专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2007136306A1 METHOD AND ARRANGEMENT IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：通信系统中的方法和布置
公开(公告)号：WO2007136306A1
公开(公告)日：2007-11-29
申请号：PCT/SE2006/000584
申请日：2006-05-19
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , AXNÄS, Johan , JOHANSSON, Niklas , NYSTRÖM, Johan , SKILLERMARK, Per , SUNELL, Kai-Erik
发明人： AXNÄS, Johan , JOHANSSON, Niklas , NYSTRÖM, Johan , SKILLERMARK, Per , SUNELL, Kai-Erik
IPC分类号： H04L27/26 , H04B1/26 , H04L12/28 , H04Q7/38
CPC分类号： H04L27/2602 , H04L5/0012 , H04L5/0053 , H04L5/0094 , H04L27/2613 , H04W48/08
摘要： The object of the present invention is to provide a mechanism for a more efficient carrier search. The object is achieved by a method for sending a signal in a first node. The first node communicates with a second node via radio communication, which radio communication is performed by multi carrier transmission. The first node uses a carrier, being associated with a frequency range. The method comprises the step of transmitting an end-marker signal within or close to the frequency range. The end-marker signal is intended to be received and used by the second node for identifying the frequency range of the used carrier.
摘要翻译：本发明的目的是提供一种用于更有效的载波搜索的机制。该目的通过用于在第一节点中发送信号的方法来实现。第一节点通过无线电通信与第二节点进行通信，该无线电通信是通过多载波传输进行的。第一个节点使用与频率范围相关联的载波。该方法包括在频率范围内或接近频率范围内发送结束标记信号的步骤。终端标记信号旨在由第二节点接收和使用，用于识别所使用的载波的频率范围。

2. 发明申请

WO2011077288A3 FLEXIBLE SUBFRAMES 审中-公开
公开(公告)号：WO2011077288A3
公开(公告)日：2011-06-30
申请号：PCT/IB2010/055346
申请日：2010-11-22
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , PARKVALL, Stefan , DAHLMAN, Erik , RAHMAN, Muhammad, Imadur , ASTELY, David , NYSTRÖM, Johan , SKÖLD, Johan , SELÉN, Yngve
发明人： PARKVALL, Stefan , DAHLMAN, Erik , RAHMAN, Muhammad, Imadur , ASTELY, David , NYSTRÖM, Johan , SKÖLD, Johan , SELÉN, Yngve
IPC分类号： H04B7/26
摘要： The technology disclosed provides the ability for a subframe to be configured as a "flexible" subframe. As a result, at least three different types of sub frames in a TDD system may be configured: a downlink ("DL") subframe, an uplink ("UL") subframe, and a "flexible" subframe. While the DL and UL subframes are preconfigured for each frame instance, the flexible subframes are dynamically allocated to be an uplink subframe in one instance of a frame and a downlink subframe in another instance of the frame.

3. 发明申请

WO2009035399A1 IMPROVED USE OF SUBFRAMES IN A CELLULAR COMMUNICATIONS SYSTEM 审中-公开
标题翻译：改进细胞在细胞通信系统中的使用
公开(公告)号：WO2009035399A1
公开(公告)日：2009-03-19
申请号：PCT/SE2008/050276
申请日：2008-03-13
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , ASTELY, David , PARKVALL, Stefan , NYSTRÖM, Johan
发明人： ASTELY, David , PARKVALL, Stefan , NYSTRÖM, Johan
IPC分类号： H04L1/00 , H04B7/26 , H04J3/00
CPC分类号： H04M9/025 , H04B7/2656 , H04L5/14 , H04W72/04 , H04W72/1263
摘要： The invention discloses a method (500) for a cellular communications system (100), in which traffic is sent in frames (200), each frame comprising a first number of subframes (201-210), with a second number of said subframes being available for at least either uplink or downlink traffic. At least one of said second number of subframes is made to comprise at least three parts (515), as follows: • One part (520) which is utilized for uplink traffic, • One part (525) which is utilized for downlink traffic, • One part (530) which is utilized as a guard period, with said guard period part (525) being scheduled between the uplink and the downlink parts. The duration of at least two of said three parts (520, 525, 530) may be varied to fit the current system need.
摘要翻译：本发明公开了一种用于蜂窝通信系统（100）的方法（500），其中在帧（200）中发送业务，每个帧包括第一数量的子帧（201-210），其中第二数量的所述子帧是可用于至少上行链路或下行链路业务。所述第二数量的子帧中的至少一个被制成包括至少三个部分（515），如下：用于上行链路业务的一部分（520），用于下行链路业务的一部分（525），一部分（530），其被用作保护周期，所述保护周期部分（525）被调度在上行链路和下行链路部分之间。可以改变所述三个部分（520,525,530）中的至少两个的持续时间以适应当前的系统需要。

