WO2013166686A1 - Operating carrier interference coordination method and base station - Google Patents

Operating carrier interference coordination method and base station Download PDF

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Publication number
WO2013166686A1
WO2013166686A1 PCT/CN2012/075292 CN2012075292W WO2013166686A1 WO 2013166686 A1 WO2013166686 A1 WO 2013166686A1 CN 2012075292 W CN2012075292 W CN 2012075292W WO 2013166686 A1 WO2013166686 A1 WO 2013166686A1
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WO
WIPO (PCT)
Prior art keywords
interference
base station
carrier
operating
indication
Prior art date
Application number
PCT/CN2012/075292
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French (fr)
Chinese (zh)
Inventor
吴联海
常宁娟
汪巍崴
徐海博
Original Assignee
富士通株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士通株式会社 filed Critical 富士通株式会社
Priority to PCT/CN2012/075292 priority Critical patent/WO2013166686A1/en
Priority to CN201280069067.XA priority patent/CN104094635A/en
Publication of WO2013166686A1 publication Critical patent/WO2013166686A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Definitions

  • the present invention relates to the field of communications, and in particular, to an interference coordination method for operating a carrier and a base station.
  • Background Art In order to improve user equipment coverage under an enhanced long-term evolution (LTE-A: LTE-Advanced) system, and improve system throughput and user data transmission rate, heterogeneous network nodes are introduced.
  • these heterogeneous network nodes include a home base station (HeNB, Home eNodeB), a hotspot coverage cell (Pico-cell), and the like.
  • HeNB home base station
  • Pico-cell hotspot coverage cell
  • These heterogeneous network nodes use a lower transmit power to cover a specific area or user equipment, and the networking mode is relatively flexible.
  • FIG. 1 is a schematic diagram of a scenario in which a macro cell and a micro cell coexist in a heterogeneous network.
  • a macro base station Mocro eNB
  • a micro base station for example, a Pico eNB, but not limited thereto
  • a micro user equipment for example, a Pico UE
  • the Pico cell uses the coverage extension technology, the downlink transmission of the Macro base station may cause strong interference to the downlink transmission of the Pico; the user equipment of the cell range extension area (CRE) of the Pico cell will be greatly interfered by the Macro cell.
  • CRE cell range extension area
  • Operation carrier selection is one of the methods for solving downlink interference.
  • the base station may be selected to be deactivated, or the interfering base station may be deactivated.
  • the inventors have found that the prior art has the following drawbacks: For the operating carrier that the base station does not currently use, the neighboring cell does not inform the relevant interference information, so that the base station cannot judge to select the newly opened operation. Whether the carrier will generate strong interference to the neighboring base station; when the base station is subjected to strong downlink interference, the current mechanism has no way to notify the neighboring cell, so that the neighboring cell can take measures, and only the base station itself can adopt the method of reducing interference, or even deactivate the operation. Carrier; If the base station is subjected to strong interference as the primary cell, the deactivation of the primary cell will result in a large number of user equipment handovers, resulting in network instability.
  • the embodiments of the present invention provide an interference coordination method for operating a carrier and a base station, and the purpose is to perform interference coordination when the operating carrier receives downlink interference, so as to avoid network instability caused by switching of a large number of user equipments.
  • an interference coordination method for operating a carrier includes:
  • the base station determines, when the operational carrier is subjected to downlink interference, whether the operational carrier is an operational carrier used for interference coordination;
  • the base station transmits a downlink interference indication including interference level information to the neighbor base station.
  • an interference coordination method for operating a carrier includes:
  • the neighboring base station receives the downlink interference indication sent by the base station, where the downlink interference indication includes information on the degree of interference on the operating carrier;
  • a base station includes: a carrier determining unit, when the operating carrier is subjected to downlink interference, determining whether the operating carrier is an operational carrier used for interference coordination;
  • the indication sending unit sends a downlink interference indication including the interference level information to the neighbor base station when the operation carrier is not an operation carrier for interference coordination.
  • a base station includes: an indication receiving unit, and a downlink interference indication sent by a neighboring base station, where the downlink interference indication includes information on a degree of interference on an operation carrier;
  • the carrier operation unit operates the operation carrier according to the downlink interference indication.
  • a computer readable program is provided, wherein When the program is executed in a base station, the program causes a computer to perform an interference coordination method of an operation carrier as described above in the base station.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an interference coordination method of an operation carrier as described above in a base station.
  • An advantageous effect of the embodiment of the present invention is that, when the interfered operation carrier is not an operation carrier for interference coordination, the base station sends a downlink interference indication to the neighbor base station, so that the neighbor base station processes the operation carrier according to the downlink interference indication. Not only can the neighbor base station be notified of interference, but it can also effectively prevent the switching of a large number of user equipments and avoid network instability.
  • FIG. 1 is a diagram showing an example of interference coexistence in the prior art
  • 2 is a flowchart of an interference coordination method according to Embodiment 1 of the present invention
  • FIG. 3 is still another flowchart of an interference coordination method according to Embodiment 1 of the present invention
  • FIG. 5 is a flowchart of an interference coordination method according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic structural diagram of a base station according to Embodiment 3 of the present invention.
  • Figure 7 is a block diagram showing still another structure of a base station according to Embodiment 3 of the present invention.
  • FIG. 8 is a schematic diagram showing still another structure of a base station according to Embodiment 3 of the present invention.
  • Figure 9 is a block diagram showing the structure of a base station according to a fourth embodiment of the present invention.
  • an operation and maintenance network element can configure an operation carrier for each base station, and inform the base station among the configured operational carriers, which are operational carriers for interference coordination, and which are not used for interference. Coordinated operational carrier.
  • the operational carrier used for interference coordination may be preferentially configured as SCell (Second Cell), and the operational carrier not used for interference coordination may be preferentially configured as a PCell (Primary CelDo, so as to avoid mutual interference between PCells as much as possible). Interference occurs, and more often, PCell and SCell interfere with each other.
  • SCell Second Cell
  • PCell Primary CelDo
  • carrier information can be interactively operated through the X2 interface.
  • Each base station can inform the neighbor base station which operational carriers are operational carriers for interference coordination. Moreover, each base station can also inform the neighbor base station which operational carriers have been used.
  • the embodiment of the invention provides an interference coordination method for operating a carrier, which is applied to a base station side.
  • 2 is a flowchart of an interference coordination method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step 201 When the operating carrier receives downlink interference, determine whether the operating carrier is Operation carrier for interference coordination;
  • Step 202 If the operation carrier is not an operation carrier used for interference coordination, the base station sends a downlink interference indication including interference level information to the neighbor base station.
  • the interfered operation carrier is not used for interference coordination, it is likely that a large number of user equipments configure the operation carrier as a PCell. If the base station itself adopts a process of reducing interference, or directly deactivates the operation carrier, It will directly affect the performance of the user equipment, or lead to a large number of handovers.
  • the present invention does not process the downlink interference indication to the neighbor base station when the interfered operation carrier is not used for interference coordination, and the neighbor base station performs interference reduction processing on the operation carrier, which can effectively prevent a large number of users. Switch the device to avoid network instability.
  • the downlink interference indication may be transmitted in a Load Indication message.
  • the degree of interference may include high interference, medium interference, and low interference. For example, “01” may be used to indicate high interference information, "10” to indicate medium interference information, and "11” to indicate low interference information. However, it is not limited to this, and specific messages or implementation methods may be determined according to actual conditions.
  • FIG. 3 is still another flowchart of the interference coordination method according to the embodiment of the present invention. As shown in FIG. 3, the method includes:
  • Step 301 The operating carrier of the base station is subjected to downlink interference.
  • Step 302 The base station determines whether the operation carrier is an operation carrier used for interference coordination; if it is an operation carrier used for interference coordination, step 303 is performed; if it is not an operation carrier used for interference coordination, step 304 is performed. .
  • Step 303 The base station performs a load reduction operation or a deactivation operation on the operation carrier.
  • the operation carrier is preferentially configured as an SCell, and the user equipment can reduce interference processing by reducing load, deactivating, etc., because the carrier is basically It will be configured as SCell, so the impact on the user equipment is not large. Therefore, the base station may not send an interference indication to the neighbor base station, but solve it by itself.
  • the solutions solved therein may include: reducing the load or deactivating.
  • the base station can directly reduce the load or directly deactivate it. In addition, it can also reduce the load first. If the downlink interference is still relatively large after adopting the scheme, the base station can deactivate the carrier and notify the neighboring base station.
  • Step 304 The base station determines the degree of interference on the operating carrier.
  • the degree of interference may include: high interference, medium interference and low interference.
  • the present invention is not limited thereto, and for example, it may include only high interference and low interference, etc., and a specific manner may be determined according to actual conditions. The following is a detailed description of high interference, medium interference, and low interference.
