公开(公告)号：US20230262770A1

公开(公告)日：2023-08-17

申请号：US18165807

申请日：2023-02-07

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

Inventor： Liangxiao Xin ,  Li-Hsiang Sun ,  Mohamed Abouelseoud ,  Qing Xia

IPC: H04W74/08 ,  H04W72/1268

CPC classification number: H04W74/0816 ,  H04W72/1268 ,  H04W74/0833

Abstract: Wireless IEEE 802.11 communication mechanisms are described for a member STA of a R-TWT SP to gain TXOP channel access before the R-TWT SP, which does not need to end before the start time of the R-TWT SP. On trigger based R-TWT SP, the TXOP time is shared to overlap the R-TWT SP; allowing the AP to behave as the TXOP holder for the frame exchange of latency sensitive traffic during the R-TWT SP. Thus, the R-TWT scheduling AP and member STAs of a R-TWT SP can contend for the channel together before the scheduled start time of the R-TWT SP. When one of these STAs gains channel access, it can reserve a TXOP until the scheduled end time of the R-TWT SP, which may extend beyond the normal TXOP limit.

公开(公告)号：US20230199844A1

公开(公告)日：2023-06-22

申请号：US18064645

申请日：2022-12-12

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

Inventor： Qing Xia ,  Mohamed Abouelseoud ,  Li-Hsiang Sun ,  Liangxiao Xin

IPC: H04W74/08

CPC classification number: H04W74/0816

Abstract: A wireless IEEE 802.11 communication protocol under CSMA/CA for enhanced full duplex (FD) station (STA) operations. PPDU preambles are configured to incorporate STA identification and corresponding resource unit (RU) or multiple resource unit (MRU) information. An FD AP indicates STA identification and corresponding RU/MRU index of a transmission destination in the FD preamble of a downlink (DL) PPDU; while a FD non-AP STA indicates its own STA identification and corresponding RU/MRU index in the FD preamble of a uplink (UL) PPDU. The disclosed technology mitigates many issues in regard to fake collisions, partial RU fake collisions, and real collisions, toward improving communications and efficiency and reducing latencies.

公开(公告)号：US20230122711A1

公开(公告)日：2023-04-20

申请号：US17936725

申请日：2022-09-29

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

Inventor： Li-Hsiang Sun ,  Mohamed Abouelseoud ,  Liangxiao Xin ,  Qing Xia

IPC: H04W74/08

Abstract: Method and apparatus for supporting simultaneous MultiUser (MU) Multiple-Input Multiple-Output (MIMO) operations utilizing Orthogonal Frequency Division Multiple Access (OFDMA) with Uplink OFDMA Random Access (UORA). Access Points (APs) trigger and obtain short PPDUs from the stations to learn spatial filtering patterns that are utilized in adjusting antenna phase differences to obtain minimum/maximum energy from this BSR. The APs determine favored and unfavored directions of communication, which are conveyed to non-AP UORA stations as channel estimation signals. The UORA stations base broadcasting on strengths of channel estimation signals to determine eligible UORA resource units. The UORA procedure to secondary APs allows a primary AP to trigger a UL-MU MIMO transmission with the number of spatial streams exceeding the number of antennas at the primary AP.

公开(公告)号：US20220174732A1

公开(公告)日：2022-06-02

申请号：US17390979

申请日：2021-08-01

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

Inventor： Qing Xia ,  Mohamed Abouelseoud ,  Liangxiao Xin

IPC: H04W74/08 ,  H04W16/14

Abstract: A wireless local area network (WLAN) protocol allowing a Transmit Opportunity (TXOP) holder, whether its an AP or non-AP STA, to share the TXOP with other stations, that are either AP or non-AP STAs. An intent to share the TXOP is communicated by the TXOP holder either directly or indirectly with other STAs and/or AP, after which scheduling information (time and duration) are shared with the STAs and/or AP. When the TXOP occurs, the STAs and/or AP can access the channel at the time and for the duration specified, thus providing increased use of the TXOP to improve efficiency.

公开(公告)号：US10972895B2

公开(公告)日：2021-04-06

申请号：US16354998

申请日：2019-03-15

Applicant: SONY CORPORATION

Inventor： Mohamed Abouelseoud ,  Kazuyuki Sakoda

IPC: H04W8/00 ,  H04W16/28 ,  H04W4/70 ,  H04W48/16 ,  H04W72/04 ,  H04W8/24

Abstract: A wireless communication apparatus/system/method utilizing directional data transmission over a communication (e.g., mmW) band and propagating discovery assistance (DA) request and responses to neighboring stations (e.g., in its BSS or in the surrounding area) and performing cooperative discovery with other BSS to increasing network efficiency. Discovery assistance requests include a discovery assistance element and a DMG capability element of the first neighboring station, which is propagated to other stations in the BSS of AP/PCP station.

