WO2012027927A1 - 资源分配方法及认知无线*** - Google Patents
资源分配方法及认知无线*** Download PDFInfo
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- WO2012027927A1 WO2012027927A1 PCT/CN2010/078652 CN2010078652W WO2012027927A1 WO 2012027927 A1 WO2012027927 A1 WO 2012027927A1 CN 2010078652 W CN2010078652 W CN 2010078652W WO 2012027927 A1 WO2012027927 A1 WO 2012027927A1
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- backhaul link
- wireless system
- cognitive wireless
- channel information
- blank channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Definitions
- the present invention relates to the field of communications, and in particular to a resource allocation method and a cognitive wireless system.
- the access points are as follows: Node Base station, referred to as eNB, Relay, Femto NB, Pico NB and Home Node Base station. Some of these access points can be directly connected. Direct access to the gateway (Gateway, GW for short), for access points that can be directly connected, the link between them is called the backhaul link.
- the backhaul link may be a wireless link in some scenarios in LTE/LTE-A, for example: In a remote area, the cost is too high if a wired connection is deployed; the coverage of the temporary hotspot area cannot be estimated and wired in advance. Coverage; During the disaster relief period, wired communication is interrupted, the wireless link can provide services quickly; the access node in the nomadic state cannot be covered by cable.
- the wireless backhaul link is usually allocated to the spectrum of LTE/LTE-A for wireless backhaul link connection according to the provisions of the spectrum management organization. However, since the spectrum obtained by each operator for LTE/LTE-A is very limited, this method is bound to cause loss of the capacity and quality of the access link.
- a resource allocation method includes: a cognitive wireless system acquires available television blank channel information; a cognitive wireless system determines allocation of resources of a backhaul link between a base station and an access point; the cognitive wireless system is available according to TV blank channel information, which allocates resources of the backhaul link.
- the method further includes: the cognitive wireless system determines that there is an authorization system to be accessed, where the authorization system to be accessed uses the backhaul link currently used TV blank channel information. Further, the cognitive wireless system determines that the presence/authorization system comprises one of: the cognitive wireless system receives a notification message from a database containing television blank channel information, wherein the notification message is used to notify the presence authorization system; the cognitive wireless system Through the perception of itself, it is determined that there is an authorization system. Further, before the cognitive wireless system determines to allocate resources of the backhaul link, the method further includes: the cognitive wireless system detecting that the quality information of the backhaul link does not satisfy the wireless communication requirement.
- obtaining, by the cognitive wireless system, available television blank channel information comprises: the cognitive wireless system acquiring available television blank channel information by an external resource entity, wherein the external resource entity comprises a database containing blank television spectrum information. Further, the cognitive wireless system allocates resources of the backhaul link according to the available television blank channel information, including: the cognitive wireless system sends the available television blank channel information to the base station in the backhaul link, and notifies the base station to perform the resource Allocation; the base station allocates resources according to available television blank channel information; the base station notifies the access point in the backhaul link to perform parameter setting; the access point performs parameter setting, and establishes a backhaul link with the base station.
- the method further includes: the cognitive wireless system updating the current television blank channel information. Further, after the cognitive wireless system allocates the resources of the backhaul link according to the available television blank channel information, the method further includes: determining whether the cognitive wireless system's resource allocation to the backhaul link is successful; No, the cognitive radio system returns the resources of the backhaul link to the licensed spectrum used by the backhaul link before the resource allocation, wherein the licensed spectrum is the spectrum carried out by the initial powering of the backhaul link.
- a cognitive wireless system is provided.
- the cognitive wireless system includes: an obtaining module, configured to acquire available television blank channel information; a first determining module, configured to determine a resource allocation of a backhaul link between the base station and the access point; , for allocating resources of the backhaul link according to available television blank channel information. Further, the cognitive wireless system further includes: a second determining module, configured to determine that there is an authorization system to be accessed, wherein the authorization system uses the television blank channel information currently used by the backhaul link; and the detecting module is configured to detect the backhaul chain Road quality of service information.
- the television blank channel information is used for the backhaul link, thereby increasing the available resources of the backhaul link, and solving the related art, the spectrum of the backhaul link in LTE/LTE-A is very limited and affects the backhaul link.
- the capacity and quality of service issues ensure the capacity and quality of the backhaul link.
- FIG. 1 is a schematic diagram of an application scenario according to the related art
- FIG. 2 is a flowchart of a resource allocation method according to an embodiment of the present invention
- FIG. 3 is a resource allocation according to a preferred embodiment 1 of the present invention.
- FIG. 4 is an interaction flowchart of a resource allocation method (on-demand plus sensing mode) according to a preferred embodiment 2 of the present invention
- FIG. 5 is an interaction diagram according to an embodiment of the present invention.
- FIG. 6 is a block diagram showing the structure of a cognitive wireless system in accordance with a preferred embodiment of the present invention.
- TVDB It is responsible for data acquisition, management and routine maintenance by TV operators or third-party operators.
- the content of the TV database is the use of the TV spectrum (channel) of the TV operator locally or in the local thousands of regions, ie the spectrum (channel) status being used, including but not limited to: channel number, bandwidth, possible Duration, D/U requirements (R D/U is the power ratio of the wanted signal and the interference signal expected by the TV receiver;), spectrum mask, coverage and isolation band, etc.
- Unused spectrum channel Status, including but not limited to: channel number, working bandwidth, coverage, possible duration, etc. 2.
- Central control point Its role is 1 responsible for the management of the wireless communication network, for example, the management and allocation of spectrum resources, including the aggregated sensing data (from BS and AP), Data fusion (including reasoning, decision, etc.), obtaining blank spectrum resource information, and finally obtaining real blank and available spectrum resources according to the blank and available spectrum information from the TVDB; 2 and responsible for representing the wireless communication system and the TV Database communication to obtain the required TV white space (TVWS, television white space)cken.
- the physical connection between the central control node and the TV database is wired or wirelessly connected, and the logical transport protocol can communicate using, for example, the IP protocol.
- Base station The BS can be directly connected to the CCP.
- the functions of the BS include but are not limited to: 1 changing or adjusting parameters of the wireless communication technology, for example, modulation type, transmission power; 2 managing and maintaining the working spectrum, For example, working frequency and frequency band; 3 responsible for communication with the central control node; 4 with spectrum sensing function; 5 with sensing data processing capabilities, such as sensing data (from its own sensing data and AP reporting sentiment data), Fusion processing.
