WO2019090722A1

WO2019090722A1 - Backhaul link establishment method and apparatus, and base station

Info

Publication number: WO2019090722A1
Application number: PCT/CN2017/110536
Authority: WO
Inventors: 洪伟
Original assignee: 北京小米移动软件有限公司
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2019-05-16
Also published as: CN108391470A

Abstract

The present disclosure relates to a backhaul link establishment method and apparatus, a user device and a base station. The backhaul link establishment method comprises: searching for a wired backhaul base station; when a wired backhaul base station is found, establishing a first wireless connection to the wired backhaul base station; and carrying out a wireless backhaul to a core network on the basis of the first wireless connection. The technical solution in the present disclosure allows small wireless backhaul base stations to serve a user device and allows small wireless backhaul base stations to integrate forwarding and backhaul operations.

Description

Method, device and base station for establishing backhaul link

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, and a base station for establishing a backhaul link.

Background technique

In the research discussion of the fifth-generation mobile communication technology (5th Generation, 5G for short) project, in order to meet the requirements of more diversified services, higher speeds, and larger number of connections, 5G networks need to greatly improve spectrum efficiency, due to high For the transmission characteristics of the frequency band, the base station transmitting in the high frequency band is generally a small cell. If a traditional wired backhaul link, such as a fiber link, is configured for each small base station, the cost is high, and the backhaul link is deployed. In order to reduce the complexity of the deployment of the backhaul link, in the research discussion of the 5G project, a scheme of integrated backhaul and backhaul, namely, wireless backhaul small base station and user equipment (User Equipment, UE for short) is proposed. The data transmission between the data transmission and the wireless backhaul small base station and the wired backhaul base station are transmitted through the wireless link using the same wireless communication system protocol.

The wireless backhaul small base station can implement wireless backhaul through the wired backhaul base station, so a new wireless backhaul implementation scheme is needed for the 5G system to ensure that the wireless backhaul small base station establishes an optimal connection to the wired backhaul base station. And then connect to the backhaul link of the core network.

Summary of the invention

In order to overcome the problems in the related art, the embodiments of the present disclosure provide a method, an apparatus, and a base station for establishing a backhaul link, which are used to solve the problem that the wireless backhaul small base station establishes an optimal connection back to the wired backhaul base station. Link to achieve wireless backhaul through a wired backhaul base station.

According to a first aspect of the embodiments of the present disclosure, a method for establishing a backhaul link is provided, which is applied to a base station, where the method includes:

Determining return link information, where the backhaul link information includes a hop count connected to the wired backhaul base station;

The backhaul link information is broadcast by system signaling.

In an embodiment, the broadcasting the backhaul link information by using system signaling includes:

Broadcast back link information through minimum system information broadcast; or,

The backhaul link information is broadcast by broadcasting other system information based on the request.

In an embodiment, the backhaul link information further includes remaining available bandwidth of the backhaul link of the base station and/or Or the type of service for the supported business.

According to a second aspect of the embodiments of the present disclosure, a method for establishing a backhaul link is provided, which is applied to a wireless backhaul small base station that needs to establish a backhaul link, where the method includes:

Monitoring system signaling of each base station, where the system signaling carries backhaul link information of the base station, where the backhaul link information includes a hop count connected to the wired backhaul base station;

The target base station to which the backhaul link is to be established is determined based on the backhaul link information of each base station.

In an embodiment, the determining, based on the backhaul link information of each base station, the target base station to which the backhaul link is to be established, including:

The base station that has the least number of hops connected to the wired backhaul base station is used as the target base station to which the backhaul link is to be established.

In an embodiment, the backhaul link information further includes remaining available bandwidth of the backhaul link of the base station and/or a service type of the supported service.

Obtaining, according to the data information of the service data to be transmitted, a first weight coefficient corresponding to the hop count connected to the wired backhaul base station, and a second weight coefficient corresponding to the remaining available bandwidth of the backhaul link, supported by At least one of the third weighting factors corresponding to the service type of the service;

Determining a backhaul link of each base station based on at least one of return link information of each base station, the first weight coefficient, and the second weight coefficient and the second weight coefficient metric;

A base station having the largest backhaul link metric value is determined as the target base station.

