WO2012159464A1 - 射频资源调度控制方法及装置 - Google Patents

射频资源调度控制方法及装置 Download PDF

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Publication number
WO2012159464A1
WO2012159464A1 PCT/CN2012/071414 CN2012071414W WO2012159464A1 WO 2012159464 A1 WO2012159464 A1 WO 2012159464A1 CN 2012071414 W CN2012071414 W CN 2012071414W WO 2012159464 A1 WO2012159464 A1 WO 2012159464A1
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rru
critical
sector
transceiver
sectors
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PCT/CN2012/071414
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English (en)
French (fr)
Inventor
姚静
姚幸林
于翔川
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中兴通讯股份有限公司
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Publication of WO2012159464A1 publication Critical patent/WO2012159464A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a radio frequency resource scheduling control method and apparatus. Background technique
  • a new type of radio remote system that is attracting attention in the field of new-generation communication equipment manufacturing. Its typical architecture is a baseband processing unit (BBU) and a remote radio unit (RRU).
  • the BBU is generally installed in the equipment room and consists of a baseband processing board (BP). It forms a baseband resource pool and can be shared by multiple RRUs. It is mainly responsible for digital baseband signal processing and control management.
  • the RRU is connected to the antenna and is responsible for the number. The conversion between the baseband signal and the radio frequency signal, and the transmission of the radio frequency signal from the antenna.
  • the fiber optic connection is used between the two to form a radio remote system architecture.
  • the digital mobile communication system of the new-generation RF remote system architecture is more flexible and easy to install, and the network coverage is more effective.
  • it also brings different concepts from the past. For example, almost all BBU+RRU architecture base stations use a dynamic physical logic allocation mode, which overcomes the problem that the physical carrier frequency and logical transceiver correspondence cannot be dynamically and real-time allocated in the traditional mode.
  • the base stations of the above-mentioned BBU+RRU architecture generally use the remote radio networking mode, and the construction positions and antenna angles between the RRUs placed after the radio remote installation are greatly different, taking into account the actual coverage of the sector, in the existing In the RRU resource scheduling control management scheme, RRUs are scheduled in units of sectors.
  • RRU resource allocation scheduling is performed according to the existing sector setting and scheduling scheme, if there is a large amount of RRU hardware damage in a certain sector due to a natural disaster such as an earthquake, the RRU resource shortage is caused, even if the same site is adjacent to the other The sector has a moderate position and is empty For the idle RRU resources, the base station control unit cannot schedule these RRU resources to implement reasonable fault tolerance and disaster recovery processing.
  • the existing RRU resource scheduling implementation mode can not only ensure the smooth running of the cell service when the RRU resources of a certain sector are insufficient, and can not effectively utilize a large number of idle resources that may exist in other sectors.
  • the advantages of the BBU+RRU architecture are not fully utilized.
  • the unreasonable resource scheduling not only reduces resource utilization, but also greatly reduces the system's fault tolerance and disaster tolerance. Summary of the invention
  • the embodiments of the present invention provide a radio resource scheduling control method and device, which are used to solve the problems of low resource utilization and poor system fault tolerance and disaster tolerance caused by unreasonable RRU resource scheduling.
  • a radio frequency resource scheduling control method includes:
  • the critical RRU is a preset RRU that can be scheduled across sectors;
  • an idle critical RRU in other sectors is selected for use by the failed transceiver.
  • a radio frequency resource scheduling control apparatus includes: a fault detection module, a first execution module, and a second execution module;
  • a fault detection module configured to detect whether there is an idle RRU in a sector to which the faulty transceiver belongs when detecting that all the remote radio unit RRUs associated with the failed transceiver are unavailable, and if yes, notify the first execution module, otherwise Notifying the second execution module;
  • a first execution module configured to: when the fault detection module detects a fan to which the faulty transceiver belongs When there is an idle RRU in the area, the RRU that is idle in the sector is selected to be used by the faulty transceiver; otherwise, the idle critical RRU is queried in other sectors; the critical RRU is a preset cross-sector. Scheduled RRU;
  • a second execution module configured to: when the first execution module finds that there is an idle critical RRU in other sectors, select a critical RRU that is idle in other sectors to be used by the faulty transceiver.
  • a base station includes: the foregoing radio frequency resource scheduling apparatus.
  • the method and device for controlling radio frequency resource scheduling provided by the embodiment of the present invention, by setting a critical RRU, calling other when all RRUs associated with the failed transceiver are detected to be unavailable and there is no idle RRU in the sector to which the failed transceiver belongs
  • the critical RRU in the sector is used by the faulty transceiver, thereby solving the problem that the communication service cannot be performed normally due to insufficient RRU in a certain sector.
  • RRU improves resource utilization and greatly improves the fault tolerance and disaster tolerance of the system, giving full play to the advantages of the BBU+RRU architecture.
  • FIG. 1 is a schematic diagram of a system principle for setting a critical RRU according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a radio frequency resource scheduling control method according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of a radio frequency resource scheduling control method according to Embodiment 2 of the present invention.
  • FIG. 4 is a flowchart of a radio frequency resource scheduling control apparatus according to an embodiment of the present invention. detailed description
  • the embodiment of the present invention provides a method for controlling radio frequency resource scheduling, which is configured to set a critical RRU, where the critical RRU is a RRU that can be scheduled across sectors, and the critical RRU is the same as other RRU hardware in the site, and meets the following conditions:
  • the critical RRU is generally equipped with a high-performance ESC antenna to control the tilt angle of the antenna through the interface protocol of the Antenna Interface Standards Group (AISG), so that the RRU connected to the same antenna can be modified only by logic parameters.
  • the scheduling configuration of one sector to another sector that is, cross-sector scheduling, can maintain optimal coverage without construction adjustment.
  • the critical RRU meets the following conditions: The critical RRU is the same as the normal RRU hardware configuration; the critical RRU placement location is located adjacent to the sector to other sectors; the critical RRU is configured to be traversable across sectors.
  • Figure 1 shows the schematic diagram of the system for setting a critical RRU. Taking an S3/3/3 site as an example, only parts related to the present invention are shown in Fig. 1. It will be understood by those skilled in the art that the base station has other functions and structures, but these are not within the scope of the present invention.
  • the base station includes two parts, a BBU and an RRU.
  • the RRU includes two types of common RRUs and critical RRUs, and different RRUs are distributed under different sectors.
  • the critical RRU must be placed adjacent to each sector during the construction of the station, equipped with an electrical adjustment antenna, the number of which is determined by the specific requirements of the networking.
  • RRU1 and RRU2 RRUn in Figure 1 belong to the normal RRU.
  • the correspondence between each RRU and the transceiver is set by the base station. When there is a non-critical normal RRU, Generally, the transceiver is configured on a non-critical RRU, so that the critical RRU is reserved for subsequent fault switching.
