WO2014082518A1 - 用于配置准空白子帧的装置和方法及无线通信异构网络 - Google Patents

用于配置准空白子帧的装置和方法及无线通信异构网络 Download PDF

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Publication number
WO2014082518A1
WO2014082518A1 PCT/CN2013/086308 CN2013086308W WO2014082518A1 WO 2014082518 A1 WO2014082518 A1 WO 2014082518A1 CN 2013086308 W CN2013086308 W CN 2013086308W WO 2014082518 A1 WO2014082518 A1 WO 2014082518A1
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WO
WIPO (PCT)
Prior art keywords
base station
information
user terminal
quasi
interfering base
Prior art date
Application number
PCT/CN2013/086308
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English (en)
French (fr)
Inventor
崔琪楣
田辉
王萌
田鹏
高砾琦
Original Assignee
索尼公司
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.)
Filing date
Publication date
Priority to JP2015544332A priority Critical patent/JP6004119B2/ja
Priority to KR1020157016880A priority patent/KR101708580B1/ko
Priority to BR112015011803-8A priority patent/BR112015011803B1/pt
Priority to KR1020197035117A priority patent/KR20190135548A/ko
Application filed by 索尼公司 filed Critical 索尼公司
Priority to KR1020177003654A priority patent/KR102051716B1/ko
Priority to EP13859303.3A priority patent/EP2928248B1/en
Priority to MX2015006080A priority patent/MX344874B/es
Priority to AU2013351742A priority patent/AU2013351742B2/en
Priority to RU2015125530A priority patent/RU2623460C2/ru
Priority to CA2891804A priority patent/CA2891804C/en
Priority to US14/758,422 priority patent/US9936513B2/en
Publication of WO2014082518A1 publication Critical patent/WO2014082518A1/zh
Priority to ZA2015/04611A priority patent/ZA201504611B/en
Priority to AU2016247093A priority patent/AU2016247093B2/en
Priority to US15/892,708 priority patent/US10251183B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/20Arrangements for detecting or preventing errors in the information received using signal quality detector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/345Interference values
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H04W52/244Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/045Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/20Interfaces between hierarchically similar devices between access points
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates generally to the field of wireless communications, and in particular, to an apparatus for configuring an Almost Blank Subframe (ABS) in a wireless communication heterogeneous network, a wireless communication heterogeneous network, and A method of configuring a quasi-blank subframe in a wireless communication heterogeneous network.
  • ABS Almost Blank Subframe
  • LTE-A Long Term Evolution-Advanced
  • UMTS Universal Mobile Telecommunications System
  • the quasi-blank subframe technique inserts a quasi-blank sub-frame in accordance with a design pattern in a normal sub-frame transmitted by a base station as an interference source.
  • the configuration for aligning blank sub-frames includes three parameters: alignment blank sub-frame silence ratio, quasi-blank sub-frame transmit power reduction, and design pattern.
  • the transmit power of the interfering base station is set to zero or other predetermined reduction according to the configured parameters, thereby reducing the service provided by the interfered base station but not by the interfering base station. Edge user interference to improve the edge performance of the victim base station.
  • the current quasi-blank subframe technology also inevitably causes the loss of the total throughput of the interfering base station while improving the edge performance of the interfered base station.
  • the current quasi-blank sub-frame technology adopts a global configuration scheme when configuring the parameters of the quasi-blank sub-frames, which results in a better configuration only on the basis of the overall evaluation, and does not configure a quasi-blank sub-frame according to the specific situation. Therefore, there is no equalization between the edge performance of the interfered base station and the total throughput of the interfering base station according to the specific situation.
  • an apparatus for configuring a quasi-blank subframe in a wireless communication heterogeneous network comprising: a first information acquisition unit configured to acquire first information, The information is related to an indicator indicating the communication quality of the user terminal served by the interfering base station; the second information acquiring unit is configured to acquire the second information, and the second information is related to the degree of interference of the user terminal indicating interference from the interfering base station And an arranging unit configured to configure the quasi-blank sub-frame transmitted by the interfering base station by adjusting at least one of a quasi-blank sub-frame silence ratio and a power reduction amount based on the first information and the second information.
  • a wireless communication heterogeneous network including: a first base station including a first information acquiring unit and a configuration unit, and a second base including a second information acquiring unit Base station.
  • the first information acquisition unit is configured to acquire first information related to an indicator indicating the communication quality of the user terminal served by the first base station.
  • the second information acquisition unit is configured to acquire second information related to an indicator indicating the degree of interference of the user terminal served by the second base station with the first base station.
  • the configuration unit is configured to configure the quasi-blank subframe transmitted by the first base station by adjusting at least one of a quasi-blank subframe silence ratio and a power reduction amount based on the first information and the second information.
  • a wireless communication heterogeneous network comprising: a first base station including a first information acquisition unit, and a second information including a second information acquisition unit and a configuration unit Base station.
  • the first information acquisition unit is configured to acquire first information related to an indicator indicating the communication quality of the user terminal served by the first base station.
  • the second information acquisition unit is configured to acquire second information related to an indicator indicating the degree of interference of the user terminal served by the second base station with the first base station.
  • the configuration unit is configured to configure the quasi-blank subframe transmitted by the first base station by adjusting at least one of a quasi-blank subframe silence ratio and a power reduction amount based on the first information and the second information.
  • a method for configuring a quasi-blank subframe in a wireless communication heterogeneous network further includes: acquiring first information, where the first information and the interfering base station are indicated Corresponding to an indicator of the communication quality of the served user terminal; acquiring second information related to an indicator indicating the degree of interference of the user terminal interfered by the interfering base station; and adjusting the quasi-blank based on the first information and the second information Subframe silence ratio and power reduction amount to One of the less is configured to configure a quasi-blank subframe transmitted by the interfering base station.
  • a program that causes a computer running the program to perform the steps of: acquiring first information, the first information and a communication quality indicating a user terminal served by the interfering base station Corresponding to; obtaining second information, wherein the second information is related to an indicator indicating a degree of interference of the user terminal interfered by the interfering base station; and adjusting the quasi-blank subframe silence ratio and power reduction based on the first information and the second information At least one of the quantities configures a quasi-blank subframe transmitted by the interfering base station.
  • a corresponding computer readable storage medium having stored thereon a program executable by a computing device, the program being capable of causing the calculation when executed The device performs the above processing method.
  • Apparatus for configuring a quasi-blank subframe in a wireless communication heterogeneous network, a wireless communication heterogeneous network, and for configuring a quasi-blank subframe in a wireless communication heterogeneous network can configure a quasi-blank sub-frame according to a specific situation, and considers the performance of the user terminal served by the interfering base station and the user terminal interfered by the interfering base station, thereby improving the overall performance of the wireless communication heterogeneous network.
  • FIG. 1 is a schematic diagram showing an example of an apparatus for configuring a quasi-blank subframe in a wireless communication heterogeneous network, according to an embodiment of the present disclosure
  • FIG. 2 is a diagram showing an example of a parameter table of a predetermined parameter pair including a quasi-blank sub-frame silence ratio and a power reduction amount, according to an embodiment
  • FIG. 3 is a diagram showing an example of another parameter table including a predetermined parameter pair of a quasi-blank subframe silence ratio and a power reduction amount according to an embodiment
  • FIG. 4 is a diagram showing an example of a wireless communication heterogeneous network in accordance with an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram showing an example of another wireless communication heterogeneous network in accordance with an embodiment
  • FIG. 6 is a flow chart showing a method for configuring a quasi-blank sub-frame in a wireless communication heterogeneous network, according to an embodiment
  • FIG. 7 is a schematic diagram showing a specific application example of an embodiment of the invention. - -
  • FIG. 8 is a schematic diagram showing a quasi-blank sub-frame used to configure a dry-plug base station in the example of FIG. 7;
  • FIG. 9 is a schematic diagram showing another specific application example of the embodiment of the opening.
  • FIG. 10 is a schematic diagram showing an example of a hardware configuration according to an embodiment of the invention.
  • the device 10 includes a first information acquisition unit 101, a second information acquisition unit 102, and a configuration unit 103.
  • FIG. 1 also shows a dry station 20 and its served user terminals 21, a disturbed user terminal 31, and a base station 30 that provides service to the interfered user terminal 31.
  • the interfering base station 20 and the base station 30 providing service to the interfered user terminal 31 constitute a wireless communication heterogeneous network.
  • heterogeneous network refers to a network including different types of base stations, which may be base stations, home base stations, pico base stations, or other suitable types of base stations.
  • the user terminals 21 served by the interfering base station 20 may be one or more, collectively referred to herein as user terminals 21.
  • the interfered user terminal 31 may also be one or more, collectively referred to herein as the user terminal 31.
  • the user terminal can be a mobile phone, a notebook computer, a desktop personal computer or other suitable type of user terminal having communication capabilities.
  • the first information acquiring unit 101 is configured to acquire first information, the first information and the indicating user
  • the indicator of the communication quality of the terminal 21 is related to, for example, an indicator itself indicating the communication quality of the user terminal 21 or a value obtained based on the indicator.
  • the second information acquiring unit 102 is configured to acquire second information related to an indicator indicating the degree of interference of the user terminal 31, for example, may be related to an indicator indicating the degree of interference of the user terminal 31 itself or The value obtained based on this indicator.
  • the configuration unit 103 is configured to configure the quasi-blank subframe transmitted by the interfering base station 20 by adjusting at least one of the quasi-blank sub-frame silence ratio and the power reduction amount based on the first information and the second information.
  • the device 10 can be set independently of the interfering base station 20 and the base station 30, or can be disposed inside the interfering base station 20 or the base station 30, and a part of the unit of the device 10 can be disposed at the interfering base station 20. In the middle, another part of the unit is set in the base station 30. In addition, the device 10 can also be entirely disposed in the interfering base station 20, wherein the second information obtaining unit 102 acquires the second information by interfering with the communication between the base station 20 and the base station 30, such as through the X2 interface.
  • Another possible way is to set the device 10 all in the base station 30, wherein the first information acquiring unit 101 acquires the first information by the communication between the interfering base station 20 and the base station 30, such as through the X2 interface, and the configuration unit 103 The quasi-blank subframe is transmitted to the interfering base station 20 by interfering communication between the base station 20 and the base station 30, such as through the X2 interface. Therefore, according to the embodiment of the invention, a base station including the device 10 is also disclosed.
  • the indicator indicating the communication quality of the user terminal 21 and the reference signal received power (RSRP), the communication quality indicator (CQI), and the reference based on the channel state information when the user terminal 21 receives the signal of the interfering base station 20 At least one of signal received power (CSI-RSRP) and link coupling loss.
  • the indicator may be related only to one of the reference signal received power, the communication quality indicator, the reference signal received power based on the channel state information, and the coupling loss of the link when the user terminal 21 receives the signal of the interfering base station 20, It can be associated with any number of them, for example, it can be a weighted sum of multiple parameters.
  • the indicator indicating the communication quality of the user terminal 21 may be related to the reference signal received power, which may be, for example, a cell-specific reference signal (CRS).
  • the reference signal received power which may be, for example, a cell-specific reference signal (CRS).
  • CRS cell-specific reference signal
  • the indicator indicating the communication quality of the user terminal 21 may be related to the reference signal reception power based on the channel state information.
  • the indicator indicating the communication quality of the user terminal 21 can also be related to other appropriate.
  • an indicator indicating the communication quality of the user terminal 21 can be measured by the user terminal 21 and supplied to the interfering base station 20.
  • the interfering base station 20 supplies the first information related to the indicator to the configuration unit 103.
  • the interfering base station 20 provides the first information to the configuration unit 103 through communication between the base stations, such as through the X2 interface.
  • the indicator indicating the communication quality of the user terminal 21 can also be measured by other means, for example, by interfering with the base station 20.
  • the indicator indicating the degree of interference of the user terminal 31 and the reference signal received power of the user terminal 31 when receiving the signal of the interfering base station 20, the communication quality indicator, the reference signal received power based on the channel state information, and the chain At least one of the coupling losses of the paths is related.
  • the indicator may be related only to one of the reference signal received power, the communication quality indicator, the reference signal received power based on the channel state information, and the coupling loss of the link when the user terminal 31 receives the signal of the interfering base station 20, It can be associated with any number of them, for example, it can be a weighted sum of multiple parameters.
  • the indicator indicating the degree of interference of the user terminal 31 can be related to the reference signal received power.
  • an indicator indicating the degree of interference of the user terminal 31 may be related to the received power of the reference signal based on the channel state information.
  • the indicator of the degree of interference of the user terminal 31 may also be associated with other suitable parameters.
  • an indicator indicating the degree of interference of the user terminal 31 can be measured by the user terminal 31 and provided to the base station 30.
  • the base station 30 provides the second information related to the indicator to the configuration unit 103. Specifically, when the configuration unit 103 is disposed in the interfering base station 20, the base station 30 supplies the second information to the configuration unit 103 through communication between the base stations through, for example, the ⁇ 2 interface.
