公开(公告)号：US20210006361A1

公开(公告)日：2021-01-07

申请号：US16917605

申请日：2020-06-30

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil ,  Lochan Verma ,  Jialing Li Chen ,  Stephen Jay Shellhammer ,  Dung Ngoc Doan ,  Bin Tian

IPC: H04L1/18 ,  H04L5/00 ,  H04L1/16 ,  H04W80/02

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for implementing a hybrid automatic repeat request (HARQ) protocol in a wireless local area network (WLAN). In some aspects, a first WLAN device may transmit a first HARQ frame to a second WLAN device. The first WLAN device may determine whether a first feedback message received from the second WLAN device includes HARQ acknowledgement information or non-HARQ acknowledgment information. The first feedback message may be a HARQ Block Acknowledgement (H-BA) message having a multi-station Block ACK (M-BA) frame format that includes HARQ acknowledgment information. The first WLAN device may transmit a second HARQ frame to the second WLAN device in response to determining the first feedback message includes the HARQ acknowledgment information. The first WLAN device may transmit a non-HARQ frame in response to determining the first feedback message includes non-HARQ acknowledgement information.

公开(公告)号：US10863431B2

公开(公告)日：2020-12-08

申请号：US14931752

申请日：2015-11-03

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Alireza Raissinia ,  George Cherian ,  Abhishek Pramod Patil

IPC: H04W52/02 ,  H04W56/00 ,  H04W72/04 ,  H04W48/12 ,  H04W84/12

Abstract: Methods, devices, and computer program products for synchronization of wireless devices in a peer-to-peer network are described herein. In one aspect, a method of wireless communication apparatus is provided. The method includes receiving, at an apparatus, at least one of: an offset parameter indicating an offset, with respect to a default time period, during which the apparatus should be in an active mode for transmitting and/or receiving data, and an interval parameter indicating a multiple of time periods, wherein the apparatus should be in the active mode for transmitting and/or receiving data during each time period. The method further includes determining at least one wakeup time period to be in the active mode based on the offset parameter or the interval parameter. The method further includes transmitting and/or receiving data during the at least one wakeup time period.

公开(公告)号：US10827359B2

公开(公告)日：2020-11-03

申请号：US16235302

申请日：2018-12-28

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  ALfred Asterjadhi ,  Abhishek Pramod Patil

IPC: H04W16/06 ,  H04W76/11 ,  H04W16/28 ,  H04W40/24 ,  H04W48/16 ,  H04W72/08 ,  H04W88/10 ,  H04W48/10 ,  H04W24/08 ,  H04W16/10 ,  H04W72/04

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for enabling a neighboring access point (AP) to reuse communication resources that are used by an existing spatial reuse group (SRG). In one aspect, an SR element including SR information can be generated. The SR information may indicate that a first group of STAs associated with a second AP may reuse resources of a wireless medium over which packets are transmitted by a second group of STAs associated with the first AP and may indicate a permitted OBSS threshold value for reuse of the resources over the first AP. In some implementations, a wireless apparatus may transmit the SR element that includes the SR information.

公开(公告)号：US10820314B2

公开(公告)日：2020-10-27

申请号：US14959979

申请日：2015-12-04

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Santosh Paul Abraham ,  Alireza Raissinia ,  George Cherian

IPC: H04W72/12 ,  H04W72/04 ,  H04W52/02 ,  H04L29/12 ,  H04W68/00 ,  H04W28/18

Abstract: A method of communication includes exchanging, at a first device, a negotiation message with a second device. The method also includes determining, at the first device, whether to send a traffic message during a neighbor aware network (NAN) data link (NDL) time block based on the negotiation message.

公开(公告)号：US10757638B2

公开(公告)日：2020-08-25

申请号：US16009145

申请日：2018-06-14

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil ,  Yan Zhou ,  Venkata Ramanan Venkatachalam Jayaraman

IPC: H04W48/08 ,  H04W48/16 ,  H04W16/14 ,  H04W48/10 ,  H04W8/00 ,  H04W48/12 ,  H04W48/20

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for advertising operating channels that are being operated in an unlicensed frequency band. One or more access points (APs) may transmit discovery information on a dedicated discovery channel for the unlicensed frequency band. The discovery information may indicate at least one operating channel that is being used by an AP for providing wireless access. The discovery information also may include other information useful for a station (STA) to discover APs, operating channels, and operating parameters. The STA may monitor the dedicated discovery channel to obtain the discovery information without conducting an active scanning or passive scanning procedure.