  • parameter configuration may also be performed.
  • the parameter configuration is completed by the Operations and Maintenance Centre (OMC) and delivered to each base station.
  • OMC Operations and Maintenance Centre
  • BSC Base Station Controller
  • BSC Base Station Controller
  • the radio frequency resource scheduling control method of the present invention is described in detail below through specific embodiments.
  • the method for controlling radio frequency resource scheduling provided by the first embodiment of the present invention is as shown in FIG. 2, and includes the following steps:
  • Step S101 periodically detecting the working state of the transceiver.
  • the base station performs a periodic query through the BP to determine whether the transceiver is in an abnormal working state. If an abnormality is found, the fault is reported to the radio resource scheduling control device, and the device may be set in the base station main control unit and configured by the radio frequency resource. The control device is scheduled to control the completion of subsequent operations.
  • step S102 the working state of each transceiver is periodically detected by the set first detection period, and the first detection period is controlled by starting the timer 1 to periodically detect each sector under the jurisdiction of the base station itself.
  • step S102 the working status of all the transceivers, if it is detected that the transceiver is in an abnormal state, step S102 is performed, otherwise the detection is continued.
  • the associated RRU When it is detected that the transceiver of the radio resource is occluded due to the RRU hardware or software failure, the associated RRU is considered to be abnormal, and it is confirmed that the transceiver associated with the RRU works due to the associated RRU damage. The status is abnormal.
  • Step S102 When it is detected that there is a failure of the transceiver, it is determined whether all RRUs associated with the failed transceiver are unavailable.
  • step S103 If yes, go to step S103, otherwise return to step S102.
  • the polling detects the failed transmission and reception. Whether all RRUs associated with the machine are unavailable. When the result of the test is yes, it is determined that all RRUs associated with the logical transceiver that detected the failure are unavailable.
  • the radio resource scheduling control device After receiving the fault report from BP, the radio resource scheduling control device polls all RRUs associated with the faulty transceiver according to the current configuration, and determines whether the polled RRU resource is unavailable due to the fault. If it is detected that all RRUs associated with the failed transceiver are not available due to a failure, step 103 is performed, otherwise returning to step 101 to continue the detection.
  • Step S103 Detect whether there is an idle RRU in the sector to which the faulty transceiver belongs.
  • the radio resource scheduling control device continues to detect whether there are other idle RRUs in the sector to which the failed transceiver belongs.
  • the idle RRU refers to the RRU physical entity operating normally, but there is no RRU associated with any one transceiver.
  • step S104 If yes, go to step S104, otherwise go to step S105.
  • Step S104 Select an idle RRU in the sector to be used for the faulty transceiver.
  • the number of RRUs configured in each sector is generally greater than or equal to the number of transceivers, so that when there is an RRU failure, the idle RRU of the sector can be preferentially used to replace the failed RRU to the faulty transceiver.
  • the letter is used.
  • Step S105 Query whether there are idle critical RRUs in other sectors. Among them, the critical
  • the RRU is a pre-configured RRU that can be scheduled across sectors.
  • the radio resource scheduling control device polls the critical RRU usage of all other sectors in the station to find out whether there is a critical RRU idle. Whether the RRU is queried is a critical RRU resource, which is determined by the configuration of the OMC.
  • step S106 If yes, go to step S106, otherwise return to step S107.
  • Step S106 Select an idle critical RRU in other sectors to be used by the faulty transceiver. When it is found that there are free critical RRUs in other sectors, the critical critical RRUs in other sectors are selected for use by the failed transceiver. After selecting the critical critical RRU in other sectors, configure the RRU parameters of the critical RRU and the angle of the ESC antenna according to the needs of the faulty transceiver; The configured critical RRU replaces the failed RRU of the sector to which it was previously used by the failed transceiver. That is, when an idle critical RRU in another sector is selected for use, the critical RRU parameter and the matching electrical adjustment antenna angle are dynamically adjusted to replace the faulty RRU. At this point, setting the faulty RRU is not available.
  • the adjustment of the angle of the supporting electrical adjustment antenna is completed by the RRU itself, and the adjusted RRU parameters are completed by the radio resource scheduling control device and sent to the critical RRU.
  • Step S107 End the process or find out whether the occupied RRU in other sectors can be released to the failed transceiver.
  • the critical RRUs allocated in other sectors may also be searched to determine whether they are releasable.
  • the critical RRU used by the failed transceiver may be searched to determine whether they are releasable.
  • the method for controlling radio frequency resource scheduling provided by the second embodiment of the present invention is as shown in FIG. 3, and includes the following steps:
  • Step S201 periodically detecting the working state of the transceiver.
  • Step S202 When it is detected that there is a failure of the transceiver, it is determined whether all RRUs associated with the failed transceiver are unavailable.
  • step S203 If yes, go to step S203, otherwise return to step S201.
  • Step S203 Detect whether there is an idle RRU in the sector to which the faulty transceiver belongs.
  • step S204 If yes, go to step S204, otherwise go to step S205.
  • Step S204 Select an idle RRU in the sector to be used for the faulty transceiver.
  • Step S205 Detect whether the channels of the sector to which the faulty transceiver belongs are all occupied.
  • step S201 it is detected whether the channel of the sector to which the failed transceiver belongs is occupied before querying whether there is an idle critical RRU in other sectors.
  • the determination is yes, a step of querying whether there is an idle critical RRU in other sectors is performed. Otherwise, the process returns to step S201.
  • the current situation of all the channels in the sector to which the faulty transceiver belongs is queried, and the function is performed by the baseband part of the BBU, which is reported to the radio resource scheduling control device by the BP statistics, and is collected by the radio resource scheduling control device. If it is confirmed that not all channels are occupied, but there is a channel idle, it indicates that the fault of the faulty transceiver does not affect the operation of the entire sector. In this case, it is also considered to suspend the detection and wait for the detection of the next cycle. .
  • Step S206 Query whether there are idle critical RRUs in other sectors.
  • the critical RRU is a preset RRU that can be scheduled across sectors.
  • step S207 If yes, go to step S207, otherwise return to step S208.
  • Step S207 Select an idle critical RRU in another sector to be used by the faulty transceiver. See step S106.
  • Step S208 Query whether there is a releasable critical RRU according to the channel occupancy of the allocated critical RRU in other sectors.
  • the channel occupancy of the allocated critical RRUs in other sectors is queried, and according to the channel occupancy of the allocated critical RRUs in other sectors, it is found whether there is a releasable The critical RRU; if yes, go to step S209; otherwise, go to step S210.
  • the critical RRU is a releasable RRU according to the number of unoccupied channels of the critical RRU allocated by other sectors, and the number of unoccupied channels of the allocated critical RRU exceeds the set in the second detection period of the continuously set number.
  • the critical RRU is determined to be releaseable Put the critical RRU.
