WO2014180328A1

WO2014180328A1 - Relay communication method, device and system

Info

Publication number: WO2014180328A1
Application number: PCT/CN2014/077052
Authority: WO
Inventors: 王晓娜; 曾昆; 李铕
Original assignee: 华为技术有限公司
Priority date: 2013-05-08
Filing date: 2014-05-08
Publication date: 2014-11-13
Also published as: CN104144521A; CN104144521B

Abstract

The embodiments of the present invention provide a relay communication method, device and system. The method comprises: sending a first relay establishment instruction to a first equipment to which a first base station provides a service; sending a second relay establishment instruction to a second user equipment to which a second base station provides a service; and according to the first relay establishment instruction and the second relay establishment instruction, establishing a relay link for the first equipment to perform a communication service with the second base station via the second user equipment. The solution realizes that when the first equipment in an area covered by the first base station cannot perform a communication service satisfying a service demand via the first base station and cannot access to other base station due to reasons such as too long a distance, a relay base station and a relay user equipment are determined, and the service is provided for the first equipment via the relay user equipment and the relay base station, thereby improving the frequency spectrum utilization rate, and balancing loads of various cell services.

Description

Relay communication method, device and system

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a relay communication method, apparatus, and system. Background technique

In the wide coverage scenario, in order to implement unified management of the base stations in the coverage area, a centralized control entity (controller) is introduced, and the controller controls the management of each base station in the area, such as user switching, user interference, and load coordination. Radio Resource Management (RRM) function, such as encryption and authentication; In the suburban coverage scenario, there are few suburban and rural user data in the initial network. In order to save the cost of laying the network, the relay is used (hereinafter referred to as Relay). The suburban base station is connected to the ordinary base station to realize communication transmission.

However, for a wide coverage scenario, when the link between the base station and the user equipment of the local cell cannot provide services for the user equipment, for example, if the air interface resource is insufficient or the base station fails, the user equipment cannot communicate; When the link between the suburban base station and the relay cannot provide services, such as a trunk failure or the transmission capability between the relay and the suburban base station cannot meet the new service requirements, the suburban base station will not be able to communicate. SUMMARY OF THE INVENTION Embodiments of the present invention provide a relay communication method, apparatus, and system, to solve a problem that when a user equipment cannot obtain a communication service that satisfies a service requirement through a base station of the cell, or when a suburban base station cannot obtain a communication service of a service demand through a relay, The problem that the user equipment or the suburban base station cannot communicate.

In a first aspect, an embodiment of the present invention provides a relay communication method, including:

Transmitting, by the first device that is served by the first base station, a first relay establishment instruction;

Transmitting, by the second user equipment that is served by the second base station, a second relay establishment instruction; establishing, according to the first relay establishment instruction and the second relay establishment instruction, that the first device passes the second A relay link in which the user equipment communicates with the second base station.

In a first possible implementation manner of the first aspect, the establishing is performed according to the first relay Directing an instruction with the second relay to establish a relay link that the first device performs communication service with the second base station by using the second user equipment, according to the first relay service parameter, a second relay service parameter, establishing a relay link between the first device and the relay user equipment and the relay base station, including:

Establishing, according to the first relay service parameter relay establishment instruction and the second relay service parameter establishment instruction, based on the relaying the second base station, the second relay user equipment, and the first device Relay link; or,

Or establishing, according to the first relay establishment instruction relay service parameter and the second relay establishment instruction relay service parameter, based on the first base station, the relay second base station, and the second middle Following the user equipment, the relay link of the first device.

With the first aspect or the first possible implementation of the first aspect, in a second possible implementation manner of the first aspect, the first device that sends the service to the first base station sends the first Before the relay establishes the command, it also includes:

Determining whether a relay service needs to be provided for the first device under the first base station.

With reference to the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the determining whether the first device in the first base station needs to be relayed Services, including:

If it is determined that the air interface resource of the first base station is insufficient, the first user equipment to be accessed by the first base station is required to provide an inter-cell relay service; or

If it is determined that the first base station is unable to provide a service service that meets a service requirement, the first user equipment of the first base station needs to provide an inter-cell relay service; or, if the first If a link failure occurs between the base station and the suburban base station, a relay service needs to be provided for the suburban base station.

With reference to the second possible implementation of the first aspect, in a fourth possible implementation manner of the first aspect, the determining whether the first device in the first base station needs to be relayed Services, including:

If the inter-cell relay service request sent by the first base station is received, the inter-cell relay service needs to be provided for the first device in the first base station; or

If the service upgrade request including the service requirement sent by the first base station is received, the sub-base station needs to be provided with a relay service, where the service upgrade request is sent by the first base station after receiving the sub-base station. Sent when the business request. With the fourth possible implementation of the first aspect, in a fifth possible implementation manner of the first aspect, the inter-cell relay service request includes:

The identifier of the first base station, the identifier of the first device, the location information of the first device, the service requirement information of the first device, the service type of the first device, the first The relay service request of the device triggers at least one of the causes.

With reference to the first aspect, any one of the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, Before the second user equipment that is served by the second base station sends the second relay establishment instruction, the method includes:

Determining a second base station capable of providing a relay service for the first device and a second user equipment under the second base station.

With reference to the sixth possible implementation of the first aspect, in a seventh possible implementation manner of the first aspect, the determining, by the first device, the second base station and the The second user equipment under the second base station includes:

Collecting, by the neighboring base station of the first base station, and the relay service information of the user equipment under the neighboring base station;

Determining, according to the relay service information, a first neighboring base station capable of providing a relay service among the neighboring base stations of the first base station, and a first relay user capable of providing a relay service under the first neighboring base station Equipment

And performing measurement on the communication between the first user equipment and the first relay user equipment in the first neighboring base station, and acquiring a measurement result;

And determining, according to the measurement result, the second base station and the second user equipment that provide the inter-cell relay service for the first device.

With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the collecting, acquiring the neighboring base station of the first base station, and the neighboring base station The relay service information of the user equipment, including:

And collecting at least one of cell location information, cell coverage information, cell spectrum resource usage, cell user access success rate, and cell online user number of the neighboring base station of the first base station;

And acquiring, by the user equipment, the at least one of the relay capability, the location, the power, the existing service, and the mobile.

In combination with the seventh or eighth possible implementation of the first aspect, nine in the first aspect In a possible implementation manner, the measuring, by using the first user equipment and the first relay user equipment in the first neighboring base station, to obtain a measurement result, includes:

Sending a measurement configuration message to the first user equipment and the first relay user equipment, where the measurement configuration message includes: at least one of a measurement frequency point, a measurement gap, a measurement result report identifier, a report format, and a measurement identifier. Information

And receiving the measurement result sent by the first user equipment and the first relay user equipment, where the measurement result includes: at least one of the measured signal strengths.

With reference to the first aspect, any one of the first to the ninth possible implementation manners of the first aspect, in a tenth possible implementation manner of the first aspect, The relay establishment instruction includes at least one of an identifier of the second user equipment, a relay frequency of the second user equipment, and a relay bandwidth of the second user equipment, where the second The establishing instruction includes at least one of an identifier of the first device, a relay frequency point of the first device, and a relay bandwidth of the first device.

With reference to the first aspect, any one of the first to the tenth possible implementation manners of the first aspect, in an eleventh possible implementation manner of the first aspect, The second user equipment is at least two second user equipments, and the method further includes:

The offloading ratio indication information is sent to the gateway device and/or the base station, so that the gateway device and/or the base station divides the relay traffic of the at least two second user equipment according to the offloading ratio indication information.

In a second aspect, an embodiment of the present invention provides a relay communication device, including:

a first sending module, configured to send a first relay setup instruction to a first device that is served by the first base station;

a second sending module, configured to send a second relay establishment instruction to the second user equipment served by the second base station;

a establishing module, configured to establish, according to the first relay establishment instruction and the second relay establishment instruction, a relay chain that performs communication service between the first device and the second base station by using the second user equipment road.

