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公开(公告)号：US10069575B1
公开(公告)日：2018-09-04
申请号：US15446324
申请日：2017-03-01
申请人： Alcatel Lucent
发明人： Adrian J. Garcia Rodriguez , Giovanni Geraci , David Lopez Perez , Lorenzo Galati Giordano , Andrea Bonfante
摘要： A node is configured to be connected to a massive multiple-input, multiple-output (MIMO) array to provide spatially multiplexed channels to a plurality of user equipment in an unlicensed frequency band. The node includes a processor configured to allocate a number of degrees of freedom of the massive MIMO array to interference suppression based on an outcome of a first listen-before-talk (LBT) operation performed by the node to acquire the unlicensed frequency band. The processor is also configured to generate a spatial filter based on the number of degrees of freedom allocated to interference suppression. The node also includes a transceiver configured to perform a second LBT operation using the spatial filter.
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公开(公告)号：US10039124B2
公开(公告)日：2018-07-31
申请号：US15167122
申请日：2016-05-27
申请人： Alcatel Lucent
CPC分类号： H04W72/1215 , H04W16/14 , H04W74/0808
摘要： A first node that operates according to a first radio access technology (RAT) provides a first schedule to a second node that operates according to a second RAT. The first schedule requests a first portion of a subsequent time interval for transmission in an unlicensed frequency band. The first node receives one or more second schedules from a second node. The one or more second schedules request one or more second portions of the subsequent time interval for transmission in the unlicensed frequency band. The first node transmits signals in the unlicensed frequency bands during a third portion of the subsequent time interval that is determined based on the at least one second portion.
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公开(公告)号：US10034176B2
公开(公告)日：2018-07-24
申请号：US15056167
申请日：2016-02-29
摘要： A controller in a wireless communication system includes a transceiver to receive channel activity reports from a first node and a plurality of second nodes that are connected to the first node. The first node supports wireless communication over one or more first channels of a licensed frequency band and second channels of an unlicensed frequency band. The second node supports wireless communication over the second channels of the unlicensed frequency band. The controller also includes a processor to allocate a subset of the second channels to the first node and the plurality of second nodes based on the channel activity reports.
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公开(公告)号：US09769713B2
公开(公告)日：2017-09-19
申请号：US13048725
申请日：2011-03-15
申请人： Suresh P. Nair , Peretz Feder
发明人： Suresh P. Nair , Peretz Feder
CPC分类号： H04W36/0033 , H04L63/0892 , H04W12/06 , H04W36/0038 , H04W48/20 , H04W92/22
摘要： The present invention provides a method of relocating functional entities in access service networks during mobility events. One embodiment of the method includes providing context information representative of two or more functional entities from a source access service network (ASN) to a target ASN. Another embodiment of the method includes receiving context information representative of two or more functional entities at a target ASN from a source ASN. The context information for the functional entities is associated with an access terminal and is provided in response to the source ASN receiving a relocation notification from the target ASN as a result of a handoff request or a location update message.
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公开(公告)号：US09628481B2
公开(公告)日：2017-04-18
申请号：US14944103
申请日：2015-11-17
CPC分类号： H04L63/0876 , H04L9/0631 , H04L9/0836 , H04L9/0844 , H04L9/3242 , H04L63/061 , H04L2209/80
摘要： The present invention provides a method of operating a mobile unit in a wireless communication system. Embodiments of the method may include providing access request message(s) including information indicative of a first counter and a message authentication code formed using a first key. The first key is derived from a second key and the first counter. The second key is derived from a third key established for a security session between the mobile unit and an authenticator. The first counter is incremented in response to each access request provided by the mobile unit.
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公开(公告)号：US09560390B2
公开(公告)日：2017-01-31
申请号：US14324836
申请日：2014-07-07
发明人： Urs Niesen , Mohammadali Maddahali
IPC分类号： H04N5/76 , H04N21/231 , H04N21/6405 , H04N21/2347 , H04N21/854 , H04N21/262 , H04N21/845
CPC分类号： H04N21/23106 , H04N21/2347 , H04N21/26216 , H04N21/26241 , H04N21/6405 , H04N21/8456 , H04N21/854
摘要： A server generates a combination of symbols requested by a set of users in response to the symbols requested by each user in the set being cached by the other users in the set. A transmitter in the server multicasts the combination of symbols to the set of users based on a transmission deadline associated with the set of users.
摘要翻译： 服务器响应于集合中被该组中的其他用户缓存的集合中的每个用户请求的符号，生成一组用户请求的符号的组合。 服务器中的发射机基于与该组用户相关联的传输期限，将符号组合多播到该用户组。
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7.发明授权公开(公告)号：US09559871B2
公开(公告)日：2017-01-31
申请号：US11329375
申请日：2006-01-10
CPC分类号： H04L25/0204 , H04B7/0857 , H04L25/03343 , H04L2025/03414 , H04L2025/03426
摘要： A method and an apparatus for using a plurality of antennas to equalize a composite propagation channel of a wideband wireless communication is provided. The method comprises adjusting a corresponding weight associated with at least two of the plurality of antennas to obtain a channel response from the plurality of antennas over a composite propagation channel. The method further comprises equalizing the channel response of the composite propagation channel over a given bandwidth based on the corresponding weights for the wireless communication over a wideband frequency range. By adjusting a complex weight associated with each of the set of transmit antennas, a wireless communication system may obtain a channel response from the plurality of antennas over the composite propagation channel. In this way, the wireless communication system may combine multiple antenna signals from the set of transmit antennas with the complex weights to provide an overall transfer function that is substantially flat over a given bandwidth.
