公开(公告)号：US10028260B1

公开(公告)日：2018-07-17

申请号：US14709766

申请日：2015-05-12

Applicant: Sprint Spectrum LP

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

IPC: H04B7/14 ,  H04W72/04 ,  H04W28/02 ,  H04W74/08 ,  H04W76/02 ,  H04W76/14 ,  H04W88/04 ,  H04W92/10

Abstract: A wireless device is configured to function as a relay on behalf of a donor access node. The wireless device requests to send a buffer status report to the donor access node. The donor access node grants this request with an allocation of air-interface resources. The wireless device responds to the grant by sending a short buffer status report. This short buffer status report is associated with a logical channel group that indicates the buffer status report is communicating the status of the wireless device as a relay, and thus is not asking for additional resource allocations. The buffer size field of the short buffer status report may also, or alternatively, be used to indicate the status of the wireless device functioning as a relay, or other information such as the number of other wireless devices being relayed by the wireless device.

公开(公告)号：US10028107B1

公开(公告)日：2018-07-17

申请号：US13938070

申请日：2013-07-09

Applicant: Sprint Spectrum LP

Inventor： Daniel Vivanco ,  Krishna Sitaram

IPC: H04W4/06

Abstract: Systems and methods for operating a wireless communication system are provided. A network node can determine a number of access nodes transmitting data using a first multimedia broadcast multicast services (MBMS) mode. A number of retransmission requests received at each access node transmitting data using the first MBMS mode can be determined. At least one access node can be reconfigured to transmit data from the first MBMS mode to a second MBMS mode based on the number of retransmission requests received from each access node.

公开(公告)号：US10021616B2

公开(公告)日：2018-07-10

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 ,  H04L12/26 ,  H04W36/00 ,  H04W28/02 ,  H04W36/30 ,  H04W76/04 ,  H04W76/27

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：US09967776B1

公开(公告)日：2018-05-08

申请号：US14920547

申请日：2015-10-22

Applicant: Sprint Spectrum LP

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

IPC: H04W28/08 ,  H04W36/24 ,  H04W72/08 ,  H04W36/34 ,  H04W76/06 ,  H04W36/00

CPC classification number: H04W28/08 ,  H04W36/0055 ,  H04W76/30

Abstract: Embodiments disclosed herein provide individual idle-mode cell reselection priority lists to wireless devices dynamically, based on real-time load conditions for frequency bands deployed within a wireless network. Load equalization operations include classifying frequency bands into congested, target, or non-congested bands, grouping similar bands, comparing loads across the various bands in to a threshold, and adjusting the priority of each frequency band accordingly. The adjusted priorities are transmitted to each wireless device as the wireless device enters idle mode.

公开(公告)号：US09913283B1

公开(公告)日：2018-03-06

申请号：US14838549

申请日：2015-08-28

Applicant: Sprint Spectrum LP

Inventor： Sreekar Marupaduga ,  John W. Prock ,  Maneesh Gauba ,  Gene S. Mitchell

IPC: H04W72/08 ,  H04B7/14 ,  H04W24/02 ,  H04W72/04 ,  H04W88/08 ,  H04W24/08

CPC classification number: H04W72/085 ,  H04B7/14 ,  H04B7/15507 ,  H04B7/15542 ,  H04B7/2606 ,  H04W24/02 ,  H04W24/08 ,  H04W72/0406 ,  H04W84/047 ,  H04W88/08

Abstract: A frame configuration is assigned in a relay enabled communication network. A macro coverage latency is determined. The macro coverage latency is a latency of a communication between the wireless device and a network node when the wireless device is not communicating through the relay node. A relay coverage latency is determined. The relay coverage latency is a latency of a communication between the wireless device and the network node when the wireless device is communicating through the relay node. Based on a comparison of the macro coverage latency and the relay coverage latency, a frame configuration is selected for a communication through the relay node.

公开(公告)号：US09877204B1

公开(公告)日：2018-01-23

申请号：US14509275

申请日：2014-10-08

Applicant: Sprint Spectrum LP

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

IPC: H04W16/18 ,  H04W68/00

CPC classification number: H04W16/18 ,  H04W16/04 ,  H04W68/00 ,  H04W68/005

Abstract: Systems and methods for determining a multi-layer tracking area code assignment in a wireless communication network are disclosed. A controller node is configured assign a first code to a first group of access nodes located in a geographic area. A signal load of updates for the first group of access nodes is monitored by the communication network. The controller node determines a set of criteria for assigning a second code to at least one access node in a second group of access nodes. The second group of access nodes are located in the same geographic area as the first group of access nodes. The controller node assigns the second code to the at least one access node for a predetermined period of time.

