CN113676925A - Signal processing method, terminal and storage medium - Google Patents
Signal processing method, terminal and storage medium Download PDFInfo
- Publication number
- CN113676925A CN113676925A CN202010412310.XA CN202010412310A CN113676925A CN 113676925 A CN113676925 A CN 113676925A CN 202010412310 A CN202010412310 A CN 202010412310A CN 113676925 A CN113676925 A CN 113676925A
- Authority
- CN
- China
- Prior art keywords
- frequency band
- broadband
- pdt
- terminal
- working frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 21
- 238000005259 measurement Methods 0.000 claims description 41
- 230000005540 biological transmission Effects 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 6
- 230000010363 phase shift Effects 0.000 claims description 6
- 230000006870 function Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the application discloses a signal processing method, a terminal and a storage medium, wherein a 340M broadband terminal can receive signals of 336-344M frequency bands and also can receive signals of 351-366M frequency bands of PDT, when the signals of PDT uplink working frequency bands and downlink working frequency bands are received, the signal intensity of the uplink working frequency bands and the downlink working frequency bands based on PDT meets a preset condition, the maximum transmitting power of the 340M broadband terminal is limited, and/or the frequency bands far away from the PDT working frequency bands are preferentially used for transmitting uplink data, so that the interference of the 340M broadband terminal to the PDT terminal is effectively inhibited.
Description
Technical Field
The present application relates to the field of signal processing technologies, and in particular, to a signal processing method, a terminal, and a storage medium.
Background
351-366M is a Public Digital Trunking standard (PDT) narrow-band Digital Trunking private network, is special for Public security and police, and has the characteristics of wide coverage, large area system and low cost; the 336-344M frequency spectrum is dedicated mobile wireless video transmission, wherein the 336-340M frequency band is preferentially used by public security, and the 336-344M frequency band is 340M broadband system (B-PDT) frequency spectrum.
When the PDT terminal is located at the coverage edge of the PDT base station and the 340M broadband terminal is in close distance to the PDT terminal, the adjacent channel leakage signal of the 340M broadband terminal may suppress the downlink signal of the PDT terminal which is relatively weak, so that the PDT terminal may have an impaired voice quality or may not access the PDT network.
At present, in order to solve the above problems, a method used at present is to improve the performance of the rf analog filter of a 340M broadband system, so that the out-of-band rejection performance of the rf analog filter is better, but improving the performance of the rf analog filter will result in a larger device size and higher cost.
Disclosure of Invention
It is an object of the present application to provide a signal processing method, a terminal and a storage medium to overcome the above problems or at least partially solve the above problems.
In order to achieve the purpose, the application provides the following technical scheme:
a signal processing method applied to a 340M broadband terminal, the method comprising:
receiving an uplink working frequency band signal and a downlink working frequency band signal of the digital trunking standard PDT for police;
detecting a first signal intensity of an uplink working frequency band and a second signal intensity of a downlink working frequency band of the PDT;
and if the first signal intensity and the second signal intensity meet preset conditions, limiting the maximum transmitting power of the 340M broadband terminal and/or preferentially using a frequency band far away from the PDT working frequency band to transmit uplink data.
In the above method, preferably, the first signal strength and the second signal strength satisfying a preset condition includes:
the first signal strength is greater than a first threshold and the second signal strength is less than a second threshold.
The method, preferably, the limiting the maximum transmission power of the 340M broadband terminal and/or preferentially using a frequency band far from the PDT operating frequency band for transmitting uplink data includes:
sending a measurement report to a 340M broadband base station, wherein the measurement report carries identification information for identifying that the first signal strength and the second signal strength meet preset conditions;
and receiving control information sent by the 340M broadband base station, and limiting the maximum transmitting power of the 340M broadband terminal and/or preferentially sending uplink data by using a frequency band far away from the PDT working frequency band based on the control information.
In the above method, preferably, the limiting the maximum transmission power of the 340M broadband terminal includes:
and scheduling the 340M broadband terminals according to the 340M broadband base station, wherein the modulation modes of the 340M broadband terminals are different, and the maximum transmitting power of the 340M broadband terminals is different.
Preferably, the 340M broadband base station schedules the modulation method of the 340M broadband terminal, which includes at least the following three types: quadrature phase shift keying QPSK, 16 quadrature amplitude modulation 16QAM and 64 quadrature amplitude modulation 64 QAM;
when the modulation mode is QPSK, the maximum transmitting power of the 340M broadband terminal is greater than the maximum transmitting power of the 340M broadband terminal when the modulation mode is 16 QAM;
when the modulation mode is 16QAM, the maximum transmitting power of the 340M broadband terminal is larger than the maximum transmitting power of the 340M broadband terminal when the modulation mode is 64 QAM.
A signal processing method applied to a 340M broadband base station, the method comprising:
receiving a PDT uplink working frequency band and a signal intensity measurement report of a downlink working frequency band reported by a 340M broadband terminal;
sending control information to the 340M broadband terminal according to the measurement report so as to limit the maximum transmission power of the 340M broadband terminal and/or schedule the 340M broadband terminal to send data by using a frequency band far away from the PDT working frequency band.
