公开(公告)号：EP2144391A1

公开(公告)日：2010-01-13

申请号：EP08739917.6

申请日：2008-04-04

申请人： NTT DoCoMo, Inc.

发明人： UMESH, Anil ,  KATO, Yasuhiro

IPC分类号： H04L1/16 ,  H04L29/08

CPC分类号： H04L1/1607 ,  H04L1/1835 ,  H04L1/1841 ,  H04L1/1848 ,  H04L1/1854

摘要： In a retransmission request transmitting method, an RLC sublayer of a receiving-side apparatus determines whether or not an RLC-PDU-data (or an RLC-data-Sub-PDU) not received yet is under retransmission control processing in a MAC sublayer; and generates and transmits a STATUS-PDU (NACK) including only a RLC-data-PDU which has neither been received yet nor is under the retransmission control processing in the MAC sublayer, on the basis of the determination result, at a timing when the STATUS-PDU is generated.

公开(公告)号：EP2056609A1

公开(公告)日：2009-05-06

申请号：EP07792493.4

申请日：2007-08-14

申请人： NTT DoCoMo, Inc.

发明人： IWAMURA, Mikio ,  ISHII, Minami ,  KATO, Yasuhiro ,  ABETA, Sadayuki

IPC分类号： H04Q7/22 ,  H04Q7/28

CPC分类号： H04W48/20 ,  H04W28/08 ,  H04W48/12

摘要： One feature of the present invention relates to a base station for operating multiple cells each having a predefined bandwidth, including: a load measurement unit configured to measure traffic status in each of the cells; a selection probability computation unit configured to compute a selection probability used to select a preselected cell based on the traffic status, the preselected cell being accessed by a mobile station in transition from an idle state to an active state; a transmission unit configured to transmit the selection probability; and a control plane control unit configured to connect to the preselected cell being accessed by the mobile station.

摘要翻译： 本发明的一个特征涉及一种用于操作每个具有预定义带宽的多个小区的基站，包括：负载测量单元，被配置为测量每个小区中的业务状态; 选择概率计算单元，被配置为基于所述业务状态来计算用于选择预选小区的选择概率，所述预选小区在从空闲状态转换到活动状态时由移动台接入; 传输单元，被配置为传输选择概率; 以及控制平面控制单元，被配置为连接到正在被移动台接入的预选小区。

公开(公告)号：EP2012549A1

公开(公告)日：2009-01-07

申请号：EP07742086.7

申请日：2007-04-20

申请人： NTT DoCoMo, Inc.

发明人： KATO, Yasuhiro ,  MOTEGI, Masayuki ,  UMESH, Anil ,  NAKAMURA, Takehiro

IPC分类号： H04Q7/36

CPC分类号： H04W72/1289 ,  H04W52/0216 ,  Y02D70/00

摘要： A downlink packet scheduling method is disclosed for a shared channel or a common channel in a mobile communication system between a base station and a mobile station, the method including a step in which the base station determines whether there is a waiting packet to be transmitted to the mobile station other than a current transmission packet; a step in which when it is determined that there is no waiting packet to be transmitted, the base station sets a stop period "t" in which packet transmission is temporarily stopped after the current packet transmission; a step in which the base station transmits information indicating the stop period "t" through a schedule information channel transmitting schedule information of downlink packets; and a step in which the base station stops the packet transmission to the mobile station during the stop period "t" after the current packet transmission.

公开(公告)号：EP2001246A2

公开(公告)日：2008-12-10

申请号：EP07739711.5

申请日：2007-03-26

申请人： NTT DoCoMo, Inc.

发明人： MOTEGI, Masayuki ,  KATO, Yasuhiro ,  HAPSARI, Wuri Andarmawanti ,  NAKAMURA, Takehiro

IPC分类号： H04Q7/22 ,  H04L12/56 ,  H04Q7/28 ,  H04Q7/36 ,  H04Q7/38

CPC分类号： H04W36/02 ,  H04L49/90 ,  H04L49/9094

摘要： A path control apparatus includes a sequence number assignment unit assigning successive sequence numbers to respective user data packets transmitted from an upper layer; and a transmission unit transmitting the user data packets with the assigned sequence numbers to a handover source base station or a handover target base station. A base station includes a sequence correction unit sorting at least one of a user data packet transmitted from a path control apparatus and a user data packet transferred from a handover source base station in a correct order in accordance with sequence numbers successively assigned to respective user data packets; and a transfer unit transferring one or more user data packets of the user data packets having the assigned sequence numbers, wherein the handover source base station has not transmitted the one or more user data packets or waits for transmission acknowledgement for the one or more user data packets.

