Primary secondary cell adjustment method, device and storage medium

Abstract

Embodiments of the present application provide a primary and secondary cell adjustment method, device and storage medium, and relate to the technical field of communication. A network device preconfigures configuration information corresponding to a candidate PScell to a terminal device, which includes configuration information for L1 measurement and / or configuration information for early UL / DL synchronization. Based on the configuration information, the terminal device implements a PScell addition or change mechanism based on L1 measurement and / or early UL / DL synchronization conditions, improves the efficiency of PScell addition or change, and reduces the adverse impact of PScell addition or change on communication services.

Description

Primary and secondary cell adjustment method, device and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 8, 2024, with application number 202410178286.6 and application name “Main and auxiliary cell adjustment method, device and storage medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a method, device, and storage medium for adjusting primary and secondary cells. Background Art

[0003] When the service quality of the serving cell is poor, there is a neighboring cell with better service quality, or cell load balancing is required, the terminal in the connected state (RRC_connected) can trigger cell switching and switch from the serving cell to the target cell.

[0004] For dual connectivity (DC) scenarios, the communication protocol introduces a conditional PScell ​​addition / change (CPAC) mechanism, which requires consideration of primary cell (Pcell) switching, PScell ​​addition, and PScell ​​changes (i.e., PScell ​​switching) in DC scenarios. In CPCA, layer 3 (L3) measurements can be performed on candidate cells, and based on the measurement results and the trigger conditions of the candidate cells, random access is initiated to the target cell that meets the requirements.

[0005] However, the efficiency of adding or changing PScells in the above method is low. In particular, when the terminal is in a fast-fading channel, cell switching may not be timely, resulting in adverse effects such as wireless link disconnection, data transmission interruption, and severe rate reduction. Summary of the Invention

[0006] Embodiments of the present application provide a primary and secondary cell adjustment method, device, and storage medium, which are applied to the field of communication technology and improve the efficiency of PScell ​​addition or change by L1 measurement and / or early UL / DL synchronization.

[0007] In the first aspect, an embodiment of the present application proposes a method for adjusting primary and secondary cells. The method includes: indicating first information, the first information is used to indicate first configuration information corresponding to a candidate PScell, the first configuration information is used for conditional addition or change of a PScell, and the first configuration information includes: second configuration information for L1 measurement and / or third configuration information for early uplink UL / downlink DL synchronization. In this embodiment, the network device pre-configures the first configuration information corresponding to the candidate PScell ​​to the terminal device, and the terminal device can improve the efficiency of PScell ​​addition or change by performing L1 measurement and / or early UL / DL in accordance with the first configuration information during the conditional PScell ​​addition or change process for the candidate PScell.

[0008] In an optional embodiment of the first aspect, the second configuration information includes: resource configuration information for L1 measurement and / or result processing configuration information for L1 measurement result processing, where the resource configuration information includes time-frequency resource information of measurement objects related to CSI and / or SSB. In this embodiment, the network device pre-configures the resource configuration information for L1 measurement and / or result processing configuration information for L1 measurement result processing to the terminal device, so that the terminal device can perform L1 measurement according to the resource configuration information and / or process the L1 measurement result according to the result processing configuration information when adding or changing a conditional PScell, thereby improving the efficiency of adding or changing a PScell ​​based on L1 measurement, and provides two optional schemes for resource configuration information for L1 measurement.

[0009] In an optional embodiment of the first aspect, the result processing configuration information includes: a first decision condition and a first measurement event for determining the first decision condition, wherein the first decision condition is used to trigger measurement result reporting based on L1 measurement and / or the addition or change of candidate PScells; and / or a second decision condition and a second measurement event for determining the second decision condition, wherein the second decision condition is used to trigger early UL / DL synchronization. In this embodiment, measurement result reporting based on L1 measurement and / or the addition or change of candidate PScells are triggered by the first decision condition and the first measurement event, and / or early UL / DL synchronization is triggered by the second decision condition and the second measurement event, so that measurement result reporting based on L1 measurement, addition or change of candidate PScells, and / or early UL / DL synchronization are timely performed during the addition or change of conditional PScells, thereby improving the efficiency of PScell ​​addition or change.

[0010] In an optional embodiment of the first aspect, the first measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than a first absolute value; the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell, and / or the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than a first threshold value, and the measurement result of the candidate PScell ​​is greater than a second threshold value. And / or, the second measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than a second absolute value; the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source Pcell, and / or the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than a third threshold value, and the measurement result of the candidate PScell ​​is greater than a fourth threshold value. In this embodiment, multiple optional schemes for the first and second measurement events are provided.

[0011] In an optional embodiment of the first aspect, the first decision condition includes one or more of the following: within the first time window, the measurement result obtained from each measurement satisfies the first measurement event; within the first time window, the average of the measurement results obtained from all measurements satisfies the first measurement event; within the first time window, the measurement results obtained from at least N measurements satisfy the first measurement event; the measurement results obtained from N consecutive measurements all satisfy the first measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the first measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the first measurement event. And / or, the second decision condition includes one or more of the following: within the second time window, the measurement result obtained from each measurement satisfies the second measurement event; within the second time window, the average of the measurement results obtained from all measurements satisfies the second measurement event; within the second time window, at least N measurement results satisfy the second measurement event; the measurement results obtained from N consecutive measurements all satisfy the second measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the second measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the second measurement event. In this embodiment, multiple optional schemes for the first decision condition and the second decision condition are provided.

[0012] In an optional embodiment of the first aspect, the first configuration information includes one or more of the following: a first time window, a second time window, N, M, and a measurement interval between adjacent measurements. The network device may configure the first time window, the second time window, N, M, and the measurement interval between adjacent measurements through the first configuration information.

[0013] In an optional embodiment of the first aspect, the result processing configuration information further includes one or more of the following: a cell identifier, the number of measurement beams, a measurement object related to CSI and / or SSB, a measurement type, and an L1 measurement interval. In this embodiment, in addition to the decision condition and measurement event value card for triggering the operation, other optional content included in the result processing configuration information is provided.

[0014] In an optional embodiment of the first aspect, the measurement type includes one or more of the following: RSRP, RSRQ, and SINR. In this embodiment, the L1 measurement may be one or more of RSRP, RSRQ, and SINR of a measured cell. These measurement types reflect the service quality of the cell, so as to select a cell with better service quality when adding or changing a PS cell.

[0015] In an optional embodiment of the first aspect, the method further includes: obtaining second information, the second information being used to request early UL / DL synchronization of the candidate PScell; indicating third information, the third information being used to indicate PSS, SSS, and PBCH information corresponding to the candidate PScell, the PSS, SSS, and PBCH information being used for DL ​​synchronization, and / or the third information being used to indicate TA timing information corresponding to the candidate PScell, the TA timing information being used for UL synchronization. In this embodiment, after the network device configures the first configuration information for the terminal device, the terminal device may request the network device to perform UL / DL synchronization of the candidate PScell ​​via the second information, and the network device may indicate to the terminal device relevant information for UL / DL synchronization of the candidate PScell ​​via the third information, so as to perform early UL / DL synchronization of the candidate PScell.

[0016] In an optional embodiment of the first aspect, when the third information is used to indicate TA timing information corresponding to the candidate PScell, the second information is used to initiate PRACH access of the candidate PScell; or, when the third information is used to indicate PSS, SSS, and PBCH information corresponding to the candidate PScell, the second information is used to request reading of the SSB of the candidate PScell. In this embodiment, the terminal device can obtain the TA timing information by initiating PRACH access of the candidate PScell, or obtain the PSS, SSS, and PBCH information corresponding to the candidate PScell ​​by requesting reading of the SSB of the candidate PScell.

[0017] In the second aspect, an embodiment of the present application proposes a method for adjusting primary and secondary cells. The method includes: obtaining first information, the first information is used to indicate first configuration information corresponding to a candidate PScell, the first configuration information includes: second configuration information for L1 measurement and / or third configuration information for early UL / DL synchronization; according to the first configuration information, conditional addition or change of a PScell ​​is performed for the candidate PScell. In this embodiment, the network device pre-configures the first configuration information corresponding to the candidate PScell ​​to the terminal device, and the terminal device can improve the efficiency of PScell ​​addition or change by performing L1 measurement and / or early UL / DL in the process of conditional addition or change of the candidate PScell ​​according to the first configuration information.

[0018] In an optional embodiment of the second aspect, the second configuration information includes: resource configuration information for L1 measurement and / or result processing configuration information for L1 measurement results, where the resource configuration information includes time-frequency resource information of measurement objects related to CSI and / or SSB. In this embodiment, the network device pre-configures the resource configuration information for L1 measurement and / or result processing configuration information for L1 measurement result processing to the terminal device, so that the terminal device can perform L1 measurement according to the resource configuration information and process the L1 measurement result according to the result processing configuration information when adding or changing a conditional PScell, thereby improving the efficiency of adding or changing a PScell ​​based on L1 measurement, and provides two optional schemes for resource configuration information for L1 measurement.

[0019] In an optional embodiment of the second aspect, the result processing configuration information includes: a first decision condition and a first measurement event for determining the first decision condition, wherein the first decision condition is used to trigger measurement result reporting based on L1 measurement and / or the addition or change of candidate PScells; and / or a second decision condition and a second measurement event for determining the second decision condition, wherein the second decision condition is used to trigger early UL / DL synchronization. In this embodiment, measurement result reporting based on L1 measurement and / or the addition or change of candidate PScells are triggered by the first decision condition and the first measurement event, and / or early UL / DL synchronization is triggered by the second decision condition and the second measurement event, so that measurement result reporting based on L1 measurement, addition or change of candidate PScells, and / or early UL / DL synchronization are timely performed during the addition or change of conditional PScells, thereby improving the efficiency of PScell ​​addition or change.

[0020] In an optional embodiment of the second aspect, the first measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than a first absolute value; the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell, and / or the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than a first threshold value, and the measurement result of the candidate PScell ​​is greater than a second threshold value. And / or, the second measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than a second absolute value; the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source Pcell, and / or the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than a third threshold value, and the measurement result of the candidate PScell ​​is greater than a fourth threshold value. This embodiment provides multiple optional schemes for the first and second measurement events.

[0021] In an optional embodiment of the second aspect, the first decision condition includes one or more of the following: within the first time window, the measurement result obtained from each measurement satisfies the first measurement event; within the first time window, the average of the measurement results obtained from all measurements satisfies the first measurement event; within the first time window, the measurement results obtained from at least N measurements satisfy the first measurement event; the measurement results obtained from N consecutive measurements all satisfy the first measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the first measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the first measurement event. And / or, the second decision condition includes one or more of the following: within the second time window, the measurement result obtained from each measurement satisfies the second measurement event; within the second time window, the average of the measurement results obtained from all measurements satisfies the second measurement event; within the second time window, at least N measurement results satisfy the second measurement event; the measurement results obtained from N consecutive measurements all satisfy the second measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the second measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the second measurement event. In this embodiment, multiple optional schemes for the first decision condition and the second decision condition are provided.

[0022] In an optional embodiment of the second aspect, the first configuration information includes one or more of the following: a first time window, a second time window, N, M, and a measurement interval between adjacent measurements. The network device may configure the first time window, the second time window, N, M, and the measurement interval between adjacent measurements through the first configuration information.

[0023] In an optional embodiment of the second aspect, the result processing configuration information further includes one or more of the following: a cell identifier, the number of measurement beams, a measurement object related to CSI / SSB, a measurement type, and an L1 measurement interval. In this embodiment, in addition to the decision condition and measurement event value card for triggering the operation, other optional content included in the result processing configuration information is provided.

[0024] In an optional embodiment of the second aspect, the measurement type includes one or more of the following: RSRP, RSRQ, and SINR. In this embodiment, the L1 measurement may be one or more of RSRP, RSRQ, and SINR of a measured cell. These measurement types reflect the service quality of the cell, so as to select a cell with better service quality when adding or changing a PS cell.

[0025] In an optional embodiment of the second aspect, conditionally adding or changing a candidate PScell ​​based on the first configuration information includes: adding or changing the candidate PScell ​​to the candidate PScell ​​if the measurement result of the candidate PScell ​​meets a first judgment condition. In this embodiment, based on the first judgment condition, the terminal device is added to or changed to a better PScell. L1 measurement improves the efficiency of determining whether the measurement result of the candidate PScell ​​meets the first judgment condition, thereby improving the efficiency of PScell ​​addition or change.

