Cell configuration method and device, terminal, base station, storage medium and program product

Abstract

The invention discloses a cell configuration method and device, a terminal, a base station, a storage medium and a program product, and belongs to the technical field of wireless communication. The method comprises: receiving candidate configuration information sent by a base station (S401); the candidate configuration information comprises candidate cell configuration; receiving first indication information sent by the base station through the L1 signaling or the L2 signaling (S402); the first indication information is used for indicating to change a primary cell and / or a secondary cell of the terminal; and configuring a primary cell and / or a secondary cell for the terminal according to the first indication information and the candidate configuration information (S403). According to the scheme, the communication efficiency of the system is improved.

Description

Cell configuration method, device, terminal, base station, storage medium and program product Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a cell configuration method, device, terminal, base station, storage medium and program product. Background Art

[0002] In wireless communication scenarios, carrier aggregation (CA) can be used between base stations and terminals to increase the available bandwidth and thus improve the transmission rate.

[0003] In a carrier aggregation scenario, when a terminal performs cell handover, it is usually necessary to change the primary cell and the secondary cell. In related technologies, the base station needs to pre-send the configuration information of the secondary cell after the handover to the terminal via RRC (Radio Resource Control) signaling.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a cell configuration method, apparatus, terminal, base station, storage medium, and program product. The technical solution is as follows:

[0006] On the one hand, an embodiment of the present application provides a cell configuration method, which is performed by a terminal and includes:

[0007] receiving candidate configuration information sent by a base station; the candidate configuration information includes candidate cell configurations;

[0008] receiving first indication information sent by the base station through L1 signaling or L2 signaling, wherein the first indication information is used to indicate a change to a primary cell and / or a secondary cell of the terminal;

[0009] The primary cell and / or secondary cell is configured for the terminal according to the first indication information and the candidate configuration information.

[0010] In one aspect, an embodiment of the present application provides a cell configuration method, which is performed by a base station and includes:

[0011] Sending candidate configuration information to the terminal; the candidate configuration information includes candidate cell configuration;

[0012] The first indication information is sent to the terminal through L1 signaling or L2 signaling; the first indication information is used to indicate a change to the primary cell and / or secondary cell of the terminal, so that the terminal configures the primary cell and / or secondary cell of the terminal according to the first indication information and the candidate configuration information.

[0013] In another aspect, an embodiment of the present application provides a data transmission device, the device comprising:

[0014] A receiving module, configured to receive candidate configuration information sent by a base station; the candidate configuration information includes candidate cell configurations;

[0015] The receiving module is further configured to receive first indication information sent by the base station through L1 signaling or L2 signaling; the first indication information is used to instruct a change to the primary cell and / or secondary cell of the terminal;

[0016] The configuration module is configured to configure the primary cell and / or the secondary cell for the terminal according to the first indication information and the candidate configuration information.

[0017] In another aspect, an embodiment of the present application provides a data transmission device, the device comprising:

[0018] A sending module, configured to send candidate configuration information to a terminal; the candidate configuration information includes candidate cell configurations;

[0019] The sending module is also used to send first indication information to the terminal through L1 signaling or L2 signaling; the first indication information is used to indicate a change to the primary cell and / or secondary cell of the terminal, so that the terminal configures the primary cell and / or secondary cell of the terminal according to the first indication information and the candidate configuration information.

[0020] On the other hand, an embodiment of the present application provides a terminal, comprising a processor, a memory, and a transceiver;

[0021] The transceiver is configured to receive candidate configuration information sent by a base station, wherein the candidate configuration information includes a candidate cell configuration; receive first indication information sent by the base station through L1 signaling or L2 signaling, wherein the first indication information is used to indicate a change to a primary cell and / or a secondary cell of the terminal;

[0022] The processor is configured to configure a primary cell and / or a secondary cell for the terminal according to the first indication information and the candidate configuration information.

[0023] On the other hand, an embodiment of the present application provides a base station, comprising a processor, a memory, and a transceiver;

[0024] The transceiver is used to send candidate configuration information to the terminal; the candidate configuration information includes a candidate cell configuration; first indication information is sent to the terminal through L1 signaling or L2 signaling; the first indication information is used to indicate a change to the primary cell and / or secondary cell of the terminal, so that the terminal configures the primary cell and / or secondary cell of the terminal according to the first indication information and the candidate configuration information.

[0025] On the other hand, an embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored. The computer program is loaded and executed by a processor to implement the above-mentioned cell configuration method.

[0026] In another aspect, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the above-described cell configuration method.

[0027] On the other hand, a computer program is provided, which includes computer instructions. A processor of a computer device executes the computer instructions, so that the computer device executes the above-mentioned cell configuration method.

[0028] On the other hand, a chip is provided, which is used to execute the above-mentioned cell configuration method.

[0029] The technical solutions provided in the embodiments of the present application can bring the following beneficial effects:

[0030] In the carrier aggregation scenario, the terminal can receive the first indication information sent by the base station through L1 signaling or L2 signaling, and configure the terminal for the primary cell and / or secondary cell in combination with the first indication information and the pre-received candidate configuration information. That is, during the cell switching process, only L1 signaling or L2 signaling needs to be interacted between the base station and the terminal to realize the configuration of the primary cell and / or secondary cell, which saves the signaling interaction between the terminal and the base station, thereby improving the communication efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] FIG1 is a schematic diagram of a network architecture of a communication system provided by one embodiment of the present application;

[0033] FIG2 is a schematic diagram of a secondary cell activation / deactivation message involved in this application;

[0034] FIG3 is a schematic diagram of a cell switching process across base stations involved in this application;

[0035] FIG4 is a flowchart of a cell configuration method provided by an embodiment of the present application;

[0036] FIG5 is a flowchart of a cell configuration method provided by an embodiment of the present application;

[0037] FIG6 is a schematic diagram of a cell configuration process provided by an embodiment of the present application;

[0038] FIG7 is a flowchart of a cell configuration method provided by an embodiment of the present application;

[0039] FIG8 is a flowchart of a cell configuration method provided by an embodiment of the present application;

[0040] FIG9 is a schematic diagram of an association involved in the embodiment shown in FIG8 ;

[0041] FIG10 is a schematic diagram of an association involved in the embodiment shown in FIG8 ;

[0042] FIG11 is a block diagram of a cell configuration device provided by an embodiment of the present application;

[0043] FIG12 is a block diagram of a cell configuration apparatus provided by one embodiment of the present application;

[0044] FIG13 is a schematic diagram of the structure of a computer device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0046] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. A person skilled in the art will appreciate that, with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0047] Please refer to Figure 1, which shows a schematic diagram of a network architecture of a communication system provided by an embodiment of the present application. The network architecture may include: a terminal 10 and a base station 20.

[0048] There are usually multiple terminals 10, and one or more terminals 10 can be distributed in the cell managed by each base station 20. The terminals 10 can include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE), mobile stations (MS), terminals, etc. For ease of description, in the embodiments of the present application, the above-mentioned devices are collectively referred to as terminals.

[0049] The base station 20 is a device deployed in the access network to provide wireless communication functions for the terminal 10. The base station 20 may include various forms of satellite base stations, macro base stations, micro base stations, relay stations, access points, etc. In systems using different wireless access technologies, the names of devices with base station functions may be different. For example, in the 5th generation mobile communication (5th-Generation, 5G) new radio (New Radio, NR) system, it is called gNodeB or gNB. With the evolution of communication technology, the name "base station" may change. For the convenience of description, in the embodiments of the present application, the above-mentioned devices that provide wireless communication functions for the terminal 20 are collectively referred to as base stations.

[0050] Optionally, not shown in Figure 1, the above network architecture also includes other network devices, such as: Central Network Control (CNC), Access and Mobility Management Function (AMF) device, Session Management Function (SMF) or User Plane Function (UPF) device, etc.

[0051] The "5G NR system" in the embodiments of this disclosure may also be referred to as a 5G system or an NR system, but those skilled in the art will understand the meaning. The technical solutions described in the embodiments of this disclosure are applicable to the 5G NR system and to subsequent evolution systems of the 5G NR system.

[0052] Before introducing the solutions shown in the subsequent embodiments of this application, several noun concepts involved in this application are first introduced.

[0053] 1) SCell activation / deactivation

[0054] Carrier aggregation (CA) enables the NR system to support larger bandwidth and achieve higher system peak rates by jointly scheduling and using resources on multiple component carriers (CCs). Multiple CCs are further divided into PCCs (Primary Component Carriers) and SCCs (Secondary Component Carriers). Each CC corresponds to an independent cell.

[0055] There is only one PCC, and the corresponding cell is called PCell (Primary Cell). PCell is responsible for RRC communication with UE.

[0056] The SCC only provides additional radio resources, and the corresponding cell is called an SCell (Secondary Cell). A UE can be configured with multiple SCells, each with an index. When the network adds an SCell, the index value is indicated through the sCellIndex IE. There is no RRC connection between the SCell and the UE. An RRC reconfiguration message (RRCReconfiguration) is sent to the UE via the PCell to add, modify, or release the SCell configuration.

[0057] UE data does not need to be sent and received on multiple carriers in all slots. To achieve energy saving on the UE side, LTE / NR both support SCell activation / deactivation mechanisms. For a deactivated SCell, the UE's behavior includes:

[0058] Do not transmit SRS (Sounding Reference Signal) on SCell;

[0059] The SCell’s CSI (Channel State Information) is not reported;

[0060] UL-SCH (Uplink Shared Channel) / PUCCH (Physical Uplink Control Channel) / RACH (Random Access Channel) are not sent on the SCell;

[0061] Do not monitor the PDCCH (Physical Downlink Control Channel) sent on the SCell;

[0062] Do not monitor the PDCCH of the scheduled SCell.

[0063] In the NR system, there are three ways to activate / deactivate SCells:

[0064] Method 1: Activate / deactivate the SCell using the sCellState IE in the SCell configuration. When the network adds an SCell, if the configuration contains the sCellState IE, the SCell is activated; otherwise, the SCell is deactivated.

[0065] For handover scenarios, the target cell can perform add / modify / release operations based on the SCell list configured in the source cell. For SCells with added / modified configuration parameters, the SCell state is determined based on whether the configuration contains the sCellState IE; for SCells that are not released in the list, the state becomes deactivated.

[0066] Method 2: Activate / deactivate the SCell based on the MAC CE; as shown in Figure 2, it shows a schematic diagram of the secondary cell activation / deactivation message involved in the embodiment of the present application. As shown in Figure 2, the protocol defines SCell Activation / Deactivation MAC CEs with lengths of 1 and 4 bytes, respectively. Ci corresponds to the activation / deactivation status of the SCell with sCellIndex configured as i. If Ci is set to 1, it indicates that the corresponding SCell is activated; if Ci is set to 0, it indicates that the corresponding SCell is deactivated.

