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WO2019056186A1 - Procédé et appareil de mise en œuvre de liaison de raccordement sans fil, et station de base - Google Patents

Procédé et appareil de mise en œuvre de liaison de raccordement sans fil, et station de base Download PDF

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Publication number
WO2019056186A1
WO2019056186A1 PCT/CN2017/102319 CN2017102319W WO2019056186A1 WO 2019056186 A1 WO2019056186 A1 WO 2019056186A1 CN 2017102319 W CN2017102319 W CN 2017102319W WO 2019056186 A1 WO2019056186 A1 WO 2019056186A1
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WO
WIPO (PCT)
Prior art keywords
base station
backhaul
wireless
backhaul capability
capability
Prior art date
Application number
PCT/CN2017/102319
Other languages
English (en)
Chinese (zh)
Inventor
洪伟
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2017/102319 priority Critical patent/WO2019056186A1/fr
Priority to CN201780001442.XA priority patent/CN108370598B/zh
Publication of WO2019056186A1 publication Critical patent/WO2019056186A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, and a base station for implementing wireless backhaul.
  • 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. complex.
  • a scheme of integrated backhaul and backhaul that is, data transmission between the base station and the user equipment (User Equipment, UE for short) and the base station are proposed.
  • the data transmission between the core network and the core network is transmitted over the wireless link using the same wireless communication system protocol.
  • a new wireless backhaul implementation scheme is required for the 5G system to ensure that only The base station of the wireless backhaul capability can also serve the user equipment.
  • the embodiments of the present disclosure provide a method, an apparatus, a user equipment, and a base station for implementing wireless backhaul, which are used to solve the problem that a base station having only wireless backhaul capability can establish a connection with other base stations.
  • Wireless backhaul Wireless backhaul.
  • a method for implementing a wireless backhaul is applied to a base station having only wireless backhaul capability, including:
  • Wireless backhaul with the core network is implemented based on the first wireless connection.
  • searching for a base station having wired backhaul capability includes:
  • the backhaul capability is a wired backhaul capability, it is determined to search for a base station with wired backhaul capability.
  • the method further includes:
  • the method further includes:
  • a method for implementing wireless backhaul is applied to a base station, including:
  • Determining a base station type where the base station type is used to indicate a backhaul capability of the first base station, based on a backhaul capability supported by the base station;
  • the base station type is broadcast by system information.
  • the broadcasting the base station type by using system information includes:
  • the base station type is broadcast by other system information based on the request.
  • an apparatus for implementing wireless backhaul which is applied to a base station having only wireless backhaul capability, and the apparatus includes:
  • a first search module configured to search for a base station having wired backhaul capability
  • a first connection establishing module configured to establish a first wireless connection with the base station with wired backhaul capability when the first search module searches for a base station with wired backhaul capability
  • the backhaul implementation module is configured to implement wireless backhaul with the core network based on the first wireless connection established by the first connection establishment module.
  • the first search module includes:
  • a monitoring submodule configured to listen to system information carrying a base station type
  • a first determining submodule configured to determine, according to the type of the base station, a backhaul capability that the base station has when listening to the system information carrying the type of the base station;
  • a second determining submodule configured to determine the search if the backhaul capability is a wired backhaul capability Base station with wired backhaul capability.
  • the apparatus further includes:
  • the second search module is configured to search for a base station with wireless backhaul capability when no base station with line backhaul capability is found;
  • the state switching module is configured to switch to a sleep state when no base station with wireless backhaul capability is found.
  • the apparatus further includes:
  • a second connection establishing module configured to establish a second wireless connection with the base station with wireless backhaul capability when searching for a base station with wireless backhaul capability, and attempt to implement back by using the second wireless connection Pass and periodically search for base stations with wired backhaul capabilities;
  • a third connection establishing module configured to establish a third wireless connection with the base station with wired backhaul capability after searching for a base station with wired backhaul capability, and implement and core based on the third wireless connection Wireless backhaul between networks.
  • a device for implementing wireless backhaul is applied to a base station, including:
  • a determining module configured to determine a base station type based on a backhaul capability supported by the base station, where the base station type is used to indicate a backhaul capability of the first base station;
  • a sending module configured to broadcast the base station type by using system information.
  • the sending module comprises:
  • a first broadcast submodule configured to broadcast a base station type by using minimum system information
  • a second broadcast sub-module configured to broadcast a base station type by other system information based on the request.
  • a base station including:
  • a memory for storing processor executable instructions
  • processor is configured to:
  • Wireless backhaul with the core network is implemented based on the first wireless connection.
  • a base station including:
  • the base station type is broadcast by system information.
  • a non-transitory computer readable storage medium having stored thereon computer instructions that, when executed by a processor, implement the following steps:
  • Wireless backhaul with the core network is implemented based on the first wireless connection.
  • a non-transitory computer readable storage medium having stored thereon computer instructions that, when executed by a processor, implement the following steps:
  • Determining a base station type where the base station type is used to indicate a backhaul capability of the first base station, based on a backhaul capability supported by the base station;
  • the base station type is broadcast by system information.
  • the base station with wireless backhaul capability can search for a base station with wired backhaul capability after booting, and after the search, the first wireless connection between the base station and the base station with wired backhaul capability, and wireless back through the first wireless connection.
