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公开(公告)号：US20200052832A1
公开(公告)日：2020-02-13
申请号：US16536280
申请日：2019-08-08
Applicant: QUALCOMM Incorporated
Inventor： Bin Tian , Hemanth Sampath , Sameer Vermani , Lin Yang , Dung Ngoc Doan , Simone Merlin , Alfred Asterjadhi , Jialing Li Chen , Stephen Jay Shellhammer
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). A station (STA) may send a HARQ transmission to another STA. The HARQ protocol may support the use of different types of feedback from the receiving STA to control the HARQ retransmission process. This disclosure provides example message formats to support HARQ transmission and HARQ feedback in a WLAN.
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公开(公告)号：US10516614B2
公开(公告)日：2019-12-24
申请号：US14469111
申请日：2014-08-26
Applicant: QUALCOMM Incorporated
Inventor： Simone Merlin , Gwendolyn Denise Barriac , Hemanth Sampath , Sameer Vermani
IPC: H04L12/801 , H04N7/173 , H04L1/18 , H04W72/12 , H04W74/04 , H04L12/927 , H04L1/00 , H04L12/911 , H04L12/851 , H04B7/26 , H04L5/00 , H04W72/04 , H04B7/0452 , H04W52/14 , H04W74/00 , H04W74/08 , H04L1/16 , H04W28/24 , H04W52/50 , H04W28/06
Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method of wireless communication is provided. The method includes transmitting a quality of service (QoS) message to a device. The QoS message includes a request for a transmission opportunity for sending uplink data to the device. The QoS message includes at least one of a sequence control field or a QoS control field. The method further includes receiving a clear to transmit (CTX) message in response to the QoS message. The method further includes transmitting data to the device in response to the CTX message.
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公开(公告)号：US10306672B2
公开(公告)日：2019-05-28
申请号：US14268830
申请日：2014-05-02
Applicant: QUALCOMM Incorporated
Inventor： Hao Zhu , Srinivas Katar , Simone Merlin , Chao Zou , Gwendolyn Denise Barriac , George Cherian , Santosh Paul Abraham , Lawrence Winston Yonge, III , Hemanth Sampath
Abstract: A method includes sending, from a first transmitter to a first receiver, a request to send (RTS) message associated with a first transmit opportunity (TXOP). The RTS message requests the first receiver to indicate whether reuse of the first TXOP is permitted. The method further includes receiving, at the first transmitter from the first receiver, a clear to send (CTS) message responsive to the RTS message.
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公开(公告)号：US10243700B2
公开(公告)日：2019-03-26
申请号：US14793101
申请日：2015-07-07
Applicant: QUALCOMM Incorporated
Inventor： Yan Zhou , Santosh Paul Abraham , Gwendolyn Denise Barriac , Simone Merlin , Rahul Tandra , Hemanth Sampath
IPC: H04L1/16 , H04L5/00 , H04B7/0452 , H04L1/00
Abstract: An acknowledgment (ACK) frame has two parts: a group ACK part and a scheduling information part. In the group ACK part, an ACK/NACK indicator is included for a previous uplink (UL) transmission per station (STA). In the scheduling information part, information included for the following UL transmission per selected STA may comprise, for example, one or more of: a number of selected STAs, a media access control (MAC) address of each selected STA, a data transmission duration per selected STA, a transmission rate per selected STA, a request transmission duration, a pilot transmission order, or a STA transmission order.
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公开(公告)号：US20190029042A1
公开(公告)日：2019-01-24
申请号：US16039154
申请日：2018-07-18
Applicant: QUALCOMM Incorporated
Inventor： Maarten Menzo Wentink , Didier Johannes Richard Van Nee , Albert Van Zelst , Bin Tian , Hemanth Sampath
Abstract: Systems and methods are disclosed for a wireless device to transmit or receive a channel busy time (CBT) to or from other devices in a wireless network. For transmitting, the wireless device may determine a CBT during which a wireless channel is to be occupied, generate a universal reservation signal (URS) indicating the CBT, and transmit on the wireless channel the URS to at least one other wireless device. For receiving, the wireless device may receive on a wireless channel a URS from a second wireless device, the URS configured to indicate the CBT. The wireless device may also refrain from attempting to transmit on the wireless channel during the CBT.
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Patent Agency Ranking
公开(公告)号：US10178582B2
公开(公告)日：2019-01-08
申请号：US13957366
申请日：2013-08-01
Applicant: QUALCOMM Incorporated
Inventor： Alfred Asterjadhi , Simone Merlin , Santosh Paul Abraham , Maarten Menzo Wentink , Hemanth Sampath
Abstract: Systems, methods, and devices for communicating packets having a plurality of types are described herein. In some aspects, the packets include a MAC header with a frame control field. The sub-fields included in a particular frame control field may be based on the type of information to be communicated to the receiving device.
