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51. 发明授权

US10104546B2 Systems and methods for authentication 有权
公开(公告)号：US10104546B2
公开(公告)日：2018-10-16
申请号：US15492911
申请日：2017-04-20
申请人： Huawei Technologies Co., Ltd.
发明人： Sheng Sun , Kwok Shum Au , Yunbo Li , Phillip Barber
IPC分类号： G06F21/00 , H04W12/06 , H04L29/06 , H04W12/04 , H04W84/12
摘要： A method includes transmitting, by a station to an access point (AP), a fast initial link setup (FILS) authentication request and transmitting, by the station to the AP, an authorization request, where the authorization request includes an extensible authentication protocol (EAP) over local area network (LAN) (EAPOL) key. The method also includes receiving, by the station from the AP, an association response, where the association response includes the EAPOL key.

52. 发明申请

US20180234217A1 System and Method for Orthogonal Frequency Division Multiple Access Communications 审中-公开
公开(公告)号：US20180234217A1
公开(公告)日：2018-08-16
申请号：US15952010
申请日：2018-04-12
申请人： Huawei Technologies Co., Ltd.
发明人： Osama Aboul-Magd , Jung Hoon Suh , Kwok Shum Au , Sheng Sun
IPC分类号： H04L5/00 , H04W72/12 , H04W72/02 , H04W72/04 , H04W84/12
CPC分类号： H04L5/005 , H04L5/0007 , H04L5/0037 , H04L5/0091 , H04W72/02 , H04W72/0446 , H04W72/121 , H04W84/12
摘要： A method for operating a communications device adapted for orthogonal frequency division multiple access (OFDMA) wireless local area network (WLAN) communications includes generating an OFDMA preamble comprising an OFDMA signal (SIG) field including an indication of an allocation of an OFDMA resource to a station, and transmitting the OFDMA preamble in a frame.

53. 发明授权

US09980290B2 System and method for adaptive back-off time determination 有权
公开(公告)号：US09980290B2
公开(公告)日：2018-05-22
申请号：US14988485
申请日：2016-01-05
申请人： Huawei Technologies Co., Ltd.
发明人： Meilu Lin , Jun Zhu , Sheng Sun , Yan Xin
IPC分类号： H04W74/08
CPC分类号： H04W74/0816
摘要： In accordance with an embodiment a method for performing carrier sense multiple access with collision avoidance (CSMA-CA) by a station in a wireless communications network includes determining, in accordance with transmission information related to previous transmission attempts, a rate of success for each window section of a plurality of window sections, selecting a window section in accordance with at least the rate of success for each of the window sections and at least one predetermined threshold, and transmitting data after a back-off delay selected from within the selected window section.

54. 发明授权

US09843962B2 Dual-stream signal (SIG) field encoding with higher order modulation 有权
公开(公告)号：US09843962B2
公开(公告)日：2017-12-12
申请号：US14677356
申请日：2015-04-02
申请人： Huawei Technologies Co., Ltd.
发明人： Jung Hoon Suh , Kwok Shum Au , Osama Aboul-Magd , Sheng Sun
IPC分类号： H04W28/06 , H04L27/26 , H04L1/06 , H04L5/00 , H04L27/20 , H04W84/12
CPC分类号： H04W28/065 , H04L1/0643 , H04L5/0023 , H04L27/20 , H04L27/2602 , H04L27/2613 , H04W84/12
摘要： Signal (SIF) field capacity can be significantly increased by encoding SIG field data using two streams in accordance with a space-time block code (STBC) encoding scheme. Dual-stream SIG field encoding allows for the utilization of higher order modulation schemes, such as quadrature phase-shift keying (QPSK), which increases SIG field capacity. Dual-stream encoded SIG fields are transmitted using an omnidirectional beam to allow mobile stations to accurately decode the SIG field irrespective of their spatial location.

55. 发明申请

US20170134235A1 Systems and Methods to Reduce the Peak-to-Average Power Ratio (PAPR) of Signals in Channel Bonding 审中-公开
公开(公告)号：US20170134235A1
公开(公告)日：2017-05-11
申请号：US15140697
申请日：2016-04-28
申请人： Huawei Technologies Co., Ltd.
发明人： Tao Wu , Yan Xin , Min Yan , Sheng Sun
IPC分类号： H04L12/24 , H04L27/26 , H04L25/02 , H04L5/00
CPC分类号： H04L27/2621 , H04L5/001 , H04L5/003 , H04L5/0053 , H04L25/0226 , H04L27/2613
摘要： It is possible to reduce the PAPR of an amplified signal communicated over bonded channels by applying different phase shifts to control fields communicated over the bonded channels. The phase shifts reduce the amount of constructive interaction between the control fields by shifting the peaks of the respective signals in the time domain. The control fields may include short training fields (STFs), channel estimation (CE) fields, or header fields communicated over bonded channels.