  • the indication of the degree of interference of the user terminal 31 can also be measured by other means, such as by the base station 30.
  • the configuration unit 103 may be further configured to configure the quasi-blank subframe transmitted by the interfering base station 20 by selecting in a parameter table of a predetermined parameter pair including a quasi-blank subframe silence ratio and a power reduction amount.
  • the power reduction amount of the quasi-blank sub-frame is constant
  • the quasi-blank is improved
  • the performance of the edge users served by the base station 30 i.e., the edge performance of the base station 30
  • the total throughput of the interfering base station 20 is reduced, and vice versa.
  • the quasi-blank subframe constant ratio does not change
  • the power reduction amount of the quasi-blank subframe is increased, the total throughput of the interfering base station 20 is lowered and the edge performance of the base station 30 is improved, and vice versa.
  • the total throughput of the interfering base station 20 and the edge performance of the base station 30 can be configured to improve the overall performance of the wireless communication heterogeneous network.
  • the configuration unit 103 may also configure the quasi-blank sub-frame transmitted by the interfering base station 20 in other manners, for example, changing one of the quasi-blank sub-frame silence ratio and the power reduction amount, that is, adjusting another quantity, that is, adjusting Any of the blank sub-frame silence ratio and power reduction.
  • the quasi-blank subframe transmitted by the interfering base station 20 When the power of the quasi-blank subframe transmitted by the station 20 is reduced to 0, the quasi-blank subframe transmitted by the interfering base station 20 does not substantially interfere with the subframe transmitted by the base station 30 in the same time period, so that The edge performance of the base station 30 is better improved in the case where the blank subframe has a silent ratio.
  • the parameter pair can also be set such that the greater the silence ratio in the parameter pair, the larger the power reduction amount, and thus the quieter ratio is larger and the power reduction amount is more
  • a large parameter pair can greatly improve the edge performance of the base station 30 and reduce the total throughput of the interfering base station 20.
  • the proportion of the macro base station transmitting the quasi-blank sub-frame cannot reach 100%. Otherwise, the macro base station serving as the primary serving base station of the heterogeneous network cannot work normally.
  • a person skilled in the art can also set a parameter pair according to the characteristics of other application scenarios, especially the type of interfering base station. In other words, the predetermined parameter pair described above is determined according to the type of interfering base station.
  • the configuration unit 103 may be configured to respectively set the first information and the second information to a first reference range including a lower limit of the communication quality of the user terminal 21 and an upper limit of the degree of interference included in the user terminal 31.
  • the second reference range is compared, and in a manner such that the first information and the second information are in the first reference range and the second reference range, respectively, according to the comparison result of the first information and the first reference range, and the second information and the The comparison result of the two reference ranges configures the quasi-blank subframe transmitted by the interfering base station 20.
  • the configuration unit 103 may be configured to adjust the first reference range and the second reference range according to the indicators indicating the characteristics of the user terminal 21 and the user terminal 31, thereby comparing the first information with the reference range.
  • the result and the comparison result of the second information and the reference range configure the quasi-blank subframe transmitted by the interfering base station.
  • the first reference range and the second reference range may be respectively set for the first information and the second information, and the first information and the second information are respectively maintained at the first reference by aligning the blank subframes.
  • the range and the second reference range are such that the configuration of the aligned blank subframes can be performed on a case-by-case basis.
  • the first reference range and the second reference range may be adjusted according to an indicator indicating the characteristics of the user terminal 21 and the user terminal 31, so that a trade-off may be made between the total throughput of the interfering base station 20 and the edge performance of the base station 30 depending on the specific situation.
  • the reference range can be adjusted according to other suitable indicators or set to a fixed reference range.
  • the first reference range and the second reference range may be set not only for the first information and the second information, but also a common reference may be set for the amount related to the first information and the second information.
  • - - Range for example, sets a common reference range for the weighted sum of the first information and the second information.
  • the reference range for the first information and the reference range for the second information may be separately adjusted according to the above indicators, or may be adjusted according to the above indicators.
  • a reference range for both information and second information may be separately adjusted according to the above indicators, or may be adjusted according to the above indicators.
  • the user terminal 21 and the user based on the first information and the second information by setting other suitable manners other than the reference range for the first information and the second information.
  • the indicator of the characteristics of the terminal 31 is aligned with the blank subframe to achieve a trade-off between the total throughput of the interfering base station 20 and the edge performance of the base station 30 as the case may be.
  • a reference range may be set for the weighted sum of the first information, the second information, and an indicator indicating the characteristics of the user terminal 21 and the user terminal 31, and configured such that the weighted sum is maintained within the reference range. Blank sub-frame.
  • the index indicating the characteristics of the user terminal 21 and the user terminal 31 is related to at least one of the number of the user terminals 21, the number of the user terminals 31, the traffic volume of the user terminal 21, and the traffic volume of the user terminal 31.
  • the indicator indicating the characteristics of the user terminal 21 and the user terminal 31 may be related only to one of the number of the user terminal 21, the number of the user terminal 31, the traffic volume of the user terminal 21, and the traffic volume of the user terminal 31, and may also be Associated with any of these.
  • a specific example of an indicator indicating the characteristics of the user terminal 21 and the user terminal 31 will be given later.
  • the configuration unit 103 uses this indicator to determine how to balance the edge performance of the base station 30 with the total throughput of the interfering base station 20. In other words, the configuration unit 103 determines, by the indicator, how to configure the quasi-blank subframe of the interfering base station 20 to achieve a trade-off between the total throughput of the interfering base station 20 and the edge performance of the base station 30, as the case may be.
  • the indicator may be related to the number of user terminals 21, and when the number of user terminals 21 is larger, the quasi-blank subframe of the interfering base station 20 is configured with more consideration of the total throughput of the interfering base station 20.
  • the indicator may also be related to the number of user terminals 31, and when the number of user terminals 31 is greater, the edge performance of the base station 30 is more considered to configure the quasi-blank subframes of the interfering base station 20.
  • the indicator can also be related to the relationship between the number of user terminals 21 and user terminals 31, i.e., both the number of user terminals 21 and the number of user terminals 31. For example, when the ratio of the number of user terminals 31 to the number of user terminals 21 increases, the marginal performance of the base station 30 is more considered to configure the quasi-blank subframes of the interfering base station 20.
  • the configuration may be configured.
  • the unit 103 is configured to reduce the lower limit of the communication quality of the user terminal 21 in the first reference range when the index is increased, and to lower the upper limit of the degree of interference of the user terminal 31 included in the second reference range.
  • the indicator can be related to the traffic of the user terminal 21, and when the traffic of the user terminal 21 is more, the total blankness is more considered to configure the quasi-blank subframe of the interfering base station 20.
  • the indicator may also be related to the traffic volume of the user terminal 31, and when the traffic of the user terminal 31 is more, the edge performance of the base station 30 is more considered to configure the quasi-blank subframe of the interfering base station 20.
  • the indicator can also be related to the relationship between the traffic of the user terminal 21 and the user terminal 31, i.e., both the traffic volume of the user terminal 21 and the traffic volume of the user terminal 31.
  • the quasi-blank subframe of the interfering base station 20 is configured in consideration of the edge performance of the base station 30.
  • the configuration unit 103 can be configured to be When the index is increased, the lower limit of the communication quality of the user terminal 21 included in the first reference range is lowered, and the upper limit of the degree of interference of the user terminal 31 included in the second reference range is lowered.
  • the indicator may also be related to the number of the user terminal 21, the number of the user terminal 31, the traffic volume of the user terminal 21, and the traffic volume of the user terminal 31, for example, the indicator may be the user terminal 21 and A weighted sum of the ratio of the number of user terminals 31 to the ratio of the traffic volume of the user terminal 21 and the user terminal 31.
  • the indicator may also be in the other appropriate manner with the number of user terminals 21, the number of user terminals 31, the traffic volume of the user terminal 21, and the traffic volume of the user terminal 31. At least one correlation is provided in order to achieve a trade-off between the total throughput of the interfering base station 20 and the edge performance of the base station 30 as the case may be.
  • the indicator may also be related to other appropriate amounts that can indicate the characteristics of the user terminal 21 and the user terminal 31, such as the importance or priority of the user terminal 21 and the user terminal 31, thereby
  • the metrics are implemented to achieve a trade-off between the total throughput of the interfering base station 20 and the edge performance of the base station 30, as the case may be.
  • the configuration unit 103 When the configuration unit 103 is set in the base station 30, the configuration unit 103 provides information related to the configuration scheme to the interfering base station 20 by communication between the base stations through, for example, an X2 interface, for example, the selected parameter The specific value of the pair is provided to the interfering base station 20, or is dry - When the scrambling base station 20 itself stores a list of parameter pairs, the number of the selected parameter pair is supplied to the interfering base station 20. Furthermore, it is also possible to transmit, in the case where the interfering base station 20 itself stores a list of parameter pairs (for example, the list shown in FIG. 2), the relative position of the selected parameter pair relative to the parameter pair currently used by the interfering base station 20. To the interfering base station 20, for example, information for transmitting a position indicating that the parameter opposite power reduction amount is large and the silence ratio is small is transmitted.
  • a list of parameter pairs for example, the list shown in FIG. 2
  • the configuration of the quasi-blank sub-frames may be performed periodically, or may be performed in other suitable manners, for example, according to event triggering.
  • a possible scenario based on event triggering is to align a blank subframe for reconfiguration when the interfering base station 20 detects that the number of user terminals 21 or the change in traffic volume satisfies a predetermined condition.
  • the quasi-blank sub-frame silence ratio and the power reduction amount are periodically adjusted according to the amount of change of the first information, in order to avoid the "ping-pong effect" (that is, the above-mentioned adjustment of the quasi-blank sub-frame in the first direction)
  • the parameter of the quasi-blank sub-frame needs to be adjusted again in the second direction opposite to the first direction, and thereafter, due to the corresponding change of the first information or the second information.
  • the foregoing parameter of the quasi-blank sub-frame needs to be adjusted toward the first direction, and the process may be repeated a plurality of times.
  • the quasi-blank sub-frame silence ratio and the power reduction amount may not be adjusted when the change amount of the first information is less than a predetermined threshold.
  • the amount of change in the second information may be less than a predetermined threshold.
  • the predetermined thresholds set here for the first information and the second information may be the same or different. Further, the threshold may be set for the relative change amount of the first information and the second information, or may be set for the absolute change amount of the first information and the second information.
  • a person skilled in the art may also take other measures to reduce the sensitivity of triggering the quasi-blank subframe reconfiguration, thereby avoiding the "ping-pong effect".
  • the sensitivity when adjusting the above parameters of the quasi-blank sub-frame in one direction may be different from the sensitivity when the above-mentioned parameters of the quasi-blank sub-frame are adjusted in the other direction, thereby avoiding repeated adjustment of the above parameters.
  • FIG. 4 illustrates a wireless communication heterogeneous network 100 in accordance with an open embodiment.
  • network 100 includes a first base station 120 and a second base station 130.
  • the first base station 120 includes a first information acquisition unit 122 and a configuration unit 123.
  • the second base station 130 includes a second information acquiring unit - -
  • the first base station 120 is a dry 41 ⁇ 2 station, and the user terminals served by the first base station 120 are collectively referred to as a user terminal 121.
  • the user terminals served by the second base station 130 and interfered by the first base station 120 are collectively referred to as user terminals.
  • 131 Similar to the example in Fig. 1, the user terminal 121 and the user terminal 131 may be one or more user terminals, respectively.
  • the first information acquisition unit 122 is configured to acquire first information related to an indicator indicating the communication quality of the user terminal 121.
  • the second information acquisition unit 132 is configured to acquire second information related to an indicator indicating the degree of interference of the user terminal 131 by the first base station 120.
  • the configuration unit 123 is configured to configure the quasi-empty sub-frame transmitted by the first base station 120 by adjusting at least one of a quasi-blank sub-frame silence ratio and a power reduction amount based on the first information and the second information.
  • the first base station 120 can be a home station, in which case the second base station 130 can be a base station.
  • the first base station 120 can also be a macro base station, and the second base station 130 can be a pico base station.
  • the second base station 130 can provide the second information to the first base station 120 via the X2 interface.
  • Figure 5 shows a wireless communication heterogeneous network 200 in accordance with an embodiment.
  • the network 200 includes a first base station 220 and a second base station 230.
  • the first base station 220 includes a first information acquisition unit 222.
  • the second base station 230 includes a second information acquiring unit 232 and a configuration unit 233.
  • the first base station 220 is a dry station, and the user terminals served by the first base station 220 are collectively referred to as a user terminal 221, and the second base station 230 serves The user terminals that are interfered by the first base station 220 are collectively referred to as the user terminal 231.
  • the user terminal 221 and the user terminal 231 may each be one or more user terminals.
