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公开(公告)号：US20240396678A1
公开(公告)日：2024-11-28
申请号：US18321624
申请日：2023-05-22
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Jialing Li CHEN , Bin TIAN , Vamsi Krishna AMALLADINNE , Sameer VERMANI
Abstract: Methods, systems, and devices for wireless communications are described. A first device may transmit control signaling to a second device. The control signaling may indicate a set of different modulation and coding schemes (MCSs) to be applied to at least one of a set of spatial streams or a set of resource units (RUS), where the control signaling may indicate that a respective MCS to be applied to a respective spatial stream or to a respective RU. The first device may transmit, one or more first bits of a first service data unit to the second device via a first spatial stream of or via a first RU using a first MCS and transmit one or more second bits, of the first service data unit or of a second service data unit via a second spatial stream or via a second RU using a second MCS.
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公开(公告)号：US20240334347A1
公开(公告)日：2024-10-03
申请号：US18411487
申请日：2024-01-12
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Youhan KIM , Didier Johannes Richard VAN NEE , Alecsander Petru EITAN , Sameer VERMANI , Vincent Knowles JONES
CPC classification number: H04W52/325 , H04W52/28
Abstract: This disclosure provides methods, components, devices and systems for extended long range wireless packet design. Some aspects more specifically relate to increasing a data rate, a coverage range, or both for extended long range (ELR) wireless communications systems by updating an ELR wireless packet design. A wireless communications device, such as a wireless station (STA), may transmit an ELR wireless packet to another wireless communications device, such as a wireless access point (AP), with updated preamble fields, boosted transmit power for one or more preamble fields, and/or additional repetitions for one or more preamble fields. Additionally, or alternatively, the wireless communications device may transmit an ELR wireless packet using a narrow bandwidth to increase coverage range for an ELR wireless communications system.
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公开(公告)号：US20240163038A1
公开(公告)日：2024-05-16
申请号：US18513461
申请日：2023-11-17
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Youhan KIM , Qifan CHEN
IPC: H04L5/00
CPC classification number: H04L5/0044 , H04L5/0048
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 pilot tone designs that support distributed transmission. A transmitting device may modulate a physical layer convergence protocol (PLCP) protocol data unit (PPDU) on a number (M) of tones representing a logical RU associated with the legacy tone plan and may further map the M tones to M noncontiguous subcarrier indices associated with a wireless channel. The transmitting device may transmit the PPDU, over the wireless channel, with a number (N) of pilot tones each having a respective location relative to the M tones as mapped to the M noncontiguous subcarrier indices. In some implementations, the relative locations of the N pilot tones may be different than relative locations of a number (K) of pilot tones associated with the logical RU.
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公开(公告)号：US20240049203A1
公开(公告)日：2024-02-08
申请号：US18486055
申请日：2023-10-12
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.
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公开(公告)号：US20240040610A1
公开(公告)日：2024-02-01
申请号：US18480480
申请日：2023-10-03
Applicant: QUALCOMM Incorporated
Inventor： Jialing Li CHEN , Sameer VERMANI , Lin YANG , Bin TIAN , Vincent Knowles JONES , Youhan KIM
IPC: H04W74/00 , H04L5/00 , H04W72/0453 , H04W72/0446 , H04L69/18 , H04L69/22 , H04W72/21 , H04W72/23
CPC classification number: H04W74/004 , H04L5/0053 , H04W72/0453 , H04W72/0446 , H04L5/0094 , H04L69/18 , H04L69/22 , H04W72/21 , H04W72/23 , H04W84/12
Abstract: This disclosure provides methods, devices and systems for wireless communication, and particularly, methods, devices and systems for including signaling regarding enhanced features of new wireless communication protocols. The signaling may be included in various portions of a physical layer preamble of a wireless transmission. In some implementations, the physical layer preamble may be used to indicate puncturing of subbands or content channels that may carry further signaling in accordance with preamble signaling designs of this disclosure. The physical layer preamble signaling be parallelized for different subchannels of a wireless channel that consists of multiple subchannels. Some implementations of the physical layer preambles may be used to multiplex different types of wireless local area network communications into different subsets of the plurality of subchannels of the wireless channel.
