WO2017107636A1

WO2017107636A1 - Method and device for sharing downlink resources

Info

Publication number: WO2017107636A1
Application number: PCT/CN2016/102757
Authority: WO
Inventors: 苗婷; 刘星; 毕峰; 郁光辉; 胡斌杰; 吕及满; 魏纵横; 刘文基
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-12-21
Filing date: 2016-10-20
Publication date: 2017-06-29
Anticipated expiration: 2018-06-21
Also published as: CN106900063B; CN106900063A

Abstract

Disclosed in the present invention is a method for sharing downlink resources, which is to be applied on a station, comprising: obtaining configuration information of downlink contended shared spectrum resources; contending for an opportunity to send downlink data on contended time frequency resources according to the configuration information; upon winning said opportunity to send, sending the downlink data to contending sharing users on data transmission time frequency resources, wherein the downlink contended shared spectrum resources comprise at least one of the following resources: a contended time frequency resource, a dedicated control information time frequency resource and a data transmission time frequency resource. The present invention is able to dynamically allocate spectrum resources of neighboring cells for use in scheduling contending sharing users, so as to prevent interference among the neighboring cells.

Description

Downlink resource sharing method and device

Technical field

本发明涉及无线通信技术领域，尤其涉及的是一种下行资源共享方法和装置。The present invention relates to the field of wireless communication technologies, and in particular, to a downlink resource sharing method and apparatus.

Background technique

频谱动态性配置是未来网络的潜在技术特征，这是由于未来无线通信网络出于频谱使用效率以及可能向更高频段扩展的考虑，小区覆盖范围朝着更小的级别发展。小区内终端的数量变的更少，这意味着小区业务的突发性增强，小区级负载不再像传统网络那么的平稳，一个小区频谱资源需求大而相邻小区频谱资源需求小的情况会经常发生，进而提高了频谱资源需求的动态性。Spectrum dynamics configuration is a potential technical feature of future networks. Due to the future spectrum efficiency of wireless communication networks and the possibility of expanding to higher frequency bands, cell coverage is moving toward a smaller level. The number of terminals in the small area becomes less, which means that the bursting of the cell service is enhanced, the cell-level load is no longer as stable as the traditional network, the spectrum resource demand of one cell is large, and the spectrum resource demand of the neighboring cell is small. Frequent occurrences, which in turn increase the dynamics of spectrum resource requirements.

由于资源配置动态性的提高，小区间复用相同频谱情况下的干扰问题也会更加复杂，对小区间干扰协调和频谱资源共享技术也提出了更高的要求。软频率复用技术是一种解决小区间干扰和实现相邻小区频谱共享的重要方法，该技术将一个小区的频率资源分为两部分：一部分称为副载波，供小区中心用户使用；另一部分称为主载波，供小区边缘用户使用，并且也能以次优先级供小区中心用户使用。相邻小区的主载波相互正交，主载波的发射功率门限大于副载波的发射功率门限，也就是说，对于主载波可以设置相对较高的发射功率门限，以便较好地为小区边缘用户提供服务，由于相邻小区的主载波相互正交，因此相邻小区的边缘用户之间不会产生相互干扰，而对于副载波可以设置相对较低的发射功率门限，以免干扰相邻小区，该技术可以很好地减少小区边缘用户受到的干扰。Due to the improvement of resource allocation dynamics, the interference problem in the case of multiplexing the same spectrum between cells is more complicated, and higher requirements are also imposed on inter-cell interference coordination and spectrum resource sharing technologies. The soft frequency reuse technology is an important method for solving inter-cell interference and realizing spectrum sharing of neighboring cells. The technology divides the frequency resource of one cell into two parts: one part is called sub-carrier, which is used by the center user of the cell; the other part It is called the primary carrier and is used by the cell edge users, and can also be used by the cell center users with the second priority. The primary carriers of the neighboring cells are orthogonal to each other, and the transmit power threshold of the primary carrier is greater than the transmit power threshold of the secondary carrier, that is, a relatively high transmit power threshold can be set for the primary carrier, so as to better provide the cell edge user. Service, since the primary carriers of the neighboring cells are orthogonal to each other, no mutual interference occurs between the edge users of the neighboring cells, and a relatively low transmit power threshold can be set for the secondary carriers to avoid interference with adjacent cells. The interference experienced by users at the cell edge can be well reduced.

通常软频率复用方案有两种：1)固定的资源划分方式，即固定给每个小区划分一段相互正交的资源作为主载波，供小区边缘用户使用，例如小区边缘用户的频率复用因子为3，小区中心用户的频率复用因子为1，但是，这种资源划分方式不能根据每个小区的实际信道条件和干扰情况合理利用资源，例如当相邻的三个小区边缘用户数量差别较大时，可能出现边缘用户数量多的小区频谱资源不够用，边缘用户数量少的小区频谱资源剩余的情况；2)半静态的资源划分方式，即当小区的负载状况和干扰状况发生明显变化时调整每个小区的主载波的子载波数量。但是，在资源配置动态性要求较高时，这两种资源划分方式往往跟不上小区信道条件和干扰情况的变化。Generally, there are two types of soft frequency reuse schemes: 1) a fixed resource partitioning scheme, that is, each cell is fixedly divided into a mutually orthogonal resource as a primary carrier for use by a cell edge user, for example, a frequency reuse factor of a cell edge user. 3, the frequency reuse factor of the cell center user is 1, but this resource division mode cannot be based on the actual channel conditions and interference conditions of each cell. The use of resources, for example, when the number of adjacent three cell edge users is large, there may be insufficient spectrum resources of the cell with a large number of edge users, and the remaining spectrum resources of the number of edge users are small; 2) semi-static The resource division mode is to adjust the number of subcarriers of the primary carrier of each cell when the load condition and the interference condition of the cell change significantly. However, when resource dynamics requirements are high, the two resource partitioning methods often fail to keep up with changes in cell channel conditions and interference conditions.

除软频率复用方案外，已有蜂窝网络小区间干扰协调的方案多数也都是通过相邻小区交互网络状况信息(例如小区的负载状况、干扰状况等)，通过分布式协商调整各小区可以使用的频谱资源；或者，各小区都将自身网络状况上报给上层管理节点，由上层管理节点集中式调整各小区可以使用的频谱资源。但由于未来网络对资源配置动态性的提高，这种资源划分方式往往跟不上小区负载状况和干扰状况的变化，也就是说往往会发生这样的情况：小区频谱资源刚刚划分好，负载或者干扰状况又发生变化了，频谱资源的划分总是跟不上负载或者干扰状况变化的节奏，使得资源配置效率降低，系统的整体吞吐量受到较大影响。In addition to the soft frequency reuse scheme, most of the schemes for inter-cell interference coordination in the cellular network are also through the neighboring cell interaction network status information (such as the load status and interference status of the cell), and the cells can be adjusted through distributed negotiation. The spectrum resource used; or each cell reports its own network status to the upper management node, and the upper management node centrally adjusts the spectrum resources that can be used by each cell. However, due to the improvement of resource allocation dynamics in the future, this kind of resource division often cannot keep up with changes in cell load conditions and interference conditions. That is to say, it often happens that the cell spectrum resources have just been divided, load or interference. The situation has changed again. The division of spectrum resources can not keep up with the rhythm of load or interference changes, which makes the resource allocation efficiency lower and the overall throughput of the system is greatly affected.

另外，现有基于竞争的频谱共享的方法主要有WLAN(Wireless Local Area Networks，无线局域网)系统内的基于竞争的方法，以及LAA(Licensed Assisted Access，授权辅助接入)系统基于竞争使用WLAN系统正在使用的免授权频谱的方法。这两种基于竞争的方法通常都是针对整个系统带宽(WLAN的系统带宽)进行竞争。如果将这种全系统带宽竞争机制应用于现有的无线通信系统中小区间干扰协调，则相邻小区使用的频谱资源完全正交，与现有相邻小区的中心用户可以复用相同时频资源相比，频谱利用率较低。In addition, the existing contention-based spectrum sharing method mainly includes a contention-based method in a WLAN (Wireless Local Area Networks) system, and a LAA (Licensed Assisted Access) system based on competitive use of a WLAN system. The method of using the unlicensed spectrum. Both of these contention-based approaches typically compete for the entire system bandwidth (the system bandwidth of the WLAN). If the system-wide bandwidth competition mechanism is applied to the inter-cell interference coordination in the existing wireless communication system, the spectrum resources used by the neighboring cells are completely orthogonal, and the central users of the existing neighboring cells can reuse the same time-frequency resources. In comparison, the spectrum utilization is lower.

发明内容Summary of the invention

本发明实施例所要解决的技术问题是提供一种下行资源共享方法和装置，能够动态地分配相邻小区用于调度竞争共享用户的频谱资源，避免了相邻小区之间的相互干扰。 The technical problem to be solved by the embodiments of the present invention is to provide a downlink resource sharing method and device, which can dynamically allocate neighboring cells for scheduling spectrum resources of a contention sharing user, and avoid mutual interference between adjacent cells.

本发明实施例提供了一种下行资源共享方法，应用于站点，包括：The embodiment of the invention provides a downlink resource sharing method, which is applied to a site, and includes:

获取下行竞争共享频谱资源的配置信息；Obtaining configuration information of downlink competitive shared spectrum resources;

根据所述配置信息在竞争时频资源上竞争发送下行数据的机会；Competing for the opportunity to send downlink data on the competitive time-frequency resource according to the configuration information;

在竞争到所述发送机会后，在数据传输时频资源上向竞争共享用户发送下行数据；After competing for the sending opportunity, sending downlink data to the contention sharing user on the data transmission time-frequency resource;

其中，所述下行竞争共享频谱资源包括以下资源的至少一种：竞争时频资源、专用控制信息时频资源和数据传输时频资源。The downlink contention shared spectrum resource includes at least one of the following resources: a competitive time-frequency resource, a dedicated control information time-frequency resource, and a data transmission time-frequency resource.

可选地，所述下行竞争共享频谱资源的配置信息，包括以下信息的至少一种：Optionally, the configuration information of the downlink contention shared spectrum resource includes at least one of the following information:

竞争时频资源的时频范围、专用控制信息时频资源的时频范围、数据传输时频资源的时频范围、下行竞争共享频谱资源所在的子帧、竞争时频资源上的传输配置、竞争时频资源上传输竞争成功消息占用的频域范围、竞争时频资源上传输竞争成功消息占用的时域范围、退避计数器在频域上的退避顺序、退避计数器类型。Time-frequency range of competing time-frequency resources, time-frequency range of time-frequency resources of dedicated control information, time-frequency range of time-frequency resources of data transmission, subframes in which downlink shared spectrum resources are located, transmission configuration on competitive time-frequency resources, and competition The frequency domain range occupied by the communication success message on the time-frequency resource, the time domain range occupied by the transmission competition success message on the contention time-frequency resource, the back-off sequence of the back-off counter in the frequency domain, and the back-off counter type.

可选地，所述下行竞争共享频谱资源满足以下a)-d)条件中的至少一个：Optionally, the downlink contention shared spectrum resource satisfies at least one of the following a)-d) conditions:

a)竞争时频资源、专用控制信息时频资源和数据传输时频资源正交；a) competing time-frequency resources, dedicated control information, time-frequency resources, and data transmission time-frequency resources are orthogonal;

b)在一个竞争期内，竞争时频资源和数据传输时频资源成对出现，且配置为一对或者多对竞争时频资源和数据传输时频资源，相邻小区的竞争时频资源和数据传输时频资源相同；b) During a competition period, competing time-frequency resources and data transmission time-frequency resources appear in pairs, and are configured as one or more pairs of competing time-frequency resources and data transmission time-frequency resources, and competing time-frequency resources of adjacent cells and The data transmission time and frequency resources are the same;

c)在一个竞争期内，一个小区配置一块专用控制信息时频资源；c) during a competition period, a cell is configured with a dedicated control information time-frequency resource;

d)在一个竞争期内，在时域上竞争时频资源位于专用控制信息时频资源和数据传输时频资源之前。d) During a competition period, the time-frequency resources in the time domain are located in front of the dedicated control information time-frequency resources and the data transmission time-frequency resources.

可选地，获取下行竞争共享频谱资源的配置信息，包括采用以下任意一种方式进行获取：Optionally, obtaining configuration information of the downlink contention shared spectrum resource, including acquiring in any one of the following manners:

a)从上层管理节点获取下行竞争共享频谱资源的配置信息； a) obtaining configuration information of the downlink contention shared spectrum resource from the upper management node;

b)在与相邻站点进行协商后确定下行竞争共享频谱资源的配置；b) determining the configuration of the downlink contention shared spectrum resource after negotiating with the neighboring station;

c)从指定站点获取下行竞争共享频谱资源的配置信息。c) Obtain configuration information of the downlink contention shared spectrum resource from the designated station.

可选地，在竞争到所述发送机会后，所述方法还包括：Optionally, after competing for the sending opportunity, the method further includes:

向竞争共享用户发送下行竞争共享频谱资源配置消息，其中携带下行竞争共享频谱资源配置信息。Sending a downlink contention shared spectrum resource configuration message to the contention sharing user, where the downlink contention shared spectrum resource configuration information is carried.

可选地，在竞争发送下行数据的机会之前，所述方法还包括：Optionally, before competing for the opportunity to send downlink data, the method further includes:

在专用控制信息时频资源上向竞争共享用户发送与所述下行数据相关的控制信息。Control information related to the downlink data is sent to the contention sharing user on the dedicated control information time-frequency resource.

可选地，在竞争时频资源上竞争发送下行数据的机会，包括：Optionally, the opportunity to compete for sending downlink data on the competitive time-frequency resource includes:

在竞争时频资源上运行竞争算法，如果竞争成功，则能够在竞争时频资源对应的数据传输时频资源上调度下属竞争共享用户。The competition algorithm is run on the competition time-frequency resource. If the competition is successful, the subordinate competition sharing user can be scheduled on the data transmission time-frequency resource corresponding to the competition time-frequency resource.

可选地，所述在竞争时频资源上运行竞争算法，包括：Optionally, the running the competition algorithm on the competitive time-frequency resource includes:

当退避计数器类型为按时间退避时，竞争时频资源的时间到达时，竞争规则如下：所述退避计数器开始执行退避，当退避计数器为零时，在竞争时频资源上发送竞争成功消息，并在竞争时频资源上持续监听一段时间T，如果在时间T内没有收到其它站点发送的竞争成功消息，则竞争成功，重置退避计数器作为下次竞争时退避计数器的初始值；如果在时间T内收到其它站点发送的竞争成功消息，则将退避计数器置为选定的随机数，继续按照竞争规则参与竞争；或者When the backoff counter type is time-backed, when the time of the competing time-frequency resource arrives, the contention rule is as follows: the back-off counter starts performing back-off, and when the back-off counter is zero, the contention success message is sent on the contention time-frequency resource, and If the competition success message sent by other stations is not received within the time T, the competition is successful, and the backoff counter is reset as the initial value of the backoff counter at the next competition; if at the time After receiving the contention success message sent by other stations in T, the backoff counter is set to the selected random number and continues to compete according to the competition rules; or

当退避计数器类型为按时间退避时，如果在退避过程中收到其它站点发送的竞争成功消息，则冻结退避计数器，等待下一个竞争时频资源的时间到达，继续参与竞争；或者When the backoff counter type is backoff by time, if a contention success message sent by another station is received during the backoff process, the backoff counter is frozen, waiting for the time of the next competing time-frequency resource to arrive, and continuing to participate in the competition; or

当退避计数器类型为按竞争资源块退避时，根据所述退避计数器的值确定发送竞争成功消息占用竞争资源块的编号，然后采取预定的竞争规则竞争数据传输时频资源。When the backoff counter type is backed off by the contention resource block, according to the value of the backoff counter Determining that the transmission competition success message occupies the number of the competition resource block, and then adopting a predetermined competition rule to compete for data transmission time-frequency resources.

