CN-122002364-A - Auxiliary cell activation method and user equipment

CN122002364ACN 122002364 ACN122002364 ACN 122002364ACN-122002364-A

Abstract

The present disclosure relates to the field of wireless communications, and in particular to a secondary cell activation method, a user equipment, a computer readable storage medium, and a computer program product. The secondary cell activation method is executed by the user equipment and comprises the steps of sending an early measurement report and/or a cell reselection measurement report, receiving a secondary cell activation signaling, and transmitting a channel state information report in a first time delay after receiving the secondary cell activation signaling.

Inventors

YANG LU
YANG PAN

Assignees

中国电信股份有限公司技术创新中心
中国电信股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241107

Claims (20)

1. A secondary cell activation method, performed by a user equipment, comprising: sending an early measurement report and/or a cell reselection measurement report; Receiving a secondary cell activation signaling; And transmitting a channel state information report in a first time delay after receiving the secondary cell activation signaling.
2. The secondary cell activation method of claim 1, wherein: The user equipment supporting early measurement reporting capability, and/or The user equipment supporting early measurement reporting capability for secondary cell activation, and/or The user equipment supports the capability of cell reselection measurement reporting and/or The user equipment supports the capability of cell reselection measurement reporting for secondary cell activation.
3. The secondary cell activation method of claim 1, wherein the early measurement report and/or cell reselection measurement report is valid, satisfying at least one of the following conditions: The user equipment determining that the early measurement report and/or cell reselection measurement report is valid through validity verification; the user equipment receiving indication information indicating that the early measurement report and/or cell reselection measurement report is valid; And the user equipment sends the early measurement report and/or the cell reselection measurement report in a second time delay before receiving the secondary cell activation signaling.
4. The secondary cell activation method of claim 1, wherein the secondary cell is a secondary cell of frequency range one, the secondary cell being known when at least one of the following conditions is satisfied: The user equipment sends the early measurement report and/or the cell reselection measurement report in a third time delay before receiving the secondary cell activation signaling; the synchronization signal and the physical broadcast channel block SSB measured in said third delay remain detectable during secondary cell activation; SSBs measured during the measurement period of the early measurement report remain detectable during secondary cell activation; SSBs measured during the cell reselection measurement period are still detectable during secondary cell activation.
5. The secondary cell activation method of claim 4, wherein the third delay is less than or equal to a second delay before the user equipment receives the secondary cell activation signaling if the early measurement report and/or cell reselection measurement report is valid.
6. The secondary cell activation method of claim 1, wherein the secondary cell is a secondary cell of frequency range two, the secondary cell being known when at least one of the following conditions is satisfied: The user equipment sends the early measurement report and/or the cell reselection measurement report in a fourth time delay before receiving the latest activation signaling of a transmission configuration indication TCI or a channel quality indication CQI report; The synchronization signal and the physical broadcast channel block SSB measured in said fourth delay are still detectable during secondary cell activation; SSBs measured during the measurement period of the early measurement report remain detectable during secondary cell activation; SSBs measured during the cell reselection measurement period are still detectable during secondary cell activation.
7. The secondary cell activation method of claim 6, wherein the fourth delay is less than or equal to a second delay before the user equipment receives the secondary cell activation signaling if the early measurement report and/or cell reselection measurement report is valid.
8. The secondary cell activation method of claim 2, wherein the capability supported by the user equipment is applied to a frequency range one FR1 band and/or a frequency range two FR2 band.
9. The secondary cell activation method of claim 2, wherein the capability supported by the user equipment is applied to a frequency division duplex, FDD, frequency band and/or a time division duplex, TDD, frequency band.
10. The secondary cell activation method of claim 2 wherein the granularity of capabilities supported by the user equipment comprises at least one of per user equipment, per frequency band combination, per feature set per component carrier, or per field description.
11. The secondary cell activation method of claim 1, wherein the user equipment sends the early measurement report and/or cell reselection measurement report within a fifth time delay after receiving the secondary cell activation signaling.
12. The secondary cell activation method of claim 11, wherein the fifth delay comprises at least one of preparing an early measurement report and/or a cell reselection measurement report delay, and waiting for an uplink resource delay.
