CN112655267B - Time slot scheduling method, terminal and storage medium - Google Patents
Time slot scheduling method, terminal and storage medium Download PDFInfo
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- CN112655267B CN112655267B CN201880097330.3A CN201880097330A CN112655267B CN 112655267 B CN112655267 B CN 112655267B CN 201880097330 A CN201880097330 A CN 201880097330A CN 112655267 B CN112655267 B CN 112655267B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
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Abstract
The embodiment of the application discloses a time slot scheduling method, a terminal and a storage medium, wherein the terminal simultaneously supports Long Term Evolution (LTE) and a new air interface (NR), and the method can comprise the following steps: when a first cell is accessed, determining the uplink time slot ratio of LTE according to the uplink and downlink time slot configuration information of the first cell; and obtaining the maximum uplink symbol occupation ratio of NR according to the uplink time slot occupation ratio and a preset maximum uplink occupation ratio, and sending the maximum uplink symbol occupation ratio to the base station to indicate that the base station mostly schedules the maximum uplink symbol occupation ratio, wherein the preset maximum uplink occupation ratio is the maximum uplink occupation ratio corresponding to the maximum transmitting power in the working frequency band.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a time slot scheduling method, a terminal, and a storage medium.
Background
With the rapid development of the fifth Generation mobile communication technology (5g, 5th-Generation), the terminal can simultaneously support two systems of Long Term Evolution (LTE) and New air interface (NR) and is in a simultaneous working state, and the improvement of the data transmission mode of the terminal can improve the data transmission speed and quality of the terminal, however, the power of the terminal can be improved while the data transmission speed and quality are improved, and a large amount of radiation generated by the high-power terminal is absorbed by the brain of a person, so that the health of the person can be greatly influenced. In order to ensure that the terminal is in a safety standard, the standard has strict index requirements on an electromagnetic wave Absorption ratio (SAR), the SAR value is an index parameter for measuring the electromagnetic radiation intensity of the terminal to a human body, and the standard stipulates that the SAR value of the terminal must be lower than a limited SAR value.
The current method for reducing the SAR value of the terminal comprises the following steps: a diversity antenna is added in the antenna structure, the receiving frequency point of the diversity antenna is matched with the frequency point corresponding to the SAR peak value of the main antenna, and the current distribution of the frequency point corresponding to the SAR peak value of the main antenna is dispersed through the diversity antenna, so that the SAR peak value of the main antenna is reduced; or a plurality of antennas are arranged, and one antenna of the antennas with the SAR value corresponding to the maximum radio frequency power not exceeding a preset SAR threshold value is selected as a main antenna of the terminal from the plurality of antennas, and the like to change the hardware structure of the terminal. And reducing the SAR value of the terminal by reducing the transmission power when the terminal transmits the signal.
However, a terminal capable of supporting both LTE and NR systems is generally designed to be a common antenna when the terminal is in the same frequency band, and in the prior art, a hierarchical antenna is used to shunt a main antenna or an antenna not exceeding a preset SAR threshold is selected from multiple antennas as the main antenna, so that the data transmission condition of LTE and NR working simultaneously is not considered under the condition that the structure of the terminal is complicated, and the quality and speed of data transmission performed by the terminal are affected; in the prior art, the SAR value of the terminal is reduced by reducing the transmission power when the terminal sends a signal, and the overall transmission power is simply reduced, and the data transmission conditions of LTE and NR working simultaneously are not considered, so that the quality and speed of data transmission performed by the terminal are affected.
Disclosure of Invention
The embodiments of the present application are expected to provide a time slot scheduling method, a terminal, and a storage medium, which can improve the quality and speed of data transmission on the premise that a terminal supporting both LTE and NR systems satisfies an SAR value defined by a standard.
The embodiment of the application provides a time slot scheduling method, which is applied to a terminal, wherein the terminal simultaneously supports Long Term Evolution (LTE) and a new air interface (NR), and the method comprises the following steps:
when a first cell is accessed, determining the uplink time slot ratio of the LTE according to the uplink and downlink time slot configuration information of the first cell;
and obtaining the maximum uplink symbol occupation ratio of the NR according to the uplink time slot occupation ratio and a preset maximum uplink occupation ratio, and sending the maximum uplink symbol occupation ratio to a base station to request the base station to schedule the maximum uplink symbol occupation ratio at most for the NR, wherein the preset maximum uplink occupation ratio is the maximum uplink occupation ratio corresponding to the maximum transmitting power in a working frequency band.
In the above method, after the sending the maximum uplink symbol fraction to the base station, the method further includes:
receiving a first uplink symbol ratio sent by the base station;
when the first uplink symbol fraction is greater than the maximum uplink symbol fraction, reducing the transmit power of the LTE and/or the NR.
In the above method, obtaining the maximum uplink symbol ratio of the NR according to the uplink timeslot ratio and a preset maximum uplink ratio includes:
calculating the difference between the preset maximum uplink ratio and the uplink time slot ratio;
and determining the difference between the preset maximum uplink ratio and the uplink time slot ratio as the maximum uplink symbol ratio.