- the AP here may be a hot spot, a home base station, a Femto BS, a Pico BS, or a relay.
- the AP aggregates user information and communicates with the BS (constituting a backhaul link), and the AP and the user exchange information with each other.
- the coverage of the AP is significantly reduced compared to the BS.
- the AP can complete: 1 change or adjust the parameters of the wireless communication technology, for example, modulation type, transmit power; 2 adjust the working frequency and frequency band; 3 complete the two-way communication with the user and the BS.
- the content of the TV blank channel information includes but is not limited to: 1 available channels (including working frequency and bandwidth), note that the bandwidth here can be continuous or discontinuous; 2 coverage (referring to the channel can be The geographical area of work, because blank channels always have certain geographical restrictions); 3 spectrum information of the channel adjacent to the channel, which may include but is not limited to: R D/U (the power ratio of the wanted signal and the interference signal expected by the television receiver), the transmission power, and the spectrum template; 4 effective use of the channel time.
- the cognitive radio system with cognitive radio capability includes network elements including but not limited to: CCP, BS, and AP. The embodiment of the invention provides a resource allocation method. FIG.
- Step S202 The cognitive wireless system acquires available television blank channel information.
- Step S204 the cognitive wireless system determines to allocate resources of the backhaul link between the base station and the access point.
- Step S206 the cognitive wireless system allocates resources of the backhaul link according to available television blank channel information.
- the spectrum of the backhaul link in LTE/LTE-A is very limited, which affects the capacity and quality of service of the backhaul link.
- the TV blank channel information is used for the backhaul link, thereby increasing the available resources of the backhaul link, thereby ensuring the capacity and quality of the backhaul link.
- the Cognitive Radio System (CRS) in the embodiment of the present invention is a wireless communication system having the capability of cognitive white space spectrum and the ability to adjust its own parameters.
- the cognitive wireless system determines that there is an authorization system to be accessed, wherein the authorization system to be accessed uses the television blank channel information currently used by the backhaul link. .
- the backhaul link In the process that the backhaul link is using the television blank channel information, if the original authorization system assigned to use the television blank channel information is ready to access, the backhaul link needs to be relegated to ensure that the authorized system has priority assigned to the The television blank channel information of the authorization system, the preferred embodiment describes the process of this concession. That is, the backhaul link no longer uses the television blank channel information, but instead uses other available television blank channel information or returns to the authorized spectrum of the backhaul link initial power up. Therefore, the preferred embodiment can ensure the normal use of the authorization system to which the television blank channel information is allocated, thereby maximizing the utilization of the television blank channel information.
- the cognitive wireless system determines that the presence authorization system comprises one of: the cognitive wireless system receives a notification message from a database containing television blank channel information, wherein the notification message is used to notify the presence of the authorization system; the cognitive wireless system passes through itself Perceive, determine the presence of an authorization system.
- the cognitive wireless system in the preferred embodiment determines that the manner in which the authorization system is present is simple and reliable. It should be noted that the cognitive wireless system may also determine the presence/authorization system by other means.
- the cognitive wireless system detects that the quality of service information of the backhaul link does not satisfy the wireless communication requirement before the cognitive wireless system determines to allocate resources for the backhaul link. The preferred embodiment describes that the cognitive wireless system actively determines the allocation of resources for the backhaul link.
- the cognitive wireless system acquiring available television blank channel information comprises: the cognitive wireless system acquiring available television blank channel information by an external resource entity, wherein the external resource entity comprises a database containing blank television spectrum information.
- the cognitive wireless system (which can be obtained by an external resource entity) can obtain available television blank channel information as follows: Notification mode, the external resource entity notifies the cognitive wireless system about the television blank channel information; the sensing mode, cognitive wireless The system obtains the television blank channel information in a perceptual manner; on-demand, the cognitive wireless system accesses an external resource entity to obtain the television blank channel information according to the need; the periodic mode, the cognitive wireless system and the external resource entity periodically information Interactively obtain TV blank channel information. It should be noted that the cognitive wireless system can obtain the television blank channel information by one or more of the above manners.
- notification mode plus sensing mode that is, when the database is authorized or the system has been withdrawn, the database notifies the cognitive wireless system about the television blank channel information, and after the cognitive wireless system receives the information,
- the corresponding TV blank channel information channel is perceived to determine the blank and can be Television blank channel information used; on-demand plus perceptual, ie, when the cognitive radio system requires additional spectrum resources for some reason (such as, but not limited to, QoS for communication, temporarily increased access points),
- the cognitive wireless system actively accesses the TVDB to obtain television blank channel information.
- the TVDB only contains information about the use of the television channel by the authorization system (television system) and does not cover information used by other television spectrums, such as, but not limited to, wireless microphones using television spectrum information. Therefore, in order to ensure that the TV blank channel information is indeed available (blank and available), it is necessary for the cognitive wireless system to notify the subordinate nodes (e.g., base stations and access points) for spectrum sensing to determine the true blank and available television blank channel information.
- the subordinate nodes e.g., base stations and access points
- the cognitive wireless system allocates resources of the backhaul link according to the available television blank channel information, including: the cognitive wireless system sends the available television blank channel information to the base station in the backhaul link, and notifies the base station to perform the resource
- the base station allocates resources according to available television blank channel information; the base station notifies the access point in the backhaul link to perform parameter setting; the access point performs parameter setting, and establishes a backhaul link with the base station.
- the cognitive wireless system can notify the base station of the obtained operatively available television blank channel information by the following method.
- the base station when the base station needs the television blank channel information, the base station sends a message of the spectrum resource request to the cognitive wireless system, and the cognitive wireless system accesses the TVDB after receiving the message to obtain the television blank channel information; the cognitive wireless system is After obtaining the television blank channel information resource, the system sends a response message to the base station, where the message includes the television blank channel information.
- the TVDB notifies the cognitive wireless system about the spectrum change; the cognitive wireless system then notifies the base station of the corresponding TV blank channel information spectrum information.
- the TVDB periodically notifies the cognitive radio system about the spectrum information, and the cognitive radio system also periodically notifies the base station of the corresponding TV blank channel information spectrum information.
- the base station re-allocates the spectrum resources according to the obtained television blank channel information and its own business conditions. This may involve power control (thousands of special control), RAT (Radio Access Technology) parameter adjustment.
