公开(公告)号：US10986666B2

公开(公告)日：2021-04-20

申请号：US14137468

申请日：2013-12-20

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Osok Song ,  Tao Luo ,  Hao Xu ,  Yongbin Wei ,  Alan Barbieri ,  Durga Prasad Malladi

IPC: H04W74/08 ,  H04W28/18

Abstract: Certain aspects of the present disclosure provide various mechanisms that allow a user equipment to convey information regarding one or more attributes to a base station during a random access (RA) procedure. The attributes may include, for example a capability of the UE (e.g., to support a particular feature or version of a standard) or a condition of the UE (e.g., if it is currently experiencing an interference condition).

公开(公告)号：US20210111848A1

公开(公告)日：2021-04-15

申请号：US17099181

申请日：2020-11-16

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Shimman Arvind Patel ,  Yongbin Wei ,  Aleksandar Damnjanovic ,  Hao Xu

IPC: H04L5/00

Abstract: Control information may be transmitted for different TTI lengths. Different control information for the different TTIs may be transmitted using control channel resources that are established for communication of control information, such as a physical downlink control channel (PDCCH), for example. Control information for a first TTI may be located in a first set of resources, and control information for a second TTI may be located in a second set of resources. The first set of resources may be located within a first search space that may be searched by a user equipment (UE) to identify the first control information. The second set of resources may be located within a second search space that may be searched by the UE to identify the second control information.

公开(公告)号：US10973084B2

公开(公告)日：2021-04-06

申请号：US16683879

申请日：2019-11-14

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Srinivas Yerramalli ,  Juan Montojo ,  Yongbin Wei ,  Peter Gaal ,  Wanshi Chen ,  Alberto Rico Alvarino

IPC: H04W72/00 ,  H04W84/18 ,  H04B1/713 ,  H04L1/00 ,  H04L29/08 ,  H04W4/70 ,  H04W16/16 ,  H04W28/02 ,  H04W84/10 ,  H04W92/18 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for wireless communication, and more particularly, to design principles for extending Internet of Things (IoT) (e.g., narrowband IoT (NB-IoT), machine type communication(s) (MTC), etc.) into an unlicensed radio frequency (RF) band spectrum. In certain aspects, the method generally includes determining an interlace structure of tones, within an unlicensed radio frequency (RF) spectrum, available to a wireless node for communication, and communicating based on the interlace structure. In some aspects, the communicating involves hopping between tones within the interlace structure during different communication intervals.

公开(公告)号：US10952154B2

公开(公告)日：2021-03-16

申请号：US16593054

申请日：2019-10-04

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Peter Gaal ,  Timo Ville Vintola ,  Hao Xu

IPC: H04W52/24 ,  H04W72/12 ,  H04W52/28 ,  H04W52/14 ,  H04L5/00 ,  H04B17/345 ,  H04B7/06 ,  H04B17/14 ,  H04B17/11 ,  H04L5/14 ,  H04W52/36

Abstract: Aspects of the present disclosure provide techniques for managing unwanted transmissions by a wireless communications device, such as spurious transient transmissions caused by changing a power level of a transmitter. An exemplary method includes determining, based on one or more parameters, an action to reduce an impact of a spurious transmission by the UE, wherein the spurious transmission relates to at least one of changing a transmit power level at the UE or switching one or more radio components at the UE, and taking the determined action to reduce the impact.

公开(公告)号：US10939301B2

公开(公告)日：2021-03-02

申请号：US16276444

申请日：2019-02-14

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Wanshi Chen

IPC: H04W16/14 ,  H04W74/08 ,  H04W4/70 ,  H04W72/04

Abstract: Aspects of the present disclosure provide techniques utilizing shared radio frequency spectrum (SRFS) for certain devices, such as machine type communication(s) (MTC) user equipments (UEs) and evolved or enhanced MTC (eMTC) UEs. An exemplary method, performed, for example, by a base station (BS), includes performing a channel clear assessment (CCA) for at least a portion of the SRFS including one or more narrowband regions, and communicating with at least one MTC UE, after performing the CCA, on at least one of the narrowband regions. A second exemplary method, performed, for example, by a MTC UE, generally includes receiving, from a BS, an assignment of resources in a narrowband region of the SRFS band for the MTC UE to use for communicating with the BS, and communicating with the BS on the narrowband region without performing a CCA for the narrowband region. A third exemplary method, performed, for example, by a MTC UE, generally includes performing a CCA for a narrowband region of the SRFS band and communicating with a BS on the narrowband region.

