CN116567737A

CN116567737A - Relay switching method and device, remote terminal, relay terminal and network side equipment

Info

Publication number: CN116567737A
Application number: CN202210102917.7A
Authority: CN
Inventors: 王文; 张艳霞; 郑倩
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2023-08-08
Also published as: WO2023143421A1

Abstract

The application discloses a relay switching method, a device, a remote terminal, a relay terminal and network side equipment, which belong to the field of communication, and the method of the embodiment of the application comprises the following steps: the method comprises the steps that a remote terminal obtains first information of a relay terminal, wherein the first information is used for indicating the connection state of the relay terminal; the remote terminal executes a first operation according to the first information; the first operation includes at least one of: determining a connection state of the relay terminal; selecting an alternative relay terminal, and sending second information to network side equipment, wherein the second information comprises the identification of the first alternative relay terminal selected by the remote terminal; transmitting third information to the network side equipment, wherein the third information comprises the identification of the second alternative relay terminal; the second alternative relay terminal includes: some or all of the relay terminals that transmit the first information.

Description

Relay switching method and device, remote terminal, relay terminal and network side equipment

Technical Field

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

Background

In the prior art, a relay switching scenario of the same base station is specified, and when a remote terminal executes a direct-cut indirect path, the remote terminal needs to provide at least one of the following information for the base station: an alternative relay User Equipment (UE) identity; selecting a serving cell of the relay UE; the alternative relay UE sidelink measures quality information. For the above-mentioned handover, since the handover is always the same base station, the base station can determine the connection state of the relay UE to be selected, and further determine which relay UE to select to determine the handover path.

However, in relay communication, a scenario of path switching may occur due to mobility of a remote UE, in which the remote UE switches an indirect path from a direct path, and the direct path and the indirect path are different base stations (cross-base-station path switching). For the scene of cross-base station path switching, the source base station and the target base station are not the same, and the connection state of the alternative relay UE cannot be judged under the condition that the source base station and the target base station are not interacted, so that the selection of the target path/target relay lacks a judging basis, the switching time delay is increased, and the service experience is reduced.

Disclosure of Invention

The embodiment of the application provides a relay switching method, a device, a remote terminal, a relay terminal and network side equipment, which can solve the problems of larger inter-base station path switching time delay and poor service experience in relay communication.

In a first aspect, a relay handover processing method is provided, including:

the method comprises the steps that a remote terminal obtains first information of a relay terminal, wherein the first information is used for indicating the connection state of the relay terminal; the relay terminal comprises one or more;

the remote terminal executes a first operation according to the first information; the first operation includes at least one of:

determining a connection state of the relay terminal;

selecting an alternative relay terminal, and sending second information to network side equipment, wherein the second information comprises the identification of the first alternative relay terminal selected by the remote terminal;

transmitting third information to the network side equipment, wherein the third information comprises the identification of the second alternative relay terminal; the second alternative relay terminal includes: some or all of the relay terminals that transmit the first information.

In a second aspect, a relay handover processing method is provided, including:

the network side equipment receives second information and/or third information sent by the remote terminal; the second information comprises the identification of a first alternative relay terminal selected by the remote terminal; the third information comprises the identification of the second alternative relay terminal;

And the network side equipment selects a target path of relay switching according to the second information and/or the third information, wherein the target path comprises a target relay terminal and/or target network side equipment.

In a third aspect, a relay handover processing method is provided, including:

the relay terminal sends first information of the relay terminal to a remote terminal, wherein the first information comprises a connection state used for indicating the relay terminal.

In a fourth aspect, there is provided a relay handover processing apparatus including:

the first acquisition module is used for acquiring first information of the relay terminal, wherein the first information is used for indicating the connection state of the relay terminal; the relay terminal comprises one or more;

the first execution module is used for executing a first operation according to the first information; the first operation includes at least one of:

determining a connection state of the relay terminal;

In a fifth aspect, there is provided a relay handover processing apparatus including:

the first receiving module is used for receiving the second information and/or the third information sent by the remote terminal; the second information comprises the identification of a first alternative relay terminal selected by the remote terminal; the third information comprises the identification of the second alternative relay terminal;

and the selection module is used for selecting a target path of relay switching according to the second information and/or the third information, wherein the target path comprises a target relay terminal and/or target network side equipment.

In a sixth aspect, there is provided a relay handover processing apparatus including:

and the second sending module is used for sending first information of the relay terminal to a remote terminal, wherein the first information comprises a connection state used for indicating the relay terminal.

In a seventh aspect, there is provided a remote 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 according to the first aspect.

An eighth aspect provides a remote terminal, including a processor and a communication interface, where the communication interface is configured to obtain first information of a relay terminal, where the first information is used to indicate a connection state of the relay terminal; the processor is used for executing a first operation according to the first information; the first operation includes at least one of:

Determining a connection state of the relay terminal;

In a ninth 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.

