WO2022032656A1 - Procédé d'accès aléatoire et station de base - Google Patents

Procédé d'accès aléatoire et station de base Download PDF

Info

Publication number
WO2022032656A1
WO2022032656A1 PCT/CN2020/109271 CN2020109271W WO2022032656A1 WO 2022032656 A1 WO2022032656 A1 WO 2022032656A1 CN 2020109271 W CN2020109271 W CN 2020109271W WO 2022032656 A1 WO2022032656 A1 WO 2022032656A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
msg3
base station
message
csi
Prior art date
Application number
PCT/CN2020/109271
Other languages
English (en)
Chinese (zh)
Inventor
涂靖
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2020/109271 priority Critical patent/WO2022032656A1/fr
Publication of WO2022032656A1 publication Critical patent/WO2022032656A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application is in the field of communication technologies, and in particular, relates to a random access method and a base station.
  • Random access is a basic and important process in the Long Term Evolution (LTE) system and the New Radio (NR) system. Its main purposes are as follows: 1. Establish uplink synchronization; 2. The terminal allocates a unique Cell Radio Network Temporary Identifier (C-RNTI for short), and requests the network to allocate uplink resources to the terminal. Therefore, random access is not only used for initial access, such as the initial access of non-standalone (NSA), but also for new cell access during handover and access after wireless link failure. Incoming, resuming uplink synchronization when there is uplink/downlink data transmission, and uplink shared channel (UL-SCH) resource request, etc.
  • LTE Long Term Evolution
  • NR New Radio
  • the base station Before the existing random access procedure, the base station usually configures the terminal with periodic Channel State Information Reference Signal (CSI-RS) measurement resources and corresponding periodic Channel State Indication (Channel State Information Reference Signal, referred to as CSI-RS) measurement resources for the terminal.
  • CSI-RS Channel State Information Reference Signal
  • State Information referred to as CSI
  • UCI Uplink Control Information
  • the feedback time slot (slot) of the periodic CSI feedback resource configured in advance may be the same as the sending time slot of the MSG3 message sent by the terminal during the random access process, due to the different processing capabilities of the terminal, some terminals may After obtaining the CSI measurement results, some terminals cannot obtain the CSI measurement results, which will cause the base station side to be unable to accurately know whether there is UCI associated with the channel transmission when the terminal side sends the MSG3 message. Therefore, the number of UCI bits on the base station side and the terminal side may be inconsistent, so that the demodulation of the MS3 message fails and the random access fails.
  • the technical problem to be solved by the embodiments of the present application is to provide a random access method and a base station, so as to solve the problem that the MSG3 message sent in the random access process of the terminal fails to demodulate, resulting in random access failure.
  • the embodiments of the present application provide a method for random access, which may include:
  • the base station Before receiving the first message MSG1 sent by the terminal, the base station disables the allocation of periodic channel state indication CSI feedback resources;
  • Receive the third message MSG3 sent by the terminal demodulate the MSG3 according to the number of bits in the MSG3 that does not include the uplink control information UCI, and complete the access of the terminal;
  • Periodic CSI feedback resources are allocated to the terminal.
  • the base station Before the RCAH process of the terminal, the base station closes the allocation of periodic CSI feedback resources, so that there is no UCI associated channel information in MSG3, so that the base station can demodulate MSG3 according to the number of bits in MSG3 excluding UCI, and complete the access of the terminal .
  • the demodulation efficiency and accuracy rate of MSG3 are improved, thereby improving the success rate of terminal access, ensuring the normal operation of services and normal data transmission, and providing users with a better service experience.
  • the MSG1 is a cell handover request or a secondary base station addition request.
  • the base station before receiving the first message MSG1 sent by the terminal, the base station disables the allocation of periodic channel state indication CSI feedback resources, including:
  • the base station disables the allocation of periodic CSI-RS measurement resources and the allocation of periodic CSI feedback resources before receiving the first message MSG1 sent by the terminal;
  • the base station Before receiving the first message MSG1 sent by the terminal, the base station allocates periodic or aperiodic CSI-RS measurement resources to the terminal, and allocates aperiodic CSI feedback resources to the terminal.
  • the base station does not allocate periodic CSI-RS measurement resources to the terminal before receiving the first message MSG1 sent by the terminal, then allocate the periodic CSI to the terminal.
  • periodic CSI-RS measurement resources also include:
  • Periodic channel state indication reference signal CSI-RS measurement resources are allocated to the terminal.
