CN-122002541-A - Wireless communication method, device and equipment

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 the first uplink information based on the target uplink carrier, and/or the terminal determines a target downlink carrier according to the first information and receives the first downlink information based on the target downlink carrier.

Inventors

• LIN ZHIPENG

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 information based on the target uplink carrier, wherein the first uplink information is uplink information of data sent by the terminal in an idle state or a deactivated state, or the first uplink information is uplink information in layer one/layer two triggered mobility LTM switching, or the first uplink information is uplink information in switching without random access, and/or, The terminal determines a target downlink carrier according to the first information, and the terminal receives first downlink information based on the target downlink carrier, wherein the first downlink information is downlink information of data received by the terminal in an idle state or a deactivated state, or the first downlink information is downlink information in LTM switching, or the first downlink information is downlink information in switching without random access.
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. A method according to claim 1 or 2, characterized in that, 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.
4. 4. The method of claim 3, wherein the step of, 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.
5. 5. The method according to any one of claim 1 to 4, 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; 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; 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; the SSB index corresponding to the downlink carrier that does not transmit SSB multiplexes the SSB index corresponding to the downlink carrier that transmits SSB.
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: 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; configuring authorized CG resources of one or more uplink carriers by associating SSB indexes corresponding to one downlink carrier; CG resources of one uplink carrier are 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: 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; SSB index corresponding to one downlink carrier group is associated with CG resources of one or more uplink carrier groups; CG resources of one uplink carrier group are 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: 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; A random access preamble corresponding to one uplink carrier is associated with SSB indexes corresponding to one or more downlink carriers; SSB index corresponding to one downlink carrier is associated with CG resources of one or more uplink carriers; CG resources of one uplink carrier are associated with SSB indexes corresponding to one or more downlink carriers.
7. 7. The method of claim 6, wherein the step of providing the first layer comprises, The method comprises the steps of enabling a plurality of uplink carriers to be uplink carriers for uplink retransmission when SSB indexes corresponding to one downlink carrier are associated with RO corresponding to the plurality of uplink carriers, and/or enabling the plurality of uplink carriers to be uplink carriers for uplink retransmission when SSB indexes corresponding to one downlink carrier are associated with random access preambles corresponding to the plurality of uplink carriers, and/or enabling the plurality of uplink carriers to be uplink carriers for uplink retransmission when SSB indexes corresponding to one downlink carrier are associated with CG resources of the plurality of uplink carriers; Or alternatively And/or, when the SSB index corresponding to one downlink carrier group is associated with random access preambles corresponding to a plurality of uplink carrier groups, the plurality of uplink carrier groups are uplink carrier groups for uplink repeated transmission, and/or, when the SSB index corresponding to one downlink carrier group is associated with CG resources of the 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 any one of claims 5 to 7, further comprising: 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 information corresponds to the same uplink carrier or the same uplink carrier group, or the repeated transmission of the first uplink 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 information corresponds to the same downlink carrier or the same downlink carrier group, or the repeated transmission of the first downlink information corresponds to different downlink carriers or different downlink carrier groups.
10. 10. The method of claim 9, wherein the step of determining the position of the substrate comprises, The uplink transmission after the first uplink information corresponds to the same uplink carrier or the same uplink carrier group as the transmission of the first uplink information, or the uplink transmission after the first uplink information corresponds to a different uplink carrier or a different uplink carrier group as the transmission of the first uplink information; and/or the number of the groups of groups, And the downlink transmission after the first downlink information corresponds to the same downlink carrier or the same downlink carrier group as the transmission of the first downlink information, or the downlink transmission after the first downlink information corresponds to different downlink carriers or different downlink carrier groups as the transmission of the first downlink information.
11. 11. The method according to any one of claims 1 to 10, wherein, The first uplink information is uplink information of data transmission in an idle state or a deactivated state, the uplink information of the data transmission in the idle state or the deactivated state is information 3Msg3 in four-step random access, and the Msg3 in the four-step random access comprises the first uplink data; 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; the data amount of the first uplink data; Uplink carrier corresponding to resource of random access preamble in four steps of random access; uplink carrier corresponding to the identification of random access preamble in the four-step random access; 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.
