JP2010081299A - Communication station of mobile communication system, frequency change control method, and transceiver - Google Patents
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Abstract
Description
本発明は、ＣＤＭＡ移動通信システムの通信局、その送受信機及び周波数変更制御方法に関する。 The present invention relates to a communication station of a CDMA mobile communication system, a transceiver thereof, and a frequency change control method.
関連技術によるＴＤ−ＣＤＭＡ（Time
Division Code Division Multiple Access）方式の移動体通信システムにおける基地局に関する技術が、例えば、特許文献１（特開２０００−３４１２１２号公報）、または特許文献２（特開２００４−４０１８７号公報）で示されている。
TD-CDMA (Time
A technology related to a base station in a division code division multiple access (MOB) communication system is disclosed in, for example, Patent Document 1 (Japanese Patent Laid-Open No. 2000-341212) or Patent Document 2 (Japanese Patent Laid-Open No. 2004-40187). ing.
関連技術によるＣＤＭＡ基地局の構成例を図３に示す。 A configuration example of a CDMA base station according to the related art is shown in FIG.
送信無線部３９において、周波数変更時等による送信出力断が行われた場合、移動端末局側において基地局からの送信出力レベル低下を検出し、回線品質維持を目的として基地局送信出力レベルを増加させるためのＴＰＣ（Transmission Power Control）信号を移動端末局側から基地局側に送信する。 When the transmission output is interrupted by the transmission radio unit 39 due to frequency change or the like, the mobile terminal station detects a decrease in the transmission output level from the base station and increases the base station transmission output level for the purpose of maintaining the channel quality. A TPC (Transmission Power Control) signal is transmitted from the mobile terminal station side to the base station side.
移動端末局から送信された信号は、基地局のアンテナ４０で受信され、送受信分離部４１を介して受信無線部４２に入力される。
A signal transmitted from the mobile terminal station is received by the antenna 40 of the base station and input to the
受信無線部４２において、受信信号についての低雑音増幅器による信号増幅処理や帯域通過フィルタによる帯域制限処理と、局部発振器発生の信号による無線周波数から中間周波数への周波数変換が行われると共に、自動利得制御回路によって適正な信号レベルに補正された後、ベースバンドに周波数変換される。
In the
ベースバンドに周波数変換された受信信号は、アナログ／デジタル変換器によりデジタル信号となる。受信デジタル信号は、逆拡散部４３において逆拡散処理がなされ、復調部４４において復調される。 The received signal frequency-converted to the baseband is converted into a digital signal by the analog / digital converter. The received digital signal is despread in the despreading unit 43 and demodulated in the demodulation unit 44.
上りＴＰＣビット抽出部４５において移動端末局から送られたＴＰＣビットが復調信号から抽出され、送信電力制御部４６に出力される。送信電力制御部４６では、ＴＰＣビットに基づいて送信電力の増加を決定し、送信無線部３９に対して送信出力増加の制御情報を出力する。
関連技術のＣＤＭＡ移動体通信システムでは、移動端末局側にて基地局からの送信出力レベル低下を検出した場合、回線品質維持を目的に基地局送信出力レベルを増加させるためのＴＰＣ信号を移動端末局側から基地局側に送信する。 In the related art CDMA mobile communication system, when the mobile terminal station detects a decrease in the transmission output level from the base station, the mobile terminal transmits a TPC signal for increasing the base station transmission output level in order to maintain the channel quality. Transmit from the station side to the base station side.
このＴＰＣ信号による送信出力制御のスピードは非常に高速である。このため、関連技術による制御方式では周波数変更時などに伴う基地局送受信出力の瞬断が行われた場合、その時間が周波数シンセサイザーの所要ロック時間である数ｍｓオーダとなることから、この間に数ｄＢの基地局送信出力上昇ＴＰＣ制御が行われることになり、基地局送信復帰時には異常な出力が発生してしまう。 The speed of transmission output control by this TPC signal is very high. For this reason, when a base station transmission / reception output is interrupted due to a frequency change or the like in the control method based on the related technology, the time is on the order of several ms, which is the required lock time of the frequency synthesizer. The base station transmission output increase TPC control of dB is performed, and an abnormal output occurs when the base station transmission returns.
上記のように、関連技術のＣＤＭＡ基地局においては、送信出力断の間、受信信号として基地局送信出力を増加させるためのＴＰＣ信号が入力されることで、送信出力断復帰後に異常送信出力状態となり、通信環境において、回線品質の維持ができないという課題を有していた。 As described above, in the CDMA base station of the related technology, the TPC signal for increasing the base station transmission output is input as the reception signal while the transmission output is interrupted, so that the abnormal transmission output state after the transmission output disconnection is recovered. Thus, there is a problem that the line quality cannot be maintained in the communication environment.