- the base station notifies the corresponding access point to perform parameter setting and power control (interference control;). Both upstream and downstream should be considered for power control.
- the base station considers the base station's influence on the adjacent channel television system according to the R D/U of the adjacent channel, the transmit power, and the spectrum mask, and its own interference redundancy (maximum allowable power of 4 4). Television system It has a special impact on the adjacent channel wireless communication system (including base stations, access points and corresponding users).
- the TV blank channel information that is actually available to the base station and the access point can be obtained only if both conditions are met.
- the cognitive wireless system updates the current television blank channel information.
- the cognitive wireless system allocates the resources of the backhaul link according to the available television blank channel information, it is determined whether the cognitive wireless system's resource allocation to the backhaul link is successful; if the determination result is no, the cognitive wireless The system returns the resources of the backhaul link to the licensed spectrum used by the backhaul link before the resource allocation, where the licensed spectrum is the spectrum carried by the backhaul link initial power-on.
- the base station obtains blank and available television blank channel information by accessing the database and sensing, and establishes a backhaul link by using the television blank channel information. It has the following technical effects:
- the wireless backhaul link can be dynamically established without the need to pre-lay the cable in advance (the location where the cable is laid may not be known in advance), saving manpower and material costs.
- Step S302 maintaining candidate spectrum resources.
- the TVDB provides an initial candidate set of available spectrum resources.
- the candidate set is jointly maintained by each network element, and the CCP aggregates the sensing information from the Node B/BS and the authorized service information from the TVDB, and synthesizes the information to generate available spectrum resources, and generates candidate spectrums that are available and blank for each BS. ) Set.
- the TVDB updates (adjusts) the information about the TVWS.
- the TVDB notifies the CCP about the TVWS information.
- the content of TVWS includes but is not limited to: 1 available channels (including working frequency and bandwidth), note that the bandwidth here can be continuous or discontinuous; 2 coverage (refers to the geographical area where the channel can work, because the total number of blank channels 3) There are certain geographical restrictions.
- the spectrum information of the adjacent channel of the channel may include but is not limited to: R D/U (the power ratio of the wanted signal and the interference signal expected by the television receiver), the transmission power, and Spectrum template; 4 effective use time of the channel.
- Step 4 gathers S308, BS and AP for spectrum sensing.
- the spectrum to be perceived may be the entire television spectrum (the preferred embodiment shows the perception of the entire television spectrum by the BS and the AP;), or it may be the specific television spectrum that the CCP informs the BS.
- the CCP first sends a sensing request message to the BS (message includes but not limited to the frequency and frequency band information to be perceived), the BS responds to the CCP (sends a response message to the CCP), and sends an AP to the AP.
- the BS and the AP perform the sensing, and the sensing result is 4 CCP (the AP reports through the BS).
- Step S312 the CCP determines the blank and available TVWS channel according to the information reported by the BS and the AP, the TVWS information from the TVDB, and the spectrum requirement of the AP (the channel may be one or more, and may be Continuous can also be discontinuous).
- the CCP can use a method including, but not limited to, game theory to obtain a blank and available TVWS channel.
- step S314 the CCP initiates reconfiguration. After obtaining the blank and available TVWS channel, the CCP issues a reconfiguration command to the BS.
- the instructions include, but are not limited to, frequency and channel (bandwidth).
- Step S316 the BS issues a reconfiguration command to the AP.
- the instructions include but are not limited to frequency and channel
- Step S3108 the BS performs spectrum switching.
- the BS switches to the new TVWS.
- Step 4 gathers S320, and the AP accesses the BS after switching to the new TVWS.
- the BS reports the resource reconfiguration to the CCP 4. This includes the case where the BS and/or AP reconfiguration succeeds, and the BS and/or AP reconfiguration is unsuccessful. Here H did not re-match successfully.
- Step S324 the CCP sends a resource allocation adjustment response to the BS, and confirms that the CCP already knows the BS reconfiguration condition.
- the detailed process of the preferred embodiment 2 primary user protection is shown in FIG.
- Step S402 maintaining candidate spectrum resources.
- the TVDB provides an initial candidate set of available spectrum resources.
- the candidate set is jointly maintained by each network element, and the CCP aggregates the sensing information from the Node B/BS and the authorized service information from the TVDB, and synthesizes the information to generate available spectrum resources, and generates candidate spectrums that are available and blank for each BS. )set.
- the TVDB may also update (adjust) information about the TVWS.
- Step S404 the CCP sends a TVWS Spectrum Resource Request message to the TVDB.
- the CCP requires additional spectrum resources for some reason (such as, but not limited to, QoS for communication, temporarily added AP), the CCP actively accesses the TVDB to obtain TVWS information.
- the TVDB responds to the CCP related TVWS information.
- the content of TVWS includes but is not limited to: 1 available channels (including working frequency and bandwidth), note that the bandwidth here can be continuous or discontinuous; 2 coverage (refers to the geographical area where the channel can work, because the total number of blank channels 3) There are certain geographical restrictions.
- the spectrum information of the adjacent channel of the channel may include but is not limited to: R D/U (the power ratio of the wanted signal and the interference signal expected by the television receiver), the transmission power, and Spectrum template; 4 effective use time of the channel.
- R D/U the power ratio of the wanted signal and the interference signal expected by the television receiver
- Spectrum template 4 effective use time of the channel.
- the spectrum to be perceived may be the entire television spectrum (the preferred embodiment 2 is that the BS and the AP perform the perception of the entire television spectrum;), or the CCP may notify the BS of the specific television spectrum.
- the CCP first sends a sensing request message to the BS (message includes but not limited to frequency and frequency band information to be perceived), and the BS responds to the CCP (Requests a Response Message to the CCP) and sends an AP to the AP.
- the BS and the AP perform the sensing, and the sensing result is 4 CCP (the AP reports through the BS).
- Step S412 the CCP receives TVWS from the TVDB according to the sensing information reported by the BS and the AP.
- the information as well as its own spectrum requirements, determine the blank and available TVWS channels (the channels can be one or more, which can be continuous or discontinuous).
- the CCP can use a method including, but not limited to, game theory to obtain a blank and available TVWS channel.
- step S414 the CCP initiates reconfiguration. After obtaining the blank and available TVWS channel, the CCP issues a reconfiguration command to the BS.