[0067] Method 3: Timer-based SCell deactivation: The UE maintains a deactivation timer, sCellDeactivationTimer, for each SCell, based on configuration. During the timer's running period, the UE restarts the sCellDeactivationTimer each time it receives an uplink / downlink scheduling message from the network or performs an uplink transmission. When the timer expires, the SCell enters the deactivated state.

[0068] 2) Switching process

[0069] Similar to LTE (Long Term Evolution) systems, NR systems support handovers for connected UEs. When a user using network services moves from one cell to another, or due to factors such as wireless transmission load adjustments, activation and maintenance, or equipment failure, the system transfers the user's communication link with the original cell to the new cell to ensure communication continuity and service quality. This is called a handover.

[0070] As shown in FIG3 , it shows a schematic diagram of a cell handover process across base stations involved in an exemplary embodiment of the present application. The general process is as follows:

[0071] S31: The source base station triggers handover based on the L3 measurement results reported by the terminal and sends a HANDOVER REQUEST to the target cell via the Xn interface.

[0072] S32: The target base station accepts the handover request from the source base station, provides the RRC configuration of the target cell, and feeds it back to the source base station as part of the HANDOVER REQUEST ACKNOWLEDGE message.

[0073] S33, the source base station sends an RRCReconfiguration message to the UE, instructing the UE to initiate a handover procedure, as well as RRC configuration information for accessing the target cell;

[0074] S34: The UE accesses the target cell and sends an RRCReconfigurationComplete message to the target cell.

[0075] In one possible implementation, the handover process is triggered by L3 signaling (such as RRC Reconfiguration). To further reduce the latency of L3 handover, an embodiment of the present application proposes a handover process that supports L1 / L2 measurement / signaling. Unlike L3 handover, L1 / L2 (L1 refers to the physical layer, and L2 refers to the MAC layer and / or PDCP layer) handover can include some cell configuration information in the handover command. The network can provide the configuration of each candidate cell to the UE in advance through RRC messages. When there is a handover requirement, the L1 / L2 HO CMD is used to instruct the UE to switch to one of the candidate cells.

[0076] Among them, the L3 switching signaling may include changes to the SCell configuration, i.e., addition / modification / release. For the added / modified SCell, the SCell state is indicated by ScellState. For other SCells in the list that have not been released, the SCell enters the deactivated state and waits for the switching to be completed before activation is indicated by the SCell Activation / Deactivation MAC CE. It can be seen that during the above switching process, the state of the SCell needs to be indicated by RRC signaling + MAC CE (L2 signaling). When the solution shown in the present application supports the switching command of L1 / L2mobility, the switching signaling can be sent as an L2 signaling, which facilitates the sending of the SCell change indication and / or status indication and the switching command to the UE through the same L2 signaling. In other words, the solution involved in the present application can solve the following problems:

[0077] How to indicate the update of SCell, such as release / addition / modification, through L1 / L2 signaling; and how to determine the status of SCell during the cell change process based on L1 / L2 signaling.

[0078] Please refer to Figure 4, which shows a flowchart of a cell configuration method provided by an embodiment of the present application. The method can be executed by a terminal, wherein the terminal can be a terminal in the network architecture shown in Figure 1. The method can include the following steps:

[0079] Step 401: Receive candidate configuration information sent by a base station; the candidate configuration information includes candidate cell configurations.

[0080] In an embodiment of the present application, the candidate configuration information includes several pre-set cell configurations. When a cell handover occurs subsequently, the terminal can select part of the cell configurations from the candidate configuration information to configure the primary cell and / or secondary cell according to the instructions of the network side.

[0081] Step 402: Receive first indication information sent by the base station through L1 signaling or L2 signaling; the first indication information is used to instruct to change the primary cell and / or secondary cell of the terminal.

[0082] The L1 signaling may be physical layer signaling; the L2 signaling may be MAC (Media Access Control) layer signaling or PDCP (Packet Data Convergence Protocol) layer signaling.

[0083] In the embodiment of the present application, the primary cell may include a special cell (SpCell), which represents a primary cell in an MCG (Master Cell Group) or an SCG (Secondary Cell Group).

[0084] Step 403: Configure the primary cell and / or the secondary cell for the terminal according to the first indication information and the candidate configuration information.

[0085] To sum up, in the scheme shown in the embodiment of the present application, in the carrier aggregation scenario, the terminal can receive the first indication information sent by the base station through L1 signaling or L2 signaling, and configure the terminal for the main cell and / or secondary cell in combination with the first indication information and the pre-received candidate configuration information. That is to say, during the cell switching process, only L1 signaling or L2 signaling needs to be interacted between the base station and the terminal to realize the configuration of the main cell and / or secondary cell, which saves the signaling interaction between the terminal and the base station, thereby improving the communication efficiency of the system.

[0086] Please refer to Figure 5, which shows a flow chart of a cell configuration method provided by an embodiment of the present application. The method can be executed by a base station, wherein the base station can be a terminal in the network architecture shown in Figure 1. The method can include the following steps:

[0087] Step 501: Send candidate configuration information to the terminal; the candidate configuration information includes candidate cell configurations.

[0088] Step 502, first indication information is sent to the terminal through L1 signaling or L2 signaling; the first indication information is used to indicate a change to the primary cell and / or secondary cell of the terminal, so that the terminal configures the primary cell and / or secondary cell of the terminal according to the first indication information and the candidate configuration information.

[0089] To sum up, in the scheme shown in the embodiment of the present application, in the carrier aggregation scenario, the terminal can receive the first indication information sent by the base station through L1 signaling or L2 signaling, and configure the terminal for the main cell and / or secondary cell in combination with the first indication information and the pre-received candidate configuration information. That is to say, during the cell switching process, only L1 signaling or L2 signaling needs to be interacted between the base station and the terminal to realize the configuration of the main cell and / or secondary cell, which saves the signaling interaction between the terminal and the base station, thereby improving the communication efficiency of the system.

[0090] Please refer to Figure 6, which shows a schematic diagram of a cell configuration process provided by an embodiment of the present application. As shown in Figure 6, a terminal 601 and a base station 602 communicate with each other through carrier aggregation.

[0091] In Figure 6, base station 602 first sends candidate configuration information to terminal 601 (step S1), which may include at least one candidate cell configuration. Subsequently, when terminal 601 undergoes a cell handover, base station 602 sends first indication information to terminal 601 via L1 / L2 signaling (step S2). Terminal 601 combines this first indication information with the candidate configuration information to complete the configuration of the primary cell and / or secondary cell after the handover (step S3).

[0092] Please refer to Figure 7, which shows a flowchart of a cell configuration method provided by an embodiment of the present application. The method can be interactively executed by a terminal and a base station; wherein the terminal and base station can be the terminal and base station in the network architecture shown in Figure 1. As shown in Figure 7, the method can include the following steps:

[0093] Step 701: The base station sends candidate configuration information to the terminal; the terminal receives the candidate configuration information.

[0094] In the embodiment of the present application, the candidate configuration information sent by the base station to the terminal may be organized as follows:

[0095] The candidate configuration information includes at least one candidate cell configuration.

[0096] The candidate cell configuration includes: a candidate cell index, a measurement configuration, and candidate cell configuration information.

[0097] That is, in a possible implementation of the embodiment of the present application, the candidate configuration information may be set in units of candidate cell configurations, where each candidate cell configuration corresponds to a cell configuration mode.

[0098] In one possible implementation, the candidate cell configuration information includes at least one of the following information:

[0099] Cell ID (Identity), C-RNTI (Cell-Radio Network Temporary Identity), RACH (Random Access Channel) resources, system information, TAG (Timing Advance Group) ID, uplink bandwidth configuration, downlink bandwidth configuration.

[0100] In a possible implementation manner of the embodiment of the present application, the UE may receive a first RRC message sent by the network, where the first RRC message includes at least a first list (i.e., the above-mentioned candidate configuration information), and the first list includes one or more candidate cell configurations, each candidate cell being associated with at least:

[0101] a) candidate cell index;

[0102] b) measurement configuration;

[0103] c) Cell configuration information (ie, the candidate cell configuration information mentioned above). Exemplarily, the cell configuration information includes: cell ID, C-RNTI, RACH resources, system information, TAG ID, up / down bandwidth configuration, etc.

[0104] Step 702: The base station sends first indication information to the terminal through L1 signaling or L2 signaling; the terminal receives the first indication information.

[0105] In one possible implementation, the first indication information is at least one of the following three types of signaling:

[0106] The first indication signaling is used to instruct to change the primary cell of the terminal;

[0107] The second indication signaling is used to instruct to change the secondary cell of the terminal;

[0108] Alternatively, the third indication signaling is used to indicate a change to a primary cell and a secondary cell of the terminal.

[0109] For example, the three types of signaling mentioned above may be three different MAC CE (Control Element, control unit) signaling or DCI (Downlink Control Information, downlink control information) signaling.

[0110] In one possible implementation, the first indication information includes a first identification bit, where the first identification bit is used to indicate one of the following situations:

[0111] The first indication information is used to indicate the primary cell of the terminal;

[0112] The first indication information is used to instruct to change the secondary cell of the terminal;

[0113] Alternatively, the first indication information is used to instruct to change the primary cell and the secondary cell of the terminal.

[0114] In another possible implementation scheme of the embodiment of the present application, the base station on the network side can also use the same signaling to indicate the configuration of the primary cell and / or secondary cell, wherein the first identification bit in the signaling is used to indicate the cell type currently configured by the signaling.

[0115] In a possible implementation manner, the first indication information includes a first indication bit of the first secondary cell;

[0116] The first indication bit is used to indicate that a change occurs in the first secondary cell.

[0117] In a possible implementation manner, the first indication information includes a second indication bit of the second secondary cell;

[0118] The second indication bit is used to indicate that the second secondary cell does not change.

[0119] In a possible implementation, the first indication information further includes a third indication bit of the first secondary cell; the third indication bit is used to indicate a change type of the first secondary cell; the change type is addition, release, or replacement.

[0120] In a possible implementation, when the third indicator bit is 0, the third indicator bit is used to indicate that the change type of the first secondary cell is release.

[0121] In one possible implementation, when the third indicator bit is non-zero, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement, and the third indicator bit is used to indicate a first candidate cell index; wherein the candidate cell corresponding to the first candidate cell index is a target cell for performing the addition or replacement operation on the first secondary cell. In other words, the candidate cell corresponding to the first candidate cell index is the secondary cell to be added, or the secondary cell to be replaced.

[0122] In this embodiment of the present application, the network side can use a third indicator bit to simultaneously indicate the change type of the added or replaced first secondary cell and the target cell to be added or replaced. In other words, when the third indicator bit includes the first candidate cell index, it indicates that the cell corresponding to the first candidate cell index is the secondary cell to be added or replaced.

