WO2012072005A1 - 一种确定上下行配置的方法、系统和设备 - Google Patents

一种确定上下行配置的方法、系统和设备 Download PDF

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Publication number
WO2012072005A1
WO2012072005A1 PCT/CN2011/082953 CN2011082953W WO2012072005A1 WO 2012072005 A1 WO2012072005 A1 WO 2012072005A1 CN 2011082953 W CN2011082953 W CN 2011082953W WO 2012072005 A1 WO2012072005 A1 WO 2012072005A1
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WIPO (PCT)
Prior art keywords
value
cell
uplink
base station
downlink configuration
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PCT/CN2011/082953
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English (en)
French (fr)
Inventor
潘学明
孙韶辉
肖国军
秦飞
沈祖康
丁昱
Original Assignee
大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to US13/991,157 priority Critical patent/US9794945B2/en
Priority to EP11845482.6A priority patent/EP2648446B1/en
Publication of WO2012072005A1 publication Critical patent/WO2012072005A1/zh

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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
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • 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
    • 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
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • H04B17/327Received signal code power [RSCP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • 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
    • 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]
    • H04W28/18Negotiating wireless communication parameters
    • 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
    • H04W52/242TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/38TPC being performed in particular situations
    • H04W52/40TPC being performed in particular situations during macro-diversity or soft handoff
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, system, and device for determining an uplink and downlink configuration.
  • TDD time division duplex
  • GP guard interval
  • FDD frequency division duplex
  • the uplink and downlink signals are transmitted with a guard bandwidth (GB) between the uplink and the downlink.
  • a radio frame has a length of 10 ms, and includes 10 subframes in a special subframe and a regular subframe. Each subframe is Lms.
  • the special subframe is divided into three subframes: Downlink Pilot Slot (DwPTS) is used to transmit Primary Synchronized Signal (PSS), Physical Downlink Control Channel (PDCCH), and physical hybrid. Automatically request a Physical HARQ Indication Channel (PHICH), a Physical Control Format Indication Channel (PCFICH), a Physical Downlink Shared Channel (PDSCH), etc.; Uplink Pilot Slot (UpPTS) is used to transmit Sounding Reference Signal (SRS), Physical Random Access Channel (PRACH), etc.
  • DwPTS Downlink Pilot Slot
  • PHS Primary Synchronized Signal
  • PDCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • UpPTS Uplink Pilot Slot
  • SRS Sounding Reference Signal
  • PRACH Physical Random Access Channel
  • the regular subframe includes an uplink subframe and a downlink subframe, and is used for transmitting uplink/downlink control signaling and service data.
  • two special subframes can be configured, which are located in subframes 1 and 6, and can also be configured with a special subframe located in subframe 1.
  • Subframe 0 and subframe 5 and DwPTS subframes in special subframes are always used for downlink transmission.
  • Subframe 2 and UpPTS subframes in special subframes are always used for uplink transmission.
  • Other subframes can be configured as needed. For uplink transmission or downlink transmission.
  • the uplink and downlink transmissions use the same frequency resource, and the uplink/downlink signals are transmitted on different subframes.
  • the common TDD system including 3G Time Division Synchronized Code Division Multiple Access (TD-SCDMA) system and 4G TD-LTE system
  • uplink and downlink subframes The division is static or semi-static. Generally, the proportion of the uplink and downlink subframes is determined and remains unchanged according to the cell type and the approximate service ratio in the network planning process. This is a relatively simple approach in the context of large coverage of macro cells, and is also more effective. With the development of technology, more and more low-power base stations such as Pico cell home base stations (Home NodeBs) are deployed to provide local small coverage. In such cells, the number of users is small, and users The service demand changes greatly, so the demand for the uplink and downlink services of the cell changes dynamically.
  • Home NodeBs Pico cell home base stations
  • the base station-base station is spoofed, and the femto base station directly receives the downlink signal of the Macro base station, which will seriously affect the shield of the femto base station receiving the uplink signal of the local UE (Local UE, L-UE).
  • the embodiments of the present invention provide a method, a system, and a device for determining an uplink and downlink configuration, which are used to detect a interference to determine whether a cell can independently perform an uplink and downlink configuration.
  • a method for determining an uplink and downlink configuration provided by the implementation of the present invention includes:
  • the network side device determines a interference parameter value of the target cell
  • the network side device determines, according to the interference parameter value of the target cell, whether the target cell can perform uplink and downlink configuration autonomously.
  • An apparatus for determining an uplink and downlink configuration provided in the implementation of the present invention includes:
  • a first parameter value determining module configured to determine a interference parameter value of the target cell
  • the first configuration determining module is configured to determine, according to the interference parameter value of the target cell, whether the target cell can perform uplink and downlink configuration autonomously.
  • a base station provided in the implementation of the present invention includes:
  • a processing module configured to determine a value of the interference parameter, where the value of the interference parameter is used to indicate that the network side device determines whether the current cell can perform uplink and downlink configuration autonomously;
  • the reporting module is used for the value of the interference parameter determined by the above.
  • a system for determining an uplink and downlink configuration including a base station, in the implementation of the present invention, the system further includes: a network side device, configured to determine a interference parameter value of the target cell, and determine a target cell according to the interference parameter value of the target cell Whether it is possible to perform uplink and downlink configuration autonomously.
  • Another method for determining an uplink and downlink configuration includes:
  • the base station determines a value of the interference parameter of the local cell
  • the base station determines, according to the interference parameter value of the local cell, whether the local cell can perform uplink and downlink configuration autonomously.
  • Another device for determining an uplink and downlink configuration provided in the implementation of the present invention includes:
  • a second parameter value determining module configured to determine a interference parameter value of the local cell
  • the second configuration determining module is configured to determine, according to the interference parameter value of the current cell, whether the current cell can perform uplink and downlink configuration autonomously.
  • FIG. 1 is a schematic diagram of a frame structure of a TD-LTE system
  • 2 is a schematic diagram of cross-slot interference
  • FIG. 3 is a schematic flowchart of a method for determining an uplink and downlink configuration in a centralized manner according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a system for determining an uplink and downlink configuration in a centralized manner according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a network side device for determining an uplink and downlink configuration in a centralized manner according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a base station for centrally determining an uplink and downlink configuration according to an embodiment of the present invention
  • FIG. 7 is a schematic flowchart of a method for determining an uplink and downlink configuration by using a distributed embodiment according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a system for determining uplink and downlink configurations by using a distributed embodiment according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a base station configured to determine an uplink and downlink configuration in a distributed manner according to an embodiment of the present invention.
  • the network side device determines, according to the interference parameter value of the target cell, whether the target cell can perform uplink and downlink configuration autonomously; or the base station determines whether the cell can perform uplink and downlink independently according to the interference parameter value of the current cell.
  • Configuration The dynamic uplink and downlink configuration can be normally operated, and the interference between adjacent neighbors can be improved in a dynamic uplink and downlink configuration environment. System efficiency.
  • the embodiments of the present invention can be applied to a TDD system (such as a TD-LTE system), and can also be applied to other Systems that need to dynamically adjust the uplink and downlink configuration of the subframe, such as the TD-SCDMA system and its subsequent evolution systems, the Worldwide Interoperability for Microwave Access (WiMAX) system and its subsequent evolution systems. .
  • a TDD system such as a TD-LTE system
  • WiMAX Worldwide Interoperability for Microwave Access
  • Step 201 A network side device determines a value of a interference parameter of a target cell.
  • Step 202 The network side device determines, according to the interference parameter value of the target cell, whether the target cell can perform uplink and downlink configuration autonomously.
  • the centralized mode of the embodiment of the present invention is to set a centralized management node (ie, a network side device in the embodiment of the present invention) in a certain area, and is used for determining a level of interference between adjacent cells.
  • the centralized management node knows the geographical location of each cell under its jurisdiction and the neighbor relationship between each other, as well as the type of each base station, transmission power and the like.
  • the base station sends the measured interference parameter values of the neighboring cells to the centralized management node through the network interface, where the threshold of the interference strength is pre-stored, and the measurement result and the interference threshold value between the adjacent cells are adopted.
  • the comparison determines whether the uplink and downlink configurations of different neighboring cells are configured to cause unacceptable crosstalk.
  • step 202 the network side device compares the value of the interference parameter with the threshold corresponding to the target cell, and determines whether the target cell can perform the uplink and downlink configuration autonomously according to the comparison result.
  • the value of the interference parameter includes but is not limited to one or more of the following parameter values:
  • RSRP Reference signal received power
  • RIP Received Interference Power
  • CQI Channel Quality Indicator
  • RSRQ Reference Signal Received Quality
  • the interference parameter value includes an RSRP value, where the RSRP value is the first RSRP value of the target cell receiving the neighbor cell reference signal.
  • the network side device may compare the first RSRP value with the first threshold corresponding to the target cell, and determine whether the first RSRP value is smaller than the corresponding first threshold. If yes, determine that the target cell can perform uplink and downlink configuration autonomously. Otherwise, It is determined that the target cell cannot perform the uplink and downlink configuration autonomously.
  • the network side device is known to have an adjacent relationship between the Macro cell and a femto cell, and the Macro cell reports that the RSRP strength of the received Femto cell reference signal is X dBm.
  • the network side device presets the allowable interference level of the Macro cell to be M dBm (this threshold is obtained through simulation evaluation or network measurement), if X ⁇ M, then The Macro cell is capable of autonomous uplink and downlink configuration.
  • the first threshold corresponding to the cell here may be specified in the protocol in advance.
  • the first threshold can also be updated as needed.
  • the first RSRP value determined by the network side device is measured and reported by the base station to which the target cell belongs.
  • the base station measures the received neighbor cell reference signal in the measurement interval or through the uplink subframe to obtain a first RSRP value.
  • the e B measurement gap may be configured for the base station, and is defined as a period of time for the base station measurement. , for example, lms or 5ms.
  • the base station measures the base station transmit signal strength of the neighboring cell, for example, the RSRP value.
  • the base station does not recognize the neighboring cell before the measurement, the base station needs to complete the work of the neighbor cell search and synchronization within the measurement interval, so it is necessary to configure a longer measurement interval, for example, 5 ms or more; if the base station has already measured before the measurement If a neighboring cell is searched, a shorter measurement interval, for example, 5 ms or less can be configured.
  • the base station does not perform any local area signal transmission and reception. If it is determined that the first RSRP value of the target cell receiving a neighboring cell is higher than a preset threshold, it is determined that if the neighboring cell is different from the uplink and downlink ratio of the local area, the transmitting signal of the neighboring cell will be in the local area.
  • the uplink reception causes cross interference.
  • the base station measures the received neighbor cell reference signal by using the uplink subframe to obtain the first RSRP value
  • the base station performs uplink cell sub-base station transmission signal measurement, for example, measuring the RSRP value.
  • the scheme does not need to be configured with a dedicated measurement interval, and the base station stops the uplink scheduling of the user of the cell in the uplink subframe that needs to be measured. If the number of consecutive uplink subframes available is small, if the first RSRP value of the target cell receiving a neighboring cell is measured to be higher than a preset threshold, it is identified that the neighboring cell is different from the uplink and downlink ratio of the local area. The transmit signal of the neighboring cell will cause cross interference to the uplink reception of the local area.
  • the method further includes:
  • the network side device determines, according to the first RSRP value and the second RSRP value, whether the target cell can independently perform uplink and downlink Configuration.
  • the network side device compares the first RSRP value with the first threshold corresponding to the target cell, and compares the second RSRP value with the first threshold corresponding to the neighboring cell, and determines whether the RSRP values of the two cells are smaller than the corresponding The first threshold, if yes, determines that the first cell can perform the uplink and downlink configuration autonomously, otherwise it determines that the target cell cannot perform the uplink and downlink configuration autonomously. If yes, it can also be determined that the neighboring cell can perform the uplink and downlink configuration autonomously, otherwise it is determined that the neighboring cell cannot perform the uplink and downlink configuration autonomously.
  • each base station reports the detected RSRP information of the neighboring base station, and the network side device knows that the relationship between the Macro cell and a femto cell is adjacent, and the transmit power of the Macro cell is 46 dBm, and the femto cell transmit power is 20dBm, the Femto cell RSRP intensity detected by the macro cell is X dBm, and the femto cell reports it.
  • the macro cell has an RSRP intensity of Y dBm.
  • the network side device presets that the allowable interference level of the Macro cell is M dBm, and the allowable interference level of the femto cell is N dBm. After the network side device obtains the measurement information, when ⁇ ⁇ , it can be determined that different uplink and downlink configurations can be configured between the two cells.
  • the first threshold corresponding to the cell here may be specified in the protocol in advance.
  • the first threshold can also be updated as needed.
  • the network side device determines the second RSRP value in two ways:
  • the first RSRP value is reported by the base station to which the neighboring cell belongs.
  • the network side device receives the second RSRP value measured by the base station to which the neighboring cell belongs and is up.
