WO2022032656A1

WO2022032656A1 - Method for random access and base station

Info

Publication number: WO2022032656A1
Application number: PCT/CN2020/109271
Authority: WO
Inventors: 涂靖
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2022-02-17
Anticipated expiration: 2023-02-14

Abstract

Disclosed are a method for random access and a base station. The method comprises: a base station, before receiving a first message MSG1 transmitted by a terminal, turns off the assignment of periodical channel state information (CSI) feedback resources; receives the MSG1 transmitted by the terminal, the MSG1 carrying random access request information; transmits a second message MSG2 to the terminal, the MSG2 carrying random access response information; receives a third message MSG3 transmitted by the terminal, parses the MSG3 on the basis of the number of bits comprising no uplink control information (UCI) in the MSG3, and completes the accessing for the terminal; and assigns a periodical CSI feedback resource to the terminal. The employment of the embodiments of the present application increases the success rate of terminal random access.

Description

A kind of random access method and base station

technical field

本申请通信技术领域，尤其涉及一种随机接入的方法及基站。The present application is in the field of communication technologies, and in particular, relates to a random access method and a base station.

Background technique

随机接入是长期演进(Long Term Evolution，简称LTE)系统和新无线(New Radio，简称NR)系统中一个基本且重要的过程，其主要目的如下：1、建立上行链路同步；2、为终端分配一个唯一的小区无线网络临时标识(Cell Radio Network Temporary Identifier，简称C-RNTI)，请求网络分配给终端上行链路资源。所以随机接入不仅用于初始化接入如非独立组网(non-Stand alone，简称NSA)的初始接入，而且还可以用于切换过程中的新小区接入、无线链路失败后的接入、在有上行/下行数据传输时重新恢复上行同步以及上行共享信道(uplink shared channel，简称UL-SCH)资源请求等。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.

在现有的随机接入流程之前，基站通常会为终端配置好周期性的信道状态指示参考信号(Channel State Information Reference Signal，简称CSI-RS)测量资源以及对应的周期性的信道状态指示(Channel State Information，简称CSI)反馈资源，以便终端使用配置的CSI-RS测量资源测量信道状态并通过上行控制信息(Uplink Control Information，简称UCI)携带CSI的测量结果给基站。由于先配置的周期性CSI反馈资源的反馈时隙(slot)可能与终端在随机接入过程中发送的MSG3消息的发送时隙相同，由于终端的处理能力不同，部分终端可以在发送MSG3消息时获取到CSI测量结果，部分终端无法获取到CSI测量结果，这将导致基站侧无法准确的获知终端侧在发送MSG3消息时是否存在随路传输的UCI。因此将导致基站侧和终端侧的UCI比特数可能不一致，使得MS3消息解调失败进而导致随机接入失败。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. State Information, referred to as CSI) feedback resources, so that the terminal uses the configured CSI-RS measurement resources to measure the channel state and carries the CSI measurement results to the base station through uplink control information (Uplink Control Information, referred to as UCI). Since 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.

发明内容SUMMARY OF THE INVENTION

本申请实施例所要解决的技术问题在于，提供一种随机接入的方法及基站，以解决终端随机接入过程中发送的MSG3消息解调失败，导致随机接入失败的问题。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.

第一方面，本申请的实施例提供了一种随机接入的方法，可包括：In a first aspect, the embodiments of the present application provide a method for random access, which may include:

基站在接收终端发送的第一消息MSG1之前，关闭周期性信道状态指示CSI反馈资源的分配；Before receiving the first message MSG1 sent by the terminal, the base station disables the allocation of periodic channel state indication CSI feedback resources;

接收所述终端发送的MSG1，所述MSG1携带随机接入请求信息；receiving MSG1 sent by the terminal, where the MSG1 carries random access request information;

发送第二消息MSG2给所述终端,所述MSG2携带随机接入响应信息；sending a second message MSG2 to the terminal, where the MSG2 carries random access response information;

接收所述终端发送的第三消息MSG3，根据所述MSG3中不包括上行控制信息UCI的比特数解调所述MSG3，完成所述终端的接入；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;

为所述终端分配周期性的CSI反馈资源。Periodic CSI feedback resources are allocated to the terminal.

