WO2023155653A1 - Prach重复传输方法、设备、装置及存储介质 - Google Patents

Prach重复传输方法、设备、装置及存储介质 Download PDF

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Publication number
WO2023155653A1
WO2023155653A1 PCT/CN2023/072815 CN2023072815W WO2023155653A1 WO 2023155653 A1 WO2023155653 A1 WO 2023155653A1 CN 2023072815 W CN2023072815 W CN 2023072815W WO 2023155653 A1 WO2023155653 A1 WO 2023155653A1
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WIPO (PCT)
Prior art keywords
ssb
network device
transmission
group
prach
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PCT/CN2023/072815
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English (en)
French (fr)
Inventor
费永强
高雪娟
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Publication of WO2023155653A1 publication Critical patent/WO2023155653A1/zh
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Classifications

    • 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
    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • 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
    • 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
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present disclosure relates to the technical field of wireless communication, and in particular to a PRACH repeated transmission method, device, device and storage medium.
  • PRACH Physical Random Access Channel
  • NR New Radio
  • the terminal Before accessing a network device (such as a next-generation Node B (next Generation Node B, gNB)) and obtaining the communication service of the network device, the terminal (also called user equipment (User Equipment, UE)) needs to send a PRACH to initiate a random access enter.
  • a network device such as a next-generation Node B (next Generation Node B, gNB)
  • the terminal also called user equipment (User Equipment, UE)
  • the coverage performance of the PRACH is particularly important. For example, for a terminal located in an area with large fading such as a cell edge or a basement, the PRACH transmission loss is large, and it is especially necessary to enhance the coverage of the PRACH.
  • Embodiments of the present disclosure provide a PRACH retransmission method, device, device, and storage medium, so as to improve the coverage performance of the PRACH.
  • an embodiment of the present disclosure provides a physical random access channel PRACH repeated transmission method, which is applied to a terminal, including:
  • the determining the multiple PRACH transmission beams for repeated transmission according to a predefined rule includes:
  • the transmission beams of multiple PRACHs for repeated transmission According to the correspondence between the random access channel opportunity RO group and the synchronization signal block SSB used for repeated transmission of multiple PRACHs, determine the transmission beams of multiple PRACHs for repeated transmission; or,
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs determine the transmission beams of the multiple PRACHs for repeated transmission;
  • the sending beams of the multiple PRACHs in the repeated transmission are the same.
  • the determining the multiple PRACH transmission beams for repeated transmission according to a predefined rule includes:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission ,include:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each RO corresponds to an SSB.
  • the SSB performs sequential association to determine the transmission beams of multiple PRACHs that are repeatedly transmitted.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission ,include:
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the number of repeated transmissions of the PRACH determine Multiple PRACH transmit beams for repeated transmission.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device and the actual The number of SSBs sent and the number of repeated transmissions of the PRACH determine the transmission beams of multiple PRACHs that are repeatedly transmitted, including:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the SSB is in one-to-one correspondence with the RO, and the RO in the RO group and the actual sent by the network device
  • the SSB performs sequential association to determine multiple PRACH transmission beams for repeated transmission, wherein the number of SSBs actually transmitted by the network device is equal to the number of repeated transmissions of the PRACH; or,
  • each SSB corresponds to M/N ROs, for the ROs in the RO group and the network device
  • the SSBs actually sent are sequentially correlated to determine multiple PRACH transmission beams for repeated transmission, wherein the M is the number of repeated transmissions of the PRACH, and the N is the number of SSBs actually sent by the network device. Said N is less than or equal to said M, and M/N is a positive integer; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each of the SSBs corresponds to RO, after Each of the SSBs corresponds to ROs, sequentially correlating the ROs in the RO group with the SSB actually sent by the network device, and determining multiple PRACH transmission beams for repeated transmission, where the M is the number of repeated transmissions of the PRACH, and the The N is the number of SSBs actually sent by the network device, and the N is less than or equal to the M; or,
  • each RO corresponds to N/M SSBs, and for the ROs in the RO group and the network device
  • the SSBs actually sent are sequentially correlated to determine multiple PRACH transmission beams for repeated transmission, wherein the M is the number of repeated transmissions of the PRACH, and the N is the number of SSBs actually sent by the network device. Said N is greater than or equal to said M, and N/M is a positive integer; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each RO in each RO corresponds to SSB, after Each RO in each RO corresponds to SSB, for the RO in the RO group and the network
  • the SSBs actually sent by the network device are sequentially correlated, and multiple PRACH transmission beams for repeated transmission are determined, wherein the M is the number of repeated transmissions of the PRACH, and the N is the number of SSBs actually sent by the network device , the N is greater than or equal to the M.
  • the determining the transmission beams of multiple PRACHs for repeated transmission according to the predefined rules and the indication information sent by the network device includes:
  • the network device receiving first indication information sent by the network device, where the first indication information is used to indicate a predefined rule used to determine multiple PRACH transmission beams for repeated transmission;
  • the transmission beams of multiple PRACHs for repeated transmission are determined.
  • the determining the sending beams of multiple PRACHs for repeated transmission according to the indication information sent by the network device includes:
  • the network device receiving second indication information sent by the network device, where the second indication information is used to indicate the SSB associated with the ROs in the RO group used to repeatedly transmit multiple PRACHs;
  • transmit beams of multiple PRACHs for repeated transmission are determined.
  • the second indication information includes indication information indicating an index of an SSB associated with an RO in the RO group; or,
  • the second indication information includes indication information indicating an index of an SSB association pattern corresponding to the RO group, and the SSB association pattern is predefined or indicated by a network device.
  • the embodiment of the present disclosure also provides a physical random access channel PRACH retransmission method, which is applied to network equipment, including:
  • the determining the multiple PRACH transmission beams for repeated transmission according to a predefined rule includes:
  • the transmission beams of multiple PRACHs for repeated transmission According to the correspondence between the random access channel opportunity RO group and the synchronization signal block SSB used for repeated transmission of multiple PRACHs, determine the transmission beams of multiple PRACHs for repeated transmission; or,
  • the SSB associated with the first RO in the RO group for repeated transmission of multiple PRACHs determine multiple PRACH transmit beams for repeated transmission
  • the sending beams of the multiple PRACHs in the repeated transmission are the same.
  • the determining the multiple PRACH transmission beams for repeated transmission according to a predefined rule includes:
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the multiple PRACHs for repeated transmission Transmit beams, including:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each RO corresponds to an SSB.
  • the SSB performs sequential association to determine the transmission beams of multiple PRACHs that are repeatedly transmitted.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the multiple PRACHs for repeated transmission Transmit beams, including:
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the repetition of the PRACH The number of times of transmission determines the transmission beams of multiple PRACHs for repeated transmission.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, and the SSB actually sent by the network device determine the transmission beams of multiple PRACHs that are repeatedly transmitted, including:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the SSB is in one-to-one correspondence with the RO, and the RO in the RO group and the actual sent by the network device
  • the SSB performs sequential association to determine the transmit beams of multiple PRACHs that are repeatedly transmitted, Wherein, the number of SSBs actually sent by the network device is equal to the number of repeated transmissions of the PRACH; or,
  • each SSB corresponds to M/N ROs, for the ROs in the RO group and the network device
  • the SSBs actually sent are sequentially correlated to determine multiple PRACH transmission beams for repeated transmission, wherein the M is the number of repeated transmissions of the PRACH, and the N is the number of SSBs actually sent by the network device. Said N is less than or equal to said M, and M/N is a positive integer; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each of the SSBs corresponds to RO, after Each of the SSBs corresponds to ROs, sequentially correlating the ROs in the RO group with the SSB actually sent by the network device, and determining multiple PRACH transmission beams for repeated transmission, where the M is the number of repeated transmissions of the PRACH, and the The N is the number of SSBs actually sent by the network device, and the N is less than or equal to the M; or,
  • each RO corresponds to N/M SSBs, and for the ROs in the RO group and the network device
  • the SSBs actually sent are sequentially correlated to determine multiple PRACH transmission beams for repeated transmission, wherein the M is the number of repeated transmissions of the PRACH, and the N is the number of SSBs actually sent by the network device. Said N is greater than or equal to said M, and N/M is a positive integer; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each RO in each RO corresponds to SSB, after Each RO in each RO corresponds to SSBs, sequentially correlate the ROs in the RO group with the SSBs actually sent by the network device, and determine multiple PRACH transmission beams for repeated transmission, where the M is the number of repeated transmissions of the PRACH, and The N is the number of SSBs actually sent by the network device, and the N is greater than or equal to the M.
  • the determining multiple PRACH transmission beams for repeated transmission according to predefined rules and indication information sent to the terminal includes:
  • the transmission beams of multiple PRACHs for repeated transmission are determined.
  • the determining the transmission beams of multiple PRACHs for repeated transmission according to the indication information sent to the terminal includes:
  • transmit beams of multiple PRACHs for repeated transmission are determined.
  • the second indication information includes indication information indicating an index of an SSB associated with an RO in the RO group; or,
  • the second indication information includes indication information indicating an index of an SSB association pattern corresponding to the RO group, where the SSB association pattern is predefined or indicated to the terminal by the network device.
  • an embodiment of the present disclosure further provides a terminal, including a memory, a transceiver, and a processor:
  • the memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:
  • the determining the multiple PRACH transmission beams for repeated transmission according to a predefined rule includes:
  • the transmission beams of multiple PRACHs for repeated transmission According to the correspondence between the random access channel opportunity RO group and the synchronization signal block SSB used for repeated transmission of multiple PRACHs, determine the transmission beams of multiple PRACHs for repeated transmission; or,
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs determine the transmission beams of the multiple PRACHs for repeated transmission;
  • the sending beams of the multiple PRACHs in the repeated transmission are the same.
  • the sending of multiple PRACHs that are repeatedly transmitted is determined according to a predefined rule Beams, including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission ,include:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each RO corresponds to an SSB.
  • the SSB performs sequential association to determine the transmission beams of multiple PRACHs that are repeatedly transmitted.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission ,include:
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the number of repeated transmissions of the PRACH determine Multiple PRACH transmit beams for repeated transmission.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the PRACH The number of repeated transmissions determines the transmission beams of multiple PRACHs for repeated transmissions, including:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the SSB is in one-to-one correspondence with the RO, and the RO in the RO group and the actual sent by the network device
  • the SSB performs sequential association to determine multiple PRACH transmission beams for repeated transmission, wherein the number of SSBs actually transmitted by the network device is equal to the number of repeated transmissions of the PRACH; or,
  • each SSB corresponds to M/N ROs, sequentially associate the ROs in the RO group with the SSBs actually sent by the network device, and determine the transmission beams of multiple PRACHs for repeated transmission, wherein,
  • the M is the number of repeated transmissions of the PRACH
  • the N is the number of SSBs actually sent by the network device
  • the N is less than or equal to the M
  • M/N is a positive integer
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each of the SSBs corresponds to RO, after Each of the SSBs corresponds to ROs, sequentially correlating the ROs in the RO group with the SSB actually sent by the network device, and determining multiple PRACH transmission beams for repeated transmission, where the M is the number of repeated transmissions of the PRACH, and the The N is the number of SSBs actually sent by the network device, and the N is less than or equal to the M; or,
  • each RO corresponds to N/M SSBs, and for the ROs in the RO group and the network device
  • the SSBs actually sent are sequentially correlated to determine multiple PRACH transmission beams for repeated transmission, wherein the M is the number of repeated transmissions of the PRACH, and the N is the number of SSBs actually sent by the network device. Said N is greater than or equal to said M, and N/M is a positive integer; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each RO in each RO corresponds to SSB, after Each RO in each RO corresponds to SSBs, sequentially correlate the ROs in the RO group with the SSBs actually sent by the network device, and determine multiple PRACH transmission beams for repeated transmission, where the M is the number of repeated transmissions of the PRACH, and The N is the number of SSBs actually sent by the network device, and the N is greater than or equal to the M.
  • the determining the transmission beams of multiple PRACHs for repeated transmission according to the predefined rules and the indication information sent by the network device includes:
  • the network device receiving first indication information sent by the network device, where the first indication information is used to indicate a predefined rule used to determine multiple PRACH transmission beams for repeated transmission;
  • the determining the sending beams of multiple PRACHs for repeated transmission according to the indication information sent by the network device includes:
  • the network device receiving second indication information sent by the network device, where the second indication information is used to indicate the SSB associated with the ROs in the RO group used to repeatedly transmit multiple PRACHs;
  • transmit beams of multiple PRACHs for repeated transmission are determined.
  • the second indication information includes indication information indicating an index of an SSB associated with an RO in the RO group; or,
  • the second indication information includes indication information indicating an index of an SSB association pattern corresponding to the RO group, and the SSB association pattern is predefined or indicated by a network device.
  • an embodiment of the present disclosure further provides a network device, including a memory, a transceiver, and a processor:
  • the memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:
  • the determining the multiple PRACH transmission beams for repeated transmission according to a predefined rule includes:
  • the transmission beams of multiple PRACHs for repeated transmission According to the correspondence between the random access channel opportunity RO group and the synchronization signal block SSB used for repeated transmission of multiple PRACHs, determine the transmission beams of multiple PRACHs for repeated transmission; or,
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs determine the transmission beams of the multiple PRACHs for repeated transmission;
  • the sending beams of the multiple PRACHs in the repeated transmission are the same.
  • the determining the multiple PRACH transmission beams for repeated transmission according to a predefined rule includes:
  • the network device determines the repeated transmission Transmission beams of multiple PRACHs.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the multiple PRACHs for repeated transmission Transmit beams, including:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each RO corresponds to an SSB.
  • the SSB performs sequential association to determine the transmission beams of multiple PRACHs that are repeatedly transmitted.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the multiple PRACHs for repeated transmission Transmit beams, including:
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the repetition of the PRACH The number of times of transmission determines the transmission beams of multiple PRACHs for repeated transmission.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, and the SSB actually sent by the network device determine the transmission beams of multiple PRACHs that are repeatedly transmitted, including:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the SSB is in one-to-one correspondence with the RO, and the RO in the RO group and the actual sent by the network device
  • the SSB performs sequential association to determine multiple PRACH transmission beams for repeated transmission, wherein the number of SSBs actually transmitted by the network device is equal to the number of repeated transmissions of the PRACH; or,
  • each SSB corresponds to M/N ROs, for the ROs in the RO group and the network device
  • the SSBs actually sent are sequentially correlated to determine multiple PRACH transmission beams for repeated transmission, where the M is the number of repeated transmissions of the PRACH, and the N is the number of repeated transmissions of the network settings.
  • the number of SSBs actually sent by the device the N is less than or equal to the M, and M/N is a positive integer; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each of the SSBs corresponds to RO, after Each of the SSBs corresponds to ROs, sequentially correlating the ROs in the RO group with the SSB actually sent by the network device, and determining multiple PRACH transmission beams for repeated transmission, where the M is the number of repeated transmissions of the PRACH, and the The N is the number of SSBs actually sent by the network device, and the N is less than or equal to the M; or,
  • each RO corresponds to N/M SSBs, and for the ROs in the RO group and the network device
  • the SSBs actually sent are sequentially correlated to determine multiple PRACH transmission beams for repeated transmission, wherein the M is the number of repeated transmissions of the PRACH, and the N is the number of SSBs actually sent by the network device. Said N is greater than or equal to said M, and N/M is a positive integer; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each RO in each RO corresponds to SSB, after Each RO in each RO corresponds to SSBs, sequentially correlate the ROs in the RO group with the SSBs actually sent by the network device, and determine multiple PRACH transmission beams for repeated transmission, where the M is the number of repeated transmissions of the PRACH, and The N is the number of SSBs actually sent by the network device, and the N is greater than or equal to the M.
  • the determining multiple PRACH transmission beams for repeated transmission according to predefined rules and indication information sent to the terminal includes:
  • the transmission beams of multiple PRACHs for repeated transmission are determined.
  • the determining the transmission beams of multiple PRACHs for repeated transmission according to the indication information sent to the terminal includes:
  • transmit beams of multiple PRACHs for repeated transmission are determined.
  • the second indication information includes indication information indicating an index of an SSB associated with an RO in the RO group; or,
  • the second indication information includes indication information indicating an index of an SSB association pattern corresponding to the RO group, where the SSB association pattern is predefined or indicated to the terminal by the network device.
  • the embodiment of the present disclosure also provides a physical random access channel PRACH retransmission device, which is applied to a terminal, including:
  • the first determining unit is configured to determine multiple PRACH transmission beams for repeated transmission according to predefined rules and/or indication information sent by the network device;
  • a sending unit configured to send the multiple PRACHs to the network device according to the sending beam.
  • the embodiment of the present disclosure also provides a physical random access channel PRACH retransmission device, which is applied to network equipment, including:
  • the second determination unit is configured to determine the transmission beams of multiple PRACHs for repeated transmission according to predefined rules and/or indication information sent to the terminal;
  • the receiving unit is configured to receive the multiple PRACHs sent by the terminal according to the sending beam.
  • the embodiment of the present disclosure also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and the computer program is used to make the computer execute the PRACH repetition described in the first aspect above The steps of the transmission method, or the steps of performing the PRACH repeated transmission method described in the second aspect above.
  • the embodiment of the present disclosure also provides a communication device, where a computer program is stored in the communication device, and the computer program is used to make the communication device perform the steps of the PRACH repeated transmission method described in the first aspect as described above , or execute the steps of the PRACH retransmission method described in the second aspect.
  • the embodiments of the present disclosure further provide a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to perform the above-mentioned first aspect.
  • the steps of the PRACH repeat transmission method, or perform the second aspect as described above The steps of the PRACH repeated transmission method.
  • the embodiment of the present disclosure also provides a chip product, the computer program is stored in the chip product, and the computer program is used to make the chip product execute the steps of the PRACH repeated transmission method described in the first aspect as described above , or execute the steps of the PRACH retransmission method described in the second aspect.
  • the terminal can determine multiple PRACH transmission beams for repeated transmission according to the predefined rules of the protocol and/or the indication information sent by the network device, so that the terminal can determine the multiple PRACH transmission beams according to the The determined transmission beams of each PRACH repeatedly transmit multiple PRACHs to the network device, thereby improving the coverage performance of the PRACH.
  • FIG. 1 is a schematic diagram of an RO configuration method provided by the prior art
  • FIG. 2 is a schematic diagram of a method for determining an uplink beam when a single PRACH is sent according to an embodiment of the present disclosure
  • Fig. 3 is one of the schematic flow charts of the PRACH repeated transmission method provided by the embodiment of the present disclosure
  • FIG. 4 is the second schematic flow diagram of the PRACH repeated transmission method provided by an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of an application scenario provided by an embodiment of the present disclosure.
  • Fig. 6 is one of the implementation schematic diagrams of the PRACH repeated transmission method provided by the embodiment of the present disclosure.
  • FIG. 7 is the second implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure.
  • FIG. 8 is the third implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure.
  • FIG. 9 is a fourth implementation schematic diagram of a PRACH repeated transmission method provided by an embodiment of the present disclosure.
  • FIG. 10 is the fifth implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure.
  • FIG. 11 is the sixth implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure.
  • FIG. 12 is the seventh implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure.
  • FIG. 13 is the eighth implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a network device provided by an embodiment of the present disclosure.
  • Fig. 16 is one of the structural schematic diagrams of the PRACH repeated transmission device provided by the embodiment of the present disclosure.
  • FIG. 17 is a second structural schematic diagram of a PRACH retransmission device provided by an embodiment of the present disclosure.
  • configuration information related to a Random Access Channel (Random Access Channel, RACH) is carried in a System Information Block 1 (System Information Block, SIB1) and sent by way of broadcast.
  • SIB1 System Information Block 1
  • the terminal can obtain the RACH configuration information by receiving SIB1, determine the appropriate random access channel opportunity (RACH Occasion, RO) according to the RACH configuration information, and send PRACH in RO to initiate random access.
  • RACH Occasion, RO random access channel opportunity
  • the method for a network device to configure/indicate RO time-frequency resources through SIB1 is roughly as follows:
  • FIG. 1 is a schematic diagram of the RO configuration method provided by the prior art. As shown in Figure 1, it is assumed that there are 4 SSBs in total; the number of frequency division ROs indicated by msg1-FDM is 4; each SSB is associated with 2 ROs (one SSB corresponds to multiple ROs); therefore, a complete SSB-to-RO association cycle includes 8 ROs, namely RO0-RO7.
