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1. 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）。

2. 发明申请

WO2011077288A3 FLEXIBLE SUBFRAMES 审中-公开
公开(公告)号：WO2011077288A3
公开(公告)日：2011-06-30
申请号：PCT/IB2010/055346
申请日：2010-11-22
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , PARKVALL, Stefan , DAHLMAN, Erik , RAHMAN, Muhammad, Imadur , ASTELY, David , NYSTRÖM, Johan , SKÖLD, Johan , SELÉN, Yngve
发明人： PARKVALL, Stefan , DAHLMAN, Erik , RAHMAN, Muhammad, Imadur , ASTELY, David , NYSTRÖM, Johan , SKÖLD, Johan , SELÉN, Yngve
IPC分类号： H04B7/26
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. While the DL and UL subframes are preconfigured for each frame instance, the flexible subframes are dynamically allocated to be an uplink subframe in one instance of a frame and a downlink subframe in another instance of the frame.

3. 发明申请

WO2014007695A1 FORWARDING HARQ FEEDBACK CONSIDERING LATENCY OVER AVAILABLE CHANNELS 审中-公开
标题翻译：前瞻性的HARQ反馈考虑到可用信道的延迟
公开(公告)号：WO2014007695A1
公开(公告)日：2014-01-09
申请号：PCT/SE2012/050773
申请日：2012-07-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , DAHLMAN, Erik , PARKVALL, Stefan , ASTELY, David
发明人： DAHLMAN, Erik , PARKVALL, Stefan , ASTELY, David
IPC分类号： H04W72/04
CPC分类号： H04W72/08 , H04L47/2466 , H04W40/12 , H04W72/0406
摘要： It is presented a method performed in a first network node. The method comprises the steps of: receiving an uplink transmission from a mobile communication terminal; determining, based on content of the uplink transmission, information to be transmitted over a first communication channel when the content comprises control data intended for a second network node; transmitting the information over the first communication channel to the second network node when the information is to be transmitted over the first communication channel; and transmitting the information via a second communication channel, the second communication channel being physically separate from the first communication channel, when the information is not to be transmitted over the first communication channel. A corresponding network node is also presented.
摘要翻译：呈现在第一网络节点中执行的方法。该方法包括以下步骤：从移动通信终端接收上行链路传输; 当所述内容包括旨在用于第二网络节点的控制数据时，基于所述上行链路传输的内容，确定要在第一通信信道上发送的信息; 当要在第一通信信道上发送信息时，将第一通信信道上的信息发送到第二网络节点; 以及当所述信息不通过所述第一通信信道发送时，经由第二通信信道发送所述信息，所述第二通信信道与所述第一通信信道物理上分离。还提出了相应的网络节点。

4. 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。

5. 发明申请

WO2008127185A1 INFORMATION ON REFERENCE SIGNAL STRUCTURE FOR NEIGHBOURING CELL MEASUREMENTS 审中-公开
标题翻译：关于相邻单元测量的参考信号结构的信息
公开(公告)号：WO2008127185A1
公开(公告)日：2008-10-23
申请号：PCT/SE2008/050388
申请日：2008-04-03
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , PARKVALL, Stefan , ASTELY, David , DAHLMAN, Erik
发明人： PARKVALL, Stefan , ASTELY, David , DAHLMAN, Erik
IPC分类号： H04Q7/38
CPC分类号： H04L5/005 , H04L5/0023 , H04L5/0094 , H04L25/0206 , H04L27/2613 , H04W24/02 , H04W48/12 , H04W48/20 , H04W72/005 , H04W72/042 , H04W88/08
摘要： The present invention relates to cellular radio communication and in particular to providing information on neighbour cells to enable terminals to perform neighbour cell measurements. In the prior art the terminal attempts to make neighbour cell measurements in a reference signal structure that is the same in the neighbour cell as in the cell the terminal camps in. The present invention is based on the insight that the reference signal structure may differ between neighbouring cell for example in the situation of an MBSFN area that is restricted to a region of all cells of a radio network, or in the situation of TDD mode being applied there may be different regions with different allocation of sub-frames for transmission in the uplink and downlink directions. The present invention solves the problem by broadcast information in a cell indicative of the reference signal structure in neighbour cells.
摘要翻译：蜂窝无线电通信技术领域本发明涉及蜂窝无线电通信，并且特别涉及提供关于相邻小区的信息以使得终端能够执行相邻小区测量。在现有技术中，终端尝试在相邻小区中与终端驻留的小区中相同的参考信号结构中进行相邻小区测量。本发明基于以下认识：参考信号结构可以在例如在限于无线网络的所有小区的区域的MBSFN区域的情况下，或者在应用TDD模式的情况下，可能存在具有不同的子帧分配的区域，以便在上下行方向。本发明通过表示相邻小区中的参考信号结构的小区中的广播信息来解决该问题。

