公开(公告)号：WO2021101901A1

公开(公告)日：2021-05-27

申请号：PCT/US2020/060905

申请日：2020-11-17

Applicant: QUALCOMM INCORPORATED

Inventor： YANG, Lin ,  TIAN, Bin ,  DOAN, Dung Ngoc

IPC: H04L1/00

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：WO2020086529A1

公开(公告)日：2020-04-30

申请号：PCT/US2019/057354

申请日：2019-10-22

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  VERMANI, Sameer ,  YANG, Lin ,  CHEN, Jialing Li

IPC: H04L1/00

Abstract: In some aspects, methods and apparatus for wireless communications are configured to generate a packet for wireless communication where the packet includes a mark symbol in a preamble of the packet where the mark symbol includes a signature or stamp field in the mark to provide protocol information that indicates the protocol of the packet, such as an 802.11 EHT packet. In some other aspects, a cyclic redundancy check field in the mark symbol may be manipulated in various ways to indicate the protocol of the packet in lieu of providing the signature or stamp field.

公开(公告)号：WO2020072961A3

公开(公告)日：2020-04-09

申请号：PCT/US2019/054799

申请日：2019-10-04

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  VERMANI, Sameer ,  KIM, Youhan ,  YANG, Lin

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described for control signaling in next generation wireless local area network (WLAN) environments. A message transmitted by an access point may allocate resources to a plurality of stations. The access point may be configured to allocate up to 320 MHz of total bandwidth along with coarse punctures. The access point may also allocate up to eight space-time streams to each station in a multi-user multiple-input multiple output (MU-MIMO) transmission, and support simultaneous transmission to up to sixteen stations. To support 320 MHz bandwidth and up to sixteen stations, one or more signaling fields used in other environments may be repurposed to effectively signal the additional resources available in a next generation WLAN.

公开(公告)号：WO2020033815A1

公开(公告)日：2020-02-13

申请号：PCT/US2019/045882

申请日：2019-08-09

Applicant: QUALCOMM INCORPORATED

Inventor： TIAN, Bin ,  SAMPATH, Hemanth ,  VERMANI, Sameer ,  YANG, Lin ,  DOAN, Dung Ngoc ,  MERLIN, Simone ,  ASTERJADHI, Alfred ,  CHEN, Jialing Li ,  SHELLHAMMER, Stephen Jay

IPC: H04L1/18 ,  H04L1/00 ,  H04L1/16

Abstract: 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). A station (STA) may send a HARQ transmission to another STA. The HARQ protocol may support the use of different types of feedback from the receiving STA to control the HARQ retransmission process. This disclosure provides example message formats to support HARQ transmission and HARQ feedback in a WLAN.

公开(公告)号：WO2019178493A1

公开(公告)日：2019-09-19

申请号：PCT/US2019/022500

申请日：2019-03-15

Applicant: QUALCOMM INCORPORATED

Inventor： CHEN, Jialing Li ,  YANG, Lin ,  TIAN, Bin ,  VERMANI, Sameer ,  VERMA, Lochan

IPC: H04L27/26

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for communicating over a wireless communication network. A wireless communication device may be configured to generate and transmit a message according to a tone plan for transmission via one of a 240 or 320 MHz channel bandwidth. The message may include a short training field (STF) and a long training field (LTF). The STF may be used by a receiver to adjust an automatic gain control (AGC) function. The LTF may be used for channel estimation. In some implementations, the STF may have a data tone plan formed from a concatenated sequence of sub-STFs. A phase rotation applied to at least one of the sub-STFs of the concatenated sequence may reduce a peak-to-average-power ratio (PAPR) of the message as compared to a non-phase rotated concatenated sequence of sub-STFs.

公开(公告)号：WO2019161189A1

公开(公告)日：2019-08-22

申请号：PCT/US2019/018205

申请日：2019-02-15

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  VERMANI, Sameer ,  YANG, Lin ,  CHEN, Jialing Li ,  KIM, Youhan

IPC: H04L5/00

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for partial bandwidth feedback based on punctured sounding. Punctured sounding is used by a transmitting device that omits portions of a channel bandwidth based on a puncturing pattern. The puncturing pattern may be based on an exclusion bandwidth zone to avoid transmissions on portions of channels that may interfere with an incumbent system transmission. The puncturing pattern may be indicated in a null data packet announcement (NDPA) to inform the receiving device that a subsequent NDP will be punctured. The receiving device may determine the feedback by measuring the portions of the NDP that are not punctured. Beamforming may be enhanced by using punctured sounding between two beamforming endpoints.

