公开(公告)号：US08009661B2

公开(公告)日：2011-08-30

申请号：US11852606

申请日：2007-09-10

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 ,  H04W72/00 ,  H04J3/06

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。

公开(公告)号：US20110171966A1

公开(公告)日：2011-07-14

申请号：US13119512

申请日：2009-08-28

申请人： Stefan Parkvall ,  Robert Baldemair ,  Erik Dahlman

发明人： Stefan Parkvall ,  Robert Baldemair ,  Erik Dahlman

IPC分类号： H04W72/04

CPC分类号： H04L27/2636

摘要： The present disclosure relates to a technique for transmitting modulation symbols on multiple frequency resources. A method aspect of this technique includes applying a Discrete Fourier Transform (DFT) coding per set of modulation symbols of two or more sets of modulation symbols, wherein a first set of modulation symbols from the two or more sets of modulation symbols is transmitted on a set of frequency resources handled by the same power amplifier. Then, Orthogonal Frequency Division Multiplexing (OFDM) modulation is applied to the sets of DFT coded modulation symbols to output a first set of OFDM symbols for transmission on the set of frequency resources, and output another set of OFDM symbols for transmission on at least one additional frequency resource distinct from the set of frequency resources. Power amplification is then applied per set of frequency resources at the power amplifier.

摘要翻译： 本公开涉及一种用于在多个频率资源上发送调制符号的技术。 该技术的方法方面包括对每组调制符号的两组或更多组应用对每组调制符号的离散傅里叶变换（DFT）编码，其中来自两组或更多组调制符号的第一组调制符号在 由同一功率放大器处理的一组频率资源。 然后，将正交频分复用（OFDM）调制应用于DFT编码调制符号组，以输出第一组OFDM符号，用于频率资源集合上的传输，并输出另一组OFDM符号以在至少一个 附加频率资源与频率资源集不同。 然后在功率放大器上对每组频率资源施加功率放大。

公开(公告)号：US20080205351A1

公开(公告)日：2008-08-28

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

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。

公开(公告)号：US20080181194A1

公开(公告)日：2008-07-31

申请号：US11852606

申请日：2007-09-10

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： H04J3/06

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。

公开(公告)号：US20070093253A1

公开(公告)日：2007-04-26

申请号：US11531219

申请日：2006-09-12

申请人： Bengt Lindoff ,  Robert Baldemair ,  Kambiz Zangi ,  Stefan Parkvall

发明人： Bengt Lindoff ,  Robert Baldemair ,  Kambiz Zangi ,  Stefan Parkvall

IPC分类号： H04Q7/20

CPC分类号： H04L27/2685 ,  H04B2201/70702 ,  H04J11/0069 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/2613 ,  H04L27/2655

摘要： An apparatus and method operable to enable the use of synchronization (SCH) and broadcast channel (BCH) signals with a bandwidth (BW) equal to the minimum possible BW for the system, for example 1.25 MHz. The present invention increases the speed of the initial cell search. In addition, the repetition of signals in the frequency domain makes it possible to perform a faster cell detection in the event a system/mobile terminal/UE is using a larger BW. When the present invention is used in a high BW system, a mobile terminal/UE is operable to determine whether to perform a cell search on a low or high BW to get sufficient cell detection performance.

摘要翻译： 一种用于使能同步（SCH）和广播信道（BCH）信号的装置和方法，所述同步（SCH）和广播信道（BCH）信号的带宽（BW）等于系统的最小可能BW，例如1.25MHz。 本发明增加了初始小区搜索的速度。 此外，频域中的信号的重复使得可以在系统/移动终端/ UE正在使用较大的BW的情况下执行更快的小区检测。 当本发明用于高BW系统时，移动终端/ UE可操作以确定是否在低或高BW上执行小区搜索以获得足够的小区检测性能。

公开(公告)号：US09144044B2

公开(公告)日：2015-09-22

申请号：US13043027

申请日：2011-03-08

申请人： Robert Baldemair ,  Magnus Larsson ,  Stefan Parkvall

发明人： Robert Baldemair ,  Magnus Larsson ,  Stefan Parkvall

IPC分类号： H04W56/00

CPC分类号： H04W56/001 ,  H04W56/0015

摘要： Methods may be providing for signal synchronization at a wireless terminal communicating with a radio access network. For example, a command may be received from the radio access network, and the command may be to add a first carrier on a first frequency as a link for communications from the radio access network to the wireless terminal. Responsive to receiving the command to add the first carrier, the first carrier may be synchronized and/or configured using signals of a second carrier on a second frequency different than the first frequency. Related wireless terminals, network nodes, and network node methods are also discussed.

