WO2013017109A1 - 选择载波的方法、装置及基站 - Google Patents

选择载波的方法、装置及基站 Download PDF

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Publication number
WO2013017109A1
WO2013017109A1 PCT/CN2012/079721 CN2012079721W WO2013017109A1 WO 2013017109 A1 WO2013017109 A1 WO 2013017109A1 CN 2012079721 W CN2012079721 W CN 2012079721W WO 2013017109 A1 WO2013017109 A1 WO 2013017109A1
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Prior art keywords
base station
carrier
information
cell
interference
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PCT/CN2012/079721
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English (en)
French (fr)
Inventor
王燕
蔺波
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112014002477A priority Critical patent/BR112014002477A2/pt
Priority to IN710CHN2014 priority patent/IN2014CN00710A/en
Publication of WO2013017109A1 publication Critical patent/WO2013017109A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Definitions

  • the present invention relates to a wireless communication system, and in particular, to a method, an apparatus, and a base station for selecting a carrier. Background technique
  • small base stations more low-power access points or small base stations (hereinafter collectively referred to as small base stations) can be introduced in the macro network to increase system capacity.
  • the transmit power of the small base station is smaller than the transmit power of the macro base station, so the downlink coverage is much smaller than the downlink coverage of the macro base station.
  • LTE Long Term Evolution
  • Femto eNodeB access points such as remote radio head (RRH) can be called small base stations.
  • the hybrid networking mode can enhance hotspot coverage, indoor blind spot (or weak point) coverage, macro base station cell edge coverage, improve cell average throughput, cell edge throughput, cell uplink/downlink spectrum utilization, and reduce network cost. And the operator's CAPEX (capital expenditure) and so on. This mixed network is called a heterogeneous network.
  • a base station can provide multiple carriers at the same time.
  • the base station can provide services for multiple terminals supporting a carrier aggregation, thereby improving user data rate and enhancing. User experience.
  • the inter-cell inter-cell interference coordination is supported on the X2 interface, for example, the uplink interference caused by the base station 1 to the same-frequency neighboring cell, the uplink interference that the base station 1 may cause to the neighboring cell, and The downlink narrowband transmit power of the base station 1 is informed to the neighbor base station, thereby realizing the role of interference coordination between the base stations.
  • the above method only supports the interaction of information between cells in the same frequency, and cannot select a suitable cell under the different frequency to avoid inter-cell interference.
  • a base station eNB3 has only one cell 6 on one carrier 1, it cannot acquire interference information of cells 1, 2, 3, 4, 5 on the neighbor base station eNB1, eNB2 carrier 2, 3, so that when the base station eNB3 needs
  • the carrier is added, the interference of the neighboring cells on the carriers 2 and 3 cannot be well understood, and inter-cell interference cannot be avoided.
  • each base station When the two base stations establish an X2 interface, each base station sends its cell information to the neighboring base station.
  • the cell information includes the uplink and downlink carrier frequency and bandwidth of the cell, and the base station is not determined in the prior art.
  • the X2 interface could not be established before the cell information. In the prior art, there is no method for interference coordination between adjacent cells using carrier information. Summary of the invention
  • the embodiments of the present invention provide a method, a device, and a base station for selecting a carrier, which can greatly reduce small-area interference and improve system capability.
  • a method of selecting a carrier comprising:
  • the first base station obtains carrier information of a cell under the second base station
  • the first base station selects a carrier according to the obtained carrier information.
  • an apparatus for selecting a carrier comprising:
  • a carrier information obtaining unit configured to obtain carrier information of a cell under the second base station
  • a carrier selection unit configured to select a carrier according to the carrier information obtained by the carrier information obtaining unit.
  • a base station where the base station includes:
  • a carrier information obtaining unit configured to obtain carrier information of a cell under the second base station
  • a carrier selection unit configured to select a carrier according to the carrier information obtained by the carrier information obtaining unit.
  • the method, device and base station for selecting a carrier provided by the above embodiments are When each type of base station can support multiple carriers, it can understand the interference situation of neighboring cells on multiple carriers, minimize inter-cell interference, and improve system capability. Moreover, interference information between the same frequency cells can be avoided, and interference coordination of multiple cells under multiple carriers is realized.
  • FIG. 1 is a flowchart of a method for selecting a carrier according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a logical structure of a device for selecting a carrier according to an embodiment of the present invention.
  • An eNB can be used as an example.
  • an inter-base station interface is an X2 interface, so as to implement inter-base station signaling and data interaction.
  • this application is not limited to the LTE system, and is equally applicable to other systems.
  • the two base stations exchange application information such as uplink and downlink carrier frequencies and bandwidths with each other, and there is a configuration update process between the base stations, which can further update each application information.
  • application information such as uplink and downlink carrier frequencies and bandwidths with each other, and there is a configuration update process between the base stations, which can further update each application information.
  • a possible implementation manner is that, in the Served Cell Information, the first base station informs the neighboring second base station of its own application information.
  • the above application information can be as shown in Table 1: Table 1
  • the first base station sends the information of each cell to the second base station.
  • the range of the serving cell (Range) is 1 to the maximum number of cells (maxCellineNB). ).
  • the embodiment of the present invention provides a method for selecting a carrier, which is applied to a base station supporting one or more carriers, where multiple A base station of a carrier refers to a base station that can simultaneously support multiple carriers, and a base station that supports one carrier refers to a base station capable of selecting one carrier among a plurality of different carriers, that is, the former is equivalent to one base station and can simultaneously use multiple carriers, and the latter Equivalent to one base station can only use one carrier at a time, but each selected carrier can be the same or different.
  • the method shown in Figure 1 can specifically include:
  • Step 101 The first base station obtains carrier information of a cell under the second base station.
  • the manner in which the first base station obtains the carrier information of the cell under the second base station includes:
  • the first base station and the second base station perform an X2 establishment process; thus, the first base station obtains the second base station in the X2 establishment process.
  • the carrier information of the cell that is, the first base station obtains the carrier information of the cell under the second base station by using the inter-base station interface between the first base station and the second base station;
  • the first base station acquires carrier information of the cell under the second base station from an Operation Administration and Maintenance (OAM);
  • OAM Operation Administration and Maintenance
  • the first base station receives the uplink carrier signal of the second base station, and determines carrier information of the cell under the second base station according to the uplink carrier signal;
  • the first base station performs an inter-cell interference coordination (ICIC) operation with the second base station; thus, the first base station obtains the inter-cell interference coordination process between the first base station and the second base station.
  • ICIC inter-cell interference coordination
  • the above ICIC operation generally refers to the cross-load transmission information (RNTP, according to the obtained neighboring cell uplink interference indication (01, overload indication), high interference indication ( ⁇ , High Interference Indication) information.
