Secondary cell activation method, terminal, and storage medium

Abstract

The present disclosure relates to the field of wireless communications, and provides a secondary cell activation method, a terminal, and a storage medium. The method comprises: upon receiving secondary cell activation signaling, reporting a measurement result of a secondary cell to a network side device; and skipping a layer 3 part activation process in a secondary cell activation process.

Description

Secondary cell activation method, terminal and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the application with CN application number 202310927234.X and application date July 26, 2023, and claims its priority. The disclosed content of the CN application is hereby introduced as a whole into this application. Technical Field

[0003] The present disclosure relates to the field of wireless communications, and in particular to a method for activating a secondary cell, a terminal, and a storage medium. Background Art

[0004] With the continuous evolution of 5G+ and 6G networks, carrier aggregation, as a key technology, can significantly improve overall network system performance. Currently, common FR1 frequency band combinations include 3.5G+2.1G CA and 2.1G+1.8G CA. FR2 millimeter wave frequency band combinations include 26G+28G CA, 26G+39G CA, and FR1+FR2 CA. Carrier aggregation technology can address the limited bandwidth of a single frequency band, allowing for more flexible use of multiple frequency bands, leveraging the advantages of multiple bands to create networks with excellent coverage and capacity.

[0005] Summary of the Invention

[0006] According to one aspect of the present disclosure, a secondary cell activation method is proposed, including: after receiving secondary cell activation signaling, reporting the secondary cell measurement result to a network-side device; and skipping the activation process of layer 3 in the secondary cell activation process.

[0007] In some embodiments, the layer 1 measurement procedure in the secondary cell activation procedure is skipped.

[0008] In some embodiments, before receiving the secondary cell activation signaling, the measurement result of the secondary cell is obtained.

[0009] In some embodiments, skipping the activation procedure of the layer 3 part in the secondary cell activation procedure includes: the latency requirement of the secondary cell activation procedure does not include the latency requirement of the layer 3 part.

[0010] In some embodiments, the delay requirement of the secondary cell activation process does not include the delay requirement of the layer 3 part, including: The delay requirement of the secondary cell activation process does not include: T FirstSSB_MAX +15*T SMTC_MAX +8*T rs , where T FirstSSB_MAXThe time at which the first complete synchronization signal and physical broadcast channel block SSB burst set ends, as indicated by the SMTC, is configured for the synchronization signal and physical broadcast channel block measurement time, or is set to less than or equal to 5ms when the SMTC is not configured; T SMTC_MAX The larger value of the SMTC period of the active serving cell and the SMTC period of the activated secondary cell, or the SMTC period of the activated secondary cell; T rs It is the SMTC period of the activated secondary cell or the configured SMTC period.

[0011] In some embodiments, skipping the layer 1 measurement procedure in the secondary cell activation procedure includes: the latency requirement of the secondary cell activation procedure does not include the latency requirement of the layer 1 measurement.

[0012] In some embodiments, the delay requirement of the secondary cell activation process does not include the delay requirement of layer 1 measurement. The delay requirement of the secondary cell activation process does not include: L1-RSRP,measure， Among them, T L1-RSRP,measure The L1-RSRP layer 1 reference signal received power measurement delay.

[0013] In some embodiments, obtaining the measurement result of the secondary cell includes: performing measurement of the secondary cell and obtaining the measurement result within a period of time, but not reporting the measurement result to the network-side device.

[0014] In some embodiments, performing measurement of the secondary cell includes performing at least one of layer 3 measurement and layer 1 measurement of the secondary cell.

[0015] In some embodiments, the measurement result includes at least one of the following: a layer 3 measurement result; a layer 3 measurement result carrying a synchronization signal and a physical broadcast channel block SSB index; a layer 1 measurement result; or a layer 1 measurement result carrying an SSB index.

[0016] In some embodiments, the measurement result is a valid measurement result, and the valid measurement result includes at least one of the following: a valid layer 3 measurement result; a valid layer 3 measurement result carrying a synchronization signal and a physical broadcast channel block SSB index; a valid layer 1 measurement result; or a valid layer 1 measurement result carrying an SSB index.

