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公开(公告)号：US20240250788A1
公开(公告)日：2024-07-25
申请号：US18626144
申请日：2024-04-03
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Youhan KIM , Qifan CHEN
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.
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公开(公告)号：US20250007659A1
公开(公告)日：2025-01-02
申请号：US18764008
申请日：2024-07-03
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Qifan CHEN , 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 LTF designs that support distributed transmissions. In some aspects, a transmitting device may obtain a sequence of values representing an LTF of a PPDU and may map the sequence of values to a number (N) of noncontiguous subcarrier indices of a plurality of subcarrier indices spanning a wireless channel according to a distributed tone plan. In some implementations, the transmitting device may modulate the sequence of values on N tones, representing a logical RU, and map the N tones to the N noncontiguous subcarrier indices, respectively. In some other implementations, the sequence of values may be obtained based on relative locations of the N noncontiguous subcarrier indices in the wireless channel.
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公开(公告)号：US20240007241A1
公开(公告)日：2024-01-04
申请号：US18323333
申请日：2023-05-24
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Qifan CHEN , Youhan KIM
CPC classification number: H04L5/0041 , H04L5/0048 , H04L5/0069 , H04W52/286
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 LTF designs that support distributed transmissions. In some aspects, a transmitting device may obtain a sequence of values representing an LTF of a PPDU and may map the sequence of values to a number (N) of noncontiguous subcarrier indices of a plurality of subcarrier indices spanning a wireless channel according to a distributed tone plan. In some implementations, the transmitting device may modulate the sequence of values on N tones, representing a logical RU, and map the N tones to the N noncontiguous subcarrier indices, respectively. In some other implementations, the sequence of values may be obtained based on relative locations of the N noncontiguous subcarrier indices in the wireless channel.
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公开(公告)号：US20230069075A1
公开(公告)日：2023-03-02
申请号：US17402475
申请日：2021-08-13
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Youhan KIM , Qifan CHEN
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.
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Patent Agency Ranking
公开(公告)号：US20250125934A1
公开(公告)日：2025-04-17
申请号：US18603011
申请日：2024-03-12
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Bin TIAN , Youhan KIM , Qifan CHEN , Chih-Yuan CHU
Abstract: This disclosure provides methods, components, devices and systems for reducing out-of-band emission (OOBE) for transmissions associated with a distributed resource unit (RU) (dRU) allocation. Some aspects more specifically relate to introducing more unevenness in terms of tone spacing to a first subset of dRUs associated with a given bandwidth and maintaining relatively more even tone spacing for a second subset of dRUs associated with that given bandwidth. In some implementations, for example, a complete set of dRUs associated with a bandwidth may include a first subset of dRUs and a second subset of dRUs, with dRUs of the first subset having more uneven tone spacings as compared to dRUs of the second subset. In some aspects, the first subset of dRUs may include dRUs associated with relatively fewer tones as compared to dRUs of the second subset.
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公开(公告)号：US20250125919A1
公开(公告)日：2025-04-17
申请号：US18952137
申请日：2024-11-19
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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7.发明申请公开(公告)号：US20250096932A1
公开(公告)日：2025-03-20
申请号：US18658764
申请日：2024-05-08
Applicant: QUALCOMM Incorporated
Inventor： Jialing Li CHEN , Kanke WU , Sameer VERMANI , Bin TIAN , Youhan KIM , Qifan CHEN
Abstract: This disclosure provides methods, components, devices and systems for managing long low-density parity check (LDPC) codewords in ultra high reliability (UHR) systems. One method for wireless communication may be performable at a transmitter device or node. The method may include transmitting signaling to a receiver device or node indicating that the transmitter device supports use of a first LDPC codeword length that is greater than or equal to a threshold LDPC codeword length. The method may further include transmitting an LDPC codeword of the first LDPC codeword length (e.g., a long LDPC codeword) to the receiver device when one or more conditions are satisfied.
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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：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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