive the Random Acess Preamble in the Msg1 and the data part is not successfully received, the network side device sends the physical layer scheduling signaling scheduling Msg2 transmission for the T-CRNTI addressing to the terminal.
  • the physical layer scheduling signaling addressed for the C-RNTI or addressed for the T-CRNTI needs to be sent before the Msg2 message receiving window or the Msg2 message receiving timer times out.
  • a terminal is further provided, where the terminal includes:
  • a first sending module configured to send an Msg1 message
  • a first determining module configured to: if the UE identifier carried in the Msg1 message is a cell radio network temporary identifier C-RNTI, and the sending module receives the physical layer scheduling signaling addressed to the C-RNTI, It is determined that the two-step random access of the terminal is successful.
  • the first sending module includes:
  • a determining unit configured to determine whether the terminal satisfies a two-step random access triggering condition that uses the C-RNTI as the UE identifier
  • a sending unit configured to send the Msg1 message if the terminal meets the two-step random access triggering condition that uses the C-RNTI as the UE identifier, where the UE identifier carried in the Msg1 message is a C-RNTI.
  • the two-step random access triggering condition using the C-RNTI as the UE identifier includes:
  • the terminal is currently in the uplink synchronization state or does not need uplink synchronization, and the terminal has uplink data to be sent, but no uplink resources; or
  • the terminal is currently in the uplink synchronization state or does not need uplink synchronization, and the terminal switches.
  • the Msg1 message includes: a Random Access Preamble and a data part, where the C-RNTI is carried in the data part.
  • the data part further includes: an SR, a BSR, or data.
  • the terminal further includes:
  • a first receiving module configured to receive the Msg2 message before the Msg2 message receiving window or the Msg2 message receiving timer expires, and stop receiving the Msg2 message if the Msg2 message is successfully received by the network The message generated by the side corresponding to the Msg1 message.
  • the terminal further includes:
  • the first monitoring module is configured to: before the Msg2 message receiving window or the Msg2 message receiving timer times out, listen to: use physical layer scheduling signaling addressed by the C-RNTI carried in the Msg 1 message.
  • the search space corresponding to the physical layer scheduling signaling is a UE-specific search space.
  • the terminal further includes:
  • the second monitoring module is configured to: before the Msg2 message receiving window or the Msg2 message receiving timer times out, listen to: the temporary cell radio network temporarily identifies the physical layer scheduling signaling addressed by the T-CRNTI.
  • the search space corresponding to the physical layer scheduling signaling is a common search space.
  • a network side device is further provided, where the network side device includes:
  • a second receiving module configured to receive an Msg1 message sent by the terminal
  • a second determining module configured to determine that the contention is successful if the network side device successfully receives the Msg1, and the UE identifier carried in the Msg1 message is the cell radio network temporary identifier C-RNTI;
  • a second sending module configured to send, to the terminal, a physical layer scheduling signaling scheduled Msg2 transmission for the C-RNTI addressing.
  • the Msg1 message includes: a Random Access Preamble and a data part, where the C-RNTI is carried in the data part.
  • the data part further includes: an SR, a BSR, or data.
  • the network side device further includes:
  • the third sending module is configured to: if the network side device can only receive the Random Acess Preamble in the Msg1, and the data part is not successfully received, send the physical layer scheduling signaling scheduling Msg2 transmission for the T-CRNTI addressing to the terminal.
  • the physical layer scheduling signaling for the C-RNTI addressing or for the T-CRNTI addressing needs to be sent before the Msg2 message receiving window or the Msg2 message receiving timer times out.
  • a terminal comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor executing the The computer program implements the two-step contention random access method as described in the first aspect of the present disclosure.
  • a terminal comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the The computer program implements the two-step contention random access method as described in the second aspect of the present disclosure.
  • a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements a two-step competition as described in the first aspect of the present disclosure Random access method.
  • a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements a two-step competition as described in the second aspect of the present disclosure Random access method.
  • any of the foregoing technical solutions of the present disclosure has the following advantages or advantages: for a two-step contention random access, if the UE identifier carried in the Msg1 message is a C-RNTI, when the terminal receives the physical addressed to the C-RNTI Layer-level scheduling signaling is considered to be successful in two-step random access. In this way, two-step competitive random access can be implemented.
  • FIG. 1 is a schematic diagram of a four-step contention random access procedure of an LTE system in the related art
  • FIG. 2 is a schematic diagram of a three-step non-contention random access procedure of an LTE system in the related art
  • FIG. 3 is a flow chart of a two-step competitive random access method in some embodiments of the present disclosure.
  • FIG. 4 is a flow chart of a two-step contention random access method in some embodiments of the present disclosure.
  • FIG. 5 is a flowchart of a two-step contention random access method in some embodiments of the present disclosure
  • FIG. 6 is a flow chart of a two-step contention random access method in some embodiments of the present disclosure.
  • Figure 7 is a block diagram of a terminal in some embodiments of the present disclosure.
  • Figure 8 is a block diagram of a network side device in some embodiments of the present disclosure.
  • FIG. 3 a flow of a two-step contention random access method is shown, including steps 301 and 302.
  • Step 301 The terminal UE sends an Msg1 message.
  • the Msg1 message includes: a Random Access Preamble and a data part, and the C-RNTI (Cell Radio Network Temporary Identity) may be carried in the data part.
  • the data part further includes: SR (scheduling request), BSR (buffer status reporting) or data.
  • an optional implementation manner is: the terminal determines whether it meets the two-step random access triggering condition that uses the C-RNTI as the UE identifier, and if yes, the terminal sends an Msg1 message, where the Msg1 The UE identifier carried in the message is a C-RNTI.
  • the two-step random access triggering condition using the C-RNTI as the UE identifier includes:
  • the terminal is currently in the uplink synchronization state or does not need uplink synchronization, and the terminal has uplink data to be sent, but no uplink resources; or
  • the terminal is currently in the uplink synchronization state or does not need uplink synchronization, and the terminal switches.
  • Step 302 If the UE identifier carried in the Msg1 message is a C-RNTI, and the terminal receives the physical layer scheduling signaling for the C-RNTI addressing, it is determined that the two-step random access of the terminal is successful.
  • the method further includes:
  • the terminal Receiving, by the terminal, the Msg2 message before the Msg2 message receiving window or the Msg2 message receiving timer expires, if the terminal successfully receives the Msg2 message, the terminal stops receiving the Msg2 message, where the Msg2 message is by the network.
  • the method further includes:
  • the terminal listens before the Msg2 message receiving window or the Msg2 message receiving timer expires:
  • the physical layer scheduling signaling addressed by the C-RNTI carried in the Msg 1 message is utilized. Further, the search space corresponding to the physical layer scheduling signaling is a UE-specific search space.
  • the method further includes:
  • the terminal listens before the Msg2 message receiving window or the Msg2 message receiving timer expires:
  • Physical layer scheduling signaling addressed by T-CRNTI. Further, the search space corresponding to the physical layer scheduling signaling is a common search space.
  • the two-step contention random access if the UE identifier carried in the Msg1 message is a C-RNTI, when the terminal receives the physical layer scheduling signaling addressed to the C-RNTI, the two steps are considered. Random access is successful, and two-step competitive random access can be achieved by this method.
  • FIG. 4 a flow of a two-step contention random access method is shown, including steps 401 to 403.
  • Step 401 The network side device receives the Msg1 message sent by the terminal.
  • the network side device may be a base station, and is of course not limited thereto.
  • the Msg1 message includes: a Random Access Preamble and a data part, where the C-RNTI may be carried in the data part.
  • the data portion further includes: SR, BSR or data.
  • Step 402 If the network side device successfully receives the Msg1, and the UE identifier carried in the Msg1 message is the cell radio network temporary identifier C-RNTI, the network side device determines that the contention is successful.
