JPS58173925A - Mobile communication system - Google Patents
Mobile communication systemInfo
- Publication number
- JPS58173925A JPS58173925A JP57057071A JP5707182A JPS58173925A JP S58173925 A JPS58173925 A JP S58173925A JP 57057071 A JP57057071 A JP 57057071A JP 5707182 A JP5707182 A JP 5707182A JP S58173925 A JPS58173925 A JP S58173925A
- Authority
- JP
- Japan
- Prior art keywords
- base station
- station
- mobile station
- mobile
- usage rate
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/06—Hybrid resource partitioning, e.g. channel borrowing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の属する技術分野〕
本発明は無線伝送の移動通信方式のうち主として蜂巣状
にサービスエリアを配置した公衆自動車電話方式に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a mobile communication system for wireless transmission, mainly a public automobile telephone system in which service areas are arranged in a honeycomb pattern.
従来、移動局にて自らの在圏するサービスエリアを識別
してそのサービスエリアの基地局と通信を行う移動通信
方式では、基地局が移動局と接続し通信を取扱う範囲、
すなわちサービスエリアの広さを限定する判断基準は、
移動局の受信入力電界強度の不変の基準値に依存してい
る。また一方、各基地局の設備容量は、各基地局の受持
ちサービスエリア内における見込みの呼量によυ所定の
接続率が得られるように設計されているため、次のよう
々欠点が生じていた。Conventionally, in mobile communication systems in which a mobile station identifies the service area in which it is located and communicates with a base station in that service area, the range in which the base station connects with the mobile station and handles communication,
In other words, the criteria for limiting the size of the service area are:
It relies on a constant reference value of the received input field strength of the mobile station. On the other hand, the installed capacity of each base station is designed to provide a predetermined connection rate depending on the expected call volume within each base station's service area, which causes the following drawbacks. Ta.
すなわち第一に、基地局が最大容量までの呼量を扱って
いるときには、この基地局では、隣接するサービスエリ
アより当該サービスエリアに流入する通話継続中の移動
局を追跡切替でき々いこと、第二に、基地局の最大容量
以上の発着信呼はすべて不接続となること、第三に、基
地局の設計した呼量と実態との差はそのま１一方の基地
局の設備不足および他方の基地局の設備過剰となり、そ
れぞれの基地局に融通性がないことである。First, when a base station is handling traffic up to its maximum capacity, the base station is unable to track and switch mobile stations with ongoing calls flowing into the service area from an adjacent service area; Second, all incoming and outgoing calls that exceed the maximum capacity of the base station will be disconnected. Third, the difference between the base station's designed call volume and the actual situation is due to lack of equipment at one base station. The other base station has excessive equipment, and each base station lacks flexibility.
本発明は、隣接する相互の基地局の設備に融通性を持た
せ、接続率および設備の利用率が高い移動通信方式を提
供することを目的とする。An object of the present invention is to provide a mobile communication system that provides flexibility in the equipment of adjacent base stations and has a high connection rate and equipment utilization rate.
本発明は、定められた基準によって分割された相互に隣
接するサービスエリアと、これらサービスエリアを個々
に受持つ複数の基地局と、これらの基地局を制御する制
御局と、上記サービスエリアを移動する移動局とにより
構成され、前記移動局は、その受信入力電界が所定の判
断基準を超える基地局に対し通信を行うようにした移動
通信方式において、前記制御局に、各基地局の使用率を
検出し１つの基地局の使用率が所定値を超えかつこの基
地局に隣接する基地局の回線に空きがあるときに前記１
つの基地局の使用率情報を前記１つの基地局を通じて前
記移動局に送出するための手段を設け、この移動局に、
その受信入力電界を検出し判断する手段と基地局の使用
率情報を検出する手段とを設け、この移動局が前記基地
局の使用率情報に応じて移動局の入力電界の判断基準を
変更することによシ前記使用率情報を送出した基地局の
受持つサービスエリアの範囲を変更させてこの通信方式
全体としての接続率を高くしたことを特徴とする。The present invention provides service areas that are adjacent to each other divided according to predetermined criteria, a plurality of base stations that individually take charge of these service areas, a control station that controls these base stations, and a system that moves between the service areas. In a mobile communication system, the mobile station communicates with a base station whose received input electric field exceeds a predetermined judgment criterion. When the usage rate of one base station exceeds a predetermined value and the line of the base station adjacent to this base station is vacant, the above-mentioned 1.