公开(公告)号：US10887752B2

公开(公告)日：2021-01-05

申请号：US16718610

申请日：2019-12-18

Applicant: SONY CORPORATION

Inventor： Ramy Medhat Abdallah ,  Mohamed Abouelseoud

IPC: H04W8/00 ,  H04B7/08 ,  H04B7/06 ,  H04W40/28 ,  H04L12/707 ,  H04W84/18

Abstract: Wireless mesh networking protocols for directional transmissions in the PHY layer over multiple hops between a mix of mesh and non-mesh stations (STAs). Joint beamforming (BF) training and mesh network discovery is described including adaptive signaling with the mesh network. The mesh networking protocol can be utilized in a mix of wireless nodes including portals, access points (APs), personal control points (PCPs), and mesh stations (STAs).

公开(公告)号：US20200374787A1

公开(公告)日：2020-11-26

申请号：US16897185

申请日：2020-06-09

Applicant: SONY CORPORATION

Inventor： Kazuyuki Sakoda ,  Ramy Abdallah ,  Mohamed Abouelseoud

IPC: H04W48/16 ,  H04W92/20 ,  H04L5/00 ,  H04W28/16 ,  H04W8/00 ,  H04B7/06

Abstract: An apparatus and method for adaptive network discovery signaling. Information is collected in a database of events, such as the discovery of a new station. The event information (e.g., new station, antenna sectors, active links) is shared with a central coordinator, or other stations in the network. Based on events, at this or other stations, signal transmission forms are adapted, for example for transmitting the beacon signals and notification signals. Adaptations of signal transmission include changing how frequently signaling is performed, timing of signaling, adjusting beam width, and/or adjusting directionality.

公开(公告)号：US10813041B2

公开(公告)日：2020-10-20

申请号：US16274878

申请日：2019-02-13

Applicant: SONY CORPORATION

Inventor： Mohamed Abouelseoud ,  Kazuyuki Sakoda

IPC: H04W48/16 ,  H04W48/10 ,  H04W16/28 ,  H04B7/06 ,  H04W72/04 ,  H04B7/0413 ,  H04W84/18

Abstract: A wireless communication apparatus/system/method utilizing directional data transmission over a communication (e.g., mmW) band and propagating discovery assistance request and responses to neighboring stations (e.g., in its BSS or in the surrounding area) toward increasing network efficiency. If these stations support discovery assistance they send a discovery assistance response to the station from which the request was propagated. The STA that sent the propagated discovery assistance request processes all the responses and sends a discovery assistance response, containing information about the discovery assistance campaign, to the STA that requested the discovery assistance request.

公开(公告)号：US20200077326A1

公开(公告)日：2020-03-05

申请号：US16675044

申请日：2019-11-05

Applicant: SONY CORPORATION

Inventor： Mohamed Abouelseoud ,  Ramy Abdallah ,  Kazuyuki Sakoda

IPC: H04W48/16 ,  H04W40/24 ,  H04W8/00

Abstract: Wireless mesh networking protocols are taught that provide neighbor node discovery in a network utilizing directional transmissions. The established mesh network is utilized to trigger stations in the mesh network to assist in neighbor discovery. The new node joining the network then does not need to wait for beacons from other mesh nodes in starting the process to join the mesh network. In this way the discovery of available nodes is accelerated. Numerous variations and scenarios of the apparatus and method are described.

公开(公告)号：US10433236B2

公开(公告)日：2019-10-01

申请号：US15819991

申请日：2017-11-21

Applicant: SONY CORPORATION

Inventor： Mohamed Abouelseoud ,  Ramy Abdallah ,  Kazuyuki Sakoda

IPC: H04W40/24 ,  H04W16/28 ,  H04W8/00 ,  H04W84/18 ,  H04B7/06 ,  H04W48/16 ,  H04W84/12 ,  H04L12/24

Abstract: Reduced signaling overhead is provided in an apparatus and method for communications within a mesh network. The communications involve using two different beacon signals. A peer beacon contains time synchronization and resource management information to maintain existing links among one or more neighboring peer stations, while a separate network discovery beacon contains mesh network profile information that identifies the mesh network to aid network discovery for wireless communication stations wanting to join the mesh network. Embodiments describe coordination between peer stations to determine which stations are to send the network discovery beacons, so that at any given period of time not all stations need to be transmitting the discovery beacons.