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81.
公开(公告)号:US20210266998A1
公开(公告)日:2021-08-26
申请号:US17177670
申请日:2021-02-17
Applicant: QUALCOMM Incorporated
Inventor: Sai Yiu Duncan HO , Abhishek Pramod Patil , George Cherian , Alfred Asterjadhi , Yanjun Sun
Abstract: This disclosure provides systems, methods, and apparatus for wireless communications. In one aspect, an apparatus may obtain, for a first access point (AP), a first service set identifier (SSID) associated with single-link communications and obtain, for a second AP, a second SSID associated with multi-link communications. The apparatus may obtain, from a wireless communication device, a management frame include a multi-link operation information field that carries a first SSID and obtain a multi-link indication for the wireless communication device based, at least in part, on the first SSID, the multi-link indication indicating whether the wireless communication device includes AP capable of link aggregation, and selectively associate with the wireless communication device based on the multi-link indication.
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公开(公告)号:US20210014911A1
公开(公告)日:2021-01-14
申请号:US16926644
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
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.
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公开(公告)号:US10820346B2
公开(公告)日:2020-10-27
申请号:US16111976
申请日:2018-08-24
Applicant: QUALCOMM Incorporated
Inventor: Abhishek Pramod Patil , George Cherian , Alfred Asterjadhi , Venkata Ramanan Venkatachalam Jayaraman , Yanjun Sun
IPC: H04W74/08
Abstract: The described techniques relate to improved methods, systems, devices, or apparatuses that support clear channel assessment adjustment for in-band link aggregation. Generally, the described techniques provide for improved handling of adjacent channel interference in multi-link aggregation scenarios. In accordance with the described techniques, a device may establish a set of wireless links for communication with a second device, the set of wireless links supporting parallel transmission during at least a first duration of a multi-link session, the set of wireless links including at least a first wireless link and a second wireless link. The device may identify a parameter value modifying a channel availability threshold to use during a channel access procedure for a first wireless channel of the first wireless link based on a presence of the second wireless link. The device may perform the channel access procedure for the first wireless channel based on the identified parameter value.
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公开(公告)号:US10813049B2
公开(公告)日:2020-10-20
申请号:US15905785
申请日:2018-02-26
Applicant: QUALCOMM Incorporated
Inventor: Yanjun Sun , Alfred Asterjadhi , Bin Tian , George Cherian , Stephen Jay Shellhammer , Lochan Verma
Abstract: A method and an apparatus for wireless communication are provided. In one configuration, an apparatus is configured to transmit a wake-up radio (WUR) signal, to determine to transmit a second signal within a SIFS after transmitting the WUR signal to increase medium reuse, and to transmit the second signal within the SIFS after transmitting the WUR signal based on the determination. The second signal may be a data, management, control, ACK, or CF-end frame to enable legacy devices that do not decode the WUR signal to avoid wasted airtime cause by EIFS after the WUR signal. In another configuration, the apparatus is configured to transmit a CTS-to-self frame, to determine to transmit a second signal within a SIFS after transmitting the CTS-to-self frame, and to transmit the second signal based on the determination. The second signal may be a WUR signal or an intermediate signal followed by a WUR signal.
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公开(公告)号:US20190082463A1
公开(公告)日:2019-03-14
申请号:US16111976
申请日:2018-08-24
Applicant: QUALCOMM Incorporated
Inventor: Abhishek Pramod Patil , George Cherian , Alfred Asterjadhi , Venkata Ramanan Venkatachalam Jayaraman , Yanjun Sun
IPC: H04W74/08
CPC classification number: H04W74/0808
Abstract: The described techniques relate to improved methods, systems, devices, or apparatuses that support clear channel assessment adjustment for in-band link aggregation. Generally, the described techniques provide for improved handling of adjacent channel interference in multi-link aggregation scenarios. In accordance with the described techniques, a device may establish a set of wireless links for communication with a second device, the set of wireless links supporting parallel transmission during at least a first duration of a multi-link session, the set of wireless links including at least a first wireless link and a second wireless link. The device may identify a parameter value modifying a channel availability threshold to use during a channel access procedure for a first wireless channel of the first wireless link based on a presence of the second wireless link. The device may perform the channel access procedure for the first wireless channel based on the identified parameter value.
