CN117835263A

CN117835263A - Identification configuration method and communication device

Info

Publication number: CN117835263A
Application number: CN202211180444.9A
Authority: CN
Inventors: 张柔佳; 孙飞; 朱元萍; 史玉龙
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2024-04-05
Also published as: WO2024066968A1

Abstract

The application provides an identification configuration method and a communication device, which can be applied to a scene that relay equipment has mobility, and can also be applied to a scene that the relay equipment is in a fixed geographic position. The method may include: the relay device sends a first message to a first host node, wherein the first message comprises first cell identification information, and the first cell identification information is identification information of a first cell of the relay device; the relay device receives a second message from the first host node, wherein the second message comprises the first cell identification information and a second cell global identification (cell global identifier, CGI), so that the relay device can dynamically acquire the CGI, and further stability of communication is improved. The first cell identification information and the second CGI have a corresponding relation, and the second CGI is the CGI of the second cell of the relay equipment.

Description

Identification configuration method and communication device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method for configuring an identifier and a communications device.

Background

The access backhaul integration (integrated access and backhaul, IAB) can not only meet the requirement of densely deploying base stations, but also meet the requirement of flexibly deploying optical fibers and save the deployment cost of the optical fibers. The IAB is a relay scheme, and a relay device may be called a relay node or an IAB node (IAB node) or the like, a child node of the relay device may be another relay device or a User Equipment (UE), and a home device of the relay device may be called a home node or an IAB home (IAB donor) or a home base station (DgNB) or the like.

Currently, the geographical location of the relay device is fixed, and thus the global cell identity (cell global identifier, CGI) of the relay device's subordinate cell is preconfigured. The base station identity in the CGI is used to identify the base station to which the cell belongs. That is, to which home node the relay device is connected, is preconfigured. However, with the development of IAB technology, the geographic location of the relay device may no longer be limited to being fixed. In other words, the relay device may be mobile, for example, a relay device mounted on a vehicle moves with the movement of the vehicle.

For mobile relay devices, how to dynamically acquire CGI is a technical problem to be solved.

Disclosure of Invention

The embodiment of the application provides an identification configuration method and a communication device, which can realize that relay equipment dynamically acquires CGI, thereby being beneficial to improving the stability of communication.

In a first aspect, embodiments of the present application provide an identification configuration method, which may be performed by a relay device, or by a module in the relay device, for example, by a processor, a chip, or a chip system, or the like. The method may include: transmitting a first message to a first host node, wherein the first message comprises first cell identification information, and the first cell identification information is identification information of a first cell of relay equipment; receiving a second message from the first host node, the second message including first cell identification information and a second CGI; the first cell identification information and the second CGI have a corresponding relation, and the second CGI is the CGI of the second cell of the relay equipment.

Therefore, the relay device obtains the second CGI from the first host node through the first cell identification information, so that the relay device dynamically obtains the CGI, and further stability of communication is improved. Optionally, the connection between the relay device and the home node is switched from the second home node to the first home node, and the first home node configures the CGI for the second cell of the relay device, so as to dynamically configure the CGI for the relay device by the home node after the switching.

The first cell is any one cell among a plurality of cells of the relay device. The first cell and the second cell may be the same cell of the relay device when the relay device connects different home nodes. For example, the carrier information of the first cell and the second cell being the same may indicate that the first cell and the second cell are the same cell, but the cell identities of the first cell and the second cell may be the same or different. For example, when the first cell is the relay device connected to the second home node, cell 1 of the relay device; when the second cell is the cell 2 of the relay device and the relay device is connected with the first host node, the carrier information of the cell 1 and the carrier information of the cell 2 are the same.

Further, the relay device replaces the first CGI with the second CGI according to the correspondence between the first cell identification information and the second CGI when receiving the second message, where the first CGI is the CGI of the first cell. The correspondence between the first cell identification information and the second CGI may be that there is a correspondence between the first CGI and the second CGI, so that the relay device may replace the first CGI with the second CGI, so as to ensure that the CGI has global uniqueness, thereby helping to promote stability of service communication between the relay device and UE connected with the relay device.

Optionally, the node identifier corresponding to the second CGI is different from the node identifier corresponding to the first CGI, that is, the host node corresponding to the second CGI is different from the host node corresponding to the first CGI, and the node identifier is used for identifying the host node.

Further, the node identifier corresponding to the second CGI is used for identifying the first host node, the node identifier corresponding to the first CGI is used for identifying the second host node, and the connection between the relay device and the host node is switched from the second host node to the first host node. That is, the node identifier corresponding to the second CGI is used to identify the host node after the handover, and the node identifier corresponding to the first CGI is used to identify the host node before the handover, so as to ensure that the node identifier corresponding to the second CGI is consistent with the node identifier of the first host node.

In one possible implementation manner, the first message further includes a node identifier corresponding to the first CGI, or length information of the node identifier corresponding to the first CGI. The length information of the node identifier corresponding to the first CGI is used to determine the node identifier corresponding to the first CGI, for example, according to the length information of the node identifier corresponding to the first CGI and the cell identifier (for example, new air interface cell identifier (new radio cell identity, NCI)) of the first cell, the node identifier corresponding to the first CGI may be determined. The first host node may determine whether the node identifier of the first host node is the same as the node identifier corresponding to the first CGI, where if the node identifier is different, the second CGI may be configured for the second cell, and if the node identifier is the same, it indicates that the first cell may work normally under control of the first host node.

Optionally, the relay device acquires the length information of the node identifier corresponding to the first CGI from the broadcast message of the second host node, so as to carry the length information of the node identifier corresponding to the first CGI in the first message.

Optionally, the relay device acquires length information of the node identifier corresponding to the first CGI from the broadcast message of the second host node, and determines the node identifier corresponding to the first CGI according to the length information of the node identifier corresponding to the first CGI, so as to carry the node identifier corresponding to the first CGI in the first message.

Optionally, the relay device obtains the node identifier corresponding to the first CGI, or the length information of the node identifier corresponding to the first CGI, from the operation administration maintenance (operation administration and maintenance, OAM) device, so as to carry the node identifier corresponding to the first CGI, or the length information of the node identifier corresponding to the first CGI, in the first message. If the node identifier corresponding to the first CGI is obtained, the node identifier corresponding to the first CGI is carried in the first message. If the length information of the node identifier corresponding to the first CGI is obtained, the length information of the node identifier corresponding to the first CGI is carried in the first message.

In another possible implementation manner, the first message further includes indication information, where the indication information is used to indicate that the second CGI is configured.

Alternatively, the relay device comprises a mobile terminal, and the method provided in the first aspect may be performed by the mobile terminal of the relay device.

In a second aspect, embodiments of the present application provide an identification configuration method that may be performed by a first host node, or by a module in the first host node, for example by a processor, chip, or system-on-chip, or the like. The method may include: the first host node receives a first message from the relay device, wherein the first message comprises first cell identification information, and the first cell identification information is identification information of a first cell of the relay device; transmitting a second message to the relay device, the second message including the first cell identification information and a second CGI; the first cell identification information and the second CGI have a corresponding relation, and the second CGI is the CGI of the second cell of the relay equipment.

It can be seen that, when the first host node receives the information carrying the first cell identifier, the first cell identifier and the second CGI are fed back to the relay device, so that the first host node configures the CGI for the relay device, and further stability of communication is improved. Optionally, the connection between the relay device and the home node is switched from the second home node to the first home node, and the first home node configures the CGI for the second cell of the relay device, so as to dynamically configure the CGI for the relay device by the home node after the switching.

Optionally, before the first host node sends the second message to the relay device, the first host node configures the second CGI to implement the first host node configuring the CGI for the relay device.

In one possible implementation manner, the first message further includes a node identifier corresponding to the first CGI, or length information of the node identifier corresponding to the first CGI. The length information of the node identifier corresponding to the first CGI is used to determine the node identifier corresponding to the first CGI, for example, according to the length information of the node identifier corresponding to the first CGI and the cell identifier (for example, NCI) of the first cell, the node identifier corresponding to the first CGI may be determined. The first host node may determine whether the node identifier of the first host node is the same as the node identifier corresponding to the first CGI, where if the node identifier is different, the second CGI may be configured for the second cell, and if the node identifier is the same, it indicates that the first cell may work normally under control of the first host node.

In another possible implementation manner, the first message further includes indication information, where the indication information is used to indicate that the second CGI is configured. The first host node may configure the second CGI upon receiving the indication information.

In a third aspect, embodiments of the present application provide an identification configuration method, which may be performed by a relay device, or by a module in the relay device, for example, by a processor, a chip, or a chip system, or the like. The method may include: the relay device sends a third message to the second host node, wherein the third message comprises first cell identification information, and the first cell identification information is identification information of a first cell of the relay device; receiving a fourth message from the second host node, the fourth message including the first cell identification information and the second CGI; the first cell identification information and the second CGI have a corresponding relation; the second CGI is a CGI of a second cell of the relay device.

Therefore, the relay device obtains the second CGI from the second host node through the first cell identification information, so that the relay device dynamically obtains the CGI, and further stability of communication is improved. Optionally, the connection between the relay device and the home node is switched from a second home node to the first home node, and the second home node configures a CGI for a second cell of the relay device, so as to dynamically configure the CGI for the relay device by the home node before the switching.

Further, the relay device replaces the first CGI with the second CGI according to the correspondence between the first cell identification information and the second CGI when receiving the fourth message, where the first CGI is the CGI of the first cell. The correspondence between the first cell identification information and the second CGI may be that there is a correspondence between the first CGI and the second CGI, so that the relay device may replace the first CGI with the second CGI, so as to ensure that the CGI has global uniqueness, thereby helping to promote stability of service communication between the relay device and UE connected with the relay device.

In one possible implementation, a relay device includes a mobile terminal and a distributed unit;

the relay device sends a third message to the second host node, which may be that the mobile terminal of the relay device sends the third message to the second host node; the relay device receives the fourth message from the second home node, which may be that the mobile terminal of the relay device receives the fourth message from the second home node and sends the fourth message to the distributed unit of the relay device, so that the distributed unit of the relay device obtains the correspondence between the first cell identification information and the second CGI.

In one possible implementation, the third message further includes indication information, where the indication information is used to indicate that the second CGI is configured.

In a fourth aspect, embodiments of the present application provide an identification configuration method that may be performed by a second host node, or by a module in the second host node, for example by a processor, chip, or system-on-chip, or the like. The method may include: the second host node receives a third message from the relay device, wherein the third message comprises first cell identification information, and the first cell identification information is identification information of a first cell of the relay device; transmitting a fourth message to the relay device, the fourth message including the first cell identification information and the second CGI; the first cell identification information and the second CGI have a corresponding relation; the second CGI is a CGI of a second cell of the relay device.

It can be seen that, when the second host node receives the information carrying the first cell identifier, the second host node feeds back the first cell identifier and the second CGI to the relay device, so as to implement that the second host node configures the CGI for the relay device, thereby being further beneficial to improving the stability of communication. Optionally, the connection between the relay device and the home node is switched from a second home node to the first home node, and the second home node configures a CGI for a second cell of the relay device, so as to dynamically configure the CGI for the relay device by the home node before the switching.

In one possible implementation, the third message further includes indication information, where the indication information is used to indicate that the second CGI is configured. The second host node may configure the second CGI according to the indication information. Alternatively, the second host node may send the indication information to the first host node, which configures the second CGI.

In one possible implementation manner, the second host node sends a fifth message to the first host node when receiving the third message, wherein the content included in the fifth message is the same as the content included in the third message; a sixth message is received from the first host node, the sixth message including the same content as the fourth message. And the second host node feeds back the fourth message to the relay device.

In another possible implementation manner, the second host node obtains, from the first host node, the CGI used by the first host node and the node identifier of the first host node when receiving the third message, and configures the second CGI for the relay device. Wherein the CGI used by the first host node is different from the second CGI; the node identification of the first host node is used to configure the second CGI.

In a fifth aspect, embodiments of the present application provide an identification configuration method that may be performed by a first host node, or by a module in the first host node, for example by a processor, chip, or system-on-chip, or the like. The method may include: the first host node receives a fifth message from the second host node, wherein the fifth message comprises first cell identification information, and the first cell identification information is identification information of a first cell of the relay equipment; the connection between the relay device and the host node is switched from the second host node to the first host node; transmitting a sixth message to the second host node, the sixth message including the first cell identification information and the second CGI; the first cell identification information and the second CGI have a corresponding relation; the second CGI is a CGI of a second cell of the relay device.

As can be seen, the second host node requests the first host node to configure the second CGI for the second cell of the relay device, so as to implement that the second host node configures the CGI for the relay device, thereby being beneficial to improving the stability of communication.

In one possible implementation, the fifth message further includes indication information; the first host node configures a second CGI according to the indication information.

In a sixth aspect, embodiments of the present application provide an identification configuration method, which may be performed by a relay device, or by a module in the relay device, for example, by a processor, a chip, or a chip system, or the like. The method may include: the relay device sends a first message to a first host node, wherein the first message comprises configuration information of X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; a second message is received from the first host node, the second message including CGIs of X cells, one cell corresponding to each CGI.

Therefore, the relay device obtains the CGI of the X cells from the first host node through the configuration information of the X cells, so that the relay device can dynamically obtain a plurality of CGI, and the stability of communication can be improved. Optionally, the connection between the relay device and the host node is switched from the second host node to the first host node, and the first host node configures CGI for a plurality of cells of the relay device, so that the switched host node dynamically configures CGI for the relay device.

In one possible implementation, the first message further includes indication information for indicating CGI configuring the X cells.

In one possible implementation, the X cells are cells of a first distributed unit of the relay device, where the cells of the first distributed unit include one or more cells of the relay device. The first distributed unit may be understood as a distributed unit of the relay device under the control of the first home node, that is, a distributed unit of the relay device controlled by the switched home node.

In one possible implementation manner, the configuration information of the X cells includes configuration information of Y cells, where Y is an integer greater than or equal to 1. The Y cells are cells of a second distributed unit of the relay device, the cells of the second distributed unit comprising one or more cells of the relay device. The second distributed unit may be understood as a distributed unit of the relay device under the control of the second home node, i.e. a distributed unit of the relay device controlled by the home node before handover. Further, for the CGI of Y cells included in the CGI of X cells, the second message further includes identification information of the Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In a seventh aspect, embodiments of the present application provide an identification configuration method that may be performed by a first host node, or by a module in the first host node, for example by a processor, chip, or system-on-chip, or the like. The method may include: the first host node receives a first message from the relay device, wherein the first message comprises configuration information of X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; and sending a second message to the relay device, wherein the second message comprises CGIs of X cells, and one cell corresponds to one CGI.

It can be seen that, when the first host node receives the configuration information and the indication information carrying the X cells, the CGIs of the X cells are fed back to the relay device, so that the relay device dynamically obtains the multiple CGIs, and further stability of communication is improved. Optionally, the connection between the relay device and the host node is switched from the second host node to the first host node, and the first host node configures CGI for a plurality of cells of the relay device, so that the switched host node dynamically configures CGI for the relay device.

In an eighth aspect, embodiments of the present application provide an identification configuration method, which may be performed by a relay device, or by a module in the relay device, for example, by a processor, a chip, or a chip system, or the like. The method may include: the relay device sends a third message to the second host node, wherein the third message comprises configuration information of X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; a fourth message is received from the second host node, the fourth message comprising CGIs of X cells, one cell corresponding to each CGI.

Therefore, the relay device obtains the CGI of the X cells from the second host node through the configuration information of the X cells, so that the relay device can dynamically obtain a plurality of CGI, and the stability of communication can be improved. Optionally, the connection between the relay device and the home node is switched from a second home node to the first home node, and the second home node configures a plurality of CGIs for a second cell of the relay device, so that the home node before switching dynamically configures a plurality of CGIs for the relay device.