  • the manner in which the base station to which the neighboring cell belongs determines the second RSRP value is the same as the method in which the base station to which the target cell belongs determines the first RSRP value, and details are not described herein again.
  • Manner 2 The network side device receives a Pathloss value between the target cell and the neighboring cell reported by the base station, and determines a second RSRP value according to the transmit power value of the target cell and the Pathloss value between the target cell and the neighboring cell.
  • the base station to which the target cell belongs reports a Pathloss value between the target cell and the neighboring cell.
  • the network side device After receiving the Pathloss value between the target cell and the neighboring cell, the network side device performs the difference between the transmit power value of the target cell and the Pathloss value. , the obtained value is taken as the second RSRP value.
  • the base station obtains the uplink and downlink subframe allocation information of the neighboring cell and the cell-specific reference signal (CRS) transmit power information of the neighboring cell through a network interface, such as a macro cell or a Pico cell.
  • CRS cell-specific reference signal
  • the above information is obtained through the X2 interface; the Femto cell can know the above information through the SI interface.
  • the base station subtracts the CRS transmission power information of the corresponding neighboring cell according to the first RSRP, and obtains a Pathloss value between the local cell and the neighboring cell.
  • the specific use mode 1 or mode 2 can be set in the protocol, or can be notified by the upper layer.
  • the value of the interference parameter includes the RIP value.
  • the network side device may compare the RIP value with the second threshold corresponding to the target cell, and determine whether the RIP value is smaller than the corresponding second threshold. If yes, determine that the target cell can perform uplink and downlink configuration autonomously, otherwise the target cell cannot be determined. Independently perform uplink and downlink configuration.
  • the second threshold corresponding to the cell here may be specified in the protocol in advance.
  • the second threshold can also be updated as needed.
  • step 201 the RIP value determined by the network side device is measured and reported by the base station to which the target cell belongs.
  • the base station measures all the received interferences except the useful signal of the local cell through the uplink subframe to obtain a RIP value.
  • the base station measures the received RIP value in the uplink subframe, and the RIP value is all the interference values except the useful signal in the local area, including thermal noise.
  • the interference parameter value includes a CQI value and/or an RSRQ value, where the CQI value and/or the RSRQ value includes three Species: Only include CQI values, only RSRQ values, including CQI values and RSRQ values.
  • the network side device may compare the CQI value with the third threshold corresponding to the target cell, and determine whether the CQI value is smaller than the corresponding third threshold. If yes, determine that the target cell can perform the autonomous process.
  • the uplink and downlink configuration otherwise it is determined that the target cell cannot perform the uplink and downlink configuration autonomously.
  • the network side device may compare the RSRQ value with the fourth threshold corresponding to the target cell, and determine whether the RSRQ value is smaller than the corresponding fourth threshold. If yes, determine that the target cell can perform uplink and downlink independently. Configuration, otherwise it is determined that the target cell cannot perform uplink and downlink configuration autonomously.
  • the network side device may compare the CQI value with a third threshold corresponding to the target cell, compare the RSRQ value with a fourth threshold corresponding to the target cell, and determine whether the CQI value is smaller than the corresponding value.
  • the third threshold and the RSRQ value are smaller than the corresponding fourth threshold. If yes, it is determined that the target cell can perform the uplink and downlink configuration autonomously, otherwise it is determined that the target cell cannot perform the uplink and downlink configuration autonomously.
  • the third threshold and the fourth threshold corresponding to the cell may be specified in the protocol in advance.
  • the third threshold and the fourth threshold may also be updated as needed.
  • step 201 the CQI value and/or the RSRQ value determined by the network side device are reported by the base station to which the target cell belongs.
  • the base station receives the CQI value and/or the RSRQ value reported from the UE, and receives the received CQI value and/or
  • the RSRQ value is reported to the network measurement device.
  • the cell base station collects the periodic or aperiodic broadband CQI feedback information reported by the UE in the local area, and/or collects the RSRQ information reported by the UE in the local area, for example, the base station may trigger the UE. Reporting; You can also set a time for the UE to report periodically. If the value of the wideband CQI reported by the UE is lower than the preset threshold, or the RSRQ value reported by the UE is lower than the preset threshold, the UE in the local area may receive the cross interference of the neighboring UE.
  • the measurement result may be processed, for example, using a time smoothing method to measure whether the measurement result in a period of time is lower than the target value, or, for example, counting the measurement results of a plurality of users and then performing the judgment.
  • step 202 the method further includes:
  • the network side device After determining that the target cell can perform the uplink and downlink configuration autonomously, the network side device notifies the target cell to perform uplink and downlink configuration autonomously, and further can notify each cell adjacent to the target cell;
  • the network side device After determining that the target cell cannot perform the uplink and downlink configuration autonomously, the network side device notifies the target cell to the unified uplink and downlink configuration information, and further can notify each cell adjacent to the target cell.
  • the base station sets the uplink and downlink configuration according to the notification of the network side device, establishes the local cell, and starts providing the communication service to the UE.
  • the network side device in the embodiment of the present invention may be a high layer device, such as a radio link control (Radio Link). Control, RNC) device; can also be other network side devices or virtual devices or logical nodes; or new network side devices.
  • the base station in the embodiment of the present invention may be a macro base station, a micro base station, a home base station, or the like.
  • the embodiment of the present invention further provides a system for centrally determining an uplink and downlink configuration, a network side device for centrally determining an uplink and downlink configuration, and a base station for centrally determining an uplink and downlink configuration.
  • the principle of the device to solve the problem is similar to the method for determining the uplink and downlink configuration in a centralized manner. Therefore, the implementation of these devices can be referred to the implementation of the method, and the repeated description will not be repeated.
  • the system for determining the uplink and downlink configuration in a centralized manner includes: a network side device 10 and a base station 20.
  • the network side device 10 is configured to determine a value of the interference parameter of the target cell, and determine, according to the value of the interference parameter of the target cell, whether the target cell can perform the uplink and downlink configuration autonomously.
  • the base station 20 to which the target cell belongs is used to: report the interference parameter value of the target cell.
  • the network side device 10 compares the value of the interference parameter with the threshold corresponding to the target cell, and determines whether the target cell can perform the uplink and downlink configuration autonomously according to the comparison result.
  • the value of the interference parameter includes but is not limited to one or more of the following parameter values:
  • the interference parameter value includes an RSRP value, where the RSRP value is the first RSRP value of the target cell receiving the neighbor cell reference signal.
  • the network side device 10 may compare the first RSRP value with the first threshold corresponding to the target cell, and determine whether the first RSRP value is smaller than the corresponding first threshold. If yes, determine that the target cell can perform uplink and downlink configuration autonomously. Otherwise, it is determined that the target cell cannot perform the uplink and downlink configuration autonomously.
  • the first RSRP value determined by the network side device is measured and reported by the base station 20 to which the target cell belongs.
  • the base station 20 measures the received neighbor cell reference signal in the measurement interval or through the uplink subframe to obtain a first RSRP value.
  • the network side device 10 determines that the neighboring cell of the target cell receives the second RSRP value of the target cell reference signal, and determines whether the target cell can perform the uplink and downlink configuration autonomously according to the first RSRP value and the second RSRP value.
  • the network side device 10 compares the first RSRP value with the first threshold corresponding to the target cell, and compares the second RSRP value with the first threshold corresponding to the neighboring cell, and determines whether the RSRP values of the two cells are both smaller than Corresponding first threshold, if yes, determining that the first cell can perform uplink and downlink configuration autonomously, otherwise determining that the target cell cannot perform uplink and downlink configuration autonomously. If yes, it can also be determined that the neighboring cell can perform the uplink and downlink configuration autonomously, otherwise it is determined that the neighboring cell cannot perform the uplink and downlink configuration autonomously.
  • the base station 20 to which the neighboring cell belongs reports the second RSRP value.
  • the network side device 10 receives the neighboring cell.
  • the second RSRP value measured and reported by the base station 20 of the genus.
  • the network side device 10 receives the Pathloss value between the target cell and the neighboring cell reported by the base station 20, and determines the second RSRP value according to the transmit power value of the target cell and the Pathloss value between the target cell and the neighboring cell.
  • the base station 20 to which the target cell belongs reports the Pathloss value between the target cell and the neighboring cell.
  • the network-side device 10 sets the transmit power value and the Pathloss value of the target cell. The difference is made and the value obtained is taken as the second RSRP value.
  • the specific use mode 1 or mode 2 can be set in the protocol, or can be notified by the upper layer.
  • the value of the interference parameter includes the RIP value.
  • the network side device 10 may compare the RIP value with the second threshold corresponding to the target cell, and determine whether the RIP value is smaller than the corresponding second threshold. If yes, determine that the target cell can perform uplink and downlink configuration autonomously, otherwise determine the target cell. The upstream and downstream configurations cannot be performed autonomously.
  • the RIP value determined by the network side device 10 is measured and reported by the base station 20 to which the target cell belongs.
  • the base station 20 measures all the received interferences except the useful signal of the local cell through the uplink subframe to obtain a RIP value.
  • the interference parameter value includes a CQI value and/or an RSRQ value, where the CQI value and/or the RSRQ value include three types: only the CQI value, only the RSRQ value, including the CQI value and the RSRQ value.
  • the system of the embodiment of the present invention may further include a terminal.
  • the CQI value and/or the RSRQ value determined by the network side device 10 are reported by the base station 20 to which the target cell belongs.
  • the base station 20 receives the CQI value and/or the RSRQ value reported from the terminal, and reports the received CQI value and/or the RSRQ value to the network measuring device.
  • the network side device 10 After determining that the target cell can perform the uplink and downlink configuration autonomously, the network side device 10 notifies the target cell to perform the uplink and downlink configuration autonomously, and further can notify each cell adjacent to the target cell;
  • the network side device 10 After determining that the target cell cannot perform the uplink and downlink configuration autonomously, the network side device 10 notifies the target cell of the unified uplink and downlink configuration information, and further notifies each cell adjacent to the target cell.
  • the base station 20 sets the uplink and downlink configuration according to the notification of the network side device 10, establishes the local cell, and starts providing communication services to the UE.
  • the network side device that determines the uplink and downlink configuration in a centralized manner includes: a first parameter value determining module 100 and a first configuration determining module 110.
  • the first parameter value determining module 100 is configured to determine a interference parameter value of the target cell.
  • the first configuration determining module 110 is configured to determine, according to the interference parameter value of the target cell, whether the target cell can be autonomous Perform uplink and downlink configuration.
  • the first configuration determining module 110 compares the value of the interference parameter with the threshold corresponding to the target cell, and determines whether the target cell can perform the uplink and downlink configuration autonomously according to the comparison result.
  • the interference parameter value includes one or more of an RSRP value, a RIP value, a CQI value, and an RSRQ value.
  • the first parameter value determining module 100 determines that the neighboring cell of the target cell receives the second RSRP value of the target cell reference signal;
  • the first configuration determining module 110 determines, according to the first RSRP value and the second RSRP value, whether the target cell can perform uplink and downlink configuration autonomously.
  • the first parameter value determining module 100 receives the first RSRP value measured and reported by the base station.
  • the first parameter value determining module 100 is further configured to receive a path loss between the target cell and the neighboring cell reported by the base station.
  • the Pathloss value determines the second RSRP value according to the transmit power value of the target cell and the Pathloss value between the target cell and the neighboring cell.
  • the first configuration determining module 110 is configured to compare the first RSRP value with a first threshold corresponding to the target cell, and compare the second RSRP value with a first threshold corresponding to the neighboring cell, and determine, according to the comparison result, whether the target cell can Independently perform uplink and downlink configuration.
  • the first parameter value determining module 100 receives the RIP value measured and reported by the base station. If the interference parameter value includes a CQI value and/or an RSRQ value, the first parameter value determining module 100 receives the CQI value and/or the RSRQ value reported by the base station.
  • the first configuration determining module 110 After determining that the first cell can perform the uplink and downlink configuration autonomously, the first configuration determining module 110 notifies the target cell to perform the uplink and downlink configuration autonomously; after determining that the first cell cannot perform the uplink and downlink configuration autonomously, the unified uplink and downlink configuration information is used. Notify the target cell.
  • the base station for determining the uplink and downlink configuration in a centralized manner includes: a processing module 200 and a reporting module 210.
  • the processing module 200 is configured to determine a interference parameter value.
  • the reporting module 210 is configured to report the interference parameter value determined by the processing module 200.
  • the interference parameter value includes the first RSRP value of the neighboring cell reference signal received by the local cell
  • the processing module 200 measures the received neighbor cell reference signal to obtain the first RSRP value in the measurement interval, or measures the received neighbor cell reference signal by using the uplink subframe to obtain the first RSRP value.
  • the processing module 200 may further determine a Pathloss value between the cell and the neighboring cell according to the transmit power value of the neighboring cell and the first RSRP value; and correspondingly, the reporting module 210 has a value of "3 ⁇ 413 ⁇ 4111055".
