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1. 发明申请

WO2007089199A2 METHOD AND ARRANGEMENT IN A TELECOMMUNICATION SYSTEM 审中-公开
标题翻译：电信系统中的方法和布置
公开(公告)号：WO2007089199A2
公开(公告)日：2007-08-09
申请号：PCT/SE2007/050037
申请日：2007-01-24
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , SAHLIN, Henrik , HAARTSEN, Jacobus , BALDEMAIR, Robert , PARKVALL, Stefan , PETERS, Gunnar
发明人： SAHLIN, Henrik , HAARTSEN, Jacobus , BALDEMAIR, Robert , PARKVALL, Stefan , PETERS, Gunnar
IPC分类号： H04B1/707 , H04J3/06 , H04Q7/38
CPC分类号： H04W74/0833 , H04J13/0003 , H04L27/2607 , H04L27/2613 , H04W74/08
摘要： There is provided a method of operating a communication system, the communication system comprising a user equipment and a receiver, the method in the system comprising generating a random access transmission in a user equipment and transmitting the random access transmission to the receiver in the communication system, the random access transmission including a preamble; receiving the random access transmission from the user equipment at the receiver; processing the random access transmission in the frequency domain to detect the preamble. In preferred embodiments of the invention, the preamble has a cyclic prefix, or is preceded by a plurality of zero-valued symbols.
摘要翻译：提供了一种操作通信系统的方法，所述通信系统包括用户设备和接收机，所述系统中的方法包括在用户设备中生成随机接入传输并将所述随机接入传输发送到所述通信系统中的接收机，所述随机接入传输包括前同步码; 在接收机处接收来自用户设备的随机接入传输; 处理频域中的随机接入传输以检测前导码。在本发明的优选实施例中，前导码具有循环前缀，或者在多个零值符号之前。

2. 发明申请

WO2008041916A1 METHOD FOR REDUCING INTRA-CELL INTERFERENCE BETWEEN CELL PHONES PERFORMING RANDOM ACCESS 审中-公开
标题翻译：减少执行随机访问的细胞信号之间的细胞间干扰的方法
公开(公告)号：WO2008041916A1
公开(公告)日：2008-04-10
申请号：PCT/SE2007/050467
申请日：2007-06-26
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , PARKVALL, Stefan , HAARTSEN, Jacobus , BALDEMAIR, Robert
发明人： PARKVALL, Stefan , HAARTSEN, Jacobus , BALDEMAIR, Robert
IPC分类号： H04Q7/38 , H04B1/707
CPC分类号： H04W74/002 , H04B1/7103 , H04B2201/709709 , H04J11/0026 , H04J13/004 , H04J13/18 , H04W16/10 , H04W72/08 , H04W74/0833
摘要： The invention relates to a method in a network node in control of a cell in a cellular telecommunication network for reducing intra-cell interference between user equipments (UE) (10) residing in said cell and performing random access (RA). The method comprises the steps of arranging groups (12, 12a, 12b) of preamble sequences where the sequences within each group are orthogonal to each other, - assigning one such group (12) to the cell (11), from which group the UEs performing RA randomly selects a preamble, and - assigning one or more additional group (s) (12a, 12b) of preamble sequences to said cell if the RACH or traffic load exceeds a certain threshold. The invention further relates to a radio network node in a cellular telecommunication system, capable of carrying out said method.
摘要翻译：本发明涉及网络节点中控制蜂窝电信网络中的小区的方法，用于减少驻留在所述小区中的用户设备（UE）（10）和执行随机接入（RA）之间的小区内干扰。该方法包括以下步骤：排列前序序列的组（12,12a，12b），其中每个组内的序列彼此正交; - 将一个这样的组（12）分配给小区（11），从该组如果RACH或业务负载超过某个阈值，则执行RA随机地选择前导码，以及 - 向所述小区分配前导序列的一个或多个附加组（12a，12b）。本发明还涉及能够执行所述方法的蜂窝电信系统中的无线电网络节点。

