WO2013078966A1 - 干扰管理的方法和装置 - Google Patents

干扰管理的方法和装置 Download PDF

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Publication number
WO2013078966A1
WO2013078966A1 PCT/CN2012/085216 CN2012085216W WO2013078966A1 WO 2013078966 A1 WO2013078966 A1 WO 2013078966A1 CN 2012085216 W CN2012085216 W CN 2012085216W WO 2013078966 A1 WO2013078966 A1 WO 2013078966A1
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Prior art keywords
information
serving cell
frequency resource
time
resource block
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PCT/CN2012/085216
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English (en)
French (fr)
Inventor
于映辉
熊新
周卫华
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP12854511.8A priority Critical patent/EP2775753B1/en
Publication of WO2013078966A1 publication Critical patent/WO2013078966A1/zh
Priority to US14/286,430 priority patent/US9426695B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]

Definitions

  • Embodiments of the present invention relate to the field of communication technologies, and, more particularly, to a method and apparatus for interference management.
  • BACKGROUND In the existing LTE (Long Term Evolution) technology, a static interference coordination method using partial frequency reuse (FFR, Fractional Frequency Reuse) and soft frequency reuse (SFR, Soft Frequency Reuse) is often implemented. Interference management.
  • FFR Fractional Frequency Reuse
  • SFR Soft Frequency Reuse
  • the typical delay of the E-UTRAN (Evolved Universal Terrestrial Radio Access) system on the direct connection port X2 between the eNB (Evolved Node B) and the eNB is 10 ⁇ 20.
  • the semi-static interference coordination method of ICIC inter-cell interference coordination
  • the ICIC technology mainly exchanges the load information of the cell between the base stations, coordinates the frequency resource allocation and the power level of the center and edge users to coordinate the interference, and improves the performance of the edge users.
  • ICIC is a distributed interference control scheme.
  • the current ICIC relies on the direct interface X2 port between the base stations.
  • LTE-Hi LTE-High Frequency Hotspot and indoor
  • APs Access Points
  • ICIC cannot be applied to LTE-Hi. . Therefore, ICIC cannot respond to communication systems where there is no interface between APs. use.
  • Embodiments of the present invention provide a method and apparatus for interference management, which can solve the problem of managing inter-site interference in the LTE-Hi technology.
  • a method for performing interference management including: reporting a scheduling parameter to a centralized control node, where the scheduling parameter includes information about a cell that interferes with a serving cell of a UE (User Equipment), and/or the The load information of the serving cell of the UE, where the information about the cell that interferes with the serving cell of the UE is generated by the measurement result of the UE reporting the neighboring cell reported by the UE; Scheduling control information determined according to the scheduling parameter; performing resource scheduling according to the scheduling control information.
  • the scheduling parameter includes information about a cell that interferes with a serving cell of a UE (User Equipment), and/or the The load information of the serving cell of the UE, where the information about the cell that interferes with the serving cell of the UE is generated by the measurement result of the UE reporting the neighboring cell reported by the UE; Scheduling control information determined according to the scheduling parameter; performing resource scheduling according to the scheduling control information.
  • a method for interference management including: receiving scheduling parameters reported by one or more APs, where the scheduling parameters include serving a serving cell of a UE served by each of the one or more APs Information of the interfered cell and/or load information of the serving cell of the UE, where the information of the cell that interferes with the serving cell of the UE is generated by the measurement result of the UE reporting the neighboring cell reported by the UE; Determining the scheduling control information based on the scheduling parameter; sending the scheduling control information to the one or more APs, so that the one or more APs perform resource scheduling according to the scheduling control information.
  • an apparatus for interference management including: a reporting unit, configured to report scheduling parameters to a centralized control node, where the scheduling parameter includes information about a cell that interferes with a serving cell of the UE, and/or the UE The load information of the serving cell, where the information about the cell that interferes with the serving cell of the UE is generated by the measurement result of the UE reporting the neighboring cell reported by the UE; the first receiving unit is configured to receive the The scheduling control information that is sent by the centralized control node according to the scheduling parameter reported by the reporting unit, and the scheduling unit, configured to perform resource scheduling according to the scheduling control information received by the first receiving unit.
  • an apparatus for interference management including: a second receiving unit, configured to receive scheduling parameters reported by one or more APs, where the scheduling parameter includes, for each AP of the one or more APs
  • the serving cell of the serving UE generates information of the interfered cell and/or load information of the serving cell of the UE, where the information of the cell that generates interference to the serving cell of the UE is used by the UE
  • the determining unit is configured to determine, according to the scheduling parameter received by the second receiving unit, the scheduling control information, and the sending unit, configured to determine the scheduling determined by the determining unit
  • the control information is sent to the one or more APs, so that the one or more APs perform resource scheduling according to the scheduling control information.
  • the method and the device for the interference management in the embodiment of the present invention can perform centralized interference control between APs according to different loads of different APs or different resource requirements of the cell edge in the case where there is no direct connection port between the APs, thereby achieving semi-static interference coordination. It should be understood that the method and the device for the interference management of the embodiment of the present invention are also applicable to other application scenarios in which the direct connection port X2 is not existed between the AP or the base station, and is not limited to the scenario of LTE-Hi. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below.
  • FIG. 1 is a flow chart of a method of interference management in accordance with one embodiment of the present invention.
  • FIG. 2 is a flow chart of a method of interference management in accordance with another embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an apparatus for interference management according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an apparatus for interference management according to another embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. . All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.
  • the centralized control node collects the load information and the neighboring area measurement information of the LTE-Hi AP served by the central control node, and according to the foregoing information, the centralized control node serves the serving cell of the LTE-Hi AP.
  • the centralized control node may be a network node other than an LTE-Hi GW (Gateway, Gateway), a macro base station, or other LTE-Hi AP. The following describes the LTE-Hi GW as an example.
  • LTE-Hi GW and LTE-Hi AP The method for interference management according to an embodiment of the present invention will be described below by taking LTE-Hi GW and LTE-Hi AP as an example in conjunction with FIG.
  • the serving LTE-Hi AP reports the scheduling parameter to the centralized control node, where the scheduling parameter includes information about the cell that interferes with the serving cell of the UE serving the LTE-Hi AP and/or the service LTE-Hi AP service.
  • the load information of the serving cell of the UE, where the information of the cell that interferes with the serving cell of the UE is generated by the measurement result of the UE reporting the neighboring cell reported by the UE.
  • the scheduling parameter does not include information of the cell that interferes with the serving cell of the UE serving the LTE-Hi AP service;
  • the LTE-Hi AP does not serve any UE, and the scheduling information does not include the load information of the serving cell of the UE serving the LTE-Hi AP service.
  • the scheduling parameter usually includes the service LTE-Hi AP service
  • the serving cell of the UE generates information of the interfered cell and the load information of the serving cell of the UE serving the LTE-Hi AP.
  • the information of the cell that interferes with the serving cell of the UE serving the LTE-Hi AP service includes spectrum information of the cell that interferes with the serving cell of the UE serving the LTE-Hi AP and serves the LTE-Hi AP service.
  • the serving cell of the UE generates identification information of the interfered cell.
  • the load information of the serving cell of the UE serving the LTE-Hi AP service includes spectrum information of the serving cell and time-frequency resource requirement information of the serving cell edge.
  • the spectrum information of the serving cell includes the bandwidth and frequency of the serving cell.
  • the time-frequency resource requirement information at the edge of the serving cell includes dedicated time-frequency resource block information required for serving the cell edge.
  • the dedicated time-frequency resource block information is, for example, a time-frequency resource block information of a GBR ( Guaranteed Bit Rate) service or a time-frequency resource block information of a non-GBR (non-Guaranteed Bit Rate) service. Or the time-frequency resource block information of the PBR (Prioritized Bit Rate) of the non-GBR service.
  • the UE reports the measurement result of the neighboring cell adjacent to the serving cell of the UE to the serving LTE-Hi AP, so that the serving LTE-Hi AP generates information about the cell that interferes with the serving cell of the UE according to the measurement result.
  • the measurement parameter is preferably configured as RSRQ (Reference Signal Receiving Quality).
  • the measurement parameters can also be configured as RSRP to reflect relative positional information between cells.
  • the scheduling parameter may further include user satisfaction feedback information of the interference time period and/or the serving cell edge.
  • the interference time period information can help the LTE-Hi GW generate scheduling control information.
  • the LTE-Hi GW may not allocate resources to the serving cell edge.
  • the user satisfaction feedback information at the edge of the serving cell may reflect whether the user at the cell edge of the serving cell is satisfied with the allocated resources.
  • the LTE-Hi AP can reduce the resource allocation for non-GBR services based on the resource requirements of the GBR service and the resource requirements of the non-GBR service PRB.
