WO2011060576A1

WO2011060576A1 - Method and apparatus for spectrum sharing in a wireless distributed communication network

Info

Publication number: WO2011060576A1
Application number: PCT/CN2009/074997
Authority: WO
Inventors: 徐斌阳
Original assignee: 上海贝尔股份有限公司; 阿尔卡特朗讯
Priority date: 2009-11-17
Filing date: 2009-11-17
Publication date: 2011-05-26
Also published as: CN102577470B; CN102577470A

Abstract

A method and an apparatus for spectrum sharing in a wireless distributed communication network are provided in the present invention. According to an embodiment of the present invention, a method for realizing spectrum sharing in a device of a communication group in the wireless distributed communication network is provided. The communication group comprises two communication terminals, and the method includes the following steps: A. detecting a frame control header of a media access control frame, and the frame control header contains information indicating the frame structure of the media access control frame and information indicating the encoding and the modulation modes (S41); B. according to the information indicating the frame structure of the media access control frame, detecting a plurality of beacon channels which are behind the frame control header and are used to send access beacons, and selecting an idle beacon channel (S42); C. within at least one subsequent media access control frame period, according to the encoding and the modulation modes, sending a frame control header, sending a beacon in the selected beacon channel, and implementing the spectrum sharing policy in the corresponding channel behind the beacon channel (S43).

Description

无线分布式通信网络中的频谱共享方法及装置技术领域 Spectrum sharing method and device in wireless distributed communication network

本发明涉及无线通信技术，尤其涉及无线分布式网络中的频谱共享方法及装置。背景技术 The present invention relates to wireless communication technologies, and in particular, to a spectrum sharing method and apparatus in a wireless distributed network. Background technique

由于未来对数据传输速率的需求越来越大，更高的数据传输速率，除了需要更先进的调制编码方式等技术的支持，也需要更大的物理带宽（频谱），而用于移动无线通讯的频谱资源日益紧张，尽管如此，有很多已分配的频段并未充分利用。于是，迫切地需要有一种能够利用这一空闲资源的方法。 IEEE802.22 工作组正是致力于制定用于利用空闲的频段（例如， TV频段等）进行无线通讯的标准，试图实现在不影响频段原有授权使用者的情况下，尽最大可能地利用空闲时的频谱进行通讯。 Due to the increasing demand for data transmission rates in the future, higher data transmission rates, in addition to the need for more advanced modulation and coding methods, require greater physical bandwidth (spectrum) for mobile wireless communications. The spectrum resources are becoming increasingly tight, however, many of the allocated frequency bands are not fully utilized. Therefore, there is an urgent need for a method that can utilize this idle resource. The IEEE 802.22 working group is working to develop standards for wireless communication using idle frequency bands (eg, TV bands, etc.) in an attempt to maximize the use of idleness without affecting the original authorized users of the frequency bands. When the spectrum is communicating.

频谱共享可以有效地提高频谱利用率。该技术可以由集中式解决方案或者分布式解决方案实现。在集中式解决方案中，需要有一个中央实体来全局地管理频谱共享用户及其频谱分配行为。集中式解决方案的优势在于可以实现全局最优的频谱利用率。然而，因为集中式解决方案依赖于中央实体，其缺点在于网络可扩展性低、可靠性低、覆盖范围小。发明内容 Spectrum sharing can effectively improve spectrum utilization. This technology can be implemented by a centralized solution or a distributed solution. In a centralized solution, a central entity is needed to manage the spectrum sharing users and their spectrum allocation behavior globally. The advantage of a centralized solution is that it enables globally optimal spectrum utilization. However, because centralized solutions rely on central entities, they have the disadvantage of low network scalability, low reliability, and low coverage. Summary of the invention

除了集中式解决方案外，还存在另一种选择，即分布式解决方案。分布式解决方案在网络设置中无需中央实体，其可以提供更好的网络扩展性、节点失败恢复的鲁棒性以及更大的覆盖范围。 In addition to a centralized solution, there is another option, a distributed solution. Distributed solutions eliminate the need for a central entity in network setup, which provides better network scalability, robustness for node failure recovery, and greater coverage.

在分布式解决方案中，无需一个中央实体的协调，频谱共享过程被分布地执行。各用户应自组织以形成一个自治的频谱共享网络，从而实现最优的频谱利用。为了实现这一目的，一个最大的挑战来自于分布的用户管理，尤其是用户接入机制。为了实现分布式场景下的最优频谱利用率，迭代的方案为一种有效的解决方案。在这类方案中，频谱共享用户需要制定各自的频谱分配策略，以引导分布式频谱共享分配过程收敛至最优。在这些过程中，分布式用户应该步调一致地按顺序制定频谱共享策略、交换频谱共享信息，从而用户的共存与合作成为可能。 In a distributed solution, the spectrum sharing process is performed distributedly without the coordination of a central entity. Each user should self-organize to form an autonomous spectrum sharing network to achieve optimal spectrum utilization. To achieve this, one of the biggest challenges Self-distributed user management, especially user access mechanisms. In order to achieve optimal spectrum utilization in a distributed scenario, the iterative scheme is an effective solution. In such schemes, spectrum sharing users need to develop their own spectrum allocation strategies to guide the distributed spectrum sharing allocation process to converge optimally. In these processes, distributed users should develop spectrum sharing policies and exchange spectrum sharing information in order, so that user coexistence and cooperation become possible.

为了解决上述问题，本发明提供了用于实现无线分布式网络参与频谱共享的用户的接入管理的技术方案。 In order to solve the above problems, the present invention provides a technical solution for implementing access management of a user of a wireless distributed network participating in spectrum sharing.

根据本发明的一个实施例，一种用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的方法，该通信组包括两个通信终端，所述方法包括以下步骤： a. 侦测无线信号，并确定一个空闲的频带； b. 在所述频带上发送用于频谱共享接入管理的媒体接入控制帧的帧控制报头，所述媒体接入控制帧依次包括：帧控制报头，多个用于发送接入信标的信标信道，与所述信标信道相对应的多个用于执行频谱共享策略的信道。 According to an embodiment of the invention, a method for implementing spectrum sharing in a device of a communication group of a wireless distributed communication network, the communication group comprising two communication terminals, the method comprising the steps of: a. Detecting a wireless signal and determining an idle frequency band; b. transmitting, in the frequency band, a frame control header of a medium access control frame for spectrum sharing access management, where the medium access control frame includes: frame control a header, a plurality of beacon channels for transmitting an access beacon, and a plurality of channels for performing a spectrum sharing policy corresponding to the beacon channel.

