JPS6373725A - Phase adjusting system in mobile communication system - Google Patents
Phase adjusting system in mobile communication systemInfo
- Publication number
- JPS6373725A JPS6373725A JP21766086A JP21766086A JPS6373725A JP S6373725 A JPS6373725 A JP S6373725A JP 21766086 A JP21766086 A JP 21766086A JP 21766086 A JP21766086 A JP 21766086A JP S6373725 A JPS6373725 A JP S6373725A
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- Prior art keywords
- station
- radio base
- time slot
- base station
- adjacent
- 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
- 238000010295 mobile communication Methods 0.000 title claims description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 4
- 230000005684 electric field Effects 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
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Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は移動通信システムにおける位相調整方式に係り
、特に各無線基地局が他の無線基地局の基準局となって
、従属的に位相調整を行う位相調整方式の改良に関する
。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a phase adjustment method in a mobile communication system, and in particular, in which each radio base station serves as a reference station for other radio base stations and performs phase adjustment in a dependent manner. This paper relates to improvements in phase adjustment methods.
（従来の技術）
周知のように、移動通信システムは、第２図に示す如く
、１つの回線制御局１と、この回線制御局１へ制御回線
２を含む通信回線を介して接続され各無線ゾーン毎に配
置される複数の無線基地局ＲＺ１〜ＲＺ６と、移動機（
図示省略）とを備える。この種の移動通信システムにお
いては、回線制隈局１から制御回線２を介して各無線基
地局（ＲＺＩ〜Ｆ（２６）へ伝送される制ｔｎ信号を全
無線基地局が同一無線周波数の制御チャネルを用いて移
動機へ同時に送信する際に、その制御信号が同期して移
動機へ到達するように制御信号の位相調整を行うように
している０本発明が対象とする位相調整方式は、隣接す
る２つの無線基地局間において調整局である一方の無線
基地局が、制御チャネルの中の自局に割り当てられたタ
イムスロットで受信した自局送信に係る信号と基準局で
ある他方の無線基地局に割り当てられたタイムスロット
で受信した基準局送信に係る信号との位相差を測定する
ことによって行う位相調整方式である。(Prior Art) As is well known, a mobile communication system includes one line control station 1 and each radio connected to this line control station 1 via communication lines including a control line 2, as shown in FIG. A plurality of radio base stations RZ1 to RZ6 arranged in each zone and mobile terminals (
(not shown). In this type of mobile communication system, all radio base stations control the same radio frequency by transmitting the control tn signal from the line control station 1 to each radio base station (RZI to F (26) via the control line 2). The phase adjustment method targeted by the present invention is such that when simultaneously transmitting to a mobile device using a channel, the phase of the control signal is adjusted so that the control signal reaches the mobile device in synchronization. Between two adjacent radio base stations, one radio base station that is a coordination station receives a signal related to its own station transmission received in a time slot assigned to it in a control channel and the other radio base station that is a reference station. This is a phase adjustment method that is performed by measuring the phase difference between the signal received in the time slot assigned to the station and the signal related to the reference station transmission.
即ち、この位相調整方式では、前記制御チャネルを各無
線基地局が共通に使用する１つの共用タイムスロットと
、各無線基地局が固有に使用するために各無線基地局毎
に割り当てられる固有タイムスロットの複数個とで構成
し、該制御チャネルを時分割使用できるようにしである
。That is, in this phase adjustment method, the control channel is divided into one shared time slot that is commonly used by each radio base station, and a unique time slot that is allocated to each radio base station for unique use by each radio base station. The control channel can be used in a time-division manner.
そして、各無線基地局は対移動局受信用の制御チャネル
受信機とは別に対基地局受信専用の制御チャネル受信機
を有し、基準局および自局（調整局）がそれぞれの固有
タイムスロットで送信する制御チャネル情報を調整局が
対基地局受信専用の制御チャネル受信機で受信し、調整
局は両者の位相差が零となるように遅延制御を行うよう
になっている。In addition to the control channel receiver for mobile station reception, each radio base station has a control channel receiver dedicated to base station reception, and the reference station and own station (coordination station) transmit data in their own unique time slots. The coordinating station receives the control channel information with a control channel receiver dedicated to reception from the base station, and the coordinating station performs delay control so that the phase difference between the two becomes zero.
ところで、従来の位相調整方式では、固有タイムスロッ
トの割り当てを無線ゾーンの地理的位置の順序に従って
機械的に定めるようになっている。By the way, in the conventional phase adjustment method, the allocation of unique time slots is determined mechanically according to the order of geographical positions of wireless zones.
