WO2012174828A1 - 调度方法及装置 - Google Patents

调度方法及装置 Download PDF

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Publication number
WO2012174828A1
WO2012174828A1 PCT/CN2011/083458 CN2011083458W WO2012174828A1 WO 2012174828 A1 WO2012174828 A1 WO 2012174828A1 CN 2011083458 W CN2011083458 W CN 2011083458W WO 2012174828 A1 WO2012174828 A1 WO 2012174828A1
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WO
WIPO (PCT)
Prior art keywords
base station
information
neighboring base
transmit power
interference strength
Prior art date
Application number
PCT/CN2011/083458
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English (en)
French (fr)
Inventor
刘锟
鲁照华
罗薇
李卫敏
刘向宇
Original Assignee
中兴通讯股份有限公司
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.)
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012174828A1 publication Critical patent/WO2012174828A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/27—Control channels or signalling for resource management between access points
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • a base station communicates with a terminal through uplink and downlink.
  • the downlink forward refers to the direction of the base station to the terminal
  • the uplink reverse refers to the direction of the terminal to the base station.
  • a plurality of terminals can simultaneously transmit data to the base station through the uplink, or can simultaneously receive data from the base station through the downlink.
  • Orthogonal Frequency Division Multiplexing OFDM
  • the base station and the terminal in the same cell perform downlink data transmission
  • the downlinks of the terminals are orthogonal to each other, so that intra-cell interference can be avoided.
  • the downlinks of the terminals in different cells may not be orthogonal, and therefore each terminal may be subjected to downlink interference from other neighboring cell base stations, that is, inter-cell interference. Reducing the impact of inter-cell interference on system performance is an important goal of OFDM system design. If the interference between cells is serious, the system capacity will be reduced, especially the transmission capacity of the cell edge users will be reduced, which will affect the coverage capability of the system and the terminal. performance.
  • the inter-cell interference coordination technology can effectively reduce the inter-cell interference strength. That is, the coordinated scheduling method can reasonably allocate scheduling resources for neighboring cells, and avoid allocating the same resources to the edge users of neighboring cells.
  • necessary scheduling information must be coordinated between the base stations before scheduling.
  • a base station sends a narrow Narrowband Tx Power (RNTP) signaling to a neighboring base station.
  • RNTP narrow Narrowband Tx Power
  • 1 is a schematic diagram of a RNTP information format according to the related art. As shown in FIG. 1, the available resources of the base station 1 (Base Station 1, abbreviated as BS1) can be divided into N resource blocks (Resource Blocks, RB for short). The index number is RB1, RB2, RB3, ...
  • RNTP For each RB resource, RNTP has a bit information corresponding thereto, where "0" indicates that the RB has low transmission power, "1" It indicates that the transmission power of the RB is high, so the format of the RNTP signaling is "100...01", and the BS1 sends the RNTP signaling to the base stations of the neighboring cells, for example, BS2 and BS3, and FIG. 2 is a RNTP according to the related art.
  • FIG. 2 is a RNTP according to the related art.
  • a scheduling method is provided, which is applied to a base station, where the performing by the base station includes: receiving, by a neighboring base station, information about a transmit power of the neighboring base station on a scheduling unit and downlink interference.
  • Strength information where the downlink interference strength information is used to indicate whether a user scheduled by the neighboring base station on the scheduling unit is interfered by the base station; according to information about receiving the transmit power of the neighboring base station, The downlink interference strength information is adjusted for a scheduling unit used by the base station and/or a transmission power on a scheduling unit used.
  • Receiving the information about the transmit power and the downlink interference strength information sent by the neighboring base station by: receiving the indication signaling sent by the neighboring base station, where the indication signaling carries the downlink The interference strength information is received; or, the scheduling signaling sent by the neighboring base station is received, where the scheduling signaling carries information about the transmit power and the downlink interference strength information on the scheduling unit.
  • Receiving the scheduling signaling sent by the neighboring base station comprising: receiving, by the neighboring base station, narrowband transmit power signaling, where the narrowband transmit power signaling carries the neighboring base station in the different The information about the transmit power on the scheduling unit; the downlink interference strength indication signaling sent by the neighboring base station, where the downlink interference strength indication signaling carries the downlink interference strength information.
  • the indication signaling is narrowband transmit power signaling, where the narrowband transmit power signaling is used to carry information about transmit power of the neighboring base station on the different scheduling unit.
  • the neighboring base station carries the downlink interference strength information on the narrowband transmit power signaling at a predetermined time, and is sent by the neighboring base station to the base station; wherein, the predetermined time is determined by the base station and the phase
  • the neighbor base station determines or is configured by the standard default.
  • the scheduling unit is one or more resource blocks RB.
  • a scheduling apparatus which is applied to a base station, and includes: a receiving module, configured to receive, by a neighboring base station, information about transmit power of the neighboring base station on a scheduling unit and downlink interference The strength information, where the downlink interference strength information is used to indicate whether the user scheduled by the neighboring base station on the scheduling unit is interfered by the base station; and the adjusting module is configured to receive, according to the neighboring base station, The information of the transmit power and the downlink interference strength information are adjusted for the scheduling unit used by the base station and/or the transmit power on the used scheduling unit.
  • the receiving module is configured to receive the information about the transmit power and the downlink interference strength information that are sent by the neighboring base station by: at least one of: receiving indication signaling sent by the neighboring base station, where the indication The downlink interference strength information is carried; or the scheduling signaling sent by the neighboring base station is received, where the scheduling signaling carries information about the transmit power and the downlink interference strength information on the scheduling unit. .
  • the receiving module includes: a first receiving module, where the information about the transmit power and the downlink interference strength information sent by the neighboring base station are received by receiving the scheduling signaling sent by the neighboring base station, And the narrowband transmit power signaling sent by the neighboring base station is received, where the narrowband transmit power signaling carries information about transmit power of the neighboring base station on the different scheduling unit; And the downlink interference strength indication signaling that is sent by the neighboring base station, where the downlink interference strength indication signaling carries the downlink interference strength information, where the signaling is the base station and the phase The neighboring base station is pre-agreed.
  • the indication signaling is narrowband transmit power signaling.
  • the information about the transmit power of the neighboring base station on the scheduling unit and the downlink interference strength information that are sent by the neighboring base station are received, where the downlink interference strength information is used to indicate that the neighboring base station is in the Whether the user scheduled on the scheduling unit is interfered by the base station; the scheduling unit used by the base station according to the information of the transmission power of the neighboring base station and the downlink interference strength information, and/or used
  • the transmission power on the scheduling unit is adjusted to solve the problem of wasting resources in order to avoid inter-cell interference, thereby achieving the effect of saving resources.