[0123] In a possible implementation, when the third indicator bit is 1, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement; and the first indication information further includes a second candidate cell index;

[0124] The candidate cell corresponding to the second candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

[0125] In this embodiment of the present application, when the value of the third indicator bit is 1, it indicates that the first secondary cell is being added or replaced. At the same time, another indicator bit is used to indicate the target cell being added or replaced. In other words, when the third indicator bit is 1, the first indication information also includes a corresponding first candidate cell index, and the cell indicated by the first candidate cell index is the secondary cell being added or replaced.

[0126] In a possible implementation, the first indication information further includes a fourth indication bit of each secondary cell that is replaced or released; the fourth indication bit is used to indicate a cell index of each secondary cell.

[0127] In an embodiment of the present application, for each secondary cell that needs to be replaced or released in the terminal's current secondary cell, the network side can carry the cell index of each secondary cell to be replaced or released in the first indication information to notify the terminal which current secondary cells need to be replaced or released.

[0128] In an embodiment of the present application, the UE receives first indication information sent by the network, where the first indication information is used to instruct the UE to change the SpCell and / or SCell. The first indication information may be a MAC CE or a DCI. Furthermore, in order to distinguish different types of cell changes:

[0129] For SpCell replacement, SpCell+SCell replacement, and SCell replacement, the first indication information is three different signalings, for example, three different MAC CEs or DCIs.

[0130] The first indication information includes an identification bit, which is used to distinguish different cell change types.

[0131] When the first indication information is used to instruct the UE to change the SCell, the first indication information includes at least:

[0132] a) The SCell index to be replaced / released is shown in Table 1 below. The first row of the bitmap in Table 1 shows the SCell indices arranged in ascending / descending order from high to low bits in the bitmap. A bit set to 1 indicates the SCell index to be added / replaced / released.

[0133] b) For the SCell index that needs to be added / replaced / released indicated in a), further indicate release / addition / replacement.

[0134] Implementation 1: As shown in Table 1, a bit position indicating release / addition / replacement of 0 indicates release, and a bit position indicating release / addition / replacement of non-zero indicates addition / replacement, and the non-zero position indicates a candidate cell index. The number of bits occupied by the bit position indicating release / addition / replacement is X bits.

[0135] Table 1

[0136]

[0137] Implementation method 2: As shown in Table 2, setting 0 indicates release, setting 1 indicates addition / change, and if set to 1, it further indicates the candidate cell index. The number of bits occupied by the bit used to indicate the candidate cell index is X bits.

[0138] Table 2

[0139]

[0140] In this solution, the value of X in X bits in Table 1 and Table 2 is not limited, and X is an integer greater than or equal to 1.

[0141] For an SCell that does not need to be released / replaced, the release / addition / replacement indication bit corresponds to 0, or the release / addition / replacement indication bit is not included.

[0142] In addition, this solution does not restrict the position of the R bit (reserved bit), whether the R bit is included, or the number of R bits.

[0143] Take Table 1 above as an example:

[0144] Case 1 (release): The bitmap corresponding to the cell with SCell index = 1 in the current SCell list is 1, and the change indication bit is 0, indicating that the SCell corresponding to SCell index = 1 in the current SCell list is released;

[0145] Case 2 (Replacement): The bitmap corresponding to the cell with SCell index = 2 in the current SCell list is 1, and the change indication bit is non-0, indicating that the SCell corresponding to SCell index = 2 in the current SCell list is released, and the cell with candidate cell index 1 is added as the SCell. The SCell index of the newly added SCell is 2.

[0146] Case 3 (addition): The bitmap corresponding to SCell index=5 is 1, but SCell index#5 is not in the current SCell list, indicating that the UE is instructed to add the cell corresponding to candidate cell index 3 as an SCell, and the index of the newly added SCell is 5.

[0147] Step 703: The terminal configures the primary cell and / or the secondary cell according to the first indication information and the candidate configuration information.

[0148] In an embodiment of the present application, under the above-mentioned organizational mode 1, during the cell switching process, the terminal can configure the primary cell and / or secondary cell of the terminal according to the content indicated by the first indication information and the candidate configuration information previously received.

[0149] In a possible implementation, the solution shown in the embodiment of the present application further includes:

[0150] For a secondary cell that is changed in the current secondary cell list of the terminal and is determined based on the first indication information, the cell state of the changed secondary cell is set according to the secondary cell state indication information included in the candidate configuration information.

[0151] In the embodiment of the present application, the cell state of the secondary cell that changes during cell switching can be indicated by candidate configuration information. Accordingly, the terminal configures the cell state of the secondary cell that changes after switching according to the candidate configuration information.

[0152] In a possible implementation, the solution shown in the embodiment of the present application further includes:

[0153] For a secondary cell that is changed in the current secondary cell list of the terminal and is determined based on the first indication information, the cell state of the changed secondary cell is set to an activated state or a deactivated state.

[0154] In the embodiment of the present application, the terminal may set the cell state of the secondary cell that changes during cell switching to a default activated state or deactivated state.

[0155] In a possible implementation, the solution shown in the embodiment of the present application further includes:

[0156] For the secondary cell that has not changed in the current secondary cell list of the terminal and is determined based on the first indication information, and the secondary cell that has changed belongs to the current secondary cell list of the terminal, the cell state of the secondary cell that has not changed is set to a deactivated state, or the cell state of the secondary cell that has not changed is kept unchanged.

[0157] In the embodiment of the present application, for the cell state of the secondary cell that has not changed during the cell handover, the terminal may set it to a default deactivated state, or keep the cell state before the cell handover unchanged.

[0158] In a possible implementation, the first indication information includes a fifth indication bit of the third secondary cell; the third secondary cell is a newly added secondary cell; and the fifth indication bit is used to indicate the cell status of the third secondary cell.

[0159] In a possible implementation, the terminal sets the cell states of the secondary cells except the newly added secondary cell to a deactivated state, or keeps the cell states of the other secondary cells unchanged.

[0160] In an embodiment of the present application, the cell status of the newly added secondary cell during cell switching can be indicated by the first indication information, and the terminal sets the cell status of the newly added secondary cell after the switching according to the indication of the first indication information. For the secondary cell that is not newly added after the switching, the terminal can set its cell status to the default deactivated state, or keep the cell status of these secondary cells before the cell switching unchanged.

[0161] In a possible implementation manner, the first indication information includes the sixth indication bit of each secondary cell; the sixth indication bit is used to indicate the cell status of each secondary cell.

[0162] In an embodiment of the present application, for each secondary cell after switching, the network side may also indicate the cell status of these secondary cells through first indication information. During the switching process, the terminal sets the cell status of each secondary cell after switching according to the first indication information.

[0163] Based on the solution shown in the embodiment of the present application, the UE determines whether to update the SCell configuration or keep the current SCell configuration unchanged. For the two situations outlined above, the SCell state determination method includes at least one of the following:

[0164] 1) For a changed SCell, the SCell state is included in the candidate cell configuration and the SCellState IE is reused.

[0165] 2) For a changed SCell, the default state is activated or deactivated.

[0166] 3) The SCells whose lists have not changed enter the deactivated state or remain in the current state (for example, the target configuration and the original configuration are in the same set).

[0167] 4) In the first indication information, 1 bit is used to indicate the SCell state:

[0168] Option 1: Only the newly added SCell status is indicated, and other SCells enter the deactivated state or remain in the current state.

[0169] Option 2: Indicates the status of all SCells in the SCell list.

[0170] In a possible implementation manner, the first indication information includes a seventh indication bit, and the seventh indication bit is used to indicate a field type of a cell index of each secondary cell.

[0171] In a possible implementation manner, the terminal determines the field type of the cell index of each secondary cell in the first indication information according to the length of the current secondary cell list.

[0172] Among them, the first indication information may also include an indicator bit, which is used to indicate whether the bit of the SCell index is a segment field or a long field; or, the UE determines the bitmap field length based on the number of SCells in the current SCell list. For example, there are 5 SCells in the current SCell list, then the bitmap indicating the SCell index is 7 bits.

[0173] In a possible implementation, the first indication information includes an eighth indication bit; the eighth indication bit is used to indicate whether the first indication information includes the status information of the secondary cell, and / or the eighth indication bit is used to indicate the type of the status information of the secondary cell.

[0174] Furthermore, the first indication information may further include an indication bit, where the indication bit is used to indicate whether the SCell state information is included and / or the indication type of the state information.

[0175] To sum up, in the scheme shown in the embodiment of the present application, in the carrier aggregation scenario, the terminal can receive the first indication information sent by the base station through L1 signaling or L2 signaling, and configure the terminal for the main cell and / or secondary cell in combination with the first indication information and the pre-received candidate configuration information. That is to say, during the cell switching process, only L1 signaling or L2 signaling needs to be interacted between the base station and the terminal to realize the configuration of the main cell and / or secondary cell, which saves the signaling interaction between the terminal and the base station, thereby improving the communication efficiency of the system.

[0176] Please refer to Figure 8, which shows a flowchart of a cell configuration method provided by an embodiment of the present application. The method can be interactively executed by a terminal and a base station; wherein the terminal and base station can be the terminal and base station in the network architecture shown in Figure 1. As shown in Figure 8, the method can include the following steps:

[0177] Step 801: The base station sends candidate configuration information to the terminal; the terminal receives the candidate configuration information.

[0178] In the embodiment of the present application, the candidate configuration information sent by the base station to the terminal may be organized as follows:

[0179] The candidate configuration information includes at least one configuration set.

[0180] The above-mentioned configuration set includes a candidate configuration index, a primary cell configuration, and a set of secondary cell configurations associated with the primary cell configuration; or, the above-mentioned configuration set includes a candidate configuration index, at least two primary cell configurations, and the same set of secondary cell configurations associated with at least two primary cell configurations.

[0181] The secondary cell configuration includes a candidate secondary cell list and cell configuration information corresponding to the candidate secondary cell list.

[0182] In the embodiment of the present application, the candidate configuration information can also be set in units of combinations of candidate cell configurations (i.e., the configuration set). Each combination of candidate cell configurations corresponds to a combination of a primary cell configuration and a secondary cell configuration. The network side pre-sets multiple possible combinations of primary cell configurations and secondary cell configurations through the candidate configuration information, so that when the terminal subsequently performs cell handover, it instructs the terminal to select one of the combinations.

[0183] In a possible implementation, the candidate secondary cell list includes a first secondary cell list; the first secondary cell list includes cell indexes of all secondary cells after cell switching;

[0184] Alternatively, the candidate secondary cell list includes a second secondary cell list; the second secondary cell list includes cell indexes of secondary cells that are added, modified and / or released based on the current secondary cell list of the terminal.

