公开(公告)号：US09178581B2

公开(公告)日：2015-11-03

申请号：US13956254

申请日：2013-07-31

Applicant: QUALCOMM Incorporated

Inventor： Youhan Kim ,  Ning Zhang ,  Chin-Hung Chen

IPC: H04L27/00 ,  H04B7/04 ,  H04L1/00 ,  H04L1/06 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04B7/0456 ,  H03M13/6312 ,  H04B7/0413 ,  H04L1/0071 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0046 ,  H04L5/0064 ,  H04L27/2626 ,  H04L27/2647

Abstract: A wireless transmitter can include a plurality of bandwidth modules, each bandwidth module processing data based on a predetermined frequency band. In one embodiment, such a wireless transmitter can include encoding components for receiving transmit data and generating encoded data. A multiple-input multiple-output (MIMO) stream parser can receive the encoded data and generate a plurality of MIMO streams. A first module parser coupled to a first MIMO stream can generate a first plurality of partial MIMO streams. A first bandwidth module can include a first interleaver that interleaves bits of the first partial MIMO stream and generates first interleaved data. A second bandwidth module can include a second interleaver that interleaves bits of the second partial MIMO stream and generates second interleaved data. A first inverse fast Fourier transform (IFFT) unit can combine and process the first and second interleaved data and generate a first transmission MIMO stream.

Abstract translation: 无线发射机可以包括多个带宽模块，每个带宽模块基于预定频带处理数据。 在一个实施例中，这样的无线发射机可以包括用于接收发送数据和生成编码数据的编码组件。 多输入多输出（MIMO）流解析器可以接收编码数据并产生多个MIMO流。 耦合到第一MIMO流的第一模块解析器可以生成第一多个部分MIMO流。 第一带宽模块可以包括交织第一部分MIMO流的比特并产生第一交织数据的第一交织器。 第二带宽模块可以包括交织第二部分MIMO流的比特并产生第二交织数据的第二交织器。 第一逆快速傅里叶变换（IFFT）单元可以组合并处理第一和第二交错数据并生成第一传输MIMO流。

公开(公告)号：US12218884B2

公开(公告)日：2025-02-04

申请号：US17503215

申请日：2021-10-15

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Youhan Kim ,  Qifan Chen

IPC: H04L5/00 ,  H04L27/26

Abstract: This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to short training field (STF) designs and signaling that support distributed transmissions. A transmitting device that transmits data on a distributed resource unit (dRU) may transmit an STF sequence over a spreading bandwidth of the dRU according to an existing STF tone plan. Each STA allocated a dRU for transmission in a trigger-based (TB) physical layer convergence protocol (PLCP) protocol data unit (PPDU) maps its STF sequence to one or more spatial streams and may apply one or more global cyclic shift delays (CSDs) to the STF sequence mapped to the one or more spatial streams, respectively. As such, different global CSDs may be assigned to different STAs so that each STA transmits its STF sequence with different amounts of delay.

公开(公告)号：US12137015B2

公开(公告)日：2024-11-05

申请号：US18182288

申请日：2023-03-10

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Sameer Vermani ,  Jialing Li Chen ,  Youhan Kim

IPC: H04W84/12 ,  H04L27/26

Abstract: This disclosure provides methods, devices and systems for wireless communication, and particularly, for generating or receiving a multi-generation physical layer protocol data unit (PPDU). The multi-generation PPDU may concurrently include a first generation-specific preamble based on a first generation of a wireless communication specification (such as that defined by the Institute of Electrical and Electronics Engineers (IEEE) 802.11 family of standards) and a second generation-specific preamble based on a second generation of the wireless communication specification in a same transmission. The generation-specific preambles may be generated based on bandwidth portions of a wireless channel that each generation-specific preamble will occupy in the multi-generation PPDU. One or more of the generation-specific preambles may be modified based on an aggregate bandwidth of the multi-generation PPDU. This disclosure includes several options for modifying one or more generation-specific preambles or data fields to accommodate their use in a multi-generation PPDU.

公开(公告)号：US12101148B2

公开(公告)日：2024-09-24

申请号：US17738892

申请日：2022-05-06

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Alfred Asterjadhi ,  Youhan Kim

IPC: H04B7/06 ,  H04W84/12

CPC classification number: H04B7/0617 ,  H04B7/0619 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for increasing carrier frequencies for wireless communications in wireless local area networks (WLANs). Some implementations more specifically relate to BSS discovery and association techniques that support wireless communications on carrier frequencies above 7 GHz. In some aspects, an access point (AP) may communicate using beamforming on a wireless communication link operating at a carrier frequency above 7 GHz (the “directional link”) while offloading the BSS discovery and association procedures needed to support such communications onto a wireless communication link operating at a carrier frequency below 7 GHz (the “anchor link”). In some implementations, the AP may perform a beamforming training operation with a STA over the directional link upon associating with the STA over the anchor link. In such implementations, the AP may communicate with the STA over the directional link using a beam derived from the beamforming training operation.

公开(公告)号：US12052192B2

公开(公告)日：2024-07-30

申请号：US17402475

申请日：2021-08-13

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Youhan Kim ,  Qifan Chen

IPC: H04L5/00 ,  H04L27/26 ,  H04W52/18

CPC classification number: H04L5/0048 ,  H04W52/18

Abstract: This disclosure provides methods, devices and systems for distributed transmission of short training fields in a power spectral density limited frequency band. In one aspect, a device receives a distributed resource unit (dRU) assignment for transmission of a dRU portion of a physical layer protocol data unit (PPDU); determines a spatial stream global cyclic shift delay (CSD) index for an short training field (STF) of the dRU portion of the PPDU; and transmits, based on the spatial stream global CSD index, the EHT of the dRU portion of the PPDU across a dRU spreading bandwidth associated with the dRU assignment using a tone plan and sequence corresponding to a regular resource unit (rRU) transmission mode.

