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1. 发明授权

US09036571B2 Method and arrangement in a radio communications system for dynamic carrier mode switching 有权
标题翻译：用于动态载波模式切换的无线电通信系统中的方法和装置
公开(公告)号：US09036571B2
公开(公告)日：2015-05-19
申请号：US13319267
申请日：2009-05-08
申请人： Pål Frenger , Robert Baldemair , Erik Dahlman , Stefan Parkvall
发明人： Pål Frenger , Robert Baldemair , Erik Dahlman , Stefan Parkvall
IPC分类号： H04W4/00 , H04W88/06 , H04L5/00 , H04W76/04
CPC分类号： H04W88/06 , H04L5/0037 , H04W76/28
摘要： A method in a radio network node for dynamic carrier mode switching is provided. The radio network node is comprised in a radio communications system. The radio network node is configured to operate in a legacy mode and is further configured to operate in a non legacy mode. At least one carrier is operated so that it switches (602) from non legacy mode to legacy mode. When operating the carrier in the legacy mode, the radio network node signals (603) with a user equipment. The user equipment operates in legacy mode, but can not operate in non legacy mode. The radio network node then operates the at least one carrier so that it switches (604) from legacy mode back to non legacy mode.
摘要翻译：提供了一种用于动态载波模式切换的无线电网络节点中的方法。无线电网络节点包括在无线电通信系统中。无线电网络节点被配置为以传统模式操作，并且还被配置为以非传统模式操作。操作至少一个载波，使得它将（602）从非传统模式切换到传统模式。当在传统模式下操作载波时，无线电网络节点用用户设备发信号（603）。用户设备以传统模式运行，但不能在非传统模式下运行。无线电网络节点然后操作至少一个载波，使得它将（604）从传统模式切换回非传统模式。

2. 发明申请

US20120157103A1 Method and Arrangement In A Radio Communications System for Supporting DTX 有权
标题翻译：用于支持DTX的无线电通信系统中的方法和布置
公开(公告)号：US20120157103A1
公开(公告)日：2012-06-21
申请号：US13319258
申请日：2009-05-08
申请人： Pål Frenger , Robert Baldemair , Erik Dahlman
发明人： Pål Frenger , Robert Baldemair , Erik Dahlman
IPC分类号： H04W36/08 , H04W52/02
CPC分类号： H04W36/0055 , H04W52/0216 , H04W76/28 , H04W92/20 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/146 , Y02D70/24 , Y02D70/25
摘要： A method in a first base station for supporting DTX is provided. The first base station serves a first cell being in an active mode. The first base station communicates with a user equipment within the first cell. The first base station is comprised in a radio communications system further comprising the user equipment and a second base station serving a second cell being in a non observable mode. The first base station sends (602) to the second base station, a request to switch the second cell state from a non observable mode to an observable mode. It further sends (603) to the user equipment or to the second base station, a request to perform signalling between the user equipment and the second base station for quality measurements. The first base station then obtains (604) information that handover is feasible, based on quality measurement of the performed signalling. The first base station sends (605) to the second base station, a request to prepare handover of the user equipment from the first cell to the second cell, and further (606) to the user equipment, a command to perform handover to the second cell.
摘要翻译：提供了一种用于支持DTX的第一基站中的方法。第一基站服务于处于活动模式的第一小区。第一基站与第一小区内的用户设备进行通信。第一基站包括在还包括用户设备和服务于不可观察模式的第二小区的第二基站的无线电通信系统中。第一基站向第二基站发送（602）将第二小区状态从不可观察模式切换到可观察模式的请求。它进一步向用户设备或第二基站发送（603）请求以在用户设备和第二基站之间执行用于质量测量的信令。然后，基于进行的信令的质量测量，第一基站获得切换可行的信息（604）。第一基站向第二基站发送（605）请求，准备将用户设备从第一小区切换到第二小区，并且进一步（606）到用户设备，执行向第二小区切换的命令细胞。

