WO2019029701A1 - 随机接入方法、设备及系统 - Google Patents

随机接入方法、设备及系统 Download PDF

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Publication number
WO2019029701A1
WO2019029701A1 PCT/CN2018/099960 CN2018099960W WO2019029701A1 WO 2019029701 A1 WO2019029701 A1 WO 2019029701A1 CN 2018099960 W CN2018099960 W CN 2018099960W WO 2019029701 A1 WO2019029701 A1 WO 2019029701A1
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WIPO (PCT)
Prior art keywords
random access
terminal device
data
parameter
network device
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Application number
PCT/CN2018/099960
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English (en)
French (fr)
Inventor
娄崇
酉春华
黄曲芳
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18843440.1A priority Critical patent/EP3654724A4/en
Publication of WO2019029701A1 publication Critical patent/WO2019029701A1/zh
Priority to US16/786,614 priority patent/US20200187266A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers

Definitions

  • the embodiments of the present application relate to communication technologies, and in particular, to a random access method, device, and system.
  • the terminal device needs to obtain uplink time synchronization before transmitting uplink data.
  • the uplink time synchronization is obtained by the terminal device and the network device establishing a communication connection through a random access procedure (RAP).
  • RAP random access procedure
  • the existing random access procedure includes the following steps: the terminal device sends a random access preamble (Msg1) to the network device; the terminal device receives the random access response (Msg2) sent by the network device; and the terminal device sends a message 3 (Msg3) to the network device.
  • the terminal device receives the message 4 (Msg4) sent by the network device, that is, the contention resolution message.
  • the network device may use a Cell Radio Network Temporary Identifier (C-RNTI) on the SPCell (the primary cell of the CA scenario, the primary cell of the primary cell group of the DC scenario, and the primary and secondary cells of the secondary cell group).
  • C-RNTI Cell Radio Network Temporary Identifier
  • the scrambled Physical Downlink Control Channel (PDCCH) is used to indicate the terminal device that wins in the contention resolution.
  • TRP Transmission and Receiving Point
  • NR new radio
  • the embodiment of the present application provides a random access method, device, and system, which are used to implement a successful resolution of a random access of a terminal device or a successful random access for a multi-TRP scenario.
  • the embodiment of the present application provides a random access method, including: determining, by a terminal device, a receiving parameter of the first data; the terminal device receiving a contention resolution message by using the receiving parameter; and determining, by the terminal device, the random connection according to the contention resolution message
  • the incoming competition resolves successfully or determines the random access success.
  • the first data is at least one of the following data: SS-block, PBCH, CSI-RS, downlink control information of a random access response, and a random access response.
  • the random access method further includes: the terminal device receiving the configuration information sent by the network device.
  • the configuration information includes at least one random access configuration, and an association between the first data and the random access configuration.
  • the random access configuration may include random access time-frequency resources and/or a preamble index.
  • the random access method further includes: the terminal device sending the preamble to the network device on the random access time-frequency resource according to the random access configuration.
  • the preamble has a corresponding relationship with the preamble index.
  • at least one of the random access time-frequency resource and the preamble index corresponding to the transmitted preamble is included in the random access configuration.
  • the random access method further includes: the terminal device receiving the random access response sent by the network device.
  • the receiving parameter of the random access response is the same as the receiving parameter of the foregoing first data, and/or the receiving parameter of the downlink control information of the random access response is the same as the receiving parameter of the foregoing first data.
  • the embodiment of the present application provides a random access method, including: a network device receiving a preamble sent by a terminal device on a random access time-frequency resource; and determining, by the network device, a random access time-frequency resource and/or a preamble,
  • the sending parameter of the first data is sent by the network device to the terminal device by sending the parameter, where the contention resolution message is used to indicate that the terminal device determines that the contention resolution of the random access is successful or determines that the random access is successful.
  • the first data is at least one of the following data: SS-block, PBCH, CSI-RS, downlink control information of the random access response, and random access response.
  • the determining, by the network device, the sending parameter of the first data according to the random access time-frequency resource and/or the preamble the network device determining, according to the preamble and/or the random access time-frequency resource, the random access configuration, where The preamble has a corresponding relationship with the preamble index; the network device determines the sending parameter of the first data according to the random access configuration and the association between the first data and the random access configuration.
  • the random access method further includes: the network device sending the configuration information to the terminal device.
  • the configuration information includes at least one random access configuration, and an association between the first data and the random access configuration.
  • the random access configuration may include random access time-frequency resources and/or a preamble index.
  • the random access method further includes: the network device sending the random access response to the terminal device.
  • the sending parameter of the random access response is the same as the sending parameter of the foregoing first data, and/or the sending parameter of the downlink control information of the random access response is the same as the sending parameter of the foregoing first data.
  • an embodiment of the present application provides a random access device, including: a determining module and a receiving module.
  • the determining module is configured to determine a receiving parameter of the first data
  • the receiving module is configured to receive a contention resolution message by receiving the parameter
  • the determining module is further configured to determine, according to the contention resolution message, that the contention resolution of the random access is successful or determine the random access. success.
  • the first data is at least one of the following data: SS-block, PBCH, CSI-RS, downlink control information of a random access response, and a random access response.
  • the receiving module is further configured to: before receiving the contention resolution message by receiving the parameter, receiving the configuration information sent by the network device.
  • the configuration information includes at least one random access configuration, and an association of the first data with the random access configuration.
  • the random access configuration may include random access time-frequency resources and/or a preamble index.
  • the random access device further includes: a sending module, configured to send a preamble to the network device on the random access time-frequency resource according to the random access configuration before the receiving module receives the contention resolution message by receiving the parameter .
  • the preamble has a corresponding relationship with the preamble index.
  • the receiving module is further configured to: before receiving the contention resolution message by receiving the parameter, receiving the random access response sent by the network device.
  • the receiving parameter of the random access response is the same as the receiving parameter of the foregoing first data, and/or the receiving parameter of the downlink control information of the random access response is the same as the receiving parameter of the foregoing first data.
  • the embodiment of the present application provides a random access device, including: a receiving module, configured to receive a preamble sent by a terminal device on a random access time-frequency resource; and a determining module, configured to use the random access time-frequency resource And/or a preamble, determining a sending parameter of the first data; the sending module, configured to send, by using the sending parameter, a contention resolution message to the terminal device, where the contention resolution message is used to indicate that the terminal device determines that the contention resolution of the random access is successful or determines a random The access was successful.
  • the first data is at least one of the following data: SS-block, PBCH, CSI-RS, downlink control information of a random access response, and a random access response.
  • the determining module is specifically configured to: determine, according to the preamble and/or the random access time-frequency resource, a random access configuration, where the preamble and the preamble index have a corresponding relationship; according to the random access configuration and the first data and the random The association of the access configuration determines the sending parameters of the first data.
  • the sending module is further configured to send the configuration information to the terminal device before sending the contention resolution message to the terminal device by sending the parameter.
  • the configuration information includes at least one random access configuration, and an association between the first data and the random access configuration.
  • the random access configuration may include random access time-frequency resources and/or a preamble index.
  • the sending module is further configured to: before sending the contention resolution message to the terminal device by sending the parameter, sending the random access response to the terminal device.
  • the sending parameter of the random access response is the same as the sending parameter of the first data, and/or the sending parameter of the downlink control information of the random access response is the same as the sending parameter of the first data.
  • the embodiment of the present application provides a terminal device, including: a processor, configured to determine a receiving parameter of a first data, and send an indication to a transceiver; and a transceiver, configured to pass the indication according to the processor
  • the receiving parameter is configured to receive a contention resolution message.
  • the processor is further configured to determine, according to the contention resolution message, that the contention resolution of the random access is successful or determine that the random access is successful.
  • the first data is at least one of the following data: SS-block, PBCH, CSI-RS, downlink control information of a random access response, and a random access response.
  • the transceiver is further configured to: before receiving the contention resolution message by using the receiving parameter, receive configuration information sent by the network device, where the configuration information includes at least one random access configuration, and The association of the first data with the random access configuration, the random access configuration includes a random access time-frequency resource and/or a preamble index.
  • the transceiver is further configured to send a preamble to the network device on the random access time-frequency resource according to the random access configuration before receiving the contention resolution message by using the receiving parameter,
  • the preamble has a corresponding relationship with the preamble index.
  • the transceiver is further configured to: before receiving the contention resolution message by using the receiving parameter, receive a random access response sent by the network device, where the receiving parameter of the random access response is The receiving parameters of the first data are the same, and/or the receiving parameters of the downlink control information of the random access response are the same as the receiving parameters of the first data.
  • the embodiment of the present application provides a network device, including: a transceiver, configured to receive a preamble sent by a terminal device on a random access time-frequency resource; and a processor, configured to use the random access time-frequency resource according to the random access time-frequency resource And/or the preamble, determining a sending parameter of the first data, sending an indication to the transceiver; the transceiver, further configured to send, by using the sending parameter, a contention resolution message to the transceiver according to the indication of the processor And the contention resolution message is used to indicate that the terminal device determines that the contention resolution of the random access is successful or determines that the random access is successful.
  • the first data is at least one of the following data: SS-block, PBCH, CSI-RS, downlink control information of a random access response, and a random access response.
  • the processor is specifically configured to: determine, according to the preamble and/or the random access time-frequency resource, a random access configuration, where the preamble and the preamble index have a corresponding relationship; according to the random The access configuration and the association of the first data with the random access configuration determine a transmission parameter of the first data.
  • the transceiver is further configured to: before sending the contention resolution message to the terminal device by using the sending parameter, send configuration information to the terminal device, where the configuration information includes at least one random access configuration.
  • the first data is associated with the random access configuration, and the random access configuration includes a random access time-frequency resource and/or a preamble index.
  • the transceiver is further configured to: before sending the contention resolution message to the terminal device by using the sending parameter, sending a random access response to the terminal device, where the random access response is
  • the sending parameter is the same as the sending parameter of the first data, and/or the sending parameter of the downlink control information of the random access response is the same as the sending parameter of the first data.
  • the foregoing random access configuration further includes at least one of the following:
  • the receiving parameter includes at least one of the following parameters: an angle of arrival, a main angle of arrival, an average angle of arrival, an angular power spectrum of the angle of arrival, an average angle of departure, an angular power spectrum of the exit angle, a transmission and reception channel association, Transmission receive beamforming and spatial channel correlation.
  • the foregoing sending parameter includes at least one of the following parameters: an exit angle, an average departure angle, an angular power spectrum of the exit angle, a transmission receive channel association, a transmission receive beamforming, and a spatial channel association.
  • the contention resolution message is a downlink control channel that carries the identifier of the terminal device.
  • an embodiment of the present application provides a terminal device, including: a processor and a memory, and a computer program stored on the memory for execution by the processor, where the processor executes the computer program to implement, for example, The method of the first aspect.
  • an embodiment of the present application provides a network device, including: a processor and a memory, and a computer program stored on the memory for execution by the processor, where the processor executes the computer program to implement, for example, The method of the second aspect.
  • the embodiment of the present application provides a terminal device, including at least one processing element (or chip) for performing the method of the above first aspect.
  • the embodiment of the present application provides a network device, including at least one processing element (or chip) for performing the method of the above second aspect.
  • an embodiment of the present application provides a program for performing the method of the above first aspect when executed by a processor of a terminal device.
  • the embodiment of the present application provides a program for performing the method of the above second aspect when executed by a processor of a network device.
  • the embodiment of the present application provides a computer program product, including the program of the eleventh aspect.
  • the embodiment of the present application provides a computer program product, including the program of the twelfth aspect.
  • the embodiment of the present application provides a computer readable storage medium, which enables a terminal device to perform the method of the first aspect when the instructions in the computer readable storage medium are executed by a processor of the terminal device.
  • the embodiment of the present application provides a computer readable storage medium, which enables a network device to perform the method of the second aspect when the instructions in the computer readable storage medium are executed by a processor of the network device.
  • the embodiment of the present application provides a communication system, including the terminal device according to the fifth aspect, and the network device according to the sixth aspect.
  • An embodiment of the present application provides a random access method, device, and system, where a terminal device receives a contention resolution message by using a first data receiving parameter, and determines, according to the contention resolution message, that a random access competition resolution is successful or determines a randomness.
  • the access is successful, wherein the first data is at least one of the following data: an SS-block, a CSI-RS, a downlink control information of a random access response, and a random access response, so that the terminal device can be in a multi-TRP scenario. Determining whether the received contention resolution message is a contention resolution message corresponding to the current random access. On the one hand, the terminal device does not continue to perform random access after receiving the contention resolution message corresponding to the current random access.
  • the random access preamble is not sent to the network device in the random access process; on the other hand, the terminal device continues to perform random access before receiving the contention resolution message corresponding to the current random access, for example, waiting The current random access corresponding contention resolution message or resending the random access preamble to the network device, targeting multiple TRs
  • the contention of the random access of the terminal device is successfully solved or the random access is successful.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 3 is a signaling interaction diagram of a random access method according to another embodiment of the present disclosure.
  • FIG. 4 is an application example of a random access method according to an embodiment of the present application.
  • FIG. 5 is a signaling interaction diagram of a random access method according to another embodiment of the present disclosure.
  • FIG. 6 is an application example of a random access method according to another embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a random access apparatus according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a random access device according to another embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • the communication system includes a network device and at least one terminal device, where the terminal device is in the coverage of the network device and communicates with the network device to implement the technical solutions provided in the following embodiments of the present application.
