WO2016169400A1

WO2016169400A1 - Channel access method and apparatus

Info

Publication number: WO2016169400A1
Application number: PCT/CN2016/077726
Authority: WO
Inventors: 王加庆; 潘学明; 沈祖康; 徐伟杰
Original assignee: 电信科学技术研究院
Priority date: 2015-04-21
Filing date: 2016-03-29
Publication date: 2016-10-27
Also published as: CN106162925A

Abstract

Disclosed are a channel access method and apparatus, which solve the problem of resource collision caused when base stations or terminals of a plurality of operators are completely synchronized. The method comprises: a communication device determining a current CCA detection position; and the communication device conducting CCA detection at the CCA detection position, and when it is determined that a current channel is idle, sending a signal over the current channel, so as to access the current channel. In this way, communication devices of various operators are effectively prevented from occupying the same time-frequency resource in a synchronization state, thereby greatly reducing the occurrence of a resource collision condition, and furthermore effectively preventing signal interference among communication devices.

Description

一种信道接入方法和装置Channel access method and device

本申请要求在2015年4月21日提交中国专利局、申请号为201510191750.6、申请名称为“一种信道接入方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。The present application claims priority to Chinese Patent Application No. 201510191750.6, filed on Apr. 21, 2015, which is hereby incorporated by reference. in.

技术领域Technical field

本申请涉及无线领域，尤其涉及一种信道接入方法和装置。The present application relates to the field of wireless, and in particular, to a channel access method and apparatus.

背景技术Background technique

随着移动数据业务量的不断增长，频谱资源越来越紧张，仅使用授权频谱资源进行网络部署和业务传输可能已经不能满足业务量需求，因此LTE(Long Term Evolution，长期演进)***可以考虑在非授权频谱资源上部署传输(Unlicensed LTE，简称为U-LTE或者LTE-U)，以提高用户体验和扩展覆盖。非授权频谱没有规划具体的应用***，可以为多种无线通信***如蓝牙、WiFi等共享，多种***间通过抢占资源的方式使用共享的非授权频谱资源。故不同运行商部署的LTE-U间及其LTE-U与WiFi等无线通信***的共存性是研究的一个重点与难点。3GPP要求保证LTE-U与WiFi等无线通信***的公平共存，非授权频段作为辅载波由授权频段的主载波辅助实现。先听后说(listen Before Talk，LBT)作为LTE-U竞争接入的基本手段，得到几乎所有公司的赞同。As the volume of mobile data continues to grow, the spectrum resources become more and more tense. Only the use of licensed spectrum resources for network deployment and service transmission may not meet the traffic demand. Therefore, the LTE (Long Term Evolution) system can be considered. Unlicensed LTE (U-LTE or LTE-U) is deployed on unlicensed spectrum resources to improve user experience and extend coverage. The unlicensed spectrum does not have a specific application system, and can be shared by various wireless communication systems such as Bluetooth, WiFi, etc., and the shared unlicensed spectrum resources are used by multiple systems by preempting resources. Therefore, the coexistence of LTE-U deployed by different operators and their wireless communication systems such as LTE-U and WiFi is a key point and difficulty in research. The 3GPP requires that the wireless coexistence of LTE-U and wireless communication systems such as WiFi be guaranteed. The unlicensed frequency band is used as a secondary carrier to be assisted by the primary carrier of the licensed frequency band. Listening to Talk (LBT) as the basic means of LTE-U competitive access, has been approved by almost all companies.

802.11***采用信道接入机制称为CSMA/CA(Carrier Sense Multiple Access with Collision Avoidance，载波监听/冲突避免)机制，WiFi***在非授权频谱上的抢占资源方式时，首先对信道进行监听，当信道空闲时间达到DIFS(Distributed Inter-Frame Space，分布式帧间间隙)，便判断当前信道为空闲信道，然后各个等待接入的信道的站点，便进入一个随机回退阶段，用于避免多个站点在相同的资源发生碰撞。此外，为了保证公平性，还规定每个站点不能长期占用频谱资源，到达一定时间或数据传输量上限时，需要释放资源，以供其他WiFi或LTE***抢占资源。The 802.11 system uses a channel access mechanism called CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance). When the WiFi system preempts the resource on the unlicensed spectrum, the channel is first monitored. When the idle time reaches the DIFS (Distributed Inter-Frame Space), the current channel is determined to be an idle channel, and then the stations waiting for access to the channel enter a random fallback phase to avoid multiple sites. Collisions in the same resource. In addition, in order to ensure fairness, it is also stipulated that each site cannot occupy spectrum resources for a long time. When a certain time or data transmission limit is reached, resources need to be released for other WiFi or LTE systems to seize resources.

为了提供一个灵活的公平的的自适应信道接入机制，欧洲要求在非授权的5150-5350MHz与5470-5725MHz频段采用LBT技术，LBT过程类似于WiFi的CSMA/CA机制，每个设备利用信道之前要进行CCA(Clear Channel Assessment，空闲信道评估)检测。CCA利用能量检测来判断当前信道是否有信号传输，从而确定信道是否被占用。ETSI标准将非授权频段的设备分类为fame-based与load-based，分别对应两类接入机制：FBE(Frame Based Equipment，基于帧设备)与LBE(Load Based Equipment，基于负荷设备)，具体如图1和图2所示。In order to provide a flexible and fair adaptive channel access mechanism, Europe requires LBT technology in the unlicensed 5150-5350MHz and 5470-5725MHz bands. The LBT process is similar to the WiFi CSMA/CA mechanism, before each device utilizes the channel. To perform CCA (Clear Channel Assessment) detection. The CCA uses energy detection to determine if the current channel has a signal transmission to determine if the channel is occupied. The ETSI standard classifies devices in the unlicensed band as fame-based and load-based, and corresponds to two types of access mechanisms: FBE (Frame Based Equipment) and LBE (Load Based Equipment). Specifically, as shown in Figures 1 and 2.

图1中，FBE接入在固定的帧结构位置执行CCA检测只要信道有一个CCA周期(不低于20us)判断为空就立刻接入信道，发起数据传输过程，信道传输时间占用时间相对固定,最小1ms最大10ms，空闲周期应该至少为信道占用时间的5％，在空闲周期的尾部的CCA时间内设备执行新的CCA检测再次接入信道。在FBE机制中信道占用时间加空闲(IDLE)周期是一个固定值称为固定帧周期(frame period)。In FIG. 1, the FBE access performs CCA detection at a fixed frame structure position. As long as the channel has a CCA period (not less than 20 us), the channel is immediately accessed and the data transmission process is initiated, and the channel transmission time occupation time is relatively fixed. The minimum 1ms maximum 10ms, the idle period should be at least 5% of the channel occupancy time, and the device performs a new CCA detection to access the channel again during the CCA time at the end of the idle period. The channel occupancy time plus idle (IDLE) period in the FBE mechanism is a fixed value called a fixed frame period.

图2中，LBE信道接入机制，每次传输对信道的占用时间与起点都是可变的，在获取信道之前要进行扩展CCA检测，产生一个随机的因子N，直到信道空闲时间达到CCA时间的N倍，且信道为闲，才接入信道，发起数据传输过程，最大的信道占用时间为13ms。In Figure 2, the LBE channel access mechanism is variable for each channel's occupied time and starting point. Before the channel is acquired, extended CCA detection is performed to generate a random factor N until the channel idle time reaches the CCA time. N times, and the channel is idle, access to the channel, initiate the data transmission process, the maximum channel occupation time is 13ms.

