WO2017118235A1 - 一种基站、实现信号处理的方法及计算机存储介质 - Google Patents

一种基站、实现信号处理的方法及计算机存储介质 Download PDF

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Publication number
WO2017118235A1
WO2017118235A1 PCT/CN2016/107161 CN2016107161W WO2017118235A1 WO 2017118235 A1 WO2017118235 A1 WO 2017118235A1 CN 2016107161 W CN2016107161 W CN 2016107161W WO 2017118235 A1 WO2017118235 A1 WO 2017118235A1
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interference
atmospheric
result
scheduling
demodulation
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PCT/CN2016/107161
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English (en)
French (fr)
Chinese (zh)
Inventor
曾召华
王阿妮
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中兴通讯股份有限公司
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Priority to JP2018553281A priority Critical patent/JP6617309B2/ja
Publication of WO2017118235A1 publication Critical patent/WO2017118235A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to interference processing technologies, and more particularly to a base station, a method for implementing signal processing, and a computer storage medium.
  • the atmospheric waveguide is an atmospheric space that allows electromagnetic waves to return and bend and propagate.
  • the atmospheric space may be close to the ground, the upper wall is an atmospheric stratification, the lower wall is the surface of the earth, or it may be suspended, and the upper and lower walls are atmospheric stratification.
  • the appearance of the atmospheric waveguide is determined by meteorological conditions, and it is generally stable weather in the early summer after the rain, and it is easy to form an atmospheric waveguide in the atmosphere. In the coastal areas, when the dry hot air mass on the land moves to the sea, it is also prone to generate atmospheric guided waves. Atmospheric waveguides generally occur in low latitudes and mid-latitudes, especially in coastal areas and on the sea.
  • TDD-LTE time-division long-term evolution
  • the base station needs to do effective countermeasures.
  • the relevant solutions are to find the source base station and then perform interference limitation on the source base station after detecting the existence of interference (including atmospheric waveguide interference) in a specific way.
  • this scheme has the following problems: the detection method is inaccurate, and the interference cannot be effectively identified, especially the atmospheric interference; the source base station cannot be effectively found; the source base station is found, but the interference intervention cannot be effectively performed, for example, the source base station may be interfered with after the interference The access is troublesome; even if the source base station is found, if the source base station is not the base station responsible for the operator, interference avoidance cannot be performed. Therefore, in many scenarios, the current scheme of finding the source base station and performing interference limitation on the source base station is basically an evasive mode, and cannot effectively cope with the influence of the atmospheric waveguide interference disturbed base station.
  • an embodiment of the present invention provides a base station and a method for implementing signal processing thereof, which can effectively cope with the influence of an atmospheric wave tunnel interfered by a base station.
  • an embodiment of the present invention provides a base station, including: a measurement unit, an interference detection unit, a demodulation unit, and a scheduling unit;
  • a measuring unit configured to measure the atmospheric waveguide detection parameter, and output the first measurement result to the interference detecting unit; and measure the physical layer normal parameter, and output the second measurement result to the scheduling unit;
  • the interference detecting unit is configured to process the first measurement result from the measuring unit, and determine whether there is atmospheric waveguide interference in combination with a parameter threshold of the preset atmospheric waveguide interference detecting model, and output whether the result of the atmospheric guided wave interference is output Demodulation unit and scheduling unit;
  • a demodulation unit configured to determine, according to the obtained result of whether there is atmospheric guided wave interference, determine a corresponding demodulation strategy to demodulate the uplink transmission signal and output the demodulation result to the scheduling unit;
  • a scheduling unit configured to determine a corresponding scheduling policy according to the obtained result of whether there is atmospheric waveguide interference, and perform scheduling according to the demodulation result and the second measurement result.
  • the interference detecting unit is further configured to: when the result of the presence of atmospheric guided wave interference is that there is atmospheric waveguide interference, if the current detection is the first detection or the previous detection result is that there is no atmospheric waveguide interference, then Setting the detection result to the presence of atmospheric waveguide interference, and continuing to output the result of whether there is atmospheric guided wave interference to the demodulation unit and the scheduling unit;
  • the detection result is set to be free of atmospheric waveguide interference, and Continuing to output the result of whether there is atmospheric guided wave interference to the demodulation unit and the scheduling unit; if the previous detection result is that there is atmospheric waveguide interference, the detection result is updated to be free of atmospheric waveguide interference, and whether to continue The result of the presence of atmospheric guided wave interference is output to the demodulation unit and the scheduling unit.
  • the demodulation unit is preset with a correspondence between different demodulation strategies and whether there is atmospheric guided wave interference; the demodulation unit is specifically configured to:
  • the anti-interference demodulation strategy corresponding to the presence of atmospheric guided wave interference is used for demodulation; if the obtained atmospheric guided wave interference is present.
  • the results show that there is no atmospheric guided wave interference, and the interference-free demodulation strategy corresponding to the absence of atmospheric guided wave interference will be used for demodulation.
  • the scheduling unit is configured to preset a correspondence between different scheduling policies and whether there is atmospheric guided wave interference; the scheduling unit is specifically configured to:
  • the scheduling process is performed by using an anti-interference scheduling strategy corresponding to the presence of atmospheric guided wave interference; if the obtained atmospheric guided wave interference is present The results show that there is no atmospheric guided wave interference, and the scheduling process is performed using a non-interference scheduling strategy corresponding to the absence of atmospheric guided wave interference.
