WO2014205772A1 - Method, device, and system for establishing wireless network - Google Patents

Abstract

Embodiments of the present invention relate to the field of communications, and disclose a method, device, and system for establishing a wireless network for solving the problem of backhaul capacity being too small in wireless networks. The specific solution is: a base station establishes a multi-hop link for a first relay node and a second relay node, such that the first relay node can transmit data to the base station via the second relay node, the first relay node being used for transmitting data for a user terminal. The present invention applies to the establishment of a wireless network.

Description

 Method, device and system for establishing wireless network

 Technical field

 The present invention relates to the field of communications, and in particular, to a method, device, and system for establishing a wireless network. Background technique

LTE (Long Term Evolved) is a mobile communication network actively researched by various vendors in the 3rd Generation Partnership Program (3GPP). It is a Universal Mobile Telecommunication System (UMTS). System) evolution network. The goal of LTE is to provide a low-cost network that can reduce latency, increase user data rates, increase system capacity, and coverage. The air interface of the LTE network is implemented by deploying a macro eNB ( evolved Node B), and the user equipment (User Equipment) communicates with the macro eNB to implement air interface transmission of the mobile service. In order to meet the growing demand for high-speed data services, this has higher requirements for the average throughput of cells and the rate of data transmission for edge users. As a low-power, low-cost network node, the wireless relay (Relay) is introduced into the LTE system, which can increase the system capacity of the network and expand the coverage of the network. In the base station cell where the relay exists, the link can be classified into a direct link (Direct link), an access link (Access link), and a backhaul link (Backhaul link) according to the link service object. Currently, 3GPP Releasel O mainly studies the network structure mode of Single-hop Relay. Considering the need to control costs and facilitating deployment, wireless backhaul technology is adopted between the relay node and the base station. For the self-interference problem of the access link and the backhaul link of the relay node, the 3GPP uses the MBSFN (Multimedia Broadcast Single Frequency Network) subframe to implement the transmission of the backhaul data, thereby avoiding the simultaneous execution of the relay node. In the case of receiving and transmitting data, the self-interference problem of the access link and the backhaul link is solved, but in this manner of data transmission, the capacity of the backhaul link is relatively small. Summary of the invention Embodiments of the present invention provide a method, device, and system for establishing a wireless network, which can increase the capacity of a backhaul link in a wireless network. In order to achieve the above objective, the embodiment of the present invention uses the following technical solution: In a first aspect, a method for establishing a wireless network is provided, which is applied to a first relay node, where the first relay node directly establishes a connection with a user equipment. The method includes: the first relay node receives a first multi-hop link setup request message sent by the base station; the first relay node completes itself and the location according to the first multi-hop link setup request message. Determining a configuration of a link between the second relay nodes, and initiating uplink synchronization to the second relay node on a link between itself and the second relay node, so as to pass the second relay The node sends backhaul data to the base station. In a first possible implementation, in combination with the first aspect, the first multi-hop link setup request message includes: radio resource control protocol RRC configuration information of the first relay node, the second relay a carrier frequency of the node and a physical layer cell identifier PCI of the second relay node; the first relay node completes a link between itself and the second relay node according to the first multi-hop link setup request message The configuration includes: the first relay node identifies the second relay node according to a carrier frequency of the second relay node and a physical layer cell identifier PCI of the second relay node, and according to the The RRC configuration information of the first relay node completes the configuration of the link with the second relay node.

In a second possible implementation, in combination with the first aspect, before the first relay node receives the multi-hop link setup request message sent by the base station, the method further includes: sending, by the first relay node, the base station Network load information, so that the base station acquires a network load status of the first relay node, where the network load information includes an access user equipment number of the first relay node and/or an occupancy rate of a physical resource block. . In a third possible implementation, combining the second possible implementation of the first aspect After the first relay node sends the network load information to the base station, the method further includes: the first relay node receiving the measurement control information sent by the base station; the first relay node according to the measurement The control information measures a signal quality of the second relay node and generates a measurement report, and transmits the measurement report to the base station. In a fourth possible implementation, in combination with the first aspect, after the first relay node completes the configuration of the link between itself and the second relay node according to the first multi-hop link setup request message, The method further includes: the first relay node sending a multi-hop link setup complete message to the second relay node. In a fifth possible implementation, in combination with the first aspect, after the first relay node completes the configuration of the link between itself and the second relay node according to the first multi-hop link setup request message, The method further includes: sending, by the second relay node, the multi-hop link setup complete message to the base station by using the second relay node, where the multi-hop link setup complete message is carried by the radio data bearer DRB. The second aspect provides a method for establishing a wireless network, where the method is applied to a second relay node, where the method includes: the second relay node receives a backhaul link request message sent by a base station; Generating a backhaul link acknowledgement message according to the backhaul link request message, and sending the backhaul link acknowledgement message to the base station, so that the base station generates a second multi-hop link setup request message according to the backhaul link acknowledgement message The second relay node receives the second multi-hop link setup request message sent by the base station; the second relay node completes itself and the described according to the second multi-hop link setup request message. Configuring a link between the first relay node and the base station, and establishing uplink synchronization with the first relay node on a link between itself and the first relay node, so as to switch to the base station Sending backhaul data sent by the first relay node.

 In a first possible implementation, in combination with the second aspect,

 The backhaul link request message includes at least one relay node request context, and the relay node request context includes: an identity identifier of the first relay node and a wireless to be accessed in the first relay node Access bearer E-RAB list;

 The backhaul link acknowledgement message includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, and an E-RAB of the first relay node confirming access a list and RRC configuration information of the first relay node;

 The generating, by the second relay node, the backhaul link acknowledgement message according to the backhaul link request message specifically includes:

 Determining, by the second relay node, the first relay node according to the identity identifier ID of the first relay node and the radio access bearer E-RAB list to be accessed in the first relay node And the RRC configuration information of the first relay node is generated according to the determined E-RAB list.

 In a second possible implementation manner, in combination with the second aspect, the second multi-hop link setup request message includes:

RRC configuration information, a maximum backhaul transmission bit rate of the second relay node, and a relay node ID list, where the relay node ID list includes an ID of at least one first relay node, where the second relay The RRC configuration information of the node includes configuration information required by the second relay node to establish a link with the first relay node and the base station;

 The configuration of the link between the first relay node and the first relay node and the base station by the second relay node according to the second multi-hop link setup request message specifically includes:

The second relay node identifies the first relay node according to the ID of the first relay node, according to a maximum backhaul transmission bit rate of the second relay node, and an RRC of the second relay node. The configuration information completes itself and the first relay node and Configuration of links between base stations. In a third possible implementation, in combination with the second aspect, before the second relay node receives the backhaul link request message sent by the base station, the method further includes:

 The second relay node sends an identity message to the base station, where the identity message is used to notify the base station that the second relay node supports backhaul transmission in a multi-hop link. In a fourth possible implementation, the second aspect, the first possible implementation of the second aspect, the second possible implementation of the second aspect, or the third possible implementation of the second aspect After the second relay node completes the configuration of the link between the first relay node and the base station according to the second multi-hop link setup request message, the second relay node further includes: the second Receiving, by the relay node, a multi-hop link setup complete message sent by the first relay node;

The second relay node sends the multi-hop link setup complete message to the base station. In a fifth possible implementation, the second aspect, the first possible implementation of the second aspect, the second possible implementation of the second aspect, or the third possible implementation of the second aspect After the second relay node completes the configuration of the link between the first relay node and the base station according to the second multi-hop link setup request message, the second relay node further includes: the second The relay node receives the multi-hop link setup complete message sent by the base station. A third aspect, a method for establishing a wireless network, is applied to a base station, where the method includes: the base station sending a backhaul link request message to a second relay node; and the base station receiving the second relay node sending a backhaul link acknowledgement message, the base station generates a second multi-hop link setup request message according to the backhaul link acknowledgement message, and sends the second multi-hop link setup request message to the second relay node, So that the second relay node completes the configuration of the link with the first relay node according to the second multi-hop link setup request message; the base station generates the first according to the backhaul link acknowledgement message. Multi-hop link setup request a message, sending the first multi-hop link setup request message to the first relay node, so that the first relay node completes the second middle node according to the first multi-hop link setup request message. Following the configuration of the link between the nodes. In a first possible implementation, in combination with the third aspect, before the sending, by the base station, the backhaul link request message to the second relay node, the method further includes: the base station receiving the identity message sent by the second relay node The identity message is used to notify the base station that the second relay node supports backhaul transmission in a multi-hop link; the base station acquires network load information of the first relay node, where The network load information includes the number of access user equipments of the first relay node and/or the occupancy rate of the physical resource blocks, used to indicate the network load status of the first relay node, and the base station according to the network load Sending measurement control information to the first relay node;

 The base station receives a measurement report sent by the first relay node.

 In a second possible implementation manner, in combination with the first possible implementation manner of the third aspect, the acquiring, by the base station, network load information of the first relay node includes: receiving, by the base station, the first medium The network load information sent by the node.

In a third possible implementation, in combination with the first possible implementation manner of the third aspect, the acquiring, by the base station, the network load information of the first relay node includes: the base station measuring the first middle Following the network load condition of the node, and generating network load information of the first relay node according to the network load condition. In a fourth possible implementation manner, in combination with the first possible implementation manner of the third aspect, the sending, by the base station, a backhaul link setup request message to the second relay node, includes: the base station according to the identity message And generating, by the network load information and the measurement report, the backhaul link request message, and sending the backhaul link request message to the second relay node. In a fifth possible implementation, combining the third aspect, the first possibility of the third aspect The implementation manner, the second possible implementation manner of the third aspect, the third possible implementation manner of the third aspect, or the fourth possible implementation manner of the third aspect, the base station to the first relay After the node sends the first multi-hop link setup request message, the method further includes:

 The base station receives a multi-hop link setup complete message sent by the second relay node. In a sixth possible implementation, the third aspect, the first possible implementation manner of the third aspect, the second possible implementation manner of the third aspect, and the third possible implementation manner of the third aspect Or the fourth possible implementation manner of the third aspect, after the sending, by the base station, the first multi-hop link setup request message to the first relay node, the method further includes: the base station receiving the first relay node Sending the multi-hop link setup complete message forwarded by the second relay node, where the multi-hop link setup complete message is passed

The DRB bearer; the base station sends the multi-hop link setup complete message to the second relay node. The fourth aspect provides a first relay node, where the first relay node directly establishes a connection with the user equipment, and the method includes: a receiving unit and a configuration unit, where the receiving unit is configured to receive the sending by the base station a first multi-hop link setup request message, where the configuration unit is configured to complete, according to the first multi-hop link setup request message received by the receiving unit, a configuration of a link between itself and a second relay node, And initiating uplink synchronization to the second relay node on a link between itself and the second relay node, so as to send backhaul data to the base station by using the second relay node. In a first possible implementation, in combination with the fourth aspect, the first multi-hop link setup request message received by the receiving unit includes: radio resource control protocol RRC configuration information of the first relay node, a carrier frequency of the second relay node and a physical layer cell identifier PCI of the second relay node;

The configuration unit is specifically configured to identify the second relay node according to a carrier frequency of the second relay node and a PCI of the second relay node, and configure an RRC according to the first relay node. The information completes the configuration of the link with the second relay node. In a second possible implementation manner, in combination with the fourth aspect, the first relay node further includes a sending unit,

 The sending unit is configured to send network load information to the base station, so that the base station acquires a network load status of the first relay node, where the network load information includes access by the first relay node The number of user devices and/or the occupancy of physical resource blocks.

