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公开(公告)号：US12177911B2
公开(公告)日：2024-12-24
申请号：US18488311
申请日：2023-10-17
Applicant: QUALCOMM Incorporated
Inventor： Qi Xue , Srinivas Katar , Chao Zou , Naveen Gangadharan , Neelakantan Nurani Krishnan , Sandip Homchaudhuri , Xiaolong Huang , Anish Ashok
Abstract: This disclosure provides systems, methods and apparatus for synchronous channel access control of a wireless system. In some aspects, a device may use a TWT session to communicate with a second device during one or more TWT service periods. Uplink and downlink communications may be coordinated to both be in a TWT service period to allow a device to enter a low power mode outside of the TWT service period. The TWT session, including the service periods, may be configured and managed by the device or the second device to ensure the communications associated with an XR experience between the devices (such as pose data frames or tracking frames provided as uplink data and video data frames provided as downlink data) meet latency requirements or other requirements for the XR experience. Use of TWT service periods allows other devices to use the wireless medium outside of the TWT service periods.
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公开(公告)号：US20240098549A1
公开(公告)日：2024-03-21
申请号：US17934155
申请日：2022-09-21
Applicant: Qualcomm Incorporated
Inventor： Xiaolong HUANG , Manish Shukla , Srinivas Katar , Sandip Homchaudhuri , Simon Jan Brand , Harinder Singh , Tejaswini Gollamudi , Qinfang Sun
IPC: H04W28/02
CPC classification number: H04W28/0231 , H04W84/12
Abstract: Aspects of the present disclosure allow for improving E2E mesh throughput by applying transmission (TX) biasing on the Wi-Fi mesh backhaul. Aspects of the disclosure are directed to solutions for reducing traffic load in Wi-Fi mesh networks by applying TX biasing on the Wi-Fi mesh backhaul. Certain aspects are directed to selectively transmitting or preventing transmission of data over the first backhaul link to the first MLD based at least in part on a fronthaul airtime utilization, a first backhaul airtime utilization, or a second backhaul airtime utilization. Doing so allows a root access point or a network controller to apply TX biasing between multi-link operation links towards each repeater so that traffic load on a backhaul-link would not overly occupy the front-haul link because of common channel use by selectively transmitting or preventing transmission of data on the backhaul links.
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公开(公告)号：US10912088B2
公开(公告)日：2021-02-02
申请号：US15994798
申请日：2018-05-31
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Katar , Amod Bodas , Ramaswamy Venkateshwaran , Farrukh Usmani , Ravi Gidvani , Hang Su
Abstract: Method, systems, and apparatuses are described for wireless communications. More particularly, a wireless station may connect to a wireless network using a first radio frequency (RF) band and detect a signal strength of the first RF band is greater than a roaming threshold. The wireless station may perform a plurality of scans for support by the wireless network of a second RF band in response to the detected signal strength. Each scan may occur when the signal strength of the first RF band is greater than the roaming threshold. The wireless station may selectively connect to the wireless network using the second RF band based at least in part on the scanning and a throughput supported by the wireless network over the second RF band. The first RF band may be a 2.4 GHz band and the second RF band may be a 5 GHz band.
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公开(公告)号：US20180310279A1
公开(公告)日：2018-10-25
申请号：US15960297
申请日：2018-04-23
Applicant: QUALCOMM Incorporated
Inventor： Ajay Kumar Pathak , Srinivas Katar , Xiaolong Huang , Kapil Rai
Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for communicating channel selection constraints in a network having multiple access points (APs). In one aspect, a root AP may assist with channel selection (assignment) for the multiple APs. A first AP can provide channel operating constraints to the root AP to indicate one or more operating constraints for a particular channel that may be used by the first AP. The operating constraints may be based, at least in part, on a hardware characteristic of the first AP. For example, an operating constraint may indicate a minimum channel separation or a maximum transmit power to consider when the particular channel is used concurrently with another channel. In another aspect, the first AP can communicate a channel selection error and error code when a particular channel cannot be used due to an operating constraint.
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公开(公告)号：US10063292B2
公开(公告)日：2018-08-28
申请号：US14831349
申请日：2015-08-20
Applicant: QUALCOMM Incorporated
Inventor： Olaf Josef Hirsch , Xiaolong Huang , Srinivas Katar
IPC: H04B7/04 , H04B7/0452 , H04W24/02 , H04B7/06 , H04B7/08 , H04W52/02 , H04W72/12 , H04W88/08 , H04W88/06 , H04W72/04
CPC classification number: H04B7/0452 , H04B7/0623 , H04B7/0689 , H04B7/0871 , H04W24/02 , H04W52/0225 , H04W72/046 , H04W72/1215 , H04W88/06 , H04W88/08 , Y02D70/00 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/166 , Y02D70/444
Abstract: Methods, devices, and computer-readable media for wireless communication may involve techniques for managing multi-user (MU) operation when a device in a wireless network has coexisting radios. Such techniques may involve identifying a change in a multiple radio access technology (RAT) coexistence status of a first device, e.g., a change between a coexistence status that is not disruptive to MU communications and one that is disruptive. For a device communicating with a network using Wi-Fi, the change in the multiple RAT coexistence status may indicate a change between inactive Bluetooth (BT) communications and active BT communications concurrent with Wi-Fi communications. Based at least in part on the identified change in the multiple RAT coexistence status, a MU communications operation at a second device may be adjusted, for example, by disabling MU communication between the first and second devices over a first RAT when the first device changes to a coexistence status that may disrupt MU communications.
