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1. 发明申请

WO2015060760A1 RECEIVER CHANNEL RESERVATION 审中-公开
标题翻译：接收频道预留
公开(公告)号：WO2015060760A1
公开(公告)日：2015-04-30
申请号：PCT/SE2013/051252
申请日：2013-10-25
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： KRONANDER, Jonas , BALDEMAIR, Robert , HUI, Dennis , BALACHANDRAN, Kumar
IPC分类号： H04W74/08
CPC分类号： H04W74/08 , H04W16/02 , H04W28/26 , H04W74/002 , H04W74/0816
摘要： The present disclosure proposes a solution that increases the efficiency of the MAC and use of the spectrum by indicating in a receiver channel reservation, RCR, signal that the channel is reserved only at the receiver side of a link, during the planned reception by the receiver. The disclosure relates to a method, performed in a first node 10a in a wireless communication system, of reserving a shared media for signal reception, the method comprising defining, parts of the shared media to reserve for signal reception in the first node 10a, configuring a receiver channel reservation signal 30 to indicate the defined parts and transmitting the receiver channel reservation signal 30 to reserve the shared media. The disclosure also relates to a method in a node receiving a receiver channel reservation, RCR, signal and to the corresponding network nodes.
摘要翻译：本公开提出了一种通过在接收机计划的接收期间通过在接收机信道预约（RCR）中指示信道仅在链路的接收机侧保留的信号来提高MAC的效率和使用频谱的解决方案。本公开涉及一种在无线通信系统中的第一节点10a中执行的方法，用于保留用于信号接收的共享媒体，所述方法包括定义在第一节点10a中预留用于信号接收的共享媒体的部分，配置接收机信道预留信号30，用于指示定义的部分，并发送接收机信道预约信号30以保留共享介质。本公开还涉及在接收接收机信道预留，RCR，信号和对应的网络节点的节点中的方法。

2. 发明申请

WO2015060759A1 EFFICIENT MEDIUM ACCESS WITH DIRECTION AWARENESS 审中-公开
标题翻译：有效的中间访问与方向意识
公开(公告)号：WO2015060759A1
公开(公告)日：2015-04-30
申请号：PCT/SE2013/051251
申请日：2013-10-25
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： HUI, Dennis , BALDEMAIR, Robert , KRONANDER, Jonas , BALACHANDRAN, Kumar
IPC分类号： H04W74/08
CPC分类号： H04L25/0228 , H04L5/0048 , H04W72/046 , H04W74/0808
摘要： The disclosure relates to future radio access systems and more specifically to methods for media access in future radio access systems. The present disclosure presents a method performed in a first node 10c in a wireless communication system, of accessing a shared channel for transmission from the first node to at least one second node 20d. The method comprises the step of receiving, from a third node a pilot signal announcing reception in the third node 10a, wherein the pilot signal comprises information enabling estimation of a channel response from the first node 10c to the third node 10a. The method further comprises estimating, using the pilot signal, a channel response from the first node to the third node and predicting, based on the estimated channel response, an interference level at the receiver of the third node of a directive transmission from the first node to the second node. The method finally comprises accessing the shared channel based on the predicted interference level. The presented method mitigates the problem of hidden nodes for directive transmissions. The disclosure relates to methods for reserving and accessing a shared media in radio access systems, as well as to wireless network nodes.
摘要翻译：本公开涉及未来的无线电接入系统，更具体地涉及在将来的无线电接入系统中用于媒体接入的方法。本公开提供了在无线通信系统中的第一节点10c中执行的访问用于从第一节点传输到至少一个第二节点20d的共享信道的方法。该方法包括从第三节点接收通知第三节点10a中的接收的导频信号的步骤，其中导频信号包括能够估计从第一节点10c到第三节点10a的信道响应的信息。该方法还包括使用导频信号来估计从第一节点到第三节点的信道响应，并且基于所估计的信道响应来预测来自第一节点的定向传输的第三节点的接收机处的干扰电平到第二个节点。该方法最终包括基于预测的干扰电平来访问共享信道。所提出的方法减轻了用于指令传输的隐藏节点的问题。本公开涉及在无线电接入系统以及无线网络节点中预留和访问共享介质的方法。

