JPH0965422A - Radio communication equipment - Google Patents
Radio communication equipmentInfo
- Publication number
- JPH0965422A JPH0965422A JP7242359A JP24235995A JPH0965422A JP H0965422 A JPH0965422 A JP H0965422A JP 7242359 A JP7242359 A JP 7242359A JP 24235995 A JP24235995 A JP 24235995A JP H0965422 A JPH0965422 A JP H0965422A
- Authority
- JP
- Japan
- Prior art keywords
- wireless communication
- communication system
- base station
- terminal
- cell
- 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
Classifications
-
- Y02B60/50—
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、移動通信に関し、
特に大きなセルの中に高速通信が可能な小さなセルが重
複して存在する移動通信における無線通信方法に関す
る。TECHNICAL FIELD The present invention relates to mobile communications,
In particular, the present invention relates to a wireless communication method in mobile communication in which small cells capable of high-speed communication overlap in a large cell.
【0002】[0002]
【従来の技術】移動通信可能な無線局である端末と、所
要の通信品質が得られると予測される範囲即ち、セルと
呼ばれるゾーンがある地域で連続するようにそのセルを
構成する基地局を置局する無線通信方式1と、その無線
通信方式1と比べて伝送速度が高速であるがセルの大き
さが小さくそのセルが上記地域の一部を覆うように置局
を行う無線通信方式2が併存し、上りと下りで異なる無
線通信システムを用いて非対称通信を行う場合、従来は
図6に示すように、セルの大きさが小さい無線通信シス
テムに対しては信号の捕捉可能なエリアが狭い。従って
セルの大きさが大きい無線通信システムに対しては捕捉
可能なエリアでも、もう一方の無線通信システムが信号
の捕捉ができなかったため呼損となった。なお、図6
で、100は方式2の基地局、101は方式2の端末、
102は方式2のセル、110は方式1の基地局、11
1は方式1の端末、112は方式1のセルである。2. Description of the Related Art A terminal which is a wireless station capable of mobile communication and a base station which configures a cell so that a zone called a cell where a required communication quality is expected to be obtained, that is, a zone, is continuous. The wireless communication method 1 in which the station is placed and the wireless communication method 2 in which the transmission speed is higher than that of the wireless communication method 1 but the cell size is small and the cell is placed so as to cover a part of the above area When asymmetric communication is performed by using different radio communication systems for uplink and downlink, conventionally, as shown in FIG. 6, there is a signal capture area for a radio communication system with a small cell size. narrow. Therefore, even in an area where a wireless communication system having a large cell size can be captured, the other wireless communication system cannot capture a signal, resulting in a call loss. Note that FIG.
, 100 is a base station of scheme 2, 101 is a terminal of scheme 2,
102 is a cell of scheme 2; 110 is a base station of scheme 1;
Reference numeral 1 is a scheme 1 terminal, and 112 is a scheme 1 cell.
【0003】[0003]
【発明が解決しようとする課題】従来は双方向とも同じ
通信能力を持つ一つの通信システムを用いて非対称通信
を行ったため周波数帯域を有効に利用できなかった。ま
た、異なる通信システムを用いて非対称通信を行う場
合、端末は同時にそれぞれの通信システムの圏内に存在
する必要があり、どちらかのシステムの圏外の場合は呼
損になるという問題があった。Conventionally, the frequency band cannot be effectively used because asymmetric communication is performed using one communication system having the same communication capability in both directions. In addition, when asymmetric communication is performed using different communication systems, the terminals need to be present within the respective communication systems at the same time, and there is a problem that a call is lost if either of the systems is out of the service area.
【0004】本発明の目的は、大きなセルと小さなセル
が重複して存在する場合に、移動局が小さなセルの圏外
にいる場合でも小さなセルによる高速通信が可能な無線
通信方法を提供することにある。An object of the present invention is to provide a radio communication method capable of performing high-speed communication by a small cell even when a mobile station is out of the area of a small cell when a large cell and a small cell overlap. is there.
