Overhead information transmission method, base station, terminal and system

An information transmission and terminal technology, applied in the field of communication, can solve the problems of low complexity, high complexity, and reducing the performance of terminal demodulation downlink control channels, etc., and achieve the effect of less uplink overhead and improved demodulation performance

Active Publication Date: 2015-08-19
ZTE CORP
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Problems solved by technology

[0003] The terminal usually adopts the following two methods to obtain the information of other users' interference signals: one method is that the terminal estimates the information of the interference signal through a blind detection algorithm. This method is relatively complicated, and the estimated interference signal information has certain The other method is that the base station sends information about the interference signal to the terminal. The complexity of this method is relatively low, and the accuracy of the interference signal information obtained by the terminal is relatively high, but the disadvantage is: the base stat

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  • Overhead information transmission method, base station, terminal and system
  • Overhead information transmission method, base station, terminal and system
  • Overhead information transmission method, base station, terminal and system

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[0025] In the embodiment of the present invention: after receiving the downlink data processing capability parameter sent by the terminal, the base station sends downlink control information (DCI) to the terminal through the downlink control channel, and the X bits in the DCI are used to indicate other terminals M sets of downlink reference information; wherein, the X is a positive integer, and the M is a positive integer smaller than the value indicated by the downlink data processing capability parameter of the terminal.

[0026] figure 1 It is a schematic diagram of the implementation flow of the overhead information transmission method described in the embodiment of the present invention, as shown in figure 1 shown, including:

[0027] Step 101: the base station receives the downlink data processing capability parameter sent by the terminal;

[0028] Step 102: the base station sends downlink control information DCI to the terminal through the downlink control channel, an...

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Abstract

Disclosed is an overhead information transmission method. The method comprises: sending, by a base station, downlink control information (DCI) to a terminal through a downlink control channel, X bits in the DCI being used for indicating M sets of downlink reference information about other terminals except the terminal, where X is a positive integer, and M is a positive integer which is less than a numerical value expressed by a downlink data processing capability parameter of the terminal. Also disclosed at the same time are a base station, a terminal and a system corresponding to the method.

Description

technical field [0001] The present invention relates to data demodulation technology in the communication field, in particular to an overhead information transmission method, a base station, a terminal and a system. Background technique [0002] Long Term Evolution (LTE) technology is a wireless cellular communication technology of the fourth generation mobile communication technology (Fourth Generation, 4G). As mobile communication cells become more and more dense in the future, interference between users is a more important issue. At present, a variety of advanced receiving algorithms have been proposed. These advanced receiving algorithms can suppress certain interference and improve the demodulation performance of the receiving end. However, the advanced receiving algorithm with better interference suppression capability needs to obtain related information of other interference signals, such as pilot information, Modulation and Coding Scheme (MCS) information, and the l...

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L5/0053H04L5/0091H04W76/27H04L5/0048H04W72/23H04W72/541H04W88/02H04W88/08
Inventor 辛雨郝鹏倪佳徐俊
Owner ZTE CORP
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