- the instructions include, but are not limited to, frequency and channel (bandwidth).
- the instructions include but are not limited to frequency and channel
- the BS switches to the new TVWS.
- the AP accesses the BS.
- Step S422 the BS reports the resource reconfiguration to the CCP 4. This includes BS and / or AP reconfiguration success, BS and / or AP reconfiguration unsuccessful. Here H did not re-match successfully.
- Step S424 the CCP sends a resource allocation adjustment response to the BS, and confirms that the CCP already knows the BS reconfiguration condition.
- the CCP discovered the changes of TVWS, and there are connections for BS and AP. First, the notification is sent, all the connections of the BS and the AP are notified to return to the original working link, and then the BS re-takes the process of resource application; the CCP knows the change.
- the connection used by TVWS which is saved about the connection and
- FIG. 5 is a structural block diagram of a cognitive wireless system according to an embodiment of the present invention, including an acquisition module 52, a first determination module 54, and an assignment module 56.
- the obtaining module 52 is configured to obtain available television blank channel information; the first determining module 54 is configured to determine a resource for the backhaul link between the base station and the access point; the allocating module 56 is connected to the obtaining module 52 and The first determining module 54 is configured to allocate the resources of the backhaul link determined by the first determining module 54 according to the available television blank channel information acquired by the obtaining module 52.
- 6 is a block diagram showing the structure of a cognitive wireless system in accordance with a preferred embodiment of the present invention.
- the cognitive wireless system further includes a second determining module 62 and a detecting module 64.
- the structure is described in detail below.
- the second determining module 62 is configured to determine that there is an authorization system to be accessed, where the authorization system uses the television blank channel information currently used by the backhaul link.
- the detecting module 64 is configured to detect quality of service information of the backhaul link.
- the available resources of the backhaul link are increased, and the spectrum of the backhaul link in the LTE/LTE-A in the related art is very limited, which affects the capacity of the backhaul link and The quality of service issues, in turn, guarantees the capacity and quality of the backhaul link.
- the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
- the invention is not limited to any specific combination of hardware and software.
- the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.
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Abstract
本发明公开了一种资源分配方法及***,该方法包括认知无线***获取可用的电视空白频道信息;认知无线***确定对基站和接入点之间的回程链路的资源进行分配;认知无线***根据可用的电视空白频道信息,对回程链路的资源进行分配。本发明保证了回程链路的容量和服务质量。
Description
