公开(公告)号：US10743232B1

公开(公告)日：2020-08-11

申请号：US15352129

申请日：2016-11-15

Applicant: Sprint Spectrum L.P.

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

IPC: H04W36/00 ,  H04L5/00 ,  H04W36/38 ,  H04W8/22 ,  H04W36/30

Abstract: A base station may use another base station's carrier-aggregation policy for a cell and carrier-aggregation capability information for a UE as a basis to control handover of the UE from the base station to the other base station. As one example, a first base station may receive, from a UE, a report that the UE has detected coverage of a target cell. The target cell may be provided by a second base station, and the first base station may determine whether the target cell can be aggregated with one or more other cells and whether the UE supports carrier aggregation. The first base station may then select a handover threshold based on the determination, and use the selected handover threshold as a basis to control handover of the UE from being served by the first base station to being served by the second base station.

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：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：US10193727B1

公开(公告)日：2019-01-29

申请号：US15375896

申请日：2016-12-12

Applicant: Sprint Spectrum L.P.

Inventor： Sanghoon Sung ,  Udit Thakore ,  Dhaval Mehta ,  Yu Wang

IPC: H04L27/26 ,  H04W72/04 ,  H04L5/00 ,  H04W88/02 ,  H04W88/08

Abstract: Disclosed is a method and system for selectively muting default downlink transmission of particular reference signals in order to reduce interference experienced by user equipment devices (UEs) receiving user data. In scheduling transmission of a downlink resource block (RB), a base station may select a particular transmission mode (TM) that does not require transmission of the particular reference signal. The base station may also determine that no condition exists that requires default transmission of the particular reference signal during a time interval allocated for transmission of the RB and on sub-carrier frequencies allocated to the RB. With particular TM selected and the absence of other requirements for default transmission of the particular reference signal, the base station can then mute transmission of the particular reference signal during transmission of the downlink RB. The base station may also coordinate scheduling with a neighboring base station to achieve further interference reduction.

公开(公告)号：US10085279B1

公开(公告)日：2018-09-25

申请号：US15449896

申请日：2017-03-03

Applicant: Sprint Spectrum L.P.

Inventor： Dhaval Mehta ,  Jasinder P. Singh ,  Udit Thakore ,  Yu Wang

IPC: H04W4/00 ,  H04W72/12 ,  H04W8/00 ,  H04W28/02 ,  H04W88/08

CPC classification number: H04W72/1273 ,  H04W28/0205 ,  H04W36/0088 ,  H04W88/08

Abstract: When a base station is serving a user equipment device (UE) that tunes away from the base station during recurring tune-away periods, the base station will determine that the base station did not receive a communication expected to be received at a particular time from the UE. Based on the determining, the base station will estimate a first tune-away period of the UE's recurring tune-away periods to be a time period that encompasses the particular time. And based on the estimated first tune-away period, the base station will estimate times of subsequent tune-away periods. The base station will then configure itself such that it avoids communicating with the UE during the estimated times of the subsequent tune-away periods.

公开(公告)号：US09479989B1

公开(公告)日：2016-10-25

申请号：US14496930

申请日：2014-09-25

Applicant: Sprint Spectrum L.P.

Inventor： Dhaval Mehta ,  Siddhartha Chenumolu ,  Jasinder P. Singh ,  Siddharth S. Oroskar

IPC: H04W36/28

CPC classification number: H04W36/28 ,  H04W36/0061 ,  H04W36/24

Abstract: A base station or a UE may use another base station's carrier-aggregation policy for a cell provided by the other base station as a basis to control handover of the UE from being served by the base station to being served by the other base station. As one example, a first base station may use a second base station's carrier-aggregation policy for at least one of multiple co-located cells provided by the second base station as a basis to control handover of the UE from being served by the first base station to being served by the second base station. As another example, a UE may use a second base station's carrier-aggregation policy for one of multiple co-located cells provided by the second base station as a basis to control cell reselection.

Abstract translation: 基站或UE可以为另一基站提供的小区使用另一个基站的载波聚合策略作为控制UE从基站服务到由另一基站服务的切换的基础。 作为一个示例，第一基站可以使用由第二基站提供的多个共址小区中的至少一个的第二基站的载波聚合策略作为控制UE从第一基站服务的切换的基础 站由第二基站服务。 作为另一示例，UE可以使用第二基站的载波聚合策略作为由第二基站提供的多个同位置小区之一作为控制小区重选的基础。

公开(公告)号：US09480046B1

公开(公告)日：2016-10-25

申请号：US14737163

申请日：2015-06-11

Applicant: Sprint Spectrum L.P.

Inventor： Dhaval Mehta ,  Abdul-Wahab Mirza ,  Siddhartha Chenumolu

IPC: H04W68/00 ,  H04W68/06 ,  H04W68/02

CPC classification number: H04W68/04 ,  H04W76/27

Abstract: Disclosed is a method and system for managing signaling in a communication network. A paging controller determines one or more target coverage areas to attempt a paging request for a wireless communication device (WCD) based on (i) a coverage area last serving the WCD (“last known coverage area”) and (ii) an amount of time passed since the WCD last transitioned from a connected state to an idle state in the last known coverage area (“the idle duration”). The paging controller can utilize a database that specifies, on a per WCD basis, one or more records of associated data items for different last known coverage areas, idle durations, and target coverage areas. With knowledge of a last known coverage area and idle duration for a WCD, database record(s) can be identified and target coverage area(s) can be determined. A paging request can then be transmitted to the determined target coverage area(s).

Abstract translation: 公开了一种用于管理通信网络中的信令的方法和系统。 寻呼控制器基于（i）最后服务于WCD的覆盖区域（“最后已知覆盖区域”）来确定一个或多个目标覆盖区域以尝试无线通信设备（WCD）的寻呼请求，以及（ii） 从最后一个已知的覆盖区域（“闲置时间”）起WCD最后从连接状态转换到空闲状态的时间过去了。 寻呼控制器可以利用数据库，该数据库在每个WCD的基础上指定用于不同的最后已知覆盖区域，空闲持续时间和目标覆盖区域的相关数据项的一个或多个记录。 通过知道最后一个已知的覆盖区域和WCD的空闲持续时间，可以识别数据库记录，并且可以确定目标覆盖区域。 然后可以将寻呼请求发送到确定的目标覆盖区域。