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Blind detection method and device and computer readable storage medium

A blind detection and to-be-detected technology, applied in the communication field, can solve the problem that the blind detection mechanism cannot be applied to the NB-IOT system, and achieve the effect of simplifying the PDCCH blind detection process, reducing power consumption and cost

Inactive Publication Date: 2019-05-21
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The physical downlink control channel (PDCCH) blind detection mechanism of the existing LTE system cannot be applied to the NB-IOT system

Method used

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  • Blind detection method and device and computer readable storage medium
  • Blind detection method and device and computer readable storage medium
  • Blind detection method and device and computer readable storage medium

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Embodiment Construction

[0037] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0038] With the development of wireless communication technology, in mobile network applications, the demand for traffic, the number of terminals, and the types of terminals all show an explosive growth trend. Cellular networks have covered most of the geographical locations in the world. Based on the existing cellular network, NB-IoT technology has the characteristics of wide coverage, multiple connections, low cost, and low power consumption, and has attracted more and more attention from all walks of life.

[0039] The frame and time slot structure of NB-IoT is similar to ...

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Abstract

The invention discloses a blind detection method and device and a computer readable storage medium, and the method comprises the steps: determining a candidate search space type and a candidate set tobe detected according to the pre-obtained maximum possible repetition frequency of a narrowband physical downlink control channel; Calculating the initial subframe position of the search space, and starting from the initial subframe position of the search space, carrying out blind detection on the received narrowband physical downlink control channel signal on the candidate search space accordingto the candidate set to be detected to obtain the format of the downlink control information. According to the invention, the candidate set to be detected is determined, blind detection is carried out on the received narrowband physical downlink control channel signal, times of a narrowband physical downlink control channel of an NB-IOT system is controlled, and NB-is simplified, the blind detection process of the NB-IOT system is simplified and the power consumption and cost of the terminal are reduced.

Description

technical field [0001] The present invention relates to but not limited to the technical field of communication, and in particular relates to a method and device for blind detection of a physical downlink control channel, and a computer-readable storage medium. Background technique [0002] The rapid development of the Internet of Things puts forward higher requirements for wireless communication technology. Narrowband Internet of Things (NarrowBand-Internet of Things, NB-IoT) technology is a low-power WAN (Low-Power Wide-Area Network, LPWA) solution. The NB-IoT protocol stack is designed based on the Long Term Evolution (LTE) system, but according to the requirements of the Internet of Things, some unnecessary functions are removed, and the overhead of the protocol stack processing process is reduced. It has wide coverage, multiple connections, and low cost. Low power consumption, low power consumption and other characteristics, more and more widely valued by all walks of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCY02D30/50
Inventor 高才陈玉
Owner SANECHIPS TECH CO LTD