[0017] In some embodiments, the measurement result includes reference signal received power RSRP, or reference signal received quality RSRQ, or signal-to-noise-and-interference ratio SINR.

[0018] In some embodiments, the measurement result is at least one of a measurement report based on a synchronization signal and a physical broadcast channel block (SSB) and a measurement report based on a channel state information reference signal (CSI-RS).

[0019] In some embodiments, the measurement result reporting of the secondary cell is triggered by the media access control layer control element MAC-CE carried by the same secondary cell activation signaling, or carried by a MAC-CE different from the secondary cell activation signaling, or triggered by downlink control information DCI signaling.

[0020] In some embodiments, when the measurement result reporting of the secondary cell is triggered by a MAC-CE carried in the same MAC-CE as the secondary cell activation signaling, the MAC-CE includes information for instructing the terminal to report the measurement report of the secondary cell.

[0021] In some embodiments, measurement configuration information sent by a network-side device and used by a terminal to report a measurement result is received.

[0022] In some embodiments, receiving measurement configuration information sent by a network-side device for the terminal to report a measurement result includes: receiving measurement configuration information sent by the network-side device through radio resource control (RRC) signaling for the terminal to report a measurement result.

[0023] In some embodiments, the reporting of measurement results is based on event triggering.

[0024] In some embodiments, the event is a secondary cell activation event.

[0025] In some embodiments, reporting the measurement result of the secondary cell to the network-side device includes: reporting the measurement result via radio resource control RRC signaling, a medium access control layer control element MAC-CE, or uplink control information UCI.

[0026] According to another aspect of the present disclosure, a terminal is also proposed, including: a result reporting unit, configured to report the measurement results of the secondary cell to the network side device after receiving the secondary cell activation signaling; and a process execution unit, configured to skip the activation process of the layer 3 part in the secondary cell activation process.

[0027] In some embodiments, the process execution unit is further configured to skip the layer 1 measurement process in the secondary cell activation process.

[0028] According to another aspect of the present disclosure, a terminal is provided, including: a memory; and a processor coupled to the memory, wherein the processor is configured to execute the above-mentioned secondary cell activation method based on instructions stored in the memory.

[0029] According to another aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, on which computer program instructions are stored. When the instructions are executed by a processor, the above-mentioned secondary cell activation method is implemented.

[0030] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0032] The present disclosure can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0033] FIG1 is a schematic flow chart of some embodiments of a method for activating a secondary cell according to the present disclosure;

[0034] FIG2 is a schematic flow chart of other embodiments of the method for activating a secondary cell according to the present disclosure;

[0035] FIG3 is a schematic flow chart of other embodiments of the method for activating a secondary cell according to the present disclosure;

[0036] FIG4 is a schematic structural diagram of some embodiments of the terminal disclosed herein;

[0037] FIG5 is a schematic structural diagram of other embodiments of the terminal disclosed herein; and

[0038] FIG6 is a schematic structural diagram of other embodiments of the terminal disclosed herein. DETAILED DESCRIPTION

[0039] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure.

[0040] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0041] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0042] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0043] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0044] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0045] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0046] In related technologies, activation of unknown secondary cells in carrier aggregation scenarios involves many processes, resulting in a long activation delay. How to reduce the activation delay of unknown secondary cells in carrier aggregation scenarios is an important issue.

[0047] Figure 1 is a flowchart illustrating some embodiments of the secondary cell activation method disclosed herein. This embodiment is performed by a terminal, also referred to as user equipment (UE). A terminal is a device with wireless transceiver capabilities that can communicate with one or more core networks (CNs) via access network equipment in a (radio) access network (R)AN (radio access network). It can be deployed on land, including indoors or outdoors, as a handheld, wearable, or vehicle-mounted device; on water, such as on ships; or in the air, such as on aircraft, balloons, or satellites. The terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, VR (virtual reality) terminal device, AR (augmented reality) terminal device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc.

[0048] In step 110, after receiving the secondary cell activation signaling, the measurement result of the secondary cell is reported to a network-side device, such as a base station.

