公开(公告)号：US10925094B2

公开(公告)日：2021-02-16

申请号：US15956932

申请日：2018-04-19

Applicant: QUALCOMM Incorporated

Inventor： Shimman Arvind Patel ,  Wanshi Chen ,  Seyedkianoush Hosseini ,  Alberto Rico Alvarino

IPC: H04W4/00 ,  H04W74/08 ,  H04W72/04 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communication are described that provide scheduling request (SR) resources that may be used by a user equipment (UE) to request uplink resources. SR resources may be allocated within random access channel resources, and a UE may use the SR resources to transmit a SR. The random access resources may be allocated in a first duration transmission time interval (TTI) that has a duration that is shorter than a second duration TTI. The SR resources may be a subset of random access preambles associated with the random access resources.

公开(公告)号：US10924997B2

公开(公告)日：2021-02-16

申请号：US16739674

申请日：2020-01-10

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Mungal Singh Dhanda ,  Alberto Rico Alvarino ,  Hao Xu ,  Wanshi Chen ,  Xiao Feng Wang

IPC: H04W28/08 ,  H04W52/02 ,  H04W72/08 ,  H04W76/28 ,  H04L5/00 ,  H04W72/12 ,  H04W72/04 ,  H04W24/02 ,  H04W48/16 ,  H04W74/00

Abstract: Techniques described herein use a wakeup signal to indicate to a user equipment (UE) whether an upcoming control channel signal resource includes information relevant to the UE. In this way, the UE can wake up to perform complex control channel signal processing only when the control channel includes signals relevant to the UE, thereby conserving battery power and resources of the UE. Such techniques are particularly suited to MTC UEs, NB-IoT UEs, and/or the like, which may communicate with a network only occasionally, and which may be located in remote locations where changing or recharging a battery is difficult.

公开(公告)号：US10917880B2

公开(公告)日：2021-02-09

申请号：US16414269

申请日：2019-05-16

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Wanshi Chen ,  Alberto Rico Alvarino ,  Hao Xu ,  Peter Gaal ,  Seyed Ali Akbar Fakoorian ,  Madhavan Srinivasan Vajapeyam

IPC: H04W72/04 ,  H04L5/00 ,  H04W74/08 ,  H04B7/06 ,  H04W72/12 ,  H04J13/00

Abstract: Techniques are described for wireless communication. A method for wireless communication at a base station includes identifying time resources and frequency resources for narrowband communication in a plurality of subframes, identifying a plurality of user equipment (UE) devices, allocating a first portion of the time resources and the frequency resources to an uplink (UL) channel to carry UL control information, and allocating resources of the UL channel to the identified UE devices. A method for wireless communication at a UE device includes identifying time resources and frequency resources for narrowband communication in a plurality of subframes, receiving an indication of at least a first portion of the time resources and the frequency resources allocated to a UL channel to carry UL control information for the UE device, and transmitting one or both of downlink acknowledgements (ACKs) and downlink non-acknowledgements (NAKs) on the UL channel.

公开(公告)号：US20210014864A1

公开(公告)日：2021-01-14

申请号：US16926164

申请日：2020-07-10

Applicant: QUALCOMM Incorporated

Inventor： Umesh Phuyal ,  Mungal Singh Dhanda ,  Ayan Sengupta ,  Alberto Rico Alvarino ,  Le Liu

IPC: H04W72/04 ,  H04W72/14 ,  H04W76/36 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described. that support preconfigured uplink resources (PUR) in wireless communications. A base station may communicate that support for PUR is available, and may allocate PUR resources to a user equipment (UE) based on requests from the UE. The UE may receive an indication that the base station supports PUR, such as via a system information block (SIB), determine to request PUR, and transmit a PUR request message to the base station. A PUR response from the base station may indicate configuration, or reconfiguration of PUR allocation for the UE that may be used for uplink transmissions, or release of the PUR allocation.

公开(公告)号：US10893523B2

公开(公告)日：2021-01-12

申请号：US15635000

申请日：2017-06-27

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tamer Kadous ,  Chih-Hao Liu ,  Chirag Patel ,  Alberto Rico Alvarino

IPC: H04W72/04 ,  H04W74/08 ,  H04W4/70 ,  H04W28/26 ,  H04W16/14 ,  H04W88/02 ,  H04W88/08 ,  H04L1/12 ,  H04B1/713 ,  H04L1/18 ,  H04L29/08 ,  H04L5/00 ,  H04L5/14

Abstract: A method and apparatus for wireless communication in the unlicensed spectrum between an eNB and UEs having different bandwidths, e.g., between a narrowband UE and a wideband eNB. A base station apparatus may perform a dual CCA procedure for a frame, wherein the dual CCA procedure comprises a first type of CCA procedure followed by a second type of CCA procedure when the first type of CCA procedure is unsuccessful. The apparatus may transmit during the frame when at least one CCA procedure of the dual CCA procedure is successful and may refrain from transmitting during the frame when both CCA procedures of the dual CCA procedure are unsuccessful. In performing the dual CCA procedure, the apparatus may perform CCA for a first period of time then perform eCCA for a second period of time following the CCA, when the CCA is unsuccessful.