  • RTP cross-load transmission information
  • AL initial cell uplink interference indication
  • High Interference Indication
  • Relative Narrowband Tx Power Relative Narrowband Tx Power
  • ABS almost blank subframe information, selecting uplink and/or downlink carriers with less interference
  • the second base station when ICIC is performed here, it is not restricted by the same frequency cell. That is, the second base station sends related information of all its serving cells to the adjacent first base station, thereby avoiding limited to co-channel interference coordination. Or the second base station sends the information about the neighboring cells of the first base station to the first base station, where the identification method of all the neighboring cells can be obtained by the OAM configuration, or obtained according to the UE measurement report.
  • the inter-base station interface establishment process such as the X2 interface setup process, or the base station configuration update process, obtains the carrier information of the cell under the second base station or is compared with the cell under the first base station. Carrier information of a cell under the second base station.
  • the carrier information includes at least one of carrier frequency and bandwidth information, carrier interference information, and carrier transmit power information. That is to say, the above carrier information may include one or a combination of the above three.
  • the transmit power information is obtained in the process of establishing an inter-base station interface between the first base station and the second base station.
  • the interference information of the carrier includes carrier interference information of a cell under the second base station or interference information of a carrier of the cell under the second base station adjacent to the cell under the first base station, and the interference information of the carrier is in the first base station and the first After the second base station establishes an inter-base station interface, the first base station obtains the inter-cell interference coordination operation.
  • Step 102 The first base station selects a carrier according to the obtained carrier information.
  • the operation of selecting a carrier includes determining a carrier and/or updating a carrier, wherein updating the carrier includes, adjusting, adding, and deleting at least one of the operations, that is, adjusting, adding, and/or deleting the carrier.
  • the manner of selecting the carrier is also different, which are respectively described below.
  • the carrier information specifically includes carrier frequency and bandwidth information
  • the carrier frequency and bandwidth information specifically includes uplink carrier frequency and bandwidth information and/or downlink carrier frequency and bandwidth information
  • the obtained carrier information, the step of selecting a carrier includes: the first base station determining, according to the carrier frequency and bandwidth information of the uplink carrier, that the current usage count is lower than a usage threshold or an unused uplink carrier as the currently used uplink carrier; and/or
  • the first base station determines, according to the carrier frequency and bandwidth information of the downlink carrier, that the current usage count is lower than the usage threshold or the unused downlink carrier is used as the currently used downlink carrier.
  • the carrier frequency and bandwidth information only include the uplink carrier frequency and bandwidth information
  • only the currently used uplink carrier may be determined; if the carrier frequency and bandwidth information only include If the carrier frequency and bandwidth information are used, only the downlink carrier currently used may be determined; if the carrier frequency and bandwidth information include uplink and downlink carrier frequency and bandwidth information, only the currently used uplink carrier may be determined, or only the downlink carrier may be determined, or Determine the upstream and downstream carriers.
  • the uplink carrier 1 is used by three cells, and the uplink carrier 2 is used by one cell, in this area, the uplink carrier 2 is determined as the currently used uplink carrier. If the downlink carrier 1 is used by 3 cells and the downlink carrier 2 is not used, in this area, the downlink carrier 2 is determined as the currently used downlink carrier.
  • the method of FIG. 1 further includes: the signal strength information of the cell under the second base station received by the first base station;
  • the step of selecting, by the first base station, the carrier according to the obtained carrier information is: acquiring, according to the transmit power information of the carrier, and the received signal strength information of the cell under the second base station,
  • the path loss information of the cell of the second base station determines, according to the acquired path loss information, a downlink carrier whose path loss is the highest or higher than or equal to the path loss threshold as the currently used downlink carrier.
  • the first base station calculates, according to the transmit power information and the signal emphasis information of the cells 1, 2, and 3 of the second base station, the path loss information of the cell 1 in the second base station is 1, and the path loss information of the cell 2 is 0. 8
  • the path loss information of the cell 3 is 0.3. Then, according to a preset policy, if it is determined that the path loss is the largest as the currently used downlink carrier, the cell 1 is selected; if it is determined that the path loss threshold is exceeded, such as the path loss threshold is 0.5.
  • the downlink carrier currently used selects cell 1 or cell 2.
  • the carrier information includes the interference information of the carrier, and the interference information of the carrier specifically includes the uplink carrier interference information and/or the downlink carrier interference information, the first base station selects according to the obtained carrier information.
  • the steps of the carrier include:
  • the first base station determines, according to the interference information of the uplink carrier, an uplink carrier whose interference is lower than or equal to the interference threshold or no interference as the currently used downlink carrier; and/or
  • the first base station determines, according to the interference information of the downlink carrier, a downlink carrier whose interference is lower than or equal to the interference threshold or no interference as the currently used downlink carrier.
  • Mode 4 The difference between the method and the third method is that the interference information of the carrier further includes the downlink interference indication information, and the downlink carrier with the interference lower than or equal to the interference threshold or no interference may be determined according to the interference information of the downlink carrier and the downlink interference indication information. As the downlink carrier currently used.
  • the interference information of the carrier specifically includes uplink carrier interference information, downlink interference indication information, and/or downlink carrier interference information, and Interference indication information;
  • the step of selecting, by the first base station, the carrier according to the obtained carrier information includes: determining, by the first base station, the uplink carrier whose interference is lower than or equal to the interference threshold or without interference, according to the interference information of the uplink carrier, as the currently used downlink carrier. ; and / or
  • the first base station determines, according to the interference information of the downlink carrier and the downlink interference indication information, that the downlink carrier with interference lower than or equal to the interference threshold or no interference is used as the currently used downlink carrier.
  • the interference information of the carrier only includes the interference information of the uplink carrier, only the uplink carrier currently used may be determined; if the interference information of the carrier includes only the interference information of the downlink carrier, Determining the currently used downlink carrier; if the interference information of the carrier includes the interference information of the uplink and downlink carriers, it may determine only the currently used uplink carrier, or only the downlink carrier, or determine the uplink and downlink carriers.
  • the first base station may select the downlink carrier according to the selected uplink carrier and the uplink and downlink carrier pairing table;
  • the first base station may select the uplink carrier according to the selected downlink carrier and the uplink and downlink carrier pairing table;
  • the first base station may select the downlink carrier according to the selected uplink carrier and the uplink and downlink carrier pairing information of the cell under the second base station;
  • the first base station may select the uplink carrier according to the selected downlink carrier and the uplink and downlink carrier pairing information of the cell under the second base station.
  • the first base station is implemented to implement carrier selection.
  • a pair of uplink and downlink carriers may be selected at one time, or multiple uplink carriers and multiple downlink carriers may be selected at one time, and the number of selected uplink carriers and the number of downlink carriers may be the same. different.
  • the first base station and the second base station perform an X2 establishment process, because the first base station is allowed to open the cell serving the terminal or the cell information of one cell is determined.
  • Table 3 Urgency urgency
  • the downlink interference indication information is an indication of the interference strength of all neighboring base station cells on the first frequency received by the first base station (or the UE under the first base station), and specifically may be adopted. High, medium, low, or “high, low,”, or “decibel value” are indicated.
  • the selecting carrier in the above step 102 includes determining the carrier and updating the carrier, and the operation of updating the carrier further includes at least one of an adjustment, an adding and a deleting operation.