资源分配方法及 ^人知无线*** 技术领域 本发明涉及通信领域, 具体而言, 涉及一种资源分配方法及认知无线系 统。 背景技术 对于长期演进 ( Long Term Evolution , 简称为 LTE ) 或者高级长期演进 ( Long Term Evolution- Adance , 简称为 LTE-A )来说, 目前接入点有以下几 种: 增强的宏小区基站 ( enhanced Node Base station, 简称为 eNB )、 中继 ( Relay ), 啟小区基站( Femto NB ), 啟小区基站( Pico NB )和 HNB ( Home Node Base station ), 这些接入点有的能够直接相连, 有的直接接入到网关 ( Gate Way , 简称为 GW ), 对于能够直接相连的接入点来说, 他们之间的链 路我们称为回程链路 ( Backhaul link )。 回程链路在 LTE/LTE-A中的一些场景下可能是无线链路, 例如: 在偏远 的地区, 若部署有线连接则成本太高; 临时热点区域的覆盖, 无法估计其位 置并提前进行有线覆盖; 救灾时期, 有线通信中断, 无线链路可以迅速提供 服务; 游牧状态的接入节点, 无法进行有线覆盖。 在上述这些场景下, 无线回程链路通常根据频谱管理组织的规定, 将一 部分固定分配给 LTE/LTE-A的频谱, 用于无线回程链路连接。 但是, 由于每 个运营商最终所得到的用于 LTE/LTE-A的频谱是非常有限的,这种方式势必 会对接入链路的容量和艮务质量造成损失。 发明内容 针对相关技术中 LTE/LTE-A 中的回程链路的频谱非常有限从而会影响 回程链路的容量和服务质量的问题而提出本发明, 为此, 本发明的主要目的 在于提供一种资源分配方法及认知无线***, 以解决上述问题。 为了实现上述目的,才艮据本发明的一个方面,提供了一种资源分配方法。
根据本发明的资源分配方法包括: 认知无线***获取可用的电视空白频 道信息;认知无线***确定对基站和接入点之间的回程链路的资源进行分配; 认知无线***根据可用的电视空白频道信息, 对回程链路的资源进行分配。 进一步地, 在认知无线***确定对回程链路的资源进行分配之前, 上述 方法还包括: 认知无线***确定存在待接入的授权***, 其中待接入的授权 ***使用回程链路当前使用的电视空白频道信息。 进一步地, 认知无线***确定存在 ·ί受权***包括以下之一: 认知无线系 统接收到来自含有电视空白频道信息的数据库的通知消息, 其中通知消息用 于通知存在授权***; 认知无线***通过自身感知, 确定存在授权***。 进一步地, 在认知无线***确定对回程链路的资源进行分配之前, 上述 方法还包括: 认知无线***检测到回程链路的 艮务质量信息不满足无线通信 要求。 进一步地, 认知无线***获取可用的电视空白频道信息包括: 认知无线 ***通过外部资源实体获取可用的电视空白频道信息, 其中外部资源实体包 括含有空白电视频谱信息的数据库。 进一步地, 认知无线***根据可用的电视空白频道信息, 对回程链路的 资源进行分配包括: 认知无线***向回程链路中的基站发送可用的电视空白 频道信息, 并通知基站对资源进行分配;基站根据可用的电视空白频道信息, 对资源进行分配; 基站通知回程链路中的接入点进行参数设置; 接入点进行 参数设置, 并建立与基站之间的回程链路。 进一步地, 在认知无线***对回程链路的资源进行分配之后, 上述方法 还包括: 认知无线***更新当前的电视空白频道信息。 进一步地, 在认知无线***根据可用的电视空白频道信息, 对回程链路 的资源进行分配之后, 上述方法还包括: 判断认知无线***对回程链路的资 源分配是否成功; 如果判断结果为否, 认知无线***将回程链路的资源返回 到资源分配前回程链路使用的授权频谱, 其中授权频谱为回程链路初始加电 所 载的频谱。 为了实现上述目的, 根据本发明的另一个方面, 提供了一种认知无线系 统。
根据本发明的认知无线***包括: 获取模块, 用于获取可用的电视空白 频道信息; 第一确定模块, 用于确定对基站和接入点之间的回程链路的资源 进行分配; 分配模块, 用于根据可用的电视空白频道信息, 对回程链路的资 源进行分配。 进一步地, 上述认知无线***还包括: 第二确定模块, 用于确定存在待 接入的授权***,其中授权***使用回程链路当前使用的电视空白频道信息; 检测模块, 用于检测回程链路的服务质量信息。 通过本发明, 将电视空白频道信息用于回程链路, 从而增加了回程链路 的可用资源,解决了相关技术中 LTE/LTE-A中的回程链路的频谱非常有限从 而会影响回程链路的容量和服务质量的问题, 进而保证了回程链路的容量和 服务质量。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的 不当限定。 在附图中: 图 1是根据相关技术的应用场景的示意图; 图 2是才艮据本发明实施例的资源分配方法的流程图; 图 3是才艮据本发明优选实施例一的资源分配方法 (通知加感知方式) 的 交互流程图; 图 4是才艮据本发明优选实施例二的资源分配方法 (按需加感知方式) 的 交互流程图; 图 5是根据本发明实施例的认知无线***的结构框图; 图 6是根据本发明优选实施例的认知无线***的结构框图。 具体实施方式 需要说明的是, 在不冲突的情况下, 本申请中的实施例及实施例中的特 征可以相互组合。 下面将参考附图并结合实施例来详细说明本发明。
在对本发明实施例进行描述之前, 先对本发明涉及到的名词或术语进行 解释。
1、 电视数据库(TVDB, Television database ): 它由 TV运营商或第三方 运营商负责数据录用、 管理和日常维护的工作。 TV 数据库的内容为电视运 营商在本地或包含本地的若千个地区的电视频谱 (频道) 的使用情况, 即① 正在使用的频谱(频道) 状态, 包括但不限于: 频道号, 带宽, 可能的持续 时间, D/U要求 ( RD/U为电视接收机期望的有用信号和千扰信号的功率比;), 频谱掩模, 覆盖范围和隔离带等信息; ②未使用的频谱 (频道) 状态, 包括 但不限于: 频道号, 工作带宽、 覆盖范围、 可能的持续时间等信息。 2、 中心控制节点 (CCP, central control point ): 其作用为①负责对无线 通信网络的管理工作, 例如, 频谱资源的管理和分配, 包括 居汇聚的感知 数据(来自于 BS和 AP ), 进行数据融合(包括推理、 判决等), 得到空白频 谱资源信息, 并根据来自于 TVDB的关于空白且可用的频谱信息, 最后得到 真实的空白且可用的频谱资源; ②并且负责代表无线通信***和 TV database 通信, 以获取所需的电视空白频谱(TVWS , television white space )„ 中心控 制节点和电视数据库之间的物理连接通过有线或无线连接, 逻辑传输协议可 以釆用诸如 IP协议进行通信。
3、 基站(BS , base station ): BS可以直接与 CCP相连, BS的功能包括 但不限于: ①改变或调整无线通信技术的参数, 例如, 调制类型, 发射功率; ②管理和维护工作频谱, 例如, 工作频点和频段; ③负责和中心控制节点的 通信; ④具有频谱感知功能; ⑤具有感知数据处理能力, 例如 居感知数据 (来自于自身的感知数据和 AP上报的感知数据), 进行融合处理。