The relay device sends a third message to the second host node, which may be that the mobile terminal of the relay device sends the third message to the second host node; the relay device receives the fourth message from the second home node, which may be that the mobile terminal of the relay device receives the fourth message from the second home node and sends the fourth message to the distributed unit of the relay device, so that the distributed unit of the relay device obtains CGIs of the X cells.

In one possible implementation, the third message further includes indication information, where the indication information is used to indicate CGI configuring the X cells.

In one possible implementation manner, the configuration information of the X cells includes configuration information of Y cells, where Y is an integer greater than or equal to 1. The Y cells are cells of a second distributed unit of the relay device, the cells of the second distributed unit comprising one or more cells of the relay device. The second distributed unit may be understood as a distributed unit of the relay device under the control of the second home node, i.e. a distributed unit of the relay device controlled by the home node before handover. Further, for the CGI of the Y cells included in the CGI of the X cells, the fourth message further includes identification information of the Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In a ninth aspect, embodiments of the present application provide an identification configuration method, which may be performed by the second host node, or by a module in the second host node, for example, by a processor, a chip, or a system-on-chip, etc. The method may include: the second host node receives a third message from the relay device, wherein the third message comprises configuration information of X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; and sending a fourth message to the relay device, wherein the fourth message comprises CGIs of X cells, and one cell corresponds to one CGI.

Therefore, under the condition that the second host node receives the configuration information carrying the X cells, the CGI of the X cells is fed back to the relay device, so that the second host node configures a plurality of CGIs for the relay device, and further stability of communication is improved. Optionally, the connection between the relay device and the home node is switched from a second home node to the first home node, and the second home node configures CGIs for a plurality of cells of the relay device, so that the home node before switching dynamically configures a plurality of CGIs for the relay device.

In one possible implementation, the X cells are cells of a first distributed unit of the relay device, where the cells of the first distributed unit include one or more cells of the relay device.

In one possible implementation, the third message further includes indication information, where the indication information is used to indicate CGI configuring the X cells. The second host node may configure CGIs of the X cells according to the indication information. Or the second host node sends the indication information to the first host node, and the first host node configures the CGI of the X cells according to the indication information.

In a possible implementation manner, the second host node sends a fifth message to the first host node when receiving the third message, wherein the content included in the fifth message is the same as the content included in the third message; the connection between the relay device and the host node is switched from the second host node to the first host node; the second host node receives a sixth message from the first host node, the sixth message including the same content as the fourth message, so as to feed back the CGIs of the X cells to the relay device.

In one possible implementation manner, the second host node acquires the CGI used by the first host node and the node identifier of the first host node from the first host node when receiving the third message, so as to configure the CGIs of the X cells, so as to feed back the CGIs of the X cells to the relay device. Wherein the CGI used by the first host node is different from the CGI of the X cells; the node identification of the first host node is used for configuring a second CGI; the connection of the relay device with the home node is switched from the second home node to the first home node.

In a tenth aspect, embodiments of the present application provide an identification configuration method that may be performed by a first host node, or by a module in the first host node, for example by a processor, chip, or system-on-chip, or the like. The method may include: the first host node receives a fifth message from the second host node, wherein the fifth message comprises configuration information of X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; the connection between the relay device and the host node is switched from the second host node to the first host node; the second host node sends a sixth message comprising CGIs of X cells, one cell corresponding to each CGI.

As can be seen, the second host node requests the first host node to configure CGIs for the X cells of the relay device, so that the second host node configures a plurality of CGIs for the relay device, thereby being beneficial to improving the stability of communication.

In one possible implementation, the third message further includes indication information, and the first host node configures CGIs of the X cells according to the indication information.

In an eleventh aspect, embodiments of the present application provide an identification configuration method, which may be performed by a relay device, or by a module in the relay device, for example, by a processor, a chip, or a chip system, or the like. The method may include: the relay device sends a seventh message to the second host node, wherein the seventh message comprises information of the first host node; receiving an eighth message from the second host node, the eighth message including the first CGI and the second CGI; wherein, the first CGI and the second CGI have a corresponding relation; the first CGI is a CGI of a first cell of the relay device, and the second CGI is a CGI of a second cell of the relay device, the second CGI being related to information of the first home node.

It can be seen that the relay device sends the information of the first home node to the second home node, so that the second home node configures the second CGI for the second cell of the relay device, thereby helping to improve the stability of communication.

In one possible implementation manner, before sending the seventh message to the second host node, the relay device acquires, from the broadcast message of the first host node, the CGI used by the first host node and length information of the node identifier of the first host node, where the first CGI, the second CGI and the CGI used by the first host node are different, so as to ensure that the CGI has global uniqueness.

In one possible implementation, the information of the first host node includes a node identifier of the first host node, and the relay device determines, before sending the seventh message to the second host node, the node identifier of the first host node according to the CGI used by the first host node in the broadcast message of the first host node and the length information of the node identifier of the first host node.

In another possible implementation, the information of the first host node includes a CGI used by the first host node and length information of a node identification of the first host node. The relay device directly carries the content in the broadcast message of the first host node in the seventh message and sends the seventh message to the second host node.

In a twelfth aspect, embodiments of the present application provide an identification configuration method that may be performed by a second host node, or by a module in the second host node, for example by a processor, chip, or system-on-chip, or the like. The method may include: the second host node receives a seventh message from the relay device, the seventh message including information of the first host node; transmitting an eighth message to the relay device, the eighth message including the first CGI and the second CGI; wherein, the first CGI and the second CGI have a corresponding relation; the first CGI is a CGI of a first cell of the relay device, and the second CGI is a CGI of a second cell of the relay device, the second CGI being related to information of the first home node.

It can be seen that, when the second host node receives the information from the first host node of the relay device, the second host node configures the second CGI for the second cell of the relay device, thereby helping to improve the stability of communication.

In one possible implementation, the information of the first host node includes a node identifier of the first host node, and the second host node configures a second CGI for a second cell of the relay device according to the node identifier of the first host node.

In another possible implementation manner, the information of the first host node includes a CGI used by the first host node and length information of a node identifier of the first host node, and further, the second host node determines the node identifier of the first host node according to the CGI used by the first host node and the length information of the node identifier of the first host node; and configuring a second CGI for a second cell of the relay equipment according to the node identification of the first host node. The first CGI, the second CGI and the CGI used by the first host node are different, so that CGI conflict is avoided, and global uniqueness of the CGI is ensured.

In a thirteenth aspect, embodiments of the present application provide an identification configuration method, which may be performed by a relay device, or by a module in the relay device, for example, by a processor, a chip, or a chip system, or the like. The method may include: the relay device sends a seventh message to the second host node, wherein the seventh message comprises information of the first host node and configuration information of X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; an eighth message is received from the second host node, the eighth message including CGIs of X cells, one cell corresponding to each CGI.

It can be seen that the relay device sends the configuration information of the X cells to the second home node, so that the second home node configures CGI for the multiple cells of the relay device, thereby helping to improve stability of communication.

In one possible implementation, the seventh message further includes indication information for indicating CGI configuring the X cells.

In one possible implementation, the relay device obtains, from the broadcast message of the first host node, the CGI used by the first host node and the length information of the node identifier of the first host node, before sending the seventh message to the second host node, where the CGIs of X cells are different from the CGI used by the first host node.

In one possible implementation, the information of the first host node includes a node identifier of the first host node, and the relay device determines, before sending the seventh message to the second host node, the node identifier of the first host node according to the CGI used by the first host node and length information of the node identifier of the first host node.

In one possible implementation manner, the configuration information of the X cells includes configuration information of Y cells, where Y is an integer greater than or equal to 1. The Y cells are cells of a second distributed unit of the relay device, the cells of the second distributed unit comprising one or more cells of the relay device. The second distributed unit may be understood as a distributed unit of the relay device under the control of the second home node, i.e. a distributed unit of the relay device controlled by the home node before handover. Further, for the CGI of the Y cells included in the CGI of the X cells, the eighth message further includes identification information of the Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In a fourteenth aspect, embodiments of the present application provide an identification configuration method that may be performed by a second host node, or by a module in the second host node, for example by a processor, chip, or system-on-chip, or the like. The method may include: the second host node receives a seventh message from the relay device, wherein the seventh message comprises information of the first host node and configuration information of X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; and sending an eighth message to the relay device, wherein the eighth message comprises CGIs of X cells, and one cell corresponds to one CGI.

It can be seen that the second home node configures CGI for a plurality of cells of the relay device when receiving the configuration information of the X cells from the relay device, thereby helping to improve stability of communication.

In one possible implementation manner, the information of the first host node includes a node identifier of the first host node, and then the second host node configures CGIs of X cells according to the node identifier of the first host node, where the CGIs of X cells are different from CGIs used by the first host node to ensure that the CGIs have global uniqueness.

In another possible implementation manner, the information of the first host node includes a CGI used by the first host node and length information of a node identifier of the first host node, and further, the second host node determines the node identifier of the first host node according to the CGI used by the first host node and the length information of the node identifier of the first host node; and configuring CGI of the X cells according to the node identification of the first host node. Wherein the CGIs of the X cells are different from the CGIs used by the first host node to avoid CGI collision.

In one possible implementation, the seventh message further includes indication information, and the first host node configures CGIs of the X cells according to the indication information.

In a fifteenth aspect, embodiments of the present application provide an identification configuration method that may be performed by a relay device, or by a module in the relay device, for example, by a processor, chip, or system-on-chip, or the like. The relay device includes a mobile terminal and a distributed unit. The method may include: the mobile terminal of the relay device is used for acquiring the CGI used by the first host node and the length information of the node identifier of the first host node from the broadcast message of the first host node; determining the node identification of the first host node according to the CGI used by the first host node and the length information of the node identification of the first host node; transmitting a node identification of a first host node to a distributed unit of the relay device; and the distributed unit of the relay equipment is used for configuring a second CGI according to the node identification of the first host node, wherein the second CGI is the CGI of a second cell of the relay equipment.

As can be seen, the mobile terminal of the relay device sends the determined node identifier of the first home node to the distributed unit of the relay device, and the distributed unit of the relay device configures the second CGI for the second cell, thereby being beneficial to improving the stability of communication.

In one possible implementation manner, the distributed unit of the relay device is further configured to replace the first CGI with the second CGI, so as to ensure that the CGI has global uniqueness, thereby helping to promote stability of service communication between the relay device and a UE connected to the relay device. Wherein the first CGI is a CGI of a first cell of the relay device.

In a sixteenth aspect, embodiments of the present application provide an identification configuration method, which may be performed by a relay device, or by a module in the relay device, for example, by a processor, a chip, or a chip system, or the like. The relay device includes a mobile terminal and a distributed unit. The method may include: the mobile terminal of the relay device is used for acquiring the CGI used by the first host node and the length information of the node identifier of the first host node from the broadcast message of the first host node; sending CGI used by the first host node and length information of node identification of the first host node to a distributed unit of the relay equipment;

The distributed unit of the relay equipment is used for determining the node identification of the first host node according to the CGI used by the first host node and the length information of the node identification of the first host node; and configuring a second CGI according to the node identification of the first host node, wherein the second CGI is the CGI of a second cell of the relay equipment.

As can be seen, the distributed unit of the relay device determines the node identifier of the first host node, so as to configure the second CGI for the second cell, which is helpful for improving the stability of communication.

In a seventeenth aspect, the present application provides a communication apparatus, which may be a relay device, or may be an apparatus in a relay device, or may be an apparatus that can be used in a matching manner with a relay device. The communication device may also be a chip system. The communication device may perform the method of the first, third, sixth, eighth, eleventh, thirteenth, fifteenth or sixteenth aspect. The functions of the communication device can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the functions described above. The unit or module may be software and/or hardware. The operations and advantageous effects performed by the communication device may be referred to the methods and advantageous effects described in the third, sixth, eighth, eleventh, thirteenth, fifteenth or sixteenth aspect of the first aspect.

In an eighteenth aspect, the present application provides a communication device, which may be the first host node, a device in the first host node, or a device that can be used in cooperation with the first host node. The communication device may also be a chip system. The communication device may perform the method of the second, fifth, seventh or tenth aspect. The functions of the communication device can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the functions described above. The unit or module may be software and/or hardware. The operations and advantageous effects performed by the communication device may be referred to the methods and advantageous effects described in the second, fifth, seventh or tenth aspect.

In a nineteenth aspect, the present application provides a communications device that may be a second host node, a device in the second host node, or a device that is capable of being used in cooperation with the second host node. The communication device may also be a chip system. The communication device may perform the method of the fourth, ninth, twelfth or fourteenth aspect. The functions of the communication device can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the functions described above. The unit or module may be software and/or hardware. The operations and advantageous effects performed by the communication device may be found in the method and advantageous effects described in the fourth, ninth, twelfth or fourteenth aspect.

In a twentieth aspect, the present application provides a communication device comprising a processor coupled to a memory for storing a program or instructions that, when executed by the processor, cause the communication device to perform the method of any one of the first to sixteenth aspects.

In a twenty-first aspect, the present application provides a communication device comprising a processor and interface circuitry for receiving signals from or transmitting signals from other communication devices than the communication device to the processor, the processor being operable to implement a method as in any of the first to sixteenth aspects by logic circuitry or executing code instructions.

In a twenty-second aspect, the present application provides a computer-readable storage medium having stored therein a computer program or instructions which, when executed by a communication device, implement the method as in any of the first to sixteenth aspects.

In a twenty-third aspect, the present application provides a computer program product comprising instructions which, when read and executed by a communication device, cause the communication device to perform the method of any one of the first to sixteenth aspects.

Twenty-fourth aspects of the present application provide a communication system including an access and mobility management function (access and mobility management function, AMF) network element, a second home node, a first home node, and a relay device;

an AMF network element configured to receive a node identification of a first home node from a first home node; receiving a ninth message from the second home node, the ninth message including configuration information of the X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; configuring CGI of X cells according to node identification of a first host node and configuration information of the X cells, wherein one cell corresponds to one CGI; transmitting a tenth message to the first host node, the tenth message comprising CGIs of the X cells;

a first home node for sending an eleventh message to the relay device, the eleventh message comprising CGIs of the X cells.

It can be seen that the AMF network element configures CGIs for a plurality of cells of the relay device, and sends the CGIs to the first home node, and the first home node informs the relay device of the CGIs, so as to help to improve communication stability.

In one possible implementation, the AMF network element is further configured to receive a CGI used by the first host node from the first host node, and the second message further includes a CGI used by the first host node, where the CGI used by the first host node is different from the CGI of the X cells.

In one possible implementation, the ninth message further includes indication information, where the indication information is used to indicate CGI of the configured X cells.

In one possible implementation manner, the configuration information of the X cells includes configuration information of Y cells, where Y is an integer greater than or equal to 1. The Y cells are cells of a second distributed unit of the relay device, the cells of the second distributed unit comprising one or more cells of the relay device. The second distributed unit may be understood as a distributed unit of the relay device under the control of the second home node, i.e. a distributed unit of the relay device controlled by the home node before handover. Further, for the CGI of Y cells included in the CGI of X cells, the tenth message and the eleventh message further include identification information of the Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In a twenty-fifth aspect, the present application provides a communication system including an AMF network element, a second home node, a first home node, and a relay device;

an AMF network element configured to receive a node identification of a first home node from a first home node; receiving a twelfth message from the second home node, the twelfth message including configuration information of the X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; configuring CGI of X cells according to node identification of a first host node and configuration information of the X cells, wherein one cell corresponds to one CGI; transmitting a thirteenth message to the second host node, the second message comprising CGIs of the X cells;

a second home node for sending a fourteenth message to the relay device, the fourteenth message comprising CGIs of the X cells.

