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11.发明公开METHOD AND APPARATUS FOR RECEIVED SIGNAL PROCESSING IN A MULTI-STAGE RECEIVER 审中-公开FOR处理方法和设备接收信号在多级接收机
公开(公告)号：EP2751965A1
公开(公告)日：2014-07-09
申请号：EP12775304.4
申请日：2012-08-22
发明人： KHAYRALLAH, Ali , GRANT, Stephen
IPC分类号： H04L25/03
CPC分类号： H04L25/03178 , H04L2025/03426
摘要： The present disclosure provides an apparatus (30) and method (100) for advantageously simplifying joint detection processing in one or more demodulation stages (62) of a multi-stage receiver (34) by configuring at least one stage (62) to use a constrained multi-user search, such as a (constrained tree search. For example, a multi-stage receiver (34) includes at least two stages (62-1, 62-2) configured to successively process a received composite signal (40) that includes signal contributions (42-1, 42-2) from two or more "users" (46), which, for example, means that the received signal. (40) includes two or more symbol streams, in a non-limiting example,, particular embodiments of the present invention combines constrained tree searching with Serial Localized Indecision (SLIC) processing in a multi-stage receiver (34), where each stage (62) includes a joint processing unit (82). At least one of those stages (62) is configured to use a constrained multi-user search, rather than a full search, for jointly detecting symbols (44) in the stage input signal (66).
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12.发明授权
公开(公告)号：EP2253072B1
公开(公告)日：2014-06-25
申请号：EP09715193.0
申请日：2009-02-16
发明人： GRANT, Stephen
IPC分类号： H04B1/707
CPC分类号： H04B7/0417 , H04B1/712 , H04B2201/709727
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公开(公告)号：EP2486674A2
公开(公告)日：2012-08-15
申请号：EP10776819.4
申请日：2010-10-05
发明人： GRANT, Stephen
CPC分类号： H04B7/024 , H04B1/7115 , H04B7/0495 , H04B7/0848 , H04B7/0854 , H04B7/0874
摘要： Teachings herein offer reduced-complexity coordinated multipoint (CoMP) reception of an uplink signal transmitted by a mobile terminal. The teachings obtain, for each sector antenna in a set of sector antennas deployed in a CoMP cell, a signal strength measurement of one or more downlink signals received by the mobile terminal from a sector associated with that sector antenna. The teachings compare the signal strength measurements and then select from the set, based on that comparison, a subset of sector antennas, for CoMP reception of the uplink signal B) using a subset of sector antennas for CoMP reception, instead of all sector antennas in the set, the teachings i educe the computational complexity of CoMP reception Moreover, the teachings in some embodiments minimize any performance degradation possibly resulting from performing CoMP reception with a reduced number of antennas, by selecting the subset to include sector antennas having the strongest signal strength measurements.
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14.发明公开A METHOD AND APPARATUS FOR UPLINK POWER CONTROL IN A WIRELESS COMMUNICATION NETWORK 有权方法和装置用于上行功率控制在无线通信网络
公开(公告)号：EP2474189A1
公开(公告)日：2012-07-11
申请号：EP10757632.4
申请日：2010-08-30
CPC分类号： H04W52/08 , H04W52/146 , H04W52/20 , H04W52/245 , H04W52/265 , H04W52/267 , H04W52/286 , H04W52/325
摘要： A method and apparatus provide advantageous uplink power control for a set of uplink channels transmitted by a mobile terminal or other item of user equipment (UE). The proposed uplink power control maintains the total received power for the set of uplink channels at or about a target received power, while also maintaining the received signal quality for a subset of those channels---e.g, a particular one of them---at or about a target received signal qualify. In an advantageous but non-limiting example embodiment, the subset comprises a fixed-rate control channel, and the set includes that control channel and a variable-rate traffic channel Correspondingly, a base station generates first power control commands to maintain the received signal quality of the control channel at or about some quality target, and generates second power control commands to maintain the total received power (of the two channels) at or about some power target.