[0026] In an optional embodiment of the second aspect, if the measurement result of the candidate PScell ​​satisfies a first judgment condition, adding or changing to the candidate PScell ​​includes: if the measurement result of the candidate PScell ​​satisfies the first judgment condition, sending fourth information for reporting the measurement result of the candidate PScell; obtaining fifth information for instructing to add or change to the candidate PScell; and adding or changing to the candidate PScell. In this embodiment, if the measurement result of the candidate PScell ​​satisfies the first judgment condition, the terminal device is triggered to report the measurement result of the candidate PScell, and the network device instructs the terminal device to add or change the candidate PScell ​​based on the report of the terminal device.

[0027] In an optional embodiment of the second aspect, if the measurement result of the candidate PScell ​​meets the first decision condition, adding or changing to the candidate PScell ​​includes: if the measurement result of the candidate PScell ​​meets the first decision condition, randomly accessing the candidate PScell. In this embodiment, if the measurement result of the candidate PScell ​​meets the first decision condition, the terminal device proactively adds or changes the candidate PScell.

[0028] In an optional embodiment of the second aspect, conditionally adding or changing a candidate PScell ​​according to the first configuration information includes: if a measurement result of the candidate PScell ​​meets a second judgment condition, performing UL / DL synchronization on the candidate PScell ​​in advance according to third configuration information to obtain synchronization information; and if it is determined that the candidate PScell ​​is to be added or changed, adding or changing the candidate PScell ​​based on the synchronization information. In this embodiment, the efficiency of adding or changing the candidate PScell ​​is improved by performing UL / DL synchronization in advance.

[0029] In an optional embodiment of the second aspect, performing UL / DL synchronization on a candidate PScell ​​in advance to obtain synchronization information includes: sending second information, the second information being used to requesting UL / DL synchronization of the candidate PScell ​​in advance; obtaining third information, the third information being used to indicate PSS, SSS, and PBCH information corresponding to the candidate PScell, the PSS, SSS, and PBCH information being used for DL ​​synchronization, and / or the third information being used to indicate TA timing information corresponding to the candidate PScell, the TA timing information being used for UL synchronization. In this embodiment, a terminal device requests a network device to perform UL / DL synchronization of the candidate PScell, and the network device indicates to the terminal device relevant information for UL / DL synchronization of the candidate PScell, so as to perform UL / DL synchronization of the candidate PScell ​​in advance.

[0030] In an optional embodiment of the second aspect, when the third information indicates TA timing information, the second information is used to initiate PRACH access of the candidate PScell; or, when the third information indicates PSS, SSS, and PBCH information, the second information is used to request reading of the SSB of the candidate PScell. In this embodiment, the terminal device can obtain the TA timing information by initiating PRACH access of the candidate PScell, or obtain the PSS, SSS, and PBCH information corresponding to the candidate PScell ​​by requesting reading of the SSB of the candidate PScell.

[0031] In an optional embodiment of the second aspect, the first configuration information further includes physical uplink control channel (PUCCH) configuration information indicating a physical uplink control channel (PUCCH) without PRACH access corresponding to the candidate PScell. Adding or changing the candidate PScell ​​based on the synchronization information includes: determining the validity of TA timing information; if the TA timing information is valid, communicating with the candidate SN where the candidate PScell ​​is located based on the PUCCH configuration information; otherwise, initiating PRACH access to the candidate SN. In this embodiment, if the TA timing information is valid, there is no need to initiate PRACH access, thereby improving the efficiency of PScell ​​addition or change.

[0032] In the third aspect, an embodiment of the present application provides a network device, including: an indication module for indicating first information, the first information is used to indicate first configuration information corresponding to the candidate PScell, the first configuration information is used for conditional addition or change of the PScell, and the first configuration information includes: second configuration information for L1 measurement and / or third configuration information for early uplink UL / downlink DL synchronization.

[0033] In an optional embodiment of the third aspect, the second configuration information includes: resource configuration information for L1 measurement and / or result processing configuration information for L1 measurement result processing, and the resource configuration information includes time-frequency resource information of measurement objects related to CSI and / or SSB.

[0034] In an optional embodiment of the third aspect, the result processing configuration information includes: a first decision condition and a first measurement event for judging the first decision condition, wherein the first decision condition is used to trigger the reporting of the measurement results of the L1 measurement and / or the addition or change of the candidate PScell; and / or, a second decision condition and a second measurement event for judging the second decision condition, wherein the second decision condition is used to trigger early UL / DL synchronization.

[0035] In an optional embodiment of the third aspect, the first measurement event includes one or more of the following: a measurement result of the candidate PScell ​​is greater than a first absolute value; a difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell, and / or a difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than a first threshold value, and the measurement result of the candidate PScell ​​is greater than a second threshold value. And / or, the second measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than a second absolute value; the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source Pcell, and / or the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than a third threshold value, and the measurement result of the candidate PScell ​​is greater than a fourth threshold value.

[0036] In an optional embodiment of the third aspect, the first judgment condition includes one or more of the following: within the first time window, the measurement result obtained from each measurement satisfies the first measurement event; within the first time window, the average of the measurement results obtained from all measurements satisfies the first measurement event; within the first time window, the measurement results obtained from at least N measurements satisfy the first measurement event; the measurement results obtained from N consecutive measurements all satisfy the first measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the first measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the first measurement event. And / or, the second judgment condition includes one or more of the following: within the second time window, the measurement result obtained from each measurement satisfies the second measurement event; within the second time window, the average of the measurement results obtained from all measurements satisfies the second measurement event; within the second time window, at least N measurement results obtained from measurements satisfy the second measurement event; the measurement results obtained from N consecutive measurements all satisfy the second measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the second measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the second measurement event.

[0037] In an optional embodiment of the third aspect, the first configuration information includes one or more of the following: a first time window, a second time window, N, M, and a measurement interval between adjacent measurements. The network device may configure the first time window, the second time window, N, M, and the measurement interval between adjacent measurements through the first configuration information.

[0038] In an optional embodiment of the third aspect, the result processing configuration information also includes one or more of the following: cell identifier, number of measurement beams, measurement objects related to CSI and / or SSB, measurement type, and L1 measurement interval.

[0039] In an optional embodiment of the third aspect, the measurement type includes one or more of the following: RSRP, RSRQ, and SINR.

[0040] In an optional embodiment of the third aspect, the system further includes: an acquisition module, configured to acquire second information, where the second information is used to request early UL / DL synchronization of the candidate PScell. The indication module is further configured to indicate third information, where the third information is used to indicate PSS, SSS, and PBCH information corresponding to the candidate PScell, where the PSS, SSS, and PBCH information are used for DL ​​synchronization, or the third information is used to indicate TA timing information corresponding to the candidate PScell, where the TA timing information is used for UL synchronization.

[0041] In an optional embodiment of the third aspect, when the third information is used to indicate the TA timing information corresponding to the candidate PScell, the second information is used to initiate PRACH access of the candidate PScell; or, when the third information is used to indicate the PSS, SSS and PBCH information corresponding to the candidate PScell, the second information is used to request reading the SSB of the candidate PScell.

[0042] It should be understood that the technical solution of the third aspect of the present application corresponds to the technical solution of the first aspect of the present application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation methods are similar and will not be repeated.

[0043] In the fourth aspect, an embodiment of the present application proposes a terminal device, including: an acquisition module for acquiring first information, the first information is used to indicate first configuration information corresponding to a candidate PScell, the first configuration information including: second configuration information for L1 measurement and / or third configuration information for early UL / DL synchronization; a processing module for conditionally adding or changing a PScell ​​for the candidate PScell ​​according to the first configuration information.

[0044] In an optional embodiment of the fourth aspect, the second configuration information includes: resource configuration information for L1 measurement and / or result processing configuration information for L1 measurement results, and the resource configuration information includes time-frequency resource information of measurement objects related to CSI and / or SSB.

[0045] In an optional embodiment of the fourth aspect, the result processing configuration information includes: a first decision condition and a first measurement event for judging the first decision condition, wherein the first decision condition is used to indicate the reporting of the measurement results of the L1 measurement and / or trigger the addition or change of the candidate PScell; and / or, a second decision condition and a second measurement event for judging the second decision condition, wherein the second decision condition is used to indicate early UL / DL synchronization.

[0046] In an optional embodiment of the fourth aspect, the first measurement event includes one or more of the following: a measurement result of the candidate PScell ​​is greater than a first absolute value; a difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell, and / or a difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than a first threshold value, and the measurement result of the candidate PScell ​​is greater than a second threshold value. And / or, the second measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than a second absolute value; the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source Pcell, and / or the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than a third threshold value, and the measurement result of the candidate PScell ​​is greater than a fourth threshold value.

[0047] In an optional embodiment of the fourth aspect, the first judgment condition includes one or more of the following: within the first time window, the measurement result obtained from each measurement satisfies the first measurement event; within the first time window, the average of the measurement results obtained from all measurements satisfies the first measurement event; within the first time window, the measurement results obtained from at least N measurements satisfy the first measurement event; the measurement results obtained from N consecutive measurements all satisfy the first measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the first measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the first measurement event. And / or, the second judgment condition includes one or more of the following: within the second time window, the measurement result obtained from each measurement satisfies the second measurement event; within the second time window, the average of the measurement results obtained from all measurements satisfies the second measurement event; within the second time window, at least N measurement results obtained from measurements satisfy the second measurement event; the measurement results obtained from N consecutive measurements all satisfy the second measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the second measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the second measurement event.

[0048] In an optional embodiment of the fourth aspect, the first configuration information includes one or more of the following: a first time window, a second time window, N, M, and a measurement interval between adjacent measurements. The network device may configure the first time window, the second time window, N, M, and the measurement interval between adjacent measurements through the first configuration information.

[0049] In an optional embodiment of the fourth aspect, the result processing configuration information also includes one or more of the following: cell identifier, number of measurement beams, measurement objects related to CSI / SSB, measurement type, and L1 measurement interval.

[0050] In an optional embodiment of the fourth aspect, the measurement type includes one or more of the following: RSRP, RSRQ, and SINR.

[0051] In an optional embodiment of the fourth aspect, the processing module is specifically configured to: if the measurement result of the candidate PScell ​​meets the first decision condition, add or change it to the candidate PScell.

[0052] In an optional embodiment of the fourth aspect, the processing module is specifically used to: if the measurement result of the candidate PScell ​​meets the first judgment condition, send fourth information, the fourth information is used to report the measurement result of the candidate PScell; obtain fifth information, the fifth information is used to indicate adding or changing to the candidate PScell; add or change to the candidate PScell.

[0053] In an optional embodiment of the fourth aspect, the processing module is specifically configured to: randomly access the candidate PScell ​​if the measurement result of the candidate PScell ​​meets the first decision condition.

[0054] In an optional embodiment of the fourth aspect, the processing module is specifically used to: if the measurement result of the candidate PScell ​​meets the second judgment condition, then according to the third configuration information, the candidate PScell ​​is UL / DL synchronized in advance to obtain synchronization information; if it is determined to add or change the candidate PScell, then based on the synchronization information, the candidate PScell ​​is added or changed.

[0055] In an optional embodiment of the fourth aspect, second information is sent, and the second information is used to request UL / DL synchronization of the candidate PScell ​​in advance; third information is obtained, and the third information is used to indicate the PSS, SSS and PBCH information corresponding to the candidate PScell, and the PSS, SSS and PBCH information are used for DL ​​synchronization, or the third information is used to indicate the TA timing information corresponding to the candidate PScell, and the TA timing information is used for UL synchronization.

[0056] In an optional embodiment of the fourth aspect, when the third information is used to indicate TA timing information, the second information is used to initiate PRACH access of the candidate PScell, or, when the third information is used to indicate PSS, SSS and PBCH information, the second information is used to request reading of the SSB of the candidate PScell.