It can be seen that the AMF network element configures CGIs for a plurality of cells of the relay device, and sends the CGIs to the second home node, and the second home node informs the relay device of the CGIs, which is helpful for improving communication stability.

In one possible implementation, the twelfth message further includes indication information for indicating CGI configuring the X cells.

In one possible implementation, the configuration information of the X cells includes configuration information of Y cells, Y being an integer greater than or equal to 1. The Y cells are cells of a second distributed unit of the relay device, the cells of the second distributed unit comprising one or more cells of the relay device. The second distributed unit may be understood as a distributed unit of the relay device under the control of the second home node, i.e. a distributed unit of the relay device controlled by the home node before handover. Further, for the CGI of Y cells included in the CGI of X cells, the thirteenth message and the fourteenth message further include identification information of the Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In a twenty-sixth aspect, the present application provides a communication system, including an AMF network element, a second home node, a first home node, and a relay device;

an AMF network element configured to receive a node identification of a first home node from a first home node; transmitting a fifteenth message to the second host node, the fifteenth message including a node identification of the first host node;

the second host node is used for configuring CGI of X cells according to the node identification of the first host node and the configuration information of the X cells, and one cell corresponds to one CGI; transmitting a sixteenth message to the relay device, the sixteenth message including CGIs of the X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1.

Therefore, the AMF network element informs the second host node of the node identification of the first host node, and the second host node configures the CGI of the cells, thereby being beneficial to improving the communication stability.

In one possible implementation, the AMF network element is further configured to receive a CGI used by the first host node from the first host node, where the fifteenth message further includes the CGI used by the first host node, and the CGI used by the first host node is different from the CGI of the X cells to avoid CGI collision.

In one possible implementation, the fifteenth message further includes indication information for indicating CGI configuring the X cells. And the second host node configures CGI of X cells according to the indication information and in combination with the node identification of the first host node.

In one possible implementation manner, the configuration information of the X cells includes configuration information of Y cells, where Y is an integer greater than or equal to 1. The Y cells are cells of a second distributed unit of the relay device, the cells of the second distributed unit comprising one or more cells of the relay device. The second distributed unit may be understood as a distributed unit of the relay device under the control of the second home node, i.e. a distributed unit of the relay device controlled by the home node before handover. Further, for the CGI of the Y cells included in the CGI of the X cells, the sixteenth message further includes identification information of the Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In a twenty-seventh aspect, the present application provides a communication system including an intelligent control device, a second home node, a first home node, and a relay device;

the intelligent control equipment is used for receiving the node identification of the first host node from the first host node and the CGI used by the first host node; receiving a seventeenth message from the relay device or the second hosting node, the seventeenth message including configuration information of the X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; configuring the CGI of the X cells according to the node identification of the first host node, the CGI used by the first host node and the configuration information of the X cells, wherein one cell corresponds to one CGI, and the CGI used by the first host node is different from the CGI of the X cells; transmitting an eighteenth message to the first host node, the eighteenth message including CGIs of the X cells;

a first home node for sending a nineteenth message to the relay device, the nineteenth message comprising CGIs of the X cells.

Therefore, the intelligent control device configures CGI for a plurality of cells of the relay device, sends the CGI to the first host node, and the first host node informs the relay device of the CGI, so that the communication stability is improved.

In one possible implementation, the seventeenth message further includes indication information, where the indication information is used to indicate CGI configuring the X cells.

In one possible implementation, the X cells are cells of a first distributed unit of the relay device, where the cells of the first distributed unit include one or more cells of the relay device. The first distributed unit may be understood as a distributed unit of the relay device under the control of the first home node, that is, a distributed unit of the relay device controlled by the home node after the handover.

In one possible implementation manner, the configuration information of the X cells includes configuration information of Y cells, where Y is an integer greater than or equal to 1. The Y cells are cells of a second distribution unit of the relay device, and the cells of the second distribution unit include one or more cells of the relay device. The second distributed unit may be understood as a distributed unit of the relay device under the control of the second home node, i.e. a distributed unit of the relay device controlled by the home node before handover. Further, for the CGI of Y cells included in the CGI of X cells, the eighteenth message and the nineteenth message further include identification information of Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In a twenty-eighth aspect, the present application provides a communication system, including an intelligent control device, a second home node, a first home node, and a relay device;

the intelligent control equipment is used for receiving the node identification of the first host node from the first host node and the CGI used by the first host node; receiving a twentieth message from the relay device or the second home node, the twentieth message including configuration information of the X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; configuring the CGI of the X cells according to the node identification of the first host node, the CGI used by the first host node and the configuration information of the X cells, wherein one cell corresponds to one CGI, and the CGI used by the first host node is different from the CGI of the X cells; transmitting a twenty-first message to the second host node, the twenty-first message comprising CGIs of the X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1;

a second hosting node for sending a twenty-second message to the relay device, the twenty-second message comprising CGIs of the X cells.

Therefore, the intelligent control device configures CGI for a plurality of cells of the relay device, sends the CGI to the second host node, and the second host node informs the relay device of the CGI, so that the communication stability is improved.

In one possible implementation, the twentieth message further includes indication information for indicating CGI configuring the X cells.

In one possible implementation manner, the configuration information of the X cells includes configuration information of Y cells, where Y is an integer greater than or equal to 1. The Y cells are cells of a second distributed unit of the relay device, the cells of the second distributed unit comprising one or more cells of the relay device. The second distributed unit may be understood as a distributed unit of the relay device under the control of the second home node, i.e. a distributed unit of the relay device controlled by the home node before handover. Further, for the CGI of the Y cells included in the CGI of the X cells, the twentieth message and the twenty-first message further include identification information of the Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In a twenty-ninth aspect, the present application provides a communication system, including an intelligent control device, a second home node, a first home node, and a relay device;

the intelligent control equipment is used for receiving the node identification of the first host node from the first host node and the CGI used by the first host node; transmitting a twenty-third message to the second host node, the twenty-third message including the node identification of the first host node and the CGI used by the first host node;

the second host node is used for configuring the CGI of X cells according to the node identification of the first host node and the CGI used by the first host node, and one cell corresponds to one CGI; transmitting a twenty-fourth message to the relay device, the twenty-fourth message including CGIs of the X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1.

Therefore, the intelligent control device informs the second host node of the node identification of the first host node and the CGI used by the first host node, and the second host node configures the CGI of a plurality of cells, so that the communication stability is improved.

In one possible implementation manner, the configuration information of the X cells includes configuration information of Y cells, where Y is an integer greater than or equal to 1. The Y cells are cells of a second distributed unit of the relay device, the cells of the second distributed unit comprising one or more cells of the relay device. Further, for the CGI of the Y cells included in the CGI of the X cells, the twenty-fourth message further includes identification information of the Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In a thirty-third aspect, the present application provides a communication system including an intelligent control device, a second home node, a first home node, and a relay device;

the intelligent control equipment is used for receiving the node identification of the first host node from the first host node and the CGI used by the first host node; receiving a twenty-fifth message from the relay device or the second home node, the twenty-fifth message including configuration information of the X cells; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1; configuring the CGI of the X cells according to the node identification of the first host node, the CGI used by the first host node and the configuration information of the X cells, wherein one cell corresponds to one CGI, and the CGI used by the first host node is different from the CGI of the X cells; a twenty-fifth message is sent to the relay device, the twenty-sixth message comprising CGIs of the X cells.

The AMF network element configures the CGI of the C cells according to the acquired node identification of the first host node and the CGI used by the first host node, and informs the relay device of the CGI of the X cells, thereby being beneficial to improving the communication stability.

In one possible implementation, the twenty-fifth message further includes indication information for indicating CGI configuring the X cells.

In one possible implementation manner, the configuration information of the X cells includes configuration information of Y cells, where Y is an integer greater than or equal to 1. The Y cells are cells of a second distributed unit of the relay device, the cells of the second distributed unit comprising one or more cells of the relay device. Further, for the CGI of the Y cells included in the CGI of the X cells, the twenty-sixth message further includes identification information of the Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In a thirty-first aspect, the present application provides a communication system comprising an intelligent control device, a second hosting node, a first hosting node, and a relay device;

the intelligent control equipment is used for receiving the node identification of the first host node from the first host node and the CGI used by the first host node; a twenty-seventh message is sent to the relay device, wherein the twenty-seventh message comprises the node identification of the first host node and the CGI used by the first host node;

the relay equipment is used for configuring the CGI of X cells according to the node identification of the first host node and the CGI used by the first host node, wherein one cell corresponds to one CGI; wherein, X cells are cells of the relay device; x is an integer greater than or equal to 1.

Therefore, the intelligent control device informs the relay device according to the node identification of the first host node and the CGI used by the first host node, and the relay device configures the CGI of the X cells, thereby being beneficial to improving the communication stability.

In one possible implementation, the twenty-seventh message further includes indication information, where the indication information is used to indicate CGI of the configured X cells.

In one possible implementation manner, the configuration information of the X cells includes configuration information of Y cells, where Y is an integer greater than or equal to 1. The Y cells are cells of a second distributed unit of the relay device, the cells of the second distributed unit comprising one or more cells of the relay device.

Drawings

Fig. 1 is a schematic diagram of a wireless relay scenario;

fig. 2 is a schematic diagram of a new air interface cell global identity (NR cell global identifier, NCGI);

FIG. 3A is an exemplary diagram of a scenario in which the present application is applied;

FIG. 3B is an exemplary diagram of a host node centralized unit (IAB donor centralized unit, IAB donor CU) switch;

FIG. 3C is an exemplary diagram of a system architecture to which the present application may be applied;

fig. 4 is a schematic flow chart of a method for configuring a identifier according to an embodiment of the present application;

fig. 4A is a schematic flow chart of another method for configuring a identifier according to an embodiment of the present application;

fig. 5 is a flowchart of another method for configuring a identifier according to an embodiment of the present application;

fig. 5A to 5E are schematic flow diagrams of five identifier configuration methods according to embodiments of the present application;

FIG. 6 is a flowchart of another method for configuring a tag according to an embodiment of the present application;

FIG. 6A is a flowchart illustrating another method for configuring a tag according to an embodiment of the present application;

fig. 7 is a flowchart of another method for configuring a flag according to an embodiment of the present application;

fig. 7A to 7B are schematic flow diagrams of two identifier configuration methods according to an embodiment of the present application;

fig. 8 is a diagram of an IAB system based on an open-radio access network, O-RAN architecture;

FIG. 9 is a flowchart of another method for configuring a tag according to an embodiment of the present application;

fig. 9A to 9D are schematic flow diagrams of four identifier configuration methods according to an embodiment of the present application;

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

fig. 11 is a schematic structural diagram of another communication device provided in the present application.

Detailed Description

In this application, the words "first," "second," and the like are used to distinguish between identical or similar items that have substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

It should be understood that in this application, "at least one" refers to one or more; "plurality" means two or more. In addition, "equal to" may be used in conjunction with "greater than" or "less than" in this application. Under the condition of being equal to and being greater than, adopting a technical scheme of being greater than; under the condition of being used together with 'equal to' and 'less than', the technical scheme of 'less than' is adopted.

Related names or terms referred to in the present application are set forth below to facilitate understanding by those skilled in the art.

1, IAB System

Fifth generation (5) ^th -generation, 5G) mobile communication compared with fourth generation (4 ^th -generation, 4G) mobile communications, puts more stringent demands on various performance indicators of the network. For example, capacity is improved by 1000 times, coverage requirements are wider, reliability is ultrahigh, and time delay is low. On the one hand, considering that the high-frequency carrier frequency resources are abundant, in the hot spot area, in order to meet the 5G ultra-high capacity requirement, the networking by utilizing the high-frequency small station is becoming popular. The high-frequency carrier has poor propagation characteristics, serious shielding attenuation and poor coverage, so that a large number of small stations are required to be densely deployed, correspondingly, the cost for providing optical fiber backhaul for the small stations which are densely deployed is high, the construction difficulty is high, and an economic and convenient backhaul scheme is required. On the other hand, from the aspect of wide coverage requirement, network coverage is provided in some remote areas, the deployment difficulty of optical fibers is high, the cost is high, and flexible and convenient access and return schemes are also required to be designed. The IAB technology provides an idea for solving the two problems: the access link (access link) and the backhaul link (backhaul link) both adopt wireless transmission schemes, so that the optical fiber deployment is reduced.

In the IAB system, an IAB node (IAB node) may also be referred to as a Relay Node (RN), a relay device, or the like. The IAB node may provide radio access services for the UE, and traffic data of the UE is transmitted by the relay device via a backhaul link to an IAB host (IAB node). The IAB node may also be referred to as a home node or home base station or home device, etc.

The IAB node is composed of a mobile terminal (mobile termination, MT) part and a Distributed Unit (DU) part. That is, the IAB node includes MT and DU. When the IAB node faces to the father node, the IAB node can be used as an MT, namely, the role of the MT; an IAB node may be considered a network device, i.e. the role of a DU, when it is towards its child node (which may be another relay device or UE).

The IAB donor may be an access network device with a complete base station function, or may be an access network device with a Centralized Unit (CU) and DU split configuration. The IAB node is connected to a core network element (e.g. to a 5G core (5 gc) network element) serving the UE and provides a wireless backhaul function for the IAB node. For convenience of description, the IAB donor CU is abbreviated as a donor CU, and the IAB donor DU is abbreviated as a donor DU. The donor CU may be in a form in which a Control Plane (CP) and a User Plane (UP) are separated. For example, a donor CU may consist of one donor CU-CP and one (or more) donor CU-UP.

The IAB node is connected to the core network via an IAB node. For example, under the 5G architecture of stand alone networking (SA), an IAB node is connected to a 5GC network element via an IAB donor. In a 5G architecture of non-independent Networking (NSA) (e.g., dual-connectivity (dual connectivity, DC) or multi-connectivity (MC)), an IAB node may be connected to an evolved packet core (evolved packet core, EPC) via an evolved NodeB (eNB) or to a 5G core via an IAB node on a main path.

In an IAB system, one or more IAB nodes may be included on one transmission path between a UE and an IAB node. Each IAB node maintains not only a backhaul link towards the parent node, but also an access link with the child node. If the child node of the IAB node is a UE, the link between the IAB node and the UE is an access link. If the child node of the IAB node is another IAB node, the link between the IAB node and the other IAB node is a backhaul link. For example, referring to the wireless relay scenario shown in fig. 1, in the path "UE1→iab node 4→iab node 3→iab node 1→iab node", UE1 accesses IAB node 4 through an access link, IAB node 4 connects IAB node 3 through a backhaul link, IAB node 3 connects IAB node 1 through a backhaul link, and IAB node 1 connects IAB node through a backhaul link. In fig. 1, black double-headed arrows represent backhaul links, and gray double-headed arrows represent access links.

The relay device in the embodiment of the present application may be an access IAB node or an intermediate IAB node. The access IAB node refers to an IAB node to which the UE accesses, and the intermediate IAB node refers to an IAB node that provides backhaul service for the UE or the IAB node. For example, see fig. 1, in path "UE1→iab node 4→iab node 3→iab node 1→iab donor", IAB node 4 is an access IAB node, and IAB node 3 and IAB node 1 are intermediate IAB nodes. It should be noted that, for a UE accessing an IAB node, the IAB node is accessed; one IAB node is an intermediate IAB node for UEs accessing other IAB nodes. Whether one IAB node is an access IAB node or an intermediate IAB node is not fixed, depending on the specific application scenario.

The host node in the embodiment of the present application may be an IAB donor, where the CU and the DU of the IAB donor may use a separate architecture or not, as the case may be.