摘要翻译： 提供了一种使用多个天线来均衡宽带无线通信的复合传播信道的方法和装置。 该方法包括调整与多个天线中的至少两个天线相关联的对应权重，以通过复合传播信道从多个天线获得信道响应。 该方法还包括基于用于宽带频率范围上的无线通信的相应权重，在给定带宽上均衡复合传播信道的信道响应。 通过调整与每组发射天线相关联的复权，无线通信系统可以通过复合传播信道从多个天线获得信道响应。 以这种方式，无线通信系统可以组合来自发射天线组的多个天线信号与复权重，以提供在给定带宽上基本平坦的总体传递函数。
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8.发明授权公开(公告)号：US09544898B2
公开(公告)日：2017-01-10
申请号：US14328534
申请日：2014-07-10
申请人： Teck Hu , Shin Horng Wong
发明人： Teck Hu , Shin Horng Wong
IPC分类号： H04W36/08 , H04W72/04 , H04L5/00 , H04W24/08 , H04W74/08 , H04W16/14 , H04W28/26 , H04W92/20
CPC分类号： H04W72/0453 , H04L5/0032 , H04W16/14 , H04W24/08 , H04W28/26 , H04W72/0426 , H04W74/0816 , H04W92/20
摘要： Base stations can exchange information indicating that the base stations are transmitting (or going to transmit) downlink signals over one or more unlicensed frequency bands. For example, a first indication that a first base station is reserving a first subset of a plurality of unlicensed frequency bands for downlink transmission can be transmitted over one or more interfaces between the first base station and one or more second base stations. The one or more second base stations can then refrain from transmitting potentially interfering downlink transmissions over the first subset of the plurality of unlicensed frequency bands. Information identifying the first subset may be stored by the one or more second base stations.
摘要翻译： 基站可以交换指示基站正在一个或多个非许可频带上发送（或将发送）下行链路信号的信息。 例如，可以通过第一基站和一个或多个第二基站之间的一个或多个接口来发送第一基站正在保留用于下行链路传输的多个未许可频带的第一子集的第一指示。 然后，一个或多个第二基站可以避免在多个非许可频带的第一子集上发送潜在的干扰下行链路传输。 识别第一子集的信息可以由一个或多个第二基站存储。
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公开(公告)号：US09451570B2
公开(公告)日：2016-09-20
申请号：US13598199
申请日：2012-08-29
申请人： Fang-Chen Cheng , Said Tatesh
发明人： Fang-Chen Cheng , Said Tatesh
CPC分类号： H04W56/002 , H04W8/005 , H04W76/14
摘要： Embodiments of the claimed subject matter provide a method and apparatus for device discovery in device-to-device (D2D) communication. One embodiment of the method includes generating first information indicative of a first synchronization signal in response to a request from a first user equipment to be authenticated for D2D communication with one or more second user equipment. The first information corresponds to a sequence used to generate a primary synchronization signal for transmission by a serving cell for the first user equipment. This embodiment of the method also includes providing the first information to the first user equipment so that the first user equipment can transmit the first synchronization signal.
摘要翻译： 所要求保护的主题的实施例提供了在设备到设备（D2D）通信中用于设备发现的方法和装置。 所述方法的一个实施例包括响应于来自第一用户设备的请求生成指示第一同步信号的第一信息以被认证用于与一个或多个第二用户设备的D2D通信。 第一信息对应于用于生成用于第一用户设备的服务小区进行传输的主同步信号的序列。 该方法的该实施例还包括向第一用户设备提供第一信息，使得第一用户设备可以发送第一同步信号。
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公开(公告)号：US09450844B2
公开(公告)日：2016-09-20
申请号：US14315814
申请日：2014-06-26
发明人： Fang-Chen Cheng , Sudeep Palat
CPC分类号： H04L43/0823 , H04L12/1863 , H04L12/189 , H04W4/06
摘要： User equipment measure a characteristic of a multicast signal or a broadcast signal at a physical layer of user equipment for a multicast broadcast single frequency network (MBSFN) area associated with the user equipment. The user equipment provide a value of the measured characteristic from the user equipment in response to the value indicating that a probability of an application layer decoding error exceeds a first threshold. The measured characteristic may be a block error rate (BLER) or a signal-to-interference ratio (SIR) for the multicast signal or the broadcast signal.
摘要翻译： 用户设备在用户设备的物理层测量与用户设备相关联的组播广播单频网络（MBSFN）区域中的多播信号或广播信号的特性。 响应于指示应用层解码错误的概率超过第一阈值的值，用户设备从用户设备提供测量特性的值。 所测量的特性可以是组播信号或广播信号的块差错率（BLER）或信号干扰比（SIR）。
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