公开(公告)号：US20170230880A1

公开(公告)日：2017-08-10

申请号：US15017822

申请日：2016-02-08

Applicant: Sprint Spectrum LP

Inventor： Siddharth OROSKAR ,  Jasinder SINGH ,  Rajil MALHOTRA ,  Nitesh MANCHANDA

IPC: H04W36/22 ,  H04W76/04 ,  H04L12/26 ,  H04W36/30 ,  H04W28/02

CPC classification number: H04W36/22 ,  H04L43/16 ,  H04W28/0205 ,  H04W28/0289 ,  H04W28/08 ,  H04W36/30 ,  H04W76/27

Abstract: Upon a determination that a relay backhaul link of a relay node is using excessive resources of a donor access node, wireless devices attached to the relay node are offloaded to other access nodes such as neighbor access nodes or to a different frequency band deployed by the donor access node or its neighbors. A donor access node transmits a congestion indicator to the relay node. The relay node transmits updated measurement parameters to end-user wireless devices connected thereto. An end-user wireless device reports back to the relay node in the event it measures a signal strength that is stronger than the current signal strength. This measurement event triggers a handoff of the end-user wireless device, thereby helping to alleviate the resource utilization of the air-interface of the donor access node.

公开(公告)号：US09692581B1

公开(公告)日：2017-06-27

申请号：US14611312

申请日：2015-02-02

Applicant: Sprint Spectrum LP

Inventor： Yun Sung Kim ,  Sanghoon Sung ,  Pinal Tailor ,  Tri Duong

IPC: H04W4/00 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04L5/0073 ,  H04L5/0005 ,  H04L5/0032 ,  H04W56/001

Abstract: Systems and methods are described for generating a common subframe pattern in a wireless communication network. Frame numbers associated with a plurality of access nodes operating on the same frequency channel in a coverage area are synchronized. A unique almost blank subframe (ABS) ratio associated with each of the plurality of access nodes is determined. A common subframe pattern may be generated based on the determined unique ABS ratios. The common subframe pattern may be provided to each of the plurality of access nodes operating in the coverage area. Traffic may be scheduled using the generated common subframe pattern and the synchronized frame numbers.

公开(公告)号：US09668180B1

公开(公告)日：2017-05-30

申请号：US14476858

申请日：2014-09-04

Applicant: Sprint Spectrum LP

Inventor： Daniel Vivanco ,  Chunmei Liu ,  Hemanth Pawar ,  Krishna Sitaram

IPC: H04W36/00

CPC classification number: H04W36/0083 ,  H04W24/02

Abstract: Systems and methods are described for identifying and resolving cell identifier confusion in a wireless network. A serving cell may determine that multiple neighboring cells have a duplicate cell identifier. The serving cells may receive signal measurement reports and network characteristics for the neighboring cells in order to determine if there is an opportunity for handover between the neighboring cells and the serving cell. If the multiple neighboring cells appear in a single signal measurement report from a single wireless device, there this is an opportunity for handover, and one of the neighboring cells may be instructed to change its cell identifier. However, the network characteristics indicate that the neighboring cell does not have coverage sector overlap, then there is no opportunity for handover and the neighboring cell may be removed from a database used by the serving cell during a handover process.

公开(公告)号：US09660735B1

公开(公告)日：2017-05-23

申请号：US14856960

申请日：2015-09-17

Applicant: Sprint Spectrum LP

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

IPC: H04W72/04 ,  H04B1/10 ,  H04B15/00 ,  H04L12/26 ,  H04W36/20

CPC classification number: H04B15/00 ,  H04W36/20 ,  H04W72/046 ,  H04W72/082

Abstract: Systems and methods are also described for mitigating interference at an access node. It may determined, based on an interference metric for a first wireless device exceeding an interference criteria, that communication between the first wireless device and a cell of an access node is experiencing interference from a neighboring cell. At least one neighboring cell in which one or more beamformed signals are transmitted is identified as a potential interference source. The identified neighboring cell may be instructed to terminate transmission of a beamformed signal to at least a second wireless device. It may then be determined whether the interference metric for the first wireless device continues to exceed the interference criteria after the termination of the beamformed signal. And the second wireless device may be identified as an interference source when the interference metric for the first wireless device does not continue to exceed the interference criteria.