  • the terminal can select an SSB that satisfies the access condition (for example, the RSRP of the SSB is greater than a threshold value) according to the measurement result of the Reference Signal Received Power (RSRP) of the SSB, and then The RO associated with the selected SSB sends PRACH to initiate random access. If one SSB is associated with multiple ROs, the terminal can randomly select one of the multiple ROs.
  • the access condition for example, the RSRP of the SSB is greater than a threshold value
  • RSRP Reference Signal Received Power
  • the existing NR protocol does not limit how to design the uplink beam of the terminal.
  • a possible implementation manner is that, according to the selected SSB, the terminal uses the receiving beam receiving the SSB as the sending beam of the PRACH, and sends the PRACH with this beam. This mainly utilizes the beam reciprocity between the uplink signal and the downlink signal.
  • FIG. 2 is a schematic diagram of a method for determining an uplink beam when a single transmission of PRACH is provided by an embodiment of the present disclosure.
  • the network device uses different beams to send SSB0, SSB1, SSB2, and SSB3, and the terminal has a receiving beam (Rx beam) 0.
  • the propagation loss of wireless signals increases, resulting in shortened signal transmission distances and reduced network coverage performance.
  • the uplink transmission that is, the transmission sent by the terminal and received by the network device, since the transmission power of the terminal is low, the coverage of the uplink channel is more limited than that of the downlink.
  • PRACH is an important uplink transmission channel in NR. Before accessing the network device and obtaining the communication service of the network device, the terminal needs to send a PRACH to initiate random access. Whether the network equipment can correctly detect the PRACH sent by the terminal is directly related to whether the terminal can successfully access the cell, so The coverage performance of PRACH is particularly important. For example, for a terminal located in an area with large fading such as a cell edge or a basement, the PRACH transmission loss is large, and it is especially necessary to enhance the coverage of the PRACH.
  • the PRACH of the existing NR does not support repeated transmission.
  • various embodiments of the present disclosure provide a solution to support repeated transmission of PRACH, and determine the transmission beams of multiple PRACHs for repeated transmission through protocol pre-definition and/or network device indication, so that the terminal can Determine the uplink beam when the PRACH is repeatedly sent, and the network device can also select an appropriate detection scheme according to the uplink beam of the repeatedly sent PRACH, such as performing signal combination on the PRACH of the same uplink beam and then performing coherent detection, and separately detecting the PRACH on different uplink beams. Coherent detection is performed and then the detection results are soft combined, so as to improve the detection performance of the repeatedly transmitted PRACH, thereby improving the PRACH coverage performance.
  • Figure 3 is one of the schematic flow diagrams of the PRACH repeated transmission method provided by the embodiment of the present disclosure, the method can be applied to the terminal, as shown in Figure 3, the method includes the following steps:
  • Step 300 according to the predefined rules and/or the instruction information sent by the network equipment, determine the transmission beams of multiple PRACHs for repeated transmission;
  • various embodiments of the present disclosure provide a solution to support repeated transmission of PRACH, wherein the terminal can determine the Multiple PRACH transmit beams for repeated transmission.
  • a beam is sometimes described as a spatial filter or spatial relation information.
  • an uplink beam when a terminal sends is called an uplink spatial filter, or an uplink beam when a network device sends
  • the downlink beam is called downlink spatial correlation information and so on. Accordingly, similar descriptions may be considered equivalent.
  • Step 301 Send multiple PRACHs to the network device according to the sending beam.
  • the terminal after the terminal determines multiple PRACH transmission beams for repeated transmission, it can repeatedly transmit multiple PRACHs to the network device according to the determined transmission beams of each PRACH, thereby improving the coverage performance of the PRACH.
  • the terminal can determine the transmission of multiple PRACHs for repeated transmission according to the predefined rules of the protocol and/or the indication information sent by the network device Beams, so that multiple PRACHs can be repeatedly sent to the network device according to the determined sending beams of each PRACH, thereby improving the coverage performance of the PRACH.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of multiple PRACHs for repeated transmission According to the correspondence between the random access channel opportunity RO group and the synchronization signal block SSB used for repeated transmission of multiple PRACHs, determine the transmission beams of multiple PRACHs for repeated transmission; or,
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs determine the transmission beams of the multiple PRACHs for repeated transmission;
  • the sending beams of the multiple PRACHs that are repeatedly transmitted are the same.
  • the terminal determines the transmission beams of multiple PRACHs for repeated transmission according to the predefined rules of the protocol. If the predefined rules stipulate that the transmission beams of multiple PRACHs for repeated transmissions are the same, in a possible implementation mode, the terminal can use Based on the correspondence between RO groups and SSBs that repeatedly transmit multiple PRACHs, determine the SSB corresponding to one RO group, and then determine the transmission beams of multiple PRACHs corresponding to the RO group; in another possible implementation, The terminal may determine the sending beams of the multiple PRACHs corresponding to the RO group according to the SSB associated with the first RO in the RO group used for repeated transmission of the multiple PRACHs.
  • the corresponding relationship between the RO group and the SSB can be indicated by the network device to the terminal, and the terminal can determine the SSB corresponding to an RO group according to the corresponding relationship between the RO group and the SSB, for example, SSB1, then the SSB1 can be received
  • the receiving beam is used as the sending beam of multiple PRACHs corresponding to the RO group.
  • the existing SSB-to-RO association method can be reused to indicate the SSB associated with the first RO in an RO group, and the terminal determines the ( The SSBs associated with other ROs except the first RO are the same as the SSBs associated with the first RO in the RO group, that is, they are all SSB1, then the receiving beam receiving the SSB1 can be used as multiple PRACHs corresponding to the RO group Among the multiple PRACHs, the sending beams of the other PRACHs except the first PRACH are the same as the sending beams of the first PRACH.
  • the network device does not need to indicate the associated SSB of each RO used for repeated transmission of multiple PRACHs, thereby reducing the indication overhead; Moreover, when a network device receives multiple PRACHs corresponding to one RO group, it can be assumed that the transmission beams of the PRACHs are all the same. Therefore, it is possible to perform signal combination and then coherent detection among the ROs of an RO group, which is simple to implement and can improve Detection performance.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the terminal determines the transmission beams of multiple PRACHs for repeated transmission according to the rules predefined in the protocol, which may be based on the SSB associated with the first RO in the RO group for repeated transmission of multiple PRACHs and the SSB actually sent by the network device.
  • the corresponding SSB index cyclic sequence determines multiple PRACH transmission beams for repeated transmission.
  • the SSB actually sent by the network device may be, for example, the SSB indicated by the network device by sending the indication information ssb-PositionsInBurst; it may also be one or more SSBs uniquely determined in other ways.
  • the SSB actually sent by the network device includes SSB0, SSB1, SSB2, and SSB3, and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device is 0-1-2-3-0-1-2-3-0- 1...
  • the SSB actually sent by the network device includes SSB0, SSB2 and SSB3, then the SSB index cycle sequence corresponding to the SSB actually sent by the network device is 0-2-3-0-2-3-0...
  • the terminal can determine the SSB associated with each RO in the RO group according to the SSB index cyclic sequence and the SSB associated with the first RO in the RO group, and then determine the multiple PRACH transmission beams corresponding to the RO group. It can be understood that the sending beams of the multiple PRACHs corresponding to the RO group determined in this manner may be different.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each RO corresponds to an SSB, and the ROs in the RO group are sequentially associated with the SSB actually sent by the network device to determine repeated transmission multiple PRACH transmit beams.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device is 0-1-2-3-0-1-2-3-0-1...
  • the RO group The SSB associated with the first RO in the group is SSB1
  • the SSB associated with the first RO is SSB1
  • the SSB associated with the second RO is SSB2
  • the SSB associated with the third RO is SSB3
  • the SSB associated with the fourth RO is SSB0
  • the SSB associated with the fifth RO is SSB1
  • the SSB associated with the sixth RO is SSB2.
  • the transmit beams of multiple PRACHs corresponding to the RO group can be determined according to the receive beams of the SSBs.
  • the network device does not need to indicate the associated SSB of each RO used for repeated transmission of multiple PRACHs, thereby reducing the indication overhead; and, although multiple PRACHs corresponding to one RO group
  • the transmit beams of the SSB can be different, but the association between the SSB and the RO is determined, so the transmit beam of the PRACH is also determined, and the network device can determine its optimal reception on each RO according to the transmit beam of the PRACH corresponding to each RO. beam, so as to obtain beam diversity gain, which has better robustness when the terminal moves rapidly.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the number of repeated transmissions of the PRACH determine Multiple PRACH transmit beams for repeated transmission.
  • the SSB index cyclic sequence corresponding to the SSB is combined with information such as the number of SSBs actually transmitted by the network device and the number of repeated transmissions of the PRACH to determine the transmission beams of the multiple PRACHs.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the repetition of the PRACH determines the transmission beams of multiple PRACHs that are repeatedly transmitted, including:
  • Method 1 According to the SSB index cycle sequence, the index of the SSB associated with the first RO in the RO group is used as the starting index, and the SSB corresponds to the RO one by one, and the ROs in the RO group are sequentially associated with the SSB actually sent by the network device. Determining multiple PRACH transmission beams for repeated transmission, wherein the number of SSBs actually transmitted by the network device is equal to the number of repeated transmissions of the PRACH; or,
  • Method 2 According to the SSB index cyclic sequence, the index of the SSB associated with the first RO in the RO group is used as the starting index, and each SSB corresponds to M/N ROs, and the ROs in the RO group and the SSB actually sent by the network device are calculated Sequence association, determining multiple PRACH transmission beams for repeated transmission, where M is the number of repeated transmissions of PRACH, N is the number of SSBs actually sent by the network device, N is less than or equal to M, and M/N is a positive integer; or,
  • Method 3 According to the SSB index cycle sequence, the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each of the SSBs corresponds to RO, after Each of the SSBs corresponds to The ROs in the RO group are sequentially associated with the SSBs actually sent by the network equipment to determine the transmission beams of multiple PRACHs that are repeatedly transmitted, where M is the number of repeated transmissions of the PRACH, and N is the number of SSBs actually sent by the network equipment number, N is less than or equal to M; or,
  • Method 4 According to the SSB index cyclic sequence, the index of the SSB associated with the first RO in the RO group is used as the starting index, and each RO corresponds to N/M SSBs, and the ROs in the RO group and the SSB actually sent by the network device are calculated Sequential association, determining multiple PRACH transmission beams for repeated transmission, where M is the number of repeated transmissions of PRACH, N is the number of SSBs actually sent by the network device, N is greater than or equal to M, and N/M is a positive integer; or,
  • Method 5 According to the SSB index cycle sequence, the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each RO in each RO corresponds to SSB, after Each RO in each RO corresponds to SSB, sequentially associate the ROs in the RO group with the SSBs actually sent by the network equipment, and determine the sending beams of multiple PRACHs that are repeatedly transmitted.
  • M is the number of repeated transmissions of the PRACH
  • N is the number of SSBs actually sent by the network device, and N is greater than or equal to M.
  • the number of SSBs actually sent by the network device is 4, and the SSB index cyclic sequence corresponding to the SSBs actually sent by the network device is 0-1-2-3-0-1-2-3-0-1...;
  • the number of repeated transmissions of PRACH is 4, that is, the RO group includes 4 ROs, and the SSB associated with the first RO in the RO group is SSB1 can start from the position where the index is 1 in the index cyclic sequence, and the SSB corresponds to the RO one by one, sequentially associate the ROs in the RO group with the SSBs actually sent by the network device, and determine the associated SSB of each RO in the RO group.
  • the SSB associated with the first RO is SSB1
  • the SSB associated with the second RO is SSB2
  • the SSB associated with the third RO is SSB3
  • the SSB associated with the fourth RO is SSB0.
  • each SSB corresponds to 2 ROs, sequentially associate the ROs in the RO group with the SSBs actually sent by the network device, and determine the SSB associated with each RO in the RO group, that is, the first RO and the second RO
  • the SSBs associated with the two ROs are both SSB1
  • the SSBs associated with the third RO and the fourth RO are both SSB2
  • Each SSB in the first two SSBs corresponds to two ROs, and the last two SSBs (namely SSB3 and SSB0)
  • Each SSB corresponds to 1 RO
  • the RO in the RO group is sequentially associated with the SSB actually sent by the network device.
  • Determine the SSB associated with each RO in the RO group that is, the SSB associated with the first RO and the second RO are both SSB1, the SSB associated with the third RO and the fourth RO are both SSB2, and the SSB associated with the fifth RO is The SSB is SSB3, and the SSB associated with the sixth RO is SSB0.
  • the number of SSBs actually sent by the network device is 4, and the SSB index cyclic sequence corresponding to the SSBs actually sent by the network device is 0-1 -2-3-0-1-2-3-0-1...;
  • the number of repeated transmissions of PRACH is 2, that is, the RO group includes 2 ROs, and the SSB associated with the first RO in the RO group is SSB1, then You can start from the position where the index is 1 in the index cyclic sequence, and each RO corresponds to 2 SSBs, sequentially associate the ROs in the RO group with the SSBs actually sent by the network device, and determine the SSB associated with each RO in the RO group, That is, the SSBs associated with the first RO are SSB1 and SSB2, and the SSBs associated with the second RO are SSB3 and SSB0.
  • the first RO corresponds to 2 SSBs
  • the last RO i.e. the second RO
  • the ROs are sequentially associated with the SSBs actually sent by the network device, and the SSBs associated with each RO in the RO group are determined, that is, the SSBs associated with the first RO are SSB1 and SSB2, and the SSBs associated with the second RO are SSB0.
  • the transmit beams of multiple PRACHs corresponding to the RO group can be determined according to the receive beams of the SSBs.
  • one of the multiple SSBs associated with the RO can be selected to determine the transmission beam of the PRACH when the PRACH is transmitted in the RO
  • the SSB with the smallest or largest index among the multiple SSBs may be selected according to the SSB index, or selected according to the RSRP of the SSB, or randomly selected with equal probability, etc., which are not limited here.
  • the network device does not need to The associated SSB of each RO that transmits multiple PRACHs is used to indicate, thereby reducing the indication overhead; and, although the transmission beams of multiple PRACHs corresponding to one RO group can be different, the association relationship between SSB and RO is determined, so The transmit beam of the PRACH is also determined.
  • the network device can determine its optimal receive beam on each RO according to the transmit beam of the PRACH corresponding to each RO, thereby obtaining beam diversity gain and having better robustness when the terminal moves rapidly. Stickiness.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the network device receiving first indication information sent by the network device, where the first indication information is used to indicate a predefined rule used to determine multiple PRACH transmission beams for repeated transmission;
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the network device may send the first indication information to the terminal, indicating which protocol predefined rules the terminal uses when determining the transmission beams of multiple PRACHs that are repeatedly transmitted.
  • the terminal may use the The indication in the first indication information, combined with the rules predefined by the protocol, determines the transmission beams of the multiple PRACHs for repeated transmission.
  • the first indication information may be carried and broadcast by the network device in a system message (such as SIB1).
  • SIB1 system message
  • the network device can send the first indication information to the terminal, indicating which predefined rule the terminal uses when determining multiple PRACH transmission beams for repeated transmission, so that only very few In the case of indicating overhead, the flexibility of using beams when repeatedly sending multiple PRACHs is improved.
  • determining multiple PRACH transmission beams for repeated transmission includes:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the network device may send second indication information to the terminal, where the second indication information is used to indicate the SSB associated with the RO in the RO group.
  • the second indication information may include indication information indicating the index of the SSB associated with the RO in the RO group.
  • the second indication information may also indicate the index of the SSB associated with the RO in the RO group by means other than the bitmap, which is not limited here.
  • the second indication information may include indication information indicating an index of an SSB association pattern corresponding to the RO group.
  • the SSB association pattern indicates the SSB pattern (pattern) associated with each RO in the RO group, so the SSB association pattern may indicate the SSB associated with each RO in the RO group.
  • the SSB association style may be predefined, or may be indicated by the network device, for example, indicated by the network device through system information broadcast.
  • the second indication information indicates the indexes of these SSB association patterns.
  • the predefined or network device indicates several SSB association patterns with a length of 4, such as:
  • pattern1 ⁇ SSB0-SSB1-SSB2-SSB3 ⁇ ;
  • pattern2 ⁇ SSB0-SSB3-SSB2-SSB1 ⁇ ;
  • the second indication information may indicate one of these SSB association patterns by indicating the index of the SSB association pattern.
  • an RO group includes 4 ROs.
  • the second indication information indicates pattern2, 4 ROs in the RO group
  • the ROs are respectively associated with SSB0, SSB3, SSB2, and SSB1 in turn.
  • the sending beams of the multiple PRACHs corresponding to the RO group may be determined according to the receiving beams receiving the SSBs.
  • the second indication information may be carried and broadcast by the network device in a system message (such as SIB1).
  • SIB1 system message
  • the network device can send the The second indication information indicates the SSB associated with the RO in the RO group for repeated transmission of multiple PRACHs, so that the terminal can determine the transmission beams of the multiple PRACHs for repeated transmission according to the SSB indicated by the second indication information, and according to the The transmission beam of each PRACH is determined, and multiple PRACHs are repeatedly sent to the network device, which improves the coverage performance of the PRACH; at the same time, the network device can determine its own optimal reception on each RO according to the transmission beam of the PRACH corresponding to each RO beam, so as to obtain beam diversity gain, which has better robustness when the terminal moves rapidly.
  • FIG. 4 is the second schematic flow diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure.
  • the method can be applied to a network device (such as a base station). As shown in FIG. 4, the method includes the following steps:
  • Step 400 according to predefined rules and/or indication information sent to the terminal, determine the transmission beams of multiple PRACHs for repeated transmission;
  • various embodiments of the present disclosure provide a solution to support repeated transmission of PRACH, wherein the terminal can determine the Multiple PRACH transmission beams for repeated transmission.
  • the network device may determine the transmission beam used by the terminal to repeatedly transmit multiple PRACHs according to predefined rules in the protocol and/or indication information sent to the terminal.
  • a beam is sometimes described as a spatial filter or spatial relation information.
  • an uplink beam when a terminal sends is called an uplink spatial filter, or an uplink beam when a network device sends
  • the downlink beam is called downlink spatial correlation information and so on. Accordingly, similar descriptions may be considered equivalent.
  • Step 401 Receive multiple PRACHs sent by the terminal according to the sending beam.
  • the network device After the network device determines the sending beams of the multiple PRACHs that are repeatedly transmitted, it can receive the multiple PRACHs that are repeatedly sent by the terminal according to the determined sending beams of each PRACH.
  • the network device can determine the transmission beam used by the terminal to repeatedly transmit multiple PRACHs according to the predefined rules of the protocol and/or the indication information sent to the terminal, so that the determined An appropriate detection scheme is selected for the transmission beam of the PRACH, thereby improving the detection performance of the repeatedly transmitted PRACH, thereby improving the PRACH coverage performance.
  • determine multiple PRACH transmission beams for repeated transmission include:
  • the transmission beams of multiple PRACHs for repeated transmission According to the correspondence between the random access channel opportunity RO group and the synchronization signal block SSB used for repeated transmission of multiple PRACHs, determine the transmission beams of multiple PRACHs for repeated transmission; or,
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs determine the transmission beams of the multiple PRACHs for repeated transmission;
  • the sending beams of the multiple PRACHs that are repeatedly transmitted are the same.
  • the network device determines the transmission beams of the multiple PRACHs that are repeatedly transmitted according to the predefined rules of the protocol. If the predefined rules stipulate that the transmission beams of the multiple PRACHs that are repeatedly transmitted are the same, in a possible implementation, the network device can According to the correspondence between the RO group and the SSB used to repeatedly transmit multiple PRACHs, determine the SSB corresponding to one RO group, and then determine the transmission beams of the multiple PRACHs corresponding to the RO group; another possible implementation In this method, the network device may determine the transmission beams of the multiple PRACHs corresponding to the RO group according to the SSB associated with the first RO in the RO group used for repeated transmission of the multiple PRACHs.
  • the correspondence between the RO group and the SSB is indicated by the network device to the terminal, and the network device can determine the SSB corresponding to an RO group according to the correspondence between the RO group and the SSB, such as SSB1, then the terminal can The receive beam receiving the SSB1 is used as the transmit beam of the multiple PRACHs corresponding to the RO group.