2，CGI

The CGI is used to identify a cell globally or globally. For example, in a New Radio (NR) system, the CGI may be a new air cell global identity (NR cell global identifier, NCGI). With the evolution of standards and the development of communication technology, CGIs may adopt different names in different communication systems, for example, the name of CGI in NR system and generation 6 (6 ^th -generation, 6G) the names of CGIs in a mobile communication system may be different.

Illustratively, for an example of an NCGI, reference may be made to the schematic diagram of an NCGI shown in FIG. 2. The NCGI consists of a public land mobile network (public land mobile network, PLMN) Identity (ID) to which the cell belongs and an NR Cell Identity (NCI). The PLMN ID is used to identify the PLMN to which the cell belongs and the NCI is used to identify the NR cell. The NCI is fixed to 36 bits (bits) in length and consists of a gNB ID and a cell ID (cell ID). The positional relationship between the bits corresponding to the gNB ID and the bits corresponding to the cell ID may be as shown in fig. 2. The bit range of gNB ID is 22-32 bits, and the bit range of cell ID is 4-14 bits. The gNB ID is used for identifying a base station or network equipment to which the cell belongs, and the cell ID is used for identifying the cell. In the embodiment of the application, CGI is described by taking NCGI as an example.

The following describes the scenario and system architecture of the application of the present application.

Please refer to fig. 3A, which is an exemplary diagram of a scenario in which the present application is applied. In fig. 3A, a wireless reception point mounted on a vehicle (e.g., a mobile relay vehicle (Vehicle Mounted Relay, VMR) or the like) represents an IAB node that moves with the movement of the vehicle, for example, from an area (1) to an area (2), the area (1) belonging to the coverage area of IAB donor 1, and the area (2) belonging to the coverage area of IAB donor 2. The change in the IAB donor linked to the IAB node may result from a change in the geographic location of the IAB node. That is, the mobile IAB node may switch the IAB node, and thus the connection relationship between the DU of the IAB node and the IAB node CU may change. For example, the connection of the DU of the IAB node to the IAB donor CU is switched from the connection to the IAB donor CU1 to the connection to the IAB donor CU 2. A moving IAB node may also be described as an IAB node having mobility.

For example, see the exemplary diagram of an IAB donor CU switch shown in FIG. 3B. In FIG. 3B, IAB doser CU1 and IAB doser DU1 can be understood as IAB doser before handover, i.e., source (source) IAB doser, i.e., IAB doser 1 is source IAB doser; the IAB donor CU2 and IAB donor DU2 may be understood as IAB donor after handover, i.e. target (target) IAB donor, i.e. IAB donor 2 is target IAB donor. IAB node 1 (including IAB node MT1 and IAB node DU 1) and IAB node 2 (including IAB node MT2 and IAB node DU 2) are intermediate IAB nodes; IAB node 3 is a mobile IAB node and is also an access IAB node. Optionally, the IAB node 3 includes two logical DUs, namely, an IAB node DU3a and an IAB node DU3b, where the IAB node DU3a has established a connection with the IAB node CU1 through the F1 interface, and the IAB node DU3b is used as a DU to be activated, and is activated after waiting for the IAB node 3 to move to be within the range of the IAB node 2. In fig. 3B, IAB node 3 is taken as a mobile IAB node, and in practical application, the mobile IAB node may be an access IAB node or an intermediate IAB node, as the case may be.

Note that, the two logical DUs included in the IAB node 3 may be physically the same DU. In order to distinguish between DUs that are enabled after moving to within the range of a different IAB donor, the DUs of the mobile IAB node are logically divided into at least two DUs. For example, IAB node 3 logically further includes an IAB node DU3c for being enabled after IAB node 3 moves to be within the range of IAB node 3.

The embodiment of the application is not only suitable for the scene that the IAB node is a mobile IAB node, but also suitable for the scene that the IAB node is a fixed geographic position. The embodiments of the present application may also be applied to other relay systems besides the IAB system.

Please refer to fig. 3C, which is an exemplary diagram of a system architecture to which the present application is applied. The system architecture shown in fig. 3C includes a first hosting node, a second hosting node, and a relay device.

Wherein the first host node and the second host node are both IAB nodes. The IAB donor may include one IAB donor CU and at least one IAB donor DU. The IAB dosor CU may include one IAB dosor CU-CP and at least one IAB dosor CU-UP. Within an IAB donor CU, the interface between the IAB donor CU-CP and the IAB donor CU-UP may be referred to as an E1 interface. Within the IAB donor, the interface between the IAB donor DU and the IAB donor CU-CP may be referred to as the F1-C interface, and the interface between the IAB donor DU and the IAB donor CU-UP may be referred to as the F1-U interface. A connection relationship can be established between one IAB donor and another IAB donor through an IP network.

An F1 interface is arranged between the DU of the relay equipment and the host node, and the F1 interface comprises a control surface part and a user surface part. Wherein the user plane part is maintained between the DU and the IAB donor CU-UP of the relay device and the control plane part is maintained between the DU and the IAB donor CU-CP of the relay device.

When the relay device operates in the SA architecture, the relay device is connected to one parent node in a single manner, or is connected to two parent nodes in a dual manner, wherein the two parent nodes can be controlled by the same IAB donor, or respectively, by different IAB donos. The F1 interface is established between the DU of the relay device and an IAB donor, which may be connected to a 5G core network (5 GC). Wherein the IAB-donor-CU-CP is connected to a control plane network element (e.g. AMF network element) in the 5GC via a NG control plane interface, wherein the IAB-donor-CU-UP is connected to a user plane network element (e.g. user plane function (user plane function, UPF) network element) in the 5GC via a NG user plane interface.

When the relay device operates in NSA architecture, the IAB-donor-CU-UP may be connected to the EPC through an S1 user plane interface (e.g. to a Serving Gateway (SGW)), with an LTE Uu air interface connection between the master base station (MeNB) and the MT in which the combining is calculated, and an X2-C interface between the MeNB and the IAB-donor-CU-CP, and the MeNB may be connected to the EPC through an S1 interface (including an S1 interface user plane, and an S1 interface control plane). In another possible case, the MeNB may be replaced by a gNB, the LTE-Uu interface may be replaced by an NR-Uu interface, the gNB may establish an interface of a user plane and/or a control plane with the 5GC, the gNB and the IAB-donor provide dual connectivity service for the IAB node, and the gNB may take the role of a primary base station of the IAB node or the role of a secondary base station.

The relay device may be a mobile IAB node or a fixed geographic location IAB node.

1) For an IAB node where the relay device is in a fixed geographic location, when the gNB supports CU-DU separation architecture, the OAM device will pre-configure the relay device's DU with its subordinate cell information. That is, it is preconfigured to which IAB donor CU the relay device's DU is connected to, and the gNB ID in the NCGI is used to indicate the gNB ID corresponding to the CU that is about to establish the F1 interface. Cell information of a DU subordinate of the pre-configured relay device includes cell information of each cell. The cell information of one cell may include one or more of the following: the NCGI of the cell, the physical cell identity (physical cell identifier, PCI) of the cell, the logical cell identity of the cell, the carrier information of the cell, the tracking area code (tracking area code, TAC) of the cell, the serving PLMN ID, the radio access network area code (radio access network area code, RANAC), etc. The carrier information may include one or more of carrier system, carrier frequency point information, and carrier index.

When the DU of the relay equipment establishes an F1 interface with the IAB donor CU, pre-configured cell information is sent to the IAB donor CU; the IAB donor CU feeds back the NCGI to the DU of the relay device to instruct the DU of the relay device to activate the corresponding cell.

Illustratively, the DU of the relay device sends an F1 setup request (i.e., F1 setup request) to the IAB donor CU. The F1 setup request includes preconfigured cell information. Accordingly, the IAB donor CU feeds back an F1 setup response (i.e., an F1 setup response) to the DU of the relay device. The F1 establishment response comprises NCGI of the cell to be activated, and optionally information such as PCI and the like. The DU of the relay device can activate the cell corresponding to the NCGI through the NCGI carried in the F1 establishment response.

2) For an IAB node where the relay device is mobile, the connection of the relay device to the IAB donor will switch from source IAB donor to target IAB donor, and the connection of the DU to the IAB donor CU of the particular relay device will switch from source IAB donor CU to target IAB donor CU. In this case, if the gNB ID corresponding to the NCGI of the DU subordinate cell of the relay device is still the gNB ID of source IAB donor CU, the protocol specification is not satisfied, and the stability of communication in the IAB system is affected. Therefore, in the case where the IAB donor CU to which the DU of the relay device is connected is switched, the embodiment of the present application may configure the NCGI such that the gNB ID used in the NCGI is the same as the gNB ID of target IAB donor CU, thereby conforming to the protocol specification. In the embodiment of the present application, the first host node is taken as a host node after switching, and the second host node is taken as a host node before switching as an example. That is, for an IAB node in which the relay device is mobile, the first home node is the target IAB node, and the second home node is the source IAB node.

The following describes the method for configuring the identifier provided in the embodiment of the present application in detail in five sections.

In a first part, a first home node configures a CGI for a relay device.

Fig. 4 is a schematic flow chart of a method for configuring a label according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

the relay device sends 401 a first message to a first hosting node. Accordingly, the first hosting node receives the first message from the relay device. Wherein the first message includes first cell identification information.

Optionally, the DU of the relay device sends the first message to the CU of the first hosting node. The DU of the relay device may send the first message to the CU of the first hosting node through the F1 interface. In one implementation, the first message may be an F1 Setup Request message, i.e., an F1 Setup Request message. The F1 setup request message is used to request to setup an F1 interface, i.e. to request to setup an F1 interface between the DU of the relay device and the CU of the first hosting node. That is, the CU of the first hosting node requests a CU establishing the F1 interface for the DU of the relay device. Illustratively, based on fig. 3b, the IAB node DU3 (or the IAB node DU3b if the physical DU is considered to be divisible into a logical DU) may send an F1 setup request message to the IAB node CU2 through the F1 interface to request the establishment of the F1 interface between the IAB node DU3 and the IAB node CU 2.

The first message includes first cell identification information, which is identification information of a first cell of the relay device. The first cell may be any one of a plurality of cells under which the relay device belongs, and may also be any one of a plurality of cells served by the relay device.

In one implementation, for a coverage area where the relay device is movable to the first home node, if it is considered that the DU of the relay device can be divided into logical DUs, the first cell may be any one of at least one cell under which the logical DU is enabled after the movement to the coverage area of the first home node. For example, based on fig. 3B, the first cell may be any one of at least one cell subordinate to the IAB node DU 3B. The relationship between the set of cells under the IAB node DU3a and the set of cells under the IAB node DU3b may be partially the same, or the same or different. The identity may be, for example, the identity of carrier information and thus the identity of cells. If the separation of the DU of the relay device into logical DUs is not considered, the first cell may be any one of the at least one cell that is enabled after moving to the coverage area of the first home node.

In another implementation, the first cell may be any cell of the relay device when an F1 connection exists between the relay device and the second home node for the relay device to move from the coverage area of the second home node to the coverage area of the first home node. An F1 connection exists between the relay device and the second hosting node, i.e. an F1 interface has been established between the DU of the relay device and the CU of the second hosting node. The movement of the relay device from the coverage area of the second home node to the coverage area of the first home node may also be described as a handover of the connection of the relay device to the home node from the second home node to the first home node.

The identification information of the first cell is used to identify the first cell, and may include one or more of the following: PCI, CGI, index (index) of CGI, logical cell identity, carrier information, TAC, PLMN ID, RANAC, etc. Wherein the index of the CGI is used to indicate the CGI. The carrier information may be used to identify cells, with different cell carrier information being different. Optionally, the identification information of the first cell is a CGI of the first cell, i.e. the first CGI. That is, the first CGI is the CGI of the first cell.

In one implementation, the first CGI may be preconfigured. In another implementation, the first CGI may be obtained prior to sending the first message. For example, the relay device may be connected to the host node and switched from the host node 1 to the host node 2 and then from the host node 2 to the host node 3, and before the relay device sends the first message to the host node 3, the first CGI may be obtained by using the method provided in the present application, for example, the host node 2 has configured the first CGI for the relay device.

Optionally, the first message may include one or more of the following in addition to the first cell identification information.

(1) And the node identifier corresponding to the first CGI. The node identifier corresponding to the first CGI is used for identifying an IAB denor to which the first cell belongs, and specifically is used for identifying an IAB denor CU to which the first cell belongs. The present embodiments may use the base station ID of the IAB donor CU to identify the IAB donor CU, e.g., use the gNB ID of the IAB donor CU to identify the IAB donor CU. For the relay device to move from the coverage area of the second home node to the coverage area of the first home node, the node identifier corresponding to the first CGI is used to identify the second home node, i.e. the identifier source IAB donor CU.

In one implementation, the relay device may determine the node identifier corresponding to the first CGI according to the broadcast message of source IAB donor CU. Illustratively, taking the NCGI as an example, when the gNB normally works, the gNB ID can be derived by broadcasting that the NCGI is carried in a PLMN-Identity infolist cell (i.e., PLMN-identity+nr CellIdentity (i.e., NCI) in the cell), and the UE combines the NCI and the gNB ID Length after receiving the broadcast. The gNB ID Length is also carried in this cell. Based on fig. 2, nci=gnb id+cell ID, and the bits occupied by gNB ID are the first 22 to 32 bits in NCI, so gNB ID can be derived from the gNB ID Length and NCI. In the embodiment of the application, the broadcast message of the source IAB donor carries the gNB ID Length, after receiving the broadcast message, the MT of the relay device sends the gNB ID Length in the broadcast message to the DU of the relay device, and the DU of the relay device can deduce the gNB ID of the source IAB donor according to the gNB ID Length, so that the node identifier corresponding to the first CGI can be obtained. That is, the DU of the relay device acquires the gNB ID Length from the broadcast message of the source IAB donor through the MT thereof, so as to derive the gNB ID corresponding to the source IAB donor, so as to carry the node identifier corresponding to the first CGI in the first message.

In another implementation, the relay device may determine, according to the gNB ID corresponding to the source IAB donor obtained from the OAM device, the node identifier corresponding to the first CGI.

(2) And the length information of the node identifier corresponding to the first CGI. The Length information of the node identity may be represented as, for example, a gNB ID Length. The length information of the node identifier corresponding to the first CGI is used for determining the node identifier corresponding to the first CGI, that is, determining the gNB ID corresponding to the first CGI. In one implementation, the DU of the relay device acquires the gNB ID Length from the broadcast message of the source IAB node through the MT thereof, so as to carry the Length information of the node identifier corresponding to the first CGI in the first message. When the first host node receives the length information of the node identifier corresponding to the first CGI, the node identifier corresponding to the first CGI may be determined based on the length information, and the process of deriving the gNB ID by referring to the relay device may be specifically omitted herein. In another implementation manner, the relay device may determine, according to the gNB ID Length corresponding to the source IAB donor obtained from the OAM device, the Length as the Length information of the node identifier corresponding to the first CGI.

(3) Indication information. The indication information indicates that a second CGI is configured, the second CGI being a CGI of a second cell of the relay device. The second cell may be any one of a plurality of cells of the relay device. The second cell may be understood as a cell of the relay device to be activated, and the second CGI may be understood as a CGI of the cell to be activated. The first cell and the second cell are the same cell, for example, the carriers of the first cell and the second cell are the same, or the PCIs of the first cell and the second cell are the same. The first CGI may be understood as an old CGI and the second CGI may be understood as a new CGI, the indication information being used to configure the new CGI. For example, the indication information includes a configuration field with 1 bit, and when the value of the configuration field is 1, the new CGI is indicated to be configured; when the value of the configuration field is 0, it indicates that no new CGI is configured.

In one implementation, for a relay device to move from the coverage area of the second home node to the coverage area of the first home node, the first cell may be any cell of the relay device when controlled by the second home node; the second cell may be any one of the cells of the relay device when controlled by the first home node.