  • FIG. 1 is a schematic diagram of a RNTP information format according to the related art
  • FIG. 2 is a schematic diagram of a RNTP information transmission manner according to the related art
  • FIG. 3 is a schematic diagram of a topology of a wireless communication system according to the related art
  • 4 is a flowchart of a scheduling method according to an embodiment of the present invention
  • FIG. 5 is a structural block diagram of a scheduling apparatus according to an embodiment of the present invention
  • FIG. 6 is a structural block diagram of a receiving module in a scheduling apparatus according to an embodiment of the present invention
  • 7 is a schematic diagram of a topology of a wireless communication system in accordance with a preferred embodiment of the present invention
  • FIG. 8 is a schematic diagram of a downlink interference strength indication signaling format in accordance with a preferred embodiment of the present invention
  • FIG. 9 is another diagram in accordance with a preferred embodiment of the present invention.
  • a schematic diagram of a downlink interference strength indication signaling format BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 3 is a schematic diagram of a topology of a wireless communication system according to the related art.
  • BS1 transmits to its resource scheduling unit 1 to BS2 and BS3 (BS1 is a neighboring base station of BS2 and BS3) (for example, the The scheduling unit may have a high transmit power of one resource block RB1).
  • RNTP the bit on the RNTP is 1 for the scheduling unit 1, indicating that the BS1 is to use the high-power service edge user mobile terminal 1 (Mobile) Station 1 (abbreviated as MSI);
  • MSI mobile subscriber edge user mobile terminal 1
  • BS2 and BS3 need to interfere with BS1, regardless of whether MS1 scheduled by BS1 is really interfered by BS2 and BS3.
  • both BS2 and BS3 need to schedule users. Avoid interference with MS1.
  • MS1 is not necessarily interfered by BS2 and BS3.
  • MS1 in Figure 3 will only be interfered by BS3, but will not be interfered by BS2, but BS2 also dispatches users.
  • FIG. 4 is a flowchart of a scheduling method according to an embodiment of the present invention. As shown in FIG. 4
  • Step S402 Receiving, by the neighboring base station, the information about the transmit power of the neighboring base station on the scheduling unit and the downlink interference strength information, where the downlink interference strength information is used to indicate whether the user scheduled by the neighboring base station on the scheduling unit receives the The interference of the base station, for example, the scheduling unit is one or more resource blocks RB; Step S404, according to the information about the received transmit power of the neighboring base station and the downlink interference strength information, the scheduling unit used by the base station and/or the The transmit power on the scheduling unit used is adjusted.
  • the downlink interference strength information is added, and the information combined with the information of the transmit power can be adjusted to avoid the interference between the base station cells and the resources are used reasonably, thereby saving resources.
  • the downlink interference information is sent in many ways, and the transmission method does not affect the resolution of the technical problem and the acquisition of the technical effect.
  • the base station receives the indication signaling sent by the neighboring base station, where The indication signaling carries the downlink interference strength information, and the indication signaling may be some other signaling listed in the embodiment, as long as the downlink interference information is carried; and, for example, may also be sent by receiving the neighboring base station.
  • the scheduling signaling where the scheduling signaling carries the information about the transmit power and the downlink interference strength information on the scheduling unit, that is, the neighboring base station sends a proprietary signaling, and the proprietary signaling can be performed according to requirements.
  • the format is set in advance.
  • the receiving the scheduling signaling sent by the neighboring base station includes: The narrowband transmit power signaling sent by the neighboring base station, where the narrowband transmit power signaling carries the information about the transmit power of the neighboring base station on different scheduling units; and receives the downlink interference strength indication signaling sent by the neighboring base station, where The downlink interference strength indication signaling carries downlink interference strength information.
  • the processing method is simple to implement and the signaling format is clear.
  • narrowband transmit power signaling may also be used as indication signaling, and the narrowband transmit power signaling is used to carry information about transmit power on different scheduling units of neighboring base stations.
  • the indication signaling is transmitted by using narrowband transmit power.
  • the signaling carries the downlink interference strength indication information, and the narrowband transmission power signaling itself also carries the information of the transmission power of different scheduling units. Therefore, the narrowband transmission power signaling can directly avoid inter-cell interference and save resources.
  • the neighboring base station may carry the downlink interference strength information on the narrowband transmit power signaling at a predetermined moment, where the predetermined moment is determined by the base station and the neighboring base station or configured by a standard default.
  • the existing existing signaling may be used either by receiving the indication signaling or by receiving the scheduling signaling, or one or two new messages may be added for transmitting the two information.
  • the two pieces of information may be transmitted through one narrowband transmit power signaling, or may be separately transmitted through two narrowband transmit power signalings, or may be sent through a narrowband transmit power signaling.
  • One of the two messages, and then the other of the two messages is sent by another piece of signaling.
  • a preferred implementation manner is provided, where the information about the transmit power of the neighboring base station on the scheduling unit and the neighboring base station of the downlink interference strength information are combined to consider the two types of information, for example, BS1 to BS2.
  • the transmitted information indicating the transmit power and the downlink interference strength information may be used in three cases: 1.
  • BS1 has a strong transmit power on RB1, and its corresponding bit is represented as 1, and BS2 brings interference, and the corresponding bit is 1; 2.
  • BS1 has a strong transmit power on RB1, and its corresponding bit is represented as 1, BS2 does not cause interference, and its corresponding bit is 0; 3.
  • BS1's transmit power on RB1 is weak, and its corresponding The bit is 0, in which case it is not necessary to consider whether BS2 will cause interference.
  • 11 means that BS2 does not schedule users on RB1 or has lower transmit power on RB1
  • both 10 and 00 indicate that BS2 can schedule users on RB1 and use higher transmit power
  • 10 and 00 indicate the same, so you can use "0" to represent, and "11” can use "1” to represent, so through a resource
  • the scheduling unit only needs to use one bit to represent it.
  • RNTP is used to transmit the two information, there is no need to make any modification to the RNTP signaling, but the bit values of the RNTP signaling sent to different neighboring base stations may be different, which is related to the prior art. The same bit value is different in the RNTP signaling sent to all neighboring base stations.
  • the method for obtaining the downlink interference strength information may be multiple.
  • the downlink interference strength information sent by the neighboring base station may be from a terminal, and the terminal may receive the signal quality of the neighboring base station and the base station, and obtain that the terminal receives the The interference strength information brought by other base stations of the base station to which the terminal belongs is then notified to the neighboring base station by reporting.
