Associated detection based diversity receiving device and method
A technology of diversity reception and joint detection, which is applied in the directions of space transmit diversity, diversity/multi-antenna systems, etc., to meet the needs of terminal mobility, implement simple, and improve data service performance.
Inactive Publication Date: 2012-03-21
ST ERICSSON SEMICON BEIJING
View PDF0 Cites 0 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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
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 It shows the space diversity reception of 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 aft...
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
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 radiofrequency 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; adiversity 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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/08
Inventor 李燮
Owner ST ERICSSON SEMICON BEIJING