根据本发明另一个实施例，提供了一种用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的第一装置，该通信组包括两个通信终端，所述第一装置包括：频带确定装置，用于侦测无线信号，并确定一个空闲的频带；第一发送装置，用于在所述频带上发送用于频谱共享接入管理的媒体接入控制帧的帧控制报头，所述媒体接入控制帧依次包括：帧控制报头，多个用于发送接入信标的信标信道，与所述信标信道相对应的多个用于执行频谱共享策略的信道。 According to another embodiment of the present invention, there is provided a first apparatus for implementing spectrum sharing in a device for a communication group of a wireless distributed communication network, the communication group comprising two communication terminals, the first device The method includes: a frequency band determining apparatus, configured to detect a wireless signal, and determine an idle frequency band; and a first sending apparatus, configured to send, in the frequency band, a frame control header of a medium access control frame for spectrum sharing access management The medium access control frame includes: a frame control header, a plurality of beacon channels for transmitting an access beacon, and a plurality of channels for performing a spectrum sharing policy corresponding to the beacon channel.

根据本发明的另一个实施例，提供了一种用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的方法，该通信组包括两个通信终端，所述方法包括以下步骤： A. 检测媒体接入控制帧的帧控制报头，所述帧控制报头中包括用于指示媒体接入控制帧的帧结构的信息以及用于指示调制编码方式的信息； B. 根据所述指示媒体接入控制帧的帧结构的信息，检测帧控制报头之后的多个用于发送接入信标的信标信道，并选择一个空闲的信标信道； C. 在随后的至少一个媒体接入控制帧的周期内，按照所述编码调制方式，发送帧控制报头，在所选择的信标信道发送信标，并在该信标信道之后与之相对应的信道执行频谱共享策略。 According to another embodiment of the present invention, there is provided a method for implementing spectrum sharing in a device for a communication group of a wireless distributed communication network, the communication group comprising two communication terminals, the method comprising the following steps A. detecting a frame control header of the medium access control frame, where the frame control header includes information for indicating a frame structure of the medium access control frame and information for indicating a modulation and coding mode; B. according to the indication Media access control frame frame structure information, detecting multiple uses after the frame control header Transmitting a beacon channel of the access beacon and selecting an idle beacon channel; C. transmitting a frame control header according to the coded modulation mode during a subsequent period of at least one medium access control frame, The beacon channel transmits a beacon, and a spectrum sharing strategy is performed on the channel corresponding thereto after the beacon channel.

根据本发明的另一个实施例，提供了一种用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的第二装置，该通信组包括两个通信终端，所述第二装置包括：检测装置，用于检测媒体接入控制帧的帧控制报头，所述帧控制报头中包括用于指示媒体接入控制帧的帧结构的信息以及用于指示调制编码方式的信息；信标信道确定装置，用于根据所述指示媒体接入控制帧的帧结构的信息，检测帧控制报头之后的多个用于发送接入信标的信标信道，并选择一个空闲的信标信道；第二发送装置，用于在随后的至少一个媒体接入控制帧的周期内，按照所述编码调制方式，发送帧控制报头，在所选择的信标信道发送信标，并在该信标信道之后与之相对应的信道执行频谱共享策略。 According to another embodiment of the present invention, there is provided a second apparatus for implementing spectrum sharing in a device for a communication group of a wireless distributed communication network, the communication group comprising two communication terminals, the second The device includes: a detecting device, configured to detect a frame control header of the medium access control frame, where the frame control header includes information for indicating a frame structure of the medium access control frame and information for indicating a modulation and coding manner; a channel determining device, configured to detect, according to the information indicating a frame structure of the medium access control frame, a plurality of beacon channels for transmitting an access beacon after the frame control header, and select an idle beacon channel; a second sending means, configured to send a frame control header, transmit a beacon on the selected beacon channel, and transmit the beacon on the selected beacon channel in a period of the subsequent at least one medium access control frame The channel corresponding to it then performs a spectrum sharing strategy.

使用本发明提供的方法及装置，有助于实现无线分布式网絡中的频谱共享，提高***的频谱利用率。附图说明 The method and device provided by the invention can help realize spectrum sharing in a wireless distributed network and improve spectrum utilization of the system. DRAWINGS

参考下面的图和说明，将更好地理解该***。图中的元件不一定按比例绘制，而是重点用于说明典型模型的原理。在图中，贯穿不同的示图，类似的参考标号表示对应的特征。 The system will be better understood with reference to the figures and description below. The components in the figures are not necessarily drawn to scale, but rather are used to illustrate the principles of a typical model. Throughout the drawings, like reference characters have

图 1示出了根据本发明的一个实施例的无线分布式网络的示意图； 1 shows a schematic diagram of a wireless distributed network in accordance with one embodiment of the present invention;

图 2示出了根据本发明的一个实施例的用于频谱共享接入管理的媒体接入控制帧的帧结构； 2 illustrates a frame structure of a medium access control frame for spectrum sharing access management according to an embodiment of the present invention;

图 3示出了根据本发明的一个实施例的用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的方法流程图； 3 shows a flow chart of a method for implementing spectrum sharing in a device for a communication group of a wireless distributed communication network, in accordance with one embodiment of the present invention;

图 4示出了根据本发明的一个实施例的用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的方法流程图；图 5示出了根据本发明的一个实施例的用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的第一装置的结构框图； Figure 4 illustrates a wireless distributed communication network in accordance with one embodiment of the present invention. Flowchart for implementing spectrum sharing in a device of a communication group of the network; FIG. 5 shows spectrum sharing in a device for a communication group of a wireless distributed communication network according to an embodiment of the present invention a block diagram of the first device;

图 6示出了根据本发明的一个实施例的用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的第二装置的结构框图。具体实施方式 Figure 6 is a block diagram showing the structure of a second means for realizing spectrum sharing in a device for a communication group of a wireless distributed communication network in accordance with one embodiment of the present invention. detailed description

图 1 示出了根据本发明的一个实施例的无线分布式网络的示意图。如图 1所示，无线分布式网络中包括一个通信组 10、一个通信组 20和一个通信组 30。一个通信组通常由两个正在建立连接或者正在通信的设备组成。换言之，一个通信组可以由一个单跳通信链路来表征。例如，通信组 10包括两个相互通信的设备 1 1和 12，通信组 20包括两个相互通信的设备 21和 22，通信组包括两个相互通信的设备 31和 32。这三个通信组可能会因为要使用相同的频谱资源而组成了一个频谱共享社区。 Figure 1 shows a schematic diagram of a wireless distributed network in accordance with one embodiment of the present invention. As shown in FIG. 1, a wireless distribution network includes a communication group 10, a communication group 20, and a communication group 30. A communication group usually consists of two devices that are establishing a connection or are communicating. In other words, a communication group can be characterized by a single-hop communication link. For example, the communication group 10 includes two devices 1 1 and 12 that communicate with each other, and the communication group 20 includes two devices 21 and 22 that communicate with each other, and the communication group includes two devices 31 and 32 that communicate with each other. These three communication groups may form a spectrum sharing community because they use the same spectrum resources.

