公开(公告)号：EP2536241B1

公开(公告)日：2017-12-27

申请号：EP10845744.1

申请日：2010-02-12

申请人： Fujitsu Limited

发明人： OHTA, Yoshiaki ,  KAWASAKI, Yoshihiro ,  TAJIMA, Yoshiharu ,  TANAKA, Yoshinori ,  SUGIYAMA, Katsumasa

IPC分类号： H04W74/02 ,  H04W74/08 ,  H04W76/02 ,  H04W72/04

CPC分类号： H04W72/042 ,  H04W16/14 ,  H04W74/02 ,  H04W74/0833 ,  H04W76/18

摘要： Efficiency in data transmission performed in the case of a contention based radio resource being set is improved. A radio communication apparatus (2) selectively performs one of a first transmission method using for data transmission a radio resource which is assigned by a radio communication apparatus (1) and which can be used on a contention basis by a plurality of radio communication apparatus (2 and 3) and a second transmission method involving random access. Alternatively, the radio communication apparatus (2) selectively performs one of the first transmission method and a third transmission method involving a request made to the radio communication apparatus (1) to assign a radio resource for data transmission.

公开(公告)号：EP2804427A1

公开(公告)日：2014-11-19

申请号：EP12864938.1

申请日：2012-01-13

申请人： Fujitsu Limited

发明人： OHTA, Yoshiaki ,  TAJIMA, Yoshiharu ,  ITO, Akira

IPC分类号： H04W52/02 ,  H04W24/08

摘要： To suppress deterioration in measurement.
A communication unit (1a) of a radio terminal (1) performs radio measurement (m) of a base station and monitoring of a paging signal (p) within a periodic duration (T). A controller (1b) controls the communication unit (1a) so as to perform filtering of the radio measurement (m) within the duration (T) with intervals less than half of the duration (T).

公开(公告)号：EP2675237A1

公开(公告)日：2013-12-18

申请号：EP11858196.6

申请日：2011-02-10

申请人： Fujitsu Limited

发明人： OHTA, Yoshiaki ,  TANAKA, Yoshinori ,  TAJIMA, Yoshiharu ,  KAWASAKI, Yoshihiro

IPC分类号： H04W76/02 ,  H04W72/04 ,  H04W74/08

CPC分类号： H04W74/0833 ,  H04L5/001 ,  H04W24/10 ,  H04W72/1284 ,  H04W74/006

摘要： It is an object to provide a wireless communication system that can implement high-speed communication. During carrier aggregation, a BSR management unit, i.e., a sending device, sends a BSR by using a Pcell. In a receiving device, a BSR management unit (62) that received the BSR by using the PCell determines whether a data exchange is performed using the SCell. If it is determined that a data exchange is performed by using the SCell, a RA management unit (61) sends an Msg1 that includes a dedicated preamble that is unique to a device.

摘要翻译： 目的是提供可以实现高速通信的无线通信系统。 在载波聚合过程中，BSR管理单元，即发送设备通过Pcell发送BSR。 在接收设备中，通过使用PCell接收BSR的BSR管理单元（62）确定是否使用SCell执行数据交换。 如果确定使用SCell执行数据交换，则RA管理单元（61）发送包括对设备唯一的专用前导码的Msg1。

公开(公告)号：EP2605571A1

公开(公告)日：2013-06-19

申请号：EP10855904.8

申请日：2010-08-13

申请人： Fujitsu Limited

发明人： OHTA, Yoshiaki ,  KAWASAKI, Yoshihiro ,  OBUCHI, Kazuhisa ,  TAJIMA, Yoshiharu ,  TANAKA, Yoshinori

IPC分类号： H04W16/26 ,  H04B7/15

CPC分类号： H04B7/15507 ,  H04B7/15528 ,  H04B7/15564 ,  H04W72/0446 ,  H04W74/002 ,  H04W74/0833 ,  H04W88/04

摘要： Random access through a relay station is smoothly performed.
The relay station (20) performs wireless communications with a base station (10), and a mobile station (30) performs wireless communications with the base station (10) or relay station (20). The relay station (20) limits reception of a radio signal from the base station (10) at timing at which a radio signal is transmitted to the mobile station (30). The relay station (20) transmits a message #1 about random access to the base station (10). The base station (10) transmits a message #2 at timing which is determined based on whether a transmission source of the message #1 is the relay station (20). The relay station (20) receives the message #2 from the base station (10).