  • the processing module 200 measures all the received interferences except the useful signal of the local cell by using the uplink subframe to obtain a RIP value;
  • the processing module 200 receives the CQI value reported from the terminal. And / or RSRQ values.
  • the method for determining the uplink and downlink configuration by using the distributed method includes the following steps: Step 601: The base station determines a value of the interference parameter of the local cell.
  • Step 602 The base station determines, according to the interference parameter value of the local cell, whether the local cell can perform uplink and downlink configuration autonomously.
  • the distributed embodiment of the present invention pre-sets the interference level values that the own cell (which may also include the neighboring cell) can be allowed in each base station, and then each base station independently determines.
  • step 602 the base station compares the value of the interference parameter with the threshold corresponding to the local cell, and determines whether the local cell can perform the uplink and downlink configuration autonomously according to the comparison result.
  • the value of the interference parameter includes but is not limited to one or more of the following parameter values:
  • the value of the interference parameter includes an RSRP value, where the RSRP value is the first RSRP value of the reference signal of the neighboring cell received by the local cell.
  • the base station may compare the first RSRP value with the first threshold corresponding to the local cell, and determine whether the first RSRP value is smaller than the corresponding first threshold. If yes, determine that the local cell can perform uplink and downlink configuration autonomously, otherwise The cell cannot perform uplink and downlink configurations autonomously.
  • the Macro base station detects that the RSRP strength of the macro cell receiving the Femto cell reference signal is X dBm.
  • the Macro base station presets the allowable interference level of the Macro cell to be M dBm.
  • the threshold is obtained through simulation evaluation or network measurement. If X ⁇ M, it is determined that the Macro cell can perform uplink and downlink configuration autonomously.
  • the first threshold corresponding to the cell here may be specified in the protocol in advance.
  • the first threshold can also be updated as needed.
  • step 601 the base station measures the received neighbor cell reference signal in the measurement interval or through the uplink subframe to obtain a first RSRP value.
  • the base station may be configured with a measurement interval, which is defined as a period of time for the base station measurement, for example, lms or 5 ms. During the measurement interval, the base station measures the base station transmit signal strength of the neighboring cell, for example, the RSRP value.
  • the base station does not recognize the neighboring cell before the measurement, the base station needs to complete the work of the neighbor cell search and synchronization within the measurement interval, so it is necessary to configure a longer measurement interval, for example, 5 ms or more; if the base station has already measured before the measurement If a neighboring cell is searched, a shorter measurement interval, for example, 5 ms or less can be configured.
  • the base station does not perform any local area signal transmission and reception. If it is determined that the first RSRP value of a neighboring cell in the cell is higher than a preset threshold, it is determined that if the neighboring cell is different from the uplink and downlink ratio of the local area, the transmitting signal of the neighboring cell will be in the local area.
  • the uplink reception causes cross interference.
  • the base station passes the uplink subframe, and measures the received neighbor cell reference signal to obtain the first RSRP value, then the base The uplink subframe is used to perform signal measurement of the neighboring base station, for example, measuring the RSRP value.
  • the scheme does not need to configure a dedicated measurement interval, and the base station stops the uplink scheduling of the user of the cell in the uplink subframe that needs to be measured. If the number of consecutive uplink subframes available is small, if the first RSRP value of the neighboring cell received by the cell is measured to be higher than a preset threshold, it is identified that the neighboring cell is different from the uplink and downlink in the local area. The transmit signal of the neighboring cell will cause cross interference to the uplink reception of the local area.
  • the method further includes:
  • the base station determines the second RSRP value of the neighboring cell receiving the reference signal of the local cell.
  • the base station determines, according to the first RSRP value and the second RSRP value, whether the cell can perform the uplink and downlink configuration autonomously.
  • the base station compares the first RSRP value with the first threshold corresponding to the local cell, and compares the second RSRP value with the first threshold corresponding to the neighboring cell, and determines whether the RSRP values of the two cells are all smaller than the corresponding threshold. If yes, it is determined that the cell can perform the uplink and downlink configuration autonomously, otherwise it is determined that the cell cannot perform the uplink and downlink configuration autonomously.
  • the first threshold corresponding to the cell here may be specified in the protocol in advance.
  • the first threshold can also be updated as needed.
  • the Macro base station detects that the RSRP strength of the Femto cell received by the Macro cell is X dBm, and the RSRP strength of the Femto cell receiving macro cell determined by the Macro base station is Y dBm.
  • the Macro base station presets the allowable interference level of the Macro cell to be M dBm, and the allowable interference level of the femto cell is N dBm.
  • the centralized decision can be performed on the uplink and downlink.
  • Manner 1 The base station obtains the second RSRP value through the X2 interface or the S1 interface.
  • the base station can obtain the second RSRP value from the base station to which the neighboring cell belongs through the X2 interface or the S1 interface.
  • the second RSRP value can also be obtained from the centralized network side device in the embodiment of the present invention through the X2 interface or the S1 interface. .
  • Manner 2 The base station determines a Pathloss value between the local cell and the neighboring cell according to the transmit power value of the neighboring cell and the first RSRP value, according to the transmit power value of the local cell, and the determined between the local cell and the neighboring cell.
  • the Pathloss value determines the second RSRP value.
  • the base station learns the uplink and downlink subframe allocation information of the neighboring cell and the neighboring cell through the network interface.
  • the CRS transmit power information such as the Macro cell or the Pico cell
  • the Femto cell can know the above information through the SI interface.
  • the base station subtracts the CRS transmission power information of the corresponding neighboring cell according to the first RSRP, and obtains a Pathloss value between the local cell and the neighboring cell.
  • the specific use mode 1 or mode 2 can be set in the protocol, or can be notified by the upper layer.
  • the value of the interference parameter includes the RIP value.
  • the base station may compare the RIP value with the second threshold corresponding to the local cell, and determine whether the RIP value is smaller than the corresponding second threshold. If yes, determine that the cell can perform the uplink and downlink configuration autonomously, otherwise, determine that the cell cannot perform the autonomous process. Up and down configuration.
  • the second threshold corresponding to the cell here may be specified in the protocol in advance. The second threshold can also be updated as needed.
  • step 601 the base station measures all the received interferences except the useful signal of the local cell by using the uplink subframe to obtain a RIP value.
  • the base station measures the received RIP value in the uplink subframe, and the RIP value is all the interference values except the useful signal in the local area, including thermal noise.
  • the interference parameter value includes a CQI value and/or an RSRQ value, where the CQI value and/or the RSRQ value include three types: only the CQI value, only the RSRQ value, including the CQI value and the RSRQ value.
  • the base station may compare the CQI value with the third threshold corresponding to the current cell, and determine whether the CQI value is smaller than the corresponding third threshold. If yes, determine that the cell can perform uplink and downlink independently. Configuration, otherwise it is determined that the cell cannot perform uplink and downlink configuration autonomously.
  • the base station may compare the RSRQ value with the fourth threshold corresponding to the current cell, and determine whether the RSRQ value is smaller than the corresponding fourth threshold. If yes, determine that the cell can perform the uplink and downlink configuration autonomously. Otherwise, it is determined that the cell cannot perform uplink and downlink configuration autonomously.
  • the base station may compare the CQI value with the third threshold corresponding to the current cell, compare the RSRQ value with the fourth threshold corresponding to the current cell, and determine whether the CQI value is smaller than the corresponding Whether the three thresholds and the RSRQ value are smaller than the corresponding fourth threshold, if yes, determining that the local cell can perform the uplink and downlink configuration autonomously, otherwise determining that the target cell cannot perform the uplink and downlink configuration autonomously.
  • the third threshold and the fourth threshold corresponding to the cell may be specified in the protocol in advance.
  • the third threshold and the fourth threshold may also be updated as needed.
  • the base station receives the CQI value and/or the RSRQ value reported from the UE, and reports the received CQI value and/or the RSRQ value to the network measuring device.
  • the cell base station collects the periodic or aperiodic broadband CQI feedback information reported by the UE in the local area, and/or collects the RSRQ information reported by the UE in the local area, for example, the base station may trigger the UE. Reporting; You can also set a time for the UE to report periodically. If the value of the wideband CQI reported by the UE is lower than the preset threshold, or the RSRQ value reported by the UE is lower than the preset threshold, the UE in the local area may receive the cross interference of the neighboring UE.
  • the measurement result may be processed, for example, using a time smoothing method to measure whether the measurement result in a period of time is lower than the target value, or, for example, counting the measurement results of a plurality of users and then performing the judgment.
  • step 602 the method further includes:
  • the base station After determining that the cell can perform the uplink and downlink configuration autonomously, the base station performs the uplink and downlink configuration autonomously; After determining that the cell cannot perform the uplink and downlink configuration autonomously, the base station performs uplink and downlink configuration according to the configuration information.
  • the uplink and downlink configuration performed by the base station according to the configuration information includes, but is not limited to, one of the following modes:
  • the base station performs the uplink and downlink configuration according to the default configuration information.
  • the base station performs the uplink and downlink configuration according to the unified configuration information sent by the network side.
  • the base station performs the uplink and downlink configuration according to the configuration information of the neighboring area with the interference.
  • Step 602 may further include:
  • the cell base station that performs the decision sends the measurement result to the neighboring cell base station, and the content of the transmission includes but is not limited to one or more of the following contents: the local area ID, the target cell ID (ie, the cell receiving the information), and various measurements. Quantity results, preset decision thresholds for various measurements, etc.
  • the information may be sent through the X2 interface or the S1 interface between the base stations; or the determined cell base station sends the measurement value decision result to the adjacent cell base station, and the content sent includes but is not limited to one or more of the following contents.
  • Kind The ID of the area, the target cell ID (that is, the cell receiving the information), the judgment result of each measurement amount, and the like.
  • a certain measurement quantity it is judged whether there is or may be a cross-interference of the neighboring area, and then two states of "existing interference” or “no interference” are transmitted to the neighboring cell base station. For example, a certain level of quantization is performed on a certain measurement quantity, such as quantization into "high-interference”, “medium interference”, “low-interference”, etc., and then the quantized information is transmitted to the neighboring cell base station.
  • the base station in the embodiment of the present invention may be a macro base station, a micro base station, a home base station, or the like.
  • the embodiment of the present invention further provides a system for determining an uplink and downlink configuration and a base station for determining an uplink and downlink configuration, and the method for solving the problem by using the device and the distributed determining uplink and downlink
  • the configuration methods are similar, so the implementation of these devices can be referred to the implementation of the method, and the repeated description will not be repeated.
  • the system for determining uplink and downlink configuration by using the embodiment of the present invention includes a base station 30 and a terminal 40.
  • the base station 30 is configured to determine a value of the interference parameter of the local cell, and determine, according to the value of the interference parameter of the local cell, whether the current cell can perform the uplink and downlink configuration autonomously.
  • the terminal 40 is configured to measure and report the CQI value and/or the RSRQ value.
  • the terminal 40 can measure and report the CQI value and/or the RSRQ value under the trigger of the base station 30.
  • the CQI value and/or the RSRQ value can also be measured and measured according to the set time.
  • the base station in the embodiment of the present invention for determining the uplink and downlink configuration includes: a second parameter value determining module 300 and a second configuration determining module 310.
  • the second parameter value determining module 300 is configured to determine a value of the interference parameter of the local cell.
  • the second configuration determining module 310 is configured to determine, according to the interference parameter value of the local cell, whether the local cell can perform the uplink and downlink configuration autonomously.
  • the second configuration determining module 310 compares the value of the interference parameter with the threshold corresponding to the current cell, and determines whether the current cell can perform the uplink and downlink configuration autonomously according to the comparison result.
  • the value of the interference parameter includes but is not limited to one or more of the following parameter values:
  • the value of the interference parameter includes an RSRP value, where the RSRP value is the first RSRP value of the reference signal of the neighboring cell received by the local cell.
  • the second configuration determining module 310 may compare the first RSRP value with the first threshold corresponding to the local cell, and determine whether the first RSRP value is smaller than the corresponding first threshold, and if yes, determine that the local cell can perform uplink and downlink configuration autonomously. Otherwise, it is determined that the cell cannot perform uplink and downlink configuration autonomously.
  • the first threshold corresponding to the cell here may be specified in the protocol in advance.
  • the first threshold can also be updated as needed.
  • the second parameter value determining module 300 may measure the received neighbor cell reference signal in the measurement interval or through the uplink subframe to obtain a first RSRP value.
  • the second parameter value determining module 300 determines that the neighboring cell receives the second RSRP value of the local cell reference signal.
  • the second configuration determining module 310 determines, according to the first RSRP value and the second RSRP value, whether the current cell can Independently perform uplink and downlink configuration.
  • the second configuration determining module 310 compares the first RSRP value with the first threshold corresponding to the local cell, and compares the second RSRP value with the first threshold corresponding to the neighboring cell, and determines whether the RSRP values of the two cells are Both are smaller than the corresponding thresholds. If yes, it is determined that the cell can perform the uplink and downlink configuration autonomously, otherwise it is determined that the cell cannot perform the uplink and downlink configuration autonomously.
