US-12628179-B2 - Activation indication method and apparatus, and activation determination method and apparatus

Abstract

An activation indication method includes: sending, by a base station, downlink control information (DCI) to a terminal, wherein the DCI is used for indicating the terminal to activate and/or deactivate a secondary cell (SCell).

Inventors

• Yajun Zhu

Assignees

• BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

Dates

Publication Date

20260512

Application Date

20201019

Claims (18)

1. 1 . An activation indication method, comprising: sending, by a base station, downlink control information (DCI) to a terminal, wherein the DCI is used for indicating the terminal to perform at least one of activation and deactivation of a secondary cell (SCell); a format of the DCI used for indicating the terminal to perform at least one of activation and deactivation of the SCell is different from a format of another DCI used for indicating other information, and the DCI comprises a first field used for indicating the terminal to perform at least one of activation and deactivation of the SCell; obtaining SCell grouping information by grouping SCells available to the terminal; and sending the SCell grouping information, available to the terminal, to the terminal, wherein the SCell grouping information comprises SCells in each SCell group; wherein the first field comprises a first target field, a number of bits of the first target field is equal to a number of available SCell groups, the available SCell groups comprise a first target group and a second target group, and the first target field is used for indicating the terminal to perform at least one of: activating an SCell in the first target group, or deactivating an SCell in the second target group; wherein the first field comprises a second target field, a number of bits of the second target field is 1, and a number of groups for grouping the SCells is 2, and the second target field is used for indicating the terminal to activate an SCell in a first SCell group and deactivate an SCell in a second SCell group, or the second target field is used for indicating the terminal to deactivate an SCell in the first SCell group and activate an SCell in the second SCell group.
2. 2 . The method according to claim 1 , wherein a radio network temporary identifier (RNTI) corresponding to the DCI used for indicating the terminal to perform at least one of activation and deactivation of the SCell is different from an RNTI corresponding to the another DCI used for indicating other information.
3. 3 . The method according to claim 1 , wherein the DCI comprises a second field, wherein the second field is used for indicating the other information.
4. 4 . The method according to claim 1 , wherein the SCell grouping information comprises: a number of groups for grouping the SCells.
5. 5 . The method according to claim 1 , wherein obtaining the SCell grouping information by grouping SCells available to the terminal comprises: determining a number of SCells available to the terminal, and grouping SCells available to the terminal when the number of SCells available to the terminal is greater than a preset number.
6. 6 . The method according to claim 1 , wherein the DCI used for indicating the terminal to perform at least one of activation and deactivation of the SCell is generated by adding a new field to an existing DCI format.
7. 7 . An activation determination method, comprising: receiving, by a terminal, downlink control information (DCI) sent by a base station; determining, according to a format of the DCI, the DCI is used for indicating the terminal to perform at least one of activation or deactivation of a secondary cell (SCell); wherein, the DCI comprises a first field used for indicating the terminal to perform at least one of activation and deactivation of the SCell; receiving SCell grouping information, sent by the base station and obtained by grouping SCells available to the terminal, wherein the SCell grouping information comprises SCells in each SCell group; wherein the first field comprises a first target field, a number of bits of the first target field is equal to the number of available SCell groups, the available SCell groups comprise a first target group and a second target group; and performing the at least one of activation and deactivation of the SCell according to the DCI comprises: according to the SCell grouping information and the first target field, perform at least one of: activating an SCell in the first target group, or deactivating an SCell in the second target group; wherein the first field comprises a second target field, a number of bits of the second target field is 1, a number of groups for grouping the SCells is 2, and performing the at least one of activation and deactivation of the SCell according to the DCI comprises: activating an SCell in a first SCell group and deactivating an SCell in a second SCell group according to the second target field, or deactivating an SCell in the first SCell group and activating an SCell in the second SCell group according to the second target field.
8. 8 . The method according to claim 7 , further comprising: determining, according to a radio network temporary identifier (RNTI) corresponding to the DCI, the DCI is used for indicating the terminal to perform the at least one of activation and deactivation of the SCell.
9. 9 . The method according to claim 7 , wherein performing the at least one of activation and deactivation of the SCell according to the DCI comprises: performing, in response to sending a hybrid automatic repeat request-acknowledgement (HARQ-ACK) corresponding to the DCI to the base station, at least one of activation and deactivation of the SCell according to the DCI.
10. 10 . The method according to claim 7 , wherein the DCI further comprises a second field used for indicating other information.
11. 11 . The method according to claim 10 , wherein performing the at least one of activation and deactivation of the SCell according to the DCI comprises: performing, in response to sending of a physical uplink shared channel (PUSCH) scheduled by the DCI or in response to sending of an HARQ-ACK corresponding to a physical downlink shared channel (PDSCH) scheduled by the DCI, the at least one of activation and deactivation of the SCell according to the DCI.
12. 12 . The method according to claim 7 , wherein the SCell grouping information comprises: a number of groups for grouping the SCells.
13. 13 . The method according to claim 7 , wherein the base station is configured to obtain the SCell grouping information by performing steps comprising: determining a number of SCells available to the terminal, and grouping SCells available to the terminal when the number of SCells available to the terminal is greater than a preset number.
14. 14 . The method according to claim 7 , wherein the DCI used for indicating the terminal to perform at least one of activation and deactivation of the SCell is generated by adding a new field to an existing DCI format.
15. 15 . An electronic device, characterized in comprising: a processor; and a memory for storing instructions executable by the processor; wherein, the processor is configured to implement the activation determination method according to claim 7 .
16. 16 . An electronic device, characterized in comprising: a processor; and a memory for storing instructions executable by the processor; wherein, the processor is configured to: send downlink control information (DCI) to a terminal, wherein the DCI is used for indicating the terminal to perform at least one of activation and deactivation of a secondary cell (SCell), a format of the DCI used for indicating the terminal to perform at least one of activation and deactivation of the SCell is different from a format of another DCI used for indicating other information, and the DCI comprises a first field used for indicating the terminal to perform at least one of activation and deactivation of the SCell; obtain SCell grouping information by grouping SCells available to the terminal; and send the SCell grouping information, available to the terminal, to the terminal, wherein the SCell grouping information comprises SCells in each SCell group; wherein the first field comprises a first target field, a number of bits of the first target field is equal to a number of available SCell groups, the available SCell groups comprise a first target group and a second target group, and the first target field is used for indicating the terminal to perform at least one of: activating an SCell in the first target group, or deactivating an SCell in the second target group; wherein the first field comprises a second target field, a number of bits of the second target field is 1, and a number of groups for grouping the SCells is 2, and the second target field is used for indicating the terminal to activate an SCell in a first SCell group and deactivate an SCell in a second SCell group, or the second target field is used for indicating the terminal to deactivate an SCell in the first SCell group and activate an SCell in the second SCell group.
17. 17 . The electronic device according to claim 16 , wherein the processor is further configured to determine a number of SCells available to the terminal, and group SCells available to the terminal when the number of SCells available to the terminal is greater than a preset number.
18. 18 . The electronic device according to claim 16 , wherein the DCI used for indicating the terminal to perform at least one of activation and deactivation of the SCell is generated by adding a new field to an existing DCI format.