In the above method, preferably, the sending control information to the 340M broadband terminal according to the measurement report includes:
analyzing the measurement report, when the signal intensity of the PDT uplink working frequency band is greater than a first threshold value and the signal of the PDT downlink working frequency band is less than a second threshold value, making a decision for adjusting the 340M broadband terminal, and sending corresponding control information to the 340M broadband terminal;
the decision includes limiting a maximum transmit power of the 340M broadband terminal and/or scheduling the 340M broadband terminal to preferentially transmit uplink data using a frequency band remote from a PDT operating frequency band.
A communication system, comprising: 340M broadband terminals and 340M broadband base stations, wherein,
the 340M broadband terminal is used for reporting a PDT uplink working frequency band and a signal intensity measurement report of a downlink working frequency band to the 340M broadband base station;
the 340M broadband base station is used for sending control information to the 340M broadband terminal according to the measurement report so as to limit the maximum transmission power of the 340M broadband terminal and/or schedule the 340M broadband terminal to send data by using a frequency band far away from the PDT working frequency band.
A 340M broadband terminal comprising: radio frequency circuitry, memory and a processor;
the radio frequency circuit is used for receiving and transmitting signals in 336-344M frequency bands and receiving uplink working frequency band signals and downlink working frequency band signals of digital trunking standard PDT for police;
the memory is used for storing programs;
the processor is used for executing the program and realizing the following steps:
detecting a first signal intensity of an uplink working frequency band and a second signal intensity of a downlink working frequency band of the PDT;
and if the first signal intensity and the second signal intensity meet preset conditions, limiting the maximum transmitting power of the 340M broadband terminal and/or preferentially using a frequency band far away from the PDT working frequency band to transmit uplink data.
Preferably, in the terminal, the step of the first signal strength and the step of the second signal strength meeting the preset condition includes:
the first signal strength is greater than a first threshold and the second signal strength is less than a second threshold.
Preferably, when the processor limits the maximum transmission power of the 340M broadband terminal and/or preferentially uses a frequency band far away from the PDT operating frequency band to transmit uplink data, the processor is specifically configured to:
sending a measurement report to a 340M broadband base station, wherein the measurement report carries identification information for identifying that the first signal strength and the second signal strength meet preset conditions;
and receiving control information sent by the 340M broadband base station, and limiting the maximum transmitting power of the 340M broadband terminal and/or preferentially using a frequency band far away from the PDT working frequency band to send uplink data based on the control information.
Preferably, when the processor limits the maximum transmission power of the 340M broadband terminal, the processor is specifically configured to:
and scheduling the 340M broadband terminals according to the 340M broadband base station, wherein the modulation modes of the 340M broadband terminals are different, and the maximum transmitting power of the 340M broadband terminals is different.
Preferably, the modulation method for the 340M broadband terminal scheduled by the 340M broadband base station includes at least the following three types: quadrature phase shift keying QPSK, 16 quadrature amplitude modulation 16QAM and 64 quadrature amplitude modulation 64 QAM;
when the modulation mode is QPSK, the maximum transmitting power of the 340M broadband terminal is greater than the maximum transmitting power of the 340M broadband terminal when the modulation mode is 16 QAM;
when the modulation mode is 16QAM, the maximum transmitting power of the 340M broadband terminal is larger than the maximum transmitting power of the 340M broadband terminal when the modulation mode is 64 QAM.
A readable storage medium, having stored thereon a computer program which, when executed by a processor, carries out the steps of the signal processing method according to any of the preceding claims.
According to the scheme, the 340M broadband terminal can receive signals in 336-344M frequency bands and signals in 351-366M frequency bands of PDT, when the signals in the PDT uplink working frequency bands and the PDT downlink working frequency bands are received, the maximum transmission power of the 340M broadband terminal is limited and/or uplink data is sent by preferentially using the frequency bands far away from the PDT working frequency bands based on the fact that the signal intensity of the uplink working frequency bands and the signal intensity of the downlink working frequency bands of PDT meet the preset condition, and therefore interference of the 340M broadband terminal to the PDT terminal is effectively suppressed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an exemplary diagram of an application scenario of a 340M broadband terminal and a PDT terminal provided in the prior art;
fig. 2 is an exemplary diagram of an application scenario of a 340M broadband terminal and a PDT terminal provided in an embodiment of the present application;
fig. 3 is a flowchart of an implementation of a signal processing method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a 340M broadband terminal according to an embodiment of the present application;
fig. 5 is a flowchart of another implementation of a signal processing method according to an embodiment of the present disclosure.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be practiced otherwise than as specifically illustrated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Fig. 1 is a diagram illustrating an example of an application scenario of a 340M broadband terminal and a PDT terminal in the prior art. In the example, the 340M broadband terminal occupies 336-344M frequency band to send data, and the out-of-band suppression degree of the power amplifier of the 340M broadband terminal at 351MHz is not less than 60 dB. Because the size is limited, the 340M broadband terminal cannot apply an analog filter with higher out-of-band rejection, when the PDT terminal is located at the coverage edge of the PDT base station and the 340M broadband terminal is in close proximity to the PDT terminal, the adjacent channel leakage signal of the 340M broadband terminal may suppress the downlink signal of the PDT terminal which is relatively weak, so that the PDT terminal voice quality is damaged or the PDT network cannot be accessed.