  • the base station may determine the degree of interference according to the reference signal receiving quality (RSRQ) of the user equipment, or determine the degree of interference according to the average bit error rate.
  • RSRQ reference signal receiving quality
  • the present invention is not limited thereto, and other methods may be employed to determine the degree of interference.
  • ⁇ > it can be determined as high interference. If ⁇ ⁇ , it can be determined as medium interference, such as ⁇ ⁇ 2 ⁇ ⁇ > ⁇ , then it can be determined as low interference.
  • the empirical value can be determined in advance according to the actual scenario. As for how to obtain the RSRQ, reference can be made to the prior art.
  • Step 305 The base station sends a downlink interference indication to the neighbor base station, where the downlink interference indication includes information about the degree of interference.
  • the downlink interference indication may include three states: high interference, medium interference, and low interference; the downlink interference indication may be transmitted in a Load Indication message. After the neighbor base station receives the downlink interference indication, the operation carrier may be processed.
  • the interference can be mitigated by reducing the transmission power or reducing the load.
  • the neighboring base station still receives the high-interference downlink interference indication, and the neighboring base station can deactivate the operation carrier; if after reducing the transmission power and reducing the load, The neighboring base station receives the downlink interference indication of the interference, and if the neighbor base station has an alternate operation carrier or the load is not heavy, the neighbor base station may deactivate the operation carrier; if after reducing the transmission power and reducing the load amount, If the neighboring base station receives the low-interference downlink interference indication, the neighboring base station may not take further measures. For example, if the base station sends the downlink interference indication of the interference to the interfering neighbor base station, after receiving the downlink interference indication, the neighboring base station may mitigate the interference by reducing the transmission power or reducing the load.
  • the neighboring base station receives the downlink interference indication with high interference, and the neighboring base station can deactivate the operation carrier; if after reducing the transmission power and reducing the load, etc., The neighbor base station still receives the downlink interference indication of the interference, and if the neighbor base station has an alternate operation carrier or the load is not heavy, the neighbor base station can deactivate the operation carrier; if the transmission power is reduced and the load is reduced, If the neighboring base station receives the low-interference downlink interference indication, the neighboring base station may not take further measures.
  • the neighbor base station may not need to take measures to mitigate the interference to the neighbor base station.
  • the operation of determining the degree of interference in Figure 3 is performed after step 302, and when the operational carrier is used for interference coordination, there is no need to determine the degree of interference.
  • the operation of determining the degree of interference in step 304 of FIG. 3 may be performed after step 301 and before step 302, that is, the degree of interference may be determined immediately after the operating carrier is subjected to downlink interference.
  • FIG. 4 is still another flowchart of the interference coordination method according to the embodiment of the present invention. As shown in FIG. 4, the method includes:
  • Step 401 The operating carrier of the base station is subjected to downlink interference.
  • Step 402 The base station determines the degree of interference on the operating carrier.
  • Step 403 The base station determines whether the operation carrier is an operation carrier used for interference coordination; if it is an operation carrier used for interference coordination, performing step 404; if it is not an operation carrier for interference coordination, performing step 405 .
  • Step 404 The base station performs a load reduction operation or a deactivation operation on the operation carrier.
  • Step 405 The base station sends a downlink interference indication to the neighbor base station, where the downlink interference indication includes information about the degree of interference.
  • the base station sends a downlink interference indication to the neighbor base station when the interfered operation carrier is not the operation carrier for interference coordination, so that the neighbor base station processes the operation carrier according to the downlink interference indication. Not only can notify neighbor base stations of interference Moreover, it can effectively prevent the switching of a large number of user equipments, and avoid the situation of network instability.
  • Example 2
  • FIG. 5 is a flowchart of an interference coordination method according to an embodiment of the present invention. As shown in FIG. 5, the method includes:
  • Step 501 The neighboring base station receives a downlink interference indication sent by the base station, where the downlink interference indication includes information about a degree of interference on the operating carrier.
  • Step 502 The neighboring base station operates the operation carrier according to the downlink interference indication.
  • the degree of interference may include: high interference, medium interference, and low interference.
  • the present invention is not limited thereto, and other specific degrees of interference may be employed.
  • the operation of the operation carrier by the neighboring base station according to the downlink interference indication may include: reducing the transmission power or reducing the load amount for the operation carrier. If the downlink interference indication includes low interference information, the neighbor base station may not process the operation carrier.
  • the neighbor base station can also receive the downlink interference indication including the high interference information after reducing the transmission power or reducing the load amount, the neighbor base station can perform the operation of deactivating the operation carrier.
  • the neighboring base station can also receive the downlink interference indication including the medium interference information after reducing the transmission power or reducing the load amount, and the neighbor base station has an alternative operation carrier or the load quantity is not heavy, the neighbor base station can perform the operation carrier. Activated operation.
  • the base station sends a downlink interference indication to the neighbor base station when the interfered operation carrier is not the operation carrier for interference coordination, so that the neighbor base station processes the operation carrier according to the downlink interference indication. It can effectively prevent the switching of a large number of user equipments and avoid network instability.
  • the embodiment of the present invention provides a base station, which corresponds to the interference I and the adjustment method of the operation carrier in the embodiment 1, and the same content as that of the embodiment 1 is not described herein.
  • Figure 6 is a block diagram of a base station according to an embodiment of the present invention. As shown in FIG. 6, the base station 600 includes: a carrier determining unit 601 and an indication transmitting unit 602; other parts of the base station 600 are not shown, and reference may be made to the prior art.
  • the carrier determining unit 601 is configured to determine, when the operating carrier is subjected to downlink interference, whether the operating carrier is an operational carrier used for interference coordination, and the indication sending unit 602, when the operating carrier is not an operational carrier used for interference coordination, to the neighboring base station.
  • a downlink interference indication including information on the degree of interference is transmitted.
  • the downlink interference indication may be transmitted in a Load Indication message.
  • the present invention is not limited thereto, and other messages may be employed in the specific implementation.
  • Fig. 7 is still another block diagram of a base station according to an embodiment of the present invention. As shown in FIG. 7, the base station
  • 700 includes: a carrier determination unit 601 and an indication transmission unit 602, as described above.
  • the base station 700 may further include a carrier operation unit 703, configured to perform a load reduction operation on the operation carrier when the operation carrier is an operation carrier for interference coordination, or perform Deactivated operation.
  • a carrier operation unit 703 configured to perform a load reduction operation on the operation carrier when the operation carrier is an operation carrier for interference coordination, or perform Deactivated operation.
  • the base station 700 may further include: an interference determining unit 704, configured to determine a degree of interference on the operating carrier; the degree of interference may include: high interference, medium interference, and low interference.
  • the interference determining unit 704 may determine the degree of interference according to the reference signal receiving quality of the user equipment, or may determine the degree of interference according to the average bit error rate.
  • Fig. 8 is still another block diagram of a base station according to an embodiment of the present invention.
  • the base station 800 includes: a carrier determining unit 601, an indication transmitting unit 602, a carrier operating unit 703, and an interference determining unit 704, as described above.
  • the interference determining unit 704 can first determine the degree of interference on the operating carrier when the operational carrier of the base station is subjected to downlink interference. Then, the carrier judgment unit 601 determines whether the operation carrier is used for interference coordination.
  • the base station sends a downlink interference indication to the neighbor base station when the interfered operation carrier is not the operation carrier for interference coordination, so that the neighbor base station processes the operation carrier according to the downlink interference indication. Not only can the neighbor base station be disturbed, but also can effectively prevent the switching of a large number of user equipments, avoiding network instability.
  • Example 4
  • the embodiment of the present invention provides a method for the interference coordination of the base station corresponding to the operation carrier in the second embodiment, and the same content as the second embodiment is not described herein.
  • FIG. 9 is a schematic diagram showing the structure of a base station according to an embodiment of the present invention.
  • the base station 900 includes: an indication receiving unit 901 and a carrier operating unit 902; other parts of the base station 900 are not shown, and reference may be made to the prior art.
  • the indication receiving unit 901 receives the downlink interference indication sent by the other base station, where the downlink interference indication includes information on the degree of interference on the operating carrier; the carrier operation unit 902 operates the operation carrier according to the downlink interference indication.
  • the degree of interference may include: high interference, medium interference, and low interference.
  • the present invention is not limited thereto, and a specific embodiment may be determined according to actual conditions.
  • the carrier operation unit 902 may be specifically configured to: reduce the transmission power or reduce the load amount for the operation carrier. If the downlink interference indication includes low interference information, the base station 900 may not process the operational carrier.
  • the carrier operation unit 902 is further configured to: after the receiving unit 901 further receives the downlink interference indication including the high interference information, after the transmission power is reduced or the amount of the load is reduced, the operating carrier is deactivated. operating.