3. 发明申请

WO2014081364A1 ROUTE DETERMINATION IN A MULTI-HOP NETWORK USING MULTIPLE ROUTING METRICS 审中-公开
标题翻译：使用多路由度量的多业务网络中的路由确定
公开(公告)号：WO2014081364A1
公开(公告)日：2014-05-30
申请号：PCT/SE2012/051302
申请日：2012-11-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： AXNÄS, Johan , TULLBERG, Hugo , BALDEMAIR, Robert , BALACHANDRAN, Kumar , HUI, Dennis
IPC分类号： H04L12/725 , H04W40/02
CPC分类号： H04L45/124 , H04L43/045 , H04W40/02 , Y02D70/00 , Y02D70/22 , Y02D70/30
摘要： The proposed technology provides a computationally efficient way to find suitable routes under consideration of multiple metrics. The considered multi-hop network is represented by a connected graph having nodes and links interconnecting the nodes. The method comprises the step (S1) of obtaining a value of a reference route between a source node and a destination node in the connected graph according to a first routing metric. The method further comprises the step (S2) of modifying, based on the value of the reference route according to the first routing metric, the connected graph by modifying link cost, with respect to a second routing metric, of at least one link in the connected graph. The method also comprises the step (S3) of determining at least part of a route between the source node and the destination node in the modified connected graph, based on the modified link cost, according to the second routing metric.
摘要翻译：所提出的技术提供了一种计算上有效的方式来在多个度量下考虑合适的路线。所考虑的多跳网络由具有互连节点的节点和链路的连接图表示。该方法包括根据第一路由度量获得连接图中的源节点和目的地节点之间的参考路径的值的步骤（S1）。该方法还包括步骤（S2），根据第一路由度量，基于参考路线的值修改连接图，通过相对于第二路由度量链接修改链路成本连接图。该方法还包括根据第二路由度量，基于修改的链路成本来确定修改的连接图中的源节点和目的地节点之间的路由的至少一部分的步骤（S3）。

4. 发明申请

WO2014049542A2 METRIC COMPUTATION FOR INTERFERENCE-AWARE ROUTING 审中-公开
标题翻译：用于干扰感知路由的度量计算
公开(公告)号：WO2014049542A2
公开(公告)日：2014-04-03
申请号：PCT/IB2013/058863
申请日：2013-09-25
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： HUI, Dennis , BALACHANDRAN, Kumar , BALDEMAIR, Robert , AXNÄS, Johan , TULLBERG, Hugo
IPC分类号： H04W40/16
CPC分类号： H04W40/16 , H04L45/124 , Y02D70/1262 , Y02D70/142 , Y02D70/22 , Y02D70/34
摘要： Systems and methods for computing and/or utilizing mutual information based link metrics for a link in a wireless mesh network are disclosed. In one embodiment, one or more mutual information values are computed for a link between a transmitter of a first network node and a receiver of a second network node in a wireless mesh network. Each of the one or more mutual information values is computed for a different hypothesized transmission mode for the link. One or more link metrics for the link are computed as a function of the mutual information values, where each link metric is computed based on a different one of the one or more mutual information values. In this manner, a link metric is computed for each of the one or more hypothesized transmission modes for the link. At least one of the link metrics are then provided to a routing update module.
摘要翻译：公开了用于为无线网状网络中的链路计算和/或利用基于互信息的链路量度的系统和方法。在一个实施例中，针对无线网状网络中的第一网络节点的发射机与第二网络节点的接收机之间的链路计算一个或多个互信息值。针对链路的不同假设传输模式计算一个或多个互信息值中的每一个。链路的一个或多个链路度量被计算为互信息值的函数，其中每个链路度量基于不同的一个或多个互信息值来计算。以这种方式，为链路的一个或多个假设传输模式中的每一个计算链路度量。然后至少有一个链接指标被提供给路由更新模块。

5. 发明申请

WO2014016772A1 DFTS-OFDM USING SAMPLING RATE CONVERSION 审中-公开
标题翻译： DFTS-OFDM使用采样速率转换
公开(公告)号：WO2014016772A1
公开(公告)日：2014-01-30
申请号：PCT/IB2013/056040
申请日：2013-07-23
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： PARK, Chester , HUI, Dennis
IPC分类号： H04L27/26
CPC分类号： H04L27/2627 , H04L27/2631
摘要： Methods and devices are provided in which the DFT-SODFM signal is generated through Px upsampling of QAM symbols s[m], frequency offsetting the up sampled QAM symbols, digital filtering with circular convolution with rotated filter coefficients and Qx down sampling. Variants are possible exploiting linear convolution.
摘要翻译：提供了方法和装置，其中通过QAM符号s [m]的Px上采样生成DFT-SODFM信号，对上采样QAM符号进行频偏补偿，利用旋转滤波器系数的循环卷积和Qx下采样进行数字滤波。变体可能利用线性卷积。

