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Channel quality information computation method, device and system

A technology of channel quality information and calculation methods, applied in the field of devices and systems, and channel quality information calculation methods, which can solve problems such as inaccurate channel quality information

Active Publication Date: 2018-02-23
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the channel quality information of the downlink channel calculated by the eNB is not accurate enough in the prior art, embodiments of the present invention provide a channel quality information calculation method, device and system

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  • Channel quality information computation method, device and system
  • Channel quality information computation method, device and system

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Embodiment Construction

[0199] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0200] The "module" mentioned in this article refers to the program or instruction that can realize certain functions stored in the memory; the "unit" mentioned in this article refers to a functional structure divided according to logic, and the "unit" can be composed of Pure hardware implementation, or a combination of software and hardware.

[0201] The "plurality" mentioned herein means two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character " / " generally indicates that the contextual objects are an "or" relationship.

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Abstract

The invention discloses a channel quality information computation method, device and system, and belongs to the field of the communication. The method comprises the following steps: a terminal receives a downlink configuration instruction sent by access network equipment; the terminal measures a reference signal source indicated by the downlink configuration instruction to obtain first channel quality information, and sends the first channel quality information to the access network equipment; the terminal sends an SRS to the access network equipment; and the access network equipment computessecond channel quality information according to the first channel quality information and the SRS. Since the first channel quality information can more accurately represent the interference situationof a downlink channel, the problem that the channel quality information of the downlink channel, obtained through the eNB computation is not accurate enough in the prior art is solved; and an effect that the second channel quality information computed by the access network equipment can accurately represent the channel quality of the downlink channel is achieved.

Description

technical field [0001] The embodiments of the present invention relate to the communication field, and in particular to a method, device and system for calculating channel quality information. Background technique [0002] In the long term evolution (Long Term Evolution, LTE) technology, the evolved base station (evolutional NodeB, eNB or e-NodeB) needs to know the channel quality information of the user equipment (User Equipment) in the downlink channel, and send the UE sends downlink data. Downlink refers to the link or direction in which eNB sends data to UE. [0003] In LTE using Time Division Duplexing (TDD), a method for calculating channel quality information is provided, including: the UE sends a Sounding Reference Signal (SRS) to the eNB; the eNB calculates the uplink channel according to the SRS Channel estimation information, which converts the channel estimation information of the uplink channel into channel estimation information of the downlink channel accord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0026H04L1/20H04B7/04H04L5/0048H04L5/0057H04W24/08
Inventor 刘鹍鹏
Owner HUAWEI TECH CO LTD
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