  • the LTE-Hi GW can increase the resources for the non-GBR service based on the resource requirements of the GBR service and the resource requirements of the non-GBR service. distribution. For example, consider some LTE-Hi APs that work in a period of time and dormancy for a period of time, so some services LTE-Hi AP will report its interference time period to the LTE-Hi GW.
  • the serving LTE-Hi AP may report the user satisfaction feedback information at the edge of the serving cell to the LTE-Hi GW, and the user satisfaction feedback information may be represented by means of a happy bit of the existing network.
  • the LTE-Hi AP receives the scheduling control information that is determined by the centralized control node and is determined according to the scheduling parameters.
  • the LTE-Hi GW will allocate the overlapping resources of the cell that interferes with the serving cell to the plurality of cells that interfere with the serving cell according to the information of the cell that generates interference to the serving cell of the UE serving the LTE-Hi AP service. Assign between.
  • the time-frequency resource requirement information of the cell edge of the serving cell of the UE serving the LTE-Hi AP service and the different resource requirements of the cell edge wherein the time-frequency resource requirement information reflects the demand for the time-frequency resource, and the resource requirement It reflects the QoS (Quality of Service) requirements of the resource, such as GBR services, or PBR or non-GBR services of non-GBR services.
  • the LTE-Hi GW needs to meet the resource requirements of the GBR service first, and then meet the resource requirements of the non-GBR service PBR. Finally, consider the resource requirements of non-GBR services.
  • the centralized control node determines the scheduling control information according to the received scheduling parameters.
  • the scheduling control information further includes time-frequency resource information allocated to the serving cell edge, for example, the time-frequency resource information allocated to the serving cell edge includes dedicated time-frequency resource block information allocated to the serving cell edge, and / or public time-frequency resource block information allocated to the edge of the serving cell.
  • the dedicated time-frequency resource block information is, for example, time-frequency resource block information of a GBR service, or time-frequency resource block information of a non-GBR service, or time-frequency resource block information of a priority bit rate PBR of a non-GBR service;
  • the time-frequency resource block is a time-frequency resource block for one or more APs to freely compete for use.
  • service LTE-Hi AP performs resource scheduling based on scheduling control information. After receiving the scheduling control information determined by the centralized control node, the LTE-Hi AP performs resource scheduling according to the received scheduling control information.
  • centralized interference control between the APs is performed according to different resources of the AP or different resource requirements of the cell edge to implement semi-static interference coordination.
  • the method of interference management according to another embodiment of the present invention is still described by taking LTE-Hi GW and LTE-Hi AP as an example.
  • the LTE-Hi GW receives scheduling parameters reported by one or more APs, where the scheduling parameters include information about a cell that interferes with a serving cell of a UE served by each AP and/or load information of a serving cell of the UE, where The information of the cell that interferes with the serving cell of the UE is generated by the measurement result that the UE reports the measurement of the neighboring cell by the UE. Similarly, the information of the cell that interferes with the serving cell of the UE includes the frequency information of the cell that interferes with the serving cell of the UE and the identification information of the cell that interferes with the serving cell of the UE.
  • the load information of the serving cell includes spectrum information of the serving cell and time-frequency resource requirement information of the serving cell edge.
  • the spectrum information of the serving cell includes the bandwidth and frequency of the serving cell.
  • the time-frequency resource requirement information at the edge of the serving cell includes service d, dedicated time-frequency resource block information required for the edge of the area.
  • the dedicated time-frequency resource block information required for serving the cell edge includes time-frequency resource block information of the GBR service required at the serving cell edge, or time-frequency resource block information of the non-GBR service, or the priority bit rate PBR of the non-GBR service. Time-frequency resource block information.
  • the scheduling parameter may further include an interference time period, or user satisfaction feedback information at the edge of the serving cell, or the closing information of the AP being turned off.
  • the closed LTE-Hi AP needs to report its shutdown information to the LTE-Hi GW, so that the LTE-Hi GW is used for interference management. This information is taken into account when determining the scheduling control information.
  • the LTE-Hi GW determines scheduling control information based on the foregoing scheduling parameters.
  • the scheduling control information includes allowed transmission power information and time-frequency resource information allocated to the serving cell edge.
  • the time-frequency resource information allocated to the serving cell edge includes dedicated time-frequency resource block information allocated to the serving cell edge, that is, time-frequency resource block information of the GBR service allocated to the serving cell edge, or time-frequency of the non-GBR service. Resource block information, or time-frequency resource block information of a priority bit rate PBR of a non-GBR service.
  • the LTE-Hi GW determines The scheduling control information includes time-frequency resource block information of the GBR service allocated to the serving cell edge and time-frequency resource block information of the non-GBR service. That is to say, the LTE-Hi GW first satisfies the requirements of the uplink and downlink GBR services, and allocates the remaining time-frequency resource blocks to the non-GBR services among the plurality of cells, while satisfying the GBR service requirements.
  • the dedicated time-frequency resource block information of the time-frequency resource requirement information of the serving cell edge in the scheduling parameter includes the time-frequency resource block information of the GBR service and the time-frequency resource block information of the priority bit rate PBR of the non-GBR service
  • the scheduling control information includes time-frequency resource block information of the GBR service allocated to the serving cell edge and time-frequency resource block information of the priority bit rate PBR of the non-GBR service, and common time-frequency resource block information.
  • the common time-frequency resource block is a time-frequency resource block for one or more APs to freely compete for use.
  • the LTE-Hi GW first satisfies the requirements of the priority bit rate PBR of the GBR service and the non-GBR service of the uplink and the downlink, and if the priority bit rate PBR of the GBR service and the non-GBR service is satisfied, The remaining time-frequency resource blocks are freely used by one or more APs served under them.
  • the LTE-Hi GW sends the foregoing scheduling control information to one or more APs, so that the one or more APs perform resource scheduling according to the scheduling control information.
  • the centralized control node performs the inter-AP according to different loads of the APs or different resource requirements of the cell edges. Centralized interference control for semi-static interference coordination.
  • the UE reports the measurement result of one or more cells adjacent to the serving cell of the UE to the serving LTE-Hi AP serving the UE, and the serving LTE-Hi AP generates according to the foregoing measurement result.
  • Information about a cell that interferes with the serving cell of the UE such as a list of interference related cells.
  • step 32 the serving LTE-Hi AP reports to the LTE-Hi GW the information of the cell generated in step 31 that interferes with the serving cell of the UE serving the LTE-Hi AP service to establish an interference database.
  • the serving LTE-Hi AP reports the interference time period or the experience of the serving cell edge user (e.g., the Happy bit mode) of the service to the LTE-Hi GW to the LTE-Hi GW.
  • the closed LTE-Hi AP should also report the shutdown information to the LTE-Hi GW to facilitate interference management of the LTE-Hi GW.
  • the serving LTE-Hi AP reports the load information of the serving cell of the UE serving the LTE-Hi AP service to the LTE-Hi GW. Specifically, the serving LTE-Hi AP reports the frequency information of the serving cell and the time-frequency resource requirement information of the serving cell edge to the LTE-Hi GW.
  • the serving LTE-Hi AP reports the system bandwidth and the working frequency of its working as the frequency information of the serving cell to the LTE-Hi GW.
  • the system bandwidth can be 40MHz, 80MHz or 160MHz.
  • a single carrier mode or a multi-carrier aggregation mode can be implemented in serving the LTE-Hi AP and the UE.
  • multi-carrier aggregation is used in serving LTE-Hi APs and UEs.
  • the interference management of the LTE-Hi GW starts with the primary carrier serving the LTE-Hi AP.
  • the frequency information and identification information in the neighbor cell information of the neighboring cell that interferes with the serving cell information can be seen in Table 1.
  • the serving cell information includes load information of the serving cell, for example, the load information of the serving cell includes spectrum information and identification information of the serving cell, the cell of the serving cell information, and X2 in the current LTE standard (eg, TS36.423).
  • the cells of the serving cell information of the port are the same.
  • the spectrum information of the serving cell includes FDD (Frequency Division Duplexing) uplink and downlink frequency, FDD uplink and downlink transmission bandwidth, TDD (Time Division Duplexing) frequency, TDD bandwidth and TDD subframe ratio.
  • the neighbor cell information includes spectrum information and identification information of the neighboring cell, for example, "ECGI” corresponds to the cell identification number of the neighboring cell, "PCI” corresponds to the air interface number of the neighboring cell, and "EARFCN” corresponds to the neighboring cell. frequency.
  • the serving LTE-Hi AP needs to report the load information of the AP on each carrier, in particular, the load information of the serving cell edge of the UE serving the LTE-Hi AP service to the LTE-Hi GW.