  • the CSI-RS measurement resource is used to measure the channel state between the terminal and the base station;
  • the CSI feedback resource is used for the terminal to feed back the measured CSI result to the base station.
  • the embodiments of the present application provide a method for random access, which may include:
  • the base station Before receiving the first message MSG1 sent by the terminal, the base station allocates periodic channel state indication reference signal CSI-RS measurement resources and periodic CSI feedback resources to the terminal;
  • Receive the third message MSG3 sent by the terminal demodulate the MSG3 according to the number of bits of the uplink control information UCI included in the MSG3 and according to the number of bits of the MSG3 that does not include the UCI, and complete the process of the terminal. access.
  • the correct demodulation of MSG3 can be ensured, which is beneficial to improve the success rate of terminal access, and can provide users with better service experience.
  • demodulating the MSG3 according to the number of bits of the uplink control information UCI included in the MSG3 and according to the number of bits of the MSG3 not including the UCI, respectively includes:
  • the base station determines whether the transmission time slot of the MSG3 is the same as the feedback time slot of the periodic CSI feedback resource;
  • the MSG3 fails to be demodulated according to the number of bits of the uplink control information UCI included in the MSG3, the MSG3 is demodulated according to the number of bits of the MSG3 that does not include the uplink control information UCI.
  • the CSI-RS measurement resource is used to measure the channel state between the terminal and the base station;
  • the CSI feedback resource is used for the terminal to feed back the measured CSI result to the base station.
  • a base station which may include:
  • a processing unit configured to disable the allocation of periodic channel state indication CSI feedback resources before the transceiver unit receives the first message MSG1 sent by the terminal;
  • the transceiver unit is configured to receive MSG1 sent by the terminal, where the MSG1 carries random access request information; send a second message MSG2 to the terminal, where the MSG2 carries random access response information; receive a message sent by the terminal The third message MSG3;
  • the processing unit is further configured to demodulate the MSG3 according to the number of bits of the MSG3 that does not include the uplink control information UCI, so as to complete the access of the terminal; and allocate periodic CSI feedback resources to the terminal.
  • the MSG1 is a cell handover request or a secondary base station addition request.
  • the processing unit is specifically used for:
  • the transceiver unit Before the transceiver unit receives the first message MSG1 sent by the terminal, disable the allocation of periodic CSI-RS measurement resources and the allocation of periodic CSI feedback resources; or
  • the transceiver unit Before the transceiver unit receives the first message MSG1 sent by the terminal, it allocates periodic or aperiodic CSI-RS measurement resources to the terminal, and allocates aperiodic CSI feedback resources to the terminal.
  • the processing unit allocates periodic CSI-RS measurement resources to the terminal CSI feedback resources are also used for:
  • Periodic channel state indication reference signal CSI-RS measurement resources are allocated to the terminal.
  • the CSI-RS measurement resource is used to measure the channel state between the terminal and the base station;
  • the CSI feedback resource is used for the terminal to feed back the measured CSI result to the base station.
  • a base station which may include:
  • a processing unit configured to allocate periodic channel state indication reference signal CSI-RS measurement resources and periodic CSI feedback resources to the terminal before the transceiver unit receives the first message MSG1 sent by the terminal;
  • the transceiver unit is configured to receive MSG1 sent by the terminal, where the MSG1 carries random access request information; send a second message MSG2 to the terminal, where the MSG2 carries random access response information; receive a message sent by the terminal The third message MSG3;
  • the processing unit is further configured to demodulate the MSG3 according to the number of bits of the uplink control information UCI included in the MSG3 and according to the number of bits of the MSG3 that does not include the UCI, to complete the access of the terminal.
  • the processing unit is specifically used for:
  • the MSG3 fails to be demodulated according to the number of bits of the uplink control information UCI included in the MSG3, the MSG3 is demodulated according to the number of bits of the MSG3 that does not include the uplink control information UCI.
  • the CSI-RS measurement resource is used to measure the channel state between the terminal and the base station;
  • the CSI feedback resource is used for the terminal to feed back the measured CSI result to the base station.
  • an apparatus in a fifth aspect, has the function of implementing the behavior of the base station in the above method aspect, and includes means for executing the steps or functions described in the above method aspect.
