CN-122027090-A - Information transmission method, device, equipment and non-transient readable storage medium

Abstract

The application provides an information transmission method, an information transmission device, information transmission equipment and a non-transitory readable storage medium, wherein the information transmission method is applied to a terminal and comprises the steps of receiving a first signaling sent by network equipment, wherein the first signaling is used for triggering at least one of feeding back Channel State Information (CSI) to the network equipment, measuring a reference signal corresponding to the CSI, transmitting the reference signal and sending the CSI to the network equipment. The method and the device can support the terminal to obtain the channel state information of at least one cell in advance in the cell switching process, inform network equipment and support the target cell to obtain the channel state information of the terminal, thereby ensuring the data transmission performance of the terminal after cell switching, and well solving the problem that the data transmission performance of the cell switching scheme cannot be supported in the prior art.

Inventors

• LI HUI
• LUO YAJUAN
• DA REN

Assignees

• 大唐移动通信设备有限公司

Dates

Publication Date

20260512

Application Date

20241108

Claims (20)

1. 1. An information transmission method applied to a terminal, comprising the following steps: The method comprises the steps of receiving a first signaling sent by network equipment, wherein the first signaling is used for triggering at least one of feeding back Channel State Information (CSI) to the network equipment, measuring a reference signal corresponding to the CSI and transmitting the reference signal; And sending the CSI to the network equipment.
2. 2. The information transmission method according to claim 1, wherein the first signaling includes at least one of: media access control element, MAC-CE, signaling for activating a transmission configuration indication, TCI, state of a candidate cell; Downlink Control Information (DCI) signaling sent by a serving cell of the terminal; MAC-CE signaling for indicating cell handover; a random access response sent by a target cell of the terminal; DCI (downlink control information) sent by a target cell of the terminal and used for scheduling random access response resources; And the DCI for scheduling the contention resolution resource is sent by the target cell of the terminal.
3. 3. The information transmission method of claim 1, wherein the CSI comprises channel state measurements for at least one first cell comprising measurements for at least one reference signal resource, and wherein the first cell comprises a target cell or a candidate cell.
4. 4. An information transmission method according to claim 3, characterized in that the first cell and/or the reference signal resource is determined based on at least one of the following information: the terminal performs resource index corresponding to layer 1 reference signal receiving power L1-RSRP and/or layer 1 signal to interference plus noise ratio L1-SINR in LTM reporting; Target cell and/or TCI state indicated in cell switching signaling; The TCI state of at least one cell activated by the MAC-CE signaling; And the candidate cell identification and/or the reference signal resource index indicated by the first signaling.
5. 5. The information transmission method according to claim 1, wherein the first signaling includes an information indication of channel resources for carrying the CSI, the information indication including at least one of time domain resource information, frequency domain resource information, TCI information, and an uplink channel resource index.
6. 6. The information transmission method according to claim 1 or 5, wherein transmitting CSI to the network device comprises: transmitting CSI to the network equipment through a first resource; wherein the first resource comprises at least one of: The Physical Uplink Shared Channel (PUSCH) resource is used for bearing a Radio Resource Control (RRC) request sent to a target cell; Configuring and authorizing CG-PUSCH resources of physical uplink shared channel pre-configured by the candidate cell; Dynamically allocated PUSCH resources used for bearing first uplink data by the candidate cell; And channel resources of the CSI indicated by the first signaling.
7. 7. The information transmission method according to claim 6, wherein the first uplink data is data of a reconfiguration complete message.
8. 8. The information transmission method according to claim 1, wherein the first signaling includes CSI reporting configuration information including at least one of a CSI trigger state index and a CSI reporting configuration index.
9. 9. The information transmission method according to claim 1, wherein the transmitting CSI to the network device comprises: transmitting CSI to the network device after a first time delay; The first time delay refers to a first time length after the terminal receives the first signaling, and the first time delay is predefined by a system, is configured through RRC signaling, or is indicated by the first signaling.
10. 10. The information transmission method according to claim 1 or 7, wherein the CSI is transmitted mapped on the same PUSCH resource as the first uplink data transmitted by the terminal to the target cell.
11. 11. An information transmission method applied to a network device, comprising: The method comprises the steps that a first signaling is sent to a terminal, wherein the first signaling is used for triggering at least one of the following operations that the terminal feeds back the CSI to the network equipment, the terminal measures a reference signal corresponding to the CSI, and the terminal transmits the reference signal; And receiving the CSI sent by the terminal.
12. 12. The information transmission method according to claim 11, wherein the first signaling includes at least one of: MAC-CE signaling to activate TCI state of candidate cells; DCI signaling sent by a serving cell of the terminal; MAC-CE signaling for indicating cell handover; a random access response sent by a target cell of the terminal; DCI (downlink control information) sent by a target cell of the terminal and used for scheduling random access response resources; And the DCI for scheduling the contention resolution resource is sent by the target cell of the terminal.
13. 13. The information transmission method of claim 11, wherein the CSI comprises channel state measurements for at least one first cell comprising measurements for at least one reference signal resource, and wherein the first cell comprises a target cell or a candidate cell.
14. 14. The information transmission method according to claim 13, characterized in that the first cell and/or the reference signal resource is determined based on at least one of the following information: the terminal performs resource index corresponding to L1-RSRP and/or L1-SINR in LTM report, wherein the LTM represents layer1 and/or layer2 triggering mobility; Target cell and/or TCI state indicated in cell switching signaling; The TCI state of at least one cell activated by the MAC-CE signaling; And the candidate cell identification and/or the reference signal resource index indicated by the first signaling.
15. 15. The information transmission method of claim 11, wherein the first signaling comprises an information indication of channel resources for carrying the CSI, the information indication comprising at least one of time domain resource information, frequency domain resource information, TCI information, and an uplink channel resource index.
16. 16. The information transmission method according to claim 11 or 15, wherein the receiving CSI transmitted by the terminal includes: receiving CSI sent by the terminal through a first resource; wherein the first resource comprises at least one of: PUSCH resources for carrying RRC requests sent to the target cell; CG-PUSCH resources preconfigured by the candidate cell; Dynamically allocated PUSCH resources used for bearing first uplink data by the candidate cell; And channel resources of the CSI indicated by the first signaling.
17. 17. The information transmission method according to claim 16, wherein the first uplink data is data of a reconfiguration complete message.
18. 18. The information transmission method according to claim 11, wherein the first signaling includes CSI reporting configuration information including at least one of a CSI trigger state index and a CSI reporting configuration index.
19. 19. The information transmission method according to claim 11, wherein the receiving CSI transmitted by the terminal includes: receiving CSI sent by the terminal after a first time delay; The first time delay refers to a first time length after the terminal receives the first signaling, and the first time delay is predefined by a system, is configured through RRC signaling, or is indicated by the first signaling.
20. 20. The information transmission method according to claim 11 or 17, wherein the CSI is transmitted mapped on the same PUSCH resource as the first uplink data transmitted by the terminal to the target cell.

