WO2006133602A1 - Système de sélection d’antennes distribuées aux stations de base de communication sans fil dynamiques - Google Patents

Système de sélection d’antennes distribuées aux stations de base de communication sans fil dynamiques Download PDF

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Publication number
WO2006133602A1
WO2006133602A1 PCT/CN2005/000865 CN2005000865W WO2006133602A1 WO 2006133602 A1 WO2006133602 A1 WO 2006133602A1 CN 2005000865 W CN2005000865 W CN 2005000865W WO 2006133602 A1 WO2006133602 A1 WO 2006133602A1
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WO
WIPO (PCT)
Prior art keywords
antenna
base station
antennas
value
implementation method
Prior art date
Application number
PCT/CN2005/000865
Other languages
English (en)
Chinese (zh)
Inventor
Yutang Xie
Xiaoming Wang
Jingyi Li
Lianbin Xiao
Original Assignee
Zte Corporation
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 Zte Corporation filed Critical Zte Corporation
Priority to CNA2005800492170A priority Critical patent/CN101147333A/zh
Priority to PCT/CN2005/000865 priority patent/WO2006133602A1/fr
Publication of WO2006133602A1 publication Critical patent/WO2006133602A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive antennas

Definitions

  • the present invention relates to a wireless distributed base station dynamic distributed antenna selection system and a method for realizing the same. Background technique
  • a system In a mobile communication system, a system is generally composed of a base station and a terminal. With the informatization of society, people are increasingly relying on networks and various multimedia data services. Moreover, they want to communicate with anyone and any organization at any time and any place. This requires the use of advanced technologies in broadband wireless communication systems. To meet the needs of civilization. For example, Multi Antenna (MAE) will be used in next-generation wireless communication systems (the next three generations / fourth generation B3G / 4G, wireless LAN WLAN, broadband wireless access BWA, mobile broadband wireless access MBWA, etc.) The widely used technology, but in this way, the implementation complexity and cost of the system increases linearly with the number of antennas used.
  • MAE Multi Antenna
  • each transmitting antenna requires one transmitting channel, and each receiving antenna requires a receiving channel to cooperate with it.
  • the complexity and cost of the channel are much higher, especially for the transmission channel, which requires an expensive broadband high-power amplifier.
  • the radio frequency (hereinafter referred to as RF) part of the cost is quite expensive.
  • the new broadband wireless communication system requires a wider frequency band, it is necessary to implement wireless transmission in a frequency band higher than the current frequency, and it is generally considered to be 5 GHz or more according to the current situation. In these bands, the attenuation of radio wave propagation will be better than now.
  • Wireless communication systems eg 2 GHz and below
  • the former needs a much larger transmission power than the latter, which is uneconomical and unrealistic.
  • the current distributed antenna selection system can adopt the method of remote radio frequency.
  • each antenna covers a relatively small range, so as to better solve the wireless transmission in the high frequency band. Big attenuation problem.
  • the one-to-one correspondence between the antenna and the transceiver channel still cannot reduce the cost of the system, and the device resources cannot be optimally utilized, and the dynamically adjusted cell coverage cannot be obtained.
  • a method and apparatus for antenna selective transmit diversity is given in Chinese Patent Publication No. CN1499867A.
  • the antenna selection method can reduce the system cost to a certain extent, but cannot meet the requirement of efficiently designing the cell coverage shape as needed, and can not solve the serious attenuation problem of wireless transmission in the high frequency band.
  • current antenna selection techniques do not adequately consider the type of service of each user and the degree of matching with the surrounding antenna groups in the case of multiple users, and therefore are not optimal for device resource allocation. Therefore, it is necessary to find a new antenna deployment solution. Summary of the invention
  • an object of the present invention is to provide a wireless communication base station dynamic distributed antenna selection system and an implementation method thereof.
  • the invention relates to a wireless communication base station dynamic distributed antenna selection system and an implementation method thereof, relating to a wireless communication base station dynamic distributed antenna selection system, and an efficient device resource configuration and cell coverage for the system by using an antenna selection method.
  • a wireless communication base station dynamic distributed antenna selection system of the present invention is characterized in that it comprises an N-channel transmitter, an N-channel receiver and an antenna family consisting of K independent antenna units, wherein K is greater than N.
  • the above-mentioned antenna unit is in the form of satisfying the system requirements, and there is no corresponding limitation; the base station connected to the antenna family composed of the above K antenna elements is not limited to one, wherein the base station is composed of N transceiver channels.
  • a method for implementing a dynamic distributed antenna selection system for a wireless communication base station includes:
  • a base station composed of N transceiver channels uses a N-channel transmitter of the above base station and N antennas selected from K antenna units to form a distributed downlink transmission structure at the time of transmission; the base station receives K antennas at the time of reception.
  • the unit uses N antennas and N receivers of the above base station to form a distributed receiving structure, so as to meet the severe attenuation of the high-band wireless transmission in the broadband wireless communication system, the relatively small area coverage and high data rate Business characteristics requirements;
  • the N antennas corresponding to the transmitting channel and the N antennas corresponding to the receiving channel are overlapped under normal conditions, but may not overlap completely.
  • the deployment of the antenna family consisting of the above K antenna elements is determined by the natural environment of the specific cell.
  • the antenna selection method includes the following steps: Step 1: The base station adopts an initial antenna deployment model to perform downlink broadcast paging on the cell, and the terminal feedbacks the matched antenna group at the location after receiving the information (Matching Antenna Group) (hereinafter referred to as MAG) and its associated Channel State Information (CSI) and/or Service Type (hereinafter referred to as ST) information to the base station;
  • MAG Monitoring Antenna Group
  • CSI Channel State Information
  • ST Service Type
