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公开(公告)号：US10264581B1
公开(公告)日：2019-04-16
申请号：US15374439
申请日：2016-12-09
Applicant: Sprint Spectrum L.P.
Inventor： Yu Zhou , Shahzada Rasool , Muhammad A. Naim
Abstract: A method and system to help facilitate efficient use of frequency spectrum. A base station will provide service on two carriers that partially overlap with each other in frequency. To facilitate this, the base station could shift the frame timing of one carrier in relation to the other carrier, so as to minimize or avoid overlap of the carriers' downlink control channels. Further, the base station could control service on each carrier in a manner that helps avoid resource conflicts within the overlapping frequency region.
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公开(公告)号：US09907059B1
公开(公告)日：2018-02-27
申请号：US15167395
申请日：2016-05-27
Applicant: Sprint Spectrum L.P.
Inventor： Yu Zhou , Muhammad Ahsan Naim , Luca Zappaterra
CPC classification number: H04W72/0413 , H04L5/001 , H04L5/0035 , H04W72/0453 , H04W88/02 , H04W88/08 , H04W92/10
Abstract: Disclosed is a method and system for compensating excessive delay spread in uplink coordinated multipoint service. An uplink data-unit transmitted by a user equipment device (UE) on a first uplink air interface to a first base station (BS) using a first group of sub-carrier frequencies may be received at a time that is within an alignment-time range for simultaneously decoding uplink data-units from UEs transmitting on the first uplink. A determination is made that the uplink data-unit transmitted simultaneously by the UE on a second uplink air interface using a second group of sub-carrier frequencies will be received at a second BS at a time that is time is beyond the alignment-time range for simultaneously decoding uplink data-units from UEs transmitting on the second uplink. Decoding of the received uplink data-unit at the second BS is then delayed until a start time beyond the end of the alignment-time range.
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公开(公告)号：US09877342B1
公开(公告)日：2018-01-23
申请号：US15070794
申请日：2016-03-15
Applicant: Sprint Spectrum L.P.
Inventor： Luca Zappaterra , Yu Zhou , Muhammad A. Naim
CPC classification number: H04W74/008 , H04L27/0006 , H04W72/0406 , H04W74/0816
Abstract: When an upper layer of a device is going to initiate an exchange of two or more messages with a corresponding upper layer of another device, the initiating device will provide from its upper layer to a lower layer such as a MAC layer an indication of how many messages the devices will be exchanging. In response to that indication, the lower layer of the initiating device will then cause the lower layer of the other device to forgo checking for and confirming availability of the channel for transmission of the next message of the exchange from the other device to the initiating device. Further, the lower layer of the initiating device may also responsively forgo for and confirming availability of the channel for a subsequent message of the exchange.
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4.发明授权公开(公告)号：US09479980B1
公开(公告)日：2016-10-25
申请号：US14327354
申请日：2014-07-09
Applicant: Sprint Spectrum L.P.
Inventor： Muhammad A. Naim , Yu Zhou
CPC classification number: H04W36/0083 , H04J11/005 , H04L5/0007 , H04L5/0073 , H04W36/08 , H04W36/22
Abstract: Aspects of selecting a base station for a UE device are described. The UE device or a wireless network component (e.g., a base station) can determine RF uplink use values of a coverage area. The RF uplink use values can be received from one or more base stations and can be based on a subframe or other time segment. A processor can determine a base station having a greatest number of subframes with at least one resource block available. If the base stations have an equal number of subframes having at least one resource block available, the processor can determine which base station has a greatest number of subframes having at least two resource blocks available (or three, etc. if additional ties exist). A selection of the base station can be based on the processor's determination and whether the UE device is located within an edge of a coverage area.
Abstract translation: 描述为UE设备选择基站的方面。 UE设备或无线网络组件（例如，基站）可以确定覆盖区域的RF上行链路使用值。 RF上行链路使用值可以从一个或多个基站接收，并且可以基于子帧或其他时间段。 处理器可以确定具有最大数量子帧的基站，其中至少一个资源块可用。 如果基站具有相等数量的具有至少一个可用资源块的子帧，则处理器可以确定哪个基站具有最多数量的具有至少两个可用资源块的子帧数量（或者如果存在附加的链接则为三个）。 基站的选择可以基于处理器的确定以及UE设备是否位于覆盖区域的边缘内。
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5.发明授权Use of special random access channel instances for access request interception and forwarding 有权使用特殊的随机访问通道实例进行访问请求拦截和转发公开(公告)号：US09320058B1
公开(公告)日：2016-04-19
申请号：US14258801
申请日：2014-04-22
Applicant: Sprint Spectrum L.P.
Inventor： Muhammad A. Naim , Yu Zhou
IPC: H04W74/08
CPC classification number: H04W74/0833 , H04W74/004 , H04W84/042 , H04W92/20
Abstract: One or more random access channel (RACH) instances may be specially designated for use by mobile terminals that are in threshold poor coverage of an intended base station. Further, one or more other base stations that provide coverage overlapping with, within, or near coverage of the intended base station may be arranged to monitor the one or more specially designated RACH instances for mobile terminal access requests and, upon detecting any such access request, to forward the access request via an inter-base station link to the intended base station. The intended base station may then respond to the mobile terminal access request through a direct downlink communication to the mobile terminal.
Abstract translation: 一个或多个随机接入信道（RACH）实例可以被专门指定为处于预期基站的阈值较差覆盖范围内的移动终端使用。 此外，提供与期望的基站的覆盖范围重叠，在其内或附近的覆盖范围的一个或多个其他基站可以被布置成监视用于移动终端接入请求的一个或多个特别指定的RACH实例，并且在检测到任何这样的接入请求 ，以经由基站间链路将访问请求转发到预期的基站。 然后，预期的基站可以通过到移动终端的直接下行链路通信来响应移动终端接入请求。
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Patent Agency Ranking
6.发明授权公开(公告)号：US09107200B1
公开(公告)日：2015-08-11
申请号：US13964929
申请日：2013-08-12
Applicant: Sprint Spectrum L.P.