（発明の目的）
本発明の目的は、システムとして管理された送受信無信号期間に周波数変更を行うことにより、本来機能すべきでない通信局の送信出力を上昇させるＴＰＣ制御動作を抑圧することを可能にする
(Object of invention)
An object of the present invention is to make it possible to suppress a TPC control operation that increases a transmission output of a communication station that should not function by performing a frequency change during a transmission / reception no-signal period managed as a system.
本発明による通信局は、移動体通信システムの通信局において、送受信機に、周波数変更に伴う送受信出力信号断時に、送受信切換えを行うための送受信切換信号の出力後に、送信周波数変更信号又は受信周波数変更信号を出力するタイミング調整手段を含む。 The communication station according to the present invention is a communication station of a mobile communication system, wherein a transmission frequency change signal or a reception frequency is output to a transmitter / receiver after a transmission / reception switching signal for switching transmission / reception when a transmission / reception output signal accompanying frequency change is interrupted. Timing adjustment means for outputting a change signal is included.
本発明による周波数変更制御方法は、移動体通信システムの通信局が備える送受信機における周波数変更制御方法であって、周波数変更に伴う送受信出力信号断時に、送受信切換えを行うための送受信切換信号の出力後に、送信周波数変更信号又は受信周波数変更信号を出力するタイミング調整を行う。 A frequency change control method according to the present invention is a frequency change control method in a transceiver provided in a communication station of a mobile communication system, and outputs a transmission / reception switching signal for performing transmission / reception switching when a transmission / reception output signal is interrupted due to the frequency change. Later, timing adjustment for outputting a transmission frequency change signal or a reception frequency change signal is performed.
本発明による送受信機は、移動体通信システムの通信局が備える送受信機であって、周波数変更に伴う送受信出力信号断時に、送受信切換えを行うための送受信切換信号の出力後に、送信周波数変更信号又は受信周波数変更信号を出力するタイミング調整手段を含む。 A transceiver according to the present invention is a transceiver provided in a communication station of a mobile communication system, and when a transmission / reception output signal is interrupted due to a frequency change, after a transmission / reception switching signal for performing transmission / reception switching is output, Timing adjustment means for outputting a reception frequency change signal is included.
本発明によれば、システムとして管理された送受信無信号期間に周波数変更を行うため、周波数変更に伴う送受信出力信号断時に、通信局の送信出力を上昇させるＴＰＣ制御動作を抑圧することができる。 According to the present invention, since the frequency is changed during the transmission / reception no-signal period managed as the system, it is possible to suppress the TPC control operation for increasing the transmission output of the communication station when the transmission / reception output signal is interrupted due to the frequency change.
（第１の実施の形態）
図１は、本発明の第１の実施の形態による基地局装置の全体構成を示すブロック図である。
(First embodiment)
FIG. 1 is a block diagram showing an overall configuration of a base station apparatus according to the first embodiment of the present invention.
基地局装置は、主信号発生部１、ＣＤＭＡ変調部２、拡散部３、送信デジタル無線部４、デジタル／アナログ変換部５、送信周波数変換部６、送信アナログ無線部７、アンテナ８、送受信切替部９、受信アナログ無線部１０、受信周波数変換部１１、アナログ／デジタル変換部１２、受信デジタル無線部１３、逆拡散部１４、ＣＤＭＡ復調部１５、主信号処理部１６、上りＴＣＰビット抽出部１７、送信電力制御部１８、タイミング調整部１９を含む。
The base station apparatus includes a main signal generation unit 1, a CDMA modulation unit 2, a spreading unit 3, a transmission
本実施の形態は、ＴＤ−ＣＤＭＡ基地局装置の送受信機において、送受信周波数変更等による送受信入出力断時に、本来機能すべきでないＴＤ−ＳＣＤＭＡシステムとしての基地局の送信出力上昇させるＴＰＣ制御動作を抑圧することを可能にする。 In this embodiment, in a transceiver of a TD-CDMA base station apparatus, when a transmission / reception input / output is interrupted due to a transmission / reception frequency change or the like, a TPC control operation for increasing the transmission output of a base station as a TD-SCDMA system that should not function originally is performed. It makes it possible to suppress.
図１において、上りＴＰＣビット抽出部１７は、受信信号から移動端末局からのＴＰＣ信号を抽出する。送信電力制御部１８は、抽出されたＴＰＣ信号のＴＰＣビットから基地局送信出力レベルの増加/減少の要否を判断し、送信側の主信号発生部１に対する出力レベルの制御を行う。 In FIG. 1, an uplink TPC bit extraction unit 17 extracts a TPC signal from a mobile terminal station from a received signal. The transmission power control unit 18 determines whether or not the base station transmission output level needs to be increased / decreased from the TPC bits of the extracted TPC signal, and controls the output level for the main signal generating unit 1 on the transmission side.
図２は、本実施の形態が備えるタイミング調整部１９による制御動作を示している。 FIG. 2 shows a control operation by the timing adjustment unit 19 provided in the present embodiment.