  • the communication system of this embodiment can be applied to a multi-TRP scenario.
  • the embodiments of the present application describe various embodiments in combination with a network device and a terminal device, and the network device and the terminal device can work in a licensed band or an unlicensed band, where:
  • a terminal device may also be called a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user. Agent or user device.
  • the terminal device may be a station (STATION, ST) in a Wireless Local Area Networks (WLAN), and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, or a wireless local loop (Wireless Local).
  • WLAN Wireless Local Area Networks
  • SIP Session Initiation Protocol
  • PDA Personal Digital Assistant
  • handheld devices with wireless communication capabilities computing devices or other processing devices connected to wireless modems
  • in-vehicle devices wearable devices
  • next-generation communication systems For example, a terminal device in the fifth-generation (5G) network or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, a terminal device in the NR system, and the like.
  • 5G fifth-generation
  • PLMN Public Land Mobile Network
  • the terminal device may also be a wearable device.
  • a wearable device which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.
  • the network device is also referred to as a radio access network (RAN) device, and is a device that accesses the terminal device to the wireless network, and may be an evolved base station in Long Term Evolution (LTE).
  • LTE Long Term Evolution
  • the network device provides a service for the cell
  • the terminal device communicates with the network device by using a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell.
  • the cell may be a cell corresponding to a network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here may include: a metro cell, a micro cell, a pico cell, a femto cell, etc., and the small cell has a small coverage and a low transmission power. Suitable for providing high-speed data transmission services.
  • the random access process is usually triggered by one of seven types of events:
  • the terminal device in the RRC_CONNECTED state is a terminal device that maintains an RRC connection between the terminal device and the access network device and a connection between the access network device and the core network device.
  • the terminal device in the RRC_INACTIVE state is a terminal device that maintains the connection between the access network device and the core network device, and has no RRC connection between the terminal device and the access network device.
  • the terminal device in the RRC_IDLE state is a terminal device that has no connection between the access network device and the core network device and an RRC connection between the terminalless device and the access network device.
  • the random access process includes:
  • a beam it can be understood as a spatial resource, which can refer to a transmission or reception precoding vector with energy transmission directivity.
  • the transmitting or receiving precoding vector can be identified by index information.
  • the energy transmission directivity may refer to precoding processing of the signal to be transmitted by the precoding vector, and the signal subjected to the precoding has a certain spatial directivity, and the precoding process is performed after receiving the precoding vector.
  • the signal has better received power, such as meeting the received demodulation signal to noise ratio, etc.; the energy transmission directivity may also mean that the same signal transmitted from different spatial locations is received by the precoding vector to have different received power.
  • the same communication device such as a terminal device or a network device, may have different precoding vectors, and different communication devices may also have different precoding vectors, that is, corresponding to different beams.
  • one communication device can use one or more of a plurality of different precoding vectors at the same time, that is, one beam or multiple beams can be formed at the same time.
  • the beam information may be identified by the index information.
  • the index information may correspond to a resource identifier (identity, ID) of the terminal device.
  • the index information may correspond to an ID or an index or a resource of a channel state information reference signal (CSI-RS), or may be a corresponding uplink sounding reference signal (Sounding Reference Signal). , SRS) ID or resource.
  • the index information may also be index information that is displayed or implicitly carried by a beam-bearing signal or channel.
  • the index information includes, but is not limited to, a synchronization signal sent by a beam or a broadcast channel indicating the Index information of the beam.
  • the resource may be at least one of the following: a time domain, a frequency domain, and a code domain (sequence).
  • FIG. 2 is a flowchart of a random access method according to an embodiment of the present disclosure. As shown in FIG. 2, the method in this embodiment includes:
  • the terminal device determines a receiving parameter of the first data.
  • the first data may be at least one of the following data: a Synchronization Signal Block (SS-block), a Physical Broadcast Channel (PBCH), a CSI-RS, and a downlink control of a random access response. Information and random access responses, etc.
  • the CSI-RS is used for channel estimation or beam management or cell mobility measurement;
  • the SS-block may include at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS). .
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • the SS-block or the CSI-RS may be transmitted by means of a beam.
  • the receiving parameter may be an antenna parameter, or a receiving parameter of a beam, or a spatial receiving parameter.
  • the first data may be the data received in the random access process, or may be the data received before the random access process is triggered, which is not limited in this embodiment of the present application.
  • the receiving parameter of the first data is a parameter used when the terminal device receives the first data.
  • the first data is associated with the random access configuration determined by the terminal device.
  • the receiving parameters corresponding to different SS-blocks may be different, and the terminal device does not need to determine the receiving parameters of all the SS-blocks, and only needs to determine the random access used when initiating the random access.
  • the receiving parameters of the SS-block associated with the frequency resource and/or the preamble index may be used.
  • the receiving parameters corresponding to different CSI-RSs may be different, and the terminal device does not need to determine the receiving parameters of all CSI-RSs, and only needs to determine the random access used to initiate the random access.
  • the receiving parameters of the CSI-RS associated with the time-frequency resource and/or the preamble index may be.
  • the receiving parameters corresponding to different PBCHs may be different, and the terminal device does not need to determine the receiving parameters of all the PBCHs, and only needs to determine the random access time-frequency resources and/or preambles used to initiate the random access.
  • the receiving parameters of the PBCH associated with the index may be.
  • the terminal device can distinguish different SS-blocks according to the identifier of the SS-block.
  • the terminal device can distinguish different CSI-RSs according to the configuration identifier of the CSI-RS.
  • the terminal device Before triggering the random access procedure, or during the random access procedure, the terminal device determines the receiving parameters of the first data.
  • the terminal device stores the receiving parameter of the first data.
  • the receiving parameter may include at least one of the following parameters: angle of arrival (AoA), main arrival angle (Dominant AoA), average angle of arrival (average AoA), angular power spectrum of the angle of arrival (Power) Angular Spectrum, PAS), angle of direction (AOD), angular power spectrum of the exit angle, transmit/receive channel correlation, transmit/receive beamforming, and spatial channel correlation (spatial channel correlation) and the like.
  • the terminal device receives the contention resolution message by using the foregoing receiving parameter.
  • the terminal device receives the contention resolution message from the network device by using the received parameter of the first data determined above.
  • the contention resolution message is sent by the network device to the terminal device.
  • the contention resolution message may be a downlink control channel carrying the identifier of the terminal device, or the contention resolution message carries part or all of the information of the message 3 sent by the terminal device, to specify that the competition in the random access competition is won.
  • Terminal Equipment Illustratively, the contention resolution message is a downlink control channel of the terminal device that scrambles the Cyclic Redundancy Check (CRC) bit.
  • CRC Cyclic Redundancy Check
  • the downlink control channel is used for transmitting a downlink assignment and/or an uplink grant.
  • the downlink control channel may be a PDCCH.
  • the downlink allocation is used to indicate the transmission resource of the downlink data
  • the uplink grant is used to allocate the transmission resource of the uplink data.
  • the terminal device receives the downlink data according to the downlink allocation, and sends a feedback for the downlink data to the network device, where the feedback is used to notify the network device whether the downlink data is successfully decoded by the terminal device; if the contention is resolved
  • the message is an uplink grant, and the terminal device sends uplink data to the network device according to the uplink grant. If the contention resolution message is part or all of the information of the message 3 sent by the terminal device, the terminal device sends a feedback to the network device for the contention resolution message, where the feedback is used to notify the network device that the contention resolution message is successfully decoded by the terminal device; When the decoding is unsuccessful, the terminal device does not need to send feedback to the network device.
  • the identifier of the terminal device refers to the identifier of the terminal device in the cell.
  • the identifier of the terminal device is a cell radio network temporary identifier (C-RNTI) of the cell.
  • C-RNTI cell radio network temporary identifier
  • the terminal device determines, according to the contention resolution message, that the contention resolution of the random access is successful or determines that the random access is successful.
  • the terminal device determines that the contention of the terminal device is carried in the contention resolution message, it is considered that the contention resolution of the random access is successful or the random access is determined to be successful; or, if the terminal device determines that the contention resolution message carries the message sent by the terminal device, For part or all of the information of 3, it is considered that the contention of the random access is successfully solved or the random access is determined to be successful.
  • the terminal device receives the contention resolution message by using the receiving parameter of the first data, and determines that the contention resolution of the random access is successful or determines that the random access is successful according to the contention resolution message, where the first data is the following data. At least one of the following: the SS-block, the CSI-RS, the downlink control information of the random access response, and the random access response, so that the terminal device can specifically distinguish whether the received contention resolution message is The contention resolution message corresponding to the current random access, on the one hand, the terminal device does not continue to perform random access after receiving the contention resolution message corresponding to the current random access, that is, no random transmission is sent in the random access process.
  • the access is forwarded to the network device; on the other hand, the terminal device continues to perform random access before receiving the contention resolution message corresponding to the current random access, for example, waiting for the contention resolution message corresponding to the current random access or resending the random access
  • the access is forwarded to the network device, and the competition for the random access of the terminal device is solved for multiple TRP scenarios. Or a random access success.
  • the following describes the interaction between the network device and the terminal device.
  • FIG. 3 is a signaling interaction diagram of a random access method according to another embodiment of the present disclosure. As shown in FIG. 3, the random access method includes the following steps:
  • the terminal device receives configuration information sent by the network device.
  • the configuration information includes at least one random access configuration, and an association between the first data and the random access configuration.
  • the random access configuration may include random access time-frequency resources and/or a preamble index.
  • the number of random access time-frequency resources and/or the preamble index may be one or more, which is not limited in this application.
  • This step is an optional step, and S301 is executed only when the first random access or when the configuration information is updated and then re-random access.
  • the configuration information includes a random access configuration 1 and a random access configuration 2, and an association 1 between the random access configuration 1 and the SS-block 1, and an association 2 between the random access configuration 2 and the SS-block 2.
  • the terminal device determines to perform random access according to the random access configuration 1
  • the terminal device determines that the SS-block 1 associated with the random access configuration 1 is the first data referred to herein.
  • the terminal device determines the receiving parameter of the SS-block1.
  • the random access configuration may further include at least one of: a root sequence index (rootSequenceIndex) for generating a preamble sequence, a high speed flag (highSpeedFlag) for generating a selection preamble, a preamble set or a preamble number, and a leading power rise. Parameters; initial received target power of the preamble; PreambleTransMax of the preamble; random access response window length (ra-ResponseWindowSize); Medium Access Control (MAC) contention resolution timer, and so on.
  • rootSequenceIndex for generating a preamble sequence
  • highSpeedFlag high speed flag
  • Parameters initial received target power of the preamble
  • PreambleTransMax of the preamble PreambleTransMax of the preamble
  • random access response window length ra-ResponseWindowSize
  • MAC Medium Access Control
  • the terminal device sends a preamble to the network device on the random access time-frequency resource according to the random access configuration included in the configuration information.
  • the preamble has a correspondence with the preamble index.
  • the preamble is for example a leader sequence.
  • the preamble index available to the terminal device includes: the preamble index 1, the preamble index 2, and the preamble index 3, the preamble index corresponding to the preamble sent by the terminal device is the preamble index 1, the preamble index 2, and the preamble index 3.
  • the range, that is, the preamble corresponding to the preamble sent by the terminal device is one of the above three preamble indexes.
  • RA-RNTI Random Access Radio Network Temporary Identifier
  • the foregoing conditions may be predefined, or configured by higher layer signaling, or otherwise obtained or determined, which is not limited in this application.
  • the random access configuration may include random access time-frequency resources and/or a preamble index, and the steps may be understood as follows:
  • the step is specifically: the terminal device sends the preamble to the network device on any random access time-frequency resource included in the random access configuration.
  • the preamble is a common preamble, that is, the preamble does not need to be associated with the first data, and can be obtained by other configurations.
  • the step is specifically: the terminal device sends the preamble corresponding to any preamble index included in the random access configuration to the network device on the random access time-frequency resource.
  • the random access time-frequency resource is a common random access time-frequency resource, that is, the random access time-frequency resource does not need to be associated with the first data, and can be obtained through other configurations.
  • the step is specifically: the terminal device sends the random access to the network device on any random access time-frequency resource included in the random access configuration. Configure the preamble corresponding to any of the leading indexes included.
  • the configuration information includes two random access configurations, namely, a random access configuration 1 and a random access configuration 2, wherein the random access configuration 1 is associated with SS-block 1 and the random access configuration 2 is associated with SS-block 2.
  • the terminal device selects SS-block 2 for random access according to the downlink measurement, which is embodied by: the terminal device performs random access by using the random access configuration associated with SS-block2.
  • the terminal device sends a preamble to the network device by using any random access time-frequency resource included in the random access configuration associated with the SS-block2.
  • the network device receives a preamble sent by the terminal device on the random access time-frequency resource.
  • the network device determines, according to the random access time-frequency resource and/or the preamble, a sending parameter of the first data.
  • the step includes: determining, by the network device, the random access configuration according to the preamble sent by the terminal device and/or the random access time-frequency resource used by the preamble, where the preamble has a corresponding relationship with the preamble index; And determining, according to the determined random access configuration and the association between the first data and the random access configuration, the sending parameter of the first data.
  • the random access configuration may be determined according to the two.