Further, the indication information is further used for indicating to feed back the second CGI or feeding back a correspondence between the first cell identification information and the second CGI. For example, the indication information includes a feedback indication field with 1 bit, and when the value of the feedback indication field is 1, the feedback indication field indicates to feed back the second CGI; and when the value of the feedback indication field is 0, indicating to feed back the corresponding relation between the first cell identification information and the second CGI. It should be noted that, the feedback indication field and the configuration field may be different fields or the same field. For example, a feedback indication field and a configuration field multiplexing 1 bit field, and when the field exists, indicating configuration of the second CGI; when this field is not present, it is indicated that the second CGI is not configured. For existence of the field, when the value of the field is 1, indicating to feed back the second CGI; and when the value of the field is 0, the corresponding relation between the feedback first cell identification information and the second CGI is indicated.

In one implementation, the first cell identification information and the second CGI have a correspondence (or mapping relationship), which may be that the first CGI and the second CGI have a correspondence, so that the relay device replaces the first CGI with the second CGI according to the correspondence. Thereby being beneficial to improving the service communication stability between the relay equipment and the UE connected with the relay equipment. It will be appreciated that the relay device helps to increase the flexibility of the relay device in terms of replacing the old CGI with a new CGI. The correspondence between the first cell identification information and the second CGI may also be that between the first PCI and the second CGI, so that the relay device replaces the CGI of the cell corresponding to the first PCI with the second CGI.

The first hosting node sends 402 a second message to the relay device. Accordingly, the relay device receives the second message from the first hosting node. Wherein the second message includes the first cell identification information and a second CGI.

The first host node, upon receiving the first message, determines whether to configure a second CGI for the second cell. The first host node may determine whether to configure the second CGI in the following manner (1), manner (2), or manner (3).

In the mode (1), the first message includes a node identifier corresponding to the first CGI, and the first host node determines whether the node identifier corresponding to the first CGI is the same as the node identifier of the first host node. If not, the first host node may configure a second CGI for the second cell; if so, the first host node need not configure the second CGI. For example, the node identifier corresponding to the first CGI is gNB ID a, the node identifier of the first host node is gNB ID B, and the node identifiers are different, and the first host node configures a second CGI for the second cell.

In the mode (2), the first message includes length information of a node identifier corresponding to the first CGI, and the first host node determines, according to the length information of the node identifier corresponding to the first CGI, and further determines whether the node identifier corresponding to the first CGI is the same as the node identifier of the first host node. If not, the first host node may configure a second CGI for the second cell; if so, the first host node need not configure the second CGI.

In mode (3), the first message includes indication information, and the first host node configures a second CGI for the second cell.

The above-described modes (1) to (3) are for example, and do not constitute limitations on the embodiments of the present application. In practical applications, the first host node may determine whether to configure the second CGI for the second cell in other manners.

The first host node configures the second CGI if it is determined to configure the second CGI.

In one implementation, the first host node may configure the second CGI according to a node identification of the first host node. That is, the second CGI includes a node identifier of the first host node, or a node identifier corresponding to the second CGI is used to identify the first host node. The node identifier corresponding to the second CGI is different from the node identifier corresponding to the first CGI, the node identifier corresponding to the second CGI is used for identifying the first host node, and the node identifier corresponding to the first CGI is used for identifying the second host node.

Illustratively, taking the second CGI as the second NCGI, the second NCGI is composed of a PLMN ID and a second NCI, where the PLMN ID may be carried in the first cell identification information. Second nci=node identification of the first home node+cell ID of the second cell. In one implementation, the first host node may obtain a configurable range of cell IDs from the OAM device, and select one cell ID from the configurable range as the cell ID of the second cell, so that the first host may obtain the second NCGI in combination with the PLMN id+the node identifier of the first host node+the cell ID of the second cell. The cell ID of the second cell may be different from the cell ID of the first cell, so as to avoid that the same cell ID corresponds to different NCGIs. The cell ID of the second cell may be the same as the cell ID of the first cell to distinguish different host nodes by different node identities.

In another implementation, the first host node may obtain, from the OAM device, a second CGI corresponding to the first cell identification information. That is, the OAM device may pre-configure the second CGI corresponding to the first cell identification information. For example, the relay device is installed on a bus, and the NCGI used by the relay device when traveling to each station may be preconfigured in the OAM device because the travel track of the bus is fixed. When the bus moves from station 1 to station 2, the host node connected with the relay device switches the IAB donor CU2 from the IAB donor CU1, and the IAB donor CU2 acquires the second CGI from the OAM device.

The first host node sends a second message to the relay device in the case of configuring the second CGI. Optionally, the CU of the first hosting node sends the second message to the DU of the relay device. The CU of the first hosting node may send a second message to the DU of the relay device over the F1 interface. In one implementation, in the case where the first message is an F1 Setup request message, the second message may be an F1 Setup Response message, i.e., an F1 Setup Response message, for responding to the F1 Setup request message. The F1 setup response message may indicate that the F1 interface is agreed to be established, i.e. that the F1 interface between the CU of the first hosting node and the DU of the relay device is agreed to be established.

The second message includes the first cell identity and a second CGI. The first cell identity has a correspondence with the second CGI. That is, the second message is used to feed back the first cell identity, the second CGI and the correspondence. The correspondence between the first cell identifier and the second CGI may be that there is a correspondence between the first CGI and the second CGI, so that the relay device replaces the first CGI with the second CGI according to the correspondence, to ensure that the CGI has global uniqueness.

For example, the second message is a response message established for F1, and is used for feeding back the first CGI, the second CGI, and the correspondence between the first CGI and the second CGI. For example, the content included in the F1 setup response message may be described with reference to table 1 below.

TABLE 1

Cell list to be activated (Cells to be Activated List)
	>Cell list item to be activated (Cells to be Activated List Item)
>>NR CGI (i.e. old NCGI)
	>>New NR CGI (i.e. new NCGI)

In table 1, old NCGI may represent a first CGI and new NCGI may represent a second CGI. Table 1 includes old NCGI and new NCGI, implying that there is a correspondence between the two, which can be replaced with new NCGI. F1 setup response message may also include other content, not specifically recited in this application.

In the embodiment shown in fig. 4, the relay device acquires the second CGI from the first host node through the first cell identification information, so as to dynamically acquire the CGI by the relay device, thereby being beneficial to improving the stability of communication.

Fig. 4 exemplifies that the first message includes first cell identification information, i.e., identification information of one cell. If the first message includes identification information of a plurality of cells, the first message may further include an indication information, where the indication information is used to indicate which cells are fed back to the correspondence between the identification information of the cells and the new CGI. The indication information may be independent of or multiplexed with the indication information in the embodiment shown in fig. 4. For example, the first message includes identification information of the cells 1 to 3, and the indication information is used to indicate a correspondence between the identification information of the feedback cell 1 and the new CGI of the cell 1, and a correspondence between the identification information of the feedback cell 2 and the new CGI of the cell 2.

Fig. 4A is a schematic flow chart of another method for configuring a label according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

401a, the relay device sends a first message to a first hosting node. Accordingly, the first hosting node receives the first message from the relay device. Wherein the first message includes configuration information of the X cells.

Optionally, the DU of the relay device sends the first message to the CU of the first hosting node. The DU of the relay device may send the first message to the CU of the first hosting node through the F1 interface. In one implementation, the first message may be a Target F1 Setup Request message, i.e., a Target F1 Setup Request message. The target F1 setup request message is used to request to setup an F1 interface, i.e. to setup an F1 interface between the DU of the relay device and the CU of the first hosting node. That is, the CU of the first hosting node requests to establish the F1 interface for the DU of the relay device, may be a preconfigured IAB donor CU connected to the relay device; the IAB donor CU after the handover or the IAB donor CU to be handed over may be.

The first message includes configuration information of the X cells. The X cells are cells of the relay device, that is, the X cells are X cells in a plurality of cells subordinate to the relay device, or the X cells are X cells in a plurality of cells served by the relay device. X is an integer greater than or equal to 1. The value of X may be the same as or smaller than the number of cells subordinate to the relay device, and the specific value is not limited in the embodiment of the present application.

In one implementation, for a coverage area where the relay device may move to the first home node, if it is considered that the DU of the relay device may be divided into logical DUs, the X cells are cells of a first distributed unit of the relay device, where the cells of the first distributed unit include one or more cells of the relay device. The first distributed unit may be understood as a logical DU enabled after the relay device moves to the coverage area of the first hosting node. The first distributed unit may also be understood as a distributed unit in the relay device controlled by the host node after the handover. For example, based on fig. 3B, the first distributed unit may be an IAB node DU3B.

In another implementation, for a coverage area where the relay device may move to the first home node, if it is not considered that the DU of the relay device may be divided into logical DUs, the X cells may be understood as cells to be activated, which may be activated when the relay device is controlled by the first home node. The cells to be activated may include cells when the relay device is controlled by the second home node, or may include cells when the relay device is controlled by the first home node.

Alternatively, the configuration information of the X cells may be preconfigured. Illustratively, the configuration information of a certain cell of the X cells may include one or more of NCGI, PCI, logical cell identification, carrier information, TAC, PLMN ID, RANAC, and the like.

Optionally, the first message may further include indication information. The indication information is used for indicating the CGI of the configured X cells, and one cell corresponds to one CGI. The indication information may be NCGI Allocation Required Indication, for example. It will be appreciated that the above indication information is used to indicate that the new CGI is configured, and may not indicate the value of X.

Alternatively, the configuration information of the X cells may include configuration information of Y cells, where Y is an integer greater than or equal to 1. In one implementation, for a coverage area where the relay device may move to the first home node, if it is considered that the DU of the relay device may be divided into logical DUs, the Y cells are cells of a second distribution unit of the relay device, the cells of the second distribution unit including one or more cells of the relay device. The second distributed unit may be understood as a distributed unit of the relay device under the control of the second home node, i.e. a distributed unit of the relay device controlled by the home node before handover. For example, based on fig. 3B, the second distributed unit may be an IAB node DU3a.

402a, the first hosting node sends a second message to the relay device. Accordingly, the relay device receives the second message from the first hosting node. Wherein the second message comprises CGIs of X cells.

And under the condition that the first host node receives the first message, configuring CGI for each cell in the X cells according to the indication information so as to obtain the CGI of the X cells. For the CGI of each of the X cells, the node identifier corresponding to the CGI is the node identifier of the first home node. The cell IDs corresponding to the CGI of each cell are different.

The first home node sends a second message to the relay device in case of configuring the CGIs of the X cells. Optionally, the CU of the first hosting node sends the second message to the DU of the relay device. The CU of the first hosting node may send a second message to the DU of the relay device over the F1 interface. In one implementation, in the case that the first message is the Target F1 Setup request message, the second message may be a Target F1 Setup Response message, i.e., a Target F1 Setup Response message, for responding to the Target F1 Setup request message. The target F1 setup response message may indicate that the F1 interface is agreed to be established, i.e. that the F1 interface between the CU of the first hosting node and the DU of the relay device is agreed to be established.

Further, the second message may further include a cell identifier corresponding to each of the X CGIs, so as to establish a one-to-one correspondence between one CGI and one cell. The cell identity may include one or more of the following: PCI, logical cell identification, carrier information or cell ID, etc.

Optionally, for the CGI of the Y cells included in the CGI of the X cells, the second message further includes identification information of the Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In the embodiment shown in fig. 4A, the relay device acquires CGIs of X cells from the first home node through configuration information of the X cells, so as to dynamically acquire a plurality of CGIs by the relay device, thereby being beneficial to improving stability of communication.

In fig. 4A, the first message includes configuration information of X cells, and the second message includes CGIs of the X cells. If the first message includes configuration information of X1 cells, the second message includes CGIs of X2 cells, X1< X2, and X1 and X2 are positive integers, then the second message further includes a cell identifier corresponding to each CGI of the X2 CGIs, so that the relay device knows which CGIs of the cells fed back by the first host node, and knows a correspondence between the CGIs and the cells.

It can be understood that the embodiments shown in fig. 4 and fig. 4A are that the first host node configures a CGI for the relay device, and fig. 4 takes the CGI configuring one cell as an example, and feeds back the correspondence between the old CGI and the new CGI; fig. 4A is a diagram of configuring CGIs of X cells and feeding back the CGIs of the X cells.

And in a second part, the second host node configures CGI for the relay device.

Fig. 5 is a schematic flow chart of another method for configuring a label according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

the relay device sends 501 a third message to the second hosting node. Accordingly, the second hosting node receives the third message from the relay device. Wherein the third message includes the first cell identification information.

The second host node (i.e., source IAB node) may decide whether to trigger the relay device to switch the host node, and in particular, may be determined by the CU of the second host node whether to trigger the relay device to switch the host node. Illustratively, source IAB donor CU decides whether to switch the connection of the relay device to the home node from the second home node to the first home node based on base station load balancing or MT measured signal quality of the relay device, etc. For example, the measured signal quality of the MT of the relay device is fed back to source IAB donor CU, source IAB donor CU, and a handover command is sent to the MT of the relay device according to the measured signal quality, so as to trigger the relay device to handover the home node.

Optionally, the MT of the relay device sends a third message to the CU of the second hosting node upon receiving the handover command from the second hosting node. The third message may be an RRC message.

The third message includes first cell identification information, which is identification information of a first cell of the relay device. The first cell and the first cell identification information may be referred to in the embodiment shown in fig. 4, and the detailed description of the first cell and the first cell identification information is not repeated herein.

Optionally, the third message may further include indication information for indicating configuration of the second CGI. The indication information may be referred to in the embodiment shown in fig. 4, and is not described herein.

The second host node sends 502 a fifth message to the first host node. Accordingly, the first host node receives a fifth message from the second host node. Wherein the fifth message includes the first cell identification information.

Optionally, the CU of the second hosting node sends a fifth message to the CU of the first hosting node based on the Xn interface in case the third message is received. The fifth message includes the same content as the third message. If the third message includes the first cell identification information, the fifth message includes the first cell identification information. If the third message further includes indication information, the fifth message further includes indication information.

The Xn interface is a communication interface between the hosting nodes. Illustratively, the CU of the second hosting node sends the fifth message to the CU of the first hosting node through the handover request signaling, or the CU of the second hosting node sends the fifth message to the CU of the first hosting node through other signaling.

503, the first host node sends a sixth message to the second host node. Accordingly, the second host node receives a sixth message from the first host node. Wherein the sixth message includes the first cell identification information and the second CGI.

The CU of the first hosting node, upon receiving the fifth message, may learn that the relay device will perform a handover across the IAB donor CU and need to configure the second CGI for the second cell. The CU of the first hosting node configures a second CGI for the second cell. The first cell and the second CGI may be referred to in the embodiment shown in fig. 4, and the detailed description of the second cell and the second CGI is not repeated here.

Optionally, the CU of the first hosting node sends a sixth message to the CU of the second hosting node through the Xn interface in case of configuring the second CGI. The sixth message includes the first cell identification information and the second CGI. The content included in the sixth message is the same as the content included in the second message in the embodiment shown in fig. 4, and the detailed description of the second message in the embodiment shown in fig. 4 may be specifically referred to, which is not repeated here.

The second hosting node sends 504 a fourth message to the relay device. Accordingly, the relay device receives a fourth message from the second hosting node. Wherein the fourth message includes the first cell identification information and the second CGI.

Optionally, the CU of the second hosting node sends a fourth message to the MT of the relay device upon receiving the sixth message. The fourth message includes the same content as the sixth message. The fourth message may be an RRC message to instruct the DU of the relay device to activate the second cell.

The MT of the relay device, upon receiving the fourth message, transmits the contents of the fourth message to the DU of the relay device so that the DU of the relay device obtains the second CGI and activates the second cell.