In a tenth aspect, a network side device is provided, including a processor and a communication interface, where the communication interface is configured to receive second information and/or third information sent by a remote terminal; the second information comprises the identification of a first alternative relay terminal selected by the remote terminal; the third information comprises the identification of the second alternative relay terminal; the processor is configured to select a target path of relay handover according to the second information and/or the third information, where the target path includes a target relay terminal and/or a target network side device.

In an eleventh aspect, there is provided a relay 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 according to the third aspect.

A twelfth aspect provides a relay terminal, including a processor and a communication interface, where the communication interface is configured to send first information of the relay terminal to a remote terminal, and the first information includes a connection state for indicating the relay terminal.

In a thirteenth aspect, there is provided a communication system comprising: a remote terminal, a relay terminal and a network side device, wherein the remote terminal is used for executing the steps of the relay handover processing method according to the first aspect, the network side device is used for executing the steps of the relay handover processing method according to the second aspect, and the relay terminal is used for executing the steps of the relay handover processing method according to the third aspect.

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

In a fifteenth 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 to implement the method as described in the first aspect, or to implement the method as described in the second aspect, or to implement the method as described in the third aspect.

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

In the embodiment of the application, before relay switching, a remote terminal acquires the connection state of a relay terminal and notifies the connection state of the relay terminal to network side equipment, and the network side equipment performs relay switching according to the connection state of the relay terminal; or the remote terminal executes selection of the alternative relay terminal according to the connection state after acquiring the connection state of the relay terminal, and reports the selection to the network side equipment; therefore, in the process of executing direct path switching indirect path crossing base stations in a far-end path, the switching efficiency and the user experience are effectively improved.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is one of the step flowcharts of the relay handover processing method provided in the embodiment of the present application;

fig. 3 is a second flowchart of a step of a relay handover processing method according to an embodiment of the present application;

fig. 4 is a third flowchart of a step of the relay handover processing method according to the embodiment of the present application;

FIG. 5 is an interaction diagram of example one provided by an embodiment of the present application;

FIG. 6 is an interaction schematic diagram of example two provided by an embodiment of the present application;

fig. 7 is one of schematic structural diagrams of a relay switching processing apparatus according to an embodiment of the present application;

fig. 8 is a second schematic structural diagram of a relay handover processing apparatus according to an embodiment of the present disclosure;

fig. 9 is a third schematic structural diagram of the relay handover processing apparatus according to the embodiment of the present application;

fig. 10 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of a terminal provided in an embodiment of the present application;

fig. 12 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 the 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 Mult) ip Access, OFDMA), single carrier frequency division multiple Access (SC-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described 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 far-end terminal 11, a relay terminal 12, and a network-side device 13. The remote terminal 11 and the relay terminal 12 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 palmtop, 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 (VUE), 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 furniture), a game machine, a personal Computer (personal Computer, a PC), a teller machine, or a self-service machine, and the like, the Wearable Device including: 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 types of the far-end terminal 11 and the relay terminal 12 are not limited in the embodiments of the present application. The network-side device 13 may comprise an access network device or a core network device, wherein the access network device 13 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 13 may include a base station, a WLAN access point, a WiFi node, or the like, which 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 and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, 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 as an example, and the specific type of the base station is not limited.

The relay handover processing method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

As shown in fig. 2, an embodiment of the present application provides a relay handover processing method, including:

step 201, a remote terminal obtains first information of a relay terminal, wherein the first information is used for indicating a connection state of the relay terminal, the relay terminal comprises one or more relay terminals, and the obtaining comprises receiving;

step 202, the remote terminal executes a first operation according to the first information; the first operation includes at least one of:

determining a connection state of the relay terminal;

Optionally, in the embodiment of the present application, the first information may indicate the connection state of the relay terminal by an explicit indication manner, or may indicate the connection state of the relay terminal by an implicit indication manner; specifically, the first information includes at least one of the following: the cell radio network temporary identifier C-RNTI of the relay terminal, the inactive state radio network temporary identifier I-RNTI of the relay terminal, the 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, and the connection state information of the relay terminal. The connection state information of the relay terminal is used for explicitly indicating the connection state of the relay terminal, and the C-RNTI of the relay terminal, the I-RNTI of the relay terminal and the 5G-STMSI of the relay terminal are used for implicitly indicating (or called indirect indication) the connection state of the relay terminal.

As an alternative embodiment, the connection state of the relay terminal includes one of the following:

a connection state, such as a connection management CM connection state, a radio resource control RRC connection state;

inactive state, such as CM-Connected with RRC inactive (CM connected and RRC inactive);

idle state (Idle).

As an alternative embodiment, the identification of the first alternative relay terminal and/or the identification of the second alternative relay terminal comprises at least one of:

5G globally unique temporary identifier 5G-GUTI;

5G temporary mobile subscription identity 5G-STMSI;

a cell radio network temporary identifier C-RNTI;

inactive state radio network temporary identity I-RNTI;

layer 2ID.