摘要翻译： 路径控制装置包括：序列号分配单元，对从上层发送的各个用户数据包分配连续的序列号; 以及发送单元，将具有所分配的序列号的用户数据分组发送到切换源基站或切换目的地基站。 基站包括序列校正单元，根据连续分配给各个用户数据的序列号，对从路径控制装置发送的用户数据分组和从切换源基站以正确的顺序传送的用户数据分组中的至少一个进行排序 包; 以及传送单元，其传送具有所分配的序列号的用户数据分组的一个或多个用户数据分组，其中所述切换源基站尚未发送所述一个或多个用户数据分组或者等待所述一个或多个用户数据的传输确认 数据包。

公开(公告)号：EP1991012A1

公开(公告)日：2008-11-12

申请号：EP07714947.4

申请日：2007-02-26

申请人： NTT DoCoMo, Inc.

发明人： KATO, Yasuhiro ,  HAPSARI, Wuri Andarmawanti ,  MOTEGI, Masayuki ,  NAKAMURA, Takehiro

IPC分类号： H04Q7/22 ,  H04L12/46 ,  H04L12/56

CPC分类号： H04W36/0055

摘要： Embodiments of the present invention make it possible to reduce loss and delay of downlink user data transmitted at regular time intervals in a mobile communication system employing a hard handover method, and make it possible to easily perform high-quality handover solely by a handover-starting base station. A base station for transmitting downlink user data at regular time intervals to a mobile station is disclosed. The base station is configured to transmit a handover-command signal immediately after transmitting the downlink user data to the mobile station.

摘要翻译： 本发明的实施例使得可以减少在采用硬切换方法的移动通信系统中以规则的时间间隔发送的下行用户数据的丢失和延迟，并且使得可以仅通过切换启动轻松地执行高质量的切换 基站。 公开了一种用于以规则的时间间隔向移动台发送下行用户数据的基站。 基站被配置为在将下行链路用户数据发送到移动台之后立即发送切换命令信号。

公开(公告)号：EP1924012A1

公开(公告)日：2008-05-21

申请号：EP06797464.2

申请日：2006-09-05

申请人： NTT DoCoMo, Inc.

发明人： MOTEGI, Masayuki ,  KATO, Yasuhiro ,  ISHII, Minami ,  NAKAMURA, Takehiro

IPC分类号： H04B7/26 ,  H04Q7/20 ,  H04Q7/38

CPC分类号： H04W56/002 ,  H04W56/0015 ,  H04W92/10 ,  H04W92/20

摘要： The present invention provides a data transmission system where MBMS data are transmitted to a mobile station in synchronization among multiple base stations without use of any central control node for controlling the multiple base stations. The data transmission system includes a communication node managing user common data, one or more radio base stations coupled to the communication node and one or more mobile stations. In the system, each of the one or more base stations is synchronized with absolute time commonly used by the base stations. The communication node includes a reception unit receiving the user common data for one or more users from a provider and a determination unit determining through communications with the one or more base stations a transmission timing when the one or more base stations transmit the user common data to the mobile stations.

摘要翻译： 本发明提供一种数据传输系统，其中MBMS数据在多个基站之间同步发送到移动台，而不使用用于控制多个基站的任何中央控制节点。 数据传输系统包括管理用户公共数据的通信节点，耦合到通信节点的一个或多个无线电基站和一个或多个移动台。 在该系统中，一个或多个基站中的每个基站与基站通常使用的绝对时间同步。 通信节点包括接收单元，用于从提供商接收一个或多个用户的用户公共数据，以及确定单元，通过与一个或多个基站通信来确定当一个或多个基站将用户公共数据发送到 移动台。

公开(公告)号：EP1921773A1

公开(公告)日：2008-05-14

申请号：EP06796766.1

申请日：2006-08-25

申请人： NTT DoCoMo, Inc.

发明人： MOTEGI, Masayuki ,  KATO, Yasuhiro ,  ISHII, Minami ,  NAKAMURA, Takehiro

IPC分类号： H04B7/26 ,  H04Q7/38

CPC分类号： H04W72/005

摘要： A base station used in a packet transmission system in which shared user data to be selectively received by a user are transmitted using a shared data channel from one or more base stations to one or more mobile stations is provided. The base station includes means configured to provide user control data associated with transmission of the shared user data; means configured to provide notification data that include notification information used to select the shared user data and group identification information for specifying the notification information; and means configured to generate an associated control channel that is associated with the shared data channel and includes the user control data and the notification data, the associated control channel and the shared data channel being transmitted from the base station to the mobile station. The generated associated control channel is transmitted from the base station to the mobile stations.

摘要翻译： 提供了一种在分组传输系统中使用的基站，其中使用从一个或多个基站到一个或多个移动台的共享数据信道来发送用户选择性地接收的共享用户数据。 基站包括被配置为提供与共享用户数据的传输相关联的用户控制数据的装置; 被配置为提供包括用于选择所述共享用户数据的通知信息和用于指定所述通知信息的组识别信息的通知数据的装置; 以及被配置为生成与所述共享数据信道相关联的相关联的控制信道并且包括所述用户控制数据和所述通知数据，所述相关控制信道和所述共享数据信道从所述基站发送到所述移动站的装置。 生成的相关控制信道从基站发送到移动台。