  • the first threshold corresponding to the cell here may be specified in the protocol in advance.
  • the first threshold can also be updated as needed.
  • the second parameter value determining module 300 determines the second RSRP value in two ways:
  • the first parameter determining module 300 obtains the second RSRP value through the X2 interface or the S1 interface.
  • the second parameter value determining module 300 determines the Pathloss value between the local cell and the neighboring cell according to the transmit power value of the neighboring cell and the first RSRP value, according to the transmit power value of the local cell, and the determined local cell and A Pathloss value between the neighboring cells determines a second RSRP value.
  • the second parameter value determining module 300 obtains the uplink and downlink subframe allocation information of the neighboring cell and the CRS transmission power information of the neighboring cell through the network interface, for example, a macro cell or a Pico cell, and the above information can be obtained through the X2 interface. Femto cell, the above information can be obtained through the SI interface.
  • the specific use mode 1 or mode 2 can be set in the protocol, or can be notified by the upper layer.
  • the value of the interference parameter includes the RIP value.
  • the second configuration determining module 310 may compare the RIP value with the second threshold corresponding to the local cell, and determine whether the RIP value is smaller than the corresponding second threshold. If yes, determine that the local cell can perform uplink and downlink configuration autonomously, otherwise determine the small The zone cannot independently perform uplink and downlink configurations.
  • the second threshold corresponding to the cell here may be specified in the protocol in advance.
  • the second threshold can also be updated as needed.
  • the second parameter value determining module 300 measures all received interferences other than the useful signal of the local cell through the uplink subframe to obtain a RIP value.
  • the interference parameter value includes a CQI value and/or an RSRQ value, where the CQI value and/or the RSRQ value include three types: only the CQI value, only the RSRQ value, including the CQI value and the RSRQ value.
  • the second configuration determining module 310 may compare the CQI value with the third threshold corresponding to the local cell, and determine whether the CQI value is less than the corresponding third threshold, and if yes, determine the current cell.
  • the uplink and downlink configuration can be performed autonomously, otherwise it is determined that the cell cannot perform the uplink and downlink configuration autonomously.
  • the second configuration determining module 310 may compare the RSRQ value with the fourth threshold corresponding to the current cell, determine whether the RSRQ value is smaller than the corresponding fourth threshold, and if yes, determine that the cell can be autonomous. Perform uplink and downlink configuration. Otherwise, determine that the cell cannot perform uplink and downlink configuration autonomously.
  • the second configuration determining module 310 may compare the CQI value with a third threshold corresponding to the current cell, compare the RSRQ value with a fourth threshold corresponding to the current cell, and determine the CQI value. Whether it is less than the corresponding third threshold and whether the RSRQ value is in the corresponding fourth threshold. If yes, it is determined that the local cell can perform the uplink and downlink configuration autonomously, otherwise it is determined that the target cell cannot perform the uplink and downlink configuration autonomously.
  • the third threshold and the fourth threshold corresponding to the cell may be specified in the protocol in advance.
  • the third threshold and the fourth threshold may also be updated as needed.
  • the second parameter value determining module 300 receives the CQI value and/or the RSRQ value reported from the UE, and reports the received CQI value and/or the RSRQ value to the network measuring device.
  • the second configuration determining module 310 after determining that the cell can perform the uplink and downlink configuration autonomously, performs the uplink and downlink configuration autonomously; after determining that the current cell cannot perform the uplink and downlink configuration, the second configuration determining module 310 performs the uplink and the downlink according to the configuration information. Line configuration.
  • the second configuration determining module 310 performs uplink and downlink configuration according to the configuration information, including but not limited to one of the following manners:
  • the second configuration determining module 310 may further send the measurement result to the neighboring cell base station, and the sending content includes but is not limited to one or more of the following contents: a local area ID, a target cell ID (ie, a cell that receives information), Various measurements As a result, preset decision threshold values of various measurement amounts, and the like.
  • the information may be sent through the X2 interface or the S1 interface between the base stations; or the measurement result decision result may be sent to the neighboring cell base station, and the content sent includes but not limited to one or more of the following contents: , the target cell ID (ie, the cell receiving the information), the judgment result of each measurement amount, and the like.
  • a certain measurement quantity it is judged whether there is or may be a cross-interference of the neighboring area, and then two states of "existing interference” or "no interference" are transmitted to the neighboring cell base station. For example, a certain level of quantization is performed on a certain measurement quantity, for example, quantized into "high-interference”, “medium-interference”, “low-interference”, etc., and then the quantized information is transmitted to the neighboring cell base station.
