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    Techniques for device-to-device frequency reuse in cellular networks
    1.
    发明授权
    Techniques for device-to-device frequency reuse in cellular networks 有权

    公开(公告)号：US10798660B1

    公开(公告)日：2020-10-06

    申请号：US15800527

    申请日：2017-11-01

    Applicant: Sprint Spectrum LP

    Inventor： Sanghoon Sung ,  Udit Thakore ,  Hau Tran ,  Yun Sung Kim

    IPC: H04W52/26 ,  H04L5/14 ,  H04W72/12 ,  H04W16/14 ,  H04W52/24

    Abstract: Device-to-device (D2D) transmissions by a wireless device may interfere with base station reception of other signals. To mitigate this interference, the wireless device estimates the path loss between itself and the base station. The path loss and the current D2D transmission power level are used to estimate the amount of interference the base station is experiencing as a result of the D2D transmissions from the wireless device. Based on the estimated interference experienced by the base station, the wireless device increases the robustness of the MCS being used and decreases the transmission power level by a corresponding amount. By decreasing the D2D transmission power level, less interference will be experienced by the base station. By increasing the robustness of the MCS, the impact of the reduced D2D transmission power level is mitigated.

    Dynamic handover threshold adjustment for load balancing
    2.
    发明授权
    Dynamic handover threshold adjustment for load balancing 有权

    公开(公告)号：US10433220B2

    公开(公告)日：2019-10-01

    申请号：US15241582

    申请日：2016-08-19

    Applicant: Sprint Spectrum LP

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

    IPC: H04W36/00 ,  H04W28/08 ,  H04W36/22

    Abstract: Access nodes in a network are configured to periodically measure cell loads and exchange cell load measurements with neighbors. At each access node, cell loads are compared with load thresholds, and with neighboring loads, to determine whether or not load balancing operations should be triggered. Load balancing operations include reducing or increasing an effective coverage area of one or both of the congested cell and the neighbor cell by adjusting a handover threshold parameter, such as a threshold signal level. Adjusting thresholds at a congested cell triggers more handovers from the congested cell to the non-congested cell. Similarly, adjusting thresholds at a non-congested cell prevents handovers from the non-congested cell to the congested cell.

    Neighbor access node determination
    3.
    发明授权
    Neighbor access node determination 有权
    邻居接入节点确定

    公开(公告)号：US09426715B1

    公开(公告)日：2016-08-23

    申请号：US14201727

    申请日：2014-03-07

    Applicant: Sprint Spectrum LP

    Inventor： Greg Keller ,  Yun Sung Kim

    IPC: H04W36/30 ,  H04W24/06

    CPC classification number: H04W36/0061 ,  H04W92/20

    Abstract: A first access node receives from a wireless device in communication with the first access node an identifier of a second access node detected by the wireless device. It is determined that a communication link has not previously been established between the first access node and the second access node based on the identifier. The wireless device is instructed to provide a signal level of a signal from the second access node, and when the signal level of the second access node signal meets a criteria, a communication link is established between the first access node and the second access node.

    Abstract translation: 第一接入节点从与所述第一接入节点通信的无线设备接收由所述无线设备检测到的第二接入节点的标识符。 基于标识符确定在第一接入节点和第二接入节点之前没有建立通信链路。 指示无线设备提供来自第二接入节点的信号的信号电平，并且当第二接入节点信号的信号电平满足标准时，在第一接入节点和第二接入节点之间建立通信链路。

    Systems and methods for load balancing in a wireless communication network
    5.
    发明授权
    Systems and methods for load balancing in a wireless communication network 有权

    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.

    Systems and methods for load balancing between frequency bands based on bandwidth capacity
    9.
    发明授权
    Systems and methods for load balancing between frequency bands based on bandwidth capacity 有权

    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.

    Wireless user equipment RF relay management
    10.
    发明授权
    Wireless user equipment RF relay management 有权

    公开(公告)号：US10075217B1

    公开(公告)日：2018-09-11

    申请号：US14970875

    申请日：2015-12-16

    Applicant: Sprint Spectrum LP

    Inventor： Sanghoon Sung ,  Udit Thakore ,  Pinal Tailor ,  Yun Sung Kim

    IPC: H04B7/00 ,  H04B7/026 ,  H04B7/155 ,  H04W88/04

    CPC classification number: H04B7/026 ,  H04B7/15507 ,  H04B7/15528 ,  H04W88/04

    Abstract: UEs capable of RF relay are enabled and disabled under certain conditions. The access node can control the on and off duration of the UE functioning as an RF relay. The access node may only enable RF relay when there is a need by another UE for the RF relay. The UEs selected to relay (or to not relay) may be selected based on their location (e.g., close to a UE that is experiencing poor signal strength). In an embodiment, the RF relay function of UEs are successively turned on by the access node. This causes these UEs to relay the access node's beacon signal. If, after a period of time, the wireless network performance is not improved, these UEs are commanded to disable their RF relays. If the wireless network performance is improved, the UE may be allowed to continue as an RF relay.

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