WO2014100932A1

WO2014100932A1 - Resource competition method, and method and device for using resource competition

Info

Publication number: WO2014100932A1
Application number: PCT/CN2012/087276
Authority: WO
Inventors: 马洁
Original assignee: 华为技术有限公司
Priority date: 2012-12-24
Filing date: 2012-12-24
Publication date: 2014-07-03
Also published as: CN103229582A; CN103229582B

Abstract

The present invention provides a resource competition method and a user equipment (UE), and a method and a device for using resource competition, which solve the problem of resource competition. The resource competition method comprises: selecting a sending opportunity frame comprising a monitoring-preempting subframe and a transmission subframe, wherein the monitoring-preempting subframe comprises a plurality of preemption time slots; determining that selected discovery resources are exclusive discovery resources through analysis of the states of different UEs in the plurality of preemption time slots of the monitoring-preempting subframe; and sending a neighbor identity indication code on the exclusive discovery resources through the transmission subframe. The method for using resource competition comprises: receiving a sending opportunity frame sent by a UE; determining an occupancy state or an idle state of the discovery resources according to the sending opportunity frame; and scheduling the idle discovery resources. The technical solution solves the problem that collision frequency is too high in resource competition, so that the transmission times and power consumption of the UE are reduced.

Description

资源竟争的方法、利用资源竟争的方法及其装置技术领域 Method for resource competition, method for utilizing resource competition and device thereof

本发明涉及无线通信领域，并且更具体地，涉及资源竟争的方法、利用资源竟争的方法及其装置。背景技术 The present invention relates to the field of wireless communications, and more particularly to a method of resource competition, a method of utilizing resource competition, and an apparatus therefor. Background technique

邻近发现是一种利用两个或者多个终端设备在物理位置上的相互邻近的特性，在终端设备之间进行通信的技术。邻近发现技术作为构建未来本地网络的重要组成部分具有 4艮多的应用场景，例如：在社交网络应用当中，用于发现附近的朋友或者有相同兴趣爱好的人；在广告应用当中，看看附近有哪些促销信息；在基于位置的服务当中，查询附近的餐馆等。 Proximity discovery is a technique of communicating between terminal devices by utilizing characteristics of mutual proximity of two or more terminal devices at physical locations. Proximity discovery technology has more than 4 application scenarios as an important part of building a future local network, for example: in social networking applications, to find nearby friends or people with similar interests; in advertising applications, look around What are the promotional information; In the location-based service, check nearby restaurants.

邻近发现技术中终端设备之间首先需要通过交互领近身份指示码（英文为 Device to Device code, 缩写为 D2Dcode ) 才能进行后续应用。然而，在一个无中心控制节点的网络中，各网络节点都是平等的，节点占用资源使用的是 CSMA/CD (英文为 Carrier Sense Multiple Access/Collision Detect, 中文为载听多路访问 /沖突检测）的方式。该技术的原理是：节点在发送数据前先侦听信道是否空闲，若空闲则立即发送数据；在发送数据时，边发送边继续侦听；若侦听到沖突，则立即停止发送数据；等待一段随机时间，再重新尝试。 In the proximity discovery technology, the terminal device needs to first access the identity indicator (English Device to Device code, abbreviated as D2Dcode) for subsequent application. However, in a network without a central control node, each network node is equal, and the nodes occupy resources using CSMA/CD (English is Carrier Sense Multiple Access/Collision Detect, Chinese is for multi-access/collision detection). )The way. The principle of the technology is: the node listens to whether the channel is idle before sending data, and immediately sends data if it is idle; when transmitting data, it continues to listen while transmitting; if it hears the conflict, it stops sending data immediately; waiting A random time, try again.

网络节点在侦听之后仍然不能避免下一时刻获取的发送数据的资源是独占的，而且节点越多、数据越多，碰撞的概率就越大，需要回退等待进行重发。多次重发会严重损耗用户设备的功耗。由此，需要一种解决资源竟争的方法，节省作为终端节点的用户设备的功耗。发明内容 After the network node listens, it still cannot avoid the resources of the transmitted data acquired at the next moment is exclusive, and the more nodes and the more data, the greater the probability of collision, and the need to retreat for retransmission. Multiple retransmissions can severely deplete the power consumption of the user equipment. Thus, there is a need for a method of resolving resource competition that saves power consumption of user equipment as a terminal node. Summary of the invention

有鉴于此，本发明实施例提供一种资源竟争的方法和装置，以解决资源竟争的问题，此外还提供了利用资源竟争的方法和装置。 In view of this, the embodiments of the present invention provide a method and apparatus for resource competition to solve the problem of resource competition, and also provide a method and apparatus for utilizing resource competition.

第一方面，提供了一种资源竟争的方法，选择发送机会帧，其中发送机会帧包括监听-抢占子帧和传输子帧，监听-抢占子帧包括多个抢占时隙；通过分析监听-抢占子帧的多个抢占时隙上不同用户设备的状态，确定选择的发现资源为独占的发现资源；通过传输子帧在独占的发现资源上发送邻近身份指示码。 In a first aspect, a method for resource contention is provided, where a transmission opportunity frame is selected, where the transmission opportunity frame includes a interception-preemption subframe and a transmission subframe, and the interception-preemption subframe includes multiple preemption slots; Preempting the state of different user equipments on multiple preemption slots of a subframe, determining the selected The discovery resource is an exclusive discovery resource; the neighbor identity indicator is sent on the exclusive discovery resource by transmitting the subframe.

在第一种可能的实现方式中，通过选择的抢占资源，在多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列，在多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE没有选择相同的抢占资源，则确定选择的抢占资源对应的发现资源为独占的发现资源，其中抢占资源与发现资源存在——对应关系。 In a first possible implementation manner, a preemption sequence is sent on a preemption time slot of at least one of the plurality of preemption time slots, and at least one of the plurality of preemption time slots is in a listening state by using the selected preemption resource. If the preemption time slot is monitored, the other preemption resources are not selected, and the discovery resource corresponding to the selected preemption resource is determined to be an exclusive discovery resource, where the preemptive resource and the discovery resource exist.

结合第一方面的第一种可能的实现方式，在第二种可能的实现方式中，在多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE选择了结合第一方面的第一种或第二种可能的实现方式，在第三种可能的实现方式中，通过选择的抢占资源，在多个抢占时隙中的至少一个发送状态的抢占时隙上以使用基站能够监听到的功率发送抢占序列。 With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, listening to other UEs in a preemption time slot of at least one of the plurality of preemption time slots is selected to combine the first aspect The first or the second possible implementation manner, in a third possible implementation manner, by using the selected preemption resource, the base station can be used on the preemption time slot of at least one of the multiple preemption time slots The monitored power sends a preemption sequence.

结合第一方面或第一方面的上述任一项可能的实现方式，在第四种可能的实现方式中，抢占时隙的个数，为根据 k和 UE的选择监听或者发送的概率联合确定的，其中 k为根据参数 λ和门限百分比 Α确定的最多允许选择相同发现资源的 UE个数，门限百分比 A为一个发现资源上有多个 UE的概率，参数 λ为竟争发现资源的 UE个数和发现资源个数的比值。 With reference to the first aspect or any one of the foregoing possible implementation manners of the foregoing aspect, in a fourth possible implementation manner, the number of preempted time slots is jointly determined according to a probability that k and the UE are selected to be monitored or sent. Where k is the number of UEs that are allowed to select the same discovery resource according to the parameter λ and the threshold percentage ,, the threshold percentage A is the probability of having multiple UEs on one discovery resource, and the parameter λ is the number of UEs competing for the discovery resource. And the ratio of the number of discovered resources.

结合第一方面的第四种可能的实现方式，在第五种可能的实现方式中，抢占时隙个数为 k个 UE碰撞解决至 2个 UE碰撞解决所需的时隙个数的总和， k > 2。 With the fourth possible implementation of the first aspect, in a fifth possible implementation, the number of preempted slots is the sum of the number of slots required for k UE collision resolution to 2 UE collision resolution, k > 2.

结合第一方面或第一方面的上述任一项可能的实现方式，在第六种可能的实现方式中，监听 -抢占子帧在传输子帧前，且监听-抢占子帧和传输子帧之间还有蜂窝子帧间隔。 With reference to the first aspect or any one of the foregoing possible implementation manners of the foregoing aspect, in a sixth possible implementation manner, the monitoring-preempting subframe is before the transmission subframe, and the monitoring-preempting subframe and the transmitting subframe are There is also a cellular subframe interval.

结合第一方面、第一方面的第一至第五种可能的实现方式的任一项，在第七种可能的实现方式中，监听 -抢占子帧在传输子帧前，监听 -抢占子帧和传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过监听-抢占子帧的第一个抢占时隙发送一次。 With reference to the first aspect, any one of the first to fifth possible implementation manners of the first aspect, in the seventh possible implementation manner, the monitoring-preempting subframe is in front of the transmission subframe, and the monitoring-preempting subframe is There is no cell subframe interval between the transmission subframe and the preemption slot of all UEs. The preemption sequence of all UEs is sent once through the first preemption slot of the snoop-preemption subframe.

第二方面，提供了一种利用资源竟争的方法，包括：接收 UE发送的发送机会帧，其中发送机会帧包括监听-抢占子帧和传输子帧，监听-抢占子帧包括多个抢占时隙；根据发送机会帧，确定发现资源的占用状态或空闲状态；调度空闲的发现资源。 The second aspect provides a method for utilizing resource contention, including: receiving a transmission opportunity frame sent by a UE, where the transmission opportunity frame includes a interception-preemption subframe and a transmission subframe, and the interception-preemption subframe includes multiple preemption a gap; determining an occupied state or an idle state of the discovered resource according to the transmission opportunity frame; Dispatched idle discovery resources.

在第一种可能的实现方式中，接收 UE通过选择的抢占资源，在发送机会帧的监听-抢占子帧的抢占时隙上发送的抢占序列；根据发送机会帧，确定发现资源的占用状态或空闲状态包括：确定选择的抢占资源对应的发现资源为占用状态，其他的发现资源为空闲状态，抢占资源与发现资源存在—— 对应关系。 In a first possible implementation, the receiving UE sends a preemption sequence on the preemption time slot of the interception-preemption subframe of the transmission opportunity frame by using the selected preemption resource; determining the occupation status of the discovery resource according to the transmission opportunity frame or The idle state includes: determining that the discovered resource corresponding to the selected preempted resource is in an occupied state, the other discovered resources are in an idle state, and the preempted resource and the discovered resource exist in a corresponding relationship.

结合第二方面的第一种可能的实现方式，在第二种可能的实现方式中，监听-抢占子帧在传输子帧前，监听-抢占子帧和传输子帧之间还有蜂窝子帧间隔。 With reference to the first possible implementation manner of the second aspect, in the second possible implementation manner, the interception-preemption subframe has a cellular subframe before the transmission-preemption subframe and the transmission-preemption subframe and the transmission subframe. interval.

结合第二方面、第二方面的第一种可能的实现方式中任一项，在第三种可能的实现方式中，监听 -抢占子帧在传输子帧前，监听 -抢占子帧和传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过监听-抢占子帧的第一个抢占时隙发送一次。 With reference to the second aspect, any one of the first possible implementation manners of the second aspect, in a third possible implementation manner, the monitoring-preempting subframe is before the transmitting subframe, and the monitoring-preempting subframe and the transmitting sub-frame There is no cell subframe interval between frames, and the preemption sequence of all UEs is sent once through the first preemption slot of the snoop-preemption subframe.

第三方面，提供了一种用户设备，包括选择单元、确定单元和发送单元：选择单元，用于选择发送机会帧，其中发送机会帧包括监听-抢占子帧和传输子帧，监听-抢占子帧包括多个抢占时隙；确定单元，用于通过分析监听- 抢占子帧的多个抢占时隙上不同用户设备的状态，确定所选择的发现资源为独占的发现资源；发送单元，用于通过传输子帧在独占的发现资源上发送邻近身份指示码。 A third aspect provides a user equipment, including a selecting unit, a determining unit, and a sending unit: a selecting unit, configured to select a sending opportunity frame, where the sending opportunity frame includes a listening-preempting subframe and a transmitting subframe, and the monitoring-preempting sub- The frame includes a plurality of preemption slots; the determining unit is configured to determine, by analyzing the state of different user equipments on the preemption slots of the preemption subframe, the selected discovery resource is an exclusive discovery resource; The neighbor identity indicator is transmitted on the exclusive discovery resource by transmitting the subframe.

在第一种可能的实现方式中，用户设备还包括监听单元：发送单元具体用于通过选择的抢占资源，在多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列，且监听单元具体用于在多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE有没有选择相同的抢占资源，确定单元具体用于监听单元在多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE没有选择相同的抢占资源时，根据抢占资源与发现资源存在的一一对应关系，则将选择的抢占资源对应的发现资源确定为独占的发现资源。 In a first possible implementation, the user equipment further includes: a sending unit, where: the sending unit is configured to send, by using the selected preempting resource, a preemption sequence on a preempting time slot of at least one of the plurality of preempting time slots, and The monitoring unit is configured to monitor, on the preemption time slot of the at least one of the plurality of preemption time slots, whether the other UE has selected the same preemption resource, and the determining unit is specifically configured to: at least the listening unit in the multiple preemption time slots When the preemptive time slot of the listening state is monitored, the other resources are not selected by the other preemptive resources. According to the one-to-one correspondence between the preempted resources and the discovered resources, the selected resources corresponding to the preempted resources are determined as exclusive discovery resources.

结合第三方面，在第二种可能的实现方式中，用户设备还包括控制单元，控制单元用于在监听单元在多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE没有选择相同的抢占资源时，控制发送单元不再在后续的发送状态的抢占时隙上发送抢占序列。 With reference to the third aspect, in a second possible implementation manner, the user equipment further includes a control unit, where the control unit is configured to monitor the other UEs in the preemption time slot of the listening unit in at least one of the plurality of preemption slots When the same preemption resource is not selected, the control sending unit does not send the preemption sequence on the preemption time slot of the subsequent transmission state.

结合第三方面的第一种或第二种可能的实现方式，在第三种可能的实现方式中，发送单元具体用于通过选择的抢占资源，在多个抢占时隙中的至少一个发送状态的抢占时隙上以使用基站能够监听到的功率发送抢占序列。 In conjunction with the first or second possible implementation of the third aspect, in a third possible implementation In the mode, the sending unit is configured to send, by using the selected preemption resource, a preemption sequence on the preemption time slot of the at least one of the plurality of preemption time slots to use the power that the base station can monitor.

结合第三方面的第一种或第二种可能的实现方式，在第四种可能的实现方式中，选择单元具体用于选择以下的发送机会帧：发送机会帧中抢占时隙的个数，是为根据 k和 UE的选择监听或者发送的概率联合确定的，其中 k 为根据参数 λ和门限百分比 Α确定的最多允许选择相同发现资源的 UE个数，门限百分比 A为一个发现资源上有多个 UE的概率，参数 λ为竟争发现资源的 UE个数和发现资源个数的比值。 With reference to the first or second possible implementation manner of the third aspect, in a fourth possible implementation manner, the selecting unit is specifically configured to select the following transmission opportunity frame: the number of preempted time slots in the transmission opportunity frame, It is determined jointly for the probability of listening or transmitting according to the selection of k and the UE, where k is the number of UEs that are allowed to select the same discovery resource according to the parameter λ and the threshold percentage ,, and the threshold percentage A is more than one discovery resource. The probability of each UE, the parameter λ is the ratio of the number of UEs that compete for the discovery resource and the number of discovered resources.