可选地，所述采取预定的竞争规则竞争数据传输时频资源，包括：Optionally, the taking the predetermined contention rule to compete for data transmission time-frequency resources includes:

a)如果在发送竞争成功消息之前收到了其它通信站点发送的竞争成功消息，则将退避计数器减k，k为所述通信站点检测到的竞争成功消息占用的竞争资源块的最小编号，然后冻结所述退避计数器，等待下一个竞争时频资源的时间到达，继续参与竞争；a) If a contention success message sent by another communication station is received before the contention success message is sent, the backoff counter is decremented by k, k is the minimum number of the contention resource block occupied by the contention success message detected by the communication station, and then frozen The backoff counter waits for the time of the next competing time-frequency resource to arrive, and continues to participate in the competition;

b)如果发送竞争成功消息后在一段时间T内没有收到其它站点发送的竞争成功消息，则竞争成功，重置退避计数器作为下次竞争时退避计数器的初始值；b) if the contention success message sent by other stations is not received within a period of time T after the contention success message is sent, the contention is successful, and the backoff counter is reset as the initial value of the backoff counter at the next competition;

c)如果发送竞争成功消息后在一段时间T内收到其它站点发送的竞争成功消息，则将自己发送竞争成功消息占用的竞争资源块的编号与其它站点发送竞争成功消息占用的竞争资源块的编号比较大小，根据比较结果进行处理。c) If a contention success message sent by another station is received within a period of time T after the contention success message is sent, the number of the contention resource block occupied by the contention success message is sent to the contention block of the competition resource occupied by the other station. The number is compared and the size is processed according to the comparison result.

可选地，所述根据比较结果进行处理，包括：Optionally, the processing is performed according to the comparison result, including:

a)当发送竞争成功消息占用的竞争资源块编号小于其它通信站点发送竞争成功消息占用的竞争资源块编号时，竞争成功，重置退避计数器作为下次竞争时退避计数器的初始值；a) when the contention of the contending resource block occupied by the contention success message is smaller than the contention of the contending resource block occupied by the other communication station, the competition is successful, and the backoff counter is reset as the initial value of the backoff counter at the next competition;

b)当发送竞争成功消息占用的竞争资源块编号大于其它通信站点发送竞争成功消息占用的竞争资源块编号时，将所述退避计数器减k，k为检测到的竞争成功消息占用的竞争资源块的最小编号，然后冻结所述退避计数器，等待下一个竞争时频资源的时间到达，继续参与竞争；b) when the contention of the contention of the contention of the contention of the competition success message is greater than that of the other communication station, the k-k is the contention of the competition resource occupied by the detected contention success message. The minimum number, then freeze the backoff counter, wait for the next competitive time-frequency resource to arrive, and continue to participate in the competition;

c)当发送竞争成功消息占用的竞争资源块编号最小，且与至少一个其它通信站点发送竞争成功消息占用的竞争资源块编号相等时，重置退避计数器，且退避计数器的值位于竞争时频资源的剩余时间内竞争资源块的最小和最大编号之间，继续参与竞争。c) resetting the backoff counter when the contention of the contention block used by the contention success message is the smallest, and the value of the backoff counter is located in the competitive time-frequency resource when the contention of the contention of the contention is equal to that of the at least one other communication station. Between the minimum and maximum number of competing resource blocks in the remaining time, continue to participate in the competition.

可选地，在一个竞争期内，当配置一对竞争时频资源和数据传输时频资源时，相邻小区的专用控制信息时频资源相同或正交；当配置多于一对竞争时频资源和数据传输时频资源时，相邻小区的专用控制信息时频资源正交。Optionally, during a contention period, when configuring a pair of competing time-frequency resources and data transmission time-frequency When resources are used, the time-frequency resources of the dedicated control information of the neighboring cells are the same or orthogonal; when more than one pair of competing time-frequency resources and data transmission time-frequency resources are configured, the time-frequency resources of the dedicated control information of the neighboring cells are orthogonal.

本发明实施例还提供了一种下行资源共享方法，应用于用户设备，包括：The embodiment of the invention further provides a downlink resource sharing method, which is applied to user equipment, and includes:

接收站点发送的下行竞争共享频谱资源配置消息，所述消息中携带下行竞争共享频谱资源配置信息；Receiving a downlink contention shared spectrum resource configuration message sent by the station, where the message carries downlink contention spectrum resource configuration information;

根据所述配置信息在专用控制信息时频资源上检测到控制信息后，根据所述控制信息在数据传输时频资源上接收下行数据；After detecting the control information on the dedicated control information time-frequency resource according to the configuration information, receiving downlink data on the data transmission time-frequency resource according to the control information;

可选地，所述方法还包括：Optionally, the method further includes:

根据所述配置信息在专用控制信息时频资源上未检测到控制信息，则等待下一个专用控制信息时频资源的时间到达后，继续在所述下一个专用控制信息时频资源上检测控制信息。If the control information is not detected on the dedicated control information time-frequency resource according to the configuration information, wait for the time of the next dedicated control information time-frequency resource to arrive, and continue to detect the control information on the next dedicated control information time-frequency resource. .

可选地，根据所述配置信息在专用控制信息时频资源上检测控制信息之前，所述方法还包括：Optionally, before detecting the control information on the dedicated control information time-frequency resource according to the configuration information, the method further includes:

在竞争时频资源上监听竞争成功消息，如监听到服务小区的竞争成功消息，则在服务小区的专用控制信息时频资源上检测控制信息。 The contention success message is monitored on the contention time resource, and if the contention success message of the serving cell is monitored, the control information is detected on the time-frequency resource of the dedicated control information of the serving cell.

可选地，所述方法还包括：Optionally, the method further includes:

根据所述配置信息对数据传输时频资源所在的频段进行信道质量测量，将测量结果上报给服务站点；Performing channel quality measurement on the frequency band in which the data transmission time-frequency resource is located according to the configuration information, and reporting the measurement result to the service site;

其中，所述测量结果用于所述服务站点为所述竞争共享用户分配时频资源，确定下行数据的调制编码方式。The measurement result is used by the service station to allocate time-frequency resources to the contention sharing user, and determine a modulation and coding manner of downlink data.

本发明实施例还提供了一种下行资源共享装置，应用于站点，包括：The embodiment of the invention further provides a downlink resource sharing device, which is applied to a site, and includes:

配置模块，设置为获取下行竞争共享频谱资源的配置信息；The configuration module is configured to obtain configuration information of the downlink contention shared spectrum resource;

竞争模块，设置为根据所述配置信息在竞争时频资源上竞争发送下行数据的机会；a competition module, configured to compete for the opportunity to send downlink data on the competitive time-frequency resource according to the configuration information;

发送模块，设置为在竞争到所述发送机会后，在数据传输时频资源上向竞争共享用户发送下行数据；a sending module, configured to send downlink data to the contention sharing resource on the data transmission time-frequency resource after competing for the sending opportunity;

可选地，配置模块，设置为获取下行竞争共享频谱资源的配置信息，包括采用以下任意一种方式进行获取：Optionally, the configuration module is configured to obtain the configuration information of the downlink contention shared spectrum resource, including obtaining the following manner:

a)从上层管理节点获取下行竞争共享频谱资源的配置信息；a) obtaining configuration information of the downlink contention shared spectrum resource from the upper management node;

可选地，所述装置还包括第一通知模块：Optionally, the device further includes a first notification module:

所述第一通知模块，设置为在竞争到所述发送机会后，向竞争共享用户发送下行竞争共享频谱资源配置消息，或者在竞争发送下行数据的机会之前，向竞争共享用户发送下行竞争共享频谱资源配置消息；The first notification module is configured to: after contending for the sending opportunity, send a downlink contention shared spectrum resource configuration message to the contention sharing user, or send a downlink contention shared spectrum to the contention sharing user before contending to send the downlink data opportunity. Resource configuration message;

其中，所述下行竞争共享频谱资源配置消息中携带下行竞争共享频谱资源配置信息。The downlink contention shared spectrum resource configuration message carries the downlink contention shared spectrum resource configuration information.

可选地，所述装置还包括第二通知模块： Optionally, the device further includes a second notification module:

所述第二通知模块，设置为在竞争到所述发送机会后，在专用控制信息时频资源上向竞争共享用户发送与所述下行数据相关的控制信息。The second notification module is configured to, after competing for the sending opportunity, send control information related to the downlink data to the contention sharing user on the dedicated control information time-frequency resource.

可选地，竞争模块，设置为在竞争时频资源上竞争发送下行数据的机会，包括：Optionally, the contention module is set to compete for the opportunity to send downlink data on the contention time-frequency resource, including:

可选地，竞争模块，设置为在竞争时频资源上运行竞争算法，包括：Optionally, the contention module is configured to run a competition algorithm on the competitive time-frequency resource, including:

当退避计数器类型为按竞争资源块退避时，根据所述退避计数器的值确定发送竞争成功消息占用竞争资源块的编号，然后采取预定的竞争规则竞争数据传输时频资源。When the backoff counter type is backed by the contention resource block, the number of the contention competition resource block is determined according to the value of the backoff counter, and then the predetermined contention rule is used to compete for the data transmission time-frequency resource.

可选地，竞争模块，设置为采取预定的竞争规则竞争数据传输时频资源，包括：Optionally, the contention module is configured to compete for data transmission time-frequency resources by adopting a predetermined contention rule, including:

b)如果发送竞争成功消息后在一段时间T内没有收到其它站点发送的竞争成功消息，则竞争成功，重置退避计数器作为下次竞争时退避计数器的初始值；b) If the competition success message is sent, it will not be sent by other stations within a certain period of time T The competition success message, the competition is successful, and the backoff counter is reset as the initial value of the backoff counter at the next competition;

可选地，竞争模块，设置为根据比较结果进行处理，包括：Optionally, the contention module is set to be processed according to the comparison result, including:

本发明实施例还提供了一种下行资源共享装置，应用于用户设备，包括：The embodiment of the invention further provides a downlink resource sharing device, which is applied to user equipment, and includes:

配置信息获取模块，设置为接收站点发送的下行竞争共享频谱资源配置消息，所述消息中携带下行竞争共享频谱资源配置信息；The configuration information obtaining module is configured to receive a downlink contention shared spectrum resource configuration message sent by the station, where the message carries the downlink contention shared spectrum resource configuration information;

控制信息检测模块，设置为根据所述配置信息在专用控制信息时频资源上检测控制信息；The control information detecting module is configured to detect the control information on the time-frequency resource of the dedicated control information according to the configuration information;

数据接收模块，设置为在专用控制信息时频资源上检测到控制信息后，根据所述控制信息在数据传输时频资源上接收下行数据； The data receiving module is configured to: after detecting the control information on the time-frequency resource of the dedicated control information, receive the downlink data on the data transmission time-frequency resource according to the control information;

可选地，控制信息检测模块，设置为在专用控制信息时频资源上未检测到控制信息，则等待下一个专用控制信息时频资源的时间到达后，继续在所述下一个专用控制信息时频资源上检测控制信息。Optionally, the control information detecting module is configured to not control the control information on the time-frequency resource of the dedicated control information, and wait for the time of the next dedicated control information time-frequency resource to arrive, and then continue in the next dedicated control information. The control information is detected on the frequency resource.

可选地，所述装置还包括：Optionally, the device further includes:

监听模块，设置为在专用控制信息时频资源上检测控制信息之前，在竞争时频资源上监听竞争成功消息，如监听到服务小区的竞争成功消息，则通知控制信息检测模块在服务小区的专用控制信息时频资源上检测控制信息。The monitoring module is configured to monitor the contention success message on the contention time-frequency resource before detecting the control information on the time-frequency resource of the dedicated control information, such as monitoring the contention success message of the serving cell, and notifying the control information detecting module of the serving cell The control information is detected on the time-frequency resource of the control information.

可选地，所述装置还包括：Optionally, the device further includes:

测量及上报模块，设置为根据所述配置信息对数据传输时频资源所在的频段进行信道质量测量，将测量结果上报给服务站点；The measuring and reporting module is configured to perform channel quality measurement on the frequency band in which the data transmission time-frequency resource is located according to the configuration information, and report the measurement result to the service site;

在本发明实施例中，还提供了一种计算机存储介质，该计算机存储介质可以存储有执行指令，该执行指令用于执行上述实施例中的下行资源共享方法的实现。In an embodiment of the present invention, a computer storage medium is further provided, and the computer storage medium may store an execution instruction, where the execution instruction is used to implement the implementation of the downlink resource sharing method in the foregoing embodiment.

与现有技术相比，本发明实施例提供的一种下行资源共享方法和装置，通过相邻小区配置相同的竞争时频资源和专用控制信息时频资源对，相邻小区的通信站点通过竞争获得数据传输时频资源上的发送机会，可以较动态地分配相邻小区用于调度竞争共享用户的频谱资源，同时避免了相邻小区之间的相互干扰；另外，没有参与竞争的通信站点可以在满足一定功率限制的条件下使用数据传输时频资源，进一步提高了频谱资源的利用率。 Compared with the prior art, a downlink resource sharing method and apparatus provided by an embodiment of the present invention configures the same contention time-frequency resource and dedicated control information time-frequency resource pair by neighboring cells, and the communication sites of the neighboring cells compete through Obtaining the transmission opportunity on the time-frequency resource of the data transmission, the spectrum of the neighboring cell for scheduling the contention of the user may be allocated more dynamically, and the mutual interference between the neighboring cells is avoided; in addition, the communication station that does not participate in the competition may The use of data transmission time-frequency resources under conditions that meet certain power constraints further improves the utilization of spectrum resources.

DRAWINGS

图1为本发明实施例的一种下行资源共享方法流程图(站点)；FIG. 1 is a flowchart (station) of a downlink resource sharing method according to an embodiment of the present invention;

图2为本发明实施例的一种下行资源共享方法流程图(用户设备)；2 is a flowchart (user equipment) of a downlink resource sharing method according to an embodiment of the present invention;

图3为本发明实施例的一种下行资源共享装置示意图(站点)；3 is a schematic diagram (station) of a downlink resource sharing apparatus according to an embodiment of the present invention;

图4为本发明实施例的一种下行资源共享装置示意图(用户设备)；4 is a schematic diagram of a downlink resource sharing device (user equipment) according to an embodiment of the present invention;

图5本发明对应的应用场景示意图；Figure 5 is a schematic diagram of an application scenario corresponding to the present invention;

图6为本发明示例一、二、三所对应的下行竞争共享频谱资源的配置示意图；6 is a schematic diagram of configuration of downlink contention shared spectrum resources corresponding to examples one, two, and three of the present invention;

图7为本发明示例四所对应的下行竞争共享频谱资源的配置示意图；7 is a schematic diagram of a configuration of a downlink contention shared spectrum resource corresponding to example 4 of the present invention;

图8为本发明示例五所对应的下行竞争共享频谱资源的配置示意图；8 is a schematic diagram of configuration of downlink contention shared spectrum resources corresponding to example 5 of the present invention;

图9为本发明示例六所对应的下行竞争共享频谱资源的配置示意图；9 is a schematic diagram of a configuration of a downlink contention shared spectrum resource corresponding to Example 6 of the present invention;

图10为本发明示例七所对应的下行竞争共享频谱资源的配置示意图；10 is a schematic diagram of a configuration of a downlink contention shared spectrum resource corresponding to Example 7 of the present invention;

图11为本发明示例七所对应的竞争时频资源划分后竞争资源块的编号示意图。FIG. 11 is a schematic diagram of numbering of a contention of a competitive resource block after contention of a time-frequency resource corresponding to the seventh embodiment of the present invention.

detailed description

为使本发明的目的、技术方案和优点更加清楚明白，下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

如图1所示，本发明实施例提供了一种下行资源共享方法，应用于站点，包括：As shown in FIG. 1 , an embodiment of the present invention provides a downlink resource sharing method, which is applied to a site, and includes:

S101，获取下行竞争共享频谱资源的配置信息；S101. Acquire configuration information of a downlink contention shared spectrum resource.