12. 12. The method according to any one of claims 1 to 10, wherein, The first uplink information is uplink information of data transmission in an idle state or a deactivated state, the uplink information of the data transmission in the idle state or the deactivated state is a message A MsgA in two-step random access, and MsgA in the two-step random access comprises second uplink data; 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; the SSB is used for synchronizing uplink carriers associated with the corresponding downlink carriers; MsgA available uplink carriers in the two-step random access; DCI in PDCCH used for triggering non-competitive two-step random access; the data amount of the second uplink data; reference carrier downlink signal quality; And the uplink carrier which is available in MsgA of the two-step random access and is associated with the downlink carrier with the highest downlink signal quality.
13. 13. The method according to any one of claims 1 to 10, wherein, The first uplink information is uplink information of transmission data in an idle state or a deactivated state, and the uplink information of the transmission data in the idle state or the deactivated state is uplink transmission on a configured authorized CG resource; 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; the SSB is used for synchronizing uplink carriers associated with the corresponding downlink carriers; The amount of data to be transmitted; The uplink carrier associated with the downlink carrier with the highest downlink signal quality.
14. 14. The method according to any one of claims 1 to 10, wherein, The first downlink information is downlink information of data transmission in an idle state or a deactivated state, the downlink information of the data transmission in the idle state or the deactivated state is message 4Msg4 in four-step random access, and the Msg4 in the four-step random access comprises the first downlink data; 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; downlink carrier indicated in RAR in four-step random access; 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; the data amount of the first downlink data; A reference carrier; default downlink carrier; the downlink carrier with the highest signal quality; The downlink carrier with the highest average signal quality.
15. 15. The method according to any one of claims 1 to 10, wherein, The first downlink information is downlink information of data transmission in an idle state or a deactivated state, the downlink information of the data transmission in the idle state or the deactivated state is a message B MsgB in two-step random access, and MsgB in the two-step random access comprises second downlink data; 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 SSB is used for synchronizing the corresponding downlink carrier wave; the data amount of the second downlink data; MsgB available downlink carriers in the two-step random access; MsgA in the two-step random access transmits a downlink carrier associated with a corresponding uplink carrier; downlink carrier indicated in MsgA in two-step random access; A reference carrier; default downlink carrier; the downlink carrier with the highest signal quality; The downlink carrier with the highest average signal quality.
16. 16. The method according to any one of claims 1 to 10, wherein, The first uplink information is uplink information in LTM switching, wherein the uplink information in LTM switching comprises at least one of information for uplink synchronization, configuration of uplink transmission on authorized CG resources, a physical random access channel PRACH in four-step random access, msg3 in four-step random access, uplink information after Msg4 in four-step random access and MsgA in two-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; indication in LTM switch command; Uplink carriers for which uplink information in the LTM switching is available; The uplink carrier associated with the downlink carrier with the highest downlink signal quality.
17. 17. The method according to any one of claims 1 to 10, wherein, The first downlink information is downlink information in LTM switching, and the downlink information in LTM switching comprises at least one of an LTM switching command, a random access response RAR in four-step random access, msg4 in four-step random access and MsgB in two-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; default downlink carrier; The downlink carrier corresponding to SSB used for synchronization; indication in LTM switch command; the LTM switching command transmits the corresponding downlink carrier wave; uplink carrier waves with available downlink information in the LTM switching; a downlink carrier with highest downlink signal quality; The downlink carrier with the highest average signal quality.
18. 18. The method according to any one of claims 1 to 10, wherein, The first uplink information is uplink information in switching without random access, and the uplink information in switching without random access is configured with an authorized physical uplink shared channel CG (physical uplink control channel) PUSCH; 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; The CG PUSCH can be used for uplink carrier waves; uplink carriers associated with downlink carriers corresponding to SSB for synchronization; The uplink carrier associated with the downlink carrier with the highest downlink signal quality.
19. 19. The method of claim 18, wherein the step of providing the first information comprises, And the SSB index associated with the uplink carrier corresponding to the initial transmission of the CG PUSCH is the same as the SSB index associated with the uplink carrier corresponding to the retransmission of the CG PUSCH, or the SSB index associated with the uplink carrier corresponding to the initial transmission of the CG PUSCH is associated with the SSB index associated with the uplink carrier corresponding to the retransmission of the CG PUSCH.
20. 20. The method according to claim 18 or 19, wherein, If the SSB index associated with the uplink carrier corresponding to the initial transmission of the CG PUSCH is the same as the SSB index associated with the uplink carrier corresponding to the retransmission of the CG PUSCH, retransmission resources used for transmitting the CG PUSCH on the uplink carrier corresponding to the retransmission of the CG PUSCH are effective, and/or if the SSB index associated with the uplink carrier corresponding to the initial transmission of the CG PUSCH is associated with the SSB index associated with the uplink carrier corresponding to the retransmission of the CG PUSCH, retransmission resources used for transmitting the CG PUSCH on the uplink carrier corresponding to the retransmission of the CG PUSCH are effective; and/or the number of the groups of groups, The uplink carrier corresponding to the initial transmission of the CG PUSCH is the same as the uplink carrier corresponding to the retransmission of the CG PUSCH, or the uplink carrier corresponding to the initial transmission of the CG PUSCH is different from the uplink carrier corresponding to the retransmission of the CG PUSCH.

