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    • 3. 发明申请
    • METHODS AND APPARATUSES FOR PERFORMING A HANDOVER IN A HIGH-SPEED TRAFFIC ENVIRONMENT
    • 在高速交通环境中执行切换的方法和装置
    • WO2016023214A1
    • 2016-02-18
    • PCT/CN2014/084425
    • 2014-08-14
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)WANG, Hai
    • WANG, HaiFAN, RuiMIAO, Qingyu
    • H04W36/32
    • H04W36/0005H04W24/10H04W36/22H04W36/30H04W84/005
    • Methods and apparatuses for performing a group handover in a high-speed traffic environment are provided. The method comprises receiving a measurement report from at least one terminal device in the high-speed traffic environment. The method also comprises determining whether the at least one terminal device is a member of a group based on group information indicating, as members of the group, a plurality of terminal devices. The method further comprises transmitting, upon determining that the at least one terminal device is the member of the group, a plurality of handover requests each of which corresponds to one terminal device in the group to a target network node for the handover of each terminal device in the group to the target network node. With the methods and apparatuses, the handover successful rate in the high-speed traffic environment may be improved and signaling overhead arising from the handover could be decreased.
    • 提供了用于在高速交通环境中执行组切换的方法和装置。 该方法包括从高速业务环境中的至少一个终端设备接收测量报告。 该方法还包括基于指示作为组的成员的多个终端设备的组信息来确定至少一个终端设备是否是组的成员。 该方法还包括:在确定所述至少一个终端设备是所述组的成员时,发送多个切换请求,每个切换请求对应于所述组中的一个终端设备到目标网络节点,用于每个终端设备的切换 在组中到目标网络节点。 利用这些方法和装置,可以提高高速业务环境中的切换成功率,并且可以减少由切换引起的信令开销。
    • 6. 发明申请
    • METHODS AND WIRELESS DEVICES FOR ENABLING D2D COMMUNICATIONS IN A WIRELESS NETWORK
    • 在无线网络中实现D2D通信的方法和无线设备
    • WO2015065263A1
    • 2015-05-07
    • PCT/SE2014/051014
    • 2014-09-04
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    • SORRENTINO, StefanoSIOMINA, IanaWÄNSTEDT, StefanMIAO, QingyuZHAO, ZhenshanLU, Qianxi
    • H04W76/02H04W56/00
    • H04W56/002H04W4/70H04W56/0025H04W76/14
    • A first and a second wireless device and a respective method performed thereby for enabling D2D communication there between are provided. The method performed by the first wireless device comprises obtaining (110) a timing reference and a time offset, from a wireless network; and transmitting (120), to the at least one second wireless device, an SA in accordance with the obtained timing reference, the SA comprising the time offset. The method further comprises transmitting (130) data, to the at least one second wireless device, in accordance with an uplink timing, wherein the uplink timing is based on the time offset and the timing reference; and when there is an updated time offset, receiving (140) the updated time offset from the wireless communication network, and transmitting (150) the updated time offset to the second wireless device using a Medium Access Control, MAC, Control Element, CE, of a data channel.
    • 提供了第一和第二无线设备以及由此执行的用于实现其间的D2D通信的相应方法。 由第一无线设备执行的方法包括从无线网络获取(110)定时参考和时间偏移; 以及根据所获得的定时参考,向所述至少一个第二无线设备发送(120)SA,所述SA包括所述时间偏移。 所述方法还包括根据上行链路定时向所述至少一个第二无线设备发送(130)数据,其中所述上行链路定时基于所述时间偏移和所述定时参考; 并且当存在更新的时间偏移时,从所述无线通信网络接收(140)更新的时间偏移量,并且使用媒体访问控制,MAC,控制元素,CE向所述第二无线设备发送(150)所述更新的时间偏移量, 的数据通道。
    • 7. 发明申请
    • METHODS AND APPARATUS FOR DETERMINING D2D TRANSMISSION AND RECEPTION TIMINGS IN MIXED CELLULAR AND D2D NETWORK
    • 用于确定混合细胞和D2D网络中D2D传输和接收时序的方法和装置
    • WO2014194801A1
    • 2014-12-11
    • PCT/CN2014/079051
    • 2014-06-03
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)LU, Qianxi
    • LU, QianxiMIAO, QingyuZHAO, Zhenshan
    • H04W56/00
    • H04W56/0045
    • The present disclosure discloses a method performed by a D2D RX communication device in a mixed cellular and device-to-device (D2D) network for determining D2D transmission timing, a method performed by a D2D TX communication device in a mixed cellular and D2D network for determining D2D reception timing, as well as the D2D RX communication device and D2D TX communication device. The method performed by the D2D RX communication device comprises the step of receiving a synchronization signaling from a D2D transmitting, TX, communication device which is paired with the D2D RX communication device. The method performed by a D2D RX communication device also comprises the step of determining a D2D reception timing reference according to the received synchronization signaling. The method performed by the D2D TX communication device comprises the step of determining a D2D transmission timing reference to be consistent with the D2D TX communication device's UL transmission timing for cellular communications in the mixed cellular and D2D network. The method performed by the D2D TX communication device also comprises the step of transmitting a synchronization signaling to a D2D RX communication device paired with the D2D TX communication device, according to the determined D2D transmission timing reference.
