Method and device for preventing false detection of PDCCH and readable storage medium

A false detection and blind detection technology, which is applied to receiver-specific devices, error prevention, forward error control, etc., can solve problems such as unpredictable high-level status, downlink HARQ feedback errors, errors, etc., and improve user experience , Prevent PDCCH false detection, improve detection accuracy and the effect of system transmission efficiency
CN113259060AActive Publication Date: 2021-08-13BEIJING ZHILIANAN TECH
5 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING ZHILIANAN TECH
Publication Date
2021-08-13

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a method and a device for preventing false detection of a PDCCH and a readable access medium. The method comprises the following steps: performing hard decision on soft bit data output after performing rate de-matching on blind detection data; decoding and cyclic redundancy check are carried out on the soft bit data, and the data passing through the cyclic redundancy check are coded; comparing the coded data with a hard decision result, and calculating the ratio of different bits between the coded data and the hard decision result relative to soft bit data; when it is judged that the ratio is larger than or equal to a preset first threshold value and the blind detection data meet a first condition, or when the ratio is smaller than the preset first threshold value and the blind detection data meet a second condition, different bit numbers between bit information of the blind detection data and bit information of the PDCCH successfully detected last time in historical information are determined; determining a difference representation value according to different bit numbers; and determining that PDCCH false detection is generated when judging that the difference characterization value is greater than a second threshold value. According to the invention, the situation of false detection of the PDCCH can be prevented.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present disclosure relates to the technical field of wireless communication, and in particular to a method, device and readable storage medium for preventing PDCCH false detection. Background technique

[0002] The physical downlink control channel (PhysicalDownlinkControlChannel, PDCCH) is mainly used to carry various downlink control information (DownlinkControlInformation, DCI), its basic unit is the control channel element (ControlChannelElement, CCE), all user equipment (UserEquipment, UE) in the cell share CCE Space, each UE needs to perform blind detection on the CCE space to search out the control information of the UE. However, not all CCEs must be allocated to UEs, and some CCEs may not bear any data.

[0003] On the terminal side, since it does not know which CCEs are occupied by its own PDCCH, it detects the CCEs corresponding to all possible PDCCH candidates. When the CCE does not carry data, the terminal detects completely white nois...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More