  • the carrier operation unit 902 may be further configured to: after reducing the transmit power or reduce the load, indicating that the receiving unit 901 further receives the downlink interference indication including the medium interference information, and the base station 900 has an alternate operation carrier. Or when the load is not heavy, the operation carrier is deactivated.
  • the base station sends a downlink interference indication to the neighbor base station when the interfered operation carrier is not the operation carrier for interference coordination, so that the neighbor base station processes the operation carrier according to the downlink interference indication. It can effectively prevent the switching of a large number of user equipments and avoid network instability.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a base station, the program causes the computer to perform interference of the operation carrier as described above in the base station Coordination method.
  • Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an interference coordination method of an operation carrier as described above in a base station.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or a step.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

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Abstract

Embodiments of the present invention provide an operating carrier interference coordination method and base station. The method comprises: when an operating carrier is subject to downlink interference, a base station determining whether the operating carrier is an operating carrier for interference coordination; and if the operating carrier is not the operating carrier for interference coordination, the base station sending a downlink interference indication to a neighboring base station. By means of the embodiments of the present invention, the neighboring base station is informed of interference situations; moreover, handover of a large amount of user equipments is effectively prevented, thereby avoiding network instability.

Description

操作载波的干扰协调方法及基站 技术领域  Interference coordination method for operating carrier and base station
本发明涉及一种通信领域， 特别涉及一种操作载波的干扰协调方法 及基站。 背景技术 为了改善增强的长期演进 （LTE-A: LTE-Advanced)***下的用户设 备覆盖， 提高***的吞吐量和用户的数据传输速率， 引入了异构网节点。 例如， 这些异构网节点包括家庭基站 （HeNB , Home eNodeB ) , 热点覆 盖小区 （Pico-cell) 等。 这些异构网节点使用较低的发射功率， 对特定的 区域或用户设备进行覆盖， 组网方式相对灵活。  The present invention relates to the field of communications, and in particular, to an interference coordination method for operating a carrier and a base station. Background Art In order to improve user equipment coverage under an enhanced long-term evolution (LTE-A: LTE-Advanced) system, and improve system throughput and user data transmission rate, heterogeneous network nodes are introduced. For example, these heterogeneous network nodes include a home base station (HeNB, Home eNodeB), a hotspot coverage cell (Pico-cell), and the like. These heterogeneous network nodes use a lower transmit power to cover a specific area or user equipment, and the networking mode is relatively flexible.
图 1是异构网络中宏小区和微小区共存的场景示意图。如图 1所示， 宏基站（Macro eNB)可以为宏用户设备（Macro UE)提供服务， 微基站 (例如 Pico eNB, 但不限于此）可以为微用户设备（例如 Pico UE)提供 服务。 如果 Pico小区运用了覆盖扩展技术， Macro基站的下行传输可能 将对 Pico的下行传输产生强干扰； Pico小区的小区范围扩展区域（CRE) 的用户设备将受到 Macro小区的较大干扰。  FIG. 1 is a schematic diagram of a scenario in which a macro cell and a micro cell coexist in a heterogeneous network. As shown in FIG. 1, a macro base station (Macro eNB) can provide services for a macro user equipment (Macro UE), and a micro base station (for example, a Pico eNB, but not limited thereto) can provide services for a micro user equipment (for example, a Pico UE). If the Pico cell uses the coverage extension technology, the downlink transmission of the Macro base station may cause strong interference to the downlink transmission of the Pico; the user equipment of the cell range extension area (CRE) of the Pico cell will be greatly interfered by the Macro cell.
在异构网络中， 这种强干扰不仅出现在数据信道， 控制信道也会受 到强干扰。 因此， 在异构网络中， 下行强干扰是个亟待解决的问题。 操 作载波选择是解决下行干扰的方法之一， 即当基站的某载波出现干扰时， 可以选择本基站去激活， 或者让干扰基站对相关载波进行去激活。  In heterogeneous networks, this strong interference occurs not only in the data channel, but also in the control channel. Therefore, in heterogeneous networks, strong downlink interference is an urgent problem to be solved. Operation carrier selection is one of the methods for solving downlink interference. When a carrier of a base station experiences interference, the base station may be selected to be deactivated, or the interfering base station may be deactivated.
但是， 在实现本发明的过程中， 发明人发现现有技术的缺陷在于： 对于基站目前没有正在使用的操作载波， 邻小区不会告知相关的干扰信 息， 从而该基站无法判断选择新开启的操作载波是否会对邻居基站产生 强干扰； 当基站受到强下行干扰时， 目前的机制也没有办法通知邻小区， 让邻小区采取措施， 而只能基站自身采取减少干扰的方法， 甚至去激活 该操作载波； 如果基站受到强干扰的载波为主小区， 主小区的去激活会 导致大量的用户设备切换， 从而造成网络的不稳定。 应该注意， 上面对技术背景的介绍只是为了方便对本发明的技术方 案进行清楚、 完整的说明， 并方便本领域技术人员的理解而阐述的。 不 能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技 术方案为本领域技术人员所公知。 发明内容 However, in the process of implementing the present invention, the inventors have found that the prior art has the following drawbacks: For the operating carrier that the base station does not currently use, the neighboring cell does not inform the relevant interference information, so that the base station cannot judge to select the newly opened operation. Whether the carrier will generate strong interference to the neighboring base station; when the base station is subjected to strong downlink interference, the current mechanism has no way to notify the neighboring cell, so that the neighboring cell can take measures, and only the base station itself can adopt the method of reducing interference, or even deactivate the operation. Carrier; If the base station is subjected to strong interference as the primary cell, the deactivation of the primary cell will result in a large number of user equipment handovers, resulting in network instability. It should be noted that the above description of the technical background is only for the purpose of facilitating the clear and complete description of the technical solutions of the present invention, and is convenient for understanding by those skilled in the art. The above technical solutions are not considered to be well known to those skilled in the art simply because these aspects are set forth in the background section of the present invention. Summary of the invention
本发明实施例提供一种操作载波的干扰协调方法及基站， 目的在于 在操作载波收到下行干扰时进行干扰协调， 避免出现大量用户设备的切 换而造成的网络不稳定。  The embodiments of the present invention provide an interference coordination method for operating a carrier and a base station, and the purpose is to perform interference coordination when the operating carrier receives downlink interference, so as to avoid network instability caused by switching of a large number of user equipments.
根据本发明实施例的一个方面， 提供一种操作载波的干扰协调方法， 所述方法包括：  According to an aspect of the embodiments of the present invention, an interference coordination method for operating a carrier is provided, where the method includes:
基站在操作载波受到下行干扰时， 判断所述操作载波是否为用于干 扰协调的操作载波；  The base station determines, when the operational carrier is subjected to downlink interference, whether the operational carrier is an operational carrier used for interference coordination;
若所述操作载波不是用于干扰协调的操作载波， 所述基站向邻居基 站发送包括受干扰程度信息的下行干扰指示。  If the operational carrier is not an operational carrier for interference coordination, the base station transmits a downlink interference indication including interference level information to the neighbor base station.
根据本发明实施例的又一个方面， 提供一种操作载波的干扰协调方 法， 所述方法包括：  According to still another aspect of the embodiments of the present invention, an interference coordination method for operating a carrier is provided, where the method includes:
邻居基站接收基站发送的下行干扰指示， 其中所述下行干扰指示包 括在操作载波上受干扰程度的信息；  The neighboring base station receives the downlink interference indication sent by the base station, where the downlink interference indication includes information on the degree of interference on the operating carrier;
所述邻居基站根据所述下行干扰指示对所述操作载波进行操作。 根据本发明实施例的又一个方面， 提供一种基站， 所述基站包括： 载波判断单元， 在操作载波受到下行干扰时， 判断所述操作载波是 否为用于干扰协调的操作载波；  The neighboring base station operates the operation carrier according to the downlink interference indication. According to still another aspect of the embodiments of the present invention, a base station is provided, where the base station includes: a carrier determining unit, when the operating carrier is subjected to downlink interference, determining whether the operating carrier is an operational carrier used for interference coordination;
指示发送单元， 在所述操作载波不是用于干扰协调的操作载波时， 向邻居基站发送包括受干扰程度信息的下行干扰指示。  The indication sending unit sends a downlink interference indication including the interference level information to the neighbor base station when the operation carrier is not an operation carrier for interference coordination.
