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41. 发明申请

WO2013170911A1 INTER-LAYER INTERFERENCE HANDLING IN HETEROGENEOUS NETWORKS 审中-公开
标题翻译：异构网络中的层间干扰处理
公开(公告)号：WO2013170911A1
公开(公告)日：2013-11-21
申请号：PCT/EP2012/064860
申请日：2012-07-30
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , DAHLMAN, Erik , ASTELY, David , SORRENTINO, Stefano , LINDOFF, Bengt , WILHELMSSON, Leif , HAMMARWALL, David , PARKVALL, Stefan
发明人： DAHLMAN, Erik , ASTELY, David , SORRENTINO, Stefano , LINDOFF, Bengt , WILHELMSSON, Leif , HAMMARWALL, David , PARKVALL, Stefan
IPC分类号： H04W52/24
CPC分类号： H04W52/244 , H04W48/08 , H04W52/36 , H04W84/045
摘要： In a heterogeneous network cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, relevant data (e.g. control information) transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node (i.e. simultaneously to the macro node during the same protected transmission time intervals).
摘要翻译：在异构网络小区部署中，移动终端可能需要在微微节点正在使用相同的频率或频率集合为移动终端发送用户数据的同时从宏节点接收控制数据传输。这可能导致有问题的干扰情况。根据本发明的几个实施例，使用两种一般方法中的至少一种来减轻上述干扰情况。在第一种方法中，微微节点的传输功率在一些时间间隔内减小，从而将干扰降低到可能从宏节点接收的水平。在一些可能与第一种方法组合的第二种方法中，从宏节点发送的相关数据（例如，控制信息）由微微节点提供，单独或与宏节点组合（即同时到达宏节点在相同的受保护传输时间间隔期间）。

42. 发明申请

WO2013141770A1 DYNAMIC CONFIGURATION OF SUBFRAMES IN A RADIO COMMUNICATIONS SYSTEM 审中-公开
标题翻译：无线电通信系统中子帧的动态配置
公开(公告)号：WO2013141770A1
公开(公告)日：2013-09-26
申请号：PCT/SE2012/050322
申请日：2012-03-22
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SUSITAIVAL, Riikka , ERIKSSON, Erik , ASTELY, David
发明人： SUSITAIVAL, Riikka , ERIKSSON, Erik , ASTELY, David
IPC分类号： H04W72/12
CPC分类号： H04W72/1205 , H04L5/1469 , H04W72/0446
摘要： The technology disclosed provides the ability for a subframe to be dynamically configured in time division duplex (TDD) communications between a UE radio terminal (40) and a radio network node (10). A frame structure includes one or more subframes preconfigured as a downlink subframe, one or more subframes preconfigured as an uplink subframe, and one or more dynamically configurable subframes. Each dynamically configurable subframe includes a guard time period and at least a downlink part for transporting a dynamically configurable amount of downlink information, and in some embodiments, uplink information. A configuration for dynamically configurable subframes is determined for transmission and/or reception between the UE radio terminal and the radio network node.
摘要翻译：所公开的技术提供了在UE无线电终端（40）和无线电网络节点（10）之间的时分双工（TDD）通信中动态地配置子帧的能力。帧结构包括预配置为下行链路子帧的一个或多个子帧，预配置为上行链路子帧的一个或多个子帧以及一个或多个可动态配置的子帧。每个动态可配置的子帧包括保护时间周期和用于传送动态可配置量的下行链路信息的至少下行链路部分，并且在一些实施例中包括上行链路信息。确定用于可动态配置的子帧的配置用于UE无线电终端和无线电网络节点之间的发送和/或接收。