  • the steps or functions can be implemented by software, or by hardware (eg, circuits), or by a combination of hardware and software.
  • the apparatus described above includes one or more processors and communication units.
  • the one or more processors are configured to support the apparatus to perform the corresponding functions of the base station in the above method. For example, before receiving the first message MSG1 sent by the terminal, the allocation of periodic channel state indication CSI feedback resources is turned off. After the MSG3 sent by the terminal is received, periodic CSI feedback resources are allocated to the terminal.
  • the communication unit is used to support the communication between the apparatus and other devices, and realize the function of receiving and/or sending. For example, information such as MSG2 and CSI-RS measurement resources and CSI feedback resources are sent to the terminal, and a random access request sent by the terminal is received.
  • the apparatus may further include one or more memories, which are coupled to the processor and store necessary program instructions and/or data of the apparatus.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor. This application is not limited.
  • the apparatus may be a base station, gNB, SgNB or TRP, etc.
  • the communication unit may be a transceiver, or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the device may also be a communication chip.
  • the communication unit may be an input/output circuit or an interface of a communication chip.
  • the above device includes a transceiver, a processor and a memory.
  • the processor is used to control the transceiver or the input/output circuit to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to run the computer program in the memory, so that the apparatus performs the first aspect or any one of the first aspects
  • a system in a sixth aspect, includes the above-mentioned base station and terminal.
  • a computer-readable storage medium for storing a computer program, the computer program comprising instructions for performing the method in the first aspect or any one of the possible implementations of the first aspect.
  • a computer-readable storage medium for storing a computer program, the computer program comprising instructions for executing the method in the second aspect or any possible implementation manner of the second aspect.
  • a computer program product comprising: computer program code, when the computer program code is run on a computer, the computer is made to execute the first aspect or any one of the first aspects methods in possible implementations.
  • a computer program product comprising: computer program code, when the computer program code is run on a computer, causing the computer to execute any one of the second aspect and the second aspect above methods in possible implementations.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a random access method provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart of another random access method provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of the composition of a base station according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the composition of another base station according to an embodiment of the present application.
  • Random Access Random Access (Random Access, RACH for short) is an important process in cell access/cell handover and other processes, and the success rate of RACH will directly affect the normal operation of services and user experience.
  • the base station and the terminal can complete random access through MSG1-MSG4: MSG1, the terminal sends a random access preamble (Preamble); MSG2, the base station sends a random access response message; MSG3, the terminal sends msg3, the content of MSG3 and random access.
  • Preamble random access preamble
  • MSG2 the base station sends a random access response message
  • MSG3 the terminal sends msg3, the content of MSG3 and random access.
  • the content of MSG3 is a radio resource control (Radio Resource Control, RRC) connection request during initial access, and the content of MSG3 is an RRC connection re-establishment request when the connection is reestablished; MSG4, the base station sends a conflict resolution information.
  • RRC Radio Resource Control
  • the base station will configure periodic CSI-RS measurement resources and CSI feedback resources for the terminal before the RACH process. If the sending time slot of the MSG3 message sent by the terminal is the same time slot as the feedback time slot of the periodic CSI feedback resource configured before the RACH, the base station demodulates the MSG according to the UCI information transmitted along the channel in the MSG3, because the processing capability of the terminal is different. , some terminals cannot obtain valid CSI measurement results when sending MSG3, and these terminals will not report at this time.
  • the base station will still follow the number of bits of UCI information associated with the channel (when there is UCI information transmitted along the channel, the number of bits of MSG3 will increase by more than 10 bits), which will lead to the number of bits on the base station side and the terminal side.
