JP2002335557A5 - Communication equipment, base stations, communication methods, and communication systems - Google Patents
Communication equipment, base stations, communication methods, and communication systems Download PDFInfo
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- 230000005684 electric field Effects 0.000 description 15
- 230000000051 modifying Effects 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- CLNMVBDOFHGIOJ-UHFFFAOYSA-N butyl 2-(4-chloro-2-methylphenoxy)acetate;pentyl 2-(2,4,5-trichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1C.CCCCCOC(=O)COC1=CC(Cl)=C(Cl)C=C1Cl CLNMVBDOFHGIOJ-UHFFFAOYSA-N 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001702 transmitter Effects 0.000 description 1
Description
【特許請求の範囲】
【請求項１】
複数のサブキャリアにより形成される制御チャネルを利用して通信制御を実行しつつ、自装置に割り当てられたトラフィックチャネルを利用してデータの送受を行う通信装置であって、
受信した制御チャネルの周波数軸方向にｎ（ｎは１を含む整数）分割したサブキャリア群それぞれの受信電界強度を測定する受信電界強度測定部と、
上記受信電界強度測定部で測定した受信電界強度を出力する出力部と
を含む通信装置。
【請求項２】
上記制御チャネルには、チャネルアロケーション情報を含み、
受信したチャネルアロケーション情報を更新して保持するチャネルアロケーションマップ部と、
上記チャネルアロケーションマップ部のチャネルアロケーション情報を基に、セルサーチチャネルを抽出するチャネル抽出部を有し、
上記受信電界強度測定部は、チャネル抽出部で抽出されたセルサーチチャネルの周波数軸方向にｎ分割されたサブキャリア群それぞれの受信電界強度を測定する
請求項１記載の通信装置。
【請求項３】
上記制御チャネルには、複数の通信装置に共通の制御情報の伝送に用いられるシングル周波数ネットワーク共通チャネルを含む
請求項１記載の通信装置。
【請求項４】
上記制御チャネルには、複数の通信装置に共通のチャネルアロケーション情報を含む制御情報の伝送に用いられるシングル周波数ネットワーク共通チャネルを含む
請求項２記載の通信装置。
【請求項５】
上記制御チャネルには、少なくとも基地局に割当てられたチャネルのうち、いずれのチャネルのいずれのタイムスロットを受信すべきかを指示する使用チャネル情報を含む固定周波数リユース共通チャネルを含む
請求項１記載の通信装置。
【請求項６】
上記制御チャネルには、少なくとも基地局に割当てられたチャネルのうち、いずれのチャネルのいずれのタイムスロットを受信すべきかを指示する使用チャネル情報を含む固定周波数リユース共通チャネルを含む
請求項２記載の通信装置。
【請求項７】
複数のサブキャリアにより形成される制御チャネルを利用して通信制御を実行しつつ、上記制御チャネルおよびトラフィックチャネルを出力する基地局であって、
上記制御チャネルを、周波数軸方向にｎサブキャリア毎に分割し、分割したサブキャリアに基地局を割当てて出力する出力装置
を含む基地局。
【請求項８】
複数のサブキャリアにより形成される制御チャネルを利用して通信制御を実行しつつ、自装置に割り当てられたトラフィックチャネルを利用してデータの送受を行う通信方法であって、
受信した制御チャネルの周波数軸方向にｎ（ｎは１を含む整数）分割したサブキャリア群それぞれの受信電界強度を測定するステップと、
上記測定した受信電界強度を出力するステップと
を含む通信方法。
【請求項９】
複数のサブキャリアにより形成される制御チャネルを利用して通信制御を実行しつつ、上記制御チャネルおよびトラフィックチャネルを出力し、上記制御チャネルを、周波数軸方向にｎサブキャリア毎に分割し、分割したサブキャリアに基地局を割当てて出力する出力装置を含む基地局と、
上記基地局からの出力チャネルを受信し、受信した制御チャネルの周波数軸方向にｎ（ｎは１を含む整数）分割したサブキャリア群それぞれの受信電界強度を測定する受信電界強度測定部と、上記受信電界強度測定部で測定した受信電界強度を出力する出力部と含む通信装置と
を有する通信システム。
[Claims]
[Claim 1]
A communication device that sends and receives data using the traffic channel assigned to its own device while executing communication control using a control channel formed by a plurality of subcarriers.
A receiving electric field strength measuring unit that measures the received electric field strength of each of the subcarrier groups divided into n (n is an integer including 1) in the frequency axis direction of the received control channel.
A communication device including an output unit that outputs the received electric field strength measured by the received electric field strength measuring unit.
2.
The control channel includes channel allocation information.
The channel allocation map section that updates and retains the received channel allocation information,
It has a channel extraction unit that extracts cell search channels based on the channel allocation information of the channel allocation map unit.
The communication device according to claim 1, wherein the received electric field strength measuring unit measures the received electric field strength of each of the subcarrier groups n-divided in the frequency axis direction of the cell search channel extracted by the channel extraction unit.
3.
The communication device according to claim 1, wherein the control channel includes a single frequency network common channel used for transmitting control information common to a plurality of communication devices.
