公开(公告)号：US10512075B2

公开(公告)日：2019-12-17

申请号：US15729331

申请日：2017-10-10

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Sumeeth Nagaraja ,  Xiao feng Wang ,  Kaushik Chakraborty ,  Wooseok Nam ,  Shengbo Chen

IPC: H04W72/04 ,  H04W72/14 ,  H04B7/0413 ,  H04L5/00 ,  H04B7/06 ,  H04B7/08 ,  H04B7/0408 ,  H04W88/02 ,  H04W88/08 ,  H04B7/0417

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive a downlink transmission from at least one beam of a set of beams. The set of beams may be associated with a multi-beam communication between the apparatus and a base station. The apparatus may select a beam, of the set of beams, to report beam related information associated with the at least one beam of the set of beams. The apparatus may report an indication that the beam is a selected beam.

公开(公告)号：US10477537B2

公开(公告)日：2019-11-12

申请号：US15428242

申请日：2017-02-09

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Xiao feng Wang ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal ,  Juan Montojo ,  Seyed Ali Akbar Fakoorian

IPC: H04W72/04 ,  H04L5/00 ,  H04W48/16 ,  H04W68/00 ,  H04W74/08 ,  H04W4/00 ,  H04W48/00 ,  H04W48/12 ,  H04W4/70 ,  H04W4/02

Abstract: Aspects of the present disclosure provide techniques and apparatus for multiple physical resource block (PRB) operations for narrowband (NB) systems, such as NB internet-of-things (IoT). In one aspect, a method is provided which may be performed by a wireless device such as a user equipment (UE), which may be an NB-IoT device. The method generally includes performing a cell search based on one or more signals received in an anchor RB within a set of RBs available for narrowband communications with a base station (BS); determining a location of at least one additional RB available for the narrowband communications with the BS based on an indication received in the anchor RB; and performing narrowband communications with the BS using at least one of: the anchor RB or the at least one additional resource block.

公开(公告)号：US10454659B2

公开(公告)日：2019-10-22

申请号：US15710748

申请日：2017-09-20

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Xiao feng Wang ,  Alberto Rico Alvarino ,  Hao Xu

IPC: H04L5/14 ,  H04L5/22 ,  H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04L1/00 ,  H04W74/08 ,  H04L5/26 ,  H04L25/02 ,  H04L1/08

Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive information associated with a narrowband TDD frame structure for narrowband communications. The apparatus may transmit a first symbol group of a first narrowband physical random access channel (NPRACH) preamble to a base station. In one aspect, a first length of the first symbol group may be associated with the narrowband TDD frame structure.

公开(公告)号：US10420102B2

公开(公告)日：2019-09-17

申请号：US15724164

申请日：2017-10-03

Applicant: QUALCOMM Incorporated

Inventor： Gowrisankar Somichetty ,  Kapil Bhattad ,  Alberto Rico Alvarino ,  Xiao feng Wang ,  Manikandan Chandrasekar

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/18 ,  H04L5/14 ,  H04W72/14 ,  H04W88/08 ,  H04W88/02

Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine to transmit a narrowband physical downlink channel in a subframe in a narrowband TDD frame structure of a plurality of narrowband TDD frame structures for narrowband communications. In addition, the apparatus may determine whether the subframe is a special subframe or a downlink subframe when the narrowband TDD frame structure includes one or more special subframes. Further, the apparatus may determine how to transmit a narrowband physical downlink channel based on the determination whether the subframe is a special subframe or a downlink subframe. Additionally, the apparatus may transmit the narrowband physical downlink channel.

公开(公告)号：US10122528B2

公开(公告)日：2018-11-06

申请号：US15433506

申请日：2017-02-15

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Peter Gaal ,  Hao Xu ,  Wanshi Chen ,  Xiao feng Wang

IPC: H04L7/04 ,  H04W48/16 ,  H04J11/00 ,  H04J13/10 ,  H04J13/00

Abstract: In order to address the needs of narrow band communication, eNB-based processing and/or UE-based processing is provided to achieve robust detection of cell ID and SFN timing location using NB-SSS. A base station constructs a NB-SSS signal using a root index of a Zadoff-Chu (ZC) sequence, a scrambling code, a cyclic shift or phase ramping sequence, and an interleaving sequence, wherein a combination of the ZC root index, the scrambling code index, the cyclic shift or phase ramping sequence index, and the interleaving sequence index signals information for a cell identifier (e.g., PCID) and frame timing. The ZC sequence used may be a long ZC sequence constructed to span a total number of tones allocated to an SSS sequence or may be a concatenation of multiple ZC sequences, wherein the concatenated ZC sequences span a total number of tones allocated to an SSS sequence.

