公开(公告)号：US09723535B1

公开(公告)日：2017-08-01

申请号：US14536908

申请日：2014-11-10

Applicant: Sprint Spectrum L.P.

Inventor： Sreekar Marupaduga ,  Gauravpuri Goswami ,  Andrew M. Wurtenberger ,  Patrick J. Schmidt

IPC: H04W36/00 ,  H04W36/32 ,  H04W36/08 ,  H04W36/38 ,  H04W36/14 ,  H04W36/22

CPC classification number: H04W36/22 ,  H04W36/0083 ,  H04W36/14

Abstract: Systems and methods for performing UE handover based on group delay variation include a base station (i) selecting a target neighbor sector from a plurality of neighbor sectors for the handover, where each neighbor sector has a group delay metric, and where the target neighbor sector is selected from the neighbor sectors based at least in part on each neighbor sector's group delay variation and (ii) initiating handover of the UE to the target neighbor sector. Some embodiments include creating a neighbor relations table (NRT) comprising at least some of the neighbor sectors, and prioritizing the NRT based on group delay and/or group delay variation. In some embodiments, selection of the target neighbor sector for the handover is additionally based on neighbor sector handover success rates and Reference Signal Receive Power (RSRP) values for neighbor sectors reported by the UE for which the handover is to be performed.

公开(公告)号：US10021691B1

公开(公告)日：2018-07-10

申请号：US14475709

申请日：2014-09-03

Applicant: Sprint Spectrum L.P.

Inventor： Sreekar Marupaduga ,  John W. Prock ,  Andrew M. Wurtenberger ,  Gauravpuri Goswami

IPC: H04W72/00 ,  H04W72/04 ,  H04B7/14

CPC classification number: H04W72/0453 ,  H04B7/14 ,  H04B7/15542 ,  H04L5/0007 ,  H04L5/0039 ,  H04L5/0064

Abstract: Systems and methods for allocating frequencies based on group delay variation considerations include a base station that operates in a frequency range comprising a first set of frequency groups and a second set of frequency groups, where frequency groups of the first set are less susceptible to group delay variation based impairments than the frequency groups of the second set. In response to a requirement to transmit data between the base station and a particular UE, the base station determines whether the particular UE is receiving wireless service directly from the base station or via a relay associated with the base station, and when the particular UE is receiving wireless service via the relay, the base station allocates one or more frequency groups from the first set of frequency groups to use for transmitting data between the base station and the particular UE to satisfy the requirement.