  • the numbers cannot be aligned, causing MSG demodulation failure and RACH failure; if the base station demodulates the MSG according to the lack of UCI information transmitted along the channel in MSG3, because some terminals measure faster and report the CSI measurement results, or some terminals There is no time to get a valid measurement result but a value of 0 is reported, which also causes the number of bits on the base station side and the terminal side to be unaligned, resulting in MSG demodulation failure and RACH failure. Therefore, in this scenario, it is necessary to provide a method that enables the base station to demodulate MSG3 normally and improve the RACH success rate when the transmission time slot for the terminal to transmit MSG3 is the same as the feedback time slot for periodic feedback of CSI.
  • FIG. 1 is a schematic structural diagram of a communication system in an embodiment of the present invention. It may include a base station and at least one terminal.
  • the base station 10 may be an NR base station (gNB), a secondary base station (SgNB), an evolved Node B (evolved Node B, eNB for short), a Node B (Node B, NB for short), a Base Station Controller (Base Station Controller, for short) BSC), base transceiver station (Base Transceiver Station, referred to as BTS), home base station (for example, Home evolved NodeB, or Home Node B, referred to as HNB), baseband unit (BaseBand Unit, referred to as BBU) and so on.
  • gNB NR base station
  • SgNB secondary base station
  • BTS Base Station Controller
  • BTS base transceiver station
  • HNB home base station
  • BBU baseband unit
  • the base station 10 may select the time for allocating periodic CSI-RS measurement resources and periodic CSI feedback resources to the terminal according to the needs of the RACH, The terminal access is completed by exchanging the RACH-related information for the terminal 20 .
  • the terminal 20 may also be referred to as user equipment (User Equipment, UE for short). It may include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, Personal Digital Assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (eg MP3 players), cameras, game consoles, or any other similarly functioning device.
  • a terminal may also be referred to by those skilled in the art as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile Terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or some other appropriate term.
  • the terminal 20 may receive periodic CSI measurement resources and CSI feedback resources allocated by the base station 10, and use these resources to perform CSI measurement. For measurement and feedback, the RACH-related information is exchanged with the base station 20 to complete the access.
  • the number of terminals 20 may be one or more, and some terminals may also serve as relay devices, which may send downlink information to other terminals, and A user group may also be formed between the terminals, which is not limited in this embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a random access method provided by an embodiment of the present application; it specifically includes the following steps:
  • the base station Before receiving the first message MSG1 sent by the terminal, the base station turns off the allocation of periodic channel state indication CSI feedback resources.
  • the MSG1 is a cell handover request or a secondary base station addition request, or is a random access request initiated by the terminal in other scenarios that need to perform RACH.
  • the base station before receiving the first message MSG1 sent by the terminal, the base station disables the allocation of periodic channel state indication CSI feedback resources, including:
  • the base station disables the allocation of periodic CSI-RS measurement resources and the allocation of periodic CSI feedback resources before receiving the first message MSG1 sent by the terminal;
  • the base station Before receiving the first message MSG1 sent by the terminal, the base station allocates periodic or aperiodic CSI-RS measurement resources to the terminal, and allocates aperiodic CSI feedback resources to the terminal.
  • the disabling of the allocation of periodic CSI feedback resources refers to the normal RACH process.
  • the base station allocates periodic CSI feedback resources to the terminal.
  • the base station will not allocate periodic CSI feedback resources to the terminal before the terminal performs RACH.
  • S202 Receive MSG1 sent by the terminal, where the MSG1 carries random access request information.
  • S203 Send a second message MSG2 to the terminal, where the MSG2 carries random access response information. It contains scheduling information for MSG3.
  • S204 Receive the third message MSG3 sent by the terminal, demodulate the MSG3 according to the number of bits in the MSG3 that does not include the uplink control information UCI, and complete the access of the terminal.
  • the base station Since the base station does not allocate periodic CSI feedback resources to the terminal before the RACH process, there is no situation that the periodic CSI feedback time slot is the same as the MSG3 transmission time slot. And if the base station allocates aperiodic CSI feedback resources for the terminal, the terminal usually needs to send downlink control information (Downlink Control Information, DCI for short) after the MSG3 to trigger the terminal to feedback the CSI measurement result, so there is no such thing.
  • DCI Downlink Control Information
  • the base station can clearly know that there is no UCI associated channel information for reporting the CSI measurement result in MSG3, and directly demodulate the MSG3 according to the number of bits of the MSG3 excluding uplink control information UCI to complete the RACH process.