[0057] In an optional embodiment of the fourth aspect, the first configuration information also includes PUCCH configuration information indicating no PRACH access corresponding to the candidate PScell, and the processing module is specifically used to: determine the validity of the TA timing information; if the TA timing information is valid, communicate with the candidate SN where the candidate PScell ​​is located according to the PUCCH configuration information, otherwise initiate PRACH access to the candidate SN.

[0058] It should be understood that the technical solution of the fourth aspect of the present application corresponds to the technical solution of the second aspect of the present application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation methods are similar and will not be repeated.

[0059] In a fifth aspect, an embodiment of the present application provides an electronic device, comprising a processor and a memory, the memory being used to store computer-executable instructions, the processor executing the computer-executable instructions stored in the memory, so that the electronic device performs the method described in the first aspect or any possible implementation of the first aspect, or the electronic device performs the method described in the second aspect or any possible implementation of the second aspect.

[0060] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed by a processor, the method described in the first aspect or any possible implementation of the first aspect is implemented; alternatively, when the computer program or instruction is executed by a processor, the method described in the second aspect or any possible implementation of the second aspect is implemented.

[0061] In a seventh aspect, the present application provides a chip or chip system, which includes at least one processor and a communication interface, the communication interface and the at least one processor being interconnected by a line, and the at least one processor being used to run a computer program or instruction to execute the method described in the first aspect or any possible implementation of the first aspect, or to execute the method described in the second aspect or any possible implementation of the second aspect. The communication interface in the chip can be an input / output interface, a pin, or a circuit, etc.

[0062] In one possible implementation, the chip or chip system described above in this application further includes at least one memory, in which instructions are stored. The memory may be a storage unit within the chip, such as a register, a cache, etc., or a storage unit of the chip (e.g., a read-only memory, a random access memory, etc.).

[0063] In an eighth aspect, an embodiment of the present application provides a computer program product, comprising a computer program, which, when run, enables a computer to execute the method described in the first aspect or any possible implementation of the first aspect, or enables a computer to execute the method described in the second aspect or any possible implementation of the second aspect.

[0064] It should be understood that the fifth to eighth aspects of the present application correspond to the technical solutions of the first to second aspects of the present application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation methods are similar and will not be repeated here.

[0065] An embodiment of the present application provides a primary and secondary cell adjustment method, device and storage medium, wherein a network device configures first configuration information corresponding to a candidate PScell ​​to a terminal device, wherein the first configuration information includes second configuration information for L1 measurement and / or third configuration information for UL / DL synchronization; the terminal device can, based on the first configuration information, conditionally add or change a PScell ​​for the candidate PScell, so as to improve the efficiency of PScell ​​addition or update through more efficient L1 measurement and / or through early UL / DL synchronization. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] FIG1 is an example diagram of a cell switching process;

[0067] Figure 2 is an example diagram of a dual-connection scenario;

[0068] FIG3 is a flowchart illustrating an example of a process in which a MN triggers a CPA;

[0069] FIG4 is a flowchart illustrating an example of a process in which an SN triggers a CPC;

[0070] FIG5 is a diagram of a communication system architecture provided in an embodiment of the present application;

[0071] FIG6 is a schematic diagram of a method for adjusting primary and secondary cells according to an embodiment of the present application;

[0072] FIG7 is a schematic diagram of a method for adjusting primary and secondary cells provided in another embodiment of the present application;

[0073] FIG8 is a schematic diagram of a method for adjusting primary and secondary cells provided in another embodiment of the present application;

[0074] FIG9 is a schematic diagram of a method for adjusting primary and secondary cells provided in another embodiment of the present application;

[0075] FIG10 is a schematic diagram of a method for adjusting primary and secondary cells provided in another embodiment of the present application;

[0076] FIG11 is a schematic diagram of a network device provided in an embodiment of the present application;

[0077] FIG12 is a schematic diagram of a terminal device provided in an embodiment of the present application;

[0078] FIG13 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0079] To facilitate a clear description of the technical solutions of the embodiments of the present application, some of the terms and technologies involved in the embodiments of the present application are briefly introduced below:

[0080] Cell handover: The terminal device completes the migration of the wireless link connection from the source cell to the target cell.

[0081] Among them, for terminal devices in the radio resource control (RRC) connection state (RRC_Connected), cell switching will be triggered if the radio link quality of the current serving cell is poor, there is a neighboring cell with better radio link quality, or load balancing between cells is required.

[0082] The cell handover process may include three stages: handover preparation, handover execution and handover completion.

[0083] Figure 1 illustrates an example of a cell handover process. As shown in Figure 1, prior to a handover, user data related to the terminal device can be transmitted between the terminal device, the source cell, and the user plane function (UPF). The access and mobility management function (AMF) can provide mobility control information (such as access control for the terminal device) to the source cell. The cell handover process may include steps S101 to S113, where the handover preparation phase includes steps S101 to S105, the handover execution phase includes steps S106 to S109, and the handover completion phase includes steps S110 to S113.

[0084] First, in S101, the source cell may send measurement control information to the terminal device. The measurement control information may include configuration information related to the measurement, such as a list of neighboring cells to be measured, and may also include reporting requirements for measurement reports. The terminal device may report the measurement report to the source cell based on the indication of the measurement control information. In S102, the source cell makes a cell handover decision based on the measurement report reported by the terminal device and decides to perform cell handover. In S103, the source cell sends a cell handover request to the target cell. In S104, the target cell may perform access control to determine whether to allow the terminal device to switch access. In S105, if the target cell allows the terminal device to switch access, the target cell may send a handover request confirmation message to the source cell. In this way, the handover preparation phase for the terminal device to perform cell handover is completed.

[0085] After the cell handover is ready, in S106, the source cell and the terminal device can initiate radio access network (RAN) handover. In S107, the terminal device can leave the source cell and synchronize with the target cell. In S108, the source cell can transfer some data to the target cell. For example, the source cell can transmit the uplink / downlink sequence number of the terminal device's packet data convergence protocol (PDCP) in the source cell to the target cell by sending an SN status transfer message to the target cell. For another example, when the source cell receives user data sent by the UPF, it transfers the user data to the target cell, and the target cell caches the user data. In S109, the terminal completes the RAN handover from the source cell to the target cell. This completes the handover execution phase of the terminal device's cell handover.

[0086] During the handover completion phase: since the terminal device has been handed over to the target cell, user data related to the terminal device can be transmitted between the terminal device, the target cell and the UPF. In S110, the target cell can send a path switch request message to the AMF to request the core network to switch the user plane path. In S111, the AMF and UPF in the core network perform path switching. In S112, after the path switch is completed, the AMF sends a path switch confirmation message to the target cell. In S113, the target cell sends a terminal context release message to the source cell, after which the source cell can release the context information of the terminal device. In this way, the cell handover is completed.

[0087] Dual connectivity (DC): A terminal device maintains simultaneous connections with two access network devices or two wireless standards. The primary access network device is the master node (MN), and the secondary access network device is the secondary node (SN). The multiple cells corresponding to the MN are the master cell group (MCG), and the multiple cells corresponding to the SN are the secondary cell group (SCG).

[0088] Figure 2 is an example diagram of a dual-connection scenario. As shown in Figure 2, in the DC scenario, the multiple cells in the MCG include a primary cell (PCell) and multiple secondary cells (Scells); the multiple cells in the SCG include a primary secondary cell (PScell) and multiple Scells. In the DC scenario, cell switching includes switching of the PCell and changing of the PScell ​​(i.e., switching of the PScell). In addition, cell changes also involve the addition of PScells. The embodiments of the present application mainly solve the problem of adding or changing PScells.

[0089] Conditional PScell ​​addition / change (CPAC): In DC scenarios, PScell ​​addition or change is caused by changes in service conditions, channel quality, etc.

[0090] CPCA can be triggered by either the MN or the SN.

[0091] Taking MN triggering CPCA as an example, the access network device where the MN is located can initiate a CPCA request and related configuration information request to the access network device where the SN is located, and the access network device where the SN is located performs corresponding configuration; the MN configures multiple candidate PScells and trigger conditions corresponding to the PScells to the terminal device (the trigger conditions are used to trigger the addition or change of the PScell); the terminal device evaluates the trigger conditions, and when it is evaluated that at least one PScell ​​meets the trigger conditions, it will initiate a random access channel (RACH) to the PScell ​​determined to be added or changed to complete CPAC.

[0092] FIG3 is an example diagram of the process of adding a PScell ​​(conditional pscell addition, CPA) triggered by an MN. As shown in FIG3 , the process of MN triggering CPA may include: S301, MN sends an SN addition request to a candidate SN, such as a secondary gNodeB (SgNB) addition request (SgNB addition request), the candidate SN may be multiple, and the MN may send the request to each candidate SN; S302, the candidate SN sends an SN addition request confirmation message to the MN, such as an SgNB addition request acknowledgement message; S303, MN sends an RRC connection reconfiguration message to the terminal device, which may include the RRC connection reconfiguration of the MN and the RRC connection reconfiguration of the SN; S304, the terminal device feeds back to the MN that the RRC connection reconfiguration is complete; the reconfiguration may include the trigger condition corresponding to the candidate PScell, and the terminal device may evaluate the trigger condition and determine the PScell ​​to be added; S305a, MN sends an SN reconfiguration completion message to the SN corresponding to the PScell ​​to be added, such as an SgNB reconfiguration completion message. S305b, MN can send an SN connection release request to the SN corresponding to the PScell ​​that does not need to be added; S305c, the SN corresponding to the PScell ​​that does not need to be added can feedback an SN connection release request confirmation message to the MN; S306, the terminal device can perform a random access process with the SN corresponding to the PScell ​​confirmed to be added.

[0093] Taking SN-triggered CPCA as an example, when a signaling radio bearer (SRB) (such as SRB3) is established between the SN and the terminal device, the SN can pre-configure the terminal device through the SRB, including the trigger conditions corresponding to the pre-configured candidate PScell ​​and the configuration information for accessing the PScell. When the trigger conditions are met, the terminal device can access the corresponding PScell ​​according to the pre-configured relevant information without the participation of the MN.

[0094] Figure 4 illustrates an example flow chart of a conditional PScell ​​change (CPC) triggered by an SN. As shown in Figure 4, the SN-triggered CPC process may include: S401: the SN sends a new radio (NR) RRC connection reconfiguration message to a terminal device. This message may indicate CPC-related configuration information, such as the triggering conditions corresponding to a candidate PScell; S402: the terminal device returns an RRC connection reconfiguration complete message to the SN; and S403: if the PScell ​​triggering conditions are met, the terminal device may perform a random access procedure with the SN corresponding to the PScell ​​to be changed.

[0095] Among related methods, CPCA based on Layer 3 (L3) measurement and signaling processes is supported. The L3 measurement process is more complex and requires longer measurement and filtering time, resulting in lower CPCA efficiency. When the UE is in a fast-fading channel, such as a high-speed channel, cell handover may be delayed, resulting in adverse effects such as wireless link disconnection, data transmission interruption, and severe rate degradation.

[0096] Based on the above problems, an embodiment of the present application proposes a method for adjusting primary and secondary cells, and its main inventive ideas are as follows: supporting PScell ​​addition or change triggered by layer 1 measurement, and improving the efficiency of PScell ​​addition or change by improving measurement efficiency; and / or supporting early uplink (uplink, UL) / downlink (downlink, DL) synchronization, so that the terminal device can quickly access the PScell ​​as the target cell, thereby improving the efficiency of PScell ​​addition or change.

[0097] It should be noted that in the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. For example, the first information and the second information are merely used to distinguish different information and do not limit their order. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity or execution order, and words such as "first" and "second" do not necessarily mean that they are different.

[0098] It should be noted that in the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0099] It should be noted that, in the embodiments of the present application, "at least one" refers to one or more, and "more" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, a--c, bc, or abc, where a, b, c can be single or multiple.

[0100] In order to better understand the primary and secondary cell adjustment method provided in the embodiment of the present application, the communication system architecture of the embodiment of the present application is described below with reference to FIG5 .

[0101] For example, Figure 5 is a diagram of the communication system architecture provided in an embodiment of the present application. As shown in Figure 5, the communication system includes a terminal device 501, a first network device 502, and a second network device 503. The first network device 502 may be an MN, and the second network device 503 may be an SN. The terminal device 501 may be connected to the first network device 502 and the second network device 503, respectively, i.e., dual-connected with the first network device 502 and the second network device 503. In a DC scenario, the source cell of the terminal device 502 may include a source Pcell and a source PScell, which are not shown in the figure.