43. 发明申请

WO2013139350A1 TECHNIQUE FOR OPERATING A NETWORK NODE IN A HETEROGENEOUSLY DEPLOYED NETWORK 审中-公开
标题翻译：在异构网络中操作网络节点的技术
公开(公告)号：WO2013139350A1
公开(公告)日：2013-09-26
申请号：PCT/EP2012/001238
申请日：2012-03-21
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , PARKVALL, Stefan , ASTELY, David , DAHLMAN, Erik , FRENGER, Pål
发明人： PARKVALL, Stefan , ASTELY, David , DAHLMAN, Erik , FRENGER, Pål
IPC分类号： H04W24/02
CPC分类号： H04W52/18 , H04W16/32 , H04W24/02 , H04W48/12 , H04W84/045
摘要： A technique for operating a network node in a heterogeneously deployed network comprising network nodes of different nominal transmit powers and at least partially overlapping coverage areas is described. A method implementation of this technique comprises a step of operating the network node in a base mode in which the network node is configured to transmit terminal-specific demodulation reference signals for a first set of terminal devices. The method comprises the further step of selectively activating or deactivating operation of the network node in a Single Frequency Network (SFN) mode in which the network node is configured to transmit, for a second set of terminal devices, the same cell-specific reference nodes as a another network node of the heterogeneously deployed network that has a larger nominal transmit power.
摘要翻译：描述了在包括具有不同标称发射功率和至少部分重叠覆盖区域的网络节点的异构部署网络中操作网络节点的技术。该技术的方法实现包括以基本模式操作网络节点的步骤，其中网络节点被配置为发送用于第一组终端设备的终端特定解调参考信号。该方法包括以单频网络（SFN）模式选择性地激活或去激活网络节点的操作的步骤，其中网络节点被配置为针对第二组终端设备向相同的小区特定参考节点作为具有较大额定发射功率的非均匀部署网络的另一网络节点。

44. 发明申请

WO2012148336A1 DECENTRALISED CONTROL OF INTERFERENCE REDUCTION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统干扰减少的分散控制
公开(公告)号：WO2012148336A1
公开(公告)日：2012-11-01
申请号：PCT/SE2011/050541
申请日：2011-04-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , BEHRAVAN, Ali , ASTELY, David , QIAN, Yu
发明人： BEHRAVAN, Ali , ASTELY, David , QIAN, Yu
IPC分类号： H04B7/26
CPC分类号： H04B7/2656
摘要： A first base station (14) in a wireless communication system (10) operating according to a synchronised time division duplex scheme comprises an antenna (24),a radio communication unit (26) and an interference handling module (28). The interference handling module comprises an interference investigating unit (30) and a transmission control unit (34) configured to provide a sounding frame in which a variable downlink time interval has a pre-defined size long enough to provoke interference,order the interference investigating unit to obtain and analyse a link quality data parameter in a non-downlink time interval and determine whether interference from another base station is present. The transmission control unit is further configured to order the radio communication unit (26) to reduce the size of following variable downlink time intervals according to an interference reduction scheme for obtaining time intervals with a guaranteed reduced size if interference from another base station is present.
摘要翻译：根据同步的时分双工方式操作的无线通信系统（10）中的第一基站（14）包括天线（24），无线电通信单元（26）和干扰处理模块（28）。干扰处理模块包括干扰调查单元（30）和传输控制单元（34），其被配置为提供其中可变下行链路时间间隔具有足够长的预定义尺寸以引起干扰的探测帧，命令干扰调查单元在非下行链路时间间隔中获取和分析链路质量数据参数，并确定是否存在来自另一个基站的干扰。传输控制单元还被配置为：如果存在来自另一基站的干扰，则根据用于获得具有保证减小的大小的时间间隔的干扰减少方案，命令无线电通信单元（26）减小跟随可变下行链路时间间隔的大小。

45. 发明申请

WO2012135978A1 REDUCING INTERFERENCE CAUSED BY AN ATMOSPHERIC DUCT IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：减少无线通信系统中大气干扰引起的干扰
公开(公告)号：WO2012135978A1
公开(公告)日：2012-10-11
申请号：PCT/CN2011/000607
申请日：2011-04-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , QIAN, Yu , ASTELY, David , BEHRAVAN, Ali , GAN, Jiansong
发明人： QIAN, Yu , ASTELY, David , BEHRAVAN, Ali , GAN, Jiansong
IPC分类号： H04W88/08
CPC分类号： H04W24/02 , H04B7/2656 , H04L1/205 , H04W28/04 , H04W88/08
摘要： A first base station (14) in a wireless communication system (10) operating according to a synchronised time division scheme detects interference of uplink communication, determines the delay of the interference in relation to an own communication structure (CS1), detects aerial interface identifying data of the source of interference identifying a further base station and sends an indication of the further base station interfering uplink communication to the interference handling node (22). The indication is accompanied by identification data comprising aerial interface identifying data of the further base station and distance data determining the distance (D1) between the first and the further base station. The interference handling node (37) receives the indication with accompanying identification data, investigates the identification data in order to determine the identity of a candidate for the further base station and orders the candidate base station to perform an interference limitation activity.
摘要翻译：根据同步时分方式操作的无线通信系统（10）中的第一基站（14）检测上行链路通信的干扰，确定与自身通信结构（CS1）相关的干扰延迟，检测空中接口识别识别另一个基站的干扰源的数据，并向干扰处理节点（22）发送进一步的基站干扰上行链路通信的指示。该指示伴随有识别数据，其包括另外的基站的空中接口标识数据和确定第一和另外的基站之间的距离（D1）的距离数据。干扰处理节点（37）用附带的识别数据接收指示，调查识别数据，以便确定另外基站的候选者的身份，并命令候选基站执行干扰限制活动。