  • a scheduling apparatus is further provided.
  • FIG. 5 is a structural block diagram of a scheduling apparatus according to an embodiment of the present invention. As shown in FIG. 5, the apparatus is applied to a base station, and includes: a receiving module 52 and an adjusting module 54.
  • the device is used to implement the above embodiments and preferred embodiments, and the descriptions of the modules involved in the device will be described below.
  • the receiving module 52 is configured to receive, by the neighboring base station, the information about the transmit power of the neighboring base station on the scheduling unit and the downlink interference strength information, where the downlink interference strength information is used to indicate that the neighboring base station is scheduled on the scheduling unit Whether the user is interfered by the base station, for example, the scheduling unit is one or more resource blocks RB; the adjusting module 54 is connected to the receiving module 52, and is configured to receive information about the transmit power of the neighboring base station and the downlink interference according to the received The strength information is adjusted for the scheduling unit used by the base station and/or the transmit power on the scheduling unit used.
  • the receiving module 52 is configured to receive, by using indication signaling (for example, the indication signaling is narrowband transmit power signaling), information about the transmit power of the neighboring base station sent by the neighboring base station on different scheduling units, and the downlink interference strength information. Or receiving, by using the scheduling signaling, information about the transmit power of the neighboring base station sent by the neighboring base station on different scheduling units and the downlink interference strength information.
  • the receiving module 52 includes a first receiving module 522 and a second receiving module 524. 6 is a structural block diagram of a receiving module in a scheduling apparatus according to an embodiment of the present invention. As shown in FIG.
  • the first receiving module 522 is configured to receive the narrowband transmit power signaling sent by the neighboring base station, where the narrowband transmit power signaling carries information about the transmit power of the neighboring base station on different scheduling units;
  • the second receiving module 524 is connected to the first receiving module 522, and is configured to receive the downlink interference strength indication signaling sent by the neighboring base station, where the downlink interference strength indication signaling carries the downlink interference strength information, and the foregoing information Let the base station and the above neighboring base stations be pre-approved. The following description is based on the preferred embodiments, which are combined with the above-described embodiments and preferred embodiments.
  • the preferred embodiment provides a downlink interference strength indication signaling (the signaling carries the downlink interference strength information, that is, the signaling that carries the downlink interference strength information in the preferred embodiment may be referred to as the downlink interference strength.
  • the signaling may be implemented by improving existing signaling, or may add a dedicated signaling.
  • the transmitting and receiving methods are effective by the preferred embodiment. The interference intensity between cells is suppressed, and the resource utilization rate is increased. The method provided in the preferred embodiment will now be described.
  • the first base station sends the downlink interference strength indication information to the second base station, where the first base station is an access node in the wireless network, and may be a macro base station, a micro base station, a home base station, a relay, or the like, and may directly or indirectly provide the terminal.
  • the device providing the service; the second base station is an access node adjacent to the first base station; the downlink interference strength indication information includes at least one downlink interference strength indication information of one or more scheduling units.
  • the scheduling unit may be one or more RBs available to the first base station, and the downlink interference strength indication information of the scheduling unit may be described by N bits (N is a positive integer greater than or equal to 1).
  • the mapping relationship between the downlink interference strength indication information and the downlink interference strength is configured by a standard default; wherein the downlink interference strength indication information may be sent by the first base station to the second base station by using dedicated signaling;
  • the sending manner may be periodic transmission or signaling to the first base station by the upper layer network unit; if periodic transmission is selected, the above period may be configured by a standard default.
  • the downlink interference strength indication information may also be sent by the first base station to the second base station by using other signaling, for example, the other signaling may be signaling for transmitting RNTP information, where the first base station according to the foregoing
  • the determined mapping rule sends the RNTP information, and the second base station obtains the downlink interference strength indication information according to the predetermined mapping rule; the predetermined mapping rule may be jointly determined by the first base station and the second base station, or may be determined by the standard. default allocation.
  • the second base station receives the downlink interference strength indication information sent by the first base station, and further obtains a downlink interference strength value of the first base station on the scheduling unit, where the higher the downlink interference strength value indicates that the first base station is scheduled on the scheduling unit.
  • the base station that adjusts the transmission power of the resource scheduling unit or the scheduling unit in the related art is separately determined by the method for transmitting and receiving the downlink interference strength indication signaling, and the adjustment is performed only if the adjustment needs to be performed, The relevant processing needs to be adjusted, and such processing can effectively suppress the interference intensity between cells, increase the resource utilization rate, and save resources.
  • 7 is a schematic diagram of a topology of a wireless communication system in accordance with a preferred embodiment of the present invention, and two preferred embodiments are described below in conjunction with FIG.
  • the neighboring base stations of BS1 are BS2 and BS3, and the downlink available resources of BS1 are 50 RBs (RB1, RB2, ..., RB50).
  • the serving base station of the MSI is BS1 and the strong interference source is BS3, the serving base station of MS2 is BS2 and there is no strong interference source, the serving base station of MS3 is BS3 and the strong interference source is BS1.
  • the BS1 completes the allocation of user resources in the cell, and allocates resources of RB1 to MS1.
  • the MS1 is a cell edge user, and the BS1 is required to use a high-power carrier to transmit data.
  • BS1 sends RNTP signaling to BS2 and BS3 to indicate the level of carrier transmit power on each RB.
  • 0 indicates that the transmission power of the RB is low
  • 1 indicates that the transmission power of the RB is high.
  • BS2 and BS3 receive the RNTP signaling sent by BS1, and learn the RNTP value "100...00" of each RB through decoding, and then know that BS1 will use high power to transmit data on RB1;
  • FIG. 8 is a schematic diagram of a downlink interference strength indication signaling format according to a preferred embodiment of the present invention, where "0" means that the user scheduled by BS1 on RB1 is not subject to The interference of BS2, "1" means that the user scheduled by BS1 on RB1 will be interfered by BS2;
  • FIG. 9 is a schematic diagram of another downlink interference strength indication signaling format according to a preferred embodiment of the present invention, where "0" means that the user scheduled by BS1 on RB1 is not subject to BS3.
  • Interference means that users scheduled by BS1 on RB1 will be interfered by BS3; BS2 and BS3 complete the scheduling of the user of the cell according to the received RNTP and downlink interference strength indication signaling sent by BS1: BS2 determines that RNTP information sent by BS1 is not required to be considered on the RBI according to the received RNTP and DL_StrInter£2 sent by BS1 ( RB1's high-power indication information), that is, there is no need to reduce the transmission power of the RB1 of the local cell or the resource of the RB1 in order to avoid the interference; the BS3 determines that the RNTP to be transmitted by the BS1 needs to be considered on the RB1 according to the received RNTP and DL_StrInterG sent by the BS1.