S102，根据所述配置信息在竞争时频资源上竞争发送下行数据的机会； S102. Compete for the opportunity to send downlink data on the competitive time-frequency resource according to the configuration information.

S103，在竞争到所述发送机会后，在数据传输时频资源上向竞争共享用户发送下行数据；S103. After competing for the sending opportunity, send downlink data to the contention sharing user on the data transmission time-frequency resource.

其中，所述下行竞争共享频谱资源包括以下资源的至少一种：竞争时频资源、专用控制信息时频资源和数据传输时频资源；The downlink contention shared spectrum resource includes at least one of the following resources: a competitive time-frequency resource, a dedicated control information time-frequency resource, and a data transmission time-frequency resource;

其中，所述竞争时频资源用于站点通过竞争获得在所述竞争时频资源对应的数据传输时频资源上的发送机会；The contention time-frequency resource is used by the station to obtain a transmission opportunity on the data transmission time-frequency resource corresponding to the contention time-frequency resource through competition;

其中，所述专用控制信息时频资源用于竞争成功的站点向下属竞争共享用户发送控制信息，以便所述竞争共享用户根据所述控制信息接收下行数据；The dedicated control information time-frequency resource is used to compete for a successful site to send control information to a subordinate contention shared user, so that the contention-shared user receives downlink data according to the control information;

其中，所述数据传输时频资源用于在其对应的竞争时频资源上竞争成功的站点向下属竞争共享用户发送下行数据；The data transmission time-frequency resource is used to send downlink data to a subordinate competing shared user that competes successfully on its corresponding competing time-frequency resource;

其中，下行竞争共享频谱资源配置消息可以在站点竞争下行数据发送机会之前发送给竞争共享用户，竞争共享用户在竞争时频资源上监听竞争成功消息，如果监听到服务站点发送的竞争成功消息，则检测专用控制信息时频资源上的控制信息，根据控制信息接收下行数据，如果没有监听到服务站点发送的竞争成功消息，则不用接收下行数据；或者，竞争共享用户直接在专用控制信息时频资源上检测控制信息，如果检测到控制信息，则根据所述控制信息在数据传输时频资源上接收下行数据，如果没有检测到控制信息，则不用接收下行数据；The downlink contention shared spectrum resource configuration message may be sent to the contention-successful user before the site contends for the downlink data transmission opportunity, and the contention-successful user listens to the competition success message on the contention time-frequency resource, and if the competition success message sent by the service station is monitored, The control information on the time-frequency resource of the dedicated control information is detected, and the downlink data is received according to the control information. If the contention success message sent by the service station is not monitored, the downlink data is not received; or the contention resource is directly used in the dedicated control information. And detecting the control information, if the control information is detected, receiving the downlink data on the data transmission time-frequency resource according to the control information, and if the control information is not detected, not receiving the downlink data;

也即，在竞争发送下行数据的机会之前，所述方法还包括：That is, before competing for the opportunity to send downlink data, the method further includes:

向竞争共享用户发送下行竞争共享频谱资源配置消息，其中携带下行竞争共享频谱资源配置信息；Sending a downlink contention shared spectrum resource configuration message to the contention sharing user, where the downlink contention shared spectrum resource configuration information is carried;

其中，下行竞争共享频谱资源配置消息也可以在站点竞争到下行数据发送机会后再发送给竞争共享用户；如果站点没有竞争到下行数据发送机会，则可以不向竞争共享用户发送下行竞争共享频谱资源配置消息；The downlink contention shared spectrum resource configuration message may also be sent to the contention user after the site contends to the downlink data transmission opportunity; if the site does not compete for the downlink data transmission opportunity, the downlink contention shared spectrum resource may not be sent to the contention sharing user. Configuration message;

也即，在竞争到所述发送机会后，所述方法还包括： That is, after competing for the sending opportunity, the method further includes:

其中，在竞争到所述发送机会后，所述方法还包括：The method further includes: after competing for the sending opportunity, the method further includes:

在专用控制信息时频资源上向竞争共享用户发送与所述下行数据相关的控制信息；Transmitting control information related to the downlink data to the contention sharing user on the dedicated control information time-frequency resource;

其中，获取下行竞争共享频谱资源的配置信息，包括采用以下任意一种方式进行获取：The configuration information of the downlink competitive shared spectrum resource is obtained, and the method is obtained by using any one of the following methods:

c)从指定站点获取下行竞争共享频谱资源的配置信息；c) obtaining configuration information of the downlink contention shared spectrum resource from the designated station;

其中，所述下行竞争共享频谱资源在配置时避开小区的固定物理信道或者信号；The downlink contention shared spectrum resource avoids a fixed physical channel or signal of the cell when configured;

所述固定物理信道或者信号比如，物理广播信道(PBCH)，主/辅同步信号(PSS/SSS)；The fixed physical channel or signal, such as a physical broadcast channel (PBCH), a primary/secondary synchronization signal (PSS/SSS);

其中，所述下行竞争共享频谱资源的配置信息，包括以下信息的至少一种：竞争时频资源的时频范围、专用控制信息时频资源的时频范围、数据传输时频资源的时频范围、下行竞争共享频谱资源所在的子帧、竞争时频资源上的传输配置、竞争时频资源上传输竞争成功消息占用的频域范围、竞争时频资源上传输竞争成功消息占用的时域范围、退避计数器在频域上的退避顺序、退避计数器类型；The configuration information of the downlink contention shared spectrum resource includes at least one of the following information: a time-frequency range of the contention time-frequency resource, a time-frequency range of the time-frequency resource of the dedicated control information, and a time-frequency range of the time-frequency resource of the data transmission. The sub-frame in which the downlink competing shared spectrum resource is located, the transmission configuration on the contention time-frequency resource, the frequency domain range occupied by the contention competition success message on the contention time-frequency resource, and the time-domain range occupied by the transmission competition success message on the contention time-frequency resource, The backoff sequence of the backoff counter in the frequency domain and the backoff counter type;

其中，所述竞争时频资源上的传输配置，指站点在竞争时频资源上传输消息采用的传输方式，包括如下至少一项：调制阶数、传输模式；The transmission configuration on the contention time-frequency resource refers to a transmission mode used by the station to transmit a message on the contention time-frequency resource, and includes at least one of the following: a modulation order and a transmission mode;

其中，所述退避计数器在频域上的退避顺序，包括：按频率由高到低进行退避，或者按频率由低到高进行退避；The backoff sequence of the backoff counter in the frequency domain includes: backoff according to frequency from high to low, or backoff according to frequency from low to high;

其中，所述退避计数器类型包括：按时间退避或按竞争资源块退避；The backoff counter type includes: backoff by time or backoff by a competitive resource block;

其中，所述竞争资源块根据时频域粒度进行划分，所述时频域粒度根据一个竞争成功消息占用的时域范围和频域范围进行划分；每个竞争资源块具有一个编号，所述编号规则为：按照先频域后时域，且在频域上根据退避计数器在频域上的退避顺序由小到大对竞争资源块进行编号；The contention resource block is divided according to a time-frequency domain granularity, and the time-frequency domain granularity root According to a time domain range and a frequency domain range occupied by a contention success message; each contention resource block has a number, and the numbering rule is: according to the frequency domain after the time domain, and in the frequency domain according to the backoff counter in the frequency The backoff sequence on the domain numbers the competing resource blocks from small to large;

其中，所述下行竞争共享频谱资源满足以下条件中的至少一个：The downlink contention shared spectrum resource satisfies at least one of the following conditions:

d)在一个竞争期内，在时域上竞争时频资源位于专用控制信息时频资源和数据传输时频资源之前；d) during a competition period, the time-frequency resources in the time domain are located in front of the dedicated control information time-frequency resources and the data transmission time-frequency resources;

其中，对于一个小区，一个竞争期占用一个或者多个子帧，在一个竞争期内包含一块专用控制信息时频资源，一对或者多对竞争时频资源和数据传输时频资源，且竞争时频资源和数据传输时频资源与相邻小区相同；Wherein, for one cell, one contention period occupies one or more subframes, and one piece of dedicated control information time-frequency resources, one or more pairs of competing time-frequency resources and data transmission time-frequency resources, and contention time-frequency resources are included in one competition period. Resource and data transmission time-frequency resources are the same as neighboring cells;

可选地，在一个竞争期内，当配置一对竞争时频资源和数据传输时频资源时，相邻小区的专用控制信息时频资源可以相同也可以正交；当配置多于一对竞争时频资源和数据传输时频资源时，相邻小区的专用控制信息时频资源正交；Optionally, during a contention period, when a pair of competing time-frequency resources and data transmission time-frequency resources are configured, the time-frequency resources of the dedicated control information of the neighboring cells may be the same or orthogonal; when more than one pair of competitions are configured When time-frequency resources and data transmission time-frequency resources, the time-frequency resources of the dedicated control information of the neighboring cells are orthogonal;

其中，在竞争时频资源上竞争发送下行数据的机会，包括：Among them, the opportunity to compete for sending downlink data on competing time-frequency resources includes:

在竞争时频资源上运行竞争算法，如果竞争成功，则能够在竞争时频资源对应的数据传输时频资源上调度下属竞争共享用户，如果竞争失败，则不能在竞争时频资源对应的数据传输时频资源上调度下属竞争共享用户；The competition algorithm is run on the competitive time-frequency resource. If the competition is successful, the subordinate competition sharing user can be scheduled on the data transmission time-frequency resource corresponding to the competition time-frequency resource. If the competition fails, the data transmission corresponding to the competition time-frequency resource cannot be performed. Scheduling subordinate competing shared users on time-frequency resources;

其中，所述在竞争时频资源上运行竞争算法，包括：The running the competition algorithm on the competitive time-frequency resource includes:

当退避计数器类型为按时间退避时，竞争时频资源的时间到达时，竞争规则如下：所述退避计数器开始执行退避，当退避计数器为零时，在竞争时频资源上发送竞争成功消息，并在竞争时频资源上持续监听一段时间T，如果在时间T内没有收到其它站点发送的竞争成功消息，则竞争成功，重置退避计数器作为下次竞争时退避计数器的初始值；如果在时间T内收到其它站点发送的竞争成功消息，则将退避计数器置为选定的随机数，继续按照竞争规则参与竞争；When the backoff counter type is time-backed, when the time of the competing time-frequency resource arrives, the competition rule is as follows: the back-off counter starts to perform back-off, and when the back-off counter is zero, the competition The contention success message is sent on the time-frequency resource, and the time-frequency resource is continuously monitored for a period of time T. If the contention success message sent by other stations is not received within the time T, the competition is successful, and the back-off counter is reset as the next time. The initial value of the backoff counter during the competition; if the contention success message sent by the other station is received within the time T, the backoff counter is set to the selected random number, and the competition is continued according to the competition rule;

在时间T内收到其它站点发送的竞争成功消息的情况下，说明存在多个站点竞争冲突，此时发生冲突的站点继续竞争，各自在某一相同范围内选取随机数，所述范围可以与竞争时频资源剩余时间Tremaining有关，例如，范围为[0，Tremaining]。If the contention competition success message sent by other stations is received within the time T, it indicates that there are multiple site contention conflicts, and the conflicting sites continue to compete, and each of the same range selects a random number, and the range may be The remaining time of the competitive time-frequency resource is related to Tremaining, for example, the range is [0, Tremaining].

当退避计数器类型为按时间退避时，如果在退避过程中收到其它站点发送的竞争成功消息，则冻结退避计数器，等待下一个竞争时频资源的时间到达，继续参与竞争；When the backoff counter type is backoff by time, if a contention success message sent by another station is received during the backoff process, the backoff counter is frozen, waiting for the time of the next competing time-frequency resource to arrive, and continuing to participate in the competition;

当退避计数器类型为按竞争资源块退避时，根据所述退避计数器的值确定发送竞争成功消息占用竞争资源块的编号，然后采取预定的竞争规则竞争数据传输时频资源；When the backoff counter type is backed by the contention resource block, determining, according to the value of the backoff counter, the number of the contention competition resource block that is used to generate the contention success message, and then adopting a predetermined contention rule to compete for data transmission time-frequency resources;

其中，所述采取预定的竞争规则竞争数据传输时频资源，包括：The taking the predetermined competition rule to compete for data transmission time-frequency resources, including:

c)如果发送竞争成功消息后在一段时间T内收到其它站点发送的竞争成功消息，则将自己发送竞争成功消息占用的竞争资源块的编号与其它站点发送竞争成功消息占用的竞争资源块的编号比较大小，根据比较结果进行处理；c) If a contention success message sent by another station is received within a period of time T after the contention success message is sent, the number of the contention resource block occupied by the contention success message is sent to itself. The number of the competition resource blocks occupied by the station sending the contention success message is compared, and is processed according to the comparison result;

其中，所述根据比较结果进行处理，包括：The processing according to the comparison result includes:

c)当发送竞争成功消息占用的竞争资源块编号最小，且与至少一个其它通信站点发送竞争成功消息占用的竞争资源块编号相等时，重置退避计数器，且退避计数器的值位于竞争时频资源的剩余时间内竞争资源块的最小和最大编号之间，继续参与竞争；c) resetting the backoff counter when the contention of the contention block used by the contention success message is the smallest, and the value of the backoff counter is located in the competitive time-frequency resource when the contention of the contention of the contention is equal to that of the at least one other communication station. Between the minimum and maximum number of competing resource blocks in the remaining time, continue to participate in the competition;

其中，所述竞争成功消息包括：竞争成功的小区标识；The contention success message includes: a cell identity that is successfully competitive;

可选地，没有参与竞争的站点可以在满足一定功率限制的条件下使用下行竞争共享频谱资源的数据传输时频资源传输数据；Optionally, the station that does not participate in the competition may use the data transmission time-frequency resource of the downlink contention shared spectrum resource to transmit data under the condition that a certain power limitation is met;

可选地，在一个竞争期内，当竞争时频资源和数据传输时频资源分别位于前后两个不同的子帧上，且所述数据传输时频资源是后一子帧中物理下行共享信道PDSCH所在时频资源的一部分时，竞争失败的站点可以在满足一定功率限制的条件下使用所述数据传输时频资源传输数据；Optionally, during a contention period, when the contention time resource and the data transmission time-frequency resource are respectively located in two different subframes, and the data transmission time-frequency resource is a physical downlink shared channel in the subsequent subframe. When a part of the time-frequency resource of the PDSCH is located, the station that fails the competition may use the data transmission time-frequency resource to transmit data under a condition that a certain power limit is met;

如图2所示，本发明实施例提供了一种下行资源共享方法，应用于用户设备，包括：As shown in FIG. 2, the embodiment of the present invention provides a downlink resource sharing method, which is applied to user equipment, and includes:

S201，接收站点发送的下行竞争共享频谱资源配置消息，所述消息中携带下行竞争共享频谱资源配置信息； S201. The downlink contention shared spectrum resource configuration message sent by the receiving station, where the message carries the downlink contention shared spectrum resource configuration information.