In a first possible implementation manner of the second aspect, the establishing module is specifically configured to: establish, according to the first relay establishment instruction, the second relay establishment instruction, based on the second base station, The second user equipment, the relay link of the first device; or

Establishing an instruction based on the first relay establishment instruction and the second relay establishment instruction a base station, the second base station, the second user equipment, and a relay link of the first device. With reference to the second aspect, or the first possible implementation of the second aspect, in a second possible implementation of the second aspect, the apparatus further includes:

And a first determining module, configured to determine whether a relay service needs to be provided for the first device under the first base station.

With reference to the second possible implementation of the second aspect, in a third possible implementation manner of the second aspect, the first determining module is specifically configured to:

With reference to the second possible implementation of the second aspect, in a fourth possible implementation manner of the second aspect, the first determining module is further configured to: when receiving the cell sent by the first base station The inter-relay service request is required to provide an inter-cell relay service for the first device under the first base station; or

And receiving, by the first base station, a service upgrade request that includes a service requirement, where the sub-base station needs to provide a relay service, where the service upgrade request is sent by the first base station to the sub-base station. Sent when a new business request is added.

With reference to the fourth possible implementation of the second aspect, in a fifth possible implementation manner of the second aspect, the inter-cell relay service request includes:

With reference to the second aspect, the first to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, the device further includes:

And a second determining module, configured to determine a second base station that can provide a relay service for the first device, and a second user equipment that is configured by the second base station.

With reference to the sixth possible implementation of the second aspect, in a seventh possible implementation of the second aspect, the second determining module includes: a collecting unit, configured to collect and obtain relay service information of a neighboring base station of the first base station and a user equipment of the neighboring base station;

a first determining unit, configured to determine, according to the relay service information, a first neighboring base station that can provide a relay service in a neighboring base station of the first base station, and a relay that can be provided under the first neighboring base station The first relay user equipment of the service;

a measuring unit, configured to measure communication between the first user equipment and a first relay user equipment under the first neighboring base station, to obtain a measurement result;

And a second determining unit, configured to determine, according to the measurement result, a relay base station and a relay user equipment that provide an inter-cell relay service for the first device.

With reference to the seventh possible implementation of the second aspect, in the eighth possible implementation manner of the second aspect, the collecting unit is specifically configured to:

With reference to the seventh or the eighth possible implementation of the second aspect, in the ninth possible implementation manner of the second aspect, the measuring unit is specifically configured to:

With reference to the second aspect, any one of the first to the ninth possible implementation manners of the second aspect, in a tenth possible implementation manner of the second aspect, The relay establishment instruction includes at least one of an identifier of the second user equipment, a relay frequency of the second user equipment, and a relay bandwidth of the second user equipment, where the second The establishing instruction includes at least one of an identifier of the first device, a relay frequency point of the first device, and a relay bandwidth of the first device.

With reference to the second aspect, any one of the first to the tenth possible implementation manners of the second aspect, in an eleventh possible implementation manner of the second aspect, Loading The return includes:

a third sending module, configured to: if the relay user equipment is at least two second user equipments, send the shunting ratio indication information to the gateway device and/or the base station, so that the gateway device and/or the base station according to the The split ratio indication information is used to offload the relay traffic of the at least two second user equipments.

In a third aspect, an embodiment of the present invention provides a communication system, including at least two base stations, where at least one of the at least two base stations includes the first aspect, the second aspect, and the second The relay communication device of any one of the sixth to eleventh possible implementations of the second aspect.

In a fourth aspect, an embodiment of the present invention provides a communication system, including a controller and at least two base stations, where the controller includes the relay communication device as described above.

The relay communication method, device, and system provided by the embodiment of the present invention, the base station or the centralized control entity establishes a relay link for the first device to communicate with the second base station by using the second user equipment as the relay user equipment, so that the The first device may obtain the service service from the second user equipment by using the second user equipment, and when the first device in the area covered by the first base station cannot obtain the communication service that meets the service requirement by using the first base station, The second base station and the second user equipment provide service services for the first device by using the second user equipment and the second base station, thereby improving spectrum utilization and balancing service load of each cell. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.

1 is a flowchart of Embodiment 1 of a relay communication method according to the present invention;

2A is a schematic diagram of a wide coverage scenario of a second embodiment of a relay communication method according to the present invention;

2B is a first signaling diagram of the scenario shown in FIG. 2A;

2C is a second signaling diagram of the scenario shown in FIG. 2A;

3A is a schematic diagram of an LTE-Hi communication scenario according to Embodiment 3 of the relay communication method of the present invention; FIG. 3B is a first signaling diagram of the scenario shown in FIG. 3A;

4A is a schematic diagram of a suburban coverage scenario of a third embodiment of a relay communication method according to the present invention; 4B is a signaling diagram of the scenario shown in FIG. 4A;

FIG. 5 is a schematic structural diagram of Embodiment 1 of a relay communication apparatus according to the present invention; FIG.

6 is a schematic structural diagram of Embodiment 2 of a relay communication apparatus according to the present invention;

FIG. 7 is a schematic structural diagram of Embodiment 3 of a relay communication apparatus according to the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

FIG. 1 is a flowchart of Embodiment 1 of a relay communication method according to the present invention. The execution entity of this embodiment is a base station or a centralized control entity. As shown in FIG. 1, the relay communication method of this embodiment may include:

101. Send a first relay establishment instruction to a first device that is served by the first base station.

The first device is a device that is served by the first base station, and may be a user equipment, for example, a mobile phone, a smart TV with Internet access function, or the like, or may be a suburban base station that performs communication with the first base station by relaying. In general, there may be multiple user equipments or suburban base stations under the first base station. For the sake of clarity, a device that needs to provide a relay service is referred to as a first device. In this step, when the base station or the centralized control entity determines that the relay service needs to be provided for the first device under the first base station, the first relay establishment instruction is sent to the first device.

102. Send a second relay establishment instruction to a second user equipment that is served by the second base station. The second user equipment refers to a user equipment that can act as a relay, which can act as a relay for communication between the first device and the second base station. When the first base station cannot provide a communication service for the first device for some reason, the second device can serve as a relay, so that the first device can communicate with the second base station by using the second device as a relay. In this step, when the base station or the centralized control entity determines that the second base station and the second user equipment that can provide the relay service for the first device under the first base station, send the second relay establishment instruction to the second user equipment. .

103. Establish, according to the first relay establishment instruction and the second relay establishment instruction, a relay link that the first user equipment performs communication service with the second base station by using the second user equipment.

After the central control entity or the base station sends the first relay establishment instruction to the first device under the first base station, and sends the second relay establishment instruction to the second device under the second base station, the first user equipment is established. A relay link that performs communication services with the second base station by the second user equipment. Optionally, the relay link based on the second base station, the second user equipment, and the first device may be established according to the first relay establishment instruction and the second relay establishment instruction; or, according to the first relay establishment instruction, The second relay establishes an instruction, and establishes a relay link based on the first base station, the second base station, the second user equipment, and the first device.

In the relay communication method provided by the embodiment of the present invention, the base station or the centralized control entity establishes a relay link for the first device to communicate with the second base station by using the second user equipment as the relay user equipment, so that the first device can Obtaining the service service from the second user equipment to the second base station, where the first device in the area covered by the first base station cannot obtain the communication service that meets the service requirement by using the first base station, determining the second base station and the first The second user equipment provides service services for the first device by using the second user equipment and the second base station, thereby improving spectrum utilization and balancing service load of each cell.

Further, before sending the first relay establishment instruction to the first device that is served by the first base station, it is required to determine whether a relay service needs to be provided for the first device under the first base station.

The base station or the centralized control entity determines whether it is required to provide a relay service for the first device under the first base station, that is, determines whether the first device needs to use the other device as the relay user device, and provides a service service for the relay user device. The base station, that is, the relay base station, acquires a service service. The first device may be a user equipment or a sub-base station. For example, in a wide coverage scenario and an LTE-Hi communication scenario, the first device is specifically a user equipment, and the centralized control entity or the base station is configured according to the user equipment and the first base station. The link status, the service requirement of the user equipment, and the like determine whether a relay service needs to be provided for the first device. In the suburban coverage scenario, the first device is specifically a suburban base station, and is connected to the suburban base station through a relay. The first base station determines whether it is necessary to provide a relay service for the suburban base station according to the current link status, service status, and the like.