Based on the above problems, the basic idea of the scheme provided by the application is as follows: the method comprises the steps that whether a PDT terminal exists nearby or not and whether the PDT terminal is located at the edge position covered by a PDT base station or not is monitored by a 340M broadband terminal, if the PDT terminal exists nearby the 340M broadband terminal and is located at the edge position covered by the PDT base station, the maximum transmitting power of the PDT terminal is limited, and/or uplink data are sent to the 340M broadband base station by preferentially using a frequency band far away from the PDT working frequency band, so that the interference of the 340M broadband terminal to the PDT terminal is restrained.
Based on the foregoing basic idea, please refer to fig. 2 and fig. 3, fig. 2 is an exemplary diagram of an application scenario of a 340M broadband terminal and a PDT terminal provided in an embodiment of the present application, fig. 3 is a flowchart of an implementation of a signal processing method provided in an embodiment of the present application, where the signal processing method provided in an embodiment of the present application is applied to the 340M broadband terminal, and specifically includes:
step S31: and receiving an uplink working frequency band signal and a downlink working frequency band signal of the digital trunking standard PDT for police.
In the embodiment of the application, the 340M broadband terminal can receive and transmit signals of 336-344M frequency bands and can also receive signals of 351-366M frequency bands of PDT.
When the 340M broadband terminal is located in the signal coverage area of the PDT base station and a PDT terminal is located near the 340M broadband terminal, the 340M broadband terminal can receive an uplink working frequency band signal (namely, a signal sent by the PDT terminal to the PDT base station) and a downlink working frequency band signal (namely, a signal sent by the PDT base station to the PDT terminal) of the police digital trunking standard PDT.
Step S32: the signal strength of the PDT in the upstream operating band (for convenience of description, referred to as a first signal strength) and the signal strength of the PDT in the downstream operating band (for convenience of description, referred to as a second signal strength) are detected.
Step S33: and if the first signal intensity and the second signal intensity meet the preset conditions, limiting the maximum transmitting power of the 340M broadband terminal and/or preferentially using the frequency band far away from the PDT working frequency band to transmit uplink data.
In this embodiment, the signal strength of the PDT uplink and downlink operating frequency bands received and detected by the 340M broadband terminal may be periodic or event-triggered, which does not affect the implementation of the technical solution of the present invention, and therefore is not limited herein.
If the first signal intensity and the second signal intensity satisfy the preset condition, it is indicated that there is a PDT terminal near the 340M broadband terminal, and the PDT terminal is located at an edge position of a signal coverage area of the PDT base station, at this time, the maximum transmission power of the 340M broadband terminal may be limited, or the 340M broadband terminal preferentially uses a frequency band far away from the PDT operating frequency band to transmit uplink data to the 340M broadband base station, or the maximum transmission power of the 340M broadband terminal is limited and preferentially uses a frequency band far away from the PDT operating frequency band to transmit uplink data to the 340M broadband base station.
The limitation of the maximum transmission power of the 340M broadband terminal means that the maximum transmission power of the 340M broadband terminal is limited not to exceed a power threshold, and the power threshold is a maximum value which can ensure that no image is caused on the communication quality of the PDT terminal. The power threshold may be obtained by laboratory simulation or by external field measurement.
The preferential use of the frequency band far away from the PDT operating frequency band for transmitting the uplink data means that, in the available frequency band of the 336-344M frequency band, the frequency band near 336M is preferentially selected for transmitting the uplink data, so that the isolation between the actual operating frequency band of the 340M broadband terminal and the PDT operating frequency band is as large as possible.
Optionally, a specific implementation manner of limiting the maximum transmission power of the 340M broadband terminal and/or preferentially using a frequency band far from the PDT operating frequency band to transmit uplink data may be:
the 340M broadband terminal determines the maximum transmission power (for convenience of description, it is recorded as a target maximum transmission power) and/or the working frequency band preferentially used (for convenience of description, it is recorded as a target working frequency band), and then sends a resource application to the 340M broadband base station, where the resource application carries the target maximum transmission power and the target working frequency band, and if the 340M broadband base station feeds back determination information after receiving the resource application, the maximum transmission power and/or the working frequency band preferentially used of the 340M broadband terminal is adjusted to the target maximum transmission power and/or the target working frequency band. If the 340M broadband base station feeds back not the determination information but the scheduling indication after receiving the resource application, the maximum transmission power and/or the preferentially used operating frequency band of the 340M broadband terminal are/is adjusted to the maximum transmission power and/or the operating frequency band indicated by the scheduling indication.
