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    MATCHED FILTER AND RECEIVER FOR MOBILE RADIO COMMUNICATION SYSTEM
    42.
    发明公开
    MATCHED FILTER AND RECEIVER FOR MOBILE RADIO COMMUNICATION SYSTEM 有权
    用于移动无线通信系统信号匹配过滤器和接收器

    公开(公告)号：EP1279239A2

    公开(公告)日：2003-01-29

    申请号：EP01925900.1

    申请日：2001-04-25

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ)

    Inventor： URABE, Kenzo ,  YAMAMOTO, Kazushige

    IPC: H04B1/707

    CPC classification number: H04B1/7093 ,  G06F17/15 ,  H04B1/7117 ,  H04B1/712 ,  H04B2201/70711

    Abstract: A matched filter requiring no high-speed processor and which consumes less power is disclosed. Partial filters 301 - 30N obtained by dividing number of matched filter taps by N are provided with a controller 341 for controlling which partial filters are enabled. The controller 341 is supplied with maximum amount of delay of an input signal and with symbol timing. On the basis of the maximum amount of delay, the controller 341 enables only the minimum number of partial filters 301 - 30n that are capable of executing an amount of computation that is required in one symbol period. The enabled partial filters are used multiple number of times per symbol period and the output, each time, integrated sample by sample. Since the disabled partial filters will not operate, it is possible to reduce power consumption and computation time.

    Receiver processing system
    49.
    发明专利
    Receiver processing system 审中-公开

    公开(公告)号：JP2005507602A

    公开(公告)日：2005-03-17

    申请号：JP2003541157

    申请日：2002-11-01

    Applicant: 株式会社東芝

    Inventor： ドルウィン、アンソニー・クレイグ

    IPC: H04B1/707 ,  H04B1/709 ,  H04B1/7113 ,  H04B1/7115 ,  H04B1/7117

    CPC classification number: H04B1/7113 ,  H04B1/709 ,  H04B1/7115 ,  H04B1/7117 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04B2201/70711

    Abstract: 【課題】マルチプレクサを介して部分相関器モジュールの１つの入力に接続された２つのプログラマブル拡散シーケンスブロックを含むレイク受信機処理システムを提供する。
    【解決手段】部分相関器モジュールの第２の入力は複数の遅延ＩＱサンプルのうちの１つの選択を可能とするため第２のマルチプレクサ２３４に接続される。 複数のスクランブルコード発生器２０２の１つから入力の選択を可能とするため、複数のスクランブルコード２０２がスクランブルコード発生器２０８に接続され、各拡散シーケンスブロック２２４、２２６が、対応マルチプレクサ２２０，２２２を備えている。 複数のレジスタ２４２は、プロセッサ２６０による制御の下、レイク受信機の適応構成を可能にする。 システムは、受信チャネル状態および要求データレートにしたがって、ハードウェアリソースの時間多重化及び／又は再割り当を可能にする。

    Multiplexed CDMA and GPS searching
    50.
    发明授权
    Multiplexed CDMA and GPS searching 失效

    公开(公告)号：US08582623B2

    公开(公告)日：2013-11-12

    申请号：US12776071

    申请日：2010-05-07

    Applicant: Wang Paul Poon ,  Qiuzhen Zou

    Inventor： Wang Paul Poon ,  Qiuzhen Zou

    IPC: H04B1/707

    CPC classification number: H04B1/708 ,  G01S19/30 ,  G01S19/34 ,  G01S19/37 ,  H04B1/70754 ,  H04B1/70758 ,  H04B2201/70711

    Abstract: Searcher hardware is multiplexed to perform simultaneous searches in either an IS-95 CDMA mode or a GPS mode. In the IS-95 mode, the search hardware is time-multiplexed into a number of searcher time slices, each of which can generate a PN sequence to despread a data sequence. In the GPS mode, the search hardware is configured as a number of distinct GPS channels, each of which can generate a Gold code sequence for tracking a GPS signal from a particular GPS satellite. This configuration allows the searcher to perform multiple GPS signal searches simultaneously. Signal searching in both IS-95 and GPS modes is performed at significantly higher speeds compared to conventional searcher hardware. Moreover, the search hardware can be dynamically configured to operate in either the IS-95 or the GPS mode, eliminating the need for dedicated circuitry for each mode of operation.

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