-
公开(公告)号：EP1695456A1
公开(公告)日：2006-08-30
申请号：EP04775460.1
申请日：2004-09-22
发明人： LARSSON, Peter , SIGNELL, Svante , ASTELY, David
CPC分类号： H04L1/0028 , H04B7/0417 , H04B7/0443 , H04B7/0452 , H04B7/0626 , H04B7/0628 , H04L1/0015 , H04L1/06 , H04W52/42
摘要： Communication in a MIMO network is optimized by selecting a first set of users comprising at least one user, selecting a second set of users not comprised in the first set, adapting communication parameters for the first set of users according to a first principle suitable, e.g. SVD, adapting communication parameters for the sec-ond set of users according to a second principle, e.g. opportunistic MIMO, and transmitting to the first set of user terminals according to the first communication parameters and to the second set of user terminals according to the second commu-nication parameters. In this way, communication with one or a few users can be op-timized while network resources can be used in an efficient way also for other users.
-
公开(公告)号：EP1057253B1
公开(公告)日：2007-08-08
申请号：EP98946753.5
申请日：1998-09-28
发明人： SCHIER, Thorsten , SIGNELL, Svante
IPC分类号： H03D1/00
CPC分类号： H03D7/166 , H03D1/24 , H03D7/161 , H03D7/165 , H03D2200/0054 , H03D2200/0072
摘要： A down-converter converts an amplitude modulated high frequency signal into a low frequency or baseband signal. A first mixer (30, 32) mixes the high frequency signal into a composite signal having an in-phase component and a quadrature component. A complex bandpass filter (34) bandwith limits the composite signal into a bandwidth limited signal with an in-phase component and a quadrature component. A second mixer (36, 38) mixes the bandwidth limited signal into an intermediate signal with an in-phase component and a quadrature component, and an adder (40) adds one component of the intermediate signal to the other. A similar up-conventer performs the reverse process.
-
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.
-
4.发明授权
公开(公告)号：EP1698191B1
公开(公告)日：2009-04-15
申请号：EP03781260.9
申请日：2003-12-22
IPC分类号： H04W8/24
CPC分类号： H04W8/245 , H04M1/72525 , H04W24/06 , H04W88/06
摘要： The present invention relates to a communication device (9) and a method that are capable of downloading and upgrading terminal software of the device (9) over-the-air in a efficient and fail-safe manner. The method for providing such a communication device (9) with radiosoftware from a server (1) via a wireless network (19) including a number of access networks(5, 7) comprises the steps of: initiating a download of radio software of a first radio access technology (15, 17) of the communication device (9); selecting a radio access technology (15, 17)of the communication device (9) for downloading the software; downloading the radio software viathe available radio access technology (15, 17), wherein the radio software designed for the first radioaccess technology (15, 17) is stored in a memory space of the storing means (13). Furthermore, thepresent invention relates to a system in a wireless network (19) including such a communication deviceand a computer readable medium comprising instructions for executing the method according to thepresent invention.
-
5.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.
-
6.发明公开
公开(公告)号：EP1698191A1
公开(公告)日：2006-09-06
申请号：EP03781260.9
申请日：2003-12-22
CPC分类号： H04W8/245 , H04M1/72525 , H04W24/06 , H04W88/06
摘要： The present invention relates to a communication device (9) and a method that are capable of downloading and upgrading terminal software of the device (9) over-the-air in a efficient and fail-safe manner. The method for providing such a communication device (9) with radiosoftware from a server (1) via a wireless network (19) including a number of access networks(5, 7) comprises the steps of: initiating a download of radio software of a first radio access technology (15, 17) of the communication device (9); selecting a radio access technology (15, 17)of the communication device (9) for downloading the software; downloading the radio software viathe available radio access technology (15, 17), wherein the radio software designed for the first radioaccess technology (15, 17) is stored in a memory space of the storing means (13). Furthermore, thepresent invention relates to a system in a wireless network (19) including such a communication deviceand a computer readable medium comprising instructions for executing the method according to thepresent invention.
-
公开(公告)号：EP0920757B1
公开(公告)日：2005-04-06
申请号：EP97944237.3
申请日：1997-09-19
发明人： SIGNELL, Svante , SCHIER, Thorsten
CPC分类号： H04J1/05 , H03H17/0202 , H04L5/06
-
公开(公告)号：EP1695456B1
公开(公告)日：2009-11-11
申请号：EP04775460.1
申请日：2004-09-22
发明人： LARSSON, Peter , SIGNELL, Svante , ASTELY, David
CPC分类号： H04L1/0028 , H04B7/0417 , H04B7/0443 , H04B7/0452 , H04B7/0626 , H04B7/0628 , H04L1/0015 , H04L1/06 , H04W52/42
摘要： Communication in a MIMO network is optimized by selecting a first set of users comprising at least one user, selecting a second set of users not comprised in the first set, adapting communication parameters for the first set of users according to a first principle suitable, e.g. SVD, adapting communication parameters for the sec-ond set of users according to a second principle, e.g. opportunistic MIMO, and transmitting to the first set of user terminals according to the first communication parameters and to the second set of user terminals according to the second commu-nication parameters. In this way, communication with one or a few users can be op-timized while network resources can be used in an efficient way also for other users.
-
公开(公告)号：EP1706919A1
公开(公告)日：2006-10-04
申请号：EP04809125.0
申请日：2004-12-21
发明人： SIGNELL, Svante , LARSSON, Peter
CPC分类号： H01Q21/061 , H01Q1/246 , H01Q19/104 , H01Q19/28 , H01Q21/065 , H01Q21/22 , H01Q21/28 , H01Q25/00 , H04B7/02 , H04B7/04
摘要： The present invention relates to high data rate communications, and more especially it relates to line of sight, LOS, multiple input multiple output, MIMO, communications links and antenna configuration for LOS MIMO links, particularly radio links and optical wireless links.
-
10.发明公开PROGRAMMABLE ANALOG BANDPASS FILTERING APPARATUS AND METHOD AND DESIGN METHOD FOR A DISCRETE TIME FILTER 失效可调模拟带通滤波设备关联，一时间，离散滤波器方法和设计方法
公开(公告)号：EP0958655A1
公开(公告)日：1999-11-24
申请号：EP98904455.0
申请日：1998-01-16
发明人： SIGNELL, Svante , SCHIER, Thorsten
IPC分类号： H03H17
CPC分类号： H03H17/02
摘要： A desired programmable complex analog bandpass filter (10) is replaced by a 'black box' that receives an analog continuous-time signal and delivers an analog continuous-time signal, just as the analog filter would, but internally realizes the programmability with a programmable discrete-time system. The transfer function of the 'black box' is the same as the transfer function of the analog filter. The 'black box' includes an anti-aliasing filter (12), an A/D-converter (14), a complex digital bandpass filter (16), a D/A-converter (18) and an anti-imaging filter (20).
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.014 秒)