  • the method further includes: a measurement reporting adaptive unit, configured to:
  • the second measurement result from the measuring unit is adaptively processed and output to the scheduling unit; when receiving The result of the presence or absence of atmospheric waveguide interference from the interference detecting unit indicates that the second measurement result from the measuring unit is transparently transmitted to the scheduling unit when there is no atmospheric waveguide interference.
  • a configuration parameter adaptation unit configured to:
  • the anti-interference configuration parameter set corresponding to the presence of the atmospheric waveguide interference is output to the scheduling unit; when the received The result of whether or not the interference detecting unit has atmospheric waveguide interference indicates that when there is no atmospheric waveguide interference, a non-interference configuration parameter set corresponding to the absence of atmospheric waveguide interference is output to the scheduling unit.
  • an interference level determining unit is further included, configured to:
  • the demodulation unit further presets a correspondence between different demodulation strategies and different interference levels, and the demodulation unit is further configured to: determine a corresponding anti-interference demodulation strategy according to an interference level from the interference level determining unit. .
  • the base station further includes a configuration parameter adaptation unit
  • the interference level determining unit is further configured to output the interference level to the configuration parameter adaptive unit;
  • the configuration parameter adaptation unit is specifically configured to: output, according to the received interference level, different configuration parameter sets corresponding to different interference levels set in advance to the scheduling unit.
  • the embodiment of the invention further provides a method for implementing signal processing by a base station, comprising: measuring an atmospheric waveguide detection parameter and a physical layer regular parameter;
  • the obtained atmospheric waveguide detection parameters are processed, and the parameter threshold of the atmospheric waveguide interference detection model set in advance is used to determine whether there is atmospheric waveguide interference;
  • the corresponding scheduling strategy is determined and scheduled according to the demodulation result and the result of measuring the physical layer normal parameters.
  • the measurement of the atmospheric waveguide detection parameters is measured in a timed or real time.
  • the method further includes:
  • the detection result is set to the presence of atmospheric waveguide interference; if the previous detection result is the presence of atmospheric waveguide interference, the process ends;
  • the method further includes:
  • the detection result is set to the absence of atmospheric waveguide interference; if the previous detection result is the presence of atmospheric waveguide interference, the detection result is updated to the absence of the atmosphere. Waveguide interference.
  • the method further includes: presetting a correspondence between different demodulation strategies and whether there is atmospheric guided wave interference;
  • Determining the corresponding demodulation strategy and performing demodulation includes:
  • the obtained result of the presence of atmospheric guided wave interference indicates that there is atmospheric guided wave interference
  • demodulation is performed according to an anti-interference demodulation strategy corresponding to the presence of atmospheric guided wave interference; if the obtained atmospheric guided wave interference is present
  • the results show that there is no atmospheric guided wave interference, and demodulation is performed according to the interference-free demodulation strategy corresponding to the absence of atmospheric guided wave interference.
  • the method further includes: pre-setting a correspondence between different scheduling policies and whether there is atmospheric guided wave interference;
  • the determining the corresponding scheduling policy and performing scheduling according to the demodulation result includes:
  • the anti-interference scheduling strategy corresponding to the presence of atmospheric guided wave interference is used for scheduling processing; if the obtained result of atmospheric guided wave interference is present It is shown that there is no atmospheric guided wave interference, and the interference-free scheduling strategy corresponding to the absence of atmospheric guided wave interference is used for scheduling processing.
  • the anti-interference scheduling policy includes: fast power control; or fast adaptive modulation and coding AMC; or intelligent processing when accessing, switching, or adaptive resource allocation mechanism for different service types; or Adopt adaptive downlink transmission mechanism.
  • the method before the determining the corresponding scheduling policy and scheduling according to the demodulation result and the result of measuring the physical layer regular parameter, the method further includes:
  • the obtained physical layer conventional parameters are adaptively processed.
  • the method further includes:
  • Determining the corresponding scheduling policy and performing scheduling according to the demodulation result and the result of measuring the physical layer regular parameter includes: determining a corresponding scheduling policy according to the obtained result of whether the atmospheric waveguide interference exists, and obtaining according to the obtained The anti-interference configuration parameter set or the interference-free configuration parameter set is used to schedule the demodulated result.
  • the method further includes:
  • Determining the corresponding demodulation strategy and performing demodulation includes:
  • the corresponding anti-interference demodulation strategy is demodulated according to a preset relationship between different demodulation strategies and different interference levels, and the obtained interference level.
  • the method when acquiring the anti-interference configuration parameter set or the interference-free configuration parameter set, the method further includes: acquiring different configuration parameter sets corresponding to different interference levels set in advance according to the obtained interference level.
  • the scheduling policy is: starting fast processing of the PUCCH closed-loop power control.
  • the fast processing of starting the PUCCH closed loop power control includes: fast rising and falling, or lifting High target receive power.
  • the scheduling policy is:
  • resource allocation is performed within a power limited range; for continuous services, it is not limited by the power limited range and is used beyond the scope.
  • the scheduling policy is: starting fast processing of the PUSCH closed loop power control.
  • the scheduling policy is: starting adaptive uplink AMC processing.
  • the scheduling policy is:
  • the power is rapidly increased.
  • the MCS level is lowered; and/or during the access/switching phase, when the interference is raised, the corresponding configuration parameter set is selected according to the interference level.
  • the scheduling policy is: when using TM8 transmission, adopting a technology of TM3 that is not strongly correlated with uplink measurement.
  • Embodiments of the present invention also provide a computer storage medium, the storage medium comprising a set of instructions that, when executed, cause at least one processor to perform operations including:
  • the obtained atmospheric waveguide detection parameters are processed, and the parameter threshold of the atmospheric waveguide interference detection model set in advance is used to determine whether there is atmospheric waveguide interference;
  • the scheduling is performed according to the demodulation result and the result of measuring the normal parameters of the physical layer.