  • the configuration information of the cell signal indicating that the user reports the appropriate cell is carried in the measurement configuration signaling, so that the base station with only the wireless backhaul capability can serve the user equipment, and only has the wireless backhaul capability.
  • the base station can implement the integrated operation of the preamble backhaul.
  • FIG. 1A is a flowchart of a method for implementing wireless backhaul according to an exemplary embodiment.
  • FIG. 1B is a first application scenario diagram of a method for implementing wireless backhaul according to an exemplary embodiment.
  • FIG. 1C is a second application scenario diagram of a method for implementing wireless backhaul according to an exemplary embodiment.
  • FIG. 2 is a flowchart of still another implementation method of wireless backhaul according to an exemplary embodiment.
  • FIG. 3 is a flowchart of still another method for implementing wireless backhaul according to an exemplary embodiment.
  • FIG. 4 is a flowchart of a method for implementing wireless backhaul according to an exemplary embodiment.
  • FIG. 5 is a block diagram of an apparatus for implementing wireless backhaul according to an exemplary embodiment.
  • FIG. 6 is a block diagram of another apparatus for implementing wireless backhaul according to an exemplary embodiment.
  • FIG. 7 is a block diagram of an apparatus for implementing wireless backhaul according to an exemplary embodiment.
  • FIG. 8 is a block diagram of another apparatus for implementing wireless backhaul according to an exemplary embodiment.
  • FIG. 9 is a block diagram of an implementation apparatus suitable for wireless backhaul, according to an exemplary embodiment.
  • the base station with the cable backhaul capability in the core network coverage in FIG. 1B such as the tag 11, the tag 12, and the tag
  • the base station indicated by 13 has a wired backhaul link between the base station with wired backhaul capability and the core network; and the base network has a base station with wireless backhaul capability, such as mark 11, mark 12, and mark 13
  • the other base stations other than the indicated base station are base stations with wireless backhaul capability.
  • the wired backhaul link is not deployed between the base station with the wireless backhaul capability and the core network, and the wired backhaul cannot be implemented.
  • FIG. 1A is a flowchart of a method for implementing wireless backhaul according to an exemplary embodiment
  • FIG. 1B is a first application scenario of a method for implementing wireless backhaul according to an exemplary embodiment.
  • FIG. FIG. 2 is a second embodiment of a method for implementing wireless backhaul according to an exemplary embodiment.
  • the method for implementing the wireless backhaul can be applied to a base station having only wireless backhaul capability, as shown in FIG. 1A.
  • the method for implementing wireless backhaul includes the following steps 101-103:
  • step 101 a base station having wired backhaul capability is searched.
  • the base station with wired backhaul capability can be searched for within a preset time period after powering on.
  • the preset time period may be a fixed time, such as 1 ms.
  • the preset time period may also be a logical time unit, such as 1 subframe, 1 slot, and the like.
  • the base station may search for a base station having wired backhaul capability in a preset time period after the power is turned on, and generally, by monitoring system information, determining whether the base station has a wired back based on the type of the base station indicated in the system system information.
  • the base station can be divided into two base station types: a base station with wired backhaul capability and a base station with wireless backhaul capability.
  • the base station can broadcast its own base station type after booting, and can pass the minimum system letter.
  • the base station type of the broadcast base station in an embodiment, the base station can also broadcast its own base station type by using the system information based on the requested system information, such as system information (System Information Blocks, SIB for short).
  • SIB System Information Blocks
  • step 102 when a base station having wired backhaul capability is found, a first wireless connection with a base station having wired backhaul capability is established.
  • the first wireless connection is a wireless data connection established between the two base stations for transmitting backhaul data.
  • step 103 wireless backhaul with the core network is implemented based on the first wireless connection.
  • the base station with wireless backhaul capability can establish a first wireless connection with a base station having wired backhaul capability through a wireless communication protocol, and the connection is used to implement wireless back. That is, the base station with wireless backhaul capability transmits the backhaul data to the base station with wired backhaul capability, and the base station with wired backhaul capability transmits to the core network device through a wired transmission link, such as a fiber link.
  • a base station 10 with wireless backhaul capability can search for the base station 30 having the wired backhaul capability in the vicinity after the power is turned on, and the base station 30 having the wired backhaul capability can establish a wired connection with the core network device 40, if found, and has the wired backhaul capability.
  • the base station 30 establishes a first wireless connection, and implements wireless backhaul of the base station 10 with wireless backhaul capability based on the first wireless connection, and can search for wireless backhaul when the base station 30 with wired backhaul capability is not found.
  • the base station of the capability and when searching for the base station 20 with the wireless backhaul capability, attempts to establish a second wireless connection with the base station 20 having the wireless backhaul capability, wherein the base station 20 with the wireless backhaul capability may be the other
  • a wireless connection is established between the base stations having the wired backhaul capability, so the base station 10 having the wireless backhaul capability can pass through the base station 20 having the wireless backhaul capability.
  • the second wireless connection between the two implements wireless backhaul, and the base station 10 with wireless backhaul capability in the process can continue to search for the base station with wired backhaul capability, and establish and cable when searching for the base station with wired backhaul capability.
  • the connection between the base stations of the backhaul capability can continue to search for the base station with wired backhaul capability, and establish and cable when searching for the base station with wired backhaul capability.
  • the base station with wireless backhaul capability can search for the base station with wired backhaul capability after booting, and the first wireless between the base station and the base station with wired backhaul capability after searching.
