公开(公告)号：US09936430B1

公开(公告)日：2018-04-03

申请号：US15062915

申请日：2016-03-07

Applicant: Sprint Spectrum L.P.

Inventor： Lyle T. Bertz ,  Mark R. Bales

IPC: H04W4/00 ,  H04W36/12 ,  H04L29/12

CPC classification number: H04W36/12 ,  H04L61/1511 ,  H04W36/0033 ,  H04W76/12

Abstract: An example embodiment may involve receiving an attach request related to a WCD. It may be determined that the WCD already has an established bearer session with a first PGW device. Possibly in response to receiving the attach request from the WCD and the WCD already having the established bearer session with the first PGW device, a request for PGW device assignment may be transmitted to a server device. A response from the server device may be received, where the response may indicate assignment of a second PGW device. A create session request may be transmitted to an SGW device. Reception of the create session request may cause the SGW device to establish, for the WCD, a new bearer session to the second PGW device. Establishment of the new bearer session may involve the second PGW device retrieving, from the first PGW device, context information related to the WCD.

公开(公告)号：US09929943B1

公开(公告)日：2018-03-27

申请号：US14080028

申请日：2013-11-14

Applicant: Sprint Spectrum L.P.

Inventor： Saravana Velusamy

IPC: H04L12/703

CPC classification number: H04W76/00 ,  H04L67/00

Abstract: A method, apparatus, and system, in which a network detects a communication failure between a gateway and a policy server, and the network responsively causes at least one user equipment device (UE) having at least one bearer connection with that gateway to detach and reattach so as to facilitate set up of at least one new bearer connection between the UE and a different gateway. Optimally, the different gateway would not have a similar communication failure with the policy server, so that the at least one new bearer connection can be successfully set up between the UE and the different gateway, and one or more other bearers can be successfully set up between the UE and the different gateway.

公开(公告)号：US09924434B1

公开(公告)日：2018-03-20

申请号：US14074500

申请日：2013-11-07

Applicant: Sprint Spectrum L.P.

Inventor： Suryan Ramamurthy ,  Saravana Velusamy

IPC: H04W36/24

CPC classification number: H04W36/24 ,  H04W36/14

Abstract: A wireless communication device (WCD) transmits to a first serving system a data-connection request that requests a packet data connection. A mobility management entity (MME) determines that an authentication procedure for authenticating the WCD for the requested packet data connection is unavailable. In response, the MME initiates a handover of the WCD from the first serving system to a second serving system. The first and second serving systems use different air interface protocols. When the handover has been successfully completed, the MME stores an indication that the WCD has been diverted to the second serving system. The MME may subsequently determine that the authentication procedure has become available. In response, the MME determines whether the WCD is associated with a valid subscriber profile. If so, the MME requests the second serving system to invite the WCD to connect to the first serving system.

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：US09872258B1

公开(公告)日：2018-01-16

申请号：US14596356

申请日：2015-01-14

Applicant: Sprint Spectrum L.P.

Inventor： Nagi A. Mansour ,  Aaron Pawlowski

IPC: H04W52/28 ,  H04W72/04

CPC classification number: H04W52/343

Abstract: Disclosed is a method and system for enabling user equipment devices (UEs) to apply less attenuation than may be specified more generally for UEs served by a base station of a wireless service provider. The base station may operate on a carrier band, serving UEs that are subscribers of the wireless service provider as well as UEs roaming in the base station's coverage area from another service provider. To avoid uplink transmission power leakage across the edges of the carrier band, the base station may broadcast a message to all the UEs notifying them to attenuate their respective transmission levels. In response, a UE may determine whether or not it is roaming to a wireless communication network of a different service provider. If the UE determines that it is not roaming, it may then attenuate its uplink transmission power by less than an amount indicated by the message.

公开(公告)号：US09844014B2

公开(公告)日：2017-12-12

申请号：US14531767

申请日：2014-11-03

Applicant: Sprint Spectrum L.P.

