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    • 1. 发明申请
    • METHODS AND DEVICES FOR ALLOCATING SCRAMBLING CODES
    • 用于分配加扰代码的方法和设备
    • WO2011059379A2
    • 2011-05-19
    • PCT/SE2010/051193
    • 2010-11-03
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)DRUGGE, OskarKAZMI, MuhammadREIAL, AndresCAIRNS, Douglas, A.
    • DRUGGE, OskarKAZMI, MuhammadREIAL, AndresCAIRNS, Douglas, A.
    • H04B1/707H04J11/00
    • H04J11/005H04B1/70735H04B1/7083H04J11/0073H04J11/0076H04J11/0079H04L5/0023H04L5/0037H04L5/0048H04L25/0226H04L25/03866H04L27/2655
    • Methods and devices are provided whereby scrambling codes can be set in an improved way. In accordance with one embodiment a method is provided in a User Equipment for generating a second scrambling code or a second scrambling code group. The UE is configured for multi carrier operation receiving downlink transmission from a Universal Mobile Telecommunications System Terrestrial Radio Access Network on a set of at least two downlink carriers including an anchor carrier and at least a first secondary carrier. The method comprises determining a first scrambling code or a first scrambling code group associated with a first cell on the anchor carrier; and deriving a second scrambling code or a second scrambling code group associated with a second cell on said first secondary carrier using a predefined rule defining the relation between the second scrambling code or second scrambling code group and the first scrambling code or scrambling code group. Hereby interference suppression / cancellation processing is enabled in a receiver of a UE on secondary cells in multi-carrier scenarios that do not transmit the SCH, while minimizing the need for overhead in terms of signaling of the scrambling codes for neighbouring cells in a UTRAN system. Methods and devices for E-UTRAN are also described.
    • 提供了方法和设备,由此可以以改进的方式设置扰码。 根据一个实施例,在用户设备中提供了一种用于生成第二扰码或第二扰码组的方法。 UE被配置用于多载波操作,在包括锚定载波和至少第一辅助载波的至少两个下行链路载波的集合上接收来自通用移动电信系统陆地无线电接入网络的下行链路传输。 该方法包括:确定与主载波上的第一小区相关联的第一扰码或第一扰码组; 以及使用定义第二扰码或第二扰码组与第一扰码或扰码组之间的关系的预定义规则,导出与所述第一辅助载波上的第二小区相关联的第二扰码或第二扰码组。 因此,在未发送SCH的多载波场景中的辅小区上的UE的接收机中实现干扰抑制/消除处理,同时最小化在UTRAN系统中用于相邻小区的扰码的信令方面的开销需求 。 还描述了用于E-UTRAN的方法和设备。
    • 3. 发明申请
    • METHODS AND DEVICES FOR UPLINK DIVERSITY TRANSMISSION
    • 上传多媒体传输的方法和设备
    • WO2011043720A1
    • 2011-04-14
    • PCT/SE2010/051067
    • 2010-10-04
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)KAZMI, MuhammadDRUGGE, OskarBERGMAN, Johan
    • KAZMI, MuhammadDRUGGE, OskarBERGMAN, Johan
    • H04B7/06
    • H04B7/0417H04B7/0404H04B7/0623H04B7/0628H04B7/0689H04B7/0691H04L1/1812H04W52/241H04W52/42
    • Methods and devices are provided wherein a user equipment transmits using at least two uplink transmit antennas and receives a set of control signals in the downlink direction from a cellular network. The user equipment estimates a received signal quality for each control signal in said set of control signals and determines, based on said received signal quality, which control signals that have been reliably received. The user equipment derives one or more parameters related to the uplink transmit diversity operation using a subset of control signals from the set of control signals, said subset only including control signals determined as reliably received; and transmits in the uplink direction applying the derived one or more parameters to control the uplink transmit diversity operation. The accuracy of the transmit diversity parameter values derived/set by the UE can be improved. This will enhance the performance of the uplink transmit diversity and will also reduce interference to the neighbor cells.