  • the existing SSB-to-RO association method can be reused to indicate the SSB associated with the first RO in an RO group, so that the network device can determine the RO according to the SSB associated with the first RO in the RO group, for example, SSB1
  • the SSBs associated with other ROs in the group are the same as the SSBs associated with the first RO in the RO group, that is, they are all SSB1, then the receiving beam that the terminal receives the SSB1 can be used as the corresponding RO group
  • the sending beams of multiple PRACHs, among the multiple PRACHs, the sending beams of other PRACHs except the first PRACH are the same as the sending beams of the first PRACH.
  • the network device does not need to indicate the associated SSB of each RO used for repeated transmission of multiple PRACHs, thereby reducing the indication overhead; and, the network device receives one RO group corresponding
  • the transmission beams of the PRACHs are the same, so the signals can be combined among the ROs of an RO group before proceeding.
  • Line coherent detection is simple to implement and can improve detection performance.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the network device determines the transmission beams of multiple PRACHs for repeated transmission according to the rules predefined in the protocol, which may be based on the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs, and the SSB actually sent by the network device
  • the corresponding SSB index cyclic sequence determines multiple PRACH transmission beams for repeated transmission.
  • the SSB actually sent by the network device may be, for example, the SSB indicated by the network device by sending the indication information ssb-PositionsInBurst; it may also be one or more SSBs uniquely determined in other ways.
  • the SSB actually sent by the network device includes SSB0, SSB1, SSB2, and SSB3, and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device is 0-1-2-3-0-1-2-3-0- 1...
  • the network device can determine the SSB associated with each RO in the RO group according to the SSB index cyclic sequence and the SSB associated with the first RO in the RO group, and then determine the transmission beams of multiple PRACHs corresponding to the RO group . It can be understood that the sending beams of the multiple PRACHs corresponding to the RO group determined in this manner may be different.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each RO corresponds to an SSB, and the ROs in the RO group are sequentially associated with the SSB actually sent by the network device to determine repeated transmission multiple PRACH transmit beams.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device is 0-1-2-3-0-1-2-3-0-1...
  • the RO group The SSB associated with the first RO in the group is SSB1
  • the SSB associated with the first RO is SSB1
  • the SSB associated with the second RO is SSB2
  • the SSB associated with the third RO is SSB3
  • the SSB associated with the fourth RO is SSB0
  • the SSB associated with the fifth RO is SSB1
  • the SSB associated with the sixth RO is SSB2.
  • the transmit beams of the multiple PRACHs corresponding to the RO group can be determined according to the receive beams of the SSBs received by the terminal.
  • the network device does not need to indicate the associated SSB of each RO used for repeated transmission of multiple PRACHs, thereby reducing the indication overhead; and, although multiple PRACHs corresponding to one RO group
  • the transmit beams of the SSB can be different, but the association between the SSB and the RO is determined, so the transmit beam of the PRACH is also determined, and the network device can determine its optimal reception on each RO according to the transmit beam of the PRACH corresponding to each RO. beam, so as to obtain beam diversity gain, which has better robustness when the terminal moves rapidly.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the number of repeated transmissions of the PRACH determine Multiple PRACH transmit beams for repeated transmission.
  • the network device can determine the transmission beams of multiple PRACHs that are repeatedly transmitted according to the rules predefined in the protocol, not only according to the SSB associated with the first RO in the RO group corresponding to the multiple PRACHs, but also according to the actual transmission beam of the network device.
  • the SSB index cyclic sequence corresponding to the SSB, and the number of SSBs actually transmitted by the network device and the number of repeated transmissions of the PRACH are integrated to determine the transmission beams of the multiple PRACHs.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the repetition of the PRACH determines the transmission beams of multiple PRACHs that are repeatedly transmitted, including:
  • Method 1 According to the SSB index cycle sequence, the index of the SSB associated with the first RO in the RO group is used as the starting index, and the SSB corresponds to the RO one by one, and the ROs in the RO group are sequentially associated with the SSB actually sent by the network device. Determining multiple PRACH transmission beams for repeated transmission, wherein the number of SSBs actually transmitted by the network device is equal to the number of repeated transmissions of the PRACH; or,
  • Method 2 According to the SSB index cyclic sequence, the index of the SSB associated with the first RO in the RO group is used as the starting index, and each SSB corresponds to M/N ROs, and the ROs in the RO group and the SSB actually sent by the network device are calculated Sequence association, determining multiple PRACH transmission beams for repeated transmission, where M is the number of repeated transmissions of PRACH, N is the number of SSBs actually sent by the network device, N is less than or equal to M, and M/N is a positive integer; or,
  • Method 3 According to the SSB index cycle sequence, the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each of the SSBs corresponds to RO, after Each of the SSBs corresponds to The ROs in the RO group are sequentially associated with the SSBs actually sent by the network equipment to determine the transmission beams of multiple PRACHs that are repeatedly transmitted, where M is the number of repeated transmissions of the PRACH, and N is the number of SSBs actually sent by the network equipment number, N is less than or equal to M; or,
  • Method 4 According to the SSB index cyclic sequence, the index of the SSB associated with the first RO in the RO group is used as the starting index, and each RO corresponds to N/M SSBs, and the ROs in the RO group and the SSB actually sent by the network device are calculated Sequential association, determining multiple PRACH transmission beams for repeated transmission, where M is the number of repeated transmissions of PRACH, N is the number of SSBs actually sent by the network device, N is greater than or equal to M, and N/M is a positive integer; or,
  • Method 5 According to the SSB index cycle sequence, the index of the SSB associated with the first RO in the RO group is used as the starting index, and the previous Each RO in each RO corresponds to SSB, after Each RO in each RO corresponds to SSB, sequentially associate the ROs in the RO group with the SSBs actually sent by the network equipment, and determine the transmission beams of multiple PRACHs that are repeatedly transmitted, where M is the number of repeated transmissions of the PRACH, and N is the number of SSBs actually sent by the network equipment Number, N greater than or equal to M.
  • the number of SSBs actually sent by the network device is 4, and the actual number of SSBs sent by the network device is 4.
  • the SSB index cyclic sequence corresponding to the SSB is 0-1-2-3-0-1-2-3-0-1...; assuming that the number of repeated transmissions of the PRACH is 4, that is, the RO group includes 4 ROs,
  • the SSB associated with the first RO in the RO group is SSB1, and it can start from the position where the index is 1 in the index cyclic sequence, and the SSB corresponds to the RO one by one, and sequentially associates the ROs in the RO group with the SSB actually sent by the network device.
  • the SSB associated with each RO in the RO group that is, the SSB associated with the first RO is SSB1, the SSB associated with the second RO is SSB2, the SSB associated with the third RO is SSB3, and the SSB associated with the fourth RO is SSB0.
  • each SSB corresponds to 2 ROs, sequentially associate the ROs in the RO group with the SSBs actually sent by the network device, and determine the SSB associated with each RO in the RO group, that is, the first RO and the second RO
  • the SSBs associated with the two ROs are both SSB1
  • the SSBs associated with the third RO and the fourth RO are both SSB2
  • Each SSB in the first two SSBs corresponds to two ROs, and the last two SSBs (namely SSB3 and SSB0)
  • Each SSB in the SSB corresponds to 1 RO
  • the ROs in the RO group are sequentially associated with the SSBs actually sent by the network device to determine the SSB associated with each RO in the RO group, that is, the SSB associated with the first RO and the second RO.
  • the SSBs are all SSB1, the SSBs associated with the third and fourth ROs are both SSB2, the SSBs associated with the fifth RO are SSB3, and the SSBs associated with the sixth RO are SSB0.
  • the SSB actually sent by the network device is SSB0, SSB1, SSB2 and SSB3, the number of SSBs actually sent by the network device is 4, and the SSB index cycle sequence corresponding to the SSBs actually sent by the network device is 0-1-2-3-0-1-2-3-0-1...
  • the number of repeated transmissions of PRACH is 2, that is, the RO group includes 2 ROs, and the SSB associated with the first RO in the RO group is SSB1, then it can start from the position with index 1 in the index cyclic sequence, and each RO corresponds to 2 SSBs, sequentially associate the ROs in the RO group with the SSBs actually sent by the network device, and determine the SSBs associated with each RO in the RO group, that is, the SSBs associated with the first RO are SSB1 and SSB2, and the SSBs associated with the second RO
  • the SSBs are SSB3 and SSB0.
  • the first RO corresponds to 2 SSBs
  • the last RO i.e. the second RO
  • the ROs are sequentially associated with the SSBs actually sent by the network device, and the SSBs associated with each RO in the RO group are determined, that is, the SSBs associated with the first RO are SSB1 and SSB2, and the SSBs associated with the second RO are SSB0.
  • the transmit beams of the multiple PRACHs corresponding to the RO group can be determined according to the receive beams of the SSBs received by the terminal.
  • one of the multiple SSBs associated with the RO can be selected to determine the transmission beam of the PRACH when the PRACH is transmitted in the RO
  • the SSB with the smallest or largest index among the multiple SSBs may be selected according to the SSB index, or selected according to the RSRP of the SSB, or randomly selected with equal probability, etc., which are not limited here.
  • the network device does not need to indicate the associated SSB of each RO used for repeated transmission of multiple PRACHs, thereby reducing the indication overhead; and, although multiple PRACHs corresponding to one RO group
  • the transmit beams of each RO can be different, but the association between SSB and RO is determined, so the transmit beam of PRACH is also determined, and the network device can determine its optimal connection on each RO according to the transmit beam of PRACH corresponding to each RO. Receive beams to obtain beam diversity gain and have better robustness when the terminal moves quickly.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the network device may send the first indication information to the terminal, indicating which protocol predefined rules the terminal uses when determining multiple PRACH transmission beams for repeated transmission, so that after the terminal receives the first indication information, it can According to the indication in the first indication information and in combination with the rules predefined in the protocol, the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the network device may determine the transmission beam used by the terminal to repeatedly transmit multiple PRACHs according to the first indication information sent to the terminal and in combination with rules predefined in the protocol.
  • the first indication information may be carried and broadcast by the network device in a system message (such as SIB1).
  • SIB1 system message
  • the network device can send the first indication information to the terminal, indicating which predefined rule the terminal uses when determining multiple PRACH transmission beams for repeated transmission, so that only very few In the case of indicating overhead, the flexibility of using beams when repeatedly sending multiple PRACHs is improved.
  • determine the transmission beams of multiple PRACHs for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the network device may send the second indication information to the terminal, where the second indication information is used to indicate the SSB associated with the RO in the RO group, so that after receiving the second indication information, the terminal may, according to the second indication information, The indication in , determine the transmission beams of multiple PRACHs for repeated transmission.
  • the network device may determine that the terminal repeatedly sends the Transmit beams used by multiple PRACHs.
  • the second indication information may include indication information indicating the index of the SSB associated with the RO in the RO group.
  • the second indication information may also indicate the index of the SSB associated with the RO in the RO group by means other than the bitmap, which is not limited here.
  • the second indication information may include indication information indicating an index of an SSB association pattern corresponding to the RO group.
  • the SSB association pattern indicates the SSB pattern (pattern) associated with each RO in the RO group, so the SSB association pattern may indicate the SSB associated with each RO in the RO group.
  • the SSB association style may be predefined, or may be indicated to the terminal by the network device, for example, indicated to the terminal by the network device through system information broadcast.
  • the second indication information indicates the indexes of these SSB association patterns.
  • the predefined or network device indicates several SSB association patterns with a length of 4, such as:
  • pattern1 ⁇ SSB0-SSB1-SSB2-SSB3 ⁇ ;
  • pattern2 ⁇ SSB0-SSB3-SSB2-SSB1 ⁇ ;
  • the second indication information may indicate one of these SSB association patterns by indicating the index of the SSB association pattern.
  • an RO group includes 4 ROs.
  • the second indication information indicates pattern2, 4 ROs in the RO group
  • the ROs are respectively associated with SSB0, SSB3, SSB2, and SSB1 in turn.
  • the second indication information may be carried and broadcast by the network device in a system message (such as SIB1).
  • SIB1 system message
  • the network device can send the The second indication information indicates the SSB associated with the RO in the RO group for repeated transmission of multiple PRACHs, so that the terminal can determine the transmission beams of the multiple PRACHs for repeated transmission according to the SSB indicated by the second indication information, and according to the The transmission beam of each PRACH is determined, and multiple PRACHs are repeatedly sent to the network device, which improves the coverage performance of the PRACH; at the same time, the network device can determine its own optimal reception on each RO according to the transmission beam of the PRACH corresponding to each RO beam, so as to obtain beam diversity gain, which has better robustness when the terminal moves rapidly.
  • the technical solution disclosed in this disclosure can be applied to 5G NR systems, including network equipment and terminals; it can also be applied to other systems, as long as the terminal needs to repeatedly send pilots for initial access.
  • FIG. 5 is a schematic diagram of an application scenario provided by an embodiment of the present disclosure.
  • multiple terminals including Terminal 1 and Terminal 2 initiate random access to a network device to apply for a wireless network connection service;
  • the network device receives the random access request from at least one terminal, and performs wireless service for it.
  • Data interaction and transmission are performed between the network device and Terminal 1 and Terminal 2 through wireless communication.
  • the involved network elements mainly include: network equipment, such as base station, gNB; terminal, such as user equipment, UE.
  • Embodiment 1 This embodiment introduces that the transmission beams of the multiple PRACHs that are repeatedly transmitted are determined in a predefined manner, and the transmission beams of the multiple PRACHs that are repeatedly transmitted are the same.
  • ROs used for repeatedly sending the PRACH are recorded as one RO group.
  • an RO group includes multiple ROs, and these ROs have different time domain resources; and (in a predefined manner) it is stipulated that one RO group corresponds to the same SSB, or the same multiple SSBs; In other words, all ROs in one RO group correspond to the same SSB, or the same multiple SSBs (for example, multiple ROs in one RO group respectively correspond to multiple SSBs, and the multiple SSBs are all SSB1).
  • the corresponding relationship between an RO group and the SSB may be indicated by the network device through SIB1.
  • Another description is to reuse the existing SSB-to-RO association method to indicate the association relationship between the SSB and the "first RO" in an RO group, and (in a predefined way) to stipulate that in an RO group (except The associated SSBs of other ROs other than the first RO are the same as the SSB associated with the first RO.
  • Two The two description methods are essentially equivalent.
  • the terminal From the perspective of beams for sending PRACHs, in one RO group corresponding to the same SSB, the terminal sends PRACHs in each RO, and the uplink beams used by each PRACH are the same.
  • FIG. 6 is one of the implementation schematic diagrams of the PRACH repeated transmission method provided by the embodiment of the present disclosure.
  • RO3-3 and the RO group corresponds to the same SSB (namely SSB1).
  • the terminal selects SSB1, and transmits PRACH in each RO in the RO group; the transmission beams of all PRACHs are the same.
  • the SSBs corresponding to the second to fourth ROs are the same as the SSBs corresponding to the first RO, or the transmission beams of the second to fourth PRACHs are the same as the transmission beams of the first PRACH.
  • FIG. 7 is the second implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure. As shown in FIG. 7 , it is assumed that one RO group includes 4 ROs are RO3 (the first RO), and RO3-1, RO3-2, and RO3-3, and the frequency domain positions of multiple ROs in the RO group may be different. It should be noted that, each embodiment of the present disclosure does not limit whether frequency domain positions of multiple ROs in one RO group are the same.
  • the beneficial effect of this embodiment is that the network device does not need to indicate the associated SSB of each RO, thereby reducing the indication overhead; and, when the network device receives multiple PRACHs corresponding to one RO group, it can be assumed that the transmission beams of the PRACHs are all It is the same, therefore, it is possible to combine signals among ROs of an RO group first and then perform coherent detection, which is simple to implement and can improve detection performance.
  • Embodiment 2 This embodiment introduces that the transmission beams of multiple PRACHs that are repeatedly transmitted are determined in a predefined manner, and the transmission beams of multiple PRACHs that are repeatedly transmitted may be different.
  • Embodiment 2-1 In the first method in this embodiment, the correspondence between ROs and SSBs in an RO group is determined according to the SSB actually sent by the network device and the SSB corresponding to the first RO.
  • the corresponding relationship between the first RO and SSB in an RO group can be indicated in SIB1 by reusing the existing SSB-to-RO association method; and except for the first RO, other ROs and SSB The corresponding relationship among them is determined according to the SSB corresponding to the first RO and the SSB index cyclic sequence of the SSB actually sent by the network device.
  • the SSB actually sent by the network device includes SSB0, SSB1, SSB2, and SSB3, and its SSB index cyclic sequence is 0-1-2-3-0-1-2-3-0-1...; if an RO group
  • the SSB corresponding to the first RO is SSB1, the SSB corresponding to the second RO is SSB2, the SSB corresponding to the third RO is SSB3, the SSB corresponding to the fourth RO is SSB0, and the SSB corresponding to the fifth RO is SSB1 , and so on.
  • FIG. 8 is the third implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure.
  • the SSBs actually sent by the network device are SSB0, SSB1, SSB2 and SSB3, and one RO group includes 6 ROs.
  • the SSB index corresponding to the first RO is indicated by the network device, and the SSB index corresponding to other ROs is based on the "SSB index cyclic sequence", starting with "the index of the SSB corresponding to the first RO” and proceeding in sequence
  • the association is determined, that is, the SSB corresponding to RO3 is SSB1, the SSB corresponding to RO3-1 is SSB2, the SSB corresponding to RO3-2 is SSB3, the SSB corresponding to RO3-3 is SSB0, the SSB corresponding to RO3-4 is SSB1, and the SSB corresponding to RO3-4 is SSB1.
  • the corresponding SSB of 5 is SSB2.
  • the beams for sending the PRACH in a certain RO may also be different.
  • the PRACH beams sent in multiple ROs corresponding to the same SSB should still be the same.
  • the PRACH beams sent by the terminal in RO3-1 should be the same as the PRACH beams sent in RO3-5.
  • Embodiment 2-2 In another method in this embodiment, the correspondence between ROs and SSBs in an RO group is based on the SSB actually sent by the network device, the SSB corresponding to the first RO, and the repetition of PRACH The number of transfers is determined.
  • the SSB corresponding to each RO needs to be determined according to the magnitude relationship between the number N of SSBs actually sent by the network device and the number M of repeated transmissions of the PRACH.
  • FIG. 9 is the fourth implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure. As shown in FIG. 9, the number N of SSBs is equal to 4, and the PRACH The number of repeated transmissions M is equal to 4, and the SSB corresponding to the first RO is indicated by the network device.
  • the method of reusing the existing SSB-to-RO association can be indicated in SIB1; while the corresponding relationship between other ROs and SSBs is based on the SSB index cycle sequence, starting with "the index of the SSB corresponding to the first RO"
  • the index is determined by sequential association (see embodiment 2-1), that is, the SSB corresponding to RO3 is SSB1, the SSB corresponding to RO3-1 is SSB2, the SSB corresponding to RO3-2 is SSB3, and the SSB corresponding to RO3-3 is SSB0 .
  • the number of SSBs is less than the number of ROs/PRACH repeated transmission times; in this case, each SSB corresponds to multiple ROs; the SSB corresponding to the first RO is indicated by the network device and can be repeated Use the existing SSB-to-RO association method to indicate in SIB1; and the corresponding relationship between other ROs and SSBs is based on the SSB index cycle sequence, and start with "the index of the SSB corresponding to the first RO", for sequence association determination, where:
  • FIG. 10 is the fifth implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure. As shown in FIG.
  • the number N of SSBs is equal to 3, and the number of PRACH repeated transmissions M If it is equal to 6, each SSB corresponds to 2 ROs, and the SSB corresponding to the first RO is indicated by the network device, and the existing SSB-to-RO association method can be reused to indicate in SIB1; while the correspondence between other ROs and SSBs
  • the relationship is determined according to the SSB index cyclic sequence, and the "index of the SSB corresponding to the first RO" is used as the starting index, and the sequential association is determined, that is, the SSB corresponding to RO3 is SSB1, and the SSB corresponding to RO3-1 is SSB1, RO3
  • the SSBs corresponding to -2 and RO3-3 are both SSB2, and the SSBs corresponding to RO3-4 and RO3-5 are both SSB0;
  • FIG. 11 is the sixth implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure.