  • Centralized and distributed can be arranged in one network at the same time, you can choose to use centralized or distributed as needed; you can also use centralized and distributed at the same time. That is to say, the base station configured in the network can include the functions of the base station in the centralized mode, the function of the base station in the distributed base station, and the functions of the base station in the centralized and distributed bases; A physical device or virtual device or logical node with centralized network side device functionality can be configured in the network.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • computer-usable storage interfaces including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the dynamic uplink and downlink configuration can be normally operated, and the interference between adjacent neighbors can be improved in a dynamic uplink and downlink configuration environment. System efficiency.

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Abstract

提供一种用于对干扰进行检测以确定小区是否能够独立进行上下行配置的确定上下行配置的方法、系统和设备。该方法包括:网络侧设备确定目标小区的干扰参数值(201);所述网络侧设备根据目标小区的干扰参数值确定目标小区是否能够自主进行上下行配置(202)。利用本发明,能够正常运行动态上下行配置,并且能够在动态上下行配置环境中减小邻区之间的干扰,提高系统效率。

Description

一种确定上下行配置的方法、 系统和设备 本申请要求在 2010年 12月 2日提交中国专利局、 申请号为 201010571151.4、 发明名称为
"一种确定上下行配置的方法、 系统和设备"的中国专利申请的优先权, 其全部内容通过 I用结 合在本申请中。 技术领域 本发明涉及无线通信技术领域, 特别涉及一种确定上下行配置的方法、 系统和设备。 背景技术 对于蜂窝系统釆用的基本的双工方式, 时分双工 (Time division duplex, TDD )模式 是指上下行链路使用同一个工作频带, 在不同的时间间隔上进行上下行信号的传输, 上下 行之间有保护间隔 ( Guard Period, GP ); 频分双工 ( Frequency division duplex, FDD )模 式则指上下行链路使用不同的工作频带, 可以在同一个时刻在不同的频率载波上进行上下 行信号的传输, 上下行之间有保护带宽 (Guard Band, GB )。
长期演进(Long Term Evolution, LTE ) TDD系统的帧结构稍复杂一些, 如图 1所示, 一个无线帧长度为 10ms, 包含特殊子帧和常规子帧两类共 10个子帧, 每个子帧为 lms。 特 殊子帧分为 3个子帧: 下行导频时隙 (Downlink Pilot Slot, DwPTS )用于传输主同步信号 ( Primary Synchronized Signal , PSS )、 物理下行控制信道 (Physical Downlink Control Channel, PDCCH )、 物理混合自动请求重传指示信道( Physical HARQ Indication Channel , PHICH )、 物理控制格式指示信道(Physical Control Format Indication Channel, PCFICH )、 物理下行链路共享信道(Physical Downlink Shared Channel, PDSCH )等; GP用于下行和 上行之间的保护间隔); 上行导频时隙 (Uplink Pilot Slot, UpPTS )用于传输探测用参考信 号( Sounding Reference Signal, SRS )、物理随机接入信道( Physical Random Access Channel, PRACH ) 等。 常规子帧包括上行子帧和下行子帧, 用于传输上行 /下行控制信令和业务数 据等。 其中, 在一个无线帧中, 可以配置两个特殊子帧, 分别位于子帧 1和 6, 也可以配置 一个特殊子帧, 位于子帧 1。 子帧 0和子帧 5以及特殊子帧中的 DwPTS子帧总是用作下行传 输,子帧 2以及特殊子帧中的 UpPTS子帧总是用于上行传输,其他子帧可以依据需要配置为 用作上行传输或者下行传输。
TDD系统中上行和下行传输使用相同的频率资源, 在不同的子帧上传输上行 /下行信 号。 在常见的 TDD系统中, 包括 3G的时分同步码分多址接入( Time Division Synchronized Code Division Multiple Access, TD-SCDMA )系统和 4G的 TD-LTE系统, 上行和下行子帧的 划分是静态或半静态的, 通常的做法是在网络规划过程中根据小区类型和大致的业务比例 确定上下行子帧比例划分并保持不变。 这在宏小区大覆盖的背景下是较为筒单的做法, 并 且也较为有效。 而随着技术发展, 越来越多的微小区(Pico cell )家庭基站(Home NodeB ) 等低功率基站被部署用于提供局部的小覆盖, 在这类小区中, 用户数量较少, 且用户业务 需求变化较大, 因此小区的上下行业务比例需求存在动态改变的情况。
为了适应这种动态的业务需求比例变化, 一些研究者开始考虑对 TDD系统进行优化, 引入更为动态的上下行配置方案, 期望能够适应业务比例的变化, 提高系统效率。 比如在 一个 TDD网络中,宏小区釆用上下行较为对称的比例( DL:UL=3:2 ),部分毫微微小区( femto cell ) 由于用户下载需求较多, 配置为下行为主的比例 (DL:UL=4: 1 ), 另一部分 femto cell 由于用户上传需求较多, 配置为上行为主的比例 (DL:UL=2:3 )。
如果相邻的小区配置了不同的上下行比例, 则可能出现交叉时隙千扰。 在图 2中, 宏 小区在发送下行信号的时隙上, femto cell用于上行信号接收, 则两小区之间出现:
基站 -基站千扰, femto基站直接接收到 Macro基站的下行信号, 将严重影响 femto基站 接收本地 UE ( Local UE, L-UE )上行信号的盾量。
上述千扰将严重影响到整个网络的性能, 而现有技术中并没有针对这种千扰问题的解 决方案。 发明内容 本发明实施例提供一种确定上下行配置的方法、 系统和设备, 用以对千扰进行检测, 从而确定小区是否能够独立进行上下行配置。
本发明实施里提供的一种确定上下行配置的方法, 包括:
网络侧设备确定目标小区的千扰参数值;
所述网络侧设备根据目标小区的千扰参数值, 确定该目标小区是否能够自主进行上下 行配置。
本发明实施里提供的一种确定上下行配置的设备, 包括:
第一参数值确定模块, 用于确定目标小区的千扰参数值;
第一配置确定模块, 用于根据目标小区的千扰参数值, 确定该目标小区是否能够自主 进行上下行配置。
本发明实施里提供的一种基站, 包括:
处理模块, 用于确定千扰参数值, 其中, 所述千扰参数值用于指示网络侧设备确定本 小区是否能够自主进行上下行配置;
上报模块, 用于上 4艮确定的千扰参数值。 本发明实施里提供的一种确定上下行配置的系统, 包括基站, 该系统还包括: 网络侧设备, 用于确定目标小区的千扰参数值, 根据目标小区的千扰参数值, 确定目 标小区是否能够自主进行上下行配置。
本发明实施里提供的另一种确定上下行配置的方法, 包括:
基站确定本小区的千扰参数值;
所述基站根据本小区的千扰参数值, 确定本小区是否能够自主进行上下行配置。 本发明实施里提供的另一种确定上下行配置的设备, 包括:
第二参数值确定模块, 用于确定本小区的千扰参数值;
第二配置确定模块, 用于根据本小区的千扰参数值, 确定本小区是否能够自主进行上 下行配置。
由于通过小区的千扰参数值, 判定小区是否能够独立进行上下行配置, 使得动态的上 下行配置能够正常运行, 并且在动态的上下行配置环境中能够减小邻区之间的千扰, 提高 系统效率。 附图说明 图 1为 TD-LTE系统帧结构示意图;
图 2为交叉时隙千扰示意图;
图 3为本发明实施例釆用集中式确定上下行配置的方法流程示意图;
图 4为本发明实施例釆用集中式确定上下行配置的系统示意图;
图 5为本发明实施例釆用集中式确定上下行配置的网络侧设备结构示意图; 图 6为本发明实施例釆用集中式确定上下行配置的基站结构示意图;
图 7为本发明实施例釆用分布式确定上下行配置的方法流程示意图;
图 8为本发明实施例釆用分布式确定上下行配置的系统示意图;
图 9为本发明实施例釆用分布式确定上下行配置的基站结构示意图。 具体实施方式 本发明实施例网络侧设备根据目标小区的千扰参数值, 确定目标小区是否能够自主进 行上下行配置; 或基站根据本小区的千扰参数值, 确定本小区是否能够自主进行上下行配 置。 由于通过小区的千扰参数值, 判定小区是否能够独立进行上下行配置, 使得动态的上 下行配置能够正常运行, 并且在动态的上下行配置环境中能够减小邻区之间的千扰, 提高 系统效率。
其中, 本发明实施例能够应用于 TDD系统中 (比如 TD-LTE系统), 也可以应用于其他 需要动态调整子帧上下行配置的系统中, 例如 TD-SCDMA系统及其后续演进系统, 微波存 取全球互通 ( Worldwide Interoperability for Microwave Access, WiMAX ) 系统及其后续演 进系统等。。
在下面的说明过程中, 先从网络侧和终端侧的配合实施进行说明, 最后分别从网络侧 与终端侧的实施进行说明, 但这并不意味着二者必须配合实施, 实际上, 当网络侧与终端 侧分开实施时, 也解决了分别在网络侧、 终端侧所存在的问题, 只是二者结合使用时, 会 获得更好的技术效果。
下面结合说明书附图对本发明实施例作进一步详细描述。
如图 3所示, 本发明实施例釆用集中式确定上下行配置的方法包括下列步骤: 步骤 201、 网络侧设备确定目标小区的千扰参数值。
步骤 202、 网络侧设备根据目标小区的千扰参数值, 确定目标小区是否能够自主进行 上下行配置。
本发明实施例集中式是在一定区域内设置集中管理节点 (即本发明实施例的网络侧设 备), 用于判决相邻小区之间的千扰水平。 该集中管理节点已知其管辖的各个小区的地理 位置和相互之间的相邻关系, 以及各个基站的类型, 发射功率等信息。 基站将测量到的各 个相邻小区的千扰参数值通过网络接口发送给集中管理节点, 该节点处预存千扰强度门限 值, 通过对相邻小区之间测量结果与千扰门限值的比较判定两个相邻小区之间如果配置不 同的上下行配置, 是否会导致不可接受的交叉千扰。
步骤 202中, 网络侧设备将千扰参数值与目标小区对应的阈值进行比较, 根据比较结 果确定目标小区是否能够自主进行上下行配置。
其中, 千扰参数值包括但不限于下列参数值中的一种或多种:
参考信号接收功率( Reference signal received power, RSRP )值、千扰接收功率( Received Interference Power, RIP )值、 信道盾量指示 ( Channel Quality Indicator, CQI )值和参考信 号接收盾量( Reference Signal Received Quality, RSRQ )值。
下面分别进行说明。
情况一、 千扰参数值包括 RSRP值, 这里的 RSRP值是目标小区接收邻小区参考信号的 第一 RSRP值。
其中, 网络侧设备可以将第一 RSRP值与目标小区对应的第一阈值进行比较,判断第一 RSRP值是否小于对应的第一阈值, 如果是, 则确定目标小区能够自主进行上下行配置, 否 则确定目标小区不能自主进行上下行配置。
比如图 2所示, 网络侧设备已知 Macro cell和一个 femto cell之间是相邻关系, Macro cell 上报检测到接收 Femto cell参考信号的 RSRP强度为 X dBm。 网络侧设备预设了 Macro cell可 允许的千扰水平值为 M dBm (该门限通过仿真评估或者网络实测得到), 如果 X < M, 则确 定 Macro cell能够自主进行上下行配置。
这里小区对应的第一阈值可以预先在协议中规定。 根据需要还可以对第一阈值进行更 新。
步骤 201中, 网络侧设备确定的第一 RSRP值是目标小区所属的基站测量并上报的。 在实施中, 基站在测量间隔内或通过上行子帧, 对收到的邻小区参考信号进行测量, 得到第一 RSRP值。
具体的, 如果基站在测量间隔内, 对收到的邻小区参考信号进行测量, 得到第一 RSRP 值, 则可以为基站配置测量间隔 ( e B measurement gap ), 定义为一段用于基站测量的时 间, 例如 lms或者 5ms。 在测量间隔时间内, 基站测量相邻小区的基站发射信号强度, 例如 测量 RSRP值。如果基站在测量之前未识别出相邻小区,则基站需要在该测量间隔内完成相 邻小区搜索和同步的工作, 因此需要配置较长的测量间隔, 例如 5ms或以上; 如果基站在 测量之前已经搜索到相邻的小区, 则可以配置较短的测量间隔, 例如 5ms以下。 在测量间 隔内, 基站不进行任何的本区信号发送和接收。 若测量到目标小区接收某一邻区的第一 RSRP值高于预先设定的门限值,则识别出该邻小区如果与本区上下行配比不同,该邻小区 的发射信号将对本区的上行接收造成交叉千扰。
如果基站通过上行子帧, 对收到的邻小区参考信号进行测量, 得到第一 RSRP值, 则基 站在上行子帧进行邻区基站发射信号测量,例如测量 RSRP值。这种方案不需要配置专用的 测量间隔, 基站在需要进行测量的上行子帧停止本小区用户的上行调度即可。 由于可用的 连续上行子帧较少, 若测量到目标小区接收某一邻区的第一 RSRP值高于预先设定的门限 值, 则识别出该邻小区如果与本区上下行配比不同, 该邻小区的发射信号将对本区的上行 接收造成交叉千扰。
较佳的, 步骤 202之前还包括:
网络侧设备确定目标小区的邻小区接收目标小区参考信号的第二 RSRP值;相应的,步 骤 202中, 网络侧设备根据第一 RSRP值和第二 RSRP值,确定目标小区是否能够自主进行上 下行配置。
具体的, 网络侧设备将第一 RSRP值与目标小区对应的第一阈值进行比较, 以及将第二 RSRP值与邻小区对应的第一阈值进行比较, 判断两个小区的 RSRP值是否都小于对应的第 一阈值, 如果是, 则确定第一小区能够自主进行上下行配置, 否则确定目标小区不能自主 进行上下行配置。 如果是, 同时还可以确定邻小区能够自主进行上下行配置, 否则确定邻 小区不能自主进行上下行配置。
