公开(公告)号：CA3020730A1

公开(公告)日：2017-11-30

申请号：CA3020730

申请日：2017-04-17

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  SADIQ BILAL ,  LUO TAO ,  SUBRAMANIAN SUNDAR ,  LI JUNYI

IPC: H04B7/0417 ,  H04B7/0452 ,  H04B7/06 ,  H04W74/08

Abstract: A UE may receive, from a base station, a message requesting BSI. The UE may determine a number N of BSI reports to send to the base station, and each BSI report may indicate a beam index corresponding to a beam and a received power associated with the beam. The UE may send, to the base station, N BSI reports based on the message requesting BSI. The UE may receive, from the base station, a set of signals through a set of beams, and determine the received power for each signal of the set of signals received through each beam of the set of beams, each received power may be associated with a beam of the set of beams.

公开(公告)号：CA3018178A1

公开(公告)日：2017-11-02

申请号：CA3018178

申请日：2017-03-27

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  LUO TAO ,  CEZANNE JUERGEN ,  SUBRAMANIAN SUNDAR ,  LI JUNYI

IPC: H04W52/42 ,  H04W72/04

Abstract: Uplink transmission power levels may be adjusted in response to changes in a directional beam used for wireless communications. A beam change may be identified, wherein the beam change includes a transition from a first transmission configuration based on a first beam direction of a cell to a second transmission configuration based on a second beam direction of the cell. A downlink (DL) message associated with the beam change may be received, wherein the DL message comprises a transmission power indication. An uplink (UL) message may be transmitted at a power level based at least in part on the transmission power indication.

公开(公告)号：CA3017934A1

公开(公告)日：2017-11-02

申请号：CA3017934

申请日：2017-04-07

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  LUO TAO ,  CEZANNE JUERGEN ,  SADIQ BILAL ,  SUBRAMANIAN SUNDAR ,  LI JUNYI

IPC: H04L5/00

Abstract: Disclosed in this application are techniques to enabling and employing bandwidth agnostic tone mapping. Certain aspects of the present disclosure relate to methods and apparatus for mapping coded bits of a broadcast channel to tones of a symbol. Certain aspects of the present disclosure relate to methods and apparatus for mapping bits of a beamformed reference signal (BRS) signal to tones of a symbol. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：CA3017385A1

公开(公告)日：2017-10-26

申请号：CA3017385

申请日：2017-03-27

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  LUO TAO ,  SADIQ BILAL ,  CEZANNE JUERGEN ,  SUBRAMANIAN SUNDAR ,  LI JUNYI

IPC: H04B7/0417 ,  H04B7/06

Abstract: When beamforming (e.g., via a millimeter wave system (mmW)) is used for wireless communication, a base station may transmit beams that are directed to certain directions. Due to the directional nature of the beams in the mmW system, an approach to determine a beam that provides a desirable gain is studied. The apparatus may be a user equipment (UE). The apparatus receives, from a base station, a plurality of signals through a plurality of beams of the base station, each of the plurality of beams corresponding to a respective antenna port of a plurality of antenna ports of the base station, where the plurality of signals include a plurality of beam reference signals, a plurality of beam refinement reference signals, a plurality of channel state information reference signals (CSI-RSs), or a combination thereof. The apparatus performs channel estimation for each beam of the plurality of beams from the plurality of antenna ports based on the plurality of signals.

公开(公告)号：CA3017220A1

公开(公告)日：2017-10-26

申请号：CA3017220

申请日：2017-03-27

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  LUO TAO ,  SADIQ BILAL ,  CEZANNE JUERGEN ,  SUBRAMANIAN SUNDAR ,  LI JUNYI

IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/08

Abstract: When beamforming (e.g., via a millimeter wave system (mmW)) is used for wireless communication, a base station may transmit beams that are directed to certain directions. Due to the directional nature of the beams in the mmW system, an approach to determine a beam that provides a desirable gain is studied. The apparatus may be a user equipment (UE). The apparatus receives, from a base station, a plurality of signals through a plurality of beams of the base station, each of the plurality of beams corresponding to a respective antenna port of a plurality of antenna ports of the base station. The apparatus performs channel estimation for each beam of the plurality of beams from the plurality of antenna ports based on the plurality of signals. The apparatus transmits, to the base station, a feedback signal including information about one or more beams selected from the plurality of beams, the feedback signal further including one or more candidate uplink precoders.