  • the first mode to the fourth mode are the process of determining a carrier or updating a carrier.
  • the method may further include: acquiring, by the first base station, signal quality information of the second base station and/or a measurement report reported by the user equipment, where For the following three cases: Case A, the method shown in FIG. 1 further includes: the first base station receiving the second base station signal quality information; at this time, the first base station selecting the carrier includes: the first base station according to the obtained carrier information and the second base station signal quality information Update carrier
  • Case B the method shown in FIG. 1 further includes: the first base station receiving the measurement report reported by the user equipment; at this time, the first base station selecting the carrier includes: the first base station according to the obtained carrier information and the measurement report reported by the user equipment Update carrier
  • the method of Figure 1 further includes: the first base station receiving the second base station signal quality information and the measurement report reported by the user equipment; at this time, the first base station selecting the carrier comprises: the first base station according to the obtained carrier information And updating the carrier by the second base station signal quality information and the measurement report reported by the user equipment.
  • the manner of obtaining the interference information of the carrier may include:
  • the first base station receives the interference information of the carriers of all the cells or all the neighboring cells that are actively sent by the second base station, that is, the first base station receives the information actively pushed by the second base station; that is, the first base station receives the information sent by the second base station.
  • the first base station sends an Invoke indication to the second base station, where the call indication information is used to indicate that the second base station sends interference information of a carrier of a cell of the second base station or The interference information of the carrier of the cell under the second base station adjacent to the cell is sent to the first base station.
  • the second base station sends the interference information of the carriers of all the cells or all the neighboring cells to the first base station according to the received call indication information, and the specific information may be sent to the first base station by using Load Information.
  • the invoke indication is extended, that is, when the second base station receives the Invoke indication, the carrier interference information of all the cells is returned; at this time, the returned Load Information message can also carry the ABS at the same time.
  • Information ABS Information
  • the request is sent to the second base station only when the first base station needs the interference information of the carrier, the timing of the second base station is avoided, and the processing resources of the second base station are saved; and the first The base station periodically processes the information sent by the second base station, and also saves the resources of the first base station and the network load, so that the processing efficiency is higher.
  • the interference situation of each carrier in the neighboring cell can be known, the inter-cell interference can be minimized, and the system capability can be improved.
  • interference information between the same-frequency cells can be avoided, and interference coordination on all carriers of the neighboring base station cells is realized.
  • the embodiment of the present invention further provides an apparatus for selecting a carrier.
  • the apparatus includes: a carrier information obtaining unit 201, configured to obtain carrier information of a cell under the second base station; and a carrier selecting unit 202, configured to The carrier information obtained by the carrier information obtaining unit selects a carrier.
  • the device is located in the first base station, and the carrier information obtaining unit is specifically configured to: before the first base station starts the serving cell or determines the cell information of the serving cell, passes the inter-base station interface between the first base station and the second base station. Obtaining carrier information of a cell under the second base station;
  • the first base station Before the first base station starts the serving cell or determines the cell information of the serving cell, acquiring, by the first base station, the carrier information of the cell under the second base station from the operation management and maintenance system; or
  • the first base station Before the first base station starts the serving cell or determines the cell information of the serving cell, the first base station receives the uplink carrier signal of the second base station, and determines the carrier information of the cell of the second base station according to the uplink carrier signal; or
  • the inter-cell interference coordination process of the first base station and the second base station is used to obtain carrier information of the cell under the second base station or the second base station adjacent to the cell under the first base station. Carrier information of the cell; or,
  • the carrier information between the second base station lower cell or the first base station and the second base station all neighboring cells is obtained through the inter-base station interface establishment process or the base station configuration update process.
  • the carrier information includes one of carrier frequency and bandwidth information, carrier interference information, and carrier transmit power information.
  • the carrier selection unit is specifically configured to determine a carrier and/or an update carrier, where the update carrier includes at least one of an adjustment, an increase, and a deletion operation.
  • the device also includes: a first receiving subunit, configured to receive signal quality information of the second base station;
  • the carrier selection unit includes: a first update subunit, configured to update the carrier according to the carrier information obtained by the carrier information obtaining unit and according to the second base station signal quality information received by the first receiving subunit;
  • the device also includes:
  • a second receiving subunit configured to receive a measurement report reported by the user equipment
  • the carrier selection unit includes: a second update subunit, configured to: according to the carrier information, obtain the carrier information obtained by the unit, and update the carrier according to the measurement report reported by the user equipment received by the second receiving subunit;
  • the device also includes:
  • a third receiving subunit configured to receive signal quality information of the second base station and a measurement report reported by the user equipment
  • the carrier selection unit includes: a third update subunit, configured to use the carrier information obtained by the carrier information obtaining unit, and the second base station signal quality information received by the third receiving subunit, and the user equipment reported The measurement report updates the carrier.
  • the device provided by the foregoing embodiment can improve the interference situation of neighboring cells on all carriers when the base stations of each mode can support multiple carriers, thereby minimizing inter-cell interference and improving system capability. Moreover, interference information between the same frequency cells can be avoided, and interference coordination of all cells under all carriers is realized.
  • the embodiment of the present invention further provides a base station, where the first base station selects a carrier, where the base station includes:
  • a carrier information obtaining unit configured to obtain carrier information of a cell under the second base station
  • a carrier selection unit configured to select a carrier according to the carrier information obtained by the carrier information obtaining unit.
  • the carrier information obtaining unit is specifically configured to:
  • the carrier information of the cell under the second base station is obtained by using the inter-base station interface between the first base station and the second base station;
  • the first base station Before the first base station starts the serving cell or determines the cell information of the serving cell, the first base station obtains the carrier information of the cell under the second base station from the operation management and maintenance system; or
  • the first base station Before the first base station starts the serving cell or determines the cell information of the serving cell, the first base station receives the uplink carrier signal of the second base station, and determines the carrier information of the cell of the second base station according to the uplink carrier signal; or
  • the inter-cell interference coordination process of the first base station and the second base station is used to obtain carrier information of the cell under the second base station or the second base station adjacent to the cell under the first base station. Carrier information of the cell; or,
  • the carrier information between the second base station lower cell or the first base station and the second base station all neighboring cells is obtained through the inter-base station interface establishment process or the base station configuration update process.
  • the base station provided by the foregoing embodiment can support multiple carriers, the interference situation of neighboring cells on all carriers can be known, the inter-cell interference can be minimized, and the system capability can be improved. Moreover, interference information between the same frequency cells can be avoided, and interference coordination of all cells under all carriers is realized.
