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Cell-based RS (Remote Sensing) beacon channel power calibrating method, base station and UE (User Equipment)

A beacon channel and power calibration technology, applied in the field of wireless communication, can solve the problems of cell RS measurement interference, data transmission conflict, waste of transmission power, etc., to reduce interference, improve mutual interference, and facilitate discovery.

Inactive Publication Date: 2013-09-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] According to the current protocol, the RS transmission power of each cell is consistent across the entire frequency band. However, if the RS of a cell adopts the same transmission power, there may be a conflict between the RS of this cell and the data transmission of neighboring cells. , resulting in the interference of the RS in the local cell to the adjacent area, and at the same time causing the measurement interference between the RSs of each cell; in addition, if the RSs of each cell adopt the same transmit power, for some cells, the transmit power will also be waste of

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  • Cell-based RS (Remote Sensing) beacon channel power calibrating method, base station and UE (User Equipment)
  • Cell-based RS (Remote Sensing) beacon channel power calibrating method, base station and UE (User Equipment)
  • Cell-based RS (Remote Sensing) beacon channel power calibrating method, base station and UE (User Equipment)

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Embodiment Construction

[0041] The solution of the embodiment of the present invention is mainly to bind the RS beacon channel position of the cell with the PCI, and different cells determine the power of the cell beacon channel according to different PCIs, so as to improve the inter-cell RS interference and reduce the The interference between the cell RS and the service data of the adjacent cell improves the detection effect of the UE on the RS.

[0042] Such as figure 1 As shown, an embodiment of the present invention proposes a method for calibrating power based on the RS beacon channel of a cell, including:

[0043] Step S101, the base station calculates the beacon channel range of the RS of the cell according to the PCI of the cell;

[0044] In order to avoid RS interference between cells caused by the consistent RS transmission power of each cell in the entire frequency band in the prior art, this embodiment calibrates the beacon channel transmit power of each cell according to the PCI of the ...

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Abstract

The invention relates to a cell-based RS (Remote Sensing) beacon channel power calibrating method, a base station and UE (User Equipment). The method comprises the following steps: the base station calculates the RS beacon channel range of a cell according to the PCI (Peripheral Component Interconnect) of the cell; according to the beacon channel range, corresponding transmission power is selected so as to transmit the RS of the cell. According to the method, the RS beacon channel position and PCI of the cell are bound, the power of the cell beacon channels of different cells can be determined according to different PCIs, so that the mutual interference of RS between the cells is improved, the interference of the cell RS to adjacent service data is reduced, meanwhile the RS detection effect of the UE is improved, and RS can be easily discovered by the adjacent cells.

Description

technical field [0001] The present invention relates to the field of wireless communication technologies, and in particular to a method for determining cell RS (reference signal, reference signal) beacon channel calibration power according to PCI (physical cell index, physical cell index) in an LTE (Long Term Evolution, long-term evolution) system, base station and UE. Background technique [0002] In the LTE system, there are three types of downlink reference signals: cell-specific reference signals, MBSFN (Multicast Broadcast Single Frequency Network, single frequency network transmission mode) reference signals, and UE (User Equipment, user terminal) dedicated reference signals. Wherein, the downlink reference signal dedicated to the cell is mainly used to measure downlink channel quality and perform downlink channel estimation for coherent detection and demodulation at the UE side. [0003] Usually, a reference signal is transmitted on each downlink antenna port, where ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/32H04W52/34
Inventor 赵黎波姬舒平
Owner ZTE CORP