  • the configuration information includes a random access configuration and an association between the first data and the random access configuration, and therefore, the network device may associate with the determined random access configuration and the first data and the random access configuration. Determining the first data to determine the transmission parameters of the first data.
  • the sending parameter may include at least one of the following parameters: an exit angle, an average exit angle, an angular power spectrum of the exit angle, a transmission receive channel association, a transmission receive beamforming, a spatial channel association, and the like.
  • the network device sends a random access response to the terminal device.
  • the sending parameter of the random access response is the same as the sending parameter of the first data, and/or the sending parameter of the downlink control information of the random access response is the same as the sending parameter of the first data.
  • the terminal device receives the random access response sent by the network device.
  • the receiving parameter of the random access response is the same as the receiving parameter of the first data, and/or the receiving parameter of the downlink control information of the random access response is the same as the receiving parameter of the first data.
  • the terminal device receives the random access response of the network device for the preamble through a receiving parameter of the SS-block or the CSI-RS.
  • the terminal device monitors the PDCCH according to the corresponding RA-RNTI within the random access response time window to receive a random access response for the preamble. If the terminal device does not receive the random access response of the network device reply within the random access response time window, the terminal device considers that the random access procedure fails.
  • the random access response time window starts from the subframe in which the preamble is transmitted (if the preamble spans multiple subframes in the time domain, then the last subframe is calculated) + 3 subframes, and the random access response time continues
  • the window size is a sub-frame.
  • the random access response includes an uplink grant.
  • the random access response further includes an uplink timing advance.
  • Uplink authorization includes physical resources.
  • the uplink authorization further includes at least one of the following: a Modulation and Code Scheme (MCS), a channel quality information (CQI) request, and the like.
  • MCS Modulation and Code Scheme
  • CQI channel quality information
  • the random access response may also be used to trigger the terminal device to receive the CSI-RS or measure the CSI-RS.
  • the terminal device sends the second data to the network device.
  • the second data includes a cell identifier of the terminal device.
  • the second data may be specifically data such as message 3, including message 3 itself.
  • the second data may also be different depending on the state of the terminal device and the application scenario.
  • the terminal device may send the second data to the network device according to the uplink grant; or the terminal device may send the second data to the network device according to the uplink grant and the uplink timing advance.
  • the second data may further include a beam identifier.
  • the terminal device performs beam measurement for the CSI-RS according to the random access response, determines a beam with the best or better measurement result, and carries the beam identifier of the beam in the second data.
  • the beam identifier may be a time index, which is indicated by the PBCH in the SS-block.
  • the beam identifier may be a CSI-RS configuration identifier, such as an index.
  • the terminal device determines a receiving parameter of the first data.
  • This step is the same as S201, and will not be described here.
  • the network device sends a contention resolution message to the terminal device by using the sending parameter of the first data, where the contention resolution message is used to indicate that the terminal device determines that the contention resolution of the random access is successful or determines that the random access is successful.
  • the terminal device receives the contention resolution message by using the receiving parameter of the first data.
  • the terminal receives the message through the non-first data receiving parameter, for example, the message is a PDCCH carrying the C-RNTI, and the terminal device cannot use the message as a basis for determining a successful contention resolution or random access success.
  • This step is the same as S202, and will not be described here.
  • the terminal device determines, according to the contention resolution message, that the contention resolution of the random access is successful or determines that the random access is successful.
  • This step is the same as S203, and will not be described here.
  • the present application is not limited to the above execution order. It can be understood by those skilled in the art that, for S303, the step may be performed after S302 and before S307; for S306, the step may be performed before S307, and the specific execution sequence is not limited herein.
  • the random access method may further include: the terminal device receiving the indication information sent by the network device, where the indication information is used to trigger the terminal device to perform random access.
  • the indication information is carried by physical layer signaling.
  • the physical layer signaling is, for example, a PDCCH order.
  • the indication information includes at least one first identifier, where the at least one first identifier is used to indicate that the terminal device determines the random access time-frequency resource.
  • the first identifier can be a time index.
  • the first identifier is also used to identify the SS-block and/or the CSI-RS. Specifically, the first identifier is used to identify the CSI-RS, and the first identifier is used to identify the configuration of the CSI-RS.
  • the configuration of the CSI-RS includes a time-frequency resource of the CSI-RS. Alternatively, the configuration of the CSI-RS may further include at least one of the following: a sequence and a port of the CSI-RS, and the like.
  • the indication information may further include a second identifier, where the second identifier is used to indicate that the terminal device determines a receiving parameter that receives the random access response, where the second identifier may be specifically a configuration identifier of the CSI-RS.
  • the CSI-RS configuration includes time-frequency resources of the CSI-RS.
  • the foregoing receiving parameters may be received beams or antenna parameters associated with the CSI-RS.
  • FIG. 4 The application of the random access method provided by the above embodiment is illustrated by FIG. 4 below.
  • a cell under one base station includes two TRPs, that is, TRP1 and TRP2, and the terminal device and TRP2 are performing data transmission, wherein the primary synchronization signal and/or included in the SS-block sent by TRP1 and TRP2 are The secondary sync signal is the same.
  • the terminal device receives the indication information that is sent by the base station through the TRP2, and the indication information is used to trigger the terminal device to perform the random access, so as to obtain the uplink time advancement of the terminal device-TRP1, where the indication information may be, for example, a PDCCH order.
  • the terminal device sends a preamble to the TRP1; the terminal device receives the random access response from the TRP1; the terminal device sends the second data to the TRP1; if it is the contention-based random access, the terminal device receives the message sent by the base station from the TRP1, for example,
  • the message is a PDCCH carrying a C-RNTI.
  • the message is a contention resolution message, and the terminal device determines, according to the contention resolution message, that the contention resolution of the random access is successful or determines that the random access is successful.
  • the terminal device When the terminal device receives the message sent by the base station through the TRP2, for example, the message is a PDCCH carrying the C-RNTI, the terminal device cannot use the message as a basis for determining the success of the contention resolution or the success of the random access.
  • the above embodiment is a contention based random access.
  • the preamble is dedicated to a certain terminal device, so there is no competition; and since the terminal device already has a unique identifier in the access cell, such as C-RNTI, the network device is not needed. Assign an identifier to the terminal device. Therefore, the non-contention based random access only includes: the terminal device sends the preamble to the network device, and the terminal device receives the random access response sent by the network device.
  • the terminal device that performs network access through non-contention based random access is originally in the RRC_CONNECTED state; and (2) the C-RNTI used by the terminal device in the target cell is in the RRC connection configuration.
  • the mobile control information (MobilityControlInfo) is configured by the identity of the new terminal device (UE-Identity).
  • FIG. 5 is a signaling interaction diagram of a random access method according to another embodiment of the present disclosure.
  • the random access method includes:
  • the terminal device receives the indication information sent by the network device.
  • the indication information is used to trigger the terminal device to perform random access.
  • the indication information includes at least one first identifier, where the at least one first identifier is used to instruct the terminal device to determine a random access time-frequency resource.
  • the first identification may be a time index indicated by a physical broadcast channel of the SS-block.
  • the indication information is carried by physical layer signaling.
  • the physical layer signaling is, for example, a PDCCH order.
  • This step is an optional step.
  • the first identifier is also used to identify the SS-block and/or the CSI-RS. Specifically, the first identifier is used to identify the CSI-RS, and the first identifier is used to identify the configuration of the CSI-RS.
  • the configuration of the CSI-RS includes a time-frequency resource of the CSI-RS. Alternatively, the configuration of the CSI-RS may further include at least one of the following: a sequence and a port of the CSI-RS, and the like.
  • the terminal device sends a preamble to the network device on the random access time-frequency resource associated with the first identifier.
  • the network device determines a sending parameter of the random access response.
  • the sending parameter of the random access response is the same as the sending parameter of the CSI-RS on the at least one random access time-frequency resource.
  • the random access response corresponds to a preamble received by the network device.
  • the transmission parameter of the random access response may be specifically one or more of a departure angle, an average departure angle, an angular power spectrum of the departure angle, a transmission reception channel association, a transmission reception beamforming, and a spatial channel association.
  • the terminal device receives the random access response sent by the network device according to the second identifier.
  • the indication information may further include a second identifier, where the second identifier is used to indicate that the terminal device determines a receiving parameter that receives the random access response, where the second identifier may be specifically a configuration identifier of the CSI-RS.
  • the CSI-RS configuration includes time-frequency resources of the CSI-RS.
  • the receiving parameter of the random access response may be a receiving beam or an antenna parameter associated with the CSI-RS.
  • the terminal device determines, according to the random access response, that the random access is successful.
  • the terminal device determines a random access time-frequency resource according to the first identifier included in the indication information, and sends a preamble to the network device on the random access time-frequency resource; correspondingly, after receiving the preamble, the network device Determining, by the terminal device, a receiving parameter of the random access response according to the second identifier included in the indication information, and receiving, by using the receiving parameter, a random access response sent by the network device, thereby The terminal device determines that the random access is successful in the multiple TRP scenario.
  • the indication information is sent through the TRP2, and is used to notify the terminal device to send a preamble to the TRP1; then, the terminal device receives the random access response from the TRP1.
  • FIG. 6 The application of the random access method provided by the embodiment shown in FIG. 5 is illustrated by FIG. 6 below.
  • one cell under one base station includes two TRPs, that is, TRP1 and TRP2, and the terminal device and TRP2 are performing data transmission, wherein the primary synchronization signal and/or included in the SS-block sent by TRP1 and TRP2 are The secondary sync signal is the same.
  • the terminal device receives the indication information that the base station sends in the form of a beam by using the TRP2, and the indication information is used to trigger the terminal device to perform random access, so as to obtain the uplink time advance of the terminal device-TRP1, and the indication information may be carried in the PDCCH order.
  • the indication information is further used to indicate that the terminal device performs random access on a random access time-frequency resource (ie, an alternate beam) corresponding to the SS-block 3, where the TRP1 has multiple SS-blocks, including the SS-block1. , SS-block2, SS-block3, SS-block4, and SS-block5. Further, the indication information may further include a receiving parameter corresponding to the CSI-RS receiving the random access response.
  • a random access time-frequency resource ie, an alternate beam
  • FIG. 7 is a schematic structural diagram of a random access apparatus according to an embodiment of the present application.
  • the random access device 70 includes a determining module 71 and a receiving module 72. among them,
  • the determining module 71 is configured to determine a receiving parameter of the first data.
  • the receiving module 72 is configured to receive a contention resolution message by receiving a parameter.
  • the determining module 71 is further configured to determine, according to the contention resolution message, that the contention resolution of the random access is successful or determine that the random access is successful.
  • the first data is at least one of the following data: SS-block, PBCH, CSI-RS, downlink control information of a random access response, and a random access response.
  • the receiving parameter may include at least one of the following parameters: an angle of arrival, a primary angle of arrival, an average angle of arrival, an angular power spectrum of the angle of arrival, an average angle of departure, an angular power spectrum of the exit angle, a transmission receive channel association, Transmission receive beamforming and spatial channel correlation.
  • the contention resolution message may be a downlink control channel carrying an identifier of the terminal device.
  • the receiving module 72 is further configured to: receive the configuration information sent by the network device, before receiving the contention resolution message by receiving the parameter.
  • the configuration information includes at least one random access configuration, and an association of the first data with the random access configuration.
  • the random access configuration may include random access time-frequency resources and/or a preamble index, and the like.
  • the random access device 70 may further include: a sending module 73, configured to: on the random access time-frequency resource, according to the random access configuration, before the receiving module 72 receives the contention resolution message by receiving the parameter, Send a preamble to the network device.
  • the preamble has a corresponding relationship with the preamble index.
  • the receiving module 72 is further configured to: before receiving the contention resolution message by using the receiving parameter, receive a random access response sent by the network device.
  • the receiving parameter of the random access response is the same as the receiving parameter of the first data, and/or the receiving parameter of the downlink control information of the random access response is the same as the receiving parameter of the first data.
  • the device described in this embodiment may be used to implement the technical solution of the terminal device or its internal chip in the foregoing method embodiments, and the implementation principle and the technical effect are similar.
  • the function of each module may refer to the corresponding method embodiment. The description is not repeated here.
  • FIG. 8 is a schematic structural diagram of a random access device according to another embodiment of the present disclosure.
  • the random access device 80 includes a receiving module 81, a determining module 82, and a transmitting module 83. among them,
  • the receiving module 81 is configured to receive a preamble sent by the terminal device on a random access time-frequency resource.
  • the determining module 82 is configured to determine a sending parameter of the first data according to the random access time-frequency resource and/or the preamble.
  • the sending module 83 is configured to send a contention resolution message to the terminal device by sending a parameter.
  • the contention resolution message is used to indicate that the terminal device determines that the contention resolution of the random access is successful or determines that the random access is successful.
  • the first data may be at least one of the following data: SS-block, PBCH, CSI-RS, downlink control information of a random access response, and a random access response.
  • the determining module 82 is specifically configured to: determine, according to the preamble and/or the random access time-frequency resource, a random access configuration, where the preamble and the preamble index have a corresponding relationship; according to the random access configuration and the first data and The association of the random access configuration determines the transmission parameters of the first data.
  • the transmission parameters may include at least one of the following parameters: departure angle, average departure angle, angular power spectrum of the departure angle, transmission receive channel association, transmission receive beamforming, spatial channel association, and the like.
  • the contention resolution message may be a downlink control channel that carries the identifier of the terminal device.
