CN106941679B - Base station and method for realizing signal processing - Google Patents

Base station and method for realizing signal processing Download PDF

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CN106941679B
CN106941679B CN201610003824.3A CN201610003824A CN106941679B CN 106941679 B CN106941679 B CN 106941679B CN 201610003824 A CN201610003824 A CN 201610003824A CN 106941679 B CN106941679 B CN 106941679B
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interference
atmospheric
result
scheduling
guided wave
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CN106941679A (en
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曾召华
王阿妮
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ZTE Corp
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ZTE Corp
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J11/00Orthogonal multiplex systems, e.g. using WALSH codes
    • 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
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/28Cell structures using beam steering
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

The invention discloses a base station and a method for realizing signal processing, comprising the steps of measuring an atmospheric waveguide detection parameter and a physical layer conventional parameter; processing the obtained atmospheric waveguide detection parameters, and judging whether atmospheric waveguide interference exists or not by combining a preset parameter threshold value of an atmospheric waveguide interference detection model; determining a corresponding demodulation strategy to demodulate the uplink transmission signal according to the obtained result of whether the atmospheric guided wave interference exists; and determining a corresponding scheduling strategy according to the obtained result of whether the atmospheric waveguide interference exists or not, and scheduling according to the demodulation result and the result of measuring the conventional parameters of the physical layer. The technical scheme provided by the invention effectively deals with the influence of atmospheric waveguide interference on the interfered base station, and well solves the problems that the performance of the uplink system of the base station, especially the base station in TDD-LTE is reduced, the wireless call completing rate, the call dropping rate and the switching success rate are seriously deteriorated, and the user experience is poor under the high interference of the atmospheric waveguide in the prior art.

Description

Base station and method for realizing signal processing
Technical Field
The present invention relates to interference processing technologies, and in particular, to a base station and a method for implementing signal processing.
Background
The atmospheric waveguide is an atmospheric space in which an electromagnetic wave can return and propagate meanderingly. The atmospheric space can be close to the ground, the upper wall is an atmospheric layer knot, and the lower wall is the earth surface; or suspended, and the upper wall and the lower wall are atmospheric junctions. The appearance of the atmospheric waveguide is determined by meteorological conditions, and the atmospheric waveguide is easily formed in the atmosphere in the stable weather of the weather in the first time after rain in summer. In coastal areas, when dry hot air masses on land move to the sea, atmospheric guided waves are also easily generated. Atmospheric waveguides are generally produced more in low and medium latitude areas, especially in coastal areas and on the sea surface.
Under the atmospheric waveguide, there will be large interference to the uplink channel of the base station system. Taking a time division long term evolution (TDD-LTE) base station system as an example, downlink timeslots of other base stations of hundreds of kilometers or even thousands of kilometers away interfere with an uplink timeslot of a specific base station, which causes a severe decrease in access success rate, handover success rate, and call drop rate of the base station, and causes great troubles to user perception and operation and maintenance of operators.
Therefore, the base station needs to take effective countermeasures under the interference of the atmospheric waveguide.
Currently, the related solutions try to find a source base station after detecting the existence of interference (including atmospheric waveguide interference) in a specific way, and then perform interference limitation on the source base station. However, this solution has the following problems: the detection mode is inaccurate, and the interference, particularly the atmospheric interference, cannot be effectively identified; the source base station cannot be found effectively; a source base station is found, but interference intervention cannot be effectively carried out, for example, interference may cause trouble to access of the source base station; even if the source base station is found, if the source base station is not the base station for which the operator is responsible, interference avoidance cannot be performed. Therefore, in many scenarios, the current scheme of searching for and limiting interference to the source base station basically belongs to an avoidance mode, and cannot effectively cope with the influence of interference of the atmospheric waveguide to the interfered base station.
Disclosure of Invention
In order to solve the above technical problem, the present invention provides a base station and a method for implementing signal processing thereof, which can effectively cope with the influence of atmospheric waveguide interference on a disturbed base station.
In order to achieve the object of the present invention, the present invention provides a base station, comprising: the device comprises a measuring unit, an interference detection unit, a demodulation unit and a scheduling unit; wherein the content of the first and second substances,
the measuring unit is used for measuring the detection parameters of the atmospheric waveguide and outputting a first measurement result to the interference detection unit; measuring the conventional parameters of the physical layer, and outputting a second measurement result to the scheduling unit;
the interference detection unit is used for processing the first measurement result from the measurement unit, judging whether the atmospheric waveguide interference exists or not by combining a preset parameter threshold value of an atmospheric waveguide interference detection model, and outputting the result of whether the atmospheric waveguide interference exists or not to the demodulation unit and the scheduling unit;
the demodulation unit is used for determining a corresponding demodulation strategy to demodulate the uplink transmission signal according to the obtained result of whether the atmospheric guided wave interference exists or not and outputting the demodulation result to the scheduling unit;
and the scheduling unit is used for determining a corresponding scheduling strategy according to the obtained result of whether the atmospheric waveguide interference exists or not and scheduling according to the demodulation result and the second measurement result.
Optionally, the interference detection unit is further configured to: when the result of whether the atmospheric guided wave interference exists is that the atmospheric guided wave interference exists, if the current detection is the first detection or the previous detection result is that the atmospheric guided wave interference does not exist, setting the detection result as that the atmospheric guided wave interference exists, and continuously outputting the result of whether the atmospheric guided wave interference exists to the demodulation unit and the scheduling unit;
when the result of whether the atmospheric guided wave interference exists is that the atmospheric guided wave interference does not exist, if the current detection is the first detection or the previous detection result is that the atmospheric guided wave interference does not exist, setting the detection result as that the atmospheric guided wave interference does not exist, and continuously outputting the result of whether the atmospheric guided wave interference exists to the demodulation unit and the scheduling unit; and if the previous detection result indicates that the atmospheric waveguide interference exists, updating the detection result to be the atmospheric waveguide interference does not exist, and continuously outputting the result of whether the atmospheric waveguide interference exists to the demodulation unit and the scheduling unit.
Optionally, a correspondence relationship between different demodulation strategies and whether there is atmospheric guided wave interference is preset in the demodulation unit; the demodulation unit is specifically configured to:
if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference exists, adopting an anti-interference demodulation strategy corresponding to the atmospheric guided wave interference to demodulate; and if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, adopting a non-interference demodulation strategy corresponding to the absence of the atmospheric guided wave interference to demodulate.
Optionally, the scheduling unit presets a corresponding relationship between different scheduling strategies and whether the atmospheric guided wave interference exists; the scheduling unit is specifically configured to:
if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference exists, adopting an anti-interference scheduling strategy corresponding to the atmospheric guided wave interference to perform scheduling processing; and if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, adopting an interference-free scheduling strategy corresponding to the absence of the atmospheric guided wave interference to perform scheduling processing.
Optionally, the apparatus further includes a measurement report adaptive unit, configured to:
when the received result of whether the atmospheric waveguide interference exists or not from the interference detection unit shows that the atmospheric waveguide interference exists, the second measurement result from the measurement unit is subjected to self-adaptive processing and then is output to the scheduling unit; and when the received result of whether the atmospheric waveguide interference exists or not from the interference detection unit shows that the atmospheric waveguide interference does not exist, transmitting a second measurement result from the measurement unit to the scheduling unit.
Optionally, the system further comprises a configuration parameter adaptation unit, configured to:
when the received result of whether the atmospheric waveguide interference exists or not from the interference detection unit shows that the atmospheric waveguide interference exists, outputting an anti-interference configuration parameter set corresponding to the atmospheric waveguide interference to the scheduling unit; and when the received result of whether the atmospheric waveguide interference exists or not from the interference detection unit shows that the atmospheric waveguide interference does not exist, outputting the interference-free configuration parameter set corresponding to the absence of the atmospheric waveguide interference to the scheduling unit.