S202，根据所述配置信息在专用控制信息时频资源上检测到控制信息后，根据所述控制信息在数据传输时频资源上接收下行数据；S202, after detecting the control information on the dedicated control information time-frequency resource according to the configuration information, receiving downlink data on the data transmission time-frequency resource according to the control information;

其中，所述方法还包括：The method further includes:

根据所述配置信息在专用控制信息时频资源上未检测到控制信息，则等待下一个专用控制信息时频资源的时间到达后，继续在所述下一个专用控制信息时频资源上检测控制信息；If the control information is not detected on the dedicated control information time-frequency resource according to the configuration information, wait for the time of the next dedicated control information time-frequency resource to arrive, and continue to detect the control information on the next dedicated control information time-frequency resource. ;

其中，所述竞争资源块根据时频域粒度进行划分，所述时频域粒度根据一个竞争成功消息占用的时域范围和频域范围进行划分；每个竞争资源块具有一个编号，所述编号规则为：按照先频域后时域，且在频域上根据退避计数器在频域上的退避顺序由小到大对竞争资源块进行编号；The contention resource block is divided according to a time-frequency domain granularity, and the time-frequency domain granularity is divided according to a time domain range and a frequency domain range occupied by a contention success message; each contention resource block has a number, and the number is The rule is: according to the pre-frequency domain post-time domain, and in the frequency domain, the contention blocks are numbered from small to large according to the backoff sequence of the backoff counter in the frequency domain;

可选的，根据所述配置信息在专用控制信息时频资源上检测控制信息之前，所述方法还包括：Optionally, before detecting the control information on the dedicated control information time-frequency resource according to the configuration information, the method further includes:

在竞争时频资源上监听竞争成功消息，如监听到服务小区的竞争成功消息，则在服务小区的专用控制信息时频资源上检测控制信息；Listening to the competition success message on the competitive time-frequency resource, such as monitoring the successful competition of the serving cell The message detects the control information on the time-frequency resource of the dedicated control information of the serving cell;

其中，所述竞争成功消息是竞争共享用户的服务小区的站点或相邻小区的站点发送的，其中携带小区标识；竞争共享用户可以根据竞争成功消息中的小区标识判断服务小区是否竞争成功，以便竞争共享用户进一步判断是否需要在服务小区的专用控制信息时频资源上检测控制信息；The contention success message is sent by the station of the serving cell of the shared user or the station of the neighboring cell, where the cell identity is carried. The contention cell can determine whether the cell is successful according to the cell identity in the contention success message. The contention sharing user further determines whether it is necessary to detect the control information on the time-frequency resource of the dedicated control information of the serving cell;

其中，所述方法还包括：The method further includes:

根据所述配置信息对数据传输时频资源所在的频段进行信道质量测量，将测量结果上报给服务站点；其中，所述测量结果用于所述服务站点为所述竞争共享用户分配时频资源，确定下行数据的调制编码方式。Performing channel quality measurement on the frequency band in which the data transmission time-frequency resource is located according to the configuration information, and reporting the measurement result to the service site; wherein the measurement result is used by the service station to allocate time-frequency resources to the contention sharing user. Determine the modulation and coding scheme of the downlink data.

如图3所示，本发明实施例提供了一种下行资源共享装置，应用于站点，包括：As shown in FIG. 3, an embodiment of the present invention provides a downlink resource sharing apparatus, which is applied to a site, and includes:

其中，所述下行竞争共享频谱资源的配置信息，包括以下信息的至少一种：The configuration information of the downlink contention shared spectrum resource includes at least one of the following information:

竞争时频资源的时频范围、专用控制信息时频资源的时频范围、数据传输时频资源的时频范围、下行竞争共享频谱资源所在的子帧、竞争时频资源上的传输配置、竞争时频资源上传输竞争成功消息占用的频域范围、竞争时频资源上传输竞争成功消息占用的时域范围、退避计数器在频域上的退避顺序、退避计数器类型。 Time-frequency range of competing time-frequency resources, time-frequency range of time-frequency resources of dedicated control information, time-frequency range of time-frequency resources of data transmission, subframes in which downlink shared spectrum resources are located, transmission configuration on competitive time-frequency resources, and competition The frequency domain range occupied by the communication success message on the time-frequency resource, the time domain range occupied by the transmission competition success message on the contention time-frequency resource, the back-off sequence of the back-off counter in the frequency domain, and the back-off counter type.

其中，所述下行竞争共享频谱资源满足以下a)-d)条件中的至少一个：The downlink contention shared spectrum resource satisfies at least one of the following a)-d) conditions:

其中，配置模块，设置为获取下行竞争共享频谱资源的配置信息，包括采用以下任意一种方式进行获取：The configuration module is configured to obtain configuration information of the downlink contention shared spectrum resource, including obtaining the following one of the following methods:

其中，所述装置还包括第一通知模块：The device further includes a first notification module:

其中，所述下行竞争共享频谱资源配置消息中携带下行竞争共享频谱资源配置信息；The downlink contention shared spectrum resource configuration message carries the downlink contention shared spectrum resource configuration information;

其中，所述装置还包括第二通知模块：The device further includes a second notification module:

其中，竞争模块，设置为在竞争时频资源上竞争发送下行数据的机会，包括：The competition module is set to compete for the opportunity to send downlink data on the competitive time-frequency resources, including:

在竞争时频资源上运行竞争算法，如果竞争成功，则能够在竞争时频资源对应的数据传输时频资源上调度下属竞争共享用户，如果竞争失败，则不能在竞争时频资源对应的数据传输时频资源上调度下属竞争共享用户。Run a competition algorithm on competitive time-frequency resources. If the competition is successful, it can compete in time-frequency. The data sharing time-frequency resource corresponding to the resource schedules the subordinate competing shared user. If the contention fails, the subordinate competing shared user cannot be scheduled on the data transmission time-frequency resource corresponding to the competing time-frequency resource.

其中，竞争模块，设置为在竞争时频资源上运行竞争算法，包括：The competition module is configured to run a competition algorithm on the competitive time-frequency resource, including:

当退避计数器类型为按时间退避时，竞争时频资源的时间到达时，竞争规则如下：所述退避计数器开始执行退避，当退避计数器为零时，在竞争时频资源上发送竞争成功消息，并在竞争时频资源上持续监听一段时间T，如果在时间T内没有收到其它站点发送的竞争成功消息，则竞争成功，重置退避计数器作为下次竞争时退避计数器的初始值；如果在时间T内收到其它站点发送的竞争成功消息，则将退避计数器置为选定的随机数，继续按照竞争规则参与竞争。When the backoff counter type is time-backed, when the time of the competing time-frequency resource arrives, the contention rule is as follows: the back-off counter starts performing back-off, and when the back-off counter is zero, the contention success message is sent on the contention time-frequency resource, and If the competition success message sent by other stations is not received within the time T, the competition is successful, and the backoff counter is reset as the initial value of the backoff counter at the next competition; if at the time After receiving the contention success message sent by other stations in T, the backoff counter is set to the selected random number, and the competition is continued according to the competition rules.

当退避计数器类型为按时间退避时，如果在退避过程中收到其它站点发送的竞争成功消息，则冻结退避计数器，等待下一个竞争时频资源的时间到达，继续参与竞争。When the backoff counter type is backoff by time, if a contention success message sent by another station is received during the backoff process, the backoff counter is frozen, waiting for the time of the next competing time-frequency resource to arrive, and continuing to participate in the competition.

其中，竞争模块，设置为采取预定的竞争规则竞争数据传输时频资源，包括：The contention module is configured to compete for data transmission time-frequency resources by adopting a predetermined competition rule, including:

b)如果发送竞争成功消息后在一段时间T内没有收到其它站点发送的竞争成功消息，则竞争成功，重置退避计数器作为下次竞争时退避计数器的初始值；b) If the contention success message sent by other stations is not received within a certain period of time after the contention success message is sent, the competition is successful, and the backoff counter is reset as the backoff count for the next competition. Initial value of the device;

其中，竞争模块，设置为根据比较结果进行处理，包括：The competition module is set to be processed according to the comparison result, including:

其中，在一个竞争期内，当配置一对竞争时频资源和数据传输时频资源时，相邻小区的专用控制信息时频资源相同或正交；当配置多于一对竞争时频资源和数据传输时频资源时，相邻小区的专用控制信息时频资源正交。Wherein, during a competition period, when a pair of competing time-frequency resources and data transmission time-frequency resources are configured, the time-frequency resources of the dedicated control information of the neighboring cells are the same or orthogonal; when more than one pair of competing time-frequency resources are configured When data is transmitted with time-frequency resources, the time-frequency resources of the dedicated control information of the neighboring cells are orthogonal.

如图4所述，本发明实施例提供了一种下行资源共享装置，应用于用户设备，包括：As shown in FIG. 4, an embodiment of the present invention provides a downlink resource sharing device, which is applied to a user equipment, and includes:

配置信息获取模块，设置为接收站点发送的下行竞争共享频谱资源配置消息，所述消息中携带下行竞争共享频谱资源配置信息； The configuration information obtaining module is configured to receive a downlink contention shared spectrum resource configuration message sent by the station, where the message carries the downlink contention shared spectrum resource configuration information;

数据接收模块，设置为在专用控制信息时频资源上检测到控制信息后，根据所述控制信息在数据传输时频资源上接收下行数据；The data receiving module is configured to: after detecting the control information on the time-frequency resource of the dedicated control information, receive the downlink data on the data transmission time-frequency resource according to the control information;

其中，控制信息检测模块，设置为在专用控制信息时频资源上未检测到控制信息，则等待下一个专用控制信息时频资源的时间到达后，继续在所述下一个专用控制信息时频资源上检测控制信息。The control information detecting module is configured to not detect the control information on the time-frequency resource of the dedicated control information, and wait for the time of the next dedicated control information time-frequency resource to arrive, and continue the time-frequency resource in the next dedicated control information. The control information is detected.

其中，所述装置还包括：Wherein, the device further comprises:

其中，所述测量结果用于所述服务站点为所述竞争共享用户分配时频资源，确定下行数据的调制编码方式。 The measurement result is used by the service station to allocate time-frequency resources to the contention sharing user, and determine a modulation and coding manner of downlink data.

具体示例Specific example

如图5所示，小区之间的下行干扰场景中，以3个相邻小区为例，实际中也可以不限于3个，本发明中的通信站点以eNB(演进的节点B)为例，三个相邻小区的基站分别为eNB1，eNB2和eNB3，其中用户UE1的服务基站为eNB1，用户UE2的服务基站为eNB2，当UE1和UE2位于eNB1和eNB2的覆盖交叠区域时，UE1和UE2会受到相邻小区的下行干扰。As shown in FIG. 5, in the downlink interference scenario between cells, three neighboring cells are taken as an example, and the actual communication station may not be limited to three. The communication station in the present invention takes an eNB (evolved node B) as an example. The base stations of the three adjacent cells are eNB1, eNB2 and eNB3, respectively, wherein the serving base station of the user UE1 is eNB1, the serving base station of the user UE2 is eNB2, and when UE1 and UE2 are located in the coverage overlapping area of eNB1 and eNB2, UE1 and UE2 Will be subject to downlink interference from neighboring cells.

以下示例中，竞争共享用户以边缘用户为例，本发明中竞争共享用户是按照某种规则确定的用户组/集合，例如根据用户下行受干扰情况将接收到的干扰功率超过预定门限的用户作为竞争共享用户，或者根据用户下行接收信号质量情况将接收信号质量低于预定门限的用户作为竞争共享用户，另外竞争共享用户也可以是通信站点下的所有用户；通信系统以频分双工FDD系统为例，也适合时分双工TDD系统，只不过仅仅在下行子帧上配置下行竞争共享频谱资源；相邻小区以3个小区为例，当相邻小区数量不为3时，专用控制信息时频资源的配置只要满足如下条件即可：在一个竞争期内，当配置一对竞争时频资源和数据传输时频资源时，相邻小区的专用控制信息时频资源可以相同也可以正交；当配置多于一对竞争时频资源和数据传输时频资源时，相邻小区的专用控制信息时频资源正交。In the following example, the contention user is an edge user. In the present invention, the contention user is a user group/set determined according to a certain rule. For example, the user who receives the interference power exceeds a predetermined threshold according to the downlink interference of the user is used as the user. Competing and sharing users, or users with received signal quality lower than a predetermined threshold as competing shared users according to the downlink receiving signal quality of the user, and the competing shared users may also be all users under the communication station; the communication system adopts frequency division duplex FDD system For example, it is also suitable for a time division duplex TDD system, except that only the downlink contention shared spectrum resource is configured on the downlink subframe; the neighboring cell takes three cells as an example, and when the number of neighboring cells is not 3, the dedicated control information is used. The configuration of the frequency resource may be as follows: when a pair of competing time-frequency resources and data transmission time-frequency resources are configured in a competition period, the time-frequency resources of the dedicated control information of the neighboring cells may be the same or orthogonal; When more than one pair of competing time-frequency resources and data transmission time-frequency resources are configured, the neighboring cells are dedicated When the system information is orthogonal frequency resources.

示例一Example one

本示例中一个竞争期内包含一对竞争时频资源和数据传输时频资源，下行竞争共享频谱配置消息中不包含竞争时频资源的时频范围，边缘用户仅检测专用控制信息时频资源上的控制信息确定在数据传输时频资源上如何接收以及是否需要接收下行数据。在本示例中对一个小区而言，一个竞争期占用一个子帧，在一个竞争期内包含一块专用控制信息时频资源，一对竞争时频资源和数据传输时频资源，且竞争时频资源和数据传输时频资源与相邻小区相同。另外在本示例中eNB竞争数据传输时频资源时没有发生竞争冲突。In this example, a competition period includes a pair of competing time-frequency resources and data transmission time-frequency resources. The downlink contention shared spectrum configuration message does not include the time-frequency range of the contention time-frequency resources, and the edge users only detect the dedicated control information on the time-frequency resources. The control information determines how to receive on the data transmission time-frequency resource and whether to receive the downlink data. In this example, for one cell, one contention period occupies one subframe, and one piece of dedicated control information time-frequency resources, one pair of competing time-frequency resources and data transmission time-frequency resources, and competing time-frequency resources are included in one contention period. And data transmission time frequency The resources are the same as the neighboring cells. In addition, in this example, the eNB competes for data transmission time-frequency resources without a contention conflict.

本示例中在每个无线帧的子帧1，3，6，8上配置下行竞争共享频谱，一个子帧上的配置如图6所示，其中横轴表示时间，纵轴表示频率，三个相邻小区1，2，3(对应的基站如图5所示分别为eNB1，eNB2和eNB3)同频，系统带宽为10MHz，三个相邻小区配置的专用控制信息时频资源正交，分别对应图6中的专用控制信息时频资源1，2和3，即时域上都是子帧的第9到10个正交频分复用(OFDM,Orthogonal Frequency Division Multiplexing)符号，频域上分别为第11到20个资源块(RB,Resource Block)，第21到30个RB，第31到40个RB。三个相邻小区配置的竞争时频资源和数据传输时频资源相同，其中，竞争时频资源在时域上是子帧的第4到8个OFDM符号，频域上是第25个RB，数据传输时频资源在时域上是子帧的第11到14个OFDM符号，频域上为第11到40个RB。In this example, the downlink contention shared spectrum is configured on subframes 1, 3, 6, and 8 of each radio frame, and the configuration on one subframe is as shown in FIG. 6, wherein the horizontal axis represents time and the vertical axis represents frequency, three The neighboring cells 1, 2, and 3 (the corresponding base stations are eNB1, eNB2, and eNB3 respectively) are co-frequency, the system bandwidth is 10 MHz, and the dedicated control information of the three adjacent cells is orthogonal to the time-frequency resources. Corresponding to the dedicated control information time-frequency resources 1, 2 and 3 in FIG. 6, the ninth to tenth orthogonal frequency division multiplexing (OFDM) symbols of the subframe are in the real-time domain, respectively, in the frequency domain It is the 11th to 20th resource block (RB, Resource Block), the 21st to 30th RB, and the 31st to 40th RB. The contention time-frequency resources of the three adjacent cells are the same as the data transmission time-frequency resources, wherein the contention time-frequency resources are the 4th to 8th OFDM symbols of the subframe in the time domain, and the 25th RB in the frequency domain. The data transmission time-frequency resource is the 11th to 14th OFDM symbols of the subframe in the time domain and the 11th to 40th RBs in the frequency domain.

