公开(公告)号：US20130177090A1

公开(公告)日：2013-07-11

申请号：US13710296

申请日：2012-12-10

Applicant: Qualcomm Incorporated

Inventor： Lin Yang ,  Didier Johannes Richard Van Nee ,  Sameer Vermani ,  Hemanth Sampath

IPC: H04L12/24

CPC classification number: H04L41/16 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0091 ,  H04L25/0232 ,  H04L27/2602

Abstract: Systems, methods, and devices for communicating long packets are described herein. In one aspect, an apparatus for wireless communication includes a receiver and a processor. The receiver wirelessly receives via wireless local area network a data unit comprising a plurality of training fields interposed between data symbols. The plurality of training fields includes a first training field followed by a second training field. The first training field includes a gain control sequence, and the second training field includes a channel estimation sequence. The processor decodes at least one data symbol based on the plurality of training fields. In another aspect, an apparatus for wireless communication includes a processor and a transmitter. The processor generates a data unit comprising a plurality of training fields inserted between data symbols, and the transmitter wirelessly transmits the data unit via wireless local area network.

Abstract translation: 这里描述了用于传送长分组的系统，方法和设备。 一方面，一种用于无线通信的装置包括接收机和处理器。 接收机经由无线局域网无线地接收包括插入在数据符号之间的多个训练场的数据单元。 多个训练场包括跟随有第二训练场的第一训练场。 第一训练场包括增益控制序列，第二训练场包括信道估计序列。 处理器基于多个训练场解码至少一个数据符号。 在另一方面，一种用于无线通信的装置包括处理器和发射器。 处理器产生包括插入在数据符号之间的多个训练场的数据单元，并且发射机经由无线局域网无线地发送数据单元。

公开(公告)号：US20130170523A1

公开(公告)日：2013-07-04

申请号：US13729785

申请日：2012-12-28

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Lin Yang ,  Eugene J. Balk ,  Hemanth Sampath

IPC: H04B1/707

CPC classification number: H04B1/707 ,  H04B1/7075 ,  H04L25/0226 ,  H04L27/2602

Abstract: Systems, methods, and devices for communicating in a wireless network are described herein. In an aspect, a method of transmitting a data unit includes generating a data unit. The data unit includes one or more short training field (STF) sequences. The method further includes encoding each of the STF sequences with a pseudo-random spreading code. The code is based on an addressee of the data unit. The method further includes transmitting, at a transmitter, the data unit over a wireless channel. In another aspect, a method of processing a data unit includes receiving, at a receiver, a data unit. The data unit includes one or more STF sequences. The method further includes determining whether the data unit comprises one or more differentially encoded symbols. The method further includes receiving one or more long training field (LTF) sequences when the data unit does not comprise one or more differentially encoded symbols.

Abstract translation: 本文描述了用于在无线网络中通信的系统，方法和设备。 一方面，发送数据单元的方法包括生成数据单元。 数据单元包括一个或多个短训练场（STF）序列。 该方法还包括用伪随机扩展码对每个STF序列进行编码。 代码是基于数据单元的收件人。 该方法还包括通过无线信道在发射机处发送数据单元。 在另一方面，一种处理数据单元的方法包括在接收器处接收数据单元。 数据单元包括一个或多个STF序列。 该方法还包括确定数据单元是否包括一个或多个差分编码符号。 该方法还包括当数据单元不包括一个或多个差分编码符号时，接收一个或多个长训练场（LTF）序列。

公开(公告)号：US12219590B2

公开(公告)日：2025-02-04

申请号：US17103558

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Youhan Kim

IPC: H04W72/542 ,  H04L1/00 ,  H04L5/00

Abstract: This disclosure provides methods, devices and systems for data parsing for resource unit (RU) aggregation. A wireless communication device (such as an access point (AP) or a station (STA)) may allocate a set of resource units (RUs) for a receiving device in a basic service set (BSS). The set of RUs may be associated with multiple bandwidth segments of a bandwidth allocation and may be non-contiguous or contiguous. The wireless communication device may determine a data parsing and encoding scheme for a set of information bits. In some implementations, the encoded bits may be distributed to the set of RUs based on a distance to tone mapping value or pilot tone location or both of the aggregated set of RUs different than respective values or pilot tone locations of the RUs in the aggregated set of RUs.