46. 发明申请

WO2012064244A1 DETERMINING CONFIGURATION OF SUBFRAMES IN A RADIO COMMUNICATIONS SYSTEM 审中-公开
标题翻译：确定无线电通信系统中子帧的配置
公开(公告)号：WO2012064244A1
公开(公告)日：2012-05-18
申请号：PCT/SE2010/051305
申请日：2010-11-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , PARKVALL, Stefan , ASTELY, David , SUSITAIVAL, Riikka
发明人： PARKVALL, Stefan , ASTELY, David , SUSITAIVAL, Riikka
IPC分类号： H04W72/04
CPC分类号： H04B7/2656 , H04W72/0446
摘要： The technology disclosed provides the ability for a subframe to be configured as a "flexible" subframe. As a result, at least three different types of sub frames in a TDD system may be configured: a downlink ("DL") subframe, an uplink ("UL") subframe, and a "flexible" subframe. The use of flexible subframes is determined based on a primary TDD configuration, and in a preferred example, on the existing primary TDD configuration in the network. If there is secondary TDD configuration, flexible subframes may be determined based on both the primary and secondary configurations, e.g., using specific rules. Also, the HARQ feedback timing for downlink (DL) transmissions may be determined based on the secondary TDD configuration. Preferred examples ensure that uplink (UL) feedback does not collide with a flexible subframe used for DL transmission. The technology preferably is compatible with legacy UEs.
摘要翻译：所公开的技术提供了将子帧配置为“灵活”子帧的能力。结果，TDD系统中的至少三种不同类型的子帧可以被配置为：下行链路（“DL”）子帧，上行链路（“UL”）子帧和“灵活”子帧。基于主TDD配置，并且在优选示例中，基于网络中的现有主TDD配置来确定灵活子帧的使用。如果存在辅助TDD配置，则可以基于主配置和辅助配置来确定灵活子帧，例如使用特定规则。此外，可以基于辅助TDD配置来确定用于下行链路（DL）传输的HARQ反馈定时。优选示例确保上行链路（UL）反馈不与用于DL传输的灵活子帧冲突。该技术优选地与传统UE兼容。

47. 发明申请

WO2011136710A1 TRANSMITTER, RECEIVER AND METHODS FOR DOWNLINK CONTROL SIGNALLING 审中-公开
标题翻译：发射机，接收机和下行链路控制信令的方法
公开(公告)号：WO2011136710A1
公开(公告)日：2011-11-03
申请号：PCT/SE2010/051011
申请日：2010-09-21
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HU, Yang , SONG, Xinghua , ASTELY, David , JÖNGREN, George
发明人： HU, Yang , SONG, Xinghua , ASTELY, David , JÖNGREN, George
IPC分类号： H04L25/03 , H04L5/00
CPC分类号： H04L5/0091 , H04B7/0613 , H04B7/0665 , H04B7/0862 , H04L5/0023 , H04L5/0053
摘要： Downlink control information (DCI) extensions to support 3GPP Rel-10 functionalities comprise minimal extensions of DCI format 2B. In some embodiments, only two extra bits (20) are introduced to signal rank up to eight, by reusing the Scrambling Identity bit (16) while at the same time supporting different MU-MIMO dimensioning for the important cases of rank-1 and rank-2. This new DCI format can potentially support not only single cell downlink transmission but also some other Rel-10 functionalities, e.g. CoMP or relaying/HetNet.
摘要翻译：用于支持3GPP Rel-10功能的下行链路控制信息（DCI）扩展包括DCI格式2B的最小扩展。在一些实施例中，通过重新使用加扰标识位（16），同时支持秩-1和重要情况的不同的MU-MIMO尺寸标注，仅引入两个额外的比特（20）来信号等级达到八个 -2。这种新的DCI格式不仅可以支持单小区下行链路传输，还可以支持一些其他Rel-10功能，例如， CoMP或中继/ HetNet。

