CN110493871B - Method and device for reducing SAR value and computer storage medium - Google Patents

Method and device for reducing SAR value and computer storage medium Download PDF

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CN110493871B
CN110493871B CN201910176755.XA CN201910176755A CN110493871B CN 110493871 B CN110493871 B CN 110493871B CN 201910176755 A CN201910176755 A CN 201910176755A CN 110493871 B CN110493871 B CN 110493871B
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terminal
time period
uplink
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CN110493871A (en
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史志华
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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  • Mobile Radio Communication Systems (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

The invention discloses a method and a device for reducing SAR value and a computer storage medium, wherein the method comprises the following steps: the terminal determines the actual uplink time slot ratio of the terminal; and when the actual uplink time slot occupation ratio of the terminal exceeds the maximum uplink time slot occupation ratio supported by the terminal, no signal is sent on one or more uplink symbols scheduled to the terminal by the network equipment so as to reduce the SAR value of the terminal.

Description

Method and device for reducing SAR value and computer storage medium
Technical Field
The invention relates to the technical field of wireless communication, in particular to a method and a device for a terminal to autonomously reduce an electromagnetic wave Absorption ratio (SAR) value, and a computer storage medium.
Background
SAR is an index parameter for measuring the intensity of electromagnetic radiation of a terminal to a human body, the standard has strict index requirements on the SAR value, and the terminal cannot exceed the limit value. Generally, the higher the transmission power of the terminal is, the higher the SAR value is, and the higher the SAR value is, the higher the uplink timeslot proportion used by the terminal is. Therefore, a high-power terminal (power >23dBm) has a higher SAR value than a normal power terminal (power ═ 23dBm), and the uplink timeslot occupancy needs to be limited to avoid the SAR value exceeding the regulatory requirement.
For the fifth generation (5G, 5)thGeneration) New air interface (NR, New Radio), in order to avoid the problem that the SAR of the high-power terminal exceeds the standard, the terminal needs to report the uplink timeslot proportion supported by the terminal under the high-power condition. And when the actual uplink time slot occupation ratio exceeds the capacity of the terminal, the power grade of the high-power terminal is returned to be the common power terminal. However, the terminal adopting power backoff will cause the reduction of uplink coverage, and the serious one will cause uplink failure, affecting the user experience.
Disclosure of Invention
In order to solve the above technical problem, embodiments of the present invention provide a method and an apparatus for reducing an SAR value, and a computer storage medium.
The method for reducing the SAR value provided by the embodiment of the invention comprises the following steps:
the terminal determines the actual uplink time slot ratio of the terminal;
and when the actual uplink time slot occupation ratio of the terminal exceeds the maximum uplink time slot occupation ratio supported by the terminal, no signal is sent on one or more uplink symbols scheduled to the terminal by the network equipment so as to reduce the SAR value of the terminal.
In the embodiment of the present invention, the method further includes:
the terminal sends a first notification message to the network device, where the first notification message is used to notify the network device that an actual uplink timeslot proportion of the terminal exceeds a maximum uplink timeslot proportion supported by the terminal, so that the network device reduces uplink symbols scheduled to the terminal.
In the embodiment of the present invention, the determining, by the terminal, the actual uplink timeslot proportion of the terminal includes:
after the terminal enters a connection state, recording the actual uplink time slot ratio in a first time period; or,
and recording the actual uplink time slot ratio in a first time period under the condition that the transmitting power of the terminal meets a specified condition.
In this embodiment of the present invention, the recording the actual uplink timeslot proportion in the first time period includes:
the terminal records uplink transmission time length in a first time range in a first time period, and determines uplink symbol time length in a second time range in the first time period based on uplink and downlink configuration information, wherein the first time period comprises the first time range and the second time range;
and the terminal determines the actual uplink time slot occupation ratio in the first time period based on the uplink transmission time length in the first time range and the uplink symbol time length in the second time range.
In the embodiment of the present invention, when the time length from the current time to the initial time is greater than or equal to the time length of the first time period, the time domain position of the first time period changes with the change of the current time.
In this embodiment of the present invention, the changing of the time domain position of the first time period with the change of the current time includes:
and when the current time reaches the end time of the first time period, increasing at least one time unit at the time domain position of the first time period.
In this embodiment of the present invention, adding at least one time unit to the time domain position of the first time period includes:
the first time unit of the first time period is shifted out of the first time period, and a time unit is added at the end of the first time period.
In the embodiment of the present invention, the Time unit is a subframe, a timeslot, or a short Transmission Time Interval (sTTI).
In the embodiment of the present invention, a first time range in the first time period is a time range before a current time in the first time period; the second time range in the first time period is a time range after the current time in the first time period.