According to the signal processing method, the 340M broadband terminal can receive signals of 336-344M frequency bands and also can receive signals of 351-366M frequency bands of PDT, when signals of PDT uplink working frequency bands and downlink working frequency bands are received, the maximum transmitting power of the 340M broadband terminal is limited and/or uplink data are sent by preferentially using the frequency bands far away from the PDT working frequency bands based on the fact that the signal intensity of the PDT uplink working frequency bands and the signal intensity of the PDT downlink working frequency bands meet preset conditions, and therefore interference of the 340M broadband terminal on the PDT terminal is effectively restrained. Based on the scheme, the 340M broadband terminal is improved in hardware so that the 340M broadband terminal can receive signals of 351-366M frequency bands of PDT, the improvement can be achieved by increasing the filtering passband of the signal receiving side, and the implementation mode can hardly increase the size of the 340M broadband terminal.
In an alternative embodiment, the step of the first signal strength and the second signal strength satisfying the preset condition may include:
the first signal strength is greater than a first threshold and the second signal strength is less than a second threshold. Typically, the second threshold is less than the first threshold.
The first signal intensity is greater than a first threshold value, indicating that a PDT terminal is near the 340M broadband terminal, and the second signal intensity is less than a second threshold value, indicating that the PDT terminal is at the edge position of the signal coverage area of the PDT base station.
In an alternative embodiment, one way to limit the maximum transmission power of the 340M broadband terminal and/or preferentially transmit uplink data using a frequency band far away from the PDT operating frequency band may be:
and sending a measurement report to the 340M broadband base station, wherein the measurement report carries identification information, and the identification information is used for identifying that the first signal strength and the second signal strength meet preset conditions.
Control information sent by the 340M broadband base station is received, and the maximum transmitting power of the 340M broadband terminal is limited and/or uplink data is sent by preferentially using a frequency band far away from the PDT working frequency band based on the control information.
That is, the maximum transmit power and operating band of the 340M broadband terminal is indicated by the 340M broadband base station schedule.
Alternatively, the 340M broadband terminal may transmit the measurement report to the 340M broadband base station only when the first signal strength and the second signal strength satisfy a preset condition.
Or,
whether the first signal strength and the second signal strength meet preset conditions or not is judged, a measurement report is periodically sent to the 340M broadband base station, and at the moment, identification information in the measurement report is used for identifying whether the first signal strength and the second signal strength meet the preset conditions or not; specifically, when the first signal strength and the second signal strength satisfy the preset condition, the identification information in the measurement report is used for identifying that the first signal strength and the second signal strength satisfy the preset condition; when the first signal strength and the second signal strength do not meet the preset condition, the identification information in the measurement report is used for identifying that the first signal strength and the second signal strength do not meet the preset condition.
Accordingly, the 340M broadband base station sends control information to the 340M broadband terminal only when the first signal strength and the second signal strength satisfy the preset condition, so as to limit the maximum transmission power of the 340M broadband terminal and/or preferentially send uplink data using a frequency band far away from the PDT operating frequency band. If the first signal strength and the second signal strength do not satisfy the preset condition, the 340M broadband base station does not send control information to the 340M broadband terminal, that is, the maximum transmission power of the 340M broadband terminal is not limited and/or uplink data is preferentially sent using a frequency band far away from the PDT operating frequency band.
In an optional embodiment, when the maximum transmit power of the 340M broadband terminal is limited, the maximum transmit power of the 340M broadband terminal is different according to different modulation modes of the 340M broadband terminal scheduled by the 340M broadband base station.
Optionally, the modulation method for scheduling 340M broadband terminals by the 340M broadband base station may include at least the following three types: quadrature phase shift keying QPSK, 16 quadrature amplitude modulation 16QAM and 64 quadrature amplitude modulation 64 QAM; wherein,
the maximum transmitting power of the 340M broadband terminal when the modulation mode is QPSK is larger than the maximum transmitting power of the 340M broadband terminal when the modulation mode is 16 QAM; optionally, the maximum transmission power of the 340M wideband terminal when the modulation scheme is QPSK is 1db greater than the maximum transmission power of the 340M wideband terminal when the modulation scheme is 16 QAM.
The maximum transmitting power of the 340M broadband terminal when the modulation mode is 16QAM is larger than the maximum transmitting power of the 340M broadband terminal when the modulation mode is 64 QAM; optionally, the maximum transmission power of the 340M broadband terminal when the modulation scheme is 16QAM is 1.5db greater than the maximum transmission power of the 340M broadband terminal when the modulation scheme is 64 QAM.
Corresponding to the method embodiment, the present application further provides a 340M broadband terminal, and a schematic structural diagram of the 340M broadband terminal provided by the present application is shown in fig. 4, and may include:
radio frequency circuit 41, memory 42, processor 43, and communication interface 44; wherein,
the processor 43, the communication interface 44, the memory 42 and the radio frequency circuit 41 complete mutual communication through a communication bus;
alternatively, the communication interface 44 may be an interface of a communication module, such as an interface of a GSM module;
the processor 43 may be a central processing unit CPU or an application Specific Integrated circuit asic or one or more Integrated circuits configured to implement embodiments of the present application.