Optionally, the method further includes an interference level determining unit, configured to:
receiving a first measurement result from the measurement unit and a result whether atmospheric waveguide interference exists from the interference detection unit, determining an interference level of the atmospheric waveguide interference according to a preset corresponding relationship between different first measurement results and each atmospheric waveguide interference level, and outputting the determined interference level to the demodulation unit; accordingly, the number of the first and second electrodes,
the demodulation unit also presets corresponding relations between different demodulation strategies and different interference levels, and is further configured to: and determining a corresponding anti-interference demodulation strategy according to the interference level from the interference level determining unit.
Optionally, the base station further includes a configuration parameter adaptation unit;
the interference level determining unit is further configured to output the interference level to a configuration parameter adaptive unit;
the configuration parameter adaptation unit is specifically configured to: and outputting different configuration parameter sets corresponding to different preset interference levels to the scheduling unit according to the received interference levels.
The invention also provides a method for realizing signal processing by the base station, which comprises the following steps: measuring atmospheric waveguide detection parameters and physical layer conventional parameters;
processing the obtained atmospheric waveguide detection parameters, and judging whether atmospheric waveguide interference exists or not by combining a preset parameter threshold value of an atmospheric waveguide interference detection model;
determining a corresponding demodulation strategy and demodulating an uplink transmission signal according to the obtained result of whether the atmospheric guided wave interference exists or not;
and determining a corresponding scheduling strategy according to the obtained result of whether the atmospheric waveguide interference exists or not, and scheduling according to the demodulation result and the result of measuring the conventional parameters of the physical layer.
Optionally, the measurement of the atmospheric waveguide detection parameter is a timed or real-time measurement.
Optionally, if it is determined that the atmospheric waveguide interference exists, the method further includes:
if the current detection is the first detection or the previous detection result is that no atmospheric waveguide interference exists, setting the detection result as the atmospheric waveguide interference exists; if the previous detection result indicates that the atmospheric waveguide interference exists, the process is ended;
if the atmospheric waveguide interference does not exist, the method further comprises the following steps:
if the current detection is the first detection or the previous detection result is that no atmospheric waveguide interference exists, setting the detection result as that no atmospheric waveguide interference exists; and if the previous detection result is that the atmospheric waveguide interference exists, updating the detection result to be that the atmospheric waveguide interference does not exist.
Optionally, the method further comprises, before: presetting a corresponding relation between different demodulation strategies and whether atmospheric guided wave interference exists or not;
the determining and demodulating the corresponding demodulation strategy comprises:
if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference exists, demodulating according to an anti-interference demodulation strategy corresponding to the atmospheric guided wave interference; and if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, demodulating according to a non-interference demodulation strategy corresponding to the absence of the atmospheric guided wave interference.
Optionally, the method further comprises, before: presetting a corresponding relation between different scheduling strategies and whether atmospheric guided wave interference exists or not;
the determining the corresponding scheduling policy and scheduling according to the demodulation result includes:
if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference exists, adopting an anti-interference scheduling strategy corresponding to the atmospheric guided wave interference to perform scheduling processing; and if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, adopting an interference-free scheduling strategy corresponding to the absence of the atmospheric guided wave interference to perform scheduling processing.
Optionally, the interference rejection scheduling policy includes: fast power control; or fast adaptive modulation and coding AMC; or during access and switching, intelligent processing is adopted; or adaptive resource allocation mechanisms for different traffic types; or an adaptive downlink transmission mechanism.
Optionally, before determining the corresponding scheduling policy and scheduling according to the demodulation result and the result of measuring the physical layer conventional parameter, the method further includes:
and when the result of whether the atmospheric waveguide interference exists shows that the atmospheric waveguide interference exists, carrying out self-adaptive processing on the obtained physical layer conventional parameters.
Optionally, after determining whether there is atmospheric waveguide interference, before determining a corresponding scheduling policy and performing scheduling according to a demodulation result, the method further includes:
if the result of whether the atmospheric waveguide interference exists indicates that the atmospheric waveguide interference exists, acquiring an anti-interference configuration parameter set corresponding to the atmospheric waveguide interference; if the result of whether the atmospheric waveguide interference exists shows that the atmospheric waveguide interference does not exist, acquiring an interference-free configuration parameter set corresponding to the absence of the atmospheric waveguide interference; accordingly, the number of the first and second electrodes,
the determining the corresponding scheduling policy and scheduling according to the demodulation result and the result of measuring the physical layer conventional parameter includes: and determining a corresponding scheduling strategy according to the obtained result of whether the atmospheric waveguide interference exists or not, and scheduling the demodulated result according to the obtained anti-interference configuration parameter set or the obtained non-interference configuration parameter set.
Optionally, after determining whether there is atmospheric waveguide interference, before determining a corresponding scheduling policy and performing scheduling according to a demodulation result, the method further includes:
determining the interference level of atmospheric waveguide interference according to the obtained atmospheric waveguide detection parameters, the result of whether the atmospheric waveguide interference exists or not and the preset corresponding relationship between different atmospheric waveguide detection parameters and the interference levels of the atmospheric waveguides; accordingly, the number of the first and second electrodes,
the determining and demodulating the corresponding demodulation strategy comprises:
and determining a corresponding anti-interference demodulation strategy for demodulation according to the preset corresponding relation between different demodulation strategies and different interference grades and the obtained interference grade.
Optionally, when acquiring the interference-free configuration parameter set or the interference-free configuration parameter set, the method further includes: and acquiring different configuration parameter sets corresponding to different preset interference levels according to the obtained interference levels.
Optionally, when the base station is in a closed-loop power control mode of a physical uplink control channel PUCCH, and when it is determined that atmospheric waveguide interference exists, the scheduling policy is: and starting rapid processing of PUCCH closed-loop power control.
Optionally, the starting of the fast processing of PUCCH closed loop power control includes: fast up and slow down, or increase the target received power.
Optionally, when the base station processes according to the service type and when it is determined that the atmospheric waveguide interference exists, the scheduling policy is:
for discrete services, resource allocation is carried out within a power limited range; for continuous service, the system can be used without the limit of the power limited range.
Optionally, when the base station is in a closed-loop power control processing mode of a physical uplink shared channel PUSCH, and when it is determined that atmospheric waveguide interference exists, the scheduling policy is: and starting the quick processing of the closed-loop power control of the PUSCH.
Optionally, when the base station is in an uplink adaptive modulation and coding AMC processing mode and it is determined that there is atmospheric waveguide interference, the scheduling policy is: and starting adaptive uplink AMC processing.
Optionally, when the base station is in access or handover and when it is determined that there is atmospheric waveguide interference, the scheduling policy is:
in the access/switching stage, when interference rises, the power is quickly raised, and when the power is limited, the MCS level is reduced; and/or during an access/handover phase, when interference rises, selecting a corresponding set of configuration parameters according to the interference level.
Optionally, when the base station is in a transmission mode and when it is determined that the atmospheric waveguide interference exists, the scheduling policy is: when using TM8 transmissions, the technique of TM3, which is not strongly correlated with uplink measurements, is adopted.
Compared with the prior art, the technical scheme of the application comprises the following steps: measuring atmospheric waveguide detection parameters and physical layer conventional parameters; processing the obtained atmospheric waveguide detection parameters, and judging whether atmospheric waveguide interference exists or not by combining a preset parameter threshold value of an atmospheric waveguide interference detection model; determining a corresponding demodulation strategy according to the obtained result of whether the atmospheric guided wave interference exists or not, and demodulating the obtained physical layer conventional parameters on the uplink transmission signals; and determining a corresponding scheduling strategy according to the obtained result of whether the atmospheric waveguide interference exists or not, and scheduling according to the demodulation result and the result of measuring the conventional parameters of the physical layer. The technical scheme provided by the invention effectively deals with the influence of atmospheric waveguide interference on the interfered base station, and well solves the problems that the performance of the uplink system of the base station, especially the base station in TDD-LTE is reduced, the wireless call completing rate, the call dropping rate and the switching success rate are seriously deteriorated, and the user experience is poor under the high interference of the atmospheric waveguide in the prior art.