  • the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

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Abstract

本发明实施例提供了一种选择载波的方法、装置及基站,所述方法包括,第一基站获得第二基站下小区的载波信息;第一基站根据所获得的所述载波信息,选择载波应用本发明实施例,当各个形态的基站可以支持多个载波时,能够了解到所有载波上邻小区的干扰情况,最大限度的降低小区间干扰,提高系统能力。避免了在只能协调同频小区间的干扰信息,实现了所有载波下所有小区的干扰协调。

Description

选择载波的方法、 装置及基站
本申请要求了于 2011年 8月 4日提交中国专利局,申请号为 201110222472.8、 发明名称为 "选择载波的方法、 装置及基站" 的中国申请的优先权, 其全部 内容通过引用结合在本申请中。 技术领域
本发明涉及无线通信系统, 特别涉及一种选择载波的方法、 装置及基站。 背景技术
随着移动宽带的发展, 终端用户的带宽需求极大的提高, 而现有以宏网 络为主的组网方式, 将无法满足移动宽带业务所需要的比特速率。 为了进一 步提升系统容量, 可以在宏网络范围内引入更多低功率接入点或者小基站 (下面统一称为小基站)来提升系统容量。小基站的发射功率小于宏基站的发射 功率, 所以下行覆盖范围远小于宏基站的下行覆盖范围。 以长期演进(LTE, Long Term Evolution ) 系统为例, 该系统下的归属基站 ( Home eNodeB ), . 基站( micro eNodeB ), 微微基站( pico eNodeB ), 中继基站( Relay eNodeB ), 家用基站( femto eNodeB ), 射频拉远单元( RRH, remote radio head )等接入 点 ( access point )都可以被称为小基站。
这种混合组网方式可以增强热点区域覆盖、 室内盲点 (或弱点)覆盖、 宏基 站的小区边缘覆盖, 提升小区平均吞吐量、 小区边缘吞吐量、 小区的上行 /下 行频谱利用率、 降低网络成本及运营商的 CAPEX(capital expenditure)等。这种 混合组成的网络被称为异构网络。
在通信系统, 如 LTE系统中, 载波聚合作为一项重要技术被引入, 基站 可以同时提供多个载波, 基站可以为一个支持载波聚合的终端使用多个载波 提供服务, 从而提高用户数据速率, 增强用户感受。
当各个形态的基站可以支持多个载波时, 如何选择合适的载波, 或者载 波组合, 从而最大限度的降低小区间干扰, 提高系统能力, 是一个需要解决 的问题。 现有技术中,在 LTE系统中, X2接口上支持同频小区间干扰协调,例如, 基站 1会将同频邻小区带来的上行干扰, 该基站 1可能对邻小区造成的上行 干扰, 以及该基站 1 的下行窄带发射功率大小告知给邻基站, 从而实现在基 站间干扰协调的作用。
上述方法仅支持同频小区间信息的交互, 在异频下无法选择合适的小区 以避免小区间干扰。 例如, 当一个基站 eNB3仅拥有一个载波 1上的小区 6 时, 无法获取邻基站 eNBl,eNB2载波 2,3上的小区 1,2,3,4,5的干扰信息, 从 而当该基站 eNB3需要增加载波时, 不能很好的了解到载波 2,3上邻小区的干 扰情况, 无法避免小区间干扰。
并且当前在两个基站建立 X2接口时,每个基站会将其小区信息发给邻基 站, 该小区信息包括该小区的上下行载波频率、 带宽等信息, 并且现有技术 中当基站没有确定好小区信息之前, 无法建立 X2接口。 在现有技术中, 没有 相邻小区之间利用载波信息进行干扰协调的方法。 发明内容
本发明实施例提供一种选择载波的方法、 装置及基站, 能够大幅降低小 区间干扰, 提高系统能力。
一方面, 提供了一种选择载波的方法, 所述方法包括:
第一基站获得第二基站下小区的载波信息;
所述第一基站根据所获得的所述载波信息, 选择载波。
另一方面, 还提供了一种选择载波的装置, 所述装置包括:
载波信息获得单元, 用于获得第二基站下小区的载波信息;
载波选择单元, 用于根据所述载波信息获得单元获得的所述载波信息, 选择载波。
再一方面, 还提供了一种基站, 所述基站包括:
载波信息获得单元, 用于获得第二基站下小区的载波信息;
载波选择单元, 用于根据所述载波信息获得单元所获得的所述载波信息, 选择载波。
由于一个基站无法在开启服务小区或确定小区信息前获得邻小区的载波 使用情况, 不利于邻小区通过规避使用相同的载波或选择使用较少的载波来 进行干扰协调。 而应用上述实施例提供的选择载波的方法、 装置及基站, 当 各个形态的基站可以支持多个载波时, 能够了解到多个载波上邻小区的干扰 情况, 最大限度的降低小区间干扰, 提高系统能力。 而且, 避免了在只能协 调同频小区间的干扰信息, 实现了多个载波下多个小区的干扰协调。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作筒单地介绍, 显而易见地, 下面 描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是根据本发明实施例的一种选择载波的方法流程图; 图 2是根据本发明实施例的一种选择载波的装置逻辑结构示意图。
具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而 不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作 出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
基站间可以建立接口, 如在 LTE系统中基站间接口为 X2接口, 从而实 现基站间信令及数据的交互, 下面以 LTE系统为例进行说明。 当然, 本申请 并不限于 LTE系统, 对于其他系统同样适用。
在 X2接口建立的过程中,两基站会彼此交互各自的上下行载波频率及带 宽等应用信息, 并且基站间存在配置更新流程, 可以进一步的更新各应用信 息。 一种可能的实现方式是, 在服务小区信息(Served Cell Information ) 中第 一基站将自身的应用信息告知相邻的第二基站。以频分双工( FDD , Frequency Division Duplexing ) 系统为例, 上述应用信息可以如表 1所示: 表 1
Figure imgf000005_0001
在 X2接口建立流程中,第一基站会将自己各个小区的信息发送给第二基 站, 如表 2所示, 服务小区 ( Served Cells ) 的范围 (Range )为 1到最大小区 的个数( maxCellineNB )。
表 2
Figure imgf000005_0002