  • Step 403 The network side device sends, to the terminal, a physical layer scheduling signaling scheduling Msg2 transmission addressed to the C-RNTI.
  • the method further includes: if the network side device can only receive the Random Acess Preamble in the Msg1, and the data part is not successfully received, the network side device sends the temporary C-RNTI for the terminal to the terminal.
  • the physical layer scheduling signaling of the address schedules Msg2 transmission.
  • the physical layer scheduling signaling addressed for the C-RNTI or addressed for the temporary C-RNTI needs to be sent before the Msg2 message receiving window or the Msg2 message receiving timer expires.
  • the two-step contention random access if the UE identifier carried in the Msg1 message is a C-RNTI, when the terminal receives the physical layer scheduling signaling addressed to the C-RNTI, the two steps are considered. Random access is successful, and two-step competitive random access can be achieved by this method.
  • FIG. 5 a flow of two-step competitive random access success is shown, including steps 501 to 503.
  • Step 501 The terminal sends an Msg1 message.
  • the terminal with the C-RNTI determines whether the two-step competitive random access trigger condition is met, and if so, triggers the two-step competitive random access.
  • the two-step random access triggering condition using the C-RNTI as the UE ID includes that the terminal is currently in the uplink synchronization state or does not need uplink synchronization (for example, the cell coverage is particularly small, less than one TA adjustment step), and:
  • the terminal has uplink data to be sent, but there is no uplink resource; or
  • the terminal has a switchover.
  • the Msg 1 message includes two parts: a Random Access Preamble and a data part, and the C-RNTI is carried in the data part.
  • the data part may further include: SR/BSR, or data.
  • Step 502 The base station processes the Msg1 message to generate an Msg2 message.
  • the arbitration is successful, and the C-RNTI addressed physical layer scheduling signaling is sent to the terminal.
  • the C-RNTI is the C-RNTI included in the data part of the Msg1 message.
  • the Msg2 message is sent before the timer corresponding to the Msg2 message or the timer corresponding to the Msg2 message expires.
  • Step 503 The terminal processes the Msg2 message.
  • the terminal receives the Msg2 message only before the Msg2 message receiving window or the Msg2 message receiving timer expires. Once the Msg2 message is successfully received, the reception of the Msg2 message is stopped.
  • the terminal needs to monitor before the Msg2 message receiving window or the Msg2 message receiving timer expires:
  • the physical layer scheduling signaling addressed by the C-RNTI carried in the Msg1 message is used to determine whether the competition is resolved.
  • the search space corresponding to the physical layer scheduling signaling is a UE-specific search space (USS, UE-specific Search Space); or
  • Temporary C-RNTI addressed physical layer scheduling signaling used for two-step competitive random access failure and then backed off to four-step competitive random access.
  • the search space corresponding to the physical layer scheduling signaling is a common search space (CSS, Common Search Space).
  • the terminal receives the physical layer scheduling signaling addressed by the C-RNTI before the Msg2 message receiving window or the Msg2 message receiving timer expires, and the terminal determines that the contention resolution is successful.
  • FIG. 6 a flow of two-step contention random access failure is shown, including steps 601 to 603.
  • Step 601 The terminal sends an Msg1 message.
  • the terminal with the C-RNTI determines whether the two-step competitive random access trigger condition is met, and if so, triggers the two-step competitive random access.
  • the two-step random access triggering condition using the C-RNTI as the UE ID includes: the terminal is currently in the uplink synchronization state or does not need uplink synchronization, for example, the cell coverage is particularly small, less than one TA adjustment step, and:
  • the terminal has uplink data to be sent, but there is no uplink resource; or
  • the terminal has a switchover.
  • Msg 1 consists of two parts: the Random Access Preamble and the data part.
  • the C-RNTI is carried in the data part.
  • the data part may also include: SR/BSR, or data.
  • Step 602 The base station processes the Msg1 message to generate an Msg2 message.
  • the base station If the base station only successfully receives the random access preamble and fails to receive the data part, it backs up to the four-step contention random access, and generates a RAR MAC PDU based on the temporary C-RNTI addressing.
  • the Msg2 message is sent before the timer corresponding to the Msg 2 message or the timer corresponding to the Msg2 message times out.
  • the base station randomly accesses the preamble and the data part without receiving successfully, no processing is performed, and no content is returned to the terminal.
  • Step 603 The terminal processes the Msg2 message.
  • the terminal receives the Msg2 message only before the Msg2 message receiving window or the Msg2 message receiving timer expires. Once the Msg2 message is successfully received, the reception of the Msg2 message is stopped.
  • the terminal needs to listen before the Msg2 message receiving window or the Msg2 message receiving timer expires:
  • the physical layer scheduling signaling addressed by the C-RNTI carried in the Msg 1 is used to determine whether the competition is resolved.
  • the search space corresponding to the physical layer scheduling signaling is a UE-specific search space (USS, UE-specific Search Space); or
  • Temporary C-RNTI addressed physical layer scheduling signaling used for two-step competitive random access failure and then backed off to four-step competitive random access.
  • the search space corresponding to the physical layer scheduling signaling is a common search space (CSS, Common Search Space).
  • the terminal directly determines that the random access fails, and performs a subsequent two-step or four-step random access attempt;
  • the terminal receives the temporary C-RNTI addressed physical layer scheduling signaling before the Msg2 message receiving window or the Msg2 message receiving timer expires, the terminal receives the RAR MAC PDU according to the indication of the temporary C-RNTI, and enters the four-step random access. .
  • the Msg3 message of the four-step contention random access is transmitted using the UL grant indicated in the RAR MAC PDU.
  • the terminal 700 includes:
  • the first sending module 701 is configured to send an Msg1 message.
  • the first determining module 702 is configured to: if the UE identifier carried in the Msg1 message is a cell radio network temporary identifier C-RNTI, and the sending module receives the physical layer scheduling signaling addressed by the C-RNTI And determining that the two-step random access of the terminal is successful.
  • the first sending module 701 includes:
  • a determining unit configured to determine whether the terminal satisfies a two-step random access triggering condition that uses the C-RNTI as the UE identifier
  • a sending unit configured to send the Msg1 message if the terminal meets the two-step random access triggering condition that uses the C-RNTI as the UE identifier, where the UE identifier carried in the Msg1 message is a C-RNTI.
  • the two-step random access triggering condition using the C-RNTI as the UE identifier includes:
  • the terminal is currently in the uplink synchronization state or does not need uplink synchronization, and the terminal has uplink data to be sent, but no uplink resources; or
  • the terminal is currently in the uplink synchronization state or does not need uplink synchronization, and the terminal switches.
  • the Msg1 message includes: a Random Access Preamble and a data part, where the C-RNTI is carried in the data part.
  • the data part further includes: an SR, a BSR, or data.
  • the terminal further includes:
  • a first receiving module configured to receive the Msg2 message before the Msg2 message receiving window or the Msg2 message receiving timer expires, and stop receiving the Msg2 message if the Msg2 message is successfully received by the network The message generated by the side corresponding to the Msg1 message.
  • the terminal further includes:
  • the first monitoring module is configured to: before the Msg2 message receiving window or the Msg2 message receiving timer times out, listen to: use physical layer scheduling signaling addressed by the C-RNTI carried in the Msg 1 message.
  • the search space corresponding to the physical layer scheduling signaling is a UE-specific search space.
  • the terminal further includes:
  • the second monitoring module is configured to: before the Msg2 message receiving window or the Msg2 message receiving timer times out, listen to: the temporary cell radio network temporarily identifies the physical layer scheduling signaling addressed by the T-CRNTI.
