公开(公告)号：US10045346B1

公开(公告)日：2018-08-07

申请号：US15225952

申请日：2016-08-02

Applicant: Sprint Spectrum L.P.

Inventor： Sreekar Marupaduga ,  Andy M. Wurtenberger ,  Rajveen Narendran ,  Ryan P. Dreiling

IPC: H04W4/00 ,  H04W72/04 ,  H04L12/26 ,  H04W4/02 ,  H04M7/00

Abstract: Disclosed are methods and systems for selecting a carrier on which to serve a user equipment device (UE). In particular, a base station may determine that a speed of movement of the UE is threshold high. In response to determining that the speed of movement of the UE is threshold high, the base station may select a carrier based on a group delay variation (GDV) of the selected carrier. For example, the base station may respond to the determining by selecting a carrier having a threshold low GDV. In another example, the base station may respond to the determining by selecting the carrier having the lowest GDV among two or more candidate carriers being considered as part of the selection process. As such, once a carrier is selected, the base station may then serve the UE on the selected carrier.

公开(公告)号：US09414286B1

公开(公告)日：2016-08-09

申请号：US14739741

申请日：2015-06-15

Applicant: Sprint Spectrum L.P.

Inventor： Siddharth S. Oroskar ,  Sreekar Marupaduga ,  Ryan P. Dreiling ,  Saravana Velusamy

IPC: H04W36/24 ,  H04W72/08 ,  H04W36/00

CPC classification number: H04W36/0083 ,  H04W72/082

Abstract: According to aspects of the present disclosure, a method and system are provided for managing handover. In accordance with the disclosure, while a source base station serves a UE, the source base station receives from the UE a measurement report providing an indication of a plurality of candidate target base stations having coverage detected by the UE. Responsive to the report, a CSI reporting rate is determined for each of the candidate targets on a per base station basis. A channel coherence is also determined for the UE. The communication system then selects a target base station from the plurality of candidate targets based on (i) the determined channel coherence and (ii) the determined CSI reporting rates, and the source base station then triggers handover of the UE from the source base station to the selected target base station.

Abstract translation: 根据本公开的方面，提供了一种用于管理切换的方法和系统。 根据本公开，当源基站服务于UE时，源基站从UE接收测量报告，该测量报告提供具有由UE检测到的覆盖的多个候选目标基站的指示。 响应于该报告，基于每个基站确定每个候选目标的CSI报告率。 还针对UE确定信道相干性。 通信系统然后基于（i）确定的信道相干性和（ii）所确定的CSI报告速率从多个候选目标中选择目标基站，然后源基站触发UE从源基站的切换 到所选择的目标基站。

公开(公告)号：US09088934B1

公开(公告)日：2015-07-21

申请号：US13849996

申请日：2013-03-25

Applicant: Sprint Spectrum L.P.

Inventor： Siddharth S. Oroskar ,  Ryan P. Dreiling

IPC: H04W4/00 ,  H04W48/16

CPC classification number: H04W48/16 ,  H04W48/20

Abstract: Disclosed is a method and corresponding apparatus for management of access probe transmission from a wireless communication device (WCD) to a radio access network (RAN). The WCD determines that a particular coverage area is not the strongest coverage area detected by the WCD, and the WCD responsively transmits an access probe to the RAN in that particular coverage area. For instance, the WCD may define a sequence of access probe transmissions including at least one transmission to just a coverage area that the WCD deems to not be the strongest and further including at least one transmission to just a coverage area that the WCD deems to be the strongest.

Abstract translation: 公开了一种用于管理从无线通信设备（WCD）到无线电接入网络（RAN）的接入探测传输的方法和相应的设备。 WCD确定特定覆盖区域不是由WCD检测到的最强覆盖区域，并且WCD在该特定覆盖区域中响应地将接入探测发送到RAN。 例如，WCD可以定义一系列接入探测传输，其包括至少一个传输到WCD认为不是最强的覆盖区域，并且进一步包括至少一个传输到WCD认为是的覆盖区域 最强