Furthermore, the invention realizes the self-adaptive configuration of the configuration parameters used by the scheduling unit through the configuration parameter self-adaptive unit according to the interference condition, and better performs corresponding processing on the atmospheric waveguide interference.
Further, the invention further refines different demodulation processing of the atmospheric waveguide interference of different interference levels by dividing the atmospheric waveguide interference levels, and better avoids the atmospheric waveguide interference.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic diagram of a base station according to the present invention;
FIG. 2 is a flow chart of a method for implementing signal processing by a base station according to the present invention;
fig. 3 is a flowchart illustrating a base station implementing signal processing according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Fig. 1 is a schematic structural diagram of a base station according to the present invention, as shown in fig. 1, which at least includes: a measurement unit 100, an interference detection unit 101, a demodulation unit 102, and a scheduling unit 103; wherein the content of the first and second substances,
the measurement unit 100 is configured to measure an atmospheric waveguide detection parameter, and output a first measurement result to the interference detection unit 101, where the measurement may be performed in a timed manner or in real time; and, measuring the physical layer general parameter and outputting the second measurement result to the scheduling unit 103, which may adopt real-time measurement.
The atmospheric waveguide detection parameters are preset identification parameters of the atmospheric waveguide interference detection model, such as: noise and Interference (NI, Noise and Interference) levels measured over certain time-frequency domain resources; and/or NI levels on randomly extracted frequency bands.
The physical layer general parameters include, but are not limited to: the measurement information is collected on any one of a Physical Uplink Control Channel (PUCCH), a Sounding Reference Signal (SRS), a Physical Uplink Shared Channel (PUSCH), and a Physical Random Access Channel (PRACH), and is not limited to low noise and interference levels, reception power, and the like.
The interference detection unit 101 is configured to process the first measurement result from the measurement unit 100, determine whether atmospheric waveguide interference exists by combining a preset parameter threshold of an atmospheric waveguide interference detection model, and output a result of whether atmospheric waveguide interference exists to the demodulation unit 102 and the scheduling unit 103.
Specifically, the method comprises the following steps:
and performing energy calculation and processing, such as measured value smoothing processing, averaging processing and the like, on the preset identification parameter information of the atmospheric waveguide interference detection model contained in the first measurement result, and if the processed result exceeds a preset parameter threshold, judging that atmospheric waveguide interference exists. Furthermore, hysteresis processing can be carried out during judgment, so that misjudgment can be reduced, and the state ping-pong can be prevented. The specific implementation of the energy calculation and processing, the hysteresis processing, and the like belongs to the known technology of those skilled in the art, and the specific implementation is not used to limit the protection scope of the present invention, and is not described herein again.
Such as: assuming that the parameter threshold of the preset atmospheric waveguide interference detection model is an NI threshold and the threshold is-104 dbm, if the identification parameter information of the preset atmospheric waveguide interference detection model, i.e. the value of NI, contained in the first measurement result is greater than-104 dbm, it indicates that atmospheric waveguide interference exists.
Further, the air conditioner is provided with a fan,
when the result of whether the atmospheric guided wave interference exists is that the atmospheric guided wave interference exists, if the current detection is the first detection or the previous detection result is that the atmospheric guided wave interference does not exist, setting the detection result as that the atmospheric guided wave interference exists, and continuously outputting the result of whether the atmospheric guided wave interference exists to the demodulation unit 102 and the scheduling unit 103; if the previous detection result indicates that the atmospheric waveguide interference exists, the result of whether the atmospheric waveguide interference exists is not output to the demodulation unit 102 and the scheduling unit 103;
when the result of whether the atmospheric guided wave interference exists is that the atmospheric guided wave interference does not exist, if the current detection is the first detection or the previous detection result is that the atmospheric guided wave interference does not exist, setting the detection result as that the atmospheric guided wave interference does not exist, and continuously outputting the result of whether the atmospheric guided wave interference exists to the demodulation unit 102 and the scheduling unit 103; if the previous detection result is that the atmospheric waveguide interference exists, the detection result is updated to be that the atmospheric waveguide interference does not exist, and the result of whether the atmospheric waveguide interference exists or not is continuously output to the demodulation unit 102 and the scheduling unit 103.
The demodulating unit 102 is configured to determine a corresponding demodulation strategy to demodulate the uplink transmission signal according to an obtained result of whether the atmospheric guided wave interference exists, and output a demodulation result to the scheduling unit 103.
In particular, the amount of the solvent to be used,
the corresponding relation between different demodulation strategies and whether the atmospheric guided wave interference exists or not can be preset in the demodulation unit 102, and if the obtained result of whether the atmospheric guided wave interference exists or not shows that the atmospheric guided wave interference exists, the anti-interference demodulation strategy corresponding to the atmospheric guided wave interference exists is adopted for demodulation; if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, adopting an interference-free demodulation strategy corresponding to the absence of the atmospheric guided wave interference, namely, adopting the existing normal demodulation strategy to demodulate.
And the scheduling unit 103 is configured to determine a corresponding scheduling policy according to the obtained result of whether the atmospheric waveguide interference exists, and perform scheduling according to the demodulation result and the second measurement result. In particular, the amount of the solvent to be used,
the corresponding relation between different scheduling strategies and whether the atmospheric guided wave interference exists or not can be preset in the scheduling unit 103, if the obtained result of whether the atmospheric guided wave interference exists or not shows that the atmospheric guided wave interference exists, the anti-interference scheduling strategy corresponding to the atmospheric guided wave interference exists is adopted for scheduling; and if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, adopting an interference-free scheduling strategy corresponding to the absence of the atmospheric guided wave interference, namely, adopting the existing normal scheduling strategy to perform scheduling processing.
The interference rejection scheduling policy includes, but is not limited to: fast power control; fast Adaptive Modulation and Coding (AMC); intelligent processing is adopted in specific scenes such as access and switching; adaptive resource allocation mechanisms for different traffic types; and an adaptive downlink transmission mechanism is adopted.
Further, the base station of the present invention further includes:
a measurement reporting adaptive unit 104, configured to, when the received result of whether the atmospheric waveguide interference exists from the interference detection unit 101 indicates that the atmospheric waveguide interference exists, perform adaptive processing on a second measurement result from the measurement unit 100, and output the second measurement result to the scheduling unit 103; when the received result of whether the atmospheric waveguide interference exists or not from the interference detection unit 101 indicates that the atmospheric waveguide interference does not exist, the second measurement result from the measurement unit 100 is transmitted to the scheduling unit 103.
Further, the base station of the present invention further includes:
a configuration parameter adaptive unit 106, configured to output, to the scheduling unit 103, an anti-interference configuration parameter set corresponding to the presence of atmospheric waveguide interference when the received result of whether the atmospheric waveguide interference is present from the interference detection unit 101 indicates that the atmospheric waveguide interference is present; when the received result of whether or not there is atmospheric waveguide interference from the interference detection unit 101 indicates that there is no atmospheric waveguide interference, the interference-free configuration parameter set corresponding to the absence of atmospheric waveguide interference is output to the scheduling unit 103.
Through the configuration parameter adaptive unit 106, according to the interference situation, adaptive configuration of the configuration parameters used by the scheduling unit 103 is realized, and corresponding processing is better performed on the atmospheric waveguide interference.
Further, the base station of the present invention further includes:
an interference level determining unit 105, configured to receive the first measurement result from the measuring unit 100 and the result of whether there is atmospheric waveguide interference from the interference detecting unit 101, determine an interference level of the atmospheric waveguide interference according to a preset correspondence between different first measurement results and each atmospheric waveguide interference level, and output the interference level to the demodulating unit 102. Specifically, if the result of whether the atmospheric waveguide interference exists indicates that the atmospheric waveguide interference does not exist, it may be determined that the interference level is no interference, such as interference level 0; if the result of the presence or absence of the atmospheric waveguide interference indicates the presence of the atmospheric waveguide interference, a light interference such as interference level 1, a moderate interference such as interference level 2, or a heavy interference such as interference level 3, etc. can be determined.
