CN115551025A

CN115551025A - Information feedback method, device, chip and module equipment

Info

Publication number: CN115551025A
Application number: CN202110724458.1A
Authority: CN
Inventors: 范伟
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-12-30

Abstract

The application discloses a method, a device, a chip and module equipment for information feedback, wherein the method comprises the following steps: the method comprises the steps that a terminal device sends first information to a network device, wherein the first information indicates the reason for releasing or rejecting a secondary cell group SCG (cell group gateway), and/or the first information indicates the reason for releasing or rejecting a first cell by the terminal device, and the first cell comprises one or more cells of a secondary cell SCell (cell), an auxiliary uplink SUL (cell uplink) cell or an auxiliary downlink SDL (cell downlink); the terminal device releases or rejects the SCG, and/or the terminal device releases or rejects the first cell. By adopting the method described by the application, the network equipment can accurately determine the reason for the terminal equipment to actively release or reject the first cell or the auxiliary cell group.

Description

Information feedback method, device, chip and module equipment

Technical Field

The present invention relates to the field of communications, and in particular, to a method, an apparatus, a chip, and a module device for information feedback.

Background

With the continuous development of the era, more and more terminal devices can support dual-card dual-standby, and one terminal device can simultaneously connect signals from two communication networks through two built-in Universal Subscriber Identity Modules (USIMs).

Dual-Connectivity (DC) refers to two base stations simultaneously performing uplink and downlink data transmission with one terminal device through cooperation. In New Radio (NR) that has been newly developed, LTE-NR Dual Connectivity (EN-DC), NR-LTE Dual Connectivity (NE-DC), and NR-NR Dual Connectivity (NR-NR Dual Connectivity, NR-DC) are introduced. In EN-DC, an LTE evolved Node B (eNB) is used as a master base station, and an NR next generation base station (gNB) is used as a slave base station. Similarly, in NE-DC, the gNB of NR serves as the primary base station, and the eNB of LTE serves as the secondary base station; in NR-DC, both the primary and secondary base stations are the gnbs of the NR. The terminal equipment supporting double connection can be connected with two base stations simultaneously, and the throughput of a single user is increased.

Carrier Aggregation (CA) is a method of aggregating a plurality of continuous or discontinuous carriers into a larger bandwidth, so that when the entire network resources are not fully occupied, the utilization rate of the entire network resources can be greatly improved, and the user peak rate experience is improved; meanwhile, the utilization rate of the discrete spectrum can be improved by carrier aggregation. The CA is implemented in such a manner that a plurality of serving cells configured for one terminal device by a network device belong to the same base station, so that the terminal device can simultaneously use spectrum resources of the plurality of serving cells to perform data transmission, thereby improving throughput of data transmission and reception.

In general, a terminal device only has a function of simultaneously transmitting uplink signals through two transceiving channels. As shown in fig. 1, in the case of single-card dual connectivity, a terminal device may connect a Master Cell Group (MCG) through one transceiving channel, where the MCG includes multiple cells that are combined together through a CA technology, and connect a Slave Cell Group (SCG) through another transceiving channel, where the SCG also includes multiple cells that are combined together through a CA technology. However, under the condition of dual-card dual-standby, if the connection of one USIM card of the terminal device occupies two transceiving channels, the other USIM card cannot work, and therefore, the terminal device actively releases the configured or activated SCG or Secondary Cell (SCell) and rejects the SCG or SCell newly configured for the terminal device by the network device. The Network device may misinterpret the reason why the terminal device releases or rejects the SCG or the SCell as that the SCG or the SCell has a certain problem, for example, it may misinterpret that the circuit connection of the SCG or the SCell is unstable, or the wireless signal strength or quality is not good, and in addition, due to the misinterpretation of the terminal device by the Network device, the normal operation of the Self-Organization Network (SON) function of the operator may be affected.

Disclosure of Invention

The application provides an information feedback method, an information feedback device, a chip and module equipment, which are beneficial for network equipment to accurately determine the reason why terminal equipment actively releases or rejects a cell or an auxiliary cell group.

In a first aspect, the present application provides a method for information feedback, including: the method comprises the steps that a terminal device sends first information to a network device, wherein the first information indicates the reason for releasing or rejecting a secondary cell group SCG (cell group gateway), and/or the first information indicates the reason for releasing or rejecting a first cell by the terminal device, and the first cell comprises one or more cells of a secondary cell SCell (cell), an auxiliary uplink SUL (cell uplink) cell or an auxiliary downlink SDL (cell downlink); the terminal device releases or rejects the SCG, and/or the terminal device releases or rejects the first cell.

Based on the method described in the application, the network equipment can accurately determine the reason for the terminal equipment to actively release or reject the cell or the auxiliary cell group.

In one possible implementation, the first information further indicates one or more of the following information: the SCG and/or the identifier corresponding to the first cell, a potential handover object, or capability information of the terminal device.

In one possible implementation, the cause includes one or more of the following cells: the terminal equipment is in a multi-card multi-standby multi-communication state; the terminal device temporarily does not support the SCG and/or the configuration corresponding to the first cell.

In one possible implementation, the first information is in any one of the following signaling: a control cell MAC CE for media access control, a radio resource control RRC reestablishment completion message, a RRC recovery completion message, a RRC connection reestablishment completion message, a MAC control information element MAC CE for media access control an RRC connection reestablishment ending message, an RRC connection recovery completing message, an SCG configuration failure message, a master cell group MCG configuration failure message or a condition switching related signaling.

In one possible implementation, the first information is in a newly added cell in the signaling.

In a possible implementation manner, the first information is in the MAC CE signaling, and the MAC CE signaling is a new signaling.

In a possible implementation manner, when the terminal device releases or rejects the SCG, and/or when the terminal device releases or rejects the first cell, the step includes: and when the terminal equipment sends the first information to the network equipment, the terminal equipment releases or rejects the SCG, and/or the terminal equipment releases or rejects the first cell.

