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公开(公告)号：US10153970B2
公开(公告)日：2018-12-11
申请号：US14948668
申请日：2015-11-23
Applicant: QUALCOMM Incorporated
Inventor： Nachiappan Valliappan , Ahmed Kamel Sadek
Abstract: Systems and methods for co-existence between wireless Radio Access Technologies (RATs) employing channel reservation on a shared communication medium are disclosed. One or more channel reservation messages defined for a first RAT may be received to reserve the communication medium for a reservation duration, with the communication medium comprising a plurality of component channels. A first component channel may be determined among the plurality of component channels to be protected for operation of a second RAT in accordance with the one or more channel reservation messages. Communication via the first RAT may nevertheless proceed on a second component channel among the plurality of component channels during the reservation duration.
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公开(公告)号：US10110337B2
公开(公告)日：2018-10-23
申请号：US15221294
申请日：2016-07-27
Applicant: QUALCOMM Incorporated
Inventor： Mohammad Naghshvar , Ahmed Kamel Sadek , Nachiappan Valliappan
IPC: H04J11/00 , H04L29/06 , H04L12/801 , H04L5/00 , H04B17/318 , H04B17/336 , H04W74/08 , H04W40/24 , H04W16/32 , H04W84/12 , H04W28/14 , H04W16/14
Abstract: Aspects for reducing interference between networks are provided. A signal transmitted by one or more devices in a first network over a communications medium using an unlicensed frequency spectrum is decoded to determine one or more parameters of a packet in the signal. A level of utilization of the communications medium by the one or more devices in the first network can be estimated based at least in part on a signal strength of the signal and the one or more parameters. A period of time for communicating in a second network over the communications medium using the unlicensed frequency spectrum can be adjusted based at least in part on the level of utilization of the communications medium by the first network. In addition, a number of active transmitters over the communications medium can be determined based at least in part on identifying a source entity related to transmission of the signal, and adjusting the time for communicating in the second network can be further based at least in part on the number of active transmitters.
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公开(公告)号：US20180295622A1
公开(公告)日：2018-10-11
申请号：US15791161
申请日：2017-10-23
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Kamel Sadek , Tamer Kadous
Abstract: Techniques are described herein to selectively protect some resources of a transmission opportunity, but not all resources of a transmission opportunity. A base station may schedule resources to be used to communicate data with a user equipment (UE). To indicate to potential interference sources, a silencing message may broadcast to other network entities. The silencing message may include an indication of resources to be protected for a transmission between the base station and the UE. The silencing message may indicate a subset of resources that is less than a set of all resources of a transmission opportunity. In some examples, the silencing message may indicate a subset of frequency subbands of the transmission opportunity. In response to the silencing message, potential interference sources may refrain from communicating data during the indicated subset of resources.
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公开(公告)号：US10091789B2
公开(公告)日：2018-10-02
申请号：US15240678
申请日：2016-08-18
Applicant: QUALCOMM Incorporated
Inventor： Nachiappan Valliappan , Ahmed Kamel Sadek , Peter Gaal , Tamer Adel Kadous , Andrei Dragos Radulescu
Abstract: Techniques for managing re-contention on a shared communication medium are disclosed. In order to facilitate re-contending for access to the communication medium, an access point may adjust one or more uplink transmission parameters associated with a triggering condition for invoking a contention timer. In addition or as an alternative, the access point may mute transmission on the communication medium during one or more symbol periods designated for transmission. In addition or as an alternative, the access point may configure a timing advance to create a re-contention gap.
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公开(公告)号：US20170272955A1
公开(公告)日：2017-09-21
申请号：US15074971
申请日：2016-03-18
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Kamel Sadek , Rahul Malik , Sameer Vermani , Didier Johannes Richard van Nee
IPC: H04W16/14
CPC classification number: H04W16/14 , H04B7/0452 , H04B7/0617 , H04L1/0001
Abstract: Methods, systems, and devices for wireless communication are described. A device using a first radio access technology (RAT) to communicate over an unlicensed radio frequency spectrum band may identify a communication pattern for a transmission using a second RAT over the unlicensed radio frequency spectrum band. The identification may be based at least in part on signaling received by the device. The device may determine, based at least in part on the communication pattern, a time period for attempting to transmit the unlicensed radio frequency spectrum band using the first RAT.
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Patent Agency Ranking
96.发明授权公开(公告)号：US09756679B2
公开(公告)日：2017-09-05
申请号：US14680465
申请日：2015-04-07
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Kamel Sadek
CPC classification number: H04W76/048 , H04W16/14 , H04W72/1215 , H04W72/1289 , H04W74/0808 , H04W76/16 , H04W76/28 , H04W84/045 , H04W88/06 , H04W88/10
Abstract: Systems and methods for Discontinuous Reception (DRX)-aware Carrier Sense Adaptive Transmission (CSAT) communication in shared spectrum are disclosed. An access point, for example, may receive signals via a medium in accordance with a first RAT, and identify utilization of the medium associated with the first RAT based on the received signals. Based on the identified utilization of the medium, operation of a second RAT may be cycled between activated and deactivated periods of transmission over the medium in accordance with a Time Division Multiplexing (TDM) communication pattern. A Medium Access Control (MAC) Control Element (CE) may be transmitted to an access terminal associated with the second RAT to activate or deactivate the access terminal in accordance with the TDM communication pattern. The timing of the MAC CE transmission may be based on the TDM communication pattern and a DRX pattern associated with the access terminal.
