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：US10051511B1

公开(公告)日：2018-08-14

申请号：US15364170

申请日：2016-11-29

Applicant: Sprint Spectrum L.P.

Inventor： Dhaval Mehta ,  Jasinder P. Singh ,  Udit Thakore ,  Sanghoon Sung

IPC: H04W28/02 ,  H04B7/0413 ,  H04L12/26

Abstract: When a base station is using multiple-input multiple-output (MIMO) communication defining multiple layers of communication to serve a user equipment device (UE) over an uplink channel, and the base station detects that its backhaul connection is threshold highly congested, the base station will responsively reduce the number of communication layers used to serve the UE over the uplink channel. In some examples, the base station could reduce the number of communication layers to a single layer, thereby transitioning from serving the UE using uplink MIMO communication to serving the UE using uplink single-input single-output (SISO) communication.

公开(公告)号：US09877322B1

公开(公告)日：2018-01-23

申请号：US14814926

申请日：2015-07-31

Applicant: Sprint Spectrum L.P.

Inventor： Sanghoon Sung ,  Bharatwajan Raman ,  Udit Thakore ,  Tri Duong

IPC: H04W72/04 ,  H04W88/08 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L5/0007

Abstract: A method and system to help manage air interface resources for communication between a user equipment device (UE) and a base station. As disclosed, a UE or base station detect a situation where a transport block that the base station would allocate to the UE would be too small to hold carry a packet that the UE would seek to transmit, and the UE and base station responsively switch to a mode of operation in which the UE will receive a multi-TTI transport block allocation rather than a single-TTI transport block allocation. Given a per-TTI limitation of available air interface resources, the allocation of a transport block spanning multiple TTIs may thus provide the UE with increased air interface capacity for transmission, thus optimally allowing the UE to transmit without a need for segmentation.

公开(公告)号：US11096231B1

公开(公告)日：2021-08-17

申请号：US16523306

申请日：2019-07-26

Applicant: Sprint Spectrum L.P.

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

IPC: H04W76/16 ,  H04W76/30 ,  H04W76/27 ,  H04W88/16 ,  H04W24/10 ,  H04W92/10

Abstract: A method and system to help control connectivity of a UE served with dual connectivity by a master node and a plurality of secondary nodes. An intermediary that is disposed between a core-network gateway system and the secondary nodes tracks data flow between the gateway system and the secondary nodes and provides the master node with a data-flow report, which the master node could use as a basis to trigger release of the UE's RRC connection, and/or to control addition or removal of one or more secondary nodes for the UE's dual-connectivity service.

公开(公告)号：US10952270B1

公开(公告)日：2021-03-16

申请号：US16417094

申请日：2019-05-20

Applicant: Sprint Spectrum L.P.

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

IPC: H04W4/00 ,  H04W76/15 ,  H04W72/12 ,  H04W88/08 ,  H04W72/04 ,  H04W92/10 ,  H04W72/10

Abstract: In an arrangement where an access node (e.g., a Node-B) is used in dual-connectivity service of UEs that are served by other access nodes, resources of the access node could be dynamically allocated to the UEs based at least on respective priorities designated for the other access nodes. For instance, each other access node could be prioritized based on its type, such as whether it is a macro access node, a small-cell access node, an indoor access node, an access node for a special event, or a access node for dedicated service, among other possibilities, and allocation of resources of the jointly-used access node could be defined based on these priorities, giving higher resource-allocation priority to UEs that are served by a higher priority other access node and giving lower resource-allocation priority to UEs that are served by a lower priority other access node.

公开(公告)号：US09609651B1

公开(公告)日：2017-03-28

申请号：US14592556

申请日：2015-01-08

Applicant: Sprint Spectrum L.P.

Inventor： Sanghoon Sung ,  Yun Sung Kim

IPC: H04W72/04 ,  H04L12/911

CPC classification number: H04W72/0453 ,  H04L47/827 ,  H04W72/085

Abstract: A wireless air interface may be defined for communication with a wireless communication device (WCD). The wireless air interface may include paired low-frequency channels and paired high-frequency channels, where the paired low-frequency channels include a low-frequency downlink channel and a low-frequency uplink channel, and where the paired high-frequency channels include a high-frequency downlink channel and a high-frequency uplink channel. It may be determined that, on at least one of the downlink or uplink channels, the WCD is experiencing a quality of wireless coverage below a threshold wireless coverage value. Possibly in response to the WCD experiencing the quality of wireless coverage below the threshold wireless coverage value, the downlink and uplink channels may be reconfigured so that the paired low-frequency channels include two low-frequency uplink channels and the paired high-frequency channels include two high-frequency downlink channels.