  • the neighboring base stations of BS1 are BS2 and BS3, and the downlink available resources of BS1 are 50 RBs (RB1, RB2, ..., RB50).
  • the serving base station of the MSI is BS1 and the strong interference source is BS3, the serving base station of MS2 is BS2 and there is no strong interference source, the serving base station of MS3 is BS3 and the strong interference source is BS1.
  • the BS1 completes the allocation of user resources in the cell, and allocates resources of RB1 to MS1.
  • the MS1 is a cell edge user, and the BS1 is required to use a high-power carrier to transmit data.
  • a transmission rule and a receiving method of the RNTP are defined in advance between the BS1, the BS2, and the BS3.
  • the BS1 sends the RNTP signaling to the BS2 and the BS3 twice.
  • the first RNTP signaling is used to indicate the RB of the local base station.
  • the carrier transmit power level.
  • "0" indicates that the transmission power of the RB is low
  • "1" indicates that the transmission power of the RB is high.
  • it is assumed that only the high power transmission is adopted on the RB1, and the format of the RNTP signaling is "100...00"; wherein the second RNTP signaling is the BS1 to the BS2 and the BS3 by means of the RNTP signaling.
  • BS1 sends downlink interference strength indication information DL_StrInter£2 to BS2 by means of RNTP signaling, because BS1 adopts high power transmission on RB1, but since the strong interference source of user MS1 allocated by BS1 on RB1 does not include BS2, BS2 can The impact on MS1 interference is not considered on the RBI.
  • the format of DL_StrInter£2 is as shown in FIG. 8, where "0" means that the user scheduled by BS1 on RB1 is not interfered by BS2, and "1" means that the user scheduled by BS1 on RB1 is interfered by BS2.
  • BS1 sends downlink interference strength indication information DL_StrInterG to BS3 by means of RNTP signaling.
  • the format of the DL_StrInterG is as shown in Figure 9, where "0" means that the user scheduled by BS1 on RB1 is not interfered by BS3, and "1" means that the user scheduled by BS1 on RB1 is interfered by BS3;
  • BS2 and BS3 receive the first RNTP signaling sent by BS1, and learn the RNTP value "100...00" of each RB by decoding, and then know that BS1 will use high power to transmit data on RB1;
  • the BS2 and the BS3 obtain the downlink interference strength indication information according to the second RNTP signaling sent by the BS1.
  • BS2 determines that RNTP information (high-power indication information of RB1) sent by BS1 does not need to be considered on RB1 according to RNTP and DL_StrInter£2 sent by BS1, that is, there is no need to reduce the transmission power of RB1 of the local cell or not to avoid interference.
  • Scheduling the resources of RB1; BS3 determines that RNTP information (high-power indication information of RB1) sent by BS1 needs to be considered on the RBI according to the received RNTP and DL StrlnterG sent by BS1, and BS3 needs to avoid interference when scheduling users on RB1.