公开(公告)号：US12177154B2

公开(公告)日：2024-12-24

申请号：US17388344

申请日：2021-07-29

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Alfred Asterjadhi ,  Yanjun Sun ,  Bin Tian ,  Lin Yang ,  Jialing Li Chen ,  George Cherian ,  Youhan Kim

IPC: H04L5/00

Abstract: This disclosure provides methods, devices and systems for generating enhanced sounding packets. Some implementations more specifically relate to sounding packet designs that support enhancements to wireless communication protocols associated with the Institute of Electrical and Electronics Engineers (IEEE) 802.11be amendment, and future generations, of the IEEE 802.11 standard. In some implementations, an enhanced null data packet announcement (NDPA) frame may be configurable to support multiple versions of the IEEE 802.11 standard. For example, the enhanced NDPA frame may be configured in accordance with a legacy or a non-legacy NDPA frame format. In some other implementations, the enhanced NDPA frame may include a subfield carrying information identifying a particular basic service set (BSS) which may be associated with one or more STA information fields. Still further, in some implementations, an Extremely High Throughput (EHT) PPDU may include signaling to indicate whether the EHT PPDU is formatted as a sounding NDP.

公开(公告)号：US20240365320A1

公开(公告)日：2024-10-31

申请号：US18394707

申请日：2023-12-22

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Youhan Kim ,  Qifan Chen

IPC: H04W72/1273 ,  H04L1/00 ,  H04L5/00 ,  H04W72/0453

CPC classification number: H04W72/1273 ,  H04L1/0068 ,  H04L5/0041 ,  H04W72/0453

Abstract: This disclosure provides methods, components, devices and systems for extending distributed resource units (dRUs) beyond 80 MHz. Some aspects more specifically relate to supporting enhanced tone distribution mapping schemes and signaling. In some examples, a wireless station may receive, from an access point, scheduling information for a physical layer (PHY) protocol data unit (PDU) (PPDU) to be transmitted by one or more wireless stations including the wireless station over a wireless channel. The scheduling information may indicate one or more dRUs within the wireless channel, each dRU comprising a respective set of tones distributed across a distribution bandwidth of the wireless channel. The distribution bandwidth may be larger than 80 MHZ, and the one or more dRUs including a first dRU allocated to the wireless station. The wireless station may modulate a plurality of symbols for the PPDU onto the set of tones of the first dRU. The wireless station may transmit the plurality of symbols via the first dRU.

公开(公告)号：US12126550B2

公开(公告)日：2024-10-22

申请号：US18327216

申请日：2023-06-01

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  Alfred Asterjadhi ,  Abhishek Pramod Patil ,  Sameer Vermani ,  Bin Tian ,  Stephen Jay Shellhammer ,  Lochan Verma ,  Lin Yang ,  Jialing Li Chen

IPC: H04L5/00 ,  H04W16/14 ,  H04W72/044 ,  H04W72/27 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04L5/0035 ,  H04L5/0007 ,  H04L5/0037 ,  H04W16/14 ,  H04W72/044 ,  H04W72/27 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/08

Abstract: Methods, systems, and devices for wireless communications are described. An access point (AP) may transmit, to a second AP and during a first portion of a transmission opportunity (TxOP), a request to participate in a multi-user (MU) transmission. The AP may receive, from the second AP and during the first portion of the TxOP, an indication of intent to participate in the MU transmission during the second portion of the TxOP, the indication of intent including a resource request of the second AP for participation in the MU transmission. The AP may transmit, during an initial period of the second portion of the TxOP, a trigger signal to the second AP indicating a set of one or more resources for the second AP during the MU transmission. The AP may participate, in conjunction with the second AP and during the second portion of the TxOP, in the MU transmission.

