Invention Grant
- Patent Title: Phase rotation for in-band signal generation for narrow band transmission
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Application No.: US15445263Application Date: 2017-02-28
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Publication No.: US10313167B2Publication Date: 2019-06-04
- Inventor: Alberto Rico Alvarino , Chun-Hao Hsu , Xiao Feng Wang , Peter Gaal , Lei Xiao
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Nerrie M. Zohn
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04L27/20 ; H04L5/00 ; H04L27/26 ; H04W4/70 ; H04L25/02

Abstract:
In order to enable a UE receiving a narrowband signal transmitted using in-band resources to use the LTE reference signals to assist the UE in receiving the narrowband signal using an in-band deployment, a phase rotation employed by the base station may be fixed relative to a known reference position in time. An apparatus for wireless communication at a base station may determine a phase offset for a narrowband signal for transmission using wideband resources, the phase offset having a relationship to a reference point in time and transmit the narrowband signal using the determined phase offset. An apparatus for wireless communication at a UE may receive a narrowband signal having a frequency location within a wideband signal and rotate a symbol of the wideband signal by a per symbol phase offset having a relationship of the phase offset to a reference point in time.
Public/Granted literature
- US20180054340A1 PHASE ROTATION FOR IN-BAND SIGNAL GENERATION FOR NARROW BAND TRANSMISSION Public/Granted day:2018-02-22
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