Control method, device and terminal of secondary cell group

Abstract

The present application discloses a control method, device and terminal for a secondary cell group, which belongs to the field of communication technology. The control method for the secondary cell group of an embodiment of the present application includes: the terminal receives a first command; the terminal controls the state of the SCG according to the first command; the terminal performs a first operation according to the state of the SCG, and the first operation includes at least one of the following: controlling the state of the service cell of the SCG; performing reconfiguration or switching of wireless bearers related to the SCG; controlling the state of the PDCP duplication function; performing measurement-related operations. Through the control method for the secondary cell group provided by the present application, one or more of the state of the service cell of the SCG of the terminal, the state of the PDCP duplication function and measurement-related behaviors can be regulated when the SCG is deactivated or reactivated after deactivation.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a control method, device and terminal for a secondary cell group. Background Art

[0002] Dual Connectivity (DC), that is, User Equipment (UE), also known as a terminal, provides resources of two network nodes (access network elements), one of which is called the master node (MasterNode, MN) and the other is called the secondary node (Secondary Node, SN). Carrier Aggregation (CA) technology is used in each network node, that is, a series of service cells controlled by the network node are configured for the UE, also known as a cell group (Cell Group). The master node controls the master cell group (Master Cell Group, MCG), and the secondary node controls the secondary cell group (Secondary Cell Group, SCG). Each cell group contains a special cell (SpecialCell, SpCell) and a series of secondary cells (Secondary Cell, Scell). In MCG, the special cell is called the primary cell (Primary Cell, PCell), and in SCG, the special cell is called the primary secondary cell (Primary Secondary Cell, PSCell).

[0003] The SCG deactivation state was introduced in the 3rd Generation Partnership Project (3GPP) Rel-17 version. When the terminal has no data demand on the SCG, the terminal is overheated or low on power, the network can deactivate the SCG instead of directly deleting the SCG and then adding it back when larger data appears. Deactivating the SCG can enable the terminal to work in a more power-saving manner for a longer period of time. When the situation changes, the network can reactivate the SCG, thereby restoring the SCG more quickly. However, in the prior art, there is no relevant solution for the behavior of the terminal after the SCG is deactivated, and the behavior control of the SCG after it is activated from the deactivated state, for example, controlling the state of the SCG's service cell, controlling the state of the Packet Data Convergence Protocol duplication (PDCP duplication) function, measuring related behaviors, etc. Summary of the invention

[0004] The embodiments of the present application provide a control method, device and terminal for a secondary cell group, which can regulate one or more of the status of the service cell of the SCG of the terminal, the status of the PDCP duplication function and measurement-related behaviors when the SCG is deactivated or reactivated after deactivation.

[0005] In a first aspect, a method for controlling a secondary cell group is provided, the method comprising:

[0006] The terminal receives a first command;

[0007] The terminal controls the state of the secondary cell group SCG according to the first command;

[0008] The terminal performs a first operation according to the state of the SCG, where the first operation includes at least one of the following:

[0009] Controlling the status of the serving cell of the SCG;

[0010] performing reconfiguration or switching of radio bearers associated with the SCG;

[0011] Controls the status of the Packet Data Convergence Protocol duplication function;

[0012] Perform measurement related operations.

[0013] In a second aspect, a control device for a secondary cell group is provided, the device comprising:

[0014] A receiving module, configured to receive a first command;

[0015] A control module, configured to control the state of the secondary cell group SCG according to the first command;

[0016] An execution module is configured to execute a first operation according to the state of the SCG, where the first operation includes at least one of the following:

[0017] Controlling the status of the serving cell of the SCG;

[0018] performing reconfiguration or switching of radio bearers associated with the SCG;

[0019] Controls the status of the Packet Data Convergence Protocol duplication function;

[0020] Perform measurement related operations.

[0021] In a third aspect, a terminal is provided, comprising a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0022] In a fourth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive a first command, and the processor is used to control the state of a secondary cell group SCG according to the first command, and perform a first operation according to the state of the SCG, and the first operation includes at least one of the following: controlling the state of a service cell of the SCG; performing reconfiguration or switching of a wireless bearer related to the SCG; controlling the state of a packet data convergence protocol duplication PDCP duplication function; and performing measurement-related operations.

[0023] In a fifth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0024] In a sixth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.

[0025] In a seventh aspect, a computer program or program product is provided, wherein the computer program or program product is stored in a non-volatile storage medium, and the program or program product is executed by at least one processor to implement the steps of the method described in the first aspect.

[0026] In an embodiment of the present application, the terminal controls the state of the SCG according to a received first command, and performs a first operation according to the state of the SCG, the first operation including at least one of the following: controlling the state of the service cell of the SCG; performing reconfiguration or switching of wireless bearers related to the SCG; controlling the state of the packet data convergence protocol duplication PDCPduplication function; performing measurement-related operations, so that one or more of the state of the service cell of the SCG of the terminal, the state of the PDCP duplication function and measurement-related behaviors can be standardized when the SCG is deactivated or reactivated after deactivation, thereby improving the communication performance of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0028] Figure 2 is a flow chart of a method for controlling a secondary cell group provided in an embodiment of the present application;

[0029] Figure 3 is a structural diagram of a control device for a secondary cell group provided in an embodiment of the present application;

[0030] Figure 4 is a structural diagram of a communication device provided in an embodiment of the present application;

[0031] Figure 5 It is a structural diagram of a terminal provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0033] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0034] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.

[0035] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal side devices, and the wearable device includes: a smart watch, a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network, wherein the base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0036] The control method of the secondary cell group provided in the embodiment of the present application is described in detail below through some embodiments and application scenarios in combination with the accompanying drawings.

[0037] See also Figure 2 , Figure 2 is a flow chart of a method for controlling a secondary cell group provided in an embodiment of the present application. The method can be executed by a terminal, such as Figure 2 As shown, the following steps are included:

[0038] Step 201: The terminal receives a first command.

[0039] In this embodiment, the first command may be used to control the state of the SCG of the terminal, wherein the state of the SCG may include but is not limited to an activated state, a deactivated state, or a dormant state, etc. Optionally, the first command may include an SCG activation command or an SCG deactivation command.

[0040] Step 202: The terminal controls the state of the SCG according to the first command.

[0041] In this step, if the above-mentioned first command is used to indicate the activation of SCG, the terminal can activate SCG, that is, control SCG to be in an activated state; if the above-mentioned first command is used to indicate the deactivation of SCG, the terminal can deactivate SCG, that is, control SCG to be in a deactivated state.

[0042] Step 203: The terminal performs a first operation according to the state of the SCG, where the first operation includes at least one of the following:

[0043] Controlling the status of the serving cell of the SCG;

[0044] performing reconfiguration or switching of radio bearers associated with the SCG;

[0045] Controls the status of the Packet Data Convergence Protocol duplication function;

[0046] Perform measurement related operations.

[0047] In this embodiment, the service cell of the SCG may include at least one of the PSCell and SCell of the SCG. The state of the service cell of the SCG may include but is not limited to an activated state or a deactivated state or a dormant state. The terminal controls the state of the service cell of the SCG according to the state of the SCG. For example, if the SCG is in an activated state, the service cell of the SCG may be activated, that is, the service cell of the SCG may be controlled to be in an activated state to quickly start data transmission; if the SCG is in a deactivated state, the service cell of the SCG may be deactivated, that is, the service cell of the SCG may be controlled to be in a deactivated state to save power.

