JP3086548B2 - Digital mobile phone equipment - Google Patents
Digital mobile phone equipmentInfo
- Publication number
- JP3086548B2 JP3086548B2 JP04277230A JP27723092A JP3086548B2 JP 3086548 B2 JP3086548 B2 JP 3086548B2 JP 04277230 A JP04277230 A JP 04277230A JP 27723092 A JP27723092 A JP 27723092A JP 3086548 B2 JP3086548 B2 JP 3086548B2
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- field strength
- threshold value
- equal
- average value
- 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.)
- Expired - Lifetime
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、移動機が受信電波の電
界強度を所定期間毎に所定回数測定し、その平均値を基
地局に報告する、自動車電話などの、セルラー方式のデ
ジタル移動電話装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cellular type digital mobile telephone, such as a car telephone, in which a mobile station measures the electric field strength of a received radio wave a predetermined number of times at predetermined time intervals and reports the average value to a base station. It concerns the device.
【０００２】[0002]
【従来の技術】従来のデジタル移動電話装置は、受信電
波が一時的に劣化したときや短期遮断したときにも、所
定期間に所定回数測定した電界強度の全てを平均値の対
象としていた。例えば、電界強度を２０ｍｓｅｃ毎に３
６回測定し、それらの値の全ての合計を３６で割って平
均値を求め、それを基地局に報告するという動作を、７
２０ｍｓｅｃ毎に繰り返していた。2. Description of the Related Art In a conventional digital mobile telephone device, all the electric field strengths measured a predetermined number of times during a predetermined period are subjected to an average value even when a received radio wave is temporarily deteriorated or short-term cutoff. For example, the electric field intensity is set to 3 every 20 msec.
The operation of measuring six times, dividing the sum of all of those values by 36 to obtain an average value, and reporting the average value to the base station is referred to as “7.
It was repeated every 20 msec.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら上記従来
の構成では、３６回の測定中に数回電界強度が小さくな
った場合でも、平均値が小さくなり、基地局側で電波の
劣化と判断することがあるので、電波の弱い地域におい
て不必要に通話が切れたりハンド・オフするという問題
があった。However, in the above-mentioned conventional configuration, even when the electric field intensity is reduced several times during the 36 measurements, the average value is reduced, and the base station determines that the radio wave is degraded. Therefore, there is a problem that a call is unnecessarily cut off or handed off in an area where the radio wave is weak.
【０００４】本発明はかかる事情に鑑みて成されたもの
であり、電波の弱い地域においても不必要に通話が切れ
たりハンド・オフすることのないデジタル移動電話装置
を提供することを目的とする。[0004] The present invention has been made in view of the above circumstances, and has as its object to provide a digital mobile telephone device that does not unnecessarily cut off or hand off a call even in an area where radio waves are weak. .
【０００５】[0005]
【課題を解決するための手段】本発明は、移動機が受信
電波の電界強度を所定期間毎に所定回数測定し、その平
均値を基地局に報告するセルラー方式のデジタル移動電
話装置において、前記移動機に、前記電界強度が所定の
しきい値以上であるか否かを判断するしきい値判断手段
と、このしきい値判断手段により電界強度がしきい値以
上であると判断された回数が前記所定回数のうち一定回
数以上であるか否かを判断する回数判断手段と、この回
数判断手段により電界強度がしきい値以上である回数が
一定回数以上であると判断されたときに、しきい値以上
の電界強度の平均値を演算する第１の演算手段と、前記
回数判断手段により電界強度がしきい値以上である回数
が一定回数未満であると判断されたときに、全ての電界
強度の平均値を演算する第２の演算手段とを備え、前記
第１および第２の演算手段の演算結果を電界強度の平均
値として前記基地局に報告する構成としたことを特徴と
している。SUMMARY OF THE INVENTION The present invention relates to a cellular digital mobile telephone device in which a mobile station measures the electric field strength of a received radio wave a predetermined number of times at predetermined time intervals and reports the average value to a base station. Threshold value determining means for determining whether or not the electric field strength is equal to or greater than a predetermined threshold; and the number of times that the electric field strength is determined to be equal to or greater than the threshold value by the threshold value determining means. When the number of times the electric field strength is equal to or greater than the threshold value is determined to be equal to or greater than a certain number of times, and A first calculating means for calculating an average value of the electric field strength equal to or more than the threshold value, and when the number of times that the electric field strength is equal to or more than the threshold value is determined to be less than a certain number of times, The average of the electric field strength And a second calculating means for, is characterized by the calculation results of the first and second calculating means and configured to report to the base station as an average value of the electric field strength.