48. 发明申请

WO2011100857A1 METHOD AND APPARATUS FOR IMPROVING DEMODULATION PERFORMANCE USING DEMODULATION REFERENCE SIGNALS POWER BOOSTING 审中-公开
标题翻译：使用解调参考信号改进解调性能的方法和装置功率提升
公开(公告)号：WO2011100857A1
公开(公告)日：2011-08-25
申请号：PCT/CN2010/000214
申请日：2010-02-17
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HU, Yang , ASTELY, David , JÖNGREN, George , WANG, Jianfeng
发明人： HU, Yang , ASTELY, David , JÖNGREN, George , WANG, Jianfeng
IPC分类号： H04B7/26
CPC分类号： H04B7/0426 , H04L5/0023 , H04L5/0048 , H04W52/325 , H04W52/42
摘要： The present invention relates to demodulation reference signals (DM-RS) power boosting for user equipment (UE) specific reference signals without explicit dynamic control signalling indication and enables full transmission power utilization.
摘要翻译：本发明涉及无需明确的动态控制信令指示的用户设备（UE）特定参考信号的解调参考信号（DM-RS）功率提升，并实现全发射功率利用。

49. 发明申请

WO2011099908A8 METHOD AND ARRANGEMENT IN A TELECOMMUNICATION NETWORK WITH INTERCELL INTERFERENCE COORDINATION 审中-公开
公开(公告)号：WO2011099908A8
公开(公告)日：2011-08-18
申请号：PCT/SE2010/050678
申请日：2010-06-17
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ASTELY, David , FURUSKÄR, Anders , PARKVALL, Stefan
发明人： ASTELY, David , FURUSKÄR, Anders , PARKVALL, Stefan
IPC分类号： H04W72/08
摘要： Methods and arrangements in a telecommunication network for intercell interference coordination. The telecommunication network comprises a first base station, acting as serving base station for a mobile station, and a second base station. The method comprises determining that transmission interference to the mobile station is to be limited. The method also comprises triggering the mobile station to send a signal on a radio resource, which signal is to be received by the second base station, enabling the second base station to select a transmission parameter that limits interference for the mobile station.

50. 发明申请

WO2011088589A1 ANTENNA PORT MAPPING METHOD AND DEVICE FOR DEMODULATION REFERENCE SIGNALS 审中-公开
标题翻译：天线端口映射方法和解调参考信号的设备
公开(公告)号：WO2011088589A1
公开(公告)日：2011-07-28
申请号：PCT/CN2010/000084
申请日：2010-01-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HU, Yang , ASTELY, David , HAMMARWALL, David , JÖNGREN, George , SONG, Xinghua , WANG, Jianfeng
发明人： HU, Yang , ASTELY, David , HAMMARWALL, David , JÖNGREN, George , SONG, Xinghua , WANG, Jianfeng
IPC分类号： H04B7/06
CPC分类号： H04W28/0263 , H04J11/00 , H04L5/0026 , H04L5/0048 , H04W72/042 , H04W72/0453 , H04W72/06
摘要： An antenna port mapping method and device for demodulation reference signals. The method includes: determining a transmission rank for a downlink transmission to a user terminal; determining one or more reference signal antenna ports for the downlink transmission based on the transmission rank, wherein each port is defined by an group/code pair comprising a code division multiplexing group and orthogonal cover code; mapping reference signal antenna ports to group/code pairs for each transmission rank such that the code division multiplexing group and code orthogonal cover code are the same for a given antenna port for every transmission rank; and transmitting the downlink reference symbols over the reference signal antenna ports corresponding to the transmission rank.
摘要翻译：一种用于解调参考信号的天线端口映射方法和装置。该方法包括：确定向用户终端的下行链路传输的传输等级; 基于所述传输秩确定用于所述下行链路传输的一个或多个参考信号天线端口，其中每个端口由包括码分复用组和正交覆盖码的组/码对定义; 将参考信号天线端口映射到每个发送等级的组/码对，使得码分多路复用组和码正交覆盖码对于每个发送等级的给定天线端口是相同的; 以及通过对应于发送等级的参考信号天线端口发送下行链路参考符号。

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