In a possible implementation manner, when the terminal device rejects the first cell, the step includes: the terminal device sets the state of the first cell to a dormant state or an inactive state, or the terminal device sets the partial bandwidth BWP of the first cell to a dormant BWP.

In a second aspect, the present application further provides a communication device, comprising a communication unit and a processing unit, wherein: the communication unit is configured to send first information to a network device, where the first information indicates a reason for a terminal device to release or reject a secondary cell group SCG, and/or the first information indicates a reason for the terminal device to release or reject a first cell, where the first cell includes one or more of a secondary cell SCell, an auxiliary uplink SUL cell, and an auxiliary downlink SDL cell; the processing unit is configured to release or reject the SCG, and/or the terminal device releases or rejects the first cell.

In a third aspect, the present application further provides a chip, where the chip is configured to send, to a network device, first information, where the first information indicates a reason for a terminal device to release or reject a secondary cell group SCG, and/or the first information indicates a reason for the terminal device to release or reject a first cell, where the first cell includes one or more of a secondary cell SCell, an auxiliary uplink SUL cell, or an auxiliary downlink SDL cell; the chip is further configured to release or reject the SCG, and/or release or reject the first cell.

In a fourth aspect, the present application further provides a module device, which includes a communication module, a power module, a storage module, and a chip module, wherein: the power module is used for providing electric energy for the module equipment; the storage module is used for storing data and instructions; the communication module is used for carrying out internal communication of the module equipment or is used for carrying out communication between the module equipment and external equipment; this chip module is used for: sending first information to a network device, wherein the first information indicates a reason for releasing or rejecting a Secondary Cell Group (SCG) by a terminal device, and/or the first information indicates a reason for releasing or rejecting a first cell by the terminal device, and the first cell comprises one or more cells of a secondary cell (SCell), an auxiliary uplink (SUL) cell or an auxiliary downlink (SDL) cell; releasing or rejecting the SCG, and/or releasing or rejecting the first cell.

In a fifth aspect, the present application further provides a communication device, including a processor, a memory, and a transceiver; the transceiver is used for receiving channels or signals or transmitting channels or signals; the memory for storing a computer program; the processor is configured to invoke the computer program from the memory to perform the method described in the first aspect.

In a sixth aspect, the present application also provides a computer-readable storage medium having stored thereon a computer program which, when run on a communication apparatus, causes the communication apparatus to perform the method as described in the first aspect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of cell connectivity for a single-card terminal device and a dual-card terminal device;

FIG. 2 is a schematic diagram of a 5G networking scheme;

fig. 3 is a schematic diagram of a network architecture provided by an embodiment of the present application;

fig. 4 is a schematic flowchart of an information feedback method according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another communication device provided in the embodiment of the present application;

fig. 7 is a schematic structural diagram of a module apparatus according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the following examples of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the listed items.

It should be noted that the terms "first," "second," "third," and the like in the description and claims of the present application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than described or illustrated herein. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

First, some terms referred to in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

1. Dual-card dual-standby dual-pass terminal

The dual-card dual-standby dual-channel terminal refers to terminal equipment which supports the following three scenes and can simultaneously superpose the following three scenes. The first scenario is that two cards perform voice service at the same time (i.e. one card supports initiating and receiving voice call on the other card while performing voice service); the second scenario is that two cards can respectively perform voice and data services at the same time (i.e. one card supports to initiate and answer a voice call on the other card under the condition that the communication connection of the packet data service is not interrupted); the third scenario is that two cards can perform data service at the same time (i.e. one card supports the other card to perform transmission of packet data service without interruption of communication connection of packet data service).

2. Carrier Aggregation (CA)

Carrier Aggregation (CA) is a method of aggregating a plurality of continuous or discontinuous carriers into a larger bandwidth, so that when the entire network resources are not fully occupied, the utilization rate of the entire network resources can be greatly improved, and the user peak rate experience is improved; meanwhile, the utilization rate of the discrete frequency spectrum can be improved by carrier aggregation. The CA is implemented in such a manner that a network device configures a plurality of serving cells for a terminal device, and the serving cells belong to the same base station, so that the terminal device can simultaneously use spectrum resources of the serving cells to perform data transmission, thereby improving throughput of data transmission and reception.

3. Dual Connectivity (DC)

DC means that two base stations simultaneously perform uplink and downlink data transmission with one terminal device through cooperation. One base station is a main base station of the user equipment, a Radio Resource Control (RRC) signaling of the terminal equipment is maintained by the base station, and the base station is responsible for configuring measurement configuration of the user equipment; the other base station is the secondary base station of the user equipment and is only responsible for data transmission. The terminal equipment supporting double connection can be connected with two base stations simultaneously, and the throughput of a single user is increased.

In New Radio (NR) that has been newly developed, LTE-NR Dual Connectivity (EN-DC), NR-LTE Dual Connectivity (NE-DC), and NR-NR Dual Connectivity (NR-NR Dual Connectivity, NR-DC) are introduced. In EN-DC, an LTE evolved Node B (eNB) serves as a main base station, and an NR next generation base station (gNB) serves as an auxiliary base station, and in this application scenario, the gNB serving as the auxiliary base station may also configure RRC signaling and may perform direct interaction of the RRC signaling with the user equipment. Similarly, in NE-DC, the gNB of NR serves as the primary base station, and the eNB of LTE serves as the secondary base station; in NR-DC, both the primary and secondary base stations are the gnbs of the NR.

A terminal device supporting dual connectivity can connect two base stations simultaneously, in a dual connectivity scenario, a Cell Group connected to the terminal device is divided into a Master Cell Group (MCG) and a Secondary Cell Group (SCG), the MCG is a Group in which a Cell where the terminal device first initiates random access is located, and the SCG is a Cell Group other than the Master Cell Group. Under the MCG, there may be many cells, one of which is used to initiate initial access, and this Cell is called a Primary Cell (PCell), and the other cells except the PCell are called Secondary cells (scells). The PCell under MCG and the SCell under MCG are combined together through CA technology. Similarly, there is a Cell for initiating initial access under SCG, that is, a Primary Secondary Cell (PSCell), and the PSCell under SCG and the SCell under SCG are also combined together by CA technology.