[0049] In some embodiments, the measurement result is a valid measurement result, for example, a valid layer 3 measurement result, or a valid layer 3 measurement result and carrying an SSB (Synchronization Signal and PBCH block) index, or a valid layer 1 measurement result, or a valid layer 1 measurement result and carrying an SSB index.

[0050] In some embodiments, the measurement result includes RSRP (Reference Signal Received Power), or RSRQ (Reference Signal Received Quality), or SINR (Signal-to-noise and Interference Ratio).

[0051] Valid measurement results include those that meet measurement indicator requirements, such as RSRP, RSRQ, or SINR that meet standard-defined measurement indicator requirements. For example, RSRP, RSRQ, or SINR is greater than a certain threshold.

[0052] In some embodiments, the measurement result is at least one of an SSB-based measurement report and a CSI-RS (Channel State Information-Reference Signal)-based measurement report.

[0053] In some embodiments, the terminal reports the measurement report within a certain time. The certain time is indicated by RRC (Radio Resource Control) signaling or MAC (Medium Access Control) signaling or DCI (Downlink Control Information). The certain time is a corresponding fixed or configurable time offset. For example, the certain time can be expressed as X milliseconds or X time slots relative to the moment when the terminal receives a MAC-CE (Control Element) measurement result reporting trigger indication or secondary cell activation signaling. If the terminal fails to report the measurement result beyond the time, the terminal does not report the measurement result.

[0054] In some embodiments, there is no restriction on the time when the terminal reports the measurement report, that is, the terminal decides when to report the measurement report, that is, the time when the measurement report is reported depends on the terminal implementation.

[0055] In some embodiments, without limiting the time for the terminal to report a measurement report, the delay requirement corresponding to a subsequent process, such as the delay requirement corresponding to the uncertain delay of a TCI (Transmission Configuration Indicator), can be defined as a time period corresponding to the time of TCI configuration / activation relative to the time corresponding to the earlier report of the triggered measurement result report and the first valid L1-RSRP report in the original process, where the triggered measurement result report is, for example, a report corresponding to the reported layer 3 measurement result. The network-side device decides whether to configure the TCI based on the report corresponding to the layer 3 measurement result reported after the secondary cell activation signaling or based on the originally defined L1-RSRP report.

[0056] In some embodiments, the terminal reports the measurement result via RRC, MAC-CE, or UCI (Uplink Control Information). The measurement result reporting meets the measurement reporting criteria defined by the current standard. The measurement result reporting is based on event-triggered aperiodic reporting or periodic reporting.

[0057] The terminal reports the measurement result of the secondary cell to the network side device through an RRC message, for example, through an RRC MeasurementReport message. The measurement result includes the beam-level layer 3 measurement result and the beam index (SSB index).

[0058] In step 120 , the activation process of layer 3 in the secondary cell activation process is skipped.

[0059] The Layer 3 activation process in the secondary cell activation process is skipped, that is, the Layer 3 activation process in the secondary cell activation process is not executed. For example, the latency requirement of the secondary cell activation process does not include the latency requirement of the Layer 3 part. After the terminal reports the measurement results, it directly executes the Layer 1 reference signal received power measurement and reporting process of the secondary cell activation process and performs subsequent related processes, such as executing TCI state activation and fine time tracking, to complete the secondary cell activation.

[0060] In some embodiments, the terminal skips the Layer 3 activation procedure and the Layer 1 measurement procedure in the secondary cell activation procedure. That is, the Layer 3 activation procedure and the Layer 1 measurement procedure in the secondary cell activation procedure are not performed. For example, the latency requirement of the secondary cell activation procedure does not include the latency requirement of the Layer 3 portion and the latency requirement of the Layer 1 measurement.

[0061] After the terminal reports the measurement results, it does not execute the Layer 3 related procedures and the Layer 1 reference signal received power measurement procedure. The terminal directly performs subsequent related procedures to complete the secondary cell activation. For example, after the terminal reports the measurement results, it does not execute the Layer 3 related procedures and the Layer 1 reference signal received power measurement procedure. The terminal directly performs the Layer 1 reference signal received power reporting procedure. The aforementioned reported measurement results can be used for Layer 1 reporting and perform processes such as TCI state activation and fine time tracking.

