公开(公告)号：US08176376B2

公开(公告)日：2012-05-08

申请号：US11905173

申请日：2007-09-27

申请人： Jung-fu Cheng ,  Bo Göransson ,  Stefan Parkvall ,  Yi-Pin Eric Wang

发明人： Jung-fu Cheng ,  Bo Göransson ,  Stefan Parkvall ,  Yi-Pin Eric Wang

IPC分类号： H04L1/18 ,  H03M13/00

CPC分类号： H04L1/1607 ,  H04L1/004 ,  H04L1/0073 ,  H04L1/1812 ,  H04L2001/125

摘要： Error protection based on a nonlinear code set may be used in a multiple input multiple output (MIMO) radio communications system. A decoder decodes received MIMO data streams and generates an automatic repeat request (ARQ) message for data units received for the MIMO data streams for each transmission time interval. An encoder codes the ARQ message using a code word from a nonlinear code set. At the data transmitter, which transmits one or more data units in transmission time intervals from two or more MIMO data streams, the ARQ message associated with the transmitted data units is decoded using a code word from the nonlinear code set.

摘要翻译： 可以在多输入多输出（MIMO）无线电通信系统中使用基于非线性码集的错误保护。 解码器解码所接收的MIMO数据流，并为每个传输时间间隔为MIMO数据流接收的数据单元生成自动重复请求（ARQ）消息。 编码器使用来自非线性码集的码字对ARQ消息进行编码。 在从两个或多个MIMO数据流以传输时间间隔发送一个或多个数据单元的数据发射机处，使用来自非线性码集的码字来解码与发送的数据单元相关联的ARQ消息。

公开(公告)号：US20100199141A1

公开(公告)日：2010-08-05

申请号：US12663459

申请日：2008-05-09

申请人： Stefan Parkvall ,  Jung-Fu Cheng

发明人： Stefan Parkvall ,  Jung-Fu Cheng

IPC分类号： H04L1/18 ,  H03M13/00 ,  G06F11/00 ,  G06F11/16

CPC分类号： H04L1/1822 ,  H04L1/1819 ,  H04L1/1825 ,  H04L1/1835 ,  H04L1/1845

摘要： A first transceiver that supports hybrid Automatic Repeat Request (hybrid ARQ) functionality is operated. Initially, it is operated to transmit data blocks having a nominal maximum data block size, M0. In response to detecting that a second transceiver does not have sufficient soft buffer memory space to store data blocks associated with an anticipated number of active hybrid ARQ processes, the transceiver is operated to transmit data blocks having a reduced data block size, M′. The anticipated number of active hybrid ARQ processes can be, for example, higher than a nominal number of active hybrid ARQ processes.

摘要翻译： 支持混合自动重传请求（Hybrid ARQ）功能的第一个收发器。 最初，它被操作以发送具有标称最大数据块大小M0的数据块。 响应于检测到第二收发器不具有足够的软缓冲存储器空间来存储与预期数量的主动混合ARQ过程相关联的数据块，所述收发器被操作以发送具有减小的数据块大小M'的数据块。 主动混合ARQ过程的预期数量可以例如高于活动混合ARQ过程的标称数量。

公开(公告)号：US09137075B2

公开(公告)日：2015-09-15

申请号：US11943440

申请日：2007-11-20

申请人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

发明人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

IPC分类号： H04J11/00 ,  H04L7/00 ,  H04L27/26 ,  H04L27/00

CPC分类号： H04L27/2613 ,  H04L27/0008 ,  H04L27/0012 ,  H04L27/2626 ,  H04L27/2655 ,  H04L27/2666

摘要： A cellular communications system that utilizes OFDM in its radio interface is capable of utilizing either a first subcarrier spacing or a second subcarrier spacing. Which of these is presently in use is indicated by generating a first type of synchronization signal in response to the first subcarrier spacing presently being in use, and generating a second type of synchronization signal in response to the second subcarrier spacing presently being in use. Whichever of the first type of synchronization signal and the second type of synchronization signal was generated is transmitted. To distinguish between the first and second types of synchronization signals, a time domain representation of the second type of synchronization signal includes a plurality of instances of the first type of synchronization signal.