Inventor： Muhammad Naim , Yu Zhou , Shahzada Rasool , Anuja Chaand
CPC classification number: H04W72/02
Abstract: A base station of a radio access network (RAN) and a multiband mobile station are configured for wireless communication in a plurality of frequency bands. The RAN selects a configuration of uplink and downlink frequencies for a radio connection between the base station and multiband mobile station. The uplink and downlink frequencies in the selected configuration are in different frequency bands. The RAN may select a frequency band for the uplink frequency based, at least in part, on a distance between the multiband mobile station and the base station. That RAN may select a frequency band for the downlink frequency based, at least in part, on respective downlink loads at the base station for the first, second, and third frequency bands.
Abstract translation: 无线接入网（RAN）和多频带移动台的基站被配置为在多个频带中进行无线通信。 RAN选择基站与多频移动台之间的无线连接的上行链路和下行链路频率的配置。 所选配置中的上行链路和下行链路频率处于不同的频带。 RAN可以至少部分地基于多频带移动站和基站之间的距离来选择用于上行链路频率的频带。 该RAN可以至少部分地基于用于第一，第二和第三频带的基站的相应下行链路负载来选择用于下行链路频率的频带。
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7.发明授权公开(公告)号：US10164814B1
公开(公告)日：2018-12-25
申请号：US15213010
申请日：2016-07-18
Applicant: Sprint Spectrum L.P.
Inventor： Yu Zhou , Muhammad Ahsan Naim , Luca Zappaterra
IPC: H04L27/26 , H04B17/364 , H04W84/04 , H04L5/00
Abstract: Disclosed is a method and system for offset decoding of resource elements in a resource block to compensate for propagation delay in uplink coordinated multipoint service. A determination may be made that the initial data symbol of a time-ordered sequence of N data symbols transmitted by a user equipment device (UE) to a base station (BS) will be received at an arrival time beyond an initial one of N equally-spaced tolerance windows for simultaneous decoding of data symbols received from UEs. If it is determined that the arrival time will be within a subsequent one of the N equally-spaced tolerance windows, then the BS may receive and decode those of the N data symbols with respective arrival times in one of the subsequent tolerance windows. Otherwise, the BS may refrain from decoding any of the N data symbols. The decode data symbols may be merged with those from another BS.
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公开(公告)号：US09967888B1
公开(公告)日：2018-05-08
申请号：US15073263
申请日：2016-03-17
Applicant: Sprint Spectrum L.P.
Inventor： Luca Zappaterra , Yu Zhou , Muhammad A. Naim
CPC classification number: H04W4/70 , H04L5/00 , H04L43/16 , H04W72/1252 , H04W72/1289
Abstract: When a base station has just a small amount of data to transmit to a served UE, the base station will transmit the data to the UE in a DCI message on a PDCCH, rather than using the DCI message to allocate PDSCH resources to carry the data and transmitting the data on the allocated PDSCH resources. Further, the base station could advantageously make use of a standard DCI message format but could transmit the data in DCI message fields that would otherwise be used to allocate PDSCH resources or otherwise to facilitate PDSCH transmission, since those DCI message fields would not be needed when the data is transmitted in the DCI message itself.
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公开(公告)号：US09967306B1
公开(公告)日：2018-05-08
申请号：US15259812
申请日：2016-09-08
Applicant: Sprint Spectrum L.P.
Inventor： Yu Zhou , Luca Zappaterra , Muhammad A. Naim
IPC: H04L29/06
CPC classification number: H04L65/607 , H04L65/4069 , H04L65/602
Abstract: A method for prioritized transmission of redundancy data in a voice-over-packet call. A sending device applies a variable rate codec to generate a sequence of encoded voice frames having varying sizes, and the sending device inserts the encoded voice frames into a sequence of fixed-size packets, one encoded voice frame per packet, resulting in varying left-over payload capacity per packet. The sending device further generates based on each encoded voice frame multiple redundancy blocks to help facilitate recovery of the encoded voice frame. And on a per packet-basis, the sending device selects, from a sliding-window set of recently generated redundancy blocks, one or more redundancy blocks to add into the left-over payload capacity of the packet, with the selecting of each redundancy block being based at least on importance of the voice frame based on which the redundancy block was generated, and the age and size of the redundancy block.
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公开(公告)号：US09955458B1
公开(公告)日：2018-04-24
申请号：US14558866
申请日：2014-12-03
Applicant: Sprint Spectrum L.P.
Inventor： Yu Zhou , Muhammad Ahsan Naim
CPC classification number: H04W72/04 , H04L27/2601
Abstract: A one or more downlink resource elements of a downlink resource block in an orthogonal frequency division multiplexing (OFDM) communication system can be shared by two wireless communication devices (WCDs) by assigning each WCD a different one of two orthogonal modulation axes. To transmit data to two WCDs using the same downlink resource block, a base station may receive a data stream including respective data for each of the WCDs, then modulate the data for one WCD on in-phase modulation axis and modulate that data for the other WCD on the quadrature axis. The two modulation modes can be simultaneously transmitted on a common sub-carrier of an OFDM downlink to both WCDs. Each WCD can demodulate the data on a pre-assigned demodulation axis to recover its intended data. This sharing technique can be applied to some or all of the downlink resource elements of a commonly allocated downlink resource block.
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