[0102] The terminal device involved in the embodiments of the present application can also be referred to as a terminal, which can be a device with wireless transceiver function, which can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on the water surface (such as a ship, etc.); it can also be deployed in the air (for example, on an airplane, a balloon, and a satellite, etc.). The terminal device can be a user equipment (UE), wherein the UE includes a handheld device, a vehicle-mounted device, a wearable device, or a computing device with wireless communication function. Exemplarily, the UE can be a mobile phone, a tablet computer, or a computer with wireless transceiver function. The terminal device can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a mixed reality (MR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like. In an embodiment of the present application, the device for realizing the function of the terminal device may be the terminal device; or it may be a device that can support the terminal device to realize the function, such as a chip system, which may be installed in the terminal device.

[0103] The network devices involved in the embodiments of the present application include access network devices and core network devices.

[0104] Access network (RAN) equipment is the intermediate device that connects terminal devices to core network equipment via wireless communication. It is primarily responsible for radio resource management, quality of service (QoS) management, data compression and encryption, etc. on the air interface side. Examples include NodeBs, evolved eNodeBs, gNodeBs in 5G mobile communication systems or next-generation radio (NR) communication systems, and base stations in future mobile communication systems.

[0105] Core network (CN) equipment includes user plane function (UPF) network elements, access and mobility management function (AMF) network elements, session management function (SMF) network elements, policy control function (PCF) network elements, etc. Among them, the UPF network element is mainly responsible for the transmission of user data, while the other network elements can be called control plane function network elements, which are mainly responsible for authentication, authorization, registration management, session management, mobility management, and policy control to ensure the reliable and stable transmission of user data.

[0106] In an embodiment of the present application, the device for implementing the function of the network device may be a network device, or a device that can support the network device to implement the function, such as a chip system, which may be installed in the network device.

[0107] The technical solutions provided in the embodiments of the present application can be applied to the long term evolution (LTE) architecture, and can also be applied to the universal mobile telecommunications system (UMTS) terrestrial radio access network (UTRAN) architecture, or the global system for mobile communication (GSM) / enhanced data rate for GSM evolution (EDGE) system radio access network (GSM EDGE radio access network, GERAN) architecture. In addition, the technical solutions provided in the embodiments of the present application can also be applied to any other wireless communication system with similar structure and function, such as a public land mobile network (PLMN) system, a 5G communication system or a communication system after 5G, etc., and the embodiments of the present application do not impose any restrictions on this.

[0108] Wireless communication between communication devices may include: wireless communication between network devices and terminal devices, wireless communication between network devices and network devices, and wireless communication between terminal devices. In the embodiments of the present application, the term "wireless communication" may also be referred to as "communication", and the term "communication" may also be described as "data transmission", "information transmission" or "transmission". Those skilled in the art may apply the technical solutions provided in the embodiments of the present application to wireless communication between network devices and terminal devices, such as wireless communication between access network devices and terminal devices.

[0109] The technical solutions shown in this application are described in detail below through specific embodiments. It should be noted that the following embodiments can exist independently or in combination with each other. For the same or similar content, such as the explanation of terms or nouns, and the explanation of steps, etc., different embodiments can refer to each other and will not be repeated.

[0110] FIG6 is a schematic diagram of a method for adjusting primary and secondary cells according to an embodiment of the present application. As shown in FIG6 , the method for adjusting primary and secondary cells according to this embodiment includes:

[0111] S601: A network device indicates first information, where the first information is used to indicate first configuration information corresponding to a candidate PScell. The first configuration information includes second configuration information for L1 measurement and / or third configuration information for early UL / DL synchronization.

[0112] Among them, the network device may be an access network device corresponding to the source cell where the terminal device is located.

[0113] Optionally, the network device is the access network device corresponding to the source PCell where the terminal device is located, that is, the MN corresponding to the source PCell, or the network device is the access network device corresponding to the source PScell ​​where the terminal device is located, that is, the SN corresponding to the source PScell. When the network device is the MN corresponding to the source PCell, the addition or change of the conditional PScell ​​is initiated by the MN; when the network device is the SN corresponding to the source PScell, the addition or change of the conditional PScell ​​is initiated by the SN.

[0114] The first configuration information is used for adding or changing a conditional PScell, that is, for CPCA.

[0115] A candidate PScell ​​is a PScell ​​that can be added or changed by a terminal device. The number of candidate PScells can be one or more. When the number of candidate PScells is one, the first information is used to indicate the first configuration information corresponding to the candidate PScell. When the number of candidate PScells is multiple, the first information is used to indicate the first configuration information corresponding to multiple candidate PScells. The first configuration information corresponding to a candidate PScell ​​is used to add or change the candidate PScell.

[0116] Among them, in the first configuration information, the second configuration information is related to the use of L1 measurement in the addition or change of candidate PScell, such as which resources are used for L1 measurement and which results obtained from L1 measurement are used to trigger the addition or change of candidate PScell; the third configuration information is related to the UL / DL synchronization operation between the terminal device and the candidate PScell.

[0117] In this embodiment, the network device sends first information to the terminal device to indicate the first configuration information corresponding to the candidate PScell ​​to the terminal device, and preconfigures the first configuration information to the terminal device, including preconfiguring the first configuration information to include the second configuration information and / or the third configuration information to the terminal device.

[0118] S602: The terminal device adds or changes a conditional PScell ​​for the candidate PScell ​​according to the first configuration information.

[0119] In this embodiment, the terminal device may perform L1 measurement on the source cell and / or candidate PScell ​​based on the second configuration information for L1 measurement, and conditionally add or change the candidate PScell ​​based on the measurement condition and the configured threshold of the L1 measurement. By measuring the more efficient L1 measurement, the efficiency of adding or changing the PScell ​​is improved; and / or, before conditionally adding or changing the candidate PScell, the terminal device may perform UL / DL synchronization with the candidate PScell ​​in advance based on the third configuration information for performing UL / DL synchronization in advance, so that the terminal device can quickly access the PScell ​​after determining to add or change to the PScell, thereby improving the efficiency of adding or changing the PScell. DL synchronization may be performed before measuring the source cell and / or candidate PScell ​​(such as L1 measurement), and UL synchronization may be performed before or after measuring the source cell and / or candidate PScell.

[0120] In one embodiment, the first configuration information includes second configuration information for L1 measurement. The terminal device may perform L1 measurement on the source cell and / or candidate PScell ​​based on the second configuration information to obtain L1 measurement results. Based on the L1 measurement results, the terminal device may conditionally add or change the candidate PScell. For example, if the L1 measurement results indicate that the candidate PScell ​​meets a corresponding trigger condition, the terminal device may add or change the candidate PScell.

[0121] In another embodiment, when the first configuration information includes third configuration information for performing UL / DL synchronization in advance, the terminal device can perform UL / DL synchronization with the candidate PScell ​​in advance based on the third configuration information. When the candidate PScell ​​meets the corresponding trigger conditions, the terminal device can be added or changed to the candidate PScell. Since the terminal device performs UL / DL synchronization with the candidate PScell ​​in advance, the terminal device can directly establish a connection with the candidate PScell ​​when adding or changing to the candidate PScell, thereby improving the efficiency of adding or changing the PScell.

[0122] In another embodiment, when the first configuration information includes second configuration information for L1 measurement and third configuration information for early UL / DL synchronization, the terminal device may perform L1 measurement on the source cell and / or candidate PScell ​​based on the second configuration information to obtain the L1 measurement result, and may perform early UL / DL synchronization with the candidate PScell ​​based on the third configuration information. When it is determined based on the L1 measurement result that the candidate PScell ​​meets the corresponding trigger condition, the terminal device may be added to or changed to the candidate PScell. Since the terminal device performs UL / DL synchronization with the candidate PScell ​​in advance, the terminal device can directly establish a connection with the candidate PScell ​​when adding or changing to the candidate PScell. Thus, the efficiency of adding or changing PScells is improved through L1 measurement and early UL / DL synchronization.

[0123] In an embodiment of the present application, first configuration information corresponding to a candidate PScell ​​is pre-configured to a terminal device through a network device, and the first configuration information includes second configuration information for L1 measurement and / or third configuration information for performing UL / DL synchronization in advance, so that the terminal device can improve measurement efficiency through L1 measurement during the addition or change of the PScell, and / or improve the efficiency of the terminal device accessing the candidate PScell ​​by performing UL / DL synchronization with the candidate PScell ​​in advance, thereby improving the efficiency of adding or changing the PScell ​​and reducing the probability of untimely PScell ​​switching when the UE is in a high-speed or fast-fading channel.

[0124] Optionally, in addition to the second and third configuration information, the first configuration information may further include fourth configuration information for data transmission and RRC control on the candidate PScell. After being added to or changed to a candidate PScell, the terminal device may transmit data and control signaling with the candidate PScell ​​based on the fourth configuration information.

[0125] Below, optional solutions for the second configuration information are provided.

[0126] Optionally, the second configuration information may include: resource configuration information for L1 measurement and / or result processing configuration information for processing L1 measurement results. The network device pre-configures the resource configuration information for L1 measurement and / or result processing configuration information for processing L1 measurement results to the terminal device by indicating the first information, so that the terminal device can perform L1 measurement according to the resource configuration information and / or process L1 measurement results according to the result processing configuration information when adding or changing a conditional PScell ​​for a candidate PScell.

[0127] In the second configuration information, the optional schemes for resource configuration information are as follows:

[0128] Optionally, the resource configuration information for L1 measurement may include: time-frequency resource information of measurement objects related to channel state information (CSI) and / or synchronization signaling block (SSB). Both CSI and SSB can reflect cell service quality. By configuring the time-frequency resource information of measurement objects related to CSI and / or SSB, the obtained L1 measurement results may include measurement results of measurement objects related to CSI and / or SSB, so that the L1 measurement results can reflect cell service quality and improve the accuracy of PScell ​​addition or modification.

[0129] In this optional method, the network device pre-configures the time-frequency resource information of the measurement object related to CSI to the terminal device by indicating the first information, and / or pre-configures the time-frequency resource information of the measurement object related to SSB to the terminal device; when the terminal device adds or changes the conditional PScell ​​for the candidate PScell, the terminal device may perform L1 measurement of the measurement object related to CSI on the source cell and / or the candidate PSCcell according to the time-frequency resource information of the measurement object related to CSI, and / or may perform L1 measurement of the measurement object related to CSI on the source cell and / or the candidate PSCcell according to the time-frequency resource information of the measurement object related to SSB.

[0130] Exemplarily, CSI-related measurement objects may include CSI-reference signals (RSs). The terminal device performs L1 measurement of the CSI-RS of a source cell to obtain a measurement result of the CSI-RS of the source cell, which may reflect the service quality of the source cell. The terminal device also performs L1 measurement of the CSI-RS of a candidate cell to obtain a measurement result of the CSI-RS of the candidate cell, which may reflect the service quality of the candidate cell.

[0131] Exemplarily, the measurement object related to SSB may include SSB.

[0132] Exemplarily, the time-frequency resource information of the measurement object related to CSI and / or SSB may include the resource location of the measurement object, such as the resource location of CSI-RS, the resource location of SSB, and the resource location such as the time domain location and frequency domain location of the resource.

[0133] In the second configuration information, the optional schemes for the result processing configuration information are as follows:

[0134] Optionally, the result processing configuration information for L1 measurement result processing may include: a first decision condition and a first measurement event for judging the first decision condition, wherein the first decision condition is used to trigger the measurement result reporting of the L1 measurement and / or the addition or change of the candidate PScell; and / or, a second decision condition and a second measurement event for judging the second decision condition, wherein the second decision condition is used to trigger early UL / DL synchronization.

[0135] As can be seen, during the conditional addition or change of a PScell, the measurement results obtained by L1 measurement can be used to trigger one or more of the following operations: reporting of L1 measurement results, adding or changing candidate PScells, and early UL / DL synchronization. Whether to trigger and which operation to trigger are determined based on the decision conditions and measurement events in the result processing configuration information. By configuring appropriate decision conditions and measurement events, the accuracy and rationality of triggering one or more of the operations, including reporting of L1 measurement results, adding or changing candidate PScells, and early UL / DL synchronization, can be improved.