 In a third possible implementation, in combination with the second possible implementation of the fourth aspect,

 The receiving unit is further configured to receive measurement control information sent by the base station; the first relay node further includes a measurement unit,

 The measuring unit is configured to measure a signal quality of the second relay node according to the measurement control information received by the receiving unit, and generate a measurement report;

 The sending unit is further configured to send the measurement report generated by the measuring unit to the base station.

 In a fourth possible implementation, in combination with the fourth aspect, the sending unit is further configured to send a multi-hop link setup complete message to the second relay node.

 In a fifth possible implementation, in combination with the fourth aspect, the sending unit is further configured to send, by using the second relay node, the multi-hop link setup complete message to the base station, where The multi-hop link setup complete message is carried over the radio data bearer DRB.

 In a fifth aspect, a second relay node is provided, including: a receiving unit, an analyzing unit, a sending unit, and a configuration unit,

The receiving unit is configured to receive a backhaul link setup request message sent by the base station, where the analyzing unit is configured to: according to the backhaul link received by the receiving unit Generating a backhaul link acknowledgement message to the message; the sending unit, configured to send the backhaul link acknowledgement message generated by the analysis unit to the base station, so that the base station generates a first message according to the backhaul link acknowledgement message a second multi-hop link setup request message; the receiving unit is further configured to receive the second multi-hop link setup request message sent by the base station, where the configuration unit is configured to receive according to the receiving unit The second multi-hop link setup request message completes the configuration of the link between the first multi-hop link and the base station, and is on the link between itself and the first relay node. The first relay node establishes uplink synchronization, so as to forward the backhaul data sent by the first relay node to the base station. In a first possible implementation, in combination with the fifth aspect, the backhaul link request message received by the receiving unit includes at least one relay node request context, and the relay node request context includes: the first The identity ID of the relay node and the radio access bearer to be accessed in the first relay node

The E-RAB歹'J table; the backhaul link acknowledgement message generated by the analysis unit includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, Determining, by the first relay node, the E-RAB list of the access and the RRC configuration information of the first relay node; the analyzing unit is specifically configured to use, according to the ID of the first relay node, and the A radio access bearer E-RAB list to be accessed in a relay node generates an E-RAB歹1 table that is determined to be accessed in the first relay node, and determines an access E-RAB歹l according to the determining The table generates RRC configuration information of the first relay node.

In a second possible implementation manner, in combination with the fifth aspect, the second multi-hop link setup request message received by the receiving unit includes: Determining RRC configuration information of the second relay node, a maximum backhaul transmission bit rate of the second relay node, and a relay node ID list, where the relay node ID list includes an ID of at least one first relay node, where The RRC configuration information of the second relay node includes configuration information required for the second relay node to establish a link with the first relay node and the base station; The ID of the first relay node identifies the first relay node, and completes itself and the first according to a maximum backhaul transmission bit rate of the second relay node and RRC configuration information of the second relay node. A relay node and a configuration of a link with the base station.

 In a third possible implementation, in combination with the fifth aspect, the sending unit is further configured to send an identity message to the base station, where the identity message is used to notify the base station that the second relay node supports Used in backhaul transmission in multi-hop links.

In a fourth possible implementation, the fifth aspect, the first possible implementation manner of the fifth aspect, the second possible implementation manner of the fifth aspect, or the third possible implementation manner of the fifth aspect The receiving unit is further configured to receive a multi-hop link setup complete message sent by the first relay node, where the sending unit is further configured to complete the establishment of the multi-hop link received by the receiving unit A message is sent to the base station. In a fifth possible implementation, the fifth aspect, the first possible implementation manner of the fifth aspect, the second possible implementation manner of the fifth aspect, or the third possible implementation manner of the fifth aspect The receiving unit is further configured to receive a multi-hop link setup complete message sent by the base station. In a sixth aspect, a base station is provided, including: a sending unit, a receiving unit, and an analysis list Yuan,

 The sending unit is configured to send a backhaul link request message to the second relay node, where the receiving unit is configured to receive a backhaul link acknowledgement message sent by the second relay node, and the analyzing unit is configured to: Generating a first multi-hop link setup request message and a second multi-hop link setup request message according to the backhaul link acknowledgement message received by the receiving unit;

The sending unit is further configured to send the second multi-hop link setup request message generated by the analyzing unit to the second relay node, so that the second relay node is according to the second multiple The hop link establishment request message completes the configuration of the link with the first relay node; and sends the first multi-hop link setup request message generated by the analysis unit to the first relay a node, so that the first relay node completes configuration of a link with the second relay node according to the first multi-hop link setup request message. In a first possible implementation, in combination with the sixth aspect, the receiving unit is further configured to receive an identity message sent by the second relay node, where the identity message is used to notify the base station of the second The relay node is configured to be used for the backhaul transmission in the multi-hop link; the sending unit is further configured to acquire network load information of the first relay node, and send the network load information to the first relay node according to the Sending the measurement control information, where the network load information includes the number of access user equipments of the first relay node and/or the occupancy rate of the physical resource block, and is used to indicate the network load status of the first relay node. The receiving unit is further configured to receive a measurement report sent by the first relay node. In a second possible implementation manner, in combination with the first possible implementation manner of the sixth aspect, The receiving unit is further configured to receive the network load information sent by the first relay node;

 The sending unit is further configured to acquire the network load information received by the receiving unit.

 In a third possible implementation manner, in combination with the first possible implementation manner of the sixth aspect, the base station further includes a measurement unit, where the measurement unit is configured to measure a network load condition of the first relay node. And generating the network load information of the first relay node according to the network load condition; the sending unit is further configured to acquire the network load information generated by the measurement unit.

 In a fourth possible implementation, in combination with the first possible implementation of the sixth aspect,

 The analyzing unit is further configured to generate the backhaul link request cancellation according to the identity message received by the receiving unit and the measurement report and the network load information acquired by the sending unit. In a fifth possible implementation, the sixth aspect, the first possible implementation manner of the sixth aspect, the second possible implementation manner of the sixth aspect, and the third possible implementation manner of the sixth aspect Or the fourth possible implementation of the sixth aspect,

 The receiving unit is further configured to receive a multi-hop link setup complete message sent by the second relay node. In a sixth possible implementation, the sixth aspect, the first possible implementation manner of the sixth aspect, the second possible implementation manner of the sixth aspect, and the third possible implementation manner of the sixth aspect Or the fourth possible implementation of the sixth aspect,

The receiving unit is further configured to receive, by the first relay node, the multi-hop link setup complete message that is forwarded by the second relay node, where the multi-hop link setup complete message passes the DRB Load The sending unit is further configured to send the multi-hop link setup complete message received by the receiving unit to the second relay node. According to a seventh aspect, a first relay node is provided, where the first relay node directly establishes a connection with a user equipment, and the method includes: at least one processor, a memory, a receiver, and a bus, where the bus is used to: Implementing a connection and communication between a processor, a memory, and a receiver, the memory being used to store program code and data executed by the processor;

 The receiver is configured to receive a first multi-hop link setup request message sent by the base station, where the processor is configured to complete the self according to the first multi-hop link setup request message received by the receiver. Configuring a link with the second relay node, and initiating uplink synchronization to the second relay node on a link between itself and the second relay node, to pass the second relay The node sends backhaul data to the base station. In a first possible implementation, in combination with the seventh aspect,

 The first multi-hop link setup request message received by the receiver includes: radio resource control protocol RRC configuration information of the first relay node, a carrier frequency of the second relay node, and the second Physical layer cell identifier PCI of the relay node;

 The processor is specifically configured to identify the second relay node according to a carrier frequency of the second relay node and a PCI of the second relay node, and according to an RRC configuration of the first relay node The information completes the configuration of the link with the second relay node.

 In a second possible implementation, in combination with the seventh aspect, the first relay node further includes a transmitter connected to the bus, where the transmitter is configured to send network load information to the base station, so that The base station acquires a network load status of the first relay node, where the network load information includes an access user equipment number of the first relay node and/or an occupancy rate of a physical resource block.

In a third possible implementation manner, in combination with the second possible implementation manner of the seventh aspect, The receiver is further configured to receive measurement control information sent by the base station, where the processor is further configured to perform signal quality on the second relay node according to the measurement control information received by the receiver Measuring and generating a measurement report; the transmitter is further configured to send the measurement report generated by the processor to the base station.

 In a fourth possible implementation, in combination with the seventh aspect, the transmitter is further configured to send a multi-hop link setup completion message to the second relay node. In a fifth possible implementation, in combination with the seventh aspect, the transmitter is further configured to send, by using the second relay node, the multi-hop link setup complete message to the base station, where The multi-hop link setup complete message is carried over the radio data bearer DRB. In an eighth aspect, a second relay node is provided, including: at least one processor, a memory, a receiver, a transmitter, and a bus, where the bus is used to implement a connection between a processor, a memory, a receiver, and a transmitter. And a communication, where the memory is used to store the program code and data executed by the processor; wherein the receiver is configured to receive a backhaul link setup request message sent by the base station;

The processor is configured to generate a backhaul link acknowledgement message according to the backhaul link request message received by the receiver, where the transmitter is configured to send the backhaul link acknowledgement message generated by the processor to The base station, so that the base station generates a second multi-hop link setup request message according to the backhaul link acknowledgement message; the receiver is further configured to receive the second multi-hop link setup sent by the base station a request message; the processor, further configured to: according to the second multi-hop link received by the receiver Establishing a request message to complete the configuration of the link between itself and the first relay node and the base station, and on the link between itself and the first relay node and the first relay node An uplink synchronization is established to forward the backhaul data sent by the first relay node to the base station.

 In the first possible implementation, in combination with the eighth aspect,

 The backhaul link request message received by the receiver includes at least one relay node request context, and the relay node request context includes: an identity identifier of the first relay node and the first relay node Radio access bearer to be accessed

E-RAB歹' J table;

 The backhaul link acknowledgement message generated by the processor includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, and an acknowledgement in the first relay node The accessed E-RAB list and the RRC configuration information of the first relay node;

 The processor is specifically configured to generate, according to an ID of the first relay node, a radio access bearer E-RAB list to be accessed in the first relay node, to determine the connection in the first relay node. And entering an E-RAB歹1 table, and generating RRC configuration information of the first relay node according to the determined E-RAB list.

 In a second possible implementation, in combination with the eighth aspect, the second multi-hop link setup request message received by the receiver includes: RRC configuration information of the second relay node, the second a maximum backhaul transmission bit rate of the relay node and a relay node ID list, where the relay node ID list includes an ID of the at least one first relay node, where the RRC configuration information of the second relay node includes the Configuration information required for the second relay node to establish a link with the first relay node and the base station;

The processor is specifically configured to identify the first relay node according to an ID of the first relay node, according to a maximum backhaul transmission bit rate of the second relay node, and a second relay node RRC configuration information completes itself and the first relay node and The configuration of the link between the base stations.

