JP2000049683A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2000049683A5 JP2000049683A5 JP1998210498A JP21049898A JP2000049683A5 JP 2000049683 A5 JP2000049683 A5 JP 2000049683A5 JP 1998210498 A JP1998210498 A JP 1998210498A JP 21049898 A JP21049898 A JP 21049898A JP 2000049683 A5 JP2000049683 A5 JP 2000049683A5
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- communication system
- mobile station
- base station
- receiver
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000010187 selection method Methods 0.000 claims 3
Claims (4)
該基地局に無線回線を解して接続される移動局とを含む無線通信システムにおいて、
上記移動局に、前方アンテナと、
該前方アンテナから後方に配置された後方アンテナと、
前方アンテナで受信した信号を復調する第１の受信機と、
後方アンテナで受信した信号を復調する第２の受信機と、
該第１の受信機の出力と第２の受信機の出力とを切り替え制御する切替制御部とを具備し、
該切替制御部は、第１と第２の受信機で同一の基地局識別信号を受信したときはダイバーシティ受信を行うように制御し、
何れかの受信機が受信不能になった場合は、もう一方の受信機出力を選択し、
第１と第２の受信機で異なる基地局識別信号を受信した場合は、予め定めた一方の受信機出力を選択するように構成したことを特徴とする無線通信システム。A plurality of base stations each transmitting a different base station identification signal;
In a wireless communication system including a mobile station connected to the base station via a wireless line,
The mobile station has a front antenna,
A rear antenna disposed rearward from the front antenna;
A first receiver for demodulating a signal received by the front antenna;
A second receiver for demodulating the signal received by the rear antenna;
A switching control unit that controls switching between the output of the first receiver and the output of the second receiver;
The switching control unit controls to perform diversity reception when the same base station identification signal is received by the first and second receivers,
If one of the receivers becomes unreceivable, select the other receiver output,
A radio communication system characterized in that when the first and second receivers receive different base station identification signals, one of the predetermined receiver outputs is selected.
上記移動局の前方アンテナと後方アンテナ間の距離を、
当該無線通信システムにおける移動局の受信不能な区間長と、
移動局で上記基地局識別信号を検出するための時間を距離換算した距離とを合わせた距離以上に長く設定したことを特徴とする無線通信システム。The wireless communication system according to claim 1, wherein
The distance between the front antenna and the rear antenna of the mobile station
Section length of the mobile station incapable of receiving in the wireless communication system ,
A radio communication system, characterized in that a time for detecting the base station identification signal at a mobile station is set longer than a distance obtained by combining a distance converted to a distance .
上記複数の基地局は、それぞれ異なるＬＣＸケーブルに接続され、
該ＬＣＸケーブルを介して上記移動局と通信を行うように構成したことを特徴とする無線通信システム。The wireless communication system according to claim 1, wherein
The plurality of base stations are connected to different LCX cables,
A wireless communication system configured to communicate with the mobile station via the LCX cable.
該基地局に無線回線を介して接続され、前方にある第１のアンテナと後方にある第２のアンテナの少なくとも２つのアンテナを有する移動局とを含む無線通信システムの出力選択方法であって、An output selection method of a radio communication system including a mobile station connected to the base station via a radio line and having at least two antennas, a first antenna in front and a second antenna in the rear,
該出力選択方法は、上記前方アンテナで受信した信号を復調する第１の復調ステップと、The output selection method includes a first demodulation step of demodulating a signal received by the front antenna;
上記後方アンテナで受信した信号を復調する第２の復調ステップと、A second demodulation step for demodulating a signal received by the rear antenna;
該第１と第２のステップによって復調された信号を比較する比較ステップと、A comparing step for comparing the signals demodulated by the first and second steps;
該比較ステップによって得られた結果から各アンテナの受信信号を出力するか、またはダイバーシティ出力に切り替える切替ステップからなることを特徴とした無線通信システムの出力選択方法。An output selection method for a radio communication system, comprising a switching step of outputting a reception signal of each antenna from the result obtained in the comparison step or switching to diversity output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21049898A JP4070311B2 (en) | 1998-07-27 | 1998-07-27 | Wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21049898A JP4070311B2 (en) | 1998-07-27 | 1998-07-27 | Wireless communication system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000049683A JP2000049683A (en) | 2000-02-18 |
| JP2000049683A5 true JP2000049683A5 (en) | 2005-10-20 |
| JP4070311B2 JP4070311B2 (en) | 2008-04-02 |
Family
ID=16590365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21049898A Expired - Fee Related JP4070311B2 (en) | 1998-07-27 | 1998-07-27 | Wireless communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4070311B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008011310A (en) * | 2006-06-30 | 2008-01-17 | Hitachi Kokusai Electric Inc | Radio communication system |
| JP5553365B2 (en) * | 2012-03-05 | 2014-07-16 | 日本信号株式会社 | Wireless train control system |
| WO2014192620A1 (en) * | 2013-05-27 | 2014-12-04 | 日本電気株式会社 | Radio base station apparatus, radio communication system, radio communication method, and program thereof |
-
1998
- 1998-07-27 JP JP21049898A patent/JP4070311B2/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100194301B1 (en) | Antenna Structure and Wireless Communication Device Associated with It | |
| CA1311802C (en) | Diversity antenna communication system | |
| US7542750B2 (en) | Diversity system with identification and evaluation of antenna properties | |
| GB2315645B (en) | Diversity gain controlled cell-site transmission | |
| PT767994E (en) | ADAPTATIVE SECTORIZATION IN A COMMUNICATION SYSTEM IN SPECTROS DISPERSAO | |
| PL164583B1 (en) | Method for and system for especially separated telecomunication | |
| EP1729426A3 (en) | Mobile communication system, base station, and communication control method | |
| CA2267517A1 (en) | Cdma adaptive antenna receiving apparatus and communication system | |
| JPH0746168A (en) | Diversity receiver | |
| EP0805566A3 (en) | Radio station for transmitting and receiving digital information in a mobile communications system | |
| EP0763307A2 (en) | Diversity combining for antennas | |
| EP0961419A3 (en) | Base station apparatus and radio communication method with reception diversity | |
| CA2305871A1 (en) | Channel communication device and method for mobile communication system using transmission antenna diversity | |
| CA2412018A1 (en) | Apparatus and method using smart antenna in fdd wireless communication system | |
| EP1026834A3 (en) | Mobile communication system having mobile stations and a base station | |
| CA2195375A1 (en) | Mobile Communication Without Call Interruption During Transition Between Outdoor and Indoor Modes | |
| CA2260663A1 (en) | An architecture for multi-sector base stations | |
| CN101176275A (en) | Antenna diversity by means of if through-connection for receivers of digital radio signals | |
| JP2000049683A5 (en) | ||
| EP0921646A3 (en) | Digital radio communication system with diversity reception | |
| JPH0666722B2 (en) | Diversity reception method in mobile station | |
| MX9805136A (en) | Diversity antenna selection. | |
| JPH056811B2 (en) | ||
| JP3138934B2 (en) | Space diversity system | |
| JP4070311B2 (en) | Wireless communication system |