  • the connection is implemented, and the wireless backhaul is implemented by using the first wireless connection, so that the base station having only the wireless backhaul capability can serve the user equipment, and the base station having only the wireless backhaul capability can implement the integrated operation of the forward transmission and back transmission.
  • FIG. 2 is a flowchart of still another method for implementing wireless backhaul according to an exemplary embodiment.
  • This embodiment uses the foregoing method provided by the embodiment of the present disclosure to implement wireless backhaul as a base station with wireless backhaul capability.
  • the following steps are included:
  • step 201 the base station with wired backhaul capability is searched, and step 202 or 204 is performed.
  • step 202 when a base station having wired backhaul capability is found, a first wireless connection with a base station having wired backhaul capability is established.
  • step 203 wireless backhaul with the core network is implemented based on the first wireless connection, and the process ends.
  • steps 201-203 can be referred to the description of steps 101-103 of the embodiment shown in FIG. 1A, and will not be described in detail herein.
  • step 204 when the base station having the line backhaul capability is not found, the base station having the wireless backhaul capability is searched for, and step 205 or step 206 is performed.
  • step 205 when the base station having the wireless backhaul capability is not found, the state is switched to the sleep state, and the flow ends.
  • the base station with the wired backhaul capability if the base station with the wired backhaul capability is not found within the preset time period, and the base station with the wireless backhaul capability is not found, the base station cannot implement the backhaul at present, and cannot serve the user. Device, so you can switch to sleep.
  • the base station that is switched to the sleep state may switch to the awake state after the preset time, and continue to search for the base station with the wired backhaul capability, that is, step 201 is re-executed.
  • step 206 when searching for a base station with wireless backhaul capability, establishing a second wireless connection with the base station having wireless backhaul capability, attempting to implement backhaul through the second wireless connection, and periodically searching for a wired backhaul.
  • a base station that transmits capabilities.
  • the base station with wireless backhaul capability may have multiple base stations with wireless backhaul capability, and when searching for a base station with wired backhaul capability, search for other It is also possible for a base station with wireless backhaul capability to implement wireless backhaul. For example, if the base station 11 with wireless backhaul capability fails to search for a base station with wired backhaul capability, it can try and search for a base station with wireless backhaul capability. 12 establishing a wireless connection, and the base station 12 having the wireless backhaul capability may have established a wireless connection with the base station 13 having the wireless backhaul capability, and the base station 11 having the wireless backhaul capability may pass through the base station 12 having the wireless backhaul capability.
  • the base station 13 with wireless backhaul capability implements wireless backhaul.
  • the wireless backhaul may not be implemented. Therefore, the base station 11 having the wireless backhaul capability needs to be periodically. Continue to search for base stations with wired backhaul capabilities.
  • step 207 after searching for the base station having the wired backhaul capability, establishing a third wireless connection with the base station having the wired backhaul capability, and implementing wireless backhaul with the core network based on the third wireless connection.
  • the first wireless connection, the second wireless connection, and the third wireless connection are both wireless data connections.
  • the second wired connection between the previously established wireless backhaul capability and the wireless backhaul capability may also be released to reduce resource occupation.
  • the base station with the wireless backhaul capability can continue to search for the base station with the wireless backhaul capability when not searching for the base station with the wired backhaul capability, and try to establish and have the wireless backhaul capability after the search.
  • the base station with the backhaul capability can implement backhaul through the base station with wired backhaul capability to ensure wireless backhaul efficiency.
  • FIG. 3 is a flowchart of a method for implementing wireless backhaul according to an exemplary embodiment of the present invention. This embodiment uses the foregoing method provided by the embodiment of the present disclosure to how a base station with wireless backhaul capability searches for a base station.
  • step 301 system information carrying the type of the base station is monitored.
  • each base station may carry a base station type based on pre-configured system information, such as preset system information, such as minimum system information for periodic broadcast, or other system information based on the request.
  • pre-configured system information such as preset system information, such as minimum system information for periodic broadcast, or other system information based on the request.
  • the base station with the wireless backhaul capability can listen to the system information carrying the base station type within a preset time period after the power is turned on.
  • the base station type may be a base station with wireless backhaul capability and a base station with wired backhaul capability.
  • step 302 when the system information carrying the type of the base station is monitored, the backhaul capability that the base station has is determined based on the type of the base station.
  • step 303 if the backhaul capability is a wired backhaul capability, it is determined to search for a base station having wired backhaul capability.
  • the backhaul capability is a wireless backhaul capability
  • the base station can broadcast its own base station type based on the system information, and can detect whether there is a base station with wired backhaul capability based on the monitored broadcast signaling, thereby realizing effective transmission of the base station backhaul capability, thereby facilitating the transmission. Realize wireless backhaul of the base station.
  • FIG. 4 is a flowchart of a method for implementing wireless backhaul according to an exemplary embodiment; this implementation The implementation method of the wireless backhaul can be applied to any base station, as shown in FIG. 4, and includes the following steps 401-402:
  • a base station type is determined based on a backhaul capability supported by the base station, where the base station type is used to indicate a backhaul capability of the first base station.