According to a third aspect of the embodiments of the present disclosure, there is provided a device for establishing a backhaul link, which is applied to a base station, the device comprising:

a first determining module, configured to determine backhaul link information, where the backhaul link information includes a hop count connected to the wired backhaul base station;

And a broadcast module configured to broadcast the backhaul link information determined by the first determining module by using system signaling.

In an embodiment, the broadcast module includes:

a first broadcast submodule configured to broadcast back link information by using minimum system information; or

The second broadcast submodule is configured to broadcast backhaul link information by other system information based on the request.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a device for establishing a backhaul link, which is applied to a wireless backhaul small base station that needs to establish a backhaul link, and the device includes:

The monitoring module is configured to monitor system signaling of each base station, where the system signaling carries back link information of the base station, where the backhaul link information includes a hop count connected to the wired backhaul base station;

The second determining module is configured to determine, according to the backhaul link information of each of the base stations carried by the system signaling that is monitored by the monitoring module, the target base station to which the backhaul link is to be established.

In an embodiment, the second determining module comprises:

The first determining submodule is configured to use the base station that has the least number of hops connected to the wired backhaul base station as the target base station to which the backhaul link is to be established.

In an embodiment, the second determining module comprises:

Obtaining a sub-module, configured to acquire, according to the data information of the service data to be transmitted, a first weight coefficient corresponding to the hop count connected to the wired backhaul base station, and a remaining available bandwidth corresponding to the backhaul link At least one of a second weighting factor and a third weighting factor corresponding to a service type of the supported service;

a second determining submodule configured to be based on at least one of return link information, the first weight coefficient, and the second weight coefficient and the second weight coefficient of each base station, Determining the backhaul link metric value of each base station;

And a third determining submodule configured to determine a base station having the largest backhaul link metric value as the target base station.

According to a fifth aspect of the embodiments of the present disclosure, a base station is provided, including:

processor;

a memory for storing processor executable instructions;

Wherein the processor is configured to:

The backhaul link information is broadcast by system signaling.

According to a sixth aspect of the embodiments of the present disclosure, a base station is provided, including:

processor;

a memory for storing processor executable instructions;

Wherein the processor is configured to:

According to a seventh aspect of the embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon computer instructions that, when executed by a processor, implement the following steps:

The backhaul link information is broadcast by system signaling.

According to an eighth aspect of the embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon computer instructions that, when executed by a processor, implement the following steps:

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

Each base station can broadcast its own backhaul link information through system signaling, such as the number of hops broadcasted to the wired backhaul base station, so that the wireless backhaul small base station that needs to establish a backhaul link can be based on each base station. The link information is returned, and the target base station to which the backhaul link is to be established is determined. Therefore, the technical solution of the present disclosure can implement the wireless backhaul small base station to select the most suitable base station to establish a wireless connection based on the system signaling broadcasted by each base station, thereby implementing the establishment of an optimal backhaul link.

The above general description and the following detailed description are intended to be illustrative and not restrictive.

DRAWINGS

The accompanying drawings, which are incorporated in the specification of FIG

FIG. 1A is a flowchart of a method for establishing a backhaul link according to an exemplary embodiment.

FIG. 1B is a first application scenario diagram of a method for establishing a backhaul link according to an exemplary embodiment.

FIG. 1C is a second application scenario diagram of a method for establishing a backhaul link according to an exemplary embodiment.

FIG. 2 is a flowchart of a method for establishing a backhaul link according to an exemplary embodiment.

FIG. 3 is a flowchart of still another method for establishing a backhaul link according to an exemplary embodiment.

FIG. 4 is a block diagram of an apparatus for establishing a backhaul link, according to an exemplary embodiment.

FIG. 5 is a block diagram of another apparatus for establishing a backhaul link, according to an exemplary embodiment.

FIG. 6 is a block diagram of a device for establishing a backhaul link, according to an exemplary embodiment.

FIG. 7 is a block diagram of another apparatus for establishing a backhaul link, according to an exemplary embodiment.

FIG. 8 is a block diagram of a setup apparatus suitable for a backhaul link, according to an exemplary embodiment.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with aspects of the invention as detailed in the appended claims.

