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Method and device for measuring channel state information

A technology of channel state information and channel state, applied in the field of communication, can solve problems such as increasing reference signal overhead, and achieve the effect of avoiding overhead and large flexibility

Active Publication Date: 2016-04-20
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, multiple CSI processes based on CSI-RS will also increase the reference signal overhead
[0006] For the above-mentioned technologies, whether it is introducing a new reference signal port or continuing to use the CSI-RS-based multi-CSI process will inevitably increase the reference signal overhead, no effective solution has been proposed yet

Method used

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  • Method and device for measuring channel state information
  • Method and device for measuring channel state information
  • Method and device for measuring channel state information

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Embodiment Construction

[0033]Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Moreover, it should also be understood that development work, while potentially complex and time-consuming, would at least be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0034] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the s...

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Abstract

Disclosed are a channel state information measurement method and device. The channel state information measurement method comprises: receiving channel state measurement information sent by a network side, wherein the channel state measurement information comprises CSI-RS-based measurement information and CRS-based measurement information; and according to the channel state measurement information, conducting channel state information measurement. In the present invention, by jointly using a CSI-RS and a CRS to conduct channel state information measurement, the existing CSI-RS, CRS structures and multi-CSI process mechanisms are fully used, thus avoiding the overhead of reference signals to a certain extent. Moreover, since a CSI-RS and a CRS are jointly used to conduct channel state information measurement, measurement results of the CSI-RS and the CRS can be synthesized, thereby providing greater flexibility for the scheduling and pre-coding / beamforming of a base station.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a method and device for measuring channel state information. Background technique [0002] In view of the important role of MIMO (Multiple Input Multiple Output) technology in improving the peak rate and system spectrum utilization, the existing LTE (Long Term Evolution, long-term evolution system) / LTE-A (LTE-Advanced, long-term evolution enhanced system ) and other wireless access technologies are built on the basis of MIMO+OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) technology. And because the performance gain of MIMO technology comes from the spatial freedom obtained by the multi-antenna system, an important evolution direction of MIMO technology in the standardization development process is the expansion of dimensions. [0003] In the base station antenna system adopting the traditional PAS (Passive Antenna Sys...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/309H04W24/08
CPCH04B7/0617
Inventor 苏昕李传军
Owner DATANG MOBILE COMM EQUIP CO LTD