  • the product of the second detection period and the set number is smaller than the first detection period.
  • the radio resource scheduling control device polls all other sector channel occupations including the allocated critical RRUs in the site, and if the allocated critical RRUs are not occupied, the channel exceeds the set threshold for N consecutive periods, and is considered to have been allocated.
  • the critical RRU can be released.
  • the BP reports the channel occupancy of the transceiver and calculates the channel occupancy of each sector.
  • the base station control unit starts the timer 2, which is used to periodically summarize the channel occupancy. If the BP is reported continuously for N consecutive periods. If the number of idle channels in a certain sector exceeds the threshold, it indicates that the deprivation of the critical RRU under this sector does not affect the normal operation of the sector.
  • the timer 2 cycle duration multiplied by N must be less than the cycle duration of the cycle timer 1.
  • the set threshold may be the maximum number of channels included in one transceiver to ensure the robustness of the entire system.
  • Step S209 The releasable critical RRU is used by the faulty transceiver.
  • the resources of the releasable critical RRU are released, and the RRU parameter of the critical RRU and the matching electrical antenna angle are dynamically adjusted to replace the faulty RRU, and the faulty RRU is set to be unavailable, and the configuration is configured. Refer to step S106.
  • RRU configuration parameter switching may cause abnormal call drop, but considering the metrics and disaster tolerance of the entire system, a small number of abnormal call drops are allowed.
  • Step S210 Compare the priority of the sector to which the failed transceiver belongs and the priority of the sector to which all the allocated critical RRUs belong.
  • a sector with a lower priority than the sector to which the failed RRU belongs and containing the assigned critical RRU is located by polling all other sector priorities in the site that contain the assigned critical RRU.
  • the priority of each sector is preset by the OMC and sent to the base station as a parameter.
  • the polling operation is performed by the radio resource scheduling control device, and the high priority sector has more authority to occupy the critical RRU than the lower priority sector.
  • Step S211 It is determined whether there is a sector containing the assigned critical RRU with a lower priority than the sector to which the failed transceiver belongs.
  • Step S212 Select the allocated critical RRU from the sectors whose priority is lower than the priority of the sector to which the failed transceiver belongs.
  • the lowest priority sector is picked out among all low priority sectors containing the assigned critical RRU.
  • Step S213 Detect whether the selection critical RRU is bound to a broadcast control channel (BCCH, Broadcast Control Channel) transceiver.
  • BCCH Broadcast Control Channel
  • the assigned critical RRU in the sector whose priority is lower than the priority of the sector to which the failed transceiver belongs is selected to determine whether the selected critical RRU is bound to the transceiver within the sector to which it belongs.
  • step 212 it is checked whether the selected critical RRU is bound to the BCCH transceiver, and if so, step 212 is performed, otherwise step 213 is performed.
  • the base station performs the binding between the transceiver and the RRU, the non-critical RRU is preferentially selected for binding. Therefore, once the critical RRU is bound to the BCCH transceiver, the sector to which the selected critical RRU belongs is also Faced with the shortage of RRU, it is not appropriate to deprive its critical RRU at this time, otherwise the sector of the selected critical RRU will have a serious situation of sector interruption.
  • step S212 and step S213 all detection decision algorithms are executed by the radio resource scheduling control device.
  • step S214 If yes, go to step S214; otherwise, go to step S215.
  • Step S214 The critical RRU bound to the BCCH transceiver is deleted from the candidate critical RRU.
  • the other priority is lower than the priority of the sector to which the failed transceiver belongs.
  • the selection in the sector has been assigned a critical RRU.
  • Step S215 The selected allocated critical RRU is used by the faulty transceiver.
  • the resource of the critical RRU is forcibly released, and the RRU parameter of the critical RRU and the matching electrical antenna angle are dynamically adjusted to replace the faulty RRU, and the faulty RRU is set to be unavailable. .
  • RRU configuration parameter switching may cause abnormal call drop, but considering the metrics and disaster tolerance of the entire system, a small number of abnormal call drops are allowed.
  • Steps S212 through S214 are implemented to select the allocated critical RRU for use by the failed transceiver from the sector having a lower priority than the sector priority of the failed transceiver.
  • the embodiment of the present invention provides a radio frequency resource scheduling control apparatus, where the apparatus may be set in a base station, for example, in a base station main control unit of a base station, where is a logical unit. It is located on the BBU and can be located on the same physical entity as the BP. It can also be assigned to different physical entities to implement radio resource scheduling.
  • the device can be implemented by a software logic unit. The structure is as shown in FIG. 4, and includes: a fault detection module 10, a first execution module 20, and a second execution module 30.
  • the fault detection module 10 is configured to detect whether there is an idle RRU in the sector to which the faulty transceiver belongs when detecting that all the RRUs associated with the failed transceiver are unavailable, and notify the first execution module 20 if yes, otherwise notify the The second execution module 30.
  • the first execution module 20 is configured to: when the fault detection module 10 detects that there is an idle RRU in the sector to which the faulty transceiver belongs, select an RRU that is idle in the sector to be used by the faulty transceiver; Whether there are idle critical RRUs in other sectors; the critical RRU is a preset RRU that can be scheduled across sectors.
  • the first execution module 20 is further configured to: when the fault detection module 10 detects that there is no idle RRU in the sector to which the faulty transceiver belongs, detect whether the channel of the sector to which the faulty transceiver belongs is occupied. When the judgment is yes, the execution of the query is performed in other sectors. The judgment of the critical RRU in idle.
  • the second execution module 30 is configured to select an idle critical RRU in another sector to be used by the faulty transceiver when the first execution module 20 finds that there is an idle critical RRU in other sectors.
  • the radio frequency resource scheduling control apparatus further includes: a third execution module 40 and a fourth execution module 50.
  • the third execution module 40 is configured to query, when the first execution module 20 finds that there are no idle critical RRUs in other sectors, query channel occupancy of the allocated critical RRUs in other sectors; The channel occupancy of the critical RRU, looking for the presence of a releasable critical RRU.
  • the foregoing third execution module 40 is specifically configured to determine, according to the number of unoccupied channels of the critical RRUs allocated by other sectors, whether the RRUs are releasable, and the number of unoccupied channels of the allocated critical RRUs are continuously set. When the number of second detection periods exceeds the set number threshold, it is determined that the critical RRU is a releasable critical RRU.
  • the fourth execution module 50 is configured to use the releasable critical RRU to the faulty transceiver when the third execution module 40 finds that there is a releasable critical RRU.
  • the foregoing radio frequency resource scheduling control apparatus further includes:
  • a fifth execution module 60 configured to: when the third execution module 40 determines that there is no releasable critical RRU, compare a priority of a sector to which the faulty transceiver belongs and a priority of a sector to which all of the allocated critical RRUs belong; Among the sectors whose priority is lower than the priority of the sector to which the failed transceiver belongs, the assigned critical RRU is selected for use by the failed transceiver.