摘要翻译： 通过中继站的随机访问顺利进行。 中继站（20）与基站（10）进行无线通信，移动台（30）与基站（10）或中继站（20）进行无线通信。 中继站（20）在将无线电信号发送到移动台（30）的定时，限制来自基站（10）的无线电信号的接收。 中继站（20）向基站（10）发送关于随机接入的消息＃1。 基站（10）基于消息＃1的发送源是否是中继站（20）确定的定时发送消息＃2。 中继站（20）从基站（10）接收消息＃2。

公开(公告)号：EP2547152A1

公开(公告)日：2013-01-16

申请号：EP10847437.0

申请日：2010-03-11

申请人： Fujitsu Limited

发明人： TAJIMA, Yoshiharu ,  TANAKA, Yoshinori ,  KAWASAKI, Yoshihiro ,  OHTA, Yoshiaki ,  SUGIYAMA, Katsumasa

IPC分类号： H04W48/16 ,  H04W36/00

CPC分类号： H04W48/20 ,  H04W48/16

摘要： In a mobile communication system including plural base stations forming cells and a mobile station being disposed in one of the cells and wirelessly communicating with one of the plural base stations, the plural base stations include a cell group information broadcast unit broadcasting plural cell group information items which are information indicating a relationship between moving directions and cell groups, and the mobile station includes a cell group information selection unit, selecting a cell group information item corresponding to an estimated moving direction of the mobile station out of the plural cell group information items broadcast by the one of the plural base stations, and a standby cell selection unit selecting, as a new standby cell, a cell having a receiving state satisfying a desired condition from among cells included in the selected cell group information item.

摘要翻译： 在包括形成小区的多个基站的移动通信系统和设置在其中一个小区中并与多个基站中的一个基站无线通信的移动站的情况下，多个基站包括：小区组信息广播单元，广播多个小区组信息项 是表示移动方向与小区组之间的关系的信息，移动站包括小区组信息选择部，从多个小区组信息项广播中选择与移动台的估计移动方向对应的小区组信息项 并且备用小区选择单元从包括在所选择的小区组信息项中的小区中选择具有满足期望条件的接收状态的小区作为新备用小区。

公开(公告)号：EP1968330A1

公开(公告)日：2008-09-10

申请号：EP05822376.9

申请日：2005-12-27

申请人： FUJITSU LIMITED

发明人： OHTA, Yoshiaki ,  TAJIMA, Yoshiharu ,  KAWABATA, Kazuo

IPC分类号： H04Q7/22 ,  H04Q7/28

CPC分类号： H04W36/08 ,  H04W36/0072 ,  H04W36/02 ,  H04W36/026 ,  H04W36/18 ,  H04W36/28 ,  H04W80/04 ,  H04W88/14 ,  H04W92/12

摘要： The present invention is a handover control method in a mobile communication system that performs handover control by switching base stations that communicate with a mobile terminal as the mobile terminal moves. In this handover control method, a mobile control device selects one or more handover base station candidates based on the communication state, and based on the communication capabilities of the handover base station candidates, decides a transmission rate for multicasting communication data, and transmits communication data to each of the handover base station candidates at the decided transmission rate, and a handover base station candidate that is decided as a handover base station sends the saved multicast communication data to the mobile terminal.

摘要翻译： 本发明是移动通信系统中的切换控制方法，该移动通信系统通过在移动终端移动时与移动终端通信的基站进行切换控制。 在该切换控制方法中，移动控制装置基于通信状态选择一个以上的切换基站候选，基于切换基站候选的通信能力，决定通信数据的组播的传输速度，并发送通信数据 以决定的传输速率向每个切换基站候选者发送，并且被确定为切换基站的切换基站候选将所保存的多播通信数据发送到移动终端。

公开(公告)号：EP2802177B1

公开(公告)日：2019-05-22

申请号：EP12864614.8

申请日：2012-01-06

申请人： Fujitsu Limited

发明人： TAJIMA, Yoshiharu ,  OHTA, Yoshiaki ,  ITO, Akira ,  SUGIYAMA, Katsumasa

IPC分类号： H04W52/02 ,  H04W76/25 ,  H04W48/08 ,  H04W48/10

公开(公告)号：EP2675237B1

公开(公告)日：2018-04-18

申请号：EP11858196.6

申请日：2011-02-10

申请人： Fujitsu Limited

发明人： OHTA, Yoshiaki ,  TANAKA, Yoshinori ,  TAJIMA, Yoshiharu ,  KAWASAKI, Yoshihiro