The determination of different interference levels, i.e. interference degrees, may be, for example, obtained by determining the interference magnitude, and identifying the interference degrees of different symbols or the interference degree of the demodulation reference signal.
When the base station of the present invention includes the interference level determination unit 105,
the demodulation unit 102 specifically includes:
the correspondence between different demodulation strategies and different interference levels may be preset in the demodulation unit 102, and the corresponding anti-interference demodulation strategy may be determined according to the interference level from the interference level determination unit 105. At this time, when the atmospheric waveguide interference exists, different demodulation processing of the atmospheric waveguide interference with different interference levels is further refined, and the atmospheric waveguide interference is better avoided. Such as:
interference level 0 corresponds to normal demodulation strategies such as channel estimation using interpolation and/or Maximum Ratio Combining (MRC) and Interference Rejection Combining (IRC) adaptive techniques, but is not limited thereto;
interference level 1 corresponds to a demodulation strategy under low interference, such as channel estimation using interpolation, and/or using IRC techniques, but not limited thereto;
interference level 2 corresponds to a demodulation strategy under medium interference, such as channel estimation using a push-down method and/or using an IRC technique, but is not limited thereto;
interference level 3 corresponds to demodulation strategies under high interference, such as, but not limited to, channel estimation using extrapolation, and/or IRC techniques, and/or weighting of signals on different symbols according to NI level.
If the base station of the present invention includes the interference level determination unit 105 and the configuration parameter adaptation unit 106, then, at this time,
the interference level determining unit 105 is further configured to output the interference level to the configuration parameter adapting unit 106;
the configuration parameter adaptation unit 106 is specifically configured to: according to the received interference level, different configuration parameter sets corresponding to different preset interference levels are output to the scheduling unit 103. Such as:
under different interference levels, one or all of the following parameters are configured according to the following suggested values, but are not limited to the following:
when the interference level is interference level 0, the configuration parameter set includes: the PUSCH nominal power is configured to be-87 dBm, the PUSCH path loss compensation factor is configured to be 0.8, the PUCCH nominal power is configured to be-105 dBm, and the PRACH target receiving power is configured to be-100 dBm;
when the interference level is interference level 1, the configuration parameter set includes: the PUSCH nominal power is configured to-75 dBm, the PUSCH path loss compensation factor is configured to 0.8, the PUCCH nominal power is configured to-105 dBm, and the PRACH target receiving power is configured to-100 dBm;
when the interference level is interference level 2, the configuration parameter set includes: the PUSCH nominal power is configured to be-75 dBm, the PUSCH path loss compensation factor is configured to be 0.8, the PUCCH nominal power is configured to be-100 dBm, and the PRACH target receiving power is configured to be-96 dBm;
when the interference level is interference level 3, the configuration parameter set includes: the PUSCH nominal power is configured to be-75 dBm, the PUSCH path loss compensation factor is configured to be 1, the PUCCH nominal power is configured to be-90 dBm, the PRACH target receiving power is configured to be-90 dBm, and the power difference deltaPreamblemsg3 between the third message (Msg3) and the PRACH in the LTE access or switching process is configured to be 4.
The embodiment of the invention can be seen that when the atmospheric waveguide interference exists, the corresponding demodulation strategy and scheduling strategy are adopted in a targeted manner, the influence of the atmospheric waveguide interference on the interfered base station is effectively solved, and the problems that the performance of the uplink system of the base station, especially the base station in TDD-LTE is reduced, the wireless call completing rate, the call dropping rate and the switching success rate are seriously deteriorated, and the user experience is poor in the prior art under high interference of the atmospheric waveguide and the like are solved. Further, by configuring the parameter adaptive unit 106, according to the interference situation, adaptive configuration of the configuration parameters used by the scheduling unit 103 is realized, and corresponding processing is better performed on the atmospheric waveguide interference. Further, by dividing the interference level of the atmospheric waveguide, different demodulation processing of atmospheric waveguide interference of different interference levels is further refined, and the atmospheric waveguide interference is better avoided.
The following describes a specific implementation of the scheduling unit 103 in detail with reference to different application scenarios.
For the case that the base station is in the PUCCH closed-loop power control mode:
when there is atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is: starting the fast processing of PUCCH closed-loop power control may specifically include: overcoming fast ramping up and down of high interference or increasing the target received power, wherein,
fast ramp-up and ramp-down to overcome high interference includes: after the rapid processing of the PUCCH closed-loop power control, comparing the parameter value from the measurement report adaptive unit 104 with a preset NI threshold of the PUCCH closed-loop power control, and when the NI level after the adaptive processing is higher than the NI threshold, controlling the PUCCH closed-loop power control to perform rapid power boost; and when the NI is not higher than the NI threshold, carrying out PUCCH closed-loop power control by adopting the normal speed.
Increasing the target received power includes: comparing the parameter value from the measurement report adaptive unit 104 with a preset NI threshold value of PUCCH closed-loop power control, and scheduling and increasing the target value of PUCCH closed-loop power control when the NI level after adaptive processing is higher than the NI threshold value; otherwise, the target value of PUCCH closed-loop power control is unchanged. Where the measured NI level minus the NI threshold is the amplitude of the upshifting. After the target value is increased, the power control adjusts the power of the UE side through a power adjustment command under the new target value.
And selecting different resource allocation mechanisms for the base station according to the service types:
when there is atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is: respectively processing according to the service types, specifically comprising: for discrete services, resource allocation is carried out within a power limited range in order to prevent AMC jitter; for continuous service, the system can be used without the limit of the power limited range.
For the case that the base station is in the PUSCH closed-loop power control processing mode:
when there is atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is: starting the fast processing of the closed-loop power control of the PUSCH, such as: the fast power boosting strategy according to Hybrid Automatic Repeat-ReQuest (HARQ) Fail specifically includes but is not limited to: the step length is increased in the quick processing of the closed-loop power control of the PUSCH; or, immediately adjusting power when HARQ fails; or if the interference is raised, the power control command word is ensured to be effective in time by modifying the resource allocation.
After the scheduling manner, if there is no atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is accordingly: the step size in the quick processing of the closed-loop power control of the PUSCH becomes smaller; or, the power is not adjusted immediately when the HARQ fails; or, the resource allocation is not influenced by issuing the power control command word.
For the case that the base station is in the uplink Adaptive Modulation and Coding (AMC) processing mode:
when there is atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is: starting an adaptive uplink AMC processing scheme by adopting the following modes, but not limited to: mainly depends on the outer loop AMC adjustment information, the inner loop AMC is the second time; or a fixed AMC policy; or increase the channel tracking speed of AMC.
After the scheduling manner, if there is no atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is accordingly: and normal processing of recovering the normal state.
For the case where the base station is in access:
when there is atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is: an adaptive access handling scheme is initiated. And intelligent processing is carried out when the UE is accessed so as to better ensure the call completing rate. The method comprises the following steps: in the access stage, when interference rises, the power is quickly raised, and when the power is limited, various measures including reducing the MCS level can be adopted to ensure the call completing rate; and/or, in the access stage, when the interference rises, selecting a corresponding configuration parameter set according to the interference level, thereby realizing the maximum connection income under the interference level.
After the scheduling manner, if there is no atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is accordingly: and normal processing of recovering the normal state.
For the case where the base station is in handover:
when there is atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is: and starting a self-adaptive switching processing scheme, and intelligently processing the UE during switching so as to better switch success rate. The method comprises the following steps: in the switching stage, when interference rises, the power is quickly raised, and when the power is limited, various measures including reducing the MCS level can be adopted to ensure the switching success rate; and/or in the switching stage, when the interference rises, selecting a corresponding configuration parameter set according to the interference level, thereby realizing the maximum gain of the switching success rate under the interference level.
After the scheduling manner, if there is no atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is accordingly: and normal processing of recovering the normal state.
For the case where the base station is in the transmission mode:
after the scheduling manner, if there is no atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is accordingly: starting an adaptive transmission scheme, flexibly using transmission techniques, such as: when TM8 transmission is used, since weight estimation and the like under TM8 depend on uplink measurement, the uplink measurement is inaccurate under atmospheric waveguide interference, and at this time, TM8 has no performance gain, and the technique of TM3 which is not strongly correlated with the uplink measurement can be adopted.
