WO2020199212A1

WO2020199212A1 - Communication method and apparatus

Info

Publication number: WO2020199212A1
Application number: PCT/CN2019/081568
Authority: WO
Inventors: 王静; 吴毅凌; 李晨琬; 李振宇
Original assignee: 华为技术有限公司
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2020-10-08
Also published as: CN113508556B; CN113508556A; WO2020199429A1

Abstract

The present application provides a communication method and apparatus. The method can be applied to communication systems, such as V2X, LTE-V, V2V, Internet of Vehicles, MTC, loT, LTE-M, M2M, and Internet of Things. In the method, a communication device whose status is a standby communication device can take over the transmission task of a corresponding main communication device at any time to continue the service transmission. In this way, by means of the status change of the main and standby communication devices of the communication device, the communication system can not only ensure the continuity of service transmission, but also avoids the communication device from operating for a long time, so as to prolong the service life of the communication device, thereby further increasing the efficiency of service transmission and improving user experience.

Description

Communication method and device

Technical field

This application relates to the field of communication technology, and in particular to a communication method and device.

Background technique

In the communication system, the terminal device can be directly connected or connected to the network device through at least one relay device to form a wireless connection, so that the terminal device can successfully access the network based on the wireless connection, and finally realize business communication.

In some scenarios, the communication equipment (terminal equipment and/or relay equipment) in the wireless connection is deployed in a fixed location for a long time. In order to ensure the continuity of service transmission, the communication equipment often needs to work continuously for a long time. The service life of the communication equipment is reduced, and in the case of a failure of the communication equipment, the wireless connection will be interrupted, which further improves the efficiency of service transmission.

Summary of the invention

The embodiments of the present application provide a communication method and device to improve the efficiency of service transmission.

In the first aspect, an embodiment of the present application provides a communication method, which is applied to a communication system with dual deployment of communication devices as shown in FIG. 1. Wherein, the first communication device is one of two communication devices that are dually deployed. The method specifically includes the following steps:

The first communication device sends a first state change instruction to the network device, or obtains the first state change instruction from another device, and then the first communication device can change its own state and wireless interface configuration according to the first state change instruction . Wherein, the first state change indication is used to notify: the state of the first communication device is changed from the standby communication device to the main communication device, or from the main communication device to the standby communication device.

Through this method, the communication device whose status is the master communication device can also be changed to the backup communication device to stop performing transmission tasks at any time, and the communication device whose status is the backup communication device can take over the transmission task of the corresponding master communication device at any time and continue to perform service transmission. . In this way, the communication system can ensure the continuity of service transmission by changing the status of the main and standby communication devices of the communication device, and can also prevent the communication device from running for a long time, thereby prolonging the service life of the communication device, and further improving the transmission efficiency. Improve the user experience.

In a possible design, the first communication device may obtain the first state change indication from the network device, the third communication device, or the second communication device. Wherein, the third communication device is the parent node of the first communication device, and the second communication device is the main communication device or backup device corresponding to the first communication device before the state of the first communication device changes. communication device.

It can be known from this design that the network device, the third communication device, or the second communication device in the communication system can all trigger the state change of the communication device. Therefore, this design can make the state change trigger mode of the communication device in the communication system more flexible.

In a possible design, before the first communication device sends the first state change instruction to the network device, the first communication device may determine its current state in the following manner:

Manner 1: The first communication device sends status information to the network device or the third communication device, where the status information is used to notify that the status of the first communication device is the standby communication device or the main communication device.

In this way, the first communication device can initiate state initialization by actively reporting its own state to the network device or the third communication device.

Manner 2: The first communication device receives a status indication sent by the network device or a third communication device, where the status indication is used to indicate that the status of the first communication device is the standby communication device or the main communication device, and The third communication device is the parent node of the first communication device.

In this way, the network device or the third communication device can actively initialize the state of the first communication device by sending a status indication.

Manner 3: The first communication device receives the communication device status configuration information sent by the network device or the third communication device, and in the communication device status configuration information, the status of the first communication device is the standby communication device or the main communication device. A communication device, the third communication device is a parent node of the first communication device.

In this way, the network device or the third communication device can actively initialize the state of the first communication device by sending the communication device state configuration information.

Manner 4: The first communication device receives a second state change instruction sent by the network device or the third communication device, and the second state change instruction is used to notify: the state of the first communication device is controlled by the main communication device Change to a backup communication device, or change from a backup communication device to a master communication device, and the third communication device is the parent node of the first communication device.

In this way, multiple changes to the state of the first communication device can be achieved.

In a possible design, the first communication device may send the status information to the network device in the following manner:

Manner 1: The first communication device sends the identification of the first communication device to the network device, wherein the identification of the first communication device includes an indication field, and the indication field is used to indicate the first communication device. The status of the communication device is the standby communication device or the main communication device.

Manner 2: The first communication device sends instruction information of the second communication device to the network device, where the instruction information of the second communication device is used to indicate the primary communication device or the backup communication device corresponding to the first communication device Is the second communication device.

Manner 3: The first communication device sends a status indication to the network device, where the status indication is used to indicate that the status of the first communication device is a standby communication device or a main communication device.

Manner 4: The first communication device sends the identification and status indication of the first communication device to the network device, where the status indication is used to indicate that the status is the standby communication device or the main communication device, and the first communication device The identifier is used to notify that the state indicated by the state indication is the state of the first communication device.

Manner 5: The first communication device sends a status indication and indication information of a second communication device to the network device, where the status indication is used to indicate that the status of the first communication device is a standby communication device, and the second communication device The instruction information of the communication device is used to indicate that the primary communication device corresponding to the first communication device is the second communication device.

Manner 6: The first communication device sends a status indication and indication information of a second communication device to the network device, where the status indication is used to indicate that the status of the first communication device is the master communication device, and the second communication device The indication information of the communication device is used to indicate that the standby communication device corresponding to the first communication device is the second communication device.

In the above manner, the indication information of the second communication device is any one of the following: the identification of the second communication device, the network identification of the second communication device, the user identification of the second communication device, The access of the second communication device returns the integrated node identification code.

Through this design, the flexibility of the first communication device to send the status information can be improved.

In a possible design, when the state of the first communication device changes to the master communication device, the first communication device obtains the communication configuration information, and then performs wireless interface configuration according to the communication configuration information.

Wherein, the wireless interface includes a wireless interface between the first communication device and a third communication device or a network device, and a wireless interface between the first communication device and a fourth communication device; the fourth communication The device is a child node of the first communication device and the second communication device.

Through this design, the first communication device can replace the second communication device and establish a connection with the child node, parent node or network device of the second communication device, so that it can take over the transmission task of the second communication device and continue the business transmission.

In a possible design, the first communication device may obtain the communication configuration information in the following manner:

Manner 1: The first communication device obtains the communication configuration information from a second communication device, and the second communication device is the master communication device corresponding to the first communication device before the state of the first communication device is changed .

Manner 2: The first communication device receives the communication configuration information from the network device or a third communication device, and the third communication device is a parent node of the first communication device.

Manner 3: The communication configuration information includes a first communication configuration information set and a second communication configuration information set; the first communication device receives the first communication configuration information set from the network device or a third communication device, And the first communication device obtains the second communication configuration information set from the second communication device, and the third communication device is a parent node of the first communication device.

With this design, the first communication device can inherit the communication configuration of the second communication device, thereby avoiding wireless connection recovery failures caused by configuration misalignment, and also preventing the network device from re-disabling the first communication device. The necessary communication configuration can shorten the time when the wireless connection is interrupted.

In a possible design, after the first communication device obtains the communication configuration information from the second communication device, the first communication device sends the complete communication configuration information to the network device or the third communication device An instruction to notify the first communication device to save the complete communication configuration information, and no need to perform communication configuration on the first communication device.

In a possible design, before the first communication device receives the communication configuration information from the network device or the third communication device, the first communication device sends the information to the network device or the third communication device. Send a communication configuration information request. With this design, the first communication device can request the latest communication configuration information from other devices when it does not save the communication configuration information itself, or when the saved communication configuration information is incomplete, or when the saved communication configuration information is not the latest communication configuration information. The complete communication configuration information to successfully establish a wireless connection.

In a possible design, before the first communication device receives the first communication configuration information set from the network device or the third communication device, the first communication device determines to locally save the second When the communication configuration information is set, a communication configuration information request is sent to the network device or a third communication device; wherein the communication configuration information request is used to request the first communication configuration information set, and the communication configuration information request includes The first instruction or the second instruction, the first instruction is used to indicate that the second communication configuration information set has been saved in the first communication device, and the second instruction is used to indicate that the first communication device has not Saving the first communication configuration information set.

Through this design, the first communication device can request another part of the communication configuration information from the network device or the third communication device when saving part of the communication configuration information, avoiding obtaining complete information from the network device or the third communication device Communication configuration information causes unnecessary signaling overhead.

In a possible design, the communication configuration information includes any one or a combination of the following:

Wireless resource configuration information of the second communication device, data buffered when the second communication device performs data transmission, the network identification of the fourth communication device, the context of the fourth communication device, and the quality of service QoS information of the fourth communication device , The data radio bearer ID DRB ID of the fourth communication device, and the radio resource configuration information of the fourth communication device; wherein the second communication device is the first communication device before the state of the first communication device changes. A master communication device corresponding to a communication device, where the fourth communication device is a child node of the first communication device or the second communication device.

In a possible design, the first state change indication includes any one or a combination of the following: the identification of the correspondence between the active and standby communication devices, the identification of the first communication device, the network identification of the first communication device, The status indication of the first communication device, the identification of the second communication device, the network identification of the second communication device, the status indication of the second communication device, and the indication of the reason for the status change; wherein the second communication device is Before the state of the first communication device is changed, it is the main communication device or the backup communication device corresponding to the first communication device.

In the second aspect, an embodiment of the present application also provides a communication method, which is applied to a communication system with dual deployment of communication devices as shown in FIG. 1. Wherein, the first communication device is one of two communication devices that are dually deployed. The method specifically includes the following steps:

The network device obtains the first state change instruction; then, the network device performs wireless interface configuration on the first communication device according to the changed state of the first communication device notified by the first state change instruction. Wherein, the first state change indication is used to notify: the state of the first communication device is changed from the standby communication device to the main communication device, or from the main communication device to the standby communication device.

In a possible design, the network device may obtain the first state change indication from any of the following devices:

The first communication device, the second communication device, the third communication device, the core network device, and the local device.

It can be seen from this design that the network device, the third communication device, the first communication device or the second communication device in the communication system can all trigger the state change of the communication device. Therefore, this design can trigger the state change of the communication device in the communication system. The way is more flexible.

In a possible design, before the network device receives the first state change indication, the network device may determine the current state of the first communication device in the following manner:

Manner 1: The network device receives first state information from the first communication device or the third communication device, and the first state information is used to notify: the state of the first communication device is the standby communication device or the main communication device Device, the third communication device is a parent node of the first communication device.

In this way, the network device initializes the state of the first communication device through the state of the first communication device reported by the first communication device or the third communication device.

Manner 2: The network device receives second status information from a second communication device or a third communication device, and the second status information is used to notify: the status of the second communication device is the master communication device, and the network device According to the preset correspondence between the main and standby communication devices, it is determined that the standby communication device corresponding to the second communication device is the first communication device, and the third communication device is the parent node of the first communication device.

In this way, the network device initializes the state of the first communication device through the state of the second communication device reported by the second communication device or the third communication device.

Manner 3: The network device receives second state information from a second communication device or a third communication device, and the second state information is used to notify: the state of the second communication device is a standby communication device, and the network device According to the preset correspondence between the main and standby communication devices, it is determined that the main communication device corresponding to the second communication device is the first communication device, and the third communication device is the parent node of the first communication device.

Manner 4: The network device sends a status indication to the first communication device or the third communication device according to the communication device status configuration information stored locally or received from the core network device, and the status indication is used to indicate the first communication device or the third communication device. The state of the communication device is the standby communication device or the main communication device, and the third communication device is the parent node of the first communication device.

In this way, the network device can initialize the state of the first communication device according to the state configuration information of the communication device and by sending a state indication.

Manner 5: The network device sends communication device status configuration information to a third communication device, where the status of the first communication device in the communication device status configuration information is the standby communication device or the main communication device, and the first communication device The third communication device is the parent node of the first communication device.

In this way, the network device implements the initialization of the state of the first communication device according to and sending the state configuration information of the communication device.

Manner 6: The network device sends communication device state configuration information to the first communication device, and in the communication device state configuration information, the state of the first communication device is the standby communication device or the main communication device.

In this way, the network device can realize the initialization of the state of the first communication device according to and send the state configuration information of the communication device.

Manner 7: The network device sends a second state change instruction to the first communication device and/or the third communication device; the second state change instruction is used to notify: the state of the first communication device is communicated by the master The device is changed to a standby communication device, or the standby communication device is changed to a master communication device; the third communication device is the parent node of the first communication device.

Manner 8: The network device receives a second state change instruction from a third communication device; the second state change instruction is used to notify: the state of the first communication device is changed from the main communication device to the standby communication device, or The standby communication device is changed to the master communication device; the third communication device is the parent node of the first communication device.

Through manners 7 and 8, multiple changes of the state of the first communication device can be realized.

In a possible design, the network device may receive the first state information from the first communication device in the following manner:

Manner 1: The network device receives the identification of the first communication device from the first communication device, wherein the identification of the first communication device includes an indication field, and the indication field is used to indicate the first communication device. The status of the communication device is the standby communication device or the main communication device.

Manner 2: The network device receives the instruction information of the second communication device from the first communication device, and the instruction information of the second communication device is used to indicate the main communication device or the backup communication device corresponding to the first communication device It is the second communication device.

Manner 3: The network device receives a status indication from the first communication device, where the status indication is used to indicate that the status of the first communication device is a standby communication device or a main communication device.

Manner 4: The network device receives the identification and status indication of the first communication device from the first communication device, and the status indication is used to indicate that the status is a standby communication device or a main communication device, and the first communication device The identifier is used to notify that the state indicated by the state indication is the state of the first communication device.

Manner 5: The network device receives a status indication and indication information of a second communication device from the first communication device, where the status indication is used to indicate that the status of the first communication device is the standby communication device or the main communication device, The indication information of the second communication device is used to indicate that the primary communication device or the backup communication device corresponding to the first communication device is the second communication device.

Mode 6: The network device receives a status indication and indication information of a second communication device from the first communication device, where the status indication is used to indicate that the status of the first communication device is the primary communication device, and the second The indication information of the communication device is used to indicate that the standby communication device corresponding to the first communication device is the second communication device.

In a possible design, after the network device obtains the first status change indication, the network device sends communication device status configuration information to a third communication device, or sends the first status to a third communication device Change instructions,

Through this design, the information received by the third communication device can update the state configuration information of the communication device saved by itself.

In a possible design, when the state of the first communication device changes to the master communication device, the network device can configure the wireless interface of the first communication device in the following manner:

Manner 1: The network device sends communication configuration information to the first communication device.