  • the search space corresponding to the physical layer scheduling signaling is a common search space.
  • the two-step contention random access if the UE identifier carried in the Msg1 message is a C-RNTI, when the terminal receives the physical layer scheduling signaling addressed to the C-RNTI, the two steps are considered. Random access is successful, and two-step competitive random access can be achieved by this method.
  • the network side device 800 includes:
  • the second receiving module 801 is configured to receive an Msg1 message sent by the terminal.
  • the second judging module 802 is configured to determine that the contention is successful if the network side device successfully receives the Msg1, and the UE identifier carried in the Msg1 message is the cell radio network temporary identifier C-RNTI.
  • the second sending module 803 is configured to send, to the terminal, a physical layer scheduling signaling scheduling Msg2 transmission for the C-RNTI addressing.
  • the Msg1 message includes: a Random Access Preamble and a data part, where the C-RNTI is carried in the data part.
  • the data part further includes: an SR, a BSR, or data.
  • the network side device further includes:
  • the third sending module is configured to: if the network side device can only receive the Random Acess Preamble in the Msg1, and the data part is not successfully received, send the physical layer scheduling signaling scheduling Msg2 transmission for the temporary C-RNTI addressing to the terminal.
  • the physical layer scheduling signaling for the C-RNTI addressing or for the temporary C-RNTI addressing needs to be sent before the Msg2 message receiving window or the Msg2 message receiving timer times out.
  • the two-step contention random access if the UE identifier carried in the Msg1 message is a C-RNTI, when the terminal receives the physical layer scheduling signaling addressed to the C-RNTI, the two-step random access is considered successful.
  • the above method can achieve two-step competitive random access.
  • system and “network” are used interchangeably herein.
  • B corresponding to A means that B is associated with A, and B can be determined from A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • An integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a number of instructions for causing a computer device (which may be a personal computer, a server, or a network side device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

本公开提供了一种两步竞争随机接入方法和装置，该方法包括：终端UE发送Msg1消息；如果Msg1消息中携带的UE标识是小区无线网络临时标识C-RNTI，且终端接收到针对C-RNTI寻址的物理层调度信令时，判定终端的两步随机接入成功。对于两步竞争随机接入，如果Msg1消息中携带的UE标识是C-RNTI，那么当终端接收到针对该C-RNTI寻址的物理层调度信令，则认为两步随机接入成功，通过上述方式可以实现两步竞争随机接入。

Description

两步竞争随机接入方法和装置
相关申请的交叉引用
本申请主张在2017年1月5日在中国提交的中国专利申请号No.201710007274.7的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种两步竞争随机接入方法和装置。
背景技术
LTE(Long Term Evolution，长期演进)系统的随机接入分为竞争随机接入和非竞争随机接入两种。其过程分别如下。
竞争随机接入用于：终端初始接入；RRC连接重建；切换；非同步状态下RRC连接态时下行数据到达；RRC连接态时上行数据到达；RRC连接态时的定位。其过程如图1所示，主要分为四步：
Msg1：UE选择Random Access Preamble(随机接入前导码)和PRACH(Physical Random Access Channel，物理随机接入信道)资源并利用该PRACH资源向基站发送所选的Random Access Preamble。
Msg2：基站接收到preamble，计算定时提前量TA(Time Alignment)，并向UE发送随机接入响应，随机接入响应中包含该定时提前量信息和针对Msg3的UL grant(上行调度授权)，以及网络侧分配的临时C-RNTI(或者称为T-CRNTI)。承载Msg2调度消息的PDCCH(Physical Downlink Control Channel，物理下行控制信道)用RA-RNTI(随机接入无线网络临时标识)加扰，RA-RNTI在10ms窗内与发送Msg1的时频资源唯一对应；另外Msg2中还携带preamble ID，UE通过RA-RNTI和preamble ID确定该Msg2是与其发送的Msg1对应的。
Msg3：UE在Msg2指定的UL grant上发送上行传输，不同随机接入原因Msg3上行传输的内容不同，比如对于初始接入，Msg3传输的是RRC连接建立请求。
Msg4：竞争解决消息，UE根据Msg4可以判断随机接入是否成功。对于初始接入UE，竞争解决成功后临时C-RNTI自动转化为UE在该小区的唯一UE标识C-RNTI。
非竞争随机接入用于切换、下行数据到达、定位和获取上行定时。其过程如图2所示，主要分为三步：
Msg0：基站向UE分配用于非竞争随机接入的专用preamble以及随机接入使用的PRACH资源。
Msg1：UE根据Msg0的指示，在指定的PRACH资源上向基站发送指定的专用preamble。基站接收到Msg1后根据Msg1计算上行定时提前量TA。
Msg2：基站向UE发送随机接入响应，随机接入响应中包含定时提前量信息、后续上行传输资源分配UL grant，定时提前量用于UE后续上行传输的定时关系。
两步竞争随机接入是当前5G系统的随机接入的一个研究热点，目前主要的解决方案是通过Msg1携带UE标识，然后通过Msg2 RAR MAC PDU中携带UE标识，终端通过判决发送和接收到的UE标识是否相同判决随机接入是否成功。但是这只是一种方式，是否还有其他解决方式需要考虑。
发明内容
鉴于上述技术问题，本公开实施例提供一种两步竞争随机接入方法和装置，实现两步竞争随机接入。
依据本公开实施例的第一个方面，提供了一种两步竞争随机接入方法，所述方法包括：
终端UE发送Msg1消息；
如果所述Msg1消息中携带的UE标识是小区无线网络临时标识C-RNTI，且所述终端接收到针对所述C-RNTI寻址的物理层调度信令时，判定所述终端的两步随机接入成功。
可选地，所述终端发送Msg1消息，包括：
所述终端判断其是否满足使用C-RNTI作为UE标识的两步随机接入触发条件，若是，则所述终端发送Msg1消息，其中，所述Msg1消息中携带的 UE标识是C-RNTI。
可选地，使用C-RNTI作为UE标识的两步随机接入触发条件包括：
终端当前处于上行同步状态或者不需要上行同步，且终端有上行数据需要发送，但是没有上行资源；或者