【0005】[0005]
【課題を解決するための手段】本発明は、信号の捕捉が
できないセルが存在する無線通信方式2の基地局2の送
信電力を大きくして下りのセルだけを大きくしたバーチ
ャルセルとし、下り拡大セルであるバーチャルセル内の
端末2がセル内に移動するまで通信チャネルを確保す
る。無線通信方式2の基地局の送信電力を大きくするた
めの制御に、無線通信方式1を用いる。即ち、無線通信
方式2が発呼し、圏外であれば、無線通信方式1の端末
1から基地局1へチャネル使用許可の要求信号を送信
し、無線通信方式1の基地局1は無線通信方式2の送信
電力を一時的に増大するように要求する。無線通信方式
2の基地局2は送信電力を大きくし一時的にセル半径が
大きくなったように下り拡大セルであるバーチャルセル
を形成し、端末2が基地局2からの信号が捕捉可能であ
れば、そのことを無線通信方式1を用いて知らせる。捕
捉不可であれば、呼損となる。端末2が基地局2からの
信号が捕捉可能であれば、送信電力増大によるバーチャ
ルセル内に端末2が存在することになり、基地局2から
端末2への下り方向通信が可能となる。上り方向の通信
は、無線通信方式1を用いて行い、上りと下りの異速度
通信を実現する。According to the present invention, the transmission power of the base station 2 of the wireless communication system 2 in which there is a cell in which a signal cannot be captured is increased to make a virtual cell in which only the downlink cell is enlarged, and the downlink is expanded. The communication channel is secured until the terminal 2 in the virtual cell, which is the cell, moves into the cell. The wireless communication method 1 is used for the control for increasing the transmission power of the base station of the wireless communication method 2. That is, if the wireless communication system 2 makes a call and is out of the service area, the terminal 1 of the wireless communication system 1 transmits a channel use permission request signal to the base station 1 and the base station 1 of the wireless communication system 1 transmits the wireless communication system 1. 2 request to temporarily increase the transmission power. The base station 2 of the wireless communication system 2 forms a virtual cell that is a downlink expansion cell by increasing the transmission power and temporarily increasing the cell radius, and the terminal 2 should be able to capture the signal from the base station 2. For example, the fact is notified using the wireless communication method 1. If it cannot be captured, a call is lost. If the terminal 2 can capture the signal from the base station 2, the terminal 2 exists in the virtual cell due to the increase of the transmission power, and the downlink communication from the base station 2 to the terminal 2 becomes possible. The communication in the upstream direction is performed using the wireless communication method 1, and the different speed communication between the upstream and the downstream is realized.
【0006】非対称通信を行っている際、無線通信方式
2の端末がセル内に移動した場合、双方向で無線通信方
式2を用いることにより、双方向高速通信を実現する。When a terminal of wireless communication system 2 moves into a cell during asymmetric communication, bidirectional high speed communication is realized by using wireless communication system 2 bidirectionally.
【0007】本発明では、異なる無線通信方式1を用い
て無線通信方式2の基地局の送信電力を大きくすること
により、無線通信方式2の基地局2から端末2への下り
方向通信が可能となり、無線通信方式1を同時に用いる
ことにより非対称通信が実現できる。また、無線通信方
式2の端末がセル内に移動した時は、無線通信方式1を
用いた比較的速度の遅い上り通信から、無線通信方式1
へ切り替えて、双方向高速通信を実現することができ
る。このように、双方向の信号の捕捉ができない場合で
も、通信可能な通信システムを片方向使用し通信開始で
きるので、呼損を少なくすることができる。In the present invention, by increasing the transmission power of the base station of the wireless communication system 2 by using the different wireless communication system 1, the downlink communication from the base station 2 of the wireless communication system 2 to the terminal 2 becomes possible. Asymmetric communication can be realized by simultaneously using the wireless communication method 1. When the terminal of the wireless communication system 2 moves into the cell, the relatively slow upstream communication using the wireless communication system 1 is changed to the wireless communication system 1
By switching to, it is possible to realize bidirectional high-speed communication. In this way, even when bidirectional signals cannot be captured, communication can be started in one direction using a communicable communication system, and thus call loss can be reduced.
