- Patent Title: Uplink-based user equipment tracking for connected inactive state
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Application No.: US15789650Application Date: 2017-10-20
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Publication No.: US10652851B2Publication Date: 2020-05-12
- Inventor: Usa Vilaipornsawai , Mohammadhadi Baligh , Keyvan Zarifi , Yicheng Lin
- Applicant: Usa Vilaipornsawai , Mohammadhadi Baligh , Keyvan Zarifi , Yicheng Lin
- Applicant Address: CN Shenzhen
- Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee Address: CN Shenzhen
- Main IPC: H04W64/00
- IPC: H04W64/00 ; H04W52/02 ; H04W76/27

Abstract:
Methods and devices for uplink-based User Equipment (UE) tracking for UEs operating in a connected inactive operating state are provided. A transmit-receive point (TRP) transmits parameters to a UE that allow the UE to uniquely determine a UE-specific tracking sequence and assigned time-frequency (TF) resource that are independent of a TRP identifier associated with the TRP. The UE determines the UE-specific tracking sequence and assigned TF resource based at least in part on the parameters received from the TRP. While in the connected inactive operating state, the UE transmits a tracking signal that includes the UE-specific tracking sequence in accordance with the assigned TF resource. The TRP receives the tracking signal from the UE, detects the UE in accordance with the UE-specific tracking sequence to produce a UE detection status, and transmits a tracking response to the UE in accordance with the UE detection status.
Public/Granted literature
- US20180124733A1 UPLINK-BASED USER EQUIPMENT TRACKING FOR CONNECTED INACTIVE STATE Public/Granted day:2018-05-03
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