[0185] That is to say, in the scheme shown in the embodiment of the present application, in the case of the above-mentioned organization method 2, the network side can indicate the cell configuration of each secondary cell after the cell switching to the terminal through the candidate secondary cell list in the candidate configuration information; or, the network side can also indicate the cell configuration of the secondary cell added, modified and / or released after the cell switching compared to before the switching to the terminal through the candidate secondary cell list in the candidate configuration information.

[0186] In a possible implementation manner of the embodiment of the present application, in the case of the above-mentioned organization mode 2, the UE receives a first RRC message sent by the network, the first RRC message includes a second list, the second list includes one or more candidate configurations, each candidate configuration includes:

[0187] a) candidate cell index;

[0188] b) measurement configuration;

[0189] c) SpCell cell configuration information;

[0190] d) SCell cell configuration information; wherein, the SCell configuration method can be:

[0191] i. delta configuration (ie, partial configuration) based on the current SCell configuration list;

[0192] ii. Complete SCell list and configuration.

[0193] The association method between the SpCell configuration and the SCell configuration may include at least one of the following:

[0194] Method 1: Please refer to FIG9 , which shows an association diagram of an embodiment of the present application. Each SpCell is associated with a set of SCell configurations;

[0195] Method 2: Please refer to Figure 10, an association diagram of an embodiment of the present application. Multiple SpCells are associated with a set of SCell configurations. For example, these candidate SpCells are called Set 1. When the terminal changes the SpCell in Set 1, it does not need to change the SCell configuration.

[0196] Step 802: The base station sends first indication information to the terminal through L1 signaling or L2 signaling; the terminal receives the first indication information.

[0197] In a possible implementation manner, the first indication information includes a cell index of the target primary cell.

[0198] Step 803: The terminal obtains target configuration information of the primary cell and / or secondary cell of the terminal according to the first indication information and the candidate configuration information.

[0199] In the embodiment of the present application, the terminal may obtain a configuration set corresponding to the target primary cell according to the cell index of the target primary cell; and obtain the configuration set corresponding to the target primary cell as target configuration information.

[0200] Among them, the terminal can query the candidate cell index of the primary cell included in each configuration set in the candidate configuration information. When the candidate cell index of the primary cell in a certain configuration set matches the cell index of the above-mentioned target primary cell, the configuration set is determined as the configuration set corresponding to the target primary cell and is used as the target configuration information.

[0201] Step 804: The terminal configures the primary cell and / or secondary cell of the terminal according to the target configuration information and the source configuration information; the source configuration information is used to indicate the current configuration of the primary cell and / or secondary cell of the terminal.

[0202] In a possible implementation, a process in which the terminal configures a primary cell and / or a secondary cell for the terminal according to the target configuration information and the source configuration information may include:

[0203] When the target configuration information and the source configuration information belong to different configuration sets, the target configuration information includes the configuration information of the secondary cell, and the candidate secondary cell list includes the first secondary cell list, the terminal's current secondary cell list and the cell configuration information corresponding to the terminal's current secondary cell list are released, and the secondary cell is configured according to the target configuration information.

[0204] In a possible implementation, a process in which the terminal configures a primary cell and / or a secondary cell for the terminal according to the target configuration information and the source configuration information may include:

[0205] When the target configuration information and the source configuration information belong to different configuration sets, the target configuration information includes configuration information of the secondary cell, and the candidate secondary cell list includes the second secondary cell list, the source configuration information is updated according to the target configuration information to change the secondary cell.

[0206] In a possible implementation, a process in which the terminal configures a primary cell and / or a secondary cell for the terminal according to the target configuration information and the source configuration information may include:

[0207] When the target configuration information and the source configuration information belong to different configuration sets, the target configuration information does not include the configuration information of the secondary cell, and the candidate secondary cell list includes the first secondary cell list, the terminal's current secondary cell list and the cell configuration information corresponding to the terminal's current secondary cell list are retained.

[0208] In a possible implementation, a process in which the terminal configures a primary cell and / or a secondary cell for the terminal according to the target configuration information and the source configuration information may include:

[0209] When the target configuration information and the source configuration information belong to different configuration sets, the target configuration information does not include the configuration information of the secondary cell, and the candidate secondary cell list includes the second secondary cell list, the terminal's current secondary cell list and the cell configuration information corresponding to the terminal's current secondary cell list are released.

[0210] In a possible implementation, configuring a primary cell and / or a secondary cell for a terminal according to the target configuration information and the source configuration information includes:

[0211] In the case that the target configuration information and the source configuration information belong to the same configuration set, the current secondary cell list of the terminal and the cell configuration information corresponding to the current secondary cell list of the terminal are retained.

[0212] In an embodiment of the present application, a UE receives first indication information sent by a network, where the first indication information includes at least a first candidate configuration index; the UE determines a target configuration based on the first candidate configuration index; and based on the target configuration, the UE changes the SCell list, including:

[0213] a) The target configuration and the source configuration do not belong to the same set. If the target configuration includes an SCell configuration, then:

[0214] Based on configuration i, the UE performs add / release / modify operations on the current SCell list;

[0215] Based on configuration ii, the UE releases the current SCell list and configuration, and applies the SCell configuration in the target configuration.

[0216] b) The target configuration and the source configuration do not belong to the same set. If the target configuration does not include the SCell configuration, then:

[0217] Based on configuration i, the UE does not make any changes to the current SCell list and configuration;

[0218] Based on configuration ii, the UE releases the current SCell list and configuration.

[0219] c) If the target configuration and the source configuration are in the same set, the current SCell list and configuration are retained.

[0220] In a possible implementation, the solution shown in the embodiment of the present application further includes:

[0221] For a secondary cell that is changed in the current secondary cell list of the terminal and is determined based on the first indication information, the cell state of the changed secondary cell is set according to the secondary cell state indication information included in the candidate configuration information.

[0222] In a possible implementation, the solution shown in the embodiment of the present application further includes:

[0223] For a secondary cell that is changed in the current secondary cell list of the terminal and is determined based on the first indication information, the cell state of the changed secondary cell is set to an activated state or a deactivated state.

[0224] In a possible implementation, the solution shown in the embodiment of the present application further includes:

[0225] For the secondary cell that has not changed in the current secondary cell list of the terminal and is determined based on the first indication information, and the secondary cell that has changed belongs to the current secondary cell list of the terminal, the cell state of the secondary cell that has not changed is set to a deactivated state, or the cell state of the secondary cell that has not changed is kept unchanged.

[0226] In a possible implementation, the first indication information includes a fifth indication bit of the third secondary cell; the third secondary cell is a newly added secondary cell; and the fifth indication bit is used to indicate the cell status of the third secondary cell.

[0227] In a possible implementation, the terminal sets the cell states of the secondary cells except the newly added secondary cell to a deactivated state, or keeps the cell states of the other secondary cells unchanged.

[0228] In a possible implementation manner, the first indication information includes the sixth indication bit of each secondary cell; the sixth indication bit is used to indicate the cell status of each secondary cell.

[0229] In a possible implementation manner, the first indication information includes a seventh indication bit, and the seventh indication bit is used to indicate a field type of a cell index of each secondary cell.

[0230] In a possible implementation manner, the terminal determines the field type of the cell index of each secondary cell in the first indication information according to the length of the current secondary cell list.

[0231] In a possible implementation, the first indication information includes an eighth indication bit; the eighth indication bit is used to indicate whether the first indication information includes the status information of the secondary cell, and / or the eighth indication bit is used to indicate the type of the status information of the secondary cell.

[0232] Among them, the setting method of the cell status in the embodiment of the present application is similar to the setting method of the cell status in the embodiment shown in Figure 7 above, and will not be repeated here.

[0233] To sum up, in the scheme shown in the embodiment of the present application, in the carrier aggregation scenario, the terminal can receive the first indication information sent by the base station through L1 signaling or L2 signaling, and configure the terminal for the main cell and / or secondary cell in combination with the first indication information and the pre-received candidate configuration information. That is to say, during the cell switching process, only L1 signaling or L2 signaling needs to be interacted between the base station and the terminal to realize the configuration of the main cell and / or secondary cell, which saves the signaling interaction between the terminal and the base station, thereby improving the communication efficiency of the system.

[0234] Among them, the solution disclosed in the embodiment shown in FIG. 7 of the present application and the solution disclosed in the embodiment shown in FIG. 8 can be used alone or in combination.

[0235] That is to say, the solution shown in the above embodiment of the present application can instruct the UE to change at least one of the SpCell and SCell and / or indicate the SCell state through L1 / L2 signaling.

[0236] The method of instructing the UE to change at least one of the SpCell and the SCell includes:

[0237] Solution 1: SCell change (addition / release / modification) information is included in the candidate configuration. Each candidate configuration includes SpCell + one or more SCell configurations. The UE determines the target configuration from multiple candidate configurations by receiving L1 / L2 signaling, and then determines whether to change the SCell configuration.

[0238] Solution 2: SCell change information is included in L1 / L2 signaling.

[0239] The method of indicating the SCell state includes:

[0240] Solution 1: For the changed SCell, the SCell status is included in the candidate cell configuration, and other unchanged SCells enter the deactivated state;

[0241] Solution 2: SCell status information is included in the L1 / L2 signaling indicating cell change;

[0242] Solution 3: The SCell state defaults to activated / deactivated / remains in the current state.

[0243] Please refer to Figure 11, which shows a block diagram of a cell configuration device provided by an embodiment of the present application. The device can be used in a terminal. As shown in Figure 11, the device may include:

[0244] The receiving module 1101 is configured to receive candidate configuration information sent by a base station; the candidate configuration information includes candidate cell configurations;

[0245] The receiving module 1101 is further configured to receive first indication information sent by the base station through L1 signaling or L2 signaling; the first indication information is used to indicate a change to the primary cell and / or secondary cell of the terminal;

[0246] The configuration module 1102 is configured to configure a primary cell and / or a secondary cell for the terminal according to the first indication information and the candidate configuration information.

[0247] In a possible implementation, the candidate configuration information includes: at least one candidate cell configuration;

[0248] The candidate cell configuration includes: a candidate cell index, a measurement configuration, and candidate cell configuration information.

[0249] In a possible implementation, the candidate cell configuration information includes at least one of the following information:

[0250] Cell ID, cell radio network temporary identifier C-RNTI, random access channel RACH resources, system information, timing advance group TAG ID, uplink bandwidth configuration, downlink bandwidth configuration.

[0251] In a possible implementation, the first indication information is one of the following three signalings:

[0252] The first indication signaling is used to indicate that a primary cell of the terminal is changed;

[0253] The second indication signaling is used to instruct to change the secondary cell of the terminal;

[0254] Alternatively, the third indication signaling is used to indicate a change to the primary cell and the secondary cell of the terminal.