【0008】[0008]
【発明の実施の形態】図1は本発明の概要を説明する図
である。端末101と基地局100は第2の無線通信方
式(無線通信方式2)に対応する端末及び基地局であ
り、端末111と基地局110は第1の無線通信方式
(無線通信方式1)に対応する端末及び基地局である。
また、大セル112は無線通信方式1が構成するセルで
あり、小セル102は無線通信方式2が構成するセルで
ある。小セル102は大セル112の中にとびとびに存
在する。無線通信方式2の端末2(101)は無線通信
方式1の端末1(111)へ制御情報の通信機能を持
つ。または、無線通信方式2の端末2(101)は無線
通信方式1の基地局1(110)へ送信できる機能を持
つ。さらに無線通信方式1の基地局1(110)と無線
通信方式2の基地局2(100)は、無線通信方式2の
使用許可要求、端末2(101)の位置登録情報等の制
御情報の通信ができる。無線通信方式1の送信機能を持
つ無線通信方式2の端末2(101)、または無線通信
方式1の端末1(111)を通じて無線通信方式2の端
末2(101)からの発呼要求に応じて、無線通信方式
1の基地局1(110)は無線通信方式2の基地局2
(100)へ発呼信号を伝送することができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram for explaining the outline of the present invention. The terminal 101 and the base station 100 are terminals and base stations compatible with the second wireless communication system (wireless communication system 2), and the terminal 111 and the base station 110 are compatible with the first wireless communication system (wireless communication system 1). Terminal and base station.
The large cell 112 is a cell configured by the wireless communication system 1, and the small cell 102 is a cell configured by the wireless communication system 2. The small cells 102 are scattered in the large cells 112. The terminal 2 (101) of the wireless communication method 2 has a communication function of control information to the terminal 1 (111) of the wireless communication method 1. Alternatively, the terminal 2 (101) of the wireless communication system 2 has a function of transmitting to the base station 1 (110) of the wireless communication system 1. Further, the base station 1 (110) of the wireless communication system 1 and the base station 2 (100) of the wireless communication system 2 communicate the use permission request of the wireless communication system 2 and the control information such as the position registration information of the terminal 2 (101). You can In response to a call request from the terminal 2 (101) of the wireless communication method 2 having the transmission function of the wireless communication method 1 or the terminal 2 (101) of the wireless communication method 2 through the terminal 1 (111) of the wireless communication method 1. The base station 1 (110) of the wireless communication system 1 is the base station 2 of the wireless communication system 2.
A call signal can be transmitted to (100).
【0009】無線通信方式1の基地局1(110)は、
その構成するセル内にある無線通信方式2の基地局2
(100)のエリアマップを有し、無線通信方式2に関
する制御情報を伝送した端末の位置から最も近い無線通
信方式2の基地局2(100)を知ることができる。The base station 1 (110) of the wireless communication system 1 is
Base station 2 of wireless communication system 2 in the cell that constitutes the
With the area map of (100), it is possible to know the base station 2 (100) of the wireless communication method 2 closest to the position of the terminal that has transmitted the control information on the wireless communication method 2.
【0010】図2は本発明の実施例を示すフローチャー
トである。無線通信方式2の端末2(101)から発呼
信号を基地局2(100)へ送信する時、無線通信方式
2の圏内であれば通信開始する(210)。圏外の場
合、無線通信方式1の端末1(111)から基地局1へ
(110)、無線通信方式2の端末2(101)が圏外
から発呼信号を送信していることを知らせる無線通信方
式2の使用許可要求信号を送信する(202)。無線通
信方式2の基地局2(100)は基地局1(110)を
介し使用許可要求を受信し(203)、基地局2(10
0)は一時的に送信電力を増大する(205)。FIG. 2 is a flow chart showing an embodiment of the present invention. When a calling signal is transmitted from the terminal 2 (101) of the wireless communication system 2 to the base station 2 (100), communication is started within the range of the wireless communication system 2 (210). When the terminal is out of the service area, the wireless communication method that notifies from the terminal 1 (111) of the wireless communication method 1 to the base station 1 (110) that the terminal 2 (101) of the wireless communication method 2 is transmitting the calling signal from the outside area A use permission request signal of No. 2 is transmitted (202). The base station 2 (100) of the wireless communication system 2 receives the use permission request via the base station 1 (110) (203), and the base station 2 (10)
0) temporarily increases the transmission power (205).