公开(公告)号：US09859967B1

公开(公告)日：2018-01-02

申请号：US14792872

申请日：2015-07-07

Applicant: Sprint Spectrum LP

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

IPC: H04L12/50 ,  H04B7/06 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04B7/0617 ,  H04B7/0634 ,  H04L5/0048 ,  H04W72/0453

Abstract: Systems and methods are described for performing beamforming during carrier aggregation. It may be determined that conditions at an access node and a first wireless device meet a beamforming criteria, wherein the access node and the first wireless device communicate using carrier aggregation including a first frequency band comprising a primary carrier and a second frequency band comprising a component carrier. Data may be communicated between the access node and a second wireless device over the second frequency band, wherein the second wireless device is proximate to the first wireless device. Beamforming signal conditions may be determined for the first wireless device on the first frequency band and the second wireless device on the second frequency band. Beam formed signals may be transmitted to the first wireless device over the first frequency band using the beamforming signal conditions for the first wireless device and over the second frequency band using the beamforming signal conditions for the second wireless device.

公开(公告)号：US09820201B1

公开(公告)日：2017-11-14

申请号：US14939224

申请日：2015-11-12

Applicant: Sprint Spectrum LP

Inventor： Siddharth Oroskar ,  Jasinder P. Singh

IPC: H04W36/00 ,  H04W36/14 ,  H04W36/30 ,  H04W72/04 ,  H04W92/10

CPC classification number: H04W36/0072

Abstract: Systems and methods are described for performing a handover based on a target configuration. Signal information may be received, from a wireless device at a first access node, comprising a signal level for a received signal at the wireless device for a target frequency band, wherein the wireless device and the access node communicate over a source frequency band using a first subframe configuration. A second subframe configuration used by the target carrier to communicate with wireless devices may be determined. A traffic metric for the wireless device may be compared to the second subframe configuration. And, the wireless device may be instructed to perform a handover from the source frequency band to the target frequency band when the signal level meets a signal level criteria and the second subframe configuration satisfies the traffic metric.

公开(公告)号：US09814060B1

公开(公告)日：2017-11-07

申请号：US14507116

申请日：2014-10-06

Applicant: Sprint Spectrum LP

Inventor： Volkan Sevindik ,  Muhammad Ahsan Naim ,  Pei Hou ,  Yu Zhou

IPC: H04W72/12 ,  H04B7/024

CPC classification number: H04W72/1231 ,  H04B7/024 ,  H04W72/04

Abstract: Systems and methods are described for scheduling wireless resources with coordinated multipoint transmissions. It may be determined that a signal level for a wireless device in communication with an access node does not meet a signal level criteria. Based on the determination, an access node may be instructed to transmit information to the wireless device using a coordinated multipoint transmission. A number of wireless devices in communication with the access node that comprise an application requirement that meets an application requirement criteria may further be determined. Then, the access node may be instructed to schedule wireless transmissions using at least one of semi-persistent scheduling and delay based scheduling based on the determined number of the plurality of wireless devices and the instruction to transmit using the coordinated multipoint transmission.

公开(公告)号：US09813962B1

公开(公告)日：2017-11-07

申请号：US14969860

申请日：2015-12-15

Applicant: Sprint Spectrum LP

Inventor： Daniel Vivanco ,  Krishna Sitaram ,  Chunmei Liu

IPC: H04W4/00 ,  H04W36/22 ,  H04W72/04 ,  H04W4/02 ,  H04W36/32

CPC classification number: H04W36/22 ,  H04L47/28 ,  H04W4/021 ,  H04W28/0226 ,  H04W36/06 ,  H04W36/32 ,  H04W72/0453 ,  H04W72/048

Abstract: Maps of high wireless device movement and high wireless device traffic are created. These maps are correlated over selected periods of time to determine when, and where, large numbers of wireless devices are both moving and creating problematic traffic. Stationary wireless devices using an access node in the problem area are identified before the selected time period (e.g., 30 minutes before commuting time). These stationary wireless devices are handed over to a reserved frequency band. During the selected time period, wireless devices requesting access in the problem area are denied access using the reserved frequency band and are instead forced to use another frequency band.