  • the fifth execution module 60 is specifically configured to select an allocated critical RRU in a sector whose priority is lower than a priority of a sector to which the faulty transceiver belongs, and determine whether the selected critical RRU is within the sector to which it belongs. Transceiver binding; if yes, re-select the assigned critical RRU in other sectors with a lower priority than the priority of the sector to which the failed transceiver belongs; otherwise The assigned critical RRU is used by the failed transceiver.
  • the radio frequency resource scheduling control method provided by the embodiment of the present invention sets an RRU that can be scheduled across sectors.
  • the RRU resources of the sector to which the transceiver belongs are insufficient, the idle RRUs can be scheduled across sectors, thereby achieving reasonable utilization.
  • the critical RRU of each sector optimizes network resource scheduling indicators to improve RRU resource utilization and base station disaster tolerance.
  • whether to allocate the allocated critical RRU to the faulty transceiver may be determined according to the priority of the sector, thereby ensuring that the demand of the high priority sector is preferentially satisfied, and avoiding the high priority busy.
  • the performance index of the sector is degraded due to a large number of RRUs. This not only improves the resource utilization rate of the entire site, but also saves system resources. It fully exploits the advantages of the BBU+RRU remote architecture and improves the fault tolerance and mitigation capability of the entire system.
  • the radio frequency resource scheduling control method provided by the embodiment of the present invention can be applied to radio resource scheduling management of a global mobile communication system (GSM, Global Sysctrl for Mobile Communication), and can also be applied to a communication system such as 3G to solve the capacity of the radio base station. Disaster tolerance.
  • the configuration of the RRU can be upgraded from the scheduling management of the site to the scheduling management of the communication system at the entire network level.
  • the present invention calls a critical RRU in another sector to the failed transceiver when it is detected that all RRUs associated with the failed transceiver are unavailable and there are no idle RRUs in the sector to which the failed transceiver belongs. , thereby solving the problem of insufficient RRU in a certain sector. The problem that the communication service cannot be performed normally.

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Abstract

本发明公开了一种射频资源调度控制方法及装置，该方法包括：当检测到发生故障的收发信机关联的所有拉远射频单元RRU不可用时，检测故障收发信机所属扇区内是否有空闲的RRU；若是，选择所属扇区内空闲的RRU给所述故障收发信机使用；若否，查询其他扇区内是否存在空闲的临界RRU；所述临界RRU为预先设置的可跨扇区调度的RRU；当查找到其他扇区内存在空闲的临界RRU时，选择其他扇区内空闲的临界RRU给所述故障收发信机使用。该方法RRU资源调度合理，提高了资源利用率和系统容错容灾能力。

Description

射频资源调度控制方法及装置 技术领域
本发明涉及通信技术领域， 尤其涉及一种射频资源调度控制方法及装 置。 背景技术