公开(公告)号：US20200351848A1

公开(公告)日：2020-11-05

申请号：US16931725

申请日：2020-07-17

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Wanshi Chen ,  Hao Xu

IPC: H04W72/04 ,  H04L5/00 ,  H04W52/02 ,  H04W72/12

Abstract: Various devices, methods, and processes are provided for handling conflicting and/or redundant power control and triggering information for transmitting reference signal(s) such as sounding reference signal (SRS) using carrier aggregation (CA). A user equipment (UE) receives a first downlink control information (DCI) and a second DCI including SRS control information that is in conflict with that of the first DCI, for controlling SRS transmission on a component carrier (CC). The UE determines a resolution to reconcile the conflict between the DCIs. Then the UE can transmit an SRS on the CC in accordance with the resolution.

公开(公告)号：US20200337066A1

公开(公告)日：2020-10-22

申请号：US16921659

申请日：2020-07-06

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Wanshi Chen ,  Peter Gaal

IPC: H04W72/12 ,  H04L5/00 ,  H04W52/32 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A method at a user equipment (UE) includes receiving signaling that indicates a carrier aggregation (CA) configuration (having carriers configured for UL and downlink (DL) data transmissions) and an auxiliary uplink (UL) configuration (having carriers configured for UL reference signal transmissions). The method also includes receiving a resource assignment on a DL carrier of the CA configuration, and transmitting an aperiodic sounding reference signal (A-SRS) using the one or more carriers of the auxiliary UL configuration based at least in part on the received resource assignment. Another method is performed by a UE having a CA configuration and an A-SRS configuration, including receiving a resource assignment on a DL carrier in the CA configuration, detecting a trigger for transmitting an A-SRS, determining UL resources of the A-SRS configuration for transmitting the A-SRS, and transmitting the A-SRS on the determined UL resources.

公开(公告)号：US10764908B2

公开(公告)日：2020-09-01

申请号：US16377742

申请日：2019-04-08

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Peter Gaal ,  Wanshi Chen ,  Hao Xu

IPC: H04W72/12 ,  H04L5/00 ,  H04W4/70 ,  H04B3/36 ,  H04B7/0413 ,  H04L5/14 ,  H04W8/08 ,  H04W16/32 ,  H04W72/04 ,  H04W72/14 ,  H04L12/70 ,  H04W88/12

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and more specifically to a method for machine type communications involving identifying one or more subframes, within at least one radio frame, unavailable for bundled transmissions across multiple subframes and communicating, via at least one narrowband region within a wider system bandwidth, using bundled transmissions across multiple subframes based on the identification.

公开(公告)号：US10756791B2

公开(公告)日：2020-08-25

申请号：US16443559

申请日：2019-06-17

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino

IPC: H01B7/02 ,  H04B7/0456 ,  H04L27/26 ,  H04B7/06 ,  H04L5/00 ,  H04L1/00 ,  H04B7/0452

Abstract: Methods, systems, and devices for wireless communications are described that provide for multiple-input multiple-output (MIMO) transmissions of control information using downlink control channel resources, such as physical downlink control channel (PDCCH) resources. The MIMO transmissions may provide control channel transmissions to multiple UEs using the same time-frequency resources. A base station may use a subset of control channel monitoring entities for MIMO control channel transmissions, and another subset of control channel monitoring candidates for non-MIMO control channel transmissions. Control channel monitoring entities for MIMO transmissions may be defined separately from non-MIMO or legacy control channel candidates.

公开(公告)号：US10728914B2

公开(公告)日：2020-07-28

申请号：US15149565

申请日：2016-05-09

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Alberto Rico Alvarino ,  Wanshi Chen ,  Michael Mao Wang ,  Hao Xu

IPC: H04W72/12 ,  H04B1/713 ,  H04W4/00 ,  H04W72/04 ,  H04W16/32 ,  H04L5/00 ,  H04W4/70 ,  H04W88/12

Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to determining uplink narrowband regions based on downlink resources. An example method generally includes identifying one or more uplink narrowband regions within a wider system bandwidth, based on downlink resources, and communicating using at least one of the identified narrowbands.