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1. 发明授权

US08670384B2 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：US08670384B2
公开(公告)日：2014-03-11
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 , H04J3/06 , H04W72/00
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的参考信号子集中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。

2. 发明授权

US08009661B2 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：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。

3. 发明授权

US07656850B2 Method and apparatus for accelerated super 3G cell search 有权
标题翻译：加速超3G小区搜索的方法和装置
公开(公告)号：US07656850B2
公开(公告)日：2010-02-02
申请号：US11531213
申请日：2006-09-12
申请人： Bengt Lindoff , Robert Baldemair
发明人： Bengt Lindoff , Robert Baldemair
IPC分类号： H04W4/00 , H04B7/212 , H04J3/06
CPC分类号： H04J11/0069 , H04L27/2607 , H04W56/0035
摘要： The method and system of a first aspect of the present invention is adapted to perform cell search on all possible bandwidths. In order to reduce the search time, the order in which the allowable BW is used in the search is based on information from history lists. These history lists include the BWs and frequency bands used. A second aspect of the present invention is a method and an OFDM cellular telecommunications system adapted to perform cell search and synchronization wherein the system has a certain number of bandwidth possibilities. The method comprises the steps of identifying at least one critical system parameter that reduces the set of possible synchronization signals; and performing cell search and synchronization over the limited number of different synchronization signals.
摘要翻译：本发明的第一方面的方法和系统适于在所有可能的带宽上执行小区搜索。为了减少搜索时间，搜索中使用允许BW的顺序是基于来自历史列表的信息。这些历史列表包括使用的BW和频带。本发明的第二方面是一种适于执行小区搜索和同步的OFDM蜂窝电信系统，其中系统具有一定数量的带宽可能性。该方法包括以下步骤：识别减少可能的同步信号集合的至少一个关键系统参数; 并且在有限数量的不同同步信号上执行小区搜索和同步。

4. 发明申请

US20090323629A1 Secondary Synchronization Sequences for Cell Group Detection in a Cellular Communications System 有权
标题翻译：蜂窝通信系统中小区组检测的次同步序列
公开(公告)号：US20090323629A1
公开(公告)日：2009-12-31
申请号：US12522166
申请日：2007-12-07
申请人： Bengt Lindoff , Robert Baldemair , Erik Dahlman
发明人： Bengt Lindoff , Robert Baldemair , Erik Dahlman
IPC分类号： H04W72/04
CPC分类号： H04J11/0073 , H04B7/2681 , H04J11/0076 , H04J13/0077 , H04J13/107 , H04J13/16 , H04J2011/0009 , H04L27/2613 , H04W56/00 , H04W56/0085
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 arranged in a first ordering. In another known one of the time slots, a synchronization signal, S2, is transmitted that comprises a pair of sequences 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，发送一个同步信号S1，该同步信号包括按照第一次排序排列的一对序列。在另一个已知的一个时隙中，发送包括以第二次排序排列的一对序列的同步信号S2。所选择的一对序列被唯一地标识特定的小区组，并且该序列的第一次排序仅用于已知的一个时隙中的传输，并且该序列的第二次排序仅用于在所述另一个时隙中传输已知的一个时隙。

