公开(公告)号：US20230164709A1

公开(公告)日：2023-05-25

申请号：US17533092

申请日：2021-11-22

Applicant: QUALCOMM Incorporated

Inventor： Abdel Karim AJAMI ,  Sai Yiu Duncan HO ,  Alfred ASTERJADHI ,  George CHERIAN ,  Abhishek Pramod PATIL ,  Yanjun SUN ,  Gaurang NAIK

IPC: H04W56/00

CPC classification number: H04W56/001

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for coordinated scheduling of service periods (SPs). In some aspects, an access point (AP) may receive timing information indicating an SP associated with an overlapping basic service set (OBSS) and may transmit, to its associated STAs, coordinated timing information indicating the timing of the SP in relation to its timing synchronization function (TSF) timer. In some aspects, the AP may adjust the timing information to account for an offset between its TSF timer and a TSF timer associated with the OBSS. In some other aspects, the AP may synchronize its TSF timer with the TSF timer associated with the OBSS. The AP may further communicate with the STAs based on the coordinated timing information. For example, the AP may schedule communications with the STAs to be orthogonal to communications in the OBSS during the SP.

公开(公告)号：US20230156793A1

公开(公告)日：2023-05-18

申请号：US17525708

申请日：2021-11-12

Applicant: QUALCOMM Incorporated

Inventor： Abdel Karim AJAMI ,  Yanjun SUN ,  George CHERIAN ,  Sai Yiu Duncan HO ,  Alfred ASTERJADHI ,  Abhishek Pramod PATIL ,  Gaurang NAIK

IPC: H04W74/08 ,  H04W72/04 ,  H04W48/16 ,  H04W48/20

CPC classification number: H04W74/0816 ,  H04W72/0413 ,  H04W72/0446 ,  H04W48/16 ,  H04W48/20

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for signaling parameters for peer-to-peer communications in a wireless network. One aspect provides a method for wireless communications at an access point (AP). The method generally includes: obtaining, from an access point (AP), a transmission opportunity (TXOP) sharing trigger indicating a duration in which a TXOP is shared by the wireless station and one or more other devices; relaying, to the one or more other devices, information identifying parameters for wireless communications between the wireless station and the one or more other devices; and during the TXOP, communicating with the one or more other devices based on the parameters for wireless communications between the wireless station and the one or more other devices.

公开(公告)号：US20230155782A1

公开(公告)日：2023-05-18

申请号：US17455414

申请日：2021-11-17

Applicant: QUALCOMM Incorporated

Inventor： Yanjun SUN ,  Alfred ASTERJADHI ,  Abhishek Pramod PATIL ,  George CHERIAN ,  Sai Yiu Duncan HO ,  Gaurang NAIK ,  Abdel Karim AJAMI ,  Sandip HOMCHAUDHURI

IPC: H04L5/00 ,  H04W72/12

CPC classification number: H04L5/0053 ,  H04L5/0094 ,  H04W72/1289 ,  H04W72/1215

Abstract: This disclosure provides methods, devices and systems for transmitting and receiving, between an access point (AP) and one or more stations (STAs) in a basic service set (BSS), an indication of a puncturing event. In some examples, the transmitting and receiving may use non-legacy elements configured to provide information about the puncturing event. In certain aspects, the disclosure provides methods for transmitting and receiving, between the AP and one or more STAs, an indication of an operating band switch. In some examples, the transmitting and receiving may use non-legacy elements configured to provide information about the operating band switch.

公开(公告)号：US20230121644A1

公开(公告)日：2023-04-20

申请号：US18069153

申请日：2022-12-20

Applicant: QUALCOMM Incorporated

Inventor： Alfred ASTERJADHI ,  George CHERIAN ,  Abhishek Pramod PATIL ,  Bin TIAN

IPC: H04W52/02 ,  H04W74/08

Abstract: Certain aspects of the present disclosure provide an apparatus for wireless communications. The apparatus generally includes a processing system configured to generate a frame for triggering transmission of a plurality of data units from a plurality of wireless nodes, a first interface configured to output the frame for transmission to the plurality of wireless nodes, and a second interface configured to obtain the plurality of data units after outputting the frame for transmission, wherein the plurality of data units have different lengths.

公开(公告)号：US20230028494A1

公开(公告)日：2023-01-26

申请号：US17382218

申请日：2021-07-21

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod PATIL ,  George CHERIAN

IPC: H04W4/06 ,  H04L1/16 ,  H04W72/00 ,  H04W72/04

Abstract: This disclosure provides methods, devices and systems for reliable delivery of enhanced broadcast services (EBCS) downlink (DL) packets to wireless stations (STAs) that support EBCS (also referred to as “EBCS STAs”) and maintaining interoperability with STAs that do not support EBCS. A wireless communication device may broadcast one or more EBCS DL packets carrying data associated with an EBCS service. In some aspects, the wireless communication device may subsequently transmit a trigger frame soliciting information indicating which, if any, of the EBCS DL packets were missed by EBCS STAs in the vicinity. In some other aspects, each EBCS DL packet may carry signaling indicating that the broadcast data is intended only for EBCS STAs. Still further, in some aspects, the wireless communication device may broadcast an EBCS traffic advertisement indicating a timing of the one or more EBCS DL packets.

