公开(公告)号：US11012202B2

公开(公告)日：2021-05-18

申请号：US16731893

申请日：2019-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Osama Aboul-Magd ,  Jung Hoon Suh ,  Kwok Shum Au

IPC: H04L5/00 ,  H04W74/08 ,  H04L5/14 ,  H04W72/04 ,  H04W84/12 ,  H04L27/26

Abstract: Embodiments are provided for WLAN Orthogonal Frequency Division Multiple Access (OFDMA) design of subcarrier groups and corresponding frame format. An embodiment method includes grouping a plurality of subcarriers for OFDMA transmissions into a plurality of subcarrier groups in accordance with a pre-defined grouping structure for subcarriers. The method further includes allocating the subcarrier groups to a plurality of corresponding users, and signaling, to the users, a map of the subcarrier groups to the corresponding users. According to the pre-defined grouping structure, each one of the subcarrier groups includes a plurality of consecutive subcarriers, a plurality of non-consecutive subcarriers, or a combination of consecutive and non-consecutive subcarriers according to a deterministic structure. The map is signaled using an OFDMA PPDU comprising a legacy preamble portion configured to silence legacy users that do not use OFDMA communications, an OFDMA preamble portion indicating the map, and a data portion.

公开(公告)号：US10904753B2

公开(公告)日：2021-01-26

申请号：US16159235

申请日：2018-10-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Sun ,  Kwok Shum Au ,  Yunbo Li ,  Phillip Barber

IPC: H04L29/06 ,  H04W12/06 ,  G06F21/44 ,  H04W12/08 ,  H04W12/04 ,  H04W84/12

Abstract: An embodiment method includes receiving, by an access point (AP), a first authentication request from a station (STA) that requests authentication of the STA, transmitting, by the AP, a second authentication request to a server that requests including extensible authentication protocol (EAP) authentication signaling to verify mutual possession of a shared key between the STA and the server, and receiving, by the AP, a first authentication response from the server in response to the second authentication request. The first authentication response includes an indication that authentication of the STA was successful. The method further includes transmitting, by the AP, a second authentication response to the STA, and receiving, by the AP, an association request that includes a message integrity code (MIC) from the STA.

公开(公告)号：US10856210B2

公开(公告)日：2020-12-01

申请号：US16503815

申请日：2019-07-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kwok Shum Au ,  Ming Gan ,  Xun Yang ,  Osama Aboul-Magd

IPC: H04W48/08 ,  H04W48/20 ,  H04W72/04 ,  H04L5/00 ,  H04W74/00 ,  H04B7/0452 ,  H04W84/12 ,  H04W48/16

Abstract: A method and system for providing utilization information for a basic service set (BSS) in a wireless local area network system, performed by an access point, including generating and transmitting a BSS load element including a capable STA count field, a plurality of frequency and/or spatial stream underutilization fields, and a plurality of delta observable secondary channel utilization fields. The capable STA count field indicates a total number of STAs currently associated with the BSS. Each of the frequency and/or spatial stream underutilization fields indicates underutilized frequency and/or spatial stream domain resources on Orthogonal Frequency Division Multiple Access resource units for each channel, and each of the frequency and/or spatial stream underutilization fields is calculated based on RU size. Each of the delta observable secondary channel utilization fields indicates a utilization for a subband within a secondary channel calculated based on observable utilization on the corresponding secondary channel.

公开(公告)号：US20200220644A1

公开(公告)日：2020-07-09

申请号：US16241254

申请日：2019-01-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Osama Aboul-Magd ,  Jung Hoon Suh ,  Kwok Shum Au

IPC: H04L1/00 ,  H04L27/34 ,  H04W80/02 ,  H04B17/336

Abstract: In some examples, a wireless device includes a network interface to communicate over a wireless network, at least one processor configured to send a capabilities information element comprising an indicator to indicate support by the first wireless device for semi-orthogonal multiple access (SOMA) communications over the wireless network.

公开(公告)号：US20190387525A1

公开(公告)日：2019-12-19

申请号：US16554065

申请日：2019-08-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Osama Aboul-Magd ,  Kwok Shum Au ,  Jung Hoon Suh

IPC: H04W72/04 ,  H04W56/00 ,  H04L5/00

Abstract: Embodiments are provided for implementing a control function in a Wireless Local Area Network (WLAN) for allocation of resources to multiple stations (STAs) to enable Orthogonal Frequency Division Multiple Access (OFDMA) communications. An embodiment method includes determining a plurality of transmission resources for OFDMA communications of a plurality of STAs in the WLAN. The determination includes allocating a plurality of subcarriers to the STAs. The method further includes signaling the determined transmission resources to the STAs. The signaling of the transmission resources is piggybacked on at least one of data and management frames, such as in a sub-header of a MAC frame, or is an explicit signaling, such as in one or more dedicated fields of a traffic specification information element. The transmission resources for OFDMA communications allow simultaneous transmissions of the STAs in the WLAN.