4. 发明申请

WO2008085092A1 SYNCHRONISATION IN OFDM USING POLYNOMIAL CANCELLATION CODING 审中-公开
标题翻译：使用多项取消编码的OFDM同步
公开(公告)号：WO2008085092A1
公开(公告)日：2008-07-17
申请号：PCT/SE2007/050006
申请日：2007-01-09
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LEI, Wan , ALMGREN, Magnus , NYSTRÖM, Johan
发明人： LEI, Wan , ALMGREN, Magnus , NYSTRÖM, Johan
IPC分类号： H04L27/26
CPC分类号： H04L27/2647 , H04L5/0044 , H04L27/2602 , H04L27/2662
摘要： In a method of enabling synchronization for a channel in an OFDM based telecommunication system initially providing (SO) a symbol for transmission and selecting (S1) at least two carrier frequencies, subsequently determining (S2) a respective weighting parameter for the selected frequencies and finally transmitting (S3) the symbol on all selected frequencies based on the weighting parameters.
摘要翻译：在基于OFDM的电信系统中的信道同步的方法中，该电信系统最初提供（SO）符号用于传输和选择（S1）至少两个载波频率，随后确定（S2）所选频率的相应权重参数基于加权参数在所有选定频率上发送（S3）符号。

5. 发明申请

WO2005060283A1 RELAY STATION AND METHOD FOR ENABLING RELIABLE DIGITAL COMMUNICATIONS BETWEEN TWO NODES IN A WIRELESS RELAY BASED NETWORK 审中-公开
标题翻译：在无线中继网络中实现两个可靠数字通信的继电器和方法
公开(公告)号：WO2005060283A1
公开(公告)日：2005-06-30
申请号：PCT/SE2003/002038
申请日：2003-12-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , NYSTRÖM, Johan , FRENGER, Pål
发明人： NYSTRÖM, Johan , FRENGER, Pål
IPC分类号： H04Q7/22
CPC分类号： H03M13/3905 , H03M13/45 , H04B7/155 , H04B7/2606 , H04L1/0041 , H04L1/0045 , H04L1/0055 , H04L1/0082 , H04L1/18 , H04L1/1845 , H04L2001/0097 , H04W16/26
摘要： A relay station (606, 806a, 806b, 906a, 906b, 1006 and 1106) and a method (700) are described herein that enables reliable digital communications to occur between two nodes in a wireless relay based network (600, 800, 900, 1000 and 1100). The wireless relay based network includes a first node (602, 802, 902, 1002 and 1102) that transmits information in coded/modulated digital communications to a second node (604, 804, 904, 1004 and 1104) via one or more relay stations. And, each relay station is capable of: (1) receiving (702) a coded/modulated digital communication from the first node; (2) computing (704) a plurality of reliability values for a plurality of information symbols or coded symbols in the received coded/modulated digital communication; and (3) transmitting (706) a coded/modulated digital communication that has the computed reliability values embedded therein to the second node.
摘要翻译：本文描述了一种中继站（606,806a，806b，906a，906b，1006和1106）以及方法（700），其使得能够在基于无线中继的网络中的两个节点之间进行可靠的数字通信（600,800,900， 1000和1100）。基于无线中继的网络包括经编码/调制数字通信中的信息经由一个或多个中继站（604,804,904,1004和1104）向第二节点（604,804,904,1004和1104）发送信息的第一节点（602,802,902,1002和1102）。并且，每个中继站能够：（1）从第一节点接收（702）编码/调制的数字通信; （2）在接收到的编码/调制数字通信中对多个信息符号或编码符号计算（704）多个可靠性值; 和（3）将嵌入其中的计算的可靠性值的编码/调制数字通信发送（706）到第二节点。

