公开(公告)号：WO2004026483A8

公开(公告)日：2004-07-29

申请号：PCT/EP0310026

申请日：2003-09-10

Applicant: ERICSSON TELEFON AB L M ,  BERNHARDSSON BO ,  NILSSON JOHAN ,  JONSSON ELIAS ,  LINDOFF BENGT

Inventor： BERNHARDSSON BO ,  NILSSON JOHAN ,  JONSSON ELIAS ,  LINDOFF BENGT

IPC: H04B7/005 ,  H04W52/40 ,  H04W52/56

CPC classification number: H04W52/56 ,  H04W52/40

Abstract: Methods, receivers, and computer program products for defining asymmetric decision regions of a symbol space to interpret transmitted power control commands are disclosed. A method of determining transmitted power control commands at a. receiver can include defining a first decision region of a symbol space associated with a first power control command at the receiver and a second decision region of the symbol space associated with a second power control command at the receiver where the first and second regions are asymmetric with one another. Methods of determining a transmitted power control command during soft handover mode in a wideband code division multiple access communications system are also discussed wherein a first determination of a combined power control command received from a plurality of transmitters can be combined with a second determination of the combined power control command received from the plurality of transmitters to provide a combined power control command. Related circuits are, disclosed as well.

Abstract translation: 公开了用于定义符号空间的不对称决策区以解释发射功率控制命令的方法，接收机和计算机程序产品。 一种确定发射功率控制命令的方法。 接收器可以包括定义与在接收器处的第一功率控制命令相关联的符号空间的第一判定区域和符号空间的与在接收器处的第二功率控制命令相关联的第二判定区域，其中第一和第二区域与 另一个。 还讨论了在宽带码分多址通信系统中在软切换模式期间确定发射功率控制命令的方法，其中可以将从多个发射机接收的组合功率控制命令的第一确定与组合功率控制命令的第二确定 从多个发射机接收的功率控制命令以提供组合的功率控制命令。 相关电路也被公开。

公开(公告)号：EP2901581A4

公开(公告)日：2016-06-22

申请号：EP13842365

申请日：2013-09-18

Applicant: ERICSSON TELEFON AB L M

Inventor： WANG JIANFENG ,  LIU JINHUA ,  NILSSON JOHAN ,  WANG HAI

IPC: H04J11/00 ,  H04L5/00 ,  H04L17/00

CPC classification number: H04L25/0202 ,  H04J11/005 ,  H04L5/0048 ,  H04L5/14 ,  H04L25/02

公开(公告)号：WO0223764A3

公开(公告)日：2002-05-30

申请号：PCT/EP0110712

申请日：2001-09-17

Applicant: ERICSSON TELEFON AB L M ,  NILSSON JOHAN

Inventor： NILSSON JOHAN

IPC: H04B7/005

CPC classification number: H04W52/325

Abstract: The energy at which a transmit power control is transmitted is set based on how important it is that the transmit power control command is received. As an indication of how important it is that the transmit power control command is received, a difference between a measured quality, e.g., SIR, of a received signal and a reference may be determined. The energy at which the transmit power control command is transmitted may be set based on this difference. The energy of the transmit power control command may be set by adjusting the power at which the transmit power control command is transmitted and/or by adjusting the coding of the transmit power control command. If the difference is determined to be substantially zero, the energy at which the transmit power control command is transmitted is decreased, by an amount that is a function of the difference. If the difference is determined not to be substantially zero, the energy at which the transmit power control command is transmitted is increased by an amount that is a function of the different. This technique may be used for uplink transmit power control commands or for downlink power control commands. For uplink transmit power control commands, the technique is performed in the network, e.g., in a base station. For downlink transmit power control commands, the technique is performed in, e.g., a remote terminal.

Abstract translation: 基于发送功率控制命令的接收重要性来设定发送功率控制发送的能量。 作为接收发射功率控制命令的重要性的指示，可以确定接收信号的测量质量（例如SIR）和参考之间的差异。 可以基于该差异来设置发送功率控制命令发送的能量。 发送功率控制命令的能量可以通过调整发送功率控制命令的发送功率和/或通过调整发送功率控制指令的编码来设定。 如果该差被确定为基本为零，则发送功率控制命令的能量被减小与该差的函数的量。 如果该差被确定为基本不为零，则发送功率控制命令的能量被增加了作为不同的函数的量。 该技术可以用于上行链路发射功率控制命令或下行链路功率控制命令。 对于上行链路发射功率控制命令，该技术在网络中执行，例如在基站中。 对于下行链路发射功率控制命令，该技术在例如远程终端中执行。

公开(公告)号：WO2006066843A3

公开(公告)日：2006-08-10

申请号：PCT/EP2005013646

申请日：2005-12-19

Applicant: ERICSSON TELEFON AB L M ,  ANDERSSON LENNART ,  NILSSON JOHAN ,  LINDOFF BENGT ,  BERNHARDSSON BO

Inventor： ANDERSSON LENNART ,  NILSSON JOHAN ,  LINDOFF BENGT ,  BERNHARDSSON BO

IPC: H04B7/005

CPC classification number: H04W52/125 ,  H04W52/08 ,  H04W52/225 ,  H04W52/24 ,  H04W52/246