The device for reducing the SAR value provided by the embodiment of the invention comprises:
a determining unit, configured to determine an actual uplink timeslot proportion of the terminal;
and the transmission unit is used for not sending signals on one or more uplink symbols which are scheduled to the terminal by the network equipment when the actual uplink time slot occupation ratio of the terminal exceeds the maximum uplink time slot occupation ratio supported by the terminal so as to reduce the SAR value of the terminal.
In the embodiment of the present invention, the apparatus further includes:
a notification unit, configured to send a first notification message to the network device, where the first notification message is used to notify the network device that an actual uplink timeslot proportion of the terminal exceeds a maximum uplink timeslot proportion supported by the terminal, so that the network device reduces uplink symbols scheduled to the terminal.
In the embodiment of the present invention, the determining unit is configured to record an actual uplink timeslot proportion in a first time period after the terminal enters a connected state; or recording the actual uplink time slot occupation ratio in the first time period under the condition that the transmitting power of the terminal meets the specified condition.
In this embodiment of the present invention, the determining unit is configured to record an uplink transmission time length in a first time range in a first time period, and determine an uplink symbol time length in a second time range in the first time period based on uplink and downlink configuration information, where the first time period includes the first time range and the second time range; and determining the actual uplink time slot occupation ratio in the first time period based on the uplink transmission time length in the first time range and the uplink symbol time length in the second time range.
In the embodiment of the present invention, when the time length from the current time to the initial time is greater than or equal to the time length of the first time period, the time domain position of the first time period changes with the change of the current time.
In this embodiment of the present invention, the changing of the time domain position of the first time period with the change of the current time includes:
and when the current time reaches the end time of the first time period, increasing at least one time unit at the time domain position of the first time period.
In this embodiment of the present invention, adding at least one time unit to the time domain position of the first time period includes:
the first time unit of the first time period is shifted out of the first time period, and a time unit is added at the end of the first time period.
In the embodiment of the invention, the time unit is a subframe, a time slot or an sTTI.
In the embodiment of the present invention, a first time range in the first time period is a time range before a current time in the first time period; the second time range in the first time period is a time range after the current time in the first time period.
The computer storage medium provided by the embodiment of the invention stores computer executable instructions thereon, and the computer executable instructions when executed by a processor realize the method for reducing the SAR value.
In the technical scheme of the embodiment of the invention, the terminal determines the actual uplink time slot ratio of the terminal; and when the actual uplink time slot occupation ratio of the terminal exceeds the maximum uplink time slot occupation ratio supported by the terminal, no signal is sent on one or more uplink symbols scheduled to the terminal by the network equipment so as to reduce the SAR value of the terminal. By adopting the technical scheme of the embodiment of the invention, the terminal reduces the uplink time slot ratio in an active packet loss mode, thereby avoiding the problem of the exceeding of the SAR value. On the other hand, the terminal can meet the condition that the SAR value does not exceed the standard without adjusting the power level, and simultaneously, the problems of insufficient uplink coverage and the like caused by adjusting the power level are avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic flow chart of a method for reducing an SAR value according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a temporal location change of a first time period according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating UE interaction with a BS according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an apparatus for reducing SAR values according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the technical solution of the embodiment of the present invention, the following explains a concept related to uplink and downlink resource allocation.
In the Long Term Evolution (LTE) era, a 26dBm high-power terminal is introduced on a Time Division Duplex (TDD) B41, so that the uplink and downlink Time slot ratio used by the network is limited to solve the SAR standard exceeding, that is, more than 50% of the uplink transmitted Time slot ratio cannot be used. This is possible in LTE networks because the uplink and downlink timeslot allocations of LTE are fixed 7 modes, as shown in table 1 below, and the timeslot allocations actually used by the network are also static.
Figure BDA0001989802770000051
TABLE 1
However, for NR, this simple solution of LTE is no longer applicable because the uplink and downlink ratio of NR is no longer fixed mode, but is dynamically adjustable, as shown in table 2 below, which includes uplink symbols (UL symbol, denoted by U in the table), downlink symbols (DL symbol, denoted by D in the table), flexible symbols (X in the table), wherein the flexible symbols can be dynamically set to UL symbol or DL symbol or null symbols for each terminal (UE). Therefore, the standards can not simply limit a certain uplink and downlink ratio to be incapable of using high power. In addition, the uplink and downlink of LTE are both 1ms subframes, and NR uses symbol (symbol) as the basic unit of uplink and downlink, and the length of symbol also varies with the subcarrier spacing used by the network. From the above, in order to avoid the problem that the SAR of the high-power terminal exceeds the standard, a new solution must be found.
