公开(公告)号：US20230117842A1

公开(公告)日：2023-04-20

申请号：US17936755

申请日：2022-09-29

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W28/02

Abstract: A buffer status reporting mechanism, such as within a buffer status request poll (BSRP), in which the Access Point (AP) communicates the specific type of information that the non-AP station (STA) is to communicate back, such as within a buffer status report (BSR), about the buffers. The AP specified requirements for the BSR being characteristics of: access categories (ACs), traffic identifiers (TIDs), traffic streams, traffic directions, and/or types of traffic and quality of service (QoS) requirements which allow the AP to properly arrange transmissions to satisfy QoS requirements.

公开(公告)号：US20230081745A1

公开(公告)日：2023-03-16

申请号：US17820454

申请日：2022-08-17

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W74/08

Abstract: A wireless local area network (WLAN) having stations (STAs) using Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) in which at least some stations support Full Duplex (FD) transmission. Mechanisms are described in which a STA can send a preemption request to a station performing ongoing transmissions. The preempted STA detects a preemption request of this preempting STA. The preempted STA interrupts its ongoing transmission; if it has determined to accept the preemption request. Thus, the preempting STA preempts the transmission of the preempted STA, to send a preemptive transmission, after receiving notification that the preempted STA has interrupted its ongoing transmission.

公开(公告)号：US20230047705A1

公开(公告)日：2023-02-16

申请号：US17844555

申请日：2022-06-20

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W52/02 ,  H04W74/08 ,  H04W74/04

Abstract: A wireless communication protocol using CSMA/CA, EDCA and R-TWT to prioritize RTA traffic transmissions. During an R-TWT SP, the RTA traffic is prioritized for transmission and mechanisms are provided for assuring proper indications and termination of the R-TWT SP. During this process, member STAs communicate with the R-TWT scheduling AP when they have no more frames to send. The R-TWT scheduling AP can also terminate the R-TWT SP before its scheduled end time, allowing non-member STAs to immediately contend for the channel. In addition, the R-TWT scheduling AP can exchange frames with STAs, that have an R-TWT feature but are not R-TWT member STAs, after frame exchanges with the R-TWT member STAs during the R-TWT SP have been completed.

公开(公告)号：US20230029957A1

公开(公告)日：2023-02-02

申请号：US17847342

申请日：2022-06-23

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W74/08 ,  H04W72/04

Abstract: A wireless communications protocol in which multiple-link operations provide enhanced efficiency in particular for non-simultaneous transmit receive (NSTR) communications between stations (STAs) of multiple-link devices (MLDs). When MLD1 is the TXOP holder of Link1 and the channel is accessed on Link2 by MLD2 for transmitting to MLD1; MLD2 immediately transmits over Link2 to MLD1, if MLD1 is receiving on Link1. MLD2 transmits a frame over Link2 to occupy the channel if MLD1 is transmitting on Link1, then when MLD1 is receiving on Link1 then MLD2 transmits another frame to MLD1.

公开(公告)号：US20220400500A1

公开(公告)日：2022-12-15

申请号：US17737255

申请日：2022-05-05

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

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

IPC: H04W72/12 ,  H04W76/15 ,  H04W74/02

Abstract: A wireless communications protocol for enabling legacy (non-EHT) stations (STAs) to operate on the conditional link of the Soft AP MLD. Legacy devices can connect and setup link connections on the conditional link, and the scheduler is configured to allow legacy STAs to use the conditional link if there is no IDC interference issue at the soft AP MLD. This enhanced protocol utilizes either a cooperative HCCA schedule created for simultaneous transmission and reception over the basic link and conditional link, or an adaptive polling-based scheduling performed for the conditional link in response to the link status of the basic link.

公开(公告)号：US20220312506A1

公开(公告)日：2022-09-29

申请号：US17551034

申请日：2021-12-14

Applicant: SONY GROUP CORPORATION ,  SONY CORPORATION OF AMERICA

Inventor： Qing Xia ,  Mohamed Abouelseoud ,  Liangxiao Xin

IPC: H04W74/08 ,  H04W72/12 ,  H04L27/26 ,  H04B1/525

Abstract: Enhanced Multi-Link Operation (MLO) is performed in this protocol in which non-simultaneous transmit/receive (NSTR) Multi-Link Devices (MLDs) cooperate with each other in sharing a portion of their available Transmit Opportunity (TXOP) toward reducing contention and competition for channel access across the group of cooperating MLDs. The shared TXOP is performed at an MLD level after all links for an NSTR MLD are obtained by stations which do not need to be in part of the same NSTR MLD, thus synchronized transmissions and receptions are performed which eliminate in-device coexistence (IDC) interference in any single NSTR MLD. The time gap while awaiting for all links to be obtained, is also made use of for performing transmission(s) toward increasing data throughput.