Abstract: A method for generating a power control command in a transceiver in a wireless communication system, where method comprises the steps of calculating, at the beginning of a predefined time period, a quality measure reference value (306), generating, repeatedly during the predefined time period; an estimated quality measure value (307) of a signal received at the transceiver; genarting a power control command (313) in dependence of the estimated quality measure value (307) and the quality measure reference value (306); and generating, a number of times during the predefined time period, a modified quality measure reference value (309) from the quality measure reference value (306). The step of generating the power control command comprises comparing the estimated quality measure value (307) with the modified quality measure reference value (309). A power control unit (300), comprising a quality measure estimator (308), a calculator (310), a first controller (303), a second controller (302) and an inner loop element (312), is configured to implement the method.

Abstract translation: 一种用于在无线通信系统中的收发机中产生功率控制命令的方法，其中该方法包括以下步骤：在预定时间周期的开始处计算质量测量参考值（306）;在预定时间内重复产生 期; 在收发器处接收到的信号的估计质量测量值（307） 根据所估计的质量测量值（307）和质量测量参考值（306）来确定功率控制命令（313）; 以及在所述预定义的时间段期间从所述质量度量参考值（306）生成修改的质量度量参考值（309）。 生成功率控制命令的步骤包括将估计质量测量值（307）与修改质量测量参考值（309）进行比较。 包括质量度量估计器（308），计算器（310），第一控制器（303），第二控制器（302）和内部回路元件（312）的功率控制单元（300）被配置为实现 方法。

公开(公告)号：WO2004098087A2

公开(公告)日：2004-11-11

申请号：PCT/US2004012733

申请日：2004-04-23

Applicant: ERICSSON TELEFON AB L M ,  BOTTOMLEY GREGORY EDWARD ,  KHAYRALLAH ALI S ,  OLSON HENRIK ,  NILSSON JOHAN

Inventor： BOTTOMLEY GREGORY EDWARD ,  KHAYRALLAH ALI S ,  OLSON HENRIK ,  NILSSON JOHAN

IPC: H04B1/707 ,  H04L25/02

CPC classification number: H04B1/7113 ,  H04B1/7077 ,  H04B1/7117 ,  H04L25/0212

Abstract: A method for estimating a plurality of delay values in a multi-path communication signal. Correlation values are generated that correspond to a plurality of delay values associated with the multi-path communication signal. A first power-delay profile (PDP) sequence is produced from the correlation values and is used to estimate a first delay value. A first reference PDP sequence is generated based on a predefined PDP sequence and the first PDP sequence. The first reference PDP sequence is removed from the first PDP sequence so as to remove at least a portion of the contributions to the first PDP sequence from the first delay value, and to provide a second PDP sequence. A second value is estimated based on the second PDP sequence.

Abstract translation: 一种用于估计多径通信信号中的多个延迟值的方法。 产生与多路通信信号相关联的多个延迟值对应的相关值。 从相关值产生第一功率延迟分布（PDP）序列，并且用于估计第一延迟值。 基于预定义的PDP序列和第一PDP序列生成第一参考PDP序列。 从第一PDP序列中移除第一参考PDP序列，以便从第一延迟值中去除对第一PDP序列的贡献的至少一部分，并提供第二PDP序列。 基于第二PDP序列估计第二值。

公开(公告)号：WO02054637A3

公开(公告)日：2002-12-05

申请号：PCT/EP0115118

申请日：2001-12-20

Applicant: ERICSSON TELEFON AB L M ,  NILSSON JOHAN

Inventor： NILSSON JOHAN

IPC: H04B7/005 ,  H04B7/26 ,  H04B17/00

CPC classification number: H04B17/336 ,  H04B17/21 ,  H04B17/26 ,  H04W52/24

Abstract: A method is provided for estimating the SIR of signals transmitted between a mobile unit (20) and a base station (10), wherein the signals comprise pilot and data symbol blocks transmitted during each of a succession of time slots. SIR estimates and corresponding power changes are computed for each slot (36-40) in the initial group. The SIR estimates derived from the initial slot group are used to compute the delay time of power control commands, in order to adjust the power level thereof. The SIR for signals of a specified slot (36-40), which follows the initial slot group, is then estimated from the time delay, from the pilot block (36b-40b) of the specified slot (36-40), and from the data block (36c-40c) of the slot (36-40) immediately preceding.

