CN109474986A - Uplink synchronization method, device, device, storage medium and LTE communication system - Google Patents
Uplink synchronization method, device, device, storage medium and LTE communication system Download PDFInfo
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Abstract
本发明适用于通信领域，提供了一种LTE通信上行同步方法、装置、设备、可读存储介质以及LTE通信系统，其中所述LTE通信上行同步方法包括：接收基站发送的下行信号；根据所述下行信号计算确定下行定时偏移量；根据所述定时偏移量预补偿时延，并向所述基站发送预补偿时延后的上行信号。本发明实施例提供的上行同步方法通过接收的下行信号计算确定下行定时偏移量，并根据所述下行定时偏移量预补偿上行的定时偏移，由于上下行的信道环境相似，大部分的定时偏移经过此步已经被补偿，而无需再频繁地发送同步信号以跟踪快速变化的时延，有效地解决了现有技术中存在的信息传输资源浪费的技术问题。
The present invention is applicable to the field of communications, and provides an LTE communication uplink synchronization method, device, equipment, readable storage medium and an LTE communication system, wherein the LTE communication uplink synchronization method includes: receiving a downlink signal sent by a base station; The downlink signal is calculated to determine the downlink timing offset; the delay is pre-compensated according to the timing offset, and the uplink signal after the pre-compensated delay is sent to the base station. The uplink synchronization method provided by the embodiment of the present invention determines the downlink timing offset by calculating the received downlink signal, and pre-compensates the uplink timing offset according to the downlink timing offset. After this step, the timing offset has been compensated, and there is no need to send synchronization signals frequently to track the rapidly changing time delay, which effectively solves the technical problem of waste of information transmission resources in the prior art.
Description
Technical field
The present invention relates to the communications fields, more particularly to a kind of uplink synchronisation method, device, equipment, storage medium and LTE
Communication system.
Background technique
LTE communication system is a kind of common communication system.In LTE communication system, uplink synchronous is its key technology
One of.So-called uplink synchronous is fully synchronized when being exactly the uplink signal arrival base station of each user terminal.By uplink synchronous,
The generation of the not no ISI of guarantee when base station can be made to carry out Fourier transformation to signal.Uplink synchronous technology substantially increases logical
The availability of frequency spectrum of letter system, while hardware design can also be simplified, reduce cost.
But under the high speeds communication scenes such as satellite, high-speed rail, channel delay pace of change is exceedingly fast, in order to keep uplink same
Step, user terminal need continually to send the signal for uplink timing adjustment to base station.Especially when accessing user is more,
A large amount of running time-frequency resource is synchronized signal occupancy, so that the transmission rate of user data reduces.
As it can be seen that under high-speed communication scene, current uplink synchronous technology the technical issues of there is also serious waste of resources.
Summary of the invention
The embodiment of the present invention provides a kind of method, it is intended to which the technology for solving serious waste of resources existing in the prior art is asked
Topic.
The embodiment of the present invention provides a kind of method, and the method is applied to user terminal, comprising:
Receive the downlink signal that base station is sent；
It is calculated according to the downlink signal and determines downlink timing offset；
The uplink signal delayed when pre-compensating for time delay according to the timing offset, and sending and pre-compensate for the base station.
The embodiment of the present invention also provides a kind of device, and described device is applied to user terminal, comprising:
Downstream signal reception unit, for receiving the downlink signal of base station transmission；
Timing offset determination unit determines downlink timing offset for calculating according to the downlink signal；
Uplink signal transmission unit is pre-compensated for, for pre-compensating for time delay according to the timing offset, and to the base station
The uplink signal delayed when sending precompensation.
The embodiment of the present invention also provides a kind of computer equipment, including memory and processor, stores in the memory
Have computer program, when the computer program is executed by the processor so that the processor execute it is as described above
The step of LTE communication uplink synchronisation method.
The embodiment of the present invention also provides a kind of computer readable storage medium, stores on the computer readable storage medium
There is computer program, when the computer program is executed by processor, so that the processor executes method as described above
LTE communication uplink synchronisation method the step of.
The embodiment of the present invention also provides a kind of LTE communication system, including user terminal and base station, on the user terminal
There is LTE communication uplink synchronous device as described above.