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15.发明公开SCHEDULING AND RATE CONTROL COORDINATION ACCOUNTING FOR INTERFERENCE CANCELLATION AT A MOBILE TERMINAL 有权平底山野生动植物保护基金会UR UR UR UR UNG UNG T T T T T T T T T T T T T T T T T
公开(公告)号：EP2921021A1
公开(公告)日：2015-09-23
申请号：EP13802113.4
申请日：2013-11-12
CPC分类号： H04W72/1231 , H04J11/004 , H04W72/1205 , Y02D70/1242 , Y02D70/1262
摘要： Devices and methods for scheduling and interference cancellation that consider the interference cancellation capability of user equipment (UEs) are disclosed. Using reduced-rate sub-frame (or resource block) strategies, the transmission data rate to a scheduled user in a given cell may be reduced to ensure effective interference cancellation performance at the receiver of a co-scheduled user in another cell. By taking advantage of interference mitigation at one or more terminals, a scheduler may improve network spectral efficiency compared to existing inter-cell interference cancellation schemes, including almost blank sub-frame (ABS), further enhanced inter-cell interference coordination (FeICIC), and other resource partitioning schemes, such as reduced power sub-frames or frequency domain resource partitioning.
摘要翻译： 公开了考虑用户设备（UE）的干扰消除能力的用于调度和干扰消除的设备和方法。 使用降低速率子帧（或资源块）策略，可以减少给定小区中的调度用户的传输数据速率，以确保在另一小区中的共同调度用户的接收机处的有效干扰消除性能。 通过利用一个或多个终端处的干扰减轻，与现有的小区间干扰消除方案相比，调度器可以提高网络频谱效率，包括几乎空白的子帧（ABS），进一步增强的小区间干扰协调（FeICIC） 和其他资源分配方案，如减少功率子帧或频域资源划分。
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16.发明公开METHOD AND APPARATUS FOR USE IN A MOBILE COMMUNICATION NETWORK 有权VERFAHREN VORRICHTUNG ZUR VERWENDUNG在EINEM MOBILKOMMUNIKATIONSNETZWERK
公开(公告)号：EP2880948A2
公开(公告)日：2015-06-10
申请号：EP13825040.2
申请日：2013-07-30
CPC分类号： H04W36/32 , H04B7/022 , H04W16/32 , H04W52/146 , H04W52/242 , H04W52/283 , H04W52/325 , H04W52/386 , H04W76/15 , H04W84/045 , Y02D70/00
摘要： There is provided a method of operating a network node in a communication network, the communication network comprising a mobile device, a first base station and a second base station, the first base station having a lower transmission power than the second base station and being located within the coverage area of the second base station, the mobile device being located within an imbalanced region between the first base station and the second base station and being served by the first base station, the method in the network node comprising configuring the mobile device, the first base station and the second base station such that the mobile device transmits uplink data to the first base station, and the mobile device receives downlink data only from the second base station. Corresponding methods are provided for operating a mobile device and a second base station. A network node, mobile device and second base station are also provided that are configured to perform the respective operating methods.
摘要翻译： 提供了一种在通信网络中操作网络节点的方法，所述通信网络包括移动设备，第一基站和第二基站，所述第一基站具有比所述第二基站更低的发射功率并且被定位 在第二基站的覆盖区域内，移动设备位于第一基站和第二基站之间的不平衡区域内并由第一基站服务，网络节点中的方法包括配置移动设备， 第一基站和第二基站，使得移动设备向第一基站发送上行链路数据，并且移动设备仅从第二基站接收下行链路数据。 提供了用于操作移动设备和第二基站的相应方法。 还提供了被配置为执行各自的操作方法的网络节点，移动设备和第二基站。
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17.发明公开SIGNALING OF OTHER-CELL SIGNAL'S CONFIGURATION INFORMATION TO FACILITATE INTERFERENCE CANCELLATION AT A MOBILE TERMINAL 有权信令信号的配置信息的另一小区，用于使干扰降低在移动终端中
公开(公告)号：EP2823570A2
公开(公告)日：2015-01-14
申请号：EP13757913.2
申请日：2013-01-15
IPC分类号： H04B1/7107 , H04B1/10 , H04J11/00
CPC分类号： H04W24/02 , H04B1/10 , H04B1/7097 , H04J11/005 , H04W28/0236 , H04W40/16 , H04W52/0238 , H04W72/082 , H04W74/0841 , Y02D70/1262
摘要： In MU-MIMO scenarios, a target terminal can be exposed to data streams intended for other terminals. If the target terminal is capable of interference cancellation, then a network node, such as a base station or RNC, can provide the target terminal with interference information so that the target terminal can efficiently cancel interferences due to these interfering data streams. The interference information may include one or more interfering configuration, each of which characterizes a related interfering data stream. The interference information can also include the identity of the other terminal that is the intended recipient of the interfering stream. The network node may determine whether the target terminal can benefit from the interference information. If so, the network node can provide the interference information to the target terminal.