根据本发明实施例的又一个方面， 提供一种基站， 所述基站包括： 指示接收单元， 接收邻居基站发送的下行干扰指示， 其中所述下行 干扰指示包括在操作载波上受干扰程度的信息；  According to still another aspect of the present invention, a base station is provided, where the base station includes: an indication receiving unit, and a downlink interference indication sent by a neighboring base station, where the downlink interference indication includes information on a degree of interference on an operation carrier;
载波操作单元， 根据所述下行干扰指示对所述操作载波进行操作。 根据本发明实施例的又一个方面， 提供一种计算机可读程序， 其中 当在基站中执行所述程序时， 所述程序使得计算机在所述基站中执行如 上所述的操作载波的干扰协调方法。 The carrier operation unit operates the operation carrier according to the downlink interference indication. According to still another aspect of an embodiment of the present invention, a computer readable program is provided, wherein When the program is executed in a base station, the program causes a computer to perform an interference coordination method of an operation carrier as described above in the base station.
根据本发明实施例的又一个方面， 提供一种存储有计算机可读程序 的存储介质， 其中所述计算机可读程序使得计算机在基站中执行如上所 述的操作载波的干扰协调方法。  According to still another aspect of an embodiment of the present invention, a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an interference coordination method of an operation carrier as described above in a base station.
本发明实施例的有益效果在于， 通过基站在受干扰的操作载波不是 用于干扰协调的操作载波时， 向邻居基站发送下行干扰指示， 使得邻居 基站根据下行干扰指示对该操作载波进行处理。 不仅可以通知邻居基站 受干扰的情况； 而且可以有效防止大量用户设备的切换， 避免出现网络 不稳定的情况。  An advantageous effect of the embodiment of the present invention is that, when the interfered operation carrier is not an operation carrier for interference coordination, the base station sends a downlink interference indication to the neighbor base station, so that the neighbor base station processes the operation carrier according to the downlink interference indication. Not only can the neighbor base station be notified of interference, but it can also effectively prevent the switching of a large number of user equipments and avoid network instability.
参照后文的说明和附图， 详细公开了本发明的特定实施方式， 指明 了本发明的原理可以被采用的方式。 应该理解， 本发明的实施方式在范 围上并不因而受到限制。 在所附权利要求的精神和条款的范围内， 本发 明的实施方式包括许多改变、 修改和等同。  Specific embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings. It should be understood that the embodiments of the invention are not limited in scope. The embodiments of the present invention include many variations, modifications, and equivalents within the scope of the appended claims.
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在 一个或更多个其它实施方式中使用， 与其它实施方式中的特征相组合， 或替代其它实施方式中的特征。  Features described and/or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, in combination with, or in place of, features in other embodiments. .
应该强调， 术语"包括 /包含"在本文使用时指特征、 整件、 歩骤或组 件的存在， 但并不排除一个或更多个其它特征、 整件、 歩骤或组件的存 在或附加。 附图说明  It should be emphasized that the term "comprising" or "comprising", when used herein, refers to the presence of a feature, component, step or component, but does not exclude the presence or addition of one or more other features, components, steps or components. DRAWINGS
参照以下的附图可以更好地理解本发明的很多方面。 附图中的部件 不是成比例绘制的， 而只是为了示出本发明的原理。 为了便于示出和描 述本发明的一些部分， 附图中对应部分可能被放大或縮小。  Many aspects of the invention can be better understood with reference to the following drawings. The components in the figures are not drawn to scale, but only to illustrate the principles of the invention. In order to facilitate the illustration and description of some parts of the invention, the corresponding parts in the figures may be enlarged or reduced.
在本发明的一个附图或一种实施方式中描述的元素和特征可以与一 个或更多个其它附图或实施方式中示出的元素和特征相结合。 此外， 在 附图中， 类似的标号表示几个附图中对应的部件， 并可用于指示多于一 种实施方式中使用的对应部件。  Elements and features described in one of the figures or an embodiment of the invention may be combined with elements and features illustrated in one or more other figures or embodiments. In the accompanying drawings, like reference numerals refer to the
图 1是现有技术中干扰共存的示例图； 图 2是本发明实施例 1的干扰协调方法的一流程图； 图 3是本发明实施例 1的干扰协调方法的又一流程图； 1 is a diagram showing an example of interference coexistence in the prior art; 2 is a flowchart of an interference coordination method according to Embodiment 1 of the present invention; FIG. 3 is still another flowchart of an interference coordination method according to Embodiment 1 of the present invention;
图 4是本发明实施例 1的干扰协调方法的又一流程图；  4 is still another flowchart of the interference coordination method according to Embodiment 1 of the present invention;
图 5是本发明实施例 2的干扰协调方法的流程图；  Figure 5 is a flowchart of an interference coordination method according to Embodiment 2 of the present invention;
图 6是本发明实施例 3的基站的一构成示意图；  6 is a schematic structural diagram of a base station according to Embodiment 3 of the present invention;
图 7是本发明实施例 3的基站的又一构成示意图；  Figure 7 is a block diagram showing still another structure of a base station according to Embodiment 3 of the present invention;
图 8是本发明实施例 3的基站的又一构成示意图；  8 is a schematic diagram showing still another structure of a base station according to Embodiment 3 of the present invention;
图 9是本发明实施例 4的基站的一构成示意图。  Figure 9 is a block diagram showing the structure of a base station according to a fourth embodiment of the present invention.
具体实施方式 detailed description
参照附图， 通过下面的说明书， 本发明的前述以及其它特征将变得 明显。 在说明书和附图中， 具体公开了本发明的特定实施方式， 其表明 了其中可以采用本发明的原则的部分实施方式， 应了解的是， 本发明不 限于所描述的实施方式， 相反， 本发明包括落入所附权利要求的范围内 的全部修改、 变型以及等同物。  The foregoing and other features of the present invention will be apparent from the The specific embodiments of the present invention are disclosed in the specification and the drawings, which are illustrated in the embodiments of the invention The invention includes all modifications, variations and equivalents falling within the scope of the appended claims.
在本发明中， 操作维护网元（OAM， Operation and Management)可 以为每个基站配置操作载波， 并且告知基站在配置的操作载波中， 哪些 是用于干扰协调的操作载波， 哪些不是用于干扰协调的操作载波。  In the present invention, an operation and maintenance network element (OAM) can configure an operation carrier for each base station, and inform the base station among the configured operational carriers, which are operational carriers for interference coordination, and which are not used for interference. Coordinated operational carrier.
其中， 用于干扰协调的操作载波可以优先被配置为 SCell ( Second Cell ) , 不用于干扰协调的操作载波可以优先被配置为 PCell ( Primary CelDo从而可以达到尽量避开 PCell之间的相互干扰。如果出现干扰， 更 多的情况是 PCell和 SCell相互干扰。  The operational carrier used for interference coordination may be preferentially configured as SCell (Second Cell), and the operational carrier not used for interference coordination may be preferentially configured as a PCell (Primary CelDo, so as to avoid mutual interference between PCells as much as possible). Interference occurs, and more often, PCell and SCell interfere with each other.
在本发明中，可以通过 X2接***互操作载波信息。每个基站可以通 知邻居基站， 哪些操作载波是用于干扰协调的操作载波。 并且， 每个基 站也可以通知邻居基站， 哪些操作载波已经被使用。  In the present invention, carrier information can be interactively operated through the X2 interface. Each base station can inform the neighbor base station which operational carriers are operational carriers for interference coordination. Moreover, each base station can also inform the neighbor base station which operational carriers have been used.
实施例 1  Example 1
本发明实施例提供一种操作载波的干扰协调方法， 应用于基站侧。 图 2是本发明实施例的干扰协调方法的一流程图， 如图 2所示， 所述方 法包括：  The embodiment of the invention provides an interference coordination method for operating a carrier, which is applied to a base station side. 2 is a flowchart of an interference coordination method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
歩骤 201，基站在操作载波受到下行干扰时，判断该操作载波是否为 用于干扰协调的操作载波； Step 201: When the operating carrier receives downlink interference, determine whether the operating carrier is Operation carrier for interference coordination;
歩骤 202，若该操作载波不是用于干扰协调的操作载波，该基站向邻 居基站发送包括受干扰程度信息的下行干扰指示。  Step 202: If the operation carrier is not an operation carrier used for interference coordination, the base station sends a downlink interference indication including interference level information to the neighbor base station.
在本实施例中， 如果受到干扰的操作载波不用于干扰协调， 则很可 能有大量的用户设备配置该操作载波为 PCell, 如果由本基站自身采取减 少干扰的处理， 或者直接去激活该操作载波， 则会直接影响用户设备的 性能， 或者导致大量切换。  In this embodiment, if the interfered operation carrier is not used for interference coordination, it is likely that a large number of user equipments configure the operation carrier as a PCell. If the base station itself adopts a process of reducing interference, or directly deactivates the operation carrier, It will directly affect the performance of the user equipment, or lead to a large number of handovers.