公开(公告)号：US09614651B1

公开(公告)日：2017-04-04

申请号：US14162623

申请日：2014-01-23

Applicant: Sprint Spectrum LP

Inventor： Daniel Vivanco ,  Krishna Sitaram

IPC: H04W24/02 ,  H04L5/00

CPC classification number: H04L5/0032 ,  H04L5/0035

Abstract: When a first throughput between the wireless device and a first access node meets a threshold, an application requirement of an application running on the wireless device is determined. Measurements are received of a first signal level of the communication link between the wireless device and the first access node and a second signal level of a signal from a second access node received at the wireless device. A first data rate is estimated using a first communication scheme between the wireless device and the first and second access nodes, and a second data rate is estimated using a second communication scheme between the wireless device and the first and second access nodes. One of the communication schemes is selected for use by the wireless device and the first and second access nodes based on the estimated first data rate and the estimated second data rate and the application requirement.

公开(公告)号：US09544097B1

公开(公告)日：2017-01-10

申请号：US13971435

申请日：2013-08-20

Applicant: Sprint Spectrum LP

Inventor： Daniel Vivanco ,  Krishna Sitaram

IPC: H04L1/08 ,  H04L12/18

CPC classification number: H04L1/08 ,  H04L12/1868 ,  H04L12/189

Abstract: Systems and methods for operating a wireless communication system are provided. An access node can receive a multimedia broadcast multicast services data flow. The data flow can comprise a first data packet and a second data packet where the first data packet comprises a first transmission time and the second data packet comprises a second transmission time. The data flow can be stored in a buffer of the access node. The first data packet can be transmitted from the access node to a wireless device at the first transmission time and the access node can receive a retransmission request to retransmit the first data packet. The access node can determine an anticipated packet retransmission time based on when the access node received the request to retransmit the first data packet. The access node can retransmit the first data packet to the wireless device based on the anticipated packet retransmission time.

Abstract translation: 提供了用于操作无线通信系统的系统和方法。 接入节点可以接收多媒体广播多播服务数据流。 数据流可以包括第一数据分组和第二数据分组，其中第一数据分组包括第一传输时间，第二数据分组包括第二传输时间。 数据流可以存储在接入节点的缓冲区中。 第一数据分组可以在第一传输时间从接入节点传输到无线设备，并且接入节点可以接收重传请求以重传第一数据分组。 接入节点可以基于接入节点何时接收到重发第一数据分组的请求来确定预期的分组重传时间。 接入节点可以基于预期的分组重传时间将第一数据分组重传到无线设备。

公开(公告)号：US09503948B1

公开(公告)日：2016-11-22

申请号：US14196984

申请日：2014-03-04

Applicant: Sprint Spectrum LP

Inventor： Daniel Vivanco ,  Krishna Sitaram

IPC: H04W36/08 ,  H04W28/08 ,  H04W72/02 ,  H04W24/00

CPC classification number: H04W36/08 ,  H04W24/00 ,  H04W28/08 ,  H04W36/06 ,  H04W36/22 ,  H04W72/02

Abstract: First data packets for a wireless device are received from a data source at a network element, and are encoded into at least one second data packet using a data redundancy factor, where the at least one second data packet comprising at least two of the first data packets. The at least one second data packet is provided to an access node and is sent from the access node to the wireless device over a first frequency band. A round trip time of at least one of the first data packets is determined at the data source, and further a frequency band load of the first frequency band is determined. A handover is performed of the wireless device from the first frequency band to a second frequency band based on the round trip time and the frequency band load of the first frequency band.