基站在终端的RCAH流程之前，关闭周期性CSI反馈资源的分配，使得MSG3中不会存在UCI的随路信息，这样基站可以根据MSG3中不包括UCI的比特数解调MSG3，完成终端的接入。提升了MSG3的解调效率和正确率，进而提升了终端接入的成功率，确保了业务的正常进行和数据的正常传输，可以为用户提供更好的业务体验。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.

在一种可能的实现方式中，所述MSG1为小区切换请求或辅基站添加请求。In a possible implementation manner, the MSG1 is a cell handover request or a secondary base station addition request.

在一种可能的实现方式中，所述基站在接收终端发送的第一消息MSG1之前，关闭周期性信道状态指示CSI反馈资源的分配，包括：In a possible implementation manner, 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:

所述基站在接收终端发送的第一消息MSG1之前，关闭周期性CSI-RS测量资源的分配以及周期性CSI反馈资源的分配；或者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; or

所述基站在接收终端发送的第一消息MSG1之前，为所述终端分配周期性或非周期性的CSI-RS测量资源，以及为所述终端分配非周期性的CSI反馈资源。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.

在一种可能的实现方式中，若所述基站在接收终端发送的第一消息MSG1之前，没有为所述终端分配周期性CSI-RS测量资源，则所述为所述终端分配周期性的CSI反馈资源时，还包括：In a possible implementation manner, if 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. When providing feedback on resources, also include:

为所述终端分配周期性的信道状态指示参考信号CSI-RS测量资源。Periodic channel state indication reference signal CSI-RS measurement resources are allocated to the terminal.

在一种可能的实现方式中，所述CSI-RS测量资源用于测量所述终端与所述基站之间的信道状态；In a possible implementation manner, the CSI-RS measurement resource is used to measure the channel state between the terminal and the base station;

所述CSI反馈资源用于所述终端向所述基站反馈测量得到的CSI结果。The CSI feedback resource is used for the terminal to feed back the measured CSI result to the base station.

第二方面，本申请的实施例提供了一种随机接入的方法，可包括：In a second aspect, the embodiments of the present application provide a method for random access, which may include:

基站在接收终端发送的第一消息MSG1之前，为所述终端分配周期性的信道状态指示参考信号CSI-RS测量资源以及周期性的CSI反馈资源；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;

接收所述终端发送的第三消息MSG3，根据所述MSG3中包括上行控制信息UCI的比特数以及根据所述MSG3中不包括所述UCI的比特数分别解调所述MSG3，完成所述终端的接入。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.

通过双重解调的方式，可以确保MSG3的正确解调，利于提升终端接入的成功率，可以为用户提供更好的业务体验。By means of double demodulation, 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.

在一种可能的实现方式中，所述根据所述MSG3中包括上行控制信息UCI的比特数以及根据所述MSG3中不包括所述UCI的比特数分别解调所述MSG3，包括：In a possible implementation manner, 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:

所述基站判断所述MSG3的发送时隙与所述周期性的CSI反馈资源的反馈时隙是否相同；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;

若相同，则根据所述MSG3中包括上行控制信息UCI的比特数解调所述MSG3；If they are the same, demodulate the MSG3 according to the number of bits of the uplink control information UCI included in the MSG3;

若不相同，则根据所述MSG3中不包括上行控制信息UCI的比特数解调所述MSG3；If not, demodulate the MSG3 according to the number of bits in the MSG3 that does not include the uplink control information UCI;

若根据所述MSG3中包括上行控制信息UCI的比特数解调所述MSG3失败时，则根据所述MSG3中不包括上行控制信息UCI的比特数解调所述MSG3。If 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.

第三方面，本申请的实施例提供了一种基站，可包括：In a third aspect, embodiments of the present application provide a base station, which may include:

处理单元，用于在收发单元接收终端发送的第一消息MSG1之前，关闭周期性信道状态指示CSI反馈资源的分配；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;

所述收发单元，用于接收所述终端发送的MSG1，所述MSG1携带随机接入请求信息；发送第二消息MSG2给所述终端,所述MSG2携带随机接入响应信息；接收所述终端发送的第三消息MSG3；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;

所述处理单元还用于根据所述MSG3中不包括上行控制信息UCI的比特数解调所述MSG3，完成所述终端的接入；为所述终端分配周期性的CSI反馈资源。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.