4. 5G networking mode

3GPP proposes 5G networking architectures such as Option1, option2, option 3/3a/3x, option 4/4a, option5, option 7/7a/7x, etc., as shown in FIG. 2. Wherein, the Option1, the Option2 and the Option5 are independent networking modes (Standalone, SA), and the Option 3/3a/3x, the Option 4/4a and the Option 7/7a/7x are Non-independent networking modes (Non-Standalone, NSA). The SA means networking by building an independent 5G base station mode, and the networking mode can be put into use only by completely building a 5G core network. The networking mode is more invested, and the time for realizing basic coverage is longer. The SA networking model will gradually advance during the popularization of NSA 5G. The NSA refers to networking by integrating a 5G base station and a 4G base station, the networking mode is low in investment and fast in deployment, and the coverage range of the 5G network can be rapidly promoted. NSA is also the leading networking mode of mainstream commercial 5G in most countries today. In fig. 2, the solid line is a user plane representing transmitted data, and the dotted line is a control plane representing a command to transmit management and scheduling data.

The Option1 is a current deployment mode of the 4G network, and is composed of a 4G core network and a 4G base station.

Option2 is 5G independent networking, comprises 5G base station and 5G core network, and the quality of service is better, but the cost is higher.

In Option3, the base stations are divided into a main base station and an auxiliary base station, the base station performing control plane command transmission with the core network is the main station, and the base station performing only data transmission is the auxiliary base station. Due to the limited capability of the traditional 4G base station for processing data, the base station needs to be upgraded and modified by hardware, and becomes an enhanced 4G base station. In Option3, the enhanced 4G base station is used as a main base station, and the newly deployed 5G base station is used as an auxiliary base station, which corresponds to EN-DC in dual connectivity. The

options

3a and 3x are proposed approaches for 4G base stations that are not yet adapted today. The Option3a is that the user plane data of the 5G base station is directly transmitted to the 4G core network or the terminal device without being forwarded through the 4G base station. And Option3x is to divide the user plane data into two parts, and transmit the part of data that can not be transmitted by the 4G base station using the 5G base station, while the rest of data is still transmitted using the 4G base station, and the control plane commands of the two parts are still transmitted by the 4G base station.

The Option4 also divides the base station into a main base station and an auxiliary base station, and the difference from the Option3 is that the 4G base station and the 5G base station of the Option4 share a 5G core network, the 5G base station serves as the main base station, and the 4G base station serves as the auxiliary base station, corresponding to NE-DC in the dual connectivity mode. Since the 5G base station has the function of the 4G base station, the user plane and the control plane of the 4G base station in Option4 are transmitted to the 5G core network through the 5G base station, respectively, while in Option4a, the user plane data of the 4G base station is directly connected to the 5G core network, and the control plane is still transmitted from the 5G base station to the 5G core network.

Option5 may be understood as first deploying a 5G core network and implementing the function of a 4G core network in the 5G core network, and then using an enhanced 4G base station, and then gradually deploying the 5G base station.

The Option7 is similar to the Option3, but the core network in the Option7 is a 5G core network, and since the core network is changed from a 4G core network to a 5G core network, the 4G base station needs to be upgraded to an enhanced 4G base station in order to access the 5G core network. Option7 is applicable to early and middle stages of 5G deployment, where 5G base station coverage is not perfect, but a 5G core network has been deployed.

Because the terminal equipment only has the function of simultaneously transmitting the uplink signals through the two receiving and transmitting channels. Under the condition of dual-card dual-standby bi-pass, if one USIM card of the terminal equipment occupies two transceiving channels, the other USIM card cannot work, so that the terminal equipment actively releases the configured or activated SCG or SCell and rejects the network equipment to newly configure the SCG or SCell for the terminal equipment. The Network device may misinterpret the SCG or SCell as the SCG or SCell is in a certain problem, for example, the SCG or SCell may be misinterpreted that the circuit connection of the SCG or SCell is unstable, or the signal is not good, and in addition, due to the misinterpretation of the terminal device by the Network device, the normal operation of the Self Organization Network (SON) function of the operator may be affected.

In order to enable a network device to accurately determine the reason for rejecting or releasing a terminal device, the embodiment of the application provides an information feedback method and a communication device. In order to better understand the embodiments of the present application, the following description first describes the system architecture of the embodiments of the present application:

the embodiment of the present application may be applied to the network architecture schematic diagram shown in fig. 3, where the network architecture shown in fig. 3 is a network architecture of a wireless communication system, the network architecture generally includes a terminal device and a network device, and the number and the form of each device do not constitute a limitation to the embodiment of the present application. The terminal device is connected with the network device, and the terminal device can acquire data network services through the network device, wherein the network device can provide communication services for a plurality of terminal devices. In the embodiment of the application, a unidirectional communication link from a network device to a terminal device is defined as a downlink, data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called as a downlink direction; and the unidirectional communication link from the terminal device to the network device is an uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is referred to as an uplink direction.

The terminal device in the embodiments of the present application is an entity for receiving or transmitting signals at a user side. The terminal device may be a device providing voice and/or data connectivity to a user, e.g. a handheld device, a vehicle mounted device, etc. with wireless connection capability. The terminal device may also be other processing devices connected to the wireless modem. The terminal device may communicate with a Radio Access Network (RAN). A terminal device may also be referred to as a wireless terminal, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal (remote), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), a user device (user device), or a User Equipment (UE), among others. The terminal equipment may be mobile terminals such as mobile telephones (otherwise known as "cellular" telephones) and computers with mobile terminals, e.g. portable, pocket, hand-held, computer-included or car-mounted mobile devices, which exchange language and/or data with a radio access network. For example, the terminal device may also be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or the like. Common terminal devices include, for example: the mobile terminal includes a mobile phone, a tablet computer, a notebook computer, a handheld computer, a Mobile Internet Device (MID), and a wearable device, such as a smart watch, a smart bracelet, a pedometer, and the like, but the embodiment of the present application is not limited thereto.