means for transmitting utilization information of two base stations to the mobile station through the one base station, and to the mobile station,
Means for detecting and determining the received input electric field and means for detecting usage rate information of the base station are provided, and the mobile station changes the criterion for determining the input electric field of the mobile station according to the usage rate information of the base station. Particularly, the connection rate of this communication system as a whole is increased by changing the range of the service area covered by the base station that transmitted the usage rate information.
次に実施例図面を参照して詳細に説明する。 Next, a detailed explanation will be given with reference to embodiment drawings.
第１図は本発明実施例通信方式の網構成図である。第１
図において、１〜３は基地局、４〜６は基地局１〜３の
標準サービスエリア、８は標準サービスエリア４と５お
よび５と６の境界線、９は移動局、４′、６′は標準サ
ービスエリア４．６の拡大サービスエリア、５′は標準
サービスエリア５の縮小サービスエリア、１０はこのサ
ービスエリア４′と５′および５′と６′の境界線、１
１は移動局９の移動経路、１２は制御局である。標準サ
ービスエリア４〜６はこのシステムを構成するサービス
エリア群の一部であり、移動経路１１を移動する移動局
９における基地局１〜３からの受信入力電界はそれぞれ
第２図に示される入力電界強度１３〜１５になるとする
。FIG. 1 is a network configuration diagram of a communication system according to an embodiment of the present invention. 1st
In the figure, 1 to 3 are base stations, 4 to 6 are standard service areas of base stations 1 to 3, 8 is a boundary between standard service areas 4 and 5 and 5 and 6, and 9 is a mobile station, 4', 6' is the expanded service area of standard service area 4.6, 5' is the reduced service area of standard service area 5, 10 is the boundary between these service areas 4' and 5' and 5' and 6', 1
1 is a moving route of the mobile station 9, and 12 is a control station. The standard service areas 4 to 6 are part of a group of service areas that constitute this system, and the received input electric fields from the base stations 1 to 3 at the mobile station 9 moving on the moving route 11 are the inputs shown in FIG. 2, respectively. Assume that the electric field strength is 13 to 15.
本実施例では第２図の入力レベル１６〜２２を判断基準
とし、移動局９の位置情報として第６図のレベル情報２
４〜２８を使用し、基地局１〜３の使用率情報として第
４図の使用率情報２９．３０を使用する。第３図の３１
〜３４はレベル情報パターンである。い１基地局１はａ
ｌ、ａ２、・・・・・・、ａ５の無線チャンネルを、基
地局２はｂｌ、ｂ２、・・・・・・、ｂ５の無線チャン
ネルを、基地局３はＣ１、Ｃ２、・・・・・・、Ｃ５の
無線チャンネルをそれぞれ有するとする。In this embodiment, the input levels 16 to 22 in FIG. 2 are used as the judgment criteria, and the level information 2 in FIG.
4 to 28 are used, and the usage rate information 29.30 in FIG. 4 is used as the usage rate information of base stations 1 to 3. 31 in Figure 3
34 is a level information pattern. 1 base station 1 is a
The base station 2 uses the radio channels bl, b2, ..., b5, and the base station 3 uses the radio channels C1, C2, ... ..., C5 wireless channels, respectively.