其中，FBE信道接入机制，适用于有固定帧结构的无线接入***，对非授权频段的LTE***来说，当只有一个运营商与WiFi共存时，采用FBE方式操作非常简单，很具吸引力，而且由于采用FBE方式由于只能在IDLE时段进行CCA检测，故加入一个FBE接入机制的LTE节点对WiFi的影响较小，且采用FBE-LTE-U所需的标准化复杂度工程实现复杂度明显低于LBE-LTE-U，性能未必比LBE-LTE-U差很多。故若采用FBE接入机制+载波选择，特别不同运营商通过载波选择分别占据不同的信道，是LTE-U的一种较好的选择。但是非授权频带存在许多不同的宽带无线接入网络，当竞争激烈时，不同的运营商不可避免的共享相同的频谱资源，然而按照目前现有的处理方法，会存在严重的问题，具体如图3所示，两个运营商采取最大传输周期为3个子帧，空闲周期为1个子帧，固定frame period为4个子帧，以下行链路为例，当两个运营商能够保持同步时，由于在每个空闲周期的CCA检测时都会判断为闲，故同时发送，导致两个运营商的传输在有共同业务的时间都是相碰的，如图3所示。两个运营商要求共享频谱的场景往往为业务需求较繁忙的场景，且由于两个运营商基站部署不容易统一规划，且多个基站部署比较密集，故两个或多个运营商相碰会导致干扰很大，从而严重影响性能。两个运营商出现同步场景对于FDD(Frequency division duplex，频分双工)与TDD(Time division duplex，时分双工)都不能完全排除。特别对于授权频段采用TDD模式，而且非授权频段也采用TDD帧结构这种情况，由于相邻的TDD基站既使是不同运营商部署，也必须保持严格同步，否则就会出现上下行串扰，而LAA目前达成的agreement要求，非授权频段的辅载波必须与授权频段的主载波保持同步，因此，相邻的工作在TDD频段的不同运营商的基站，其非授权频段的辅载波若不采用相同的TDD帧结构必然会导致上下行串扰，若采用相同的TDD帧结构，必然会导致不同运营商在非授权频段完全同步，采用FBE接入机制时，必然会发生多运营商同时碰撞现象，此时相当于没有LBT的情形，无论是基站还是终端都会干扰很大，特别在高负荷时会有较大的性能损失。Among them, the FBE channel access mechanism is applicable to a wireless access system with a fixed frame structure. For an LTE system with an unlicensed frequency band, when only one operator coexists with WiFi, the operation using the FBE mode is very simple and attractive. Force, and because the FBE method can only perform CCA detection in the IDLE period, the LTE node joining an FBE access mechanism has less impact on WiFi, and the standardization complexity engineering required by FBE-LTE-U is complicated. The performance is significantly lower than LBE-LTE-U, and the performance is not necessarily much worse than LBE-LTE-U. Therefore, if the FBE access mechanism + carrier selection is adopted, especially different operators occupy different channels through carrier selection, which is a better choice for LTE-U. However, there are many different broadband wireless access networks in the unlicensed band. When the competition is fierce, different operators inevitably share the same spectrum resources. However, according to the current existing processing methods, there will be serious problems, as shown in the figure. As shown in Figure 3, the two carriers adopt a maximum transmission period of 3 subframes, an idle period of 1 subframe, and a fixed frame period of 4 subframes. The following downlink is used as an example. When two operators can maintain synchronization, In the CCA detection of each idle period, it is judged as idle, so it is sent at the same time, causing the transmissions of the two operators to collide when there is a common service, as shown in FIG. The scenario in which the two operators require the shared spectrum is often a busy scenario. Since the deployment of the two base stations is not easy to plan, and multiple base stations are deployed intensively, two or more carriers will meet each other. This causes a lot of interference, which seriously affects performance. The synchronization scenarios of the two operators cannot be completely excluded for FDD (Frequency division duplex) and TDD (Time division duplex). In particular, the TDD mode is adopted for the licensed frequency band, and the TDD frame structure is also adopted for the unlicensed frequency band. Since the adjacent TDD base stations are deployed by different operators and must be strictly synchronized, uplink and downlink crosstalk may occur. The current agreement of LAA requires that the secondary carrier of the unlicensed band must be synchronized with the primary carrier of the licensed band. Therefore, if the adjacent base stations of different operators operating in the TDD band do not use the same secondary carrier in the unlicensed band. The TDD frame structure will inevitably lead to uplink and downlink crosstalk. If the same TDD frame structure is adopted, different operators will be completely synchronized in the unlicensed frequency band. When the FBE access mechanism is adopted, multi-operator collision will inevitably occur. When it is equivalent to the absence of LBT, both the base station and the terminal will have a lot of interference, especially at high loads. There is a large performance loss.

由此可知，现有技术无法避免多运营商同步时的资源碰撞问题，进一步由于不同运营商之间的资源碰撞，导致不同运营商会同时占用相同的资源发送各自信号，从而造成通信设备(基站或终端)间的严重干扰。Therefore, the prior art cannot avoid the resource collision problem when multiple operators synchronize, and further, due to resource collision between different operators, different operators simultaneously occupy the same resources to transmit respective signals, thereby causing communication devices (base stations or Serious interference between terminals).

发明内容Summary of the invention

本申请的目的是提供一种信道接入方法和装置，以解决多个运营商的基站或终端完全同步时引起的资源碰撞问题。The purpose of the present application is to provide a channel access method and apparatus to solve the resource collision problem caused when a base station or a terminal of multiple operators is completely synchronized.

本申请的目的是通过以下技术方案实现的：The purpose of this application is achieved by the following technical solutions:

一种信道接入方法，包括：A channel access method includes:

通信设备确定当前的CCA检测位置；The communication device determines a current CCA detection location;

所述通信设备在所述CCA检测位置进行CCA检测，确定当前信道空闲时，在当前信道上发送信号，以接入当前信道。The communication device performs CCA detection at the CCA detection location, and determines that when the current channel is idle, a signal is sent on the current channel to access the current channel.

这样，通过动态产生CCA检测位置的方式，有效避免了各个运营商的通信设备在同步状态下占用相同时频资源，从而大大降低了资源碰撞情况的发生，进而有效避免了通信设备间的信号干扰，同时保证各个运营商的通信设备接入信道的公平性，提升了通信设备的工作性能。In this way, by dynamically generating the CCA detection location, the communication devices of each operator are effectively occupied in the synchronous state to occupy the same time-frequency resources, thereby greatly reducing the occurrence of resource collisions, thereby effectively avoiding signal interference between communication devices. At the same time, the fairness of access channels of communication devices of various operators is ensured, and the working performance of the communication devices is improved.

可选的，所述信号用于指示所述通信设备已占用所述空闲信道，且所述信号为任意类型的信号。Optionally, the signal is used to indicate that the communication device has occupied the idle channel, and the signal is any type of signal.

可选的，通信设备确定当前的CCA检测位置，具体包括：Optionally, the communications device determines the current CCA detection location, including:

通信设备获取预设规则，并基于该预设规则获取指定的CCA检测位置作为当前的CCA检测位置；或者，The communication device acquires a preset rule, and acquires a specified CCA detection location as the current CCA detection location based on the preset rule; or

通信设备获取预设的CCA检测范围，获取预设规则，以及基于所述预设规则从指定的CCA检测范围中确定当前的CCA检测位置。The communication device acquires a preset CCA detection range, acquires a preset rule, and determines a current CCA detection position from the specified CCA detection range based on the preset rule.

通信设备将在IDLE时段中随机挑选的时间位置，作为当前的CCA检测位置；或者，The communication device will randomly select the time position in the IDLE period as the current CCA detection location; or,

通信设备将在IDLE时段中指定时间范围内随机挑选的时间位置，作为当前的CCA检测位置；或者，The communication device will randomly select a time position within a specified time range in the IDLE period as the current CCA detection position; or,

通信设备在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置。The communication device randomly selects any one of the CCA detection positions in the preset CCA detection position set as the current CCA detection position.

可选的，通信设备在IDLE时段中随机挑选时间位置，或者，通信设备在IDLE时段中指定时间范围内随机挑选时间位置，包括：Optionally, the communication device randomly selects the time position in the IDLE period, or the communication device is in the IDLE period Randomly pick time locations within the specified time range, including:

所述通信设备根据高层指令，在IDLE时段中或者在IDLE时段中指定时间范围内，确定高层随机挑选的时间位置；或者，Determining, by the high-level instruction, the time position of the high-level random selection in the IDLE period or in the specified time range in the IDLE period according to the high-level instruction; or

所述通信设备基于预设规则，在IDLE时段中或者在IDLE时段中指定时间范围内，挑选时间位置，其中，所述预设规则是基于运营商间协议随机产生的；或者，The communication device selects a time position in the IDLE period or in a specified time range in the IDLE period based on a preset rule, wherein the preset rule is randomly generated based on an inter-operator protocol; or

所述通信设备采用默认随机函数，基于指定标识信息，在IDLE时段中或者在IDLE时段中指定时间范围内，随机挑选时间位置。The communication device uses a default random function to randomly select a time position in the IDLE period or within a specified time range in the IDLE period based on the specified identification information.

可选的，所述指定标识信息至少包括：Optionally, the specified identifier information includes at least:

所述通信设备的设备标识、所述通信设备归属的小区的标识、以及所述通信设备归属的运营商的标识中的一种或任意组合。One or any combination of the device identifier of the communication device, the identity of the cell to which the communication device belongs, and the identity of the operator to which the communication device belongs.

可选的，通信设备在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置，具体包括：Optionally, the communication device randomly selects any CCA detection location in the preset CCA detection location set, as the current CCA detection location, specifically:

所述通信设备根据高层指令，在预设的CCA检测位置集合中，确定高层随机挑选的一个CCA检测位置；或者，The communication device determines, according to a high-level instruction, a CCA detection location randomly selected by the upper layer in the preset CCA detection location set; or

所述通信设备基于预设规则，在预设的CCA检测位置集合中，挑选一个CCA检测位置，其中，所述预设规则是基于运营商间协议随机产生的；或者，The communication device selects a CCA detection location in a preset CCA detection location set based on a preset rule, where the preset rule is randomly generated based on an inter-operator protocol; or

所述通信设备采用默认随机函数，基于指定标识信息，在预设的CCA检测位置集合中，随机挑选一个CCA检测位置。The communication device uses a default random function to randomly select a CCA detection location in the preset CCA detection location set based on the specified identification information.

可选的，进一步包括：Optionally, further comprising:

确定当前信道不空闲时，在当前固定帧周期内不发送任何信号，并停止CAA检测，所述固定帧周期包括数据传输时长和IDLE时长；When it is determined that the current channel is not idle, no signal is sent during the current fixed frame period, and the CAA detection is stopped, where the fixed frame period includes the data transmission duration and the IDLE duration;

在下一个固定帧周期到达时，继续确定当前最新的CCA检测位置，以及在所述最新的CCA检测位置进行CCA检测，并在确定当前信道空闲时，在当前信道上发送信号，以接入当前信道。When the next fixed frame period arrives, the current latest CCA detection position is continuously determined, and CCA detection is performed at the latest CCA detection position, and when it is determined that the current channel is idle, a signal is transmitted on the current channel to access the current channel. .

