公开(公告)号：US11228963B2

公开(公告)日：2022-01-18

申请号：US16926641

申请日：2020-07-10

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  George Cherian ,  Alfred Asterjadhi ,  Sai Yiu Duncan Ho ,  Lochan Verma ,  Yanjun Sun

IPC: H04L1/16 ,  H04W4/23 ,  H04W8/24 ,  H04W12/73 ,  H04W48/08 ,  H04W48/16 ,  H04W72/04 ,  H04W74/08 ,  H04W76/11 ,  H04W76/15 ,  H04W80/02 ,  H04W84/12 ,  H04W88/02 ,  H04W88/10 ,  H04W92/02 ,  H04W92/10

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 AP MLD transmits a frame including an advertising information element carrying discovery information for the first AP of the AP MLD, including a first portion carrying discovery information for each secondary AP of the one or more secondary APs of the AP MLD, and including a second portion carrying common attributes of the one or more secondary APs of the AP MLD.

公开(公告)号：US11206687B2

公开(公告)日：2021-12-21

申请号：US16874010

申请日：2020-05-14

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：US11083021B2

公开(公告)日：2021-08-03

申请号：US16106705

申请日：2018-08-21

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  James Simon Cho ,  George Cherian ,  Simone Merlin ,  Abhishek Pramod Patil

IPC: H04W74/08 ,  H04W74/00 ,  H04L29/08 ,  H04W88/08 ,  H04W84/12

Abstract: An access point (AP) may prioritize the allocation of uplink resources between multiple basic service sets (BSSs). In some aspects, the AP may select one of a plurality of BSSs, may allocate one or more random-access resource units (RUs) to only the selected BSS, and may transmit, for each of the selected BSSs, a respective frame indicating the random-access RUs allocated to that BSS. Wireless devices belonging to the selected BSS may contend for access to the random-access RUs allocated by the frame, and then transmit uplink data using the random-access RUs.

公开(公告)号：US11057826B2

公开(公告)日：2021-07-06

申请号：US16548571

申请日：2019-08-22

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil

IPC: H04L5/00 ,  H04W48/16 ,  H04W84/12

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide that an access point (AP) or a station (STA) may identify, from a set of channels in a radio frequency spectrum band, a subset of discovery channels. The discovery channels may be designated for discovery signaling for device association. An AP may transmit discovery information for associating with a STA over a discovery channel from the subset of discovery channels. In some examples, the AP may receive a probe request from a STA operating in an active scanning mode, and may transmit the discovery information in a probe response. In some examples, the AP may transmit the discovery information in a periodic signal, such as a beacon, to a STA operating in a passive scanning mode. The AP may receive an association request and associate with the STA.

公开(公告)号：US11044057B2

公开(公告)日：2021-06-22

申请号：US16502428

申请日：2019-07-03

Applicant: QUALCOMM incorporated

Inventor： Alfred Asterjadhi ,  Abhishek Pramod Patil ,  George Cherian ,  Lin Yang ,  Bin Tian ,  Sameer Vermani ,  Lochan Verma

IPC: H04L5/00 ,  H04W72/04

Abstract: This disclosure provides methods, devices, and systems for wireless communications. In some systems, an access point (AP) may assign a resource unit (RU) including a non-contiguous set of tones of a channel to a wireless node, such as a station (STA). The non-contiguous set of tones includes at least some tones that are non-contiguous in the frequency domain with all other tones of the set. The AP may generate an indicator for this RU and may transmit the indicator to the wireless node. The wireless node may receive the indicator, determine the non-contiguous set of tones for the indicated RU, and transmit data over the non-contiguous set of tones for the RU. The AP may receive the data via the RU (over the non-contiguous set of tones).

公开(公告)号：US11032780B2

公开(公告)日：2021-06-08

申请号：US15253651

申请日：2016-08-31

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Rahul Tandra ,  Bin Tian ,  Youhan Kim ,  Simone Merlin ,  George Cherian

IPC: H04W52/24 ,  H04W52/14 ,  H04L27/26 ,  H04B7/0452 ,  H04L1/00 ,  H04W52/22 ,  H04L5/00 ,  H04W52/36 ,  H04W52/26

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a target receiver power level for uplink transmissions received at the apparatus, to determine uplink power control information based on the determined target receiver power level for UL MU-MIMO transmission or UL OFDMA transmission, and to transmit a frame that includes the determined uplink power control information to a station scheduled by the apparatus for uplink transmission.