Manner 2: The network device sends a first configuration instruction to the third communication device, where the first configuration instruction is used to notify the third communication device to send communication configuration information to the first communication device.

Manner 3: The network device sends a second configuration instruction to the third communication device, where the second configuration instruction is used to notify the third communication device to send the first communication configuration information set to the first communication device.

Manner 4: The network device sends the first communication configuration information set to the first communication device.

Wherein, in the third and fourth modes, the communication configuration information includes the first communication configuration information set and the second communication configuration information set.

Through this design, the network device can make the first communication device inherit the communication configuration of the second communication device, thereby avoiding the failure of wireless connection recovery caused by configuration misalignment, and can also prevent the network device from reconnecting to the second communication device. The unnecessary communication configuration of a communication device can shorten the time of wireless connection interruption.

In a possible design, before the network device sends the communication configuration information to the first communication device, the network device receives a communication configuration information request from the first communication device.

With this design, the first communication device can obtain the communication configuration information through an active request.

In a possible design, before the network device sends the first configuration instruction to the third communication device, the network device receives a communication configuration information request from the first communication device.

In a possible design, before the network device sends the second configuration instruction to the third communication device, the network device receives a communication configuration request from the first communication device, where the communication configuration The information request is used to request the first communication configuration information set, the communication configuration information request includes a first indication or a second indication, and the first indication is used to indicate that the first communication device has saved the first communication device. 2. A set of communication configuration information, where the second indication is used to indicate that the first set of communication configuration information is not saved in the first communication device.

Through this design, the first communication device can request the network device to configure another part of the communication configuration information when saving part of the communication configuration information, avoiding unnecessary signaling overhead caused by the configuration of the complete communication configuration information by the network device.

In a possible design, before the network device sends the first communication configuration information set to the first communication device, the network device receives a communication configuration request from the first communication device, wherein the The communication configuration information request is used to request the first communication configuration information set, the communication configuration information request includes a first indication or a second indication, and the first indication is used to indicate that the first communication device has saved all information. The second communication configuration information set, and the second indication is used to indicate that the first communication configuration information set is not saved in the first communication device.

In a possible design, when the network device receives a complete indication of the communication configuration information from the first communication device, the network device does not configure the communication configuration information for the first communication device, and the communication configuration information is complete The indication is used to notify: complete communication configuration information is stored in the first communication device.

With this design, when the first communication device saves complete communication configuration information, it is avoided that the network device configures the communication configuration information for the first communication device again.

In the third aspect, an embodiment of the present application provides a communication method, which is applied to a communication system with dual deployment of communication devices as shown in FIG. 1. Wherein, the first communication device is one of two communication devices that are dually deployed. The method specifically includes the following steps:

The first communication device sends request information to the network device to request to become the master communication device; or

The network device sends a query instruction to the first communication device to notify the first communication device to actively report pairing status information.

With this method, both sides of the network device and the first communication device can synchronize the update of the state of the first communication device and the state of the second communication device that has a pairing relationship with the first communication device.

In a possible design, the request information includes: the access backhaul integrated node identification code of the first communication device and/or the access backhaul integrated node identification code of the second communication device; where There is a pairing relationship between the first communication device and the second communication device.

In a possible design, the pairing status information includes one or more of the following: an identification of a communication device that has a pairing relationship with the first communication device, and a communication device that has a pairing relationship with the first communication device The IAB node identification code of, the C-RNTI of the communication device that has a pairing relationship with the first communication device, and the status indication of the communication device that has a pairing relationship with the first communication device. Wherein, the status indication is used to indicate that the status of the communication device that has a pairing relationship with the first communication device is the standby communication device or the main communication device.

In a fourth aspect, an embodiment of the present application provides a communication device, including a unit for performing each step in the above first aspect or second aspect.

In a fifth aspect, an embodiment of the present application provides a communication device, including at least one processing element and at least one storage element, wherein the at least one storage element is used to store programs and data, and the at least one processing element is used to execute The method provided in one aspect.

In a sixth aspect, an embodiment of the present application provides a network device, including at least one processing element and at least one storage element, wherein the at least one storage element is used to store programs and data, and the at least one processing element is used to execute the first The method provided in the two aspects.

In a seventh aspect, the embodiments of the present application also provide a computer program, which when the computer program runs on a computer, causes the computer to execute the method provided in any of the foregoing aspects.

In an eighth aspect, the embodiments of the present application also provide a computer storage medium in which a computer program is stored. When the computer program is executed by a computer, the computer is caused to execute the method provided in any of the above aspects. .

In a ninth aspect, an embodiment of the present application also provides a chip, which is used to read a computer program stored in a memory and execute the method provided in any one of the foregoing aspects.

In a tenth aspect, an embodiment of the present application also provides a chip system, which includes a processor, and is configured to support a computer device to implement the method provided in any one of the foregoing aspects. In a possible design, the chip system further includes a memory, and the memory is used to store necessary programs and data of the computer device. The chip system can be composed of chips, or can include chips and other discrete devices.

Description of the drawings

FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the application;

FIG. 2 is a flowchart of a communication device accessing a network according to an embodiment of the application;

FIG. 3 is a flowchart of state initialization of the first communication device provided by an embodiment of this application;

FIG. 4 is a flowchart of state initialization of a second communication device provided by an embodiment of this application;

FIG. 5 is a state initialization flowchart of a third communication device provided by an embodiment of this application;

FIG. 6 is a flowchart of state initialization of a fourth communication device provided by an embodiment of this application;

FIG. 7 is a flowchart of state initialization of a fifth communication device provided by an embodiment of this application;

FIG. 8 is a state initialization flowchart of a sixth communication device provided by an embodiment of this application;

FIG. 9 is a flowchart of state initialization of a seventh communication device provided by an embodiment of this application;

FIG. 10 is a flowchart of state initialization of an eighth communication device provided by an embodiment of this application;

FIG. 11 is a flowchart of state initialization of the first communication device provided by an embodiment of this application;

FIG. 12 is a flowchart of the first state change triggering of a communication device provided by an embodiment of this application;

FIG. 13 is a flowchart of the first state change triggering of a communication device provided by an embodiment of this application;

FIG. 14 is a flowchart of a second type of state change triggering of a communication device provided by an embodiment of this application;

FIG. 15 is a flowchart of a third type of state change triggering of a communication device provided by an embodiment of this application;

FIG. 16 is a flowchart of a fourth type of state change triggering of a communication device provided by an embodiment of this application;

FIG. 17 is a flowchart of a fifth type of state change triggering of a communication device provided by an embodiment of this application;

FIG. 18 is a flowchart of the first wireless interface configuration provided by an embodiment of the application;

FIG. 19 is a flowchart of the second configuration of a wireless interface provided by an embodiment of this application;

FIG. 20 is the first flow chart for obtaining communication configuration information according to an embodiment of this application;

FIG. 21 is a second flow chart of obtaining communication configuration information according to an embodiment of this application;

FIG. 22 is a third flow chart of obtaining communication configuration information provided by an embodiment of this application;

FIG. 23 is a fourth flow chart for obtaining communication configuration information according to an embodiment of this application;

FIG. 24 is a fifth flow chart of obtaining communication configuration information provided by an embodiment of this application;

FIG. 25 is a sixth flow chart of obtaining communication configuration information according to an embodiment of this application;

FIG. 26 is a seventh flow chart of obtaining communication configuration information according to an embodiment of this application;

FIG. 27 is a structural diagram of a communication device provided by an embodiment of this application;

FIG. 28 is a structural diagram of a communication device provided by an embodiment of this application;

FIG. 29 is a structural diagram of a network device provided by an embodiment of this application.

detailed description

This application provides a communication method and device to improve the efficiency of service transmission. Among them, the method and the device are based on the same inventive concept. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.

In the solution provided by the embodiment of the present application, the communication device in the standby communication device status can take over the transmission task of the corresponding main communication device at any time and continue to perform service transmission. In this way, the communication system can ensure the continuity of service transmission by changing the status of the main and standby communication devices of the communication device, and can also prevent the communication device from running for a long time, thereby prolonging the service life of the communication device, and further improving the transmission efficiency. Improve the user experience.

Hereinafter, some terms in this application will be explained to facilitate understanding with those skilled in the art.

1) Network equipment is the equipment in the communication system that connects terminal equipment to the wireless network. As a node in a radio access network, the network device may also be referred to as a base station, or may also be referred to as a radio access network (RAN) node (or device).

At present, some examples of network equipment are: gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B) B, NB), access point (access point, AP) base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), or baseband unit (BBU), Enterprise LTE Discrete Spectrum Aggregation (eLTE-DSA) base station, etc.

In addition, in a network structure, the network device may include a centralized unit (CU) node and a distributed unit (DU) node. This structure splits the protocol layer of the eNB in the long-term evolution (LTE) system. Some of the protocol layer functions are placed under the centralized control of the CU, and some or all of the protocol layer functions are distributed in the DU. Centralized control of DU.

2) Terminal equipment is a device that provides users with voice and/or data connectivity. Terminal equipment may also be called user equipment (UE), mobile station (MS), mobile terminal (MT), and so on.

For example, the terminal device may be a handheld device with a wireless connection function, a vehicle-mounted device, etc. At present, some examples of terminal equipment are: mobile phones (mobile phones), tablet computers, notebook computers, handheld computers, mobile internet devices (MID), smart point of sale (POS), wearable devices, Virtual reality (VR) equipment, augmented reality (AR) equipment, industrial control (industrial control) wireless terminals, unmanned driving (self-driving) wireless terminals, remote medical surgery) The wireless terminal in the smart grid, the wireless terminal in the smart grid, the wireless terminal in the transportation safety, the wireless terminal in the smart city, the wireless terminal in the smart home, each Class smart meters (smart water meters, smart electricity meters, smart gas meters), eLTE-DSA UE, equipment with integrated access and backhaul (IAB) capabilities, etc.

3) Relay equipment, a device that has a bridging function and can establish a wireless connection with terminal equipment, network equipment, or other relay equipment. When the physical distance between the terminal device and the network device is large or there are obstacles, the terminal device cannot directly connect to the network device, then at least one relay device can be deployed between the terminal device and the network device to form multi-hop communication. So as to realize the wireless connection between the terminal equipment and the network equipment.

The physical form of relay equipment can be terminal equipment, network bridge, network equipment (such as micro base station, AP, etc.), access backhaul integrated IAB node (node), customer premises equipment (CPE), with access This application is not limited to equipment with integrated capabilities for incoming and return transmission.

4) Communication equipment is a collective term for terminal equipment and relay equipment for ease of description. Therefore, in the embodiments of the present application, the first communication device, the second communication device, etc. specifically mentioned may be terminal devices or relay devices, which is not limited in this application.

5) The core network equipment is the equipment responsible for control and management functions such as mobility management or path management in the core network. Optionally, the core network equipment may be a mobility management entity (mobility management entity, MME), or a control plane function (control plane function, CPF) entity, etc.

6) The parent node of the communication device is the communication device accessed by the communication device in the wireless connection of multi-hop communication.

7) The child node of a communication device is a communication device that accesses the communication device in a wireless connection of multi-hop communication.

8). The main communication device is in a state where it is willing to turn on a specific function, or has turned on a specific function, or is designated to turn on a specific function, or is willing to activate a specific function, or has activated a specific function, or is designated to activate a specific function. equipment. For example: if the communication device is a device with relay capability, the main communication device refers to the willingness to turn on the relay function, or the relay function has been turned on, or the relay function is designated to be turned on, or the relay function is willing to be activated, or The relay function has been activated, or a device designated to activate the relay function. Another example: if the communication device is a device with IAB capability, the main communication device refers to the willingness to turn on the access backhaul integrated IAB, or the IAB is turned on, or the IAB is designated to be turned on, or the IAB is willing to be activated, or activated IAB, or a device designated to activate IAB. For example, the main communication device is an IAB node.

9). The standby communication equipment is unwilling to turn on specific functions, or willing to turn off specific functions, or has turned off specific functions, or is designated to turn off specific functions, or does not turn on specific functions, or does not activate specific functions, or does not intend to activate A specific function, or a communication device that is willing to deactivate a specific function, or has deactivated a specific function. For example: if the communication device is a device with relay capability, the standby communication device refers to unwillingly turn on the relay function, or willing to turn off the relay function, or has turned off the relay function, or is designated to turn off the relay function, or The relay function is not turned on, or the relay function is not activated, or the relay function is unwilling to activate, or the relay function is willing to be deactivated, or the relay function has been deactivated. For example: if the communication device is a device with IAB capability, the standby communication device refers to unwillingly turn on the access backhaul integrated IAB, or willing to close IAB, or closed IAB, or designated to close IAB, or unwilling to activate IAB, or a device that is willing to deactivate IAB, or has deactivated IAB, or has not opened IAB, or has not activated IAB. For example, the standby communication device is a UE or eLTE-DSA UE.

In addition, it should be understood that in the description of this application, words such as “first” and “second” are only used for the purpose of distinguishing description, and cannot be understood as indicating or implying relative importance, nor can it be understood as indicating Or imply the order.

The embodiments of the present application will be described below in conjunction with the drawings.

FIG. 1 shows the architecture of a possible communication system to which the communication method provided in the embodiment of the present application is applicable. Referring to FIG. 1, the communication system includes: an access network, a core network, and a data network (DN).

The access network provides wireless access-related services for terminal equipment, so that the terminal equipment can be converged and connected to the core network and finally connected to the data network. Wherein, the wireless access network includes network equipment and relay equipment.

Before a terminal device implements a service, it needs to access the network device and establish a wireless connection with the network device, so as to realize data transmission with the network device, so that the network device provides wireless access services for the terminal device.

Optionally, when the terminal device is within the coverage of the network device, and the signal quality of the network device signal received by the terminal device is relatively strong, the terminal device may directly establish a wireless connection with the network device, such as The terminal device a shown in Figure 1.

Optionally, when the terminal device is not within the coverage of the network device, or the terminal device is at the edge of the coverage of the network device (that is, the signal quality of the network device signal received by the terminal device is poor), the terminal device can pass through One or more relay devices establish a wireless connection with the network device to form multi-hop communication, such as terminal device b and terminal device c shown in FIG. 1.

The core network implements functions such as session management, access and mobility management, and policy control through core network equipment, as well as forwarding user plane data of terminal equipment.

The DN provides service services for the terminal device through data transmission with the terminal device, and the DN may be a PDN network, such as the Internet, IP Multi-media Service (IMS) network , Some application-specific data networks, etc.

In the embodiment of the present application, in order to ensure the continuity and efficiency of service transmission of the terminal device. In actual network deployment, the communication system can double-deploy some communication devices with relatively small or fixed locations, one of which is used as the main communication device and the other as the backup communication device. As shown in Figure 1, terminal equipment a, terminal equipment c, and each relay device. In the process of service transmission, the network equipment, various communication equipment, and core network equipment in the communication system can perform active and standby communication according to different service requirements or configuration requirements, or according to the operation of the main communication equipment at a node in the wireless connection The status change or configuration of the device.