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Patent Agency Ranking
公开(公告)号：US20180227108A1
公开(公告)日：2018-08-09
申请号：US15424567
申请日：2017-02-03
Applicant: QUALCOMM Incorporated
Inventor： Hao Zhu , Srinivas Katar , Xiaolong Huang , Chao Zou , Deniz Rende
IPC: H04L5/00
CPC classification number: H04B17/373 , H04B17/309 , H04B17/336 , H04L1/0002 , H04L1/0015 , H04L27/2601
Abstract: A method includes determining, based on a first packet error rate (PER) associated with a first communication data rate of data sent from a first electronic device to a second electronic device, a predicted second PER associated with a second communication data rate by increasing a value of the predicted second PER based on a first signal-to-noise ratio (SNR) sensitivity associated with the first communication data rate being less than a second SNR sensitivity associated with the second communication data rate or by decreasing the value of the predicted second PER based on the first SNR sensitivity being greater than the second SNR sensitivity. The method further includes selecting a communication data rate for communication from the first electronic device to the second electronic device based at least in part on the first PER and the predicted second PER.
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公开(公告)号：US20170273100A1
公开(公告)日：2017-09-21
申请号：US15074552
申请日：2016-03-18
Applicant: QUALCOMM Incorporated
Inventor： Xiaolong Huang , Chao Zou , Srinivas Katar , Hao Zhu , James Simon Cho , Alireza Raissinia
CPC classification number: H04W72/1263 , H04W72/1252 , H04W74/08 , H04W74/0808
Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may win access to an unlicensed frequency channel for a transmission opportunity. For the transmission opportunity, the AP may dynamically schedule a duration of time to be used for uplink transmissions and a duration of time to be used for downlink transmissions. The schedule may be based on a comparison of values for a parameter monitored by the AP. The parameter may be monitored for uplink traffic and for downlink traffic. The parameter may indicate the latency experienced by each direction of traffic, or an intolerance of each direction of traffic to delay. The AP may schedule the uplink and downlink durations to compensate for the discrepancy in latency between the two directions of traffic.
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公开(公告)号：US09762496B2
公开(公告)日：2017-09-12
申请号：US14629485
申请日：2015-02-23
Applicant: QUALCOMM Incorporated
IPC: H04L12/851 , H04B3/54 , H04L12/28 , H04L12/801 , H04J3/16
CPC classification number: H04L47/2433 , H04B3/54 , H04B3/542 , H04B3/544 , H04B2203/5408 , H04J3/1682 , H04L12/2838 , H04L47/13 , H04L47/24 , H04L2012/2843
Abstract: A slotted message access protocol can be implemented for transmitting short packets. Each beacon period may be divided into multiple time slots. At least one time slot may be assigned to a network device per beacon period based, at least in part, on latency specifications of packets that the network device is configured to transmit. In one example, some of the unassigned time slots may be designated as contention-based time slots. Network devices may contend with each other to gain control of and transmit packets during a contention-based time slot based on the priority level of the packets to be transmitted. Network devices may also use an encryption key and an initialization vector for securely exchanging short packets. Furthermore, a repeater network device may be designated to retransmit a packet, received from an original transmitting network device, during a communication time slot assigned to the original transmitting network device.
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公开(公告)号：US20170079044A1
公开(公告)日：2017-03-16
申请号：US14850266
申请日：2015-09-10
Applicant: QUALCOMM Incorporated
Inventor： Hao Zhu , Srinivas Katar
IPC: H04W72/04
CPC classification number: H04W72/04 , H04W72/005 , H04W72/0406 , H04W72/082
Abstract: A method for resource allocation includes determining, based on topology information, resource compatibility between a first basic service set (BSS) and a second BSS. The method also includes, in response to determining the first BSS and the second BSS are incompatible, assigning a first device the first BSS to a first group of devices and assigning a second device of the second BSS to a second group of devices. The method further includes allocating a communication resource between multiple groups of devices, the multiple groups including the first group and the second group.
Abstract translation: 一种用于资源分配的方法包括基于拓扑信息来确定第一基本服务集（BSS）和第二BSS之间的资源兼容性。 该方法还包括响应于确定第一BSS而第二BSS不兼容，将第一设备将第一BSS分配给第一组设备并将第二BSS的第二设备分配给第二组设备。 该方法还包括在多个设备组之间分配通信资源，所述多个组包括第一组和第二组。
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公开(公告)号：US09445361B2
公开(公告)日：2016-09-13
申请号：US14656517
申请日：2015-03-12
Applicant: QUALCOMM Incorporated
Inventor： James Gerard Zyren , Srinivas Katar , Manjunath Anandarama Krishnam , Lawrence Winston Yonge, III
CPC classification number: H04W48/18 , B60L11/1838 , G06F1/26 , G06F1/3203 , H04H20/71 , H04L12/10 , H04W52/18
Abstract: A first client may establish a power charging association with one of a plurality of service agents over a network. The first client transmits a first signal via a first attachment point of a powerline network, the first signal associated with requesting the power charging association. The first client broadcasts a sounding message via the first attachment point after transmitting the first signal, wherein the sounding message is receivable by one or more service agents including at least a first service agent of the powerline network. The first service agent received the sounding message with a lowest attenuation of the one or more service agents that received the sounding message. The power charging association is established between the first client and the first service agent.
Abstract translation: 第一客户端可以通过网络与多个服务代理之一建立功率计费关联。 第一客户端经由电力线网络的第一附接点发送第一信号，第一信号与请求电力充电关联相关联的第一信号。 第一客户端在发送第一信号之后经由第一附接点广播发声消息，其中，所述探测消息可由包括所述电力线网络的至少第一服务代理的一个或多个服务代理接收。 第一服务代理接收到接收到发声消息的一个或多个服务代理的衰减最小的探测消息。 在第一客户端和第一服务代理之间建立功率计费关联。
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