6. 发明申请

WO2012108804A1 REFERENCE SIGNAL RESOURCE ALLOCATION IN A MULTI-CARRIER SYSTEM 审中-公开
标题翻译：多载波系统中的参考信号资源分配
公开(公告)号：WO2012108804A1
公开(公告)日：2012-08-16
申请号：PCT/SE2011/051131
申请日：2011-09-21
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SORRENTINO, Stefano , BALDEMAIR, Robert , ASTELY, David
发明人： SORRENTINO, Stefano , BALDEMAIR, Robert , ASTELY, David
IPC分类号： H04L5/00
CPC分类号： H04L5/0048 , H04L5/0094
摘要： Downlink control information, DCI, messages used for signaling downlink resource grants are employed for triggering sounding reference signal transmission in the uplink. An index of the uplink component carrier that should be used for the transmission is derived from SIB-2 linking between the downlink component carrier targeted by the downlink DCI message and one of the uplink component carriers configured for the mobile station, when the linking is available. In some cases the downlink component carrier targeted by the downlink DCI message is identified by a carrier identification field in the downlink DCI. Variants of the disclosed techniques involve a default uplink component carrier, which is used in the event that the SIB-2 based allocation is not possible or desired. The default uplink component carrier can be statically defined or semi- statically signaled by Radio Resource Control, RRC, signaling.
摘要翻译：下行链路控制信息，DCI，用于信令下行链路资源许可的消息用于触发上行链路中的探测参考信号传输。应该用于传输的上行链路分量载波的索引是从链路可用时从下行链路DCI消息所针对的下行链路分量载波与为移动台配置的上行链路分量载波之一之间的SIB-2链接导出的。在某些情况下，由下行链路DCI消息所针对的下行分量载波由下行链路DCI中的载波标识字段来识别。所公开技术的变型涉及默认上行链路分量载波，其在基于SIB-2的分配不可能或不期望的情况下使用。默认的上行分量载波可以由无线电资源控制（RRC）信令静态地定义或半静态地发出信号。

7. 发明申请

WO2008155380A2 METHOD AND APPARATUS FOR 3G LTE FDD AND TDD DETECTION USING REFERENCE SIGNAL CORRELATION 审中-公开
标题翻译：使用参考信号相关的3G LTE FDD和TDD检测的方法和装置
公开(公告)号：WO2008155380A2
公开(公告)日：2008-12-24
申请号：PCT/EP2008/057779
申请日：2008-06-19
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , LINDOFF, Bengt , ASTELY, David , BALDEMAIR, Robert
发明人： LINDOFF, Bengt , ASTELY, David , BALDEMAIR, Robert
IPC分类号： H04L5/14 , H04B7/26
CPC分类号： H04L5/1469 , H04J11/0069 , H04L5/0007 , H04L5/0048 , H04L27/2607 , H04L27/2647
摘要： A method and apparatus for use in a wireless communication system to detect frequency division duplex (FDD) or time division duplex (TDD) after the radio timing and cell group ID have been determined from the S-SyS during a cell search, by correlating reference symbols (RSs) and detecting whether the RSs are on resource elements corresponding to FDD or TDD. By correlating the known RS, which is known after the cell ID is detected, to the assumed RS positions for FDD or TDD, the duplex form is detected.
摘要翻译：在无线电定时和小区组ID已经在小区搜索期间从S-SyS确定的无线通信系统中用于检测频分双工（FDD）或时分双工（TDD）的方法和装置，通过相关参考符号（RS），并检测RS是否在对应于FDD或TDD的资源元素上。通过将在检测到小区ID之后已知的已知RS相关于FDD或TDD的假定RS位置，检测双工形式。