The radio frequency circuit 41 is used for receiving and transmitting signals in 336-344M frequency bands and receiving uplink working frequency band signals and downlink working frequency band signals of digital trunking standard PDT for police;
a memory 42 for storing programs; may include high-speed RAM memory, and may also include non-volatile memory (e.g., at least one disk memory).
A processor 43 for executing the program stored in the memory 42, and implementing the following steps:
detecting a first signal intensity of an uplink working frequency band and a second signal intensity of a downlink working frequency band of the PDT;
and if the first signal intensity and the second signal intensity meet preset conditions, limiting the maximum transmitting power of the 340M broadband terminal and/or preferentially using a frequency band far away from the PDT working frequency band to transmit uplink data.
The 340M broadband terminal can receive signals of 336-344M frequency bands and signals of 351-366M frequency bands of PDT, when the signals of PDT uplink working frequency bands and downlink working frequency bands are received, the signal intensity of the PDT uplink working frequency bands and the signal intensity of the PDT downlink working frequency bands meet preset conditions, the maximum transmitting power of the 340M broadband terminal is limited, and/or uplink data are sent by preferentially using the frequency bands far away from the PDT working frequency bands, so that the interference of the 340M broadband terminal to the PDT terminal is effectively inhibited.
In an optional embodiment, the first signal strength and the second signal strength satisfying the preset condition include:
the first signal strength is greater than a first threshold and the second signal strength is less than a second threshold.
In an optional embodiment, when the processor 43 limits the maximum transmission power of the 340M broadband terminal and/or preferentially uses a frequency band far away from the PDT operating frequency band to transmit uplink data, it is specifically configured to:
sending a measurement report to a 340M broadband base station, wherein the measurement report carries identification information for identifying that the first signal strength and the second signal strength meet preset conditions;
and receiving control information sent by the 340M broadband base station, and limiting the maximum transmitting power of the 340M broadband terminal and/or preferentially using a frequency band far away from the PDT working frequency band to send uplink data based on the control information.
Alternatively, the processor 43 may transmit the measurement report to the 340M broadband base station only when the first signal strength and the second signal strength satisfy a preset condition.
Or,
the processor 43 may periodically send a measurement report to the 340M broadband base station regardless of whether the first signal strength and the second signal strength satisfy the preset condition, where identification information in the measurement report is used to identify whether the first signal strength and the second signal strength satisfy the preset condition. Accordingly, the 340M broadband base station sends control information to the 340M broadband terminal only when the first signal strength and the second signal strength satisfy the preset condition, so as to limit the maximum transmission power of the 340M broadband terminal and/or preferentially send uplink data using a frequency band far away from the PDT operating frequency band.
In an optional embodiment, when the processor 43 limits the maximum transmission power of the 340M broadband terminal, it is specifically configured to:
and scheduling the 340M broadband terminals according to the 340M broadband base station, wherein the modulation modes of the 340M broadband terminals are different, and the maximum transmitting power of the 340M broadband terminals is different.
In an optional embodiment, the modulation method for scheduling the 340M broadband terminal by the 340M broadband base station at least includes the following three types: quadrature phase shift keying QPSK, 16 quadrature amplitude modulation 16QAM and 64 quadrature amplitude modulation 64 QAM;
when the modulation mode is QPSK, the maximum transmitting power of the 340M broadband terminal is greater than the maximum transmitting power of the 340M broadband terminal when the modulation mode is 16 QAM;
when the modulation mode is 16QAM, the maximum transmitting power of the 340M broadband terminal is larger than the maximum transmitting power of the 340M broadband terminal when the modulation mode is 64 QAM.
Based on the same technical idea as the foregoing signal processing method, an embodiment of the present application provides another signal processing method, where the signal processing method is applied to a 340M broadband base station, and an implementation flowchart of the signal processing method is shown in fig. 5, and may include:
step S51: and receiving signal intensity measurement reports of PDT uplink working frequency band and downlink working frequency band reported by a 340M broadband terminal.
The measurement report may be sent to the 340M broadband base station after the 340M broadband terminal receives an uplink working frequency band signal and a downlink working frequency band signal of the PDT, detects a first signal intensity of the uplink working frequency band and a second signal intensity of the downlink working frequency band of the PDT, and determines whether the first signal intensity and the second signal intensity satisfy a preset condition.
Step S52: and sending control information to the 340M broadband terminal according to the measurement report so as to limit the maximum transmitting power of the 340M broadband terminal and/or schedule the 340M broadband terminal to use a frequency band far away from the PDT working frequency band for transmitting data.
The 340M broadband base station may send control information to the 340M broadband terminal to limit the maximum transmission power of the 340M broadband terminal and/or schedule the 340M broadband terminal to send data using a frequency band far away from the PDT operating frequency band when the measurement report identifies that the first signal strength and the second signal strength satisfy a preset condition.
According to the signal processing method provided by the embodiment of the application, the maximum transmitting power of the 340M broadband terminal is limited and/or the 340M broadband terminal is scheduled to transmit data by using a frequency band far away from the PDT working frequency band according to the signal intensity of the PDT uplink working frequency band and the PDT downlink working frequency band reported by the 340M broadband terminal, so that the interference of the 340M broadband terminal to the PDT terminal is effectively inhibited.
