公开(公告)号：US10440712B1

公开(公告)日：2019-10-08

申请号：US15592630

申请日：2017-05-11

Applicant: Sprint Spectrum LP

Inventor： Zheng Fang ,  Roger Danforth Bartlett ,  Zheng Cai ,  Yu Wang

IPC: H04W72/04 ,  H04W92/20

Abstract: Systems and methods are described for assigning operating bands to wireless devices of a wireless network. Registration notifications for a plurality of wireless devices are received at an access node. Each of the plurality of wireless devices are classified as either an indoor wireless device or an outdoor wireless device. The access node instructs wireless devices classified as indoor wireless devices to operate on a first operating band. The access node instructs wireless devices classified as outdoor wireless devices to operate on a second operating band.

公开(公告)号：US10015070B1

公开(公告)日：2018-07-03

申请号：US15195077

申请日：2016-06-28

Applicant: Sprint Spectrum LP

Inventor： Zheng Cai ,  Zheng Fang ,  Roger Bartlett ,  Yu Wang

IPC: H04W52/18 ,  H04L12/26 ,  H04W36/24 ,  H04W36/16

CPC classification number: H04W36/16 ,  H04W8/22 ,  H04W36/00837 ,  H04W36/24 ,  H04W52/40

Abstract: Systems and methods are described for extending coverage of a wireless device. A handover trigger threshold may be established for a plurality of wireless devices located in a coverage area of an access node. An attachment request may be received at the access node from at least one wireless device having a power class different from a common power class of the plurality of wireless devices. Based on the reported power class, the access node may adjust a handover trigger threshold for the at least one wireless device. The access node may instruct the at least one wireless device to extend its coverage until the adjusted handover trigger threshold is met.

公开(公告)号：US10291541B1

公开(公告)日：2019-05-14

申请号：US14801044

申请日：2015-07-16

Applicant: Sprint Spectrum LP

Inventor： Sanghoon Sung ,  Tri Duong ,  Udit Thakore ,  Yu Wang

IPC: H04W72/12 ,  H04L12/925 ,  H04L12/823

Abstract: Systems and methods are described for scheduling transmissions from an access node in a communication network. A plurality of data packets may be received at a buffer of an access node. A discard timer may be started on receipt of the data packets. When the discard packet timer expires, a number of data packets in the buffer and an associated aggregated queuing delay may be determined. The aggregated queuing delay may be compared to target block error rate (BLER). The target BLER may be modified when the aggregated queuing delay and the number of data packets exceed a target threshold. Data packets may be transmitted from the access node using the modified BLER.

公开(公告)号：US09860786B1

公开(公告)日：2018-01-02

申请号：US15011925

申请日：2016-02-01

Applicant: Sprint Spectrum LP

Inventor： Yu Wang ,  Dhaval Mehta ,  Won An ,  Udit Thakore

IPC: H04W28/08 ,  H04W28/06 ,  H04L29/06 ,  H04B7/155 ,  H04W88/04

CPC classification number: H04W28/06 ,  H04B7/15542 ,  H04L65/608 ,  H04L65/80 ,  H04L69/04 ,  H04W88/04

Abstract: Network nodes including relays and access nodes are configured to transport data packets by identifying the type of data packet and correspondingly compressing a header portion of the data packet. Operations described herein may be implemented in a network that is capable of transporting voice over LTE (VoLTE) data packets using the GPRS tunneling protocol (GTP). A unique value is marked to an IP header of the voice data packet, and the GTP headers may be mapped to a unique bearer that is different from a standard voice bearer used in the network. The compression uses a robust header compression (RoHC), which includes compressing a RTP header portion along with a GTP header portion using existing or new compression profiles.

公开(公告)号：US11102693B1

公开(公告)日：2021-08-24

申请号：US15234046

申请日：2016-08-11

Applicant: Sprint Spectrum LP

Inventor： Zheng Fang ,  Roger Danforth Bartlett ,  Zheng Cai ,  Yu Wang

IPC: H04W36/30 ,  H04W4/90 ,  H04W52/36 ,  H04L12/741 ,  H04L12/26 ,  H04W24/10 ,  H04W4/02 ,  H04W88/08 ,  H04W88/02

Abstract: Systems and methods are described for assigning a mobility parameter to a wireless device. One or more measurement reports may be collected at an access node from the wireless device. A pathloss change for the wireless device may be calculated based on the collected measurement reports. When the calculated pathloss change exceeds a threshold, the wireless device may be instructed to report surplus transmit power at the access node. The reported surplus transmit power may be correlated to preset location environments and a position of the wireless device classified based on the correlation. A mobility parameter may be assigned for the wireless device.

公开(公告)号：US10973022B1

公开(公告)日：2021-04-06

申请号：US16200986

申请日：2018-11-27

Applicant: Sprint Spectrum LP

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

IPC: H04W56/00 ,  H04W72/04 ,  H04B15/00 ,  H04B17/345

Abstract: Mitigating interference between access nodes in a wireless network includes determining interference caused to uplink signals received at a first access node by downlink signals transmitted from a second access node, and adjusting a guard period of a special subframe utilized by one or both of access nodes based on determining the interference, by switching special subframe formats to include a longer guard period. Overall interference is mitigated based on mutually-experienced propagation delay, and channel reciprocity. Adjustments are associated with known distances between access nodes.