结合第三方面的第四种可能的实现方式，在第五种可能的实现方式中，选择单元具体用于选择以下的发送机会帧：发送机会帧中抢占时隙个数为 k 个 UE碰撞解决至 2个 UE碰撞解决所需的时隙个数的总和， k > 2。 With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation, the selecting unit is specifically configured to select the following sending opportunity frame: the number of preempting slots in the transmission opportunity frame is k UE collision resolution The sum of the number of slots required to resolve to 2 UE collisions, k > 2.

结合第三方面或第三方面的上述任一项可能的实现方式，在第六种可能的实现方式中，选择单元具体用于选择以下格式的发送机会帧：发送机会帧中，监听 -抢占子帧在传输子帧前，且监听 -抢占子帧和传输子帧之间还有蜂窝子帧间隔。 With reference to the third aspect or any one of the foregoing possible implementation manners of the third aspect, in a sixth possible implementation, the selecting unit is specifically configured to select a transmission opportunity frame in the following format: in the transmission opportunity frame, the monitoring-preempting sub- The frame is before the transmission subframe, and there is also a cellular subframe interval between the interception-preemption subframe and the transmission subframe.

结合第三方面、第三方面的第一至第五种可能的实现方式的任一项，在第七种可能的实现方式中，选择单元具体用于选择以下格式的发送机会帧：发送机会帧中，监听 -抢占子帧在传输子帧前，且监听-抢占子帧和传输子帧之间没有蜂窝子帧间隔，且所有的 UE的抢占序列要通过监听-抢占子帧的第一个抢占时隙发送一次。 With reference to the third aspect, any one of the first to fifth possible implementation manners of the third aspect, in a seventh possible implementation, the selecting unit is specifically configured to select a transmission opportunity frame in the following format: The monitoring-preemption subframe is in front of the transmission subframe, and there is no cellular subframe interval between the interception-preemption subframe and the transmission subframe, and the preemption sequence of all UEs passes through the first preemption of the interception-preemption subframe. The time slot is sent once.

第四方面，提供了一种利用资源竟争的装置，包括接收单元、确定单元和调度单元：接收单元，用于接收 UE发送的发送机会帧，其中发送机会帧包括监听-抢占子帧和传输子帧，监听-抢占子帧包括多个抢占时隙；确定单元，用于根据发送机会帧，确定发现资源的占用状态或空闲状态；调度单元，用于调度空闲的发现资源。 The fourth aspect provides an apparatus for utilizing resource competition, including a receiving unit, a determining unit, and a scheduling unit: a receiving unit, configured to receive a transmission opportunity frame sent by the UE, where the transmission opportunity frame includes a interception-preemption subframe and a transmission The subframe, the snoop-preempted sub-frame includes a plurality of preemption slots, and the determining unit is configured to determine an occupied state or an idle state of the discovered resource according to the transmit opportunity frame, where the scheduling unit is configured to schedule the idle discovery resource.

结合第四方面，在第一种可能的实现方式中，接收单元接收 UE通过选择的抢占资源，在发送机会帧的监听-抢占子帧的抢占时隙上发送的抢占序歹 ij ; 确定单元由于抢占资源与发现资源存在——对应关系，根据选择的抢占资源，确定选择的抢占资源对应的发现资源为占用状态，其他的发现资源为空闲状态。 With reference to the fourth aspect, in a first possible implementation, the receiving unit receives the preemption sequence ij sent by the UE on the preemption time slot of the interception-preemption subframe of the transmission opportunity frame by using the selected preemption resource; The preemptive resource and the discovered resource exist in the corresponding relationship. According to the selected preemptive resource, the discovery resource corresponding to the selected preempted resource is determined to be in an occupied state, and the other discovered resources are in an idle state.

结合第四方面或第四方面的第一种可能的实现方式，在第二种可能的实现方式中，接收单元接收的发送机会帧中，监听 -抢占子帧在传输子帧前，且监听 -抢占子帧和传输子帧之间还有蜂窝子帧间隔。 In combination with the fourth aspect or the first possible implementation of the fourth aspect, in the second possible implementation In the current mode, in the transmission opportunity frame received by the receiving unit, the interception-preemption subframe is before the transmission subframe, and there is also a cellular subframe interval between the interception-preemption subframe and the transmission subframe.

结合第四方面或第四方面的第一种可能的实现方式，在第三种可能的实现方式中，接收单元接收的发送机会帧中，监听 -抢占子帧在传输子帧前，且监听 -抢占子帧和传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过监听-抢占子帧的第一个抢占时隙发送一次。 With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a third possible implementation manner, in the transmission opportunity frame received by the receiving unit, the interception-preemption subframe is before the transmission subframe, and the monitoring is performed. There is no cell subframe interval between the preemption subframe and the transmission subframe, and the preemption sequence of all UEs is sent once through the first preemption slot of the snoop-preemption subframe.

第五方面，提供了一种用户设备，包括处理器、存储器和发送器：存储器，与处理器连接，用于存储处理器执行下述操作所需的指令； A fifth aspect provides a user equipment, including a processor, a memory, and a transmitter: a memory, coupled to the processor, for storing instructions required by the processor to perform the following operations;

处理器，用于选择发送机会帧，其中发送机会帧包括监听 -抢占子帧和传输子帧，监听-抢占子帧包括多个抢占时隙；通过分析监听-抢占子帧的多个抢占时隙上不同用户设备的状态，确定所选择的发现资源为独占的发现资源；发送器，用于通过传输子帧在独占的发现资源上发送邻近身份指示码。 a processor, configured to select a transmission opportunity frame, where the transmission opportunity frame includes a interception-preemption subframe and a transmission subframe, and the interception-preemption subframe includes multiple preemption slots; by analyzing multiple preemption slots of the interception-preemption subframe The status of the different user equipments is determined, and the selected discovery resource is an exclusive discovery resource. The sender is configured to send the proximity identity indicator on the exclusive discovery resource by using the transmission subframe.

在第一种可能的实现方式中，还包括接收器：发送器通过选择的抢占资源，在多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列，且接收器在多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE 没有选择相同的抢占资源，处理器，具体用于根据抢占资源与发现资源存在 ——对应关系，则将选择的抢占资源对应的发现资源确定为独占的发现资源。 In a first possible implementation manner, the receiver further includes: the transmitter sends the preemption sequence on the preemption time slot of the at least one of the multiple preemption time slots by using the selected preemption resource, and the receiver is in multiple The preemptive time slot of the at least one listening state in the preemptive time slot is monitored, and the processor does not select the same preemptive resource. The processor is specifically configured to: according to the preemptive resource and the discovery resource, the corresponding preemptive resource is corresponding to the preemptive resource. The discovery resources are identified as exclusive discovery resources.

结合第五方面的第一种实现方式，在第二种可能的实现方式中，还包括接收器：发送器通过选择的抢占资源，在多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列，且接收器在多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE选择了相同的抢占资源，则发送器不再在后续的发送状态的抢占时隙上发送抢占序列。 With reference to the first implementation manner of the fifth aspect, in a second possible implementation manner, the receiver further includes: the transmitter, by using the selected preemption resource, sending the preempted time slot of the state in at least one of the multiple preemption slots The preemption sequence is sent, and the receiver monitors that the other UEs select the same preemptive resource on the preemption time slot of the at least one of the plurality of preemption slots, and the transmitter is no longer in the preemption slot of the subsequent transmission state. Send a preemption sequence on.

结合第五方面的第一种或第二种可能的实现方式，在第三种可能的实现方式中，发送器通过选择的抢占资源，在多个抢占时隙中的至少一个发送状态的抢占时隙上以使用基站能够监听到的功率发送抢占序列。 With reference to the first or second possible implementation manner of the fifth aspect, in a third possible implementation, the transmitter, when the preemption state of the at least one of the multiple preemption slots is preempted by the selected preemption resource The preemption sequence is transmitted on the slot with power that the base station can listen to.

结合第五方面或第五方面的上述任一项可能的实现方式，在第四种可能的实现方式中，处理器选择以下的发送机会帧：根据参数 λ和门限百分比 A 确定一次选择之后最多允许选择相同发现资源的 UE个数 k, 根据 k和 UE 的选择监听或者发送的概率联合确定抢占时隙的个数，其中门限百分比 A为一个发现资源上有多个 UE的概率，参数 λ为竟争发现资源的 UE个数和发现资源个数的比值。 With reference to the fifth aspect or any one of the foregoing possible implementation manners of the fifth aspect, in a fourth possible implementation manner, the processor selects the following transmission opportunity frame: determining, according to the parameter λ and the threshold percentage A, the maximum allowed after one selection Selecting the number of UEs k of the same discovery resource, and jointly determining the number of preemption slots according to the probability that k and the UE are selected to listen or transmit, wherein the threshold percentage A is a probability that there are multiple UEs on one discovery resource, and the parameter λ is actually The number and number of UEs that strive to discover resources The ratio of the current number of resources.

结合第五方面的第四种可能的实现方式，在第五种可能的实现方式中，处理器具体用于选择以下的发送机会帧：抢占时隙个数为 k个 UE碰撞解决至 2个 UE碰撞解决所需的时隙个数的总和， k > 2。 With reference to the fourth possible implementation manner of the fifth aspect, in a fifth possible implementation manner, the processor is specifically configured to select the following transmission opportunity frame: the number of preempted time slots is k UE collision resolution to 2 UEs The sum of the number of time slots required for collision resolution, k > 2.

结合第五方面或第五方面的上述任一项可能的实现方式，在第六种可能的实现方式中，处理器具体用于选择以下格式的发送机会帧：发送机会帧中，监听-抢占子帧在传输子帧前，且监听-抢占子帧和传输子帧之间还有蜂窝子帧间隔。 With reference to the fifth aspect or any one of the foregoing possible implementation manners of the fifth aspect, in a sixth possible implementation, the processor is specifically configured to select a transmission opportunity frame in the following format: in the transmission opportunity frame, the monitoring-preempting sub- The frame is before the transmission subframe, and there is also a cellular subframe interval between the interception-preemption subframe and the transmission subframe.

结合第五方面、第五方面的第一至第五种可能的实现方式的任一项，在第七种可能的实现方式中，处理器选择以下格式的发送机会帧：发送机会帧中，监听 -抢占子帧在传输子帧前，且监听 -抢占子帧和传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过监听-抢占子帧的第一个抢占时隙发送一次。 With reference to the fifth aspect, any one of the first to fifth possible implementation manners of the fifth aspect, in a seventh possible implementation manner, the processor selects a transmission opportunity frame in the following format: in the transmission opportunity frame, the monitoring - The preempted subframe is transmitted before the subframe, and there is no cellular subframe interval between the interception-preemption subframe and the transmission subframe. The preemption sequence of all UEs is sent through the first preemption slot of the interception-preemption subframe. .

第六方面，提供了一种利用资源竟争的装置，包括接收机、处理器和存储器：存储器，用于存储处理器执行以下方法所需的指令；接收机，用于接收 UE发送的发送机会帧，其中发送机会帧包括监听-抢占子帧和传输子帧，监听-抢占子帧包括多个抢占时隙；处理器，用于根据发送机会帧，确定发现资源的占用状态或空闲状态；调度空闲的发现资源。 In a sixth aspect, an apparatus for utilizing resource content is provided, comprising: a receiver, a processor, and a memory: a memory, configured to store an instruction required by the processor to execute the following method; and a receiver, configured to receive a transmission opportunity sent by the UE a frame, where the transmission opportunity frame includes a snoop-preemption sub-frame and a transmission sub-frame, the snoop-preemption sub-frame includes a plurality of preemption time slots, and the processor is configured to determine an occupied state or an idle state of the discovered resource according to the transmission opportunity frame; Free discovery resources.

在第一种可能的实现方式中，接收机接收 UE通过选择的抢占资源，在发送机会帧的监听-抢占子帧的抢占时隙上发送的抢占序列；处理器由于抢占资源与发现资源存在一一对应关系，根据选择的抢占资源，确定选择的抢占资源对应的发现资源为占用状态，其他的发现资源为空闲状态。 In a first possible implementation manner, the receiver receives a preemption sequence sent by the UE on the preemption time slot of the interception-preemption subframe of the transmission opportunity frame by using the selected preemption resource; the processor has a preemption resource and a discovery resource. A corresponding relationship, according to the selected preemptive resource, determines that the selected resource corresponding to the preempted resource is occupied, and the other discovered resources are in an idle state.

结合第六方面或第六方面的第一种可能的实现方式，在第二种可能的实现方式中，接收机接收的发送机会帧中，监听 -抢占子帧在传输子帧前，且监听-抢占子帧和传输子帧之间还有蜂窝子帧间隔。 With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation manner, in the transmission opportunity frame received by the receiver, the interception-preemption subframe is in front of the transmission subframe, and is monitored. There is also a cellular subframe interval between the preempted subframe and the transmitted subframe.

结合第六方面或第六方面的第一种可能的实现方式，在第三种可能的实现方式中，接收机接收的发送机会帧中，监听 -抢占子帧在传输子帧前，且监听 -抢占子帧和传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过监听-抢占子帧的第一个抢占时隙发送一次。 With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a third possible implementation manner, in the transmission opportunity frame received by the receiver, the interception-preemption subframe is before the transmission subframe, and the monitoring is performed. There is no cell subframe interval between the preemption subframe and the transmission subframe, and the preemption sequence of all UEs is sent once through the first preemption slot of the snoop-preemption subframe.

上述技术方案，可以通过 UE选择发送机会帧，利用发送机会帧的监听 In the above technical solution, the UE may select to send a chance frame, and use the transmission opportunity frame to monitor.

-抢占子帧中的抢占时隙分析不同用户的状态，确定发现资源的独占性后，由传输子帧发送 D2Dcode, 从而解决了资源竟争时碰撞次数过多的问题，进而 UE减少发射次数，节省了用户设备的功耗。此外，利用资源竟争的装置通过接收机接收的竟争发现资源的 UE的发送机会帧，获得发现资源的占用和空闲状态，从而可以调度空闲状态的发现资源供其他未参与资源竟争的 UE使用，提高了资源的利用率。附图说明 Preempting the preemption time slot in the sub-frame to analyze the status of different users and determine the exclusiveness of the discovered resources. The D2Dcode is transmitted by the transmission subframe, thereby solving the problem of too many collisions when the resource is competitive, and the UE reduces the number of transmissions, thereby saving the power consumption of the user equipment. In addition, the device that utilizes the resource competition obtains the occupied and idle state of the discovery resource by using the transmission opportunity frame of the UE of the contention discovery resource received by the receiver, so that the idle state discovery resource can be scheduled for other UEs not participating in the resource competition. Use, improve the utilization of resources. DRAWINGS

为了更清楚地说明本发明实施例的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作筒单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。 In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those of ordinary skill in the art without departing from the drawings.

图 1是本发明实施例的资源竟争的方法的示意流程图。 FIG. 1 is a schematic flow chart of a method for resource competition according to an embodiment of the present invention.

图 2是本发明另一实施例的资源竟争的方法的示意流程图。 2 is a schematic flow chart of a method for resource contention according to another embodiment of the present invention.

图 3是本发明实施例中抢占资源和发现资源的对应关系的示意图。图 4是本发明实施例的资源竟争的方法的示意原理图。 FIG. 3 is a schematic diagram of a correspondence between preempting resources and discovering resources in an embodiment of the present invention. 4 is a schematic schematic diagram of a method for resource competition in an embodiment of the present invention.