 In a third possible implementation, in combination with the eighth aspect, the transmitter is further configured to send an identity message to the base station, where the identity message is used to notify the base station that the second relay node supports Used in backhaul transmission in multi-hop links.

 In a fourth possible implementation, the eighth aspect, the first possible implementation manner of the eighth aspect, the second possible implementation manner of the eighth aspect, or the third possible implementation manner of the eighth aspect ,

 The receiver is further configured to receive a multi-hop link setup complete message sent by the first relay node, where the transmitter is further configured to send the multi-hop link completion message received by the receiver To the base station.

 In a fifth possible implementation, the eighth aspect, the first possible implementation manner of the eighth aspect, the second possible implementation manner of the eighth aspect, or the third possible implementation manner of the eighth aspect ,

 The receiver is further configured to receive a multi-hop link setup completion message sent by the base station.

 A ninth aspect provides a base station, including: at least one processor, a memory, a receiver, a transmitter, and a bus, where the bus is used to implement connection and communication between a processor, a memory, a receiver, and a transmitter, and the memory Used to store program code and data executed by the processor;

 The transmitter is configured to send a backhaul link request message to the second relay node, where the receiver is configured to receive a backhaul link acknowledgement message sent by the second relay node;

The processor is configured to generate a first multi-hop link setup request message and a second multi-hop link setup request message according to the backhaul link acknowledgement message received by the receiver, where the transmitter is further used to Constructing the second multi-hop link generated by the processor Sending a request message to the second relay node, so that the second relay node completes configuration of a link with the first relay node according to the second multi-hop link setup request message;

 Transmitting, by the processor, the first multi-hop link setup request message to the first relay node, so that the first relay node completes according to the first multi-hop link setup request message Configuration of a link between the second relay nodes.

 In a first possible implementation, in combination with the ninth aspect, the receiver is further configured to receive an identity message sent by the second relay node, where the identity message is used to notify the base station of the second The relay node is configured to be used for backhaul transmission in the multi-hop link; the transmitter is further configured to acquire network load information of the first relay node, and send the network load information to the first relay node according to the Sending the measurement control information, where the network load information includes the number of access user equipments of the first relay node and/or the occupancy rate of the physical resource block, and is used to indicate the network load status of the first relay node. The receiver is further configured to receive a measurement report sent by the first relay node. In a second possible implementation, in combination with the first possible implementation of the ninth aspect,

 The receiver is further configured to receive the network load information sent by the first relay node;

 The transmitter is further configured to acquire the network load information received by the receiver. In a third possible implementation, in combination with the first possible implementation of the ninth aspect,

The processor is further configured to measure a network load situation of the first relay node, and generate network load information of the first relay node according to the network load condition; the transmitter is further configured to acquire The network load information generated by the processor. In a fourth possible implementation manner, in combination with the first possible implementation manner of the ninth aspect,

 The processor is further configured to generate the backhaul link request message according to the identity message received by the receiver, the measurement report, and the network load information acquired by the sender. In a fifth possible implementation, the ninth aspect, the first possible implementation manner of the ninth aspect, the second possible implementation manner of the ninth aspect, and the third possible implementation manner of the ninth aspect Or the fourth possible implementation of the ninth aspect,

 The receiver is further configured to receive a multi-hop link setup complete message sent by the second relay node.

 In a sixth possible implementation, the ninth aspect, the first possible implementation manner of the ninth aspect, the second possible implementation manner of the ninth aspect, and the third possible implementation manner of the ninth aspect Or the fourth possible implementation of the ninth aspect,

 The receiver is further configured to receive, by the first relay node, the multi-hop link setup complete message that is forwarded by the second relay node, where the multi-hop link setup complete message is passed The transmitter is further configured to send the multi-hop link setup complete message received by the receiver to the second relay node. A tenth aspect, a wireless network system, including: at least one first relay node, at least one second relay node, and at least one base station; wherein the first relay node is any one of claims 20-25 The first relay node, wherein the second relay node is the second relay node according to any one of claims 26 to 31, and the base station is any one of claims 32 to 38. Base station

Or the first relay node is the first relay node according to any one of claims 39 to 44, and the second relay node is the second relay according to any one of claims 45 to 50. The base station is the base station according to any one of claims 51 to 57. An embodiment of the present invention provides a method, a device, and a system for establishing a wireless network, where a base station establishes a multi-hop link for a first relay node and a second relay node, so that the first relay node can pass the second The relay node implements data transmission with the base station, wherein the first relay node is used to transmit data for the user end, and the second relay node provides large backhaul capacity support, thereby achieving the purpose of increasing the backhaul capacity of the wireless network. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. 1 is a flowchart of a method for establishing a wireless network according to an embodiment of the present invention; FIG. 2 is a flowchart of another method for establishing a wireless network according to an embodiment of the present invention; FIG. 3 is provided according to an embodiment of the present invention. FIG. 4 is a schematic diagram of signaling interaction between each relay node and a base station according to an embodiment of the present invention; FIG. 5 is another schematic diagram of an embodiment of the present invention. FIG. 6 is a schematic structural diagram of a user plane stack protocol of each device in a method for establishing a wireless network according to an embodiment of the present invention; FIG. 7 is a schematic diagram of a user plane stack protocol configuration of each device in a method for establishing a wireless network according to an embodiment of the present invention; Schematic diagram of the control plane stack protocol structure of each device in the wireless network establishment method. FIG. 8 is a schematic structural diagram of a first relay node according to an embodiment of the present invention; FIG. 9 is a schematic structural diagram of a second relay node according to an embodiment of the present invention; FIG. 1 is a schematic structural diagram of a first relay node according to another embodiment of the present invention; FIG. 12 is a schematic structural diagram of a second relay node according to another embodiment of the present invention; FIG. 13 is a schematic structural diagram of a base station according to another embodiment of the present invention; FIG. FIG. 14 is a schematic structural diagram of a wireless network system according to an embodiment of the present invention. detailed description

 The technical solutions in the embodiments of the present invention are clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. An embodiment of the present invention provides a backhaul data transmission mode for LTE network coverage, which is used to improve the backhaul capacity of data transmission in a Relay scenario. Specifically, the embodiment of the present invention provides a method for establishing a wireless network, which is applied to A relay node, where the first relay node directly establishes a connection with the user equipment, and may also directly establish a connection with the base station. Referring to FIG. 1, the method specifically includes the following steps:

101. The first relay node receives a first multi-hop link setup request message sent by the base station. The first multi-hop link setup request message includes: RRC (Radio Resource Control) configuration information of the first relay node, a carrier frequency of the second relay node, and a Physical Cell ID (Physical Cell ID) Cell identification). The RRC configuration information of the first relay node includes configuration information required for the first relay node to establish a link with the second relay node. The first multi-hop link setup request message may further include a routing table of the first relay node and hop count or depth information of the first relay node located in the multi-hop link to which the first relay node belongs.

102. The first relay node completes the configuration of the link between itself and the second relay node according to the first multi-hop link setup request message, and performs a second link on the link between itself and the second relay node. The relay node initiates uplink synchronization to transmit backhaul data to the base station through the second relay node. Specifically, the first relay node identifies the second relay node according to the carrier frequency of the second relay node and the physical layer cell identifier PCI of the second relay node, and completes and processes according to the RRC configuration information of the first relay node. The configuration of the link between the two relay nodes. An embodiment of the present invention provides another method for establishing a wireless network, which is applied to a second relay node. Referring to FIG. 2, the method specifically includes the following steps:

201. The second relay node receives a backhaul link request message sent by the base station. The backhaul link request message includes at least one relay node request context, and the relay node request context includes: an ID (identity) of the first relay node and an E-to-be-accessed in the first relay node. RAB (Evolved Radio Access Bearer) list. The message may also include an IP routing indication, the IP routing indication is used to notify the second relay node to support the IP routing service in the multi-hop link.

202. The second relay node generates a backhaul link acknowledgement message according to the backhaul link request message, and sends a backhaul link acknowledgement message to the base station, so that the base station generates a second multi-hop link setup request message according to the backhaul link acknowledgement message. The backhaul link acknowledgement message includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, an E-RAB list that is confirmed to be accessible in the first relay node, and a first RRC configuration information of the relay node. Specifically, the second relay node generates an E-type determined to be accessed in the first relay node according to the identity identifier ID of the first relay node and the radio access bearer E-RAB list to be accessed in the first relay node. The RAB歹1 table, and generates RRC configuration information of the first relay node according to the determined E-RAB list.

203. The second relay node receives a second multi-hop link setup request message sent by the base station. The second multi-hop link setup request message includes: RRC configuration information of the second relay node, a maximum backhaul transmission bit rate of the second relay node, and a relay node ID list, where the relay node ID list includes at least one The ID of the first relay node. The RRC configuration information of the second relay node includes configuration information required by the second relay node to establish a link with the first relay node and the base station. The message may also include a routing table for the second relay node and hop count or depth information in which the second relay node is located in the multi-hop link to which it belongs.

204. The second relay node completes the configuration of the link between the first relay node and the base station according to the second multi-hop link setup request message, and is on the link between itself and the first relay node. Performing uplink synchronization with the first relay node to forward the backhaul data sent by the first relay node to the base station. Specifically, the second relay node identifies the first relay section according to the ID of the first relay node. Point, according to the maximum backhaul transmission bit rate of the second relay node and the second relay node

The RRC configuration information completes the configuration of the link between itself and the first relay node and the base station. An embodiment of the present invention provides a method for establishing a wireless network, which is applied to a base station. Referring to FIG. 3, the following steps are specifically included:

301. The base station sends a backhaul link request message to the second relay node. The backhaul link request message includes at least one relay node request context, and the relay node request context includes: an ID of the first relay node and an E-RAB list to be accessed in the first relay node. The message may also include an IP routing indication, which is used to notify the second relay node to support the IP routing service in the multi-hop link.

302. The base station receives a backhaul link acknowledgement message sent by the second relay node. The backhaul link acknowledgement message includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, an E-RAB list of the first relay node confirming the access, and the first middle Following the RRC configuration information of the node. The RRC configuration information of the first relay node is established by the second relay node according to the backhaul link request message.

303. The base station generates a second multi-hop link setup request message according to the backhaul link acknowledgement message, and sends a second multi-hop link setup request message to the second relay node, so that the second relay node is configured according to the second multi-hop link. The setup request message completes the configuration of the link with the first relay node. The message includes: RRC configuration information of the second relay node, a maximum backhaul transmission bit rate of the second relay node, and a relay node ID list, where the relay node ID list includes an ID of the at least one first relay node. The RRC configuration information of the second relay node includes configuration information required by the second relay node to establish a link with the first relay node and the base station, and the message may further include a routing table and/or a second relay node. The hop count or depth coefficient at which the two relay nodes are located in the multi-hop link to which they belong.