次に標準時の動作を説明する。基地局１〜３には甜、在
通話に使用していないチャンネル（以下「空きチャンネ
ル」という。）があるとする。移動局９で発着信号が発
生すると、移動局９は各基地局の送信波例えばａｌ、ｂ
ｌ、０１チヤンネルを順次受信するが、移動局９の所在
する位置が第１図に示す０点であれば、第２図に示すよ
うにａ１チャンネルは入力レベル２０．２１の間で受信
でき、またｂ１チャンネルは入力レベル１９．２ｏの間
で受信でき、０１チヤンネルはほぼ受信できない。Next, the operation in standard time will be explained. It is assumed that base stations 1 to 3 have channels that are not used for busy calls (hereinafter referred to as "vacant channels"). When a departure/arrival signal is generated at the mobile station 9, the mobile station 9 receives the transmission waves of each base station, e.g., al, b.
Channels l and 01 are received sequentially, but if the location of the mobile station 9 is the 0 point shown in FIG. 1, the a1 channel can be received at an input level between 20 and 21 as shown in FIG. Further, the b1 channel can be received at an input level of 19.2o, and the 01 channel can hardly be received.
また基地局１〜３はａｌ、ｂｌ、０１チヤンネルに制御
局１２からの使用率情報２９を乗せていることから、移
動局９では、ａｌ、ｂｌ、０１チヤンネルに対して第２
図の判断基準の入力レベル１８〜２２を第３図のレベル
情報２４〜２８に対応させてレベル情報を作成すれば、
ａ１チャンネルはレベル情報３５で受信でき、ｂ１チャ
ンネルはレベル情報３６で受信できる。０１チヤンネル
は受信できない。Furthermore, since the base stations 1 to 3 carry the usage rate information 29 from the control station 12 on the al, bl, and 01 channels, the mobile station 9 uses the second
If the level information is created by making the input levels 18 to 22 of the judgment criteria in the figure correspond to the level information 24 to 28 in Figure 3,
The a1 channel can be received with level information 35, and the b1 channel can be received with level information 36. 01 channel cannot be received.
このため最大レベル情報で受信できるのがｂ１チャンネ
ルであることから、移動局９はｂ１チャンネルで基地局
１〜３に送信する。ここでｂ１チャンネルが受信できる
のは基地局２だけであるため、基地局２は所定の手続き
で自局の持つｂ１〜ｂ５チャンネルのうちの空きチャン
ネル１つを移動局９に割当て接続動作を行う。この状態
での標準サービスエリア４．５および５．６の境界線は
、境界点Ｂ、Ｇすなわち第１図の境界線８である。Therefore, since the maximum level information can be received on the b1 channel, the mobile station 9 transmits to the base stations 1 to 3 on the b1 channel. Here, since only base station 2 can receive the b1 channel, base station 2 allocates one free channel among its b1 to b5 channels to mobile station 9 according to a predetermined procedure and performs a connection operation. . In this state, the boundaries between standard service areas 4.5 and 5.6 are boundary points B and G, ie, boundary line 8 in FIG. 1.
次に標準サービスエリア５の基地局２に所定値を超えた
呼量が集中し、かつ隣接のサービスエリア４および６に
は余裕がある場合の動作について説明する。この場合に
は制御局１２Ｃ１、基地局２を通じて移動局９に送出す
る使用率情報を使用率情報２９から３０に変更する。第
４図に示すように移動局９でけａ１チャンネルに乗って
いる使用率情報は、使用率情報２９であることから標準
時と同様にレベル情報３５で受信できる。またｂ１チャ
ンネルに対しては、使用率情報３０が乗っていることか
ら第１図に示す入力レベル１６〜２０をレベル情報２４
〜２８に対応させて、すなわちレベル情報パターンをパ
ターン３２かラバターン３４ｔＣ変更しレベル判定基準
を２段階引上げてレベル情報を作成すれば、ｂ１チャン
ネルはレベ、ル情報３７で受信できることになる。Ｃ１
チャンネルは受信できない。Next, an explanation will be given of the operation when a call volume exceeding a predetermined value is concentrated at the base station 2 in the standard service area 5, and there is room in the adjacent service areas 4 and 6. In this case, the usage rate information sent to the mobile station 9 through the control station 12C1 and the base station 2 is changed from usage rate information 29 to 30. As shown in FIG. 4, the usage rate information carried by the mobile station 9 on the a1 channel is the usage rate information 29, so it can be received as the level information 35 in the same way as in standard time. Furthermore, since the usage rate information 30 is included in the b1 channel, the input levels 16 to 20 shown in FIG.