The network device related to the embodiment of the present application includes a Base Station (BS), which may be a device deployed in a radio access network and capable of performing wireless communication with a terminal. The base station may have various forms, such as a macro base station, a micro base station, a relay station, an access point, and the like. In the embodiment of the present application, the apparatus for implementing the function of the network device may be a network device; it may also be a device, such as a chip system, capable of supporting the network device to implement the function, and the device may be installed in the network device.

The method provided by the embodiment of the application can be applied to various communication systems, for example, an internet of things (IoT) system, a narrowband band internet of things (NB-IoT) system, a Long Term Evolution (LTE) system, a fifth generation (5 th-generation, 5G) communication system, a hybrid architecture of LTE and 5G, a 5G New Radio (NR) system, a new communication system appearing in future communication development, and the like.

The method for information feedback provided in the embodiments of the present application is further described in detail below:

referring to fig. 4, fig. 4 is a schematic flowchart of an information feedback method according to an embodiment of the present disclosure. As shown in fig. 4, the information feedback method includes the following steps 401 to 402. The main body for executing the method shown in fig. 4 may be a terminal device, or the main body may be a chip in the terminal device. Fig. 4 illustrates an example of an execution subject of the method by the terminal device. The execution main bodies of the information feedback methods shown in other figures in the embodiments of the present application are the same, and will not be described in detail later. Wherein:

401. the terminal device sends the first information to the network device.

In a possible implementation manner, the first information indicates a reason for the terminal device to release or reject the secondary cell group SCG, and/or the first information indicates a reason for the terminal device to release or reject the first cell. By the mode, after the network equipment receives the first information, the network equipment can accurately determine the reason why the terminal equipment actively releases or rejects the SCG or the first cell.

The first information indicates a reason why the terminal device releases or rejects the secondary cell group SCG, which may specifically be: the first information indicates that the terminal device releases the configured SCG, or the first information indicates that the terminal device rejects the newly configured SCG. The first information indicates a reason for the terminal device to release or reject the first cell, which may specifically be: the first information indicates that the terminal device releases the configured first cell, or the first information indicates that the terminal device rejects the newly configured first cell.

The first cell includes one or more of an SCell, a Supplementary Uplink (SUL) cell, and a Supplementary Downlink (SDL) cell. SCell may belong to MCG, or to SCG; the SCell may be a configured and activated cell or a configured and inactivated cell, which is not limited in this application. The SUL cell is a cell for assisting the terminal device to transmit uplink data, and the SDL cell is a cell for assisting the terminal device to transmit downlink data.

Optionally, the first information further indicates one or more of the following information: the SCG and/or the identifier corresponding to the first cell, the potential handover object, or the capability information of the terminal device. By the method, the network equipment can determine the current state of the terminal equipment more clearly, and corresponding configuration or adjustment can be performed according to the state of the terminal equipment in time.

The potential handover target refers to a frequency that the terminal device expects to handover, for example, the potential handover target may be a frequency point corresponding to a measurement target that has been configured by the terminal device. The capability Information of the terminal device refers to capabilities included in the terminal device, for example, band Combination (BC) Information and uplink/downlink parameter Information corresponding to each frequency Band that the terminal device desires to use in the current network environment, supported multiple-Input multiple-Output (MIMO) Information, power Class (Power Class) Information, sounding Reference Signal (SRS) Information, channel State Information-Reference Signal (Channel State Information-Reference Signal) Information, and bandwidth Class (bandwidth Class) Information.

Optionally, the first information is in any one of the following signaling: a Media Access control Element (MAC CE), an RRC reestablishment complete message (rrcconnectionconfiguration complete), an RRC reestablishment end message (rrcconnectionconfigurecomplete), an RRC connection reestablishment complete message (RRCConnectionReestablishmentComplete), an RRC connection reestablishment end message (RRCConnectionReconfigurationComplete), an RRC connection reestablishment complete message (rrcconnectionresumptioncomplete), an SCG configuration failure message, an MCG configuration failure message (MCGFailureInformation), or a conditional handover related signaling. Based on the mode, the terminal equipment can flexibly select the signaling to carry the first information and send the signaling to the network equipment under different conditions, and the network equipment can timely and accurately determine the reason why the terminal equipment initiatively rejects or releases the SCG and/or the first cell.

The RRC reestablishment complete message, the RRC reestablishment end message, and the RRC recovery complete message correspond to signaling in the NR system. The RRC connection re-establishment complete message, the RRC connection re-establishment end message, and the RRC connection restoration complete message correspond to signaling in the LTE system.

The SCG configuration failure message may be any one of a SCGFailureInformation message, a SCGFailureInformation nr message, or a SCGFailureInformationEUTRA message. Besides the signaling described above, the first information may be in other signaling, which is not limited in this embodiment of the application.

Further optionally, the first information is in the MAC CE signaling, and the MAC CE signaling is a new signaling. The new signaling is the new signaling proposed in the embodiment of the present application, and the first information is in the cell of the MAC CE signaling. Or the MAC CE signaling can also multiplex the existing MAC CE signaling, and adds a new cell on the basis of the existing MAC CE, wherein the first information is in the new cell.

Further optionally, when the first information is in a newly added cell in the signaling, that is, when the first information is in any one of the RRC reestablishment completion message, the RRC recovery completion message, the RRC connection reestablishment completion message, the RRC connection recovery completion message, the SCG configuration failure message, the MCG configuration failure message, or the condition switching related signaling, the signaling may reuse the original signaling, and add a new cell on the basis of the original signaling, where the first information is in the newly added cell.