304. The base station generates a first multi-hop link setup request message according to the backhaul link acknowledgement message, and sends a first multi-hop link setup request message to the first relay node, so that the first relay node is configured according to the first multi-hop link. Establishing a request message to complete the chain with the second relay node The configuration of the road. The message includes: RRC configuration information of the first relay node, a routing table of the first relay node, a carrier frequency of the second relay node, and a PCI. The RRC configuration information of the first relay node includes configuration information required for the first relay node to establish a link with the second relay node. The message may also include the number of hops or depth coefficients at which the first relay node is located in the multi-hop link to which it belongs. An embodiment of the present invention provides a method for establishing a wireless network, where a base station establishes a multi-hop link for a first relay node and a second relay node, so that the first relay node can The base station transmits data, wherein the first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network. The embodiment of the present invention specifically provides a method for establishing a wireless network, which is applied to an LTE communication network system, where the wireless network includes a base station, a first relay node, a second relay node, and a user equipment. The first relay node and the user equipment directly establish a connection, and establish a connection with the base station, the second relay node establishes a connection with the base station and the first relay node, and the second relay node provides a backhaul during the transmission of the backhaul data. Capacity support. The connection between each relay node and the base station is controlled by an MME (Mobility Management Entity) and a base station, and the role of the P-GW (Packet Data Network Gateway) is to allocate an IP address and ensure QOS. According to the PCRF (Policy and Charging Rules Function), traffic-based charging is performed. The monitoring and maintenance of the entire network is undertaken by OAM (Operation Administration and Maintenance). ΜΜΕ Mainly implements the functions of the control plane, including: mobility management, access signaling, bearer management, roaming management, etc. The S-GW mainly handles data forwarding on the bearer plane. The signaling interaction between each relay node and the base station is as shown in FIG. 4 . For details, refer to the embodiment, which specifically includes the following steps:

401. The second relay node sends an identity message to the base station. The identity message is used to inform the base station that the second relay node supports backhaul transmission in the multi-hop link, and the message is carried by the RRC message. 402. The base station acquires network load information of the first relay node. Specifically, the preferred solution is that the base station measures the network load of the first relay node, and directly obtains the network load information of the first relay node. It is also possible that the first relay node transmits its own network load information to the base station. The network load information is used to indicate the network load status of the first relay node, where the information includes the number of access user equipments of the first relay node and/or the occupancy rate of the physical resource block, if the network load of the first relay node is If it is too high, the base station will determine the first relay node as a candidate node.

403. The base station sends measurement control information to the first relay node according to the network load information sent by the first relay node. The measurement control information includes a measurement event, a carrier frequency of the second relay node to be measured, and a PCI, a carrier frequency of the second relay node to be measured, and a second relay node used by the PCI to identify the measurement, and the measurement event. And configured to indicate that the first relay node measures the signal quality of the second relay node, and when the corresponding measurement event satisfies the reporting standard, that is, the signal transmission quality between the first relay node and the second relay node reaches a preset The threshold of the data backhaul transmission, the first relay node feeds back the measurement report to the base station.

404. After receiving the measurement control information sent by the base station, the first relay node measures the signal quality of the second relay node according to the measurement control information, generates and sends a measurement report to the base station. The base station determines the first relay node as the target node according to the measurement report, that is, determines that the first relay node establishes a multi-hop link with the second relay node.

405. The base station generates and sends a backhaul link request message to the second relay node according to the received identity information, the network load information, and the measurement report. The backhaul link request message includes at least one relay node request context, and the relay node request context includes: an ID of the first relay node and an E-RAB list to be accessed in the first relay node. The message may also include an IP routing indication, the IP routing indication is used to notify the second relay node to support the IP routing service in the multi-hop link. The backhaul link request message contains the request context of each first relay node that needs to establish a backhaul link, and the second relay node can determine and select support for which of the first relay nodes can provide backhaul capacity. Therefore, the backhaul link request message includes a request context of a plurality of relay nodes, and in each context, the ID of the first relay node is used to identify the first relay node, and the first relay node is to be accessed. The E-RAB list provides a channel through which the first relay node establishes a link with the second relay node. Based on the information, the second relay node determines which first relay nodes and which E-RABs of the first relay node can be accessed and reserves corresponding resources for completing the access, and the second relay node according to the second relay node The backhaul link request message establishes RRC configuration information of the first relay node.

 406. The second relay node sends a backhaul link acknowledgement message to the base station.

 The backhaul link acknowledgement message includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, an E-RAB list of the first relay node confirming the access, and the first middle Following the RRC configuration information of the node. The RRC configuration information of the first relay node includes configuration information required for the first relay node to establish a link with the second relay node.

 The backhaul link acknowledgment message includes an acknowledgment context for each of the first relay nodes with which the second relay node confirms that a link can be established.

 407. The base station completes configuration of a link between itself and the second relay node according to the backhaul link acknowledgement message.

 The configuration specifically includes the base station reserving resources required for establishing an Un interface with the second relay node, and the base station updating the routing table of the first relay node.

408. The base station generates, according to the backhaul link acknowledgement message, and sends a second multi-hop link setup request message to the second relay node. The message includes: RRC configuration information of the second relay node, a maximum backhaul transmission bit rate of the second relay node, and a relay node ID list, where the relay node ID list includes an ID of the at least one first relay node. The RRC configuration information of the second relay node includes configuration information required by the second relay node to establish a link with the first relay node and the base station. The message may also include a routing table of the second relay node and/or a hop count of the second relay node in the multi-hop link to which it belongs or Depth factor.

 The maximum backhaul transmission bit rate of the second relay node is used to indicate the backhaul transmission capability of the second relay node, and the relay node ID list is used to identify the second relay node to identify each of the first links with which the link needs to be established. The relay node, the routing table of the second relay node records a routing table of each first relay node that establishes a link with the second relay node, and is used to indicate the transmission path of the backhaul data to the second relay node. The second relay node may generate a routing table of the second relay node according to the backhaul link request message sent by the base station. In this case, the second multi-hop link setup request message sent by the base station does not need to include the second relay node. The routing table, if the second relay node does not generate the routing table of the second relay node itself, the second multi-hop link establishment request message needs to include the routing table of the second relay node.

409. The base station generates, according to the backhaul link acknowledgement message, and sends a first multi-hop link setup request message to the first relay node. The message includes: RRC configuration information of the first relay node, a carrier frequency of the second relay node, and PCI. The RRC configuration information of the first relay node includes configuration information required for the first relay node to establish a link with the second relay node, and the carrier frequency of the second relay node and the PCI are used to enable the first relay. The node identifies a second relay node with which to establish a link. The message may also include a routing table of the first relay node and/or a hop count or depth coefficient in which the first relay node is located in the multi-hop link to which the first relay node belongs, and the routing table of the first relay node records the first A path through which the relay node transmits data in the multi-hop link in which it is located, for indicating the transmission path of the backhaul data to the first relay node.

410. The second relay node completes the configuration of the link between the first relay node and the base station according to the second multi-hop link setup request message sent by the base station.

41. The first relay node completes the configuration of the link between itself and the second relay node according to the first multi-hop link setup request message sent by the base station.

412. The first relay node initiates uplink synchronization to the second relay node on a link between itself and the second relay node, so as to send backhaul data to the base station by using the second relay node. For the transmission of the user plane data, after the step 411 is passed, the first relay node completes The configuration of the link between the self and the second relay node. At this time, the first relay node does not upload the data sent by the received user equipment, but first caches the received data, and waits for the first step 412. The relay node side and the second relay node establish uplink synchronization, and then perform backhaul data transmission.

413. After the first relay node establishes uplink synchronization with the second relay node, send a multi-hop link setup complete message to the second relay node. The message is carried by the RRC control signaling, that is, the message is carried by the SRB (Signaling Radio Bearer). The SRB assumes RRC signaling between the base station and the relay node.

414. After receiving the multi-hop link setup complete message sent by the first relay node, the second relay node sends a multi-hop link setup complete message to the base station. The multi-hop link completion message is carried by the RRC control signaling. An embodiment of the present invention provides a method for establishing a wireless network, where a base station establishes a multi-hop link for a first relay node and a second relay node, so that the first relay node can The base station transmits data, where the first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network. The embodiment of the present invention specifically provides another wireless network establishment method, which is applied to an LTE communication network system, where the wireless network includes a base station, a first relay node, a second relay node, a base station, and a user equipment. The first relay node and the user equipment directly establish a connection, and establish a connection with the base station, and the second relay node establishes a connection with the base station and the first relay node to provide backhaul capacity support during the transmission of the backhaul data. Another signaling interaction between each relay node and the base station is shown in FIG. 5. For details, refer to the embodiment, which specifically includes the following steps:

501. The second relay node sends an identity message to the base station. The identity message is used to inform the base station that the second relay node supports backhaul transmission in the multi-hop link, and the message is carried by the RRC message. 502. The base station acquires network load information of the first relay node. Specifically, the preferred solution is that the base station measures the network load of the first relay node, and directly obtains the network load information of the first relay node. It is also possible that the first relay node transmits its own network load information to the base station. The network load information is used to indicate the network load status of the first relay node, where the information includes the number of access user equipments of the first relay node and/or the occupancy rate of the physical resource block, if the network load of the first relay node is If it is too high, the base station will determine the first relay node as a candidate node.

503. The base station sends measurement control information to the first relay node according to the network load information sent by the first relay node. The measurement control information includes a measurement event, a carrier frequency of the second relay node to be measured, and a PCI, a carrier frequency of the second relay node to be measured, and a second relay node used by the PCI to identify the measurement, and the measurement event. And configured to indicate that the first relay node measures the signal quality of the second relay node, and when the corresponding measurement event satisfies the reporting standard, that is, the signal transmission quality between the first relay node and the second relay node reaches a preset The threshold of the data backhaul transmission, the first relay node feeds back the measurement report to the base station.

504. After receiving the measurement control information sent by the base station, the first relay node measures the signal quality of the second relay node according to the measurement control information, generates and sends a measurement report to the base station. The base station determines the first relay node as the target node according to the measurement report, that is, determines that the first relay node establishes a multi-hop link with the second relay node.

505. The base station generates and sends a backhaul link request message to the second relay node according to the received identity information, the network load information, and the measurement report. The backhaul link request message includes at least one relay node request context, and the relay node request context includes: an ID of the first relay node and an E-RAB list to be accessed in the first relay node. The message may also include an IP routing indication, the IP routing indication is used to notify the second relay node to support the IP routing service in the multi-hop link. The backhaul link request message contains the request context of each first relay node that needs to establish a backhaul link, and the second relay node can determine and select support for which of the first relay nodes can provide backhaul capacity. Therefore, the backhaul link request message includes a request context of a plurality of relay nodes, and in each context, the ID of the first relay node is used to identify the first relay node, and the first relay node is to be accessed. The E-RAB list provides a channel through which the first relay node establishes a link with the second relay node. Based on the information, the second relay node determines which first relay nodes and which E-RABs of the first relay node can be accessed and reserves corresponding resources for completing the access, and the second relay node according to the second relay node The backhaul link request message establishes RRC configuration information of the first relay node.

 506. The second relay node sends a backhaul link acknowledgement message to the base station.

 The backhaul link acknowledgement message includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, an E-RAB list of the first relay node confirming the access, and the first middle Following the RRC configuration information of the node. The RRC configuration information of the first relay node includes configuration information required for the first relay node to establish a link with the second relay node.

