WO2009049534A1 - Procédé, système, station de base et équipement d'accès destinés à envoyer et à acquérir des informations de la station de base - Google Patents

Procédé, système, station de base et équipement d'accès destinés à envoyer et à acquérir des informations de la station de base Download PDF

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Publication number
WO2009049534A1
WO2009049534A1 PCT/CN2008/072623 CN2008072623W WO2009049534A1 WO 2009049534 A1 WO2009049534 A1 WO 2009049534A1 CN 2008072623 W CN2008072623 W CN 2008072623W WO 2009049534 A1 WO2009049534 A1 WO 2009049534A1
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WO
WIPO (PCT)
Prior art keywords
base station
attribute information
broadcast message
information
access device
Prior art date
Application number
PCT/CN2008/072623
Other languages
English (en)
Chinese (zh)
Inventor
Linfeng Xia
Yinggang Du
Original Assignee
Huawei Technologies Co., Ltd.
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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009049534A1 publication Critical patent/WO2009049534A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method, system, base station, and access device for transmitting and acquiring base station information.
  • the existing radio access network needs to consider the signal shadow fading caused by terrain features, etc. Therefore, it is necessary to set a relay base station (RS, Relay Stat ion) to receive in a region where the base station signal fading is relatively serious.
  • RS relay base station
  • the signal sent by the base station to which it belongs forwards the received signal to other RSs or user access terminals (AT, Acces s Termina l).
  • AT Acces s Termina l
  • the position of the RS can be appropriately arranged so that the signal can avoid the undesired transmission path to reduce the attenuation, and the signal power can be increased again when the signal is forwarded, so that the AT can receive the signal of higher quality.
  • the multi-hop RS can be used as a relay method, or multiple RSs form a network to forward the signal to the AT.
  • the base station to which the RS belongs is referred to as its primary base station.
  • the Femtoce l l base station is mainly for the problem of incomplete indoor coverage. By installing a small power base station indoors, the indoor signal coverage is improved, and the communication capability of the AT indoors is enhanced.
  • the Femtoce l l base station has no difference in structure and function from the normal base station, but the power is much smaller, and the working distance is generally within several tens of meters, which has a good effect on improving indoor coverage.
  • the Femtoce l base receives the signal from its primary base station and forwards the signal to the RS or AT within its own coverage. Since the Femtoce l base station only provides services for registered authorized users and refuses to provide services for unauthorized users, this type of base station is usually referred to as a private base station.
  • RS and AT are collectively referred to as access devices.
  • the inventors have found that at least the following problems exist in the prior art solution: If the access device is located within the coverage of multiple base stations, there are multiple base stations for the access device to selectively access, and each base station No relevant information is provided to the access device for the access device to select which base station to access, At this time, the access device will randomly select to access one of the base stations, and cannot select one of the most suitable base stations.
  • the embodiments of the present invention provide a method, a system, a device, and an access device for sending and acquiring base station information.
  • the access device selects the most suitable one. Base station.
  • a method for transmitting base station information comprising:
  • the base station carries the base station attribute information in the broadcast message to the access device within its coverage area.
  • a system for transmitting base station information comprising: a base station and an access device;
  • the base station is configured to carry the base station attribute information in a broadcast message to an access device in its coverage area;
  • the access device is configured to receive a broadcast message sent by the base station.
  • a base station includes: a processing unit and a sending unit;
  • the processing unit is configured to carry the base station attribute information in a broadcast message, and provide the broadcast message to the sending unit;
  • the sending unit is configured to send a broadcast message provided by the processing unit.
  • a method for obtaining base station information comprising:
  • the access device receives the broadcast message sent by the base station, and acquires the base station attribute information of the base station from the received broadcast message.
  • An access device includes:
  • a receiving unit configured to receive a broadcast message sent by the base station
  • an acquiring unit configured to acquire base station attribute information from a broadcast message received by the receiving unit.
  • the base station carries the base station attribute information in a broadcast message and sends it to the coverage within its own coverage.
  • the access device provides its own base station attribute information, so that when the access device is within the coverage of multiple base stations, the base station attribute information of the plurality of base stations that can be accessed may be received, and according to the base stations of the multiple base stations The attribute information selects the most suitable base station for access.
  • FIG. 1 is a structural diagram of a system for transmitting base station information according to an embodiment of the present invention
  • FIG. 2 is a first structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 3 is a second structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 4 is a structural diagram of an access device according to an embodiment of the present invention.
  • the method provided by the embodiment of the present invention mainly includes:
  • the base station carries the attribute information of the base station in the broadcast message and sends the information to the access device in the coverage area.
  • the base station may be a normal base station, a private base station, or an RS; the access device may be an RS or an AT.
  • the base station attribute information may be the actual distance of the base station from the primary base station, or may be the hop count of the base station from the primary base station, or may be the mobility of the base station, or may be any combination of the foregoing information. .