5. 发明申请

US20090117896A1 Distinguishing Between Synchronized and Asynchronous Mobile Communications Networks 有权
标题翻译：区分同步和异步移动通信网络
公开(公告)号：US20090117896A1
公开(公告)日：2009-05-07
申请号：US12140990
申请日：2008-06-17
申请人： Robert Baldemair , Muhammad Ali Kazmi , Bengt Lindoff
发明人： Robert Baldemair , Muhammad Ali Kazmi , Bengt Lindoff
IPC分类号： H04Q7/20
CPC分类号： H04W56/0085 , H04J11/0093 , H04W48/18
摘要： A user equipment is operated in a mobile communications system, wherein a network part of the mobile communications system is capable of operating in a synchronized mode or in an asynchronous mode. Operation includes recording timing information about a periodically occurring signal received from a neighboring cell. The recorded timing information is used in a blind detection process that ascertains whether the network part of the mobile communications system is operating in the synchronized mode or in the asynchronous mode by detecting at least whether the periodically occurring signal received from the neighboring cell occurred within a predetermined window of time of a corresponding periodically occurring signal received from a serving cell. The detected operating mode of the network part of the mobile communications system is used for controlling subsequent operation of the user equipment.
摘要翻译：用户设备在移动通信系统中操作，其中移动通信系统的网络部分能够以同步模式或异步模式操作。操作包括记录关于从相邻小区接收的周期性发生的信号的定时信息。记录的定时信息用于盲检测处理，该盲检测处理确定移动通信系统的网络部分是否以同步模式或异步模式操作，通过至少检测从相邻小区接收到的周期性发生的信号是否发生在从服务小区接收的相应周期性发生信号的预定窗口。检测到的移动通信系统的网络部分的操作模式用于控制用户设备的后续操作。

6. 发明申请

US20080205351A1 Subcarrier Spacing Identification 有权
标题翻译：副载波间距识别
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。

7. 发明申请

US20080181194A1 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：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。

8. 发明申请

US20070093253A1 SYNCHRONIZATION CHANNEL SCHEME FOR SUPER 3G 有权
标题翻译：超3G同步通道方案
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。

9. 发明授权

US07961709B2 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：US07961709B2
公开(公告)日：2011-06-14
申请号：US12522166
申请日：2007-12-07
申请人： Bengt Lindoff , Robert Baldemair , Erik Dahlman
发明人： Bengt Lindoff , Robert Baldemair , Erik Dahlman
IPC分类号： H04J3/06
CPC分类号： H04J11/0073 , H04B7/2681 , H04J11/0076 , H04J13/0077 , H04J13/107 , H04J13/16 , H04J2011/0009 , H04L27/2613 , H04W56/00 , H04W56/0085
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 arranged in a first ordering. In another known one of the time slots, a synchronization signal, S2, is transmitted that comprises a pair of sequences 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，发送一个同步信号S1，该同步信号包括按照第一次排序排列的一对序列。在另一个已知的一个时隙中，发送包括以第二次排序排列的一对序列的同步信号S2。所选择的一对序列被唯一地标识特定的小区组，并且该序列的第一次排序仅用于已知的一个时隙中的传输，并且该序列的第二次排序仅用于在所述另一个时隙中进行传输已知的一个时隙。

10. 发明申请

US20080167029A1 Adaptive Cell ID Detection in a Cellular Communications System 有权
标题翻译：蜂窝通信系统中的自适应小区ID检测
公开(公告)号：US20080167029A1
公开(公告)日：2008-07-10
申请号：US11952216
申请日：2007-12-07
申请人： Bengt Lindoff , Robert Baldemair , Erik Dahlman
发明人： Bengt Lindoff , Robert Baldemair , Erik Dahlman
IPC分类号： H04Q7/20
CPC分类号： H04J11/0069 , H04J13/18 , H04L5/0026 , H04L5/0037 , H04L5/0048 , H04L5/0053
摘要： A cell identifier is indicated in a signal to be transmitted in a cellular communication system by selecting one of a number, M, of codes, wherein each of the codes has a length N of code symbols, and wherein the selected code is associated with the cell identifier. The selected code is transmitted as a number, N, of reference symbols. The M codes are orthogonal with one another over their length, N, of the code symbols and also over at least one subgroup of length L of the code symbols, wherein L
摘要翻译：在蜂窝通信系统中通过选择号码M代码中的一个来指示小区标识符，其中每个代码具有代码符号的长度N，并且其中所选代码与单元标识符。选择的代码作为N个参考符号发送。 M代码在其码元的长度N上彼此正交，并且还在代码符号的长度L的至少一个子组上，其中L

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