  • the load information of the serving cell of the UE serving the LTE-Hi AP service is the number of PRBs (Physical Resource Blocks) that the LTE-Hi AP needs to schedule at the serving cell edge.
  • the PRB is a time-frequency resource block, for example, 12 subcarriers * 1 time-frequency resource block of TTI (Transmission Time Interval) (millisecond ms).
  • the LTE-Hi GW performs scheduling allocation for all the time-frequency resource blocks in which the cells that interfere with the serving cell overlap
  • the content of the report 2 on the LTE-Hi AP is served.
  • Table 2 serves the resource requirements reported by the LTE-Hi AP to the LTE-Hi GW.
  • Table 3 serves the resource requirements of the LTE-Hi AP reported to the LTE-Hi GW.
  • DL GBR PRB usage represents the PRB demand of the GBR service in the downlink
  • UL GBR PRB usage represents the PRB demand of the GBR service in the uplink
  • DL non-GBR PRB usage represents The PRB demand for non-GBR services in the downlink
  • UL non-GBR PRB usage represents the PRB demand for non-GBR services in the uplink
  • DL Total PRB usage represents the total PRB demand in the downlink.
  • UL Total PRB usage represents the total PRB demand in the uplink.
  • the serving LTE-Hi AP reports the number of PRBs required for the GBR service and the non-GBR service at the edge of the serving cell to the LTE-Hi GW, and the LTE-Hi GW receives multiple LTE services under its service. After the above information reported by the Hi AP, the scheduling method 1 is further determined.
  • the content reported by the service LTE-Hi AP is the content of Table 3.
  • DL GBR PRB usage represents the PRB demand of the GBR service in the downlink
  • UL GBR PRB usage represents the PRB demand of the GBR service in the uplink
  • DL non-GBR PBR PRB usage
  • PRB usage represents the PRB demand of the PBR of the non-GBR service in the downlink
  • UL non-GBR PBR PRB usage represents the PRB demand of the PBR of the non-GBR service in the uplink
  • DL Total PRB usage represents the downlink.
  • the total PRB demand in the link represents the total PRB demand in the uplink.
  • DL GBR PRB is INTEGER (0 . max max PRB is LTE-Hi usage PRB) GW can be all months
  • UL GBR PRB is INTEGER (0 . max community provides PRB
  • DL non-GBR PBR is INTEGER (0 . max PBR (priority bit rate)
  • the LTE-Hi AP reports the number of PRB requirements required for the GBR service at the cell edge of the serving cell and the PBR of the non-GBR service to the LTE-Hi GW, and the LTE-Hi GW receives the service under it.
  • the scheduling method 2 is further determined. Therefore, in step 34, the LTE-Hi GW determines the scheduling method 1 according to the time-frequency resource requirement information of the serving cell edge reported by the multiple serving LTE-Hi APs, as shown in Table 2, that is, the uplink is first satisfied. And the requirements of the downlink GBR service.
  • the remaining number of PRBs are allocated among the multiple serving cells to the non-GBR service.
  • resource multiplexing can also be considered, and control is performed on the power.
  • the resources that the LTE-Hi GW determines to deliver to the serving LTE-Hi AP are shown in Table 4.
  • the LTE-Hi GW determines the scheduling method 2, that is, the LTE-Hi GW for the GB service and the non-GBR service, according to the time-frequency resource requirement information of the serving cell edge reported by the multiple serving LTE-Hi APs as shown in Table 3.
  • the PBR performs scheduling of dedicated time-frequency resource block power multiplexing.
  • the resources that the LTE-Hi GW determines to be delivered to the serving LTE-Hi AP are as shown in Table 5.
  • Tables 4 and 5 below “DL GBR PRB usage” represents the PRB demand of the GBR service in the downlink, and “UL GBR PRB usage” represents the PRB demand of the GBR service in the uplink, “DL “non-GBR PBR PRB usage” represents the PRB demand of PBR for non-GBR services in the downlink, “UL non-GBR PBR PRB usage” represents the PRB demand of PBR for non-GBR services in the uplink, “DL common PRB Usage” represents a public PRB that can be contending in the downlink, and “UL common PRB usage” represents a public PRB that can be contending in the uplink.
  • Table 4 LTE-Hi GW determines the resources to be delivered to the serving LTE-Hi AP: dedicated time-frequency resource block scheduling
  • LTE-Hi GW determines the resources to be sent to the LTE-Hi AP: dedicated time-frequency resource block scheduling (power multiplexing) and common time-frequency resource block contention scheduling
  • DL GBR PRB Required BIT STRING 1 is the allocated resource, 0 usage (L.max PRB per is an unallocated resource
  • DL non-GBR PBR Optional BIT STRING 1 is the allocated resource, 0 usage (L.max PRB per is an unallocated resource
  • UL GBR PRB Required BIT STRING 1 is the allocated resource, 0 usage (L.max PRB per is an unallocated resource
  • DL non-GBR PBR Optional BIT STRING 1 is the allocated resource, 0 usage (L.max PRB per is an unallocated resource
  • UL common PRB optional BIT STRING 1 is the allocated resource, 0
  • DL common PRB optional BIT STRING 1 is the allocated resource, 0
  • the LTE-Hi GW sends the determined resources as shown in Table 4 or Table 5 to each serving LTE-Hi AP, and the LTE-Hi AP serves the load according to the edge of the serving cell and the user experience.
  • the resources at the edge of the serving cell are dynamically adjusted.
  • the adjusted resource indications are shown in Table 4 or Table 5.
  • the apparatus 40 for interference management includes a reporting unit 41, a first receiving unit 42, and a scheduling unit 43.
  • the reporting unit 41 is configured to report a scheduling parameter to the centralized control node, where the scheduling parameter includes information about a cell that interferes with a serving cell of the UE and/or load information of a serving cell of the UE, where the pair of UEs
  • the information of the cell in which the serving cell generates the interference is generated by the measurement result that the UE reports the measurement of the neighboring cell by the UE.
  • the first receiving unit 42 is configured to receive the
  • the scheduling unit 43 is configured to perform resource scheduling according to the scheduling control information received by the first receiving unit 42.
  • the apparatus 50 for interference management includes a second receiving unit 51, a determining unit 52, and a transmitting unit 53.
  • the second receiving unit 51 is configured to receive scheduling parameters reported by one or more APs, where the scheduling parameters include information about a cell that interferes with a serving cell of a UE served by each of the one or more APs. And the load information of the serving cell of the UE, where the information about the cell that interferes with the serving cell of the UE is generated by the measurement result of the UE reporting the neighboring cell reported by the UE.
  • the determining unit 52 is configured to determine scheduling control information based on the scheduling parameters received by the second receiving unit.
  • the sending unit 53 is configured to send the scheduling control information determined by the determining unit to the one or more APs, so that the one or more APs perform resource scheduling according to the scheduling control information.
  • the interference management device 40 may be an AP, such as a base station.
  • the interference management device 50 may be a centralized control node, such as an LTE-Hi GW, a macro base station, or other network node other than the LTE-Hi AP.
  • the information of the cell that interferes with the serving cell of the UE served by the interference management device 40 transmitted between the two includes the spectrum information and the identification information of the cell; the load of the serving cell
  • the information includes spectrum information of the serving cell and time-frequency resource requirement information of the serving cell edge;
  • the scheduling control information includes time-frequency resource information allocated to the serving cell edge.
  • the spectrum information of the serving cell includes the bandwidth and the frequency of the serving cell, and the time-frequency resource requirement information of the serving cell edge includes the service d, the dedicated time-frequency resource block information required by the area edge, and the time-frequency allocated to the edge of the serving cell.
  • the resource information includes dedicated time-frequency resource block information allocated to the serving cell edge.
  • the dedicated time-frequency resource block information includes time-frequency resource block information of the GBR service or time-frequency resource block information of the non-GBR service or time-frequency resource block information of the priority bit rate PBR of the non-GBR service.
  • the determining unit 52 of the interference management device 50 The scheduling control information is determined to include time-frequency resource block information of the GBR service allocated to the serving cell edge and time-frequency resource block information of the non-GBR service.
  • the interference management device 50 Determination The unit 52 determines that the scheduling control information includes time-frequency resource block information of the GBR service allocated to the serving cell edge and time-frequency resource block information of the priority bit rate PBR of the non-GBR service, and common time-frequency resource block information, where the common time-frequency resource block is used. It is a time-frequency resource block for one or more APs to use freely.
  • the scheduling control information may also include allowed transmission power information.
  • the scheduling parameter may further include an interference time period, user satisfaction feedback information at the edge of the serving cell, and the shutdown information of the AP being turned off.
  • the centralized control node performs centralized interference control between the APs according to different loads of the APs or different resource requirements of the cell edges. , to achieve semi-static interference coordination.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in various embodiments of the present invention may be integrated in one processing unit. It is also possible that each unit physically exists alone, or two or more units may be integrated in one unit.