Description

Information transmission method, device, equipment and non-transient readable storage medium Technical Field The present application relates to the field of communications technologies, and in particular, to an information transmission method, apparatus, device, and non-transitory readable storage medium. Background In the prior art, when a terminal moves from the coverage area of one cell to the coverage area of another cell, related operations of cell switching need to be executed, but the cell switching scheme in the prior art has the defects that the data transmission performance and the like cannot be guaranteed, and the related scheme does not exist to support the improvement of the data transmission performance. As described above, the prior art has a problem that the data transmission performance of the cell switching scheme cannot be ensured. Disclosure of Invention The application aims to provide an information transmission method, an information transmission device, an information transmission equipment and a non-transient readable storage medium, so as to solve the problem that the data transmission performance of a cell switching scheme cannot be ensured in the prior art. In order to solve the above technical problems, an embodiment of the present application provides an information transmission method, which is applied to a terminal, and includes: The method comprises the steps of receiving a first signaling sent by network equipment, wherein the first signaling is used for triggering at least one of feeding back Channel State Information (CSI) to the network equipment, measuring a reference signal corresponding to the CSI and transmitting the reference signal; And sending the CSI to the network equipment. Optionally, the first signaling includes at least one of: media access control element, MAC-CE, signaling for activating a transmission configuration indication, TCI, state of a candidate cell; Downlink Control Information (DCI) signaling sent by a serving cell of the terminal; MAC-CE signaling for indicating cell handover; a random access response sent by a target cell of the terminal; DCI (downlink control information) sent by a target cell of the terminal and used for scheduling random access response resources; And the DCI for scheduling the contention resolution resource is sent by the target cell of the terminal. Optionally, the CSI comprises channel state measurement results of at least one first cell, wherein the channel state measurement results comprise measurement results aiming at least one reference signal resource, and the first cell comprises a target cell or a candidate cell. Optionally, the first cell and/or the reference signal resource is determined according to at least one of the following information: the terminal performs resource index corresponding to layer 1 reference signal receiving power L1-RSRP and/or layer 1 signal to interference plus noise ratio L1-SINR in LTM reporting; Target cell and/or TCI state indicated in cell switching signaling; The TCI state of at least one cell activated by the MAC-CE signaling; And the candidate cell identification and/or the reference signal resource index indicated by the first signaling. Optionally, the first signaling includes an information indication of channel resources for carrying the CSI, where the information indication includes at least one of time domain resource information, frequency domain resource information, TCI information, and an uplink channel resource index. Optionally, sending CSI to the network device includes: transmitting CSI to the network equipment through a first resource; wherein the first resource comprises at least one of: The Physical Uplink Shared Channel (PUSCH) resource is used for bearing a Radio Resource Control (RRC) request sent to a target cell; Configuring and authorizing CG-PUSCH resources of physical uplink shared channel pre-configured by the candidate cell; Dynamically allocated PUSCH resources used for bearing first uplink data by the candidate cell; And channel resources of the CSI indicated by the first signaling. Optionally, the first uplink data is data of a reconfiguration complete message. Optionally, the first signaling includes CSI reporting configuration information, where the CSI reporting configuration information includes at least one of a CSI trigger state index and a CSI reporting configuration index. Optionally, the sending CSI to the network device includes: transmitting CSI to the network device after a first time delay; The first time delay refers to a first time length after the terminal receives the first signaling, and the first time delay is predefined by a system, is configured through RRC signaling, or is indicated by the first signaling. Optionally, the CSI and the first uplink data sent by the terminal to the target cell are sent by mapping on the same PUSCH resource. The embodiment of the application also provides an information transmission method which is