LTE communication uplink synchronisation method provided in an embodiment of the present invention, the downlink signal sent by receiving base station, and root
It is calculated according to the downlink signal and determines downlink timing offset, using the timing slip of downlink timing slip precompensation uplink, and
The uplink signal delayed when sending and pre-compensate for base station, since the channel circumstance of uplink and downlink is similar, most timing slip warp
It crosses this step to be compensated, without continually sending synchronization signal again to track fast-changing time delay, be sent to base station pre-
Uplink signal after delay compensation, and the error of time delay need to be only pre-compensated for certain period modulation later.The present invention is real
The LTE communication uplink synchronisation method of example offer is applied using the timing offset precompensation uplink signal of downlink signal, so that user
Terminal, to track fast-changing time delay, efficiently solves letter existing in the prior art without the frequent synchronization signal that sends
The technical issues of ceasing transmission resource waste.
Detailed description of the invention
Fig. 1 is a kind of step flow chart of LTE communication uplink synchronisation method provided in an embodiment of the present invention；
Fig. 2 is the step flow chart for the LTE communication uplink synchronisation method that another embodiment of the present invention provides；
Fig. 3 is the step flow chart of determining downlink timing offset provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of LTE communication uplink synchronous device provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram for the LTE communication uplink synchronous device that another embodiment of the present invention provides；
Fig. 6 is the structural schematic diagram of timing offset determination unit provided in an embodiment of the present invention；
Fig. 7 is a kind of uplink synchronous flow chart of LTE communication system provided in an embodiment of the present invention:
Fig. 8 is the uplink synchronous flow chart for the LTE communication system that another embodiment of the invention provides
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is a kind of step flow chart of LTE communication uplink synchronisation method provided in an embodiment of the present invention, and details are as follows.
Step S101 receives the downlink signal that base station is sent.
Step S102 is calculated according to the downlink signal and is determined downlink timing offset.
In embodiments of the present invention, the initial position of primary synchronization signal is determined by cross-correlation calculation, so that it is determined that downlink
Timing offset.
In embodiments of the present invention, determine that the specific steps of downlink timing offset please refer to Fig. 3 by cross-correlation calculation
Explanation.
Step S103 pre-compensates for time delay according to the timing offset, and when sending and pre-compensate for the base station is delayed
Uplink signal.
In embodiments of the present invention, the sending instant of uplink signal is adjusted according to the positive and negative and size of timing offset.Such as
Fruit timing offset is positive, and indicates that time delay increases, and correspondingly needs the uplink signal of transmission of corresponding time in advance；If timing is partially
Shifting amount is negative, and indicates that time delay reduces, then needs to delay corresponding time transmission uplink signal accordingly.
In embodiments of the present invention, according to measured result, the uplink and downlink communication time delay of system is not only by channel delay, processing
Time delay, also by receiving and dispatching, both ends sample frequency is inconsistent to be influenced.Crystal oscillator frequency can generate centainly hardware after a period of operation
Deviation, on the contrary if the sample frequency of receiving end is higher than starting, communication delay be will increase, the reduction of then time delay.Assuming that downlink communication
Time delay is tc+ts, wherein tcFor the sum of channel delay and processing delay, tsFor time delay caused by sampling frequency deviation；Then uplink
Communication delay can be expressed as tc-ts.After using downlink communication time-delay precompensation, the uplink signal time delay that base station receives is
tc-ts-(tc+ts)=- 2ts.Change fast channel delay to be compensated, and Delay Variation caused by oscillator frequency deviation is very slow,
So that user terminal no longer needs to continually send synchronization signal to track fast-changing time delay.
LTE communication uplink synchronisation method provided in an embodiment of the present invention, the downlink signal sent by receiving base station, and root
It is calculated according to the downlink signal and determines downlink timing offset, using the timing slip of downlink timing slip precompensation uplink, and
The uplink signal delayed when sending and pre-compensate for base station, since the channel circumstance of uplink and downlink is similar, most timing slip warp
It crosses this step to be compensated, without continually sending synchronization signal again to track fast-changing time delay, be sent to base station pre-
Uplink signal after delay compensation, and the error of time delay need to be only pre-compensated for certain period modulation later.The present invention is real
The LTE communication uplink synchronisation method of example offer is applied using the timing offset precompensation uplink signal of downlink signal, so that user
Terminal, to track fast-changing time delay, efficiently solves letter existing in the prior art without the frequent synchronization signal that sends
The technical issues of ceasing transmission resource waste.
Fig. 2 is the step flow chart for the LTE communication uplink synchronisation method that another embodiment of the present invention provides, and is described in detail such as
Under.
In embodiments of the present invention, with a kind of LTE communication uplink synchronisation method shown in fig. 1 the difference is that, institute
State step further include:
Step S201 receives the first Timing Advance that base station is sent.