4.
The communication device according to claim 2, wherein the control channel includes a single frequency network common channel used for transmitting control information including channel allocation information common to a plurality of communication devices.
5.
The communication according to claim 1, wherein the control channel includes a fixed frequency reuse common channel including at least a used channel information indicating which time slot of which channel should be received among the channels assigned to the base station. apparatus.
6.
The communication according to claim 2, wherein the control channel includes a fixed frequency reuse common channel including at least a used channel information indicating which time slot of which channel should be received among the channels assigned to the base station. apparatus.
7.
A base station that outputs the control channel and traffic channel while executing communication control using a control channel formed by a plurality of subcarriers.
A base station including an output device that divides the control channel into n subcarriers in the frequency axis direction and assigns a base station to the divided subcarriers to output.
8.
It is a communication method that sends and receives data using the traffic channel assigned to the own device while executing communication control using the control channel formed by multiple subcarriers.
A step of measuring the received electric field strength of each of the subcarrier groups divided into n (n is an integer including 1) in the frequency axis direction of the received control channel, and
With the step of outputting the measured received electric field strength
Communication methods including.
9.
While executing communication control using a control channel formed by a plurality of subcarriers, the control channel and the traffic channel are output, and the control channel is divided into n subcarriers in the frequency axis direction and divided. A base station including an output device that assigns a base station to a subcarrier and outputs it,
A reception electric field strength measuring unit that receives an output channel from the base station and measures the reception electric field strength of each of the subcarrier groups divided into n (n is an integer including 1) in the frequency axis direction of the received control channel, and the above. An output unit that outputs the received electric field strength measured by the received electric field strength measuring unit and a communication device including the output unit
Communication system having.
制御センタＣＴＲでは、移動端末局Ｍ１から送信された電界強度測定結果が受信部２３で受信され、受信電界強度測定結果情報が基地局割当部２４に供給される。
基地局割当制御部２４では、受信部２３で受信された受信電界強度測定結果に基づいて移動端末局が最適な基地局へ割当てられ（選定され）、位置登録部２５に登録される。
そして、ルータ２６によりは、位置登録部２５の情報を基に移動端末局Ｍ１へのトラフィック（パケット）が最寄りの選定された基地局に転送される。
In the control center CTR, the electric field strength measurement result transmitted from the mobile terminal station M1 is received by the receiving unit 23, and the received electric field strength measurement result information is supplied to the base station allocation unit 24.
In the base station allocation control unit 24, the mobile terminal station is assigned (selected) to the optimum base station based on the reception electric field strength measurement result received by the reception unit 23, and is registered in the location registration unit 25.
Then, the router 26 transfers the traffic (packet) to the mobile terminal station M1 to the nearest selected base station based on the information of the location registration unit 25.
パイロット信号挿入部１０４は、シンボルマッピング部１０３から供給された同相Ｉチャネルに“１”、直交Ｑチャネルに“０”のパイロット信号を挿入し、シリアル−パラレル変換部１０５に出力する。
パイロット信号挿入部１０４が挿入するパイロット信号は、移動端末局の受信装置で、伝送路推定、位相補正に使用されるほか、一次変調方式に１６ＱＡＭなどの振幅に情報を乗せる方式の変調信号を復調する場合、振幅の基準となるしきい値の算出に用いられる。
The pilot signal insertion unit 104 inserts a pilot signal of "1" into the in-phase I channel supplied from the symbol mapping unit 103 and "0" into the orthogonal Q channel, and outputs the pilot signal to the serial-parallel conversion unit 105.
The pilot signal inserted by the pilot signal insertion unit 104 is used for transmission path estimation and phase correction in the receiving device of the mobile terminal station, and also demodulates the modulated signal of the method of adding information to the amplitude such as 16QAM to the primary modulation method. If so, it is used to calculate the threshold value that serves as the reference for the amplitude.
復調部２１２は、基地局送信装置１００の変調方式に対応した復調を行い、デインタリーブ部２１３に出力する。
変調方式が１６ＱＡＭなどの振幅（複素平面上で言えばベクトルの大きさ）に情報を載せる変調方式の場合は、基準となる受信電力（受信パイロット信号のベクトルの大きさ）の情報を伝送路推定部２１０より得て、この値を基準にして複調を行う。
The demodulation unit 212 performs demodulation corresponding to the modulation method of the base station transmission device 100, and outputs the demodulation unit 212 to the deinterleave unit 213.
When the modulation method is a modulation method in which information is placed on the amplitude (the magnitude of the vector in the complex plane) such as 16QAM, the information of the reference received power (the magnitude of the vector of the received pilot signal) is estimated as the transmission path. Obtained from unit 210, compounding is performed based on this value.
デインタリーブ部２１３は、復調部２１２で復調された信号をデインターリーブし、復号部２１４に出力する。 Deinterleaving section 213 Deinta leave the signal demodulated by the demodulator 212, and outputs to the decoding unit 214.
復号部２１４、復調され、デインターリーブされた信号を受けて、たとえばビタビ複号し、復号信号を得る。 Decoding section 214, demodulated and subjected to Deinta leave signal, for example, Viterbi decoding to obtain decoded signal.
