专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20130083672A1 Apparatus and Method for Controlling Self-Interference in a Cellular Communications System 有权
标题翻译：用于控制蜂窝通信系统中的自干扰的装置和方法
公开(公告)号：US20130083672A1
公开(公告)日：2013-04-04
申请号：US13144784
申请日：2011-06-14
申请人： Klas Johansson , Niilo Musikka , Henrik Nyberg , Anders Wallén
发明人： Klas Johansson , Niilo Musikka , Henrik Nyberg , Anders Wallén
IPC分类号： H04W72/08
CPC分类号： H04W72/082 , H04W72/0453 , H04W88/08
摘要： The invention relates to a radio base station (102) and method in a radio base station of a cellular communications system (100) for controlling self-interference. The radio base station (102) supports communication with a user equipment (101) using multiple uplink and multiple downlink carriers (104a, 104b, 105a, 105b). The method comprises detecting a degraded downlink performance on a downlink carrier (105a) due to self-interference by determining that a set of predefined conditions applies. The method further comprises executing, in response to detection of the degraded downlink performance, an action to reduce self-interference between the uplink and downlink carriers (104a, 104b, 105a, 105b). The action is one of: uplink scheduling to reduce self-interference, deactivation of a secondary uplink carrier (14a, 104b), deactivation of a secondary downlink carrier (105a, 105b), and initiation of carrier reconfiguration to reduce self-interference. Accordingly, benefits of using multi-carrier operation may be balanced against a possible associated drawback of degraded downlink performance due to self-interference.
摘要翻译：本发明涉及用于控制自干扰的蜂窝通信系统（100）的无线基站中的无线基站（102）和方法。无线电基站（102）支持使用多个下行链路载波（104a，104b，105a，105b）与用户设备（101）的通信。该方法包括通过确定一组预定义条件适用来检测由于自干扰在下行链路载波（105a）上的劣化的下行链路性能。该方法还包括响应于对劣化的下行链路性能的检测，执行减少上行链路和下行链路载波（104a，104b，105a，105b）之间的自干扰的动作。该动作是以下之一：减少自干扰的上行链路调度，二级上行链路载波（14a，104b）的去激活，二级下行链路载波（105a，105b）的去激活以及载波重配置的启动以减少自干扰。因此，使用多载波操作的好处可以与由于自干扰引起的下行链路性能下降的可能的相关缺点进行平衡。

42. 发明申请

US20130044619A1 Determining and Selecting Levels of Power Reduction for Signals to Be Transmitted From a Mobile Communications Device 有权
标题翻译：确定和选择从移动通信设备传输的信号的功率降低级别
公开(公告)号：US20130044619A1
公开(公告)日：2013-02-21
申请号：US13516277
申请日：2009-12-22
申请人： Anders Wallén , Lars Sundström
发明人： Anders Wallén , Lars Sundström
IPC分类号： H04W52/24 , H04W52/02
CPC分类号： H04W52/262 , H04W52/52
摘要： Levels of power reduction for signals to be transmitted from a mobile communications device via radio channels in a digital wireless communications system, where each signal is modulated according to one of a number of modulation configurations, are determined. For each modulation configuration a first estimate of a power reduction is calculated (101), and the calculated first estimates are storied (102) in the device. The method comprises the steps of determining (103) a limited set of modulation configurations, said limited set comprising modulation configurations that have been determined likely to be used in practice; calculating (104) for each modulation configuration of the limited set an optimized estimate of a power reduction; and storing (105) the calculated optimized estimates in the device. In this way the power consumption of the device is reduced while keeping a look-up table at a reasonable size.
摘要翻译：确定在数字无线通信系统中通过无线电信道从移动通信设备发送的信号的功率降低级别，其中每个信号根据多个调制配置中的一个进行调制。对于每个调制配置，计算功率降低的第一估计（101），并且计算的第一估计在设备中存储（102）。该方法包括以下步骤：确定（103）有限的一组调制配置，所述有限集包括已被确定可能在实践中使用的调制配置; 对所述限制集合的每个调制配置计算（104）对功率降低的优化估计; 以及将所计算的优化估计存储（105）到所述装置中。以这种方式，减少了设备的功耗，同时将查找表保持在合理的大小。