In an optional embodiment, one implementation manner of sending the control information to the 340M broadband terminal according to the measurement report may be that:
analyzing the measurement report, when the signal intensity of the PDT uplink working frequency band is greater than a first threshold value and the signal of the PDT downlink working frequency band is less than a second threshold value, making a decision for adjusting the 340M broadband terminal, and sending corresponding control information to the 340M broadband terminal;
the decision may include limiting the maximum transmit power of the 340M broadband terminal and/or scheduling the 340M broadband terminal to transmit uplink data preferentially using a frequency band that is remote from the PDT operating frequency band.
In an optional embodiment, when limiting the maximum transmission power of the 340M broadband terminal, the method is specifically configured to:
and scheduling the 340M broadband terminals according to the 340M broadband base station according to different modulation modes, wherein the maximum transmitting power of the 340M broadband terminals is different.
In an optional embodiment, the modulation schemes for scheduling 340M broadband terminals by the 340M broadband base station at least include the following three types: quadrature phase shift keying QPSK, 16 quadrature amplitude modulation 16QAM and 64 quadrature amplitude modulation 64 QAM;
the maximum transmitting power of the 340M broadband terminal when the modulation mode is QPSK is larger than the maximum transmitting power of the 340M broadband terminal when the modulation mode is 16 QAM;
the maximum transmission power of the 340M broadband terminal when the modulation mode is 16QAM is larger than the maximum transmission power of the 340M broadband terminal when the modulation mode is 64 QAM.
An embodiment of the present application further provides a communication system, where the communication system may include: 340M broadband terminals and 340M broadband base stations, wherein,
the 340M broadband terminal is used for reporting a PDT uplink working frequency band and a signal intensity measurement report of a downlink working frequency band to the 340M broadband base station. The specific implementation manner can refer to the foregoing embodiments, and details are not repeated here.
The 340M broadband base station is used for sending control information to the 340M broadband terminal according to the measurement report so as to limit the maximum transmitting power of the 340M broadband terminal and/or schedule the 340M broadband terminal to send data by using a frequency band far away from the PDT working frequency band. The specific implementation manner can refer to the foregoing embodiments, and details are not repeated here.
An embodiment of the present application further provides a readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the following functions are implemented:
receiving an uplink working frequency band signal and a downlink working frequency band signal of the digital trunking standard PDT for police; the uplink working frequency band signal and the downlink working frequency band signal of the PDT can be received through a radio frequency circuit of the 340M broadband terminal.
Detecting a first signal intensity of an uplink working frequency band and a second signal intensity of a downlink working frequency band of the PDT;
and if the first signal intensity and the second signal intensity meet preset conditions, limiting the maximum transmitting power of the 340M broadband terminal and/or preferentially using a frequency band far away from the PDT working frequency band to transmit uplink data.
Alternatively, the detailed function and the extended function of the program may be as described above.
Embodiments of the present application further provide another readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following functions:
and receiving signal intensity measurement reports of PDT uplink working frequency band and downlink working frequency band reported by a 340M broadband terminal.
And sending control information to the 340M broadband terminal according to the measurement report so as to limit the maximum transmitting power of the 340M broadband terminal and/or schedule the 340M broadband terminal to use a frequency band far away from the PDT working frequency band for transmitting data.
Alternatively, the detailed function and the extended function of the program may be as described above.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
It should be understood that the technical problems can be solved by combining and combining the features of the embodiments from the claims.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A signal processing method applied to a 340M broadband terminal, the method comprising:
receiving an uplink working frequency band signal and a downlink working frequency band signal of the digital trunking standard PDT for police;
detecting a first signal intensity of an uplink working frequency band and a second signal intensity of a downlink working frequency band of the PDT;
and if the first signal intensity and the second signal intensity meet preset conditions, limiting the maximum transmitting power of the 340M broadband terminal and/or preferentially using a frequency band far away from the PDT working frequency band to transmit uplink data.
2. The method of claim 1, wherein the first signal strength and the second signal strength satisfying a preset condition comprises:
the first signal strength is greater than a first threshold and the second signal strength is less than a second threshold.
3. The method as claimed in claim 1, wherein said limiting the maximum transmit power of said 340M broadband terminal and/or prioritizing the transmission of uplink data using a frequency band remote from the PDT operating frequency band comprises:
sending a measurement report to a 340M broadband base station, wherein the measurement report carries identification information for identifying that the first signal strength and the second signal strength meet preset conditions;
and receiving control information sent by the 340M broadband base station, and limiting the maximum transmitting power of the 340M broadband terminal and/or preferentially sending uplink data by using a frequency band far away from the PDT working frequency band based on the control information.
4. The method of claim 1, wherein the limiting the maximum transmit power of the 340M wideband terminal comprises:
and scheduling the 340M broadband terminals according to the 340M broadband base station, wherein the modulation modes of the 340M broadband terminals are different, and the maximum transmitting power of the 340M broadband terminals is different.