可选的，所述通信设备为基站或终端。Optionally, the communication device is a base station or a terminal.

一种信道接入装置，包括：A channel access device includes:

确定单元，用于确定当前的CCA检测位置；a determining unit for determining a current CCA detection position;

发送单元，用于在所述CCA检测位置进行CCA检测，确定当前信道空闲时，在当前信道上发送信号，以接入空闲信道。And a sending unit, configured to perform CCA detection at the CCA detection location, and determine that when the current channel is idle, send a signal on the current channel to access the idle channel.

这样，通过动态产生CCA检测位置的方式，有效避免了各个运营商的通信设备在同步状态下占用相同时频资源，从而大大降低了资源碰撞情况的发生，进而有效避免了通信设备间的信号干扰，同时保证各个运营商的通信设备接入信道的公平性，提升了通信设备的工作性能。In this way, by dynamically generating the CCA detection location, the communication devices of each operator are effectively occupied in the synchronous state to occupy the same time-frequency resources, thereby greatly reducing the occurrence of resource collisions, thereby effectively avoiding communication. Signal interference between devices, while ensuring the fairness of access channels of communication devices of various operators, and improving the performance of communication devices.

可选的，所述发送单元发送的所述信号用于指示所述装置已占用所述空闲信道，且所述信号为任意类型的信号。Optionally, the signal sent by the sending unit is used to indicate that the device has occupied the idle channel, and the signal is any type of signal.

可选的，确定当前的CCA检测位置时，所述确定单元具体用于：Optionally, when determining a current CCA detection location, the determining unit is specifically configured to:

获取预设规则，并基于该预设规则获取指定的CCA检测位置作为当前的CCA检测位置；或者，Obtaining a preset rule, and acquiring a specified CCA detection location as the current CCA detection location based on the preset rule; or

获取预设的CCA检测范围，获取预设规则，以及基于所述预设规则从指定的CCA检测范围中确定当前的CCA检测位置。Acquiring a preset CCA detection range, acquiring a preset rule, and determining a current CCA detection position from the specified CCA detection range based on the preset rule.

将在IDLE时段中随机挑选的时间位置，作为当前的CCA检测位置；或者，The time position randomly selected in the IDLE period as the current CCA detection position; or,

将在IDLE时段中指定时间范围内随机挑选的时间位置，作为当前的CCA检测位置；或者，The time position randomly selected within the specified time range in the IDLE period as the current CCA detection position; or,

在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置。Any one of the CCA detection positions is randomly selected in the preset CCA detection position set as the current CCA detection position.

可选的，在IDLE时段中随机挑选时间位置时，或者，在IDLE时段中指定时间范围内随机挑选时间位置时，所述确定单元具体用于：Optionally, when the time position is randomly selected in the IDLE period, or when the time position is randomly selected within the specified time range in the IDLE period, the determining unit is specifically configured to:

根据高层指令，在IDLE时段中或者在IDLE时段中指定时间范围内，确定高层随机挑选的时间位置；或者，Determining the time position of the high-level random selection in the IDLE period or within the specified time range in the IDLE period according to the high-level instruction; or,

基于预设规则，在IDLE时段中或者在IDLE时段中指定时间范围内，挑选时间位置，其中，所述预设规则是基于运营商间协议随机产生的；或者，Selecting a time position in the IDLE period or in a specified time range in the IDLE period based on a preset rule, wherein the preset rule is randomly generated based on an inter-operator protocol; or

采用默认随机函数，基于指定标识信息，在IDLE时段中或者在IDLE时段中指定时间范围内，随机挑选时间位置。The default random function is used to randomly select the time position within the IDLE period or within the specified time range in the IDLE period based on the specified identification information.

可选的，所述确定单元获取的指定标识信息至少包括：Optionally, the specified identifier information acquired by the determining unit includes at least:

所述装置的设备标识、所述装置归属的小区的标识、以及所述装置归属的运营商的标识中的一种或任意组合。One or any combination of the device identification of the device, the identity of the cell to which the device belongs, and the identity of the operator to which the device belongs.

可选的，在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置时，所述确定单元具体用于：Optionally, when any one of the preset CCA detection location sets is randomly selected, as the current CCA detection location, the determining unit is specifically configured to:

根据高层指令，在预设的CCA检测位置集合中，确定高层随机挑选的一个CCA检测位置；或者，According to the high-level instruction, in the preset CCA detection location set, determine a CCA detection location randomly selected by the upper layer; or

基于预设规则，在预设的CCA检测位置集合中，挑选一个CCA检测位置，其中，所述预设规则是基于运营商间协议随机产生的；或者，Selecting a CCA detection location in the preset CCA detection location set based on a preset rule, where The preset rules are randomly generated based on inter-operator agreements; or,

采用默认随机函数，基于指定标识信息，在预设的CCA检测位置集合中，随机挑选一个CCA检测位置。A default random function is used to randomly select a CCA detection location in the preset CCA detection location set based on the specified identification information.

可选的，所述发送单元进一步用于：Optionally, the sending unit is further configured to:

可选的，所述装置为基站或终端。Optionally, the device is a base station or a terminal.

一种网络侧设备，包括：A network side device, including:

处理器，用于读取存储器中的程序，执行下列过程：确定当前的CCA检测位置；在所述CCA检测位置进行CCA检测，确定当前信道空闲时，通过收发机在当前信道上发送信号，以接入当前信道；a processor, configured to read a program in the memory, perform the following process: determining a current CCA detection location; performing CCA detection at the CCA detection location, determining that the current channel is idle, transmitting a signal on the current channel through the transceiver, Access the current channel;

收发机，用于在处理器的控制下接收和发送数据。A transceiver for receiving and transmitting data under the control of a processor.

可选的，通过收发机发送的所述信号用于指示所述网络侧设备已占用所述空闲信道，且所述信号为任意类型的信号。Optionally, the signal sent by the transceiver is used to indicate that the network side device has occupied the idle channel, and the signal is any type of signal.

可选的，确定当前的CCA检测位置时，处理器具体用于：Optionally, when determining the current CCA detection location, the processor is specifically configured to:

获取预设规则，并基于所述预设规则获取指定的CCA检测位置作为当前的CCA检测位置；或者，Obtaining a preset rule, and acquiring a specified CCA detection location as the current CCA detection location based on the preset rule; or

在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA 检测位置。Randomly select any CCA detection position in the preset CCA detection position set as the current CCA Detection location.

可选的，在IDLE时段中随机挑选时间位置时，或者，在IDLE时段中指定时间范围内随机挑选时间位置时，处理器具体用于：Optionally, when the time position is randomly selected in the IDLE period, or when the time position is randomly selected within the specified time range in the IDLE period, the processor is specifically configured to:

可选的，上述指定标识信息至少包括：Optionally, the foregoing specified identifier information includes at least:

所述网络侧设备的设备标识、所述网络侧设备归属的小区的标识、以及所述网络侧设备归属的运营商的标识中的一种或任意组合。One or any combination of the device identifier of the network side device, the identifier of the cell to which the network side device belongs, and the identifier of the operator to which the network side device belongs.

可选的，在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置时，处理器具体用于：Optionally, any one of the preset CCA detection location sets is randomly selected as the current CCA detection location, and the processor is specifically configured to:

基于预设规则，在预设的CCA检测位置集合中，挑选一个CCA检测位置，其中，所述预设规则是基于运营商间协议随机产生的；或者，Selecting, according to a preset rule, a CCA detection location in a preset CCA detection location set, where the preset rule is randomly generated based on an inter-operator protocol; or

可选的，处理器进一步用于：Optionally, the processor is further configured to:

一种用户设备，包括：A user equipment comprising:

处理器，用于读取存储器中的程序，执行下列过程：确定当前的空闲信道评估CCA检测位置；在所述CCA检测位置进行CCA检测，确定当前信道空闲时，通过收发机在当前信道上发送信号，以接入当前信道；a processor, configured to read a program in the memory, to perform the following process: determining a current idle channel evaluation CCA detection location; performing CCA detection at the CCA detection location, determining that the current channel is idle, transmitting on the current channel through the transceiver Signal to access the current channel;

收发机，用于在处理器的控制下接收和发送数据。 A transceiver for receiving and transmitting data under the control of a processor.

根据高层指令，在预设的CCA检测位置集合中，确定高层随机挑选的一个CCA检测位置；或者，According to the high-level instruction, in the preset CCA detection location set, determine a CCA detection randomly selected by the upper layer. Location; or,

附图说明DRAWINGS

图1为基于LBT的FBE信道接入机制示意图；FIG. 1 is a schematic diagram of an LBT-based FBE channel access mechanism;

图2为基于LBT的LBE信道接入机制示意图；2 is a schematic diagram of an LBT-based LBE channel access mechanism;

图3为两个运营商同步时的LBE信道接入示意图；FIG. 3 is a schematic diagram of LBE channel access when two operators synchronize;

图4为本申请实施例信道接入方法流程示意图；4 is a schematic flowchart of a channel access method according to an embodiment of the present application;

图5A和图5B为本申请实施例中多运营商同步场景下第一种信道接入示意图；5A and FIG. 5B are schematic diagrams showing the first type of channel access in a multi-operator synchronization scenario according to an embodiment of the present application;

图6A和图6B为本申请实施例中多运营商同步场景下第二种信道接入示意图；6A and FIG. 6B are schematic diagrams showing a second channel access in a multi-operator synchronization scenario according to an embodiment of the present application;

图7、图8和图9为本申请实施例中信道接入装置结构示意图。FIG. 7 , FIG. 8 and FIG. 9 are schematic diagrams showing the structure of a channel access device according to an embodiment of the present application.

