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CN-122002560-A - Wireless communication method, device and equipment

CN122002560ACN 122002560 ACN122002560 ACN 122002560ACN-122002560-A

Abstract

The application discloses a wireless communication method, a device and equipment, which belong to the field of communication, wherein the wireless communication method comprises the steps that a terminal obtains first information, wherein the first information comprises at least one uplink carrier group, at least one downlink carrier group, at least two uplink carriers and at least two downlink carriers, the terminal determines a target uplink carrier according to the first information and sends first uplink random access information based on the target uplink carrier, and/or the terminal determines a target downlink carrier according to the first information and receives first downlink random access information based on the target downlink carrier.

Inventors

  • LIN ZHIPENG
  • JIANG DAJIE
  • PAN XUEMING

Assignees

  • 维沃移动通信有限公司

Dates

Publication Date
20260508
Application Date
20241104

Claims (20)

  1. 1.A method of wireless communication, comprising: the terminal acquires first information, wherein the first information comprises at least one of at least one uplink carrier group, at least one downlink carrier group, at least two uplink carriers and at least two downlink carriers; the terminal determines a target uplink carrier according to the first information, and the terminal sends first uplink random access information based on the target uplink carrier, and/or, And the terminal determines a target downlink carrier according to the first information, and receives first downlink random access information based on the target downlink carrier.
  2. 2. The method of claim 1, wherein the step of determining the position of the substrate comprises, The terminal determines a target uplink carrier according to the first information, including: The terminal determines a target uplink carrier group from the at least one uplink carrier group, and the terminal determines the target uplink carrier from the target uplink carrier group, or The terminal determines the target uplink carrier from the at least two uplink carriers; and/or the number of the groups of groups, The terminal determines a target downlink carrier according to the first information, including: The terminal determines a target downlink carrier group from the at least one downlink carrier group, and the terminal determines the target downlink carrier from the target downlink carrier group, or And the terminal determines the target downlink carrier from the at least two downlink carriers.
  3. 3. The method of claim 2, wherein the step of determining the position of the substrate comprises, The set of target uplink carriers is determined based on at least one of: The method comprises the steps that uplink carrier groups with available first uplink random access information, identification information of a terminal, identification information of the terminal group to which the terminal belongs, paging information sent by network side equipment, uplink carrier groups associated with downlink carrier groups selected by the terminal, average signal quality of all downlink carriers in the downlink carrier groups selected by the terminal, highest signal quality of all downlink carriers in the downlink carrier groups selected by the terminal, uplink data quantity to be transmitted of the terminal, uplink cache data quantity of the terminal, uplink service quality QoS of the terminal and uplink transmission delay of the terminal are used; and/or the number of the groups of groups, The set of target downlink carriers is determined based on at least one of: The downlink carrier wave group with the available first downlink random access information, the identification information of the terminal group to which the terminal belongs, the paging message sent by the network side equipment, and the downlink carrier group in which the downlink carrier with the highest measured signal quality is positioned in the at least one downlink carrier group, and the downlink carrier group with the highest average signal quality of all downlink carriers in the at least one downlink carrier group.
  4. 4. A method according to any one of claim 1 to 3, wherein, One downlink carrier set is associated with one or more uplink carrier sets, and/or, One uplink carrier set is associated with one or more downlink carrier sets.
  5. 5. The method of claim 4, wherein the step of determining the position of the first electrode is performed, The first information comprises an association relation between an uplink carrier group and a downlink carrier group; Or alternatively The association between the uplink carrier set and the downlink carrier set is determined based on at least one of: frequency band, frequency band combination, spectral range, bandwidth portion BWP.
  6. 6. The method according to any one of claim 1 to 5, wherein, The downlink carriers within each of the at least one downlink carrier set satisfy at least one of the following conditions: part or all of the downlink carriers correspond to the same SSB index; The SSB indexes corresponding to part or all of downlink carriers have an association relation; multiplexing SSB indexes corresponding to the downlink carriers of the SSB without transmitting the SSB by the SSB indexes corresponding to the downlink carriers of the SSB; The SSB index corresponding to one downlink carrier is associated with random access opportunity RO corresponding to one or more uplink carriers; RO corresponding to one uplink carrier is associated with SSB indexes corresponding to one or more downlink carriers; the SSB index corresponding to one downlink carrier is associated with random access lead codes corresponding to one or more uplink carriers; A random access preamble corresponding to one uplink carrier is associated with SSB indexes corresponding to one or more downlink carriers; Or alternatively The downlink carrier set of the at least one downlink carrier set satisfies at least one of the following conditions: partial or full downlink carrier groups correspond to the same SSB index; The SSB indexes corresponding to part or all of the downlink carrier groups have an association