图 5是本发明另一实施例的资源竟争的方法的示意流程图。 FIG. 5 is a schematic flow chart of a method for resource competition according to another embodiment of the present invention.

图 6是本发明另一实施例的资源竟争的方法的示意原理图。 FIG. 6 is a schematic schematic diagram of a method for resource competition according to another embodiment of the present invention.

图 7A和图 7B是本发明实施例的发送机会帧的结构示意图。 7A and 7B are schematic diagrams showing the structure of a transmission opportunity frame according to an embodiment of the present invention.

图 8是本发明实施例的资源竟争的用户设备的示意框图。 FIG. 8 is a schematic block diagram of a user equipment for resource competition according to an embodiment of the present invention.

图 9是本发明另一实施例的资源竟争的用户设备的示意框图。 FIG. 9 is a schematic block diagram of a user equipment for resource competition according to another embodiment of the present invention.

图 10是本发明实施例的利用资源竟争的装置的示意框图。 Figure 10 is a schematic block diagram of an apparatus for utilizing resource contention in accordance with an embodiment of the present invention.

图 11是本发明另一实施例的资源竟争的用户设备的示意框图。 FIG. 11 is a schematic block diagram of a user equipment for resource competition according to another embodiment of the present invention.

图 12是本发明另一实施例的利用资源竟争的装置的示意框图。具体实施方式 Figure 12 is a schematic block diagram of an apparatus for utilizing resource contention in accordance with another embodiment of the present invention. detailed description

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.

本发明的技术方案，可以应用于各种通信***，例如：全球移动通信系统 ( GSM, Global System of Mobile communication ), 码分多址 ( CDMA, Code Division Multiple Access ) ***，宽带码分多址（ WCDMA, Wideband Code Division Multiple Access Wireless ),通用分组无线业务 ( GPRS , General Packet Radio Service ), 长期演进 ( LTE, Long Term Evolution )等。 The technical solution of the present invention can be applied to various communication systems, for example, Global System of Mobile Communication (GSM), code division multiple access (CDMA, Code Division Multiple Access (WCDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), etc.

终端设备，也可称为用户设备（UE, User Equipment ),移动终端（Mobile Terminal ),移动用户设备等，可以经无线接入网（例如， RAN, Radio Access Network ) 与一个或多个核心网进行通信，用户设备可以是移动终端，如移动电话（或称为"蜂窝"电话）和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语音和 /或数据。 A terminal device, which may also be called a user equipment (UE, User Equipment), a mobile terminal (Mobile Terminal), a mobile user equipment, etc., may be connected to one or more core networks via a radio access network (eg, RAN, Radio Access Network) To communicate, the user device can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a mobile device that can be portable, pocket, handheld, computer built, or in-vehicle. They exchange voice and/or data with the wireless access network.

基站，可以是 GSM或 CDMA中的基站（ BTS , Base Transceiver Station ), 也可以是 WCDMA中的基站（ NodeB ),还可以是 LTE中的演进型基站（ eNB 或 e-NodeB, evolutional Node B ), 本发明并不限定，但为描述方便，下述实施例以 eNB为例进行说明。 The base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE. The present invention is not limited, but for convenience of description, the following embodiments are described by taking an eNB as an example.

另外，本文中术语"***"和"网络"在本文中常被可互换使用。本文中术语"和 /或"，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如， A和 /或 B, 可以表示：单独存在 A , 同时存在 A和 B, 单独存在 B 这三种情况。另外，本文中字符 "/" , 一般表示前后关联对象是一种 "或" 的关系。 Additionally, the terms "system" and "network" are used interchangeably herein. The term "and/or" in this context is merely an association describing the associated object, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists separately, and both A and B exist, exist alone B These three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

本发明实施例提供了一种资源竟争的方法，为方便理解本发明的技术方案，接下来对一些术语进行说明。 The embodiment of the present invention provides a method for resource competition. To facilitate understanding of the technical solution of the present invention, some terms are explained next.

D2Dcode: 邻近身份指示码，通常为 32位以上，由发现信号（ discovery Signal )携带。 D2Dcode: The proximity indicator, usually 32 bits or more, carried by the discovery signal.

D2D发现重复周期（ discovery repetition period ): 筒称发现重复周期。在一个发现重复周期中，需要发送发现信号的 UE至少发送了一次 D2Dcode。 D2D discovery repetition period: The barrel is found to have a repetition period. In a discovery repetition period, the UE that needs to transmit the discovery signal transmits the D2Dcode at least once.

D2D发送机会帧（ TX Occasion Frame ): 筒称发送机会帧。在一个 D2D 发现重复周期中，包括至少一个具有本发明自定义帧结构的无线帧用于发现功能，该无线帧即发送机会帧。 UE在该发送机会帧上进行发现信号的发送，以及抢占序列的监听（或者接收）。每个发送机会帧包括一个或多个监听-抢占子†贞 ( Monitoring-Preemption sub-frame )和一个 D2Dcode传输子†贞；监听 -抢占子帧包括多个 D2D发现功能资源抢占时隙。 D2D transmission opportunity frame (TX Occasion Frame): The cylinder is called the transmission opportunity frame. In a D2D discovery repetition period, at least one radio frame having the custom frame structure of the present invention is included for the discovery function, and the radio frame is a transmission opportunity frame. The UE performs discovery signal transmission on the transmission opportunity frame, and interception (or reception) of the preemption sequence. Each transmit opportunity frame includes one or more Monitoring-Preemption sub-frames and a D2Dcode transport sub-frame; the snoop-preemptive sub-frame includes a plurality of D2D discovery function resource preemption slots.

D2Dcode发现资源（ Discovery Resource ): 筒称发现资源。 UE使用该资源发送发现信号，也就是传输 D2Dcode。通常发现资源尺寸较大，例如在 LTE中为 1-3个 RB (英文为 Resource Block, 中文为资源块）。发现资源通过自定义，可以有多个，且所有的发现资源组成发现资源集合。 D2Dcode Discovery Resource: Discovery resources. UE uses this capital The source sends the discovery signal, which is the transmission of D2Dcode. The resource size is usually found to be large, for example, 1-3 RBs in LTE (Resource Block in English, Resource Block in Chinese). The discovery resource can be customized, there can be multiple, and all the discovery resources constitute a collection of discovery resources.

D2Dcode抢占资源（ Preemption Resource ): 筒称抢占资源。抢占资源与发现资源一一对应，抢占资源是 UE为了得到发现资源进行竟争的资源。通常抢占资源尺寸较小，例如 LTE中， 12个 RE (英文为 Resource Element, 中文为资源元素）或 24个 RE等。抢占资源有多个，所有的抢占资源组成抢占资源集合。 UE使用抢占资源发送特定信号，该特定信号也就是抢占序列。 D2Dcode Preemption Resource: The cartridge is called to seize resources. The preemption resource is in one-to-one correspondence with the discovery resource, and the preemption resource is a resource for the UE to compete for the discovery resource. Usually, the resource size is small. For example, in LTE, 12 REs (in English, Resource Element, Chinese as resource element) or 24 REs. There are multiple preemptive resources, and all the preempted resources constitute a collection of preemptive resources. The UE uses the preemption resource to send a specific signal, which is the preemption sequence.

D2D发现功能资源抢占时隙（ Preemption Slot for Discovery Function ): 筒称抢占时隙。 D2D发送机会帧中，一部分抢占时隙用来让 UE抢占序列；一部分抢占时隙用来让 UE监听其他 UE发送的抢占序列。 UE通过抢占资源在一个发送状态的抢占时隙上发送抢占序列。由于抢占资源与发现资源一一对应， UE选择了具体某个发现资源即表示自己选择了与该抢占资源对应的抢占资源。 D2D Discovery Slot for Discovery Function: The slot is called the preemption slot. In the D2D transmission opportunity frame, a part of the preemption time slot is used for the UE to preempt the sequence; a part of the preemption time slot is used for the UE to listen to the preemption sequence sent by other UEs. The UE sends the preemption sequence on the preemption time slot of one transmission state by preempting the resource. Since the preemption resource corresponds to the discovery resource, the UE selects a specific discovery resource to indicate that it has selected the preemption resource corresponding to the preempted resource.

D2Dcode传输子帧（Transmission Sub-frame ): 筒称传输子帧。在 UE 确定自己发现资源的独占性后，利用 D2D发送机会帧的传输子帧在确定的发现资源上发送发现信号，与下文中传输子帧发送 D2Dcode为同一意义。 D2Dcode Transmission Sub-frame: A sub-frame called a transmission sub-frame. After the UE determines the exclusiveness of the discovered resource, the transmission subframe of the D2D transmission opportunity frame transmits the discovery signal on the determined discovery resource, which is the same meaning as the transmission subframe transmits the D2Dcode.

图 1是本发明实施例的资源竟争的方法 10的示意流程图，包括以下内容。该方法可以由 UE执行。 FIG. 1 is a schematic flow chart of a method 10 for resource competition according to an embodiment of the present invention, including the following content. The method can be performed by the UE.

S11 ,选择发送机会帧，其中发送机会帧包括监听-抢占子帧和传输子帧，监听-抢占子帧包括多个抢占时隙。 S11. Select a transmission opportunity frame, where the transmission opportunity frame includes a interception-preemption subframe and a transmission subframe, and the interception-preemption subframe includes multiple preemption slots.

512, 通过分析监听-抢占子帧的多个抢占时隙上不同用户设备的状态，确定选择的发现资源为独占的发现资源。 512. Determine, by analyzing the state of different user equipments on the multiple preemption slots of the snoop-preemption subframe, to determine that the selected discovery resource is an exclusive discovery resource.

513 , 通过传输子帧在独占的发现资源上发送邻近身份指示码。 513. Send a neighbor identity indicator on the exclusive discovery resource by using the transmission subframe.

本发明实施例通过选择发送机会帧，利用发送机会帧的监听-抢占子帧中的抢占时隙分析不同用户的状态，确定发现资源的独占性后，由传输子帧发送 D2Dcode, 从而解决了资源竟争时碰撞次数过多的问题，进而 UE减少发射次数，节省了用户设备的功耗。 The embodiment of the present invention solves the problem by selecting a transmission opportunity frame, analyzing the state of different users by using the preemption time slot in the monitoring-preemption subframe of the transmission opportunity frame, determining the exclusiveness of the discovery resource, and transmitting the D2Dcode by the transmission subframe. In the case of competition, the number of collisions is too large, and the UE reduces the number of transmissions, thereby saving power consumption of the user equipment.

图 2是本发明另一实施例的资源竟争的方法 200的示意流程图，包括以下内容。 2 is a schematic flow diagram of a method 200 of resource contention in accordance with another embodiment of the present invention, including the following.

S210, eNB广播本小区发现功能相关的信息。 eNB通过小区广播信道 BCCH发送本小区发现功能相关的信息：发现重复周期、发送机会帧、发现资源集合、抢占资源集合、抢占时隙的位置和个数、传输子帧、发送机会帧选择方法、和抢占方法等。 S210. The eNB broadcasts information related to the local cell discovery function. The eNB sends information related to the cell discovery function by using the cell broadcast channel BCCH: discovery repetition period, transmission opportunity frame, discovery resource set, preemption resource set, location and number of preemption slots, transmission subframe, transmission opportunity frame selection method, And preemption methods, etc.

可选地，作为不同的实施例， eNB和 UE已知上述相关的信息，可以省略该步骤。上述相关的信息可以事先作为标准信息存储在 eNB和 UE两侧。 Optionally, as different embodiments, the eNB and the UE are aware of the related information, and the step may be omitted. The above related information can be stored in advance as standard information on both sides of the eNB and the UE.

S215, UE在发现重复周期内选择一个发现机会帧。 S215. The UE selects a discovery opportunity frame in the discovery repetition period.

一个发现重复周期可以包括一个或多个发现机会帧。因此， UE可以随机在发现重复周期中选择一个发送机会帧。通常发送机会帧选择方法保证每个发送机会帧被选择的概率是相等的，也可以自行约定。例如 UE选择*** 帧号（英文为 System Frame Number, 缩写为 SFN ) 为 34 (即 SFN=34 ) 的发送机会帧，用于竟争发现资源且发送自己的 D2Dcode。 A discovery repetition period may include one or more discovery opportunity frames. Therefore, the UE can randomly select a transmission opportunity frame in the discovery repetition period. Usually, the transmission opportunity frame selection method ensures that the probability of each transmission opportunity frame being selected is equal, or it can be agreed upon by itself. For example, the UE selects a transmission opportunity frame with a system frame number (in Chinese, System Frame Number, SFN) of 34 (ie, SFN=34), which is used to compete for the discovery resource and send its own D2Dcode.

S220, UE选择发现资源。 S220. The UE selects a discovery resource.

UE在自己选择的每个发送机会帧到达的时候，随机选择一个发现资源。 UE随机选择发现资源的算法能够让 UE选择每个发现资源的概率是相等的。 The UE randomly selects a discovery resource when each of the transmission opportunity frames selected by the UE arrives. The algorithm that the UE randomly selects the discovery resource enables the UE to select the probability of each discovery resource to be equal.

每个 UE自主选择发现资源，可能会出现一个发现资源被 2个及以上的 Each UE chooses to discover resources independently, and there may be one discovery resource that is 2 or more.

UE选择的情况，这种情况称为资源碰撞。资源的碰撞概率随着选择这次发送机会帧的 UE的个数的增多而增大，即随着参数 λ的增大，资源碰撞概率 Ρ也会增大，其中 =竟争发现资源的 UE个数 /发现资源个数。每个 UE自主选择发现资源，还可能会出现一个资源不被任何一个 UE选择的情况，这种不被任何 UE选择的概率随着参数 λ的增大而降低。 In the case of UE selection, this situation is called resource collision. The collision probability of the resource increases with the number of UEs that select this transmission opportunity frame, that is, as the parameter λ increases, the resource collision probability Ρ increases, where = the UE that competes for the discovery resource Number / number of discovered resources. Each UE autonomously selects a discovery resource, and there may also be a case where one resource is not selected by any one UE, and the probability that this is not selected by any UE decreases as the parameter λ increases.

出现资源碰撞之后，如果不进行碰撞解决，这多个 UE就会使用相同的发现资源分别发送自己的 D2Dcode。在 UE距离互相比较近的情况下，会彼此造成干扰，致使接收的 UE不能正确解码这个资源上的信息。接下来，多个 UE需要重新选择发现资源发送， ***效率较低，多次发送导致 UE功率消耗高。 After a resource collision occurs, if no collision resolution is performed, the multiple UEs will send their own D2Dcode using the same discovery resource. In the case where the UEs are relatively close to each other, interference is caused by each other, so that the received UE cannot correctly decode the information on the resource. Next, multiple UEs need to reselect the discovery resource transmission, the system efficiency is low, and multiple transmissions result in high UE power consumption.

