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公开(公告)号：US09832773B1
公开(公告)日：2017-11-28
申请号：US15342455
申请日：2016-11-03
Applicant: Sprint Spectrum LP
Inventor： Yu Zhou , Chunmei Liu , Muhammad Ahsan Naim
CPC classification number: H04W72/0446 , H04W24/00 , H04W28/02 , H04W72/08 , H04W72/1268
Abstract: A system and method of scheduling communication in a wireless communication network are provided. A first access node can determine a scheduling scheme based on data addressed to wireless devices in communication with the first, second, and third access nodes. The data addressed to the wireless devices in communication with the first access node can be transmitted during a first subframe of the scheduling scheme where the first access node does not transmit data addressed to the wireless devices in communication with the first access node during a second subframe of the scheduling scheme. The second and third access nodes can be instructed to assign data addressed to wireless devices that do not meet a signal condition threshold to be transmitted during the first subframe and to assign data addressed to wireless devices that meet the signal condition threshold to be transmitted during the second subframe.
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公开(公告)号：US09813319B1
公开(公告)日：2017-11-07
申请号：US14088160
申请日：2013-11-22
Applicant: Sprint Spectrum LP
Inventor： Seng Gan
IPC: H04L12/26
CPC classification number: H04L43/0829 , H04L43/0835 , H04L43/16
Abstract: Systems and methods for detecting packet loss in a communication network are provided. A first network element can determine that a first group of packets meets an observation threshold. The observation threshold can comprise a predetermined number of packets in a sequence. A first timer can be initiated when the first group of packets meets the observation threshold. A first packet can be detected at the first network element after the first timer is initiated. The first timer can be re-initiated when the first packet is detected at the first network element before the first timer expires and the first packet comprises a packet in the sequence greater than a last detected packet. A first packet loss can be determined when the first packet is not a next packet in the sequence.
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公开(公告)号：US09763142B1
公开(公告)日：2017-09-12
申请号：US14730307
申请日：2015-06-04
Applicant: Sprint Spectrum LP
Inventor： Sungki Park , Saied Kazeminejad
CPC classification number: H04W36/0005 , H04W36/0033 , H04W36/14 , H04W48/18 , H04W68/02 , H04W88/06
Abstract: An indication is received from a wireless device in communication with a first communication system using a first radio access technology that the wireless device has detected a second communication system using a second access technology. Network information of the first communication system is provided and stored at the wireless device when performing a first handover of the wireless device from the first communication system to the second communication system. The network information is provided to the first communication system to perform a second handover from the second communication system to the first communication system.
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公开(公告)号：US09706385B1
公开(公告)日：2017-07-11
申请号：US14743008
申请日：2015-06-18
Applicant: Sprint Spectrum LP
Inventor： Volkan Sevindik
Abstract: Systems and methods are described for configuring device to device communication. Communication information may be received at an access node identifying at least two wireless devices comprising a device to device communication group. NACK messages may be received from a plurality of wireless devices proximate to the communication group. Data may be retransmitted to the plurality of wireless devices proximate to the communication group based on the received NACK messages, wherein the at least two wireless device comprising the communication group perform device to device communication based on the resources used for retransmission.
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公开(公告)号：US09667402B1
公开(公告)日：2017-05-30
申请号：US14856944
申请日：2015-09-17
Applicant: Sprint Spectrum LP
Inventor： Chunmei Liu , Pratik Kothari , Krishna Sitaram , Hemanth Pawar
CPC classification number: H04L5/0073 , H04J11/0056 , H04L5/0023 , H04L5/0037 , H04L5/006 , H04W72/1231
Abstract: Systems and methods are also described for mitigating interference at an access node. It may be determined, based on an interference metric for a first wireless device exceeding an interference criteria, that communication between the first wireless device and a cell of an access node is experiencing interference from a neighboring cell. A second wireless device receiving a beamformed transmission may be identified, wherein the beamformed transmission to the second wireless device is identified as an interference source for communication between the first wireless device and the cell of the access node. Transmissions to the first wireless device and the second wireless device may be scheduled such that the scheduled timings for transmissions to the first wireless device are different from the scheduling timings for transmissions to the second wireless device.