The first information is in an RRC reestablishment complete message or an RRC connection reestablishment complete message, and means that when the terminal device needs to initiate an RRC connection reestablishment process to reject or release the SCG and/or the first cell, the first information may be sent by sending the RRC reestablishment complete message or the RRC connection reestablishment complete message, where the RRC reestablishment complete message or the RRC connection reestablishment complete message carries the first information, and when the network device acquires the first information, a reason why the first terminal device actively releases or actively rejects the SCG and/or the first cell may be determined.

The first information is in an RRC reestablishment end message or an RRC connection reestablishment end message, and means that when the terminal device does not need to initiate an RRC connection reestablishment process to reject or release the SCG and/or the first cell, the first information may be sent to the RRC reestablishment end message or the RRC connection reestablishment end message, where the RRC reestablishment end message or the RRC connection reestablishment end message carries the first information, and when the network device acquires the first information, the reason why the first terminal device actively releases or actively rejects the SCG and/or the first cell may be accurately determined.

The first message is in an RRC connection recovery complete message or an RRC connection recovery complete message, and means that the terminal device sends the RRC connection recovery complete message or the RRC connection recovery complete message to the network device after the RRC connection recovery is completed, where the RRC connection recovery complete message or the RRC connection recovery complete message carries first information, and when the network device acquires the first information, the reason why the first terminal device actively releases or actively rejects the SCG and/or the first cell may be accurately determined.

When the terminal device does not need to initiate the RRC connection reestablishment process to reject or release the SCG and/or the first cell, the terminal device may send the SCG configuration failure message by triggering the SCG configuration failure process, where the first information is in the SCG configuration failure message, and when the network device acquires the first information, the first information may accurately determine the reason why the first terminal device actively releases or actively rejects the SCG and/or the first cell.

The first information is in an MCG configuration failure message, which means that when the terminal device triggers an MCG failure recovery process when rejecting the SCG and/or the first cell, the MCG configuration failure message is sent, where the MCG configuration failure message carries the first information, and when the network device acquires the first information, the reason why the first terminal device actively releases or actively rejects the SCG and/or the first cell can be accurately determined.

The first information is in a conditional handover related signaling, when the network device configures conditional handover for the terminal device, if the terminal device determines that the network device configures multiple candidate cells or at least one SCG in the multiple candidate cell groups for the terminal device and/or the first cell cannot be used as a handover target according to a current situation, the conditional handover related signaling may be sent to the network device, where the conditional handover related signaling carries the first information, and when the network device acquires the first information, a reason why the terminal device actively releases or rejects the candidate SCG and/or the first cell may be determined. The signaling related to conditional handover may be a Measurement Report (Measurement Report) sent by the terminal device when the conditional handover is configured.

Optionally, the reason indicated by the first information includes one or more of the following: the terminal equipment is in a multi-card multi-standby multi-communication state; the terminal device does not support the SCG and/or the configuration corresponding to the first cell for the time being.

The terminal device does not support the corresponding configuration of the SCG and/or the first cell for the moment, which means that the current multiple transceiving channels of the terminal device are all occupied by the connection established by one USIM card in the terminal device, or that the communication of the USIM card requires corresponding hardware devices, so that other USIM cards cannot use the corresponding hardware devices or must use the corresponding hardware devices, and the current SCG and/or the hardware devices of the first cell cannot support the terminal device. The hardware device may be a device for supporting a certain frequency band, a device for supporting a transmission path, and a device for supporting a reception path, and thus may be embodied to notify a specific supportable/unsupported frequency band, a supportable/unsupported MIMO Layer number (which may be for a certain frequency band), and a supportable/unsupported carrier number (which may be for a certain frequency band). By the method, the network equipment can accurately determine the reason for the terminal equipment to actively release or actively reject the SCG and/or the first cell.

402. The terminal device releases or rejects the SCG and/or the terminal device releases or rejects the first cell.

In this embodiment of the present application, the execution sequence of step 401 and step 402 is not limited, for example, step 402 may be executed first, and then step 401 is executed, or step 401 and step 402 are executed simultaneously.

In this embodiment of the present application, the terminal device releases or rejects the SCG, and/or the terminal device releases or rejects the first cell, there are three possible implementation cases, and one case is: the terminal equipment only releases or rejects the SCG, and in another case, the terminal equipment only releases or rejects the first cell, and in yet another case, the terminal equipment releases or rejects the SCG and also releases or rejects the first cell.

In a possible implementation manner, a specific implementation manner of the terminal device releasing or rejecting the first cell is as follows: and after the terminal equipment sends the first information to the network equipment, the terminal equipment releases or rejects the first cell after waiting for a preset time. Based on the mode, the state information of the network equipment and the state information of the terminal equipment to the first cell can be kept consistent.

Optionally, the specific implementation manner of rejecting the first cell after the terminal device waits for the preset time may be: after waiting for a preset time, the terminal device sets the state of the first cell to a Dormant state (Dormant) or inactive (Deactivated) state, or switches the Bandwidth Part (BWP) of the first cell to a Dormant BWP (Dormant BWP). When the state of the terminal equipment is changed and the first cell can be connected, the terminal equipment can change the state of the first cell into an activated state in time, and based on the mode, the configuration of the terminal equipment to the cell is more flexible. In the LTE system, the terminal device sets the state of the first cell to a dormant state or an inactive state, or in the NR system, the terminal device sets the BWP of the first cell to a dormant BWP.

In a possible implementation manner, the terminal device may employ different signaling to send to the network device according to the type of the first cell or SCG rejected or released and the manner of rejection or release. The first cell or SCG mode rejected or released by the terminal device may include: the terminal equipment directly performs RRC connection reestablishment, and the mode can completely reject the first cell or SCG; alternatively, the terminal device may set the first cell to an inactive state or a dormant state without RRC connection re-establishment, or may set the first cell BWP to a dormant BWP, and then notify the network device through related signaling.

