公开(公告)号：EP3145231A4

公开(公告)日：2017-06-21

申请号：EP14893232

申请日：2014-12-30

申请人： HUAWEI TECH CO LTD

发明人： ZHU SONG ,  YU ZHIQIN ,  LI ZHENYU ,  ZHANG WEILIANG

IPC分类号： H04W8/24 ,  H04L1/00 ,  H04L5/00 ,  H04L27/00

CPC分类号： H04W72/1268 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/0064 ,  H04L27/0012 ,  H04W4/005 ,  H04W8/24 ,  H04W72/1289 ,  H04W84/042

摘要： Embodiments of the present invention disclose a data transmission method, a base station, and user equipment. The method in the embodiments of the present invention includes: receiving, by a base station, a first target sequence and uplink data that are sent by user equipment; determining, by the base station according to a first mapping relationship, a first target uplink sending parameter corresponding to the first target sequence, where the first mapping relationship is used to indicate a correspondence between an uplink sending parameter and a sequence; and demodulating and decoding, by the base station, the uplink data according to the first target uplink sending parameter. According to the embodiments of the present invention, a base station only needs to receive a first target sequence determined by user equipment, without measuring current channel quality, to determine, according to a first mapping relationship, an uplink sending parameter corresponding to the first target sequence, so that channel estimation can be performed, and uplink data can be demodulated and decoded. In this way, network overheads in a data transmission process are reduced, and data transmission efficiency is effectively improved.

摘要翻译： 本发明的实施例公开了一种数据传输方法，基站和用户设备。 本发明实施例的方法包括：基站接收用户设备发送的第一目标序列和上行数据; 所述基站根据第一映射关系确定所述第一目标序列对应的第一目标上行发送参数，所述第一映射关系用于指示上行发送参数与序列的对应关系; 所述基站根据所述第一目标上行发送参数对所述上行数据进行解调和解码。 根据本发明的实施例，基站只需要接收用户设备确定的第一目标序列，而不测量当前的信道质量，根据第一映射关系确定第一目标对应的上行发送参数 序列，从而可以执行信道估计，并且上行链路数据可以被解调和解码。 这样可以减少数据传输过程中的网络开销，有效提高数据传输效率。

公开(公告)号：EP3046279A4

公开(公告)日：2016-09-07

申请号：EP13894339

申请日：2013-09-30

申请人： HUAWEI TECH CO LTD

发明人： YU ZHIQIN ,  ZHANG WEILIANG

IPC分类号： H04J3/06 ,  H04W56/00

CPC分类号： H04W56/0015 ,  H04W56/001 ,  H04W56/002 ,  H04W72/0413 ,  H04W76/023 ,  H04W76/048

摘要： Embodiments of the present invention provide a synchronization method and apparatus, relate to the communications field, and can support synchronization without network coverage between a DS-UE and a network-side device. The method includes: acquiting, by the DS-UE, a first timing offset, where the first timing offset is a difference between a start time point of receiving data by the DS-UE and a start time point of sending data by a DM-UE, or is a difference between a start time point of sending data by the DS-UE and a start time point of receiving data by a DM-UE, the start time point of sending data by the DM-UE is a start time point of sending data after the DM-UE is synchronized with a network-side device, and the start time point of receiving data by the DM-UE is a start time point of receiving data after the DM-UE is synchronized with the network-side device; and adjusting, by the DS-UE according to the first timing offset, the start time point of receiving data by the DS-UE or the start time point of sending data by the DS-UE, so as to synchronize with the DM-UE and the network-side device.

公开(公告)号：EP3060017A4

公开(公告)日：2016-10-26

申请号：EP13895594

申请日：2013-10-18

申请人： HUAWEI TECH CO LTD

发明人： YU ZHIQIN ,  ZHANG WEILIANG

IPC分类号： H04W56/00

CPC分类号： H04W56/0015 ,  H04W4/005 ,  H04W56/0025

摘要： A method and a device for initial synchronization between D2D terminals are used to implement initial synchronization between the D2D terminals. In the present invention, a D2D master terminal measures a time-frequency resource set used to transmit a synchronization signal, and reports a measurement result to a network device; the D2D master terminal receives a synchronization resource that is allocated by the network device to the D2D master terminal according to the measurement result reported by the D2D master terminal; and the D2D master terminal sends the synchronization signal according to the synchronization resource allocated to the D2D master terminal.

