CN112188513A - Method and device for improving data transmission rate of terminal - Google Patents
Method and device for improving data transmission rate of terminal Download PDFInfo
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- CN112188513A CN112188513A CN201910604067.9A CN201910604067A CN112188513A CN 112188513 A CN112188513 A CN 112188513A CN 201910604067 A CN201910604067 A CN 201910604067A CN 112188513 A CN112188513 A CN 112188513A
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Abstract
The embodiment of the invention provides a method and a device for improving the data transmission rate of a terminal, wherein the method comprises the following steps: acquiring the current data transmission rate of a first terminal in a current data transmission period; and if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, allocating the frequency band resources for the first terminal again according to the priority of the first terminal and the residual frequency band resources in the system. According to the method and the device for improving the data transmission rate of the terminal, provided by the embodiment of the invention, in the data transmission process, the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service is monitored in real time in each data transmission period, and when the actual data transmission rate is low, the frequency band resource is reallocated for the terminal in a sub-band expansion or preemption mode, so that the data transmission rate of the terminal is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for increasing a data transmission rate of a terminal.
Background
The industry private network communication system is a communication system specially designed for different industries, for example, the LTE230 system applied to the industries of power, oil, and the like, has many characteristics compared with the common macro network communication system, such as: narrow frequency band, low frequency point, low speed and high capacity. The services supported by the private network communication system are generally low in speed and relatively insensitive to time delay. The existing LTE macro network communication system is mainly designed to meet the requirements of a broadband mobile internet and provide internet surfing experience with high bandwidth and high response speed for users. The LTE macro network communication system obviously cannot meet the requirements of industry private network applications, and therefore, a private network communication system applied to a specific industry needs to be developed.
In the prior art, the main features of the narrowband internet of things (NB-IoT) are: the number of terminals is large, the energy-saving requirement of the terminals is high, the first-sending small data packet is mainly used, and the data packet may be in a non-IP format. When a private network communication system is designed, a related technology in NB-IoT is introduced, in the user plane, in consideration of power saving and signaling overhead reduction, a semi-static scheduling method similar to that in a macro network communication system is adopted, after one-time authorization, a frequency band resource specified by the authorization is used for a long time, and the time interval of a terminal reporting a channel quality report and a cache report is increased. Thereby meeting the requirements of the industry private network application.
However, if a low-priority terminal performs data transmission first and occupies more frequency domain resources (i.e., the number of subbands), a high-priority terminal that is accessed later may not achieve a guaranteed bit traffic rate (GBR) for a long time because the remaining frequency domain resources that are allocated are not enough. Meanwhile, when the frequency domain resources obtained by the high-priority terminal are higher than the preset lowest frequency domain resources, the high-priority terminal cannot seize the frequency domain resources of the low-priority terminal even if the high-priority terminal cannot reach the GBR for a long time. The data transmission rate of the terminal with high service priority and good channel condition can not reach the GBR requirement, and the data transmission rate of the terminal with low service priority can reach the GBR.
Disclosure of Invention
The embodiment of the invention provides a method and a device for improving the data transmission rate of a terminal, which are used for solving the technical problem of low data transmission rate of the terminal.
In order to solve the foregoing technical problem, in one aspect, an embodiment of the present invention provides a method for increasing a data transmission rate of a terminal, where the method includes:
acquiring the current data transmission rate of a first terminal in a current data transmission period;
and if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, allocating the frequency band resources for the first terminal again according to the priority of the first terminal and the residual frequency band resources in the system.
Further, the reallocating the frequency band resource to the first terminal according to the priority of the first terminal and the remaining frequency band resource in the system specifically includes:
according to the current data transmission rate of the first terminal, the average value of MCS levels authorized to the first terminal by a plurality of continuous data transmission periods before the current data transmission period, and the initial MCS level and the initial sub-band number allocated to the first terminal in the current data transmission period, determining the number of sub-bands required to be added to the first terminal;
if the priority of the first terminal is judged and known to be high priority and the frequency band resource in the system can be expanded, the frequency band of the first terminal is expanded; when the number of idle sub-bands in the system is greater than or equal to the number of sub-bands which need to be added for the first terminal, and the idle sub-bands in the system are continuous with the initial sub-bands which have been allocated for the first terminal in the current data transmission period, the frequency band resources in the system can be expanded, otherwise, the frequency band resources in the system cannot be expanded.