  • the base station type may be classified into a base station having wireless backhaul capability and a base station having wired backhaul capability.
  • the base station with wired backhaul capability has a wired transmission link with the core network, such as a fiber link; in an embodiment, the base station with wireless backhaul capability is not between the base network and the core network.
  • a wired transmission link With a wired transmission link, a base station that implements wireless backhaul by means of a wireless connection with a base station having wired backhaul capability is required.
  • the base station type is broadcast by system information.
  • the base station type of the base station may be broadcasted by the minimum system information, such as by the system information broadcast base station; in an embodiment, the base station may also broadcast its own base station type by using the system information based on the request, such as through SIB type system information. Broadcast your own base station type.
  • each base station can broadcast its own base station type after being powered on, and then the base station with wireless backhaul capability can search for a base station with wired backhaul capability to implement wireless backhaul, which is helpful for achieving wireless backhaul capability.
  • FIG. 5 is a block diagram of an apparatus for implementing wireless backhaul, which is applied to a base station with wireless backhaul capability, as shown in FIG. 5, and the apparatus for implementing wireless backhaul includes:
  • the first search module 51 is configured to search for a base station with wired backhaul capability
  • the first connection establishing module 52 is configured to establish a first wireless connection with the base station having the wired backhaul capability when the first search module 51 searches for the base station with the wired backhaul capability;
  • the backhaul implementation module 53 is configured to implement wireless backhaul with the core network based on the first wireless connection established by the first connection establishing module 52.
  • FIG. 6 is a block diagram of another apparatus for implementing wireless backhaul according to an exemplary embodiment. As shown in FIG. 6, on the basis of the foregoing embodiment shown in FIG. 5, in an embodiment, the first search is performed.
  • Module 51 includes:
  • the monitoring submodule 511 is configured to listen to system information carrying a type of the base station
  • the first determining submodule 512 is configured to determine, according to the type of the base station, a backhaul capability that the base station has when listening to the system information carrying the type of the base station;
  • the second determining sub-module 513 is configured to determine to search for a base station with wired backhaul capability if the backhaul capability is a wired backhaul capability.
  • the apparatus further includes:
  • the second search module 54 is configured to search when no base station with line backhaul capability is found a base station with wireless backhaul capability;
  • the state switching module 55 is configured to switch to the sleep state when no base station with wireless backhaul capability is found.
  • the apparatus further includes:
  • the second connection establishing module 56 is configured to establish a second wireless connection with the base station having the wireless backhaul capability when searching for the base station with the wireless backhaul capability, and try to implement the backhaul and cycle through the second wireless connection. Search for base stations with wired backhaul capabilities;
  • the third connection establishing module 57 is configured to establish a third wireless connection with the base station having the wired backhaul capability after searching for the base station with the wired backhaul capability, and implement the third wireless connection between the core network and the core network. Wireless backhaul.
  • FIG. 7 is a block diagram of an apparatus for implementing wireless backhaul, which is applied to a base station. As shown in FIG. 7, the apparatus for implementing wireless backhaul includes:
  • the determining module 71 is configured to determine a base station type, where the base station type is used to indicate a backhaul capability of the first base station, based on a backhaul capability supported by the base station;
  • the sending module 72 is configured to broadcast the base station type by using system information.
  • FIG. 8 is a block diagram of another wireless backhaul implementation apparatus according to an exemplary embodiment.
  • the sending module 72 include:
  • the first broadcast submodule 721 is configured to broadcast the base station type by using minimum system information; or
  • the second broadcast sub-module 722 is configured to broadcast the base station type by other system information based on the request.
  • FIG. 9 is a block diagram suitable for a data transmitting apparatus, according to an exemplary embodiment.
  • Apparatus 900 can be provided as a base station.
  • device 900 includes a processing component 922, a wireless transmit/receive component 924, an antenna component 926, and a signal processing portion specific to the wireless interface.
  • Processing component 922 can further include one or more processors.
  • one of the processing components 922 can be configured to perform the method of implementing the wireless backhaul described in the first and second aspects above.
  • one of the processing components 922 can be configured to perform the method of implementing the wireless backhaul described in the second aspect above.
  • non-transitory computer readable storage medium comprising instructions executable by processing component 922 of apparatus 900 to perform the methods described above in the first and second aspects.
  • 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.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et à un appareil de mise en oeuvre de liaison de raccordement sans fil, ainsi qu'un équipement d'utilisateur et une station de base. Le procédé de mise en œuvre de liaison de raccordement sans fil comprend : recherche d'une station de base ayant une capacité de liaison de raccordement filaire ; lorsque la station de base qui possède une capacité de liaison de raccordement filaire est trouvée, établissement d'une première connexion sans fil avec la station de base ayant une capacité de liaison de raccordement filaire ; et mise en œuvre d'une liaison de raccordement sans fil avec un réseau central sur la base de la première connexion sans fil. Au moyen de la solution technique de la présente invention, une station de base possédant seulement une capacité de liaison de raccordement sans fil peut desservir un équipement d'utilisateur, et la station de base ayant seulement une capacité de liaison de raccordement sans fil peut également mettre en œuvre une opération intégrée de retransmission avant et de liaison de raccordement.
PCT/CN2017/102319 2017-09-19 2017-09-19 Procédé et appareil de mise en œuvre de liaison de raccordement sans fil, et station de base WO2019056186A1 (fr)