假设网络的本小区中包括三个 UE, UE1、 UE2和 UE3 , 其中三个 UE 都选择了相同的发送机会帧，例如 SFN=34的发送机会帧， UE1选择了第 1 发现资源， UE2同样选择了第 1发现资源， UE3选择了第 8的发现资源。 UE1和 UE2就会出现资源碰撞。这个现象是我们不希望看见的，所以本发明实施例提出一个资源竟争的方法以解决资源碰撞过多的问题。该方法中，只有 UE 确定自己选择的发现资源是独占的，才能在该发现资源上进行 D2Dcode的发送。由此，减少了资源碰撞的次数，进而节省了 UE的功耗。 S225 , UE确定每个抢占时隙中自己½听状态还是发送状态。 It is assumed that the UE in the network includes three UEs, UE1, UE2, and UE3, and all three UEs select the same transmission opportunity frame, for example, the transmission opportunity frame of SFN=34, UE1 selects the first discovery resource, and UE2 also selects The first discovery resource, UE3 selects the eighth discovery resource. Resource collisions occur in UE1 and UE2. This phenomenon is what we do not want to see, so the embodiment of the present invention proposes a method of resource competition to solve the problem of excessive resource collision. In this method, only the UE determines that the selected discovery resource is exclusive, and can perform the discovery resource. D2Dcode is sent. Thereby, the number of resource collisions is reduced, thereby saving power consumption of the UE. S225. The UE determines whether the listening state or the sending state is in each of the preempting time slots.

UE根据 eNB发送的广播消息中携带的随机种子，通过随机算法计算每个抢占时隙中自己是发送状态还是监听状态。然后，根据计算的结果在发送状态的抢占时隙发送抢占序列或者在监听状态的监听抢占序列。抢占序列是一个很短的序列，例如抢占序列使用 12个 RE, 并占用时域的一个符号，因此 LTE的一个时隙，可以容纳 7个抢占序列。抢占时隙的频域资源可以是 eNB广播给 UE的，也可以是 eNB和 UE两侧已知的。抢占资源的索引号与发现资源的索引号是对应的。这表明 UE—旦选择了一个发现资源，就表示对应的抢占资源也同时被选择了。 UE使用选择的抢占资源发送抢占序列。 The UE calculates, according to the random seed carried in the broadcast message sent by the eNB, whether the transmission state or the listening state is in each preemption time slot by using a random algorithm. Then, according to the result of the calculation, the preemption sequence in the transmission state or the interception preemption sequence in the listening state is sent. The preemption sequence is a very short sequence. For example, the preemption sequence uses 12 REs and occupies one symbol in the time domain. Therefore, one slot of LTE can accommodate 7 preemption sequences. The frequency domain resources of the preempted time slot may be broadcast by the eNB to the UE, or may be known by both the eNB and the UE. The index number of the preempted resource corresponds to the index number of the discovered resource. This indicates that if the UE selects a discovery resource, it indicates that the corresponding preemption resource is also selected. The UE sends the preemption sequence using the selected preemption resource.

图 3是本发明实施例中抢占资源和发现资源的对应关系的示意图。在该实施例中，抢占资源和发现资源——对应。这表明 UE—旦选择了一个发现资源，就表示对应的抢占资源也同时被选择了。 UE在选择的抢占资源上发送抢占序列。 FIG. 3 is a schematic diagram of a correspondence between preempting resources and discovering resources in an embodiment of the present invention. In this embodiment, the resource is seized and the resource is discovered - corresponding. This indicates that if the UE selects a discovery resource, it indicates that the corresponding preemption resource is also selected. The UE sends a preemption sequence on the selected preempted resource.

假设发现资源集合的每份发现资源为 1个子帧 *1个 RB, 抢占资源集合的每份抢占资源为 1个符号 *1RB, 接下来参考图 3说明抢占资源与发现资源的对应关系 It is assumed that each discovery resource of the resource set is 1 subframe *1 RB, and each preemptive resource of the preempted resource set is 1 symbol *1 RB, and then the correspondence between the preempted resource and the discovery resource is described with reference to FIG.

图 3中，每个时隙有 7个符号（ 0-6 )、频域有 2个 RB ( RB1和 RB2 ) 的情况下，抢占资源索引号从 RB1的符号 0开始为第 1抢占资源 31。接下来，先按照时间域顺序编号，再按照频域进行编号，因此 RB2的符号 0为第 8抢占资源 32, RB2的符号 6为第 14抢占资源 33。图 3中抢占资源的索引号与发现资源的索引号是一一对应的，例如第 1抢占资源 31与第 1发现资源对应。在图 3中抢占资源 31-33以不同的填充格式区分，以示清楚。 In Fig. 3, when there are 7 symbols (0-6) in each slot and 2 RBs (RB1 and RB2) in the frequency domain, the preempted resource index number is the first preempted resource 31 from the symbol 0 of RB1. Next, the numbers are first sequenced according to the time domain, and then numbered according to the frequency domain. Therefore, the symbol 0 of RB2 is the 8th preemption resource 32, and the symbol 6 of RB2 is the 14th preemption resource 33. The index of the preempted resource in FIG. 3 is in one-to-one correspondence with the index number of the discovery resource. For example, the first preemptive resource 31 corresponds to the first discovery resource. The preemption resources 31-33 in Figure 3 are distinguished by different padding formats for clarity.

S230, 确定发现资源的独占性。 S230, determining the exclusiveness of the discovered resource.

当通过选择的抢占资源，在一个发送状态的抢占时隙上发送抢占序列后，在监听状态的抢占时隙上监听到没有其他 UE选择了相同的抢占资源发送抢占序列时，则将所选择的发现资源确定为独占的发现资源，通过传输子帧在独占的发现资源上发送邻近身份指示码。 After the preemption resource is sent through the selected preemption time slot, the preemption time slot in the listening state is monitored, and no other UE selects the same preemptive resource to send the preemption sequence, and then the selected one is selected. The discovery resource is determined to be an exclusive discovery resource, and the neighbor identity indicator is transmitted on the exclusive discovery resource by using the transmission subframe.

S235 , 确定发现资源被占用。 S235, determining that the discovered resource is occupied.

当通过选择的抢占资源，在一个发送状态的抢占时隙上发送抢占序列后，在监听状态的抢占时隙上监听到其他 UE选择了相同的抢占资源发送抢图 4是本发明实施例的资源竟争的方法的示意原理图。图 4中说明了碰撞发现及解决方法的原理。当多个 UE选择同一个发现资源的时候，意味着它们后续要使用相同的抢占资源发送抢占序列，当多个 UE确定一个抢占时隙中自己的状态都为发送（Tx )状态时，彼此之间不能互相监听，无法发现有其他的 UE也占用这个发现资源。参考图 4中的第 1抢占时隙 41 , UE1和 UE2 同为发送状态。当多个 UE确定一个抢占时隙中自己的状态都为监听 ( Rx )状态时，因为没有 UE发送信号，所以同样不能发现其他 UE占用这个发现资源。参考图 4中的第 2抢占时隙 42, UE1和 UE2同为监听状态。当多个 UE确定一个抢占时隙中的状态不同，即有的为发送，有的为监听时，监听的 UE会发现有其他 UE在自己选择的抢占资源上发送抢占序列，这时这个监听的 UE就知道网络中有其他 UE与自己资源碰撞了。参考图 4中的第 3时隙 43 , UE1为发送状态， UE2为监听状态。因此，当前为监听状态的 UE2认为自己选择的发现资源抢占失败，后续的时隙它将不再在对应的抢占资源上发送抢占序列，也不会在传输子帧使用选择的发现资源发送 D2Dcode, 参考第 4时隙 44。在第 4时隙 44及以后的时隙， UE2的状态可以是 Rx状态，也可以不进行监听，只是不能为 Tx状态。当前为发送状态的 UE1 由于 UE2在后续的时隙中不发送抢占序列，因此，一直到抢占时隙结束， UE1都没有监听到其他 UE在自己选择的发现资源上发送抢占序列，所以认为自己选择的发现资源抢占成功。抢占成功后， UE1会在传输子帧使用自己选择的发送资源发送 D2Dcode。 After the preemption resource is sent through the selected preemption time slot, the preemption time slot in the listening state is monitored, and other UEs are selected to select the same preemptive resource to send and rob. 4 is a schematic schematic diagram of a method for resource competition in an embodiment of the present invention. The principle of collision finding and solution is illustrated in Figure 4. When multiple UEs select the same discovery resource, it means that they need to use the same preemption resource to send the preemption sequence. When multiple UEs determine that their own state in a preemption time slot is the transmission (Tx) state, each other They cannot monitor each other and cannot discover that other UEs also occupy this discovery resource. Referring to the first preemption time slot 41 in FIG. 4, UE1 and UE2 are both in a transmission state. When multiple UEs determine that their own state in a preemption time slot is the listening (Rx) state, since no UE transmits a signal, it is also impossible to find that other UEs occupy the discovery resource. Referring to the second preemption time slot 42 in FIG. 4, UE1 and UE2 are both in the listening state. When a plurality of UEs determine that the state in a preempted time slot is different, that is, some are for transmission, and some are for listening, the monitored UE may find that other UEs send a preemption sequence on the preempted resource that is selected by the UE. The UE knows that other UEs in the network have collided with their own resources. Referring to the third time slot 43 in FIG. 4, UE1 is in a transmitting state, and UE2 is in a listening state. Therefore, the UE2 that is currently in the listening state considers that the selected resource preemption fails, and the subsequent time slot will not send the preemption sequence on the corresponding preempted resource, nor will the D2Dcode be sent in the transmission subframe using the selected discovery resource. Reference to slot 4 44. In the fourth time slot 44 and subsequent time slots, the state of UE2 may be in the Rx state, or may not be monitored, but may not be in the Tx state. The UE1 that is currently in the transmitting state does not send the preemption sequence in the subsequent time slots. Therefore, until the preemption time slot ends, UE1 does not listen to other UEs to send the preemption sequence on the discovery resource of the selected one, so it considers that it chooses. The discovery resources seized the success. After the preemption is successful, UE1 sends the D2Dcode in the transmission subframe using its own selected transmission resource.

为了方便说明，图 4中仅以两个 UE为例，但本发明对此不做限定，实际上同一小区中存在多个 UE竟争发现资源。抢占时隙个数与竟争发现资源的 UE个数密切相关。作为优选的实施例，为了保证最后发送 D2Dcode时，发现资源上出现的碰撞低于残余碰撞门限百分比 A, 在小区规划时，需要精心设计抢占时隙的个数。残余碰撞门限百分比 A也筒称为门限百分比 A。在一个发送机会帧中，通过监听和发送，有的 UE已经确定独占的发现资源，有的 UE已经确定接下来不再有发送状态，有的 UE由于监听时长不够，还需要通过几次监听和发送才能最终确定接下来的状态。然而，作为网络设计，通常会对上述确定过程有时间要求，这样在统一的时间要求下，有的 UE可能还没有确定接下来的状态。因此，出于网络优化的目的，指定了一个参数，即门限百分比 A,用来指示上述情形中，一个发现资源上有多个 UE的概率。下面说明一下设计方法： For convenience of description, only two UEs are taken as an example in FIG. 4, but the present invention does not limit this. In fact, multiple UEs in the same cell compete for resources. The number of preempted time slots is closely related to the number of UEs that compete for resources. As a preferred embodiment, in order to ensure that the collision occurring on the resource is lower than the residual collision threshold percentage A when the D2Dcode is finally transmitted, the number of preempted time slots needs to be carefully designed in the cell planning. The residual collision threshold percentage A is also referred to as the threshold percentage A. In a transmission opportunity frame, by monitoring and transmitting, some UEs have determined the exclusive discovery resources, and some UEs have determined that there is no longer a transmission state, and some UEs need to listen to several times due to insufficient monitoring duration. Send to finalize the next state. However, as a network design, there is usually a time requirement for the above determination process, so that under a uniform time requirement, some UEs may not have determined the next state. Therefore, for the purpose of network optimization, a parameter is specified, That is, the threshold percentage A is used to indicate the probability that there are multiple UEs on one discovery resource in the above situation. Here's a description of the design approach:

步骤 1 )根据网络规划，选择 λ的值，即定义多少个 UE在多少个发现资源上竟争。 Step 1) According to the network plan, select the value of λ, that is, define how many UEs compete on how many resources are found.

=竟争发现资源的 UE个数 /发现资源个数。公式 1 步骤 2 )根据 λ和门限百分比 Α, 计算一次选择之后最多允许选择相同发现资源的 UE个数 k。门限百分比 A为一个发现资源上有多个 UE的概率。 UE个数从 2到 k, k值为满足公式 2的值： = number of UEs that have found resources to discover / number of discovered resources. Equation 1 Step 2) Calculate the maximum number of UEs k that can select the same discovery resource after one selection according to λ and threshold percentage Α. Threshold percentage A is the probability that there are multiple UEs on one discovery resource. The number of UEs ranges from 2 to k, and the value of k satisfies the value of Equation 2:

^^*k <=A 公式 2 k! ^^*k <=A Formula 2 k!

步骤 3 )计算解决多个 UE碰撞需要的抢占时隙个数。 Step 3) Calculate the number of preemption slots required to resolve multiple UE collisions.

定义 k个 UE在一个发现资源上碰撞，至少有一个 UE发现碰撞需要的抢占时隙个数为 m_k, 则一个发送机会帧中的抢占时隙个数满足公式 3。 Defining k UEs colliding on one discovery resource, and at least one UE finds that the number of preemption slots required for collision is m _k , and the number of preemption slots in one transmission opportunity frame satisfies Equation 3.

抢占时隙个数 = ∑ _k 公式 3 假设 UE都按照收发各 50%的概率来计算自己的发送和监听状态，且门限百分比 A为 1%时，举例来说，则 2-5个 UE在一个发现资源碰撞时，至少有一个 UE发现有碰撞的抢占时隙个数的关系如表 1所示。 Preemption slot number = ∑ _k Equation 3 Suppose the UE calculates its own transmission and listening status according to the probability of transmitting and receiving each 50%, and the threshold percentage A is 1%, for example, 2-5 UEs in one When the resource collision is found, the relationship between the number of preempted slots that at least one UE finds a collision is as shown in Table 1.

表 1 Table 1

如果步骤 2 )计算的 k为 4, 则所有 UE用于碰撞解决的抢占时隙个数为： 6+4+3=13。

If the calculated k of step 2) is 4, the number of preemption slots used by all UEs for collision resolution is: 6+4+3=13.

本发明实施例中的可以由一个或多个监听-抢占子帧包括所需的抢占时隙。可选的，本发明实施例可以限定一个监听-抢占子帧包括全部所需的抢占时隙。在不同的实施例中，也可以由多个根据不同的***限定的子帧长度的监听 -抢占子帧包括全部的抢占时隙。在后者的实施例中，确定的监听-抢占子帧个数参考下述步骤。两种实现方式中相同的是，在一个发送机会帧的结构中，监听-抢占子帧总是在传输子帧前，且监听-抢占子帧和传输子帧之间、或在监听-抢占子帧之前、或者传输子帧之后还可以包括蜂窝子帧。蜂窝子帧是发送机会帧中包括的除监听-抢占子帧和传输子帧之外的子帧，可以用于发送正常业务。 In the embodiment of the present invention, one or more snoop-preemption subframes may include a required preemption slot. Optionally, the embodiment of the present invention may define that one interception-preemption subframe includes all required preemption slots. In different embodiments, the snoop-preemption subframes may also include all preemption slots by a plurality of subframe lengths defined according to different systems. In the latter embodiment, the determined number of snoop-preempted subframes is referred to the following steps. The same in the two implementation manners, in the structure of a transmission opportunity frame, the interception-preemption subframe is always in front of the transmission subframe, and the interception-preemption subframe and the transmission subframe are The cellular subframe may also be included before, or after the monitoring-preemption subframe, or after the transmission subframe. The cellular subframe is a subframe other than the interception-preemption subframe and the transmission subframe included in the transmission opportunity frame, and can be used to transmit normal traffic.

