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.

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

Inventor： Amith Vikram CHINCHOLI ,  Parvathanathan SUBRAHMANYA ,  Valentin Alexandru GHEORGHIU

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.