摘要翻译： 在其无线电接口中利用OFDM的蜂窝通信系统能够利用第一子载波间隔或第二子载波间隔。 当前正在使用中的哪一个当前正在使用时响应于当前正在使用的第一子载波间隔产生第一类型的同步信号，并且响应于当前正在使用的第二子载波间隔而产生第二类型的同步信号来指示。 发送第一类型的同步信号和第二类型的同步信号中的任何一个。 为了区分第一类型和第二类型的同步信号，第二类型的同步信号的时域表示包括第一类型的同步信号的多个实例。

公开(公告)号：US09036571B2

公开(公告)日：2015-05-19

申请号：US13319267

申请日：2009-05-08

申请人： Pål Frenger ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

发明人： Pål Frenger ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

IPC分类号： H04W4/00 ,  H04W88/06 ,  H04L5/00 ,  H04W76/04

CPC分类号： H04W88/06 ,  H04L5/0037 ,  H04W76/28

摘要： A method in a radio network node for dynamic carrier mode switching is provided. The radio network node is comprised in a radio communications system. The radio network node is configured to operate in a legacy mode and is further configured to operate in a non legacy mode. At least one carrier is operated so that it switches (602) from non legacy mode to legacy mode. When operating the carrier in the legacy mode, the radio network node signals (603) with a user equipment. The user equipment operates in legacy mode, but can not operate in non legacy mode. The radio network node then operates the at least one carrier so that it switches (604) from legacy mode back to non legacy mode.

摘要翻译： 提供了一种用于动态载波模式切换的无线电网络节点中的方法。 无线电网络节点包括在无线电通信系统中。 无线电网络节点被配置为以传统模式操作，并且还被配置为以非传统模式操作。 操作至少一个载波，使得它将（602）从非传统模式切换到传统模式。 当在传统模式下操作载波时，无线电网络节点用用户设备发信号（603）。 用户设备以传统模式运行，但不能在非传统模式下运行。 无线电网络节点然后操作至少一个载波，使得它将（604）从传统模式切换回非传统模式。

公开(公告)号：US20120020315A1

公开(公告)日：2012-01-26

申请号：US13251639

申请日：2011-10-03

申请人： David Astely ,  Stefan Parkvall ,  Robert Baldemair

发明人： David Astely ,  Stefan Parkvall ,  Robert Baldemair

IPC分类号： H04W72/04

CPC分类号： H04L1/1829 ,  H04L1/1635 ,  H04L1/1896

摘要： The invention relates to a method in a first communication device of receiving control information over a radio channel from a second communication device. The first communication device receives a subframe over the radio channel, and determines whether the subframe is a downlink subframe with downlink assignment intended for the first communication device by reading data in the subframe. That being the case, the first communication device decodes data within the subframe, and determines whether any data packet being sent from the second communication device before the subframe has been missed by analysing an indicator associated to the subframe in the data. The indicator provides knowledge about previous downlink subframes with downlink assignment intended for the first communication device.

摘要翻译： 本发明涉及一种在第一通信设备中通过无线电信道从第二通信设备接收控制信息的方法。 第一通信设备通过无线电信道接收子帧，并且通过读取子帧中的数据来确定子帧是否是具有针对第一通信设备的下行链路分配的下行链路子帧。 在这种情况下，第一通信设备对子帧内的数据进行解码，并且通过分析与数据中的子帧相关联的指示符来确定在子帧已经被错过之前是否从第二通信设备发送的任何数据分组。 该指示符提供关于先前的下行链路子帧的知识，其具有针对第一通信设备的下行链路分配。

公开(公告)号：US20110244850A1

公开(公告)日：2011-10-06

申请号：US13158895

申请日：2011-06-13

申请人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

发明人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

IPC分类号： H04W4/00

CPC分类号： H04L27/2655 ,  H04J11/0069 ,  H04L27/2602 ,  H04L27/2675

摘要： For wireless networks that transmit synchronization signals allowing user equipment to synchronize to cells within the network and transmit reference signals allowing user equipment to determine cell identities, a method and apparatus taught herein advantageously link the synchronization signal sequences to the reference signal sequences according to a defined mapping. The linking simplifies the cell search process by allowing user equipment to determine cell identities based on mapping detected synchronization signal sequences to the corresponding reference signal or to the corresponding subset of reference signals in embodiments where there are more reference signal sequences than synchronization signal sequences. In at least one embodiment, the network is a 3G LTE network and at least the Primary Synchronization Signal (P-SyS) sequences are linked to the Downlink (DL) reference symbol sequences according to a defined mapping, thereby allowing to user equipment to determine cell identities from detected P-SyS sequences.

摘要翻译： 对于发送允许用户设备与网络中的小区同步并发送允许用户设备确定小区标识的参考信号的同步信号的无线网络，本文教导的方法和装置有利地将同步信号序列链接到参考信号序列， 映射。 该链接通过允许用户设备基于将检测到的同步信号序列映射到对应的参考信号或者在具有比同步信号序列更多的参考信号序列的参考信号序列的相应子集中来确定小区标识来简化小区搜索过程。 在至少一个实施例中，网络是3G LTE网络，并且至少主同步信号（P-SyS）序列根据定义的映射链接到下行链路（DL）参考符号序列，从而允许用户设备确定 来自检测到的P-SyS序列的细胞鉴定。

公开(公告)号：US20090225707A1

公开(公告)日：2009-09-10

申请号：US12162522

申请日：2007-01-24

申请人： Robert Baldemair ,  Jacobus Cornelis Haartsen ,  Stefan Parkvall ,  Gunnar Peters ,  Henrik Sahlin

