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41. 发明授权

US08948744B2 Spatio-temporal random voting scheme for cognitive networks 有权
标题翻译：认知网络的时空随机投票方案
公开(公告)号：US08948744B2
公开(公告)日：2015-02-03
申请号：US13916297
申请日：2013-06-12
申请人： QUALCOMM Incorporated
发明人： Yong Jin Kim , Lakshminath Reddy Dondeti , Stephen Jay Shellhammer , Wenyi Zhang
IPC分类号： H04W24/00 , H04W72/02 , H04W72/08
CPC分类号： H04W24/00 , H04W72/02 , H04W72/082 , H04W84/18
摘要： A spatio-temporal random voting scheme is provided that incorporates location distribution, spatial randomness, and temporal randomness in the collection of information from a plurality of sensing devices within the cognitive network. The region is divided into a plurality of sectors, where each sector is a portion of the region. A subset of sectors is selected from the plurality of sectors in the region to provide spatial randomness. A device is randomly selected from each sector in the subset of sectors to provide additional spatial randomness to the information collection process. Temporal randomness may be introduced by randomly selecting a timeslot within a sensing window period in which devices are to scan a frequency spectrum band to determine if a signal energy above a threshold is detected. Sensing reports are then collected from the selected sensing devices and used to determine whether the frequency spectrum band is available or in use.
摘要翻译：提供了一种时空随机投票方案，其包括来自认知网络内的多个感测装置的信息收集中的位置分布，空间随机性和时间随机性。该区域被分成多个扇区，其中每个扇区是区域的一部分。从区域中的多个扇区中选择扇区的子集以提供空间随机性。从扇区子集中的每个扇区随机选择一个设备，以向信息收集过程提供额外的空间随机性。可以通过在感测窗口周期内随机选择时隙来引入时间随机性，其中设备将扫描频谱带以确定是否检测到高于阈值的信号能量。然后从所选择的感测装置收集感测报告，并用于确定频谱带是可用还是正在使用。

42. 发明公开

US20240163059A1 RANGING NULL DATA PACKETS FOR WIDE BANDWIDTH NETWORKS 审中-公开
公开(公告)号：US20240163059A1
公开(公告)日：2024-05-16
申请号：US18054531
申请日：2022-11-10
申请人： QUALCOMM Incorporated
发明人： Stephen Jay Shellhammer , Bin Tian , Alireza Raissinia , Yanjun Sun
IPC分类号： H04L5/00 , H03M13/00 , H04L69/22
CPC分类号： H04L5/0053 , H03M13/6312 , H04L5/0064 , H04L69/22
摘要： This disclosure provides methods, components, devices and systems for ranging measurement procedures between two wireless devices that communicate in wide bandwidth networks. Some aspects more specifically relate to null data packet (NDP) transmissions via a 320 megahertz (MHz) bandwidth. In some examples, a first wireless device and a second wireless device may participate in a ranging measurement procedure and may exchange one or more NDPs to facilitate distance measurements and one or both of the first wireless device and the second wireless device may indicate that an associated protocol data unit (PDU) is a 320 MHz ranging NDP (e.g., an NDP of a ranging variant associated with a bandwidth of 320 MHz) via one or more bits of the preamble of the PDU. The one or more bits may be included in a universal signal (U-SIG) field of the preamble of the PDU.

43. 发明授权

US11916676B2 Memory management for hybrid automatic repeat request (HARQ) in a wireless local area network (WLAN) 有权
公开(公告)号：US11916676B2
公开(公告)日：2024-02-27
申请号：US16917543
申请日：2020-06-30
申请人： QUALCOMM Incorporated
发明人： Alfred Asterjadhi , George Cherian , Abhishek Pramod Patil , Lochan Verma , Jialing Li Chen , Stephen Jay Shellhammer , Dung Ngoc Doan , Bin Tian
IPC分类号： H04L1/1812 , H04L1/1607 , H04L5/00 , H04W80/02 , H04W84/12
CPC分类号： H04L1/1812 , H04L1/1614 , H04L1/1621 , H04L1/1819 , H04L5/0055 , H04W74/0816 , H04W80/02 , H04W84/12
摘要： This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for implementing a hybrid automatic repeat request (HARQ) protocol in a wireless local area network (WLAN). In some aspects, a first WLAN device may transmit a first HARQ frame to a second WLAN device. The first WLAN device may receive a first feedback message from the second WLAN device. The first feedback message may be a HARQ Block Acknowledgement (H-BA) message. The first WLAN device may determine to enable the HARQ protocol based on the first feedback message. The first WLAN device may receive an indication of an amount of memory available at the second WLAN device for processing HARQ transmissions. The first WLAN device may transmit a second HARQ frame to the second WLAN device based, at least in part, on the amount of memory available at the second WLAN device for processing HARQ transmissions.

44. 发明公开

US20230171818A1 PRIORITY ACCESS IN A WIRELESS LOCAL AREA NETWORK (WLAN) 审中-公开
公开(公告)号：US20230171818A1
公开(公告)日：2023-06-01
申请号：US18153159
申请日：2023-01-11
申请人： QUALCOMM Incorporated
发明人： George Cherian , Alfred Asterjadhi , Bin Tian , Stephen Jay Shellhammer
IPC分类号： H04W74/08 , H04W4/90 , H04W12/06 , H04W48/06
CPC分类号： H04W74/0875 , H04W4/90 , H04W12/06 , H04W48/06
摘要： This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for priority access on a shared wireless channel. A priority station (STA), an access point (AP), or a network operator may activate a priority access service. The priority access service provides priority access to authorize priority STAs by allowing them to use more aggressive contention parameters for contention-based access of the wireless channel as compared to other STAs. In some implementations, non-priority STAs may be configured with weakened contention parameters to increase or ensure the likelihood that a priority STA will win contention for access to the wireless channel.