  • the resource of the RB1 of the local cell is reduced or the resource of the RB1 is not scheduled.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device so that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any particular combination of hardware and software.
  • the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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Abstract

本发明公开了调度方法及装置，该方法应用于基站中，该基站执行的步骤包括：接收相邻基站发送的该相邻基站在调度单元上的发射功率的信息和下行干扰强度信息，其中，该下行干扰强度信息用于指示上述相邻基站在上述调度单元上调度的用户是否受到基站的干扰；根据接收到上述相邻基站的发射功率的信息和该下行干扰强度信息对基站所使用的调度单元和/或在所使用的调度单元上的发射功率进行调整，通过本发明，既能避免小区间的干扰又能节省资源。

Description

调度方法及装置 技术领域 本发明涉及通信领域， 具体而言， 涉及一种调度方法及装置。 背景技术 无线通信***中， 基站通过上下行链路与终端进行通信， 下行 （前向） 是指基站 到终端的方向， 上行 （反向） 是指终端到基站的方向。 多个终端可同时通过上行链路 向基站发送数据， 也可以通过下行链路同时从基站接收数据。 在正交频分复用 （Orthogonal Frequency Division Multiplexing, 简称为 OFDM)系 统中， 同一小区内基站与终端进行下行数据传输时， 这些终端的下行链路彼此是正交 的， 因此可以避免小区内干扰。 然而， 不同小区内终端的下行链路可以不是正交的， 因此每一个终端都可能受到来自其它相邻小区基站的下行干扰， 即小区间干扰。 降低 小区间干扰对***性能的影响是 OFDM***设计的一个重要目标，如果小区间的干扰 严重， 则会降低***容量， 特别是降低小区边缘用户的传输能力， 进而影响***的覆 盖能力以及终端的性能。 小区间干扰协调技术可以有效的降低小区间干扰强度， 即通过协调调度的方法合 理的为相邻小区分配调度资源， 避免为相邻小区的边缘用户分配相同的资源。 为了实 现小区间干扰协调技术， 必须在调度之前， 基站之间协调一些必要的调度信息。例如， 相关技术中基站会发送窄带发射功率 （Relative Narrowband Tx Power, 简称为 RNTP) 信令到相邻基站。 图 1是根据相关技术中的 RNTP信息格式的示意图， 如图 1所示， 将基站 1 (Base Station 1， 简称为 BSl ) 的可用资源可以划分为 N个资源块（Resource Block, 简称为 RB)， 索引号为 RB1、 RB2、 RB3、 ...RB(n-l) RBn, 针对每个 RB资 源， RNTP都有一个 bit信息与其对应， 其中， "0"表示该 RB的发送功率低， " 1 "表 示该 RB的发送功率高， 这样 RNTP信令的格式为 " 100...01 "， BS1将 RNTP信令发 送给相邻小区的基站， 例如 BS2和 BS3， 图 2是根据相关技术中的 RNTP信息发送方 式的示意图，如图 2所示，当 BS2和 BS3接收到 BS1发送的 RNTP后获知 BS1在 RB1 和 RBn上采用的是高功率发送数据， 为了避免对其造成干扰， 则 BS2和 BS3在 RB1 和 RBn上可以采用低功率发送数据或者不在该 RB上调度用户。 上述方案虽然可以避免小区间的高干扰， 但是这种方案是以降低资源的使用率为 代价的。 发明内容 本发明在于提供一种调度方法及装置， 以至少解决上述问题。 根据本发明的一方面， 提供了一种调度方法， 应用于基站中， 所述基站执行的步 骤包括： 接收相邻基站发送的所述相邻基站在调度单元上的发射功率的信息和下行干 扰强度信息， 其中， 所述下行干扰强度信息用于指示所述相邻基站在所述调度单元上 调度的用户是否受到所述基站的干扰； 根据接收到所述相邻基站的发射功率的信息和 所述下行干扰强度信息对所述基站所使用的调度单元和 /或在所使用的调度单元上的 发射功率进行调整。 通过以下方式至少之一接收所述相邻基站发送的所述发射功率的信息和下行干扰 强度信息： 接收所述相邻基站发送的指示信令， 其中， 所述指示信令承载有所述下行 干扰强度信息； 或者， 接收所述相邻基站发送的调度信令， 其中， 所述调度信令承载 有所述调度单元上的发射功率的信息和所述下行干扰强度信息。 接收所述相邻基站发送的所述调度信令包括： 接收所述相邻基站发送的窄带发射 功率信令， 其中， 所述窄带发射功率信令中携带有所述相邻基站在所述不同调度单元 上的发射功率的信息； 接收所述相邻基站发送的下行干扰强度指示信令， 其中， 所述 下行干扰强度指示信令中携带有所述下行干扰强度信息。 所述指示信令为窄带发射功率信令； 其中， 所述窄带发射功率信令用来承载所述 相邻基站在所述不同调度单元上的发射功率的信息。 所述相邻基站在预定时刻将所述下行干扰强度信息承载在窄带发射功率信令上， 由所述相邻基站发送到所述基站； 其中， 所述预定时刻由所述基站与所述相邻基站确 定或由标准默认配置。 所述调度单元为一个或多个资源块 RB。 根据本发明的另一方面， 提供了一种调度装置， 应用于基站中， 包括： 接收模块， 设置为接收相邻基站发送的所述相邻基站在调度单元上的发射功率的信息和下行干扰 强度信息， 其中， 所述下行干扰强度信息用于指示所述相邻基站在所述调度单元上调 度的用户是否受到所述基站的干扰； 调整模块， 设置为根据接收到所述相邻基站的发 射功率的信息和所述下行干扰强度信息对所述基站所使用的调度单元和 /或在所使用 的调度单元上的发射功率进行调整。 所述接收模块用于通过以下方式至少之一接收所述相邻基站发送的所述发射功率 的信息和下行干扰强度信息： 接收所述相邻基站发送的指示信令， 其中， 所述指示信 令承载有所述下行干扰强度信息； 或者， 接收所述相邻基站发送的调度信令， 其中， 所述调度信令承载有所述调度单元上的发射功率的信息和所述下行干扰强度信息。 在通过接收所述相邻基站发送的所述调度信令来接收所述相邻基站发送的所述发 射功率的信息和下行干扰强度信息的情况下， 所述接收模块包括： 第一接收模块， 设 置为接收所述相邻基站发送的窄带发射功率信令， 其中， 所述窄带发射功率信令中携 带有所述相邻基站在所述不同调度单元上的发射功率的信息； 第二接收模块， 设置为 接收所述相邻基站发送的下行干扰强度指示信令， 其中， 所述下行干扰强度指示信令 中携带有所述下行干扰强度信息，所述信令为所述基站和所述相邻基站预先约定好的。 所述指示信令为窄带发射功率信令。 通过本发明， 采用接收相邻基站发送的所述相邻基站在调度单元上的发射功率的 信息和下行干扰强度信息， 其中， 所述下行干扰强度信息用于指示所述相邻基站在所 述调度单元上调度的用户是否受到所述基站的干扰； 根据接收到所述相邻基站的发射 功率的信息和所述下行干扰强度信息对所述基站所使用的调度单元和 /或在所使用的 调度单元上的发射功率进行调整， 解决了为了避免小区间干扰而导致的浪费资源的问 题， 进而达到了节省资源的效果。 