在本发明中，组成通信组的设备不限于基站、中继站、移动终端。同一个通信组中的两个设备可以是相同类型的设备，也可以是不同类型的设备。 In the present invention, the devices constituting the communication group are not limited to the base station, the relay station, and the mobile terminal. Two devices in the same communication group can be the same type of device or different types of devices.

频谱共享社区的一种可能的形成过程如下：在一定的时间、一定的区域内，无线分布式网络内仅剩余少量频段的资源可供分配；通信组 10首先确定使用某一个频段的资源进行通信，并发送用于频谱共享资源分配的媒体接入控制帧的信号，以建立一个频谱共享社区；之后，各通信组通过对该媒体接入控制帧的响应来加入或退出该频谱共享社区。 A possible formation process of the spectrum sharing community is as follows: Within a certain time and a certain area, only a small number of resources of the remaining frequency bands are available for allocation in the wireless distributed network; the communication group 10 first determines to use a resource of a certain frequency band for communication. And transmitting a signal of a medium access control frame for spectrum sharing resource allocation to establish a spectrum sharing community; thereafter, each communication group joins or exits the spectrum sharing community by responding to the medium access control frame.

当一组中的两个设备到该通信组外的其他设备的信道传输特性的差别可以忽略不计时，例如通信终端 1 1 与 12之间的距离远小于它们与组外的其他通信终端的距离时，这两个设备之间的双向链路可以表征一个通信组。 The difference in channel transmission characteristics between two devices in a group to other devices outside the communication group can be ignored, for example, the distance between the communication terminals 1 1 and 12 is much smaller than the distance between them and other communication terminals outside the group. When the two-way link between the two devices A communication group can be characterized.

当一组中的两个设备到该通信组外的其他设备的信道传输特性的差别比较显著时，用单向链路来表征一个通信组是适宜的。换言之，信号由设备 11发到设备 12的链路和信号由设备 12发送到设备 11 的链路分别表征一个通信组。频谱共享社区中是以每通信组为单位分配无线资源的。 When the difference in channel transmission characteristics between two devices in a group to other devices outside the communication group is significant, it is appropriate to use a unidirectional link to characterize a communication group. In other words, the link from the device 11 to the device 12 and the link sent by the device 12 to the device 11 respectively characterize a communication group. In the spectrum sharing community, wireless resources are allocated in units of communication groups.

图 2 示出了根据本发明的一个实施例的用于频谱共享接入管理的媒体接入控制帧的帧结构。如图所示，该实施例中的媒体接入控制帧包括：帧控制报头（FCH ) 、一个第一子帧 Cl、一个第二子帧 C2。其中，第一子帧 C1 包括多个用于发送接入信标（beacon )的信标信道 B1至 Bn，第二子帧 C2包括多个用于执行频谱共享策略的信道 P1至 Pn，分别与信标信道 B1至 Bn——对应。具体地，信标信道 B1至 Bn可以是第一子帧 C1中的多个连续的时隙，信道 P1至 Pn 也可以是第二子帧 C2中的多个连续的时隙。 P1至 Pn的排列顺序可以与 B1至 Bn的排列顺序相同，也可以不同。 2 shows a frame structure of a medium access control frame for spectrum sharing access management according to an embodiment of the present invention. As shown, the medium access control frame in this embodiment includes: a frame control header (FCH), a first subframe Cl, and a second subframe C2. The first subframe C1 includes a plurality of beacon channels B1 to Bn for transmitting an access beacon, and the second subframe C2 includes a plurality of channels P1 to Pn for performing a spectrum sharing policy, respectively. The standard channels B1 to Bn - corresponding. Specifically, the beacon channels B1 to Bn may be a plurality of consecutive time slots in the first subframe C1, and the channels P1 to Pn may also be a plurality of consecutive time slots in the second subframe C2. The order of arrangement of P1 to Pn may be the same as or different from the order of B1 to Bn.

在本发明的一些其他实施例，媒体接入控制帧的帧结构有一些变化。例如，一个信标信道 Bi ( i e {1 , 2, ... , η} ) 与一个信道 Pi 前后相连，组成一个组合信道； n个组合信道在媒体接入控制帧中按一定顺序排列。 In some other embodiments of the invention, there are some variations in the frame structure of the medium access control frame. For example, a beacon channel Bi (i e {1 , 2, ..., η} ) is connected to a channel Pi before and after to form a combined channel; n combined channels are arranged in a certain order in the medium access control frame.

图 3 示出了根据本发明的一个实施例的用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的方法流程图。如图所示，该方法包括两个步骤 S31 和 S32。不失一般性地，以下将以通信组 10中的设备 11为例进行说明。 3 is a flow chart showing a method of implementing spectrum sharing in a device for a communication group of a wireless distributed communication network, in accordance with one embodiment of the present invention. As shown, the method includes two steps S31 and S32. Without loss of generality, the following description will be made by taking the device 11 in the communication group 10 as an example.

在步骤 S31中，设备 11将侦测周围环境的无线信号，并根据接收信号的强度大小确定一个空闲的频带。所确定的这一频带即可被用于通信组 10的通信。 In step S31, the device 11 will detect the wireless signal of the surrounding environment and determine an idle frequency band according to the intensity of the received signal. This determined frequency band can be used for communication of the communication group 10.

在步骤 S32中，设备 11将在所确定的频带上发送用于频谱共享接入管理的媒体接入控制帧的帧控制报头。这里的媒体接入控制帧可以如图 2 所示，依次包括：帧控制报头，多个用于发送接入信标的信标信道，与所述信标信道相对应的多个用于执行频谱共享策略的信道。在帧控制报头中，可以包括用于指示媒体接入控制帧的帧结构的信息以及用于指示调制编码方式的信息。另外，帧控制报头中还可以包括其他物理层特征信息，例如码分多址接入***中的码字。这样，一个频谱共享社区就建立起来。各通信组可以通过在信标信道上发送信标的方式加入该频谱共享社区，也可以以停止发送信标的方式退出该频谱共享社区。 In step S32, the device 11 will transmit a frame control header for the medium access control frame for spectrum sharing access management on the determined frequency band. The media access control frame herein may be as shown in FIG. 2, and includes: a frame control header, and multiple used to send an access beacon. a beacon channel, a plurality of channels corresponding to the beacon channel for performing a spectrum sharing policy. In the frame control header, information indicating a frame structure of the medium access control frame and information indicating a modulation coding mode may be included. In addition, other physical layer feature information, such as codewords in a code division multiple access system, may also be included in the frame control header. In this way, a spectrum sharing community is established. Each communication group may join the spectrum sharing community by transmitting a beacon on the beacon channel, or may exit the spectrum sharing community by stopping transmitting the beacon.

需要理解的是，上述方法中的步骤 S31和 S32通常是由一个通信组中的发送端来执行的。但是也不排除这两个步骤 S31和 S32由一个通信组中的接收端来执行，或者分别由发送端、接收端执行其中的部分步骤。 It is to be understood that steps S31 and S32 in the above method are generally performed by the transmitting end in a communication group. However, it is not excluded that the two steps S31 and S32 are performed by the receiving end in one communication group, or some of the steps are performed by the transmitting end and the receiving end, respectively.