  • the sending module 83 may be further configured to send the configuration information to the terminal device before sending the contention resolution message to the terminal device by sending the parameter.
  • the configuration information includes at least one random access configuration, and an association between the first data and the random access configuration.
  • the random access configuration may include random access time-frequency resources and/or a preamble index, and the like.
  • the sending module 83 is further configured to send a random access response to the terminal device before sending the contention resolution message to the terminal device by sending the parameter.
  • the sending parameter of the random access response is the same as the sending parameter of the first data, and/or the sending parameter of the downlink control information of the random access response is the same as the sending parameter of the first data.
  • the device described above in this embodiment may be used to implement the technical solution executed by the network device or its internal chip in the foregoing method embodiments, and the implementation principle and the technical effect are similar.
  • the function of each module may refer to the corresponding method embodiment. The description is not repeated here.
  • the terminal device 90 provided by the embodiment of the present application includes at least a processor 91 and a transceiver 92.
  • the terminal device may further include a memory 93 that stores computer execution instructions;
  • the processor 91 is configured to determine a receiving parameter of the first data, and send an indication to the transceiver 92.
  • the transceiver 92 is configured to receive a contention resolution message by using the receiving parameter according to the indication of the processor. 91.
  • the method further includes determining, according to the contention resolution message, that a contention resolution of the random access is successful or determining that the random access is successful.
  • the first data is at least one of the following data: SS-block, PBCH, CSI-RS, downlink control information of a random access response, and a random access response.
  • the foregoing processor 91 may be configured to perform the actions implemented by the terminal device described in the foregoing method embodiments, and the transceiver 92 may be configured to perform the actions of the terminal device described in the foregoing method embodiment to transmit or send or receive to the network device.
  • the transceiver 92 may be configured to perform the actions of the terminal device described in the foregoing method embodiment to transmit or send or receive to the network device.
  • the contention resolution message may be a downlink control channel carrying the identifier of the terminal device, or the contention resolution message carries part or all of the information of the message 3 sent by the terminal device to specify that the competition in the random access is won.
  • the terminal device, and the downlink control channel is configured to transmit the downlink allocation and/or the uplink grant. If the contention resolution message is the downlink assignment, the transceiver 92 receives the downlink data according to the downlink assignment, and sends the feedback for the downlink data to the network device.
  • the feedback is used to notify the network device whether the downlink data is successfully decoded by the terminal device 90; if the contention resolution message is an uplink grant, the transceiver 92 sends uplink data to the network device according to the uplink grant; if the contention resolution message is sent by the terminal device Part or all of the information of the message 3, then the transceiver 92 sends feedback to the network device for the contention resolution message, the feedback is used to notify the network device that the contention resolution message is successfully decoded by the terminal device; when the decoding is unsuccessful, the transceiver 92 There is no need to send feedback to the network device.
  • the above processor 91 and memory 93 can be integrated into one processing device, and the processor 91 is configured to execute the program code stored in the memory 93 to implement the above functions.
  • the memory 93 can also be integrated in the processor 91.
  • the terminal device may further include a power source 94 for providing power to various devices or circuits in the terminal device.
  • the terminal device may include an antenna 95 for transmitting uplink data or uplink control signaling output by the transceiver 92 through the wireless signal. Send it out.
  • the terminal device may further include one or more of an input unit 96, a display unit 97, an audio circuit 98, a camera 99, a sensor 100, and the like, and the audio circuit 98
  • a speaker 981, a microphone 982, and the like can also be included.
  • the network device 20 provided by the embodiment of the present application includes at least a processor 21 and a transceiver 22.
  • the network device may further include a memory 23, configured to store a computer to execute an instruction;
  • the transceiver 22 is configured to receive a preamble sent by the terminal device on a random access time-frequency resource
  • the processor 21 is configured to determine, according to the random access time-frequency resource and/or the preamble, a sending parameter of the first data, and send an indication to the transceiver;
  • the transceiver 22 is further configured to send, by using the sending parameter, a contention resolution message to the terminal device according to the indication of the processor 21, where the contention resolution message is used to indicate that the terminal device determines that the contention resolution of the random access is successful. Or determine that random access is successful.
  • the first data is at least one of the following data: SS-block, PBCH, CSI-RS, downlink control information of a random access response, and a random access response.
  • the foregoing processor 21 may be configured to perform the actions implemented by the network device described in the foregoing method embodiments, and the transceiver 22 may be configured to perform the actions of the network device described in the foregoing method embodiment to transmit or send or receive to the terminal device.
  • the transceiver 22 may be configured to perform the actions of the network device described in the foregoing method embodiment to transmit or send or receive to the terminal device.
  • the processor 21 and the memory 23 described above can synthesize a processing device for executing the program code stored in the memory 23 to implement the above functions.
  • the memory 23 can also be integrated in the processor 21.
  • the network device may further include an antenna 24 for transmitting downlink data or signaling output by the transceiver 22 through the wireless signal.
  • the processor of the terminal device and the processor of the network device may be a central processing unit (CPU), a network processor (NP) or a combination of a CPU and an NP.
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.
  • the memory of the terminal device and the memory of the network device may include a volatile memory such as a random access memory (RAM); and may also include a non-volatile memory such as a fast A flash memory, a hard disk drive (HDD), or a solid-state drive (SSD); the memory may further include a combination of the above types of memories.
  • RAM random access memory
  • non-volatile memory such as a fast A flash memory, a hard disk drive (HDD), or a solid-state drive (SSD)
  • the memory may further include a combination of the above types of memories.
  • the terminal device can perform wireless communication with the network device through the unlicensed transmission.
