CN116489720A

CN116489720A - Switching configuration indication method, terminal and network equipment

Info

Publication number: CN116489720A
Application number: CN202210044500.XA
Authority: CN
Inventors: 宋二浩; 鲍炜; 宋振远
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2023-07-25
Also published as: WO2023134757A1

Abstract

The embodiment of the application discloses a switching configuration indication method, a terminal and network side equipment, which belong to the technical field of communication, and the switching configuration indication method comprises the following steps: the terminal receives N sets of switching parameter configurations, wherein the switching parameter configurations are used for indicating the configuration of at least one protocol layer after the terminal cell is switched, and N is a positive integer; the terminal receives a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations, and the switching command comprises a layer 1 switching command or a layer 2 switching command; and the terminal is configured according to the first switching parameter configuration.

Description

Switching configuration indication method, terminal and network equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a switching configuration indication method, a terminal and network side equipment.

Background

A New air interface (NR) access network splits a gNB into a Central Unit (CU) and a Distributed Unit (DU), where one gNB includes only one CU and one or more DUs, and one DU includes 1 or more cells (cells). The terminal can switch between different cells in the same DU, or can switch between different cells in different DU. Under different handover scenarios, the configuration of each protocol layer after the handover of the terminal cell may be different, so it is necessary to indicate the configuration adopted by the terminal after the handover, otherwise the handover procedure of the terminal will be affected.

Disclosure of Invention

The embodiment of the application provides a switching configuration indication method, a terminal and network side equipment, which can solve the problem that the configuration adopted by the terminal after switching is not provided in the related technology so as to influence the switching flow of a terminal cell.

In a first aspect, a handover configuration indication method is provided, including: the terminal receives N sets of switching parameter configurations, wherein the switching parameter configurations are used for indicating the configuration of at least one protocol layer after the terminal cell is switched, and N is a positive integer; the terminal receives a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations, and the switching command comprises a layer 1 switching command or a layer 2 switching command; and the terminal is configured according to the first switching parameter configuration.

In a second aspect, a handover configuration indication method is provided, including: the network side equipment sends N sets of switching parameter configurations, wherein the switching parameter configurations are used for indicating the configuration of at least one protocol layer after terminal cell switching, and N is a positive integer; the network side equipment sends a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations; the first switching parameter configuration is used for the terminal to configure; the handover command includes a layer 1 handover command or a layer 2 handover command.

In a third aspect, a handover configuration indicating apparatus is provided, including: the device comprises a receiving module, a switching module and a switching module, wherein the receiving module is used for receiving N sets of switching parameter configuration, the switching parameter configuration is used for indicating the configuration of at least one protocol layer after the cell of the device is switched, and N is a positive integer; the receiving module is further configured to receive a handover command, where the handover command is used to indicate a first handover parameter configuration in the N sets of handover parameter configurations, and the handover command includes a layer 1 handover command or a layer 2 handover command; and the configuration module is used for configuring according to the first switching parameter configuration.

In a fourth aspect, a handover configuration indicating apparatus is provided, including: the system comprises a transmitting module, a receiving module and a switching module, wherein the transmitting module is used for transmitting N sets of switching parameter configuration, the switching parameter configuration is used for indicating the configuration of at least one protocol layer after terminal cell switching, and N is a positive integer; the sending module is further configured to send a switching command, where the switching command is used to indicate a first switching parameter configuration in the N sets of switching parameter configurations; the first switching parameter configuration is used for the terminal to configure; the handover command includes a layer 1 handover command or a layer 2 handover command.

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

A sixth aspect provides a terminal, including a processor and a communication interface, where the processor is configured according to a first switching parameter configuration, and the communication interface is configured to receive N sets of switching parameter configurations, where the switching parameter configurations are used to indicate a configuration of at least one protocol layer after the terminal cell is switched, and N is a positive integer; and receiving a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations, and the switching command comprises a layer 1 switching command or a layer 2 switching command.

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect.

An eighth aspect provides a network side device, including a processor and a communication interface, where the communication interface is configured to send N sets of handover parameter configurations, where the handover parameter configurations are configured to instruct a configuration of at least one protocol layer after terminal cell handover, and N is a positive integer; transmitting a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations; the first switching parameter configuration is used for the terminal to configure; the handover command includes a layer 1 handover command or a layer 2 handover command.

In a ninth aspect, a handover configuration indication system is provided, including: a terminal operable to perform the steps of the method as described in the first aspect, and a network side device operable to perform the steps of the method as described in the second aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions, implementing the steps of the method as described in the first aspect, or implementing the steps of the method as described in the second aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the method as described in the first aspect or to implement the steps of the method as described in the second aspect.