Description

CROSS REFERENCE TO RELATED APPLICATION This application is a National Stage of International Application No. PCT/CN2020/121831, filed on Oct. 19, 2020, which is incorporated by reference herein in its entireties for all purposes. BACKGROUND Carrier aggregation (CA) technology can be used to aggregate multiple component carriers (CCs) together, thereby effectively increasing the system bandwidth and network capacity, so as to provide effective support for high-speed data transmission. Currently, the aggregation of up to 16 CCs can be supported. In the case of CA, the terminal can send and receive data on multiple CCs at the same time. In 5G new radio (NR), a CC may also be called a cell. In 5G NR, dual connectivity (DC) technology is introduced. Based on the DC technology, a terminal can remain links with two base stations, and one of the two base stations with which the terminal remain the link is the master station and the other one is the secondary station. All CCs belonging to the master station form a group (referred to as MCG), and all CCs belonging to the secondary station form a group (referred to as SCG). In the CA/DC scenario, the anchor carrier corresponding to MCG is called primary cell (PCell), the anchor carrier corresponding to SCG is called primary secondary cell (PSCell), and the other carriers are called secondary cell (SCell). SUMMARY This disclosure relates to the field of communication technologies, and in particular, to an activation indication method, an activation determination method, an activation indication apparatus, an activation determination apparatus, an electronic device, and a computer-readable storage medium. According to a first aspect of the embodiments of this disclosure, an activation indication method is proposed, which is applicable to a base station and includes: sending downlink control information (DCI) to a terminal, where the DCI is used for indicating the terminal to activate and/or deactivate a secondary cell (SCell). According to a second aspect of the embodiments of this disclosure, an activation determination method is provided, which is applicable to a terminal and includes: receiving DCI sent by a base station; andperforming activation and/or deactivation of an SCell according to the DCI. According to a fifth aspect of the embodiments of this disclosure, an electronic device is provided, including: a processor; anda memory for storing instructions executable by the processor;where the processor is configured to implement the activation indication method as described above. According to a sixth aspect of the embodiments of this disclosure, an electronic device is provided, including: a processor; anda memory for storing instructions executable by the processor;where the processor is configured to implement the activation determination method as described above. BRIEF DESCRIPTION OF THE DRAWINGS In order to illustrate the technical solutions according to some embodiments of this disclosure more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of this disclosure. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative efforts. FIG. 1 is a schematic flowchart of an activation indication method according to some embodiments of this disclosure. FIG. 2 is a schematic flowchart of another activation indication method according to some embodiments of this disclosure. FIG. 3 is a schematic flowchart of an activation determination method according to some embodiments of this disclosure. FIG. 4 is a schematic flowchart of another activation determination method according to some embodiments of this disclosure. FIG. 5 is a schematic flowchart of yet another activation determination method according to some embodiments of this disclosure. FIG. 6 is a schematic flowchart of yet another activation determination method according to some embodiments of this disclosure. FIG. 7 is a schematic flowchart of yet another activation determination method according to some embodiments of this disclosure. FIG. 8 is a schematic flowchart of yet another activation determination method according to some embodiments of this disclosure. FIG. 9 is a schematic flowchart of yet another activation determination method according to some embodiments of this disclosure. FIG. 10 is a schematic flowchart of yet another activation determination method according to some embodiments of this disclosure. FIG. 11 is a block diagram of an activation indication apparatus according to some embodiments of this disclosure. FIG. 12 is a block diagram of another activation indication apparatus according to some embodiments of this disclosure. FIG. 13 is a block diagram of an activation determination apparatus according to some embodiments of this disclosure. FIG. 14 is a block diagram of another activa