IPC分类号： H04L5/00 ,  H04W74/08 ,  H04W24/10 ,  H04W72/12 ,  H04W74/00

CPC分类号： H04W74/0833 ,  H04L5/001 ,  H04W24/10 ,  H04W72/1284 ,  H04W74/006

摘要： It is an object to provide a wireless communication system that can implement high-speed communication. During carrier aggregation, a BSR management unit, i.e., a sending device, sends a BSR by using a Pcell. In a receiving device, a BSR management unit (62) that received the BSR by using the PCell determines whether a data exchange is performed using the SCell. If it is determined that a data exchange is performed by using the SCell, a RA management unit (61) sends an Msg1 that includes a dedicated preamble that is unique to a device.

公开(公告)号：EP2690901A1

公开(公告)日：2014-01-29

申请号：EP11862119.2

申请日：2011-03-25

申请人： Fujitsu Limited

发明人： TAJIMA, Yoshiharu ,  TANAKA, Yoshinori ,  KAWASAKI, Yoshihiro ,  OHTA, Yoshiaki ,  SUGIYAMA, Katsumasa

IPC分类号： H04W16/24

CPC分类号： H04W88/08 ,  H04L5/001 ,  H04W12/04 ,  H04W76/10

摘要： A base station (100) includes cells (110, 120, and 130) and a virtual cell (140). The cells (110, 120, and 130) each includes a first processing unit (112 and 113) that execute physical layer and data link layer processes for executing radio communication with a mobile station (101) and a second processing unit (114) that executes network layer processes controlling the radio communication. A network layer processing unit (141) of a virtual cell (140) controls a series of radio communication sessions between the mobile station (101) and the base station (100) based on carrier aggregation using the first processing units (112 and 113) of each of the cells (110, 120, and 130).

摘要翻译： 基站（100）包括小区（110,120和130）和虚拟小区（140）。 小区（110,120和130）各自包括执行与移动站（101）和第二处理单元（114）进行无线电通信的物理层和数据链路层处理的第一处理单元（112和113） 执行控制无线电通信的网络层进程。 虚拟小区（140）的网络层处理单元（141）基于使用第一处理单元（112和113）的载波聚合来控制移动站（101）和基站（100）之间的一系列无线电通信会话， 的每个单元（110,120和130）。

公开(公告)号：EP2665303A1

公开(公告)日：2013-11-20

申请号：EP11855758.6

申请日：2011-01-12

申请人： Fujitsu Limited

发明人： TAJIMA, Yoshiharu ,  TANAKA, Yoshinori ,  KAWASAKI, Yoshihiro ,  OHTA, Yoshiaki ,  SUGIYAMA, Katsumasa ,  OBUCHI, Kazuhisa

IPC分类号： H04W16/26 ,  H04W76/02

CPC分类号： H04W76/028 ,  H04B7/155 ,  H04W68/00 ,  H04W76/19 ,  H04W84/047 ,  H04W88/04

摘要： An object is to provide a wireless communication system in which a mobile station working under a relay station continues wireless communication even if an RLF occurs between a base station and a relay station. To realize this object, the wireless communication system is provided in which the relay station relays wireless communication between the base station and the mobile station, where the relay station includes an acquiring unit and a notifying unit. The acquiring unit acquires, from the base station that retains information on the mobile station used for the wireless communication, identification information on the base station. The notifying unit notifies the mobile station of the identification information acquired by the acquiring unit. Furthermore, the mobile station includes a reconnecting unit. When connection with the relay station is released, the reconnecting unit performs a reconnection request with respect to the base station that is identified by the identification information that is notified by the relay station.

摘要翻译： 目的在于提供一种无线通信系统，其中在中继站下工作的移动台即使在基站与中继站之间发生RLF也继续进行无线通信。 为了实现该目的，提供了一种无线通信系统，其中中继站中继基站与移动台之间的无线通信，其中中继站包括获取单元和通知单元。 获取单元从基站获取保存关于用于无线通信的移动站的信息的基站上的识别信息。 通知单元向移动台通知由获取单元获取的识别信息。 此外，移动站包括重新连接单元。 当与中继站的连接被释放时，重新连接单元对由中继站通知的识别信息识别的基站执行重新连接请求。