公开(公告)号：US10972920B2

公开(公告)日：2021-04-06

申请号：US13753213

申请日：2013-01-29

Applicant: QUALCOMM Incorporated

Inventor： Valentin Alexandru Gheorghiu ,  Masato Kitazoe ,  Brian Clarke Banister ,  Alexei Yurievitch Gorokhov ,  Tingfang Ji ,  Shivratna Giri Srinivasan ,  Amir Farajidana

IPC: H04W24/00 ,  H04L5/00 ,  H04W24/10 ,  H04L1/00

Abstract: Methods and apparatus for performing reference signal (RS) metric measurements in different parts of a channel bandwidth are described. One example method generally includes receiving signaling indicating one or more frequency bands within an operating frequency band of a current serving cell for performing reference signal (RS) metric measurements, performing the measurements on the one or more frequency bands, and reporting the measurements.

公开(公告)号：US10887830B2

公开(公告)日：2021-01-05

申请号：US16317958

申请日：2017-08-10

Applicant: Qualcomm Incorporated

Inventor： Gavin Bernard Horn ,  Xipeng Zhu ,  Wanshi Chen ,  Masato Kitazoe ,  Keiichi Kubota

IPC: H04W48/18 ,  H04W72/04 ,  H04W76/28 ,  H04W76/27 ,  H04L1/18 ,  H04W36/08 ,  H04W84/04

Abstract: Methods, systems, and devices for wireless communication are described that provide for sharing or isolating network resources between multiple cells in a system. Resources are allocated to multiple cells and multiplexed according to a time division multiplexing (TDM) scheme where a portion of a component carrier is shared between multiple cells. The allocation of resources also includes splitting or sharing a portion of the time resources between two or more cells such that a subframe is allocated as a subframe shared between multiple cells or as a subframe dedicated for use by only a single cell.

公开(公告)号：US20190386752A1

公开(公告)日：2019-12-19

申请号：US16437242

申请日：2019-06-11

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Masato Kitazoe ,  Timo Ville Vintola ,  Valentin Alexandru Gheorghiu

IPC: H04B17/12 ,  H04W76/11 ,  H04W52/52 ,  H04W72/04 ,  H04W8/26

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform a calibration to improve the accuracy, reliability, or both of signal transmissions. The UE may determine timing for the calibration procedure based on a received identifier for the UE (e.g., a radio network temporary identifier (RNTI), such as a cell RNTI (C-RNTI)). For example, the UE may determine a calibration offset between a reference time and a calibration gap according to an equation using at least the identifier as input. During the calibration gap, the UE may transmit a calibration signal using one or more antenna ports and may calibrate (e.g., adjust power amplification for) the one or more antenna ports based on an estimated actual transmit power for the calibration signal (e.g., received by other antenna ports of the UE or received by another device).

公开(公告)号：US10454520B2

公开(公告)日：2019-10-22

申请号：US15670697

申请日：2017-08-07

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Hao Xu ,  Alberto Rico Alvarino ,  Peter Gaal ,  Masato Kitazoe ,  Sharad Sambhwani

IPC: H04B1/713 ,  H04W76/27 ,  H04L1/00 ,  H04W4/70 ,  H04L5/00 ,  H04W68/00 ,  H04B1/7156 ,  H04W88/06 ,  H04W68/02 ,  H04W68/04 ,  H04W74/08

Abstract: Coverage enhancements and coverage mode switching related optimizations are discussed for user equipments (UEs) that may switch between various coverage extension (CE) and non-CE modes of operation. In such enhancements, paging uncertainty and delays may be reduced by sending pages either simultaneously or using historical information over multiple coverage modes available to UEs. Random access procedures may be improved by providing CE mode random access procedures that are available when normal mode random access attempts fail and before declaring radio link failure. Additional aspects include improvements for more advanced UEs to improve coverage within normal mode operations by leveraging techniques used for narrowband CE mode operations, including transmission repetition and gapless transmission scheduling over hopped narrowband frequencies.

公开(公告)号：US10448406B2

公开(公告)日：2019-10-15

申请号：US15269524

申请日：2016-09-19

Applicant: QUALCOMM Incorporated

Inventor： Masato Kitazoe ,  Gavin Bernard Horn ,  Jelena Damnjanovic

IPC: H04W72/04 ,  H04W72/08 ,  H04W88/06 ,  H04W84/04 ,  H04W8/24 ,  H04W92/20

Abstract: Certain aspects of the present disclosure relate to allocating user equipment (UE) processing capability among multiple access nodes. In an aspect, processing capability of a UE may be determined. When the UE is in communication with at least a first access node and a second access node, a first allocation of the UE processing capability for the first access node or a second allocation of the UE processing capability for the second access node may be determined. Resources may be assigned for the UE based at least in part on the first allocation or the second allocation. In an aspect, the first access node and the second access node may negotiate to determine the first allocation or the second allocation. In an aspect, the first allocation or the second allocation may be determined based on a previously-configured rule associated with a category of the UE.