In embodiments of the present invention, first Timing Advance is that the first uplink signal calculates based on the received by base station
It determines, and user terminal is sent to by Physical Downlink Shared Channel.
In embodiments of the present invention, the first uplink signal calculates the step for determining Timing Advance based on the received for the base station
Suddenly the specific steps phase for determining downlink timing offset is calculated according to the downlink signal with user terminal in abovementioned steps S102
Seemingly, calculating process similarly uses cross-correlation calculation, but the signal object of calculation processing is different.
In embodiments of the present invention, first uplink signal can be user terminal in abovementioned steps S103 send it is pre-
Uplink signal after delay compensation is also possible to the second uplink delayed when the adjustment that user terminal is sent in following step S202
Signal.
In embodiments of the present invention, caused by first Timing Advance is for compensating due to oscillator frequency deviation
Delay Variation.
Step S202 adjusts time delay according to first Timing Advance and timing offset, and sends out to the base station
Send the second uplink signal delayed when adjustment.
In embodiments of the present invention, wherein timing offset is used to characterize the fast channel delay of variation, the first timing advance
Amount can determine for characterizing Delay Variation caused by oscillator frequency deviation according to timing offset and the first Timing Advance
The delay compensation of uplink signal is sent next time.
In embodiments of the present invention, by obtaining the first Timing Advance for compensating since oscillator frequency deviation causes
Delay Variation improve the effect of uplink synchronous so that the uplink signal delay compensation finally sent is more accurate.
Fig. 3 is the step flow chart of determining downlink timing offset provided in an embodiment of the present invention, and details are as follows.
Step S301 carries out sampling to received downlink signal and obtains downstream digital signal.
In embodiments of the present invention, the downlink signal received is handled as downstream digital signal by sampling, under described
Row digital signal is in the form of array sequence.
Step S302 obtains preset local primary synchronization signal.
In embodiments of the present invention, the preset local primary synchronization signal is also digital signal, in the shape of array sequence
Formula.
Step S303 carries out cross-correlation calculation to the downstream digital signal and local primary synchronization signal.
In embodiments of the present invention, r (n) indicates the corresponding array sequence of downstream digital signal, wherein stores in r (n)
The amplitude of each point in downlink signal；1 (m) indicates the corresponding array sequence of local primary synchronization signal, wherein store in 1 (m)
The amplitude of respective point in local primary synchronization signal.
In embodiments of the present invention, the calculation formula of the cross-correlation are as follows:
Step S304 determines downlink timing offset according to the cross-correlation calculation result.
In embodiments of the present invention, by determining the maximum value in cross-correlation sequence, the maximum institute of cor (n) value is right at this time
The n answered is the initial position of the primary synchronization signal in received downlink signal, then is existed by n value and ideal primary synchronization signal
Position in subframe, which is subtracted each other, can be obtained downlink timing offset.
Fig. 4 is a kind of structural schematic diagram of LTE communication uplink synchronous device provided in an embodiment of the present invention, for the ease of saying
It is bright, part related to the embodiment of the present invention is only shown.
In embodiments of the present invention, the LTE communication uplink synchronous device includes downstream signal reception unit 401, timing
Shift amount determining unit 402 and precompensation uplink signal transmission unit 403.
The primary synchronization signal receiving unit 401, for receiving the downlink signal of base station transmission.
The timing offset determination unit 402 determines downlink timing offset for calculating according to the downlink signal.
In embodiments of the present invention, the initial position of primary synchronization signal is determined by cross-correlation calculation, so that it is determined that downlink
Timing offset.
In embodiments of the present invention, the concrete structure schematic diagram of the timing offset determination unit please refers to the solution of Fig. 6
Release explanation.
The precompensation uplink signal transmission unit 403, for pre-compensating for time delay according to the timing offset, and to institute
It states base station and sends the uplink signal delayed when precompensation.
In embodiments of the present invention, the sending instant of uplink signal is adjusted according to the positive and negative and size of timing offset.Such as
Fruit timing offset is positive, and indicates that time delay increases, and correspondingly needs the uplink signal of transmission of corresponding time in advance；If timing is partially
Shifting amount is negative, and indicates that time delay reduces, then needs to delay corresponding time transmission uplink signal accordingly.