  • the base station After the terminal completes the access, the base station allocates periodic CSI feedback resources to the terminal.
  • the base station may carry periodic CSI feedback resources through an RRC reconfiguration message or other messages.
  • the method further includes:
  • Periodic channel state indication reference signal CSI-RS measurement resources are allocated to the terminal.
  • the CSI-RS measurement resource is used to measure the channel state between the terminal and the base station;
  • the CSI feedback resource is used for the terminal to feed back the measured CSI result to the base station.
  • the base station closes the allocation of periodic CSI feedback resources before the RCAH process of the terminal, so that there is no UCI channel associated information in MSG3, so that the base station can demodulate according to the number of bits in MSG3 that does not include UCI MSG3, completes terminal access.
  • the demodulation efficiency and accuracy rate of MSG3 are improved, thereby improving the success rate of terminal access, ensuring the normal operation of services and normal data transmission, and providing users with a better service experience.
  • FIG. 3 is a schematic flowchart of another random access method provided by an embodiment of the present application. including:
  • the base station Before receiving the first message MSG1 sent by the terminal, the base station allocates periodic channel state indication reference signal CSI-RS measurement resources and periodic CSI feedback resources to the terminal.
  • S305 Demodulate the MSG3 according to the number of bits of the uplink control information UCI included in the MSG3 and according to the number of bits of the MSG3 that does not include the UCI, to complete the access of the terminal.
  • demodulating the MSG3 according to the number of bits of the uplink control information UCI included in the MSG3 and according to the number of bits of the MSG3 not including the UCI, respectively, includes:
  • the base station determines whether the transmission time slot of the MSG3 is the same as the feedback time slot of the periodic CSI feedback resource;
  • the MSG3 fails to be demodulated according to the number of bits of the uplink control information UCI included in the MSG3, the MSG3 is demodulated according to the number of bits of the MSG3 that does not include the uplink control information UCI.
  • the CSI-RS measurement resource is used to measure the channel state between the terminal and the base station;
  • the CSI feedback resource is used for the terminal to feed back the measured CSI result to the base station.
  • the correct demodulation of MSG3 can be ensured, which is beneficial to improve the success rate of terminal access, and can provide users with better service experience.
  • FIG. 4 is a schematic diagram of the composition of a base station according to an embodiment of the present application; it may include:
  • the processing unit 100 is configured to disable the allocation of periodic channel state indication CSI feedback resources before the transceiver unit 200 receives the first message MSG1 sent by the terminal;
  • the transceiver unit 200 is configured to receive MSG1 sent by the terminal, where the MSG1 carries random access request information; send a second message MSG2 to the terminal, where the MSG2 carries random access response information; receive the terminal The third message MSG3 sent;
  • the processing unit 100 is further configured to demodulate the MSG3 according to the number of bits of the MSG3 that does not include the uplink control information UCI, so as to complete the access of the terminal; and allocate periodic CSI feedback resources to the terminal.
  • the MSG1 is a cell handover request or a secondary base station addition request.
  • processing unit is specifically used for:
  • the transceiver unit Before the transceiver unit receives the first message MSG1 sent by the terminal, disable the allocation of periodic CSI-RS measurement resources and the allocation of periodic CSI feedback resources; or
  • the transceiver unit Before the transceiver unit receives the first message MSG1 sent by the terminal, it allocates periodic or aperiodic CSI-RS measurement resources to the terminal, and allocates aperiodic CSI feedback resources to the terminal.
  • the base station does not allocate periodic CSI-RS measurement resources to the terminal before receiving the first message MSG1 sent by the terminal, when the processing unit allocates periodic CSI feedback resources to the terminal , also used for:
  • Periodic channel state indication reference signal CSI-RS measurement resources are allocated to the terminal.
  • the CSI-RS measurement resource is used to measure the channel state between the terminal and the base station;
  • the CSI feedback resource is used for the terminal to feed back the measured CSI result to the base station.
  • the processing unit 100 is configured to, before the transceiver unit receives the first message MSG1 sent by the terminal, allocate to the terminal periodic channel state indication reference signal CSI-RS measurement resources and periodic CSI feedback resources;