例えば第２図に示す如く、無線ゾーンが直列的な配置だ
とすると、制御チャネルのタイムスロットの割り付けは
、第３図に示す如く、第１番目のタイムスロットを共用
タイムスロットに、第２番目のタイムスロットを第２図
中の最左端に位置する無線ゾーンの無線基地局ＲＺ１の
固有タイムスロットに、第３番目のタイムスロットを第
２図中の左から２番目の無線ゾーンの無線基地局ＲＺ２
の固有タイムスロットに、以後同様にして第２図中の最
右端に位置する無線ゾーンの無線基地局ＲＺ６までの各
固有タイムスロットを無線ゾーンの配置順序に従って厘
番に割り当てるようになっている。なお、共用タイムス
ロットには回線制御局のＭＣＳ情報（識別情報等のシス
テム全体の共通情報や着信信号）が挿入される。For example, if the wireless zones are arranged in series as shown in Figure 2, the allocation of control channel time slots is as shown in Figure 3, with the first time slot being a shared time slot and the second time slot being a shared time slot. The slot is assigned to the unique time slot of the radio base station RZ1 in the leftmost radio zone in FIG. 2, and the third time slot is assigned to the radio base station RZ2 in the second radio zone from the left in FIG.
Similarly, each unique time slot up to the radio base station RZ6 in the rightmost radio zone in FIG. 2 is assigned to a special time slot in accordance with the arrangement order of the radio zones. Note that MCS information (common information for the entire system such as identification information and incoming signal) of the line control station is inserted into the shared time slot.
また、固有タイムスロットにはＭＢＳ情報が挿入され、
このＭＢＳ情報にはその無線基地局が使用する周波数や
識別情報（ＭＢＳｉｄ）が含まれている０位相調整はこ
のＭＢＳｉｄを利用して行われる０例えば、無線基地局
ＲＺ２が基準局で、無線基地局ＲＺ３が調整局であると
すると、無線基地局ＲＺ３は第３番目のタイムスロット
で無線基地局ＲＺ２のＭＢＳ情報を受信し、第４番目の
タイムスロットで自局が送信したＭＢＳ情報を受信し、
両ＭＢＳ情報に含まれる各ＭＢＳｉｄ間の位相差を測定
するのである。Also, MBS information is inserted into the unique time slot,
This MBS information includes the frequency and identification information (MBSid) used by the wireless base station.0 Phase adjustment is performed using this MBSid.0 For example, wireless base station RZ2 is the reference station, and the wireless base station Assuming that RZ3 is a coordinating station, radio base station RZ3 receives the MBS information of radio base station RZ2 in the third time slot, receives the MBS information transmitted by its own station in the fourth time slot,
The phase difference between each MBSid included in both MBS information is measured.
以上要するに、この位相調整方式にあっては、各無線基
地局が他の無線基地局の基準局となって従属的に位相調
整を行うのであるから、正しく位相調整が行えるために
は各無線基地局におけるタイムスロットの時間位置関係
が常に一定不変であることが必要となる。In short, in this phase adjustment method, each radio base station serves as a reference station for other radio base stations and performs phase adjustment in a dependent manner, so in order to perform phase adjustment correctly, each radio base station It is necessary that the time positional relationship of the time slots at all times remains constant.
（発明が解決しようとする問題点）
ところが、各無線基地局と回線制御局間の通信回線にお
ける制御信号の遅延量は各無線基地局において不変では
なく、経路の変更等によって大幅に変動することが往々
にしである。(Problem to be Solved by the Invention) However, the amount of delay of the control signal in the communication line between each radio base station and the line control station is not constant at each radio base station, but may vary significantly due to route changes, etc. is often the case.
例えば、無線基地局ＲＺ３への制御信号の遅延量が大き
くなると、第３図（ｂ）に示す如く、無線基地局ＲＺ３
が送信する制御チャネルの時間軸が正常時（第３図（ａ
））の場合から大幅にずれてしまい、無線基地局ＲＺ３
の固有タイムスロットが無線基地局ＲＺ２の固有タイム
スロットと重なる事態が生ずることがある。For example, when the delay amount of the control signal to the radio base station RZ3 increases, as shown in FIG.
When the time axis of the control channel transmitted by is normal (Figure 3 (a)
)), and the wireless base station RZ3
A situation may occur in which the unique time slot of the radio base station RZ2 overlaps with the unique time slot of the radio base station RZ2.