45. 发明申请

US20230113177A1 SECURE LONG TRAINING FIELD (LTF) 有权
公开(公告)号：US20230113177A1
公开(公告)日：2023-04-13
申请号：US18065523
申请日：2022-12-13
申请人： QUALCOMM Incorporated
发明人： Stephen Jay Shellhammer , Bin Tian , Alireza Raissinia , Youhan Kim
IPC分类号： H04L27/26 , H04L5/00
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.

46. 发明申请

US20230033864A1 SCALING AND QUANTIZATION FOR CHANNEL STATE INFORMATION REPORTING 有权
公开(公告)号：US20230033864A1
公开(公告)日：2023-02-02
申请号：US17382145
申请日：2021-07-21
申请人： QUALCOMM Incorporated
发明人： Stephen Jay Shellhammer , Bin Tian , Alireza Raissinia , Simone Merlin
IPC分类号： H04L5/00 , H04B17/318
摘要： Methods, systems, and devices for wireless communications are described. A station (STA) may receive a null data packet (NDP) on a plurality of subcarriers, and the STA may generate a channel state information (CSI) matrix for each subcarrier of the plurality of subcarriers. After generating a CSI matrix for a subcarrier, such as at least one subcarrier, the STA may scale each value in the CSI matrix using a power-of-two value to minimize complexity. Specifically, instead of scaling each value in the CSI matrix to a value between zero and one using divisions (for example, which may be computationally expensive), the STA may use shifting to scale each value in the CSI matrix. The STA may then quantize the scaled values in the CSI matrix for reporting, and the STA may transmit the quantized, scaled values in the CSI matrix in a CSI report.

47. 发明授权

US11469859B2 Hybrid automatic repeat request (HARQ) technique based on receiver processing capability 有权
公开(公告)号：US11469859B2
公开(公告)日：2022-10-11
申请号：US16852364
申请日：2020-04-17
申请人： QUALCOMM Incorporated
发明人： Stephen Jay Shellhammer , Jialing Li Chen , Dung Ngoc Doan , Bin Tian , Youhan Kim , Alfred Asterjadhi
IPC分类号： H04L1/18 , H04W8/24 , H04W80/02 , H04L5/00 , H04W84/12
摘要： This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for implementing a retransmission protocol in a wireless local area network (WLAN). The retransmission protocol may be based on a hybrid automatic repeat request (HARQ) protocol that supports a delayed acknowledgement for a HARQ retransmission based on receiver processing capability. A first WLAN device may determine that a second WLAN device requires more time to process the HARQ retransmission and may transmit a different communication (interlaced within the HARQ process) to either the second WLAN device or a third WLAN device during the time that the second WLAN device is processing the HARQ retransmission.

48. 发明授权

US11233608B2 HARQ sequences in wireless networks 有权
公开(公告)号：US11233608B2
公开(公告)日：2022-01-25
申请号：US16855885
申请日：2020-04-22
申请人： QUALCOMM Incorporated
发明人： Jialing Li Chen , Stephen Jay Shellhammer , Alfred Asterjadhi , Dung Ngoc Doan , Bin Tian , Youhan Kim
IPC分类号： H04L1/18 , H04W28/04 , H04L5/00 , H04L1/00
摘要： This disclosure provides systems, methods and apparatuses for data retransmissions in a wireless network. In some implementations, a wireless communication device may transmit a first data unit to a receiving device, may receive a first hybrid automatic repeat request (HARQ) feedback frame indicating that a portion of the first data unit was not successfully decoded by the receiving device, may retransmit the indicated portion of the first data unit to the receiving device in response to the first HARQ feedback frame, and may transmit a second data unit, different than the first data unit, to the receiving device concurrently with the retransmission of the indicated portion of the first data unit.

49. 发明申请

US20210273757A1 PHYSICAL (PHY) LAYER CONTROL FOR WIRELESS LOCAL AREA NETWORK (WLAN) COMMUNICATION 有权
公开(公告)号：US20210273757A1
公开(公告)日：2021-09-02
申请号：US17180525
申请日：2021-02-19
申请人： QUALCOMM Incorporated
发明人： Stephen Jay Shellhammer , Bin Tian
IPC分类号： H04L5/00 , H04L27/26
摘要： This disclosure provides methods, devices and systems for wireless communication, and particularly, methods, devices and systems for physical (PHY) layer control signaling. A first physical layer convergence protocol (PLCP) protocol data unit (PPDU) may precede a second PPDU. The first PPDU may be referred to as a PHY control PPDU and may include a physical layer control signaling field (CNT-SIG) that informs one or more stations (STAs) regarding a physical layer configuration they should use for the second PPDU. The PHY control PPDU may enable dynamic subchannel assignments for one or more identified STAs, legacy STAs, or sub-bandwidth operating devices. The techniques of this disclosure may enable sharing of a wide bandwidth wireless channel by different types of devices or different basic service sets (BSSs) assigned to different subchannels of the wireless channel.

50. 发明申请

US20210167889A1 LINK ADAPTATION USING TRANSMISSION RATE OPTIONS 有权
公开(公告)号：US20210167889A1
公开(公告)日：2021-06-03
申请号：US17103550
申请日：2020-11-24
申请人： QUALCOMM Incorporated
发明人： Lin Yang , Bin Tian , Dung Ngoc Doan , Sameer Vermani , Stephen Jay Shellhammer , Jialing Li Chen
IPC分类号： H04L1/00 , H04W24/08
摘要： 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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