新一代通讯设备制造领域逐渐引起关注的射频拉远系统， 其典型的架 构是基带处理单元（BBU, Baseband Unit ) +拉远射频单元（RRU, Remote Radio Unit )。 BBU一般安装在机房内，由基带处理板（ BP, Baseband Process ) 组成， 构成一个基带资源池， 可以供多个 RRU共享， 主要负责数字基带信 号处理以及控制管理； RRU则与天线连接， 负责数字基带信号和射频信号 之间的转换， 以及射频信号从天线的发射。 两者之间采用光纤连接， 构成 射频拉远系统架构。
新一代射频拉远系统架构的数字移动通讯系统与传统的组网模式相 比， 安装灵活简易， 网络覆盖更有效， 在管理上也带来和以往不相同的理 念。 例如， 几乎所有的 BBU+RRU架构的基站均使用动态物理逻辑分配的 模式， 克服了传统模式下物理载频和逻辑收发信机对应关系不能动态实时 分配的问题。
上述 BBU+RRU架构的基站一般都使用射频拉远的组网方式， 射频拉 远施工后安放的 RRU之间的施工位置和天线角度相差很大， 考虑到扇区实 际覆盖范围，在现有的 RRU资源调度控制管理方案中， RRU都是以扇区为 单位进行调度的。按照现有的扇区设置和调度方案进行 RRU资源的分配调 度时， 一旦出现因地震等天灾导致某一扇区内 RRU硬件大量受损而引发 RRU资源不足的情况， 即便同一站点下， 邻近其他扇区有位置适中并且空 闲的 RRU资源， 基站主控单元也无法对这些 RRU资源进行调度， 实现合 理的容错容灾处理。
可见， 现有的 RRU资源调度实现方式， 在某个扇区的 RRU资源不足 时， 不仅不能保证该小区业务的顺利进行， 同时， 对其他扇区内可能存在 的大量闲置资源也不能进行有效利用， 没有彻底发挥 BBU+RRU架构的优 势， 资源调度的不合理不仅降低了资源利用率， 同时， 也大大降低了系统 的容错容灾能力。 发明内容
本发明实施例提供了一种射频资源调度控制方法及装置， 用以解决现 有 RRU资源调度不合理所导致的资源利用率低， 系统容错容灾能力差等问 题。
一种射频资源调度控制方法， 包括：
当检测到发生故障的收发信机关联的所有拉远射频单元 RRU 不可用 时， 检测故障收发信机所属扇区内是否有空闲的 RRU;
若是， 选择所属扇区内空闲的 RRU给所述故障收发信机使用； 若否， 查询其他扇区内是否存在空闲的临界 RRU;所述临界 RRU为预先设置的可 跨扇区调度的 RRU;
当查找到其他扇区内存在空闲的临界 RRU时， 选择其他扇区内空闲的 临界 RRU给所述故障收发信机使用。
一种射频资源调度控制装置， 包括： 故障检测模块、 第一执行模块和 第二执行模块；
故障检测模块， 用于当检测到发生故障的收发信机关联的所有拉远射 频单元 RRU不可用时， 检测故障收发信机所属扇区内是否有空闲的 RRU, 若是则通知第一执行模块， 否则通知第二执行模块；
第一执行模块， 用于当所述故障检测模块检测到故障收发信机所属扇 区内存在空闲的 RRU时， 选择所属扇区内空闲的 RRU给所述故障收发信 机使用； 否则查询其他扇区内是否存在空闲的临界 RRU; 所述临界 RRU为 预先设置的可跨扇区调度的 RRU;
第二执行模块， 用于当第一执行模块查找到其他扇区内存在空闲临界 RRU时， 选择其他扇区内空闲的临界 RRU给所述故障收发信机使用。
一种基站， 包括： 上述的射频资源调度装置。
本发明有益效果如下：
本发明实施例提供的射频资源调度控制方法及装置， 通过设置临界 RRU,在检测到发生故障的收发信机关联的所有 RRU不可用且故障收发信 机所属扇区内没有空闲 RRU时， 调用其他扇区内的临界 RRU给故障收发 信机使用，从而解决了某个扇区内因 RRU不足而导致的通信业务不能正常 进行的问题， 在某个扇区 RRU不足时， 可以充分利用其他扇区的 RRU, 提 高了资源利用率， 也大大提高了系统的容错容灾能力， 充分发挥了 BBU+RRU架构的优势。 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， 构成本发明的一 部分， 本发明的示意性实施例及其说明仅用于解释本发明， 并不构成对本 发明的不当限定。 在附图中：
图 1为本发明实施例中设置临界 RRU的系统原理示意图；
图 2为本发明实施例一中射频资源调度控制方法的流程图；
图 3为本发明实施例二中射频资源调度控制方法的流程图；
图 4为本发明实施例中射频资源调度控制装置的流程图。 具体实施方式
为了使本发明所要解决的技术问题、 技术方案及有益效果更加清楚、 明白， 以下结合附图和实施例， 对本发明进行进一步详细说明。 应当理解， 此处所描述的具体实施例仅仅用以解释本发明， 并不用于限定本发明。
本发明实施例提供一种射频资源调度控制方法， 设置临界 RRU, 其中 设置的临界 RRU为可跨扇区调度的 RRU, 这类临界 RRU与站点内的其他 RRU硬件相同， 并满足如下条件：
一是位于各扇区的相邻部分。
在基站施工时， 虽然不同的扇区覆盖不同的区域， 但是同一个站点下， 各个扇区之间， 总归会有相邻部分， 临界 RRU位于这一类区域。
二是可以完成跨扇区的调度。
临界 RRU —般装备高性能的电调天线， 以便通过天线接口标准组 ( AISG, Antenna Interface Standards Group )接口协议控制天线的倾角， 使 得连接同一天线的 RRU仅凭借逻辑参数的修改， 即可完成从一个扇区到另 外一个扇区的调度配置， 即跨扇区调度， 从而不用进行施工调整， 也能够 保持较为理想的覆盖范围。
综上所述， 临界 RRU符合下列条件： 临界 RRU与普通 RRU硬件配置 相同； 临界 RRU安放位置位于所属扇区与其他扇区的相邻位置处； 临界 RRU配置为可跨扇区调度。
如图 1所示为设置临界 RRU的系统原理示意图。以一个 S3/3/3站点为 例， 图 1 中仅给出了与本发明相关的部分， 本领域技术人员可以理解， 基 站具有其他功能和结构， 但这些不在本发明的讨论范围内。
如图 1所示， 基站包括 BBU和 RRU两部分， RRU包括普通的 RRU 和临界 RRU两种， 不同的 RRU分布在不同的扇区下。 原则上临界 RRU在 建站施工时必须布局在各个扇区的相邻处， 配备电调天线， 其个数由组网 的具体要求决定。如图 1中的 RRU1、 RRU2 RRUn都属于普通 RRU。 各 RRU与收发信机的对应关系由基站设定， 当有非临界的普通 RRU时， 一般优先将收发信机配置在非临界的 RRU上， 以便于将临界 RRU留待后 续故障倒换时使用。
较佳的， 如图 1 所示， 在组网要求确定之后， 还可以进行参数配置。 参数配置由操作维护中心 （OMC, Operations & Maintenance Centre ) 完成 并统一下发给各基站，下发时可由基站控制器（ BSC, Base Station Controller ) 完成下发。
下面通过具体实施例详细描述本发明的射频资源调度控制方法。
实施例一
本发明实施例一提供的射频资源调度控制方法， 其流程如图 2所示， 包括如下步驟：
步驟 S101 : 周期性检测收发信机的工作状态。
基站通过 BP来进行周期性查询，用以判断是否有收发信机工作状态异 常， 一旦发现异常， 则上报故障到射频资源调度控制装置， 该装置可以设 置在基站主控单元中， 并由射频资源调度控制装置来控制完成后续操作。