  • the functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本发明实施例提供了一种干扰管理的方法和装置。其中,所述干扰管理的方法包括:向集中控制节点上报调度参数,所述调度参数包括对用户设备的服务小区产生干扰的小区的信息和/或所述用户设备的服务小区的负载信息,其中所述对用户设备的服务小区产生干扰的小区的信息由所述用户设备上报的所述用户设备对相邻小区进行测量的测量结果生成;接收所述集中控制节点下发的根据所述调度参数确定的调度控制信息;根据所述调度控制信息进行资源调度。本发明实施例的干扰管理的方法与装置可以在接入点间不存在直连接口的情况下,根据接入点的不同负载或者小区边缘的不同资源需求进行接入点间的集中干扰控制,实现半静态干扰协调。

Description

干扰管理的方法和装置
本申请要求了于 2011 年 11 月 29 日提交中国专利局, 申请号为 201110387429.7、发明名称为 "干扰管理的方法和装置"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 本发明实施例涉及通信技术领域, 并且更具体地, 涉及干扰管理的方法 与装置。 背景技术 在现有的 LTE ( Long Term Evolution, 长期演进)技术中, 常釆用部分 频率复用 ( FFR, Fractional Frequency Reuse )和软频率复用 ( SFR, Soft Frequency Reuse )的静态干扰协调方法实现干扰管理。 但是, 当系统内各小 区的负载随着时间的推进而剧烈变化时, 静态干扰协调方法显得很不灵活; 此外, 当小区边缘处于高负荷状态而小区中央处于低负荷状态时, 静态干扰 协调方法带来的小区边缘性能提高也很有限。 由于 E-UTRAN ( Evolved Universal Terrestrial Radio Access, 演进的通 用地面无线接入网) 系统在 eNB ( Evolved Node B, 演进型基站) 与 eNB之 间的直连接口 X2口上的典型时延是 10~20毫秒( ms ),因此釆用 ICIC( inter-cell interference coordination , 小区间干扰协调) 的半静态干扰协调方法来实现 干扰管理。 ICIC技术主要是在基站间交互小区的负载信息, 通过调整中心和 边缘用户的频率资源分配以及功率大小来协调干扰, 提高边缘用户的性能。
ICIC是一种分布式的干扰控制方案。 但是, 目前的 ICIC依赖于基站之间的直 连接口 X2口。 以 LTE-Hi ( LTE-High Frequency Hotspot and indoor, LTE-高频热点和 室内)为例, 由于 AP ( Access Point, 接入点)之间不支持 X2口, 因此 ICIC 无法应用于 LTE-Hi中。 因此对于 AP间没有接口相连的通信系统, ICIC无法应 用。 发明内容 本发明实施例提供一种干扰管理的方法与装置, 能够解决在 LTE-Hi技术 中管理站点间干扰的问题。
一方面, 提供了一种干扰管理的方法, 包括: 向集中控制节点上报调度 参数, 所述调度参数包括对 UE ( User Equipment, 用户设备)的服务小区产 生干扰的小区的信息和 /或所述 UE的服务小区的负载信息, 其中所述对 UE的 服务小区产生干扰的小区的信息由所述 UE上报的所述 UE对相邻小区进行测 量的测量结果生成; 接收所述集中控制节点下发的根据所述调度参数确定的 调度控制信息; 根据所述调度控制信息进行资源调度。 另一方面, 提供了一种干扰管理的方法, 包括: 接收一个或多个 AP上报 的调度参数, 所述调度参数包括对所述一个或多个 AP中每一个 AP服务的 UE 的服务小区产生干扰的小区的信息和 /或所述 UE的服务小区的负载信息,其中 对 UE的服务小区产生干扰的小区的信息由所述 UE上报的所述 UE对相邻小区 进行测量的测量结果生成; 基于所述调度参数确定调度控制信息; 将所述调 度控制信息下发至所述一个或多个 AP, 以便所述一个或多个 AP根据所述调度 控制信息进行资源调度。 又一方面, 提供了一种干扰管理的装置, 包括: 上报单元, 用于向集中 控制节点上报调度参数, 所述调度参数包括对 UE的服务小区产生干扰的小区 的信息和 /或所述 UE的服务小区的负载信息, 其中所述对 UE的服务小区产生 干扰的小区的信息由所述 UE上报的所述 UE对相邻小区进行测量的测量结果 生成; 第一接收单元, 用于接收所述集中控制节点下发的根据所述上报单元 上报的调度参数确定的调度控制信息; 调度单元, 用于根据所述第一接收单 元接收的调度控制信息进行资源调度。 再一方面, 提供了一种干扰管理的装置, 包括: 第二接收单元, 用于接 收一个或多个 AP上报的调度参数,所述调度参数包括对所述一个或多个 AP中 每一个 AP服务的 UE的服务小区产生干扰的小区的信息和 /或所述 UE的服务小 区的负载信息, 其中所述对 UE的服务小区产生干扰的小区的信息由所述 UE 上报的所述 UE对相邻小区进行测量的测量结果生成; 确定单元, 用于基于所 述第二接收单元接收的调度参数确定调度控制信息; 发送单元, 用于将所述 确定单元确定的调度控制信息下发至所述一个或多个 AP, 以便所述一个或多 个 AP根据所述调度控制信息进行资源调度。 本发明实施例的干扰管理的方法与装置可以在 AP间不存在直连接口的情 况下,根据 AP的不同负载或者小区边缘的不同资源需求进行 AP间的集中干扰 控制, 实现半静态干扰协调。 应理解, 本发明实施例的干扰管理的方法与装 置也适用于 AP或基站间不存在直连接口 X2口的其他应用场景,不限于 LTE-Hi 的场景。 附图说明 为了更清楚地说明本发明实施例的技术方案, 下面将对实施例或现有技 术描述中所需要使用的附图作简单地介绍, 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是根据本发明一个实施例的干扰管理的方法的流程图。
图 2是根据本发明另一实施例的干扰管理的方法的流程图。
图 4是根据本发明一个实施例的干扰管理的装置的结构示意图。
图 5是根据本发明另一实施例的干扰管理的装置的结构示意图。 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。
本发明实施例是由集中控制节点收集其下服务的 LTE-Hi AP的负载信息 和邻区测量信息等, 根据上述信息, 集中控制节点对 LTE-Hi AP的服务小区边 在本发明实施例中,集中控制节点可以是 LTE-Hi GW( Gateway, 网关)、 宏基站或其他的 LTE-Hi AP之外的网络节点。 以下以 LTE-Hi GW为例进行描 述。
下面结合图 1 , 以 LTE-Hi GW与 LTE-Hi AP为例描述根据本发明一个实施 例的干扰管理的方法。
1 1 ,服务 LTE-Hi AP向集中控制节点上报调度参数,该调度参数包括对该 服务 LTE-Hi AP服务的 UE的服务小区产生干扰的小区的信息和 /或该服务 LTE-Hi AP服务的 UE的服务小区的负载信息, 其中对 UE的服务小区产生干扰 的小区的信息由所述 UE上报的所述 UE对相邻小区进行测量的测量结果生成。
一般地, 如果服务 LTE-Hi AP服务的 UE的服务小区没有相邻的小区, 则 调度参数中不包括对该服务 LTE-Hi AP服务的 UE的服务小区产生干扰的小区 的信息; 如果该服务 LTE-Hi AP不服务任何 UE, 则该调度参数中不包括该服 务 LTE-Hi AP服务的 UE的服务小区的负载信息。 如果存在对服务 LTE-Hi AP 服务的 UE的服务小区产生干扰的小区, 而且该服务 LTE-Hi AP在 UE的服务小 区边缘有资源需求时, 该调度参数通常包括对该服务 LTE-Hi AP服务的 UE的 服务小区产生干扰的小区的信息和该服务 LTE-Hi AP服务的 UE的服务小区的 负载信息。
