公开(公告)号：US08369854B2

公开(公告)日：2013-02-05

申请号：US12516699

申请日：2007-12-19

申请人： Janne Peisa ,  Michael Meyer ,  András Rácz ,  Mats Sågfors ,  Johan Torsner

发明人： Janne Peisa ,  Michael Meyer ,  András Rácz ,  Mats Sågfors ,  Johan Torsner

IPC分类号： H04W36/00

CPC分类号： H04W36/26 ,  H04W36/02

摘要： A radio base station suitable for performing a handover operation for a LTE-variant of a radio access network comprises a transceiver and a status report requester. The transceiver is configured to facilitate wireless transmission between the radio base station and a wireless terminal over an air interface, including transmission of a radio link bearer for the connection over a downlink from the radio base station to the wireless terminal. The status report requester is configured to determine, according to one or more pre-defined criteria, whether to request from the wireless terminal a status report for a radio bearer prior to the radio base station transferring user data for the connection to another radio base station in conjunction with a handover.

摘要翻译： 适合于对无线电接入网络的LTE变型进行切换操作的无线电基站包括收发机和状态报告请求者。 收发器被配置为促进无线基站和无线终端之间通过空中接口的无线传输，包括通过无线电基站到无线终端的下行链路的连接的无线电链路承载的传输。 状态报告请求者被配置为根据一个或多个预定义的准则来确定在无线电基站传送用于连接到另一个无线电基站的用户数据之前是否从无线终端请求无线承载的状态报告 结合切换。

公开(公告)号：US20100135249A1

公开(公告)日：2010-06-03

申请号：US12596692

申请日：2008-04-23

申请人： Michael Meyer ,  Magnus Lindstrom ,  Janne Peisa ,  Ghyslain Pelletier ,  Mats Sagfors ,  Johan Torsner ,  Henning Wiemann

发明人： Michael Meyer ,  Magnus Lindstrom ,  Janne Peisa ,  Ghyslain Pelletier ,  Mats Sagfors ,  Johan Torsner ,  Henning Wiemann

IPC分类号： H04W36/00

CPC分类号： H04L1/1841 ,  H04W36/02

摘要： In a wireless communication network where base stations receive protocol data units (PDUs) from mobile stations for decompression and deciphering for ordered, sequential transfer as service data units (SDUs) to an associated core network, the teachings presented herein provide a method of supporting seamless handover of a mobile station from a source base station to a target base station. By way of example, the teachings herein apply to a network based on the E-UTRA specifications, as promulgated by the 3GPP. However, that example is non-limiting, as the teachings herein apply to any network that employs in-sequence data delivery and duplicate data detection at handover. Broadly, the source base station forwards out-of-sequence SDUs and corresponding sequence number information to the target base station in support of seamless handover, and the target base station uses that information to request retransmissions as needed for packet reordering.

摘要翻译： 在无线通信网络中，其中基站从移动台接收用于解压缩和解密的协议数据单元（PDU），用于有序的顺序传送作为服务数据单元（SDU）到相关联的核心网络，本文给出的教导提供了一种支持无缝 将移动台从源基站切换到目标基站。 作为示例，本文的教导适用于由3GPP公布的基于E-UTRA规范的网络。 然而，该示例是非限制性的，因为本文的教导适用于在切换时采用顺序数据传递和重复数据检测的任何网络。 广泛地说，源基站将无序SDU和相应的序列号信息转发给目标基站以支持无缝切换，目标基站使用该信息来根据需要重新分组以重新分组。

公开(公告)号：US20100077272A1

公开(公告)日：2010-03-25

申请号：US12444915

申请日：2007-10-09

申请人： Janne Peisa ,  Michael Meyer ,  Johan Torsner ,  Stefan Parkvall ,  Mats Sagfors ,  Magnus Lindström

发明人： Janne Peisa ,  Michael Meyer ,  Johan Torsner ,  Stefan Parkvall ,  Mats Sagfors ,  Magnus Lindström

IPC分类号： H04L1/18

CPC分类号： H04L7/0079 ,  H04L1/08 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1887 ,  H04L69/324 ,  H04W56/001

摘要： A method and apparatus according to the present invention addresses and/or prevents lost protocol synchronization in HARQ systems caused by ACK/NACK errors. One embodiment detects lost synchronization errors for NDI-based retransmission protocols and restores synchronization by sending an explicit RESET message. In response to the RESET message, the transmitter aborts the transmission of a current PDU and transmits a new PDU and corresponding NDI. Another embodiment prevents protocol synchronization errors by sending scheduling grants on a packet by packet basis. The receiver sends a subsequent explicit scheduling grant to the transmitter based on an error evaluation of a received PDU. The transmitter will not send the next PDU unless it receives the subsequent explicit scheduling grant.