【０００６】[0006]
【作用】しきい値判断手段は、電界強度が所定のしきい
値以上であるか否かを判断する。回数判断手段は、しき
い値判断手段により電界強度がしきい値以上であると判
断された回数が所定回数のうち一定回数以上であるか否
かを判断する。第１の演算手段は、回数判断手段により
電界強度がしきい値以上である回数が一定回数以上であ
ると判断されたときに、しきい値以上の電界強度の平均
値を演算する。第２の演算手段は、回数判断手段により
電界強度がしきい値以上である回数が一定回数未満であ
ると判断されたときに、全ての電界強度の平均値を演算
する。そして、第１および第２の演算手段の演算結果を
電界強度の平均値として基地局に報告する。The threshold value judging means judges whether or not the electric field strength is equal to or higher than a predetermined threshold value. The number-of-times judging means judges whether or not the number of times that the electric field strength is judged to be equal to or more than the threshold value by the threshold value judging means is equal to or more than a predetermined number of times of the predetermined number of times. The first calculating means calculates an average value of the electric field strengths equal to or more than the threshold value when the number of times that the electric field strength is equal to or more than the threshold value is judged to be equal to or more than a certain number. The second calculating means calculates the average value of all the electric field intensities when the number of times that the electric field strength is equal to or more than the threshold value is determined to be less than a predetermined number by the number-of-times judging means. Then, the calculation results of the first and second calculation means are reported to the base station as an average value of the electric field strength.
【０００７】[0007]
【実施例】以下、本発明の実施例を図面を用いて詳細に
説明する。図１は本発明の一実施例におけるデジタル移
動電話装置の移動機の構成図で、この移動機は、アンテ
ナ１と、受信系のＲＦ・ＩＦ部２と、復調器３と、受信
系のＴＤＭＡ処理部４と、Ｄ／Ａ変換部５と、音声処理
部６と、制御部７と、ＰＬＬ周波数シンセサイザ部８
と、Ａ／Ｄ変換部９と、送信系のＴＤＭＡ処理部１０
と、変調器１１と、送信系のＲＦ・ＩＦ部１２と、メモ
リ１３ａ〜１３ｃと、カウンタ１４と、しきい値判断部
１５と、カウンタ判断部１６と、キー部１７と、表示部
１８と、リンガー１９と、スピーカ２０と、マイクロホ
ン２１とを備えている。受信系において、ＲＦ・ＩＦ部
２は、ＲＦフィルタやＲＦアンプやＭＩＸ回路やＩＦフ
ィルタやＩＦアンプなどからなり、アンテナ１から入力
された高周波信号のうち所定の周波数帯域の信号を取り
出して増幅し、制御部７からの制御信号によりＰＬＬ周
波数シンセサイザ部８からの信号に基づいて基準クロッ
クを作出し、この基準クロックと高周波信号とをミキシ
ングし、トランジスタの非直線部分を使って発生する周
波数スペクトラムの差分のみを取り出す。復調器３は、
ゲートアレイやＤＳＰ（ディジタルシグナルプロセッ
サ）などで構成されるデータ復調回路を含んでおり、Ｒ
Ｆ・ＩＦ部２からの周波数信号をπ／４シフト４相ＱＰ
ＳＫ復調する。ＴＤＭＡ処理部４は、復調器３からの信
号をＴＤＭＡ処理し、音声信号部分をＶＳＥＬＰ処理す
ると共に、メッセージなどの制御データ部分に対して復
号や誤り訂正などの処理を行う。Ｄ／Ａ変換部５は、Ｔ
ＤＭＡ処理部４からのディジタルの音声信号をアナログ
の音声信号に変換する。音声処理部６は、Ｄ／Ａ変換部
５からのアナログ信号に対して増幅処理やインピーダン
