Spreadtrum Communications Corporation

Rda Microelectronics (shanghai) Co., Ltd.

Rda Microelectronics Technologies (shanghai) Co., Ltd.

Liyun Luo

Jian Mg Cheng

Kai Lin Li

Yu Wang

Jiayi Zhuang

Guochu Chen

Wenqiang Tian

Zhongxing Yu

Kai Li

Yongqian Wang

Jingjing Su

Fengxiang Wang

Embodiments of the disclosure disclose a method for signal detection, an electronic device, and a storage medium. The method includes: receiving a Bluetooth signal, obtaining a signal quality by performing signal detection on a preamble portion of the Bluetooth signal, and terminating signal detection on sync word portion or an access address portion of the Bluetooth signal on condition that the signal quality is not greater than a quality threshold.

Method for signal detection, electronic device, and storage medium

An interference detection method and apparatus, a storage medium, and a terminal are provided. The method includes: receiving a signal; obtaining a power value of the signal as a first power; filtering the signal to obtain a filtered signal; obtaining a power value of the filtered signal as a second power; and determining whether a frequency channel where the signal is located is an interference frequency channel or a non-interference frequency channel based on a comparison result of a ratio of the first power to the second power and a preset threshold.

Interference detection method and apparatus, storage medium, and terminal

A method and an apparatus for carrier frequency-offset determination and a storage medium are provided. The method includes the following. A first carrier initial frequency-offset is obtained according to a pilot time interval and a pilot phase difference of a first carrier. A second carrier frequency-offset is obtained according to a carrier frequency-ratio of a second carrier to the first carrier and the first carrier initial frequency-offset. A first carrier frequency-offset is obtained according to the first carrier initial frequency-offset.

Method and apparatus for carrier frequency-offset determination and storage medium

A Bluetooth communication method and device, and storage medium and terminal are provided. The method includes: generating a frame to be transmitted, wherein the frame to be transmitted comprises at least a Preamble, an Access Code, a Header, an Enhanced Data Rate Payload and a Trailer, wherein a configuration mode of the Preamble is consistent with a configuration mode of a Preamble in an LE frame, a configuration mode of the Header, the Enhanced Data Rate Payload and the Trailer are consistent with configuration modes of corresponding parts in an EDR frame, a configuration mode of the Access Code is consistent with a configuration mode of an Access Code in the LE frame and a configuration mode of an Access Code in the EDR frame; and generating and transmitting the frame to be transmitted by a modulation mode of the EDR frame and a Symbol Rate of the LE frame.

Bluetooth communication method and device, and storage medium and terminal

This invention discloses a channel estimation method for partial IC in TD-SCDMA intra-frequency cell, Specifically IC or de-correlation multi-user detection is utilized. Partial IC is implemented to realize the joint detection of the channel in several intra-frequency cells. As to n cells, the detailed procedures go as follows: At first, n 2&#xd7;128 memories are established, just as s, s, s. . . s, in order to store the complex serial. Midamble codes of the received signal constitute the 128-chip data. Step 1: The data taken from Midamble codes of the received signals undergo the Partial IC process of the residual past in the first cell. The process of channel estimation in the first cell is undertaken. Afterwards, the received signals of UE from the 1cell are recovered. The channel of the other cells is estimated from the received signals and the received signals of corresponding Midamble code is recovered to repeat the above procedures, until the completion of the process of the received signal, and it comes to Step (n+1). Iteration once is finished from Step 1 to Step (n+1), in which n processes are involved and one process is correspondent to one cell. The iteration after m times will finalize the channel estimation.

Method and apparatus of channel estimation in an intra-frequency cell

This invention presents a synchronization method for uplink, and is based on UE JT technology. During downlink, UE sets up the downlink synchronization; UE undertakes the downlink channel estimation; UE, according to the estimated downlink channel estimation result, constructs transport matrix A, and the uplink synchronization code matrix d to be transmitted by UE. Then UE obtains the uplink pilot frequency transmission data s, which includes the latest downlink channel fading and multi-path information.

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Shanghai, China

Liyun Luo