  • the technical solution of the present application includes: measuring the atmospheric waveguide detection parameters and the physical layer conventional parameters; processing the obtained atmospheric waveguide detection parameters, and combining the parameter thresholds of the preset atmospheric waveguide interference detection model Whether there is atmospheric waveguide interference; according to the obtained result of whether there is atmospheric guided wave interference, the corresponding demodulation strategy is determined and the obtained physical layer conventional parameters are used to demodulate the uplink transmission signal; according to whether the obtained atmospheric waveguide interference is present And determining a corresponding scheduling policy and scheduling according to the demodulation result and the result of measuring the physical layer regular parameters.
  • the technical solution provided by the invention effectively copes with the influence of the atmospheric waveguide interference disturbed base station, and satisfactorily solves the performance of the base station, especially the uplink system performance of the base station, especially the TDD-LTE, under the high interference of the atmospheric waveguide existing in the prior art. Decrease, wireless connection rate, dropped call rate, severely degraded handover success rate, and poor user experience.
  • the present invention implements an adaptive configuration of configuration parameters used by the scheduling unit according to the interference condition by configuring the parameter adaptation unit, and better processes the atmospheric waveguide interference accordingly.
  • the present invention further refines different demodulation processing of atmospheric waveguide interferences with different interference levels by dividing the interference level of the atmospheric waveguide, and better avoids atmospheric waveguide interference.
  • FIG. 1 is a schematic structural diagram of a base station of the present invention
  • FIG. 2 is a flowchart of a method for implementing signal processing by a base station according to the present invention
  • FIG. 3 is a schematic flowchart diagram of an embodiment of a base station implementing signal processing according to the present invention. .
  • the method includes at least: a measuring unit 100, an interference detecting unit 101, a demodulating unit 102, and a scheduling unit 103.
  • the measuring unit 100 is configured to measure the atmospheric waveguide detection parameter, and output the first measurement result to the interference detecting unit 101, which may be measured by timing or real time; and, the physical layer normal parameter is measured, and the second measurement result is Output to the scheduling unit 103, which can be measured in real time.
  • the atmospheric waveguide detection parameter is a preset identification parameter of the atmospheric waveguide interference detection model, for example, a noise and interference (NI, Noise and Interference) level measured on a certain time-frequency domain resource; and/or in random extraction
  • NI noise and interference
  • the physical layer general parameters include, but are not limited to, a Physical Uplink Control Channel (PUCCH), a Sounding Reference Signal (SRS), a Physical Uplink Shared Channel (PUSCH), or a physical uplink shared channel (PUSCH).
  • PUCCH Physical Uplink Control Channel
  • SRS Sounding Reference Signal
  • PUSCH Physical Uplink Shared Channel
  • PUSCH physical uplink shared channel
  • PRACH random access channel
  • the interference detecting unit 101 is configured to process the first measurement result from the measuring unit 100, and determine whether there is atmospheric waveguide interference in combination with a parameter threshold of the preset atmospheric waveguide interference detecting model, and whether there is an air guided wave interference result. It is output to the demodulation unit 102 and the scheduling unit 103.
  • the parameter threshold of the preset atmospheric waveguide interference detection model is the NI threshold and the threshold is -104 dbm
  • the identification parameter information of the preset atmospheric waveguide interference detection model included in the first measurement result is NI
  • a value greater than -104 dbm indicates the presence of atmospheric waveguide interference.
  • the detection result is set to the presence of atmospheric waveguide interference, and whether it will continue to exist
  • the result of the atmospheric guided wave interference is output to the demodulating unit 102 and the scheduling unit 103; if the previous detection result is that there is atmospheric waveguide interference, the result of whether or not there is atmospheric guided wave interference is no longer output to the demodulating unit 102 and the scheduling unit 103. ;
  • the detection result is set to the absence of atmospheric waveguide interference, and will continue The result of whether there is atmospheric guided wave interference is output to the demodulating unit 102 and the scheduling unit 103; if the previous detection result is that there is atmospheric waveguide interference, the detection result is updated to be free of atmospheric waveguide interference, and whether or not atmospheric guided waves are continuously present The result of the interference is output to the demodulation unit 102 and the scheduling unit 103.
  • the demodulation unit 102 is configured to determine, according to the obtained result of whether there is atmospheric guided wave interference, determine a corresponding demodulation strategy to demodulate the uplink transmission signal and output the demodulation result to the scheduling unit 103. specifically,
  • the correspondence between different demodulation strategies and whether there is atmospheric guided wave interference may be preset in the demodulation unit 102. If the obtained atmospheric guided wave interference results in the presence of atmospheric guided wave interference, the presence and presence of the atmospheric guide will be adopted. The anti-interference demodulation strategy corresponding to the wave interference is demodulated; if the obtained atmospheric guided wave interference results in the absence of atmospheric guided wave interference, the interference-free demodulation strategy corresponding to the absence of atmospheric guided wave interference is used. There is a normal demodulation strategy for demodulation.
  • the scheduling unit 103 is configured to determine a corresponding scheduling policy according to the obtained result of whether there is atmospheric waveguide interference, and perform scheduling according to the demodulation result and the second measurement result. specifically,
  • the correspondence between different scheduling strategies and whether there is atmospheric guided wave interference may be preset in the scheduling unit 103. If the obtained atmospheric guided wave interference results in the presence of atmospheric guided wave interference, the corresponding interference with the atmospheric guided wave interference is adopted.