タイミング調整部１９は、送信周波数変換部６へ送出される送信周波数変更信号及び受信周波数変換部１１へ送出される受信周波数変更信号とを、送受信切替部９へ送出される送受信切替制御信号のタイミングに対して、調整可能とする回路である。このタイミング調整部１９によって、送信信号の無いＴｉｍｅ Ｓｌｏｔ（以下ＴＳと略す。）期間に送信周波数変更を、また受信信号の無いＴＳ期間に受信周波数を変更することにより、本来機能すべきでない基地局送信出力を上昇させるＴＰＣ制御動作を最小に抑圧することができる。 The timing adjustment unit 19 sends the transmission frequency change signal sent to the transmission frequency conversion unit 6 and the reception frequency change signal sent to the reception frequency conversion unit 11 to the timing of the transmission / reception switching control signal sent to the transmission / reception switching unit 9. On the other hand, it is a circuit that can be adjusted. A base station that should not function originally by changing the transmission frequency during a time slot (hereinafter abbreviated as TS) without a transmission signal and changing the reception frequency during a TS period without a reception signal by the timing adjustment unit 19. The TPC control operation that increases the transmission output can be suppressed to the minimum.
タイミング調整部１９は、入力された送受信周波数変更信号に対して、システムにて管理された送受信切替信号のうち、送信（ＤＬ）ルート→受信（ＵＬ）ルートの送受信切替信号まで、送信周波数変更信号を保持すると共に、送信（ＤＬ）ルート→受信（ＵＬ）ルートの送受信切替信号の出力後、送信周波数変更信号を送信周波数変換部６へ出力する（遅延時間１の区間）。 The timing adjustment unit 19 transmits the transmission frequency change signal from the transmission (DL) route to the reception (UL) transmission / reception switching signal among the transmission / reception switching signals managed by the system with respect to the input transmission / reception frequency changing signal. And a transmission frequency change signal is output to the transmission frequency converter 6 after the transmission / reception switching signal from the transmission (DL) route to the reception (UL) route is output (interval of delay time 1).
また、同様に、タイミング調整部１９は、受信（ＵＬ）ルート→送信（ＤＬ）ルートの送受信切替信号まで、受信周波数変更信号を保持すると共に、受信（ＵＬ）ルート→送信（ＤＬ）ルートの送受信切替信号出力後、受信周波数変更信号を受信周波数変換部１１へ出力する（遅延時間２の区間）。 Similarly, the timing adjustment unit 19 holds the reception frequency change signal up to the transmission / reception switching signal from the reception (UL) route to the transmission (DL) route and transmits / receives the reception (UL) route to the transmission (DL) route. After the switching signal is output, the reception frequency change signal is output to the reception frequency conversion unit 11 (interval of delay time 2).
以上本実施の形態の構成を述べたが、上記説明した以外の構成要素については、本発明の技術分野における当業者にとってよく知られており、また本発明とは直接関係しないので、その詳細は省略する。 Although the configuration of the present embodiment has been described above, the components other than those described above are well known to those skilled in the art of the present invention and are not directly related to the present invention. Omitted.
（第１の実施の形態の動作）
まず、説明を分かり易くするために、周波数変更時の送受信出力信号断の必要性について説明する。
(Operation of the first embodiment)
First, in order to make the explanation easy to understand, the necessity of disconnecting the transmission / reception output signal when changing the frequency will be described.
図１において、送信周波数変換部６又は受信周波数変換部１１の周波数を変更する場合、シンセサイザーが、旧周波数から新周波数へロックするまでの所要時間（過渡期間）としては数ｍｓが必要となる。この過渡期間においては、周波数の状態が不安定であり、かつ意図されない周波数に設定されていることから、送受信信号をその期間（過渡期間）中停止（断）しておく必要が生じる。 In FIG. 1, when changing the frequency of the transmission frequency conversion unit 6 or the reception frequency conversion unit 11, the required time (transition period) until the synthesizer locks from the old frequency to the new frequency requires several ms. During this transition period, the frequency state is unstable and is set to an unintended frequency, so that it is necessary to stop (disconnect) the transmission / reception signal during that period (transition period).
一方、送受信信号が存在する期間に強制的に送受信出力を断とした場合、移動端末局から基地局の送信出力レベルの増加を要求するＴＰＣ制御が動作する。 On the other hand, when the transmission / reception output is forcibly turned off during a period in which a transmission / reception signal exists, TPC control for requesting an increase in the transmission output level of the base station from the mobile terminal station operates.
ここで、図１を用いてＴＰＣ制御の動作について説明する。 Here, the operation of the TPC control will be described with reference to FIG.
図１において、移動端末局から送信された信号は、アンテナ８で受信され、送受信切替部９を介して受信アナログ無線部１０に入力される。 In FIG. 1, a signal transmitted from a mobile terminal station is received by an antenna 8 and input to a reception analog radio unit 10 via a transmission / reception switching unit 9.
