JPH066294A - Hand-off control system between systems in mobile body communication system - Google Patents
Hand-off control system between systems in mobile body communication systemInfo
- Publication number
- JPH066294A JPH066294A JP4066629A JP6662992A JPH066294A JP H066294 A JPH066294 A JP H066294A JP 4066629 A JP4066629 A JP 4066629A JP 6662992 A JP6662992 A JP 6662992A JP H066294 A JPH066294 A JP H066294A
- Authority
- JP
- Japan
- Prior art keywords
- handoff
- base station
- mobile
- channel
- mobile body
- 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.)
- Withdrawn
Links
- 238000004891 communication Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000010295 mobile communication Methods 0.000 claims description 37
- 238000012545 processing Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000001413 cellular effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/06—Reselecting a communication resource in the serving access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は移動体通信システムにお
けるシステム間ハンドオフ制御方式に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intersystem handoff control system in a mobile communication system.
【0002】[0002]
【従来の技術】セルラー方式移動体無線通信システムの
仕様書であるTACS(TOTALACCESS CO
MMUNICATIONS SYSTEM)Issue
−4方式の従来のセルラー方式移動体電話システムで
は、移動体電話交換局及び無線基地局は、TACS I
ssue−4方式の動作の可能な移動体電話端末に対し
てはTACS Issue−4方式の無線電話サービス
を提供し、またTACSIssue−3方式の動作しか
できない移動体電話端末に対してはTACSIssue
−3方式の無線電話サービスを提供することを行ってい
る。2. Description of the Related Art TACS (TOTALACCESS CO.), Which is a specification of a cellular mobile radio communication system,
MMUNICATIONS SYSTEM) Issue
In the conventional cellular mobile telephone system of -4 system, the mobile telephone switching center and the radio base station are TACS I
A TACS Issue-4 system wireless telephone service is provided to mobile phone terminals that can operate in the suse-4 system, and a TACSIsuuse service is provided to mobile phone terminals that can only operate in the TACSIissue-3 system.
-3 system wireless telephone service is provided.
【0003】一方、TACS Issue−4方式の規
定に準じた移動体電話端末は、下り制御チャネル上に放
送されているシステム動作情報TACS REL LE
V(TACS RELEASE LEVEL)がTAC
S Issue−4方式のシステムであることを示して
いればTACS Issue−4規定に準じた通話サー
ビス動作を行い、システム動作情報TACS REL
LEVがTACS Issue−3方式のシステムであ
ることを示していれば、TACS Issue−3規定
に準じた通話サービス動作を行う。この移動体電話端末
の通話サービス動作は下り制御チャネル上に放送されて
いるシステム動作情報TACS RELLEVによって
のみ決定され、通話チャネルに通話サービスを開始した
後に移動体電話端末の通話サービス動作を切り替える手
段は無い。On the other hand, a mobile telephone terminal conforming to the TACS Issue-4 system regulation has system operation information TACS REL LE broadcast on a downlink control channel.
V (TACS RELEASE LEVEL) is TAC
If it indicates that the system is the S Issue-4 system, the call service operation according to the TACS Issue-4 standard is performed, and the system operation information TACS REL
If LEV indicates that the system is a TACS Issue-3 system, the call service operation according to the TACS Issue-3 standard is performed. The call service operation of this mobile telephone terminal is determined only by the system operation information TACS RELLEV broadcast on the downlink control channel, and means for switching the call service operation of the mobile telephone terminal after starting the call service on the call channel is There is no.