56. 发明授权

US09622265B2 System and method for a CSMA-CA half window scheme 有权
公开(公告)号：US09622265B2
公开(公告)日：2017-04-11
申请号：US14309521
申请日：2014-06-19
申请人： Huawei Technologies Co., Ltd.
发明人： Sheng Sun , Jung Hoon Suh
IPC分类号： H04W74/08 , H04W84/12
CPC分类号： H04W74/0816 , H04W84/12
摘要： Embodiments are provided for implementing a CSMA-CA half window scheme in 802.11 networks or other suitable wireless networks that could benefit from such scheme. The half window scheme improves a back-off time calculation by adding a probability prediction factor. The back-off time is part of a delay time in accessing a wireless transmission medium by a station (STA). The probability prediction factor is used to adjust a contention widow (CW) used to calculate the back-off time, based on the STA's medium access probability. The STA splits the CW into two at least half windows and then chooses one of the windows according to the window's information gain for the probability prediction. The selected window is used to select a random number for the back-off time. The improved back-off time calculation reduces contention between STAs in accessing the medium.

57. 发明授权

US09264900B2 Fast authentication for inter-domain handovers 有权
标题翻译：域间切换的快速身份验证
公开(公告)号：US09264900B2
公开(公告)日：2016-02-16
申请号：US14218567
申请日：2014-03-18
申请人： Huawei Technologies Co., Ltd.
发明人： Sheng Sun , Osama Aboul-Magd , Kwok Shum (Edward) Au , Junghoon Suh , Alex Stephenne
IPC分类号： H04M1/66 , H04W12/06 , H04W36/00 , H04W12/04
CPC分类号： H04W12/06 , H04L9/0844 , H04L2209/42 , H04L2209/80 , H04W12/04 , H04W36/0038 , H04W36/14
摘要： Fast mobile device authentication can be achieved during inter-domain handovers between administrative domains operating under a federated service agreement using pseudonym identifications (PID). Specifically, the mobile device may derive a PID when obtaining authentication in a first wireless network, and then use the PID to obtain fast authentication in a second wireless network. The PID may be generated during an Elliptic curve Diffie-Hellman (ECDH) authentication procedure using public keys associated with the mobile device and the first wireless network. The PID (or a derivative thereof) may then be provided to an authentication server in a second wireless network for validation. The PID may be validated by the second authentication server via online or offline validation procedures. The PID can also be used as an electronic coupon for accessing the second network.
摘要翻译：在使用假名识别（PID）的联合服务协议下运行的管理域之间的域间切换期间，可以实现快速移动设备认证。具体地，当在第一无线网络中获得认证时，移动设备可以导出PID，然后使用PID在第二无线网络中获得快速认证。可以在使用与移动设备和第一无线网络相关联的公钥的椭圆曲线Diffie-Hellman（ECDH）认证过程期间生成PID。然后可以将PID（或其导数）提供给第二无线网络中的认证服务器以进行验证。 PID可以由第二认证服务器通过在线或离线验证过程来验证。 PID也可以用作访问第二个网络的电子优惠券。

58. 发明申请

US20150215818A1 Dual-Stream Signal (SIG) Field Encoding with Higher Order Modulation 有权
标题翻译：双流信号（SIG）字段编码与高阶调制
公开(公告)号：US20150215818A1
公开(公告)日：2015-07-30
申请号：US14677356
申请日：2015-04-02
申请人： Huawei Technologies Co., Ltd.
发明人： Jung Hoon Suh , Kwok Shum Au , Osama Aboul-Magd , Sheng Sun
IPC分类号： H04W28/06 , H04L5/00 , H04L27/20 , H04L1/06
CPC分类号： H04W28/065 , H04L1/0643 , H04L5/0023 , H04L27/20 , H04L27/2602 , H04L27/2613 , H04W84/12
摘要： Signal (SIF) field capacity can be significantly increased by encoding SIG field data using two streams in accordance with a space-time block code (STBC) encoding scheme. Dual-stream SIG field encoding allows for the utilization of higher order modulation schemes, such as quadrature phase-shift keying (QPSK), which increases SIG field capacity. Dual-stream encoded SIG fields are transmitted using an omnidirectional beam to allow mobile stations to accurately decode the SIG field irrespective of their spatial location.
摘要翻译：根据空时块码（STBC）编码方案，通过使用两个流编码SIG场数据可以显着增加信号（SIF）场容量。双流SIG字段编码允许利用诸如正交相移键控（QPSK）的更高阶调制方案，这增加了SIG场容量。双流编码的SIG字段使用全向光束传输，以允许移动台准确地解码SIG字段，而不考虑它们的空间位置。

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