[0062] In the above embodiment, after receiving the secondary cell activation signaling, the terminal reports the measurement results and skips the Layer 3 activation process in the secondary cell activation process. That is, the enhanced secondary cell activation process is executed to complete the secondary cell activation process. This satisfies the secondary cell activation requirements and reduces activation delay.

[0063] FIG2 is a schematic flow chart of other embodiments of the method for activating a secondary cell according to the present disclosure.

[0064] In step 210, before receiving the secondary cell activation signaling, the terminal obtains the measurement result of the secondary cell.

[0065] In some embodiments, within a period of time, measurement of the secondary cell has been performed and measurement results have been obtained, but the measurement results have not been reported to the network-side device.

[0066] For example, before receiving the secondary cell activation signaling, the terminal has a valid measurement result carrying the SSB index, but does not report it to the network-side device.

[0067] The performed measurement of the secondary cell is at least one of layer 3 measurement and layer 1 measurement of the secondary cell.

[0068] The period of time is a period of time defined by the standard, for example, a period of time corresponding to that defined by the TS 38.133 standard.

[0069] In step 220, after receiving the secondary cell activation signaling, the terminal reports the measurement result of the secondary cell to the network-side device.

[0070] In some embodiments, the measurement result reporting of the secondary cell is triggered by a MAC-CE carried in the same MAC-CE as the secondary cell activation signaling, or a MAC-CE carried in a different MAC-CE from the secondary cell activation signaling, or DCI signaling.

[0071] In the case where the measurement result report of the secondary cell is triggered by the MAC-CE carried on the same MAC-CE as the secondary cell activation signaling, the MAC-CE includes information for instructing the terminal to report the measurement report of the secondary cell. For example, the MAC-CE adds or does not add content. Adding content means adding a field in the original MAC-CE for instructing the terminal to report the content related to the measurement result, and the field is, for example, a new value. For example, the MAC CE may carry a report configuration number, or carry an indication of the measurement report performance. Not adding content means instructing the terminal to report the content related to the measurement result based on the original MAC-CE, and no new value is added to the MAC-CE. After receiving the MAC-CE measurement result reporting trigger indication sent by the network-side device, the terminal reports the measurement result.

[0072] The MAC-CE is different from the secondary cell activation signaling, that is, a new MAC-CE is defined to trigger the reporting of the measurement results.

[0073] In some embodiments, after receiving measurement configuration information for the terminal to report the measurement results sent by the network side device, the terminal reports the measurement results. For example, the measurement configuration information for the terminal to report the measurement results sent by the network side device through RRC signaling is received. The measurement configuration information includes the type of report (periodic or event-triggered), the reported CGI (Cell Global Identifier), the reference signal type used for the report, the reporting time interval, and measurement indicators (RSRP, RSRQ, SINR, etc.).

[0074] In some embodiments, measurement configuration information used by the terminal to report measurement results is configured in secondary cell addition signaling.

[0075] In some embodiments, the measurement result report is an event-triggered report, where the event is a secondary cell activation event.

[0076] In some embodiments, the terminal reports valid measurement results, such as SSB index, RSRP value, RSRQ value, SINR value, etc. The SSB remains detectable during the activation of the secondary cell.

[0077] In some embodiments, if the terminal does not have a valid measurement result, it does not need to report the measurement result to the network device, or the terminal reports a null value or other value. For example, other values ​​include RSRP_0, SS-RSRQ_0, SINR_0, or other possible values. RSRP_0, SS-RSRQ_0, and SINR_0 are specifically defined in the standard and will not be further elaborated here.

[0078] In step 230 , the terminal skips the layer 3 activation procedure and the layer 1 measurement procedure in the secondary cell activation procedure.

[0079] In some embodiments, the terminal performs other possible enhanced operations, which depend on the terminal capabilities.

[0080] In some embodiments, the activation process of the layer 3 includes, for example, an AGC (Automatic Gain Control) adjustment process, a cell search process, a time-frequency tracking process, and a beam information acquisition process.