In the embodiment of the application, the network side device can configure N sets of switching parameter configurations for the terminal in advance, and instruct the first switching parameter configuration used by the terminal through the switching command, so that the terminal can configure according to the first switching parameter configuration, the terminal can smoothly perform cell switching, different switching scenes are supported, and the communication performance is improved.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a handover configuration indication method according to an embodiment of the present application;

fig. 3 is a schematic flow chart of a handover configuration indication method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a switching configuration indicating device according to an embodiment of the present application;

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

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural view of a terminal according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a network-side device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The term "System" in the embodiments of the present application " And "network" are often used interchangeably, and the described techniques may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. The access network device may include a base station, a WLAN access point, a WiFi node, or the like, where the base station may be referred to as a node B, an evolved node B (eNB), 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 home node B, a home evolved node B, a transmission receiving point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is described by way of example, and the specific type of the base station is not limited.

The switching configuration indication method provided by the embodiment of the application is described in detail below by some embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in fig. 2, the embodiment of the present application provides a handover configuration indicating method 200, which may be performed by a terminal, in other words, by software or hardware installed in the terminal, and includes the following steps.

S202: the terminal receives N sets of switching parameter configurations, wherein the switching parameter configurations are used for indicating the configuration of at least one protocol layer after the terminal cell is switched, and N is a positive integer.

And in the N sets of switching parameter configurations, each set of switching parameter configuration is used for indicating the configuration of at least one protocol layer after the terminal cell is switched.

The above-mentioned N sets of handover parameter configurations are associated with one or more candidate cells, e.g. handover parameter configuration 1 is associated with candidate cell 1, handover parameter configuration 2 is associated with candidate cell 2, handover parameter configuration 3 is associated with candidate cell 3 and candidate cell 4, etc. For any one candidate cell, it may be associated with M sets of handover parameter configurations, where M is equal to or less than N, and M is a positive integer, and the M sets of handover parameter configurations are included in the N sets of handover parameter configurations. It should be noted that, the candidate cells generally refer to cells to which the terminal may be handed over, the number of candidate cells may be plural, and the cell to which the terminal is actually handed over may be referred to as a target cell.

Optionally, any one of the above N sets of handover parameter configurations may be used to indicate at least one of the following 1) to 7):

1) Whether Physical (PHY) is reconfigured. The PHY reconfiguration referred to in this embodiment may include at least one of a) and b) as follows: a) Physical uplink control channel (Physical Uplink Control Channel, PUCCH) resource configuration modification; b) Radio link management (Radio Link Management, RLM) measures resource configuration modifications.

2) Whether the medium access control (Media Access Control, MAC) is reconfigured. The MAC reconfiguration referred to in this embodiment may include at least one of a) and b) as follows: a) Release or addition of hybrid automatic repeat request HARQ entities; b) Logical channel priority configuration modification.

3) Whether radio link control (Radio Link Control, RLC) is re-established.

4) Whether the packet data convergence protocol (Packet Data Convergence Protocol, PDCP) is data recovery.

5) Whether PDCP is re-established.

6) The index of the switching parameter configuration may include an index value for each set of switching parameter configurations.

7) And the source cell and the candidate cell are associated with the switching parameter configuration, wherein each set of switching parameter configuration can be associated with a cell pair, and the cell pair comprises the source cell and the candidate cell, and the source cell is a service cell before switching of the terminal cell.

Alternatively, the terminal cell handover mentioned in the various embodiments of the present application may include one of the following 1) to 3):

1) Inter-cell handover of the same Distributed Unit (DU), i.e. handover of a terminal between different cells within the same DU under the same CU.

For example, the terminal is switched from cell 1 of DU1 to cell 2 of DU1, and the PDCP and RLC entities of the terminal are not affected since the physical location of each protocol layer entity of the access network side is not changed. As the cell serving the terminal changes, the MAC layer of the terminal needs to be reconfigured (re-configured), involving release or addition of HARQ entities, logical channel priority configuration modification (LCP configuration), etc. Meanwhile, the physical layer of the terminal needs to be reconfigured, and the physical layer of the terminal relates to PUCCH resource configuration modification, RLM measured resource configuration modification and the like.

2) Inter-cell handover of different DUs (Inter-DUs), i.e. the terminal is handed over between cells of different DUs under the same CU.

For example, when the terminal is switched from a cell of DU1 to a cell of DU2, the RLC layer of the terminal needs to be rebuilt, the MAC layer needs to be reset, the PHY layer needs to be reconfigured, the PDCP layer needs to perform Data Recovery (Data Recovery) under an Acknowledged Mode (AM) bearer, and the Data packet, which is not completed in transmission, is retransmitted in the PDCP layer due to the RLC of the access network side.

3) Inter-cell handover of different Central Units (CUs), i.e. terminal handover between different CUs, i.e. different gnbs.

For example, the terminal switches from the DU1 of CU1 to the DU2 of CU2, so the RLC layer needs to be rebuilt, the MAC layer needs to be reset, the PHY layer needs to be reconfigured, and the PDCP layer performs Data Recovery (Data Recovery) or PDCP rebuilding in the AM mode.

S204: and the terminal receives a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations.

The handover command includes a layer 1 handover command or a layer 2 handover command.

In this embodiment, the first handover parameter configuration may be any one of N sets of handover parameter configurations.

The handover command mentioned in the various embodiments of the present application may be layer 1 (L1) signaling or layer two (L2) signaling.