步骤 4 )确定监听-抢占子帧个数。 Step 4) Determine the number of snoop-preempted subframes.

监听-抢占子帧个数 = 向上取整{抢占时隙个数 /子帧中包含的时隙个数} 公式 4 Listening - number of preempted sub-frames = rounding up {preempting the number of slots / number of slots included in a subframe} Equation 4

LTE中一个子帧为 2个时隙，则需要的子帧个数为 7个。如果是 UMTS, 一个子帧为 3个时隙，则需要子帧个数为 5个。 In a LTE, one subframe is two slots, and the number of required subframes is seven. If it is UMTS and one subframe is 3 slots, the number of subframes needs to be 5.

本发明实施例 UE利用选择的抢占资源，在发送机会帧的监听-抢占子帧中的一个抢占时隙上发送抢占序列，监听其他 UE使用的抢占资源；通过分析，确定选择的抢占资源的独占性，根据抢占资源与发现资源的——对应关系，确定独占的发现资源；通过发送机会帧的传输子帧在独占的发现资源上发送 D2Dcode; 由此减少了资源碰撞次数，进而 UE减少发射次数，节省了 UE的功耗。 In the embodiment of the present invention, the UE uses the selected preemption resource to send a preemption sequence on a preemption time slot in the interception-preemption subframe of the transmission opportunity frame, and listens to the preemption resource used by other UEs; and determines the exclusive occupation of the selected preemption resource through analysis. Selecting the exclusive discovery resource according to the corresponding relationship between the preemptive resource and the discovery resource; transmitting the D2Dcode on the exclusive discovery resource by transmitting the transmission subframe of the opportunity frame; thereby reducing the number of resource collisions, and further reducing the number of transmissions by the UE , saves the power consumption of the UE.

在 UE自主选择发现资源的情况下，有一些发现资源是没有任何 UE选择的，因此在传输子帧总有一些频域资源是空闲的。当 UE通过监听-抢占子帧发送抢占序列的功率能够使得本小区的 eNB监听到时， eNB可以获知空闲状态的发现资源，进而调度这些空闲的发现资源给其他未参与资源竟争的 UE使用，以便提高资源的利用率。参见图 5的实施例。 In the case that the UE autonomously selects the discovery resource, some of the discovery resources are not selected by any UE, so there are always some frequency domain resources in the transmission subframe that are idle. When the UE transmits the preemption subframe power to enable the eNB of the local cell to monitor, the eNB can learn the discovery resources in the idle state, and then schedule the idle discovery resources to be used by other UEs that do not participate in the resource competition. In order to improve the utilization of resources. See the embodiment of Figure 5.

图 5是本发明另一实施例的利用资源竟争的方法 50的示意流程图，包括以下内容。该方法可以由 eNB执行。 Figure 5 is a schematic flow diagram of a method 50 of utilizing resource contention in accordance with another embodiment of the present invention, including the following. The method can be performed by an eNB.

551 , 接收 UE发送的发送机会帧，其中所述发送机会帧包括监听 -抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙。 551. Receive a transmission opportunity frame sent by the UE, where the transmission opportunity frame includes a interception-preemption subframe and a transmission subframe, and the interception-preemption subframe includes multiple preemption slots.

552, 根据所述发送机会帧，确定发现资源的占用状态或空闲状态。 S53 , 调度空闲的发现资源。 552. Determine, according to the sending opportunity frame, an occupied state or an idle state of the discovered resource. S53, scheduling idle discovery resources.

本发明实施例通过监听竟争发现资源的 UE的发送机会帧，获得发现资源的占用和空闲状态，从而可以调度空闲状态的发现资源供其他未参与资源竟争的 UE使用，提高了资源的利用率。 The embodiment of the present invention obtains the occupied and idle state of the discovery resource by monitoring the transmission opportunity frame of the UE that is the contention discovery resource, so that the discovery resource in the idle state can be scheduled for use by other UEs not participating in the resource competition, thereby improving resource utilization. rate.

图 6是本发明另一实施例的资源竟争的方法的示意原理图图。如图 6所示，在该实施例中，发送机会帧 61 包括多个监听-抢占子帧 62和一个传输子帧 63 , 还包括多个蜂窝子帧 64。监听-抢占子帧 62包括多个抢占时隙用于监听或发送抢占序列。 UE1至 UE8的抢占资源分别对应图 6的 601、 602、 603、 604、 601、 606、 607和 608, 为方便说明，不同的 UE以不同的图案区分。在其中一个抢占时隙， UE1和 UE5的抢占资源沖突，同时选择了抢占资源 601 , 参见图中 611所示。在接下来的抢占时隙中， UE5退避，不再发送抢占序列。 UE1继续在后续抢占时隙继续发送和监听抢占序列，直到确认没有其他 UE占用同一抢占资源，抢占资源 601由 UE1独占。由于抢占资源和发现资源存在对应关系，当确定了独占的抢占资源，即确定了独占的发现资源。在发现资源集合 620中，可以看出发现资源的不同状态，其中 UE 的独占的发现资源以与抢占资源相同的图案表示，空闲状态的发现资源以 621表示。 FIG. 6 is a schematic schematic diagram of a method for resource competition according to another embodiment of the present invention. As shown in FIG. 6, in this embodiment, the transmission opportunity frame 61 includes a plurality of snoop-preemption subframes 62 and a transmission subframe 63, and further includes a plurality of cellular subframes 64. The snoop-preemption subframe 62 includes a plurality of preemption slots. Monitor or send a preemption sequence. The preemptive resources of UE1 to UE8 correspond to 601, 602, 603, 604, 601, 606, 607, and 608 of FIG. 6, respectively. For convenience of description, different UEs are distinguished by different patterns. In one of the preemption slots, the preemption resources of UE1 and UE5 collide, and the preemption resource 601 is selected, as shown in 611 in the figure. In the next preemption time slot, UE5 retreats and no longer transmits the preemption sequence. UE1 continues to transmit and monitor the preemption sequence in the subsequent preemption time slot until it is confirmed that no other UE occupies the same preemption resource, and the preempted resource 601 is exclusively occupied by UE1. Since the preemptive resources and the discovered resources have corresponding relationships, when the exclusive preemptive resources are determined, the exclusive discovery resources are determined. In the discovery resource set 620, different states of the discovery resource can be seen, wherein the exclusive discovery resource of the UE is represented by the same pattern as the preempted resource, and the discovery resource of the idle state is represented by 621.

本发明实施例中要求 UE在所选择的发现资源对应的抢占资源上发送抢占序列是能够让全小区的 UE都能够监听到的，因此 eNB也能够监听到。最筒单的情况就是要求 UE使用最大发射功率来发送抢占序列，这时 eNB是能够监听到抢占序列的。通常情况下 eNB会对 UE的发射功率有一个限制，这样既能保证监听的正确率也节省 UE的电能，这个限制和小区的覆盖范围相关，可以由小区规划制定。 In the embodiment of the present invention, the UE is required to send the preemption sequence on the preempted resource corresponding to the selected discovery resource, so that the UE can be monitored by the UE in the whole cell, and therefore the eNB can also monitor. The most simple case is that the UE is required to use the maximum transmit power to transmit the preemption sequence, at which time the eNB can listen to the preemption sequence. Generally, the eNB has a limit on the UE's transmit power, which can ensure the correct rate of monitoring and save the power of the UE. This limitation is related to the coverage of the cell and can be determined by the cell plan.

在传输子帧， eNB会调度未被占用的空闲资源给蜂窝用户使用。我们将只使用蜂窝通讯功能而不使用发现功能的 UE称为蜂窝用户。因为调度蜂窝用户需要一定的处理时间， eNB需要在 D2D传输子帧前若干时间，比如 1 毫秒内，得到空闲状态的发现资源列表，因此要求 D2D传输子帧要么与监听-抢占子帧间隔足够的调度处理时间，要么在监听-抢占子帧的第一个抢占时隙上所有 UE都在自己选择的抢占资源上发送抢占序列，这时 D2Dcode 传输子帧可以紧接在抢占子帧之后。因此， D2Dcode发送机会帧 70有两种形式。 In the transmission subframe, the eNB schedules unused resources that are not occupied for use by the cellular user. We refer to UEs that use only cellular communication functions instead of discovery functions as cellular users. Because scheduling a cellular user requires a certain processing time, the eNB needs to obtain a list of discovery resources in an idle state some time before the D2D transmission subframe, for example, within 1 millisecond, so that the D2D transmission subframe is required to be sufficiently spaced from the interception-preemption subframe. The scheduling processing time, or all the UEs in the first preemptive time slot of the snoop-preempted sub-frame, send the preemption sequence on the preempted resource of the selected pre-emptive time. The D2Dcode transmission sub-frame can be immediately after the pre-emptive sub-frame. Therefore, the D2Dcode transmission opportunity frame 70 has two forms.

在此需要说明的是：蜂窝用户在发送机会帧的每个子帧仍然可以根据 eNB的调度情况正常使用蜂窝功能。因为发现资源已预留， eNB通常不会为该蜂窝用户调度这些预留的发现资源。但是通过监听 UE发送的抢占序列， eNB获知空闲状态的发现资源后，在传输子帧可以调度这些空闲状态的发现资源给上述蜂窝用户，以用于蜂窝通讯功能。 It should be noted here that the cellular user can still use the cellular function normally according to the scheduling situation of the eNB in each subframe in which the opportunity frame is transmitted. Since the discovery resource is reserved, the eNB typically does not schedule these reserved discovery resources for the cellular user. However, after the eNB acquires the discovery resource in the idle state, the eNB can schedule the discovery resources of the idle state to the cellular user for the cellular communication function.

图 7A和图 7B是本发明实施例的发送机会帧 70的结构示意图。在本发明实施例中，以一个监听-抢占子帧包括两个抢占时隙为例进行说明，因此监听-抢占子帧 71 为多个，但可选由一个监听-抢占子帧包括所有的抢占时隙，出于筒洁，不再赘述。 7A and 7B are schematic diagrams showing the structure of a transmission opportunity frame 70 according to an embodiment of the present invention. In the embodiment of the present invention, a snoop-preemption subframe includes two preemption slots as an example, so There are multiple snooping-preempting sub-frames 71, but one listening-preempting sub-frame includes all preempting time slots, which is not exhaustive.

第一种格式如图 7A所示，监听-抢占子帧 71在传输子帧 72前，且监听 -抢占子帧 71和传输子帧 72之间有蜂窝子帧 73间隔。利用蜂窝子帧 73间隔的时间， eNB可以调度蜂窝用户。 The first format is shown in Figure 7A. The snoop-preemption subframe 71 is before the transmission subframe 72, and there is a cellular subframe 73 interval between the snoop-preemption subframe 71 and the transmission subframe 72. With the time between cell subframes 73, the eNB can schedule cellular users.

第二种格式如图 7B所示，监听-抢占子帧 71在传输子帧 72前，之间没有蜂窝子帧 73间隔，但要求所有的 UE通过监听-抢占子帧 71的第一个抢占时隙 74, 即首次出现的抢占时隙，在自己选择的发现资源对应的抢占资源上发送一次抢占序列。通过所有 UE, 也就是指使用发现功能的 UE, 在第一个抢占时隙发送了一次抢占序列， eNB可以尽快获知空闲状态的发现资源，进而获得调度蜂窝用户的处理时间。通过本发明实施例的原理，在接下来的抢占时隙，通过多个抢占时隙上不同的 UE的发送和监听状态， UE可以确定自己独占的发现资源。 The second format is as shown in FIG. 7B. The interception-preemption subframe 71 has no cellular subframe 73 interval before the transmission subframe 72, but all UEs are required to listen to the first preemption of the preemption subframe 71. The slot 74, that is, the first preempted time slot, sends a preemption sequence on the preempted resource corresponding to the selected discovery resource. Through all the UEs, that is, the UE using the discovery function, the preemption sequence is sent in the first preemption time slot, and the eNB can learn the discovery resources in the idle state as soon as possible, thereby obtaining the processing time of the scheduling cellular user. With the principle of the embodiment of the present invention, in the next preemptive time slot, the UE can determine its own exclusive discovery resource through the sending and listening states of different UEs in multiple preemption slots.

图 8是本发明实施例的资源竟争的用户设备 ( UE ) 80的示意框图。用户设备 80包括：选择单元 81、确定单元 82和发送单元 83。用户设备 80可以是移动电话、移动计算机等，能够实现本发明实施例的资源竟争的方法 10。 FIG. 8 is a schematic block diagram of a user equipment (UE) 80 for resource contention according to an embodiment of the present invention. The user device 80 includes: a selection unit 81, a determination unit 82, and a transmission unit 83. The user equipment 80 can be a mobile phone, a mobile computer, or the like, and can implement the resource competition method 10 of the embodiment of the present invention.

选择单元 81选择发送机会帧，其中所述发送机会帧包括监听-抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙。 The selecting unit 81 selects a transmission opportunity frame, where the transmission opportunity frame includes a interception-preemption subframe and a transmission subframe, and the interception-preemption subframe includes a plurality of preemption slots.

确定单元 82通过分析所述监听-抢占子帧的多个抢占时隙上不同用户设备的状态，确定所选择的发现资源为独占的发现资源。 The determining unit 82 determines that the selected discovery resource is an exclusive discovery resource by analyzing states of different user devices on the plurality of preemption slots of the snoop-preemption subframe.

发送单元 83通过所述传输子帧在所述独占的发现资源上发送邻近身份指示码。 The transmitting unit 83 transmits the neighbor identity indicator on the exclusive discovery resource through the transmission subframe.

装置 80通过选择发送机会帧，利用发送机会帧的监听-抢占子帧中的抢占时隙分析不同用户的状态，确定发现资源的独占性后，由传输子帧发送 D2Dcode, 从而解决了资源竟争时碰撞次数过多的问题，进而 UE减少发射次数，节省了用户设备的功耗。 The device 80 selects the transmission opportunity frame, analyzes the state of different users by using the preemption time slot in the interception-preemption subframe of the transmission opportunity frame, determines the exclusiveness of the discovery resource, and then transmits the D2Dcode from the transmission subframe, thereby solving the resource competition. When the number of collisions is too large, the UE reduces the number of transmissions and saves power consumption of the user equipment.

图 9是本发明另一实施例的资源竟争的用户设备 90的示意框图。用户设备 90包括：选择单元 91、确定单元 92、发送单元 93监听单元 94和控制单元 95。用户设备 90的选择单元 91、确定单元 92和发送单元 93与用户设备 80的选择单元 81、确定单元 82和发送单元 83相同或相似，不同的是用户设备 90还包括监听单元 94和控制单元 95。选择单元 91选择发送机会帧，其中所述发送机会帧包括监听-抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙。 FIG. 9 is a schematic block diagram of a user equipment 90 for resource contention according to another embodiment of the present invention. The user equipment 90 includes: a selection unit 91, a determination unit 92, a transmission unit 93 listening unit 94, and a control unit 95. The selection unit 91, the determination unit 92, and the transmission unit 93 of the user equipment 90 are the same as or similar to the selection unit 81, the determination unit 82, and the transmission unit 83 of the user equipment 80, except that the user equipment 90 further includes a listening unit 94 and a control unit 95. . The selecting unit 91 selects a transmission opportunity frame, where the transmission opportunity frame includes a interception-preemption subframe and a transmission subframe, and the interception-preemption subframe includes a plurality of preemption slots.