3. 发明授权

US08639252B2 Method and arrangement in a radio communications system for supporting DTX 有权
标题翻译：用于支持DTX的无线电通信系统中的方法和布置
公开(公告)号：US08639252B2
公开(公告)日：2014-01-28
申请号：US13319258
申请日：2009-05-08
申请人： Pål Frenger , Robert Baldemair , Erik Dahlman
发明人： Pål Frenger , Robert Baldemair , Erik Dahlman
IPC分类号： H04W36/00
CPC分类号： H04W36/0055 , H04W52/0216 , H04W76/28 , H04W92/20 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/146 , Y02D70/24 , Y02D70/25
摘要： A method in a first base station for supporting DTX is provided. The first base station serves a first cell being in an active mode. The first base station communicates with a user equipment within the first cell. The first base station is comprised in a radio communications system further comprising the user equipment and a second base station serving a second cell being in a non observable mode. The first base station sends (602) to the second base station, a request to switch the second cell state from a non observable mode to an observable mode. It further sends (603) to the user equipment or to the second base station, a request to perform signalling between the user equipment and the second base station for quality measurements. The first base station then obtains (604) information that handover is feasible, based on quality measurement of the performed signalling. The first base station sends (605) to the second base station, a request to prepare handover of the user equipment from the first cell to the second cell, and further (606) to the user equipment, a command to perform handover to the second cell.
摘要翻译：提供了一种用于支持DTX的第一基站中的方法。第一基站服务于处于活动模式的第一小区。第一基站与第一小区内的用户设备进行通信。第一基站包括在还包括用户设备和服务于不可观察模式的第二小区的第二基站的无线电通信系统中。第一基站向第二基站发送（602）将第二小区状态从不可观察模式切换到可观察模式的请求。它进一步向用户设备或第二基站发送（603）请求以在用户设备和第二基站之间执行用于质量测量的信令。然后，基于进行的信令的质量测量，第一基站获得切换可行的信息（604）。第一基站向第二基站发送（605）请求，准备将用户设备从第一小区切换到第二小区，并且进一步（606）到用户设备，执行向第二小区切换的命令细胞。

4. 发明授权

US07904093B2 Method and apparatus for allocating a pilot signal adapted to the channel characteristics 有权
标题翻译：用于分配适合于信道特性的导频信号的方法和装置
公开(公告)号：US07904093B2
公开(公告)日：2011-03-08
申请号：US10582478
申请日：2004-12-01
申请人： Johan Nyström , Pål Frenger , Erik Dahlman , Svante Signell , Göran Klang
发明人： Johan Nyström , Pål Frenger , Erik Dahlman , Svante Signell , Göran Klang
IPC分类号： H04W72/00
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。

5. 发明授权

US07616556B2 Wireless multicarrier system with subcarriers reserved for communication between unsynchronized nodes 失效
标题翻译：具有保留用于在不同步节点之间通信的副载波的无线多载波系统
公开(公告)号：US07616556B2
公开(公告)日：2009-11-10
申请号：US10581995
申请日：2004-12-01
申请人： Johan Nyström , Pål Frenger , Erik Dahlman
发明人： Johan Nyström , Pål Frenger , Erik Dahlman
IPC分类号： H04J11/00
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 unsynchronized 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 unsynchronized 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，为了在不同步节点（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。

6. 发明授权

US09137075B2 Subcarrier spacing identification 有权
标题翻译：副载波间距识别
公开(公告)号：US09137075B2
公开(公告)日：2015-09-15
申请号：US11943440
申请日：2007-11-20
申请人： Bengt Lindoff , Robert Baldemair , Erik Dahlman , Stefan Parkvall
发明人： Bengt Lindoff , Robert Baldemair , Erik Dahlman , Stefan Parkvall
IPC分类号： H04J11/00 , H04L7/00 , H04L27/26 , H04L27/00
CPC分类号： H04L27/2613 , H04L27/0008 , H04L27/0012 , H04L27/2626 , H04L27/2655 , H04L27/2666
摘要： A cellular communications system that utilizes OFDM in its radio interface is capable of utilizing either a first subcarrier spacing or a second subcarrier spacing. Which of these is presently in use is indicated by generating a first type of synchronization signal in response to the first subcarrier spacing presently being in use, and generating a second type of synchronization signal in response to the second subcarrier spacing presently being in use. Whichever of the first type of synchronization signal and the second type of synchronization signal was generated is transmitted. To distinguish between the first and second types of synchronization signals, a time domain representation of the second type of synchronization signal includes a plurality of instances of the first type of synchronization signal.
摘要翻译：在其无线电接口中利用OFDM的蜂窝通信系统能够利用第一子载波间隔或第二子载波间隔。当前正在使用中的哪一个当前正在使用时响应于当前正在使用的第一子载波间隔产生第一类型的同步信号，并且响应于当前正在使用的第二子载波间隔而产生第二类型的同步信号来指示。发送第一类型的同步信号和第二类型的同步信号中的任何一个。为了区分第一类型和第二类型的同步信号，第二类型的同步信号的时域表示包括第一类型的同步信号的多个实例。