Optionally, the handover command may be carried by at least one of: downlink control information (Downlink Control Information, DCI); a medium access control unit (Media Access Control Control Element, MAC CE).

Optionally, the handover command includes at least one of: 1) An index of the first switching parameter configuration; 2) And the identification of the source cell and the candidate cell associated with the first handover parameter configuration.

The above-mentioned index of the first switching parameter configuration may be: an index in the N sets of handover parameter configurations, or an index in M sets of handover parameter configurations associated with the target cell indicated by the handover command; the M sets of switching parameter configurations are contained in the N sets of switching parameter configurations, M is a positive integer, and M is less than or equal to N.

In this embodiment, for the same set of the first switching parameter configuration, for example, the first switching parameter configuration, there are indexes corresponding to the N sets of the switching parameter configurations, and there are indexes corresponding to the M sets of the switching parameter configurations, and since M is less than or equal to N, the overhead for indicating the indexes in the switching command is smaller in the case that M is less than N, so that the signaling overhead is convenient to be saved.

S206: and the terminal is configured according to the first switching parameter configuration.

In this embodiment, after receiving the handover command, the terminal may perform configuration according to the first handover parameter configuration indicated by the handover command.

For example, in the context of inter-cell handover of an Intra-DU, the first handover parameter configuration indicates the following: MAC reconfiguration and physical layer reconfiguration, wherein the PDCP layer and the RLC layer of the terminal side are not affected, and the terminal can configure each protocol layer according to the first switching parameter configuration.

For another example, in the scenario of Inter-DU Inter-cell handover, the first handover parameter configuration indicates the following: the PDCP performs data recovery, RLC reconstruction, MAC reconfiguration and physical reconfiguration, and the terminal can configure each protocol layer according to the first switching parameter configuration.

For another example, in the scenario of Inter-CU Inter-cell handover, the first handover parameter configuration indicates the following: the PDCP rebuilding or data recovery, RLC rebuilding, MAC reconfiguration and physical reconfiguration, and the terminal can configure each protocol layer according to the first switching parameter configuration.

According to the switching configuration indication method provided by the embodiment of the application, the network side equipment can configure N sets of switching parameter configurations for the terminal in advance, and the first switching parameter configuration used by the terminal is indicated through the switching command, so that the terminal can be configured according to the first switching parameter configuration, the terminal can smoothly perform cell switching, different switching scenes can be supported, and the communication performance is improved.

The foregoing embodiment describes that the terminal is configured according to the first handover parameter configuration, in other embodiments, if the handover command indicates that there is a configuration of the first protocol layer after the handover of the terminal cell, and the first handover parameter configuration indicates that there is a configuration of the first protocol layer after the handover of the terminal cell, then there may be a step of S206 juxtaposing: and the terminal configures the first protocol layer according to the switching command. The first protocol layer may include at least one of: PDCP layer, RLC layer, MAC layer and PHY layer.

Optionally, the handover command mentioned in the embodiments of the present application may be used to indicate at least one of: 1) PDCP reestablishment; 2) Restoring PDCP data; 3) RLC re-establishment; 4) Resetting the MAC; 5) MAC reconfiguration; 6) PHY reconfiguration.

It will be appreciated that the handover commands mentioned in the various embodiments of the present application may also be used to indicate at least one of: 1) An index of the first switching parameter configuration; 2) And the identification of the source cell and the candidate cell associated with the first handover parameter configuration.

The MAC reconfiguration may include at least one of a) and b) as follows: a) Release or addition of HARQ entities; b) Logical channel priority configuration modification.

The PHY reconfiguration may include at least one of a) and b) as follows: a) Modification of PUCCH resource configuration; b) RLM measures resource configuration modifications.

In order to describe the handover configuration indication method provided in the embodiments of the present application in detail, three specific methods will be described below.

Method one

In this embodiment, the network side device configures N sets of switching parameter configurations for the terminal in advance, and then instructs, through a switching command, an index (index) of a first switching parameter configuration used by the terminal, and description will be given below of a behavior of the network side and a behavior of the terminal side.

Network side behavior comprising the steps of:

1. The CU configures N sets of switching parameter configurations, wherein the N sets of switching parameter configurations are associated with one or more candidate cells, and N is a positive integer. Each set of switching parameter configuration includes an index.

As an implementation, any one of the N sets of handover parameter configurations described above may be used to indicate at least one of the following 1) to 6): 1) PHY reconfiguration, 2) MAC reconfiguration, 3) RLC reconfiguration, 4) PDCP data recovery, 5) PDCP reconfiguration, 6) index of handover parameter configuration.

2. The CU sends N sets of switching parameter configurations to the source DU, and the source DU sends the N sets of switching parameter configurations to the UE.

3. The source DU sends an L1 or L2 handover command to the UE, the handover command indicating a first handover parameter configuration activated or applied by the UE. For example, the L1 or L2 handover command carries an index to be configured for the first handover parameter.

4) If the Inter-DU switching is finished, after the switching is finished: optionally, the CU re-transmits the configured N sets of handover parameter configurations to the target DU for subsequent handover.

