Invention Grant
- Patent Title: Discontinuous reception alignment in dual connectivity networks
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Application No.: US16831414Application Date: 2020-03-26
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Publication No.: US11564283B2Publication Date: 2023-01-24
- Inventor: Satish Chandra Jha , Ali T. Koc , Kathiravetpillai Sivanesan , Rath Vannithamby
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- Main IPC: H04W52/02
- IPC: H04W52/02 ; H04W4/00 ; H04W76/28 ; H04L5/00 ; H04W76/15 ; H04W88/06

Abstract:
A 3GPP LTE protocol enhancement realizes the full benefit of discontinuous reception (DRX) in Long Term Evolution networks by coordinating and aligning DRX operations for conserving power and timing overhead. A dual connectivity enabled User Equipment (UE) comprising a processor and transceiver is configured to align DRX configuration between counterpart Evolved Node Bs (eNB)s, wherein counterpart eNBs are a Master eNB (MeNB) and a Secondary eNB (SeNB) simultaneously connected to the UE, communicate system frame timing and system frame number (SFN) information between the counterpart eNBs, align DRX start offset (drxStartOffset) values for the counterpart eNBs according to the communicated system frame timing and SFN information to compensate for offsets in system frame timing, and allow the start of a DRX ON duration at specific frame or sub-frame times determined by the drxStartOffset values, after the expiration of a DRX inactivity timer.
Public/Granted literature
- US20200296790A1 Discontinuous Reception Alignment in Dual Connectivity Networks Public/Granted day:2020-09-17
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