该步驟中以设定的第一检测周期周期性检测各收发信机的工作状态， 通过启动定时器 1 来实现第一检测周期的控制， 以便周期性检测基站自身 系统中所辖各个扇区下的所有收发信机的工作状态， 如果检测到有收发信 机工作状态异常， 执行步驟 S102, 否则继续检测。
当检测到由于 RRU硬件或软件故障而导致的射频资源操作态闭塞后连 带的收发信机闭塞， 认为该 RRU工作状态异常， 进而确认该 RRU所关联 的收发信机因其关联的 RRU损坏而工作状态异常。
步驟 S102: 当检测到有收发信机发生故障时， 判断发生故障的收发信 机关联的所有 RRU是否都不可用。
若是， 执行步驟 S103 , 否则返回继续执行步驟 S102。
当检测到有收发信机工作状态异常时， 轮询检测该发生故障的收发信 机所关联的所有 RRU是否都不可用， 当检测结果为是时， 确定检测到发生 故障的逻辑收发信机关联的所有 RRU不可用。
射频资源调度控制装置收到来自 BP 的故障报告之后， 会根据当前配 置，轮询所有与故障收发信机相关联的 RRU,判断被轮询 RRU资源是否因 故障而不可用。 如果检测到发生故障的收发信机所关联的所有 RRU因故障 不可用， 则执行步驟 103 , 否则返回步驟 101继续检测。
步驟 S103: 检测故障收发信机所属扇区内是否有空闲的 RRU。
射频资源调度控制装置继续检测该故障收发信机所属扇区内是否有其 他空闲 RRU, 其中空闲的 RRU是指 RRU物理实体正常运行， 但没有与任 何一个收发信机关联的 RRU。
若是， 执行步驟 S104, 否则执行步驟 S105。
步驟 S104: 选择所属扇区内空闲的 RRU给故障收发信机使用。
在基站初始配置时， 一般每个扇区中配置的 RRU数量要大于等于收发 信机的数量， 以便能够在有 RRU故障时，可以优先使用本扇区的空闲 RRU 来替换出现故障 RRU给故障收发信机使用。
步驟 S105: 查询其他扇区内是否存在空闲的临界 RRU。 其中， 临界
RRU为预先设置的可跨扇区调度的 RRU。
射频资源调度控制装置轮询所在站点内其他所有扇区下临界 RRU使用 情况， 查找是否有临界 RRU空闲。 其中， 被查询 RRU是否为临界 RRU资 源， 由 OMC的配置决定。
若是， 执行步驟 S106, 否则返回继续执行步驟 S107。
步驟 S106: 选择其他扇区内空闲的临界 RRU给故障收发信机使用。 当查找到其他扇区内存在空闲的临界 RRU时， 选择其他扇区内空闲的 临界 RRU给故障收发信机使用。 选择其他扇区内空闲的临界 RRU后， 根 据故障收发信机的需要， 配置临界 RRU的 RRU参数和电调天线角度； 用 配置后的临界 RRU代替故障收发信机之前使用的所属扇区的故障 RRU。 即在选择其他扇区内的一个空闲的临界 RRU使用时， 动态调整该临界 RRU参数和配套电调天线角度， 用以代替故障 RRU。 此时，设置故障 RRU 为不可用。
其中， 配套电调天线角度的调整工作由 RRU自身控制完成， 而调整的 RRU参数则由射频资源调度控制装置完成， 并下发给该临界 RRU。
步驟 S107:结束流程或查找其他扇区内已占用的 RRU是否可释放给故 障收发信机使用。
当其他可查找扇区内均查找不到空闲的临界 RRU时， 即认为没有合适 的临界 RRU 而结束流程， 优选的， 还可以查找其他扇区内已分配的临界 RRU, 确定是否属于可释放给故障收发信机使用的临界 RRU。
实施例二
本发明实施例二提供的射频资源调度控制方法， 其流程如图 3 所示， 包括如下步驟：
步驟 S201 : 周期性检测收发信机的工作状态。
参见步驟 S101。
步驟 S202: 当检测到有收发信机发生故障时， 判断发生故障的收发信 机关联的所有 RRU是否都不可用。
若是， 执行步驟 S203 , 否则返回继续执行步驟 S201。
参见步驟 S102。
步驟 S203： 检测故障收发信机所属扇区内是否有空闲的 RRU。
参见步驟 S103。
若是， 执行步驟 S204, 否则执行步驟 S205。
步驟 S204: 选择所属扇区内空闲的 RRU给故障收发信机使用。 步驟 S205: 检测故障收发信机所属扇区的信道是否都被占用。
与实施例一不同的是， 在查询其他扇区内是否存在空闲的临界 RRU之 前， 检测故障收发信机所属扇区的信道是否都被占用。 当判断为是时， 再 执行查询其他扇区内是否存在空闲的临界 RRU的步驟。 否则返回继续执行 步驟 S201。
该步驟中查询故障收发信机所属扇区内当前所有信道的占用情况， 由 BBU的基带部分完成该功能， 具体由 BP统计后上报给射频资源调度控制 装置， 由射频资源调度控制装置统计后， 如果确认不是所有信道都被占用， 而是有信道空闲， 则说明故障收发信机的故障并未影响到整个扇区的工作， 此时也可以考虑中止本次检测， 等待下一个周期的检测情况。
步驟 S206: 查询其他扇区内是否存在空闲的临界 RRU。 其中， 临界 RRU为预先设置的可跨扇区调度的 RRU。
参见步驟 S105。
若是， 执行步驟 S207, 否则返回继续执行步驟 S208。
步驟 S207: 选择其他扇区内空闲的临界 RRU给故障收发信机使用。 参见步驟 S106。
步驟 S208:根据其他扇区内已分配的临界 RRU的信道占用情况，查询 是否存在可释放的临界 RRU。
当查找到其他扇区内不存在空闲的临界 RRU时， 查询其他扇区内已分 配的临界 RRU的信道占用情况， 根据其他扇区内已分配的临界 RRU的信 道占用情况， 查找是否存在可释放的临界 RRU; 若是， 执行步驟 S209; 否 则， 执行步驟 S210。
根据其他扇区已分配的临界 RRU的未占用信道数量判断此临界 RRU 是否为可释放的 RRU,当已分配的临界 RRU的未占用信道数量在连续设定 数量的第二检测周期内均超过设定的数量阈值时， 确定该临界 RRU为可释 放的临界 RRU。 优选的， 第二检测周期与设定数量的乘积小于第一检测周 期。
射频资源调度控制装置轮询本站点内所有其它包含已分配临界 RRU的 扇区信道占用情况，如果有已分配的临界 RRU未占用信道连续 N个周期内 均超过设定的阈值， 认为已分配的临界 RRU可以释放。
该步驟中由 BP上报收发信机信道占用情况并计算出每个扇区的信道 占用情况， 基站主控单元开启定时器 2, 用于周期性汇总信道占用情况， 如 果连续 N个周期 BP上报的某一扇区空闲信道个数超过阈值， 则表明剥夺 此扇区下的临界 RRU不影响此扇区的正常工作。 其中， 定时器 2周期时长 乘以 N必须小于周期定时器 1的周期时长。
优选的， 考虑到效率并兼顾系统的稳定性， 设定的阈值的可以为一个 收发信机所包含信道最大个数， 以保证整个系统的稳健性。
步驟 S209： 将可释放的临界 RRU给故障收发信机使用。
当查找到存在可释放的临界 RRU时， 将可释放的临界 RRU的资源释 放， 动态调整临界 RRU的 RRU参数和配套电调天线角度， 用以代替故障 RRU, 同时设置故障 RRU为不可用， 配置时参照步驟 S106。
RRU配置参数倒换可能会引起异常掉话现象， 但考虑到整个系统的指 标和容灾性， 少量异常掉话是允许的。