上述下行竞争共享频谱的配置由eNB的上层管理节点(例如移动性管理实体MME，或者网管OAM)统一决策确定，然后将相应小区的下行竞争共享频谱的配置发送给对应的eNB。The configuration of the downlink competing shared spectrum is determined by the upper management node of the eNB (for example, the mobility management entity MME or the network management OAM), and then the configuration of the downlink contention shared spectrum of the corresponding cell is sent to the corresponding eNB.

每个eNB生成下行竞争共享频谱配置消息，并将该消息发送给下属边缘用户，该消息包含了在一个子帧内的本小区的专用控制信息时频资源、数据传输时频资源的时频范围，下行竞争共享频谱资源所在的子帧(这里设置为子帧1，3，6，8)，例如eNB1向下属边缘用户发送的下行竞争共享频谱配置消息的具体内容为：专用控制信息时频资源的时频范围是时域上的第9到10个OFDM符号，频域上的第11到20个RB；数据传输时频资源的时频范围是时域上第11到14个OFDM符号，频域上的第11到40个RB；下行竞争共享频谱资源所在的子帧为1，3，6，8。eNB1，eNB2，eNB3发送的下行竞争共享频谱配置消息的主要区别是专用控制信息时频资源的时频范围不同，eNB2和eNB3发送的下行竞争共享频谱配置消息中专用控制信息时频资源的时频范围分别如图6中的标号为2和3的专用控制信息时频资源的时频范围。另外，下行竞争共享频谱配置消息中数据传输时频资源的时频范围主要用于所述边缘用户对“数据传输时频资源”所在的频段进行信道质量测量。之后边缘用户将测量结果上报给其服务eNB，以便其服务eNB根据测量结果为所述边缘用户分配时频资源，确定采用的调制编码方式。Each eNB generates a downlink contention shared spectrum configuration message, and sends the message to a subordinate edge user, where the message includes the dedicated control information of the current cell in a subframe, and the time-frequency range of the time-frequency resource and the data transmission time-frequency resource. The subframe in which the downlink contention shared spectrum resource is located (set here as subframe 1, 3, 6, 8), for example, the specific content of the downlink contention shared spectrum configuration message sent by the eNB1 to the subordinate edge user is: dedicated control information time-frequency resource The time-frequency range is the 9th to 10th OFDM symbols in the time domain, and the 11th to 20th RBs in the frequency domain; the time-frequency range of the data transmission time-frequency resource is the 11th to 14th OFDM symbols in the time domain, and the frequency The 11th to 40th RBs on the domain; the subframes in which the downlink contention shared spectrum resources are located are 1, 3, 6, and 8. The main difference of the downlink contention shared spectrum configuration message sent by the eNB1, the eNB2, and the eNB3 is that the time-frequency range of the time-frequency resource of the dedicated control information is different, and the time-frequency of the dedicated control information time-frequency resource in the downlink contention shared spectrum configuration message sent by the eNB2 and the eNB3 The range is the time-frequency range of the time-frequency resource of the dedicated control information labeled 2 and 3, respectively. In addition, the data in the downlink contention shared spectrum configuration message The time-frequency range of the transmission time-frequency resource is mainly used for the channel user to perform channel quality measurement on the frequency band in which the “data transmission time-frequency resource” is located. The edge user then reports the measurement result to its serving eNB, so that its serving eNB allocates time-frequency resources to the edge user according to the measurement result, and determines the modulation coding mode used.

其中，eNB向边缘用户发送下行竞争共享频谱配置消息的方式有多种，可以采用广播、组播或者单播的方式，采用广播方式发送与采用组播或者单播方式相比在步骤上稍有区别。因为组播或者单播方式发送都是仅仅将配置消息发送给边缘用户，边缘用户成功接收该配置消息后，自然就知道自己是边缘用户。但是，当采用广播方式发送时，所有用户都能接收到该配置消息，因此采用广播方式发送时还需要eNB额外向边缘用户发送边缘用户指示消息(例如该指示信息大小为1bit，其值为1时表示该用户被确定为边缘用户，为0时表示该用户由边缘用户变为非边缘用户)，告诉用户其已经被确定为边缘用户。The eNB sends the downlink contention shared spectrum configuration message to the edge user in multiple manners. It can be broadcast, multicast, or unicast. The broadcast mode is slightly different from the multicast or unicast mode. the difference. Because the multicast or unicast mode sends only the configuration message to the edge user. After the edge user successfully receives the configuration message, it naturally knows that it is an edge user. However, when the broadcast mode is used, all users can receive the configuration message. Therefore, when the broadcast mode is used, the eNB needs to send an edge user indication message to the edge user. For example, the size of the indication information is 1 bit, and the value is 1 The time indicates that the user is determined to be an edge user, and when 0, the user is changed from an edge user to a non-edge user, telling the user that it has been determined as an edge user.

其中，边缘用户确定方法为：eNB根据终端用户与其之间的距离和或终端用户上报的测量结果，判断终端用户是否满足预先设定的判断标准，满足所述判断标准的终端用户被确定为边缘用户。The method for determining the edge user is: the eNB determines, according to the distance between the terminal user and the measurement result reported by the terminal user, whether the terminal user meets a preset determination criterion, and the terminal user that meets the determination criterion is determined as an edge. user.

eNB运行竞争算法，获取数据传输时频资源上的发送机会，具体地为：eNB设置退避计数器，当竞争时频资源的时间到达时，按照一定规则开始执行退避，该规则是预先确定好的，例如以一个OFDM符号，或者K个OFDM符号(其中K为正整数)为单位检测竞争时频资源是否空闲，如果空闲则退避计数器减1，当退避计数器减为0时，则eNB在竞争时频资源上发送竞争成功消息，并在竞争时频资源上持续监听一段时间T，其中T可以根据相邻eNB之间的距离预先定义，如果在T时间内eNB没有收到其它eNBs发送的竞争成功消息，则eNB竞争成功，否则eNB重新初始化退避计数器，继续参与竞争。The eNB runs a contention algorithm to obtain a transmission opportunity on the data transmission time-frequency resource. Specifically, the eNB sets a backoff counter. When the time of the contention time-frequency resource arrives, the back-off is started according to a certain rule, and the rule is predetermined. For example, detecting whether the contention time-frequency resource is idle in units of one OFDM symbol or K OFDM symbols (where K is a positive integer), if the idle counter is decremented by 1 when the idle counter is reduced to 0, the eNB is competing in the time-frequency. A contention success message is sent on the resource, and the time-frequency resource is continuously monitored for a period of time T, where T can be predefined according to the distance between neighboring eNBs. If the eNB does not receive the contention success message sent by other eNBs in the T time. Then, the eNB competes successfully, otherwise the eNB re-initializes the backoff counter and continues to participate in the competition.

如果在eNB在发送竞争成功消息之前收到了其它eNB发送的竞争成功消息，则该eNB冻结退避计数器，等待下一个竞争时频资源的时间到达，继续参与竞争。If the eNB receives a contention success message sent by another eNB before transmitting the contention success message, the eNB freezes the backoff counter and waits for the next time to compete for the time-frequency resource. To continue to participate in the competition.

在本示例中假设没有发生竞争冲突，假设eNB1退避计数器先减为0，则eNB1在竞争时频资源上发送竞争成功消息，并在竞争时频资源上持续监听2微秒，没有收到其它eNBs发送的竞争成功消息，则eNB1竞争成功，因此eNB1在数据传输时频资源上调度下属边缘用户，向下属边缘用户发送下行数据，并在本小区的专用控制信息时频资源上发送对应的控制信息，以辅助边缘用户接收并解调下行数据。In this example, it is assumed that no contention conflict occurs. If the eNB1 backoff counter is first reduced to 0, eNB1 sends a contention success message on the contention time-frequency resource, and continuously listens for 2 microseconds on the contention time-frequency resource, and does not receive other eNBs. After the contention success message is sent, the eNB1 competes successfully. Therefore, the eNB1 schedules the subordinate users on the data transmission time-frequency resources, and sends the downlink data to the subordinate edge users, and sends the corresponding control information on the dedicated control information time-frequency resources of the local cell. To assist the edge user to receive and demodulate the downlink data.

各eNB的边缘用户在服务小区的专用控制信息时频资源上检测控制信息，并根据控制信息接收服务eNB发送的下行数据，具体方法是现有技术，这里不再赘述。The edge user of each eNB detects the control information on the dedicated control information time-frequency resource of the serving cell, and receives the downlink data sent by the serving eNB according to the control information. The specific method is the prior art, and details are not described herein again.

值得说明的是，在上述示例中，当下行竞争共享频谱配置消息中不包含数据传输时频资源的时频范围信息时，eNB可以根据边缘用户的数量、数据需求等为边缘用户分配时频资源，并采用默认的调制编码方式；或者当下行竞争共享频谱配置消息中不包含数据传输时频资源的时频范围信息时，边缘用户测量整个系统带宽上的信道质量，然后将测量结果上报给其服务eNB，其服务eNB根据数据传输时频资源对应频段的测量结果为边缘用户分配时频资源，确定采用的调制编码方式。为边缘用户分配时频资源并确定采用的调制编码方式的具体方法取决于eNB的实现，并不限于这两种。It should be noted that, in the foregoing example, when the downlink contention spectrum configuration message does not include the time-frequency range information of the data transmission time-frequency resource, the eNB may allocate the time-frequency resource to the edge user according to the number of edge users, data requirements, and the like. And adopting the default modulation and coding mode; or when the downlink contention shared spectrum configuration message does not include the time-frequency range information of the data transmission time-frequency resource, the edge user measures the channel quality on the entire system bandwidth, and then reports the measurement result to the same The serving eNB, the serving eNB allocates time-frequency resources to the edge users according to the measurement result of the corresponding frequency band of the data transmission time-frequency resource, and determines the modulation coding mode used. The specific method of allocating time-frequency resources to edge users and determining the modulation coding mode used depends on the implementation of the eNB, and is not limited to these two.

示例二Example two

本示例中一个子帧中下行竞争共享频谱的配置与示例一相同，如图6所示。本示例与示例一的差别在于：eNB竞争数据传输时频资源时发生了竞争冲突，因此需要解决竞争冲突，本示例重点描述竞争冲突解决方法。The configuration of the downlink contention shared spectrum in one subframe in this example is the same as that in the first example, as shown in FIG. 6. The difference between this example and the first example is that when the eNB competes for data transmission time-frequency resources, a contention conflict occurs, so it is necessary to resolve the contention conflict. This example focuses on the method of competing conflict resolution.

本示例中假设eNB1和eNB2竞争冲突了，eNB1和eNB2在竞争时频资源的第2个OFDM符号上发送竞争成功消息，其它eNBs在第2个OFDM符号上检测到eNB1和eNB2发送的竞争成功消息，因此其它eNBs冻结其退避计数器，等待下一个竞争时频资源的时间到达继续竞争。而eNB1和eNB2在竞争时频资源上继续检测时间T(例如T为2微秒，远小于一个OFDM符号的时间)后，收到对方发送的竞争成功消息，这时eNB1和eNB2需要重置退避计数器，由于竞争时频资源还剩余3个OFDM符号的时间，为保证本次竞争至少有一个eNB竞争成功，因此eNB1和eNB2的退避计数器的值必须小于3，也就是说在0，1，2之间随机选取一个值作为退避计数器的值，假设重置后eNB1的退避计数器为0，eNB2的退避计数器为1，因此eNB1在竞争时频资源的第3个OFDM符号上发送竞争成功消息，在竞争时频资源上继续检测时间2微秒后，没有收到eNB2发送的竞争成功消息，而eNB2在第3个OFDM符号上检测到eNB1的竞争成功消息，因此冻结其退避计数器，等待下一个竞争时频资源的时间到达继续竞争。因此竞争冲突解决，eNB1成功地竞争到数据传输时频资源。In this example, it is assumed that eNB1 and eNB2 compete for collision, and eNB1 and eNB2 transmit a contention success message on the second OFDM symbol of the contention time-frequency resource, and other eNBs detect the contention success message sent by eNB1 and eNB2 on the second OFDM symbol. , so other eNBs freeze Its backoff counter waits for the next time to compete for time-frequency resources to continue to compete. On the other hand, eNB1 and eNB2 continue to detect the time T (for example, T is 2 microseconds, which is much smaller than the time of one OFDM symbol), and then receive the contention success message sent by the other party. At this time, eNB1 and eNB2 need to reset the backoff. The value of the backoff counter of eNB1 and eNB2 must be less than 3, that is, at 0, 1, 2, because there is still 3 OFDM symbols remaining in the time-frequency resource. A value is randomly selected as the value of the backoff counter. It is assumed that the backoff counter of eNB1 is 0 after reset, and the backoff counter of eNB2 is 1, so eNB1 sends a contention success message on the third OFDM symbol of the contention time-frequency resource. After 2 ms of continuous detection time on the competitive time-frequency resource, the contention success message sent by eNB2 is not received, and eNB2 detects the contention success message of eNB1 on the 3rd OFDM symbol, thus freezing its backoff counter and waiting for the next competition. Time-frequency resources arrive at the time to continue to compete. Therefore, the contention conflict is resolved, and eNB1 successfully competes for data transmission time-frequency resources.

由于eNB2是在竞争冲突解决中再次竞争时竞争失败，因此在后续竞争中eNB2应该有更高的优先级竞争到数据传输时频资源，因此，可以采取一些方法保证eNB2优先竞争到数据传输时频资源，例如，eNB2可以在下一个竞争时频资源的第一个OFDM符号上发送竞争成功消息，从而保证eNB2优先竞争到下一个数据传输时频资源。Since eNB2 fails to compete in the competition for conflict resolution, eNB2 should have higher priority to compete for data transmission time-frequency resources in subsequent competition. Therefore, some methods can be adopted to ensure that eNB2 preferentially competes for data transmission time-frequency. The resource, for example, eNB2 may send a contention success message on the first OFDM symbol of the next contention time-frequency resource, thereby ensuring that eNB2 preferentially contends to the next data transmission time-frequency resource.

示例三Example three

本示例中一个子帧中下行竞争共享频谱的配置与示例一相同，如图6所示。本示例与示例一的差别在于：边缘用户在竞争时频资源上通过监听竞争成功消息决定是否在服务小区的专用控制信息时频资源上检测控制信息。The configuration of the downlink contention shared spectrum in one subframe in this example is the same as that in the first example, as shown in FIG. 6. The difference between this example and the first example is that the edge user determines whether to detect the control information on the dedicated control information time-frequency resource of the serving cell by monitoring the contention success message on the contention time-frequency resource.

因此与示例一的区别主要体现在以下几点：Therefore, the difference with the example one is mainly reflected in the following points:

1)下行竞争共享频谱配置消息与示例一不同，本示例中下行竞争共享频谱配置消息包括：本小区的专用控制信息时频资源、竞争时频资源和数据传输时频资源在一个子帧内的时频域范围，下行竞争共享频谱资源所在的子帧(这里设置为子帧1，3，6，8)，竞争时频资源上的传输配置(调制阶数，传输模式)，竞争时频资源上传输竞争成功消息占用的频域范围为一个RB，竞争时频资源上传输竞争成功消息占用的时域范围为一个OFDM符号，退避计数器类型为按时间退避。1) The downlink contention shared spectrum configuration message is different from that in the first example. In this example, the downlink contention shared spectrum configuration message includes: dedicated control information of the current cell, time-frequency resources, and time-frequency resources of the data transmission in one subframe. Time-frequency domain range, downlink competitive shared spectrum resource In the subframe (set to subframe 1, 3, 6, 8), the transmission configuration (modulation order, transmission mode) on the time-frequency resource, the frequency domain range occupied by the competition success message on the competitive time-frequency resource For an RB, the time domain range occupied by the transmission succession message on the contention time-frequency resource is one OFDM symbol, and the backoff counter type is time-backed.