  • Carrying the base station attribute information in the broadcast message may be: sending its own base station attribute information It is carried in the superframe prefix of the superframe, and then the superframe is transmitted; the base station attribute information of the superframe can also be carried in the normal physical frame of the superframe, and then the superframe is transmitted.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the RS can transmit its own hop count from its primary base station through the forward broadcast control channel (F-PBCCH) of the superframe prefix.
  • F-PBCCH forward broadcast control channel
  • Table 1 shows the transmission payload structure of the existing F-PBCCH, and the reserved field in the transmission payload of the F-PBCCH can be used to identify the hop count of the RS from its primary base station, for example, using 2 bits therein.
  • the identification for example, uses the "00" identifier to hop from its primary base station, ⁇ uses the "01" identifier to hop from its primary base station 2, and uses the "10" identifier to hop from its primary base station.
  • the number of bits in which the bit is used is not limited, and the number of bits can be determined according to the actual situation of the number of hops of the main base station.
  • the ATs located in multiple RS coverages demodulate the F-PBCCH to obtain the hop count information of each RS from its primary base station, and select one of the hops with the least number of hops.
  • Embodiment 2 Taking the UMB system as an example, the RS can transmit its own distance from its primary base station through the forward fast paging channel (F-QPCH) of the superframe prefix.
  • F-QPCH forward fast paging channel
  • Table 2 shows the transmission payload structure of the existing F-QPCH.
  • the reserved field in the transmission payload of the F-QPCH can also be used to identify the actual distance of the RS from its primary base station. For example, if you use 3 of them to identify, you can segment the actual distance of the RS from the primary base station, and use "000" to identify its actual distance from its primary base station to within lkm, using "001".
  • the actual distance from its primary base station is identified as lkm to 2km, and the actual distance from its primary base station is identified by "010" as 2km to 3km.
  • the number of bits in which the bit is used is not limited, and the number of bits can be determined according to the actual situation.
  • the ATs located in multiple RS coverages demodulate the F-QPCH to obtain the actual distance information of each RS from its primary base station. You can select the RS that is closest to the actual distance to select access.
  • the reserved field of the transmission payload in the time division multiplexed pilot channel 3 (T-Pilot 3) and/or the forward sub-broadcast control channel (F-SBCCH) in the superframe prefix may also be used to transmit the base station attribute. information.
  • T-Pilot 3 time division multiplexed pilot channel 3
  • F-SBCCH forward sub-broadcast control channel
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the RS can transmit its own mobility information through the control channel in the normal physical frame.
  • the mobility of RS can usually be divided into three types: fixed, nomadic, and mobile.
  • a fixed type refers to an RS whose position does not change; a mobility refers to an RS whose position changes frequently; a nomad type refers to an RS whose position sometimes changes and is fixed.
  • a pass can be preset
  • the transport message carries the mobility information of the RS, and then transmits through the control channel in the common physical frame, for example, in the form of time division occupation in the forward control channel (SCCH), sharing the SCCH with the existing broadcast message in the SCCH.
  • a control channel may also be preset in the normal physical frame to transmit the mobility information of the RS.
  • the preset transmission message may be an otherwise defined transmission message.
  • the preset control channel may be a separately set control channel, for example, another control channel dedicated to transmit base station attribute information in the data area.
  • the ATs located in multiple RS coverages demodulate the common physical frames to obtain the mobility information of each RS.
  • the fixed, nomadic, and mobile types can be selected according to the priority from high to low.
  • the base station selects access, that is, preferentially selects a fixed type of RS to select access, followed by nomadic type.
  • the AT can obtain various base station attribute information after demodulating all the channels carrying the attribute information of the base station, and integrate various base station performance factors to select an appropriate RS access.
  • an appropriate RS access may be selected according to the priority of various base station attribute information presets. For example, the priority of the hop count from the primary base station may be preset, and the mobile performance information is used. The actual distance from its primary base station is the lowest. It is also possible to preset the weights of various base station attribute information, and select an appropriate RS access according to the weight of each base station attribute information.
  • which specific base station attribute information is transmitted in which control channel is not limited, for example, the hop count of the RS from its primary base station may be transmitted in the F-QPCH, in the F-PBCCH. It is also possible to transmit the actual distance of the RS from its primary base station.
  • RS can be used to identify the RS as a fixed RS, "001" to identify the RS as a nomadic RS, and "010" to identify the RS.
  • RS is a mobile RS, with "011” indicating that the RS is 1 hop from its primary base station, and "100” is used to identify the RS from its primary base station 1 hop, and the base station attribute information is passed through the F-PBCCH of the superframe prefix.
  • the transport payload reservation field is carried.
  • the ATs located in the coverage of the multiple RSs demodulate the channel carrying the attribute information of the base station, and obtain the base station of each RS.
  • the attribute information can be combined with various base station performance factors to select an appropriate RS access.
  • the base station type identifier may be simultaneously carried in the reserved field of the above-mentioned several channel transmission payloads, and simultaneously sent to the AT.
  • the three bits of the F-PBCCH transmission payload reservation field may be used to perform the RS and the primary base station hop count and the base station type unified identification, and the "000" may be used to identify the ordinary base station, and the "001" to identify the private base station.