受信アナログ無線部１０において、低雑音増幅器による信号増幅処理、帯域通過フィルタによる帯域制限処理等が行われ、受信周波数変換部１１においては、局部発振器発生の信号による無線周波数から中間周波数への周波数変換処理が行われる。また、自動利得制御回路等により、適正な信号レベルに補正された後、ベースバンドに周波数変換される。 The reception analog radio unit 10 performs signal amplification processing by a low noise amplifier, band limitation processing by a band pass filter, and the like, and the reception frequency conversion unit 11 performs frequency conversion from a radio frequency to an intermediate frequency by a signal generated by a local oscillator. Processing is performed. Further, after being corrected to an appropriate signal level by an automatic gain control circuit or the like, the frequency is converted to baseband.
ベースバンドに周波数変換された受信信号は、アナログ／デジタル変換部１２によって受信デジタル信号に変換される。この受信デジタル信号は、逆拡散部１４において逆拡散され、ＣＤＭＡ復調部１５において復調される。 The received signal frequency-converted to the baseband is converted into a received digital signal by the analog / digital converter 12. The received digital signal is despread by the despreading unit 14 and demodulated by the CDMA demodulation unit 15.
上りＴＰＣビット抽出部１７において、復調された信号から移動端末局から送られたＴＰＣビットが抽出される。このＴＰＣビットは、送信電力制御部１８に出力される。送信電力制御部１８は、受け取ったＴＰＣビットに基づいて送信電力を決定し、主信号発生部１に対して送信出力レベルを制御する（送信出力レベルを増加させる）制御情報を出力する。 The uplink TPC bit extraction unit 17 extracts TPC bits sent from the mobile terminal station from the demodulated signal. The TPC bit is output to the transmission power control unit 18. The transmission power control unit 18 determines transmission power based on the received TPC bits, and outputs control information for controlling the transmission output level (increasing the transmission output level) to the main signal generation unit 1.
本実施の形態による基地局装置は、周波数変更時に送受信出力信号が断となった場合に、上述したＴＰＣ制御を実行させることなく周波数変更処理を行えるように構成している。 The base station apparatus according to the present embodiment is configured such that frequency change processing can be performed without executing the TPC control described above when the transmission / reception output signal is interrupted when the frequency is changed.
図２を用いて、上記説明したようなＴＰＣ制御を実行させることなく、周波数変更を行う本実施の形態の動作について説明する。 The operation of the present embodiment for changing the frequency without executing the TPC control as described above will be described with reference to FIG.
図２において、ＴＤ−ＣＤＭＡ方式は、送受信信号のタイムチャートに示すように５ｍｓのＳｕｂ−Ｆｒａｍｅ信号の中に送信（ＤＬ）ルート→受信（ＵＬ）ルート切り替えが、また受信（ＵＬ）ルート→送信（ＤＬ）ルート切り替えが各１回ずつ行われる時分割多重通信方式である。 In FIG. 2, in the TD-CDMA system, the transmission (DL) route → reception (UL) route is switched in the 5 ms Sub-Frame signal as shown in the time chart of the transmission / reception signal, and the reception (UL) route → transmission. (DL) A time division multiplex communication system in which route switching is performed once each.
今、送受信周波数変更信号が、あるＳｕｂ−Ｆｒａｍｅ信号のＴＳ６（ＤＬ）の時間にタイミング調整部１９に入力された場合、本実施の形態のタイミング調整部１９は、送信（ＤＬ）ルート→受信（ＵＬ）ルートの送受信切替信号までは、送信周波数変更信号を保持すると共に、送信（ＤＬ）ルート→受信（ＵＬ）ルートの送受信切替信号出力後、送信周波数変更信号を送信周波数変換部６へ出力する（遅延時間1の区間）。 When the transmission / reception frequency change signal is input to the timing adjustment unit 19 at time TS6 (DL) of a certain sub-frame signal, the timing adjustment unit 19 according to the present embodiment transmits (DL) route → reception ( The transmission frequency change signal is held until the transmission / reception switching signal of the UL) route, and the transmission frequency change signal is output to the transmission frequency conversion unit 6 after the transmission / reception switching signal of the transmission (DL) route → reception (UL) route is output. (Interval with delay time 1).
すなわち、タイミング調整部１９は、送受信周波数変更信号が入力された場合に、すぐに送信周波数変更を出力せずに、遅延時間１の間送信周波数変更信号を保持し、送信（ＤＬ）ルート→受信（ＵＬ）ルートの送受信切替信号の出力直後に、送信周波数変更信号を出力する。 That is, when the transmission / reception frequency change signal is input, the timing adjustment unit 19 does not immediately output the transmission frequency change but holds the transmission frequency change signal for a delay time of 1, and transmits (DL) route to reception. (UL) A transmission frequency change signal is output immediately after the transmission / reception switching signal of the route is output.
これにより、送信側の周波数切り替えは、システム管理された送信信号無信号の期間ＴＳにて行われるため、ＴＰＣ制御動作は行われない。 Thereby, the frequency switching on the transmission side is performed in the period TS of no transmission signal managed by the system, and thus the TPC control operation is not performed.