比如图 2所示, 各个基站上报检测到的相邻基站 RSRP信息, 网络侧设备已知 Macro cell 和一个 femto cell之间是相邻关系, 并获知 Macro cell发射功率为 46dBm, femto cell发射功率 为 20dBm, Macro cell上报检测到的 Femto cell RSRP强度为 X dBm, femto cell上报检测到 Macro cell的 RSRP强度为 Y dBm。 网络侧设备预设了 Macro cell可允许的千扰水平值为 M dBm, femto cell可允许的千扰水平值为 N dBm。网络侧设备得到测量信息后,当 Χ<Μ Υ<Ν 时集中判决两小区之间可以配置不同的上下行配置。
这里小区对应的第一阈值可以预先在协议中规定。 根据需要还可以对第一阈值进行更 新。
其中, 网络侧设备确定第二 RSRP值的方式有两种:
方式一、邻小区所属的基站上报第二 RSRP值; 相应的, 网络侧设备接收邻小区所属的 基站测量并上 4艮的第二 RSRP值。
邻小区所属的基站确定第二 RSRP值的方式与目标小区所属的基站确定第一 RSRP值的 方式相同, 在此不再赘述。
方式二、 网络侧设备接收基站上报的目标小区和邻小区之间的 Pathloss值,根据目标小 区的发射功率值, 以及目标小区和邻小区之间的 Pathloss值, 确定第二 RSRP值。
具体的, 目标小区所属的基站上报目标小区和邻小区之间的 Pathloss值; 网络侧设备在 收到目标小区和邻小区之间的 Pathloss值后 , 将目标小区的发射功率值与 Pathloss值做差, 得到的值作为第二 RSRP值。
在实施中, 基站通过网络接口获知相邻小区的上下行子帧分配信息以及相邻小区的小 区特定参考信号 (Cell-specific Reference Signal, CRS)发射功率信息, 比如: Macro cell或者 Pico cell, 可以通过 X2接口获知如上信息; Femto cell, 可以通过 SI接口获知如上信息。 然 后基站根据第一 RSRP与对应相邻小区的 CRS发射功率信息相减,得到本小区与相邻小区之 间的 Pathloss值。
具体釆用方式一还是方式二可以在协议中设定, 也可以由高层通知。
情况二、 千扰参数值包括 RIP值。
其中, 网络侧设备可以将 RIP值与目标小区对应的第二阈值进行比较, 判断 RIP值是否 小于对应的第二阈值, 如果是, 则确定目标小区能够自主进行上下行配置, 否则确定目标 小区不能自主进行上下行配置。
这里小区对应的第二阈值可以预先在协议中规定。 根据需要还可以对第二阈值进行更 新。
步骤 201中, 网络侧设备确定的 RIP值是目标小区所属的基站测量并上报的。
在实施中,基站通过上行子帧,对收到的除本小区有用信号之外的所有千扰进行测量, 得到 RIP值。
具体的, 基站在上行子帧测量接收到的 RIP值, 该 RIP值为除去本区有用信号之外的所 有千扰值, 包括热噪声等。
情况三、 千扰参数值包括 CQI值和 /或 RSRQ值, 这里 CQI值和 /或 RSRQ值的包括三 种: 只包括 CQI值、 只包括 RSRQ值、 包括 CQI值和 RSRQ值。
其中,如果千扰参数值包括 CQI值, 网络侧设备可以将 CQI值与目标小区对应的第三阈 值进行比较, 判断 CQI值是否小于对应的第三阈值, 如果是, 则确定目标小区能够自主进 行上下行配置, 否则确定目标小区不能自主进行上下行配置。
如果千扰参数值包括 RSRQ值, 网络侧设备可以将 RSRQ值与目标小区对应的第四阈值 进行比较, 判断 RSRQ值是否小于对应的第四阈值, 如果是, 则确定目标小区能够自主进 行上下行配置, 否则确定目标小区不能自主进行上下行配置。
如果千扰参数值包括 CQI值和 RSRQ值, 网络侧设备可以将 CQI值与目标小区对应的第 三阈值进行比较, 将 RSRQ值与目标小区对应的第四阈值进行比较, 判断 CQI值是否小于对 应的第三阈值以及 RSRQ值是否小于对应的第四阈值, 如果是, 则确定目标小区能够自主 进行上下行配置, 否则确定目标小区不能自主进行上下行配置。
这里小区对应的第三阈值和第四阈值可以预先在协议中规定。 根据需要还可以对第三 阈值和第四阈值进行更新。
步骤 201中, 网络侧设备确定的 CQI值和 /或 RSRQ值是目标小区所属的基站上报的。 在实施中, 基站接收来自 UE上报的 CQI值和 /或 RSRQ值, 并将收到的 CQI值和 /或
RSRQ值上报给网络测设备。
具体的, 为了识别 UE对 UE的千扰程度, 小区基站收集本区 UE上报的周期或者非周期 的宽带 CQI反馈信息, 和 /或收集本区 UE上报的 RSRQ信息等, 比如: 基站可以触发 UE上 报; 也可以设置一个时间让 UE周期上报。 若 UE上报的宽带 CQI值低于预先设定的门限, 或 者 UE上报的 RSRQ值低于预先设定的门限, 则本区 UE可能收到邻区 UE的交叉千扰。 为了 使得判定结果更为准确, 可以对测量结果进行处理, 例如使用时间平滑的方式统计一段时 间内的测量结果是否低于目标值, 或者例如统计多个用户的测量结果再进行判断。
根据需要可以只使用情况 清况三中的部分, 也可以全部都使用。 不管是部分还是 全部, 只要每个千扰参数值都满足目标小区能够自主进行上下行配置的条件, 就确定目标 小区能够自主进行上下行配置。
步骤 202之后还包括:
在确定目标小区能够自主进行上下行配置后, 网络侧设备通知目标小区自主进行上下 行配置, 进一步还可以通知与目标小区相邻的每个小区;
在确定目标小区不能自主进行上下行配置后, 网络侧设备将统一的上下行配置信息通 知目标小区, 进一步还可以通知与目标小区相邻的每个小区。
基站根据网络侧设备的通知对上下行配置进行设定, 并建立本小区, 开始向 UE提供通 信服务。
其中, 本发明实施例的网络侧设备可以是高层设备, 比如无线链路控制 (Radio Link Control, RNC )设备; 还可以是其他网络侧设备或虚拟设备或逻辑节点; 或新的网络侧设 备。 本发明实施例的基站可以是宏基站, 微基站、 家庭基站等。
基于同一发明构思, 本发明实施例中还提供了釆用集中式确定上下行配置的系统、 釆 用集中式确定上下行配置的网络侧设备和釆用集中式确定上下行配置的基站, 由于这些设 备解决问题的原理与釆用集中式确定上下行配置的方法相似, 因此这些设备的实施可以参 见方法的实施, 重复之处不再赘述。
如图 4所示, 本发明实施例釆用集中式确定上下行配置的系统包括: 网络侧设备 10和 基站 20。
网络侧设备 10, 用于确定目标小区的千扰参数值, 根据目标小区的千扰参数值, 确定 目标小区是否能够自主进行上下行配置。
目标小区所属的基站 20用于: 上报目标小区的千扰参数值。
网络侧设备 10将千扰参数值与目标小区对应的阈值进行比较, 根据比较结果确定目标 小区是否能够自主进行上下行配置。
其中, 千扰参数值包括但不限于下列参数值中的一种或多种:
RSRP值、 RIP值、 CQI值和 RSRQ值。
下面分别进行说明。
情况一、 千扰参数值包括 RSRP值, 这里的 RSRP值是目标小区接收邻小区参考信号的 第一 RSRP值。
其中, 网络侧设备 10可以将第一 RSRP值与目标小区对应的第一阈值进行比较,判断第 一 RSRP值是否小于对应的第一阈值, 如果是, 则确定目标小区能够自主进行上下行配置, 否则确定目标小区不能自主进行上下行配置。
网络侧设备确定的第一 RSRP值是目标小区所属的基站 20测量并上报的。
在实施中,基站 20在测量间隔内或通过上行子帧,对收到的邻小区参考信号进行测量, 得到第一 RSRP值。
较佳的, 网络侧设备 10确定目标小区的邻小区接收目标小区参考信号的第二 RSRP值, 根据第一 RSRP值和第二 RSRP值, 确定目标小区是否能够自主进行上下行配置。
具体的, 网络侧设备 10将第一 RSRP值与目标小区对应的第一阈值进行比较, 以及将第 二 RSRP值与邻小区对应的第一阈值进行比较, 判断两个小区的 RSRP值是否都小于对应的 第一阈值, 如果是, 则确定第一小区能够自主进行上下行配置, 否则确定目标小区不能自 主进行上下行配置。 如果是, 同时还可以确定邻小区能够自主进行上下行配置, 否则确定 邻小区不能自主进行上下行配置。
其中, 网络侧设备 10确定第二 RSRP值的方式有两种:
方式一、邻小区所属的基站 20上报第二 RSRP值; 相应的, 网络侧设备 10接收邻小区所 属的基站 20测量并上报的第二 RSRP值。
方式二、 网络侧设备 10接收基站 20上报的目标小区和邻小区之间的 Pathloss值,根据目 标小区的发射功率值, 以及目标小区和邻小区之间的 Pathloss值, 确定第二 RSRP值。
具体的, 目标小区所属的基站 20上报目标小区和邻小区之间的 Pathloss值; 网络侧设备 10在收到目标小区和邻小区之间的 Pathloss值后 , 将目标小区的发射功率值与 Pathloss值做 差, 得到的值作为第二 RSRP值。
具体釆用方式一还是方式二可以在协议中设定, 也可以由高层通知。
情况二、 千扰参数值包括 RIP值。
其中, 网络侧设备 10可以将 RIP值与目标小区对应的第二阈值进行比较, 判断 RIP值是 否小于对应的第二阈值, 如果是, 则确定目标小区能够自主进行上下行配置, 否则确定目 标小区不能自主进行上下行配置。
网络侧设备 10确定的 RIP值是目标小区所属的基站 20测量并上报的。
在实施中, 基站 20通过上行子帧, 对收到的除本小区有用信号之外的所有千扰进行测 量, 得到 RIP值。
情况三、 千扰参数值包括 CQI值和 /或 RSRQ值, 这里 CQI值和 /或 RSRQ值的包括三 种: 只包括 CQI值、 只包括 RSRQ值、 包括 CQI值和 RSRQ值。 相应的, 本发明实施例的系 统还可以进一步包括终端。
网络侧设备 10确定的 CQI值和 /或 RSRQ值是目标小区所属的基站 20上报的。
在实施中, 基站 20接收来自终端上报的 CQI值和 /或 RSRQ值, 并将收到的 CQI值和 / 或 RSRQ值上报给网络测设备。
根据需要可以只使用情况 清况三中的部分, 也可以全部都使用。 不管是部分还是 全部, 只要每个千扰参数值都满足目标小区能够自主进行上下行配置的条件, 就确定目标 小区能够自主进行上下行配置。
在确定目标小区能够自主进行上下行配置后, 网络侧设备 10通知目标小区自主进行上 下行配置, 进一步还可以通知与目标小区相邻的每个小区;
在确定目标小区不能自主进行上下行配置后, 网络侧设备 10将统一的上下行配置信息 通知目标小区, 进一步还可以通知与目标小区相邻的每个小区。
基站 20根据网络侧设备 10的通知对上下行配置进行设定, 并建立本小区, 开始向 UE 提供通信服务。
如图 5所示, 本发明实施例釆用集中式确定上下行配置的网络侧设备包括: 第一参数 值确定模块 100和第一配置确定模块 110。
第一参数值确定模块 100, 用于确定目标小区的千扰参数值。
第一配置确定模块 110,用于根据目标小区的千扰参数值,确定目标小区是否能够自主 进行上下行配置。
其中,第一配置确定模块 110将千扰参数值与目标小区对应的阈值进行比较,根据比较 结果确定目标小区是否能够自主进行上下行配置。
千扰参数值包括 RSRP值、 RIP值、 CQI值和 RSRQ值中的一种或多种。
较佳的,如果千扰参数值包括目标小区接收邻小区参考信号的第一 RSRP值; 第一参数 值确定模块 100确定目标小区的邻小区接收目标小区参考信号的第二 RSRP值; 相应的, 第 一配置确定模块 110根据第一 RSRP值和第二 RSRP值,确定目标小区是否能够自主进行上下 行配置。
第一参数值确定模块 100接收基站测量并上报的第一 RSRP值。
第一参数值确定模块 100还用于接收基站上报的目标小区和邻小区之间的路径损耗
Pathloss值, 根据目标小区的发射功率值, 以及目标小区和邻小区之间的 Pathloss值, 确定 第二 RSRP值。
第一配置确定模块 110用于将第一 RSRP值与目标小区对应的第一阈值进行比较, 以及 将第二 RSRP值与邻小区对应的第一阈值进行比较,根据比较结果,确定目标小区是否能够 自主进行上下行配置。
如果千扰参数值包括 RIP值 , 第一参数值确定模块 100接收基站测量并上报的 RIP值。 如果千扰参数值包括 CQI值和 /或 RSRQ值, 第一参数值确定模块 100接收基站上报的 CQI值和 /或 RSRQ值。
其中,第一配置确定模块 110在确定第一小区能够自主进行上下行配置后,通知目标小 区自主进行上下行配置; 在确定第一小区不能自主进行上下行配置后, 将统一的上下行配 置信息通知目标小区。
如图 6所示, 本发明实施例釆用集中式确定上下行配置的基站包括: 处理模块 200和上 报模块 210。
处理模块 200 , 用于确定千扰参数值。
上报模块 210, 用于上报处理模块 200确定的千扰参数值。
如果千扰参数值包括本小区接收邻小区参考信号的第一 RSRP值;
处理模块 200在测量间隔内, 对收到的邻小区参考信号进行测量, 得到第一 RSRP值; 或通过上行子帧, 对收到的邻小区参考信号进行测量, 得到第一 RSRP值。
处理模块 200还可以根据邻小区的发射功率值和第一 RSRP值, 确定本小区和邻小区之 间的 Pathloss值; 相应的, 上报模块 210上"¾1¾111055值。
如果千扰参数值包括 RIP值; 处理模块 200通过上行子帧, 对收到的除本小区有用信号 之外的所有千扰进行测量, 得到 RIP值;
如果千扰参数值包括 CQI值和 /或 RSRQ值, 处理模块 200接收来自终端上报的 CQI值 和 /或 RSRQ值。
如图 7所示, 本发明实施例釆用分布式确定上下行配置的方法包括下列步骤: 步骤 601、 基站确定本小区的千扰参数值。
步骤 602、 基站根据本小区的千扰参数值, 确定本小区是否能够自主进行上下行配置。 本发明实施例分布式是在各个基站中预先设定本小区 (还可以包括邻小区)可以允许 的千扰水平值, 然后各个基站独立进行判断。
步骤 602中, 基站将千扰参数值与本小区对应的阈值进行比较, 根据比较结果确定本 小区是否能够自主进行上下行配置。
其中, 千扰参数值包括但不限于下列参数值中的一种或多种:
RSRP值、 RIP值、 CQI值和 RSRQ值。
下面分别进行说明。
情况一、 千扰参数值包括 RSRP值, 这里的 RSRP值是本小区接收邻小区参考信号的第 一 RSRP值。
其中, 基站可以将第一 RSRP值与本小区对应的第一阈值进行比较, 判断第一 RSRP值 是否小于对应的第一阈值, 如果是, 则确定本小区能够自主进行上下行配置, 否则确定本 小区不能自主进行上下行配置。
比如图 2所示, Macro基站检测到 Macro cell接收 Femto cell参考信号的 RSRP强度为 X dBm。 Macro基站预设了 Macro cell可允许的千扰水平值为 M dBm ,该门限通过仿真评估或 者网络实测得到, 如果 X < M, 则确定 Macro cell能够自主进行上下行配置。
