Huawei Technologies Co., Limited

Huawei Device Co., Ltd.

Shufan Huang

Jing Yang

Gengshi Wu

Nian Peng

Feng Li

Jiajing Zhou

Congli Mao

In the field of communications technologies, a down sampling method and a down sampling device are provided, to enable the energy of a down sampling point obtained in down sampling to be as large as possible. The down sampling method includes: extracting energy statistical values of sampling point sets in a current period; selecting a sampling position corresponding to a sampling point set with the largest energy statistical value as a down sampling position; and performing down sampling according to the down sampling position.

Down sampling method and down sampling device

Method and apparatus are provided for estimating Time of Arrival ('TOA'). The method includes: performing channel estimation according to a Normal Burst ('NB') free of interference and a local training sequence and generating a channel estimate, performing TOA estimation according to the channel estimate, and adjusting a synchronization position of the current NB according to a TOA estimation result. Interference to signals is cancelled before the TOA estimation, thus overcoming energy estimate deviation arising from interference in a strongly interfering radio environment, as occurs in the prior art, and preventing the impact on the TOA estimation. The disclosed methods and apparatus provide for more accurate energy estimates in a strongly interfering radio environment. The technical solution under the present invention does not require adjustment of the method of adjusting the search window.

Method and apparatus for estimating time of arrival

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Shanghai, China

Shufan Huang