  • the anti-interference scheduling strategy is used for scheduling processing; if the obtained atmospheric guided wave interference results show that there is no atmospheric guided wave interference, the non-interfering scheduling strategy corresponding to the absence of atmospheric guided wave interference is already a normal scheduling strategy. Scheduling processing.
  • the anti-interference scheduling strategy includes, but is not limited to, fast power control; AMC (Adaptive Modulation and Coding); intelligent processing is used in specific scenarios such as access and handover; Adapt to the resource allocation mechanism; adopt adaptive downlink transmission mechanism.
  • AMC Adaptive Modulation and Coding
  • intelligent processing is used in specific scenarios such as access and handover
  • Adapt to the resource allocation mechanism adopt adaptive downlink transmission mechanism.
  • the base station of the present invention further includes:
  • the measurement reporting adaptation unit 104 is configured to: when the received result of the atmospheric waveguide interference from the interference detecting unit 101 indicates that there is atmospheric waveguide interference, the second measurement result from the measuring unit 100 is adaptively processed and output to The scheduling unit 103; when the received result of the presence of the atmospheric waveguide interference from the interference detecting unit 101 indicates that there is no atmospheric waveguide interference, the second measurement result from the measuring unit 100 is transparently transmitted to the scheduling unit 103.
  • the base station of the present invention further includes:
  • the configuration parameter adaptation unit 106 is configured to: when the received result of the atmospheric waveguide interference from the interference detecting unit 101 indicates that there is atmospheric waveguide interference, output the anti-interference configuration parameter set corresponding to the atmospheric waveguide interference to the scheduling unit. 103. When the received result of the presence of the atmospheric waveguide interference from the interference detecting unit 101 indicates that there is no atmospheric waveguide interference, the interference-free configuration parameter set corresponding to the absence of the atmospheric waveguide interference is output to the scheduling unit 103.
  • parameter adaptation unit 106 By configuring the parameter adaptation unit 106, adaptive configuration of the configuration parameters used by the scheduling unit 103 is implemented according to the interference situation, and the atmospheric waveguide interference is better processed accordingly.
  • the base station of the present invention further includes:
  • the interference level determining unit 105 is configured to receive the first measurement result from the measurement unit 100 and the result of whether there is atmospheric waveguide interference from the interference detecting unit 101, and according to different first measurement results set in advance and each atmospheric waveguide interference level The correspondence between the two determines the interference level of the atmospheric waveguide interference, and outputs the interference level to the demodulation unit 102. Specifically, if the result of the presence or absence of the atmospheric waveguide interference is that there is no atmospheric waveguide interference, it can be determined that the interference level is no interference such as the interference level 0; if the result of the atmospheric waveguide interference is displayed as the presence of the atmospheric waveguide interference, Determine light interference such as interference level 1, moderate interference such as interference level 2, or severe interference such as interference level 3.
  • the different interference levels may be determined by, for example, determining the interference level, the degree of interference of different symbols, or the degree of interference of the demodulation reference signal.
  • the base station of the present invention includes the interference level determining unit 105,
  • the demodulation unit 103 specifically includes:
  • the correspondence between different demodulation strategies and different interference levels may be preset in the demodulation unit 103, and the corresponding anti-interference demodulation strategy is determined according to the interference level from the interference level determining unit 105. At this time, when there is atmospheric waveguide interference, the different stems are further refined.
  • the different demodulation processing of the atmospheric waveguide interference of the disturbance level better circumvents the atmospheric waveguide interference.
  • Interference level 0 corresponds to a normal demodulation strategy, such as channel estimation using interpolation, and/or using Maximum Ratio Combining (MRC) and Interference Rejection Combining (IRC) adaptive techniques, but not limited to this;
  • MRC Maximum Ratio Combining
  • IRC Interference Rejection Combining
  • Interference level 1 corresponds to a demodulation strategy under low interference, such as channel estimation using interpolation, and/or using IRC techniques, but is not limited thereto;
  • Interference level 2 corresponds to a demodulation strategy under medium interference, such as channel estimation using a flat push method, and/or using IRC technology, but is not limited thereto;
  • Interference level 3 corresponds to a demodulation strategy under high interference, such as channel estimation using a push-push method, and/or using IRC techniques, and/or weighting signals on different symbols according to NI levels, but is not limited thereto.
  • the base station of the present invention includes the interference level determining unit 105, and also includes the configuration parameter adaptive unit 106, then, at this time,
  • the interference level determining unit 105 is further configured to output the interference level to the configuration parameter adaptation unit 106;
  • the configuration parameter adaptation unit 106 is specifically configured to: output, according to the received interference level, different configuration parameter sets corresponding to different interference levels set in advance to the scheduling unit 103. such as:
  • the configuration parameter set includes: the PUSCH nominal power configuration is -87 dBm, the PUSCH path loss compensation factor is configured to be 0.8, the PUCCH nominal power configuration is -105 dBm, and the PRACH target received power is configured to be -100 dBm;
  • the configuration parameter set includes: the PUSCH nominal power configuration is -75 dBm, the PUSCH path loss compensation factor is configured at 0.8, and the PUCCH nominal power configuration is -105. dBm, PRACH target receive power is configured to be -100dBm;
  • the configuration parameter set includes: the PUSCH nominal power configuration is -75 dBm, the PUSCH path loss compensation factor is configured to be 0.8, the PUCCH nominal power configuration is -100 dBm, and the PRACH target received power is configured to be -96 dBm;
  • the configuration parameter set includes: PUSCH nominal power configuration is -75dBm, PUSCH path loss compensation factor configuration is 1, PUCCH nominal power configuration is -90dBm, PRACH target receiving power is configured to -90dBm, LTE
  • the power difference deltaPreambleMsg3 of the third message (Msg3) and the PRACH during the access or handover process is configured to be 4.