7. 发明授权

US09094146B2 Secondary synchronization sequences for cell group detection in a cellular communications system 有权
标题翻译：用于蜂窝通信系统中的小区组检测的辅同步序列
公开(公告)号：US09094146B2
公开(公告)日：2015-07-28
申请号：US13159017
申请日：2011-06-13
申请人： Bengt Lindoff , Robert Baldemair , Erik Dahlman
发明人： Bengt Lindoff , Robert Baldemair , Erik Dahlman
IPC分类号： H04J11/00 , H04W28/18 , H04W48/08
CPC分类号： H04J11/0076 , H04J11/0069 , H04J11/0073 , H04W28/18 , H04W48/08
摘要： Timing parameters and an identity of a particular one of a number of cell groups are indicated in a signal transmitted in a cellular communication system having a radio frame in a physical layer, the radio frame comprising a number of time slots. In a known one of the time slots, a synchronization signal, S1, is transmitted that comprises a pair of sequences, Si%,Sj% (Si%≠Sj% arranged in a first ordering. In another known one of the time slots, a synchronization signal, S2 is transmitted that comprises the pair of sequences, Si%,Sj% arranged in a second ordering. The selected pair of sequences is uniquely identified with the particular cell group, and the first ordering of the sequences is used only for transmission in the known one of the time slots, and the second ordering of the sequences is used only for transmission in said another known one of the time slots.
摘要翻译：在具有物理层中的无线电帧的蜂窝通信系统中发送的信号中指示多个小区组中的特定一个小区的定时参数和身份，该无线帧包括多个时隙。在已知的一个时隙中，发送同步信号S1，该同步信号S1包括一对序列，Si％，Sj％（以第一次排序排列的Si％≠Sj％），在另一个已知的时隙中，发送同步信号S2，其包括按照第二排序排列的一对序列Si％，Sj％，所选择的一对序列由特定小区组唯一地标识，序列的第一个排序仅用于已知的一个时隙中的传输，并且序列的第二排序仅用于在所述另一个已知的时隙中的传输。

8. 发明授权

US08902811B2 Methods and arrangements in a telecommunications network 有权
标题翻译：电信网络中的方法和安排
公开(公告)号：US08902811B2
公开(公告)日：2014-12-02
申请号：US13379602
申请日：2010-06-16
申请人： Robert Baldemair , David Astely , Erik Dahlman , Ylva Jading
发明人： Robert Baldemair , David Astely , Erik Dahlman , Ylva Jading
IPC分类号： H04L7/00 , H04W92/00 , H04W56/00
CPC分类号： H04W56/0045 , H04L5/001 , H04W56/0065
摘要： The present invention relates to methods and arrangements in a base station and a user equipment for determining an uplink transmission timing correction for communication in a telecommunication system in which aggregation of component carriers is applied. The base station receives a signal from the user equipment on a uplink (UL) component carrier and measures the arrival time of the signal. A timing correction of the UL transmission timing based on the arrival time of the signal is determined. Thereupon the base station determines for which of the uplink component carriers used by the user equipment the timing correction is valid. The timing correction and the validity information is sent to the user equipment. The user equipment adjusts the UL transmission timing for each UL component carrier the timing correction is valid for.
摘要翻译：本发明涉及在应用分量载波的聚合的电信系统中确定用于通信的上行链路传输定时校正的基站和用户设备中的方法和装置。基站在上行链路（UL）分量载波上接收来自用户设备的信号，并测量信号的到达时间。确定基于信号的到达时间的UL传输定时的定时校正。因此，基站确定用户设备使用的哪个上行链路分量载波的定时校正是有效的。定时校正和有效性信息被发送到用户设备。用户设备调整定时校正有效的每个UL分量载波的UL传输定时。

