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    • 2. 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。
    • 4. 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。
    • 6. 发明申请
    • METHOD AND SYSTEM FOR DATA RETRANSMISSION IN MBMS
    • MBMS中数据重传的方法与系统
    • US20100177676A1
    • 2010-07-15
    • US12665842
    • 2007-06-22
    • Yonggang WangZhongji HuHua ChaoYu Chen
    • Yonggang WangZhongji HuHua ChaoYu Chen
    • H04H20/71
    • H04L1/1867H04L1/1692H04L1/1854H04L1/1861H04L2001/0093H04W72/005H04W72/0446H04W72/0453
    • The present invention provides a method of data retransmission in MBMS (Multimedia Broadcast/Multicast Service), comprising: a step in which a base station allocates an uplink time-frequency resource block to mobile stations; a step in which the mobile stations feed back uplink feedback signalings with respect to the received downlink MBMS service data to the base station on the allocated uplink time-frequency resource block, wherein the uplink feedback signalings with respect to one and the same downlink MBMS service data are combined in one and the same uplink time-frequency resource, and the uplink feedback signalings with respect to different downlink MBMS service data are multiplexed in one uplink time-frequency resource block; a step in which the base station decides whether to retransmit a data block based on the fed-back uplink feedback signalings.
    • 本发明提供一种MBMS(Multimedia Broadcast / Multicast Service,多媒体广播/组播业务)中的数据重传方法,包括:基站向移动台分配上行时间频率资源块的步骤; 移动站在所分配的上行链路时频资源块上向基站反馈关于接收的下行MBMS业务数据的上行反馈信号的步骤,其中相对于同一下行MBMS业务的上行链路反馈信号 数据组合在同一个上行时间频率资源中,相对于不同的下行链路MBMS服务数据的上行链路反馈信号被多路复用在一个上行链路时频资源块中; 基站基于反馈上行链路反馈信号来决定是否重传数据块的步骤。
    • 7. 发明授权
    • Method and system for data retransmission in MBMS
    • MBMS中数据重传的方法和系统
    • US08224343B2
    • 2012-07-17
    • US12665842
    • 2007-06-22
    • Yonggang WangZhongji HuHua ChaoYu Chen
    • Yonggang WangZhongji HuHua ChaoYu Chen
    • H04Q7/20
    • H04L1/1867H04L1/1692H04L1/1854H04L1/1861H04L2001/0093H04W72/005H04W72/0446H04W72/0453
    • The present invention provides a method of data retransmission in MBMS (Multimedia Broadcast/Multicast Service), comprising: a step in which a base station allocates an uplink time-frequency resource block to mobile stations; a step in which the mobile stations feed back uplink feedback signalings with respect to the received downlink MBMS service data to the base station on the allocated uplink time-frequency resource block, wherein the uplink feedback signalings with respect to one and the same downlink MBMS service data are combined in one and the same uplink time-frequency resource, and the uplink feedback signalings with respect to different downlink MBMS service data are multiplexed in one uplink time-frequency resource block; a step in which the base station decides whether to retransmit a data block based on the fed-back uplink feedback signalings.
    • 本发明提供一种MBMS(Multimedia Broadcast / Multicast Service,多媒体广播/组播业务)中的数据重传方法,包括:基站向移动台分配上行时间频率资源块的步骤; 移动站在所分配的上行链路时频资源块上向基站反馈关于接收的下行MBMS业务数据的上行反馈信号的步骤,其中相对于同一下行MBMS业务的上行链路反馈信号 数据组合在同一个上行时间频率资源中,相对于不同的下行链路MBMS服务数据的上行链路反馈信号被多路复用在一个上行链路时频资源块中; 基站基于反馈上行链路反馈信号来决定是否重传数据块的步骤。
    • 9. 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。