Processing method of non-periodic channel state information and device and system

A technology of channel state information and processing method, which is applied in the direction of transmission system, radio transmission system, diversity/multi-antenna system, etc., which can solve the problems of short information and effective processing, and achieve the effect of overcoming the lack of ability

Active Publication Date: 2012-01-11
ZTE CORP
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Problems solved by technology

[0026] The technical problem to be solved by the present invention is to overcome that when the COMP system or the distributed antenna system supports joint transmission of aperiodic channel state information of multiple cells or multiple transmission nodes TP, the interval from triggering to feedback of aperiodic CSI is too short. The problem of inability to effectively process information

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  • Processing method of non-periodic channel state information and device and system
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Embodiment Construction

[0078] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention.

[0079] First of all, if there is no conflict, the embodiment of the present invention and the combination of various features in the embodiment on the premise of no conflict are within the protection scope of the present invention. In addition, the steps shown in the flow diagrams of the figures may be performed in a computer system, such as a set of computer-executable instructions, and, although a logical order is shown in the flow diagrams, in some cases, the sequence may be different. The steps shown or described are performed in the order herein.

[0080] Embodiments of the present invention provide a CSI processing method, which is applied on the user equipment ...

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Abstract

The invention discloses a processing method of non-periodic channel state information and a device and a system. The problem that the interval of non-periodic CSI (Channel State Information) from trigger to feedback is too short to allow the information to be effectively processed can be solved. The method comprises the following steps of: receiving high-level configuration information, wherein the high-level configuration signaling comprises one or more CSI-RS configuration signaling, and receiving one or more CSI-RS reference signals; according to the one or more CSI-RS configuration signaling, carrying out channel measurement of one or more CSI-RS reference signals, and obtaining measurement results; and determining K non-periodic CSI by using the results, and reporting the K non-periodic CSI on K different subframes, wherein K is an integer more than or equal to 2. The embodiment of the invention overcomes the problems that in COMP (Coordinated Multiple Points) technology or a distributed antenna system, the feedback time from trigger non-periodic CSI to actual CSI is too short to allow the information to be effectively processed.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method, device and system for processing aperiodic Channel State Information (Channel State Information, CSI for short) in a distributed antenna system or a cooperative transmission system. Background technique [0002] In the wireless communication technology, when the base station side (for example, an evolved Node B, eNodeB, eNB) uses multiple antennas to transmit data, a spatial multiplexing method may be adopted to increase the data transmission rate. That is, the same time-frequency resources are used at the sending end to transmit different data at different antenna positions, and the receiving end (for example, user equipment UE) also uses multiple antennas to receive data. [0003] In the case of a single user, the resources of all antennas are allocated to the same user, and this user exclusively occupies the physical resources allocated to the base station side wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04W24/10
CPCH04L1/0026H04B7/0626H04B7/0647
Inventor 陈艺戬徐俊张峻峰
Owner ZTE CORP
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