43. 发明申请

US20120252446A1 Fast Radio Access Technology Detection for Cell Search 有权
标题翻译：用于小区搜索的快速无线接入技术检测
公开(公告)号：US20120252446A1
公开(公告)日：2012-10-04
申请号：US13076599
申请日：2011-03-31
申请人： Andres Reial , Niklas Andgart , Bengt Lindoff , Lennart Moren , Anders Wallén
发明人： Andres Reial , Niklas Andgart , Bengt Lindoff , Lennart Moren , Anders Wallén
IPC分类号： H04W4/00
CPC分类号： H04W48/16 , H04W88/06
摘要： Methods and apparatus are provided for detecting the radio access technology (RAT) employed in a received signal prior to performing a cell search. The RAT detection method may be used to identify the most likely RAT employed for each candidate frequency identified in an initial frequency scan. Once the most likely RAT is identified, the mobile communication device can then attempt synchronization according to the procedures for the most likely RAT. Identifying the RAT prior to the cell search reduces the number of synchronization attempts and, consequently, the time needed to perform the cell search.
摘要翻译：提供了用于在执行小区搜索之前检测在接收信号中采用的无线电接入技术（RAT）的方法和装置。 RAT检测方法可以用于识别在初始频率扫描中识别的每个候选频率所采用的最可能的RAT。一旦识别出最可能的RAT，则移动通信设备然后可以根据最可能的RAT的过程尝试同步。在小区搜索之前识别RAT减少了同步尝试的次数，因此减少了进行小区搜索所需的时间。

44. 发明授权

US08219058B2 Radio receiver 有权
标题翻译：无线电接收机
公开(公告)号：US08219058B2
公开(公告)日：2012-07-10
申请号：US12374306
申请日：2007-07-06
申请人： Bengt Lindoff , Anders Wallén
发明人： Bengt Lindoff , Anders Wallén
IPC分类号： H04B1/06 , H04B7/00
CPC分类号： H04B1/406 , H04L27/2647 , H04W52/26
摘要： A radio receiver adapted to alternatively receive data over a communication channel in a first mode and a second mode. The second mode facilitates reception of data at higher data rates than the first mode. The radio receiver comprises a signal-processing unit and a control unit. The signal processing unit is adapted to determine a quality condition of the communication channel. The control unit is adapted to determine, based on the quality condition, whether the communication channel facilitates operation in the second mode and assess at least one configuration condition, one of the at least one configuration condition being that the communication channel is determined to facilitate operation in the second mode. The control unit is further adapted to configure the radio receiver to operate in the second mode when all of at least one configuration condition are fulfilled or to operate in the first mode otherwise. A method for controlling the radio receiver is also disclosed.
摘要翻译：一种适于在第一模式和第二模式中通过通信信道交替地接收数据的无线电接收机。第二模式有助于以比第一模式更高的数据速率接收数据。无线电接收机包括信号处理单元和控制单元。信号处理单元适于确定通信信道的质量状况。控制单元适于基于质量条件确定通信信道是否便于在第二模式中的操作并且评估至少一个配置条件，所述至少一个配置条件中的一个是确定通信信道以促进操作在第二模式。所述控制单元进一步适于将所述无线电接收机配置为在所有至少一个配置条件满足时以第二模式操作或者否则以第一模式操作。还公开了一种用于控制无线电接收机的方法。

45. 发明授权

US08144573B2 Method and system for using the synchronization channel to obtain measurements in a cellular communications system 有权
标题翻译：用于使用同步信道在蜂窝通信系统中获得测量的方法和系统
公开(公告)号：US08144573B2
公开(公告)日：2012-03-27
申请号：US12689036
申请日：2010-01-18
申请人： Bengt Lindoff , Anders Wallén
发明人： Bengt Lindoff , Anders Wallén
IPC分类号： H04J11/00
CPC分类号： H04L27/261 , H04J11/0093 , H04L27/2656 , H04L27/2684 , H04W24/00 , H04W36/30 , H04W48/08 , H04W56/00 , H04W88/02
摘要： A method and apparatus that utilizes the synchronization channel (SCH) by the user equipment (UE) to obtain time synchronization information and to perform cell search. In order to perform the SCH detection, only a correlation between the known SCH signal and the received sequence is needed, hence the FFT is not involved in the synchronization step. Typically the SCH and pilot symbols are transmitted with a constant power which is the same for all base stations. Hence, based on the serving cell (SC) SCH and pilot symbols, the power relation between these signals is estimated and the ratio applied when performing time synchronization to other cells (i.e. correlation the received sequence with the SCH from that particular NC) to estimate the pilot signal strength for the NB cell.
摘要翻译：利用用户设备（UE）的同步信道（SCH）获取时间同步信息并执行小区搜索的方法和装置。为了执行SCH检测，仅需要已知SCH信号和接收到的序列之间的相关性，因此在同步步骤中不涉及FFT。通常，SCH和导频符号以对于所有基站相同的恒定功率发送。因此，基于服务小区（SC）SCH和导频符号，估计这些信号之间的功率关系，并且当与其他小区进行时间同步时（即，将来自该特定NC的SCH的接收序列相关）估计 NB电池的导频信号强度。