公开(公告)号：US12119850B2

公开(公告)日：2024-10-15

申请号：US18153325

申请日：2023-01-11

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li Chen ,  Lin Yang ,  Bin Tian

IPC: H04B1/04

CPC classification number: H04B1/04 ,  H04B2001/0491

Abstract: This disclosure provides wireless communication methods, components, devices and systems for applying spectral masks and spectral flatness parameters in conjunction with transmission of millimeter wave (mmWave) signals in wireless communication networks. In some examples, in conjunction with transmission of an mmWave signal, a wireless communication device can apply a derivative spectral mask featuring transitional offset ranges that correspond to transitional frequency offset ranges of a spectral mask for a nominal carrier signal, scaled according to a ratio between a bandwidth of the mmWave signal and a bandwidth of the nominal carrier signal. In some examples, the derivative spectral mask can feature an in-band frequency offset range that is wider than a scaled width of an in-band frequency offset range of the spectral mask for the nominal carrier signal.

公开(公告)号：US20240340701A1

公开(公告)日：2024-10-10

申请号：US18296772

申请日：2023-04-06

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Youhan Kim ,  Sameer Vermani

IPC: H04W28/08 ,  H04L5/00 ,  H04W72/543

CPC classification number: H04W28/0975 ,  H04L5/0044 ,  H04L5/0064 ,  H04W72/543 ,  H04W84/12

Abstract: This disclosure provides methods, components, devices and systems for physical layer (PHY) latency reduction. Some aspects more specifically relate to PHY protocol data unit (PPDU) designs that support inserting low-latency traffic into a transmission opportunity (TXOP) occupied by non-low-latency traffic. In some implementations, during a TXOP, an access point (AP) may output an aggregated PPDU (A-PPDU) that is aggregated in a time domain and includes an A-PPDU header and one or more A-PPDU subframes. The AP may obtain, from an application layer, a low-latency PPDU (LL-PPDU) subframe and may insert the LL-PPDU subframe in place of at least one of the one or more A-PPDU subframes. The AP may output the LL-PPDU subframe during the TXOP. A wireless station (STA) receiving the A-PPDU header and the one or more A-PPDU subframes may detect the presence of the LL-PPDU subframe and may receive and decode the LL-PPDU subframe.

公开(公告)号：US12069663B2

公开(公告)日：2024-08-20

申请号：US17816370

申请日：2022-07-29

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Dung Ngoc Doan

IPC: H04W72/20 ,  H04J11/00 ,  H04W72/04 ,  H04W72/044

CPC classification number: H04W72/20 ,  H04J11/00 ,  H04W72/046

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.

公开(公告)号：US20240163686A1

公开(公告)日：2024-05-16

申请号：US18162394

申请日：2023-01-31

Applicant: QUALCOMM Incorporated

Inventor： Gaurang Naik ,  Abhishek Pramod Patil ,  George Cherian ,  Yanjun Sun ,  Sai Yiu Duncan Ho ,  Alfred Asterjadhi ,  Abdel Karim Ajami ,  Lin Yang

IPC: H04W16/28 ,  H04B7/06 ,  H04W8/22 ,  H04W24/08

CPC classification number: H04W16/28 ,  H04B7/0617 ,  H04W8/22 ,  H04W24/08

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless communication device may determine a first set of parameters for communicating with a second wireless communication device within a first set of time intervals, the first set of parameters associated with a beamforming procedure. The first wireless communication device may predict, based on inputting the first set of parameters to a machine learning model, a second set of parameters corresponding to a second set of time intervals in the future after the first set of time intervals. The first wireless communication device may select a beamforming configuration for communications between the first wireless communication device and the second wireless communication device based on the second set of parameters, and may communicate with the second wireless communication device within the second set of time intervals in accordance with the beamforming configuration.