  • the first information acquisition unit 222 is configured to acquire first information related to an indicator indicating the communication quality of the user terminal 221.
  • the second information acquisition unit 232 is configured to acquire second information related to an indicator indicating the degree of interference of the user terminal 231 by the first base station 220.
  • the configuration unit 233 is configured to configure the quasi-empty sub-frame transmitted by the first base station 220 by adjusting at least one of a quasi-blank sub-frame silence ratio and a power reduction amount based on the first information and the second information.
  • the second base station 230 can provide the second information to the first base station 220 through the ⁇ 2 interface, and the configuration unit 233 of the second base station 230 can pass the ⁇ 2 The interface configures the quasi-blank subframe sent by the first base station 220. - -
  • the second base station 230 can provide the second information to the first base station 220 through the X2 interface, and the configuration unit 233 of the second base station 230 can pass The X2 interface configures the quasi-blank subframe sent by the first base station 220.
  • Figure 6 illustrates a method for configuring a quasi-blank subframe in a wireless communication heterogeneous network, in accordance with an embodiment.
  • step S104 first information is obtained, the first information being related to an indicator indicating the communication quality of the user terminal served by the interfering base station.
  • This step can be performed, for example, by the first information acquisition unit 101, 122 or 222.
  • step S106 the second information is obtained, and the second information is related to an indicator indicating the degree of interference of the user terminal interfered by the interfering base station.
  • This step can be performed, for example, by the second information acquisition unit 102, 132 or 232.
  • step S108 based on the first information and the second information, the quasi-blank subframe transmitted by the interfering base station is configured by adjusting at least one of a quasi-blank subframe silence ratio and a power reduction amount.
  • This step can be performed, for example, by the configuration unit 103, 123 or 233.
  • step S110 the processing ends.
  • step S104 does not have to be performed before step S106, and step S106 may be performed first and then step S104 may be performed, and step S104 and step S106 may be performed in parallel.
  • FIG. 7 shows a scenario in which the home base stations 320, 330 coexist with the macro base station 340.
  • the user-served home base stations 320, 330 in the M" closed subscriber list act as interfering base stations, causing interference to the user terminals 341 of the macro base station 340.
  • the embodiments can be implemented for a wireless communication heterogeneous network including one or more interfering base stations.
  • the quasi-blank sub-frames of all the interfering base stations may be separately configured according to the method according to the embodiment of the present disclosure, or only the quasi-blank sub-frames of one or more interfering base stations may be configured according to the present The methods of the disclosed embodiments are configured separately.
  • the macro base station 340 provides services for a plurality of user terminals 341 including a user terminal 341a and a user terminal 341b, wherein the location of the user terminal 341a is close to the home base station 320 and is not in the user list of the home base station 320, and thus is subject to The interference of the home base station 320, while the location of the user terminal 341b is close to the home base station 330 and not in the subscriber list of the home base station 330, and thus is subject to interference from the home base station 330.
  • the home base station 320 provides service to the user terminal 321 in its subscriber list, and the home base station 330 provides service to the user terminal 331 in its subscriber list.
  • user terminals 321 and 331 can each be one or more user terminals.
  • the apparatus 10 of FIG. 1 may be included in the macro base station 340 or may be included in the home base station 320 or 330.
  • the home base station 320 and/or 330 as an interfering base station includes a first information acquiring unit 122 and a configuration unit 123
  • the macro base station 340 includes a second information acquiring unit 132, which may also be as shown in FIG.
  • the home base station 320 and/or 330 as an interfering base station includes a first information acquisition unit 222, which includes a second information acquisition unit 232 and a configuration unit 233.
  • the macro base station 340 transmits the subframes according to the design pattern 343. As can be seen from FIG. 7, all of the macro base stations 340 transmit the normal subframes.
  • the home station 320 transmits the subframe according to the design pattern 322. According to FIG. 7, the home base station 320 transmits one quasi-blank subframe every four normal subframes.
  • the home station 330 transmits the subframe according to the design pattern 332. According to the figure, the home base station - -
  • the silent ratio and power reduction amount of the home base station 320 transmitting the quasi-blank subframe and the silence ratio and the power reduction amount of the home base station 330 transmitting the quasi-blank subframe may be the list of FIG. 2 or FIG. ⁇ : Yes.
  • the method shown in Fig. 8 is directed to the home fan station 320 as an interfering base station, it can be applied to other base stations (e.g., the home base station 330) as an interfering base station. Moreover, the method shown in Fig. 8 can be applied in a scenario in which other types of base stations constitute a wireless communication heterogeneous network, such as the scenario in which the macro base station and the pico base station coexist and interfere with the base station base station as shown in FIG.
  • Fig. 8 is for periodic configuration, it may be applied to the case of being configured in other manners.
  • the home base station 320 sets the predetermined signal indicator S.
  • the predetermined interference indicators 10 and includes a macro base station 330 transmits the configuration quasi-reference blank subframe, for example, the parameter table shown in FIG. S Q is used to indicate a predetermined lower limit of the performance of the user terminal 321 in the home base station 320.
  • step S202 calculating the total traffic volume T of the user terminal 321 served by the home base station 320, and calculating the total traffic volume 7 ⁇ _TM of the user terminal 341a served by the macro base station 340 and interfered by the home base station 320, Then calculate the ratio of the total traffic of the interfered user to the total traffic of the undisturbed user as the relative traffic ⁇ , see Equation 1:
  • step S203 if the relative traffic volume increases, it is indicated that the edge performance of the macro base station 340 should be more emphasized, the edge performance requirement for the macro base station 340 is increased, and the requirement for the total throughput of the home base station 320 is appropriately reduced. Therefore, the predetermined signal index S Q and the predetermined interference index I are lowered. .
  • the predetermined signal indicator S Q and the predetermined interference indicator I The relationship between the specific reduction and increase and the relative traffic can be calculated according to a specific function. For example, one exemplary correlation is to make the predetermined signal indicator S Q and the predetermined interference indicator I. There is a linear negative correlation between the specific reduction and the amount of increase and the relative traffic Tr .
  • step S202 the number n1 of user terminals 321 served by the home base station 320 may also be calculated, and the number n2 of user terminals 341a served by the macro base station 340 and interfered by the home base station 320 may be calculated, thereby calculating the interfered user.
  • the ratio of the number of non-interfered users to the number of non-interfered users is the relative quantity a.
  • step S203 if the relative amount a is increased, it is indicated that the edge performance of the macro base station 340 should be more emphasized, the requirement for the edge performance of the macro base station 340 is increased, and the total throughput for the home base station 320 is appropriately reduced. The requirement, therefore, lowers the predetermined signal indicator S. And predetermined interference indicator I. .
  • the relative amount a is decreased, it is indicated that the total throughput of the home base station 320 should be more emphasized, the requirement for the total throughput of the home base station 320 is increased, and the requirements for the edge performance of the macro base station 340 are appropriately lowered, so that the reservation is raised.
  • the predetermined signal indicator S Q and the predetermined interference indicator I The relationship between the specific amount of reduction and the amount of increase and the relative amount a can also be calculated from a specific function. For example, one exemplary correlation is to make the predetermined signal indicator S Q and the predetermined interference indicator I. There is a linear negative correlation between the specific reduction and the amount of increase and the relative amount a.
  • steps S201 to S203 can be performed by the aforementioned configuration unit 103, 123 or 233.
  • each user terminal 321 of the home base station 320 measures the received signal of the home base station 320, and reports to the home base station 320 an indicator indicating the communication quality of the user terminal 321 served by the home base station 320.
  • the indicator may include, for example, a reference signal received power of the receiving home base station 320 (for a system prior to 3GPP Release 10, it may be an RSRP, - - For 3GPP Release 10 and later systems, it can be CSI-RSRP) and communication quality indicators.
  • the indicator may also include a link coupling loss parameter. This indicator can be provided by the home base station 320 to the aforementioned first information acquisition unit 101, 122 or 222.
  • the indicator indicating the communication quality of the user terminal 321 served by the home base station 320 may further include, for example, the sum of the reference signal received power of the user terminal 321 for the home base station 320 and the reference signal received power of the user terminal 321 for all base stations. The ratio.
  • the indicator can also be a weighted sum of the parameters it includes.
  • each user terminal 341 of the macro base station 340 measures the received signals of all the base stations, and if there is a reference signal received power for the base station other than the macro base station 340 for a certain user terminal 341 A certain percentage (e.g., 50%) greater than the reference signal received power for the macro base station 340 is identified as the user terminal interfered by the base station of the macro base station 340. Thereby, it is possible to identify that the user terminals 341a, 341b interfered by the home base station 320 in the user terminal 341 served by the macro base station 340 can be one or more user terminals.
  • a certain percentage e.g. 50%
  • the user terminal 341a which is interfered by the home base station 320, indicates to the macro base station 340 an indicator of the degree of interference of the user terminal 341a, which may include, for example, the reference signal received power and the communication quality indicator of the receiving home base station 320.
  • the indicator may further include a link coupling loss parameter.
  • the indicator may be provided by the macro base station 340 to the aforementioned second information acquiring unit 102, 132 or 232.
  • the indicator indicating the degree of interference of the user terminal 341a interfered by the home base station 320 may further include, for example, the reference signal received power of the user terminal 341a for the home base station 320 and the reference signal received power of the user terminal 341a for all base stations.
  • the indicator can also be a weighted sum of the parameters it includes.
  • step S206 based on the index indicating the communication quality of the user terminal 321 served by the home base station 320 acquired in step S204, the signal index S as an example of the first information according to the embodiment of the present disclosure is calculated.
  • the weighted sum of these indicators can be obtained as the index S based on the importance of each user terminal 321, and can also be directly obtained.
  • the average of these indicators is used as indicator S, or the indicator S is calculated in other appropriate ways.
  • This processing can be performed by the first information acquiring unit 101, 122 or 222 described above.
  • step S206 based on the indicator of the degree of interference of the user terminal 341a that is interfered with by the home base station 320 acquired in step S205, the calculation is based on the public. - an interference indicator I of an example of the second information of the embodiment.
  • an interference indicator I of an example of the second information of the embodiment.
  • 341a provides an index indicating the degree of interference of each user terminal 341a.
  • the weighted sum of these indicators can be obtained as the index I based on the importance of each user terminal 341a, or the average value of these indicators can be directly obtained as the index I. , or use other appropriate methods to calculate indicator I.
  • This processing can be performed by the aforementioned second information acquiring unit 102, 132 or 232.
  • step S207 the signal indicator S and the predetermined signal indicator S Q are compared. If S ⁇ S 0 , the parameter in the parameter table in which the quasi-blank sub-frame has a larger silent ratio and a smaller power reduction amount is selected in step S208.
  • the quasi-blank subframe transmitted by the home base station 320 is configured to improve the total throughput of the home base station 320.
  • the list of parameters in FIG. 2 is taken as an example. In the parameter pair list shown in Fig. 2, as described above, the parameter pair having a smaller silence ratio and a larger power reduction amount makes the edge performance of the macro base station 340 better and the total throughput of the home base station 320 is smaller. .
  • step S207 the interference indicator I and the predetermined interference indicator I are compared. , if I > I. Then, in step S208, a parameter pair of a quasi-blank sub-frame in the parameter table with a smaller silence ratio and a larger power reduction amount is selected to configure the quasi-blank sub-frame transmitted by the home base station 320 to improve the edge performance of the macro base station 340.
  • steps S207 and S208 can be performed by the aforementioned configuration unit 103, 123 or 233.
  • step S208 After completing step S208, the process can proceed to the next cycle.
  • the signal indicator S may not be performed when the amount of change of the signal indicator S is less than a predetermined threshold (for example, less than 5%). Compared with the predetermined signal index S Q , the quasi-blank sub-frame silence ratio and - - Power reduction. Similarly, when the amount of change of the interference indicator I is less than a predetermined threshold, for example, less than 5%, the interference indicator I and the predetermined interference indicator I may not be performed. Contrast, without adjusting the quasi-blank sub-frame silence ratio and power reduction.
  • a predetermined threshold for example, less than 5%
  • the interference index I and the predetermined interference index I may be set when the amount of change of the interference indicator I or the signal indicator S is less than a predetermined threshold for a predetermined number of times (for example, five times). The contrast or the comparison of the signal indicator S with the predetermined signal index S Q .
  • FIG. 9 illustrates another example in accordance with an embodiment of the present disclosure.
  • the macro base station 420 and the pico base stations 430, 440 coexist.
  • the macro base station 420 acts as an interfering base station and interferes with the user terminals 431a, 431b, 441a, 441b of the pico base stations 430, 440.
  • the macro base station 420 provides services for the user terminal 421
  • the pico base station 430 provides services for the user terminals 431a, 431b
  • the micro station 440 provides services for the user terminals 441a, 441b.