After the scheduling manner, if there is no atmospheric waveguide interference, the scheduling policy of the scheduling unit 103 is accordingly: and normal processing of recovering the normal state.
It should be noted that, when the base station is in the OMC configuration process, the background may configure the measurement unit 100, for example, start the switch of the atmospheric waveguide interference mode. If the atmospheric waveguide interference mode is started, the parameters to be configured in the atmospheric waveguide interference mode may be as follows: all necessary measurement parameters including atmospheric waveguide interference-specific detection parameters. The measuring unit 100 performs measurement and report according to the issued content; all judgment interference thresholds or interference level thresholds and the like used by the interference detection unit 101 and the interference level determination unit 105; and all configuration parameter sets of the scheduling unit 103 corresponding to the preset interference level, such as an NI threshold used for 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, including:
step 200: and measuring the atmospheric waveguide detection parameters and the physical layer conventional parameters.
The measurement of the atmospheric waveguide detection parameters can adopt timing or real-time measurement; the measurement of the conventional parameters of the physical layer can adopt real-time measurement.
The atmospheric waveguide detection parameters are preset identification parameters of the atmospheric waveguide interference detection model, such as: noise and Interference (NI, Noise and Interference) levels measured over certain time-frequency domain resources; and/or NI levels on randomly extracted frequency bands.
The physical layer general parameters include, but are not limited to: the measurement information is collected on any one of a Physical Uplink Control Channel (PUCCH), a Sounding Reference Signal (SRS), a Physical Uplink Shared Channel (PUSCH), and a Physical Random Access Channel (PRACH), and is not limited to low noise and interference levels, reception power, and the like.
Step 201: and processing the obtained atmospheric waveguide detection parameters, and judging whether atmospheric waveguide interference exists or not by combining a preset parameter threshold value of an atmospheric waveguide interference detection model.
In this step, the processing of the obtained atmospheric waveguide detection parameters includes but is not limited to: energy calculation and processing such as measurement value smoothing processing, averaging processing, and the like. Furthermore, hysteresis processing can be carried out during judgment, so that misjudgment can be reduced, and the state ping-pong can be prevented. The specific implementation of the energy calculation and processing, the hysteresis processing, and the like belongs to the known technology of those skilled in the art, and the specific implementation is not used to limit the protection scope of the present invention, and is not described herein again.
And if the processed result exceeds a preset parameter threshold, judging that the atmospheric waveguide interference exists. Such as: assuming that the parameter threshold of the preset atmospheric waveguide Interference detection model is a Noise and Interference (NI) threshold and the threshold is-104 dbm, if the identification parameter information of the preset atmospheric waveguide Interference detection model, i.e., NI, contained in the first measurement result is greater than-104 dbm, it indicates that atmospheric waveguide Interference exists.
Further, the air conditioner is provided with a fan,
in this step, if it is determined that atmospheric waveguide interference exists, and the current detection is the first detection or the previous detection result is that atmospheric waveguide interference does not exist, setting the detection result as the atmospheric waveguide interference; if the previous detection result is that atmospheric waveguide interference exists, ending the process and waiting for the next detection;
in this step, if it is determined that no atmospheric waveguide interference exists, and the current detection is the first detection or the previous detection result is that no atmospheric waveguide interference exists, setting the detection result as no atmospheric waveguide interference; and if the previous detection result is that the atmospheric waveguide interference exists, updating the detection result to be that the atmospheric waveguide interference does not exist.
Step 202: and determining a corresponding demodulation strategy to demodulate the uplink transmission signal according to the obtained result of whether the atmospheric guided wave interference exists or not.
The method also comprises the following steps: presetting the corresponding relation between different demodulation strategies and whether the atmospheric guided wave interference exists or not,
the method specifically comprises the following steps: if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference exists, demodulating according to an anti-interference demodulation strategy corresponding to the atmospheric guided wave interference; and if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, demodulating according to an interference-free demodulation strategy corresponding to the absence of the atmospheric guided wave interference, namely, the existing normal demodulation strategy.
Step 203: and determining a corresponding scheduling strategy according to the obtained result of whether the atmospheric waveguide interference exists or not, and scheduling according to the demodulation result and the result of measuring the conventional parameters of the physical layer.
The method also comprises the following steps: and presetting a corresponding relation between different scheduling strategies and whether the atmospheric guided wave interference exists.
The method specifically comprises the following steps: if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference exists, adopting an anti-interference scheduling strategy corresponding to the atmospheric guided wave interference to perform scheduling processing; and if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, adopting an interference-free scheduling strategy corresponding to the absence of the atmospheric guided wave interference, namely, adopting the existing normal scheduling strategy to perform scheduling processing.
The interference rejection scheduling policy includes, but is not limited to: fast power control; fast Adaptive Modulation and Coding (AMC); intelligent processing is adopted in specific scenes such as access and switching; adaptive resource allocation mechanisms for different traffic types; and an adaptive downlink transmission mechanism is adopted.
Further, before step 203, the method further includes:
and when the result of whether the atmospheric waveguide interference exists shows that the atmospheric waveguide interference exists, carrying out self-adaptive processing on the obtained physical layer conventional parameters.
Further, after step 201 and before step 203, the method further includes: if the result of whether the atmospheric waveguide interference exists indicates that the atmospheric waveguide interference exists, acquiring an anti-interference configuration parameter set corresponding to the atmospheric waveguide interference; and if the result of whether the atmospheric waveguide interference exists shows that the atmospheric waveguide interference does not exist, acquiring a non-interference configuration parameter set corresponding to the absence of the atmospheric waveguide interference. At this time, the process of the present invention,
step 203 specifically includes: and determining a corresponding scheduling strategy according to the obtained result of whether the atmospheric waveguide interference exists or not, and scheduling the obtained anti-interference configuration parameter set or the obtained non-interference configuration parameter set according to the demodulation result. Therefore, the configuration parameter self-adaptive unit is configured, the self-adaptive configuration of the configuration parameters used by the scheduling unit is realized according to the interference condition, and the corresponding processing is better performed on the atmospheric waveguide interference.
Further, after step 201 and before step 203, the method further comprises:
determining the interference level of atmospheric waveguide interference according to atmospheric waveguide detection parameters, the result of whether the atmospheric waveguide interference exists and the preset corresponding relationship between different atmospheric waveguide detection parameters and the interference levels of the atmospheric waveguides; thus, if no atmospheric waveguide interference exists, the interference level is determined to be no interference, such as interference level 0; if atmospheric waveguide interference is present, a light interference, such as interference level 1, a moderate interference, such as interference level 2, or a heavy interference, such as interference level 3, may be determined. The determination of different interference levels, i.e. interference degrees, may be, for example, obtained by determining the interference magnitude, and identifying the interference degrees of different symbols or the interference degree of the demodulation reference signal.
Correspondingly, step 202 specifically includes: presetting the corresponding relation between different demodulation strategies and different interference levels, and determining the corresponding anti-interference demodulation strategy for demodulation according to the obtained interference levels. At this time, when the atmospheric waveguide interference exists, different demodulation processing of the atmospheric waveguide interference with different interference levels is further refined, and the atmospheric waveguide interference is better avoided. Such as:
interference level 0 corresponds to normal demodulation strategies such as channel estimation using interpolation and/or Maximum Ratio Combining (MRC) and Interference Rejection Combining (IRC) adaptive techniques, but is not limited thereto;
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 not limited thereto;
the interference level 2 corresponds to a demodulation strategy under medium interference, such as using a forward method for channel estimation and/or using an IRC adaptive technique, but is not limited thereto;
interference level 3 corresponds to demodulation strategies under high interference, such as, but not limited to, channel estimation using extrapolation and/or IRC adaptation techniques.
