公开(公告)号：US09681407B2

公开(公告)日：2017-06-13

申请号：US14581980

申请日：2014-12-23

Applicant: QUALCOMM Incorporated

Inventor： Bin Tian ,  Alfred Asterjadhi ,  Amin Jafarian ,  Santosh Paul Abraham ,  Simone Merlin

IPC: H04W56/00 ,  H04B7/0413 ,  H04L29/06 ,  H04B7/26

CPC classification number: H04W56/0015 ,  H04B7/0413 ,  H04B7/2681 ,  H04L69/22

Abstract: Aspects of the present disclosure provide apparatus, methods, processing systems, and computer program products for time synchronization function (TSF) rollover solutions for short beacons. Aspects of the present disclosure provide an apparatus for wireless communications. The apparatus generally includes a processing system configured to generate a time stamp with a first value of a first portion of a counter and generate a frame including a first field with the time stamp and a second field having one or more bits with a second value of the first portion of the counter, and an interface configured to output the frame for transmission to a receiving device.

公开(公告)号：US09668169B2

公开(公告)日：2017-05-30

申请号：US14575705

申请日：2014-12-18

Applicant: QUALCOMM Incorporated

Inventor： Amin Jafarian ,  Alfred Asterjadhi ,  Bin Tian

IPC: H04W28/06 ,  H04L12/801 ,  H04W28/20 ,  H04W84/12

CPC classification number: H04W28/065 ,  H04L47/29 ,  H04W28/20 ,  H04W84/12

Abstract: Systems and methods for wireless communications are disclosed. More particularly, aspects generally relate to techniques for indicating a minimum and maximum channel bandwidth in a frame (e.g., short frame). One or more bits in the frame, for example a management frame, may indicate both minimum and maximum bandwidths for communicating in the network. According to aspects, a wireless terminal may determine the minimum and maximum bandwidths for communicating in the network based on a mapping of different values of the one or more bits to combinations of minimum and maximum bandwidths. While any field in the frame may indicate the minimum and maximum bandwidth, according to aspects, the Basic Service Set (BSS) bandwidth (BW) field may be used for the indication.

公开(公告)号：US09648620B2

公开(公告)日：2017-05-09

申请号：US14467779

申请日：2014-08-25

Applicant: QUALCOMM Incorporated

Inventor： Rahul Tandra ,  Sameer Vermani ,  Bin Tian ,  Albert Van Zelst

IPC: H04W72/04 ,  H04J11/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W72/0453 ,  H04J11/0023 ,  H04J2011/0009 ,  H04L5/0037 ,  H04L27/2613

Abstract: A method includes generating a data packet at an access point. The data packet is to be communicated using a waveform that includes a first set of tones that is allocated to a first destination device and a second set of tones that is allocated to a second destination device. The first set of tones is non-overlapping with respect to the second set of tones, and each tone of the first set of tones and each tone of the second set of tones is an orthogonal frequency-division multiple access (OFDMA) tone. The method also includes transmitting the data packet to the first destination device via an institute of electrical and electronics engineers (IEEE) 802.11 wireless network and transmitting the data packet to the second destination device via the IEEE 802.11 wireless network.

公开(公告)号：US09608796B2

公开(公告)日：2017-03-28

申请号：US14265269

申请日：2014-04-29

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Gwendolyn Denise Barriac ,  Hemanth Sampath ,  Sameer Vermani ,  Bin Tian ,  Yan Zhou ,  Rahul Tandra

IPC: H04L5/00 ,  H04B7/26 ,  H04J1/02 ,  H04W52/02 ,  H04J1/14 ,  H04L1/18 ,  H04W74/02 ,  H04W74/08 ,  H04L1/16 ,  H04L1/00 ,  H04W74/00

CPC classification number: H04B7/2621 ,  H04B7/26 ,  H04J1/02 ,  H04J1/14 ,  H04L1/1685 ,  H04L1/18 ,  H04L1/1861 ,  H04L5/0005 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/0037 ,  H04L5/005 ,  H04L5/0055 ,  H04L5/006 ,  H04L5/0069 ,  H04L5/0073 ,  H04L5/0094 ,  H04L2001/0093 ,  H04W52/0212 ,  H04W52/0219 ,  H04W74/002 ,  H04W74/02 ,  H04W74/0816 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/449

Abstract: Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes receiving, at a first wireless device, a reference signal from an associated access point, the reference signal indicative of a time of joint transmission with at least a second wireless device. The method further includes transmitting a first communication to the access point based on the reference signal, the communication utilizing a first subset of wireless frequencies available for use. The first communication is concurrent with a second communication, from the second wireless device, utilizing a second subset of wireless frequencies, the second subset excluding the first subset.