【0004】[0004]
【発明が解決しようとする課題】この従来の技術では、
TACS Issue−3方式の移動体通信システムと
TACS Issue−4方式の移動体通信システム間
でのシステム間ハンドオフを実施しようとしたとき、ハ
ンドオフ先の移動体通信システムがTACS Issu
e−3方式とTACS Issue−4方式の2種類の
通話サービス提供が可能なTACS Issue−4方
式の移動体通信システムであればシステム間ハンドオフ
が実現できるが、ハンドオフ先の移動体通信システムが
TACSIssue−3方式の通話サービスしか提供で
きないTACS Issue−3方式の移動体通信シス
テムであり且つハンドオフ元の移動体通信システムがT
ACS Issue−4方式のシステムで移動体電話端
末にTACS Issue−4方式の通話サービスの提
供を行っている場合にはシステム間ハンドオフを実行す
ることはできないという問題点があった。SUMMARY OF THE INVENTION In this conventional technique,
When an inter-system handoff is attempted between a TACS Issue-3 type mobile communication system and a TACS Issue-4 type mobile communication system, the handoff destination mobile communication system determines that the TACS Issue
Inter-system handoff can be realized by a TACS Issue-4 system mobile communication system capable of providing two types of call services, e-3 system and TACS Issue-4 system, but the mobile communication system of the handoff destination is TACSIissue. TACS Issue-3 system mobile communication system capable of providing only 3 system call service, and the mobile communication system of the handoff source is T
There is a problem that inter-system handoff cannot be executed when the TACS Issue-4 system call service is provided to the mobile telephone terminal in the ACS Issue-4 system.
【0005】[0005]
【課題を解決するための手段】本発明の移動体通信シス
テムにおけるシステム間ハンドオフ制御方式は、無線基
地局から移動体電話端末へ制御信号を送信するための下
り制御チャネルと、前記移動体電話端末から前記無線基
地局へ制御信号を送信するための上り制御チャネルと、
通話サービスを提供する通話チャネルとを有する前記無
線基地局と移動体電話交換局とから構成され、TACS
Issue−4仕様書に規定されている移動体通信サ
ービスを提供し且つ隣接する他の移動体通信システムと
の間での移動体電話端末ハンドオフ機能を有する移動体
通信システムにおけるシステム間ハンドオフ制御方式で
あって、前記移動体電話交換局はシステム間ハンドオフ
の対象となる前記隣接する他の移動体通信システムのシ
ステム動作がTACSIssue−3仕様書の規定に準
じたものかTACS Issue−4仕様書の規定に準
じたものかというシステム動作情報を保有し、制御下に
ある前記無線基地局の前記通話チャネルを介して通話サ
ービスの提供を受けている前記移動体電話端末をハンド
オフさせる際にこの無線基地局の通話チャネルに対して
ハンドオフ先のシステム動作情報を通話チャネル移行指
示信号に含めて通知し、前記無線基地局はハンドオフ先
の移動体通信システムのシステム動作情報が含まれてい
る前記通話チャネル移行指示信号を受信してハンドオフ
先のシステム動作情報を既存のハンドオフメッセージに
追加編集し、この編集したハンドオフメッセージを下り
通話チャネルを介して前記移動体電話端末に対して送信
し、前記移動体電話端末は前記下り通話チャネル上で受
信した前記ハンドオフメッセージ内に含まれているハン
ドオフ先の前記システム動作情報を解析して前記ハンド
オフ先のシステム動作情報が示すシステム動作仕様にハ
ンドオフ後の自身の通話サービス処理を切り替えること
を特徴とする。An inter-system handoff control system in a mobile communication system according to the present invention comprises a downlink control channel for transmitting a control signal from a radio base station to a mobile telephone terminal, and the mobile telephone terminal. From the uplink control channel for transmitting a control signal from the wireless base station,
The TACS comprises a radio base station having a call channel for providing a call service and a mobile telephone switching center.
An inter-system handoff control method in a mobile communication system that provides a mobile communication service defined in Issue-4 specifications and has a mobile telephone terminal handoff function with another adjacent mobile communication system. If the system operation of the other mobile communication system adjacent to the mobile telephone switching center subject to the inter-system handoff complies with the TACSI Issue-3 specifications, the TACS Issue-4 specifications. This wireless base station is used when handing off the mobile telephone terminal which holds the system operation information whether it conforms to the above, and is provided with the call service through the call channel of the wireless base station under control. The system operation information of the handoff destination is included in the call channel transfer instruction signal for The radio base station receives the call channel transfer instruction signal including the system operation information of the mobile communication system of the handoff destination, adds and edits the system operation information of the handoff destination to an existing handoff message, and edits this. The handoff message transmitted to the mobile telephone terminal via the downlink call channel, and the mobile telephone terminal includes the system operation of the handoff destination included in the handoff message received on the downlink call channel. It is characterized by analyzing the information and switching the own call service processing after the handoff to the system operation specification indicated by the system operation information of the handoff destination.