Optionally, if the first cell released or rejected by the terminal device is an SCell in the MCG, the terminal device may reject or release the SCell in any one of the following manners: one mode is that the terminal equipment initiates an RRC connection reestablishment process, and an RRC reestablishment completion message or an RRC connection reestablishment completion message which needs to be sent in the RRC connection reestablishment process carries first information; the other mode is that the terminal equipment does not need to perform RRC connection reestablishment, but sends an RRC reestablishment end message or an RRC connection reestablishment end message to the network equipment, the RRC reestablishment end message or the RRC connection reestablishment end message carries first information, and the terminal equipment can directly set the state of the SCell to be in an inactive state without following the configuration of an SCell activation state indication cell sent by the network equipment; in another mode, the terminal device sends an RRC reestablishment end message or an RRC connection reestablishment end message without performing RRC connection reestablishment, where the RRC reestablishment end message or the RRC connection reestablishment end message carries the first information, and in an LTE system, the terminal device may directly set the state of the SCell to the dormant state without following the configuration of an SCell activation state indication cell sent by the network device, or, in an NR system, if the network device configures a dormant BWP configuration (dormant BWP-configuration) cell, the terminal device may directly set the first active BWP of the SCell to the dormant BWP without following the configuration of a first active downlink BWP identification (first active downlink BWP-Id) cell sent by the network device; in another mode, the terminal device sends an RRC reestablishment complete message or an RRC connection reestablishment complete message to the network device without performing RRC connection reestablishment, where the RRC reestablishment complete message or the RRC connection reestablishment complete message carries the first information, and the terminal device does not process the SCell configuration, which is equivalent to that the terminal device does not receive the SCell configuration sent by the network device.

Optionally, if the terminal device releases or rejects the SCG, the terminal device may reject or release the SCG in any one of the following manners: one way is that the terminal device may initiate an RRC connection re-establishment procedure, where an RRC reestablishment complete message or an RRC connection re-establishment complete message sent in the RRC connection re-establishment procedure carries the first information; in another mode, the terminal device does not need to perform RRC connection reestablishment, and may carry the first information in sending an RRC reestablishment end message or an RRC connection reestablishment end message to the network device; another way is that the terminal device does not need to perform RRC connection reestablishment, but sends an SCG configuration failure message before or after sending the RRC reestablishment end message or the RRC connection reestablishment end message, where the SCG configuration failure message may be any one of an SCGFailureInformation message, an SCGFailureInformationNR message, or an SCGFailureInformationEUTRA message, and the SCG configuration message carries the first information.

Optionally, if the first cell released or rejected by the terminal device is an SCell in the SCG, the terminal device may reject or release the SCell in any of the following manners: one mode is that the terminal equipment initiates an RRC connection reestablishment process, and an RRC reestablishment completion message or an RRC connection reestablishment completion message sent in the RRC connection reestablishment process carries first information; in another mode, the terminal device does not need to perform RRC connection reestablishment, and may send an RRC reestablishment end message or an RRC connection reestablishment end message to the network device, where the RRC reestablishment end message carries the first information; another way is that, the terminal device does not need to perform RRC connection reestablishment, but sends an SCG configuration failure message before or after sending the RRC reestablishment end message or the RRC connection reestablishment end message, where the SCG configuration failure message carries the first information, where the RRC reestablishment end message or the RRC connection reestablishment end message may carry the first information or may not carry the first information, and the SCG configuration failure message may be any one of a SCGFailureInformation message, a SCGFailureInformationNR message, or a SCGFailureInformationEUTRA message.

The manner in which the terminal device rejects the first cell or the SCG is a possibility provided in the embodiment of the present application, and the manner in which the terminal device rejects the first cell or the SCG may also have other manners, which is not limited herein in the embodiment of the present application.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication apparatus shown in fig. 5 may be used to perform part or all of the functions of the terminal device described above. The device may be a network device, a device in the network device, or a device capable of being used in cooperation with the network device. Wherein, the communication device can also be a chip system. The communication device shown in fig. 5 may comprise a communication unit 501 and a processing unit 502. The processing unit 502 is configured to perform data processing. A communication unit 501, configured to communicate with other devices. The communication unit 501 is integrated with a receiving unit and a transmitting unit. The communication unit 501 may also be referred to as a transceiving unit. Alternatively, communication section 501 may be divided into a reception section and a transmission section. The processing unit 502 and the communication unit 501 are similar in structure, and are not described in detail below. Wherein:

the communication unit 501 is configured to send first information to a network device, where the first information indicates a reason for a terminal device to release or reject a secondary cell group SCG, and/or the first information indicates a reason for the terminal device to release or reject a first cell, where the first cell includes one or more of a secondary cell SCell, an auxiliary uplink SUL cell, and an auxiliary downlink SDL cell; the processing unit 502 is configured to release or reject the SCG, and/or release or reject the first cell.

Optionally, the first information indicates a reason for the terminal device to release or reject the secondary cell SCell, and the first information further indicates one or more of the following information: identification corresponding to the SCell, potential handover object and capability information of the terminal equipment.

Optionally, the reason includes one or more of: the terminal equipment is in a multi-card multi-standby multi-communication state; the terminal device temporarily does not support the SCG and/or the configuration corresponding to the first cell.

Optionally, the first information is in any one of the following signaling: MAC CE for media access control, RRC reestablishment completion message, RRC reestablishment end message, RRC recovery completion message, RRC connection reestablishment end message, RRC connection recovery completion message, SCG configuration failure message, master cell group MCG configuration failure message, or related signaling for conditional handover

Optionally, the first information is in a newly added cell in the signaling.

Optionally, the first information is in the MAC CE signaling, and the MAC CE signaling is a new signaling.

In a possible implementation manner, when the processing unit 502 releases or rejects the SCG, and/or releases or rejects the first cell, the processing unit 502 is specifically configured to: and after the first information is sent to the network equipment, releasing or rejecting the SCG and/or releasing or rejecting the first cell.