Further, after determining the number of subbands that need to be added to the first terminal, the method further includes:
and if the priority of the first terminal is judged to be high priority and the frequency band resource in the system can not be expanded, performing frequency band preemption on the first terminal.
Further, after determining the number of subbands that need to be added to the first terminal, the method further includes:
and if the priority of the first terminal is judged to be low priority and the number of idle sub-bands in the system is more than or equal to the number of sub-bands needing to be added to the first terminal, performing band expansion on the first terminal.
Further, the determining, according to the current data transmission rate of the first terminal, an average value of MCS levels granted to the first terminal by a plurality of consecutive data transmission periods before the current data transmission period, and an initial MCS level and an initial number of subbands allocated to the first terminal in the current data transmission period, the number of subbands to be added to the first terminal is specifically included:
judging the size relationship between the average value and the initial MCS level;
if the average value is judged to be larger than or equal to the initial MCS level, calculating the number of sub-bands which need to be added to the first terminal according to a first preset formula, wherein the first preset formula is as follows:
wherein, Δ NaddIndicating the number of subbands that need to be added for the first terminal, GBR indicating the guaranteed bit rate,
indicating the current data transmission rate, N, of the first terminalData_initRepresenting the initial sub-band number allocated to the first terminal in the current data transmission period;
if the average value is judged to be smaller than the initial MCS level, calculating the number of sub-bands which need to be added to the first terminal according to a second preset formula, wherein the second preset formula is as follows:
ΔNadd＝max{N_subband,NData_init+1}-NData_init
wherein, Δ NaddIndicating the number of sub-bands required to be added to the first terminal, N _ sub-band indicating the total number of sub-bands required for the data transmission speed of the first terminal to reach the guaranteed bit rate, calculated according to the average value, NData_initIndicating the initial allocation of the first terminal in the current data transmission periodThe starting subband number.
Further, the performing frequency band preemption on the first terminal specifically includes:
judging whether the data transmission rates of the first terminal in a plurality of continuous data transmission periods before the current data transmission period are all lower than a guaranteed bit rate;
and if the data transmission rates of the first terminal in a plurality of continuous data transmission periods before the current data transmission period are lower than the guaranteed bit rate, scheduling the frequency band resource occupied by the second terminal to the first terminal.
Further, the priority of the second terminal is lower than that of the first terminal, and a duration of the second terminal in a preset time period before the current time when the data transmission rate is lower than the guaranteed bit rate is less than a preset threshold.
In another aspect, an embodiment of the present invention provides a network-side device, including:
the rate monitoring module is used for acquiring the current data transmission rate of the first terminal in the current data transmission period;
and the frequency band adjusting module is used for reallocating the frequency band resources to the first terminal according to the priority of the first terminal and the residual frequency band resources in the system if the current data transmission rate of the first terminal is judged to be lower than the guaranteed bit rate.
In another aspect, an embodiment of the present invention provides an electronic device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the above method when executing the computer program.
In yet another aspect, the present invention provides a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the above method.
According to the method and the device for improving the data transmission rate of the terminal, provided by the embodiment of the invention, in the data transmission process, the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service is monitored in real time in each data transmission period, and when the actual data transmission rate is low, the frequency band resource is reallocated for the terminal in a sub-band expansion or preemption mode, so that the data transmission rate of the terminal is improved.
Drawings
Fig. 1 is a schematic diagram illustrating a method for increasing a data transmission rate of a terminal according to an embodiment of the present invention;
fig. 2 is a schematic logic flow diagram of increasing a data transmission rate of a terminal according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a network-side device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic diagram of a method for increasing a terminal data transmission rate according to an embodiment of the present invention, and as shown in fig. 1, an embodiment of the present invention provides a method for increasing a terminal data transmission rate, where an execution subject of the method is a network side device, for example, a base station, an MME, and the like, and the method includes:
step S101, in the current data transmission period, the current data transmission rate of the first terminal is obtained.
Specifically, in the process of data transmission by a terminal, a network side device monitors the actual transmission rate of each service of the current terminal in real time in each data transmission period, and when one terminal performs multiple services simultaneously, the average data transmission rate of the service with the highest priority is used as the data transmission rate of the terminal.
In a current data transmission period, first, a current data transmission rate of a first terminal is obtained.