Further, before sending the second relay establishment command to the second user equipment served by the second base station, the second base station and the second user equipment under the second base station capable of providing the relay service for the first device are determined.

If it is determined that the first device needs to provide the relay service for the first device, for example, when the first base station has limited air interface resources, the first device cannot establish a communication link with the first base station, and the distance is too far, and the like. When the first device cannot access other base stations for communication, the base station or the centralized control entity determines the second base station that provides the relay service for the first device, and selects the first device from the user equipments in the cell covered by the second base station. The device providing the relay service serves as the second user device, that is, the relay user device.

After determining the second base station and the second user equipment, the base station or the centralized control entity establishes the first setting And a communication link between the second user equipment and the second base station, so that the first device can obtain a service service by using the second user equipment and the second base station to implement a communication service.

A relay communication method provided by an embodiment of the present invention, when a base station or a centralized control entity determines that a relay service needs to be provided for a first device under the first base station, determining a second base station that provides a relay service for the first device a second user equipment, and establishing a communication link between the first device and the second user equipment, and the second base station, so that the first device can obtain the service service from the second user equipment to the second base station, When the first device in the area covered by the base station cannot obtain the communication service that meets the service requirement by using the first base station, the second base station and the second user equipment are determined, and the first user equipment is provided by the second user equipment and the second base station. Business services, thereby improving spectrum utilization and balancing the traffic load of each cell.

In the foregoing Embodiment 1, the execution entity may be a base station or a centralized control entity. Generally, for a communication network or a communication network introduced into a centralized control entity, a network element having a function similar to a centralized control entity, such as a macro station (Marc) in an LTE-Hi communication network, due to a centralized control entity in a communication network All base stations are managed in a unified manner. Therefore, the centralized control entity can be responsible for determining the relay communication decision-making work of the first device that needs to provide the relay service, the second base station that can provide the relay service, and the second user equipment. For a communication network that does not introduce a centralized control entity, each base station can learn the current status of other base stations, especially neighboring base stations, because each base station can communicate with each other through an interface between the base station and the base station. Therefore, the base station can also be configured by the base station. It is responsible for determining the relay communication decision work of the first device that needs to provide the relay service, the second base station that can provide the relay service, and the second user equipment. In addition, the base station and the centralized control entity may also work in coordination with each other, for example, the base station is responsible for determining whether to provide the relay service, and the centralized control entity is responsible for determining the relay communication decision work of the second base station and the second user equipment, and the present invention is not This is a limitation. Specifically, if the centralized control entity or the base station determines that the air interface resources of the first base station are insufficient, the first user equipment to be accessed by the first base station is required to provide inter-cell relay service; or, if the centralized control entity or the base station determines the first The base station cannot provide the inter-cell relay service for the first user equipment under the first base station, or the link between the first base station and the sub-base station is determined. For example, when the relay is in the cell covered by the first base station, and the suburban base station is not within the range of the cell covered by the first base station, when the communication link or relay between the suburban base station and the relay is When the communication link with the first base station fails so that the suburban base station cannot implement the communication service with the first base station based on the relay, or the air resources between the relay and the suburban base station cannot meet the suburban base station service requirements, Suburban base stations provide relay services. In addition, in the foregoing Embodiment 1, a network element having a function similar to a centralized control entity in a communication network or a communication network introduced into a centralized control entity, such as a macro station (Marc) in an LTE-Hi communication network, is received by a centralized control entity. If the inter-cell relay service request is sent to the first base station, the first device in the first base station needs to provide the inter-cell relay service; or, if the service upgrade request including the service requirement sent by the first base station is received, The substation base station needs to provide a relay service, and the service upgrade request is sent when the first base station receives the new service request sent by the suburban base station.

Further, in the foregoing Embodiment 1, the centralized control entity or the base station may acquire the relay service information of the neighboring base station of the first base station and the user equipment of the neighboring base station by collecting, and determine the first base station according to the relay service information. a first neighboring base station capable of providing a relay service in a neighboring base station and a first relay user equipment capable of providing a relay service under the first neighboring base station, and communication between the first device and the first relay user equipment Performing measurement, obtaining a measurement result, and determining, according to the measurement result, a relay user equipment that provides an inter-cell relay service for the first device, thereby determining a second base station that provides a relay service for the first device and a second base station that provides a relay service for the first device User equipment.

The embodiments of the present invention are described in detail below with reference to several specific application scenarios.

2A is a schematic diagram of a wide coverage scenario of a second embodiment of a relay communication method according to the present invention. As shown in FIG. 2A, the first device is a user equipment (User Equipment, hereinafter referred to as UE), the black solid line is the control signaling, and the black dotted line is the communication link. In this embodiment, the centralized control entity controls the enhancement in the communication network. Enhanced Node B (hereinafter referred to as eNodeB): eNB 1, eNB2 and eNB3, UE1 is in the cell covered by eNB1 and communicates through eNB1, UE2, UE4 are in the cell covered by eNB2 and communicate through eNB2, UE3 is in eNB3 The covered cell communicates with the eNB3, and the 之间 between the eNB1 and the UE1 represents that the air interface resource between the eNB1 and the UE1 is limited due to the eNB1, the fault occurs, the communication link between the eNB1 and the UE1 fails, or the eNB1 cannot satisfy the UE1. The service requirements and the like make it impossible for UE1 to implement communication services through eNB1. In this embodiment, the present invention is mainly described by taking eNB 1 as the first base station, eNB 2 as the neighboring base station, and UE1 as the first user equipment as an example. In the prior art, when the UE1 cannot access the eNB1 or the eNB1 for some reason, the UE1 cannot provide the service service that meets the service requirement, because the UE1 is far away from the eNB2 and the eNB3, and cannot communicate through the eNB2 or the eNB3. Get the business you need. In this embodiment, the eNB1 and the centralized control entity establish a communication link with the UE2 as the relay for the UE1, so that the UE1 uses the UE2 as the relay to communicate with the idle resource of the eNB2.

It should be noted that, in this embodiment, only the eNB1 and the eNB3 are the neighboring base stations, and the cell covered by the eNB1 includes only the UE1 and the eNB2. The present invention is not limited by the UE4 and the eNB3. The neighboring base station of the eNB1 may be multiple, the eNB1, the eNB2, and the eNB1 and the eNB2. There may be multiple user equipments in the cell covered by the eNB3.

Figure 2B is a first signaling diagram of the scenario shown in Figure 2A. Referring to FIG. 2A at the same time, in this embodiment, the centralized control entity and the base station jointly complete the relay communication decision operation. Specifically, this embodiment may include the following steps:

201. The eNB1 determines whether a relay service needs to be provided for the UE1.

In this step, if the UE1 is ready to access the cell in which it is located, that is, the cell covered by the eNB1, because the air interface resource is limited, and the UE1 cannot access the eNB1 or the access success rate is relatively low, the eNB1 determines that the UE1 needs to provide the relay service; or If the UE1 has access to the eNB1, and the UE1 has the requirement to improve the service experience, but the eNB1 cannot provide the UE1 with the service requirement after the service experience is improved, the eNB1 determines that the relay service needs to be provided for the UE1.

202. The eNB1 sends an inter-cell relay service request to the centralized control entity.

In this step, the eNB1 sends an inter-cell relay service request to the centralized control entity to apply for a relay service for the UE1. The small-area relay service request carries at least one of information such as an identifier of the eNB1, location information of the UE1, service requirement information of the UE1, a service type of the UE1, and a relay service demand departure cause of the UE1.

203. The centralized control entity collects the relay service information and determines a first neighboring base station and a first relay user equipment that can provide the relay service.