  • the embodiment of the present invention when there is atmospheric waveguide interference, the corresponding demodulation strategy and scheduling strategy are adopted, and the influence of the atmospheric waveguide interference disturbed base station is effectively solved, which is very well solved in the prior art.
  • the performance of the base station especially the uplink system of the base station in TDD-LTE, is degraded, the wireless connection rate, the dropped call rate, the handover success rate are seriously deteriorated, and the user experience is poor.
  • the parameter adaptation unit 106 adaptive configuration of the configuration parameters used by the scheduling unit 103 is implemented according to the interference situation, and the atmospheric waveguide interference is better processed accordingly.
  • different demodulation processing of atmospheric waveguide interferences with different interference levels is further refined, and the atmospheric waveguide interference is better avoided.
  • scheduling unit 103 The specific implementation of the scheduling unit 103 will be described in detail below in conjunction with different application scenarios.
  • the scheduling policy of the scheduling unit 103 is: to start the fast processing of the closed-loop power control of the PUCCH, which may include: overcoming the fast rise and fall of the high interference or increasing the target received power, wherein
  • Overcoming the high-interference fast-rising slow-down includes: after the fast processing of the PUCCH closed-loop power control, comparing the parameter value from the measurement reporting adaptive unit 104 with the preset NI threshold of the PUCCH closed-loop power control, when the adaptively processed NI Control PUCCH closed loop when the level is above the NI threshold The power control performs fast power boosting; when not higher than the NI threshold, the PUCCH closed loop power control is performed at a normal speed.
  • the target receiving power is increased by: comparing the parameter value from the measurement reporting adaptive unit 104 with the preset NI threshold of the PUCCH closed-loop power control, and scheduling the PUCCH closed-loop power when the adaptively processed NI level is higher than the NI threshold.
  • the target value of the control otherwise, the target value of the PUCCH closed-loop power control is unchanged.
  • the measured NI level minus the NI threshold is the amplitude of the increase.
  • the scheduling policy of the scheduling unit 103 is: performing separate processing according to the service type, specifically: for discrete services, in order to prevent AMC jitter, resource allocation is performed within a power limited range; Can be used beyond the limits of the power limit.
  • the scheduling policy of the scheduling unit 103 is: to start the fast processing of the closed-loop power control of the PUSCH, for example, the fast power boosting strategy of the hybrid automatic repeat-reQuest (HARQ), specifically including
  • HARQ hybrid automatic repeat-reQuest
  • the scheduling strategy of the scheduling unit 103 is: the step size of the PUSCH closed-loop power control is reduced in the fast processing; or the power is not immediately adjusted when the HARQ fails. Or, the power control command word is issued without affecting resource allocation.
  • AMC uplink adaptive modulation and coding
  • the scheduling policy of the scheduling unit 103 is: starting an adaptive uplink AMC processing scheme, including but not limited to: mainly relying on the outer ring AMC to adjust information, the inner ring AMC is second; or the fixed AMC policy; Or increase the channel tracking speed of the AMC.
  • the scheduling policy of the scheduling unit 103 is: normal processing to restore the normal state.
  • the scheduling strategy of the scheduling unit 103 is to start an adaptive access processing scheme. Intelligent processing is performed when the UE accesses to better ensure the connection rate. Including: during the access phase, when the interference is raised, the power is rapidly increased. When the power is limited, various measures including reducing the MCS level may be adopted to ensure the connection rate; and/or, during the access phase, when the interference occurs When lifting, the corresponding configuration parameter set is selected according to the interference level, and the maximum connection benefit is obtained under the interference level.
  • the scheduling policy of the scheduling unit 103 is: normal processing to restore the normal state.
  • the scheduling policy of the scheduling unit 103 is to start an adaptive handover processing scheme, and perform intelligent processing on the UE during handover to better switch the success rate. Including: during the switching phase, when the interference is raised, the power is rapidly increased. When the power is limited, various measures including reducing the MCS level may be adopted to ensure the switching success rate; and/or when the interference is raised, when the interference is raised, The corresponding configuration parameter set is selected according to the interference level, and the benefit of obtaining the maximum handover success rate under the interference level is realized.
  • the scheduling policy of the scheduling unit 103 is: normal processing to restore the normal state.
  • the scheduling policy of the scheduling unit 103 is: starting an adaptive transmission scheme and flexibly using a transmission technology. For example, when using TM8 transmission, since the weight estimation under TM8 depends on the uplink measurement, the uplink measurement is not under the atmospheric waveguide interference. At this time, TM8 has no performance gain, and can adopt the technology of TM3 which is not related to uplink measurement.
  • the scheduling policy of the scheduling unit 103 is: normal processing to restore the normal state.
  • the background may be configured by the measurement unit 100, such as a switch that activates the atmospheric waveguide interference mode. If the atmospheric waveguide interference mode is activated, the parameters to be configured in the lower atmospheric waveguide interference mode may be, for example, all necessary measurement parameters, including the proprietary detection parameters of the atmospheric waveguide interference.
  • the measurement unit 100 performs measurement and reporting according to the delivered content; the interference detection unit 101, all the interference interference thresholds or the interference level thresholds used by the interference level determination unit 105, and the like; and all the configurations of the scheduling unit 103 corresponding to the preset interference levels. Parameter sets, etc., such as the NI threshold used by PUCCH fast power control.