In the embodiment shown in fig. 5, the relay device acquires the second CGI from the first host node through the second host node, so as to dynamically acquire the CGI by the relay device, thereby helping to improve stability of communication.

In fig. 5, taking the example that the third message and the fifth message include the first cell identification information, if the third message and the fifth message include the identification information of a plurality of cells, the third message and the fifth message may further include an indication information, where the indication information is used to indicate which of the correspondence between the identification information of the cells and the new CGI is fed back.

Fig. 5A is a schematic flow chart of another method for configuring a flag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

501a, the relay device sends a third message to the second hosting node. Accordingly, the second hosting node receives the third message from the relay device. Wherein the third message includes configuration information of the X cells.

The second home node (i.e., source IAB node) may decide whether to trigger the relay device to switch the home node, and the detailed description of the procedure is specifically referred to in the embodiment shown in fig. 5, which is not repeated herein.

The third message includes configuration information of the X cells. The configuration information of the X cells may be referred to in the embodiment shown in fig. 4A, and will not be described herein.

Optionally, the third message may further include indication information for indicating CGI configuring the X cells. The indication information may refer to a specific description of the indication information in the embodiment shown in fig. 4A, and is not described herein.

502a, the second home node sends a fifth message to the first home node. Accordingly, the first host node receives a fifth message from the second host node. Wherein the fifth message includes configuration information of the X cells.

Optionally, the CU of the second hosting node sends a fifth message to the CU of the first hosting node based on the Xn interface in case the third message is received. The fifth message includes the same content as the third message.

503a, the first host node sends a sixth message to the second host node. Accordingly, the second host node receives a sixth message from the first host node. Wherein the sixth message includes CGIs of the X cells.

The CU of the first hosting node, upon receiving the fifth message, may learn that the relay device will perform a handover across the IAB donor CUs and needs to configure X CGIs for X cells. The CU of the first hosting node configures CGIs for the X cells. The X CGIs may be referred to in the embodiment shown in fig. 4A, and will not be described herein.

Optionally, the CU of the first hosting node sends a sixth message to the CU of the second hosting node through the Xn interface in case of configuring X CGIs. The sixth message includes CGIs of X cells. The content included in the sixth message is the same as the content included in the second message in the embodiment shown in fig. 4A, and the detailed description of the second message in the embodiment shown in fig. 4A may be specifically referred to, which is not repeated here.

504a, the second hosting node sends a fourth message to the relay device. Accordingly, the relay device receives a fourth message from the second hosting node. Wherein the fourth message includes CGIs of X cells.

Optionally, the CU of the second hosting node sends a fourth message to the MT of the relay device upon receiving the sixth message. The fourth message includes the same content as the sixth message. The fourth message may be a dedicated RRC message to instruct the DU of the relay device to activate X cells.

In the case that the MT of the relay device receives the fourth message, the MT transmits the content in the fourth message to the DU of the relay device so that the DU of the relay device obtains CGIs of the X cells and activates the X cells.

Alternatively, the configuration information of the X cells may include configuration information of Y cells, where Y is an integer greater than or equal to 1.

In one implementation, for a coverage area where the relay device may move to the first home node, if it is considered that the DU of the relay device may be divided into logical DUs, the Y cells are cells of a second distribution unit of the relay device, the cells of the second distribution unit including one or more cells of the relay device. The second distributed unit may be understood as a distributed unit of the relay device under the control of the second home node, i.e. a distributed unit of the relay device controlled by the home node before handover. For example, based on fig. 3B, the second distributed unit may be an IAB node DU3a.

Further, for the CGI of Y cells included in the CGI of X cells, the sixth message and the fourth message further include identification information of the Y cells. For example, the identification information of the Y cells includes first cell identification information, the CGIs of the X cells includes second CGIs, and the first cell identification information has a correspondence relationship with the second CGIs.

In the embodiment shown in fig. 5A, the relay device acquires CGIs of X cells from the first host node through the second host node, so as to dynamically acquire multiple CGIs by the relay device, thereby helping to improve stability of communication.

Fig. 5B is a schematic flow chart of another method for configuring a flag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

501b, the second host node interacts with the first host node with the CGI that the node identified and used.

Alternatively, when the CU of the second host node and the CU of the first host node establish the Xn interface, the gNB ID and the CGI used may be interacted with each other through Xn Setup Request and Xn Setup rspone messages.

Illustratively, the CU of the second hosting node sends an Xn Setup Request message to the CU of the first hosting node, the message including the gNB ID of the second hosting node and the CGI used by the second hosting node. When receiving the Xn Setup Request message, the CU of the first host node learns the gNB ID of the second host node and the CGI used by the second host node from the message, and sends an Xn Setup rspone message to the CU of the second host node, where the message includes the gNB ID of the first host node and the CGI used by the first host node. The CU of the second host node, upon receiving the Xn Setup Rfront message, knows from the message the gNB ID of the first host node and the CGI used by the first host node.

Illustratively, the CU of the first hosting node sends an Xn Setup Request message to the CU of the second hosting node, the message including the gNB ID of the first hosting node and the CGI used by the first hosting node. When receiving the Xn Setup Request message, the CU of the second host node learns the gNB ID of the first host node and the CGI used by the first host node from the message, and sends an Xn Setup rspone message to the CU of the first host node, where the message includes the gNB ID of the second host node and the CGI used by the second host node. The CU of the first host node, upon receiving the Xn Setup Rfront message, knows from the message the gNB ID of the second host node and the CGI used by the second host node.

Wherein the CGI used by the first host node may comprise one or more CGIs and the CGI used by the second host node may comprise one or more CGIs.

502b, the relay device sends a third message to the second hosting node. Accordingly, the second hosting node receives the third message from the relay device. Wherein the third message includes the first cell identification information. Optionally, the third message may further include indication information for indicating configuration of the second CGI.

503b, the second hosting node sends a fourth message to the relay device. Accordingly, the relay device receives a fourth message from the second hosting node. Wherein the fourth message includes the first cell identification information and the second CGI.

The implementation process of step 502b and step 503b may refer to the specific descriptions of step 501 and step 504 in the embodiment shown in fig. 5, and will not be described herein. The difference is that the first host node configures the second CGI for the second cell in fig. 5, and the second host node configures the second CGI for the second cell based on the node identification of the first host node in fig. 5B.

Note that, the first CGI, the second CGI, the CGI used by the first host node, and the CGI used by the second host node are different from each other.

Further, after the connection between the relay device and the host node is switched from the second host node to the first host node, if the first host node finds that the second CGI is the same as the CGI currently used by the first host node, the CU of the first host node reconfigures a CGI for the second cell, and sends the CGI to the DU of the relay device through the signaling of the F1 interface, so that the DU of the relay device replaces the CGI, thereby ensuring global uniqueness of the CGI and helping to improve communication stability.

In the embodiment shown in fig. 5B, the second host node obtains the node identifier of the first host node from the first host node, and configures the second CGI for the second cell of the relay device, so as to implement that the relay device obtains the second CGI from the second host node, thereby helping to improve stability of communication.

Fig. 5B exemplifies that the third message includes the first cell identification information, i.e., includes the identification information of one cell. If the third message includes the identification information of the plurality of cells, the third message may further include an indication information, where the indication information is used to indicate which cells are fed back to the correspondence between the identification information of the new CGI.

Fig. 5C is a schematic flow chart of another method for configuring a flag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

501c, the second host node interacts with the first host node with the CGI that the node identified and used. The implementation process of step 501c may refer to the specific description of step 501B in fig. 5B, which is not repeated herein.

502c, the relay device sends a third message to the second hosting node. Accordingly, the second hosting node receives the third message from the relay device. Wherein the third message includes configuration information of the X cells. Optionally, the third message may further include indication information for indicating CGI configuring the X cells.

503c, the second hosting node sends a fourth message to the relay device. Accordingly, the relay device receives a fourth message from the second hosting node. Wherein the fourth message includes configuration information of the X cells.

The implementation process of step 502c and step 503c may refer to the specific description of step 501a and step 504a in the embodiment shown in fig. 5A, which is not repeated herein. The difference is that the first host node configures the second CGI for the second cell in fig. 5A, and the second host node configures the CGI for the X cells based on the node identification of the first host node in fig. 5C.

It should be noted that, in the CGI of the X cells, the CGI used by the first host node, and the CGI used by the second host node, all are different, so as to ensure global uniqueness of the CGIs.

Further, after the connection between the relay device and the host node is switched from the second host node to the first host node, if the first host node finds that the CGI of a certain cell is the same as the CGI currently used by the first host node, the CU of the first host node reconfigures a CGI for the cell, and sends the CGI to the DU of the relay device through the signaling of the F1 interface, so that the DU of the relay device replaces the CGI, thereby ensuring global uniqueness of the CGI and helping to improve communication stability.

In the embodiment shown in fig. 5C, the second host node obtains the node identifier of the first host node from the first host node, and configures CGIs for the X cells of the relay device, so that the relay device obtains the X CGIs from the second host node, thereby helping to improve stability of communication.

Fig. 5D is a schematic flow chart of another method for configuring a label according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

501d, the relay device receives a broadcast message from the first hosting node. Wherein the broadcast message includes the CGI used by the first host node and length information of the node identification of the first host node.

Wherein the broadcast message is, for example, a system channel block (system information block, SIB) 1.

Optionally, the relay device MT receives a broadcast message from the first hosting node.

502d, the relay device sends a seventh message to the second hosting node. Accordingly, the second hosting node receives the seventh message from the relay device. Wherein the seventh message comprises information of the first host node.

Optionally, the MT of the relay device sends a seventh message to the CU of the second hosting node upon receiving the handover command from the second hosting node. The seventh message may be an RRC message.

In one implementation, the information of the first host node includes a node identification of the first host node. Before sending the seventh message to the second host node, the MT of the relay device determines the node identifier of the first host node according to the CGI used by the first host node in the broadcast message and the length information of the node identifier of the first host node, and carries the node identifier of the first host node in the seventh message.

In another implementation, the information of the first host node includes a CGI used by the first host node and length information of a node identification of the first host node. The relay device directly carries the content in the broadcast message in a seventh message and sends the seventh message to the second host node.

503d, the second hosting node sends an eighth message to the relay device. Accordingly, the relay device receives the eighth message from the second hosting node. Wherein the eighth message includes the first CGI and the second CGI.

Wherein, the first CGI and the second CGI have a corresponding relation; the first CGI is a CGI of a first cell of the relay device, and the second CGI is a CGI of a second cell of the relay device, the second CGI being related to information of the first home node.

In another possible implementation manner, the information of the first host node includes a CGI used by the first host node and length information of a node identifier of the first host node, and further, the second host node determines the node identifier of the first host node according to the CGI used by the first host node and the length information of the node identifier of the first host node; and configuring a second CGI for a second cell of the relay equipment according to the node identification of the first host node.

The MT of the relay device, upon receiving the eighth message, transmits the contents of the eighth message to the DU of the relay device so that the DU of the relay device obtains the second CGI and replaces the first CGI with the second CGI.

It should be noted that, the first CGI, the second CGI and the CGI used by the first host node are all different, so as to avoid CGI collision and ensure that the CGI has global uniqueness.

In the embodiment shown in fig. 5D, the relay device sends the information of the first home node to the second home node, so that the second home node configures the second CGI for the second cell of the relay device, thereby helping to improve the stability of communication.

Fig. 5E is a schematic flow chart of another method for configuring a flag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

501e, the relay device receives a broadcast message from the first hosting node. Wherein the broadcast message includes the CGI used by the first host node and length information of the node identification of the first host node. The implementation process of step 501e may refer to the specific description of step 501D in fig. 5D, which is not repeated herein.

502e, the relay device sends a seventh message to the second hosting node. Accordingly, the second hosting node receives the seventh message from the relay device. Wherein the seventh message includes information of the first home node and configuration information of the X cells. Optionally, the seventh message further includes indication information for indicating CGI configuring the X cells.

The information of the first host node may refer to the specific description of the information of the first host node in fig. 5D, which is not described herein. The configuration information of the X cells may be referred to in the embodiment shown in fig. 4A, and will not be described herein.

503e, the second hosting node sends an eighth message to the relay device. Accordingly, the relay device receives the eighth message from the second hosting node. Wherein the eighth message includes CGIs of the X cells.

In one possible implementation, the information of the first host node includes a node identifier of the first host node, and the second host node configures CGI for X cells of the relay device according to the node identifier of the first host node.

In another possible implementation manner, the information of the first host node includes a CGI used by the first host node and length information of a node identifier of the first host node, and further, the second host node determines the node identifier of the first host node according to the CGI used by the first host node and the length information of the node identifier of the first host node; and configuring CGI for X cells of the relay equipment according to the node identification of the first host node.

The content included in the eighth message is the same as the content included in the second message in the embodiment shown in fig. 4A, and the detailed description of the second message in the embodiment shown in fig. 4A may be specifically referred to, which is not repeated here.

In the case that the MT of the relay device receives the eighth message, the MT transmits the content in the eighth message to the DU of the relay device so that the DU of the relay device obtains CGIs of X cells.

It should be noted that, the CGIs of the X cells are different from the CGIs used by the first host node, so as to avoid the CGI collision, and ensure that the CGIs have global uniqueness.

In the embodiment shown in fig. 5E, the relay device sends the information of the first home node to the second home node, so that the second home node configures CGI for X cells of the relay device, thereby helping to improve stability of communication.

The third part, the relay device configures CGI.

Fig. 6 is a schematic flow chart of another method for configuring a flag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

601, the iab node MT receives a broadcast message from a first host node. Wherein the broadcast message includes the CGI used by the first host node and length information of the node identification of the first host node. The implementation process of step 601 may refer to the specific description of step 501D in fig. 5D, which is not repeated herein.

602, the iab node MT determines the node identification of the first host node according to the CGI used by the first host node and the length information of the node identification of the first host node.

The process of determining the node identifier of the first host node by the IAB node MT according to the CGI used by the first host node and the length information of the node identifier of the first host node may refer to the DU of the relay device in the embodiment shown in fig. 4 to determine the specific description of the node identifier of the first host node according to the CGI and the length information of the node identifier of the first host node, which is not described herein.

603, the IAB node MT sends the node identification of the first host node to the IAB node DU. Accordingly, the IAB node DU receives the node identification of the first host node from the IAB node MT.

The iab node DU configures 604 the second CGI according to the node identity of the first host node.

The process of configuring the second CGI by the IAB node DU according to the node identifier of the first host node may refer to the specific description of configuring the second CGI by the first host node or the second host node according to the node identifier of the first host node in the foregoing embodiment, which is not described herein.

The IAB node DU replaces the first CGI with the second CGI after configuring the second CGI, so as to improve traffic communication stability between the relay device and the UE connected thereto. Wherein the first CGI is a CGI of a first cell of the relay device.

In the embodiment shown in fig. 6, the IAB node MT sends the determined node identifier of the first host node to the IAB node DU, and the IAB node DU configures the second CGI for the second cell, thereby helping to improve the stability of communication.

Fig. 6A is a schematic flow chart of another method for configuring a flag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

601a, iab node MT receives a broadcast message from a first host node. Wherein the broadcast message includes the CGI used by the first host node and length information of the node identification of the first host node. The implementation process of step 601a may refer to the specific description of step 501D in fig. 5D, which is not repeated herein.

602a, the IAB node MT transmits to the IAB node DU the CGI used by the first host node and length information of the node identification of the first host node. Accordingly, the IAB node DU receives the CGI used by the first host node and the length information of the node identification of the first host node from the IAB node MT.

603a, the iab node DU determines the node identification of the first host node according to the CGI used by the first host node and the length information of the node identification of the first host node.