步驟 S210: 比较故障收发信机所属扇区的优先级与所有已分配临界 RRU所属的扇区的优先级。
当不存在可释放的临界 RRU时， 可以考虑从优先级低于故障收发信机 所属的扇区的优先级的扇区中，选择已分配临界 RRU给故障收发信机使用。
通过轮询本站点内所有其它包含已分配临界 RRU的扇区优先级， 查找 优先级低于故障 RRU所属扇区且包含已分配临界 RRU的扇区。
在本步驟中，各扇区的优先级由 OMC预先设定，作为参数下发给基站， 轮询工作由射频资源调度控制装置执行， 高优先级扇区比低优先级扇区更 有权限占用临界 RRU。
步驟 S211 : 确定是否存在优先级低于故障收发信机所属的扇区的优先 级的包含已分配临界 RRU的扇区。
若是， 执行步驟 S212; 否则结束本次流程， 返回继续执行步驟 S201。 步驟 S212: 从优先级低于故障收发信机所属的扇区的优先级的扇区中 选择已分配临界 RRU。
优选的， 在所有包含已分配临界 RRU的低优先级扇区内挑出优先级最 低的扇区。
步驟 S213:检测选择临界 RRU是否与广播控制信道（BCCH, Broadcast Control Channel ) 收发信机绑定。
选择优先级低于故障收发信机所属的扇区的优先级的扇区中的已分配 临界 RRU, 判断选择的临界 RRU是否与所属扇区内的收发信机绑定。
具体检查选择的临界 RRU是否与 BCCH收发信机绑定，如果是， 则执 行步驟 212, 否则执行步驟 213。 一般基站在进行收发信机和 RRU绑定时， 优先选择非临界 RRU来进行绑定， 因此， 一旦出现临界 RRU与 BCCH收 发信机绑定的情况， 则说明所选择的临界 RRU所属扇区也面临着 RRU的 短缺的情况， 此时剥夺其临界 RRU是不合适的， 否则被选择的临界 RRU 所属扇区会出现扇区中断的严重情况。
步驟 S212和步驟 S213中， 一切检测决策算法均由射频资源调度控制 装置执行。
若是， 执行步驟 S214; 否则执行步驟 S215。
步驟 S214:将与 BCCH收发信机绑定的临界 RRU从备选临界 RRU中 删除。
返回步驟 S212重新在优先级低于故障收发信机所属扇区优先级的其他 扇区中的选择已分配临界 RRU。
步驟 S215: 将被选择的已分配临界 RRU给故障收发信机使用。
对于被选择的已分配临界 RRU, 强行释放该临界 RRU的资源，动态调 整临界 RRU的 RRU参数和配套电调天线角度， 用以代替故障 RRU, 同时 设置故障 RRU为不可用， 配置时参照步驟 S106。
RRU配置参数倒换可能会引起异常掉话现象， 但考虑到整个系统的指 标和容灾性， 少量异常掉话是允许的。
步驟 S212到步驟 S214实现了从优先级低于故障收发信机所属扇区优 先级的扇区中， 选择已分配临界 RRU给故障收发信机使用。
基于本发明实施例提供的射频资源调度控制方法， 本发明实施例提供 一种射频资源调度控制装置， 该装置可以设置在基站中， 例如设置在基站 的基站主控单元中， 这是一个逻辑单元， 位于 BBU上， 可以和 BP位于同 一个物理实体上， 也可以分属于不同的物理实体上， 实现射频资源的调度。 该装置可以通过软件逻辑单元实现， 其结构如图 4所示， 包括： 故障检测 模块 10、 第一执行模块 20和第二执行模块 30。
故障检测模块 10, 用于当检测到发生故障的收发信机关联的所有 RRU 不可用时， 检测故障收发信机所属扇区内是否有空闲的 RRU, 若是时通知 第一执行模块 20, 否则通知第二执行模块 30。
第一执行模块 20,用于当所述故障检测模块 10检测到故障收发信机所 属扇区内存在空闲的 RRU时， 选择所属扇区内空闲的 RRU给所述故障收 发信机使用；否则查询其他扇区内是否存在空闲的临界 RRU;所述临界 RRU 为预先设置的可跨扇区调度的 RRU。
优选的， 上述第一执行模块 20, 还用于： 当故障检测模块 10检测到故 障收发信机所属扇区内不存在空闲的 RRU时，检测故障收发信机所属扇区 的信道是否都被占用； 当判断为是时， 再执行所述查询其他扇区内是否存 在空闲的临界 RRU的判断。
第二执行模块 30 ,用于当第一执行模块 20查找到其他扇区内存在空闲 的临界 RRU时， 选择其他扇区内空闲的临界 RRU给所述故障收发信机使 用。
优选的， 上述射频资源调度控制装置， 还包括： 第三执行模块 40和第 四执行模块 50。
第三执行模块 40 ,用于当第一执行模块 20查找到其他扇区内不存在空 闲的临界 RRU时， 查询其他扇区内已分配的临界 RRU的信道占用情况； 根据其他扇区内已分配的临界 RRU的信道占用情况， 查找是否存在可释放 的临界 RRU。
优选的， 上述第三执行模块 40, 具体用于根据其他扇区已分配的临界 RRU的未占用信道数量判断是否为可释放的 RRU, 当已分配的临界 RRU 的未占用信道数量在连续设定数量的第二检测周期内均超过设定的数量阈 值时， 确定该临界 RRU为可释放的临界 RRU。
第四执行模块 50, 用于当第三执行模块 40查找到存在可释放的临界 RRU时， 将可释放的临界 RRU给故障收发信机使用。
优选的， 上述射频资源调度控制装置， 还包括：
第五执行模块 60, 用于当第三执行模块 40确定不存在可释放的临界 RRU时，比较故障收发信机所属扇区的优先级与所有已分配临界 RRU所属 的扇区的优先级； 从优先级低于故障收发信机所属的扇区的优先级的扇区 中， 选择已分配临界 RRU给故障收发信机使用。
优选的， 上述第五执行模块 60, 具体用于选择优先级低于故障收发信 机所属的扇区的优先级的扇区中的已分配临界 RRU,判断选择的临界 RRU 是否与所属扇区内的收发信机绑定； 若是， 则重新选择优先级低于故障收 发信机所属的扇区的优先级的其他扇区中的已分配临界 RRU; 否则将选择 的已分配临界 RRU给故障收发信机使用。
本发明实施例提供的上述射频资源调度控制方法， 设置可跨扇区调度 的 RRU, 当收发信机自身所属扇区 RRU资源不足时，可以跨扇区调度空闲 的 RRU, 从而实现合理利用分布在各个扇区的临界 RRU, 优化网络资源调 度指标， 提高 RRU资源利用率和基站容灾性。
优选的， 在临界 RRU没有空闲时， 可以根据扇区的优先级确定是否释 放已分配的临界 RRU给故障收发信机使用， 从而保证高优先级扇区的需求 优先得到满足， 避免高优先级忙碌扇区因 RRU大量受损而性能指标下降， 这不仅提高了整个站点的资源使用率， 节省了系统资源， 彻底发挥了 BBU+RRU拉远架构的优势， 提高了整个系统的容错减灾能力。
本发明实施例提供的上述射频资源调度控制方法， 可适用于全球移动 通讯系统（ GSM, Global Sysctrl for Mobile Communication ) 的射频资源调 度管理， 也可适用于 3G等通信系统， 以解决无线基站的容灾容错问题。 此 外， 还可以将 RRU的配置从站点的调度管理上升至通信系统全网级别的调 度管理。