5. The method of claim 4, wherein the 340M broadband base station schedules the modulation schemes of the 340M broadband terminal at least include the following three types: quadrature phase shift keying QPSK, 16 quadrature amplitude modulation 16QAM and 64 quadrature amplitude modulation 64 QAM;
when the modulation mode is QPSK, the maximum transmitting power of the 340M broadband terminal is greater than the maximum transmitting power of the 340M broadband terminal when the modulation mode is 16 QAM;
when the modulation mode is 16QAM, the maximum transmitting power of the 340M broadband terminal is larger than the maximum transmitting power of the 340M broadband terminal when the modulation mode is 64 QAM.
6. A signal processing method applied to a 340M broadband base station, the method comprising:
receiving a PDT uplink working frequency band and a signal intensity measurement report of a downlink working frequency band reported by a 340M broadband terminal;
sending control information to the 340M broadband terminal according to the measurement report so as to limit the maximum transmission power of the 340M broadband terminal and/or schedule the 340M broadband terminal to send data by using a frequency band far away from the PDT working frequency band.
7. The method of claim 6, wherein the sending control information to the 340M broadband terminal according to the measurement report comprises:
analyzing the measurement report, when the signal intensity of the PDT uplink working frequency band is greater than a first threshold value and the signal of the PDT downlink working frequency band is less than a second threshold value, making a decision for adjusting the 340M broadband terminal, and sending corresponding control information to the 340M broadband terminal;
the decision includes limiting a maximum transmit power of the 340M broadband terminal and/or scheduling the 340M broadband terminal to preferentially transmit uplink data using a frequency band remote from a PDT operating frequency band.
8. A communication system, comprising: 340M broadband terminals and 340M broadband base stations, wherein,
the 340M broadband terminal is used for reporting a PDT uplink working frequency band and a signal intensity measurement report of a downlink working frequency band to the 340M broadband base station;
the 340M broadband base station is used for sending control information to the 340M broadband terminal according to the measurement report so as to limit the maximum transmission power of the 340M broadband terminal and/or schedule the 340M broadband terminal to send data by using a frequency band far away from the PDT working frequency band.
9. A 340M broadband terminal, comprising: radio frequency circuitry, memory and a processor;
the radio frequency circuit is used for receiving and transmitting signals in 336-344M frequency bands and receiving uplink working frequency band signals and downlink working frequency band signals of digital trunking standard PDT for police;
the memory is used for storing programs;
the processor is used for executing the program and realizing the following steps:
detecting a first signal intensity of an uplink working frequency band and a second signal intensity of a downlink working frequency band of the PDT;
and if the first signal intensity and the second signal intensity meet preset conditions, limiting the maximum transmitting power of the 340M broadband terminal and/or preferentially using a frequency band far away from the PDT working frequency band to transmit uplink data.
10. A readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the signal processing method according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010412310.XA CN113676925A (en) | 2020-05-15 | 2020-05-15 | Signal processing method, terminal and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010412310.XA CN113676925A (en) | 2020-05-15 | 2020-05-15 | Signal processing method, terminal and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113676925A true CN113676925A (en) | 2021-11-19 |
Family
ID=78537630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010412310.XA Pending CN113676925A (en) | 2020-05-15 | 2020-05-15 | Signal processing method, terminal and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113676925A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236518A1 (en) * | 2022-06-06 | 2023-12-14 | Oppo广东移动通信有限公司 | Communication method, terminal, and storage medium |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9801028D0 (en) * | 1997-03-31 | 1998-03-26 | Radio Frequency Systems Inc | Continuous assessment and elimination of interference in a mobile land radio system |
| KR19990055248A (en) * | 1997-12-27 | 1999-07-15 | 서정욱 | Time-adaptive power control signal generator and its method |
| WO2001097430A2 (en) * | 2000-06-13 | 2001-12-20 | Mchenry Mark A | System/method for reuse of communications spectrum that mitigate interference in fixed/mobile applications |
| US20060246841A1 (en) * | 2005-04-29 | 2006-11-02 | Dennis Gary J | Method and apparatus for reducing interference associated with wireless communication |
| CN101707779A (en) * | 2009-11-23 | 2010-05-12 | 上海华为技术有限公司 | Resource allocation method, access network equipment and communication system |
| CN102480774A (en) * | 2010-11-29 | 2012-05-30 | 华为技术有限公司 | Method for eliminating system interference, apparatus thereof, and terminal thereof |
| CN102833760A (en) * | 2011-06-15 | 2012-12-19 | 电信科学技术研究院 | Method and equipment for suppressing interference under condition of sharing of frequency spectrum by different systems |
