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公开(公告)号：US20240072932A1
公开(公告)日：2024-02-29
申请号：US17821695
申请日：2022-08-23
Applicant: QUALCOMM Incorporated
CPC classification number: H04L1/0061 , H04L27/36
Abstract: This disclosure provides methods, devices, and systems for forward error correction encoding and modulation with reliability differentiation. In some examples, a transmitting wireless communication device may use a concatenated encoding technique to generate a set of encoded bits that conveys both information bits of a first priority and information bits of a second priority lower than the first priority. In other examples, the transmitting device may use a parallel encoding technique to generate a first set of encoded bits that conveys information bits of the first priority and a second set of encoded bits that conveys information bits of the second priority. According to aspects of the disclosure, the transmitting device can map encoded bits corresponding to information bits of the first priority to relatively higher reliability bit positions of a modulation constellation.
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公开(公告)号：US20240032079A1
公开(公告)日：2024-01-25
申请号：US18357362
申请日：2023-07-24
Applicant: QUALCOMM Incorporated
Inventor： Alfred ASTERJADHI , George CHERIAN , Abhishek Pramod PATIL , Bin TIAN
Abstract: This disclosure provides methods, devices, and techniques to indicate operations by extremely high throughput (EHT) devices on an operating bandwidth, including devices in a basic service set (BSS) supporting the use of a 320 MHz channel. In some aspects, the supported functionality may include extensions to flexibility and support rules, structures, and signaling using legacy fields, frames, and features. In addition, the supported functionality may include channel sensing and reporting, such as per-channel network allocation vectors (NAVs) for the sub-channels of the operating bandwidth. A device may identify an operating mode for an operating bandwidth and determine a value for a bandwidth query report (BQR) or a target wake time (TWT) element. The device may check multiple NAVs for sub-channels of the operating bandwidth. The operating bandwidth may span concurrent operations on traditional Wi-Fi frequency bands including the 2.4 and 5 GHz bands as well as the 6 GHz band.
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公开(公告)号：US20240031209A1
公开(公告)日：2024-01-25
申请号：US18480666
申请日：2023-10-04
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Youhan KIM , Jialing Li CHEN
IPC: H04L27/26
CPC classification number: H04L27/26025 , H04L27/2607 , H04L27/2628 , 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 packet designs and numerologies that support wireless communications on carrier frequencies above 7 GHz. In some aspects, a wireless communication device may up-clock a physical layer (PHY) convergence protocol (PLCP) protocol data unit (PPDU) for transmission on carrier frequencies above 7 GHz, where the PPDU conforms to an existing PPDU format associated with carrier frequencies below 7 GHz. As used herein, the term “up-clocking” refers to increasing the frequency of a clock signal used to convert the PPDU between the frequency domain and the time domain. In some aspects, the up-clocking may result in a subcarrier spacing (SCS) greater than or equal to 1.2 MHz, where the SCS represents a spacing between the subcarriers on which a PHY preamble of the PPDU is modulated.
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公开(公告)号：US20230328783A1
公开(公告)日：2023-10-12
申请号：US17808721
申请日：2022-06-24
Applicant: QUALCOMM Incorporated
Inventor： Bin TIAN , Pooria PAKROOH , Le Nguyen LUONG , Koorosh AKHAVAN , Youhan KIM , Maarten Menzo WENTINK , Tevfik YUCEK , Olaf Josef HIRSCH , Didier Johannes Richard VAN NEE , Vincent Knowles JONES
CPC classification number: H04W74/0816 , H04W74/0866 , H04W72/1263 , H04W56/001 , H04W4/80
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless device may perform a listen-before-talk (LBT) procedure for a narrowband communication that provides time and frequency synchronization and/or scheduling information for an ultra-wideband (UWB) communication. The wireless device may transmit the narrowband communication in response to the LBT procedure being successful. The wireless device may transmit the UWB communication based at least in part on the time and frequency synchronization and/or scheduling information. Numerous other aspects are described.