If the Inter-CU is switched, after the switching is finished: optionally, the source CU sends the configured N sets of handover parameter configurations to the target CU, which forwards to the target DU for subsequent handover.

In this embodiment, after the UE switches to the target DU, the UE stores N sets of switching parameter configurations. However, the target DU does not have the N sets of handover parameter configurations yet, and the target DU does not know the association relationship between the N sets of handover parameter configurations and the specific target cell, and cannot indicate an index to the UE in the L1/L2 signaling to perform subsequent handover, so the CU may send the configured N sets of handover parameter configurations to the target DU.

In this embodiment, for a candidate cell, there may be associated M sets of handover parameter configurations, where M is a positive integer, and the index indicated by the handover command may be an index in N sets of handover parameter configurations, or may be an index in N sets of handover parameter configurations, where M is less than or equal to N.

Terminal side behavior comprising the steps of:

1. the UE receives N sets of switching parameter configurations, wherein the N sets of switching parameter configurations are associated with one or more candidate cells, and N is a positive integer. Each set of switching parameter configuration includes an index.

For a candidate cell, there may be associated M sets of handover parameter configurations, M being a positive integer.

2. The UE receives an L1 or L2 handover command indicating a first handover parameter configuration for UE activation or application. For example, the L1 or L2 handover command carries an index to be configured for the first handover parameter.

3. The UE modifies the layer configuration/configuration parameters according to the indication.

In this embodiment, for a candidate cell, M sets of handover parameter configurations may be associated, where M is a positive integer, and the index of the first handover parameter configuration indicated by the handover command may be an index of the first handover parameter configuration in N sets of handover parameter configurations, or an index of the first handover parameter configuration in M sets of handover parameter configurations, where M is equal to or less than N.

Method II

In this embodiment, the network side device configures N sets of switching parameter configurations for the terminal in advance, and then indicates, through a switching command, a first switching parameter configuration used by the terminal, and specifically may indicate the identifiers of the source cell and the candidate cell associated with the first switching parameter configuration, and description will be given below of the behaviour of the network side and the behaviour of the terminal side.

Network side behavior comprising the steps of:

1. the CU configures N sets of switching parameter configurations, each source cell and each candidate cell are associated with one set of switching parameter configuration, and N is a positive integer.

As an implementation, any one of the N sets of handover parameter configurations described above may be used to indicate at least one of the following 1) to 6): 1) whether PHY is reconfigured, 2) whether MAC is reconfigured, 3) whether RLC is rebuilt, 4) whether PDCP is data restored, 5) whether PDCP is rebuilt, 6) the identity of the associated source and candidate cells.

3. The source DU sends an L1 or L2 handover command to the UE, the handover command indicating a first handover parameter configuration activated or applied by the UE. For example, the L1/L2 switch command carries: identification of the source cell and candidate cell associated with the first handover parameter configuration.

Terminal side behavior comprising the steps of:

1. the UE receives N sets of switching parameter configurations, each source cell and each candidate cell are associated with one set of switching parameter configuration, and N is a positive integer.

2. The UE receives an L1 or L2 handover command indicating a first handover parameter configuration for UE activation or application. For example, the L1/L2 switch command carries: identification of the source cell and candidate cell associated with the first handover parameter configuration.

Method III

This embodiment may be used in combination with the first and second methods, where the L1 or L2 handover command may carry a configuration of a part of the protocol layer, and the configuration in the L1 or L2 handover command may cover (cover) the configuration of the first handover parameter configuration, and the network-side behaviour and the terminal-side behaviour will be described below.

Network side behavior comprising the steps of:

1. the same as in method one or method two.

2. The same as in method one or method two.

3. After the handover condition is satisfied, the source DU sends an L1 or L2 handover command to the UE, where the handover command indicates a first handover parameter configuration activated or applied by the UE. For example, the L1/L2 switch command carries at least one of the following: index of the first handover parameter configuration, identity of source cell and candidate cell associated with the first handover parameter configuration.

4) The same as in method one or method two.

Terminal side behavior comprising the steps of:

1. the same as in method one or method two.

2. The UE receives an L1 or L2 handover command indicating a configuration of at least one protocol layer of the UE, which may include one or more of: (1) PDCP re-establishment; (2) PDCP data recovery; (3) RLC re-establishment; (4) MAC reset; (5) MAC reconfiguration; (6) PHY reconfiguration.

The method of associating the handover command with the first handover parameter configuration may be at least one of: 1) The index association configured by the first switching parameter, that is, the switching command carries the index configured by the first switching parameter; 2) The identification of the source cell and the target cell is associated by the identification of the source cell and the target cell associated with the first handover parameter configuration, i.e. the handover command carries the identification of the source cell and the target cell.

3. The UE is configured using the configuration in the L1 or L2 handover command and the first handover parameter configuration.

If the handover command indicates that the configuration of the first protocol layer after the terminal cell is handed over, and the first handover parameter configuration indicates that the configuration of the first protocol layer after the terminal cell is handed over, the terminal configures the first protocol layer according to the handover command, and may ignore the configuration of the first protocol layer indicated by the first handover parameter configuration.