[0136] The first measurement event and the second measurement event are L1 measurement events. When the L1 measurement result meets the event definition of the first measurement event, it means that the L1 measurement result meets the first measurement event. When the L1 measurement result meets the event requirement of the second measurement event, it means that the L1 measurement result meets the second measurement event.

[0137] The first measurement event and the second measurement event may be the same event or different events.

[0138] Among them, the first decision condition is a decision condition described in combination with the first measurement event and the L1 measurement result. For example, the first decision condition is that all L1 measurement results meet the first measurement event and some L1 measurement results meet the first measurement event; the second decision condition is a decision condition described in combination with the second measurement event and the L1 measurement result.

[0139] Optionally, since the first decision condition and the second decision condition are used to trigger different operations, the first decision condition and the second decision condition are different decision conditions, and appropriate decision conditions can be configured for different operations. The difference between the first decision condition and the second decision condition may include: a condition definition of the first decision condition and a condition definition of the second decision condition are different, and / or the first measurement event and the second measurement event are different.

[0140] The L1 measurement results may include the measurement results of the candidate PScell ​​and may also include the measurement results of the source cell. The source cell measurement results include the measurement results of the source Pcell and / or the measurement results of the source PScell. For example, the measurement results of the CSI-RS of the source Pcell, the measurement results of the CSI-RS of the source PScell, and the measurement results of the CSI-RS of the candidate PScell.

[0141] In this optional approach, after performing L1 measurement, the terminal device may obtain an L1 measurement result. Based on the L1 measurement result, the first decision condition, and the first measurement event, the terminal device may determine whether the measurement result of the candidate PScell ​​meets the first decision condition. If so, this may trigger reporting of the L1 measurement result and / or the addition or modification of the candidate PScell. Furthermore, / or, based on the L1 measurement result, the second decision condition, and the second measurement event, the terminal device may determine whether the measurement result of the candidate PScell ​​meets the second decision condition. If so, this may trigger early UL / DL synchronization.

[0142] Regarding the first measurement event and the second measurement event, the following options are provided:

[0143] Optionally, the first measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than a first absolute value; the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell, and / or the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than the first threshold value, and the measurement result of the candidate PScell ​​is greater than the second threshold value.

[0144] Among them, the first absolute value, the first threshold, the first threshold value, and the second threshold value are configured thresholds.

[0145] The second threshold value may be greater than the first threshold value.

[0146] In this optional method, the measurement result of the candidate PScell ​​is greater than the first absolute value, indicating that the service quality of the candidate PScell ​​is better; the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source Pcell, and / or the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell, indicating that the service quality of the candidate PScell ​​is better than the service quality of the source Pcell and / or the service quality of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than the first threshold value, and the measurement result of the candidate PScell ​​is greater than the second threshold value, indicating that the service quality of the source Pcell and / or the source PScell ​​is poor and the service quality of the candidate PScell ​​is better.

[0147] In this optional manner, the terminal device may perform L1 measurement on the candidate PScell ​​based on the resource configuration information for L1 measurement to obtain a measurement result of the candidate PScell, or may perform measurement on the candidate PScell, the source Pcell, and the source PScell ​​to obtain a measurement result of the candidate PScell, a measurement result of the source Pcell, and a measurement result of the source PScell. The terminal device may determine whether the measurement result of the candidate PScell ​​satisfies the first measurement event; and / or may determine whether the measurement result of the candidate PScell, the measurement result of the source Pcell, and the measurement result of the candidate PScell ​​satisfy the first measurement event.

[0148] Optionally, the second measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than the second absolute value; the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source PScell, and / or the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than the third threshold value, and the measurement result of the candidate PScell ​​is greater than the fourth threshold value.

[0149] The first absolute value, the first threshold, the first threshold value, and the second threshold value are configured threshold values. Since the first measurement event and the second measurement event can be the same or different events, the first absolute value and the second absolute value can be the same or different absolute values, the first threshold value and the second threshold value can be the same or different threshold values, the first threshold value and the third threshold value can be the same or different threshold values, and the second threshold value and the fourth threshold value can be the same or different threshold values.

[0150] The fourth threshold value may be greater than the third threshold value.

[0151] In this optional method, the measurement result of the candidate PScell ​​is greater than the second absolute value, indicating that the service quality of the candidate PScell ​​is better; the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source Pcell, and / or the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source PScell, indicating that the service quality of the candidate PScell ​​is better than the service quality of the source Pcell and / or the service quality of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than the third threshold value, and the measurement result of the candidate PScell ​​is greater than the fourth threshold value, indicating that the service quality of the source Pcell and / or the source PScell ​​is poor and the service quality of the candidate PScell ​​is better.

[0152] In this optional manner, the terminal device may perform L1 measurement on the candidate PScell ​​based on the resource configuration information for L1 measurement to obtain a measurement result of the candidate PScell, or may perform measurement on the candidate PScell, the source Pcell, and the source PScell ​​to obtain a measurement result of the candidate PScell, a measurement result of the source Pcell, and a measurement result of the source PScell. The terminal device may determine whether the measurement result of the candidate PScell ​​satisfies the second measurement event; and / or may determine whether the measurement result of the candidate PScell, the measurement result of the source Pcell, and the measurement result of the candidate PScell ​​satisfy the second measurement event.

[0153] Optionally, considering that early UL / DL synchronization needs to be triggered earlier than the reporting of L1 measurement results, the addition or change of candidate PScell, the second measurement event may be easier to meet than the first measurement event, so: the second absolute value may be smaller than the first absolute value; and / or, the second threshold may be smaller than the first threshold; and / or, the third threshold may be greater than the first threshold; and / or, the fourth threshold may be smaller than the second threshold.

[0154] Regarding the first judgment condition and the second judgment event, the following options are provided:

[0155] Optionally, the first judgment condition includes one or more of the following: within the first time window, the measurement results obtained from each measurement meet the first measurement event; within the first time window, the average value of the measurement results obtained from all measurements meets the first measurement event; within the first time window, the measurement results obtained from at least N measurements meet the first measurement event; the measurement results obtained from N consecutive measurements all meet the first measurement event; among the measurement results obtained from N consecutive measurements, at least M measurement results meet the first measurement event; the average value of the measurement results obtained from N consecutive measurements meets the first measurement event.

[0156] The first time window is a configured time interval.

[0157] Wherein, N and M are configuration constants, and the values ​​of N and M can be the same or different.

[0158] As an example, the measurement results obtained in each measurement satisfying the first measurement event may include one or more of the following: in the measurement results obtained in each L1 measurement, the measurement results of the candidate PScell ​​are greater than the first absolute value; in the measurement results obtained in each L1 measurement, the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source Pcell, and / or the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell; in the measurement results obtained in each L1 measurement, the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than the first threshold value, and the measurement result of the candidate PScell ​​is greater than the second threshold value.

[0159] As an example, the average value of the measurement results obtained from all measurements may include one or more of the following: the average value of the measurement results of the candidate PScells obtained from all measurements, the average value of the measurement results of the source Pcells obtained from all measurements, and the average value of the measurement results of the source PScells obtained from all measurements. The average value of the measurement results obtained from all measurements satisfying the first measurement event may include one or more of the following: the average value of the measurement results of the candidate PScells obtained from all measurements is greater than the first absolute value; the difference between the average value of the measurement results of the candidate PScells obtained from all measurements and the first threshold is greater than the average value of the measurement results of the source Pcells obtained from all measurements, and / or the difference between the average value of the measurement results of the candidate PScells obtained from all measurements and the first threshold is greater than the average value of the measurement results of the source PScells obtained from all measurements; the average value of the measurement results of the source Pcells obtained from all measurements and / or the average value of the measurement results of the source PScells obtained from all measurements is less than the first threshold value, and the average value of the measurement results of the candidate PScells obtained from all measurements is greater than the second threshold value.

[0160] As an example, the measurement results obtained from at least N measurements may include one or more of the following: measurement results of the candidate PScell ​​obtained from at least N measurements, measurement results of the source PScell ​​obtained from at least N measurements, and measurement results of the source PScell ​​obtained from at least N measurements. The measurement results obtained from at least N measurements satisfying the first measurement event may include one or more of the following: in at least N measurements, the measurement results of the candidate PScell ​​are all greater than a first absolute value; in at least N measurements, the difference between the measurement result of the candidate PScell ​​and a first threshold is greater than the measurement result of the source PScell, and / or the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell; in at least N measurements, the measurement result of the source Pcell and / or the measurement result of the source PScell ​​are less than a first threshold value, and the measurement result of the candidate PScell ​​is greater than a second threshold value.

[0161] The measurement results obtained from N consecutive measurements can be described with reference to the example of measurement results obtained from at least N measurements. The description of the measurement results obtained from N consecutive measurements all satisfying the first measurement event can be described with reference to the example of measurement results obtained from at least N measurements all satisfying the first measurement event, which is not further described. The description of the measurement results obtained from N consecutive measurements where at least M of them satisfy the first measurement event and the average of the measurement results obtained from N consecutive measurements satisfy the first measurement event can be described with reference to a combination of the aforementioned examples, which are not described one by one.

[0162] In this optional method, the terminal device can determine whether the L1 measurement result satisfies the first measurement event in accordance with the first judgment condition. If so, it means that the measurement result of the candidate PScell ​​satisfies the first judgment condition, which can trigger the terminal device to report the L1 measurement result and / or add or change the candidate PScell.

[0163] Optionally, the second judgment condition includes one or more of the following: within the second time window, the measurement results obtained from each measurement meet the second measurement event; within the second time window, the average value of the measurement results obtained from all measurements meets the second measurement event; within the second time window, the measurement results obtained from at least N measurements meet the second measurement event; the measurement results obtained from N consecutive measurements all meet the second measurement event; among the measurement results obtained from N consecutive measurements, at least M measurement results meet the second measurement event; the average value of the measurement results obtained from N consecutive measurements meets the second measurement event.

[0164] The second time window is a configured time interval. The first time window and the second time window may be the same or different.

[0165] Wherein, N and M are configuration constants, and the values ​​of N and M can be the same or different.

[0166] Among them, the second judgment condition can refer to the first judgment condition, and the second judgment condition will not be described one by one with examples.

[0167] In this optional method, the terminal device can determine whether the L1 measurement result meets the second measurement event and meets the second judgment condition. If so, it means that the measurement result of the candidate PScell ​​meets the second judgment condition, which can trigger the terminal device to perform UL / DL synchronization in advance.

[0168] Optionally, the first configuration information includes one or more of the following: a first time window, a second time window, N, M, and a measurement interval between adjacent measurements. That is, the network device may configure the first time window, the second time window, N, M, and the measurement interval between adjacent measurements for the terminal device through the first configuration information.

[0169] Adjacent measurements may refer to two consecutive measurements among all measurements, at least N measurements, N consecutive measurements, or at least M measurements. For example, if the first time window is 20 milliseconds (ms) and a measurement is performed every 2 ms, then 10 measurements can be performed within the first time window, with 2 ms being the measurement interval between adjacent measurements.

[0170] In the second configuration information, the result processing configuration information also includes the following optional solutions:

[0171] Optionally, the result processing configuration information further includes one or more of the following: cell identifier, number of measurement beams, measurement objects related to CSI and / or SSB, measurement type, and L1 measurement interval. The cell identifier may be the cell identifier of a candidate PScell, such as a physical cell identifier (PCI); the number of measurement beams, such as J beams required to be measured for K candidate PScells; the measurement type, such as indicators and attributes for performing L1 measurement on the measurement object; and the L1 measurement interval refers to the time interval for the terminal device to perform L1 measurement.

[0172] The L1 measurement interval and the measurement interval between adjacent measurements may be the same or different. For example, the L1 measurement interval may be used as the measurement interval between adjacent measurements, or a measurement interval between adjacent measurements may be configured separately.

[0173] Optionally, the measurement type includes one or more of the following: reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), and signal to interference plus noise ratio (SINR). These measurement types can reflect the service quality of the cell. By performing L1 measurements on these measurement types of the measurement objects, the terminal device can select a cell with better service quality when adding or changing a PScell.