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公开(公告)号：US20220377727A1
公开(公告)日：2022-11-24
申请号：US17816370
申请日：2022-07-29
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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Patent Agency Ranking
公开(公告)号：US20210288769A1
公开(公告)日：2021-09-16
申请号：US17196557
申请日：2021-03-09
Applicant: QUALCOMM Incorporated
Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication. An example apparatus selects a first resource unit (RU) of a plurality of RUs for transmitting a physical (PHY) layer convergence protocol (PLCP) protocol data unit (PPDU) over a wireless medium. The first RU may include a set of contiguous tones occupying a first frequency bandwidth. The plurality of RUs may collectively span a second frequency bandwidth greater than the first frequency bandwidth. The apparatus maps the set of contiguous tones of the first RU to a set of non-contiguous tones distributed across the second frequency bandwidth using a tone mapping vector and a tone mapping offset associated with the first RU. The apparatus transmits the PPDU over the set of non-contiguous tones distributed across the second frequency bandwidth.
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公开(公告)号：US20210288768A1
公开(公告)日：2021-09-16
申请号：US17196396
申请日：2021-03-09
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Youhan KIM , Vincent Knowles JONES, IV , Tevfik YUCEK
Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication. An example apparatus selects a resource unit (RU) for a physical (PHY) layer convergence protocol (PLCP) protocol data unit (PPDU). The selected RU includes a set of contiguous tones spanning a bandwidth. The apparatus maps the set of contiguous tones to a set of non-contiguous tones distributed across the frequency spectrum, and transmits the PPDU over the set of non-contiguous tones. Another example apparatus selects an RU of a group of RUs that collectively span a frequency spectrum, and formats a PPDU based on a first frequency bandwidth wider than the selected RU's bandwidth. The apparatus parses the contiguous tones of the selected RU to a set of non-contiguous tones spanning a unique segment of a second frequency bandwidth wider than the first frequency bandwidth, and schedules a transmission of the PPDU over the set of non-contiguous tones.
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公开(公告)号：US20210266204A1
公开(公告)日：2021-08-26
申请号：US17176517
申请日：2021-02-16
Applicant: QUALCOMM Incorporated
Inventor： Jialing Li CHEN , Bin TIAN , Lin YANG
IPC: H04L25/03
Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication that can be used to reduce the peak-to-average power ratio (PAPR) of data transmissions by increasing the degree of randomness with which data is scrambled for transmission over a wireless medium. In some implementations, a transmitting device may determine a set of scrambling initialization bits, and may generate a scrambling sequence based on the set of scrambling initialization bits and an 11th-order polynomial. The transmitting device may provide an indication of the set of scrambling initialization bits in a physical layer convergence protocol (PLCP) protocol data unit (PPDU). The transmitting device may scramble one or more portions of the PPDU based on the scrambling sequence. The transmitting device may transmit the PPDU over a wireless medium. In some instances, the set of scrambling initialization bits consists of 11 bits, and may be included in a Service field of the PPDU.
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公开(公告)号：US20210243058A1
公开(公告)日：2021-08-05
申请号：US17163771
申请日：2021-02-01
Applicant: QUALCOMM Incorporated
Inventor： Dung Ngoc DOAN , Lin YANG , Bin TIAN
Abstract: This disclosure provides methods, devices and systems for encoding data for wireless communication to achieve probabilistic amplitude shaping. In some implementations, a transmitting device may achieve a fixed information block length (N), at least in part, by iteratively encoding the information bits until the number of amplitude-shaped bits combined with the number of unshaped bits is greater than or equal to a maximum payload length. For example, the maximum payload length may be equal to N. If the resulting number of amplitude-shaped bits plus the number of unshaped bits is less than N, the transmitting device may add one or more padding bits to the information block to achieve the fixed information block length.
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公开(公告)号：US20210099962A1
公开(公告)日：2021-04-01
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
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.
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