In order to describe the handover configuration indication method provided in the embodiments of the present application in detail, the following description will be made with reference to several specific embodiments.

Example 1

This embodiment includes the steps of:

step 1: the UE receives N sets of switching parameter configurations, wherein the N sets of switching parameter configurations are associated with one or more candidate cells, and N is a positive integer. Each set of switching parameter configuration includes an index.

For a candidate cell, there may be associated with M sets of handover parameter configurations, where M is a positive integer, and M is less than or equal to N.

Step 2: the UE receives an L1 or L2 switching command, wherein the L1 or L2 switching command carries an index to be configured by the first switching parameter.

Step 3: the UE applies the first handover parameter configuration, modifies the layer configurations or configures the layer parameters.

Example two

This embodiment includes the steps of:

step 1: the UE receives N sets of handover parameter configurations, each set of handover parameter configurations associated with one source cell and candidate cell combination (or cell pair).

Step 2: the UE receives an L1 or L2 switching command, wherein the switching command carries the identifications of a source cell and a target cell associated with the first switching parameter configuration.

Example III

This embodiment includes the steps of:

step 1: the UE receives N sets of switching parameter configurations, wherein the N sets of switching parameter configurations are associated with one or more candidate cells, and N is a positive integer. Each set of handover parameter configurations includes an index, and/or each source cell and candidate cell group is associated with a set of handover parameter configurations.

Step 2: the UE receives an L1 or L2 switching command, wherein the switching command carries the following contents:

1) An index of the first handover parameter configuration, and/or an identification of the source cell and the candidate cell associated with the first handover parameter configuration.

2) One or more of the following: (1) PDCP re-establishment; (2) PDCP data recovery; (3) RLC re-establishment; (4) MAC reset; (5) MAC reconfiguration; (6) PHY reconfiguration.

Step 3: the UE applies the configuration in the L1 or L2 handover command and the first handover parameter configuration, modifies the layer configurations or configures the layer parameters.

For example, if the handover command indicates that the configuration of the first protocol layer after the handover of the terminal cell is indicated, and the first handover parameter configuration indicates that the configuration of the first protocol layer after the handover of the terminal cell is indicated, the terminal configures the first protocol layer according to the handover command, and may ignore the configuration of the first protocol layer indicated by the first handover parameter configuration.

The method for associating the handover command with the first handover parameter configuration may be at least one of: index association configured by a first switching parameter; by means of an identification association of the source cell and the target cell associated with the first handover parameter configuration.

The handover configuration indication method according to the embodiment of the present application is described in detail above in connection with fig. 2. A handover configuration indication method according to another embodiment of the present application will be described in detail below with reference to fig. 3. It will be appreciated that the interaction of the network side device with the terminal described from the network side device is the same as or corresponds to the description of the terminal side in the method shown in fig. 2, and the relevant description is omitted as appropriate to avoid repetition.

Fig. 3 is a schematic flow chart of an implementation of a handover configuration indication method according to an embodiment of the present application, which may be applied to a network side device. As shown in fig. 3, the method 300 includes the following steps.

S302: the network side equipment sends N sets of switching parameter configurations, wherein the switching parameter configurations are used for indicating the configuration of at least one protocol layer after terminal cell switching, and N is a positive integer.

S304: the network side equipment sends a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations; the first switching parameter configuration is used for the terminal to configure.

Optionally, as an embodiment, the handover parameter is configured to indicate at least one of: 1) Whether PHY is reconfigured; 2) Whether the MAC is reconfigured; 3) Whether RLC is re-established; 4) Whether the PDCP recovers data or not; 5) Whether PDCP is rebuilt;

6) An index of the switching parameter configuration; 7) And the identification of the source cell and the candidate cell associated with the switching parameter configuration.

Optionally, as an embodiment, the handover command includes at least one of: 1) An index of the first switching parameter configuration; 2) And the identification of the source cell and the candidate cell associated with the first handover parameter configuration.

Optionally, as an embodiment, the index of the first switching parameter configuration is: an index in the N sets of handover parameter configurations, or an index in M sets of handover parameter configurations associated with the target cell indicated by the handover command; the M sets of switching parameter configurations are contained in the N sets of switching parameter configurations, M is a positive integer, and M is less than or equal to N.

Optionally, as an embodiment, the handover command indicates that there is a configuration of the first protocol layer after the terminal cell is handed over, and the first handover parameter configuration indicates that there is a configuration of the first protocol layer after the terminal cell is handed over, and the terminal is further configured to configure the first protocol layer according to the handover command.

Optionally, as an embodiment, the handover command is configured to indicate at least one of: 1) PDCP reestablishment; 2) Restoring PDCP data; 3) RLC re-establishment; 4) Resetting the MAC; 5) MAC reconfiguration; 6) PHY reconfiguration.

Optionally, as an embodiment, the MAC reconfiguration includes at least one of: 1) Release or addition of HARQ entities; 2) Logical channel priority configuration modification.

