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Method for increasing uploading system capacity of WCDMA multiple I/O terminal system

A terminal system and system capacity technology, applied in diversity/multi-antenna systems, transmission systems, digital transmission systems, etc., can solve problems such as strong electromagnetic coupling of antenna units, adverse effects of multiple input and multiple output system performance, etc.

Inactive Publication Date: 2006-11-01
ZTE CORP
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Problems solved by technology

[0003] The present invention solves the technical problem that there is a strong electromagnetic coupling between the antenna units of the MIMO terminal system in the prior art solution, which adversely affects the performance of the MIMO system, and provides an improved WCDMA MIMO terminal system Uplink system capacity method

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  • Method for increasing uploading system capacity of WCDMA multiple I/O terminal system
  • Method for increasing uploading system capacity of WCDMA multiple I/O terminal system
  • Method for increasing uploading system capacity of WCDMA multiple I/O terminal system

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Embodiment Construction

[0037] The present invention provides a method for improving the uplink system capacity of a WCDMA multiple input multiple output terminal system: using space-time orthogonal block coding (STOB) EM mutual coupling transmission + adaptive minimum mean square error beamforming (MMSE beamforming) reception, the method It includes the following steps:

[0038] Step 1. On the signal transmitting side:

[0039] 7) Perform STOB encoding on the source data block Q-block to form a STOB matrix;

[0040] 8) STOB encoder output data stream g m k，(l) (i|Q) performs channel mapping, where g m k，(l) (i|Q) means transmitting the i-th data of the Q-th block data matrix of the k-th user on the m-th antenna;

[0041] 9) Pair g m k，(l) (i|Q) While performing channel mapping, insert the corresponding transmit antenna coded data into the parallel data stream of the dedicated pilot channel;

[0042] Step 2: On the signal receiving side:

[0043] 10) The Node B receiver recognizes the transmitting ant...

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Abstract

The method comprises following steps: 1) at signal emitting side, making STOB coding for source data block (Q-block) to form a STOB matrix; the STOB encoder outputs bit-stream gmk (l) (i|Q) to make channel mapping; wherein, gmk (l) (i|Q) represents a number i column data in number Q block in number k user emitted from number m antenna; while making channel mapping for gmk (l) (i|Q), a corresponding emitting antenna coding data is inserted into the parallel data of dedicated polite channel; 2) at signal receiving side, the Node B receiver identifies emitting antenna while making channel estimation to get a channel estimation value and an emitting antenna corresponding to the channel estimation value; 3) defining the emitting electromagnet coupling channel; 4) defining the system performance parameter.

Description

Technical field [0001] The invention relates to a method for increasing the capacity of a multiple-input multiple-output (MIMO) terminal system, in particular to a method for the capacity of a WCDMA multiple-input multiple-output terminal system in the field of cellular mobile communication. Background technique [0002] Continuously improving the transmission efficiency of the cellular mobile communication system and then increasing the system capacity is always the central task of the wireless transmission technology (RTT) of the mobile communication system. MIMO technology has become the mainstream technology of Super 3G (B3G) and 3G Long Term Evolution (LTE) technology based on OFDM technology in 3GPP. At the same time, MIMO technology is also one of the key technologies of Wimax technology. However, when the MIMO technology is used, due to the limitation of the terminal size, the distance between the antenna elements of the MIMO terminal is often only 0.1 to 0.3 operating wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B1/707H04B7/08H04L1/00
CPCH04B7/0669H04B1/71055H04B7/0854H04L1/0631H04L1/0643H04L25/0204
Inventor 彭宏利
Owner ZTE CORP
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