公开(公告)号：US20170048823A1

公开(公告)日：2017-02-16

申请号：US15232711

申请日：2016-08-09

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Bin Tian ,  Sameer Vermani

IPC: H04W72/04 ,  H04B7/04 ,  H04L27/26

CPC classification number: H04W72/04 ,  H04B7/0452 ,  H04L27/2608 ,  H04W72/042 ,  H04W84/12

Abstract: A device may signal a resource allocation scheme in a high efficiency wireless local area network (WLAN) preamble. In one example, a high efficiency (HE) WLAN signaling field is used to signal a resource allocation pattern to multiple devices. The HE WLAN signaling field includes a common user field that is decodable by the multiple devices and includes a resource allocation field. The resource allocation indicates resource unit distributions to the multiple devices and indicates which resource units in a multi-user PPDU correspond to multi-user MIMO transmissions and which resource units correspond to OFDMA single-user transmissions. The HE WLAN signaling field also includes dedicated user fields that are assigned to certain devices. The order of the dedicated user fields corresponds to the allocated resource units. The HE WLAN signaling field is transmitted with a WLAN preamble to the multiple devices.

Abstract translation: 设备可以在高效无线局域网（WLAN）前导码中发信号通知资源分配方案。 在一个示例中，高效率（HE）WLAN信令字段用于向多个设备发送资源分配模式。 HE WLAN信令字段包括可由多个设备解码的公共用户字段，并且包括资源分配字段。 资源分配指示到多个设备的资源单元分布，并且指示多用户PPDU中的哪些资源单元对应于多用户MIMO传输，哪些资源单元对应于OFDMA单用户传输。 HE WLAN信令字段还包括分配给某些设备的专用用户字段。 专用用户字段的顺序对应于所分配的资源单元。 通过WLAN前导码向多个设备发送HE WLAN信令字段。

公开(公告)号：US20170041825A1

公开(公告)日：2017-02-09

申请号：US15227573

申请日：2016-08-03

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian

IPC: H04W28/06

CPC classification number: H04W28/065 ,  H04L27/2613 ,  H04L27/262

Abstract: Methods and apparatuses for communicating over a wireless communication network using a resource unit are disclosed herein. One method includes generating a high-efficiency long training (HE-LTF) field, based on at least one of a sequence x=[+1, +1, +1, −1, −1, −1, +1, −1, −1, +1, −1], a rotation pattern C=[c1−cy], a sequence M1=[c1.*x, c2.*x, c3.*x, c4.*x, c5.*x, c6.*x, c7.*x, c8.*x, c9.*x, c10.*x, c11.*x], a sequence M2=[+1, +1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1], and a sequence M3=[+1, +1, +1, −1, −1, +1, −1]. The method further includes transmitting the HE-LTF field.

Abstract translation: 本文公开了使用资源单元通过无线通信网络进行通信的方法和装置。 一种方法包括：基于序列x = [+ 1，+ 1，+ 1，-1，-1，-1，+ 1，...，...，...）中的至少一个生成高效长训练（HE-LTF） 1，-1，+1，-1]，旋转模式C = [c1-cy]，序列M1 = [c1。* x，c2。* x，c3。* x，c4。* x，c5。 * x，c6。* x，c7。* x，c8。* x，c9。* x，c10。* x，c11。* x]，序列M2 = [+ 1，+ 1，+ 1，+ ，+1，-1，-1，+1，+1，-1，+1，-1，+1]，序列M3 = [+ 1，+1，+ 1，-1， +1，-1]。 该方法还包括发送HE-LTF字段。

公开(公告)号：US20170012683A1

公开(公告)日：2017-01-12

申请号：US15194348

申请日：2016-06-27

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Bin Tian

IPC: H04B7/04 ,  H04L5/00

CPC classification number: H04B7/0452 ,  H04L1/0045 ,  H04L1/0057 ,  H04L5/0007

Abstract: Methods and apparatus for single and multi-user signal extensions or padding are provided. In various aspects, a number of symbols required to transmit a plurality of data bits to each of a plurality of wireless communication devices and a fraction of useful bits in a final symbol of each of the plurality of data bits is determined. A signaling extension length may also be determined based at least in part on the fraction of useful bits and a modulation and coding scheme (MCS) of each of the plurality of wireless communication devices. A plurality of data packets for each of the plurality of wireless communication devices are generated, with each data packet comprising the corresponding data bits and the signaling extension after the final symbol of each of the plurality of data packets.