公开(公告)号：CA3016710A1

公开(公告)日：2017-10-19

申请号：CA3016710

申请日：2017-03-31

Applicant: QUALCOMM INC

Inventor： LUO TAO ,  CEZANNE JUERGEN ,  SUBRAMANIAN SUNDAR ,  SAMPATH ASHWIN ,  SADIQ BILAL ,  LI JUNYI ,  ISLAM MUHAMMAD NAZMUL

IPC: H04B7/0417 ,  H04B7/06

Abstract: A first apparatus may communicate with a user equipment (UE) through an active beam. The first apparatus may transmit, to the UE, information indicating a periodicity at which control information is to be communicated on a control channel through a control-information beam. The first apparatus may communicate, with the UE, the control information on the control channel through the control-information beam at the periodicity. Further, the first apparatus may receive a request to change the active beam, which may indicate a beam index corresponding to a second beam, and the first apparatus may change the active beam to the second beam corresponding to the beam index indicated by the request.

公开(公告)号：CA3016617A1

公开(公告)日：2017-10-12

申请号：CA3016617

申请日：2017-03-16

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  LUO TAO ,  SUBRAMANIAN SUNDAR ,  SADIQ BILAL ,  CEZANNE JUERGEN ,  LI JUNYI

IPC: H04L5/00 ,  H04L5/14

Abstract: The present disclosure relates to wireless communication in mmW networks. The apparatus may be a base station. The apparatus may be configured to determine a first symbol index and a second symbol index associated with downlink resources allocated to a UE. The first symbol index may indicate when the downlink resources begin in a subframe, and the second symbol index may indicate when the downlink resources end in the subframe. The apparatus may be configured to transmit an indication of the first symbol index and the second symbol index to the UE.

公开(公告)号：AU2015375430A1

公开(公告)日：2017-06-08

申请号：AU2015375430

申请日：2015-12-09

Applicant: QUALCOMM INC

Inventor： RAGHAVAN VASANTHAN ,  CEZANNE JUERGEN ,  SUBRAMANIAN SUNDAR ,  SAMPATH ASHWIN ,  LI JUNYI

IPC: H04B7/06 ,  H04B7/04 ,  H04B7/08

Abstract: Methods, systems, and devices are described for wireless communication at a user equipment (UE). A wireless communications system may improve UE discovery latency by dynamically selecting and switching beam forming codebooks at the millimeter wave base station and the wireless device. Selecting an optimal beam forming codebook may allow the wireless communication system to improve link margins between the base station without compromising resources. In some examples, a wireless device may determine whether the received signals from the millimeter wave base station satisfy established signal to noise (SNR) thresholds, and select an optimal beam codebook to establish communication. Additionally or alternately, the wireless device may further signal the selected beam codebook to the millimeter wave base station and direct the millimeter wave base station to adjust its codebook based on the selection.

公开(公告)号：CA2954883A1

公开(公告)日：2016-01-21

申请号：CA2954883

申请日：2015-06-22

Applicant: QUALCOMM INC

Inventor： RAGHAVAN VASANTHAN ,  SUBRAMANIAN SUNDAR ,  SAMPATH ASHWIN ,  LI JUNYI

IPC: H04W48/16 ,  H04W16/28 ,  H04W76/02

Abstract: A method, an apparatus, and a computer program product for operating a user equipment (UE) are provided. The apparatus establishes a wireless communication link with a millimeter-wave base station (mmW-BS) based on a transmit beam from the mmW-BS, the transmit beam having a transmit beam direction, receives beamforming capability information indicaticating one of at least a digital, analog, or hybrid beamforming capability associated with the mmW-BS, and scans N transmit beams from the mmW-BS for each of M receive beam directions of the UE based on the beamforming capability information and the transmit beam associated with the wireless communication link.

公开(公告)号：IN4803CHN2014A

公开(公告)日：2015-09-18

申请号：IN4803CHN2014

申请日：2014-06-25

Applicant: QUALCOMM INC

Inventor： MAGULURI SIVA THEJA ,  SUBRAMANIAN SUNDAR ,  WU XINZHOU

IPC: H04W76/02 ,  H04W84/18

Abstract: Wireless communications devices with existing peer to peer links transmit e.g. in accordance with a recurring schedule quality of service related information corresponding to the existing links. The transmitted quality of service related information is e.g. information indicating an obtained quality of service for the existing link. In some embodiments quality of service related information is communicated in one of: a peer discovery signal a connection ID broadcast signal and a contention resolution signal. A wireless communications device seeking to establish a new peer to peer link receives quality of service related information corresponding to existing links and estimates a quality a service achievable on the new desired potential link based on the received quality of service related information. The wireless communications device decides whether or not to establish the new peer to peer link based on its quality of service estimate.