In the above method, the reducing the transmission power of the LTE and/or the NR comprises:
and reducing the transmission power of the LTE and/or the NR according to a preset adjustment strategy so that the transmission power of the LTE and the NR meets a preset transmission requirement.
In the above method, the preset transmission requirement is that a sum of a transmission reference value of the LTE and a transmission reference value of the NR is less than or equal to a maximum transmission reference value, the transmission reference value of the LTE is determined by a ratio of a current transmission power of the LTE to the uplink timeslot, the transmission reference value of the NR is determined by a ratio of a current transmission power of the NR to the first uplink symbol, and the maximum transmission reference value is determined by the maximum transmission power and the preset maximum uplink ratio.
In the above method, the reducing the transmission power of the LTE and/or the NR according to a preset adjustment policy includes:
acquiring an auxiliary carrier of the terminal;
when the secondary carrier is the NR, reducing the transmission power of the NR;
and when the secondary carrier is the LTE, reducing the transmitting power of the LTE.
The embodiment of the application provides a terminal, which supports both LTE and NR, and comprises: the system comprises a processor, a transmitter, a memory and a communication bus, wherein the transmitter is used for transmitting the maximum uplink symbol occupation ratio to a base station so as to request the base station to schedule the maximum uplink symbol occupation ratio for the NR at most; the processor is used for executing the running program stored in the memory so as to realize the following steps:
when a first cell is accessed, determining the uplink time slot ratio of the LTE according to the uplink and downlink time slot configuration information of the first cell; and obtaining the maximum uplink symbol occupation ratio of the NR according to the uplink time slot occupation ratio and a preset maximum uplink occupation ratio, wherein the preset maximum uplink occupation ratio is the maximum uplink occupation ratio corresponding to the maximum transmitting power of the working frequency band.
In the above terminal, the terminal further includes: a receiver;
the receiver is configured to receive a first uplink symbol proportion sent by the base station;
the processor is further configured to reduce the transmit power of the LTE and/or the NR when the first uplink symbol fraction is greater than the maximum uplink symbol fraction.
In the terminal, the processor is further configured to calculate a difference between the preset maximum uplink proportion and the uplink timeslot proportion; and determining the difference between the preset maximum uplink ratio and the uplink time slot ratio as the maximum uplink symbol ratio.
In the above terminal, the processor is further configured to reduce the transmission power of the LTE and/or the NR according to a preset adjustment policy, so that the transmission power of the LTE and the NR meets a preset transmission requirement.
In the above terminal, the preset transmission requirement is that a sum of a transmission reference value of the LTE and a transmission reference value of the NR is less than or equal to a maximum transmission reference value, the transmission reference value of the LTE is determined by a ratio of a current transmission power of the LTE to the uplink timeslot, the transmission reference value of the NR is determined by a ratio of a current transmission power of the NR to the first uplink symbol, and the maximum transmission reference value is determined by the maximum transmission power and the preset maximum uplink ratio.
In the terminal, the processor is further configured to acquire an auxiliary carrier of the terminal; when the secondary carrier is the NR, reducing the transmission power of the NR; and when the secondary carrier is the LTE, reducing the transmitting power of the LTE.
An embodiment of the present application provides a storage medium, on which a computer program is stored, and the computer program is applied to a terminal, and when the computer program is executed by a processor, the time slot scheduling method as described in any one of the above is implemented.
The embodiment of the application provides a time slot scheduling method, a terminal and a storage medium, which are applied to the terminal, wherein the terminal simultaneously supports Long Term Evolution (LTE) and a new air interface (NR). The method comprises the following steps: when a first cell is accessed, determining the uplink time slot ratio of LTE according to the uplink and downlink time slot configuration information of the first cell; and obtaining the maximum uplink symbol occupation ratio of NR according to the uplink time slot occupation ratio and a preset maximum uplink occupation ratio, and sending the maximum uplink symbol occupation ratio to the base station to request the base station to schedule the maximum uplink symbol occupation ratio at most by NR, wherein the preset maximum uplink occupation ratio is the maximum uplink occupation ratio corresponding to the maximum transmitting power in the working frequency band. By adopting the scheme, as the SAR values generated by the same LTE and NR transmitting power are the same, and the LTE generally adopts static or semi-static uplink and downlink time slot ratio, the terminal determines the maximum uplink ratio corresponding to the maximum transmitting power in the working frequency band, determines the uplink time slot ratio of the LTE according to the uplink and downlink time slot configuration information of the first cell, obtains the maximum uplink symbol ratio of the NR according to the uplink time slot ratio and the preset maximum uplink ratio, schedules the maximum uplink symbol ratio for the NR to the base station, avoids the SAR value exceeding the standard by determining the uplink and downlink time slot scheduling mode of the NR, and can improve the quality and speed of data transmission on the premise that the terminal supporting the LTE and NR two systems simultaneously meets the SAR value defined by the standard.
Drawings
Fig. 1 is a first flowchart of a time slot scheduling method according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of an exemplary LTE transmission provided in an embodiment of the present application;
fig. 3 is a diagram illustrating an exemplary NR transmission provided by an embodiment of the present application;
fig. 4 is a second flowchart of a time slot scheduling method according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
So that the manner in which the above recited features and aspects of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the appended drawings, which are included to illustrate, but are not intended to limit the embodiments of the invention.