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Patent Agency Ranking
公开(公告)号：US20230412302A1
公开(公告)日：2023-12-21
申请号：US18459868
申请日：2023-09-01
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Dung Ngoc DOAN , Sameer VERMANI , Stephen Jay SHELLHAMMER , Jialing Li CHEN
CPC classification number: H04L1/0013 , H04W24/08 , H04L1/0003 , H04W84/12
Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for link adaptation in a wireless local area network (WLAN). A link adaptation test packet from a first WLAN device to a second WLAN may include a plurality of link adaptation test portions that are generated using a corresponding plurality of transmission rate options. For example, the plurality of link adaptation test portions may be modulated using different modulation and coding scheme (MCS) options. Thus, a single test packet may be used to evaluate different transmission rate options. The second WLAN device may provide feedback information regarding the link adaptation test portions. The feedback information may be used to determine a transmission rate for a subsequent transmission from the first WLAN device to the second WLAN device based on wireless channel conditions.
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公开(公告)号：US20230379725A1
公开(公告)日：2023-11-23
申请号：US17746623
申请日：2022-05-17
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Alecsander Petru EITAN , Youhan KIM
IPC: H04W16/28 , H04B7/0417 , H04B7/06
CPC classification number: H04W16/28 , H04B7/0417 , H04B7/0617 , H04B7/0695
Abstract: This disclosure provides methods, devices and systems for increasing carrier frequencies for wireless communications in wireless local area networks. Some implementations more specifically relate to beamforming training operations that support wireless communications on carrier frequencies above 7 GHz. In some aspects, a beamforming initiator may initiate a beamforming training operation by transmitting a number (N) of beamforming training (BFT) packets in N TX beam directions, respectively, on a carrier frequency above 7 GHz. The beamforming responder receives one or more of the BFT packets and provides feedback to the beamforming initiator indicating the TX beam direction associated with the BFT packet having the highest received signal power. In some aspects, the beamforming responder may train its RX antennas for RX beamforming concurrently while the beamforming initiator trains its TX antennas. In some other aspects, the beamforming responder may train its RX antennas after the beamforming initiator trains its TX antennas.
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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
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.
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公开(公告)号：US20230048884A1
公开(公告)日：2023-02-16
申请号：US17390828
申请日：2021-07-30
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Youhan KIM , Qifan CHEN
IPC: H04L5/00
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 pilot tone designs that support distributed transmission. A transmitting device may modulate a physical layer convergence protocol (PLCP) protocol data unit (PPDU) on a number (M) of tones representing a logical RU associated with the legacy tone plan and may further map the M tones to M noncontiguous subcarrier indices associated with a wireless channel. The transmitting device may transmit the PPDU, over the wireless channel, with a number (N) of pilot tones each having a respective location relative to the M tones as mapped to the M noncontiguous subcarrier indices. In some implementations, the relative locations of the N pilot tones may be different than relative locations of a number (K) of pilot tones associated with the logical RU.
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公开(公告)号：US20210160843A1
公开(公告)日：2021-05-27
申请号：US17099343
申请日：2020-11-16
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Dung Ngoc DOAN
Abstract: This disclosure provides methods, devices and systems for amplitude shaping encoding, and specifically, for indicating boundaries in bitstreams encoded using amplitude shaping encoding. In some aspects, a transmitting device may insert, into an bitstream to indicate a boundary, a sequence of amplitude bits not associated with any patterns of bit values in a lookup table used for the encoding. In some other aspects, a transmitting device may monitor a length of the amplitude bits in a bitstream during the encoding and stop the encoding on information bits at an end of a current data unit responsive to the length reaching a threshold. In some other aspects, a transmitting device may monitor the length of the information bits and, for each data unit, determine whether a boundary is or would be reached. Responsive to determining that a boundary is or would be reached, the transmitting device may not include, before the boundary, any amplitude bits generated based on the information bits in the data unit, and instead add padding bits after a last amplitude bit before the boundary.
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