Decoding method of PUCCH and apparatus thereof

A technology of control channels and pilot symbols, applied in the decoding field of uplink control channels, can solve problems such as the deterioration of decoding performance under large frequency offset, and achieve the effect of small performance loss and improved decoding performance.
CN102468911AActive Publication Date: 2012-05-23SUZHOU ZHILVE INTELLECTUAL PROPERTY OPERATION CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
SUZHOU ZHILVE INTELLECTUAL PROPERTY OPERATION CO LTD
Publication Date
2012-05-23

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Abstract

The invention discloses a decoding method of a PUCCH and an apparatus thereof. The method is characterized in that: a network side analyzes overall user data from a receiving data of the PUCCH and separates independent user data of the each user from the overall user data; a reference pilot frequency symbol is determined for the independent user data, the reference pilot frequency symbol is taken as a reference to calculate a frequency offset estimation value of the pilot frequency symbol and the frequency offset estimation value is used to carry out frequency offset compensation to the other pilot frequency symbols except the reference pilot frequency symbol; the reference pilot frequency symbol of the each user and the other pilot frequency symbols after the frequency offset compensation are used to calculate a channel estimation value of each data symbol, a phase shift of a data symbol is calculated according to the frequency offset estimation value of the pilot frequency symbol and the channel estimation value of the data symbol is used to compensate the corresponding phase shift. By using the method and the apparatus of the invention, under the condition of the large phase shift, decoding performance can be improved to a great extent.
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Description

technical field

[0001] The present invention relates to the technical field of mobile communication, in particular to a decoding method and device for an uplink control channel. Background technique

[0002] The LTE (Long Term Evolution, long-term evolution) project is the evolution of 3G (third-generation mobile communication technology) and a transition between 3G and 4G. The technical goals of LTE can be summarized as: capacity improvement; coverage enhancement; mobility improvement , such as 0-15km / h has the best performance, 15-120km / h has high performance, supports 120-350km / h, even supports 500km / h in some frequency bands, etc.

[0003] Fast movement will introduce a large Doppler frequency shift. At present, for the uplink control channel (PUCCH), multiple users are multiplexed on the same resource block (RB). To achieve high performance, however, as the mobile speed increases, when the user is in a high-speed mobile environment, the uplink decoding performance will...

Claims

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