这意味着第一基站在和第二基站建立 X2接口时, 至少已经开启一个为 UE提供服务的小区或确定了一个小区的小区信息。 该小区信息至少包括上下 行载波频率和带宽信息等内容。 为了能在 X2接口建立之前获得邻基站所使用的所有载波信息,本发明实 施例提供了一种选择载波的方法, 参见图 1 ,应用于支持一个或多个载波的基 站, 这里, 支持多个载波的基站是指可以同时支持多个载波的基站, 支持一 个载波的基站是指能够在多个不同的载波中选择一个载波的基站, 即前者相 当于一个基站可以同时使用多个载波, 而后者相当于一个基站每次只能使用 一种载波, 但每次所选择的载波可以相同或不同。 图 1 所示方法可以具体包 括:
步骤 101 , 第一基站获得第二基站下小区的载波信息;
具体的, 第一基站获得第二基站下小区的载波信息的方式包括可以采取 以下方式之一实现:
方式 a, 在第一基站开启服务小区或确定服务小区的小区信息前, 第一基 站与第二基站执行 X2建立过程; 这样, 所述第一基站在所述 X2建立过程中获 得第二基站所有小区的载波信息; 也就是说, 第一基站通过第一基站和第二 基站之间的基站间接口, 获得第二基站下小区的载波信息;
方式 b, 在第一基站开启服务小区或确定服务小区的小区信息前, 所述第 一基站从操作管理维护系统( OAM, Operation Administration and Maintenance ) 获取第二基站下小区的载波信息;
方式 c, 在第一基站开启服务小区或确定服务小区的小区信息前, 所述第 一基站接收第二基站的上行载波信号, 根据所述上行载波信号确定第二基站 下小区的载波信息;
方式 d, 在第一基站开启服务小区后, 第一基站与第二基站进行小区间干 扰协调 (ICIC )操作; 这样, 通过第一基站与第二基站的小区间干扰协调过 程, 第一基站获得第二基站下小区的载波信息或者与第一基站下的小区相邻 的所述第二基站下小区的载波信息;
上述 ICIC操作通常指交互负载信息(Load Information ), 以便根据获得的 邻小区上行干扰负责指示( 01, overload indication ), 高干扰指示( ΗΠ, High Interference Indication ) 信息, 下行相对窄带传输功率 (RNTP , Relative Narrowband Tx Power )信息, 类空子†j¾ ( ABS , almost blank subframe )信息 , 选择干扰较小的上行和 /或下行载波;
需要说明的是, 在本实施例中, 此处进行 ICIC时, 不受同频小区的限制, 即第二基站会将自己所有服务小区的相关信息发送给相邻的第一基站, 从而 避免只限于同频干扰协调。 或者第二基站将自己与第一基站所有相邻小区的 相关信息发送给第一基站, 此时所有相邻小区的识别方法可以由 OAM配置获 得, 或根据 UE测量上报获得。 方式 e, 在第一基站开启服务小区后, 通过基站间接口建立过程如 X2接口 建立过程, 或者基站配置更新过程, 获得第二基站下小区的载波信息或者与 所述第一基站下的小区相邻的所述第二基站下的小区的载波信息。
需要说明的是, 上述载波信息包括载波频率和带宽信息, 载波的干扰信 息, 载波的发射功率信息至少之一。 也就是说, 上述载波信息可以包括上述 三种之一或任意组合。
其中, 发射功率信息在第一基站与第二基站建立基站间接口的过程中获 得。 载波的干扰信息包括第二基站下小区的载波干扰信息或者与第一基站下 小区相邻的所述第二基站下小区的载波的干扰信息, 且所述载波的干扰信息 在第一基站与第二基站建立起基站间接口后, 由所述第一基站在小区间干扰 协调操作过程中获得。
步骤 102, 第一基站根据所获得的所述载波信息, 选择载波。
这里, 选择载波的操作包括, 确定载波和 /或更新载波, 其中更新载波包 括, 调整、 增加和删除操作至少之一, 即对载波进行调整、 增加和 /或删除。
由于第一基站所获得的载波信息所包含的具体内容不同, 因此选择载波 的方式也不尽相同, 下面分别说明。
方式一: 如果载波信息具体包括载波频率和带宽信息, 且所述载波频率 和带宽信息具体包括上行载波频率和带宽信息和 /或下行载波频率和带宽信 息; 此时, 所述第一基站根据所获得的所述载波信息, 选择载波的步骤包括: 第一基站根据上行载波的载波频率和带宽信息, 确定当前使用次数低于 使用阈值或者未使用的上行载波作为当前使用的上行载波; 和 /或
第一基站根据下行载波的载波频率和带宽信息, 确定当前使用次数低于 使用阈值或者未使用的下行载波作为当前使用的下行载波。
需要说明的是, 如果载波频率和带宽信息只包括上行载波频率和带宽信 息, 则可以只确定当前使用的上行载波; 如果载波频率和带宽信息只包括下 行载波频率和带宽信息, 则可以只确定当前使用的下行载波; 如果载波频率 和带宽信息包括上行和下行载波频率和带宽信息, 则可以只确定当前使用的 上行载波, 或只确定下行载波, 或确定上行和下行载波。
例如, 有两个上行载波和两个下行载波, 上行载波 1被 3个小区使用, 上 行载波 2被 1个小区使用, 则在此区域内, 会确定上行载波 2作为当前使用的上 行载波。如果下行载波 1被 3个小区使用, 下行载波 2没有使用, 则在此区域内, 会确定下行载波 2作为当前使用的下行载波。
方式二: 如果载波信息包括载波的发射功率信息, 图 1所述方法还包括: 第一基站接收到的第二基站下小区的信号强度信息;
此时, 所述第一基站根据所获得的所述载波信息, 选择载波的步骤包括: 根据所述载波的发射功率信息, 以及接收到的第二基站下小区的信号强 度信息, 获取所述第二基站的小区的路损信息, 根据所获取的路损信息, 确 定路损最大或高于或等于路损阈值的下行载波作为当前使用的下行载波。
例如, 第一基站根据发射功率信息以及第二基站的小区 1、 2、 3的信号强 调信息, 计算出第二基站下小区 1的路损信息是 1 , 小区 2的路损信息是 0. 8 , 小区 3的路损信息是 0.3 , 那么, 根据预先设定的策略, 如果确定路损最大的作 为当前使用的下行载波则选择小区 1;如果确定超过路损阈值如路损阈值为 0.5 的作为当前使用的下行载波则选择小区 1或小区 2。
方式三: 如果载波信息包括载波的干扰信息时, 且所述载波的干扰信息 具体包括上行载波干扰信息和 /或下行载波干扰信息; 此时, 第一基站根据所 获得的所述载波信息, 选择载波的步骤包括:
第一基站根据上行载波的干扰信息, 确定干扰低于或等于干扰阈值或无 干扰的上行载波作为当前使用的下行载波; 和 /或
第一基站根据下行载波的干扰信息, 确定干扰低于或等于干扰阈值或无 干扰的下行载波作为当前使用的下行载波。
方式四: 其与方式三的区别是载波的干扰信息中还包括下行干扰指示信 息, 则可以根据下行载波的干扰信息和下行干扰指示信息, 确定干扰低于或 等于干扰阈值或无干扰的下行载波作为当前使用的下行载波。
具体的, 载波信息包括载波的干扰信息时, 所述载波的干扰信息具体包 括上行载波干扰信息以及下行干扰指示信息, 和 /或下行载波干扰信息以及下 行干扰指示信息;
所述第一基站根据所获得的所述载波信息, 选择载波的步骤包括: 第一基站根据上行载波的干扰信息, 确定干扰低于或等于干扰阈值或无 干扰的上行载波作为当前使用的下行载波; 和 /或