Figure BDA0001989802770000061
TABLE 2
Fig. 1 is a schematic flowchart of a method for reducing an SAR value according to an embodiment of the present invention, and as shown in fig. 1, the method for reducing an SAR value includes the following steps:
step 101: the terminal determines the actual uplink timeslot proportion of the terminal.
The terminal in the embodiment of the invention can be any equipment capable of communicating with a network, such as a mobile phone, a tablet computer, a notebook computer, a desktop computer and the like. The network device in the embodiment of the present invention may be a base station, for example, a gbb of a 5G system.
In the embodiment of the present invention, the determination of the actual uplink timeslot proportion of the terminal by the terminal may be implemented by the following manner:
after the terminal enters a connection state, recording the actual uplink time slot ratio in a first time period; or recording the actual uplink time slot occupation ratio in the first time period under the condition that the transmitting power of the terminal meets the specified condition.
Assuming that the first time period corresponds to the time window T, an actual uplink time slot ratio in the first time period is also an uplink time slot ratio in the time window T, and specifically, after the terminal enters a connected state, the terminal starts to circularly record the uplink time slot ratio in the time window T; or, the terminal starts to cyclically record the uplink timeslot proportion in the time window T after meeting a certain condition, such as a higher transmission power interval, and the time window T may be a period of 5ms, 10ms, or longer.
Further, the recording of the actual uplink timeslot proportion in the first time period may be implemented in the following manner:
the terminal records uplink transmission time length in a first time range in a first time period, and determines uplink symbol time length in a second time range in the first time period based on uplink and downlink configuration information, wherein the first time period comprises the first time range and the second time range;
and the terminal determines the actual uplink time slot occupation ratio in the first time period based on the uplink transmission time length in the first time range and the uplink symbol time length in the second time range.
When the time length of the current time from the initial time is greater than or equal to the time length of the first time period, the time domain position of the first time period changes along with the change of the current time. Further, when the current time reaches the end time of the first time period, the time domain position of the first time period is increased by at least one time unit. Specifically, the first time unit of the first time period is shifted out of the first time period, and a time unit is added at the end time of the first time period. In an embodiment, the time unit is a subframe, or a slot, or an sTTI. In the above scheme, the first time range in the first time period is a time range before the current time in the first time period; the second time range in the first time period is a time range after the current time in the first time period.
In the above scheme, the terminal updates the actual uplink timeslot proportion in the first time period by using a time unit as a step length according to the uplink and downlink configuration information.
For example: initially, the time domain position of the first time period is [ T0, T1], where T1-T0 is T, the current time is changed from T0 to T1, and when the current time reaches the end time of the first time period, the time domain position of the first time period needs to be updated, that is: at least one time unit is added to the time domain position of the first time period, for example, one time unit is added, the first time unit of the first time period is shifted out of the first time period, and at the same time, one time unit is added to the end time of the first time period. Referring to fig. 2, a time unit is added to the time domain position of the first time period, and the time unit takes a subframe as an example, a first subframe 1 in a first T0 period is shifted out, and a subframe n +1 is added after a last subframe n of the first T0 period, so that a second T0 period is formed, when the current time reaches the end time of the second T0 period, a first subframe 2 in the second T0 period is shifted out, and a subframe n +2 is added after the last subframe n +1 of the second T0 period, and so on, when the time duration from the current time to an initial time T0 is greater than or equal to the time duration T0 of the first time period, the time domain position of the first time period changes with the change of the current time.
Step 102: and when the actual uplink time slot occupation ratio of the terminal exceeds the maximum uplink time slot occupation ratio supported by the terminal, no signal is sent on one or more uplink symbols scheduled to the terminal by the network equipment so as to reduce the SAR value of the terminal.
In order to meet the requirement of the SAR value, the actual uplink time slot ratio of the high-power terminal does not exceed a certain ratio, and the maximum uplink time slot ratio maxUplinkDutyCycle supported by the terminal is set. When the actual uplink timeslot proportion in the first time period (i.e. the time window T) reaches maxuplinkdtycycle, the terminal actively discards the uplink data transmission scheduled by the network to the terminal, and does not transmit data.
In an embodiment, the terminal sends a first notification message to the network device, where the first notification message is used to notify the network device that an actual uplink timeslot proportion of the terminal exceeds a maximum uplink timeslot proportion supported by the terminal, so that the network device reduces uplink symbols scheduled to the terminal.