In addition, it should be noted that the communication interaction between the main and standby communication devices may be through physical connections (such as network cables, serial cables, etc.) or wireless connections. In this way, the standby communication device can monitor the operating state of the main communication device, so as to quickly switch between the main communication device and the standby communication device when the operating state of the main communication device is abnormal. Optionally, the standby communication device may monitor the operating state of the main communication device through a heartbeat mechanism.

In addition, the main communication device can also back up the communication configuration information used during service transmission to the backup communication device. In this way, when a master/backup switch occurs, the backup communication device can be configured through the saved communication configuration information. , Can reduce the time delay caused by the transmission of communication configuration information through the network equipment or upper relay equipment, and quickly restore the wireless connection.

It should also be pointed out that the communication system shown in FIG. 1 is taken as an example, and does not constitute a limitation on the communication system to which the method provided in the embodiment of the present application is applicable. Embodiments of the present application may also be applied to various types of communication systems and formats, for example: the fifth generation (The 5 ^th Generation, 5G) communication system, a long term evolution (Long Term Evolution, LTE) communication system, all the vehicles (vehicle to everything, V2X), long-term evolution-Internet of Vehicles (LTE-vehicle, LTE-V), Vehicle to Vehicle (V2V), Internet of Vehicles, Machine Type Communications (MTC), Internet of Things (Internet of Things) of things (IoT), long-term evolution-machine to machine (LTE-machine to machine, LTE-M), machine to machine (M2M), Internet of Things, enterprise LTE discrete spectrum aggregation (enterprise LTE discrete spectrum aggregation, eLTE-DSA) system, etc., which are not limited in the embodiment of this application.

In order to realize the state switching of the main communication device and/or the standby communication device in the communication system as shown in FIG. 1 to ensure the efficiency of service transmission in the communication system, an embodiment of the present application provides a communication method. In this method, it mainly includes the following processes: the communication equipment access network process, the state initialization process of the communication equipment, and the state change process of the communication equipment. The following takes two communication devices deployed in the same location—the first communication device and the second communication device—as an example for description. In addition, for ease of description, the parent node of the first communication device and/or the second communication device is referred to as a third communication device.

The following first describes the process of connecting the communication device to the network.

In order to ensure that the first communication device and the second communication device can implement state switching and ensure that a wireless connection can be successfully established, the first communication device and the second communication device need to access the same cell.

Optionally, when the first communication device and the second communication device establish a connection with the network device through a third communication device, the cell is a cell managed by the third communication device; when the first communication device When a communication device and the second communication device directly establish a connection with the network device, the cell is a cell managed by the network device.

Optionally, the first communication device and the second communication device may, but are not limited to, access the same cell through the following implementation manners.

Implementation method one:

There is a communication connection between the first communication device and the second communication device, and communication interaction can be performed. After one of the first communication device and the second communication device successfully accesses the cell, the cell information of the cell is sent to the other communication device through the communication connection; the other communication device uses the cell information Access the cell.

Implementation method two:

The cell information of accessible cells is set in the first communication device and the second communication device, respectively, and the cell information set in the two communication devices is the same. In this way, the first communication device and the second communication device can access the same cell.

Implementation method three:

In the system message broadcast by the network device or the third communication device, the cell information used for the access of the main and standby communication devices is added; the first communication device and the second communication device can access the same one according to the system message Community.

Optionally, in each of the foregoing implementation manners, the cell information may include: cell identification, frequency point information used by the cell, and identification of a communication device that manages the cell, and so on.

Optionally, the first communication device and the second communication device may access the network device or the third communication device by random access, and establish a radio resource control (RRC) connection with the network device .

Exemplarily, the embodiments of the present application provide the following examples to specifically describe the process of a communication device accessing a network.

Example 1: In the case that the first communication device and the second communication device use the above implementation mode 1 to access the same cell managed by the third communication device, refer to Figure 2 for the communication device access network flow. It includes the following steps:

S201: The first communication device accesses the third communication device through a random access procedure.

Before performing the random access procedure, the first communication device searches for a cell managed by the third communication device in a network search process. Then the first communication device receives the system message broadcast by the third communication device, and obtains the random access configuration information of the cell contained in the system message, so as to realize the random access configuration information through the random access configuration information of the cell. Into the process.

S202: The first communication device sends a first RRC connection request (RRC connection request) to the third communication device to request the establishment of an RRC connection.

S203: The third communication device sends a second RRC connection request to the network device to request the first communication device to establish an RRC connection.

Optionally, when the third communication device accesses the network device through another communication device, when S203 is performed, the third communication device sends the second RRC to the network device by means of forwarding by the other communication device Connection request.

S204: After receiving the second RRC connection request, the network device sends a first RRC connection setup (RRC connection setup) to the third communication device.

Optionally, when the third communication device accesses the network device through another communication device, when S204 is performed, the network device also needs to send the first communication device to the third communication device by means of forwarding by other communication devices. An RRC connection setup.

S205: After receiving the first RRC connection setting, the third communication device sends the second RRC connection setting to the first communication device.

S206: After receiving the second RRC connection setup, the first communication device sends an RRC connection setup complete (RRC connection setup complete) to the network device.

Through the above steps S201-S206, the first communication device successfully establishes an RRC connection with the network device, and can perform data transmission with the network device.

Optionally, S202 may be performed during the process of performing S201 by the first communication device. For example, when the first communication device sends a scheduled transmission (scheduled transmission) message (also called message 3 (message 3, msg3)) , Sending the RRC connection request.

S207: The first communication device sends the cell information of the cell accessed by the first communication device to the second communication device through a communication connection between the first communication device and the second communication device.

S208: The second communication device selects to access the third communication device according to the received cell information.

Similarly, the second communication device successfully establishes an RRC connection with the network device through S209-S214. For the specific description process, please refer to the above description of S201-S206, which will not be repeated here.

It should also be noted that when the first communication device and the second communication device are relay devices, the first communication device or the second communication device whose status is the master communication device is successfully communicating with the After the network device establishes an RRC connection, it may broadcast a synchronization signal/system message, so that other communication devices or terminal devices can access the first communication device.

Example 2: When the first communication device and the second communication device directly access the network device, the specific process can also refer to FIG. 2. The difference is that the first communication device and the second communication device access the network device through a random access process; in the process of establishing an RRC connection between the first communication device and the second communication device and the network device, There is no need to forward information through a third communication device.

In order to ensure the effectiveness of the wireless link between the communication device and the network device, two communication devices and network devices deployed in the same location need to determine the status of the two communication devices so that the network device can determine the status of the two communication devices according to the first communication device and the network device. The status of the second communication device, and the wireless interface configuration of the two communication devices.

Therefore, no matter in the state initialization process of the communication device or the state change process of the communication device, the state of each communication device needs to be saved synchronously on the communication device side and the network device.

Optionally, when the first communication device and the second communication device establish a connection with the network device through the third communication device, the third communication device may also synchronously save the states of the two communication devices.

The following describes the state initialization process of the communication device.

In the embodiment of the present application, the communication system shown in FIG. 1 may, but is not limited to, adopt the following implementation manners to initialize the states of the first communication device and the second communication device. For ease of description, in the following implementation manners, the state initialized by the first communication device is the main communication device, and the state initialized by the second communication device is the standby communication device as an example for description.

Implementation manner 1: The first communication device and/or the second communication device report status information to the network device.

Example 1: When the first communication device and the second communication device establish a wireless connection with the network device by accessing the third communication device. Referring to Figure 3, the state initialization process of the communication device specifically includes:

S301: After accessing the third communication device, the first communication device sends first status information to the third communication device, where the first status information is used to notify: the status of the first communication device Main communication equipment.

Optionally, the first communication device may send the first status information to the third communication device in the following manner:

Manner 1: The first communication device sends the identification of the first communication device to the network device, where the identification of the first communication device includes an indication field, and the indication field is used to indicate the first communication device. The state of the communication device is the main communication device.

Optionally, in this embodiment of the present application, the identifiers of the first communication device and the second communication device may be preset and stored in a module, or may be configured at the application layer. For example, the identifier may be an international mobile equipment identity (IMEI), or an access backhaul integrated node identity (IAB node identity), or other fixed identifiers that can uniquely identify a communication device.

Optionally, the identities of the first communication device and the second communication device may also be preset and stored in a subscriber identity module (SIM), or an embedded subscriber identity module (SIM) module, eSIM). For example, the identifier may be an international mobile subscriber identification number (IMSI), or an integrated node identification code for access and backhaul, or other fixed identifiers that can uniquely identify the user of the communication device.

Optionally, the identities of the two dual-deployed communication devices comply with the set rules. Optionally, the setting rule may be stipulated by a protocol or negotiated between various communication devices in the communication system.

For example, the set field (such as high N bits) in the identifier of the first communication device and the identifier of the second communication device are the same, and the indication field (such as low M bits) is different. Among them, M and N are positive integers and fixed values. Of course, the indication fields contained in the identifiers of different communication devices of the primary communication device in the initial state are generally the same, and the indication fields contained in the identifiers of the different communication devices of the standby communication device in the initial state are also the same.

For example, the identification of communication device 1 is AAA111, the identification of communication device 2 is AAA000, the identification of communication device 3 is BBB111, and the identification of communication device 4 is BBB000. From the identification of each communication device, it can be seen that communication device 1 and communication device 3 are main communication devices, communication device 2 and communication device 4 are standby communication devices, and communication device 1 corresponds to communication device 2, and communication device 3 corresponds to communication device 4 .

For another example, the number representing the identification of the first communication device and the number representing the identification of the second communication device satisfy a specific mathematical relationship.

In short, any device in the communication system can determine the identity of the corresponding main and standby communication device according to the identity of one of the communication devices and the setting rule.

Manner 2: The first communication device sends instruction information of the second communication device to the network device, where the instruction information of the second communication device is used to indicate that the standby communication device corresponding to the first communication device is the first communication device 2. Communication equipment.

In this way, the network device can learn the status of the first communication device through the indication information of the second communication device, and the standby communication device corresponding to the first communication device is the second communication device.

Manner 3: The first communication device sends a status indication to the network device, where the status indication is used to indicate that the status of the first communication device is the master communication device.

Optionally, the status indication may be a master communication device status indication, that is, only a communication device whose initial state is the master communication device can send the status indication.

Optionally, the state indication may indicate different states by taking different values. For example, when the status indication value is 1, the status indication is used to indicate that the status is the master communication device, and when the status indication value is 0, the status indication is used to indicate that the status is the standby communication device.

It should be noted that, in the third manner, the network device may determine that the status indication is sent by the first communication device through various conventional technologies. For example, the status indication includes indication information of the first communication device.

Manner 4: The first communication device sends the identification and status indication of the first communication device to the network device, the status indication is used to indicate that the status is the master communication device, and the identification of the first communication device is used to Notification: The state indicated by the state indication is the state of the first communication device.

Manner 5: The first communication device sends a status indication and indication information of a second communication device to the network device, where the status indication is used to indicate that the status of the first communication device is the master communication device, and the second communication device The indication information of the communication device is used to indicate that the standby communication device corresponding to the first communication device is the second communication device.

In the above manner, the indication information of any communication device (of the first communication device or the second communication device) is any one of the following: the identification of the communication device, the network identification of the communication device, and the communication device The user identification of the communication device and the integrated node identification code of the communication device.

Optionally, the network identifier of the communication device is a temporary identifier allocated by the network when the communication device accesses the network, for example, a cell-radio network temporary identifier (C-RNTI).

Optionally, the identification of the communication device is an access backhaul integrated node identification code, IMEI or other fixed identification that can uniquely identify the communication device.

Optionally, the user identifier of the communication device is an access backhaul integrated node identification code, IMSI or other fixed identifier that can uniquely identify the communication device.

S302: The third communication device sends the first state information to the network device.

S303: If the network device determines that the state of the first communication device is not stored locally, it determines that the state of the first communication device is the master communication device according to the first state information.

S304: After accessing the third communication device, the second communication device sends second status information to the third communication device, where the second status information is used to notify: the status of the second communication device For the preparation of communication equipment.

Optionally, similar to the first communication device sending the first status information, the second communication device may also use five methods to send the second status information to the third communication device.

Manner 1: The second communication device sends the identification of the second communication device to the network device, where the identification of the second communication device includes an indication field, and the indication field is used to indicate the second communication device. The status of the communication device is standby communication device.

Manner 2: The second communication device sends instruction information of the first communication device to the network device, where the instruction information of the first communication device is used to indicate that the primary communication device corresponding to the second communication device is the first communication device One communication equipment.

Manner 3: The second communication device sends a status indication to the network device, where the status indication is used to indicate that the status of the second communication device is a standby communication device.

Optionally, the status indication may be a standby communication device status indication, that is, only a communication device whose initial state is the standby communication device can send the status indication.

Optionally, the state indication may indicate different states by taking different values.

It should be noted that in the third manner, the network device may determine that the status indication is sent by the second communication device through various conventional technologies. For example, the status indication includes indication information of the second communication device.

Manner 4: The second communication device sends the identification and status indication of the second communication device to the network device, the status indication is used to indicate that the status is a standby communication device, and the identification of the second communication device is used for Notification: The state indicated by the state indication is the state of the second communication device.

Manner 5: The second communication device sends a status indication and indication information of the first communication device to the network device, where the status indication is used to indicate that the status of the second communication device is a standby communication device, and the first communication device The instruction information of the communication device is used to indicate that the primary communication device corresponding to the second communication device is the first communication device.

S305: The third communication device sends the second status information to the network device.

S306: If the network device determines that the state of the second communication device is not stored locally, it determines that the state of the second communication device is a standby communication device according to the second state information.

Optionally, the communication device state configuration information is maintained in the network device, and the communication device state configuration information includes the states of multiple communication devices, and the network device may retrieve the first communication device state configuration information from the communication device state configuration information. A communication device and/or the second communication device, thereby determining whether to save the state of the first communication device and/or the second communication device.

Optionally, the third communication device may determine the status of the first communication device and/or the second communication device through S307a and S307b, or S308.

S307a: After the third communication device receives the first state information, if it is determined that the state of the first communication device is not saved locally, determine the state of the first communication device according to the first state information Main communication equipment.

S307b: After the third communication device receives the first state information, if it is determined that the state of the second communication device is not saved locally, determine the state of the second communication device according to the second state information For the preparation of communication equipment.

S308: The network device sends the first status information/the second status information to the third communication device; or, the network device sends communication device status configuration information to the third communication device. In the communication device state configuration information, the state of the first communication device is the master communication device, and the state of the second communication device is the standby communication device.

Example 2: When the first communication device and the second communication device are directly connected to the network device, the specific flow of the state initialization process of the communication device can also be seen in FIG. 3. The difference is that the first communication device and the second communication device directly send the status information to the network device.

Example 3: When the first communication device and the second communication device establish a wireless connection with the network device by accessing the third communication device, referring to FIG. 4, the specific process of the state initialization process of the communication device includes:

S401: After the first communication device accesses the third communication device, it sends status information to the network device through the third communication device, where the status information is used to notify: The status is the main communication device.