【0006】[0006]
【実施例】次に、本発明について図面を参照して説明す
る。図1は本発明の一実施例を示す移動体通信システム
のシステムブロック図、図2は図1における無線基地局
の基本構成を示すブロック図、図3(a)は図1におけ
るハンドオフメッセージのフォーマットの一例を示す
図,(b)は同図(a)におけるハンドオフ先の移動体
通信システムのシステム動作情報を示す図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. 1 is a system block diagram of a mobile communication system showing an embodiment of the present invention, FIG. 2 is a block diagram showing a basic configuration of a radio base station in FIG. 1, and FIG. 3A is a format of a handoff message in FIG. FIG. 1B is a diagram showing an example of the system operation information of the mobile communication system of the handoff destination in FIG.
【0007】図1に示すように、移動体電話交換局1は
複数の無線基地局101,〜10nが信号線及び通話線
1001,〜100nを介して接続され、通信サービス
エリア10を持ち、TACS Issue−4仕様書の
規定に準じた移動体通信サービスを提供している。ま
た、移動体電話交換局2は複数の無線基地局201,〜
20nが信号線及び通話線2001,〜200nを介し
て接続され、通信サービスエリア20を持ち、TACS
Issue−3仕様書の規定に準じた移動体通信サー
ビスを提供している。そして、移動体電話交換局1と2
は信号線及び通話線12により相互に接続されている。As shown in FIG. 1, a mobile telephone exchange 1 has a plurality of radio base stations 101, 10n connected via signal lines and communication lines 1001, 100n, a communication service area 10, and TACS. It provides mobile communication services according to the rules of the Issue-4 specifications. In addition, the mobile telephone switching center 2 includes a plurality of radio base stations 201, ...
20n are connected via signal lines and call lines 2001 to 200n, have a communication service area 20,
It provides mobile communication services according to the rules of the Issue-3 specifications. And mobile telephone exchanges 1 and 2
Are mutually connected by a signal line and a communication line 12.
【0008】無線基地局101は図2に示すように主制
御装置1011,下り制御チャネル送信装置1012,
上り制御チャネル受信装置1013,通話チャネル制御
装置1014を備えている。ここでは、下り制御チャネ
ル送信装置1012,上り制御チャネル受信装置101
3,通話チャネル制御装置1014を1装置ずつ図示し
ているが、無線基地局の規模により複数装置が設置され
ることもある。移動体電話交換局1は通話線及び信号線
1001により無線基地局101に接続される。下り制
御チャネル送信装置1012,上り制御チャネル受信装
置1013,通話チャネル制御装置1014は信号線1
010により主制御装置1011にマルチ接続されてい
る。また、下り制御チャネル送信装置1012,上り制
御チャネル受信装置1013,通話チャネル制御装置1
014にはアンテナ1015が接続される。The radio base station 101, as shown in FIG. 2, has a main controller 1011 and a downlink control channel transmitter 1012.
An uplink control channel receiver 1013 and a speech channel controller 1014 are provided. Here, the downlink control channel transmitter 1012 and the uplink control channel receiver 101
3, the communication channel control device 1014 is illustrated one by one, but a plurality of devices may be installed depending on the scale of the radio base station. The mobile telephone switching center 1 is connected to the wireless base station 101 by a call line and a signal line 1001. The downlink control channel transmitter 1012, the uplink control channel receiver 1013, and the speech channel controller 1014 are the signal line 1
010 is multi-connected to the main controller 1011. Further, the downlink control channel transmitter 1012, the uplink control channel receiver 1013, and the speech channel controller 1
An antenna 1015 is connected to 014.