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公开(公告)号：US20170093545A1
公开(公告)日：2017-03-30
申请号：US15249954
申请日：2016-08-29
Applicant: QUALCOMM Incorporated
Inventor： Tamer Adel Kadous , Chirag Sureshbhai Patel , Ahmed Kamel Sadek , Nachiappan Valliappan , Tao Luo , Alexei Yurievitch Gorokhov
CPC classification number: H04L5/0055 , H04L5/001 , H04L5/0039 , H04L5/0094
Abstract: Techniques for communication are disclosed. A method may include selecting from a subframe two or more resource elements for control signaling, wherein the subframe includes a plurality of symbol periods and each symbol period includes a plurality of resource elements, wherein the selected two or more resource elements are associated with a concurrent symbol period, and transmitting a resource allocation message to an access terminal, wherein the resource allocation message indicates that the selected two or more resource elements are allocated for control signaling.
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公开(公告)号：US09480069B2
公开(公告)日：2016-10-25
申请号：US13842657
申请日：2013-03-15
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Kamel Sadek
IPC: H04W4/00 , H04W72/08 , H04J3/16 , H04W24/10 , H04L5/00 , H04W84/12 , H04W28/18 , H04W72/02 , H04L1/00
CPC classification number: H04W72/082 , H04J3/1694 , H04L1/0026 , H04L5/0073 , H04W24/10 , H04W28/18 , H04W72/02 , H04W84/12
Abstract: Methods and apparatus are provided for receiver measurement assisted access point control. A method operable by a Wi-Fi network entity includes signaling a time to at least one station served by the Wi-Fi network entity for interference measurements. The method includes receiving interference measurements taken at the signaled time from the at least one station. The method includes tuning transmitter parameters based on the received interference measurements.
Abstract translation: 提供接收机测量辅助接入点控制的方法和装置。 Wi-Fi网络实体可操作的方法包括向Wi-Fi网络实体服务的至少一个站点发送信号以进行干扰测量。 所述方法包括从所述至少一个站接收在所述信号时间进行的干扰测量。 该方法包括基于接收的干扰测量来调谐发射机参数。
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公开(公告)号：US09445278B2
公开(公告)日：2016-09-13
申请号：US14597537
申请日：2015-01-15
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Kamel Sadek
CPC classification number: H04W16/14 , H04W72/1215 , H04W72/1252 , H04W74/0808 , H04W88/10
Abstract: Techniques for communication management between Radio Access Technologies (RATs) sharing operating spectrum in an unlicensed band of radio frequencies are disclosed. Interference may be mitigated by, for example, receiving signaling via a resource. A first RAT may be used to receive the signaling. Based on the received signaling, utilization of the resource associated with the first RAT may be identified. The identified utilization of the resource may be classified based on an attribute associated with the received signaling and a plurality of thresholds associated with the attribute. The plurality of thresholds may define different classes of utilization. Communication by a second RAT over the resource may be adapted based on the classified utilization of the resource.
Abstract translation: 公开了在无线电频率的非许可频带中共享操作频谱的无线电接入技术（RAT）之间的通信管理技术。 干扰可以通过例如经由资源接收信令来减轻。 可以使用第一RAT来接收信令。 基于接收到的信令，可以识别与第一RAT相关联的资源的利用。 可以基于与所接收到的信令相关联的属性和与该属性相关联的多个阈值来分类资源的所识别的利用。 多个阈值可以定义不同的利用类别。 可以基于资源的分类利用来适应通过资源的第二RAT的通信。
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公开(公告)号：US20160094998A1
公开(公告)日：2016-03-31
申请号：US14853294
申请日：2015-09-14
Applicant: QUALCOMM Incorporated
Inventor： Naga Bhushan , John Edward Smee , Tingfang Ji , Ahmed Kamel Sadek , Krishna Kiran Mukkavilli , Joseph Binamira Soriaga
CPC classification number: H04W16/14 , H04W24/08 , H04W74/0808 , H04W84/042
Abstract: Shared spectrum operation is disclosed for sharing spectrum among multiple wireless deployments. Coordination procedures between and among 2nd and 3rd Tier deployments include the use of beacons transmitted by the 2nd Tier for clearing access to spectrum occupied by 3rd Tier users and multiple 3rd Tier deployments sharing resources using a group-listen before talk (LBT) protocol, rather than a per-node LBT protocol. The 2nd Tier beacon signals are transmitted to alert 3rd Tier users of their presence, which, upon detection, will leave the particular spectrum within a predetermined time. For the shared LBT protocol, the 3rd Tier deployments share the channel with each other through an LBT with random backoff, in which the start time of clear channel assessment (CCA) procedure and the random backoff values are synchronized among nodes of the same deployment.
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