图 4 示出了根据本发明的一个实施例的用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的方法流程图。如图所示，该方法包括三个步骤 S41、 S42和 S43。不失一般性地，以下将以通信组 20中的设备 21为例进行说明。 4 is a flow chart showing a method of implementing spectrum sharing in a device for a communication group of a wireless distributed communication network, in accordance with one embodiment of the present invention. As shown, the method includes three steps S41, S42 and S43. Without loss of generality, the following description will be made by taking the device 21 in the communication group 20 as an example.

该实施例中的方法的前提是频谱共享社区已经建立，用于频谱共享接入管理的媒体接入控制帧已经在空中传播。 The premise of the method in this embodiment is that the spectrum sharing community has been established, and the medium access control frame for spectrum sharing access management has been propagated in the air.

在步骤 S41 中，设备 21将检测媒体接入控制帧的帧控制报头，所述帧控制报头中包括用于指示媒体接入控制帧的帧结构的信, %以及用于指示调制编码方式的信息。检测到用于频谱共享接入管理的该媒体接入控制帧的帧控制报头之后，设备 21就可以根据用于指示帧结构的信息对该帧进行定位与同步，并可以根据用于指示调制编码方式的信息对该帧作出响应。需要理解的是，帧控制报头还可能包括其他物理层特征信息，例如码分多址接入***中的码字。 In step S41, the device 21 will detect a frame control header of the medium access control frame, where the frame control header includes a message indicating a frame structure of the medium access control frame, %, and information for indicating a modulation and coding mode. . After detecting the frame control header of the medium access control frame for spectrum sharing access management, the device 21 may locate and synchronize the frame according to the information used to indicate the frame structure, and may be used to indicate modulation coding. The way the information responds to the frame. It should be understood that the frame control header may also include other physical layer feature information, such as codewords in a code division multiple access system.

在步骤 S42中，设备 21将根据指示媒体接入控制帧的帧结构的信息，检测帧控制报头之后的多个用于发送接入信标的信标信道，并选择一个空闲的信标信道。这里的帧结构可以例如图 2所示，设备 21检测信标信道（时隙） B 1至 Bn, 并选择一个空闲的信标信道，例如信标信道 B2。在步骤 S43中，设备 21将在随后的至少一个媒体接入控制帧的周期内，按照所述编码调制方式，发送帧控制报头，在所选择的信标信道发送信标，并在该信标信道之后与之相对应的信道执行频谱共享策略。具体地，从接下来的一个媒体接入控制帧开始，设备 21 将根据所检测到的帧控制报头来同步地发送帧控制报头；在信标信道 B2发送信标，以宣示通信组 20对相应资源的占用；并在信道 P2 中执行通信组 20的频语共享策略。这样的操作将在至少一个媒体接入控制帧中持续。该频谱共享社区中的各通信组在每一个媒体接入控制帧的周期内分布地执行一次优化频谱共享方案的迭代过程，直到该频谱共享社区中的各通信组就共享该频带的资源分配达成一致。各通信组分别发送帧控制报头可以使得该频谱共享社区的覆盖范围得以增大。 In step S42, the device 21 detects a plurality of beacon channels for transmitting the access beacon after the frame control header according to the information indicating the frame structure of the medium access control frame, and selects an idle beacon channel. The frame structure here can be, for example, as shown in Fig. 2, the device 21 detects beacon channels (time slots) B 1 to Bn and selects an idle beacon channel, such as beacon channel B2. In step S43, the device 21 will transmit a frame control header, transmit a beacon on the selected beacon channel, and transmit the beacon on the selected beacon channel in the period of the subsequent at least one medium access control frame. The channel corresponding to the channel then performs a spectrum sharing strategy. Specifically, starting from the next media access control frame, the device 21 will synchronously transmit the frame control header according to the detected frame control header; and send a beacon on the beacon channel B2 to announce the correspondence of the communication group 20 The occupation of resources; and the frequency sharing strategy of communication group 20 is performed in channel P2. Such operations will continue in at least one media access control frame. Each communication group in the spectrum sharing community performs an iterative process of optimizing the spectrum sharing scheme distributedly in a period of each medium access control frame until each communication group in the spectrum sharing community shares the resource allocation of the frequency band. Consistent. The transmission of the frame control header by each communication group can increase the coverage of the spectrum sharing community.

当各通信组就共享频谱的资源分配达成一致后，即可开始各自的通信。 When each communication group agrees on the resource allocation of the shared spectrum, the respective communication can be started.

需要理解的是，上述方法中的步骤 S41、 S42和 S43通常是由一个通信组中的发送端来执行的。但是也不排除这三个步骤由一个通信组中的接收端来执行，或者由发送端、接收端分别执行其中的部分步骤。 It is to be understood that steps S41, S42 and S43 in the above method are usually performed by the transmitting end in a communication group. However, it is not excluded that these three steps are performed by the receiving end in a communication group, or the transmitting end and the receiving end respectively perform some of the steps.

根据本发明的一个实施例，上述的方法均是应用于无线区域网络环境之下。 According to one embodiment of the invention, the above methods are all applied to a wireless local area network environment.

本领域技术人员应能理解，本发明中的方法不限于应用于无线区域网络，还可以适用于任何其他工作于分布式模式下的无线网络。 Those skilled in the art should understand that the method in the present invention is not limited to application to a wireless area network, and can be applied to any other wireless network operating in a distributed mode.

根据本发明的一个实施例，一个通信组在信标信道发送的信标包括时间戳，可以宣示该通信组加入频谱共享社区的时间。可选地，信标还可以包括该通信组的优先级，用于资源分配的排序、等。 In accordance with an embodiment of the present invention, a beacon transmitted by a communication group on a beacon channel includes a timestamp that can announce when the communication group joins the spectrum sharing community. Optionally, the beacon may also include the priority of the communication group, the ordering of the resource allocation, and the like.

根据本发明的一个实施例，通信组的接入管理还包括冲突退让机制。例如，通信组 20和通信组 30选择了同一个信标信道，并在同一个媒体接入控制帧开始发送信标，则通信组 20、 30的信号将发生冲突。于是，通信组 20、 30可以延迟一段时间之后再次尝试步骤 S42、 S43。所延迟的时间可以是随机的，或者根据一定的冲突避让算法来计算。 According to an embodiment of the present invention, the access management of the communication group further includes a conflict retreat mechanism. For example, if communication group 20 and communication group 30 select the same beacon channel and start transmitting beacons in the same medium access control frame, the signals of communication groups 20, 30 will collide. Thus, the communication groups 20, 30 can delay the attempt again after a period of time S42, S43. The delayed time can be random or calculated according to a certain collision avoidance algorithm.