3. 发明申请

WO2008043629A1 EFFICIENT CLOCK CALIBRATION IN ELECTRONIC EQUIPMENT 审中-公开
标题翻译：电子设备高效时钟校准
公开(公告)号：WO2008043629A1
公开(公告)日：2008-04-17
申请号：PCT/EP2007/059491
申请日：2007-09-11
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , HAARTSEN, Jacobus
发明人： HAARTSEN, Jacobus
IPC分类号： H03L7/00 , G01R23/10
CPC分类号： H03L7/00 , H03L1/00
摘要： A representative measurement indicating a relative oscillation speed of a reference clock during a representative calibration period is ascertained. Multiple calibration periods are defined including first and second calibration periods. The first calibration period begins at a first start time, wherein a first time offset value is equal to a difference between the first start time and a transition point of the reference clock signal within the first calibration period. The second calibration period begins at a second start time, wherein a second time offset value is equal to a difference between the second start time and a transition point of the reference clock signal within the second calibration period. The first and second time offset values are different from one another. Measurements are generated by, for each one of the calibration periods, measuring the speed of the reference clock. The measurements are then averaged.
摘要翻译：确定表示在代表性校准周期期间参考时钟的相对振荡速度的代表性测量。定义多个校准周期，包括第一和第二校准周期。第一校准周期从第一开始时间开始，其中第一时间偏移值等于在第一校准周期内第一起始时间和参考时钟信号的转变点之间的差。第二校准周期从第二开始时间开始，其中第二时间偏移值等于第二开始时间和第二校准周期内参考时钟信号的转变点之间的差值。第一和第二时间偏移值彼此不同。对于每个校准周期，测量参考时钟的速度。然后将测量值进行平均。

4. 发明申请

WO2008107252A1 RANDOM ACCESS IN TIME DIVISION DUPLEX COMMUNICATION SYSTEMS 审中-公开
标题翻译：时分双工通信系统随机访问
公开(公告)号：WO2008107252A1
公开(公告)日：2008-09-12
申请号：PCT/EP2008/051327
申请日：2008-02-04
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , HAARTSEN, Jacobus
发明人： HAARTSEN, Jacobus
IPC分类号： H04B7/26
CPC分类号： H04B7/2681 , H04W56/003 , H04W56/0045 , H04W74/0833
摘要： A mobile terminal is operated in a cellular communications system that comprises a base station operating in a time division duplex mode. The mobile terminal detects a downlink transmission from the base station and determines therefrom a future moment in time at which an end part of a downlink transmission just prior to a random access window will become detectable at the mobile terminal. An uplink random access transmission is begun at a moment in time that is before the future moment in time. The moment in time that is before the future moment in time can be a fixed amount of time before the future moment in time. If the mobile terminal is not near the edge of the cell, the base station may consequently receive only a partial uplink random access transmission, but this does not detrimentally affect performance.
摘要翻译：移动终端在包括以时分双工模式操作的基站的蜂窝通信系统中操作。移动终端检测来自基站的下行链路传输，并由此确定在随机接入窗口之前的下行链路传输的结束部分将在移动终端处可检测到的未来时刻。在未来时间之前的时刻开始上行链路随机接入传输。在未来时间之前的时刻可能是未来时间之前的固定时间量。如果移动终端不在小区的边缘附近，则基站因此可以仅接收部分上行链路随机接入传输，但是这不会不利地影响性能。

5. 发明申请

WO2009033945A1 POWER-AWARE SELECTION OF RADIO ACCESS TECHNOLOGY 审中-公开
标题翻译：无线电接入技术的功率选择
公开(公告)号：WO2009033945A1
公开(公告)日：2009-03-19
申请号：PCT/EP2008/061118
申请日：2008-08-26
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LINDOFF, Bengt , HAARTSEN, Jacobus , WALLÉN, Anders
发明人： LINDOFF, Bengt , HAARTSEN, Jacobus , WALLÉN, Anders
IPC分类号： H04W48/18
CPC分类号： H04W48/18 , H04W28/18 , H04W48/16 , H04W52/0229 , H04W88/06 , Y02D70/1222 , Y02D70/1262 , Y02D70/142 , Y02D70/146 , Y02D70/164 , Y02D70/23 , Y02D70/24 , Y02D70/25
摘要： Methods and apparatus are disclosed for operating a multi-mode wireless communications device to select a radio access technology (RAT) requiring the lowest energy consumption by the device for a desired operating mode. An exemplary method comprises scanning a plurality of frequency bands to determine a set of available radio access technologies that support the desired operating mode, and evaluating, for each available RAT, RAT-specific system parameters and RAT-specific operating conditions. Based on the evaluation, the RAT requiring the lowest energy consumption by the wireless device for the desired operating mode is selected.
摘要翻译：公开了用于操作多模式无线通信设备以选择要求所需操作模式的设备所需的最低能量消耗的无线电接入技术（RAT）的方法和装置。一种示例性方法包括扫描多个频带以确定支持期望操作模式的一组可用的无线电接入技术，以及针对每个可用的RAT评估特定于RAT的系统参数和特定于RAT的操作条件。基于该评估，选择由无线设备为期望的操作模式需要最低能耗的RAT。