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公开(公告)号:US09629071B2
公开(公告)日:2017-04-18
申请号:US14035991
申请日:2013-09-25
Applicant: QUALCOMM Incorporated
Inventor: Qingjiang Tian , Yanjun Sun , Peerapol Tinnakornsrisuphap
CPC classification number: H04W48/16 , H04W36/0033 , H04W36/08 , H04W60/00
Abstract: A first AP in a wireless network determines that a wireless client device should re-associate from the first AP to a second AP of the wireless network. The first AP communicates an AP coordination message from the first AP to the second AP to share coordination information with the second AP. The first AP coordinates with the second AP to cause the re-association of the wireless client device in accordance with the coordination information. The first and second AP may coordinate directly to synchronize re-association activities. Re-association activities may include the use of a configuration message to the wireless client device, managing transmit power of beacon messages from the first and second APs, or forced disassociation and blocking. The first AP may maintain a record of which re-association activity was successful in causing the wireless client device to re-associate to the second AP.
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公开(公告)号:US12219467B2
公开(公告)日:2025-02-04
申请号:US17651136
申请日:2022-02-15
Applicant: QUALCOMM Incorporated
Inventor: Gaurang Naik , Abhishek Pramod Patil , Yanjun Sun , Abdel Karim Ajami , Alfred Asterjadhi , George Cherian , Sai Yiu Duncan Ho
Abstract: A transmitting (Tx) access point (AP) multi-link device (MLD) may be configured to designate a parent ML element and at least one child ML element in the network management frame, e.g., the beacon frame or probe response frame, and at least one non-AP MLD may be configured to receive the network management frame and apply the parent ML element to the child ML element.
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公开(公告)号:US12219464B2
公开(公告)日:2025-02-04
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 , H04L1/1607 , H04W4/23 , H04W8/24 , H04W12/73 , H04W48/16 , H04W72/0446 , H04W74/0808 , 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 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.
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89.
公开(公告)号:US12082251B2
公开(公告)日:2024-09-03
申请号:US17181987
申请日:2021-02-22
Applicant: QUALCOMM Incorporated
Inventor: Sai Yiu Duncan Ho , George Cherian , Abhishek Pramod Patil , Alfred Asterjadhi , Raja Banerjea , Bin Tian , Yanjun Sun
IPC: H04W74/08 , H04L1/1607 , H04W56/00 , H04W72/541 , H04W74/0816
CPC classification number: H04W74/0816 , H04L1/1621 , H04W56/0045 , H04W72/541 , H04W74/0891
Abstract: This disclosure provides methods, devices and systems for non-simultaneous transmit and receive (STR) station (STA) transmissions using multiple links. In one aspect, a medium synchronization delay timer associated with a second link of the non-STR STA can be initiated in response to completing transmission of the data on the first link to delay triggering of a clear channel assessment (CCA) associated with the second link. Data can be transmitted on the second link in response to expiration of the medium synchronization delay timer. In another aspect, an energy detect (ED) threshold level on a second link may be decreased from a first ED threshold level to a second ED threshold level after transmitting the data on the first link. In a further aspect, a block acknowledgment (BA) frame including a network allocation vector (NAV) synchronization of a second access point may be transmitted to the first link of the station.
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公开(公告)号:US12069723B2
公开(公告)日:2024-08-20
申请号:US17461670
申请日:2021-08-30
Applicant: QUALCOMM Incorporated
Inventor: George Cherian , Alfred Asterjadhi , Yanjun Sun , Sai Yiu Duncan Ho , Abhishek Pramod Patil
IPC: H04W74/0808
CPC classification number: H04W74/0808
Abstract: In some implementations, an access point (AP) establishes a restricted target wake time (TWT) session including at least one restricted TWT service period (SP) for peer-to-peer (P2P) communications. The AP admits a group of wireless stations (STAs) associated with P2P communications as members of the restricted TWT session, obtains a transmission opportunity (TXOP) on the wireless channel during the at least one restricted TWT SP, and transmits, on the wireless channel, a protection frame identifying one or more STAs of the group of STAs belonging to the restricted TWT session that are permitted to transmit or receive P2P communications on the wireless channel during the TXOP. The protection frame may also indicate to receiving devices other than the one or more identified STAs that the wireless channel is unavailable for at least a portion of the TXOP.
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