[0255] In one possible implementation, the first indication information includes a first identification bit, where the first identification bit is used to indicate one of the following situations:

[0256] The first indication information is used to indicate a primary cell for the terminal;

[0257] The first indication information is used to instruct to change the secondary cell of the terminal;

[0258] Alternatively, the first indication information is used to indicate a change in a primary cell and a secondary cell of the terminal.

[0259] In a possible implementation manner, the first indication information includes a first indication bit of a first secondary cell;

[0260] The first indication bit is used to indicate that a change occurs in the first secondary cell.

[0261] In a possible implementation manner, the first indication information includes a second indication bit of the second secondary cell;

[0262] The second indication bit is used to indicate that the second secondary cell does not change.

[0263] In a possible implementation, the first indication information further includes a third indication bit of the first secondary cell; the third indication bit is used to indicate a change type of the first secondary cell; and the change type is addition, release, or replacement.

[0264] In a possible implementation, when the third indicator bit is 0, the third indicator bit is used to indicate that the change type of the first secondary cell is release.

[0265] In a possible implementation, when the third indicator bit is non-zero, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement, and the third indicator bit is used to indicate the first candidate cell index;

[0266] The candidate cell corresponding to the first candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

[0267] In a possible implementation, when the third indicator bit is 1, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement; and the first indication information further includes a second candidate cell index;

[0268] The candidate cell corresponding to the second candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

[0269] In a possible implementation, the first indication information further includes a fourth indication bit of each secondary cell that is replaced or released; the fourth indication bit is used to indicate a cell index of each secondary cell.

[0270] In a possible implementation, the candidate configuration information includes at least one configuration set;

[0271] The configuration set includes a candidate configuration index, a primary cell configuration, and a set of secondary cell configurations associated with the primary cell configuration;

[0272] Alternatively, the configuration set includes a candidate configuration index, at least two primary cell configurations, and the same set of secondary cell configurations associated with the at least two primary cell configurations;

[0273] The secondary cell configuration includes a candidate secondary cell list and cell configuration information corresponding to the candidate secondary cell list.

[0274] In a possible implementation, the candidate secondary cell list includes a first secondary cell list; the first secondary cell list includes cell indexes of all secondary cells after cell switching;

[0275] Alternatively, the candidate secondary cell list includes a second secondary cell list; the second secondary cell list includes cell indexes of secondary cells that are added, modified and / or released based on a current secondary cell list of the terminal.

[0276] In a possible implementation, the configuration module 1102 is configured to:

[0277] Acquire target configuration information of the primary cell and / or the secondary cell of the terminal according to the first indication information and the candidate configuration information;

[0278] The primary cell and / or secondary cell are configured for the terminal according to the target configuration information and the source configuration information; the source configuration information is used to indicate the current configuration status of the primary cell and / or secondary cell of the terminal.

[0279] In a possible implementation, the first indication information includes a cell index of a target primary cell; the configuration module 1102 is configured to:

[0280] Acquire, according to the cell index of the target primary cell, the configuration set corresponding to the target primary cell;

[0281] The configuration set corresponding to the target primary cell is acquired as the target configuration information.

[0282] In a possible implementation, the configuration module 1102 is configured to:

[0283] When the target configuration information and the source configuration information belong to different configuration sets, the target configuration information includes the configuration information of the secondary cell, and the candidate secondary cell list includes the first secondary cell list, release the current secondary cell list of the terminal and the cell configuration information corresponding to the current secondary cell list of the terminal, and configure the secondary cell according to the target configuration information.

[0284] In one possible implementation, the configuration module 1102 is used to update the source configuration information according to the target configuration information to change the secondary cell when the target configuration information and the source configuration information belong to different configuration sets, the target configuration information includes the configuration information of the secondary cell, and the candidate secondary cell list includes the second secondary cell list.

[0285] In one possible implementation, the configuration module 1102 is used to retain the current secondary cell list of the terminal and the cell configuration information corresponding to the current secondary cell list of the terminal when the target configuration information and the source configuration information belong to different configuration sets, the target configuration information does not include the configuration information of the secondary cell, and the candidate secondary cell list includes the first secondary cell list.

[0286] In one possible implementation, the configuration module 1102 is used to release the terminal's current secondary cell list and the cell configuration information corresponding to the terminal's current secondary cell list when the target configuration information and the source configuration information belong to different configuration sets, the target configuration information does not include the configuration information of the secondary cell, and the candidate secondary cell list includes the second secondary cell list.

[0287] In a possible implementation, the configuration module 1102 is configured to retain the current secondary cell list of the terminal and the cell configuration information corresponding to the current secondary cell list of the terminal when the target configuration information and the source configuration information belong to the same configuration set.

[0288] In a possible implementation, the apparatus further includes:

[0289] The first state setting module is configured to set the cell state of the secondary cell that has changed in the current secondary cell list of the terminal, determined based on the first indication information, according to the secondary cell state indication information included in the candidate configuration information.

[0290] In a possible implementation, the apparatus further includes:

[0291] The second state setting module is configured to set the cell state of the changed secondary cell in the current secondary cell list of the terminal, which is determined based on the first indication information, to an activated state or a deactivated state.

[0292] In a possible implementation, the apparatus further includes:

[0293] The third state setting module is used to set the cell state of the unchanged secondary cell in the current secondary cell list of the terminal determined based on the first indication information to a deactivated state, or to keep the cell state of the unchanged secondary cell unchanged.

[0294] In a possible implementation, the first indication information includes a fifth indication bit of a third secondary cell; the third secondary cell is a newly added secondary cell; and the fifth indication bit is used to indicate a cell status of the third secondary cell.

[0295] In a possible implementation, the apparatus further includes:

[0296] The fourth state setting module is configured to set the cell states of the secondary cells except the newly added secondary cell to a deactivated state, or to keep the cell states of the other secondary cells unchanged.

[0297] In a possible implementation manner, the first indication information includes a sixth indication bit of each secondary cell; the sixth indication bit is used to indicate the cell status of each secondary cell.

[0298] In a possible implementation manner, the first indication information includes a seventh indication bit, and the seventh indication bit is used to indicate a field type of a cell index of each secondary cell.

[0299] In a possible implementation, the apparatus further includes:

[0300] The field type determining module is configured to determine the field type of the cell index of each secondary cell in the first indication information according to the length of the current secondary cell list of the terminal.

[0301] In a possible implementation, the first indication information includes an eighth indication bit; the eighth indication bit is used to indicate whether the first indication information includes status information of the secondary cell, and / or the eighth indication bit is used to indicate the type of status information of the secondary cell.

[0302] To sum up, in the scheme shown in the embodiment of the present application, in the carrier aggregation scenario, the terminal can receive the first indication information sent by the base station through L1 signaling or L2 signaling, and configure the terminal for the main cell and / or secondary cell in combination with the first indication information and the pre-received candidate configuration information. That is to say, during the cell switching process, only L1 signaling or L2 signaling needs to be interacted between the base station and the terminal to realize the configuration of the main cell and / or secondary cell, which saves the signaling interaction between the terminal and the base station, thereby improving the communication efficiency of the system.

[0303] Please refer to Figure 12, which shows a block diagram of a cell configuration device provided by an embodiment of the present application. The device can be used in a base station. As shown in Figure 12, the device may include:

[0304] The sending module 1201 is configured to send candidate configuration information to the terminal; the candidate configuration information includes candidate cell configurations;

[0305] The sending module 1201 is also used to send first indication information to the terminal through L1 signaling or L2 signaling; the first indication information is used to indicate a change to the primary cell and / or secondary cell of the terminal, so that the terminal configures the primary cell and / or secondary cell of the terminal according to the first indication information and the candidate configuration information.

[0306] In a possible implementation, the candidate configuration information includes: at least one candidate cell configuration;

[0307] The candidate cell configuration includes: a candidate cell index, a measurement configuration, and candidate cell configuration information.

[0308] In a possible implementation, the candidate cell configuration information includes at least one of the following information:

[0309] Cell ID, cell radio network temporary identifier C-RNTI, random access channel RACH resources, system information, timing advance group TAG ID, uplink bandwidth configuration, downlink bandwidth configuration.

[0310] In a possible implementation, the first indication information is one of the following three signalings:

[0311] The first indication signaling is used to indicate that a primary cell of the terminal is changed;

[0312] The second indication signaling is used to instruct to change the secondary cell of the terminal;

[0313] Alternatively, the third indication signaling is used to indicate a change to the primary cell and the secondary cell of the terminal.

[0314] In one possible implementation, the first indication information includes a first identification bit, where the first identification bit is used to indicate one of the following situations:

[0315] The first indication information is used to indicate a primary cell for the terminal;

[0316] The first indication information is used to instruct to change the secondary cell of the terminal;

[0317] Alternatively, the first indication information is used to indicate a change in a primary cell and a secondary cell of the terminal.

[0318] In a possible implementation manner, the first indication information includes a first indication bit of a first secondary cell;

[0319] The first indication bit is used to indicate that a change occurs in the first secondary cell.

[0320] In a possible implementation manner, the first indication information includes a second indication bit of the second secondary cell;

[0321] The second indication bit is used to indicate that the second secondary cell does not change.

[0322] In a possible implementation, the first indication information further includes a third indication bit of the first secondary cell; the third indication bit is used to indicate a change type of the first secondary cell; and the change type is addition, release, or replacement.

[0323] In a possible implementation, when the third indicator bit is 0, the third indicator bit is used to indicate that the change type of the first secondary cell is release.

[0324] In a possible implementation, when the third indicator bit is non-zero, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement, and the third indicator bit is used to indicate the first candidate cell index;

[0325] The candidate cell corresponding to the first candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

[0326] In a possible implementation, when the third indicator bit is 1, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement; and the first indication information further includes a second candidate cell index;

[0327] The candidate cell corresponding to the second candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

[0328] In a possible implementation, the first indication information further includes a fourth indication bit of each secondary cell that is replaced or released; the fourth indication bit is used to indicate a cell index of each secondary cell.

[0329] In a possible implementation, the candidate configuration information includes at least one configuration set;

[0330] The configuration set includes a candidate configuration index, a primary cell configuration, and a set of secondary cell configurations associated with the primary cell configuration;

[0331] Alternatively, the configuration set includes a candidate configuration index, at least two primary cell configurations, and the same set of secondary cell configurations associated with the at least two primary cell configurations;

[0332] The secondary cell configuration includes a candidate secondary cell list and cell configuration information corresponding to the candidate secondary cell list.

[0333] In a possible implementation, the candidate secondary cell list includes a first secondary cell list; the first secondary cell list includes cell indexes of all secondary cells after cell switching;

[0334] Alternatively, the candidate secondary cell list includes a second secondary cell list; the second secondary cell list includes cell indexes of secondary cells that are added, modified and / or released based on a current secondary cell list of the terminal.