因此， 本发明在受到干扰的操作载波不用于干扰协调时， 不由本基 站自身进行处理， 而是发送下行干扰指示给邻居基站， 由邻居基站对该 操作载波进行降低干扰处理， 可以有效防止大量用户设备的切换， 避免 出现网络不稳定的情况。  Therefore, the present invention does not process the downlink interference indication to the neighbor base station when the interfered operation carrier is not used for interference coordination, and the neighbor base station performs interference reduction processing on the operation carrier, which can effectively prevent a large number of users. Switch the device to avoid network instability.
在本实施例中， 下行干扰指示可以在 Load Indication消息中传输。 受干扰程度可以包括高干扰、 中干扰和低干扰， 例如可以用 " 01 "表示 高干扰信息， 用 " 10 "表示中干扰信息， 用 " 11 "表示低干扰信息。 但 不限于此， 还可以根据实际情况确定具体的消息或实施方式。  In this embodiment, the downlink interference indication may be transmitted in a Load Indication message. The degree of interference may include high interference, medium interference, and low interference. For example, "01" may be used to indicate high interference information, "10" to indicate medium interference information, and "11" to indicate low interference information. However, it is not limited to this, and specific messages or implementation methods may be determined according to actual conditions.
图 3是本发明实施例的干扰协调方法的又一流程图， 如图 3所示， 所述方法包括：  FIG. 3 is still another flowchart of the interference coordination method according to the embodiment of the present invention. As shown in FIG. 3, the method includes:
歩骤 301， 基站的操作载波受到下行干扰。  Step 301: The operating carrier of the base station is subjected to downlink interference.
歩骤 302，基站判断该操作载波是否为用于干扰协调的操作载波；如 果是用于干扰协调的操作载波， 则执行歩骤 303 ; 如果不是用于干扰协调 的操作载波， 则执行歩骤 304。  Step 302: The base station determines whether the operation carrier is an operation carrier used for interference coordination; if it is an operation carrier used for interference coordination, step 303 is performed; if it is not an operation carrier used for interference coordination, step 304 is performed. .
歩骤 303，基站对于该操作载波进行减少负载量的操作，或者进行去 激活的操作。  Step 303: The base station performs a load reduction operation or a deactivation operation on the operation carrier.
在本实施例中， 如果受干扰的操作载波是用于干扰协调的， 则该操 作载波优先被配置为 SCell, 用户设备可通过降低负载、 去激活等方式进 行降低干扰处理， 因为该载波基本上会被配置为 SCell, 因此， 对用户设 备的影响并不大。 因此， 基站可以不向邻基站发送干扰指示， 而是通过 自身解决。  In this embodiment, if the interfered operation carrier is used for interference coordination, the operation carrier is preferentially configured as an SCell, and the user equipment can reduce interference processing by reducing load, deactivating, etc., because the carrier is basically It will be configured as SCell, so the impact on the user equipment is not large. Therefore, the base station may not send an interference indication to the neighbor base station, but solve it by itself.
其中解决的方案可以包括： 减少负载量或去激活。 基站可以直接减 少负载量， 也可以直接进行去激活； 此外， 还可以先采用减少负载量， 如果采用该方案后下行干扰还是比较大， 基站可去激活该载波， 并通知 邻基站。 The solutions solved therein may include: reducing the load or deactivating. The base station can directly reduce the load or directly deactivate it. In addition, it can also reduce the load first. If the downlink interference is still relatively large after adopting the scheme, the base station can deactivate the carrier and notify the neighboring base station.
歩骤 304， 基站确定在操作载波上的受干扰程度。  Step 304: The base station determines the degree of interference on the operating carrier.
其中， 受干扰程度可以包括： 高干扰、 中干扰和低干扰。 但本发明 并不限于此， 例如还可以仅包括高干扰和低干扰等等， 可以根据实际情 况确定具体的方式。 以下仅以高干扰、 中干扰和低干扰为例进行详细说 明。  Among them, the degree of interference may include: high interference, medium interference and low interference. However, the present invention is not limited thereto, and for example, it may include only high interference and low interference, etc., and a specific manner may be determined according to actual conditions. The following is a detailed description of high interference, medium interference, and low interference.
在具体实施时，基站可以根据用户设备的参考信号接收质量（RSRQ, Reference Signal Receiving Quality) 1来确定受干扰程度， 或者可以根据 平均误比特率来确定受干扰程度。 但本发明不限于此， 还可以采用其他 的方式来确定受干扰程度。  In a specific implementation, the base station may determine the degree of interference according to the reference signal receiving quality (RSRQ) of the user equipment, or determine the degree of interference according to the average bit error rate. However, the present invention is not limited thereto, and other methods may be employed to determine the degree of interference.
以下以参考信号接收质量 为例进行说明。 在具体实施时， 如果 λ > , 则可以确定为高干扰， 如果 ^^ 〉^， 则可以确定为中干扰， 如 ^ λ2≥λ > λ, , 则可以确定为低干扰。 其中， 为经验值， 可以根据实际场 景预先确定， 至于具体如何获得 RSRQ可以参考现有技术。 The following takes the reference signal reception quality as an example for explanation. In the specific implementation, if λ > , it can be determined as high interference. If ^^ 〉^, it can be determined as medium interference, such as ^ λ 2 ≥ λ > λ, then it can be determined as low interference. The empirical value can be determined in advance according to the actual scenario. As for how to obtain the RSRQ, reference can be made to the prior art.
歩骤 305，基站向邻居基站发送下行干扰指示，其中该下行干扰指示 包括受干扰程度的信息。  Step 305: The base station sends a downlink interference indication to the neighbor base station, where the downlink interference indication includes information about the degree of interference.
在本实施例中， 下行干扰指示可以包括三种状态： 高干扰， 中干扰 和低干扰； 该下行干扰指示可在 Load Indication消息中传输。邻居基站接 收到该下行干扰指示之后， 可以对该操作载波进行处理。  In this embodiment, the downlink interference indication may include three states: high interference, medium interference, and low interference; the downlink interference indication may be transmitted in a Load Indication message. After the neighbor base station receives the downlink interference indication, the operation carrier may be processed.
例如， 如果基站发送高干扰的下行干扰指示给干扰邻居基站， 邻居 基站收到该下行干扰指示后， 可以通过降低发送功率或减少负载量减轻 干扰。  For example, if the base station sends a high-interference downlink interference indication to the interfering neighbor base station, after the neighbor base station receives the downlink interference indication, the interference can be mitigated by reducing the transmission power or reducing the load.
并且， 如果经过降低发送功率和减少负载量等方式后， 该邻居基站 依然收到高干扰的下行干扰指示， 邻居基站可以去激活该操作载波； 如 果经过降低发送功率和减少负载量等方式后， 该邻居基站收到中干扰的 下行干扰指示， 并且如果该邻居基站有备选的操作载波或者负载不重， 该邻居基站可以去激活该操作载波； 如果经过降低发送功率和减少负载 量等方式后， 该邻居基站收到低干扰的下行干扰指示， 则该邻居基站可 以不采取进一歩措施。 例如， 如果基站发送中干扰的下行干扰指示给干扰邻居基站， 邻居 基站收到该下行干扰指示后， 可以通过减低发送功率或减少负载量减轻 干扰。 And, after the method of reducing the transmission power and reducing the load, the neighboring base station still receives the high-interference downlink interference indication, and the neighboring base station can deactivate the operation carrier; if after reducing the transmission power and reducing the load, The neighboring base station receives the downlink interference indication of the interference, and if the neighbor base station has an alternate operation carrier or the load is not heavy, the neighbor base station may deactivate the operation carrier; if after reducing the transmission power and reducing the load amount, If the neighboring base station receives the low-interference downlink interference indication, the neighboring base station may not take further measures. For example, if the base station sends the downlink interference indication of the interference to the interfering neighbor base station, after receiving the downlink interference indication, the neighboring base station may mitigate the interference by reducing the transmission power or reducing the load.
并且， 如果经过减低发送功率和减少负载量等方式后， 该邻居基站 收到高干扰的下行干扰指示， 邻居基站可以去激活该操作载波； 如果经 过降低发送功率和减少负载量等方式后， 该邻居基站依然收到中干扰的 下行干扰指示， 并且如果该邻居基站有备选的操作载波或者负载不重， 该邻居基站可以去激活该操作载波； 如果经过降低发送功率和减少负载 量等方式后， 该邻居基站收到低干扰的下行干扰指示， 则该邻居基站可 以不采取进一歩措施。  And, after the method of reducing the transmission power and reducing the load, the neighboring base station receives the downlink interference indication with high interference, and the neighboring base station can deactivate the operation carrier; if after reducing the transmission power and reducing the load, etc., The neighbor base station still receives the downlink interference indication of the interference, and if the neighbor base station has an alternate operation carrier or the load is not heavy, the neighbor base station can deactivate the operation carrier; if the transmission power is reduced and the load is reduced, If the neighboring base station receives the low-interference downlink interference indication, the neighboring base station may not take further measures.