第一基站根据下行载波的干扰信息和下行干扰指示信息, 确定干扰低于 或等于干扰阈值或无干扰的下行载波作为当前使用的下行载波。
对于方式三和方式四需要说明的是, 如果载波的干扰信息只包括上行载 波的干扰信息, 则可以只确定当前使用的上行载波; 如果载波的干扰信息只 包括下行载波的干扰信息, 则可以只确定当前使用的下行载波; 如果载波的 干扰信息包括上行和下行载波的干扰信息, 则可以只确定当前使用的上行载 波, 或只确定下行载波, 或确定上行和下行载波。
需要说明的是, 无论采用上述方式一至方式四中的哪种方式,
如果第一基站已确定了上行载波, 则第一基站可以根据已选择的上行载 波, 以及上下行载波配对表, 选择下行载波;
如果第一基站已确定了下行载波, 则第一基站可以根据已选择的下行载 波, 以及上下行载波配对表, 选择上行载波;
如果第一基站已确定了上行载波, 则第一基站可以根据已选择的上行载 波, 以及第二基站下小区的上下行载波配对信息, 选择下行载波;
如果第一基站已确定了下行载波, 则第一基站可以根据已选择的下行载 波, 以及第二基站下小区的上下行载波配对信息, 选择上行载波。
至此, 实现了第一基站实现了载波的选择。
需要说明的是, 上述步骤 102中, 可以一次选择一对上下行载波, 也可以 一次选择多个上行载波和多个下行载波, 且所选择的上行载波的数量和下行 载波的数量可以相同也可以不同。 需要说明的是, 在步骤 101中采用方式 a时, 由于允许在第一基站开启为 终端提供服务的小区或确定了一个小区的小区信息前, 第一基站与第二基站 执行 X2建立过程, 此处具体涉及的协议修改如表 3所示: 表 3 紧急性 紧急程度
IE 名 称 是否存 范 围 IE类型 语义描述
( IE/Group 在 (Presence) (Range ) 和参数 (IE ( Semantics Criticalit Assigne Name ) type and description ) y d Criticality reference )
Message Type M 9.2.13 YES reject
Global eNB ID M 9.2.22 YES reject
Served Cells 0 to Complete YES reject maxCellineNB list of cells
served by the
eNB
>Served Cell M 9.2.8
Information
需要说明的是, 在上述方式四中, 上述下行干扰指示信息为第一基站 (或 第一基站下的 UE)接收到的第一频率上所有邻基站小区的干扰强度的指示,具 体可以采用 "高, 中, 低", 或 "高, 低,,, 或 "分贝值" 等方式进行指示。
针对上述下行干扰指示信息, 具体涉及的协议修改如表 4所示:
表 4
Figure imgf000010_0001
上述步骤 102中的选择载波包括确定载波和更新载波, 而更新载波的操作 又包括调整、 增加和删除操作至少之一。 上面方式一至方式四是确定载波或 更新载波的过程, 对于需要更新载波时还可以包括: 第一基站还需要获取第 二基站信号质量信息和 /或用户设备上报的测量报告, 具体的, 可以分为下面 三种情况: 情况 A, 图 1所示方法还包括: 第一基站接收第二基站信号质量信息; 此 时, 第一基站选择载波包括: 第一基站根据所获得的所述载波信息以及第二 基站信号质量信息更新载波;
情况 B , 图 1所示方法还包括: 第一基站接收用户设备上报的测量报告; 此时, 第一基站选择载波包括: 第一基站根据所获得的所述载波信息以及用 户设备上报的测量报告更新载波;
情况 C, 图 1所述方法还包括: 第一基站接收第二基站信号质量信息和用 户设备上报的测量报告; 此时, 第一基站选择载波包括: 第一基站根据所获 得的所述载波信息以及第二基站信号质量信息和用户设备上报的测量报告更 新载波。 需要说明的是, 前述步骤 101中, 所述载波的干扰信息的获得方式可以包 括:
第一基站接收到第二基站主动发送的所有小区或者所有相邻小区的载波 的干扰信息, 即第一基站接收第二基站主动推送的信息; 也即第一基站接收 到第二基站发送的所述第二基站下小区的载波的干扰信息或者与所述第一基 站下的小区相邻的所述第二基站下小区的载波的干扰信息; 或者,
第一基站向第二基站发送调用指示信息(Invoke indication ), 所述调用指 示信息用于指示所述第二基站将所述第二基站的小区的载波的干扰信息或者 与所述第一基站下的小区相邻的所述第二基站下小区的载波的干扰信息发送 给第一基站。 第二基站根据接收到的调用指示信息将自身所有小区或者所有 相邻小区的载波的干扰信息发送给第一基站,具体的可以通过负载信息( Load Information )发送给第一基站。这里,相当于对调用指示信息( Invoke indication ) 进行了扩展, 即当第二基站接收到 Invoke indication时, 返回了所有小区的载 波干扰信息; 此时, 返回的 Load Information消息中也可同时携带 ABS信息 ( ABS Information )。
使用后一种方式, 只在第一基站需要载波的干扰信息时才向第二基站发 起请求, 避免了第二基站的定时推送, 节省了第二基站的处理资源; 并且, 也避免了第一基站定时处理第二基站发来的信息, 同时也节省了第一基站的 资源以及网络负载, 使得处理效率更高。 应用上述实施例提供的方法, 当各个形态的基站可以支持多个载波时, 能够了解到邻小区各载波的干扰情况, 最大限度的降低小区间干扰, 提高系 统能力。 而且, 避免了在只能协调同频小区间的干扰信息, 实现了相邻基站 小区所有载波上的干扰协调。 本发明实施例还提供了一种选择载波的装置, 参见图 2, 所述装置包括: 载波信息获得单元 201 , 用于获得第二基站下小区的载波信息; 载波选择单元 202, 用于根据所述载波信息获得单元获得的所述载波信 息, 选择载波。
其中, 所述装置位于第一基站, 所述载波信息获得单元具体用于, 在第一基站开启服务小区或确定服务小区的小区信息前, 通过第一基站 和第二基站之间的基站间接口, 获得第二基站下小区的载波信息;
或者,
在第一基站开启服务小区或确定服务小区的小区信息前, 通过所述第一 基站从操作管理维护系统获取第二基站下小区的载波信息; 或者,
在第一基站开启服务小区或确定服务小区的小区信息前, 通过所述第一 基站接收第二基站的上行载波信号, 根据所述上行载波信号确定第二基站下 小区的载波信息; 或者,
在第一基站开启服务小区后, 通过第一基站与第二基站的小区间干扰协 调过程, 获得第二基站下小区的载波信息或者与第一基站下的小区相邻的所 述第二基站下小区的载波信息; 或者,
在第一基站开启服务小区后, 通过基站间接口建立过程, 或者基站配置 更新过程, 获得第二基站下小区或者第一基站与第二基站所有相邻小区的载 波信息。
其中, 所述载波信息包括载波频率和带宽信息, 载波的干扰信息, 载波 的发射功率信息三者中的其中之一。
