False detection filtering method and device, storage medium and receiver

A filtering method and false detection technology, applied in the field of communications, can solve the problems of wasting time, adverse effects on the system, and reducing efficiency.

Pending Publication Date: 2020-10-20
RDA MICROELECTRONICS SHANGHAICO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In addition, since the physical broadcast channel (Physical Broadcast Channel, PBCH for short) and the physical downlink control channel (Physical Downlink Control Channel, PDCCH for short) have fewer cyclic redundancy check (Cyclic Redundancy Check, CRC for short) bits, and because Multiple decoding and verification attempts will lead to the problem of high probability of false detection, resulting in reduced efficiency, waste of time, and adverse effects on the system

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  • False detection filtering method and device, storage medium and receiver
  • False detection filtering method and device, storage medium and receiver
  • False detection filtering method and device, storage medium and receiver

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Embodiment Construction

[0024] As mentioned in the background art, in the narrowband Internet of Things system, due to the need to support limit coverage, the communication system needs to work at a low or extremely low signal-to-noise ratio. Moreover, the frequency domain resource of the narrowband system is very limited, and the transmitting end usually adopts the method of repeated transmission in the time domain to enable the communication system to work under low or extremely low signal-to-noise ratio. In order to obtain the information sent by the sending end as quickly and correctly as possible, the receiving end usually needs to perform multiple soft combining and decoding checks on the received time-domain repetitive signals to restore the sent information.

[0025] On the other hand, the physical broadcast channel (PBCH) carries a master information block (Master Information Block, MIB for short). It contains the most basic information of the cell, such as the superframe number, the schedul...

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Abstract

The invention discloses a false detection filtering method and device, a storage medium and a receiver. The method comprises the following steps: decoding and verifying to-be-processed data; if the verification is passed, encoding the decoded data obtained by decoding to obtain encoded data; comparing the encoded data with the to-be-processed data bit by bit, and counting the number of error bits;and determining whether a decoding verification result of the to-be-processed data is false detection or not according to the number of the error bits. Through the scheme of the invention, the falsedetection probability can be effectively reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a false detection filtering method and device, a storage medium, and a receiver. Background technique [0002] In the narrowband Internet of Things system, due to the need to support extreme coverage, the communication system needs to work under low or extremely low Signal to Noise Ratio (SNR). Moreover, the frequency domain resource of the narrowband system is very limited, and the transmitting end usually adopts the method of repeated transmission in the time domain to enable the communication system to work under low or extremely low signal-to-noise ratio. In order to obtain the information sent by the sending end as quickly and correctly as possible, the receiving end usually needs to perform multiple soft combining and decoding checks on the received time-domain repetitive signals to restore the sent information. [0003] In addition, since the number of cycl...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/20
CPCH04L1/004H04L1/0046H04L1/0047H04L1/203
Inventor 王琤张凯杨殷
Owner RDA MICROELECTRONICS SHANGHAICO LTD
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