  • the number N of SSBs is equal to 4, and the number of PRACH repeated transmissions M If it is equal to 6, each of the first 2 SSBs corresponds to 2 ROs, and each of the last 2 SSBs corresponds to 1 RO.
  • the SSB corresponding to the first RO is indicated by the network device, and the existing SSB-to-RO association can be reused.
  • the method is indicated in SIB1; the corresponding relationship between other ROs and SSBs is determined according to the SSB index cycle sequence, and the "index of the SSB corresponding to the first RO" is used as the starting index for sequential association determination, that is, RO3 corresponds to
  • the SSB of RO3-1 is SSB1
  • the SSB corresponding to RO3-1 is SSB1.
  • the SSBs corresponding to RO3-2 and RO3-3 are both SSB2
  • the SSBs corresponding to RO3-4 are SSB3
  • the SSBs corresponding to RO3-5 are SSB0.
  • the number of SSBs is greater than the number of ROs/PRACH repeated transmission times; in this case, each RO corresponds to multiple SSBs; the SSB corresponding to the first RO is indicated by the network device and can be repeated Use the existing SSB-to-RO association method to indicate in SIB1; the corresponding relationship between other SSBs and ROs is based on the SSB index cycle sequence, and start with "the index of the SSB corresponding to the first RO" as the starting index.
  • the sequence association is determined, where:
  • FIG. 12 is the seventh implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure. As shown in FIG.
  • the number N of SSBs is equal to 4, and the number of PRACH repeated transmissions M is equal to 2, each RO corresponds to 2 SSBs, the SSB corresponding to the first RO is indicated by the network device, and the existing SSB-to-RO association method can be reused to indicate in SIB1; and the correspondence between other ROs and SSBs , is determined according to the SSB index cycle sequence, and takes "the index of the SSB corresponding to the first RO" as the starting index to determine the sequence association, that is, the SSBs corresponding to RO3 are SSB1 and SSB2, and the SSBs corresponding to RO3-1 are SSB3 and SSB0;
  • FIG. 13 is the eighth implementation schematic diagram of the PRACH repeated transmission method provided by the embodiment of the present disclosure. As shown in FIG. 13, the number N of SSBs is equal to 3, and the number of PRACH repeated transmissions M If it is equal to 2, the first RO corresponds to 2 SSBs, and the last RO corresponds to 1 SSB.
  • the SSB corresponding to the first RO is indicated by the network device, and the existing SSB-to-RO association method can be reused in SIB1
  • the corresponding relationship between other ROs and SSBs is determined according to the SSB index cycle sequence, and the "index of the SSB corresponding to the first RO" is used as the starting index to perform sequential association, that is, the SSB corresponding to RO3 is SSB1
  • the SSB corresponding to SSB2 and RO3-1 is SSB0.
  • the terminal can select one of the corresponding multiple SSBs to determine the uplink beam. For example, the SSB with the smallest or largest index among the multiple SSBs can be selected according to the SSB index, or, according to the SSB The RSRP is selected, and so on.
  • the beneficial effect of this embodiment is that the network device does not need to indicate the associated SSB of each RO, thereby reducing the indication overhead; and, although the transmission beams of multiple PRACHs corresponding to an RO group may be different, the SSB and the RO's
  • the association relationship is definite, so the transmission beam of the PRACH is also definite.
  • the method in this embodiment can enable the network device to determine its optimal receiving beam on each RO according to the transmission beam of the PRACH corresponding to each RO, thereby obtaining Beam diversity gain, which has better robustness when the terminal moves quickly.
  • Embodiment 3 This embodiment introduces the determination of multiple PRACH transmission beams for repeated transmission through (semi-static) signaling indication, and the indication information indicates that one of the methods involved in Embodiment 1 and Embodiment 2 is used .
  • the network device may carry an indication information in the system information (such as SIB1), which is recorded as the first indication information, and the first indication information is used to indicate that when determining the SSB associated with an RO in an RO group, the above-mentioned predefined Which one of the method (such as embodiment 1, embodiment 2-1, embodiment 2-2).
  • SIB1 system information
  • the first indication information is used to indicate that when determining the SSB associated with an RO in an RO group, the above-mentioned predefined Which one of the method (such as embodiment 1, embodiment 2-1, embodiment 2-2).
  • the method for determining the SSB associated with an RO may refer to the content in the above-mentioned Embodiment 1 and Embodiment 2, and details are not repeated here.
  • the network device may instruct the terminal to use the same beam or different beams when repeatedly sending the PRACH according to its own needs. This embodiment improves the flexibility of using beams when repeatedly sending multiple PRACHs while only using very little indication overhead.
  • Embodiment 4 This embodiment introduces that the transmission beams of multiple PRACHs that are repeatedly transmitted are determined through (semi-static) signaling indication, and the indication information is used to indicate the SSBs corresponding to multiple repeated RO/PRACHs.
  • the indication information may be recorded as second indication information.
  • Embodiment 4-1 In the first method of this embodiment, the second indication information is used to directly indicate the SSB associated with each RO (equivalently, the second indication information indicates the uplink beam of the PRACH sent in each RO ).
  • the second indication information may indicate SSBs associated with multiple ROs through a bitmap (Bitmap).
  • Bitmap Each K bit in the Bitmap is used to indicate which of the 2 K SSBs a RO corresponds to.
  • the method in this embodiment indicates the SSBs associated with all ROs in an RO group.
  • the second indication information should include multiple Bitmaps, and each Bitmap corresponds to an RO group; or, the second indication information is a total Bitmap, and the total Bitmap can include multiple sub-Bitmaps, and a sub-Bitmap corresponds to One RO group (for example, the second indication information is a Bitmap with a total of 60 bits, and every 6 bits is a sub-Bitmap, indicating 10 Bitmaps of RO groups in total).
  • the second indication information may also indicate the SSB associated with multiple ROs in other ways, as long as the terminal can determine the corresponding SSB on each RO.
  • Embodiment 4-2 In the second method of this embodiment, the second indication information is used to indicate the association style between the SSB and each RO in the RO group.
  • the association pattern indicates the pattern (pattern) of the SSB associated with each RO of an RO group.
  • a pattern may indicate which SSB each RO is associated with.
  • the association style may be predefined, or may be indicated by the network device through system information broadcast. The second indication information indicates one of these multiple styles.
  • an RO group includes 4 ROs
  • several styles with a length of 4 can be predefined or broadcast, such as:
  • pattern1 ⁇ SSB0-SSB1-SSB2-SSB3 ⁇ ;
  • pattern2 ⁇ SSB0-SSB3-SSB2-SSB1 ⁇ ;
  • the four ROs in one RO group are respectively associated with SSB0, SSB3, SSB2, and SSB1 in sequence. Through this method, the SSB associated with each RO in an RO group can be determined.
  • the second indication information should include multiple style indication information, indicating multiple styles, and each RO group corresponds to a style; or, the second indication information indicates a general style indication information, and the total style
  • the pattern indicated by the instruction information includes several subpatterns, and one subpattern corresponds to one RO group (for example, the pattern indicated by the second instruction information is a pattern with a length of 40, and every 4 lengths is a subpattern, indicating a total of 10 RO groups style).
  • multiple patterns of different lengths may be predefined or broadcast by the network device, and the second indication information indicates one of these patterns.
  • the second indication information indicates one of these patterns.
  • the SSB associated with each RO in an RO group if the length of the RO group (the number of ROs in the RO group) is different from the indicated pattern length, the SSB associated with each RO in an RO group is determined by extending or truncating the indicated pattern.
  • predefined or broadcast notifications with several styles of length 4 such as:
  • pattern1 ⁇ SSB0-SSB1-SSB2-SSB3 ⁇ ;
  • pattern2 ⁇ SSB0-SSB3-SSB2-SSB1 ⁇ ;
  • the second indication information indicates pattern2, if an RO group includes 3 ROs, then the 3 ROs in the RO group can be associated with SSB0, SSB3, and SSB2 respectively (in a truncated manner, only the first 3 SSBs are used for association); If an RO group includes 6 ROs, the 6 ROs in the RO group can be associated with SSB0, SSB3, SSB2, SSB1, SSB0, and SSB3 in turn (in an extended manner, 6 SSBs are obtained through cyclic extension for association).
  • Embodiments 4-1 and 4-2 can also be combined with the existing SSB-to-RO association method.
  • the existing SSB-to-RO association method is only used to indicate the association relationship between the first RO and SSB, while the method in this embodiment is only used to indicate the association relationship between the second, third...RO and SSB .
  • the second indication information in this embodiment is still used to indicate the SSB associated with all ROs (including the first RO), but the SSB associated with the first RO indicated by the second indication information needs to be consistent with the existing SSB-to-RO
  • the SSB associated with the first RO indicated by the association method is the same.
  • FIG. 14 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
  • the terminal includes a memory 1420, a transceiver 1410, and a processor 1400; wherein, the processor 1400 and the memory 1420 may also be arranged physically separately.
  • the memory 1420 is used to store computer programs; the transceiver 1410 is used to send and receive data under the control of the processor 1400 .
  • the transceiver 1410 is used to receive and transmit data under the control of the processor 1400 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1400 and various circuits of the memory represented by the memory 1420 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described in this disclosure.
  • the bus interface provides the interface.
  • Transceiver 1410 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the user interface 1430 may also be an interface capable of connecting externally and internally to required devices, and the connected devices include but not limited to keypads, displays, speakers, microphones, joysticks, and the like.
  • the processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1420 can store data used by the processor 1400 when performing operations.
  • the processor 1400 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • the processor 1400 calls the computer program stored in the memory 1420 to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions, for example: according to predefined rules and/or instruction information sent by the network device, Determine the sending beams of the multiple PRACHs that are repeatedly transmitted; and send the multiple PRACHs to the network device according to the sending beams.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of multiple PRACHs for repeated transmission According to the correspondence between the random access channel opportunity RO group and the synchronization signal block SSB used for repeated transmission of multiple PRACHs, determine the transmission beams of multiple PRACHs for repeated transmission; or,
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs determine the transmission beams of the multiple PRACHs for repeated transmission;
  • the sending beams of the multiple PRACHs that are repeatedly transmitted are the same.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each RO corresponds to an SSB, and the ROs in the RO group are sequentially associated with the SSB actually sent by the network device to determine repeated transmission multiple PRACH transmit beams.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, and the SSB actually sent by the network device and the number of repeated transmissions of the PRACHs determine the transmission beams of the multiple PRACHs for repeated transmissions.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the repetition of the PRACH determines the transmission beams of multiple PRACHs that are repeatedly transmitted, including:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the SSB corresponds to the RO one by one, and the ROs in the RO group are sequentially associated with the SSB actually sent by the network device to determine repeated transmission multiple PRACH transmission beams, wherein the number of SSBs actually transmitted by the network device is equal to the number of repeated transmissions of the PRACH; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each SSB corresponds to M/N ROs, and the ROs in the RO group are sequentially associated with the SSBs actually sent by the network device.
  • M is the number of repeated transmissions of the PRACH
  • N is the number of SSBs actually sent by the network device
  • N is less than or equal to M
  • M/N is a positive integer
  • the index of the SSB associated with the first RO in the RO group is used as the starting index.
  • Each of the SSBs corresponds to RO, after Each of the SSBs corresponds to
  • the ROs in the RO group are sequentially associated with the SSBs actually sent by the network equipment to determine the transmission beams of multiple PRACHs that are repeatedly transmitted, where M is the number of repeated transmissions of the PRACH, and N is the number of SSBs actually sent by the network equipment number, N is less than or equal to M; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, each RO corresponds to N/M SSBs, and the ROs in the RO group are sequentially associated with the SSBs actually sent by the network device.
  • M is the number of repeated transmissions of the PRACH
  • N is the number of SSBs actually sent by the network device
  • N is greater than or equal to M
  • N/M is a positive integer
  • the index of the SSB associated with the first RO in the RO group is used as the starting index.
  • Each RO in each RO corresponds to SSB, after Each RO in each RO corresponds to SSB, sequentially associate the ROs in the RO group with the SSBs actually sent by the network equipment, and determine the transmission beams of multiple PRACHs that are repeatedly transmitted, where M is the number of repeated transmissions of the PRACH, and N is the number of SSBs actually sent by the network equipment Number, N greater than or equal to M.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the network device receiving first indication information sent by the network device, where the first indication information is used to indicate a predefined rule used to determine multiple PRACH transmission beams for repeated transmission;
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • determining multiple PRACH transmission beams for repeated transmission includes:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the second indication information includes indication information indicating the index of the SSB associated with the RO in the RO group; or,
  • the second indication information includes indication information indicating the index of the SSB association style corresponding to the RO group, where the SSB association style is predefined or indicated by the network device.
  • FIG. 15 is a schematic structural diagram of a network device provided by an embodiment of the present disclosure.
  • the network device includes a memory 1520, a transceiver 1510, and a processor 1500; wherein, the processor 1500 and the memory 1520 can also be arranged physically separately .
  • the memory 1520 is used to store computer programs; the transceiver 1510 is used to send and receive data under the control of the processor 1500 .
  • the transceiver 1510 is used to receive and transmit data under the control of the processor 1500 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1500 and various circuits of the memory represented by the memory 1520 are linked together.
  • the bus architecture can also integrate devices such as peripherals, voltage regulators, and power management circuits and so on are linked together, which are well known in the art, and thus will not be further described in this disclosure.
  • the bus interface provides the interface.
  • Transceiver 1510 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1520 can store data used by the processor 1500 when performing operations.
  • the processor 1500 may be a CPU, ASIC, FPGA or CPLD, and the processor may also adopt a multi-core architecture.
  • the processor 1500 calls the computer program stored in the memory 1520 to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions, for example: according to predefined rules and/or instruction information sent to the terminal, Determine the sending beams of the multiple PRACHs that are repeatedly transmitted; and receive the multiple PRACHs sent by the terminal according to the sending beams.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of multiple PRACHs for repeated transmission According to the correspondence between the random access channel opportunity RO group and the synchronization signal block SSB used for repeated transmission of multiple PRACHs, determine the transmission beams of multiple PRACHs for repeated transmission; or,
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs determine the transmission beams of the multiple PRACHs for repeated transmission;
  • the sending beams of the multiple PRACHs that are repeatedly transmitted are the same.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • each RO corresponds to an SSB, sequentially associate the ROs in the RO group with the SSBs actually sent by the network device, and determine the transmission beams of multiple PRACHs that are repeatedly transmitted.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the number of repeated transmissions of the PRACH determine Multiple PRACH transmit beams for repeated transmission.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the repetition of the PRACH determines the transmission beams of multiple PRACHs that are repeatedly transmitted, including:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the SSB corresponds to the RO one by one, and the ROs in the RO group are sequentially associated with the SSB actually sent by the network device to determine repeated transmission multiple PRACH transmission beams, wherein the number of SSBs actually transmitted by the network device is equal to the number of repeated transmissions of the PRACH; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each SSB corresponds to M/N ROs, and the ROs in the RO group are sequentially associated with the SSBs actually sent by the network device.
  • M is the number of repeated transmissions of the PRACH
  • N is the number of SSBs actually sent by the network device
  • N is less than or equal to M
  • M/N is a positive integer
  • the index of the SSB associated with the first RO in the RO group is used as the starting index.
  • Each of the SSBs corresponds to RO, after Each of the SSBs corresponds to
  • the ROs in the RO group are sequentially associated with the SSBs actually sent by the network equipment to determine the transmission beams of multiple PRACHs that are repeatedly transmitted, where M is the number of repeated transmissions of the PRACH, and N is the number of SSBs actually sent by the network equipment number, N is less than or equal to M; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, each RO corresponds to N/M SSBs, and the ROs in the RO group are sequentially associated with the SSBs actually sent by the network device.
  • M is the number of repeated transmissions of the PRACH
  • N is the number of SSBs actually sent by the network device
  • N is greater than or equal to M
  • N/M is a positive integer
  • the index of the SSB associated with the first RO in the RO group is used as the starting index.
  • Each RO in each RO corresponds to SSB, after Each RO in each RO corresponds to SSB, sequentially associate the ROs in the RO group with the SSBs actually sent by the network equipment, and determine the transmission beams of multiple PRACHs that are repeatedly transmitted, where M is the number of repeated transmissions of the PRACH, and N is the number of SSBs actually sent by the network equipment Number, N greater than or equal to M.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • determine the transmission beams of multiple PRACHs for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the second indication information includes indication information indicating the index of the SSB associated with the RO in the RO group; or,
  • the second indication information includes indication information indicating an index of an SSB association style corresponding to the RO group, where the SSB association style is predefined or indicated to the terminal by the network device.
  • FIG. 16 is one of the schematic structural diagrams of a PRACH repeated transmission device provided by an embodiment of the present disclosure.
  • the device can be applied to a terminal. As shown in FIG. 16 , the device includes:
  • the first determining unit 1600 is configured to determine multiple PRACH transmission beams for repeated transmission according to predefined rules and/or indication information sent by the network device;
  • the sending unit 1610 is configured to send multiple PRACHs to the network device according to the sending beam.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of multiple PRACHs for repeated transmission According to the correspondence between the random access channel opportunity RO group and the synchronization signal block SSB used for repeated transmission of multiple PRACHs, determine the transmission beams of multiple PRACHs for repeated transmission; or,
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs determine the transmission beams of the multiple PRACHs for repeated transmission;
  • the sending beams of the multiple PRACHs that are repeatedly transmitted are the same.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each RO corresponds to an SSB, and the ROs in the RO group are sequentially associated with the SSB actually sent by the network device to determine repeated transmission multiple PRACH transmit beams.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the device, the number of SSBs actually sent by the network device, and the number of repeated transmissions of the PRACH determine the transmission beams of multiple PRACHs that are repeatedly transmitted.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the repetition of the PRACH determines the transmission beams of multiple PRACHs that are repeatedly transmitted, including:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the SSB corresponds to the RO one by one, and the ROs in the RO group are sequentially associated with the SSB actually sent by the network device to determine repeated transmission multiple PRACH transmission beams, wherein the number of SSBs actually transmitted by the network device is equal to the number of repeated transmissions of the PRACH; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each SSB corresponds to M/N ROs, and the ROs in the RO group are sequentially associated with the SSBs actually sent by the network device.
  • M is the number of repeated transmissions of the PRACH
  • N is the number of SSBs actually sent by the network device
  • N is less than or equal to M
  • M/N is a positive integer
  • the index of the SSB associated with the first RO in the RO group is used as the starting index.
  • Each of the SSBs corresponds to RO, after Each of the SSBs corresponds to
  • the ROs in the RO group are sequentially associated with the SSBs actually sent by the network equipment to determine the transmission beams of multiple PRACHs that are repeatedly transmitted, where M is the number of repeated transmissions of the PRACH, and N is the number of SSBs actually sent by the network equipment number, N is less than or equal to M; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, each RO corresponds to N/M SSBs, and the ROs in the RO group are sequentially associated with the SSBs actually sent by the network device.
  • M is the number of repeated transmissions of the PRACH
  • N is the number of SSBs actually sent by the network device
  • N is greater than or equal to M
  • N/M is a positive integer
  • Loop sequence according to SSB index, starting with the index of the SSB associated with the first RO in the RO group index, front Each RO in each RO corresponds to SSB, after Each RO in each RO corresponds to SSB, sequentially associate the ROs in the RO group with the SSBs actually sent by the network equipment, and determine the transmission beams of multiple PRACHs that are repeatedly transmitted, where M is the number of repeated transmissions of the PRACH, and N is the number of SSBs actually sent by the network equipment Number, N greater than or equal to M.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the network device receiving first indication information sent by the network device, where the first indication information is used to indicate a predefined rule used to determine multiple PRACH transmission beams for repeated transmission;
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • determining multiple PRACH transmission beams for repeated transmission includes:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the second indication information includes indication information indicating the index of the SSB associated with the RO in the RO group; or,
  • the second indication information includes indication information indicating the index of the SSB association style corresponding to the RO group, where the SSB association style is predefined or indicated by the network device.
  • FIG. 17 is the second structural schematic diagram of the PRACH repeated transmission device provided by the embodiment of the present disclosure.