 The backhaul link acknowledgment message includes an acknowledgment context for each of the first relay nodes with which the second relay node confirms that a link can be established.

 507. The base station completes configuration of a link between itself and the second relay node according to the backhaul link acknowledgement message.

 The configuration specifically includes the base station reserving resources required for establishing an Un interface with the second relay node, and the base station updating the routing table of the first relay node.

508. The base station generates, according to the backhaul link acknowledgement message, and sends a second multi-hop link setup request message to the second relay node. The message includes: RRC configuration information of the second relay node, a maximum backhaul transmission bit rate of the second relay node, and a relay node ID list, where the relay node ID list includes an ID of the at least one first relay node. The RRC configuration information of the second relay node includes configuration information required for the second relay node to establish a link with the first relay node and the base station. The message may also include a routing table of the second relay node and/or a hop count or depth of the second relay node located in the multi-hop link to which the second relay node belongs Degree coefficient.

 The maximum backhaul transmission bit rate of the second relay node is used to indicate the backhaul transmission capability of the second relay node, and the relay node ID list is used to identify the second relay node to identify each of the first links with which the link needs to be established. The relay node, the routing table of the second relay node records a routing table of each first relay node that establishes a link with the second relay node, and is used to indicate the transmission path of the backhaul data to the second relay node. The second relay node may generate a routing table of the second relay node according to the backhaul link request message sent by the base station. In this case, the second multi-hop link setup request message sent by the base station does not need to include the second relay node. The routing table, if the second relay node does not generate the routing table of the second relay node itself, the second multi-hop link establishment request message needs to include the routing table of the second relay node.

509. The base station generates, according to the backhaul link acknowledgement message, and sends a first multi-hop link setup request message to the first relay node. The message includes: RRC configuration information of the first relay node, a carrier frequency of the second relay node, and PCI. The RRC configuration information of the first relay node includes configuration information required for the first relay node to establish a link with the second relay node, and the carrier frequency of the second relay node and the PCI are used to enable the first relay. The node identifies a second relay node with which to establish a link. The message may also include a routing table of the first relay node and/or a hop count or depth coefficient in which the first relay node is located in the multi-hop link to which the first relay node belongs, and the routing table of the first relay node records the first A path through which the relay node transmits data in the multi-hop link in which it is located, for indicating the transmission path of the backhaul data to the first relay node.

510. The second relay node completes the configuration of the link between the first relay node and the base station according to the second multi-hop link setup request message sent by the base station.

The first relay node completes the configuration of the link between itself and the second relay node according to the first multi-hop link setup request message sent by the base station.

512. The first relay node initiates uplink synchronization to the second relay node on the link between itself and the second relay node, so as to send backhaul data to the base station by using the second relay node. For the transmission of the user plane data, after the step 511 is passed, the first relay node completes The configuration of the link between the self and the second relay node. At this time, the first relay node does not upload the data sent by the received user equipment, but first caches the received data, and waits for the first step 512. The relay node side and the second relay node establish uplink synchronization, and then perform backhaul data transmission.

513. After the first relay node establishes uplink synchronization with the second relay node, the second relay node sends a multi-hop link setup complete message to the base station by using the second relay node. The message is carried by the data radio bearer DRB.

514. After the multi-hop link establishment complete message sent by the second relay node sent by the first relay node of the base station, send a multi-hop link setup complete message to the second relay node. An embodiment of the present invention provides a method for establishing a wireless network, where a base station establishes a multi-hop link for a first relay node and a second relay node, so that the first relay node can The base station transmits data, where the first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

The stack protocol structure, as shown in FIG. 6, the protocol stack of the user, the first relay node, the base station, and the S-GW is a prior art, and is not described in detail herein. For the protocol stack of the second relay node, the connection side for the first relay node includes the following layers: IP, PDCP (Packet Data Convergence Protocol), RLC (Radio Link Control) Protocol, MAC (Media Access Control), PHY (Physical Layer), where the base station connection side includes the following layers: IP, PDCP, RLC, MAC, PHY.

The stack protocol structure is shown in Figure 7. For the protocol stack of the second relay node, the connection side for the first relay node includes the following layers: IP, PDCP, RLC, MAC, PHY; wherein the connection side for the base station includes the following layers: IP, RLC, MAC, PHY.

The second relay node forwards the IP layer user plane data packet or the control plane data packet between the first relay node and the base station, that is, the air interface data sent by the receiving base station (or the first relay node) The data is parsed, and the IP protocol layer data packet is forwarded to the first relay node according to the destination address.

(or base station). An embodiment of the present invention provides a first relay node. Referring to FIG. 8, the first relay node 80 directly establishes a connection with a user equipment, and includes a receiving unit 801 and a configuration unit 803 connected to each other.

 The receiving unit 801 is configured to receive a first multi-hop link setup request message sent by the base station.

 The configuration unit 803 is configured to complete the configuration of the link between the self and the second relay node according to the first multi-hop link setup request message received by the receiving unit 801, and link between the self and the second relay node. Uplink synchronization is initiated to the second relay node to send backhaul data to the base station through the second relay node.

 The first relay node provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit to the base station by using the second relay node. Data, where the first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

Further, the first multi-hop link setup request message received by the receiving unit 801 includes: radio resource control protocol RRC configuration information of the first relay node 80, a carrier frequency of the second relay node, and a physicality of the second relay node. The layer cell identifies the PCI. The configuration unit 803 is specifically configured to identify the second relay node according to the carrier frequency of the second relay node and the PCI of the second relay node, and complete the second relay node according to the RRC configuration information of the first relay node 80. The configuration of the link between. Optionally, the first relay node 80 further includes a measurement unit 804 connected to the receiving unit 801, and a sending unit 802 connected to the measuring unit 804. The sending unit 802 is configured to send network load information to the base station, so that the base station acquires a network load status of the first relay node 80, where the network load information includes the number of access user equipments and/or physical of the first relay node 80. The occupancy rate of resource blocks. The receiving unit 801 is further configured to receive measurement control information sent by the base station. The measuring unit 804 is configured to measure the signal quality of the second relay node according to the measurement control information received by the receiving unit 801 and generate a measurement report. The sending unit 802 is further configured to send the measurement report generated by the measuring unit 804 to the base station.

 Optionally, the sending unit 802 is further configured to send a multi-hop link setup complete message to the second relay node. Or, the sending unit 802 is further configured to send, by using the second relay node, a multi-hop link setup complete message to the base station, where the multi-hop link setup complete message is carried by the radio data bearer DRB.

 The first relay node provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit to the base station by using the second relay node. Data, where the first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

 The embodiment of the present invention provides a second relay node 90. Referring to FIG. 9, the second relay node 90 includes a receiving unit 901, a sending unit 902, a configuration unit 903, and an analyzing unit 904. The receiving unit 901 is connected to the sending unit 902, the configuring unit 903, and the analyzing unit 904, respectively, and the analyzing unit 904 and the transmitting unit 902 are connected to each other.

The receiving unit 901 is configured to receive a backhaul link setup request message sent by the base station. The analyzing unit 904 is configured to generate a backhaul link acknowledgement message according to the backhaul link setup request message received by the receiving unit 901. The sending unit 902 is configured to send the backhaul link acknowledgement message generated by the analyzing unit 904 to the base station, so that the base station generates a second multi-hop link setup request message according to the backhaul link acknowledgement message. The receiving unit 901 is further configured to receive a second multi-hop link setup request message sent by the base station. The configuration unit 903 is configured to be configured according to the second multi-hop link received by the receiving unit 901 The request message completes the configuration of the link between itself and the first relay node and the base station, and establishes uplink synchronization with the first relay node on the link between itself and the first relay node, so as to forward to the base station Backhaul data sent by the first relay node.

 The second relay node provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit to the base station by using the second relay node. Data, where the first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

 Further, the backhaul link request message received by the receiving unit 901 includes at least one relay node request context, and the relay node request context includes: an identity identifier ID of the first relay node and a wireless to be accessed in the first relay node Access bearer E-RAB list. The backhaul link acknowledgement message generated by the analysis unit 904 includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, an E-RAB list of the first relay node confirming the access, and a RRC configuration information of a relay node. The analyzing unit 904 is specifically configured to generate, according to the ID of the first relay node and the radio access bearer E-RAB list to be accessed in the first relay node, the E-RAB that is determined to be accessed in the first relay node. And generating RRC configuration information of the first relay node according to the determined E-RAB list.

 The second multi-hop link setup request message received by the receiving unit 901 includes: RRC configuration information of the second relay node 90, a maximum backhaul transmission bit rate of the second relay node 90, and a relay node ID list, and a relay node ID. The list includes an ID of the at least one first relay node, where the RRC configuration information of the second relay node 90 includes configuration information required by the second relay node 90 to establish a link with the first relay node and the base station. The configuration unit 903 is specifically configured to identify the first relay node according to the ID of the first relay node, complete the self and the first according to the maximum backhaul transmission bit rate of the second relay node 90 and the RRC configuration information of the second relay node 90. A configuration of a relay node and a link with the base station.

The sending unit 902 is further configured to send an identity message to the base station, where the identity message is used to The base station second relay node 90 is supported for backhaul transmission in a multi-hop link. Optionally, the receiving unit 901 is further configured to receive a multi-hop link setup complete message sent by the first relay node. The sending unit 902 is further configured to send the multi-hop link setup complete message received by the receiving unit 901 to the base station.

 Alternatively, the receiving unit 901 is further configured to receive a multi-hop link setup complete message sent by the base station.

 The second relay node provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit to the base station by using the second relay node. Data, where the first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

 An embodiment of the present invention provides a base station 100. Referring to FIG. 10, the base station 100 includes a transmitting unit 1002, a receiving unit 1001, and an analyzing unit 1003. The transmitting unit 1002 is connected to the receiving unit 1001 and the analyzing unit 1003, and the receiving unit 1001 and the analyzing unit 1003 are connected to each other.

 The sending unit 1002 is configured to send a backhaul link request message to the second relay node. The receiving unit 1001 is configured to receive a backhaul link acknowledgement message sent by the second relay node. The analyzing unit 1003 is configured to generate a first multi-hop link setup request message and a second multi-hop link setup request message according to the backhaul link acknowledgement message received by the receiving unit 1001.

The sending unit 1002 is further configured to send the second multi-hop link setup request message generated by the analyzing unit 1003 to the second relay node, so that the second relay node completes and the first according to the second multi-hop link setup request message. The configuration of the link between the relay nodes. Sending, by the analyzing unit 1003, a first multi-hop link setup request message to the first relay node, so that the first relay node completes according to the first multi-hop link setup request message. Configuration of the link with the second relay node.

 The base station provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit data to the base station by using the second relay node, where the first A relay node is used to transmit data for the UE, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

 Optionally, the receiving unit 1001 is further configured to receive an identity message sent by the second relay node, where the identity message is used to notify the base station 100 that the second relay node supports the backhaul transmission in the multi-hop link. The sending unit 1002 is further configured to acquire network load information of the first relay node, and send measurement control information to the first relay node according to the network load information, where the network load information includes the number of access user equipments of the first relay node. And/or the occupancy rate of the physical resource block, used to indicate the network load status of the first relay node. The receiving unit 1001 is further configured to receive a measurement report sent by the first relay node. Further, the receiving unit 1001 is further configured to receive network load information sent by the first relay node. The sending unit 1002 is further configured to acquire network load information received by the receiving unit 1001.