relation; associating SSB indexes corresponding to one downlink carrier group with RO corresponding to one or more uplink carrier groups; RO corresponding to one uplink carrier group is associated with SSB indexes corresponding to one or more downlink carrier groups; associating SSB indexes corresponding to one downlink carrier group with random access preambles corresponding to one or more uplink carrier groups; A random access preamble corresponding to an uplink carrier group is associated with SSB indexes corresponding to one or more downlink carrier groups; Or alternatively The downlink carrier of the at least two downlink carriers satisfies at least one of the following conditions: Part or all of the downlink carriers correspond to the same SSB index; The SSB indexes corresponding to part or all of downlink carriers have an association relation; multiplexing SSB indexes corresponding to the downlink carriers of the SSB without transmitting the SSB by the SSB indexes corresponding to the downlink carriers of the SSB; associating SSB indexes corresponding to one downlink carrier with RO corresponding to one or more uplink carriers; RO corresponding to one uplink carrier is associated with SSB indexes corresponding to one or more downlink carriers; the SSB index corresponding to one downlink carrier is associated with random access lead codes corresponding to one or more uplink carriers; The random access preamble corresponding to one uplink carrier is associated with one or more SSB indexes corresponding to downlink carriers.
  7. 7. The method of claim 6, wherein the step of providing the first layer comprises, The method comprises the steps of carrying out uplink repeated transmission on a plurality of uplink carriers, wherein the uplink carriers are used for uplink repeated transmission when SSB indexes corresponding to one downlink carrier are associated with RO corresponding to the plurality of uplink carriers, and/or carrying out uplink repeated transmission when SSB indexes corresponding to one downlink carrier are associated with random access preambles corresponding to the plurality of uplink carriers; Or alternatively Under the condition that SSB indexes corresponding to one downlink carrier group are associated with RO corresponding to a plurality of uplink carrier groups, the plurality of uplink carrier groups are uplink carrier groups for uplink repeated transmission; and/or, in the case that the SSB index corresponding to one downlink carrier group is associated with the random access preamble corresponding to a plurality of uplink carrier groups, the plurality of uplink carrier groups are uplink carrier groups for uplink repeated transmission.
  8. 8. The method according to claim 6 or 7, characterized in that the method further comprises: The terminal receives second information; Wherein the second information includes at least one of: conditions satisfied by downlink carriers within each of the at least one downlink carrier group; A condition satisfied by a downlink carrier group in the at least one downlink carrier group; and the condition met by the downlink carrier wave in the at least two downlink carrier waves.
  9. 9. The method according to any one of claims 1 to 8, wherein, The repeated transmission of the first uplink random access information corresponds to the same uplink carrier or the same uplink carrier group, or the repeated transmission of the first uplink random access information corresponds to different uplink carriers or different uplink carrier groups; and/or the number of the groups of groups, The repeated transmission of the first downlink random access information corresponds to the same downlink carrier or the same downlink carrier group, or the repeated transmission of the first downlink random access information corresponds to different downlink carriers or different downlink carrier groups.
  10. 10. The method according to any one of claims 1 to 9, wherein, The first uplink random access information is a physical random access channel PRACH in four-step random access; Wherein the target uplink carrier is determined based on at least one of: The identification of the terminal; paging information sent by network side equipment; Uplink carrier waves available for PRACH in the four-step random access; uplink carriers associated with downlink carriers corresponding to SSB for synchronization; reference carrier downlink signal quality; DCI in PDCCH used for triggering non-competitive four-step random access; and the uplink carrier which is available for PRACH in the four-step random access and is associated with the downlink carrier with the highest downlink signal quality.
  11. 11. The method of claim 10, wherein the step of determining the position of the first electrode is performed, The random access preamble in the PRACH in the four-step random access is used for indicating whether different random access messages after the PRACH in the four-step random access support transmission through different carriers, or the random access preamble in the PRACH in the four-step random access is used for indicating whether different uplink random access messages after the PRACH in the four-step random access support transmission through different uplink carriers, or the random access preamble in the PRACH in the four-step random access is used for indicating whether different downlink random access messages after the PRACH in the four-step random access support transmission through different downlink carriers.
  12. 12. The method according to any one of claims 1 to 9, wherein, The first downlink random access information is random access response RAR in four-step random access; Wherein the target downlink carrier is determined based on at least one of: The identification of the terminal; paging information sent by network side equipment; the RAR in the four-step random access can use a downlink carrier; the PRACH in the four-step random access transmits the downlink carrier associated with the corresponding uplink carrier; The downlink carrier corresponding to SSB used for synchronization; A reference carrier; default downlink carrier; the downlink carrier with the highest signal quality; The downlink carrier with the highest average signal quality.
