公开(公告)号：US11388761B2

公开(公告)日：2022-07-12

申请号：US16572487

申请日：2019-09-16

Applicant: QUALCOMM Incorporated

Inventor： Saurabha Tavildar ,  Tingfang Ji ,  Gavin Bernard Horn ,  Ravi Agarwal ,  Keiichi Kubota

IPC: H04W4/00 ,  H04W76/11 ,  H04W24/08 ,  H04W72/04 ,  H04W48/12 ,  H04W48/14 ,  H04W52/02 ,  H04W48/20

Abstract: Aspects of the present disclosure provide various techniques for requesting a system information block (SIB) and providing a SIB response for a user equipment (UE) in a UE-centric wireless communication network. In some aspects of the disclosure, the network may transmit the SIB to the UEs in a broadcast mode or in an on-demand mode.

公开(公告)号：US20220078842A1

公开(公告)日：2022-03-10

申请号：US17454730

申请日：2021-11-12

Applicant: QUALCOMM INCORPORATED

Inventor： Sony Akkarakaran ,  Tao Luo ,  Keiichi Kubota

IPC: H04W74/00 ,  H04W74/08 ,  H04W72/04 ,  H04W48/12 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a request message to a base station while operating in an idle mode. The base station may generate, in response to the request message, a response message including a random access preamble index corresponding to the received request message. In some cases, the base station may determine a radio network temporary identifier (RNTI) based on the random access preamble index and scramble a cyclic redundancy check (CRC) of the response message with the RNTI. In some examples, the random access preamble index may be included in a payload of the response message. The UE may monitor a physical downlink control channel for the response message to the request message and receive the response message on the physical downlink control channel.

公开(公告)号：US11272412B2

公开(公告)日：2022-03-08

申请号：US16490699

申请日：2017-04-05

Applicant: Qualcomm Incorporated

Inventor： Aleksandar Damnjanovic ,  Keiichi Kubota ,  Linhai He ,  Gavin Bernard Horn ,  Peng Cheng

IPC: H04W36/10 ,  H04W36/00 ,  H04W36/30 ,  H04W36/36

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may autonomously initiate a handover procedure and select a target base station for the handover procedure. The UE may measure a signal from the source base station or the target base station, or both, and the UE may determine whether specific criteria at both base stations are within a pre-configured range. If the criteria at both base stations are within the pre-configured range, the UE may identify the target base station as a potential candidate for a handover. Accordingly, when the UE determines that radio conditions with the source base station are deteriorating (or fall below a threshold), the UE may initiate a handover to the target base station autonomously and without specific direction from the source base station.

公开(公告)号：US11240733B2

公开(公告)日：2022-02-01

申请号：US16343333

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Keiichi Kubota ,  Haris Zisimopoulos ,  Lenaig Genevieve Chaponniere ,  Masato Kitazoe ,  Gavin Bernard Horn ,  Arvind Santhanam ,  Ajith Tom Payyappilly ,  Xipeng Zhu

IPC: H04W48/06 ,  H04W76/25 ,  H04W76/27 ,  H04W28/02 ,  H04W72/12 ,  H04W80/12 ,  H04W48/08 ,  H04W48/10 ,  H04W48/02

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for enabling access control in a connected mode, idle mode, and an inactive state. An exemplary method generally includes receiving access control information associated with one or more services used by the UE for communicating with the wireless communications network, receiving a request to transmit traffic using the one or more services, checking a type of the traffic against the access control information, and scheduling the traffic for transmission if the type of the traffic satisfies one or more criteria in the access control information based on the checking.

公开(公告)号：US11228967B2

公开(公告)日：2022-01-18

申请号：US16562024

申请日：2019-09-05

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Peter Pui Lok Ang ,  Heechoon Lee ,  Keiichi Kubota

IPC: H04W48/14 ,  H04L5/00 ,  H04W24/08 ,  H04W72/04 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may obtain access to a base station by performing an initial access procedure within an initial access bandwidth. In some cases, the UE may monitor for a cell specific configuration in the initial access bandwidth that indicate one or more first common search spaces within the initial access bandwidth that the UE may monitor for control information. Additionally, the UE may receive dedicated signaling after the initial access procedure that indicates a downlink bandwidth part (BWP) and one or more second common search spaces within the downlink BWP to monitor for control information. Accordingly, the UE may monitor the first common search spaces, the second common search spaces, or both based on the dedicated signaling.