【0009】次に、本実施例におけるシステム間ハンド
オフ制御動作について説明する。図1において、移動体
電話交換局1の通信サービスエリア10内に位置し、無
線基地局101の有している通話チャネルを介してTA
CS Issue−4方式の通話サービスを受けている
移動体電話端末3が移動体電話交換局2の通信サービス
エリア20方向に移動していく過程において、まず移動
体電話交換局1が移動体電話端末3を移動体電話交換局
2に接続される無線基地局201の保有する通話チャネ
ルにハンドオフさせると判断する。移動体電話交換局1
は保有している移動体電話交換局2のシステム動作方式
(本例の場合TACS Issue−3方式)を無線基
地局101に対して、ハンドオフのための通話チャネル
移行指示信号を送信する際に、同信号中に含めて信号線
1001を介して送信する。図2において通話チャネル
移行指示信号は無線基地局内の主制御装置1011で受
信され、信号線1010を介して現在移動体電話端末3
に通話サービスを提供している通話チャネル制御装置1
014に引き渡される。通話チャネル制御装置1014
は図3に示すハンドオフ先の移動体通信システムのシス
テム動作情報を含んだハンドオフメッセージを編集す
る。図3はTACS Issue−4仕様書にて規定さ
れているハンドオフメッセージに本発明によるハンドオ
フ先の移動体通信システムのシステム動作情報を追加し
たメッセージフォーマットである。本実施例ではこの追
加した情報は第13,14ビットの2ビットであり(図
3(a))、ハンドオフ先の移動体通信システムのシス
テム動作方式がTACS Issue−3方式であれば
“00”を設定し、ハンドオフ先の移動体通信システム
のシステム動作方式がTACS Issue−4方式で
あれば“01”を設定することとする(図3(b))。
本実施例では、隣接する移動体電話交換局2のシステム
動作方式はTACS Issue−3方式であるので、
“00”が通話チャネル制御装置1014によって設定
され、下り通話チャネルを介して移動体電話端末3に送
信される。Next, the inter-system handoff control operation in this embodiment will be described. In FIG. 1, the TA is located in the communication service area 10 of the mobile telephone switching center 1 and is transmitted via the communication channel of the radio base station 101.
In the process in which the mobile telephone terminal 3 receiving the call service of the CS Issue-4 system moves toward the communication service area 20 of the mobile telephone switching center 2, first, the mobile telephone switching center 1 moves to the mobile telephone terminal. 3 is determined to be handed off to the communication channel held by the wireless base station 201 connected to the mobile telephone switching center 2. Mobile Telephone Switching Office 1
When transmitting a call channel transfer instruction signal for handoff to the wireless base station 101, the system operation method of the mobile telephone switching center 2 (TACS Issue-3 method in this example) which is owned by It is included in the same signal and transmitted via the signal line 1001. In FIG. 2, the call channel transfer instruction signal is received by the main control device 1011 in the radio base station, and the mobile telephone terminal 3 is currently in communication via the signal line 1010.
Call channel control device 1 that provides call service to
Handed over to 014. Call channel control device 1014
Edits the handoff message containing the system operation information of the mobile communication system of the handoff destination shown in FIG. FIG. 3 is a message format in which the system operation information of the mobile communication system of the handoff destination according to the present invention is added to the handoff message specified in the TACS Issue-4 specification. In the present embodiment, the added information is 2 bits of the 13th and 14th bits (FIG. 3A), and is “00” if the system operation method of the mobile communication system at the handoff destination is the TACS Issue-3 method. Is set, and if the system operation method of the mobile communication system at the handoff destination is the TACS Issue-4 method, "01" is set (FIG. 3 (b)).
In this embodiment, the system operation method of the adjacent mobile telephone switching center 2 is the TACS Issue-3 method.
“00” is set by the call channel control device 1014 and transmitted to the mobile phone terminal 3 via the downlink call channel.