附图说明 此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部分， 本发 明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的不当限定。 在附图 中： 图 1是根据相关技术中的 RNTP信息格式的示意图； 图 2是根据相关技术中的 RNTP信息发送方式的示意图； 图 3是根据相关技术中的无线通信***拓扑结构的示意图； 图 4是根据本发明实施例的调度方法的流程图； 图 5是根据本发明实施例的调度装置的结构框图； 图 6是根据本发明实施例的调度装置中接收模块的结构框图; 图 7是根据本发明优选实施例的无线通信***拓扑结构的示意图; 图 8是根据本发明优选实施例的一个下行干扰强度指示信令格式的示意图； 图 9是根据本发明优选实施例的另一个下行干扰强度指示信令格式的示意图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是， 在不冲突的 情况下， 本申请中的实施例及实施例中的特征可以相互组合。 图 3是根据相关技术中的无线通信***拓扑结构的示意图， 如图 3所示， BS1向 BS2和 BS3 (BS1为 BS2和 BS3的相邻基站） 发送的其在资源调度单元 1 (例如， 该 调度单元可以为一个资源块 RB1 )的发射功率为高，如果使用 RNTP发送，则该 RNTP 上对于与该调度单元 1的比特位为 1， 表示 BS1要用高功率服务边缘用户移动终端 1 (Mobile Station 1 , 简称为 MSI ); BS2和 BS3为了避免对 BSl造成干扰， 不管 BS1 调度的用户 MS1是否真的会受到 BS2和 BS3的干扰， 在现有技术中， BS2和 BS3在 调度用户时均需要避免对 MS1的干扰， 而在实施时， MS1不一定受到 BS2和 BS3的 干扰， 例如， 图 3中 MS1只会受到 BS3的干扰， 而并不会受到 BS2的干扰， 但 BS2 在调度用户时也需要避免对 MS1 的干扰， 这样就会降低 BS2的资源的使用率， 造成 了资源的浪费。 在本实施例中提供了一种调度方法， 图 4是根据本发明实施例的调度方法的流程 图， 如图 4所示， 该方法应用于基站中， 该基站执行的步骤包括： 步骤 S402,接收相邻基站发送的该相邻基站在调度单元上的发射功率的信息和下 行干扰强度信息， 其中， 该下行干扰强度信息用于指示该相邻基站在该调度单元上调 度的用户是否受到该基站的干扰， 例如， 调度单元为一个或多个资源块 RB; 步骤 S404，根据接收到上述相邻基站的发射功率的信息和该下行干扰强度信息对 基站所使用的调度单元和 /或在所使用的调度单元上的发射功率进行调整。 通过以上步骤， 增加了下行干扰强度信息， 结合该信息和发射功率的信息进行调 整可以在一定程度上既避免基站小区间的干扰又使资源得到了合理的使用， 节省了资 源。 该下行干扰信息的发送方式有很多中， 无论哪种发送方式均不影响技术问题的解 决和技术效果的取得， 例如， 该基站通过接收所述相邻基站发送的指示信令， 其中， 该指示信令承载有上述下行干扰强度信息， 指示信令可以为本实施例中所列出的一些 其它信令， 只要承载该下行干扰信息即可； 又例如， 也可以通过接收相邻基站发送的 调度信令， 其中， 该调度信令承载有该调度单元上的发射功率的信息和下行干扰强度 信息， 即相邻基站发送的是一种专有信令， 专有信令可以根据要求对其格式进行预先 进行设定。 较优地， 在通过接收相邻基站发送的调度信令来接收所相邻基站发送的发射功率 的信息和下行干扰强度信息的情况下， 接收相邻基站发送的该调度信令包括： 接收相 邻基站发送的窄带发射功率信令， 其中， 该窄带发射功率信令中携带有相邻基站在不 同调度单元上的发射功率的信息； 接收相邻基站发送的下行干扰强度指示信令，其中， 下行干扰强度指示信令中携带有下行干扰强度信息。 该处理方式， 实现简单， 信令格 式清楚。 在实施时， 也可以把窄带发射功率信令作为指示信令， 该窄带发射功率信令用来 承载相邻基站的不同调度单元上的发射功率的信息， 此时， 指示信令借助窄带发射功 率信令携带下行干扰强度指示信息， 窄带发射功率信令本身还携带不同调度单元的发 射功率的信息， 因此， 直接通过窄带发射功率信令就可以实现避免小区间的干扰又能 节省资源。 当然， 相邻基站可以在预定时刻将该下行干扰强度信息承载在窄带发射功 率信令上， 其中， 预定时刻由基站与相邻基站确定或由标准默认配置。 无论是通过接收指示信令还是通过接收调度信令均可以采用现在的已有的信令， 或者， 也可以为了发送这两个信息而新增加一条或者两条消息。例如， 为了便于实现， 可以通过一条窄带发射功率信令来发送这两个信息， 或者也可以通过两条窄带发射功 率信令分别发送这两个信息， 或者通过一条窄带发射功率信令来发送这两个信息的其 中之一， 然后通过另外一条别的信令来发送这两个信息中的另一个。 在本实施例中提供一个较优的实施方式， 发送相邻基站在调度单元上的发射功率 的信息和该下行干扰强度信息的相邻基站将上述两种信息进行综合考虑， 例如， BS1 向 BS2发送的指示发射功率的信息和下行干扰强度信息可以由三种情况： 1. BS1 在 RB1上发射功率较强， 其对应的比特位表示为 1， BS2会带来干扰， 其对应的比特位 为 1 ; 2. BS1在 RB1上发射功率较强， 其对应的比特位表示为 1， BS2不会带来干扰 其对应的比特位为 0; 3. BS1在 RB1上的发射功率较弱， 其对应的比特位为 0， 在这 种情况下， 可以不用考虑是否 BS2会带来干扰。 这样对于这三种情况而言， 11 表示 BS2不在 RB1上调度用户或者在 RB1上发射功率较低， 10和 00均表示 BS2可以在 RB1上可以调度用户并使用较高发射功率， 由此可见， 10和 00指示的是一致的， 因 此， 可以使用 "0"来表示， 而对于 " 11 "可以使用 " 1 "来表示， 这样通过一个资源 调度单元只需要使用一个比特位来表示即可。 此时， 如果使用 RNTP来发送这两个信 息时，不需要对该 RNTP信令进行任何的改动，只不过向不同的相邻基站发送的 RNTP 信令的比特值可能不同， 这与现有技术中向所有相邻基站发送的 RNTP信令中均带一 样的比特值是不同。 获得上述下行干扰强度信息的方式可以有多种， 例如， 上述相邻基站发送的该下 行干扰强度信息可以来自于终端， 终端可以通过接收相邻基站以及基站的信号质量， 得出终端接收到除终端所属基站的其它基站带来的干扰强度信息， 然后通过上报的方 式告知相邻基站。 在本实施例中还提供了一种调度装置， 图 5是根据本发明实施例的调度装置的结 构框图， 如图 5所示， 该装置应用于基站中， 包括： 接收模块 52和调整模块 54， 该 装置用于实现上述实施例及优选实施方式， 已经进行过说明的不再赘述， 下面对该装 置中涉及到的模块进行说明。 