【0011】基地局2(100)の送信電力を増大して
も基地局2(100)からの信号が端末で捕捉できなけ
れば、呼損となる(209)。基地局2(100)の送
信電力の増大により基地局2(100)からの信号が受
信可能となれば、無線通信方式2の端末2は(101)
は受信のみを行う(207)。同時に無線通信方式1を
上りの通信チャネルとして用いて通信を開始する(20
8)。通信が終了すれば無線通信方式2の基地局2(1
00)の送信電力の大きさは元の送信電力に戻す。If the signal from the base station 2 (100) cannot be captured by the terminal even if the transmission power of the base station 2 (100) is increased, a call is lost (209). If the signal from the base station 2 (100) becomes receivable due to the increase in the transmission power of the base station 2 (100), the terminal 2 of the wireless communication system 2 (101)
Receives only (207). At the same time, communication is started using the wireless communication method 1 as an upstream communication channel (20
8). When the communication is completed, the base station 2 (1
The magnitude of the transmission power of 00) is returned to the original transmission power.
【0012】図3に示すように、無線通信方式2の端末
2(101)がセル内に移動し(309)、端末2(1
01)からの送信信号を基地局2(100)が捕捉する
ことができれば、双方向を無線通信方式2を用いて通信
を行う(311)。この時、無線通信方式2の基地局2
(100)の送信電力の大きさは元の送信電力に戻す。As shown in FIG. 3, the terminal 2 (101) of the wireless communication system 2 moves into the cell (309) and the terminal 2 (1)
If the transmission signal from 01) can be captured by the base station 2 (100), bidirectional communication is performed using the wireless communication method 2 (311). At this time, the base station 2 of the wireless communication system 2
The magnitude of the transmission power of (100) is returned to the original transmission power.
【0013】図4は本発明の実施例を示すフローチャー
トである。無線通信方式2の基地局2(100)から着
呼信号を端末2(101)へ送信する時、無線通信方式
2の圏内であれば通信開始する(409)。圏外の場
合、無線通信方式1の基地局1(110)から端末1
(111)へ、無線通信方式2の基地局2(100)が
圏外の端末2(101)へ着呼信号を送信していること
を知らせる。無線通信方式1を通じて着呼信号があるこ
とを知った端末2(101)は、無線通信方式1を通じ
て無線通信方式2の使用許可要求信号を送信する。無線
通信方式2の基地局2(100)は基地局1(110)
を介し使用許可要求を受信し、基地局2(100)は一
時的に送信電力を増大する(404)。FIG. 4 is a flow chart showing an embodiment of the present invention. When an incoming signal is transmitted from the base station 2 (100) of the wireless communication system 2 to the terminal 2 (101), communication is started within the range of the wireless communication system 2 (409). When the mobile station is out of the service area, the base station 1 (110) of the wireless communication system 1 to the terminal 1
It informs (111) that the base station 2 (100) of the wireless communication system 2 is transmitting an incoming call signal to the terminal 2 (101) out of range. The terminal 2 (101), which has learned that there is an incoming call signal through the wireless communication system 1, transmits a use permission request signal for the wireless communication system 2 through the wireless communication system 1. The base station 2 (100) of the wireless communication system 2 is the base station 1 (110)
The base station 2 (100) temporarily increases the transmission power (404) by receiving the usage permission request via the.
【0014】基地局2(100)の送信電力を増大して
も基地局2(100)からの信号が端末2(101)で
捕捉できなければ、呼損となる(406)。基地局2
(100)の送信電力の増大により基地局2(100)
からの信号が受信可能となれば、無線通信方式2の端末
2(101)は受信のみを行う(207)。同時に無線
通信方式1を上りの通信チャネルとして用いて通信を開
始する。通信が終了すれば無線通信方式2の基地局2の
送信電力の大きさは元の送信電力に戻す。If the signal from the base station 2 (100) cannot be captured by the terminal 2 (101) even if the transmission power of the base station 2 (100) is increased, a call is lost (406). Base station 2
Due to the increase of the transmission power of (100), the base station 2 (100)
If the signal from (2) can be received, the terminal 2 (101) of the wireless communication system 2 only receives (207). At the same time, the wireless communication method 1 is used as an upstream communication channel to start communication. When the communication is completed, the magnitude of the transmission power of the base station 2 of the wireless communication system 2 is returned to the original transmission power.