  • the transceiver unit 200 is configured to receive MSG1 sent by the terminal, where the MSG1 carries random access request information; send a second message MSG2 to the terminal, where the MSG2 carries random access response information; receive the terminal The third message MSG3 sent;
  • the processing unit 100 is further configured to demodulate the MSG3 according to the number of bits of the uplink control information UCI included in the MSG3 and according to the number of bits of the MSG3 that does not include the UCI, to complete the access of the terminal.
  • processing unit 100 is specifically used for:
  • the MSG3 fails to be demodulated according to the number of bits of the uplink control information UCI included in the MSG3, the MSG3 is demodulated according to the number of bits of the MSG3 that does not include the uplink control information UCI.
  • FIG. 5 is a schematic diagram of the composition of another base station according to an embodiment of the present application; as shown in FIG. 5 , the base station may include a processor 110 , a memory 120 and a bus 130 .
  • the processor 110 and the memory 120 are connected through a bus 130, the memory 120 is used for storing instructions, and the processor 110 is used for executing the instructions stored in the memory 120 to implement the steps in the method corresponding to FIG. 2 or FIG. 3 above.
  • the base station may further include an input port 140 and an output port 150 .
  • the processor 110 , the memory 120 , the input port 140 and the output port 150 may be connected through the bus 130 .
  • the processor 110 is configured to execute the instructions stored in the memory 120 to control the input port 140 to receive signals, and control the output port 150 to send signals, so as to complete the steps performed by the base station in the above method.
  • the input port 140 and the output port 150 may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as input and output ports.
  • the memory 120 may be integrated in the processor 110 , or may be provided separately from the processor 110 .
  • the functions of the input port 140 and the output port 150 can be considered to be implemented by a transceiver circuit or a dedicated chip for transceiver.
  • the processor 110 can be considered to be implemented by a dedicated processing chip, a processing circuit, a processor or a general-purpose chip.
  • a general-purpose computer may be used to implement the base station provided in the embodiment of the present application.
  • the program codes that will implement the functions of the processor 110, the input port 140 and the output port 150 are stored in the memory, and the general-purpose processor implements the functions of the processor 110, the input port 140 and the output port 150 by executing the codes in the memory.
  • FIG. 5 For the convenience of description, only one memory and a processor are shown in FIG. 5 . In an actual controller, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present application.
  • the processor may be a central processing unit (Central Processing Unit, referred to as CPU), and the processor may also be other general-purpose processors, digital signal processors (Digital Signal Processing, referred to as DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • CPU Central Processing Unit
  • DSP Digital Signal Processing
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • the memory which may include read-only memory and random access memory, provides instructions and data to the processor.
  • a portion of the memory may also include non-volatile random access memory.
  • the bus may also include a power bus, a control bus, a status signal bus, and the like.
  • the various buses are labeled as buses in the figure.
  • each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • 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. To avoid repetition, detailed description is omitted here.
  • the embodiment of the present application further provides a system, which includes the aforementioned base station, terminal, and the like.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, rather than the implementation process of the embodiments of the present application. constitute any limitation.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state drives), and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé d'accès aléatoire et une station de base. Le procédé comprend les étapes suivantes : avant de recevoir un premier message MSG1 transmis par un terminal, une station de base désactive l'attribution des ressources de rétroaction d'informations d'état de canal (CSI) périodiques ; reçoit le MSG1 transmis par le terminal, le MSG1 comportant des informations de demande d'accès aléatoire ; transmet un deuxième message MSG2 au terminal, le MSG2 comportant des informations de réponse d'accès aléatoire ; reçoit un troisième message MSG3 transmis par le terminal, analyse le MSG3 d'après le nombre de bits ne comprenant pas d'informations de commande de liaison montante (UCI) dans le MSG3, puis termine l'accès au terminal ; et attribue une ressource de rétroaction de CSI périodiques au terminal. La mise en œuvre des modes de réalisation de la présente demande améliore le taux de réussite d'accès aléatoire du terminal.
PCT/CN2020/109271 2020-08-14 2020-08-14 Procédé d'accès aléatoire et station de base WO2022032656A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/109271 WO2022032656A1 (fr) 2020-08-14 2020-08-14 Procédé d'accès aléatoire et station de base