6. 发明申请

WO2008090212A1 ULTRA-WIDEBAND MODE SELECTION 审中-公开
标题翻译：超宽带模式选择
公开(公告)号：WO2008090212A1
公开(公告)日：2008-07-31
申请号：PCT/EP2008/050875
申请日：2008-01-25
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , HAARTSEN, Jacobus
发明人： HAARTSEN, Jacobus
IPC分类号： H04B1/69
CPC分类号： H04B1/719 , H04B1/71635 , H04L5/0037 , H04L5/0058 , H04L5/0091 , H04L27/0006
摘要： A device (100) that uses Ultra-Wideband modulation techniques is operated in a low duty cycle (LDC) mode in which an amount of time during which the device is permitted to transmit a signal is limited. In response to ascertaining that a high- throughput service is to be performed, the device operates in a detect and avoid (DAA) mode in which it is permitted to transmit continuously on a selected frequency band at a maximum output power until a victim service is detected operating on the selected frequency band. In response to a victim service being detected, the device is again operated in the low duty cycle mode while attempting to identify another frequency band in which to operate the device in the detect and avoid mode. Measures can be taken to maintain a comparable QoS in LDC mode while the device searches for a new DAA mode frequency band.
摘要翻译：使用超宽带调制技术的设备（100）在低占空比（LDC）模式下操作，其中允许设备发送信号的时间量受到限制。响应于确定要执行高吞吐量服务，设备以检测和避免（DAA）模式工作，其中允许其以最大输出功率在所选频带上连续发送，直到受害者服务为检测到在所选频带上的操作。响应于检测到的受害者服务，在尝试在检测和避免模式下识别操作设备的另一个频带时，设备再次以低占空比模式工作。在设备搜索新的DAA模式频带时，可以采取措施在LDC模式下维持可比较的QoS。

7. 发明申请

WO2008037739A2 REDUCTION OF PEAK-TO-AVERAGE-POWER RATIO IN A TELECOMMUNICATIONS SYSTEM 审中-公开
标题翻译：降低电力系统中的平均功率比
公开(公告)号：WO2008037739A2
公开(公告)日：2008-04-03
申请号：PCT/EP2007/060215
申请日：2007-09-26
申请人： Telefonaktiebolaget LM Ericsson (publ) , HAARTSEN, Jacobus
发明人： HAARTSEN, Jacobus
IPC分类号： H04L27/26
CPC分类号： H04L27/2614 , H04L27/2615
摘要： A single-carrier signal is generated from a number, N , of symbols in a way that results in a low PAPR. This includes generating an initial set of N complex frequency components from the N symbols. N s different sets of N complex frequency components are generated by, for each of N s times, permuting the initial set of N complex frequency components by one of N s possible permutations. N s different sets of M complex frequency components are generated by mapping each of the Ns different sets of N complex frequency components onto a set of M carrier frequencies. After shaping, an IDFT generates a candidate set of N time-domain symbols from each of the N s different sets of M complex frequency components. That one of the N s different candidate sets of N time-domain symbols that is associated with the smallest PAPR is selected for further processing.
摘要翻译：以导致低PAPR的方式从N个符号生成单载波信号。这包括从N个符号生成初始的一组N个复频分量。 N