  • the pico base stations 430, 440 and the macro base station 420 both adopt an open user access mode, in the edge region of the pico base stations 430, 440, the macro base station 420 will be the user terminal 431a and the pico base station 440 of the micro station 430.
  • the user terminal 441a generates interference.
  • the solid line with an arrow indicates that the base station provides service to the user terminal, and the dotted line with an arrow indicates that the base station has caused interference to the user terminal.
  • the macro base station 420 transmits the subframes in a design pattern 422 with a quasi-blank subframe to improve the edge performance of the pico base stations 430, 440.
  • the pico base stations 430, 440 transmit the subframes without the quasi-blank subframes in the design patterns 432, 442, respectively.
  • the power of the subframe is schematically represented by the height of the subframe.
  • the macro base station 420 transmits 4 quasi-blank subframes every time a normal subframe is transmitted.
  • the silence ratio and power reduction amount of the macro base station 420 transmitting the quasi-blank subframe may be a ⁇ : pair in the list of FIG.
  • the apparatus 10 of FIG. 1 can be included in a macro base station. - -
  • the macro base station 420 as an interfering base station includes a first information acquiring unit 122 and a configuration unit 123, and the micro station 430 and/or 440 includes a second information acquiring unit 132, which may also be as shown in FIG.
  • the macro base station 420 as an interfering base station includes a first information acquiring unit 222, and the pico base station 430 and/or 440 includes a second information acquiring unit 232 and a configuration unit 233.
  • the method of FIG. 8 can be used to periodically configure the method in which the macro base station 420 of the example of FIG. 9 transmits a quasi-blank subframe.
  • the macro base station 420 is an interfering base station
  • the pico base stations 430, 440 are base stations serving the user terminals interfered by the macro base station 420.
  • embodiments of the present disclosure may be directed to wireless communication heterogeneous interference to user terminals served by one or more base stations.
  • the network is implemented.
  • the quasi-blank subframe of the interfering base station can be configured based on the information detected by the victim user terminal that is not served by the base station.
  • the respective constituent units and constituent devices and the like in the above-described apparatus, network, or base station may be configured by software, firmware, hardware, or any combination thereof.
  • a program constituting the software or firmware may be installed from a storage medium or a network to a machine having a dedicated hardware structure (for example, the general-purpose machine 700 shown in FIG. 10), which is installed in various kinds.
  • a dedicated hardware structure for example, the general-purpose machine 700 shown in FIG. 10
  • a central processing unit (CPU) 701 executes various processes in accordance with a program stored in a read only memory (ROM) 702 or a program loaded from a storage portion 708 to a random access memory (RAM) 703.
  • ROM read only memory
  • RAM random access memory
  • data required when the CPU 701 executes various processes and the like is also stored as needed.
  • the CPU 70K ROM 702 and the RAM 703 are connected to each other via a bus 704.
  • Input/output interface 705 is also coupled to bus 704.
  • the following components are also connected to the input/output interface 705: an input portion 706 (including, mouse, etc.), an output portion 707 (including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.)
  • the storage portion 708 (including a hard disk or the like), the communication portion 709 (including a network interface card such as a local area network (LAN) card, a modem, etc.).
  • the communication section 709 performs communication processing via a network such as the Internet.
  • the driver 710 can also be connected to the input/output interface 705 as needed.
  • Removable medium 711 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor storage
  • a device or the like can be installed on the drive 710 as needed, so that the computer program read therefrom can be installed into the storage portion 708 as needed.
  • a program constituting the software can be installed from a network such as the Internet or from a storage medium such as the removable medium 711.
  • such a storage medium is not limited to the removable medium 711 shown in FIG. 10 in which a program is stored and distributed separately from the device to provide a program to the user.
  • the removable medium 711 include a magnetic disk (including a floppy disk), an optical disk (including a compact disk read only memory (CD-ROM) and a digital versatile disk (DVD)), a magneto-optical disk (including a mini disk (MD)), and a semiconductor memory.
  • the storage medium shield may be a ROM 702, a hard disk included in the storage portion 708, etc., in which programs are stored and distributed to the user together with the device containing them.
  • the present disclosure also proposes a program product for storing an instruction code readable by a machine.
  • the instruction code is read and executed by a machine, the above-described processing method according to an embodiment of the present invention can be performed.
  • various storage media such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, and the like for carrying such a program product are also included in the technical solution.
  • constituent units or constituent devices of the apparatus, the network, and the base station according to the embodiment of the present invention may be independent components, or may be implemented by one component to implement the functions of a plurality of constituent units or constituent devices.
