公开(公告)号：US20240298276A1

公开(公告)日：2024-09-05

申请号：US18573326

申请日：2022-07-18

Applicant: QUALCOMM Incorporated

Inventor： Kapil RAI ,  Suresh CHANDRASEKARAN ,  Michael Richard GREEN ,  Tevfik YUCEK

IPC: H04W52/42 ,  H04B7/10

CPC classification number: H04W52/42 ,  H04B7/10

Abstract: This disclosure provides methods, devices, and systems for selecting antenna power levels based on polarization diversity. For example, a wireless communication device can determine first and second transmission power levels for a first set of one or more antennas and a second set of one or more antennas, respectively, based on a polarization diversity setting for a wireless communication device that is based on a first orientation of the first set of antenna(s) being orthogonal to a second orientation of the second set of antenna(s). The wireless communication device can transmit, to a target device, first signals at the first transmission power levels using the first set of antenna(s) and second signals at the second transmission power levels using the second set of antenna(s). The first signals are cross-polarized from the second signals based on the first orientation being orthogonal to the second orientation.

公开(公告)号：US20240237067A9

公开(公告)日：2024-07-11

申请号：US18548292

申请日：2022-05-09

Applicant: QUALCOMM Incorporated

Inventor： Suresh CHANDRASEKARAN ,  Rudreshwar NATARAJAN ,  Kapil RAI ,  Syam Krishna BABBELLAPATI

IPC: H04W74/0816 ,  H04B17/318 ,  H04W74/08

CPC classification number: H04W74/0816 ,  H04B17/328 ,  H04W74/0866

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication transmitter may monitor a clear channel assessment (CCA) for a primary bandwidth associated with the transmitter. The wireless communication transmitter may determine whether an interferer is located within the primary bandwidth based at least in part on tracking packet drops, within the primary bandwidth, that are based at least in part on the CCA. The wireless communication transmitter may monitor one or more additional CCAs for one or more secondary bandwidths associated with the transmitter. The wireless communication transmitter may determine whether an interferer is located within at least one bandwidth, of the one or more secondary bandwidths, based at least in part on tracking packet transmissions, within the one or more secondary bandwidths, that are based at least in part on the one or more additional CCAs. Numerous other aspects are described.

公开(公告)号：US20240137985A1

公开(公告)日：2024-04-25

申请号：US18548292

申请日：2022-05-08

Applicant: QUALCOMM Incorporated

Inventor： Suresh CHANDRASEKARAN ,  Rudreshwar NATARAJAN ,  Kapil RAI ,  Syam Krishna BABBELLAPATI

IPC: H04W74/0816 ,  H04B17/318 ,  H04W74/08

CPC classification number: H04W74/0816 ,  H04B17/328 ,  H04W74/0866

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication transmitter may monitor a clear channel assessment (CCA) for a primary bandwidth associated with the transmitter. The wireless communication transmitter may determine whether an interferer is located within the primary bandwidth based at least in part on tracking packet drops, within the primary bandwidth, that are based at least in part on the CCA. The wireless communication transmitter may monitor one or more additional CCAs for one or more secondary bandwidths associated with the transmitter. The wireless communication transmitter may determine whether an interferer is located within at least one bandwidth, of the one or more secondary bandwidths, based at least in part on tracking packet transmissions, within the one or more secondary bandwidths, that are based at least in part on the one or more additional CCAs. Numerous other aspects are described.

公开(公告)号：US20240306094A1

公开(公告)日：2024-09-12

申请号：US18179935

申请日：2023-03-07

Applicant: QUALCOMM Incorporated

Inventor： Akansh JAIN ,  Vinod BELUR RAMACHANDRA ,  Sarath Kumar MAHENDRADA ,  Arul Durai Murugan PALANIVELU ,  Suresh CHANDRASEKARAN ,  Sriram PARTHASARATHY

IPC: H04W52/18

CPC classification number: H04W52/18

Abstract: This disclosure provides methods and devices for realizing sensitivity gains for high-efficiency (HE) extended range (ER) dual carrier modulation (DCM) modes. A wireless communication device can determine one or more preamble symbols of a packet based on a mode of transmission of the packet, the one or more preamble symbols of the packet being associated with a receiver sensitivity limitation. The wireless communication device can apply a power boost of a to the one or more preamble symbols by a power boost value, the power boost value being based on the mode of transmission of the packet. The wireless communication device can determine whether the one or more preamble symbols with the applied power boost satisfy a spectral mask. The wireless communication device can transmit the packet when the one or more preamble symbols with the applied power boost satisfy the spectral mask.

公开(公告)号：US20200274592A1

公开(公告)日：2020-08-27

申请号：US16782709

申请日：2020-02-05

Applicant: QUALCOMM Incorporated

Inventor： Yashwanth MANDULA ,  Gopala Krishna Murthy VEMULA ,  Suresh CHANDRASEKARAN ,  Ashutosh Deepak GORE ,  Swaroop VENKATESH ,  Louay JALLOUL ,  Ahmad Abdulrahman MOHAMMED ,  Yen-Feng LEE ,  Pedram PAYSARVI HOSEINI ,  Chi-Lin SU ,  Youhan KIM

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/0456 ,  H04L25/02 ,  H04W80/04 ,  H04L25/03

Abstract: This disclosure provides methods, devices and systems for obtaining and providing channel feedback. In some implementations, a beamformee provides channel feedback to a beamformer that enables the beamformer to construct and independently precode two or more different sets of spatial streams for transmission to the beamformee. The independent precoding of the different sets of spatial streams ensures that the decodings of the different sets of spatial streams may be decoupled from one another at the beamformee. To provide the channel feedback, the beamformee partitions a channel estimate into two or more sub-estimates prior to performing a channel decomposition. In some implementations, the beamformee determines null-space-based projections of the sub-estimates before performing the channel decomposition. The determination of the null-space-based projections enables the beamformee to perform independent decompositions of the multiple channel sub-estimates to determine multiple respective feedback matrices, which are then assembled to provide the channel feedback to the beamformer. The channel feedback is then reconstructed and disassembled by the beamformer to perform the independent precoding of the different sets of spatial streams.