For example, the average data transmission rate of the jth service of the ith terminal is calculated as follows:
wherein the content of the first and second substances,
average data transmission rate at time T for jth service of ith terminalCIs a filter factor which is the same as the filter factor used in the calculation of the MCS (modulation and coding strategy) level, TPDCCHFor data transmission period, one data transmission period is one PDCCH period (scheduling period of physical downlink control channel), BiNumber of bits for correct transmission of data in PDCCH period, BL2HeadIs L2 head length.
Step S102, if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, allocating the frequency band resource for the first terminal again according to the priority of the first terminal and the residual frequency band resource in the system.
Specifically, when there is an ongoing GBR (guaranteed bit rate) service in the first terminal, if the current data transmission rate of the first terminal is greater than or equal to the guaranteed bit rate and the GBR can be satisfied, the number and position of the current sub-band allocations are maintained without adjusting the sub-band resources of the first terminal.
And if the current data transmission rate of the first terminal is less than the guaranteed bit rate and does not meet the GBR, allocating the frequency band resources for the first terminal again according to the priority of the first terminal and the residual frequency band resources in the system.
For example, band expansion or band preemption may be initiated for the first terminal to enable adjustment of the subband resources for the first terminal.
In the method for improving the data transmission rate of the terminal provided by the embodiment of the invention, in the data transmission process, the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service is monitored in real time in each data transmission period, and when the actual data transmission rate is lower, the frequency band resource is reallocated for the terminal in a sub-band expansion or preemption mode, so that the data transmission rate of the terminal is improved.
Based on any of the foregoing embodiments, further, the reallocating the frequency band resource to the first terminal according to the priority of the first terminal and the remaining frequency band resource in the system specifically includes:
according to the current data transmission rate of the first terminal, the average value of MCS levels authorized to the first terminal by a plurality of continuous data transmission periods before the current data transmission period, and the initial MCS level and the initial sub-band number allocated to the first terminal in the current data transmission period, determining the number of sub-bands required to be added to the first terminal;
if the priority of the first terminal is judged and known to be high priority and the frequency band resource in the system can be expanded, the frequency band of the first terminal is expanded; when the number of idle sub-bands in the system is greater than or equal to the number of sub-bands which need to be added for the first terminal, and the idle sub-bands in the system are continuous with the initial sub-bands which have been allocated for the first terminal in the current data transmission period, the frequency band resources in the system can be expanded, otherwise, the frequency band resources in the system cannot be expanded.
Specifically, in the prior art, in order to meet the requirements of reducing the power consumption of the terminal and reducing the system overhead required by the industry private network, after resources are allocated to the terminal once, the resources are not changed for a long time, the number of the allocated resources is determined by a preset initial modulation coding mode and a guaranteed bit rate of a service, in the actual terminal service process, a channel does not conform to the initial modulation coding mode, so that a difference exists between an actual transmission rate and an expected transmission rate, and the actual rate of the terminal cannot reach the rate required by the service for a long time.
In order to solve the foregoing technical problem, in the embodiment of the present invention, in the process of adjusting the sub-band resource of the first terminal, a specific manner for adjusting the sub-band resource of the first terminal needs to be comprehensively considered according to the current channel quality information of the first terminal, the priority of the first terminal, and the initial resource allocated to the first terminal in the current data transmission period.
Firstly, according to the current data transmission rate of a first terminal, the average value of MCS levels respectively authorized to the first terminal by a plurality of continuous data transmission periods before the current data transmission period, and the initial MCS level and the initial sub-band number allocated to the first terminal in the current data transmission period, the number of sub-bands required to be added to the first terminal is determined.
Then, if the priority of the first terminal is high priority and the frequency band resource in the system can be expanded, the frequency band expansion is carried out on the first terminal; when the number of idle sub-bands in the system is greater than or equal to the number of sub-bands which need to be added for the first terminal, and the idle sub-bands in the system are continuous with the initial sub-bands which have been allocated for the first terminal in the current data transmission period, the frequency band resources in the system can be expanded, otherwise, the frequency band resources in the system cannot be expanded. Therefore, after the frequency band expansion is carried out on the first terminal, the sub-bands are kept continuous, and the interference is avoided.
For example, the first terminal currently occupies 3 subbands, and it is calculated that the first terminal needs 5 total subbands whose data transmission rate can reach the guaranteed bit rate, and therefore, 2 subbands need to be added to the first terminal. If the number of idle sub-bands in the system is greater than or equal to 2 and the idle sub-bands are continuous with 3 currently occupied sub-bands of the first terminal, the first terminal can be subjected to band expansion, that is, 2 sub-bands continuous with 3 currently occupied sub-bands of the first terminal are selected from the idle sub-bands in the system and allocated to the first terminal, so that the data transmission rate of the first terminal is improved.