具体而言, 对服务 LTE-Hi AP服务的 UE的服务小区产生干扰的小区的信 息包括对服务 LTE-Hi AP服务的 UE的服务小区产生干扰的小区的频谱信息和 对服务 LTE-Hi AP服务的 UE的服务小区产生干扰的小区的标识信息。 服务 LTE-Hi AP服务的 UE的服务小区的负载信息包括服务小区的频谱信息和服务 小区边缘的时频资源需求信息。 例如, 服务小区的频谱信息包括服务小区的 带宽和频点。 例如, 服务小区边缘的时频资源需求信息包括服务小区边缘所 需的专用时频资源块信息。 其中, 该专用时频资源块信息例如为 GBR ( Guaranteed Bit Rate, 保证比特率) 业务的时频资源块信息或者非 GBR ( non-Guaranteed Bit Rate, 非保证比特率)业务的时频资源块信息或者非 GBR业务的优先比特率 PBR ( Prioritized Bit Rate, 优先比特率)的时频资源 块信息。 此外, UE向该服务 LTE-Hi AP上报与该 UE的服务小区相邻的相邻小区的 测量结果, 从而该服务 LTE-Hi AP根据该测量结果生成对 UE的服务小区产生 干扰的小区的信息。例如,为了反映出干扰的情况,测量参数优选配置为 RSRQ ( Reference Signal Receiving Quality, 参考信号接收质量)。 测量参数也可 以配置为 RSRP, 用来反映小区间的相对位置相关信息。
除了对 UE的服务小区产生干扰的小区的信息与 UE的服务小区的负载信 息, 调度参数还可以包括干扰时间段和 /或服务小区边缘的用户满意反馈信息 等。 例如, 干扰时间段信息可以帮助 LTE-Hi GW生成调度控制信息。 对于休 眠的 LTE-Hi AP, LTE-Hi GW可以不给其分配服务小区边缘的资源。 例如, 服 务小区边缘的用户满意反馈信息可以反映该服务小区的小区边缘的用户对于 分配的资源是否满意。 对于服务小区边缘的用户反馈的满意的服务 LTE-Hi AP, LTE-Hi GW可以在满足 GBR业务的资源需求和非 GBR业务 PRB的资源需 求的基础上, 减少对非 GBR业务的资源分配。 反之, 对于服务小区边缘的用 户反馈的不满意的 LTE-Hi AP, LTE-Hi GW可以在满足 GBR业务的资源需求 和非 GBR业务的 PRB的资源需求的基础上, 增加对非 GBR业务的资源分配。 例如, 考虑有的 LTE-Hi AP—段时间工作和一段时间休眠的情况, 因此有 些服务 LTE-Hi AP会将其干扰时间段上报给 LTE-Hi GW。 或者, 服务 LTE-Hi AP可以上报其服务小区边缘的用户满意反馈信息给 LTE-Hi GW, 该用户满意 反馈信息可以借鉴现有网络的满意比特(Happy bit ) 的方式来表示。
12,服务 LTE-Hi AP接收集中控制节点下发的根据调度参数确定的调度控 制信息。
LTE-Hi GW将会根据对服务 LTE-Hi AP服务的 UE的服务小区产生干扰的 小区的信息, 将上述对服务小区产生干扰的小区的重叠资源在多个所述对服 务小区产生干扰的小区间进行分配。
对于服务 LTE-Hi AP服务的 UE的服务小区的小区边缘的时频资源需求信 息和小区边缘的不同资源需求, 其中时频资源需求信息中反映的是对时频资 源的需求量,而资源需求反映的是资源的 QoS ( Quality of Service,服务质量) 要求,比如是 GBR业务,或者非 GBR业务的 PBR或者非 GBR业务。 LTE-Hi GW 需要先满足 GBR业务的资源需求, 然后满足非 GBR业务的 PBR的资源需求, 最后才考虑非 GBR业务的资源需求。 通常, 集中控制节点会根据接收到的调度参数确定调度控制信息。 通常, 除了允许的传输功率信息, 调度控制信息还包括分配给服务小区边缘的时频 资源信息, 例如分配给服务小区边缘的时频资源信息包括分配给服务小区边 缘的专用时频资源块信息和 /或分配给服务小区边缘的公共时频资源块信息。 其中,该专用时频资源块信息例如为 GBR业务的时频资源块信息、或者非 GBR 业务的时频资源块信息、 或者非 GBR业务的优先比特率 PBR的时频资源块信 息; 而该公共时频资源块是供一个或多个 AP自由竟争使用的时频资源块。
13, 服务 LTE-Hi AP根据调度控制信息进行资源调度。 服务 LTE-Hi AP在接收到集中控制节点确定的调度控制信息后,将根据接 收到的调度控制信息进行资源调度。
通过根据上述实施例的干扰管理的方法, 在 AP间不存在直连接口的情况 下,根据 AP的不同负载或者小区边缘的不同资源需求进行 AP间的集中干扰控 制, 实现半静态干扰协调。
下面再结合图 2, 仍以 LTE-Hi GW与 LTE-Hi AP为例描述根据本发明另一 实施例的干扰管理的方法。
21 , LTE-Hi GW接收一个或多个 AP上报的调度参数, 该调度参数包括对 每个 AP服务的 UE的服务小区产生干扰的小区的信息和 /或该 UE的服务小区的 负载信息, 其中对 UE的服务小区产生干扰的小区的信息由 UE上报的该 UE对 相邻小区进行测量的测量结果生成。 同样,对 UE的服务小区产生干扰的小区的信息包括对 UE的服务小区产生 干扰的小区的频语信息和对 UE的服务小区产生干扰的小区的标识信息。 服务 小区的负载信息包括服务小区的频谱信息和服务小区边缘的时频资源需求信 息。 例如, 服务小区的频谱信息包括服务小区的带宽和频点。 例如, 服务小 区边缘的时频资源需求信息包括服务 d、区边缘所需的专用时频资源块信息。 其中服务小区边缘所需的专用时频资源块信息包括服务小区边缘所需的 GBR 业务的时频资源块信息, 或者非 GBR业务的时频资源块信息, 或者非 GBR业 务的优先比特率 PBR的时频资源块信息。 此外, 调度参数还可以包括干扰时间段, 或者服务小区边缘的用户满意 反馈信息, 或者被关闭 AP的关闭信息。 具体地, 如果 LTE-Hi GW其下服务的 某个 LTE-Hi AP关闭, 则该关闭的 LTE-Hi AP需要将其关闭信息上报给 LTE-Hi GW, 以利于 LTE-Hi GW为干扰管理而确定调度控制信息时考虑该信息。
22, LTE-Hi GW基于上述调度参数确定调度控制信息。 其中, 调度控制信息包括允许的传输功率信息和分配给服务小区边缘的 时频资源信息。 其中, 该分配给服务小区边缘的时频资源信息包括分配给服 务小区边缘的专用时频资源块信息, 即分配给服务小区边缘的 GBR业务的时 频资源块信息、 或者非 GBR业务的时频资源块信息、 或者非 GBR业务的优先 比特率 PBR的时频资源块信息。 具体而言, 若调度参数中服务小区边缘的时频资源需求信息的专用时频 资源块信息包括 GBR业务的时频资源块信息和非 GBR业务的时频资源块信 息, 则 LTE-Hi GW确定调度控制信息包括分配给服务小区边缘的 GBR业务的 时频资源块信息和非 GBR业务的时频资源块信息。 也就是说, LTE-Hi GW首 先满足上行链路和下行链路的 GBR业务的需求, 在满足 GBR业务需要的情况 下, 再在多个小区间分配剩余的时频资源块给非 GBR业务。 若调度参数中服务小区边缘的时频资源需求信息的专用时频资源块信息 包括 GBR业务的时频资源块信息和非 GBR业务的优先比特率 PBR的时频资源 块信息, 则 LTE-Hi GW确定调度控制信息包括分配给服务小区边缘的 GBR业 务的时频资源块信息和非 GBR业务的优先比特率 PBR的时频资源块信息, 以 及公共时频资源块信息。 其中, 公共时频资源块是供一个或多个 AP自由竟争 使用的时频资源块。 也就是说, LTE-Hi GW首先满足上行链路和下行链路的 GBR业务和非 GBR业务的优先比特率 PBR的需求,在满足 GBR业务和非 GBR 业务的优先比特率 PBR需要的情况下, 剩余的时频资源块由其下服务的一个 或多个 AP自由竟争使用。
23, LTE-Hi GW将上述调度控制信息下发至一个或多个 AP, 以便该一个 或多个 AP根据上述调度控制信息进行资源调度。 通过根据上述实施例的干扰管理的方法, 在 AP间不存在直连接口的情况 下,集中控制节点根据 AP的不同负载或者小区边缘的不同资源需求进行 AP间 的集中干扰控制, 实现半静态干扰协调。
以下将结合图 3的流程图具体描述根据本发明实施例的干扰管理的方法。 在图 3的步骤 31中, UE上报一个或多个与该 UE的服务小区相邻的小区的 测量结果到服务于该 UE的服务 LTE-Hi AP,该服务 LTE-Hi AP根据上述测量结 果生成对该 UE的服务小区产生干扰的小区的信息, 例如一个干扰相关小区列 表。
然后, 在步骤 32中, 服务 LTE-Hi AP向 LTE-Hi GW报告在步骤 31中生成 的对该服务 LTE-Hi AP服务的 UE的服务小区产生干扰的小区的信息以建立干 扰数据库。
此外,可选的,服务 LTE-Hi AP向 LTE-Hi GW报告干扰时间段或其服务的 服务小区边缘用户的感受 (例如 Happy bit的方式)到 LTE-Hi GW。
当除服务 LTE-Hi AP外的其他 LTE-Hi AP被关闭, 被关闭的 LTE-Hi AP也 应该将该关闭信息上报给 LTE-Hi GW, 以利于 LTE-Hi GW的干扰管理。
在步骤 33中,服务 LTE-Hi AP向 LTE-Hi GW报告该服务 LTE-Hi AP服务的 UE的服务小区的负载信息。 具体而言, 服务 LTE-Hi AP向 LTE-Hi GW报告上 述服务小区的频语信息以及服务小区边缘的时频资源需求信息。