[0048] The above-mentioned radio bearer (Radio Bearer) related to the SCG may include at least one of a signaling radio bearer (SignalRadio Bearer, SRB) and a data radio bearer (Data Radio Bearer, DRB). The bearer type of the above-mentioned radio bearer related to the SCG may include an SCG bearer (SCG Bearer) and a split bearer (SplitBearer), etc. The above-mentioned terminal performs reconfiguration or switching of the radio bearer related to the SCG according to the state of the SCG. For example, if the SCG is in an activated state, the bearer type of at least one radio bearer is configured as an SCG bearer, or the bearer type of at least one radio bearer is switched from a split bearer to an SCG bearer; if the SCG is in a deactivated state, the bearer type of at least one radio bearer is configured as a split bearer, or the bearer type of at least one radio bearer is switched from an SCG bearer to a split bearer.

[0049] The state of the PDCP duplication function may include but is not limited to an activated state, a deactivated state, or a dormant state, etc. The terminal controls the state of the PDCP duplication function according to the state of the SCG. For example, if the SCG is in an activated state, the PDCP duplication function of at least one wireless bearer may be activated, that is, the PDCP duplication function of at least one wireless bearer may be controlled to be in an activated state; if the SCG is in a deactivated state, the PDCP duplication function of at least one wireless bearer may be deactivated, that is, the PDCP duplication function of at least one wireless bearer may be controlled to be in a deactivated state. The wireless bearer may include at least one of an SRB and a DRB.

[0050] The above-mentioned measurement-related operations may include, but are not limited to, one or more of measurement, measurement reporting, and control of relaxed measurements. The above-mentioned measurements may include, but are not limited to, at least one of channel state information (CSI) measurement, layer 1 (Layer 1, L1) measurement, radio link monitoring (Radio Link Monitor, RLM) measurement, bidirectional forwarding detection (Bidirectional Forwarding Detection, BFD) measurement, and radio resource management (Radio Resource Management, RRM) measurement. The above-mentioned relaxed measurement can be understood as a measurement in which at least one of the measurement conditions (for example, measurement threshold, number of measurement frequencies, etc.) and measurement period is relaxed or relaxed relative to conventional measurements. The above-mentioned terminal performs measurement-related operations according to the state of the SCG. For example, if the SCG is in an activated state, measurement and measurement reporting are started, and if the SCG is in a deactivated state, relaxed measurements are started.

[0051] The control method of the secondary cell group provided in the embodiment of the present application, the terminal controls the state of the SCG according to the received first command, and performs a first operation according to the state of the SCG, the first operation including at least one of the following: controlling the state of the service cell of the SCG; performing reconfiguration or switching of wireless bearers related to the SCG; controlling the state of the packet data convergence protocol duplication PDCP duplication function; performing measurement-related operations, so that one or more of the state of the service cell of the SCG of the terminal, the state of the PDCP duplication function and measurement-related behaviors can be standardized when the SCG is deactivated or reactivated after deactivation, thereby improving the communication performance of the terminal.

[0052] Optionally, the terminal controls the state of the serving cell of the SCG according to the state of the SCG, including at least one of the following:

[0053] When the SCG is in an activated state, the terminal controls the state of some or all of the serving cells of the SCG to be a first state; wherein the first state includes one of the following: a state predefined by a protocol, a state determined according to a Radio Resource Control (RRC) configuration, and a state determined according to a first Media Access Control Control Element (MAC CE);

[0054] When the SCG is in a deactivated state, the terminal controls the state of part or all of the service cells of the SCG to be a deactivated state.

[0055] In this embodiment, the state predefined by the above protocol may include an activation state or a deactivation state. The above RRC configuration is used to indicate the state of the serving cell of the SCG, for example, the sCellState configuration. Optionally, the above RRC configuration may be sent together with the SCG activation command, or may be sent before sending the SCG activation command, that is, the sending time of the above RRC configuration may be the same as the sending time of the SCG activation command, or the sending time of the above RRC configuration may be earlier than the sending time of the SCG activation command.

[0056] The first MAC CE is used to display or implicitly indicate the status of the service cell of the SCG, wherein the first MAC CE may be a reused MAC CE already existing in the existing protocol, for example, SCell activation or deactivation MAC CE (i.e., SCellActivation / Deactivation MAC CE, which may be referred to as SCell A / D MAC CE for short), or a newly defined MAC CE, which is not limited in this embodiment. Optionally, the first MAC CE may be sent by the MCG, that is, the terminal receives the first MAC CE from the MCG.

[0057] In one embodiment, when the SCG is in an activated state, the state of some or all service cells of the SCG can be predefined as an activated state by protocol. For example, all SCells of the SCG can be activated by default to start data transmission as soon as possible while saving signaling.

[0058] In another embodiment, when the SCG is in an activated state, the state of some or all service cells of the SCG may be predefined as a deactivated state by agreement. For example, all SCells of the SCG may be deactivated by default to save signaling and reduce terminal power consumption.

[0059] In another embodiment, when the SCG is in an activated state, the state of the service cell of the SCG can be determined according to the RRC configuration. For example, if the RRC configuration indicates activation of at least one service cell of the SCG, then at least one service cell of the SCG can be activated; if the RRC configuration indicates deactivation of at least one service cell of the SCG, then at least one service cell of the SCG can be deactivated. This embodiment determines the state of the service cell of the SCG based on the RRC configuration when the SCG is in an activated state, which can improve the flexibility of the state control of the service cell of the SCG.

[0060] In another embodiment, when the SCG is in an activated state, the state of the service cell of the SCG can be determined according to the first MAC CE. For example, if the first MAC CE indicates activation of at least one service cell of the SCG, at least one service cell of the SCG can be activated, and if the first MAC CE indicates deactivation of at least one service cell of the SCG, at least one service cell of the SCG can be deactivated. This embodiment determines the state of the service cell of the SCG based on the first MAC CE when the SCG is in an activated state, which can improve the flexibility and timeliness of the state control of the service cell of the SCG.

[0061] In another embodiment, when the SCG is in a deactivated state, the state of some or all service cells of the SCG can be controlled to be a deactivated state. For example, all SCells and PSCells of the SCG can be deactivated by default to save signaling and reduce terminal power consumption.

[0062] It should be noted that the above-mentioned SCG being in an activated state may also be referred to as the SCG being activated. The above-mentioned SCG being in a deactivated state may also be referred to as the SCG being activated.

[0063] Optionally, the first MAC CE is an SCell activation or deactivation MAC CE, and a reserved bit of the SCell activation or deactivation MAC CE is a first value, which is used to indicate that the SCell activation or deactivation MAC CE is applied to the SCG.

[0064] In this embodiment, the first MAC CE may be an existing SCell activation or deactivation MAC CE (i.e., SCell A / D MAC CE) in the existing protocol. The SCell A / D MAC CE includes a reserved bit, and the value of the reserved bit may include a first value and a second value, for example, one of the first value and the second value is 1, and the other is 0. When the reserved bit of the SCell A / D MAC CE is the first value, the SCell A / D MAC CE is applied to the SCG, and when the reserved bit of the SCell A / D MAC CE is the second value, the SCell A / D MAC CE is applied to the MCG, for example, when the reserved bit of the SCell A / D MAC CE is 1, the SCell A / D MAC CE is applied to the SCG, and when the reserved bit of the SCell A / D MAC CE is 0, the SCell A / D MAC CE is applied to the MCG.

[0065] In one implementation, when the SCell A / D MAC CE is applied to the SCG, the SCG may be activated by default, and the PSCell of the SCG may be activated by default. Optionally, part or all of the SCells of the SCG may also be activated by default.