  13. 13. The method of claim 12, wherein the step of determining the position of the probe is performed, The RAR in the four-step random access includes at least one of: The first indication information is used for indicating an uplink carrier or an uplink carrier group corresponding to the uplink random access information after the RAR in the four-step random access, or is used for indicating an uplink carrier or an uplink carrier group corresponding to the initial transmission and/or retransmission of the uplink random access information after the RAR in the four-step random access; the second indication information is used for indicating a downlink carrier or a downlink carrier group corresponding to the downlink random access information after the RAR in the four-step random access, or the second indication information is used for indicating a downlink carrier or a downlink carrier group corresponding to the initial transmission and/or retransmission of the downlink random access information after the RAR in the four-step random access; And third indication information, configured to indicate PRACH transmission carriers and/or carrier groups corresponding to the RAR in the four-step random access, where the random access radio network temporary identifier RA-RNTI ranges corresponding to different PRACH transmission carriers and/or carrier groups are different, or the random access preamble identifiers corresponding to different PRACH transmission carriers and/or carrier groups are different.
  14. 14. The method according to claim 12 or 13, wherein, The physical downlink control channel PDCCH corresponding to the RAR in the four-step random access and the physical downlink shared channel PDSCH corresponding to the RAR in the four-step random access are transmitted through the target downlink carrier, or And transmitting the PDCCH corresponding to the RAR in the four-step random access through the target downlink carrier, and transmitting the PDSCH corresponding to the RAR in the four-step random access through the downlink carrier indicated by the PDCCH corresponding to the RAR in the four-step random access.
  15. 15. The method according to any one of claims 1 to 9, wherein, The first uplink random access information is a message 3Msg3 in four-step random access; Wherein the target uplink carrier is determined based on at least one of: The identification of the terminal; paging information sent by network side equipment; Default uplink carrier; uplink carriers associated with downlink carriers corresponding to SSB for synchronization; Uplink carrier waves available for Msg3 in the four-step random access; uplink carrier indicated in RAR in four-step random access; And transmitting the corresponding uplink carrier wave by the PRACH in the four-step random access.
  16. 16. The method of claim 15, wherein the step of determining the position of the probe is performed, The Msg3 in the four-step random access includes fourth indication information; the fourth indication information is used for indicating whether the terminal supports downlink random access information cross-carrier scheduling after Msg3 in the four-step random access.
  17. 17. The method according to any one of claims 1 to 9, wherein, The first downlink random access information is a message 4Msg4 in four-step random access; Wherein the target downlink carrier is determined based on at least one of: The identification of the terminal; paging information sent by network side equipment; the Msg4 in the four-step random access can use a downlink carrier; RAR transmission in the four-step random access corresponds to downlink carrier waves; msg3 in the four-step random access transmits a downlink carrier associated with a corresponding uplink carrier; The downlink carrier corresponding to SSB used for synchronization; A reference carrier; default downlink carrier; the downlink carrier with the highest signal quality; The downlink carrier with the highest average signal quality.
  18. 18. The method of claim 17, wherein the step of determining the position of the probe is performed, And the PDCCH corresponding to the Msg4 in the four-step random access corresponds to the same downlink carrier or the same downlink carrier group as the PDSCH corresponding to the Msg4 in the four-step random access, or the PDCCH corresponding to the Msg4 in the four-step random access corresponds to different downlink carriers or different downlink carrier groups as the PDSCH corresponding to the Msg4 in the four-step random access.
  19. 19. The method according to claim 17 or 18, wherein, If the time interval between the PDSCH corresponding to the Msg4 in the four-step random access and the PDCCH corresponding to the Msg4 in the four-step random access is smaller than or not larger than a first threshold, the downlink carrier corresponding to the PDSCH corresponding to the Msg4 in the four-step random access is indicated by the RAR in the four-step random access, or the downlink carrier corresponding to the PDSCH corresponding to the Msg4 in the four-step random access is indicated by a network side device or is agreed by a protocol, or the downlink carrier corresponding to the PDSCH corresponding to the Msg4 in the four-step random access is the same as the downlink carrier corresponding to the PDCCH corresponding to the Msg4 in the four-step random access; and/or the number of the groups of groups, If the time interval between the PDSCH corresponding to the Msg4 in the four-step random access and the PDCCH corresponding to the Msg4 in the four-step random access is greater than or not less than a first threshold, transmitting the PDSCH corresponding to the Msg4 in the four-step random access through a downlink carrier indicated by the PDCCH corresponding to the Msg4 in the four-step random access.
  20. 20. The method according to any one of claims 17 to 19, wherein, The Msg4 in the four-step random access includes fifth indication information; The fifth indication information is used for indicating an uplink carrier or an uplink carrier group corresponding to uplink random access information after the Msg4 in the four-step random access, or the fifth indication information is used for indicating an uplink carrier or an uplink carrier group corresponding to initial transmission and/or retransmission of the uplink random access information after the Msg4 in the four-step random access.