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PCT/CN2017/102319 WO2019056186A1 (fr) 2017-09-19 2017-09-19 Procédé et appareil de mise en œuvre de liaison de raccordement sans fil, et station de base
CN201780001442.XA CN108370598B (zh) 2017-09-19 2017-09-19 无线回传的实现方法、装置及基站

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PCT/CN2017/102319 WO2019056186A1 (fr) 2017-09-19 2017-09-19 Procédé et appareil de mise en œuvre de liaison de raccordement sans fil, et station de base

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CN107135507A (zh) * 2016-02-26 2017-09-05 中兴通讯股份有限公司 一种无线回程路径信息获取方法及装置

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US20150078162A1 (en) * 2013-09-16 2015-03-19 Qualcomm Incorporated Backhaul selection for wireless communication
EP3209051A1 (fr) * 2014-10-17 2017-08-23 Sony Corporation Appareil
CN106162817A (zh) * 2015-04-03 2016-11-23 北京佰才邦技术有限公司 无线回传链路的建立方法、装置及通信系统
WO2017107104A1 (fr) * 2015-12-23 2017-06-29 华为技术有限公司 Procédé et dispositif de communication

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CN112770329A (zh) * 2020-12-30 2021-05-07 京信网络系统股份有限公司 物联网基站、数据回传处理系统及数据回传处理方法

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CN108370598B (zh) 2022-02-22

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