S402: If the network device determines that the state of the first communication device is not saved locally, it determines that the state of the first communication device is the master communication device according to the state information, and corresponds to the preset master and backup communication device Relationship, determining that the standby communication device corresponding to the first communication device is the second communication device.

Optionally, the corresponding relationship between the active and standby communication devices is: a set rule that conforms to the identity of the first communication device and the identity of the second communication device. The setting rule may be stipulated by an agreement or negotiated between various communication devices in the communication system. The status information includes the identity of the first communication device, so that the network device can determine the identity of the second communication device according to the identity of the first communication device, thereby determining the identity of the first communication device The standby communication device is the second communication device.

For example, in this setting rule, the first 3 digits of the identification of the primary communication device and the identification of the standby communication device are the same, the last 1 digit is different, and the status of the communication device whose 1 digit value is 0 after the identification is the standby communication device. The status of a communication device with a value of 1 is the master communication device. When the identifier of the first communication device is XXX1, the network device may determine that the identifier of the standby communication device corresponding to the first communication device is XXX0.

Optionally, the corresponding relationship between the active and standby communication devices is stored by the network device or received from a core network device. The corresponding relationship between the main and standby communication devices includes the indication information of the first communication device and the indication information of the second communication device, for example, as shown in Table 1 or Table 2. Wherein, the indication information of any communication device may be the identification of the communication device, the network identification of the communication device, the user identification of the communication device, and so on.

Table 1

主备通信设备对应关系标识Correspondence identification of main and standby communication equipment	通信设备的指示信息Instructions for communication equipment	通信设备的指示信息Instructions for communication equipment
00	第一通信设备的指示信息Instruction information of the first communication device	第二通信设备的指示信息Instruction information of the second communication device
11	……...	……...

Table 2

主备通信设备对应关系标识Correspondence identification of main and standby communication equipment	通信设备的指示信息Instructions for communication equipment
00	第一通信设备的指示信息Instruction information of the first communication device
00	第二通信设备的指示信息Instruction information of the second communication device
……...	……...

S403: The network device sends a status indication to the second communication device through the third communication device, where the status indication is used to indicate that the status of the second communication device is a standby communication device.

Example 4, which is the same as Example 3, is also executed when the first communication device and the second communication device establish a wireless connection with the network device by accessing the third communication device. The process is similar to Example 3, except that the second communication device reports its own state. Refer to Figure 5, the specific process includes:

S501: After the second communication device accesses the third communication device, it sends status information to the network device through the third communication device, where the status information is used to notify: The status is standby communication equipment.

S502: If the network device determines that the state of the second communication device is not saved locally, it determines that the state of the second communication device is a standby communication device according to the state information, and corresponds to a preset master and standby communication device Relationship, determining that the primary communication device corresponding to the second communication device is the first communication device.

For the corresponding relationship between the main and standby communication devices, please refer to the specific description in Example 3, which will not be repeated here.

S503: The network device sends a status indication to the first communication device through the third communication device, where the status indication is used to indicate that the status of the first communication device is the master communication device.

Examples 5 and 6 are both executed when the first communication device and the second communication device are directly connected to the network device, and refer to FIG. 6 and FIG. 7 respectively. 4 and 5, the message interaction between the first communication device, the second communication device, and the network device does not need to be forwarded through the third communication device, so the specific process can be referred to the above description of FIGS. 5 and 6 The description of the illustrated example will not be repeated here.

Implementation manner 2: The first communication device sends request information to the network device for requesting to become the master communication device.

Example 1: In the case where the first communication device is directly connected to the network device, refer to FIG. 8. In this example, description is made by taking the first communication device as a communication device with IAB capability as an example. The process of the first communication device requesting to become the master communication device specifically includes:

S801: The first communication device sends request information to the network device, where the request information is used to request to turn on or activate the IAB.

Optionally, the request information includes the IAB node identification code of the first communication device.

Optionally, the request information includes the IAB node identification code and/or C-RNTI of the second communication device. Optionally, the second communication device and the first communication device have a pairing relationship or an association relationship or a pairing relationship or a corresponding relationship between a master and a backup communication device or belong to the same device group.

Optionally, the request information is an access backhaul integrated connection request (IAB connection request) message or an access backhaul integrated activation request (IAB activation request) message or an access backhaul integrated activation request (IAB enable) message. request) or access backhaul integrated permission request (IAB permission request).

Optionally, before S801 or after S801, the network device may send a query instruction to the first communication device, where the query instruction is used to instruct the first communication device to send pairing status information to the network device . After receiving the query instruction, the first communication device sends pairing status information to the network device.

Optionally, the pairing status information includes one or more of the following: an identifier of a communication device that has a pairing relationship with the first communication device, an IAB node of a communication device that has a pairing relationship with the first communication device An identification code, a C-RNTI of a communication device that has a pairing relationship with the first communication device, and a status indication of a communication device that has a pairing relationship with the first communication device. Wherein, the status indication is used to indicate that the status of the communication device that has a pairing relationship with the first communication device is the standby communication device or the main communication device.

S802a: If the first communication device receives the configuration information sent by the network device, the first communication device turns on or activates the IAB.

The configuration information is used to configure the first communication device to enable or activate IAB, or to configure/reconfigure the IAB parameters of the first communication device. The configuration information may be an access backhaul integrated configuration (IAB configuration) message or an access backhaul integrated connection configuration (IAB connection configuration) message or an access backhaul integrated setup (IAB setup) message or an access backhaul. Transmission of integrated connection setup (IAB connection setup) message.

In this case, the state of the first communication device is the master communication device. Optionally, after the network device sends the configuration information to the first communication device, it may also send a status indication to the second communication device for notifying the second communication device to be a standby communication device, So that the second communication device no longer initiates the process of becoming the master communication device.

S802b: If the first communication device receives the rejection information sent by the network device, the first communication device does not turn on or does not activate the IAB. The rejection information is used to reject the request of the first communication device to turn on or activate the IAB.

Optionally, after receiving the rejection information, the first communication device may send a request information again to request to become the primary communication device; or the first communication device may determine its own status as a backup communication device after receiving the rejection information, After the network device sends the rejection information to the first communication device, it also sends configuration information to the second communication device to instruct the second communication device to become the master communication device; or the first communication device The second communication device is notified through the communication connection with the second communication device that the request of the first communication device to become the master communication device has failed, so that the second communication device requests to become the master communication device through the above process.

Example 2: When the first communication device establishes a wireless connection with the network device by accessing the third communication device, the flow of the first communication device requesting to become the master communication device can also be referred to as shown in FIG. 8. The difference is that the information interaction between the first communication device and the network device is forwarded by the third communication device.

Implementation manner 3: The network device sets the status of the first communication device and the second communication device, and notifies the respective status of the first communication device and the second communication device. In this implementation manner, the communication device state configuration information is maintained in the network device, and the communication device state configuration information stores the state of the first communication device and/or the state of the second communication device.

Example 1: After the first communication device and the second communication device access the network device through the third communication device, the network device passes through the third communication device according to the stored state configuration information of the communication device. The communication device sends a first status indication and a second status indication to the first communication device and the second communication device, respectively. The specific process can be referred to as shown in Figure 9.

The first status indication is used to indicate that the status of the first communication device is a master communication device, and the second status indication is used to indicate that the status of the second communication device is a standby communication device.

Example 2: After the first communication device and the second communication device access the network device through the third communication device, the network device respectively communicates with the first communication device through the third communication device The device and the second communication device send communication device state configuration information. The specific process can also be referred to as shown in FIG. 9. When different, replace the first status indication and the second status indication in the figure with the communication device status configuration information.

Example 3: After the first communication device and the second communication device access the network device through the third communication device, the network device sends a first status indication or communication to the third communication device Device status configuration information, where the first status indication is used to indicate that the status of the first communication device is the master communication device and/or the status of the second communication device is the standby communication device. After receiving the first status indication or the communication device status configuration information, the third communication device sends a second status indication to the first communication device, and sends a third status indication to the second communication device.

The second state indication is used to indicate that the state of the first communication device is a master communication device, and the third state indication is used to indicate that the state of the second communication device is a standby communication device.

Example 4 and Example 5: Both are executed when the first communication device and the second communication device are directly connected to the network device, and the specific process can also be referred to FIG. 9. The difference is that the message interaction between the first communication device, the second communication device, and the network device does not need to be forwarded through the third communication device.

It should be noted that in each of the above examples, when the first communication device and the second communication device establish a wireless connection with the network device by accessing the third communication device, the network device will include or indicate When information about the states of a communication device and a second communication device is sent to the third communication device, the third communication device saves the states of the first communication device and the second communication device.

Implementation manner 4: The core network device sets the status of the first communication device and the second communication device, and notifies the network device of the status of the first communication device and the second communication device. In this implementation manner, the communication device state configuration information is maintained in the core network device, and the communication device state configuration information stores the state of the first communication device and/or the state of the second communication device. After the network device establishes a connection with the core network device, the core network device sends the communication device state configuration information to the network device; then, the network device then informs the first The respective status of the communication device and the second communication device. The flow of each example in the fourth implementation manner may refer to the flow of each example in the third implementation manner, which will not be repeated here.

Optionally, the core network device may carry the communication device state configuration information in an initial context setup request (initial context setup Request).

Optionally, in the above example, when any communication device (the first communication device or the second communication device) exchanges information with other devices, the information includes its identification. In addition, when the information contains or indicates the status of a certain communication device, it also contains the identification of the communication device.

It should be noted that, in the embodiment of the present application, the state initialization process of the communication device may be performed after the communication device accesses the network process. Optionally, the information exchange in the state initialization process of the communication device may be implemented in the RRC connection re-establishment process, the RRC connection recovery process, or the RRC connection reconfiguration process. For example, in each of the above implementations, when the first communication device or the second communication device sends status information to the third communication device or network device, or when the third communication device sends status information or communication device status configuration information to the network device , The corresponding information can be carried in the RRC connection reestablishment request, the RRC connection recovery request, or the RRC connection reconfiguration request. Of course, when any two devices in the above implementations exchange other information, the information can also be carried in the RRC connection re-establishment, RRC connection recovery process, or the information exchanged between the two devices during the RRC connection reconfiguration process, specifically I won't repeat them here.

It should also be noted that, in the embodiment of the present application, the state initialization process of the communication device may also be performed during the process of the communication device accessing the network. Optionally, the information exchange in the state initialization procedure of the communication device may be implemented during the establishment of the RRC connection. For example, when the first communication device or the second communication device sends status information to the third communication device or network device, or when the third communication device sends status information or communication device status configuration information to the network device, the corresponding information may be carried In the RRC connection establishment request.

In addition, optionally, the communication device status configuration information maintained in each device of the communication system may be as shown in Table 3 or Table 4:

table 3

Table 4

The state change process of a communication device specifically includes the following two sub-processes: the state change trigger sub-process and the wireless interface configuration sub-process.

The following describes the state change trigger sub-process.

In the embodiment of this application, the implementation of the state change trigger is as follows:

Implementation manner 1: Triggered by the first communication device whose status is the master communication device;

Implementation manner 2: triggered by the second communication device in the standby communication device state;

Implementation manner 3: triggered by the third communication device, the parent node of the first communication device and/or the second communication device;

Implementation manner 4: triggered by the network device;

Implementation mode 5: Triggered by core network equipment.

Optionally, in actual applications, the communication system can be triggered by any of the above implementations, or triggered by a combination of any of the implementations, which is not limited in this application. It should be noted that when the communication system is triggered by the realization method 1, the communication system also needs to send a state change instruction to the second communication device that is about to change to the primary communication device; when the communication system is triggered by the realization method 2, the communication system The state change instruction may be sent to the second communication device that is about to change to the main communication device, or not. When the communication system uses both implementation manner 1 and implementation manner 2 to be triggered at the same time, the communication system does not need to send state change instructions to the first communication device and the second communication device.

The following describes each implementation manner through examples.

Implementation method one:

Optionally, the first communication device whose status is the master communication device may detect that its operating status is poor (for example, the hardware temperature reaches a preset value, or the system software version is low and needs to be upgraded, etc.), or the status is the master communication device. When the duration of the device reaches the set duration, the status change is triggered.

Example 1: In a case where the first communication device and the second communication device access the network device through the third communication device. As shown in Figure 11, the state change triggering sub-process specifically includes:

S1101: The first communication device sends a first state change instruction to the network device through the third communication device, where the first state change instruction is used to notify: the state of the first communication device is controlled by the main communication device Change to standby communication equipment.

Optionally, the first state change indication includes any one or a combination of the following: the identification of the correspondence between the active and standby communication devices, the identification of the first communication device, the network identification of the first communication device, the first communication device A status indication of a communication device, an identification of the second communication device, a network identification of the second communication device, a status indication of the second communication device, and an indication of the reason for the status change.

S1102: After receiving the first state change instruction, the network device determines that the standby communication device corresponding to the first communication device (before the state change) is the second communication device, and has a status of the communication device maintained locally The states of the first communication device and the second communication device in the configuration information are changed, and then a second state change instruction is sent to the second communication device through the third communication device, the second state change instruction It is used to notify that the status of the second communication device is changed from the standby communication device to the master communication device.

Optionally, when the first state change indication does not include the identifier of the second communication device and the network identifier, the network device may determine the backup device corresponding to the first communication device through the corresponding relationship between the master and backup communication devices. The communication device is the second communication device, and the network device may also determine that the standby communication device corresponding to the first communication device is the second communication device based on the content in the first state change instruction.

For example, the network device may first determine the target master-backup communication of the first communication device through the identification of the correspondence between the master and backup communication devices, the identification of the first communication device, the network identification of the first communication device, etc. Device correspondence, and then another communication device (the second communication device) included in the target master-backup communication device correspondence is the backup communication device corresponding to the first communication device.

Optionally, in this example 1, in the case that the third communication device also maintains the communication device state configuration information, the third communication device may receive the first state change instruction through the above In the manner of a network device, the states of the first communication device and the second communication device in the locally maintained communication device state configuration information are changed. When the third communication device does not perform the above process, but does not process the first state change instruction and forwards it directly to the network device, the network device may also instruct the third communication through S1103a or S1103b The device changes the states of the first communication device and the second communication device in the maintained communication device state configuration information.

S1103a: The network device sends a third state change instruction to the third communication device, where the third state change instruction is used to notify that the state of the first communication device is changed from the main communication device to the backup communication device, and /Or, the state of the second communication device is changed from the standby communication device to the master communication device.

S1103b: The network device sends the state configuration information of the communication device after the state update to the third communication device. In the updated state configuration information of the communication device, the state of the first communication device is the standby communication device, and the state of the second communication device is the master communication device.

Example 2: In the case where the first communication device and the second communication device are directly connected to the network device. The specific process of the state change triggering sub-process can also be seen in Figure 11. The difference is that the message interaction between the first communication device, the second communication device, and the network device does not need to be forwarded through the third communication device.

Example 3: In the case where the first communication device and the second communication device access the network device through the third communication device. Referring to Figure 12, the state change triggering sub-process specifically includes:

S1201: Same as S1101, and will not be repeated here.