公开(公告)号：US20210378039A1

公开(公告)日：2021-12-02

申请号：US17330257

申请日：2021-05-25

Applicant: QUALCOMM Incorporated

Inventor： George CHERIAN ,  Sai Yiu Duncan HO ,  Abhishek Pramod PATIL ,  Alfred ASTERJADHI ,  Yanjun SUN

IPC: H04W76/15 ,  H04W74/08 ,  H04W8/24

Abstract: Disclosed are techniques for wireless communication. In an aspect, an access point (AP) communicates with at least one wireless station (STA) and supporting a plurality of communication devices and communication modes on a communication medium, establishes a single-link communication mode with the at least one wireless STA and at least one communication device of the plurality of communication devices over a single-link, establishes a multi-link communication mode with the at least one wireless STA and the at least one communication device over a multi-link, and dynamically transitions between the single-link communication mode and the multi-link communication mode based upon a determination related to a best mode of delivery for a next period.

公开(公告)号：US20210282186A1

公开(公告)日：2021-09-09

申请号：US17188723

申请日：2021-03-01

Applicant: QUALCOMM Incorporated

Inventor： George CHERIAN ,  Abhishek Pramod PATIL ,  Sai Yiu Duncan HO ,  Alfred ASTERJADHI ,  Yanjun SUN ,  Guido Robert FREDERIKS ,  Maarten Menzo WENTINK ,  Raja BANERJEA

IPC: H04W74/08 ,  H04W74/00

Abstract: This disclosure provides methods, devices and systems for transmitting and receiving physical protocol data units (PPDUs) over multiple links. In some aspects, a wireless communication device may determine that first random back off (RBO) for a first channel of a first link has counted down to zero. A wireless communication device may determine, when the first RBO has counted down to zero, that a second RBO for a second channel of a second link has a count down remaining. A wireless communication device may optionally transmit a medium reservation message on the first link reserving a transmission opportunity (TXOP). A wireless communication device may determine whether to wait for the second RBO before transmitting on the first link. A wireless communication device may transmit at least a first PPDU on the first link during the TXOP.

公开(公告)号：US20210282161A1

公开(公告)日：2021-09-09

申请号：US17249070

申请日：2021-02-18

Applicant: QUALCOMM Incorporated

Inventor： Yanjun SUN ,  George CHERIAN ,  Alfred ASTERJADHI ,  Sai Yiu Duncan HO ,  Abhishek Pramod PATIL

IPC: H04W72/12

Abstract: This disclosure provides methods, devices and systems for sharing resources of a wireless medium. Particular implementations relate more specifically to coordinated AP (CAP) time-division-multiple-access (TDMA) and orthogonal-frequency-division-multiple access (OFDMA) techniques for sharing the time or frequency resources of a transmission opportunity (TXOP). According to such techniques, an AP that wins contention and gains access to the wireless medium for the duration of a TXOP may share its time or frequency resources with other selected APs. To share its resources, the winning AP may partition the TXOP into multiple time or frequency segments each including respective time or frequency resources representing a portion of the TXOP, and allocate each of the time or frequency segments to itself or to one of the selected APs.

公开(公告)号：US20210282119A1

公开(公告)日：2021-09-09

申请号：US17166794

申请日：2021-02-03

Applicant: QUALCOMM Incorporated

Inventor： Alfred ASTERJADHI ,  George CHERIAN ,  Abhishek Pramod PATIL ,  Sai Yiu Duncan HO ,  Yanjun SUN

IPC: H04W72/04 ,  H04W76/40 ,  H04W76/15

Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication. An example wireless communication device broadcasts a first beacon frame over a first communication link of an access point (AP) multi-link device (MLD) (AP MLD), and broadcasts a second beacon frame over a second communication link of the AP MLD. The first beacon frame indicates transmission of group data over the first communication link, and the second beacon frame indicates transmission of the group data over the second communication link. The wireless communication device transmits the group data, concurrently over the first and second communication links, to one or more wireless stations (STAs). Another example wireless communication device obtains one or more beacon frames indicating buffered group data in an AP MLD for at least the wireless communication device, selects one or more group communication links, and obtains the group data over the one or more selected group communication links.

公开(公告)号：US20210212045A1

公开(公告)日：2021-07-08

申请号：US17143017

申请日：2021-01-06

Applicant: QUALCOMM Incorporated

Inventor： George CHERIAN ,  Abhishek Pramod PATIL ,  Sai Yiu Duncan HO ,  Alfred ASTERJADHI

IPC: H04W72/04

Abstract: One innovative aspect of the subject matter described in this disclosure may be implemented in a method for wireless communication. The method may be performed, for example, by a first entity of a multi-link device (MLD) to receive a first control frame transmitted on a first wireless link and set, in response to receiving the first control frame, a network allocation vector (NAV) for each link of multiple wireless links of the first MLD based on a duration field in the first control frame.