  • FIG. 2 is a flowchart of a method for implementing signal processing by a base station according to the present invention. As shown in FIG. 2, the method includes:
  • Step 200 Measure the atmospheric waveguide detection parameters and the physical layer conventional parameters.
  • the measurement of the atmospheric waveguide detection parameters can be measured in time or in real time; the measurement of the physical layer general parameters can be measured in real time.
  • the atmospheric waveguide detection parameter is a preset identification parameter of the atmospheric waveguide interference detection model, for example, a noise and interference (NI, Noise and Interference) level measured on a certain time-frequency domain resource; and/or in random extraction
  • NI noise and interference
  • the physical layer general parameters include, but are not limited to, a Physical Uplink Control Channel (PUCCH), a Sounding Reference Signal (SRS), a Physical Uplink Shared Channel (PUSCH), or a physical uplink shared channel (PUSCH). Any one of the random access channels (PRACH, Physical Random Access Channel)
  • PRACH Physical Random Access Channel
  • the collection on the uplink channel, the measurement information is not limited to low noise and interference size, received power, and the like.
  • Step 201 Process the obtained atmospheric waveguide detection parameters, and determine whether there is atmospheric waveguide interference in combination with a parameter threshold of the preset atmospheric waveguide interference detection model.
  • the obtained atmospheric waveguide detection parameters are processed, including but not limited to: energy calculation and processing such as measurement value smoothing processing, averaging processing, and the like. Further, hysteresis processing can be performed at the time of judgment, which can reduce false positives and prevent state ping-pong.
  • energy calculation and processing such as measurement value smoothing processing, averaging processing, and the like.
  • hysteresis processing can be performed at the time of judgment, which can reduce false positives and prevent state ping-pong.
  • the specific implementation of the energy calculation and processing, the hysteresis processing, and the like are well-known in the art, and the specific implementation is not limited to the scope of protection of the present invention, and details are not described herein again.
  • the processed result exceeds a preset parameter threshold, it is determined that atmospheric waveguide interference exists.
  • the parameter threshold of the preset atmospheric waveguide interference detection model is the noise and interference (NI, Noise and Interference) threshold, and the threshold is -104dbm, then if the first measurement result contains the preset atmospheric waveguide interference
  • the identification parameter information of the detection model that is, the value of NI is greater than -104dbm, indicating that there is atmospheric waveguide interference.
  • the detection result is set to exist in the atmospheric waveguide interference; if the previous detection result is present Atmospheric waveguide interference, then, end the process and wait for the next test;
  • the detection result is set to be free of atmospheric waveguide interference; if the previous detection result In the presence of atmospheric waveguide interference, the detection results are updated to the absence of atmospheric waveguide interference.
  • Step 202 Determine, according to the obtained result of whether there is atmospheric guided wave interference, determine a corresponding demodulation strategy to demodulate the uplink transmission signal.
  • this step also includes: presetting different demodulation strategies and whether there is atmospheric guided wave interference. Correspondence between
  • This step specifically includes: if the obtained atmospheric guided wave interference results in the presence of atmospheric guided wave interference, demodulation is performed according to an anti-interference demodulation strategy corresponding to the presence of atmospheric guided wave interference; if the obtained atmospheric guided wave interference exists The results show that there is no atmospheric guided wave interference, and the normal demodulation strategy is demodulated according to the interference-free demodulation strategy corresponding to the absence of atmospheric guided wave interference.
  • Step 203 Determine a corresponding scheduling policy according to the obtained result of whether there is atmospheric waveguide interference, and perform scheduling according to the demodulation result and the result of measuring the physical layer normal parameter.
  • the method further includes: presetting the correspondence between different scheduling policies and whether there is atmospheric guided wave interference.
  • the step specifically includes: if the obtained atmospheric guided wave interference result indicates that there is atmospheric guided wave interference, the anti-interference scheduling strategy corresponding to the presence of atmospheric guided wave interference is used for scheduling processing; if the obtained atmospheric guided wave interference exists The results show that there is no atmospheric guided wave interference, and the non-interfering scheduling strategy corresponding to the absence of atmospheric guided wave interference has a normal scheduling strategy for scheduling processing.
  • the anti-interference scheduling strategy includes, but is not limited to, fast power control; AMC (Adaptive Modulation and Coding); intelligent processing is used in specific scenarios such as access and handover; Adapt to the resource allocation mechanism; adopt adaptive downlink transmission mechanism.
  • AMC Adaptive Modulation and Coding
  • intelligent processing is used in specific scenarios such as access and handover
  • Adapt to the resource allocation mechanism adopt adaptive downlink transmission mechanism.
  • step 203 the method further includes:
  • the obtained physical layer conventional parameters are adaptively processed.
  • step 203 further comprising: if there is an atmospheric waveguide interference result indicating that there is atmospheric waveguide interference, acquiring an anti-interference configuration parameter set corresponding to the presence of atmospheric waveguide interference; if there is atmospheric waveguide interference The result shows that there is no big When the gas waveguide interferes, a non-interference configuration parameter set corresponding to the absence of atmospheric waveguide interference is acquired. at this time,
  • the step 203 specifically includes: determining a corresponding scheduling policy according to the obtained result of whether the atmospheric waveguide interference exists, and scheduling the obtained anti-interference configuration parameter set or the interference-free configuration parameter set according to the demodulation result. In this way, by configuring the parameter adaptive unit, according to the interference situation, the adaptive configuration of the configuration parameters used by the scheduling unit is realized, and the atmospheric waveguide interference is better processed accordingly.