 Or the base station 100 further includes a measurement unit 1004 connected to the sending unit 1002, where the measuring unit 1004 is configured to measure a network load condition of the first relay node, and generate network load information of the first relay node according to the network load condition. . The sending unit 1002 is further configured to acquire network load information generated by the measuring unit 1004.

Optionally, the analyzing unit 1003 is further configured to generate a backhaul link request message according to the identity message received by the receiving unit 1001 and the measurement report and the network load information acquired by the sending unit 1002. Optionally, the receiving unit 1001 is further configured to receive the multi-hop sent by the second relay node. Link establishment completion message.

 Alternatively, the receiving unit 1001 is further configured to receive, by the first relay node, a multi-hop link setup complete message that is forwarded by the second relay node, where the multi-hop link setup complete message is carried by the DRB. The sending unit 1002 is further configured to send the multi-hop link setup complete message received by the receiving unit 1001 to the second relay node.

 The base station provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit data to the base station by using the second relay node, where the first A relay node is used to transmit data for the UE, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

 Another embodiment of the present invention provides a first relay node. Referring to FIG. 11, the first relay node may be embedded or itself a microprocessor computer, such as a general purpose computer, a custom machine, a mobile terminal, or a tablet. The first relay node 1101 includes at least one processor 1111, a memory 1112, a bus 1113, and a receiver 1114. The at least one processor 1111, the memory 1112, and the receiver 1114 are connected by a bus 1113 and complete each other. The communication is used to store program code and data executed by the processor.

 The bus 1113 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA). Bus, etc. The bus 1113 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 11, but it does not mean that there is only one bus or one type of bus. Its towel:

 Memory 1112 is for storing executable program code, the program code including computer operating instructions. The memory 1112 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.

The processor 1111 may be a central processing unit 1111 (Central Processing Unit, abbreviated as CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.

 The receiver 1114 is configured to receive a first multi-hop link setup request message sent by the base station.

 The processor 1111 completes the configuration of the link between itself and the second relay node according to the first multi-hop link setup request message received by the receiver 1114, and on the link between itself and the second relay node. The second relay node initiates uplink synchronization to transmit backhaul data to the base station through the second relay node.

 The first relay node provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit to the base station by using the second relay node. Data, where the first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

 Further, the first multi-hop link setup request message received by the receiver 1114 includes: radio resource control protocol RRC configuration information of the first relay node, a carrier frequency of the second relay node, and a physical layer of the second relay node. The cell identifies the PCI. The processor 1111 specifically identifies the second relay node according to the carrier frequency of the second relay node and the PCI of the second relay node, and completes the link with the second relay node according to the RRC configuration information of the first relay node. Configuration.

 Optionally, the first relay node further includes a transmitter 1115 connected to the bus.

 The transmitter 1115 sends the network load information to the base station, so that the base station acquires the network load status of the first relay node, where the network load information includes the number of access user equipments of the first relay node and/or the occupancy rate of the physical resource blocks.

 Receiver 1114 receives measurement control information transmitted by the base station. The processor 1111 measures the signal quality of the second relay node based on the measurement control information received by the receiver 1114 and generates a measurement report.

 The transmitter 1115 transmits the measurement report generated by the processor 1111 to the base station.

Optionally, the transmitter 1115 sends the multi-hop link setup completion to the second relay node. Interest.

 Alternatively, the transmitter 1 1 15 sends a multi-hop link setup complete message to the base station through the second relay node, where the multi-hop link setup complete message is carried by the radio data bearer DRB.

 The first relay node provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit to the base station by using the second relay node. Data, where the first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

 Another embodiment of the present invention provides a second relay node. As shown in FIG. 12, the second relay node may be embedded or itself a microprocessor computer, such as a general purpose computer, a custom machine, a mobile terminal, or a tablet. The second relay node 1201 includes: at least one processor 121 1 , a memory 1212 , a bus 1213 , a receiver 1214 , and a transmitter 121 5 , the at least one processor 121 1 , the memory 1212 , and the receiver 1214 . The transmitter 1215 is connected to and communicates with each other via a bus 1213 for storing program codes and data executed by the processor.

 The bus 1213 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA). Bus, etc. The bus 1213 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 12, but it does not mean that there is only one bus or one type of bus. Its towel:

 Memory 1212 is for storing executable program code, the program code including computer operating instructions. The memory 1212 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.

The processor 121 1 may be a central processing unit (C1) (Central Processing Unit, abbreviated as CPU), or an Application Specific Integrated Circuit (ASIC), or a device configured to implement the embodiment of the present invention. Or multiple integrated circuits. The receiver 1214 receives the backhaul link setup request message sent by the base station. The processor 1211 generates a backhaul link acknowledgement message based on the backhaul link request message received by the receiver 1214. The transmitter 1215 transmits a backhaul link acknowledgement message generated by the processor 121 1 to the base station, so that the base station generates a second multi-hop link setup request message according to the backhaul link acknowledgement message.

 The receiver 1214 receives the second multi-hop link setup request message sent by the base station. The processor 121 1 completes the configuration of the link between itself and the first relay node and the base station according to the second multi-hop link setup request message received by the receiver 1214, and performs a chain between itself and the first relay node. The uplink synchronization is established on the road with the first relay node, so as to forward the backhaul data sent by the first relay node to the base station.

 The second relay node provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit to the base station by using the second relay node. Data, where the first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

 Further, the backhaul link request message received by the receiver 1214 includes at least one relay node request context, and the relay node request context includes: the identity identifier ID of the first relay node and the wireless to be accessed in the first relay node Access bearer E-RAB list. The backhaul link acknowledgement message generated by the processor 1211 includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, an E-RAB list of the first relay node confirming the access, and a RRC configuration information of a relay node. The processor 121 1 is specifically configured to generate, according to the ID of the first relay node and the radio access bearer E-RAB list to be accessed in the first relay node, the E-RAB that is determined to be accessed in the first relay node. l Table, and generating RRC configuration information of the first relay node according to the determined E-RAB list.

The second multi-hop link setup request message received by the receiver 1214 includes: RRC configuration information of the second relay node, maximum backhaul transmission bit rate of the second relay node, and relay a node ID list, where the relay node ID list includes an ID of the at least one first relay node, where the RRC configuration information of the second relay node includes the second relay node required to establish a link with the first relay node and the base station Configuration information. The processor 121 1 is specifically configured to identify the first relay node according to the ID of the first relay node, and complete the self and the first according to the maximum backhaul transmission bit rate of the second relay node and the RRC configuration information of the second relay node. The configuration of the link between the relay node and the base station.

 Transmitter 1215 sends an identity message to the base station, the identity message being used to inform the base station that the second relay node supports backhaul transmission in the multi-hop link.

 Optionally, the receiver 1214 receives the multi-hop link setup completion message sent by the first relay node.

 Transmitter 1215 transmits a multi-hop link setup complete message received by receiver 1214 to the base station.

 Alternatively, the receiver 1214 receives the multi-hop link setup complete message sent by the base station. The second relay node provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit to the base station by using the second relay node. Data, where the first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

 Another embodiment of the present invention provides a base station. Referring to FIG. 13, the base station can be embedded or itself a microprocessor computer, such as a general-purpose computer, a custom machine, a mobile phone terminal, or a tablet device. The base station 1301 The method includes: at least one processor 13 1 1 , a memory 13 12 , a bus 13 13 , a receiver 13 14 , and a transmitter 13 15 , the at least one processor 13 1 1 , the memory 13 12 , the receiver 13 14 , and the transmitter 13 15 The communication is performed by a bus 13 13 for storing program codes and data executed by the processor.

The bus 13 13 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA). ) Bus, etc. The bus 13 13 Can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is shown in Figure 13, but it does not mean that there is only one bus or one type of bus. Its towel:

 Memory 1312 is for storing executable program code, the program code including computer operating instructions. The memory 1312 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.

 The processor 1311 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Integrated circuits.

 The transmitter 1315 sends a backhaul link request message to the second relay node. The receiver 1314 receives the backhaul link acknowledgement message sent by the second relay node. The processor 1311 generates a first multi-hop link setup request message and a second multi-hop link setup request message based on the backhaul link acknowledgement message received by the receiver 1314. The transmitter 1315 sends the processor 1311 to generate a second multi-hop link setup request message to the second relay node, so that the second relay node completes the connection with the first relay node according to the second multi-hop link setup request message. Link configuration. Transmitting, by the processor 1311, a first multi-hop link setup request message to the first relay node, so that the first relay node completes the link with the second relay node according to the first multi-hop link setup request message. Configuration.

 The base station provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit data to the base station by using the second relay node, where the first A relay node is used to transmit data for the UE, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

Optionally, the receiver 1314 receives the identity message sent by the second relay node, and the identity message is used to notify the base station that the second relay node supports the backhaul transmission in the multi-hop link. The transmitter 1315 obtains network load information of the first relay node, according to the network load The information sends measurement control information to the first relay node, where the network load information includes the number of access user equipments of the first relay node and/or the occupancy rate of the physical resource blocks indicating the network load status of the first relay node. The receiver 1314 receives the measurement report sent by the first relay node.

 Further, the receiver 1314 receives the network load information sent by the first relay node. The transmitter 1315 acquires network load information received by the receiver 1314.

 Alternatively, the processor 1311 measures the network load condition of the first relay node, and generates network load information of the first relay node according to the network load condition.

 The transmitter 1315 acquires network load information generated by the processor 1311. Optionally, the processor 1311 is further configured to generate a backhaul link request message according to the identity message received by the receiver 1314 and the measurement report and the network load information acquired by the transmitter 1315.

 Optionally, the receiver 1314 receives the multi-hop link setup completion message sent by the second relay node.

 Alternatively, the receiver 1314 receives the multi-hop link setup complete message sent by the first relay node and forwarded by the second relay node, where the multi-hop link setup complete message is carried by the DRB.

 The transmitter 1315 transmits a multi-hop link setup complete message received by the receiver 1314 to the second relay node.

 The base station provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit data to the base station by using the second relay node, where the first A relay node is used to transmit data for the UE, thereby achieving the purpose of increasing the backhaul capacity of the wireless network.

 An embodiment of the present invention provides a wireless network system. Referring to FIG. 14, the wireless network system 1401 includes: at least one first relay node 1411, at least one second relay node 1412, and at least one base station 1413.

The first relay node 1411 is the first one described in any embodiment corresponding to FIG. 8. Relay node.

 The second relay node 1412 is the second relay node described in any of the embodiments corresponding to FIG.

 The base station 1413 is the base station described in any of the embodiments corresponding to FIG.

 Alternatively, the first relay node 141 1 point is the first relay node described in any of the embodiments corresponding to FIG.

 The second relay node 1412 is the second relay node described in any of the embodiments corresponding to FIG.

 The base station 1413 is the base station described in any of the embodiments corresponding to FIG.