28, that is, by changing the level information pattern to pattern 32 or rubber turn 34tC and raising the level judgment standard by two levels, the b1 channel can receive level information 37. C1
Channel cannot be received.
上述したように最大レベル情報で受信できるのはａ１チ
ャンネルであることから、移動局９はａ１チャンネルで
基地局１〜３に送信し、標準時と同様の動作で移動局９
は基地局１に接続される。この状態では、サービスエリ
アの境界は境界点Ｄ１Ｆすなわち第１図の境界線１０と
なり、基地局２のサービスエリアがエリア５からエリア
５′に縮小される。一方、基地局１．３のサービスエＩ
Ｊ７ｕエリア４．６からエリア４’、６’Ｅで拡大され
ることになシ、基地局２の標準サービスエリア５の周辺
部に存在する移動局９は隣接するサービスエリア４また
は６に分散され基地局２の負荷が軽減される。As mentioned above, since the maximum level information can be received on the a1 channel, the mobile station 9 transmits to the base stations 1 to 3 on the a1 channel, and the mobile station 9 receives the information in the same manner as in standard time.
is connected to base station 1. In this state, the boundary of the service area becomes the boundary point D1F, that is, the boundary line 10 in FIG. 1, and the service area of the base station 2 is reduced from area 5 to area 5'. On the other hand, the service area I of base station 1.3
Since the J7u area 4.6 is not expanded to areas 4' and 6'E, mobile stations 9 existing in the periphery of the standard service area 5 of the base station 2 are distributed to the adjacent service area 4 or 6. The load on base station 2 is reduced.
次に以上の動作を実現するための各局の構成および動作
について説明する。Next, the configuration and operation of each station to realize the above operation will be explained.
第５図は本発明実施例通信方式に用いられる制御局１２
のブロック構成図である。第５図において、４１け回線
制御部、４２は自動車電話回線、４３は基地局１用回線
、４４は基地局ｎ用回線であって、これらは普通の制御
局としての構成を表わしている。４５は使用率検出部、
４６は使用率情報信号線であって、これらは本発明によ
る通信方式において特に用いられるものである。FIG. 5 shows a control station 12 used in the communication system according to the embodiment of the present invention.
FIG. In FIG. 5, 41 line control units, 42 a car telephone line, 43 a base station 1 line, and 44 a base station n line, represent the configuration of a normal control station. 45 is a usage rate detection unit;
Reference numeral 46 indicates a usage rate information signal line, which is particularly used in the communication system according to the present invention.
このような構成の制御局１２では使用率検出部４５にお
いて、回線制御部４１の接続状態から各基地局毎の回線
使用率を検出し、ある基地局（本実施例では基地局２）
の回線使用率が所定値を超え、かつ隣接基地局（本実施
例では基地局１または３）の回線に空きがあるとき、そ
の回線使用率が所定値を超えた基地局のサービスエリア
に存在する移動局９に対して、判断基準の変更を要求す
る信号を基地局用回線を通じて送出する。In the control station 12 having such a configuration, the usage rate detection unit 45 detects the line usage rate of each base station from the connection state of the line control unit 41, and detects the line usage rate of each base station (base station 2 in this embodiment).
When the line usage rate of the base station exceeds a predetermined value and the line of an adjacent base station (base station 1 or 3 in this example) is available, the base station whose line usage rate exceeds the predetermined value exists in the service area. A signal requesting the mobile station 9 to change the judgment criteria is sent through the base station line.
第６図は本発明実施例通信方式に用いられる基地局１．
２、または３のブロック構成図である。FIG. 6 shows the base station 1 used in the communication system according to the embodiment of the present invention.
2 or 3 is a block configuration diagram.
