公开(公告)号：US10772103B1

公开(公告)日：2020-09-08

申请号：US16380035

申请日：2019-04-10

Applicant: Sprint Spectrum LP

Inventor： Sreekar Marupaduga ,  Rajveen Narendran

IPC: H04W72/04 ,  H04B7/0452

Abstract: Allocating resources in a wireless network utilizing SU-MIMO and MU-MIMO modes of operation includes determining an increase in a resource usage of MU-MIMO wireless devices and responsive to the determining, reducing an allocation of resources for one or more SU-MIMO wireless devices. These operations may be performed based on determining that a load level associated with a serving access node rises to meet a threshold.

公开(公告)号：US10735949B1

公开(公告)日：2020-08-04

申请号：US15972493

申请日：2018-05-07

Applicant: Sprint Spectrum LP

Inventor： Raymond Emilio Reeves ,  Dwight Inman

IPC: H04W8/24 ,  H04W92/04 ,  H04W84/04

Abstract: A system for updating a preferred nodes list for a wireless device in a wireless network includes a server in communication with a plurality of nodes each configured to deploy a radio air interface to provide wireless services to wireless devices. The server includes a processor configured to instruct, in response to a trigger, a first node to send a message to a wireless device connected to the first node. The message instructs the wireless device to contact the server for an updated preferred nodes list. The processor receives a request for the updated preferred nodes list from the wireless device, and provides the updated preferred nodes list to the wireless device. The updated preferred nodes list enables the wireless device to change from connecting to the first node included in the preferred nodes list to connecting to a second node included in the updated preferred nodes list.

公开(公告)号：US10548063B1

公开(公告)日：2020-01-28

申请号：US14950432

申请日：2015-11-24

Applicant: Sprint Spectrum LP

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

IPC: H04W48/06 ,  H04W72/12 ,  H04W24/08 ,  H04W36/38 ,  H04W76/18 ,  H04W76/10 ,  H04W76/34

Abstract: A wireless device or UE is configured to function as a relay on behalf of a donor access node. The relay UE performs call admission controls including balancing the resources of the relay access node with the resources provided by the donor access node providing services to end UEs via the relay access node, i.e. a backhaul connection of the relay UE. The backhaul throughput is compared to a throughput requirement of the end UEs being served by the relay UE. If the throughput requirement is larger than the backhaul throughput, any new connection requests from an additional end UE may be rejected. A threshold may be defined to ensure that there are ample resources at the backhaul prior to accepting connection requests from additional end UEs.

公开(公告)号：US10455583B1

公开(公告)日：2019-10-22

申请号：US16015715

申请日：2018-06-22

Applicant: Sprint Spectrum LP

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

IPC: H04W72/04 ,  H04B7/0452

Abstract: Allocating resources in a wireless network includes monitoring usage of each of a control channel and a data channel, determining that at least the usage of the data channel exceeds a capacity of the data channel, determining a usage of each of the control channel and the data channel operating in MU-MIMO mode, determining that the usage of the control channel in the MU-MIMO mode exceeds a first capacity of the control channel, determining a usage of each of the control channel and the data channel operating in both the MU-MIMO mode and an enhanced control mode, and adjusting a size of the portion of resources of the data channel allocated for control information upon determining that the second usage of one of the control channel or the data channel exceeds a second capacity of one of the control channel or the data channel.

公开(公告)号：US10397831B1

公开(公告)日：2019-08-27

申请号：US15138235

申请日：2016-04-26

Applicant: Sprint Spectrum LP

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

IPC: H04W28/08 ,  H04W72/04 ,  H04L5/14

Abstract: Systems and methods are described for load balancing between frequency bands based on bandwidth capacity. A load for a first frequency band and a load for a second frequency band may be determined, wherein a cell communicates with wireless devices over the first and second frequency bands. The determined loads may be adjusted based on a channel width for each frequency band and a duplexing scheme for each frequency band. And the adjusted loads may be balanced between the first frequency band and the second frequency band by instructing wireless devices in communication with the cell to change frequency bands used for communicating with the cell.

公开(公告)号：US10382077B1

公开(公告)日：2019-08-13

申请号：US15907552

申请日：2018-02-28

Applicant: Sprint Spectrum LP

Inventor： Nagi A Mansour ,  Kevin Almon Hart ,  Akin Ozozlu ,  Noman Muzaffar Alam

IPC: H04B1/04

Abstract: A system for selecting a number of transmitting ports in an antenna at an access node includes an access node configured to deploy a first radio air interface to provide wireless services to wireless devices. The access node includes an antenna having ports and configured to communicate data with wireless devices through the ports and the first radio air interface. The access node also includes a processor configured to determine a trigger for dynamically selecting a number of transmitting ports in the antenna based on data received from the wireless devices relating to changes in levels of signals received at the wireless devices. The processor is also configured to estimate an amount of change based on the data relating to the changes. The processor is further configured to select a number of transmitting ports in the antenna based on the estimated amount of change.

公开(公告)号：US10356801B1

公开(公告)日：2019-07-16

申请号：US14630810

申请日：2015-02-25

Applicant: Sprint Spectrum LP

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

IPC: H04L5/00 ,  H04B7/04 ,  H04W72/12 ,  H04W72/04

Abstract: Systems and methods are described for scheduling traffic in an almost blank subframe (ABS). Data transmissions to a wireless device in communication with a first access node are scheduled during an ABS scheduled by a second access node. At least one wireless device that meets a criteria is selected from a plurality of wireless devices in communication with the second access node. Data is transmitted from the second access node to the selected wireless device during the scheduled ABS using beamforming.

公开(公告)号：US10298313B2

公开(公告)日：2019-05-21

申请号：US15263865

申请日：2016-09-13

Applicant: Sprint Spectrum LP

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

IPC: H04B7/155 ,  H04W28/08

Abstract: Exemplary embodiments described herein include systems, methods, and nodes for selecting a donor for a relay wireless device. Signal levels corresponding to signals received at a relay wireless device from a plurality of access points are determined. Signal information is received from the plurality of access points, wherein the signal information comprises a group identification for each access point. The signal information for the access points may then be compared to a donor criteria. And the access point corresponding to the greatest signal level that also comprises signal information that meets the donor criteria may be selected as the donor for the relay wireless device.

公开(公告)号：US10178594B1

公开(公告)日：2019-01-08

申请号：US15015490

申请日：2016-02-04

Applicant: Sprint Spectrum LP

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

IPC: H04W36/16 ,  H04W36/08 ,  H04W36/00 ,  H04B7/155

Abstract: A relay wireless device is subject to a handoff procedure based on a signal strength and other features of a plurality of neighbor access nodes that are within range of the relay wireless device, and based on their ability to provide services to end-user wireless devices via the relay wireless device. A first access node obtains a plurality of features of the neighbor access nodes to enable determination of an optimal donor access node to provide services to the end-user devices via the relay wireless device. The first access node may obtain the features directly from each neighbor access node or by communicating with an EMS server. The features of the neighbor access nodes include loading information for each node. The loading information may be matched to the requirements of the relay wireless device.

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

IPC: H04W4/00 ,  H04W72/08 ,  H04W16/32 ,  H04W72/04

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.