  • the terminal device can also perform wireless communication with the network device by granting spectrum resource transmission.
  • the network device in the embodiment of the present application may correspond to the network device in the method embodiment of the present application
  • the terminal device may correspond to the terminal device in the method embodiment of the present application.
  • the foregoing and other operations and/or functions of the respective modules of the network device and the terminal device are respectively used to implement the corresponding processes of the foregoing method embodiments.
  • the description of the method embodiments of the present application may be applied to the device embodiment, where No longer.
  • the terminal device receives the contention resolution message by using the receiving parameter of the first data, and determines, according to the contention resolution message, that the contention resolution of the random access is successful or determines that the random access is successful, where the first data is It is at least one of the following data: SS-block, CSI-RS, downlink control information of the random access response, and random access response, so that the terminal device can specifically distinguish the received contention resolution corresponding to the multiple TRP scenario.
  • the message is the contention resolution message corresponding to the current random access.
  • the terminal device does not continue to perform random access after receiving the contention resolution message corresponding to the current random access, that is, not in the random access process.
  • the terminal device continues to perform random access before receiving the contention resolution message corresponding to the current random access, for example, waiting for the contention resolution message corresponding to the current random access or Resending the random access preamble to the network device, and implementing random access of the terminal device for multiple TRP scenarios Dispute resolved successfully or random access success.
  • the present application also provides a terminal device including a memory and a processor, and a computer program stored on the memory for execution by the processor, the processor executing the computer program to implement a terminal as in the above method embodiment The steps performed by the device.
  • the present application also provides a network device including a memory and a processor, and a computer program stored on the memory for execution by the processor, the processor executing the computer program to implement a network as in the above method embodiment The steps performed by the device.
  • the application also provides a terminal device comprising at least one processing element (or chip) for performing the method of the above first aspect.
  • the application also provides a network device comprising at least one processing element (or chip) for performing the method of the above second aspect.
  • the present application also provides a computer program for performing the steps performed by the terminal device in the above method embodiment when executed by the processor of the terminal device.
  • the application also provides a computer program for performing the steps performed by the network device in the method embodiment described above when executed by a processor of the network device.
  • the application also provides a computer program product comprising a computer program (ie, executing instructions) stored in a readable storage medium.
  • a computer program ie, executing instructions
  • At least one processor of the terminal device or network device can read the computer program from a readable storage medium, and the at least one processor executes the computer program such that the terminal device or network device implements the random access method provided by the various embodiments described above.
  • the present application also provides a computer readable storage medium, when the instructions in the computer readable storage medium are executed by a processor of the terminal device, to enable the terminal device to perform the steps performed by the terminal device in any of the foregoing method embodiments.
  • the application further provides a computer readable storage medium that, when executed by a processor of a network device, causes the network device to perform the steps performed by the network device in any of the foregoing method embodiments.
  • the present application also provides a communication system, including: a terminal device as shown in FIG. 9 and a network device as shown in FIG.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本申请实施例提供一种随机接入方法、设备及系统，该方法包括：终端设备确定第一数据的接收参数,第一数据为以下数据中的至少一种：SS-block、PBCH、CSI-RS、随机接入响应的下行控制信息和随机接入响应等；终端设备通过上述接收参数，接收竞争解决消息；终端设备根据竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功。本申请可针对多TRP场景实现终端设备随机接入的竞争解决成功或随机接入成功。

Description

随机接入方法、设备及系统
本申请要求于2017年08月11日提交中国专利局、申请号为201710687777.3、申请名称为“随机接入方法、设备及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术，尤其涉及一种随机接入方法、设备及系统。
背景技术
在实际应用中，终端设备传输上行数据之前需取得上行时间同步。而上行时间同步是终端设备与网络设备通过随机接入过程(Random Access Procedure，RAP)建立通信连接取得的。
现有随机接入过程包括以下步骤：终端设备发送随机接入前导(Msg1)给网络设备；终端设备接收网络设备发送的随机接入响应(Msg2)；终端设备发送消息3(Msg3)给网络设备；终端设备接收网络设备发送的消息4(Msg4)，即竞争解决(contention resolution)消息。例如，网络设备可以通过SPCell(CA场景的主小区，DC场景的主小区组的主小区和辅小区组的主辅小区)上使用小区无线网络临时标识(Cell radio network temporary identifier，C-RNTI)加扰的物理下行控制信道(Physical Downlink control channel，PDCCH)来指明在竞争解决中胜出的终端设备。
但上述现有技术只针对一个传输接收点(Transmission and receiving point，TRP)场景。对于新无线(New Radio，NR)技术中引进的多TRP场景，现有技术并未给出随机接入过程中竞争解决的有效解决方案。
发明内容
本申请实施例提供一种随机接入方法、设备及系统，以针对多TRP场景实现终端设备随机接入的竞争解决成功或随机接入成功。
第一方面，本申请实施例提供一种随机接入方法，包括：终端设备确定第一数据的接收参数；终端设备通过上述接收参数，接收竞争解决消息；终端设备根据竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功。其中，第一数据为以下数据中的至少一种：SS-block、PBCH、CSI-RS、随机接入响应的下行控制信息和随机接入响应等。
可选地，终端设备通过接收参数，接收竞争解决消息之前，随机接入方法还包括：终端设备接收网络设备发送的配置信息。其中，该配置信息包括至少一个随机接入配置，和，第一数据与随机接入配置的关联。随机接入配置可以包括随机接入时频资源和/或前导索引。
可选地，终端设备通过接收参数，接收竞争解决消息之前，随机接入方法还包括：终 端设备根据随机接入配置，在随机接入时频资源上，向网络设备发送前导。其中，前导与前导索引存在对应关系。这里，随机接入时频资源和所发送前导对应的前导索引二者至少一个包含于随机接入配置之中。
可选地，终端设备通过接收参数，接收竞争解决消息之前，随机接入方法还包括：终端设备接收网络设备发送的随机接入响应。其中，该随机接入响应的接收参数与前述第一数据的接收参数相同，和/或，该随机接入响应的下行控制信息的接收参数与前述第一数据的接收参数相同。
第二方面，本申请实施例提供一种随机接入方法，包括：网络设备接收终端设备在随机接入时频资源上发送的前导；网络设备根据随机接入时频资源和/或前导，确定第一数据的发送参数；网络设备通过发送参数，发送竞争解决消息给终端设备，该竞争解决消息用于指示终端设备确定随机接入的竞争解决成功或确定随机接入成功。其中，第一数据为以下数据中的至少一种：SS-block、PBCH、CSI-RS、随机接入响应的下行控制信息、随机接入响应。
可选地，网络设备根据随机接入时频资源和/或前导，确定第一数据的发送参数，包括：网络设备根据前导和/或随机接入时频资源，确定随机接入配置，其中，前导与前导索引存在对应关系；网络设备根据随机接入配置及第一数据与随机接入配置的关联，确定第一数据的发送参数。
可选地，网络设备通过发送参数，发送竞争解决消息给终端设备之前，随机接入方法还包括：网络设备发送配置信息给终端设备。其中，配置信息包括至少一个随机接入配置，和，第一数据与随机接入配置的关联。随机接入配置可以包括随机接入时频资源和/或前导索引。
可选地，网络设备通过发送参数，发送竞争解决消息给终端设备之前，随机接入方法还包括：网络设备发送随机接入响应给终端设备。其中，随机接入响应的发送参数与前述第一数据的发送参数相同，和/或，随机接入响应的下行控制信息的发送参数与前述第一数据的发送参数相同。
第三方面，本申请实施例提供一种随机接入装置，包括：确定模块和接收模块。其中，确定模块用于确定第一数据的接收参数；接收模块用于通过接收参数，接收竞争解决消息；确定模块还用于根据竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功。第一数据为以下数据中的至少一种：SS-block、PBCH、CSI-RS、随机接入响应的下行控制信息和随机接入响应等。
可选地，接收模块还用于：在通过接收参数，接收竞争解决消息之前，接收网络设备发送的配置信息。该配置信息包括至少一个随机接入配置，和，第一数据与随机接入配置的关联。随机接入配置可以包括随机接入时频资源和/或前导索引。
可选地，随机接入装置还包括：发送模块，用于在接收模块通过接收参数，接收竞争解决消息之前，根据上述随机接入配置，在随机接入时频资源上，向网络设备发送前导。其中，前导与前导索引存在对应关系。
可选地，接收模块还用于：在通过接收参数，接收竞争解决消息之前，接收网络设备发送的随机接入响应。其中，该随机接入响应的接收参数与前述第一数据的接收参数相同，和/或，该随机接入响应的下行控制信息的接收参数与前述第一数据的接收参数相同。
第四方面，本申请实施例提供一种随机接入装置，包括：接收模块，用于接收终端设备在随机接入时频资源上发送的前导；确定模块，用于根据随机接入时频资源和/或前导，确定第一数据的发送参数；发送模块，用于通过发送参数，发送竞争解决消息给终端设备，该竞争解决消息用于指示终端设备确定随机接入的竞争解决成功或确定随机接入成功。其中，第一数据为以下数据中的至少一种：SS-block、PBCH、CSI-RS、随机接入响应的下行控制信息和随机接入响应等。
可选地，确定模块可具体用于：根据前导和/或随机接入时频资源，确定随机接入配置，其中，前导与前导索引存在对应关系；根据随机接入配置及第一数据与随机接入配置的关联，确定第一数据的发送参数。
可选地，发送模块还用于：在通过发送参数，发送竞争解决消息给终端设备之前，发送配置信息给终端设备。其中，该配置信息包括至少一个随机接入配置，和，第一数据与随机接入配置的关联。随机接入配置可以包括随机接入时频资源和/或前导索引。
可选地，发送模块还用于：在通过发送参数，发送竞争解决消息给终端设备之前，发送随机接入响应给终端设备。其中，随机接入响应的发送参数与第一数据的发送参数相同，和/或，随机接入响应的下行控制信息的发送参数与第一数据的发送参数相同。