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公开(公告)号：EP2486674B1
公开(公告)日：2014-01-29
申请号：EP10776819.4
申请日：2010-10-05
发明人： GRANT, Stephen
IPC分类号： H04B1/7115 , H04B7/04 , H04B7/08 , H04B7/02 , H04B1/707
CPC分类号： H04B7/024 , H04B1/7115 , H04B7/0495 , H04B7/0848 , H04B7/0854 , H04B7/0874
摘要： Teachings herein offer reduced-complexity coordinated multipoint (CoMP) reception of an uplink signal transmitted by a mobile terminal. The teachings obtain, for each sector antenna in a set of sector antennas deployed in a CoMP cell, a signal strength measurement of one or more downlink signals received by the mobile terminal from a sector associated with that sector antenna. The teachings compare the signal strength measurements and then select from the set, based on that comparison, a subset of sector antennas for CoMP reception of the uplink signal. By using a subset of sector antennas for CoMP reception, instead of all sector antennas in the set, the teachings reduce the computational complexity of CoMP reception. Moreover, the teachings in some embodiments minimize any performance degradation possibly resulting from performing CoMP reception with a reduced number of antennas, by selecting the subset to include sector antennas having the strongest signal strength measurements.
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公开(公告)号：EP2583529A1
公开(公告)日：2013-04-24
申请号：EP11770905.5
申请日：2011-06-13
发明人： GRANT, Stephen , SÅGFORS, Mats , PARKVALL, Stefan
IPC分类号： H04W76/02
CPC分类号： H04W76/16 , H04W88/06 , H04W88/10 , H04W88/12 , H04W92/045
摘要： A signaling mechanism informs a Radio Network Controller of the radio access technology associated with data packets forwarded to the Radio Network Controller from base stations supporting multiple radio access technologies. With this information, the Radio Network Controller can associate received data with the corresponding radio access technologies, and thus manage differing physical layer procedures, such as outer-loop power control, for the radio access technologies. In an example method, first and second data units transmitted by a mobile station over first and second radio access technologies, respectively, are forwarded from one or more base stations to a network control node for further processing. A control message associated with at least some of the data units is also sent to the network control node, the control message indicating the radio access technology over which the associated data units were transmitted.
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20.发明公开REDUCED-COMPLEXITY PARAMETRIC COVARIANCE ESTIMATION FOR PRECODED MIMO TRANSMISSIONS 有权参协方差降低了复杂性预编码后的MIMO传输
公开(公告)号：EP2253071A1
公开(公告)日：2010-11-24
申请号：EP09714533.8
申请日：2009-02-11
发明人： GRANT, Stephen , CAIRNS, Douglas
IPC分类号： H04B1/707
CPC分类号： H04L25/03898 , H04B1/712 , H04B7/0413 , H04B7/0619 , H04B17/21 , H04B17/336 , H04B2201/70707 , H04B2201/709727
摘要： A model-based technique for estimating impairment covariance associated with a MIMO signal is disclosed. In an exemplary method, an impairment model is constructed for a received composite information signal comprising at least a first data stream transmitted from first and second antennas according to a first antenna weighting vector. The impairment model includes first and second model terms corresponding to the first and second antennas, respectively, but does not include a cross-antenna interference term. In another embodiment, an impairment model for a received MIMO signal is constructed by computing an impairment model term for each antenna and an additional term to account for precoding interference in a single-stream MIMO transmission scenario. The impairment terms are grouped so that only two associated scaling terms are unknown; values for the scaling terms are estimated by fitting the model to measured impairment covariance values.
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