In embodiments of the present invention, according to measured result, the uplink and downlink communication time delay of system is not only by channel delay, processing
Time delay, also by receiving and dispatching, both ends sample frequency is inconsistent to be influenced.Crystal oscillator frequency can generate centainly hardware after a period of operation
Deviation, on the contrary if the sample frequency of receiving end is higher than starting, communication delay be will increase, the reduction of then time delay.Assuming that downlink communication
Time delay is tc+ts, wherein tcFor the sum of channel delay and processing delay, tsFor time delay caused by sampling frequency deviation；Then uplink
Communication delay can be expressed as tc-ts.After using downlink communication time-delay precompensation, the uplink signal time delay that base station receives is
tc-ts-(tc+ts)=- 2ts.Change fast channel delay to be compensated, and Delay Variation caused by oscillator frequency deviation is very slow,
So that user terminal no longer needs to continually send synchronization signal to track fast-changing time delay.
LTE communication uplink synchronous device provided in an embodiment of the present invention, the downlink signal sent by receiving base station, and root
It is calculated according to the downlink signal and determines downlink timing offset, using the timing slip of downlink timing slip precompensation uplink, and
The uplink signal delayed when sending and pre-compensate for base station, since the channel circumstance of uplink and downlink is similar, most timing slip warp
It crosses this step to be compensated, without continually sending synchronization signal again to track fast-changing time delay, be sent to base station pre-
Uplink signal after delay compensation, and the error of time delay need to be only pre-compensated for certain period modulation later.The present invention is real
The LTE communication uplink synchronisation method of example offer is applied using the timing offset precompensation uplink signal of downlink signal, so that user
Terminal, to track fast-changing time delay, efficiently solves letter existing in the prior art without the frequent synchronization signal that sends
The technical issues of ceasing transmission resource waste.
Fig. 5 is the structural schematic diagram for the LTE communication uplink synchronous device that another embodiment of the present invention provides, for the ease of
Illustrate, part related to the embodiment of the present invention is only shown.
In embodiments of the present invention, with a kind of LTE communication uplink synchronous device shown in Fig. 4 the difference is that, also
Including the first Timing Advance receiving unit 501 and the second uplink signal transmission unit 502.
The first Timing Advance receiving unit 501, for receiving the first Timing Advance of base station transmission, described the
By base station, the first uplink signal calculates determination to one Timing Advance based on the received.
In embodiments of the present invention, first Timing Advance is that the first uplink signal calculates based on the received by base station
It determines, and user terminal is sent to by Physical Downlink Shared Channel.
In embodiments of the present invention, the first uplink signal calculates the step for determining Timing Advance based on the received for the base station
Suddenly in aforementioned timing off-set amount determination unit 402 according to the downlink signal calculate determine downlink timing offset specific step
Rapid similar, calculating process similarly uses cross-correlation calculation, but the signal object of calculation processing is different.
In embodiments of the present invention, first uplink signal can be aforementioned precompensation uplink signal transmission unit 403
The uplink signal delayed when the precompensation of transmission, when being also possible to the adjustment that following second uplink signal transmission units 502 are sent
The second uplink signal delayed.
In embodiments of the present invention, caused by first Timing Advance is for compensating due to oscillator frequency deviation
Delay Variation.
The second uplink signal transmission unit 502, for according to first Timing Advance and timing offset
The second uplink signal delayed when adjusting time delay, and sending and adjust to the base station.
In embodiments of the present invention, wherein timing offset is used to characterize the fast channel delay of variation, the first timing advance
Amount can determine for characterizing Delay Variation caused by oscillator frequency deviation according to timing offset and the first Timing Advance
The delay compensation of uplink signal is sent next time.
In embodiments of the present invention, by obtaining the first Timing Advance for compensating since oscillator frequency deviation causes
Delay Variation improve the effect of uplink synchronous so that the uplink signal delay compensation finally sent is more accurate.
Fig. 6 is the structural schematic diagram of timing offset determination unit provided in an embodiment of the present invention, for ease of description, only
Part related to the embodiment of the present invention is shown.
In embodiments of the present invention, the timing offset determination unit include primary synchronization signal retrieval module 601,
Local primary synchronization signal retrieval module 602, cross-correlation calculation module 603 and timing offset determining module 604.
The downstream digital signal processing module 601 obtains downstream digital for carrying out sampling to received downlink signal
Signal.
In embodiments of the present invention, the downlink signal received is handled as downstream digital signal by sampling, under described
Row digital signal is in the form of array sequence.
The local primary synchronization signal obtains module 602, for obtaining preset local primary synchronization signal.
In embodiments of the present invention, the preset local primary synchronization signal is also digital signal, in the shape of array sequence
Formula.