46. 发明授权

US08103302B2 Power-aware link adaptation with variable bandwidth allocation 有权
标题翻译：具有可变带宽分配的功率感知链路自适应
公开(公告)号：US08103302B2
公开(公告)日：2012-01-24
申请号：US11853068
申请日：2007-09-11
申请人： Jacobus Cornelis Haartsen , Bengt Lindoff , Anders Wallén
发明人： Jacobus Cornelis Haartsen , Bengt Lindoff , Anders Wallén
IPC分类号： H04B7/00
CPC分类号： H04W72/085 , H04W52/0232 , H04W52/0245 , H04W72/0406 , H04W72/087 , Y02D70/1262 , Y02D70/22
摘要： Methods and apparatus are disclosed for reducing mobile terminal energy consumption during data transmissions by allocating resources and adapting link parameters in an energy-aware manner, based on throughput requirements and prevailing signal propagation conditions. A combination of transmit parameters designed to minimize the total energy consumed during data transmission is selected based on a throughput requirement and a path loss associated with a data transmission by a mobile terminal. The combination of transmit parameters includes a bandwidth allocation and may also include a modulation format, coding scheme, and transmit power setting, as well as parameters relating to multiple-antenna transmit schemes. The bandwidth allocation may correspond to a number of sub-carriers of an OFDM signal, or may correspond to a number of resource blocks in an SC-FDMA signal.
摘要翻译：公开了用于通过基于吞吐量要求和主要信号传播条件以能量感知方式分配资源和调整链路参数来减少数据传输期间的移动终端能量消耗的方法和装置。基于吞吐量要求和与移动终端的数据传输相关联的路径损耗来选择被设计为最小化在数据传输期间消耗的总能量的发射参数的组合。发射参数的组合包括带宽分配，并且还可以包括调制格式，编码方案和发射功率设置，以及与多天线发射方案有关的参数。带宽分配可以对应于OFDM信号的子载波的数量，或者可以对应于SC-FDMA信号中的资源块的数量。

47. 发明申请

US20100118693A1 METHOD AND SYSTEM FOR USING THE SYNCHRONIZATION CHANNEL TO OBTAIN MEASUREMENTS IN A CELLULAR COMMUNICATIONS SYSTEM 有权
标题翻译：使用同步通道在细胞通信系统中获取测量的方法和系统
公开(公告)号：US20100118693A1
公开(公告)日：2010-05-13
申请号：US12689036
申请日：2010-01-18
申请人： Bengt Lindoff , Anders Wallén
发明人： Bengt Lindoff , Anders Wallén
IPC分类号： H04L12/26 , H04J11/00
CPC分类号： H04L27/261 , H04J11/0093 , H04L27/2656 , H04L27/2684 , H04W24/00 , H04W36/30 , H04W48/08 , H04W56/00 , H04W88/02
摘要： A method and apparatus that utilizes the synchronization channel (SCH) by the user equipment (UE) to obtain time synchronization information and to perform cell search. In order to perform the SCH detection, only a correlation between the known SCH signal and the received sequence is needed, hence the FFT is not involved in the synchronization step. Typically the SCH and pilot symbols are transmitted with a constant power which is the same for all base stations. Hence, based on the serving cell (SC) SCH and pilot symbols, the power relation between these signals is estimated and the ratio applied when performing time synchronization to other cells (i.e. correlation the received sequence with the SCH from that particular NC) to estimate the pilot signal strength for the NB cell.
摘要翻译：利用用户设备（UE）的同步信道（SCH）获取时间同步信息并执行小区搜索的方法和装置。为了执行SCH检测，仅需要已知SCH信号和接收到的序列之间的相关性，因此在同步步骤中不涉及FFT。通常，SCH和导频符号以对于所有基站相同的恒定功率发送。因此，基于服务小区（SC）SCH和导频符号，估计这些信号之间的功率关系，并且当与其他小区进行时间同步时（即，将来自该特定NC的SCH的接收序列相关）估计 NB电池的导频信号强度。

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