公开(公告)号：US10555315B1

公开(公告)日：2020-02-04

申请号：US14873546

申请日：2015-10-02

Applicant: Sprint Spectrum LP

Inventor： Nagi Mansour ,  Senthil Veeraragavan

IPC: H04W72/08 ,  H04W16/32 ,  H04W24/02 ,  H04W88/02

Abstract: Devices, systems, and methods to reduce interference in heterogeneous networks having a plurality of access nodes, such as combinations of macro cells, micro cells, pico cells, femto cells, etc. are disclosed. Interference caused in sectors of two or more access nodes that face each other is minimized by dividing a total number of resource blocks into resource block sets that are uniquely numbered and allocated across each sector of each access node. The allocation is rotated based on a different time stamp or a different starting number, or may be a random sequence of sets per access node. These independent allocations for each access node generally distribute the interference across the system, and provide better interference reduction, resulting in an increase in system capacity per sector of each cell.

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04

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.

公开(公告)号：US10433203B1

公开(公告)日：2019-10-01

申请号：US15491155

申请日：2017-04-19

Applicant: Sprint Spectrum LP

Inventor： Pratik Kothari ,  Hemanth Pawar ,  Krishna Sitaram ,  Chunmei Liu

IPC: H04W28/02 ,  H04W16/32 ,  H04W88/04

Abstract: Systems, methods, and processing nodes for providing a quality of service (QoS) to wireless devices attached to a relay access node include determining that a first amount of a first traffic type between a donor access node and a first one or more wireless devices in communication with the donor access node via the relay access node exceeds a threshold amount, and adjusting a quality of service (QoS) parameter of a wireless backhaul link between the relay access node and the donor access node from a first default QoS parameter to a new QoS parameter.

公开(公告)号：US10342021B1

公开(公告)日：2019-07-02

申请号：US15367528

申请日：2016-12-02

Applicant: Sprint Spectrum LP

Inventor： Hemanth Pawar ,  Shilpa Kowdley ,  Krishna Sitaram ,  Chunmei Liu

IPC: H04B7/06 ,  H04W72/08 ,  H04B7/0408 ,  H04W40/16

Abstract: Minimizing interference including obtaining interference measurements for transmission angles of an interference-causing side lobe of a formed beam directed towards a wireless device in a beamforming mode, and determining threshold angles wherein an operating mode of another wireless device subject to the interference is switched to from a default mode to a carrier aggregation mode utilizing a different frequency than the formed beam. Upon the transmission angle of the formed beam meeting a second threshold angle, the operating mode of the other wireless device is switched back to the default mode.

公开(公告)号：US10314061B1

公开(公告)日：2019-06-04

申请号：US15726344

申请日：2017-10-05

Applicant: Sprint Spectrum LP

Inventor： Sunyong Park

IPC: H04W4/00 ,  H04W72/12 ,  H04W4/06

Abstract: Systems and methods are described for performing a group call using a data bearer. At a core network in communication with an access node, a request to establish a group call may be received. A multicast data bearer may be established with the access node such that group call data from the core network is communicated over the multicast data bearer to the access node. Group call data may be communicated between the access node and a first wireless device and the access node and a second wireless device, wherein downlink group call data from the core network for both the first wireless device and the second wireless device is transmitted to the access node over the multicast data bearer.

公开(公告)号：US10313947B1

公开(公告)日：2019-06-04

申请号：US15716935

申请日：2017-09-27

Applicant: Sprint Spectrum LP

Inventor： Sanghoon Sung ,  Pinal Tailor ,  Dhaval Mehta ,  Yun Sung Kim

IPC: H04W36/22 ,  H04W24/08 ,  H04L12/26

Abstract: Systems and methods are described for handoff of a wireless device. A total delay budget may be configured to a first access node. Scheduler delays associated with each of multiple scheduling buffers can be measured. An average scheduling delay for multiple wireless devices may be calculated based on the measured scheduler delays. The average scheduling delay may be compared to the total delay budget for the first access node and, when the average scheduling delay exceeds the total delay budget, a second access node may be selected for offload of at least one wireless device of the multiple wireless devices.

公开(公告)号：US10299145B1

公开(公告)日：2019-05-21

申请号：US15343448

申请日：2016-11-04

Applicant: Sprint Spectrum LP

Inventor： Sanghoon Sung ,  Dhaval Mehta ,  Udit Thakore

IPC: H04W24/02 ,  H04W72/04 ,  H04L25/08 ,  H04W72/08 ,  H04L27/26

Abstract: Systems and methods are described for mitigating interference from neighbors. Interference may be monitored at a first access node, wherein the monitoring includes detecting an interference pattern over at least two monitored subframes. The interference pattern may be analyzed to identify one or more interference sources, wherein a first interference pattern indicates interference caused by a neighboring access node and a second interference pattern indicates interference caused by one or more wireless devices communicating with a neighboring access node. The identified interference sources may be instructed to adjust transmissions based on the monitored interference.

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.

公开(公告)号：US10291541B1

公开(公告)日：2019-05-14

申请号：US14801044

申请日：2015-07-16

Applicant: Sprint Spectrum LP

Inventor： Sanghoon Sung ,  Tri Duong ,  Udit Thakore ,  Yu Wang

IPC: H04W72/12 ,  H04L12/925 ,  H04L12/823

Abstract: Systems and methods are described for scheduling transmissions from an access node in a communication network. A plurality of data packets may be received at a buffer of an access node. A discard timer may be started on receipt of the data packets. When the discard packet timer expires, a number of data packets in the buffer and an associated aggregated queuing delay may be determined. The aggregated queuing delay may be compared to target block error rate (BLER). The target BLER may be modified when the aggregated queuing delay and the number of data packets exceed a target threshold. Data packets may be transmitted from the access node using the modified BLER.

公开(公告)号：US10236965B1

公开(公告)日：2019-03-19

申请号：US15284687

申请日：2016-10-04

Applicant: Sprint Spectrum LP

Inventor： Krishna Sitaram ,  Chunmei Liu ,  Hemanth Pawar ,  Pratik Kothari

IPC: H04B7/06 ,  H01Q21/00 ,  H04L5/00 ,  H01Q1/24

Abstract: According to exemplary embodiments described herein, communicating via a plurality of antennae includes transmitting different data streams from each of a first antenna and a second antenna in a first transmission mode, and transmitting identical data streams from a third antenna and one of the first and second antennae in a second transmission mode. The first and second antennae are horizontally stacked relative to each other and the third antenna is vertically stacked relative to both the first and second antennae.