公开(公告)号：US09877233B1

公开(公告)日：2018-01-23

申请号：US13934116

申请日：2013-07-02

Applicant: Sprint Spectrum LP

Inventor： Nagi Mansour ,  Emerino J. Marchetti

IPC: H04W36/06 ,  H04W36/00

CPC classification number: H04W36/0005 ,  H04W36/0055 ,  H04W88/10

Abstract: A method of operating a communication system includes communicating a traffic channel information stream with a wireless device using a first air-interface scheme while communicating control channel information with the wireless device using the first air-interface scheme. The control channel information is communicated with the wireless device using the first air-interface scheme is used to handover the wireless device from the first air-interface scheme to a second air-interface scheme. After the handover of the wireless device from the first air-interface scheme to the second air-interface scheme, the traffic channel information stream is communicated with the wireless device using the second air-interface scheme while still communicating control channel information with the wireless device using the first air-interface scheme.

公开(公告)号：US09877214B1

公开(公告)日：2018-01-23

申请号：US14559094

申请日：2014-12-03

Applicant: Sprint Spectrum LP

Inventor： Michael Archer ,  Bret Hitchcock

IPC: H04W24/08 ,  H04W24/10

CPC classification number: H04W24/08 ,  H04W24/10

Abstract: To determine a cause of a customer experience event (e.g., dropped call or choppy video) passively collected measures from various network layers (e.g., internet, transport, application, etc.) are used to establish user activity across multiple service types (a.k.a., contexts). These contexts are monitored across parallel contexts, services, and/or sockets. The multiple contexts are aggregated for analysis. The multiple contexts can be analyzed to determine a cause of the customer experience event.

公开(公告)号：US09866310B1

公开(公告)日：2018-01-09

申请号：US14943465

申请日：2015-11-17

Applicant: Sprint Spectrum L.P.

Inventor： Hemanth B. Pawar ,  Chunmei Liu ,  Krishna Sitaram ,  Pratik Kothari

IPC: H04J1/00 ,  H04B7/155 ,  H04W48/20

CPC classification number: H04B7/15507 ,  H04W48/20 ,  H04W84/047

Abstract: Disclosed are methods and systems to facilitate selection of a donor base station to serve a relay node (RN). In particular, a base station system (BSS) may include a plurality of base stations each operable to serve user equipment devices (UEs) and operable to serve an RN. The RN is in turn operable to serve UEs. According to the disclosure, a controlling entity may determine both (i) a type of content communicated between the BSS and UEs served by the BSS (BSS-served content type) and (ii) a type of content communicated between the RN and UEs served by the RN (RN-served content type). Based on both the determined BSS-served content type and the determined RN-served content type, the controlling entity may select one of the plurality of base stations to serve the RN and may cause the selected base station to serve the RN.

公开(公告)号：US09843392B1

公开(公告)日：2017-12-12

申请号：US14529390

申请日：2014-10-31

Applicant: Sprint Spectrum L.P.

Inventor： Harold W. Johnson

IPC: H04L12/28 ,  H04B10/2575 ,  H04B10/27 ,  H04B10/40

CPC classification number: H04B10/25752 ,  H04B10/27 ,  H04B10/40 ,  H04Q11/0067 ,  H04Q11/0071

Abstract: A system is described for providing backhaul over an Ethernet passive optical network (EPON). The backhaul may be backhaul for EV-DO and/or EV-DO Rev. A communications. The system for includes at least one cell site. At least two base transceiver stations are located at the cell site. The base transceiver stations receive radio signals from respective mobile stations. A first one of the base transceiver stations provides a first backhaul signal, and a second one of the base transceiver stations provides a second backhaul signal. The cell site multiplexes these backhaul signals together onto an Ethernet passive optical network. In one embodiment, these signals are provided on different pseudowire connections within a single wavelength lambda on the passive optical network. In another embodiment, the signals are provided on different lambdas of the network.

公开(公告)号：US09838978B1

公开(公告)日：2017-12-05

申请号：US14970892

申请日：2015-12-16

Applicant: Sprint Spectrum LP

Inventor： Sanghoon Sung ,  Udit Thakore ,  Hau Tran ,  Yun Sung Kim

IPC: H04W52/26 ,  H04W52/24 ,  H04W16/14 ,  H04W72/12 ,  H04L5/14

CPC classification number: H04W52/262 ,  H04B17/318 ,  H04J11/003 ,  H04L1/0005 ,  H04L5/0046 ,  H04L5/0069 ,  H04L5/14 ,  H04W16/14 ,  H04W52/242 ,  H04W52/244 ,  H04W52/383 ,  H04W72/1263 ,  H04W72/1268 ,  H04W76/23

Abstract: Device-to-device (D2D) transmissions by a wireless device may interfere with base station reception of other signals. To mitigate this interference, the wireless device estimates the path loss between itself and the base station. The path loss and the current D2D transmission power level are used to estimate the amount of interference the base station is experiencing as a result of the D2D transmissions from the wireless device. Based on the estimated interference experienced by the base station, the wireless device increases the robustness of the MCS being used and decreases the transmission power level by a corresponding amount. By decreasing the D2D transmission power level, less interference will be experienced by the base station. By increasing the robustness of the MCS, the impact of the reduced D2D transmission power level is mitigated.

公开(公告)号：US09832688B2

公开(公告)日：2017-11-28

申请号：US15014953

申请日：2016-02-03

Applicant: Sprint Spectrum L.P.