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Patent Agency Ranking
公开(公告)号：US09648631B1
公开(公告)日：2017-05-09
申请号：US14452575
申请日：2014-08-06
Applicant: Sprint Spectrum LP
Inventor： Volkan Sevindik
CPC classification number: H04W72/085 , H04L5/0057 , H04W4/06
Abstract: Systems and methods are described for determining a transmission scheme for a broadcast. Channel quality indicators may be tracked for a plurality of wireless devices. An average channel quality indicator may then be calculated based on the tracking for each of the plurality of wireless devices that subscribes to a broadcast transmission. A transmission scheme for the broadcast transmission may then be determined based on the average channel quality indicators, the transmission scheme comprising at least a modulation and coding scheme for the broadcast transmission. A set of access nodes may then be instructed to transmit the broadcast using the determined transmission scheme.
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公开(公告)号：US09622242B1
公开(公告)日：2017-04-11
申请号：US14961023
申请日：2015-12-07
Applicant: Sprint Spectrum LP
Inventor： Hemanth Pawar , Shilpa Kowdley Srinivas , Krishna Sitaram , Chunmei Liu
CPC classification number: H04W72/0446 , H04B7/0617 , H04W72/046
Abstract: At certain beamforming angles (i.e., those greater than a threshold amount) a sidelobe of a beamforming pattern used by a first sector may be pointed at wireless devices being serviced by a second sector. This causes the interference experienced by the first sector to be increased due to the transmissions of the wireless devices being serviced by the second sector. To help mitigate the interference experienced by the first sector, when the access node determines it is using a beamforming angle that may be susceptible to interference from the second sector (e.g., beamforming angle greater than a threshold), the first sector selects an amount of TTI bundling to be used by a wireless device. By configuring a wireless device to use TTI bundling (i.e., increase redundancy), the link budget for the wireless device is improved thereby lessening the effects of the interference being received via the sidelobe.
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公开(公告)号：US09621301B1
公开(公告)日：2017-04-11
申请号：US14567237
申请日：2014-12-11
Applicant: Sprint Spectrum LP
Inventor： Yun Sung Kim , Sanghoon Sung , Pinal Tailor , Tri Duong
CPC classification number: H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L2001/0092 , H04W84/045
Abstract: Systems and methods are described for determining a modulation and coding scheme for a small cell. A small cell may receive a first signal level for a first signal received at a wireless device and a second signal level for a second signal received at the wireless device, wherein the received first signal is from the small cell and the received second signal is from a macro cell. The small cell may also receive a channel quality indicator from the wireless device that indicates a channel quality for communications between the wireless device and the small cell. A signal level metric may be calculated based on the first signal level, the second signal level, and the received channel quality indicator. A modulation and coding scheme for a transmission from the small call may be determined, wherein the transmission is associated with an almost blank subframe transmission from the macro cell.
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公开(公告)号：US09609543B1
公开(公告)日：2017-03-28
申请号：US14501280
申请日：2014-09-30
Applicant: Sprint Spectrum LP
Inventor： Daniel Vivanco
IPC: H04W28/02 , H04L12/861 , H04L12/859 , H04W72/04 , H04L12/853 , H04L12/863
CPC classification number: H04W28/0268 , H04L5/00 , H04L47/2416 , H04L47/2475 , H04L47/34 , H04L47/56 , H04L47/626 , H04L49/9057 , H04W72/0446 , H04W72/0453
Abstract: In systems and methods of determining a transmission order of packets in a wireless communication network, one method includes determining an efficiency of time frequency frame allocations performed by a network node over a predetermined period of time. The method also includes determining when the efficiency of the time frequency frame allocations is below a threshold. The method further includes rearranging two or more time frequency frames in one or more time transmission intervals when the efficiency of the time frequency frame allocations is determined to be below the threshold.
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230.发明授权公开(公告)号：US09609527B1
公开(公告)日：2017-03-28
申请号：US14566966
申请日：2014-12-11
Applicant: Sprint Spectrum LP
Inventor： Pinalkumari Tailor , Yun Sung Kim , Sanghoon Sung , Dhaval Dipak Mehta
CPC classification number: H04W16/28 , H04B7/024 , H04B7/0617 , H04B15/00 , H04W72/12
Abstract: Systems and methods are described for coordinating interference mitigation techniques and beamforming. Information about transmissions made by at least one access node neighboring a first access node is obtained. Further, profile data for a wireless device within a transmission range of the first access node is obtained. The systems and methods contemplate determining that transmissions from the first access node to the wireless device will utilize beamforming, based upon the profile data for the wireless device. The first access node is instructed to schedule wireless transmissions to the wireless device utilizing beamforming, based upon the determination to use beamforming.
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