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公开(公告)号：US10165578B1
公开(公告)日：2018-12-25
申请号：US15345798
申请日：2016-11-08
Applicant: Sprint Spectrum LP
Inventor： Luca Zappaterra , Muhammad Ahsan Naim , Yu Zhou
Abstract: Minimizing interference in a heterogeneous wireless network includes determining a group of potentially interfering access nodes from among the plurality of neighboring access nodes, based on reference signals transmitted from each of the plurality of neighboring access nodes, and communicating additional signal information between each access node within the group of potentially interfering access nodes. The additional signal information is associated with signals transmitted from said each access node within the group. Each access node within the group performs interference minimization based on the additional signal information, thereby enabling full-duplex operation.
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公开(公告)号：US10116771B2
公开(公告)日：2018-10-30
申请号：US15252431
申请日：2016-08-31
Applicant: Sprint Spectrum LP
Inventor： Luca Zappaterra , Muhammad Ahsan Naim , Yu Zhou
Abstract: Transmitting data via frame reconfiguration comprises encoding, at a source node, the data into a plurality of frame configurations, each of the plurality of frame configurations comprising a sequence of uplink and downlink subframes, and communicating, via an antenna of the source node, using the plurality of frame configurations, wherein a target node is configured to identify the plurality of frame configurations and decode the data.
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公开(公告)号：US10123346B1
公开(公告)日：2018-11-06
申请号：US15297519
申请日：2016-10-19
Applicant: Sprint Spectrum LP
Inventor： Chunmei Liu , Hemanth Pawar , Krishna Sitaram , Pratik Kothari , Yu Zhou , Muhammad Ahsan Naim , Luca Zappaterra
Abstract: Backhaul data may be communicated between an access node and a relay wireless device, wherein the relay wireless device serves as backhaul for a plurality of end-user wireless devices and a set of the plurality of the end-user wireless devices comprise a quality of service metric that meets a quality of service criteria. Wireless resources may be scheduled for the relay wireless device using semi-persistent scheduling such that wireless resources are pre-allocated for the relay wireless device based on a periodicity. And data may be transmitted according to the semi-persistent scheduling from the access node to the relay wireless device based on the periodicity, wherein data for the set of end-user wireless devices that is received at the access node between transmissions for the semi-persistent scheduling is queued such that it is transmitted to the relay wireless device at a next transmission for the semi-persistent scheduling.
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公开(公告)号：US09942893B1
公开(公告)日：2018-04-10
申请号：US14848422
申请日：2015-09-09
Applicant: Sprint Spectrum LP
Inventor： Yu Zhou , Muhammad Ahsan Naim , Luca Zappaterra
CPC classification number: H04W24/02 , H04L1/0001 , H04W28/065 , H04W72/0446
Abstract: In systems and methods for allocating physical resources in a communication system, a common periodicity of two or more allocations for a communication between a wireless device and an access node is determined. A permissible division of a data unit in at least two transmission time intervals in a single carrier within one of the two or more allocations is also determined.
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公开(公告)号：US10536977B1
公开(公告)日：2020-01-14
申请号：US15004140
申请日：2016-01-22
Applicant: Sprint Spectrum LP
Inventor： Muhammad Ahsan Naim , Yu Zhou , Luca Zappaterra
Abstract: Contention-based random access operations are enhanced by enabling wireless devices to transmit a plurality of orthogonal preambles simultaneously to an access node, thereby increasing the probability of at least one preamble being heard by the access node, and minimizing the risk of preamble collision with another wireless device. Different classes of devices may be configured to transmit different numbers of preambles, depending on a priority level for that class, for purposes such as emergency communications, real-time applications, etc. Parameters including relationships between specific priority levels, device classes, application classes, quality of service, and number of preambles permitted, may be broadcast or otherwise communicated to wireless devices by the wireless network.
