Single-carrier and ultra-wideband sending method and device

A transmission method and ultra-wideband technology, applied to baseband system components, shaping networks in transmitters/receivers, electrical components, etc., can solve the problem that DS-UWB and MB-OFDM are not widely used and are sensitive to carrier frequency offset , high precision requirements and other issues, to achieve the effect of shortening the conversion time of sending and receiving, increasing accuracy and good scalability

Inactive Publication Date: 2010-06-09
TSINGHUA UNIV
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Problems solved by technology

Such a high-speed ADC will make the receiver very expensive, and the power consumption will be very significant, which cannot well meet the needs of low cost and low power consumption
As MB-OFDM adopts OFDM modulation, the inherent PAR (Peak to Average Ratio, p

Method used

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  • Single-carrier and ultra-wideband sending method and device
  • Single-carrier and ultra-wideband sending method and device
  • Single-carrier and ultra-wideband sending method and device

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Embodiment Construction

[0037] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0038] According to the single-carrier ultra-wideband transmission method of the embodiment of the present invention, the method uses the following physical layer data frame structure for transmission, such as image 3 Shown: The preamble (Preamble) part includes three fields: Acquisition / Channel Estimation Sequence, SFD and Block Length, where Acquisition / Channel Estimation Sequence is used for spread spectrum acquisition and channel estimation, SFD is the frame start delimiter, Block Length is the number of blocks in the data segment of the physical frame. The Training Sequence is used for adaptive filter coefficient training, and the Header includes a physical frame he...

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Abstract

The invention discloses single-carrier and ultra-wideband sending method and device. A physical layer data frame structure used in the method is characterized in that a leader sequence comprises a trapping/channel estimation sequence, a frame start delimiter and a block length; a training sequence field is used for coefficient training of a self-adapting filter; the frame head comprises a physical frame head and an MAC frame head; a data field bears metadata; after scrambled, encoded and interlaced, bits of the frame heads and the data are named as information bits; the information bits are divided into N blocks; the value of each frame N can be different, and then the frames of different lengths can be transmitted. A tracking sequence is inserted into the front of each block or behind each block to perform timing tracking. The invention enhances the dissociative diffusion signal-to-noise ratio so that the trapping probability is enhanced; the channel estimation accuracy is increased, the receiving and converting time is shortened, and thus the invention can meet high-speed requirement and is convenient for processing by blocks; and the data auxiliary timing tracking function can be performed.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a single-carrier ultra-wideband transmission method and device. Background technique [0002] UWB technology is a communication technology with an absolute bandwidth greater than 500MHz or a relative bandwidth greater than 20%, and it can provide a communication rate above 100Mbps. UWB has attracted wide attention in the industry for its excellent characteristics of high capacity and low power consumption. In various short-distance wireless networks, such as WPAN (Wireless Personal Area Network, wireless personal area network), WBAN (Wireless Body Area Network, wireless body area network), Ad-hoc network, ultra-wideband technology will be widely used . In addition, the UWB technology is also used in home multimedia interconnection, such as wireless HD (high definition) and WHDI (Wireless Home Digital Interface, wireless home digital interface). In additi...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04L25/03H04B1/707
Inventor 肖振宇张家琦金德鹏朱亮苏厉曾烈光
Owner TSINGHUA UNIV
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