例如， 如果基站发送低干扰的下行干扰指示给干扰邻基站， 则邻居 基站可以无需采取措施减轻对邻基站的干扰。  For example, if the base station transmits a low-interference downlink interference indication to the interfering neighbor base station, the neighbor base station may not need to take measures to mitigate the interference to the neighbor base station.
值得注意的是， 图 3中确定受干扰程度的操作在歩骤 302之后进行， 在操作载波用于干扰协调时， 无需确定受干扰程度。 但不限于此， 图 3 中歩骤 304的确定受干扰程度的操作可以在歩骤 301之后、 歩骤 302之 前进行， 即操作载波受到下行干扰之后可以立即确定受干扰的程度。  It is worth noting that the operation of determining the degree of interference in Figure 3 is performed after step 302, and when the operational carrier is used for interference coordination, there is no need to determine the degree of interference. However, the operation of determining the degree of interference in step 304 of FIG. 3 may be performed after step 301 and before step 302, that is, the degree of interference may be determined immediately after the operating carrier is subjected to downlink interference.
图 4是本发明实施例的干扰协调方法的又一流程图， 如图 4所示， 所述方法包括：  FIG. 4 is still another flowchart of the interference coordination method according to the embodiment of the present invention. As shown in FIG. 4, the method includes:
歩骤 401， 基站的操作载波受到下行干扰。  Step 401: The operating carrier of the base station is subjected to downlink interference.
歩骤 402， 基站确定在操作载波上的受干扰程度。  Step 402: The base station determines the degree of interference on the operating carrier.
歩骤 403，基站判断该操作载波是否为用于干扰协调的操作载波；如 果是用于干扰协调的操作载波， 则执行歩骤 404; 如果不是用于干扰协调 的操作载波， 则执行歩骤 405。  Step 403: The base station determines whether the operation carrier is an operation carrier used for interference coordination; if it is an operation carrier used for interference coordination, performing step 404; if it is not an operation carrier for interference coordination, performing step 405 .
歩骤 404，基站对于该操作载波进行减少负载量的操作，或者进行去 激活的操作。  Step 404: The base station performs a load reduction operation or a deactivation operation on the operation carrier.
歩骤 405，基站向邻居基站发送下行干扰指示，其中该下行干扰指示 包括受干扰程度的信息。  Step 405: The base station sends a downlink interference indication to the neighbor base station, where the downlink interference indication includes information about the degree of interference.
由上述实施例可知， 通过基站在受干扰的操作载波不是用于干扰协 调的操作载波时， 向邻居基站发送下行干扰指示， 使得邻居基站根据下 行干扰指示对该操作载波进行处理。 不仅可以通知邻居基站受干扰的情 况； 而且可以有效防止大量用户设备的切换， 避免出现网络不稳定的情 况。 实施例 2 It can be seen from the foregoing embodiment that the base station sends a downlink interference indication to the neighbor base station when the interfered operation carrier is not the operation carrier for interference coordination, so that the neighbor base station processes the operation carrier according to the downlink interference indication. Not only can notify neighbor base stations of interference Moreover, it can effectively prevent the switching of a large number of user equipments, and avoid the situation of network instability. Example 2
本发明实施例提供一种操作载波的干扰协调方法， 应用于邻居基站 侧， 与实施例 1相同的内容不再赘述。 图 5是本发明实施例的干扰协调 方法的流程图， 如图 5所示， 所述方法包括：  An embodiment of the present invention provides an interference coordination method for operating a carrier, which is applied to a neighboring base station side, and the same content as that of Embodiment 1 is not described herein. FIG. 5 is a flowchart of an interference coordination method according to an embodiment of the present invention. As shown in FIG. 5, the method includes:
歩骤 501，邻居基站接收基站发送的下行干扰指示，其中该下行干扰 指示包括在操作载波上受干扰程度的信息；  Step 501: The neighboring base station receives a downlink interference indication sent by the base station, where the downlink interference indication includes information about a degree of interference on the operating carrier.
歩骤 502， 邻居基站根据下行干扰指示对该操作载波进行操作。 在具体实施时， 受干扰程度可以包括： 高干扰、 中干扰和低干扰。 但本发明不限于此， 还可以采用其他具体的受干扰程度。  Step 502: The neighboring base station operates the operation carrier according to the downlink interference indication. In the specific implementation, the degree of interference may include: high interference, medium interference, and low interference. However, the present invention is not limited thereto, and other specific degrees of interference may be employed.
在具体实施时， 若下行干扰指示包括高干扰或者中干扰的信息， 邻 居基站根据下行干扰指示对操作载波进行操作具体可以包括： 对于该操 作载波， 降低发送功率或者减少负载量。 若下行干扰指示包括低干扰的 信息， 则邻居基站可以不对该操作载波进行处理。  In a specific implementation, if the downlink interference indication includes the information of the high interference or the medium interference, the operation of the operation carrier by the neighboring base station according to the downlink interference indication may include: reducing the transmission power or reducing the load amount for the operation carrier. If the downlink interference indication includes low interference information, the neighbor base station may not process the operation carrier.
在本实施例中， 如果在降低发送功率或者减少负载量之后， 邻居基 站还可以接收到包括高干扰信息的下行干扰指示， 则邻居基站可以对该 操作载波进行去激活的操作。  In this embodiment, if the neighbor base station can also receive the downlink interference indication including the high interference information after reducing the transmission power or reducing the load amount, the neighbor base station can perform the operation of deactivating the operation carrier.
如果在降低发送功率或者减少负载量之后， 邻居基站还可以接收到 包括中干扰信息的下行干扰指示， 并且邻居基站具有备选的操作载波或 者负载量不重， 则邻居基站可以对操作载波进行去激活的操作。  If the neighboring base station can also receive the downlink interference indication including the medium interference information after reducing the transmission power or reducing the load amount, and the neighbor base station has an alternative operation carrier or the load quantity is not heavy, the neighbor base station can perform the operation carrier. Activated operation.
由上述实施例可知， 通过基站在受干扰的操作载波不是用于干扰协 调的操作载波时， 向邻居基站发送下行干扰指示， 使得邻居基站根据下 行干扰指示对该操作载波进行处理。 可以有效防止大量用户设备的切换， 避免出现网络不稳定的情况。 实施例 3  It can be seen from the foregoing embodiment that the base station sends a downlink interference indication to the neighbor base station when the interfered operation carrier is not the operation carrier for interference coordination, so that the neighbor base station processes the operation carrier according to the downlink interference indication. It can effectively prevent the switching of a large number of user equipments and avoid network instability. Example 3
本发明实施例提供一种基站， 对应于实施例 1 中的操作载波的干扰 I、调方法， 与实施例 1相同的内容不再赘述。 图 6是本发明实施例的基站的一构成图。如图 6所示，所述基站 600 包括： 载波判断单元 601和指示发送单元 602; 基站 600的其他部分没有 示出， 可以参考现有技术。 The embodiment of the present invention provides a base station, which corresponds to the interference I and the adjustment method of the operation carrier in the embodiment 1, and the same content as that of the embodiment 1 is not described herein. Figure 6 is a block diagram of a base station according to an embodiment of the present invention. As shown in FIG. 6, the base station 600 includes: a carrier determining unit 601 and an indication transmitting unit 602; other parts of the base station 600 are not shown, and reference may be made to the prior art.
其中， 载波判断单元 601用于在操作载波受到下行干扰时， 判断该 操作载波是否为用于干扰协调的操作载波； 指示发送单元 602在操作载 波不是用于干扰协调的操作载波时， 向邻居基站发送包括受干扰程度信 息的下行干扰指示。  The carrier determining unit 601 is configured to determine, when the operating carrier is subjected to downlink interference, whether the operating carrier is an operational carrier used for interference coordination, and the indication sending unit 602, when the operating carrier is not an operational carrier used for interference coordination, to the neighboring base station. A downlink interference indication including information on the degree of interference is transmitted.
在本实施例中， 下行干扰指示可以在 Load Indication消息中传输。 但本发明不限于此， 在具体实施时还可以采用其他的消息。  In this embodiment, the downlink interference indication may be transmitted in a Load Indication message. However, the present invention is not limited thereto, and other messages may be employed in the specific implementation.
图 7是本发明实施例的基站的又一构成图。 如图 7所示， 所述基站 Fig. 7 is still another block diagram of a base station according to an embodiment of the present invention. As shown in FIG. 7, the base station
700包括： 载波判断单元 601和指示发送单元 602， 如上所述。 700 includes: a carrier determination unit 601 and an indication transmission unit 602, as described above.