公开(公告)号：US11984976B2

公开(公告)日：2024-05-14

申请号：US17513849

申请日：2021-10-28

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Bin Tian ,  Youhan Kim ,  Jialing Li Chen

IPC: H04W4/00 ,  H04L1/00 ,  H04W80/02

CPC classification number: H04L1/0036 ,  H04L1/0013 ,  H04W80/02

Abstract: This disclosure provides methods, devices and systems for interpreting reserved bits and values associated with different releases of a wireless communication protocol. In some implementations, a wireless communication device may determine whether to terminate or continue reception of a physical layer protocol convergence protocol (PLCP) protocol data unit (PPDU) if it detects a reserved bit in the physical layer preamble set to an unsupported value (such as a value different than what is defined by a version or release of the wireless communication protocol supported by the wireless communication device). In some other implementations, a wireless communication device may determine whether to terminate or continue reception of a PPDU if it detects a field in the physical layer preamble set to a reserved value (such as defined by a version or release of the wireless communication protocol supported by the wireless communication device).

公开(公告)号：US11870578B2

公开(公告)日：2024-01-09

申请号：US18052188

申请日：2022-11-02

Applicant: QUALCOMM Incorporated

Inventor： Yanjun Sun ,  Bin Tian ,  Alfred Asterjadhi ,  George Cherian ,  Youhan Kim

IPC: H04L1/00 ,  H04W76/30 ,  H04L1/1607

CPC classification number: H04L1/0069 ,  H04L1/1614 ,  H04W76/30

Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication that can be used for channel puncturing. A wireless station (STA) may receive an indication of a first puncturing pattern to be used for transmitting or receiving data over a wireless channel, where the first puncturing pattern is defined by a first wireless communication protocol release and the STA is configured to operate according to a second wireless communication protocol release. The STA may select, from a set of puncturing patterns defined by the second wireless communication protocol release, a second puncturing pattern that includes one or more non-punctured subchannels that are subsets of one or more corresponding non-punctured subchannels of the first puncturing pattern. The STA may use the second puncturing pattern to transmit or receive one or more packets over the wireless channel.

公开(公告)号：US11818698B2

公开(公告)日：2023-11-14

申请号：US17322097

申请日：2021-05-17

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Youhan Kim

IPC: H04W72/0453 ,  H04L5/00 ,  H04W52/34

CPC classification number: H04W72/0453 ,  H04L5/0044 ,  H04W52/346

Abstract: This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to physical layer (PHY) convergence protocol (PLCP) protocol data unit (PPDU) designs that support distributed transmission. In some implementations, a PPDU may be generated based on one or more legacy tone plans. In such implementations, a portion of the PPDU may be modulated on a number (M) of tones representing a logical RU, and the M tones may be further mapped to M noncontiguous subcarrier indices in accordance with a distributed tone plan. In some other implementations, a PPDU may be generated based on a distributed tone plan. In such implementations, a portion of the PPDU may be modulated on a number (M) of tones coinciding with M noncontiguous subcarrier indices in accordance with the distributed tone plan.

公开(公告)号：US11743837B2

公开(公告)日：2023-08-29

申请号：US17118506

申请日：2020-12-10

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Rahul Tandra ,  Bin Tian ,  Youhan Kim ,  Simone Merlin ,  George Cherian

IPC: H04W52/24 ,  H04W52/14 ,  H04L27/26 ,  H04B7/0452 ,  H04L1/00 ,  H04W52/22 ,  H04L5/00 ,  H04W52/36 ,  H04W52/26

CPC classification number: H04W52/242 ,  H04B7/0452 ,  H04L1/0009 ,  H04L5/0053 ,  H04L27/2601 ,  H04W52/143 ,  H04W52/146 ,  H04W52/228 ,  H04W52/262 ,  H04W52/265 ,  H04W52/362 ,  H04W52/367

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a target receiver power level for uplink transmissions received at the apparatus, to determine uplink power control information based on the determined target receiver power level for UL MU-MIMO transmission or UL OFDMA transmission, and to transmit a frame that includes the determined uplink power control information to a station scheduled by the apparatus for uplink transmission.

公开(公告)号：US20230124579A1

公开(公告)日：2023-04-20

申请号：US17503215

申请日：2021-10-15

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin Tian ,  Youhan Kim ,  Qifan Chen

IPC: H04L5/00 ,  H04L27/26

Abstract: This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to short training field (STF) designs and signaling that support distributed transmissions. A transmitting device that transmits data on a distributed resource unit (dRU) may transmit an STF sequence over a spreading bandwidth of the dRU according to an existing STF tone plan. Each STA allocated a dRU for transmission in a trigger-based (TB) physical layer convergence protocol (PLCP) protocol data unit (PPDU) maps its STF sequence to one or more spatial streams and may apply one or more global cyclic shift delays (CSDs) to the STF sequence mapped to the one or more spatial streams, respectively. As such, different global CSDs may be assigned to different STAs so that each STA transmits its STF sequence with different amounts of delay.