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公开(公告)号：US10588152B2
公开(公告)日：2020-03-10
申请号：US16252314
申请日：2019-01-18
Applicant: QUALCOMM Incorporated
Inventor： Yan Zhou , Gwendolyn Denise Barriac , George Cherian , Simone Merlin , Alfred Asterjadhi , Qingjiang Tian , Gang Ding
Abstract: The present disclosure provides techniques for configuring the utilization of request-to-send/clear-to-send (RTS/CTS) protocol procedures based on varying conditions at the STA. For example, an AP may identify one or more conditions, when satisfied, may trigger the STA to either enable or disable uplink (UL) transmissions associated with a RTS/CTS protocol procedure. In some aspects, an AP may determine a transmit opportunity (TXOP) threshold for an STA and may determine whether to broadcast a message having the TXOP threshold to multiple STAs including the STA or unicast the message to the STA. An STA may receive a message from an AP having a TXOP threshold and may replace, based on an indication in the received message, a current TXOP threshold in the STA with the TXOP threshold in the received message. The STA may transmit an UL RTS frame in response to a determination that a planned TXOP duration satisfies the TXOP threshold.
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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
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.
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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
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.
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公开(公告)号：US20200068486A1
公开(公告)日：2020-02-27
申请号：US16548571
申请日：2019-08-22
Applicant: QUALCOMM Incorporated
Inventor： Alfred Asterjadhi , George Cherian , Abhishek Pramod Patil
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.
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公开(公告)号：US10554265B2
公开(公告)日：2020-02-04
申请号：US16105393
申请日：2018-08-20
Applicant: QUALCOMM Incorporated
Inventor： Venkata Ramanan Venkatachalam Jayaraman , Abhishek Pramod Patil , Yan Zhou , Alfred Asterjadhi , George Cherian
Abstract: Features related to providing feedback corresponding to a portion of a data frame while another portion of the data frame is being received are described. In an aspect, a first device may transmit, to a second device, at least one MPDU of a plurality of MPDUs within the data frame via a data channel, and receive feedback corresponding to the at least one MPDU in a feedback channel while at least a first MPDU of the remaining MPDUs within the data frame is being transmitted. In another aspect, a first device, e.g., receiver of data frame, may receive, from a second device, at least one MPDU of a plurality of MPDUs within a data frame, and transmit feedback corresponding to the at least one MPDU while at least a first MPDU of the remaining MPDUs within the data frame is being received.
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Patent Agency Ranking
公开(公告)号：US10517006B2
公开(公告)日：2019-12-24
申请号：US15483672
申请日：2017-04-10
Applicant: QUALCOMM Incorporated
Inventor： Simone Merlin , Jialing Li Chen , Guido Robert Frederiks , Alfred Asterjadhi , George Cherian
Abstract: Aspects described herein relate to requesting and/or reporting channel feedback. A request for channel feedback can be generated by an access point, where the request includes an indicator specifying that the request uses a first format different from a second format, where the indicator corresponds to a bit of a station (STA) information field defined by the second format. The access point can transmit, and a STA can receive, the request for channel feedback.
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公开(公告)号：US20190387524A1
公开(公告)日：2019-12-19
申请号：US16440910
申请日：2019-06-13
Applicant: QUALCOMM Incorporated
Inventor： Alfred Asterjadhi , George Cherian , Abhishek Pramod Patil
Abstract: Methods, systems, and devices are described for wireless communications. A wireless device may advertise communication parameters for a particular frequency band over another frequency band. In one example, a wireless device generates multi-band wrapper information element or a neighbor report information element, which may include one or more subelements, each conveying communication information for a particular frequency band. The wireless device may include the multi-band wrapper information element or the neighbor report information element in a management frame and may transmit the management frame over a first frequency band. Another wireless device may receive the management frame over the first frequency band and may obtain the communication information for other frequency bands from the included multi-band wrapper information element. In some cases, a subelement carries communication information that is sufficient for the receiving device to directly associate with the transmitting device over the other frequency bands.
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公开(公告)号：US10477568B2
公开(公告)日：2019-11-12
申请号：US15364196
申请日：2016-11-29
Applicant: QUALCOMM Incorporated
Inventor： Simone Merlin , Alfred Asterjadhi
Abstract: The disclosure provides methods and apparatuses for multiple user uplink. One aspect of the disclosure provides a method for wireless communication. The method comprises receiving a trigger frame from an access point indicating a target transmission duration for transmission of a physical layer (PHY) service data unit (PSDU) to the access point. The method also comprises generating an aggregated medium access control (MAC) packet data unit (A-MPDU) frame comprising at least one A-MPDU subframe, the A-MPDU frame having a first length, determining whether an additional A-MPDU subframe having a second length may be added to the A-MPDU frame based at least in part on the first length, the second length, and the target transmission duration, and including one or more padding subframes in the A-MPDU frame based at least in part on a comparison between the first length and the target transmission duration.
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公开(公告)号：US20190342064A1
公开(公告)日：2019-11-07
申请号：US16390702
申请日：2019-04-22
Applicant: QUALCOMM Incorporated
Inventor： Bin Tian , Sameer Vermani , Lin Yang , Lochan Verma , George Cherian , Alfred Asterjadhi , Abhishek Pramod Patil
Abstract: Aspects of the present disclosure relate to a wireless device including one or more processors and a memory storing processor-readable instructions that, when executed by the one or more processors, causes the wireless device to perform operations. The operations include receiving a first message indicating a reuse transmission opportunity associated with a downlink transmission from a first device to a second device. The operations further include determining to participate in the reuse transmission opportunity based at least in part on the downlink transmission. The operations further include, during the reuse transmission opportunity, transmitting uplink communications to the first device concurrently with the downlink transmission from the first device to the second device in the same frequency channel.
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公开(公告)号：US10470174B2
公开(公告)日：2019-11-05
申请号：US16244036
申请日：2019-01-09
Applicant: QUALCOMM Incorporated
Inventor： Lochan Verma , Sameer Vermani , Bin Tian , Lin Yang , Raja Banerjea , Alfred Asterjadhi
IPC: H04W72/04 , H04W52/24 , H04W74/04 , H04L5/00 , H04L27/26 , H04W16/14 , H04W52/14 , H04W74/00 , H04W84/12
Abstract: The present disclosure provides various aspects related to techniques for generating trigger frames, at an access point (AP), that reduce the overhead associated with triggering an uplink transmission from the wireless station (STA). Features of the present disclosure achieve this by, for example, utilizing a single per-user information field of the trigger to signal a plurality of random access resource units that may be allocated to the one or more STAs in the network. Such a technique is an improvement over the conventional system that require each random access resource unit to be signaled separately in a separate per-user information field (thus increasing the overhead). Additionally, aspects of the present disclosure allow the AP to effectively signal to the STA whether the one or more resources allocated to the at least one STA are a single user resource unit allocation or a multi-user resource unit allocation.
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