In the technical solution provided by the present disclosure, there may be two types of base stations in the coverage of the core network. Referring to FIG. 1B, there is a wired backhaul base station in the coverage of the core network in FIG. 1B, as indicated by the mark 11, the mark 12, and the mark 13. a base station, a wired backhaul link is deployed between the wired backhaul base station and the core network; and a wireless backhaul small base station is also included in the core network coverage, such as the base station indicated by the mark 11, the mark 12, and the mark 13 The base stations are all wireless backhaul small base stations, and no wired backhaul links are deployed between the wireless backhaul small base stations and the core network, and wired backhaul cannot be implemented. A backhaul link with the wired backhaul base station needs to be established to implement Wireless backhaul, when the wireless backhaul small base station cannot directly establish a backhaul link with the wired backhaul base station, it can establish a backhaul with other wireless backhaul small base stations that have a backhaul link with the wired backhaul base station. link.

1A is a flowchart of a method for establishing a backhaul link according to an exemplary embodiment, and FIG. 1C is a second application scenario of a method for establishing a backhaul link according to an exemplary embodiment; The method for establishing the backhaul link can be applied to any one of the base stations. As shown in FIG. 1A, the method for establishing the backhaul link includes the following steps 101-102:

In step 101, the backhaul link information is determined, and the backhaul link information includes the number of hops connected to the wired backhaul base station.

In an embodiment, the hop count of a base station connected to the wired backhaul base station refers to the itinerary (hop count) between the base station and the wired backhaul base station in the backhaul link established by the base station, for example, wireless backhaul. A wireless connection is established between the small base station 1 and the wired backhaul base station, and the wireless backhaul small base station 2 establishes a wireless connection with the wireless backhaul base station 1, and the hop count of the wireless backhaul small base station 1 connected to the wired backhaul base station is 1. The hop count of the wireless backhaul small base station 2 connected to the wired backhaul base station is 2, and the hop count of the wired backhaul base station corresponding to the wired backhaul base station may be represented by 0.

In an embodiment, the backhaul link information may also include the remaining available bandwidth of the backhaul link, and/or the type of service of the base station. The wireless backhaul small base station that needs to establish the backhaul link can comprehensively consider the hop count connected to the wired backhaul base station, the remaining available bandwidth of the backhaul link, and/or the service type of the base station to determine the most suitable establishment back. For the target base station of the transmission link, refer to the description of the embodiment shown in FIG. 3, which is not described in detail herein.

In an embodiment, the remaining available bandwidth of the backhaul link may be obtained based on the total bandwidth of the backhaul link and the used bandwidth. For example, the total bandwidth of the backhaul link is 1 GB/s, and the used backhaul bandwidth is 0.45. For GB/s, the remaining available bandwidth is 0.55 GB/s.

In an embodiment, the service type of the base station may be defined by the quality of service of the service provided by the base station, that is, the wireless backhaul of the small base station by using the transmission bandwidth (throughput rate), the transmission delay, the data packet loss rate, and the like. The service type is divided. For example, the wireless backhaul small base station 1 can provide a service with a Quality of Service (QoS) requirement, such as supporting transmission of data streams such as voice, audio, video, and the like, and the wireless backhaul small base station 2 Can provide services with high QoS requirements, such as online game services. In an embodiment, the service type of the wireless backhaul small base station may also be defined by the service type of the specific service supported by the base station, for example, the base station supports the Internet access service, or supports the video browsing service, or supports the file download service, and the like. .

In step 102, the backhaul link information is broadcast by system signaling.

In an embodiment, the base station type of the base station may be broadcasted by minimum system signaling, such as by system signaling; in an embodiment, the base station may also broadcast its own base station type by request-based system signaling, such as by using a system. The System Information Block (SIB) type system signaling broadcasts its own base station type.

