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Signal transmission processing method, signal transmission control method, signal transmission system, user equipment (UE) and base station

A technology of signal transmission and user equipment, applied in the field of communication, can solve the problems of large calculation load and feedback overhead, reduce UE calculation load and feedback overhead, etc.

Active Publication Date: 2011-02-02
HUAWEI TECH CO LTD
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Problems solved by technology

[0005] Embodiments of the present invention provide a method and system for signal transmission processing and control, user equipment and a base station, so as to solve the technical problem of relatively large calculation load and feedback overhead of the UE when two-layer BF transmission is performed in the prior art, and reduce the UE's Technical Effects of Computational Load and Feedback Overhead

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  • Signal transmission processing method, signal transmission control method, signal transmission system, user equipment (UE) and base station
  • Signal transmission processing method, signal transmission control method, signal transmission system, user equipment (UE) and base station
  • Signal transmission processing method, signal transmission control method, signal transmission system, user equipment (UE) and base station

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] figure 1 It is a flowchart of an embodiment of the signal transmission processing method of the present invention, such as figure 1 As shown, the method of the present embodiment includes:

[0034] Step 101, receiving the first signal-to-noise ratio offset sent by the base station;

[0035] The UE receives the first SNR offset Δ sent by the base station 1 , the first SNR offset Δ 1 It is used for subsequent UE to perform signal-to-noise ratio adjustment ...

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Abstract

The embodiment of the invention discloses a signal transmission processing method, a signal transmission control method, a signal transmission system, user equipment (UE) and a base station. The signal transmission processing method comprises the following steps of: receiving first signal-to-noise ratio offset sent by the base station; acquiring channel quality indicator (CQI) information transmitted in a second-layer space according to a codebook and the first signal-to-noise ratio offset, wherein the codebook comprises a codebook transmitted by the base station or a codebook predetermined by the base station; and feeding the CQI information back to the base station, so that the base station performs signal transmission processing according to the CQI information. In the embodiment of the invention, the UE is only provided with one transmitting antenna, but the UE still can realize two-layer beamforming (BF) transmission; and the UE has low calculation load and does not need the feedback expense of the codebook.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular, to a signal transmission processing and control method and system, user equipment, and a base station. Background technique [0002] With continuous improvement of system throughput requirements, two-layer beamforming (beamforming, hereinafter referred to as: BF) transmission gradually replaces single-layer BF transmission. [0003] In the existing two-layer BF transmission technology, the user equipment (User Equipment, hereinafter referred to as: UE) can first measure the average signal-to-noise ratio of the downlink common pilot, and obtain the channel quality indicator corresponding to the average signal-to-noise ratio by looking up the table (channel quality indicator, hereinafter referred to as: CQI), and then feed back the CQI to the base station. The base station can adjust the received CQI, so as to obtain the CQI1 of the first layer s...

Claims

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Application Information

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IPC IPC(8): H04W88/02H04L1/16H04W88/08H04W52/36H04L1/00
Inventor 孙卫军苗玉梅李洋
Owner HUAWEI TECH CO LTD
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