With the rapid development of the 5G technology, a terminal can support a 5G wireless Network dual-connection protocol architecture, that is, both LTE and NR systems are simultaneously supported, and when the terminal works in a working frequency band, both LTE and NR systems are in a simultaneous working state, wherein an Universal Mobile Telecommunications System Terrestrial Radio Access Network (E-UTRAN, evolved-Universal Mobile Telecommunications System-Terrestrial Radio Access Network) and an NR dual-connection terminal, that is, an EN-DC terminal, use an LTE Packet Core Network (EPC, evolved Packet Core Network element) as a Core Network, and use an LTE protocol stack and an LTE related interface as a basis for signaling interaction and data transmission; the NR and E-UTRAN dual-connection terminals, namely NE-DC terminals, use NR Next Generation (NG) Core as a Core network, and use NR protocol stack and NR related interfaces as the basis for signaling interaction and data transmission between network elements.
The method is characterized in that the method is called an in-band continuous terminal when an LTE system and an NR system of the terminal simultaneously work in two continuous frequency spectrums of the same frequency band, and called an in-band discontinuous terminal when the LTE system and the NR system simultaneously work in two discontinuous frequency spectrums of the same frequency band.
Because LTE generally adopts static or semi-static uplink and downlink timeslot matching, LTE uplink and downlink matching is not changed greatly after being determined, and NR adopts semi-static or dynamic uplink and downlink timeslot matching, so the following embodiments are proposed in the present application based on a principle of preferentially considering LTE uplink and downlink matching conditions and then determining NR uplink and downlink matching scheduling.
Example one
The time slot scheduling method provided in the embodiment of the present application is applied to a terminal, where the terminal supports LTE and NR simultaneously, and as shown in fig. 1, the method may include:
s101, when the first cell is accessed, determining the uplink time slot ratio of the LTE according to the uplink and downlink time slot configuration information of the first cell.
The time slot scheduling method provided by the embodiment of the application is suitable for a scene that the SAR value of the control terminal does not exceed the standard.
In the embodiment of the present application, the terminal may be any device having communication and storage functions, for example: the mobile terminal comprises a tablet Computer, a mobile phone, an electronic reader, a remote controller, a Personal Computer (PC), a notebook Computer, a vehicle-mounted device, a network television, a wearable device and other devices, which are specifically selected according to actual conditions, and the embodiment of the application is not specifically limited.
In the embodiment of the present application, the terminal may be an NE-DC terminal or an EN-DC terminal, and the like, which support a dual connectivity protocol architecture of a 5G wireless network, and is specifically selected according to an actual situation, and the embodiment of the present invention is not specifically limited.
In the embodiment of the invention, when an EN-DC terminal is accessed to a network, LTE is used as a main carrier, and NR is used as an auxiliary carrier; when the NE-DC terminal accesses the network, NR is used as a main carrier, and LTE is used as an auxiliary carrier.
In the embodiment of the application, when the terminal is accessed to the first cell, the terminal reads the uplink and downlink time slot configuration information of the first cell from the system broadcast message, and determines that the terminal works in the working frequency band according to the uplink and downlink time slot configuration information of the first cell, and the uplink time slot ratio of the LTE is UL LTE Wherein the uplink time slot ratio UL of LTE LTE And the ratio of the uplink time slot to the uplink time slot configuration information is obtained.
Exemplarily, the uplink and downlink timeslot configuration information of a cell is 1:3, the ratio of the uplink time slot of LTE is
In the embodiment of the present application, as shown in fig. 2, the uplink and downlink LTE data transmission is performed by using a subframe as a length unit.
S102, obtaining the maximum uplink symbol occupation ratio of NR according to the uplink time slot occupation ratio and a preset maximum uplink occupation ratio, and sending the maximum uplink symbol occupation ratio to a base station so as to dispatch the base station to distribute the maximum uplink symbol occupation ratio at most by NR, wherein the preset maximum uplink occupation ratio is the maximum uplink occupation ratio corresponding to the maximum transmitting power in the working frequency band.
After the terminal determines the uplink time slot ratio of the LTE according to the uplink and downlink time slot configuration information of the first cell, the terminal obtains the maximum uplink symbol ratio of the NR according to the uplink time slot ratio and a preset maximum uplink ratio, and sends the maximum uplink symbol ratio to the base station.
In the embodiment of the application, when the average uplink timeslot proportion of LTE and NR does not exceed the maximum uplink proportion of the maximum transmission power, the SAR value of the terminal can reach the standard, so the terminal first obtains the maximum uplink proportion of the maximum transmission power corresponding to the working frequency band, multiplies 2 by the maximum uplink proportion to obtain a preset maximum uplink proportion corresponding to the maximum transmission power, then calculates a difference value between the preset maximum uplink proportion and the uplink timeslot proportion, determines the difference value between the preset maximum uplink proportion and the uplink timeslot proportion as the maximum uplink symbol proportion of NR, sends the maximum uplink symbol proportion of NR to the base station, and the base station allocates the maximum uplink symbol proportion of NR at most according to the maximum uplink symbol proportion of NR.