Optionally, as an embodiment, the PHY reconfiguration includes at least one of: 1) Modification of PUCCH resource configuration; 2) RLM measures resource configuration modifications.

Optionally, as an embodiment, the terminal cell handover includes one of: 1) Inter-cell handover of the same DU; 2) Inter-cell handover of different DUs; 3) Inter-cell handover for different CUs.

Optionally, as an embodiment, the handover command is carried by at least one of: 1) DCI; 2) MAC CE.

According to the switching configuration indicating method provided by the embodiment of the application, the execution main body can be the switching configuration indicating device. In the embodiment of the present application, a method for executing a handover configuration instruction by a handover configuration instruction apparatus is taken as an example, and the handover configuration instruction apparatus provided in the embodiment of the present application is described.

Fig. 4 is a schematic structural diagram of a handover configuration indicating apparatus according to an embodiment of the present application, which may correspond to a terminal in other embodiments. As shown in fig. 4, the apparatus 400 includes the following modules.

A receiving module 402, configured to receive N sets of handover parameter configurations, where the handover parameter configurations are used to indicate a configuration of at least one protocol layer after the device cell is handed over, and N is a positive integer.

The receiving module 402 is further configured to receive a handover command, where the handover command is used to indicate a first handover parameter configuration of the N sets of handover parameter configurations. The handover command includes a layer 1 handover command or a layer 2 handover command.

A configuration module 404, configured to configure according to the first switching parameter configuration.

According to the switching configuration indication method provided by the embodiment of the invention, the network side equipment can be pre-configured with N sets of switching parameter configurations, and the first switching parameter configuration used is indicated by the switching command, so that the device 400 can be configured according to the first switching parameter configuration, cell switching can be smoothly carried out, different switching scenes can be supported, and the communication performance is improved.

Optionally, as an embodiment, the configuration module 404 is further configured to: and if the switching command indicates that the configuration of the first protocol layer after the switching of the device cell is indicated, and the first switching parameter configuration indicates that the configuration of the first protocol layer after the switching of the device cell is indicated, configuring the first protocol layer according to the switching command.

Optionally, as an embodiment, the device cell handover includes one of: 1) Inter-cell handover of the same DU; 2) Inter-cell handover of different DUs; 3) Inter-cell handover for different CUs.

The apparatus 400 according to the embodiment of the present application may refer to the flow of the method 200 corresponding to the embodiment of the present application, and each unit/module in the apparatus 400 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 200, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

The switching configuration indicating device in the embodiment of the application may be an electronic device, for example, an electronic device with an operating system, or may be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

Fig. 5 is a schematic structural diagram of a handover configuration indicating apparatus according to an embodiment of the present application, where the apparatus may correspond to a network side device in other embodiments. As shown in fig. 5, the apparatus 500 includes the following modules.

The sending module 502 is configured to send N sets of handover parameter configurations, where the handover parameter configurations are configured to indicate a configuration of at least one protocol layer after cell handover of the terminal, and N is a positive integer.

The sending module 502 is further configured to send a handover command, where the handover command is used to indicate a first handover parameter configuration in the N sets of handover parameter configurations; the first switching parameter configuration is used for the terminal to configure. The handover command includes a layer 1 handover command or a layer 2 handover command.

According to the switching configuration indication method provided by the embodiment of the invention, N sets of switching parameter configurations can be configured for the terminal in advance, and the first switching parameter configuration used by the terminal is indicated through the switching command, so that the terminal can be configured according to the first switching parameter configuration, the terminal can smoothly perform cell switching, different switching scenes can be supported, and the communication performance is improved.

The apparatus 500 according to the embodiment of the present application may refer to the flow of the method 300 corresponding to the embodiment of the present application, and each unit/module in the apparatus 500 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 300, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

The switching configuration indicating device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 2 to 3, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Optionally, as shown in fig. 6, the embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602, where the memory 602 stores a program or instructions that can be executed on the processor 601, for example, when the communication device 600 is a terminal, the program or instructions implement the steps of the above-mentioned switch configuration indication method embodiment when executed by the processor 601, and achieve the same technical effects. When the communication device 600 is a network side device, the program or the instruction, when executed by the processor 601, implements the steps of the above-described embodiment of the handover configuration indication method, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for configuring according to a first switching parameter configuration, the communication interface is used for receiving N sets of switching parameter configurations, the switching parameter configurations are used for indicating the configuration of at least one protocol layer after the terminal cell is switched, and N is a positive integer; and receiving a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations, and the switching command comprises a layer 1 switching command or a layer 2 switching command. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 7 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 700 includes, but is not limited to: at least some of the components of the radio frequency unit 701, the network module 702, the audio output unit 703, the input unit 704, the sensor 705, the display unit 706, the user input unit 707, the interface unit 708, the memory 709, and the processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 710 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 704 may include a graphics processing unit (Graphics Processing Unit, GPU) 7041 and a microphone 7042, with the graphics processor 7041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from the network side device, the radio frequency unit 701 may transmit the downlink data to the processor 710 for processing; in addition, the radio frequency unit 701 may send uplink data to the network side device. Typically, the radio unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 709 may be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 709 may include volatile memory or nonvolatile memory, or the memory 709 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 709 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 710.