上述说明示出并描述了本发明的一个优选实施例， 但如前所述， 应当 理解本发明并非局限于本文所披露的形式， 不应看作是对其他实施例的排 除， 而可用于各种其他组合、 修改和环境， 并能够在本文所述发明构想范 围内， 通过上述教导或相关领域的技术或知识进行改动。 而本领域人员所 进行的改动和变化不脱离本发明的精神和范围， 则都应在本发明所附权利 要求的保护范围内。
工业实用性
本发明通过设置临界 RRU, 在检测到发生故障的收发信机关联的所有 RRU不可用且故障收发信机所属扇区内没有空闲 RRU时，调用其他扇区内 的临界 RRU给故障收发信机使用， 从而解决了某个扇区内因 RRU不足而 导致的通信业务不能正常进行的问题。

Claims

权利要求书
1、 一种射频资源调度控制方法， 其特征在于， 包括：
当检测到发生故障的收发信机关联的所有拉远射频单元 RRU 不可用 时， 检测故障收发信机所属扇区内是否有空闲的 RRU;
若是， 选择所属扇区内空闲的 RRU给所述故障收发信机使用； 若否， 查询其他扇区内是否存在空闲的临界 RRU;所述临界 RRU为预先设置的可 跨扇区调度的 RRU;
当查找到其他扇区内存在空闲的临界 RRU时， 选择其他扇区内空闲的 临界 RRU给所述故障收发信机使用。
2、 根据权利要求 1所述的方法， 其特征在于， 临界 RRU符合下列条 件：
临界 RRU与普通 RRU硬件配置相同；
临界 RRU安放位置位于所属扇区与其他扇区的相邻位置处； 临界 RRU配置为可跨扇区调度。
3、 根据权利要求 1所述的方法， 其特征在于， 所述检测到发生故障的 逻辑收发信机关联的所有 RRU不可用， 包括：
以设定的第一检测周期周期性检测各收发信机的工作状态；
当检测到有收发信机工作状态异常时， 轮询检测该发生故障的收发信 机所关联的所有 RRU是否都不可用， 当检测结果为是时， 确定检测到发生 故障的逻辑收发信机关联的所有 RRU不可用。
4、 根据权利要求 1所述的方法， 其特征在于， 所述查询其他扇区内是 否存在空闲的临界 RRU之前， 还包括：
检测故障收发信机所属扇区的信道是否都被占用； 当判断为是时， 再 执行所述查询其他扇区内是否存在空闲的临界 RRU的步驟。
5、 根据权利要求 1所述的方法， 其特征在于， 所述选择其他扇区内空 闲的临界 RRU给所述故障收发信机使用， 包括：
选择其他扇区内空闲的临界 RRU, 根据所述故障收发信机的需要， 配 置所述临界 RRU的 RRU参数和电调天线角度；
用配置后的临界 RRU代替故障收发信机之前使用的所属扇区的故障
6、 根据权利要求 1-5任一所述的方法， 其特征在于， 还包括： 当查找到其他扇区内不存在空闲的临界 RRU时， 查询其他扇区内已分 配的临界 RRU的信道占用情况；
根据其他扇区内已分配的临界 RRU的信道占用情况， 查找是否存在可 释放的临界 RRU;
当查找到存在可释放的临界 RRU时 , 将可释放的临界 RRU给所述故 障收发信机使用。
7、 根据权利要求 6所述的方法， 其特征在于， 所述根据其他扇区内已 分配的临界 RRU的信道占用情况，查找是否存在可释放的临界 RRU,包括： 根据其他扇区已分配的临界 RRU的未占用信道数量判断是否为可释放 的 RRU,当已分配的临界 RRU的未占用信道数量在连续设定数量的第二检 测周期内均超过设定的数量阈值时， 确定该临界 RRU 为可释放的临界
8、 根据权利要求 6所述的方法， 其特征在于， 还包括：
当不存在可释放的临界 RRU时， 比较所述故障收发信机所属扇区的优 先级与所有已分配临界 RRU所属的扇区的优先级；
从优先级低于故障收发信机所属的扇区的优先级的扇区中， 选择已分 配临界 RRU给所述故障收发信机使用。
9、 根据权利要求 8所述的方法， 其特征在于， 所述从优先级低于故障 收发信机所属的扇区的优先级的扇区中， 选择已分配临界 RRU给所述故障 收发信机使用， 包括：
选择优先级低于故障收发信机所属的扇区的优先级的扇区中的已分配 临界 RRU, 判断选择的临界 RRU是否与所属扇区内的收发信机绑定； 若是， 则重新选择优先级低于故障收发信机所属的扇区的优先级的其 他扇区中的已分配临界 RRU;否则将选择的已分配临界 RRU给所述故障收 发信机使用。
10、 一种射频资源调度控制装置， 其特征在于， 包括： 故障检测模块、 第一执行模块和第二执行模块；
故障检测模块， 用于当检测到发生故障的收发信机关联的所有拉远射 频单元 RRU不可用时， 检测故障收发信机所属扇区内是否有空闲的 RRU, 若是， 通知第一执行模块， 否则通知第二执行模块；
第一执行模块， 用于当所述故障检测模块检测到故障收发信机所属扇 区内存在空闲的 RRU时， 选择所属扇区内空闲的 RRU给所述故障收发信 机使用； 否则查询其他扇区内是否存在空闲的临界 RRU; 所述临界 RRU为 预先设置的可跨扇区调度的 RRU;
第二执行模块， 用于当第一执行模块查找到其他扇区内存在空闲的临 界 RRU时， 选择其他扇区内空闲的临界 RRU给所述故障收发信机使用。
11、 根据权利要求 10所述的装置， 其特征在于， 所述第一执行模块， 还用于：
当所述故障检测模块检测到故障收发信机所属扇区内不存在空闲的 RRU时，检测故障收发信机所属扇区的信道是否都被占用； 当判断为是时， 再执行所述查询其他扇区内是否存在空闲的临界 RRU的判断。
12、 根据权利要求 10或 11所述的装置， 其特征在于， 还包括： 第三执行模块， 用于当所述第一执行模块查找到其他扇区内不存在空 闲的临界 RRU时， 查询其他扇区内已分配的临界 RRU的信道占用情况； 根据其他扇区内已分配的临界 RRU的信道占用情况， 查找是否存在可释放 的临界 RRU;
第四执行模块， 用于当所述第三执行模块查找到存在可释放的临界 RRU时， 将可释放的临界 RRU给所述故障收发信机使用。
13、 根据权利要求 12所述的装置， 其特征在于， 所述第三执行模块， 用于：
根据其他扇区已分配的临界 RRU的未占用信道数量判断是否为可释放 的 RRU,当已分配的临界 RRU的未占用信道数量在连续设定数量的第二检 测周期内均超过设定的数量阈值时， 确定该临界 RRU 为可释放的临界
14、 根据权利要求 12所述的装置， 其特征在于， 还包括： 第五执行模 块， 用于：
当所述第三执行模块确定不存在可释放的临界 RRU时， 比较所述故障 收发信机所属扇区的优先级与所有已分配临界 RRU所属的扇区的优先级； 从优先级低于故障收发信机所属的扇区的优先级的扇区中， 选择已分 配临界 RRU给所述故障收发信机使用。
15、 根据权利要求 14所述的装置， 其特征在于， 所述第五执行模块， 用于：
选择优先级低于故障收发信机所属的扇区的优先级的扇区中的已分配 临界 RRU, 判断选择的临界 RRU是否与所属扇区内的收发信机绑定； 若是， 则重新选择优先级低于故障收发信机所属的扇区的优先级的其 他扇区中的已分配临界 RRU;否则将选择的已分配临界 RRU给所述故障收 发信机使用。
16、 一种基站， 其特征在于， 包括： 如权利要求 10-15任一所述的射频 资源调度装置。
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