这里小区对应的第一阈值可以预先在协议中规定。 根据需要还可以对第一阈值进行更 新。
步骤 601中, 基站在测量间隔内或通过上行子帧, 对收到的邻小区参考信号进行测量, 得到第一 RSRP值。
具体的, 如果基站在测量间隔内, 对收到的邻小区参考信号进行测量, 得到第一 RSRP 值, 则可以为基站配置测量间隔, 定义为一段用于基站测量的时间, 例如 lms或者 5ms。 在 测量间隔时间内,基站测量相邻小区的基站发射信号强度, 例如测量 RSRP值。 如果基站在 测量之前未识别出相邻小区, 则基站需要在该测量间隔内完成相邻小区搜索和同步的工 作, 因此需要配置较长的测量间隔, 例如 5ms或以上; 如果基站在测量之前已经搜索到相 邻的小区, 则可以配置较短的测量间隔, 例如 5ms以下。 在测量间隔内, 基站不进行任何 的本区信号发送和接收。若测量到本小区接收某一邻区的第一 RSRP值高于预先设定的门限 值, 则识别出该邻小区如果与本区上下行配比不同, 该邻小区的发射信号将对本区的上行 接收造成交叉千扰。
如果基站通过上行子帧, 对收到的邻小区参考信号进行测量, 得到第一 RSRP值, 则基 站在上行子帧进行邻区基站发射信号测量,例如测量 RSRP值。这种方案不需要配置专用的 测量间隔, 基站在需要进行测量的上行子帧停止本小区用户的上行调度即可。 由于可用的 连续上行子帧较少, 若测量到本小区接收某一邻区的第一 RSRP值高于预先设定的门限值, 则识别出该邻小区如果与本区上下行配比不同, 该邻小区的发射信号将对本区的上行接收 造成交叉千扰。
较佳的, 步骤 602之前还包括:
基站确定邻小区接收本小区参考信号的第二 RSRP值; 相应的, 步骤 602中, 基站根据 第一 RSRP值和第二 RSRP值, 确定本小区是否能够自主进行上下行配置。
具体的, 基站将第一 RSRP值与本小区对应的第一阈值进行比较, 以及将第二 RSRP值 与邻小区对应的第一阈值进行比较,判断两个小区的 RSRP值是否都小于对应的阈值,如果 是, 则确定与小区能够自主进行上下行配置, 否则确定与小区不能自主进行上下行配置。
这里小区对应的第一阈值可以预先在协议中规定。 根据需要还可以对第一阈值进行更 新。
比如图 2所示, Macro基站检测到 Macro cell接收 Femto cell的 RSRP强度为 X dBm, Macro 基站确定的 Femto cell接收 Macro cell的 RSRP强度为 Y dBm。 Macro基站预设了 Macro cell可 允许的千扰水平值为 M dBm, femto cell可允许的千扰水平值为 N dBm, 当 < 且丫<^^时集 中判决可以自行进行上下行配置。
其中, 基站确定第二 RSRP值的方式有两种:
方式一、 基站通过 X2接口或 S1接口获取第二 RSRP值。
比如基站可以通过 X2接口或 S1接口, 从相邻小区所属的基站处获取第二 RSRP值; 也 可以通过 X2接口或 S 1接口从本发明实施例集中式的网络侧设备处获取第二 RSRP值。
方式二、基站根据邻小区的发射功率值和第一 RSRP值,确定本小区和该邻小区之间的 Pathloss值, 根据本小区的发射功率值, 以及确定的本小区和该邻小区之间的 Pathloss值, 确定第二 RSRP值。
在实施中, 基站通过网络接口获知相邻小区的上下行子帧分配信息以及相邻小区的
CRS发射功率信息, 比如: Macro cell或者 Pico cell, 可以通过 X2接口获知如上信息; Femto cell, 可以通过 SI接口获知如上信息。 然后基站根据第一 RSRP与对应相邻小区的 CRS发射 功率信息相减, 得到本小区与相邻小区之间的 Pathloss值。
具体釆用方式一还是方式二可以在协议中设定, 也可以由高层通知。
情况二、 千扰参数值包括 RIP值。
其中, 基站可以将 RIP值与本小区对应的第二阈值进行比较, 判断 RIP值是否小于对应 的第二阈值, 如果是, 则确定本小区能够自主进行上下行配置, 否则确定本小区不能自主 进行上下行配置。 这里小区对应的第二阈值可以预先在协议中规定。 根据需要还可以对第二阈值进行更 新。
步骤 601中, 基站通过上行子帧, 对收到的除本小区有用信号之外的所有千扰进行测 量, 得到 RIP值。
具体的, 基站在上行子帧测量接收到的 RIP值, 该 RIP值为除去本区有用信号之外的所 有千扰值, 包括热噪声等。
情况三、 千扰参数值包括 CQI值和 /或 RSRQ值, 这里 CQI值和 /或 RSRQ值的包括三 种: 只包括 CQI值、 只包括 RSRQ值、 包括 CQI值和 RSRQ值。
其中,如果千扰参数值包括 CQI值,基站可以将 CQI值与本小区对应的第三阈值进行比 较, 判断 CQI值是否小于对应的第三阈值, 如果是, 则确定本小区能够自主进行上下行配 置, 否则确定本小区不能自主进行上下行配置。
如果千扰参数值包括 RSRQ值, 基站可以将 RSRQ值与本小区对应的第四阈值进行比 较, 判断 RSRQ值是否小于对应的第四阈值, 如果是, 则确定本小区能够自主进行上下行 配置, 否则确定本小区不能自主进行上下行配置。
如果千扰参数值包括 CQI值和 RSRQ值, 基站可以将 CQI值与本小区对应的第三阈值进 行比较, 将 RSRQ值与本小区对应的第四阈值进行比较, 判断 CQI值是否小于对应的第三阈 值以及 RSRQ值是否小于对应的第四阈值, 如果是, 则确定本小区能够自主进行上下行配 置, 否则确定目标小区不能自主进行上下行配置。
这里小区对应的第三阈值和第四阈值可以预先在协议中规定。 根据需要还可以对第三 阈值和第四阈值进行更新。
步骤 601中, 基站接收来自 UE上报的 CQI值和 /或 RSRQ值, 并将收到的 CQI值和 /或 RSRQ值上报给网络测设备。
具体的, 为了识别 UE对 UE的千扰程度, 小区基站收集本区 UE上报的周期或者非周期 的宽带 CQI反馈信息, 和 /或收集本区 UE上报的 RSRQ信息等, 比如: 基站可以触发 UE上 报; 也可以设置一个时间让 UE周期上报。 若 UE上报的宽带 CQI值低于预先设定的门限, 或 者 UE上报的 RSRQ值低于预先设定的门限, 则本区 UE可能收到邻区 UE的交叉千扰。 为了 使得判定结果更为准确, 可以对测量结果进行处理, 例如使用时间平滑的方式统计一段时 间内的测量结果是否低于目标值, 或者例如统计多个用户的测量结果再进行判断。
根据需要可以只使用情况 清况三中的部分, 也可以全部都使用。 不管是部分还是 全部, 只要每个千扰参数值都满足目标小区能够自主进行上下行配置的条件, 就确定目标 小区能够自主进行上下行配置。
步骤 602之后还包括:
在确定本小区能够自主进行上下行配置后, 基站自主进行上下行配置; 在确定本小区不能自主进行上下行配置后, 基站根据配置信息进行上下行配置。 基站根据配置信息进行上下行配置包括但不限于下列方式中的一种:
基站根据默认配置信息进行上下行配置; 基站根据网络侧下发的统一配置信息进行上 下行配置; 基站根据存在千扰的邻区的配置信息进行上下行配置。
基站根据判定结果对上下行配置进行设定, 并建立本小区, 开始向 UE提供通信服务。 步骤 602之后还可以包括:
进行判决的小区基站将测量结果发送给相邻的小区基站, 发送内容包括但不限于下列 内容中的一种或多种: 本区 ID, 目标小区 ID (即接收信息的小区), 各种测量量结果, 各 种测量量的预设判决门限值等。 信息的发送可以通过基站之间的 X2接口或者 S1接口; 或者, 进行判决的小区基站将测量值判决结果发送给相邻的小区基站, 发送的内容包 括但不限于下列内容中的一种或多种: 本区 ID, 目标小区 ID (即接收信息的小区), 各个 测量量的判决结果等。 例如根据某一测量量判断是否存在或可能存在邻区的交叉千扰, 然 后发送 "存在千扰" 或者 "不存在千扰" 两种状态给相邻小区基站。 例如对某一测量量进 行一定等级的量化, 比如量化成 "高千扰", "中千扰", "低千扰" 等然后将量化后的信息 发送给相邻小区基站。
其中, 本发明实施例的基站可以是宏基站, 微基站、 家庭基站等。
基于同一发明构思, 本发明实施例中还提供了釆用分布式确定上下行配置的系统和釆 用分布式确定上下行配置的基站, 由于这些设备解决问题的原理与釆用分布式确定上下行 配置的方法相似, 因此这些设备的实施可以参见方法的实施, 重复之处不再赘述。
如图 8所示, 本发明实施例釆用分布式确定上下行配置的系统包括基站 30和终端 40。 基站 30, 用于确定本小区的千扰参数值, 根据本小区的千扰参数值, 确定本小区是否 能够自主进行上下行配置。
其中, 如果千扰参数值是 CQI值和 /或 RSRQ值 , 终端 40用于测量并上报 CQI值和 /或 RSRQ值。
具体的, 终端 40可以在基站 30触发下测量并上报 CQI值和 /或 RSRQ值; 也可以根据设 定的时间, 周期测量并上 4艮 CQI值和 /或 RSRQ值。
如图 9所示, 本发明实施例釆用分布式确定上下行配置的基站包括: 第二参数值确定 模块 300和第二配置确定模块 310。
第二参数值确定模块 300, 用于确定本小区的千扰参数值。
第二配置确定模块 310, 用于根据本小区的千扰参数值, 确定本小区是否能够自主进 行上下行配置。
在实施中, 第二配置确定模块 310将千扰参数值与本小区对应的阈值进行比较, 根据 比较结果确定本小区是否能够自主进行上下行配置。 其中, 千扰参数值包括但不限于下列参数值中的一种或多种:
RSRP值、 RIP值、 CQI值和 RSRQ值。
下面分别进行说明。
情况一、 千扰参数值包括 RSRP值, 这里的 RSRP值是本小区接收邻小区参考信号的第 — RSRP值。
第二配置确定模块 310可以将第一 RSRP值与本小区对应的第一阈值进行比较, 判断第 一 RSRP值是否小于对应的第一阈值, 如果是, 则确定本小区能够自主进行上下行配置, 否 则确定本小区不能自主进行上下行配置。
这里小区对应的第一阈值可以预先在协议中规定。 根据需要还可以对第一阈值进行更 新。
第二参数值确定模块 300可以在测量间隔内或通过上行子帧, 对收到的邻小区参考信 号进行测量, 得到第一 RSRP值。
较佳的, 第二参数值确定模块 300确定邻小区接收本小区参考信号的第二 RSRP值; 相 应的, 第二配置确定模块 310根据第一 RSRP值和第二 RSRP值,确定本小区是否能够自主进 行上下行配置。
具体的, 第二配置确定模块 310将第一 RSRP值与本小区对应的第一阈值进行比较, 以 及将第二 RSRP值与邻小区对应的第一阈值进行比较, 判断两个小区的 RSRP值是否都小于 对应的阈值, 如果是, 则确定与小区能够自主进行上下行配置, 否则确定与小区不能自主 进行上下行配置。
这里小区对应的第一阈值可以预先在协议中规定。 根据需要还可以对第一阈值进行更 新。
第二参数值确定模块 300确定第二 RSRP值的方式有两种:
方式一、 第二参数值确定模块 300通过 X2接口或 S 1接口获取第二 RSRP值。
方式二、 第二参数值确定模块 300根据邻小区的发射功率值和第一 RSRP值, 确定本小 区和该邻小区之间的 Pathloss值,根据本小区的发射功率值, 以及确定的本小区和该邻小区 之间的 Pathloss值, 确定第二 RSRP值。
在实施中, 第二参数值确定模块 300通过网络接口获知相邻小区的上下行子帧分配信 息以及相邻小区的 CRS发射功率信息, 比如: Macro cell或者 Pico cell, 可以通过 X2接口获 知如上信息; Femto cell, 可以通过 SI接口获知如上信息。
具体釆用方式一还是方式二可以在协议中设定, 也可以由高层通知。
情况二、 千扰参数值包括 RIP值。
第二配置确定模块 310可以将 RIP值与本小区对应的第二阈值进行比较, 判断 RIP值是 否小于对应的第二阈值, 如果是, 则确定本小区能够自主进行上下行配置, 否则确定本小 区不能自主进行上下行配置。
这里小区对应的第二阈值可以预先在协议中规定。 根据需要还可以对第二阈值进行更 新。
第二参数值确定模块 300通过上行子帧, 对收到的除本小区有用信号之外的所有千扰 进行测量, 得到 RIP值。
情况三、 千扰参数值包括 CQI值和 /或 RSRQ值, 这里 CQI值和 /或 RSRQ值的包括三 种: 只包括 CQI值、 只包括 RSRQ值、 包括 CQI值和 RSRQ值。
其中, 如果千扰参数值包括 CQI值, 第二配置确定模块 310可以将 CQI值与本小区对应 的第三阈值进行比较, 判断 CQI值是否小于对应的第三阈值, 如果是, 则确定本小区能够 自主进行上下行配置, 否则确定本小区不能自主进行上下行配置。
如果千扰参数值包括 RSRQ值, 第二配置确定模块 310可以将 RSRQ值与本小区对应的 第四阈值进行比较, 判断 RSRQ值是否小于对应的第四阈值, 如果是, 则确定本小区能够 自主进行上下行配置, 否则确定本小区不能自主进行上下行配置。
如果千扰参数值包括 CQI值和 RSRQ值, 第二配置确定模块 310可以将 CQI值与本小区 对应的第三阈值进行比较, 将 RSRQ值与本小区对应的第四阈值进行比较, 判断 CQI值是否 小于对应的第三阈值以及 RSRQ值是否 、于对应的第四阈值, 如果是, 则确定本小区能够 自主进行上下行配置, 否则确定目标小区不能自主进行上下行配置。
这里小区对应的第三阈值和第四阈值可以预先在协议中规定。 根据需要还可以对第三 阈值和第四阈值进行更新。
第二参数值确定模块 300接收来自 UE上报的 CQI值和 /或 RSRQ值, 并将收到的 CQI值 和 /或 RSRQ值上报给网络测设备。
根据需要可以只使用情况 清况三中的部分, 也可以全部都使用。 不管是部分还是 全部, 只要每个千扰参数值都满足目标小区能够自主进行上下行配置的条件, 就确定目标 小区能够自主进行上下行配置。
实施中, 在确定本小区能够自主进行上下行配置后, 第二配置确定模块 310自主进行 上下行配置; 在确定本小区不能自主进行上下行配置后, 第二配置确定模块 310根据配置 信息进行上下行配置。
第二配置确定模块 310根据配置信息进行上下行配置包括但不限于下列方式中的一 种:
根据默认配置信息进行上下行配置; 根据网络侧下发的统一配置信息进行上下行配 置; 根据存在千扰的邻区的配置信息进行上下行配置。
第二配置确定模块 310还可以将测量结果发送给相邻的小区基站, 发送内容包括但不 限于下列内容中的一种或多种: 本区 ID, 目标小区 ID (即接收信息的小区), 各种测量量 结果, 各种测量量的预设判决门限值等。 信息的发送可以通过基站之间的 X2接口或者 S1 接口; 或者, 将测量值判决结果发送给相邻的小区基站, 发送的内容包括但不限于下列内 容中的一种或多种: 本区 ID, 目标小区 ID (即接收信息的小区), 各个测量量的判决结果 等。 例如根据某一测量量判断是否存在或可能存在邻区的交叉千扰, 然后发送 "存在千扰" 或者 "不存在千扰" 两种状态给相邻小区基站。 例如对某一测量量进行一定等级的量化, 比如量化成 "高千扰", "中千扰", "低千扰"等然后将量化后的信息发送给相邻小区基站。