In the method for improving the data transmission rate of the terminal provided by the embodiment of the invention, in the data transmission process, the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service is monitored in real time in each data transmission period, and when the actual data transmission rate is lower, the frequency band resource is reallocated for the terminal in a sub-band expansion or preemption mode, so that the data transmission rate of the terminal is improved.
Based on any of the foregoing embodiments, further, after determining the number of subbands that need to be added to the first terminal, the method further includes:
and if the priority of the first terminal is judged to be high priority and the frequency band resource in the system can not be expanded, performing frequency band preemption on the first terminal.
Specifically, after determining the number of subbands that need to be added for the first terminal, if the priority of the first terminal is a high priority and the band resource in the system is not expandable, performing band preemption on the first terminal.
The frequency band preemption refers to scheduling other sub-bands which are occupied by the terminal with the priority lower than that of the first terminal to the first terminal for use.
The non-expandable band resource in the system includes two cases: first, the number of idle subbands in the system is smaller than the number of subbands that need to be added to the first terminal, for example, 2 subbands need to be added to the first terminal, but the system only has 1 idle subband. Secondly, the number of idle sub-bands in the system is greater than or equal to the number of sub-bands that need to be added to the first terminal, but the idle sub-bands in the system are not continuous with the initial sub-bands that have been allocated to the first terminal in the current data transmission period, for example, 2 sub-bands need to be added to the first terminal, and there are 3 idle sub-bands in the system, but the 3 idle sub-bands in the system are not continuous with the initial sub-bands that have been allocated to the first terminal in the current data transmission period.
In the method for improving the data transmission rate of the terminal provided by the embodiment of the invention, in the data transmission process, the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service is monitored in real time in each data transmission period, and when the actual data transmission rate is lower, the frequency band resource is reallocated for the terminal in a sub-band expansion or preemption mode, so that the data transmission rate of the terminal is improved.
Based on any of the foregoing embodiments, further, after determining the number of subbands that need to be added to the first terminal, the method further includes:
and if the priority of the first terminal is judged to be low priority and the number of idle sub-bands in the system is more than or equal to the number of sub-bands needing to be added to the first terminal, performing band expansion on the first terminal.
Specifically, after determining the number of subbands that need to be added to the first terminal, if the priority of the first terminal is a low priority, at this time, whether the extended subbands are continuous is not considered any more, and as long as the number of idle subbands in the system is greater than or equal to the number of subbands that need to be added to the first terminal, the frequency band extension may be performed on the first terminal. Thereby increasing the data transmission rate of the first terminal.
If there are not enough band resources in the system, since the priority of the first terminal is low, the band preemption is not performed any more. Therefore, the data transmission rate of the high-priority terminal is improved, and the data transmission rate of the low-priority terminal is also considered.
In the method for improving the data transmission rate of the terminal provided by the embodiment of the invention, in the data transmission process, the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service is monitored in real time in each data transmission period, and when the actual data transmission rate is lower, the frequency band resource is reallocated for the terminal in a sub-band expansion or preemption mode, so that the data transmission rate of the terminal is improved.
Based on any of the above embodiments, further, determining, according to the current data transmission rate of the first terminal, an average value of MCS levels granted to the first terminal by a plurality of consecutive data transmission periods before the current data transmission period, and an initial MCS level and an initial number of subbands allocated to the first terminal in the current data transmission period, the number of subbands to be added to the first terminal specifically includes:
judging the size relationship between the average value and the initial MCS level;
if the average value is judged to be larger than or equal to the initial MCS level, calculating the number of sub-bands which need to be added to the first terminal according to a first preset formula, wherein the first preset formula is as follows:
wherein, Δ NaddIndicating the number of subbands that need to be added for the first terminal, GBR indicating the guaranteed bit rate,
indicating the current data transmission rate, N, of the first terminalData_initRepresenting the initial sub-band number allocated to the first terminal in the current data transmission period;
if the average value is judged to be smaller than the initial MCS level, calculating the number of sub-bands which need to be added to the first terminal according to a second preset formula, wherein the second preset formula is as follows:
ΔNadd＝max{N_subband,NData_init+1}-NData_init
wherein, Δ NaddIndicating the number of sub-bands required to be added to the first terminal, N _ sub-band indicating the total number of sub-bands required for the data transmission speed of the first terminal to reach the guaranteed bit rate, calculated according to the average value, NData_initIndicating the initial number of subbands assigned to the first terminal in the current data transmission period.