このような事態が生じた場合には、無線基地局ＲＺ２の
ＭＳＢ ｉ ｄが破壊されてしまうので、無線基地局Ｒ
Ｚ２を基準局として無線基地局ＲＺ３の位相調整を実施
しようとした場合、比較すべき各ＭＢＳｉｄが検出でき
なくなってしまう問題点がある。If such a situation occurs, the MSB i d of the radio base station RZ2 will be destroyed, so the radio base station R
When attempting to perform phase adjustment of radio base station RZ3 using Z2 as a reference station, there is a problem that each MBSid to be compared cannot be detected.
本発明は、このような従来の問題点に鑑みなされたもの
で、ある無線基地局が送信する制御チャネルの位相が大
幅にずれるようなことがあっても、容易に従属的な位相
調整をなし得る移動通信システムにおける位相調整方式
を提供することを目的としている。The present invention was made in view of such conventional problems, and even if the phase of a control channel transmitted by a certain wireless base station is significantly shifted, it is possible to easily perform dependent phase adjustment. The purpose of the present invention is to provide a phase adjustment method in a mobile communication system that obtains the following information.
（問題点を解決するための手段）
前記目的を達成するために、本発明の移動通信システム
における位相調整方式は次の如き構成を有する。(Means for Solving the Problems) In order to achieve the above object, the phase adjustment method in the mobile communication system of the present invention has the following configuration.
即ち、本発明の移動通信システムにおける位相調整方式
は、１つの回線制御局と、この回線制御局へ通信回線を
介して接続され各無線ゾーン毎に配置される複数個の無
線基地局と、移動機とを備える移動通信システムにおい
て、回線制御局からの制御信号を全無線基地局が同一無
線周波数の制御チャネルを用いて移動機へ同時に送信す
る際に。That is, the phase adjustment method in the mobile communication system of the present invention includes one line control station, a plurality of radio base stations connected to this line control station via communication lines and arranged in each radio zone, and a mobile communication system. In a mobile communication system comprising a mobile device, when all wireless base stations simultaneously transmit control signals from a line control station to mobile devices using control channels of the same radio frequency.
その制御信号が同期して移動機へ到達するように制御信
号の位相調整を行うことを、隣接する２つの無線基地局
間において調整局である一方の無線基地局が、制御チャ
ネルの中の自局に割り当てられたタイムスロットで受信
した自局送信に係る信号と基準局である他方の無線基地
局に割り当てられたタイムスロットで受信した基準局送
信に係る信号との位相差を測定することによって行う位
相調整方式において； 前記調整局に割り当てられるタ
イムスロットと前記基準局に割り当てられるタイムスロ
ットは互いに隣接するタイムスロットにならないように
したことを特徴とする。One radio base station, which is a coordinating station between two adjacent radio base stations, adjusts the phase of the control signals so that the control signals reach the mobile device in synchronization. The phase is determined by measuring the phase difference between the signal related to the own station transmission received in the time slot assigned to the station and the signal related to the reference station transmission received in the time slot assigned to the other radio base station, which is the reference station. The adjustment method is characterized in that the time slots assigned to the adjustment station and the time slots assigned to the reference station are not adjacent to each other.
（作 用）
次に、前記構成を有する本発明の移動通信方式における
位相調整方式の作用を説明する。(Function) Next, the function of the phase adjustment method in the mobile communication system of the present invention having the above configuration will be explained.
例えば、左右方向に直列的に配置される６個の無線ゾー
ンにおける各無線基地局が最左端から最右端に向かって
Ａ、Ｂ、Ｃ，Ｄ、Ｅ、Ｆの順序になっているとする。従
って、制御チャネルには各無線基地局に割り当てるため
の６個のタイムスロットがあり、これらのタイムスロッ
トをその先頭から原に＃１タイムスロット、＃２タイム
スロット、・・・、＃６タイムスロツトとする。For example, assume that the radio base stations in six radio zones arranged in series in the left-right direction are arranged in the order A, B, C, D, E, and F from the leftmost end to the rightmost end. Therefore, the control channel has six time slots to be assigned to each radio base station, and these time slots are divided into #1 time slot, #2 time slot, ..., #6 time slot from the beginning. shall be.