摘要翻译： 根据本发明的方法和装置解决和/或防止由ACK / NACK错误引起的HARQ系统中丢失的协议同步。 一个实施例检测基于NDI的重传协议的丢失的同步错误，并通过发送显式的RESET消息来恢复同步。 响应于RESET消息，发射机中止当前PDU的传输，并发送新的PDU和相应的NDI。 另一个实施例通过逐个分组地发送调度许可来防止协议同步错误。 接收机基于接收到的PDU的错误评估向发射机发送后续的显式调度许可。 发送器将不发送下一个PDU，除非它接收到后续的显式调度许可。

公开(公告)号：US09338690B2

公开(公告)日：2016-05-10

申请号：US13119815

申请日：2008-09-23

申请人： Johan Torsner ,  Michael Meyer ,  Janne Peisa

发明人： Johan Torsner ,  Michael Meyer ,  Janne Peisa

IPC分类号： H04W28/06 ,  H04L1/00 ,  H04L1/18 ,  H04W8/26

CPC分类号： H04W28/06 ,  H04L1/0083 ,  H04L1/1822 ,  H04L1/1825 ,  H04L1/1887 ,  H04W8/26

摘要： Systems, devices, methods and software according to these exemplary embodiments provide for reducing the number of different sequence numbers used to transmit radio link control, RLC, data blocks to avoid, for example, sequence number stalling. This can be accomplished by, for example, transmitting or receiving RLC protocol data unit, PDU, segments as the initial or original instance of data communication.

摘要翻译： 根据这些示例性实施例的系统，设备，方法和软件提供减少用于发送无线电链路控制，RLC，数据块的不同序列号的数量，以避免例如序列号失速。 这可以通过例如发送或接收RLC协议数据单元，PDU作为数据通信的初始或原始实例的段来实现。

公开(公告)号：US08818375B2

公开(公告)日：2014-08-26

申请号：US13567173

申请日：2012-08-06

申请人： Michael Meyer ,  Magnus Stattin ,  Janne Peisa ,  Ghyslain Pelletier ,  Mats Fredrik Sägfors ,  Per Johan Torsner ,  Henning Wiemann

发明人： Michael Meyer ,  Magnus Stattin ,  Janne Peisa ,  Ghyslain Pelletier ,  Mats Fredrik Sägfors ,  Per Johan Torsner ,  Henning Wiemann

IPC分类号： H04Q7/20

CPC分类号： H04W36/18 ,  H04L1/1867 ,  H04L5/0055 ,  H04L47/34 ,  H04W36/02 ,  H04W36/08 ,  H04W88/16

摘要： In a wireless communication network where base stations receive protocol data units (PDUs) from mobile stations for decompression and deciphering for ordered, sequential transfer as service data units (SDUs) to an associated core network, the teachings presented herein provide a method of supporting seamless handover of a mobile station from a source base station to a target base station. By way of example, the teachings herein apply to a network based on the E-UTRA specifications, as promulgated by the 3GPP. However, that example is non-limiting, as the teachings herein apply to any network that employs in-sequence data delivery and duplicate data detection at handover. Broadly, the source base station forwards out-of-sequence SDUs and corresponding sequence number information to the target base station in support of seamless handover, and the target base station uses that information to request retransmissions as needed for packet reordering.