第６図において、５１はアンテナ、５２は送受共用器、
５３は送信機、５４は受信機、５５け下り音声／データ
信号線、５６は上シ音声／データ信号線であって、これ
らは普通の基地局としての構成をあられしている。制御
局１２からの使用率情報は、下シ音声／データ信号線５
５から入シ送イに機５３および送受共用器５２を介して
アンテナ５１から移動局９に送信される。In FIG. 6, 51 is an antenna, 52 is a duplexer,
53 is a transmitter, 54 is a receiver, 55 is a downlink voice/data signal line, and 56 is an upstream voice/data signal line, and these are configured as an ordinary base station. The usage rate information from the control station 12 is transmitted through the lower voice/data signal line 5.
5 and is then transmitted from the antenna 51 to the mobile station 9 via the transmitter 53 and the duplexer 52.
第７図は本発明実施例通信方式に用いられる移動局９の
ブロック構成図である。第７図において、６１はアンテ
ナ、６２は送受共用器、６３は送信機、６４は受信機、
６７はシンセサイザ、６８は上り音声／データ信号線、
６９は下シ音声／データ信号線であって、これらは普通
の移動局としての構成を表わしている。６５は入力電界
検出部、６６は制御部であって、これらは本発明による
通信方式において特に用いられるものである。FIG. 7 is a block diagram of the mobile station 9 used in the communication system according to the embodiment of the present invention. In FIG. 7, 61 is an antenna, 62 is a duplexer, 63 is a transmitter, 64 is a receiver,
67 is a synthesizer, 68 is an upstream audio/data signal line,
Reference numeral 69 indicates lower voice/data signal lines, and these represent the configuration of a normal mobile station. 65 is an input electric field detection section, and 66 is a control section, which are particularly used in the communication system according to the present invention.
このような構成の移動局９では、移動発呼時に制御部６
６がａｌ、ｂｌ、ｃｌなどのチャンネルを順次指定し、
そのチャンネルの復調信号（使用率情報）を取込む。入
力電界検出部６５が受信入力電界を検出し、制御部６６
に渡す。ｆＩｌ制御部６６は前記復調信号を用いてこれ
をレベル情報に変換し、最大となるレベル情報のチャン
ネル番号にシンセサイザ６７を指定する。このとき送信
機６３はオフ状態にしておく。以上の動作で通話に使用
するチャンネルを決定し、送信機６３を立上げ発呼信号
を基地局に送出する。基地局が発呼する時には、移動局
９は該当移動局番号と目番号が一致すれば、上記のシー
ケンスを開始し最大となるレベル情報のチャンネル番号
を決定し応答信号を返す。In the mobile station 9 having such a configuration, the control unit 6
6 sequentially specifies channels such as al, bl, cl, etc.
Retrieve the demodulated signal (usage rate information) of that channel. The input electric field detection section 65 detects the received input electric field, and the control section 66
give it to The fIl control unit 66 uses the demodulated signal to convert it into level information, and designates the synthesizer 67 as the channel number of the maximum level information. At this time, the transmitter 63 is kept in an off state. With the above operations, the channel to be used for the call is determined, and the transmitter 63 is turned on to send a calling signal to the base station. When the base station makes a call, if the mobile station number matches the mobile station number, the mobile station 9 starts the above sequence, determines the channel number with the maximum level information, and returns a response signal.