The radio frequency unit 701 may be configured to receive N sets of switching parameter configurations, where the switching parameter configurations are configured to indicate a configuration of at least one protocol layer after the terminal cell is switched, and N is a positive integer; and receiving a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations, and the switching command comprises a layer 1 switching command or a layer 2 switching command.

The processor 710 may be configured according to a first switching parameter configuration.

According to the terminal provided by the embodiment of the application, the network side equipment can configure N sets of switching parameter configurations for the terminal in advance, and the first switching parameter configuration used by the terminal is indicated through the switching command, so that the terminal can be configured according to the first switching parameter configuration, the terminal can smoothly perform cell switching, different switching scenes can be supported, and the communication performance is improved.

The terminal 700 provided in this embodiment of the present application may further implement each process of the foregoing embodiment of the handover configuration indication method, and may achieve the same technical effects, so that repetition is avoided and no further description is given here.

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is used for sending N sets of switching parameter configuration, the switching parameter configuration is used for indicating the configuration of at least one protocol layer after terminal cell switching, and N is a positive integer; transmitting a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations; the first switching parameter configuration is used for the terminal to configure. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 8, the network side device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84 and a memory 85. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information via the antenna 81, and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes information to be transmitted, and transmits the processed information to the radio frequency device 82, and the radio frequency device 82 processes the received information and transmits the processed information through the antenna 81.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 83, and the baseband apparatus 83 includes a baseband processor.

The baseband device 83 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, a baseband processor, is connected to the memory 85 through a bus interface, so as to call a program in the memory 85 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 86, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 800 of the embodiment of the present invention further includes: instructions or programs stored in the memory 85 and executable on the processor 84, the processor 84 invokes the instructions or programs in the memory 85 to perform the method performed by the modules shown in fig. 5, and achieve the same technical effects, and are not repeated here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the embodiment of the switch configuration indication method, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, implement each process of the above embodiment of the switching configuration indication method, and achieve the same technical effect, so that repetition is avoided, and no further description is given here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above embodiment of the handover configuration indication method, and the same technical effects are achieved, so that repetition is avoided, and details are not repeated herein.

The embodiment of the application also provides a switching configuration indicating system, which comprises: the terminal can be used for executing the steps of the switching configuration indication method, and the network side device can be used for executing the steps of the switching configuration indication method.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A handover configuration indication method, comprising:

the terminal receives N sets of switching parameter configurations, wherein the switching parameter configurations are used for indicating the configuration of at least one protocol layer after the terminal cell is switched, and N is a positive integer;

the terminal receives a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations, and the switching command comprises a layer 1 switching command or a layer 2 switching command;

and the terminal is configured according to the first switching parameter configuration.

2. The method of claim 1, wherein the handover parameter is configured to indicate at least one of:

whether the physical PHY is reconfigured;

whether the Media Access Control (MAC) is reconfigured;

Whether the radio link control RLC is re-established;

whether the packet data convergence protocol PDCP is data recovery;

whether PDCP is rebuilt;

an index of the switching parameter configuration;

and the identification of the source cell and the candidate cell associated with the switching parameter configuration.

3. The method of claim 1, wherein the handover command comprises at least one of:

an index of the first switching parameter configuration;

and the identification of the source cell and the candidate cell associated with the first handover parameter configuration.

4. A method according to claim 3, wherein the index of the first switching parameter configuration is: an index in the N sets of handover parameter configurations, or an index in M sets of handover parameter configurations associated with the target cell indicated by the handover command;

the M sets of switching parameter configurations are contained in the N sets of switching parameter configurations, M is a positive integer, and M is less than or equal to N.

5. The method according to any one of claims 1 to 4, further comprising:

and if the switching command indicates that the configuration of the first protocol layer after the terminal cell is switched and the first switching parameter configuration indicates that the configuration of the first protocol layer after the terminal cell is switched, the terminal configures the first protocol layer according to the switching command.

6. The method of claim 5, wherein the handover command is to indicate at least one of:

PDCP reestablishment;

restoring PDCP data;

RLC re-establishment;

resetting the MAC;

MAC reconfiguration;

PHY reconfiguration.

7. The method of claim 2 or 6, wherein the MAC reconfiguration comprises at least one of:

release or addition of hybrid automatic repeat request HARQ entities;

logical channel priority configuration modification.

8. The method according to claim 2 or 6, wherein the PHY reconfiguration comprises at least one of:

physical Uplink Control Channel (PUCCH) resource allocation modification;

radio link management, RLM, measures resource configuration modifications.

9. The method according to claim 1, wherein the terminal cell handover comprises one of:

inter-cell handover of the same distributed unit DU;

inter-cell handover of different DUs;

inter-cell handover of different central units CU.

10. The method of claim 1, wherein the handover command is carried by at least one of:

downlink control information DCI;

the medium access control unit MAC CE.