确定单元 92通过分析所述监听-抢占子帧的多个抢占时隙上不同用户设备的状态，确定所选择的发现资源为独占的发现资源。 The determining unit 92 determines that the selected discovery resource is an exclusive discovery resource by analyzing states of different user devices on the plurality of preemption slots of the snoop-preemption subframe.

发送单元 93通过所述传输子帧在所述独占的发现资源上发送邻近身份指示码。 The transmitting unit 93 transmits the neighbor identity indicator on the exclusive discovery resource through the transmission subframe.

可选的，作为不同的实施例，发送单元 93通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列，且监听单元 94在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE有没有选择相同的抢占资源，确定单元 92在监听单元 94在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE没有选择相同的抢占资源时，根据抢占资源与发现资源存在的一一对应关系，则将所述选择的抢占资源对应的发现资源确定为独占的发现资源。 Optionally, as a different embodiment, the sending unit 93 sends a preemption sequence on the preemption time slot of the at least one of the multiple preemption slots by using the selected preemption resource, and the monitoring unit 94 is in the multiple Whether the other UEs have selected the same preemptive resource on the preempted time slot of at least one of the preemptive time slots, and the determining unit 92 preempts at least one of the plurality of preempted time slots in the listening unit 94. When the time slot monitors that the other UEs do not select the same preemption resource, the discovery resource corresponding to the selected preemption resource is determined as an exclusive discovery resource according to the one-to-one correspondence between the preempted resource and the discovery resource.

可选的，作为不同的实施例，控制单元 95当所述监听单元 94在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE没有选择相同的抢占资源时，控制所述发送单元 93 不再在后续的发送状态的抢占时隙上发送抢占序列。 Optionally, as a different embodiment, when the monitoring unit 94 monitors, on the preemption time slot of the at least one of the multiple preempted time slots, the monitoring unit 94 does not select the same preemptive resource. The transmitting unit 93 is controlled to no longer send a preemption sequence on the preemption time slot of the subsequent transmission state.

可选的，作为不同的实施例，发送单元 93通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上以使用基站能够监听到的功率发送所述抢占序列。 Optionally, as a different embodiment, the sending unit 93 sends the preemption by using the power that the base station can monitor, on the preemption time slot of the at least one of the multiple preemption slots, by using the selected preemption resource. sequence.

可选的，作为不同的实施例，选择单元 91选择以下的发送机会帧：所述发送机会帧中所述抢占时隙的个数，是为根据 k和 UE的选择监听或者发送的概率联合确定的，其中 k为根据参数 λ和门限百分比 Α确定的最多允许选择相同发现资源的 UE个数，所述门限百分比 A为一个发现资源上有多个 UE的概率，所述参数 λ为竟争发现资源的 UE个数和发现资源个数的比值。 Optionally, as a different embodiment, the selecting unit 91 selects the following transmission opportunity frame: the number of the preemption slots in the transmission opportunity frame is jointly determined according to the probability that k and the UE are selected to be monitored or transmitted. Where k is the number of UEs that are allowed to select the same discovery resource according to the parameter λ and the threshold percentage ,, the threshold percentage A is the probability that there are multiple UEs on one discovery resource, and the parameter λ is a competitive discovery. The ratio of the number of UEs of the resource to the number of discovered resources.

可选的，作为不同的实施例，选择单元 91具体选择以下的发送机会帧：所述发送机会帧中所述抢占时隙个数为 k个 UE碰撞解决至 2个 UE碰撞解决所需的时隙个数的总和， k > 2。 Optionally, as a different embodiment, the selecting unit 91 specifically selects the following sending opportunity frame: the number of the preempting time slots in the sending opportunity frame is required for k UE collision resolution to 2 UE collision resolution The sum of the number of slots, k > 2.

可选的，作为不同的实施例，选择单元 91具体用于选择以下格式的发送机会帧：所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间还有蜂窝子帧间隔。可选的，作为不同的实施例，选择单元具体用于选择以下格式的发送机会帧：所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过所述监听-抢占子帧的第一个抢占时隙发送一次。 Optionally, as a different embodiment, the selecting unit 91 is specifically configured to select a sending opportunity frame in the following format: in the sending opportunity frame, the listening-preempting subframe is in front of the transmitting subframe, and the listening There is also a cellular subframe interval between the preempted subframe and the transmitted subframe. Optionally, as a different embodiment, the selecting unit is specifically configured to select a sending opportunity frame in the following format: in the sending opportunity frame, the listening-preempting subframe is in front of the transmitting subframe, and the listening is There is no cell subframe interval between the preemption subframe and the transmission subframe, and the preemption sequence of all UEs is sent once through the first preemption slot of the snoop-preemption subframe.

用户设备 90可以利用选择的抢占资源，在发送机会帧的监听-抢占子帧中的一个抢占时隙上发送抢占序列，监听其他 UE使用的抢占资源；通过分析，确定选择的抢占资源的独占性，根据抢占资源与发现资源的——对应关系，确定独占的发现资源；通过发送机会帧的传输子帧在独占的发现资源上发送 D2Dcode; 由此减少了资源碰撞次数，进而 UE减少发射次数，节省了 UE的功耗，可以实现本发明实施例的方法 10和 20。 The user equipment 90 may use the selected preemption resource to send a preemption sequence on a preemption time slot in the interception-preemption subframe of the transmission opportunity frame, and listen to the preemption resources used by other UEs; and determine the exclusiveness of the selected preemption resources through analysis. Determining the exclusive discovery resource according to the corresponding relationship between the preemptive resource and the discovery resource; transmitting the D2Dcode on the exclusive discovery resource by transmitting the transmission subframe of the opportunity frame; thereby reducing the number of resource collisions, and further reducing the number of transmissions by the UE, The power consumption of the UE is saved, and the methods 10 and 20 of the embodiments of the present invention can be implemented.

图 10是本发明实施例的利用资源竟争的装置 100的示意框图。装置 100 包括接收单元 101、确定单元 102和调度单元 103。装置 100可以是网络侧设备，例如基站，与用户设备 80或用户设备 90等构成无线网络。 Figure 10 is a schematic block diagram of an apparatus 100 for utilizing resource contention in accordance with an embodiment of the present invention. The apparatus 100 includes a receiving unit 101, a determining unit 102, and a scheduling unit 103. The device 100 may be a network side device, such as a base station, and constitutes a wireless network with the user device 80 or the user device 90.

接收单元 101接收 UE发送的发送机会帧，其中所述发送机会帧包括监听-抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙。 The receiving unit 101 receives a transmission opportunity frame sent by the UE, where the transmission opportunity frame includes a monitoring-preemption subframe and a transmission subframe, and the interception-preemption subframe includes multiple preemption slots.

确定单元 102根据所述发送机会帧，确定发现资源的占用状态或空闲状态。 The determining unit 102 determines the occupied state or the idle state of the discovery resource according to the transmission opportunity frame.

调度单元 103调度空闲的发现资源。 The scheduling unit 103 schedules idle discovery resources.

装置 100通过监听竟争发现资源的 UE的发送机会帧，获得发现资源的占用和空闲状态，从而可以调度空闲状态的发现资源供其他未参与资源竟争的 UE使用，提高了资源的利用率。 The device 100 obtains the occupied and idle state of the discovery resource by monitoring the transmission opportunity frame of the UE that is contending for the discovery resource, so that the discovery resource in the idle state can be scheduled for use by other UEs not participating in the resource competition, thereby improving the resource utilization rate.

此外，可选的，作为不同的实施例，接收单元 101接收 UE通过选择的抢占资源，在所述发送机会帧的监听-抢占子帧的抢占时隙上发送的抢占序歹 ij ; 确定单元 102由于抢占资源与发现资源存在——对应关系，根据所述选择的抢占资源，确定所述选择的抢占资源对应的发现资源为占用状态，其他的发现资源为空闲状态。 In addition, optionally, as a different embodiment, the receiving unit 101 receives the preemption sequence ij sent by the UE on the preemption time slot of the interception-preemption subframe of the transmission opportunity frame by using the selected preemption resource; the determining unit 102 The discovery resource corresponding to the selected preemption resource is determined to be in an occupied state, and the other discovered resources are in an idle state, according to the preemptive resource that is selected by the preemptive resource and the discovered resource.

可选的，作为不同的实施例，接收单元 101接收的所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间还有蜂窝子帧间隔。 Optionally, as a different embodiment, in the sending opportunity frame received by the receiving unit 101, the listening-preempting subframe is before the transmitting subframe, and the listening-preempting subframe and the transmitting sub-frame There is also a cellular subframe interval between frames.

可选的，作为不同的实施例，接收单元 101接收的所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过监听-抢占子帧的第一个抢占时隙发送一次。 Optionally, as a different embodiment, in the sending opportunity frame received by the receiving unit 101, the listening-preempting subframe is before the transmitting subframe, and the listening-preempting subframe and the transmitting sub-frame There is no cell subframe interval between frames, and the preemption sequence of all UEs is sent once through the first preemption slot of the snoop-preemption subframe.

装置 100实现了方法 50, 通过监听竟争资源的 UE发送的发送机会帧，获得发现资源的占用和空闲状态，从而可以调度空闲状态的发现资源供其他未参与资源竟争的 UE使用，提高了资源的利用率。装置 100与装置 80或 90结合起来，在同一无线网络中，不仅可以提高资源的利用率，还可以节省 UE的功耗。 The device 100 implements the method 50, and obtains the occupied and idle state of the discovery resource by monitoring the transmission opportunity frame sent by the UE that competes for the resource, so that the discovery resource in the idle state can be scheduled for use by other UEs that do not participate in resource competition, thereby improving Utilization of resources. The device 100 is combined with the device 80 or 90. In the same wireless network, not only the resource utilization rate but also the power consumption of the UE can be saved.

图 11是本发明另一实施例的资源竟争的用户设备 110的示意框图。用户设备 110包括处理器 111、存储器 112和发送器 113。用户设备 110可以是移动电话、移动计算机等，能够实现本发明实施例的资源竟争的方法 10。 Figure 11 is a schematic block diagram of a user device 110 for resource contention in accordance with another embodiment of the present invention. User device 110 includes a processor 111, a memory 112, and a transmitter 113. The user equipment 110 can be a mobile phone, a mobile computer, etc., and can implement the method 10 of resource competition in embodiments of the present invention.

处理器 111可以是通用处理器、数字信号处理器（DSP )、专用集成电路 ( ASIC ), 现成可编程门阵列（FPGA )或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。，并通过总线与其他装置双向通信。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器 112, 处理器 111读取存储器 112中的信息，结合其硬件完成上述方法的步骤。存储器 112和处理器 111也可以整合成应用本发明实施例的物理模块，在该物理模块上存储和运行实现该本发明实施例的程序。 The processor 111 can be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready-to-use programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or executed. And communicate bidirectionally with other devices via the bus. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software modules can be located in conventional memory, such as random memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 112, and the processor 111 reads the information in the memory 112 and combines the hardware to perform the steps of the above method. Memory 112 and processor 111 may also be integrated into a physical module to which embodiments of the present invention are applied, on which the programs implementing the embodiments of the present invention are stored and executed.

存储器 112与所述处理器 111连接，用于存储所述处理器执行下述操作所需的指令。 A memory 112 is coupled to the processor 111 for storing instructions necessary for the processor to perform the operations described below.

处理器 111选择发送机会帧，其中所述发送机会帧包括监听 -抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙；通过分析所述监听 -抢占子帧的多个抢占时隙上不同用户设备的状态，确定所选择的发现资源为独占的发现资源。 The processor 111 selects a transmission opportunity frame, where the transmission opportunity frame includes a interception-preemption subframe and a transmission subframe, and the interception-preemption subframe includes multiple preemption slots; by analyzing the plurality of the interception-preemption subframes Preempt the state of different user equipments on the time slot, and determine that the selected discovery resource is an exclusive discovery resource.

发送器 113通过所述传输子帧在所述独占的发现资源上发送邻近身份指示码。 The transmitter 113 transmits the proximity identity indicator on the exclusive discovery resource through the transmission subframe.

可选的，装置 110还包括接收器 114。可选的，作为不同的实施例，发送器 113通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列，且所述接收器 114在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE没有选择相同的抢占资源，所述处理器 111根据抢占资源与发现资源存在——对应关系，则将所述选择的抢占资源对应的发现资源确定为独占的发现资源。 Optionally, the device 110 further includes a receiver 114. Optionally, as a different embodiment, the transmitter 113 sends a preemption sequence on the preemption time slot of the at least one of the multiple preemption slots by using the selected preemption resource, and the receiver 114 is in the The preemptive time slot of the at least one of the plurality of preemptive time slots is monitored to detect that the other UEs do not select the same preemptive resource, and the processor 111 selects the preemptive resource according to the presence of the preempted resource and the discovery resource. The discovery resources corresponding to the preempted resources are determined to be exclusive discovery resources.

可选的，作为不同的实施例，发送器 113通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列，且所述接收器 114在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE选择了相同的抢占资源，则所述发送器 113不再在后续的发送状态的抢占时隙上发送抢占序列。 Optionally, as a different embodiment, the transmitter 113 sends a preemption sequence on the preemption time slot of the at least one of the multiple preemption slots by using the selected preemption resource, and the receiver 114 is in the If the preemption time slot of the at least one of the plurality of preemption time slots is monitored and the other UEs select the same preemption resource, the transmitter 113 does not send the preemption sequence on the preemption time slot of the subsequent transmission state.

可选的，作为不同的实施例，发送器 113通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上以使用基站能够监听到的功率发送抢占序列。 Optionally, as a different embodiment, the transmitter 113 sends, by using the selected preemption resource, a preemption sequence on the preemption time slot of the at least one of the plurality of preemption slots to use the power that the base station can monitor.

可选的，作为不同的实施例，处理器 111选择以下的发送机会帧：根据参数 λ和门限百分比 Α确定一次选择之后最多允许选择相同发现资源的 UE 个数 k, 根据 k和 UE的选择监听或者发送的概率联合确定所述抢占时隙的个数，其中所述门限百分比 A为一个发现资源上有多个 UE的概率，所述参数 λ为竟争发现资源的 UE个数和发现资源个数的比值。 Optionally, as a different embodiment, the processor 111 selects the following transmission opportunity frame: according to the parameter λ and the threshold percentage Α, determine the number of UEs k that are allowed to select the same discovery resource after one selection, and monitor according to the selection of k and the UE. Or the probability of the transmission jointly determines the number of the preempted time slots, where the threshold percentage A is a probability that there are multiple UEs on one discovery resource, and the parameter λ is the number of UEs and the discovered resources that compete for the discovery resource. The ratio of the number.

可选的，作为不同的实施例，处理器 111具体用于选择以下的发送机会帧：所述抢占时隙个数为 k个 UE碰撞解决至 2个 UE碰撞解决所需的时隙个数的总和， k > 2。 Optionally, as a different embodiment, the processor 111 is specifically configured to select the following transmission opportunity frame: the number of the preempted time slots is the number of time slots required for the k UE collision resolution to be solved by two UE collisions. Sum, k > 2.

可选的，作为不同的实施例，处理器 111具体用于选择以下格式的发送机会帧：所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间还有蜂窝子帧间隔。 Optionally, as a different embodiment, the processor 111 is specifically configured to select a transmission opportunity frame in the following format: in the transmission opportunity frame, the interception-preemption subframe is in front of the transmission subframe, and the monitoring There is also a cellular subframe interval between the preempted subframe and the transmitted subframe.