8. 发明申请

WO2007147788A1 MOBILE ASSISTED TIMING ALIGNMENT 审中-公开
标题翻译：移动辅助定时对齐
公开(公告)号：WO2007147788A1
公开(公告)日：2007-12-27
申请号：PCT/EP2007/055975
申请日：2007-06-15
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LINDOFF, Bengt , HAARTSEN, Jacobus
发明人： LINDOFF, Bengt , HAARTSEN, Jacobus
IPC分类号： H04B7/26 , H04J3/06
CPC分类号： H04W56/0045 , H04B7/2681
摘要： Timing alignment of User Equipment (UE) in a communications system is maintained by measuring an environmental condition of the UE, and determining a present magnitude of change metric representing a present magnitude of change of the environmental condition relative to a baseline value. The present magnitude of change metric is combined with a previous accumulation metric to obtain a present accumulation metric. If it is detected that the present accumulation metric satisfies a predetermined relationship with respect to the threshold value (e.g., is greater than the threshold value), then the UE transmits a timing advance request. An environmental condition can be, for example, a Doppler shift of a received signal, a Received Signal Strength Indication from a received signal, a temperature within the UE, a humidity within the UE, a supply voltage of the UE, or a symbol timing of a received signal.
摘要翻译：用户设备（UE）在通信系统中的定时对齐是通过测量UE的环境状况来维持的，并且确定当前幅度的变化度量，其表示当前环境条件变化幅度相对于基准值。将当前幅度的变化量度与先前的累积度量相结合以获得当前的累积度量。如果检测到当前累积度量相对于阈值满足预定关系（例如，大于阈值），则UE发送定时提前请求。环境条件可以是例如接收信号的多普勒频移，来自接收信号的接收信号强度指示，UE内的温度，UE内的湿度，UE的电源电压或符号定时的接收信号。

9. 发明申请

WO2008145454A1 RANDOM ACCESS COLLISION DETECTION 审中-公开
标题翻译：随机访问冲突检测
公开(公告)号：WO2008145454A1
公开(公告)日：2008-12-04
申请号：PCT/EP2008/054600
申请日：2008-04-16
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , HAARTSEN, Jacobus
发明人： HAARTSEN, Jacobus
IPC分类号： H04L12/413 , H04B1/707 , H04L1/16
CPC分类号： H04L12/413 , H04B1/7113 , H04B1/7117 , H04L1/1607 , H04W74/08
摘要： A receiver in a communication system correlates incoming signals, which may be sent by several transmitters, with one or more predetermined sequences. The receiver should take the maximum delay spread into account in determining whether a collision between incoming signals has occurred. For example, the receiver may decide that a collision has occurred only if two correlation peaks are separated in time by more than the maximum delay spread.
摘要翻译：通信系统中的接收机将可由几个发射机发送的输入信号与一个或多个预定序列相关联。在确定进入信号之间是否发生碰撞时，接收机应考虑最大延迟扩展。例如，接收机可以决定仅当两个相关峰值在时间上分离超过最大延迟扩展时才发生冲突。

10. 发明申请

WO2008088252A1 A METHOD AND A DEVICE FOR ENHANCED PERFORMANCE IN A WIRELESS ACCESS TDD SYSTEM 审中-公开
标题翻译：一种无线接入TDD系统中增强性能的方法和装置
公开(公告)号：WO2008088252A1
公开(公告)日：2008-07-24
申请号：PCT/SE2007/050017
申请日：2007-01-15
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , TYNDERFELDT, Tobias , ASTELY, David , EKSTRÖM, Hannes , WESTERBERG, Erik , NEJATIAN, Alireza , SKILLERMARK, Per , HAARTSEN, Jacobus
发明人： TYNDERFELDT, Tobias , ASTELY, David , EKSTRÖM, Hannes , WESTERBERG, Erik , NEJATIAN, Alireza , SKILLERMARK, Per , HAARTSEN, Jacobus
IPC分类号： H04B7/26
CPC分类号： H04B7/2656 , H04W56/00 , H04W72/1278
摘要： The invention discloses a method (700) for use in a wireless access (100) comprising a base station (120, 800) and a cell (110) which can accommodate a first user terminal (130, 140). In the system, the first user terminal (130, 140) can be scheduled for receiving traffic from the base station (120) during a down link interval, and the first user terminal (130, 140) can be scheduled for transmitting traffic to the base station (120, 800) during an up link interval, with a guard period between them. According to the invention, the method (700) comprises the step (710) of obtaining a certain characteristic of the first user terminal which is relevant to the guard period, and the step (720) of making the scheduling in at least one of the intervals based upon the measured characteristic of the first user terminal (130, 140).
摘要翻译：本发明公开了一种用于无线接入（100）的方法（700），包括基站（120,800）和可容纳第一用户终端（130,140）的小区（110）。在系统中，可以调度第一用户终端（130,140）以在下行链路间隔期间从基站（120）接收业务，并且可以调度第一用户终端（130,140）以将业务传输到基站（120,800）在上行链路间隔期间具有保护周期。根据本发明，所述方法（700）包括获得与所述保护期相关的所述第一用户终端的某一特性的步骤（710），以及在所述保护时段中的至少一个中进行所述调度的步骤（720）基于第一用户终端（130,140）的测量特性的间隔。

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