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1.发明公开
公开(公告)号：EP2904874A1
公开(公告)日：2015-08-12
申请号：EP12783684.9
申请日：2012-10-05
摘要： A device-to-device communication cluster of a plurality of communication devices comprises the first communication device and one or more other communication devices and a specific one of the plurality of communication devices performs a network control signal gateway function for the device-to-device communication cluster. The network control signal gateway function comprises receiving downlink control signals from a network node of the cellular network, transmitting uplink control signals to the network node of the cellular network, and operating control signaling within the device-to-device communication cluster in association with the downlink and uplink control signals.
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2.发明公开A USER EQUIPMENT, A NETWORK NODE AND METHODS FOR DEVICE DISCOVERY IN A DEVICE-TO-DEVICE (D2D) COMMUNICATION IN A WIRELESS TELECOMMUNICATIONS NETWORK 审中-公开用户设备用于检测装置的网络节点和方法D2D通信在无线电信网络
公开(公告)号：EP2904858A1
公开(公告)日：2015-08-12
申请号：EP12783373.9
申请日：2012-10-01
CPC分类号： H04W52/243 , H04W8/005 , H04W48/12 , H04W52/288 , H04W52/32 , H04W52/36 , H04W52/383 , H04W52/386 , H04W52/50 , H04W88/06 , H04W88/10
摘要： A first user equipment transmits a beacon signal to be detected by at least one second user equipment for Device-to-Device, D2D, communication in a wireless telecommunications network. The first user equipment transmits the beacon signal in transmission bursts with a first energy level, where the transmission bursts are transmitted continually over time in order to enable detection of the beacon signal by the at least one second user equipment. The first user equipment then increases the energy of the transmission bursts at one or more intervals to a second energy level such that transmission bursts with the first energy level is alternated with transmission bursts with the second energy level, and such that transmission bursts with the first energy level recur more frequently over time than transmission bursts with a second energy level. A user equipment, a network node and a method in the network node are also provided.
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3.发明公开METHOD AND APPARATUS FOR ALLOCATING A PILOT SIGNAL ADAPTED TO THE CHANNEL CHARACTERISTICS 有权FOR AN的方法和设备分配给信道特性改编的导频信号
公开(公告)号：EP1695587A1
公开(公告)日：2006-08-30
申请号：EP04804625.4
申请日：2004-12-01
发明人： NYSTRÖM, Johan , SIGNELL, Svante , KLANG, Göran , FRENGER, Päl , DAHLMAN, Erik
IPC分类号： H04Q7/38
CPC分类号： H04L5/0048 , H04L1/0026 , H04L5/0007 , H04L5/006 , H04L25/0226 , H04W16/02 , H04W16/10 , H04W16/12 , H04W52/325 , H04W72/08
摘要： A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.
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4.发明授权Search window delay tracking in code division multiple access communication systems 有权码分多址通信系统中的搜索窗延迟跟踪
公开(公告)号：EP1082820B1
公开(公告)日：2006-08-23
申请号：EP99948574.1
申请日：1999-04-29
IPC分类号： H04B1/707
CPC分类号： H04B1/7085 , G01S5/0215 , H04B1/7113 , H04B1/7117
摘要： The present invention provides a search window delay tracking procedure for use in a multipath search processor of a CDMA radio receiver. A channel impulse response is estimated for a received signal containing plural paths, each path having a corresponding path delay. A search window defines a delay profile that contains the plural paths of the received signal. A mean or average delay is calculated for the estimated channel impulse response (CIR), and an error is determined between the mean CIR delay and a desired delay position corresponding to the center of the CIR search window. An adjustment is made to reduce that error so that the center of the search window and the mean CIR delay are aligned. The error may be processed either linearly (in one embodiment) or non-linearly (in another embodiment) to minimize the error and to reduce an influence of noise. A non-linear filtering process includes calculating a delay spread from the mean CIR delay calculated for successive processing cycles of a window delay tracking procedure corresponding to each new input. A difference is determined between the successive delay spreads. Adjustment signal is set equal to the error signal if the difference is less than or equal to a threshold. Alternatively, the adjustment signal is set to zero if the difference is greater than the threshold. Consequently, if the delay spread in the current iteration is significantly different from the delay spread in the previous iteration, the new error sample calculated in the current iteration is considered unreliable, and no adjustment is made.