ス変換を施し、リンガー１９やスピーカ２０に供給す
る。制御部７は、ＴＤＭＡ処理部４からの制御データを
メモリ１３ａに格納し、その制御データに基づいて処理
を行う。一方、送信系において、ユーザーにより発せら
れたマイクロホン２１からの音声は、音声処理部６を介
してＡ／Ｄ変換部９に送られ、アナログの音声信号がデ
ィジタル信号に変換されるとともにＶＳＥＬＰ処理が行
われる。制御部７は、ＲＦ・ＩＦ部２からの電界強度を
測定するとともに、メモリ１３ａ内の各種テーブルを用
いて、メッセージなどのデータに対してコード変換や誤
り訂正を行う。さらに制御部７は、カウンタ判断部１６
によりカウンタ１４の値が一定値を越えていると判断さ
れたときに、メモリ１３ｂに記憶されている電界強度の
平均値を演算する第１の演算手段と、カウンタ判断部１
６によりカウンタ１４の値が一定値以下であると判断さ
れたときに、メモリ１３ｂに記憶されている電界強度と
メモリ１３ｃに記憶されている電界強度との全ての電界
強度の平均値を演算する第２の演算手段とを構成してお
り、第１および第２の演算手段の演算結果を電界強度の
平均値として図外の基地局に報告させる。ＴＤＭＡ処理
部１０は、制御部７からのデータやＡ／Ｄ変換部９から
の音声信号をＴＤＭＡ処理する。変調器１１は、ＴＤＭ
Ａ処理部１０からの信号をπ／４シフト４相ＱＰＳＫ変
調する。ＲＦ・ＩＦ部１２は、変調器１１からの信号を
設定チャンネルに応じた信号とミキシングし、必要な周
波数成分だけを取り出し、電力増幅し、出力分だけを効
率よくアンテナ１を通して送出する。なお、メモリ１３
ａには、各種テーブルや受信した制御データなどが格納
される。メモリ１３ｂには、しきい値以上の電界強度が
格納される。メモリ１３ｃには、しきい値未満の電界強
度が格納される。カウンタ１４は、しきい値以上の電界
強度を測定した回数を計数する。しきい値判断部１５
は、電界強度がしきい値以上であるか否かを判断する。
カウンタ判断部１６は、カウンタ１４の値が一定値を越
えているか否かを判断する。キー部１７は、入力される
キーの制御を行う。表示部１８は、ＬＥＤやＬＣＤなど
の表示素子（図示せず）を制御する。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram of a mobile unit of a digital mobile telephone device according to an embodiment of the present invention. The mobile unit includes an antenna 1, a receiving RF / IF unit 2, a demodulator 3, and a receiving TDMA. Processing unit 4, D / A conversion unit 5, audio processing unit 6, control unit 7, PLL frequency synthesizer unit 8
, An A / D converter 9 and a TDMA processing unit 10 of a transmission system
, A modulator 11, a transmission RF / IF unit 12, memories 13a to 13c, a counter 14, a threshold value judgment unit 15, a counter judgment unit 16, a key unit 17, a display unit 18, , A ringer 19, a speaker 20, and a microphone 21. In the receiving system, the RF / IF unit 2 includes an RF filter, an RF amplifier, a MIX circuit, an IF filter, an IF amplifier, and the like, and extracts a signal in a predetermined frequency band from a high frequency signal input from the antenna 1 and amplifies the signal. , A reference clock is generated based on a signal from the PLL frequency synthesizer unit 8 based on a control signal from the control unit 7, and the reference clock is mixed with a high-frequency signal. Extract only differences. The demodulator 3
A data demodulation circuit including a gate array and a DSP (digital signal processor) is included.