In this step, the centralized control entity collects the relay service information from the neighboring base station of the eNB1, that is, the eNB2. Since the eNB2 knows the current status of the UE2 in the coverage area, the relay service information collected by the centralized control entity includes e B2. Cell operation information and relay service capability information of UE2. Specifically, the eNB2 may report, to the centralized control entity, the location of the cell covered by the eNB2, the coverage range, the spectrum resource usage status of the eNB2, the access success rate of the UE2 in the cell covered by the eNB2, and the online user accessing the eNB2. The eNB2 reports the user equipment information to the user equipment in the cell covered by the eNB2. The user equipment in the cell covered by the eNB2 reports the relay service capability information such as the relay capability, the location, the power, the existing service, and the mobile status. The capability information and the cell operation information are reported to the centralized control entity, and the centralized control entity collects the relay service information including the cell operation information of the eNB2 and the relay service capability information of the UE2.

According to the collected relay service information, the centralized control entity determines, according to a preset policy, a base station and a user equipment that can provide a relay service for the UE1 as the first neighboring base station and the first relay user. Equipment. For example, the central control entity may use a base station with fewer online user equipments in the neighboring base stations of the eNB1, that is, a base station with low resource utilization as the first neighboring base station capable of providing relay services for the UE1; A user equipment having relay capability and relatively stationary is the first relay user equipment capable of providing relay service for UE1.

204. The centralized control entity selects the second base station and the second user equipment for the UE1.

In general, since the eNB1 may have multiple neighboring base stations, as shown in FIG. 2A, the eNB1 and the eNB2 and the eNB3 are mutually adjacent base stations. Therefore, in the foregoing step 203, the centralized control entity determines that the relay service can be provided for the UE1. There may be multiple first neighboring base stations. At this time, the centralized control entity may perform screening again from the determined plurality of first neighboring base stations, for example, the base station that minimizes resource utilization and is closest to UE1 as the second. Base station. In addition, there may be multiple user equipments in the cell covered by each base station. Therefore, in the foregoing step 203, there may be multiple first relay user equipments that can be provided by the centralized control entity to provide the relay service for the UE1. In this case, the centralized control entity may perform the determined first relay user equipment with the The communication between the first devices performs measurement and acquires measurement results, and selects a suitable relay user device as the second user device from the determined plurality of first relay user devices according to the measurement result.

Specifically, the centralized control entity may send a measurement configuration message to the first relay user equipment, where the measurement configuration message includes: at least one of information such as a measurement frequency point, a measurement gap, a measurement result report identifier, a report format, and a measurement identifier. . For example, if it is determined that eNB2 is the first neighboring base station and UE2 is the user equipment with relay capability, the centralized control entity may send a measurement configuration message to UE2 through eNB2 to detect whether UE2 is the most suitable relay user equipment of UE1, UE2 The result of the measurement configuration is reported to the centralized control entity, and the reported result includes at least the signal strength of the UE2 as the relay user equipment.

205. The centralized control entity sends a first relay establishment instruction to the UE1.

The centralized control entity sends a first relay establishment instruction to the first device, that is, the UE1, where the first relay establishment instruction carries the second user equipment, that is, various information of the UE2, for example, the relay link has established an identifier, At least one of the information of the identifier of the second user equipment UE2, the relay frequency of the UE2, the relay bandwidth of the UE2, and the identifier of the eNB2, so that the UE1 knows the state information of the UE2 providing the relay service and uses UE2 as The relay performs relay communication.

206. The centralized control entity sends a second relay establishment instruction to the UE2.

The central control entity sends a second relay establishment instruction to the second user equipment, that is, the UE2, where the second relay establishment instruction carries the first user equipment, that is, various information of the UE1, such as the identifier of the UE1, At least one of the information of the relay frequency of the UE1, the relay bandwidth of the UE1, and the like, so that the UE2 knows the state information of the UE1 that needs to be provided with the relay service to provide the relay communication service for the UE1.

207. The centralized control entity establishes a relay link between UE1 and UE2.

After the second base station and the second user equipment are determined, the centralized control entity may establish a communication link between the first user equipment and the second user equipment, that is, establish a communication link between the UE1 and the UE2, so that the UE1 passes the UE2. And e B2 to obtain business services. Specifically, this step may include the following substeps:

2071, the centralized control entity notifies the eNB2 to establish a relay link between the UE1 and the UE2;

2072. The centralized control entity establishes a relay link between UE1 and UE2.

Since the base station and the base station can communicate through the base station interface, each base station can be connected to the core network, and the user equipment can obtain the service service from the core network through any base station. Generally, in order to avoid excessive signaling overhead, a relay link based on the first base station, the second base station, the second user equipment, and the first device may be established, that is, a service gateway is established (not shown)

-> eNB 1 -> eNB2 -> UE2 -> UE1 communication link, the first base station eNB1 obtains the service service from the core network, and then the eNB1 obtains the service service through the interface between the base station and the base station, such as the X2 interface. Sending to the second base station eNB2, so that the UE1 implements the communication service by the UE2 and the eNB2; in addition, in order to avoid the delay is too long, the relay link based on the second base station, the second user equipment, and the first device may be established, that is, directly Establishing a communication gateway (not shown) -> eNB2 -> UE2 -> UE1 communication link, the second base station eNB2 obtains a service service from the core network, so that the UE1 implements the communication service through the UE2 and the direct eNB2. The signaling needs to be configured so that the core network directly sends the service service to the eNB2. In a specific application, the user equipment may select to establish a communication link that saves signaling overhead or avoid a communication link with excessive delay according to a preset policy or user requirement.

208. The first device performs relay service data communication by using the first user equipment and the first base station. In this step, UE1 uses UE2 as a relay, and based on the relay communication link between UE1, UE2, and eNB2 established in step 205, UE1 performs communication services such as uplink and downlink data transmission through UE2 and eNB2. Specifically, the communication link may be a signaling-saving link as shown in FIG. 2081 or a time-delayed link as shown in 2082:

2081, service gateway (not shown) -> e B2->UE2->UEl;

2082. Serving gateway (not shown in the figure) -> eNB1 -> eNB2 -> UE2 -> UE1.

Optionally, in step 203 of this embodiment, the centralized control entity determines that the UE1 can be determined. There may be a plurality of first neighboring base stations providing relay services, and each of the first neighboring base stations is capable of providing the first relay user equipment of the relay service for the UE1. Therefore, the centralized control entity may be configured according to a preset policy, for example, when the service demand of the UE1 is relatively large, and the communication with one eNB cannot meet the service requirement, in step 204, the multiple neighboring base stations may be used. The plurality of second base stations determined by UE1, as shown in FIG. 2A, may select both eNB2 and eNB3 as the second base station of UE1. At this time, the centralized control entity may select multiple user equipments as the second user equipment from the user equipments in the cell covered by each second base station. For example, referring to FIG. 2A, after selecting eNB2 and eNB3 as the second base station, UE2 under eNB2 and UE3 under eNB3 may be selected as the second user equipment. At this time, the centralized control entity is also responsible for sending the offloading ratio indication information to the gateway device, indicating the uplink and downlink split ratios and manners of the service data, so that the gateway device performs at least two relay user equipments UE2 according to the split distribution ratio indication information. The relay traffic of UE3 is offloaded.

It should be noted that, after the centralized control entity determines at least one second base station from the multiple first neighboring base stations, for example, the first neighboring base station is used as the second base station, and the second base station covers the intra-cell. The relay capability of the relay user equipment cannot meet the communication requirement capability of the first device, and then the other first neighboring base stations can be selected as the second base station to re-determine the relay user equipment.

In addition, in this embodiment, the centralized control entity may further select a plurality of user equipments as the second user equipment from the determined one of the second base stations. For example, referring to FIG. 2A, after selecting eNB2 as the second base station, At least two user equipments UE2 and UE4 under e B2 may be selected as the second user equipment. At this time, the centralized control entity is also responsible for sending the offloading ratio indication information to the gateway device, indicating the uplink and downlink split ratios and manners of the service data, so that the gateway device performs the at least two second user equipments UE2 according to the split distribution ratio indication information. The relay traffic of the UE4 is split. The central control entity may also send the split ratio indication information to the base station e B2. The base station relays the at least two second user equipments UE2 and UE4 according to the split ratio indication information. Traffic is split.