在上述步骤 S42中，需要根据预定规则来选择空闲的信标信道，可选地预定规则包括以下几种： In the above step S42, the idle beacon channel needs to be selected according to a predetermined rule, and optionally the predetermined rules include the following:

第一种规则是随机地选择一个空闲的信标信道。 The first rule is to randomly select an idle beacon channel.

第二种规则是按照预定顺序，选择所有空闲信标信道中的第一个。具体地，例如所有信标信道 B1至 Bn均空闲，可以按照正常顺序选择第一个信标信道 Bl，或者也可以按照倒序选择第一个信标信道 Bn。 The second rule is to select the first of all idle beacon channels in a predetermined order. Specifically, for example, all of the beacon channels B1 to Bn are idle, the first beacon channel Bl can be selected in the normal order, or the first beacon channel Bn can be selected in reverse order.

第三种规则是选择与该通信组的优先级相匹配或最接近的空闲信标信道。如果一个空闲信标信道的优先级与一个通信组的优先级相匹配，则该通信组选择该信标信道。如果没有与该通信组优先级匹配的空闲信标信道，则该通信组选择一个与其优先级最接近的空闲信标信道。 The third rule is to select an idle beacon channel that matches or is closest to the priority of the communication group. If the priority of an idle beacon channel matches the priority of a communication group, the communication group selects the beacon channel. If there is no idle beacon channel that matches the priority of the communication group, then the communication group selects an idle beacon channel that is closest to its priority.

具体的预定规则还可以是上述几种规则的组合，例如：根据通信组接入时间的顺序以及优先级匹配原则来选择空闲信标信道。 The specific predetermined rule may also be a combination of the above several rules, for example: selecting an idle beacon channel according to the order of the communication group access time and the priority matching principle.

以下是根据本发明一个实施例的，三个通信组接入频谱共享社区的过程。在该实施例中，用于频谱共享接入管理的媒体接入控制帧包括三个信标信道（时隙） Bl、 B2和 B3 , 优先级分别为第一级、第一级和第二级。三个通信组 10、 20和 30的优先级分别为第一级、第二级和第一级，先后加入该频谱共享社区。首先，通信组 10确定了所用的频带并发出第一个媒体接入控制帧。根据接入时间顺序以及优先级匹配原则，通信组 10选择信标信道 B1来发送信标，该信标包括通信组 10的接入时间和优先级信息。随后，通信组 20检测到帧控制报头并试图加入该频谱共享社区。此时还有两个空闲信标信道 B2和 B3，其中信道 B3的优先级与通信组 20相符，于是，通信组 20选择在信道 B3发送信标，该信标包括通信组 20的接入时间和优先级信息。再随后，通信组 30检测到帧控制报头并试图加入该频诸共享社区。此时仅有一个空闲信标信道 B2，于是，通信组 30 选择在信道 B2发送信标，该信标包括通信组 30的接入时间和优先级信息。需要理解的是，通常而言，每当频谱共享社区内的通信组发生变化时，例如有新的通信组加入该社区或者有通信组退出该社区，各通信组会同步地启动优化频谱共享方案的迭代过程。频谱共享社区内通信组的变化可以通过侦测信标信道来确定。 The following is a process in which three communication groups access a spectrum sharing community in accordance with one embodiment of the present invention. In this embodiment, the medium access control frame used for spectrum sharing access management includes three beacon channels (time slots) Bl, B2, and B3, and the priorities are first level, first level, and second level, respectively. . The priority of the three communication groups 10, 20, and 30 is the first level, the second level, and the first level, respectively, and joins the spectrum sharing community. First, the communication group 10 determines the frequency band used and issues the first medium access control frame. Based on the access time sequence and the priority matching principle, the communication group 10 selects the beacon channel B1 to transmit a beacon, the beacon including the access time and priority information of the communication group 10. Subsequently, the communication group 20 detects the frame control header and attempts to join the spectrum sharing community. There are also two idle beacon channels B2 and B3, wherein the priority of channel B3 coincides with communication group 20, and then communication group 20 selects to transmit a beacon on channel B3, the beacon including the access time of communication group 20. And priority information. Then, the communication group 30 detects the frame control header and attempts to join the frequency sharing community. At this time, there is only one idle beacon channel B2, and thus, the communication group 30 The beacon is selected to be transmitted on channel B2, the beacon including the access time and priority information of the communication group 30. It should be understood that, generally speaking, whenever a communication group in a spectrum sharing community changes, for example, a new communication group joins the community or a communication group exits the community, each communication group simultaneously initiates an optimized spectrum sharing scheme. Iterative process. Changes in communication groups within the spectrum sharing community can be determined by detecting beacon channels.

图 5 示出了根据本发明的一个实施例的用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的第一装置的结构框图。如图所示，第一装置 100 包括频带确定装置 101和第一发送装置 102。第一装置 100典型地设置于通信组的设备中，例如设备 11、设备 12之中。不失一般性地，以下将以通信组 10中的设备 1 1 中设置的第一装置 100为例进行说明。 Figure 5 is a block diagram showing the structure of a first device for implementing spectrum sharing in a device for a communication group of a wireless distributed communication network, in accordance with one embodiment of the present invention. As shown, the first device 100 includes a band determining device 101 and a first transmitting device 102. The first device 100 is typically disposed in a device of a communication group, such as device 11, device 12. Without loss of generality, the first device 100 set in the device 1 1 in the communication group 10 will be described below as an example.

设备 1 1 中的频带确定装置 101用于侦测周围环境的无线信号，并根据接收信号的强度大小确定一个空闲的频带。所确定的这一频带即可被用于通信组 10的通信。 The band determining means 101 in the device 1 1 is for detecting a wireless signal of the surrounding environment, and determining an idle frequency band according to the intensity of the received signal. This determined band can be used for communication by the communication group 10.

设备 1 1中的第一发送装置 102用于在所确定的频带上发送用于频谱共享接入管理的媒体接入控制帧的帧控制报头。这里的媒体接入控制帧可以如图 2 所示，依次包括：帧控制报头，多个用于发送接入信标的信标信道，与所述信标信道相对应的多个用于执行频谱共享策略的信道。在帧控制报头中，可以包括用于指示媒体接入控制帧的帧结构的信息以及用于指示调制编码方式的信息。另外，帧控制报头中还可以包括其他物理层特征信息，例如码分多址接入系统中的码字。这样，一个频谱共享社区就建立起来。各通信组可以通过在信标信道上发送信标的方式加入该频语共享社区，也可以以停止发送信标的方式退出该频谱共享社区。 The first transmitting device 102 in the device 1 1 is configured to transmit a frame control header of a medium access control frame for spectrum shared access management on the determined frequency band. The media access control frame herein may be as shown in FIG. 2, and includes: a frame control header, a plurality of beacon channels for transmitting an access beacon, and a plurality of corresponding to the beacon channel for performing spectrum sharing. The channel of the policy. In the frame control header, information indicating a frame structure of the medium access control frame and information indicating a modulation coding mode may be included. In addition, the frame control header may also include other physical layer feature information, such as codewords in a code division multiple access system. In this way, a spectrum sharing community is established. Each communication group may join the frequency sharing community by transmitting a beacon on the beacon channel, or may exit the spectrum sharing community by stopping the transmission of the beacon.