送信ウィンドニング部１０９では、タイムスロット生成部１０８で生成されたタイムスロットに対して、タイムスロット期間ＴＳＬＴの先頭と末尾に、帯域外への不要なスペクトル漏洩を防ぐためにランプタイムｄＴｘを設けるウィンドニング処理が施され、フレーム生成部１１０に出力される。 In the transmission windowing unit 109, a lamp time dTx is provided at the beginning and end of the time slot period TSLT for the time slot generated by the time slot generation unit 108 in order to prevent unnecessary spectrum leakage to the outside of the band. It is subjected to a ning process and output to the frame generation unit 110.
Ｄ／Ａ変換部１１３では、フレーム生成部１１０で生成されたデジタルフレームデータをアナログデータに変換された後、直交変調部１１４で所定の変調方式に従って直交変調され、周波数変換部１１５で所要の周波数帯に周波数変換されて送信される。 In the D / A conversion unit 113, after the digital frame data generated by the frame generation unit 110 is converted into analog data , the quadrature modulation unit 114 performs quadrature modulation according to a predetermined modulation method, and the frequency conversion unit 115 performs a required frequency. The frequency is converted into a band and transmitted.
復調部２１２では、基地局送信装置の変調方式に対応した復調が行われる。変調方式が１６ＱＡＭなどの振幅（複素平面上で言えばベクトルの大きさ）に情報を載せる変調方式の場合は、基準となる受信電力（受信パイロット信号のベクトルの大きさ）の情報が伝送路推定部２１０より得られ、この値を基準にして複調が行われる。
復調部２１２で復調された信号は、デインターリーブ部２１３でデインターリーブされた後に、復号部２１４でビタビ複号される。
The demodulation unit 212 performs demodulation corresponding to the modulation method of the base station transmitter. When the modulation method is a modulation method in which information is placed on the amplitude (the magnitude of the vector in the complex plane) such as 16QAM, the information of the reference received power (the magnitude of the vector of the received pilot signal) is the transmission path estimation. Obtained from section 210, compounding is performed based on this value.
Signal demodulated by the demodulator 212, after being Deinta leave in deinterleaving unit 213, it is Viterbi decoding in decoding section 214.
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| JP2001137366A JP2002335557A (en) | 2001-05-08 | 2001-05-08 | Communication equipment, base station, communication controller and communication system using them |
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| JP2001137366A JP2002335557A (en) | 2001-05-08 | 2001-05-08 | Communication equipment, base station, communication controller and communication system using them |
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| JP2002335557A JP2002335557A (en) | 2002-11-22 |
| JP2002335557A5 true JP2002335557A5 (en) | 2008-05-08 |
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| JP4803955B2 (en) * | 2003-08-28 | 2011-10-26 | 京セラ株式会社 | COMMUNICATION CONTROL DEVICE, COMMUNICATION DEVICE, AND COMMUNICATION SYSTEM |
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| JP4558452B2 (en) * | 2004-11-09 | 2010-10-06 | パナソニック株式会社 | Multi-carrier communication apparatus and cell selection method |
| JP2006191533A (en) * | 2004-12-09 | 2006-07-20 | Matsushita Electric Ind Co Ltd | Communication terminal equipment, control station, and multicarrier communication method |
| CN101073215A (en) * | 2004-12-22 | 2007-11-14 | 松下电器产业株式会社 | Wireless communication method, communication terminal apparatus, and wireless communication system |
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| US7782821B2 (en) * | 2005-03-28 | 2010-08-24 | Panasonic Corporation | Multi-carrier communication device and multi-carrier communication method |
| JP4703253B2 (en) * | 2005-05-06 | 2011-06-15 | パナソニック株式会社 | Communication terminal device |
| US8125961B2 (en) | 2005-10-25 | 2012-02-28 | Qualcomm Incorporated | Four way handshake for robust channel estimation and rate prediction |
| JP4869256B2 (en) * | 2006-01-13 | 2012-02-08 | パナソニック株式会社 | Radio communication base station apparatus and synchronization channel signal transmission method |
| JP4587965B2 (en) * | 2006-02-01 | 2010-11-24 | シャープ株式会社 | Mobile station apparatus, base station apparatus, common control channel mapping method and reception method, program, and recording medium |
| JP4627801B2 (en) * | 2006-03-17 | 2011-02-09 | 富士通株式会社 | Base station apparatus, mobile station apparatus, and subcarrier allocation method |
| JP4929895B2 (en) * | 2006-07-24 | 2012-05-09 | 富士通株式会社 | Transmission apparatus and subframe creation method |
| CN101137135B (en) | 2006-09-01 | 2011-06-29 | 电信科学技术研究院 | Base station and method for transmitting control scheduling information |
| JP2008172541A (en) | 2007-01-11 | 2008-07-24 | Matsushita Electric Ind Co Ltd | Base station device, communication terminal device, communicating system, and communication method |
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| JPH11113044A (en) * | 1997-09-30 | 1999-04-23 | Sony Corp | Communication method, transmission method, reception method base station and terminal equipment |
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