如图 7所示，基站 700还可以包括载波操作单元 703，该载波操作单 元 703 用于在该操作载波是用于干扰协调的操作载波时， 对于该操作载 波进行减少负载量的操作， 或者进行去激活的操作。  As shown in FIG. 7, the base station 700 may further include a carrier operation unit 703, configured to perform a load reduction operation on the operation carrier when the operation carrier is an operation carrier for interference coordination, or perform Deactivated operation.
如图 7所示， 基站 700还可以包括： 干扰确定单元 704， 干扰确定单 元 604用于确定在该操作载波上的受干扰程度； 该受干扰程度可以包括: 高干扰、 中干扰和低干扰。  As shown in FIG. 7, the base station 700 may further include: an interference determining unit 704, configured to determine a degree of interference on the operating carrier; the degree of interference may include: high interference, medium interference, and low interference.
在具体实施时， 干扰确定单元 704可以根据用户设备的参考信号接 收质量来确定受干扰程度， 或者可以根据平均误比特率来确定受干扰程 度。  In a specific implementation, the interference determining unit 704 may determine the degree of interference according to the reference signal receiving quality of the user equipment, or may determine the degree of interference according to the average bit error rate.
图 8是本发明实施例的基站的又一构成图。 如图 8所示， 所述基站 800包括： 载波判断单元 601、 指示发送单元 602、 载波操作单元 703和 干扰确定单元 704， 如上所述。  Fig. 8 is still another block diagram of a base station according to an embodiment of the present invention. As shown in FIG. 8, the base station 800 includes: a carrier determining unit 601, an indication transmitting unit 602, a carrier operating unit 703, and an interference determining unit 704, as described above.
在图 8所示的基站 800中， 干扰确定单元 704可以在基站的操作载 波受到下行干扰时， 首先确定在操作载波上的受干扰程度。 然后再由载 波判断单元 601判断该操作载波是否用于干扰协调。  In the base station 800 shown in Fig. 8, the interference determining unit 704 can first determine the degree of interference on the operating carrier when the operational carrier of the base station is subjected to downlink interference. Then, the carrier judgment unit 601 determines whether the operation carrier is used for interference coordination.
由上述实施例可知， 通过基站在受干扰的操作载波不是用于干扰协 调的操作载波时， 向邻居基站发送下行干扰指示， 使得邻居基站根据下 行干扰指示对该操作载波进行处理。 不仅可以通知邻居基站受干扰的情 况； 而且可以有效防止大量用户设备的切换， 避免出现网络不稳定的情 实施例 4 It can be seen from the foregoing embodiment that the base station sends a downlink interference indication to the neighbor base station when the interfered operation carrier is not the operation carrier for interference coordination, so that the neighbor base station processes the operation carrier according to the downlink interference indication. Not only can the neighbor base station be disturbed, but also can effectively prevent the switching of a large number of user equipments, avoiding network instability. Example 4
本发明实施例提供一种基站， 对应于实施例 2中的操作载波的干扰 协调方法， 与实施例 2相同的内容不再赘述。  The embodiment of the present invention provides a method for the interference coordination of the base station corresponding to the operation carrier in the second embodiment, and the same content as the second embodiment is not described herein.
图 9是本发明实施例的基站的构成示意图。 如图 9所示， 基站 900 包括： 指示接收单元 901和载波操作单元 902; 基站 900的其他部分没有 示出， 可以参考现有技术。  FIG. 9 is a schematic diagram showing the structure of a base station according to an embodiment of the present invention. As shown in FIG. 9, the base station 900 includes: an indication receiving unit 901 and a carrier operating unit 902; other parts of the base station 900 are not shown, and reference may be made to the prior art.
其中， 指示接收单元 901接收其他基站发送的下行干扰指示， 其中 下行干扰指示包括在操作载波上受干扰程度的信息； 载波操作单元 902 根据该下行干扰指示对该操作载波进行操作。  The indication receiving unit 901 receives the downlink interference indication sent by the other base station, where the downlink interference indication includes information on the degree of interference on the operating carrier; the carrier operation unit 902 operates the operation carrier according to the downlink interference indication.
在具体实施时， 受干扰程度可以包括： 高干扰、 中干扰和低干扰。 但本发明不限于此， 可以根据实际情况确定具体的实施方式。  In the specific implementation, the degree of interference may include: high interference, medium interference, and low interference. However, the present invention is not limited thereto, and a specific embodiment may be determined according to actual conditions.
在具体实施时， 如果下行干扰指示包括高干扰或者中干扰的信息， 载波操作单元 902具体可以用于： 对于该操作载波， 降低发送功率或者 减少负载量。 如果下行干扰指示包括低干扰的信息， 基站 900可以不对 该操作载波进行处理。  In a specific implementation, if the downlink interference indication includes information of high interference or medium interference, the carrier operation unit 902 may be specifically configured to: reduce the transmission power or reduce the load amount for the operation carrier. If the downlink interference indication includes low interference information, the base station 900 may not process the operational carrier.
在本实施例中， 载波操作单元 902还可以用于： 在降低发送功率或 者减少负载量之后， 指示接收单元 901 还接收到包括高干扰信息的下行 干扰指示时， 对该操作载波进行去激活的操作。  In this embodiment, the carrier operation unit 902 is further configured to: after the receiving unit 901 further receives the downlink interference indication including the high interference information, after the transmission power is reduced or the amount of the load is reduced, the operating carrier is deactivated. operating.
在本实施例中， 载波操作单元 902还可以用于： 在降低发送功率或 者减少负载量之后， 指示接收单元 901 还接收到包括中干扰信息的下行 干扰指示， 并且基站 900具有备选的操作载波或者负载量不重时， 对该 操作载波进行去激活的操作。  In this embodiment, the carrier operation unit 902 may be further configured to: after reducing the transmit power or reduce the load, indicating that the receiving unit 901 further receives the downlink interference indication including the medium interference information, and the base station 900 has an alternate operation carrier. Or when the load is not heavy, the operation carrier is deactivated.
由上述实施例可知， 通过基站在受干扰的操作载波不是用于干扰协 调的操作载波时， 向邻居基站发送下行干扰指示， 使得邻居基站根据下 行干扰指示对该操作载波进行处理。 可以有效防止大量用户设备的切换， 避免出现网络不稳定的情况。  It can be seen from the foregoing embodiment that the base station sends a downlink interference indication to the neighbor base station when the interfered operation carrier is not the operation carrier for interference coordination, so that the neighbor base station processes the operation carrier according to the downlink interference indication. It can effectively prevent the switching of a large number of user equipments and avoid network instability.
本发明实施例还提供一种计算机可读程序， 其中当在基站中执行该 程序时， 该程序使得计算机在该基站中执行如前所述的操作载波的干扰 协调方法。 The embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a base station, the program causes the computer to perform interference of the operation carrier as described above in the base station Coordination method.
本发明实施例还提供一种存储有计算机可读程序的存储介质， 其中 该计算机可读程序使得计算机在基站中执行如前所述的操作载波的干扰 协调方法。  Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an interference coordination method of an operation carrier as described above in a base station.
本发明以上的装置和方法可以由硬件实现， 也可以由硬件结合软件 实现。 本发明涉及这样的计算机可读程序， 当该程序被逻辑部件所执行 时， 能够使该逻辑部件实现上文所述的装置或构成部件， 或使该逻辑部 件实现上文所述的各种方法或歩骤。 本发明还涉及用于存储以上程序的 存储介质， 如硬盘、 磁盘、 光盘、 DVD、 flash存储器等。  The above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software. The present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or a step. The present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
以上结合具体的实施方式对本发明进行了描述， 但本领域技术人员 应该清楚， 这些描述都是示例性的， 并不是对本发明保护范围的限制。 本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和 修改， 这些变型和修改也在本发明的范围内。  The present invention has been described in connection with the specific embodiments thereof, and it should be understood by those skilled in the art that these descriptions are not intended to limit the scope of the invention. A person skilled in the art can make various modifications and changes to the invention in accordance with the spirit and the principles of the invention, which are also within the scope of the invention.

Claims

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1、 一种操作载波的干扰协调方法， 所述方法包括： 1. An interference coordination method for operating carriers, the method includes:
基站在操作载波受到下行干扰时， 判断所述操作载波是否为用于干 扰协调的操作载波； When the base station's operating carrier is subject to downlink interference, it determines whether the operating carrier is an operating carrier used for interference coordination;
若所述操作载波不是用于干扰协调的操作载波， 所述基站向邻居基 站发送包括受干扰程度信息的下行干扰指示。 If the operating carrier is not an operating carrier used for interference coordination, the base station sends a downlink interference indication including interference degree information to the neighbor base station.