13. The secondary cell activation method of claim 1, wherein the secondary cell is a secondary cell of frequency range one, the first delay comprising at least one of: the time at which the first complete synchronization signal and physical broadcast channel block SSB burst indicated by the synchronization signal and physical broadcast channel block measurement time configuration SMTC ends, or set to be less than or equal to a first time constant when SMTC is not configured; the SMTC period or configured SMTC period of the secondary cell; a second time constant; the time when the first complete periodic channel state information reference signal (CSI-RS) burst set for secondary cell activation ends; a period of a periodic CSI-RS burst for secondary cell activation; the method comprises the steps that when a first complete CSI-RS burst set for secondary cell activation is ended, the CSI-RS burst set is four CSI-RS resources in two continuous time slots; A CSI-RS burst for secondary cell activation, the CSI-RS burst being defined as four CSI-RS resources in two consecutive slots; Gap length between two aperiodic CSI-RS burst sets.
14. The secondary cell activation method of claim 1, wherein the secondary cell is a secondary cell of frequency range one, the first delay not including at least one of: the synchronization signal and physical broadcast channel block measurement time of the active serving cell configures a larger value in the SMTC period and the SMTC period of the activated secondary cell; Layer one reference signal received power measurement delay; The time delay of the layer one reference signal received power measurement result report or the time delay of obtaining the CSI report resource; time delay between downlink data transmission and acknowledgement; The user equipment finishes processing the time interval from the last activation signaling of the TCI to the first complete available SSB corresponding to the TCI state, wherein the transmission configuration indication of the physical downlink control channel PDCCH and/or the transmission configuration indication of the physical downlink shared channel PDSCH; the last activation signaling of the received PDCCH TCI and/or PDSCH TCI is relative to the activation signaling of the known auxiliary cell or the period between the first valid layer-reference signal received power reports of the unknown auxiliary cell; A period between receiving a radio resource control, RRC, configuration message of a TCI of a periodic CSI-RS for channel quality indication, CQI, reporting relative to an activation signaling of a known secondary cell or a first valid layer one reference signal received power report of an unknown secondary cell; Receiving an activation signaling of a semi-persistent CSI-RS resource set for CQI reporting relative to an activation signaling of a known secondary cell or a period between active layer-one reference signal received power reports of a first one of the unknown secondary cells; RRC flow delay.
15. The secondary cell activation method of claim 1, wherein the secondary cell is a secondary cell of frequency range two, the first delay comprising at least one of: The user equipment finishes processing the time interval from the last activation signaling of the TCI to the first complete available SSB corresponding to the TCI state, wherein the transmission configuration indication of the physical downlink control channel PDCCH and/or the transmission configuration indication of the physical downlink shared channel PDSCH; the last activation signaling of the received PDCCH TCI and/or PDSCH TCI is relative to the activation signaling of the known auxiliary cell or the period between the first valid layer-reference signal received power reports of the unknown auxiliary cell; a radio resource control, RRC, configuration message of a TCI receiving a periodic channel state information reference signal, CSI-RS, for channel quality indication, CQI, report is relative to an active signaling of a known secondary cell or a period between first valid layer one reference signal received power reports of an unknown secondary cell; Receiving an activation signaling of a semi-persistent CSI-RS resource set for CQI reporting relative to an activation signaling of a known secondary cell or a period between active layer-one reference signal received power reports of a first one of the unknown secondary cells; RRC flow delay; And a third time constant.
16. The secondary cell activation method of claim 1, wherein the secondary cell is a secondary cell of frequency range two, the first delay not including at least one of: the time at which the first complete synchronization signal and physical broadcast channel block SSB burst ends, indicated by the synchronization signal and physical broadcast channel block measurement time configuration SMTC, or set to be less than or equal to a fourth time constant when SMTC is not configured; The SMTC period of the active serving cell and the SMTC period of the secondary cell are larger; the SMTC period or configured SMTC period of the secondary cell; Layer one reference signal received power measurement delay; The time delay of the layer one reference signal received power measurement result report or the time delay of acquiring the CSI report resource.
17. A user equipment, comprising: A transmitting module configured to transmit an early measurement report and/or a cell reselection measurement report; A receiving module configured to receive the secondary cell activation signaling; And the transmission module is configured to transmit a channel state information report in a first time delay after receiving the secondary cell activation signaling.
18. A user equipment, comprising: Memory, and A processor coupled to the memory, the processor configured to perform the secondary cell activation method according to any one of claims 1 to 16 based on instructions stored in the memory.
19. A computer readable storage medium storing computer instructions which, when executed by a processor, implement the secondary cell activation method of any one of claims 1 to 16.
20. A computer program product storing computer instructions which, when executed by a processor, implement the secondary cell activation method of any one of claims 1 to 16.

