Invention Grant
- Patent Title: DC subcarrier handling in narrowband devices
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Application No.: US14877741Application Date: 2015-10-07
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Publication No.: US10200872B2Publication Date: 2019-02-05
- Inventor: Iyab Issam Sakhnini , Hao Xu , Peter Gaal
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Holland & Hart LLP/Qualcomm
- Main IPC: H04W16/12
- IPC: H04W16/12 ; H04L27/26 ; H04L5/00 ; H04W4/70

Abstract:
Methods, systems, and devices are described for direct current (DC) subcarrier handling for narrowband user equipment (UE). A UE may identify a narrow bandwidth region allocated for operation within a wide bandwidth carrier, determine that the narrow bandwidth region is centered about a different frequency than a center subcarrier of the wide bandwidth carrier, and, accordingly, select an operating mode. Various operating modes may include down-converting a carrier frequency of the allocated narrow bandwidth region. A base station may support narrowband UE operation by determining that the narrow bandwidth region is centered about a different frequency than a center subcarrier of the wide bandwidth carrier and rate matching subcarriers of the narrow bandwidth region around tones of a center frequency of the narrow bandwidth region.
Public/Granted literature
- US20160105803A1 DC SUBCARRIER HANDLING IN NARROWBAND DEVICES Public/Granted day:2016-04-14
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