[0335] In a possible implementation manner, the first indication information includes a cell index of a target primary cell.

[0336] In a possible implementation manner, the candidate configuration information further includes secondary cell state indication information; the secondary cell state indication information is used to indicate the cell state of the changed secondary cell.

[0337] In a possible implementation, the first indication information includes a fifth indication bit of a third secondary cell; the third secondary cell is a newly added secondary cell; and the fifth indication bit is used to indicate a cell status of the third secondary cell.

[0338] In a possible implementation manner, the first indication information includes a sixth indication bit of each secondary cell; the sixth indication bit is used to indicate the cell status of each secondary cell.

[0339] In a possible implementation manner, the first indication information includes a seventh indication bit, and the seventh indication bit is used to indicate a field type of a cell index of each secondary cell.

[0340] In a possible implementation, the first indication information includes an eighth indication bit; the eighth indication bit is used to indicate whether the first indication information includes status information of the secondary cell, and / or the eighth indication bit is used to indicate the type of status information of the secondary cell.

[0341] To sum up, in the scheme shown in the embodiment of the present application, in the carrier aggregation scenario, the terminal can receive the first indication information sent by the base station through L1 signaling or L2 signaling, and configure the terminal for the main cell and / or secondary cell in combination with the first indication information and the pre-received candidate configuration information. That is to say, during the cell switching process, only L1 signaling or L2 signaling needs to be interacted between the base station and the terminal to realize the configuration of the main cell and / or secondary cell, which saves the signaling interaction between the terminal and the base station, thereby improving the communication efficiency of the system.

[0342] It should be noted that the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions. In actual applications, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0343] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0344] Please refer to FIG13 , which shows a schematic diagram of the structure of a computer device 1313 provided in one embodiment of the present application. The computer device 1313 may include: a processor 1301 , a receiver 1302 , a transmitter 1303 , a memory 1304 , and a bus 1305 .

[0345] The processor 1301 includes one or more processing cores. The processor 1301 executes various functional applications and information processing by running software programs and modules.

[0346] The receiver 1302 and the transmitter 1303 may be implemented as a communication component, which may be a communication chip, which may also be called a transceiver.

[0347] The memory 1304 is connected to the processor 1301 via a bus 1305 .

[0348] The memory 1304 may be used to store a computer program, and the processor 1301 may be used to execute the computer program to implement the various steps performed by the terminal in the above method embodiment.

[0349] In addition, the memory 1304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disk or optical disk, electrically erasable programmable read-only memory, erasable programmable read-only memory, static access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0350] The above-mentioned computer device can be implemented as a terminal or a base station in the above-mentioned various method embodiments.

[0351] In an exemplary embodiment, the computer device includes a processor, a memory, and a transceiver (the transceiver may include a receiver and a transmitter, the receiver is used to receive information, and the transmitter is used to send information);

[0352] When the above-mentioned computer device is implemented as a terminal in each of the above-mentioned method embodiments,

[0353] The transceiver is configured to receive candidate configuration information sent by a base station; the candidate configuration information includes a candidate cell configuration; receive first indication information sent by the base station through L1 signaling or L2 signaling; the first indication information is used to indicate a change to a primary cell and / or a secondary cell of the terminal;

[0354] The processor is configured to configure a primary cell and / or a secondary cell for the terminal according to the first indication information and the candidate configuration information.

[0355] Among them, the steps performed by the above-mentioned transceiver and processor can refer to all or part of the steps performed by the terminal in the embodiments shown in Figures 4, 7 or 8 above, and will not be repeated here.

[0356] When the above-mentioned computer device is implemented as the base station in each of the above-mentioned method embodiments, the transceiver is used to send candidate configuration information to the terminal; the candidate configuration information includes candidate cell configuration; first indication information is sent to the terminal through L1 signaling or L2 signaling; the first indication information is used to indicate a change to the primary cell and / or secondary cell of the terminal, so that the terminal configures the primary cell and / or secondary cell of the terminal according to the first indication information and the candidate configuration information.

[0357] Among them, the steps executed by the above-mentioned transceiver and processor can refer to all or part of the steps executed by the base station in the embodiments shown in Figures 5, 7 or 8 above, and will not be repeated here.

[0358] An embodiment of the present application also provides a computer-readable storage medium, which stores a computer program. The computer program is loaded and executed by a processor to implement the various steps performed by the terminal or base station in the cell configuration method shown in Figures 4, 5, 7 or 8 above.

[0359] The present application also provides a computer program product or computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform each step performed by a terminal or a base station in the cell configuration method shown in Figures 4, 5, 7, or 8.

[0360] The present application also provides a computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform each step performed by a terminal or a base station in the cell configuration method shown in Figures 4, 5, 7, or 8.

[0361] The present application also provides a chip, which is used in a terminal. The chip can execute each step performed by the terminal or the base station in the cell configuration method shown in Figures 4, 5, 7 or 8 above.

[0362] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0363] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A cell configuration method, characterized in that: The method is executed by a terminal, and includes: receiving candidate configuration information sent by a base station; the candidate configuration information includes candidate cell configurations; receiving first indication information sent by the base station through L1 signaling or L2 signaling, wherein the first indication information is used to indicate a change to a primary cell and / or a secondary cell of the terminal; The primary cell and / or secondary cell is configured for the terminal according to the first indication information and the candidate configuration information.

2. The method according to claim 1, characterized in that The candidate configuration information includes: at least one candidate cell configuration; The candidate cell configuration includes: a candidate cell index, a measurement configuration, and candidate cell configuration information.

3. The method according to claim 2, characterized in that The candidate cell configuration information includes at least one of the following information: Cell ID, cell radio network temporary identifier C-RNTI, random access channel RACH resources, system information, timing advance group TAG ID, uplink bandwidth configuration, downlink bandwidth configuration.

4. The method according to any one of claims 2 or 3, characterized in that The first indication information is one of the following three signalings: The first indication signaling is used to indicate that a primary cell of the terminal is changed; The second indication signaling is used to instruct to change the secondary cell of the terminal; Alternatively, the third indication signaling is used to indicate a change to the primary cell and the secondary cell of the terminal.

5. The method according to any one of claims 2 or 3, characterized in that: The first indication information includes a first flag, where the first flag is used to indicate one of the following situations: The first indication information is used to indicate a primary cell for the terminal; The first indication information is used to instruct to change the secondary cell of the terminal; Alternatively, the first indication information is used to indicate a change in a primary cell and a secondary cell of the terminal.

6. The method according to any one of claims 2 to 5, characterized in that: The first indication information includes a first indication bit of a first secondary cell; The first indication bit is used to indicate that a change occurs in the first secondary cell.

7. The method according to any one of claims 2 to 6, characterized in that: The first indication information includes a second indication bit of a second secondary cell; The second indication bit is used to indicate that the second secondary cell does not change.

8. The method according to claim 6, characterized in that The first indication information further includes a third indication bit of the first secondary cell; the third indication bit is used to indicate a change type of the first secondary cell; the change type is addition, release, or replacement.

9. The method according to claim 8, characterized in that When the third indicator bit is 0, the third indicator bit is used to indicate that the change type of the first secondary cell is release.

10. The method according to claim 8 or 9, characterized in that When the third indicator bit is non-zero, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement, and the third indicator bit is used to indicate the first candidate cell index; The candidate cell corresponding to the first candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

11. The method according to claim 8 or 9, characterized in that When the third indicator bit is 1, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement; and the first indication information further includes a second candidate cell index; The candidate cell corresponding to the second candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

12. The method according to any one of claims 2 to 11, characterized in that: The first indication information further includes a fourth indication bit of each secondary cell that is replaced or released; the fourth indication bit is used to indicate the cell index of each secondary cell.

13. The method according to claim 1, wherein The candidate configuration information includes at least one configuration set; The configuration set includes a candidate configuration index, a primary cell configuration, and a set of secondary cell configurations associated with the primary cell configuration; Alternatively, the configuration set includes a candidate configuration index, at least two primary cell configurations, and the same set of secondary cell configurations associated with the at least two primary cell configurations; The secondary cell configuration includes a candidate secondary cell list and cell configuration information corresponding to the candidate secondary cell list.

14. The method according to claim 13, characterized in that The candidate secondary cell list includes a first secondary cell list; the first secondary cell list includes cell indexes of all secondary cells after cell switching; Alternatively, the candidate secondary cell list includes a second secondary cell list; the second secondary cell list includes cell indexes of secondary cells that are added, modified and / or released based on a current secondary cell list of the terminal.

15. The method according to claim 14, characterized in that The configuring the primary cell and / or the secondary cell for the terminal according to the first indication information and the candidate configuration information includes: Acquire target configuration information of the primary cell and / or the secondary cell of the terminal according to the first indication information and the candidate configuration information; The primary cell and / or secondary cell are configured for the terminal according to the target configuration information and the source configuration information; the source configuration information is used to indicate the current configuration status of the primary cell and / or secondary cell of the terminal.

16. The method according to claim 15, characterized in that The first indication information includes a cell index of a target primary cell; The acquiring, according to the first indication information and the candidate configuration information, target configuration information of the primary cell and / or the secondary cell of the terminal includes: Acquire, according to the cell index of the target primary cell, the configuration set corresponding to the target primary cell; The configuration set corresponding to the target primary cell is acquired as the target configuration information.

17. The method according to claim 15 or 16, characterized in that The configuring a primary cell and / or a secondary cell for the terminal according to the target configuration information and the source configuration information includes: When the target configuration information and the source configuration information belong to different configuration sets, the target configuration information includes the configuration information of the secondary cell, and the candidate secondary cell list includes the first secondary cell list, release the current secondary cell list of the terminal and the cell configuration information corresponding to the current secondary cell list of the terminal, and configure the secondary cell according to the target configuration information.

18. The method according to claim 15 or 16, characterized in that The configuring a primary cell and / or a secondary cell for the terminal according to the target configuration information and the source configuration information includes: When the target configuration information and the source configuration information belong to different configuration sets, the target configuration information includes configuration information of the secondary cell, and the candidate secondary cell list includes the second secondary cell list, the source configuration information is updated according to the target configuration information to change the secondary cell.

19. The method according to claim 15 or 16, characterized in that The configuring a primary cell and / or a secondary cell for the terminal according to the target configuration information and the source configuration information includes: When the target configuration information and the source configuration information belong to different configuration sets, the target configuration information does not include the configuration information of the secondary cell, and the candidate secondary cell list includes the first secondary cell list, the current secondary cell list of the terminal and the cell configuration information corresponding to the current secondary cell list of the terminal are retained.

20. The method according to claim 15 or 16, characterized in that The configuring a primary cell and / or a secondary cell for the terminal according to the target configuration information and the source configuration information includes: When the target configuration information and the source configuration information belong to different configuration sets, the target configuration information does not include the configuration information of the secondary cell, and the candidate secondary cell list includes the second secondary cell list, release the current secondary cell list of the terminal and the cell configuration information corresponding to the current secondary cell list of the terminal.