  • the device can be applied to network equipment. As shown in FIG. 17 , the device includes:
  • the second determination unit 1700 is configured to determine the transmission beams of multiple PRACHs for repeated transmission according to predefined rules and/or indication information sent to the terminal;
  • the receiving unit 1710 is configured to receive multiple PRACHs sent by the terminal according to the sending beam.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the RO group and the synchronization signal determines the transmission beams of multiple PRACHs for repeated transmission;
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs determine the transmission beams of the multiple PRACHs for repeated transmission;
  • the sending beams of the multiple PRACHs that are repeatedly transmitted are the same.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each RO corresponds to an SSB, and the ROs in the RO group are sequentially associated with the SSB actually sent by the network device to determine repeated transmission multiple PRACH transmit beams.
  • the SSB associated with the first RO in the RO group used for repeated transmission of multiple PRACHs and the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, determine the transmission beams of the multiple PRACHs for repeated transmission, including :
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the number of repeated transmissions of the PRACH determine Multiple PRACH transmit beams for repeated transmission.
  • the SSB index cyclic sequence corresponding to the SSB actually sent by the network device, the number of SSBs actually sent by the network device, and the repetition of the PRACH determines the transmission beams of multiple PRACHs that are repeatedly transmitted, including:
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and the SSB corresponds to the RO one by one, and the RO in the RO group and the SSB actually sent by the network device Perform sequential association to determine multiple PRACH transmission beams for repeated transmission, wherein the number of SSBs actually transmitted by the network device is equal to the number of repeated transmissions of the PRACH; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, and each SSB corresponds to M/N ROs, and the ROs in the RO group are sequentially associated with the SSBs actually sent by the network device.
  • M is the number of repeated transmissions of the PRACH
  • N is the number of SSBs actually sent by the network device
  • N is less than or equal to M
  • M/N is a positive integer
  • the index of the SSB associated with the first RO in the RO group is used as the starting index.
  • Each of the SSBs corresponds to RO, after Each of the SSBs corresponds to
  • the ROs in the RO group are sequentially associated with the SSBs actually sent by the network equipment to determine the transmission beams of multiple PRACHs that are repeatedly transmitted, where M is the number of repeated transmissions of the PRACH, and N is the number of SSBs actually sent by the network equipment number, N is less than or equal to M; or,
  • the index of the SSB associated with the first RO in the RO group is used as the starting index, each RO corresponds to N/M SSBs, and the ROs in the RO group are sequentially associated with the SSBs actually sent by the network device.
  • M is the number of repeated transmissions of the PRACH
  • N is the number of SSBs actually sent by the network device
  • N is greater than or equal to M
  • N/M is a positive integer
  • the index of the SSB associated with the first RO in the RO group is used as the starting index.
  • Each RO in each RO corresponds to SSB, after Each RO in each RO corresponds to SSB, sequentially associate the ROs in the RO group with the SSBs actually sent by the network equipment, and determine the transmission beams of multiple PRACHs that are repeatedly transmitted, where M is the number of repeated transmissions of the PRACH, and N is the number of SSBs actually sent by the network equipment Number, N greater than or equal to M.
  • determine multiple PRACH transmission beams for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • determine the transmission beams of multiple PRACHs for repeated transmission including:
  • the transmission beams of the multiple PRACHs for repeated transmission are determined.
  • the second indication information includes indication information indicating the index of the SSB associated with the RO in the RO group; or,
  • the second indication information includes indication information indicating an index of an SSB association style corresponding to the RO group, where the SSB association style is predefined or indicated to the terminal by the network device.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
  • the technical solution of the present disclosure is essentially or part of the contribution to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .
  • the embodiments of the present disclosure further provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program is used to make a computer execute the PRACH repeated transmission method provided by the foregoing embodiments.
  • the computer-readable storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.
  • magnetic storage such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor memory such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)
  • the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet Wireless business (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunications system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new air interface (New Radio, NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet Wireless business
  • long term evolution long term evolution
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • FDD frequency division duplex
  • TDD time division duplex
  • LTE-A Long term evolution advanced
  • the terminal involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • the name of the terminal may be different.
  • the terminal may be called a user equipment (User Equipment, UE).
  • the wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the radio access network (Radio Access Network, RAN)
  • core networks Core Network, CN
  • Radio Access Network, RAN Radio Access Network
  • wireless terminal equipment can be mobile terminal equipment, such as mobile phones (or called "cellular" phones) and computers with mobile terminal equipment, for example, can be portable, pocket, handheld, computer built-in or vehicle-mounted Mobile devices that exchange speech and/or data with the radio access network.
  • Wireless terminal equipment may also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), and a user device (user device), which are not limited in the embodiments of the present disclosure.
  • the network device involved in the embodiments of the present disclosure may be a base station, and the base station may include multiple cells that provide services for terminals.
  • the base station can also be called an access point, or it can be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names.
  • the network device can be used to interchange received over-the-air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • Network devices may also coordinate attribute management for the air interface.
  • the network device involved in the embodiment of the present disclosure may be a network device (Base Transceiver Station, BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA). ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long term evolution (long term evolution, LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), can also be a home evolved Node B (HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., are not limited in this embodiment of the present disclosure.
  • network devices may include centralized unit (centralized unit, CU) nodes and distributed unit (distributed unit, DU) nodes, and the centralized unit and distributed unit may also be
  • MIMO transmission can be Single User MIMO (Single User MIMO, SU-MIMO) or Multi-User MIMO (Multiple User MIMO, MU-MIMO).
  • MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission, etc.
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) having computer-usable program code embodied therein.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the processor-readable memory produce a manufacturing product, the instruction device realizes the functions specified in one or more procedures of the flow chart and/or one or more blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented
  • the executed instructions provide steps for implementing the functions specified in the procedure or procedures of the flowchart and/or the block or blocks of the block diagrams.

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Abstract

本公开实施例提供一种PRACH重复传输方法、设备、装置及存储介质，其中应用于终端，该方法包括：根据预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束；根据所述发送波束，向网络设备发送所述多个PRACH。通过本公开实施例提供的PRACH重复传输方法、设备、装置及存储介质，终端可以根据协议预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，从而可以根据所确定的各个PRACH的发送波束，向网络设备重复发送多个PRACH，提升了PRACH的覆盖性能。

Description

PRACH重复传输方法、设备、装置及存储介质
相关申请的交叉引用
本申请要求于2022年02月18日提交的申请号为202210153459.X，发明名称为“PRACH重复传输方法、设备、装置及存储介质”的中国专利申请的优先权，其通过引用方式全部并入本文。
技术领域
本公开涉及无线通信技术领域，尤其涉及一种PRACH重复传输方法、设备、装置及存储介质。
背景技术
物理随机接入信道(Physical Random Access Channel，PRACH)是新无线(New Radio，NR)中重要的上行传输信道。在接入网络设备(例如下一代B节点(next Generation Node B，gNB))、获得网络设备的通信服务之前，终端(也可称用户设备(User Equipment，UE))需要发送PRACH以发起随机接入。网络设备能否正确检测出终端发送的PRACH直接关系到终端能否顺利接入小区，因此PRACH的覆盖性能尤为重要。例如，处在小区边沿或者地下室等衰落较大的区域的终端，PRACH传输损耗大，尤其需要对PRACH进行覆盖增强。
发明内容
本公开实施例提供一种PRACH重复传输方法、设备、装置及存储介质，以提升PRACH的覆盖性能。
第一方面，本公开实施例提供一种物理随机接入信道PRACH重复传输方法，应用于终端，包括：
根据预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束；
根据所述发送波束，向网络设备发送所述多个PRACH。
可选地，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
其中，所述重复传输的多个PRACH的发送波束相同。
可选地，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际 发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述网络设备实际发送的SSB的个数等于所述PRACH的重复传输次数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M，且M/N为正整数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M，且N/M为正整数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对所述RO组中的RO和所述网 络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M。
可选地，所述根据预定义的规则和网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
接收网络设备发送的第一指示信息，所述第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
根据所述第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
可选地，所述根据网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
接收网络设备发送的第二指示信息，所述第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO所关联的SSB；
根据所述第二指示信息，确定重复传输的多个PRACH的发送波束。
可选地，所述第二指示信息包括指示所述RO组中的RO所关联的SSB的索引的指示信息；或者，
所述第二指示信息包括指示所述RO组对应的SSB关联样式的索引的指示信息，所述SSB关联样式为预定义的或网络设备指示的。
第二方面，本公开实施例还提供一种物理随机接入信道PRACH重复传输方法，应用于网络设备，包括：
根据预定义的规则和/或向终端发送的指示信息，确定重复传输的多个PRACH的发送波束；
根据所述发送波束，接收终端发送的所述多个PRACH。
可选地，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定 重复传输的多个PRACH的发送波束；
其中，所述重复传输的多个PRACH的发送波束相同。
可选地，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、所述网络设备实际发送的SSB所对应的SSB索引循环序列、所述网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、所述网络设备实际发送的SSB所对应的SSB索引循环序列、所述网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束， 其中，所述网络设备实际发送的SSB的个数等于所述PRACH的重复传输次数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M，且M/N为正整数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M，且N/M为正整数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M。
可选地，所述根据预定义的规则和向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
向终端发送第一指示信息，所述第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
根据所述第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
可选地，所述根据向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
向终端发送第二指示信息，所述第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO关联的SSB；
根据所述第二指示信息，确定重复传输的多个PRACH的发送波束。
可选地，所述第二指示信息包括指示所述RO组中的RO关联的SSB的索引的指示信息；或者，
所述第二指示信息包括指示所述RO组对应的SSB关联样式的索引的指示信息，所述SSB关联样式为预定义的或所述网络设备指示给终端的。
第三方面，本公开实施例还提供一种终端，包括存储器，收发机，处理器：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
根据预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束；
根据所述发送波束，向网络设备发送所述多个PRACH。
可选地，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
其中，所述重复传输的多个PRACH的发送波束相同。
可选地，所述根据预定义的规则，确定重复传输的多个PRACH的发送 波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述网络设备实际发送的SSB的个数等于所述PRACH的重复传输次数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索 引为起始索引，每个SSB对应M/N个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M，且M/N为正整数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M，且N/M为正整数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M。
可选地，所述根据预定义的规则和网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
接收网络设备发送的第一指示信息，所述第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
根据所述第一指示信息指示的预定义的规则，确定重复传输的多个 PRACH的发送波束。
可选地，所述根据网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
接收网络设备发送的第二指示信息，所述第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO所关联的SSB；
根据所述第二指示信息，确定重复传输的多个PRACH的发送波束。
可选地，所述第二指示信息包括指示所述RO组中的RO所关联的SSB的索引的指示信息；或者，
所述第二指示信息包括指示所述RO组对应的SSB关联样式的索引的指示信息，所述SSB关联样式为预定义的或网络设备指示的。
第四方面，本公开实施例还提供一种网络设备，包括存储器，收发机，处理器：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
根据预定义的规则和/或向终端发送的指示信息，确定重复传输的多个PRACH的发送波束；
根据所述发送波束，接收终端发送的所述多个PRACH。
可选地，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
其中，所述重复传输的多个PRACH的发送波束相同。
可选地，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的 多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、所述网络设备实际发送的SSB所对应的SSB索引循环序列、所述网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
可选地，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、所述网络设备实际发送的SSB所对应的SSB索引循环序列、所述网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述网络设备实际发送的SSB的个数等于所述PRACH的重复传输次数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设 备实际发送的SSB的个数，所述N小于或等于所述M，且M/N为正整数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M，且N/M为正整数；或者，
根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M。
可选地，所述根据预定义的规则和向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
向终端发送第一指示信息，所述第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
根据所述第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
可选地，所述根据向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
向终端发送第二指示信息，所述第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO关联的SSB；
根据所述第二指示信息，确定重复传输的多个PRACH的发送波束。
可选地，所述第二指示信息包括指示所述RO组中的RO关联的SSB的索引的指示信息；或者，
所述第二指示信息包括指示所述RO组对应的SSB关联样式的索引的指示信息，所述SSB关联样式为预定义的或所述网络设备指示给终端的。
第五方面，本公开实施例还提供一种物理随机接入信道PRACH重复传输装置，应用于终端，包括：
第一确定单元，用于根据预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束；
发送单元，用于根据所述发送波束，向网络设备发送所述多个PRACH。
第六方面，本公开实施例还提供一种物理随机接入信道PRACH重复传输装置，应用于网络设备，包括：