[0066] In one embodiment, when the above-mentioned SCell A / D MAC CE is applied to SCG, the first bit of the SCell activation or deactivation MAC CE can be used to indicate the state of the SCell of the SCG, and the first bit is the bit in the SCell activation or deactivation MAC CE except the reserved bit, so that the state of the SCell of the SCG can be determined according to the first bit of the SCell activation or deactivation MAC CE.

[0067] Optionally, the first MAC CE includes a logical channel identity (Logical Channel Identity, LCID) field and an indication field, and the LCID field is used to indicate the type or function of the first MAC CE;

[0068] When the LCID domain indicates that the type or function of the first MAC CE is to indicate the status of a service cell of at least one SCG, the indication domain is used to indicate the status of a service cell of at least one SCG; when the LCID domain indicates that the type or function of the first MAC CE is to indicate the status of a specific service cell, the indication domain is used to indicate the status of a specific service cell, and the specific service cell includes a primary or secondary cell PSCell or Scell.

[0069] In this embodiment, the first MAC CE may be a newly defined MAC CE. The first MAC CE may include an LCID domain and an indication domain, the LCID domain is used to indicate the type or function of the first MAC CE, the type or function of the first MAC CE may include indicating the status of a service cell of at least one SCG or indicating the status of a specific service cell, wherein the specific service cell may be a specific service cell related to the SCG, such as a PSCell or a SCell. For example, if the value of the LCID domain is the first LCID domain value, the type or function of the first MAC CE is to indicate the status of a service cell of at least one SCG, wherein the first LCID domain value may be related to at least one SCG; if the value of the LCID domain is the second LCID domain value, the type or function of the first MAC CE is to indicate the status of a specific service cell.

[0070] Optionally, the above-mentioned LCID domain may include an eLCID domain (Extend LCID), wherein the eLCID domain contains at least two values, for example, contains two OCTETs (octets), one OCTET indicates a code point (Codepoint), and the other OCTET indicates an index (index), as shown in Table 1.

[0071] Table 1 eLCID values ​​of two OCTETs

[0072] Code Point index LCID value <![CDATA[0 to (2 16 – 1)]]> <![CDATA[320 to (2 16 + 319)]]> Logical channel identifier

[0073] Optionally, when the LCID field indicates that the type or function of the first MAC CE is to indicate the status of a serving cell of at least one SCG, the indication field may include at least one of the following:

[0074] An SCG identification field, used to indicate the SCG corresponding to the first MAC CE;

[0075] The first field is used to indicate activation or deactivation of the SCG;

[0076] A length field, used to indicate the length of the first MAC CE;

[0077] A serving cell identification field or a serving cell bitmap field, used to indicate a state of at least one serving cell of the SCG, where the state of the serving cell includes an activation state or a deactivation state;

[0078] The Bandwidth Part (BWP) identification field is used to indicate the state of the BWP of the at least one serving cell.

[0079] In this embodiment, the SCG identification (i.e., SCG ID) field can be used to indicate the SCG corresponding to the first MAC CE, and the SCG corresponding to the first MAC CE can be understood as the SCG applied by the first MAC CE or the SCG acted on by the first MAC CE, etc. For example, if the first LCID field value is related to multiple SCGs, the SCG ID can be used to identify which SCG the first MAC CE is applied to.

[0080] The first domain, which may also be referred to as an activation or deactivation domain (i.e., an A / D domain), is used to indicate activation or deactivation of the SCG. For example, when the value of the first domain is 1, the SCG is activated, and when the value of the first domain is 0, the SCG is deactivated. The SCG may be the SCG applied by the first MAC CE.

[0081] The above-mentioned service cell identification field (i.e., service cell ID field) or service cell bitmap field is used to indicate the status of at least one service cell of the SCG to which the first MACCE is applied. For example, the above-mentioned service cell ID field indicates the service cell that the first MAC CE will activate or deactivate. Different bits of the service cell bitmap field can correspond to different service cells respectively. When a bit of the service cell bitmap field is 1, it indicates that the service cell corresponding to the bit is activated. When a bit of the above-mentioned service cell ID field or service cell bitmap field is 0, it indicates that the service cell corresponding to the bit is deactivated. Optionally, the above-mentioned service cell ID field can be used to indicate the status of the service cell set of the SCG.

[0082] The BWP identification field (ie, the BWP ID field) is used to indicate the BWP to be activated. For example, the BWP ID field indicates the BWP that the terminal needs to activate when activating the SCG.

[0083] Optionally, the indication field includes the first field and the serving cell bitmap field, and when the first field indicates to deactivate SCG, the terminal performs one of the following:

[0084] Ignore the serving cell bitmap field;

[0085] It is expected that the bit corresponding to the serving cell bitmap field is 0;

[0086] When the bit corresponding to the serving cell bitmap field is not 0, the bit corresponding to the serving cell bitmap field is ignored.

[0087] In one embodiment, when the first field indicates to deactivate the SCG, the terminal may ignore the service cell bitmap field, that is, not control the state of the service cell based on the service cell bitmap field. In this case, the terminal may optionally maintain the state of the service cell of the SCG or may control the service cell of the SCG to be in a deactivated state.

[0088] In another embodiment, when the first domain indicates deactivation of SCG, the terminal expects the bit corresponding to the service cell bitmap domain to be 0, that is, the terminal does not expect the network side device to configure the bit corresponding to the service cell bitmap domain to be 1, so that the terminal can deactivate the corresponding service cells according to the values ​​of each bit of the service cell bitmap domain.

[0089] In another embodiment, when the first domain indicates to deactivate the SCG, when the bit corresponding to the service cell bitmap domain is not 0, the terminal may ignore the bit whose value is not 0 in the service cell bitmap domain, that is, not control the state of the corresponding service cell according to the bit whose value is not 0 in the service cell bitmap domain. In this case, optionally, the terminal may maintain the state of the service cell corresponding to the bit whose value is not 0 in the service cell bitmap domain, or may control the service cell corresponding to the bit whose value is not 0 in the service cell bitmap domain to be in a deactivated state.

[0090] Optionally, when the LCID field indicates that the type or function of the first MAC CE is to indicate the state of a specific service cell, the indication field may include but is not limited to a service cell ID field and / or a second field, wherein the service cell ID field is used to indicate the specific service cell to which the first MAC CE is applied, and the second field is used to indicate activation or deactivation of the specific service cell to which the first MAC CE is applied. Optionally, in the absence of the second field, the specific service cell to which the first MAC CE is applied may be activated by default.

[0091] Optionally, the terminal receives a first command, including:

[0092] The terminal receives the first MAC CE; the type or function of the first MAC CE is to indicate the state of a specific serving cell;

[0093] The terminal controls the state of the secondary cell SCG according to the first command, including:

[0094] The terminal activates or deactivates the SCG where the specific service cell is located.

[0095] In this embodiment, when the terminal receives the first MAC CE indicating the state of a specific service cell, the SCG where the specific service cell is located can be activated or deactivated. For example, if the first MAC CE is used to indicate activation of a specific service cell, the terminal can activate the SCG where the specific service cell is located, and activate the specific service cell; if the first MAC CE is used to indicate deactivation of a specific service cell, the terminal can deactivate the SCG where the specific service cell is located, and deactivate the specific service cell. The above-mentioned specific service cell may include a PSCell or an SCell.