2)边缘用户接收下行数据的方式不同。在本示例中，边缘用户接收服务eNB发送的下行竞争共享频谱资源配置消息，并根据下行竞争共享频谱资源配置消息，在竞争时频资源上监听竞争成功消息，边缘用户在一个OFDM符号上收到的竞争成功消息有四种情况：2) The way the edge users receive downlink data is different. In this example, the edge user receives the downlink contention shared spectrum resource configuration message sent by the serving eNB, and monitors the contention success message on the contention time-frequency resource according to the downlink contention shared spectrum resource configuration message, and the edge user receives the OFDM symbol on one OFDM symbol. There are four situations in which the competition success message is:

a)收到服务小区eNB发送的一个竞争成功消息，则边缘用户接下来会在服务小区的专用控制信息时频资源上检测控制信息，并根据控制信息接收服务eNB发送的下行数据，具体方法是现有技术，这里不再赘述；a) receiving a contention success message sent by the serving cell eNB, the edge user next detecting the control information on the dedicated control information time-frequency resource of the serving cell, and receiving the downlink data sent by the serving eNB according to the control information, the specific method is The prior art is not described here;

b)收到其它小区eNB发送的一个竞争成功消息，则边缘用户等待下一个竞争时频资源的时间到达，继续在竞争时频资源上监听竞争成功消息；b) receiving a contention success message sent by the other cell eNB, the edge user waits for the time of the next contention time-frequency resource to arrive, and continues to listen to the contention success message on the contention time-frequency resource;

c)没有收到任何竞争成功消息，则边缘用户等待下一个竞争时频资源的时间到达，继续在竞争时频资源上监听竞争成功消息；c) if no competition success message is received, the edge user waits for the time of the next competing time-frequency resource to arrive, and continues to listen to the competition success message on the competitive time-frequency resource;

d)收到多个竞争成功消息，这时说明存在竞争冲突了，如果这些竞争成功消息都不是服务小区发送的，则边缘用户等待下一个竞争时频资源的时间到达，继续监听竞争成功消息；如果有一个竞争成功消息是服务小区发送的，则边缘用户继续在本次竞争时频资源或者下一个竞争时频资源上继续监听竞争成功消息。d) receiving a plurality of contention success messages, indicating that there is a contention conflict. If the contention success messages are not sent by the serving cell, the edge user waits for the time of the next contention time resource to arrive, and continues to monitor the contention success message; If there is a contention success message sent by the serving cell, the edge user continues to listen to the contention success message on the current time-frequency resource or the next contention time-frequency resource.

示例四Example four

本示例中一个竞争期内包含两对竞争时频资源和数据传输时频资源(实际中不限于两对)，下行竞争共享频谱配置消息中不包含竞争时频资源的时频范围，边缘用户仅检测专用控制信息时频资源上的控制信息确定在数据传输时频资源上如何接收以及是否需要接收下行数据。在本示例中对一个小区而言，一个竞争期占用两个子帧，在一个竞争期内包含一块专用控制信息时频资源，两对竞争时频资源和数据传输时频资源，且竞争时频资源和数据传输时频资源与相邻小区相同。In this example, a pair of competing time-frequency resources and data transmission time-frequency resources (not actually limited to two pairs) are included in a competition period. The downlink contention shared spectrum configuration message does not include the time-frequency range of the competitive time-frequency resources, and the edge users only The control information on the time-frequency resource of the dedicated control information is determined to determine how to receive on the data transmission time-frequency resource and whether to receive the downlink data. In this example, for one cell, one contention period occupies two subframes, and one competition period contains one special section. With control information time-frequency resources, two pairs of competing time-frequency resources and data transmission time-frequency resources, and competing time-frequency resources and data transmission time-frequency resources are the same as neighboring cells.

本示例中在每个无线帧的子帧2，3和6，7上配置下行竞争共享频谱，连续两个子帧k和k+1(这里k＝2或6)上的配置如图7所示，其中横轴表示时间，纵轴表示频率，三个相邻小区1，2，3(对应的基站如图5所示分别为eNB1，eNB2和eNB3)同频，系统带宽为10MHz，在子帧k+1上三个相邻小区配置的专用控制信息时频资源正交，分别对应图7中的专用控制信息时频资源1，2和3，即时域上都是子帧k+1的第4到5个正交频分复用(OFDM)符号，频域上分别为第11到20个资源块(RB)，第21到30个RB，第31到40个RB。三个相邻小区配置的竞争时频资源和数据传输时频资源相同，其中，两个竞争时频资源在时域上都是子帧k的第10到14个OFDM符号，频域上竞争时频资源1是第17到18个RB，竞争时频资源2是第33到34个RB，对应的数据传输时频资源在时域上都是子帧k+1的第7到10个OFDM符号，频域上数据传输时频资源1是第2到24个RB，数据传输时频资源2是第27到49个RB。In this example, the downlink contention shared spectrum is configured on subframes 2, 3, and 6, 7 of each radio frame, and the configuration on two consecutive subframes k and k+1 (here, k=2 or 6) is as shown in FIG. Wherein the horizontal axis represents time and the vertical axis represents frequency, and three adjacent cells 1, 2, 3 (the corresponding base stations are eNB1, eNB2 and eNB3 respectively as shown in FIG. 5) have the same frequency, and the system bandwidth is 10 MHz in the subframe. The dedicated control information of the three adjacent cells configured on k+1 is orthogonal to the time-frequency resources, respectively corresponding to the dedicated control information time-frequency resources 1, 2 and 3 in FIG. 7, and the instant domain is the subframe k+1. 4 to 5 orthogonal frequency division multiplexing (OFDM) symbols, in the frequency domain are 11th to 20th resource blocks (RBs), 21st to 30th RBs, and 31st to 40th RBs, respectively. The contention time-frequency resources of the three adjacent cells are the same as the data transmission time-frequency resources, wherein the two competing time-frequency resources are the 10th to 14th OFDM symbols of the subframe k in the time domain, and the frequency domain competes. The frequency resource 1 is the 17th to 18th RB, the contention time-frequency resource 2 is the 33rd to 34th RB, and the corresponding data transmission time-frequency resource is the 7th to 10th OFDM symbols of the subframe k+1 in the time domain. The data transmission time-frequency resource 1 in the frequency domain is the 2nd to 24th RBs, and the data transmission time-frequency resource 2 is the 27th to 49th RBs.

每个eNB生成下行竞争共享频谱配置消息，并将该消息发送给下属边缘用户，该消息包含了在连续两个子帧内的本小区的专用控制信息时频资源，下行竞争共享频谱资源所在的子帧(这里设置为子帧2，3，6，7)。Each eNB generates a downlink contention shared spectrum configuration message, and sends the message to the subordinate edge user, where the message includes the dedicated control information time-frequency resource of the current cell in two consecutive subframes, and the downlink competition shared spectrum resource is located in the sub-frame. Frame (here set to subframe 2, 3, 6, 7).

eNB向下属边缘用户发送下行竞争共享频谱配置消息的方式以及边缘用户的确定方法与示例一相同，这里不再赘述。The manner in which the eNB sends the downlink contention shared spectrum configuration message to the subordinate edge user and the method for determining the edge user is the same as that in the first example, and details are not described herein again.

eNB运行竞争算法，获取数据传输时频资源上的发送机会，具体地为：eNB针对每个竞争时频资源分别设置一个退避计数器，也就是说每个eNB设置两个退避计数器，每个退避计数器的退避规则与示例一中相同。The eNB runs a contention algorithm to obtain a transmission opportunity on the data transmission time-frequency resource. Specifically, the eNB sets a backoff counter for each contention time-frequency resource, that is, each eNB sets two backoff counters, and each backoff counter. The backoff rule is the same as in the first example.

竞争结果为：eNB1竞争到数据传输时频资源1，eNB2竞争到数据传输时频资源2，因此eNB1在数据传输时频资源1上调度下属边缘用户，向下属边缘用户发送下行数据，并在本小区的专用控制信息时频资源1上发送对应的控制信息，以辅助边缘用户接收并解调下行数据；eNB2在数据传输时频资源2上调度下属边缘用户，向下属边缘用户发送下行数据，并在本小区的专用控制信息时频资源2上发送对应的控制信息，以辅助边缘用户接收并解调下行数据。The result of the competition is: eNB1 competes for data transmission time-frequency resource 1, and eNB2 competes for data transmission. The time-frequency resource 2 is transmitted. Therefore, the eNB1 schedules the subordinate users on the data transmission time-frequency resource 1, and transmits the downlink data to the subordinate edge users, and sends corresponding control information on the dedicated control information time-frequency resource 1 of the local cell to assist The edge user receives and demodulates the downlink data; the eNB2 schedules the subordinate user on the data transmission time-frequency resource 2, and transmits the downlink data to the subordinate edge user, and sends the corresponding control information on the time-frequency resource 2 of the dedicated control information of the cell. The secondary data is received and demodulated by the secondary edge user.

每个eNB的下属边缘用户在服务小区的专用控制信息时频资源上检测控制信息，并根据控制信息接收服务eNB发送的下行数据，具体方法是现有技术，这里不再赘述。The subordinate edge user of each eNB detects the control information on the dedicated control information time-frequency resource of the serving cell, and receives the downlink data sent by the serving eNB according to the control information. The specific method is the prior art, and details are not described herein again.

值得说明的是，在本示例中竞争失败的eNB可以使用子帧k+1上本小区的专用控制时频资源，且在满足一定功率限制的条件下也可以使用数据传输时频资源，因为在第k+1子帧之前eNB可以获得竞争结果，因此竞争失败的eNB可以按照正常的调度方式确定将k+1子帧上的数据传输时频资源分配给中心用户，例如可以在数据传输时频资源上以较小的发射功率向下属中心用户传输数据。It should be noted that, in this example, the eNB that fails the competition may use the dedicated control time-frequency resource of the current cell in the subframe k+1, and may also use the data transmission time-frequency resource under the condition that a certain power limit is met, because The eNB can obtain the contention result before the k+1th subframe, so the eNB that fails the competition can determine the data transmission time-frequency resource on the k+1 subframe to be allocated to the central user according to the normal scheduling manner, for example, the data transmission time frequency can be The data is transmitted to the central user at a lower transmission power.

示例五Example five

本示例中相邻eNBs通过有线接口竞争数据传输时频资源，这时竞争时频资源仅仅是一个时间上的概念，因此这里可以称之为竞争时间段，也就是说，不对应具体的无线时频资源，各eNBs根据设置的竞争时间段以及竞争规则来竞争数据传输时频资源，各eNBs下的边缘用户根据在服务小区的专用控制信息时频资源上检测的控制信息接收下行数据。In this example, neighboring eNBs compete for data transmission time-frequency resources through a wired interface. At this time, competing time-frequency resources is only a concept of time, so it can be called a contention time period, that is, when it does not correspond to a specific wireless time. For the frequency resource, each eNBs competes for data transmission time-frequency resources according to the set competition time period and the competition rule, and the edge users under each eNBs receive the downlink data according to the control information detected on the time-frequency resources of the dedicated control information of the serving cell.

本示例中一个子帧上的下行竞争共享频谱资源的配置如图8所示，竞争时间段的取值与示例一竞争时频资源对应的时域范围类似，例如取值为本竞争期的专用控制信息时频资源之前的5个OFDM符号的时间；另外，竞争专用控制信息时频资源和数据时频资源的配置与示例一相同，这里不再赘述。 The configuration of the downlink contention shared spectrum resource in one subframe in this example is as shown in FIG. 8. The value of the contention period is similar to the time domain range corresponding to the example one time-frequency resource. For example, the value is dedicated to the competition period. The time of the 5 OFDM symbols before the information time-frequency resource is controlled. In addition, the configuration of the time-frequency resource and the data time-frequency resource of the contention-specific control information is the same as that of the first example, and details are not described herein again.

每个eNB生成下行竞争共享频谱配置消息，并将该消息发送给下属边缘用户，该消息包含了在一个子帧内的本小区的专用控制信息时频资源，下行竞争共享频谱资源所在的子帧(这里设置为子帧1，3，6，8)。Each eNB generates a downlink contention shared spectrum configuration message, and sends the message to the subordinate edge user, where the message includes the dedicated control information time-frequency resource of the local cell in one subframe, and the subframe in which the downlink contention shared spectrum resource is located (Here set to subframe 1, 3, 6, 8).

eNB运行竞争算法，获取数据传输时频资源上的发送机会，具体过程和示例一类似，只不过退避计数器的退避时间粒度可以根据有线传输的时间粒度设置，不必是OFDM符号的正整数倍。The eNB runs the contention algorithm to obtain the transmission opportunity on the data transmission time-frequency resource. The specific procedure is similar to that in the first example, except that the backoff time granularity of the backoff counter can be set according to the time granularity of the wired transmission, and is not necessarily a positive integer multiple of the OFDM symbol.

竞争成功的eNB在数据传输时频资源上调度下属边缘用户，向下属边缘用户发送下行数据，并在本小区的专用控制信息时频资源上发送对应的控制信息，以辅助边缘用户接收并解调下行数据。The eNB successfully competing schedules subordinate users on the data transmission time-frequency resource, and transmits downlink data to the subordinate edge users, and sends corresponding control information on the dedicated control information time-frequency resources of the cell to assist the edge user to receive and demodulate. Downstream data.

在本示例中，由于没有配置竞争时频资源，因此边缘用户只能通过在服务小区的专用控制时频资源上检测控制信息，根据控制信息接收下行数据。In this example, since the contention time-frequency resource is not configured, the edge user can only receive the downlink information by detecting the control information on the dedicated control time-frequency resource of the serving cell.

值得说明的是，在本示例中，也可以将竞争时间段配置在专用控制信息时频资源所在子帧的前一子帧上，这样就可以像示例四那样，在本竞争期内，竞争失败的eNB可以使用本小区的专用控制时频资源，且在满足一定功率限制的条件下也可以使用数据传输时频资源。It should be noted that, in this example, the contention time period may also be configured in the previous subframe of the subframe in which the dedicated control information time-frequency resource is located, so that, as in the fourth example, the competition fails during the competition period. The eNB can use the dedicated control time-frequency resource of the local cell, and can also use the data transmission time-frequency resource under the condition that a certain power limit is met.

示例六Example six

如图9所示，本示例中一个竞争期内包含一对竞争时频资源和数据传输时频资源，eNB先在竞争时频资源上通过竞争方式获取数据传输时频资源上的发送机会，然后竞争成功的eNB向边缘用户发送下行竞争共享频谱配置消息，该消息中仅包含该eNB的专用控制信息时频资源的时频范围，该消息可以按照正常向用户发送数据的方式发送(即在PDSCH上发送给用户，可以采用较低的调制阶数以提高传输成功，对应的控制信息在PDCCH上发送)，也可以直接在PDCCH上发送。边缘用户首先接收下行竞争共享频谱配置消息，根据接收到的下行竞争共享频谱配置消息中的专用控制信息时频资源的时频范围，解调该eNB在专用控制信息时频资源上发送的控制信息，然后根据控制信息接收并解调该eNB在数据传输时频资源上发送的下行数据。As shown in FIG. 9 , in this example, a competition period includes a pair of competing time-frequency resources and data transmission time-frequency resources, and the eNB first obtains a transmission opportunity on the data transmission time-frequency resource through contention on the contention time-frequency resources, and then The successfully competing eNB sends a downlink contention shared spectrum configuration message to the edge user, where the message only includes the time-frequency of the time-frequency resource of the dedicated control information of the eNB. The message can be sent in the manner of sending data to the user normally (that is, sent to the user on the PDSCH, the lower modulation order can be used to improve the transmission success, the corresponding control information is sent on the PDCCH), or directly Sent on the PDCCH. The edge user first receives the downlink contention shared spectrum configuration message, and demodulates the control information sent by the eNB on the time-frequency resource of the dedicated control information according to the time-frequency range of the time-frequency resource of the dedicated control information in the received downlink contention shared spectrum configuration message. And then receiving and demodulating the downlink data sent by the eNB on the data transmission time-frequency resource according to the control information.