    • 提供了一种方法和设备,其中用户设备使用至少两个上行链路发射天线进行传输,并从蜂窝网络接收下行链路方向上的一组控制信号。 用户设备估计所述控制信号组中每个控制信号的接收信号质量,并且基于所述接收到的信号质量确定哪些控制信号已被可靠地接收。 所述用户设备使用来自所述一组控制信号的控制信号的子集,导出与所述上行链路发射分集操作相关的一个或多个参数,所述子集仅包括被确定为可靠接收的控制信号; 并且在上行方向发送应用所导出的一个或多个参数以控制上行链路发射分集操作。 可以提高由UE导出/设置的发送分集参数值的精度。 这将增强上行链路发射分集的性能,并且还将减少对相邻小区的干扰。
    • 5. 发明申请
    • RELATIVE FREQUENCY ERROR COMPENSATION FOR MULTI-CARRIER RECEIVERS
    • 多载波接收机的相对频率误差补偿
    • WO2010003718A1
    • 2010-01-14
    • PCT/EP2009/055757
    • 2009-05-13
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)DRUGGE, OskarGHASEMZADEH, FarshidWALLÈN, Anders
    • DRUGGE, OskarGHASEMZADEH, FarshidWALLÈN, Anders
    • H04L27/00
    • H04L27/0014H04L2027/0024
    • A wireless receiver utilizes a single analog oscillator (40) to down-convert (24, 34) multi-carrier signals in one or more receiver front-end paths (22, 24, 26, 32, 34, 36). The received signals are digitized (28, 38), and the different carrier signals received at each antenna (22, 32) are separated in digital domain (42) by mixing the digitized signal from each antenna with a carrier/antenna separation digital oscillator to down-convert a desired carrier signal and low-pass filtering to remove unwanted carriers. A coarse frequency correction (56) adjusts the analog oscillator (40), and fine frequency corrections (58) adjust digital oscillators mixing with the separated signals. In one embodiment, the fine frequency correction is applied to the carrier/antenna separation digital oscillators in the separation function (42). In another embodiment, the fine frequency correction is applied to frequency adjustment digital oscillators mixing with the separated signals. The frequency corrections may be based on reference symbols in the received signals.
    • 无线接收器利用单个模拟振荡器(40)在一个或多个接收器前端路径(22,24,26,32,34,36)中对(14,34)多载波信号进行下变频(24,34)。 接收的信号被数字化(28,38),并且在每个天线(22,32)处接收的不同载波信号在数字域(42)中被分离,通过将来自每个天线的数字化信号与载波/天线分离数字振荡器混合到 下转换期望的载波信号和低通滤波以去除不需要的载波。 粗调频率校正(56)调节模拟振荡器(40),精细频率校正(58)调节与分离信号混合的数字振荡器。 在一个实施例中,精细频率校正被应用于分离功能(42)中的载波/天线分离数字振荡器。 在另一个实施例中,精细频率校正被应用于与分离的信号混合的频率调节数字振荡器。 频率校正可以基于接收信号中的参考符号。
    • 7. 发明申请
    • METHOD AND APPARATUS FOR ALLOCATING PROCESSING DELAYS IN MULTI-CARRIER SYSTEMS
    • 在多载波系统中分配处理延迟的方法和装置
    • WO2010097396A1
    • 2010-09-02
    • PCT/EP2010/052308
    • 2010-02-24
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)JONSSON, EliasDRUGGE, Oskar
    • JONSSON, EliasDRUGGE, Oskar
    • H04L5/00H04L5/02
    • H04L25/03019H04B1/7115H04B1/7117H04L25/0206H04L2025/03414
    • A multi-carrier linear equalization receiver, e.g., a RAKE receiver or chip equalization receiver, is described herein. The multi-carrier receiver distributes processing delays among a plurality of received carriers based on a comparison between the signal-to-interference ratios (SIRs) determined for each carrier. The receiver initially allocates a minimum number of processing delays to each carrier. In one embodiment, any remaining additional processing delays are distributed evenly between the carriers when a comparison between the largest and smallest SIR is less than or equal to a threshold. In another embodiment, the remaining additional processing delays are distributed to favor the carrier(s) with the strongest SIR(s) when the comparison between the largest and smallest SIR exceeds the threshold. By distributing the additional processing delays to favor the carriers with the strongest SIRs, the embodiments of the present invention enable system designers to limit the total number of available processing delays without sacrificing performance.
    • 这里描述了多载波线性均衡接收机,例如RAKE接收机或码片均衡接收机。 多载波接收机基于为每个载波确定的信号干扰比(SIR)之间的比较,在多个接收载波中分配处理延迟。 接收机最初为每个载波分配最少数量的处理延迟。 在一个实施例中,当最大和最小SIR之间的比较小于或等于阈值时,任何剩余的附加处理延迟均匀地分布在载波之间。 在另一个实施例中,当最大SIR和最小SIR之间的比较超过阈值时,分配剩余的附加处理延迟以支持具有最强SIR的载波。 通过分配附加的处理延迟以有利于具有最强SIR的载波,本发明的实施例使得系统设计者能够在不牺牲性能的情况下限制可用处理延迟的总数。