[0096] In the embodiment of the present application, the terminal can control the state of the SCG where the specific service cell is located and the state of the specific service cell according to the first MAC CE indicating the state of the specific service cell, which can save signaling while improving the flexibility of controlling the SCG state and the specific service cell state.

[0097] Optionally, the method may further include: the terminal receives a second MAC CE; the type or function of the second MAC CE is to indicate the state of a first specific service cell related to the MCG, and the first specific service cell includes a PCell or an Scell; the terminal activates or deactivates the MCG where the first specific service cell is located. For example, if the second MAC CE is used to indicate activation of the first specific service cell, the terminal may activate the MCG where the first specific service cell is located, and activate the first specific service cell; if the second MAC CE is used to indicate deactivation of the first specific service cell, the terminal may deactivate the MCG where the first specific service cell is located, and deactivate the first specific service cell.

[0098] Optionally, when the SCG is in a deactivated state, the first configuration received by the terminal does not trigger activation of the SCell of the SCG, and the first configuration is used to indicate activation of the SCell of the SCG or is used when the SCell of the SCG is in an activated state.

[0099] In this embodiment, when the SCG is in a deactivated state, if the terminal receives a first configuration for indicating activation of the SCell of the SCG or for use when the SCell of the SCG is in an activated state, the terminal may not trigger activation of the SCell of the SCG and may keep the SCell of the SCG in a deactivated state. Optionally, when the SCG is activated, the SCell of the SCG may be activated according to the above-mentioned first configuration.

[0100] In this embodiment, when the SCG is in a deactivated state, if the terminal receives a first configuration, the terminal prohibits the first configuration from triggering activation of the SCell of the SCG, which can reduce power consumption of the terminal.

[0101] Optionally, when the terminal does not receive the second configuration from the network side device, the first state is a state predefined by the protocol, and the second configuration is used to indicate the state of the service cell of the SCG.

[0102] In this embodiment, when the terminal does not receive the second configuration for indicating the status of the service cell of the SCG from the network side device during the activation of the SCG, the status of some or all of the service cells of the SCG can be predefined by protocol as an activated state, or the status of some or all of the service cells of the SCG can be predefined by protocol as a deactivated state.

[0103] It should be noted that, when the terminal receives a second configuration for indicating the state of the service cell of the SCG from a network-side device during the process of activating the SCG, the terminal can control the state of the service cell of the SCG according to the second configuration.

[0104] Optionally, when the activation process of the SCG is initiated by a network device and the terminal does not receive a second configuration for indicating the state of the service cell of the SCG from the network side device, the first state is a state predefined by the protocol.

[0105] Optionally, when the activation process of the SCG is initiated by the terminal, the terminal controls the state of some or all of the service cells of the SCG to be the first state.

[0106] Optionally, before or after the terminal receives the first command, the method further includes:

[0107] The terminal sends an SCG activation request to the network side device;

[0108] The SCG activation request carries the following items: an identifier of a service cell expected to be activated, the number of service cells expected to be activated, a set of identifiers of service cells expected to be activated, and a type of service cell expected to be activated.

[0109] In this embodiment, the SCG activation request is used to request activation of the SCG. The service cell identifier set may include multiple service cell identifiers. The type of the service cell may include at least one of the following: PSCell, Scell, a service cell configured with a physical uplink control channel (Physical Uplink Control Channel, PUCCH), a service cell of a specific frequency point or a specific frequency range.

[0110] In the embodiment of the present application, the terminal sends an SCG activation request to the network side device, which carries at least one of the service cell identifier to be activated, the number of service cells to be activated, the set of service cell identifiers to be activated, and the type of service cell to be activated. In this way, the network side device can provide the terminal with relevant configurations for service cell activation that are more in line with the terminal requirements.

[0111] Optionally, the terminal performs reconfiguration or switching of a radio bearer related to the SCG according to the state of the SCG, including at least one of the following:

[0112] When the SCG is in an activated state, the terminal switches the bearer type of at least one radio bearer from a separate bearer to an SCG bearer;

[0113] When the SCG is in a deactivated state, the terminal switches the bearer type of at least one radio bearer from an SCG bearer to a separated bearer.

[0114] Optionally, when the terminal switches the bearer type of at least one radio bearer from an SCG bearer to a separated bearer, the method further includes: configuring a main path of the separated bearer as an MCG.

[0115] For example, DRB1 and DRB2 are both SCG bearers, DRB1 is configured with MCG MAC configuration, but DRB2 is not. When SCG is deactivated, the UE configures the bearer type of DRB1 from SCG bearer to split bearer and temporarily suspends DRB2. Optionally, when SCG is activated, the UE switches the bearer type of DRB1 from split bearer back to SCG bearer and cancels the suspension of DRB2. After SCG is deactivated, the bearer type of DRB1 is switched from SCG bearer to split bearer, and the main path of split DRB1 is configured as MCG. In this way, during the SCG deactivation period, when the UE has uplink data, it can be sent through MCG first. When the amount of data reaches a predefined threshold and needs to be sent through SCG, it requests to activate SCG, thereby avoiding the situation where SCG is activated immediately after being deactivated. When SCG is activated, it can be restored to the previous SCG bearer, or the network can reconfigure the bearer type of SCG.

[0116] Optionally, when the SCG is in a deactivated state, if there is a pre-configured MCG MAC or MCG Radio Link Control (Radio Link Control, RLC) configuration, the terminal switches the bearer type of at least one radio bearer from an SCG bearer to a separate bearer.

[0117] Optionally, the terminal controls a state of a PDCP duplication function according to a state of the SCG, including at least one of the following:

[0118] When the SCG is in an activated state, the terminal activates a PDCP duplication function of at least one radio bearer;

[0119] When the SCG is in a deactivated state, the terminal deactivates a PDCP duplication function of at least one radio bearer.

[0120] In this embodiment, when the SCG is in an activated state, the terminal activates the PDCP duplication function of at least one wireless bearer, which can improve the reliability of data transmission; when the SCG is in a deactivated state, the terminal deactivates the PDCP duplication function of at least one wireless bearer, which can reduce network signaling overhead while avoiding frequent triggering of unnecessary SCG activation processes.

[0121] Optionally, when the SCG is in an activated state, the terminal activates a PDCP duplication function of at least one radio bearer, including at least one of the following:

[0122] When the SCG is in an activated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal activates the PDCP duplication function of at least one of the separated radio bearers;

[0123] When the SCG is in an activated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal activates the PDCP duplication function of at least one SCG RLC entity corresponding to the separated radio bearer.

[0124] In this embodiment, the above-mentioned separated radio bearer may include at least one of a separated signaling radio bearer (Split SRB) and a separated data radio bearer (Split DRB). For example, when the SCG is in an activated state, if the separated signaling radio bearer is configured with the PDCP duplication function, the terminal activates the PDCP duplication function of at least one of the separated signaling radio bearers, and / or activates the PDCP duplication function of at least one SCG RLC entity corresponding to the separated signaling radio bearer; if the separated data radio bearer is configured with the PDCP duplication function, the terminal activates the PDCP duplication function of at least one of the separated data radio bearers, and / or activates the PDCP duplication function of at least one SCG RLC entity corresponding to the separated data radio bearer.

[0125] In this embodiment, when the SCG is in an activated state, if the separated wireless bearer is configured with the PDCP duplication function, the terminal activates the PDCP duplication function of at least one of the separated wireless bearers, and / or activates the PDCP duplication function of the SCG RLC entity corresponding to at least one of the separated wireless bearers, thereby improving the reliability of data transmission.