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

IPC: H04W36/00 ,  H04W72/04 ,  H04W36/14

CPC classification number: H04W36/0022 ,  H04W36/14 ,  H04W72/0453

Abstract: Embodiments are described that may help to provide wireless service in a circuit-switched fall back scenario. In particular, when a user entity (UE) falls back from a first network to a second network to conduct a voice call, the first network may instruct the UE to scan a certain predetermined channel or channels for coverage from the second network. However, certain types of base stations typically operate on unlisted channels that differ from the predetermined channels that the UE is instructed to scan. Accordingly, a UE may pre-emptively scan unlisted channels, and report any unlisted channel that is detected to the first network. The first network can then coordinate with the second network to re-provision the base station that was operating on an unlisted channel, to instead operate on one of the predetermined channels that a UE will be instructed to scan during fall back to the second network.

公开(公告)号：US09820331B1

公开(公告)日：2017-11-14

申请号：US14619346

申请日：2015-02-11

Applicant: Sprint Spectrum L.P.

Inventor： Jasinder P. Singh ,  Siddharth S. Oroskar ,  Anoop K. Goyal

IPC: H04W76/06 ,  H04W28/04

CPC classification number: H04W76/34 ,  H04W76/18 ,  H04W76/38

Abstract: Disclosed is a method and system for release of a UE's context record in response to failure of air interface communication. As disclosed, a wireless communication system includes a base station that has a protocol stack defining a series of logical processing layers through which the base station sequentially processes data for transmission to a UE. The layers include an upper layer and a physical layer at which the base station processes the data for communication over an air interface to the UE. Accordingly, the base station detects failure of air interface communication between the base station and the UE. In response to detecting the failure, and without waiting to detect at the upper layer a further failure corresponding with the failure of the air interface communication, the base station transmits to a network controller a UE-context release request requesting release of bearer context that was established for the UE.

公开(公告)号：US09813966B1

公开(公告)日：2017-11-07

申请号：US14023785

申请日：2013-09-11

Applicant: Sprint Spectrum LP

Inventor： Sungki Park ,  Saied Kazeminejad ,  Senthil K. Veeraragavan

IPC: H04W36/20 ,  H04W36/30

CPC classification number: H04W36/30 ,  H04W36/04 ,  H04W36/20

Abstract: A first wireless device is served with an access node. The access node has a first coverage area. A second wireless device is served with a sub-cell access node. The sub-cell access node has a second coverage area that is contained within the access node coverage area. Based on the determination to reduce the load on the sub-cell access node, a handover of a wireless device from the sub-cell access node to the access node is caused by reducing the transmit power used by the sub-cell access node. Based on a comparison of a first signal quality indicator associated with a first sub-cell access node to a second signal quality indicator associated with a second sub-cell access node, a transmit power from the first access node is reduced.

公开(公告)号：US09750047B1

公开(公告)日：2017-08-29

申请号：US14843592

申请日：2015-09-02

Applicant: Sprint Spectrum L.P.

Inventor： Nitesh Manchanda ,  Siddharth S. Oroskar ,  Jasinder P. Singh

IPC: H04B7/00 ,  H04W72/14 ,  H04M15/00 ,  H04W76/04 ,  H04W76/02 ,  H04W74/08 ,  H04W4/16 ,  H04W88/02 ,  H04W88/08 ,  H04W92/10

CPC classification number: H04M15/59 ,  H04M15/56 ,  H04W4/16 ,  H04W72/1278 ,  H04W74/008 ,  H04W74/0833 ,  H04W76/12 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08 ,  H04W92/10

Abstract: Disclosed is a method and system that may help to expedite initiation of a packet-based real-time media session such as a VoIP session. Per the disclosure, the initial uplink grant that a base station provides to a UE in response to an access request may be an extent of uplink resources sufficient to carry just a radio-link-layer connection request. But when a UE is going to initiate a packet-based real-time media session, the UE may send a particular type of access request that is indicative of the plan to initiate a packet-based real-time media session, and responsive to the access request being of that particular type, the base station may then instead provide an initial grant of a greater extent of uplink resources sufficient to carry from the UE not only the radio-link-layer connection request but also a session initiation request (e.g., SIP INVITE) for the packet-based real-time media session.

公开(公告)号：US09723535B1

公开(公告)日：2017-08-01

申请号：US14536908

申请日：2014-11-10

Applicant: Sprint Spectrum L.P.

Inventor： Sreekar Marupaduga ,  Gauravpuri Goswami ,  Andrew M. Wurtenberger ,  Patrick J. Schmidt

IPC: H04W36/00 ,  H04W36/32 ,  H04W36/08 ,  H04W36/38 ,  H04W36/14 ,  H04W36/22

CPC classification number: H04W36/22 ,  H04W36/0083 ,  H04W36/14

Abstract: Systems and methods for performing UE handover based on group delay variation include a base station (i) selecting a target neighbor sector from a plurality of neighbor sectors for the handover, where each neighbor sector has a group delay metric, and where the target neighbor sector is selected from the neighbor sectors based at least in part on each neighbor sector's group delay variation and (ii) initiating handover of the UE to the target neighbor sector. Some embodiments include creating a neighbor relations table (NRT) comprising at least some of the neighbor sectors, and prioritizing the NRT based on group delay and/or group delay variation. In some embodiments, selection of the target neighbor sector for the handover is additionally based on neighbor sector handover success rates and Reference Signal Receive Power (RSRP) values for neighbor sectors reported by the UE for which the handover is to be performed.