公开(公告)号：US20240298312A1

公开(公告)日：2024-09-05

申请号：US18435638

申请日：2024-02-07

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

Inventor： Qing Xia

IPC: H04W72/12 ,  H04W72/541 ,  H04W72/566 ,  H04W74/0816 ,  H04W84/12

CPC classification number: H04W72/12 ,  H04W72/541 ,  H04W72/569 ,  H04W74/0816 ,  H04W84/12

Abstract: Wireless protocol enhancements are provided for allowing inter-BSS stations/APs to support, negotiate and participate in cooperative R-TWT SPs that are overlapped in time and are scheduled on different links or different channels to avoid the inter-BSS interference of prioritized traffic that has been scheduled to transmitted during the corresponding R-TWT SPs. The protocol makes use of new subfield elements toward informing, negotiating and supporting the cooperative R-TWT SPs.

公开(公告)号：US20240007852A1

公开(公告)日：2024-01-04

申请号：US18322797

申请日：2023-05-24

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W12/037 ,  H04W74/08 ,  H04W56/00 ,  H04W12/122 ,  H04W12/08 ,  H04L9/08

CPC classification number: H04W12/037 ,  H04W74/0816 ,  H04W56/001 ,  H04W12/122 ,  H04W12/08 ,  H04L9/0869 ,  H04W84/12

Abstract: Using this described protocol an AP can control multiple STAs to allow them to utilize the same scrambling seed to scramble the data in identical data units being sent on the wireless network. The AP sends a scrambling seed indication within a frame communicated to other STAs on the network. These other STAs, then use this scrambling seed indication to scramble a data field of a data unit with an identical scrambling seed, and to transmit these packets using the same modulation and coding scheme (MCS).

公开(公告)号：US20230319620A1

公开(公告)日：2023-10-05

申请号：US18179041

申请日：2023-03-06

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W28/02 ,  H04W74/08

CPC classification number: H04W28/0263 ,  H04W74/0816 ,  H04W84/12

Abstract: Enhanced TID-to-UP mapping is performed which allows multiple TIDs to be mapped to the UPs of the same AC. Thus, a first STA can set TID-to-UP mapping for a second STA, whereby TID-to-UP mapping can differentiate the MSDUs or A-MSDUs that are transmitted. In addition, an MSDU / A-MSDU can be classified by TID first, then use TID-to-UP mapping to map it to the corresponding UP. In addition, an SCS traffic stream can assign a TID and a UP to that SCS traffic stream. The use of these enhanced mechanism can enhance low latency performance.

公开(公告)号：US20230156687A1

公开(公告)日：2023-05-18

申请号：US18052664

申请日：2022-11-04

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W72/12 ,  H04W74/08

CPC classification number: H04W72/121 ,  H04W74/0816

Abstract: A non-AP STA, which is a scheduled STA having membership in an R-TWT scheduled STA, having an enqueued urgent burst of RTA traffic for the AP during an ongoing R-TWT SP of which it does not have R-TWT membership, is enabled to initiate R-TWT negotiation with the scheduling AP inside the ongoing R-TWT SP to either request a temporary or a long-term membership of the current ongoing R-TWT SP or request to setup a new temporary or long-term R-TWT SP after the current SP, but before the SP it originally had membership in, or to contend for an RA-RU in the current R-TWT SP if UORA feature is enabled. Thus, a non-R-TWT member STA is granted access for its burst traffic transmissions.

公开(公告)号：US20230058871A1

公开(公告)日：2023-02-23

申请号：US17814166

申请日：2022-07-21

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W52/02 ,  H04W74/08 ,  H04W72/12

Abstract: An IEEE 802.11 protocol in which the necessity and issues surrounding separately setting up SCS and reserving target wait time (R-TWT) are eliminated. In the present disclosure new data structures and processes are performed in which a station (STA) can request scheduling R-TWT for the traffic transmission of a stream classification service (SCS) during the setup procedure of that SCS. In using the teachings of the present disclosure, a STA can exchange a TWT setup frame on one link to schedule R-TWT on multiple links.