公开(公告)号：US20180278467A1

公开(公告)日：2018-09-27

申请号：US15887656

申请日：2018-02-02

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Xiao feng Wang ,  Sumeeth Nagaraja

IPC: H04L12/24 ,  H04W72/04 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communication are described that support beam failure identification and recovery is systems that may use beamforming for uplink and downlink transmission beams. A first beam and a second beam may be configured, and the second beam may be used to identify a failure of the first beam. Upon detection of a beam failure, a beam recovery procedure may be initiated in which an indication of a beam failure may be transmitted using scheduling request (SR) or uplink control channel resource. A base station in some examples may transmit an indication that one of a set of beams may have failed, and a UE may provide an indication of which beam of the set of beams failed, such as based on a received reference signal associated with one of the beams.

公开(公告)号：US20180262242A1

公开(公告)日：2018-09-13

申请号：US15845585

申请日：2017-12-18

Applicant: Qualcomm Incorporated

Inventor： Kaushik Chakraborty ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Xiao feng Wang ,  Shengbo Chen

IPC: H04B7/0456 ,  H04L5/00 ,  H04W24/10 ,  H04W72/04

CPC classification number: H04B7/0456 ,  H04B7/0452 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/0665 ,  H04B7/0695 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/1469 ,  H04L5/16 ,  H04W24/10 ,  H04W72/042

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of whether to use uplink reference signals or downlink reference signals for uplink precoder determination. The UE may selectively transmit a plurality of uplink reference signals or one or more measurement reports based at least in part on the indication, wherein the one or more measurement reports are determined based at least in part on measuring a plurality of downlink reference signals. The UE may receive an indication of a precoder, of a plurality of precoders, to be used to precode an uplink communication, wherein the precoder is identified based at least in part on the plurality of uplink reference signals or the one or more measurement reports. The UE may precode the uplink communication using the precoder. Numerous other aspects are provided.

公开(公告)号：US11336407B2

公开(公告)日：2022-05-17

申请号：US16405442

申请日：2019-05-07

Applicant: QUALCOMM INCORPORATED

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Xiao feng Wang ,  Sony Akkarakaran ,  Wooseok Nam ,  Sumeeth Nagaraja ,  Kaushik Chakraborty ,  Shengbo Chen

IPC: H04W16/14 ,  H04L5/00 ,  H04W76/15 ,  H04L27/26 ,  H04W72/04

Abstract: Wireless communications systems and methods related to reusing long-term evolution (LTE) resources for new radio (NR) system operations are provided. A UE receives, from a base station, a reference signal configuration of a first network of a long-term evolution (LTE) radio access technology (RAT). The UE and the base station are associated with a second network of another RAT. The reference signal configuration indicates at least a number of antenna ports associated with a reference signal of the first network. The UE determines a location of the reference signal associated with the reference signal configuration and receives, from the base station, a data signal of the second network based at least on the location of the reference signal of the first network.

公开(公告)号：US11082105B2

公开(公告)日：2021-08-03

申请号：US15895839

申请日：2018-02-13

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Sumeeth Nagaraja ,  Heechoon Lee ,  Xiaoxia Zhang ,  Xiao feng Wang

IPC: H04W24/10 ,  H04B7/06 ,  H04L25/02 ,  H04B17/21 ,  H04L5/00 ,  H04B17/309 ,  H04W76/27 ,  H04W24/08

Abstract: In order to provide a more robust RLM procedure for 5G/NR, a base station may provide a dynamic relationship between a PDCCH and another reference signal (e.g., SS/CSI-RS) to a UE. For example, an apparatus may receive an adjustment parameter regarding a PDCCH from a base station. The adjustment parameter may comprise a relationship between the PDCCH and the at least one of the SS or the CSI-RS for deriving a radio link quality of a hypothetical PDCCH. The apparatus may receive an SS/CSI-RS that is QCL with the PDCCH and perform a radio link measurement based on the received at least one of the SS or the CSI-RS using the adjustment parameter regarding the PDCCH. Among other relationships/offsets, the adjustment parameter may indicate a TPR difference, a beamforming gain difference, a beam width difference, a beam orientation difference.

公开(公告)号：US11076400B2

公开(公告)日：2021-07-27

申请号：US16713456

申请日：2019-12-13

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Sumeeth Nagaraja ,  Xiao feng Wang ,  Kaushik Chakraborty ,  Wooseok Nam ,  Shengbo Chen

IPC: H04W72/04 ,  H04B7/0413 ,  H04B7/06 ,  H04W72/14 ,  H04B7/0408 ,  H04B7/08 ,  H04W88/02 ,  H04L5/00 ,  H04W88/08 ,  H04B7/0417

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive a downlink transmission from at least one beam of a set of beams. The set of beams may be associated with a multi-beam communication between the apparatus and a base station. The apparatus may select a beam, of the set of beams, to report beam related information associated with the at least one beam of the set of beams. The apparatus may report an indication that the beam is a selected beam.