 The specific working principle can be referred to the above method and device embodiment, and details are not described herein again.

The wireless network system provided by the embodiment of the present invention establishes a multi-hop link for the first relay node and the second relay node by using the base station, so that the first relay node can transmit data to the base station through the second relay node. The first relay node is used to transmit data for the user end, thereby achieving the purpose of increasing the backhaul capacity of the wireless network. Through the description of the above embodiments, it will be apparent to those skilled in the art that the present invention can be implemented in hardware, firmware implementation, or a combination thereof. When implemented in software, the functions described above may be stored in or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. By way of example and not limitation, the computer readable medium can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used to carry or store an instruction or data structure. The desired program code and any other medium that can be accessed by the computer. Also. Any connection may suitably be a computer readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media. As used in the present invention, a disc (D isk ) and a disc (CD) include a compact disc (CD), Laser discs, optical discs, digital versatile discs (DVDs), floppy discs, and Blu-ray discs, where discs are usually magnetically replicated, while discs use lasers to optically replicate data. Combinations of the above should also be included within the scope of the computer readable media.

 In summary, the above description is only a preferred embodiment of the technical solution of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim  A method for establishing a wireless network, which is applied to a first relay node, where the first relay node directly establishes a connection with a user equipment, wherein the method includes: the first relay node receiving a base station Sending a first multi-hop link setup request message; the first relay node completes the configuration of the link between itself and the second relay node according to the first multi-hop link setup request message, and is in itself Uplink synchronization is initiated on the link between the second relay nodes to the second relay node, so that backhaul data is sent to the base station by the second relay node. The method according to claim 1, wherein the first multi-hop link setup request message includes: radio resource control protocol RRC configuration information of the first relay node, the second relay a carrier frequency of the node and a physical layer cell identifier PCI of the second relay node; the first relay node completes a link between itself and the second relay node according to the first multi-hop link setup request message The configuration includes: the first relay node identifies the second relay node according to a carrier frequency of the second relay node and a PCI of the second relay node, and according to the first relay The RRC configuration information of the node completes the configuration of the link with the second relay node. The method according to claim 1, wherein, before the first relay node receives the first multi-hop link setup request message sent by the base station, the method further includes: the first relay node reporting the The base station sends the network load information, so that the base station acquires the network load status of the first relay node, where the network load information includes the number of access user equipments of the first relay node and/or physical resource blocks. Occupancy rate. The method according to claim 3, after the first relay node sends the network load information to the base station, the method further includes: the first relay node receiving the measurement control sent by the base station Information: the first relay node according to the measurement control information to the second relay node The signal quality is measured and a measurement report is generated, which is sent to the base station.  The method according to claim 1, wherein the first relay node completes the configuration of the link between itself and the second relay node according to the first multi-hop link setup request message, The method further includes: the first relay node sending a multi-hop link setup complete message to the second relay node.  The method according to claim 1, wherein the first relay node completes the configuration of the link between itself and the second relay node according to the first multi-hop link setup request message. After the method, the method further includes: the first relay node sends a multi-hop link setup complete message to the base station by using the second relay node, where the multi-hop link setup complete message is carried by the radio data bearer DRB . 7. A method for establishing a wireless network, applied to a second relay node, characterized in that:  The second relay node receives a backhaul link request sent by the base station, and the second relay node generates a backhaul link acknowledgement message according to the backhaul link request message, and sends the backhaul link to the base station. Acknowledgement message, so that the base station generates a second multi-hop link setup request message according to the backhaul link acknowledgement message;  Receiving, by the second relay node, the second multi-hop link setup request message sent by the base station;  The second relay node completes the configuration of the link between the first relay node and the base station according to the second multi-hop link setup request message, and is in itself and the first Uplink synchronization is established with the first relay node on the link between the nodes, so as to forward the backhaul data sent by the first relay node to the base station. 8. The method of claim 7 wherein: The backhaul link request message includes at least one relay node request context, and the relay node request context includes: an identity identifier of the first relay node and a wireless to be accessed in the first relay node Accessing a bearer E-RAB list; the backhaul link acknowledgement message includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, the first relay node Confirming the accessed E-RAB list and the RRC configuration information of the first relay node;  The generating, by the second relay node, the backhaul link acknowledgement message according to the backhaul link request message, specifically: the second relay node according to the ID of the first relay node and the first relay node The radio access bearer E-RAB list to be accessed generates an E-RAB list that is determined to be accessed by the first relay node, and is determined according to the determined access The E-RAB list generates RRC configuration information of the first relay node. 9. The method of claim 7 wherein:  The second multi-hop link setup request message includes: RRC configuration information of the second relay node, a maximum backhaul transmission bit rate of the second relay node, and a relay node ID list, where the relay node The ID list includes an ID of the at least one first relay node, where the RRC configuration information of the second relay node includes the second relay node establishing a link with the first relay node and the base station. Required configuration information;  The configuration of the link between the second relay node and the first relay node and the base station by the second relay node according to the second multi-hop link setup request message includes:  The second relay node identifies the first relay node according to the ID of the first relay node, according to a maximum backhaul transmission bit rate of the second relay node, and an RRC of the second relay node. The configuration information completes the configuration of the link between itself and the first relay node and the base station. The method according to claim 7, wherein before the receiving, by the second relay node, the backhaul link request message sent by the base station, the method further includes: Sending, by the second relay node, an identity message to the base station, where the identity message is used Notifying the base station that the second relay node supports backhaul transmission in a multi-hop link. The method according to any one of claims 7 to 10, wherein the second relay node completes itself and the first relay node according to the second multi-hop link setup request message. And after configuring the link with the base station, the method further includes:  The second relay node receives a multi-hop link setup complete message sent by the first relay node;  The second relay node sends the multi-hop link setup complete message to the base station. The method according to any one of claims 7 to 10, wherein the second relay node completes itself and the first relay node according to the second multi-hop link setup request message. After the configuration of the link with the base station, the method further includes:  The second relay node receives a multi-hop link setup complete message sent by the base station. A method for establishing a wireless network, which is applied to a base station, and includes: the base station sending a backhaul link request message to a second relay node; and the base station receiving a backhaul sent by the second relay node a link confirmation message, the base station generates a second multi-hop link setup request message according to the backhaul link acknowledgement message, and sends the second multi-hop link setup request message to the second relay node, so as to The second relay node completes configuration of a link with the first relay node according to the second multi-hop link setup request message; the base station generates a first multi-hop according to the backhaul link acknowledgement message a link setup request message, sending the first multi-hop link setup request message to the first relay node, so that the first relay node completes the request according to the first multi-hop link setup request message The configuration of the link between the second relay nodes. The method according to claim 13, wherein before the sending, by the base station, the backhaul link request message to the second relay node, the method further includes: the base station receiving the identity message sent by the second relay node The identity cancellation is used to notify the base station that the second relay node supports backhaul in a multi-hop link. Lose  The base station acquires network load information of the first relay node, where the network load information includes an amount of access user equipment of the first relay node and/or an occupancy rate of a physical resource block, and is used to indicate a network load status of the first relay node; the base station sending measurement control information to the first relay node according to the network load information;  The base station receives a measurement report sent by the first relay node.  The method according to claim 14, wherein the acquiring, by the base station, network load information of the first relay node comprises: receiving, by the base station, the network load sent by the first relay node information.  The method according to claim 14, wherein the acquiring, by the base station, the network load information of the first relay node comprises: the base station measuring a network load condition of the first relay node, and Generating network load information of the first relay node according to the network load condition.  The method according to claim 14, wherein the sending, by the base station, a backhaul link request message to the second relay node, includes: the base station according to the identity message, the network load information, and the The measurement report generates the backhaul link request message, and sends the backhaul link request message to the second relay node.  The method according to any one of claims 13 to 17, wherein after the base station sends the first multi-hop link setup request message to the first relay node, the method further includes:  The base station receives a multi-hop link setup complete message sent by the second relay node. The method according to any one of claims 13 to 17, wherein after the base station sends the first multi-hop link establishment request message to the first relay node, the method further includes: The base station receives the multi-hop link setup complete message that is sent by the first relay node and is forwarded by the second relay node, where the multi-hop link setup complete message is carried by the DRB;  The base station sends the multi-hop link setup complete message to the second relay node. A first relay node, where the first relay node directly establishes a connection with the user equipment, and the method includes: a receiving unit and a configuration unit, where the receiving unit is configured to receive the first a hop link setup request message, where the configuration unit is configured to complete the configuration of the link between the self and the second relay node according to the first multi-hop link setup request message received by the receiving unit, and Uplink synchronization is initiated to the second relay node on a link with the second relay node to transmit backhaul data to the base station by the second relay node. The relay node according to claim 20, wherein the first multi-hop link setup request message received by the receiving unit comprises: a radio resource control protocol RRC configuration of the first relay node Information, a carrier frequency of the second relay node, and a physical layer cell identifier PCI of the second relay node;  The configuration unit is specifically configured to identify the second relay node according to a carrier frequency of the second relay node and a PCI of the second relay node, and configure an RRC according to the first relay node. The information completes the configuration of the link with the second relay node. The point according to claim 20, wherein the first relay node further includes a sending unit, where the sending unit is configured to send network load information to the base station, so that the base station acquires the a network load condition of the first relay node, where the network load information includes an access user equipment number of the first relay node and/or an occupancy rate of a physical resource block. The relay node according to claim 22, wherein the receiving unit is further configured to receive measurement control information sent by the base station; The first relay node further includes a measurement unit, configured to measure a signal quality of the second relay node according to the measurement control information received by the receiving unit, and generate a measurement report; The sending unit is further configured to send the measurement report generated by the measuring unit to the base station. The relay node according to claim 20, wherein the sending unit is further configured to send a multi-hop link setup completion message to the second relay node. The relay node according to claim 20, wherein the sending unit is further configured to send, by using the second relay node, the multi-hop link establishment completion message to the base station, where The multi-hop link setup complete message is carried by the radio data bearer DRB. A second relay node, comprising: a receiving unit, an analyzing unit, a sending unit, and a configuration unit, wherein the receiving unit is configured to receive a backhaul link setup request message sent by the base station; And generating, by the sending unit, the backhaul link acknowledgment message according to the backhaul link request message, where the sending unit is configured to send the backhaul link acknowledgment message generated by the analyzing unit to the base station So that the base station generates a second multi-hop link setup request message according to the backhaul link acknowledgement message; the receiving unit is further configured to receive the second multi-hop link setup request message sent by the base station; The configuration unit is configured to complete, according to the second multi-hop link setup request message received by the receiving unit, a configuration of a link between the first relay node and the base station, and Establishing uplink synchronization with the first relay node on the link with the first relay node, so as to forward the back sent by the first relay node to the base station Number According to.  