6. 发明申请

WO2005060298A1 METHOD AND APPARATUS FOR ALLOCATING A PILOT SIGNAL ADAPTED TO THE CHANNEL CHARACTERISTICS 审中-公开
标题翻译：分配适用于通道特性的试点信号的方法和装置
公开(公告)号：WO2005060298A1
公开(公告)日：2005-06-30
申请号：PCT/EP2004/053192
申请日：2004-12-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , NYSTRÖM, Johan , SIGNELL, Svante , KLANG, Göran , FRENGER, Pål , DAHLMAN, Erik
发明人： NYSTRÖM, Johan , SIGNELL, Svante , KLANG, Göran , FRENGER, Pål , 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.
摘要翻译：一组不同的导频结构被设计用于不同环境和/或预期在小区中发生的不同用户行为。估计用户的无线电条件。然后，在用于其通信的资源空间中为每个用户分配一个区域（108A-E），该区域具有合适的导频配置。在一个实施例中，整个资源空间在不同部分（110A-D）中设置有不同的导频结构。然后提前向用户分配资源，以便将估计的无线电条件与所提供的导频结构相匹配。在另一个实施例中，首先执行分配，然后在所分配的资源空间区域内适配实际的导频结构以适应环境条件。

7. 发明申请

WO2005060195A1 METHOD AND APPARATUS IN A CELLULAR TELECOMMUNICATIONS SYSTEM 审中-公开
标题翻译：细胞通信系统中的方法和装置
公开(公告)号：WO2005060195A1
公开(公告)日：2005-06-30
申请号：PCT/SE2003/002029
申请日：2003-12-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , NYSTRÖM, Johan , KLANG, Göran, N. , FRENGER, Pål
发明人： NYSTRÖM, Johan , KLANG, Göran, N. , FRENGER, Pål
IPC分类号： H04L27/26
CPC分类号： H04L5/0044 , H04L5/0007 , H04L27/261 , H04W16/00 , H04W16/12
摘要： A method for use in a cellular, FFT based multi-carrier communications system comprising N sub-carriers, for allocating a set P of sub-carriers to be reserved for potential use as carriers of specific information, comprises the following steps:- selecting a number M indicating the number of sub-carriers to be allocated to a set P of sub-carriers, such that L=N/M is an integer- allocating the at least two subcarriers of the set P={(n 0 +m*L) mod N : 0≤m 0 being the offset of the lowest numbered subcarrier in P, the elements of P being indices, each referring to the number of a sub-carrier to be allocated. An apparatus for carrying out the method is also disclosed. According to the invention, the sub-channels are maximally spread in frequency, which gives maximum diversity and also enables the use of low-complexity terminals.
摘要翻译：一种用于基于蜂窝，基于FFT的多载波通信系统的方法，包括：N个子载波，用于分配要用于潜在用途的子载波的集合P作为特定信息的载体，包括以下步骤： - 选择数字M指示要分配给子载波的集合P的子载波的数量，使得L = N / M是整数 - 分配集合的至少两个子载波P = {（n0 + m * L ）mod N：0 <= m

8. 发明申请

WO2005060194A1 WIRELESS MULTICARRIER SYSTEM WITH SUBCARRIERS RESERVED FOR COMMUNICATION BETWEEN UNSYNCHRONIZED NODES 审中-公开
标题翻译：无线多媒体系统，用于在不同的节点之间进行通信保留的子节点
公开(公告)号：WO2005060194A1
公开(公告)日：2005-06-30
申请号：PCT/EP2004/053193
申请日：2004-12-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , NYSTRÖM, Johan , FRENGER, Pål , DAHLMAN, Erik
发明人： NYSTRÖM, Johan , FRENGER, Pål , DAHLMAN, Erik
IPC分类号： H04L27/26
CPC分类号： H04L27/30 , H04L5/0053 , H04L5/0091 , H04L27/2626 , H04L27/2647
摘要： In a system applying orthogonal frequency division multiplexing, OFDM, a number of carriers are reserved for communication between unsynchronised nodes (N1, N2). At least one such reserved carrier is assigned to each base station. A sinusoidal signal is transmitted on this reserved carrier during a time period at least equal to two consecutive OFDM symbols. The unsynchronised receiver detects the sinusoidal signal during one of two consecutive OFDM symbol time periods. The existence, the frequency and the signal power of the signal give information about the existence and Identity of the transmitter. Also, estimates of relative velocities and distances can be deduced. In preferred embodiments, the sinusoidal signal can also be used to transmit further information by using signal modulation or coding that is independent of the absolute signal phase.
摘要翻译：在应用正交频分复用的OFDM系统中，为了在非同步节点（N1，N2）之间进行通信，保留了多个载波。至少一个这样的预留载体被分配给每个基站。在至少等于两个连续OFDM符号的时间周期内，在该保留载波上发送正弦信号。在两个连续的OFDM符号时间段之一期间，非同步接收机检测正弦信号。信号的存在，频率和信号功率给出关于发射机的存在和身份的信息。此外，可以推导出相对速度和距离的估计。在优选实施例中，正弦信号还可以用于通过使用独立于绝对信号相位的信号调制或编码来发送进一步的信息。