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Patent Agency Ranking
公开(公告)号：US10292137B1
公开(公告)日：2019-05-14
申请号：US15291095
申请日：2016-10-12
Applicant: Sprint Spectrum LP
Inventor： Luca Zappaterra , Yu Zhou , Muhammad Ahsan Naim
IPC: H04L12/26 , H04W72/02 , H04W72/12 , H04L1/00 , H04W72/04 , H04L29/06 , H04B17/318 , H04W84/04 , H04W84/12
Abstract: Reducing latency in a wireless network includes initiating a sensing period for measuring signal indicators of a plurality of frequency channels of an unlicensed spectrum, determining that one of the plurality of frequency channels is able to sustain a traffic load, interrupting the sensing period, and scheduling one or more cellular subframes during the remainder of the sensing period using the one of the plurality of frequency channels.
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公开(公告)号：US10212729B1
公开(公告)日：2019-02-19
申请号：US15375389
申请日：2016-12-12
Applicant: Sprint Spectrum LP
Inventor： Muhammad Ahsan Naim , Yu Zhou , Luca Zappaterra
Abstract: Systems and methods are described for implicit information transfer. Neighboring access nodes may coordinate an Almost Blank Subframe (ABS) pattern for ABS transmissions. Implicit transmit symbols may be assigned to ABS′ of the ABS pattern. Traffic may be scheduled for a wireless device on at least one ABS of the ABS pattern. The neighboring access nodes may use the scheduled ABS to decode implicit information associated with the implicit transmit symbols.
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公开(公告)号：US10142070B1
公开(公告)日：2018-11-27
申请号：US15235184
申请日：2016-08-12
Applicant: Sprint Spectrum LP
Inventor： Yu Zhou , Muhammad Ahsan Naim , Luca Zappaterra
Abstract: Transmitting downlink reference signals includes transmitting a first plurality of subframes comprising a first reference signal associated with a first antenna port, the first reference signal having a first format within the first plurality of subframes, transmitting a second plurality of subframes comprising a second reference signal associated with a second antenna port, the second reference signal having a second format within the second plurality of subframes, and switching a format of each of the first and second reference signals, such that a third plurality of subframes is transmitted with the first reference signal in the second format, and a fourth plurality of subframes is transmitted with the second reference signal in the first format.
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公开(公告)号：US10009929B1
公开(公告)日：2018-06-26
申请号：US15079312
申请日：2016-03-24
Applicant: Sprint Spectrum LP
Inventor： Yu Zhou , Muhammad Ahsan Naim , Luca Zappaterra
CPC classification number: H04W74/0833 , H04L1/0001 , H04L1/1825 , H04L47/27 , H04W52/20 , H04W52/48
Abstract: Retransmission parameters are determined for a wireless device based on a desired retransmission success rate, that is, a probability that subsequent random access requests transmitted from the wireless device re-initiating a contention-based random access procedure with an access node will reach the access node. The retransmission parameters are determined based on at least a quality of service associated with the wireless device, a distance of the wireless device from the access node, and a cell load of the access node. The retransmission parameters include a retransmission power and a retransmission backoff window size. A product of the power and backoff window is scaled such that it can be equated with a retransmission success rate.
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公开(公告)号：US10117257B1
公开(公告)日：2018-10-30
申请号：US15355341
申请日：2016-11-18
Applicant: Sprint Spectrum LP
Inventor： Muhammad Ahsan Naim , Luca Zappaterra , Yu Zhou
Abstract: Estimating uplink interference includes determining any wireless devices having available uplink resources, and instructing the wireless devices to estimate and report uplink interference. A method for estimating uplink interference in a wireless network includes determining that a wireless device attached to an access node has available resources within an uplink schedule of the wireless device, and instructing the wireless device to enter a listening mode during the available resources of the uplink schedule. In the listening mode, the wireless device determines a measurement of an uplink interference caused at the wireless device. The method further includes receiving the measurement of the uplink interference from the wireless device via an uplink channel.
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