It should be noted that, in the embodiment of the present application, the identifier of the first alternative relay terminal may indicate the connection state of the first alternative relay terminal indirectly or implicitly; the identity of the second alternative relay terminal can indicate the identity of the second alternative relay terminal indirectly or implicitly.

In at least one embodiment of the present application, the third information further includes:

and the second alternative relay terminal is connected with the state information. The connection state information is used to explicitly indicate the connection state of the second alternative relay terminal.

In at least one embodiment of the present application, the first information further includes: and the relay terminal enters the willingness information of the connection state. For example, indicating whether the relay terminal has a willingness to enter a connected state by a specific bit in the first information; if the relay terminal is in an idle state or an inactive state currently, but is willing to enter a connection state, the corresponding bit in the first information is 1; or the relay terminal is in an idle state or a non-active state currently, but does not take into account the willingness of the connection state, the corresponding bit in the first information is 0.

As an alternative embodiment, the second information further includes: identification information of a serving cell of the first alternative relay terminal; for example, the identification information of the serving cell is an NR Cell Global Identifier (NCGI);

and/or, the third information further includes: the identification information of the serving cell of the second alternative relay terminal, such as the identification information of the serving cell, is an NR Cell Global Identifier (NCGI).

In at least one embodiment of the present application, the selecting, by the remote terminal, an alternative relay terminal according to the first information in step 202 includes:

the remote terminal selects an alternative relay terminal according to the first information and the first principle; wherein the first principle comprises:

taking the relay terminal in a connection state as a first alternative relay terminal with a first priority;

taking the relay terminal in the inactive state as a first alternative relay terminal with a second priority;

taking a relay terminal corresponding to the first information including the willingness information as a first alternative relay terminal according to the third priority;

and taking the relay terminal in the idle state as a first alternative relay terminal with the fourth priority.

Optionally, the first priority is higher than the second priority, the second priority is higher than the third priority, and the third priority is higher than the fourth priority; the corresponding first principle can also be understood as:

Preferentially taking the relay terminal in the connection state as a first alternative relay terminal;

suboptimal taking the relay terminal in the inactive state as a first alternative relay terminal;

taking the relay terminal corresponding to the first information including the willingness information as a first alternative relay terminal;

and finally, taking the relay terminal in the idle state as a first alternative relay terminal.

In at least one embodiment of the present application, prior to step 201, the method further comprises:

the remote terminal sends fourth information to the relay terminal, wherein the fourth information comprises at least one of the following:

the relay terminal is requested to send first request information of the connection state information;

the relay terminal is requested to send second request information of willingness information to enter a connection state;

third request information for requesting the relay terminal to enter a connection state;

accordingly, step 201 includes:

and the remote terminal acquires the first information sent by the relay terminal based on the fourth information.

In other words, in the embodiment of the present application, the manner in which the remote terminal obtains the first information includes:

the relay terminal directly transmits the first information to the remote terminal;

or,

the relay terminal resends the first information to the remote terminal based on the request of the remote terminal.

In summary, in the embodiment of the present application, before relay switching, a remote terminal acquires a connection state of a relay terminal and notifies the connection state to a network side device, and the network side device performs relay switching according to the connection state of the relay terminal; or the remote terminal executes selection of the alternative relay terminal according to the connection state after acquiring the connection state of the relay terminal, and reports the selection to the network side equipment; therefore, in the process of executing direct path switching indirect path crossing base stations in a far-end path, the switching efficiency and the user experience are effectively improved.

As shown in fig. 3, an embodiment of the present application provides a relay handover processing method, including:

step 301, the network side device receives second information and/or third information sent by the remote terminal; the second information comprises the identification of a first alternative relay terminal selected by the remote terminal; the third information comprises the identification of the second alternative relay terminal;

step 302, the network side device selects a target path of relay handover according to the second information and/or the third information, where the target path includes a target relay terminal and/or a target network side device.

5G globally unique temporary identifier 5G-GUTI;

5G temporary mobile subscription identity 5G-STMSI;

a cell radio network temporary identifier C-RNTI;

inactive state radio network temporary identity I-RNTI;

layer 2ID.

In at least one embodiment of the present application, the second information further includes: identification information of a serving cell of the first alternative relay terminal; for example, the identification information of the serving cell is an NR Cell Global Identifier (NCGI);

It should be noted that, in the embodiments of the present application, the network side device is a network side device to which a remote terminal is currently connected (including directly connected or connected through a relay terminal).

As an optional embodiment, in step 302, the network side device selects a target path of relay handover according to the second information, including:

and the network side equipment selects a target relay terminal and/or target network side equipment for the remote terminal from the first alternative relay terminal according to the identification of the first alternative relay terminal selected by the remote terminal.