4、 接入点 (AP, access point ): 这里的 AP可以为热点 (hot spot ), 家 庭基站 (home BS ), Femto BS , Pico BS , 或中继 ( relay )。 AP汇聚用户信 息, 并且和 BS进行通信(构成回程链路 ), 通过 AP, 用户和 BS之间进行信 息交互。 AP的覆盖范围与 BS相比, 有较大幅度的缩减。 AP可以完成: ① 改变或调整无线通信技术的参数, 例如, 调制类型, 发射功率; ②调整工作 频点和频段; ③完成和用户以及和 BS的双向通信。 需要说明的是, 有关电视空白频道信息的内容包括但不限于: ①可用频 道(含工作频点和带宽), 注意, 这里的带宽既可连续, 也可不连续; ②覆盖 范围(指该频道可工作的地理区域,因为空白频道总是有一定的地域限制的);
③该频道邻近频道的频谱信息, 可能包括但不限于: RD/U (为电视接收机期 望的有用信号和千扰信号的功率比)、 发射功率、 和频谱模板; ④该频道的有 效利用时间。 需要说明的是, 含有认知无线电能力的认知无线***包含的网元有但不 限于: CCP、 BS和 AP。 本发明实施例提供了一种资源分配方法。 图 2是才艮据本发明实施例的资 源分配方法的流程图, 如图 2所示, 包括如下的步骤 S202至步骤 S206: 步骤 S202, 认知无线***获取可用的电视空白频道信息。 步骤 S204,认知无线***确定对基站和接入点之间的回程链路的资源进 行分配。 步骤 S206, 认知无线***根据可用的电视空白频道信息, 对回程链路的 资源进行分配。 相关技术中, LTE/LTE-A中的回程链路的频谱非常有限, 从而会影响回 程链路的容量和服务质量。 本发明实施例中, 将电视空白频道信息用于回程 链路, 从而增加了回程链路的可用资源, 进而保证了回程链路的容量和服务 质量。 需要说明的是, 本发明实施例中的认知无线*** ( Cognitive Radio System, 简称为 CRS )是一种具备认知空白频谱能力, 并具备调整自身参数 能力的无线通信***。 优选地, 在认知无线***确定对回程链路的资源进行分配之前, 认知无 线***确定存在待接入的授权***, 其中待接入的授权***使用回程链路当 前使用的电视空白频道信息。 在回程链路正在使用电视空白频道信息的过程中, 如果原来的被分配使 用该电视空白频道信息的授权***准备接入, 则该回程链路需要退让以保证 该授权***优先使用已分配给该授权***的电视空白频道信息, 本优选实施 例就描述了这个退让的过程。 即,该回程链路不再使用该电视空白频道信息, 转而使用其它可用的电视空白频道信息或返回到回程链路初始加电的授权频 谱上。 因此, 本优选实施例可以保证被分配使用该电视空白频道信息的授权 ***的正常使用, 从而最大限度的提高了电视空白频道信息的利用率。
优选地, 认知无线***确定存在授权***包括以下之一: 认知无线*** 接收到来自含有电视空白频道信息的数据库的通知消息, 其中通知消息用于 通知存在授权***; 认知无线***通过自身感知, 确定存在授权***。 本优选实施例中的认知无线***确定存在授权***的方式简单、 可靠。 需要说明的是, 认知无线***还可以通过其它方式来确定存在 ·ί受权***。 优选地, 在认知无线***确定对回程链路的资源进行分配之前, 认知无 线***检测到回程链路的服务质量信息不满足无线通信要求。 本优选实施例描述了认知无线***主动确定对回程链路的资源进行分 配。 由于回程链路的服务质量信息或者其它认知无线***的自身原因, 该回 程链路不再使用该电视空白频道信息, 转而使用其它可用的电视空白频道信 息, 从而可以保证回程链路的正常通信。 优选地, 认知无线***获取可用的电视空白频道信息包括: 认知无线系 统通过外部资源实体获取可用的电视空白频道信息, 其中外部资源实体包括 含有空白电视频谱信息的数据库。 需要说明的是, 认知无线*** (可以通过外部资源实体) 获取可用的电 视空白频道信息的方式如下: 通知方式, 外部资源实体通知认知无线***关于电视空白频道信息; 感知方式, 认知无线***通过感知的方式获取电视空白频道信息; 按需方式, 认知无线***根据需要访问外部某个资源实体获取电视空白 频道信息; 周期方式, 认知无线***和外部某个资源实体周期性地信息交互获取电 视空白频道信息。 需要说明的是, 认知无线***可以通过上述方式之中的一种或几种获得 电视空白频道信息。 例如但不限于: 通知方式加感知方式, 即, 当数据库得到授权***将要或已经退出时, 数据库通知认知无线***关于电视空白频道信息, 认知无线***在接收到这 个信息后, 还要对相应的电视空白频道信息频道进行感知, 以确定空白且可
用的电视空白频道信息; 按需方式加感知方式, 即, 当认知无线***由于某种原因 (例如但不限 于, 通信的 QoS , 临时增加的接入点), 需要额外的频谱资源时, 认知无线 ***主动访问 TVDB以获取电视空白频道信息。 但是, TVDB只是含有授权***(电视***)关于电视频道的使用信息, 并不涵盖其它电视频谱使用的信息, 例如但不限于, 无线麦克风使用电视频 谱信息。 所以为了保证电视空白频道信息的确实可用 (空白且可用的), 认知 无线***有必要通知下属节点 (例如基站和接入点) 进行频谱感知, 以确定 真正空白且可用的电视空白频道信息。 优选地, 认知无线***根据可用的电视空白频道信息, 对回程链路的资 源进行分配包括: 认知无线***向回程链路中的基站发送可用的电视空白频 道信息, 并通知基站对资源进行分配; 基站根据可用的电视空白频道信息, 对资源进行分配; 基站通知回程链路中的接入点进行参数设置; 接入点进行 参数设置, 并建立与基站之间的回程链路。 具体地, 认知无线***可以通过以下方法将得到的切实可用的电视空白 频道信息通知基站。 按需交互, 当基站需要电视空白频道信息时, 基站向认 知无线***发出频谱资源请求的消息, 认知无线***接到该消息后访问 TVDB, 以获取电视空白频道信息; 认知无线***在获取电视空白频道信息 资源后向基站发出响应消息, 该消息含电视空白频道信息。 通知交互, 当 TVDB中的频谱资源发生改变时, TVDB通知认知无线***有关频谱改变的 信息; 认知无线***再通知基站相应的电视空白频道信息频谱信息。 周期交 互, TVDB周期性地通知认知无线***有关频谱信息, 认知无线***也周期 性地通知基站相应的电视空白频道信息频谱信息。 基站根据获得的电视空白频道信息, 结合自身的业务情况, 对频谱资源 进行重新分配。 这里可能涉及到功率控制 (千 4尤控制), RAT ( Radio Access Technology ) 的参数调整。 基站通知相应的接入点进行参数设置和功率控制(千扰控制;)。在功率控 制时, 上行和下行均应考虑。 基站根据邻道的 RD/U、发射功率、和频谱掩模, 以及自身的千扰冗限(最 大可允许千 4尤功率),分别考虑基站对邻道电视***的千 4尤影响, 以及电视系
统对邻道无线通信*** (含基站、 接入点和相应的用户) 的千 4尤影响。 只有 在两方面条件均满足的情况下, 才能得到基站和接入点实际可用的电视空白 频道信息。 优选地, 在认知无线***对回程链路的资源进行分配之后, 认知无线系 统更新当前的电视空白频道信息。 优选地, 在认知无线***根据可用的电视空白频道信息, 对回程链路的 资源进行分配之后, 判断认知无线***对回程链路的资源分配是否成功; 如 果判断结果为否, 认知无线***将回程链路的资源返回到资源分配前回程链 路使用的授权频谱, 其中授权频谱为回程链路初始加电所承载的频谱。 本优选实施例, 当没有可用的电视空白频道信息频谱资源时, 或者, 由 于某种原因的影响,例如但不限于认知无线***由于其自身的 QoS要求导致 无法利用电视空白频道信息资源时, 可能导致资源分配失败, 此时, 返回到 回程链路的授权频谱上进行工作, 可以保证其正常通讯。 通过上述优选实施例, 基站通过访问数据库和感知, 得到空白且可用的 电视空白频道信息, 并且利用该电视空白频道信息建立回程链路。 其存在以 下的技术效果:
①可动态地建立无线回程链路, 无需事先预铺设电缆 (事先可能也不知 道铺设电缆的地点), 节省了人力和物力成本。
②对于无线回程链路, 其建立和去除只需通过软件即可控制, 增加了回 程链路的灵活性。 下面将结合实例对本发明实施例的实现过程进行详细描述。 优选实施例一 主用户保护 (通知力口感知方式) 的详细流程见图 3。 其详细解释为: 步骤 S302,维护候选频谱资源。 TVDB提供可用频谱资源的初始候选集。 该候选集由各网元共同维护, CCP汇聚来自 Node B/BS的感知信息以及来自 TVDB的授权业务信息, 综合这些信息在提供可用频谱资源的同时, 生成各 BS可用且空白的候选频谱(频道) 集。
步骤 S304, TVDB对有关于 TVWS的信息进行更新 (调整)。 步骤 S306, TVDB通知 CCP有关 TVWS信息。 TVWS的内容包括但不 限于: ①可用频道(含工作频点和带宽), 注意, 这里的带宽既可连续, 也可 不连续; ②覆盖范围 (指该频道可工作的地理区域, 因为空白频道总是有一 定的地域限制的); ③该频道邻近频道的频谱信息, 可能包括但不限于: RD/U (为电视接收机期望的有用信号和千扰信号的功率比)、发射功率、和频谱模 板; ④该频道的有效利用时间。 步 4聚 S308, BS和 AP进行频谱感知。 这里, 需要感知的频谱既可以是 整个电视频谱(本优选实施例给出的是 BS和 AP进行整个电视频谱的感知;), 也可以是 CCP通知 BS的特定的电视频谱。对于 CCP通知 BS进行特定的电 视频谱感知, CCP首先向 BS发出感知请求消息 (消息包括但不限于需感知 的频点和频段信息), BS响应 CCP (向 CCP发感知响应消息), 并且向 AP 发送进行特定的电视频谱感知消息。 步骤 S310, BS和 AP进行感知, 并将感知结果上 4艮 CCP ( AP通过 BS 上报)。 步骤 S312, CCP根据 BS和 AP上报的感知信息,来自于 TVDB的 TVWS 的信息, 以及自身的频谱需求, 确定空白且可用的 TVWS频道(频道可以是 一个, 也可以是多个, 即可有是连续的也可以是不连续的)。 CCP 可以使用 包括但不限于博弈论的方法得到空白且可用的 TVWS频道。 步骤 S314, CCP发起重配。 CCP在得到空白且可用的 TVWS频道后, 向 BS发出重配指令。 该指令包括但不限于频点和频道 (带宽)。 步骤 S316, BS 向 AP发出重配指令。 该指令包括但不限于频点和频道
(带宽)。 步骤 S318, BS进行频谱切换。 BS切换到新的 TVWS上。 步 4聚 S320, AP在切换到新的 TVWS上后, 接入 BS。 步骤 S322, BS向 CCP 4艮告资源重配情况。 这里包括 BS和 /或 AP重配 成功, BS和 /或 AP重配不成功两种情况。 这里 H没重配成功。
步骤 S324, CCP向 BS发送资源分配调整响应, 确认 CCP已经知道 BS 重配^ I 况。 步骤 S326, CCP更新 TVWS资源使用信息。 优选实施例二 主用户保护 (按需加感知方式) 的详细流程见图 4。 其详细解释为: 步骤 S402,维护候选频谱资源。 TVDB提供可用频谱资源的初始候选集。 该候选集由各网元共同维护, CCP汇聚来自 Node B/BS的感知信息以及来自 TVDB的授权业务信息, 综合这些信息在提供可用频谱资源的同时, 生成各 BS可用且空白的候选频谱(频道)集。 在该过程中, TVDB也可能对有关于 TVWS的信息进行更新 (调整)。 步骤 S404, CCP向 TVDB发送 TVWS频谱资源请求消息。 当 CCP由于 某种原因 (例如但不限于, 通信的 QoS , 临时增加的 AP ), 需要额外的频谱 资源时, CCP主动访问 TVDB以获取 TVWS信息。 步骤 S406, TVDB响应 CCP有关 TVWS信息。 TVWS的内容包括但不 限于: ①可用频道(含工作频点和带宽), 注意, 这里的带宽既可连续, 也可 不连续; ②覆盖范围 (指该频道可工作的地理区域, 因为空白频道总是有一 定的地域限制的); ③该频道邻近频道的频谱信息, 可能包括但不限于: RD/U (为电视接收机期望的有用信号和千扰信号的功率比)、发射功率、和频谱模 板; ④该频道的有效利用时间。 当 TVDB有关于 TVWS的信息更新时, 执 行这一步。 步骤 S408, BS和 AP进行频谱感知。 这里, 需要感知的频谱既可以是 整个电视频谱 (本优选实施例二给出的是 BS和 AP进行整个电视频谱的感 知;), 也可以是 CCP通知 BS的特定的电视频谱。 对于 CCP通知 BS进行特 定的电视频谱感知, CCP首先向 BS发出感知请求消息 (消息包括但不限于 需感知的频点和频段信息), BS响应 CCP (向 CCP发请求响应消息), 并且 向 AP发送进行特定的电视频谱感知消息。 步骤 S410, BS和 AP进行感知, 并将感知结果上 4艮 CCP ( AP通过 BS 上报)。 步骤 S412, CCP根据 BS和 AP上报的感知信息,来自于 TVDB的 TVWS
的信息, 以及自身的频谱需求, 确定空白且可用的 TVWS频道(频道可以是 一个, 也可以是多个, 即可有是连续的也可以是不连续的)。 CCP 可以使用 包括但不限于博弈论的方法得到空白且可用的 TVWS频道。 步骤 S414, CCP发起重配。 CCP在得到空白且可用的 TVWS频道后, 向 BS发出重配指令。 该指令包括但不限于频点和频道 (带宽)。 步骤 S416, BS 向 AP发出重配指令。 该指令包括但不限于频点和频道
(带宽)。 步骤 S418, BS进行频谱切换。 BS切换到新的 TVWS上。 步骤 S420, AP在切换到新的 TVWS上后, 接入 BS。 步骤 S422, BS向 CCP 4艮告资源重配情况。 这里包括 BS和 /或 AP重配 成功, BS和 /或 AP重配不成功两种情况。 这里 H没重配成功。 步骤 S424, CCP向 BS发送资源分配调整响应, 确认 CCP已经知道 BS 重配^ I 况。 步骤 S426, CCP更新 TVWS资源使用信息。 需要说明的是, 图 3、 图 4只描述了 TVDB通知 CCP关于 TVWS变化 的情况, 还可以有以下情况的存在:
CCP发现了 TVWS的变化, 且其中有用于 BS和 AP连接的, 首先发送 通知, 通知 BS和 AP的所有连接返回原来工作的链路, 然后 BS再重新走一 边资源申请的流程; CCP 知道变化的 TVWS 所使用的连接, 居其保存的关于该连接和
TVWS使用信息, 为受影响的连接重新分配资源。 这些情况均适用于以上实施例的方法, 其基本流程在前面已经涉及, 这 里不再重复。 需要说明的是, 在附图的流程图示出的步骤可以在诸如一组计算机可执 行指令的计算机***中执行, 并且, 虽然在流程图中示出了逻辑顺序, 但是 在某些情况下, 可以以不同于此处的顺序执行所示出或描述的步骤。