In the relay communication method provided by the embodiment, the centralized control entity and the base station jointly perform the relay communication decision-making work, so that in the wide coverage scenario, the base station that provides the service service for the first user equipment cannot access due to insufficient air interface resources. The first user equipment, or when the first base station is unable to provide the service equipment that meets the service requirement for the accessed user equipment, the user equipment in the cell covered by the neighboring base station is used as the relay user equipment, and the first device is established. Relay communication link between user equipment The path is such that the first device acquires the service service by using the resources of the neighboring base station through the relay device and the neighboring base station.

2C is a second signaling diagram of the scenario shown in FIG. 2A. The difference from the embodiment shown in FIG. 2B is that, in this embodiment, the centralized control entity performs the relay communication decision process of the first user equipment. Referring to FIG. 2A at the same time, this embodiment may include the following steps:

301. The centralized control entity collects relay service information.

Since the centralized control entity has the radio resource management function for managing each base station, the centralized control entity can collect the cell operation information of the cell covered by each base station periodically or event-triggered for all the base stations in the jurisdiction. Relay service capability information for each user equipment. Step 3011, as shown in FIG. 2C, collects the cell operation information of the eNB1 and the relay service capability information of the UE1 for the centralized control entity. Step 3012 shows that the centralized control entity collects the cell operation information of the eNB2 and the relay service capability information of the UE2. For the collection process, please refer to step 203 of FIG. 2B, and details are not described herein again.

302. Determine whether a relay service needs to be provided for UE1.

In this step, since the centralized control entity has collected the relay service information of all the base stations and user equipments in the jurisdiction, it is possible to decide whether to provide a relay service for a certain user equipment according to the collected relay service information. Taking the UE1 as an example, according to the collected relay service information, if the centralized control entity discovers the cell covered by the eNB1, because the air interface resource is limited, the success rate of the UE1 access or the UE1 access is relatively low, and the centralized control entity determines the need. The relaying service is provided for the UE1, or if the UE1 has access to the eB1, but the UE1 has the requirement to improve the service experience, but the eNB1 cannot provide the UE1 with the service requirement after the service experience is improved, the centralized control entity determines that it needs to be the UE1. Provide relay service.

303. Determine a first neighboring base station and a first relay user equipment that can provide a relay service. In this step, when the centralized control entity determines that the relay service needs to be provided for the UE1, the first neighboring base station and the first user equipment that can provide the relay service for the UE1 are determined according to the collected relay service information. For the specific determination process, please refer to step 203 of FIG. 2B, and details are not described herein again.

304. The centralized control entity selects the second base station and the second user equipment for the UE.

305. The centralized control entity sends a first relay establishment instruction to UE1.

306. The centralized control entity sends a second relay establishment instruction to the UE2.

307. The centralized control entity establishes a relay link between UE1 and UE2.

For the above steps 304 to 308, please refer to steps 304 to 308 of FIG. 2B, and details are not described herein again. Specifically, the step 307 includes two sub-steps:

3071, the centralized control entity notifies the eNB2 to establish a relay link between the UE1 and the UE2;

3072. The centralized control entity establishes a relay link between UE1 and UE2.

308. The first device performs relay service data communication with the second base station by using the second user equipment. Specifically, the communication link may be a signaling-saving link shown in 3081 in the figure or a time-delayed link shown in 3082:

3081, service gateway (not shown) -> e B2->UE2->UEl;

3082. Serving gateway (not shown in the figure) -> eNB1 -> eNB2 -> UE2 -> UE1.

It should be noted that, in the embodiment shown in FIG. 2A, the centralized control entity and the base station jointly perform the relay communication decision operation. In FIG. 2B, the centralized control entity completes the relay communication decision process of the user equipment. However, since the base stations can communicate through the base station interface, each base station can learn the current status of other base stations, especially the neighboring base stations. Therefore, the centralized control entity may not be set, and a certain base station functions as a centralized control entity. It is only the base station responsible for determining whether to provide a relay service, determining relay communication decision operations such as the second base station and the second user equipment.

FIG. 3A is a schematic diagram of an LTE-Hi communication scenario according to Embodiment 3 of a relay communication method according to the present invention. As shown in FIG. 3A, the first user equipment is a user equipment, the black solid line is the control signaling, and the black dotted line is the communication link, in this embodiment. In this embodiment, the macro station (Marco) is similar to the centralized control entity in the embodiment shown in FIG. 2A, and has a radio resource control function (Radio Resource Control, hereinafter referred to as RRC), which is responsible for managing each micro station in the network (Micro) ), acting as an anchor node to manage Micro 1 and Micro 2, UE1 communicates through Marco, UE2 communicates with Micro2, and UE3 communicates with Microl. In the prior art, when Marco is unable to provide service services for UE1 for some reason, UE1 cannot communicate through Microl or Micro2 to obtain the required service because it is far away from Microl and Micro2. In this embodiment, Marco establishes a communication link with UE2 as a relay for UE1, so that UE1 uses UE2 as a relay to communicate with the idle resource of Micro2.

It should be noted that, in this embodiment, the present invention is described in detail by taking only the UE 2 and the area covered by the only micro-station Microl and Micro2 and Micro 1 in the area covered by Marco. However, the present invention is not limited thereto. In the actual implementation, there may be multiple micro stations managed by Marco, and there may be multiple user equipments in the area covered by each of Microl and Micro2.

FIG. 3B is a first signaling diagram of the scenario shown in FIG. 3A. Please refer to FIG. 3A at the same time, in this embodiment, Marco is responsible for relaying communications decisions. Specifically, this embodiment may include the following steps:

401. Macro collects relay service information.

Since Macro has the line resource control function and manages each Micro in the LTE-Hi network, for all Micros in the jurisdiction, the Macro can collect the cell operation information of each cell covered by the Micro periodically or event-triggered. And relay service capability information of each user equipment that communicates through Micro or communicates directly through Macro. As shown in FIG. 3B, step 4011 collects the cell operation information of the Micro2 and the relay service capability information of the UE2 for the Macro. Step 4012 shows that the Macro collects the cell operation information of the Microl and the relay service capability information of the UE3, and the specific collection process is performed. Please refer to step 203 of FIG. 2B, and details are not described herein again.

402. Determine whether a relay service needs to be provided for UE1.

In this step, since the UE1 communicates directly with the Macro, the Macro can know the current status of the UE1, and determine whether it is necessary to provide the relay service for the UE1 according to the current status of the UE1. For example, if Macro finds that the success rate of UE1 access or UE1 access is low due to limited air interface resources, Macro determines that it needs to provide relay service for UE1, or if UE1 has already connected to Macro, but because Macro cannot satisfy After UE1 improves the service demand after the service experience, etc., Macro determines that it needs to provide relay service for UE1.

403. Determine a first neighboring base station and a first relay user equipment that can provide a relay service. In this step, when the Macro determines that the UE1 needs to provide the relay service for the UE1, the micro-station capable of providing the relay service for the UE1 and the user equipment under the micro-station are determined according to the collected relay service information. And as the first neighboring base station and the first relay user equipment. For the specific determination process, please refer to step 203 of FIG. 2B, and details are not described herein again.

It should be noted that only the interaction with Micro2 is shown to determine whether Micro2 can serve as the first neighboring base station, and whether UE2 can serve as a relay user equipment to provide relay service for UE1. However, it actually includes The interaction process between Microl and other micro stations (not shown).

404. The macro selects the second base station and the second user equipment for the UE1.

For details, please refer to step 404 of FIG. 2B, and details are not described herein again.

405. The Macro sends a first relay establishment instruction to the UE1.

406. The Macro sends a second relay establishment instruction to the UE2.

Specifically, in the above steps 405 to 406, please refer to step 205 206 of FIG. 2B, where not Let me repeat.

407. The Macro establishes a relay link between UE1 and UE2.

After determining the second base station and the second user equipment, the Macro may establish a communication link between the first user equipment and the second user equipment, that is, establish a communication link between the UE1 and the UE2, so that the UE1 passes the UE2 and the Micro. Communicate. Specifically, this step may include the following sub-steps:

4071, Macro notifies that Micro2 establishes a relay link between UE1 and UE2;

4072. Micro2 establishes a relay link between UE1 and UE2.

In the LTE-Hi communication network, the Macro is connected to the core network, and the Micro obtains the core network resources through the Macro. Therefore, in this embodiment, the established communication link may be: a service gateway (not shown) -> Macro ->Micro2->UE2->UEl.

