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公开(公告)号:US20170359765A1
公开(公告)日:2017-12-14
申请号:US15486158
申请日:2017-04-12
Applicant: QUALCOMM Incorporated
Inventor: Amith Vikram CHINCHOLI , Valentin Alexandru GHEORGHIU , Masato KITAZOE , Hao XU
IPC: H04W36/36 , H04W24/10 , H04W36/00 , H04W56/00 , H04W76/04 , H04W36/30 , H04L12/26 , H04W36/08 , H04L5/00 , H04W76/02 , H04W88/08 , H04W88/02
CPC classification number: H04W36/36 , H04L5/0048 , H04L5/0057 , H04L43/16 , H04W24/10 , H04W36/0088 , H04W36/08 , H04W36/30 , H04W36/305 , H04W56/001 , H04W76/19 , H04W76/27 , H04W76/28 , H04W88/02 , H04W88/08
Abstract: Aspects of the present disclosure provide techniques and apparatus for user equipment initiated handover. Certain aspects include a method for wireless communications by a user equipment (UE) including determining a first signal metric between the UE and a first base station, while the UE has a connection established with the first base station. The method further includes determining a second signal metric between the UE and a second base station, while the UE does not have a connection established with the second base station. The method further includes determining that the second signal metric is stronger than the first signal metric. The method further includes declaring a radio link failure with the first base station based on determining that the second signal metric is stronger than the first signal metric. The method further includes establishing a connection with the second base station.
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公开(公告)号:US20170230780A1
公开(公告)日:2017-08-10
申请号:US15423524
申请日:2017-02-02
Applicant: QUALCOMM Incorporated
IPC: H04W4/00 , H04W72/04 , H04L5/14 , H04L5/16 , H04L1/00 , H04B17/336 , H04L29/08 , H04L12/26 , H04W24/10 , H04W24/08 , H04B17/318
CPC classification number: H04W4/70 , H04B7/0413 , H04B17/318 , H04B17/336 , H04L1/0036 , H04L1/0046 , H04L1/0067 , H04L1/0072 , H04L1/08 , H04L1/1812 , H04L1/20 , H04L5/0048 , H04L5/14 , H04L5/16 , H04L43/16 , H04L67/12 , H04L67/34 , H04W24/08 , H04W24/10 , H04W72/042
Abstract: Aspects of the present disclosure provide adaptive radio link monitoring for machine type communication(s) (MTC), enhanced MTC (eMTC), and/or narrowband Internet-of-Things (NB-IoT). In one aspect, a method is provided which may be performed by a user equipment (UE). The method generally includes receiving a first configuration of parameters for receiving downlink control channel signaling, the first configuration of parameters associated with a first coverage level; measuring at least one parameter related to channel conditions; determining one or more dynamic radio link monitoring (RLM) threshold values for the at least one parameter based, at least in part, on the first configuration of parameters; and performing RLM functions based on the one or more dynamic RLM threshold values. The threshold may comprise early out thresholds that occur before out-of-sync (OOS) or in-sync thresholds. The thresholds may be determined using lookup tables.
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