本发明实施例提供了一种认知无线***, 该认知无线***可以用于实现 上述资源分配方法。 图 5是才艮据本发明实施例的认知无线***的结构框图, 包括获取模块 52 , 第一确定模块 54和分配模块 56。 下面对其结构进行详细 描述。 获取模块 52 , 用于获取可用的电视空白频道信息; 第一确定模块 54 , 用于确定对基站和接入点之间的回程链路的资源进行分配; 分配模块 56 , 连 接至获取模块 52和第一确定模块 54 ,用于才艮据获取模块 52获取的可用的电 视空白频道信息, 对第一确定模块 54确定的回程链路的资源进行分配。 图 6是根据本发明优选实施例的认知无线***的结构框图。 优选地, 上述认知无线***还包括第二确定模块 62和检测模块 64。 下 面对其结构进行详细描述。 第二确定模块 62 , 用于确定存在待接入的授权***, 其中授权***使用 回程链路当前使用的电视空白频道信息。 检测模块 64 , 用于检测回程链路的 服务质量信息。 需要说明的是, 装置实施例中描述的认知无线***对应于上述的方法实 施例, 其具体的实现过程在方法实施例中已经进行过详细说明, 在此不再赞 述。 综上所述, 居本发明的上述实施例, 提供了一种资源分配方法及认知 无线***。 通过将电视空白频道信息用于回程链路, 从而增加了回程链路的 可用资源,解决了相关技术中 LTE/LTE-A中的回程链路的频谱非常有限从而 会影响回程链路的容量和服务质量的问题, 进而保证了回程链路的容量和服 务质量。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布 在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程 序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 或 者将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制 作成单个集成电路模块来实现。 这样, 本发明不限制于任何特定的硬件和软 件结合。
以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的 ^"神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。
Claims
1. 一种资源分配方法, 其特征在于, 包括:
认知无线***获取可用的电视空白频道信息;
所述认知无线***确定对基站和接入点之间的回程链路的资源进行 分配;
所述认知无线***根据所述可用的电视空白频道信息, 对所述回程 链路的资源进行分配。
2. 根据权利要求 1所述的方法, 其特征在于, 在所述认知无线***确定对 所述回程链路的资源进行分配之前, 所述方法还包括:
所述认知无线***确定存在待接入的 ·ί受权***, 其中所述待接入的 授权***使用所述回程链路当前使用的电视空白频道信息。
3. 根据权利要求 2所述的方法, 其特征在于, 所述认知无线***确定存在 所述授权***包括以下之一:
所述认知无线***接收到来自含有电视空白频道信息的数据库的通 知消息, 其中所述通知消息用于通知存在所述 ·ί受权***;
所述认知无线***通过自身感知, 确定存在所述 ·ί受权***。
4. 根据权利要求 1所述的方法, 其特征在于, 在所述认知无线***确定对 所述回程链路的资源进行分配之前, 所述方法还包括: 所述认知无线系 统检测到所述回程链路的服务质量信息不满足无线通信要求。
5. 居权利要求 1所述的方法, 其特征在于, 所述认知无线***获取所述 可用的电视空白频道信息包括:
所述认知无线***通过外部资源实体获取所述可用的电视空白频道 信息, 其中所述外部资源实体包括含有空白电视频谱信息的数据库。
6. 根据权利要求 1所述的方法, 其特征在于, 所述认知无线***根据所述 可用的电视空白频道信息, 对所述回程链路的资源进行分配包括: 所述认知无线***向所述回程链路中的基站发送所述可用的电视空 白频道信息, 并通知所述基站对资源进行分配; 所述基站根据所述可用的电视空白频道信息, 对资源进行分配; 所述基站通知所述回程链路中的接入点进行参数设置;
所述接入点进行参数设置,并建立与所述基站之间的所述回程链路。 根据权利要求 1至 6中任一项所述的方法, 其特征在于, 在所述认知无 线***对所述回程链路的资源进行分配之后, 所述方法还包括:
所述认知无线***更新当前的电视空白频道信息。 根据权利要求 1至 6中任一项所述的方法, 其特征在于, 在所述认知无 线***根据所述可用的电视空白频道信息, 对所述回程链路的资源进行 分配之后, 所述方法还包括:
判断所述认知无线***对所述回程链路的资源分配是否成功; 如果判断结果为否, 所述认知无线***将所述回程链路的资源返回 到所述资源分配前所述回程链路使用的授权频谱, 其中所述授权频谱为 所述回程链路初始加电所 7 载的频谱。 一种认知无线***, 其特征在于, 包括:
获取模块, 用于获取可用的电视空白频道信息; 第一确定模块, 用于确定对基站和接入点之间的回程链路的资源进 行分配;
分配模块, 用于根据所述可用的电视空白频道信息, 对所述回程链 路的资源进行分配。 根据权利要求 9所述的认知无线***, 其特征在于, 还包括:
第二确定模块, 用于确定存在待接入的授权***, 其中所述授权系 统使用所述回程链路当前使用的电视空白频道信息;
检测模块, 用于检测所述回程链路的服务质量信息。
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070082632A1 (en) * | 2005-10-11 | 2007-04-12 | Accton Technology Corporation | Wireless device and method for radio control |
CN101729164A (zh) * | 2008-10-27 | 2010-06-09 | 华为技术有限公司 | 无线资源分配方法和认知无线电用户设备 |
-
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070082632A1 (en) * | 2005-10-11 | 2007-04-12 | Accton Technology Corporation | Wireless device and method for radio control |
CN101729164A (zh) * | 2008-10-27 | 2010-06-09 | 华为技术有限公司 | 无线资源分配方法和认知无线电用户设备 |
Non-Patent Citations (1)
Title |
---|
CORDEIRO, CARLOS ET AL.: "IEEE 802.22: An Introduction to the First Wireless Standard based on Cognitive Radios", JOURNAL OF COMMUNICATIONS, vol. 1, no. 1, April 2006 (2006-04-01), pages 38 - 47 * |
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