第五方面，本申请实施例提供一种终端设备，包括：处理器，用于确定第一数据的接收参数，发送指示给收发器；收发器，用于根据所述处理器的指示，通过所述接收参数，接收竞争解决消息；所述处理器，还用于根据所述竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功。其中，所述第一数据为以下数据中的至少一种：SS-block、PBCH、CSI-RS、随机接入响应的下行控制信息和随机接入响应等。
可选地，所述收发器还用于：在所述通过所述接收参数，接收竞争解决消息之前，接收网络设备发送的配置信息，所述配置信息包括至少一个随机接入配置，和，所述第一数据与所述随机接入配置的关联，所述随机接入配置包括随机接入时频资源和/或前导索引。
可选地，所述收发器还用于：在所述通过所述接收参数，接收竞争解决消息之前，根据所述随机接入配置，在随机接入时频资源上，向网络设备发送前导，其中，前导与前导索引存在对应关系。
可选地，所述收发器还用于：在所述通过所述接收参数，接收竞争解决消息之前，接收网络设备发送的随机接入响应，其中，所述随机接入响应的接收参数与所述第一数据的接收参数相同，和/或，所述随机接入响应的下行控制信息的接收参数与所述第一数据的接收参数相同。
第六方面，本申请实施例提供一种网络设备，包括：收发器，用于接收终端设备在随机接入时频资源上发送的前导；处理器，用于根据所述随机接入时频资源和/或所述前导，确定第一数据的发送参数，发送指示给收发器；所述收发器，还用于根据所述处理器的指示，通过所述发送参数，发送竞争解决消息给所述终端设备，所述竞争解决消息用于指示所述终端设备确定随机接入的竞争解决成功或确定随机接入成功。其中，所述第一数据为以下数据中的至少一种：SS-block、PBCH、CSI-RS、随机接入响应的下行控制信息和随机接入响应等。
可选地，所述处理器具体用于：根据所述前导和/或所述随机接入时频资源，确定随机接入配置，其中，所述前导与前导索引存在对应关系；根据所述随机接入配置及第一数据 与随机接入配置的关联，确定所述第一数据的发送参数。
可选地，所述收发器还用于：在通过所述发送参数，发送竞争解决消息给所述终端设备之前，发送配置信息给所述终端设备，所述配置信息包括至少一个随机接入配置，和，所述第一数据与所述随机接入配置的关联，所述随机接入配置包括随机接入时频资源和/或前导索引。
可选地，所述收发器还用于：在通过所述发送参数，发送竞争解决消息给所述终端设备之前，发送随机接入响应给所述终端设备，其中，所述随机接入响应的发送参数与所述第一数据的发送参数相同，和/或，所述随机接入响应的下行控制信息的发送参数与所述第一数据的发送参数相同。
在上述本申请第一方面至第六方面任一种实现方式的基础上：
可选地，上述随机接入配置还包括以下至少一项：
根序列索引，用于生成前导序列；
高速标识，用于生成选择前导；
前导集合或前导数量；
前导功率攀升参数；
前导的初始接收目标功率；
前导的最大传输次数；
随机接入响应窗口长度；
MAC竞争解决定时器。
可选地，上述接收参数包括以下参数中的至少一种：到达角、主到达角、平均到达角、到达角的角功率谱、平均离开角、离开角的角功率谱、传输接收信道关联、传输接收波束成型和空间信道关联等。
可选地，上述发送参数包括以下参数中的至少一种：离开角、平均离开角、离开角的角功率谱、传输接收信道关联、传输接收波束成型和空间信道关联等。
可选地，上述竞争解决消息为携带终端设备的标识的下行控制信道。
第七方面，本申请实施例提供一种终端设备，包括：处理器和存储器，以及存储在所述存储器上可供所述处理器执行的计算机程序，所述处理器执行所述计算机程序实现如第一方面所述的方法。
第八方面，本申请实施例提供一种网络设备，包括：处理器和存储器，以及存储在所述存储器上可供所述处理器执行的计算机程序，所述处理器执行所述计算机程序实现如第二方面所述的方法。
第九方面，本申请实施例提供一种终端设备，包括用于执行以上第一方面的方法的至少一个处理元件(或芯片)。
第十方面，本申请实施例提供一种网络设备，包括用于执行以上第二方面的方法的至少一个处理元件(或芯片)。
第十一方面，本申请实施例提供一种程序，该程序在被终端设备的处理器执行时用于执行以上第一方面的方法。
第十二方面，本申请实施例提供一种程序，该程序在被网络设备的处理器执行时用于执行以上第二方面的方法。
第十三方面，本申请实施例提供一种计算机程序产品，包括第十一方面的程序。
第十四方面，本申请实施例提供一种计算机程序产品，包括第十二方面的程序。
第十五方面，本申请实施例提供一种计算机可读存储介质，当计算机可读存储介质中的指令由终端设备的处理器执行时，使得终端设备能够执行第一方面的方法。
第十六方面，本申请实施例提供一种计算机可读存储介质，当计算机可读存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行第二方面的方法。
第十七方面，本申请实施例提供一种通信系统，包括如第五方面所述的终端设备和如第六方面所述的网络设备。
本申请实施例提供一种随机接入方法、设备及系统，终端设备通过第一数据的接收参数，接收竞争解决消息；并根据所述竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功，其中，该第一数据为以下数据中的至少一种：SS-block、CSI-RS、随机接入响应的下行控制信息和随机接入响应，从而对应多TRP场景，终端设备可有针对性的区分接收到的竞争解决消息是否为当前随机接入对应的竞争解决消息，一方面，使得终端设备在接收到当前随机接入对应的竞争解决消息之后才不再继续进行随机接入，即在该随机接入过程中不再发送随机接入前导给网络设备；另一方面，使得终端设备在没有接收到当前随机接入对应的竞争解决消息之前继续进行随机接入，例如，等待当前随机接入对应的竞争解决消息或重新发送随机接入前导给网络设备，针对多TRP场景实现终端设备随机接入的竞争解决成功或随机接入成功。
附图说明
图1为本申请实施例提供的通信系统的示意图；
图2为本申请一实施例提供的随机接入方法的流程图；
图3为本申请另一实施例提供的随机接入方法的信令交互图；
图4为本申请一实施例提供的随机接入方法的应用示例；
图5为本申请又一实施例提供的随机接入方法的信令交互图；
图6为本申请另一实施例提供的随机接入方法的应用示例；
图7为本申请一实施例提供的随机接入装置的结构示意图；
图8为本申请另一实施例提供的随机接入装置的结构示意图；
图9为本申请一实施例提供的终端设备的结构示意图；
图10为本申请一实施例提供的网络设备的结构示意图。
具体实施方式
图1为本申请实施例提供的通信系统的示意图。如图1所示，通信系统包括网络设备和至少一个终端设备，其中，终端设备处在网络设备覆盖范围内并与网络设备进行通信，以实施下述各本申请实施例提供的技术方案。本实施例的通信系统可以应用于多TRP场景。
本申请实施例结合网络设备和终端设备描述了各个实施例，该网络设备和终端设备可以工作在许可频段或免许可频段上，其中：
终端设备也可以称为用户设备(User Equipment，UE)、接入终端、用户单元、用户 站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备可以是无线局域网(Wireless Local Area Networks，WLAN)中的站点(STATION，ST)，可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及下一代通信系统，例如，第五代通信(the fifth-generation，5G)网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端设备，NR系统中的终端设备等。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
此外，网络设备又称为无线接入网(Radio Access Network，RAN)设备，是一种将终端设备接入到无线网络的设备，可以是长期演进(Long Term Evolution，LTE)中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者5G网络中的网络设备或者未来演进的PLMN网络中的网络设备，或NR系统中的新一代基站(new radio Node B，gNodeB)等，在此并不限定。
另外，在本申请实施例中，网络设备为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信。该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站。这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
随机接入过程通常由以下七类事件之一触发：
1)初始接入时建立无线连接，即终端设备从无线资源控制空闲(Radio Resource Control Idle，RRC_IDLE)态到RRC连接(RRC Connected，RRC_CONNECTED)态；
2)RRC连接重建过程(RRC Connection Re-establishment procedure)，用于重建立RRC连接；
3)切换(handover)，从一个小区切换到另外一个小区；
4)RRC_CONNECTED态下，下行数据到达(例如，此时需要回复混合自动重传请求HARQ ACK/NACK)时，上行时间处于“不同步”状态；
5)RRC_CONNECTED态下，上行数据到达(例如，需要上报测量报告或发送用户数据)时，上行时间处于“不同步”状态或没有可用的物理上行控制信道(Physical Uplink Shared Channel，PUCCH)资源用于调度请求(Scheduling Request，SR)传输；
6)RRC_CONNECTED态下，为了定位终端设备，需要时间提前(timing advance)；
7)RRC_INACTIVE态到RRC_CONNECTED态的状态转换。
处于RRC_CONNECTED态的终端设备，为保持终端设备与接入网设备之间的RRC连接和接入网设备与核心网设备的连接的终端设备。处于RRC_INACTIVE态的终端设备，为保持接入网设备与核心网设备的连接，无终端设备与接入网设备之间的RRC连接的终端设备。处于RRC_IDLE态的终端设备，为无接入网设备与核心网设备的连接和无终端设备与接入网设备之间的RRC连接的终端设备。
随机接入过程包括：
(1)基于竞争(Contention based)的随机接入过程：应用于上述六类事件的前5类；
(2)基于非竞争(Non-Contention based或Contention-Free based)的随机接入过程：应用于上述七类事件的3)、4)、6)、7)三种。
对于波束(beam)，可以理解为空间资源，可以指具有能量传输指向性的发送或接收预编码向量。并且，该发送或接收预编码向量能够通过索引信息进行标识。其中，能量传输指向性可以指通过该预编码向量对所需发送的信号进行预编码处理，经过该预编码处理的信号具有一定的空间指向性，接收经过该预编码向量进行预编码处理后的信号具有较好的接收功率，如满足接收解调信噪比等；所述能量传输指向性也可以指通过该预编码向量接收来自不同空间位置发送的相同信号具有不同的接收功率。可选地，同一通信设备，比如终端设备或网络设备，可以有不同的预编码向量，不同的通信设备也可以有不同的预编码向量，即对应不同的波束。
针对通信设备的配置或者能力，一个通信设备在同一时刻可以使用多个不同的预编码向量中的一个或者多个，即同时可以形成一个波束或者多个波束。波束信息可以通过索引信息进行标识，可选地，所述索引信息可以对应配置终端设备的资源标识(identity，ID)。例如，所述索引信息可以对应配置的信道状态信息参考信号(Channel status information Reference Signal，CSI-RS)的ID或者索引(index)或资源，也可以是对应配置的上行探测参考信号(Sounding Reference Signal，SRS)的ID或者资源。或者，可选地，所述索引信息也可以是通过波束承载的信号或信道显示或隐式承载的索引信息，比如，所述索引信息包括但是不限于通过波束发送的同步信号或者广播信道指示该波束的索引信息。该资源可以是以下至少一种：时域、频域、码域(序列)。
应当理解，本文中使用的术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。
图2为本申请一实施例提供的随机接入方法的流程图，如图2所示，本实施例的方法包括：
S201、终端设备确定第一数据的接收参数。
其中，第一数据可以为以下数据中的至少一种：同步信号块(Synchronization Signal block，SS-block)、物理广播信道(Physical Broadcast Channel，PBCH)、CSI-RS、随机接入响应的下行控制信息和随机接入响应等。其中，CSI-RS用于信道估计或波束管理或小区移动性测量；SS-block可以包括主同步信号(Primary Synchronization Signal，PSS)和辅同步信号(Secondary Synchronization Signal，SSS)等中的至少一项。可选地，SS-block或CSI-RS可以通过波束的方式进行传输。接收参数可以是天线参数，或波束的接收参数， 或空间的接收参数(spatial receive parameters)等。
具体地，该第一数据可以是随机接入过程中接收的数据，或者，也可以是触发随机接入过程之前接收的数据，对此本申请实施例不予限制。另外，第一数据的接收参数即终端设备接收第一数据时所使用的参数。
另需说明的是，第一数据与终端设备确定的随机接入配置有关联。例如，当第一数据为SS-block时，不同SS-block对应的接收参数可能不同，而终端设备无需确定所有SS-block的接收参数，只需确定发起随机接入所使用的随机接入时频资源和/或前导索引所关联的SS-block的接收参数即可。又如，当第一数据为CSI-RS时，不同CSI-RS对应的接收参数可能不同，而终端设备无需确定所有CSI-RS的接收参数，只需确定发起随机接入所使用的随机接入时频资源和/或前导索引所关联的CSI-RS的接收参数即可。或者，当第一数据为PBCH时，不同PBCH对应的接收参数可能不同，而终端设备无需确定所有PBCH的接收参数，只需确定发起随机接入所使用的随机接入时频资源和/或前导索引所关联的PBCH的接收参数即可。另外，终端设备可根据SS-block的标识来区分不同SS-block。同理，终端设备可根据CSI-RS的配置标识来区分不同CSI-RS。
在触发随机接入过程之前，或随机接入过程中，终端设备确定第一数据的接收参数。可选地，终端设备存储第一数据的接收参数。可选地，接收参数可以包括以下参数中的至少一种：到达角(angle of arrival，AoA)、主到达角(Dominant AoA)、平均到达角(average AoA)、到达角的角功率谱(Power Angular Spectrum，PAS)、平均离开角(angle of Direction，AOD)、离开角的角功率谱、传输接收信道关联(transmit/receive channel correlation)、传输接收波束成型(transmit/receive beamforming)和空间信道关联(spatial channel correlation)等。
S202、终端设备通过上述接收参数，接收竞争解决消息。
在随机接入过程中，终端设备通过上述确定的第一数据的接收参数，从网络设备接收竞争解决消息。其中，竞争解决消息是由网络设备发送给终端设备的。
具体实现时，竞争解决消息可以为携带该终端设备的标识的下行控制信道，或者，竞争解决消息携带该终端设备发送的消息3的部分或全部信息，以指定在随机接入的竞争中胜出的终端设备。示例性地，竞争解决消息为终端设备的标识加扰循环冗余校验(Cyclic Redundancy Check，CRC)位的下行控制信道。其中，下行控制信道用于传输下行分配(downlink assignment)和/或上行授权(uplink grant)，例如，下行控制信道可以是PDCCH。下行分配用于指示下行数据的传输资源，上行授权用于分配上行数据的传输资源。如果竞争解决消息为下行分配，终端设备根据该下行分配，接收下行数据，并向网络设备发送针对下行数据的反馈，该反馈用于通知网络设备该下行数据是否被终端设备解码成功；如果竞争解决消息为上行授权，终端设备根据该上行授权，向网络设备发送上行数据。如果竞争解决消息为该终端设备发送的消息3的部分或全部信息，那么终端设备向网络设备发送针对该竞争解决消息的反馈，该反馈用于通知网络设备该竞争解决消息被终端设备解码成功；当解码不成功时，终端设备无需向网络设备发送反馈。
其中，终端设备的标识是指终端设备在小区中的标识。可选地，终端设备的标识为小区的无线网络临时标识(cell radio network temporary identifier，C-RNTI)。
S203、终端设备根据竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成 功。
例如，若终端设备确定竞争解决消息中携带该终端设备的标识，则认为随机接入的竞争解决成功或确定随机接入成功；或者，若终端设备确定竞争解决消息中携带该终端设备发送的消息3的部分或全部信息，则认为随机接入的竞争解决成功或确定随机接入成功。
本实施例中，终端设备通过第一数据的接收参数，接收竞争解决消息；并根据竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功，其中，该第一数据为以下数据中的至少一种：SS-block、CSI-RS、随机接入响应的下行控制信息和随机接入响应，从而对应多TRP场景，终端设备可有针对性的区分接收到的竞争解决消息是否为当前随机接入对应的竞争解决消息，一方面，使得终端设备在接收到当前随机接入对应的竞争解决消息之后才不再继续进行随机接入，即在该随机接入过程中不再发送随机接入前导给网络设备；另一方面，使得终端设备在没有接收到当前随机接入对应的竞争解决消息之前继续进行随机接入，例如，等待当前随机接入对应的竞争解决消息或重新发送随机接入前导给网络设备，针对多TRP场景实现终端设备随机接入的竞争解决成功或随机接入成功。