[0126] Optionally, when the SCG is in a deactivated state, the terminal deactivates a PDCP duplication function of at least one radio bearer, including at least one of the following:

[0127] When the SCG is in a deactivated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal deactivates the PDCP duplication function of at least one of the separated radio bearers;

[0128] When the SCG is in a deactivated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal deactivates the PDCP duplication function of at least one SCG RLC entity corresponding to the separated radio bearer.

[0129] In this embodiment, the above-mentioned separated radio bearer may include at least one of a separated signaling radio bearer (Split SRB) and a separated data radio bearer (Split DRB). For example, when the SCG is in a deactivated state, if the separated signaling radio bearer is configured with a PDCP duplication function, the terminal deactivates the PDCP duplication function of at least one of the separated signaling radio bearers, and / or deactivates the PDCP duplication function of at least one SCG RLC entity corresponding to the separated signaling radio bearer; if the separated data radio bearer is configured with a PDCP duplication function, the terminal deactivates the PDCP duplication function of at least one of the separated data radio bearers, and / or deactivates the PDCP duplication function of at least one SCG RLC entity corresponding to the separated data radio bearer.

[0130] In actual applications, if the separated wireless bearer is configured with the PDCP duplication function and the PDCP duplication function is in an activated state, when the SCG is in a deactivated state, the PDCP layer will copy multiple copies of the PDCP data PDU and transmit them to the corresponding RLC entities, including the SCG RLC entity, causing the SCG to trigger a request to activate the SCG. Since the SCG may be deactivated for power saving or overheating reasons, the activation of the SCG should not be triggered by the PDCP duplication function at this time. The prior art is to solve the above problem by having the network side device send a PDCP duplication function deactivation command when deactivating the SCG. However, this method increases the signaling overhead of the network side device. In this embodiment, when the SCG is in a deactivated state, if the separated wireless bearer is configured with the PDCP duplication function, the terminal deactivates the PDCP duplication function of at least one of the separated wireless bearers, and / or deactivates the PDCP duplication function of the SCG RLC entity corresponding to at least one of the separated wireless bearers, thereby avoiding frequent triggering of unnecessary SCG activation processes and reducing network signaling overhead.

[0131] Optionally, the terminal performs measurement-related operations according to the state of the SCG, including at least one of the following:

[0132] When the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal performs at least one of measurement and measurement reporting;

[0133] When the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal cancels the relaxed measurement.

[0134] In this embodiment, the above-mentioned measurement may include but is not limited to at least one of CSI measurement, L1 measurement, RLM measurement, BFD measurement and RRM measurement. The above-mentioned relaxed measurement can be understood as a measurement in which at least one of the measurement conditions (for example, measurement threshold, number of measurement frequency points, etc.) and measurement period, etc. is relaxed or relaxed relative to the conventional measurement.

[0135] In actual applications, when the terminal is in a deactivated state of SCG and there is data to be sent on SCG, the UE can initiate an SCG activation process, for example, by sending an activation request to the network side device. If the UE receives an SCG deactivation command, that is, the network side device rejects the SCG activation request sent by the terminal, for example, the network side device rejects the SCG activation request due to factors such as resource constraints, the terminal can perform at least one of measurement, measurement reporting, and cancellation of relaxed measurements, so that the subsequent SCG activation process can be accelerated without increasing power consumption too much.

[0136] Optionally, when the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal can determine whether to perform at least one of measurement, measurement reporting and cancellation of relaxed measurement based on protocol agreement or network side configuration.

[0137] Optionally, when the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal performs at least one of measurement and measurement reporting, including:

[0138] When the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal performs at least one of measurement and measurement reporting only within a preset time.

[0139] In this embodiment, the above-mentioned preset time can be reasonably set according to actual conditions, for example, it can be within 20 milliseconds from the moment when the terminal receives the SCG deactivation command. When the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal can only perform at least one of measurement and measurement reporting within the preset time, and will not perform it again if it times out.

[0140] Optionally, before or after the terminal receives the first command, the method further includes:

[0141] The terminal sends an SCG activation request or a deactivation request to a network side device, wherein the terminal determines whether to send the SCG activation request or the deactivation request to the MN or to the SN based on the PDCP location (PDCP termination) of the radio bearer related to the SCG.

[0142] For example, if a DRB is an SCG bearer or a split bearer, and if the PDCP corresponding to the DRB is in the MN, when uplink data arrives at the DRB, the UE sends an SCG activation request to the MN. If the PDCP corresponding to the DRB is in the SN, when uplink data arrives at the DRB, the UE sends an SCG activation request to the SN.

[0143] It should be noted that the control method for the secondary cell group provided in the embodiment of the present application can be executed by a control device for the secondary cell group, or a control module in the control device for the secondary cell group for executing the control method for the secondary cell group. In the embodiment of the present application, the control device for the secondary cell group provided in the embodiment of the present application is described by taking the execution of the control method for the secondary cell group by the control device for the secondary cell group as an example.

[0144] See also Figure 3 , Figure 3 is a structural diagram of a control device for a secondary cell group provided in an embodiment of the present application, such as Figure 3 As shown, control channel monitoring 300 includes:

[0145] The receiving module 301 is used to receive a first command;

[0146] A control module 302, configured to control the state of the secondary cell group SCG according to the first command;

[0147] The execution module 303 is configured to execute a first operation according to the state of the SCG, where the first operation includes at least one of the following:

[0148] Controlling the status of the serving cell of the SCG;

[0149] performing reconfiguration or switching of radio bearers associated with the SCG;

[0150] Controls the status of the Packet Data Convergence Protocol duplication function;

[0151] Perform measurement related operations.

[0152] Optionally, the execution module is specifically used for at least one of the following:

[0153] When the SCG is in an activated state, controlling the state of some or all of the serving cells of the SCG to be in a first state; wherein the first state includes one of the following: a state predefined by a protocol, a state determined according to a radio resource control RRC configuration, and a state determined according to a first media access control control unit MAC CE;

[0154] When the SCG is in a deactivated state, the state of some or all service cells of the SCG is controlled to be a deactivated state.

[0155] Optionally, the first MAC CE is an SCell activation or deactivation MAC CE, and a reserved bit of the SCell activation or deactivation MAC CE is a first value, which is used to indicate that the SCell activation or deactivation MAC CE is applied to the SCG.

[0156] Optionally, the first MAC CE includes a logical channel identifier LCID field and an indication field, and the LCID field is used to indicate a type or function of the first MAC CE;

[0157] When the LCID domain indicates that the type or function of the first MAC CE is to indicate the status of the service cell of at least one SCG, the indication domain is used to indicate the status of the service cell of at least one SCG; when the LCID domain indicates that the first MAC CE is the second MAC CE, the indication domain is used to indicate the status of a specific service cell, and the specific service cell includes a primary or secondary cell PSCell or Scell.

[0158] Optionally, when the LCID field indicates that the type or function of the first MAC CE is to indicate the status of a serving cell of at least one SCG, the indication field includes at least one of the following:

[0159] An SCG identification field, used to indicate the SCG corresponding to the first MAC CE;

[0160] The first field is used to indicate activation or deactivation of the SCG;

[0161] A length field, used to indicate the length of the first MAC CE;

[0162] A serving cell identification field or a serving cell bitmap field, used to indicate a state of at least one serving cell of the SCG, where the state of the serving cell includes an activation state or a deactivation state;

[0163] The bandwidth part BWP identification field is used to indicate the BWP to be activated.