[0174] Optionally, the measurement object includes SSB and / or CSI-RS. For details about the measurement object, please refer to the above description and will not be repeated here.

[0175] FIG7 is a schematic diagram of a method for adjusting primary and secondary cells provided by another embodiment of the present application. As shown in FIG7 , the method for adjusting primary and secondary cells provided by this embodiment includes:

[0176] S701: A network device indicates first information, where the first information is used to indicate first configuration information corresponding to a candidate PScell, and the first configuration information includes second configuration information for L1 measurement.

[0177] S702: The terminal device determines whether a measurement result of the candidate PScell ​​satisfies a first decision condition based on second configuration information, where the second configuration information includes the first decision condition and a first measurement event.

[0178] The implementation principles and technical effects of S701 and S702 can be referred to the aforementioned embodiments and will not be described in detail.

[0179] S703: If the measurement result of the candidate PScell ​​meets the first decision condition, the terminal device is added to or changed to the candidate PScell, where changing to the candidate PScell ​​means switching to the candidate PScell.

[0180] In this embodiment, the terminal device can determine whether the measurement result of the candidate PScell ​​meets the first judgment condition based on the L1 measurement result, the first judgment condition, and the first measurement event. This judgment process can refer to the description of the previous embodiment. If the candidate PScell ​​meets the first judgment condition, it means that the candidate PScell ​​meets the PScell ​​addition or change condition, and the terminal device can be added to or changed to the candidate PScell. There may be multiple candidate PScells. If there are multiple candidate PScells whose corresponding measurement results meet the first judgment condition, a candidate PScell ​​to be added or switched can be determined from the multiple candidate PScells, and the terminal device can be added to or changed to this candidate PScell.

[0181] In an embodiment of the present application, when the first information includes second configuration information for L1 measurement and the second configuration information includes a first decision condition and a first measurement event, the terminal device can perform L1 measurement and, based on the measurement result of the L1 measurement and the triggering of the addition or change of the PScell, improve the efficiency of the PScell ​​addition or change.

[0182] FIG8 is a schematic diagram of a method for adjusting primary and secondary cells provided by another embodiment of the present application. As shown in FIG8 , the method for adjusting primary and secondary cells provided by this embodiment includes:

[0183] S801: A network device indicates first information, where the first information is used to indicate first configuration information corresponding to a candidate PScell, and the first configuration information includes second configuration information for L1 measurement.

[0184] S802. The terminal device determines whether the measurement result of the candidate PScell ​​meets the first judgment condition based on the second configuration information. The second configuration information includes result processing configuration information for L1 measurement result processing. The result processing configuration information includes the first judgment condition and the first measurement event. The first judgment condition is used to trigger the reporting of the L1 measurement result.

[0185] The implementation principles and technical effects of S801 and S802 can be referred to the aforementioned embodiments and will not be described in detail.

[0186] S803: If the measurement result of the candidate PScell ​​meets the first judgment condition, the terminal device sends fourth information, and the fourth information is used to report the measurement result of the candidate PScell.

[0187] In this embodiment, if the measurement result of the candidate PScell ​​meets the first decision condition, the terminal device may send fourth information to the network device to report the measurement result of the candidate PScell ​​to the network device.

[0188] S804: The network device indicates fifth information, where the fifth information is used to indicate adding or changing to a candidate PS cell.

[0189] In this embodiment, after the network device obtains the measurement results of the candidate PScell, it can decide whether to add or change the candidate PScell. If it is determined to add or change the candidate PScell, it can send fifth information to the terminal device to instruct the terminal device to add or change to the candidate PScell.

[0190] S805: The terminal device is added or changed to a candidate PScell.

[0191] In an embodiment of the present application, when the first information includes second configuration information for L1 measurement and the second configuration information includes a first decision condition and a first measurement event, the terminal device can perform L1 measurement and trigger active reporting of the L1 measurement result based on the measurement result of the L1 measurement, and add or change the PScell ​​under the instruction of the network device.

[0192] FIG9 is a schematic diagram of a method for adjusting primary and secondary cells provided by another embodiment of the present application. As shown in FIG9 , the method for adjusting primary and secondary cells provided by this embodiment includes:

[0193] S901: The network device where the source cell is located indicates first information, where the first information is used to indicate first configuration information corresponding to a candidate PScell, and the first configuration information includes second configuration information for L1 measurement.

[0194] The network device where the source cell is located may be the network device where the source Pcell is located or the SN where the source PScell ​​is located.

[0195] S902. The terminal device determines whether the measurement result of the candidate PScell ​​meets the first judgment condition based on the second configuration information. The second configuration information includes result processing configuration information for L1 measurement result processing. The result processing configuration information includes the first judgment condition and the first measurement event. The first judgment condition is used to trigger the addition or change of the candidate PScell.

[0196] The implementation principles and technical effects of S901 and S902 can be referred to the aforementioned embodiments and will not be described in detail.

[0197] S903: If the measurement result of the candidate PScell ​​meets the first decision condition, the terminal device accesses the candidate PScell.

[0198] In this embodiment, if the measurement result of the candidate PScell ​​meets the first judgment condition, the terminal device can communicate with the SN where the candidate PScell ​​is located to access the candidate PScell. For example, the terminal device can request the SN where the candidate PScell ​​is located to be added or changed to the candidate PScell. The SN where the candidate PScell ​​is located can send an RRC connection reconfiguration message to the terminal device, and the terminal device can send an RRC connection reconfiguration completion message to the SN.

[0199] In an embodiment of the present application, when the first information includes second configuration information for L1 measurement and the second configuration information includes a first decision condition and a first measurement event, the terminal device can perform L1 measurement and trigger the addition or change of the PScell ​​based on the measurement result of the L1 measurement, thereby enabling the terminal device to actively add or change to the PScell.

[0200] In the case where the first information includes third configuration information for early UL / DL synchronization, the terminal device can, after obtaining the third configuration information, perform early UL / DL synchronization with the candidate PScell ​​based on the third configuration information. The third configuration information can be existing configuration information for UL / DL synchronization, which is not limited here.

[0201] FIG10 is a schematic diagram of a method for adjusting primary and secondary cells provided by another embodiment of the present application. As shown in FIG10 , the method for adjusting primary and secondary cells provided by this embodiment includes:

[0202] S1001, the terminal device sends sixth information, and the sixth information is used to indicate a measurement report of the terminal device.

[0203] Among them, S1001 is an optional step.

[0204] In this embodiment, the terminal device reports a measurement report to the network device, such as a measurement report of a neighboring cell situation and a channel quality.

[0205] S1002, the network device where the source cell is located indicates first information, where the first information is used to indicate first configuration information corresponding to the candidate PScell, and the first configuration information includes second configuration information for L1 measurement and third configuration information for early UL / DL synchronization.

[0206] Among them, the implementation principle and technical effects of S1002 can refer to the aforementioned embodiments, and the first configuration information, second configuration information, third configuration information, and the network device where the source cell is located can also refer to the description of the aforementioned embodiments and will not be repeated here.

[0207] Optionally, the network device where the source cell is located may indicate the first information to the terminal device based on the measurement report of the terminal device, so as to configure first configuration information corresponding to a suitable candidate PScell ​​for the terminal based on the measurement report of the terminal device.

[0208] Optionally, the first information may be carried in an RRC reconfiguration message.

[0209] S1003, the terminal device sends the seventh information, and the seventh information is used to indicate that the configuration is completed.

[0210] Among them, S1003 is an optional step.

[0211] In this embodiment, after configuring the first configuration information, the terminal device may send the seventh information to the network device where the source cell is located to inform the network device where the source cell is located that the first configuration information has been configured on the terminal device side.

[0212] Optionally, the seventh information may be carried in an RRC reconfiguration complete message.

[0213] S1004: The terminal device determines whether the measurement result of the candidate PScell ​​meets the second decision condition according to the second configuration information.

[0214] In this embodiment, the second configuration information includes a second judgment condition and a second measurement event. After the terminal device performs L1 measurement, it can judge whether the measurement result of the candidate PScell ​​meets the second judgment condition based on the measurement result of the L1 measurement, the second judgment condition and the second measurement event. The specific judgment process can be referred to the previous embodiment and will not be repeated here.

[0215] S1005: If the measurement result of the candidate PScell ​​meets the second decision condition, perform UL / DL synchronization on the candidate PScell ​​in advance according to the third configuration information to obtain synchronization information.

[0216] In this embodiment, if the measurement result of the candidate PScell ​​meets the second judgment condition, early UL / DL synchronization between the terminal device and the candidate PScell ​​may be triggered. The terminal device may perform UL / DL synchronization between the terminal device and the candidate PScell ​​based on the third configuration information with the SN where the candidate PScell ​​is located to obtain synchronization information. After obtaining the synchronization information, the terminal device may save the synchronization information for use in subsequent PScell ​​addition or modification processes.

[0217] Optionally, the synchronization information may include primary synchronization signals (PSS), secondary synchronization signals (SSS) and physical boardcast signal (PBCH) information corresponding to the candidate PScell, and / or, the synchronization information may include timing advance (TA) timing information, PSS, SSS and PBCH information are used for DL ​​synchronization, and TA timing information is used for UL synchronization.

[0218] Optionally, performing UL / DL synchronization on a candidate PScell ​​in advance to obtain synchronization information may include: the terminal device sending second information, the second information being used to request early UL / DL synchronization of the candidate PScell; the SN of the candidate PScell ​​indicating third information, the third information being used to indicate PSS, SSS, and PBCH information corresponding to the candidate PScell, or the third information being used to indicate TA timing information corresponding to the candidate PScell. Thus, PSS, SSS, and PBCH information for DL ​​synchronization and / or TA timing information for UL synchronization are obtained in advance, thereby improving the efficiency of terminal device access to the candidate PScell ​​and, in turn, improving the efficiency of PScell ​​addition or modification.

[0219] In this optional method, the terminal device may send a second information to the SN where the candidate PScell ​​is located to request early UL / DL synchronization of the candidate PScell; the SN where the candidate PScell ​​is located may indicate a third information to the terminal device, and the terminal device obtains the third information, obtains the PSS, SSS and PBCH information corresponding to the candidate PScell ​​from the third information, and / or obtains the TA timing information corresponding to the candidate PScell ​​from the third information to achieve early UL / DL synchronization.

[0220] Optionally, when the third information indicates the TA timing information corresponding to the candidate PScell, the second information is used to initiate PRACH access of the candidate PScell; or, when the third information indicates the PSS, SSS, and PBCH information corresponding to the candidate PScell, the second information is used to request reading of the SSB of the candidate PScell. Thus, the terminal device can obtain the TA timing information by initiating PRACH access to the candidate PScell, and can obtain the PSS, SSS, and PBCH information corresponding to the candidate PScell ​​by requesting reading of the SSB of the candidate PScell.

[0221] S1006: If it is determined to add or change a candidate PScell, the terminal device adds or changes the candidate PScell ​​based on the synchronization information.

[0222] In this embodiment, when it is determined to add or change a candidate PScell, the terminal device can directly add or change the candidate PScell ​​based on the synchronization information without the need for UL / DL synchronization with the candidate PScell, thereby improving the efficiency of adding or changing the candidate PScell.

[0223] Optionally, the terminal device determines whether the measurement result of the candidate PScell ​​meets the first judgment condition based on the measurement result of L1 measurement, the first judgment condition in the result processing configuration information, and the first measurement event in the result processing configuration information. If the measurement result of the candidate PScell ​​meets the first judgment condition, the terminal device may be triggered to add or change the candidate PScell, that is, it is determined to add or change the candidate PScell; or, if the measurement result of the candidate PScell ​​meets the first judgment condition, the terminal device may be triggered to report the L1 measurement result. If the terminal device receives the fifth information indicating addition or change to the candidate PScell, it indicates that the candidate PScell ​​is determined to be added or changed.

[0224] Optionally, the first configuration information also includes physical uplink control channel (PUCCH) configuration information indicating a physical uplink control channel (PUCCH) without PRACH access corresponding to the candidate PScell. Based on the synchronization information, the candidate PScell ​​is added or changed, including: judging the validity of the TA timing information; if the TA timing information is valid, communicating with the candidate SN where the candidate PScell ​​is located according to the PUCCH configuration information; otherwise, initiating PRACH access to the candidate SN. Thus, when the TA timing information is valid, the terminal device can directly communicate with the candidate SN where the candidate PScell ​​is located without initiating PRACH access, thereby improving the efficiency of adding or changing to the candidate PScell.