21. The method according to claim 15 or 16, characterized in that The configuring a primary cell and / or a secondary cell for the terminal according to the target configuration information and the source configuration information includes: In a case where the target configuration information and the source configuration information belong to the same configuration set, the current secondary cell list of the terminal and the cell configuration information corresponding to the current secondary cell list of the terminal are retained.

22. The method according to any one of claims 1 to 21, characterized in that The method further comprises: For a secondary cell that is changed in the current secondary cell list of the terminal and is determined based on the first indication information, the cell state of the changed secondary cell is set according to the secondary cell state indication information included in the candidate configuration information.

23. The method according to any one of claims 1 to 21, characterized in that The method further comprises: For a secondary cell that is changed in the current secondary cell list of the terminal and is determined based on the first indication information, the cell state of the changed secondary cell is set to an activated state or a deactivated state.

24. The method according to any one of claims 1 to 21, characterized in that The method further comprises: For the unchanged secondary cell in the current secondary cell list of the terminal determined based on the first indication information, the cell state of the unchanged secondary cell is set to a deactivated state, or the cell state of the unchanged secondary cell is kept unchanged.

25. The method according to any one of claims 1 to 21, characterized in that The first indication information includes a fifth indication bit of a third secondary cell; the third secondary cell is a newly added secondary cell; and the fifth indication bit is used to indicate a cell status of the third secondary cell.

26. The method according to claim 25, characterized in that The method further comprises: The cell states of the other secondary cells except the newly added secondary cell are set to a deactivated state, or the cell states of the other secondary cells are kept unchanged.

27. The method according to any one of claims 1 to 21, characterized in that The first indication information includes a sixth indication bit of each secondary cell; the sixth indication bit is used to indicate the cell status of each secondary cell.

28. The method according to any one of claims 1 to 27, characterized in that The first indication information includes a seventh indication bit, and the seventh indication bit is used to indicate a field type of a cell index of each secondary cell.

29. The method according to any one of claims 1 to 27, characterized in that The method further comprises: The field type of the cell index of each secondary cell in the first indication information is determined according to the length of the current secondary cell list of the terminal.

30. The method according to any one of claims 1 to 29, characterized in that The first indication information includes an eighth indication bit; the eighth indication bit is used to indicate whether the first indication information includes the status information of the secondary cell, and / or the eighth indication bit is used to indicate the type of the status information of the secondary cell.

31. A cell configuration method, characterized in that: The method is performed by a base station, and includes: Sending candidate configuration information to the terminal; the candidate configuration information includes candidate cell configuration; The first indication information is sent to the terminal through L1 signaling or L2 signaling; the first indication information is used to indicate a change to the primary cell and / or secondary cell of the terminal, so that the terminal configures the primary cell and / or secondary cell of the terminal according to the first indication information and the candidate configuration information.

32. The method according to claim 31, wherein The candidate configuration information includes: at least one candidate cell configuration; The candidate cell configuration includes: a candidate cell index, a measurement configuration, and candidate cell configuration information.

33. The method according to claim 32, characterized in that The candidate cell configuration information includes at least one of the following information: Cell ID, cell radio network temporary identifier C-RNTI, random access channel RACH resources, system information, timing advance group TAG ID, uplink bandwidth configuration, downlink bandwidth configuration.

34. The method according to any one of claims 32 or 33, characterized in that The first indication information is one of the following three signalings: The first indication signaling is used to indicate that a primary cell of the terminal is changed; The second indication signaling is used to instruct to change the secondary cell of the terminal; Alternatively, the third indication signaling is used to indicate a change to the primary cell and the secondary cell of the terminal.

35. The method according to any one of claims 32 or 33, characterized in that The first indication information includes a first flag, where the first flag is used to indicate one of the following situations: The first indication information is used to indicate a primary cell for the terminal; The first indication information is used to instruct to change the secondary cell of the terminal; Alternatively, the first indication information is used to indicate a change in a primary cell and a secondary cell of the terminal.

36. The method according to any one of claims 32 to 35, characterized in that The first indication information includes a first indication bit of a first secondary cell; The first indication bit is used to indicate that a change occurs in the first secondary cell.

37. The method according to any one of claims 32 to 36, characterized in that The first indication information includes a second indication bit of a second secondary cell; The second indication bit is used to indicate that the second secondary cell does not change.

38. The method according to claim 36, characterized in that The first indication information further includes a third indication bit of the first secondary cell; the third indication bit is used to indicate a change type of the first secondary cell; the change type is addition, release, or replacement.

39. The method according to claim 38, characterized in that When the third indicator bit is 0, the third indicator bit is used to indicate that the change type of the first secondary cell is release.

40. The method according to claim 38 or 39, characterized in that When the third indicator bit is non-zero, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement, and the third indicator bit is used to indicate the first candidate cell index; The candidate cell corresponding to the first candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

41. The method according to claim 38 or 39, characterized in that When the third indicator bit is 1, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement; and the first indication information further includes a second candidate cell index; The candidate cell corresponding to the second candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

42. The method according to any one of claims 32 to 41, characterized in that The first indication information further includes a fourth indication bit of each secondary cell that is replaced or released; the fourth indication bit is used to indicate the cell index of each secondary cell.

43. The method according to claim 31, wherein The candidate configuration information includes at least one configuration set; The configuration set includes a candidate configuration index, a primary cell configuration, and a set of secondary cell configurations associated with the primary cell configuration; Alternatively, the configuration set includes a candidate configuration index, at least two primary cell configurations, and the same set of secondary cell configurations associated with the at least two primary cell configurations; The secondary cell configuration includes a candidate secondary cell list and cell configuration information corresponding to the candidate secondary cell list.

44. The method according to claim 43, wherein The candidate secondary cell list includes a first secondary cell list; the first secondary cell list includes cell indexes of all secondary cells after cell switching; Alternatively, the candidate secondary cell list includes a second secondary cell list; the second secondary cell list includes cell indexes of secondary cells that are added, modified and / or released based on a current secondary cell list of the terminal.

45. The method according to claim 44, wherein The first indication information includes a cell index of a target primary cell.

46. ​​The method according to any one of claims 31 to 45, characterized in that The candidate configuration information further includes secondary cell state indication information; the secondary cell state indication information is used to indicate the cell state of the changed secondary cell.

47. The method according to any one of claims 31 to 45, characterized in that The first indication information includes a fifth indication bit of a third secondary cell; the third secondary cell is a newly added secondary cell; and the fifth indication bit is used to indicate a cell status of the third secondary cell.

48. The method according to any one of claims 31 to 45, characterized in that The first indication information includes a sixth indication bit of each secondary cell; the sixth indication bit is used to indicate the cell status of each secondary cell.

49. The method according to any one of claims 31 to 48, characterized in that The first indication information includes a seventh indication bit, and the seventh indication bit is used to indicate a field type of a cell index of each secondary cell.

50. The method according to any one of claims 31 to 49, characterized in that The first indication information includes an eighth indication bit; the eighth indication bit is used to indicate whether the first indication information includes the status information of the secondary cell, and / or the eighth indication bit is used to indicate the type of the status information of the secondary cell.

51. A cell configuration device, characterized in that: The device comprises: A receiving module, configured to receive candidate configuration information sent by a base station; the candidate configuration information includes candidate cell configurations; The receiving module is further configured to receive first indication information sent by the base station through L1 signaling or L2 signaling; the first indication information is used to instruct a change to the primary cell and / or secondary cell of the terminal; A configuration module is used to configure the primary cell and / or the secondary cell for the terminal according to the first indication information and the candidate configuration information.

52. The device according to claim 51, characterized in that The candidate configuration information includes: at least one candidate cell configuration; The candidate cell configuration includes: a candidate cell index, a measurement configuration, and candidate cell configuration information.

53. The device according to claim 52, characterized in that The candidate cell configuration information includes at least one of the following information: Cell ID, cell radio network temporary identifier C-RNTI, random access channel RACH resources, system information, timing advance group TAG ID, uplink bandwidth configuration, downlink bandwidth configuration.

54. The device according to any one of claims 52 or 53, characterized in that The first indication information is one of the following three signalings: The first indication signaling is used to indicate that a primary cell of the terminal is changed; The second indication signaling is used to instruct to change the secondary cell of the terminal; Alternatively, the third indication signaling is used to indicate a change to the primary cell and the secondary cell of the terminal.

55. The device according to any one of claims 52 or 53, characterized in that The first indication information includes a first flag, where the first flag is used to indicate one of the following situations: The first indication information is used to indicate a primary cell for the terminal; The first indication information is used to instruct to change the secondary cell of the terminal; Alternatively, the first indication information is used to indicate a change in a primary cell and a secondary cell of the terminal.

56. The device according to any one of claims 52 to 55, characterized in that The first indication information includes a first indication bit of a first secondary cell; The first indication bit is used to indicate that a change occurs in the first secondary cell.

57. The device according to any one of claims 52 to 56, characterized in that The first indication information includes a second indication bit of a second secondary cell; The second indication bit is used to indicate that the second secondary cell does not change.

58. The device according to claim 56, characterized in that The first indication information further includes a third indication bit of the first secondary cell; the third indication bit is used to indicate a change type of the first secondary cell; the change type is addition, release, or replacement.

59. The device according to claim 58, characterized in that When the third indicator bit is 0, the third indicator bit is used to indicate that the change type of the first secondary cell is release.

60. The device according to claim 58 or 59, characterized in that When the third indicator bit is non-zero, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement, and the third indicator bit is used to indicate the first candidate cell index; The candidate cell corresponding to the first candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

61. The device according to claim 58 or 59, characterized in that When the third indicator bit is 1, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement; and the first indication information further includes a second candidate cell index; The candidate cell corresponding to the second candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

62. The device according to any one of claims 52 to 61, characterized in that The first indication information further includes a fourth indication bit of each secondary cell that is replaced or released; the fourth indication bit is used to indicate the cell index of each secondary cell.

63. The device according to claim 51, characterized in that The candidate configuration information includes at least one configuration set; The configuration set includes a candidate configuration index, a primary cell configuration, and a set of secondary cell configurations associated with the primary cell configuration; Alternatively, the configuration set includes a candidate configuration index, at least two primary cell configurations, and the same set of secondary cell configurations associated with the at least two primary cell configurations; The secondary cell configuration includes a candidate secondary cell list and cell configuration information corresponding to the candidate secondary cell list.

64. The device according to claim 63, characterized in that The candidate secondary cell list includes a first secondary cell list; the first secondary cell list includes cell indexes of all secondary cells after cell switching; Alternatively, the candidate secondary cell list includes a second secondary cell list; the second secondary cell list includes cell indexes of secondary cells that are added, modified and / or released based on a current secondary cell list of the terminal.