本発明では、隣接する２つの無線基地局において、調整
局である一方の無線基地局に割り当てられるタイムスロ
ットと基準局である他方の無線基地局に割り当てられる
タイムスロットは互いに隣接するタイムスロットになら
ないようにするのであるから、＃１タイムスロットを無
線基地局Ａに割り当てるとすると、＃２タイムスロット
はＣ〜Ｆの中の例えば無線基地局Ｃに割り当てる。In the present invention, in two adjacent radio base stations, the time slots assigned to one radio base station that is a coordination station and the time slots assigned to the other radio base station that is a reference station are not adjacent to each other. Therefore, if time slot #1 is assigned to radio base station A, time slot #2 is assigned to radio base station C among C to F, for example.
また、＃３タイムスロットをＣに隣接しない無線基地局
として例えば無線基地局Ｅに割り当て、＃４タイムスロ
ットをＥに隣接しない無線基地局Ｂに割り当て、同様に
して＃５タイムスロットを無線基地局りに、＃６タイム
スロツトを無線基地局Ｆにそれぞれ割り当てるのである
。Additionally, the #3 time slot is assigned to a wireless base station E that is not adjacent to C, the #4 time slot is assigned to a wireless base station B that is not adjacent to E, and the #5 time slot is assigned to a wireless base station B that is not adjacent to E. Specifically, time slot #6 is assigned to each radio base station F.
その結果、例えば無線基地局Ｂ、同Ｃ間において無線基
地局Ｃが無線基地局Ｂを基準局として位相調整を実施す
る場合、無線基地局Ｃが送信する制御チャネルの時間軸
が大幅にずれて、その＃２タイムスロットの時間位置が
隣接するタイムスロットと重なるような事態が生じても
、これによって従来のように基準局の送信情報を破壊す
ることがない、また、重なることとなる隣接タイムスロ
ット（＃１タイムスロットまたは＃３タイムスロット）
では、送信終了ないしは弱電界となるので無線基地局Ｃ
は自局送信情報を破壊されることなく受信できることと
なる。As a result, for example, when wireless base station C performs phase adjustment between wireless base stations B and C using wireless base station B as a reference station, the time axis of the control channel transmitted by wireless base station C will be significantly shifted. Even if the time position of the #2 time slot overlaps with an adjacent time slot, this will not destroy the transmitted information of the reference station unlike in the past. #1 timeslot or #3 timeslot)
Then, transmission ends or the electric field becomes weak, so wireless base station C
This means that the information transmitted by the own station can be received without being destroyed.
以上説明したように、本発明の移動通信システムにおけ
る位相調整方式によれば、隣接する２つの無線基地局に
おいて、調整局となる一方の無線基地局に割り当てられ
るタイムスロットと基準局となる他方の無線基準局に割
り当てられるタイムスロットは互いに隣接するタイムス
ロットにならないようにしたので、いずれかの無線基地
局の送信信号の位相が大きくずれた場合でも容易に位相
調整ができる効果がある。As explained above, according to the phase adjustment method in the mobile communication system of the present invention, in two adjacent radio base stations, the time slot assigned to one radio base station serving as a coordination station and the time slot assigned to the other radio base station serving as a reference station Since the time slots assigned to the reference stations are not adjacent to each other, it is possible to easily adjust the phase even if the phase of the transmission signal of one of the radio base stations is significantly shifted.
（実 施 例）
以下、本発明の実施例を図面を参照して説明する。第１
図は本発明の一実施例に係る位相調整方式を示す、なお
、本発明の移動通信システムは、第２図と同様であるの
で、第２図を援用することとする。(Embodiments) Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1st
The figure shows a phase adjustment method according to an embodiment of the present invention. Since the mobile communication system of the present invention is similar to that shown in FIG. 2, FIG. 2 will be referred to here.
本発明に係る位相調整方式では、第１図（ａ）に示す如
く、制御チャネルの６個の固有タイムスロットの中、第
１番目のタイムスロットを無線基地場ＲＺ１へ、第２番
目のタイムスロットを無線基地局ＲＺ３へ、第３番目の
タイムスロットを無線基地局ＲＺ５へ、第４番目のタイ
ムスロットを無線基地局ＲＺ２へ、第５番目のタイムス
ロットを無線基地局ＲＺ４へ、第６番目のタイムスロッ
トを無線基地局ＲＺ６へそれぞれ割り当てるようにし、
隣接する２つの無線基地局において調整局となる一方の
無線基地局に割り当てられるタイムスロットと基準局と
なる他方の無線基地局に割り当てられるタイムスロット
は互いに隣接するタイムスロットにならないようにしで
ある。In the phase adjustment method according to the present invention, as shown in FIG. to radio base station RZ3, the third time slot to radio base station RZ5, the fourth time slot to radio base station RZ2, the fifth time slot to radio base station RZ4, and the sixth time slot to radio base station RZ4. Assign time slots to each radio base station RZ6,
In two adjacent radio base stations, the time slots assigned to one radio base station serving as a coordination station and the time slots assigned to the other radio base station serving as a reference station are arranged so that they are not adjacent to each other.