2、 根据权利要求 1所述的方法， 其中， 所述方法还包括： 2. The method according to claim 1, wherein the method further includes:
若所述操作载波是用于干扰协调的操作载波， 所述基站对于所述操 作载波进行减少负载量的操作， 或者进行去激活的操作。 If the operating carrier is an operating carrier used for interference coordination, the base station performs a load reduction operation or a deactivation operation on the operating carrier.
3、 根据权利要求 1所述的方法， 其中， 所述方法还包括： 3. The method according to claim 1, wherein the method further includes:
所述基站确定在所述操作载波上的所述受干扰程度； 所述受干扰程 度包括： 高干扰、 中干扰和低干扰。 The base station determines the interference level on the operating carrier; the interference level includes: high interference, medium interference and low interference.
4、 根据权利要求 3所述的方法， 其中， 所述基站根据用户设备的参 考信号接收质量来确定所述受干扰程度， 或者根据平均误比特率来确定 所述受干扰程度。 4. The method according to claim 3, wherein the base station determines the degree of interference based on the reference signal reception quality of the user equipment, or determines the degree of interference based on the average bit error rate.
5、 根据权利要求 1 所述的方法， 其中， 所述下行干扰指示在 Load Indication消息中传输。 5. The method according to claim 1, wherein the downlink interference indication is transmitted in a Load Indication message.
6、 一种操作载波的干扰协调方法， 所述方法包括： 6. An interference coordination method for operating carriers, the method includes:
邻居基站接收基站发送的下行干扰指示， 其中所述下行干扰指示包 括在操作载波上受干扰程度的信息； The neighbor base station receives the downlink interference indication sent by the base station, where the downlink interference indication includes information on the degree of interference on the operating carrier;
所述邻居基站根据所述下行干扰指示对所述操作载波进行操作。 The neighbor base station operates the operating carrier according to the downlink interference indication.
7、 根据权利要求 6所述的方法， 其中， 所述受干扰程度包括： 高干 扰、 中干扰和低干扰。 7. The method according to claim 6, wherein the interference level includes: high interference, medium interference and low interference.
8、 根据权利要求 7所述的方法， 其中， 所述下行干扰指示包括高干 扰或者中干扰的信息， 所述邻居基站根据所述下行干扰指示对所述操作 载波进行操作具体包括： 8. The method according to claim 7, wherein the downlink interference indication includes information about high interference or medium interference, and the neighbor base station operating the operating carrier according to the downlink interference indication specifically includes:
对于所述操作载波， 降低发送功率或者减少负载量。 For the operating carrier, the transmission power is reduced or the load is reduced.
9、 根据权利要求 8所述的方法， 其中， 所述方法还包括： 9. The method according to claim 8, wherein the method further includes:
如果在降低发送功率或者减少负载量之后， 所述邻居基站还接收到 包括高干扰信息的下行干扰指示， 则所述邻居基站对所述操作载波进行 去激活的操作。 If after reducing the transmit power or reducing the load, the neighbor base station also receives If the downlink interference indication includes high interference information, the neighbor base station deactivates the operating carrier.
10、 根据权利要求 8所述的方法， 其中， 所述方法还包括： 如果在降低发送功率或者减少负载量之后， 所述邻居基站还接收到 包括中干扰信息的下行干扰指示， 并且所述邻居基站具有备选操作载波 或者负载量不重， 则所述邻居基站对所述操作载波进行去激活的操作。 10. The method according to claim 8, wherein the method further includes: if after reducing the transmission power or reducing the load, the neighbor base station also receives a downlink interference indication including interference information, and the neighbor If the base station has an alternative operating carrier or the load is not heavy, the neighbor base station deactivates the operating carrier.
11、 一种基站， 所述基站包括： 11. A base station, the base station includes:
载波判断单元， 在操作载波受到下行干扰时， 判断所述操作载波是 否为用于干扰协调的操作载波； A carrier judgment unit, when the operating carrier is subject to downlink interference, determines whether the operating carrier is an operating carrier used for interference coordination;
指示发送单元， 在所述操作载波不是用于干扰协调的操作载波时， 向邻居基站发送包括受干扰程度信息的下行干扰指示。 The indication sending unit is configured to send a downlink interference indication including interference degree information to the neighbor base station when the operating carrier is not an operating carrier used for interference coordination.
12、 根据权利要求 11所述的基站， 其中， 所述基站还包括： 载波操作单元， 在所述操作载波是用于干扰协调的操作载波时， 对 于所述操作载波进行减少负载量的操作， 或者进行去激活的操作。 12. The base station according to claim 11, wherein the base station further includes: a carrier operating unit, which performs a load reduction operation on the operating carrier when the operating carrier is an operating carrier used for interference coordination, Or perform deactivation operation.
13、 根据权利要求 11所述的基站， 其中， 所述基站还包括： 干扰确定单元， 确定在所述操作载波上的所述受干扰程度； 所述受 干扰程度包括： 高干扰、 中干扰和低干扰。 13. The base station according to claim 11, wherein the base station further includes: an interference determination unit, determining the interference level on the operating carrier; the interference level includes: high interference, medium interference and Low interference.
14、 根据权利要求 13所述的基站， 其中， 所述干扰确定单元根据用 户设备的参考信号接收质量来确定所述受干扰程度， 或者根据平均误比 特率来确定所述受干扰程度。 14. The base station according to claim 13, wherein the interference determination unit determines the interference degree according to the reference signal reception quality of the user equipment, or determines the interference degree according to the average bit error rate.
15、根据权利要求 11所述的基站， 其中， 所述下行干扰指示在 Load Indication消息中传输。 15. The base station according to claim 11, wherein the downlink interference indication is transmitted in a Load Indication message.
16、 一种基站， 所述基站包括： 16. A base station, the base station includes:
指示接收单元， 接收邻居基站发送的下行干扰指示， 其中所述下行 干扰指示包括在操作载波上受干扰程度的信息； The indication receiving unit receives the downlink interference indication sent by the neighbor base station, where the downlink interference indication includes information on the degree of interference on the operating carrier;
载波操作单元， 根据所述下行干扰指示对所述操作载波进行操作。 A carrier operating unit is configured to operate the operating carrier according to the downlink interference indication.
17、 根据权利要求 16所述的基站， 其中， 所述受干扰程度包括： 高 干扰、 中干扰和低干扰。 17. The base station according to claim 16, wherein the interference degree includes: high interference, medium interference and low interference.
18、 根据权利要求 17所述的基站， 其中， 所述下行干扰指示包括高 干扰或者中干扰的信息， 所述载波操作单元具体用于： 对于所述操作载 波， 降低发送功率或者减少负载量。 18. The base station according to claim 17, wherein the downlink interference indication includes information of high interference or medium interference, and the carrier operation unit is specifically configured to: operate the carrier wave, reduce the transmitting power or reduce the load.
19、根据权利要求 18所述的基站，其中，所述载波操作单元还用于: 在降低发送功率或者减少负载量之后， 所述指示接收单元还接收到包括 高干扰信息的下行干扰指示时， 对所述操作载波进行去激活的操作。 19. The base station according to claim 18, wherein the carrier operation unit is further configured to: after reducing the transmission power or reducing the load, when the indication receiving unit also receives a downlink interference indication including high interference information, Perform a deactivation operation on the operating carrier.
20、根据权利要求 18所述的基站，其中，所述载波操作单元还用于: 在降低发送功率或者减少负载量之后， 所述指示接收单元还接收到包括 中干扰信息的下行干扰指示， 并且所述基站具有备选操作载波或者负载 量不重时， 对所述操作载波进行去激活的操作。 20. The base station according to claim 18, wherein the carrier operation unit is further configured to: after reducing the transmission power or reducing the load, the indication receiving unit further receives a downlink interference indication including medium interference information, and When the base station has an alternative operating carrier or the load is not heavy, the base station deactivates the operating carrier.
21、 一种计算机可读程序， 其中当在基站中执行所述程序时， 所述 程序使得计算机在所述基站中执行如权利要求 1至 10任意一项所述的操 作载波的干扰协调方法。 21. A computer-readable program, wherein when the program is executed in a base station, the program causes the computer to execute the interference coordination method for operating carriers in the base station as described in any one of claims 1 to 10.
22、 一种存储有计算机可读程序的存储介质， 其中所述计算机可读 程序使得计算机在基站中执行如权利要求 1至 10任意一项所述的操作载 波的干扰协调方法。 22. A storage medium storing a computer-readable program, wherein the computer-readable program causes the computer to execute the interference coordination method for operating a carrier as described in any one of claims 1 to 10 in the base station.
PCT/CN2012/075292 2012-05-10 2012-05-10 Operating carrier interference coordination method and base station WO2013166686A1 (en)

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