  • the present disclosure not only discloses an apparatus for configuring a quasi-blank subframe in a wireless communication heterogeneous network, a wireless communication heterogeneous network, a method for configuring a quasi-blank sub-frame in a wireless communication heterogeneous network, and A base station including means for configuring a quasi-blank subframe in a wireless communication heterogeneous network is also disclosed in terms of a program for executing the method and a storage medium storing the program.

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Abstract

本公开涉及用于配置准空白子帧的装置和方法及无线通信异构网络。该装置包括:获取第一信息的第一信息获取单元,第一信息与表明干扰基站所服务的用户终端的通信质量的指标相关;获取第二信息的第二信息获取单元,第二信息与表明受到干扰基站干扰的用户终端的受干扰程度的指标相关;配置单元,其基于第一信息和第二信息,通过调整准空白子帧静默比例和功率降低量中的至少之一来配置干扰基站发送的准空白子帧。根据本公开的技术方案提高了无线通信异构网络的总体性能。

Description

- - 用于配置准空白子帧的装置和方法及无线通信异构网络 技术领域
[01] 本公开一般地涉及无线通信领域, 尤其涉及一种用于在无线通信异 构网络中配置准空白子帧 (Almost Blank Subframe, ABS )的装置、 无 线通信异构网络、 以及用于在无线通信异构网络中配置准空白子帧的方 法。
背景技术
[02] 在通用移动通信系统 ( Universal Mobile Telecommunications System , UMTS ) 的 长期 演 进的 后 续 演 进 ( Long Term Evolution-Advanced, LTE-A ) 中, 对小区边缘用户的性能提出了更加严 格的要求。 例如, 在 LTE-A系统中宏基站和家庭基站共存场景下, 如果 家扇羞站采用了封闭用户组接入的方式,则使得不在其接入列表内的、 由 宏基站提供服务的边缘用户会受到非常严重的干扰,甚至根本无法得到服 务。准空白子帧技术在此类场景中的应用极大的提高了宏基站的边缘用户 的性能, 现在已经成为 LTE-A干扰协调研究的重点。
[03] 准空白子帧技术在作为干扰源的基站所发射的正常子帧中按照设计 图样来插入准空白子帧。对准空白子帧所进行的配置包括对准空白子帧静 默比例、准空白子帧发射功率降低量和设计图样这三个参数进行配置。在 准空白子帧内,干扰基站的发射功率才艮据所配置的参数来设定为零或其他 预定的降低量,从而减小其对不由干扰基站提供服务而是由受干扰基站提 供服务的边缘用户的干扰, 以提高受干扰基站的边缘性能。
发明内容
[04] 但是, 目前的准空白子帧技术在提高受干扰基站的边缘性能的同时, 也不可避免地造成了干扰基站总吞吐量的损失。目前的准空白子帧技术在 配置准空白子帧的参数时采用了全局配置方案,这导致只能在整体评价的 基础上实现较优的配置, 而并未根据具体情况来配置准空白子帧,进而没 有根据具体情况在受干扰基站的边缘性能和干扰基站的总吞吐量之间进 行均衡。 - -
[05] 因此, 需要提供一种用于在无线通信异构网络中配置准空白子帧的 装置、无线通信异构网络、以及用于在无线通信异构网络中配置准空白子 帧的方法, 以根据具体情况来配置准空白子帧,进而根据具体情况在受干 扰基站的边缘性能和干扰基站的总吞吐量之间进行均衡,从而提高无线通 信异构网络的总体性能。
[06] 根据本公开的实施例, 提供了一种用于在无线通信异构网络中配置 准空白子帧的装置, 其包括: 第一信息获取单元, 其被配置为获取第一信 息, 第一信息与表明干扰基站所服务的用户终端的通信质量的指标相关; 第二信息获取单元,其被配置为获取第二信息,第二信息与表明受到干扰 基站干扰的用户终端的受干扰程度的指标相关; 以及配置单元,其被配置 为基于第一信息和第二信息,通过调整准空白子帧静默比例和功率降低量 中的至少之一来配置干扰基站发送的准空白子帧。
[07] 根据本公开的另一实施例, 还提供了一种无线通信异构网络, 其包 括: 包括第一信息获取单元和配置单元的第一基站、 以及包括第二信息获 取单元的第二基站。第一信息获取单元被配置为获取第一信息, 第一信息 与表明第一基站所服务的用户终端的通信质量的指标相关。第二信息获取 单元被配置为获取第二信息,第二信息与表明第二基站所服务的用户终端 受第一基站干扰程度的指标相关。配置单元被配置为基于第一信息和第二 信息,通过调整准空白子帧静默比例和功率降低量中的至少之一来配置第 一基站发送的准空白子帧。
[08] 根据本公开的又一实施例, 还提供了一种无线通信异构网络, 其包 括: 包括第一信息获取单元的第一基站、 以及包括第二信息获取单元和配 置单元的第二基站。第一信息获取单元被配置为获取第一信息, 第一信息 与表明第一基站所服务的用户终端的通信质量的指标相关。第二信息获取 单元被配置为获取第二信息,第二信息与表明第二基站所服务的用户终端 受第一基站干扰程度的指标相关。配置单元被配置为基于第一信息和第二 信息,通过调整准空白子帧静默比例和功率降低量中的至少之一来配置第 一基站发送的准空白子帧。
[09] 根据本公开的再一实施例, 还提供了一种用于在无线通信异构网络 中配置准空白子帧的方法, 其包括: 获取第一信息, 第一信息与表明干扰 基站所服务的用户终端的通信质量的指标相关; 获取第二信息, 第二信息 与表明受到干扰基站干扰的用户终端的受干扰程度的指标相关;以及基于 第一信息和第二信息,通过调整准空白子帧静默比例和功率降低量中的至 少之一来配置干扰基站发送的准空白子帧。
[10] 根据本公开的另一实施例, 还提供了一种程序, 其使得运行该程序 的计算机执行以下步骤: 获取第一信息, 第一信息与表明干扰基站所服务 的用户终端的通信质量的指标相关; 获取第二信息, 第二信息与表明受到 干扰基站干扰的用户终端的受干扰程度的指标相关;以及基于第一信息和 第二信息,通过调整准空白子帧静默比例和功率降低量中的至少之一来配 置干扰基站发送的准空白子帧。
[11] 根据本公开的实施例, 还提供了相应的计算机可读存储介盾, 该计 算机可读存储介质上存储有能够由计算设备执行的程序,所述程序在执行 时能够使所述计算设备执行上述处理方法。
[12] 根据本公开的实施例所提供的用于在无线通信异构网络中配置准空 白子帧的装置、无线通信异构网络、以及用于在无线通信异构网络中配置 准空白子帧的方法,可以根据具体情况来配置准空白子帧, 兼顾干扰基站 所服务的用户终端以及被干扰基站干扰的用户终端的性能从而提高无线 通信异构网络的总体性能。
附图说明
[13] 图 1是示出了根据本公开的实施例的、 用于在无线通信异构网络中 配置准空白子帧的装置的示例的示意图;
[14] 图 2是示出了根据 开的实施例的、 包括准空白子帧静默比例和 功率降低量的预定参数对的参数表的示例的示意图;
[15] 图 3是示出了根据 开的实施例的、 包括准空白子帧静默比例和 功率降低量的预定参数对的另一参数表的示例的示意图;
[16] 图 4是示出了根据本公开的实施例的无线通信异构网络的示例的示 意图;
[17] 图 5是示出了根据 开的实施例的另一无线通信异构网络的示例 的示意图
[18] 图 6是示出了根据 开的实施例的、 用于在无线通信异构网络中 配置准空白子帧的方法的流程图; 并且
[19] 图 7是示出了 ^开的实施例的具体应用示例的示意图; - -
[20] 图 8是示出了用来配置图 7的示例中干拔基站的准空白子帧的示意 图;
[21] 图 9是示出了 ^开的实施例的另一具体应用示例的示意图; 并且 [22] 图 10是示出了根据^开的实施例的硬件配置的示例的示意图。
具体实施方式
[23] 以下,将结合附图来描述本公开的优选实施例,使得本公开的前述特 征和优点以及其他特征和优点变得更加明显。
[24] 下文中的描述将按照如下顺序来进行:
1. 用于在无线通信异构网络中配置准空白子帧的装置
2. 无线通信异构网络
3. 用于在无线通信异构网络中配置准空白子帧的方法
4. 具体示例
5.硬件配置示例
1. 用于在无线通信异构网络中配置准空白子帧的装置
[25] 图 1示出了根据 开的实施例的、用于在无线通信异构网络中配置 准空白子帧的装置 10。 装置 10包括第一信息获取单元 101、 第二信息获 取单元 102以及配置单元 103。
[26] 此外, 图 1中还示出了干 4¾站 20及其所服务的用户终端 21、 受干 扰的用户终端 31以及向受干扰的用户终端 31提供服务的基站 30。 干扰 基站 20和向受干扰的用户终端 31提供服务的基站 30构成了无线通信异 构网络。 此处的 "异构网络"指的是网络中包括不同类型的基站, 这些基 站可以 基站、 家庭基站、微微(Pico )基站或者其他适当类型的基站。
[27]要注意的是, 干扰基站 20所服务的用户终端 21可以是一个或多个, 这里统称为用户终端 21。 类似地, 受干扰的用户终端 31也可以是一个或 多个, 这里统称为用户终端 31。 用户终端可以是移动电话、 笔记本计算 机、 桌上型个人计算机或者其他适当类型的具有通信功能的用户终端。
[28] 第一信息获取单元 101被配置为获取第一信息,第一信息与表明用户 - - 终端 21的通信质量的指标相关,例如可以是与表明用户终端 21的通信质 量的指标本身或者基于该指标得到的值。
[29] 第二信息获取单元 102被配置为获取第二信息,第二信息与表明用户 终端 31的受干扰程度的指标相关,例如可以是与表明用户终端 31的受干 扰程度的指标相关本身或者基于该指标得到的值。
[30] 配置单元 103被配置为基于第一信息和第二信息,通过调整准空白子 帧静默比例和功率降低量中的至少之一来配置干扰基站 20发送的准空白 子帧。
[31] 本领域普通技术人员应该理解,装置 10可以独立于干扰基站 20和基 站 30来设置, 也可以设置在干扰基站 20或者基站 30内部, 还可以将装 置 10的一部分单元设置在干扰基站 20中, 另一部分单元设置在基站 30 中。 此外, 还可以将装置 10全部设置在干扰基站 20中, 其中第二信息获 取单元 102通过干扰基站 20与基站 30之间诸如通过 X2接口进行的通信 来获取第二信息。 另一种可行的方式是, 将装置 10全部设置在基站 30 中,其中第一信息获取单元 101通过干扰基站 20与基站 30之间诸如通过 X2接口进行的通信来获取第一信息,配置单元 103通过干扰基站 20与基 站 30之间诸如通过 X2接口进行的通信来对干扰基站 20发送准空白子帧 进行配置。 因此, 根据^开的实施例, 还公开了包括有装置 10的基站。
[32] 优选地,表明用户终端 21的通信质量的指标可以与用户终端 21在接 收干扰基站 20 的信号时的参考信号接收功率(RSRP )、 通信质量指标 ( CQI )、基于信道状态信息的参考信号接收功率( CSI-RSRP )以及链路 的耦合损耗中的至少一项相关。 换言之, 该指标可以仅仅与用户终端 21 在接收干扰基站 20的信号时的参考信号接收功率、 通信质量指标、 基于 信道状态信息的参考信号接收功率以及链路的耦合损耗中的一项相关,也 可以与其中的任意多项相关, 例如, 可以是多项参数的加权和。
[33]要注意的是,在 3GPP版本 10之前的版本中,表明用户终端 21的通 信质量的指标可以与参考信号接收功率相关,这里的参考信号例如可以是 小区专用参考信号(CRS )。 但是, 由于使用针对小区专用参考信号的接 收功率在 3GPP版本 10及以后的版本中,以及在新载波类型( New Carrier Type )中无法满足异构网络场景下的信道测量, 因此在这些场景下,表明 用户终端 21的通信质量的指标可以与基于信道状态信息的参考信号接收 功率相关。 - -
[34] 本领域普通技术人员应该理解, 表明用户终端 21的通信质量的指标 还可以与其他适当的 相关。
[35] 此外,表明用户终端 21的通信质量的指标可以由用户终端 21测量并 且提供给干扰基站 20。 干扰基站 20将与该指标相关的第一信息提供给配 置单元 103。 特别地, 当配置单元 103被设置在基站 30中时, 干扰基站 20通过基站之间诸如通过 X2接口进行的通信来将第一信息提供给配置单 元 103。
[36] 本领域普通技术人员应该理解, 表明用户终端 21的通信质量的指标 也可以通过其他方式来测量, 例如通过干扰基站 20来测量。
[37] 优选地, 表明用户终端 31 的受干扰程度的指标可以与用户终端 31 在接收干扰基站 20的信号时的参考信号接收功率、 通信质量指标、 基于 信道状态信息的参考信号接收功率以及链路的耦合损耗中的至少一项相 关。换言之,该指标可以仅仅与用户终端 31在接收干扰基站 20的信号时 的参考信号接收功率、通信质量指标、基于信道状态信息的参考信号接收 功率以及链路的耦合损耗中的一项相关, 也可以与其中的任意多项相关, 例如, 可以是多项参数的加权和。
[38] 如上所述,在 3GPP版本 10之前的版本中,表明用户终端 31的受干 扰程度的指标可以与参考信号接收功率相关。 在 3GPP版本 10及以后的 版本中, 以及在新载波类型 (New Carrier Type ) 中, 表明用户终端 31 的受干扰程度的指标可以与基于信道状态信息的参考信号接收功率相关。
[39] 本领域普通技术人员应该理解, 表明用户终端 31的受干扰程度的指 标还可以与其他适当的参数相关。
[40] 此外,表明用户终端 31的受干扰程度的指标可以由用户终端 31测量 并提供给基站 30ο 基站 30将与该指标相关的第二信息提供给配置单元 103。 特别地, 当配置单元 103被设置在干扰基站 20中时, 基站 30通过 基站之间通过诸如 Χ2接口进行的通信来将第二信息提供给配置单元 103。
[41] 本领域普通技术人员应该理解, 表明用户终端 31的受干扰程度的指 标也可以通过其他方式来测量, 例如通过基站 30来测量。
[42] 优选地,配置单元 103可以进一步被配置为通过在包括准空白子帧静 默比例和功率降低量的预定参数对的参数表中进行选择来配置干扰基站 20发送的准空白子帧。
[43] 具体地,在准空白子帧的功率降低量不变的情况下, 当提高准空白子 - - 帧静默比例时, 干扰基站 20的总吞吐量降低而收到干扰基站 20干扰的、 由基站 30提供服务的边缘用户的性能(即, 基站 30的边缘性能)提高, 反之亦然。 此外, 在准空白子帧静默比例不变的情况下, 当提高准空白子 帧的功率降低量时,干扰基站 20的总吞吐量降低而基站 30的边缘性能提 高, 反之亦然。