具体实施方式detailed description

下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，并不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

参阅图4所示，本申请实施例一中提出一种基于CCA机制避免多个运营商的基站或者终端互相碰撞的信道接入方法，具体流程如下：As shown in FIG. 4, in the first embodiment of the present application, a channel access method for avoiding collision of base stations or terminals of multiple operators based on a CCA mechanism is proposed. The specific process is as follows:

步骤400：通信设备确定当前的CCA检测位置。Step 400: The communication device determines a current CCA detection location.

其中，步骤400中的通信设备为基站或终端，且一般情况下在确定当前存在待传输数据时，才会确定当前的CCA检测位置。The communication device in step 400 is a base station or a terminal, and generally determines that there are currently a number of to-be-transmitted According to the time, the current CCA detection position will be determined.

在执行步骤400时，通信设备采用预设方式来确定当前的CCA检测位置，具体可以执行但不限于以下两种方式：When the step 400 is performed, the communication device determines the current CCA detection location by using a preset manner, which may be performed by, but not limited to, the following two methods:

第一种方式为：通信设备获取预设规则，并基于该预设规则获取指定的CCA检测位置作为当前的CCA检测位置；The first mode is: the communication device acquires a preset rule, and acquires the specified CCA detection location as the current CCA detection location according to the preset rule;

或者，or,

需要说明的是，这里的预设规则可以为：提前指定不同运营商各自使用的CCA检测位置或者CCA检测位置范围。还可以为：不同运营商的CCA检测位置的更换原则，如，包括提前约定更改CCA检测位置的时间周期或者时间周期的范围。It should be noted that the preset rule herein may be: designating a CCA detection location or a CCA detection location range used by different operators in advance. It can also be: the replacement principle of the CCA detection position of different operators, for example, including the time period or the time period of the change of the CCA detection position in advance.

第二种方式为：通信设备将在IDLE时段中随机挑选时间位置，作为当前的CCA检测位置。The second way is that the communication device will randomly pick the time position in the IDLE period as the current CCA detection position.

或者，or,

通信设备将在IDLE时段中指定时间范围内随机挑选的时间位置，作为当前的CCA检测位置。The communication device will randomly select the time position within the specified time range in the IDLE period as the current CCA detection position.

或者，or,

在上述第二种方式下，通信设备在IDLE时段中随机挑选时间位置，或者，通信设备在IDLE时段中指定时间范围内随机挑选时间位置，具体包括但不限于以下方式：In the second mode, the communication device randomly selects the time position in the IDLE period, or the communication device randomly selects the time position within the specified time range in the IDLE period, including but not limited to the following manners:

方式一：通信设备根据高层指令，在IDLE时段中或者在IDLE时段中指定时间范围内，确定高层随机挑选的时间位置。Manner 1: The communication device determines the time position of the high-level random selection in the IDLE period or within the specified time range in the IDLE period according to the high-level instruction.

例如，假设该通信设备为终端，此时，终端根据自身的所属运营商来获取CCA检测位置，该CCA检测位置是通过运营商挑选随机位置并通知给该终端的。For example, if the communication device is a terminal, the terminal acquires a CCA detection location according to its own operator, and the CCA detection location selects a random location by the operator and notifies the terminal.

方式二：该通信设备基于预设规则，在IDLE时段中或者在IDLE时段中指定时间范围内，挑选时间位置，其中，该预设规则是基于运营商间协议随机产生的。Manner 2: The communication device selects a time position in the IDLE period or within a specified time range in the IDLE period based on a preset rule, wherein the preset rule is randomly generated based on an inter-operator protocol.

例如，假设通信设备为终端，此时，不同通信设备所属的运营商，预先约定好各自运营商的CCA检测位置，通信设备在所属运营商预先约定的CCA检测位置中选择自身的CCA检测位置，如，终端1所属的运营商为A，终端2所属的运营商为B，A与B通过预先协议商定好各自占用的两个CCA检测位置，终端1(所属运营商A)根据实际情形，在运营商A预先约定的CCA检测位置中，随机选择当前的CCA检测位置。For example, it is assumed that the communication device is a terminal. At this time, the operator to which the different communication device belongs pre-approves the CCA detection location of the respective operator, and the communication device selects its own CCA detection location among the CCA detection positions previously reserved by the operator. For example, the operator to which the terminal 1 belongs is A, and the operator to which the terminal 2 belongs is B. A and B agree on the two CCA detection positions respectively occupied by the pre-protocol. The terminal 1 (the carrier A) belongs to the actual situation. Among the CCA detection locations pre-agreed by the operator A, the current CCA detection location is randomly selected.

方式三：通信设备采用默认随机函数，基于指定标识信息，在IDLE时段中或者在IDLE时段中指定时间范围内，随机挑选时间位置，其中该指定标识信息至少包括：该通信设备的设备标识、该通信设备归属的小区的标识、以及该通信设备归属的运营商的标识中的一种或任意组合。Manner 3: The communication device uses a default random function to randomly select a time position in the IDLE period or in a specified time range in the IDLE period based on the specified identification information, where the specified identification information includes at least: a device identifier of the communication device, One or any combination of the identity of the cell to which the communication device belongs and the identity of the operator to which the communication device belongs.

例如，假设通信设备为终端，此时，终端基于自身设备标识，所属小区标识以及所属运营商标识中的一种或任意组合，采用默认的随机函数，生成一指示信息，该指示信息用于指示一CCA检测位置作为终端当前的CCA检测位置。For example, it is assumed that the communication device is a terminal. At this time, the terminal generates an indication information by using a default random function based on one or any combination of the identity of the device, the identity of the cell, and the identity of the associated carrier. A CCA detection location is used as the current CCA detection location of the terminal.

具体的，上述第二种方式下，，通信设备在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置，具体包括但不限于以下三种方式：Specifically, in the foregoing second mode, the communications device randomly selects any CCA detection location in the preset CCA detection location set, as the current CCA detection location, including but not limited to the following three modes:

方式一：通信设备根据高层指令，在预设的CCA检测位置集合中，确定高层随机挑选的一个CCA检测位置。Manner 1: The communication device determines, according to the high-level instruction, a CCA detection location randomly selected by the upper layer in the preset CCA detection location set.

方式二：该通信设备基于预设规则，在预设的CCA检测位置集合中，挑选一个CCA检测位置，其中，该预设规则是基于运营商间协议随机产生的。Manner 2: The communication device selects a CCA detection location in a preset CCA detection location set based on a preset rule, where the preset rule is randomly generated based on an inter-operator protocol.

方式三为：该通信设备采用默认随机函数，基于指定标识信息，在预设的CCA检测位置集合中，随机挑选一个CCA检测位置。The third mode is: the communication device adopts a default random function, and randomly selects a CCA detection location in the preset CCA detection location set based on the specified identification information.

例如，假设通信设备为基站，此时，不同运营商各自为其所管辖的基站预先约定一个CCA检测位置集合，以一个运营商为例，较佳的，该运营商可以对相应的CCA检测位置集合内的元素进行编号，进一步的，该运营商管辖的基站可以按照约定规则针对相应的CCA检测位置集合生成一个指示信息，或者，基于运营商标识和自身设备标识，利用一个相关函数针对相应的CCA检测位置集合生成一个指示信息，接着，基于生成的指示信息在相应的CAA检测位置集合中挑选出对应的CCA检测位置，具体挑选方式不唯一；其中，指示信息可以是CCA检测位置集合中各个元素的位置信息，也可以是CCA检测位置集合中各个元素的编号。For example, assuming that the communication device is a base station, at this time, different operators each pre-approve a set of CCA detection locations for the base station under their jurisdiction, taking an operator as an example. Preferably, the operator can detect the location of the corresponding CCA. The elements in the set are numbered. Further, the base station under the jurisdiction of the operator may generate an indication information for the corresponding CCA detection location set according to the agreed rule, or use a correlation function for the corresponding based on the operator identifier and the own device identifier. The CCA detection location set generates an indication information, and then selects a corresponding CCA detection location in the corresponding CAA detection location set based on the generated indication information, where the specific selection manner is not unique; wherein the indication information may be each of the CCA detection location set The location information of the element may also be the number of each element in the CCA detection location set.