| CN103249128A (en) * | 2012-02-02 | 2013-08-14 | 京信通信系统（中国）有限公司 | Method and device for adaptively adjusting power of FEMTO base station |
| CN107040984A (en) * | 2016-02-04 | 2017-08-11 | 电信科学技术研究院 | A kind of unauthorized frequency range ascending power control method and relevant device |
| CN107592666A (en) * | 2017-08-30 | 2018-01-16 | 广东欧珀移动通信有限公司 | The transmission power increasing method and device of terminal device |
-
2020
- 2020-05-15 CN CN202010412310.XA patent/CN113676925A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9801028D0 (en) * | 1997-03-31 | 1998-03-26 | Radio Frequency Systems Inc | Continuous assessment and elimination of interference in a mobile land radio system |
| KR19990055248A (en) * | 1997-12-27 | 1999-07-15 | 서정욱 | Time-adaptive power control signal generator and its method |
| WO2001097430A2 (en) * | 2000-06-13 | 2001-12-20 | Mchenry Mark A | System/method for reuse of communications spectrum that mitigate interference in fixed/mobile applications |
| US20060246841A1 (en) * | 2005-04-29 | 2006-11-02 | Dennis Gary J | Method and apparatus for reducing interference associated with wireless communication |
| CN101707779A (en) * | 2009-11-23 | 2010-05-12 | 上海华为技术有限公司 | Resource allocation method, access network equipment and communication system |
| CN102480774A (en) * | 2010-11-29 | 2012-05-30 | 华为技术有限公司 | Method for eliminating system interference, apparatus thereof, and terminal thereof |
| CN102833760A (en) * | 2011-06-15 | 2012-12-19 | 电信科学技术研究院 | Method and equipment for suppressing interference under condition of sharing of frequency spectrum by different systems |
| CN103249128A (en) * | 2012-02-02 | 2013-08-14 | 京信通信系统（中国）有限公司 | Method and device for adaptively adjusting power of FEMTO base station |
| CN107040984A (en) * | 2016-02-04 | 2017-08-11 | 电信科学技术研究院 | A kind of unauthorized frequency range ascending power control method and relevant device |
| CN107592666A (en) * | 2017-08-30 | 2018-01-16 | 广东欧珀移动通信有限公司 | The transmission power increasing method and device of terminal device |
Non-Patent Citations (2)
| Title |
|---|
| SUPRATIM DEB: "Learning Based Uplink Interference Management in 4G LTE Cellular Systems", 《ARXIV》, 10 September 2013 (2013-09-10) * |
| 赵艳山: "基于GNU Radio的LTE控制面功能设计与实现", 《中国优秀硕士学位论文全文数据库》, 15 March 2017 (2017-03-15) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236518A1 (en) * | 2022-06-06 | 2023-12-14 | Oppo广东移动通信有限公司 | Communication method, terminal, and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10299150B2 (en) | Systems and methods for LTE and WLAN coexistence | |
| CN108990153B (en) | Transmission method, related equipment and system for terminal self-interference | |
| US11818060B2 (en) | Scheduling data transmissions between a mobile terminal and a base station in a wireless communications network using component carriers | |
| US8750227B2 (en) | Scheduling data transmissions between a mobile terminal and a base station in a wireless communications network | |
| US10091724B2 (en) | Information transmission method and device | |
| US7848221B2 (en) | Method and system for detecting adjacent channel interference from OFDM/OFDMA based broadband wireless access | |
| CN105532049B (en) | For reducing the method and network entity of inter-network interference | |
| JP6390928B2 (en) | Wireless access point having two radio frequency modules in the same frequency band and signal interference reducing method | |
| CN108990154B (en) | Transmission method, related equipment and system for terminal self-interference | |
| CN105230079B (en) | Use the method and apparatus of multiple network signal values | |
| CN108306718B (en) | Carrier aggregation method, system and base station | |
| EP2449804A1 (en) | Apparatus, method, computer program for communication and system thereof | |
| CN101420716A (en) | Method, system and device for uplink interference source detection | |
| CN113676925A (en) | Signal processing method, terminal and storage medium | |
| EP2999251B1 (en) | Communication method and apparatus thereof | |
| CN114900861B (en) | Base station control method, base station and storage medium | |
| CN109275182B (en) | Notification method and device of downlink power distribution parameters | |
| WO2019061335A1 (en) | Channel monitoring method, access-network device, terminal device, and communications system | |
| CN112601276A (en) | Method for solving time slot interference, terminal equipment and base station equipment | |
| CN101466104A (en) | Method, system and device for detecting down interference source | |
| CN117714008B (en) | Rate matching mode switching method, electronic equipment and storage medium | |
| CN113497691B (en) | Data transmission method and device based on wireless communication system | |
| CN108811113B (en) | Method for receiving downlink control channel and user equipment | |
| CN118785444A (en) | Data transmission method and device | |
| WO2024028390A1 (en) | Methods, communications devices and infrastructure equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230524 Address after: 518000 hainengda building, 9108 North Ring Road, north high tech Zone, Nanshan District, Shenzhen City, Guangdong Province Applicant after: HYTERA COMMUNICATIONS Corp.,Ltd. Applicant after: SICHUAN PUBLIC SECURITY RESEARCH CENTER Address before: Hainengda building, No. 9108, Beihuan Road, North District, high tech Zone, Nanshan District, Shenzhen City, Guangdong Province Applicant before: HYTERA COMMUNICATIONS Corp.,Ltd. |