Abstract translation: 提供了单用户和多用户信号扩展或填充的方法和装置。 在各个方面中，确定将多个数据位发送到多个无线通信设备中的每一个所需的多个符号以及多个数据位中的每一个的最终符号中的有用位的一部分。 信令扩展长度还可以至少部分地基于有用比特的分数和多个无线通信设备中的每一个的调制和编码方案（MCS）来确定。 生成用于多个无线通信设备中的每一个的多个数据分组，每个数据分组在多个数据分组中的每一个的最终符号之后包括对应的数据比特和信令扩展。

公开(公告)号：US09521559B2

公开(公告)日：2016-12-13

申请号：US14873117

申请日：2015-10-01

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Simone Merlin ,  Eugene Jong-Hyon Baik ,  Bin Tian ,  Tevfik Yucek

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/04 ,  H04L27/00 ,  H04L27/26

CPC classification number: H04W16/14 ,  H04L27/0006 ,  H04L27/2601 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0816

Abstract: Methods and systems disclosed provide for clear channel assessment of first and second communication channels. In one aspect, a first primary channel has a first frequency spectrum bandwidth and a second primary channel has a second frequency spectrum bandwidth including the first frequency spectrum bandwidth. A method may include performing a first back-off procedure based on whether the first primary channel is idle if a transmission bandwidth for a wireless message is the first frequency spectrum bandwidth, performing a second back-off procedure based on whether the second primary channel is idle if the transmission bandwidth for the wireless message is greater than the first frequency spectrum bandwidth, and transmitting the wireless message based on a completion of the performed back off procedure.

Abstract translation: 所公开的方法和系统提供对第一和第二通信信道的清晰信道评估。 一方面，第一主信道具有第一频谱带宽，而第二主信道具有包括第一频谱带宽的第二频谱带宽。 方法可以包括：如果无线消息的传输带宽是第一频谱带宽，则基于第一主信道是否空闲来执行第一退避过程，基于第二主信道是否是第二主信道是否执行第二退避过程 如果无线消息的传输带宽大于第一频谱带宽，则基于所执行的退避过程的完成来发送无线消息。

公开(公告)号：US09497764B2

公开(公告)日：2016-11-15

申请号：US14330599

申请日：2014-07-14

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Didier Johannes Richard Van Nee ,  Bin Tian

IPC: H04W4/00 ,  H04W72/04 ,  H04W84/18 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04L25/03

CPC classification number: H04W72/0466 ,  H04L1/0041 ,  H04L1/007 ,  H04L1/0075 ,  H04L1/1812 ,  H04L5/0053 ,  H04L25/03866 ,  H04W84/18

Abstract: Systems, methods, and devices for communicating in a wireless network are provided. In one aspect, a method for wireless communication is provided. The method includes inserting a plurality of scrambler seeds into a data unit comprising a plurality of data portions, each scrambler seed associated with a respective data portion of the plurality of data portions. The method includes scrambling each data portion at least in part based on the associated scrambler seed. The method includes transmitting the data unit. The data portions may comprise code words or at least one media access control protocol data unit. The scrambler seed may be inserted in reserved bits of the delimiter field. The scrambler seed may be inserted in a delimiter signature field of the delimiter field.

Abstract translation: 提供了用于在无线网络中进行通信的系统，方法和设备。 一方面，提供一种无线通信方法。 该方法包括将多个加扰器种子插入到包括多个数据部分的数据单元中，每个扰频器种子与多个数据部分的相应数据部分相关联。 该方法包括至少部分地基于相关的扰频器种子对每个数据部分进行加扰。 该方法包括发送数据单元。 数据部分可以包括码字或至少一个媒体访问控制协议数据单元。 加扰器种子可以插入分隔符字段的保留位。 加扰器种子可以被插入到定界符字段的分隔符签名字段中。

公开(公告)号：US20160262051A1

公开(公告)日：2016-09-08

申请号：US15052827

申请日：2016-02-24

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Yuohan Kim ,  Bin Tian ,  George Cherian ,  Alfred Asterjadhi ,  Sameer Vermani

IPC: H04W28/06 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W28/06 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0643 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0057 ,  H04W72/0413

Abstract: Methods and apparatus for channel state information feedback are provided. In various aspects, a message is transmitted requesting channel feedback information. In some aspects, a first portion of the message is transmitted according to a first or second, and contains first information intended for a first or second set of wireless communication devices compatible with the first or second format respectively. In some aspects, a second portion of the first message is transmitted according to the second format, and contains second information intended for the second set of wireless communication devices compatible with the second format. In some aspects, the second message comprises a number of tones or spatial streams for which channel feedback information is requested, or other channel feedback information parameters.

Abstract translation: 提供了信道状态信息反馈的方法和装置。 在各个方面，发送请求信道反馈信息的消息。 在一些方面，消息的第一部分根据第一或第二传输，并且包含分别用于与第一或第二格式兼容的第一或第二组无线通信设备的第一信息。 在一些方面，根据第二格式发送第一消息的第二部分，并且包含旨在用于与第二格式兼容的第二组无线通信装置的第二信息。 在一些方面，第二消息包括要求信道反馈信息或其他信道反馈信息参数的多个音调或空间流。