公开(公告)号：US20240129960A1

公开(公告)日：2024-04-18

申请号：US18475631

申请日：2023-09-27

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W52/02 ,  H04W74/00

CPC classification number: H04W74/0891 ,  H04W52/0216 ,  H04W52/0222 ,  H04W74/006 ,  H04W88/08

Abstract: This disclosure provides methods, devices and systems for synchronized channel access. Some implementations more specifically relate to facilitating coexistence among wireless communication devices that support synchronized channel access and those that do not. A group of access points may schedule periodically recurring, synchronized channel access periods by periodically transmitting quiet elements. The quiet elements establish recurring quiet periods during which legacy devices are not permitted to transmit. In some implementations, an access point may transmit one or more quiet override elements each associated with a respective quiet element and indicating to other access points supporting synchronized channel access that they are permitted to contend for access during the respective quiet period. In some other implementations of synchronized channel access, an access point supporting synchronized channel access that wins contention after one or more consecutive synchronized channel access periods during which no other synchronized access points won contention, may be entitled to an extended TXOP.

公开(公告)号：US20210152396A1

公开(公告)日：2021-05-20

申请号：US17077641

申请日：2020-10-22

Applicant: QUALCOMM Incorporated

Inventor： George CHERIAN ,  Lochan VERMA ,  Alfred ASTERJADHI ,  Sameer VERMANI

IPC: H04L25/02 ,  H04B7/0452 ,  H04W48/16

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for group formation and sounding for distributed multi-user multiple input multiple output (MU-MIMO). Some implementations include a method of wireless communication. The method includes a sounding preparation phase that includes transmitting, to the plurality of access points, a first frame inviting the plurality of access points to perform a beamformed distributed transmission from the plurality of access points to a group of stations; receiving a second frame from at least one of the plurality of access points based on transmitting the first frame, the second frame including at least one identifier of at least one station in a different basic service set than a basic service set of the first access point; and identifying the group of stations based on the at least one identifier included in the second frame.

公开(公告)号：US20190141717A1

公开(公告)日：2019-05-09

申请号：US16157945

申请日：2018-10-11

Applicant: QUALCOMM Incorporated

Inventor： Lin YANG ,  Bin TIAN ,  Jialing Li CHEN ,  Lochan VERMA ,  Sameer VERMANI ,  Ning ZHANG ,  Kai SHI ,  Youhan KIM ,  Vincent Knowles JONES, IV

IPC: H04W72/08 ,  H04L5/00 ,  H04L1/00 ,  H03M13/11 ,  H03M13/00

Abstract: Aspects of the present disclosure provide techniques for interleaving in single user (SU) preamble puncturing in wireless local area networks (WLANs). In one implementation, a wireless device can identify an SU preamble puncture transmission, encode information for the SU preamble puncture transmission to produce encoded bits, parse the encoded bits into multiple segments, parse the encoded bits among multiple resource units (RUs) within each of the multiple segments, and perform a tone interleaving of the encoded bits within each of the multiple RUs. These techniques can be used in a 6 GHz band, as well as a 2.4 GHz band or a 5 GHz band.

公开(公告)号：US20180124778A1

公开(公告)日：2018-05-03

申请号：US15799163

申请日：2017-10-31

Applicant: QUALCOMM Incorporated

Inventor： Lochan VERMA ,  Sameer VERMANI ,  Bin TIAN ,  Alfred ASTERJADHI

IPC: H04W72/04 ,  H04L27/26

CPC classification number: H04W72/0413 ,  H04L27/2602 ,  H04L27/2626 ,  H04W72/0446 ,  H04W72/121 ,  H04W84/12 ,  H04W88/08

Abstract: The present disclosure describes a method and an apparatus for techniques used for back-to-back uplink transmissions from multiple stations in wireless local area networks (WLANs). An example method includes transmitting, from the AP, a control frame to the plurality of STAs, wherein the control frame contains configuration information related to a plurality of consecutive transmission slots; and receiving, at the AP, back-to-back uplink (UL) response frames from the plurality of STAs in the plurality of consecutive transmission slots. An additional example method includes receiving, at the STA, a control frame from the AP, wherein the control frame contains configuration information related to a plurality of consecutive transmission slots; and transmitting, from the STA, uplink (UL) response frames in one or more transmission slots of the plurality of consecutive transmission slots based at least on the configuration information in the control frame.