可选的，作为不同的实施例，处理器 111选择以下格式的发送机会帧：所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间没有蜂窝子帧间隔，且所有的 UE的抢占序列要通过所述监听-抢占子帧的第一个抢占时隙发送一次。 Optionally, as a different embodiment, the processor 111 selects a transmission opportunity frame in the following format: in the transmission opportunity frame, the interception-preemption subframe is before the transmission subframe, and the interception-preemption sub-frame There is no cellular subframe interval between the frame and the transmission subframe, and the preemption sequence of all UEs is sent once through the first preemption slot of the interception-preemption subframe.

用户设备 110通过处理器选择的抢占资源，在发送机会帧的监听-抢占子帧中的一个抢占时隙上发送抢占序列，监听其他 UE使用的抢占资源；通过分析，确定选择的抢占资源的独占性，根据抢占资源与发现资源的一一对应关系，确定独占的发现资源；发送器通过发送机会帧的传输子帧在独占的发现资源上发送 D2Dcode; 由此减少了资源碰撞次数，进而 UE减少发射次数，节省了 UE的功耗。 The user equipment 110 sends a preemption sequence on a preemption time slot in the interception-preemption subframe of the transmission opportunity frame by using the preemption resource selected by the processor, and listens to the preemption resource used by other UEs; The analysis determines the exclusiveness of the selected preemptive resource, and determines the exclusive discovery resource according to the one-to-one correspondence between the preempted resource and the discovered resource; the transmitter sends the D2Dcode on the exclusive discovery resource by transmitting the transmission subframe of the opportunistic frame; The number of resource collisions is reduced, and the UE reduces the number of transmissions, thereby saving the power consumption of the UE.

图 12是本发明另一实施例的利用资源竟争的装置 120的示意框图。装置 120包括接收机 121、处理器 122和存储器 123。装置 120可以是网络侧设备，例如基站，与用户设备 110等构成无线网络。 Figure 12 is a schematic block diagram of an apparatus 120 for utilizing resource contention in accordance with another embodiment of the present invention. Apparatus 120 includes a receiver 121, a processor 122, and a memory 123. The device 120 may be a network side device, such as a base station, and constitute a wireless network with the user equipment 110 and the like.

接收机 121例如是无线接收机或无线收发设备。处理器 122可以是通用处理器、数字信号处理器（DSP )、专用集成电路（ASIC )、现成可编程门阵列（FPGA )或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图，并通过总线与其他装置双向通信。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器 123 ,处理器 122读取存储器 123中的信息，结合其硬件完成上述方法的步骤。存储器 123和处理器 122也可以整合成应用本发明实施例的物理模块，在该物理模块上存储和运行实现该本发明实施例的程序。 The receiver 121 is, for example, a wireless receiver or a wireless transceiver. The processor 122 can be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, The methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or executed and communicated bi-directionally with other devices over a bus. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 123, and the processor 122 reads the information in the memory 123 and combines the hardware to perform the steps of the above method. Memory 123 and processor 122 may also be integrated into a physical module to which embodiments of the present invention are applied, on which the programs implementing the embodiments of the present invention are stored and executed.

存储器 123存储处理器执行以下方法所需的指令。 The memory 123 stores instructions required by the processor to perform the following methods.

接收机 121接收机，用于接收 UE发送的发送机会帧，其中所述发送机会帧包括监听-抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙。 The receiver 121 is configured to receive a transmission opportunity frame sent by the UE, where the transmission mechanism frame includes a interception-preemption subframe and a transmission subframe, and the interception-preemption subframe includes multiple preemption slots.

处理器 122根据所述发送机会帧，确定发现资源的占用状态或空闲状态；调度空闲的发现资源。 The processor 122 determines an occupied state or an idle state of the discovered resource according to the transmission opportunity frame; and schedules an idle discovery resource.

装置 120通过监听竟争资源的 UE发送的发送机会帧，获得发现资源的占用和空闲状态，从而可以调度空闲状态的发现资源供其他未参与资源竟争的 UE使用，提高了资源的利用率。 The device 120 obtains the occupied and idle state of the discovery resource by monitoring the transmission opportunity frame sent by the UE that competes for the resource, so that the discovery resource in the idle state can be scheduled for use by other UEs that do not participate in resource competition, thereby improving resource utilization.

可选的，作为不同的实施例，接收机 121接收 UE通过选择的抢占资源，在所述发送机会帧的监听-抢占子帧的抢占时隙上发送的抢占序列；处理器 122由于抢占资源与发现资源存在一一对应关系，根据所述选择的抢占资源，确定所述选择的抢占资源对应的发现资源为占用状态，其他的发现资源为空闲状态。 Optionally, as a different embodiment, the receiver 121 receives a preemption sequence sent by the UE on the preemption time slot of the interception-preemption subframe of the transmission opportunity frame by using the selected preemption resource; the processor 122 is preempted by the resource and A one-to-one correspondence exists between the discovered resources, and according to the selected preemptive resources, The discovery resource corresponding to the selected preemption resource is determined to be in an occupied state, and the other discovered resources are in an idle state.

可选的，作为不同的实施例，接收机 121接收的所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间还有蜂窝子帧间隔。 Optionally, as a different embodiment, in the transmission opportunity frame received by the receiver 121, the interception-preemption subframe is before the transmission subframe, and the interception-preemption subframe and the transmission sub-frame There is also a cellular subframe interval between frames.

可选的，作为不同的实施例，接收机 121接收的所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过所述监听 -抢占子帧的第一个抢占时隙发送一次。 Optionally, as a different embodiment, in the transmission opportunity frame received by the receiver 121, the interception-preemption subframe is before the transmission subframe, and the interception-preemption subframe and the transmission sub-frame There is no cell subframe interval between frames, and the preemption sequence of all UEs is sent once through the first preemption slot of the snoop-preemption subframe.

装置 120实现了方法 50, 处理器通过接收机接收的竟争发现资源的 UE 的发送机会帧，获得发现资源的占用和空闲状态，从而可以调度空闲状态的发现资源供其他未参与资源竟争的 UE使用，提高了资源的利用率。 The device 120 implements the method 50, the processor obtains the occupied and idle state of the discovery resource by using the transmission opportunity frame of the UE that is the contention discovery resource received by the receiver, so that the idle state discovery resource can be scheduled for other non-participating resource competition. The use of the UE improves the utilization of resources.

装置 120与装置 80、 90或 110结合起来，在同一无线网络中，通过利用发送机会帧，不但可以提高无线资源的利用率，还可以节省 UE的功耗。 The device 120 is combined with the device 80, 90 or 110. In the same wireless network, by using the transmission opportunity frame, not only the utilization of the radio resources can be improved, but also the power consumption of the UE can be saved.

本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。 Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in a combination of electronic hardware or computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

所属领域的技术人员可以清楚地了解到，为描述的方便和筒洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。 It will be apparent to those skilled in the art that, for the convenience of the description and the cleaning process, the specific operation of the system, the device and the unit described above may be referred to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个 ***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。 In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.

所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。 The unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, may be located in one place. Or it can be distributed to multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。 In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备（可以是个人计算机，服务器，或者网络设备等）执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括： U盘、移动硬盘、只读存储器（ ROM, Read-Only Memory )、随机存取存储器（RAM, Random Access Memory ), 磁碟或者光盘等各种可以存储程序代码的介质。 The functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保护范围为准。 The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

权利要求 Rights request

1、一种资源竟争的方法，其特征在于，包括： 1. A method of resource competition, characterized by:

选择发送机会帧，其中所述发送机会帧包括监听-抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙； Selecting a transmission opportunity frame, wherein the transmission opportunity frame includes a monitoring-preemption subframe and a transmission subframe, and the monitoring-preemption subframe includes a plurality of preemption time slots;

通过分析所述监听-抢占子帧的多个抢占时隙上不同用户设备的状态，确定选择的发现资源为独占的发现资源； By analyzing the status of different user equipments on multiple preemption slots of the listening-preemption subframe, it is determined that the selected discovery resource is an exclusive discovery resource;

通过所述传输子帧在所述独占的发现资源上发送邻近身份指示码。 A neighbor identity indication code is sent on the exclusive discovery resource through the transmission subframe.

2、根据权利要求 1所述的方法，其特征在于，所述通过分析所述监听- 抢占子帧的多个抢占时隙上不同用户设备的状态，确定选择的发现资源为独占的发现资源，包括： 2. The method according to claim 1, characterized in that, by analyzing the status of different user equipments on multiple preemption time slots of the monitoring-preemption subframe, it is determined that the selected discovery resource is an exclusive discovery resource, include:

通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列， Through the selected preemption resource, the preemption sequence is sent on at least one preemption time slot of the sending state in the plurality of preemption time slots,

在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 Monitor other preemption time slots in at least one listening state among the plurality of preemption time slots.

UE没有选择相同的抢占资源，则确定所述选择的抢占资源对应的发现资源为独占的发现资源，其中抢占资源与发现资源存在一一对应关系。 If the UE does not select the same preemption resource, it is determined that the discovery resource corresponding to the selected preemption resource is an exclusive discovery resource, where there is a one-to-one correspondence between the preemption resource and the discovery resource.

3、根据权利要求 2所述的方法，其特征在于，进一步包括： 3. The method according to claim 2, further comprising:

在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE选择了相同的抢占资源，则不再在后续的发送状态的抢占时隙上发送抢占序列。 If it is detected that other UEs select the same preemption resource in at least one preemption time slot in the listening state among the plurality of preemption time slots, the preemption sequence will no longer be sent in subsequent preemption time slots in the sending state.

4、根据权利要求 2或 3所述的方法，其特征在于，所述通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列，包括： 4. The method according to claim 2 or 3, characterized in that, the selected preemption resource is used to send a preemption sequence on at least one preemption time slot in a sending state among the plurality of preemption time slots, including:

通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上以使用基站能够监听到的功率发送抢占序列。 Through the selected preemption resource, the preemption sequence is transmitted on the preemption time slot of at least one transmission state in the plurality of preemption time slots with power that can be heard by the base station.

5、根据权利要求 1至 4任一项所述的方法，其特征在于： 5. The method according to any one of claims 1 to 4, characterized in that:

所述抢占时隙的个数，为根据 k和 UE的选择监听或者发送的概率联合确定的，其中 k为根据参数 λ和门限百分比 Α确定的最多允许选择相同发现资源的 UE个数，所述门限百分比 A为一个发现资源上有多个 UE的概率，所述参数 λ为竟争发现资源的 UE个数和发现资源个数的比值。 The number of preempted time slots is determined jointly based on k and the probability of the UE selecting to listen or transmit, where k is the maximum number of UEs that are allowed to select the same discovery resource determined based on the parameter λ and the threshold percentage A, The threshold percentage A is the probability that there are multiple UEs on one discovery resource, and the parameter λ is the ratio of the number of UEs competing for the discovery resource to the number of discovery resources.

6、根据权利要求 5所述的方法，其特征在于： 6. The method according to claim 5, characterized in that:

所述抢占时隙个数为 k个 UE碰撞解决至 2个 UE碰撞解决所需的时隙个数的总和， k > 2。 The number of preemption time slots is the time slots required to resolve collisions of k UEs to 2 UEs. The sum of the numbers, k > 2.

7、根据权利要求 1至 6任一项所述的方法，其特征在于，所述监听-抢占子帧在所述传输子帧前，所述监听-抢占子帧和所述传输子帧之间还有蜂窝子帧间隔。 7. The method according to any one of claims 1 to 6, characterized in that: the monitoring-preemption subframe is before the transmission subframe, and between the monitoring-preemption subframe and the transmission subframe There is also cellular subframe spacing.

8、根据权利要求 1至 6任一项所述的方法，其特征在于，所述监听-抢占子帧在所述传输子帧前，所述监听-抢占子帧和所述传输子帧之间没有蜂窝子帧间隔，且所有的 UE的抢占序列要通过所述监听-抢占子帧的第一个抢占时隙发送一次。 8. The method according to any one of claims 1 to 6, characterized in that: the monitoring-preemption subframe is before the transmission subframe, and between the monitoring-preemption subframe and the transmission subframe There is no cellular subframe interval, and the preemption sequences of all UEs are sent once through the first preemption slot of the listening-preemption subframe.

9、一种利用资源竟争的方法，其特征在于，包括： 9. A method of utilizing resources to compete, characterized by:

接收 UE发送的发送机会帧，其中所述发送机会帧包括监听 -抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙； Receive a transmission opportunity frame sent by the UE, wherein the transmission opportunity frame includes a monitoring-preemption subframe and a transmission subframe, and the monitoring-preemption subframe includes multiple preemption time slots;

根据所述发送机会帧，确定发现资源的占用状态或空闲状态； Determine the occupied state or idle state of the discovery resource according to the sending opportunity frame;

调度空闲的发现资源。 Schedule idle discovery resources.

10、根据权利要求 9所述的方法，其特征在于，所述接收 UE发送的发送机会帧，包括： 10. The method according to claim 9, wherein the receiving a transmission opportunity frame sent by the UE includes:

接收 UE通过选择的抢占资源，在所述发送机会帧的监听-抢占子帧的抢占时隙上发送的抢占序列；根据所述发送机会帧，确定发现资源的占用状态或空闲状态包括： Receive the preemption sequence sent by the UE on the preemption time slot of the monitoring-preemption subframe of the transmission opportunity frame through the selected preemption resource; determine the occupied state or idle state of the discovery resource according to the transmission opportunity frame including:

确定所述选择的抢占资源对应的发现资源为占用状态，其他的发现资源为空闲状态，抢占资源与发现资源存在一一对应关系。 It is determined that the discovery resource corresponding to the selected preemption resource is in an occupied state, and other discovery resources are in an idle state. There is a one-to-one correspondence between the preemption resources and the discovery resources.

11、根据权利要求 9或 10所述的方法，其特征在于，所述监听-抢占子帧在所述传输子帧前，所述监听-抢占子帧和所述传输子帧之间还有蜂窝子帧间隔。 11. The method according to claim 9 or 10, characterized in that, the monitoring-preemption subframe is before the transmission subframe, and there is a cellular network between the monitoring-preemption subframe and the transmission subframe. Subframe interval.

12、根据权利要求 9或 10所述的方法，其特征在于，所述监听-抢占子帧在所述传输子帧前，所述监听-抢占子帧和所述传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过所述监听-抢占子帧的第一个抢占时隙发送一次。 12. The method according to claim 9 or 10, characterized in that, the monitoring-preemption subframe precedes the transmission subframe, and there is no cellular subframe between the monitoring-preemption subframe and the transmission subframe. During the frame interval, the preemption sequences of all UEs are sent once through the first preemption slot of the monitoring-preemption subframe.

13、一种用户设备 UE, 其特征在于，包括选择单元、确定单元和发送单元： 13. A user equipment UE, characterized in that it includes a selection unit, a determination unit and a sending unit:

所述选择单元，用于选择发送机会帧，其中所述发送机会帧包括监听- 抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙；所述确定单元，用于通过分析所述监听-抢占子帧的多个抢占时隙上不同用户设备的状态，确定所选择的发现资源为独占的发现资源； The selection unit is configured to select a transmission opportunity frame, wherein the transmission opportunity frame includes a monitoring-preemption subframe and a transmission subframe, and the monitoring-preemption subframe includes multiple preemption time slots; The determining unit is configured to determine that the selected discovery resource is an exclusive discovery resource by analyzing the status of different user equipments on multiple preemption time slots of the monitoring-preemption subframe;

所述发送单元，用于通过所述传输子帧在所述独占的发现资源上发送邻近身份指示码。 The sending unit is configured to send the neighbor identity indication code on the exclusive discovery resource through the transmission subframe.

