公开(公告)号：US07885608B2

公开(公告)日：2011-02-08

申请号：US11722237

申请日：2005-12-19

申请人： Johan Nilsson ,  Bengt Lindoff

发明人： Johan Nilsson ,  Bengt Lindoff

IPC分类号： H04B1/00 ,  H04B7/00

CPC分类号： H04W52/26 ,  H04B7/0628 ,  H04B7/0634 ,  H04B2201/709727 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/1671 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/262 ,  H04W52/286 ,  H04W52/32 ,  H04W52/58

摘要： Methods and devices in a wireless communication system are provided, in which a first portion and a second portion of signals are transmitted on a physical channel to a first transceiver from a second transceiver. A method for controlling transmission parameters in the wireless communication system comprises the steps of: transmitting an indication indicating that the first and the second receiver processing algorithms are used in the first transceiver to process the first and second portions, respectively, of signals received on the physical channel; receiving the indication at the second transceiver; and adjusting, at the second transceiver in response to the indication, a transmission parameter for at least one of the first and second portions of signals to be transmitted on the physical channel to the first transceiver. The indication could be transmitted from the first transceiver, or it could be determined through evaluations carried out at the second transceiver.

摘要翻译： 提供了一种在无线通信系统中的方法和设备，其中信号的第一部分和第二部分在物理信道上从第二收发器发送到第一收发器。 一种用于控制无线通信系统中的传输参数的方法，包括以下步骤：发送指示在第一收发信机中使用第一和第二接收机处理算法的指示，分别处理在第一和第二收发信机上接收的信号的第一和第二部分 物理通道; 在所述第二收发器处接收所述指示; 以及响应于所述指示在所述第二收发器处调整要在所述物理信道上发送到所述第一收发器的信号的所述第一和第二部分信号中的至少一个的传输参数。 该指示可以从第一收发器发送，或者可以通过在第二收发器处执行的评估来确定。

公开(公告)号：US20100284499A1

公开(公告)日：2010-11-11

申请号：US12675395

申请日：2008-08-19

申请人： Bengt Lindoff

发明人： Bengt Lindoff

IPC分类号： H04B1/10

CPC分类号： H04L25/0224 ,  H04J11/0093 ,  H04L1/0026 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/022 ,  H04L27/2601

摘要： A Signal-to-Interference Ratio of a radio channel is estimated in a receiver of a wireless communications system, wherein pilots with reference information are modulated on some sub-carriers in some symbols. At least one parameter for signals received from said first transmitter is detected, and a number (Nf, Nt) of pilots in first groups that can be coherently combined in a second group is determined, and from these a channel estimate (H) for each first group and a first covariance estimate (R) for each second group are determined. A number (M) of first covariance estimates that can be averaged is defined in dependence of the presence of signals from possible interfering transmitters, and a second covariance estimate is determined as an average of said number of first covariance estimates. From the channel estimates and the second covariance estimate a Signal-to-Interference Ratio for each second group is estimated.

摘要翻译： 在无线通信系统的接收机中估计无线电信道的信号与干扰比，其中具有参考信息的导频在一些符号中的一些子载波上被调制。 检测从所述第一发射机接收到的信号的至少一个参数，并且确定可以在第二组中相干组合的第一组中的导频数（Nf，Nt），并且从这些参数中确定每个导频的信道估计（H） 确定第一组和第二组的第一协方差估计（R）。 根据来自可能的干扰发射机的信号的存在来定义可以被平均的第一协方差估计的数量（M），并且将第二协方差估计确定为所述第一协方差估计数的平均值。 从信道估计和第二协方差估计，估计每个第二组的信号与干扰比。