6. 发明申请

WO2013151476A2 METHODS AND DEVICES FOR TRANSMISSION OF SIGNALS IN A TELECOMMUNICATION SYSTEM 审中-公开
标题翻译：用于在电信系统中传输信号的方法和设备
公开(公告)号：WO2013151476A2
公开(公告)日：2013-10-10
申请号：PCT/SE2013/050136
申请日：2013-02-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： LOPEZ, Miguel , HUI, Dennis
IPC分类号： H04L27/36
CPC分类号： H04J3/02 , H04L23/02 , H04L25/0226 , H04L27/2613 , H04L27/2643
摘要： Methods and devices for generating training symbols to be transmitted in a radio network are provided for a radio system where multiple users are sharing the same transmission slot. The method involves forming a sequence of training symbols by repeating an initial block of training symbols and for each user rotating the repeated block by a user specific rotation angle. A rotated block is periodically extended in both ends.
摘要翻译：提供用于生成要在无线电网络中传送的训练符号的方法和装置，用于其中多个用户共享相同传输时隙的无线电系统。该方法包括通过重复训练符号的初始块来形成训练符号序列，并且每个用户通过用户特定的旋转角旋转重复的块。旋转的块在两端周期性地延伸。

7. 发明申请

WO2012123867A1 JOINT MANAGEMENT OF RADIO AND TRANSPORT RESOURCES 审中-公开
标题翻译：无线电和运输资源的联合管理
公开(公告)号：WO2012123867A1
公开(公告)日：2012-09-20
申请号：PCT/IB2012/051101
申请日：2012-03-09
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , GUEY, Jiann-Ching , WONG, Shing-Wa , CHENG, Jung-Fu , HUI, Dennis
发明人： GUEY, Jiann-Ching , WONG, Shing-Wa , CHENG, Jung-Fu , HUI, Dennis
IPC分类号： H04W28/16
CPC分类号： H04W28/16 , H04W72/04 , H04W92/12
摘要： A system for managing radio access resources includes a joint radio resource management/transport resource management unit configured to communicate with a plurality of radio units over a transport network, to jointly allocate radio resources at the radio unit and transport resources on the transport network in response to requests from wireless terminals requesting access to radio resources from the radio units, to send a radio resource allocation schedule to the plurality of radio units that defines radio resource allocations for the wireless terminals, and to generate a transport resource allocation schedule that defines transport resource allocations for the wireless terminals. The system further includes a transport resource controller configured to receive the transport resource allocation schedule and to map user data to physical transport resources on the transport network in response to the transport resource allocation schedule.
摘要翻译：用于管理无线电接入资源的系统包括：联合无线电资源管理/传输资源管理单元，被配置为通过传输网络与多个无线电单元进行通信，以在无线电单元处共同分配无线电资源并响应于传输网络上的资源传输向来自无线单元请求接入无线电资源的无线终端的请求向定义无线终端的无线资源分配的多个无线单元发送无线资源分配调度，并生成定义传输资源的传输资源分配调度为无线终端分配。该系统还包括传输资源控制器，其被配置为接收传输资源分配调度，并且响应于传输资源分配调度，将用户数据映射到传输网络上的物理传输资源。

8. 发明申请

WO2011034485A9 A METHOD AND APPARATUS FOR REDUCING MULTI-USER-INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2011034485A9
公开(公告)日：2011-03-24
申请号：PCT/SE2010/050937
申请日：2010-09-02
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： MOÁCO GUERREIRO, Igor , CASIMIRO CAVALCANTE, Charles , CAVALCANTE MOREIRA, Darlan , HUI, Dennis , DA SILVA, Icaro, L., J.
IPC分类号： H04W72/12
摘要： According to the teachings presented herein, each base station (14) in a group of base stations (14) is linked to an associated terminal (18) as a receiver-transmitter pair. These receiver-transmitter pairs reuse channelization resources, such that each terminal (18) represents a source of other-cell interference (also referred to as multi-user interference or MUI) for other terminals (18) in neighboring cells that are reusing all or some of the same channelization resources. Accordingly, the base stations (14) implement a gaming-based algorithm to mitigate MUI for the multiple-input-multiple-output, MIMO, uplink signals received from their associated terminals (18). More particularly, each base station (14) functions as a player in a game, in which the allowed gaming action is the selection of the precoding matrix to be used for MIMO uplink transmissions to the base station (14) from an associated terminal (18).