公开(公告)号：US20220386372A1

公开(公告)日：2022-12-01

申请号：US17679798

申请日：2022-02-24

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W74/08 ,  H04W72/04 ,  H04W48/16 ,  H04L5/00

Abstract: A wireless protocol performing Restricted Target Wait Time (R-TWT) signaling and its parameters to reduce latency, such as for real-time application traffic. Further control of traffic flow is provided during the R-TWT Service Period (SP), including whether: R-TWT SP can be extended, multiple overlapped R-TWT SPs on different links can be started, spatial reuse is required during R-TWT SP, allowance of transmission outside R-TWT SP, or use of Quiet element to protect R-TWT SP, whereby R-TWT operation (mode) is described with enhanced operations. Protocol is applicable to Wireless Local Area Networks (WLANs), and is especially well suited for 802.11be 802.11ax, Real-Time Application (RTA) traffic such as on time sensitive networks, Wi-Fi and on Multi-Link Devices (MLDs).

公开(公告)号：US20210410149A1

公开(公告)日：2021-12-30

申请号：US17141840

申请日：2021-01-05

Applicant: SONY CORPORATION

Inventor： Qing Xia ,  Mohamed Abouelseoud ,  Liangxiao Xin

IPC: H04W72/08 ,  H04W74/00 ,  H04W72/12 ,  H04W72/00 ,  H04W72/04

Abstract: A wireless local area network (WLAN) protocol allowing a Transmit Opportunity (TXOP) holder to share the TXOP with other stations acting cooperatively. An intent to share the TXOP is communicated to other stations that a TXOP is available for sharing, and notifying the Access Point (AP) station of the stations willing to join that TXOP. When the TXOP occurs, the stations can access the channel over different frequency domain simultaneously and for the duration specified, thus providing increased use of the TXOP to improve efficiency.

公开(公告)号：US12273920B2

公开(公告)日：2025-04-08

申请号：US17819285

申请日：2022-08-11

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W74/0816 ,  H04W74/08 ,  H04W84/12

Abstract: A preamble-based collision detection mechanism for use in wireless local area networks (WLANS), having one or more full-duplex (FD) stations. In addition, a new collision resolution estimation and scheduling mechanism is described for prioritized communication. These techniques can allow for more rapid collision detection and resolution, without the need of performing self-interference (SI) estimation. The techniques includes use of orthogonal preambles, in the time domain and/or frequency domain, into which FD stations embed priority information.

公开(公告)号：US20240080891A1

公开(公告)日：2024-03-07

申请号：US18234951

申请日：2023-08-17

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W74/08 ,  H04W24/10 ,  H04W28/02 ,  H04W72/566

CPC classification number: H04W74/0816 ,  H04W24/10 ,  H04W28/0278 ,  H04W72/569 ,  H04W88/06

Abstract: Protocol enhancements for IEEE 802.11 handling of Buffer Status Reports (BSRs) to provide real-time information on Quality of Service (QoS) requirements. A non-AP STA can report QoS status about portions of a buffer, which then allows the AP to schedule transmissions for those buffers toward satisfying their QoS requirements. The non-AP STA can also change parameters of the QoS characteristics element of an existing SCS to allow the AP to schedule transmission for the SCS traffic with the new parameters immediately. The non-AP STA can also report on buffers that should soon arrive to allow the AP to trigger the transmission before those buffers arrive. Additional benefits are also provided.

公开(公告)号：US20230403741A1

公开(公告)日：2023-12-14

申请号：US18198071

申请日：2023-05-16

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W74/08

CPC classification number: H04W74/0816 ,  H04W88/085

Abstract: An enhanced protocol for addressing communication issues arising from using a Remote Radio Head (RRH). An Access Point (AP), denoted as Remote Radio Head (RRH) AP, consists of a Central Unit (CU) and at least one RRH that can be located remotely. The functionalities of the Medium Access Control (MAC) and the Physical (PHY) layers of the RRH AP are split between the CU and RRH; with the CU exchanging frames between the MAC layers, and the RRH transmitting and receiving the physical signals through the channel.