发明人： Robert Baldemair ,  Jacobus Cornelis Haartsen ,  Stefan Parkvall ,  Gunnar Peters ,  Henrik Sahlin

IPC分类号： H04W74/08

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。

公开(公告)号：US08743721B2

公开(公告)日：2014-06-03

申请号：US13251639

申请日：2011-10-03

申请人： David Astely ,  Stefan Parkvall ,  Robert Baldemair

发明人： David Astely ,  Stefan Parkvall ,  Robert Baldemair

IPC分类号： H04L12/26 ,  H04W72/04 ,  H04J3/00

CPC分类号： H04L1/1829 ,  H04L1/1635 ,  H04L1/1896

摘要： The invention relates to a method in a first communication device of receiving control information over a radio channel from a second communication device. The first communication device receives a subframe over the radio channel, and determines whether the subframe is a downlink subframe with downlink assignment intended for the first communication device by reading data in the subframe. That being the case, the first communication device decodes data within the subframe, and determines whether any data packet being sent from the second communication device before the subframe has been missed by analyzing an indicator associated to the subframe in the data. The indicator provides knowledge about previous downlink subframes with downlink assignment intended for the first communication device.

摘要翻译： 本发明涉及一种在第一通信设备中通过无线电信道从第二通信设备接收控制信息的方法。 第一通信设备通过无线电信道接收子帧，并且通过读取子帧中的数据来确定子帧是否是具有针对第一通信设备的下行链路分配的下行链路子帧。 在这种情况下，第一通信设备对子帧内的数据进行解码，并且通过分析与数据中的子帧相关联的指示符来确定在子帧已经被错过之前是否从第二通信设备发送的任何数据分组。 该指示符提供关于先前的下行链路子帧的知识，其具有针对第一通信设备的下行链路分配。

公开(公告)号：US20140079031A1

公开(公告)日：2014-03-20

申请号：US13700590

申请日：2012-10-12

申请人： Stefan Parkvall ,  Erik Dahlman ,  Bengt Lindoff ,  Robert Baldemair

发明人： Stefan Parkvall ,  Erik Dahlman ,  Bengt Lindoff ,  Robert Baldemair

IPC分类号： H04L5/00

CPC分类号： H04L5/0058 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0055 ,  H04W72/04 ,  H04W76/15

摘要： The invention relates to a method in a wireless device for mapping a logical channel to one of a first and a second link. The first link is maintained to a first radio network node and the second link is maintained to a second radio network node. The method comprises obtaining (910) information indicating to which of the first and the second links one or more of at least one logical channel is mapped. The method also comprises selecting (920) a logical channel among the at least one logical channel, and mapping (930) the selected logical channel to one of the first and the second links based on the obtained information. The invention also relates to a corresponding method in the first radio network node.

摘要翻译： 本发明涉及一种用于将逻辑信道映射到第一和第二链路之一的无线设备中的方法。 第一链路被维护到第一无线电网络节点，并且第二链路被维护到第二无线电网络节点。 所述方法包括：获取指示所述第一和第二链路中的哪一个至少一个逻辑信道被映射的信息（910）。 该方法还包括在至少一个逻辑信道中选择（920）逻辑信道，并且基于获得的信息将所选择的逻辑信道（930）映射（930）到第一和第二链路中的一个。 本发明还涉及第一无线电网络节点中的相应方法。

公开(公告)号：US08605709B2

公开(公告)日：2013-12-10

申请号：US12896304

申请日：2010-10-01

申请人： Robert Baldemair ,  Magnus Larsson ,  Stefan Parkvall

发明人： Robert Baldemair ,  Magnus Larsson ,  Stefan Parkvall

IPC分类号： H04J3/06

CPC分类号： H04W56/0015 ,  Y02D70/1242 ,  Y02D70/1262

摘要： A method of providing signal synchronization for a radio access network may include transmitting a first carrier including synchronization signals on a first frequency from the radio access network. Information relating the first carrier on the first frequency with a second carrier on a second frequency may be transmitted from the radio access network, with this information being intended to be used in synchronization by a wireless terminal upon addition of the second carrier. More particularly, the first and second frequencies may be different. A command to add the second carrier as a downlink for transmissions may be transmitted to the wireless terminal. Related network nodes and wireless terminals are also discussed.

摘要翻译： 为无线电接入网络提供信号同步的方法可以包括从无线电接入网络发送包括在第一频率上的同步信号的第一载波。 可以从无线电接入网络发送第一频率上的第一载波与第二频率上的第二载波相关的信息，在添加第二载波时，该信息旨在由无线终端同步使用。 更具体地，第一和第二频率可以不同。 可以向无线终端发送将第二载波添加为用于传输的下行链路的命令。 还讨论了相关网络节点和无线终端。