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公开(公告)号：US20240187131A1
公开(公告)日：2024-06-06
申请号：US18062559
申请日：2022-12-06
Applicant: QUALCOMM Incorporated
Inventor： Kanke Wu , Jialing Li Chen , Bin Tian
CPC classification number: H04L1/0042 , H04L1/203
Abstract: Methods, systems, and devices for wireless communication are described. An encoding device may obtain a first set of coded bits by encoding multiple sets of information bits in accordance with a parallel encoding scheme. The encoding device may obtain a second set of coded bits by using some or all of the first set of coded bits to encode a second set of information bits in accordance with a concatenated encoding scheme. The encoding device may map at least the second set of coded bits to different layers of a constellation based on a first priority associated with the first set of coded bits and a second priority associated with the second set of coded bits. Accordingly, the encoding device may transmit a signal associated with the second set of coded bits based on modulating the signal in accordance with the mapping.
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公开(公告)号：US12052081B2
公开(公告)日：2024-07-30
申请号：US17820006
申请日：2022-08-16
Applicant: QUALCOMM Incorporated
Inventor： Kanke Wu , Bin Tian , Tevfik Yucek , Lin Yang
CPC classification number: H04B7/0691 , H04L5/0098
Abstract: This disclosure provides methods, devices and systems for improving wireless communications in power spectral density (PSD)-limited frequency bands. A wireless communication device, having a number (NTX) of transmit antennas, parses a physical layer (PHY) protocol data unit (PPDU) into a number (NSS) of spatial streams and modulates the NSS spatial streams on a number (M) of subcarriers. In some implementations, the wireless communication device may transmit the PPDU using a number (N) of the transmit antennas, where NSS≤N
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公开(公告)号：US20240223308A1
公开(公告)日：2024-07-04
申请号：US18145844
申请日：2022-12-22
Applicant: QUALCOMM Incorporated
CPC classification number: H04L1/0063 , H03M13/1102 , H04L1/0057
Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device, such as a wireless station (STA) or a wireless access point (AP), may perform a low-density parity check (LDPC) coding operation on input bits of a set of code blocks. Performing the LDPC coding operation on the input bits may produce a set of codewords including one or more codewords having a first codeword length and one or more codewords having a second, shorter codeword length. The first wireless device may arrange the set of codewords into a set of symbols such that a last symbol in time of the set of symbols includes the one or more codewords each having the second codeword length and no codewords having the first codeword length. The first wireless device may transmit, to a second wireless device, the plurality of symbols.
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公开(公告)号：US20220385437A1
公开(公告)日：2022-12-01
申请号：US17330393
申请日：2021-05-25
Applicant: QUALCOMM Incorporated
Inventor： Stephen Jay Shellhammer , Bin Tian , Jialing Li Chen , Sameer Vermani , Kanke Wu , Youhan Kim
Abstract: This disclosure provides methods, devices and systems for wireless communications over a 320 MHz bandwidth. Some implementations more specifically relate to signaling techniques for indicating the bandwidth of a physical layer convergence protocol (PLCP) protocol data unit (PPDU) transmitted in a secondary 160 MHz channel of the 320 MHz bandwidth. In some implementations, an access point (AP) may transmit an aggregated PPDU (A-PPDU) that includes a first sub-PPDU transmitted within a primary 160 MHz channel and a second sub-PPDU transmitted within a secondary 160 MHz channel. In such implementations, the first sub-PPDU may carry bandwidth information indicating the bandwidth of the first sub-PPDU within the primary 160 MHz channel and the second sub-PPDU may carry bandwidth information indicating the 320 MHz bandwidth.
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公开(公告)号：US12212448B2
公开(公告)日：2025-01-28
申请号：US18173612
申请日：2023-02-23
Applicant: QUALCOMM Incorporated
Inventor： Jialing Li Chen , Kanke Wu , Bin Tian
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 tone mapping techniques and packet designs that support duplicate (or “DUP mode”) transmissions to multiple users. In some implementations, an access point (AP) may transmit a PPDU that includes first user data and second user data, where at least the first user data is transmitted in a DUP mode. As such, the first user data may be mapped to a number (N) of tones spanning a first RU in accordance with a dual carrier modulation (DCM) scheme, and a duplicate copy of the first user data may be mapped to N tones spanning a second RU in accordance with the DCM scheme. In some implementations, the second user data also may be transmitted in a DUP mode.
