Invention Grant
- Patent Title: Downlink data repeat transmission method and device
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Application No.: US15572445Application Date: 2016-04-01
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Publication No.: US10382113B2Publication Date: 2019-08-13
- Inventor: Xuejuan Gao , Yanan Lin
- Applicant: China Academy of Telecommunications Technology
- Applicant Address: CN Beijing
- Assignee: China Academy of Telecommunications Technology
- Current Assignee: China Academy of Telecommunications Technology
- Current Assignee Address: CN Beijing
- Agency: Foley & Lardner LLP
- Priority: CN201510233136 20150508
- International Application: PCT/CN2016/078321 WO 20160401
- International Announcement: WO2016/180097 WO 20161117
- Main IPC: H04B7/06
- IPC: H04B7/06 ; H04L1/00 ; H04L5/00 ; H04W72/04 ; H04W72/00

Abstract:
Disclosed in the present invention are a downlink data repeat transmission method and device for addressing a problem in which, when resource mapping is performed in different subframes in a repeat transmission, the numbers of available REs are different, and as a result data cannot be combined when performing repeat transmission of multiple subframes. The method comprises: determining a subframe set of a repeat transmission physical downlink channel; in each subframe of the determined subframe set, and when performing a resource mapping on the physical downlink channel, starting mapping from a specific start character position in a first time slot of the current subframe and mapping to all resources except for a resource corresponding to a reference signal used for demodulation; and transmitting the physical downlink channel according to the resource mapping manner.
Public/Granted literature
- US20180131430A1 DOWNLINK DATA REPEAT TRANSMISSION METHOD AND DEVICE Public/Granted day:2018-05-10
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