公开(公告)号：US07822155B2

公开(公告)日：2010-10-26

申请号：US10700855

申请日：2003-11-04

申请人： Bengt Lindoff ,  Johan Nilsson ,  Torgny Palenius

发明人： Bengt Lindoff ,  Johan Nilsson ,  Torgny Palenius

IPC分类号： H03D1/04

CPC分类号： H04B1/7103 ,  H04B2201/70701 ,  H04B2201/70709

摘要： Methods and apparatus that improve interference (I) estimation in CDMA systems in which the DPCH is sorted under a scrambling code different from the scrambling code of a channel such as the CPICH are described. In such systems, DPCH I-estimation cannot be done by measuring on the CPICH and transforming to the DPCH due to the different interference situations on the two channels. Instead, the DPCH interference is estimated by using knowledge of empty channelization codes in the alternative or secondary scrambling code that can be used for I estimation, or using symbols (e.g., control symbols on the DPCCH) on the DPCH, or searching for an empty channelization code and using a found empty code for I-estimation. These techniques improve the SIR estimate in comparison to prior techniques and hence also improve the performance of power control, increasing the system's capacity.

摘要翻译： 描述了改善其中DPCH在不同于诸如CPICH之类的信道的扰码的扰码下分类的CDMA系统中的干扰（I）估计的方法和装置。 在这种系统中，DPCH I估计不能通过在CPICH上测量并且由于两个信道上的不同干扰情况而转换到DPCH来完成。 相反，通过使用可用于I估计的替代或辅助扰码中的空信道化码的知识或者使用DPCH上的符号（例如DPCCH上的控制符号）或搜索空的信道估计来估计DPCH干扰 通道化代码，并使用找到的空代码进行I估计。 与以前的技术相比，这些技术改进了SIR估计，从而也提高了功率控制的性能，从而提高了系统的容量。

公开(公告)号：US20100177683A1

公开(公告)日：2010-07-15

申请号：US12354052

申请日：2009-01-15

申请人： Bengt Lindoff ,  Johan Nilsson

发明人： Bengt Lindoff ,  Johan Nilsson

IPC分类号： H04W48/20

CPC分类号： H04W48/16 ,  H04J11/0073 ,  H04J11/0079

摘要： A cell searching procedure is modified to enable a user terminal to determine whether a detected signal originates in a known cell or a new cell having the same cell identifier as the known cell. When a signal is detected, the user terminal determines the cell identifier and timing of the detected signal. If the cell identifier matches a known cell and the timing is outside the timing window of the known cell, the user terminal compares detected signal with a corresponding received signal received from the known cell having the same cell identifier as the detected signal source. The user terminal determines, based on said comparison, whether the detected signal is from the known cell or a new cell.

摘要翻译： 修改小区搜索过程以使得用户终端能够确定检测到的信号是否起源于具有与已知小区相同的小区标识符的已知小区或新小区。 当检测到信号时，用户终端确定检测信号的小区标识符和定时。 如果小区标识符与已知小区匹配，并且定时在已知小区的定时窗口之外，则用户终端将检测到的信号与从具有与检测到的信号源相同的小区标识符的已知小区接收的相应接收信号进行比较。 用户终端基于所述比较确定检测到的信号是来自已知小区还是新小区。

公开(公告)号：US07680215B2

公开(公告)日：2010-03-16

申请号：US11278878

申请日：2006-04-06

申请人： Bengt Lindoff ,  Johan Nilsson

发明人： Bengt Lindoff ,  Johan Nilsson

IPC分类号： H03K9/00 ,  H04L27/00

CPC分类号： H04B1/001 ,  H04B1/28 ,  H04B1/406 ,  H04W36/14 ,  H04W36/30 ,  H04W88/06

摘要： An apparatus, and a method performed by the apparatus, including a terminal with a front end receiver and analog filter (AF) operable throughout a bandwidth that is large enough to cover the total bandwidth used by different access technologies that the terminal supports. The terminal is operable to simultaneously extract from the output of a single front end receiver and AF the carrier frequencies and bandwidths of the different access technologies. This permits cell evaluation activity and an ongoing communication session to be conducted simultaneously with different access technologies on different bandwidths within the bandwidth of the analog filter and without interruption of the communication session.