终端当前处于上行同步状态或者不需要上行同步，且终端发生切换。
可选地，所述Msg1消息包含：随机接入前导码Random Access Preamble和数据部分，所述C-RNTI携带在所述数据部分。
可选地，所述数据部分还包括：调度请求SR、缓冲区状态上报BSR或数据。
可选地，所述方法还包括：
所述终端在Msg2消息接收窗口或者Msg2消息接收定时器超时之前接收所述Msg2消息，如果所述终端成功接收到所述Msg2消息，则所述终端停止Msg2消息的接收，其中所述Msg2消息是由网络侧生成的与Msg1消息对应的消息。
可选地，所述方法还包括：
在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，所述终端监听：
利用Msg 1消息中携带的C-RNTI寻址的物理层调度信令。
可选地，所述物理层调度信令对应的搜索空间为UE特定的搜索空间。
可选地，所述方法还包括：
在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，所述终端监听：
临时小区无线网络临时标识T-CRNTI寻址的物理层调度信令。
可选地，所述物理层调度信令对应的搜索空间为公共搜索空间。
依据本公开实施例的第二个方面，还提供了一种两步竞争随机接入方法，所述方法包括：
网络侧设备接收终端发送的Msg1消息；
如果网络侧设备成功接收到Msg1，且所述Msg1消息中携带的UE标识是小区无线网络临时标识C-RNTI，则所述网络侧设备判定竞争成功；
所述网络侧设备向所述终端发送针对所述C-RNTI寻址的物理层调度信令调度Msg2传输。
可选地，所述Msg1消息包含：Random Access Preamble和数据部分，所述C-RNTI携带在所述数据部分。
可选地，所述数据部分还包括：SR、BSR或数据。
可选地，所述方法还包括：
如果网络侧设备只能接收到Msg1中的Random Acess Preamble，数据部分未成功接收，则所述网络侧设备向终端发送针对T-CRNTI寻址的物理层调度信令调度Msg2传输。
可选地，所述针对所述C-RNTI寻址或者针对所述T-CRNTI寻址的物理层调度信令需要在Msg2消息接收窗口或者Msg2消息接收定时器超时之前发送。
依据本公开实施例的第三个方面，还提供了一种终端，所述终端包括：
第一发送模块，用于发送Msg1消息；
第一判定模块，用于如果所述Msg1消息中携带的UE标识是小区无线网络临时标识C-RNTI，且所述发送模块接收到针对所述C-RNTI寻址的物理层调度信令时，判定所述终端的两步随机接入成功。
可选地，所述第一发送模块，包括：
判断单元，用于判断终端是否满足使用C-RNTI作为UE标识的两步随机接入触发条件；
发送单元，用于若终端满足使用C-RNTI作为UE标识的两步随机接入触发条件则发送Msg1消息，其中，所述Msg1消息中携带的UE标识是C-RNTI。
可选地，使用C-RNTI作为UE标识的两步随机接入触发条件包括：
终端当前处于上行同步状态或者不需要上行同步，且终端有上行数据需要发送，但是没有上行资源；或者
终端当前处于上行同步状态或者不需要上行同步，且终端发生切换。
可选地，所述Msg1消息包含：Random Access Preamble和数据部分，所述C-RNTI携带在所述数据部分。
可选地，所述数据部分还包括：SR、BSR或数据。
可选地，所述终端还包括：
第一接收模块，用于在Msg2消息接收窗口或者Msg2消息接收定时器超时之前接收所述Msg2消息，如果成功接收到所述Msg2消息，则停止Msg2消息的接收，其中所述Msg2消息是由网络侧生成的与Msg1消息对应的消息。
可选地，所述终端还包括：
第一监听模块，用于在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，监听：利用Msg 1消息中携带的C-RNTI寻址的物理层调度信令。
可选地，所述物理层调度信令对应的搜索空间为UE特定的搜索空间。
可选地，所述终端还包括：
第二监听模块，用于在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，监听：临时小区无线网络临时标识T-CRNTI寻址的物理层调度信令。
可选地，所述物理层调度信令对应的搜索空间为公共搜索空间。
依据本公开实施例的第四个方面，还提供了一种网络侧设备，所述网络侧设备包括：
第二接收模块，用于接收终端发送的Msg1消息；
第二判断模块，用于如果网络侧设备成功接收到Msg1，且所述Msg1消息中携带的UE标识是小区无线网络临时标识C-RNTI，则判定竞争成功；
第二发送模块，用于向所述终端发送针对所述C-RNTI寻址的物理层调度信令调度Msg2传输。
可选地，所述Msg1消息包含：Random Access Preamble和数据部分，所述C-RNTI携带在所述数据部分。
可选地，所述数据部分还包括：SR、BSR或数据。
可选地，所述网络侧设备还包括：
第三发送模块，用于如果网络侧设备只能接收到Msg1中的Random Acess Preamble，数据部分未成功接收，则向终端发送针对T-CRNTI寻址的物理层调度信令调度Msg2传输。
可选地，所述针对所述C-RNTI寻址或者针对T-CRNTI寻址的物理层调度信令需要在Msg2消息接收窗口或者Msg2消息接收定时器超时之前发送。
依据本公开实施例的第五个方面，提供了一种终端，包括：存储器、处 理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如本公开第一方面所述的两步竞争随机接入方法。
依据本公开实施例的第六个方面，提供了一种终端，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如本公开第二方面所述的两步竞争随机接入方法。
依据本公开实施例的第七个方面，提供了一种计算机可读存储介质，其上存储有计算机程序，所述程序被处理器执行时，实现如本公开第一方面所述的两步竞争随机接入方法。
依据本公开实施例的第八个方面，提供了一种计算机可读存储介质，其上存储有计算机程序，所述程序被处理器执行时，实现如本公开第二方面所述的两步竞争随机接入方法。
本公开的任一上述技术方案具有如下优点或有益效果：对于两步竞争随机接入，如果Msg1消息中携带的UE标识是C-RNTI，那么当终端接收到针对该C-RNTI寻址的物理层调度信令，则认为两步随机接入成功，通过上述方式可以实现两步竞争随机接入。
附图说明
图1为相关技术中的LTE系统四步竞争随机接入过程的示意图；
图2为相关技术中的LTE系统三步非竞争随机接入过程的示意图；
图3为本公开的一些实施例中两步竞争随机接入方法的流程图；
图4为本公开的一些实施例中两步竞争随机接入方法的流程图；
图5为本公开的一些实施例中两步竞争随机接入方法的流程图；
图6为本公开的一些实施例中两步竞争随机接入方法的流程图；
图7为本公开的一些实施例中终端的框图；
图8为本公开的一些实施例中网络侧设备的框图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
参见图3，图中示出了一种两步竞争随机接入方法的流程，包括步骤301和302。
步骤301、终端UE发送Msg1消息。
可选地，Msg1消息包含：Random Access Preamble(随机接入前导码)和数据部分，所述C-RNTI(小区无线网络临时标识)可携带在数据部分。进一步地，数据部分还包括：SR(调度请求)、BSR(缓冲区状态上报)或数据。
在本实施例中，一种可选的实现方式：终端判断其是否满足使用C-RNTI作为UE标识的两步随机接入触发条件，若是，则所述终端发送Msg1消息，其中，所述Msg1消息中携带的UE标识是C-RNTI。
可选地，使用C-RNTI作为UE标识的两步随机接入触发条件包括：
终端当前处于上行同步状态或者不需要上行同步，且终端有上行数据需要发送，但是没有上行资源；或者
终端当前处于上行同步状态或者不需要上行同步，且终端发生切换。
步骤302、如果Msg1消息中携带的UE标识是C-RNTI，且终端接收到针对C-RNTI寻址的物理层调度信令时，判定终端的两步随机接入成功。
在本实施例中，可选地，方法还包括：
终端在Msg2消息接收窗口或者Msg2消息接收定时器超时之前接收所述Msg2消息，如果所述终端成功接收到所述Msg2消息，则所述终端停止Msg2消息的接收，其中所述Msg2消息是由网络侧生成的与Msg1消息对应的消息。
在本实施例中，可选地，方法还包括：
在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，终端监听：
利用Msg 1消息中携带的C-RNTI寻址的物理层调度信令。进一步地，物理层调度信令对应的搜索空间为UE特定的搜索空间。
在本实施例中，可选地，方法还包括：
在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，终端监听：
T-CRNTI寻址的物理层调度信令。进一步地，所述物理层调度信令对应的搜索空间为公共搜索空间。
在本实施例中，对于两步竞争随机接入，如果Msg1消息中携带的UE标识是C-RNTI，那么当终端接收到针对该C-RNTI寻址的物理层调度信令，则认为两步随机接入成功，通过该方法可以实现两步竞争随机接入。
参见图4，图中示出了一种两步竞争随机接入方法的流程，包括步骤401至403。
步骤401、网络侧设备接收终端发送的Msg1消息。
上述网络侧设备可以是基站，当然也并不限于此。
在本实施例中，可选地，Msg1消息包含：Random Access Preamble和数据部分，所述C-RNTI可以携带在所述数据部分。进一步地，数据部分还包括：SR、BSR或数据。
步骤402、如果网络侧设备成功接收到Msg1，且所述Msg1消息中携带的UE标识是小区无线网络临时标识C-RNTI，则所述网络侧设备判定竞争成功。
步骤403、网络侧设备向所述终端发送针对所述C-RNTI寻址的物理层调度信令调度Msg2传输。