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/109271 WO2022032656A1 (fr) 2020-08-14 2020-08-14 Procédé d'accès aléatoire et station de base

Publications (1)

Publication Number Publication Date
WO2022032656A1 true WO2022032656A1 (fr) 2022-02-17

Family

ID=80247555

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/109271 WO2022032656A1 (fr) 2020-08-14 2020-08-14 Procédé d'accès aléatoire et station de base

Country Status (1)

Country Link
WO (1) WO2022032656A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110113818A (zh) * 2018-02-01 2019-08-09 北京三星通信技术研究有限公司 信道状态信息上报方法、用户设备、基站和计算机可读介质

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110113818A (zh) * 2018-02-01 2019-08-09 北京三星通信技术研究有限公司 信道状态信息上报方法、用户设备、基站和计算机可读介质

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
CATT: "Correction for UCI on Msg3 PUSCH", 3GPP DRAFT; R1-2005661, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200817 - 20200828, 8 August 2020 (2020-08-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051917636 *
ERICSSON: "Support of quality report in Msg3 in LTE-MTC", 3GPP DRAFT; R1-1812123 SUPPORT OF QUALITY REPORT IN MSG3 IN LTE-MTC, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Spokane, USA; 20181112 - 20181116, 11 November 2018 (2018-11-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051553964 *
INTEL CORPORATION: "Remaining details of channel structure for 2-step RACH", 3GPP DRAFT; R1-2001983, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200420 - 20200430, 11 April 2020 (2020-04-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051875357 *
INTEL CORPORATION: "Remaining details of procedure for 2-step RACH", 3GPP DRAFT; R1-2000720, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200224 - 20200306, 15 February 2020 (2020-02-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051853413 *
SAMSUNG: "Feature summary of 6.2.1.5 Support of quality report in Msg3", 3GPP DRAFT; R1-1813741 FEATURE SUMMARY OF 6.2.1.5 QUALITY REPORT IN MSG3, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Spokane, US; 20181112 - 20181116, 14 November 2018 (2018-11-14), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051494329 *

Similar Documents

Publication Publication Date Title
JP6856300B2 (ja) ランダムアクセス方法、ネットワークデバイス、及びユーザ機器
JP7005759B2 (ja) データ伝送方法、端末装置、およびネットワーク装置
JP5641630B2 (ja) 測定情報を報告するための方法及び装置
US20210195678A1 (en) Communication Method and Communications Apparatus
WO2020164142A1 (fr) Procédé et dispositif de traitement d'informations de bloc de signal de synchronisation, et dispositif de communication
WO2018233516A1 (fr) Procédé d'attribution de ressource, station de base, et terminal
WO2018201926A1 (fr) Procédé de commutation de porteuse de liaison montante, dispositif réseau et dispositif terminal
WO2019023851A1 (fr) Procédé, dispositif et système de communication
EP3627929B1 (fr) Procédé d'attribution de ressources, dispositif terminal, et dispositif de réseau
JP2019531009A (ja) データ伝送方法、端末デバイス及びネットワーク側デバイス
CN113923750A (zh) 接入小区的方法和装置
US20210314923A1 (en) Methods and Devices for Data Transmission
WO2022128617A1 (fr) Procédé de réseau pour terminaison et signalisation de transmission de petites données
WO2019183966A1 (fr) Procédé et dispositif d'accès aléatoire
WO2020224648A1 (fr) Procédé d'attribution de ressources, station de base et terminal
JP7199551B2 (ja) リソース予約方法および関連デバイス
JP2021502756A (ja) 通信装置のランダム・アクセス方法、装置、及び記憶媒体
WO2023088038A1 (fr) Procédé de communication de liaison latérale et appareil associé
WO2022032656A1 (fr) Procédé d'accès aléatoire et station de base
WO2019153332A1 (fr) Procédé de transmission de données et dispositif de communication
US11979228B2 (en) Signal transmission method and communications apparatus
CN112584544B (zh) 随机接入过程
CN113784386B (zh) 数据的传输方法及装置、终端及网络侧设备
WO2021114103A1 (fr) Procédé d'établissement de double connectivité et appareil de communication
WO2022032663A1 (fr) Procédé de transmission coordonnée, station de base, et terminal

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20949154

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20949154

Country of ref document: EP

Kind code of ref document: A1