公开(公告)号：US10932256B2

公开(公告)日：2021-02-23

申请号：US15183702

申请日：2016-06-15

Applicant: QUALCOMM Incorporated

Inventor： Yongbin Wei ,  Durga Prasad Malladi ,  Hao Xu

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00

Abstract: Aspects of the present invention relate to wireless communications by a user equipment (UE), comprising, identifying resources in a narrowband region, the narrowband region spanning no more than a single resource block in a transmission time interval (TTI) and communicating with a base station using the identified resources.

公开(公告)号：US20210050865A1

公开(公告)日：2021-02-18

申请号：US16968920

申请日：2019-02-14

Applicant: Jian LI ,  Changlong XU ,  Liangming WU ,  Kai CHEN ,  Hao XU ,  Jing JIANG ,  Joseph Binamira SORIAGA ,  Qualcomm Incorporated

Inventor： Jian Li ,  Changlong Xu ,  Liangming Wu ,  Kai Chen ,  Hao Xu ,  Jing Jiang ,  Joseph Binamira Soriaga

IPC: H03M13/13 ,  H04L1/08 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device, such as a base station or a user equipment (UE), may generate a first set of encoded bits using a polar code. The transmitting device may transmit the first set of encoded bits to a receiving device, but the receiving device may unsuccessfully receive the transmission. The transmitting device may prepare a retransmission by generating a second set of encoded bits. In some cases, the transmitting device may copy information bits from the first transmission to polarized channels when generating the polar code for the retransmission. The transmitting device may copy information bits based on how the information bits were assigned for the first transmission as well as the block length. The transmitting device may copy information bits such that the retransmission is self-decodable.

公开(公告)号：US10904865B2

公开(公告)日：2021-01-26

申请号：US16129452

申请日：2018-09-12

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Aleksandar Damnjanovic ,  Onkar Jayant Dabeer ,  Peter Gaal ,  Wanshi Chen ,  Shimman Arvind Patel ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W4/00 ,  H04W72/04 ,  H04W28/02 ,  H04W72/14 ,  H04W74/08 ,  H04L1/18 ,  H04W74/00 ,  H04L5/00 ,  H04W76/27 ,  H04J11/00 ,  H04W72/12 ,  H04W74/02

Abstract: Certain aspects relate to methods and apparatus for latency reduction for UEs in a RRC connected mode. During contention-based uplink access by groups of UEs within a subframe, an eNB may decode the received uplink transmission based, at least in part, on the assigned group of resources assigned to the UE and used for transmission. Additional orthogonalization techniques such as reduced TTI size can be used to reduce collisions among different users performing contention-based transmissions. Furthermore, when the eNB fails to successfully decode the uplink transmission, the eNB may identify the UE that sent the uplink transmission based on a detected reference signal and may transmit an uplink assignment to the identified UE.

公开(公告)号：US10904845B2

公开(公告)日：2021-01-26

申请号：US15976943

申请日：2018-05-11

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil Bhattad ,  Peter Pui Lok Ang ,  Alberto Rico Alvarino ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal

IPC: H04W56/00 ,  H04W52/02

Abstract: A method for communication includes receiving in a user equipment (UE) a configuration for a modified synchronization channel, and the UE periodically awakening and synchronizing to a communication channel using the modified synchronization channel.

公开(公告)号：US10904783B2

公开(公告)日：2021-01-26

申请号：US14995437

申请日：2016-01-14

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Jelena Damnjanovic ,  Peter Gaal ,  Aleksandar Damnjanovic ,  Hao Xu ,  Tao Luo

IPC: H04W24/10 ,  H04L1/00 ,  H04L1/18 ,  H04L1/16 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: Enhanced carrier aggregation may require development of mechanisms to enable carrier aggregation for an increased number of component carriers. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus for wireless communication are provided. The apparatus may be a user equipment. The apparatus may receive, with an uplink grant, a request for channel state information. The apparatus determines the number of bits comprising the request. The determined number of bits may be based on or associated with the number of serving cells configured for the apparatus. The apparatus reports the channel state information in response to the request based on information in the determined number of bits.