In an exemplary scenario, as shown in FIG. 1C, the wireless backhaul small base station 10, the wireless backhaul small base station 20, the wired backhaul base station 30, and the core network device 40 are included, wherein the wired backhaul base station 30 can be connected to the core network. The device 40 establishes a wired backhaul link, and each base station can broadcast its own backhaul link information through system signaling. It is assumed that the wireless backhaul small base station 10 needs to establish a backhaul link, and can monitor system signaling broadcast by the surrounding base station. And based on the system signaling broadcast by each base station, selecting the most suitable base station to establish a wireless connection, thereby realizing the establishment of an optimal backhaul link.

In this embodiment, each base station can broadcast its own backhaul link information through system signaling, such as the number of hops broadcasted to the wired backhaul base station, thereby implementing a wireless backhaul small base station that needs to establish a backhaul link. The target base station to which the backhaul link is to be established is determined based on the backhaul link information of each base station. Therefore, the technical solution of the present disclosure can implement the wireless backhaul small base station to select the most suitable base station to establish a wireless connection based on the system signaling broadcasted by each base station, thereby implementing the establishment of an optimal backhaul link.

FIG. 2 is a flowchart of a method for establishing a backhaul link according to an exemplary embodiment; the method for establishing the backhaul link may be applied to a wireless backhaul small base station, as shown in FIG. The method for establishing a transmission link includes the following steps 201-202:

In step 201, the system signaling of each base station is monitored, and the system signaling carries the backhaul link information of the base station, and the backhaul link information includes the hop count connected to the wired backhaul base station.

In an embodiment, the hop count of a base station connected to the wired backhaul base station refers to the itinerary (hop count) between the base station and the wired backhaul base station in the backhaul link established by the base station, for example, wireless backhaul. A wireless connection is established between the small base station 1 and the wired backhaul base station, and the wireless backhaul small base station 2 establishes a wireless connection with the wireless backhaul base station 1, and the hop count of the wireless backhaul small base station 1 connected to the wired backhaul base station is 1. The hop count of the wireless backhaul small base station 2 connected to the wired backhaul base station is 2, and the hop count corresponding to the wired backhaul base station itself can be represented by 0.

In an embodiment, the backhaul link information may also include the remaining available bandwidth of the backhaul link of the base station and/or the type of service of the supported service.

In step 202, based on the backhaul link information of each base station, the target base station to which the backhaul link is to be established is determined.

In an embodiment, when the backhaul link information only includes the hop count connected to the wired backhaul base station, the wireless backhaul small base station can use the base station with the lowest number of hops connected to the wired backhaul base station as the backhaul chain to be established. The target base station of the road, for example, the wireless backhaul small base station that needs to establish a backhaul link listens to the system signaling broadcast by the base station 1, the base station 2, and the base station 3, and the base station 1, the base station 2, and the base station 3 are connected to the wired backhaul base station. The hop counts are 1, 2, and 3, respectively, and the base station 1 can be selected as the target base station to which the backhaul link is to be established.

In an embodiment, when the backhaul link information further includes the remaining available bandwidth of the backhaul link of the base station and/or the service type of the supported service, the backhaul link to be established may be determined by using the embodiment shown in FIG. Target base station.

In an exemplary scenario, as shown in FIG. 1C, the wireless backhaul small base station 10 (the base station that needs to establish a backhaul link) and the wireless backhaul small base station 20 (have established a backhaul link, and the wireless backhaul is small). The base station 20 may have a plurality of, a wired backhaul base station 30, and a core network device 40, wherein the wireless backhaul small base station 10 that needs to establish a backhaul link can listen to system signaling broadcast by the neighboring base station, and is in the monitored base station. After the system signaling of the broadcast, the backhaul link information of each base station is obtained, and the most suitable base station is selected to establish a wireless link, thereby realizing the establishment of an optimal backhaul link.

In this embodiment, through the foregoing steps 201-202, the wireless backhaul small base station that needs to establish the backhaul link can determine the target base station of the backhaul link to be established based on the backhaul link information of each base station, thereby establishing the most Excellent return link.

For details on how to establish a backhaul link, refer to the following examples.

The technical solutions provided by the embodiments of the present disclosure are described below by using specific embodiments.