Shifts the frequency signal from the F / IF unit 2 by π / 4 shift four-phase QP
SK demodulation. The TDMA processing unit 4 performs TDMA processing on the signal from the demodulator 3, performs VSELP processing on the audio signal part, and performs processing such as decoding and error correction on a control data part such as a message. The D / A conversion unit 5 calculates T
The digital audio signal from the DMA processing unit 4 is converted into an analog audio signal. The audio processing unit 6 performs amplification processing and impedance conversion on the analog signal from the D / A conversion unit 5 and supplies the analog signal to the ringer 19 and the speaker 20. The control unit 7 stores control data from the TDMA processing unit 4 in the memory 13a, and performs processing based on the control data. On the other hand, in the transmission system, the sound from the microphone 21 uttered by the user is sent to the A / D converter 9 via the sound processor 6, where the analog sound signal is converted into a digital signal and the VSELP process is performed. Done. The control unit 7 measures the electric field strength from the RF / IF unit 2 and performs code conversion and error correction on data such as messages using various tables in the memory 13a. Further, the control unit 7 includes a counter determination unit 16
When it is determined that the value of the counter 14 exceeds a certain value, the first calculating means for calculating the average value of the electric field strength stored in the memory 13b, and the counter determining unit 1
6, when it is determined that the value of the counter 14 is equal to or smaller than a predetermined value, the average value of all the electric field intensities stored in the memory 13b and the memory 13c is calculated. The second calculation means is constituted, and the calculation results of the first and second calculation means are reported to a base station (not shown) as an average value of the electric field strength. The TDMA processing unit 10 performs TDMA processing on data from the control unit 7 and audio signals from the A / D conversion unit 9. The modulator 11 is a TDM
The signal from the A processing unit 10 is subjected to π / 4 shift 4-phase QPSK modulation. The RF / IF unit 12 mixes the signal from the modulator 11 with a signal corresponding to the set channel, extracts only necessary frequency components, amplifies the power, and transmits only the output through the antenna 1 efficiently. The memory 13
In a, various tables and received control data are stored. The memory 13b stores an electric field strength equal to or higher than a threshold value. The memory 13c stores an electric field strength less than the threshold value. The counter 14 counts the number of times the electric field strength equal to or higher than the threshold value is measured. Threshold judgment unit 15
Determines whether the electric field strength is equal to or greater than a threshold value.
The counter determining unit 16 determines whether the value of the counter 14 has exceeded a certain value. The key unit 17 controls a key to be input. The display unit 18 controls a display element (not shown) such as an LED or an LCD.
【０００８】図２は送受信データのフレーム構造の説明
図である。次に上記デジタル移動電話装置の動作の要点
について、図３のフローチャートを参照しながら説明す
る。先ず制御部７が、ダイバーシチ区間の先頭から電界
強度（以下「ＲＳＳＩ」と記す）受信可能区間内で２０
ｍｓ毎に、ＲＳＳＩの受信処理を行う（ステップＳ
１）。次にしきい値判断部１５が、ＲＳＳＩがレベル劣
化の判断値である所定のしきい値以上であるか否かを判
断し（ステップＳ２）、しきい値以上であれば、制御部
７が、ＲＳＳＩをメモリ１３ｂに格納する（ステップＳ
３）。次に制御部７が、カウンタ１４の値を１だけ増加
させる（ステップＳ４）。次に制御部７が、１スーパー
フレーム区間であるか否かを判断し（ステップＳ５）、
１スーパーフレーム区間であれば、カウンタ判断部１６
が、カウンタ１４の値が一定値（例えば１０）を越えて
いるか否かを判断する（ステップＳ６）。越えていれ
ば、制御部７が、メモリ１３ｂに記憶されているＲＳＳ
Ｉの値を合計し、その値をカウンタ１４の値で割り算し
て、ＲＳＳＩの平均値とする（ステップＳ７）。次に制
御部７が、カウンタ１４をリセットすると共に、演算し
たＲＳＳＩの平均値を基地局に送信させて（ステップＳ
８）、このルーチンを終了する。なおステップＳ６にお
いて、カウンタ１４の値が一定値を越えていないと判断
すれば、電波状況が悪い状態であるので、制御部７が、
メモリ１３ｂに記憶されているＲＳＳＩの値とメモリ１
３ｃに記憶されているＲＳＳＩの値とを合計し、その値
を３６で割り算してＲＳＳＩの平均値とし（ステップＳ
９）、ステップＳ８に進む。またステップＳ５におい
て、１スーパーフレーム区間でないと判断すれば、平均
値算出のための３６回のＲＳＳＩ測定を完了していない
状態であるから、このルーチンを終了する。またステッ
プＳ２において、ＲＳＳＩがしきい値以上でないと判断
すれば、ステップＳ７における平均値の演算から除外す
るために、制御部７が、ＲＳＳＩをメモリ１３ｃに格納
し（ステップＳ１０）、ステップＳ５に進む。FIG. 2 is an explanatory diagram of a frame structure of transmission / reception data. Next, the essential points of the operation of the digital mobile telephone device will be described with reference to the flowchart of FIG. First, the control unit 7 sets a value of 20 within the receivable section from the top of the diversity section in the field strength (hereinafter referred to as “RSSI”) receivable section.