其中, 所述载波选择单元具体用于, 确定载波和 /或更新载波, 所述更新 载波包括, 调整、 增加和删除操作至少之一。
其中, 当需要更新载波时,
所述装置还包括: 第一接收子单元, 用于接收第二基站信号质量信息;
所述载波选择单元包括: 第一更新子单元, 用于根据所述载波信息获得 单元获得的所述载波信息以及根据所述第一接收子单元接收的第二基站信号 质量信息更新载波;
或者,
所述装置还包括:
第二接收子单元, 用于接收用户设备上报的测量报告;
所述载波选择单元包括: 第二更新子单元, 用于根据所述载波信息获得 单元获得的所述载波信息以及根据所述第二接收子单元接收的用户设备上报 的测量报告更新载波;
或者,
所述装置还包括:
第三接收子单元, 用于接收第二基站信号质量信息和用户设备上报的测 量报告;
所述载波选择单元包括: 第三更新子单元, 用于根据所述载波信息获得 单元获得的所述载波信息以及根据所述第三接收子单元接收的第二基站信号 质量信息和用户设备上报的测量报告更新载波。
应用上述实施例提供的装置 , 当各个形态的基站可以支持多个载波时, 能够了解到所有载波上邻小区的干扰情况, 最大限度的降低小区间干扰, 提 高系统能力。 而且, 避免了在只能协调同频小区间的干扰信息, 实现了所有 载波下所有小区的干扰协调。
本发明实施例还提供了一种基站, 用于第一基站选择载波, 所述基站包 括:
载波信息获得单元, 用于获得第二基站下小区的载波信息;
载波选择单元, 用于根据所述载波信息获得单元所获得的所述载波信息, 选择载波。
其中, 所述载波信息获得单元具体用于,
在第一基站开启服务小区或确定服务小区的小区信息前, 通过第一基站 和第二基站之间的基站间接口, 获得第二基站下小区的载波信息;
或者, 在第一基站开启服务小区或确定服务小区的小区信息前, 通过所述第一 基站从操作管理维护系统获取第二基站下小区的载波信息; 或者,
在第一基站开启服务小区或确定服务小区的小区信息前, 通过所述第一 基站接收第二基站的上行载波信号, 根据所述上行载波信号确定第二基站下 小区的载波信息; 或者,
在第一基站开启服务小区后, 通过第一基站与第二基站的小区间干扰协 调过程, 获得第二基站下小区的载波信息或者与第一基站下的小区相邻的所 述第二基站下小区的载波信息; 或者,
在第一基站开启服务小区后, 通过基站间接口建立过程, 或者基站配置 更新过程, 获得第二基站下小区或者第一基站与第二基站所有相邻小区的载 波信息。
应用上述实施例提供的基站 , 当各个形态的基站可以支持多个载波时, 能够了解到所有载波上邻小区的干扰情况, 最大限度的降低小区间干扰, 提 高系统能力。 而且, 避免了在只能协调同频小区间的干扰信息, 实现了所有 载波下所有小区的干扰协调。
对于装置和基站实施例而言, 由于其基本相似于方法实施例, 所以描述 的比较筒单, 相关之处参见方法实施例的部分说明即可。
需要说明的是, 在本文中, 诸如第一和第二等之类的关系术语仅仅用来 将一个实体或者操作与另一个实体或操作区分开来, 而不一定要求或者暗示 这些实体或操作之间存在任何这种实际的关系或者顺序。 而且, 术语"包括"、 "包含"或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要 素的过程、 方法、 物品或者设备不仅包括那些要素, 而且还包括没有明确列 出的其他要素, 或者是还包括为这种过程、 方法、 物品或者设备所固有的要 素。 在没有更多限制的情况下, 由语句 "包括一个 ...... "限定的要素, 并不排除 在包括所述要素的过程、 方法、 物品或者设备中还存在另外的相同要素。
本领域普通技术人员可以理解实现上述方法实施方式中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成, 所述的程序可以存储于计算机 可读取存储介质中, 这里所称得的存储介质, 如: ROM/RAM、磁碟、 光盘等。
以上所述仅为本发明的较佳实施例而已, 并非用于限定本发明的保护范 围。 凡在本发明的精神和原则之内所作的任何修改、 等同替换、 改进等, 均 包含在本发明的保护范围内。

Claims

权利要求书
1、 一种选择载波的方法, 其特征在于, 所述方法包括:
第一基站获得第二基站下小区的载波信息;
所述第一基站根据所获得的所述载波信息, 选择载波。
2、 根据权利要求 1所述的方法, 其特征在于, 所述第一基站获得第二基站 下小区的载波信息的方式包括:
在所述第一基站开启服务小区或确定服务小区的小区信息前, 所述第一基 站通过第一基站和第二基站之间的基站间接口, 获得第二基站下小区的载波信 或者,
在所述第一基站开启服务小区或确定服务小区的小区信息前, 所述第一基 站从操作管理维护系统获取所述第二基站下小区的载波信息;
或者,
在所述第一基站开启服务小区或确定服务小区的小区信息前, 所述第一基 站接收所述第二基站的上行载波信号, 根据所述上行载波信号确定所述第二基 站下小区的载波信息; 或者,
在第一基站开启服务小区后, 通过第一基站与第二基站的小区间干扰协调 过程, 获得第二基站下的小区的载波信息或者与所述第一基站下的小区相邻的 所述第二基站下的小区的载波信息; 或者,
在第一基站开启服务小区后, 通过基站间接口建立过程, 或者基站配置更 新过程, 获得第二基站下小区的载波信息或者与所述第一基站下的小区相邻的 所述第二基站下的小区的载波信息。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述载波信息包括载波频 率和带宽信息, 载波的干扰信息, 载波的发射功率信息三者中的至少一个。
4、 根据权利要求 3所述的方法, 其特征在于, 当所述载波信息包括载波频 率和带宽信息时, 所述载波频率和带宽信息具体包括上行载波的频率和带宽信 息, 和 /或下行载波的载波频率和带宽信息;
所述第一基站根据所获得的所述载波信息, 选择载波, 包括: 所述第一基站根据所述上行载波的载波频率和带宽信息, 确定当前使用次 数低于使用阈值的上行载波或者未使用的上行载波作为当前使用的上行载波; 和 /或
所述第一基站根据下行载波的载波频率和带宽信息, 确定当前使用次数低 于使用阈值的下行载波或者未使用的下行载波作为当前使用的下行载波。
5、 根据权利要求 3所述的方法, 其特征在于, 当所述载波信息包括载波的 发射功率信息时, 所述方法还包括:
所述第一基站接收所述第二基站下小区的信号强度信息;
所述第一基站根据所获得的所述载波信息, 选择载波, 包括:
根据所述载波的发射功率信息, 以及接收到的第二基站下小区的信号强度 信息, 获取所述第二基站的小区的路损信息, 根据所获取的路损信息, 确定路 损最大或高于或等于路损阈值的下行载波作为当前使用的下行载波。
6、 根据权利要求 1所述的方法, 其特征在于, 当所述载波信息包括载波的 干扰信息时, 所述载波的干扰信息具体包括上行载波干扰信息和 /或下行载波干 扰信息;