摘要翻译： 一种由该装置执行的装置和方法，包括具有前端接收机和模拟滤波器（AF）的终端，该终端可在整个带宽内操作，该带宽足够大以覆盖终端支持的不同接入技术所使用的总带宽。 该终端可操作以从单个前端接收器的输出和AF同时提取不同接入技术的载波频率和带宽。 这允许小区评估活动并且持续的通信会话与模拟滤波器的带宽内的不同带宽上的不同接入技术同时进行，并且不中断通信会话。

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。

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。

公开(公告)号：US20090318090A1

公开(公告)日：2009-12-24

申请号：US12421104

申请日：2009-04-09

申请人： Jose Flordelis ,  Joakim Axmon ,  Bengt Lindoff

发明人： Jose Flordelis ,  Joakim Axmon ,  Bengt Lindoff

IPC分类号： H04B17/00

CPC分类号： H04L25/0224 ,  H04B17/318 ,  H04B17/327 ,  H04B17/336 ,  H04B17/382 ,  H04J11/0069 ,  H04L5/0007 ,  H04L25/0204 ,  H04W24/10

摘要： Methods and apparatus in a mobile receiver for selecting among methods of estimating a received power of at least one signal. A method includes selecting a first method or a second method of measuring the received power based on a cell timing and a measurement interval. Information is received from a first base station about the measurement interval during which to perform the first method and the second method on a signal transmitted by at least one second base station. The timing of the at least one second base station is determined, and based on the timing of the at least one second base station and the measurement interval, one of the first method and the second method is selected.

摘要翻译： 用于在估计至少一个信号的接收功率的方法中进行选择的移动接收机中的方法和装置。 一种方法包括基于小区定时和测量间隔选择测量接收功率的第一方法或第二方法。 从第一基站接收关于由至少一个第二基站发送的信号执行第一方法和第二方法的测量间隔的信息。 确定至少一个第二基站的定时，并且基于至少一个第二基站的定时和测量间隔，选择第一方法和第二方法之一。

公开(公告)号：US20090135748A1

公开(公告)日：2009-05-28

申请号：US12255054

申请日：2008-10-21

申请人： Bengt Lindoff ,  Williams O. Camp ,  Sven Mattisson

发明人： Bengt Lindoff ,  Williams O. Camp ,  Sven Mattisson

IPC分类号： H04L5/16

CPC分类号： H04W72/082 ,  H04W72/048 ,  H04W84/08

摘要： Adaptation is introduced into allocation of uplink and downlink subframes in wireless communication systems that support full-duplex and half-duplex mobile terminals, thus reducing interference between mobile terminals. In an exemplary method for allocating uplink and downlink timeslots in a wireless communication system supporting full-duplex and half-duplex mobile terminals, a base station determines that a mobile terminal is capable of only half-duplex operation and allocates one or more uplink subframes and one or more downlink subframes to the first mobile terminal, for each of a plurality of frames, so that none of the allocated uplink subframes overlaps in time with an allocated downlink subframe. The allocation of uplink subframes and downlink subframes is varied between consecutive ones in at least a first series of frames according to a pre-determined pattern. In some embodiments, the method further includes transmitting an allocation message to the first mobile terminal, designating the pre-determined pattern.

摘要翻译： 在支持全双工和半双工移动终端的无线通信系统中将适配引入到上行链路和下行链路子帧的分配中，从而减少移动终端之间的干扰。 在支持全双工和半双工移动终端的无线通信系统中分配上行链路和下行链路时隙的示例性方法中，基站确定移动终端仅能够进行半双工操作，并且分配一个或多个上行链路子帧， 一个或多个下行链路子帧到第一移动终端，用于多个帧中的每一个，使得所分配的上行链路子帧中的任何一个都不会与分配的下行链路子帧在时间上重叠。 上行链路子帧和下行链路子帧的分配根据预定模式在至少第一系列帧中在连续帧的分配之间变化。 在一些实施例中，该方法还包括向第一移动终端发送分配消息，指定预定模式。

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。