As another optional embodiment, in step 302, the selecting, by the network side device, the target path of the relay handover according to the third information includes:

the network side equipment determines the connection state of the second alternative relay terminal according to the third information;

the network side equipment selects a target relay terminal and/or target network side equipment for the remote terminal according to the connection state of the second alternative relay terminal and a second principle; wherein the second principle comprises:

selecting a second relay terminal in a connection state as a target relay terminal and/or target network side equipment according to the fifth priority;

selecting a second relay terminal in an inactive state as a target relay terminal and/or target network side equipment according to a sixth priority;

and selecting the second relay terminal in the idle state as a target relay terminal and/or target network side equipment according to the seventh priority.

The fifth priority is higher than the sixth priority, which is higher than the seventh priority. Accordingly, the second principle can also be understood as:

the second relay terminal in a connection state is preferentially selected as a target relay terminal and/or target network side equipment;

the second relay terminal in the inactive state is selected as a target relay terminal and/or target network side equipment in a suboptimal mode;

and finally, selecting the second relay terminal in the idle state as a target relay terminal and/or target network side equipment.

As yet another optional embodiment, the selecting, by the network side device in step 302, the target path of the relay handover according to the second information and the third information includes:

the network side equipment selects a target relay terminal and/or target network side equipment for the remote terminal according to the identification of the first alternative relay terminal, the identification of the second alternative relay terminal, the connection state of the second alternative relay terminal and a third principle selected by the remote terminal; wherein the third rule comprises:

selecting the first alternative relay terminal as a target relay terminal and/or target network side equipment according to the eighth priority;

Selecting a second relay terminal in a connection state as a target relay terminal and/or target network side equipment according to the ninth priority;

selecting a second relay terminal in an inactive state as a target relay terminal and/or target network side equipment according to a tenth priority;

and selecting the second relay terminal in the idle state as a target relay terminal and/or target network side equipment according to the eleventh priority.

The eighth priority is higher than the ninth priority, the ninth priority is higher than the tenth priority, and the tenth priority is higher than the eleventh priority. Accordingly, the third principle can also be understood as:

preferentially selecting the first alternative relay terminal as a target relay terminal and/or target network side equipment;

the second relay terminal in a connection state is selected as a target relay terminal and/or target network side equipment in a sub-priority mode;

the second relay terminal in the inactive state is preferentially selected again as a target relay terminal and/or target network side equipment;

As shown in fig. 4, the embodiment of the present application further provides a relay handover processing method, including:

step 401, a relay terminal sends first information of the relay terminal to a remote terminal, where the first information includes a connection state for indicating the relay terminal.

idle state (Idle).

In at least one embodiment of the present application, prior to step 401, the method further comprises:

the relay terminal receives fourth information sent by the remote terminal, wherein the fourth information comprises at least one of the following items:

accordingly, step 401 includes:

And the relay terminal sends the first information to the remote terminal according to the fourth information.

or,

For example, in the case that the fourth information includes the first request information and/or the second request information, the first information carries connection state information of the relay terminal and/or willingness information of the relay terminal to enter a connection state.

As an alternative embodiment, in case the fourth information comprises the third request information, the method further comprises:

in the case that the relay terminal is in an idle state or an inactive state, the relay terminal performs a connection state entering process (including a service request process) according to the third request information;

the relay terminal sends the first information to the remote terminal according to the fourth information, and the method comprises the following steps:

after the relay terminal enters a connection state, the first information is sent to the remote terminal; the first information carries connection state information of the relay terminal and/or willingness information of the relay terminal to enter a connection state.

In order to more clearly describe the relay handover processing method provided in the embodiment of the present application, the following description is made with reference to two examples.

In an example one, a remote terminal obtains first information of a relay terminal, and the remote terminal or a source base station performs selection of an alternative relay terminal based on the first information, as shown in fig. 5:

step 51, the remote terminal receives a relay discovery message or a relay discovery additional message sent by the relay terminal, where the relay discovery message carries first information, and the first information includes at least one of the following: the cell radio network temporary identifier C-RNTI of the relay terminal, the inactive state radio network temporary identifier I-RNTI of the relay terminal, the 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, and the connection state information of the relay terminal; the relay discovers the extra information, including the willingness information of the relay terminal to enter the connection state, namely the relay terminal is in the idle state currently, but is willing to prepare to enter the connection state;

Step 52, the remote terminal sends second information and/or third information to the source base station, where the second information includes: and the identification of a first alternative relay terminal, wherein the first alternative relay terminal is selected for the remote terminal based on the first information.

The third information includes: the second alternative relay terminal identifier, and the optional third information further includes: and the second alternative relay terminal comprises the relay terminal corresponding to the first information.

