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121.发明授权公开(公告)号：US09692581B1
公开(公告)日：2017-06-27
申请号：US14611312
申请日：2015-02-02
申请人： Sprint Spectrum LP
发明人： Yun Sung Kim , Sanghoon Sung , Pinal Tailor , Tri Duong
CPC分类号： H04L5/0073 , H04L5/0005 , H04L5/0032 , H04W56/001
摘要： Systems and methods are described for generating a common subframe pattern in a wireless communication network. Frame numbers associated with a plurality of access nodes operating on the same frequency channel in a coverage area are synchronized. A unique almost blank subframe (ABS) ratio associated with each of the plurality of access nodes is determined. A common subframe pattern may be generated based on the determined unique ABS ratios. The common subframe pattern may be provided to each of the plurality of access nodes operating in the coverage area. Traffic may be scheduled using the generated common subframe pattern and the synchronized frame numbers.
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122.发明授权公开(公告)号：US09668180B1
公开(公告)日：2017-05-30
申请号：US14476858
申请日：2014-09-04
申请人： Sprint Spectrum LP
发明人： Daniel Vivanco , Chunmei Liu , Hemanth Pawar , Krishna Sitaram
IPC分类号： H04W36/00
CPC分类号： H04W36/0083 , H04W24/02
摘要： Systems and methods are described for identifying and resolving cell identifier confusion in a wireless network. A serving cell may determine that multiple neighboring cells have a duplicate cell identifier. The serving cells may receive signal measurement reports and network characteristics for the neighboring cells in order to determine if there is an opportunity for handover between the neighboring cells and the serving cell. If the multiple neighboring cells appear in a single signal measurement report from a single wireless device, there this is an opportunity for handover, and one of the neighboring cells may be instructed to change its cell identifier. However, the network characteristics indicate that the neighboring cell does not have coverage sector overlap, then there is no opportunity for handover and the neighboring cell may be removed from a database used by the serving cell during a handover process.
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公开(公告)号：US09660735B1
公开(公告)日：2017-05-23
申请号：US14856960
申请日：2015-09-17
申请人： Sprint Spectrum LP
发明人： Chunmei Liu , Pratik Kothari , Krishna Sitaram , Hemanth Pawar
CPC分类号： H04B15/00 , H04W36/20 , H04W72/046 , H04W72/082
摘要： Systems and methods are also described for mitigating interference at an access node. It may 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. At least one neighboring cell in which one or more beamformed signals are transmitted is identified as a potential interference source. The identified neighboring cell may be instructed to terminate transmission of a beamformed signal to at least a second wireless device. It may then be determined whether the interference metric for the first wireless device continues to exceed the interference criteria after the termination of the beamformed signal. And the second wireless device may be identified as an interference source when the interference metric for the first wireless device does not continue to exceed the interference criteria.
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公开(公告)号：US09655127B1
公开(公告)日：2017-05-16
申请号：US14575653
申请日：2014-12-18
申请人： Sprint Spectrum L.P.
CPC分类号： H04W72/0486
摘要： Disclosed is a method and system for dynamically managing carrier aggregation based on operating conditions of small cells in a wireless communication system. A first base station may be configured for providing wireless services on a first wireless carrier band and a second wireless carrier band. One or more additional base stations may each configured for providing wireless services on the second wireless carrier band. A determination can be made that a load on the one or more additional base stations exceeds a threshold level while each is providing wireless coverage within a region that at least partially overlaps with wireless coverage provided by the first base station. In response, the first base can be caused to refrain from aggregating the first and second wireless carrier bands for providing wireless services under operational conditions defined to cause the base station to aggregate the first and second wireless carrier bands.
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公开(公告)号：US09629160B1
公开(公告)日：2017-04-18
申请号：US14573174
申请日：2014-12-17
申请人： Sprint Spectrum L.P.
发明人： Volkan Sevindik
CPC分类号： H04W72/0453 , H04L5/00 , H04W72/0486
摘要： Disclosed is a method and system for managing carriers on which a wireless communication system serves a UE. As disclosed, the system serves the UE on a set of one or more carriers. While serving the UE on the set of one or more carriers, the system determines that the UE should additionally be served on at least one other carrier. The system then selects the at least one other carrier, from a set of candidate carriers, based at least in part on the at least one other carrier being closest, of the set of candidate carriers, in the frequency spectrum to the set of one or more carriers. Based on the selecting, the system then adds the selected at least one other carrier to the set of one or more carriers to establish a modified set of carriers and serves the UE on the modified set of carriers.
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公开(公告)号：US09629035B1
公开(公告)日：2017-04-18
申请号：US14080566
申请日：2013-11-14
申请人： Sprint Spectrum L.P.
IPC分类号： H04W36/00
CPC分类号： H04W36/0055 , H04W8/26 , H04W36/0066 , H04W48/20
摘要： An access terminal establishes a session with a first radio access network (RAN). As a result, the access terminal receives a Unicast Access Terminal Identifier (UATI) assigned by the first RAN and establishes configuration settings for radio communications between the access terminal and the first RAN. The access terminal moves from the first RAN to a second RAN. Before the access terminal has a session established with the second RAN, the access terminal receives a request from a user to originate a call. In response, the access terminal sends the second RAN a connection request that includes the UATI assigned by the first RAN. The second RAN evaluates the UATI included in the connection request and determines that it was previously assigned to the access terminal by another RAN. Based on this determination, the second RAN grants the connection request by assigning a traffic channel to the access terminal.