【0015】図5に示すように、無線通信方式2の端末
2(101)がセル内に移動し、端末(101)からの
送信信号を基地局2(100)が捕捉することができれ
ば、双方向を無線通信方式2を用いて通信を行う。この
時、無線通信方式2の基地局2(100)の送信電力の
大きさは元の送信電力に戻す。As shown in FIG. 5, if the terminal 2 (101) of the wireless communication system 2 moves into the cell and the transmission signal from the terminal (101) can be captured by the base station 2 (100), both Communication is performed using the wireless communication method 2. At this time, the transmission power of the base station 2 (100) of the wireless communication system 2 is returned to the original transmission power.
【0016】[0016]
【発明の効果】本発明は移動通信において異なる無線通
信方式が同時に存在する場合、それぞれの異なる通信速
度を持つ通信システムを同時に用いて上りと下りの伝送
速度が異なる非対称通信を行う。この場合、セルの大き
さが大きい無線通信システムを用いてセルの大きさが小
さい無線通信システムの基地局からの送信電力を増大
し、セルの大きさが小さい無線通信システムを用いて下
り方向の高速通信を保証する。一方、セルの大きさが大
きい無線通信システムを用いて上り方向の比較的速度の
遅い通信を保証する。このように非対称通信において、
セルの大きさが大きい無線通信システムの圏内であれ
ば、セルの大きさが小さい無線通信システムの圏外の端
末に対して通信を可能とする。According to the present invention, when different wireless communication systems exist in mobile communication at the same time, asymmetrical communication having different upstream and downstream transmission speeds is performed by simultaneously using communication systems having different communication speeds. In this case, the transmission power from the base station of the wireless communication system with the small cell size is increased by using the wireless communication system with the large cell size, and the downlink power is increased by using the wireless communication system with the small cell size. Guarantee high-speed communication. On the other hand, a relatively slow uplink communication is guaranteed by using a wireless communication system having a large cell size. Thus, in asymmetric communication,
Within a wireless communication system with a large cell size, communication is possible with terminals outside the wireless communication system with a small cell size.
【0017】従来の方式では、無線通信方式2の圏外で
は通信を行うことができなかった。本発明によると、無
線通信方式2の信号の捕捉できるエリア面積に対する送
信電力を上げた時のバーチャルエリア(下りの場合)が
大きくなり、呼損を少なくすることができる。In the conventional system, communication could not be performed outside the range of the wireless communication system 2. According to the present invention, the virtual area (in the case of downlink) when the transmission power is increased with respect to the area area where the signal of the wireless communication system 2 can be captured is increased, and the call loss can be reduced.
【図1】本発明の概要を説明する図である。FIG. 1 is a diagram illustrating an outline of the present invention.
【図2】端末から発呼する場合のフローチャート(1)
である。FIG. 2 is a flowchart for making a call from a terminal (1).
It is.
【図3】端末から発呼する場合のフローチャート(2)
である。FIG. 3 is a flowchart for making a call from a terminal (2)
It is.
【図4】端末へ着呼がある場合のフローチャート(1)
である。FIG. 4 is a flowchart (1) when there is an incoming call to the terminal.
It is.
【図5】端末へ着呼がある場合のフローチャート(2)
である。FIG. 5 is a flowchart (2) when there is an incoming call to the terminal.
It is.
【図6】従来のシステム概念を説明する図である。FIG. 6 is a diagram illustrating a conventional system concept.