同様に、タイミング調整部１９は、受信（ＵＬ）ルート→送信（ＤＬ）ルートの送受信切替信号までは、受信周波数変更信号を保持すると共に、受信（ＵＬ）ルート→送信（ＤＬ）ルートの送受信切替信号出力後、受信周波数変更信号を受信周波数変換部１１へ出力する（遅延時間２の区間）。 Similarly, the timing adjustment unit 19 holds the reception frequency change signal until the transmission / reception switching signal from the reception (UL) route to the transmission (DL) route, and the transmission / reception switching from the reception (UL) route to the transmission (DL) route. After the signal is output, the reception frequency change signal is output to the reception frequency conversion unit 11 (interval of delay time 2).
すなわち、タイミング調整部１９は、送受信周波数変更信号が入力された場合に、すぐに受信周波数変更を出力せずに、遅延時間２の間受信周波数変更信号を保持し、受信（ＵＬ）ルート→送信（ＤＬ）ルートの送受信切替信号の出力直後に、受信周波数変更信号を出力する。 That is, when the transmission / reception frequency change signal is input, the timing adjustment unit 19 does not immediately output the reception frequency change, but holds the reception frequency change signal for the delay time 2 and receives (UL) route → transmission. Immediately after the output of the (DL) route transmission / reception switching signal, the reception frequency change signal is output.
ここでも、受信側の周波数切り替えは、システム管理された受信信号無信号の期間ＴＳにて行われるため、ＴＰＣ制御動作は行われない。 Here too, the frequency switching on the receiving side is performed in the period TS of no received signal managed by the system, and therefore the TPC control operation is not performed.
なお、図２に示す動作例では、送受信周波数変更信号が、ＴＳ６（ＤＬ）の時間にタイミング調整部１９に入力された場合を記したが、ＴＳ１（ＵＬ）の場合には、先に受信（ＵＬ）ルート→送信（ＤＬ）ルートの送受信切替信号にて受信周波数変更が行われ、その後送信（ＤＬ）ルート→受信（ＵＬ）ルートの送受信切替信号にて送信周波数変更が行われることも同様である。 In the operation example shown in FIG. 2, the case where the transmission / reception frequency change signal is input to the timing adjustment unit 19 at the time of TS6 (DL) is described, but in the case of TS1 (UL), the reception ( Similarly, the reception frequency is changed by the transmission / reception switching signal from the UL (route) to the transmission (DL) route, and then the transmission frequency is changed by the transmission / reception switching signal from the transmission (DL) route to the reception (UL) route. is there.
（本実施の形態による効果）
以上説明したように、第１の実施の形態においては、システムとして管理された送受信無信号期間に周波数変更を行うことができるため、周波数変更に伴う送受信出力信号断時に、本来機能すべきでない通信局の送信出力を上昇させるＴＰＣ制御動作を抑圧することができる。これにより、送信復帰後の通信環境において、基地局送信出力を安定化することができ、回線品質の信頼性を大幅に向上させることが可能となる。
(Effects of this embodiment)
As described above, in the first embodiment, since the frequency can be changed during the transmission / reception no-signal period managed as the system, the communication that should not function originally when the transmission / reception output signal is interrupted due to the frequency change. The TPC control operation that increases the transmission output of the station can be suppressed. As a result, the base station transmission output can be stabilized in the communication environment after the transmission is restored, and the reliability of the line quality can be greatly improved.
（他の実施の形態）
上記第１の実施の形態では、送信機と受信機が一体となった構成例について説明したが、他の実施の形態として個別の送信機及び受信機を備える構成であっても、各機器を協調して制御することにより、上述した第１の実施の形態と同様の効果が得られることは明らかである。
(Other embodiments)
In the first embodiment described above, the configuration example in which the transmitter and the receiver are integrated has been described. However, as another embodiment, even if the configuration includes individual transmitters and receivers, It is clear that the same effects as those of the first embodiment described above can be obtained by controlling in cooperation.
また、第１の実施の形態では、送信周波数変換部６及び受信周波数変換部１１をアナログ部として説明したが、他の実施の形態としてデジタル部において周波数変更を行う場合も同様の効果を実現することができる。 In the first embodiment, the transmission frequency conversion unit 6 and the reception frequency conversion unit 11 have been described as analog units. However, the same effect can be achieved when the frequency is changed in the digital unit as another embodiment. be able to.
以上好ましい実施の形態と実施例をあげて本発明を説明したが、本発明は必ずしも、上記実施の形態及び実施例に限定されるものでなく、その技術的思想の範囲内において様々に変形して実施することができる。 Although the present invention has been described with reference to the preferred embodiments and examples, the present invention is not necessarily limited to the above-described embodiments and examples, and various modifications can be made within the scope of the technical idea. Can be implemented.