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公开(公告)号：US20180324306A1
公开(公告)日：2018-11-08
申请号：US16038023
申请日：2018-07-17
Applicant: QUALCOMM Incorporated
Inventor： Yan Zhou , Simone Merlin , George Cherian , Santosh Paul Abraham , Gwendolyn Denise Barriac , Hemanth Sampath
CPC classification number: H04M3/567 , H04L5/0055 , H04L12/189 , H04M2203/205 , H04M2203/356
Abstract: Devices and methods for synchronized group messaging in a wireless communication system are described. Multicast transmissions, such as those in a dense network, can cause significant medium usage because same multicast packet is likely sent by multiple APs at different time. Medium usage in such implementations may be redundant. As such, the transmission medium is not used optimally. Devices and methods which coordinate and align group messages (e.g., multicast packets) amongst APs are described. Each AP may be configured to transmit identical packets at the same time. Therefore, medium usage can be reduced, while the range can be extended due to accumulated energy from APs.
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公开(公告)号：US20180167324A1
公开(公告)日：2018-06-14
申请号：US15891253
申请日：2018-02-07
Applicant: QUALCOMM Incorporated
Inventor： Simone Merlin , Gwendolyn Denise Barriac , Hemanth Sampath , Sameer Vermani
IPC: H04L12/801 , H04W74/08 , H04B7/26 , H04L1/18 , H04L5/00 , H04B7/0452 , H04W74/04 , H04W74/00 , H04W72/12 , H04W72/04 , H04W52/14 , H04L12/851 , H04W28/24 , H04L1/16 , H04L1/00 , H04W28/06
CPC classification number: H04L47/12 , H04B7/0452 , H04B7/2621 , H04L1/0008 , H04L1/0031 , H04L1/1607 , H04L1/1854 , H04L1/1858 , H04L1/1861 , H04L5/0005 , H04L5/0007 , H04L5/003 , H04L5/0037 , H04L5/0044 , H04L5/0055 , H04L47/14 , H04L47/24 , H04L47/72 , H04L47/805 , H04L2001/0093 , H04N7/17309 , H04W28/06 , H04W28/24 , H04W52/146 , H04W52/50 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W72/0453 , H04W72/12 , H04W72/121 , H04W72/1284 , H04W72/1289 , H04W74/006 , H04W74/008 , H04W74/04 , H04W74/08 , H04W74/085
Abstract: A method for wireless communication is provided. The method comprises transmitting a first wireless message comprising a request for a first user terminal to transmit uplink data and an indication of at least one requested operational parameter. The method also comprises receiving a second wireless message from an access point in response to the first wireless message, the second wireless message indicating whether a plurality of user terminals including the first user terminal is selected to transmit uplink data, the second wireless message indicating at least one operational parameter for transmission of uplink data based on the at least one requested operational parameter.
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公开(公告)号：US09949181B2
公开(公告)日：2018-04-17
申请号：US13767637
申请日：2013-02-14
Applicant: QUALCOMM Incorporated
Inventor： Yan Zhou , George Cherian , Hemanth Sampath
CPC classification number: H04W36/0083 , H04W36/36
Abstract: An access terminal adapts (e.g., self-optimizes) at least one handover parameter used by the access terminal for determining whether and/or how to handover from one access point to another access point. In addition, the access terminal uses different handover parameters for handover between different pairs of access points. For each of the access point pairs, the access terminal maintains a record of any handover issues that occur during handover of the access terminal between the access points. In the event a handover issue arises for a given pair of access points, the access terminal may adapt the handover parameter(s) associated with that access point pair in an attempt to mitigate the handover issue. In the event handover parameter adaptation occurs or occurs too frequently, the access terminal may store the adapted handover parameters for use during a subsequent handover operation and/or handover parameter adaptation operation.
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公开(公告)号：US09942800B2
公开(公告)日：2018-04-10
申请号：US15474734
申请日：2017-03-30
Applicant: QUALCOMM Incorporated
CPC classification number: H04W28/085 , H04L43/08 , H04W24/02 , H04W24/10 , H04W28/08 , H04W36/0083 , H04W36/08 , H04W36/22 , H04W40/12 , H04W40/22 , H04W88/08
Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for load balancing network traffic in a wireless network. In one aspect, an access point may determine a plurality of client devices that are associated with an overloaded channel of the wireless network. The access point may identify a first client device of the plurality of client devices based, at least in part, on an airtime consumed on the overloaded channel. The access point may determine one or more alternate paths between the access point and the first client device. The access point may forecast airtime to be used by the first client device on channels of the one or more alternate paths, and steer wireless network traffic of the first client device to a first alternate path of the one or more alternate paths based, at least in part, on the forecasted airtime.
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