摘要翻译： 在无线通信网络中，其中基站从移动台接收用于解压缩和解密的协议数据单元（PDU），用于有序的顺序传送作为服务数据单元（SDU）到相关联的核心网络，本文给出的教导提供了一种支持无缝 将移动台从源基站切换到目标基站。 作为示例，本文的教导适用于由3GPP公布的基于E-UTRA规范的网络。 然而，该示例是非限制性的，因为本文的教导适用于在切换时采用顺序数据传递和重复数据检测的任何网络。 广泛地说，源基站将无序SDU和相应的序列号信息转发给目标基站以支持无缝切换，目标基站使用该信息来根据需要重新分组以重新分组。

公开(公告)号：US08489951B2

公开(公告)日：2013-07-16

申请号：US12444915

申请日：2007-10-09

申请人： Janne Peisa ,  Michael Meyer ,  Johan Torsner ,  Stefan Parkvall ,  Mats Sägfors ,  Magnus Lindström

发明人： Janne Peisa ,  Michael Meyer ,  Johan Torsner ,  Stefan Parkvall ,  Mats Sägfors ,  Magnus Lindström

IPC分类号： G08C25/02

CPC分类号： H04L7/0079 ,  H04L1/08 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1887 ,  H04L69/324 ,  H04W56/001

摘要： A method and apparatus according to the present invention addresses and/or prevents lost protocol synchronization in HARQ systems caused by ACK/NACK errors. One embodiment detects lost synchronization errors for NDI-based retransmission protocols and restores synchronization by sending an explicit RESET message. In response to the RESET message, the transmitter aborts the transmission of a current PDU and transmits a new PDU and corresponding NDI. Another embodiment prevents protocol synchronization errors by sending scheduling grants on a packet by packet basis. The receiver sends a subsequent explicit scheduling grant to the transmitter based on an error evaluation of a received PDU. The transmitter will not send the next PDU unless it receives the subsequent explicit scheduling grant.

摘要翻译： 根据本发明的方法和装置解决和/或防止由ACK / NACK错误引起的HARQ系统中丢失的协议同步。 一个实施例检测基于NDI的重传协议的丢失的同步错误，并通过发送显式的RESET消息来恢复同步。 响应于RESET消息，发射机中止当前PDU的传输，并发送新的PDU和相应的NDI。 另一个实施例通过逐个分组地发送调度许可来防止协议同步错误。 接收机基于接收到的PDU的错误评估向发射机发送后续的显式调度许可。 发送器将不发送下一个PDU，除非它接收到后续的显式调度许可。

公开(公告)号：US08477604B2

公开(公告)日：2013-07-02

申请号：US13100543

申请日：2011-05-04

申请人： Johan Torsner ,  Michael Meyer ,  Janne Peisa

发明人： Johan Torsner ,  Michael Meyer ,  Janne Peisa

IPC分类号： H04J1/16

CPC分类号： H04W28/0289 ,  H04L1/1607 ,  H04L1/1685 ,  H04L43/06 ,  H04L43/062

摘要： Method and arrangement in a first node for requesting a status report from a second node. The first node and the second node are both comprised within a wireless communication network. The status report comprises positive and/or negative acknowledgement of data sent from the first node, to be received by the second node. The first node comprises a first counter configured to count the number of transmitted Protocol Data Units, PDUs, and a second counter configured to count the number of transmitted data bytes. The method and arrangements comprises initializing the first and the second counter to zero, transmitting data to be received by the second node, comparing the value of the first and the second counters with a first threshold limit value and a second threshold limit value and requesting a status report from the second node if any of the threshold limit values is reached or exceeded.

公开(公告)号：US08265628B2

公开(公告)日：2012-09-11

申请号：US12596692

申请日：2008-04-23

申请人： Magnus Lindström ,  Michael Meyer ,  Janne Peisa ,  Ghyslain Pelletier ,  Mats Fredrik Sågfors ,  Per Johan Torsner ,  Henning Wiemann

发明人： Magnus Lindström ,  Michael Meyer ,  Janne Peisa ,  Ghyslain Pelletier ,  Mats Fredrik Sågfors ,  Per Johan Torsner ,  Henning Wiemann

IPC分类号： H04Q7/20

CPC分类号： H04L1/1841 ,  H04W36/02

摘要： In a wireless communication network where base stations receive protocol data units (PDUs) from mobile stations for decompression and deciphering for ordered, sequential transfer as service data units (SDUs) to an associated core network, the teachings presented herein provide a method of supporting seamless handover of a mobile station from a source base station to a target base station. By way of example, the teachings herein apply to a network based on the E-UTRA specifications, as promulgated by the 3GPP. However, that example is non-limiting, as the teachings herein apply to any network that employs in-sequence data delivery and duplicate data detection at handover. Broadly, the source base station forwards out-of-sequence SDUs and corresponding sequence number information to the target base station in support of seamless handover, and the target base station uses that information to request retransmissions as needed for packet reordering.