In the embodiment of the invention, the terminal discards uplink data transmission scheduled by the network, the network cannot receive ACK or NACK feedback information corresponding to the uplink symbol, and the network has two possible interpretations, namely the symbol is lost or the actual uplink time slot occupation ratio of the terminal exceeds the maximum uplink time slot occupation ratio supported by the terminal. The first notification message reported by the terminal will assist the network in determining the reason for the absence of the uplink transmission signal of the terminal, and further adjust the uplink scheduling policy for the terminal, referring to fig. 3.
According to the technical scheme of the embodiment of the invention, when the terminal detects that the actual uplink time slot occupation ratio exceeds the capacity corresponding to the SAR value, the uplink total power within a period of time is reduced by adopting a mode of actively giving up uplink time slot transmission, so that the SAR statistical value is reduced.
Fig. 4 is a schematic structural diagram of an apparatus for reducing an SAR value according to an embodiment of the present invention, and as shown in fig. 4, the apparatus for reducing an SAR value includes:
a determining unit 401, configured to determine an actual uplink timeslot proportion of the terminal;
a transmission unit 402, configured to not send a signal on one or more uplink symbols scheduled by a network device to the terminal when an actual uplink timeslot proportion of the terminal exceeds a maximum uplink timeslot proportion supported by the terminal, so as to reduce an SAR value of the terminal.
In one embodiment, the apparatus further comprises:
a notifying unit 403, configured to send a first notification message to the network device, where the first notification message is used to notify the network device that an actual uplink timeslot proportion of the terminal exceeds a maximum uplink timeslot proportion supported by the terminal, so that the network device reduces uplink symbols scheduled to the terminal.
In an embodiment, the determining unit 401 is configured to record an actual uplink timeslot proportion in a first time period after the terminal enters a connected state; or recording the actual uplink time slot occupation ratio in the first time period under the condition that the transmitting power of the terminal meets the specified condition.
In an embodiment, the determining unit 401 is configured to record an uplink transmission time length in a first time range in a first time period, and determine an uplink symbol time length in a second time range in the first time period based on uplink and downlink configuration information, where the first time period includes the first time range and the second time range; and determining the actual uplink time slot occupation ratio in the first time period based on the uplink transmission time length in the first time range and the uplink symbol time length in the second time range.
In an embodiment, when the time length from the current time to the initial time is greater than or equal to the time length of the first time period, the time-domain position of the first time period changes with the change of the current time.
In one embodiment, the changing of the time-domain position of the first time period with the change of the current time includes:
and when the current time reaches the end time of the first time period, increasing at least one time unit at the time domain position of the first time period.
In one embodiment, the increasing the temporal location of the first time period by at least one time unit comprises:
the first time unit of the first time period is shifted out of the first time period, and a time unit is added at the end of the first time period.
In an embodiment, the time unit is a subframe, or a slot, or an sTTI.
In one embodiment, the first time range in the first time period is a time range before the current time in the first time period; the second time range in the first time period is a time range after the current time in the first time period.
It should be understood by those skilled in the art that the functions of the units in the apparatus for reducing SAR value shown in fig. 4 can be understood by referring to the related description of the method for reducing SAR value. The functions of the units in the apparatus for reducing SAR values shown in fig. 4 can be implemented by a program running on a processor, and can also be implemented by a specific logic circuit.
The apparatus for reducing SAR values according to the embodiments of the present invention may be implemented in the form of a software function module and sold or used as an independent product, and may also be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several 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 methods described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
Accordingly, the embodiment of the present invention further provides a computer storage medium, in which computer executable instructions are stored, and when the computer executable instructions are executed by a processor, the method for reducing the SAR value is implemented according to the embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a computer device according to an embodiment of the present invention, where the computer device may be a terminal or a network device. As shown in fig. 5, the computer device 100 may include one or more processors 1002 (only one of which is shown in the figure), the processors 1002 may include, but are not limited to, a processing device such as a Microprocessor (MCU) or a Programmable logic device (FPGA), a memory 1004 for storing data, and a transmission device 1006 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 5 is only an illustration and is not intended to limit the structure of the electronic device. For example, computer device 100 may also include more or fewer components than shown in FIG. 5, or have a different configuration than shown in FIG. 5.
The memory 1004 can be used for storing software programs and modules of application software, such as program instructions/modules corresponding to the method in the embodiment of the present invention, and the processor 1002 executes various functional applications and data processing by running the software programs and modules stored in the memory 1004, so as to implement the method described above. The memory 1004 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 1004 may further include memory located remotely from the processor 1002, which may be connected to the computer device 100 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 1006 is used for receiving or sending data via a network. Specific examples of such networks may include wireless networks provided by the communications provider of the computer device 100. In one example, the transmission device 1006 includes a Network adapter (NIC) that can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 1006 can be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
The technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.