Description

Wireless communication method, device and equipment Technical Field The present application belongs to the field of communication technology, and in particular, relates to a wireless communication method, device and equipment. Background In the related art, a multi-carrier based random access procedure is introduced, and the multi-carrier based random access procedure can be classified into a scenario in which an anchor carrier (anchor carrier), which may also be referred to as an anchor cell, is defined, and a scenario in which an anchor carrier (anchor carrier) is not defined. For the scenario of defining an anchor carrier, in the multi-carrier based random access procedure, a terminal may initiate random access only in an anchor cell, or only in a non-anchor cell. For the scene that the terminal initiates random access in the non-anchor cell, the terminal can receive system messages and related configurations of other non-anchor cells in the anchor cell, select the non-anchor cell according to a certain rule, and send and receive messages in the random access process of the selected non-anchor cell. For the Anchor cell and non-Anchor cell, a supplementary uplink (supplementary uplink, SUL) may also be supported, and the uplink message in the random access procedure may be sent over the normal uplink or the supplementary uplink. In general, after a terminal selects a cell or a carrier, that is, the random access process is completed on the selected uplink carrier and downlink carrier, it is relatively inflexible, such as not supporting adjustment of the carrier in the random access process due to load, interference, and other changes. For a multi-carrier scenario without an anchor carrier, the method is equivalent to that a plurality of independent random accesses based on single carrier exist, the terminal selects carriers based on a certain rule, and the random access process is the same as the random access based on the single carrier. On the one hand, compared with the system information based on the anchor carrier for providing a plurality of carriers, in the mode, the network side equipment can send synchronous signals, system information and the like at each downlink carrier supporting random access, so that the active time of the carrier is increased, and higher network energy consumption is brought, on the other hand, after the terminal selects the downlink carrier of random access, namely the random access process is completed at the selected uplink carrier and downlink carrier, the mode is relatively inflexible, and the carrier in the random access process is not regulated due to the change of load, interference and the like. Therefore, how to improve the random access performance based on multiple carriers is a problem to be solved. Disclosure of Invention The embodiment of the application provides a wireless communication method, a device and equipment, which can solve the problem of insufficient random access performance based on multiple carriers. In a first aspect, a wireless communication method is provided, including: the terminal acquires first information, wherein the first information comprises at least one of at least one uplink carrier group, at least one downlink carrier group, at least two uplink carriers and at least two downlink carriers; the terminal determines a target uplink carrier according to the first information, and the terminal sends first uplink random access information based on the target uplink carrier, and/or, And the terminal determines a target downlink carrier according to the first information, and receives first downlink random access information based on the target downlink carrier. In a second aspect, a wireless communication method is provided, including: The network side equipment sends first information to the terminal, wherein the first information comprises at least one of at least one uplink carrier group, at least one downlink carrier group, at least two uplink carriers and at least two downlink carriers; The network side device receives first uplink random access information from the terminal, wherein the first uplink random access information is transmitted based on a target uplink carrier, the target uplink carrier is determined based on the first information, and/or, The network side equipment sends first downlink random access information to the terminal, wherein the first downlink random access information is sent based on a target downlink carrier, and the target downlink carrier is determined based on the first information. In a third aspect, a wireless communication apparatus is provided, comprising a processing module, a transmitting module, and a receiving module; The processing module is used for acquiring first information, wherein the first information comprises at least one of at least one uplink carrier group, at least one downlink carrier group, at least two uplink carriers and at least two downlink carriers; The processing module is