公开(公告)号：US20220007306A1

公开(公告)日：2022-01-06

申请号：US17467149

申请日：2021-09-03

Applicant: QUALCOMM Incorporated

Inventor： Peng Cheng ,  Keiichi Kubota ,  Gavin Bernard Horn ,  Aleksandar Damnjanovic ,  Tao Luo ,  Linhai He

IPC: H04W52/36 ,  H04W24/10 ,  H04W52/14 ,  H04W52/34 ,  H04W52/42

Abstract: New radio (NR) power headroom report (PHR) design for millimeter wave (mmWave) deployment is discussed. The power control process for mmWave may include beam-specific periodic PHR reporting and user equipment (UE)-specific event-trigger PHR reporting. The periodic PHR reporting may either provide a single PHR that includes power headroom information for each of the serving beams, or the UE may be configured to measure and report PHR for different beams in different slots. When reporting a single PHR with power headroom information for multiple serving beams, a beam index may be included in the reserved bits of the PHR. For the event-trigger PHR, the PHR reported based on a detected event trigger may provide power headroom information only for the current serving beam, or for all serving beams.

公开(公告)号：US11212807B2

公开(公告)日：2021-12-28

申请号：US16714486

申请日：2019-12-13

Applicant: QUALCOMM INCORPORATED

Inventor： Keiichi Kubota ,  Gavin Bernard Horn ,  Chih Ping Li

IPC: H04W72/04 ,  H04W72/10 ,  H04W36/22 ,  H04W76/27 ,  H04W48/16 ,  H04W48/18 ,  H04W48/20 ,  H04W36/30

Abstract: Systems and techniques are disclosed for selecting service-specific cells that considers additional information about service availability at the cells. A base station stores service availability information in system information. A UE searching for a service-specific cell on which to camp receives the system information with service availability. The UE analyzes its service requirements against the service availability as well as measured radio conditions and selects a cell that enables service-specific support on which to camp. When a change occurs to availability of the service support at the base station, it notifies the camped UE of the change and the UE obtains the changed system information to determine whether to reselect a different cell on which to camp. When a service-specific cell is not available, the UE may select a suitable cell for normal service and periodically perform cell reselection in an attempt to again camp on a service-specific cell.

公开(公告)号：US11140742B2

公开(公告)日：2021-10-05

申请号：US15621072

申请日：2017-06-13

Applicant: QUALCOMM Incorporated

Inventor： Keiichi Kubota ,  Gavin Bernard Horn ,  Luis Lopes ,  Masato Kitazoe

IPC: H04W76/28 ,  H04W52/02 ,  H04W72/04 ,  H04W48/08 ,  H04W72/12 ,  H04W88/08 ,  H04W48/02 ,  H04W48/20 ,  H04W68/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for cell DTX (Discontinuous Transmission) scheduling. A Base Station (BS) determines an operational schedule for the BS including at least one ON period and at least one OFF period, wherein the BS provides a reduced level of service during the at least one OFF period relative to the at least one ON period. The BS transmits the determined operational schedule. A User Equipment (UE) receives the BS's operational schedule and determines, based on the BS's operational schedule and its own operational schedule also including ON and OFF periods, whether to perform at least one service associated with the BS.

公开(公告)号：US11115903B2

公开(公告)日：2021-09-07

申请号：US16467029

申请日：2017-10-26

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Karl Georg Hampel ,  Gavin Bernard Horn ,  Keiichi Kubota ,  Ravi Agarwal ,  Peng Cheng

IPC: H04W48/10 ,  H04W36/00 ,  H04W72/00 ,  H04W36/24 ,  H04W72/04 ,  H04W84/04

Abstract: Various aspects of the disclosure relate to delivering a limited amount of system information. For example, the delivery of system information may be divided into broadcasting a limited amount of the system information and using unicast signaling for delivery of the remaining system information. In some aspects, the delivery of a limited amount of system information may involve broadcasting a compressed PLMN ID list (e.g., broadcasting indications of PLMNs). In some aspects, the delivery of a limited amount of system information may involve broadcasting an indication of the version of system information that is valid for a cell. In some aspects, the delivery of a limited amount of system information may involve broadcasting multiple configurations of system information along with indications of each configuration. In some aspects, the delivery of a limited amount of system information may involve broadcasting compressed non-cell-related system information.

公开(公告)号：US11071078B2

公开(公告)日：2021-07-20

申请号：US16704747

申请日：2019-12-05

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira Soriaga ,  Tingfang Ji ,  Yichao Huang ,  Naga Bhushan ,  Gavin Bernard Horn ,  Keiichi Kubota

IPC: H04W56/00 ,  H04W48/10 ,  H04W72/04 ,  H04L1/00 ,  H04W8/00 ,  H04W48/16

Abstract: Discovery and synchronization channels are discussed for user-tracking zones in a cellular network. User-tracking zones reduce the mobility tracking burden on the UE and shift the tracking responsibility to the network. This shift allows for UE and network power savings from reduced searching at the UE as well as through efficient paging area tracking and less broadcast signaling. The various aspects provide channel design for initial synchronization and discovery of the user-tracking zones. A single frequency network (SFN) synchronization channel is provided with at least a reference signal for time synchronization and payload information that may include a zone identifier (ID), formatting for a system information transmission request, and resource allocation for the request. The zone ID may be included in the payload or embedded into the reference signal. Facility is also provided for handling zone nodes of different power classes that allows for maintaining the SFN operations.