FIG. 3 is a flowchart of still another method for establishing a backhaul link according to an exemplary embodiment. This embodiment uses the foregoing method provided by the embodiment of the present disclosure to determine a target base station by using a wireless backhaul small base station as an example. An exemplary description, as shown in FIG. 3, includes the following steps:

In step 301, the system signaling of each base station is monitored, and the system signaling carries the backhaul link of the base station. information.

In an embodiment, the backhaul link information may include, in addition to the number of hops connected to the wired backhaul base station, the remaining available bandwidth of the backhaul link and the type of service of the supported service.

In an embodiment, in an embodiment, the backhaul link information may also include the remaining available bandwidth of the backhaul link, and/or the type of service of the base station.

In an embodiment, the remaining available bandwidth of the backhaul link may be derived based on the total bandwidth of the backhaul link and the used bandwidth. In an embodiment, the service type of the base station may be defined by the quality of service of the service provided by the base station, that is, the wireless backhaul of the small base station by using the transmission bandwidth (throughput rate), the transmission delay, the data packet loss rate, and the like. The service type is divided. For example, the wireless backhaul small base station 1 can provide a service with quality of service requirements, such as supporting transmission of data streams such as voice, audio, video, etc., and the wireless backhaul small base station 2 can provide services with high QoS requirements, such as Online game services, etc. In an embodiment, the service type of the wireless backhaul small base station may also be defined by the service type of the specific service supported by the base station, for example, the base station supports the Internet access service, or supports the video browsing service, or supports the file download service, and the like. .

In step 302, based on the data information of the service data to be transmitted, the first weight coefficient corresponding to the hop count connected to the wired backhaul base station, and the second weight coefficient corresponding to the remaining available bandwidth of the backhaul link, and the supported service are obtained. The service type corresponds to at least one of the third weighting factors.

In an embodiment, the data information of the service data to be transmitted may include, but is not limited to, the following information: a data type of the service data to be transmitted, a quality of service of the service data to be transmitted, a data buffer amount of the service data to be transmitted, and the like.

In an embodiment, since the number of hops connected to the wired backhaul base station has the greatest impact on the quality of the backhaul link, the first weight coefficient corresponding to the hop count connected to the wired backhaul base station is greater than the second weight coefficient and the third The weight coefficient is larger, but the weight coefficient corresponding to each information in the back link information is variable, and the data information based on the service data to be transmitted changes. For example, if the service data to be transmitted is service data that requires strict delay, the first weight coefficient corresponding to the hop count connected to the wired backhaul base station may be set larger; if the data buffer volume of the service data to be transmitted is If the size of the remaining available bandwidth of the backhaul link is relatively large, if the data type of the service data to be transmitted is relatively simple, such as only the video data type, the service type of the service can be supported. The weighting factor is set larger.

In an embodiment, the specific value of the weight coefficient set for each item of information in the backhaul link information based on the data information of the service data to be transmitted may be calculated by the base station or the communication system based on an algorithm.

In an embodiment, if the backhaul link information only includes the hop count connected to the wired backhaul base station and the remaining available bandwidth of the backhaul link, the corresponding first weight coefficient and the second weight coefficient may be obtained; Link information only Including the hop count connected to the wired backhaul base station and the service type of the base station, the corresponding first weight coefficient and the third weight coefficient may be obtained correspondingly; if the backhaul link information includes the hop count and the backhaul connected to the wired backhaul base station The remaining available bandwidth of the link and the service type of the base station may be corresponding to the first weight coefficient, the second weight coefficient, and the third weight coefficient.

In step 303, a backhaul link metric of each base station is determined based on at least one of a backhaul link information, a first weighting coefficient, and a second weighting coefficient and a second weighting coefficient of each base station. value.