１：主信号発生部
２：ＣＤＭＡ変調部
３：拡散部
４：送信デジタル無線部
５：デジタル／アナログ変換部
６：送信周波数変換部
７：送信アナログ無線部
８：アンテナ
９：送受信切替部
１０：受信アナログ無線部
１１：受信周波数変換部
１２：アナログ／デジタル変換部
１３：受信デジタル無線部
１４：逆拡散部
１５：ＣＤＭＡ復調部
１６：主信号処理部
１７：上りＴＣＰビット抽出部
１８：送信電力制御部
１９：タイミング調整部
1: Main signal generation unit 2: CDMA modulation unit 3: Spreading unit 4: Transmission digital radio unit 5: Digital / analog conversion unit 6: Transmission frequency conversion unit 7: Transmission analog radio unit 8: Antenna 9: Transmission / reception switching unit 10: Reception analog radio unit 11: reception frequency conversion unit 12: analog / digital conversion unit 13: reception digital radio unit 14: despreading unit 15: CDMA demodulation unit 16: main signal processing unit 17: uplink TCP bit extraction unit 18: transmission power Control unit 19: Timing adjustment unit
Claims (18)
送受信機に、周波数変更に伴う送受信出力信号断時に、送受信切換えを行うための送受信切換信号の出力後に、送信周波数変更信号又は受信周波数変更信号を出力するタイミング調整手段を備えることを特徴とする通信局。 In a communication station of a mobile communication system,
A communication device comprising: a timing adjustment means for outputting a transmission frequency change signal or a reception frequency change signal to a transmitter / receiver after outputting a transmission / reception switch signal for switching transmission / reception when the transmission / reception output signal is interrupted due to frequency change. Bureau.
前記送受信出力信号断時に、前記送受信切換信号を出力するまで、前記送信周波数変更信号又は前記受信周波数変更信号を保持することを特徴とする請求項１に記載の通信局。 The timing adjusting means includes
The communication station according to claim 1, wherein the transmission frequency change signal or the reception frequency change signal is held until the transmission / reception switching signal is output when the transmission / reception output signal is interrupted.
送信ルートから受信ルートへの送受信切替信号まで、前記送信周波数変更信号を保持し、送信ルートから受信ルートへの送受信切替信号を出力後に、前記送信周波数変更信号を送信周波数変換手段へ出力することを特徴とする請求項１又は請求項２に記載の通信局。 The timing adjusting means includes
The transmission frequency change signal is held from the transmission route to the reception route to the transmission / reception switching signal, and after the transmission / reception switching signal from the transmission route to the reception route is output, the transmission frequency change signal is output to the transmission frequency conversion means. The communication station according to claim 1 or 2, characterized in that
受信ルートから送信ルートへの送受信切替信号まで、前記受信周波数変更信号を保持し、受信ルートから送信ルートへの送受信切替信号を出力後に、前記受信周波数変更信号を受信周波数変換手段へ出力することを特徴とする請求項１又は請求項２に記載の通信局。 The timing adjusting means includes
The reception frequency change signal is held from the reception route to the transmission route to the transmission / reception switching signal, and after the transmission / reception switching signal from the reception route to the transmission route is output, the reception frequency change signal is output to the reception frequency conversion means. The communication station according to claim 1 or 2, characterized in that
送信ルート時に送受信周波数変更信号を入力すると、
送信ルートから受信ルートへの送受信切替信号まで、前記送信周波数変更信号を保持し、送信ルートから受信ルートへの送受信切替信号を出力後に、前記送信周波数変更信号を送信周波数変換手段へ出力し、
その後、受信ルートから送信ルートへの送受信切替信号まで、前記受信周波数変更信号を保持し、受信ルートから送信ルートへの送受信切替信号を出力後に、前記受信周波数変更信号を受信周波数変換手段へ出力することを特徴とする請求項１又は請求項２に記載の通信局。 The timing adjusting means includes
When a transmission / reception frequency change signal is input during transmission route,
From the transmission route to the transmission / reception switching signal to the reception route, holding the transmission frequency change signal, after outputting the transmission / reception switching signal from the transmission route to the reception route, outputting the transmission frequency change signal to the transmission frequency conversion means,
Thereafter, the reception frequency change signal is held until the transmission / reception switching signal from the reception route to the transmission route, and after the transmission / reception switching signal from the reception route to the transmission route is output, the reception frequency change signal is output to the reception frequency conversion means. The communication station according to claim 1 or 2, characterized by the above.