公开(公告)号：US20200260488A1

公开(公告)日：2020-08-13

申请号：US16790624

申请日：2020-02-13

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  Maarten Menzo Wentink ,  Abhishek Pramod Patil ,  Alfred Asterjadhi

IPC: H04W74/08 ,  H04W56/00

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for sharing a transmission opportunity (TXOP) of a wireless channel. A first wireless local area network (WLAN) device can win a contention-based procedure to become an owner of the TXOP and determine to use the TXOP as a multi-device transmission opportunity (mTXOP). Although the first WLAN device is the owner of the mTXOP, the first WLAN device may allocate resources from the mTXOP to share with other WLAN devices. During a first portion of the mTXOP, the first WLAN device allocate subordinate transmission opportunities (sub-TXOPs) for use by other WLAN devices during a second portion of the mTXOP. The allocation of sub-TXOPs may be prepared based on fairness considerations, latency considerations, or both. In some implementations, a sub-TXOP may be allocated for a non-WLAN device, such as a wireless wide area network (WWAN) apparatus.

公开(公告)号：US10716054B2

公开(公告)日：2020-07-14

申请号：US16141866

申请日：2018-09-25

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  Alfred Asterjadhi ,  Abhishek Pramod Patil

IPC: H04W48/16 ,  H04W40/24 ,  H04W48/08 ,  H04W48/14 ,  H04W48/18 ,  H04W84/12 ,  H04W48/12

Abstract: Methods and systems for accessing networks prohibit uncontrolled communications over a designated network. In some aspects, a method of controlling network access is disclosed. The method comprises transmitting, by a first access point, a first beacon over a first network to a station, the first beacon including information allowing the station to associate with the first access point. The method also comprises receiving a probe request at the first access point over the first network from the station, the probe request including a request for rules for associating with a second network. The method additional comprises generating a probe response to include the rules regarding associating with the second network, wherein the rules do not permit uncontrolled communications over the second network. The method further comprises transmitting the probe response from the first access point to the station over the first network.

公开(公告)号：US10660130B2

公开(公告)日：2020-05-19

申请号：US16029467

申请日：2018-07-06

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Maarten Menzo Wentink ,  Abhishek Pramod Patil

IPC: H04W74/08 ,  H04W74/04 ,  H04W72/04 ,  H04W84/12 ,  H04W84/18

Abstract: This disclosure provides systems, methods and apparatuses for coordinating access to a shared wireless medium among multiple master devices operating on the same frequency band. In some implementations, master devices may contend for access to the shared medium during a medium reservation window (MRW). During the MRW, master devices may advertise their intent to reserve at least a portion of the shared medium for one or more timeslots within a subsequent medium utilization period. The reservation messages may be broadcast to other master devices in the vicinity to prevent other master devices from accessing the wireless medium during a reserved timeslot. In some implementations, the owner of a timeslot may share at least a portion of its timeslot with other master devices. For example, the timeslot owner may enable other master devices to utilize an unused portion of the wireless medium, such as unused channels, spatial streams, or time.

公开(公告)号：US20200077273A1

公开(公告)日：2020-03-05

申请号：US16554058

申请日：2019-08-28

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  Alfred Asterjadhi ,  Abhishek Pramod Patil

IPC: H04W16/02 ,  H04W74/06 ,  H04W24/10

Abstract: Techniques for improved spatial reuse for wireless local area network (WLAN) networks are described. An access point (AP) may win a contention to a wireless medium and obtain a transmission opportunity (TXOP). The AP may perform a procedure to identify a group of un-managed APs for participation in spatial reuse opportunities for synchronous transmission over the TXOP. The AP may perform the procedure using over-the-air signaling. The AP may transmit a spatial reuse (SR) poll frame to one or more un-managed APs of the network, either sequentially or as part of a multiple-AP procedure. The AP may receive an SR response frame, or directly measure potential interference of a station (STA) serviced by one or more un-managed APs, and select a group of APs for coordinated reuse over the TXOP. The AP may select the group of APs based on one or more criteria for coordinated reuse.

公开(公告)号：US20200076552A1

公开(公告)日：2020-03-05

申请号：US16559605

申请日：2019-09-03

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  Alfred Asterjadhi ,  Abhishek Pramod Patil ,  Sameer Vermani ,  Bin Tian ,  Stephen Jay Shellhammer ,  Lochan Verma ,  Lin Yang ,  Jialing Li Chen

IPC: H04L5/00 ,  H04W72/04 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communications are described. An access point (AP) may transmit, to a second AP and during a first portion of a transmission opportunity (TxOP), a request to participate in a multi-user (MU) transmission. The AP may receive, from the second AP and during the first portion of the TxOP, an indication of intent to participate in the MU transmission during the second portion of the TxOP, the indication of intent including a resource request of the second AP for participation in the MU transmission. The AP may transmit, during an initial period of the second portion of the TxOP, a trigger signal to the second AP indicating a set of one or more resources for the second AP during the MU transmission. The AP may participate, in conjunction with the second AP and during the second portion of the TxOP, in the MU transmission.