100 無線通信方式2の基地局2 101 無線通信方式2の端末2 102 無線通信方式2のセル 103 バーチャルセル 110 無線通信方式1の基地局1 111 無線通信方式1の端末1 112 無線通信方式1のセル 100 base station 2 of wireless communication system 2 101 terminal 2 of wireless communication system 2 102 cell of wireless communication system 103 virtual cell 110 base station 1 of wireless communication system 1 111 terminal 1 of wireless communication system 1 112 of wireless communication system 1 cell
Claims (3)
線通信方式と、電波到達範囲が小ゾーンであり通信方式
が異なる第2の無線通信方式とが、前記大ゾーンの中に
前記小ゾーンが少なくとも一つ包含されるように混在す
る無線通信方法において、 高速な伝送を希望する端末が通信を行う際に、第2の無
線通信方式の基地局において第2の無線通信方式の端末
からの信号を捕捉することを試み、捕捉できれば第2の
無線通信方式を用いた通信を開始し、 捕捉できなければ、第1の無線通信方式を用いて、第2
の無線通信方式のチャネル使用許可の要求信号を方式1
の端末から方式1の基地局へ送信し、方式1の基地局は
第2の無線通信方式の基地局へそのことを知らせ、第2
の無線通信方式の端末が第2の無線通信方式の基地局か
らの信号を捕捉することができるように、第2の無線通
信方式の基地局は送信電力をあげ、 方式2の端末が方式2の基地局からの信号が捕捉できれ
ば第2の無線通信方式の基地局から方式2の端末への下
り方向の通信チャネルと第1の無線通信方式の端末から
方式1の基地局への上り方向の通信チャネルを用いて通
信を行うことを特徴とする無線通信方法。1. A first wireless communication system having a large radio wave reachable range and a second wireless communication system having a small radio wave reachable range and a different communication system are provided in the small zone within the small zone. In a mixed wireless communication method in which at least one zone is included, when a terminal desiring high-speed transmission performs communication, a base station of the second wireless communication method causes a terminal of the second wireless communication method to If it can be captured, it starts communication using the second wireless communication system, and if it is not captured, it uses the first wireless communication system to
1 of the request signal of the channel use permission of the wireless communication method of
From the terminal to the base station of scheme 1, the base station of scheme 1 notifies the base station of the second wireless communication scheme of that, and
The base station of the second wireless communication system raises the transmission power so that the terminal of the second wireless communication system can capture the signal from the base station of the second wireless communication system. If the signal from the base station of the second wireless communication system can be captured, the communication channel in the downward direction from the base station of the second wireless communication system to the terminal of the second wireless communication system and the uplink direction from the terminal of the first wireless communication system to the base station of the first system A wireless communication method, characterized in that communication is performed using a communication channel.
る場合、第2の無線通信方式の端末において第2の無線
通信方式の基地局からの信号を捕捉できれば第2の無線
通信方式を用いた通信を開始し、 捕捉できなければ、第1の無線通信方式を用いて、方式
1の基地局から方式2の無線通信方式の着呼があること
を方式1の端末へ知らせ、また、第2の無線通信方式の
端末が第2の無線通信方式の基地局からの信号を捕捉す
ることができるように、第2の無線通信方式の基地局は
送信電力をあげ、方式2の端末が方式2の基地局からの
信号が捕捉できれば第2の無線通信方式の基地局から方
式2の端末への下り方向の通信チャネルと第1の無線通
信方式の端末から方式1の基地局への上り方向の通信チ
ャネルを用いて通信を行うことを特徴とする請求項1記
載の無線通信方法。2. When there is an incoming call to the terminal of the second wireless communication system, if the terminal of the second wireless communication system can capture the signal from the base station of the second wireless communication system, the second wireless communication system. If communication cannot be captured by using the first wireless communication method, the first wireless communication method is used to notify the terminal of method 1 of the arrival of the wireless communication method of method 2 from the base station of method 1, and , The base station of the second wireless communication system increases the transmission power so that the terminal of the second wireless communication system can capture the signal from the base station of the second wireless communication system, If the signal from the base station of scheme 2 can be captured, the downlink communication channel from the base station of the second radio communication scheme to the terminal of scheme 2 and from the terminal of the first radio communication scheme to the base station of scheme 1 Characterized by performing communication using an upstream communication channel The wireless communication method of claim 1, wherein that.