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Patent Agency Ranking
公开(公告)号：US11616681B2
公开(公告)日：2023-03-28
申请号：US17330238
申请日：2021-05-25
Applicant: QUALCOMM Incorporated
Inventor： Jialing Li Chen , Kanke Wu , Bin Tian
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 tone mapping techniques and packet designs that support duplicate (or “DUP mode”) transmissions to multiple users. In some implementations, an access point (AP) may transmit a PPDU that includes first user data and second user data, where at least the first user data is transmitted in a DUP mode. As such, the first user data may be mapped to a number (N) of tones spanning a first RU in accordance with a dual carrier modulation (DCM) scheme, and a duplicate copy of the first user data may be mapped to N tones spanning a second RU in accordance with the DCM scheme. In some implementations, the second user data also may be transmitted in a DUP mode.
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公开(公告)号：US11509416B1
公开(公告)日：2022-11-22
申请号：US17340578
申请日：2021-06-07
Applicant: QUALCOMM Incorporated
Inventor： Jialing Li Chen , Kanke Wu , Bin Tian , Youhan Kim
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 tone mapping techniques and physical layer convergence protocol (PLCP) protocol data unit (PPDU) designs that support duplicate (or “DUP mode”) transmissions with channel puncturing. In some implementations, a wireless communication device may transmit a PPDU carrying user data over a wireless channel excluding one or more punctured subchannels, where the user data is transmitted in a DUP mode. As such, the user data may be mapped to a number (N) of tones spanning a first portion of the wireless channel and a duplicate copy of the user data may be mapped to N tones spanning a second portion of the wireless channel.
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公开(公告)号：US12212413B2
公开(公告)日：2025-01-28
申请号：US18145844
申请日：2022-12-22
Applicant: QUALCOMM Incorporated
Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device, such as a wireless station (STA) or a wireless access point (AP), performs a low-density parity check (LDPC) coding operation on input bits of a set of code blocks. Performing the LDPC coding operation on the input bits produces a set of codewords including one or more codewords having a first codeword length and one or more codewords having a second, shorter codeword length. The first wireless device arranges the set of codewords into a set of symbols such that a last symbol in time of the set of symbols includes the one or more codewords each having the second codeword length and no codewords having the first codeword length. The first wireless device, transmits, to a second wireless device, the plurality of symbols.
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公开(公告)号：US12191884B2
公开(公告)日：2025-01-07
申请号：US18189865
申请日：2023-03-24
Applicant: QUALCOMM Incorporated
Inventor： Thomas Joseph Richardson , Kanke Wu , Bin Tian , Didier Johannes Richard Van Nee
Abstract: This disclosure provides methods, components, devices and systems for low-density parity check (LDPC) coding. Some aspects more specifically relate to extending LDPC codewords to produce longer codewords. In some examples, a first wireless device may generate a baseline LDPC code by performing a first lifting on a base matrix, which may produce an LDPC code used for a current Wi-Fi implementation. The first wireless device may then perform a second lifting or a re-lifting (such as a cyclic lifting, a product lifting, a swapping lifting, or a combination thereof) to generate an extended lifted code. This extended lifted code may be an extension of the first LDPC code such that the first LDPC code may be preserved as part of the extended code. Then first wireless device may then transmit the extended LDPC code as an extended or lifted codeword.
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公开(公告)号：US20240322840A1
公开(公告)日：2024-09-26
申请号：US18189865
申请日：2023-03-24
Applicant: QUALCOMM Incorporated
Inventor： Thomas Joseph Richardson , Kanke Wu , Bin Tian , Didier Johannes Richard Van Nee
CPC classification number: H03M13/1174 , H03M13/116 , H03M13/616 , H04L1/0057
Abstract: This disclosure provides methods, components, devices and systems for low-density parity check (LDPC) coding. Some aspects more specifically relate to extending LDPC codewords to produce longer codewords. In some examples, a first wireless device may generate a baseline LDPC code by performing a first lifting on a base matrix, which may produce an LDPC code used for a current Wi-Fi implementation. The first wireless device may then perform a second lifting or a re-lifting (such as a cyclic lifting, a product lifting, a swapping lifting, or a combination thereof) to generate an extended lifted code. This extended lifted code may be an extension of the first LDPC code such that the first LDPC code may be preserved as part of the extended code. Then first wireless device may then transmit the extended LDPC code as an extended or lifted codeword.
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