  • Step 2 The base station performs cell antenna selection and antenna distribution according to the feedback information.
  • the MAG refers to an antenna set formed by an antenna that is closest to the user and has a good CSI and can better match the user service, where the value is 1 when the matching is good, and 0 when the matching is not, and The value is greater than 0 and less than 1 depending on the degree of matching.
  • the above CSI refers to information related to the characteristics of the air channel, wherein the value of the CSI is greater than 0 and less than 1, that is, when the channel quality from the antenna of the base station to the user is the best, the value is 1 and the worst is The value is 0.
  • the foregoing ST refers to the service type of the user, including whether it is a real-time service and a data rate, where the real-time service requires a value of 1, and the data service is from a large to a small data rate, and the value of the service type is close to 1 To 0.
  • the above cell coverage refers to the following situations: Some areas have a large number of users, A large demand for communication capacity forms a so-called hot spot; in other places, the communication capacity may have been small, as long as it is covered, or some areas do not need to be covered at all. Therefore, a distributed antenna selection system is used to form cells having different communication capacity densities or shapes to meet such demands. However, in contrast to such statically shaped cells, in modern cities, hotspots often change dynamically according to people's activities.
  • the residential area often has fewer users and communication capacity requirements; while the office area, business area, exhibition place, etc., due to crowds, there are a large number of users and antenna capacity requirements.
  • the evening it may be the opposite. If both are deployed in a traditional system, designed to meet their maximum needs, of course, they can meet day and night needs, but obviously a large part of the equipment resources are wasted.
  • the deployment of the antenna family consisting of the above ⁇ antenna elements is deployed according to the maximum communication capacity requirement of the area to be covered, but how many antennas are selected and which antennas are connected to the base station, dynamically change according to actual capacity requirements, and the above-mentioned cells can be formed. Hotspot coverage that requires large-capacity communication, and the hotspot area is not limited to one, and is dynamically changed. Through the antenna selection method described above, the distributed antenna family is dynamically selected to form a desired cell shape and capacity coverage.
  • the shape of the antenna family and the number of antenna elements ⁇ must have certain requirements.
  • the shape of the antenna family deployment includes a planar array, a circular array, a line array, or other forms of 2D and 3D arrays; the number K of antenna elements should be greater than the number N of transceivers, so that when the transceiver antenna unit is selected There is enough freedom.
  • the form of the antenna unit itself is not limited, so as to meet the requirements of the system.
  • the invention adopts a distributed antenna selection system in a base station of a wireless communication system, and solves the problem of large attenuation of wireless transmission in a high frequency band, and adopts a certain antenna family deployment and an antenna selection method to achieve optimal configuration of equipment resources. In the same station, a specific antenna family is used to achieve the required cell coverage. Moreover, compared with the traditional distributed antenna selection system, the implementation cost can be greatly reduced.
  • 1 is a composition diagram of a conventional multi-antenna base station system
  • FIG. 2 is a schematic diagram of a reference model of the distributed antenna selection system of the present invention
  • FIG. 3 is a schematic diagram of an embodiment of the distributed antenna selection system of the present invention.
  • FIG. 1 is a composition diagram of a conventional multi-antenna base station system, which generally requires as many transmission and reception antenna units as the number of channels of the receiver and the transmitter, respectively.
  • MIMO Multi Input Multi Output
  • each antenna needs to be connected to one transceiver; or in a general distributed antenna system, the same requirements are met.
  • One of the biggest drawbacks of this system is that as the number of antennas increases, the cost of implementing the device will increase linearly.
  • 104 to 1N4 are antennas shared by N transceivers, and correspondingly, N transmitters and N receivers must be connected thereto.
  • FIG. 2 is a schematic diagram of a reference model of the distributed antenna selection system of the present invention. As shown in FIG.
  • the wireless communication base station 101 of the system having N transceiver channels transmits data to be transmitted through N antennas A1-AN of the K antenna elements A1-AK.
  • the uplink information of multiple users is received through the same N antennas.
  • This method can be used directly in the Time Division Duplex (hereinafter referred to as TDD) communication mode because the uplink and downlink channel characteristics of TDD are reciprocal.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • the base station 301 is connected thereto;
  • Step 2 The above antenna units A1 to ⁇ 9 can be uniformly covered by the cell, which is assumed to be a rectangle 302, and the base station and any user in the rectangular cell can complete the establishment of paging, channel and basic information through the base station;
  • Step 3 After completing the basic information search of the multi-user through step 2, the base station 301 can obtain information such as MAG, CSI, and ST, and provide preliminary information for dynamic distributed cell formation and antenna selection.
  • Step 4 Establish a preliminary connection, track user and channel dynamic changes, and form a criterion for antenna selection;
  • Step 5 Complete antenna selection according to the information described in steps 3 and 4 above.
  • a dynamic elongated cell 303 is formed, and two hot spot areas 304 requiring a large capacity are formed in the cell. Antennas outside 303 are not selected. In 303, it is also possible that not all antennas are selected. For example, A3, A10, A13, and A17 are not selected, and the rest are selected.
  • Step 6. Periodically repeat steps 3 through 5 above to implement dynamic antenna selection.
  • the above is a detailed description of the working principle of the present invention, but this is merely a visual example for the purpose of understanding, and should not be construed as limiting the scope of the invention. Also, various possible modifications or substitutions may be made in accordance with the description of the technical solutions of the present invention and the preferred embodiments thereof, and all such changes or substitutions are intended to fall within the scope of the appended claims.