In the embodiment of the present application, as shown in fig. 3, the length of a statistical window of an NR uplink ratio is set as a window, each window is composed of S1-Sn +2 symbols, and when the base station schedules the NR uplink ratio, the scheduling is performed by taking the length of the window as a unit.
Illustratively, the maximum transmission power of the terminal when a Specific Absorption Rate (SAR) value of a certain frequency band does not exceed a standard is 26dBM, the maximum uplink occupancy rate of the terminal obtained from the terminal in the frequency band is maxuplinkdutycyclen of 26dBM, and in order to make the SAR value of the terminal meet the standard, the uplink of the LTE of the terminal is uplinkTime slot ratio UL LTE UL ratio of uplink symbols to NR NR Equation (1) needs to be satisfied, namely:
Average(UL LTE +UL NR )≤maxUplinkDutyCycle (1)
therefore, the terminal is UL according to the uplink timeslot proportion of LTE LTE And a maximum uplink duty cycle, calculating the maximum uplink symbol duty of NR as:
UL NR-max ＝2×maxUplinkDutyCycle-UL LTE (2)
it can be understood that, since the SAR values generated by the same LTE and NR transmission powers are the same, and the LTE generally adopts a static or semi-static uplink and downlink timeslot ratio, the terminal determines the maximum uplink occupancy ratio corresponding to the maximum transmission power in the working frequency band, and determines the uplink timeslot occupancy ratio of the LTE according to the uplink timeslot configuration information and the downlink timeslot configuration information of the first cell, and then the terminal obtains the maximum uplink symbol occupancy ratio of the NR according to the uplink timeslot occupancy ratio and the preset maximum uplink occupancy ratio, and schedules the maximum uplink symbol occupancy ratio for the NR to the base station, and the terminal avoids the SAR value from exceeding the standard by determining the uplink and downlink timeslot scheduling of the NR, so that the quality and speed of data transmission can be improved on the premise that the terminal supporting both LTE and NR systems meets the SAR value defined by the standard.
Example two
An embodiment of the present application provides a time slot scheduling method, which is applied to a terminal, where the terminal supports both LTE and NR, and as shown in fig. 4, the method may include:
s201, when the terminal accesses the first cell, the terminal determines the uplink time slot ratio of the LTE according to the uplink and downlink time slot configuration information of the first cell.
The time slot scheduling method provided by the embodiment of the application is suitable for a scene that the SAR value of the control terminal does not exceed the standard.
In this embodiment, the terminal may be any device having communication and storage functions, for example: the mobile phone comprises a tablet computer, a mobile phone, an electronic reader, a remote controller, a PC, a notebook computer, a vehicle-mounted device, a network television, a wearable device and the like, and is specifically selected according to actual conditions.
In the embodiment of the present application, the terminal may be an NE-DC terminal or an EN-DC terminal, and the like, which support a dual connectivity protocol architecture of a 5G wireless network, and is specifically selected according to an actual situation, and the embodiment of the present invention is not specifically limited.
In the embodiment of the invention, when an EN-DC terminal is accessed to a network, LTE is used as a main carrier, and NR is used as an auxiliary carrier; when the NE-DC terminal accesses the network, NR is used as a main carrier, and LTE is used as an auxiliary carrier.
In the embodiment of the application, when the terminal is accessed to the first cell, the terminal reads the uplink and downlink time slot configuration information of the first cell from the system broadcast message, and determines that the terminal works in the working frequency band according to the uplink and downlink time slot configuration information of the first cell, and the uplink time slot ratio of the LTE is UL LTE Wherein, the uplink time slot ratio UL of LTE LTE And the ratio of the uplink time slot to the uplink time slot configuration information is obtained.
Exemplarily, the uplink and downlink timeslot configuration information of a cell is 1:3, the ratio of the uplink time slot of LTE is
In the embodiment of the present application, as shown in fig. 2, the LTE uplink and downlink data transmission is performed by using a subframe as a length unit.
S202, the terminal calculates the difference between the preset maximum uplink ratio and the uplink time slot ratio, wherein the preset maximum uplink ratio is the maximum uplink ratio corresponding to the maximum transmitting power in the working frequency band.
After the terminal determines the uplink time slot ratio of the LTE according to the uplink and downlink time slot configuration information of the first cell, the terminal calculates the difference between the preset maximum uplink ratio and the uplink time slot ratio, wherein the preset maximum uplink ratio is the maximum uplink ratio corresponding to the maximum transmitting road in the working frequency band.
In the embodiment of the application, in a terminal test stage, a terminal working in a working frequency band is tested, the maximum transmission power of the terminal working in the working frequency band is not exceeded, the maximum uplink ratio of the maximum transmission power is calculated and stored in the terminal, and after the terminal determines the uplink time slot ratio of the LTE, the terminal acquires the maximum uplink ratio.
In the embodiment of the application, when the average uplink time slot ratio of the LTE and the NR does not exceed the maximum uplink ratio of the maximum transmission power, the SAR value of the terminal can reach the standard, so that after the terminal obtains the maximum uplink ratio of the maximum transmission power corresponding to the working frequency band, the maximum uplink ratio is multiplied by 2 to obtain the preset maximum uplink ratio corresponding to the maximum transmission power, and then, the terminal calculates the difference between the preset maximum uplink ratio and the uplink time slot ratio.