公开(公告)号：US11032207B2

公开(公告)日：2021-06-08

申请号：US16183586

申请日：2018-11-07

Applicant: QUALCOMM incorporated

Inventor： Abhishek Pramod Patil ,  George Cherian ,  Alfred Asterjadhi

IPC: H04L12/891 ,  H04W76/15 ,  H04W88/06 ,  H04W28/08 ,  H04L12/709 ,  H04L12/801 ,  H04W28/02 ,  H04W74/00 ,  H04W74/08 ,  H04W84/12

Abstract: This disclosure provides systems, methods, and apparatuses for dynamically changing a primary communication link on which wireless devices contend for access to a shared wireless medium. An access point (AP) may monitor the channel conditions on a primary link and one or more secondary links of a multi-link environment, and may signal a change in the primary link (such as to one of the secondary links) when one or more conditions are satisfied. The AP may signal the change to one or more wireless stations (STAs) in its Basic Service Set (BSS). In some aspects, the AP may signal the change in primary link via beacon frames broadcast periodically at Target Beacon Transmission Times (TBTTs). In some other aspects, the AP may signal the change in primary link via unicast management or control frames targeted at STAs that may not receive one or more beacons broadcast by the AP.

公开(公告)号：US20210160958A1

公开(公告)日：2021-05-27

申请号：US17100738

申请日：2020-11-20

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Sai Yiu Duncan Ho ,  George Cherian ,  Alfred Asterjadhi ,  Lochan Verma

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

Abstract: This disclosure provides methods, devices and systems for wireless communication, and particularly, methods, devices and systems for multi-link operation. A first wireless local area network (WLAN) device (such as an AP) may establish a multi-link association between the first WLAN device and a second WLAN device. The multi-link association may coordinated by an upper media access control (U-MAC) layer of the first WLAN device that is capable of transmitting data to the second WLAN device via a first wireless communication link using a first WLAN interface and a second wireless communication link using a second WLAN interface. This disclosure provides several alternatives for handling packet numbering and fragmentation at the U-MAC layer or at each of the first WLAN interface and the second WLAN interface.

公开(公告)号：US10993171B2

公开(公告)日：2021-04-27

申请号：US16235703

申请日：2018-12-28

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Alfred Asterjadhi ,  George Cherian

IPC: H04W48/10 ,  H04W72/12 ,  H04W8/26 ,  H04W52/02 ,  H04W76/11

Abstract: Certain aspects relate to methods, apparatuses, computer readable mediums, access points and stations. For example, the apparatus generally includes (1) a processing system configured to select a first address from a plurality of addresses associated with the apparatus, said plurality of addresses including the first address and one or more second addresses and generate a frame having (i) a header having the first address (ii) a first portion having one or more indications of the one or more second addresses and (iii) a second portion comprising first parameters for communication with the apparatus and (2) an interface configured to output the frame for transmission.

公开(公告)号：US10972962B2

公开(公告)日：2021-04-06

申请号：US16182345

申请日：2018-11-06

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Jouni Kalevi Malinen ,  Ravi Gidvani ,  Alfred Asterjadhi ,  George Cherian

IPC: H04W48/08 ,  H04W40/24 ,  H04W84/12

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for signaling basic service set (BSS) identifiers (BSSIDs). A group of BSSs may form a Multiple BSSID set in which one BSS sent management frames on behalf of other BSSs (referred to as non-transmitting BSSIDs). For example, a management frame (such as a Beacon Frame or Probe Response Frame) may include a list of BSSIDs for some or all of the non-transmitting BSSIDs in the Multiple BSSID set. An indicator in the management frame may indicate whether the management frame includes a partial list or complete list of non-transmitting BSSIDs in the Multiple BSSID set. The management frame may include a count or bitmap to indicate the quantity of BSSIDs in the Multiple BSSID set. A station (STA) may indicate which BSSIDs it has discovered and request the remaining BSSIDs in the Multiple BSSID set.