摘要翻译： 在无线通信网络中，其中基站从移动台接收用于解压缩和解密的协议数据单元（PDU），用于有序的顺序传送作为服务数据单元（SDU）到相关联的核心网络，本文给出的教导提供了一种支持无缝 将移动台从源基站切换到目标基站。 作为示例，本文的教导适用于由3GPP公布的基于E-UTRA规范的网络。 然而，该示例是非限制性的，因为本文的教导适用于在切换时采用顺序数据传递和重复数据检测的任何网络。 广泛地说，源基站将无序SDU和相应的序列号信息转发给目标基站以支持无缝切换，目标基站使用该信息来根据需要重新分组以重新分组。

公开(公告)号：US20110205926A1

公开(公告)日：2011-08-25

申请号：US13100543

申请日：2011-05-04

申请人： Johan Torsner ,  Michael Meyer ,  Janne Peisa

发明人： Johan Torsner ,  Michael Meyer ,  Janne Peisa

IPC分类号： H04W24/00

CPC分类号： H04W28/0289 ,  H04L1/1607 ,  H04L1/1685 ,  H04L43/06 ,  H04L43/062

摘要： Method and arrangement in a first node for requesting a status report from a second node. The first node and the second node are both comprised within a wireless communication network. The status report comprises positive and/or negative acknowledgement of data sent from the first node, to be received by the second node. The first node comprises a first counter configured to count the number of transmitted Protocol Data Units, PDUs, and a second counter configured to count the number of transmitted data bytes. The method and arrangements comprises initialising the first and the second counter to zero, transmitting data to be received by the second node, comparing the value of the first and the second counters with a first threshold limit value and a second threshold limit value and requesting a status report from the second node if any of the threshold limit values is reached or exceeded.

摘要翻译： 用于从第二节点请求状态报告的第一节点中的方法和装置。 第一节点和第二节点都包括在无线通信网络内。 状态报告包括从第一节点发送的数据的肯定和/或否定确认，以由第二节点接收。 第一节点包括被配置为对所发送的协议数据单元的数量进行计数的第一计数器，以及被配置为对发送的数据字节数进行计数的第二计数器。 所述方法和装置包括将第一和第二计数器初始化为零，发送要由第二节点接收的数据，将第一和第二计数器的值与第一阈值极限值和第二阈值极限值进行比较，并请求 如果达到或超过任何阈值极限值，则来自第二个节点的状态报告。

公开(公告)号：US07948879B2

公开(公告)日：2011-05-24

申请号：US12350619

申请日：2009-01-08

申请人： Johan Torsner ,  Michael Meyer ,  Janne Peisa

发明人： Johan Torsner ,  Michael Meyer ,  Janne Peisa

IPC分类号： H04J1/16

CPC分类号： H04W28/0289 ,  H04L1/1607 ,  H04L1/1685 ,  H04L43/06 ,  H04L43/062

摘要： Method and arrangement in a first node for requesting a status report from a second node. The first node and the second node are both comprised within a wireless communication network. The status report comprises positive and/or negative acknowledgement of data sent from the first node, to be received by the second node. The first node comprises a first counter configured to count the number of transmitted Protocol Data Units, PDUs, and a second counter configured to count the number of transmitted data bytes. The method and arrangements comprises initializing the first and the second counter to zero, transmitting data to be received by the second node, comparing the value of the first and the second counters with a first threshold limit value and a second threshold limit value and requesting a status report from the second node if any of the threshold limit values is reached or exceeded.

摘要翻译： 用于从第二节点请求状态报告的第一节点中的方法和装置。 第一节点和第二节点都包括在无线通信网络内。 状态报告包括从第一节点发送的数据的肯定和/或否定确认，以由第二节点接收。 第一节点包括被配置为对所发送的协议数据单元的数量进行计数的第一计数器，以及被配置为对发送的数据字节数进行计数的第二计数器。 该方法和装置包括将第一和第二计数器初始化为零，发送要由第二节点接收的数据，将第一和第二计数器的值与第一阈值极限值和第二阈值极限值进行比较，并请求 如果达到或超过任何阈值极限值，则来自第二个节点的状态报告。