Specifically, in the process of determining the number of subbands that need to be added for the first terminal, it needs to be considered whether the current channel quality of the first terminal matches the initial MCS level allocated to the first terminal in the current data transmission period.
First, the current data transmission period is obtainedAverage value of MCS levels respectively authorized to the first terminal in a plurality of previous continuous data transmission periods
The number of the continuous data transmission cycles can be set according to actual conditions.
Then, the average value of MCS levels respectively authorized to the first terminal by a plurality of continuous data transmission periods before the current data transmission period is compared with the initial MCS level MCS allocated to the first terminal in the current data transmission periodinitThe magnitude relationship of (1).
If it is not
Calculating the number of sub-bands required to be added to the first terminal according to a first preset formula, wherein the first preset formula is as follows:
wherein, Δ NaddIndicating the number of subbands that need to be added for the first terminal, GBR indicating the guaranteed bit rate,
indicating the current data transmission rate, N, of the first terminalData_initIndicating the initial number of subbands assigned to the first terminal in the current data transmission period.
If it is not
Calculating the number of sub-bands required to be added to the first terminal according to a second preset formula, wherein the second preset formula is as follows:
ΔNadd＝max{N_subband,NData_init+1}-NData_init
wherein, Δ NaddIndicating the number of subbands needed to be added for the first terminal, and N _ subband indicating the number of subbands to be added according to the average
The total number of sub-bands, N, required for the calculated data transmission speed of the first terminal to reach the guaranteed bit rateData_initIndicating the initial number of subbands assigned to the first terminal in the current data transmission period. According to
The specific way to calculate N _ subband is well known to those skilled in the art, and the embodiment of the present invention is not described in detail.
In the method for improving the data transmission rate of the terminal provided by the embodiment of the invention, in the data transmission process, the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service is monitored in real time in each data transmission period, and when the actual data transmission rate is lower, the frequency band resource is reallocated for the terminal in a sub-band expansion or preemption mode, so that the data transmission rate of the terminal is improved.
Based on any one of the foregoing embodiments, further, the performing frequency band preemption on the first terminal specifically includes:
judging whether the data transmission rates of the first terminal in a plurality of continuous data transmission periods before the current data transmission period are all lower than a guaranteed bit rate;
and if the data transmission rates of the first terminal in a plurality of continuous data transmission periods before the current data transmission period are lower than the guaranteed bit rate, scheduling the frequency band resource occupied by the second terminal to the first terminal.
Specifically, in the process of performing bandwidth preemption on the first terminal, it is further required to determine whether the data transmission rates of the first terminal in a plurality of consecutive data transmission periods before the current data transmission period are all lower than the guaranteed bit rate.
And when the data transmission rates of the first terminal in a plurality of continuous data transmission periods before the current data transmission period are all lower than the guaranteed bit rate, scheduling the frequency band resource occupied by the second terminal to the first terminal. So as to avoid misjudgment caused by network instability. The number of the continuous data transmission cycles can be set according to actual conditions.
And if the data transmission rates of the first terminal in a plurality of continuous data transmission periods before the current data transmission period are not all lower than the guaranteed bit rate, the frequency band preemption is not performed any more.
In the method for improving the data transmission rate of the terminal provided by the embodiment of the invention, in the data transmission process, the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service is monitored in real time in each data transmission period, and when the actual data transmission rate is lower, the frequency band resource is reallocated for the terminal in a sub-band expansion or preemption mode, so that the data transmission rate of the terminal is improved.
Based on any of the above embodiments, further, the priority of the second terminal is lower than the priority of the first terminal, and a duration of the data transmission rate of the second terminal in a preset time period before the current time being lower than the guaranteed bit rate is smaller than a preset threshold.
Specifically, in the process of performing bandwidth preemption on the first terminal, the second terminal whose bandwidth resource is preempted needs to satisfy the following condition to ensure that the data transmission rate of the first terminal can be increased after performing bandwidth preemption on the first terminal.
The conditions are as follows: the priority of the second terminal is lower than that of the first terminal, and the duration of the data transmission rate of the second terminal in a preset time period before the current time, which is lower than the guaranteed bit rate, is less than a preset threshold. The preset time period and the preset threshold value can be specifically set according to actual conditions. For example, the preset time period may be set to 10 PDCCH periods, and accordingly, the preset threshold may be set to 2 PDCCH periods.