[0225] Exemplarily, whether the TA timing information is valid may be determined by using a configured duration threshold.

[0226] In an embodiment of the present application, the network device where the source cell is located configures the first configuration information to the terminal device. When the terminal device triggers the UL / DL synchronization with the candidate PScell ​​in advance based on the first configuration information, the terminal device performs UL / DL synchronization with the candidate PScell, obtains the synchronization information and saves it; when the terminal device determines to add or change the candidate PScell, it can add or change the candidate PScell ​​based on the synchronization information, especially when the TA information is valid, direct communication without PRACH access can be performed, thereby improving the efficiency of adding or changing the PScell.

[0227] The primary and secondary cell adjustment method of the embodiment of the present application has been described above. The device for performing the above method provided in the embodiment of the present application is described below. Those skilled in the art will understand that the method and device can be combined and referenced with each other, and the relevant device provided in the embodiment of the present application can perform the steps in the above list sorting method.

[0228] FIG11 is a schematic diagram of a network device according to an embodiment of the present application. As shown in FIG11 , the network device 1100 includes an indication module 1101 .

[0229] Among them, the indication module 1101 is used to indicate the first information, the first information is used to indicate the first configuration information corresponding to the candidate PScell, the first configuration information is used to add or change the conditional PScell, and the first configuration information includes: the second configuration information for L1 measurement and / or the third configuration information for early uplink UL / downlink DL synchronization.

[0230] In an optional embodiment, the second configuration information includes: resource configuration information for L1 measurement and / or result processing configuration information for L1 measurement result processing.

[0231] In an optional embodiment, the resource configuration information includes time-frequency resource information of measurement objects related to CSI and / or SSB.

[0232] In an optional embodiment, the result processing configuration information includes: a first decision condition and a first measurement event for judging the first decision condition, wherein the first decision condition is used to trigger the reporting of the measurement results of the L1 measurement and / or the addition or change of the candidate PScell; and / or, a second decision condition and a second measurement event for judging the second decision condition, wherein the second decision condition is used to trigger early UL / DL synchronization.

[0233] In an optional embodiment, the first measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than a first absolute value; the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell, and / or the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than the first threshold value, and the measurement result of the candidate PScell ​​is greater than the second threshold value. And / or, the second measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than a second absolute value; the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source Pcell, and / or the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than the third threshold value, and the measurement result of the candidate PScell ​​is greater than a fourth threshold value.

[0234] In an optional embodiment, the first judgment condition includes one or more of the following: within the first time window, the measurement result obtained from each measurement satisfies the first measurement event; within the first time window, the average of the measurement results obtained from all measurements satisfies the first measurement event; within the first time window, the measurement results obtained from at least N measurements satisfy the first measurement event; the measurement results obtained from N consecutive measurements all satisfy the first measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the first measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the first measurement event. And / or, the second judgment condition includes one or more of the following: within the second time window, the measurement result obtained from each measurement satisfies the second measurement event; within the second time window, the average of the measurement results obtained from all measurements satisfies the second measurement event; within the second time window, at least N measurement results obtained from measurements satisfy the second measurement event; the measurement results obtained from N consecutive measurements all satisfy the second measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the second measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the second measurement event.

[0235] In an optional embodiment, the first configuration information includes one or more of the following: a first time window, a second time window, N, M, and a measurement interval between adjacent measurements.

[0236] In an optional embodiment, the result processing configuration information further includes one or more of the following: cell identifier, number of measurement beams, measurement objects related to CSI and / or SSB, measurement type, and L1 measurement interval.

[0237] In an optional embodiment, the measurement type includes one or more of the following: RSRP, RSRQ, and SINR.

[0238] In an optional embodiment, the system further includes: an acquisition module (not shown) configured to acquire second information, the second information being used to request early UL / DL synchronization of the candidate PScell. An indication module 1101 is further configured to indicate third information, the third information being used to indicate PSS, SSS, and PBCH information corresponding to the candidate PScell, the PSS, SSS, and PBCH information being used for DL ​​synchronization, or the third information being used to indicate TA timing information corresponding to the candidate PScell, the TA timing information being used for UL synchronization.

[0239] In an optional embodiment, when the third information is used to indicate the TA timing information corresponding to the candidate PScell, the second information is used to initiate PRACH access of the candidate PScell; or, when the third information is used to indicate the PSS, SSS and PBCH information corresponding to the candidate PScell, the second information is used to request reading the SSB of the candidate PScell.

[0240] The network device provided in this embodiment is used to implement the technical solution of the network device in the aforementioned method embodiment. Its implementation principle and technical effects are similar and will not be described in detail here.

[0241] FIG12 is a schematic diagram of a terminal device provided in an embodiment of the present application. As shown in FIG12 , the terminal device 1200 includes an acquisition module 1201 and a processing module 1202 .

[0242] Among them, the acquisition module 1201 is used to obtain the first information, the first information is used to indicate the first configuration information corresponding to the candidate PScell, the first configuration information includes: the second configuration information for L1 measurement and / or the third configuration information for early UL / DL synchronization; the processing module 1202 is used to add or change the conditional PScell ​​for the candidate PScell ​​according to the first configuration information.

[0243] In an optional embodiment, the second configuration information includes: resource configuration information for L1 measurement and / or result processing configuration information for L1 measurement results.

[0244] In an optional embodiment, the resource configuration information includes time-frequency resource information of measurement objects related to CSI and / or SSB.

[0245] In an optional embodiment, the result processing configuration information includes: a first decision condition and a first measurement event for judging the first decision condition, wherein the first decision condition is used to indicate the reporting of measurement results of L1 measurement and / or trigger the addition or change of candidate PScell; and / or, a second decision condition and a second measurement event for judging the second decision condition, wherein the second decision condition is used to indicate early UL / DL synchronization.

[0246] In an optional embodiment, the first measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than a first absolute value; the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell, and / or the difference between the measurement result of the candidate PScell ​​and the first threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than the first threshold value, and the measurement result of the candidate PScell ​​is greater than the second threshold value. And / or, the second measurement event includes one or more of the following: the measurement result of the candidate PScell ​​is greater than a second absolute value; the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source Pcell, and / or the difference between the measurement result of the candidate PScell ​​and the second threshold is greater than the measurement result of the source PScell; the measurement result of the source Pcell and / or the measurement result of the source PScell ​​is less than the third threshold value, and the measurement result of the candidate PScell ​​is greater than a fourth threshold value.

[0247] In an optional embodiment, the first judgment condition includes one or more of the following: within the first time window, the measurement result obtained from each measurement satisfies the first measurement event; within the first time window, the average of the measurement results obtained from all measurements satisfies the first measurement event; within the first time window, the measurement results obtained from at least N measurements satisfy the first measurement event; the measurement results obtained from N consecutive measurements all satisfy the first measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the first measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the first measurement event. And / or, the second judgment condition includes one or more of the following: within the second time window, the measurement result obtained from each measurement satisfies the second measurement event; within the second time window, the average of the measurement results obtained from all measurements satisfies the second measurement event; within the second time window, at least N measurement results obtained from measurements satisfy the second measurement event; the measurement results obtained from N consecutive measurements all satisfy the second measurement event; at least M of the measurement results obtained from N consecutive measurements satisfy the second measurement event; the average of the measurement results obtained from N consecutive measurements satisfies the second measurement event.

[0248] In an optional embodiment, the first configuration information includes one or more of the following: a first time window, a second time window, N, M, and a measurement interval between adjacent measurements.

[0249] In an optional embodiment, the result processing configuration information further includes one or more of the following: cell identifier, number of measurement beams, measurement objects related to CSI / SSB, measurement type, and L1 measurement interval.

[0250] In an optional embodiment, the measurement type includes one or more of the following: RSRP, RSRQ, and SINR.

[0251] In an optional embodiment, the processing module 1202 is specifically configured to: if the measurement result of the candidate PScell ​​meets the first decision condition, add or change it to the candidate PScell.

[0252] In an optional embodiment, the processing module 1202 is specifically used to: if the measurement result of the candidate PScell ​​meets the first judgment condition, send fourth information, the fourth information is used to report the measurement result of the candidate PScell; obtain fifth information, the fifth information is used to indicate adding or changing to the candidate PScell; add or change to the candidate PScell.

[0253] In an optional embodiment, the processing module 1202 is specifically used to: if the measurement result of the candidate PScell ​​meets the first judgment condition, send the sixth information, the sixth information is used to request RRC reconfiguration of the candidate PScell; obtain the seventh information, the seventh information indicates that the RRC reconfiguration is completed; and establish an RRC connection with the candidate SN where the candidate PScell ​​is located.

[0254] In an optional embodiment, the processing module 1202 is specifically used to: if the measurement result of the candidate PScell ​​meets the second judgment condition, then according to the third configuration information, the candidate PScell ​​is UL / DL synchronized in advance to obtain synchronization information; if it is determined to add or change the candidate PScell, then the candidate PScell ​​is added or changed based on the synchronization information.

[0255] In an optional embodiment, the processing module 1202 is specifically used to: send second information, the second information is used to request UL / DL synchronization of the candidate PScell ​​in advance; obtain third information, the third information is used to indicate the PSS, SSS and PBCH information corresponding to the candidate PScell, the PSS, SSS and PBCH information are used for DL ​​synchronization, or the third information is used to indicate the TA timing information corresponding to the candidate PScell, the TA timing information is used for UL synchronization.

[0256] In an optional embodiment, when the third information is used to indicate TA timing information, the second information is used to initiate PRACH access of the candidate PScell, or, when the third information is used to indicate PSS, SSS and PBCH information, the second information is used to request reading of the SSB of the candidate PScell.

[0257] In an optional embodiment, the first configuration information also includes PUCCH configuration information indicating no PRACH access corresponding to the candidate PScell, and the processing module 1202 is specifically used to: determine the validity of the TA timing information; if the TA timing information is valid, communicate with the candidate SN where the candidate PScell ​​is located according to the PUCCH configuration information, otherwise initiate PRACH access to the candidate SN.

[0258] The terminal device provided in this embodiment is used to implement the technical solution of the terminal device in the aforementioned method embodiment. Its implementation principle and technical effects are similar and will not be repeated here.

[0259] It should be noted that the module names involved in the embodiments of the present application can be defined as other names as long as the functions of each module can be achieved, and there is no specific restriction on the names of the modules.

[0260] Figure 13 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. As shown in Figure 13, the electronic device 1300 includes: at least one processor 1301, a memory 1302, a communication interface 1303, and a system bus 1304. Among them, the memory 1302 and the communication interface 1303 are connected to the processor 1301 via the system bus 1304 and complete communication with each other. The memory 1302 is used to store instructions, the communication interface 1303 is used to communicate with other devices, and the processor 1301 is used to call instructions in the memory to execute the method steps provided in the above method embodiment. The specific implementation method and technical effects are similar and will not be repeated here.

[0261] The system bus 1304 mentioned in FIG13 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The system bus 1304 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the figure shows only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0262] The communication interface 1303 is used to implement communication between the database access device and other devices (such as clients, read-write libraries, and read-only libraries).

[0263] The memory 1302 may include a random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk storage.

[0264] Processor 1301 can be a general-purpose processor, including a central processing unit, a network processor (NP), etc.; a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0265] The embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, it is used to implement the method steps in the above method embodiment. The method described in the above embodiment can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, the function can be stored as one or more instructions or codes on a computer-readable medium or transmitted on a computer-readable medium. Computer-readable media can include computer storage media and communication media, and can also include any medium that can transfer a computer program from one place to another. The storage medium can be any target medium that can be accessed by a computer.

[0266] In one possible implementation, computer-readable media may include RAM, ROM, compact disc read-only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium designed to carry or store the desired program code in the form of instructions or data structures and accessible by a computer. Furthermore, any connection is appropriately referred to as a computer-readable medium. For example, if software is transmitted from a website, server or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of medium. Disk and disc as used herein include optical disc, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks typically reproduce data magnetically, while optical discs reproduce data optically using lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0267] The present application also provides a computer program product, which includes a computer program. When the computer program is executed, the computer executes the method steps in the above method embodiment.