If the method of the present invention further comprises the step of obtaining the interference-free configuration parameter set or the interference-free configuration parameter set, then, when obtaining the interference-free configuration parameter set or the interference-free configuration parameter set, the method further comprises: and acquiring different configuration parameter sets corresponding to different preset interference levels according to the obtained interference levels. Such as: under different interference levels, one or all of the following parameters are configured according to the following suggested values, but are not limited to the following:
when the interference level is interference level 0, the configuration parameter set includes: the PUSCH nominal power is configured to be-87 dBm, the PUSCH path loss compensation factor is configured to be 0.8, the PUCCH nominal power is configured to be-105 dBm, and the PRACH target receiving power is configured to be-100 dBm;
when the interference level is interference level 1, the configuration parameter set includes: the PUSCH nominal power is configured to-75 dBm, the PUSCH path loss compensation factor is configured to 0.8, the PUCCH nominal power is configured to-105 dBm, and the PRACH target receiving power is configured to-100 dBm;
when the interference level is interference level 2, the configuration parameter set includes: the PUSCH nominal power is configured to be-75 dBm, the PUSCH path loss compensation factor is configured to be 0.8, the PUCCH nominal power is configured to be-100 dBm, and the PRACH target receiving power is configured to be-96 dBm;
when the interference level is interference level 3, the configuration parameter set includes: the PUSCH nominal power is configured to be-75 dBm, the PUSCH path loss compensation factor is configured to be 1, the PUCCH nominal power is configured to be-90 dBm, the PRACH target received power is configured to be-90 dBm, and the power difference deltaPreamblemsg3 between the Msg3 and the PRACH is configured to be 4.
For the base station in different application scenarios, the scheduling policy in step 203 of the present invention includes:
for the case that the base station is in the PUCCH closed-loop power control mode: when atmospheric waveguide interference exists, the scheduling strategy is as follows: starting the fast processing of PUCCH closed-loop power control may specifically include: overcoming fast ramping up and down of high interference or increasing the target received power, wherein,
fast ramp-up and ramp-down to overcome high interference includes: after the rapid processing of PUCCH closed-loop power control, comparing a parameter value from a measurement reporting self-adaptive unit with a preset NI threshold of the PUCCH closed-loop power control, and controlling the PUCCH closed-loop power control to perform rapid power boost when the NI level after the self-adaptive processing is higher than the threshold; and when the NI is not higher than the NI threshold, carrying out PUCCH closed-loop power control by adopting the normal speed.
Increasing the target received power includes: comparing the parameter value from the measurement reporting self-adapting unit with a preset NI threshold value of PUCCH closed-loop power control, and scheduling and increasing the target value of PUCCH closed-loop power control when the NI level after self-adapting processing is higher than the threshold value; otherwise, the target value of PUCCH closed-loop power control is unchanged. Where the measured NI level minus the NI threshold is the amplitude of the upshifting. After the target value is increased, the power control adjusts the power of the UE side through a power adjustment command under the new target value.
And selecting different resource allocation mechanisms for the base station according to the service types: when atmospheric waveguide interference exists, the scheduling strategy is as follows: respectively processing according to the service types, specifically comprising: for discrete services, resource allocation is carried out within a power limited range in order to prevent AMC jitter; for continuous service, the system can be used without the limit of the power limited range.
For the case that the base station is in the PUSCH closed-loop power control processing mode: when atmospheric waveguide interference exists, the scheduling strategy is as follows: starting the fast processing of the closed-loop power control of the PUSCH, such as: the fast power boosting strategy according to Hybrid Automatic Repeat-ReQuest (HARQ) Fail specifically includes, but is not limited to: the step length is increased in the quick processing of the closed-loop power control of the PUSCH; or, immediately adjusting power when HARQ fails; or if the interference is raised, the power control command word is ensured to be effective in time by modifying the resource allocation.
After the scheduling mode, if there is no atmospheric waveguide interference, the scheduling policy is accordingly: the step size in the quick processing of the closed-loop power control of the PUSCH becomes smaller; or, the power is not adjusted immediately when the HARQ fails; or, the resource allocation is not influenced by issuing the power control command word.
For the case that the base station is in the uplink Adaptive Modulation and Coding (AMC) processing mode: when atmospheric waveguide interference exists, the scheduling strategy is as follows: starting an adaptive uplink AMC processing scheme by adopting the following modes, but not limited to: mainly depends on the outer loop AMC adjustment information, the inner loop AMC is the second time; or a fixed AMC policy; or increase the channel tracking speed of AMC.
After the scheduling mode, if there is no atmospheric waveguide interference, the corresponding scheduling policy is: and normal processing of recovering the normal state.
For the case where the base station is in access: when atmospheric waveguide interference exists, the scheduling strategy is as follows: an adaptive access handling scheme is initiated. And intelligent processing is carried out when the UE is accessed so as to better ensure the call completing rate. The method comprises the following steps: in the access stage, when interference rises, the power is quickly raised, and when the power is limited, various measures including reducing the MCS level can be adopted to ensure the call completing rate; and/or in the access stage, when the interference rises, selecting a corresponding configuration parameter set according to the interference level, thereby realizing the maximum access income under the interference level.
After the scheduling mode, if there is no atmospheric waveguide interference, the corresponding scheduling policy is: and normal processing of recovering the normal state.
For the case where the base station is in handover: when atmospheric waveguide interference exists, the scheduling strategy is as follows: and starting a self-adaptive switching processing scheme, and intelligently processing the UE during switching so as to better switch success rate. The method comprises the following steps: in the switching stage, when interference rises, the power is quickly raised, and when the power is limited, various measures including reducing the MCS level can be adopted to ensure the switching success rate; and/or in the switching stage, when the interference rises, selecting a corresponding configuration parameter set according to the interference level, thereby realizing the maximum gain of the switching success rate under the interference level.
After the scheduling mode, if there is no atmospheric waveguide interference, the corresponding scheduling policy is: and normal processing of recovering the normal state.
For the case where the base station is in the transmission mode: after the scheduling mode, if the atmospheric waveguide interference exists, the scheduling policy is correspondingly: starting an adaptive transmission scheme, flexibly using transmission techniques, such as: when TM8 transmission is used, since weight estimation and the like under TM8 depend on uplink measurement, the uplink measurement is inaccurate under atmospheric waveguide interference, and at this time, TM8 has no performance gain, and the technique of TM3 which is not strongly correlated with the uplink measurement can be adopted.
After the scheduling mode, if there is no atmospheric waveguide interference, the corresponding scheduling policy is: and normal processing of recovering the normal state.
It should be noted that, when the base station is in the configuration process of the OMC, the background may configure the measurement unit, for example, start a switch of the atmospheric waveguide interference mode. If the atmospheric waveguide interference mode is started, the parameters to be configured in the atmospheric waveguide interference mode may be as follows: all necessary measurement parameters including atmospheric waveguide interference-specific detection parameters. The measuring unit measures and reports according to the issued content; all judgment interference thresholds or interference level thresholds and the like used by the interference detection unit and the interference level determination unit; and all configuration parameter sets of the scheduling units corresponding to the preset interference level, such as an NI threshold used for PUCCH fast power control.
Fig. 3 is a schematic flow chart of an embodiment of implementing signal processing by a base station according to the present invention, as shown in fig. 3, including:
step 300: and the measuring unit measures the specific parameters according to the background configuration and reports the measured data. The parameters to be measured comprise atmospheric waveguide detection parameters and physical layer conventional parameters.
Step 301 to step 302: the interference detection unit identifies whether atmospheric waveguide interference exists according to the data reported by measurement and a preset parameter threshold of an atmospheric waveguide interference detection model, and if the atmospheric waveguide interference does not exist, the step 303 is executed; if there is atmospheric waveguide interference, proceed to step 304 and step 305.
Step 303: and finishing the process according to the normal processing of the base station without the interference of the atmospheric waveguide.
Step 304 to step 305: when the atmospheric waveguide interference exists, determining the interference level of the currently existing atmospheric waveguide interference according to the preset corresponding relation between different atmospheric waveguide detection parameters and the interference levels of the atmospheric waveguides.