65. The device according to claim 64, characterized in that The configuration module is used to: Acquire target configuration information of the primary cell and / or the secondary cell of the terminal according to the first indication information and the candidate configuration information; The primary cell and / or secondary cell are configured for the terminal according to the target configuration information and the source configuration information; the source configuration information is used to indicate the current configuration status of the primary cell and / or secondary cell of the terminal.

66. The device according to claim 65, characterized in that The first indication information includes a cell index of a target primary cell; the configuration module is configured to: Acquire, according to the cell index of the target primary cell, the configuration set corresponding to the target primary cell; The configuration set corresponding to the target primary cell is acquired as the target configuration information.

67. The device according to claim 65 or 66, characterized in that The configuration module is used to: When the target configuration information and the source configuration information belong to different configuration sets, the target configuration information includes the configuration information of the secondary cell, and the candidate secondary cell list includes the first secondary cell list, release the current secondary cell list of the terminal and the cell configuration information corresponding to the current secondary cell list of the terminal, and configure the secondary cell according to the target configuration information.

68. The device according to claim 65 or 66, characterized in that The configuration module is configured to update the source configuration information according to the target configuration information to change the secondary cell when the target configuration information and the source configuration information belong to different configuration sets, the target configuration information includes the configuration information of the secondary cell, and the candidate secondary cell list includes the second secondary cell list.

69. The device according to claim 65 or 66, characterized in that The configuration module is configured to retain the current secondary cell list of the terminal and the cell configuration information corresponding to the current secondary cell list of the terminal when the target configuration information and the source configuration information belong to different configuration sets, the target configuration information does not include the configuration information of the secondary cell, and the candidate secondary cell list includes the first secondary cell list.

70. The device according to claim 65 or 66, characterized in that The configuration module is configured to release the terminal's current secondary cell list and the cell configuration information corresponding to the terminal's current secondary cell list when the target configuration information and the source configuration information belong to different configuration sets, the target configuration information does not include the configuration information of the secondary cell, and the candidate secondary cell list includes the second secondary cell list.

71. The device according to claim 65 or 66, characterized in that The configuration module is configured to retain the current secondary cell list of the terminal and the cell configuration information corresponding to the current secondary cell list of the terminal when the target configuration information and the source configuration information belong to the same configuration set.

72. The device according to any one of claims 51 to 71, characterized in that The device further comprises: The first state setting module is configured to set the cell state of the secondary cell that has changed in the current secondary cell list of the terminal, determined based on the first indication information, according to the secondary cell state indication information included in the candidate configuration information.

73. The device according to any one of claims 51 to 71, characterized in that The device further comprises: The second state setting module is configured to set the cell state of the changed secondary cell in the current secondary cell list of the terminal, which is determined based on the first indication information, to an activated state or a deactivated state.

74. The device according to any one of claims 51 to 71, characterized in that The device further comprises: The third state setting module is used to set the cell state of the unchanged secondary cell in the current secondary cell list of the terminal determined based on the first indication information to a deactivated state, or to keep the cell state of the unchanged secondary cell unchanged.

75. The device according to any one of claims 51 to 71, characterized in that The first indication information includes a fifth indication bit of a third secondary cell; the third secondary cell is a newly added secondary cell; and the fifth indication bit is used to indicate a cell status of the third secondary cell.

76. The device according to claim 75, characterized in that The device further comprises: The fourth state setting module is configured to set the cell states of the secondary cells except the newly added secondary cell to a deactivated state, or to keep the cell states of the other secondary cells unchanged.

77. The device according to any one of claims 51 to 71, characterized in that The first indication information includes a sixth indication bit of each secondary cell; the sixth indication bit is used to indicate the cell status of each secondary cell.

78. The device according to any one of claims 51 to 77, characterized in that The first indication information includes a seventh indication bit, and the seventh indication bit is used to indicate a field type of a cell index of each secondary cell.

79. The device according to any one of claims 51 to 77, characterized in that The device further comprises: The field type determining module is configured to determine the field type of the cell index of each secondary cell in the first indication information according to the length of the current secondary cell list of the terminal.

80. The device according to any one of claims 51 to 79, characterized in that The first indication information includes an eighth indication bit; the eighth indication bit is used to indicate whether the first indication information includes the status information of the secondary cell, and / or the eighth indication bit is used to indicate the type of the status information of the secondary cell.

81. A cell configuration device, characterized in that: The device comprises: A sending module, configured to send candidate configuration information to a terminal; the candidate configuration information includes candidate cell configurations; The sending module is also used to send first indication information to the terminal through L1 signaling or L2 signaling; the first indication information is used to indicate a change to the primary cell and / or secondary cell of the terminal, so that the terminal configures the primary cell and / or secondary cell of the terminal according to the first indication information and the candidate configuration information.

82. The device according to claim 81, characterized in that The candidate configuration information includes: at least one candidate cell configuration; The candidate cell configuration includes: a candidate cell index, a measurement configuration, and candidate cell configuration information.

83. The device according to claim 82, characterized in that The candidate cell configuration information includes at least one of the following information: Cell ID, cell radio network temporary identifier C-RNTI, random access channel RACH resources, system information, timing advance group TAG ID, uplink bandwidth configuration, downlink bandwidth configuration.

84. The device according to any one of claims 82 or 83, characterized in that The first indication information is one of the following three signalings: The first indication signaling is used to indicate that a primary cell of the terminal is changed; The second indication signaling is used to instruct to change the secondary cell of the terminal; Alternatively, the third indication signaling is used to indicate a change to the primary cell and the secondary cell of the terminal.

85. The device according to any one of claims 82 or 83, characterized in that The first indication information includes a first flag, where the first flag is used to indicate one of the following situations: The first indication information is used to indicate a primary cell for the terminal; The first indication information is used to instruct to change the secondary cell of the terminal; Alternatively, the first indication information is used to indicate a change in a primary cell and a secondary cell of the terminal.

86. The device according to any one of claims 82 to 85, characterized in that The first indication information includes a first indication bit of a first secondary cell; The first indication bit is used to indicate that a change occurs in the first secondary cell.

87. The device according to any one of claims 82 to 86, characterized in that The first indication information includes a second indication bit of a second secondary cell; The second indication bit is used to indicate that the second secondary cell does not change.

88. The device according to claim 86, characterized in that The first indication information further includes a third indication bit of the first secondary cell; the third indication bit is used to indicate a change type of the first secondary cell; the change type is addition, release, or replacement.

89. The device according to claim 88, characterized in that When the third indicator bit is 0, the third indicator bit is used to indicate that the change type of the first secondary cell is release.

90. The device according to claim 88 or 89, characterized in that When the third indicator bit is non-zero, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement, and the third indicator bit is used to indicate the first candidate cell index; The candidate cell corresponding to the first candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

91. The device according to claim 88 or 89, characterized in that When the third indicator bit is 1, the third indicator bit is used to indicate that the change type of the first secondary cell is addition or replacement; and the first indication information further includes a second candidate cell index; The candidate cell corresponding to the second candidate cell index is a target cell for performing an addition or replacement operation on the first secondary cell.

92. The device according to any one of claims 82 to 91, characterized in that The first indication information further includes a fourth indication bit of each secondary cell that is replaced or released; the fourth indication bit is used to indicate the cell index of each secondary cell.

93. The device according to claim 81, characterized in that The candidate configuration information includes at least one configuration set; The configuration set includes a candidate configuration index, a primary cell configuration, and a set of secondary cell configurations associated with the primary cell configuration; Alternatively, the configuration set includes a candidate configuration index, at least two primary cell configurations, and the same set of secondary cell configurations associated with the at least two primary cell configurations; The secondary cell configuration includes a candidate secondary cell list and cell configuration information corresponding to the candidate secondary cell list.

94. The device according to claim 93, characterized in that The candidate secondary cell list includes a first secondary cell list; the first secondary cell list includes cell indexes of all secondary cells after cell switching; Alternatively, the candidate secondary cell list includes a second secondary cell list; the second secondary cell list includes cell indexes of secondary cells that are added, modified and / or released based on a current secondary cell list of the terminal.

95. The device according to claim 94, characterized in that The first indication information includes a cell index of a target primary cell.

96. The device according to any one of claims 81 to 95, characterized in that The candidate configuration information further includes secondary cell state indication information; the secondary cell state indication information is used to indicate the cell state of the changed secondary cell.

97. The device according to any one of claims 81 to 95, characterized in that The first indication information includes a fifth indication bit of a third secondary cell; the third secondary cell is a newly added secondary cell; and the fifth indication bit is used to indicate a cell status of the third secondary cell.

98. The device according to any one of claims 81 to 95, characterized in that The first indication information includes a sixth indication bit of each secondary cell; the sixth indication bit is used to indicate the cell status of each secondary cell.

99. The device according to any one of claims 81 to 98, characterized in that The first indication information includes a seventh indication bit, and the seventh indication bit is used to indicate a field type of a cell index of each secondary cell.

100. The device according to any one of claims 81 to 99, characterized in that The first indication information includes an eighth indication bit; the eighth indication bit is used to indicate whether the first indication information includes the status information of the secondary cell, and / or the eighth indication bit is used to indicate the type of the status information of the secondary cell.

101. A terminal, characterized in that: The terminal includes a processor, a memory and a transceiver; The transceiver is configured to receive candidate configuration information sent by a base station; the candidate configuration information includes a candidate cell configuration; and receive first indication information sent by the base station via L1 signaling or L2 signaling; The first indication information is used to instruct to change the primary cell and / or secondary cell of the terminal; The processor is configured to configure a primary cell and / or a secondary cell for the terminal according to the first indication information and the candidate configuration information.

102. A base station, characterized in that The base station includes a processor, a memory and a transceiver; The transceiver is configured to send candidate configuration information to the terminal; the candidate configuration information includes a candidate cell configuration; and first indication information sent to the terminal via L1 signaling or L2 signaling; The first indication information is used to instruct to change the primary cell and / or secondary cell of the terminal, so that the terminal configures the primary cell and / or secondary cell of the terminal according to the first indication information and the candidate configuration information.

103. A computer-readable storage medium, characterized in that The storage medium stores a computer program, which is used to be executed by a processor to implement the cell configuration method according to any one of claims 1 to 50.

104. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium; a processor of a computer device executes the computer instructions, so that the computer device executes the cell configuration method according to any one of claims 1 to 50.

105. A computer program, characterized in that The computer program includes computer instructions, and a processor of a computer device executes the computer instructions, so that the computer device executes the cell configuration method according to any one of claims 1 to 50.

106. A chip, characterized in that: The chip is used to execute the cell configuration method according to any one of claims 1 to 50.

Images