  • "Unauthorized user access is not allowed. "010” identifies the private base station and allows unauthorized users to access when the resource is idle. "011” identifies the RS and hops from its primary base station 1. "100” identifies the RS and is away from its primary base station 2. Jump, "1 01” identifies the RS and hops from its primary base station 3, "110" identifies the RS and is more than 3 hops from its host station.
  • the AT can also select which base station to access according to the base station type identifier. For example, if the AT is available for selection in the normal base station and the RS, the AT can preferentially select the ordinary base station for access.
  • FIG. 1 is a system for transmitting base station information according to an embodiment of the present invention.
  • the system includes: a base station 100 and an access device 110 in a coverage range of the base station 100.
  • the base station 100 is configured to carry its own base station attribute information in a broadcast message and send it to an access device within its coverage range.
  • the access device 110 is configured to receive a broadcast message sent by the base station 100.
  • the base station 100 can be a normal base station, a private base station, or an RS; the access device 110 can be an AT or an RS.
  • the structure of the base station 100 can be as shown in FIG. 2.
  • the base station 100 can include: a processing unit 101 and a sending unit 102.
  • the processing unit 101 is configured to carry its own base station attribute information in a broadcast message, and provide the broadcast message to the sending unit 102.
  • the sending unit 102 is configured to send a broadcast message provided by the processing unit 101.
  • the processing unit 101 may include: an attribute information storage unit 103 and an information carrying unit
  • the attribute information storage unit 103 is configured to store base station attribute information of the base station where the host is located.
  • the information carrying unit 104 is configured to carry the attribute information of the base station stored in the attribute information storage unit 103 With the reserved field in the F-QPCH transport payload, and/or carrying the base station attribute information stored in the attribute information storage unit 103 in the reserved field of the F-QPCH transport payload, and/or the attribute information storage unit
  • the stored base station attribute information is carried in a reserved field of the T-Pilot 3 transmission payload, and/or the base station attribute information stored in the attribute information storage unit 103 is carried in a reserved field of the F-SBCCH transmission payload.
  • the base station attribute information stored by the attribute information storage unit 103 may include one or any combination of the actual distance information of the base station from the primary base station, the hop count information of the base station from the primary base station, and the mobility information of the base station, and may also include Type information of the base station.
  • the processing unit 101 is configured to carry the base station attribute information in the superframe prefix of the superframe. If the processing unit 101 is configured to carry the base station attribute information in the normal physical frame of the superframe, another one may be used.
  • the structure as shown in FIG. 3, may include: an attribute information storage unit 105 and a broadcast message generating unit 106.
  • the attribute information storage unit 105 is configured to store base station attribute information of the base station where the base station is located.
  • the broadcast message generating unit 106 is configured to carry the base station information stored in the attribute information storage unit 105 in a preset one of the broadcast messages, and place the broadcast message in an existing control channel of the normal physical frame or preset control.
  • the preset broadcast message here may be a separately set broadcast message, and the preset control channel may be an additionally set control channel.
  • the structure of the above two processing units 101 may be selected one of them, or two structures may be used at the same time, that is, the processing unit 101 simultaneously uses a superframe prefix and a normal physical frame to transmit a plurality of base station attribute information.
  • the access device 110 may be configured as shown in FIG. 4, and the access device 110 may include: a receiving unit 111 and an obtaining unit 112.
  • the receiving unit 111 is configured to receive a broadcast message sent by the base station.
  • the obtaining unit 112 is configured to obtain base station attribute information from the broadcast message received by the receiving unit 111.
  • the obtaining unit 112 may obtain the base station attribute information from the super frame prefix of the super frame, and may specifically: transmit the reserved word of the payload from the reserved field of the F-QPCH transmission payload, or from the ⁇ ) ⁇ Pi lot 3 In the segment, or the reserved field of the F-SBCCH transmission payload, the base station attribute information is obtained.
  • the base station attribute information may also be obtained from the common physical frame of the super frame, which may be: a preset transmitted from the control channel of the ordinary physical frame. The base station attribute information is obtained in the broadcast message.
  • the access device 110 may further include: a selecting unit 113, configured to: when the receiving unit 111 receives the broadcast message sent by the multiple base stations, the base station included in the attribute information of the plurality of base stations acquired by the acquiring unit 112 is away from the main The actual distance information of the base station, and/or the hop count information of the base station from its primary base station, and/or the mobility information of the base station, select one of the plurality of base stations.
  • a selecting unit 113 configured to: when the receiving unit 111 receives the broadcast message sent by the multiple base stations, the base station included in the attribute information of the plurality of base stations acquired by the acquiring unit 112 is away from the main The actual distance information of the base station, and/or the hop count information of the base station from its primary base station, and/or the mobility information of the base station, select one of the plurality of base stations.
  • the base station carries its own base station attribute information in a broadcast message and sends it to its own coverage. Access device.
  • the access device in the coverage of the base station is provided with its own base station attribute information, so that when the access device is within the coverage of multiple base stations, multiple base stations can be received.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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