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, for small data Transmission (SMALL DATA Transmission, SDT) based on Random access (Random ACCESS CHANNEL, RACH) or mobility (L1/L2-TRIGGERED MOBILITY, LTM) based on layer one/layer two triggering of RACH, after a terminal selects a downlink carrier of Random access, a Random access process is completed on the selected downlink carrier and a downlink carrier associated with the downlink carrier, which is relatively inflexible, and is not suitable for a multi-carrier or carrier group scenario, in which carriers in the Random access process are not adjusted due to load, interference, and the like. For SDT or random access (RACH-less) handover based on Configuration Grant (CG), when the uplink carrier associated with the downlink carrier has CG configuration and certain conditions are met, the terminal initiates uplink information transmission based on CG, the fixed association relationship is not flexible enough, the adjustment of the transmission carrier due to the change of data quantity and channel condition is not supported, and the method is also not suitable for multi-carrier or carrier group scenes. For a multi-carrier or carrier group scenario, how to determine uplink carriers and/or downlink carriers in SDT, RACH-less handover, LTM handover, etc. 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 determining uplink carriers and/or downlink carriers in the processes of SDT, RACH-less switching, LTM switching and the like under the scene of multiple carriers or carrier groups. 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 information based on the target uplink carrier, wherein the first uplink information is uplink information of data sent by the terminal in an idle state or a deactivated state, or the first uplink information is uplink information in LTM switching, or the first uplink information is uplink information in switching without random access, and/or, The terminal determines a target downlink carrier according to the first information, and receives first downlink information based on the target downlink carrier, wherein the first downlink information is downlink information of data receiving data in an idle state or a deactivated state, or the first uplink information is downlink information in LTM switching, or the first downlink information is downlink information in switching without random access. In a second aspect, there is provided another wireless communication method comprising: 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 equipment receives first uplink information, wherein the first uplink information is sent based on a target uplink carrier, the target uplink carrier is determined based on the first information, the first uplink information is uplink information of data sent by a terminal in an idle state or a deactivated state, or the first uplink information is uplink information in LTM switching, or the first uplink information is uplink information in switching without random access, and/or, The network side equipment sends first downlink information to the terminal, wherein the first downlink information is sent based on a target downlink carrier, the target downlink carrier is determined based on the first information, and the first downlink information is downlink information of data received by the terminal in an idle state or a deactivated state, or the first uplink information is downlink information in LTM switching, or the first downlink information is downlink information in switching without random access. In a third aspect, a wireless communication apparatus is provided, comprising a processing module, a transmitting module, and a receiving module; The processing module or the receiving 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 configured to determine a target