需要理解的是，上述操作通常是由一个通信组中的发送端中的第一装置 100 来执行的。但是也不排除这些操作由一个通信组中的接收端中的第一装置 100 来执行，或者分别由发送端、接收端的第一装置 100执行其中的部分操作。 It is to be understood that the above operations are generally performed by the first device 100 of the transmitting terminals in a communication group. However, it is not excluded that these operations are performed by the first device 100 in the receiving end of a communication group, or a part of the operations are performed by the first device 100 of the transmitting end and the receiving end, respectively.

图 6 示出了根据本发明的一个实施例的用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的第二装置的结构框图。如图所示，第二装置 200包括检测装置 201、信标信道确定装置 202以及第二发送装置 203。第二装置 200典型地设置于通信组的设备中，例如设备 21、设备 22之中。不失一般性地，以下将以通信组 20中的设备 21中设置的第二发送装置 200为例进行说明。 Figure 6 illustrates a wireless distributed communication network in accordance with one embodiment of the present invention. A block diagram of a second device for implementing spectrum sharing in a device of a communication group. As shown, the second device 200 includes a detecting device 201, a beacon channel determining device 202, and a second transmitting device 203. The second device 200 is typically disposed in a device of the communication group, such as device 21, device 22. Without loss of generality, the second transmitting device 200 provided in the device 21 in the communication group 20 will be described below as an example.

该实施例中执行的操作的前提是频谱共享社区已经建立，用于频谱共享接入管理的媒体接入控制帧已经在空中传播。 The operation performed in this embodiment is premised on the fact that the spectrum sharing community has been established, and the medium access control frame for spectrum sharing access management has been propagated in the air.

设备 21中的检测装置 201用于检测媒体接入控制帧的帧控制报头，所述帧控制报头中包括用于指示媒体接入控制帧的帧结构的信息以及用于指示调制编码方式的信息。检测到用于频谱共享接入管理的该媒体接入控制帧的帧控制报头之后，设备 21就可以根据用于指示帧结构的信息对该帧进行定位与同步，并可以根据用于指示调制编码方式的信息对该帧作出响应。 The detecting means 201 in the device 21 is configured to detect a frame control header of the medium access control frame, and the frame control header includes information for indicating a frame structure of the medium access control frame and information for indicating a modulation and coding mode. After detecting the frame control header of the medium access control frame for spectrum sharing access management, the device 21 may locate and synchronize the frame according to the information used to indicate the frame structure, and may be used to indicate modulation coding. The way the information responds to the frame.

然后，设备 21 中的信标信道确定装置 202用于根据指示媒体接入控制帧的帧结构的信息，检测帧控制报头之后的多个用于发送接入信标的信标信道，并选择一个空闲的信标信道。这里的帧结构可以例如图 2所示，设备 21检测信标信道（时隙） B1至 Bn，并选择一个空闲的信标信道，例如信标信道 B2。 Then, the beacon channel determining means 202 in the device 21 is configured to detect, according to the information indicating the frame structure of the medium access control frame, a plurality of beacon channels for transmitting the access beacon after the frame control header, and select an idle Beacon channel. The frame structure here can be, for example, as shown in Fig. 2, the device 21 detects the beacon channels (time slots) B1 to Bn, and selects an idle beacon channel, such as the beacon channel B2.

设备 21中的第二发送装置 203用于在随后的至少一个媒体接入控制帧的周期内，按照所述编码调制方式，发送帧控制报头，在所选择的信标信道发送信标，并在该信标信道之后与之相对应的信道执行频谱共享策略。具体地，从接下来的一个媒体接入控制帧开始，设备 21中的第二发送装置 203将根据所检测到的帧控制报头来同步地发送帧控制报头；在信标信道 B2发送信标，以宣示通信组 20对相应资源的占用；并在信道 P2中执行通信组 20的频谱共享策略。这样的操作将在至少一个媒体接入控制帧中持续。该频谱共享社区中的各通信组在每一个媒体接入控制帧的周期内分布地执行一次优化频谱共享方案的迭代过程，直到该频谱共享社区中的各通信组就共享该频带的资源分配达成一致。各通信组分别发送帧控制报头可以使得该频谱共享社区的覆盖范围得以增大。 The second sending device 203 in the device 21 is configured to send a frame control header, send a beacon on the selected beacon channel, and send a beacon on the selected beacon channel in a period of the subsequent at least one medium access control frame. The channel corresponding to the beacon channel is followed by a spectrum sharing strategy. Specifically, starting from the next media access control frame, the second transmitting device 203 in the device 21 will synchronously transmit the frame control header according to the detected frame control header; the beacon is transmitted on the beacon channel B2, To declare the occupation of the corresponding resources by the communication group 20; and perform the spectrum sharing strategy of the communication group 20 in the channel P2. Such operations will continue in at least one media access control frame. Each communication group in the spectrum sharing community performs an iterative process of optimizing the spectrum sharing scheme distributedly in a period of each medium access control frame until each communication group in the spectrum sharing community shares the resource allocation of the frequency band. Consistent. Each communication group separately sends a frame control header In order to increase the coverage of the spectrum sharing community.

需要理解的是，上述操作通常是由一个通信组中的发送端中的第二装置 200 来执行的。但是也不排除这些操作由一个通信组中的接收端中的第二装置 200 来执行，或者由发送端、接收端中的第二装置 200分别执行其中的部分操作。 It is to be understood that the above operations are generally performed by the second device 200 of the transmitting terminals in a communication group. However, it is not excluded that these operations are performed by the second device 200 in the receiving end of a communication group, or the partial operations of the second device 200 of the transmitting end and the receiving end are respectively performed.

根据本发明的一个实施例，通信组的接入管理还包括冲突退让机制。例如，通信组 20中的设备中的信标信道确定装置 202和通信组 30中的设备中的信标信道确定装置 202选择了同一个信标信道，其各自的第二发送装置 203在同一个媒体接入控制帧开始发送信标，则通信组 20、 30的信号将发生冲突。于是，通信组 20、 30的设备中的第二装置 200可以分别延迟一段时间之后再次尝试各自的操作。所延迟的时间可以是随机的，或者根据一定的冲突避让算法来计算。 According to an embodiment of the present invention, the access management of the communication group further includes a conflict retreat mechanism. For example, the beacon channel determining means 202 in the devices in the communication group 20 and the beacon channel determining means 202 in the devices in the communication group 30 select the same beacon channel, and their respective second transmitting devices 203 are in the same When the media access control frame begins to transmit a beacon, the signals of the communication groups 20, 30 will collide. Thus, the second device 200 of the devices of the communication groups 20, 30 can delay the respective operations again after a delay. The delayed time can be random or calculated according to a certain collision avoidance algorithm.