[0081] In the above embodiment, the terminal executes an enhanced secondary cell activation process. By not executing the relevant processes of the layer 3 part and the layer 1 measurement process in the secondary cell activation process, the secondary cell activation process can be accelerated to achieve the purpose of reducing latency. In addition, since the terminal has measured the secondary cell before the secondary cell activation signaling but has not had time to report the measurement results to the network, after receiving the secondary cell activation signaling, since there is no need to execute part of the activation process, the terminal can avoid repeated measurements, thereby reducing terminal resource overhead and energy consumption.

[0082] 3 is a flowchart of another embodiment of the method for activating a secondary cell according to the present disclosure. This embodiment is applied to a scenario of activating an unknown secondary cell in carrier aggregation, specifically a scenario of activating an unknown secondary cell in frequency range 1 or frequency range 2.

[0083] In step 310, before receiving the secondary cell activation signaling, the terminal has performed measurement of the secondary cell within a period of time defined by the standard and has obtained a valid measurement result, but has not reported the measurement result to the network-side device.

[0084] For example, for the FR1 frequency band, the period is the max(5*measCycleSCell, 5*DRX cycles) period before the terminal receives the secondary cell activation signaling, measCycleSCell is the secondary cell measurement period, and DRX cycles is the DRX (Discontinuous Reception) period.

[0085] For another example, for the FR2 frequency band, a period of time is equal to 4 seconds or 3 seconds before the terminal receives the last activation signaling of PDCCH (Physical Downlink Control Channel, physical downlink control channel) TCI, (PDSCH (Physical DownLink Shared Channel, physical downlink shared channel) TCI (when applicable), and semi-persistent CSI-RS (when applicable) for CQI (Channel Quality Indicator) reporting. 4 seconds corresponds to the terminal supporting power levels of 1 / 5, and 3 seconds corresponds to the terminal supporting power levels of 2 / 3 / 4. And the terminal receives the secondary cell activation signaling no later than the terminal receives the MAC CE signaling for TCI activation.

[0086] In step 320 , after receiving the secondary cell activation signaling, the terminal reports the measurement result of the valid secondary cell to the network-side device.

[0087] The network side device sends measurement configuration information to the terminal for the terminal to report measurement results. For example, the network-configured measurement report is configured in the secondary cell addition signaling. Or an additional measurement reporting mechanism is configured and associated with the measurement configuration.

[0088] In some embodiments, the terminal reports measurement results via RRC or MAC CE or UCI, and the measurement result reports meet the measurement reporting criteria defined in the current standard. For example, the measurement indicators defined in the current TS 38.133 standard include measurement latency and measurement accuracy requirements. More specifically, the measurement requirements for inactivated secondary cells are met, as defined in TS 38.133 Chapter 9, Tables 9.2.5.2-3 and 9.2.5.2-4, which apply to the FR1 and FR2 bands, respectively, and the accuracy requirements are met, as defined in TS 38.133 Chapter 10.

[0089] In some embodiments, the reporting of measurement results is limited to a certain time, or there is no time limit for terminal reporting. If there is no time limit for terminal reporting, that is, it depends on the terminal implementation, then the delay requirement corresponding to the subsequent process, for example, the delay requirement corresponding to the uncertain delay of TCI can be defined as a time period, which is the time corresponding to the earlier report of the TCI configuration / activation time relative to the triggered measurement result report and the first valid L1-RSRP report in the original process. The triggered measurement result report is, for example, a report corresponding to the reported layer 3 measurement result. It is decided by the network side device implementation whether to configure TCI based on the report corresponding to the layer 3 measurement result reported after the secondary cell activation signaling, or based on the originally defined L1-RSRP report.

[0090] In step 330, the delay requirement of the secondary cell activation procedure to be executed does not include the delay requirement of the layer 3 portion and the delay requirement of the layer 1 measurement.

