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Signal receiving method and device

A signal receiving and signal technology, applied in baseband system components, multi-frequency code systems, etc., can solve the problems of unacceptable and high receiver operating frequency, and achieve the effect of effective receiving and processing

Active Publication Date: 2015-07-08
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the limit of new cache space required by the existing data cache method may be as high as 30kbyte, which is unacceptable for terminal solutions that are extremely sensitive to cost and area factors
Furthermore, since multiple concurrent services are processed serially within one Transmission Time Interval (TTI), compared with non-concurrent business scenarios, additional processing overhead and delay are added, and the timing pressure causes the operating frequency of the receiver to be higher than that of non-concurrent business scenarios. The scene is higher, which brings new power consumption, which is also unacceptable for terminal solutions that are extremely sensitive to power consumption factors

Method used

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  • Signal receiving method and device

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] The embodiment of the present invention provides a signal receiving method, as attached figure 2 shown, including:

[0021] 101. Obtain the reference signal of the frequency domain data in the signal output by the fast Fourier transform FFT, and perform channel estimation, and the channel estimation includes main channel estimation and secondary channel estimation;

[0022] 102. According to the channel estimation result and th...

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Abstract

The embodiment of the invention discloses a signal receiving method and a signal receiving device, wherein the signal receiving method is achieved according to the steps as follows: reference signals of frequency domain data in signals output by FFT (Fast Fourier Fransform) are obtained, channel estimation is performed, and channel estimation comprises main channel estimation and secondary channel estimation; in addition, an MIMO (Multiple Input Multiple Output) detection is performed by taking an OFDM (Orthogonal Frequency Division Multiplexing) symbol as a unit according to channel estimation results and symbol data in the signals output by the FFT. The scheme of the signal receiving method and the device can ensure the purpose of effective operation for receiving multi-transmission parallel scene signals on the premise of remarkably lowering the cost.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a signal receiving method and device. Background technique [0002] As one of the inherent characteristics of the mobile communication system, concurrent services (Parallel transmission) can provide users with better user experience. Taking the Third Generation Partnership Organization (abbreviation, 3GPP) Long Term Evolution (abbreviation, LTE) system as an example, according to 3GPP TS 36.302 published in June 2010, typical downlink concurrent services in the idle state include Physical Downlink Control Channel (PDCCH, Physical downlink control channel), broadcast channel (BCH, broadcast channel), downlink shared channel (DL-SCH, downlink-shared channel) carrying system messages, and paging channel (PCH, paging channel); typical downlink concurrent services in the connected state include PDCCH , BCH, DL-SCH carrying system messages, and DL-SCH carrying data services. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04L25/02
Inventor 谭舒李贵勇申敏
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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