408. The first device performs relay service data communication with the second base station by using the second user equipment.

UE1 uses UE2 as a relay, and based on the relay communication link between UE1, UE2 and Micro2 established in step 205, UE1 performs communication services such as uplink and downlink data transmission through UE2 and Micro2. Specifically, the communication link may be the communication link shown in FIG. 408:

Service Gateway (not shown) ->Macro->Micro2->UE2->UEl.

In the relay communication method provided by this embodiment, the macro completes the relay communication decision operation, so that in the LTE-Hi scenario, when the macro station cannot provide service services for the first user equipment directly communicating with the macro station, the jurisdiction area thereof The user equipment in the cell covered by the micro-station is used as the relay user equipment to establish a communication link between the first user equipment and the relay user equipment, so that the first user equipment communicates with the micro-station through the relay user equipment. , use the resources of the micro-station idle to expand the business flexibly.

4A is a schematic diagram of a suburban coverage scenario in Embodiment 3 of a relay communication method according to the present invention. As shown in FIG. 4A, in this embodiment, the centralized control entity controls the serving gateway, the base station 1 and the base station 2, and the solid black line indicates the transmission of the control signaling. In this embodiment, the first device is a suburban base station, and the black dotted line is In the communication link in the prior art, the sub-base station communicates with the ordinary base station 1 through a relay, and when the sub-base station and the base station 1 cannot communicate due to a communication link failure, etc., for example, relay ( Relay is in the cell covered by the base station 1, and when the suburban base station is not within the range of the cell covered by the base station 1, when the communication link between the suburban base station and the relay or the communication link between the relay and the base station 1 When the road fails, the suburban base station cannot implement the communication service with the base station 1 based on the relay; or the communication link between the suburban base station and the relay cannot meet the service demand of the suburban base station, because the suburban base station is not at the base station 1 Within the covered area, the suburban base station cannot continue Continue to communicate with base station 1. In this embodiment, the centralized control entity establishes a communication link with the UE1 as a relay for the sub-base station, so that the sub-base station relays with the UE1, thereby continuing to communicate with the base station 1. Alternatively, the centralized control entity establishes the UE2 for the sub-base station. For the relayed communication link, the suburban base station is relayed by UE2 to communicate with the base station 2.

Figure 4B is a signaling diagram of the scenario shown in Figure 4A. Referring to FIG. 4A at the same time, in this embodiment, the base station 1 and the centralized control entity jointly complete the relay communication decision work. Specifically, in this embodiment, the following steps may be included:

501. The base station 1 detects a communication link status with a suburban base station and a service requirement of the suburban base station.

The base station 1 detects that there is a problem in the communication link between the relay, the relay and the suburban base station, or the communication link between the base station 1 and the relay, so that the communication link between the base station 1 and the suburban base station fails. Or, when the base station 1 receives the service upgrade request that is sent by the sub-base station and includes the service requirement, so that the service demand of the sub-base station exceeds the transmission capability between the sub-base station and the relay, the service upgrade request is, for example, the base station 1 receives the sub-base station. The service request, the base station 1 determines whether a relay service request needs to be sent to the centralized control entity.

502. The base station 1 sends a relay service request to the centralized control entity.

When the base station 1 detects a communication link with the suburban base station, if it detects that the communication link has failed or detects that the existing bandwidth of the base station 1 cannot satisfy the newly added service due to the suburban base station applying for a new service, The base station 1 transmits a relay service request to the centralized control entity.

503. The centralized control entity sends measurement configuration information to UE1.

After receiving the relay service request sent by the base station 1, the centralized control entity sends the measurement configuration information to the UE1 and receives the report result, and the measurement configuration information carries the information of the standard and frequency points of the suburban base station. Since there may be multiple user equipments included in the cell covered by the base station 1, in general, the centralized control entity selects the user equipment that sends the measurement configuration information to be the user equipment closest to the suburban base station.

It should be noted that, in order to clearly illustrate the present invention, in this embodiment, the measurement configuration information is sent to the UE1 in the cell covered by the base station 1 as an example. In an actual application scenario, the base station may be used. A plurality of user equipments in a plurality of adjacent base stations transmit measurement configuration information.

504. Select a second base station and a second user equipment.

In this step, the centralized control entity reports the result from the user equipment or the pre-saved user equipment. The appropriate second base station and the second user equipment are selected from the relay service capability information.

505. The centralized control entity sends a first relay establishment instruction to the suburban base station.

506. The centralized control entity sends a second relay establishment instruction to the UE1.

507. The centralized control entity establishes a relay link between the base station 1 and the suburban base station.

The centralized control entity controls the gateway device (not shown in Figure 4B) and the base station 1 establishes a communication link between the base station 1 and the suburban base station.

508. The suburban base station performs relay service data transmission by using the UE1 and the base station 1.

Specifically, the steps 506 to 508 refer to the step 206 208 of the embodiment shown in FIG. 2B, and details are not described herein again.

Optionally, in this embodiment, when the required bandwidth of the service data of the sub-base station is large, the centralized control entity may select multiple base stations as the second base station, for example, simultaneously select the base station 1 and the base station 2 as the second sub-base station. The central control unit may also select a plurality of user equipments as the relay user equipment of the suburban base station. For example, in this embodiment, the UE1 under the base station 1 and the UE2 under the base station 2 may be simultaneously selected as the second user equipment of the suburban base station. The configuration information of the centralized control entity to the gateway device further includes the ratio and manner of uplink and downlink traffic distribution of the service data. In addition, the centralized control entity may also select multiple user equipments under the same base station as the second user equipment of the suburban base station, such as simultaneously selecting multiple user equipments under the base station 1 or simultaneously selecting multiple user equipments under the base station 2, The centralized control entity may carry the uplink and downlink split ratios and modes of the service data in the configuration information of the gateway device, or send the uplink and downlink split ratios and configuration information of the service data to the base station, so that the base station controls the split ratio according to the split ratio. Instructing information, performing shunt control on relay traffic of at least two relay user equipments, and the like.

In the relay communication method provided by the embodiment, the centralized control entity and the base station jointly perform the relay communication decision work, so that in the scenario covered by the suburb, when the suburban base station adds a service request or the sub base station and the ordinary base station providing the service service When the link is faulty, the user equipment in the area covered by the ordinary base station adjacent to the sub-base station is used as the second user equipment, and the communication link between the second user equipment and the sub-base station is established, and the sub-base station passes the second The user equipment communicates with the ordinary base station, so that when the service demand of the suburban base station exceeds the transmission capability between the suburban base station and the relay, the suburban base station is quickly passed the communication link between the newly established relay user equipment and the suburban base station. Perform service data transmission to ensure the user's service experience, improve spectrum utilization, and balance the traffic load of each cell.

FIG. 5 is a schematic structural diagram of Embodiment 1 of a relay communication apparatus according to the present invention, as shown in FIG. The relay communication device 500 provided by the embodiment may be configured on the base station or the base station control entity, or may be the base station or the base station control entity itself. The relay communication device 500 provided in this embodiment may include: a first sending module 11 configured to: Transmitting, by the first device that is served by the first base station, a first relay establishment instruction;

The second sending module 12 is configured to send a second relay establishment instruction to the second user equipment that is served by the second base station;

The establishing module 13 is configured to establish, according to the first relay establishment instruction and the second relay establishment instruction, a relay link that the first device performs communication service with the second base station by using the second user equipment.

The relay communication device provided by the embodiment of the present invention, the base station or the centralized control entity establishes a relay link for the first device to communicate with the second base station by using the second user equipment as the relay user equipment, so that the first device can Obtaining the service service from the second user equipment to the second base station, where the first device in the area covered by the first base station cannot obtain the communication service that meets the service requirement by using the first base station, determining the second base station and the first The second user equipment provides service services for the first device by using the second user equipment and the second base station, thereby improving spectrum utilization and balancing service load of each cell.