11. A handover configuration indication method, comprising:

The network side equipment sends N sets of switching parameter configurations, wherein the switching parameter configurations are used for indicating the configuration of at least one protocol layer after terminal cell switching, and N is a positive integer;

the network side equipment sends a switching command, wherein the switching command is used for indicating a first switching parameter configuration in the N sets of switching parameter configurations; the first switching parameter configuration is used for the terminal to configure; the handover command includes a layer 1 handover command or a layer 2 handover command.

12. The method of claim 11, wherein the handover parameter is configured to indicate at least one of:

whether PHY is reconfigured;

whether the MAC is reconfigured;

whether RLC is re-established;

whether the PDCP recovers data or not;

whether PDCP is rebuilt;

an index of the switching parameter configuration;

13. The method of claim 11, wherein the handover command comprises at least one of:

an index of the first switching parameter configuration;

14. The method of claim 13, wherein the index of the first switching parameter configuration is: an index in the N sets of handover parameter configurations, or an index in M sets of handover parameter configurations associated with the target cell indicated by the handover command;

15. The method according to any one of claims 11 to 14, wherein,

the switching command indicates that the configuration of the first protocol layer after the terminal cell is switched, the first switching parameter configuration indicates that the configuration of the first protocol layer after the terminal cell is switched, and the terminal is further configured to configure the first protocol layer according to the switching command.

16. The method of claim 15, wherein the handover command is used to indicate at least one of:

PDCP reestablishment;

restoring PDCP data;

RLC re-establishment;

resetting the MAC;

MAC reconfiguration;

PHY reconfiguration.

17. A handover configuration indicating apparatus, comprising:

the device comprises a receiving module, a switching module and a switching module, wherein the receiving module is used for receiving N sets of switching parameter configuration, the switching parameter configuration is used for indicating the configuration of at least one protocol layer after the cell of the device is switched, and N is a positive integer;

the receiving module is further configured to receive a handover command, where the handover command is used to indicate a first handover parameter configuration in the N sets of handover parameter configurations, and the handover command includes a layer 1 handover command or a layer 2 handover command;

And the configuration module is used for configuring according to the first switching parameter configuration.

18. The apparatus of claim 17, wherein the handover parameter is configured to indicate at least one of:

whether PHY is reconfigured;

whether the MAC is reconfigured;

whether RLC is re-established;

whether the PDCP recovers data or not;

whether PDCP is rebuilt;

an index of the switching parameter configuration;

19. The apparatus of claim 17, wherein the handover command comprises at least one of:

an index of the first switching parameter configuration;

20. The apparatus of claim 19, wherein the index of the first switching parameter configuration is: an index in the N sets of handover parameter configurations, or an index in M sets of handover parameter configurations associated with the target cell indicated by the handover command;

21. The apparatus of any one of claims 17 to 20, wherein the configuration module is further configured to:

And if the switching command indicates that the configuration of the first protocol layer after the switching of the device cell is indicated, and the first switching parameter configuration indicates that the configuration of the first protocol layer after the switching of the device cell is indicated, configuring the first protocol layer according to the switching command.

22. The apparatus of claim 21, wherein the handover command is to indicate at least one of:

PDCP reestablishment;

restoring PDCP data;

RLC re-establishment;

resetting the MAC;

MAC reconfiguration;

PHY reconfiguration.

23. A handover configuration indicating apparatus, comprising:

the system comprises a transmitting module, a receiving module and a switching module, wherein the transmitting module is used for transmitting N sets of switching parameter configuration, the switching parameter configuration is used for indicating the configuration of at least one protocol layer after terminal cell switching, and N is a positive integer;

the sending module is further configured to send a switching command, where the switching command is used to indicate a first switching parameter configuration in the N sets of switching parameter configurations; the first switching parameter configuration is used for the terminal to configure; the handover command includes a layer 1 handover command or a layer 2 handover command.

24. The apparatus of claim 23, wherein the handover parameter is configured to indicate at least one of:

Whether PHY is reconfigured;

whether the MAC is reconfigured;

whether RLC is re-established;

whether the PDCP recovers data or not;

whether PDCP is rebuilt;

an index of the switching parameter configuration;

25. The apparatus of claim 23, wherein the handover command comprises at least one of:

an index of the first switching parameter configuration;

26. The apparatus of claim 25, wherein the index of the first switching parameter configuration is: an index in the N sets of handover parameter configurations, or an index in M sets of handover parameter configurations associated with the target cell indicated by the handover command;

27. The device according to any one of claims 23 to 26, wherein,

28. The apparatus of claim 27, wherein the handover command is to indicate at least one of:

PDCP reestablishment;

restoring PDCP data;

RLC re-establishment;

resetting the MAC;

MAC reconfiguration;

PHY reconfiguration.

29. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the handover configuration indication method of any one of claims 1 to 10.

30. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the handover configuration indication method of any one of claims 11 to 16.

31. A readable storage medium, characterized in that a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the handover configuration indication method according to any one of claims 1 to 10, or implements the steps of the handover configuration indication method according to any one of claims 11 to 16.