信标信道确定装置 202 需要根据预定规则来选择空闲的信标信道，可选地预定规则包括以下几种： The beacon channel determining means 202 needs to select an idle beacon channel according to a predetermined rule, and optionally the predetermined rules include the following:

第二种规则是按照预定顺序，选择所有空闲信标信道中的第一个。具体地，例如所有信标信道 B1至 Bn均空闲，可以按照正常顺序选择第一个信标信道 B 1 , 或者也可以按照倒序选择第一个信标信道 Bn。 The second rule is to select the first of all idle beacon channels in a predetermined order. Specifically, for example, all of the beacon channels B1 to Bn are idle, the first beacon channel B 1 may be selected in the normal order, or the first beacon channel Bn may be selected in reverse order.

第三种规则是选择与该通信组的优先级相匹配或最接近的空闲信标信道。如果一个空闲信标信道的优先级与一个通信组的优先级相匹配，则该通信组选择该信标信道。如果没有与该通信组优先级匹配的空闲信标信道，则该通信组选择一个与其优先级最接近的空闲信标信道。具体的预定规则还可以是上述几种规则的组合，例如：根据通信组接入时间的顺序以及优先级匹配原则来选择空闲信标信道。 The third rule is to select an idle beacon channel that matches or is closest to the priority of the communication group. If the priority of an idle beacon channel matches the priority of a communication group, the communication group selects the beacon channel. If there is no idle beacon channel that matches the priority of the communication group, then the communication group selects an idle beacon channel that is closest to its priority. The specific predetermined rule may also be a combination of the above several rules, for example: selecting an idle beacon channel according to the order of the communication group access time and the priority matching principle.

以下是根据本发明一个实施例的，三个通信组接入频谱共享社区的过程。在该实施例中，用于频谱共享接入管理的媒体接入控制帧包括三个信标信道（时隙） Bl、 B2和 B3 , 优先级分别为第一级、第一级和第二级。三个通信组 10、 20和 30的优先级分别为第一级、第二级和第一级，先后加入该频谱共享社区。首先，通信组 10确定了所用的频带并发出第一个媒体接入控制帧。根据接入时间顺序以及优先级匹配原则，通信组 10选择信标信道 B1来发送信标，该信标包括通信组 10的接入时间和优先级信息。随后，通信组 20检测到帧控制报头并试图加入该频谱共享社区。此时还有两个空闲信标信道 B2和 B3，其中信道 B3的优先级与通信组 20相符，于是，通信组 20选择在信道 B3发送信标，该信标包括通信组 20的接入时间和优先级信息。再随后，通信组 30检测到帧控制报头并试图加入该频谱共享社区。此时仅有一个空闲信标信道 B2 , 于是，通信组 30 选择在信道 B2发送信标，该信标包括通信组 30的接入时间和优先级信息。需要理解的是，通常而言，每当频谱共享社区内的通信组发生变化时，例如有新的通信组加入该社区或者有通信组退出该社区，各通信组会同步地启动优化频谱共享方案的迭代过程。频谱共享社区内通信组的变化可以通过侦测信标信道来确定。 The following is a process in which three communication groups access a spectrum sharing community in accordance with one embodiment of the present invention. In this embodiment, the medium access control frame used for spectrum sharing access management includes three beacon channels (time slots) Bl, B2, and B3, and the priorities are first level, first level, and second level, respectively. . The three communication groups 10, 20, and 30 have the priorities of the first level, the second level, and the first level, respectively, and join the spectrum sharing community. First, communication group 10 determines the frequency band used and issues the first medium access control frame. Based on the access time sequence and the priority matching principle, the communication group 10 selects the beacon channel B1 to transmit a beacon, the beacon including the access time and priority information of the communication group 10. Subsequently, the communication group 20 detects the frame control header and attempts to join the spectrum sharing community. There are also two idle beacon channels B2 and B3, wherein the priority of channel B3 coincides with communication group 20, and then communication group 20 selects to transmit a beacon on channel B3, the beacon including the access time of communication group 20. And priority information. Then, the communication group 30 detects the frame control header and attempts to join the spectrum sharing community. There is only one idle beacon channel B2 at this time, and then the communication group 30 selects to transmit a beacon on channel B2, the beacon including the access time and priority information of the communication group 30. It should be understood that, generally speaking, whenever a communication group in a spectrum sharing community changes, for example, a new communication group joins the community or a communication group exits the community, each communication group simultaneously initiates an optimized spectrum sharing scheme. Iterative process. Changes in the communication group within the spectrum sharing community can be determined by detecting the beacon channel.

本发明中所称的装置，可以由软件功能模块实现，也可以由硬件模块实现，还可以由软硬件的结合来实现。 The device referred to in the present invention may be implemented by a software function module, may also be implemented by a hardware module, or may be implemented by a combination of hardware and software.

本领域技术人员应能理解，上述实施例均是示例性而非限制性益效果。本领域技术人员在研究附图、说明书及权利要求书的基础上，应能理解并实现所揭示的实施例的其他变化的实施例。在权利要求书中，术语 "包括，，并不排除其他装置或步骤；不定冠词 "一个" 不排除多个；术语 "第一" 、 "第二" 用于标示名称而非用于表示任何特定的顺序。权利要求中的任何附图标记均不应被理解为对保护范围的限制。权利要求中出现的多个部分的功能可以由一个单独的硬件或软件模块来实现。某些技术特征出现在不同的从属权利要求中并不意味着不能将这些技术特征进行组合以取得有益效果。 Those skilled in the art will appreciate that the above-described embodiments are illustrative and not limiting. Other variations of the disclosed embodiments can be understood and effected by those skilled in the <RTIgt; In the claims, the <RTIgt;"comprising" does not exclude other means or steps; the indefinite article "a" does not exclude a plurality. The terms "first" and "second" are used to indicate the name and not to indicate any Specific order. Any reference signs in the claims should not be construed as Restrictions on the scope of protection. The functions of the various parts appearing in the claims can be implemented by a single hardware or software module. The mere fact that certain features are recited in the claims

Claims

权利要求书 Claim

1. 一种用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的方法，该通信组包括两个通信终端，所述方法包括以下步骤： A method for implementing spectrum sharing in a device of a communication group for a wireless distributed communication network, the communication group comprising two communication terminals, the method comprising the steps of:

a. 侦测无线信号，并确定一个空闲的频带； a. detecting a wireless signal and determining an idle frequency band;

b. 在所述频带上发送用于频谱共享接入管理的媒体接入控制帧的帧控制报头，所述媒体接入控制帧依次包括：帧控制报头，多个用于发送接入信标的信标信道，与所述信标信道相对应的多个用于执行频谱共享策略的信道。 b. transmitting, in the frequency band, a frame control header of a medium access control frame for spectrum sharing access management, where the medium access control frame includes: a frame control header, and a plurality of letters for sending an access beacon a channel, a plurality of channels corresponding to the beacon channel for performing a spectrum sharing policy.

