公开(公告)号：US10893562B1

公开(公告)日：2021-01-12

申请号：US16356976

申请日：2019-03-18

Applicant: Sprint Spectrum L.P.

Inventor： Sanghoon Sung ,  Yun Sung Kim ,  George W. Harter, III ,  Udit Thakore

IPC: H04W76/15 ,  H04W28/02

Abstract: A cell site that has multiple first-RAT carriers will monitor a capacity demand respectively of each first-RAT carrier, with capacity demand representing an extent to which adding more service capacity could be useful in view of the state of service on the 4G carrier. Further, the cell site will dynamically allocate resources of a second-RAT carrier for use in dual-connectivity service of UEs served on various ones of the first-RAT carriers, with the allocation being based on the capacity demands of the various primary-RAT carriers. For instance, if a first first-RAT carrier has a higher capacity demand than a second first-RAT carrier, then the cell site could allocate a more resources of the secondary-RAT carrier for use in dual-connectivity service of UEs served on the first first-RAT carrier than for use in dual-connectivity service of UEs served on the second first-RAT carrier.

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：US10805831B1

公开(公告)日：2020-10-13

申请号：US15493570

申请日：2017-04-21

Applicant: Sprint Spectrum L.P.

Inventor： Sanghoon Sung ,  Yu Wang ,  Yun Sung Kim ,  Jasinder P. Singh

IPC: H04W28/02 ,  H04W72/12 ,  H04B7/024

Abstract: A method and system to help control CoMP service in a V-RAN arrangement. The load on a cell site's fronthaul network interface between the cell site's RRH and the cell site's BBU is determined. And in response to detecting that the fronthaul load is threshold high, a limit will be imposed on application of CoMP service involving the cell site. For example, in response to detecting that the cell site's fronthaul network interface is threshold highly loaded, (i) the cell site could be made to use decentralized joint processing rather than centralized joint processing, (ii) a lower coverage strength threshold could be imposed as a basis to trigger CoMP service involving the cell site, and/or (iii) the quantity of uplink communication that is subject to CoMP service involving the cell site could be limited.

公开(公告)号：US10342024B1

公开(公告)日：2019-07-02

申请号：US14939021

申请日：2015-11-12

Applicant: Sprint Spectrum L.P.

Inventor： Dhaval Mehta ,  Yun Sung Kim ,  Yu Wang ,  Udit Thakore

IPC: H04W72/10 ,  H04L12/26 ,  H04W72/12 ,  H04W24/08 ,  H04W88/10

Abstract: Method and systems for assigning resources to user equipment devices (UEs) from a base station are disclosed. In accordance with the disclosure, the base station operates in a first mode in which the base station gives a UE a first scheduling priority level for resource assignment from the base station. The base station then makes a determination that a packet drop rate for the UE exceeds a threshold packet drop rate. Based on the determination, the base station switches from operating in the first mode to operating in a second mode in which the base station gives the UE a second scheduling priority level for resource assignment from the base station, where the second scheduling priority level is higher than the first scheduling priority level.

公开(公告)号：US10862553B1

公开(公告)日：2020-12-08

申请号：US16510459

申请日：2019-07-12

Applicant: Sprint Spectrum L.P.

Inventor： Yun Sung Kim ,  Pinal Tailor ,  Sanghoon Sung ,  Jason P. Sigg

IPC: H04B7/0452 ,  H04B7/06 ,  H04L12/24 ,  H04L5/00 ,  H04L27/26

Abstract: When a base station groups a given user equipment device (UE) together with one or more other UEs for multi-user multiple-input-multiple-output (MU-MIMO) service, the base station will predict a level of RF correlation between the given UE and the one or more other UEs of the group (e.g., based angular separation between beam direction of the UE and beam direction of each of the one or more other UEs). And the base station will use that predicted level of RF correlation as a basis to adjust a modulation and coding scheme (MCS) that the base station and the given UE will use for data communication with each other, so as to help improve data communication between the base station and the given UE in the presence of the predicted RF correlation.

公开(公告)号：US10812248B1

公开(公告)日：2020-10-20

申请号：US16257448

申请日：2019-01-25

Applicant: Sprint Spectrum L.P.

Inventor： Yun Sung Kim ,  Jason P. Sigg ,  Sanghoon Sung ,  Pinalkumari Tailor

IPC: H04L5/00 ,  H04W76/27 ,  H04W72/08 ,  H04B7/0452 ,  H04W72/12

Abstract: In accordance with the disclosure, when a base station is serving at least a threshold quantity of devices and the base station is allocating at least a threshold quantity of its air-interface resources per unit time, the base station will disable carrier-aggregation service, so as to help minimize or eliminate instances where the base station's carriers would be used as secondary component carriers for carrier-aggregation service and would not support MU-MIMO service. By disabling carrier-aggregation service in that scenario, air-interface resources that might otherwise have been used for secondary-component-carrier transmission without MU-MIMO service may then instead be available for use with MU-MIMO service, which may help to improve spectral efficiency.

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.

公开(公告)号：US10512037B1

公开(公告)日：2019-12-17

申请号：US16295993

申请日：2019-03-07

Applicant: Sprint Spectrum L.P.

Inventor： Sanghoon Sung ,  Yun Sung Kim ,  Minho Song ,  Hau Tran

IPC: H04W48/20 ,  H04W48/16

Abstract: In an wireless communication system, base stations will be set to prioritize serving one type of user equipment device (UE) over another type of UE, and each base station's respective prioritization will be conveyed to UEs to facilitate base station selection. That way, when a UE faces a choice of whether to connect with one base station or another, the UE could determine which base station gives higher priority to the UE's type and could connect with that base station, even if the UE detects stronger coverage of the other base station. And if the UE finds itself in coverage of a base station that gives lower priority to the UE's type than to another UE type, the UE could still connect with that base station unless the UE finds another base station that gives higher priority to the UE's type.