在一种可能的实现方式中，所述处理单元具体用于：In a possible implementation manner, the processing unit is specifically used for:

在所述收发单元接收终端发送的第一消息MSG1之前，关闭周期性CSI-RS测量资源的分配以及周期性CSI反馈资源的分配；或者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

在所述收发单元接收终端发送的第一消息MSG1之前，为所述终端分配周期性或非周期性的CSI-RS测量资源，以及为所述终端分配非周期性的CSI反馈资源。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.

在一种可能的实现方式中，若所述基站在接收终端发送的第一消息MSG1之前，没有为所述终端分配周期性CSI-RS测量资源，则所述处理单元为所述终端分配周期性的CSI反馈资源时，还用于：In a possible implementation manner, if the base station does not allocate periodic CSI-RS measurement resources to the terminal before receiving the first message MSG1 sent by the terminal, the processing unit allocates periodic CSI-RS measurement resources to the terminal CSI feedback resources are also used for:

第四方面，本申请的实施例提供了一种基站，可包括：In a fourth aspect, embodiments of the present application provide a base station, which may include:

处理单元，用于在收发单元接收终端发送的第一消息MSG1之前，为所述终端分配周期性的信道状态指示参考信号CSI-RS测量资源以及周期性的CSI反馈资源；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;

所述处理单元还用于根据所述MSG3中包括上行控制信息UCI的比特数以及根据所述MSG3中不包括所述UCI的比特数分别解调所述MSG3，完成所述终端的接入。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.

判断所述MSG3的发送时隙与所述周期性的CSI反馈资源的反馈时隙是否相同；Judging whether the transmission time slot of the MSG3 is the same as the feedback time slot of the periodic CSI feedback resource;

在一种可能的实现方式中，所述CSI-RS测量资源用于测量所述终端与所述基站之间的信道状态；In a possible implementation, the CSI-RS measurement resource is used to measure the channel state between the terminal and the base station;

第五方面，提供了一种装置。本申请提供的装置具有实现上述方法方面中基站行为的功能，其包括用于执行上述方法方面所描述的步骤或功能相对应的部件(means)。所述步骤或功能可以通过软件实现，或硬件(如电路)实现，或者通过硬件和软件结合来实现。In a fifth aspect, an apparatus is provided. The apparatus provided by the present application 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.

在一种可能的设计中，上述装置包括一个或多个处理器和通信单元。所述一个或多个处理器被配置为支持所述装置执行上述方法中基站相应的功能。例如，在接收终端发送的第一消息MSG1之前，关闭周期性信道状态指示CSI反馈资源的分配。在接收终端发送的MSG3之后，再为终端分配周期性的CSI反馈资源。所述通信单元用于支持所述装置与其他设备通信，实现接收和/或发送功能。例如，向终端发送MSG2和CSI-RS测量资源和CSI反馈资源的信息等，以及接收终端发送的随机接入请求。In one possible design, 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.

可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存装置必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置。本申请并不限定。Optionally, 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.

所述装置可以为基站，gNB，SgNB或TRP等，所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。The apparatus may be a base station, gNB, SgNB or TRP, etc., and the communication unit may be a transceiver, or a transceiver circuit. Optionally, the transceiver may also be an input/output circuit or an interface.

所述装置还可以为通信芯片。所述通信单元可以为通信芯片的输入/输出电路或者接口。The device may also be a communication chip. The communication unit may be an input/output circuit or an interface of a communication chip.

另一个可能的设计中，上述装置，包括收发器、处理器和存储器。该处理器用于控制收发器或输入/输出电路收发信号，该存储器用于存储计算机程序，该处理器用于运行该存储器中的计算机程序，使得该装置执行第一方面或第一方面中任一种可能实现方式或第二方面或第二方面中任一种可能实现方式中基站完成的方法。In another possible design, 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, and 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 The method performed by the base station in the possible implementation manner or the second aspect or any of the possible implementation manners of the second aspect.

第六方面，提供了一种系统，该系统包括上述基站和终端。In a sixth aspect, a system is provided, and the system includes the above-mentioned base station and terminal.

第七方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序包括用于执行第一方面或第一方面中任一种可能实现方式中的方法的指令。In a seventh aspect, a computer-readable storage medium is provided 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.

第八方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序包括用于执行第二方面或第二方面中任一种可能实现方式中的方法的指令。In an eighth aspect, a computer-readable storage medium is provided 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.