[0164] Optionally, the indication field includes the first field and the serving cell bitmap field, and when the first field indicates to deactivate SCG, the device performs one of the following:

[0165] Ignore the serving cell bitmap field;

[0166] It is expected that the bit corresponding to the serving cell bitmap field is 0;

[0167] When the bit corresponding to the serving cell bitmap field is not 0, the bit corresponding to the serving cell bitmap field is ignored.

[0168] Optionally, the receiving module is specifically used for:

[0169] receiving the first MAC CE; the type or function of the first MAC CE is to indicate the state of a specific serving cell;

[0170] The control module is specifically used for:

[0171] Activate or deactivate the SCG where the specific service cell is located.

[0172] Optionally, when the SCG is in a deactivated state, the first configuration received by the device does not trigger activation of the SCell of the SCG, and the first configuration is used to indicate activation of the SCell of the SCG or is used when the SCell of the SCG is in an activated state.

[0173] Optionally, when the second configuration is not received from the network side device, the first state is a state predefined by the protocol, and the second configuration is used to indicate the state of the service cell of the SCG.

[0174] Optionally, the device further comprises:

[0175] A sending module, used for sending an SCG activation request to a network side device before receiving the first command;

[0176] The SCG activation request carries the following items: an identifier of a service cell expected to be activated, the number of service cells expected to be activated, a set of identifiers of service cells expected to be activated, and a type of service cell expected to be activated.

[0177] Optionally, the execution module is specifically used for at least one of the following:

[0178] When the SCG is in an activated state, switching the bearer type of at least one radio bearer from a separate bearer to an SCG bearer;

[0179] When the SCG is in a deactivated state, the bearer type of at least one radio bearer is switched from an SCG bearer to a separated bearer.

[0180] Optionally, the execution module is specifically used for at least one of the following:

[0181] When the SCG is in an activated state, activating a PDCP duplication function of at least one radio bearer;

[0182] When the SCG is in a deactivated state, a PDCP duplication function of at least one radio bearer is deactivated.

[0183] Optionally, the execution module is specifically used for at least one of the following:

[0184] When the SCG is in an activated state, if the separated radio bearer is configured with a PDCP duplication function, activating the PDCP duplication function of at least one of the separated radio bearers;

[0185] When the SCG is in an activated state, if the separated radio bearer is configured with a PDCP duplication function, the PDCP duplication function of at least one SCG RLC entity corresponding to the separated radio bearer is activated.

[0186] Optionally, the execution module is specifically used for at least one of the following:

[0187] When the SCG is in a deactivated state, if the separated radio bearer is configured with a PDCP duplication function, deactivate the PDCP duplication function of at least one of the separated radio bearers;

[0188] When the SCG is in a deactivated state, if the separated radio bearer is configured with a PDCP duplication function, the PDCP duplication function of at least one SCG RLC entity corresponding to the separated radio bearer is deactivated.

[0189] Optionally, the execution module is specifically used for at least one of the following:

[0190] When the SCG is in a deactivated state and the sent SCG activation request is rejected, performing at least one of measurement and measurement reporting;

[0191] In the case where the SCG is in a deactivated state and the sent SCG activation request is rejected, the relaxed measurement is canceled.

[0192] Optionally, the execution module is specifically used to:

[0193] When the SCG is in a deactivated state and the sent SCG activation request is rejected, at least one of measurement and measurement reporting is performed only within a preset time.

[0194] The control device of the secondary cell group in the embodiment of the present application may be a device, a device or an electronic device with an operating system, or a component, an integrated circuit, or a chip in a terminal. The device or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include but is not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0195] The control device of the secondary cell group provided in the embodiment of the present application can achieve Figure 2 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0196] Alternatively, if Figure 4 As shown, an embodiment of the present application also provides a communication device 400, including a processor 401, a memory 402, and a program or instruction stored in the memory 402 and executable on the processor 401. For example, when the communication device 400 is a terminal, the program or instruction is executed by the processor 401 to implement the various processes of the above-mentioned control method embodiment of the secondary cell group, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0197] An embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is used to receive a first command; the processor is used to control the state of the SCG according to the first command; and perform a first operation according to the state of the SCG, wherein the first operation includes at least one of the following: controlling the state of the service cell of the SCG; performing reconfiguration or switching of wireless bearers related to the SCG; controlling the state of the PDCP duplication function; and performing measurement-related operations. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 5 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0198] The terminal 500 includes but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, and at least some of the components of a processor 510.

[0199] Those skilled in the art will appreciate that the terminal 500 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 510 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 5 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0200] It should be understood that in the embodiment of the present application, the input unit 504 may include a graphics processor (Graphics Processing Unit, GPU) 5041 and a microphone 5042, and the graphics processor 5041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 507 includes a touch panel 5071 and other input devices 5072. The touch panel 5071 is also called a touch screen. The touch panel 5071 may include two parts: a touch detection device and a touch controller. Other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0201] In the embodiment of the present application, the radio frequency unit 501 receives downlink data from the network side device and sends it to the processor 510 for processing; in addition, the uplink data is sent to the network side device. Generally, the radio frequency unit 51 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0202] The memory 509 can be used to store software programs or instructions and various data. The memory 509 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 509 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0203] The processor 510 may include one or more processing units; optionally, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 510.

[0204] The radio frequency unit 501 is used to receive a first command;

[0205] Processor 510 is used to control the state of the SCG according to the first command; perform a first operation according to the state of the SCG, and the first operation includes at least one of the following: controlling the state of the service cell of the SCG; performing reconfiguration or switching of the wireless bearer related to the SCG; controlling the state of the PDCP duplication function; and performing measurement-related operations.

[0206] The embodiments of the present application can regulate one or more of the status of the service cell of the SCG of the terminal, the status of the PDCP duplication function, and measurement-related behaviors when the SCG is in an activated or deactivated state, thereby improving the communication performance of the terminal.

[0207] Optionally, the processor 510 is specifically configured to perform at least one of the following:

[0208] When the SCG is in an activated state, the terminal controls the state of some or all of the serving cells of the SCG to be a first state; wherein the first state includes one of the following: a state predefined by a protocol, a state determined according to a radio resource control RRC configuration, and a state determined according to a first media access control control unit MAC CE;

[0209] When the SCG is in a deactivated state, the terminal controls the state of part or all of the service cells of the SCG to be a deactivated state.

[0210] Optionally, the first MAC CE is an SCell activation or deactivation MAC CE, and a reserved bit of the SCell activation or deactivation MAC CE is a first value, which is used to indicate that the SCell activation or deactivation MAC CE is applied to the SCG.

[0211] Optionally, the first MAC CE includes a logical channel identifier LCID field and an indication field, and the LCID field is used to indicate a type or function of the first MAC CE;

[0212] When the LCID domain indicates that the type or function of the first MAC CE is to indicate the status of a service cell of at least one SCG, the indication domain is used to indicate the status of a service cell of at least one SCG; when the LCID domain indicates that the type or function of the first MAC CE is to indicate the status of a specific service cell, the indication domain is used to indicate the status of a specific service cell, and the specific service cell includes a primary or secondary cell PSCell or Scell.

[0213] Optionally, when the LCID field indicates that the type or function of the first MAC CE is to indicate the status of a serving cell of at least one SCG, the indication field includes at least one of the following:

[0214] An SCG identification field, used to indicate the SCG corresponding to the first MAC CE;

[0215] The first field is used to indicate activation or deactivation of the SCG;

[0216] A length field, used to indicate the length of the first MAC CE;

[0217] A serving cell identification field or a serving cell bitmap field, used to indicate a state of at least one serving cell of the SCG, where the state of the serving cell includes an activation state or a deactivation state;

[0218] The bandwidth part BWP identification field is used to indicate the BWP to be activated.