The relay node according to claim 26, wherein the backhaul link request message received by the receiving unit includes at least one relay node request context, and the relay node request context includes: An identity ID of the first relay node and a list of radio access bearers E-RAB to be accessed in the first relay node;  The backhaul link acknowledgement message generated by the analyzing unit includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, and an acknowledgement in the first relay node The E-RAB list of the access and the RRC configuration information of the first relay node; the analyzing unit is specifically configured to be used according to the ID of the first relay node and the first relay node to be accessed The radio access bearer E-RAB list generates an E-RAB list that is determined to be accessed by the first relay node, and generates an RRC configuration of the first relay node according to the E-RAB list that is determined to be accessed. information. The relay node according to claim 26, wherein the second multi-hop link setup request message received by the receiving unit includes: RRC configuration information of the second relay node, a maximum backhaul transmission bit rate of the second relay node and a relay node ID list, where the relay node ID list includes an ID of the at least one first relay node, where the RRC configuration information of the second relay node includes Configuration information required by the second relay node to establish a link with the first relay node and the base station;  The configuration unit is specifically configured to identify the first relay node according to an ID of the first relay node, according to a maximum backhaul transmission bit rate of the second relay node, and a second relay node The RRC configuration information completes the configuration of the link between itself and the first relay node and the base station. 29. The relay node of claim 26, wherein The sending unit is further configured to send an identity message to the base station, where the identity message is used to notify the base station that the second relay node supports backhaul transmission in a multi-hop link.  The relay node according to any one of claims 26 to 29, wherein the receiving unit is further configured to receive a multi-hop link establishment completion message sent by the first relay node;  The sending unit is further configured to send the multi-hop link setup completion message received by the receiving unit to the base station. The relay node according to any one of claims 26 to 29, wherein the receiving unit is further configured to receive a multi-hop link establishment completion message sent by the base station.  32. A base station, comprising: a sending unit, a receiving unit, and an analyzing unit,  The sending unit is configured to send a backhaul link request message to the second relay node, where the receiving unit is configured to receive a backhaul link acknowledgement message sent by the second relay node;  The analyzing unit is configured to generate a first multi-hop link setup request message and a second multi-hop link setup request message according to the backhaul link acknowledgement message received by the receiving unit, where the sending unit is further used to Transmitting, by the analyzing unit, the second multi-hop link setup request message to the second relay node, so that the second relay node completes according to the second multi-hop link setup request message a configuration of a link between the first relay nodes; sending the first multi-hop link setup request message generated by the analysis unit to the first relay node, so that the first relay node And configuring the link with the second relay node according to the first multi-hop link setup request message. 33. The base station according to claim 32, wherein The receiving unit is further configured to receive an identity message sent by the second relay node, where the identity message is used to notify the base station that the second relay node supports backhaul transmission in a multi-hop link; The sending unit is further configured to acquire network load information of the first relay node, and send measurement control information to the first relay node according to the network load information, where the network load information includes the The number of access user equipments of the first relay node and/or the occupancy rate of the physical resource blocks are used to indicate the network load status of the first relay node; the receiving unit is further configured to receive the first medium Following the measurement report sent by the node. The base station according to claim 33, wherein the receiving unit is further configured to receive the network load information sent by the first relay node, and the sending unit is further configured to acquire the The network load information received by the receiving unit. The base station according to claim 33, wherein the base station further includes a measurement unit, where the measurement unit is configured to measure a network load condition of the first relay node, and according to the network load condition Generating network load information of the first relay node; the sending unit is further configured to acquire the network load information generated by the measurement unit. The base station according to claim 33, wherein the analyzing unit is further configured to: according to the identity message received by the receiving unit, the measurement report, and the network acquired by the sending unit The load information generates the backhaul link request message. The base station according to any one of claims 32 to 36, wherein the receiving unit is further configured to receive the multi-hop link established by the second relay node. Complete the news.  The base station according to any one of claims 32 to 36, wherein the receiving unit is further configured to receive the multi-hop chain that is sent by the first relay node and forwarded by the second relay node. a path setup completion message, where the multi-hop link setup complete message is sent by the DRB; the sending unit is further configured to send the multi-hop link setup complete message received by the receiving unit to the second Relay node.  39. A first relay node, where the first relay node directly establishes a connection with a user equipment, and the method includes: at least one processor, a memory, a receiver, and a bus, where the bus is used to implement a processor. And a memory, a connection between the receiver and the communication, where the memory is used to store the program code and data executed by the processor, where the receiver is configured to receive a first multi-hop link setup request message sent by the base station; a processor, configured to complete, according to the first multi-hop link setup request message received by the receiver, a configuration of a link between itself and a second relay node, and in itself and the second relay node Uplink synchronization is initiated on the inter-link to the second relay node to transmit backhaul data to the base station through the second relay node. 40. The relay node of claim 39, wherein  The first multi-hop link setup request message received by the receiver includes: radio resource control protocol RRC configuration information of the first relay node, a carrier frequency of the second relay node, and the second The physical layer cell identifier PCI of the relay node;  The processor is specifically configured to identify the second relay node according to a carrier frequency of the second relay node and a PCI of the second relay node, and according to an RRC configuration of the first relay node The information completes the configuration of the link with the second relay node. The relay node according to claim 39, wherein the first relay node further includes a transmitter connected to the bus, and the transmitter is configured to send network load information to the base station. For the base station Obtaining a network load status of the first relay node, where the network load information includes an access user equipment number of the first relay node and/or an occupancy rate of a physical resource block. The relay node according to claim 41, wherein the receiver is further configured to receive measurement control information sent by the base station, and the processor is further configured to receive according to the receiver. The measurement control information is used to measure a signal quality of the second relay node and generate a measurement report. The transmitter is further configured to send the measurement report generated by the processor to the base station. The relay node according to claim 39, wherein the transmitter is further configured to send a multi-hop link setup complete message to the second relay node. The relay node according to claim 39, wherein the transmitter is further configured to send, by using the second relay node, the multi-hop link establishment completion message to the base station, where The multi-hop link setup complete message is carried by the radio data bearer DRB. 45. A second relay node, comprising: at least one processor, a memory, a receiver, a transmitter, and a bus, where the bus is used to implement between a processor, a memory, a receiver, and a transmitter. And a memory for storing a program code and data executed by the processor; wherein the receiver is configured to receive a backhaul link setup request message sent by the base station; and the processor is configured to receive according to the receiver The backhaul link request message generates a backhaul link acknowledgement message, and the transmitter is configured to send the backhaul link acknowledgement message generated by the processor to the base station, so that the base station is according to the backhaul The link acknowledgement message generates a second multi-hop link setup request message, where the receiver is further configured to receive the second multi-hop link setup sent by the base station Request message  The processor is further configured to complete, according to the second multi-hop link setup request message received by the receiver, a configuration of a link between the first relay node and the base station, and Establishing uplink synchronization with the first relay node on the link between itself and the first relay node, so as to forward the backhaul data sent by the first relay node to the base station.  46. The relay node of claim 45, wherein  The backhaul link request message received by the receiver includes at least one relay node request context, and the relay node request context includes: an identity identifier of the first relay node and the first relay node The radio access to be accessed carries the E-RAB list;  The backhaul link acknowledgement message generated by the processor includes at least one relay node acknowledgement context, and the relay node acknowledgement context includes: an ID of the first relay node, and an acknowledgement in the first relay node The accessed E-RAB list and the RRC configuration information of the first relay node;  The processor is specifically configured to generate, according to an ID of the first relay node, a radio access bearer E-RAB list to be accessed in the first relay node, to determine the connection in the first relay node. Entering an E-RAB list, and generating RRC configuration information of the first relay node according to the determined E-RAB list. 47. The relay node of claim 45, wherein  The second multi-hop link setup request message received by the receiver includes: RRC configuration information of the second relay node, a maximum backhaul transmission bit rate of the second relay node, and a list of relay node IDs The relay node ID list includes an ID of the at least one first relay node, where the RRC configuration information of the second relay node includes the second relay node and the first relay node and the Describe the configuration information required by the base station to establish a link; The processor is specifically configured to identify the first part according to an ID of the first relay node a relay node, completing a link between itself and the first relay node and the base station according to a maximum backhaul transmission bit rate of the second relay node and RRC configuration information of the second relay node Configuration. The relay node according to claim 45, wherein the transmitter is further configured to send an identity message to the base station, where the identity message is used to notify the base station of the second relay node. Support for backhaul transmission in multi-hop links. The relay node according to any one of claims 45 to 48, wherein the receiver is further configured to receive a multi-hop link setup complete message sent by the first relay node; And for transmitting the multi-hop link completion message received by the receiver to the base station. The relay node according to any one of claims 45 to 48, wherein the receiver is further configured to receive a multi-hop link establishment completion message sent by the base station. 5 1. A base station, comprising: at least one processor, a memory, a receiver, a transmitter, and a bus, wherein the bus is used to implement connection and communication between a processor, a memory, a receiver, and a transmitter. The memory is configured to store program code and data executed by the processor, where the transmitter is configured to send a backhaul link request message to the second relay node, and the receiver is configured to receive the second relay a backhaul link acknowledgement message sent by the node; The processor is configured to generate a first multi-hop link setup request message and a second multi-hop link setup request message according to the backhaul link acknowledgement message received by the receiver, where the transmitter is further used to Transmitting, by the processor, the second multi-hop link setup request message to the second relay node, so that the second relay node completes according to the second multi-hop link setup request message a configuration of a link between the first relay nodes; Transmitting, by the processor, the first multi-hop link setup request message to the first relay node, so that the first relay node completes according to the first multi-hop link setup request message Configuration of a link between the second relay nodes.  The base station according to claim 51, wherein the receiver is further configured to receive an identity message sent by the second relay node, where the identity message is used to notify the base station of the The second relay node supports the backhaul transmission in the multi-hop link; the transmitter is further configured to acquire network load information of the first relay node, and send the first relay according to the network load information. The node sends the measurement control information, where the network load information includes the number of access user equipments of the first relay node and/or the occupancy rate of the physical resource block, and is used to indicate the network load of the first relay node. The receiver is further configured to receive a measurement report sent by the first relay node. The base station according to claim 52, wherein the receiver is further configured to receive the network load information sent by the first relay node;  The transmitter is further configured to acquire the network load information received by the receiver. The base station according to claim 52, wherein the processor is further configured to measure a network load condition of the first relay node, and generate the first relay according to the network load condition. The network load information of the node; the sender is further configured to acquire the network load information generated by the processor. The base station according to claim 52, wherein the processor is further configured to: according to the identity message received by the receiver, the measurement report, and the network acquired by the sender The load information generates the backhaul link request message. 56. The base station according to any one of claims 51 to 55, characterized in that The receiver is further configured to receive a multi-hop link setup complete message sent by the second relay node.  57. The base station according to any one of claims 51 to 55, characterized in that  The receiver is further configured to receive, by the first relay node, the multi-hop link setup complete message that is forwarded by the second relay node, where the multi-hop link setup complete message is passed The transmitter is further configured to send the multi-hop link setup complete message received by the receiver to the second relay node.  A wireless network system, comprising: at least one first relay node, at least one second relay node, and at least one base station; wherein the first relay node is any one of claims 20 to 25 The first relay node, the second relay node is the second relay node according to any one of claims 26 to 31, and the base station is any one of claims 32 to 38. Base station  Or the first relay node is the first relay node according to any one of claims 39 to 44, and the second relay node is the second relay according to any one of claims 45 to 50. The base station is the base station according to any one of claims 51 to 57.