公开(公告)号：US10440715B2

公开(公告)日：2019-10-08

申请号：US15938886

申请日：2018-03-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Osama Aboul-Magd ,  Kwok Shum Au ,  Jung Hoon Suh

IPC: H04W72/04 ,  H04W56/00 ,  H04L5/00 ,  H04W84/12

Abstract: Embodiments are provided for implementing a control function in a Wireless Local Area Network (WLAN) for allocation of resources to multiple stations (STAs) to enable Orthogonal Frequency Division Multiple Access (OFDMA) communications. An embodiment method includes determining a plurality of transmission resources for OFDMA communications of a plurality of STAs in the WLAN. The determination includes allocating a plurality of subcarriers to the STAs. The method further includes signaling the determined transmission resources to the STAs. The signaling of the transmission resources is piggybacked on at least one of data and management frames, such as in a sub-header of a MAC frame, or is an explicit signaling, such as in one or more dedicated fields of a traffic specification information element. The transmission resources for OFDMA communications allow simultaneous transmissions of the STAs in the WLAN.

公开(公告)号：US10404344B2

公开(公告)日：2019-09-03

申请号：US16113638

申请日：2018-08-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sheng Sun ,  Yan Xin ,  Kwok Shum Au ,  Osama Aboul-Magd

IPC: H04B7/00 ,  H04B7/06 ,  H04W76/10 ,  H04B7/08 ,  H04W88/02 ,  H04W88/08

Abstract: The AP can generate a distinctive 8 bit value, and fill the 8 most significant bits (MSBs) of the a 16 bit AID field to form a EDMG BSS AID. Beamforming can include a station performing a sector level sweep (SLS) process including transmitting, in sequence, a plurality of short sector sweep (SSW) frames to the other station using corresponding ones of the antenna sectors, and receiving, in sequence, a plurality of the short SSW frames from the other station, the short SSW frames having an addressing field format specifying a receiver address association ID (RA AID) and a transmitter address association ID (TA AID). The distinctive 8 bit value can be used as the AP AID.

公开(公告)号：US20190090153A1

公开(公告)日：2019-03-21

申请号：US16195246

申请日：2018-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Osama Aboul-Magd ,  Kwok Shum Au ,  Jung Hoon Suh

IPC: H04W28/02 ,  H04L5/00

Abstract: Embodiments are provided herein for improving carrier aggregation for wireless networks. A plurality of bandwidth channels are assigned to a basic service set (BSS) for transmissions. Specifically, the bandwidth channels are divided into multiple channel segments corresponding to multiple primary or alternate primary channels. A channel segment possibly further includes one or more additional secondary channels. The locations of the primary or alternate primary channels that correspond to the channel segments of the BSS are then broadcasted in the network. When a station or AP receives this BSS information, it searches for an available primary or alternate primary channel of the BSS to begin transmission. Upon detecting an available primary channel or alternate primary channel that is not used for another transmission, the station or AP transmits data on the channel segment corresponding to the detected primary or alternate primary channel.

公开(公告)号：US20180376406A1

公开(公告)日：2018-12-27

申请号：US15910963

申请日：2018-03-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kwok Shum Au ,  Ming Gan ,  Xun Yang ,  Osama Aboul-Magd

IPC: H04W48/08 ,  H04W48/20 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W48/08 ,  H04B7/0452 ,  H04L5/0007 ,  H04L5/0091 ,  H04W48/16 ,  H04W48/20 ,  H04W72/042 ,  H04W74/006 ,  H04W84/12

Abstract: A method and system for providing utilization information for a basic service set (BSS) in a wireless local area network system, performed by an access point, including generating and transmitting a BSS load element including a capable STA count field, a plurality of frequency and/or spatial stream underutilization fields, and a plurality of delta observable secondary channel utilization fields. The capable STA count field indicates a total number of STAs currently associated with the BSS. Each of the frequency and/or spatial stream underutilization fields indicates underutilized frequency and/or spatial stream domain resources on Orthogonal Frequency Division Multiple Access resource units for each channel, and each of the frequency and/or spatial stream underutilization fields is calculated based on RU size. Each of the delta observable secondary channel utilization fields indicates a utilization for a subband within a secondary channel calculated based on observable utilization on the corresponding secondary channel.

公开(公告)号：US10104546B2

公开(公告)日：2018-10-16

申请号：US15492911

申请日：2017-04-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Sun ,  Kwok Shum Au ,  Yunbo Li ,  Phillip Barber

IPC: G06F21/00 ,  H04W12/06 ,  H04L29/06 ,  H04W12/04 ,  H04W84/12

Abstract: 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.