Further, the establishing module 13 is specifically configured to:

Establishing a relay link based on the second base station, the second user equipment, and the first device according to the first relay establishment instruction and the second relay establishment instruction; or

And establishing a relay link based on the first base station, the second base station, the second user equipment, and the first device according to the first relay establishment instruction and the second relay establishment instruction.

FIG. 6 is a schematic structural diagram of Embodiment 2 of a relay communication apparatus according to the present invention. As shown in FIG. 6, the relay communication apparatus 600 of this embodiment, based on the embodiment shown in FIG. 5, further includes: A determining module 14 is configured to determine whether a relay service needs to be provided for the first device under the first base station.

Further, the first determining module 14 is specifically configured to:

If it is determined that the first base station cannot provide the service service that meets the service requirement for the accessed device, the first user equipment of the first base station needs to be provided with the inter-cell relay service; or

If it is determined that a link failure occurs between the first base station and the suburban base station, it is necessary to provide a relay service for the suburban base station.

Further, the first determining module 14 is further configured to: if receiving the inter-cell transmission sent by the first base station Following the service request, the first device under the first base station needs to be provided with an inter-cell relay service, and the small-area relay service request includes: an identifier of the first base station, an identifier of the first device, and a location of the first device. At least one of the information, the service requirement information of the first device, the service type of the first device, and the trigger service demand triggering cause of the first device; or

If the service upgrade request including the service requirement sent by the first base station is received, the substation base station needs to be provided with a relay service, and the service upgrade request is sent by the first base station when receiving the new service request sent by the suburban base station.

Further, referring to FIG. 6, the apparatus provided in this embodiment further includes:

The second determining module 15 is configured to determine a second base station capable of providing a relay service for the first device and a second user equipment under the second base station.

Further, the second determining module 15 includes:

The collecting unit 151 is configured to collect and obtain relay service information of the neighboring base station of the first base station and the user equipment of the neighboring base station;

The first determining unit 152 is configured to determine, according to the relay service information, a first neighboring base station that can provide a relay service among the neighboring base stations of the first base station, and a first one that can provide the relay service under the first neighboring base station Following the user equipment;

The measuring unit 153 is configured to measure communication between the first user equipment and the first relay user equipment under the first neighboring base station, and obtain a measurement result;

The second determining unit 154 is configured to determine, according to the measurement result, a relay base station and a relay user equipment that provide inter-cell relay service for the first device.

Further, the collecting unit 151 is specifically configured to:

Collecting at least one of cell location information, cell coverage information, cell spectrum resource usage, cell user access success rate, and cell online user number of the neighboring base station of the first base station; collecting and acquiring users under neighboring base stations Whether the device has at least one of relay capability, location, power, existing business conditions, and mobile conditions.

Further, the measuring unit 153 is specifically configured to:

Sending a measurement configuration message to the first user equipment and the first relay user equipment, where the measurement configuration message includes: at least one of a measurement frequency point, a measurement gap, a measurement result report identifier, a report format, and a measurement identifier;

Receiving the measurement result sent by the first user equipment and the first relay user equipment, the measurement result includes: at least one of the measured signal strengths. Further, the first relay establishment instruction includes at least one of an identifier of the second user equipment, a relay frequency of the second user equipment, and a relay bandwidth of the second user equipment, where the second relay establishment instruction includes At least one of an identifier of the first device, a relay frequency of the first device, and a relay bandwidth of the first device.

The third sending module 16 is configured to: if the relay user equipment is at least two second user equipments, send the shunting ratio indication information to the gateway device and/or the base station, so that the gateway device and/or the base station indicate according to the shunting ratio The information is used to offload the relay traffic of the at least two second user equipments.

FIG. 7 is a schematic structural diagram of Embodiment 3 of a relay communication apparatus according to the present invention. As shown in FIG. 7, the relay communication device 700 of the present embodiment may include a processor 71 and a memory 72. The relay communication device 700 may further include a transmitter 73 and a receiver 74. Transmitter 73 and receiver 74 can be coupled to processor 71. The memory 72 stores execution instructions. When the relay communication device 700 is running, the processor 71 communicates with the memory 72, and the processor 71 calls the execution instructions in the memory 72 for performing the following operations:

The relay communication device 700 transmits a first relay establishment instruction to the first device served by the first base station;

Transmitting, by the second user equipment that is served by the second base station, a second relay establishment instruction, according to the first relay establishment instruction and the second relay establishment instruction, establishing that the first device communicates with the second base station by using the second user equipment The relay link of the service.

Optionally, the relay link that the first device performs communication service with the second base station by using the second user equipment according to the first relay establishment instruction and the second relay establishment instruction includes:

Optionally, before the first relay establishment instruction is sent to the first device that is served by the first base station, the method further includes:

Optionally, determining whether the first device needs to be provided for the first device in the first base station, if the air resource of the first base station is insufficient, Relay service; or, If it is determined that the first base station cannot provide the service service that meets the service requirement for the accessed device, the first user equipment of the first base station needs to be provided with the inter-cell relay service; or

Optionally, determining whether the first device needs to be provided for the first device in the first base station, if the receiving the inter-cell relay service request sent by the first base station, Small interval relay service; or,

Optionally, the inter-zone relay service request includes:

At least one of an identifier of the first base station, an identifier of the first device, location information of the first device, service requirement information of the first device, a service type of the first device, and a relay service demand triggering cause of the first device Kind of information.

Optionally, before sending the second relay establishment instruction to the second user equipment that is served by the second base station, the method includes:

A second base station capable of providing a relay service for the first device and a second user device under the second base station are determined.

Optionally, determining the second base station that provides the relay service for the first device and the second user equipment that is the second base station, including:

Collecting and obtaining relay service information of the neighboring base station of the first base station and the user equipment of the neighboring base station;

Determining, according to the relay service information, a first neighboring base station capable of providing a relay service among the neighboring base stations of the first base station, and a first relay user equipment capable of providing a relay service under the first neighboring base station; The communication between the device and the first relay user equipment under the first neighboring base station is measured, and the measurement result is obtained;

According to the measurement result, the second base station and the second user equipment that provide the inter-cell relay service for the first device are determined.

Optionally, collecting the obtained secondary service information of the first base station and the user equipment of the neighboring base station, including:

Collecting cell location information, cell coverage information, and cell frequency of the neighboring base station that acquires the first base station At least one of spectrum resource usage, cell user access success rate, and number of cell online users; collecting and acquiring user equipment under neighboring base stations for relay capability, location, power, existing service conditions, and mobility At least one of the information.

Optionally, the communication between the first user equipment and the first relay user equipment in the first neighboring base station is measured, and the measurement result is obtained, including:

Receiving the measurement result sent by the first user equipment and the first relay user equipment, the measurement result includes: at least one of the measured signal strengths.

Optionally, the first relay establishment instruction includes at least one of an identifier of the second user equipment, a relay frequency of the second user equipment, and a relay bandwidth of the second user equipment, and second The relay establishment instruction includes at least one of an identifier of the first device, a relay frequency of the first device, and a relay bandwidth of the first device.

Optionally, if the second user equipment is the at least two second user equipment, the method further includes: sending, by the gateway device and/or the base station, the offloading ratio indication information, so that the gateway device and/or the base station according to the offloading ratio indication The information is used to offload the relay traffic of the at least two second user equipments.

In addition, based on the foregoing relay communication method and the relay communication device embodiment, the embodiment of the present invention further provides a relay communication system, including a controller and at least two base stations, where the controller includes any of the foregoing relay communication devices. For a specific working principle, refer to the foregoing method embodiments, device embodiments, and specific implementation scenarios, and details are not described herein.

In addition, based on the foregoing relay communication method and the relay communication device embodiment, the embodiment of the present invention further provides another relay communication system. Unlike the above embodiment, the communication system of this embodiment may not set a centralized control entity. And including at least two base stations, at least one of which includes the relay communication device of any of the above. It should be noted that, in this embodiment, the first determining module of the relay communication device of the embodiment does not receive the inter-cell relay service request sent by the first base station, nor does it have any centralized control entity. The first device in the first base station needs to be provided with the inter-cell relay service; or the service upgrade request including the service requirement sent by the first base station is not received, and the sub-base station is not required to provide the relay service, and the service upgrade request is A base station sends when it receives a new service request sent by a suburban base station. For a specific working principle, refer to the foregoing method embodiments, device embodiments, and specific implementation scenarios, and details are not described herein. It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

Rights request

1. A relay communication method, characterized by including:

Send a first relay establishment instruction to the first device served by the first base station;

Send a second relay establishment instruction to the second user equipment provided by the second base station; According to the first relay establishment instruction and the second relay establishment instruction, establish the first equipment through the second A relay link for user equipment to perform communication services with the second base station.