第九方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行上述第一方面或第一方面中任一种可能实现方式中的方法。In a ninth aspect, a computer program product is provided, the 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.

第十方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行上述第二方面及第二方面中任一种可能实现方式中的方法。In a tenth aspect, a computer program product is provided, the 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.

Description of drawings

为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the accompanying drawings required in the embodiments or the background technology of the present application will be described below.

图1为本申请实施例提供的一种通信系统的架构示意图；FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

图2为本申请实施例提供的一种随机接入的方法的流程示意图；FIG. 2 is a schematic flowchart of a random access method provided by an embodiment of the present application;

图3为本申请实施例提供的另一种随机接入的方法的流程示意图；3 is a schematic flowchart of another random access method provided by an embodiment of the present application;

图4为本申请实施例提供的一种基站的组成示意图；FIG. 4 is a schematic diagram of the composition of a base station according to an embodiment of the present application;

图5为本申请实施例提供的另一种基站的组成示意图。FIG. 5 is a schematic diagram of the composition of another base station according to an embodiment of the present application.

detailed description

下面结合本申请实施例中的附图对本申请的实施例进行描述。The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

本申请的说明书和权利要求书及上述附图中的术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。The terms "comprising" and "having", and any variations thereof, in the description and claims of this application and the above figures are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

随机接入(Random Access，简称RACH)作为小区接入/小区切换等流程中的一个重要过程，RACH成功率的高低将直接影响着业务的正常进行和用户的体验。基站与终端之间可以通过MSG1-MSG4完成随机接入：MSG1，终端发送随机接入前导码(Preamble)；MSG2，基站发送随机接入响应消息；MSG3，终端发送msg3，MSG3的内容与随机接入的几类触发事件对应，例如，初次接入时MSG3的内容为无线资源控制(Radio Resource Control，简称RRC)连接请求，连接重建时MSG3的内容为RRC连接重建请求；MSG4，基站发送冲突解决消息。从而完成随机接入过程。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. Corresponding to several types of trigger events entered, for example, 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. Thus, the random access process is completed.

在当前的许多流程中如小区切换，第四代移动通信技术(the 4th generation mobile communication technology，简称4G)网络，第五代移动通信技术(the 5th generation mobile communication technology，简称5G)网络共存的NSA接入等，基站会在RACH流程之前为终端配置好周期性的CSI-RS测量资源和CSI反馈资源。如果终端发送MSG3消息的发送时隙与RACH之前配置的周期性CSI反馈资源的反馈时隙为同一时隙，基站按照MSG3中存在随路传输的UCI信息对MSG进行解调，由于终端处理能力不同，部分终端在发送MSG3时还无法获取到有效的CSI测量结果，此时这部分终端将不会上报。但基站仍会按照存在随路传输的UCI信息的比特数(当存在随路传输的UCI信息时，MSG3的比特数会额外增加10多个比特)，这就会导致基站侧和终端侧的比特数无法对齐，造成MSG解调失败，从而RACH失败；如果基站按照MSG3中不存在随路传输的UCI信息对MSG进行解调，由于部分终端测量较快，并上报了CSI测量结果，或者部分终端没来得及得到有效的测量结果但上报了0值，这同样会导致基站侧和终端侧的比特数无法对齐，造成MSG解调失败，从而RACH失败。因此，在这种场景下，需要提供一种令基站可以终端发送MSG3的发送时隙与周期性反馈CSI的反馈时隙相同时，能正常解调MSG3，提高RACH成功率的方法。In many current processes such as cell handover, the 4th generation mobile communication technology (4G) network, and the 5th generation mobile communication technology (5G) network coexisting with NSA For access, etc., 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. However, 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.

为了便于说明，本发明实施例中以4G，5G等系统来进行描述，本领域技术人员应当理解，本发明实施例中的实施方式同样可适用于现有通信系统，未来更高级别如6G、7G的通信系统以及多种系统共存的场景，本发明实施例不作任何限定。For ease of explanation, the embodiments of the present invention are described with systems such as 4G and 5G. Those skilled in the art should understand that the implementations in the embodiments of the present invention are also applicable to existing communication systems. In the future, higher levels such as 6G, A 7G communication system and a scenario where multiple systems coexist are not limited in this embodiment of the present invention.