集中式和分布式可以同时布置在一个网络中, 根据需要可以选择使用集中式或分布 式; 还可以同时使用集中式和分布式。 也就是说, 网络中配置的基站既可以包括集中式中 基站的功能, 也可以包括分布式中基站的功能, 还可以同时包括集中式和分布式中基站的 功能; 不管釆用什么方式, 都可以在网络中配置一个具有集中式的网络侧设备功能的实体 设备或虚拟设备或逻辑节点。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算机程序产 品。 因此, 本发明可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实 施例的形式。 而且, 本发明可釆用在一个或多个其中包含有计算机可用程序代码的计算机 可用存储介盾 (包括但不限于磁盘存储器、 CD-ROM、 光学存储器等)上实施的计算机程 序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产品的流程图 和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 /或方框图中的每一流 程和 /或方框、 以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机 程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器 以产生一个机器, 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用 于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方 式工作的计算机可读存储器中, 使得存储在该计算机可读存储器中的指令产生包括指令装 置的制造品, 该指令装置实现在流程图一个流程或多个流程和 /或方框图一个方框或多个 方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机 或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理, 从而在计算机或其他 可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个 方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了基本创造性概 念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要求意欲解释为包括优选 实施例以及落入本发明范围的所有变更和修改。
由于通过小区的千扰参数值, 判定小区是否能够独立进行上下行配置, 使得动态的上 下行配置能够正常运行, 并且在动态的上下行配置环境中能够减小邻区之间的千扰, 提高 系统效率。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和 范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种确定上下行配置的方法, 其特征在于, 该方法包括:
网络侧设备确定目标小区的千扰参数值;
所述网络侧设备根据目标小区的千扰参数值, 确定该目标小区是否能够自主进行上 下行配置。
2、 如权利要求 1 所述的方法, 其特征在于, 所述网络侧设备确定目标小区是否能够 自主进行上下行配置包括:
所述网络侧设备将千扰参数值与目标小区对应的阈值进行比较, 根据比较结果确定 目标小区是否能够自主进行上下行配置。
3、 如权利要求 2 所述的方法, 其特征在于, 所述千扰参数值包括目标小区接收邻小 区参考信号的第一参考信号接收功率 RSRP值;
所述网络侧设备确定目标小区是否能够自主进行上下行配置之前还包括:
所述网络侧设备确定目标小区的邻小区接收目标小区参考信号的第二 RSRP值; 所述网络侧设备确定目标小区是否能够自主进行上下行配置包括:
所述网络侧设备根据第一 RSRP值和第二 RSRP值, 确定目标小区是否能够自主进行 上下行配置。
4、 如权利要求 1 ~ 3任一所述的方法, 其特征在于, 所述千扰参数值包括目标小区接 收邻小区参考信号的第一 RSRP值;
所述网络侧设备确定第一 RSRP值之前还包括:
所述网络侧设备接收基站测量并上报的第一 RSRP值。
5、 如权利要求 4所述的方法, 其特征在于, 所述基站测量第一 RSRP值包括: 所述基站在测量间隔内, 对收到的邻小区参考信号进行测量, 得到第一 RSRP值; 或 所述基站通过上行子帧, 对收到的邻小区参考信号进行测量, 得到第一 RSRP值。
6、 如权利要求 3所述的方法, 其特征在于, 所述网络侧设备确定第二 RSRP值之前还 包括:
所述网络侧设备接收基站上报的目标小区和邻小区之间的路径损耗 Pathloss值; 所述网络侧设备确定第二 RSRP值包括:
所述网络侧设备根据目标小区的发射功率值, 以及目标小区和邻小区之间的 Pathloss 值, 确定第二 RSRP值。
7、 如权利要求 6 所述的方法, 其特征在于, 所述基站确定目标小区和邻小区之间的
Pathloss值包括: 所述基站根据邻小区的发射功率值和第一 RSRP值, 确定目标小区和邻小区之间的 Pathloss值。
8、 如权利要求 3 所述的方法, 其特征在于, 所述网络侧设备确定目标小区是否能够 自主进行上下行配置包括:
所述网络侧设备将第一 RSRP值与目标小区对应的第一阈值进行比较, 以及将第二
RSRP值与邻小区对应的第一阈值进行比较, 根据比较结果, 确定目标小区是否能够自主 进行上下行配置。
9、 如权利要求 2 所述的方法, 其特征在于, 所述千扰参数值包括千扰接收功率 RIP 值;
所述网络侧设备确定 RIP值之前还包括:
所述网络侧设备接收基站测量并上报的 RIP值。
10、 如权利要求 9所述的方法, 其特征在于, 所述基站测量 RIP值包括:
所述基站通过上行子帧, 对收到的除了本小区有用信号之外的所有千扰信号进行测 量, 得到 RIP值。
11、 如权利要求 2所述的方法, 其特征在于, 所述千扰参数值包括信道盾量指示 CQI 值和 /或参考信号接收盾量 RSRQ值;
所述网络侧设备确定千扰参数值之前还包括:
所述网络侧设备接收基站上报的千扰参数值。
12、 如权利要求 11所述的方法, 其特征在于, 所述基站确定千扰参数值包括: 所述基站接收来自终端上报的千扰参数值。
13、 如权利要求 1 ~ 3、 6 ~ 12任一所述的方法, 其特征在于, 所述网络侧设备确定目 标小区是否能够自主进行上下行配置之后还包括:
在确定第一小区能够自主进行上下行配置后, 所述网络侧设备通知目标小区自主进 行上下行配置;
在确定第一小区不能自主进行上下行配置后, 所述网络侧设备将统一的上下行配置 信息通知目标小区。
14、 一种确定上下行配置的设备, 其特征在于, 该设备包括:
第一参数值确定模块, 用于确定目标小区的千扰参数值;
第一配置确定模块, 用于根据目标小区的千扰参数值, 确定该目标小区是否能够自 主进行上下行配置。
15、 如权利要求 14所述的设备, 其特征在于, 所述第一配置确定模块具体用于: 将千扰参数值与目标小区对应的阈值进行比较, 根据比较结果确定目标小区是否能 够自主进行上下行配置。
16、 如权利要求 15 所述的设备, 其特征在于, 所述千扰参数值包括目标小区接收邻 小区参考信号的第一参考信号接收功率 RSRP值;
所述第一参数值确定模块还用于:
确定目标小区的邻小区接收目标小区参考信号的第二 RSRP值;
所述第一配置确定模块还用于:
根据第一 RSRP值和第二 RSRP值, 确定目标小区是否能够自主进行上下行配置。
17、 如权利要求 14 - 16任一所述的设备, 其特征在于, 所述千扰参数值包括目标小 区接收邻小区参考信号的第一 RSRP值;
所述第一参数值确定模块在确定第一 RSRP值之前, 还用于:
接收基站测量并上 4艮的第一 RSRP值。
18、 如权利要求 16所述的设备, 其特征在于, 所述第一参数值确定模块还用于: 接收基站上报的目标小区和邻小区之间的路径损耗 Pathloss值, 根据目标小区的发射 功率值, 以及目标小区和邻小区之间的 Pathloss值, 确定第二 RSRP值。
19、 如权利要求 16所述的设备, 其特征在于, 所述第一配置确定模块具体用于: 将第一 RSRP值与目标小区对应的第一阈值进行比较, 以及将第二 RSRP值与邻小区 对应的第一阈值进行比较, 根据比较结果, 确定目标小区是否能够自主进行上下行配 置。
20、 如权利要求 15所述的设备, 其特征在于, 所述千扰参数值包括千扰接收功率 RIP 值;
所述第一参数值确定模块确定 RIP值之前, 还用于:
接收基站测量并上报的 RIP值。
21、 如权利要求 15 所述的设备, 其特征在于, 所述千扰参数值包括信道盾量指示 CQI值和 /或参考信号接收盾量 RSRQ值;
所述第一参数值确定模块确定千扰参数值之前, 还用于:
接收基站上报的千扰参数值。
22、 如权利要求 14 ~ 16、 18 - 21 任一所述的设备, 其特征在于, 所述第一配置确定 模块还用于:
在确定第一小区能够自主进行上下行配置后, 通知目标小区自主进行上下行配置; 在确定第一小区不能自主进行上下行配置后, 将统一的上下行配置信息通知目标小区。
23、 一种基站, 其特征在于, 该基站包括:
处理模块, 用于确定千扰参数值, 其中, 所述千扰参数值用于指示网络侧设备确定本 小区是否能够自主进行上下行配置;
上报模块, 用于上 4艮确定的千扰参数值。
24、 如权利要求 23 所述的基站, 其特征在于, 所述千扰参数值包括本小区接收邻小 区参考信号的第一参考信号接收功率 RSRP值;
所述处理模块具体用于:
所述处理模块在测量间隔内, 对收到的邻小区参考信号进行测量, 得到第一 RSRP 值; 或通过上行子帧, 对收到的邻小区参考信号进行测量, 得到第一 RSRP值。
25、 如权利要求 24所述的基站, 其特征在于, 所述处理模块还用于:
根据邻小区的发射功率值和第一 RSRP值, 确定本小区和邻小区之间的 Pathloss值; 所述上报模块还用于: 上报 Pathloss值。
26、 如权利要求 23所述的基站, 其特征在于, 所述千扰参数值包括千扰接收功率 RIP 值;
所述处理模块具体用于: 通过上行子帧, 对收到的除了本小区有用信号之外的所有 千扰信号进行测量, 得到 RIP值。
27、 如权利要求 23 所述的基站, 其特征在于, 所述千扰参数值包括信道盾量指示 CQI值和 /或参考信号接收盾量 RSRQ值;
所述处理模块具体用于: 接收来自终端上报的千扰参数值。
28、 一种确定上下行配置的系统, 包括基站, 其特征在于, 该系统还包括: 网络侧设备, 用于确定目标小区的千扰参数值, 根据目标小区的千扰参数值, 确定 目标小区是否能够自主进行上下行配置;
所述目标小区所属的基站用于: 上报目标小区的千扰参数值。
29、 一种确定上下行配置的方法, 其特征在于, 该方法包括:
基站确定本小区的千扰参数值;
所述基站根据本小区的千扰参数值, 确定本小区是否能够自主进行上下行配置。
30、 如权利要求 29 所述的方法, 其特征在于, 所述基站确定本小区是否能够自主进 行上下行配置包括:
所述基站将千扰参数值与本小区对应的阈值进行比较, 根据比较结果确定本小区是 否能够自主进行上下行配置。
31、 如权利要求 30 所述的方法, 其特征在于, 所述千扰参数值包括本小区接收邻小 区参考信号的第一参考信号接收盾量 RSRP值;
所述基站确定第一 RSRP值包括:
所述基站在测量间隔内, 对收到的邻小区参考信号进行测量, 得到第一 RSRP值; 或 所述基站通过上行子帧, 对收到的邻小区参考信号进行测量, 得到第一 RSRP值。
32、 如权利要求 31 所述的方法, 其特征在于, 所述千扰参数值包括本小区接收邻小 区参考信号的第一 RSRP值; 所述基站确定本小区是否能够自主进行上下行配置之前还包括:
所述基站确定邻小区接收本小区参考信号的第二 RSRP值;
所述基站确定本小区是否能够自主进行上下行配置包括:
所述基站根据第一 RSRP值和第二 RSRP值, 确定本小区是否能够自主进行上下行配 置。
33、 如权利要求 32所述的方法, 其特征在于, 所述基站确定第二 RSRP值包括: 所述基站根据邻小区的发射功率值和第一 RSRP值, 确定本小区和邻小区之间的路径 损耗 Pathloss值, 根据本小区的发射功率值, 以及确定的本小区和邻小区之间的 Pathloss 值, 确定第二 RSRP值; 或
所述基站通过 X2接口或 S1接口获取第二 RSRP值。
34、 如权利要求 33所述的方法, 其特征在于, 所述基站通过 X2接口或 S1接口获取 邻小区的发射功率值。
35、 如权利要求 32 所述的方法, 其特征在于, 所述基站确定目标小区是否能够自主 进行上下行配置包括:
所述基站将第一 RSRP值与目标小区对应的第一阈值进行比较, 以及将第二 RSRP值 与邻小区对应的第一阈值进行比较, 根据比较结果, 确定目标小区是否能够自主进行上 下行配置。
36、 如权利要求 30所述的方法, 其特征在于, 所述千扰参数值包括千扰接收功率 RIP 值;
所述基站确定 RIP值包括:
所述基站通过上行子帧, 对收到的除了本小区有用信号之外的所有千扰信号进行测 量, 得到 RIP值。
37、 如权利要求 30 所述的方法, 其特征在于, 所述千扰参数值包括信道盾量指示 CQI值和 /或参考信号接收盾量 RSRQ值;
所述基站确定千扰参数值包括:
所述基站接收来自终端上报的千扰参数值。
38、 如权利要求 29、 30、 33 ~ 37任一所述的方法, 其特征在于, 所述基站确定本小 区是否能够自主进行上下行配置之后还包括:
在确定本小区能够自主进行上下行配置后, 所述基站自主进行上下行配置; 在确定本小区不能自主进行上下行配置后, 所述基站根据配置信息进行上下行配 置。
39、 如权利要求 38 所述的方法, 其特征在于, 所述基站根据配置信息进行上下行配 置包括: 所述基站根据默认配置信息进行上下行配置, 或根据网络侧下发的统一配置信息进 行上下行配置, 或根据存在千扰的邻小区的配置信息进行上下行配置。
40、 一种确定上下行配置的设备, 其特征在于, 该设备包括:
第二参数值确定模块, 用于确定本小区的千扰参数值;
第二配置确定模块, 用于根据本小区的千扰参数值, 确定本小区是否能够自主进行 上下行配置。
41、 如权利要求 40所述的设备, 其特征在于, 所述第二配置确定模块具体用于: 将千扰参数值与本小区对应的阈值进行比较, 根据比较结果确定本小区是否能够自 主进行上下行配置。
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