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    • 3. 发明授权
    • Gateway, base station, communication network and synchronization method thereof
    • 网关,基站,通信网络及其同步方法
    • US08437371B2
    • 2013-05-07
    • US12438110
    • 2007-08-22
    • He WangZhongji HuYonggang WangHua ChaoYu ChenPingping Xing
    • He WangZhongji HuYonggang WangHua ChaoYu ChenPingping Xing
    • H04J3/06
    • H04W56/002H04J3/0667H04W4/06H04W88/08H04W88/16H04W92/045H04W92/12
    • Discloses is a gateway, base station, communication network and synchronization method thereof. The method comprises: at time T1, sending from the gateway to the base stations a synchronization request signal; at time T2, receiving by the base stations the synchronization request signal; at time T3, sending from the base stations to the gateway the synchronization response comprising the times T2 and T3; at time T4, receiving by the gateway the synchronization response signals; and calculating for the base stations a mapping relationship between the time system of the gateway and the time system of the base station is calculated based on the times T1, T2, T3 and T4. With the configuration and method proposed in present invention, it can be avoided the problem that accurate synchronization between the gateway and the base stations can not be reached for MBMS data packets in LTE because of path delay and jitter error, so that every base station can specify the same transmitting time for MBMS data packets to guarantee that UE could implement correct RF combining.
    • 公开了一种网关,基站,通信网络及其同步方法。 该方法包括:在时间T1,从网关向基站发送同步请求信号; 在时间T2,由基站接收同步请求信号; 在时间T3,从基站向网关发送包括时间T2和T3的同步响应; 在时间T4,由网关接收同步响应信号; 并且基于时间T1,T2,T3和T4计算基站的时间系统与基站的时间系统之间的映射关系。 利用本发明提出的配置和方法,可以避免由于路径延迟和抖动误差而导致LTE中的MBMS数据分组无法达到网关与基站之间的准确同步的问题,从而每个基站可以 为MBMS数据包指定相同的发送时间,以保证UE可以实现正确的RF组合。
    • 4. 发明申请
    • GATEWAY, BASE STATION, COMMUNICATION NETWORK AND SYNCHRONIZATION METHOD THEREOF
    • 网关,基站,通信网络及其同步方法
    • US20110268018A1
    • 2011-11-03
    • US12438110
    • 2007-08-22
    • He WangZhongji HuYonggang WangHua ZhaoYu ChenPingping Xing
    • He WangZhongji HuYonggang WangHua ZhaoYu ChenPingping Xing
    • H04W56/00
    • H04W56/002H04J3/0667H04W4/06H04W88/08H04W88/16H04W92/045H04W92/12
    • Discloses is a gateway, base station, communication network and synchronization method thereof. The method comprises: at time T1, sending from the gateway to the base stations a synchronization request signal; at time T2, receiving by the base stations the synchronization request signal; at time T3, sending from the base stations to the gateway the synchronization response comprising the times T2 and T3; at time T4, receiving by the gateway the synchronization response signals; and calculating for the base stations a mapping relationship between the time system of the gateway and the time system of the base station is calculated based on the times T1, T2, T3 and T4. With the configuration and method proposed in present invention, it can be avoided the problem that accurate synchronization between the gateway and the base stations can not be reached for MBMS data packets in LTE because of path delay and jitter error, so that every base station can specify the same transmitting time for MBMS data packets to guarantee that UE could implement correct RF combining.
    • 公开了一种网关,基站,通信网络及其同步方法。 该方法包括:在时间T1,从网关向基站发送同步请求信号; 在时间T2,由基站接收同步请求信号; 在时间T3,从基站向网关发送包括时间T2和T3的同步响应; 在时间T4,由网关接收同步响应信号; 并且基于时间T1,T2,T3和T4计算基站的时间系统与基站的时间系统之间的映射关系。 利用本发明提出的配置和方法,可以避免由于路径延迟和抖动误差而导致LTE中的MBMS数据分组无法达到网关与基站之间的准确同步的问题,从而每个基站可以 为MBMS数据包指定相同的发送时间,以保证UE可以实现正确的RF组合。
    • 6. 发明授权
    • Evolved multimedia broadcast/multicast service access gateway, base station and methods thereof
    • 演进的多媒体广播/组播业务接入网关,基站及其方法
    • US08320290B2
    • 2012-11-27
    • US12438101
    • 2007-08-21
    • Hua ChaoYonggang WangYu ChenHe WangZhongji Hu
    • Hua ChaoYonggang WangYu ChenHe WangZhongji Hu
    • H04H20/71H04H20/72
    • H04L65/403H04W4/06H04W60/00H04W72/005H04W76/40H04W80/04H04W88/16
    • The present invention provides an Evolved Multimedia Broadcast/Multicast Service (EMBMS) access gateway supporting network multicast, comprising: receiving/responding means for receiving a Multimedia Broadcast/Multicast Service (MBMS) Session Start message from a Broadcast/Multicast-Service Center (BM-SC) and for returning a response message to the BM-SC after receiving the MBMS Session Start message; storage means for storing a mapping relationship between respective MBMS service areas (SAs) and respective base stations; determining means for determining base station(s) associated with the MBMS based on the stored mapping relationship when the receiving/responding means receives the MBMS Session Start message; and transmitting means for transmitting the MBMS Session Start message to the determined bases station(s).
    • 本发明提供一种支持网络多播的演进多媒体广播/多播服务(EMBMS)接入网关,包括:接收/响应装置,用于从广播/组播服务中心(BM)接收多媒体广播/组播服务(MBMS)会话开始消息 -SC),并且用于在接收到MBMS会话开始消息之后将响应消息返回给BM-SC; 存储装置,用于存储各个MBMS服务区域(SA)和各个基站之间的映射关系; 确定装置,用于当所述接收/响应装置接收到所述MBMS会话开始消息时,基于所存储的映射关系来确定与所述MBMS相关联的基站; 以及用于将MBMS会话开始消息发送到所确定的基站的发送装置。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR ESTABLISHING A SERVICE IN A FIRST FREQUENCY
    • 用于建立第一频率服务的方法和装置
    • US20090318149A1
    • 2009-12-24
    • US12298184
    • 2007-04-17
    • Pingping XingZhongji HuYu ChenHua Chao
    • Pingping XingZhongji HuYu ChenHua Chao
    • H04W36/12
    • H04W48/20H04W4/06H04W36/0007H04W36/38H04W72/005
    • The present invention relates to a method for establishing a service in a first frequency in a communication network, wherein the first frequency does not support the service or supports it in a limited way, the method comprises the following steps: determining the service to be established, re-selecting or redirecting to a second frequency that is suitable for the service, so as to carry out the service in the second frequency. The present invention also relates to user equipment and a network apparatus for establishing a service in a first frequency in a communication network, wherein the first frequency does not support the service or supports it in a limited way. According to the present invention, a non-MBMS service may be established in the MBMS dedicated frequency, so as to carry out the non-MBMS service in the normal frequency.
    • 本发明涉及一种用于在通信网络中以第一频率建立业务的方法,其中所述第一频率不支持所述业务或以有限的方式支持所述业务,所述方法包括以下步骤:确定要建立的业务 ,重新选择或重定向到适合于该服务的第二频率,以便以第二频率执行服务。 本发明还涉及用于在通信网络中以第一频率建立服务的用户设备和网络设备,其中第一频率不支持服务或以有限的方式支持该服务。 根据本发明,可以在MBMS专用频率中建立非MBMS服务,以便以正常频率执行非MBMS服务。