摘要翻译： 使用D2D端子之间的初始同步的方法和装置来实现D2D端子之间的初始同步。 在本发明中，D2D主终端测量用于发送同步信号的时间 - 频率资源集合，并将测量结果报告给网络设备; D2D主终端根据D2D主终端报告的测量结果，接收由网络设备分配给D2D主终端的同步资源; 并且D2D主终端根据分配给D2D主终端的同步资源发送同步信号。

公开(公告)号：EP3113377A4

公开(公告)日：2017-03-29

申请号：EP14886461

申请日：2014-03-17

申请人： HUAWEI TECH CO LTD

发明人： WU YILING ,  JI TONG ,  YU ZHIQIN ,  ZHANG WEILIANG

IPC分类号： H04L27/26

CPC分类号： H04L27/2692 ,  H04L27/2657

摘要： The present invention provides a synchronization signal receiving method, including: receiving, by a receive end, a synchronization sequence sent by a transmit end, where the synchronization sequence includes a carrier frequency synchronization sequence, the carrier frequency synchronization sequence is zc ( m )= e ± jÀm ( m +1+2 q )/ L , m = 0,1,..., L - 1, q ˆˆ Z , L indicates a length of the carrier frequency synchronization sequence, q indicates a parameter of the carrier frequency synchronization sequence, Z indicates an integer set, e ± jÀm ( m +1+2 q )/ L indicates the (± jÀm ( m +1+2 q )/ L ) th power of e , and e is a natural constant; and performing, by the receive end, frequency offset estimation according to the received synchronization sequence, to obtain a frequency offset estimation value. With the technical solutions of embodiments of the present invention, accuracy of frequency offset estimation can be improved.

摘要翻译： 本发明提供一种同步信号接收方法，包括：由接收端接收由发送端发送的同步序列，其中同步序列包括载波频率同步序列，载波频率同步序列为zc（m）= e±j〜m（m + 1 + 2 q）/ L，m = 0,1，...，L-1，q Z，L表示载波频率同步序列的长度，q表示载波的参数 频率同步序列，Z表示整数集，e±j〜m（m + 1 + 2 q）/ L表示e的（±j〜m（m + 1 + 2 q）/ L）倍，e为自然常数 ; 并且根据接收到的同步序列执行接收端的频率偏移估计，以获得频率偏移估计值。 利用本发明的实施例的技术方案，可以提高频率偏移估计的精度。

公开(公告)号：EP3079317A4

公开(公告)日：2016-12-28

申请号：EP13900083

申请日：2013-12-27

申请人： HUAWEI TECH CO LTD

发明人： LI ZHENYU ,  ZHU SONG ,  GUO XIAOLONG ,  YU ZHIQIN

IPC分类号： H04L12/911 ,  H04L12/64 ,  H04W4/02 ,  H04W4/06 ,  H04W8/08 ,  H04W28/20 ,  H04W56/00 ,  H04W64/00

CPC分类号： H04W28/20 ,  H04L12/6418 ,  H04W4/02 ,  H04W4/06 ,  H04W8/08 ,  H04W28/0278 ,  H04W56/001 ,  H04W64/00 ,  H04W72/005 ,  H04W72/048 ,  H04W74/0833 ,  H04W84/042 ,  H04W88/08

摘要： Embodiments of the present invention provide a broadcast control bandwidth allocation and data transceiving method and an apparatus, which relate to the communications field, so as to change a conventional common mode of a channel into a mode in which time-frequency multiplexing is performed on a channel according to a real-time use status of user equipment, which greatly improves utilization efficiency of the original channel. The method includes: acquiring location information and channel distribution information that are of current user equipment; preprocessing a time-frequency resource of a channel according to the location information and the channel distribution information that are of the current user equipment; updating bandwidth allocation information according to the preset bandwidth and quantities of each data channel and each control channel and the preset quantities of repetitions corresponding to each data channel and each control channel; and broadcasting broadcast information to the user equipment by using a broadcast channel, where the broadcast information in the broadcast channel includes at least the bandwidth allocation information, so that the user equipment determines, according to the broadcast information, a control channel and a data channel that are of first quantities of repetitions and are required for transferring data.