第二确定单元，用于根据预定义的规则和/或向终端发送的指示信息，确定重复传输的多个PRACH的发送波束；
接收单元，用于根据所述发送波束，接收终端发送的所述多个PRACH。
第七方面，本公开实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序用于使计算机执行如上所述第一方面所述的PRACH重复传输方法的步骤，或执行如上所述第二方面所述的PRACH重复传输方法的步骤。
第八方面，本公开实施例还提供一种通信设备，所述通信设备中存储有计算机程序，所述计算机程序用于使通信设备执行如上所述第一方面所述的PRACH重复传输方法的步骤，或执行如上所述第二方面所述的PRACH重复传输方法的步骤。
第九方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使处理器执行如上所述第一方面所述的PRACH重复传输方法的步骤，或执行如上所述第二方面 所述的PRACH重复传输方法的步骤。
第十方面，本公开实施例还提供一种芯片产品，所述芯片产品中存储有计算机程序，所述计算机程序用于使芯片产品执行如上所述第一方面所述的PRACH重复传输方法的步骤，或执行如上所述第二方面所述的PRACH重复传输方法的步骤。
本公开实施例提供的PRACH重复传输方法、设备、装置及存储介质，终端可以根据协议预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，从而可以根据所确定的各个PRACH的发送波束，向网络设备重复发送多个PRACH，提升了PRACH的覆盖性能。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是现有技术提供的RO配置方法示意图；
图2是本公开实施例提供的单次发送PRACH时上行波束的确定方法示意图；
图3是本公开实施例提供的PRACH重复传输方法的流程示意图之一；
图4是本公开实施例提供的PRACH重复传输方法的流程示意图之二；
图5是本公开实施例提供的应用场景示意图；
图6是本公开实施例提供的PRACH重复传输方法的实施示意图之一；
图7是本公开实施例提供的PRACH重复传输方法的实施示意图之二；
图8是本公开实施例提供的PRACH重复传输方法的实施示意图之三；
图9是本公开实施例提供的PRACH重复传输方法的实施示意图之四；
图10是本公开实施例提供的PRACH重复传输方法的实施示意图之五；
图11是本公开实施例提供的PRACH重复传输方法的实施示意图之六；
图12是本公开实施例提供的PRACH重复传输方法的实施示意图之七；
图13是本公开实施例提供的PRACH重复传输方法的实施示意图之八；
图14是本公开实施例提供的终端的结构示意图；
图15是本公开实施例提供的网络设备的结构示意图；
图16是本公开实施例提供的PRACH重复传输装置的结构示意图之一；
图17是本公开实施例提供的PRACH重复传输装置的结构示意图之二。
具体实施方式
本公开实施例中术语“和/或”，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。字符“/”一般表示前后关联对象是一种“或”的关系。
本公开实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，并不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
为了便于更加清晰地理解本公开各实施例，首先对本公开各实施例相关的一些技术内容进行介绍。
现有技术中，随机接入信道(Random Access Channel，RACH)相关的配置信息承载在系统信息块1(System Information Block，SIB1)中，通过广播的方式发送。终端可以通过接收SIB1获知其中的RACH配置信息，根据RACH配置信息确定合适的随机接入信道时机(RACH Occasion，RO)，并在RO中发送PRACH以发起随机接入。
具体地，网络设备通过SIB1配置/指示RO时频资源的方法大致为：
(1)通过prach-ConfigurationIndex指示PRACH的格式和RO的周期；
(2)通过msg1-FrequencyStart和msg1-FDM，指示RO的频域起始位置和频分的RO个数；
(3)通过ssb-perRACH-OccasionAndCB-PreamblesPerSSB，指示同步信 号块(Synchronization Signal Block，SSB)与RO之间的关联关系；SSB与RO之间，可以是一对一的关系，也可以是多对一的关系，也可以是一对多的关系。
图1为现有技术提供的RO配置方法示意图，如图1所示，假设共有4个SSB；msg1-FDM指示的频分的RO个数为4个；每个SSB与2个RO关联(一个SSB对应多个RO)；因此，一个完整的SSB-to-RO关联周期包括8个RO，分别为RO0～RO7。
从终端的角度，终端可以根据对SSB的参考信号接收功率(Reference Signal Received Power，RSRP)测量结果，选择一个满足接入条件的SSB(如该SSB的RSRP大于一个门限值)，并在该选择的SSB所关联的RO中发送PRACH以发起随机接入。若一个SSB关联多个RO，则终端可以在这多个RO中随机选择一个。
在单次发送PRACH时，现有NR协议并未限制终端的上行波束如何设计。但一种可能的实现方式是，终端根据所选择的SSB，把接收该SSB的接收波束作为PRACH的发送波束，并以此波束发送PRACH。这主要是利用了上行信号和下行信号之间的波束互易性。
图2为本公开实施例提供的单次发送PRACH时上行波束的确定方法示意图，如图2所示，假设网络设备使用不同波束发送SSB0、SSB1、SSB2和SSB3，终端具有接收波束(Rx beam)0、Rx beam 1和Rx beam 2；其中，SSB1是终端选择的最佳SSB；终端确定Rx beam 1是接收SSB1的最佳接收波束，由此也便把Rx beam 1作为其发送PRACH的波束。
伴随着无线系统部署频率的升高，无线信号的传播损耗加剧，导致信号的传输距离缩短、网络的覆盖性能下降。尤其对于上行传输，也即由终端发送、网络设备进行接收的传输，由于终端的发送功率较低，因此上行信道的覆盖范围相比下行更为受限。
PRACH是NR中重要的上行传输信道。在接入网络设备、获得网络设备的通信服务之前，终端需要发送PRACH以发起随机接入。网络设备能否正确检测出终端发送的PRACH直接关系到终端能否顺利接入小区，因此 PRACH的覆盖性能尤为重要。例如，处在小区边沿或者地下室等衰落较大的区域的终端，PRACH传输损耗大，尤其需要对PRACH进行覆盖增强。
然而，现有NR的PRACH并不支持重复传输。为了提升PRACH的覆盖性能，本公开各实施例提供一种支持PRACH重复传输的解决方案，通过协议预定义和/或网络设备指示的方式，确定重复传输的多个PRACH的发送波束，从而终端可以确定重复发送PRACH时的上行波束，而网络设备也可以根据重复发送的PRACH的上行波束选择合适的检测方案，例如对相同上行波束的PRACH进行信号合并再进行相干检测，对不同上行波束的PRACH分别进行相干检测再对各检测结果进行软合并，从而提升对重复发送的PRACH的检测性能，进而提升PRACH覆盖性能。
图3为本公开实施例提供的PRACH重复传输方法的流程示意图之一，该方法可应用于终端，如图3所示，该方法包括如下步骤：
步骤300、根据预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束；
具体地，为了提升PRACH的覆盖性能，本公开各实施例提供一种支持PRACH重复传输的解决方案，其中终端可以根据协议预定义的规则和/或网络设备(例如基站)发送的指示信息，确定重复传输的多个PRACH的发送波束。
需要说明的是，波束有时候也被描述为空间滤波器(spatial filter)或空间关联信息(spatial relation information)，例如把终端发送时的上行波束称为上行空间滤波器，或者网络设备发送时的下行波束称为下行空间关联信息等等。因此，类似的描述可以认为是等价的。
步骤301、根据发送波束，向网络设备发送多个PRACH。
具体地，终端确定重复传输的多个PRACH的发送波束后，便可以根据所确定的各个PRACH的发送波束，向网络设备重复发送多个PRACH，从而提升PRACH的覆盖性能。
本公开实施例提供的PRACH重复传输方法，终端可以根据协议预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送 波束，从而可以根据所确定的各个PRACH的发送波束，向网络设备重复发送多个PRACH，提升了PRACH的覆盖性能。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
其中，重复传输的多个PRACH的发送波束相同。
具体地，终端根据协议预定义的规则确定重复传输的多个PRACH的发送波束，若预定义的规则规定重复传输的多个PRACH的发送波束相同，一种可能的实现方式中，终端可以根据用于重复传输多个PRACH的RO组与SSB之间的对应关系，确定一个RO组所对应的SSB，进而确定该RO组所对应的多个PRACH的发送波束；另一种可能的实现方式中，终端可以根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定该RO组所对应的多个PRACH的发送波束。
例如，RO组与SSB之间的对应关系可以由网络设备指示给终端，终端根据RO组与SSB之间的对应关系确定一个RO组所对应的SSB，例如为SSB1，则可以把接收该SSB1的接收波束作为该RO组所对应的多个PRACH的发送波束。
又例如，可以复用现有SSB-to-RO关联方法指示一个RO组中首个RO关联的SSB，终端根据该RO组中首个RO关联的SSB，例如为SSB1，确定该RO组中(除首个RO外的)其他RO关联的SSB均与该RO组中首个RO关联的SSB相同，即都为SSB1，则可以把接收该SSB1的接收波束作为该RO组所对应的多个PRACH的发送波束，该多个PRACH中，除首个PRACH外的其他PRACH的发送波束都与首个PRACH的发送波束相同。
本公开实施例提供的PRACH重复传输方法，网络设备不需要对用于重复传输多个PRACH的每个RO的关联SSB进行指示，从而减少了指示开销； 并且，网络设备接收一个RO组所对应的多个PRACH时可以假设PRACH的发送波束都相同，因此可以先在一个RO组的各RO间先进行信号合并再进行相干检测，实现简单，并可以提高检测性能。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
具体地，终端根据协议预定义的规则确定重复传输的多个PRACH的发送波束，可以是根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。网络设备实际发送的SSB，例如可以是网络设备通过发送指示信息ssb-PositionsInBurst所指示的SSB；也可以是以其他方式唯一确定的一个或多个SSB。
例如，网络设备实际发送的SSB包括SSB0、SSB1、SSB2和SSB3，则网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-3-0-1-2-3-0-1……，再例如，网络设备实际发送的SSB包括SSB0、SSB2和SSB3，则网络设备实际发送的SSB所对应的SSB索引循环序列为0-2-3-0-2-3-0……，终端可以根据该SSB索引循环序列以及RO组中首个RO关联的SSB，确定该RO组中每个RO关联的SSB，进而确定该RO组所对应的多个PRACH的发送波束。可以理解，这种方式确定的该RO组所对应的多个PRACH的发送波束可以不同。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
具体地，一种可能的实现方式中，假设网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-3-0-1-2-3-0-1……，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，每个RO对应一个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定该RO组中每个RO关联的SSB，例如，该RO组中包括6个RO，则首个RO关联的SSB为SSB1，第2个RO关联的SSB为SSB2，第3个RO关联的SSB为SSB3，第4个RO关联的SSB为SSB0，第5个RO关联的SSB为SSB1，第6个RO关联的SSB为SSB2。
在确定该RO组中每个RO关联的SSB之后，便可以根据接收各SSB的接收波束，确定该RO组所对应的多个PRACH的发送波束。
本公开实施例提供的PRACH重复传输方法，网络设备不需要对用于重复传输多个PRACH的每个RO的关联SSB进行指示，从而减少了指示开销；并且，尽管一个RO组对应的多个PRACH的发送波束可以不同，但SSB与RO的关联关系是确定的，因此PRACH的发送波束也是确定的，网络设备可以根据每个RO对应的PRACH的发送波束确定自己在每个RO上的最优接收波束，从而获得波束分集增益，在终端快速移动时具有更好的鲁棒性。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
具体地，终端可以根据协议预定义的规则，在确定重复传输的多个PRACH的发送波束时，不仅根据该多个PRACH所对应的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，同时还综合网络设备实际发送的SSB的个数以及PRACH的重复传输次数等信息，来确定该多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
方式1：根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，网络设备实际发送的SSB的个数等于PRACH的重复传输次数；或者，
方式2：根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M，且M/N为正整数；或者，
方式3：根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M；或者，
方式4：根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M，且N/M为正整数；或者，
方式5：根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其 中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M。
具体地，对于方式1，假设网络设备实际发送的SSB为SSB0、SSB1、SSB2和SSB3，则网络设备实际发送的SSB的个数为4，网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-3-0-1-2-3-0-1……；假设PRACH的重复传输次数为4，即RO组中包括4个RO，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，SSB与RO一一对应，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定该RO组中每个RO关联的SSB，即首个RO关联的SSB为SSB1，第2个RO关联的SSB为SSB2，第3个RO关联的SSB为SSB3，第4个RO关联的SSB为SSB0。
对于方式2，假设网络设备实际发送的SSB为SSB0、SSB1和SSB2，则网络设备实际发送的SSB的个数为3，网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-0-1-2-0-1……；假设PRACH的重复传输次数为6，即RO组中包括6个RO，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，每个SSB对应2个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定该RO组中每个RO关联的SSB，即首个RO和第2个RO关联的SSB均为SSB1，第3个RO和第4个RO关联的SSB均为SSB2，第5个RO和第6个RO关联的SSB均为SSB0。
对于方式3，其中，表示对M/N的值向下取整，表示对M/N的值向上取整，假设网络设备实际发送的SSB为SSB0、SSB1、SSB2和SSB3，则网络设备实际发送的SSB的个数为4，网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-3-0-1-2-3-0-1……；假设PRACH的重复传输次数为6，即RO组中包括6个RO，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，前2个SSB(即SSB1和SSB2)中每个SSB均对应2个RO，后2个SSB(即SSB3和SSB0)中每个SSB均对应1个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联， 确定该RO组中每个RO关联的SSB，即首个RO和第2个RO关联的SSB均为SSB1，第3个RO和第4个RO关联的SSB均为SSB2，第5个RO关联的SSB为SSB3，第6个RO关联的SSB为SSB0。
对于方式4，假设网络设备实际发送的SSB为SSB0、SSB1、SSB2和SSB3，则网络设备实际发送的SSB的个数为4，网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-3-0-1-2-3-0-1……；假设PRACH的重复传输次数为2，即RO组中包括2个RO，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，每个RO对应2个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定该RO组中每个RO关联的SSB，即首个RO关联的SSB为SSB1和SSB2，第2个RO关联的SSB为SSB3和SSB0。
对于方式5，其中，表示对N/M的值向下取整，表示对N/M的值向上取整，假设网络设备实际发送的SSB为SSB0、SSB1和SSB2，则网络设备实际发送的SSB的个数为3，网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-0-1-2-0-1……；假设PRACH的重复传输次数为2，即RO组中包括2个RO，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，前1个RO(即首个RO)对应2个SSB，后1个RO(即第2个RO)对应1个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定该RO组中每个RO关联的SSB，即首个RO关联的SSB为SSB1和SSB2，第2个RO关联的SSB为SSB0。
在确定该RO组中每个RO关联的SSB之后，便可以根据接收各SSB的接收波束，确定该RO组所对应的多个PRACH的发送波束。
需要说明的是，对于上述方式4和方式5，若某个RO关联的SSB为多个，则在该RO中发送PRACH时可以选择该RO关联的多个SSB中的一个来确定PRACH的发送波束，例如，可以根据SSB索引选择该多个SSB中索引最小或最大的SSB，或者，根据SSB的RSRP进行选择，或者进行等概率随机选择，等等，在此不做限定。
本公开实施例提供的PRACH重复传输方法，网络设备不需要对用于重 复传输多个PRACH的每个RO的关联SSB进行指示，从而减少了指示开销；并且，尽管一个RO组对应的多个PRACH的发送波束可以不同，但SSB与RO的关联关系是确定的，因此PRACH的发送波束也是确定的，网络设备可以根据每个RO对应的PRACH的发送波束确定自己在每个RO上的最优接收波束，从而获得波束分集增益，在终端快速移动时具有更好的鲁棒性。
可选地，根据预定义的规则和网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
接收网络设备发送的第一指示信息，第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
根据第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
具体地，网络设备可以向终端发送第一指示信息，指示终端在确定重复传输的多个PRACH的发送波束时使用哪种协议预定义的规则，终端接收到该第一指示信息后，便可以根据第一指示信息中的指示，结合协议预定义的规则，确定重复传输的多个PRACH的发送波束。
可选地，第一指示信息可以是网络设备在系统消息(如SIB1)中承载和广播的。
本公开实施例提供的PRACH重复传输方法，网络设备可以向终端发送第一指示信息，指示终端在确定重复传输的多个PRACH的发送波束时使用哪种预定义的规则，从而在仅使用非常少的指示开销的情况下，提升了重复发送多个PRACH时使用波束的灵活性。
可选地，根据网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
接收网络设备发送的第二指示信息，第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO所关联的SSB；
根据第二指示信息，确定重复传输的多个PRACH的发送波束。
具体地，网络设备可以向终端发送第二指示信息，该第二指示信息用于指示RO组中的RO所关联的SSB。
可选地，第二指示信息可以包括指示RO组中的RO所关联的SSB的索引的指示信息。例如，第二指示信息可以通过比特位图(Bitmap)指示多个RO关联的SSB，假设一共有4个SSB，分别为SSB0、SSB1、SSB2和SSB3，假设一个Bitmap＝“001110”的第二指示信息，Bitmap中的每2个比特用于指示一个RO对应4个SSB中的哪一个SSB，则其可以指示一个RO组中的第1个RO关联SSB0(00)，第2个RO关联SSB3(11)，第3个RO关联SSB2(10)。需要说明的是，第二指示信息也可以通过比特位图以外的其他方式指示RO组中的RO所关联的SSB的索引，在此不做限制。
可选地，第二指示信息可以包括指示RO组对应的SSB关联样式的索引的指示信息。SSB关联样式表示的是RO组的各RO所关联的SSB的样式(pattern)，因此SSB关联样式可以指示RO组中的各RO所关联的SSB。其中，SSB关联样式可以是预定义的，也可以是网络设备指示的，例如网络设备通过系统信息广播指示的。第二指示信息则指示这些SSB关联样式的索引。
例如，假设预定义或网络设备指示的是若干长度为4的SSB关联样式，如：
pattern1＝{SSB0-SSB1-SSB2-SSB3}；
pattern2＝{SSB0-SSB3-SSB2-SSB1}；
pattern3＝{SSB0-SSB0-SSB3-SSB3}；
……。
则第二指示信息可以通过指示SSB关联样式的索引的方式指示这些SSB关联样式中的其中一个，假设一个RO组中包括4个RO，当第二指示信息指示pattern2时，该RO组中的4个RO依次分别与SSB0、SSB3、SSB2、SSB1关联。
根据第二指示信息确定RO组中的RO所关联的SSB之后，便可以根据接收各SSB的接收波束，确定该RO组所对应的多个PRACH的发送波束。
可选地，第二指示信息可以是网络设备在系统消息(如SIB1)中承载和广播的。
本公开实施例提供的PRACH重复传输方法，网络设备可以向终端发送 第二指示信息，指示用于重复传输多个PRACH的RO组中的RO所关联的SSB，从而终端可以根据第二指示信息指示的SSB，确定重复传输的多个PRACH的发送波束，并根据所确定的各个PRACH的发送波束，向网络设备重复发送多个PRACH，提升了PRACH的覆盖性能；同时，网络设备可以根据每个RO对应的PRACH的发送波束确定自己在每个RO上的最优接收波束，从而获得波束分集增益，在终端快速移动时具有更好的鲁棒性。
图4为本公开实施例提供的PRACH重复传输方法的流程示意图之二，该方法可应用于网络设备(例如基站)，如图4所示，该方法包括如下步骤：
步骤400、根据预定义的规则和/或向终端发送的指示信息，确定重复传输的多个PRACH的发送波束；
具体地，为了提升PRACH的覆盖性能，本公开各实施例提供一种支持PRACH重复传输的解决方案，其中终端可以根据协议预定义的规则和/或网络设备(例如基站)发送的指示信息，确定重复传输的多个PRACH的发送波束，相应地，网络设备可以根据协议预定义的规则和/或向终端发送的指示信息，确定终端重复发送多个PRACH所使用的发送波束。
需要说明的是，波束有时候也被描述为空间滤波器(spatial filter)或空间关联信息(spatial relation information)，例如把终端发送时的上行波束称为上行空间滤波器，或者网络设备发送时的下行波束称为下行空间关联信息等等。因此，类似的描述可以认为是等价的。
步骤401、根据发送波束，接收终端发送的多个PRACH。
具体地，网络设备确定重复传输的多个PRACH的发送波束后，便可以根据所确定的各个PRACH的发送波束，接收终端重复发送的多个PRACH。
本公开实施例提供的PRACH重复传输方法，网络设备可以根据协议预定义的规则和/或向终端发送的指示信息，确定终端重复发送多个PRACH所使用的发送波束，从而可以根据所确定的各个PRACH的发送波束，选择合适的检测方案，从而提升对重复发送的PRACH的检测性能，进而提升PRACH覆盖性能。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束， 包括：
根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
其中，重复传输的多个PRACH的发送波束相同。
具体地，网络设备根据协议预定义的规则确定重复传输的多个PRACH的发送波束，若预定义的规则规定重复传输的多个PRACH的发送波束相同，一种可能的实现方式中，网络设备可以根据用于重复传输多个PRACH的RO组与SSB之间的对应关系，确定一个RO组所对应的SSB，进而确定该RO组所对应的多个PRACH的发送波束；另一种可能的实现方式中，网络设备可以根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定该RO组所对应的多个PRACH的发送波束。
例如，RO组与SSB之间的对应关系是由网络设备指示给终端的，网络设备可以根据RO组与SSB之间的对应关系确定一个RO组所对应的SSB，例如为SSB1，则可以把终端接收该SSB1的接收波束作为该RO组所对应的多个PRACH的发送波束。
又例如，可以复用现有SSB-to-RO关联方法指示一个RO组中首个RO关联的SSB，从而网络设备可以根据该RO组中首个RO关联的SSB，例如为SSB1，确定该RO组中(除首个RO外的)其他RO关联的SSB均与该RO组中首个RO关联的SSB相同，即都为SSB1，则可以把终端接收该SSB1的接收波束作为该RO组所对应的多个PRACH的发送波束，该多个PRACH中，除首个PRACH外的其他PRACH的发送波束都与首个PRACH的发送波束相同。
本公开实施例提供的PRACH重复传输方法，网络设备不需要对用于重复传输多个PRACH的每个RO的关联SSB进行指示，从而减少了指示开销；并且，网络设备接收一个RO组所对应的多个PRACH时可以假设PRACH的发送波束都相同，因此可以先在一个RO组的各RO间先进行信号合并再进 行相干检测，实现简单，并可以提高检测性能。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
具体地，网络设备根据协议预定义的规则确定重复传输的多个PRACH的发送波束，可以是根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。网络设备实际发送的SSB，例如可以是网络设备通过发送指示信息ssb-PositionsInBurst所指示的SSB；也可以是以其他方式唯一确定的一个或多个SSB。
例如，网络设备实际发送的SSB包括SSB0、SSB1、SSB2和SSB3，则网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-3-0-1-2-3-0-1……，网络设备可以根据该SSB索引循环序列以及RO组中首个RO关联的SSB，确定该RO组中每个RO关联的SSB，进而确定该RO组所对应的多个PRACH的发送波束。可以理解，这种方式确定的该RO组所对应的多个PRACH的发送波束可以不同。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
具体地，一种可能的实现方式中，假设网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-3-0-1-2-3-0-1……，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，每个RO对应一个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定该 RO组中每个RO关联的SSB，例如，该RO组中包括6个RO，则首个RO关联的SSB为SSB1，第2个RO关联的SSB为SSB2，第3个RO关联的SSB为SSB3，第4个RO关联的SSB为SSB0，第5个RO关联的SSB为SSB1，第6个RO关联的SSB为SSB2。
在确定该RO组中每个RO关联的SSB之后，便可以根据终端接收各SSB的接收波束，确定该RO组所对应的多个PRACH的发送波束。
本公开实施例提供的PRACH重复传输方法，网络设备不需要对用于重复传输多个PRACH的每个RO的关联SSB进行指示，从而减少了指示开销；并且，尽管一个RO组对应的多个PRACH的发送波束可以不同，但SSB与RO的关联关系是确定的，因此PRACH的发送波束也是确定的，网络设备可以根据每个RO对应的PRACH的发送波束确定自己在每个RO上的最优接收波束，从而获得波束分集增益，在终端快速移动时具有更好的鲁棒性。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
具体地，网络设备可以根据协议预定义的规则，在确定重复传输的多个PRACH的发送波束时，不仅根据该多个PRACH所对应的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，同时还综合网络设备实际发送的SSB的个数以及PRACH的重复传输次数等信息，来确定该多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
方式1：根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，网络设备实际发送的SSB的个数等于PRACH的重复传输次数；或者，
方式2：根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M，且M/N为正整数；或者，
方式3：根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M；或者，
方式4：根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M，且N/M为正整数；或者，
方式5：根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M。
具体地，对于方式1，假设网络设备实际发送的SSB为SSB0、SSB1、SSB2和SSB3，则网络设备实际发送的SSB的个数为4，网络设备实际发送 的SSB所对应的SSB索引循环序列为0-1-2-3-0-1-2-3-0-1……；假设PRACH的重复传输次数为4，即RO组中包括4个RO，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，SSB与RO一一对应，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定该RO组中每个RO关联的SSB，即首个RO关联的SSB为SSB1，第2个RO关联的SSB为SSB2，第3个RO关联的SSB为SSB3，第4个RO关联的SSB为SSB0。
对于方式2，假设网络设备实际发送的SSB为SSB0、SSB1和SSB2，则网络设备实际发送的SSB的个数为3，网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-0-1-2-0-1……；假设PRACH的重复传输次数为6，即RO组中包括6个RO，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，每个SSB对应2个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定该RO组中每个RO关联的SSB，即首个RO和第2个RO关联的SSB均为SSB1，第3个RO和第4个RO关联的SSB均为SSB2，第5个RO和第6个RO关联的SSB均为SSB0。