[0268] An embodiment of the present application also provides a chip system, including at least one processor and a communication interface, the communication interface and the at least one processor are interconnected through lines, and the at least one processor is used to run computer programs or instructions to execute the method steps in the above method embodiment.

[0269] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0270] The present application embodiment is described with reference to the flow chart and / or block diagram of the method, device (system) and computer program product according to the embodiment of the present application.It should be understood that each flow process and / or box in the flow chart and / or block diagram and the combination of the flow process and / or box in the flow chart and / or block diagram can be realized by computer program instructions.These computer program instructions can be provided to the processing unit of general-purpose computer, special-purpose computer, embedded processing machine or other programmable device to produce a machine, so that the instruction executed by the processing unit of computer or other programmable data processing device produces the device for realizing the function specified in one flow chart flow or multiple flows and / or one block or multiple blocks of block diagram.

[0271] The above specific implementation methods further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for adjusting primary and secondary cells, characterized in that: include: Indicates first information, where the first information is used to indicate first configuration information corresponding to a candidate primary and secondary cell PScell, where the first configuration information is used for conditional addition or change of the PScell, and the first configuration information includes: second configuration information for L1 measurement and / or third configuration information for early uplink UL / downlink DL synchronization.

2. The method according to claim 1, characterized in that The second configuration information includes: Resource configuration information for L1 measurement and / or result processing configuration information for L1 measurement result processing, wherein the resource configuration information includes time-frequency resource information of measurement objects related to channel state information CSI and / or synchronization signal blocks SSB.

3. The method according to claim 2, characterized in that The result processing configuration information includes: a first decision condition and a first measurement event used to determine the first decision condition, wherein the first decision condition is used to trigger reporting of a measurement result of an L1 measurement and / or addition or change of the candidate PScell; and / or, a second decision condition and a second measurement event used to determine the second decision condition, wherein the second decision condition is used to trigger early UL / DL synchronization.

4. The method according to claim 3, characterized in that The first measurement event includes one or more of the following: The measurement result of the candidate PScell is greater than a first absolute value; The difference between the measurement result of the candidate PScell and the first threshold is greater than the measurement result of the source primary cell Pcell, and / or the difference between the measurement result of the candidate PScell and the first threshold is greater than the measurement result of the source PScell; The measurement result of the source Pcell and / or the measurement result of the source PScell is smaller than a first threshold, and the measurement result of the candidate PScell is larger than a second threshold; And / or, the second measurement event includes one or more of the following: The measurement result of the candidate PScell is greater than a second absolute value; The difference between the measurement result of the candidate PScell and the second threshold is greater than the measurement result of the source PScell, and / or the difference between the measurement result of the candidate PScell and the second threshold is greater than the measurement result of the source PScell; The measurement result of the source Pcell and / or the measurement result of the source PScell is smaller than a third threshold, and the measurement result of the candidate PScell is larger than a fourth threshold.

5. The method according to claim 3 or 4, characterized in that The first decision condition includes one or more of the following: Within the first time window, the measurement results obtained from each measurement satisfy the first measurement event; Within the first time window, an average value of measurement results obtained from all measurements satisfies the first measurement event; Within the first time window, measurement results obtained from at least N measurements satisfy the first measurement event; The measurement results obtained from N consecutive measurements all satisfy the first measurement event; At least M measurement results obtained from N consecutive measurements satisfy the first measurement event; An average value of measurement results obtained from N consecutive measurements satisfies the first measurement event; And / or, the second decision condition includes one or more of the following: Within the second time window, the measurement results obtained from each measurement satisfy the second measurement event; Within the second time window, an average value of measurement results obtained from all measurements satisfies the second measurement event; Within the second time window, measurement results obtained from at least N measurements satisfy the second measurement event; The measurement results obtained from N consecutive measurements all satisfy the second measurement event; At least M measurement results obtained from the N consecutive measurement results satisfy the second measurement event; An average value of measurement results obtained from N consecutive measurements satisfies the second measurement event. 6 . The method according to claim 5 , wherein the first configuration information comprises one or more of the following: the first time window, the second time window, N, M, and a measurement interval between adjacent measurements.

7. The method according to any one of claims 3 to 6, characterized in that The result processing configuration information also includes one or more of the following: cell identifier, number of measurement beams, measurement objects related to CSI and / or SSB, measurement type, and L1 measurement interval.

8. The method according to claim 7, characterized in that The measurement type includes one or more of the following: reference signal received power RSRP, reference signal received quality RSRQ, and signal to interference plus noise ratio SINR.

9. The method for adjusting the primary and secondary cells according to any one of claims 1 to 8, characterized in that: Also includes: acquiring second information, where the second information is used to request early UL / DL synchronization of the candidate PScell; Indicates third information, wherein the third information is used to indicate the primary synchronization signal PSS, secondary synchronization signal SSS and physical broadcast channel PBCH information corresponding to the candidate PScell, and the PSS, the SSS and the PBCH information are used for DL synchronization, and / or, the third information is used to indicate the timing advance TA timing information corresponding to the candidate PScell, and the TA timing information is used for UL synchronization.

10. The method according to claim 9, characterized in that In a case where the third information is used to indicate the TA timing information, the second information is used to initiate physical random access channel (PRACH) access of the candidate PScell; Alternatively, when the third information is used to indicate the PSS, the SSS, and the PBCH information, the second information is used to request reading the SSB of the candidate PScell.

11. A method for adjusting primary and secondary cells, characterized in that: include: Acquire first information, where the first information is used to indicate first configuration information corresponding to the candidate PScell, where the first configuration information includes: second configuration information for L1 measurement and / or third configuration information for early UL / DL synchronization; According to the first configuration information, a conditional PScell is added or changed for the candidate PScell.

12. The method according to claim 11, characterized in that The second configuration information includes: Resource configuration information for L1 measurement and / or result processing configuration information for L1 measurement results, where the resource configuration information includes time-frequency resource information of measurement objects related to CSI and / or SSB.

13. The method according to claim 12, characterized in that The result processing configuration information includes: a first decision condition and a first measurement event used to determine the first decision condition, wherein the first decision condition is used to trigger reporting of a measurement result of an L1 measurement and / or addition or change of the candidate PScell; and / or, a second decision condition and a second measurement event used to determine the second decision condition, wherein the second decision condition is used to trigger early UL / DL synchronization.

14. The method according to claim 13, characterized in that The first measurement event includes one or more of the following: The measurement result of the candidate PScell is greater than a first absolute value; The difference between the measurement result of the candidate PScell and the first threshold is greater than the measurement result of the source PScell, and / or the difference between the measurement result of the candidate PScell and the first threshold is greater than the measurement result of the source PScell; The measurement result of the source Pcell and / or the measurement result of the source PScell is smaller than a first threshold, and the measurement result of the candidate PScell is larger than a second threshold; And / or, the second measurement event includes one or more of the following: The measurement result of the candidate PScell is greater than a second absolute value; The difference between the measurement result of the candidate PScell and the second threshold is greater than the measurement result of the source PScell, and / or the difference between the measurement result of the candidate PScell and the second threshold is greater than the measurement result of the source PScell; The measurement result of the source Pcell and / or the measurement result of the source PScell is smaller than a third threshold, and the measurement result of the candidate PScell is larger than a fourth threshold.

15. The method according to claim 13 or 14, characterized in that The first decision condition includes one or more of the following: Within the first time window, a measurement result obtained from each measurement satisfies the first measurement event; within the first time window, an average value of the measurement results obtained from all measurements satisfies the first measurement event; Within the first time window, measurement results obtained from at least N measurements satisfy the first measurement event; The measurement results obtained from N consecutive measurements all satisfy the first measurement event; At least M measurement results obtained from N consecutive measurements satisfy the first measurement event; An average value of measurement results obtained from N consecutive measurements satisfies the first measurement event; And / or, the second decision condition includes one or more of the following: Within the second time window, the measurement results obtained from each measurement satisfy the second measurement event; Within the second time window, an average value of measurement results obtained from all measurements satisfies the second measurement event; Within the second time window, measurement results obtained from at least N measurements satisfy the second measurement event; The measurement results obtained from N consecutive measurements all satisfy the second measurement event; At least M measurement results obtained from the N consecutive measurement results satisfy the second measurement event; An average value of measurement results obtained from N consecutive measurements satisfies the second measurement event.

16. The method according to claim 15, wherein the first configuration information comprises one or more of the following: the first time window, the second time window, N, M, and a measurement interval between adjacent measurements.

17. The method according to any one of claims 13 to 16, characterized in that The result processing configuration information also includes one or more of the following: cell identifier, number of measurement beams, measurement objects related to CSI / SSB, measurement type, and L1 measurement interval.

18. The method according to claim 17, characterized in that The measurement type includes one or more of the following: RSRP, RSRQ, and SINR.

19. The method according to any one of claims 13 to 18, characterized in that The conditional addition or change of the candidate PScell according to the first configuration information includes: If the measurement result of the candidate PScell meets the first decision condition, the cell is added to or changed into the candidate PScell.

20. The method according to claim 19, characterized in that If the measurement result of the candidate PScell satisfies the first decision condition, adding or changing the candidate PScell to the candidate PScell includes: If the measurement result of the candidate PScell meets the first decision condition, sending fourth information, where the fourth information is used to report the measurement result of the candidate PScell; Acquire fifth information, where the fifth information is used to indicate adding or changing to the candidate PS cell; Add or change to the candidate PScell.

21. The method according to claim 19, wherein If the measurement result of the candidate PScell satisfies the first decision condition, adding or changing the candidate PScell to the candidate PScell includes: If the measurement result of the candidate PScell meets the first decision condition, the candidate PScell is randomly accessed.

22. The method according to any one of claims 13 to 21, characterized in that The adding or changing a conditional PScell in the candidate PScell according to the first configuration information includes: If the measurement result of the candidate PScell meets the second decision condition, performing UL / DL synchronization on the candidate PScell in advance according to the third configuration information to obtain the synchronization information; If it is determined to add or change the candidate PScell, the candidate PScell is added or changed based on the synchronization information.

23. The method according to claim 22, characterized in that The performing UL / DL synchronization on the candidate PScell in advance to obtain the synchronization information includes: sending second information, where the second information is used to request early UL / DL synchronization of the candidate PScell; Obtain third information, where the third information is used to indicate the PSS, SSS and PBCH information corresponding to the candidate PScell, where the PSS, SSS and PBCH information are used for DL synchronization, and / or the third information is used to indicate the TA timing information corresponding to the candidate PScell, where the TA timing information is used for UL synchronization.

24. The method according to claim 23, wherein In a case where the third information is used to indicate the TA timing information, the second information is used to initiate PRACH access of the candidate PScell; Alternatively, when the third information is used to indicate the PSS, the SSS, and the PBCH information, the second information is used to request reading the SSB of the candidate PScell.

25. The method according to any one of claims 22 to 24, characterized in that The first configuration information further includes physical uplink control channel (PUCCH) configuration information without PRACH access corresponding to the candidate PScell. Adding or changing the candidate PScell based on the synchronization information includes: Determining the validity of the TA timing information; If the TA timing information is valid, communication is performed with the candidate SN where the candidate PScell is located according to the PUCCH configuration information; otherwise, PRACH access is initiated to the candidate SN.

26. An electronic device, characterized in that: include: processor and memory; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the electronic device performs the method according to any one of claims 1 to 10, or the electronic device performs the method according to any one of claims 11 to 25.

27. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 10 is implemented; or when the computer program is executed by a processor, the method according to any one of claims 11 to 25 is implemented.

28. A chip system, characterized in that: The method comprises at least one processor and a communication interface, wherein the communication interface and the at least one processor are interconnected via a line, and the at least one processor is used to run a computer program or instruction to execute the method according to any one of claims 1 to 10, or to execute the method according to any one of claims 11 to 25.

29. A computer program product, characterized in that The invention comprises a computer program, which, when being executed, causes a computer to execute the method according to any one of claims 1 to 10, or causes a computer to execute the method according to any one of claims 11 to 25.

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