下面结合附图对本发明实施例的随机接入的方法及设备进行详细说明。The random access method and device according to the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

请参照图1，为本方面实施例中通信系统的架构示意图。其中可以包括基站和至少一个终端。Please refer to FIG. 1 , which 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.

其中，基站10可以是NR基站(gNB)、辅基站(SgNB)、演进型节点B(evolved Node B，简称eNB)、节点B(Node B，简称NB)、基站控制器(Base Station Controller，简称BSC)、基站收发台(Base Transceiver Station,简称BTS)、家庭基站(例如，Home evolved NodeB，或Home Node B，简称HNB)、基带单元(BaseBand Unit，简称BBU)等。其也可以被本领域技术人员称之为基站收发机、无线基站、无线收发机、收发机功能、基站子系统(Base Station Sub system，简称BSS)或者一些其它适当的术语。其是网络侧一种用于发射信号或接收信号的实体，在本申请实施例中，基站10可以根据RACH的需要选择为终端分配周期性CSI-RS测量资源和周期性CSI反馈资源的时间，与为终端20进行RACH相关的信息交互来完成终端的接入。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. It may also be called a base station transceiver, a wireless base station, a wireless transceiver, a transceiver function, a Base Station Subsystem (BSS for short) or some other appropriate term by those skilled in the art. It is an entity on the network side for transmitting signals or receiving signals. In this embodiment of the present application, 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 .

其中，终端20也可以称为用户设备(User Equipment，简称UE)。其可以包括蜂窝电话、智能电话、会话启动协议(Session Initiation Protocol，简称SIP)电话、膝上型计算机、个人数字助理(Personal Digital Assistant，简称PDA)、卫星无线电、全球定位系统、多媒体设备、视频设备、数字音频播放器(例如，MP3播放器)、照相机、游戏控制台或者其它任何相似功能的设备。终端也可以被本领域技术人员称为移动站、用户站、移动单元、用户单元、无线单元、远程单元、移动设备、无线设备、无线通信设备、远程设备、移动用户站、接入终端、移动终端、无线终端、远程终端、手持设备、用户代理、移动客户端、客户端或者一些其它适当的术语。其是用户侧的一种用于接收信号或发射信号的实体，在本申请实施例中，终端20可以接收基站10分配的周期性的CSI测量资源和CSI反馈资源，并使用这些资源进行CSI的测量和反馈，与基站20进行RACH相关的信息交互来完成接入。为了描述简便，本申请实施例仅示出了一个终端20，在实际场景中，终端20的数量可以是一个或多个，一些终端还可以作为中转设备，可以向另外一些终端发送下行信息，且终端与终端之间还可以组成用户组，本申请实施例不作任何限定。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. It is an entity on the user side for receiving signals or transmitting signals. In this embodiment of the present application, 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. For simplicity of description, only one terminal 20 is shown in this embodiment of the present application. In an actual scenario, 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.

请参见图2，图2为一个本申请实施例提供的一种随机接入的方法的流程示意图；具体包括如下步骤：Please refer to FIG. 2. 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:

S201.基站在接收终端发送的第一消息MSG1之前，关闭周期性信道状态指示CSI反馈资源的分配。S201. 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.

可选地，所述MSG1为小区切换请求或辅基站添加请求，或者为其他需要进行RACH的场景下终端发起的随机接入请求。Optionally, 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.

可选地，所述基站在接收终端发送的第一消息MSG1之前，关闭周期性信道状态指示CSI反馈资源的分配，包括：Optionally, 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:

需要说明的是，此处的关闭周期性CSI反馈资源的分配指的是按照正常的RACH流程，在进行RACH之前，基站通过会为终端分配周期性的CSI反馈资源，而在本申请实施例中，基站则不会在终端进行RACH之前为终端分配周期性的CSI反馈资源。It should be noted that the disabling of the allocation of periodic CSI feedback resources here refers to the normal RACH process. Before performing RACH, the base station allocates periodic CSI feedback resources to the terminal. In the embodiments of this application, , the base station will not allocate periodic CSI feedback resources to the terminal before the terminal performs RACH.

S202.接收所述终端发送的MSG1，所述MSG1携带随机接入请求信息。S202. Receive MSG1 sent by the terminal, where the MSG1 carries random access request information.