の圏内になった時には上りと下りの両方向を第2の無線
通信方式の通信チャネルを用いて通信を行うことを特徴
とする請求項1又は2記載の無線通信方法。3. When the terminal of the method 2 is within the range of the second wireless communication method, it communicates in both the up and down directions using the communication channel of the second wireless communication method. The wireless communication method according to Item 1 or 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24235995A JP3189160B2 (en) | 1995-08-29 | 1995-08-29 | Wireless communication method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24235995A JP3189160B2 (en) | 1995-08-29 | 1995-08-29 | Wireless communication method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0965422A true JPH0965422A (en) | 1997-03-07 |
JP3189160B2 JP3189160B2 (en) | 2001-07-16 |
Family
ID=17088019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24235995A Expired - Fee Related JP3189160B2 (en) | 1995-08-29 | 1995-08-29 | Wireless communication method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3189160B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000023225A (en) * | 1998-06-30 | 2000-01-21 | Kyocera Corp | Portable telephone system |
WO2007066577A1 (en) * | 2005-12-08 | 2007-06-14 | Sharp Kabushiki Kaisha | Radio communication system, and radio communication method |
US7305247B2 (en) | 2000-09-29 | 2007-12-04 | Ntt Docomo, Inc. | Cell control method and cell system |
JP2008294849A (en) * | 2007-05-25 | 2008-12-04 | Toshiba Corp | Mobile communication repeater device, slave station and communication control method |
US8787955B2 (en) | 2008-05-02 | 2014-07-22 | Ntt Docomo, Inc. | Network device and radio base station |
-
1995
- 1995-08-29 JP JP24235995A patent/JP3189160B2/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000023225A (en) * | 1998-06-30 | 2000-01-21 | Kyocera Corp | Portable telephone system |
US7305247B2 (en) | 2000-09-29 | 2007-12-04 | Ntt Docomo, Inc. | Cell control method and cell system |
WO2007066577A1 (en) * | 2005-12-08 | 2007-06-14 | Sharp Kabushiki Kaisha | Radio communication system, and radio communication method |
JPWO2007066577A1 (en) * | 2005-12-08 | 2009-05-21 | シャープ株式会社 | Wireless communication system and wireless communication method |
JP4657305B2 (en) * | 2005-12-08 | 2011-03-23 | シャープ株式会社 | Communication system and communication terminal |
JP2008294849A (en) * | 2007-05-25 | 2008-12-04 | Toshiba Corp | Mobile communication repeater device, slave station and communication control method |
US8787955B2 (en) | 2008-05-02 | 2014-07-22 | Ntt Docomo, Inc. | Network device and radio base station |
Also Published As
Publication number | Publication date |
---|---|
JP3189160B2 (en) | 2001-07-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5943326A (en) | Synchronizing a telecommunication connection in a mobile communication system | |
KR20000049246A (en) | Dual mode symmetric/asymmetric communication control system | |
JPH11502087A (en) | Synchronization method of telecommunications connection in mobile communication system | |
JPH11501169A (en) | How to Pick Up Mobile Stations Directly From Mode Channel | |
US5706284A (en) | Method for establishing communication path between mobile stations | |
JPS62101135A (en) | Composite radio zone mobile communication system | |
JPH0965422A (en) | Radio communication equipment | |
JPH0730949A (en) | Talking state cannel changeover method and system in mobile communications | |
JPH1118130A (en) | Mobile communication system and mobile station and radio base station for mobile communication system | |
JPH03196722A (en) | Mobile communication system | |
JP3197471B2 (en) | Base station call connection control method in mobile communication system | |
JPH02193425A (en) | Mobile communication system | |
JP3076320B1 (en) | Handover control method | |
JPH066294A (en) | Hand-off control system between systems in mobile body communication system | |
JPS59154827A (en) | Radio relaying method | |
JP3552182B2 (en) | Mobile communication method | |
JPH07274236A (en) | Mobile communication equipment | |
KR100879679B1 (en) | Service Redirection Method for Enhancing Communication Quality on the Sea | |
JPH1155717A (en) | Mobile communication equipment | |
WO1995029562A2 (en) | Method for facilitating call establishment in a cellular network, and a base station | |
KR100540945B1 (en) | Base station coverage limiting method in mobile telecommunication system | |
JPH1051374A (en) | Radio repeater and radio channel relay system therefor | |
JPS5823776B2 (en) | Wireless communication method | |
JPH0970064A (en) | Radio communication method | |
JPH11122210A (en) | Digital radio communication equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010410 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090518 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090518 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100518 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100518 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110518 Year of fee payment: 10 |
|
LAPS | Cancellation because of no payment of annual fees |