【0010】下り通話チャネル上でハンドオフメッセー
ジを受信した移動体電話端末3はハンドオフ先のシステ
ム動作情報が現通話サービス実施方式と異なる場合、ハ
ンドオフを実行すると同時に自身の処理をハンドオフメ
ッセージ中のハンドオフ先システム動作方式に切り替え
る。この処理により、TACS Issue−4仕様の
移動体通信システムからTACS Issue−3仕様
の移動体通信システムへのシステム間ハンドオフ処理が
実現できる。When the mobile phone terminal 3 which has received the handoff message on the downlink communication channel performs the handoff at the same time when the system operation information of the handoff destination is different from the current call service implementation method, the mobile telephone terminal 3 executes its own processing and the handoff destination in the handoff message. Switch to system operation mode. By this processing, inter-system handoff processing from the mobile communication system of TACS Issue-4 specifications to the mobile communication system of TACS Issue-3 specifications can be realized.
【0011】[0011]
【発明の効果】以上説明したように本発明は、TACS
Issue−4仕様書の規定する通話サービスを提供
している移動体通信システムから隣接したTACS I
ssue−3仕様書の規定する通話サービスを提供して
いる移動体電話交換局の制御する無線基地局にTACS
Issue−4仕様書の規定する通話サービスを受け
ている移動体電話端末をハンドオフさせたい状況になっ
た場合に、ハンドオフメッセージにハンドオフ先のシス
テム動作方式を含めて移動体電話端末に送信し、移動体
電話端末がこのハンドオフ先のシステム動作方式に自端
末の動作を切り替えることにより、TACS Issu
e−4仕様の移動体通信システムからTACS Iss
ue−3仕様の移動体通信システムへのシステム間ハン
ドオフ動作を実現することができるという効果を有す
る。As described above, according to the present invention, the TACS
From the mobile communication system that provides the call service defined by the Issue-4 specifications, the TACS I adjacent to the mobile communication system
A TACS is provided to a radio base station controlled by a mobile switching center that provides a call service specified by the sue-3 specification.
When it is desired to hand off a mobile telephone terminal that is receiving the call service specified by the Issue-4 specifications, the handoff message including the system operation method of the handoff destination is transmitted to the mobile telephone terminal, and the mobile telephone terminal moves. By switching the operation of the body telephone terminal to the system operation method of the handoff destination, the TACS Issue
e-4 specification mobile communication system to TACS Iss
It has an effect that an inter-system handoff operation to a mobile communication system of ue-3 specification can be realized.
【図1】本発明の一実施例を示す移動体通信システムの
システムブロック図である。FIG. 1 is a system block diagram of a mobile communication system showing an embodiment of the present invention.
【図2】図1における無線基地局の基本構成を示すブロ
ック図である。FIG. 2 is a block diagram showing a basic configuration of a radio base station in FIG.
【図3】(a)は図1におけるハンドオフメッセージの
フォーマットの一例を示す図,(b)は同図(a)にお
けるハンドオフ先の移動体通信システムのシステム動作
情報を示す図である。3A is a diagram showing an example of a format of a handoff message in FIG. 1, and FIG. 3B is a diagram showing system operation information of a mobile communication system at a handoff destination in FIG.