The cross-correlation calculation module 603 carries out cross-correlation meter to the downstream digital signal and local primary synchronization signal
It calculates.
In embodiments of the present invention, r (n) indicates the corresponding array sequence of the first digital signal, wherein stores in r (n)
The amplitude of each point in downlink signal；1 (m) indicates the corresponding array sequence of local primary synchronization signal, wherein store in 1 (m)
The amplitude of respective point in local primary synchronization signal.
In embodiments of the present invention, the calculation formula of the cross-correlation are as follows:
The timing offset determining module 604, for determining downlink timing slip according to the cross-correlation calculation result
Amount.
In embodiments of the present invention, by determining the maximum value in cross-correlation sequence, the maximum institute of cor (n) value is right at this time
The n answered is the initial position of primary synchronization signal in received downlink signal, then by n value and ideal primary synchronization signal in son
Position in frame, which is subtracted each other, can be obtained downlink timing offset.
Fig. 7 is a kind of uplink synchronous flow chart of LTE communication system provided in an embodiment of the present invention, and details are as follows.
Step S701, base station send downlink signal to user terminal.
Step S702, downlink signal and cross-correlation formula calculate determining downlink timing slip to user terminal based on the received
Amount.
Step S703, user terminal pre-compensates for time delay according to downlink timing offset, when the base station Xiang Suoshu sends precompensation
The uplink signal delayed.
In embodiments of the present invention, the sending instant of uplink signal is adjusted according to the positive and negative and size of timing offset.Such as
Fruit timing offset is positive, and indicates that time delay increases, and correspondingly needs the uplink signal of transmission of corresponding time in advance；If timing is partially
Shifting amount is negative, and indicates that time delay reduces, then needs to delay corresponding time transmission uplink signal accordingly.
In embodiments of the present invention, according to measured result, the uplink and downlink communication time delay of system is not only by channel delay, processing
Time delay, also by receiving and dispatching, both ends sample frequency is inconsistent to be influenced.Crystal oscillator frequency can generate centainly hardware after a period of operation
Deviation, on the contrary if the sample frequency of receiving end is higher than starting, communication delay be will increase, the reduction of then time delay.Assuming that downlink communication
Time delay is tc+ts, wherein tc is the sum of channel delay and processing delay, tsFor time delay caused by sampling frequency deviation；Then uplink
Communication delay can be expressed as tc-ts.After using downlink communication time-delay precompensation, the uplink signal time delay that base station receives is
tc-ts-(tc+ts)=- 2ts.Change fast channel delay to be compensated, and Delay Variation caused by oscillator frequency deviation is very slow,
So that user terminal no longer needs to continually send synchronization signal to track fast-changing time delay.
LTE communication system provided in an embodiment of the present invention, including user terminal and base station, wherein user terminal is by connecing
The downlink signal that base station is sent is received, and is calculated according to the downlink signal and determines downlink timing offset, it is inclined using downlink timing
The uplink signal delayed when moving the timing slip of precompensation uplink, and sending and pre-compensate for base station, due to the channel ring of uplink and downlink
Border is similar, and most timing slip is compensated by this step, fast to track without continually sending synchronization signal again
The time delay of speed variation, the uplink signal delayed when sending and pre-compensate for base station, and need to only be mended in advance with certain period modulation later
Repay the error of time delay.LTE communication uplink synchronisation method provided in an embodiment of the present invention utilizes the timing slip of downlink signal
Amount precompensation uplink signal, so that user terminal is without frequently sending synchronization signal to track fast-changing time delay, effectively
Ground solves the technical issues of information transmission resources existing in the prior art waste.
Fig. 8 is the uplink synchronous flow chart for the LTE communication system that another embodiment of the invention provides, and details are as follows.
In embodiments of the present invention, with the uplink synchronous flow chart of the LTE communication system shown in Fig. 7 the difference is that,
Further include the subsequent multiple circulations being adjusted to uplink signal synchronization, for it is each circulation include four step S801, S802,
S803 and S804.
Step S801, uplink signal calculates determining first Timing Advance based on the received for base station.
In embodiments of the present invention, the first uplink signal calculates the step for determining Timing Advance based on the received for the base station
Suddenly the specific steps phase for determining downlink timing offset is calculated according to the downlink signal with user terminal in abovementioned steps S702
Seemingly, calculating process similarly uses cross-correlation calculation, but the signal object of calculation processing is different.
The Timing Advance is sent to user terminal by Physical Downlink Shared Channel by step S802, base station.