Abstract

L’invention concerne une sorte de système de sélection d’antennes distribuées aux stations de base de communication sans fil et le procédé de mise en œuvre correspondant qui comprennent : un émetteur de parcours N, un récepteur de parcours N et un réseau d’antennes qui est composé d’éléments d’antenne indépendants K, où K est supérieur à N. Le procédé de mise en œuvre de la présente invention consiste à choisir et exécuter les antennes de transmission N à partir desdits éléments d’antenne K, conformément aux conditions de demande de service et de distribution de l’utilisateur. Ce procédé réalise également la transmission adéquate ou nécessaire dans une cellule spécifique. Au moment de la réception, le procédé choisit les antennes N pour effectuer la réception requise. La règle du procédé de sélection de l’antenne est réalisée de façon synthétique, en fonction du degré de correspondance du service de l’utilisateur, de la capacité du système, du facteur de qualité etc.
PCT/CN2005/000865 2005-06-16 2005-06-16 Système de sélection d’antennes distribuées aux stations de base de communication sans fil dynamiques WO2006133602A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNA2005800492170A CN101147333A (zh) 2005-06-16 2005-06-16 一种无线通信基站动态分布式天线选择系统及其实现方法
PCT/CN2005/000865 WO2006133602A1 (fr) 2005-06-16 2005-06-16 Système de sélection d’antennes distribuées aux stations de base de communication sans fil dynamiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2005/000865 WO2006133602A1 (fr) 2005-06-16 2005-06-16 Système de sélection d’antennes distribuées aux stations de base de communication sans fil dynamiques

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WO2006133602A1 true WO2006133602A1 (fr) 2006-12-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101848019A (zh) * 2009-03-27 2010-09-29 富士通株式会社 通信设备和形成通信设备的服务区的方法
CN103229428A (zh) * 2010-11-22 2013-07-31 三星电子株式会社 蜂窝移动通信系统用的天线分配设备和方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101610135B (zh) * 2008-06-20 2012-12-26 电信科学技术研究院 分布式天线系统及其数据传输方法、中心控制器
CN111918362A (zh) * 2020-08-10 2020-11-10 展讯通信（上海）有限公司 无线连接扫描方法及装置、终端、存储介质

Citations (3)

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Publication number Priority date Publication date Assignee Title
CN1524390A (zh) * 2001-06-08 2004-08-25 耐克斯特格网络公司 在使用空间分集的无线通信网络内将天线连接至基站的网络和方法
US20040204105A1 (en) * 2002-05-24 2004-10-14 Ying-Chang Liang Method and apparatus for a base station with multiple distributed antennas to communicate with mobile stations
CN1568588A (zh) * 2001-06-06 2005-01-19 高通股份有限公司 无线通信系统中的天线分集的方法和设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1568588A (zh) * 2001-06-06 2005-01-19 高通股份有限公司 无线通信系统中的天线分集的方法和设备
CN1524390A (zh) * 2001-06-08 2004-08-25 耐克斯特格网络公司 在使用空间分集的无线通信网络内将天线连接至基站的网络和方法
US20040204105A1 (en) * 2002-05-24 2004-10-14 Ying-Chang Liang Method and apparatus for a base station with multiple distributed antennas to communicate with mobile stations

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101848019A (zh) * 2009-03-27 2010-09-29 富士通株式会社 通信设备和形成通信设备的服务区的方法
CN103229428A (zh) * 2010-11-22 2013-07-31 三星电子株式会社 蜂窝移动通信系统用的天线分配设备和方法
CN103229428B (zh) * 2010-11-22 2016-03-02 三星电子株式会社 蜂窝移动通信系统用的天线分配设备和方法
US9484998B2 (en) 2010-11-22 2016-11-01 Samsung Electronics Co., Ltd Antenna allocation apparatus and method for cellular mobile communication system

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