Step 53, the source base station receives the second information and/or the third information, and selects a target switching path based on the second information and/or the third information, including a target relay terminal and/or a target base station, the selection;

when the third information includes the identifier of the second alternative relay terminal+the connection state information of the relay UE corresponding to the identifier:

preferentially selecting a relay terminal in a connection state;

less preferably selecting a relay terminal in an inactive state;

and finally selecting the idle relay terminal.

In example two, the remote terminal obtains the first information of the relay terminal, and the remote terminal or the source base station performs selection of the alternative relay terminal based on the first information, as shown in fig. 6:

step 61, the remote terminal sends a relay discovery message or a relay additional information acquisition message, the message optionally carrying fourth information, the fourth information optionally comprising at least one of:

and requesting the relay terminal to enter the third request information of the connection state.

Step 62, the relay terminal receives the relay discovery message sent by the remote terminal, and sends first information, where the first information includes at least one of the following: the cell radio network temporary identifier C-RNTI of the relay terminal, the inactive state radio network temporary identifier I-RNTI of the relay terminal, the 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, and the connection state information of the relay terminal; the relay discovers the extra information, including the willingness information of the relay terminal to enter the connection state, namely the relay terminal is in the idle state currently, but is willing to prepare to enter the connection state;

in one embodiment, the fourth information carries the first request information and/or the second request information, and the relay terminal directly sends the first information;

in another embodiment, the fourth information further carries third request information, and the relay terminal performs a connection state entering process, including a service request process, and sends the first information after entering the connection state;

Step 63, the remote terminal sends second information and/or third information to the source base station, where the second information includes: and the identification of a first alternative relay terminal, wherein the first alternative relay terminal is selected for the remote terminal based on the first information.

Step 64, the source base station receives the second information and/or the third information, and selects a target switching path based on the second information and/or the third information, including a target relay terminal and/or a target base station, the selection;

preferentially selecting a relay terminal in a connection state;

less preferably selecting a relay terminal in an inactive state;

and finally selecting the idle relay terminal.

In this embodiment of the present invention, the relay terminal sends its own connection state information (discovery stage) to the remote terminal, the remote terminal determines alternative relay information (for example, only the identifier of the first alternative relay terminal of the connection state or the identifier+connection state information of the second alternative relay terminal) sent to the network side device (source base station) based on the connection state of the relay terminal, and the network side device performs, based on the alternative relay terminal information provided by the remote terminal, selection of a target switching path, including selection of a target relay terminal and selection of a target network side device (preferably selecting a target path corresponding to the connection state relay terminal); the switching efficiency and the user experience can be effectively improved.

In the relay switching processing method provided in the embodiment of the present application, the execution body may be a relay switching processing device. In the embodiment of the present application, a relay switching processing device is described by taking a relay switching processing method performed by the relay switching processing device as an example.

As shown in fig. 7, the embodiment of the present application further provides a relay handover processing apparatus 700, including:

a first obtaining module 701, configured to obtain first information of a relay terminal, where the first information is used to indicate a connection state of the relay terminal; the relay terminal comprises one or more;

a first execution module 702, configured to execute a first operation according to the first information; the first operation includes at least one of:

determining a connection state of the relay terminal;

As an alternative embodiment, the third information further includes:

and the second alternative relay terminal is connected with the state information.

5G globally unique temporary identifier 5G-GUTI;

5G temporary mobile subscription identity 5G-STMSI;

a cell radio network temporary identifier C-RNTI;

inactive state radio network temporary identity I-RNTI;

layer 2ID.

As an alternative embodiment, the first information includes at least one of: the cell radio network temporary identifier C-RNTI of the relay terminal, the inactive state radio network temporary identifier I-RNTI of the relay terminal, the 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, and the connection state information of the relay terminal.

As an alternative embodiment, the first information further includes: and the relay terminal enters the willingness information of the connection state.

As an alternative embodiment, the second information further includes: identification information of a serving cell of the first alternative relay terminal;

and/or the number of the groups of groups,

the third information further includes: and the second alternative relay terminal selects the identification information of the service cell of the relay terminal.

As an alternative embodiment, the first execution module includes:

the first selecting submodule is used for selecting an alternative relay terminal according to the first information and the first principle; wherein the first principle comprises:

As an alternative embodiment, the apparatus further comprises:

the first sending module is used for sending fourth information to the relay terminal, and the fourth information comprises at least one of the following items:

the first acquisition module includes:

and the first acquisition sub-module is used for acquiring the first information sent by the relay terminal based on the fourth information.

It should be noted that, the relay switching processing apparatus provided in the embodiments of the present application is an apparatus capable of executing the relay switching processing method, and all embodiments of the relay switching processing method are applicable to the apparatus, and the same or similar beneficial effects can be achieved.