S1202: After receiving the first state change instruction, the network device determines that the standby communication device corresponding to the first communication device (before the state change) is the second communication device, and has a status of the communication device maintained locally The state of the first communication device and the second communication device in the configuration information is changed; and then the updated state configuration information of the communication device is sent to the third communication device.

S1203: After receiving the updated communication device status configuration information, the third communication device determines that the standby communication device (before the status change) corresponding to the first communication device is the second communication device, and then sends The second communication device sends the second state change instruction. Wherein, the second state change indication is used to notify that the state of the second communication device is changed from the standby communication device to the master communication device.

Implementation method two:

Optionally, the second communication device in the state of the standby communication device may trigger the state change when it detects that the first communication device operates abnormally, or when the duration of the state of the standby communication device reaches a set duration.

Refer to FIG. 13 and FIG. 14, which are similar to the examples in the first implementation manner. Therefore, the specific process can be referred to the related description in the above implementation manner 1, which will not be repeated here. The difference is that the second communication device sends a first state change instruction to the network device, and the first state change instruction is used to notify that the state of the second communication device is changed from the standby communication device to the master communication device. The second state change instruction sent by the network device or the third communication device to the first communication device is used to notify that the state of the first communication device is changed from the main communication device to the standby communication device.

Optionally, the second communication device in the status of the standby communication device may be a communication device that is not turned on or that does not activate IAB. Optionally, the second communication device may use the process shown in FIG. 8 to request to become the master communication device, that is, the second communication device sends request information to the network device. Wherein, the request information is used to request to open or activate the IAB.

Optionally, the request information includes the IAB node identification code of the second communication device.

Optionally, the request information includes the IAB node identification code and/or C-RNTI of the first communication device.

Optionally, the request information is an access backhaul integrated connection request message or an access backhaul integrated activation request message or an access backhaul integrated start request or an access backhaul integrated permission request.

When the second communication device receives the configuration information sent by the network device, the second communication device determines that its state is changed to the master communication device.

Implementation mode three:

Optionally, the third communication device may detect a communication abnormality (for example, the number of retransmissions of service data is greater than a set number), or determine that the state of the first communication device is the main communication device and the duration reaches the set time period. To trigger a status change.

Example 1: In a case where the first communication device and the second communication device access the network device through the third communication device. Referring to Figure 11, the state change triggering sub-process specifically includes:

S1501: After determining that the above-mentioned state change condition is currently met, the third communication device sends a first state change instruction to the network device, where the first state change instruction is used to notify: the state of the first communication device is controlled by the host The communication device is changed to a standby communication device, and/or, the status of the second communication device is changed to the standby communication device as the master communication device; or the third communication device responds to the first communication device status configuration information maintained locally The state of a communication device and the second communication device is changed, and then the updated state configuration information of the communication device is sent to the network device.

After the network device receives the first state change instruction or the updated communication device state configuration information of the third communication device, it also checks the first communication device and all communication devices in the locally maintained communication device state configuration information. The state of the second communication device is changed.

S1502: The network device sends a second state change instruction to the first communication device through the third communication device. The second state change indication is used to notify that the state of the first communication device is changed from a main communication device to a backup communication device.

S1503: The network device sends a third state change instruction to the second communication device through the third communication device. The third state change indication is used to notify that the state of the second communication device is changed from the standby communication device to the master communication device.

Realization way four:

Optionally, the network device may trigger the state change after determining that the state of the first communication device is the main communication device for a duration of a set duration or after receiving a notification of the state change input by a technician.

Example 1: In a case where the first communication device and the second communication device access the network device through the third communication device. Referring to Figure 16, the state change triggering sub-process specifically includes:

S1601: After the network device determines that the above-mentioned state change condition is currently met, it changes the state of the first communication device and the second communication device in the locally maintained communication device state configuration information, and communicates to the first communication device. The device sends a first state change instruction, where the first state change instruction is used to notify that the state of the first communication device is changed from a main communication device to a backup communication device.

S1602: The network device sends a second state change instruction to the second communication device, where the second state change instruction is used to notify that the state of the second communication device is changed from the standby communication device to the master communication device.

Optionally, when the third communication device also maintains communication device state configuration information, after the third communication device receives the first state change instruction and the second state change instruction, The states of the first communication device and the second communication device in the locally maintained communication device state configuration information may be changed. When the third communication device does not perform the above process, but does not process the first state change instruction and the second state change instruction, and directly forwards them to the first communication device and the second communication device, the The network device may also notify the third communication device to change the state of the first communication device and the second communication device in the maintained communication device state configuration information through S1603.

S1603: The network device sends the changed communication device state configuration information maintained by the network device to the third communication device.

Example 2: In the case where the first communication device and the second communication device are directly connected to the network device. The specific process of the state change triggering sub-process can also be seen in Figure 16. The difference is that the message interaction between the first communication device, the second communication device, and the network device does not need to be forwarded through the third communication device.

Example 3: In the case where the first communication device and the second communication device access the network device through the third communication device. Referring to Figure 16, the state change triggering sub-process specifically includes:

S1701: The network device changes the state of the first communication device and the second communication device in the locally maintained communication device state configuration information after determining that the above-mentioned state change condition is currently satisfied. Then, the network device sends a first state change instruction to the third communication device, where the first state change instruction is used to notify that the state of the first communication device is changed from the main communication device to the standby communication device, and /Or, the status of the second communication device is that the standby communication device changes to the master communication device; or the network device sends the updated communication device status configuration information to the third communication device.

S1702: The third communication device sends a second state change instruction to the first communication device according to the received first state change instruction or the communication device state configuration information updated by the network device. The second state change indication is used to notify that the state of the first communication device is changed from a main communication device to a backup communication device.

S1703: The third communication device sends a third state change instruction to the second communication device according to the received first state change instruction or the communication device state configuration information updated by the network device. The third state change indication is used to notify that the state of the second communication device is changed from the standby communication device to the master communication device.

Example 5: After the network device determines that the above state change condition is currently met, the network device sends configuration information to the second communication device, where the configuration information is used to configure the second communication device to enable or activate IAB.

Optionally, the configuration information may be an access backhaul integrated configuration message or an access backhaul integrated connection configuration message or an access backhaul integrated establishment message or an access backhaul integrated connection establishment message.

Optionally, the configuration information includes an IAB activation instruction or an IAB activation instruction.

Example 6: After the network device determines that the above state change condition is currently met, the network device sends configuration information to the first communication device, and the configuration information is used to configure the first communication device to be turned off or not turned on or IAB is activated or not activated.

Optionally, the configuration information may be an access backhaul integrated release message or an access backhaul integrated connection release message.

Optionally, the configuration information includes an IAB deactivation instruction or an IAB shutdown instruction.

It should also be noted that in the above four implementation manners, when the state configuration information of the communication device is maintained in the core network device, the network device needs to notify the core network device after determining that the state of the first communication device has changed. The network device sends a status change instruction. Optionally, the status change indication may be carried in a UE context modification indication (UE context modification indication).

Implementation mode five:

Optionally, the core network device may trigger the state change when it is determined that the duration of the first communication device state as the main communication device reaches a set duration, or after receiving a notification of state change input by a technician.

After the core network device determines that the above-mentioned state change condition is currently met, the state of the first communication device and the second communication device in the locally maintained communication device state configuration information is changed. Then, the core network device sends a first state change instruction to the network device, where the first state change instruction is used to notify that the state of the first communication device is changed from a primary communication device to a backup communication device, and/ Or, the status of the second communication device is that the standby communication device changes to the master communication device; or the core network device sends the updated communication device status configuration information to the network device.

Optionally, the first state change indication may be carried in a UE context modification request (UE context modification Request).

Subsequently, the network device may notify the respective states of the first communication device and the second communication device according to the received first state change instruction or the communication device state configuration information updated by the core network device. Specifically, the network device may notify the respective states of the first communication device and the second communication device through the methods in each example in the fourth implementation manner. Therefore, for the process of each example in the implementation manner five, refer to the implementation manner The process of each example in the fourth is not repeated here.

It should be noted that the status change indications involved in each example in each of the above implementations include any one or a combination of the following: the identification of the correspondence between the active and standby communication devices, the identification of the first communication device, and the first communication device. The network identification of the communication device, the status indication of the first communication device, the identification of the second communication device, the network identification of the second communication device, the status indication of the second communication device, and the status change reason indication.

During or after the state change triggering sub-process, that is, after the network device updates the state configuration information of the communication device maintained by the network device, the communication system may start to execute the wireless interface configuration sub-process, and perform the wireless interface configuration sub-process for the first communication device and The second communication device performs wireless interface configuration so that the network device can release the wireless connection with the first communication device and establish a wireless connection with the second communication device.

Optionally, in the embodiment of the present application, the network device may release the RRC connection with the first communication device through a traditional RRC release process. Then, the first communication device can terminate the communication service of the relay cell it manages.

Optionally, the network device may establish an RRC connection with the second communication device through an RRC reconfiguration process.

Example 1: In the case where the first communication device and the second communication device access the network device through the third communication device. Referring to FIG. 18, the process of establishing an RRC connection between the network device and the second communication device specifically includes:

S1801: The network device updates the routing table after updating the state configuration information of the communication device maintained by itself, and sends a G1 port RRC connection reconfiguration (RRC connection reconfiguration) to the third communication device.

S1802: The third communication device updates the routing table after receiving the G1 port RRC connection reconfiguration sent by the third communication device, and sends the Ur port RRC connection reconfiguration to the second communication device.

Optionally, the Ur port RRC connection reconfiguration includes routing information.

S1803: The second communication device performs radio interface configuration according to the received Ur port RRC connection reconfiguration, and after the configuration is completed, sends the Ur port RRC connection reconfiguration complete (RRC connection reconfiguration complete) to the third communication device.

In this step, the wireless interface configuration performed by the second communication device includes: establishing the RLC entity corresponding to the DRB, the PDCP entity, and configuring the MAC/PHY/adaptation layer.

S1804: After receiving the completion of the Ur port RRC connection reconfiguration, the third communication device sends the G1 port RRC connection reconfiguration completion to the network device.

S1805: After receiving the G1-port RRC connection reconfiguration sent by the third communication device, the network device sends the G1-port RRC connection reconfiguration to the second communication device.

S1806: The second communication device performs wireless interface configuration according to the received G1-port RRC connection reconfiguration sent by the network device, and after the configuration is completed, sends the G1-port RRC connection reconfiguration completion to the network device.

In this step, the wireless interface configuration performed by the second communication device includes: creating a relay cell (that is, a cell managed by the second communication device), establishing a sub-link side RLC entity, and initializing MAC/PHY/suitability Configuration layer, initializing Ur port RRC layer, etc.

Wherein, in S1803 and S1806 in this example 1, the second communication device needs to obtain communication configuration information through S1800, and perform wireless interface configuration according to the communication configuration information.

S1800: The second communication device obtains communication configuration information.

Wherein, the communication configuration information includes any one or combination of the following:

Wireless resource configuration information of the first communication device, data buffered when the first communication device performs data transmission, the network identification of the fourth communication device, the context of the fourth communication device, and the quality of service QoS information of the fourth communication device , The data radio bearer ID DRB ID of the fourth communication device, and the radio resource configuration information of the fourth communication device. Wherein, the fourth communication device is a child node of the first communication device or the second communication device.

Wherein, the data buffered during data transmission by the first communication device may include, but is not limited to, the following content: data buffered during data transmission between the first communication device and the network device or the third communication device; Data buffered when the first communication device and the fourth communication device perform data transmission.

Optionally, the radio resource configuration information of the first communication device includes: RLC configuration information, PDCP configuration information, MAC configuration information, PHY configuration information, etc. corresponding to the DRB, and relay cell configuration information (for example, cell identification, cell Network identification resource pool, etc.), and RLC configuration information, MAC configuration information, PHY configuration information, etc. corresponding to the RLC on the sub-link side.

When the second communication device executes S1803, it can establish the RLC entity corresponding to the DRB according to the RLC configuration information, PDCP configuration information, MAC configuration information, PHY configuration information, etc. corresponding to the DRB in the radio resource configuration information. MAC/PHY/adaptation layer, etc.

When the second communication device performs S1806, it can create a relay cell according to the relay cell configuration information; and establish a sub-chain according to the RLC configuration information, MAC configuration information, PHY configuration information, etc. corresponding to the sub-link side RLC The roadside RLC entity initializes the MAC/PHY/adaptation layer, initializes the RRC layer of the Ur port, etc.

Optionally, when the second communication device is a relay device, when the second communication device creates a relay cell, it needs to be implemented according to the following information:

The network identifier of the fourth communication device, the context of the fourth communication device, the quality of service QoS information of the fourth communication device, the data radio bearer ID DRB ID of the fourth communication device, and the fourth communication device The wireless resource configuration information of the device.

Example 2: In the case where the first communication device and the second communication device are directly connected to the network device. Referring to FIG. 19, the process of establishing an RRC connection between the network device and the second communication device specifically includes:

S1901: The network device updates the routing table after updating the state configuration information of the communication device maintained by itself, and sends the RRC connection reconfiguration to the second communication device.

S1902: The second communication device performs wireless interface configuration according to the received RRC connection reconfiguration, and after the configuration is completed, sends the RRC connection reconfiguration complete to the network device.

In this step, the wireless interface configuration performed by the second communication device is the same as the description in S1803 in Example 1, which is repeated here.

S1903: After receiving the RRC connection reconfiguration sent by the second communication device, the network device sends the G1 port RRC connection reconfiguration to the second communication device.

S1904: The second communication device performs wireless interface configuration according to the received G1-port RRC connection reconfiguration sent by the network device, and after the configuration is completed, sends the G1-port RRC connection reconfiguration completion to the network device.

In this step, the wireless interface configuration performed by the second communication device is the same as the description in S1806 in Example 1, and will not be repeated here.

Similar to S1803 and S1806 in example 1, in S1902 and S1904 in this example 2, the second communication device needs to obtain communication configuration information through S1900, and perform wireless interface configuration according to the communication configuration information.

S1900: The second communication device obtains communication configuration information. In this example, the related description of the communication configuration information and the related description of the wireless interface configuration performed by the second communication device according to the communication configuration information can be referred to the above embodiments, which will not be repeated here.

Optionally, in this embodiment of the application, the second communication device may, but is not limited to, obtain communication configuration information through the following implementation manners (execute the foregoing S1800 or S1900):

Implementation manner 1: The second communication device obtains the communication configuration information from the first communication device.

Implementation manner 2: The second communication device obtains the communication configuration information from the network device.

Implementation manner 3: The second communication device obtains the communication configuration information from the third communication device.

Implementation manner 4: The second communication device obtains a first communication configuration information set from the network device, and obtains a second communication configuration information set from the first communication device.

Implementation manner 5: The second communication device obtains the first communication configuration information set from the third communication device, and obtains the second communication configuration information set from the first communication device.

In the foregoing implementation manners 4 and 5, the communication configuration information includes the first communication configuration information set and the second communication configuration information set.

The following describes each implementation manner through examples.