その結果、例えば無線基地局ＲＺ２．同ＲＺ同量２３間
て無線基地局ＲＺ３が無線基地局ＲＺ２を基準局として
位相調整を実施する場合、第１図（ｂ）に示す如く、無
線基地局ＲＺ３が送信する制御チャネルの時間軸が大幅
にずれて、そのタイムスロットの時間位置が隣接するタ
イムスロットと重なるような事態が生じても、これによ
って従来のように基準局の送信情報を破壊することがな
い、また、重なることとなる隣接タイムスロット（第１
番目の固有タイムスロットまたは第３番目の固有タイム
スロット）では、送信終了ないしは弱電界となるので無
線基地局Ｃは自局送信情報を破壊されることなく受信で
きる。As a result, for example, radio base station RZ2. When the radio base station RZ3 performs phase adjustment using the radio base station RZ2 as a reference station for the same amount of 23 times, as shown in FIG. 1(b), the time axis of the control channel transmitted by the radio base station RZ3 is significantly Even if a situation occurs where the time position of that time slot overlaps with an adjacent time slot due to a shift in the time slot, this will not destroy the transmitted information of the reference station as in the past. Slot (1st
In the 3rd unique time slot or the 3rd unique time slot), the transmission ends or the electric field becomes weak, so that the radio base station C can receive its own transmitted information without being destroyed.
従って、無線基地局ＲＺ３では、無線基地局ＲＺ２およ
び自局が送信するＭＳＢ情報を自局の対基地局受信専用
制御チャネル受信機で受信して、各ＭＳＢｉｄを検出し
、両者の位相差を支障なく測定できることになる。Therefore, in the radio base station RZ3, the MSB information transmitted by the radio base station RZ2 and the own station is received by the control channel receiver dedicated to reception for the base station of the own station, and each MSBid is detected, and the phase difference between the two is detected as a hindrance. This means that measurements can be taken without any problems.
（発明の効果）
以上説明したように、本発明の移動通信システムにおけ
る位相調整方式によれば、隣接する２つの無線基地局に
おいて、調整局となる一方の無線基地局に割り当てられ
るタイムスロットと基準局となる他方の無線基準局に割
り当てられるタイムスロットは互いに隣接するタイムス
ロットにならないようにしたので、いずれかの無線基地
局の送信信号の位相が大きくずれた場合でも容易に位相
調整ができる効果がある。(Effects of the Invention) As explained above, according to the phase adjustment method in the mobile communication system of the present invention, in two adjacent radio base stations, the time slot assigned to one radio base station serving as a coordination station and the reference station Since the time slots assigned to the other radio reference station are not adjacent to each other, this has the effect of making it easy to adjust the phase even if the phase of the transmitted signal from one of the radio base stations is significantly shifted. .