Step S803, user terminal adjust time delay according to first Timing Advance and timing offset.
In embodiments of the present invention, timing offset, which is used to characterize, changes fast channel delay, and the first Timing Advance is used
In characterizing Delay Variation caused by oscillator frequency deviation, can determine according to timing offset and the first Timing Advance next
The secondary delay compensation for sending uplink signal.
Step S804, user terminal send uplink signal to base station according to determining time delay.
Hereafter, step S805 is identical as step S801, i.e., uplink signal determines that timing mentions based on the received for base station each time
Preceding amount is simultaneously sent to user terminal, so that user terminal is adjusted when sending uplink signal next time according to the Timing Advance
Time delay.
LTE communication system provided in an embodiment of the present invention, user terminal are used by obtaining the Timing Advance that base station determines
The Delay Variation caused by compensation is due to oscillator frequency deviation, so that the uplink signal delay compensation finally sent is more smart
Really, the effect of uplink synchronous is improved.
The embodiment of the present invention provides a kind of computer installation, which includes processor, and the processor is used for
The step of method provided by embodiment shown by above-mentioned Fig. 1 to Fig. 4 is realized when executing the computer program stored in memory
Suddenly.
Illustratively, computer program can be divided into one or more modules, one or more module is stored
In memory, and by processor it executes, to complete the present invention.One or more modules, which can be, can complete specific function
Series of computation machine program instruction section, the instruction segment is for describing implementation procedure of the computer program in computer installation.Example
Such as, computer program can be divided into the step of method that above-mentioned each embodiment of the method provides.
It will be understood by those skilled in the art that the description of above-mentioned computer installation is only example, do not constitute to calculating
The restriction of machine device may include component more more or fewer than foregoing description, perhaps combine certain components or different portions
Part, such as may include input-output equipment, network access equipment, bus etc..
Alleged processor can be central processing unit (Central Processing Unit, CPU), can also be it
His general processor, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmab le Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic device
Part, discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processing
Device etc., the processor are the control centres of the computer installation, are filled using various interfaces and the entire computer of connection
The various pieces set.
The memory can be used for storing the computer program and/or module, and the processor is by operation or executes
Computer program in the memory and/or module are stored, and calls the data being stored in memory, described in realization
The various functions of computer installation.The memory can mainly include storing program area and storage data area, wherein storage program
It area can application program (such as sound-playing function, image player function etc.) needed for storage program area, at least one function
Deng；Storage data area, which can be stored, uses created data (such as audio data, phone directory etc.) etc. according to mobile phone.In addition,
Memory may include high-speed random access memory, can also include nonvolatile memory, such as hard disk, memory, grafting
Formula hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card
(Flash Card), at least one disk memory, flush memory device or other volatile solid-state parts.
If the integrated module/unit of the computer installation is realized in the form of SFU software functional unit and as independent
Product when selling or using, can store in a computer readable storage medium.Based on this understanding, the present invention is real
All or part of the process in existing above-described embodiment method, can also instruct relevant hardware come complete by computer program
At the computer program can be stored in a computer readable storage medium, which is being executed by processor
When, it can be achieved that the step of above-mentioned each embodiment of the method.Wherein, the computer program includes computer program code, described
Computer program code can be source code form, object identification code form, executable file or certain intermediate forms etc..The meter
Calculation machine readable medium may include: can carry the computer program code any entity or device, recording medium, USB flash disk,
Mobile hard disk, magnetic disk, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory
Device (RAM, Random Access Memory), electric carrier signal, electric signal and software distribution medium etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
Priority Applications (1)
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| CN112468252A (en) * | 2020-11-24 | 2021-03-09 | 北京邮电大学 | Time delay compensation method and device in mobile network, electronic equipment and storage medium |
| CN112636858B (en) * | 2020-12-11 | 2022-03-18 | 北京邮电大学 | Timing method, system, electronic device and medium for multi-network device cooperation |
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| CN112735113A (en) * | 2020-12-28 | 2021-04-30 | 天翼物联科技有限公司 | Water-gas meter data continuous transmission method, system, device and storage medium |
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| CN114828196A (en) * | 2021-01-18 | 2022-07-29 | 展讯半导体(南京)有限公司 | Data transmission method, chip, terminal and storage medium |
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| CN118510009A (en) * | 2024-05-10 | 2024-08-16 | 西安电子科技大学 | Uplink priority time division duplex communication method suitable for large-delay mobile communication scene |
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