例如,服务 LTE-Hi AP将其工作的系统带宽和工作频点作为服务小区的频 语信息上报给 LTE-Hi GW。在 LTE-Hi GW的场景下, 系统带宽可以为 40MHz、 80MHz或 160MHz。当系统带宽为 40MHz及其以下的情况,在服务 LTE-Hi AP 和 UE中可以实现单载波方式或多载波聚合方式。 对于 40MHz以上的系统带 宽, 在服务 LTE-Hi AP和 UE中都是釆用多载波聚合方式。 LTE-Hi GW的干扰 管理先从服务 LTE-Hi AP的主载波开始。
服务小区信息与对该服务小区产生干扰的相邻小区的相邻小区信息中的 频语信息及标识信息可参见表 1。
表 1 相邻小区信息以及服务小区信息
Figure imgf000011_0001
在表 1中, 服务小区信息包括服务小区的负载信息, 例如服务小区的负载 信息包括服务小区的频谱信息和标识信息, 服务小区信息的信元和当前 LTE 标准(如, TS36.423 ) 中 X2口的服务小区信息的信元相同。 服务小区的频谱 信息包括 FDD ( Frequency Division Duplexing, 频分双工 )上下行频点、 FDD 上下行传输带宽, TDD ( Time Division Duplexing , 时分双工)频点、 TDD 带宽及 TDD子帧配比。 相邻小区信息包括相邻小区的频谱信息和标识信息, 例如 "ECGI" 对应于相邻小区的小区识别号, "PCI" 对应于相邻小区的空 口号, "EARFCN" 对应于相邻小区的频率。 此外, 服务 LTE-Hi AP需要上报该 AP在每个载波上的负载信息, 特别是 该服务 LTE-Hi AP服务的 UE的服务小区边缘的负载信息到 LTE-Hi GW。 服务 LTE-Hi AP服务的 UE的服务小区的负载信息为服务 LTE-Hi AP在服务小区边 缘需要进行调度的 PRB ( Physical Resource Block, 物理资源块) 的个数。 该 PRB是一种时频资源块, 例如 12个子载波 *1个 TTI ( Transmission Time Interval , 传输时间间隔) (毫秒 ms ) 的时频资源块。
对于 LTE-Hi GW对全部对服务小区产生干扰的小区重叠的时频资源块进 行调度分配的情况, 服务 LTE-Hi AP上报表 2的内容。 表 2服务 LTE-Hi AP上报给 LTE-Hi GW的资源需求一 表 3服务 LTE-Hi AP上报给 LTE-Hi GW的资源需求二
Figure imgf000012_0001
在表 2中, "DL GBR PRB usage"代表下行链路中 GBR业务的 PRB需求 量, "UL GBR PRB usage" 代表上行链路中 GBR业务的 PRB需求量, "DL non-GBR PRB usage" 代表下行链路中非 GBR业务的 PRB需求量, "UL non-GBR PRB usage" 代表上行链路中非 GBR业务的 PRB需求量, "DL Total PRB usage" 代表下行链路中全部的 PRB需求量, "UL Total PRB usage" 代表上行链路中全部的 PRB需求量。
由表 2可知,服务 LTE-Hi AP将服务小区边缘的 GBR业务与非 GBR业务所 需的 PRB个数信息上报给 LTE-Hi GW, LTE-Hi GW在接收到其下服务的多个 LTE-Hi AP上报的上述信息后, 再进一步确定调度方法 1。
而对于 LTE-Hi GW只对 GBR业务和 /或非 GBR业务中的 PBR需求量进行 调度分配的情况, 服务 LTE-Hi AP上报的内容为表 3的内容。
具体地, 在表 3中, "DL GBR PRB usage"代表下行链路中 GBR业务的 PRB需求量, "UL GBR PRB usage" 代表上行链路中 GBR业务的 PRB需求 量, "DL non-GBR PBR PRB usage"代表下行链路中非 GBR业务的 PBR的 PRB需求量, "UL non-GBR PBR PRB usage"代表上行链路中非 GBR业务 的 PBR 的 PRB需求量, "DL Total PRB usage"代表下行链路中全部的 PRB 需求量, "UL Total PRB usage" 代表上行链路中全部的 PRB需求量。
表 3 服务 LTE-Hi AP上报给 LTE-Hi GW的资源需求二 信元 是否存在 范围 信元类型和参考 语义描述
DL GBR PRB 是 INTEGER (0 . max max PRB为 LTE-Hi usage PRB) GW可以为全部月艮
UL GBR PRB 是 INTEGER (0 . max 务小区提供 PRB个
usage PRB)
DL non-GBR PBR 是 INTEGER (0 . max PBR (优先比特率)
PRB usage PRB)
UL non-GBR PBR 是 INTEGER (0 . max
PRB usage PRB)
DL Total PRB 是 INTEGER (0 . max
usage PRB)
UL Total PRB 是 INTEGER (0 . max
usage PRB)
由表 3可知,服务 LTE-Hi AP将其服务小区边缘的 GBR业务和非 GBR业务 的 PBR所需的 PRB需求个数信息上报给 LTE-Hi GW, LTE-Hi GW在接收到其 下服务的多个 LTE-Hi AP上报的上述信息后, 再进一步确定调度方法 2。 由此可见, 在步骤 34中, 根据多个服务 LTE-Hi AP上报的如表 2所示的服 务小区边缘的时频资源需求信息, LTE-Hi GW确定调度方法 1 , 即首先满足上 行链路和下行链路的 GBR业务的需求。 在满足 GBR业务的需要情况下, 再在 多个服务小区间分配剩余的 PRB个数给非 GBR业务。 同时, 对于分配的资源, 也可以考虑资源复用,在功率上进行控制。 LTE-Hi GW确定下发给服务 LTE-Hi AP的资源如表 4所示。 或者, 根据多个服务 LTE-Hi AP上报的如表 3所示的服务小区边缘的时频 资源需求信息, LTE-Hi GW确定调度方法 2,即 LTE-Hi GW对 GB业务和非 GBR 业务的 PBR进行专用时频资源块功率复用的调度。 对于剩余的资源, 由各个 服务 LTE-Hi AP进行自由竟争。 这种情况下, LTE-Hi GW确定下发给服务 LTE-Hi AP的资源如表 5所示。 具体地, 在以下表 4和表 5中, "DL GBR PRB usage" 代表下行链路中 GBR业务的 PRB需求量, "UL GBR PRB usage" 代表上行链路中 GBR业务 的 PRB需求量, "DL non-GBR PBR PRB usage"代表下行链路中非 GBR业 务的 PBR的 PRB需求量, "UL non-GBR PBR PRB usage" 代表上行链路中 非 GBR业务的 PBR 的 PRB需求量, "DL common PRB usage" 代表下行链 路中可被竟争的公共的 PRB, "UL common PRB usage"代表上行链路中可 被竟争的公共的 PRB。 表 4 LTE-Hi GW确定下发给服务 LTE-Hi AP的资源: 专用时频资源块调度 (功率复用)
Figure imgf000014_0001
表 5 LTE-Hi GW确定下发给 LTE-Hi AP的资源: 专用时频资源块调度 (功率复用)及公共 时频资源块竟争调度
信元 是否存在 范围 信元类型和参考 语义描述 小区标识 ECGI/PCI
DL GBR PRB 必选 BIT STRING 1是分配的资源, 0 usage (L.max PRB per 是未分配的资源
cell, ...)
DL non-GBR PBR 可选 BIT STRING 1是分配的资源, 0 usage (L.max PRB per 是未分配的资源
cell, ...)
允许的传输功率 可选 (....max allowed
Tx power)
UL GBR PRB 必选 BIT STRING 1是分配的资源, 0 usage (L.max PRB per 是未分配的资源
cell, ...)
DL non-GBR PBR 可选 BIT STRING 1是分配的资源, 0 usage (L.max PRB per 是未分配的资源
cell, ...)
允许的传输功率 可选 (...max allowed Tx
power)
UL common PRB 可选 BIT STRING 1 是分配的资源, 0
(L.max PRB per 是未分配的资源
cell, ...)