以下结合网络设备和终端设备的交互进行说明。
图3为本申请另一实施例提供的随机接入方法的信令交互图。如图3所示，该随机接入方法包括以下步骤：
S301、终端设备接收网络设备发送的配置信息。
其中，该配置信息包括至少一个随机接入配置，和，第一数据与随机接入配置的关联。随机接入配置可以包括随机接入时频资源和/或前导索引。另外，随机接入时频资源和/或前导索引的个数均可以为一个或多个，本申请不予限制。该步骤为可选步骤，只有首次随机接入或当配置信息有更新后再重新随机接入时，S301才被执行。
例如，配置信息包括随机接入配置1和随机接入配置2，以及，随机接入配置1与SS-block1的关联1，随机接入配置2与SS-block2的关联2。此时，若终端设备确定根据随机接入配置1进行随机接入，则终端设备确定与随机接入配置1关联的SS-block1为本文中所说的第一数据。对于后续S305中终端设备确定第一数据的接收参数，可以理解为：终端设备确定SS-block1的接收参数。
可选地，随机接入配置还可以包括以下至少一项：根序列索引(rootSequenceIndex)，用于生成前导序列；高速标识(highSpeedFlag)，用于生成选择前导；前导集合或前导数量；前导功率攀升参数；前导的初始接收目标功率；前导的最大传输次数(PreambleTransMax)；随机接入响应窗口长度(ra-ResponseWindowSize)；媒体接入控制(Medium Access Control，MAC)竞争解决定时器，等等。
S302、终端设备根据配置信息中包含的随机接入配置，在随机接入时频资源上，向网络设备发送前导。
其中，前导(Preamble)与前导索引存在对应关系。对于前导与前导索引二者之间的关系具体可参考现有技术，此处不再赘述。前导例如为前导序列。
示例性地，若终端设备可用的前导索引包括：前导索引1、前导索引2和前导索引3，则终端设备发送的前导所对应的前导索引，是在前导索引1、前导索引2和前导索引3的范围内，也就是说，终端设备发送的前导所对应的前导索引是上述三个前导索引中的一个。
终端设备要成功发送前导，需要以下条件：
1)选择前导索引；
2)选择用于发送前导的随机接入时频资源；
3)确定对应的随机接入无线网络临时标识(Random Access Radio Network Temporary Identifier，RA-RNTI)；
4)确定目标接收功率(PREAMBLE_RECEIVED_TARGET_POWER)。
上述条件可以是预先定义的，或者是由高层信令进行配置的，或者其他方式获取或确定的，本申请不对其进行限制。
结合上述随机接入配置可以包括随机接入时频资源和/或前导索引，该步骤可以理解如下：
可以理解，当随机接入配置包括随机接入时频资源时，该步骤具体为：终端设备在该随机接入配置包含的任一随机接入时频资源上，向网络设备发送前导。该情况下，前导为公共前导，也就是说，该前导无需与第一数据关联，可通过其他配置获得。
当随机接入配置包括前导索引时，该步骤具体为：终端设备在随机接入时频资源上，向网络设备发送该随机接入配置包含的任一前导索引对应的前导。该情况下，随机接入时频资源为公共随机接入时频资源，也就是说，该随机接入时频资源无需与第一数据关联，可通过其他配置获得。
当随机接入配置包括随机接入时频资源和前导索引时，该步骤具体为：终端设备在该随机接入配置包含的任一随机接入时频资源上，向网络设备发送该随机接入配置包含的任一前导索引对应的前导。
例如，配置信息包括两个随机接入配置，分别为随机接入配置1和随机接入配置2，其中，随机接入配置1关联SS-block1，随机接入配置2关联SS-block2。终端设备根据下行测量，选择SS-block2进行随机接入，具体体现为：终端设备使用SS-block2关联的随机接入配置进行随机接入。例如，终端设备使用SS-block2关联的随机接入配置所包含的任一随机接入时频资源，向网络设备发送前导。
对应地，网络设备接收终端设备在随机接入时频资源上发送的前导。
S303、网络设备根据随机接入时频资源和/或前导，确定第一数据的发送参数。
可选地，该步骤具体包括：网络设备根据终端设备发送的前导和/或发送该前导使用的随机接入时频资源，确定随机接入配置，其中，前导与前导索引存在对应关系；网络设备根据该确定的随机接入配置及第一数据与随机接入配置的关联，确定第一数据的发送参数。
由于终端设备发送的前导和发送该前导使用的随机接入时频资源，至少其中之一包含于或对应于确定的随机接入配置，因此，可根据二者确定随机接入配置。另外，如之前所述，配置信息包括随机接入配置和第一数据与随机接入配置的关联，因此，网络设备可根据该确定的随机接入配置及第一数据与随机接入配置的关联，确定第一数据，进而确定第一数据的发送参数。
其中，发送参数可以包括以下参数中的至少一种：离开角、平均离开角、离开角的角功率谱、传输接收信道关联、传输接收波束成型和空间信道关联等。
S304、网络设备发送随机接入响应给终端设备。
其中，随机接入响应的发送参数与第一数据的发送参数相同，和/或，随机接入响应的下行控制信息的发送参数与第一数据的发送参数相同。
对应地，终端设备接收网络设备发送的随机接入响应。
其中，随机接入响应的接收参数与第一数据的接收参数相同，和/或，随机接入响应的下行控制信息的接收参数与第一数据的接收参数相同。例如，终端设备通过SS-block或CSI-RS的接收参数，接收网络设备针对所述前导的随机接入响应。
可选地，终端设备发送前导之后，将在随机接入响应时间窗内根据对应的RA-RNTI监听PDCCH，以接收针对该前导的随机接入响应。如果终端设备在此随机接入响应时间窗内未接收到网络设备回复的随机接入响应，则终端设备认为此次随机接入过程失败。
示例性地，随机接入响应时间窗起始于发送前导的子帧(如果前导在时域上跨多个子帧，则以最后一个子帧计算)+3个子帧，并持续随机接入响应时间窗大小个子帧。
其中，随机接入响应包括上行授权。可选地，随机接入响应还包括上行时间提前量。上行授权包括物理资源。可选地，上行授权还包括以下至少一项：调制编码方案(Modulation and Code Scheme,MCS)，信道质量信息(channel quality information，CQI)请求等。
进一步地，随机接入响应还可以用于触发终端设备接收CSI-RS或测量CSI-RS。
S305、终端设备发送第二数据给网络设备。
其中，第二数据包括终端设备的小区标识。该第二数据可以具体为类似消息3一类的数据，其中包括消息3本身。另外，根据终端设备状态的不同和应用场景的不同，第二数据也可能不同。
具体实现时，终端设备可以根据上行授权向网络设备发送第二数据；或者，终端设备可以根据上行授权和上行时间提前量，向网络设备发送第二数据。
可选地，第二数据还可以包括波束标识。具体地，终端设备根据随机接入响应，进行针对CSI-RS的波束测量，确定测量结果最好或较好的波束，并把该波束的波束标识携带于第二数据中。若终端设备使用的SS-block关联的随机接入配置进行随机接入，则该波束标识可以为时间索引(time index)，该时间索引是通过SS-block中的PBCH进行指示的。若终端设备使用CSI-RS关联的随机接入配置进行随机接入，则该波束标识可以为CSI-RS配置标识，例如，索引等。
S306、终端设备确定第一数据的接收参数。
该步骤同S201，此处不再赘述。
S307、网络设备通过第一数据的发送参数，发送竞争解决消息给终端设备，该竞争解决消息用于指示终端设备确定随机接入的竞争解决成功或确定随机接入成功。
对应地，终端设备通过第一数据的接收参数，接收竞争解决消息。换句话说，终端通过非第一数据的接收参数接收到的消息，例如，该消息是携带C-RNTI的PDCCH，终端设备不能将该消息作为确定竞争解决成功或随机接入成功的依据。
该步骤同S202，此处不再赘述。
S308、终端设备根据竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功。
该步骤同S203，此处不再赘述。
需说明的是，本申请不局限于上述执行顺序。本领域技术人员可以理解，对于S303，该步骤在S302之后、S307之前被执行即可；对于S306，该步骤在S307之前被执行即可，具体执行顺序本申请不作限制。
可选地，在上述实施例的基础上，该随机接入方法还可以包括：终端设备接收网络设备发送的指示信息，其中，该指示信息用于触发终端设备进行随机接入。可选地，指示信息通过物理层信令进行携带。物理层信令例如为PDCCH order。
可选地，指示信息包括至少一个第一标识，该至少一个第一标识用于指示终端设备确定随机接入时频资源。例如，第一标识可以为时间索引(time index)。
进一步地，第一标识还用于标识SS-block和/或CSI-RS。具体地，第一标识用于标识CSI-RS，可以理解为，第一标识用于标识CSI-RS的配置。其中，CSI-RS的配置包括CSI-RS的时频资源。或者，CSI-RS的配置还可以包括以下至少一项：CSI-RS的序列和端口等。
可选地，指示信息还可以包括第二标识，其中，该第二标识用于指示终端设备确定接收随机接入响应的接收参数，该第二标识具体可以为CSI-RS的配置标识。CSI-RS配置包括CSI-RS的时频资源。上述接收参数可以为CSI-RS关联的接收波束或天线参数等。
以下通过图4举例说明上述实施例所提供的随机接入方法的应用。
如图4所示，一个基站下的一个小区包括两个TRP，即TRP1和TRP2，终端设备与TRP2正在进行数据传输，其中，TRP1和TRP2发送的SS-block中包括的主同步信号和/或辅同步信号是一样的。终端设备接收基站通过TRP2发送的指示信息，该指示信息用于触发终端设备进行随机接入，以便获取终端设备-TRP1的上行时间提前量，其中，指示信息例如可以为PDCCH order。具体地，终端设备向TRP1发送前导；终端设备从TRP1接收随机接入响应；终端设备向TRP1发送第二数据；如果是基于竞争的随机接入，终端设备接收基站从TRP1发送的消息，例如，该消息是携带C-RNTI的PDCCH，此时该消息即为竞争解决消息，终端设备根据该竞争解决消息确定随机接入的竞争解决成功或确定随机接入成功。当终端设备接收到基站通过TRP2发送的消息时，例如，该消息是携带C-RNTI的PDCCH，终端设备不能将该消息作为确定竞争解决成功或随机接入成功的依据。
上述实施例是基于竞争的随机接入。在基于非竞争的随机接入时，前导是某个终端设备专用的，所以不存在竞争；又由于终端设备已经拥有在接入小区内的唯一标识，例如C-RNTI，所以也不需要网络设备给该终端设备分配标识。因此，基于非竞争的随机接入仅包括：终端设备发送前导给网络设备，以及终端设备接收网络设备发送的随机接入响应。
需注意的是：(1)通过基于非竞争的随机接入进行网络接入的终端设备原本处于RRC_CONNECTED态；(2)切换时，终端设备在目标小区使用的C-RNTI是通过RRC连接配置中的移动控制信息(MobilityControlInfo)的新终端设备的标识(UE-Identity)来配置的。
接下来通过具体实施例说明本申请提供的基于非竞争的随机接入方法。
图5为本申请又一实施例提供的随机接入方法的信令交互图。参考图5，该随机接入方法包括：
S501、终端设备接收网络设备发送的指示信息。
其中，该指示信息用于触发终端设备进行随机接入。该指示信息包括至少一个第一标识，该至少一个第一标识用于指示终端设备确定随机接入时频资源。示例性地，第一标识可以为时间索引(time index)，该时间索引是通过SS-block的物理广播信道指示的。
可选地，指示信息通过物理层信令进行携带。物理层信令例如为PDCCH order。
该步骤为可选步骤。
进一步地，第一标识还用于标识SS-block和/或CSI-RS。具体地，第一标识用于标识CSI-RS，可以理解为，第一标识用于标识CSI-RS的配置。其中，CSI-RS的配置包括CSI-RS的时频资源。或者，CSI-RS的配置还可以包括以下至少一项：CSI-RS的序列和端口等。
S502、终端设备在第一标识关联的随机接入时频资源上，向网络设备发送前导。
S503、网络设备确定随机接入响应的发送参数。
其中，随机接入响应的发送参数与至少一个随机接入时频资源上CSI-RS的发送参数相同。该随机接入响应与网络设备所接收的前导对应。随机接入响应的发送参数可以具体为离开角、平均离开角、离开角的角功率谱、传输接收信道关联、传输接收波束成型和空间信道关联等中的任一个或多个。
S504、终端设备根据第二标识接收网络设备发送的随机接入响应。
可选地，指示信息还可以包括第二标识，其中，该第二标识用于指示终端设备确定接收随机接入响应的接收参数，该第二标识具体可以为CSI-RS的配置标识。CSI-RS配置包括CSI-RS的时频资源。上述随机接入响应的接收参数可以为CSI-RS关联的接收波束或天线参数等。
S505、终端设备根据该随机接入响应，确定随机接入成功。
在该实施例中，终端设备根据指示信息包含的第一标识确定随机接入时频资源，并在该随机接入时频资源上，向网络设备发送前导；对应地，网络设备在接收前导之后，确定随机接入响应的发送参数；进一步地，终端设备根据指示信息包含的第二标识，确定随机接入响应的接收参数，并通过该接收参数接收网络设备发送的随机接入响应，从而使得终端设备在多TRP场景下确定随机接入成功。例如，指示信息通过TRP2发送，用于通知终端设备向TRP1发送前导；然后，终端设备从TRP1接收随机接入响应。
以下通过图6举例说明如图5所示实施例所提供的随机接入方法的应用。
如图6所示，一个基站下的一个小区包括两个TRP，即TRP1和TRP2，终端设备与TRP2正在进行数据传输，其中，TRP1和TRP2发送的SS-block中包括的主同步信号和/或辅同步信号是一样的。终端设备接收基站通过TRP2以波束的形式发送的指示信息，该指示信息用于触发终端设备进行随机接入，以便获取终端设备-TRP1的上行时间提前量，该指示信息可以携带在PDCCH order中。进一步地，该指示信息还用于指示终端设备在SS-block3对应的随机接入时频资源(即备选波束)上进行随机接入，其中，TRP1具有多个SS-block，包括SS-block1、SS-block2、SS-block3、SS-block4和SS-block5。更进一步地，该指示信息还可以包括接收随机接入响应的CSI-RS对应的接收参数。
图7为本申请一实施例提供的随机接入装置的结构示意图。如图7所示，随机接入装置70包括：确定模块71和接收模块72。其中，
该确定模块71，用于确定第一数据的接收参数。
该接收模块72，用于通过接收参数，接收竞争解决消息。
该确定模块71，还用于根据竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功。
其中，第一数据为以下数据中的至少一种：SS-block、PBCH、CSI-RS、随机接入响应的下行控制信息和随机接入响应等。
可选地，接收参数可以包括以下参数中的至少一种：到达角、主到达角、平均到达角、 到达角的角功率谱、平均离开角、离开角的角功率谱、传输接收信道关联、传输接收波束成型和空间信道关联等。
可选地，竞争解决消息可以为携带终端设备的标识的下行控制信道。
可选地，接收模块72还可以用于：在通过接收参数，接收竞争解决消息之前，接收网络设备发送的配置信息。该配置信息包括至少一个随机接入配置，和，第一数据与随机接入配置的关联。随机接入配置可以包括随机接入时频资源和/或前导索引等。
一种实现方式中，随机接入装置70还可以包括：发送模块73，用于在接收模块72通过接收参数，接收竞争解决消息之前，根据随机接入配置，在随机接入时频资源上，向网络设备发送前导。其中，前导与前导索引存在对应关系。
进一步地，接收模块72还可以用于：在通过所述接收参数，接收竞争解决消息之前，接收网络设备发送的随机接入响应。其中，随机接入响应的接收参数与第一数据的接收参数相同，和/或，随机接入响应的下行控制信息的接收参数与第一数据的接收参数相同。
本实施例以上所述的装置，可以用于执行上述各方法实施例中终端设备或其内部芯片执行的技术方案，其实现原理和技术效果类似，其中各个模块的功能可以参考方法实施例中相应的描述，此处不再赘述。
图8为本申请另一实施例提供的随机接入装置的结构示意图。如图8所示，随机接入装置80包括：接收模块81、确定模块82和发送模块83。其中，
该接收模块81，用于接收终端设备在随机接入时频资源上发送的前导。
该确定模块82，用于根据随机接入时频资源和/或前导，确定第一数据的发送参数。
该发送模块83，用于通过发送参数，发送竞争解决消息给终端设备。该竞争解决消息用于指示终端设备确定随机接入的竞争解决成功或确定随机接入成功。
其中，第一数据可以为以下数据中的至少一种：SS-block、PBCH、CSI-RS、随机接入响应的下行控制信息和随机接入响应等。
可选地，确定模块82可具体用于：根据前导和/或随机接入时频资源，确定随机接入配置，其中，前导与前导索引存在对应关系；根据随机接入配置及第一数据与随机接入配置的关联，确定第一数据的发送参数。
可选地，发送参数可以包括以下参数中的至少一种：离开角、平均离开角、离开角的角功率谱、传输接收信道关联、传输接收波束成型和空间信道关联等。
可选地，竞争解决消息可以为携带所述终端设备的标识的下行控制信道。
在上述基础上，发送模块83还可以用于：在通过发送参数，发送竞争解决消息给终端设备之前，发送配置信息给终端设备。其中，该配置信息包括至少一个随机接入配置，和，第一数据与随机接入配置的关联。该随机接入配置可以包括随机接入时频资源和/或前导索引，等等。
进一步地，发送模块83还可以用于：在通过发送参数，发送竞争解决消息给终端设备之前，发送随机接入响应给终端设备。其中，随机接入响应的发送参数与第一数据的发送参数相同，和/或，随机接入响应的下行控制信息的发送参数与第一数据的发送参数相同。
本实施例以上所述的装置，可以用于执行上述各方法实施例中网络设备或其内部芯片执行的技术方案，其实现原理和技术效果类似，其中各个模块的功能可以参考方法实施例中相应的描述，此处不再赘述。
以下，结合图9，将从网络设备和终端设备的角度，描述本申请实施例提供的随机接入装置。
参见图9所示，本申请实施例提供的终端设备90，至少包括处理器91和收发器92。
该终端设备还可以包括存储器93，其存储计算机执行指令；
处理器91，用于确定第一数据的接收参数，发送指示给收发器92；收发器92，用于根据所述处理器的指示，通过所述接收参数，接收竞争解决消息；所述处理器91，还用于根据所述竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功。其中，所述第一数据为以下数据中的至少一种：SS-block、PBCH、CSI-RS、随机接入响应的下行控制信息和随机接入响应等。