Step 306: adaptively selecting a corresponding demodulation strategy according to the interference level and demodulating the selected strategy, and then entering step 308.
Step 307: and when the atmospheric waveguide interference exists, performing adaptive processing on the obtained physical layer conventional parameters. It should be noted that there is no strict order between the steps 304. As long as processing is complete before step 308.
Step 308: and adaptively using a corresponding configuration parameter set according to the interference level, and scheduling the result after the adaptive processing.
The embodiment of the invention can be seen that when the atmospheric waveguide interference exists, the corresponding demodulation strategy and scheduling strategy are adopted in a targeted manner, the influence of the atmospheric waveguide interference on the interfered base station is effectively solved, and the problems that the performance of the uplink system of the base station, especially the base station in TDD-LTE is reduced, the wireless call completing rate, the call dropping rate and the switching success rate are seriously deteriorated, and the user experience is poor in the prior art under high interference of the atmospheric waveguide and the like are solved. Furthermore, 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 corresponding processing is better performed on the atmospheric waveguide interference. Further, by dividing the interference level of the atmospheric waveguide, different demodulation processing of atmospheric waveguide interference of different interference levels is further refined, and the atmospheric waveguide interference is better avoided.
The above description is only a preferred example of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (25)

1. A base station, comprising: a measurement unit (100), an interference detection unit (101), a demodulation unit (102), and a scheduling unit (103); wherein the content of the first and second substances,
the measuring unit (100) is used for measuring the atmospheric waveguide detection parameters and outputting a first measurement result to the interference detection unit (101); measuring the conventional parameters of the physical layer, and outputting a second measurement result to a scheduling unit (103);
the interference detection unit (101) is used for processing a first measurement result from the measurement unit (100), judging whether atmospheric waveguide interference exists or not by combining a preset parameter threshold value of an atmospheric waveguide interference detection model, and outputting a result of whether the atmospheric waveguide interference exists or not to the demodulation unit (102) and the scheduling unit (103);
the demodulation unit (102) is used for determining a corresponding demodulation strategy to demodulate the uplink transmission signal according to the obtained result of whether the atmospheric guided wave interference exists or not and outputting the demodulation result to the scheduling unit (103);
and the scheduling unit (103) is used for determining a corresponding scheduling strategy according to the obtained result of whether the atmospheric waveguide interference exists or not and performing scheduling according to the demodulation result and the second measurement result.
2. The base station according to claim 1, wherein the interference detection unit (101) is further configured to: when the result of whether the atmospheric guided wave interference exists is that the atmospheric guided wave interference exists, if the current detection is the first detection or the previous detection result is that the atmospheric guided wave interference does not exist, setting the detection result as that the atmospheric guided wave interference exists, and continuously outputting the result of whether the atmospheric guided wave interference exists to the demodulation unit (102) and the scheduling unit (103);
when the result of whether the atmospheric guided wave interference exists is that the atmospheric guided wave interference does not exist, if the current detection is the first detection or the previous detection result is that the atmospheric guided wave interference does not exist, setting the detection result to be that the atmospheric guided wave interference does not exist, and continuously outputting the result of whether the atmospheric guided wave interference exists to the demodulation unit (102) and the scheduling unit (103); and if the previous detection result is that the atmospheric waveguide interference exists, updating the detection result to be that the atmospheric waveguide interference does not exist, and continuously outputting the result of whether the atmospheric waveguide interference exists to the demodulation unit (102) and the scheduling unit (103).
3. The base station according to claim 1 or 2, characterized in that the demodulation unit (102) is preset with corresponding relations between different demodulation strategies and whether the atmosphere guided wave interference exists; the demodulation unit (102) is specifically configured to:
if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference exists, adopting an anti-interference demodulation strategy corresponding to the atmospheric guided wave interference to demodulate; and if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, adopting a non-interference demodulation strategy corresponding to the absence of the atmospheric guided wave interference to demodulate.
4. The base station according to claim 1 or 2, characterized in that the scheduling unit (103) is preset with a corresponding relationship between different scheduling strategies and whether there is atmospheric guided wave interference; the scheduling unit (103) is specifically configured to:
if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference exists, adopting an anti-interference scheduling strategy corresponding to the atmospheric guided wave interference to perform scheduling processing; and if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, adopting an interference-free scheduling strategy corresponding to the absence of the atmospheric guided wave interference to perform scheduling processing.
5. The base station according to claim 1, further comprising a measurement reporting adaptation unit (104) configured to:
when the received result of whether the atmospheric waveguide interference exists or not from the interference detection unit (101) shows that the atmospheric waveguide interference exists, the second measurement result from the measurement unit (100) is subjected to adaptive processing and then output to the scheduling unit (103); and when the received result of whether the atmospheric waveguide interference exists or not from the interference detection unit (101) shows that the atmospheric waveguide interference does not exist, transmitting a second measurement result from the measurement unit (100) to the scheduling unit (103).
6. The base station according to claim 1 or 5, further comprising a configuration parameter adaptation unit (106) configured to:
when the received result of whether the atmospheric waveguide interference exists or not from the interference detection unit (101) shows that the atmospheric waveguide interference exists, outputting an anti-interference configuration parameter set corresponding to the atmospheric waveguide interference to the scheduling unit (103); and when the received result of whether the atmospheric waveguide interference exists or not from the interference detection unit (101) shows that the atmospheric waveguide interference does not exist, outputting the interference-free configuration parameter set corresponding to the absence of the atmospheric waveguide interference to the scheduling unit (103).
7. The base station according to claim 1 or 5, further comprising an interference level determination unit (105) configured to:
receiving a first measurement result from the measurement unit (100) and a result of whether atmospheric waveguide interference exists from the interference detection unit (101), determining an interference level of the atmospheric waveguide interference according to a preset corresponding relationship between different first measurement results and the interference levels of the atmospheric waveguides, and outputting the determined interference level to the demodulation unit (102); accordingly, the number of the first and second electrodes,
the demodulation unit (102) also presets corresponding relations between different demodulation strategies and different interference levels, and the demodulation unit (102) is further configured to: according to the interference level from the interference level determining unit (105), a corresponding anti-interference demodulation strategy is determined.
8. The base station according to claim 7, further comprising a configuration parameter adaptation unit (106);
the interference level determination unit (105) is further configured to output the interference level to a configuration parameter adaptation unit (106);
the configuration parameter adaptation unit (106) is specifically configured to: and outputting different configuration parameter sets corresponding to different preset interference levels to the scheduling unit (103) according to the received interference levels.
9. A method for a base station to perform signal processing, comprising: measuring atmospheric waveguide detection parameters and physical layer conventional parameters;
processing the obtained atmospheric waveguide detection parameters, and judging whether atmospheric waveguide interference exists or not by combining a preset parameter threshold value of an atmospheric waveguide interference detection model;
determining a corresponding demodulation strategy and demodulating an uplink transmission signal according to the obtained result of whether the atmospheric guided wave interference exists or not;
and determining a corresponding scheduling strategy according to the obtained result of whether the atmospheric waveguide interference exists or not, and scheduling according to the demodulation result and the result of measuring the conventional parameters of the physical layer.
10. The method of claim 9, wherein the measurement of the atmospheric waveguide detection parameter is a timed or real-time measurement.
11. The method of claim 9, wherein if it is determined that atmospheric waveguide interference is present, the method further comprises:
if the current detection is the first detection or the previous detection result is that no atmospheric waveguide interference exists, setting the detection result as the atmospheric waveguide interference exists; if the previous detection result indicates that the atmospheric waveguide interference exists, the process is ended;
if the atmospheric waveguide interference does not exist, the method further comprises the following steps:
if the current detection is the first detection or the previous detection result is that no atmospheric waveguide interference exists, setting the detection result as that no atmospheric waveguide interference exists; and if the previous detection result is that the atmospheric waveguide interference exists, updating the detection result to be that the atmospheric waveguide interference does not exist.