14、根据权利要求 13所述的用户设备，其特征在于，所述用户设备还包括监听单元： 14. The user equipment according to claim 13, characterized in that the user equipment further includes a listening unit:

所述发送单元，具体用于通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列； The sending unit is specifically configured to send a preemption sequence on at least one preemption time slot in a sending state among the plurality of preemption time slots through the selected preemption resource;

所述监听单元，具体用于在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE有没有选择相同的抢占资源， The monitoring unit is specifically configured to monitor whether other UEs have selected the same preemption resource on at least one preemption time slot in the listening state among the plurality of preemption time slots,

所述确定单元，具体用于所述监听单元在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE没有选择相同的抢占资源时，根据抢占资源与发现资源存在的——对应关系，则将所述选择的抢占资源对应的发现资源确定为独占的发现资源。 The determining unit is specifically configured to: when the listening unit detects that other UEs do not select the same preemption resource on at least one preemption time slot in the listening state among the plurality of preemption time slots, determine whether the preemption resource exists and the discovery resource exists. - corresponding relationship, then the discovery resource corresponding to the selected preemption resource is determined as the exclusive discovery resource.

15、根据权利要求 14所述的用户设备，其特征在于，所述用户设备还包括控制单元： 15. The user equipment according to claim 14, characterized in that the user equipment further includes a control unit:

所述控制单元，用于在所述监听单元在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE没有选择相同的抢占资源时，控制所 The control unit is configured to control all preemption resources when the listening unit detects that other UEs do not select the same preemption resource on at least one preemption time slot in the listening state among the plurality of preemption time slots.

16、根据权利要求 14或 15所述的用户设备，其特征在于： 16. The user equipment according to claim 14 or 15, characterized in that:

所述发送单元，具体用于通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上以使用基站能够监听到的功率发送所述抢占序列。 The sending unit is specifically configured to use the selected preemption resource to send the preemption sequence on the preemption time slot of at least one transmission state among the plurality of preemption time slots using power that can be monitored by the base station.

17、根据权利要求 13至 16任一项所述的用户设备，其特征在于，所述选择单元具体用于选择以下的发送机会帧： 17. The user equipment according to any one of claims 13 to 16, characterized in that the selection unit is specifically used to select the following transmission opportunity frames:

所述发送机会帧中所述抢占时隙的个数，是为根据 k和 UE的选择监听或者发送的概率联合确定的，其中 k为根据参数 λ和门限百分比 Α确定的最多允许选择相同发现资源的 UE个数，所述门限百分比 A为一个发现资源上有多个 UE的概率，所述参数 λ为竟争发现资源的 UE个数和发现资源个数的比值。 The number of preemption slots in the transmission opportunity frame is jointly determined based on k and the probability of the UE selecting to listen or transmit, where k is the maximum allowed selection of the same discovery resource determined based on the parameter λ and the threshold percentage A. The number of UEs, the threshold percentage A is the probability that there are multiple UEs on one discovery resource, and the parameter λ is the ratio of the number of UEs competing for discovery resources to the number of discovery resources.

18、根据权利要求 17所述的用户设备，其特征在于，所述选择单元具体用于选择以下的发送机会帧： 18. The user equipment according to claim 17, characterized in that the selection unit The body is used to select the following sending opportunity frames:

所述发送机会帧中所述抢占时隙个数为 k个 UE碰撞解决至 2个 UE碰撞解决所需的时隙个数的总和， k > 2。 The number of preempted time slots in the transmission opportunity frame is the sum of the number of time slots required to resolve collisions of k UEs to 2 UEs, k > 2.

19、根据权利要求 13至 18任一项所述的用户设备，其特征在于，所述选择单元具体用于选择以下格式的发送机会帧： 19. The user equipment according to any one of claims 13 to 18, characterized in that the selection unit is specifically used to select a transmission opportunity frame in the following format:

所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间还有蜂窝子帧间隔。 In the transmission opportunity frame, the monitoring-preemption subframe precedes the transmission subframe, and there is a cellular subframe interval between the monitoring-preemption subframe and the transmission subframe.

20、根据权利要求 13至 18任一项所述的用户设备，其特征在于，所述选择单元具体用于选择以下格式的发送机会帧： 20. The user equipment according to any one of claims 13 to 18, characterized in that the selection unit is specifically used to select a transmission opportunity frame in the following format:

所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过所述监听-抢占子帧的第一个抢占时隙发送一次。 In the transmission opportunity frame, the monitoring-preemption subframe precedes the transmission subframe, and there is no cellular subframe interval between the monitoring-preemption subframe and the transmission subframe. The preemption sequences of all UEs To be sent once through the first preemption slot of the listening-preemption subframe.

21、一种利用资源竟争的装置，其特征在于，包括接收单元、确定单元和调度单元： 21. A device for utilizing resource competition, characterized in that it includes a receiving unit, a determining unit and a scheduling unit:

所述接收单元，用于接收 UE发送的发送机会帧，其中所述发送机会帧包括监听-抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙；所述确定单元，用于根据所述发送机会帧，确定发现资源的占用状态或空闲状态； The receiving unit is configured to receive a transmission opportunity frame sent by the UE, wherein the transmission opportunity frame includes a monitoring-preemption subframe and a transmission subframe, and the monitoring-preemption subframe includes multiple preemption time slots; the determining unit , used to determine the occupied state or idle state of the discovery resource according to the sending opportunity frame;

所述调度单元，用于调度空闲的发现资源。 The scheduling unit is used to schedule idle discovery resources.

22、根据权利要求 21所述的装置，其特征在于： 22. The device according to claim 21, characterized in that:

所述接收单元接收 UE通过选择的抢占资源，在所述发送机会帧的监听 -抢占子帧的抢占时隙上发送的抢占序列； The receiving unit receives the preemption sequence sent by the UE on the preemption slot of the monitoring-preemption subframe of the transmission opportunity frame through the selected preemption resource;

所述确定单元由于抢占资源与发现资源存在一一对应关系，根据所述选择的抢占资源，确定所述选择的抢占资源对应的发现资源为占用状态，其他的发现资源为空闲状态。 Since there is a one-to-one correspondence between preemption resources and discovery resources, the determination unit determines, according to the selected preemption resources, that the discovery resources corresponding to the selected preemption resources are in an occupied state, and that other discovery resources are in an idle state.

23、根据权利要求 21或 22所述的装置，其特征在于，所述接收单元接收的所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间还有蜂窝子帧间隔。 23. The device according to claim 21 or 22, characterized in that, in the transmission opportunity frame received by the receiving unit, the monitoring-preemption subframe precedes the transmission subframe, and the monitoring-preemption subframe precedes the transmission subframe, and the monitoring-preemption subframe is There is also a cellular subframe interval between the preemption subframe and the transmission subframe.

24、根据权利要求 21或 22所述的装置，其特征在于，所述接收单元接收的所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听-抢占子帧和所述传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过监听-抢占子帧的第一个抢占时隙发送一次。 24. The device according to claim 21 or 22, characterized in that, in the transmission opportunity frame received by the receiving unit, the monitoring-preemption subframe precedes the transmission subframe, and the monitoring-preemption subframe precedes the transmission subframe, and the monitoring-preemption subframe is There is no cellular subframe interval between the preemption subframe and the transmission subframe, and all UE preemption sequences To be sent once through the first preemption slot of the listening-preemption subframe.

25、一种用户设备，其特征在于，包括处理器、存储器和发送器：所述存储器，与所述处理器连接，用于存储所述处理器执行下述操作所需的指令； 25. A user equipment, characterized in that it includes a processor, a memory and a transmitter: the memory is connected to the processor and is used to store instructions required by the processor to perform the following operations;

所述处理器，用于选择发送机会帧，其中所述发送机会帧包括监听-抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙；通过分析所述监听-抢占子帧的多个抢占时隙上不同用户设备的状态，确定所选择的发现资源为独占的发现资源； The processor is configured to select a transmission opportunity frame, wherein the transmission opportunity frame includes a monitoring-preemption subframe and a transmission subframe, and the monitoring-preemption subframe includes multiple preemption slots; by analyzing the monitoring-preemption subframe The status of different user equipment on multiple preemption slots of the subframe determines that the selected discovery resource is an exclusive discovery resource;

所述发送器，用于通过所述传输子帧在所述独占的发现资源上发送邻近身份指示码。 The transmitter is configured to send a neighbor identity indicator code on the exclusive discovery resource through the transmission subframe.

26、根据权利要求 25所述的用户设备，其特征在于，还包括接收器：所述发送器通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列，且 26. The user equipment according to claim 25, further comprising a receiver: the transmitter uses the selected preemption resource to transmit in at least one preemption time slot in the transmission state among the plurality of preemption time slots. Send a preemption sequence, and

所述接收器在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE没有选择相同的抢占资源， The receiver detects that other UEs do not select the same preemption resource on at least one preemption time slot in the listening state among the plurality of preemption time slots,

所述处理器，具体用于根据抢占资源与发现资源存在一一对应关系，则将所述选择的抢占资源对应的发现资源确定为独占的发现资源。 The processor is specifically configured to determine the discovery resource corresponding to the selected preemption resource as an exclusive discovery resource based on the one-to-one correspondence between the preemption resource and the discovery resource.

27、根据权利要求 26所述的用户设备，其特征在于，还包括接收器：所述发送器通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上发送抢占序列，且 27. The user equipment according to claim 26, further comprising a receiver: the transmitter uses the selected preemption resource to transmit in at least one preemption time slot in the transmission state among the plurality of preemption time slots. Send a preemption sequence, and

所述接收器在所述多个抢占时隙中的至少一个监听状态的抢占时隙上监听到其他 UE选择了相同的抢占资源，则所述发送器不再在后续的发送状态的抢占时隙上发送抢占序列。 If the receiver detects that other UEs have selected the same preemption resource in at least one preemption time slot in the listening state among the plurality of preemption time slots, the transmitter will no longer preemption time slots in the subsequent sending state. Send a preemption sequence.

28、根据权利要求 26或 27所述的用户设备，其特征在于： 28. The user equipment according to claim 26 or 27, characterized in that:

所述发送器通过选择的抢占资源，在所述多个抢占时隙中的至少一个发送状态的抢占时隙上以使用基站能够监听到的功率发送抢占序列。 The transmitter uses the selected preemption resource to transmit the preemption sequence on the preemption time slot of at least one transmission state in the plurality of preemption time slots using power that the base station can monitor.

29、根据权利要求 25至 28任一项所述的用户设备，其特征在于，所述处理器选择以下的发送机会帧： 29. The user equipment according to any one of claims 25 to 28, characterized in that the processor selects the following sending opportunity frame:

根据参数 λ和门限百分比 Α确定一次选择之后最多允许选择相同发现资源的 UE个数 k, 根据 k和 UE的选择监听或者发送的概率联合确定所述抢占时隙的个数，其中所述门限百分比 A为一个发现资源上有多个 UE的概率，所述参数 λ为竟争发现资源的 UE个数和发现资源个数的比值。 Determine the maximum number k of UEs that are allowed to select the same discovery resource after one selection according to the parameter λ and the threshold percentage A, and jointly determine the number of preemption slots based on k and the probability of the UE choosing to listen or transmit, where the threshold percentage A is the probability that there are multiple UEs on a discovery resource, The parameter λ is the ratio of the number of UEs competing for discovery resources to the number of discovery resources.

30、根据权利要求 29所述的用户设备，其特征在于，所述处理器具体用于选择以下的发送机会帧： 30. The user equipment according to claim 29, characterized in that the processor is specifically configured to select the following sending opportunity frames:

所述抢占时隙个数为 k个 UE碰撞解决至 2个 UE碰撞解决所需的时隙个数的总和， k > 2。 The number of preempted time slots is the sum of the number of time slots required to resolve collisions of k UEs to 2 UEs, k > 2.

31、根据权利要求 25至 30任一项所述的用户设备，其特征在于，所述处理器具体用于选择以下格式的发送机会帧： 31. The user equipment according to any one of claims 25 to 30, characterized in that the processor is specifically configured to select a transmission opportunity frame in the following format:

32、根据权利要求 25至 30任一项所述的用户设备，其特征在于，所述处理器选择以下格式的发送机会帧： 32. The user equipment according to any one of claims 25 to 30, characterized in that the processor selects a transmission opportunity frame in the following format:

33、一种利用资源竟争的装置，其特征在于，包括接收机、处理器和存储器： 33. A device that utilizes resource competition, characterized by including a receiver, a processor and a memory:

所述存储器，用于存储处理器执行以下方法所需的指令； The memory is used to store instructions required by the processor to perform the following methods;

所述接收机，用于接收 UE发送的发送机会帧，其中所述发送机会帧包括监听-抢占子帧和传输子帧，所述监听-抢占子帧包括多个抢占时隙； The receiver is configured to receive a transmission opportunity frame sent by the UE, wherein the transmission opportunity frame includes a monitoring-preemption subframe and a transmission subframe, and the monitoring-preemption subframe includes multiple preemption time slots;

所述处理器，用于根据所述发送机会帧，确定发现资源的占用状态或空闲状态；调度空闲的发现资源。 The processor is configured to determine the occupied state or idle state of discovery resources according to the transmission opportunity frame; and schedule idle discovery resources.

34、根据权利要求 33所述的装置，其特征在于： 34. The device according to claim 33, characterized in that:

所述接收机接收 UE通过选择的抢占资源，在所述发送机会帧的监听- 抢占子帧的抢占时隙上发送的抢占序列； The receiver receives the preemption sequence sent by the UE on the preemption slot of the monitoring-preemption subframe of the transmission opportunity frame through the selected preemption resource;

所述处理器由于抢占资源与发现资源存在一一对应关系，根据所述选择的抢占资源，确定所述选择的抢占资源对应的发现资源为占用状态，其他的发现资源为空闲状态。 Since there is a one-to-one correspondence between preemption resources and discovery resources, the processor determines that the discovery resources corresponding to the selected preemption resources are in an occupied state and other discovery resources are in an idle state according to the selected preemption resources.

35、根据权利要求 33或 34所述的装置，其特征在于，所述接收机接收的所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听- 抢占子帧和所述传输子帧之间还有蜂窝子帧间隔。 35. The device according to claim 33 or 34, characterized in that, in the transmission opportunity frame received by the receiver, the monitoring-preemption subframe precedes the transmission subframe, and the monitoring-preemption subframe precedes the transmission subframe, and the monitoring-preemption subframe precedes the transmission subframe. There is also a cellular subframe interval between the preemption subframe and the transmission subframe.

36、根据权利要求 33或 34所述的装置，其特征在于，所述接收机接收的所述发送机会帧中，所述监听-抢占子帧在所述传输子帧前，且所述监听- 抢占子帧和所述传输子帧之间没有蜂窝子帧间隔，所有的 UE的抢占序列要通过监听-抢占子帧的第一个抢占时隙发送一次。 36. The device according to claim 33 or 34, characterized in that the receiver receives In the transmission opportunity frame, the monitoring-preemption subframe precedes the transmission subframe, and there is no cellular subframe interval between the monitoring-preemption subframe and the transmission subframe, and the preemption of all UEs The sequence is sent once through the first preemption slot of the listen-preemption subframe.