Implementation method one:

Example 1: In a case where the first communication device and the second communication device access the network device through the third communication device. Referring to FIG. 20, the process for the second communication device to obtain the communication configuration information specifically includes:

S2001: In the case that there is a communication connection between the first communication device and the second communication device, the first communication device whose status is the master communication device may periodically report to the first communication device during operation. 2. The communication device sends the latest communication configuration information.

After the second communication device receives the latest communication configuration information, it overwrites the previously received communication configuration information.

S2002: After the second communication device determines that its state is changed from the standby communication device to the master communication device, the integrity and real-timeness of the saved communication configuration information (consistent with the communication configuration information currently saved by the first communication device) Perform verification; when the second communication device determines that the saved communication configuration information is complete and real-time, it sends a complete communication configuration information indication to the network device through the third communication device. among them. The complete communication configuration information indication is used to notify that complete communication configuration information is stored in the first communication device.

In this way, the network device does not need to configure the communication configuration information in the subsequent process of configuring the wireless interface of the second communication device.

Example 2: In the case where the first communication device and the second communication device directly access the network device. The process for the second communication device to obtain the communication configuration information can also be seen in FIG. 20. The difference is that the communication configuration information sent by the second communication device to the network device indicates that the third communication device does not need to forward the communication configuration information. .

Example 3: In the case where the first communication device and the second communication device access the network device through the third communication device, and communication configuration information is stored in the third communication device. The process of acquiring the communication configuration information by the second communication device may also refer to FIG. 20. The difference is that the communication configuration information sent by the second communication device to the third network device is a complete indication. Wherein, the complete communication configuration information indication is used to notify that complete communication configuration information is stored in the first communication device. In this way, when the network device configures the wireless interface of the second communication device, there is no need for the third communication device to send communication configuration information to the second communication device.

Implementation method two:

Example 1: In the case where the first communication device and the second communication device access the network device through the third communication device. Referring to FIG. 21, the process for the second communication device to obtain the communication configuration information specifically includes:

S2101: The second communication device sends a communication configuration information request to the network device through the third communication device after determining that its state is changed from the standby communication device to the master communication device.

Optionally, when the first communication device in the state of the primary communication device periodically sends the latest communication configuration information to the second communication device during the operation, the second communication device may save the When the integrity and real-timeness of the communication configuration information (consistent with the communication configuration information currently saved by the first communication device) are checked and it is determined that the check fails, S2101 is executed.

S2102: After receiving the communication configuration information request, the network device sends the communication configuration information to the second communication device through the third communication device.

Example 2: In the case where the first communication device and the second communication device directly access the network device. The process of obtaining the communication configuration information by the second communication device may also refer to FIG. 21. The difference is that the third communication device does not need to forward the information when the second communication device exchanges information with the network device.

Implementation method three:

Example 1: In a case where the first communication device and the second communication device access the network device through the third communication device. Referring to FIG. 22, the process for the second communication device to obtain the communication configuration information specifically includes:

S2201: Same as S2101 in Example 1 in the third implementation mode, and will not be repeated here.

S2202: In a case where the latest communication configuration information is stored in the third communication device, the network device sends a configuration instruction to the third communication device. The configuration instruction is used to notify the third communication device to send the communication configuration information to the first communication device.

S2203: After receiving the configuration instruction, the third communication device sends the communication configuration information to the second communication device according to the configuration instruction.

Example 2:

In a case where the first communication device and the second communication device access the network device through the third communication device. Referring to FIG. 23, the process for the second communication device to obtain the communication configuration information specifically includes:

S2301: In a case where the latest communication configuration information is stored in the third communication device, the second communication device sends a communication configuration information request to the third communication device.

Optionally, the second communication device may execute S2301 after determining that its state is changed from the standby communication device to the master communication device; or it may perform S2301 after checking the integrity and real-timeness of the saved communication configuration information (with the first communication device). When the communication configuration information currently saved by the device is consistent), perform verification and determine that the verification fails, then execute S2301.

S2302: After receiving the communication configuration information request, the third communication device sends the communication configuration information to the second communication device.

Realization way four:

Example 1: In a case where the first communication device and the second communication device access the network device through the third communication device. Referring to FIG. 24, the process for the second communication device to obtain the communication configuration information specifically includes:

S2401: In the case that there is a communication connection between the first communication device and the second communication device, the first communication device whose status is the main communication device sends to the second communication device during operation. The second set of communication configuration information.

Optionally, the second communication configuration information set may be periodically backed up by the second communication device to the second communication device. Optionally, the second set of communication configuration information may also remain unchanged for a set duration.

S2402: After the second communication device determines that its state is changed from the standby communication device to the master communication device, and determines to locally save the second communication configuration information set, send to the network device through the third communication device Communication configuration information request.

The communication configuration information request is used to request the first communication configuration information set, the communication configuration information request includes a first indication or a second indication, and the first indication is used to indicate the first communication device The second communication configuration information set has been saved in the, and the second indication is used to indicate that the first communication configuration information set is not saved in the first communication device.

S2403: After receiving the communication configuration information request, the network device sends a message to the second communication device through the third communication device according to the first instruction or the second instruction in the communication configuration information request. Send the first set of communication configuration information.

Example 2: In the case where the first communication device and the second communication device directly access the network device. The process of obtaining the communication configuration information by the second communication device may also refer to FIG. 24. The difference is that the third communication device does not need to forward the information when the second communication device exchanges information with the network device.

Implementation mode five:

S2501 and S2502 are the same as S2401 and S2402 of Example 1 in Implementation Mode 4. For specific description, refer to the above description of S2401 and S2402, which will not be repeated here.

S2503: In a case where the latest communication configuration information is stored in the third communication device, the network device sends a configuration instruction to the third communication device. The configuration instruction is used to notify the third communication device to send the first communication configuration information set to the first communication device.

S2504: After receiving the configuration instruction, the third communication device sends the first communication configuration information set to the second communication device according to the configuration instruction.

Example 2: When the first communication device and the second communication device access the network device through the third communication device, and the third communication device saves the latest communication configuration information. Referring to FIG. 26, the process for the second communication device to obtain the communication configuration information specifically includes:

S2601 is the same as S2401 in Example 1 in the fourth implementation manner. For specific description, refer to the above description of S2401, which will not be repeated here.

S2602: The second communication device sends a communication configuration information request to the third communication device when it determines that the second communication configuration information set is stored locally after determining that its state is changed from the standby communication device to the master communication device.

Wherein, the communication configuration information request is used to request the first communication configuration information set, the communication configuration information request includes a first indication or a second indication, and the first indication is used to indicate the first communication device The second communication configuration information set has been saved in the, and the second indication is used to indicate that the first communication configuration information set is not saved in the first communication device.

S2603: After receiving the communication configuration information request, the third communication device sends first communication configuration information to the second communication device according to the first instruction or the second instruction in the communication configuration information set.

It should be noted that, in the embodiment of the present application, the above-mentioned state change triggering sub-process and the wireless interface configuration sub-process (including the process of obtaining communication configuration information) can be implemented during the RRC reconfiguration process performed by the communication system. For example, the network device may carry a state change indication or communication configuration information or configuration indication in the RRC connection reconfiguration. For another example, the second communication device may carry a communication configuration information request or a complete indication of the communication configuration information in the completion of the RRC connection reconfiguration.

In addition, it is worth noting that after the communication system completes the state change process of the second communication device, after the state change trigger condition is satisfied, the state change can be continued.

It should also be noted that, in the above description of the three processes included in the communication method provided in the embodiments of this application, the change from the main communication device to the standby communication device may mean that the state of the communication device is turned on from IAB or activated and changed to IAB. Turned off or not turned on or deactivated or not activated; changing from the standby communication device to the master communication device can mean that the state of the communication device is turned off or not turned on or deactivated or not activated to IAB turned on or activated; the status is master communication The device may refer to the state of the communication device being IAB on or active; the state of the standby communication device may refer to the state of the communication device being IAB off or inactive or deactivated or inactive; in addition, configuring the wireless interface may include configuring IAB. The identifier of the first communication device may be the IAB node identification code, IMSI, IMEI of the first communication device, or an identifier that uniquely identifies the IAB node, or other identifiers that can uniquely identify the first communication device. The identifier of the second communication device may be the IAB node identification code, IMSI, IMEI of the second communication device, or an identifier that uniquely identifies the IAB node, or other identifiers that can uniquely identify the second communication device. Ur interface refers to the wireless interface between a communication device and its parent node, such as the wireless interface between a UE and an IAB node. The G1 port refers to the wireless interface between the relay device and the network device, such as the wireless interface between the IAB node and the base station. The pairing relationship between the first communication device and the second communication device may refer to a connection relationship between the first communication device and the second communication device, for example, there is a wireless connection or a wired connection between the first communication device and the second communication device relationship. The sub-link of the communication device refers to the link between the communication device and the child node of the communication device. The parent link of a communication device refers to the link between the communication device and the parent node of the communication device. The corresponding relationship between the master and backup communication devices between the first communication device and the second communication device may refer to a pairing relationship or an association relationship between the first communication device and the second communication device.

From the above description of the three processes, it can be seen that in the communication method provided by the embodiment of the present application, the communication device in the standby communication device status can take over the transmission task of the corresponding main communication device at any time and continue to perform service transmission. In this way, the communication system can ensure the continuity of service transmission by changing the status of the main and standby communication devices of the communication device, and can also prevent the communication device from running for a long time, thereby prolonging the service life of the communication device, and further improving the transmission efficiency. Improve the user experience.

Based on the above embodiments, an embodiment of the present application also provides a communication device. The structure of the device is as shown in FIG. 27 and includes a communication unit 2701 and a processing unit 2702. The apparatus 2700 can be applied to the first communication device or the network device. Wherein, the first communication device and the network device may be applicable to the communication system shown in FIG. 1, and may implement the communication methods in the above figures.

When the apparatus 2700 is applied to a first communication device, optionally, the functions of each unit are as follows:

The communication unit 2701 is configured to send a first state change instruction to a network device, or obtain a first state change instruction, where the first state change instruction is used to notify: the state of the first communication device is changed by the standby communication device Communication equipment, or change from main communication equipment to backup communication equipment; and obtain communication configuration information;

The processing unit 2702 is configured to configure a wireless interface according to the communication configuration information.

Optionally, the functions of each unit can also be as follows:

The processing unit 2702 sends request information to the network device via the communication unit 2701, or receives a query instruction via the communication unit 2701; wherein the request information is used to request: the first communication device becomes the main communication device Device, the query instruction is used to instruct the first communication device to send pairing status information to the network device.

In a possible implementation manner, the request information includes: the access backhaul integrated node identification code of the first communication device and/or the access backhaul integrated node identification code of the second communication device; where There is a pairing relationship between the first communication device and the second communication device.

In a possible implementation manner, the pairing status information includes one or more of the following: an identifier of a communication device that has a pairing relationship with the first communication device, and a pairing relationship with the first communication device The IAB node identification code of the communication device, the C-RNTI of the communication device that has a pairing relationship with the first communication device, and the status indication of the communication device that has a pairing relationship with the first communication device. Wherein, the status indication is used to indicate that the status of the communication device that has a pairing relationship with the first communication device is the standby communication device or the main communication device.

In a possible implementation manner, the communication unit 2701 is specifically configured to: when acquiring the first state change indication:

Receiving the first state change indication sent by the network device or a third communication device, where the third communication device is the parent node of the first communication device; or

Receiving the first state change instruction sent by a second communication device, where the second communication device was a primary communication device or a backup communication device corresponding to the first communication device before the state of the first communication device was changed.

In a possible implementation manner, the communication unit 2701 is further configured to:

Before sending the first state change instruction to the network device, perform the following steps:

Sending status information to the network device or the third communication device, where the status information is used to notify: the status of the first communication device is the standby communication device or the main communication device; or

Receiving a status indication sent by the network device or a third communication device, where the status indication is used to indicate that the status of the first communication device is the standby communication device or the main communication device, and the third communication device is the first communication device; The parent node of the communication device; or

Receiving the communication device status configuration information sent by the network device or the third communication device, where the status of the first communication device in the communication device status configuration information is the standby communication device or the main communication device, the third communication device Is the parent node of the first communication device; or

Receive a second state change instruction sent by the network device or the third communication device, where the second state change instruction is used to notify: the state of the first communication device is changed from the main communication device to the standby communication device, or the standby The communication device is changed to the main communication device, and the third communication device is the parent node of the first communication device.

In a possible implementation, the communication unit 2701 is specifically configured to: when sending the status information to the network device:

Send the identification of the first communication device to the network device, where the identification of the first communication device includes an indication field, and the indication field is used to indicate that the status of the first communication device is a standby communication device or Main communication equipment; or

Sending instruction information of a second communication device to the network device, where the instruction information of the second communication device is used to indicate that the primary communication device or the backup communication device corresponding to the first communication device is the second communication device; or

Sending a status indication to the network device, where the status indication is used to indicate that the status of the first communication device is the standby communication device or the main communication device; or

The identification and status indication of the first communication device are sent to the network device, the status indication is used to indicate that the status is a standby communication device or a main communication device, and the identification of the first communication device is used to notify: the status Indicating that the indicated state is the state of the first communication device; or

Send a status indication and indication information of a second communication device to the network device, where the status indication is used to indicate that the status of the first communication device is a standby communication device, and the indication information of the second communication device is used to indicate all The main communication device corresponding to the first communication device is the second communication device; or

Send a status indication and indication information of a second communication device to the network device, where the status indication is used to indicate that the state of the first communication device is the master communication device, and the indication information of the second communication device is used to indicate all The standby communication device corresponding to the first communication device is the second communication device;

Wherein, the indication information of the second communication device is any one of the following: the identification of the second communication device, the network identification of the second communication device, the user identification of the second communication device, the second communication device The access of the communication equipment returns the integrated node identification code.

In a possible implementation manner, the communication unit 2701 is specifically configured to: when acquiring the communication configuration information:

Acquiring the communication configuration information from a second communication device, the second communication device being the master communication device corresponding to the first communication device before the state of the first communication device is changed; or

Receiving the communication configuration information from the network device or a third communication device, the third communication device being the parent node of the first communication device; or

Receive a first set of communication configuration information from the network device or a third communication device, and obtain the second set of communication configuration information from the second communication device, where the third communication device is the device of the first communication device Parent node; wherein the communication configuration information includes the first communication configuration information set and the second communication configuration information set.

After acquiring the communication configuration information from the second communication device, send a communication configuration information complete indication to the network device or a third communication device, where the communication configuration information complete indication is used to notify: the first communication device The complete communication configuration information is stored in the file, and the third communication device is the parent node of the first communication device.

Before receiving the communication configuration information from the network device or the third communication device, send a communication configuration information request to the network device or the third communication device.