受信ルート時に送受信周波数変更信号を入力すると、
受信ルートから送信ルートへの送受信切替信号まで、前記受信周波数変更信号を保持し、受信ルートから送信ルートへの送受信切替信号を出力後に、前記受信周波数変更信号を受信周波数変換手段へ出力し、
その後、送信ルートから受信ルートへの送受信切替信号まで、前記送信周波数変更信号を保持し、送信ルートから受信ルートへの送受信切替信号を出力後に、前記送信周波数変更信号を送信周波数変換手段へ出力することを特徴とする請求項１又は請求項２に記載の通信局。 The timing adjusting means includes
When a transmission / reception frequency change signal is input during the reception route,
From the reception route to the transmission / reception switching signal to the transmission route, the reception frequency change signal is held, and after outputting the transmission / reception switching signal from the reception route to the transmission route, the reception frequency change signal is output to the reception frequency conversion means,
Thereafter, the transmission frequency change signal is held from the transmission route to the transmission / reception switching signal to the reception route, and after the transmission / reception switching signal from the transmission route to the reception route is output, the transmission frequency change signal is output to the transmission frequency conversion means. The communication station according to claim 1 or 2, characterized by the above.
周波数変更に伴う送受信出力信号断時に、送受信切換えを行うための送受信切換信号の出力後に、送信周波数変更信号又は受信周波数変更信号を出力するタイミング調整を行うことを特徴とする周波数変更制御方法。 A frequency change control method in a transceiver provided in a communication station of a mobile communication system,
A frequency change control method comprising: adjusting a timing of outputting a transmission frequency change signal or a reception frequency change signal after outputting a transmission / reception switch signal for switching transmission / reception when a transmission / reception output signal is interrupted due to frequency change.
前記送受信出力信号断時に、前記送受信切換信号を出力するまで、前記送信周波数変更信号又は前記受信周波数変更信号を保持することを特徴とする請求項７に記載の周波数変更制御方法。 With the timing adjustment,
The frequency change control method according to claim 7, wherein the transmission frequency change signal or the reception frequency change signal is held until the transmission / reception switching signal is output when the transmission / reception output signal is interrupted.
送信ルートから受信ルートへの送受信切替信号まで、前記送信周波数変更信号を保持し、送信ルートから受信ルートへの送受信切替信号を出力後に、前記送信周波数変更信号を送信周波数変換手段へ出力することを特徴とする請求項７又は請求項８に記載の周波数変更制御方法。 With the timing adjustment,
The transmission frequency change signal is held from the transmission route to the reception route to the transmission / reception switching signal, and after the transmission / reception switching signal from the transmission route to the reception route is output, the transmission frequency change signal is output to the transmission frequency conversion means. 9. The frequency change control method according to claim 7, wherein the frequency change control method is provided.
受信ルートから送信ルートへの送受信切替信号まで、前記受信周波数変更信号を保持し、受信ルートから送信ルートへの送受信切替信号を出力後に、前記受信周波数変更信号を受信周波数変換手段へ出力することを特徴とする請求項６又は請求項７に記載の周波数変更制御方法。 With the timing adjustment,
The reception frequency change signal is held from the reception route to the transmission route to the transmission / reception switching signal, and after the transmission / reception switching signal from the reception route to the transmission route is output, the reception frequency change signal is output to the reception frequency conversion means. The frequency change control method according to claim 6 or 7, wherein the frequency change control method is characterized in that:
送信ルート時に送受信周波数変更信号を入力すると、
送信ルートから受信ルートへの送受信切替信号まで、前記送信周波数変更信号を保持し、送信ルートから受信ルートへの送受信切替信号を出力後に、前記送信周波数変更信号を送信周波数変換手段へ出力し、
受信ルートから送信ルートへの送受信切替信号まで、前記受信周波数変更信号を保持し、受信ルートから送信ルートへの送受信切替信号を出力後に、前記受信周波数変更信号を受信周波数変換手段へ出力することを特徴とする請求項６又は請求項７に記載の周波数変更制御方法。 With the timing adjustment,
When a transmission / reception frequency change signal is input during the transmission route,
From the transmission route to the transmission / reception switching signal to the reception route, holding the transmission frequency change signal, after outputting the transmission / reception switching signal from the transmission route to the reception route, outputting the transmission frequency change signal to the transmission frequency conversion means,
The reception frequency change signal is held from the reception route to the transmission route to the transmission / reception switching signal, and after the transmission / reception switching signal from the reception route to the transmission route is output, the reception frequency change signal is output to the reception frequency conversion means. The frequency change control method according to claim 6 or 7, wherein the frequency change control method is characterized in that:
受信ルート時に送受信周波数変更信号を入力すると、
受信ルートから送信ルートへの送受信切替信号まで、前記受信周波数変更信号を保持し、受信ルートから送信ルートへの送受信切替信号を出力後に、前記受信周波数変更信号を受信周波数変換手段へ出力し、
その後、送信ルートから受信ルートへの送受信切替信号まで、前記送信周波数変更信号を保持し、送信ルートから受信ルートへの送受信切替信号を出力後に、前記送信周波数変更信号を送信周波数変換手段へ出力することを特徴とする請求項６又は請求項７に記載の周波数変更制御方法。 With the timing adjustment,
When a transmission / reception frequency change signal is input during the reception route,
From the reception route to the transmission / reception switching signal to the transmission route, the reception frequency change signal is held, and after outputting the transmission / reception switching signal from the reception route to the transmission route, the reception frequency change signal is output to the reception frequency conversion means,
Thereafter, the transmission frequency change signal is held from the transmission route to the transmission / reception switching signal to the reception route, and after the transmission / reception switching signal from the transmission route to the reception route is output, the transmission frequency change signal is output to the transmission frequency conversion means. The frequency change control method according to claim 6 or 7, wherein:
送受信機に、周波数変更に伴う送受信出力信号断時に、送受信切換えを行うための送受信切換信号の出力後に、送信周波数変更信号又は受信周波数変更信号を出力するタイミング調整手段を備えることを特徴とする送受信機。 A transceiver provided in a communication station of a mobile communication system,
Transmitter / receiver comprising timing adjustment means for outputting a transmission frequency change signal or a reception frequency change signal after the output of the transmission / reception switch signal for switching transmission / reception when the transmission / reception output signal is interrupted due to the frequency change. Machine.