1,2 移動体電話交換局 3 移動体電話端末 10,20 通信サービスエリア 12,1001,〜100n,2001,〜200n
信号線及び通話線 101,〜10n,201,〜20n 無線基地局 1010 信号線 1011 主制御装置 1012 下り制御チャネル送信装置 1013 上り制御チャネル受信装置 1014 通話チャネル制御装置 1015 アンテナ1, 2 Mobile Telephone Switching Office 3 Mobile Telephone Terminals 10, 20 Communication Service Areas 12, 1001, ~ 100n, 2001, ~ 200n
Signal line and communication line 101, to 10n, 201, to 20n Radio base station 1010 Signal line 1011 Main control device 1012 Downlink control channel transmission device 1013 Uplink control channel reception device 1014 Speech channel control device 1015 Antenna
Claims (1)
号を送信するための下り制御チャネルと、前記移動体電
話端末から前記無線基地局へ制御信号を送信するための
上り制御チャネルと、通話サービスを提供する通話チャ
ネルとを有する前記無線基地局と移動体電話交換局とか
ら構成され、TACS Issue−4仕様書に規定さ
れている移動体通信サービスを提供し且つ隣接する他の
移動体通信システムとの間での移動体電話端末ハンドオ
フ機能を有する移動体通信システムにおけるシステム間
ハンドオフ制御方式であって、前記移動体電話交換局は
システム間ハンドオフの対象となる前記隣接する他の移
動体通信システムのシステム動作がTACS Issu
e−3仕様書の規定に準じたものかTACSIssue
−4仕様書の規定に準じたものかというシステム動作情
報を保有し、制御下にある前記無線基地局の前記通話チ
ャネルを介して通話サービスの提供を受けている前記移
動体電話端末をハンドオフさせる際にこの無線基地局の
通話チャネルに対してハンドオフ先のシステム動作情報
を通話チャネル移行指示信号に含めて通知し、前記無線
基地局はハンドオフ先の移動体通信システムのシステム
動作情報が含まれている前記通話チャネル移行指示信号
を受信してハンドオフ先のシステム動作情報を既存のハ
ンドオフメッセージに追加編集し、この編集したハンド
オフメッセージを下り通話チャネルを介して前記移動体
電話端末に対して送信し、前記移動体電話端末は前記下
り通話チャネル上で受信した前記ハンドオフメッセージ
内に含まれているハンドオフ先の前記システム動作情報
を解析して前記ハンドオフ先のシステム動作情報が示す
システム動作仕様にハンドオフ後の自身の通話サービス
処理を切り替えることを特徴とする移動体通信システム
におけるシステム間ハンドオフ制御方式。1. A downlink control channel for transmitting a control signal from a radio base station to a mobile telephone terminal, an uplink control channel for transmitting a control signal from the mobile telephone terminal to the radio base station, and a call. Another mobile communication, which is composed of the radio base station having a communication channel for providing a service and a mobile switching center, provides the mobile communication service defined in the TACS Issue-4 specification and is adjacent to the mobile communication service. An intersystem handoff control method in a mobile communication system having a mobile telephone terminal handoff function with a system, wherein the mobile telephone switching center is the other adjacent mobile communication subject to intersystem handoff. The system operation of the system is TACS Issue
e-3 TACSIissue
-4 Handing off the mobile telephone terminal that holds system operation information as to whether it conforms to the specifications of the specification and is provided with the call service via the call channel of the radio base station under control At this time, the system communication information of the handoff destination is included in the communication channel transition instruction signal and notified to the communication channel of this wireless base station, and the wireless base station includes the system operation information of the mobile communication system of the handoff destination. The system operation information of the handoff destination is added and edited to the existing handoff message by receiving the call channel transfer instruction signal that is present, and the edited handoff message is transmitted to the mobile phone terminal via the downlink call channel, The mobile telephone terminal is included in the handoff message received on the downlink channel. Hand-off destination of said inter-system hand-off control method in a mobile communication system and switches its communication service processing after handoff system operation specifications analyzes the system operation information indicating the system operation information of the handoff.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4066629A JPH066294A (en) | 1992-03-25 | 1992-03-25 | Hand-off control system between systems in mobile body communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4066629A JPH066294A (en) | 1992-03-25 | 1992-03-25 | Hand-off control system between systems in mobile body communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH066294A true JPH066294A (en) | 1994-01-14 |
Family
ID=13321382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4066629A Withdrawn JPH066294A (en) | 1992-03-25 | 1992-03-25 | Hand-off control system between systems in mobile body communication system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH066294A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010502091A (en) * | 2006-08-22 | 2010-01-21 | エルジー エレクトロニクス インコーポレイティド | Handover method and control method thereof in wireless communication system |
US8139524B2 (en) | 2007-06-18 | 2012-03-20 | Lg Electronics Inc. | Control channel reception method for receiving broadcast or multicast service |
US8155648B2 (en) | 2006-08-22 | 2012-04-10 | Lg Electronics, Inc. | Method of transmitting and receiving control information in a wireless communication system |