2. 一种用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的第一装置，该通信组包括两个通信终端，所述第一装置包括： 2. A first device for implementing spectrum sharing in a device of a communication group for a wireless distributed communication network, the communication group comprising two communication terminals, the first device comprising:

频带确定装置，用于侦测无线信号，并确定一个空闲的频带；第一发送装置，用于在所述频带上发送用于频谱共享接入管理的媒体接入控制帧的帧控制报头，所述媒体接入控制帧依次包括：帧控制报头，多个用于发送接入信标的信标信道，与所述信标信道相对应的多个用于执行频谱共享策略的信道。 a frequency band determining device, configured to detect a wireless signal, and determine an idle frequency band; a first transmitting device, configured to send a frame control header of a medium access control frame for spectrum sharing access management on the frequency band, The medium access control frame includes: a frame control header, a plurality of beacon channels for transmitting an access beacon, and a plurality of channels for performing a spectrum sharing policy corresponding to the beacon channel.

3. 一种用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的方法，该通信组包括两个通信终端，所述方法包括以下步骤： 3. A method of implementing spectrum sharing in a device of a communication group for a wireless distributed communication network, the communication group comprising two communication terminals, the method comprising the steps of:

A. 检测媒体接入控制帧的帧控制报头，所述帧控制报头中包括用于指示媒体接入控制帧的帧结构的信息以及用于指示调制编码方式的信息； A. Detecting a frame control header of the medium access control frame, where the frame control header includes information indicating a frame structure of the medium access control frame and information indicating a modulation and coding mode;

B. 根据所述指示媒体接入控制帧的帧结构的信息，检测帧控制报头之后的多个用于发送接入信标的信标信道，并选择一个空闲的信标信道； B. detecting, according to the information indicating a frame structure of the medium access control frame, a plurality of beacon channels for transmitting an access beacon after the frame control header, and selecting an idle beacon channel;

C. 在随后的至少一个媒体接入控制帧的周期内，按照所述编码调制方式，发送帧控制报头，在所选择的信标信道发送信标，并在该信标信道之后与之相对应的信道执行频谱共享策略。 C. transmitting, within the period of the subsequent at least one medium access control frame, a frame control header according to the coded modulation mode, transmitting a beacon on the selected beacon channel, and The channel corresponding to the beacon channel is followed by a spectrum sharing strategy.

4. 根据权利要求 3所述的方法，其特征在于，所述步骤 B中，是根据预定规则来选择空闲的信标信道；所述预定规则包括以下各项中的至少一项： The method according to claim 3, wherein in the step B, the idle beacon channel is selected according to a predetermined rule; the predetermined rule includes at least one of the following items:

- 选择与所述通信组的优先级相匹配或最接近的空闲信标信道； - selecting an idle beacon channel that matches or is closest to the priority of the communication group;

- 根据预定时序，选择所有空闲信标信道中的第一个； - selecting the first of all idle beacon channels according to a predetermined timing;

- 随机地选择一个空闲信标信道。 - Randomly select an idle beacon channel.

5. 根据权利要求 3所述的方法，其特征在于，所述方法还包括步骤： 5. The method according to claim 3, wherein the method further comprises the steps of:

- 如果发送的信标发生冲突，延迟一段时间后再次尝试步骤8、步骤（：。 - If the beacons that are sent collide, delay step 8 and try again after a delay.

6. 根据权利要求 3所述的方法，其特征在于，所述信标包括时间戳。 6. The method of claim 3 wherein the beacon comprises a time stamp.

7. 根据权利要求 3所述的方法，其特征在于，所述通信网络包括无线区域网络。 7. The method of claim 3, wherein the communication network comprises a wireless area network.

8. 一种用于无线分布式通信网络的一个通信组的一个设备中的实现频谱共享的第二装置，该通信组包括两个通信终端，所述第二装置包括： A second device for implementing spectrum sharing in a device of a communication group for a wireless distributed communication network, the communication group comprising two communication terminals, the second device comprising:

检测装置，用于检测媒体接入控制帧的帧控制报头，所述帧控制报头中包括用于指示媒体接入控制帧的帧结构的信息以及用于指示调制编码方式的信息； a detecting device, configured to detect a frame control header of the medium access control frame, where the frame control header includes information for indicating a frame structure of the medium access control frame and information for indicating a modulation and coding mode;

信标信道确定装置，用于根据所述指示媒体接入控制帧的帧结构的信息，检测帧控制报头之后的多个用于发送接入信标的信标信道，并选择一个空闲的信标信道； a beacon channel determining apparatus, configured to detect, according to the information indicating a frame structure of the medium access control frame, a plurality of beacon channels for transmitting an access beacon after the frame control header, and select an idle beacon channel ;

第二发送装置，用于在随后的至少一个媒体接入控制帧的周期内，按照所述编码调制方式，发送帧控制报头，在所选择的信标信道发送信标，并在该信标信道之后与之相对应的信道执行频谱共享策略。 a second sending means, configured to send a frame control header, transmit a beacon on the selected beacon channel, and transmit the beacon on the selected beacon channel in a period of the subsequent at least one medium access control frame The channel corresponding to it then performs a spectrum sharing strategy.

9. 根据权利要求 8所述的第二装置，其特征在于，所述信标信道确定装置根据预定规则来选择空闲的信标信道；所述预定规则包括以下各项中的至少一项： 9. The second device according to claim 8, wherein the beacon letter The channel determining means selects an idle beacon channel according to a predetermined rule; the predetermined rule includes at least one of the following:

- 选择与所述通信组的优先级相匹配或最接近的空闲信标信道； - 根据预定时序，选择所有空闲信标信道中的第一个； - selecting an idle beacon channel that matches or is closest to the priority of the communication group; - selecting a first one of all idle beacon channels according to a predetermined timing;

10. 根据权利要求 8所述的方法，其特征在于，所述第二装置还用于如果发送的信标发生冲突，延迟一段时间后再由信标信道确定装置、第二发送装置尝试各自操作。 The method according to claim 8, wherein the second device is further configured to: if the transmitted beacons collide, delay the time period, and then the beacon channel determining device and the second transmitting device try to operate the respective operations. .

1 1. 根据权利要求 8所述的第二装置，其特征在于，所述信标包括时间戳。 1 . The second device according to claim 8, wherein the beacon comprises a time stamp.

12. 根据权利要求 8所述的第二装置，其特征在于，所述通信网络包括无线区域网络。 12. The second device of claim 8, wherein the communication network comprises a wireless area network.