As shown in fig. 8, the embodiment of the present application further provides a relay handover processing apparatus 800, including:

a first receiving module 801, configured to receive second information and/or third information sent by a remote terminal; the second information comprises the identification of a first alternative relay terminal selected by the remote terminal; the third information comprises the identification of the second alternative relay terminal;

And a selecting module 802, configured to select a target path of relay handover according to the second information and/or the third information, where the target path includes a target relay terminal and/or a target network side device.

As an alternative embodiment, the third information further includes:

5G globally unique temporary identifier 5G-GUTI;

5G temporary mobile subscription identity 5G-STMSI;

a cell radio network temporary identifier C-RNTI;

inactive state radio network temporary identity I-RNTI;

layer 2ID.

and/or the number of the groups of groups,

As an alternative embodiment, the selecting module includes:

and the first selection sub-module is used for selecting a target relay terminal and/or target network side equipment for the remote terminal from the first alternative relay terminal according to the identification of the first alternative relay terminal selected by the remote terminal.

As an alternative embodiment, the selecting module includes:

a first determining submodule, configured to determine a connection state of the second alternative relay terminal according to the third information;

the second selecting sub-module is used for selecting a target relay terminal and/or target network side equipment for the remote terminal according to the connection state of the second alternative relay terminal and a second principle; wherein the second principle comprises:

As an alternative embodiment, the selecting module includes:

the second determining submodule is used for determining the connection state of the second alternative relay terminal according to the third information;

a third selecting sub-module, configured to select a target relay terminal and/or a target network side device for the remote terminal according to the identifier of the first alternative relay terminal selected by the remote terminal, the identifier of the second alternative relay terminal, the connection state of the second alternative relay terminal, and a third principle; wherein the third rule comprises:

As shown in fig. 9, the embodiment of the present application further provides a relay handover processing apparatus 900, including:

a second sending module 901, configured to send first information of the relay terminal to a remote terminal, where the first information includes a connection state for indicating the relay terminal.

As an alternative embodiment, the apparatus further comprises:

the second receiving module is configured to receive fourth information sent by the remote terminal, where the fourth information includes at least one of the following:

The second transmitting module includes:

and the second sending sub-module is used for sending the first information to the remote terminal according to the fourth information.

As an alternative embodiment, in case the fourth information comprises the third request information, the apparatus further comprises:

the second execution module is used for executing a connection state entering process according to the third request information under the condition that the relay terminal is in an idle state or a non-activated state;

the second transmitting module includes:

and the third sending sub-module is used for sending the first information to the remote terminal after entering a connection state.

The relay switching processing device in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an 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.

The relay switching processing device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 1 to fig. 6, and achieve the same technical effects, so that repetition is avoided, and no redundant description is provided herein.

Optionally, as shown in fig. 10, the embodiment of the present application further provides a communication device 1000, including a processor 1001 and a memory 1002, where the memory 1002 stores a program or an instruction that can be executed on the processor 1001, for example, when the communication device 1000 is a remote terminal, the program or the instruction implements the steps of the foregoing embodiment of the relay handover processing method when executed by the processor 1001, and the same technical effects can be achieved. When the communication device 1000 is a relay terminal, the program or the instruction, when executed by the processor 1001, implements the steps of the above embodiment of the relay switching processing method, and can achieve the same technical effects; when the communication device 1000 is a network side device, the program or the instruction, when executed by the processor 1001, implements the steps of the foregoing embodiment of the relay handover processing method, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal (the terminal is a relay terminal or a remote terminal), which comprises a processor and a communication interface, wherein the communication interface is used for acquiring first information of the relay terminal, and the first information is used for indicating the connection state of the relay terminal; the relay terminal comprises one or more; the processor is used for executing a first operation according to the first information; the first operation includes at least one of:

determining a connection state of the relay terminal;

transmitting third information to the network side equipment, wherein the third information comprises the identification of the second alternative relay terminal; the second alternative relay terminal includes: some or all relay terminals among the relay terminals transmitting the first information; or the communication interface is configured to send first information of the relay terminal to a remote terminal, where the first information includes a connection state for indicating the relay terminal. 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. 11 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1100 includes, but is not limited to: at least part of the components of the radio frequency unit 1101, the network module 1102, the audio output unit 1103, the input unit 1104, the sensor 1105, the display unit 1106, the user input unit 1107, the interface unit 1108, the memory 1109, and the processor 1110, etc.

Those skilled in the art will appreciate that the terminal 1100 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 1110 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. Drawing of the figure11The terminal structure shown in (c) does not constitute a limitation of the terminal, and the terminal may comprise more or less components than shown in the figures, or may combine certain components, or may be arranged in different components, which are not described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1104 may include a graphics processing unit (Graphics Processing Unit, GPU) 11041 and a microphone 11042, the graphics processor 11041 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 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1107 includes at least one of a touch panel 11071 and other input devices 11072. The touch panel 11071 is also referred to as a touch screen. The touch panel 11071 may include two parts, a touch detection device and a touch controller. Other input devices 11072 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 1101 may transmit the downlink data to the processor 1110 for processing; in addition, the radio frequency unit 1101 may send uplink data to the network side device. Typically, the radio frequency unit 1101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1109 may be used to store software programs or instructions and various data. The memory 1109 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory 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 1109 may include volatile memory or nonvolatile memory, or the memory 1109 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 1109 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 1110 may include one or more processing units; optionally, the processor 1110 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 1110.

