Invention Grant
- Patent Title: System, method, and product for selecting timing information based on subcarrier spacing
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Application No.: US16480272Application Date: 2018-03-14
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Publication No.: US11265837B2Publication Date: 2022-03-01
- Inventor: Jie Cui , Yang Tang , Rui Huang , Yuan Zhu
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Stoel Rives LLP
- International Application: PCT/US2018/022409 WO 20180314
- International Announcement: WO2018/175176 WO 20180927
- Main IPC: H04W56/00
- IPC: H04W56/00 ; H04L5/00 ; H04W8/08 ; H04W36/08
Abstract:
User equipment performs autonomous time adjustment that includes selecting a Timing Error Limit (i.e. Te_NR) and Maximum Autonomous Time Adjustment Step (i.e. Tq_NR) based on bandwidth (BW) and subcarrier spacing (SCS). In one embodiment, given a certain downlink BW, if the SCS=x(kHz) and the Te_NR of this SCS is N, then the Te_NR of SCS=x/2(kHz) is 2*N. Given a certain downlink BW, if the SCS=x(kHz) and the Te_NR of this SCS is N, then the Te_NR of SCS=2*x(kHz) is N/2. For example, given BW=10 MHz, if the Te_NR of SCS=30kHz is n*Ts_NR (TS_NR is the basic timing unit for NR system), then the Te_NR of SCS=60 kHz is N/2*Ts_NR, and the Te_NR of SCS=15 kHz is 2*N*Ts_NR.
Public/Granted literature
- US20190394741A1 SYSTEMS, METHODS AND DEVICES FOR SELECTING CELLULAR TIMING CONFIGURATIONS Public/Granted day:2019-12-26
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