公开(公告)号：WO2019089598A3

公开(公告)日：2019-05-09

申请号：PCT/US2018/058216

申请日：2018-10-30

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  YANG, Lin ,  CHEN, Jialing Li ,  VERMANI, Sameer ,  KIM, Youhan

IPC: H04L5/00

Abstract: The present disclosure provides techniques for preamble puncturing in wireless local area networks (WLANs). In one implementation, an access point (AP) can identify, within a channel width, one or more bandwidth regions associated with incumbent technologies. The AP can broadcast or advertise, to a basic service set (BSS) initiated or started by the AP, a preamble puncture pattern in one or more management frames, the preamble puncture pattern being based on the bandwidth regions associated with incumbent technologies. In another implementation, an AP can identify a single user (SU) preamble puncture transmission, and can signal in a common portion of a SIG-B field of a multi-user (MU) PPDU format that a resource unit (RU) size is assigned to a same user to indicate the SU preamble puncture transmission. Although these techniques may be used in any frequency band, typical frequency bands may include, but are not limited to, a 2.4 GHz band, a 5 GHz band, and/or a 6 GHz band.

公开(公告)号：WO2019089598A2

公开(公告)日：2019-05-09

申请号：PCT/US2018/058216

申请日：2018-10-30

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  YANG, Lin ,  CHEN, Jialing Li ,  VERMANI, Sameer ,  KIM, Youhan

Abstract: The present disclosure provides techniques for preamble puncturing in wireless local area networks (WLANs). In one implementation, an access point (AP) can identify, within a channel width, one or more bandwidth regions associated with incumbent technologies. The AP can broadcast or advertise, to a basic service set (BSS) initiated or started by the AP, a preamble puncture pattern in one or more management frames, the preamble puncture pattern being based on the bandwidth regions associated with incumbent technologies. In another implementation, an AP can identify a single user (SU) preamble puncture transmission, and can signal in a common portion of a SIG-B field of a multi-user (MU) PPDU format that a resource unit (RU) size is assigned to a same user to indicate the SU preamble puncture transmission. Although these techniques may be used in any frequency band, typical frequency bands may include, but are not limited to, a 2.4 GHz band, a 5 GHz band, and/or a 6 GHz band.

公开(公告)号：WO2017193028A2

公开(公告)日：2017-11-09

申请号：PCT/US2017/031349

申请日：2017-05-05

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  VERMANI, Sameer ,  TIAN, Bin ,  YANG, Lin ,  BANERJEA, Raja ,  ASTERJADHI, Alfred

IPC: H04W74/04

CPC classification number: H04W74/04 ,  H04W74/006 ,  H04W84/12

Abstract: The present disclosure provides various aspects related to techniques for generating trigger frames, at an access point (AP), that reduce the overhead associated with triggering an uplink transmission from the wireless station (STA). Features of the present disclosure achieve this by, for example, utilizing a single per-user information field of the trigger to signal a plurality of random access resource units that may be allocated to the one or more STAs in the network. Such a technique is an improvement over the conventional system that require each random access resource unit to be signaled separately in a separate per-user information field (thus increasing the overhead). Additionally, aspects of the present disclosure allow the AP to effectively signal to the STA whether the one or more resources allocated to the at least one STA are a single user resource unit allocation or a multi-user resource unit allocation.

Abstract translation: 本公开提供了与用于在接入点（AP）处生成触发帧的技术有关的各个方面，其减少与触发来自无线站（STA）的上行链路传输相关联的开销。 本公开的特征通过例如利用触发器的单个每用户信息字段来发信号通知可以被分配给网络中的一个或多个STA的多个随机接入资源单元来实现。 这种技术是对常规系统的改进，其要求每个随机接入资源单元在单独的每个用户信息字段中单独发信号（从而增加开销）。 此外，本公开的各方面允许AP有效地向STA信号通知分配给至少一个STA的一个或多个资源是单用户资源单元分配还是多用户资源单元分配。

公开(公告)号：WO2017143201A1

公开(公告)日：2017-08-24

申请号：PCT/US2017/018388

申请日：2017-02-17

Applicant: QUALCOMM INCORPORATED

Inventor： YANG, Lin ,  TIAN, Bin ,  KIM, Youhan

IPC: H04L5/00 ,  H04L1/00

CPC classification number: H04W40/02 ,  H04L1/0005 ,  H04L1/0011 ,  H04L1/0015 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0073 ,  H04W28/20 ,  H04W52/22 ,  H04W72/044

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus is configured to determine an RU allocated to the apparatus within a communication bandwidth for OFDMA transmission. The apparatus is configured to transmit a data packet on the allocated RU based on requirements associated with an amount of inter-RU interference to other RUs allocated to other wireless devices. In an aspect, the requirements may include at least one of an error vector magnitude (EVM) requirement or a spectral mask requirement.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机可读介质。 在一个方面中，一种装置被配置为确定在用于OFDMA传输的通信带宽内分配给该装置的RU。 该装置被配置为基于与分配给其他无线设备的其他RU相关联的与RU间干扰量相关联的要求，在分配的RU上传送数据分组。 在一个方面，要求可以包括误差矢量幅度（EVM）要求或频谱掩模要求中的至少一个。