公开(公告)号：US10791487B1

公开(公告)日：2020-09-29

申请号：US15929176

申请日：2019-12-05

Applicant: Sprint Spectrum L.P.

Inventor： Sanghoon Sung ,  Yun Sung Kim ,  Hau Tran ,  Sandeep Mangrulkar

IPC: H04W36/00

Abstract: A method for controlling handover of a user equipment device (UE) between (i) a first cell site that provides dual-connectivity service on a first radio access technology (RAT) and a second RAT and (ii) a second cell site that provides standalone first-RAT service, wherein the handover includes transitioning the UE from source first-RAT service to target first-RAT service. The method includes setting a handover threshold to use as a basis to evaluate whether target first-RAT coverage detected by the UE is sufficiently stronger than source first-RAT coverage detected by the UE, where setting the handover threshold includes setting the handover threshold to a value selected based on whether the UE has detected that second-RAT coverage of the first cell site meets a defined threshold measurement threshold. Further, the method includes applying the set handover threshold as a basis to control whether to invoke the handover of the UE.

公开(公告)号：US10085197B1

公开(公告)日：2018-09-25

申请号：US15188043

申请日：2016-06-21

Applicant: Sprint Spectrum L.P.

Inventor： Nagi A. Mansour ,  Pinal Tailor ,  Sandeep Mangrulkar ,  Yun Sung Kim

IPC: H04W36/30 ,  H04L12/26 ,  H04B3/36 ,  H04L29/08 ,  H04M1/253 ,  H04W28/02 ,  H04W24/08 ,  H04W88/04 ,  H04W88/16 ,  H04W80/10

CPC classification number: H04W36/30 ,  H04B3/36 ,  H04L43/16 ,  H04L67/303 ,  H04M1/2535 ,  H04M2207/206 ,  H04W24/08 ,  H04W28/0268 ,  H04W28/0278 ,  H04W28/0289 ,  H04W36/00837 ,  H04W36/22 ,  H04W80/10 ,  H04W88/04 ,  H04W88/16

Abstract: In an example method, a donor base station determines that an air interface, over which the donor base station serves a relay-UE and plurality of second UEs, is threshold highly congested and that a relay base station is serving a threshold high number of first UEs. The relay base station is coupled to a relay-UE that provides wireless connectivity for the relay base station and that is served by the donor base station. Responsive to at least the determining that the air interface is threshold highly congested and that the relay base station is serving a threshold high number of first UEs, the donor base station (i) selects one or more of the plurality of second UEs and (ii) hands over the selected one or more second UEs to another base station other than the donor base station.

公开(公告)号：US10548056B1

公开(公告)日：2020-01-28

申请号：US16270831

申请日：2019-02-08

Applicant: Sprint Spectrum L.P.

Inventor： Sanghoon Sung ,  Yun Sung Kim ,  Hau Tran ,  Sandeep Mangrulkar

IPC: H04W36/00

Abstract: A method for controlling handover of a user equipment device (UE) between (i) a first cell site that provides dual-connectivity service on a first radio access technology (RAT) and a second RAT and (ii) a second cell site that provides standalone first-RAT service, wherein the handover includes transitioning the UE from source first-RAT service to target first-RAT service. The method includes setting a handover threshold to use as a basis to evaluate whether target first-RAT coverage detected by the UE is sufficiently stronger than source first-RAT coverage detected by the UE, where setting the handover threshold includes setting the handover threshold to a value selected based on whether the UE has detected that second-RAT coverage of the first cell site meets a defined threshold measurement threshold. Further, the method includes applying the set handover threshold as a basis to control whether to invoke the handover of the UE.

公开(公告)号：US10432453B1

公开(公告)日：2019-10-01

申请号：US15889826

申请日：2018-02-06

Applicant: Sprint Spectrum L.P.

Inventor： Sandeep Mangrulkar ,  Yun Sung Kim ,  Tri Duong ,  Sanghoon Sung

IPC: H04L12/26 ,  H04L12/24 ,  H04W76/15 ,  H04J13/16 ,  H04W88/06

Abstract: A method and corresponding system for configuring an eNodeB for improved circuit-switched-fallback (CSFB) service. The method includes detecting that, during past CSFB call setup for UEs served by the eNodeB, UEs reported as a strongest fallback coverage area a fallback coverage area that is not included in the eNodeB's CSFB-candidate data. And the method includes responsively (i) determining, based on location information and based on an identifier of the reported fallback coverage area, a node of the fallback network that the eNodeB's network can contact to facilitate CSFB call setup in the reported fallback coverage area, and (ii) adding to the CSFB-candidate data a record of the reported coverage area in association with a node identifier of the determined node, the added record being thereafter useable by the eNodeB to facilitate CSFB call setup in the reported fallback coverage area for a UE served by the eNodeB.