上述处理器91可以用于执行前面方法实施例中描述的由终端设备内部实现的动作，而收发器92可以用于执行前面方法实施例中描述的终端设备向网络设备传输或者发送或者接收的动作。具体请见前面方法实施例中的描述，此处不再赘述。
补充说明的是，由于竞争解决消息可以为携带该终端设备的标识的下行控制信道，或者，竞争解决消息携带终端设备发送的消息3的部分或全部信息，以指定在随机接入的竞争中胜出的终端设备，且下行控制信道用于传输下行分配和/或上行授权，如果竞争解决消息为下行分配，收发器92根据该下行分配，接收下行数据，并向网络设备发送针对下行数据的反馈，该反馈用于通知网络设备该下行数据是否被终端设备90解码成功；如果竞争解决消息为上行授权，收发器92根据该上行授权，向网络设备发送上行数据；如果竞争解决消息为终端设备发送的消息3的部分或全部信息，那么收发器92向网络设备发送针对该竞争解决消息的反馈，该反馈用于通知网络设备该竞争解决消息被终端设备解码成功；当解码不成功时，收发器92无需向网络设备发送反馈。
上述处理器91和存储器93可以集成为一个处理装置，处理器91用于执行存储器93中存储的程序代码来实现上述功能。具体实现时，该存储器93也可以集成在处理器91中。
上述终端设备还可以包括电源94，用于给终端设备中的各种器件或电路提供电源；上述终端设备可以包括天线95，用于将收发器92输出的上行数据或上行控制信令通过无线信号发送出去。
除此之外，为了使得终端设备的功能更加完善，该终端设备还可以包括输入单元96，显示单元97，音频电路98，摄像头99和传感器100等中的一个或多个，所述音频电路98还可以包括扬声器981，麦克风982等。
参见图10所示，本申请实施例提供的网络设备20，至少包括处理器21和收发器22。
网络设备在具体实现中，还可以包括存储器23，用于存储计算机执行指令；
收发器22，用于接收终端设备在随机接入时频资源上发送的前导；
处理器21，用于根据所述随机接入时频资源和/或所述前导，确定第一数据的发送参数，发送指示给收发器；
收发器22，还用于根据处理器21的指示，通过所述发送参数，发送竞争解决消息给所述终端设备，所述竞争解决消息用于指示所述终端设备确定随机接入的竞争解决成功或确定随机接入成功。
其中，第一数据为以下数据中的至少一种：SS-block、PBCH、CSI-RS、随机接入响应的下行控制信息和随机接入响应等。
上述处理器21可以用于执行前面方法实施例中描述的由网络设备内部实现的动作，而收发器22可以用于执行前面方法实施例中描述的网络设备向终端设备传输或者发送或者接收的动作。具体请见前面方法实施例中的描述，此处不再赘述。
上述处理器21和存储器23可以合成一个处理装置，处理器21用于执行存储器23中存储的程序代码来实现上述功能。具体实现时，该存储器23也可以集成在处理器21中。
上述网络设备还可以包括天线24，用于将收发器22输出的下行数据或信令通过无线信号发送出去。
需要说明的是：所述终端设备的处理器和网络设备的处理器可以是中央处理器(central processing unit，CPU)，网络处理器(network processor，NP)或者CPU和NP的组合。处理器还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit，ASIC)，可编程逻辑器件(programmable logic device，PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device，CPLD)，现场可编程逻辑门阵列(field-programmable gate array，FPGA)，通用阵列逻辑(generic array logic，GAL)或其任意组合。
终端设备的存储器和网络设备的存储器可以包括易失性存储器(volatile memory)，例如随机存取内存(random access memory，RAM)；还可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器还可以包括上述种类的存储器的组合。
在本申请实施例中，终端设备能够通过免授权传输与网络设备之间进行无线通信。另外，终端设备也可以通过授权频谱资源传输与网络设备进行无线通信。
本申请装置实施例的网络设备可对应于本申请方法实施例中的网络设备，终端设备可对应于本申请方法实施例中的终端设备。并且，网络设备和终端设备的各个模块的上述和其它操作和/或功能分别为了实现上述方法实施例的相应流程，为了简洁，本申请方法实施例的描述可以适用于该装置实施例，在此不再赘述。
本申请装置实施例，终端设备通过第一数据的接收参数，接收竞争解决消息；并根据所述竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功，其中，该第一数据为以下数据中的至少一种：SS-block、CSI-RS、随机接入响应的下行控制信息和随机接入响应，从而对应多TRP场景，终端设备可有针对性的区分接收到的竞争解决消息是否为当前随机接入对应的竞争解决消息，一方面，使得终端设备在接收到当前随机接入对应的竞争解决消息之后才不再继续进行随机接入，即在该随机接入过程中不再发送随机接入前导给网络设备；另一方面，使得终端设备在没有接收到当前随机接入对应的竞争解决消息之前继续进行随机接入，例如，等待当前随机接入对应的竞争解决消息或重新发送随机接入前导给网络设备，针对多TRP场景实现终端设备随机接入的竞争解决成功或随机接入成功。
本申请还提供一种终端设备，包括存储器和处理器，以及存储在所述存储器上可供所述处理器执行的计算机程序，所述处理器执行所述计算机程序实现如上述方法实施例中终端设备执行的步骤。
本申请还提供一种网络设备，包括存储器和处理器，以及存储在所述存储器上可供所述处理器执行的计算机程序，所述处理器执行所述计算机程序实现如上述方法实施例中网 络设备执行的步骤。
本申请还提供一种终端设备，包括用于执行以上第一方面的方法的至少一个处理元件(或芯片)。
本申请还提供一种网络设备，包括用于执行以上第二方面的方法的至少一个处理元件(或芯片)。
本申请还提供一种计算机程序，该程序在被终端设备的处理器执行时用于执行如上述方法实施例中终端设备执行的步骤。
本申请还提供一种计算机程序，该程序在被网络设备的处理器执行时用于执行如上述方法实施例中网络设备执行的步骤。
本申请还提供一种计算机程序产品，该计算机程序产品包括计算机程序(即执行指令)，该计算机程序存储在可读存储介质中。终端设备或网络设备的至少一个处理器可以从可读存储介质读取该计算机程序，至少一个处理器执行该计算机程序使得终端设备或网络设备实施前述各种实施方式提供的随机接入方法。
本申请还提供一种计算机可读存储介质，当计算机可读存储介质中的指令由终端设备的处理器执行时，使得终端设备能够执行前述任一方法实施例中终端设备执行的步骤。
本申请还提供一种计算机可读存储介质，当计算机可读存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行前述任一方法实施例中网络设备执行的步骤。
本申请还提供一种通信系统，包括：如图9所示的终端设备和如图10所述的网络设备。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、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。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现 有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求书的保护范围为准。

Claims (35)

  1. 一种随机接入方法，其特征在于，包括：
    终端设备确定第一数据的接收参数；
    所述终端设备通过所述接收参数，接收竞争解决消息；
    所述终端设备根据所述竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功；
    其中，所述第一数据为以下数据中的至少一种：
    同步信号块SS-block、物理广播信道PBCH、信道状态信息参考信号CSI-RS、随机接入响应的下行控制信息、随机接入响应。
  2. 根据权利要求1所述的方法，其特征在于，所述接收参数包括以下参数中的至少一种：
    到达角AoA、主到达角、平均到达角、到达角的角功率谱、平均离开角、离开角的角功率谱、传输接收信道关联、传输接收波束成型和空间信道关联。
  3. 根据权利要求1或2所述的方法，其特征在于，所述竞争解决消息为携带所述终端设备的标识的下行控制信道。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述终端设备通过所述接收参数，接收竞争解决消息之前，还包括：
    所述终端设备接收网络设备发送的配置信息，所述配置信息包括至少一个随机接入配置，和，所述第一数据与所述随机接入配置的关联，所述随机接入配置包括随机接入时频资源和/或前导索引。
  5. 根据权利要求4所述的方法，其特征在于，所述终端设备通过所述接收参数，接收竞争解决消息之前，还包括：
    所述终端设备根据所述随机接入配置，在随机接入时频资源上，向网络设备发送前导，其中，前导与前导索引存在对应关系。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述终端设备通过所述接收参数，接收竞争解决消息之前，还包括：
    所述终端设备接收网络设备发送的随机接入响应，其中，所述随机接入响应的接收参数与所述第一数据的接收参数相同，和/或，所述随机接入响应的下行控制信息的接收参数与所述第一数据的接收参数相同。
  7. 一种随机接入方法，其特征在于，包括：
    网络设备接收终端设备在随机接入时频资源上发送的前导；
    所述网络设备根据所述随机接入时频资源和/或所述前导，确定第一数据的发送参数；
    所述网络设备通过所述发送参数，发送竞争解决消息给所述终端设备，所述竞争解决消息用于指示所述终端设备确定随机接入的竞争解决成功或确定随机接入成功；
    其中，所述第一数据为以下数据中的至少一种：
    同步信号块SS-block、物理广播信道PBCH、信道状态信息参考信号CSI-RS、随机接入响应的下行控制信息、随机接入响应。
  8. 根据权利要求7所述的方法，其特征在于，所述网络设备根据所述随机接入时频 资源和/或所述前导，确定第一数据的发送参数，包括：
    所述网络设备根据所述前导和/或所述随机接入时频资源，确定随机接入配置，其中，所述前导与前导索引存在对应关系；
    所述网络设备根据所述随机接入配置及第一数据与随机接入配置的关联，确定所述第一数据的发送参数。
  9. 根据权利要求7或8所述的方法，其特征在于，所述发送参数包括以下参数中的至少一种：
    离开角、平均离开角、离开角的角功率谱、传输接收信道关联、传输接收波束成型和空间信道关联。
  10. 根据权利要求7至9任一项所述的方法，其特征在于，所述竞争解决消息为携带所述终端设备的标识的下行控制信道。
  11. 根据权利要求7至10中任一项所述的方法，其特征在于，所述网络设备通过所述发送参数，发送竞争解决消息给所述终端设备之前，还包括：
    所述网络设备发送配置信息给所述终端设备，所述配置信息包括至少一个随机接入配置，和，所述第一数据与所述随机接入配置的关联，所述随机接入配置包括随机接入时频资源和/或前导索引。
  12. 根据权利要求7至11中任一项所述的方法，其特征在于，所述网络设备通过所述发送参数，发送竞争解决消息给所述终端设备之前，还包括：
    所述网络设备发送随机接入响应给所述终端设备，其中，所述随机接入响应的发送参数与所述第一数据的发送参数相同，和/或，所述随机接入响应的下行控制信息的发送参数与所述第一数据的发送参数相同。
  13. 一种终端设备，其特征在于，包括：
    处理器，用于确定第一数据的接收参数，发送指示给收发器；
    收发器，用于根据所述处理器的指示，通过所述接收参数，接收竞争解决消息；
    所述处理器，还用于根据所述竞争解决消息，确定随机接入的竞争解决成功或确定随机接入成功；
    其中，所述第一数据为以下数据中的至少一种：
    同步信号块SS-block、物理广播信道PBCH、信道状态信息参考信号CSI-RS、随机接入响应的下行控制信息、随机接入响应。
  14. 根据权利要求13所述的终端设备，其特征在于，所述接收参数包括以下参数中的至少一种：
    到达角AoA、主到达角、平均到达角、到达角的角功率谱、平均离开角、离开角的角功率谱、传输接收信道关联、传输接收波束成型和空间信道关联。
  15. 根据权利要求13或14所述的终端设备，其特征在于，所述竞争解决消息为携带终端设备的标识的下行控制信道。
  16. 根据权利要求13至15中任一项所述的终端设备，其特征在于，所述收发器还用于：
    在所述通过所述接收参数，接收竞争解决消息之前，接收网络设备发送的配置信息，所述配置信息包括至少一个随机接入配置，和，所述第一数据与所述随机接入配置的关联， 所述随机接入配置包括随机接入时频资源和/或前导索引。
  17. 根据权利要求16所述的终端设备，其特征在于，所述收发器还用于：
    在所述通过所述接收参数，接收竞争解决消息之前，根据所述随机接入配置，在随机接入时频资源上，向网络设备发送前导，其中，前导与前导索引存在对应关系。
  18. 根据权利要求13至17中任一项所述的终端设备，其特征在于，所述收发器还用于：
    在所述通过所述接收参数，接收竞争解决消息之前，接收网络设备发送的随机接入响应，其中，所述随机接入响应的接收参数与所述第一数据的接收参数相同，和/或，所述随机接入响应的下行控制信息的接收参数与所述第一数据的接收参数相同。
  19. 一种网络设备，其特征在于，包括：
    收发器，用于接收终端设备在随机接入时频资源上发送的前导；
    处理器，用于根据所述随机接入时频资源和/或所述前导，确定第一数据的发送参数，发送指示给收发器；
    所述收发器，还用于根据所述处理器的指示，通过所述发送参数，发送竞争解决消息给所述终端设备，所述竞争解决消息用于指示所述终端设备确定随机接入的竞争解决成功或确定随机接入成功；
    其中，所述第一数据为以下数据中的至少一种：
    同步信号块SS-block、物理广播信道PBCH、信道状态信息参考信号CSI-RS、随机接入响应的下行控制信息、随机接入响应。
  20. 根据权利要求19所述的网络设备，其特征在于，所述处理器具体用于：
    根据所述前导和/或所述随机接入时频资源，确定随机接入配置，其中，所述前导与前导索引存在对应关系；
    根据所述随机接入配置及第一数据与随机接入配置的关联，确定所述第一数据的发送参数。
  21. 根据权利要求19或20所述的网络设备，其特征在于，所述发送参数包括以下参数中的至少一种：
    离开角、平均离开角、离开角的角功率谱、传输接收信道关联、传输接收波束成型和空间信道关联。
  22. 根据权利要求19至21中任一项所述的网络设备，其特征在于，所述竞争解决消息为携带所述终端设备的标识的下行控制信道。
  23. 根据权利要求19至22中任一项所述的网络设备，其特征在于，所述收发器还用于：
    在通过所述发送参数，发送竞争解决消息给所述终端设备之前，发送配置信息给所述终端设备，所述配置信息包括至少一个随机接入配置，和，所述第一数据与所述随机接入配置的关联，所述随机接入配置包括随机接入时频资源和/或前导索引。
  24. 根据权利要求19至23中任一项所述的网络设备，其特征在于，所述收发器还用于：
    在通过所述发送参数，发送竞争解决消息给所述终端设备之前，发送随机接入响应给所述终端设备，其中，所述随机接入响应的发送参数与所述第一数据的发送参数相同，和 /或，所述随机接入响应的下行控制信息的发送参数与所述第一数据的发送参数相同。
  25. 一种终端设备，其特征在于，包括存储器和处理器，以及存储在所述存储器上可供所述处理器执行的计算机程序；
    所述处理器执行所述计算机程序实现如权利要求1至6任一项所述随机接入方法的步骤。
  26. 一种网络设备，其特征在于，包括存储器和处理器，以及存储在所述存储器上可供所述处理器执行的计算机程序；
    所述处理器执行所述计算机程序实现如权利要求7至12任一项所述随机接入方法的步骤。
  27. 一种通信系统，其特征在于，包括如权利要求13至18任一项所述的终端设备和如权利要求19至24任一项所述的网络设备。
  28. 一种终端设备，其特征在于，包括：用于执行权利要求1-6任意一项所述的方法。
  29. 一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行如权利要求1-6中任一所述的方法。
  30. 一种计算机程序产品，其特征在于，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，使得计算机执行如权利要求1-6中任一所述的方法。
  31. 一种芯片，其特征在于，包括存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从所述存储器中调用并运行所述计算机程序，使得所述处理器执行如权利要求1-6中任一所述的方法。
  32. 一种网络设备，其特征在于，包括：用于执行权利要求7-11任意一项所述的方法。
  33. 一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行如权利要求7-11中任一所述的方法。
  34. 一种计算机程序产品，其特征在于，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，使得计算机执行如权利要求7-11中任一所述的方法。
  35. 一种芯片，其特征在于，包括存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从所述存储器中调用并运行所述计算机程序，使得所述处理器执行如权利要求7-11中任一所述的方法。
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