又例如，假设通信设备为基站，此时，所有运营商为其所管辖的所有基站共同预先约定一个CCA检测位置集合，较佳的，各个运营商共同对该CCA检测位置集合内的元素进行编号，进一步的，基站可以按照约定规则针对该CCA检测位置集合生成一个指示信息，或者，基于运营商标识和自身设备标识，利用一个相关函数，针对该CCA检测位置集合生成一个指示信息，接着，基于生成的指示信息在在该CAA检测位置集合中挑选出对应的CCA检测位置，具体挑选方式不唯一；其中，指示信息可以是CCA检测位置集合中各个元素的位置信息，也可以是CCA检测位置集合中各个元素的编号。 For example, if the communication device is a base station, all operators jointly pre-approve a set of CCA detection locations for all the base stations under their jurisdiction. Preferably, each operator jointly numbers the elements in the CCA detection location set. Further, the base station may generate an indication information for the CCA detection location set according to the agreed rule, or generate an indication information for the CCA detection location set by using a correlation function based on the operator identifier and the own device identifier, and then, based on the The generated indication information selects a corresponding CCA detection location in the set of CAA detection locations, and the specific selection manner is not unique; wherein the indication information may be location information of each element in the CCA detection location set, or may be a CCA detection location set. The number of each element in it.

实际应用中，在同一个固定帧周期中，多个信道可能绑定有相同的CCA检测位置，这样，同一运营商的多个基站或终端可以在同一时间进行CCA检测，并在同一时间接入信道，从而有效提高信号增益。In practical applications, multiple channels may be bound to the same CCA detection location in the same fixed frame period, so that multiple base stations or terminals of the same carrier can perform CCA detection at the same time and access at the same time. Channel, which effectively increases the signal gain.

步骤401：通信设备在CCA检测位置进行CCA检测，确定当前信道空闲时，在当前信道上发送信号，以接入当前信道。Step 401: The communication device performs CCA detection at the CCA detection location, and determines that when the current channel is idle, the signal is sent on the current channel to access the current channel.

其中，步骤401中的信号用于指示该通信设备已占用该空闲信道，且该信号为任意类型的信号。The signal in step 401 is used to indicate that the communication device has occupied the idle channel, and the signal is any type of signal.

例如，该信号可以为专用信号，也可以为设计有其他功能的信号，例如可以传输其他有用信息。For example, the signal can be a dedicated signal or a signal designed with other functions, for example, other useful information can be transmitted.

进一步的，通信设备确定当前信道不空闲时，在当前固定帧周期内不发送任何信号，并停止CAA检测，该固定帧周期包括数据传输时长和IDLE时长；在下一个固定帧周期到达时，继续确定当前最新的CCA检测位置，以及在该最新的CCA检测位置进行CCA检测，并在确定当前信道空闲时，在当前信道上发送信号，以接入当前信道。Further, when the communication device determines that the current channel is not idle, it does not send any signal during the current fixed frame period, and stops CAA detection, where the fixed frame period includes the data transmission duration and the IDLE duration; when the next fixed frame period arrives, the determination continues. The current latest CCA detection location, and CCA detection at the latest CCA detection location, and when determining that the current channel is idle, transmitting a signal on the current channel to access the current channel.

在现有技术下，采用FBE信道接入机制的通信设备(如，基站或者终端)，只能在位于IDLE时段内靠后的CCA检测位置进行CCA检测，从而导致多个同步的运营商的通信设备在相同资源位置发生相碰，而通过采用本申请实施例中介绍的信道接入方法，使得各个通信设备选定的CCA测量位置在IDLE内是不固定的，需要动态的产生，这样，能够避免各个通信设备完全同步时，因占用相同的引起的信号干扰。In the prior art, a communication device (such as a base station or a terminal) adopting the FBE channel access mechanism can perform CCA detection only at a CCA detection location located in the IDLE period, thereby causing communication of multiple synchronized operators. The devices collide at the same resource location, and the CCA measurement location selected by each communication device is not fixed in the IDLE by using the channel access method introduced in the embodiment of the present application, and needs to be generated dynamically, so that Avoid the same signal interference caused by the use of the same communication device when it is completely synchronized.

下面通过两个具体的应用场景对上述实施例作出进一步详细说明。The above embodiments are further described in detail below through two specific application scenarios.

在第一种场景下：每个运营商的通信设备(如，基站或者终端)在IDLE时段内选定当前的CCA检测位置，可以是IDLE时段中任意位置，也可以是IDLE时段中指定范围内(如，200us－400us)的任意位置；其中，具体的，该CCA检测位置可以是运营商自身随机产生后通过高层指令通知通信设备的，也可以是由通信设备基于预先约定的规则产生，也可以是通信设备基于自身的设备ID(如，基站ID或UE ID)，运营商ID、自身归属的小区的Cell ID中的一种或任意组合，采用与运营商或通信设备相关的一个随机函数产生的，还可以是各通信设备的运行商之间按照预先协商好的规则或按照自身的规则，协调指定各自的CAA检测位置或检测范围，当然，并不排除其他的产生方法，此处仅为举例，将不再赘述。In the first scenario: each operator's communication device (eg, base station or terminal) selects the current CCA detection location within the IDLE period, which may be any position in the IDLE period, or may be within the specified range of the IDLE period. Any position (for example, 200us-400us); wherein, specifically, the CCA detection location may be notified by the operator after the random generation by the operator, or may be generated by the communication device based on a pre-agreed rule. It may be that the communication device adopts a random function related to the operator or the communication device based on one or any combination of the device ID (eg, base station ID or UE ID), the operator ID, and the cell ID of the cell to which the user belongs. It may also be that the operators of the communication devices coordinately designate their respective CAA detection positions or detection ranges according to pre-negotiated rules or according to their own rules. Of course, other generation methods are not excluded. For the sake of example, it will not be described again.

例如，以基站为例，参阅图5A所示，每个基站在IDLE时段中的任意位置选定当前的CCA检测位置，或者，每个基站在IDLE时段中某个约定的时间范围内选定当前的CCA检测位置。 For example, taking a base station as an example, referring to FIG. 5A, each base station selects a current CCA detection position at any position in the IDLE period, or each base station selects a current time within an agreed time range in the IDLE period. The CCA detects the location.

接着，各个基站分别在自身对应的CCA检测位置进行CCA检测。先检测到当前信道空闲的基站，马上发送信号，通过该信号占住当前信道；其中，基站发送的信号可以是任意类型的信号，不排除该信号具有除占用当前信道以外的其他多种功能，如，传输有用数据或信息等等。Then, each base station performs CCA detection at its own corresponding CCA detection position. The base station that is currently idle is detected, and the signal is immediately sent, and the current channel is occupied by the signal; wherein the signal sent by the base station can be any type of signal, and the signal does not have a plurality of functions other than occupying the current channel. For example, transferring useful data or information, and so on.

然后，占用到当前信道的基站，随后在当前信道上进行数据传输；而其他基站在各自对应的CCA检测位置进行CCA检测后，检测到当前信道已经被占用后，在固定帧周期剩余时间内不发送任何信号，也停止CCA检测，并等待下一个固定帧周期到达后，重新在IDLE时段内选定CCA检测位置后再进行CCA检测。Then, the base station occupies the current channel, and then performs data transmission on the current channel; and the other base stations do not perform CCA detection at the respective corresponding CCA detection positions, and after detecting that the current channel has been occupied, the remaining time of the fixed frame period is not Send any signal, stop CCA detection, and wait for the next fixed frame period to arrive, then re-select the CCA detection position in the IDLE period before performing CCA detection.

在下一个固定帧周期到达后，各个基站再次在IDLE时段内各自对应的CCA检测位置进行CCA检测，即检测当前信道的状态是“忙”还是“闲”，最先检测到当前信道空闲的基站立刻发送信号占用住当前信道，而未检测到当前信道空闲的基站则不发送任何信号。After the next fixed frame period arrives, each base station performs CCA detection again in the corresponding CCA detection position in the IDLE period, that is, detects whether the current channel status is "busy" or "free", and firstly detects the current channel idle base station immediately. The transmitting signal occupies the current channel, and the base station that does not detect the current channel is idle does not transmit any signal.

又例如，以终端为例，参阅图5B所示，每个终端由所属的运营商在IDLE时段内的任意位置或者IDLE时段内某个约定的范围内生成当前的CCA检测位置。For another example, taking the terminal as an example, referring to FIG. 5B, each terminal generates a current CCA detection location by an associated operator in an arbitrary position within the IDLE period or within an agreed range within the IDLE period.

在实施中，属于不同运营商的终端其CCA位置是通过不同运营商的各个基站来配置的，每个基站独立为接入的终端生成当前的CCA检测位置。比如运营商中的基站A为接入基站A的所有终端生成公共的CCA检测位置。不同的基站之间生成的CCA检测位置可以相同，也可以不同。In an implementation, terminals belonging to different operators have their CCA locations configured by respective base stations of different operators, and each base station independently generates a current CCA detection location for the accessed terminal. For example, the base station A in the operator generates a common CCA detection location for all terminals accessing the base station A. The CCA detection locations generated between different base stations may be the same or different.

接着，各个终端分别在自身对应的CCA检测位置进行CCA检测。先检测到当前信道空闲的运营商终端，马上发送信号，通过该信号占住当前信道，不排除该信号可以设计的有很多其他功能，如传输有用数据或信息等等。Then, each terminal performs CCA detection at its own corresponding CCA detection position. The operator terminal that is currently idle is detected, and the signal is immediately sent, and the current channel is occupied by the signal. It is not excluded that the signal can be designed with many other functions, such as transmitting useful data or information.