第１図は本発明の一実施例に係る位相調整方式の送信タ
イミングのタイムチャート、第２図は本発明が対象とす
る移動通信システムの構成ブロック図、第３図は従来の
位相調整方式の送信タイミングのタイムチャートである
。
１・・・・・・回線制御局、 ２・・・・・・制御回線
、ＲＺ１〜ＲＺ６・・・・・・無線基地局。
代理人 弁理士 八 幡 義 博
（ｂ）
Ｊ（遺ぢｆ月の七ｌ粕寥Ａダちｊ（の送信タイミング奎
へ ／ 図
」〈を」牙〆対支とゴろイ多動、逝倦シズデ人の屑へ介
１第２図
どムカｄ
（ｂ）FIG. 1 is a time chart of transmission timing of a phase adjustment method according to an embodiment of the present invention, FIG. 2 is a block diagram of a mobile communication system targeted by the present invention, and FIG. 3 is a transmission timing chart of a conventional phase adjustment method. It is a time chart of transmission timing. 1... Line control station, 2... Control line, RZ1 to RZ6... Radio base station. Agent: Yoshihiro Yahata, Patent Attorney (b) J倦Shizude people's trash hesuke 1 Figure 2 Domuka d (b)
Claims (1)
て接続され各無線ゾーン毎に配置される複数個の無線基
地局と、移動機とを備える移動通信システムにおいて、
回線制御局からの制御信号を全無線基地局が同一無線周
波数の制御チャネルを用いて移動機へ同時に送信する際
に、その制御信号が同期して移動機へ到達するように制
御信号の位相調整を行うことを、隣接する２つの無線基
地局間において調整局である一方の無線基地局が、制御
チャネルの中の自局に割り当てられたタイムスロットで
受信した自局送信に係る信号と基準局である他方の無線
基地局に割り当てられたタイムスロットで受信した基準
局送信に係る信号との位相差を測定することによって行
う位相調整方式において；前記調整局に割り当てられる
タイムスロットと前記基準局に割り当てられるタイムス
ロットは互いに隣接するタイムスロットにならないよう
にしたことを特徴とする移動通信システムにおける位相
調整方式。In a mobile communication system comprising one line control station, a plurality of radio base stations connected to the line control station via communication lines and arranged in each radio zone, and a mobile device,
When all wireless base stations simultaneously transmit control signals from a line control station to a mobile device using the same radio frequency control channel, adjust the phase of the control signal so that the control signals reach the mobile device in synchronization. One of the radio base stations, which is a coordinating station between two adjacent radio base stations, uses the signal related to its own station transmission received in the time slot assigned to it in the control channel and the reference station. In a phase adjustment method performed by measuring the phase difference between a signal related to a reference station transmission received in a time slot assigned to another radio base station; a time slot assigned to the adjustment station and a time assigned to the reference station. A phase adjustment method in a mobile communication system characterized in that slots are not adjacent to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61217660A JP2511422B2 (en) | 1986-09-16 | 1986-09-16 | Phase adjustment method in mobile communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61217660A JP2511422B2 (en) | 1986-09-16 | 1986-09-16 | Phase adjustment method in mobile communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6373725A true JPS6373725A (en) | 1988-04-04 |
| JP2511422B2 JP2511422B2 (en) | 1996-06-26 |
Family
ID=16707723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61217660A Expired - Lifetime JP2511422B2 (en) | 1986-09-16 | 1986-09-16 | Phase adjustment method in mobile communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2511422B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03283924A (en) * | 1990-03-30 | 1991-12-13 | Nec Corp | Digital mobile communication system |
| JPH0476976U (en) * | 1990-11-19 | 1992-07-06 | ||
| EP0744842A2 (en) * | 1995-05-25 | 1996-11-27 | Mitsubishi Denki Kabushiki Kaisha | Time division multiplex control system with communication channel assignment |
| JP2007116391A (en) * | 2005-10-20 | 2007-05-10 | Ntt Docomo Inc | Base station device, and method of setting parameter for radio communication |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62141827A (en) * | 1985-12-16 | 1987-06-25 | Nippon Telegr & Teleph Corp <Ntt> | System and device for mobile radio communication |
-
1986
- 1986-09-16 JP JP61217660A patent/JP2511422B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62141827A (en) * | 1985-12-16 | 1987-06-25 | Nippon Telegr & Teleph Corp <Ntt> | System and device for mobile radio communication |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03283924A (en) * | 1990-03-30 | 1991-12-13 | Nec Corp | Digital mobile communication system |
| JPH0476976U (en) * | 1990-11-19 | 1992-07-06 | ||
| EP0744842A2 (en) * | 1995-05-25 | 1996-11-27 | Mitsubishi Denki Kabushiki Kaisha | Time division multiplex control system with communication channel assignment |
| US5784365A (en) * | 1995-05-25 | 1998-07-21 | Mitsubishi Denki Kabushiki Kaisha | Time division multiplex communication control system |
| EP0744842A3 (en) * | 1995-05-25 | 2000-02-09 | Mitsubishi Denki Kabushiki Kaisha | Time division multiplex control system with communication channel assignment |
| JP2007116391A (en) * | 2005-10-20 | 2007-05-10 | Ntt Docomo Inc | Base station device, and method of setting parameter for radio communication |
| JP4704882B2 (en) * | 2005-10-20 | 2011-06-22 | 株式会社エヌ・ティ・ティ・ドコモ | Base station apparatus and parameter setting method for wireless communication |
| US8149798B2 (en) | 2005-10-20 | 2012-04-03 | Ntt Docomo, Inc. | Base station apparatus and radio communication parameter setting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2511422B2 (en) | 1996-06-26 |
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