なお本実施例では、移動局の判断基準を引上げることで
標準サービスエリア５を縮小サービスエリア５′に縮小
したが、反対に移動局９の判断基準を引下げることで、
標準サービスエリア５を拡大することも可能である。こ
の移動局の判断基準変更によるサービスエリアの広さの
制御は制御局１２の制御下にある全基地局に及び、この
制御は発生した呼量が設備容量を超えたサービスエリア
に対して行われ、このサービスエリア内の移動局との接
続を隣接するサービスエリアに分散するように有機的に
行われることが特徴であって、対象とするチャンネルお
よびサービスエリアの組合せが限定されるものではない
。 −
〔発明の効果〕
以上述べたように、本発明によれば、各基地局の回線使
用率を検出し、この使用率情報を基地局を通じて移動局
に送出するように制御局を構成することにより、移動局
は各基地局の使用率の程度を知ることができる。In this embodiment, the standard service area 5 is reduced to the reduced service area 5' by raising the criteria for determining the mobile station, but conversely, by lowering the criteria for determining the mobile station 9,
It is also possible to expand the standard service area 5. This control of the size of the service area by changing the mobile station judgment criteria applies to all base stations under the control of the control station 12, and this control is performed for service areas where the call volume exceeds the installed capacity. , is characterized in that connections with mobile stations within this service area are organically distributed to adjacent service areas, and the combination of target channels and service areas is not limited. - [Effects of the Invention] As described above, according to the present invention, the control station can be configured to detect the line usage rate of each base station and send this usage rate information to the mobile station via the base station. This allows the mobile station to know the extent of the usage rate of each base station.
また上記制御局の構成に加えて、移動局に上記使用率に
応じて受信入力電界の判断基準を変更する手段を備える
ことにより、回線の使用率に応じてサービスエリアの範
囲を変化して、全体としての回線接続率を高くすること
ができる。これにより通信網が柔軟に対応できるので、
全体として扱える呼量が多くかり、接続率を一定とすれ
ば、従来より少ない設備で通信網の運用をすることがで
きる優れた効果がある。In addition to the configuration of the control station, the mobile station is equipped with a means for changing the criterion for receiving input electric field according to the usage rate, so that the range of the service area can be changed according to the usage rate of the line. The overall line connection rate can be increased. This allows the communication network to respond flexibly,
As long as the overall call volume that can be handled is large and the connection rate is kept constant, it has the advantage of being able to operate the communication network with less equipment than before.
特に、サービスエリアの広さの制御を移動局の判断基準
の変更により行うことから、移動局毎に利用できるサー
ビスエリアの広さの制御を行うことが可能と々す、例え
ば災害時の通話規制に対して優先度の高い移動局にはサ
ービスエリアを大きくシ、一般の移動局に対してはサー
ビスエリアを小さくすることが可能である。In particular, since the size of the service area is controlled by changing the judgment criteria of mobile stations, it is possible to control the size of the service area that can be used by each mobile station, for example, restricting calls in the event of a disaster. It is possible to increase the service area for mobile stations with high priority, and to decrease the service area for general mobile stations.
第１図は本発明実施例通信方式の網構成１吻。
第２図は第１図のサービスエリアにおける移動局位置と
移動局入力電界を示す図。
第３図は同じく移動局位置と移動局におけるレベル情報
の関係を示す図。
第４図は同じく各基地局と使用率情報の関係を示す図。
第５図は本発明実施例通信方式の制御局のブロック構成
図。
第６図は同じく基地局のブロック構成図。
第７図は同じく移動局のブロック構成図。
１〜３・・・基地局、４〜６・・・標準サービスエリア
、４’、６’・・・拡大サービスエリア、５′・・・縮
小サービスエリア、８．１０・・・境界線、９・・・移
動局、１１・・・移動経路、１２・・・制御局、４５・
・・使用率検出部、４６・・・使用率検出情報信号線、
６５・・・入力電界検出部、６６・・・制御部。
特許出願人 日本電気株式会社、。
代理人 弁理士弁 出 直 孝
第１図
第６図
−１５５−FIG. 1 shows a first network configuration of a communication system according to an embodiment of the present invention. FIG. 2 is a diagram showing the mobile station position and mobile station input electric field in the service area of FIG. 1. FIG. 3 is a diagram showing the relationship between the mobile station position and the level information at the mobile station. FIG. 4 is a diagram showing the relationship between each base station and usage rate information. FIG. 5 is a block configuration diagram of a control station in a communication system according to an embodiment of the present invention. FIG. 6 is a block diagram of the base station. FIG. 7 is a block diagram of the mobile station as well. 1-3... Base station, 4-6... Standard service area, 4', 6'... Expanded service area, 5'... Reduced service area, 8.10... Boundary line, 9 ...Mobile station, 11...Movement route, 12...Control station, 45.
