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Mobile terminal, joint receiver, activated code channel information detection and allocating device and its method

A technology for activating code channels and configuration methods, which is applied in the field of activation code channel detection and configuration devices, can solve problems such as estimation errors and terminal inability to accurately obtain transmission code channels in advance, and achieve strong robustness and wide application conditions.

Inactive Publication Date: 2005-05-25
ST ERICSSON SEMICON BEIJING
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  • Abstract
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Problems solved by technology

[0003] However, in the TD-SCDMA system, the terminal cannot accurately obtain the information of the transmission code channel in advance
Usually, this information is obtained by estimating the received data of the current working time slot, so there will inevitably be estimation errors in the code channel information

Method used

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  • Mobile terminal, joint receiver, activated code channel information detection and allocating device and its method
  • Mobile terminal, joint receiver, activated code channel information detection and allocating device and its method
  • Mobile terminal, joint receiver, activated code channel information detection and allocating device and its method

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Embodiment Construction

[0018] figure 1 Shown is the structural diagram of the TD-SCDMA mobile terminal of the present invention. The TD-SCDMA mobile terminal 100 is applied in the third generation mobile communication system.

[0019] The TD-SCDMA mobile terminal 100 includes an antenna terminal 101, a radio frequency front end 102, an analog baseband processor 103, an analog / digital converter 104, an RRC (Root-raised Cosine, root-raised cosine) filter 105, a joint detector 106, an activation A code channel detection and configuration unit 107 and a decoder 108 .

[0020] First, the wireless signal reaches the antenna end 101 of the mobile terminal through the space transmission channel, and the radio frequency front-end 102 performs frequency point selection, frequency mixing and amplification processing on the received wireless signal, and outputs a zero-IF signal. The zero intermediate frequency signal becomes joint detection after passing through the analog baseband processor 103 for obtaining...

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Abstract

A active code channel detection and configurator contains a active code channel detector and an active code channel configurator wherein the active code channel detector transmit information of received data and frequency channel response estimation information to active code channel configurator, the active code channel configurator makes judgment that whether start the active code channel configurator or utilize it to output code channel configuration information. Said invention can give out active code channel information configuration before demodulating code channel information.

Description

technical field [0001] The present invention relates to a TD-SCDMA (time division-synchronous code division multiple access system) terminal in a mobile communication system, in particular to an active code channel detection and configuration device and a detection device for realizing joint detection in a TD-SCDMA mobile terminal configuration method. Background technique [0002] In the TD-SCDMA terminal system, the joint detection method is an excellent data estimation method and one of the important core technologies of TD-SCDMA. Its physical meaning is to estimate all user data sent by the base station system at the same time. The joint detection and estimation method needs to generate a system matrix, where the system matrix is ​​determined by the spreading codes of multiple users and the corresponding channel impulse responses. The physical channel occupied by each spreading code is called a code channel. The system matrix is ​​the response matrix of the entire syst...

Claims

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Application Information

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IPC IPC(8): H04B1/16H04B1/707
Inventor 李燮董霄剑
Owner ST ERICSSON SEMICON BEIJING
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