The process of determining the node identifier of the first host node according to the CGI used by the first host node and the length information of the node identifier of the first host node by using the IAB node DU may refer to the DU of the relay device in the embodiment shown in fig. 4 to determine the specific description of the node identifier of the first host node according to the CGI and the length information of the node identifier of the first host node, which is not described herein.

604a, the iab node DU configures the second CGI according to the node identification of the first host node.

In the embodiment shown in fig. 6A, the IAB node DU determines the node identifier of the first host node, and configures the second CGI for the second cell, thereby helping to improve the stability of communication.

And a fourth section for configuring the CGI based on the core network architecture.

The core network architecture includes an AMF network element, where the AMF may configure the CGI, or assist the host node in configuring the CGI.

Fig. 7 is a flowchart of another method for configuring a tag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

701, the first home node sends a node identification of the first home node to the AMF network element. Accordingly, the AMF network element receives the node identification from the first home node.

Optionally, the first home node sends a node identifier of the first home node to the AMF when the NG interface is established.

Optionally, the first host node further sends a CGI used by the first host node to the AMF network element.

The second home node sends 702 a ninth message to the AMF network element. Accordingly, the AMF network element receives a ninth message from the second home node. Wherein the ninth message includes configuration information of the X cells. Optionally, the ninth message further includes indication information for indicating CGI configuring the X cells.

The CU of the second hosting node may send a ninth message to the AMF network element if it is determined to trigger the relay device to switch the hosting node. The DU of the relay device may send the configuration information of the X cells to the second home node, and the detailed description of this procedure in the embodiment shown in fig. 5A may be referred to, which is not repeated herein. The configuration information of the X cells may refer to a specific description of the configuration information of the X cells in the embodiment shown in fig. 4A, which is not described herein.

Alternatively, the ninth message may be NG signaling, which may be mobility signaling (handover request signaling or other signaling).

Optionally, the ninth message may further include a CGI used by the first host node, so that the AMF network element may ensure that the CGI has global uniqueness when configuring the CGI.

703, the amf network element configures CGIs of the X cells according to the node identification of the first home node and the configuration information of the X cells. Step 703 may refer to the process of configuring CGIs of X cells by the first host node or the second host node according to the node identifier of the first host node and the configuration information of the X cells in the foregoing embodiment, which is not described herein.

The amf network element sends 704 a tenth message to the first home node. Accordingly, the first host node receives a tenth message from the AMF network element. Wherein the tenth message includes CGIs of X cells. Alternatively, the AMF network element may send the tenth message to the first home node via the NG interface.

705, the first hosting node sends an eleventh message to the relay device. Accordingly, the relay device receives an eleventh message from the first hosting node. Wherein the eleventh message includes CGIs of the X cells.

Steps 704 and 705 are feedback of CGIs of X cells to the relay device by the AMF network element through the first home node. In the embodiment shown in fig. 7, the AMF network element configures CGIs for a plurality of cells of the relay device, and sends the CGIs to the first home node, and the first home node informs the relay device of the CGIs, so as to help to improve communication stability. The same or similar parts of the embodiment shown in fig. 7 as those of the previous embodiment may be referred to for the detailed description of the previous embodiment, and will not be repeated here. For example, for the case where the ninth message includes configuration information of X1 cells, the tenth message and the eleventh message include CGIs of X2 cells, reference may be made to the case where the first message includes configuration information of X1 cells and the second message includes CGIs of X2 cells in the foregoing embodiments.

As an optional embodiment, the ninth message includes first cell identification information, and the tenth message and the eleventh message include the first cell identification information and the second CGI, so as to implement that the AMF network element configures the second CGI for the second cell of the relay device, and sends the second CGI to the first host node, and the first host node informs the relay device of the second cell. If the ninth message includes the identification information of the plurality of cells, the ninth message may further include an indication information, where the indication information is used to indicate which cells are fed back to the correspondence between the identification information of the new CGI.

Fig. 7A is a schematic flow chart of another method for configuring a tag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

701a, the first home node sends a node identification of the first home node to the AMF network element. Accordingly, the AMF network element receives the node identification from the first home node.

702a, the second home node sends a twelfth message to the AMF network element. Accordingly, the AMF network element receives the twelfth message from the second home node. Wherein the twelfth message includes configuration information of the X cells. Optionally, the twelfth message includes indication information for indicating CGI configuring the X cells.

The CU of the second hosting node may send a twelfth message to the AMF network element if it is determined to trigger the relay device to switch the hosting node. The DU of the relay device may send the configuration information of the X cells to the second home node, and the detailed description of this procedure in the embodiment shown in fig. 5A may be referred to, which is not repeated herein. The configuration information of the X cells may refer to a specific description of the configuration information of the X cells in the embodiment shown in fig. 4A, which is not described herein.

Alternatively, the twelfth message may be NG signaling, which may be mobility signaling (handover request signaling or other signaling).

Optionally, the twelfth message may further include the CGI used by the first host node, so that the AMF network element may ensure that the CGI has global uniqueness when configuring the CGI.

703a, the amf network element configures CGIs of the X cells according to the node identification of the first home node and the configuration information of the X cells. Step 703a may refer to the process of configuring CGIs of X cells by the first host node or the second host node according to the node identifier of the first host node and the configuration information of the X cells in the foregoing embodiment, which is not described herein.

The amf network element sends 704a thirteenth message to the second home node. Accordingly, the first host node receives a thirteenth message from the AMF network element. Wherein the thirteenth message includes CGIs of X cells.

705a, the second hosting node sends a fourteenth message to the relay device. Accordingly, the relay device receives a fourteenth message from the second hosting node. Wherein the fourteenth message includes CGIs of the X cells.

Step 704a and step 705a are feedback of CGIs of the X cells to the relay device by the AMF network element through the second home node.

In the embodiment shown in fig. 7A, the AMF network element configures CGIs for a plurality of cells of the relay device, and sends the CGIs to the second home node, and the second home node informs the relay device of the CGIs, so as to help to improve communication stability. The same or similar parts of the embodiment shown in fig. 7A as those of the previous embodiment may be referred to for the detailed description of the previous embodiment, and will not be repeated here. For example, for the case where the twelfth message includes configuration information of X1 cells, the thirteenth message and the fourteenth message include CGIs of X2 cells, reference may be made to the case where the first message includes configuration information of X1 cells and the second message includes CGIs of X2 cells in the foregoing embodiments.

As an optional embodiment, the twelfth message includes first cell identification information, and the thirteenth message and the fourteenth message include the first cell identification information and the second CGI, so as to implement that the AMF network element configures the second CGI for the second cell of the relay device, and sends the second CGI to the second host node, and the second host node informs the relay device of the second CGI. If the twelfth message includes the identification information of the plurality of cells, the twelfth message may further include an indication information for indicating which cells are fed back with the correspondence relationship between the identification information and the new CGI.

Fig. 7B is a flowchart of another method for configuring a flag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

701b, the first home node sends a node identification of the first home node to the AMF network element. Accordingly, the AMF network element receives the node identification from the first home node.

702, the amf network element sends a fifteenth message to the second home node. Accordingly, the second home node receives a fifteenth message from the AMF network element. Wherein the fifteenth message includes a node identification of the first home node. Optionally, the fifteenth message may further include a CGI used by the first host node to ensure that the configured CGI has global uniqueness.

703b, the second host node configures CGIs of the X cells according to the node identification of the first host node and the configuration information of the X cells. Step 703b may refer to the procedure of configuring CGIs of X cells by the second home node according to the node identifier of the first home node in the foregoing embodiment, which is not described herein.

The DU of the relay device may send the configuration information of the X cells to the second home node, and the detailed description of this procedure in the embodiment shown in fig. 5A may be referred to, which is not repeated herein. Optionally, the DU of the relay device may further send indication information to the second host node, for indicating CGI configuring the X cells.

704b, the second hosting node sends a sixteenth message to the relay device. Accordingly, the relay device receives the sixteenth message from the second hosting node. Wherein the sixteenth message includes CGIs of X cells.

In the embodiment shown in fig. 7B, the AMF network element informs the second host node of the node identifier of the first host node, and the second host node configures CGIs of a plurality of cells, which is helpful for improving communication stability. The same or similar parts of the embodiment shown in fig. 7B as those of the previous embodiment may be referred to for the detailed description of the previous embodiment, and will not be repeated here. For example, for the case where the fifteenth message includes the configuration information of X1 cells, the sixteenth message includes the CGI of X2 cells, reference may be made to the case where the first message includes the configuration information of X1 cells and the second message includes the CGI of X2 cells in the foregoing embodiments.

As an alternative embodiment, step 703b may further be that the second host node configures a second CGI for the second cell according to the node identification of the first host node, so that the sixteenth message may include the first cell identification information and the second CGI.

The fifth part configures the CGI based on an open-radio access network (open-radio access network, O-RAN) architecture.

Fig. 8 is a schematic diagram of an IAB system based on an O-RAN architecture. The IAB system architecture shown in fig. 8 includes an O-RAN intelligent controller (O-RAN intelligent controller, O-RIC), an IAB node MT, an IAB node DU, and an IAB node CU. The O-RIC is used for collecting network information and executing necessary optimization tasks, and is communicated with the IAB donor CU and the IAB node DU through an E2 interface. I.e. the O-RIC may control the IAB node DU directly or through an IAB node CU.

Fig. 9 is a schematic flow chart of another method for configuring a flag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

901, the first host node sends a node identification of the first host node and a CGI used by the first host node to an intelligent control device (e.g., O-RIC). Accordingly, the intelligent control device receives the node identification from the first host node and the CGI used by the first host node.

Optionally, the first host node sends the node identifier of the first host node and the CGI used by the first host node to the intelligent control device through the E2 interface.

The second home node sends 902 a seventeenth message to the intelligent control device. Accordingly, the intelligent control device receives a seventeenth message from the second hosting node. Wherein the seventeenth message includes configuration information of the X cells. Optionally, the seventeenth message further includes indication information for indicating CGI configuring the X cells.

The CU of the second hosting node may send a seventeenth message to the intelligent control device if it is determined to trigger the relay device to switch the hosting node. Optionally, the second host node sends a seventeenth message to the intelligent control device through the E2 interface.

Optionally, step 902 may also be that the DU of the relay device sends a seventeenth message to the intelligent control device. The DU of the relay device transmits a seventeenth message to the intelligent control device through the E2 interface.

903, the intelligent control device configures CGIs of the X cells according to the node identifier of the first home node and configuration information of the X cells. Step 903 may refer to the process of configuring CGIs of X cells by the first host node or the second host node according to the node identifier of the first host node and the configuration information of the X cells in the foregoing embodiment, which is not described herein.

The intelligent control device sends 904 an eighteenth message to the first home node. Accordingly, the first host node receives an eighteenth message from the AMF network element. Wherein the eighteenth message includes CGIs of X cells.

905, the first home node transmits a nineteenth message to the relay device. Accordingly, the relay device receives the nineteenth message from the first hosting node. Wherein the nineteenth message includes CGIs of X cells.

Step 904 and step 905 are steps that the intelligent control device feeds back CGIs of X cells to the relay device through the first home node.

In the embodiment shown in fig. 9, the intelligent control device configures CGIs for a plurality of cells of the relay device, and sends the CGIs to the first home node, and the first home node informs the relay device of the CGIs, so that the communication stability is improved. The same or similar parts of the embodiment shown in fig. 9 as those of the previous embodiment may be referred to for the detailed description of the previous embodiment, and will not be repeated here. For example, for the case where the seventeenth message includes configuration information of X1 cells, the eighteenth message and the nineteenth message include CGIs of X2 cells, reference may be made to the case where the first message includes configuration information of X1 cells and the second message includes CGIs of X2 cells in the foregoing embodiments.

As an optional embodiment, the seventeenth message includes first cell identification information, and the eighteenth message and the nineteenth message include the first cell identification information and the second CGI, so that the intelligent control device configures the second CGI for the second cell of the relay device, and sends the second CGI to the first host node, and the first host node informs the relay device of the second cell. If the seventeenth message includes the identification information of the plurality of cells, the seventeenth message may further include an indication information for indicating which cells are fed back with the correspondence relationship between the identification information and the new CGI.

Fig. 9A is a schematic flow chart of another method for configuring a tag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

901a, the first host node sends a node identification of the first host node and a CGI used by the first host node to an intelligent control device (e.g., O-RIC). Accordingly, the intelligent control device receives the node identification from the first host node and the CGI used by the first host node.

902a, the second home node sends a twentieth message to the intelligent control device. Accordingly, the intelligent control device receives a twentieth message from the second host node. Wherein the twentieth message includes configuration information of the X cells. Optionally, the twentieth message further includes indication information for indicating CGI configuring the X cells.

The CU of the second hosting node may send a twentieth message to the intelligent control device if it is determined to trigger the relay device to switch the hosting node. Optionally, the second host node sends a twentieth message to the intelligent control device through the E2 interface.

Optionally, step 902a may also be that the DU of the relay device sends a twentieth message to the intelligent control device. The DU of the relay device transmits a nineteenth message to the intelligent control device through the E2 interface.

903a, the intelligent control device configures CGIs of the X cells according to the node identifier of the first home node and the configuration information of the X cells. Step 903a may refer to the process of configuring CGIs of X cells by the first host node or the second host node according to the node identifier of the first host node and the configuration information of the X cells in the foregoing embodiment, which is not described herein.

904a, the intelligent control device sends a twenty-first message to the second hosting node. Accordingly, the first host node receives a twenty-first message from the AMF network element. Wherein the twenty-first message includes CGIs of X cells.

905a, the second hosting node sends a twenty-second message to the relay device. Accordingly, the relay device receives a twenty-second message from the second hosting node. Wherein the twenty-second message comprises CGIs of X cells.

Step 904a and step 905a are feedback of CGIs of X cells to the relay device by the intelligent control device through the second home node.

In the embodiment shown in fig. 9A, the intelligent control device configures CGIs for a plurality of cells of the relay device, and sends the CGIs to the second home node, and the second home node informs the relay device of the CGIs, so that the communication stability is improved. The same or similar parts of the embodiment shown in fig. 9A as those of the previous embodiment may be referred to for the detailed description of the previous embodiment, and will not be repeated here. For example, for the case where the twentieth message includes configuration information of X1 cells, the twenty-first message and the twenty-second message include CGIs of X2 cells, reference may be made to the case where the first message includes configuration information of X1 cells and the second message includes CGIs of X2 cells in the foregoing embodiments.

As an optional embodiment, the twentieth message includes first cell identification information, and the twenty-first message and the twenty-second message include the first cell identification information and the second CGI, so that the intelligent control device configures the second CGI for the second cell of the relay device, and sends the second CGI to the second host node, and the second host node informs the relay device of the second CGI. If the twentieth message includes the identification information of a plurality of cells, the twentieth message may further include an indication information, where the indication information is used to indicate which cells are fed back to the correspondence between the identification information and the new CGI.

Fig. 9B is a flowchart of another method for configuring a flag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

901b, the first host node sends the node identification of the first host node and the CGI used by the first host node to the intelligent control device. Accordingly, the intelligent control device receives the node identification from the first host node and the CGI used by the first host node.

902b, the intelligent control device sends a twenty-third message to the second home node. Accordingly, the second host node receives a twenty-third message from the intelligent control device. Wherein the twenty-third message includes the node identification of the first host node and the CGI used by the first host node.

903b, the second host node configures CGIs of the X cells according to the node identifier of the first host node, the CGIs used by the first host node, and the configuration information of the X cells. Step 903b may refer to the process of configuring CGIs of X cells by the second host node according to the node identifier of the first host node and the configuration information of the X cells in the foregoing embodiment, which is not described herein.