在本实施例中，所述方法还包括：如果网络侧设备只能接收到Msg1中的Random Acess Preamble，数据部分未成功接收，则所述网络侧设备向终端发送针对所述临时C-RNTI寻址的物理层调度信令调度Msg2传输。
在本实施例中，针对所述C-RNTI寻址或者针对所述临时C-RNTI寻址的物理层调度信令需要在Msg2消息接收窗口或者Msg2消息接收定时器超时之前发送。
在本实施例中，对于两步竞争随机接入，如果Msg1消息中携带的UE标识是C-RNTI，那么当终端接收到针对该C-RNTI寻址的物理层调度信令，则认为两步随机接入成功，通过该方法可以实现两步竞争随机接入。
参见图5，图中示出了两步竞争随机接入成功的流程，包括步骤501至503。
步骤501：终端发送Msg1消息；
具有C-RNTI的终端判断是否满足两步竞争随机接入触发条件，如果满足 则触发两步竞争随机接入。
使用C-RNTI作为UE ID的两步随机接入触发条件包括：终端当前处于上行同步状态或者不需要上行同步(比如小区覆盖范围特别小，小于一个TA调整步长)，且：
终端有上行数据需要发送，但是没有上行资源；或者
终端发生切换。
可选地，Msg 1消息包含两部分：Random Access Preamble和数据部分，C-RNTI携带在数据部分，此外，数据部分还可以包括：SR/BSR，或者数据。
步骤502：基站对Msg1消息处理，生成Msg2消息。
如果基站成功接收了Msg1消息，包括随机接入前导码和数据部分，则判决竞争成功，向终端下发C-RNTI寻址的物理层调度信令。C-RNTI为Msg1消息中数据部分包含的C-RNTI。
需要说明的是，Msg2消息要在Msg2消息对应的窗口或者Msg2消息对应的定时器超时之前发送。
步骤503：终端处理Msg2消息。
在本实施例中，终端只在Msg2消息接收窗口或者Msg2消息接收定时器超时之前接收Msg2消息。一旦成功接收到Msg2消息，则停止Msg2消息的接收。
在本实施例中，在Msg2消息接收窗口或者Msg2消息接收定时器超时前，终端需要监听：
利用Msg1消息中携带的C-RNTI寻址的物理层调度信令，用于判决竞争是否解决。该物理层调度信令对应的搜索空间为UE特定的搜所空间(USS，UE-specific Search Space)；或者
临时C-RNTI寻址的物理层调度信令，用于两步竞争随机接入失败后回退到四步竞争随机接入。该物理层调度信令对应的搜索空间为公共搜索空间(CSS,Common Search Space)
在本实施例中，如果竞争解决成功，终端在Msg2消息接收窗口或者Msg2消息接收定时器超时前会接收到C-RNTI寻址的物理层调度信令，则终端判断竞争解决成功。
参见图6，图中示出了两步竞争随机接入失败的流程，包括步骤601至603。
步骤601：终端发送Msg1消息；
具有C-RNTI的终端判断是否满足两步竞争随机接入触发条件，如果满足则触发两步竞争随机接入。
使用C-RNTI作为UE ID的两步随机接入触发条件包括：终端当前处于上行同步状态或者不需要上行同步，比如所述小区覆盖范围特别小，小于一个TA调整步长，且：
终端有上行数据需要发送，但是没有上行资源；或者
终端发生切换。
Msg 1包含两部分：Random Access Preamble和数据部分，C-RNTI携带在数据部分，此外，数据部分还可以包括：SR/BSR，或者数据。
步骤602：基站对Msg1消息处理，生成Msg2消息。
如果基站只成功接收到随机接入前导码，未成功接收到到数据部分，则回退到四步竞争随机接入，生成基于临时C-RNTI寻址的RAR MAC PDU。Msg2消息要在Msg 2消息对应的窗口或者Msg2消息对应的定时器超时之前发送。
如果基站随机接入前导码和数据部分都没接收成功，则不做任何处理，也不向终端回复任何内容。
步骤603：终端处理Msg2消息。
终端只在Msg2消息接收窗口或者Msg2消息接收定时器超时之前接收Msg2消息。一旦成功接收到Msg2消息，则停止Msg2消息的接收。
在Msg2消息接收窗口或者Msg2消息接收定时器超时前，终端需要监听：
利用Msg 1中携带的C-RNTI寻址的物理层调度信令，用于判决竞争是否解决。该物理层调度信令对应的搜索空间为UE特定的搜所空间(USS，UE-specific Search Space)；或者
临时C-RNTI寻址的物理层调度信令，用于两步竞争随机接入失败后回退到四步竞争随机接入。该物理层调度信令对应的搜索空间为公共搜索空间(CSS,Common Search Space)。
在本实施例中，如果终端在Msg2消息接收窗口或者Msg2消息接收定时器超时前什么都没收到，则直接判决随机接入失败，进行后续两步或者四步随机接入尝试；
如果终端在Msg2消息接收窗口或者Msg2消息接收定时器超时前收到了临时C-RNTI寻址的物理层调度信令，则根据临时C-RNTI的指示接收RAR MAC PDU，并进入四步随机接入。利用RAR MAC PDU中指示的UL grant，发送四步竞争随机接入的Msg3消息。
参见图7，图中示出了一种终端，该终端700包括：
第一发送模块701，用于发送Msg1消息；
第一判定模块702，用于如果所述Msg1消息中携带的UE标识是小区无线网络临时标识C-RNTI，且所述发送模块接收到针对所述C-RNTI寻址的物理层调度信令时，判定所述终端的两步随机接入成功。
在本实施例中，可选地，所述第一发送模块701，包括：
判断单元，用于判断终端是否满足使用C-RNTI作为UE标识的两步随机接入触发条件；
发送单元，用于若终端满足使用C-RNTI作为UE标识的两步随机接入触发条件则发送Msg1消息，其中，所述Msg1消息中携带的UE标识是C-RNTI。
在本实施例中，可选地，使用C-RNTI作为UE标识的两步随机接入触发条件包括：
终端当前处于上行同步状态或者不需要上行同步，且终端有上行数据需要发送，但是没有上行资源；或者
终端当前处于上行同步状态或者不需要上行同步，且终端发生切换。
在本实施例中，可选地，所述Msg1消息包含：Random Access Preamble和数据部分，所述C-RNTI携带在所述数据部分。
在本实施例中，可选地，所述数据部分还包括：SR、BSR或数据。
在本实施例中，可选地，所述终端还包括：
第一接收模块，用于在Msg2消息接收窗口或者Msg2消息接收定时器超时之前接收所述Msg2消息，如果成功接收到所述Msg2消息，则停止Msg2消息的接收，其中所述Msg2消息是由网络侧生成的与Msg1消息对应的消息。
在本实施例中，可选地，所述终端还包括：
第一监听模块，用于在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，监听：利用Msg 1消息中携带的C-RNTI寻址的物理层调度信令。
在本实施例中，可选地，所述物理层调度信令对应的搜索空间为UE特定的搜索空间。
在本实施例中，可选地，所述终端还包括：
第二监听模块，用于在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，监听：临时小区无线网络临时标识T-CRNTI寻址的物理层调度信令。
在本实施例中，可选地，所述物理层调度信令对应的搜索空间为公共搜索空间。
在本实施例中，对于两步竞争随机接入，如果Msg1消息中携带的UE标识是C-RNTI，那么当终端接收到针对该C-RNTI寻址的物理层调度信令，则认为两步随机接入成功，通过该方法可以实现两步竞争随机接入。
参见图8，图中示出了一种网络侧设备，该网络侧设备800包括：
第二接收模块801，用于接收终端发送的Msg1消息；
第二判断模块802，用于如果网络侧设备成功接收到Msg1，且所述Msg1消息中携带的UE标识是小区无线网络临时标识C-RNTI，则判定竞争成功；
第二发送模块803，用于向所述终端发送针对所述C-RNTI寻址的物理层调度信令调度Msg2传输。
在本实施例，可选地，所述Msg1消息包含：Random Access Preamble和数据部分，所述C-RNTI携带在所述数据部分。
在本实施例，可选地，所述数据部分还包括：SR、BSR或数据。
在本实施例，可选地，所述网络侧设备还包括：
第三发送模块，用于如果网络侧设备只能接收到Msg1中的Random Acess Preamble，数据部分未成功接收，则向终端发送针对临时C-RNTI寻址的物理层调度信令调度Msg2传输。
在本实施例，可选地，针对所述C-RNTI寻址或者针对临时C-RNTI寻址的物理层调度信令需要在Msg2消息接收窗口或者Msg2消息接收定时器超时之前发送。
对于两步竞争随机接入，如果Msg1消息中携带的UE标识是C-RNTI，那么当终端接收到针对该C-RNTI寻址的物理层调度信令，则认为两步随机接入成功，通过上述方式可以实现两步竞争随机接入。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本公开的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本公开的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本公开实施例的实施过程构成任何限定。
另外，本文中术语“系统”和“网络”在本文中常可互换使用。
应理解，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。
在本申请所提供的实施例中，应理解，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
在本申请所提供的几个实施例中，应该理解到，所揭露方法和装置，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系统，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。