S203.发送第二消息MSG2给所述终端,所述MSG2携带随机接入响应信息。其中包含MSG3的调度信息。S203. Send a second message MSG2 to the terminal, where the MSG2 carries random access response information. It contains scheduling information for MSG3.

S204.接收所述终端发送的第三消息MSG3，根据所述MSG3中不包括上行控制信息UCI的比特数解调所述MSG3，完成所述终端的接入。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.

由于在RACH流程之前，基站没有为终端分配周期性的CSI反馈资源，因此不会存在周期性CSI反馈时隙与MSG3发送时隙相同的情况。且如果基站为终端分配了非周期性的CSI反馈资源，则终端通常要在MSG3之后由基站发送下行控制信息(Downlink Control Information，简称DCI)才会触发终端反馈CSI测量结果，因此也不会存在非周期性CSI反馈时隙与MSG3发送时隙相同的情况。从而使得基站可以明确的知道MSG3中不会存在用于上报CSI测量结果的UCI的随路信息，直接根据所述MSG3中不包括上行控制信息UCI的比特数解调所述MSG3，完成RACH过程。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. The case where the aperiodic CSI feedback slot is the same as the MSG3 transmission slot. Therefore, 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.

S205.为所述终端分配周期性的CSI反馈资源。S205. Allocate periodic CSI feedback resources to the terminal.

在终端完成接入之后，基站再为终端分配周期性的CSI反馈资源。After the terminal completes the access, the base station allocates periodic CSI feedback resources to the terminal.

可选地，基站可以通过RRC重配置消息或其他消息携带周期性的CSI反馈资源。Optionally, the base station may carry periodic CSI feedback resources through an RRC reconfiguration message or other messages.

可选地，若所述基站在接收终端发送的第一消息MSG1之前，没有为所述终端分配周期性CSI-RS测量资源(包括未分配周期性CSI-RS测量资源或仅分配非周期性CSI-RS测量资源)，则所述为所述终端分配周期性的CSI反馈资源时，还包括：Optionally, if the base station does not allocate periodic CSI-RS measurement resources (including no periodic CSI-RS measurement resources or only aperiodic CSI allocations) to the terminal before receiving the first message MSG1 sent by the terminal. -RS measurement resources), when the periodic CSI feedback resources are allocated to the terminal, the method further includes:

其中，所述CSI-RS测量资源用于测量所述终端与所述基站之间的信道状态；Wherein, the CSI-RS measurement resource is used to measure the channel state between the terminal and the base station;

在本申请实施例中，基站在终端的RCAH流程之前，关闭周期性CSI反馈资源的分配，使得MSG3中不会存在UCI的随路信息，这样基站可以根据MSG3中不包括UCI的比特数解调MSG3，完成终端的接入。提升了MSG3的解调效率和正确率，进而提升了终端接入的成功率，确保了业务的正常进行和数据的正常传输，可以为用户提供更好的业务体验。In the embodiment of the present application, 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.

请参见图3，图3为本申请实施例提供的另一种随机接入的方法的流程示意图；包括：Please refer to FIG. 3, which is a schematic flowchart of another random access method provided by an embodiment of the present application; including:

S301.基站在接收终端发送的第一消息MSG1之前，为所述终端分配周期性的信道状态指示参考信号CSI-RS测量资源以及周期性的CSI反馈资源。S301. 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.

S302.接收所述终端发送的MSG1，所述MSG1携带随机接入请求信息。S302. Receive the MSG1 sent by the terminal, where the MSG1 carries random access request information.

S303.发送第二消息MSG2给所述终端,所述MSG2携带随机接入响应信息。S303. Send a second message MSG2 to the terminal, where the MSG2 carries random access response information.

S304.接收所述终端发送的第三消息MSG3。S304. Receive the third message MSG3 sent by the terminal.

S305.根据所述MSG3中包括上行控制信息UCI的比特数以及根据所述MSG3中不包括所述UCI的比特数分别解调所述MSG3，完成所述终端的接入。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.

可选地，所述根据所述MSG3中包括上行控制信息UCI的比特数以及根据所述MSG3中不包括所述UCI的比特数分别解调所述MSG3，包括：Optionally, 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:

在本实施例中，通过双重解调的方式，可以确保MSG3的正确解调，利于提升终端接入的成功率，可以为用户提供更好的业务体验。In this embodiment, by means of double demodulation, 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.