The radio frequency unit 1101 is configured to obtain first information of a relay terminal, where the first information is used to indicate a connection state of the relay terminal; the relay terminal comprises one or more;

a processor 1110 for performing a first operation according to the first information; the first operation includes at least one of:

determining a connection state of the relay terminal;

transmitting third information to the network side equipment, wherein the third information comprises the identification of the second alternative relay terminal; the second alternative relay terminal includes: some or all of the relay terminals transmitting the first information

Or, the radio frequency unit 1101 is configured to send, to a remote terminal, first information of the relay terminal, where the first information includes a connection state for indicating the relay terminal.

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 receiving the second information and/or the third information sent by the far-end terminal; the second information comprises the identification of a first alternative relay terminal selected by the remote terminal; the third information comprises the identification of the second alternative relay terminal; the processor is configured to select a target path of relay handover according to the second information and/or the third information, where the target path includes a target relay terminal and/or a target network side device. 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. 12, the network side device 1200 includes: an antenna 121, a radio frequency device 122, a baseband device 123, a processor 124, and a memory 125. The antenna 121 is connected to a radio frequency device 122. In the uplink direction, the radio frequency device 122 receives information via the antenna 121, and transmits the received information to the baseband device 123 for processing. In the downlink direction, the baseband device 123 processes information to be transmitted, and transmits the processed information to the radio frequency device 122, and the radio frequency device 122 processes the received information and transmits the processed information through the antenna 121.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 123, where the baseband apparatus 123 includes a baseband processor.

The baseband apparatus 123 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 12, where one chip, for example, a baseband processor, is connected to the memory 125 through a bus interface, so as to invoke a program in the memory 125 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 126, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1200 of the embodiment of the present invention further includes: instructions or programs stored in the memory 125 and executable on the processor 124, the processor 124 invokes the instructions or programs in the memory 125 to perform the methods performed by the modules shown in fig. 8 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 processes of the embodiment of the relay handover processing method are implemented, 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, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is configured to run a program or an instruction, implement each process of the above embodiment of the relay switching processing method, and achieve the same technical effect, so as to avoid repetition, and not be repeated 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 foregoing relay handover processing method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated herein.

The embodiment of the application also provides a communication system, which comprises: the remote terminal can be used for executing the steps of the relay switching processing method, the network side device can be used for executing the steps of the relay switching processing method, and the relay terminal can be used for executing the steps of the relay switching processing 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 relay handover processing method, comprising:

the method comprises the steps that a remote terminal obtains first information of a relay terminal, wherein the first information is used for indicating the connection state of the relay terminal, and the relay terminal comprises one or more than one relay terminal;

determining a connection state of the relay terminal;

2. The method of claim 1, wherein the third information further comprises:

3. Method according to claim 1 or 2, characterized in that the identification of the first alternative relay terminal and/or the identification of the second alternative relay terminal comprises at least one of the following:

5G globally unique temporary identifier 5G-GUTI;

5G temporary mobile subscription identity 5G-STMSI;

a cell radio network temporary identifier C-RNTI;

inactive state radio network temporary identity I-RNTI;

layer 2ID.

4. A method according to any of claims 1-3, wherein the first information comprises at least one of: the cell radio network temporary identifier C-RNTI of the relay terminal, the inactive state radio network temporary identifier I-RNTI of the relay terminal, the 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, and the connection state information of the relay terminal.

5. The method of any of claims 1-4, wherein the first information further comprises: and the relay terminal enters the willingness information of the connection state.

6. The method of any of claims 1-5, wherein the second information further comprises: identification information of a serving cell of the first alternative relay terminal;

and/or the number of the groups of groups,

7. The method according to any of claims 1-6, wherein the remote terminal selecting an alternative relay terminal based on the first information, comprises:

8. The method according to any of claims 1-7, wherein before the remote terminal obtains the first information of the relay terminal, the method further comprises:

the remote terminal obtaining first information of the relay terminal includes:

9. A relay handover processing method, comprising:

10. The method of claim 9, wherein the third information further comprises:

11. Method according to claim 9 or 10, characterized in that the identification of the first alternative relay terminal and/or the identification of the second alternative relay terminal comprises at least one of the following:

5G globally unique temporary identifier 5G-GUTI;

5G temporary mobile subscription identity 5G-STMSI;

a cell radio network temporary identifier C-RNTI;

inactive state radio network temporary identity I-RNTI;

layer 2ID.