The RSSI receiving process is performed every ms (step S
1). Next, the threshold value judging unit 15 judges whether or not the RSSI is equal to or more than a predetermined threshold value which is a judgment value of the level deterioration (Step S2). The RSSI is stored in the memory 13b (step S
3). Next, the controller 7 increases the value of the counter 14 by 1 (step S4). Next, the control unit 7 determines whether or not it is one superframe section (step S5),
If it is one superframe section, the counter determining unit 16
However, it is determined whether or not the value of the counter 14 exceeds a certain value (for example, 10) (step S6). If it exceeds, the control unit 7 sends the RSS stored in the memory 13b.
The values of I are summed, and the sum is divided by the value of the counter 14 to obtain an average RSSI (step S7). Next, the control unit 7 resets the counter 14 and causes the base station to transmit the calculated average value of the RSSI (step S
8) End this routine. If it is determined in step S6 that the value of the counter 14 does not exceed a certain value, the state of the radio wave is poor, and the control unit 7
RSSI value stored in memory 13b and memory 1
3c is summed with the value of the RSSI stored therein, and the sum is divided by 36 to obtain an average value of the RSSI (step S3).
9) Go to step S8. If it is determined in step S5 that the period is not one superframe section, this routine ends because 36 times of RSSI measurement for calculating the average value have not been completed. If it is determined in step S2 that the RSSI is not equal to or larger than the threshold value, the control unit 7 stores the RSSI in the memory 13c in order to exclude the RSSI from the calculation of the average value in step S7 (step S10). move on.
【０００９】このように、ＲＳＳＩの３６回の測定中、
しきい値以上が１０回を越えていれば、しきい値以上の
ＲＳＳＩだけを用いてＲＳＳＩの平均値を求めるので、
常にしきい値未満のＲＳＳＩをも含めてＲＳＳＩの平均
値を求める従来装置と比較してＲＳＳＩの平均値が大き
くなる。また、しきい値以上が１０回以下であれば、し
きい値未満のＲＳＳＩをも含めてＲＳＳＩの平均値を求
めるので、本来検出すべきＲＳＳＩの低下を検出し得
る。したがって、通話をむやみに切る動作や、不必要な
ハンド・オフ動作を良好に防止できる。Thus, during the 36 measurements of RSSI,
If the number of times equal to or more than the threshold value exceeds 10 times, the average value of the RSSI is calculated using only the RSSI equal to or more than the threshold value.
The average value of the RSSI is larger than that of the conventional device that always obtains the average value of the RSSI including the RSSI below the threshold. If the number of times is equal to or more than the threshold value and is equal to or less than ten times, the average value of the RSSIs including the RSSIs less than the threshold value is obtained. Therefore, it is possible to satisfactorily prevent the operation of interrupting the call and the unnecessary hand-off operation.
【００１０】[0010]
【発明の効果】以上説明したように本発明によれば、移
動機が受信電波の電界強度を所定期間毎に所定回数測定
し、その平均値を基地局に報告するセルラー方式のデジ
タル移動電話装置において、移動機に、電界強度が所定
のしきい値以上であるか否かを判断するしきい値判断手
段と、しきい値判断手段により電界強度がしきい値以上
であると判断された回数が所定回数のうち一定回数以上
であるか否かを判断する回数判断手段と、回数判断手段
により電界強度がしきい値以上である回数が一定回数以
上であると判断されたときに、しきい値以上の電界強度
の平均値を演算する第１の演算手段と、回数判断手段に
より電界強度がしきい値以上である回数が一定回数未満
であると判断されたときに、全ての電界強度の平均値を
演算する第２の演算手段とを備え、第１および第２の演
算手段の演算結果を電界強度の平均値として基地局に報
告する構成としたので、電波が弱い地域においても、通
話をむやみに切る動作や、不必要なハンド・オフ動作を
良好に防止できる。As described above, according to the present invention, a cellular-type digital mobile telephone apparatus in which a mobile station measures the electric field intensity of a received radio wave a predetermined number of times at predetermined time intervals and reports the average value to a base station. A threshold value judging means for judging whether or not the electric field strength is not less than a predetermined threshold value; and a number of times that the electric field intensity is judged to be not less than the threshold value by the threshold value judging means. Means for determining whether or not is greater than or equal to a certain number of predetermined times, and a threshold when the number of times that the electric field strength is equal to or greater than the threshold value is greater than or equal to a certain number. A first calculating means for calculating an average value of the electric field strengths equal to or more than a value, and when the number of times that the electric field strength is equal to or more than the threshold value is judged to be less than a predetermined number by the number-of-times judging means, The second act of calculating the average value Means for reporting the calculation results of the first and second calculation means to the base station as an average value of the electric field strength. Hand-off operation can be satisfactorily prevented.