In a possible implementation manner, the processing unit 502 is configured to reject the first cell after waiting for a preset time, and the processing unit 502 is specifically configured to: the state of the first cell is set to a dormant state or an inactive state, or the partial bandwidth BWP of the first cell is set to a dormant BWP.

The embodiment of the present application further provides a chip, where the chip may perform relevant steps of the terminal device in the foregoing method embodiment.

The chip is configured to send first information to a network device, where the first information indicates a reason for a terminal device to release or reject a secondary cell group SCG, and/or the first information indicates a reason for the terminal device to release or reject a first cell, where the first cell includes one or more of a secondary cell SCell, an auxiliary uplink SUL cell, and an auxiliary downlink SDL cell; the chip is configured to release or reject the SCG, and/or release or reject the first cell.

Optionally, the first information is in any one of the following signaling: a control cell MAC CE for media access control, a radio resource control RRC reestablishment completion message, a RRC recovery completion message, a RRC connection reestablishment completion message, a MAC control information element MAC CE for media access control an RRC connection reestablishment ending message, an RRC connection recovery completing message, an SCG configuration failure message, a master cell group MCG configuration failure message or a condition switching related signaling.

Optionally, the first information is in a newly added cell in the signaling.

In a possible implementation manner, when the chip releases or rejects the SCG, and/or releases or rejects the first cell, the chip is specifically configured to: and after the first information is sent to the network equipment, releasing or rejecting the SCG and/or releasing or rejecting the first cell.

In a possible implementation manner, the chip is configured to reject the first cell after waiting for a preset time, and the chip is specifically configured to: the state of the first cell is set to a dormant state or an inactive state, or a partial bandwidth BWP of the first cell is set to a dormant BWP.

Fig. 6 shows a communication apparatus 60 according to an embodiment of the present application, which is used for implementing the above-mentioned terminal device function. The apparatus may be a terminal device or an apparatus for a terminal device. The means for the terminal device may be a system of chips or a chip within the terminal device. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

The communication device may also be configured to implement the network device function. The apparatus may be a network device or an apparatus for a network device. The means for the network device may be a system-on-chip or a chip within the network device. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

The communication device 60 includes at least one processor 620, which is configured to implement the data processing function of the terminal device in the method provided by the embodiment of the present application. The apparatus 60 may further include a communication interface 610, configured to implement transceiving operations of a terminal device in the method provided in the embodiment of the present application. In embodiments of the present application, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface for communicating with other devices over a transmission medium. For example, the communication interface 610 is used for devices in the apparatus 60 to communicate with other devices. The processor 620 utilizes the communication interface 610 to send and receive data and is configured to implement the method described in the method embodiment above with respect to fig. 2.

The apparatus 60 may also include at least one memory 630 for storing program instructions and/or data. Memory 630 is coupled to processor 620. The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, and may be an electrical, mechanical or other form for information interaction between the devices, units or modules. The processor 620 may operate in conjunction with the memory 630. Processor 620 may execute program instructions stored in memory 630. At least one of the at least one memory may be included in the processor.

When the device 60 is powered on, the processor 620 can read the software programs stored in the memory 630, interpret and execute the instructions of the software programs, and process the data of the software programs. When data needs to be sent wirelessly, the processor 620 performs baseband processing on the data to be sent, and outputs a baseband signal to a radio frequency circuit (not shown), and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through an antenna. When there is data to be sent to the apparatus 60, the rf circuit receives an rf signal through the antenna, converts the rf signal into a baseband signal, and outputs the baseband signal to the processor 620, and the processor 620 converts the baseband signal into data and processes the data.

In another implementation, the rf circuitry and antenna may be provided independently of the processor 620 performing baseband processing, for example in a distributed scenario, the rf circuitry and antenna may be in a remote arrangement independent of the communication device.

The specific connection medium among the communication interface 610, the processor 620 and the memory 630 is not limited in the embodiments of the present application. In fig. 6, the memory 630, the processor 620 and the communication interface 610 are connected by a bus 640, the bus is indicated by a thick line in fig. 6, and the connection manner between other components is only schematically illustrated and not limited. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.

When the apparatus 60 is specifically used in a terminal device, for example, when the apparatus 60 is specifically a chip or a chip system, the output or the reception of the communication interface 610 may be a baseband signal. When the apparatus 60 is a terminal device, the communication interface 610 may output or receive radio frequency signals. In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, operations, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The operations of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.

It should be noted that, the communication apparatus may perform relevant steps of the terminal device or the access network device in the foregoing method embodiments, which may specifically refer to implementation manners provided in the foregoing steps, and details are not described herein again.

For each device or product applied to or integrated in the communication device, each module included in the device or product may be implemented by hardware such as a circuit, different modules may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least a part of the modules may be implemented by a software program running on a processor integrated in the terminal, and the rest (if any) of the modules may be implemented by hardware such as a circuit.

As shown in fig. 7, fig. 7 is a schematic structural diagram of a module device according to an embodiment of the present disclosure. The module device 70 may perform the relevant steps of the network device in the foregoing method embodiments, where the module device 70 includes: a communication module 701, a power module 702, a memory module 703 and a chip module 704.

The power module 702 is configured to provide power for the module device; the storage module 703 is used for storing data and instructions; the communication module 701 is used for performing module device internal communication, or is used for performing module device and external device communication.

The chip module 704 is used for:

the chip module 704 is configured to send first information to a network device, where the first information indicates a reason for a terminal device to release or reject an secondary cell group SCG, and/or the first information indicates a reason for the terminal device to release or reject a first cell, where the first cell includes one or more of a secondary cell SCell, an auxiliary uplink SUL cell, and an auxiliary downlink SDL cell; the chip module 704 is configured to release or reject the SCG, and/or release or reject the first cell.

Optionally, the first information is in any one of the following signaling: the method comprises the following steps of media access control cell MAC CE, radio resource control RRC reestablishment completion message, RRC reestablishment end message, RRC recovery completion message, RRC connection reestablishment end message, RRC connection recovery completion message, SCG configuration failure message, master cell group MCG configuration failure message or condition switching related signaling.