Before receiving the first set of communication configuration information from the network device or the third communication device, after the processing unit 2702 determines that the second set of communication configuration information is stored locally, send it to the network device or the third communication device. 3. The communication device sends a request for communication configuration information;

In a possible implementation manner, the communication configuration information includes any one or a combination of the following:

Wireless resource configuration information of the second communication device, data buffered when the second communication device performs data transmission, the network identification of the fourth communication device, the context of the fourth communication device, and the quality of service QoS information of the fourth communication device , The data radio bearer ID DRB ID of the fourth communication device, and the radio resource configuration information of the fourth communication device;

Wherein, the second communication device is the master communication device corresponding to the first communication device before the state of the first communication device is changed, and the fourth communication device is the first communication device or the second communication device. The child node of the communication device.

In a possible implementation manner, the first state change indication includes any one or a combination of the following: the identification of the correspondence between the active and standby communication devices, the identification of the first communication device, and the network of the first communication device Identification, the status indication of the first communication device, the identification of the second communication device, the network identification of the second communication device, the status indication of the second communication device, and the reason for the status change;

Wherein, the second communication device is the main communication device or the standby communication device corresponding to the first communication device before the state of the first communication device is changed.

The communication unit 2701 is configured to obtain a first state change instruction, and the first state change instruction is used to notify: the state of the first communication device is changed from the standby communication device to the main communication device, or from the main communication device to the standby communication device. communication device;

The processing unit 2702 is configured to perform wireless interface configuration on the first communication device.

Optionally, the functions of each unit can also be as follows:

The processing unit 2702 receives a request message through the communication unit 2701 or sends a query instruction through the communication unit 2701; wherein the request information is used to request that the first communication device becomes the master communication device, and the query instruction Used to instruct the first communication device to send pairing status information to the network device.

Receiving the first state change indication from the first communication device; or

Receiving the first state change indication from a second communication device, the second communication device being the primary communication device or the backup communication device corresponding to the first communication device before the state change of the first communication device; or

Receiving the first state change indication from a third communication device, the third communication device being the parent node of the first communication device; or

Receiving the first state change instruction from the core network device; or

Obtain the first state change indication locally.

In a possible implementation manner, the communication unit 2701 is further configured to: before receiving the first state change indication, receive first state information from the first communication device or the third communication device, and the first state information A state information is used to notify: the state of the first communication device is the standby communication device or the main communication device, and the third communication device is the parent node of the first communication device; or

The communication unit 2701 is further configured to: before receiving the first state change instruction, receive second state information from a second communication device or a third communication device, where the second state information is used to notify: 2. The state of the communication device is the master communication device; the processing unit 2702 is further configured to: determine that the backup communication device corresponding to the second communication device is the first communication device according to the preset correspondence between the master and backup communication devices , The third communication device is the parent node of the first communication device; or

The communication unit 2701 is further configured to: before receiving the first state change instruction, receive second state information from a second communication device or a third communication device, where the second state information is used to notify: 2. The status of the second communication device is the standby communication device; the processing unit 2702 is further configured to: the network device determines that the main communication device corresponding to the second communication device is the A first communication device, the third communication device is the parent node of the first communication device; or

The communication unit 2701 is further configured to: before receiving the first state change instruction, send to the first communication device or the third communication device according to the communication device state configuration information stored locally or received from the core network device A status indication, the status indication is used to indicate that the status of the first communication device is a standby communication device or a main communication device, and the third communication device is the parent node of the first communication device; or

The communication unit 2701 is further configured to: before receiving the first state change instruction, send communication device state configuration information to a third communication device, wherein the first communication device is in the communication device state configuration information Is the standby communication device or the main communication device, and the third communication device is the parent node of the first communication device; or

The communication unit 2701 is further configured to: before receiving the first state change instruction, send communication device status configuration information to the first communication device, where the first communication device is in the communication device status configuration information The status is the standby communication device or the main communication device; or

The communication unit 2701 is further configured to: before receiving the first state change instruction, send a second state change instruction to the first communication device and/or the third communication device; the second state change instruction is used for Upon notification: the status of the first communication device is changed from the main communication device to the standby communication device, or the standby communication device is changed to the main communication device; the third communication device is the parent node of the first communication device; or

The communication unit 2701 is further configured to: before receiving the first state change instruction, receive a second state change instruction from a third communication device; the second state change instruction is used to notify: the first communication device The status of is changed from the main communication device to the standby communication device, or from the standby communication device to the main communication device; the third communication device is the parent node of the first communication device.

In a possible implementation manner, when the communication device receives the first state information from the first communication device, it is specifically configured to:

Receiving the identifier of the first communication device from the first communication device, wherein the identifier of the first communication device includes an indication field, and the indication field is used to indicate that the status of the first communication device is ready for communication Equipment or main communication equipment; or

Receiving instruction information of a second communication device from the first communication device, where the instruction information of the second communication device is used to indicate that the primary communication device or the backup communication device corresponding to the first communication device is the second communication device; or

Receiving a status indication from the first communication device, where the status indication is used to indicate that the status of the first communication device is a standby communication device or a main communication device; or

Receive from the first communication device the identity and status indication of the first communication device, the status indication is used to indicate that the status is the standby communication device or the main communication device, and the identity of the first communication device is used to notify: The state indicated by the state indication is the state of the first communication device; or

Receive a status indication and indication information of a second communication device from the first communication device, where the status indication is used to indicate that the status of the first communication device is the standby communication device or the main communication device, and the second communication device The indication information is used to indicate that the main communication device or the backup communication device corresponding to the first communication device is the second communication device; or

A status indication and indication information of a second communication device are received from the first communication device, the status indication is used to indicate that the state of the first communication device is the master communication device, and the indication information of the second communication device is used Indicating that the standby communication device corresponding to the first communication device is the second communication device;

Wherein, the instruction information of the second communication device is any one of the following:

The identification of the second communication device, the network identification of the second communication device, the user identification of the second communication device, and the access backhaul integrated node identification code of the second communication device.

After obtaining the first status change indication, perform the following steps:

Sending communication device state configuration information to a third communication device, where the third communication device is the parent node of the first communication device, and in the communication device state configuration information, the state of the first communication device is configured as the main communication device Equipment or communication equipment; or

Sending the first state change instruction to a third communication device, where the third communication device is a parent node of the first communication device.

In a possible implementation manner, the processing unit 2702 is specifically configured to: when performing wireless interface configuration on the first communication device:

Sending communication configuration information to the first communication device through the communication unit 2701; or

Sending a first configuration instruction to the third communication device through the communication unit 2701, where the first configuration instruction is used to notify the third communication device to send communication configuration information to the first communication device; or

Sending a second configuration instruction to the third communication device through the communication unit 2701, where the second configuration instruction is used to notify the third communication device to send the first communication configuration information set to the first communication device; or

Sending a first set of communication configuration information to the first communication device through the communication unit 2701;

Wherein, the communication configuration information includes the first communication configuration information set and the second communication configuration information set.

Before sending the communication configuration information to the first communication device, receiving a communication configuration information request from the first communication device.

Before sending the first configuration instruction to the third communication device, receive a communication configuration information request from the first communication device.

Before sending the second configuration instruction to the third communication device, receive a communication configuration request from the first communication device, where the communication configuration information request is used to request the first communication configuration information set, so The communication configuration information request includes a first indication or a second indication, the first indication is used to indicate that the second communication configuration information set has been saved in the first communication device, and the second indication is used to indicate all The first communication configuration information set is not saved in the first communication device.

Before sending the first communication configuration information set to the first communication device, receive a communication configuration request from the first communication device, wherein the communication configuration information request is used to request the first communication configuration information set , The communication configuration information request includes a first indication or a second indication, the first indication is used to indicate that the second communication configuration information set has been saved in the first communication device, and the second indication is used to Indicating that the first communication configuration information set is not saved in the first communication device.

A complete communication configuration information indication is received from the first communication device, where the complete communication configuration information indication is used to notify that complete communication configuration information is stored in the first communication device.

Radio resource configuration information of the second communication device, data buffered when the second communication device performs data transmission, the network identification of the fourth communication device, the context of the fourth communication device, and the quality of service QoS information of the fourth communication device , The data radio bearer ID DRB ID of the fourth communication device, and the radio resource configuration information of the fourth communication device;

Wherein, the second communication device is the master communication device of the first communication device before the state of the first communication device is changed, and the fourth communication device is the first communication device or the second communication device The child node of the device.

Wherein, the second communication device is the main communication device or the backup communication device corresponding to the first communication device before the state of the first communication device is changed.

It should be noted that the division of modules in the above embodiments of this application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods. In addition, each function in each embodiment of this application The unit can be integrated into one processing unit, or it can exist alone physically, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including a number of instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

Based on the above embodiments, the embodiments of the present application also provide a communication device, which is used to implement the communication methods in the above figures. Referring to FIG. 28, the communication device 2800 includes a transceiver 2801, a processor 2802, and a memory 2803. Wherein, the transceiver 2801, the processor 2802, and the memory 2803 are connected to each other.

Optionally, the transceiver 2801, the processor 2802, and the memory 2803 are connected to each other through a bus 2804. The bus 2804 may be a peripheral component interconnect standard (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used in FIG. 28, but it does not mean that there is only one bus or one type of bus.

The transceiver 2801 is used to receive and send data, and implement communication with other devices (for example, the child node, parent node, and network device of the communication device).

Optionally, the communication device 2800 further includes a communication interface 2805, which is used to establish a communication connection with another communication device deployed in the same location and used for changing the active/standby status.

The processor 2802 is configured to implement the communication methods in the above figures. For details, reference may be made to the description in the above embodiments, which will not be repeated here.

The memory 2803 is used to store program instructions and the like. Specifically, the program instructions may include program code, and the program code includes computer operation instructions. The memory 2803 may include random access memory (RAM), and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. The processor 2802 executes the program instructions stored in the memory 2803 to realize the above-mentioned functions, thereby realizing the communication method provided in the above-mentioned embodiment.

Based on the above embodiments, the embodiments of the present application also provide a network device, which is used to implement the communication methods in the above figures. Referring to FIG. 29, the network device 2900 includes: a transceiver 2901, a processor 2902, and a memory 2903. Wherein, the transceiver 2901, the processor 2902, and the memory 2903 are connected to each other.

Optionally, the transceiver 2901, the processor 2902, and the memory 2903 are connected to each other through a bus 2904. The bus 2904 may be a peripheral component interconnect standard (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used to represent in FIG. 29, but it does not mean that there is only one bus or one type of bus.

The transceiver 2901 is used to receive and send data to realize communication with other devices.

Optionally, the network device 2900 further includes a communication interface 2905 for implementing communication with core network devices.

The processor 2902 is configured to implement the communication methods in the above figures. For details, reference may be made to the description in the above embodiments, which will not be repeated here.

The memory 2903 is used to store program instructions and the like. Specifically, the program instructions may include program code, and the program code includes computer operation instructions. The memory 2903 may include random access memory (RAM), and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. The processor 2902 executes the program instructions stored in the memory 2903 to realize the aforementioned functions, thereby realizing the communication method provided by the aforementioned embodiment.

Based on the above embodiments, the embodiments of the present application also provide a computer program, which when the computer program runs on a computer, causes the computer to execute the communication method provided in the above embodiment.

Based on the above embodiments, the embodiments of the present application further provide a computer storage medium in which a computer program is stored. When the computer program is executed by a computer, the computer executes the communication method provided in the above embodiment.

Based on the above embodiments, an embodiment of the present application also provides a chip, which is used to read a computer program stored in a memory to implement the communication method provided in the above embodiment.

Based on the above embodiments, the embodiments of the present application provide a chip system including a processor for supporting a computer device to realize the functions related to the communication device or the network device in the above embodiment. In a possible design, the chip system further includes a memory, and the memory is used to store necessary programs and data of the computer device. The chip system can be composed of chips, or include chips and other discrete devices.

In summary, the embodiment of the present application provides a communication method. In this method, the communication device in the state of the standby communication device can take over the transmission task of the corresponding main communication device at any time and continue to perform service transmission. In this way, the communication system can ensure the continuity of service transmission by changing the status of the main and standby communication devices of the communication device, and can also prevent the communication device from running for a long time, thereby prolonging the service life of the communication device, and further improving the transmission efficiency. Improve the user experience.

Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

This application is described with reference to flowcharts and/or block diagrams of methods, equipment (systems), and computer program products according to the embodiments of this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the scope of the embodiments of the present application. In this way, if these modifications and variations of the embodiments of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

A communication method, characterized in that it comprises:

The first communication device sends a first state change instruction to the network device, or obtains a first state change instruction, where the first state change instruction is used to notify: the state of the first communication device is changed from the standby communication device to the master communication device , Or change from main communication equipment to backup communication equipment; or

The first communication device sends request information to the network device, where the request information is used to request: the first communication device becomes the master communication device; or

The first communication device receives a query instruction, where the query instruction is used to instruct the first communication device to send pairing status information to a network device.
The method according to claim 1, wherein the acquiring, by the first communication device, the first state change indication comprises:

The first communication device receives the first state change instruction sent by the network device or a third communication device, and the third communication device is the parent node of the first communication device; or

The first communication device receives the first state change instruction sent by a second communication device, and the second communication device is the master communication device corresponding to the first communication device before the state change of the first communication device Or prepare communication equipment.
The method according to claim 1 or 2, wherein before the first communication device sends the first state change indication to the network device, the method further comprises:

The first communication device sends status information to the network device or the third communication device, where the status information is used to notify: the status of the first communication device is the standby communication device or the main communication device; or

The first communication device receives a status indication sent by the network device or a third communication device, where the status indication is used to indicate that the status of the first communication device is a standby communication device or a main communication device, and the third communication device The device is the parent node of the first communication device; or

Receiving, by the first communication device, communication device status configuration information sent by the network device or a third communication device, where the status of the first communication device in the communication device status configuration information is the standby communication device or the main communication device, The third communication device is the parent node of the first communication device; or

The first communication device receives a second state change instruction sent by the network device or the third communication device, and the second state change instruction is used to notify: the state of the first communication device is changed from the main communication device to the standby The communication device, or the standby communication device is changed to the main communication device, and the third communication device is the parent node of the first communication device.
The method according to claim 3, wherein the sending of the status information by the first communication device to the network device comprises:

The first communication device sends the identity of the first communication device to the network device, where the identity of the first communication device includes an indication field, and the indication field is used to indicate the identity of the first communication device The status is the standby communication device or the main communication device; or

The first communication device sends instruction information of the second communication device to the network device, where the instruction information of the second communication device is used to indicate that the primary communication device or the backup communication device corresponding to the first communication device is the Second communication device; or

The first communication device sends a status indication to the network device, where the status indication is used to indicate that the status of the first communication device is a standby communication device or a main communication device; or

The first communication device sends the identification and status indication of the first communication device to the network device, where the status indication is used to indicate that the status is the standby communication device or the main communication device, and the identification of the first communication device is used In the notification: the state indicated by the state indication is the state of the first communication device; or

The first communication device sends a status indication and indication information of a second communication device to the network device, where the status indication is used to indicate that the status of the first communication device is a standby communication device, and the status of the second communication device is The indication information is used to indicate that the primary communication device corresponding to the first communication device is the second communication device; or

