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公开(公告)号：US20240260114A1
公开(公告)日：2024-08-01
申请号：US18160285
申请日：2023-01-26
发明人： Lin YANG , Bin TIAN , Alecsander Petru EITAN , Youhan KIM
CPC分类号： H04W76/19 , H04W74/0816
摘要： This disclosure provides wireless communication methods, components, devices and systems for link recovery in wireless communication networks. Some aspects more specifically relate to the recovery of lost wireless communication links for which initial link establishment has been aided by communications over anchor links of different frequency bands than those of the lost wireless communication links. According to some aspects, a recovery mechanism can be implemented that enables involved devices to recover such “extension” links using communications over their associated frequency bands, without needing to revert to communication over their corresponding anchor links. In some examples, such a recovery mechanism can be implemented to enable recovery of a millimeter wave (mmWave) extension link of a non-standalone mmWave basic service set (BSS) without needing to revert to communication over a sub-7 GHz anchor link.
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公开(公告)号：US20240172234A1
公开(公告)日：2024-05-23
申请号：US18426866
申请日：2024-01-30
发明人： Lin YANG , Bin TIAN , Dung Ngoc DOAN
IPC分类号： H04W72/20 , H04J11/00 , H04W72/044
CPC分类号： H04W72/20 , H04J11/00 , H04W72/046
摘要： 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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公开(公告)号：US20240171436A1
公开(公告)日：2024-05-23
申请号：US18390180
申请日：2023-12-20
CPC分类号： H04L27/2613 , H04L5/0023 , H04L5/0048 , H04L27/2605 , H04B7/0452
摘要： This disclosure provides methods, devices and systems for generating a secure long training field (LTF). In some implementations, the secure LTF may include a randomized bit sequence that is difficult, if not impossible, to replicate by any device other than the transmitting device and the intended receiving device. For example, the transmitting device may use a block cipher or stream cipher to generate a pseudorandom bit sequence and may select a subset of bits of the pseudorandom bit sequence to be mapped to a sequence of modulation symbols representing an LTF symbol of the secure LTF. More specifically, each of the modulation symbols is mapped to a respective one of a number of subcarriers spanning a bandwidth of the secure LTF. The transmitting device may further transmit a physical layer convergence protocol (PLCP) protocol data unit (PPDU) that includes the secure LTF to the receiving device.
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公开(公告)号：US20240171329A1
公开(公告)日：2024-05-23
申请号：US18425607
申请日：2024-01-29
IPC分类号： H04L5/00 , H04W72/0453
CPC分类号： H04L5/0044 , H04W72/0453 , H04L5/0007
摘要： 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：US20240163860A1
公开(公告)日：2024-05-16
申请号：US18423033
申请日：2024-01-25
IPC分类号： H04W72/044 , H04L69/323
CPC分类号： H04W72/0466 , H04L69/323
摘要： This disclosure provides methods, devices and systems for encoding data for wireless communication to achieve a desired amplitude distribution. Some implementations more specifically relate to performing an encoding operation to shape the amplitudes of the resultant symbols such that the amplitudes have a non-uniform distribution. In some implementations of the non-uniform distribution, the probabilities associated with the respective amplitudes generally increase with decreasing amplitude. Some implementations enable the tracking of MPDU boundaries to facilitate successful decoding by a receiving device. Additionally or alternatively, some implementations enable the determination of a packet length after performing the amplitude shaping, which enables a transmitting device to determine the number of padding bits to add to the payload and to signal the packet length to a receiving device so that the receiving device may determine the duration of the packet.
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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
CPC分类号： H04L1/0061 , H04L27/36
摘要： 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
摘要： 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
发明人： Lin YANG , Bin TIAN , Youhan KIM , Jialing Li CHEN
IPC分类号： H04L27/26
CPC分类号： H04L27/26025 , H04L27/2607 , H04L27/2628 , H04W84/12
摘要： 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
发明人： 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分类号： H04W74/0816 , H04W74/0866 , H04W72/1263 , H04W56/001 , H04W4/80
摘要： 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
发明人： Lin YANG , Bin TIAN , Dung Ngoc DOAN
摘要： 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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