In an embodiment, the backhaul link metric may be used to indicate that the wireless backhaul small base station that needs to establish the backhaul link establishes a wireless connection with the base station to implement the backhaul link quality, where the link information is only transmitted back. The hop count connected to the wired backhaul base station and the remaining available bandwidth of the backhaul link are taken as an example to describe how to determine the backhaul link metric value of each base station, for example, the service quality requirement of the service data to be transmitted is relatively low, and the data amount is If the ratio is large, the first weight coefficient corresponding to the hop count connected to the wired backhaul base station is set to 0.7, the second weight coefficient corresponding to the remaining available bandwidth of the backhaul link is 0.3, and the base station 1 is connected to the wired backhaul base station. The metric score of the backhaul link corresponding to the hop count of 2, 2 hops is 60, the remaining available bandwidth of the backhaul link is 0.1 GB/s, and the return link metric score corresponding to the available bandwidth of 0.1 GB/s is 5, the hop count of the base station 2 connected to the wired backhaul base station is 3, the hop score corresponding to the backhaul link is 30, the remaining available bandwidth of the backhaul link is 3 GB/s, and the available bandwidth of 3 GB/s corresponds to The return link metric score is 100, then the back of the base station 1 The link metric is 0.7×60+0.3×5=43.5, and the backhaul link metric of base station 2 is 0.7×30+0.3×100=51, since the backhaul link metric of base station 2 is larger than that of base station 1. The link metric is returned, thus indicating that the base station 2 is more suitable for wireless backhauling small base station access to establish a backhaul link.

In an embodiment, different backhaul link metric scores corresponding to the hop count of the wired backhaul base station, backhaul link metric scores corresponding to the remaining available bandwidth of different backhaul links, different services The backhaul link metric score corresponding to the type can be preset by the system.

In an embodiment, the foregoing merely describes an implementation manner of determining a backhaul link metric value of a base station based on each piece of information in the wireless link information and data information of the service data to be transmitted, but is not used to define the determination. The implementation of the backhaul link metric of the base station.

In step 304, the base station having the largest backhaul link metric value is determined as the target base station.

In this embodiment, the wireless backhaul small base station may determine the backhaul link metric value of the base station based on each item of information in the wireless link information and the data information of the service data to be transmitted, thereby determining the target base station, because comprehensive consideration is made. The target base station is determined by each of the data information of the service data to be transmitted and the information of the wireless link information, so that the base station that is most suitable for establishing the wireless connection can be obtained, the optimal backhaul link is established, and the wireless backhaul is ensured. effectiveness.

FIG. 4 is a block diagram of a device for establishing a backhaul link, which is applied to a base according to an exemplary embodiment. On the station, as shown in FIG. 4, the device for establishing the backhaul link includes:

The first determining module 41 is configured to determine backhaul link information, where the backhaul link information includes a hop count connected to the wired backhaul base station;

The broadcast module 42 is configured to broadcast the backhaul link information determined by the first determining module by using system signaling.

In this embodiment, each base station can broadcast its own backhaul link information through system signaling, such as the number of hops broadcasted to the wired backhaul base station, thereby implementing a wireless backhaul small base station that needs to establish a backhaul link. The target base station to which the backhaul link is to be established is determined based on the backhaul link information of each base station.

FIG. 5 is a block diagram of another apparatus for establishing a backhaul link according to an exemplary embodiment. As shown in FIG. 5, on the basis of the foregoing embodiment shown in FIG. 4, in an embodiment, a broadcast module is shown. 42 includes:

The first broadcast submodule 421 is configured to broadcast back link information by using minimum system information; or

The second broadcast sub-module 422 is configured to broadcast backhaul link information by other system information based on the request.

In this embodiment, the manner of broadcasting the backhaul link information is disclosed, and it is not limited to which type of system signaling is used to broadcast the backhaul link information, which is relatively flexible.

In an embodiment, the backhaul link information further includes the remaining available bandwidth of the backhaul link of the base station and/or the type of service of the supported service.

In this embodiment, by setting the backhaul link information, the remaining available bandwidth of the backhaul link of the base station and/or the service type of the supported service may also be included, which is helpful for the wireless backhaul that needs to establish the backhaul link. The base station can determine which base station is the most suitable target base station based on multiple aspects, and helps it establish a backhaul link with the highest backhaul efficiency.

FIG. 6 is a block diagram of a device for establishing a backhaul link according to an exemplary embodiment, applied to a wireless backhaul small base station that needs to establish a backhaul link, as shown in FIG. Establishing devices includes:

The monitoring module 61 is configured to monitor system signaling of each base station, where the system signaling carries back link information of the base station, and the backhaul link information includes a hop count connected to the wired backhaul base station;

The second determining module 62 is configured to determine, according to the backhaul link information of each base station carried by the system signaling monitored by the intercepting module, the target base station to which the backhaul link is to be established.