另外，在本公开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包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元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，或者网络侧设备等)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述的是本公开的可选的实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以做出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。

Claims (34)

  1. 一种两步竞争随机接入方法，包括：
    终端UE发送Msg1消息；
    如果所述Msg1消息中携带的UE标识是小区无线网络临时标识C-RNTI，且所述终端接收到针对所述C-RNTI寻址的物理层调度信令时，判定所述终端的两步随机接入成功。
  2. 根据权利要求1所述的方法，其中，所述终端发送Msg1消息，包括：
    所述终端判断其是否满足使用C-RNTI作为UE标识的两步随机接入触发条件，若是，则所述终端发送Msg1消息，其中，所述Msg1消息中携带的UE标识是C-RNTI。
  3. 根据权利要求2所述的方法，其中，使用C-RNTI作为UE标识的两步随机接入触发条件包括：
    终端当前处于上行同步状态或者不需要上行同步，且终端有上行数据需要发送，但是没有上行资源；或者
    终端当前处于上行同步状态或者不需要上行同步，且终端发生切换。
  4. 根据权利要求1所述的方法，其中，所述Msg1消息包含：随机接入前导码Random Access Preamble和数据部分，所述C-RNTI携带在所述数据部分。
  5. 根据权利要求4所述的方法，其中，所述数据部分还包括：调度请求SR、缓冲区状态上报BSR或数据。
  6. 根据权利要求1所述的方法，其中，所述方法还包括：
    所述终端在Msg2消息接收窗口或者Msg2消息接收定时器超时之前接收所述Msg2消息，如果所述终端成功接收到所述Msg2消息，则所述终端停止Msg2消息的接收，其中所述Msg2消息是由网络侧生成的与Msg1消息对应的消息。
  7. 根据权利要求1所述的方法，其中，所述方法还包括：
    在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，所述终端监听：
    利用Msg1消息中携带的C-RNTI寻址的物理层调度信令。
  8. 根据权利要求7所述的方法，其中，所述物理层调度信令对应的搜索空间为UE特定的搜索空间。
  9. 根据权利要求1或7所述的方法，其中，所述方法还包括：
    在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，所述终端监听：
    临时小区无线网络临时标识T-CRNTI寻址的物理层调度信令。
  10. 根据权利要求9所述的方法，其中，所述物理层调度信令对应的搜索空间为公共搜索空间。
  11. 一种两步竞争随机接入方法，包括：
    网络侧设备接收终端发送的Msg1消息；
    如果网络侧设备成功接收到Msg1，且所述Msg1消息中携带的UE标识是小区无线网络临时标识C-RNTI，则所述网络侧设备判定竞争成功；
    所述网络侧设备向所述终端发送针对所述C-RNTI寻址的物理层调度信令调度Msg2传输。
  12. 根据权利要求11所述的方法，其中，所述Msg1消息包含：Random Access Preamble和数据部分，所述C-RNTI携带在所述数据部分。
  13. 根据权利要求12所述的方法，其中，所述数据部分还包括：SR、BSR或数据。
  14. 根据权利要求11所述的方法，还包括：
    如果网络侧设备只能接收到Msg1中的Random Acess Preamble，数据部分未成功接收，则所述网络侧设备向终端发送针对T-CRNTI寻址的物理层调度信令调度Msg2传输。
  15. 根据权利要求11或14所述的方法，其中，
    所述针对所述C-RNTI寻址或者针对所述T-CRNTI寻址的物理层调度信令需要在Msg2消息接收窗口或者Msg2消息接收定时器超时之前发送。
  16. 一种终端，包括：
    第一发送模块，用于发送Msg1消息；
    第一判定模块，用于如果所述Msg1消息中携带的UE标识是小区无线网 络临时标识C-RNTI，且所述发送模块接收到针对所述C-RNTI寻址的物理层调度信令时，判定所述终端的两步随机接入成功。
  17. 根据权利要求16所述的终端，其中，所述第一发送模块，包括：
    判断单元，用于判断终端是否满足使用C-RNTI作为UE标识的两步随机接入触发条件；
    发送单元，用于若终端满足使用C-RNTI作为UE标识的两步随机接入触发条件则发送Msg1消息，其中，所述Msg1消息中携带的UE标识是C-RNTI。
  18. 根据权利要求17所述的终端，其中，使用C-RNTI作为UE标识的两步随机接入触发条件包括：
    终端当前处于上行同步状态或者不需要上行同步，且终端有上行数据需要发送，但是没有上行资源；或者
    终端当前处于上行同步状态或者不需要上行同步，且终端发生切换。
  19. 根据权利要求16所述的终端，其中，所述Msg1消息包含：Random Access Preamble和数据部分，所述C-RNTI携带在所述数据部分。
  20. 根据权利要求19所述的终端，其中，所述数据部分还包括：SR、BSR或数据。
  21. 根据权利要求16所述的终端，还包括：
    第一接收模块，用于在Msg2消息接收窗口或者Msg2消息接收定时器超时之前接收所述Msg2消息，如果成功接收到所述Msg2消息，则停止Msg2消息的接收，其中所述Msg2消息是由网络侧生成的与Msg1消息对应的消息。
  22. 根据权利要求16所述的终端，还包括：
    第一监听模块，用于在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，监听：利用Msg1消息中携带的C-RNTI寻址的物理层调度信令。
  23. 根据权利要求22所述的终端，其特征在于，所述物理层调度信令对应的搜索空间为UE特定的搜索空间。
  24. 根据权利要求16或22所述的终端，还包括：
    第二监听模块，用于在Msg2消息接收窗口或者Msg2消息接收定时器超时之前，监听：临时小区无线网络临时标识T-CRNTI寻址的物理层调度信令。
  25. 根据权利要求24所述的终端，其中，所述物理层调度信令对应的搜 索空间为公共搜索空间。
  26. 一种网络侧设备，包括：
    第二接收模块，用于接收终端发送的Msg1消息；
    第二判断模块，用于如果网络侧设备成功接收到Msg1，且所述Msg1消息中携带的UE标识是小区无线网络临时标识C-RNTI，则判定竞争成功；
    第二发送模块，用于向所述终端发送针对所述C-RNTI寻址的物理层调度信令调度Msg2传输。
  27. 根据权利要求26所述的网络侧设备，其中，所述Msg1消息包含：Random Access Preamble和数据部分，所述C-RNTI携带在所述数据部分。
  28. 根据权利要求27所述的网络侧设备，其中，所述数据部分还包括：SR、BSR或数据。
  29. 根据权利要求26所述的网络侧设备，还包括：
    第三发送模块，用于如果网络侧设备只能接收到Msg1中的Random Acess Preamble，数据部分未成功接收，则向终端发送针对T-CRNTI寻址的物理层调度信令调度Msg2传输。
  30. 根据权利要求26或29所述的网络侧设备，其中，所述针对所述C-RNTI寻址或者针对T-CRNTI寻址的物理层调度信令需要在Msg2消息接收窗口或者Msg2消息接收定时器超时之前发送。
  31. 一种终端，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如权利要求1至10中任一项所述的方法。
  32. 一种网络侧设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如权利要求11至15中任一项所述的方法。
  33. 一种计算机可读存储介质，其上存储有计算机程序，所述程序被处理器执行时，实现如权利要求1至10中任一项所述的方法。
  34. 一种计算机可读存储介质，其上存储有计算机程序，所述程序被处理器执行时，实现如权利要求11至15中任一项所述的方法。
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020087379A1 (zh) * 2018-10-31 2020-05-07 北京小米移动软件有限公司 传输随机接入指示信息的方法及装置
WO2020156458A1 (en) * 2019-01-30 2020-08-06 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for random access
WO2021064150A1 (en) * 2019-10-03 2021-04-08 Telefonaktiebolaget Lm Ericsson (Publ) Efficient buffer status reporting over 2-step ra
EP3847863A4 (en) * 2018-09-28 2021-11-24 Samsung Electronics Co., Ltd. RANDOM ACCESS METHOD AND APPARATUS IN A WIRELESS COMMUNICATION SYSTEM
CN113906815A (zh) * 2019-05-02 2022-01-07 上海诺基亚贝尔股份有限公司 随机接入过程中的竞争解决
EP3927095A4 (en) * 2019-03-22 2022-03-09 Guangdong Oppo Mobile Telecommunications Corp., Ltd. RANDOM ACCESS METHOD AND DEVICE, USER DEVICE AND NETWORK DEVICE