【図１】本発明の一実施例におけるデジタル移動電話装
置の移動機の構成図である。FIG. 1 is a configuration diagram of a mobile device of a digital mobile telephone device according to an embodiment of the present invention.
【図２】送受信データのフレーム構造の説明図である。FIG. 2 is an explanatory diagram of a frame structure of transmission / reception data.
【図３】本発明の一実施例におけるデジタル移動電話装
置の動作を説明するフローチャートである。FIG. 3 is a flowchart illustrating an operation of the digital mobile telephone device according to one embodiment of the present invention.
７ 制御部 １３ｂ メモリ １３ｃ メモリ １４ カウンタ １５ しきい値判断部 １６ カウンタ判断部 7 control unit 13b memory 13c memory 14 counter 15 threshold value judgment unit 16 counter judgment unit
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H04Q 7/00 - 7/38 H04B 7/24 - 7/26 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H04Q 7/ 00-7/38 H04B 7 /24-7/26
Claims (1)
毎に所定回数測定し、その平均値を基地局に報告するセ
ルラー方式のデジタル移動電話装置において、 前記移動機に、 前記電界強度が所定のしきい値以上であるか否かを判断
するしきい値判断手段と、 前記しきい値判断手段により電界強度がしきい値以上で
あると判断された回数が前記所定回数のうち一定回数以
上であるか否かを判断する回数判断手段と、 前記回数判断手段により電界強度がしきい値以上である
回数が一定回数以上であると判断されたときに、しきい
値以上の電界強度の平均値を演算する第１の演算手段
と、 前記回数判断手段により電界強度がしきい値以上である
回数が一定回数未満であると判断されたときに、全ての
電界強度の平均値を演算する第２の演算手段とを備え、
前記第１および第２の演算手段の演算結果を電界強度の
平均値として前記基地局に報告する構成としたことを特
徴とするデジタル移動電話装置。1. A cellular digital mobile telephone device in which a mobile device measures the electric field strength of a received radio wave a predetermined number of times at predetermined time intervals and reports an average value to a base station. Threshold value judging means for judging whether or not the electric field strength is equal to or more than a predetermined threshold value; A number-of-times judging means for judging whether or not the electric field strength is equal to or more than a threshold value, when the number of times that the electric field strength is equal to or more than the threshold value is judged to be a certain number of times or more, First calculating means for calculating an average value, and calculating the average value of all electric field strengths when the number of times that the electric field strength is equal to or more than the threshold value is determined to be less than a certain number of times by the number-of-times determining means. Second arithmetic means Provided,
A digital mobile telephone device, wherein the calculation results of the first and second calculation means are reported to the base station as an average value of the electric field strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04277230A JP3086548B2 (en) | 1992-10-15 | 1992-10-15 | Digital mobile phone equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04277230A JP3086548B2 (en) | 1992-10-15 | 1992-10-15 | Digital mobile phone equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06132881A JPH06132881A (en) | 1994-05-13 |
| JP3086548B2 true JP3086548B2 (en) | 2000-09-11 |
Family
ID=17580639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04277230A Expired - Lifetime JP3086548B2 (en) | 1992-10-15 | 1992-10-15 | Digital mobile phone equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3086548B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5784695A (en) * | 1996-05-14 | 1998-07-21 | Trw Inc. | Method and apparatus for handover control in a satellite based telecommunications system |
| JP2000083109A (en) * | 1998-07-07 | 2000-03-21 | Nakayo Telecommun Inc | Radio communication apparatus |
| JP2009302950A (en) * | 2008-06-13 | 2009-12-24 | Oki Electric Ind Co Ltd | Network system, information registration method, communication apparatus and communication program |
| WO2017126623A1 (en) | 2016-01-22 | 2017-07-27 | 京セラ株式会社 | Wireless terminal and processor |
-
1992
- 1992-10-15 JP JP04277230A patent/JP3086548B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06132881A (en) | 1994-05-13 |
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