接收模块 52， 设置为接收相邻基站发送的上述相邻基站在调度单元上的发射功率 的信息和下行干扰强度信息， 其中， 该下行干扰强度信息用于指示相邻基站在该调度 单元上调度的用户是否受到该基站的干扰， 例如， 调度单元为一个或多个资源块 RB; 调整模块 54，连接至接收模块 52， 设置为根据接收到上述相邻基站的发射功率的 信息和该下行干扰强度信息对基站所使用的调度单元和 /或在所使用的调度单元上的 发射功率进行调整。 接收模块 52设置为通过指示信令（例如， 该指示信令为窄带发射功率信令）接收 上述相邻基站发送的上述相邻基站在不同调度单元上的发射功率的信息和该下行干扰 强度信息； 或者， 通过调度信令接收上述相邻基站发送的上述相邻基站在不同调度单 元上的发射功率的信息和该下行干扰强度信息。 在通过接收相邻基站发送的调度信令来接收所相邻基站发送的发射功率的信息和 下行干扰强度信息的情况下， 该接收模块 52包括第一接收模块 522和第二接收模块 524， 图 6是根据本发明实施例的调度装置中接收模块的结构框图， 如图 6所示， 下面 对该接收模块 52涉及到的模块进行说明。 第一接收模块 522， 设置为接收上述相邻基站发送的窄带发射功率信令， 其中， 该窄带发射功率信令中携带有上述相邻基站在不同调度单元上的发射功率的信息； 第二接收模块 524，连接至第一接收模块 522， 设置为接收上述相邻基站发送的下 行干扰强度指示信令， 其中， 上述下行干扰强度指示信令中携带有该下行干扰强度信 息， 上述信令为基站和上述相邻基站预先约定好的。 下面结合优选实施例进行说明， 下述优选实施例结合了上述实施例及优选实施方 式。 本优选实施例提供了一种下行干扰强度指示信令 （该信令携带了下行干扰强度信 息， 即在本优选实施例中将携带了下行干扰强度信息的信令均可以称为是下行干扰强 度指示信令， 如上文所述， 该信令可以通过对现有的信令进行改进来实现， 也可以新 增一条专用的信令） 的发送与接收方法， 通过本优选实施例既能有效的抑制小区间的 干扰强度， 又能增加资源的使用率。 下面对本优选实施例中提供的方法进行说明。 第一基站向第二基站发送下行干扰强度指示信息， 其中， 第一基站为无线网络中 的一个接入节点， 可以是宏基站、 微基站、 家庭基站、 中继或其他可以直接或间接给 终端提供服务的设备； 第二基站为第一基站相邻的接入节点； 该下行干扰强度指示信 息至少包括一个或多个调度单元的下行干扰强度指示信息。 优选地，上述调度单元可以是第一基站可用的一个或多个 RB，该调度单元的下行 干扰强度指示信息可以采用 N个 bit描述 （N为大于等于 1的正整数）。 优选地， 该下行干扰强度指示信息和下行干扰强度的映射关系由标准默认配置； 其中， 该下行干扰强度指示信息可以通过专有信令由第一基站发送给第二基站； 该专 有信令的发送方式可以是周期发送或者由上层网络单元通过信令通知第一基站； 如果 选择的是周期发送， 则上述周期可以由标准默认配置。 优选地， 上述下行干扰强度指示信息也可以通过承载在其他信令上， 由第一基站 发送给第二基站， 例如， 其他信令可以是发送 RNTP信息的信令， 其中， 第一基站根 据预先确定的映射规则发送 RNTP信息， 并且第二基站根据预先确定的映射规则获得 下行干扰强度指示信息； 该预先确定的一种映射规则可以由第一基站与第二基站共同 预先确定， 也可以由标准默认配置。 第二基站接收第一基站发送的下行干扰强度指示信息， 进而获知第一基站在调度 单元上的下行干扰强度值， 其中， 该下行干扰强度值越高表示第一基站在上述调度单 元上调度的用户越容易受到第二基站的干扰； 上述下行干扰强度值越低表示第一基站 在上述调度单元上调度的用户越不容易受到第二基站的干扰。 通过上述的下行干扰强度指示信令的发送与接收方法， 对相关技术中需要进行统 一进行资源的调度单元或者调度单元上的发射功率进行调整的基站分别判断， 对需要 调整的才进行调整， 不需要调整的不进行相关的处理， 这样的处理既能有效的抑制小 区间的干扰强度， 又能增加资源的使用率， 节省了资源。 图 7是根据本发明优选实施例的无线通信***拓扑结构的示意图， 下面结合图 7 对两个优选实施例进行说明。 优选实施例一 在该优选实施例中， BS1 的相邻基站为 BS2和 BS3， 且 BS1 的下行可用资源为 50个 RB (RB1、 RB2、 ...、 RB50)。 MSI的服务基站为 BS1且强干扰源为 BS3， MS2 的服务基站为 BS2且没有强干扰源， MS3的服务基站为 BS3且强干扰源为 BS1。
BS1完成本小区用户资源的分配， 且将 RB1 的资源分配给 MS1。 其中， MS1为 一个小区边缘用户， 需要 BS1采用高功率的载波为其发送数据；
BS1向 BS2和 BS3发送 RNTP信令， 用来指示每个 RB上载波发射功率的高低。 其中， "0"表示该 RB的发送功率低， " 1 "表示该 RB的发送功率高。 在本优选实施 中， 假设只有 RB1上采用高功率发送， 则 RNTP信令的格式为 " 100...00";
BS2和 BS3接收到 BS1发送的 RNTP信令， 通过解码获知各个 RB的 RNTP值 " 100...00"， 进而获知 BS1将在 RB1上采用高功率发送数据；
BS1 向 BS2发送下行干扰强度指示信令 DL_StrInter£2， 由于 BS1在 RBI上采用 高功率发送， 但是由于 BS1在 RB1上分配的用户 MS1的强干扰源并不包括 BS2， 所 以 BS2可以在 RB1上不考虑对 MS1的干扰的影响。 则 DL_StrInter£2的格式如图 8所 示， 图 8是根据本发明优选实施例的一个下行干扰强度指示信令格式的示意图，其中， "0"是指 BS1在 RB1上调度的用户不会受到 BS2的干扰， " 1 "是指 BS1在 RB1上 调度的用户会受到 BS2的干扰；
BS1 向 BS3发送下行干扰强度指示信令 DL_StrInterG， 由于 BS1在 RBI上采用 高功率发送， 且 BS1在 RB1上分配的用户 MS1 的强干扰源包括 BS3， 所以 BS3在 RB1上调度用户时需要考虑对 MS1的干扰的影响。 则 DL_StrInterG的格式如图 9所 示， 图 9是根据本发明优选实施例的另一个下行干扰强度指示信令格式的示意图， 其 中， "0"是指 BS1在 RB1上调度的用户不会受到 BS3的干扰， " 1 "是指 BS1在 RB1 上调度的用户会受到 BS3的干扰； BS2和 BS3根据接收到 BS1发送的 RNTP和下行干扰强度指示信令完成本小区用 户的调度： BS2根据接收到 BS1发送的 RNTP和 DL_StrInter£2，确定在 RBI上不需要 考虑 BS1发送的 RNTP信息 （RB1的高功率指示信息）， 即不需要为了避免干扰而降 低本小区 RB1的发射功率或者不调度 RB1的资源; BS3根据接收到 BS1发送的 RNTP 和 DL_StrInterG， 确定在 RB1上需要考虑 BS1发送的 RNTP信息 （RB1的高功率指 示信息）， 则 BS3在 RB1上调度用户时， 需要为了避免干扰而降低本小区 RB1的发射 功率或者不调度 RB1的资源。 优选实施例二 在本优选实施例中， BS1 的相邻基站为 BS2和 BS3， 且 BS1 的下行可用资源为 50个 RB (RB1、 RB2、 ...、 RB50)。 MSI的服务基站为 BS1且强干扰源为 BS3， MS2 的服务基站为 BS2且没有强干扰源， MS3的服务基站为 BS3且强干扰源为 BS1。