9. 发明申请

WO2009145685A1 POLARIZATION CO-ORDINATION 审中-公开
标题翻译：极化协调
公开(公告)号：WO2009145685A1
公开(公告)日：2009-12-03
申请号：PCT/SE2008/050626
申请日：2008-05-28
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , ASPLUND, Henrik , ASTELY, David , NYSTRÖM, Johan , TYNDERFELDT, Tobias
发明人： ASPLUND, Henrik , ASTELY, David , NYSTRÖM, Johan , TYNDERFELDT, Tobias
IPC分类号： H04L5/04 , H01Q21/24 , H04B7/10 , H04L5/26 , H04B1/38 , H04L5/06
CPC分类号： H04B7/10 , H01Q1/246 , H01Q21/24 , H04L5/04 , H04L5/06
摘要： The present invention relates to a group (G1, G2) of at least two transceiver units (1, 2; 3, 4) in at least one wireless communication system. The transceiver units (1, 2; 3, 4) in the group (G1, G2) are arranged for wireless communication with at least one other transceiver unit. The transceiver units (1, 2; 3, 4) in the group (G1, G2) are arranged to transmit signals with polarizations that are essentially parallel to each other when received by at least one transceiver unit for which the transmitted signals (5, 6) constitutes interference. The present invention also relates to a method, a node and a transceiver unit.
摘要翻译：本发明涉及至少一个无线通信系统中至少两个收发器单元（1,2; 3,4）的组（G1，G2）。组（G1，G2）中的收发器单元（1,2; 3,4）被布置用于与至少一个其他收发器单元的无线通信。组（G1，G2）中的收发器单元（1，2; 3，4）被布置成在由至少一个收发器单元接收时发射具有基本上彼此平行的偏振的信号， 6）构成了干扰。本发明还涉及一种方法，节点和收发机单元。

10. 发明申请

WO2005101882A1 DYNAMIC ALLOCATION OF RADIO RESOURCES 审中-公开
标题翻译：无线电资源的动态分配
公开(公告)号：WO2005101882A1
公开(公告)日：2005-10-27
申请号：PCT/EP2005/051408
申请日：2005-03-29
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , NYSTRÖM, Johan , KLANG, Göran , FRENGER, Pål , PARKVALL, Stefan
发明人： NYSTRÖM, Johan , KLANG, Göran , FRENGER, Pål , PARKVALL, Stefan
IPC分类号： H04Q7/38
CPC分类号： H04W16/10 , H04W72/08
摘要： Radio resources are allocated to communication between a mobile station (40) and a base station (20). The available set of radio resources may comprise radio resources primarily assigned to a neighbouring cell if the 5 mobile station (40) experience an instantaneous low level of co-channel interference from such neighbouring cells. The existence of interference is preferably deduced from signal quality measurements of pilot signals. The allocation may concern uplink and/or downlink (54) communication. Devices (41) for performing the measurements are located in the mobile station (40), while devices for performing the evaluation (22), selection (23) and actual allocation (24) can be placed in different parts of the communications system- in the mobile station (40), in a base station (20) or In a core network node (70), or as a distributed means.
摘要翻译：无线电资源被分配给移动台（40）和基站（20）之间的通信。如果5个移动站（40）经历来自这些相邻小区的同信道干扰的瞬时低电平，则可用的一组无线电资源可以包括主要分配给相邻小区的无线电资源。干扰的存在优先从导频信号的信号质量测量推导出来。该分配可以涉及上行链路和/或下行链路（54）通信。用于执行测量的设备（41）位于移动台（40）中，而用于执行评估（22），选择（23）和实际分配（24）的设备可以放置在通信系统的不同部分移动台（40），基站（20）或核心网络节点（70）中，或作为分布式装置。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式