公开(公告)号：US20230337227A1

公开(公告)日：2023-10-19

申请号：US18183787

申请日：2023-03-14

Applicant: QUALCOMM Incorporated

Inventor： Alfred ASTERJADHI ,  Abhishek Pramod PATIL ,  Lochan VERMA ,  George CHERIAN

IPC: H04W72/1268 ,  H04W28/02 ,  H04W72/0446 ,  H04W72/52 ,  H04W72/543

CPC classification number: H04W72/1268 ,  H04W28/0268 ,  H04W72/0446 ,  H04W72/52 ,  H04W72/543 ,  H04W84/12

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for managing uplink access in a wireless local area network. A station (STA) may inform an access point (AP) of uplink quality of service (QoS) parameters for a traffic flow from the STA. The AP may control uplink resources to satisfy the QoS parameters. For example, the AP may select from among different access modes (including a single user (SU) access mode, an uplink multi-user (UL-MU) scheduled access mode, a multi-user enhanced distributed controlled access (MU EDCA) access mode, or a low latency (LL) access mode). The AP may cause the STA to use a SU access mode or the LL access mode if the UL-MU scheduled access mode and the MU EDCA access mode are not sufficient to satisfy the uplink QoS parameters for the traffic flow.

公开(公告)号：US20230007572A1

公开(公告)日：2023-01-05

申请号：US17942988

申请日：2022-09-12

Applicant: QUALCOMM Incorporated

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

IPC: H04W48/08 ,  H04W76/11 ,  H04W8/24 ,  H04W48/16 ,  H04W74/08 ,  H04W72/04 ,  H04W4/23 ,  H04L1/16 ,  H04W12/73 ,  H04W76/15

Abstract: This disclosure provides systems, methods, and apparatuses for associating a wireless communication device such as a wireless station (STA) of a STA multi-link device (MLD) with an access point (AP) MLD that includes a first AP associated with a first communication link of the AP MLD and includes one or more secondary APs associated with one or more respective secondary communication links of the first AP MLD. The first AP includes one or more virtual APs, and the first AP and the one or more virtual APs of the first AP belong to a first multiple basic service set identifier (BSSID) set associated with the first communication link. The AP MLD transmits a frame including a first element carrying discovery information for the first AP and the one or more virtual APs belonging to the first multiple BSSID set, and including a second element carrying discovery information for the one or more secondary APs of the first AP MLD associated with the one or more respective secondary communication links of the first AP MLD.

公开(公告)号：US20220393843A1

公开(公告)日：2022-12-08

申请号：US17820042

申请日：2022-08-16

Applicant: QUALCOMM Incorporated

Inventor： Lochan VERMA ,  Bin TIAN ,  Sameer VERMANI ,  Lin YANG ,  Youhan KIM

IPC: H04L5/00 ,  H04W72/04

Abstract: An access point (AP) may signal management frames that include two operation information fields indicating two channel widths for different classes of wireless stations (STAs). STAs may identify one of the two operation information fields based on capabilities of the STA (e.g., whether or not the STA is capable of dual band channel bonding, resource unit or physical channel puncturing, etc.). In some cases, one operation information field may indicate a channel width within a first and second frequency band (e.g., within the 5 GHz band and the 6 GHz band), as well as a puncturing scheme associated with the channel width. In some cases, the operation information field may indicate a dual band channel bonding configuration, where two frequency segments associated with the channel bonding configuration are in two different frequency bands. In some cases, a tightened spectral mask may be used for such dual band channel bonding configurations.

公开(公告)号：US20210212142A1

公开(公告)日：2021-07-08

申请号：US17142196

申请日：2021-01-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/15 ,  H04W80/02 ,  H04L1/16 ,  H04L1/18

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 multi-link device (MLD), that includes a first station (STA) and a second STA, to generate and provide block acknowledgment (BA) status reports for Medium Access Control (MAC) Protocol Data Units (MPDUs) transmitted by the first STA of the first MLD and the second STA of the first MLD. Another 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 logical entity of a first MLD to receive and process a BA status report.

公开(公告)号：US20210022178A1

公开(公告)日：2021-01-21

申请号：US16924891

申请日：2020-07-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W72/12 ,  H04W72/04 ,  H04B17/318

Abstract: Certain aspects of the present disclosure provide techniques that may allow multiple access points (APs) to coordinate to send simultaneous OFDMA transmissions to a single user (SU). A set of APs participating in such a coordinated effort may be referred to as a coordinated AP (CAP) set. Hence, the transmissions according to this scheme may be referred to as CAP SU OFDMA transmissions.

公开(公告)号：US20200083983A1

公开(公告)日：2020-03-12

申请号：US16562907

申请日：2019-09-06

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li CHEN ,  Dung Ngoc DOAN ,  Bin TIAN ,  Lin YANG ,  Sameer VERMANI ,  Lochan VERMA ,  Stephen Jay Shellhammer

IPC: H04L1/00 ,  H04L1/18 ,  H04L27/26 ,  H04B7/0417

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for low density parity check (LDPC)-based incremental redundancy (IR) hybrid automatic repeat request (HARQ) transmission processing. In one aspect, an apparatus for wireless communications is configured to generate a first packet using a LDPC encoding process. The apparatus is further configured to generate coded bits using a second LDPC encoding process if the first packet is not successfully decoded by a wireless device, generate a second packet including at least some of the coded bits generated using the second LDPC encoding process, and output the second packet for transmission.