9. 发明申请

US20110244850A1 Cell Searching System and Method 有权
标题翻译：小区搜索系统和方法
公开(公告)号：US20110244850A1
公开(公告)日：2011-10-06
申请号：US13158895
申请日：2011-06-13
申请人： Bengt Lindoff , Robert Baldemair , Erik Dahlman , Stefan Parkvall
发明人： Bengt Lindoff , Robert Baldemair , Erik Dahlman , Stefan Parkvall
IPC分类号： H04W4/00
CPC分类号： H04L27/2655 , H04J11/0069 , H04L27/2602 , H04L27/2675
摘要： For wireless networks that transmit synchronization signals allowing user equipment to synchronize to cells within the network and transmit reference signals allowing user equipment to determine cell identities, a method and apparatus taught herein advantageously link the synchronization signal sequences to the reference signal sequences according to a defined mapping. The linking simplifies the cell search process by allowing user equipment to determine cell identities based on mapping detected synchronization signal sequences to the corresponding reference signal or to the corresponding subset of reference signals in embodiments where there are more reference signal sequences than synchronization signal sequences. In at least one embodiment, the network is a 3G LTE network and at least the Primary Synchronization Signal (P-SyS) sequences are linked to the Downlink (DL) reference symbol sequences according to a defined mapping, thereby allowing to user equipment to determine cell identities from detected P-SyS sequences.
摘要翻译：对于发送允许用户设备与网络中的小区同步并发送允许用户设备确定小区标识的参考信号的同步信号的无线网络，本文教导的方法和装置有利地将同步信号序列链接到参考信号序列，映射。该链接通过允许用户设备基于将检测到的同步信号序列映射到对应的参考信号或者在具有比同步信号序列更多的参考信号序列的参考信号序列的相应子集中来确定小区标识来简化小区搜索过程。在至少一个实施例中，网络是3G LTE网络，并且至少主同步信号（P-SyS）序列根据定义的映射链接到下行链路（DL）参考符号序列，从而允许用户设备确定来自检测到的P-SyS序列的细胞鉴定。

10. 发明授权

US08503426B2 Technique for performing a random access procedure over a radio interface 有权
标题翻译：通过无线电接口执行随机接入过程的技术
公开(公告)号：US08503426B2
公开(公告)日：2013-08-06
申请号：US12091055
申请日：2006-10-20
申请人： Robert Baldemair , Maria Edvardsson , Erik Dahlman , Jacobus Cornelis Haartsen , Stefan Parkvall
发明人： Robert Baldemair , Maria Edvardsson , Erik Dahlman , Jacobus Cornelis Haartsen , Stefan Parkvall
IPC分类号： H04J3/06 , H04W4/00 , H04B7/00
CPC分类号： H04W74/0833 , H04B7/2681 , H04J3/0605 , H04W56/001 , H04W56/0045 , H04W72/0413 , H04W72/1268 , H04W74/0891
摘要： The invention relates to a technique for performing a random access procedure over a radio interface, for example between a mobile terminal and a radio base station of a mobile network. A method aspect of the invention comprises the steps of transmitting a synchronization request for synchronization information; receiving synchronization information in response to the synchronization request; and transmitting, based on at least one transmission parameter adjusted in accordance with the synchronization information, a resource request for data transmission resources.
摘要翻译：本发明涉及一种用于通过无线电接口执行随机接入过程的技术，例如在移动网络的移动终端和无线电基站之间。本发明的方法方面包括发送用于同步信息的同步请求的步骤; 响应于同步请求接收同步信息; 以及基于根据所述同步信息调整的至少一个传输参数来发送用于数据传输资源的资源请求。

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