摘要翻译： 本发明提供了用于CDMA无线电接收机的多路径搜索处理器中的搜索窗口延迟跟踪过程。 为包含多个路径的接收信号估计信道脉冲响应，每个路径具有对应的路径延迟。 搜索窗口定义了包含接收信号的多个路径的延迟分布。 计算估计的信道脉冲响应（CIR）的平均或平均延迟，并且在平均CIR延迟和对应于CIR搜索窗口的中心的期望延迟位置之间确定误差。 进行调整以减少该错误，使得搜索窗口的中心和平均CIR延迟对齐。 可以线性地（在一个实施例中）或非线性地（在另一个实施例中）处理该误差以最小化误差并且减少噪声的影响。 非线性滤波处理包括根据对应于每个新输入的窗延迟追踪过程的连续处理循环计算的平均CIR延迟来计算延迟扩展。 在连续的延迟差值之间确定差值。 如果差值小于或等于阈值，则将调整信号设置为等于误差信号。 或者，如果差值大于阈值，则调整信号被设置为零。 因此，如果当前迭代中的延迟扩展与先前迭代中的延迟扩展明显不同，则在当前迭代中计算的新的误差样本被认为是不可靠的，并且不进行调整。
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公开(公告)号：EP2901720B1
公开(公告)日：2019-07-17
申请号：EP12783679.9
申请日：2012-09-25
发明人： KLANG, Göran , BALDEMAIR, Robert
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公开(公告)号：EP2904874B1
公开(公告)日：2018-12-05
申请号：EP12783684.9
申请日：2012-10-05
摘要： A device-to-device communication cluster of a plurality of communication devices comprises the first communication device and one or more other communication devices and a specific one of the plurality of communication devices performs a network control signal gateway function for the device-to-device communication cluster. The network control signal gateway function comprises receiving downlink control signals from a network node of the cellular network, transmitting uplink control signals to the network node of the cellular network, and operating control signaling within the device-to-device communication cluster in association with the downlink and uplink control signals.
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7.发明授权METHOD AND APPARATUS FOR ALLOCATING A PILOT SIGNAL ADAPTED TO THE CHANNEL CHARACTERISTICS 有权FOR AN的方法和设备分配给信道特性改编的导频信号
公开(公告)号：EP1695587B1
公开(公告)日：2009-04-15
申请号：EP04804625.4
申请日：2004-12-01
发明人： NYSTRÖM, Johan , SIGNELL, Svante , KLANG, Göran , FRENGER, Päl , DAHLMAN, Erik
IPC分类号： H04W16/02
CPC分类号： H04L5/0048 , H04L1/0026 , H04L5/0007 , H04L5/006 , H04L25/0226 , H04W16/02 , H04W16/10 , H04W16/12 , H04W52/325 , H04W72/08
摘要： A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.
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公开(公告)号：EP2904858B1
公开(公告)日：2019-07-31
申请号：EP12783373.9
申请日：2012-10-01
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9.发明授权
公开(公告)号：EP1121767B1
公开(公告)日：2007-12-26
申请号：EP99956456.0
申请日：1999-10-12
发明人： KLANG, Göran , KONRADSSON, Per
IPC分类号： H04B1/707
CPC分类号： H04B1/7085 , H04B1/7113 , H04B1/7115 , H04B1/7117
摘要： A CDMA receiver includes a plurality of RAKE branches for despreading the received CDMA signals over a corresponding plurality of paths and a single tracking device that is shared among the plurality of the RAKE branches for tracking the delays of the received CDMA signal over a corresponding path. Similarly, a method for tracking a CDMA signal correlates the received signal with local PN code using a plurality of RAKE branches and tracks the received signal using a single tracking device that is shared among the plurality of the RAKE branches.
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10.发明公开
公开(公告)号：EP1121767A1
公开(公告)日：2001-08-08
申请号：EP99956456.0
申请日：1999-10-12
发明人： KLANG, Göran , KONRADSSON, Per
IPC分类号： H04B1/707
CPC分类号： H04B1/7085 , H04B1/7113 , H04B1/7115 , H04B1/7117
摘要： A CDMA receiver includes a plurality of RAKE branches for despreading the received CDMA signals over a corresponding plurality of paths and a single tracking device that is shared among the plurality of the RAKE branches for tracking the delays of the received CDMA signal over a corresponding path. Similarly, a method for tracking a CDMA signal correlates the received signal with local PN code using a plurality of RAKE branches and tracks the received signal using a single tracking device that is shared among the plurality of the RAKE branches.
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