[0219] Optionally, the indication field includes the first field and the serving cell bitmap field, and when the first field indicates deactivation of SCG, the processor 510 is specifically configured to do one of the following:

[0220] Ignore the serving cell bitmap field;

[0221] It is expected that the bit corresponding to the serving cell bitmap field is 0;

[0222] When the bit corresponding to the serving cell bitmap field is not 0, the bit corresponding to the serving cell bitmap field is ignored.

[0223] Optionally, the radio frequency unit 501 is specifically used for:

[0224] The terminal receives the first MAC CE; the type or function of the first MAC CE is to indicate the state of a specific serving cell;

[0225] The processor 510 is specifically configured to:

[0226] Activate or deactivate the SCG where the specific service cell is located.

[0227] Optionally, when the SCG is in a deactivated state, the first configuration received by the radio frequency unit 501 does not trigger activation of the SCell of the SCG, and the first configuration is used to indicate activation of the SCell of the SCG or is used when the SCell of the SCG is in an activated state.

[0228] Optionally, when the radio frequency unit 501 does not receive the second configuration from the network side device, the first state is a state predefined by the protocol, and the second configuration is used to indicate the state of the service cell of the SCG.

[0229] Optionally, the radio frequency unit 501 is further used for:

[0230] Before receiving the first command, sending an SCG activation request to the network side device;

[0231] The SCG activation request carries the following items: an identifier of a service cell expected to be activated, the number of service cells expected to be activated, a set of identifiers of service cells expected to be activated, and a type of service cell expected to be activated.

[0232] Optionally, the processor 510 is specifically configured to perform at least one of the following:

[0233] When the SCG is in an activated state, the terminal switches the bearer type of at least one radio bearer from a separate bearer to an SCG bearer;

[0234] When the SCG is in a deactivated state, the terminal switches the bearer type of at least one radio bearer from an SCG bearer to a separated bearer.

[0235] Optionally, the processor 510 is specifically configured to perform at least one of the following:

[0236] When the SCG is in an activated state, the terminal activates a PDCP duplication function of at least one radio bearer;

[0237] When the SCG is in a deactivated state, the terminal deactivates a PDCP duplication function of at least one radio bearer.

[0238] Optionally, the processor 510 is specifically configured to perform at least one of the following:

[0239] When the SCG is in an activated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal activates the PDCP duplication function of at least one of the separated radio bearers;

[0240] When the SCG is in an activated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal activates the PDCP duplication function of at least one SCG RLC entity corresponding to the separated radio bearer.

[0241] Optionally, the processor 510 is specifically configured to perform at least one of the following:

[0242] When the SCG is in a deactivated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal deactivates the PDCP duplication function of at least one of the separated radio bearers;

[0243] When the SCG is in a deactivated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal deactivates the PDCP duplication function of at least one SCG RLC entity corresponding to the separated radio bearer.

[0244] Optionally, the processor 510 is specifically configured to perform at least one of the following:

[0245] When the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal performs at least one of measurement and measurement reporting;

[0246] When the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal cancels the relaxed measurement.

[0247] Optionally, the processor 510 is specifically configured to:

[0248] When the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal performs at least one of measurement and measurement reporting only within a preset time.

[0249] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned control method embodiment of the secondary cell group is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0250] The processor is the processor in the terminal described in the above embodiment, or the processor in the network side device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0251] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned control method embodiment of the secondary cell group, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0252] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0253] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0254] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network-side device, etc.) to execute the methods described in each embodiment of the present application.

[0255] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A method for controlling a secondary cell group, characterized in that: include: The terminal receives a first command; The terminal controls the state of the secondary cell group SCG according to the first command; The terminal performs a first operation according to the state of the SCG, where the first operation includes at least one of the following: Controlling the status of the serving cell of the SCG; performing reconfiguration or switching of radio bearers associated with the SCG; Controls the status of the Packet Data Convergence Protocol duplication function; Perform measurement related operations; The terminal controls the state of the serving cell of the SCG according to the state of the SCG, including at least one of the following: When the SCG is in an activated state, the terminal controls the state of part or all of the SCells of the SCG to be a first state; wherein the first state includes one of the following: a state predefined by a protocol, a state determined according to a radio resource control RRC configuration, and a state determined according to a first media access control control unit MAC CE; When the SCG is in a deactivated state, the terminal controls the states of all SCells of the SCG to be in a deactivated state; The terminal performs reconfiguration or switching of a radio bearer related to the SCG according to a state of the SCG, including at least one of the following: When the SCG is in an activated state, the terminal switches the bearer type of at least one radio bearer from a separate bearer to an SCG bearer; When the SCG is in a deactivated state, the terminal switches the bearer type of at least one radio bearer from an SCG bearer to a separated bearer; The terminal performs measurement-related operations according to the state of the SCG, including at least one of the following: When the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal performs at least one of measurement and measurement reporting; When the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal cancels the relaxed measurement.

2. The method according to claim 1, characterized in that The first MAC CE is an SCell activation or deactivation MAC CE, and when the reserved bit of the SCell activation or deactivation MAC CE is a first value, it is used to indicate that the SCell activation or deactivation MAC CE is applied to the SCG.

3. The method according to claim 1, characterized in that The first MAC CE includes a logical channel identifier LCID field and an indication field, where the LCID field is used to indicate a type or function of the first MAC CE; When the LCID domain indicates that the type or function of the first MAC CE is to indicate the status of a service cell of at least one SCG, the indication domain is used to indicate the status of a service cell of at least one SCG; when the LCID domain indicates that the type or function of the first MAC CE is to indicate the status of a specific service cell, the indication domain is used to indicate the status of a specific service cell, and the specific service cell includes a primary or secondary cell PSCell or Scell.

4. The method according to claim 3, characterized in that When the LCID field indicates that the type or function of the first MAC CE is to indicate the status of a serving cell of at least one SCG, the indication field includes at least one of the following: An SCG identification field, used to indicate the SCG corresponding to the first MAC CE; The first field is used to indicate activation or deactivation of the SCG; A length field, used to indicate the length of the first MAC CE; A serving cell identification field or a serving cell bitmap field, used to indicate a state of at least one serving cell of the SCG, where the state of the serving cell includes an activation state or a deactivation state; The bandwidth part BWP identification field is used to indicate the BWP to be activated.

5. The method according to claim 4, characterized in that The indication field includes the first field and the serving cell bitmap field. When the first field indicates to deactivate the SCG, the terminal performs one of the following operations: Ignore the serving cell bitmap field; It is expected that the bit corresponding to the serving cell bitmap field is 0; When the bit corresponding to the serving cell bitmap field is not 0, the bit corresponding to the serving cell bitmap field is ignored.

6. The method according to claim 3, characterized in that The terminal receives a first command, including: The terminal receives the first MAC CE; the type or function of the first MAC CE is to indicate the state of a specific serving cell; The terminal controls the state of the secondary cell SCG according to the first command, including: The terminal activates or deactivates the SCG where the specific service cell is located.

7. The method according to claim 1, characterized in that When the SCG is in a deactivated state, the first configuration received by the terminal does not trigger activation of the SCell of the SCG, and the first configuration is used to indicate activation of the SCell of the SCG or is used when the SCell of the SCG is in an activated state.