DL common PRB 可选 BIT STRING 1 是分配的资源, 0
(L.max PRB per 是未分配的资源
cell, ...)
最后, 在步骤 35中, LTE-Hi GW将所确定的如表 4或表 5的资源下发给各 个服务 LTE-Hi AP, 服务 LTE-Hi AP再根据其服务小区边缘的负载及用户感受 对服务小区边缘的资源进行动态调整。 调整后的资源指示如表 4或表 5。 由上可知, 通过根据上述具体实施例的干扰管理的方法, 在 AP间不存在 直连接口的情况下, 集中控制节点根据 AP的不同负载或者小区边缘的不同资 源需求进行 AP间的集中干扰控制, 实现半静态干扰协调。
下面将结合图 4和图 5描述根据本发明实施例的干扰管理的装置。
如图 4所示,干扰管理的装置 40包括上报单元 41、第一接收单元 42和调度 单元 43。 其中, 上报单元 41用于向向集中控制节点上报调度参数, 所述调度 参数包括对 UE的服务小区产生干扰的小区的信息和 /或所述 UE的服务小区的 负载信息,其中所述对 UE的服务小区产生干扰的小区的信息由所述 UE上报的 所述 UE对相邻小区进行测量的测量结果生成。 第一接收单元 42用于接收所述 调度单元 43用于根据第一接收单元 42接收的调度控制信息进行资源调度。 在图 5中,干扰管理的装置 50包括第二接收单元 51、确定单元 52和发送单 元 53。 其中, 第二接收单元 51用于接收一个或多个 AP上报的调度参数, 所述 调度参数包括对所述一个或多个 AP中每一个 AP服务的 UE的服务小区产生干 扰的小区的信息和 /或所述 UE的服务小区的负载信息, 其中所述对 UE的服务 小区产生干扰的小区的信息由所述 UE上报的所述 UE对相邻小区进行测量的 测量结果生成。 确定单元 52用于基于所述第二接收单元接收的调度参数确定 调度控制信息。 发送单元 53用于将所述确定单元确定的调度控制信息下发至 所述一个或多个 AP, 以便所述一个或多个 AP根据所述调度控制信息进行资源 调度。
可选地, 干扰管理的装置 40可以是 AP, 例如基站。 干扰管理的装置 50可 以是集中控制节点,例如 LTE-Hi GW、宏基站或其他的 LTE-Hi AP之外的网络 节点。
对于干扰管理的装置 40和干扰管理的装置 50, 两者间传输的对干扰管理 的装置 40服务的 UE的服务小区产生干扰的小区的信息包括该小区的频谱信 息和标识信息; 服务小区的负载信息包括服务小区的频谱信息和服务小区边 缘的时频资源需求信息; 调度控制信息包括分配给服务小区边缘的时频资源 信息。 进一步地, 服务小区的频谱信息包括服务小区的带宽和频点, 服务小 区边缘的时频资源需求信息包括服务 d、区边缘所需的专用时频资源块信息, 分配给服务小区边缘的时频资源信息包括分配给服务小区边缘的专用时频资 源块信息。 具体而言, 专用时频资源块信息包括 GBR业务的时频资源块信息 或者非 GBR业务的时频资源块信息或者非 GBR业务的优先比特率 PBR的时频 资源块信息。
当干扰管理的装置 50的第二接收单元 51接收到服务小区边缘所需的 GBR 业务的时频资源块信息和非 GBR业务的时频资源块信息时, 则干扰管理的装 置 50的确定单元 52确定调度控制信息包括分配给服务小区边缘的 GBR业务的 时频资源块信息和非 GBR业务的时频资源块信息。 当干扰管理的装置 50的第 二接收单元 51接收到服务小区边缘所需的 GBR业务的时频资源块信息和非 GBR业务的优先比特率 PBR的时频资源块信息, 则干扰管理的装置 50的确定 单元 52确定调度控制信息包括分配给服务小区边缘的 GBR业务的时频资源块 信息和非 GBR业务的优先比特率 PBR的时频资源块信息以及公共时频资源块 信息, 其中公共时频资源块是供一个或多个 AP自由竟争使用的时频资源块。 此外, 调度控制信息还可以包括允许的传输功率信息。 调度参数还可以 包括干扰时间段、 服务小区边缘的用户满意反馈信息以及被关闭 AP的关闭信 息。
由上可知, 通过根据上述具体实施例的干扰管理的装置, 在 AP间不存在 直连接口的情况下, 集中控制节点根据 AP的不同负载或者小区边缘的不同资 源需求进行 AP间的集中干扰控制, 实现半静态干扰协调。 本领域普通技术人员可以意识到, 结合本文中所公开的实施例描述的各 示例的单元及算法步骤, 能够以电子硬件、 或者计算机软件和电子硬件的结 合来实现。 这些功能究竟以硬件还是软件方式来执行, 取决于技术方案的特 定应用和设计约束条件。 专业技术人员可以对每个特定的应用来使用不同方 法来实现所描述的功能, 但是这种实现不应认为超出本发明的范围。 所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 上述描 述的系统、 装置和单元的具体工作过程, 可以参考前述方法实施例中的对应 过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统、 装置和 方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示 意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可 以有另外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个 系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间 的耦合或直接耦合或通信连接可以是通过一些接口, 装置或单元的间接耦合 或通信连接, 可以是电性, 机械或其它的形式。
为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者也可以分布到多个网络单元上。 可以根据实际的需要选择其中的部分或 者全部单元来实现本实施例方案的目的。 另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在一个单 元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用 时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发明的 技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可 以以软件产品的形式体现出来, 该计算机软件产品存储在一个存储介质中, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者 网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。 而前述的 存储介质包括: U盘、 移动硬盘、 只读存储器(ROM, Read-Only Memory )、 随机存取存储器 (RAM, Random Access Memory ) 、 磁碟或者光盘等各种 可以存储程序代码的介质。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局限 于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易 想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护 范围应所述以权利要求的保护范围为准。

Claims

权 利 要求 书
1、 一种干扰管理的方法, 其特征在于, 包括: 向集中控制节点上报调度参数, 所述调度参数包括对用户设备的服务小区 产生干扰的小区的信息和 /或所述用户设备的服务小区的负载信息, 其中所述对 用户设备的服务小区产生干扰的小区的信息由所述用户设备上报的所述用户设 备对相邻小区进行测量的测量结果生成; 接收所述集中控制节点下发的根据所述调度参数确定的调度控制信息; 根据所述调度控制信息进行资源调度。
2、 根据权利要求 1所述的方法, 其特征在于, 所述对用户设备的服务小区 产生干扰的小区的信息包括对用户设备的服务小区产生干扰的小区的频谱信息 和对用户设备的服务小区产生干扰的小区的标识信息。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述用户设备的服务小区 的负载信息包括服务小区的频语信息和服务小区边缘的时频资源需求信息。
4、 根据权利要求 3所述的方法, 其特征在于, 所述服务小区的频谱信息包 括所述服务小区的带宽和频点。
5、 根据权利要求 3所述的方法, 其特征在于, 所述服务小区边缘的时频资 源需求信息包括服务小区边缘所需的专用时频资源块信息。
6、 根据权利要求 1所述的方法, 其特征在于, 所述调度控制信息包括分配 给服务小区边缘的时频资源信息。
7、 根据权利要求 6所述的方法, 其特征在于, 所述分配给服务小区边缘的 时频资源信息包括分配给服务小区边缘的专用时频资源块信息。
8、 根据权利要求 5或 7所述的方法, 其特征在于, 所述专用时频资源块信息 包括:
保证比特率 GBR业务的时频资源块信息; 或者 非保证比特率 non-GBR业务的时频资源块信息; 或者
非保证比特率 non-GBR业务的优先比特率 PBR的时频资源块信息。