对于方式3，其中，表示对M/N的值向下取整，表示对M/N的值向上取整，假设网络设备实际发送的SSB为SSB0、SSB1、SSB2和SSB3，则网络设备实际发送的SSB的个数为4，网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-3-0-1-2-3-0-1……；假设PRACH的重复传输次数为6，即RO组中包括6个RO，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，前2个SSB(即SSB1和SSB2)中每个SSB均对应2个RO，后2个SSB(即SSB3和SSB0)中每个SSB均对应1个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定该RO组中每个RO关联的SSB，即首个RO和第2个RO关联的SSB均为SSB1，第3个RO和第4个RO关联的SSB均为SSB2，第5个RO关联的SSB为SSB3，第6个RO关联的SSB为SSB0。
对于方式4，假设网络设备实际发送的SSB为SSB0、SSB1、SSB2和 SSB3，则网络设备实际发送的SSB的个数为4，网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-3-0-1-2-3-0-1……；假设PRACH的重复传输次数为2，即RO组中包括2个RO，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，每个RO对应2个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定该RO组中每个RO关联的SSB，即首个RO关联的SSB为SSB1和SSB2，第2个RO关联的SSB为SSB3和SSB0。
对于方式5，其中，表示对N/M的值向下取整，表示对N/M的值向上取整，假设网络设备实际发送的SSB为SSB0、SSB1和SSB2，则网络设备实际发送的SSB的个数为3，网络设备实际发送的SSB所对应的SSB索引循环序列为0-1-2-0-1-2-0-1……；假设PRACH的重复传输次数为2，即RO组中包括2个RO，RO组中首个RO关联的SSB为SSB1，则可以从索引循环序列中索引为1的位置开始，前1个RO(即首个RO)对应2个SSB，后1个RO(即第2个RO)对应1个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定该RO组中每个RO关联的SSB，即首个RO关联的SSB为SSB1和SSB2，第2个RO关联的SSB为SSB0。
在确定该RO组中每个RO关联的SSB之后，便可以根据终端接收各SSB的接收波束，确定该RO组所对应的多个PRACH的发送波束。
需要说明的是，对于上述方式4和方式5，若某个RO关联的SSB为多个，则在该RO中发送PRACH时可以选择该RO关联的多个SSB中的一个来确定PRACH的发送波束，例如，可以根据SSB索引选择该多个SSB中索引最小或最大的SSB，或者，根据SSB的RSRP进行选择，或者进行等概率随机选择，等等，在此不做限定。
本公开实施例提供的PRACH重复传输方法，网络设备不需要对用于重复传输多个PRACH的每个RO的关联SSB进行指示，从而减少了指示开销；并且，尽管一个RO组对应的多个PRACH的发送波束可以不同，但SSB与RO的关联关系是确定的，因此PRACH的发送波束也是确定的，网络设备可以根据每个RO对应的PRACH的发送波束确定自己在每个RO上的最优接 收波束，从而获得波束分集增益，在终端快速移动时具有更好的鲁棒性。
可选地，根据预定义的规则和向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
向终端发送第一指示信息，第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
根据第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
具体地，网络设备可以向终端发送第一指示信息，指示终端在确定重复传输的多个PRACH的发送波束时使用哪种协议预定义的规则，从而终端接收到该第一指示信息后，便可以根据第一指示信息中的指示，结合协议预定义的规则，确定重复传输的多个PRACH的发送波束。相应地，网络设备可以根据向终端发送的第一指示信息，并结合协议预定义的规则，确定终端重复发送多个PRACH所使用的发送波束。
可选地，第一指示信息可以是网络设备在系统消息(如SIB1)中承载和广播的。
本公开实施例提供的PRACH重复传输方法，网络设备可以向终端发送第一指示信息，指示终端在确定重复传输的多个PRACH的发送波束时使用哪种预定义的规则，从而在仅使用非常少的指示开销的情况下，提升了重复发送多个PRACH时使用波束的灵活性。
可选地，根据向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
向终端发送第二指示信息，第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO关联的SSB；
根据第二指示信息，确定重复传输的多个PRACH的发送波束。
具体地，网络设备可以向终端发送第二指示信息，该第二指示信息用于指示RO组中的RO所关联的SSB，从而终端接收到该第二指示信息后，便可以根据第二指示信息中的指示，确定重复传输的多个PRACH的发送波束。相应地，网络设备可以根据向终端发送的第二指示信息，确定终端重复发送 多个PRACH所使用的发送波束。
可选地，第二指示信息可以包括指示RO组中的RO所关联的SSB的索引的指示信息。例如，第二指示信息可以通过比特位图(Bitmap)指示多个RO关联的SSB，假设一共有4个SSB，分别为SSB0、SSB1、SSB2和SSB3，假设一个Bitmap＝“001110”的第二指示信息，Bitmap中的每2个比特用于指示一个RO对应4个SSB中的哪一个SSB，则其可以指示一个RO组中的第1个RO关联SSB0(00)，第2个RO关联SSB3(11)，第3个RO关联SSB2(10)。需要说明的是，第二指示信息也可以通过比特位图以外的其他方式指示RO组中的RO所关联的SSB的索引，在此不做限制。
可选地，第二指示信息可以包括指示RO组对应的SSB关联样式的索引的指示信息。SSB关联样式表示的是RO组的各RO所关联的SSB的样式(pattern)，因此SSB关联样式可以指示RO组中的各RO所关联的SSB。其中，SSB关联样式可以是预定义的，也可以是网络设备指示给终端的，例如网络设备通过系统信息广播指示给终端的。第二指示信息则指示这些SSB关联样式的索引。
例如，假设预定义或网络设备指示的是若干长度为4的SSB关联样式，如：
pattern1＝{SSB0-SSB1-SSB2-SSB3}；
pattern2＝{SSB0-SSB3-SSB2-SSB1}；
pattern3＝{SSB0-SSB0-SSB3-SSB3}；
……。
则第二指示信息可以通过指示SSB关联样式的索引的方式指示这些SSB关联样式中的其中一个，假设一个RO组中包括4个RO，当第二指示信息指示pattern2时，该RO组中的4个RO依次分别与SSB0、SSB3、SSB2、SSB1关联。
可选地，第二指示信息可以是网络设备在系统消息(如SIB1)中承载和广播的。
本公开实施例提供的PRACH重复传输方法，网络设备可以向终端发送 第二指示信息，指示用于重复传输多个PRACH的RO组中的RO所关联的SSB，从而终端可以根据第二指示信息指示的SSB，确定重复传输的多个PRACH的发送波束，并根据所确定的各个PRACH的发送波束，向网络设备重复发送多个PRACH，提升了PRACH的覆盖性能；同时，网络设备可以根据每个RO对应的PRACH的发送波束确定自己在每个RO上的最优接收波束，从而获得波束分集增益，在终端快速移动时具有更好的鲁棒性。
本公开各实施例提供的方法是基于同一申请构思的，因此终端侧和网络设备侧方法的实施可以相互参见，重复之处不再赘述。
以下通过具体实施例对上述方法进行举例说明。
本公开的技术方案可应用于5G NR系统，包括网络设备和终端；也可以应用于其他系统，只要终端需要重复发送用于初始接入的导频。
图5为本公开实施例提供的应用场景示意图，如图5所示，该应用场景中，包括终端1和终端2在内的多个终端向网络设备发起随机接入，申请无线网络连接服务；网络设备接收来自至少一个终端的随机接入请求，并为其进行无线服务。网络设备和终端1、终端2之间通过无线通信进行数据交互和传输。其中，涉及的网元主要包括：网络设备，如基站，gNB；终端，如用户设备，UE。
实施例1：本实施例介绍通过预定义的方式确定重复传输的多个PRACH的发送波束，且重复传输的多个PRACH的发送波束相同。
为描述方便，把用于重复发送PRACH的多个RO记为一个RO组。
从SSB与RO关联的角度，一个RO组包括多个RO，这些RO具有不同的时域资源；并且(以预定义的方式)规定，一个RO组对应同一个SSB，或相同的多个SSB；换言之，一个RO组的所有RO对应同一个SSB，或相同的多个SSB(例如，一个RO组的多个RO分别对应多个SSB，这多个SSB均为SSB1)。一个RO组与SSB之间的对应关系可以是网络设备通过SIB1指示的。另一种描述为，复用现有SSB-to-RO关联方法指示SSB与一个RO组中的“首个RO”的关联关系，且(以预定义的方式)规定，一个RO组中(除首个RO外的)其他RO的关联SSB均与首个RO关联的SSB相同。两 种描述方法的实质是等价的。
从发送PRACH的波束的角度，在对应相同SSB的一个RO组中，终端在每个RO中发送PRACH，且各PRACH使用的上行波束相同。
图6为本公开实施例提供的PRACH重复传输方法的实施示意图之一，如图6所示，假设一个RO组包括4个RO，分别为RO3(首个RO)，以及RO3-1、RO3-2、RO3-3，且该RO组对应同一个SSB(即SSB1)。终端选择SSB1，并在该RO组中的每个RO中发送PRACH；所有PRACH的发送波束相同。换言之，时域上，第2～4个RO对应的SSB与第1个RO对应的SSB相同，或者，第2～4个PRACH的发送波束与第1个PRACH的发送波束相同。
图6的示例中，一个RO组中的多个RO的频域位置相同。然而一个RO组中的多个RO的频域位置也可以有所不同，图7为本公开实施例提供的PRACH重复传输方法的实施示意图之二，如图7所示，假设一个RO组包括4个RO，分别为RO3(首个RO)，以及RO3-1、RO3-2、RO3-3，该RO组中的多个RO的频域位置可以不同。需要说明的是，本公开各实施例均不限制一个RO组中的多个RO的频域位置是否相同。
本实施例的有益效果在于，网络设备不需要对每个RO的关联SSB进行指示，从而减少了指示开销；并且，网络设备接收一个RO组所对应的多个PRACH时可以假设PRACH的发送波束都相同，因此可以先在一个RO组的各RO间先进行信号合并再进行相干检测，实现简单，而且可以提高检测性能。
实施例2：本实施例介绍通过预定义的方式确定重复传输的多个PRACH的发送波束，且重复传输的多个PRACH的发送波束可以不同。
类似实施例1，为描述方便，把用于重复发送PRACH的多个RO记为一个RO组。
实施例2-1：本实施例中的第一种方法中，一个RO组中的RO与SSB之间的对应关系，是根据网络设备实际发送的SSB以及首个RO对应的SSB确定的。
具体地，一个RO组中的首个RO与SSB之间的对应关系，可以复用现有SSB-to-RO关联的方法在SIB1中进行指示；而除首个RO外，其他RO与SSB之间的对应关系是根据首个RO对应的SSB以及网络设备实际发送的SSB的SSB索引循环序列确定的。例如，网络设备实际发送的SSB包括SSB0、SSB1、SSB2和SSB3，则其SSB索引循环序列为0-1-2-3-0-1-2-3-0-1……；若一个RO组中首个RO对应的SSB为SSB1，则第2个RO对应的SSB为SSB2，第3个RO对应的SSB为SSB3，第4个RO对应的SSB为SSB0，第5个RO对应的SSB为SSB1，以此类推。
图8为本公开实施例提供的PRACH重复传输方法的实施示意图之三，如图8所示，网络设备实际发送的SSB为SSB0、SSB1、SSB2和SSB3，而一个RO组中包括6个RO。首个RO所对应的SSB索引是网络设备指示的，而其他RO所对应的SSB索引是根据“SSB索引循环序列”，并以“首个RO对应的SSB的索引”为起始索引，进行顺序关联确定的，即RO3对应的SSB为SSB1，RO3-1对应的SSB为SSB2，RO3-2对应的SSB为SSB3，RO3-3对应的SSB为SSB0，RO3-4对应的SSB为SSB1，RO3-5对应的SSB为SSB2。
从发送PRACH的波束的角度，由于每个RO对应的SSB可能是不同的，因此在某RO中发送PRACH的波束也可能是不同的。但对应相同SSB的多个RO中发送的PRACH的波束仍应相同，例如图8中，终端在RO3-1发送的PRACH的波束应与在RO3-5发送的PRACH的波束相同。
实施例2-2：本实施例中的另一种方法中，一个RO组中的RO与SSB之间的对应关系，是根据网络设备实际发送的SSB、首个RO对应的SSB以及PRACH的重复传输次数确定的。
具体地，需要根据网络设备实际发送的SSB的个数N与PRACH的重复传输次数M之间的大小关系，确定每个RO对应的SSB。
(1)若N＝M，则RO与SSB一一对应；图9为本公开实施例提供的PRACH重复传输方法的实施示意图之四，如图9所示，SSB的个数N等于4，PRACH重复传输次数M等于4，首个RO对应的SSB是网络设备指示的， 可以复用现有SSB-to-RO关联的方法在SIB1中进行指示；而其他RO与SSB的对应关系，是根据SSB索引循环序列，并以“首个RO对应的SSB的索引”为起始索引，进行顺序关联确定的(参见实施例2-1)，即RO3对应的SSB为SSB1，RO3-1对应的SSB为SSB2，RO3-2对应的SSB为SSB3，RO3-3对应的SSB为SSB0。
(2)若N<M，则SSB的个数小于RO个数/PRACH重复传输次数；这种情况下，每个SSB对应多个RO；首个RO对应的SSB是网络设备指示的，可以复用现有SSB-to-RO关联的方法在SIB1中进行指示；而其他RO与SSB的对应关系，是根据SSB索引循环序列，并以“首个RO对应的SSB的索引”为起始索引，进行顺序关联确定的，其中：
a.若规定M和N之间必须为整数倍的关系，则每个SSB对应个RO，不同的SSB对应的RO集合不同；图10为本公开实施例提供的PRACH重复传输方法的实施示意图之五，如图10所示，SSB的个数N等于3，PRACH重复传输次数M等于6，则每个SSB对应2个RO，首个RO对应的SSB是网络设备指示的，可以复用现有SSB-to-RO关联的方法在SIB1中进行指示；而其他RO与SSB的对应关系，是根据SSB索引循环序列，并以“首个RO对应的SSB的索引”为起始索引，进行顺序关联确定的，即RO3对应的SSB为SSB1，RO3-1对应的SSB为SSB1，RO3-2和RO3-3对应的SSB均为SSB2，RO3-4和RO3-5对应的SSB均为SSB0；
b.若允许M和N之间不必为整数倍关系，则可以前个SSB每个对应个RO，后个SSB每个对应个RO，不同的SSB对应的RO集合不同；图11为本公开实施例提供的PRACH重复传输方法的实施示意图之六，如图11所示，SSB的个数N等于4，PRACH重复传输次数M等于6，则可以前2个SSB每个对应2个RO，后2个SSB每个对应1个RO，首个RO对应的SSB是网络设备指示的，可以复用现有SSB-to-RO关联的方法在SIB1中进行指示；而其他RO与SSB的对应关系，是根据SSB索引循环序列，并以“首个RO对应的SSB的索引”为起始索引，进行顺序关联确定的，即RO3对应的SSB为SSB1，RO3-1对应的SSB为SSB1， RO3-2和RO3-3对应的SSB均为SSB2，RO3-4对应的SSB为SSB3，RO3-5对应的SSB为SSB0。
(3)若N>M，则SSB的个数大于RO个数/PRACH重复传输次数；这种情况下，每个RO对应多个SSB；首个RO对应的SSB是网络设备指示的，可以复用现有SSB-to-RO关联的方法在SIB1中进行指示；其他SSB与RO的对应关系，是根据SSB索引循环序列，并以“首个RO对应的SSB的索引”为起始索引，进行顺序关联确定的，其中：
a.若规定M和N之间必须为整数倍的关系，则每个RO对应个SSB，不同RO对应的SSB集合不同；图12为本公开实施例提供的PRACH重复传输方法的实施示意图之七，如图12所示，SSB的个数N等于4，PRACH重复传输次数M等于2，则每个RO对应2个SSB，首个RO对应的SSB是网络设备指示的，可以复用现有SSB-to-RO关联的方法在SIB1中进行指示；而其他RO与SSB的对应关系，是根据SSB索引循环序列，并以“首个RO对应的SSB的索引”为起始索引，进行顺序关联确定的，即RO3对应的SSB为SSB1和SSB2，RO3-1对应的SSB为SSB3和SSB0；
b.若允许M和N之间不必为整数倍关系，则可以前个RO每个对应个SSB，后个RO每个对应个SSB，不同的RO对应的SSB集合不同；图13为本公开实施例提供的PRACH重复传输方法的实施示意图之八，如图13所示，SSB的个数N等于3，PRACH重复传输次数M等于2，则可以前1个RO对应2个SSB，后1个RO对应1个SSB，首个RO对应的SSB是网络设备指示的，可以复用现有SSB-to-RO关联的方法在SIB1中进行指示；而其他RO与SSB的对应关系，是根据SSB索引循环序列，并以“首个RO对应的SSB的索引”为起始索引，进行顺序关联确定的，即RO3对应的SSB为SSB1和SSB2，RO3-1对应的SSB为SSB0。
需要说明的是，实施例2-2中各种确定每个RO对应的SSB的方法均可适用于N和M相等的情形。
从发送PRACH的上行波束的角度，由于每个RO对应的SSB可能是不同的，因此在某RO中发送PRACH的波束也可能是不同的。若一个RO对应 多个SSB，终端在该RO中发送PRACH时可以选择对应的多个SSB中的一个来确定上行波束，例如，可以根据SSB索引选择该多个SSB中索引最小或最大的SSB，或者，根据SSB的RSRP进行选择，等等。
本实施例的有益效果在于，网络设备不需要对每个RO的关联SSB进行指示，从而减少了指示开销；并且，尽管一个RO组对应的多个PRACH的发送波束可以不同，但SSB与RO的关联关系是确定的，因此PRACH的发送波束也是确定的，本实施例中的方法可以使得网络设备根据每个RO对应的PRACH的发送波束确定自己在每个RO上的最优接收波束，从而获得波束分集增益，在终端快速移动时具有更好的鲁棒性。
实施例3：本实施例介绍通过(半静态)信令指示的方式确定重复传输的多个PRACH的发送波束，且指示信息指示的是使用实施例1和实施例2中涉及的方法中的一个。
具体地，网络设备可以在系统信息(如SIB1)中承载一个指示信息，记为第一指示信息，该第一指示信息用于指示确定一个RO组内的RO关联的SSB时，使用上述预定义的方法(如实施例1、实施例2-1、实施例2-2)中的哪一个。
具体地，一个RO关联的SSB的确定方法(或等价地，PRACH的发送波束的确定方法)可参考上述实施例1和实施例2中的内容，在此不再赘述。
本实施例中，网络设备可以根据自身的需求，指示终端在重复发送PRACH时使用相同的波束，还是不同的波束。本实施例在仅使用非常少的指示开销的情况下，提升了重复发送多个PRACH时使用波束的灵活性。
实施例4：本实施例介绍通过(半静态)信令指示的方式确定重复传输的多个PRACH的发送波束，且指示信息用于指示重复的多个RO/PRACH所对应的SSB。
本实施例中，该指示信息可记为第二指示信息。
实施例4-1：本实施例的第一种方法中，第二指示信息用于直接指示每个RO关联的SSB(等价地，第二指示信息指示每个RO中发送的PRACH的上行波束)。
例如，第二指示信息可以通过比特位图(Bitmap)指示多个RO关联的SSB。Bitmap中的每K个比特用于指示一个RO对应的2K个SSB中的哪一个。
一个具体的例子，假设本实施例的方法指示一个RO组中所有RO关联的SSB。假设一共有4个SSB，则K＝2；Bitmap中的每2个比特用于指示一个RO对应4个SSB中的哪一个SSB，例如，2比特信息所能代表的4种状态{00,01,10,11}分别对应SSB0、SSB1、SSB2、SSB3。另假设一个RO组中一共包含3个RO，则一共需要2*3＝6比特用于指示该RO组中的每个RO关联的SSB。例如，一个Bitmap＝“001110”的第二指示信息，指示的是第一个RO关联SSB0(00)，第二个RO关联SSB3(11)，第三个RO关联SSB2(10)。
每个SSB-to-RO周期中可能包括多个RO组。这种情况下，第二指示信息应包括多个Bitmap，每个Bitmap对应一个RO组；或者，第二指示信息为一个总的Bitmap，而该总的Bitmap可以包括多个子Bitmap，一个子Bitmap对应一个RO组(例如第二指示信息为一个总共60比特的Bitmap，每6比特为一个子Bitmap，共指示10个RO组的Bitmap)。
第二指示信息也可以通过其他方式指示多个RO关联的SSB，只要令终端可以确定每个RO上对应的SSB即可。
实施例4-2：本实施例的第二种方法中，第二指示信息用于指示SSB与RO组的各RO之间的关联样式。
关联样式表示的是一个RO组的各RO所关联的SSB的样式(pattern)。一个样式可以指示每个RO所关联的SSB。关联样式可以是预定义的，也可以是网络设备通过系统信息广播指示的。第二指示信息则指示这些多个样式中的其中一个。
例如，一个RO组包括4个RO，则可以预定义或广播通知若干长度为4的样式，如：
pattern1＝{SSB0-SSB1-SSB2-SSB3}；
pattern2＝{SSB0-SSB3-SSB2-SSB1}；
pattern3＝{SSB0-SSB0-SSB3-SSB3}；
……。
当第二指示信息指示pattern2时，一个RO组中的4个RO依次分别与SSB0、SSB3、SSB2、SSB1关联。通过这种方法，可以确定一个RO组中的每个RO关联的SSB。
每个SSB-to-RO周期中可能包括多个RO组。这种情况下，第二指示信息应包括多个样式指示信息，指示多个样式，每个RO组对应一个样式；或者，第二指示信息指示的是一个总的样式指示信息，该总的样式指示信息指示的样式包括若干个子样式，一个子样式对应一个RO组(例如，第二指示信息指示的样式是一个长度为40的样式，每4个长度为一个子样式，共指示10个RO组的样式)。
一种可能的实现方式中，可以预定义或网络设备广播通知多种不同长度的样式，第二指示信息指示这些样式中的其中一个。
一种可能的实现方式中，可以预定义或网络设备广播通知若干长度相同或不同的样式，第二指示信息指示这些样式中的其中一个，在确定一个RO组中的每个RO关联的SSB时，若RO组的长度(RO组中RO的个数)与指示的样式长度不同，则通过对指示的样式进行扩展或截断的方式，确定一个RO组中的每个RO关联的SSB。
例如，预定义或广播通知若干长度为4的样式，如：
pattern1＝{SSB0-SSB1-SSB2-SSB3}；
pattern2＝{SSB0-SSB3-SSB2-SSB1}；
pattern3＝{SSB0-SSB0-SSB3-SSB3}；
……。
第二指示信息指示pattern2，若一个RO组包括3个RO，则该RO组中的3个RO可依次分别与SSB0、SSB3、SSB2关联(截断的方式，只取前3个SSB进行关联)；若一个RO组包括6个RO，则该RO组中的6个RO可依次分别与SSB0、SSB3、SSB2、SSB1、SSB0、SSB3关联(扩展的方式，通过循环扩展得到6个SSB进行关联)。
本实施例4-1和4-2中的方法也可以与现有的SSB-to-RO关联方法结合。 例如，现有的SSB-to-RO关联方法仅用于指示首个RO与SSB的关联关系，而本实施例的方法仅用于指示第二个、第三个……RO与SSB的关联关系。又或者，本实施例的第二指示信息仍用于指示所有RO(包括首个RO)关联的SSB，但第二指示信息指示的首个RO关联的SSB需要与现有的SSB-to-RO关联方法指示的首个RO关联的SSB相同。
本公开各实施例提供的方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
图14为本公开实施例提供的终端的结构示意图，如图14所示，该终端包括存储器1420，收发机1410和处理器1400；其中，处理器1400与存储器1420也可以物理上分开布置。
存储器1420，用于存储计算机程序；收发机1410，用于在处理器1400的控制下收发数据。
具体地，收发机1410用于在处理器1400的控制下接收和发送数据。
其中，在图14中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1400代表的一个或多个处理器和存储器1420代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本公开不再对其进行进一步描述。总线接口提供接口。收发机1410可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备，用户接口1430还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1400负责管理总线架构和通常的处理，存储器1420可以存储处理器1400在执行操作时所使用的数据。
处理器1400可以是中央处理器(Central Processing Unit,CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex  Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
处理器1400通过调用存储器1420存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的任一所述方法，例如：根据预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束；根据发送波束，向网络设备发送多个PRACH。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
其中，重复传输的多个PRACH的发送波束相同。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB 的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，网络设备实际发送的SSB的个数等于PRACH的重复传输次数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M，且M/N为正整数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后个SSB中每个SSB均对应个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M，且N/M为正整数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M。
可选地，根据预定义的规则和网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
接收网络设备发送的第一指示信息，第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
根据第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
可选地，根据网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
接收网络设备发送的第二指示信息，第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO所关联的SSB；
根据第二指示信息，确定重复传输的多个PRACH的发送波束。
可选地，第二指示信息包括指示RO组中的RO所关联的SSB的索引的指示信息；或者，
第二指示信息包括指示RO组对应的SSB关联样式的索引的指示信息，SSB关联样式为预定义的或网络设备指示的。
图15为本公开实施例提供的网络设备的结构示意图，如图15所示，该网络设备包括存储器1520，收发机1510和处理器1500；其中，处理器1500与存储器1520也可以物理上分开布置。
存储器1520，用于存储计算机程序；收发机1510，用于在处理器1500的控制下收发数据。
具体地，收发机1510用于在处理器1500的控制下接收和发送数据。
其中，在图15中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1500代表的一个或多个处理器和存储器1520代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路 等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本公开不再对其进行进一步描述。总线接口提供接口。收发机1510可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。
处理器1500负责管理总线架构和通常的处理，存储器1520可以存储处理器1500在执行操作时所使用的数据。
处理器1500可以是CPU、ASIC、FPGA或CPLD，处理器也可以采用多核架构。
处理器1500通过调用存储器1520存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的任一所述方法，例如：根据预定义的规则和/或向终端发送的指示信息，确定重复传输的多个PRACH的发送波束；根据发送波束，接收终端发送的多个PRACH。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
其中，重复传输的多个PRACH的发送波束相同。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始 索引，每个RO对应一个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，网络设备实际发送的SSB的个数等于PRACH的重复传输次数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M，且M/N为正整数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后个SSB中每个SSB均对应个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M，且N/M为正整数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后个RO中每个RO均对应个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M。
可选地，根据预定义的规则和向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
向终端发送第一指示信息，第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
根据第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
可选地，根据向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
向终端发送第二指示信息，第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO关联的SSB；
根据第二指示信息，确定重复传输的多个PRACH的发送波束。
可选地，第二指示信息包括指示RO组中的RO关联的SSB的索引的指示信息；或者，
第二指示信息包括指示RO组对应的SSB关联样式的索引的指示信息，SSB关联样式为预定义的或网络设备指示给终端的。
在此需要说明的是，本公开实施例提供的上述终端和网络设备，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在 此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图16为本公开实施例提供的PRACH重复传输装置的结构示意图之一，该装置可应用于终端，如图16所示，该装置包括：
第一确定单元1600，用于根据预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束；
发送单元1610，用于根据发送波束，向网络设备发送多个PRACH。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
其中，重复传输的多个PRACH的发送波束相同。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络 设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，网络设备实际发送的SSB的个数等于PRACH的重复传输次数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M，且M/N为正整数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后个SSB中每个SSB均对应个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M，且N/M为正整数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始 索引，前个RO中每个RO均对应个SSB，后个RO中每个RO均对应个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M。