8. The method according to claim 1, characterized in that In the case that the terminal does not receive the second configuration from the network side device, the first state is a state predefined by the protocol, and the second configuration is used to indicate the state of the service cell of the SCG.

9. The method according to claim 1, characterized in that: Before the terminal receives the first command, the method further includes: The terminal sends an SCG activation request to the network side device; The SCG activation request carries the following items: an identifier of a service cell expected to be activated, the number of service cells expected to be activated, a set of identifiers of service cells expected to be activated, and a type of service cell expected to be activated.

10. The method according to claim 1, characterized in that The terminal controls the state of the PDCP duplication function according to the state of the SCG, including at least one of the following: When the SCG is in an activated state, the terminal activates a PDCP duplication function of at least one radio bearer; When the SCG is in a deactivated state, the terminal deactivates a PDCP duplication function of at least one radio bearer.

11. The method according to claim 10, characterized in that When the SCG is in an activated state, the terminal activates a PDCP duplication function of at least one radio bearer, including at least one of the following: When the SCG is in an activated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal activates the PDCP duplication function of at least one of the separated radio bearers; When the SCG is in an activated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal activates the PDCP duplication function of at least one SCG RLC entity corresponding to the separated radio bearer.

12. The method according to claim 10, characterized in that When the SCG is in a deactivated state, the terminal deactivates a PDCP duplication function of at least one radio bearer, including at least one of the following: When the SCG is in a deactivated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal deactivates the PDCP duplication function of at least one of the separated radio bearers; When the SCG is in a deactivated state, if the separated radio bearer is configured with a PDCP duplication function, the terminal deactivates the PDCP duplication function of at least one SCG RLC entity corresponding to the separated radio bearer.

13. The method according to claim 1, characterized in that When the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal performs at least one of measurement and measurement reporting, including: When the SCG is in a deactivated state and the SCG activation request sent by the terminal is rejected, the terminal performs at least one of measurement and measurement reporting only within a preset time.

14. A control device for a secondary cell group, characterized in that: include: A receiving module, configured to receive a first command; A control module, configured to control the state of the secondary cell group SCG according to the first command; An execution module is configured to execute a first operation according to the state of the SCG, where the first operation includes at least one of the following: Controlling the status of the serving cell of the SCG; performing reconfiguration or switching of radio bearers associated with the SCG; Controls the status of the Packet Data Convergence Protocol duplication function; Perform measurement related operations; The execution module is specifically used for at least one of the following: When the SCG is in an activated state, controlling the state of part or all of the SCells of the SCG to be in a first state; wherein the first state includes one of the following: a state predefined by a protocol, a state determined according to a radio resource control RRC configuration, and a state determined according to a first media access control control unit MAC CE; When the SCG is in a deactivated state, controlling the state of some or all SCells of the SCG to be in a deactivated state; When the SCG is in an activated state, switching the bearer type of at least one radio bearer from a separate bearer to an SCG bearer; When the SCG is in a deactivated state, switching the bearer type of at least one radio bearer from an SCG bearer to a separated bearer; When the SCG is in a deactivated state and the sent SCG activation request is rejected, performing at least one of measurement and measurement reporting; In the case where the SCG is in a deactivated state and the sent SCG activation request is rejected, the relaxed measurement is canceled.

15. The device according to claim 14, characterized in that The first MAC CE is an SCell activation or deactivation MAC CE, and when the reserved bit of the SCell activation or deactivation MAC CE is a first value, it is used to indicate that the SCell activation or deactivation MAC CE is applied to the SCG.

16. The device according to claim 14, characterized in that The first MAC CE includes a logical channel identifier LCID field and an indication field, where the LCID field is used to indicate a type or function of the first MAC CE; When the LCID domain indicates that the type or function of the first MAC CE is to indicate the status of the service cell of at least one SCG, the indication domain is used to indicate the status of the service cell of at least one SCG; when the LCID domain indicates that the first MAC CE is the second MAC CE, the indication domain is used to indicate the status of a specific service cell, and the specific service cell includes a primary or secondary cell PSCell or Scell.

17. The device according to claim 16, characterized in that When the LCID field indicates that the type or function of the first MAC CE is to indicate the status of a serving cell of at least one SCG, the indication field includes at least one of the following: An SCG identification field, used to indicate the SCG corresponding to the first MAC CE; The first field is used to indicate activation or deactivation of the SCG; A length field, used to indicate the length of the first MAC CE; A serving cell identification field or a serving cell bitmap field, used to indicate a state of at least one serving cell of the SCG, where the state of the serving cell includes an activation state or a deactivation state; The bandwidth part BWP identification field is used to indicate the BWP to be activated.

18. The device according to claim 17, characterized in that The indication field includes the first field and the serving cell bitmap field, and when the first field indicates to deactivate the SCG, the device performs one of the following: Ignore the serving cell bitmap field; It is expected that the bit corresponding to the serving cell bitmap field is 0; When the bit corresponding to the serving cell bitmap field is not 0, the bit corresponding to the serving cell bitmap field is ignored.

19. The device according to claim 16, characterized in that The receiving module is specifically used for: receiving the first MAC CE; the type or function of the first MAC CE is to indicate the state of a specific serving cell; The control module is specifically used for: Activate or deactivate the SCG where the specific service cell is located.

20. The device according to claim 14, characterized in that When the SCG is in a deactivated state, the first configuration received by the device does not trigger activation of the SCell of the SCG, and the first configuration is used to indicate activation of the SCell of the SCG or is used when the SCell of the SCG is in an activated state.

21. The device according to claim 14, characterized in that In the case where the second configuration is not received from the network side device, the first state is a state predefined by the protocol, and the second configuration is used to indicate the state of the service cell of the SCG.

22. The device according to claim 14, characterized in that The device also includes: A sending module, used for sending an SCG activation request to a network side device before receiving the first command; The SCG activation request carries the following items: an identifier of a service cell expected to be activated, the number of service cells expected to be activated, a set of identifiers of service cells expected to be activated, and a type of service cell expected to be activated.

23. The device according to claim 14, characterized in that The execution module is specifically used for at least one of the following: When the SCG is in an activated state, activating a PDCP duplication function of at least one radio bearer; When the SCG is in a deactivated state, a PDCP duplication function of at least one radio bearer is deactivated.

24. The device according to claim 23, characterized in that The execution module is specifically used for at least one of the following: When the SCG is in an activated state, if the separated radio bearer is configured with a PDCP duplication function, activating the PDCP duplication function of at least one of the separated radio bearers; When the SCG is in an activated state, if the separated radio bearer is configured with a PDCP duplication function, the PDCP duplication function of at least one SCG RLC entity corresponding to the separated radio bearer is activated.

25. The device according to claim 23, characterized in that The execution module is specifically used for at least one of the following: When the SCG is in a deactivated state, if the separated radio bearer is configured with a PDCP duplication function, deactivate the PDCP duplication function of at least one of the separated radio bearers; When the SCG is in a deactivated state, if the separated radio bearer is configured with a PDCP duplication function, the PDCP duplication function of at least one SCG RLC entity corresponding to the separated radio bearer is deactivated.

26. The device according to claim 14, characterized in that The execution module is specifically used for: When the SCG is in a deactivated state and the sent SCG activation request is rejected, at least one of measurement and measurement reporting is performed only within a preset time.

27. A terminal, characterized in that: It comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method for controlling the secondary cell group as claimed in any one of claims 1 to 13.

28. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by the processor, the method for controlling the secondary cell group according to any one of claims 1 to 13 is implemented.

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