Abstract

Cette invention se rapporte à un procédé, à un système et à une station de base destinés à envoyer des informations d'une station de base. La station de base introduit les informations d'attributs de station de base dans un message de diffusion, et l'envoie aux équipements d'accès à l'intérieur de sa zone de couverture. De cette façon, les équipements d'accès à l'intérieur de la zone de couverture de la station de base reçoivent les informations d'attributs de station de base d'eux-mêmes. Par conséquent, quand un équipement d'accès se trouve dans la zone de couverture de multiples stations de base, il peut recevoir les informations d'attributs de station de base de multiples stations de base auxquelles il est possible d'accéder, et il peut sélectionner la station de base la plus appropriée à laquelle accéder selon les informations d'attributs de station de base des multiples stations de base.
PCT/CN2008/072623 2007-10-11 2008-10-09 Procédé, système, station de base et équipement d'accès destinés à envoyer et à acquérir des informations de la station de base WO2009049534A1 (fr)

Applications Claiming Priority (2)

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CN200710163709.3 2007-10-11
CNA2007101637093A CN101409927A (zh) 2007-10-11 2007-10-11 发送和获取基站信息的方法、系统、基站和接入设备

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WO2009049534A1 true WO2009049534A1 (fr) 2009-04-23

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Cited By (1)

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EP3820201A4 (fr) * 2018-12-17 2021-08-25 Huawei Technologies Co., Ltd. Procédé et appareil de communication

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CN101932139A (zh) * 2009-06-26 2010-12-29 中兴通讯股份有限公司 指示基站类型的方法、获取基站类型的方法及系统
CN102547892B (zh) * 2010-12-20 2014-12-10 大唐移动通信设备有限公司 一种游牧数据接入系统、装置及数据传输方法
CN102547910A (zh) * 2012-02-09 2012-07-04 中国联合网络通信集团有限公司 无线接入点选择方法及无线接入点
CN104955112A (zh) * 2014-03-31 2015-09-30 中国电信股份有限公司 小小区的服务指示方法和系统
EP3383097B1 (fr) * 2017-03-30 2019-11-13 Wipro Limited Procédé et équipement utilisateur pour effectuer une procédure d'accès au réseau initiale
CN108391470A (zh) * 2017-11-10 2018-08-10 北京小米移动软件有限公司 回传链路的建立方法、装置及基站

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