Abstract translation: 提供了一种用于估计在移动单元（20）和基站（10）之间传输的信号的SIR的方法，其中所述信号包括在一系列时隙中的每一个期间传输的导频和数据符号块。 对初始组中的每个时隙（36-40）计算SIR估计和相应的功率变化。 从初始时隙组导出的SIR估计用于计算功率控制命令的延迟时间，以便调整其功率电平。 然后，根据指定时隙（36-40）的导频块（36b-40b）和从指定时隙（36-40）的时间延迟来估计在初始时隙组之后的指定时隙（36-40）的信号的SIR， （36-40）的数据块（36c-40c）。

公开(公告)号：WO2009060023A2

公开(公告)日：2009-05-14

申请号：PCT/EP2008065045

申请日：2008-11-06

Applicant: ERICSSON TELEFON AB L M ,  LINDOFF BENGT ,  NILSSON JOHAN ,  WILHELMSSON LEIF ,  NORDSTROEM FREDRIK

Inventor： LINDOFF BENGT ,  NILSSON JOHAN ,  WILHELMSSON LEIF ,  NORDSTROEM FREDRIK

IPC: H04B7/02 ,  H04B7/08

CPC classification number: H04B7/086 ,  H04B17/345 ,  H04J11/005 ,  H04J11/0093 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/0242

Abstract: A multi-branch OFDM receiver combines diversity signals received over different receiver branches using interference rejection combining. The receiver generates first channel estimates associated with a serving base station, second channel estimates associated with at least one non-serving base station, and a time offset between the serving base station and non-serving base station. The receiver computes a noise covariance matrix based on the second channel estimates and the time offset, and then combines the diversity signals received over different branches using the first channel estimates and the noise covariance matrix.

Abstract translation: 多分支OFDM接收机使用干扰抑制组合将通过不同接收机分支接收的分集信号进行组合。 接收机产生与服务基站相关联的第一信道估计，与至少一个非服务基站相关联的第二信道估计以及服务基站与非服务基站之间的时间偏移。 接收机基于第二信道估计和时间偏移计算噪声协方差矩阵，然后使用第一信道估计和噪声协方差矩阵组合在不同分支上接收的分集信号。

公开(公告)号：WO2004028029A3

公开(公告)日：2004-05-27

申请号：PCT/EP0310588

申请日：2003-09-23

Applicant: ERICSSON TELEFON AB L M ,  NILSSON JOHAN

Inventor： NILSSON JOHAN

IPC: H04B7/005

CPC classification number: H04W52/12 ,  H04W52/36

Abstract: A radio frequency transmitter is power controlled using a controlling system including an integrating controller, together with an inner and an outer control loop. A tracking signal supplied by the inner loop to the integrating controller of the outer loop is used to avoid windup problems when the transmitted power is saturated.

Abstract translation: 射频发射机通过使用包括积分控制器的控制系统以及内部和外部控制回路进行功率控制。 使用内循环提供给外循环的积分控制器的跟踪信号，以避免发射功率饱和时的卷绕问题。

公开(公告)号：WO02067453A8

公开(公告)日：2003-10-23

申请号：PCT/EP0200606

申请日：2002-01-23

Applicant: ERICSSON TELEFON AB L M ,  ERIKSSON HAAKAN ,  NILSSON JOHAN ,  ERICSSON ANDERS

Inventor： ERIKSSON HAAKAN ,  NILSSON JOHAN ,  ERICSSON ANDERS

IPC: H04B1/7075 ,  H04B1/7115 ,  H04B1/7117 ,  H04B1/707

CPC classification number: H04B1/7115 ,  H04B1/7075 ,  H04B1/7117

Abstract: Path delays experienced by a received signal are estimated for use in, for example, a RAKE receiver. This involves hypothesising a plurality of path delays. For each of a plurality of measurement time slots and for each of the hypothesised path delays, a measurement based on the received signal is made along with a determination of whether a fade occurred. For each of the plurality of measurement time slots and for each of the hypothesised path delays, the measurement is combined with a corresponding one of a plurality of cumulative metrics only if it was determined that no fade occurred. Then, for each of the plurality of hypothesised path delays, the corresponding one of the plurality of cumulative metrics is used to determine whether the hypothesised path delay corresponds to a real path delay.

Abstract translation: 估计接收信号经历的路径延迟用于例如RAKE接收机。 这涉及假设多个路径延迟。 对于多个测量时隙中的每一个，并且对于每个假定的路径延迟，基于接收到的信号进行测量以及是否发生衰落的确定。 对于多个测量时隙中的每一个以及对于每个假定的路径延迟，仅当确定没有发生褪色时，将测量与多个累积度量中的相应的一个相结合。 然后，对于多个假设的路径延迟中的每一个，使用多个累积度量中的相应一个来确定假设的路径延迟是否对应于实际路径延迟。

公开(公告)号：WO0199386A3

公开(公告)日：2002-04-25

申请号：PCT/EP0106609

申请日：2001-06-12

Applicant: ERICSSON TELEFON AB L M

Inventor： NILSSON JOHAN

IPC: H04L1/00 ,  H04L1/20

CPC classification number: H04L1/0045 ,  H04L1/203

Abstract: A bit error rate estimation is generated for a received signal. This involves using an error correction decoding technique to generate a block of decoded bits from the received signal, and using an error detection technique to determine whether at least one of the decoded bits from the block of decoded bits has an erroneous value. If none of the decoded bits from the block of decoded bits has an erroneous value, then the bit error rate estimate is calculated from the received signal. Otherwise, the bit error rate estimate is set equal to a value that is based on a previously calculated bit error rate. This may be further refined by using a predetermined value in place of a value based on the previously calculated bit error rate if it is detected that a number of consecutively received blocks were received with non-correctable errors.