BS1完成本小区用户资源的分配， 且将 RB1 的资源分配给 MS1。 其中， MS1为 一个小区边缘用户， 需要 BS1采用高功率的载波为其发送数据；
BS1、 BS2和 BS3之间预先定义一种 RNTP的发送规则和接收方法； BS1向 BS2和 BS3连续发送两次 RNTP信令； 其中，第一次的 RNTP信令用来指 示本基站每个 RB上载波发射功率的高低。 其中， "0"表示该 RB的发送功率低， " 1 " 表示该 RB的发送功率高。 在本优选实施例中， 假设只有 RB1上采用高功率发送， 则 RNTP信令的格式为 " 100...00"; 其中， 第二次的 RNTP信令是 BS1借助 RNTP信令 向 BS2、 BS3发送下行干扰强度指示信息。 BS1借助 RNTP信令向 BS2发送下行干扰 强度指示信息 DL_StrInter£2， 因为 BS1在 RB1上采用高功率发送， 但是由于 BS1在 RB1上分配的用户 MS1的强干扰源并不包括 BS2， 所以 BS2可以在 RBI上不考虑对 MS1的干扰的影响。则 DL_StrInter£2的格式如图 8所示， 其中， "0"是指 BS1在 RB1 上调度的用户不会受到 BS2的干扰， " 1 "是指 BS1在 RB1上调度的用户会受到 BS2 的干扰； BS1借助 RNTP信令向 BS3发送下行干扰强度指示信息 DL_StrInterG， 由于 BS1在 RB1上采用高功率发送， 且 BS1在 RB1上分配的用户 MS1 的强干扰源包括 BS3 ,所以 BS3在 RB1上调度用户时需要考虑对 MS1的干扰的影响。则 DL_StrInterG 的格式如图 9所示， 其中， "0"是指 BS1在 RB1上调度的用户不会受到 BS3的干扰， " 1 "是指 BS1在 RB1上调度的用户会受到 BS3的干扰；
BS2和 BS3接收 BS1发送的第一次 RNTP信令， 通过解码获知各个 RB的 RNTP 值 " 100...00"， 进而获知 BS1将在 RB1上采用高功率发送数据； BS2和 BS3根据接收到 BS1发送的第二次 RNTP信令，获知下行干扰强度指示信 息；
BS2根据接收到 BS1发送的 RNTP和 DL_StrInter£2， 确定在 RB1上不需要考虑 BS1发送的 RNTP信息 （RB1 的高功率指示信息）， 即不需要为了避免干扰而降低本 小区 RB1的发射功率或者不调度 RB1的资源； BS3根据接收到 BS1发送的 RNTP和 DL StrlnterG , 确定在 RBI上需要考虑 BS1发送的 RNTP信息（RB1的高功率指示信 息）， 则 BS3在 RB1上调度用户时， 需要为了避免干扰而降低本小区 RB1的发射功率 或者不调度 RB1的资源。 显然， 本领域的技术人员应该明白， 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布在多个计算装置所 组成的网络上， 可选地， 它们可以用计算装置可执行的程序代码来实现， 从而可以将 它们存储在存储装置中由计算装置来执行，或者将它们分别制作成各个集成电路模块， 或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样， 本发明不限 制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本领域的技 术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内， 所作的 任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种调度方法， 应用于基站中， 所述基站执行的步骤包括：
接收相邻基站发送的所述相邻基站在调度单元上的发射功率的信息和下行 干扰强度信息， 其中， 所述下行干扰强度信息用于指示所述相邻基站在所述调 度单元上调度的用户是否受到所述基站的干扰；
根据接收到所述相邻基站的发射功率的信息和所述下行干扰强度信息对所 述基站所使用的调度单元和 /或在所使用的调度单元上的发射功率进行调整。
2. 根据权利要求 1所述的方法， 其中， 通过以下方式至少之一接收所述相邻基站 发送的所述发射功率的信息和下行干扰强度信息：
接收所述相邻基站发送的指示信令， 其中， 所述指示信令承载有所述下行 干扰强度信息；
接收所述相邻基站发送的调度信令， 其中， 所述调度信令承载有所述调度 单元上的发射功率的信息和所述下行干扰强度信息。
3. 根据权利要求 2所述的方法， 其中， 接收所述相邻基站发送的所述调度信令包 括：
接收所述相邻基站发送的窄带发射功率信令， 其中， 所述窄带发射功率信 令中携带有所述相邻基站在所述不同调度单元上的发射功率的信息；
接收所述相邻基站发送的下行干扰强度指示信令， 其中， 所述下行干扰强 度指示信令中携带有所述下行干扰强度信息。
4. 根据权利要求 2所述的方法， 其中， 所述指示信令为窄带发射功率信令； 其中， 所述窄带发射功率信令用来承载所述相邻基站在所述不同调度单元上的发射功 率的信息。
5. 根据权利要求 4所述的方法， 其中， 所述相邻基站在预定时刻将所述下行干扰 强度信息承载在所述窄带发射功率信令上， 由所述相邻基站发送到所述基站； 其中， 所述预定时刻由所述基站与所述相邻基站确定或由标准默认配置。
6. 根据权利要求 1所述的方法， 其中， 所述调度单元为一个或多个资源块 RB。
7. 一种调度装置， 应用于基站中， 包括： 接收模块， 设置为接收相邻基站发送的所述相邻基站在调度单元上的发射 功率的信息和下行干扰强度信息， 其中， 所述下行干扰强度信息用于指示所述 相邻基站在所述调度单元上调度的用户是否受到所述基站的干扰；
调整模块， 设置为根据接收到所述相邻基站的发射功率的信息和所述下行 干扰强度信息对所述基站所使用的调度单元和 /或在所使用的调度单元上的发 射功率进行调整。 根据权利要求 7所述的装置， 其中， 所述接收模块用于通过以下方式至少之一 接收所述相邻基站发送的所述发射功率的信息和下行干扰强度信息：
接收所述相邻基站发送的指示信令， 其中， 所述指示信令承载有所述下行 干扰强度信息； 或者，
接收所述相邻基站发送的调度信令， 其中， 所述调度信令承载有所述调度 单元上的发射功率的信息和所述下行干扰强度信息。 根据权利要求 8所述的装置， 其中， 在通过接收所述相邻基站发送的所述调度 信令来接收所述相邻基站发送的所述发射功率的信息和下行干扰强度信息的情 况下， 所述接收模块包括：
第一接收模块，设置为接收所述相邻基站发送的窄带发射功率信令，其中， 所述窄带发射功率信令中携带有所述相邻基站在所述不同调度单元上的发射功 率的信息；
第二接收模块， 设置为接收所述相邻基站发送的下行干扰强度指示信令， 其中， 所述下行干扰强度指示信令中携带有所述下行干扰强度信息， 所述信令 为所述基站和所述相邻基站预先约定好的。 根据权利要求 8所述的装置， 其中， 所述指示信令为窄带发射功率信令。
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