  • step 201 before step 203, the method further includes:
  • the interference level of the atmospheric waveguide interference is determined according to the atmospheric waveguide detection parameter and whether there is the result of the atmospheric waveguide interference, and the corresponding relationship between the different atmospheric waveguide detection parameters and the interference levels of the atmospheric waveguides; thus, if there is no atmosphere When the waveguide interferes, it is determined that the interference level is no interference such as interference level 0; if there is atmospheric waveguide interference, it can be determined that the light interference such as interference level 1, moderate interference such as interference level 2, or severe interference such as interference level 3, etc. .
  • the different interference levels that is, the degree of interference, may be determined by, for example, determining the interference level, the degree of interference of different symbols, or the degree of interference of the demodulation reference signal.
  • step 202 specifically includes: pre-setting a correspondence between different demodulation strategies and different interference levels, and determining a corresponding anti-interference demodulation strategy for demodulation according to the obtained interference level.
  • pre-setting a correspondence between different demodulation strategies and different interference levels and determining a corresponding anti-interference demodulation strategy for demodulation according to the obtained interference level.
  • Interference level 0 corresponds to a normal demodulation strategy, such as channel estimation using interpolation, and/or using Maximum Ratio Combining (MRC) and Interference Rejection Combining (IRC) adaptive techniques, but not limited to this;
  • MRC Maximum Ratio Combining
  • IRC Interference Rejection Combining
  • Interference level 1 corresponds to a demodulation strategy under low interference, such as channel estimation using interpolation, and/or using MRC and IRC adaptive techniques, but is not limited thereto;
  • the interference level 2 corresponds to a demodulation strategy under medium interference, such as channel estimation using a flat push method, and/or using an IRC adaptive technique, but is not limited thereto;
  • Interference level 3 corresponds to a demodulation strategy under high interference, such as channel estimation using a push-push method, and/or using IRC adaptive techniques, but is not limited thereto.
  • the method of the present invention further includes the step of acquiring an anti-interference configuration parameter set or a non-interference configuration parameter set, when acquiring the anti-interference configuration parameter set or the interference-free configuration parameter set, the method further includes: acquiring and pre-acquiring according to the obtained interference level.
  • Set different configuration parameter sets corresponding to different interference levels For example, under different interference levels, one or all of the following parameters are configured according to the following recommended values, but are not limited to:
  • the configuration parameter set includes: the PUSCH nominal power configuration is -87 dBm, the PUSCH path loss compensation factor is configured to be 0.8, the PUCCH nominal power configuration is -105 dBm, and the PRACH target received power is configured to be -100 dBm;
  • the configuration parameter set includes: the PUSCH nominal power configuration is -75 dBm, the PUSCH path loss compensation factor is configured at 0.8, the PUCCH nominal power configuration is -105 dBm, and the PRACH target received power is configured to be -100 dBm;
  • the configuration parameter set includes: the PUSCH nominal power configuration is -75 dBm, the PUSCH path loss compensation factor is configured to be 0.8, the PUCCH nominal power configuration is -100 dBm, and the PRACH target received power is configured to be -96 dBm;
  • the configuration parameter set includes: the PUSCH nominal power configuration is -75 dBm, the PUSCH path loss compensation factor configuration is 1, the PUCCH nominal power configuration is -90 dBm, and the PRACH target received power configuration is -90 dBm, Msg3
  • the power difference deltaPreambleMsg3 with PRACH is configured as 4.
  • the scheduling policy in step 203 of the present invention includes:
  • the scheduling strategy is: to start the fast processing of the closed loop power control of the PUCCH, which may specifically include: overcoming the high dry The fast rise or fall of the disturbance or increase the target receiving power, wherein
  • Overcoming the high-interference fast-rising slow-down includes: after the rapid processing of the PUCCH closed-loop power control, comparing the parameter value from the measurement reporting adaptive unit with the preset NI threshold of the PUCCH closed-loop power control, when the adaptively processed NI level Above this threshold, the PUCCH closed-loop power control is controlled to perform fast power boosting; when not higher than the NI threshold, the PUCCH closed-loop power control is performed at a normal speed.
  • the target receiving power is increased by: comparing the parameter value from the measurement reporting adaptive unit with the preset NI threshold of the PUCCH closed-loop power control, and scheduling the PUCCH closed-loop power control when the adaptively processed NI level is higher than the threshold.
  • Target value otherwise, the target value of the PUCCH closed-loop power control is unchanged.
  • the measured NI level minus the NI threshold is the amplitude of the increase.
  • the processing situation of the base station selecting different resource allocation mechanisms according to the service type when there is atmospheric waveguide interference, the scheduling strategy is: performing separate processing according to the service type, specifically including: for discrete services, in order to prevent AMC jitter, the power consumption is taken Resource allocation within the limited range; for continuous services, it can be used beyond the scope of power limitation.
  • the scheduling strategy is: start the fast processing of the closed loop power control of the PUSCH, for example, according to the hybrid automatic repeat request (HARQ, Hybrid Automatic Repeat-ReQuest) Fail
  • the fast power boosting strategy includes but not limited to: the step size of the PUSCH closed loop power control is increased in the fast processing; or the power is adjusted immediately when the HARQ fails; or, if the interference is detected, the resource allocation is ensured to ensure the power control
  • the command word takes effect in time.
  • the corresponding scheduling strategy is: the step size of the PUSCH closed-loop power control is reduced in the fast processing; or the power is not adjusted immediately when the HARQ fails; or, the power control The issuing of the command word does not affect the resource allocation.
  • the scheduling strategy is: start the adaptive uplink AMC processing scheme, including but not limited to: mainly relying on the outer ring AMC to adjust the information, the inner ring AMC is second; or fixed AMC strategy; or improve the channel tracking speed of AMC.