S203, the terminal determines the difference between the preset maximum uplink ratio and the uplink time slot ratio as the maximum uplink symbol ratio.
And after the terminal calculates the difference between the preset maximum uplink ratio and the uplink time slot ratio, the terminal determines the difference between the preset maximum uplink ratio and the uplink time slot ratio as the maximum uplink symbol ratio.
In the embodiment of the application, the terminal determines the difference between the preset maximum uplink ratio and the uplink timeslot ratio as the maximum uplink symbol ratio of NR.
In the embodiment of the present application, as shown in fig. 3, the length of a statistical window of an NR uplink ratio is set as a window, each window is composed of S1-Sn +2 symbols, and when a base station schedules the NR uplink ratio, the base station performs scheduling by using the length of the window as a unit, so that a terminal calculates the maximum uplink ratio of NR by using the symbol as a unit.
Illustratively, the maximum transmission power of the terminal when a Specific Absorption Rate (SAR) value of a certain frequency band does not exceed a standard is 26dBM, the maximum uplink duty ratio of the terminal obtained from the terminal in the frequency band is maxuplinkdutycyclen of 26dBM, and in order to make the SAR value of the terminal meet the standard, the uplink timeslot duty ratio UL of the LTE of the terminal is UL LTE UL of uplink symbol ratio of NR NR Equation (1) needs to be satisfied, namely:
Average(UL LTE +UL NR )≤maxUplinkDutyCycle (1)
therefore, the terminal has an uplink slot ratio of UL according to LTE LTE And a maximum uplink duty cycle, calculating the maximum uplink symbol duty of NR as:
UL NR-max ＝2×maxUplinkDutyCycle-UL LTE (2)
s204, the terminal sends the maximum uplink symbol occupation ratio to the base station so as to request the base station to schedule the maximum uplink symbol occupation ratio at most by NR.
When the terminal determines the maximum uplink symbol occupation ratio of the NR, the terminal transmits the maximum uplink symbol occupation ratio to the base station.
In the embodiment of the application, a terminal adds the maximum uplink symbol occupation ratio of NR to a time slot scheduling request and sends the time slot scheduling request to a base station, after the base station receives the time slot scheduling request, the maximum uplink symbol occupation ratio of NR is determined from the time slot scheduling request, and whether NR is a main carrier frequency of the terminal is judged, when NR is not the main carrier frequency, the base station allocates a first uplink symbol occupation ratio which is smaller than or equal to the maximum uplink symbol occupation ratio to NR according to the maximum uplink symbol occupation ratio of NR; and when the NR is the main carrier frequency, the base station distributes a first uplink symbol ratio for the terminal according to a preset uplink symbol ratio corresponding to the main carrier frequency.
S205, the terminal receives the first uplink symbol occupation ratio sent by the base station.
And after the terminal sends the maximum uplink symbol occupation ratio to the base station, the terminal receives a first uplink symbol occupation ratio sent by the base station.
In the embodiment of the application, the base station sends the first uplink symbol ratio allocated for the NR to the terminal, so as to control the NR system of the terminal to perform uplink data transmission according to the first uplink symbol ratio.
S206, when the first uplink symbol occupation ratio is larger than the maximum uplink symbol occupation ratio, the terminal reduces the transmission power of LTE and/or NR.
When the terminal receives the first uplink symbol occupation ratio sent by the base station, the terminal compares the first uplink symbol occupation ratio with the maximum uplink symbol occupation ratio, and when the terminal judges that the first uplink symbol occupation ratio is larger than the maximum uplink symbol occupation ratio, the terminal reduces the transmission power of LTE and/or NR.
In the embodiment of the application, after a terminal receives a first uplink symbol ratio sent by a base station, the terminal judges whether the first uplink symbol ratio allocated by the base station for NR meets an SAR value standard, compares the first uplink symbol ratio with a maximum uplink symbol ratio, and when the first uplink symbol ratio is less than or equal to the maximum uplink symbol ratio, the mean value of the first uplink symbol ratio of NR and the uplink timeslot ratio of LTE is less than or equal to a preset maximum uplink ratio, which indicates that the first uplink symbol ratio allocated by the base station for NR meets the SAR value standard; and when the first uplink symbol occupation ratio is larger than the maximum uplink symbol occupation ratio, the average value of the first uplink symbol occupation ratio of the NR and the uplink time slot occupation ratio of the LTE is larger than the preset maximum uplink occupation ratio, and the first uplink symbol occupation ratio distributed for the NR by the base station is represented to not meet the SAR value standard.
In the embodiment of the application, when the terminal judges that the first uplink symbol occupation ratio allocated by the base station for the NR does not meet the SRA value standard, the terminal reduces the transmission power of the LTE and/or the NR according to a preset adjustment strategy so that the transmission power of the LTE and the NR meets the preset transmission requirement.