[44] 通过适当地设置准空白子帧静默比例和功率降低量的预定参数对,可 以对干扰基站 20的总吞吐量和基站 30的边缘性能进行配置,以提高无线 通信异构网络的总体性能。
[45] 配置单元 103也可以用其他方式来配置干扰基站 20发送的准空白子 帧,例如在不改变准空白子帧静默比例和功率降低量中的一个量的同时改 变另一个量, 即调整空白子帧静默比例和功率降低量中任一者。
[46] 图 2和图 3中示出了包括准空白子帧静默比例和功率降低量的预定参 数对的参数表的两个示例。
[47] 在图 2所示的^ ^中,示意性地示出了 8对参数,其中静默比例越 高, 功率降低量越小, 反之, 静默比例越低, 功率降低量越大。 当静默比 例是 100%时, 准空白子帧的功率降低量为 0,此时干扰基站 20所发送的 全部是准空白子帧, 不发送正常子帧, 因此不向用户终端 21提供服务。 当静默比例是 12.5%时, 准空白子帧的功率降低为 0 (即图 2的表格中第 一行最右边的 "零功率";)。 当干 4½站 20发送的准空白子帧的功率降低 为 0时,干扰基站 20所发送的该准空白子帧基本上不会干扰基站 30在相 同时间段内发送的子帧,从而可以在准空白子帧静默比例不变的情况下更 好地提高基站 30的边缘性能。
[48] 本领域普通技术人员应该理解,实际应用中的参数表可以根据设计需 要, 包括其他数目的参数对。
[49]要注意的是,在图 2中所示的参数对中,将静默比例和功率降低量所 组成的参数对设置为采用静默比例更小并且功率降低量更大的参数对会 使得基站 30的边缘性能更好而干扰基站 20的总吞吐量更小。然而,本领 域普通技术人员也可以根据具体网络场景适当地设置包括准空白子帧静 默比例和功率降低量的预定参数对。例如设置成两个静默比例相差很大的 对之间的功率降低量相差很小,从而使得在一些网络场景下采用静默 比例更小并且功率降低量稍大的参数对会使得基站 30的边缘性能稍差而 干扰基站 20的总吞吐量更大。此外,在需要使得干扰基站 20的总吞吐量 - - 和基站 30的边缘性能在较大范围内变化的情况下, 还可以将参数对设置 为使得参数对中的静默比例越大功率降低量越大,从而静默比例更大并且 功率降低量更大的参数对可以较大程度地提高基站 30的边缘性能并且降 低干扰基站 20的总吞吐量。
[50] 在图 3所示的参数表中,示意性地示出了 8对参数,其中与图 2相似 地, 静默比例越高, 功率降低量越小, 反之, 静默比例越低, 功率降低量 越大。 当静默比例是 80%时, 准空白子帧的功率降低量为 0。 当静默比例 是 10%时, 准空白子帧的功率降低为 0 (即图 2的表格中第一行最右边的 "零功率" )。 图 3所示的参! ^可以应用于例如干扰基站 20是宏基站而 基站 30是微微基站(Pico )的场景。 在该场景中, 宏基站发送准空白子 帧的比例不能达到 100% , 否则作为异构网络的主要服务基站的宏基站无 法正常工作。本领域普通技术人员还可以根据其他的应用场景的特点、尤 其是干扰基站的类型 M目应地设置参数对。换言之,上述预定的参数对是 根据干扰基站的类型来确定的。
[51] 优选地,可以将配置单元 103配置为,将第一信息与第二信息分别与 包含用户终端 21的通信质量的下限的第一基准范围以及包含用户终端 31 的受干扰程度的上限的第二基准范围进行比较,并且以使得第一信息和第 二信息分别处于第一基准范围以及第二基准范围中的方式,根据第一信息 与第一基准范围的比较结果和第二信息与第二基准范围的比较结果来配 置干扰基站 20发送的准空白子帧。
[52] 此外, 还可以将配置单元 103配置为才艮据表明用户终端 21和用户终 端 31的特性的指标来调整第一基准范围和第二基准范围, 从而根据第一 信息与基准范围的比较结果和第二信息与基准范围的比较结果来配置干 扰基站发送的准空白子帧。
[53] 换言之,可以为第一信息和第二信息分别设定第一基准范围和第二基 准范围,通过对准空白子帧进行配置来使得第一信息和第二信息分别保持 在第一基准范围和第二基准范围内,从而使得对准空白子帧的配置可以根 据具体情况来进行。第一基准范围和第二基准范围可以根据表明用户终端 21和用户终端 31的特性的指标来调整, 从而使得可以根据具体情况在干 扰基站 20的总吞吐量和基站 30的边缘性能之间进行权衡。此外,该基准 范围也可以根据其他适当的指标来调整, 或者被设置为固定的基准范围。
[54] 不仅可以针对第一信息和第二信息分别设定第一基准范围和第二基 准范围,也可以针对与第一信息和第二信息相关的量设定一个共同的基准 - - 范围,例如,针对第一信息和第二信息的加权和设定一个共同的基准范围。
[55] 此外,在根据上述指标调整基准范围时,既可以才艮据上述指标分别调 整用于第一信息的基准范围和用于第二信息的基准范围,也可以根据上述 指标调整用于第一信息和第二信息两者的基准范围。
[56] 对于本领域普通技术人员而言,也可以通过为第一信息和第二信息设 定基准范围之外的其他适当方式,基于第一信息、第二信息以 ^明用户 终端 21和用户终端 31的特性的指标,对准空白子帧进行配置, 以实现根 据具体情况在干扰基站 20的总吞吐量和基站 30的边缘性能之间进行权 衡。 例如, 可以为第一信息、 第二信息和表明用户终端 21和用户终端 31 的特性的指标的加权和设定一个基准范围,并且以使得该加权和保持在该 基准范围内的方式来配置准空白子帧。
[57] 表明用户终端 21和用户终端 31的特性的指标与用户终端 21的数量、 用户终端 31的数量、 用户终端 21的业务量、 用户终端 31的业务量中的 至少一项相关。换言之,表明用户终端 21和用户终端 31的特性的指标可 以仅仅与用户终端 21的数量、 用户终端 31的数量、 用户终端 21的业务 量、用户终端 31的业务量中的一项相关,也可以与其中的任意多项相关。 稍后将给出表明用户终端 21和用户终端 31的特性的指标的具体示例。
[58] 配置单元 103通过该指标来确定如何在基站 30的边缘性能和干扰基 站 20的总吞吐量之间进行权衡。 换言之, 配置单元 103通过该指标来确 定如何配置干扰基站 20的准空白子帧, 以实现根据具体情况在干扰基站 20的总吞吐量和基站 30的边缘性能之间进行权衡。
[59] 例如, 该指标可以与用户终端 21 的数量相关, 并且在用户终端 21 的数量更多时, 更多地考虑干扰基站 20 的总吞吐量来配置干扰基站 20 的准空白子帧。 该指标也可以与用户终端 31的数量相关, 并且在用户终 端 31的数量更多时, 更多地考虑基站 30的边缘性能来配置干扰基站 20 的准空白子帧。
[60] 该指标还可以与用户终端 21和用户终端 31的数量之间的关系相关, 即, 与用户终端 21的数量和用户终端 31的数量这两项都相关。 例如, 在 用户终端 31与用户终端 21的数量之比增加时, 更多地考虑基站 30的边 缘性能来配置干扰基站 20的准空白子帧。
[61] 换言之,在表明用户终端 31和用户终端 21的特性的指标与用户终端 31的数量和用户终端 21的数量之间的比值正相关的情况下, 可以将配置 - - 单元 103配置为当该指标增加时, 使得第一基准范围中用户终端 21的通 信质量的下限降低, 并且使得第二基准范围中所包括的用户终端 31的受 干扰程度的上限降低。
[62] 类似地, 该指标可以与用户终端 21的业务量相关, 并且在用户终端 21的业务量更多时, 更多地考虑总吞吐量来配置干扰基站 20的准空白子 帧。该指标也可以与用户终端 31的业务量相关, 并且在用户终端 31的业 务量更多时,更多地考虑基站 30的边缘性能来配置干扰基站 20的准空白 子帧。
[63] 该指标还可以与用户终端 21和用户终端 31的业务量之间的关系相 关, 即, 与用户终端 21的业务量和用户终端 31的业务量这两项都相关。 例如,在用户终端 31与用户终端 21的业务量之比更大时, 更多地考虑基 站 30的边缘性能来配置干扰基站 20的准空白子帧。
[64] 换言之,在表明用户终端 21和用户终端 31的特性的指标与用户终端 31的业务量和用户终端 21的业务量之间的比值正相关的情况下, 可以将 配置单元 103配置为当该指标增加时,使得第一基准范围中所包括的用户 终端 21的通信质量的下限降低, 并且使得第二基准范围中所包括的用户 终端 31的受干扰程度的上限降低。
[65] 当然, 该指标还可以与用户终端 21的数量、 用户终端 31的数量、 用 户终端 21的业务量、用户终端 31的业务量这四项都相关,例如该指标可 以是用户终端 21与用户终端 31的数量之比与用户终端 21与用户终端 31 的业务量之比的加权和。
[66] 本领域普通技术人员应该可以理解,该指标还可以按照其他适当的方 式来与用户终端 21的数量、用户终端 31的数量、用户终端 21的业务量、 用户终端 31的业务量中的至少一项相关, 以便于通过该指标来实现根据 具体情况在干扰基站 20的总吞吐量和基站 30的边缘性能之间进行权衡。
[67] 此外, 该指标也可以与其他适当的、 能够表明用户终端 21和用户终 端 31的特性的量相关, 例如与用户终端 21和用户终端 31的重要性或者 优先^目关, 从而通过该指标来实现根据具体情况在干扰基站 20的总吞 吐量和基站 30的边缘性能之间进行权衡。
[68] 在配置单元 103被设置在基站 30中时, 配置单元 103通过基站之间 通过诸如 X2接口进行的通信来将与配置方案相关的信息提供给干扰基站 20, 例如, 将所选择的参数对的具体数值提供给干扰基站 20, 或者在干 - - 扰基站 20 自身存储有参数对的列表的情况下, 将所选择的参数对的编号 提供给干扰基站 20。 此外, 还可以在干扰基站 20自身存储有参数对的列 表(例如图 2中所示的列表)的情况下, 将所选择的参数对相对于干扰基 站 20当前所使用的参数对的相对位置发送给干扰基站 20, 例如, 发送表 明要将参数对向功率降低量较大并且静默比例较小的方向移动一个位置 的信息。
[69] 对于准空白子帧的配置可以周期地进行, 也可以其他适当方式来进 行,例如根据事件触发来进行。一种可能的根据事件触发来进行的场景是, 当干扰基站 20检测到用户终端 21的数量或者业务量出现的变化满足预定 条件时, 对准空白子帧进行重新配置。
[70] 在周期性地根据第一信息的变化量来调整准空白子帧静默比例和功 率降低量时, 为了避免出现 "乒乓效应" (即, 在朝第一方向调整准空白 子帧的上述参数后由于第一信息或第二信息的相应改变,又需要朝与第一 方向相反的第二方向再次调整准空白子帧的上述参数,此后由于第一信息 或第二信息的相应改变,再次需要朝向第一方向调整准空白子帧的上述参 数,该过程有可能循环多次),可以在第一信息的变化量小于预定阈值时, 不调整准空白子帧静默比例和功率降低量。
[71] 类似地,在周期性地根据第二信息的变化量来调整准空白子帧静默比 例和功率降低量时, 为了避免出现 "乒乓效应", 可以在第二信息的变化 量小于预定阈值时, 不调整准空白子帧静默比例和功率降低量。
[72]要注意, 这里为第一信息和第二信息所设定的预定阈值可以是相同 的, 也可以是不同的。 此外, 既可以针对第一信息和第二信息的相对变化 量设定阈值, 也可以针对第一信息和第二信息的绝对变化量设定阈值。
[73] 本领域普通技术人员也可以采取其他方式,降低触发准空白子帧重新 配置的灵敏度, 从而避免 "乒乓效应"。 例如, 可以使得在朝一个方向调 整准空白子帧的上述参数时的灵敏度不同于朝另一个方向调整准空白子 帧的上述参数时的灵敏度, 从而避免上述参数的反复调整。
2. 无线通信异构网络
[74] 图 4示出了根据 开的实施例的无线通信异构网络 100。如图 2所 示, 网络 100包括第一基站 120和第二基站 130。 第一基站 120包括第一 信息获取单元 122和配置单元 123。 第二基站 130包括第二信息获取单元 - -
132。 在系统 100中, 第一基站 120是干 4½站, 第一基站 120所服务的 用户终端统称为用户终端 121 , 第二基站 130所服务的并且受到第一基站 120干扰的用户终端统称为用户终端 131。 与图 1中的示例相类似地, 用 户终端 121和用户终端 131分别可以是一个或多个用户终端。
[75] 第一信息获取单元 122被配置为获取第一信息,第一信息与表明用户 终端 121的通信质量的指标相关。
[76] 第二信息获取单元 132被配置为获取第二信息,第二信息与表明用户 终端 131受第一基站 120干扰程度的指标相关。
[77] 配置单元 123被配置为基于第一信息和第二信息,通过调整准空白子 帧静默比例和功率降低量中的至少之一来配置第一基站 120发送的准空 白子帧。
[78] 第一基站 120可以是家½站,此时第二基站 130可以 基站。第 一基站 120也可以是宏基站,此时第二基站 130可以是微微基站。第二基 站 130可以通过 X2接口来向第一基站 120提供第二信息。
[79] 图 5示出了根据 开的实施例的无线通信异构网络 200。如图 3所 示, 网络 200包括第一基站 220和第二基站 230ο 第一基站 220包括第一 信息获取单元 222。 第二基站 230包括第二信息获取单元 232和配置单元 233ο 在系统 200中, 第一基站 220是干 ½站, 第一基站 220所服务的 用户终端统称为用户终端 221 , 第二基站 230所服务的并且受到第一基站 220干扰的用户终端统称为用户终端 231。 与图 1和图 4中的示例相类似 地, 用户终端 221和用户终端 231分别可以是一个或多个用户终端。
[80] 第一信息获取单元 222被配置为获取第一信息,第一信息与表明用户 终端 221的通信质量的指标相关。
[81] 第二信息获取单元 232被配置为获取第二信息,第二信息与表明用户 终端 231受第一基站 220干扰程度的指标相关。
[82] 配置单元 233被配置为基于第一信息和第二信息,通过调整准空白子 帧静默比例和功率降低量中的至少之一来配置第一基站 220发送的准空 白子帧。
[83] 如果第一基站 220是家庭基站,第二基站 230 基站,则第二基站 230可以通过 Χ2接口来向第一基站 220提供第二信息,并且第二基站 230 的配置单元 233可以通过 Χ2接口来对第一基站 220发送的准空白子帧进 行配置。 - -