[0091] For example, when a valid measurement result, such as a layer 3 measurement result and carrying an SSB index, is reported after the secondary cell activation signaling, and the terminal reports the layer 1 measurement according to the original secondary cell activation process before the network configures TCI for the terminal, the activation delay requirement is adjusted to: the delay requirement of the layer 3 part of the standard does not include T FirstSSB_MAX +15*T SMTC_MAX +8*T rs , where T FirstSSB_MAX The time when the first complete SSB burst set ends as indicated by SMTC (SSB Measurement Timing Configuration), or within 5ms if SMTC is not configured. SMTC_MAX The longer SMTC cycle among multiple cells or the SMTC cycle of the activated secondary cell, for example, the larger value of the SMTC cycle of the active serving cell and the SMTC cycle of the activated secondary cell, or the SMTC cycle of the activated secondary cell. rs The SMTC period of the activated secondary cell or the SMTC period configured in the high-level parameters. For specific delay definitions, refer to the standard TS 38.133. Or the AGC adjustment part T defined in the standard FirstSSB_MAX +15*T SMTC_MAX Removed, cell search / measurement part 8*T rs Removed or left unchanged or combined with other enhancement operations such as reducing the beam scanning coefficient to an integer less than 8.

[0092] For another example, when a valid measurement result, such as a layer 3 measurement result and carrying an SSB index, is reported after the secondary cell activation signaling, the terminal skips the layer 3 related process and the layer 1 reference signal received power measurement process in the secondary cell activation process, and the terminal directly executes the layer 1 reference signal received power reporting process. The layer 3 measurement result reported above can be used for layer 1 reporting, and processes such as TCI state activation and fine time tracking can be executed. The network-side device configures TCI based on the report of the layer 3 measurement result. The report is earlier than the report corresponding to the layer 1 reference signal received power measurement reported by the terminal according to the original secondary cell activation process. The activation delay requirement is adjusted to: the delay requirement of the layer 3 part in the standard does not include T FirstSSB_MAX +15*T SMTC_MAX +8*T rs The delay requirement of layer 1 measurement does not include T L1- RSRP,measure, where,T L1-RSRP,measure Measure the latency for L1-RSRP.

[0093] In some embodiments, reported layer 3 measurements are used for layer 1 reporting.

[0094] In the above embodiment, in order to address the problem of long activation time for unknown secondary cells in carrier aggregation in frequency range 1 or frequency range 2, the terminal in this embodiment has a valid measurement result and carries an SSB index before receiving the secondary cell activation signaling, and does not report it to the network. After receiving the secondary cell activation signaling, the terminal reports the measurement result. After the terminal reports the measurement result, the terminal does not execute the layer 3 related processes and layer 1 measurement process in the secondary cell activation process. On the one hand, it can speed up the secondary cell activation process to achieve the purpose of reducing latency. On the other hand, it can avoid repeated measurements by the terminal, thereby reducing terminal resource overhead and energy consumption.

[0095] FIG4 is a schematic structural diagram of some embodiments of a terminal disclosed herein, where the terminal includes a result reporting unit 410 and a process execution unit 420 .

[0096] The result reporting unit 410 is configured to report the measurement result of the secondary cell to the network side device after receiving the secondary cell activation signaling.

[0097] For example, the result reporting unit 410 reports the measurement result through RRC signaling, MAC-CE, or UCI.

[0098] In some embodiments, the measurement result includes a layer 3 measurement result, or a layer 3 measurement result with the same SSB index, or a layer 1 measurement result, or a layer 1 measurement result with the SSB index. The measurement result includes RSRP, or RSRQ, or SINR.

[0099] The measurement result is at least one of an SSB-based measurement report and a CSI-RS-based measurement report.

[0100] The measurement result reporting of the secondary cell is triggered by a MAC-CE carried in the same MAC-CE as the secondary cell activation signaling, or a MAC-CE carried in a different MAC-CE from the secondary cell activation signaling, or downlink control information DCI signaling. When the measurement result reporting of the secondary cell is triggered by a MAC-CE carried in the same MAC-CE as the secondary cell activation signaling, the MAC-CE includes information for instructing the terminal to report the measurement report of the secondary cell.

[0101] The measurement result report is an event-triggered report, for example, the event is a secondary cell activation event.

[0102] In some embodiments, as shown in FIG5 , the terminal further includes an information acquiring unit 510 configured to acquire a measurement result of the secondary cell before receiving the secondary cell activation signaling.