In the method for improving the data transmission rate of the terminal provided by the embodiment of the invention, in the data transmission process, the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service is monitored in real time in each data transmission period, and when the actual data transmission rate is lower, the frequency band resource is reallocated for the terminal in a sub-band expansion or preemption mode, so that the data transmission rate of the terminal is improved.
Based on any of the above embodiments, fig. 2 is a schematic logic flow diagram for improving the terminal data transmission rate according to an embodiment of the present invention, and the following describes the method according to an embodiment of the present invention with reference to fig. 2 by using a specific example, as shown in fig. 2, the specific steps are as follows:
1. when initial resource allocation is carried out for the jth service of the ith terminal, according to the selected average MCSinitAcquiring the number N of initial resource occupation at the current PDCCH period (transmission period of each data packet) and the subscription guarantee rate of the service of the terminalData_initIs it checked every scheduling period whether the rate of terminal i satisfies the GBR rate?
2. If the GBR rate can be satisfied, the number and the positions of the current sub-band allocation are maintained, and the process is finished.
3. If not, calculating whether the system has residual sub-band and the residual sub-band is in the terminal sub-band expandable zone, and defining the terminal sub-band expandable zone as a continuous part larger than the sequence number of the last sub-band currently allocated. If the condition is satisfied, the next step is carried out, and if the condition is not satisfied, the step 6 is carried out.
4. Updating the average rate of the jth service of the ith terminal to be
Wherein the content of the first and second substances,
is the average rate of the service j of the ith terminal at the time TCFor the filter factor, T is the same filter factor as used in the MCS calculationPDCCHIs a PDCCH period, BiNumber of bits for correct transmission of data in PDCCH period, BL2HeadIs L2 head length.
If j is GBR traffic, if
The modulation coding mode is the average value of MCS values of continuous L PDCCH periods
If it is
The number of sub-bands Δ N that needs to be increasedaddComprises the following steps:
if it is
Then according to
The number of subbands N _ subbands needed to achieve the GBR rate is calculated (this method is well known in the art and is not described in detail in this patent).
N_subband_now＝max{N_subband,NData_init+1}
ΔNadd＝N_subband_now-NData_init
5. Looking up Δ N below allocated resourcesaddAnd allocating N _ sub _ now sub bands to the terminal together, and ending.
6. Judging whether the ith terminal is high priority, if so, recording the duration (actually, the number of continuous L PDCCH (physical downlink control channel) periods which do not reach the GBR rate) Below _ Gbr _ Num which does not reach the GBR rate, and if the Below _ Gbr _ Num is lower than the threshold Below _ Gbr _ Thrd, turning to the end;
7. if Below _ Gbr _ Num is higher than the threshold Below _ Gbr _ Thrd, the terminal i preempts the priority (set as non-preemptible service) and the terminal with Below _ Gbr _ Num lower than the threshold Below _ Gbr _ Thrd occupies the number of subbands until N _ subbands are obtained, and the calculation method of N _ subbands _ now is the same as that in step 4.
Fig. 3 is a schematic diagram of a network-side device according to an embodiment of the present invention, and as shown in fig. 3, a network-side device according to an embodiment of the present invention is configured to perform the method described in any of the foregoing embodiments, and specifically includes a rate monitoring module 301 and a band adjusting module 302, where:
the rate monitoring module 301 is configured to obtain a current data transmission rate of the first terminal in a current data transmission period; the bandwidth adjusting module 302 is configured to, if it is determined that the current data transmission rate of the first terminal is lower than the guaranteed bit rate, reallocate bandwidth resources to the first terminal according to the priority of the first terminal and the remaining bandwidth resources in the system.
Embodiments of the present invention provide a network side device, configured to execute the method described in any one of the above embodiments, where specific steps of executing the method described in any one of the above embodiments by the network side device provided in this embodiment are the same as those in the corresponding embodiment described above, and are not described herein again.
In the method for improving the data transmission rate of the terminal provided by the embodiment of the invention, in the data transmission process, the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service is monitored in real time in each data transmission period, and when the actual data transmission rate is lower, the frequency band resource is reallocated for the terminal in a sub-band expansion or preemption mode, so that the data transmission rate of the terminal is improved.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 4, the electronic device includes: a processor (processor)401, a memory (memory)402, a bus 403, and computer programs stored on the memory and executable on the processor.