In the embodiments provided in the present invention, it should be understood that the disclosed method and intelligent device may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
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, that is, 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, all the functional units in the embodiments of the present invention may be integrated into one second processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.

Claims (17)

1. A method of reducing an electromagnetic wave absorption ratio, SAR, value, the method comprising:
a terminal records uplink transmission time length in a first time range in a first time period, and determines uplink symbol time length in a second time range in the first time period based on uplink and downlink configuration information, wherein the first time period comprises the first time range and the second time range;
the terminal determines the actual uplink time slot occupation ratio in the first time period based on the uplink transmission time length in the first time range and the uplink symbol time length in the second time range;
and when the actual uplink time slot occupation ratio of the terminal exceeds the maximum uplink time slot occupation ratio supported by the terminal, no signal is sent on one or more uplink symbols scheduled to the terminal by the network equipment so as to reduce the SAR value of the terminal.
2. The method of claim 1, wherein the method further comprises:
the terminal sends a first notification message to the network device, where the first notification message is used to notify the network device that an actual uplink timeslot proportion of the terminal exceeds a maximum uplink timeslot proportion supported by the terminal, so that the network device reduces uplink symbols scheduled to the terminal.
3. The method of claim 1 or 2, wherein the terminal determining an actual uplink timeslot proportion for the terminal comprises:
after the terminal enters a connection state, recording the actual uplink time slot ratio in a first time period; or,
and recording the actual uplink time slot ratio in a first time period under the condition that the transmitting power of the terminal meets a specified condition.
4. The method of claim 1, wherein the time-domain position of the first time period changes with the change of the current time when the time duration of the current time from the initial time is greater than or equal to the time duration of the first time period.
5. The method of claim 4, wherein the changing the temporal location of the first time period with the change in the current time comprises:
and when the current time reaches the end time of the first time period, increasing at least one time unit at the time domain position of the first time period.
6. The method of claim 5, wherein the increasing the temporal location of the first time period by at least one time unit comprises:
the first time unit of the first time period is shifted out of the first time period, and a time unit is added at the end of the first time period.
7. The method of claim 5 or 6, wherein the time unit is a subframe, or a slot, or a short time interval, sTTI.
8. The method of any one of claims 1, 2, 4 to 6, wherein a first time range in the first time period is a time range before a current time in the first time period; the second time range in the first time period is a time range after the current time in the first time period.
9. An apparatus to reduce a SAR value, the apparatus comprising:
a determining unit, configured to record an uplink transmission time length in a first time range in a first time period, and determine an uplink symbol time length in a second time range in the first time period based on uplink and downlink configuration information, where the first time period includes the first time range and the second time range; determining the actual uplink time slot occupation ratio in the first time period based on the uplink transmission time length in the first time range and the uplink symbol time length in the second time range;
and the transmission unit is used for not sending signals on one or more uplink symbols which are scheduled to the terminal by the network equipment when the actual uplink time slot occupation ratio exceeds the maximum uplink time slot occupation ratio supported by the terminal so as to reduce the SAR value of the terminal.
10. The apparatus of claim 9, wherein the apparatus further comprises:
a notification unit, configured to send a first notification message to the network device, where the first notification message is used to notify the network device that an actual uplink timeslot proportion of the terminal exceeds a maximum uplink timeslot proportion supported by the terminal, so that the network device reduces uplink symbols scheduled to the terminal.
11. The apparatus according to claim 9 or 10, wherein the determining unit is configured to record an actual uplink timeslot proportion in a first time period after the terminal enters a connected state; or recording the actual uplink time slot occupation ratio in the first time period under the condition that the transmitting power of the terminal meets the specified condition.
12. The apparatus of claim 11, wherein the temporal location of the first time period changes with changes in the current time when the current time is greater than or equal to a duration of the first time period from an initial time.
13. The apparatus of claim 12, wherein the change in the temporal location of the first time period with the change in the current time comprises:
and when the current time reaches the end time of the first time period, increasing at least one time unit at the time domain position of the first time period.
14. The apparatus of claim 13, wherein the temporal location of the first time period is increased by at least one time unit, comprising:
the first time unit of the first time period is shifted out of the first time period, and a time unit is added at the end of the first time period.
15. The apparatus of claim 13 or 14, wherein the time unit is a subframe, or a slot, or an sTTI.
16. The apparatus of any one of claims 9, 10, 12 to 14, wherein a first time range in the first time period is a time range before a current time in the first time period; the second time range in the first time period is a time range after the current time in the first time period.
17. A computer storage medium having stored thereon computer-executable instructions which, when executed by a processor, carry out the method steps of any of claims 1 to 8.
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