US8964652B2 (en) | 2007-06-18 | 2015-02-24 | Lg Electronics Inc. | Method for enhancing of controlling radio resources, method for transmitting status report, and receiver in mobile communication system |
US9001766B2 (en) | 2006-10-30 | 2015-04-07 | Lg Electronics Inc. | Method for re-direction of uplink access |
-
1992
- 1992-03-25 JP JP4066629A patent/JPH066294A/en not_active Withdrawn
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010502091A (en) * | 2006-08-22 | 2010-01-21 | エルジー エレクトロニクス インコーポレイティド | Handover method and control method thereof in wireless communication system |
US8155648B2 (en) | 2006-08-22 | 2012-04-10 | Lg Electronics, Inc. | Method of transmitting and receiving control information in a wireless communication system |
US8768353B2 (en) | 2006-08-22 | 2014-07-01 | Lg Electronics Inc. | Method of transmitting and receiving control information in a wireless communication system |
US8781466B2 (en) | 2006-08-22 | 2014-07-15 | Lg Electronics Inc. | Method of transmitting and receiving control information in a wireless communication system |
US9325473B2 (en) | 2006-08-22 | 2016-04-26 | Lg Electronics Inc. | Method of transmitting and receiving control information in a wireless communication system |
US9668240B2 (en) | 2006-08-22 | 2017-05-30 | Lg Electronics Inc. | Method of transmitting and receiving control information in a wireless communication system |
US9001766B2 (en) | 2006-10-30 | 2015-04-07 | Lg Electronics Inc. | Method for re-direction of uplink access |
US8139524B2 (en) | 2007-06-18 | 2012-03-20 | Lg Electronics Inc. | Control channel reception method for receiving broadcast or multicast service |
US8964652B2 (en) | 2007-06-18 | 2015-02-24 | Lg Electronics Inc. | Method for enhancing of controlling radio resources, method for transmitting status report, and receiver in mobile communication system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5978679A (en) | Coexisting GSM and CDMA wireless telecommunications networks | |
US6975881B2 (en) | Communication controller and method for maintaining a communication connection during a cell reselection | |
US6542744B1 (en) | Handoff in a cellular network | |
US6035197A (en) | Method and system for providing a handoff from a CDMA cellular telephone system | |
EP0976291B1 (en) | Enhanced hand off signaling for high speed data and multimedia | |
US5839070A (en) | System and method for hyperband cell interoperability in a cellular telecommunications network | |
JP2004523158A (en) | Method and apparatus for improving radio spectrum usage and reducing user data delay when providing packet PSI status | |
KR100469687B1 (en) | A method for initiating in a terminal of a cellular network the measurement of power levels of signals and a terminal | |
JPH07193851A (en) | Multiplex connection system for mobile communication system | |
CN1984497B (en) | Base station switching in a hybrid GSM/CDMA network | |
JPH066294A (en) | Hand-off control system between systems in mobile body communication system | |
JPH1118130A (en) | Mobile communication system and mobile station and radio base station for mobile communication system | |
KR100718008B1 (en) | Method for controlling Multi-mode Multi-band Mobile Communication Terminal for Hand-over Between Asynchronous Communication Network and Synchronous Communication Network | |
KR101038982B1 (en) | Method for Hand-over Between Asynchronous Communication Network and Synchronous Communication Network Using Radio Frequency Identification, Mobile Communication Terminal and RFID Detector therefor | |
JP3349993B2 (en) | CDMA wireless communication system with system quality optimization function | |
KR20050106639A (en) | Mobile communication system and method for service change between asynchronous communication network and synchronous communication network | |
KR100531360B1 (en) | Method for hard hand-off in moile communication systems | |
KR100229430B1 (en) | Method for registering a location in the personal communication exchanger | |
JPH1051374A (en) | Radio repeater and radio channel relay system therefor | |
Wei | Evaluation of roaming and download times in universal cellular/wireless LAN systems | |
JPH0833030A (en) | Radio telephone system | |
KR20010026245A (en) | Apparatus for anouncing handoff fail status in mobile terminal equipment and method therefor | |
JP2001095052A (en) | Radio communication system using mobile communication terminal | |
JPH0638266A (en) | Channel changeover information system | |
JPH05244077A (en) | Mobile body telephone terminal transmission mode control system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990608 |