Inventor： Walter Rausch ,  Harry Perlow

IPC: H04W56/00 ,  H04H20/18 ,  H04W4/06 ,  H04H60/50 ,  H04H20/34 ,  H04H60/91

CPC classification number: H04W56/0015 ,  H04H20/18 ,  H04H20/34 ,  H04H60/50 ,  H04H60/91 ,  H04W4/06 ,  H04W56/00

Abstract: Disclosed herein are methods and systems that may help a base station provide high-speed data communication under a protocol such as LTE or WiMAX, even when a GPS signal is not available to the base station. In an exemplary embodiment, a base station may acquire a high-stability reference signal via a subcarrier of a terrestrial broadcast signal, such as an FM radio signal, and may coordinate the timing frame transmissions with other nearby base stations, instead of relying upon a GPS signal for such functionality.

公开(公告)号：US09843967B1

公开(公告)日：2017-12-12

申请号：US14057686

申请日：2013-10-18

Applicant: Sprint Spectrum L.P.

Inventor： Siddharth S. Oroskar ,  Jose L. Hernandez ,  Ahmad N. Saleh

IPC: H04W80/04 ,  H04W36/00 ,  H04W48/16

CPC classification number: H04W36/0022 ,  H04W48/16

Abstract: Disclosed is a method and system to help manage latency and reduce unnecessary signaling in setup of fallback communications, such as circuit switched fallback calls for instance, by taking into account the load in various fallback coverage areas. When the load of a fallback coverage area is threshold high, signaling may pass to a serving network to cause that fallback coverage area to be filtered out of a list of fallback coverage areas that a base station of the serving network would provide to a served device, so as to help avoid having the device scan for coverage of that fallback coverage area.

公开(公告)号：US09832710B1

公开(公告)日：2017-11-28

申请号：US14854699

申请日：2015-09-15

Applicant: Sprint Spectrum L.P.

Inventor： Ryan S. Talley ,  Shilpa Kowdley Srinivas ,  Muralidhar Malreddy ,  Kyle C. Allen

IPC: H04W48/10 ,  H04W72/04

CPC classification number: H04W48/10 ,  H04W4/00 ,  H04W4/06 ,  H04W72/0406

Abstract: A method and system for controlling broadcast of system identification. A base station may broadcast in one or more timeslots of a control channel, as a System Identifier (SID) of the base station, a particular SID, but may broadcast in one or more other timeslots of the control channel, as a SID of the base station, a different SID. In addition, when a mobile station registers to be served by the base station, the base station may determine which slot(s) of the control channel the mobile station will monitor and may broadcast in the determined slot(s) a SID that may help to keep the mobile station from transitioning to be served by a different base station.

公开(公告)号：US09820289B1

公开(公告)日：2017-11-14

申请号：US14575455

申请日：2014-12-18

Applicant: Sprint Spectrum L.P.

Inventor： Hemanth B. Pawar ,  Shilpa Kowdley Srinivas ,  Krishna Sitaram ,  Chunmei Liu

IPC: H04J3/17 ,  H04W72/08 ,  H04L5/14

CPC classification number: H04W72/085 ,  H04L5/001 ,  H04L5/14 ,  H04L5/1469

Abstract: A method and system for managing quantity of carriers to aggregate together in carrier aggregation service, based at least in part on consideration of the type of content that will be communicated to or from the user equipment device (UE) at issue. A base station serving the UE may determine a type of content that will be communicated between the base station and the UE and, based at least on the determined type of content, may decide whether to apply carrier aggregation and, when the decision is to apply carrier aggregation, determine, based at least on the determined type of content, how many component carriers to aggregate together in the carrier aggregation service of the UE. The base station may then modify an air interface connection with the UE to encompass the determined number of component carriers.

公开(公告)号：US09794416B1

公开(公告)日：2017-10-17

申请号：US14845598

申请日：2015-09-04

Applicant: Sprint Spectrum L.P.

Inventor： Siddharth S. Oroskar ,  Jasinder P. Singh

IPC: H04W36/00 ,  H04M7/00 ,  H04W76/04 ,  H04L29/06 ,  H04W88/08

CPC classification number: H04M7/006 ,  H04W36/0022 ,  H04W76/27 ,  H04W88/08

Abstract: Disclosed herein is a method and corresponding system for managing communication in a first network, where the first network is interconnected with a fallback network. The first network may detect, when a user equipment device (UE) served by a base station of the first network seeks to initiate a voice call, the UE will transition from being served by the first network to be served by the fallback network in order to initiate the voice call directly via the fallback network rather than initiate the voice call via the first network. In response to detecting this, and further in response to the base station not supporting signaling between the UE and the fallback network, the first network may cause the UE to not transition to be served by the fallback network and to instead stay served by the base station.