12. The method of claim 9, further comprising, prior to the method: setting corresponding relations between different demodulation strategies and whether the atmospheric guided wave interference exists or not;
the determining and demodulating the corresponding demodulation strategy comprises:
if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference exists, demodulating according to an anti-interference demodulation strategy corresponding to the atmospheric guided wave interference; and if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, demodulating according to a non-interference demodulation strategy corresponding to the absence of the atmospheric guided wave interference.
13. The method of claim 9, further comprising, prior to the method: setting corresponding relations between different scheduling strategies and whether the atmospheric guided wave interference exists or not;
the determining the corresponding scheduling policy and scheduling according to the demodulation result includes:
if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference exists, adopting an anti-interference scheduling strategy corresponding to the atmospheric guided wave interference to perform scheduling processing; and if the obtained result of whether the atmospheric guided wave interference exists shows that the atmospheric guided wave interference does not exist, adopting an interference-free scheduling strategy corresponding to the absence of the atmospheric guided wave interference to perform scheduling processing.
14. The method of claim 13, wherein the interference rejection scheduling policy comprises: fast power control; or fast adaptive modulation and coding AMC; or during access and switching, intelligent processing is adopted; or adaptive resource allocation mechanisms for different traffic types; or an adaptive downlink transmission mechanism.
15. The method of claim 9, wherein before determining the corresponding scheduling policy and scheduling according to the demodulation result and the measurement result of the physical layer normal parameter, the method further comprises:
and when the result of whether the atmospheric waveguide interference exists shows that the atmospheric waveguide interference exists, carrying out self-adaptive processing on the obtained physical layer conventional parameters.
16. The method according to claim 9 or 15, wherein after determining whether the atmospheric waveguide interference exists, before determining the corresponding scheduling policy and performing scheduling according to the demodulation result, the method further comprises:
if the result of whether the atmospheric waveguide interference exists indicates that the atmospheric waveguide interference exists, acquiring an anti-interference configuration parameter set corresponding to the atmospheric waveguide interference; if the result of whether the atmospheric waveguide interference exists shows that the atmospheric waveguide interference does not exist, acquiring an interference-free configuration parameter set corresponding to the absence of the atmospheric waveguide interference; accordingly, the number of the first and second electrodes,
the determining the corresponding scheduling policy and scheduling according to the demodulation result and the result of measuring the physical layer conventional parameter includes: and determining a corresponding scheduling strategy according to the obtained result of whether the atmospheric waveguide interference exists or not, and scheduling the demodulated result according to the obtained anti-interference configuration parameter set or the obtained non-interference configuration parameter set.
17. The method of claim 9, wherein after determining whether the atmospheric waveguide interference exists, and before determining the corresponding scheduling policy and performing scheduling according to the demodulation result, the method further comprises:
determining the interference level of atmospheric waveguide interference according to the obtained atmospheric waveguide detection parameters, the result of whether the atmospheric waveguide interference exists or not and the preset corresponding relationship between different atmospheric waveguide detection parameters and the interference levels of the atmospheric waveguides; accordingly, the number of the first and second electrodes,
the determining and demodulating the corresponding demodulation strategy comprises:
and determining a corresponding anti-interference demodulation strategy for demodulation according to the preset corresponding relation between different demodulation strategies and different interference grades and the obtained interference grade.
18. The method of claim 17, wherein when obtaining the interference-free or interference-free configuration parameter set, further comprising: and acquiring different configuration parameter sets corresponding to different preset interference levels according to the obtained interference levels.
19. The method of claim 9, wherein when the base station is in a closed-loop power control mode of a Physical Uplink Control Channel (PUCCH), and when it is determined that the atmospheric waveguide interference exists, the scheduling policy is: and starting rapid processing of PUCCH closed-loop power control.
20. The method of claim 19, wherein the initiating fast processing of PUCCH closed loop power control comprises: fast up and slow down, or increase the target received power.
21. The method of claim 9, wherein when the base station processes according to the traffic type and determines that the air waveguide interference exists, the scheduling policy is:
for discrete services, resource allocation is carried out within a power limited range; aiming at continuous service, the method is not limited by a power limited range and is used in an over-range mode.
22. The method of claim 9, wherein when the base station is in a PUSCH closed-loop power control processing mode, and when it is determined that the atmospheric waveguide interference exists, the scheduling policy is: and starting the quick processing of the closed-loop power control of the PUSCH.
23. The method of claim 9, wherein when the base station is in the uplink adaptive modulation and coding AMC processing mode and it is determined that there is atmospheric waveguide interference, the scheduling policy is: and starting adaptive uplink AMC processing.
24. The method of claim 9, wherein when the base station is in access or handover and it is determined that the air waveguide interference exists, the scheduling policy is:
in the access/switching stage, when interference rises, the power is quickly raised, and when the power is limited, the MCS level is reduced; and/or the presence of a gas in the gas,
and in the access/switching stage, when the interference rises, selecting a corresponding configuration parameter set according to the interference level.
25. The method of claim 9, wherein when the base station is in a transmission mode and it is determined that the air waveguide interference exists, the scheduling policy is: when using TM8 transmissions, a TM3 technique is adopted that is not strongly correlated with upstream measurements.
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108111248B (en) * 2017-12-29 2019-06-18 广州市贝讯通信技术有限公司 A kind of atmospheric duct interference optimization method and system
CN110809278B (en) * 2018-08-06 2021-10-22 中国移动通信有限公司研究院 Signal transmission method and device
CN110958613B (en) * 2018-09-26 2022-09-20 中国电信股份有限公司 Atmospheric waveguide interference processing method, device, base station and communication system
CN110536285B (en) 2018-09-26 2022-09-20 中兴通讯股份有限公司 Interference control method, message sending method, message forwarding method, device, communication equipment and system
CN110971334A (en) 2018-09-28 2020-04-07 中兴通讯股份有限公司 Method and apparatus for processing interference, storage medium, and electronic apparatus
CN110971312B (en) * 2018-09-30 2021-08-17 中国电信股份有限公司 Method and device for processing interference between base stations caused by atmospheric waveguide
KR102651719B1 (en) 2019-05-07 2024-03-28 삼성전자주식회사 Apparatus and method for managing interference in wireless communication system
CN110557772B (en) * 2019-08-22 2021-08-17 西安电子科技大学 Wireless communication interference prediction method for atmospheric waveguide
CN114629577A (en) * 2020-12-10 2022-06-14 中国科学院上海高等研究院 Channel prediction method and system under atmospheric waveguide, storage medium and terminal
CN115580371A (en) * 2021-06-21 2023-01-06 中兴通讯股份有限公司 Interference processing method, device and computer readable storage medium
CN117793785A (en) * 2022-09-19 2024-03-29 中兴通讯股份有限公司 Interference processing method, device, electronic equipment and computer readable storage medium

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6304760B1 (en) * 1999-06-11 2001-10-16 Lucent Technologies, Inc. Method for reducing the effect of atmospheric ducting on wireless transmissions
JP4001504B2 (en) * 2002-04-18 2007-10-31 松下電器産業株式会社 Wireless device
US8519886B2 (en) * 2007-12-13 2013-08-27 The Government Of The United States Of America, As Represented By The Secretary Of The Navy System and method for using GPS interferometry to determine atmospheric conditions
US9729260B2 (en) * 2011-02-24 2017-08-08 Telefonaktiebolaget Lm Ericsson (Publ) Reducing interference caused by an atmospheric duct in a mobile communication system
WO2012135978A1 (en) * 2011-04-08 2012-10-11 Telefonaktiebolaget L M Ericsson (Publ) Reducing interference caused by an atmospheric duct in a wireless communication system
US8958319B2 (en) * 2011-04-29 2015-02-17 Telefonaktiebolaget L M Ericsson (Publ) Decentralized control of interference reduction in a wireless communication system
CN102595471B (en) * 2012-01-10 2015-05-06 电信科学技术研究院 Method for determining remote interference distance and equipment
CN103686752A (en) * 2012-09-05 2014-03-26 华为技术有限公司 Method and device for eliminating interference signals
EP2717481B1 (en) * 2012-10-05 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. System and Method for determining an interferer transmitting an interfering signal

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