请参照图4，为本申请实施例提供的一种基站的组成示意图；可包括：Please refer to FIG. 4 , which is a schematic diagram of the composition of a base station according to an embodiment of the present application; it may include:

处理单元100，用于在收发单元200接收终端发送的第一消息MSG1之前，关闭周期性信道状态指示CSI反馈资源的分配；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;

所述收发单元200，用于接收所述终端发送的MSG1，所述MSG1携带随机接入请求信息；发送第二消息MSG2给所述终端,所述MSG2携带随机接入响应信息；接收所述终端发送的第三消息MSG3；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;

所述处理单元100还用于根据所述MSG3中不包括上行控制信息UCI的比特数解调所述MSG3，完成所述终端的接入；为所述终端分配周期性的CSI反馈资源。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.

可选地，所述MSG1为小区切换请求或辅基站添加请求。Optionally, the MSG1 is a cell handover request or a secondary base station addition request.

可选地，所述处理单元具体用于：Optionally, the processing unit is specifically used for:

可选地，若所述基站在接收终端发送的第一消息MSG1之前，没有为所述终端分配周期性CSI-RS测量资源，则所述处理单元为所述终端分配周期性的CSI反馈资源时，还用于：Optionally, if 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:

可选地，所述CSI-RS测量资源用于测量所述终端与所述基站之间的信道状态；Optionally, the CSI-RS measurement resource is used to measure the channel state between the terminal and the base station;

在另一种可能的实现方式中，处理单元100，用于在收发单元接收终端发送的第一消息MSG1之前，为所述终端分配周期性的信道状态指示参考信号CSI-RS测量资源以及周期性的CSI反馈资源；In another possible implementation manner, 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;

所述处理单元100还用于根据所述MSG3中包括上行控制信息UCI的比特数以及根据所述MSG3中不包括所述UCI的比特数分别解调所述MSG3，完成所述终端的接入。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.

在该实施方式中，所述处理单元100具体用于：In this embodiment, the processing unit 100 is specifically used for:

该基站所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中基站的相关内容的描述，此处不做赘述。For concepts related to the technical solutions provided by the embodiments of the present application involved in the base station, please refer to the foregoing method or the description of the base station in other embodiments for explanations, detailed descriptions, and other steps, which will not be repeated here.

请参照图5，为本申请实施例提供的另一种基站的组成示意图；如图5所示，该基站可以包括处理器110、存储器120和总线130。处理器110和存储器120通过总线130连接，该存储器120用于存储指令，该处理器110用于执行该存储器120存储的指令，以实现如上图2或图3对应的方法中的步骤。Please refer to FIG. 5 , which 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.

进一步的，该基站还可以包括输入口140和输出口150。其中，处理器110、存储器120、输入口140和输出口150可以通过总线130相连。Further, 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 .

处理器110用于执行该存储器120存储的指令，以控制输入口140接收信号，并控制输出口150发送信号，完成上述方法中基站执行的步骤。其中，输入口140和输出口150可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为输入输出口。所述存储器120可以集成在所述处理器110中，也可以与所述处理器110分开设置。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 .

作为一种实现方式，输入口140和输出口150的功能可以考虑通过收发电路或者收发的专用芯片实现。处理器110可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。As an implementation manner, 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.

作为另一种实现方式，可以考虑使用通用计算机的方式来实现本申请实施例提供的基站。即将实现处理器110，输入口140和输出口150功能的程序代码存储在存储器中，通用处理器通过执行存储器中的代码来实现处理器110，输入口140和输出口150的功能。As another implementation manner, 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.

该基站所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中基站相关的描述，此处不做赘述。For concepts related to the technical solutions provided by the embodiments of the present application, for the concepts, explanations and detailed descriptions and other steps involved in the base station, please refer to the foregoing methods or descriptions related to the base station in other embodiments, which will not be repeated here.

本领域技术人员可以理解，为了便于说明，图5中仅示出了一个存储器和处理器。在实际的控制器中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本申请实施例对此不做限制。Those skilled in the art can understand that, 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.

应理解，在本申请实施例中，处理器可以是中央处理单元(Central Processing Unit，简称CPU)，该处理器还可以是其他通用处理器、数字信号处理器(Digital Signal Processing，简称DSP)、专用集成电路(Application Specific Integrated Circuit，简称ASIC)、现成可编程门阵列(Field－Programmable Gate Array，简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。It should be understood that, 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.

