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：US10827551B1

公开(公告)日：2020-11-03

申请号：US16260651

申请日：2019-01-29

Applicant: Sprint Spectrum L.P.

Inventor： Sreekar Marupaduga ,  Rajveen Narendran

IPC: H04W8/08 ,  H04W24/08 ,  H04W92/10 ,  H04W4/02 ,  H04W76/16 ,  H04W40/24

Abstract: When a UE is served with standalone-connectivity under a first radio access technology (RAT) in a cell site that also supports dual-connectivity service under the first RAT and a second RAT, a decision will be made as to whether to configure the dual-connectivity service for the UE, with the decision being based on whether the UE is moving threshold quickly. If the UE is moving at least predefined-threshold quickly, then, based at least on that fact, the decision will be to not configure the dual-connectivity service for the UE. Whereas, if the UE is not moving at least predefined-threshold quickly, then, based at least on that fact, the decision will be to configure the dual-connectivity service for the UE. The UE's serving network will then operate according to the decision, to control whether the UE is provided with dual-connectivity service.

公开(公告)号：US10826576B1

公开(公告)日：2020-11-03

申请号：US16212266

申请日：2018-12-06

Applicant: Sprint Spectrum L.P.

Inventor： Sreekar Marupaduga ,  Rajveen Narendran

IPC: H04B7/0452 ,  H04W24/08 ,  H04W72/08 ,  H04W92/10

Abstract: A method and system for controlling application of MU-MIMO. The disclosure provides for considering a device's rate of change of RF conditions as a basis to decide whether to provide the device with MU-MIMO service. For instance, a base station could determine which of the base station's served devices each have threshold low rate of change of RF conditions. And on at least that basis, the base station could select each such device to receive MU-MIMO service. Or faced with a choice between devices to receive MU-MIMO service, the base station could compare the devices' rates of change of RF conditions and could select the devices that have lower rate of change of RF conditions to receive MU-MIMO service.

公开(公告)号：US10819402B1

公开(公告)日：2020-10-27

申请号：US16213747

申请日：2018-12-07

Applicant: Sprint Spectrum L.P.

Inventor： Sreekar Marupaduga ,  Rajveen Narendran

IPC: H04W72/04 ,  H04W72/12 ,  H04W92/10 ,  H04B7/06 ,  H04B7/0452

Abstract: When a base station is serving a plurality of devices on a common carrier and the base station is considering which subset of the UEs to group together with each other for MU-MIMO service, the base station could base the decision on a determination of whether the base station is serving the UEs of the subset on a common primary carrier. Or faced with a choice of which subset of UEs to group together with each other for MU-MIMO service, the base station could give priority to grouping UEs that the base station is serving on a common primary carrier, as compared with UEs that the base station is serving on a common carrier but not on a common primary carrier.

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：US10757563B1

公开(公告)日：2020-08-25

申请号：US15208154

申请日：2016-07-12

Applicant: Sprint Spectrum L.P.

Inventor： John J. Humbert ,  Mike Witherell ,  Scott Migaldi ,  George Cummings ,  Nick J. Baustert

IPC: H04W8/08 ,  H04L5/14 ,  H04W64/00

Abstract: A method and system to help address this issue. When a device is within coverage of a cell that operates with a particular TDD configuration, the device will determine based on its location a set of one or more TDD frame configurations that the device would support, which could be based on maximum uplink transmission power of the UE, permitted maximum transmission power in the location, and uplink duty cycle defined by each of the various TDD configurations. The UE will then control whether or not it will be served by the cell based on whether the TDD configuration of the cell is within the determined set.

公开(公告)号：US10750416B1

公开(公告)日：2020-08-18

申请号：US16386033

申请日：2019-04-16

Applicant: Sprint Spectrum L.P.

Inventor： Sathyanarayanan Raghunathan ,  Muthukumaraswamy Sekar ,  Maheswaran Vijayakumar ,  Suresh Majjara

IPC: H04W36/00 ,  H04W64/00 ,  H04B7/155

Abstract: While a device is served on a first wireless connection on a first carrier that has a first center frequency, a determination will be made that a threshold high probability of precipitation is forecast for a location of the first wireless connection. In response to at least that determination, but before the forecast precipitation occurs, the device will then be reconfigured from being served on the first wireless connection on the first carrier to instead being served on a second wireless connection on a second carrier that has a second center frequency lower than the first center frequency, with the reconfiguring being based on the second center frequency being lower than the first center frequency. Proactively switching the device to a lower carrier based on the prediction of precipitation may help to minimize rain fade and associated issues.

公开(公告)号：US10681592B1

公开(公告)日：2020-06-09

申请号：US15807276

申请日：2017-11-08

Applicant: Sprint Spectrum L.P.

Inventor： Hemanth B. Pawar ,  Krishna Sitaram ,  Shilpa K. Srinivas

IPC: H04W36/00 ,  H04W68/00 ,  H04W36/08

Abstract: When a UE is served by a first radio access network (RAN) and is engaged in a voice call such as a VoIP call, a determination will be made that the UE is at an edge of coverage (e.g., threshold poor coverage) of the first RAN and that there is no other adjacent coverage of the first RAN that could support the voice call. In response, signaling will cause a second RAN to page the UE via the first RAN so as to cause the UE to transition from being served by the first RAN to being served by the second RAN. More generally, when a UE has poor coverage of its serving RAN, another RAN will pull the UE to the second RAN by paging the UE to trigger transition of the UE from to the second RAN.

公开(公告)号：US10652915B1

公开(公告)日：2020-05-12

申请号：US16182209

申请日：2018-11-06

Applicant: Sprint Spectrum L.P.

Inventor： Nagi A. Mansour ,  Akin Ozozlu ,  Noman M. Alam

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/14

Abstract: Disclosed are methods and systems for adjusting allocation of uplink (UL) and downlink (DL) air interface resources to user equipment devices (UEs) in a wireless communication system configured for dynamic allocation of relative amounts UL and DL time division duplex (TDD) air interface resources. The wireless communication system may determine usage demand for UL air interface resources relative to DL air interface resources as a function of time of day. Then, based on the usage demand, a schedule may be created for assigning a ratio of UL TDD allocation to DL TDD allocation. Finally, dynamic TDD allocation may be applied to set relative amounts of UL and DL air interface time for UEs served by the wireless communication system according to the schedule, instead of applying unscheduled dynamic TDD allocation of relative amounts of UL and DL air interface time.

公开(公告)号：US10609708B1

公开(公告)日：2020-03-31

申请号：US15634511

申请日：2017-06-27

Applicant: Sprint Spectrum L.P.

Inventor： Rajveen Narendran ,  Ravi Kallepalli ,  Ryan P. Dreiling ,  Christopher Bailey

IPC: H04W72/04 ,  H04L5/14 ,  H04W4/70 ,  H04L5/00

Abstract: A method and system to help control transmission over an air interface from a base station to a served WCD. When the base station has a threshold small quantity of data to transmit over the air to a WCD, the base station will schedule the transmission to occur in a downlink PRB of a special subframe, rather than in a PRB of a regular downlink subframe. As the downlink PRB of the special subframe likely has fewer useable resource elements than the PRB of the regular downlink subframe, this process could help to minimize waste of air interface resources resulting from not making use of resource elements in an allocated PRB.