In the embodiment of the application, the preset emission requirement is that the sum of an emission reference value of LTE and an emission reference value of NR is less than or equal to a maximum emission reference value, wherein the emission reference value of LTE is determined by the ratio of current emission power of LTE to uplink time slot, the emission reference value of NR is determined by the ratio of current emission power of NR to first uplink symbol, and the maximum emission reference value is determined by the maximum emission power and a preset maximum uplink ratio.
In the embodiment of the application, the transmission reference value of the LTE is a transmission reference value obtained by multiplying the current transmission power of the LTE by the uplink time slot ratio, the transmission reference value of the NR is a transmission reference value obtained by multiplying the current transmission power of the LTE by the first uplink symbol ratio, and the maximum transmission reference value is a transmission reference value obtained by multiplying the maximum transmission power by a preset maximum uplink ratio.
In the embodiment of the application, when the transmission power of LTE and NR meets the formula (3), the transmission power representing LTE and NR meets the preset transmission requirement,
P LTE ×UL LTE +P NR ×UL NR ≤ENDC power class ×maxUplinkDutyCycle (3)
wherein, P LTE Current transmission power, P, for LTE system NR Current transmission power meter and ENDC corresponding to NR system power class The maximum transmission power level is typically 26dbm, and the three power values are all linear power values.
Specifically, the terminal reduces the transmission power of LTE and/or NR according to a preset adjustment policy as follows: acquiring an auxiliary carrier of a terminal; when the auxiliary carrier is NR, reducing the transmitting power of NR; and when the auxiliary carrier is LTE, reducing the transmitting power of the LTE.
In the embodiment of the application, the preset adjustment strategy is that the terminal preferentially reduces the transmitting power of the auxiliary carrier, for the EN-DC terminal, the auxiliary carrier is NR, and at the moment, the terminal reduces the transmitting power of NR; for the NE-DC terminal, the secondary carrier is LTE, and at this time, the terminal reduces the transmission power of LTE.
It can be understood that, since the SAR values generated by the same LTE and NR transmission powers are the same, and LTE generally adopts a static or semi-static uplink and downlink timeslot ratio, the terminal determines a maximum uplink occupancy ratio corresponding to the maximum transmission power in the working frequency band, and determines an uplink timeslot occupancy ratio of LTE according to uplink timeslot configuration information and downlink timeslot configuration information of the first cell, and then, the terminal obtains a maximum uplink symbol occupancy ratio of NR according to the uplink timeslot occupancy ratio and a preset maximum uplink occupancy ratio, and schedules the maximum uplink symbol occupancy ratio for NR to the base station, when the terminal determines that the first uplink symbol occupancy ratio is greater than the maximum uplink symbol occupancy ratio, the terminal reduces the LTE and/or NR transmission powers, and avoids exceeding the maximum value by combining the manner of determining the uplink timeslot ratio of NR and downlink timeslot scheduling with the manner of reducing the LTE and/or NR transmission powers, so that the SAR simultaneously supports both LTE and NR systems, and improves the quality and speed of data transmission on the premise that the terminal satisfies the values defined by the standards.
EXAMPLE III
Fig. 5 is a schematic diagram of a composition structure of a terminal according to an embodiment of the present application, and in practical applications, based on the same inventive concept of the first embodiment and the second embodiment, as shown in fig. 5, a terminal 1 according to an embodiment of the present application includes: a processor 10, a transmitter 11, a memory 12 and a communication bus 13. In a Specific embodiment, the Processor 10 may be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing terminal (DSPD), a Programmable Logic terminal (PLD), a Field Programmable Gate Array (FPGA), a CPU, a controller, a microcontroller, and a microprocessor. It is understood that the electronic devices for implementing the above processor functions may be other devices, and the embodiments of the present application are not limited in particular.
In the embodiment of the present application, the communication bus 13 is used to implement connection communication among the processor 10, the transmitter 11, and the memory 12; the transmitter 11 is configured to, when sending the maximum uplink symbol ratio to a base station, request the base station to schedule the maximum uplink symbol ratio for the NR at most; the processor 10 is configured to execute the operating program stored in the memory 12 to implement the following steps:
when a first cell is accessed, determining the uplink time slot ratio of the LTE according to the uplink and downlink time slot configuration information of the first cell; and obtaining the maximum uplink symbol occupation ratio of the NR according to the uplink time slot occupation ratio and a preset maximum uplink occupation ratio, wherein the preset maximum uplink occupation ratio is the maximum uplink occupation ratio corresponding to the maximum transmitting power in the working frequency band.
In the embodiment of the present application, further, the terminal 1 further includes: a receiver 14, wherein the communication bus 13 is further used for realizing connection communication among the processor 10, the transmitter 11, the memory 12 and the receiver 14;
the receiver 14 is configured to receive a first uplink symbol ratio sent by the base station;
the processor 10 is further configured to reduce the transmission power of the LTE and/or the NR when the first uplink symbol fraction is greater than the maximum uplink symbol fraction.
In this embodiment of the present application, further, the processor 10 is further configured to calculate a difference between the preset maximum uplink proportion and the uplink timeslot proportion; and determining the difference between the preset maximum uplink ratio and the uplink time slot ratio as the maximum uplink symbol ratio.