Description

Auxiliary cell activation method and user equipment Technical Field The present disclosure relates to the field of wireless communications, and in particular to a secondary cell activation method, a user equipment, a computer readable storage medium, and a computer program product. Background With the development of mobile networks, the data traffic demands in the communication system are increasing, and the bandwidth of a single frequency band or a single carrier is limited, so that the capacity is limited, and the demands of communication services are difficult to meet. In the related art, carrier aggregation (Carrier Aggregation, CA) technology is utilized to allow multiple carriers or frequency bands to be combined into a wider frequency band for transmitting data, so that the capacity and bearing capacity of the network can be improved. The use of carrier aggregation can improve the flexibility of frequency band use, is favorable for realizing the cooperative deployment of high, medium and low frequency bands, and improves the coverage capacity and capacity bearing capacity of the network. However, there are secondary cell activation procedures in carrier aggregation, for example, the activation procedures of an unknown secondary cell include Automatic Gain Control (AGC) adjustment, cell detection, layer one reference signal received power (L1-RSRP) measurement and report, transmission configuration indication activation, fine time tracking, etc., which involve more procedures, resulting in longer secondary cell activation delay. Disclosure of Invention In the related art, in the activation process of the secondary cell, the problems of more flow and longer time delay exist. In view of this, the present disclosure provides a secondary cell activation method capable of effectively solving the above-described problems. According to one aspect of the disclosure, a secondary cell activation method is provided, which is performed by a user equipment and includes transmitting an early measurement report and/or a cell reselection measurement report, receiving a secondary cell activation signaling, and transmitting a channel state information report within a first time delay after receiving the secondary cell activation signaling. In some embodiments, the user equipment supports the capability of early measurement reporting, and/or the user equipment supports the capability of early measurement reporting for secondary cell activation, and/or the user equipment supports the capability of cell reselection measurement reporting for secondary cell activation. In some embodiments, the early measurement report and/or cell reselection measurement report is valid, at least one of the following conditions is met, namely the user equipment determines that the early measurement report and/or cell reselection measurement report is valid through validity verification, the user equipment receives indication information, indicates that the early measurement report and/or cell reselection measurement report is valid, and the user equipment sends the early measurement report and/or cell reselection measurement report in a second time delay before receiving the secondary cell activation signaling. In some embodiments, the secondary cell is a secondary cell of frequency range one, and it is known that the secondary cell satisfies at least one of the conditions that the user equipment transmits the early measurement report and/or the cell reselection measurement report within a third time delay before receiving the secondary cell activation signaling, that the synchronization signal and the physical broadcast channel block SSB measured within the third time delay are still detectable during secondary cell activation, that the SSB measured within a measurement period of the early measurement report is still detectable during secondary cell activation, and that the SSB measured within the cell reselection measurement period is still detectable during secondary cell activation. In some embodiments, the condition that the early measurement report and/or cell reselection measurement report are valid is that the user equipment is within a second time delay before receiving the secondary cell activation signaling, and in the case of sending the early measurement report and/or the cell reselection measurement report, the third delay is less than or equal to the second delay. In some embodiments, the secondary cell is a secondary cell of frequency range two, and it is known that the user equipment transmits the early measurement report and/or the cell reselection measurement report in a fourth delay before receiving a latest activation signaling of a transmission configuration indication TCI or a channel quality indication CQI report, a synchronization signal and a physical broadcast channel block SSB measured in the fourth delay remain detectable during activation of the secondary cell, a SSB measured in a measurement period of the early