2. The method according to claim 1, characterized in that, according to the first relay establishment instruction and the second relay establishment instruction, the first device is established through the second user equipment and The relay link used by the second base station to provide communication services includes:

According to the first relay establishment instruction and the second relay establishment instruction, establish a relay link based on the second base station, the second user equipment, and the first equipment; or,

According to the first relay establishment instruction and the second relay establishment instruction, a relay link based on the first base station, the second base station, the second user equipment, and the first equipment is established .

3. The method according to claim 1 or 2, before sending the first relay establishment instruction to the first device served by the first base station, further comprising:

Determine whether relay services need to be provided for the first device under the first base station.

4. The method according to claim 3, wherein the determining whether it is necessary to provide relay services for the first device under the first base station includes:

If it is determined that the air interface resources of the first base station are insufficient, it is necessary to provide inter-cell relay services for the first user equipment to be accessed by the first base station; or,

If it is determined that the first base station cannot provide service services that meet business requirements for the accessed device, it is necessary to provide inter-cell relay services for the first user equipment under the first base station; or, if it is determined that the first base station If a link failure occurs between the base station and the suburban base station, relay services need to be provided for the suburban base station.

5. The method according to claim 3, wherein the determining whether it is necessary to provide relay services for the first device under the first base station includes:

If the inter-cell relay service request sent by the first base station is received, the inter-cell relay service needs to be provided for the first device under the first base station; or,

If a service upgrade request containing service requirements is received from the first base station, it is necessary to provide relay services for the suburban base station. The service upgrade request is when the first base station receives the suburban base station. Sent when the area base station sends a new service request.

6. The method according to claim 5, characterized in that the inter-cell relay service request includes:

The identifier of the first base station, the identifier of the first device, the location information of the first device, the service requirement information of the first device, the service type of the first device, the first Information on at least one of the triggering reasons for the device's relay service requirement.

7. The method according to any one of claims 1 to 6, characterized in that, before sending the second relay establishment instruction to the second user equipment provided by the second base station, the method includes:

Determine a second base station that can provide relay services for the first device and a second user equipment under the second base station.

8. The method according to claim 7, wherein the determining the second base station that provides relay services for the first device and the second user equipment under the second base station includes:

Collect and obtain relay service information of adjacent base stations of the first base station and user equipment under the adjacent base stations;

According to the relay service information, a first neighboring base station that can provide relay services among the neighboring base stations of the first base station and a first relay user under the first neighboring base station that can provide relay services are determined. equipment;

Measure the communication between the first user equipment and the first relay user equipment under the first adjacent base station, and obtain the measurement results;

According to the measurement results, a second base station and a second user equipment that provide inter-cell relay services for the first equipment are determined.

9. The method according to claim 8, wherein the collecting and obtaining relay service information of adjacent base stations of the first base station and user equipment under the adjacent base stations includes: collecting and obtaining the At least one of the cell location information, cell coverage information, cell spectrum resource usage, cell user access success rate, and the number of online users in the cell of adjacent base stations of the first base station;

Collect and obtain at least one information of whether the user equipment under the adjacent base station has relay capability, location, power, existing business conditions, and mobility conditions.

10. The method according to claim 8 or 9, characterized in that: measuring the communication between the first user equipment and the first relay user equipment under the first adjacent base station, obtaining Measurement results, including: Send a measurement configuration message to the first user equipment and the first relay user equipment, where the measurement configuration message includes: at least one of a measurement frequency point, a measurement gap, a measurement result reporting identifier, a reporting format, and a measurement identifier. information;

Receive measurement results sent by the first user equipment and the first relay user equipment, where the measurement results include: at least one kind of information in the measured signal strength.

11. The method according to any one of claims 1 to 10, characterized in that the first relay establishment instruction includes an identifier of the second user equipment, a relay frequency of the second user equipment. point, at least one kind of information in the relay bandwidth of the second user equipment, the second relay establishment instruction includes the identifier of the first device, the relay frequency point of the first device, the At least one kind of information in the relay bandwidth of the first device.

12. The method according to any one of claims 1 to 11, wherein if the second user equipment is at least two second user equipment, the method further includes:

Send the offloading ratio indication information to the gateway device and/or the base station, so that the gateway device and/or the base station offloads the relay traffic of the at least two second user equipments according to the offloading ratio indication information.

13. A relay communication device, characterized in that it includes:

A first sending module, configured to send a first relay establishment instruction to the first device served by the first base station;

A second sending module, configured to send a second relay establishment instruction to the second user equipment provided by the second base station;

An establishment module, configured to establish a relay chain in which the first device performs communication services with the second base station through the second user equipment according to the first relay establishment instruction and the second relay establishment instruction. road.

14. The device according to claim 13, characterized in that the establishment module is specifically used for:

15. The device according to claim 13 or 14, characterized in that the device further comprises: a first determination module, used to determine whether it is necessary to provide relay services for the first device under the first base station. service.

16. The device according to claim 15, characterized in that the first determination module is specifically used for:

17. The device according to claim 15, characterized in that the first determination module is also used to:

If a service upgrade request containing service requirements sent by the first base station is received, it is necessary to provide relay services for the suburban base station. The service upgrade request is that the first base station receives a new service request sent by the suburban base station. Sent when a business request is made.

18. The device according to claim 17, characterized in that the inter-cell relay service request includes:

19. The device according to any one of claims 13 to 18, characterized in that the device further includes:

A second determination module, configured to determine a second base station that can provide relay services for the first device and a second user equipment under the second base station.

20. The device according to claim 19, characterized in that the second determination module includes:

A collection unit, configured to collect and obtain relay service information of adjacent base stations of the first base station and user equipment under the adjacent base station;

A first determining unit configured to determine, based on the relay service information, a first neighboring base station among the neighboring base stations of the first base station that can provide relay services and a first neighboring base station that can provide relay services. The first relay user equipment providing relay services;

A measurement unit, configured to measure the communication between the first user equipment and the first relay user equipment under the first adjacent base station, and obtain a measurement result;

The second determination unit is configured to determine, according to the measurement result, a relay base station and a relay user equipment that provide inter-cell relay services for the first device.

21. The device according to claim 20, characterized in that the collection unit is specifically used for:

Collect and obtain at least one of the cell location information, cell coverage information, cell spectrum resource usage, cell user access success rate, and the number of online users in the cell of adjacent base stations of the first base station;

22. The device according to claim 20 or 21, characterized in that the measurement unit is specifically used for:

Send a measurement configuration message to the first user equipment and the first relay user equipment, where the measurement configuration message includes: at least one of a measurement frequency point, a measurement gap, a measurement result reporting identifier, a reporting format, and a measurement identifier. information;

23. The apparatus according to any one of claims 13 to 22, wherein the first relay establishment instruction includes an identifier of the second user equipment and a relay frequency point of the second user equipment. , at least one kind of information in the relay bandwidth of the second user equipment, the second relay establishment instruction includes the identifier of the first equipment, the relay frequency point of the first equipment, the third At least one piece of information in the relay bandwidth of a device.

24. The apparatus according to any one of claims 13 to 23, further comprising: a third sending module, configured to send a message to the gateway device if the relay user equipment is at least two second user equipments. And/or the base station sends the offloading ratio indication information, so that the gateway device and/or the base station offloads the relay traffic of the at least two second user equipments according to the offloading ratio indication information.

25. A communication system, characterized in that it includes: at least two base stations, at least one of the at least two base stations includes a communication system as described in any one of claims 13, 14, 15, 16, 20-24 relay communication device.

26. A communication system, characterized in that it includes: a controller and at least two base stations, the controller including the relay device according to any one of claims 13 to 24.