公开(公告)号：US20240235691A1

公开(公告)日：2024-07-11

申请号：US18151229

申请日：2023-01-06

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Karoly Becze ,  Jing Sun ,  Xiaoxia Zhang ,  Junyi Li ,  Morteza Soltani ,  Deepu Alex ,  Jason Bush

IPC: H04B10/60 ,  H04B10/11

CPC classification number: H04B10/60 ,  H04B10/11

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support local light biasing for silicon photomultiplier (SiPM)-based photodetectors used in optical wireless communication (OWC). In a first aspect, a photodetector may include a silicon photomultipier (SiPM) having an input sensor configured to detect a light signal and an output interface configured to produce an output signal proportional to an intensity of the light signal detected at the input sensor, and a controllable light source positioned to emit a biasing light signal within a field of view of the input sensor, wherein the controllable light source is configured to emit the biasing light signal within a sensitivity range of the SiPM. When such photodetector is implemented in an OWC receiver, an analysis of the output signal allows the OWC receiver to adjust the biasing light at the controllable light source. Other aspects and features are also claimed and described.

公开(公告)号：US09544942B2

公开(公告)日：2017-01-10

申请号：US14470350

申请日：2014-08-27

Applicant: QUALCOMM Incorporated

Inventor： Sitaramanjaneyulu Kanamarlapudi ,  Sharif Matin ,  Deepu Alex ,  Ansah Ahmed Sheik

IPC: H04W76/04 ,  H04L1/18 ,  H04W52/02

CPC classification number: H04W76/27 ,  H04L1/1858 ,  H04W52/0212 ,  H04W52/0251 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164

Abstract: A method and apparatus for radio resource control (RRC) state transitions of a user equipment (UE) are provided. For the RRC state transitions of the UE, for example, a reconfiguration message is received at the UE while the UE is in a cell dedicated channel (CELL_DCH) state of the RRC states. The reconfiguration message is configured to transition the UE from the CELL_DCH state to a non-dedicated channel state of RRC states. A plurality of acknowledgement procedures is sent on an uplink to the network, in response to the received reconfiguration message causing the UE to transition from the CELL_DCH state to the non-dedicated channel state.

Abstract translation: 提供了一种用户设备（UE）的无线电资源控制（RRC）状态转换的方法和装置。 对于UE的RRC状态转换，例如，当UE处于RRC状态的小区专用信道（CELL_DCH）状态时，在UE处接收重配置消息。 重新配置消息被配置为将UE从CELL_DCH状态转换到RRC状态的非专用信道状态。 响应于接收到的重配置消息使得UE从CELL_DCH状态转换到非专用信道状态，在上行链路上向网络发送多个确认过程。