Abstract translation: 从网元的数据源接收用于无线设备的第一数据分组，并且使用数据冗余因子将其编码为至少一个第二数据分组，其中所述至少一个第二数据分组包括至少两个第一数据 数据包 将至少一个第二数据分组提供给接入节点，并通过第一频带从接入节点发送到无线设备。 在数据源处确定至少一个第一数据分组的往返时间，并且还确定第一频带的频带负载。 基于往返时间和第一频带的频带负载，从无线设备执行从第一频带到第二频带的切换。

公开(公告)号：US09485702B1

公开(公告)日：2016-11-01

申请号：US13875131

申请日：2013-05-01

Applicant: Sprint Spectrum LP

Inventor： Aik Chindapol ,  Chunmei Liu ,  Muhammad Naim ,  Yu Zhou

IPC: H04W36/30

CPC classification number: H04W36/30

Abstract: In systems and methods of wireless device communication using carrier priority, it is determined for a wireless device using a lower priority carrier that a signal strength of a higher priority carrier meets a signal strength criteria. It is further determined that a loading of the higher priority carrier meets a loading criteria. When the loading meets the loading criteria and the signal strength meets the signal strength criteria, a handover is performed of the wireless device from the lower priority carrier to the higher priority carrier.

Abstract translation: 在使用载波优先级的无线设备通信的系统和方法中，对于使用较低优先级载波的无线设备确定较高优先级载波的信号强度满足信号强度标准。 进一步确定较高优先级载体的加载满足加载标准。 当加载满足加载标准并且信号强度满足信号强度标准时，从低优先级载波到较高优先级载波执行无线设备的切换。

公开(公告)号：US09479906B1

公开(公告)日：2016-10-25

申请号：US14135448

申请日：2013-12-19

Applicant: Sprint Spectrum LP

Inventor： Kafi Hassan ,  Nawara Owary ,  Nagi Mansour

IPC: H04W4/08 ,  H04W60/00

CPC classification number: H04W4/08 ,  H04W60/00

Abstract: A wireless device is determined to be in communication with a first access node is at a location in a coverage area of a first communication network, and it is determined whether the wireless device is in communication with the first access node using a first radio access technology or a second radio access technology. The availability of the first r and the second radio access technologies from the first communication network are determined, and the wireless device is permitted to register with the PTT communication system when the wireless device is in communication with the access node using the first radio access technology. Further, the wireless device is prevented from registering with the PTT communication system when the wireless device is in communication with the access node using the second radio access technology and the first radio access technology is available for the wireless device.

Abstract translation: 确定与第一接入节点通信的无线设备位于第一通信网络的覆盖区域中的位置，并且使用第一无线电接入技术确定无线设备是否与第一接入节点通信 或第二无线电接入技术。 确定来自第一通信网络的第一r和第二无线电接入技术的可用性，并且当无线设备使用第一无线电接入技术与接入节点通信时，允许无线设备向PTT通信系统注册 。 此外，当无线设备使用第二无线电接入技术与接入节点进行通信并且第一无线接入技术可用于无线设备时，防止无线设备向PTT通信系统注册。

公开(公告)号：US09462601B1

公开(公告)日：2016-10-04

申请号：US14220832

申请日：2014-03-20

Applicant: Sprint Spectrum LP

Inventor： Yu Zhou ,  Muhammad Naim ,  Shahzada Rasool ,  Chunmei Liu

IPC: H04W72/12

CPC classification number: H04W72/1226

Abstract: A system and method of scheduling communication in a wireless communication network are provided. A scheduling scheme comprising a first subframe and a second subframe can be determined to communicate data between a first access node and first wireless devices, and a second access node and second wireless devices. A resource request can be received from one of the first wireless devices. An interference indication can be determined based on the resource request. The first access node can be instructed to communicate with the first wireless devices during the first subframe and the one of the first wireless devices can be instructed to transmit data to the first access node during the second subframe when the interference indication meets an interference criteria. The second access node can be instructed to transmit data addressed to at least one of the second wireless devices during the second subframe.

Abstract translation: 提供了一种在无线通信网络中调度通信的系统和方法。 可以确定包括第一子帧和第二子帧的调度方案以在第一接入节点和第一无线设备之间传送数据，以及第二接入节点和第二无线设备。 可以从第一无线设备之一接收资源请求。 可以基于资源请求来确定干扰指示。 可以指示第一接入节点在第一子帧期间与第一无线设备进行通信，并且当干扰指示满足干扰标准时，可以指示第一无线设备中的第一无线设备在第二子帧期间向第一接入节点发送数据。 可以指示第二接入节点在第二子帧期间发送寻址到至少一个第二无线设备的数据。