示例七Example seven

本示例与其它示例的主要区别是退避计数器采用时频域退避，即按竞争资源块退避，而其它示例均采用时域退避。The main difference between this example and other examples is that the backoff counter uses time-frequency domain backoff, that is, it is backed by competing resource blocks, while other examples use time domain backoff.

本示例中在每个无线帧的子帧1，3，6，8上配置下行竞争共享频谱，每个子帧上的配置如图10所示，其中横轴表示时间，纵轴表示频率，三个相邻小区1，2，3(对应的基站如图5所示分别为eNB1，eNB2和eNB3)同频，系统带宽为10MHz，三个相邻小区配置的专用控制信息时频资源正交，分别对应图10中的专用控制信息时频资源1，2和3，即时域上都是子帧的第6到9个正交频分复用(OFDM)符号，频域上分别为第11到20个资源块(RB)，第21到30个RB，第31到40个RB。三个相邻小区配置的竞争时频资源和数据传输时频资源相同，其中，竞争时频资源在时域上是子帧的第4到5个OFDM符号，频域上是第11到40个RB，数据传输时频资源在时域上是子帧的第10到14个OFDM符号，频域上为第11到40个RB。In this example, the downlink contention shared spectrum is configured on subframes 1, 3, 6, and 8 of each radio frame, and the configuration on each subframe is as shown in FIG. 10, wherein the horizontal axis represents time and the vertical axis represents frequency, three The neighboring cells 1, 2, and 3 (the corresponding base stations are eNB1, eNB2, and eNB3 respectively) are co-frequency, the system bandwidth is 10 MHz, and the dedicated control information of the three adjacent cells is orthogonal to the time-frequency resources. Corresponding to the dedicated control information time-frequency resources 1, 2 and 3 in FIG. 10, the 6th to 9th orthogonal frequency division multiplexing (OFDM) symbols of the subframe are in the real-time domain, and the 11th to 20th frequency bands are respectively in the frequency domain. Resource Blocks (RBs), 21st to 30th RBs, 31st to 40th RBs. The contention time-frequency resources of the three adjacent cells are the same as the data transmission time-frequency resources, wherein the contention time-frequency resources are the 4th to 5th OFDM symbols of the subframe in the time domain, and the 11th to 40th in the frequency domain. RB, the data transmission time-frequency resource is the 10th to 14th OFDM symbols of the subframe in the time domain, and the 11th to 40th RBs in the frequency domain.

每个eNB生成下行竞争共享频谱配置消息，并将该消息发送给下属边缘用户，该消息包含了在一个子帧内的本小区的专用控制信息时频资源，下行竞争共享频谱资源所在的子帧(这里设置为子帧1，3，6，8)，竞争时频资源的时频范围，竞争时频资源上的传输配置(调制阶数，传输模式)，竞争时频资源上传输竞争成功消息占用的频域范围为4个RB，竞争时频资源上传输竞争成功消息占用的时域范围为一个OFDM符号，退避计数器在频域上的退避顺序为由低到高，退避计数器类型为按竞争资源块退避。Each eNB generates a downlink contention shared spectrum configuration message, and sends the message to the subordinate edge user, where the message includes the dedicated control information time-frequency resource of the local cell in one subframe. The subframe in which the downlink competing shared spectrum resource is located (set here as subframes 1, 3, 6, and 8), the time-frequency range of the competing time-frequency resource, and the transmission configuration (modulation order, transmission mode) on the competing time-frequency resource, The frequency domain of the transmission succession message on the competitive time-frequency resource is 4 RBs. The time domain of the competition success message on the competition time-frequency resource is one OFDM symbol, and the back-off sequence of the back-off counter in the frequency domain is low. To the high, the backoff counter type is backed by the competitive resource block.

下面重点描述一下eNB基于时频域资源退避的竞争算法。The following focuses on the eNB's competition algorithm based on time-frequency domain resource backoff.

首先，根据一个竞争成功消息占用的时域范围和频域范围确定划分竞争时频资源的时频域粒度，并按照所述时频域粒度将竞争时频资源划分为竞争资源块，例如由竞争时频资源上传输竞争成功消息占用的时频范围可知，时域粒度为一个OFDM符号，频域粒度为4个RB。然后，对竞争资源块进行编号，编号规则为按照先频域后时域，且在频域上根据退避计数器在频域上的退避顺序由小到大对竞争资源块进行编号，划分后竞争资源块的编号结果如图11所示。First, determining a time-frequency domain granularity of a contention time-frequency resource according to a time domain range and a frequency domain range occupied by a contention success message, and dividing the contention time-frequency resource into a competitive resource block according to the time-frequency domain granularity, for example, by competition The time-frequency range occupied by the transmission succession message on the time-frequency resource is that the time domain granularity is one OFDM symbol and the frequency domain granularity is 4 RBs. Then, the contention rules are numbered according to the time domain of the pre-frequency domain, and the contention blocks are numbered according to the backoff sequence of the backoff counter in the frequency domain from small to large, and the contention resources are divided. The block numbering result is shown in Figure 11.

eNB运行竞争算法，获取数据传输时频资源上的发送机会，具体地为：eNB设置退避计数器，当竞争时频资源的时间到达时，eNB根据退避计数器的值确定发送竞争成功消息占用竞争资源块的编号，例如在编号为退避计数器的值加1的竞争资源块上发送竞争成功消息，其中eNB初始设置的退避计数器的值小于竞争资源块的最大编号。这时可能发生如下几种情况：The eNB runs a contention algorithm to obtain a transmission opportunity on the data transmission time-frequency resource. Specifically, the eNB sets a backoff counter. When the time of the contention time-frequency resource arrives, the eNB determines to send the contention success message to occupy the contention resource block according to the value of the backoff counter. The number, for example, sends a contention success message on the contention resource block numbered 1 plus the value of the backoff counter, wherein the value of the backoff counter initially set by the eNB is less than the maximum number of the contention resource block. At this time, the following situations may occur:

1)eNB在发送竞争成功消息之前收到了其它eNB发送的竞争成功消息。这时eNB将退避计数器减k，k为eNB检测到的竞争成功消息占用的竞争资源块的最小编号。然后eNB冻结退避计数器，等待下一个竞争时频资源的时间到达，继续参与竞争；1) The eNB receives a contention success message sent by another eNB before transmitting the contention success message. At this time, the eNB reduces the backoff counter by k, which is the minimum number of the contention resource block occupied by the contention success message detected by the eNB. Then, the eNB freezes the backoff counter, waits for the time of the next competing time-frequency resource to arrive, and continues to participate in the competition;

2)eNB发送竞争成功消息后在T时间(例如2微秒)内没有收到其它eNBs发送的竞争成功消息，则该eNB竞争成功； 2) After the eNB sends the contention success message and does not receive the contention success message sent by the other eNBs in the T time (for example, 2 microseconds), the eNB competes successfully;

3)eNB发送竞争成功消息后在时间T内收到其它eNBs发送的竞争成功消息，eNB比较自己发送竞争成功消息占用的竞争资源块的编号与其它eNBs发送竞争成功消息占用的竞争资源块的编号的大小：a)当该eNB发送竞争成功消息占用的竞争资源块编号小于其它eNBs时，则该eNB竞争成功；b)当该eNB发送竞争成功消息占用的竞争资源块编号大于其它eNBs时，则该eNB将退避计数器减k，k为该eNB检测到的竞争成功消息占用的竞争资源块的最小编号。然后该eNB冻结退避计数器，等待下一个竞争时频资源的时间到达，继续参与竞争；c)当该eNB发送竞争成功消息占用的竞争资源块编号最小，且与至少一个其它eNB发送竞争成功消息占用的竞争资源块编号相等时，则该eNB重置退避计数器，且退避计数器的值位于竞争时频资源的剩余时间内竞争资源块的最小和最大编号之间，继续参与竞争。3) After receiving the contention success message, the eNB receives the contention success message sent by the other eNBs in the time T, and the eNB compares the number of the contention resource block occupied by the contention success message with the number of the contention resource block occupied by the other eNBs to send the contention success message. The size of the eNB is competitive when the eNB sends the contention of the contention block to be smaller than the other eNBs; b) when the eNB sends the contention of the contention of the competition success message to be larger than other eNBs, then The eNB reduces the backoff counter by k, where k is the lowest number of the contention resource block occupied by the contention success message detected by the eNB. Then, the eNB freezes the backoff counter, waits for the time of the next contention time-frequency resource to arrive, and continues to participate in the competition; c) when the eNB sends the contention competition success message, the contention of the competition resource block is the smallest, and the at least one other eNB sends the contention of the competition success message. When the contention block numbers are equal, the eNB resets the backoff counter, and the value of the backoff counter is located between the minimum and maximum numbers of the contention resource blocks in the remaining time of the contention time-frequency resource, and continues to participate in the competition.

各eNB下的边缘用户根据下行竞争共享频谱配置消息中的竞争时频资源的时频范围、竞争时频资源上的传输配置(调制阶数，传输模式)、竞争时频资源上传输竞争成功消息占用的频域和时域范围、退避计数器在频域上的退避顺序，以及退避计数器类型，在竞争时频资源上监听竞争成功消息，会发生三种情况：1)当边缘用户在竞争时频资源上没有监听到任何竞争成功消息时，说明边缘用户的服务小区竞争失败；2)当边缘用户在检测到竞争成功消息的编号最小的一个竞争资源块上监听到一个竞争成功消息时，边缘用户判断竞争成功消息是否是服务小区发送的，如果边缘用户收到的竞争成功消息是其服务小区发送的，则说明边缘用户的服务小区竞争成功，否则说明边缘用户的服务小区竞争失败；3)当边缘用户在检测到竞争成功消息的编号最小的竞争资源块上监听到多个竞争成功消息时，如果其中一个竞争成功消息是服务小区发送的，则边缘用户继续在该竞争时频资源上监听竞争成功消息，并根据之后监听的结果判断服务小区是否竞争成功，否则说明边缘用户的服务小区竞争失败。The edge users of each eNB share the time-frequency range of the contention time-frequency resources in the downlink contention shared spectrum configuration message, the transmission configuration (modulation order, transmission mode) on the contention time-frequency resources, and the transmission competition success message on the contention time-frequency resources. The occupied frequency domain and time domain range, the backoff sequence of the backoff counter in the frequency domain, and the backoff counter type, and the contention success message is monitored on the competitive time-frequency resource. Three situations occur: 1) When the edge user is competing in the time-frequency When no competing success message is detected on the resource, it indicates that the serving cell of the edge user fails to compete; 2) when the edge user listens to a contention success message on the contention resource block with the lowest number of the contention success message, the edge user Determining whether the contention success message is sent by the serving cell. If the contention success message received by the edge user is sent by the serving cell, the edge cell's serving cell competition is successful, otherwise the edge user's serving cell competition fails; The edge user detects the contention success message with the lowest number of competing resource blocks. When a plurality of competing hearing success message, if one of the competitive success message sent by the serving cell, then the edge user continues to listen for frequency resource competition success message when the contention, and determines based on the result after listening service Whether the cell is successful in competition, otherwise the competition of the service cells of the edge users fails.

在上述3)中，边缘用户继续在该竞争时频资源上监听竞争成功消息，并根据之后监听的结果判断服务小区是否竞争成功的方法为，如果边缘用户之后在监听到竞争成功消息的编号最小竞争资源块上只检测到一个竞争成功消息，且是服务小区发送的，则服务小区竞争成功，否则服务小区竞争失败；如果边缘用户之后在监听到竞争成功消息的编号最小竞争资源块上检测到多个竞争成功消息，则按照3)的方式继续监听当前竞争时频资源或者下一个竞争时频资源。In the foregoing 3), the method for the edge user to continue to listen to the contention success message on the contention time-frequency resource and determine whether the serving cell competes successfully according to the result of the subsequent monitoring is, if the edge user listens to the lowest number of the competition success message. If only one contention success message is detected on the contention resource block and is sent by the serving cell, the serving cell competes successfully, otherwise the serving cell fails to compete; if the edge user subsequently detects the numbered minimum contention resource block that is listening to the contention success message For multiple contention success messages, continue to listen to the current contention time-frequency resource or the next contention time-frequency resource in the manner of 3).

如果边缘用户的服务小区竞争成功，则边缘用户在服务小区的专用控制信息时频资源上检测控制信息，根据控制信息接收下行数据，否则如果边缘用户的服务小区竞争失败，则边缘用户等待下一个竞争时频资源的时间到达，继续在竞争时频资源上监听竞争成功消息。If the serving cell of the edge user competes successfully, the edge user detects the control information on the dedicated control information time-frequency resource of the serving cell, and receives the downlink data according to the control information. Otherwise, if the serving cell of the edge user fails to compete, the edge user waits for the next one. The time of arrival of the competitive time-frequency resource arrives, and the competition success message is continuously monitored on the competitive time-frequency resource.

在上述所有示例中，需要说明的是：1)在一个竞争期内，当配置一对竞争时频资源和数据传输时频资源时，例如上述示例一、二、三、五、六，相邻小区的专用控制信息时频资源也可以相同；(2)eNB在下行竞争共享频谱上传输信息时需要避开小区参考信号(CRS)所在的资源粒子(RE，Resource Element)；3)下行竞争共享频谱的配置除了可以由eNB的上层管理节点配置外，也可以由相邻eNBs通过分布式协商确定，或者由某一个eNB确定，并将配置结果发送给其它eNBs；4)没有参与竞争的eNB可以在满足一定功率限制的条件下，在数据传输时频资源上传输数据；5)在一个竞争期内，当竞争时频资源和数据传输时频资源分别位于前后两个不同的子帧上，且所述数据传输时频资源是后一子帧中物理下行共享信道PDSCH所在时频资源的一部分时，则竞争失败的eNBs可以在满足一定功率限制的条件下使用数据传输时频资源传输数据；6)专用控制信息时频资源也可以位于物理下行控制信道PDCCH所在的时频域内，只要满足“在一个竞争期内，在时间上竞争时频资源位于专用控制信息时频资源之前” 即可，例如在示例四和七中，专用控制信息时频资源也可以位于其所在子帧的物理下行控制信道PDCCH所在的时频域内；7)在示例一至示例五中，从图6至图8可以看出，配置下行竞争共享频谱的一个子帧中总是存在一些RB的一部分OFDM符号被下行竞争共享频谱占用，而另外一部分OFDM符号没有被下行竞争共享频谱占用，这些没有被下行竞争共享频谱占用的OFDM符号，可以分配给非竞争共享用户；8)在示例六和七中，从图9和图10可以看出，配置的下行竞争共享频谱在时域上占用了一个子帧的除了PDCCH所占用的OFDM(这里以PDCCH占用一个子帧的前3个OFDM符号为例)符号外的所有OFDM符号；这样能够较好地兼容现有的LTE系统，且不会浪费频谱资源，当然如果不考虑兼容现有LTE系统，配置的下行竞争共享频谱在时域上也可以占用整个子帧。In all the above examples, it should be noted that: 1) during a competition period, when a pair of competing time-frequency resources and data transmission time-frequency resources are configured, for example, the above examples one, two, three, five, six, adjacent The time-frequency resources of the dedicated control information of the cell may also be the same; (2) the eNB needs to avoid the resource element (RE, Resource Element) where the cell reference signal (CRS) is located when transmitting information on the downlink contention shared spectrum; 3) downlink content sharing The configuration of the spectrum may be configured by the upper management node of the eNB, or may be determined by the neighboring eNBs through distributed negotiation, or determined by one eNB, and the configuration result may be sent to other eNBs; 4) the eNB that does not participate in the competition may Under the condition that a certain power limit is met, the data is transmitted on the data transmission time-frequency resource; 5) during a competition period, when the contention time-frequency resource and the data transmission time-frequency resource are respectively located in two different subframes, and When the data transmission time-frequency resource is part of the time-frequency resource of the physical downlink shared channel PDSCH in the subsequent subframe, the eNBs that fail to compete may meet a certain power limit. The data transmission time-frequency resource is used to transmit data; 6) the dedicated control information time-frequency resource may also be located in the time-frequency domain where the physical downlink control channel PDCCH is located, as long as the time-frequency resource is competing in time during a competition period. Located before the dedicated control information time-frequency resource" For example, in examples 4 and 7, the dedicated control information time-frequency resource may also be located in the time-frequency domain where the physical downlink control channel PDCCH of the subframe in which it is located; 7) In the example one to the fifth example, from FIG. 6 to FIG. 8 It can be seen that in a subframe in which the downlink contention shared spectrum is configured, a part of OFDM symbols of some RBs are always occupied by the downlink contention shared spectrum, and another part of the OFDM symbols are not occupied by the downlink contention shared spectrum, which are not shared by the downlink competition. The OFDM symbols occupied by the spectrum can be allocated to the non-contention shared users; 8) In Examples 6 and 7, it can be seen from FIG. 9 and FIG. 10 that the configured downlink contention shared spectrum occupies one subframe in the time domain. OFDM occupied by the PDCCH (here, the PDCCH occupies the first 3 OFDM symbols of one subframe as an example) all OFDM symbols outside the symbol; this can be well compatible with existing LTE systems without wasting spectrum resources, of course Regardless of compatibility with the existing LTE system, the configured downlink contention shared spectrum may occupy the entire subframe in the time domain.