9. 发明申请

WO2010082884A1 METHODS AND ARRANGEMENTS FOR FEEDING BACK CHANNEL STATE INFORMATION 审中-公开
标题翻译：提供反向通道状态信息的方法和安排
公开(公告)号：WO2010082884A1
公开(公告)日：2010-07-22
申请号：PCT/SE2009/050047
申请日：2009-01-19
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , GAN, Jiansong , HUI, Dennis
发明人： GAN, Jiansong , HUI, Dennis
IPC分类号： H04L1/00 , H04L25/03
CPC分类号： H04L27/2647 , H04B7/024 , H04B7/0417 , H04B7/0626 , H04L1/0026 , H04L25/03343 , H04L2025/03426
摘要： A method and an arrangement (600) in a user equipment (140) for quantizing channel state information in a coordinated multi-point transmission radio communication system (100). A dominant path is between the user equipment (140) and a first network node (110) and a non-dominant path is between the user equipment (140) and a second network node (120, 130). A ratio of the non-dominant path channel response, such as fast fading, to the dominant path channel response is quantized by using a codebook disclosed herein. A method and an arrangement (400) for generating a codebook by applying a log squared error distortion measure in an iterative algorithm. A method and an arrangement (900) in a user equipment (140) for allocating available bits among at least two quantized ratios in a channel state information feedback procedure. The bits are allocated by means of selecting (270) at least one codebook based on statistic properties, such as path gain, of the non-dominant path.
摘要翻译：一种用于在协调的多点传输无线电通信系统（100）中量化信道状态信息的用户设备（140）中的方法和装置（600）。主要路径在用户设备（140）和第一网络节点（110）之间，并且非主导路径在用户设备（140）和第二网络节点（120,130）之间。非优势路径信道响应（例如快速衰落）与主路径信道响应的比率通过使用本文公开的码本来量化。一种用于通过在迭代算法中应用对数平方误差失真度量来生成码本的方法和装置（400）。一种在用户设备（140）中用于在信道状态信息反馈过程中在至少两个量化比率中分配可用比特的方法和装置（900）。通过基于非主导路径的统计特性（例如路径增益）来选择（270）至少一个码本来分配比特。

10. 发明申请

WO2009031966A2 METHOD AND APPARATUS FOR LINEARLY PRECODING DOWNLINK TRANSMISSIONS TO REDUCE TEMPORAL VARIATIONS IN INTERFERENCE 审中-公开
标题翻译：用于线性预测下行链路传输以减少干扰中的时态变化的方法和装置
公开(公告)号：WO2009031966A2
公开(公告)日：2009-03-12
申请号：PCT/SE2008/050936
申请日：2008-08-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： ZANGI, Kambiz , KRASNY, Leonid , HUI, Dennis
CPC分类号： H04L5/0082 , H04L1/0015 , H04L5/0023 , H04L5/0058 , H04L25/03343 , H04W4/08 , H04W28/18 , H04W72/00
摘要： According to one or more method and apparatus embodiments taught herein, network base stations (10) reduce temporal variations in the interference perceived by mobile stations (12) operating within the network (60) by slowing down the rate at which they change or otherwise update the linear precoding settings applied to their transmitted Orthogonal Frequency Division Multiplex (OFDM) signals in comparison to the rate at which the base stations (10) perform link adaptation. That is, the precoding-related component of measured interference (e.g., other-cell interference) at the mobile stations (12) is made quasi-stationary with respect to channel quality reporting and link adaptation intervals by fixing the precoding settings used by each base station (10) over time intervals substantially longer than the channel reporting/link adaptation intervals.
摘要翻译：根据本文教导的一个或多个方法和装置实施例，网络基站（10）通过减慢其改变或以其他方式更新的速率来减少在网络（60）内操作的移动站（12）感知到的干扰的时间变化与基站（10）进行链路自适应的速率相比，应用于其发射的正交频分复用（OFDM）信号的线性预编码设置。也就是说，通过固定每个基站使用的预编码设置，相对于信道质量报告和链路自适应间隔，在移动站（12）处的测量干扰（例如其他小区干扰）的预编码相关分量被准备为准静止站（10）的时间间隔大大长于信道报告/链路自适应间隔。

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