摘要翻译： 方法可以在与无线电接入网络通信的无线终端处提供信号同步。 例如，可以从无线电接入网络接收命令，并且该命令可以是在第一频率上添加第一载波作为用于从无线电接入网络到无线终端的通信的链路。 响应于接收到添加第一载波的命令，可以使用不同于第一频率的第二频率上的第二载波的信号来同步和/或配置第一载波。 还讨论了相关无线终端，网络节点和网络节点方法。

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。

公开(公告)号：US08345654B2

公开(公告)日：2013-01-01

申请号：US12444056

申请日：2007-06-26

申请人： Stefan Parkvall ,  Jacobus Cornelis Haartsen ,  Robert Baldemair

发明人： Stefan Parkvall ,  Jacobus Cornelis Haartsen ,  Robert Baldemair

IPC分类号： H04B7/216

CPC分类号： H04W74/002 ,  H04B1/7103 ,  H04B2201/709709 ,  H04J11/0026 ,  H04J13/004 ,  H04J13/18 ,  H04W16/10 ,  H04W72/08 ,  H04W74/0833

摘要： A method in a network node in control of a cell in a cellular telecommunication network for reducing intra-cell interference between user equipments (UE) residing in said cell and performing random access (RA). The method comprises the steps of arranging groups of preamble sequences where the sequences within each group are orthogonal to each other, assigning one such group to the cell, from which group the UEs performing RA randomly selects a preamble, and assigning one or more additional group(s) of preamble sequences to said cell if the RACH or traffic load exceeds a certain threshold. The invention further relates to a radio network node in a cellular telecommunication system, capable of carrying out said method.

摘要翻译： 一种网络节点中的控制蜂窝电信网络中的小区的方法，用于减少驻留在所述小区中的用户设备（UE）和执行随机接入（RA）之间的小区内干扰。 该方法包括以下步骤：排列前序序列组，其中每组中的序列彼此正交，将一个这样的组分配给小区，执行RA的UE从该组中随机选择前导码，并且分配一个或多个附加组 如果RACH或业务负载超过某个阈值，则前导序列的一个或多个字节到所述小区。 本发明还涉及能够执行所述方法的蜂窝电信系统中的无线电网络节点。

公开(公告)号：US08320359B2

公开(公告)日：2012-11-27

申请号：US11531219

申请日：2006-09-12

申请人： Bengt Lindoff ,  Robert Baldemair ,  Kambiz Zangi ,  Stefan Parkvall

发明人： Bengt Lindoff ,  Robert Baldemair ,  Kambiz Zangi ,  Stefan Parkvall

IPC分类号： H04J3/06

CPC分类号： H04L27/2685 ,  H04B2201/70702 ,  H04J11/0069 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/2613 ,  H04L27/2655

摘要： An apparatus and method operable to enable the use of synchronization (SCH) and broadcast channel (BCH) signals with a bandwidth (BW) equal to the minimum possible BW for the system, for example 1.25 MHz. The present invention increases the speed of the initial cell search. In addition, the repetition of signals in the frequency domain makes it possible to perform a faster cell detection in the event a system/mobile terminal/UE is using a larger BW. When the present invention is used in a high BW system, a mobile terminal/UE is operable to determine whether to perform a cell search on a low or high BW to get sufficient cell detection performance.

摘要翻译： 一种用于使能同步（SCH）和广播信道（BCH）信号的装置和方法，所述同步（SCH）和广播信道（BCH）信号的带宽（BW）等于系统的最小可能BW，例如1.25MHz。 本发明增加了初始小区搜索的速度。 此外，频域中的信号的重复使得可以在系统/移动终端/ UE正在使用较大的BW的情况下执行更快的小区检测。 当本发明用于高BW系统时，移动终端/ UE可操作以确定是否在低或高BW上执行小区搜索以获得足够的小区检测性能。

公开(公告)号：US20120082152A1

公开(公告)日：2012-04-05

申请号：US13043027

申请日：2011-03-08

申请人： Robert Baldemair ,  Magnus Larsson ,  Stefan Parkvall

发明人： Robert Baldemair ,  Magnus Larsson ,  Stefan Parkvall

IPC分类号： H04J3/06

CPC分类号： H04W56/001 ,  H04W56/0015

摘要： Methods may be providing for signal synchronization at a wireless terminal communicating with a radio access network. For example, a command may be received from the radio access network, and the command may be to add a first carrier on a first frequency as a link for communications from the radio access network to the wireless terminal. Responsive to receiving the command to add the first carrier, the first carrier may be synchronized and/or configured using signals of a second carrier on a second frequency different than the first frequency. Related wireless terminals, network nodes, and network node methods are also discussed.

摘要翻译： 方法可以在与无线电接入网络通信的无线终端处提供信号同步。 例如，可以从无线电接入网络接收命令，并且该命令可以是在第一频率上添加第一载波作为用于从无线电接入网络到无线终端的通信的链路。 响应于接收到添加第一载波的命令，可以使用不同于第一频率的第二频率上的第二载波的信号来同步和/或配置第一载波。 还讨论了相关无线终端，网络节点和网络节点方法。