前記送受信出力信号断時に、前記送受信切換信号を出力するまで、前記送信周波数変更信号又は前記受信周波数変更信号を保持することを特徴とする請求項１３に記載の送受信機。 The timing adjusting means includes
The transceiver according to claim 13, wherein the transmission frequency change signal or the reception frequency change signal is held until the transmission / reception switching signal is output when the transmission / reception output signal is interrupted.
送信ルートから受信ルートへの送受信切替信号まで、前記送信周波数変更信号を保持し、送信ルートから受信ルートへの送受信切替信号を出力後に、前記送信周波数変更信号を送信周波数変換手段へ出力することを特徴とする請求項１３又は請求項１４に記載の送受信機。 The timing adjusting means includes
The transmission frequency change signal is held from the transmission route to the reception route to the transmission / reception switching signal, and after the transmission / reception switching signal from the transmission route to the reception route is output, the transmission frequency change signal is output to the transmission frequency conversion means. The transmitter / receiver according to claim 13 or 14, characterized in that:
受信ルートから送信ルートへの送受信切替信号まで、前記受信周波数変更信号を保持し、受信ルートから送信ルートへの送受信切替信号を出力後に、前記受信周波数変更信号を受信周波数変換手段へ出力することを特徴とする請求項１３又は請求項１４に記載の送受信機。 The timing adjusting means includes
The reception frequency change signal is held from the reception route to the transmission route to the transmission / reception switching signal, and after the transmission / reception switching signal from the reception route to the transmission route is output, the reception frequency change signal is output to the reception frequency conversion means. The transmitter / receiver according to claim 13 or 14, characterized in that:
送信ルート時に送受信周波数変更信号を入力すると、
送信ルートから受信ルートへの送受信切替信号まで、前記送信周波数変更信号を保持し、送信ルートから受信ルートへの送受信切替信号を出力後に、前記送信周波数変更信号を送信周波数変換手段へ出力し、
その後、受信ルートから送信ルートへの送受信切替信号まで、前記受信周波数変更信号を保持し、受信ルートから送信ルートへの送受信切替信号を出力後に、前記受信周波数変更信号を受信周波数変換手段へ出力することを特徴とする請求項１３又は請求項１４に記載の送受信機。 The timing adjusting means includes
When a transmission / reception frequency change signal is input during transmission route,
From the transmission route to the transmission / reception switching signal to the reception route, holding the transmission frequency change signal, after outputting the transmission / reception switching signal from the transmission route to the reception route, outputting the transmission frequency change signal to the transmission frequency conversion means,
Thereafter, the reception frequency change signal is held until the transmission / reception switching signal from the reception route to the transmission route, and after the transmission / reception switching signal from the reception route to the transmission route is output, the reception frequency change signal is output to the reception frequency conversion means. The transmitter / receiver according to claim 13 or 14, characterized in that:
受信ルート時に送受信周波数変更信号を入力すると、
受信ルートから送信ルートへの送受信切替信号まで、前記受信周波数変更信号を保持し、受信ルートから送信ルートへの送受信切替信号を出力後に、前記受信周波数変更信号を受信周波数変換手段へ出力し、
その後、送信ルートから受信ルートへの送受信切替信号まで、前記送信周波数変更信号を保持し、送信ルートから受信ルートへの送受信切替信号を出力後に、前記送信周波数変更信号を送信周波数変換手段へ出力することを特徴とする請求項１３又は請求項１４に記載の送受信機。 The timing adjusting means includes
When a transmission / reception frequency change signal is input during the reception route,
From the reception route to the transmission / reception switching signal to the transmission route, the reception frequency change signal is held, and after outputting the transmission / reception switching signal from the reception route to the transmission route, the reception frequency change signal is output to the reception frequency conversion means,
Thereafter, the transmission frequency change signal is held from the transmission route to the transmission / reception switching signal to the reception route, and after the transmission / reception switching signal from the transmission route to the reception route is output, the transmission frequency change signal is output to the transmission frequency conversion means. The transmitter / receiver according to claim 13 or 14, characterized in that:
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