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公开(公告)号：US09622209B1
公开(公告)日：2017-04-11
申请号：US13967790
申请日：2013-08-15
申请人： Sprint Spectrum L.P.
CPC分类号： H04W64/003 , G01S5/00 , H04W84/045
摘要： A method and systems for determining a location of a Low-Cost Internet Base Station (LCIB) are described. An LCIB may engage in communication with a macro network using a wireless communication interface, such that the macro network assigns the LCIB to operate as a mobile station on a particular active set of one or more particular sectors. The LCIB may transmit data indicative of the particular active set to the macro network using a backhaul connection to the macro network. Responsive to the LCIB transmitting the data indicative of the particular active set to the macro network, the LCIB may receive a location corresponding to the particular active set from the macro network via the backhaul connection to the macro network.
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公开(公告)号：US09614651B1
公开(公告)日：2017-04-04
申请号：US14162623
申请日：2014-01-23
申请人： Sprint Spectrum LP
发明人： Daniel Vivanco , Krishna Sitaram
CPC分类号： H04L5/0032 , H04L5/0035
摘要： When a first throughput between the wireless device and a first access node meets a threshold, an application requirement of an application running on the wireless device is determined. Measurements are received of a first signal level of the communication link between the wireless device and the first access node and a second signal level of a signal from a second access node received at the wireless device. A first data rate is estimated using a first communication scheme between the wireless device and the first and second access nodes, and a second data rate is estimated using a second communication scheme between the wireless device and the first and second access nodes. One of the communication schemes is selected for use by the wireless device and the first and second access nodes based on the estimated first data rate and the estimated second data rate and the application requirement.
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公开(公告)号：US09591648B1
公开(公告)日：2017-03-07
申请号：US14531422
申请日：2014-11-03
申请人： Sprint Spectrum L.P.
CPC分类号： H04W72/048 , H04J11/00 , H04J2011/0013 , H04L5/0007 , H04L5/0039 , H04L5/0048 , H04L5/0053 , H04L5/14 , H04W72/10
摘要： An example embodiment may involve defining an orthogonal frequency-division multiplexed (OFDM) wireless air interface that contains time-division multiplexed subframes. A primary signaling channel may be formed by modulation symbols that are statically allocated to fixed time positions of each subframe, and span contiguous subcarrier frequencies. A secondary signaling channel may be defined in the OFDM wireless air interface. The secondary signaling channel may be formed by modulation symbols that are dynamically allocated to time positions of one or more subcarrier frequencies, and span at least two consecutive subframes of the OFDM wireless air interface. A signaling message may be transmitted, on the primary signaling channel, to one or more WCDs. The signaling message may be transmitted in a first subframe of the consecutive subframes, and may identify the secondary signaling channel.
摘要翻译： 一个示例性实施例可以涉及定义包含时分多路复用子帧的正交频分复用（OFDM）无线空中接口。 主信令信道可以由静态分配给每个子帧的固定时间位置并且跨越连续子载波频率的调制符号形成。 可以在OFDM无线空中接口中定义二次信令信道。 辅助信令信道可以由动态分配给一个或多个子载波频率的时间位置并跨越OFDM无线空中接口的至少两个连续子帧的调制符号形成。 信令消息可以在主信令信道上发送到一个或多个WCD。 可以在连续子帧的第一子帧中发送信令消息，并且可以识别次信令信道。
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130.发明授权Method and system for addressing an error condition associated with a service that enables user equipment devices being served by a first access network to engage in signaling with a second access network 有权用于解决与服务相关联的错误状况的方法和系统，其使由第一接入网络服务的用户设备设备与第二接入网络进行信令通信公开(公告)号：US09591548B1
公开(公告)日：2017-03-07
申请号：US14488181
申请日：2014-09-16
申请人： Sprint Spectrum L.P.
发明人： Talat Jamshidi , Wen Xue , Jay D. Cole , Rajat Kumar , Siddharth S. Oroskar , Nitesh Manchanda , Jasinder P. Singh
摘要： In accordance with the disclosed methods and systems, while providing a service that enables user equipment devices (UEs) being served by a first network to engage in signaling with a second network via the first network, a controller or other network entity may detect an error condition associated with the service, such as a threshold-high level of signaling or an interface failure. In response to detecting the error condition, base stations in the first network may then direct one or more UEs being served by the first network to refrain from using the given service. As a result, the one or more UEs may refrain from using the given service and may instead use another approach to engage in signaling with the second network, which may enable the one or more UEs to circumvent the error condition until it gets remedied.
摘要翻译： 根据所公开的方法和系统，当提供使得由第一网络服务的用户设备设备（UE）经由第一网络与第二网络进行信令的服务时，控制器或其他网络实体可以检测到错误 与服务相关联的条件，例如阈值高的信令级别或接口故障。 响应于检测到错误状况，第一网络中的基站然后可以引导由第一网络服务的一个或多个UE来避免使用给定的服务。 结果，一个或多个UE可以避免使用给定的服务，并且可以替代地使用另一种方法来与第二网络进行信令通信，这可以使一个或多个UE绕过错误状况直到得到补救。
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