公开(公告)号：US20180139682A1

公开(公告)日：2018-05-17

申请号：US15568350

申请日：2015-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai XU ,  Chao LI

IPC: H04W40/22 ,  H04W40/12

CPC classification number: H04W40/22 ,  H04B7/2606 ,  H04W40/12 ,  H04W88/04

Abstract: The present invention discloses a method and an apparatus for selecting a relay in D2D communication. The method includes: determining, by a relay selection device, link quality of a first link of each candidate relay UE in a candidate relay UE list, where the candidate relay UE list includes at least one candidate relay UE, and the first link of each candidate relay UE is a radio link between each candidate relay UE and a base station; and determining target relay UE from the candidate relay UE list according to the link quality of the first link of each candidate relay UE in the candidate relay UE list, where the target relay UE is used for relaying data transmitted between first UE and the base station.

公开(公告)号：US20180007726A1

公开(公告)日：2018-01-04

申请号：US15707420

申请日：2017-09-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chao LI ,  Xingwei ZHANG

IPC: H04W76/02 ,  H04W48/16 ,  H04W84/18 ,  H04L1/00 ,  H04W28/18 ,  H04L29/06 ,  H04W4/00

CPC classification number: H04W76/14 ,  H04L1/004 ,  H04L69/24 ,  H04W4/70 ,  H04W28/18 ,  H04W48/16 ,  H04W76/10 ,  H04W76/11 ,  H04W84/18

Abstract: Embodiments of the present disclosure provide a device to device (D2D) communication method and apparatus, to resolve at least a problem of a low success rate of discovery between user equipments in the prior art. The method includes: determining, by a first user equipment (UE), first signaling to be sent, where the first signaling includes one or a combination of the following information: a transmission probability, a quantity of retransmission times, a transmission period, a type of a cyclic prefix (CP), a transmit power, a current quantity of hops, a quantity of antenna ports, a transmission mode, a bandwidth of a D2D link, a D2D link frame number, time division duplexing (TDD) uplink and downlink configuration information, or information indicating whether the first UE is within a network; and sending, by the first UE, the first signaling to second UE using the D2D link.

公开(公告)号：US20170238313A1

公开(公告)日：2017-08-17

申请号：US15502153

申请日：2014-08-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian WANG ,  Chao LI ,  Xingwei ZHANG

IPC: H04W72/04

Abstract: A method includes: determining, by a first device, a frequency hopping parameter and a quantity of retransmission times of to-be-transmitted data, wherein the frequency hopping parameter comprises an initial frequency hopping location, a bandwidth of the to-be-transmitted data, a frequency hopping offset, and a total frequency hopping bandwidth; determining, by the first device, a first start location of the to-be-transmitted data according to the quantity of retransmission times of the to-be-transmitted data and the frequency hopping parameter; and sending, by the first device, the to-be-transmitted data to a second device according to the first start location and the bandwidth of the to-be-transmitted data.

公开(公告)号：US20170055251A1

公开(公告)日：2017-02-23

申请号：US15346510

申请日：2016-11-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingwei ZHANG ,  Chao LI

IPC: H04W72/04 ,  H04W72/12

CPC classification number: H04W72/048 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1215

Abstract: Embodiments of the present disclosure provide a resource scheduling method, apparatus, and system. The embodiments of the present disclosure relate to the field of communications technologies and are used to resolve a problem of resource scheduling in Device-to-Device (D2D) communication. The method includes: sending, by a first node, first control signaling to a second node, where the first control signaling includes information about a resource for second control signaling transmission and information about a resource for data transmission; and receiving, by the second node, the first control signaling sent by the first node, and sending second control signaling to a third node by using the resource for the second control signaling transmission, and sending data to the third node by using the resource for the data transmission. The resource scheduling method, apparatus, and system can be applied to a data transmission device requiring relatively high delay performance.

Abstract translation: 本公开的实施例提供资源调度方法，装置和系统。 本公开的实施例涉及通信技术领域，并且用于解决设备到设备（D2D）通信中的资源调度问题。 该方法包括：由第一节点向第二节点发送第一控制信令，其中第一控制信令包括关于用于第二控制信令传输的资源的信息和关于数据传输的资源的信息; 以及由所述第二节点接收由所述第一节点发送的所述第一控制信令，并且通过使用所述用于所述第二控制信令传输的资源向第三节点发送第二控制信令，并且通过使用所述资源发送数据给所述第三节点 数据传输。 资源调度方法，装置和系统可以应用于需要较高延迟性能的数据传输装置。

公开(公告)号：US20170048827A1

公开(公告)日：2017-02-16

申请号：US15338963

申请日：2016-10-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xingwei ZHANG ,  Chao LI

IPC: H04W72/04 ,  H04W4/00 ,  H04W76/02

CPC classification number: H04W72/04 ,  H04W4/70 ,  H04W74/0825 ,  H04W76/14

Abstract: The present invention discloses a resource reuse apparatus, user equipment, and a resource reuse method. The method includes: monitoring, by first user equipment, idle resources so as to obtain a first idle resource set; claiming, in a first cycle, to use a first resource, where the first resource is a resource in the first idle resource set; determining whether the first resource exists in a first claimed resource set, where the first claimed resource set is a set of resources that are claimed to be used by another user equipment except the first user equipment; and if the first resource exists in the first claimed resource set, claiming, in a second cycle, to use a second resource, where the second resource is a resource, in the first idle resource set, that is different from the first resource; or reclaiming a resource after at least one cycle following the first cycle.

Abstract translation: 本发明公开了一种资源再利用装置，用户装置和资源再利用方法。 该方法包括：通过第一用户设备监视空闲资源，以获得第一空闲资源集; 声称在第一周期中使用第一资源，其中第一资源是第一空闲资源集合中的资源; 确定所述第一资源是否存在于第一被请求资源集合中，其中所述第一被请求资源集合是要求由除第一用户设备之外的另一个用户设备使用的一组资源; 并且如果所述第一资源存在于所述第一被请求资源集合中，则在第二周期中声明在所述第一空闲资源集合中使用与所述第一资源不同的第二资源（其中所述第二资源是资源）; 或在第一个周期后至少一个周期之后回收资源。

公开(公告)号：US20160021602A1

公开(公告)日：2016-01-21

申请号：US14868356

申请日：2015-09-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chao LI

IPC: H04W48/16 ,  H04W24/10 ,  H04L12/24

CPC classification number: H04W48/16 ,  H04L41/0803 ,  H04W24/10 ,  H04W48/12 ,  H04W84/045

Abstract: The present invention provides a signal sending method and device. The method includes: sending a first discovery reference signal to first user equipment by using a first transmit power and a first transmit period, where the first discovery reference signal is used by the first user equipment for signal quality measurement; sending a second discovery reference signal to second user equipment by using a second transmit power and a second transmit period, where the second discovery reference signal is used by the second user equipment for signal quality measurement; and receiving a first signal measurement result of the first user equipment for the first discovery reference signal, and receiving a second signal measurement result of the second user equipment for the second discovery reference signal.

Abstract translation: 本发明提供一种信号发送方法和装置。 该方法包括：通过使用第一发射功率和第一发射周期向第一用户设备发送第一发现参考信号，其中第一发现参考信号被第一用户设备用于信号质量测量; 通过使用第二发射功率和第二发射周期向第二用户设备发送第二发现参考信号，其中第二发现参考信号由第二用户设备用于信号质量测量; 以及接收用于所述第一发现参考信号的所述第一用户设备的第一信号测量结果，以及接收所述第二发现参考信号的所述第二用户设备的第二信号测量结果。