然后，占用到当前信道的终端，随后在当前信道上进行数据传输；而其他终端在各自对应的CCA检测位置进行CCA检测后，检测到当前信道已经被占用后，在固定帧周期剩余时间内不发送任何信号，也停止CCA检测，并等待下一个固定帧周期到达后，重新在IDLE时段内选定CCA检测位置后再进行CCA检测。Then, the terminal occupies the current channel, and then performs data transmission on the current channel; while the other terminals perform CCA detection at the respective corresponding CCA detection positions, after detecting that the current channel has been occupied, the remaining time of the fixed frame period is not Send any signal, stop CCA detection, and wait for the next fixed frame period to arrive, then re-select the CCA detection position in the IDLE period before performing CCA detection.

在下一个固定帧周期到达后，各个终端再次在IDLE时段内各自对应的CCA检测位置进行CCA检测，即检测各个信道的状态是“忙”还是“闲”，最先检测到当前信道空闲的终端立刻发送信号占用住当前信道，而未检测当前信道空闲的基站则不发送任何信号。After the next fixed frame period arrives, each terminal performs CCA detection again in the corresponding CCA detection position in the IDLE period, that is, whether the status of each channel is "busy" or "idle", and the terminal that is currently idle is detected first. The transmitting signal occupies the current channel, and the base station that does not detect the current channel is idle does not transmit any signal.

在第二种场景下：在实际中有时为了便于通信设备(如，基站与终端)降低操作复杂度，需要对同步的运营商的通信设备预先约定一个CCA检测位置集合，较佳的，需要预先对该CCA检测位置集合内的元素其进行编号，具体可以包括但不限于以下方式：In the second scenario, in practice, in order to facilitate the communication complexity of the communication device (for example, the base station and the terminal), it is necessary to pre-agreed a CCA detection location set for the synchronous communication device of the operator, preferably, in advance The elements in the set of CCA detection locations are numbered, and may specifically include, but are not limited to, the following manners:

例如：不同运营商各自为其所管辖的通信设备分别产生一个公共的CCA检测位置集合，并各自对相应的CCA检测集合中的元素进行编号。For example, different operators each generate a common set of CCA detection locations for the communication devices they govern. And, each numbering the elements in the corresponding CCA detection set.

又例如：不同运营商共同为其所属的所有通信设备共同产生一个公共的CCA检测位置集合，并统一对该CCA检测集合中的元素进行编号。For another example, different operators jointly generate a common set of CCA detection locations for all communication devices to which they belong, and uniformly number the elements in the CCA detection set.

其中，较佳的，通信设备从一CCA检测位置集合中选定当前的CCA检测位置，可以是运营商自身随机确定CCA检测位置后通过高层指令通知通信设备的；也可以是通信设备基于预先约定的规则从CCA检测位置集合中选定的；还可以是通信设备基于自身的设备ID(如，基站ID或UE ID)，运营商ID、自身归属的小区的Cell ID中的一种或任意组合，采用与运营商或通信设备相关的一个随机函数产生的；当然，并不排除其他的产生方法，此处仅为举例，将不再赘述。Preferably, the communication device selects the current CCA detection location from a set of CCA detection locations, which may be that the operator randomly determines the CCA detection location and then notifies the communication device by using a high-level instruction; or the communication device is based on a pre-agreed The rule is selected from the set of CCA detection locations; it may also be one or any combination of the communication device based on its own device ID (eg, base station ID or UE ID), the carrier ID, and the cell ID of the cell to which it belongs. It is generated by a random function related to the operator or the communication device; of course, other generation methods are not excluded, and are merely examples and will not be described again.

例如，以基站为例，参阅图6A所示，每个基站在可用的预先约定的CCA周期集合中选择自身对应的当前的CCA检测位置。For example, taking a base station as an example, referring to FIG. 6A, each base station selects its own current CCA detection location in a set of available pre-agreed CCA cycles.

接着，各个基站分别在自身对应的当前的CCA检测位置进行CCA检测。先检测到当前信道空闲的基站，马上发送信号，通过该信号占住检测到的当前信道；其中，基站发送的信号可以是任意类型的信号，不排除该信号具有除占用空闲信道以外的其他多种功能，如，传输有用数据或信息等等。Then, each base station performs CCA detection at its current current CCA detection position. The base station that is currently idle is detected, and the signal is immediately sent, and the detected current channel is occupied by the signal; wherein the signal sent by the base station can be any type of signal, and the signal is not excluded from having other channels than occupying the idle channel. Functions such as transferring useful data or information and so on.

例如，以终端为例，参阅图6B所示，每个终端在可用的预先约定的CCA周期集合中，选择自己对映的CCA检测位置。For example, taking the terminal as an example, referring to FIG. 6B, each terminal selects its own mapped CCA detection location in the available pre-agreed CCA cycle set.

然后，占用到当前信道的终端，随后在当前信道上进行数据传输；而其他终端在各自对应的CCA检测位置进行CCA检测后，检测到当前信道已经被占用后，在固定帧周期剩余时间内不发送任何信号，也停止CCA检测，并等待下一个固定帧周期到达后，重新在IDLE时段内选定CCA检测位置后再进行CCA检测。 Then, the terminal occupies the current channel, and then performs data transmission on the current channel; while the other terminals perform CCA detection at the respective corresponding CCA detection positions, after detecting that the current channel has been occupied, the remaining time of the fixed frame period is not Send any signal, stop CCA detection, and wait for the next fixed frame period to arrive, then re-select the CCA detection position in the IDLE period before performing CCA detection.

在下一个固定帧周期到达后，各个终端再次在IDLE时段内各自对应的CCA检测位置进行CCA检测，即检测当前信道的状态是“忙”还是“闲”，最先检测到当前信道空闲的终端立刻发送信号占用住空闲信道，而未检测到当前信道空闲的终端则不发送任何信号。After the next fixed frame period arrives, each terminal performs CCA detection again in the corresponding CCA detection position in the IDLE period, that is, detects whether the current channel status is "busy" or "free", and first detects the current channel idle terminal immediately. The transmitted signal occupies the idle channel, and the terminal that does not detect the current channel is idle does not send any signal.

基于上述实施例，参阅图7所示，本申请实施例中提供一种信道接入装置装置，包括确定单元70和发送单元71，其中：Based on the foregoing embodiment, referring to FIG. 7, an embodiment of the present application provides a channel access device, including a determining unit 70 and a sending unit 71, where:

确定单元70，用于确定当前的CCA检测位置；a determining unit 70, configured to determine a current CCA detection location;

发送单元71，用于在该CCA检测位置进行CCA检测，确定当前信道空闲时，在当前信道上发送信号，以接入当前信道。The sending unit 71 is configured to perform CCA detection at the CCA detection location, and determine that when the current channel is idle, send a signal on the current channel to access the current channel.

可选的，该发送单元71发送的该信号用于指示该装置已占用该空闲信道，且该信号为任意类型的信号。Optionally, the signal sent by the sending unit 71 is used to indicate that the device has occupied the idle channel, and the signal is any type of signal.

可选的，确定当前的CCA检测位置时，该确定单元70具体用于：Optionally, when determining a current CCA detection location, the determining unit 70 is specifically configured to:

获取预设的CCA检测范围，获取预设规则，以及基于该预设规则从指定的CCA检测范围中确定当前的CCA检测位置。Obtain a preset CCA detection range, obtain a preset rule, and determine a current CCA detection position from the specified CCA detection range based on the preset rule.

可选的，在IDLE时段中随机挑选时间位置时，或者，在IDLE时段中指定时间范围内随机挑选时间位置时，该确定单元70具体用于：Optionally, when the time position is randomly selected in the IDLE period, or when the time position is randomly selected within the specified time range in the IDLE period, the determining unit 70 is specifically configured to:

基于预设规则，在IDLE时段中或者在IDLE时段中指定时间范围内，挑选时间位置，其中，该预设规则是基于运营商间协议随机产生的；或者，Selecting a time position based on a preset rule in the IDLE period or in a specified time range in the IDLE period, wherein the preset rule is randomly generated based on an inter-operator agreement; or

可选的，该确定单元70获取的指定标识信息至少包括：Optionally, the specified identifier information acquired by the determining unit 70 includes at least:

该装置的设备标识、该装置归属的小区的标识、以及该装置归属的运营商的标识中的一种或任意组合。The device identifier of the device, the identity of the cell to which the device belongs, and the identity of the operator to which the device belongs One or any combination.

可选的，在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置时，该确定单元70具体用于：Optionally, when any one of the preset CCA detection location sets is randomly selected, as the current CCA detection location, the determining unit 70 is specifically configured to:

基于预设规则，在预设的CCA检测位置集合中，挑选一个CCA检测位置，其中，该预设规则是基于运营商间协议随机产生的；或者，Selecting, according to a preset rule, a CCA detection location in a preset CCA detection location set, where the preset rule is randomly generated based on an inter-operator protocol; or

可选的，该发送单元71进一步用于：Optionally, the sending unit 71 is further configured to:

确定当前信道不空闲时，在当前固定帧周期内不发送任何信号，并停止CAA检测，该固定帧周期包括数据传输时长和IDLE时长；When it is determined that the current channel is not idle, no signal is sent during the current fixed frame period, and the CAA detection is stopped, and the fixed frame period includes the data transmission duration and the IDLE duration;

在下一个固定帧周期到达时，继续确定当前最新的CCA检测位置，以及在该最新的CCA检测位置进行CCA检测，并在确定当前信道空闲时，在当前信道上发送信号，以接入当前信道。When the next fixed frame period arrives, the current latest CCA detection position is continuously determined, and CCA detection is performed at the latest CCA detection position, and when it is determined that the current channel is idle, a signal is transmitted on the current channel to access the current channel.