上述实施例提供的一种下行资源共享方法和装置，通过相邻小区配置相同的竞争时频资源和专用控制信息时频资源对，相邻小区的通信站点通过竞争获得数据传输时频资源上的发送机会，可以较动态地分配相邻小区用于调度竞争共享用户的频谱资源，同时避免了相邻小区之间的相互干扰；另外，没有参与竞争的通信站点可以在满足一定功率限制的条件下使用数据传输时频资源，进一步提高了频谱资源的利用率。The downlink resource sharing method and device provided by the foregoing embodiment are configured to configure the same contention time-frequency resource and the dedicated control information time-frequency resource pair in the neighboring cell, and the communication site of the neighboring cell obtains the data transmission time-frequency resource through competition. The transmission opportunity may dynamically allocate the neighboring cells to schedule the spectrum resources of the contention sharing users, and avoid mutual interference between adjacent cells; in addition, the communication stations that do not participate in the competition may satisfy the certain power limit. The use of data transmission time-frequency resources further improves the utilization of spectrum resources.

本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件完成，所述程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现，相应地，上述实施例中的各模块/单元可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。本发明不限制于任何特定形式的硬件和软件的结合。One of ordinary skill in the art will appreciate that all or a portion of the steps described above can be accomplished by a program that instructs the associated hardware, such as a read-only memory, a magnetic or optical disk, and the like. Optionally, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits. Accordingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented by using a software function module. Formal realization. The invention is not limited to any specific form of combination of hardware and software.

需要说明的是，本发明还可有其他多种实施例，在不背离本发明精神及其实质的情况下，熟悉本领域的技术人员可根据本发明作出各种相应的改变和变形，但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。It should be noted that the present invention may be embodied in various other embodiments, and those skilled in the art can make various corresponding embodiments according to the present invention without departing from the spirit and scope of the invention. Changes and modifications are intended to be included within the scope of the appended claims.

Industrial applicability

本发明实施例提供的上述技术方案，可以应用于下行资源共享过程中，通过相邻小区配置相同的竞争时频资源和专用控制信息时频资源对，相邻小区的通信站点通过竞争获得数据传输时频资源上的发送机会，可以较动态地分配相邻小区用于调度竞争共享用户的频谱资源，同时避免了相邻小区之间的相互干扰；另外，没有参与竞争的通信站点可以在满足一定功率限制的条件下使用数据传输时频资源，进一步提高了频谱资源的利用率。 The foregoing technical solution provided by the embodiment of the present invention may be applied to a downlink resource sharing process, where the same contention time-frequency resource and dedicated control information time-frequency resource pair are configured by the neighboring cell, and the communication site of the neighboring cell obtains data transmission through competition. The transmission opportunity on the time-frequency resource can dynamically allocate the spectrum resources of the neighboring cell for scheduling the contention of the shared user, and avoid mutual interference between adjacent cells; in addition, the communication station that does not participate in the competition can satisfy certain The use of data transmission time-frequency resources under power limiting conditions further improves the utilization of spectrum resources.

Claims

A method for downlink resource sharing, applied to a site, including:

Obtaining configuration information of downlink competitive shared spectrum resources;

Competing for the opportunity to send downlink data on the competitive time-frequency resource according to the configuration information;

After competing for the sending opportunity, sending downlink data to the contention sharing user on the data transmission time-frequency resource;

The downlink contention shared spectrum resource includes at least one of the following resources: a competitive time-frequency resource, a dedicated control information time-frequency resource, and a data transmission time-frequency resource.

The method of claim 1 wherein:

The configuration information of the downlink contention shared spectrum resource includes at least one of the following information:

Time-frequency range of competing time-frequency resources, time-frequency range of time-frequency resources of dedicated control information, time-frequency range of time-frequency resources of data transmission, subframes in which downlink shared spectrum resources are located, transmission configuration on competitive time-frequency resources, and competition The frequency domain range occupied by the communication success message on the time-frequency resource, the time domain range occupied by the transmission competition success message on the contention time-frequency resource, the back-off sequence of the back-off counter in the frequency domain, and the back-off counter type.

The method of claim 1 wherein:

The downlink contention shared spectrum resource satisfies at least one of the following a)-d) conditions:

a) competing time-frequency resources, dedicated control information, time-frequency resources, and data transmission time-frequency resources are orthogonal;

b) During a competition period, competing time-frequency resources and data transmission time-frequency resources appear in pairs, and are configured as one or more pairs of competing time-frequency resources and data transmission time-frequency resources, and competing time-frequency resources of adjacent cells and The data transmission time and frequency resources are the same;

c) during a competition period, a cell is configured with a dedicated control information time-frequency resource;

d) During a competition period, the time-frequency resources in the time domain are located in front of the dedicated control information time-frequency resources and the data transmission time-frequency resources.

The method of claim 1 wherein:

Obtain the configuration information of the downlink competitive shared spectrum resource, including obtaining the following one of the following methods:

a) obtaining configuration information of the downlink contention shared spectrum resource from the upper management node;

b) determining the configuration of the downlink contention shared spectrum resource after negotiating with the neighboring station;

c) Obtain configuration information of the downlink contention shared spectrum resource from the designated station.

The method of claim 1, wherein after competing for the transmission opportunity, the method further comprises:

Sending a downlink contention shared spectrum resource configuration message to the contention sharing user, where the downlink contention shared spectrum resource configuration information is carried.

The method of claim 1 wherein prior to competing for the opportunity to transmit downlink data, the method further comprises:

Control information related to the downlink data is sent to the contention sharing user on the dedicated control information time-frequency resource.

The method of claim 1 wherein:

Opportunity to compete for sending downstream data on competing time-frequency resources, including:

The competition algorithm is run on the competition time-frequency resource. If the competition is successful, the subordinate competition sharing user can be scheduled on the data transmission time-frequency resource corresponding to the competition time-frequency resource.

The method of claim 8 wherein:

The running the competition algorithm on the competitive time-frequency resource includes:

When the backoff counter type is time-backed, when the time of the competing time-frequency resource arrives, the contention rule is as follows: the back-off counter starts performing back-off, and when the back-off counter is zero, the contention success message is sent on the contention time-frequency resource, and If the competition success message sent by other stations is not received within the time T, the competition is successful, and the backoff counter is reset as the initial value of the backoff counter at the next competition; if at the time After receiving the contention success message sent by other stations in T, the backoff counter is set to the selected random number and continues to compete according to the competition rules; or

When the backoff counter type is backoff by time, if a contention success message sent by another station is received during the backoff process, the backoff counter is frozen, waiting for the time of the next competing time-frequency resource to arrive, and continuing to participate in the competition; or

When the backoff counter type is backed by the contention resource block, the number of the contention competition resource block is determined according to the value of the backoff counter, and then the predetermined contention rule is used to compete for the data transmission time-frequency resource.

The method of claim 9 wherein:

The taking the predetermined competition rule to compete for data transmission time-frequency resources, including:

a) If a contention success message sent by another communication station is received before the contention success message is sent, the backoff counter is decremented by k, k is the contention detected by the communication station The minimum number of the contention resource block occupied by the success message, and then freezes the backoff counter, waits for the time of the next competitive time-frequency resource to arrive, and continues to participate in the competition;

b) if the contention success message sent by other stations is not received within a period of time T after the contention success message is sent, the contention is successful, and the backoff counter is reset as the initial value of the backoff counter at the next competition;

c) If a contention success message sent by another station is received within a period of time T after the contention success message is sent, the number of the contention resource block occupied by the contention success message is sent to the contention block of the competition resource occupied by the other station. The number is compared and the size is processed according to the comparison result.

The method of claim 10 wherein:

The processing according to the comparison result includes:

a) when the contention of the contending resource block occupied by the contention success message is smaller than the contention of the contending resource block occupied by the other communication station, the competition is successful, and the backoff counter is reset as the initial value of the backoff counter at the next competition;

b) when the contention of the contention of the contention of the contention of the competition success message is greater than that of the other communication station, the k-k is the contention of the competition resource occupied by the detected contention success message. The minimum number, then freeze the backoff counter, wait for the next competitive time-frequency resource to arrive, and continue to participate in the competition;

c) resetting the backoff counter when the contention of the contention block used by the contention success message is the smallest, and the value of the backoff counter is located in the competitive time-frequency resource when the contention of the contention of the contention is equal to that of the at least one other communication station. Between the minimum and maximum number of competing resource blocks in the remaining time, continue to participate in the competition.

The method of claim 1 wherein:

During a competition period, when a pair of competing time-frequency resources and data transmission time-frequency resources are configured, the time-frequency resources of the dedicated control information of the neighboring cells are the same or orthogonal; when more than one pair of competing time-frequency resources and data transmission are configured In the case of time-frequency resources, the dedicated control information of the neighboring cells is orthogonal to the time-frequency resources.

A downlink resource sharing method is applied to user equipment, including:

Receiving a downlink contention shared spectrum resource configuration message sent by the station, where the message carries downlink contention spectrum resource configuration information;

After detecting the control information on the dedicated control information time-frequency resource according to the configuration information, receiving downlink data on the data transmission time-frequency resource according to the control information;

The method of claim 13 wherein:

The method of claim 13 wherein the method further comprises:

If the control information is not detected on the dedicated control information time-frequency resource according to the configuration information, wait for the time of the next dedicated control information time-frequency resource to arrive, and continue to detect the control information on the next dedicated control information time-frequency resource. .

The method of claim 13, wherein the method further comprises: before detecting the control information on the dedicated control information time-frequency resource according to the configuration information, the method further comprising:

The contention success message is monitored on the contention time resource, and if the contention success message of the serving cell is monitored, the control information is detected on the time-frequency resource of the dedicated control information of the serving cell.

The method of claim 13 wherein the method further comprises:

Performing channel quality measurement on the frequency band in which the data transmission time-frequency resource is located according to the configuration information, and reporting the measurement result to the service site;

The measurement result is used by the service station to allocate time-frequency resources to the contention sharing user, and determine a modulation and coding manner of downlink data.

A downlink resource sharing device is applied to a site, including:

The configuration module is configured to obtain configuration information of the downlink contention shared spectrum resource;

a competition module, configured to compete for the opportunity to send downlink data on the competitive time-frequency resource according to the configuration information;

a sending module, configured to send downlink data to the contention sharing resource on the data transmission time-frequency resource after competing for the sending opportunity;

The apparatus of claim 18 wherein:

The configuration module is configured to obtain the configuration information of the downlink contention shared spectrum resource, including the following method:

The apparatus of claim 18, wherein said apparatus further comprises a first notification module:

The first notification module is configured to: after contending for the sending opportunity, send a downlink contention shared spectrum resource configuration message to the contention sharing user, or send a downlink contention shared spectrum to the contention sharing user before contending to send the downlink data opportunity. Resource configuration message;

The downlink contention shared spectrum resource configuration message carries the downlink contention shared spectrum resource configuration information.

The apparatus of claim 18 wherein said apparatus further comprises a second notification module:

The second notification module is configured to, after competing for the sending opportunity, send control information related to the downlink data to the contention sharing user on the dedicated control information time-frequency resource.

The apparatus of claim 18 wherein:

The competition module is set to compete for the opportunity to send downlink data on the competitive time-frequency resources, including:

The device of claim 22 wherein:

The competition module is set to run a competition algorithm on the competitive time-frequency resources, including:

When the backoff counter type is time-backed, when the time of the competing time-frequency resource arrives, The competition rule is as follows: the backoff counter starts to perform backoff. When the backoff counter is zero, the contention success message is sent on the contention time-frequency resource, and the time-frequency resource is continuously monitored for a period of time T, if not received within the time T If the contention success message is sent to the other station, the competition is successful, and the backoff counter is reset as the initial value of the backoff counter at the next competition; if the contention success message sent by the other station is received within the time T, the backoff counter is set to be selected. Set a random number and continue to compete in accordance with the competition rules; or

The apparatus of claim 23 wherein:

The competition module is set to take predetermined competition rules to compete for data transmission time-frequency resources, including:

a) If a contention success message sent by another communication station is received before the contention success message is sent, the backoff counter is decremented by k, k is the minimum number of the contention resource block occupied by the contention success message detected by the communication station, and then frozen The backoff counter waits for the time of the next competing time-frequency resource to arrive, and continues to participate in the competition;

c) If a contention success message sent by another station is received within a period of time T after the contention success message is sent, the competition resource block occupied by the contention success message is sent by itself. The number compares with the number of the contention resource blocks occupied by the other station to send the contention success message, and is processed according to the comparison result.

The apparatus of claim 24 wherein:

The competition module, set to process based on the comparison results, including:

A downlink resource sharing device is applied to user equipment, including:

The configuration information obtaining module is configured to receive a downlink contention shared spectrum resource configuration message sent by the station, where the message carries the downlink contention shared spectrum resource configuration information;

The control information detecting module is configured to detect the control information on the time-frequency resource of the dedicated control information according to the configuration information;

The data receiving module is configured to: after detecting the control information on the time-frequency resource of the dedicated control information, receive the downlink data on the data transmission time-frequency resource according to the control information;

The apparatus of claim 26 wherein:

The control information detecting module is configured to not detect the control information on the time-frequency resource of the dedicated control information, and wait for the time of the next dedicated control information time-frequency resource to arrive, and continue to detect the time-frequency resource of the next dedicated control information. Control information.

The apparatus of claim 26, further comprising:

The monitoring module is configured to monitor the contention success message on the contention time-frequency resource before detecting the control information on the time-frequency resource of the dedicated control information, such as monitoring the contention success message of the serving cell, and notifying the control information detecting module of the serving cell The control information is detected on the time-frequency resource of the control information.

The apparatus of claim 26, further comprising:

The measuring and reporting module is configured to perform channel quality measurement on the frequency band in which the data transmission time-frequency resource is located according to the configuration information, and report the measurement result to the service site;

The measurement result is set to be that the service station allocates a time-frequency resource to the contention shared user, and determines a modulation and coding mode of the downlink data.