JP2022520269A (ja) * 2019-02-15 2022-03-29 華為技術有限公司 ランダムアクセス方法および装置
EP3975652A4 (en) * 2019-08-15 2022-06-22 Guangdong Oppo Mobile Telecommunications Corp., Ltd. 2-STEP DIRECT ACCESS METHOD AND DEVICE, TERMINAL AND STORAGE MEDIA

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110769517B (zh) * 2018-07-26 2022-02-01 维沃移动通信有限公司 一种随机接入方法及相关设备
CN110769516B (zh) * 2018-07-26 2022-01-28 维沃移动通信有限公司 一种随机接入方法及相关设备
TW202008824A (zh) * 2018-07-27 2020-02-16 大陸商Ｏｐｐｏ廣東移動通信有限公司 一種無線通信方法和設備
WO2020020348A1 (zh) * 2018-07-27 2020-01-30 Oppo广东移动通信有限公司 一种信息传输方法及装置、终端设备、网络设备
EP3817500B1 (en) * 2018-08-01 2023-08-16 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Random access method and device, and computer storage medium
CN110831227B (zh) * 2018-08-09 2022-02-11 维沃移动通信有限公司 一种随机接入方法、网络设备及终端
CN110831230B (zh) 2018-08-10 2021-10-01 华为技术有限公司 随机接入方法、装置、设备及存储介质
JP7413349B2 (ja) * 2018-08-31 2024-01-15 富士通株式会社 ランダムアクセス方法、データ受信方法及びその装置、通信システム
CN110913498B (zh) * 2018-09-18 2021-07-06 维沃移动通信有限公司 一种随机接入方法及终端
CN110913499B (zh) * 2018-09-18 2022-07-15 维沃移动通信有限公司 一种随机接入方法、终端及计算机可读存储介质
CN110933766B (zh) * 2018-09-19 2022-02-08 维沃移动通信有限公司 随机接入信息的获取、发送方法及网络节点
EP3855794A4 (en) * 2018-09-21 2021-11-03 Guangdong Oppo Mobile Telecommunications Corp., Ltd. DIRECT ACCESS CONTROL PROCEDURES AND SETUP, NETWORK DEVICE AND TERMINAL DEVICE
WO2020065398A1 (en) * 2018-09-26 2020-04-02 Lenovo (Singapore) Pte . Ltd Performing a two-step random access channel procedure
US11497060B2 (en) * 2018-10-01 2022-11-08 Mediatek Singapore Pte. Ltd. Multiplexing, addressing and HARQ for MsgB in two-step RACH in mobile communications
US11632801B2 (en) * 2018-10-03 2023-04-18 Qualcomm Incorporated Message 1 of a two-step random access procedure
CN111050412B (zh) * 2018-10-12 2022-11-25 华为技术有限公司 一种随机接入方法及其装置
CN111083798B (zh) * 2018-10-22 2022-02-08 普天信息技术有限公司 一种基于竞争的随机接入方法和装置
CN112913317B (zh) * 2018-10-26 2024-03-26 日本电气株式会社 无线电终端、无线电接入网络节点及其方法
EP3876590A4 (en) * 2018-10-31 2022-06-15 Beijing Xiaomi Mobile Software Co., Ltd. METHOD AND DEVICE FOR TRANSMITTING RANDOM ACCESS INDICATION INFORMATION
WO2020087476A1 (zh) * 2018-11-01 2020-05-07 Oppo广东移动通信有限公司 传输系统信息的方法和设备
WO2020107429A1 (zh) * 2018-11-30 2020-06-04 Oppo广东移动通信有限公司 随机接入的方法和设备
CN111405675B (zh) * 2019-01-02 2022-06-03 中国移动通信有限公司研究院 随机接入方法、终端及网络设备
CN110535602B (zh) * 2019-01-18 2022-12-20 中兴通讯股份有限公司 一种信息传输方法、装置、通信设备和通信节点
CN111263462B (zh) * 2019-01-30 2022-02-22 维沃移动通信有限公司 一种随机接入方法及装置
WO2020154992A1 (en) * 2019-01-30 2020-08-06 Qualcomm Incorporated Random access procedure based on two-step random access channel procedure and four-step random access channel procedure
CN111263464B (zh) * 2019-01-30 2021-12-28 维沃移动通信有限公司 随机接入方法、设备及介质
EP3920641A4 (en) * 2019-02-01 2022-09-07 Ntt Docomo, Inc. USER DEVICE AND BASE STATION DEVICE
CN111526601B (zh) * 2019-02-03 2022-06-21 上海朗帛通信技术有限公司 一种用于无线通信的通信节点中的方法和装置
CN111586883B (zh) * 2019-02-15 2022-06-14 华为技术有限公司 一种随机接入方法和装置
WO2020164141A1 (zh) * 2019-02-15 2020-08-20 富士通株式会社 随机接入响应的发送和接收方法、装置和系统
CN109983829B (zh) * 2019-02-22 2022-08-05 北京小米移动软件有限公司 随机接入过程的消息发送方法、装置、设备及系统
CN111972032B (zh) * 2019-02-25 2022-03-15 Oppo广东移动通信有限公司 随机接入的方法和设备
EP3920643A4 (en) 2019-03-07 2022-02-16 Guangdong Oppo Mobile Telecommunications Corp., Ltd. POWER CONTROL METHODS, DEVICES FOR DIRECT ACCESS METHODS AND TERMINAL
CN111885690A (zh) * 2019-03-07 2020-11-03 Oppo广东移动通信有限公司 功率控制方法及随机接入方法、装置、终端
CN112806068B (zh) * 2019-03-15 2023-04-28 Oppo广东移动通信有限公司 一种资源管理方法、设备及存储介质
KR20210139282A (ko) * 2019-03-19 2021-11-22 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 2 단계의 랜덤 액세스를 위한 방법, 단말 디바이스 및 네트워크 디바이스
CN113905453B (zh) * 2019-03-19 2024-03-05 Oppo广东移动通信有限公司 随机接入的方法和设备
CN111726870A (zh) 2019-03-22 2020-09-29 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置
CN113678562B (zh) * 2019-03-25 2023-12-05 北京欧珀通信有限公司 通信方法、终端设备和网络设备
CN113661770A (zh) * 2019-03-28 2021-11-16 瑞典爱立信有限公司 用于确定在两步随机接入过程中的无线电网络临时标识的方法和装置
CN112806087B (zh) * 2019-03-29 2023-03-24 Oppo广东移动通信有限公司 一种随机接入方法、电子设备及存储介质
KR20210151106A (ko) 2019-04-24 2021-12-13 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 랜덤 액세스 방법 및 기기, 사용자 장비 및 네트워크 장치
EP3962222A1 (en) * 2019-04-26 2022-03-02 Ntt Docomo, Inc. User device and base station device
CN111867126A (zh) * 2019-04-30 2020-10-30 华为技术有限公司 随机接入方法和装置
CN111901078B (zh) * 2019-05-05 2023-01-03 中国移动通信有限公司研究院 数据处理方法、装置、相关设备及存储介质