该存储器可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。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.

该总线除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线。In addition to the data bus, the bus may also include a power bus, a control bus, a status signal bus, and the like. However, for the sake of clarity, the various buses are labeled as buses in the figure.

在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。In the implementation process, 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.

根据本申请实施例提供的方法，本申请实施例还提供一种系统，其包括前述的基站和终端等。According to the method provided by the embodiment of the present application, the embodiment of the present application further provides a system, which includes the aforementioned base station, terminal, and the like.

在本申请的各种实施例中，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，而不应对本申请实施例的实施过程构成任何限定。In various embodiments of the present application, 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.

本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各种说明性逻辑块(illustrative logical block，简称ILB)和步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。Those of ordinary skill in the art can appreciate that the various illustrative logical blocks (ILBs) and steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. accomplish. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，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。In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, 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.

在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘)等。In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in 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.

以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A method for random access, comprising:

Before receiving the first message MSG1 sent by the terminal, the base station disables the allocation of periodic channel state indication CSI feedback resources;

receiving MSG1 sent by the terminal, where the MSG1 carries random access request information;

sending a second message MSG2 to the terminal, where the MSG2 carries random access response information;

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 method according to claim 1, wherein the MSG1 is a cell handover request or a secondary base station addition request.

The method according to claim 1, wherein before receiving the first message MSG1 sent by the terminal, the base station disables the allocation of periodic channel state indication CSI feedback resources, comprising:

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; or

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 method according to any one of claims 1-3, wherein if the base station does not allocate periodic CSI-RS measurement resources to the terminal before receiving the first message MSG1 sent by the terminal, the When allocating periodic CSI feedback resources to the terminal, the method further includes:

Periodic channel state indication reference signal CSI-RS measurement resources are allocated to the terminal.

The method according to claim 4, wherein the CSI-RS measurement resource is used to measure a 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 method for random access, comprising:

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 method according to claim 6, wherein the demodulation of the MSG3 according to the number of bits of the MSG3 including the uplink control information UCI and the number of bits of the MSG3 not including the UCI, respectively, comprises: :

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;

If they are the same, demodulate the MSG3 according to the number of bits of the uplink control information UCI included in the MSG3;

If not, demodulate the MSG3 according to the number of bits in the MSG3 that does not include the uplink control information UCI;

If 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 method according to claim 6 or 7, wherein the CSI-RS measurement resource is used to measure a channel state between the terminal and the base station;

A base station, characterized in that it includes:

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 base station according to claim 9, wherein the MSG1 is a cell handover request or a secondary base station addition request.

The base station according to claim 9, wherein the processing unit is specifically configured to:

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

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 according to any one of claims 9-11, wherein if the base station does not allocate periodic CSI-RS measurement resources for the terminal before receiving the first message MSG1 sent by the terminal, the When the processing unit allocates periodic CSI feedback resources to the terminal, it is further configured to:

The base station according to claim 12, wherein the CSI-RS measurement resource is used to measure a channel state between the terminal and the base station;

A base station, characterized in that it includes:

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 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 base station according to claim 14, wherein the processing unit is specifically configured to:

Judging whether the transmission time slot of the MSG3 is the same as the feedback time slot of the periodic CSI feedback resource;

The base station according to claim 14 or 15, wherein the CSI-RS measurement resource is used to measure a channel state between the terminal and the base station;

A base station, characterized in that it includes:

A processor, a memory and a bus, the processor and the memory are connected by a bus, wherein the memory is used for storing a set of program codes, the processor is used for calling the program codes stored in the memory, and executes the process as claimed in claim 1 The method of any one of -5.

A base station, characterized in that it includes:

A processor, a memory and a bus, the processor and the memory are connected by a bus, wherein the memory is used for storing a set of program codes, the processor is used for calling the program codes stored in the memory, and executes the process as claimed in claim 6 The method of any one of -8.

A computer-readable storage medium, comprising:

The computer-readable storage medium stores instructions that, when executed on a computer, implement the method of any one of claims 1-5.

A computer-readable storage medium, comprising:

The computer-readable storage medium stores instructions that, when executed on a computer, implement the method of any one of claims 6-8.