The first communication device sends a status indication and indication information of a second communication device to the network device, where the status indication is used to indicate that the status of the first communication device is the master communication device, and the status of the second communication device is The indication information is used to indicate that the standby communication device corresponding to the first communication device is the second communication device;

Wherein, the indication information of the second communication device is any one of the following: the identification of the second communication device, the network identification of the second communication device, the user identification of the second communication device, the second communication device The access of the communication equipment returns the integrated node identification code.
The method according to claim 1, wherein the request information comprises: the access backhaul integrated node identification code of the first communication device and/or the access backhaul integrated node of the second communication device Identification code; wherein there is a pairing relationship between the first communication device and the second communication device.
A communication method, characterized in that it comprises:

The network device obtains a first state change instruction, where the first state change instruction is used to notify: the state of the first communication device is changed from a standby communication device to a main communication device, or from a main communication device to a standby communication device; or

The network device receives request information, where the request information is used to request: the first communication device becomes the master communication device; or

The network device sends a query instruction, where the query instruction is used to instruct the first communication device to send pairing status information to the network device.
The method according to claim 6, wherein the obtaining the first state change indication by the network device comprises:

The network device receives the first state change indication from the first communication device; or

The network device receives the first state change instruction from a second communication device, and the second communication device is the primary communication device or standby communication device corresponding to the first communication device before the state change of the first communication device Equipment; or

The network device receives the first state change indication from a third communication device, the third communication device being the parent node of the first communication device; or

The network device receives the first state change instruction from the core network device; or

The network device obtains the first state change indication locally.
The method according to claim 6 or 7, characterized in that, before the network device receives the first state change indication, the method further comprises:

The network device receives first state information from the first communication device or the third communication device, and the first state information is used to notify: the state of the first communication device is the standby communication device or the main communication device, so The third communication device is the parent node of the first communication device; or

The network device receives second state information from the second communication device or the third communication device, and the second state information is used to notify: the state of the second communication device is the master communication device, and the network device is based on a preset The corresponding relationship between the main and standby communication devices, determining that the standby communication device corresponding to the second communication device is the first communication device, and the third communication device is the parent node of the first communication device; or

The network device receives second status information from a second communication device or a third communication device, where the second status information is used to notify: the status of the second communication device is a standby communication device, and the network device is preset The main communication device corresponding to the second communication device is determined to be the first communication device, and the third communication device is the parent node of the first communication device; or

The network device sends a status indication to the first communication device or the third communication device according to the communication device status configuration information stored locally or received from the core network device, and the status indication is used to indicate the status of the first communication device The status is the standby communication device or the main communication device, and the third communication device is the parent node of the first communication device; or

The network device sends communication device status configuration information to a third communication device, where the status of the first communication device in the communication device status configuration information is the standby communication device or the main communication device, and the third communication device Is the parent node of the first communication device; or

The network device sends communication device state configuration information to the first communication device, where the state of the first communication device in the communication device state configuration information is the standby communication device or the main communication device; or

The network device sends a second state change instruction to the first communication device and/or the third communication device; the second state change instruction is used to notify: the state of the first communication device is changed from the main communication device to Standby communication equipment, or change from standby communication equipment to primary communication equipment; the third communication equipment is the parent node of the first communication equipment; or

The network device receives a second state change instruction from the third communication device; the second state change instruction is used to notify: the state of the first communication device is changed from the main communication device to the backup communication device, or the backup communication device Change to the main communication device; the third communication device is the parent node of the first communication device.
The method according to claim 8, wherein the receiving, by the network device, the first state information from the first communication device comprises:

The network device receives the identification of the first communication device from the first communication device, wherein the identification of the first communication device includes an indication field, and the indication field is used to indicate the identification of the first communication device The status is the standby communication device or the main communication device; or

The network device receives the instruction information of the second communication device from the first communication device, where the instruction information of the second communication device is used to indicate that the primary communication device or the backup communication device corresponding to the first communication device is the second Communication equipment; or

The network device receives a status indication from the first communication device, where the status indication is used to indicate that the status of the first communication device is a standby communication device or a main communication device; or

The network device receives the identification and status indication of the first communication device from the first communication device, where the status indication is used to indicate that the status is the standby communication device or the main communication device, and the identification of the first communication device is used In the notification: the state indicated by the state indication is the state of the first communication device; or

The network device receives a status indication and indication information of a second communication device from the first communication device, where the status indication is used to indicate that the status of the first communication device is a standby communication device or a main communication device, and the first communication device 2. The instruction information of the communication device is used to indicate that the main communication device or the standby communication device corresponding to the first communication device is the second communication device; or

The network device receives a status indication and indication information of a second communication device from the first communication device, where the status indication is used to indicate that the status of the first communication device is the master communication device, and the status of the second communication device is The indication information is used to indicate that the standby communication device corresponding to the first communication device is the second communication device;

Wherein, the instruction information of the second communication device is any one of the following:

The identification of the second communication device, the network identification of the second communication device, the user identification of the second communication device, and the access backhaul integrated node identification code of the second communication device.
9. The method according to any one of claims 6-9, wherein after the network device obtains the first state change indication, the method further comprises:

The network device sends communication device state configuration information to a third communication device, where the third communication device is the parent node of the first communication device, and the state of the first communication device in the communication device state configuration information Configured as the main communication device or standby communication device; or

The network device sends the first state change instruction to a third communication device, and the third communication device is a parent node of the first communication device.
The method according to claim 6, wherein the request information comprises: the access backhaul integrated node identification code of the first communication device and/or the access backhaul integrated node of the second communication device Identification code; wherein there is a pairing relationship between the first communication device and the second communication device.
A communication device, which is applied to a first communication device, and is characterized in that it comprises:

Communication unit for receiving and sending data;

The processing unit is configured to send a first state change instruction to a network device through the communication unit, or obtain a first state change instruction, where the first state change instruction is used to notify: the state of the first communication device is communicated with The device is changed to the main communication device, or the main communication device is changed to the standby communication device; or used to send request information to the network device through the communication unit, and the request information is used to request: the first communication device becomes the main communication device Device; or used to receive a query instruction through the communication unit, where the query instruction is used to instruct the first communication device to send pairing status information to a network device.
The device according to claim 12, wherein the communication unit is specifically configured to: when acquiring the first state change indication:

Receiving the first state change indication sent by the network device or a third communication device, where the third communication device is the parent node of the first communication device; or

Receiving the first state change instruction sent by a second communication device, where the second communication device was a primary communication device or a backup communication device corresponding to the first communication device before the state of the first communication device was changed.
The device according to claim 12 or 13, wherein the communication unit is further configured to:

Before sending the first state change instruction to the network device, perform the following steps:

Sending status information to the network device or the third communication device, where the status information is used to notify: the status of the first communication device is the standby communication device or the main communication device; or

Receiving a status indication sent by the network device or a third communication device, where the status indication is used to indicate that the status of the first communication device is the standby communication device or the main communication device, and the third communication device is the first communication device; The parent node of the communication device; or

Receiving the communication device status configuration information sent by the network device or the third communication device, where the status of the first communication device in the communication device status configuration information is the standby communication device or the main communication device, the third communication device Is the parent node of the first communication device; or

Receive a second state change instruction sent by the network device or the third communication device, where the second state change instruction is used to notify: the state of the first communication device is changed from the main communication device to the standby communication device, or the standby communication device The communication device is changed to the main communication device, and the third communication device is the parent node of the first communication device.
The apparatus according to claim 14, wherein the communication unit is specifically configured to: when sending the status information to the network device:

Send the identification of the first communication device to the network device, where the identification of the first communication device includes an indication field, and the indication field is used to indicate that the status of the first communication device is a standby communication device or Main communication equipment; or

Sending instruction information of a second communication device to the network device, where the instruction information of the second communication device is used to indicate that the primary communication device or the backup communication device corresponding to the first communication device is the second communication device; or

Sending a status indication to the network device, where the status indication is used to indicate that the status of the first communication device is the standby communication device or the main communication device; or

The identification and status indication of the first communication device are sent to the network device, the status indication is used to indicate that the status is a standby communication device or a main communication device, and the identification of the first communication device is used to notify: the status Indicating that the indicated state is the state of the first communication device; or

Send a status indication and indication information of a second communication device to the network device, where the status indication is used to indicate that the status of the first communication device is a standby communication device, and the indication information of the second communication device is used to indicate all The main communication device corresponding to the first communication device is the second communication device; or

Send a status indication and indication information of a second communication device to the network device, where the status indication is used to indicate that the state of the first communication device is the master communication device, and the indication information of the second communication device is used to indicate all The standby communication device corresponding to the first communication device is the second communication device;

Wherein, the indication information of the second communication device is any one of the following: the identification of the second communication device, the network identification of the second communication device, the user identification of the second communication device, the second communication device The access of the communication equipment returns the integrated node identification code.
The apparatus according to claim 12, wherein the request information comprises: the access backhaul integrated node identification code of the first communication device and/or the access backhaul integrated node of the second communication device Identification code; wherein there is a pairing relationship between the first communication device and the second communication device.
A communication device applied to network equipment, characterized in that it includes:

Communication unit for receiving and sending data;

The processing unit is configured to obtain a first state change instruction through the communication unit, and the first state change instruction is used to notify: the state of the first communication device is changed from the standby communication device to the main communication device or the main communication device The device is changed to a standby communication device; or it is used to receive request information through the communication unit, and the request information is used to request: the first communication device becomes the main communication device; or it is used to send a query instruction through the communication unit, The query instruction is used to instruct the first communication device to send pairing status information to the network device.
The device according to claim 17, wherein the communication unit is specifically configured to: when acquiring the first state change indication:

Receiving the first state change indication from the first communication device; or

Receiving the first state change indication from a second communication device, the second communication device being the primary communication device or the backup communication device corresponding to the first communication device before the state change of the first communication device; or

Receiving the first state change indication from a third communication device, the third communication device being the parent node of the first communication device; or

Receiving the first state change instruction from the core network device; or

Obtain the first state change indication locally.
The device of claim 17 or 18, wherein:

The communication unit is further configured to: before receiving the first state change instruction, receive first state information from the first communication device or a third communication device, and the first state information is used to notify: the The status of the first communication device is the standby communication device or the main communication device, and the third communication device is the parent node of the first communication device; or

The communication unit is further configured to: before receiving the first state change instruction, receive second state information from a second communication device or a third communication device, where the second state information is used to notify: the second The state of the communication device is the master communication device; the processing unit is further configured to: determine that the backup communication device corresponding to the second communication device is the first communication device according to the preset correspondence between the master and backup communication devices, so The third communication device is the parent node of the first communication device; or

The communication unit is further configured to: before receiving the first state change instruction, receive second state information from a second communication device or a third communication device, where the second state information is used to notify: the second The state of the communication device is the standby communication device; the processing unit is further configured to: the network device determines that the main communication device corresponding to the second communication device is the first communication device according to the preset correspondence between the main and standby communication devices. Communication device, the third communication device is the parent node of the first communication device; or

The communication unit is further configured to: before receiving the first state change instruction, send the state to the first communication device or the third communication device according to the communication device state configuration information stored locally or received from the core network device Indicating that the status indication is used to indicate that the status of the first communication device is a standby communication device or a main communication device, and the third communication device is the parent node of the first communication device;

The communication unit is further configured to: before receiving the first state change instruction, send communication device status configuration information to a third communication device, wherein the status configuration information of the first communication device is The status is the standby communication device or the main communication device, and the third communication device is the parent node of the first communication device; or

The communication unit is further configured to: before receiving the first state change instruction, send communication device status configuration information to the first communication device, and the status configuration information of the first communication device in the communication device status configuration information The status is the standby communication device or the main communication device; or

The communication unit is further configured to: before receiving the first state change instruction, send a second state change instruction to the first communication device and/or the third communication device; the second state change instruction is used for Notification: The status of the first communication device is changed from the main communication device to the standby communication device, or the standby communication device is changed to the main communication device; the third communication device is the parent node of the first communication device; or

The communication unit is further configured to: before receiving the first state change instruction, receive a second state change instruction from a third communication device; the second state change instruction is used to notify: The state is changed from the main communication device to the standby communication device, or the standby communication device is changed to the main communication device; the third communication device is the parent node of the first communication device.
The apparatus according to claim 19, wherein the communication device is specifically configured to: when receiving the first status information from the first communication device:

Receiving the identifier of the first communication device from the first communication device, wherein the identifier of the first communication device includes an indication field, and the indication field is used to indicate that the status of the first communication device is ready for communication Equipment or main communication equipment; or

Receiving instruction information of a second communication device from the first communication device, where the instruction information of the second communication device is used to indicate that the primary communication device or the backup communication device corresponding to the first communication device is the second communication device; or

Receiving a status indication from the first communication device, where the status indication is used to indicate that the status of the first communication device is a standby communication device or a main communication device; or

Receive from the first communication device the identity and status indication of the first communication device, the status indication is used to indicate that the status is the standby communication device or the main communication device, and the identity of the first communication device is used to notify: The state indicated by the state indication is the state of the first communication device; or

Receive a status indication and indication information of a second communication device from the first communication device, where the status indication is used to indicate that the status of the first communication device is the standby communication device or the main communication device, and the second communication device The indication information is used to indicate that the main communication device or the backup communication device corresponding to the first communication device is the second communication device; or

A status indication and indication information of a second communication device are received from the first communication device, the status indication is used to indicate that the state of the first communication device is the master communication device, and the indication information of the second communication device is used Indicating that the standby communication device corresponding to the first communication device is the second communication device;

Wherein, the instruction information of the second communication device is any one of the following:

The identification of the second communication device, the network identification of the second communication device, the user identification of the second communication device, and the access backhaul integrated node identification code of the second communication device.
The device according to any one of claims 17-20, wherein the communication unit is further configured to:

After obtaining the first status change indication, perform the following steps:

Sending communication device state configuration information to a third communication device, where the third communication device is the parent node of the first communication device, and in the communication device state configuration information, the state of the first communication device is configured as the main communication device Equipment or communication equipment; or

Sending the first state change instruction to a third communication device, where the third communication device is a parent node of the first communication device.
The apparatus according to claim 17, wherein the request information comprises: the access backhaul integrated node identification code of the first communication device and/or the access backhaul integrated node of the second communication device Identification code; wherein there is a pairing relationship between the first communication device and the second communication device.
A communication device, characterized by comprising:

Memory, used to store program instructions;

Transceiver, used to receive and send data;

The processor is configured to call the program instructions stored in the memory, and execute the method according to any one of claims 1-5 through the transceiver.
A network device, characterized by comprising:

Memory, used to store program instructions;

Transceiver, used to receive and send data;

The processor is configured to call the program instructions stored in the memory, and execute the method according to any one of claims 6-11 through the transceiver.
A computer program, characterized in that when the computer program runs on a computer, the computer is caused to execute the method according to any one of claims 1-11.
A computer storage medium, characterized in that a computer program is stored in the computer storage medium, and when the computer program is executed by a computer, the computer is caused to execute the method according to any one of claims 1-11.
A chip, characterized in that the chip is used to read a computer program stored in a memory, and execute the method according to any one of claims 1-11.