9、 根据权利要求 6至 8中任一项所述的方法, 其特征在于, 所述分配给服务 小区边缘的时频资源信息还包括分配给服务小区边缘的公共时频资源块信息, 所述公共时频资源块是供一个或多个接入点自由竟争使用的时频资源块。
10、 根据权利要求 1至 9中任一项所述的方法, 其特征在于, 所述调度控制 信息还包括允许的传输功率信息。
1 1、 根据权利要求 1至 10中任一项所述的方法, 其特征在于, 所述调度参数 还包括干扰时间段和 /或服务小区边缘的用户满意反馈信息。
12、 一种干扰管理的方法, 其特征在于, 包括: 接收一个或多个接入点上报的调度参数, 所述调度参数包括对所述一个或 多个接入点所服务的用户设备的服务小区产生干扰的小区的信息和 /或所述用户 设备的服务小区的负载信息, 其中所述对用户设备的服务小区产生干扰的小区 的信息由所述用户设备上报的所述用户设备对相邻小区进行测量的测量结果生 成;
基于所述调度参数确定调度控制信息;
将所述调度控制信息下发至所述一个或多个接入点, 以便所述一个或多个 接入点根据所述调度控制信息进行资源调度。
13、 根据权利要求 12所述的方法, 其特征在于, 所述对用户设备的服务小 区产生干扰的小区的信息包括对用户设备的服务小区产生干扰的小区的频谱信 息和对用户设备的服务小区产生干扰的小区的标识信息。
14、 根据权利要求 12或 13所述的方法, 其特征在于, 所述用户设备的服务 小区的负载信息包括服务小区的频谱信息和服务小区边缘的时频资源需求信 息。
15、 根据权利要求 14所述的方法, 其特征在于, 所述服务小区的频谱信息 包括所述服务小区的带宽和频点。
16、 根据权利要求 14所述的方法, 其特征在于, 所述服务小区边缘的时频 资源需求信息包括服务小区边缘所需的专用时频资源块信息。
17、 根据权利要求 12所述的方法, 其特征在于, 所述调度控制信息包括分 配给服务小区边缘的时频资源信息。
18、 根据权利要求 17所述的方法, 其特征在于, 所述分配给服务小区边缘 的时频资源信息包括分配给服务小区边缘的专用时频资源块信息。
19、 根据权利要求 16或 18所述的方法, 其特征在于, 所述专用时频资源块 信息包括:
保证比特率 GBR业务的时频资源块信息; 或者
非保证比特率 non-GBR业务的时频资源块信息; 或者 非保证比特率 non-GBR业务的优先比特率 PBR的时频资源块信息。
20、 根据权利要求 12至 19中任一项所述的方法, 其特征在于, 所述基于所 述调度参数确定调度控制信息包括:
当所述服务小区边缘的时频资源需求信息的专用时频资源块信息包括 GBR 业务的时频资源块信息和非 GBR业务的时频资源块信息, 则确定所述调度控制 信息包括分配给服务小区边缘的 GBR业务的时频资源块信息和非 GBR业务的时 频资源块信息;
当所述服务小区边缘的时频资源需求信息的专用时频资源块信息包括 GBR 业务的时频资源块信息和非 GBR业务的优先比特率 PBR的时频资源块信息, 则 确定所述调度控制信息包括分配给服务小区边缘的 GBR业务的时频资源块信息 和非 GBR业务的优先比特率 PBR的时频资源块信息以及公共时频资源块信息, 所述公共时频资源块是供一个或多个接入点自由竟争使用的时频资源块。
21、 根据权利要求 12至 20中任一项所述的方法, 其特征在于, 所述调度控 制信息还包括允许的传输功率信息。
22、 根据权利要求 12至 21中任一项所述的方法, 其特征在于, 所述调度参 数还包括下述参数中的至少一个: 干扰时间段、 服务小区边缘的用户满意反馈 信息和被关闭接入点的关闭信息。
23、 一种干扰管理的装置, 其特征在于, 包括: 上报单元, 用于向集中控制节点上报调度参数, 所述调度参数包括对用户 设备的服务小区产生干扰的小区的信息和 /或所述用户设备的服务小区的负载信 息, 其中所述对用户设备的服务小区产生干扰的小区的信息由所述用户设备上 报的所述用户设备对相邻小区进行测量的测量结果生成;
第一接收单元, 用于接收所述集中控制节点下发的根据所述上报单元上报 的调度参数确定的调度控制信息;
调度单元, 用于根据所述第一接收单元接收的调度控制信息进行资源调度。
24、 根据权利要求 23所述的装置, 其特征在于, 所述对用户设备的服务小 区产生干扰的小区的信息包括对用户设备的服务小区产生干扰的小区的频谱信 息和对用户设备的服务小区产生干扰的小区的标识信息。
25、 根据权利要求 23或 24所述的装置, 所述用户设备的服务小区负载信息 包括服务小区的频语信息和服务小区边缘的时频资源需求信息.
26、 根据权利要求 25所述的装置, 其特征在于, 所述服务小区的频谱信息 包括所述服务小区的带宽和频点。
27、 根据权利要求 25所述的装置, 其特征在于, 所述服务小区边缘的时频 资源需求信息包括服务小区边缘所需的专用时频资源块信息。
28、 根据权利要求 23所述的装置, 其特征在于, 所述调度控制信息包括分 配给服务小区边缘的时频资源信息。
29、 根据权利要求 28所述的装置, 其特征在于, 所述分配给服务小区边缘 的时频资源信息包括分配给服务小区边缘的专用时频资源块信息。
30、 根据权利要求 27或 29所述的装置, 其特征在于, 所述专用时频资源块 信息包括:
保证比特率 GBR业务的时频资源块信息; 或者
非保证比特率 non-GBR业务的时频资源块信息; 或者 非保证比特率 non-GBR业务的优先比特率 PBR的时频资源块信息。
31、 根据权利要求 28至 30中任一项所述的装置, 其特征在于, 所述分配给 服务小区边缘的时频资源信息还包括分配给服务小区边缘的公共时频资源块信 息, 所述公共时频资源块是供一个或多个接入点自由竟争使用的时频资源块。
32、 根据权利要求 23至 31中任一项所述的装置, 其特征在于, 所述调度控 制信息还包括允许的传输功率信息。
33、 根据权利要求 23至 32中任一项所述的装置, 其特征在于, 所述调度参 数还包括干扰时间段和 /或服务小区边缘的用户满意反馈信息。
34、 一种干扰管理的装置, 其特征在于, 包括:
第二接收单元, 用于接收一个或多个接入点上报的调度参数, 所述调度参 数包括对所述一个或多个接入点所服务的用户设备的服务小区产生干扰的小区 的信息和 /或所述用户设备的服务小区的负载信息, 其中所述对用户设备的服务 小区产生干扰的小区的信息由所述用户设备上报的所述用户设备对相邻小区进 行测量的测量结果生成; 确定单元, 用于基于所述第二接收单元接收的调度参数确定调度控制信息; 发送单元, 用于将所述确定单元确定的调度控制信息下发至所述一个或多 个接入点, 以便所述一个或多个接入点根据所述调度控制信息进行资源调度。
35、 根据权利要求 34所述的装置, 其特征在于, 所述对用户设备的服务小 区产生干扰的小区的信息包括对用户设备的服务小区产生干扰的小区的频谱信 息和对用户设备的服务小区产生干扰的小区的标识信息。
36、 根据权利要求 34或 35所述的装置, 其特征在于, 所述服务小区的负载 信息包括服务小区的频语信息和服务小区边缘的时频资源需求信息。
37、 根据权利要求 36所述的装置, 其特征在于, 所述服务小区的频谱信息 包括所述服务小区的带宽和频点。
38、 根据权利要求 36所述的装置, 其特征在于, 所述服务小区边缘的时频 资源需求信息包括服务小区边缘所需的专用时频资源块信息。
39、 根据权利要求 34所述的装置, 其特征在于, 所述调度控制信息包括分 配给服务小区边缘的时频资源信息。
40、 根据权利要求 39所述的装置, 其特征在于, 所述分配给服务小区边缘 的时频资源信息包括分配给服务小区边缘的专用时频资源块信息。
41、 根据权利要求 38或 40所述的装置, 其特征在于, 所述专用时频资源块 信息包括:
保证比特率 GBR业务的时频资源块信息; 或者
非保证比特率 non-GBR业务的时频资源块信息; 或者
非保证比特率 non-GBR业务的优先比特率 PBR的时频资源块信息。
42、 根据权利要求 39至 41中任一项所述的装置, 其特征在于,
当所述第二接收单元接收到服务小区边缘所需的 GBR业务的时频资源块信 息和非 GBR业务的时频资源块信息时, 则所述确定单元确定调度控制信息, 所 述调度控制信息包括分配给服务小区边缘的 GBR业务的时频资源块信息和非 GBR业务的时频资源块信息;
当所述第二接收单元接收到服务小区边缘所需的 GBR业务的时频资源块信 息和非 GBR业务的优先比特率 PBR的时频资源块信息, 则所述确定单元确定调 度控制信息, 所述调度控制信息包括分配给服务小区边缘的 GBR业务的时频资 源块信息和非 GBR业务的优先比特率 PBR的时频资源块信息以及公共时频资源 块信息, 所述公共时频资源块是供一个或多个接入点自由竟争使用的时频资源 块。
43、 根据权利要求 34至 42中任一项所述的装置, 其特征在于, 所述调度控 制信息还包括允许的传输功率信息。
44、 根据权利要求 34至 43中任一项所述的装置, 其特征在于, 所述调度参 数还包括干扰时间段、 服务小区边缘的用户满意反馈信息以及被关闭接入点的 关闭信息。
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