In this embodiment, the wireless backhaul small base station that needs to establish a backhaul link can determine the target base station to which the backhaul link is to be established based on the backhaul link information of each base station, thereby establishing an optimal backhaul link.

FIG. 7 is a block diagram of another apparatus for establishing a backhaul link according to an exemplary embodiment. On the basis of the foregoing embodiment shown in FIG. 6, as shown in FIG. 7, in an embodiment, a second The determining module 62 includes:

The first determining submodule 621 is configured to use the base station that has the few hops connected to the wired backhaul base station as the base station The target base station on which the backhaul link is to be established.

In this embodiment, by determining the base station connected to the hop count of the wired backhaul base station as the target base station, it is possible to ensure that the transmission error rate of the base station is the lowest.

In an embodiment, the second determining module 62 includes:

The obtaining sub-module 622 is configured to acquire, according to the data information of the service data to be transmitted, a first weight coefficient corresponding to the hop count connected to the wired backhaul base station, and a second weight coefficient corresponding to the remaining available bandwidth of the backhaul link, At least one of the third weighting factors corresponding to the service type of the supported service;

The second determining sub-module 623 is configured to determine, according to at least one of the backhaul link information, the first weight coefficient, and the second weight coefficient and the second weight coefficient of each base station, each base station Return link metrics;

The third determining sub-module 624 is configured to determine the base station having the largest backhaul link metric value as the target base station.

In this embodiment, it is disclosed how to determine which base station is the most suitable target base station when combining two or more pieces of information in the backhaul link information, which helps to establish a backhaul link with the highest backhaul efficiency.

FIG. 8 is a block diagram suitable for a data transmitting apparatus, according to an exemplary embodiment. Apparatus 800 can be provided as a base station. Referring to Figure 8, apparatus 800 includes a processing component 822, a wireless transmit/receive component 824, an antenna component 826, and a signal processing portion specific to the wireless interface. Processing component 822 can further include one or more processors.

When the base station is any type of base station, one of the processing components 822 can be configured to perform the method of establishing the backhaul link described in the first and second aspects above.

When the base station is a wireless backhaul small base station that needs to establish a backhaul link, one of the processing components 822 can be configured to perform the method of establishing the backhaul link described in the second aspect above.

In an exemplary embodiment, there is also provided a non-transitory computer readable storage medium comprising instructions executable by processing component 822 of apparatus 800 to perform the method described above in the first aspect or the second aspect. For example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.

Other embodiments of the present disclosure will be readily apparent to those skilled in the <RTIgt; The present application is intended to cover any variations, uses, or adaptations of the present disclosure, which are in accordance with the general principles of the disclosure and include common general knowledge or common technical means in the art that are not disclosed in the present disclosure. . The specification and examples are to be regarded as illustrative only,

It is to be understood that the invention is not limited to the details of the details and The scope of the disclosure is to be limited only by the appended claims.

Claims

A method for establishing a backhaul link is characterized in that it is applied to a base station, and the method includes:

Determining return link information, where the backhaul link information includes a hop count connected to the wired backhaul base station;

The backhaul link information is broadcast by system signaling.
The method according to claim 1, wherein the broadcasting the backhaul link information by using system signaling comprises:

Broadcast back link information through minimum system information broadcast; or,

The backhaul link information is broadcast by broadcasting other system information based on the request.
The method according to claim 1, wherein the backhaul link information further comprises remaining available bandwidth of the backhaul link of the base station and/or a service type of the supported service.
A method for establishing a backhaul link is characterized in that it is applied to a wireless backhaul small base station that needs to establish a backhaul link, and the method includes:

Monitoring system signaling of each base station, where the system signaling carries backhaul link information of the base station, where the backhaul link information includes a hop count connected to the wired backhaul base station;

The target base station to which the backhaul link is to be established is determined based on the backhaul link information of each base station.
The method according to claim 4, wherein the determining, based on the backhaul link information of each base station, the target base station to which the backhaul link is to be established, includes:

The base station that has the least number of hops connected to the wired backhaul base station is used as the target base station to which the backhaul link is to be established.
The method according to claim 4, wherein the backhaul link information further comprises remaining available bandwidth of the backhaul link of the base station and/or a service type of the supported service.
The method according to claim 6, wherein the determining, based on the backhaul link information of each base station, the target base station to which the backhaul link is to be established, includes:

Obtaining, according to the data information of the service data to be transmitted, a first weight coefficient corresponding to the hop count connected to the wired backhaul base station, and a second weight coefficient corresponding to the remaining available bandwidth of the backhaul link, supported by At least one of the third weighting factors corresponding to the service type of the service;

Determining a backhaul link of each base station based on at least one of return link information of each base station, the first weight coefficient, and the second weight coefficient and the second weight coefficient metric;

A base station having the largest backhaul link metric value is determined as the target base station.
A device for establishing a backhaul link is characterized in that it is applied to a base station, and the device includes:

a first determining module, configured to determine backhaul link information, where the backhaul link information includes a hop count connected to the wired backhaul base station;

And a broadcast module configured to broadcast the backhaul link information determined by the first determining module by using system signaling.
The apparatus according to claim 8, wherein the broadcast module comprises:

a first broadcast submodule configured to broadcast back link information by using minimum system information; or

The second broadcast submodule is configured to broadcast backhaul link information by other system information based on the request.
The apparatus according to claim 8, wherein the backhaul link information further comprises remaining available bandwidth of the backhaul link of the base station and/or a service type of the supported service.
A device for establishing a backhaul link, which is applied to a wireless backhaul small base station that needs to establish a backhaul link, and the device includes:

The monitoring module is configured to monitor system signaling of each base station, where the system signaling carries back link information of the base station, where the backhaul link information includes a hop count connected to the wired backhaul base station;

The second determining module is configured to determine, according to the backhaul link information of each of the base stations carried by the system signaling that is monitored by the monitoring module, the target base station to which the backhaul link is to be established.
The apparatus according to claim 11, wherein the second determining module comprises:

The first determining submodule is configured to use the base station that has the least number of hops connected to the wired backhaul base station as the target base station to which the backhaul link is to be established.
The apparatus according to claim 11, wherein said backhaul link information further comprises remaining available bandwidth of said backhaul link of said base station and/or type of service of said supported service.
The apparatus according to claim 13, wherein the second determining module comprises:

Obtaining a sub-module, configured to acquire, according to the data information of the service data to be transmitted, a first weight coefficient corresponding to the hop count connected to the wired backhaul base station, and a remaining available bandwidth corresponding to the backhaul link At least one of a second weighting factor and a third weighting factor corresponding to a service type of the supported service;

a second determining submodule configured to be based on at least one of return link information, the first weight coefficient, and the second weight coefficient and the second weight coefficient of each base station, Determining the backhaul link metric value of each base station;

And a third determining submodule configured to determine a base station having the largest backhaul link metric value as the target base station.
A base station, comprising:

processor;

a memory for storing processor executable instructions;

Wherein the processor is configured to:

Determining return link information, where the backhaul link information includes a hop count connected to the wired backhaul base station;

The backhaul link information is broadcast by system signaling.
A base station, comprising:

processor;

a memory for storing processor executable instructions;

Wherein the processor is configured to:

Monitoring system signaling of each base station, where the system signaling carries backhaul link information of the base station, where the backhaul link information includes a hop count connected to the wired backhaul base station;

The target base station to which the backhaul link is to be established is determined based on the backhaul link information of each base station.
A non-transitory computer readable storage medium having computer instructions stored thereon, wherein the instructions are executed by a processor to implement the following steps:

Determining return link information, where the backhaul link information includes a hop count connected to the wired backhaul base station;

The backhaul link information is broadcast by system signaling.
A non-transitory computer readable storage medium having computer instructions stored thereon, wherein the instructions are executed by a processor to implement the following steps:

Monitoring system signaling of each base station, where the system signaling carries backhaul link information of the base station, where the backhaul link information includes a hop count connected to the wired backhaul base station;

The target base station to which the backhaul link is to be established is determined based on the backhaul link information of each base station.