UWB preamble receiver and receiving method thereof

A receiving method and preamble technology, applied in the field of wireless communication, can solve problems such as limiting the use of chips, and achieve the effect of reducing dynamic power consumption

Active Publication Date: 2021-07-23
杭州易百德微电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In some low-power IoT application scenarios, this will seriously limit the use of chips

Method used

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  • UWB preamble receiver and receiving method thereof
  • UWB preamble receiver and receiving method thereof
  • UWB preamble receiver and receiving method thereof

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no. 1 example

[0051] Such as Figure 4 , Figure 5 As shown, the first embodiment of the UWB preamble receiver provided by the present invention includes:

[0052] N serial-to-parallel converters, sampling data to be received at a preset sampling frequency;

[0053] The first memory is divided into two parts. The two parts of the first memory mechanism form a ping-pong memory. In the first preset period, one part performs storage of sampling data, while the other part performs related calculations, and continues after the second preset period. The working tasks of the two parts of the memory are interchanged; wherein, the sampling data of the same position with different symbols are stored in the same address of the first memory;

[0054] The second memory is used to store the intermediate results and final results of correlation accumulation of different code phases. The data stored in the first memory is stored in the second memory after being operated by the parallel adder, and the cor...

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Abstract

The invention discloses an ultra-wideband preamble receiver, which includes N-channel sampling data serial-to-parallel converters, and a part of the first memory stores sampling data in a first preset period, while another part performs correlation operations, and lasts for the first preset period. After the second preset period, the working tasks of the two parts of the memory are exchanged; the second memory stores the interim results and final results of the relevant accumulation of different code phases, the preprocessing module filters out the carrier frequency offset, the N-way parallel adder and the dynamic limiter, the code Partial correlation accumulation result accumulator of the phase; the non-zero preamble selector converts the non-zero preamble position value into specific address values ​​of certain N code phases, reads the partial value of the correlation accumulation result in the second memory, and adds Part of the relevant accumulation result value of the last operation is stored back to the same address of the second memory. The invention also discloses an ultra-wideband preamble receiving method, which can effectively reduce the dynamic power consumption, static power consumption and device area overhead of the correlator.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an ultra-wideband preamble receiver based on ultra-wideband (UWB) communication transmission technology. The invention also relates to a UWB preamble receiving method based on the ultra-wideband (UWB) communication transmission technology. Background technique [0002] In IEEE Standard 802.15.4-2011, an ultra-wideband (UWB PHY) communication technology system is proposed. The protocol describes the working system of the transceiver, and specifies the frame format (UWB PPDUFormat) for the format of the baseband data to be transmitted. Refer to figure 1 shown. In UWB PPDU, SHR consists of SYNC (synchronization frame) and SFD (starting position frame), structure reference figure 2 shown. The protocol stipulates that the SYNC part consists of two preambles of length 31 and 127, which are repeated multiple times. The preamble itself is composed of {+1,-1,0} ternary ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/16
CPCH04B1/16
Inventor 宋志豪
Owner 杭州易百德微电子有限公司
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