Optionally, the first information is in a newly added cell in the signaling.

In a possible implementation manner, when the chip module 704 releases or rejects the SCG, and/or releases or rejects the first cell, the chip module 704 is specifically configured to: and after the first information is sent to the network equipment, releasing or rejecting the SCG and/or releasing or rejecting the first cell.

In a possible implementation manner, the chip module 704 is configured to reject the first cell after waiting for a preset time, and the chip module 704 is specifically configured to: the state of the first cell is set to a dormant state or an inactive state, or the partial bandwidth BWP of the first cell is set to a dormant BWP.

Embodiments of the present application further provide a computer-readable storage medium, in which instructions are stored, and when the computer-readable storage medium is executed on a processor, the method flow of the above method embodiments is implemented.

Embodiments of the present application further provide a computer program product, where when the computer program product runs on a processor, the method flow of the above method embodiments is implemented.

It is noted that, for simplicity of explanation, the foregoing method embodiments are described as a series of acts or combination of acts, but those skilled in the art will appreciate that the present application is not limited by the order of acts, as some acts may, in accordance with the present application, occur in other orders and/or concurrently. Further, those skilled in the art will recognize that the embodiments described in this specification are preferred embodiments and that acts or modules referred to are not necessarily required for this application.

The descriptions of the embodiments provided in the present application may be referred to each other, and the descriptions of the embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. For convenience and brevity of description, for example, the functions and operations performed by the devices and apparatuses provided in the embodiments of the present application may refer to the related descriptions of the method embodiments of the present application, and may also be referred to, combined with or cited among the method embodiments and the device embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for information feedback, the method comprising:

the method comprises the steps that a terminal device sends first information to a network device, wherein the first information indicates a reason for releasing or rejecting a secondary cell group SCG (serving cell group) by the terminal device and/or indicates a reason for releasing or rejecting a first cell by the terminal device, and the first cell comprises one or more cells of a secondary cell (SCell), an auxiliary uplink SUL (small uplink) cell or an auxiliary downlink SDL (secondary cell);

the terminal equipment releases or rejects the SCG, and/or the terminal equipment releases or rejects the first cell.

2. The method of claim 1, wherein the first information further indicates one or more of the following: the SCG and/or the identifier corresponding to the first cell, the potential handover object or the capability information of the terminal device.

3. The method of claim 2, wherein the cause comprises one or more of:

the terminal equipment is in a multi-card multi-standby multi-communication state;

the terminal device does not support the configuration corresponding to the SCG and/or the first cell for the time being.

4. The method according to any one of claims 2 or 3, wherein the first information is in any one of the following signaling: the method comprises the following steps of controlling a media access control cell MACCE, a radio resource control RRC reestablishment completion message, an RRC reestablishment end message, an RRC recovery completion message, an RRC connection reestablishment end message, an RRC connection recovery completion message, an SCG configuration failure message, a master cell group MCG configuration failure message or a condition switching related signaling.

5. The method of claim 4, wherein the first information is in a new cell in the signaling.

6. The method of claim 4, wherein the first information is in the MAC CE signaling, and wherein the MAC CE signaling is new signaling.

7. The method according to any one of claims 2 to 6, wherein the terminal device releases or rejects the SCG, and/or the terminal device releases or rejects the first cell, comprises:

and when the terminal equipment sends the first information to the network equipment, the terminal equipment releases or rejects the SCG, and/or the terminal equipment releases or rejects the first cell.

8. The method according to any one of claims 2 to 7, wherein the rejecting of the first cell by the terminal device comprises:

the terminal device sets the state of the first cell to a dormant state or an inactive state, or the terminal device sets a partial bandwidth BWP of the first cell to a dormant BWP.

9. A communication apparatus, characterized in that the communication apparatus comprises a communication unit and a processing unit, wherein:

the communication unit is configured to send first information to a network device, where the first information indicates a reason for releasing or rejecting a secondary cell group SCG by a terminal device, and/or the first information indicates a reason for releasing or rejecting a first cell by the terminal device, where the first cell includes one or more of a secondary cell SCell, an auxiliary uplink SUL cell, and an auxiliary downlink SDL cell;

the processing unit is configured to release or reject the SCG, and/or release or reject the first cell.

10. A communication device comprising a processor, a memory, and a transceiver;

the transceiver is used for receiving channels or signals or sending channels or signals;

the memory for storing a computer program;

the processor for invoking the computer program from the memory to perform the method of any of claims 1-8.

11. A chip, characterized in that,

the chip is configured to send first information to a network device, where the first information indicates a reason for a terminal device to release or reject a secondary cell group SCG, and/or the first information indicates a reason for the terminal device to release or reject a first cell, where the first cell includes one or more of a secondary cell SCell, an auxiliary uplink SUL cell, and an auxiliary downlink SDL cell;

the chip is further configured to release or reject the SCG, and/or release or reject the first cell.

12. The utility model provides a module equipment, its characterized in that, module equipment includes communication module, power module, storage module and chip module, wherein:

the power supply module is used for providing electric energy for the module equipment;

the storage module is used for storing data and instructions;

the communication module is used for carrying out internal communication of module equipment or is used for carrying out communication between the module equipment and external equipment;

the chip module is used for:

sending first information to a network device, wherein the first information indicates a reason for releasing or rejecting a Secondary Cell Group (SCG) by a terminal device, and/or the first information indicates a reason for releasing or rejecting a first cell by the terminal device, and the first cell comprises one or more cells of a secondary cell (SCell), an auxiliary uplink (SUL) cell or an auxiliary downlink (SDL) cell;

releasing or rejecting the SCG, and/or releasing or rejecting the first cell.

13. A computer-readable storage medium, in which a computer program is stored which, when run on a communication apparatus, causes the communication apparatus to perform the method of any one of claims 1 to 8.