In this embodiment of the present application, further, the processor 10 is further configured to reduce the transmission power of the LTE and/or the NR according to a preset adjustment policy, so that the transmission power of the LTE and/or the NR meets a preset transmission requirement.
In this embodiment of the present application, further, the preset transmission requirement is that a sum of a transmission reference value of the LTE and a transmission reference value of the NR is less than or equal to a maximum transmission reference value, the transmission reference value of the LTE is determined by a ratio of a current transmission power of the LTE to the uplink slot, the transmission reference value of the NR is determined by a ratio of a current transmission power of the NR to the first uplink symbol, and the maximum transmission reference value is determined by the maximum transmission power and the preset maximum uplink ratio.
In this embodiment of the present application, further, the processor 10 is further configured to obtain an auxiliary carrier of the terminal; when the secondary carrier is the NR, reducing the transmission power of the NR; and when the secondary carrier is the LTE, reducing the transmitting power of the LTE.
The terminal provided by the embodiment of the application supports both Long Term Evolution (LTE) and new air interface (NR), and when the terminal is accessed to a first cell, the uplink time slot occupation ratio of the LTE is determined according to uplink and downlink time slot configuration information of the first cell; and obtaining the maximum uplink symbol occupation ratio of NR according to the uplink time slot occupation ratio and a preset maximum uplink occupation ratio, and sending the maximum uplink symbol occupation ratio to the base station to request the base station to schedule the maximum uplink symbol occupation ratio at most by NR, wherein the preset maximum uplink occupation ratio is the maximum uplink occupation ratio corresponding to the maximum transmitting power in the working frequency band. Therefore, according to the terminal provided by the embodiment of the application, as the SAR values generated by the same LTE and NR transmission powers are the same, and the LTE generally adopts a static or semi-static uplink and downlink time slot ratio, the terminal determines the maximum uplink occupancy ratio corresponding to the maximum transmission power in the working frequency band, determines the uplink time slot occupancy ratio of the LTE according to the uplink and downlink time slot configuration information of the first cell, obtains the maximum uplink symbol occupancy ratio of the NR according to the uplink time slot occupancy ratio and the preset maximum uplink occupancy ratio, schedules the maximum uplink symbol occupancy ratio for the NR to the base station, avoids the SAR values from exceeding the standard by determining the uplink and downlink time slot scheduling of the NR, and can improve the quality and speed of data transmission on the premise that the terminal supporting both LTE and NR systems meets the SAR values defined by the standard.
The embodiment of the present application provides a storage medium, where the storage medium stores one or more programs, the one or more programs are executable by one or more processors and applied to a terminal, and when the programs are executed by the processors, the method according to the first to second embodiments is implemented.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising the element.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention or portions thereof contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the methods according to the embodiments of the present invention.
While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Industrial applicability
In the embodiment of the application, as the SAR values generated by the same LTE and NR transmission powers are the same, and the LTE generally adopts a static or semi-static uplink and downlink timeslot ratio, the terminal determines the maximum uplink occupancy ratio corresponding to the maximum transmission power in the working frequency band, and determines the uplink timeslot occupancy ratio of the LTE according to the uplink timeslot configuration information and the downlink timeslot configuration information of the first cell, and then the terminal obtains the maximum uplink symbol occupancy ratio of the NR according to the uplink timeslot occupancy ratio and the preset maximum uplink occupancy ratio, and schedules the maximum uplink symbol occupancy ratio for the NR to the base station, and the terminal avoids the SAR value from exceeding the standard by determining the uplink and downlink timeslot scheduling of the NR, so that the quality and the speed of data transmission can be improved on the premise that the terminal supporting both LTE and NR systems meets the SAR value defined by the standard.
Claims (11)
1. A time slot scheduling method is applied to a terminal, and is characterized in that the terminal simultaneously supports Long Term Evolution (LTE) and a new air interface (NR), and the method comprises the following steps:
when a first cell is accessed, determining the uplink time slot ratio of the LTE according to the uplink and downlink time slot configuration information of the first cell;
obtaining the maximum uplink symbol occupation ratio of the NR according to the uplink time slot occupation ratio and a preset maximum uplink occupation ratio, sending the maximum uplink symbol occupation ratio to a base station to request the base station to schedule the maximum uplink symbol occupation ratio at most for the NR, wherein the preset maximum uplink occupation ratio is the maximum uplink occupation ratio corresponding to the maximum transmitting power in a working frequency band,
wherein, the obtaining the maximum uplink symbol occupation ratio of the NR according to the uplink timeslot occupation ratio and a preset maximum uplink occupation ratio includes:
calculating the difference between the preset maximum uplink ratio and the uplink time slot ratio;
and determining the difference between the preset maximum uplink ratio and the uplink time slot ratio as the maximum uplink symbol ratio.
2. The method of claim 1, wherein after the sending the maximum uplink symbol fraction to a base station, the method further comprises:
receiving a first uplink symbol ratio sent by the base station;
when the first uplink symbol fraction is greater than the maximum uplink symbol fraction, reducing the transmit power of the LTE and/or the NR.