可选地，根据预定义的规则和网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
接收网络设备发送的第一指示信息，第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
根据第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
可选地，根据网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
接收网络设备发送的第二指示信息，第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO所关联的SSB；
根据第二指示信息，确定重复传输的多个PRACH的发送波束。
可选地，第二指示信息包括指示RO组中的RO所关联的SSB的索引的指示信息；或者，
第二指示信息包括指示RO组对应的SSB关联样式的索引的指示信息，SSB关联样式为预定义的或网络设备指示的。
图17为本公开实施例提供的PRACH重复传输装置的结构示意图之二，该装置可应用于网络设备，如图17所示，该装置包括：
第二确定单元1700，用于根据预定义的规则和/或向终端发送的指示信息，确定重复传输的多个PRACH的发送波束；
接收单元1710，用于根据发送波束，接收终端发送的多个PRACH。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号 块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
其中，重复传输的多个PRACH的发送波束相同。
可选地，根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
可选地，根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对RO组中的RO和网络设备实际发送的SSB 进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，网络设备实际发送的SSB的个数等于PRACH的重复传输次数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M，且M/N为正整数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后个SSB中每个SSB均对应个RO，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N小于或等于M；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M，且N/M为正整数；或者，
根据SSB索引循环序列，以RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后个RO中每个RO均对应个SSB，对RO组中的RO和网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，M为PRACH的重复传输次数，N为网络设备实际发送的SSB的个数，N大于或等于M。
可选地，根据预定义的规则和向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
向终端发送第一指示信息，第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
根据第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
可选地，根据向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
向终端发送第二指示信息，第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO关联的SSB；
根据第二指示信息，确定重复传输的多个PRACH的发送波束。
可选地，第二指示信息包括指示RO组中的RO关联的SSB的索引的指示信息；或者，
第二指示信息包括指示RO组对应的SSB关联样式的索引的指示信息，SSB关联样式为预定义的或网络设备指示给终端的。
需要说明的是，本公开实施例中对单元的划分是示意性的，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。另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元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，可以存储在一个处理器可读取存储介质中。基于这样的理解，本公开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全部或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)或处理器(processor)执行本公开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。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
另一方面，本公开实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序用于使计算机执行上述各实施例提供的PRACH重复传输方法。
在此需要说明的是，本公开实施例提供的计算机可读存储介质，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
所述计算机可读存储介质可以是计算机能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
本公开实施例提供的技术方案可以适用于多种系统，尤其是5G系统。例如适用的系统可以是全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)通用分组无线业务(general packet radio service，GPRS)系统、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统、高级长期演进(long term evolution advanced，LTE-A)系统、通用移动系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)系统、5G新空口(New Radio,NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分，例如演进的分组系统(Evloved Packet System,EPS)、5G系统(5GS)等。
本公开实施例涉及的终端，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中，终端的名称可能也不相同，例如在5G系统中，终端可以称为用户设备(User Equipment，UE)。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN) 进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device)，本公开实施例中并不限定。
本公开实施例涉及的网络设备，可以是基站，该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同，基站又可以称为接入点，或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备，或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol，IP)分组进行相互更换，作为无线终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如，本公开实施例涉及的网络设备可以是全球移动通信系统(Global System for Mobile communications，GSM)或码分多址接入(Code Division Multiple Access，CDMA)中的网络设备(Base Transceiver Station，BTS)，也可以是带宽码分多址接入(Wide-band Code Division Multiple Access，WCDMA)中的网络设备(NodeB)，还可以是长期演进(long term evolution，LTE)系统中的演进型网络设备(evolutional Node B，eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB)，也可以是家庭演进基站(Home evolved Node B，HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等，本公开实施例中并不限定。在一些网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点和分布单元(distributed unit，DU)节点，集中单元和分布单元也可 以地理上分开布置。
网络设备与终端设备之间可以各自使用一或多根天线进行多输入多输出(Multi Input Multi Output,MIMO)传输，MIMO传输可以是单用户MIMO(Single User MIMO,SU-MIMO)或多用户MIMO(Multiple User MIMO,MU-MIMO)。根据根天线组合的形态和数量，MIMO传输可以是2D-MIMO、3D-MIMO、FD-MIMO或massive-MIMO，也可以是分集传输或预编码传输或波束赋形传输等。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中，使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (55)

  1. 一种物理随机接入信道PRACH重复传输方法，其特征在于，应用于终端，包括：
    根据预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束；
    根据所述发送波束，向网络设备发送所述多个PRACH。
  2. 根据权利要求1所述的PRACH重复传输方法，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
    其中，所述重复传输的多个PRACH的发送波束相同。
  3. 根据权利要求1所述的PRACH重复传输方法，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
  4. 根据权利要求3所述的PRACH重复传输方法，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
  5. 根据权利要求3所述的PRACH重复传输方法，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设 备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
  6. 根据权利要求5所述的PRACH重复传输方法，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述网络设备实际发送的SSB的个数等于所述PRACH的重复传输次数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M，且M/N为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M，且N/M为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M。
  7. 根据权利要求1所述的PRACH重复传输方法，其特征在于，所述根据预定义的规则和网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    接收网络设备发送的第一指示信息，所述第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
    根据所述第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
  8. 根据权利要求1所述的PRACH重复传输方法，其特征在于，所述根据网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    接收网络设备发送的第二指示信息，所述第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO所关联的SSB；
    根据所述第二指示信息，确定重复传输的多个PRACH的发送波束。
  9. 根据权利要求8所述的PRACH重复传输方法，其特征在于，所述第二指示信息包括指示所述RO组中的RO所关联的SSB的索引的指示信息；或者，
    所述第二指示信息包括指示所述RO组对应的SSB关联样式的索引的指示信息，所述SSB关联样式为预定义的或网络设备指示的。
  10. 一种物理随机接入信道PRACH重复传输方法，其特征在于，应用于网络设备，包括：
    根据预定义的规则和/或向终端发送的指示信息，确定重复传输的多个PRACH的发送波束；
    根据所述发送波束，接收终端发送的所述多个PRACH。
  11. 根据权利要求10所述的PRACH重复传输方法，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
    其中，所述重复传输的多个PRACH的发送波束相同。
  12. 根据权利要求10所述的PRACH重复传输方法，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
  13. 根据权利要求12所述的PRACH重复传输方法，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
  14. 根据权利要求12所述的PRACH重复传输方法，其特征在于，所述 根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、所述网络设备实际发送的SSB所对应的SSB索引循环序列、所述网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
  15. 根据权利要求14所述的PRACH重复传输方法，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、所述网络设备实际发送的SSB所对应的SSB索引循环序列、所述网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述网络设备实际发送的SSB的个数等于所述PRACH的重复传输次数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M，且M/N为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网 络设备实际发送的SSB的个数，所述N小于或等于所述M；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M，且N/M为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M。
  16. 根据权利要求10所述的PRACH重复传输方法，其特征在于，所述根据预定义的规则和向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    向终端发送第一指示信息，所述第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
    根据所述第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
  17. 根据权利要求10所述的PRACH重复传输方法，其特征在于，所述根据向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    向终端发送第二指示信息，所述第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO关联的SSB；
    根据所述第二指示信息，确定重复传输的多个PRACH的发送波束。
  18. 根据权利要求17所述的PRACH重复传输方法，其特征在于，所述第二指示信息包括指示所述RO组中的RO关联的SSB的索引的指示信息； 或者，
    所述第二指示信息包括指示所述RO组对应的SSB关联样式的索引的指示信息，所述SSB关联样式为预定义的或所述网络设备指示给终端的。
  19. 一种终端，其特征在于，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    根据预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束；
    根据所述发送波束，向网络设备发送所述多个PRACH。
  20. 根据权利要求19所述的终端，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
    其中，所述重复传输的多个PRACH的发送波束相同。
  21. 根据权利要求19所述的终端，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
  22. 根据权利要求21所述的终端，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波 束。
  23. 根据权利要求21所述的终端，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
  24. 根据权利要求23所述的终端，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述网络设备实际发送的SSB的个数等于所述PRACH的重复传输次数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M，且M/N为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的 发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M，且N/M为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M。
  25. 根据权利要求19所述的终端，其特征在于，所述根据预定义的规则和网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    接收网络设备发送的第一指示信息，所述第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
    根据所述第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
  26. 根据权利要求19所述的终端，其特征在于，所述根据网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    接收网络设备发送的第二指示信息，所述第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO所关联的SSB；
    根据所述第二指示信息，确定重复传输的多个PRACH的发送波束。
  27. 根据权利要求26所述的终端，其特征在于，所述第二指示信息包括指示所述RO组中的RO所关联的SSB的索引的指示信息；或者，
    所述第二指示信息包括指示所述RO组对应的SSB关联样式的索引的指示信息，所述SSB关联样式为预定义的或网络设备指示的。
  28. 一种网络设备，其特征在于，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    根据预定义的规则和/或向终端发送的指示信息，确定重复传输的多个PRACH的发送波束；
    根据所述发送波束，接收终端发送的所述多个PRACH。
  29. 根据权利要求28所述的网络设备，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
    其中，所述重复传输的多个PRACH的发送波束相同。
  30. 根据权利要求28所述的网络设备，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
  31. 根据权利要求30所述的网络设备，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
  32. 根据权利要求30所述的网络设备，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、所述网络设备实际发送的SSB所对应的SSB索引循环序列、所述网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
  33. 根据权利要求32所述的网络设备，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、所述网络设备实际发送的SSB所对应的SSB索引循环序列、所述网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述网络设备实际发送的SSB的个数等于所述PRACH的重复传输次数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M，且M/N为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的 发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M，且N/M为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M。
  34. 根据权利要求28所述的网络设备，其特征在于，所述根据预定义的规则和向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    向终端发送第一指示信息，所述第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
    根据所述第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
  35. 根据权利要求28所述的网络设备，其特征在于，所述根据向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    向终端发送第二指示信息，所述第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO关联的SSB；
    根据所述第二指示信息，确定重复传输的多个PRACH的发送波束。
  36. 根据权利要求35所述的网络设备，其特征在于，所述第二指示信息包括指示所述RO组中的RO关联的SSB的索引的指示信息；或者，
    所述第二指示信息包括指示所述RO组对应的SSB关联样式的索引的指示信息，所述SSB关联样式为预定义的或所述网络设备指示给终端的。
  37. 一种物理随机接入信道PRACH重复传输装置，其特征在于，应用于终端，包括：
    第一确定单元，用于根据预定义的规则和/或网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束；
    发送单元，用于根据所述发送波束，向网络设备发送所述多个PRACH。
  38. 根据权利要求37所述的PRACH重复传输装置，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
    其中，所述重复传输的多个PRACH的发送波束相同。
  39. 根据权利要求37所述的PRACH重复传输装置，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
  40. 根据权利要求39所述的PRACH重复传输装置，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
  41. 根据权利要求39所述的PRACH重复传输装置，其特征在于，所述 根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
  42. 根据权利要求41所述的PRACH重复传输装置，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、网络设备实际发送的SSB所对应的SSB索引循环序列、网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述网络设备实际发送的SSB的个数等于所述PRACH的重复传输次数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M，且M/N为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网 络设备实际发送的SSB的个数，所述N小于或等于所述M；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M，且N/M为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M。
  43. 根据权利要求37所述的PRACH重复传输装置，其特征在于，所述根据预定义的规则和网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    接收网络设备发送的第一指示信息，所述第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
    根据所述第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
  44. 根据权利要求37所述的PRACH重复传输装置，其特征在于，所述根据网络设备发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    接收网络设备发送的第二指示信息，所述第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO所关联的SSB；
    根据所述第二指示信息，确定重复传输的多个PRACH的发送波束。
  45. 根据权利要求44所述的PRACH重复传输装置，其特征在于，所述第二指示信息包括指示所述RO组中的RO所关联的SSB的索引的指示信息； 或者，
    所述第二指示信息包括指示所述RO组对应的SSB关联样式的索引的指示信息，所述SSB关联样式为预定义的或网络设备指示的。
  46. 一种物理随机接入信道PRACH重复传输装置，其特征在于，应用于网络设备，包括：
    第二确定单元，用于根据预定义的规则和/或向终端发送的指示信息，确定重复传输的多个PRACH的发送波束；
    接收单元，用于根据所述发送波束，接收终端发送的所述多个PRACH。
  47. 根据权利要求46所述的PRACH重复传输装置，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的随机接入信道时机RO组与同步信号块SSB之间的对应关系，确定重复传输的多个PRACH的发送波束；或者，
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，确定重复传输的多个PRACH的发送波束；
    其中，所述重复传输的多个PRACH的发送波束相同。
  48. 根据权利要求46所述的PRACH重复传输装置，其特征在于，所述根据预定义的规则，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束。
  49. 根据权利要求48所述的PRACH重复传输装置，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应一个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束。
  50. 根据权利要求48所述的PRACH重复传输装置，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB，以及所述网络设备实际发送的SSB所对应的SSB索引循环序列，确定重复传输的多个PRACH的发送波束，包括：
    根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、所述网络设备实际发送的SSB所对应的SSB索引循环序列、所述网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束。
  51. 根据权利要求50所述的PRACH重复传输装置，其特征在于，所述根据用于重复传输多个PRACH的RO组中首个RO关联的SSB、所述网络设备实际发送的SSB所对应的SSB索引循环序列、所述网络设备实际发送的SSB的个数以及PRACH的重复传输次数，确定重复传输的多个PRACH的发送波束，包括：
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，SSB与RO一一对应，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述网络设备实际发送的SSB的个数等于所述PRACH的重复传输次数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个SSB对应M/N个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M，且M/N为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个SSB中每个SSB均对应个RO，后 个SSB中每个SSB均对应个RO，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的 发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N小于或等于所述M；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，每个RO对应N/M个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M，且N/M为正整数；或者，
    根据所述SSB索引循环序列，以所述RO组中首个RO关联的SSB的索引为起始索引，前个RO中每个RO均对应个SSB，后 个RO中每个RO均对应个SSB，对所述RO组中的RO和所述网络设备实际发送的SSB进行顺序关联，确定重复传输的多个PRACH的发送波束，其中，所述M为所述PRACH的重复传输次数，所述N为所述网络设备实际发送的SSB的个数，所述N大于或等于所述M。
  52. 根据权利要求46所述的PRACH重复传输装置，其特征在于，所述根据预定义的规则和向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    向终端发送第一指示信息，所述第一指示信息用于指示确定重复传输的多个PRACH的发送波束所使用的预定义的规则；
    根据所述第一指示信息指示的预定义的规则，确定重复传输的多个PRACH的发送波束。
  53. 根据权利要求46所述的PRACH重复传输装置，其特征在于，所述根据向终端发送的指示信息，确定重复传输的多个PRACH的发送波束，包括：
    向终端发送第二指示信息，所述第二指示信息用于指示用于重复传输多个PRACH的RO组中的RO关联的SSB；
    根据所述第二指示信息，确定重复传输的多个PRACH的发送波束。
  54. 根据权利要求53所述的PRACH重复传输装置，其特征在于，所述 第二指示信息包括指示所述RO组中的RO关联的SSB的索引的指示信息；或者，
    所述第二指示信息包括指示所述RO组对应的SSB关联样式的索引的指示信息，所述SSB关联样式为预定义的或所述网络设备指示给终端的。
  55. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，所述计算机程序用于使计算机执行权利要求1至9任一项所述的方法，或执行权利要求10至18任一项所述的方法。
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