[84] 如果第一基站 220是宏基站,第二基站 230是 站,则第二基站 230可以通过 X2接口来向第一基站 220提供第二信息,并且第二基站 230 的配置单元 233可以通过 X2接口来对第一基站 220发送的准空白子帧进 行配置。
3. 用于在无线通信异构网络中配置准空白子帧的方法
[85] 图 6示出了根据 开的实施例的、用于在无线通信异构网络中配置 准空白子帧的方法。
[86] 上述方法在步骤 S102处开始。
[87] 在步骤 S104中, 获取第一信息, 第一信息与表明干扰基站所服务的 用户终端的通信质量的指标相关。 该步骤例如可以由第一信息获取单元 101、 122或 222来执行。
[88] 在步骤 S106中, 获取第二信息, 第二信息与表明受到干扰基站干扰 的用户终端的受干扰程度的指标相关。该步骤例如可以由第二信息获取单 元 102、 132或 232来执行。
[89] 在步骤 S108中, 基于第一信息和第二信息, 通过调整准空白子帧静 默比例和功率降低量中的至少之一来配置干扰基站发送的准空白子帧。该 步骤例如可以由配置单元 103、 123或 233来执行。
[90] 随后, 在步骤 S110处, 处理结束。
[91]要注意的是, 步骤 S104不必须在步骤 S106之前执行, 也可以先执 行步骤 S106后执行步骤 S104,还可以使得步骤 S104和步骤 S106并行地 执行。
4. 具体示例
[92] 以下,通过更加具体的示例来详细描述本公开的实施例的一种具体实 施方式。
[93] 图 7示出了家庭基站 320、 330与宏基站 340共存的场景。 在该场景 中, M"封闭的用户列表中的用户服务的家庭基站 320、 330作为干扰基 站, 对宏基站 340的用户终端 341形成了干扰。
[94] 本领域普通技术人员应该理解, 不同的基站有可能彼此干扰, 例如, - - 一种可能的情况是,宏基站 340对家庭基站 320或 330形成了干扰。本领 域普通技术人员可以才艮据实际情况,选择使用发送准空白子帧的方式来抑 制基站之间的干扰。
[95] 通过以下针对图 7所示出的示例进行的描述,本领域普通技术人员应 该认识到, ^^开的实施例可以针对包括一个或多个干扰基站的无线通信 异构网络来实施。 其中, 针对各个干扰基站, 可以对所有干扰基站的准空 白子帧按照根据本公开的实施例的方法来分别进行配置,也可以仅对其中 一个或多个干扰基站的准空白子帧按照根据本公开的实施例的方法来分 别进行配置。
[96] 宏基站 340为多个用户终端 341提供服务,用户终端 341包括用户终 端 341a和用户终端 341b, 其中用户终端 341a的位置靠近家庭基站 320 并且不在家庭基站 320的用户列表中, 因此受到了家庭基站 320的干扰, 而用户终端 341b的位置靠近家庭基站 330并且不在家庭基站 330的用户 列表中, 因此受到了家庭基站 330的干扰。
[97]要注意的是, 尽管图 7中示出了 1个用户终端 341a和 2个用户终端 341b,但是本领域普通技术人员应该理解,受干扰的用户终端 341a和 341b 均可以是一个或多个用户终端。
[98] 家庭基站 320为在其用户列表中的用户终端 321提供服务,家庭基站 330为在其用户列表中的用户终端 331提供服务。 本领域普通技术人员应 该理解, 用户终端 321和 331各自可以是一个或多个用户终端。
[99] 在图 7中, 为了清 ¾^见,用带有箭头的实线表示基站对用户终端提 供服务, 用带有箭头的虛线表示基站对用户终端造成了干扰。
[100]本领域普通技术人员应该理解, 图 1中的装置 10可以包括在宏基站 340中,也可以包括在家庭基站 320或 330中。此外,可以如图 4中所示, 作为干扰基站的家庭基站 320和 /或 330包括第一信息获取单元 122和配 置单元 123, 宏基站 340包括第二信息获取单元 132, 也可以如图 5中所 示, 作为干扰基站的家庭基站 320和 /或 330包括第一信息获取单元 222, 宏基站 340包括第二信息获取单元 232和配置单元 233。
[101]宏基站 340按照设计图样 343来发送子帧, 根据图 7可知, 宏基站 340发送的全部是正常子帧。家 站 320按照设计图样 322来发送子帧, 根据图 7可知, 家庭基站 320每发送 4个正常子帧发送 1个准空白子帧。 家 站 330按照设计图样 332来发送子帧, 根据图 Ί可知, 家庭基站 - -
330每发送 1个正常子帧发送 4个准空白子帧
[102]针对不同的家庭基站,可以使用不同的包括准空白子帧静默比例和功 率降低量的参数对的列表。 例如, 在设计图样 322和 332中, 用子帧的高 度来示意性地表示子帧的功率。根据图 7可知,设计图样 322的准空白子 的帧静默比例低于设计图样 332的准空白子帧, 同时,设计图样 322的准 空白子帧相比于正常子帧的功率降低量小于设计图样 332的准空白子帧。 这表明用于配置家庭基站 320 的准空白子帧的参数对和用于配置家庭基 站 330的准空白子帧的参数对来自于不同的列表, 因为在同一列表中,静 默比例越高, 功率降低量越小。
[103]根据本公开的实施例,家庭基站 320发送准空白子帧的静默比例和功 率降低量以及家庭基站 330发送准空白子帧的静默比例和功率降低量可 以是图 2或图 3的列表中的^:对。
[104]以下,将结合图 8来描述在图 7所示的示例中周期性地配置家庭基站 320发送准空白子帧的方法的一个具体示例。
[105]虽然图 8中所示的方法是针对家扇羞站 320作为干扰基站的情况的, 但是也可以适用于其他基站(例如家庭基站 330 )作为干扰基站的情况。 而且,图 8中所示的方法可以应用其他类型的基站构成无线通信异构网络 的场景中,例如图 9中所示的、宏基站与微微基站共存并且干扰基站 基站的场景。
[106]此外, 虽然图 8中所示的方法是针对周期性地进行配置的,但是也可 以适用于以其他方式进行配置的情况。
[107]在步骤 S201中, 家庭基站 320设定预定信号指标 S。和预定干扰指标 10以及包括用于配置宏基站 330发送准空白子帧的参 ,例如图 2中所 示的参数表。 SQ用于表示家庭基站 320中用户终端 321接》l Ji艮务的性能的 预定下限, 而 I。用于表示宏基站 340中用户终端 341a受家庭基站 320干 扰的程度的预定上限。
[108]在步骤 S202中, 计算家庭基站 320所服务的用户终端 321的总业务 量 T 计算宏基站 340所服务的、 受家庭基站 320干扰的用户 终端 341a 的总业务量7 ^ ^_™, 进而计算受干扰用户的总业务量与非受 干扰用户的总业务量之比作为相对业务量 ^, 参见式 1:
T interfered_ U E
[109] Σ ^non-inte^eredJJE ( 1 ) - -
[110]在步骤 S203中, 如果相对业务量 增大, 说明应该更加重视宏基站 340的边缘性能, 提高对于宏基站 340的边缘性能的要求, 适当降低对于 家庭基站 320的总吞吐量的要求, 因此降低预定信号指标 SQ和预定干扰 指标 I。。
[111]如果相对业务量 减小, 说明应该更加重视家庭基站 320 的总吞吐 量, 提高对于家庭基站 320的总吞吐量的要求, 适当降低对于宏基站 340 的边缘性能的要求, 因此升高预定信号指标 SQ和预定干扰指标 10
[112]预定信号指标 SQ和预定干扰指标 I。的具体降低量和升高量与相对业 务量 之间的关系可以根据特定函数计算得到。例如,一种示例性关联方 式是使得预定信号指标 SQ和预定干扰指标 I。的具体降低量和升高量与相 对业务量 Tr之间线性负相关。
[113]在步骤 S202中, 也可以计算家庭基站 320所服务的用户终端 321的 数量 nl,计算宏基站 340所服务的、受家庭基站 320干扰的用户终端 341a 的数量 n2, 进而计算受干扰用户的数量与非受干扰用户的数量之比作为 相对数量 a。
[114]相应地, 在步骤 S203中, 如果相对数量 a增大, 说明应该更加重视 宏基站 340的边缘性能,提高对于宏基站 340的边缘性能的要求,适当降 低对于家庭基站 320的总吞吐量的要求, 因此降低预定信号指标 S。和预 定干扰指标 I。。
[115]如果相对数量 a减小, 说明应该更加重视家庭基站 320的总吞吐量, 提高对于家庭基站 320的总吞吐量的要求,适当降低对于宏基站 340的边 缘性能的要求, 因此升高预定信号指标 SQ和预定干扰指标 I。。
[116]预定信号指标 SQ和预定干扰指标 I。的具体降低量和升高量与相对数 量 a之间的关系也可以根据特定函数计算得到。例如,一种示例性关联方 式是使得预定信号指标 SQ和预定干扰指标 I。的具体降低量和升高量与相 对数量 a之间线性负相关。
[117]步骤 S201至 S203的处理可以由前述的配置单元 103、 123或者 233 来执行。
[118]在步骤 S204中, 家庭基站 320的每个用户终端 321对接收到的家庭 基站 320的信号进行测量,并向家庭基站 320上报表明家庭基站 320所服 务的用户终端 321的通信质量的指标,该指标可以包括例如接收家庭基站 320的参考信号接收功率(对于 3GPP版本 10之前的系统,可以是 RSRP, - - 对于 3GPP版本 10及以后的系统, 可以是 CSI-RSRP )和通信质量指标。 在 TD-LTE (分时长期演进)系统中, 该指标还可以包括链路耦合损耗参 数。该指标可以被家庭基站 320提供给前述的第一信息获取单元 101、 122 或 222。
[119]此外,表明家庭基站 320所服务的用户终端 321的通信质量的指标还 可以包括例如用户终端 321对于家庭基站 320的参考信号接收功率与用户 终端 321对于所有基站的参考信号接收功率之和的比值。该指标还可以是 其所包括的各项参数的加权和。
[120]在步骤 S205中, 宏基站 340的每个用户终端 341对接收到的所有基 站的信号进行测量, 如果对于某个用户终端 341, 存在针对宏基站 340之 外的基站的参考信号接收功率大于针对宏基站 340 的参考信号接收功率 的某个预设的百分比(例如 50% ),则将该用户终端识别为受到宏基站 340 之夕卜的基站干扰的用户终端。 由此,可以识别出宏基站 340所服务的用户 终端 341中受到家庭基站 320干扰的用户终端 341a、 341b„ 受干扰的用 户终端 341a、 341b均可以是一个或多个用户终端。 所识别的、 受到家庭 基站 320的干扰的用户终端 341a向宏基站 340上^ Λ明用户终端 341a的 受干扰程度的指标,该指标可以包括例如接收家庭基站 320的参考信号接 收功率和通信质量指标。 在 TD-LTE 系统中, 该指标还可以包括链路耦 合损耗参数。 该指标可以被宏基站 340提供给前述的第二信息获取单元 102、 132或 232。
[121]此外, 表明受到家庭基站 320干扰的用户终端 341a的受干扰程度的 指标还可以包括例如用户终端 341a对于家庭基站 320的参考信号接收功 率与用户终端 341a对于所有基站的参考信号接收功率之和的比值。 该指 标还可以是其所包括的各项参数的加权和。
[122]在步骤 S206中, 基于步骤 S204中所获取的表明家庭基站 320所服 务的用户终端 321的通信质量的指标,计算作为根据本公开的实施例的第 一信息的示例的信号指标 S。 特别地, 在由多个用户终端 321分别提供了 表明各个用户终端 321的通信质量的指标时, 可以根据各个用户终端 321 的重要性求得这些指标的加权和作为指标 S,也可以直接求出这些指标的 平均值作为指标 S, 或者用其他适当方式来计算指标 S。 该处理可以由前 述的第一信息获取单元 101、 122或 222来执行。
[123]此外, 在步骤 S206中, 基于步骤 S205 中所获取的表明受到家庭基 站 320所干扰的用户终端 341a的受干扰程度的指标, 计算作为才艮据本公 - - 开的实施例的第二信息的示例的干扰指标 I。 特别地, 在由多个用户终端
341a分别提供了表明各个用户终端 341a的受干扰程度的指标时, 可以根 据各个用户终端 341a的重要性求得这些指标的加权和作为指标 I, 也可 以直接求出这些指标的平均值作为指标 I, 或者用其他适当方式来计算指 标 I。 该处理可以前述的第二信息获取单元 102、 132或 232来执行。
[124]在步骤 S207中, 比较信号指标 S和预定信号指标 SQ, 若 S < S0, 则 在步骤 S208中选择参数表中准空白子帧静默比例更大并且功率降低量更 小的参数对来配置家庭基站 320 所发送的准空白子帧, 以提高家庭基站 320的总吞吐量。 要注意的是, 此处是以图 2中的参数对列表为例进行说 明的。 在图 2中示出的参数对列表中, 如前文所述, 静默比例更小并且功 率降低量更大的参数对会使得宏基站 340的边缘性能更好而家庭基站 320 的总吞吐量更小。
[125]类似地, 在步骤 S207中, 比较干扰指标 I和预定干扰指标 I。, 若 I > I。, 则在步骤 S208 中选择参数表中准空白子帧静默比例更小并且功率 降低量更大的参数对来配置家庭基站 320所发送的准空白子帧,以提高宏 基站 340的边缘性能。
[126]如果 S > SQ并且 I < IQ, 即信号指标 S大于等于作为其下限的预定信 号指标 SQ并且干扰指标 I小于等于作为其上限的预定干扰指标 I。, 则不 对准空白子帧的参数进行调整。此时,可以根据实际需要适当地调整预定 信号指标 SQ和预定干扰指标 I。, 以对家庭基站 320的总吞吐量和宏基站 340的边缘性能提出更高的要求。
[127]如果 S < S。并且 I > I。,则说明家庭基站 320的总吞吐量和宏基站 340 的边缘性能都不能满足预定的要求,此时,可以根据实际需要适当地调整 预定信号指标 SQ和预定干扰指标 I。, 以对家庭基站 320的总吞吐量和宏 基站 340 的边缘性能降低要求。 由于这种情况也有可能是由于故障造成 的, 也可以在该情况下发出 4艮错信息。
[128]步骤 S207和步骤 S208的处理可以由前述的配置单元 103、 123或者 233来执行。
[129]在完成步骤 S208之后, 处理可以进入下一个周期。
