Invention Grant
- Patent Title: Coverage enhancement for time division duplex and enhanced interference mitigation and traffic adaptation in long term evolution systems
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Application No.: US15504172Application Date: 2015-08-12
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Publication No.: US10588125B2Publication Date: 2020-03-10
- Inventor: Moon-il Lee , Pouriya Sadeghi , Janet A. Stern-Berkowitz
- Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
- Applicant Address: US DE Wilmington
- Assignee: InterDigital Patent Holdings, Inc.
- Current Assignee: InterDigital Patent Holdings, Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Volpe and Koenig, P.C.
- International Application: PCT/US2015/044916 WO 20150812
- International Announcement: WO2016/025638 WO 20160218
- Main IPC: H04W72/04
- IPC: H04W72/04 ; H04L5/14 ; H04L1/18 ; H04W4/70 ; H04B7/26
Abstract:
Methods and systems are disclosed for use by a wireless transmit/receive unit (WTRU) operating in a coverage enhanced (CE) or coverage enhancement mode. The WTRU may receive a first Time Division Duplex (TDD) uplink (UL)/downlink (DL) subframe configuration and may receive a second TDD UL/DL subframe configuration. The WTRU may determine one or more subframes to use for receiving DL repetitions based on the first TDD UL/DL subframe configuration, and one or more subframes to use for transmitting UL repetitions based on the second TDD UL/DL subframe configuration. The WTRU may receive DL repetitions of a DL signal only in the determined one or more subframes for receiving DL repetitions, and may transmit UL repetitions of a UL signal only in the determined one or more subframes for transmitting UL repetitions. The WTRU may receive a TDD transmission using enhanced Interference Mitigation and Traffic Adaptation (eIMTA) capability.
Public/Granted literature
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