12. The method according to any one of claims 9-11, wherein the second information further comprises: identification information of a serving cell of the first alternative relay terminal;

And/or the number of the groups of groups,

13. The method according to any one of claims 9-12, wherein the network side device selecting a target path for relay handover according to the second information includes:

14. The method according to any one of claims 9-12, wherein the network side device selecting a target path for relay handover according to the third information includes:

15. The method according to any one of claims 9-12, wherein the network side device selects a target path for relay handover according to the second information and the third information, including:

16. A relay handover processing method, comprising:

17. The method of claim 16, wherein the first information comprises at least one of: the cell radio network temporary identifier C-RNTI of the relay terminal, the inactive state radio network temporary identifier I-RNTI of the relay terminal, the 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, and the connection state information of the relay terminal.

18. The method of claim 16 or 17, wherein the first information further comprises: and the relay terminal enters the willingness information of the connection state.

19. The method according to any one of claims 16-18, further comprising:

the relay terminal sending first information of the relay terminal to a remote terminal, including:

20. The method of claim 19, wherein, in the case where the fourth information includes the third request information, the method further comprises:

executing a connection entering process by the relay terminal according to the third request information under the condition that the relay terminal is in an idle state or a non-activated state;

and after the relay terminal enters a connection state, the first information is sent to the remote terminal.

21. A relay switching processing apparatus, comprising:

determining a connection state of the relay terminal;

selecting an alternative relay terminal, and sending second information to the network side equipment, wherein the second information comprises the identification of the first alternative relay terminal selected by the remote terminal;

22. The apparatus of claim 21, wherein the third information further comprises:

23. The apparatus of claim 21 or 22, wherein the identity of the first alternative relay terminal and/or the identity of the second alternative relay terminal comprises at least one of:

5G globally unique temporary identifier 5G-GUTI;

5G temporary mobile subscription identity 5G-STMSI;

a cell radio network temporary identifier C-RNTI;

inactive state radio network temporary identity I-RNTI;

layer 2ID.

24. The apparatus of any of claims 21-23, wherein the first information comprises at least one of: the cell radio network temporary identifier C-RNTI of the relay terminal, the inactive state radio network temporary identifier I-RNTI of the relay terminal, the 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, and the connection state information of the relay terminal.

25. The apparatus of any one of claims 21-24, wherein the first information further comprises: and the relay terminal enters the willingness information of the connection state.

26. The apparatus of any of claims 21-25, wherein the second information further comprises: identification information of a serving cell of the first alternative relay terminal;

and/or the number of the groups of groups,

27. The apparatus of any one of claims 21-26, wherein the first execution module comprises:

28. The apparatus according to any one of claims 21-27, wherein the apparatus further comprises:

the first acquisition module includes:

29. A remote 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 relay handover processing method according to any one of claims 1 to 8.

30. A relay switching processing apparatus, comprising:

31. The apparatus of claim 30, wherein the third information further comprises:

32. The apparatus of claim 30 or 31, wherein the identity of the first alternative relay terminal and/or the identity of the second alternative relay terminal comprises at least one of:

5G globally unique temporary identifier 5G-GUTI;

5G temporary mobile subscription identity 5G-STMSI;

a cell radio network temporary identifier C-RNTI;

inactive state radio network temporary identity I-RNTI;

layer 2ID.

33. The apparatus of any one of claims 30-32, wherein the second information further comprises: identification information of a serving cell of the first alternative relay terminal;

and/or the number of the groups of groups,

34. The apparatus of any one of claims 30-33, wherein the selection module comprises:

35. The apparatus of any one of claims 30-33, wherein the selection module comprises:

36. The apparatus of any one of claims 30-33, wherein the selection module comprises:

37. 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 relay handover processing method according to any one of claims 9 to 15.

38. A relay switching processing apparatus, comprising:

39. The apparatus of claim 38, wherein the first information comprises at least one of: the cell radio network temporary identifier C-RNTI of the relay terminal, the inactive state radio network temporary identifier I-RNTI of the relay terminal, the 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, and the connection state information of the relay terminal.

40. The apparatus of claim 38 or 39, wherein the first information further comprises: and the relay terminal enters the willingness information of the connection state.

41. The apparatus of any one of claims 38-40, further comprising:

the second transmitting module includes:

42. The apparatus of claim 41, wherein, in the case where the fourth information includes the third request information, the apparatus further comprises:

the second transmitting module includes:

43. A relay 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 relay handover processing method of any of claims 16 to 20.

44. A readable storage medium, wherein a program or an instruction is stored on the readable storage medium, which when executed by a processor, implements the steps of the relay handover processing method according to any one of claims 1 to 8, or implements the steps of the relay handover processing method according to any one of claims 9 to 15, or implements the steps of the relay handover processing method according to any one of claims 16 to 20.