[0103] For example, within a period of time, the terminal has performed measurement of the secondary cell and obtained the measurement result, but has not reported the measurement result to the network side device. Performing measurement of the secondary cell includes: performing at least one of layer 3 measurement and layer 1 measurement of the secondary cell.

[0104] In some embodiments, the information acquisition unit 510 is further configured to receive measurement configuration information sent by the network side device for the terminal to report measurement results. For example, the information is received from the network side device via RRC signaling for the terminal to report measurement results.

[0105] The process execution unit 420 is configured to skip the activation process of layer 3 in the secondary cell activation process.

[0106] For example, the latency requirement of the secondary cell activation process does not include the latency requirement of layer 3.

[0107] In some embodiments, the process execution unit 420 is further configured to skip the layer 1 measurement process in the secondary cell activation process.

[0108] For example, the latency requirement of the secondary cell activation procedure does not include the latency requirement of layer 1 measurement.

[0109] In the above embodiment, after receiving the secondary cell activation signaling, the terminal reports the measurement results and skips the Layer 3 activation process in the secondary cell activation process. That is, the enhanced secondary cell activation process is executed to complete the secondary cell activation process. This satisfies the secondary cell activation requirements and reduces activation delay.

[0110] Figure 6 is a schematic diagram of the structure of another embodiment of a terminal disclosed herein. The terminal includes a memory 610 and a processor 620. The memory 610 may be a disk, flash memory, or any other non-volatile storage medium. The memory is used to store the instructions described in the above embodiments. The processor 620 is coupled to the memory 610 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 620 is used to execute the instructions stored in the memory.

[0111] In some embodiments, the processor 620 is coupled to the memory 610 via a BUS 630. The terminal 600 can also be connected to an external storage device 650 via a storage interface 640 to access external data, and can also be connected to a network or another computer system (not shown) via a network interface 660. Detailed descriptions are omitted here.

[0112] In this embodiment, data instructions are stored in a memory and then processed by a processor, which can be applied to a scenario of activating an unknown secondary cell in carrier aggregation, thereby reducing the delay of activating the unknown secondary cell.

[0113] In other embodiments, a computer-readable storage medium stores computer program instructions thereon, which, when executed by a processor, implement the steps of the method in the above-described embodiment. Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, devices, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable non-transient storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0114] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram and the combination of the processes and / or boxes in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0115] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0116] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0117] The present disclosure has been described in detail so far. To avoid obscuring the concept of the present disclosure, some details known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0118] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art will appreciate that the above examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A method for activating a secondary cell, comprising: After receiving the secondary cell activation signaling, reporting the measurement result of the secondary cell to the network side device; as well as Skip the layer 3 activation process in the secondary cell activation process.

2. The method for activating a secondary cell according to claim 1, further comprising: The layer 1 measurement procedure in the secondary cell activation procedure is skipped.

3. The method for activating a secondary cell according to claim 1 or 2, further comprising: Before receiving the secondary cell activation signaling, a measurement result of the secondary cell is obtained.

4. The method for activating a secondary cell according to any one of claims 1 to 3, wherein: The activation process of skipping the layer 3 part in the secondary cell activation process includes: The delay requirement of the secondary cell activation process does not include the delay requirement of layer 3.

5. The method for activating a secondary cell according to claim 4, wherein: The delay requirement of the secondary cell activation process does not include the delay requirement of layer 3, including: The delay requirement of the secondary cell activation process does not include: T FirstSSB_MAX +15*T SMTC_MAX +8*T rs , where T FirstSSB_MAX The time at which the first complete synchronization signal and physical broadcast channel block SSB burst set ends as indicated by the SMTC for the synchronization signal and physical broadcast channel block measurement time configuration, or is set to less than or equal to 5ms when the SMTC is not configured; T SMTC_MAX is the larger value of the SMTC period of the active serving cell and the SMTC period of the activated secondary cell, or the SMTC period of the activated secondary cell; T rs It is the SMTC period of the activated secondary cell or the configured SMTC period.

6. The method for activating a secondary cell according to claim 2, wherein: Skipping the layer 1 measurement process in the secondary cell activation process includes: The delay requirement of the secondary cell activation process does not include the delay requirement of layer 1 measurement.