... Usage rate detection unit, 46... Usage rate detection information signal line,
65... Input electric field detection section, 66... Control section. Patent applicant NEC Corporation,. Representative Patent Attorney Takashi De Nao Figure 1 Figure 6-155-
Claims (1)
持つ複数の基地局と、これらの基地局を制御する制御局
と、前記サービスエリアを移動する移動局とを含み、前
記移動局は、その受信入力電界が所定の判断基準を超え
る基地局に対して通信を行う移動通信方式において、前
記制御局に、各基地局の瞬時の使用率を検出し１つの基
地局の使用率が所定値を超えかつこの基地局に隣接する
基地局の回線に空きがあるときに前記１つの基地局の使
用率情報を前記１つの基地局を通じて前記移動局に送出
する手段を備え、前記移動局に、前記基地局の使用率情
報を検出する手段と、この手段によシ検出された前記基
地局の使用率情報に応じてこの移動局の受信入力電界の
判断基準を変更する手段とを備えたことを特徴とする移
動通信方式。(1) The mobile station includes a plurality of base stations that individually take charge of a plurality of mutually adjacent service areas, a control station that controls these base stations, and a mobile station that moves within the service area, and the mobile station: In a mobile communication system that communicates with a base station whose received input electric field exceeds a predetermined criterion, the control station detects the instantaneous usage rate of each base station and determines when the usage rate of one base station reaches a predetermined value. means for transmitting utilization information of the one base station to the mobile station through the one base station when the line of the base station adjacent to the base station is free, and the mobile station is provided with: The mobile station further comprises means for detecting usage rate information of the base station, and means for changing a criterion for determining a receiving input electric field of the mobile station in accordance with the usage rate information of the base station detected by the means. A mobile communication system characterized by
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57057071A JPS58173925A (en) | 1982-04-05 | 1982-04-05 | Mobile communication system |
| US06/388,367 US4435840A (en) | 1981-06-22 | 1982-06-14 | Radio mobile communication system wherein probability of loss of calls is reduced without a surplus of base station equipment |
| CA000405562A CA1176311A (en) | 1981-06-22 | 1982-06-21 | Radio mobile communication system wherein probability of loss of calls is reduced without a surplus of base station equipment |
| AU85095/82A AU546036B2 (en) | 1981-06-22 | 1982-06-22 | Radio mobile communications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57057071A JPS58173925A (en) | 1982-04-05 | 1982-04-05 | Mobile communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58173925A true JPS58173925A (en) | 1983-10-12 |
| JPS6365248B2 JPS6365248B2 (en) | 1988-12-15 |
Family
ID=13045212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57057071A Granted JPS58173925A (en) | 1981-06-22 | 1982-04-05 | Mobile communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58173925A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03102925A (en) * | 1989-09-18 | 1991-04-30 | Nippon Telegr & Teleph Corp <Ntt> | Radio zone selecting method |
| JPH0470094A (en) * | 1990-07-09 | 1992-03-05 | Nippon Telegr & Teleph Corp <Ntt> | Mobile radio communication system and mobile station device |
| JP2005223447A (en) * | 2004-02-03 | 2005-08-18 | Sony Ericsson Mobilecommunications Japan Inc | Method, system, and terminal of radio communication |
-
1982
- 1982-04-05 JP JP57057071A patent/JPS58173925A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03102925A (en) * | 1989-09-18 | 1991-04-30 | Nippon Telegr & Teleph Corp <Ntt> | Radio zone selecting method |
| JPH0470094A (en) * | 1990-07-09 | 1992-03-05 | Nippon Telegr & Teleph Corp <Ntt> | Mobile radio communication system and mobile station device |
| JP2005223447A (en) * | 2004-02-03 | 2005-08-18 | Sony Ericsson Mobilecommunications Japan Inc | Method, system, and terminal of radio communication |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6365248B2 (en) | 1988-12-15 |
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