Unlock instant, AI-driven research and patent intelligence for your innovation.

Associated detection based diversity receiving device and method

A technology of diversity reception and joint detection, applied in the direction of space transmit diversity, diversity/multi-antenna system, electrical components, etc., to achieve simple implementation, meet the needs of terminal mobility, and improve the effect of data service performance

Inactive Publication Date: 2008-04-09
ST ERICSSON SEMICON BEIJING
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing TD-SCDMA terminals use single-antenna receiving technology, and single-antenna joint detection of a deeply fading signal is powerless

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Associated detection based diversity receiving device and method
  • Associated detection based diversity receiving device and method
  • Associated detection based diversity receiving device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The specific implementation method of the present invention will be described below by taking Time Division Duplex Low Chip Rate (TDD-LCR) in TD-SCDMA as an example. Those skilled in the art can easily understand that the present invention is also applicable to mobile terminals in other communication systems; although dual antennas are used as an example for illustration in the following specific embodiments, the basic principles of the present invention are also applicable to multiple ( In the case of more than two antennas.

[0030] Figure 1 illustrates the space diversity reception of a TD-SCDMA mobile terminal using dual antennas. The wireless signal enters the two receiving antennas independently from the space, and then passes through two independent radio frequency and baseband channels respectively, and outputs two independent automatic gain values ​​g AGC1 and g AGC2 To the joint detection diversity receiver, the digital signals "data 1" and "data 2" obtained...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a diversity reception device and a method based on combined detection. The device comprises a first antenna, a first radio frequency and base-band front end which outputs the first data after processing the first radio frequency signal received by the first antenna, and a first automatic gain-to-diversity receiver; the device also comprises a second antenna, a second radio frequency and base-band front end which outputs the second data after processing the second radio frequency signal received by the second antenna, and a second automatic gain-to-diversity receiver; a diversity receiver is used to accomplish the combined detection and the diversity reception of the first data and the second data and output the result of diversity reception to a decoder; a decoder is used to decode the result of diversity reception and output user information bit. The invention combines the two signal processing technology of combined detection and diversity reception, greatly enhancing the data service performance under decayed channels; the invention depends on the concrete combined detection receiver to realize diversity reception, easy to be realized.

Description

technical field [0001] The invention relates to the third-generation mobile communication technology, in particular to a diversity receiving device and method based on joint detection in Time Division Synchronous Code Division Multiple Access (TD-SCDMA). Background technique [0002] With the increasing demand for high-speed data transmission in future multimedia services, wireless data services will increase sharply, which requires that the third-generation mobile communication system must have some characteristics suitable for transmitting data services, such as high data volume, high burst, high reliability etc. For the TD-SCDMA system, one of the third-generation mobile communication standards, it can provide not only high-quality low-speed voice services but also high-quality high-speed data transmission services for various users with different communication needs, such as high-speed downlink packet access (HSDPA). [0003] In order to support people's demand for HSD...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/08H04B1/707
Inventor 李燮
Owner ST ERICSSON SEMICON BEIJING