7. The method for activating a secondary cell according to claim 6, wherein: The delay requirement of the secondary cell activation process does not include the delay requirement of layer 1 measurement, which includes: The delay requirement of the secondary cell activation process does not include: T L1-RSRP,measure , where T L1-RSRP,measure It is the L1-RSRP layer 1 reference signal received power measurement delay.

8. The method for activating a secondary cell according to claim 3, wherein: Acquiring the measurement result of the secondary cell includes: Within a period of time, the measurement of the secondary cell has been performed and the measurement result has been obtained, but the measurement result has not been reported to the network side device.

9. The method for activating a secondary cell according to claim 8, wherein: The performing of the measurement of the secondary cell includes: At least one of layer 3 measurement and layer 1 measurement of the secondary cell has been performed.

10. The method for activating a secondary cell according to any one of claims 1 to 9, wherein: The measurement result includes at least one of the following: Layer 3 measurement results; Layer 3 measurement results and carry synchronization signals and physical broadcast channel block SSB index; Layer 1 measurement results; or Layer 1 measurement result and carries the SSB index.

11. The method for activating a secondary cell according to any one of claims 1 to 10, wherein: The measurement result is a valid measurement result, and the valid measurement result includes at least one of the following: Valid layer 3 measurement results; Valid layer 3 measurement results and carry synchronization signal and physical broadcast channel block SSB index; A valid layer 1 measurement result; or Valid layer 1 measurement result and carries the SSB index.

12. The method for activating a secondary cell according to any one of claims 1 to 11, wherein: The measurement result includes reference signal received power RSRP, or reference signal received quality RSRQ, or signal to noise and interference ratio SINR.

13. The method for activating a secondary cell according to any one of claims 1 to 12, wherein: The measurement result is at least one of a measurement report based on a synchronization signal and a physical broadcast channel block SSB and a measurement report based on a channel state information reference signal CSI-RS.

14. The method for activating a secondary cell according to any one of claims 1 to 13, wherein: The measurement result reporting of the secondary cell is triggered by a media access control layer control element MAC-CE carried on the same secondary cell activation signaling, or by a MAC-CE carried on a different secondary cell activation signaling, or by downlink control information DCI signaling.

15. The method for activating a secondary cell according to claim 14, wherein: In the case where the measurement result reporting of the secondary cell is triggered by a MAC-CE carried on the same MAC-CE as the secondary cell activation signaling, the MAC-CE includes information for instructing the terminal to report the measurement report of the secondary cell.

16. The method for activating a secondary cell according to any one of claims 1 to 15, further comprising: Receive measurement configuration information sent by the network side device and used for the terminal to report the measurement result.

17. The method for activating a secondary cell according to claim 16, wherein: Receiving measurement configuration information sent by the network side device for the terminal to report the measurement result includes: Receive measurement configuration information for the terminal to report the measurement result, which is sent by the network side device through radio resource control RRC signaling.

18. The method for activating a secondary cell according to claim 16, wherein: The report of the measurement result is a report based on event triggering.

19. The method for activating a secondary cell according to claim 18, wherein: The event is a secondary cell activation event.

20. The method for activating a secondary cell according to any one of claims 1 to 19, wherein: Reporting the measurement result of the secondary cell to the network side device includes: Through radio resource control RRC signaling, media access control layer control unit MAC-CE, or uplink The measurement result is reported via the UCI.

21. A terminal, comprising: A result reporting unit, configured to report the measurement result of the secondary cell to a network side device after receiving the secondary cell activation signaling; as well as The process execution unit is configured to skip the activation process of layer 3 in the secondary cell activation process.

22. The terminal according to claim 21, wherein: The process execution unit is further configured to skip a layer 1 measurement process in the secondary cell activation process.

23. A terminal, comprising: Memory; as well as A processor coupled to the memory, wherein the processor is configured to execute the secondary cell activation method according to any one of claims 1 to 20 based on instructions stored in the memory.

24. A non-transitory computer-readable storage medium having computer program instructions stored thereon, wherein when the instructions are executed by a processor, the secondary cell activation method according to any one of claims 1 to 20 is implemented.

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