可选的，该装置为基站或终端。Optionally, the device is a base station or a terminal.

参阅图8所示，本申请实施例中提供一种网络侧设备，包括：As shown in FIG. 8 , a network side device is provided in the embodiment of the present application, including:

处理器800，用于读取存储器820中的程序，执行下列过程：确定当前的空闲信道评估CCA检测位置；在该CCA检测位置进行CCA检测，确定当前信道空闲时，通过收发机810在当前信道上发送信号，以接入该当前信道；The processor 800 is configured to read a program in the memory 820, and perform the following process: determining a current idle channel evaluation CCA detection location; performing CCA detection at the CCA detection location to determine that the current channel is idle, and the current channel is through the transceiver 810. Sending a signal to access the current channel;

收发机810，用于在处理器800的控制下接收和发送数据。The transceiver 810 is configured to receive and transmit data under the control of the processor 800.

可选的，通过收发机810发送的信号用于指示该网络侧设备已占用该空闲信道，且该信号为任意类型的信号。Optionally, the signal sent by the transceiver 810 is used to indicate that the network side device has occupied the idle channel, and the signal is any type of signal.

可选的，确定当前的CCA检测位置时，处理器800具体用于：Optionally, when determining the current CCA detection location, the processor 800 is specifically configured to:

将在IDLE时段中指定时间范围内随机挑选的时间位置，作为当前的CCA检测位置；或者，The time position randomly selected within the specified time range in the IDLE period is taken as the current CCA detection position; or,

可选的，在IDLE时段中随机挑选时间位置时，或者，在IDLE时段中指定时间范围内随机挑选时间位置时，处理器800具体用于：Optionally, when the time position is randomly selected in the IDLE period, or when the time position is randomly selected within the specified time range in the IDLE period, the processor 800 is specifically configured to:

该网络侧设备的设备标识、该网络侧设备归属的小区的标识、以及该网络侧设备归属的运营商的标识中的一种或任意组合。One or any combination of the device identifier of the network side device, the identifier of the cell to which the network side device belongs, and the identifier of the operator to which the network side device belongs.

可选的，在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置时，处理器800具体用于：Optionally, when any one of the preset CCA detection location sets is randomly selected, as the current CCA detection location, the processor 800 is specifically configured to:

可选的，处理器800进一步用于：Optionally, the processor 800 is further configured to:

其中，在图8中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器800代表的一个或多个处理器和存储器820代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机810可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器800负责管理总线架构和通常的处理，存储器820可以存储处理器800在执行操作时所使用的数据。Wherein, in FIG. 8, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 800 and various circuits of memory represented by memory 820. The bus architecture also links various other circuits such as peripherals, voltage regulators, and power management circuits. It is well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 810 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 in performing operations.

参阅图9所示，本申请实施例中提供一种用户设备，包括：As shown in FIG. 9, a user equipment is provided in the embodiment of the present application, including:

处理器900，用于读取存储器920中的程序，执行下列过程：The processor 900 is configured to read a program in the memory 920 and perform the following process:

确定当前的空闲信道评估CCA检测位置；在该CCA检测位置进行CCA检测，确定当前信道空闲时，通过收发机910在当前信道上发送信号，以接入当前信道；Determining a current idle channel assessment CCA detection location; performing CCA detection at the CCA detection location to determine that the current channel is idle, transmitting a signal on the current channel through the transceiver 910 to access the current channel;

收发机910，用于在处理器900的控制下接收和发送数据。The transceiver 910 is configured to receive and transmit data under the control of the processor 900.

可选的，通过收发机910发送的信号用于指示该网络侧设备已占用该空闲信道，且该信号为任意类型的信号。Optionally, the signal sent by the transceiver 910 is used to indicate that the network side device has occupied the idle channel, and the signal is any type of signal.

可选的，确定当前的CCA检测位置时，处理器900具体用于：Optionally, when determining the current CCA detection location, the processor 900 is specifically configured to:

可选的，在IDLE时段中随机挑选时间位置时，或者，在IDLE时段中指定时间范围内随机挑选时间位置时，处理器900具体用于：Optionally, when the time position is randomly selected in the IDLE period, or when the time position is randomly selected within the specified time range in the IDLE period, the processor 900 is specifically configured to:

采用默认随机函数，基于指定标识信息，在IDLE时段中或者在IDLE时段中指定时间范围内，随机挑选时间位置。 The default random function is used to randomly select the time position within the IDLE period or within the specified time range in the IDLE period based on the specified identification information.

可选的，在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置时，处理器900具体用于：Optionally, when any one of the preset CCA detection location sets is randomly selected, as the current CCA detection location, the processor 900 is specifically configured to:

可选的，处理器900进一步用于：Optionally, the processor 900 is further configured to:

其中，在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器900代表的一个或多个处理器和存储器920代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机910可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口930还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。In FIG. 9, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 900 and various circuits of memory represented by memory 920. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 910 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 930 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

处理器900负责管理总线架构和通常的处理，存储器920可以存储处理器900在执行操作时所使用的数据。The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 in performing operations.

综上所述，本申请实施例中，通信设备确定当前的空闲信道评估CCA检测位置；并在该CCA检测位置进行CCA检测，确定当前信道空闲时，在当前信道上发送信号，以接入当前信道，这样，通过动态产生CCA检测位置的方式，有效避免了各个运营商的通信设备在同步状态下占用相同时频资源，从而大大降低了资源碰撞情况的发生，进而有效避免了通信设备间的信号干扰，同时保证各个运营商的通信设备接入信道的公平性，提升了通信设备的工作性能。In summary, in the embodiment of the present application, the communications device determines the current idle channel assessment CCA detection location; and performs CCA detection at the CCA detection location to determine that the current channel is idle, and sends a signal on the current channel to access the current The channel, in this way, by dynamically generating the CCA detection location, the communication equipment of each operator is effectively avoided to occupy the same time-frequency resource in the synchronous state, thereby greatly reducing the occurrence of resource collision, thereby effectively avoiding the communication device. Signal interference, while ensuring the fairness of access channels of communication devices of various operators, and improving The working performance of the communication device.

本领域内的技术人员应明白，本申请的实施例可提供为方法、***、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

本申请是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。While the preferred embodiment of the present application has been described, it will be apparent that those skilled in the art can make further changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。 It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, it is intended that the present invention cover the modifications and variations of the embodiments of the present invention.

Claims

一种信道接入方法，其特征在于，包括：A channel access method, comprising:

通信设备确定当前的空闲信道评估CCA检测位置；The communication device determines a current idle channel assessment CCA detection location;

所述通信设备在所述CCA检测位置进行CCA检测，确定当前信道空闲时，在当前信道上发送信号，以接入当前信道。The communication device performs CCA detection at the CCA detection location, and determines that when the current channel is idle, a signal is sent on the current channel to access the current channel.
如权利要求1所述的方法，其特征在于，所述信号用于指示所述通信设备已占用所述空闲信道，且所述信号为任意类型的信号。The method of claim 1 wherein said signal is for indicating that said communication device has occupied said idle channel and said signal is of any type of signal.
如权利要求1所述的方法，其特征在于，所述通信设备确定当前的CCA检测位置，具体包括：The method of claim 1, wherein the determining, by the communications device, the current CCA detection location comprises:

所述通信设备获取预设规则，并基于该预设规则获取指定的CCA检测位置作为当前的CCA检测位置；或者，The communication device acquires a preset rule, and acquires a specified CCA detection location as a current CCA detection location based on the preset rule; or

所述通信设备获取预设的CCA检测范围，获取预设规则，以及基于所述预设规则从指定的CCA检测范围中确定当前的CCA检测位置。The communication device acquires a preset CCA detection range, acquires a preset rule, and determines a current CCA detection location from the specified CCA detection range based on the preset rule.
如权利要求1所述的方法，其特征在于，所述通信设备确定当前的CCA检测位置，具体包括：The method of claim 1, wherein the determining, by the communications device, the current CCA detection location comprises:

所述通信设备将在空闲IDLE时段中随机挑选的时间位置，作为当前的CCA检测位置；或者，The communication device will randomly select a time position in the idle IDLE period as the current CCA detection location; or

所述通信设备将在IDLE时段中指定时间范围内随机挑选的时间位置，作为当前的CCA检测位置；或者，The communication device will randomly select a time position within a specified time range in the IDLE period as the current CCA detection position; or

所述通信设备在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置。The communication device randomly selects any one of the CCA detection locations in the preset CCA detection location set as the current CCA detection location.
如权利要求4所述的方法，其特征在于，所述通信设备在IDLE时段中随机挑选时间位置，或者，通信设备在IDLE时段中指定时间范围内随机挑选时间位置，包括：The method according to claim 4, wherein the communication device randomly picks a time position in the IDLE period, or the communication device randomly picks the time position within a specified time range in the IDLE period, including:

所述通信设备根据高层指令，在IDLE时段中或者在IDLE时段中指定时间范围内，确定高层随机挑选的时间位置；或者，Determining, by the high-level instruction, the time position of the high-level random selection in the IDLE period or in the specified time range in the IDLE period according to the high-level instruction; or

所述通信设备基于预设规则，在IDLE时段中或者在IDLE时段中指定时间范围内，挑选时间位置，其中，所述预设规则是基于运营商间协议随机产生的；或者，The communication device selects a time position in the IDLE period or in a specified time range in the IDLE period based on a preset rule, wherein the preset rule is randomly generated based on an inter-operator protocol; or

所述通信设备采用默认随机函数，基于指定标识信息，在IDLE时段中或者在IDLE时段中指定时间范围内，随机挑选时间位置。The communication device uses a default random function to randomly select a time position in the IDLE period or within a specified time range in the IDLE period based on the specified identification information.
如权利要求5所述的方法，其特征在于，所述指定标识信息至少包括：The method of claim 5, wherein the specifying the identification information comprises at least:

所述通信设备的设备标识、所述通信设备归属的小区的标识、以及所述通信设备归属的运营商的标识中的一种或任意组合。a device identifier of the communication device, an identifier of a cell to which the communication device belongs, and a attribution of the communication device One or any combination of the identifiers of the operators.
如权利要求4所述的方法，其特征在于，所述通信设备在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置，具体包括：The method of claim 4, wherein the communication device randomly selects any one of the CCA detection locations in the preset CCA detection location set as the current CCA detection location, and specifically includes:

所述通信设备根据高层指令，在预设的CCA检测位置集合中，确定高层随机挑选的一个CCA检测位置；或者，The communication device determines, according to a high-level instruction, a CCA detection location randomly selected by the upper layer in the preset CCA detection location set; or

所述通信设备基于预设规则，在预设的CCA检测位置集合中，挑选一个CCA检测位置，其中，所述预设规则是基于运营商间协议随机产生的；或者，The communication device selects a CCA detection location in a preset CCA detection location set based on a preset rule, where the preset rule is randomly generated based on an inter-operator protocol; or

所述通信设备采用默认随机函数，基于指定标识信息，在预设的CCA检测位置集合中，随机挑选一个CCA检测位置。The communication device uses a default random function to randomly select a CCA detection location in the preset CCA detection location set based on the specified identification information.
如权利要求1－7任一项所述的方法，其特征在于，进一步包括：The method of any of claims 1-7, further comprising:

所述通信设备确定当前信道不空闲时，在当前固定帧周期内不发送任何信号，并停止CAA检测，所述固定帧周期包括数据传输时长和IDLE时长；The communication device determines that the current channel is not idle, does not send any signal during the current fixed frame period, and stops CAA detection, where the fixed frame period includes a data transmission duration and an IDLE duration;

所述通信设备在下一个固定帧周期到达时，继续确定当前最新的CCA检测位置，以及在所述最新的CCA检测位置进行CCA检测，并在确定当前信道空闲时，在当前信道上发送信号，以接入当前信道。The communication device continues to determine the current latest CCA detection location when the next fixed frame period arrives, and performs CCA detection at the latest CCA detection location, and sends a signal on the current channel when determining that the current channel is idle. Access the current channel.
如权利要求1－8任一项所述的方法，其特征在于，所述通信设备为基站或终端。The method of any of claims 1-8, wherein the communication device is a base station or a terminal.
一种信道接入装置，其特征在于，包括：A channel access device, comprising:

确定单元，用于确定当前的空闲信道评估CCA检测位置；a determining unit, configured to determine a current idle channel assessment CCA detection location;

发送单元，用于在所述CCA检测位置进行CCA检测，确定当前信道空闲时，在当前信道上发送信号，以接入当前信道。And a sending unit, configured to perform CCA detection at the CCA detection location, and determine that when the current channel is idle, send a signal on the current channel to access the current channel.
如权利要求10所述的装置，其特征在于，所述发送单元发送的所述信号用于指示所述装置已占用所述空闲信道，且所述信号为任意类型的信号。The apparatus according to claim 10, wherein said signal transmitted by said transmitting unit is for indicating that said device has occupied said idle channel, and said signal is any type of signal.
如权利要求10所述的装置，其特征在于，确定当前的CCA检测位置时，所述确定单元具体用于：The apparatus according to claim 10, wherein when determining the current CCA detection location, the determining unit is specifically configured to:

获取预设规则，并基于该预设规则获取指定的CCA检测位置作为当前的CCA检测位置；或者，Obtaining a preset rule, and acquiring a specified CCA detection location as the current CCA detection location based on the preset rule; or

获取预设的CCA检测范围，获取预设规则，以及基于所述预设规则从指定的CCA检测范围中确定当前的CCA检测位置。Acquiring a preset CCA detection range, acquiring a preset rule, and determining a current CCA detection position from the specified CCA detection range based on the preset rule.
如权利要求10所述的装置，其特征在于，确定当前的CCA检测位置时，所述确定单元具体用于：The apparatus according to claim 10, wherein when determining the current CCA detection location, the determining unit is specifically configured to:

将在空闲IDLE时段中随机挑选的时间位置，作为当前的CCA检测位置；或者， The time position randomly selected in the idle IDLE period as the current CCA detection position; or

将在IDLE时段中指定时间范围内随机挑选的时间位置，作为当前的CCA检测位置；或者，The time position randomly selected within the specified time range in the IDLE period as the current CCA detection position; or,

在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置。Any one of the CCA detection positions is randomly selected in the preset CCA detection position set as the current CCA detection position.
如权利要求13所述的装置，其特征在于，在IDLE时段中随机挑选时间位置时，或者，在IDLE时段中指定时间范围内随机挑选时间位置时，所述确定单元具体用于：The apparatus according to claim 13, wherein when the time position is randomly selected in the IDLE period, or when the time position is randomly selected within the specified time range in the IDLE period, the determining unit is specifically configured to:

根据高层指令，在IDLE时段中或者在IDLE时段中指定时间范围内，确定高层随机挑选的时间位置；或者，Determining the time position of the high-level random selection in the IDLE period or within the specified time range in the IDLE period according to the high-level instruction; or,

基于预设规则，在IDLE时段中或者在IDLE时段中指定时间范围内，挑选时间位置，其中，所述预设规则是基于运营商间协议随机产生的；或者，Selecting a time position in the IDLE period or in a specified time range in the IDLE period based on a preset rule, wherein the preset rule is randomly generated based on an inter-operator protocol; or

采用默认随机函数，基于指定标识信息，在IDLE时段中或者在IDLE时段中指定时间范围内，随机挑选时间位置。The default random function is used to randomly select the time position within the IDLE period or within the specified time range in the IDLE period based on the specified identification information.
如权利要求14所述的装置，其特征在于，所述确定单元获取的指定标识信息至少包括：The device according to claim 14, wherein the specified identification information acquired by the determining unit comprises at least:

所述装置的设备标识、所述装置归属的小区的标识、以及所述装置归属的运营商的标识中的一种或任意组合。One or any combination of the device identification of the device, the identity of the cell to which the device belongs, and the identity of the operator to which the device belongs.
如权利要求13所述的装置，其特征在于，在预设的CCA检测位置集合中随机挑选出任意一个CCA检测位置，作为当前的CCA检测位置时，所述确定单元具体用于：The apparatus according to claim 13, wherein the determining unit is specifically configured to: when the CCA detection position is randomly selected in the preset CCA detection position set, as the current CCA detection position, the determining unit is specifically configured to:

根据高层指令，在预设的CCA检测位置集合中，确定高层随机挑选的一个CCA检测位置；或者，According to the high-level instruction, in the preset CCA detection location set, determine a CCA detection location randomly selected by the upper layer; or

基于预设规则，在预设的CCA检测位置集合中，挑选一个CCA检测位置，其中，所述预设规则是基于运营商间协议随机产生的；或者，Selecting, according to a preset rule, a CCA detection location in a preset CCA detection location set, where the preset rule is randomly generated based on an inter-operator protocol; or

采用默认随机函数，基于指定标识信息，在预设的CCA检测位置集合中，随机挑选一个CCA检测位置。A default random function is used to randomly select a CCA detection location in the preset CCA detection location set based on the specified identification information.
如权利要求10－17任一项所述的装置，其特征在于，所述发送单元进一步用于：The apparatus according to any one of claims 10-17, wherein the transmitting unit is further configured to:

确定当前信道不空闲时，在当前固定帧周期内不发送任何信号，并停止CAA检测，所述固定帧周期包括数据传输时长和IDLE时长；When it is determined that the current channel is not idle, no signal is sent during the current fixed frame period, and the CAA detection is stopped, where the fixed frame period includes the data transmission duration and the IDLE duration;

在下一个固定帧周期到达时，继续确定当前最新的CCA检测位置，以及在所述最新的CCA检测位置进行CCA检测，并在确定当前信道空闲时，在当前信道上发送信号，以接入当前信道。When the next fixed frame period arrives, the current latest CCA detection position is continuously determined, and CCA detection is performed at the latest CCA detection position, and when it is determined that the current channel is idle, a signal is transmitted on the current channel to access the current channel. .
如权利要求10－18任一项所述的装置为基站或终端。 The device of any of claims 10-18 is a base station or terminal.