    • 本公开公开了一种由混合蜂窝和设备到设备(D2D)网络中的D2D RX通信设备执行的用于确定D2D传输定时的方法,由混合蜂窝和D2D网络中的D2D TX通信设备执行的方法, 确定D2D接收定时,以及D2D RX通信设备和D2D TX通信设备。 由D2D RX通信设备执行的方法包括从与D2D RX通信设备配对的D2D发送TX通信设备接收同步信令的步骤。 由D2D RX通信设备执行的方法还包括根据接收的同步信令确定D2D接收定时参考的步骤。 由D2D TX通信设备执行的方法包括以下步骤:将D2D传输定时参考确定为与D2D TX通信设备在混合蜂窝和D2D网络中的蜂窝通信的UL传输定时一致。 由D2D TX通信设备执行的方法还包括根据确定的D2D传输定时参考,向与D2D TX通信设备配对的D2D RX通信设备发送同步信令的步骤。
    • 10. 发明申请
    • A WIRELESS DEVICE, A NETWORK NODE AND METHODS THEREIN FOR TRANSMITTING CONTROL INFORMATION IN A D2D COMMUNICATION
    • 无线设备,网络节点及其在D2D通信中发送控制信息的方法
    • WO2014126514A1
    • 2014-08-21
    • PCT/SE2013/050128
    • 2013-02-15
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    • ZHAO, ZhenshanLU, QianxiMIAO, Qingyu
    • H04L5/00
    • H04L5/0048H04L1/0028H04L1/1825H04L5/0007H04L5/003H04L5/0053H04L5/0055H04W72/0406H04W74/004H04W76/14H04W76/23
    • A method performed by a first wireless device (121) for transmitting control information (400) in a D2D communication with a second wireless device (122) in a wireless telecommunications network (100) is provided. The first wireless device (121) multiplexes coded modulation symbols of the control information (400) with coded modulation symbols of data information (300) on Resources Elements, REs, in a Orthogonal Frequency Division Multiplexing, OFDM, time-frequency grid of a Dedicated Shared CHannel, DSCH, in the D2D communication, wherein the control information (400) comprises Transmission Format Command, TFC, information (410) and Uplink Control Information, UCI (420, 430, 440). Then, it transmits the coded modulation symbols of the control information (400) multiplexed with the coded modulation symbols of the data information (300) on REs in the OFDM time-frequency grid of the DSCH in the D2D communication to the second wireless device (122). A first wireless device (121), a network node (110) and a method performed by the network node (110) are also provided.
    • 提供了一种由无线电信网络(100)中的与第二无线设备(122)的D2D通信中发送控制信息(400)的第一无线设备(121)执行的方法。 第一无线设备(121)在专用的正交频分复用OFDM,时频网格中的资源元素RE上的数据信息(300)的编码调制符号复用控制信息(400)的编码调制符号 共享信道DSCH,其中所述控制信息(400)包括传输格式命令,TFC,信息(410)和上行链路控制信息UCI(420,430,440)。 然后,将与D2D通信中的DSCH的OFDM时频网格中的数据信息(300)的编码调制符号进行复用的编码调制符号发送到第二无线装置( 122)。 还提供了第一无线设备(121),网络节点(110)和由网络节点(110)执行的方法。