The DU of the relay device may send the configuration information of the X cells to the second home node, and the detailed description of this procedure in the embodiment shown in fig. 5A may be referred to, which is not repeated herein. Optionally, the DU of the relay device may further send indication information to the second home node, where the indication information is used to indicate CGI configuring the X cells.

904b, the second hosting node sends a twenty-fourth message to the relay device. Accordingly, the relay device receives a twenty-fourth message from the second hosting node. Wherein the twenty-fourth message includes CGIs of X cells.

In the embodiment shown in fig. 9B, the intelligent control device informs the second host node of the node identifier of the first host node and the CGI used by the first host node, and the second host node configures the CGIs of the plurality of cells, which is helpful for improving the communication stability. The same or similar parts of the embodiment shown in fig. 9B as those of the previous embodiment may be referred to for the detailed description of the previous embodiment, and will not be repeated here. For example, for the case where the twenty-third message includes configuration information of X1 cells, the twenty-fourth message includes CGI of X2 cells, reference may be made to the case where the first message includes configuration information of X1 cells and the second message includes CGI of X2 cells in the foregoing embodiments.

As an alternative embodiment, step 903b may further be that the second host node configures a second CGI for the second cell according to the node identification of the first host node, so that the twenty-fourth message may include the first cell identification information and the second CGI.

Fig. 9C is a schematic flow chart of another method for configuring a tag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

901c, the first host node sends the node identification of the first host node and the CGI used by the first host node to the intelligent control device. Accordingly, the intelligent control device receives the node identification from the first host node and the CGI used by the first host node.

902c, the second host node sends a twenty-fifth message to the intelligent control device. Accordingly, the intelligent control device receives a twenty-fifth message from the second hosting node. Wherein the twenty-fifth message includes configuration information of the X cells. Optionally, the twenty-fifth message further includes indication information for indicating that CGIs of the X cells are configured.

The CU of the second hosting node may send a twenty-fifth message to the intelligent control device if it is determined to trigger the relay device to switch the hosting node. Optionally, the second host node sends a twenty-fifth message to the intelligent control device through the E2 interface.

Optionally, step 902c may also be that the DU of the relay device sends a twenty-fifth message to the intelligent control device. The DU of the relay device transmits a twenty-fifth message to the intelligent control device through the E2 interface.

903c, the intelligent control device configures CGIs of the X cells according to the node identifier of the first home node and the configuration information of the X cells. Step 903c may refer to the process of configuring CGIs of X cells by the first host node or the second host node according to the node identifier of the first host node and the configuration information of the X cells in the foregoing embodiment, which is not described herein.

904c, the intelligent control device sends a twenty-sixth message to the relay device. Accordingly, the relay device receives the twenty-sixth message from the intelligent control device. Wherein the twenty-sixth message includes CGIs of X cells.

In the embodiment shown in fig. 9C, the intelligent control device configures CGIs for a plurality of cells of the relay device, and sends the CGIs to the relay device, which helps to improve the communication stability. The same or similar parts of the embodiment shown in fig. 9C as those of the previous embodiment may be referred to for the detailed description of the previous embodiment, and will not be repeated here. For example, for the case where the twenty-fifth message includes the configuration information of X1 cells, the twenty-sixth message includes the CGI of X2 cells, reference may be made to the case where the first message includes the configuration information of X1 cells and the second message includes the CGI of X2 cells in the foregoing embodiments.

As an optional embodiment, the twenty-fifth message includes the first cell identification information, and the twenty-sixth message includes the first cell identification information and the second CGI, so that the intelligent control device configures the second CGI for the second cell of the relay device, and sends the second CGI to the relay device. If the twenty-fifth message includes the identification information of a plurality of cells, the twenty-fifth message may further include an indication information, where the indication information is used to indicate which cells' correspondence between the identification information and the new CGI are fed back.

Fig. 9D is a schematic flow chart of another method for configuring a tag according to an embodiment of the present application. The method may include, but is not limited to, the steps of:

901d, the first host node sends the node identification of the first host node and the CGI used by the first host node to the intelligent control device. Accordingly, the intelligent control device receives the node identification from the first host node and the CGI used by the first host node.

902d, the intelligent control device sends a twenty-seventh message to the relay device. Accordingly, the relay device receives the twenty-seventh message from the intelligent control device. Wherein the twenty-seventh message includes the node identification of the first host node and the CGI used by the first host node.

Optionally, the intelligent control device sends a twenty-seventh message to the DU of the relay device through the E2 interface.

903d, the relay device configures CGIs of the X cells according to the node identifier of the first home node and the CGIs used by the first home node. Step 903b may refer to the process of configuring CGIs of X cells by the second home node or the relay device according to the node identifier of the first home node in the foregoing embodiment, which is not described herein.

In the embodiment shown in fig. 9D, the intelligent control device informs the relay device according to the obtained node identifier of the first host node and the CGI used by the first host node, and the relay device configures the CGIs of the X cells, so as to help to improve the communication stability. The same or similar parts of the embodiment shown in fig. 9D as those of the previous embodiment may be referred to for the detailed description of the previous embodiment, and will not be repeated here.

Corresponding to the method provided by the above method embodiment, the embodiment of the present application further provides a corresponding apparatus, including a module for executing the corresponding module of the above embodiment. The modules may be software, hardware, or a combination of software and hardware.

Fig. 10 shows a schematic structure of a communication device. The communication device 1000 may be a relay device, a host node, a chip system, a processor, or the like that supports the relay device to implement the above method, or a chip, a chip system, a processor, or the like that supports the host node to implement the above method. The host node may be a first host node or a second host node. The device can be used for realizing the method described in the method embodiment, and can be particularly referred to the description in the method embodiment.

The communication device 1000 may comprise one or more processors 1001, which processors 1001 may also be referred to as processing units or processing modules, etc., may implement certain control functions. The processor 1001 may be a general purpose processor or a special purpose processor, or the like. The general purpose processor may be, for example, a central processor and the special purpose processor may be, for example, a baseband processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, MT, DU, CU, etc.), execute software programs, and process data of the software programs.

In an alternative design, the processor 1001 may also have instructions 1003 stored thereon, where the instructions 1003 may be executed by the processor 1001 to cause the communications device 1000 to perform the method described in the method embodiments above.

In another alternative design, the processor 1001 may include a transceiver unit for implementing the receive and transmit functions. For example, the transceiver unit may be a transceiver circuit or an interface. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit or interface may be used for reading and writing instructions, or the transceiver circuit or interface may be used for transmitting signals.

Optionally, the communication device 1000 may include one or more memories 1002, on which instructions 1004 may be stored, the instructions 1004 being executable on the processor 1001 to cause the communication device 1000 to perform the method described in the method embodiments above. Optionally, the memory 1002 may also have data stored therein. Optionally, instructions and/or data may also be stored in the processor 1001. The processor 1001 and the memory 1002 may be provided separately or may be integrated. For example, the correspondence described in the above method embodiment may be stored in the memory 1002 or in the processor 1001.

Optionally, the communication device 1000 may also include a transceiver 1005 and/or an antenna 1006. The transceiver 1005 may be referred to as a transceiver unit, a transceiver circuit, a transceiver device, a transceiver module, or the like, for implementing a transceiver function.

Optionally, in the embodiment of the present application, when the communication apparatus 1000 is a relay device, various functional modules may be included to execute steps executed by the relay device or the IAB node in the embodiment of the method.

Optionally, in the embodiment of the present application, when the communication apparatus 1000 is the first host node, various functional modules may be included to execute steps executed by the first host node or target IAB donor CU in the method embodiment.

Optionally, in the embodiment of the present application, when the communication apparatus 1000 is the second host node, various functional modules may be included to execute steps executed by the second host node or source IAB donor CU in the embodiment of the method.

The processor and transceiver described in this application may be implemented on an integrated circuit (integrated circuit, IC). The IC may include an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (application specific integrated circuit, ASIC), or the like. Printed circuits on a printed circuit board (printed circuit board, PCB) may implement the IC.

As shown in fig. 11, yet another embodiment of the present application provides a communication device 1100. The apparatus may be a host node or may be a component of a host node (e.g., an integrated circuit, chip, etc.). Alternatively, the apparatus may be a relay device, or may be a component (e.g., an integrated circuit, a chip, etc.) of a relay device. The device may also be other communication modules, for implementing the method in the method embodiment of the present application. The communication device 1100 may include: the processing unit 1101 (or referred to as a processing module). Optionally, a communication unit 1102 (alternatively referred to as a transceiver unit, a receiving unit and/or a transmitting unit) may also be included. Alternatively, a memory unit (or referred to as a memory module) may also be included.

In one possible design, one or more of the elements of FIG. 11 may be implemented by one or more processors, or by one or more processors and memory; or by one or more processors and transceivers; or by one or more processors, memories, and transceivers, to which embodiments of the present application are not limited. The processor, the memory and the transceiver can be arranged separately or integrated.

Alternatively, each module in the communication device 1100 in the embodiment of the present application may be used to perform the method described in the method embodiment.

It can be understood that some optional features in the embodiments of the present application may be implemented independently in some scenarios, independent of other features, such as the scheme on which they are currently based, so as to solve corresponding technical problems, achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the apparatus provided in the embodiments of the present application may also implement these features or functions accordingly, which is not described herein.

Those of skill would further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (steps) described in connection with the embodiments herein may be implemented as electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the described functionality using a variety of methods for their respective applications, but such implementation should not be construed as beyond the scope of the embodiments of the present application.

It will be appreciated that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or 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) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It is appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, various embodiments are not necessarily referring to the same embodiments throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application.

The correspondence relationship shown in each table in the present application may be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, which are not limited in this application. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table in the present application, the correspondence shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

Predefined in this application may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-firing.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

Those skilled in the art will understand that, for convenience and brevity, the specific working process of the system, apparatus and unit described above may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

It will be appreciated that the systems, apparatus, and methods described herein may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The same or similar parts between the various embodiments in this application may be referred to each other. In the various embodiments and the various implementation/implementation methods in the various embodiments in this application, if no special description and logic conflict exist, terms and/or descriptions between different embodiments and between the various implementation/implementation methods in the various embodiments may be consistent and may be mutually referred to, technical features in the different embodiments and the various implementation/implementation methods in the various embodiments may be combined to form new embodiments, implementations, implementation methods, or implementation methods according to their inherent logic relationships. The above-described embodiments of the present application are not intended to limit the scope of the present application.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application.

Claims

1. A method of configuring a logo, comprising:

the relay device sends a first message to a first host node, wherein the first message comprises first cell identification information; the first cell identification information is identification information of a first cell of the relay equipment;

the relay device receives a second message from the first host node, wherein the second message comprises the first cell identification information and a second cell global identification CGI; wherein, the first cell identification information and the second CGI have a corresponding relation; the second CGI is a CGI of a second cell of the relay device.

2. The method according to claim 1, wherein the method further comprises:

and the relay equipment replaces the first CGI with the second CGI according to the corresponding relation, wherein the first CGI is the CGI of the first cell.

3. The method of claim 2, wherein a node identification corresponding to the second CGI is different from a node identification corresponding to the first CGI.

4. A method according to claim 3, wherein the node identity corresponding to the second CGI is used to identify the first host node, and the node identity corresponding to the first CGI is used to identify a second host node; the connection of the relay device with the home node is switched from the second home node to the first home node.

5. The method of claim 3, wherein the first message further comprises a node identification corresponding to the first CGI or length information of a node identification corresponding to the first CGI.

6. The method of claim 5, further comprising at least one of:

the relay equipment acquires the length information of the node identifier corresponding to the first CGI from the broadcast message of the second host node;

the relay equipment acquires the length information of the node identifier corresponding to the first CGI from the broadcast message of the second host node, and determines the node identifier corresponding to the first CGI according to the length information of the node identifier corresponding to the first CGI;

The relay device obtains the node identifier corresponding to the first CGI or the length information of the node identifier corresponding to the first CGI from the operation management maintenance device.

7. The method of claim 1, wherein the first message further comprises indication information indicating that the second CGI is configured.

8. A method of configuring a logo, comprising:

the method comprises the steps that a first host node receives a first message from a relay device, wherein the first message comprises first cell identification information; the first cell identification information is identification information of a first cell of the relay equipment;

the first host node sends a second message to the relay device, wherein the second message comprises the first cell identification information and a second CGI; wherein, the first cell identification information and the second CGI have a corresponding relation; the second CGI is a CGI of a second cell of the relay device.

9. The method of claim 8, wherein the node identification corresponding to the second CGI is different from the node identification corresponding to a first CGI, the first CGI being a CGI of the first cell.

10. The method of claim 9, wherein a node identification corresponding to the second CGI is used to identify the first host node, and wherein a node identification corresponding to the first CGI is used to identify a second host node; the connection of the relay device with the home node is switched from the second home node to the first home node.

11. The method according to claim 9, wherein the method further comprises:

the first host node configures the second CGI.

12. The method of claim 9, wherein the first message further comprises a node identification corresponding to the first CGI or length information of a node identification corresponding to the first CGI.

13. The method of claim 8, wherein the first message further comprises indication information; the method further comprises the steps of:

the first host node configures the second CGI according to the indication information.

14. A method of configuring a logo, comprising:

the relay equipment sends a third message to a second host node, wherein the third message comprises first cell identification information, and the first cell identification information is identification information of a first cell of the relay equipment;

the relay device receiving a fourth message from the second home node, the fourth message comprising the first cell identification information and a second CGI; wherein, the first cell identification information and the second CGI have a corresponding relation; the second CGI is a CGI of a second cell of the relay device.

15. The method of claim 14, wherein the method further comprises:

16. The method of claim 14, wherein the relay device comprises a mobile terminal and a distributed unit;

the relay device sending a third message to a second hosting node, comprising:

the mobile terminal of the relay device sends a third message to the second host node;

the relay device receiving a fourth message from the second hosting node, comprising:

the mobile terminal of the relay device receives a fourth message from the second hosting node and sends the fourth message to the distributed units of the relay device.

17. The method of any of claims 14 to 16, wherein the third message further comprises indication information indicating that the second CGI is configured.

18. A method of configuring a logo, comprising:

the second host node receives a third message from the relay device, wherein the third message comprises first cell identification information, and the first cell identification information is identification information of a first cell of the relay device;

The second host node sends a fourth message to the relay device, wherein the fourth message comprises the first cell identification information and a second CGI; wherein, the first cell identification information and the second CGI have a corresponding relation; the second CGI is a CGI of a second cell of the relay device.

19. The method of claim 18, wherein the third message further comprises indication information indicating that the second CGI is configured.

20. The method according to claim 18 or 19, characterized in that the method further comprises:

the second host node sends a fifth message to the first host node, wherein the content included in the fifth message is the same as the content included in the third message;

the second host node receives a sixth message from the first host node, the sixth message including the same content as the fourth message.

21. The method according to claim 18 or 19, characterized in that the method further comprises:

the second host node obtains the CGI used by the first host node and the node identification of the first host node from the first host node; the first host node uses a CGI different from the second CGI; the node identification of the first host node is used for configuring the second CGI; the connection of the relay device with the home node is switched from the second home node to the first home node.

22. A communication device, comprising a processing module and a transceiver module; the processing module and the transceiver module for the communication device to implement the method of any one of claims 1-7, or to implement the method of any one of claims 8-13, or to implement the method of any one of claims 14-17, or to implement the method of any one of claims 18-21.

23. A communication device, the communication device comprising: a processor coupled with a memory for storing a program or instructions that, when executed by the processor, cause the communication device to perform the method of any one of claims 1-7, or the method of any one of claims 8-13, or the method of any one of claims 14-17.

24. A computer readable storage medium having stored thereon a computer program or instructions, which when executed, cause a computer to perform the method of any one of claims 1-7, or the method of any one of claims 8-13, or the method of any one of claims 14-17, or the method of any one of claims 18-21.