8. 发明申请

WO2009095369A1 DETECTION OF TIME DIVISION DUPLEX DOWNLINK / UPLINK CONFIGURATION 审中-公开
标题翻译：检测时间双工下拉/上行链路配置
公开(公告)号：WO2009095369A1
公开(公告)日：2009-08-06
申请号：PCT/EP2009/050834
申请日：2009-01-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , LINDOFF, Bengt , KAZMI, Muhammad , NILSSON, Johan , ASTELY, David
发明人： LINDOFF, Bengt , KAZMI, Muhammad , NILSSON, Johan , ASTELY, David
IPC分类号： H04B17/00 , H04W36/00
CPC分类号： H04B17/318 , H04B17/15 , H04B17/327 , H04B17/382 , H04J11/0093 , H04L25/022 , H04L25/0224 , H04L27/2647 , H04W36/0083 , H04W36/30 , H04W48/16
摘要： A user equipment (UE) in a cellular telecommunications system is able to detect the uplink/downlink configuration of a detected neighboring cell by receiving a signal from the neighboring cell. A characteristic of the received signal is detected and used as an indicator in a blind detection process to identify one or more downlink slots in the received signal. Known pilot signals in the identified one or more downlink slots can then be used to obtain a signal power measurement of the received signal. The blind detection process is also capable of detecting whether a slot of a neighboring cell's signal is a downlink unicast slot or a Multicast-Broadcast Single Frequency Network slot.
摘要翻译：蜂窝电信系统中的用户设备（UE）能够通过接收来自相邻小区的信号来检测检测到的相邻小区的上行链路/下行链路配置。在盲检测处理中检测接收信号的特性并将其用作指示符，以识别接收信号中的一个或多个下行链路时隙。然后可以使用所识别的一个或多个下行链路时隙中的已知导频信号来获得接收信号的信号功率测量。盲检测处理还能够检测相邻小区的信号的时隙是否是下行链路单播时隙或多播广播单频网络时隙。

9. 发明申请

WO2011002404A3 METHOD AND DEVICE FOR COMPONENT CARRIER ACTIVATION AND RECONFIGURATION IN A MOBILE USER EQUIPMENT 审中-公开
公开(公告)号：WO2011002404A3
公开(公告)日：2011-01-06
申请号：PCT/SE2010/050743
申请日：2010-06-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , BALDEMAIR, Robert , JADING, Ylva , DAHLMAN, Erik , ASTELY, David
发明人： BALDEMAIR, Robert , JADING, Ylva , DAHLMAN, Erik , ASTELY, David
IPC分类号： H04L5/00 , H04W72/12 , H04W74/08 , H04W74/00
摘要： The present invention relates to a method and arrangement in a user equipment unit for activation of downlink component carriers. Even though configured to monitor multiple component carriers,a user equipment does not start to monitor them immediately but only one, or very few, carriers. Only if it decodes a DL assignment it will start to monitor multiple component carriers. After one, or possibly multiple, subframes where the UE is not scheduled anymore it falls back to its original state, i.e. it only monitors one (or very few) component carriers.

10. 发明申请

WO2009075630A1 IMPROVED SCHEDULING IN A CELLULAR SYSTEM 审中-公开
标题翻译：改进细胞系统调度
公开(公告)号：WO2009075630A1
公开(公告)日：2009-06-18
申请号：PCT/SE2008/050524
申请日：2008-05-07
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , PARKVALL, Stefan , ASTELY, David
发明人： PARKVALL, Stefan , ASTELY, David
IPC分类号： H04W72/14 , H04W72/12
CPC分类号： H04L5/0094 , H04L1/1607 , H04W72/0446 , H04W72/1289
摘要： In a cellular system (100), transmissions are made (410) in subframes (310) which comprise subelements. The method is used for scheduling (415) first and second channels in a subframe, and comprises: • dividing (420) the transmission resources for the first channel into a first set of resource groups, • assigning (425) the resource groups of the first set to subelements in the subframe (310) in a predetermined fashion, • assigning (430) a symbol value to all subelements (210) in the subframe (310) which have not been assigned a resource groups of the first set, • dividing (435) the transmission resources for the second channel into a second set of resource groups, • assigning (440) the resource groups of the second set to subelements in the subframe by means of said symbol values.
摘要翻译：在蜂窝系统（100）中，在包括子元件的子帧（310）中进行（410）传输。该方法用于在子帧中调度（415）第一和第二信道，并且包括：将第一信道的传输资源划分（420）到第一组资源组中，分配（425）第一组的资源组以预定的方式对子帧（310）中的子元素分配（430）符号值到尚未被分配了第一组的资源组的子帧（310）中的所有子元素（210）（435）用于所述第二信道的传输资源转换成第二组资源组，通过所述符号值将所述第二集合的资源组分配（440）到所述子帧中的子元素。

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