所述第一基站根据所获得的所述载波信息, 选择载波, 包括:
第一基站根据上行载波的干扰信息, 确定干扰低于或等于干扰阈值或无干 扰的上行载波作为当前使用的上行载波; 和 /或
第一基站根据下行载波的干扰信息, 确定干扰低于或等于干扰阈值或无干 扰的下行载波作为当前使用的下行载波。
7、 根据权利要求 6所述的方法, 其特征在于, 当所述载波信息包括载波的 干扰信息时, 所述载波的干扰信息包括上行载波干扰信息以及下行干扰指示信 息, 和 /或, 所述载波的干扰信息包括下行载波干扰信息以及下行干扰指示信息; 所述第一基站根据所获得的所述载波信息, 选择载波, 包括:
第一基站根据上行载波的干扰信息, 确定干扰低于或等于干扰阈值或无干 扰的上行载波作为当前使用的下行载波; 和 /或
第一基站根据下行载波的干扰信息和下行干扰指示信息, 确定干扰低于或 等于干扰阈值或无干扰的下行载波作为当前使用的下行载波。
8、 根据权利要求 3所述的方法, 其特征在于, 所述发射功率信息在第一基 站与第二基站建立基站间接口的过程中获得。
9、 根据权利要求 3所述的方法, 其特征在于, 所述载波的干扰信息包括第 二基站下小区的载波的干扰信息或者与所述第一基站下的小区相邻的所述第二 基站下的小区的载波的干扰信息, 且所述载波的干扰信息在所述第一基站与所 述第二基站建立起基站间接口后, 由所述第一基站在小区间干扰协调操作过程 中获得。
10、 根据权利要求 4-9任一权利要求所述的方法, 其特征在于, 所述第一基 站获得第二基站下小区的载波信息, 包括:
第一基站接收到第二基站发送的所述第二基站下小区的载波的干扰信息或 者与所述第一基站下的小区相邻的所述第二基站下小区的载波的干扰信息; 或 者,
第一基站向第二基站发送调用指示信息, 所述调用指示信息用于指示所述 第二基站将所述第二基站的小区的载波的干扰信息或者与所述第一基站下的小 区相邻的所述第二基站下小区的载波的干扰信息发送给第一基站。
11、 根据权利要求 1所述的方法, 其特征在于,
所述选择载波, 包括:
确定载波和 /或更新载波, 所述更新载波包括: 调整、 增加和删除载波中的 至少之一。
12、 根据权利要求 11所述的方法, 其特征在于,
所述方法还包括:
第一基站接收第二基站的信号质量信息;
所述选择载波包括: 当所述第一基站更新载波时, 所述第一基站根据所获 得的所述载波信息以及第二基站信号质量信息更新载波; 或者,
所述方法还包括: 第一基站接收用户设备上报的测量报告;
所述选择载波包括: 当所述第一基站更新载波时, 所述第一基站根据所获 得的所述载波信息以及用户设备上报的测量报告更新载波;
或者,
所述方法还包括: 第一基站接收第二基站的信号质量信息和用户设备上报 的测量报告;
所述第一基站选择载波包括: 当所述第一基站更新载波时, 第一基站根据 所获得的所述载波信息以及第二基站信号质量信息和用户设备上报的测量报告 更新载波。
13—种选择载波的装置, 其特征在于, 所述装置包括:
载波信息获得单元, 用于获得第二基站下小区的载波信息;
载波选择单元, 用于根据所述载波信息获得单元获得的所述载波信息, 选 择载波。
14、 根据权利要求 13所述的装置, 其特征在于, 所述装置位于第一基站, 所述载波信息获得单元, 具体用于在第一基站开启服务小区或确定服务小 区的小区信息前, 通过第一基站和第二基站之间的基站间接口, 获得第二基站 下小区的载波信息;
或者,
在第一基站开启服务小区或确定服务小区的小区信息前, 通过所述第一基 站从操作管理维护系统获取第二基站下小区的载波信息; 或者,
在第一基站开启服务小区或确定服务小区的小区信息前, 通过所述第一基 站接收第二基站的上行载波信号, 根据所述上行载波信号确定第二基站下小区 的载波信息; 或者,
在第一基站开启服务小区后, 通过第一基站与第二基站的小区间干扰协调 过程, 获得第二基站下小区的载波信息或者与第一基站下的小区相邻的所述第 二基站下小区的载波信息; 或者,
在第一基站开启服务小区后, 通过基站间接口建立过程, 或者基站配置更 新过程, 获得第二基站下小区或者第一基站与第二基站所有相邻小区的载波信 息。
15、 根据权利要求 13所述的装置, 其特征在于, 所述载波信息包括载波频 率和带宽信息, 载波的干扰信息, 载波的发射功率信息三者中的其中之一。
16、根据权利要求 13所述的装置,其特征在于,所述载波选择单元具体用于, 确定载波和 /或更新载波, 所述更新载波包括, 调整、 增加和删除操作至少之一。
17、 根据权利要求 16所述的方法, 其特征在于, 当需要更新载波时, 所述装置还包括:
第一接收子单元, 用于接收第二基站信号质量信息;
所述载波选择单元包括: 第一更新子单元, 用于根据所述载波信息获得单 元获得的所述载波信息以及根据所述第一接收子单元接收的第二基站信号质量 信息更新载波;
或者,
所述装置还包括:
第二接收子单元, 用于接收用户设备上报的测量报告;
所述载波选择单元包括: 第二更新子单元, 用于根据所述载波信息获得单 元获得的所述载波信息以及根据所述第二接收子单元接收的用户设备上报的测 量报告更新载波;
或者,
所述装置还包括:
第三接收子单元, 用于接收第二基站信号质量信息和用户设备上报的测量 报告;
所述载波选择单元包括: 第三更新子单元, 用于根据所述载波信息获得单 元获得的所述载波信息以及根据所述第三接收子单元接收的第二基站信号质量 信息和用户设备上报的测量报告更新载波。
18、 一种基站, 其特征在于, 所述基站包括: 载波信息获得单元, 用于获得第二基站下小区的载波信息;
载波选择单元, 用于根据所述载波信息获得单元所获得的所述载波信息, 选择载波。
19、 根据权利要求 18所述的基站, 其特征在于,
所述载波信息获得单元具体用于,
在第一基站开启服务小区或确定服务小区的小区信息前, 通过第一基站和 第二基站之间的基站间接口, 获得第二基站下小区的载波信息;
或者,
在第一基站开启服务小区或确定服务小区的小区信息前, 通过所述第一基 站从操作管理维护系统获取第二基站下小区的载波信息; 或者,
在第一基站开启服务小区或确定服务小区的小区信息前, 通过所述第一基 站接收第二基站的上行载波信号, 根据所述上行载波信号确定第二基站下小区 的载波信息; 或者,
在第一基站开启服务小区后, 通过第一基站与第二基站的小区间干扰协调 过程, 获得第二基站下小区的载波信息或者与第一基站下的小区相邻的所述第 二基站下小区的载波信息; 或者,
在第一基站开启服务小区后, 通过基站间接口建立过程, 或者基站配置更 新过程, 获得第二基站下小区或者第一基站与第二基站所有相邻小区的载波信 息。
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CN109511125B (zh) * 2018-11-15 2021-12-03 中国科学院上海微系统与信息技术研究所 一种无线网络中识别邻区干扰与异系统干扰的方法
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