公开(公告)号：US10231165B2

公开(公告)日：2019-03-12

申请号：US15138769

申请日：2016-04-26

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Aleksandar Damnjanovic ,  Peter Gaal ,  Tao Luo ,  Amir Aminzadeh Gohari ,  Masato Kitazoe

IPC: H04W40/24 ,  H04B17/318 ,  H04L29/08 ,  H04J11/00 ,  H04W48/18 ,  H04W16/14 ,  H04W72/08

Abstract: Methods, systems, and devices for radio resource management (RRM) measurement and reporting for license assisted access (LAA) cells operating in unlicensed or shared frequency spectrum are described. A user equipment (UE) may receive an RRM measurement configuration including a channel occupancy parameter for measuring neighbor cells of a shared frequency band. The channel occupancy parameter may be used to determine a channel occupancy metric that may be sent to a base station for cell selection. The channel occupancy metric may include an averaged or filtered received signal strength and may be reported for serving cells and/or intra-frequency neighbor cells. A base station may further configure a UE with a discovery reference signals (DRS) measurement timing configuration (DMTC), which may include an extended DMTC search window. The UE may search for DRS transmissions from neighbor cells according to the DMTC.

公开(公告)号：US20180359724A1

公开(公告)日：2018-12-13

申请号：US16103777

申请日：2018-08-14

Applicant: QUALCOMM Incorporated

Inventor： Masato Kitazoe ,  Nathan Edward Tenny ,  Francesco Grilli

IPC: H04W68/02 ,  H04W48/12

CPC classification number: H04W68/02 ,  H04W48/12 ,  H04W72/005

Abstract: Systems and methodologies are described that facilitate notifying and detecting modification of system information in a wireless communication system. A mobile device may detect an inability to receive a paging message transmitted by a base station during a first time period, receive at least one system information block (SIB) transmitted by the base station during a second time period, and determine whether to receive one or more additional SIBs transmitted by the base station in the second time period based on information obtained from the at least one SIB received. The mobile device may detect an inability to receive a paging message upon entering a cell from being out of service or upon initial device starting up. The mobile device may determine whether to receive one or more additional SIBs by comparing a value tag of the at least one SIB received to a previously stored value tag.

公开(公告)号：US10091762B2

公开(公告)日：2018-10-02

申请号：US14639790

申请日：2015-03-05

Applicant: QUALCOMM Incorporated

Inventor： Masato Kitazoe ,  Nathan Edward Tenny ,  Francesco Grilli

IPC: H04M11/00 ,  H04W68/02 ,  H04W48/12 ,  H04W72/00

Abstract: Systems and methodologies are described that facilitate notifying and detecting modification of system information in a wireless communication system. A mobile device may detect an inability to receive a paging message transmitted by a base station during a first time period, receive at least one system information block (SIB) transmitted by the base station during a second time period, and determine whether to receive one or more additional SIBs transmitted by the base station in the second time period based on information obtained from the at least one SIB received. The mobile device may detect an inability to receive a paging message upon entering a cell from being out of service or upon initial device starting up. The mobile device may determining whether to receive one or more additional SIBs by comparing a value tag of the at least one SIB received to a previously stored value tag.

公开(公告)号：US10085300B2

公开(公告)日：2018-09-25

申请号：US15040702

申请日：2016-02-10

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Hao Xu ,  Miguel Griot ,  Peter Gaal ,  Masato Kitazoe ,  Wanshi Chen ,  Yongbin Wei

IPC: H04W76/28 ,  H04W24/08 ,  H04W4/70

CPC classification number: H04W76/28 ,  H04W4/70 ,  H04W24/08 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/24

Abstract: Methods, systems, and devices for wireless communication are described. Wireless devices may operate in an extended connected discontinuous reception (eDRX) mode to increase energy efficiency and extend battery life. Control signaling may be used to initiate or support the extended sleep cycles associated with eDRX operation. In some cases, a system frame number (SFN) extension may be implemented to record frame cycles and differentiate SFNs that occur in a first frame cycle from SFNs that occur in a second frame cycle. Control techniques to support eDRX operation and maintain network synchronicity and compatibility may also be employed. In some examples, a wireless system may broadcast extended or dedicated system information updates to an eDRX capable device or devices. In some cases, devices may adjust the rate at which radio link monitoring (RLM) measurements are taken to timely determine radio link failures (RLFs) in conjunction with eDRX operation.

公开(公告)号：US10045394B2

公开(公告)日：2018-08-07

申请号：US15077855

申请日：2016-03-22

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Miguel Griot ,  Masato Kitazoe

IPC: H04W76/28 ,  H04W68/00 ,  H04W72/04 ,  H04W72/00 ,  H04W56/00 ,  H04W72/08

Abstract: Aspects of the present disclosure provide techniques that may be used wireless network communication devices to support devices operating with extended discontinuous reception (eDRX). An exemplary method, performed by a BS, generally includes determining at least one paging hyper-frame for paging a user equipment (UE) based on an identification (ID) of the UE, the paging hyper-frame determined from a set of periodically occurring hyper-frames that each span a number of radio frames, receiving a request to page the UE, and transmitting a paging signal to the UE in at least one subframe within a radio frame of the paging hyper-frame. Another exemplary method, performed by a UE, generally includes determining at least one paging hyper-frame for monitoring for a paging signal from a base station (BS) based on an identification (ID) of the UE, the paging hyper-frame determined from a set of periodically occurring hyper-frames that each span a number of radio frames, and monitoring for the paging signal in at least one subframe within a radio frame of the paging hyper-frame.