3. The method of claim 2, wherein the reducing the transmission power of the LTE and/or the NR comprises:
and reducing the transmission power of the LTE and/or the NR according to a preset adjustment strategy so that the transmission power of the LTE and the NR meets a preset transmission requirement.
4. The method of claim 3, wherein the predetermined transmission requirement is that a sum of the transmission reference value of the LTE determined by a ratio of a current transmission power of the LTE to the uplink slot and the transmission reference value of the NR determined by a ratio of a current transmission power of the NR to the first uplink symbol is less than or equal to a maximum transmission reference value determined by the maximum transmission power and the predetermined maximum uplink ratio.
5. The method of claim 3, wherein the reducing the transmission power of the LTE and/or the NR according to a preset adjustment strategy comprises:
acquiring an auxiliary carrier of the terminal;
when the secondary carrier is the NR, reducing the transmission power of the NR;
and when the secondary carrier is the LTE, reducing the transmitting power of the LTE.
6. A terminal, wherein the terminal supports both LTE and NR, and wherein the terminal comprises: the system comprises a processor, a transmitter, a memory and a communication bus, wherein the transmitter is used for transmitting the maximum uplink symbol occupation ratio to a base station so as to request the base station to schedule the maximum uplink symbol occupation ratio for the NR at most; the processor is used for executing the running program stored in the memory so as to realize the following steps:
when a first cell is accessed, determining the uplink time slot ratio of the LTE according to the uplink and downlink time slot configuration information of the first cell; obtaining the maximum uplink symbol occupation ratio of the NR according to the uplink time slot occupation ratio and a preset maximum uplink occupation ratio, wherein the preset maximum uplink occupation ratio is the maximum uplink occupation ratio corresponding to the maximum transmitting power in the working frequency band,
the processor is further configured to calculate a difference between the preset maximum uplink proportion and the uplink timeslot proportion; and determining the difference between the preset maximum uplink ratio and the uplink time slot ratio as the maximum uplink symbol ratio.
7. The terminal of claim 6, further comprising: a receiver;
the receiver is configured to receive a first uplink symbol ratio sent by the base station;
the processor is further configured to reduce the transmit power of the LTE and/or the NR when the first uplink symbol fraction is greater than the maximum uplink symbol fraction.
8. The terminal of claim 7,
the processor is further configured to reduce the transmission power of the LTE and/or the NR according to a preset adjustment policy, so that the transmission power of the LTE and the NR meets a preset transmission requirement.
9. The terminal of claim 8, wherein the preset transmission requirement is that a sum of a transmission reference value of the LTE determined by a ratio of a current transmission power of the LTE to the uplink timeslot and a transmission reference value of the NR determined by a ratio of a current transmission power of the NR to the first uplink symbol is less than or equal to a maximum transmission reference value determined by the maximum transmission power and the preset maximum uplink ratio.
10. The terminal of claim 8,
the processor is further configured to acquire an auxiliary carrier of the terminal; when the secondary carrier is the NR, reducing the transmission power of the NR; and when the secondary carrier is the LTE, reducing the transmitting power of the LTE.
11. A storage medium, on which a computer program is stored, for application to a terminal, which computer program, when being executed by a processor, carries out the method according to any one of claims 1 to 5.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/105846 WO2020051917A1 (en) | 2018-09-14 | 2018-09-14 | Time slot scheduling method, and terminal and storage medium |
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| CN112655267A CN112655267A (en) | 2021-04-13 |
| CN112655267B true CN112655267B (en) | 2022-10-28 |
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| CN113573415A (en) * | 2020-04-29 | 2021-10-29 | 中国移动通信有限公司研究院 | Reporting method and updating method of sending parameters, terminal and network side equipment |
| CN113784427B (en) * | 2021-08-18 | 2023-06-06 | 中国联合网络通信集团有限公司 | Power control method and device |
| CN114513221B (en) * | 2021-12-31 | 2024-04-19 | 维沃移动通信有限公司 | Electromagnetic wave absorption ratio adjusting method, device and terminal |
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| WO2011005529A2 (en) * | 2009-06-22 | 2011-01-13 | Qualcomm Incorporated | Method and apparatus that facilitates estimating doppler spread for uplink transmissions |
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| US20170332333A1 (en) * | 2016-05-13 | 2017-11-16 | Qualcomm Incorporated | Managing specific absorption rate for user equipments |
| CN107528957A (en) * | 2016-06-21 | 2017-12-29 | 江苏省产品质量监督检验研究院 | A kind of method of test TD LTE mobile phone specific absorption rates |
| CN107231682A (en) * | 2017-05-25 | 2017-10-03 | 北京小米移动软件有限公司 | Reduce terminal SAR processing method, device and terminal |
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| CN101888699A (en) * | 2009-05-13 | 2010-11-17 | 大唐移动通信设备有限公司 | Method for adjusting time slot configuration |
| WO2011005529A2 (en) * | 2009-06-22 | 2011-01-13 | Qualcomm Incorporated | Method and apparatus that facilitates estimating doppler spread for uplink transmissions |
| CN107222917A (en) * | 2017-06-27 | 2017-09-29 | 中国移动通信集团江苏有限公司 | Power regulating method, device, equipment and medium |
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| CN112655267A (en) | 2021-04-13 |
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