  • the corresponding scheduling strategy is: normal processing to restore the normal state.
  • the scheduling strategy is: starting an adaptive access processing scheme. Intelligent processing is performed when the UE accesses to better ensure the connection rate. Including: during the access phase, when the interference is raised, the power is rapidly increased. When the power is limited, various measures including reducing the MCS level may be adopted to ensure the connection rate; and/or when the interference phase is raised, the interference rises. When the corresponding configuration parameter set is selected according to the interference level, the maximum connection benefit is obtained under the interference level.
  • the corresponding scheduling strategy is: normal processing to restore the normal state.
  • the scheduling strategy is: start an adaptive handover processing scheme, and perform intelligent processing on the UE at the time of handover to better switch the success rate.
  • the scheduling strategy is: start an adaptive handover processing scheme, and perform intelligent processing on the UE at the time of handover to better switch the success rate.
  • the power is rapidly increased.
  • various measures including reducing the MCS level may be adopted to ensure the switching success rate; and/or when the interference is raised, when the interference is raised, The corresponding configuration parameter set is selected according to the interference level, and the benefit of obtaining the maximum handover success rate under the interference level is realized.
  • the corresponding scheduling strategy is: normal processing to restore the normal state.
  • the scheduling strategy is: start the adaptive transmission scheme, and flexibly use the transmission technology, for example, when using the TM8 transmission. Because of the weight estimation under TM8, etc. Depending on the uplink measurement, the uplink measurement is not accurate under the interference of the atmospheric waveguide. At this time, the TM8 has no performance gain, and can adopt the technology of TM3 which is not related to the uplink measurement.
  • the corresponding scheduling strategy is: normal processing to restore the normal state.
  • the background may be configured by the measurement unit, such as a switch that activates the atmospheric waveguide interference mode. If the atmospheric waveguide interference mode is activated, the parameters to be configured in the lower atmospheric waveguide interference mode may be, for example, all necessary measurement parameters, including the proprietary detection parameters of the atmospheric waveguide interference.
  • the measurement unit performs measurement and reporting according to the delivered content; all the interference detection thresholds used by the interference detection unit and the interference level determination unit, or the interference level threshold; and all configuration parameter sets of the scheduling unit corresponding to the preset interference level, etc. Such as the NI threshold used by PUCCH fast power control.
  • FIG. 3 is a schematic flowchart of an embodiment of a signal processing performed by a base station according to the present invention. As shown in FIG. 3, the method includes:
  • Step 300 The measurement unit measures a specific parameter according to a background configuration and reports the measurement data.
  • the parameters to be measured include atmospheric waveguide detection parameters and physical layer conventional parameters.
  • Step 301 to step 302 The interference detecting unit identifies whether there is atmospheric waveguide interference according to the measured data and the parameter threshold of the preset atmospheric waveguide interference detection model. If there is no atmospheric waveguide interference, proceed to step 303; if there is atmospheric waveguide interference Go to step 304 and step 305.
  • Step 303 Perform normal processing according to the interference of the base station without atmospheric waveguide, and end the process.
  • Step 304 to step 305 When there is atmospheric waveguide interference, the interference level of the currently existing atmospheric waveguide interference is determined according to the corresponding relationship between the different atmospheric waveguide detection parameters and the atmospheric waveguide interference levels.
  • Step 306 adaptively select a corresponding demodulation strategy according to the interference level and perform demodulation, and proceed to step 308.
  • Step 307 When there is atmospheric waveguide interference, the obtained physical layer conventional parameters are adaptively processed. It should be noted that there is no strict sequence between this step and step 304. As long as the processing is completed before step 308.
  • Step 308 adaptively use the corresponding configuration parameter set according to the interference level to schedule the adaptive processing result.
  • the embodiment of the present invention when there is atmospheric waveguide interference, the corresponding demodulation strategy and scheduling strategy are adopted, and the influence of the atmospheric waveguide interference disturbed base station is effectively solved, which is very well solved in the prior art.
  • the performance of the base station especially the uplink system of the base station in TDD-LTE, is degraded, the wireless connection rate, the dropped call rate, the handover success rate are seriously deteriorated, and the user experience is poor.
  • the parameter adaptation unit adaptive configuration of the configuration parameters used by the scheduling unit is implemented according to the interference situation, and the atmospheric waveguide interference is better processed accordingly.
  • different demodulation processing of atmospheric waveguide interferences with different interference levels is further refined, and the atmospheric waveguide interference is better avoided.
  • Embodiments of the present invention disclose a base station, a method for implementing signal processing, and a computer storage medium, which measure an atmospheric waveguide detection parameter and a physical layer conventional parameter; and process the obtained atmospheric waveguide detection parameter, and combine the preset atmospheric waveguide.
  • the parameter threshold of the interference detection model determines whether there is atmospheric waveguide interference; according to the obtained result of whether there is atmospheric guided wave interference, the corresponding demodulation strategy is determined and the obtained physical layer conventional parameters are used to demodulate the uplink transmission signal; Whether there is the result of atmospheric waveguide interference, determine the corresponding scheduling strategy and root The scheduling is performed according to the demodulation result and the result of measuring the normal parameters of the physical layer.
  • the technical solution provided by the invention effectively copes with the influence of the atmospheric waveguide interference disturbed base station, and satisfactorily solves the performance of the base station, especially the uplink system performance of the base station, especially the TDD-LTE, under the high interference of the atmospheric waveguide existing in the prior art. Decrease, wireless connection rate, dropped call rate, severely degraded handover success rate, and poor user experience.

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