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Channel blind detection method and device, communication device and storage medium

A blind detection and channel technology, applied in the field of communication, can solve the problems of large amount of calculation, large cache, occupation, etc., achieve the effect of reducing the amount of cache and calculation, and improving the efficiency of blind detection

Pending Publication Date: 2021-01-08
BEIJING SIGBEAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the blind detection method in the prior art needs to occupy a relatively large cache, and at the same time, the amount of calculation is relatively large

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  • Channel blind detection method and device, communication device and storage medium
  • Channel blind detection method and device, communication device and storage medium
  • Channel blind detection method and device, communication device and storage medium

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Embodiment Construction

[0051] The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. The present invention can be fully understood by those skilled in the art without the description of these detailed parts. In order not to obscure the essence of the present invention, well-known methods, procedures, procedures, components and circuits have not been described in detail.

[0052] Additionally, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0053] Unless the context clearly requires, the words "including", "including" and similar words in the description should be interpreted as inclusive rather than exclusive or exhaustive; that is, "including but not limited to".

[0054] In the description of the present invention, it shoul...

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Abstract

The invention discloses a channel blind detection method and device, a communication device and a storage medium. The method comprises the following steps: receiving a sub-frame signal sent by a narrowband physical broadcast channel (NPBCH) in a sub-period, obtaining a first bit sequence corresponding to the sub-frame signal under the number of candidate antenna ports and a candidate sub-period frame header index, and determining an initial position of the first bit sequence according to the candidate sub-period frame header index, performing rate de-matching on the first bit sequence according to the initial position to obtain a second bit sequence, and performing decoding and verification processing on the second bit sequence to obtain a verification result, and determining the number ofthe candidate antenna ports and the candidate sub-period frame header index corresponding to the third bit sequence with the correct verification result as the number of the antenna ports and the sub-period frame header index corresponding to the sub-frame signal. Therefore, the cache and calculated amount of rate de-matching can be reduced, and the blind detection efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a channel blind detection method and device, a communication device and a storage medium. Background technique [0002] The NB-IoT (Narrow Band Internet of Things) system has the characteristics of low speed, low power consumption, low cost, high capacity, wide coverage, and multiple connections. NB-IoT's NPBCH (Narrowband physical broadcast channel, narrowband physical broadcast channel) is used to carry the MIB-NB (masterinformation block-Narrow Band, narrowband master information block) of system broadcast information. MIB-NB information includes scheduling information and operation mode type of SIB1 (System Information Block, system information block). [0003] After the sender of the downlink control information determines the relevant data to be sent, CRC (Cyclic Redundancy Check, cyclic redundancy check code) check, channel coding, rate matching, wrapping, m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04B7/0456H04L25/02
CPCH04L1/0038H04L1/0061H04L1/0067H04L1/0052H04L1/0071H04B7/0456H04L25/0224H04L25/0256Y02D30/70
Inventor 任江涛邓敬贤胡剑锋张国松
Owner BEIJING SIGBEAN INFORMATION TECH CO LTD