WO2021003661A1 (en) * 2019-07-09 2021-01-14 Zte Corporation Systems and methods for performing random access procedure
EP4007428B1 (en) * 2019-07-31 2023-11-01 Beijing Xiaomi Mobile Software Co., Ltd. Random access method, device, and medium
US20220287080A1 (en) * 2019-08-05 2022-09-08 Beijing Xiaomi Mobile Software Co., Ltd. Method and device for configuring search space, method and device for random accessing, and storage medium
CN112399626A (zh) * 2019-08-13 2021-02-23 苹果公司 2步随机接入中的下行链路无线电资源控制消息传输
EP3780870A1 (en) 2019-08-13 2021-02-17 Apple Inc. Downlink radio resource control message transmission in 2-step random access
WO2022057817A1 (zh) * 2020-09-21 2022-03-24 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置
CN114258146A (zh) * 2020-09-23 2022-03-29 北京紫光展锐通信技术有限公司 单播物理层标识指示、确定方法及装置、存储介质、车载设备
CN114364055B (zh) * 2021-12-31 2023-09-01 京信网络系统股份有限公司 基于竞争的随机接入方法、装置、基站及存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102104961A (zh) * 2009-12-22 2011-06-22 电信科学技术研究院 竞争资源的使用方法、系统及装置
CN103298134A (zh) * 2012-02-22 2013-09-11 华为技术有限公司 多终端竞争冲突解决方法，终端和基站
CN103826318A (zh) * 2014-01-26 2014-05-28 北京邮电大学 一种宏基站与微基站联合的随机接入方法和设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101112145B1 (ko) * 2007-02-09 2012-02-22 삼성전자주식회사 이동통신 시스템의 랜덤 액세스 프로시져에서 경쟁의 감지 방법 및 장치
TWI364936B (en) * 2007-03-21 2012-05-21 Innovative Sonic Ltd Method and apparatus for handling random access procedure in a wireless communications system
CN105554895B (zh) * 2011-08-11 2019-09-13 华为技术有限公司 一种获取同步的处理方法以及设备
PT3761746T (pt) * 2012-11-02 2022-10-03 Huawei Tech Co Ltd Método, estação de base e equipamento de utilizador para determinação de perda de canal
EP3026831B1 (en) * 2013-07-26 2019-11-13 LG Electronics Inc. Method for transmitting signal for mtc and apparatus for same
CN104812075A (zh) * 2014-01-27 2015-07-29 中兴通讯股份有限公司 设备发现信号的发送方法、装置及系统
WO2015137632A1 (en) * 2014-03-11 2015-09-17 Lg Electronics Inc. Method for allocating temporary identifier to terminal in random access procedure in wireless communication system and apparatus tehrefor
CN106160978B (zh) * 2015-04-10 2021-05-07 夏普株式会社 物理下行控制信道的资源配置方法以及基站和用户设备
CN107852292B (zh) * 2015-08-12 2021-06-08 苹果公司 用于m-pdcch的非ue特定搜索空间的配置
CN106470468B (zh) * 2015-08-14 2020-08-07 电信科学技术研究院 一种随机接入响应的传输方法及装置
CN108206724B (zh) * 2016-12-16 2022-03-25 中兴通讯股份有限公司 一种数据传输方法及发射机、接收机、存储介质
US10531388B2 (en) * 2017-02-06 2020-01-07 Qualcomm Incorporated Data transmission in inactive state

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102104961A (zh) * 2009-12-22 2011-06-22 电信科学技术研究院 竞争资源的使用方法、系统及装置
CN103298134A (zh) * 2012-02-22 2013-09-11 华为技术有限公司 多终端竞争冲突解决方法，终端和基站
CN103826318A (zh) * 2014-01-26 2014-05-28 北京邮电大学 一种宏基站与微基站联合的随机接入方法和设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZTE MICROELECTRONICS: "On 2-step RACH procedure in NR", 3GPP TSG RAN WG1 MEETING #87, RL-1611274, 18 November 2016 (2016-11-18), Reno, USA, XP051189838, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_87/Docs/> *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3847863A4 (en) * 2018-09-28 2021-11-24 Samsung Electronics Co., Ltd. RANDOM ACCESS METHOD AND APPARATUS IN A WIRELESS COMMUNICATION SYSTEM
US11653387B2 (en) 2018-09-28 2023-05-16 Samsung Electronics Co., Ltd. Random access method and apparatus in wireless communication system
WO2020087379A1 (zh) * 2018-10-31 2020-05-07 北京小米移动软件有限公司 传输随机接入指示信息的方法及装置
US11968721B2 (en) 2018-10-31 2024-04-23 Beijing Xiaomi Mobile Software Co., Ltd. Method and apparatus for transmitting random access indication information
WO2020156458A1 (en) * 2019-01-30 2020-08-06 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for random access
JP2022520269A (ja) * 2019-02-15 2022-03-29 華為技術有限公司 ランダムアクセス方法および装置
JP7393431B2 (ja) 2019-02-15 2023-12-06 華為技術有限公司 ランダムアクセス方法および装置
EP3927095A4 (en) * 2019-03-22 2022-03-09 Guangdong Oppo Mobile Telecommunications Corp., Ltd. RANDOM ACCESS METHOD AND DEVICE, USER DEVICE AND NETWORK DEVICE
CN113906815A (zh) * 2019-05-02 2022-01-07 上海诺基亚贝尔股份有限公司 随机接入过程中的竞争解决
CN113906815B (zh) * 2019-05-02 2024-04-19 上海诺基亚贝尔股份有限公司 随机接入过程中的竞争解决
EP3975652A4 (en) * 2019-08-15 2022-06-22 Guangdong Oppo Mobile Telecommunications Corp., Ltd. 2-STEP DIRECT ACCESS METHOD AND DEVICE, TERMINAL AND STORAGE MEDIA
WO2021064150A1 (en) * 2019-10-03 2021-04-08 Telefonaktiebolaget Lm Ericsson (Publ) Efficient buffer status reporting over 2-step ra

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