[130]要注意的是,为了在配置准空白子帧时避免前文所述的 "乒乓效应", 可以在信号指标 S的变化量小于预定阈值(例如小于 5% )时, 不进行信 号指标 S与预定信号指标 SQ的对比, 进而不调整准空白子帧静默比例和 - - 功率降低量。 类似地, 也可以在干扰指标 I的变化量小于预定阈值, 例如 小于 5%时, 不进行干扰指标 I与预定干扰指标 I。的对比, 进而不调整准 空白子帧静默比例和功率降低量。在该情况下,为了防止信号指标 S或干 扰指标 I 连续地以小于预定阈值的变化量变化导致了较大的累积变化量 从而针对准空白子帧静默比例和功率降低量的配置依然保持不变的情形, 可以设定为当干扰指标 I或者信号指标 S的变化量连续预定次数 (例如 5 次)小于预定阈值时,进行干扰指标 I与预定干扰指标 I。的对比或者信号 指标 S与预定信号指标 SQ的对比。
[131]此外,如前文所述,也可以采取其他适当的机制来避免配置准空白子 帧时的 "乒乓效应"。
[132]图 9 示出了根据本公开的实施例的另一示例。 在该场景下, 宏基站 420与微微基站 430、 440共存。 宏基站 420作为干扰基站, 对微微基站 430、 440的用户终端 431a、 431b, 441a, 441b形成了干扰。
[133]宏基站 420为用户终端 421提供服务,微微基站 430为用户终端 431a、 431b提供服务, 微 ^站440为用户终端 441a、 441b提供服务。
[134]由于微微基站 430、 440与宏基站 420都采用开放式用户接入方式, 因此在微微基站 430、 440的边缘区域, 宏基站 420会对微 ^站 430的 用户终端 431a和微微基站 440的用户终端 441a产生干扰。
[135]与图 7相似地,在图 9中,用带有箭头的实线表示基站对用户终端提 供服务, 用带有箭头的虛线表示基站对用户终端造成了干扰。
[136]本领域普通技术人员应该理解, 不同的基站有可能彼此干扰, 例如, 一种可能的情况是, 微微基站 430、 440对宏基站 420形成了干扰。 本领 域普通技术人员可以才艮据实际情况,选择使用发送准空白子帧的方式来抑 制基站之间的干扰。
[137]如图 9中所示,宏基站 420以带有准空白子帧的设计图样 422来发送 子帧, 以改善微微基站 430、 440的边缘性能。 同时, 微微基站 430、 440 分别以设计图样 432、 442发送不带有准空白子帧的子帧。
[138]此外,在设计图样 422中,用子帧的高度来示意性地表示子帧的功率。 根据图 9可知, 宏基站 420每发送 1个正常子帧就发送 4个准空白子帧。 根据本公开的实施例,宏基站 420发送准空白子帧的静默比例和功率降低 量可以是图 3的列表中的^:对。
[139]本领域普通技术人员应该理解, 图 1中的装置 10可以包括在宏基站 - -
420中,也可以包括在微微基站 430或 440中。此外,可以如图 4中所示, 作为干扰基站的宏基站 420包括第一信息获取单元 122和配置单元 123, 微 ^站 430和 /或 440包括第二信息获取单元 132,也可以如图 5中所示, 作为干扰基站的宏基站 420包括第一信息获取单元 222, 微微基站 430和 /或 440包括第二信息获取单元 232和配置单元 233。
[140]与图 7所示的示例相似地, 可以利用图 8的方法来周期性地配置图 9 的示例中宏基站 420发送准空白子帧的方法。要注意的是,在图 9的示例 中, 宏基站 420是干扰基站, 微微基站 430、 440是为受到宏基站 420干 扰的用户终端提供服务的基站。
[141]通过以上针对图 9所示出的示例进行的描述,本领域普通技术人员应 该认识到,本公开的实施例可以针对一个或多个基站所服务的用户终端受 到干扰的无线通信异构网络来实施。在该情况下,可以基于由不用基站所 服务的受干扰用户终端所检测到的信息, 来配置干扰基站的准空白子帧。
5.硬件配置示例
[142]上述根据本公开的实施例的装置、网络或基站中的各个组成单元和组 成设备等可以通过软件、 固件、硬件或其任意组合的方式进行配置。 在通 过软件或固件实现的情况下,可从存储介质或网络向具有专用硬件结构的 机器(例如图 10所示的通用机器 700 )安装构成该软件或固件的程序, 该机器在安装有各种程序时, 能够执行上述各组成单元、子单元的各种功 能。
[143]在图 10中, 中央处理单元(CPU ) 701根据只读存储器(ROM ) 702 中存储的程序或从存储部分 708加载到随机存取存储器(RAM ) 703的 程序执行各种处理。在 RAM 703中,还根据需要存储当 CPU 701执行各 种处理等等时所需的数据。 CPU 70K ROM 702和 RAM 703经由总线 704 彼此连接。 输入 /输出接口 705也连接到总线 704。
[144]下述部件也连接到输入 /输出接口 705: 输入部分 706 (包括 、 鼠 标等)、 输出部分 707 (包括显示器, 例如阴极射线管(CRT )、 液晶显示 器( LCD )等和扬声器等)、 存储部分 708 (包括硬盘等)、 通信部分 709 (包括网络接口卡例如局域网(LAN )卡、调制解调器等)。通信部分 709 经由网络例如因特网执行通信处理。根据需要,驱动器 710也可连接到输 入 /输出接口 705。 可拆卸介质 711例如磁盘、 光盘、磁光盘、 半导体存储 - - 器等等可以根据需要被安装在驱动器 710上,使得从中读出的计算机程序 可才艮据需要被安装到存储部分 708中。
[145]在通过软件实现上述系列处理的情况下,可以从网络例如因特网或从 存储介质例如可移除介质 711安装构成软件的程序。
[146]本领域的技术人员应当理解, 这种存储介质不局限于图 10所示的其 中存储有程序、与设备相分离地分发以向用户提供程序的可移除介盾 711。 可移除介质 711的例子包含磁盘 (包含软盘)、 光盘 (包含光盘只读存储 器(CD-ROM )和数字通用盘(DVD ) )、 磁光盘(包含迷你盘(MD ) ) 和半导体存储器。 或者, 存储介盾可以是 ROM 702、 存储部分 708中包 含的硬盘等等,其中存有程序,并且与包含它们的设备一起被分发给用户。
[147]此外, 本公开还提出了一种存储有机器可读取的指令代码的程序产 品。所述指令代码由机器读取并执行时,可执行上述根据本发明实施例的 处理方法。 相应地, 用于承载这种程序产品的例如磁盘、 光盘、 磁光盘、 半导体存储器等的各种存储介质也包括在^开的技术方案中。
[148]此外,显然,根据本公开的实施例的处理方法的各个操作过程也可以 以存储在各种机器可读的存储介质中的计算机可执行程序的方式实现。
[149]要注意,根据 开的实施例的装置、 网络和基站的各组成单元或组 成设备可以是独立部件,也可以由一个的部件来实现若干个组成单元或组 成设备的功能。
[150]本公开不仅公开了用于在无线通信异构网络中配置准空白子帧的装 置、无线通信异构网络、用于在无线通信异构网络中配置准空白子帧的方 法以及用于使得就执行该方法的程序和存储有该程序的存储介盾,也公开 了包括有用于在无线通信异构网络中配置准空白子帧的装置的基站。
[151]以上描述了根据本公开的优选实施例, 然而,上述描述仅仅是为了说 明本公开, 而非意图对本公开进行限定。本领域普通技术人员可以在不脱 离本公开的范围的情况下,对本公开的实施例中的各种特征进行修改、替 换、组合以及部分性的组合。本公开的范围应该由所附的权利要求来确定。

Claims

权利 要求 书
1、 一种装置, 其用于在无线通信异构网络中配置准空白子帧, 所述 装置包括:
第一信息获取单元,其被配置为获取第一信息, 所述第一信息与表明 干扰基站所服务的用户终端的通信质量的指标相关;
第二信息获取单元,其被配置为获取第二信息, 所述第二信息与表明 受到干扰基站干扰的用户终端的受干扰程度的指标相关; 以及
配置单元,其被配置为基于第一信息和第二信息,通过调整准空白子 帧静默比例和功率降低量中至少之一来配置干扰基站发送的准空白子帧。
2.根据权利要求 1所述的装置, 其中:
所述配置单元被进一步配置为通过在包括准空白子帧静默比例和功 率降低量的预定参数对的参数表中进行选择来配置干扰基站发送的准空 白子帧。
3.根据权利要求 2所述的装置, 其中:
所述预定参数对是根据干扰基站的类型来确定的
4.根据权利要求 1至 3中任一项所述的装置, 其中:
所述配置单元进一步被配置为,将所述第一信息与所述第二信息分别 与包含所述干扰基站所服务的用户终端的通信质量的下限的第一基准范 围以及包含受到所述干扰基站干扰的用户终端的受干扰程度的上限的第 二基准范围进行比较,并且以使得第一信息和第二信息分别处于第一基准 范围以及第二基准范围中的方式根据第一信息与第一基准范围的比较结 果和第二信息与第二基准范围的比较结果来配置干扰基站发送的准空白 子帧。
5.根据权利要求 4所述的装置, 其中: 所述配置单元被进一步配置为根据表明干扰基站所服务的用户终端 和受干扰的用户终端的特性的指标来调整第一基准范围与第二基准范围。
6.根据权利要求 5所述的装置, 其中:
表明干扰基站所服务的用户终端和受干扰的用户终端的特性的指标 与干扰基站所服务的用户终端数、受干扰的用户终端数、干扰基站所服务 的用户终端的业务量、 受干扰的用户终端的业务量中的至少一项相关。
7.根据权利要求 6所述的装置, 其中:
表明干扰基站所服务的用户终端和受干扰的用户终端的特性的指标 与受干扰的用户终端数和干扰基站所服务的用户终端数之间的比值正相 关; 并且
所述配置单元被进一步配置为当表明干扰基站所服务的用户终端和 受干扰的用户终端的特性的指标增加时,使得第一基准范围中所包括的所 述干扰基站所服务的用户终端的通信质量的下限降低,并且使得第二基准 范围中所包括的受到所述干扰基站干扰的用户终端的受干扰程度的上限 降低。
8.根据权利要求 6所述的装置, 其中:
表明干扰基站所服务的用户终端和受干扰的用户终端的特性的指标 与受干扰的用户终端的业务量和干扰基站所 Ji艮务的用户终端的业务量之 间的比值正相关; 并且
所述配置单元被进一步配置为当表明干扰基站所服务的用户终端和 受干扰的用户终端的特性的指标增加时,使得第一基准范围中所包括的所 述干扰基站所服务的用户终端的通信质量的下限降低,并且使得第二基准 范围中所包括的受到所述干扰基站干扰的用户终端的受干扰程度的上限 降低。
9.根据权利要求 1至 8中任一项所述的装置, 其中:
表明干扰基站所服务的用户终端的通信质量的指标与干扰基站所服 务的用户终端在接收干扰基站的信号时的参考信号接收功率、通信质量指 标、基于信道状态信息的参考信号接收功率以及链路的耦合损耗中的至少 一项相关。
10.根据权利要求 1至 9中任一项所述的装置, 其中:
表明受干扰的用户终端的受干扰程度的指标与受干扰的用户终端在 接收干扰基站的信号时的参考信号接收功率、通信质量指标、基于信道状 态信息的参考信号接收功率以及链路的耦合损耗中的至少一项相关。
11.根据权利要求 1至 10中任一项所述的装置, 其中:
所述配置单元被进一步配置为周期性地根据第一信息的变化量来调 整准空白子帧静默比例和功率降低量中至少之一,并且在第一信息的变化 量小于预定阈值时, 不进行调整。
12.根据权利要求 1至 11中任一项所述的装置, 其中:
所述配置单元被进一步配置为周期性地根据第二信息的变化量来调 整准空白子帧静默比例和功率降低量中至少之一,并且在第二信息的变化 量小于预定阈值时, 不进行调整。
13. 一种无线通信异构网络, 其包括:
第一基站, 其包括第一信息获取单元和配置单元, 以及
第二基站, 其包括第二信息获取单元, 其中:
所述第一信息获取单元被配置为获取第一信息,所述第一信息与 表明第一基站所服务的用户终端的通信质量的指标相关,
所述第二信息获取单元被配置为获取第二信息,所述第二信息与 表明第二基站所服务的用户终端受第一基站干扰程度的指标相关, 并且 所述配置单元被配置为基于第一信息和第二信息,通过调整准空 白子帧静默比例和功率降低量中的至少之一来配置第一基站发送的准空 白子帧。
14. 一种无线通信异构网络, 其包括:
第一基站, 其包括第一信息获取单元, 以及
第二基站, 其包括第二信息获取单元和配置单元, 其中:
所述第一信息获取单元被配置为获取第一信息,所述第一信息与 表明第一基站所服务的用户终端的通信质量的指标相关,
所述第二信息获取单元被配置为获取第二信息,所述第二信息与 表明第二基站所服务的用户终端受第一基站干扰程度的指标相关, 并且 所述配置单元被配置为基于第一信息和第二信息,通过调整准空 白子帧静默比例和功率降低量中的至少之一来配置第一基站发送的准空 白子帧。
15. 一种用于在用于无线通信的异构网络中配置准空白子帧的方法, 其包括:
获取第一信息,所述第一信息与表明干扰基站所服务的用户终端的通 信质量的指标相关;
获取第二信息,所述第二信息与表明受到干扰基站干扰的用户终端的 受干扰程度的指标相关; 以及
基于第一信息和第二信息,通过调整准空白子帧静默比例和功率降低 量中的至少之一来配置干扰基站发送的准空白子帧。
16.根据权利要求 15所述的方法, 其中:
所述配置准空白子帧的步骤进一步包括通过在包括准空白子帧静默 比例和功率降低量的预定参数对的参数表中进行选择来配置干扰基站发 送的准空白子帧。
17.根据权利要求 16所述的方法, 其中:
所述预定参数对是根据干扰基站的类型来确定的。
18.根据权利要求 15至 17中任一项所述的方法, 其中: 所述配置准空白子帧的步骤进一步包括将所述第一信息与所述第二 信息分别与包含所述干扰基站所服务的用户终端的通信质量的下限的第 一基准范围以及包含受到所述干扰基站干扰的用户终端的受干扰程度的 上限的第二基准范围进行比较,并且以使得第一信息和第二信息分别处于 第一基准范围以及第二基准范围中的方式根据第一信息与第一基准范围 的比较结果和第二信息与第二基准范围的比较结果来配置干扰基站发送 的准空白子帧。
19.根据权利要求 18所述的方法, 其中:
所述配置准空白子帧的步骤进一步包括根据表明干扰基站所服务的 用户终端和受干扰的用户终端的特性的指标来调整第一基准范围与第二 基准范围。
20.根据权利要求 19所述的方法, 其中:
表明干扰基站所服务的用户终端和受干扰的用户终端的特性的指标 与干扰基站所服务的用户终端数、受干扰的用户终端数、干扰基站所服务 的用户终端的业务量、 受干扰的用户终端的业务量中的至少一项相关。
PCT/CN2013/086308 2012-11-28 2013-10-31 用于配置准空白子帧的装置和方法及无线通信异构网络 WO2014082518A1 (zh)

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