Wherein, the processor 401 and the memory 402 complete the communication with each other through the bus 403;
the processor 401 is configured to call and execute the computer program in the memory 402 to perform the steps in the above method embodiments, including:
acquiring the current data transmission rate of a first terminal in a current data transmission period;
and if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, allocating the frequency band resources for the first terminal again according to the priority of the first terminal and the residual frequency band resources in the system.
In addition, the logic instructions in the memory may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Embodiments of the present invention provide a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the steps of the above-described method embodiments, for example, including:
acquiring the current data transmission rate of a first terminal in a current data transmission period;
and if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, allocating the frequency band resources for the first terminal again according to the priority of the first terminal and the residual frequency band resources in the system.
An embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the steps in the above method embodiments, for example, including:
acquiring the current data transmission rate of a first terminal in a current data transmission period;
and if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, allocating the frequency band resources for the first terminal again according to the priority of the first terminal and the residual frequency band resources in the system.
The above-described embodiments of the apparatuses and devices are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for increasing data transmission rate of a terminal, comprising:
acquiring the current data transmission rate of a first terminal in a current data transmission period;
and if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, allocating the frequency band resources for the first terminal again according to the priority of the first terminal and the residual frequency band resources in the system.
2. The method of claim 1, wherein the step of reallocating the frequency band resources to the first terminal according to the priority of the first terminal and the remaining frequency band resources in the system comprises:
according to the current data transmission rate of the first terminal, the average value of MCS levels authorized to the first terminal by a plurality of continuous data transmission periods before the current data transmission period, and the initial MCS level and the initial sub-band number allocated to the first terminal in the current data transmission period, determining the number of sub-bands required to be added to the first terminal;
if the priority of the first terminal is judged and known to be high priority and the frequency band resource in the system can be expanded, the frequency band of the first terminal is expanded; when the number of idle sub-bands in the system is greater than or equal to the number of sub-bands which need to be added for the first terminal, and the idle sub-bands in the system are continuous with the initial sub-bands which have been allocated for the first terminal in the current data transmission period, the frequency band resources in the system can be expanded, otherwise, the frequency band resources in the system cannot be expanded.
3. The method of claim 2, wherein after determining the number of subbands needed to be added for the first terminal, the method further comprises:
and if the priority of the first terminal is judged to be high priority and the frequency band resource in the system can not be expanded, performing frequency band preemption on the first terminal.
4. The method of claim 2, wherein after determining the number of subbands needed to be added for the first terminal, the method further comprises:
and if the priority of the first terminal is judged to be low priority and the number of idle sub-bands in the system is more than or equal to the number of sub-bands needing to be added to the first terminal, performing band expansion on the first terminal.
5. The method according to claim 2, wherein the determining, according to the current data transmission rate of the first terminal, the number of subbands to be added to the first terminal according to an average value of MCS levels granted to the first terminal by a plurality of consecutive data transmission periods before the current data transmission period, and an initial MCS level and an initial number of subbands allocated to the first terminal in the current data transmission period, specifically comprises:
judging the size relationship between the average value and the initial MCS level;
if the average value is judged to be larger than or equal to the initial MCS level, calculating the number of sub-bands which need to be added to the first terminal according to a first preset formula, wherein the first preset formula is as follows:
wherein, Δ NaddIndicating the number of subbands that need to be added for the first terminal, GBR indicating the guaranteed bit rate,
indicating the current data transmission rate, N, of the first terminalData_initRepresenting the initial sub-band number allocated to the first terminal in the current data transmission period;
if the average value is judged to be smaller than the initial MCS level, calculating the number of sub-bands which need to be added to the first terminal according to a second preset formula, wherein the second preset formula is as follows:
ΔNadd＝max{N_subband,NData_init+1}-NData_init
wherein, Δ NaddIndicating the number of sub-bands required to be added to the first terminal, N _ sub-band indicating the total number of sub-bands required for the data transmission speed of the first terminal to reach the guaranteed bit rate, calculated according to the average value, NData_initIndicating the initial number of subbands assigned to the first terminal in the current data transmission period.
6. The method according to claim 3, wherein the pre-empting the frequency band of the first terminal specifically includes:
judging whether the data transmission rates of the first terminal in a plurality of continuous data transmission periods before the current data transmission period are all lower than a guaranteed bit rate;
and if the data transmission rates of the first terminal in a plurality of continuous data transmission periods before the current data transmission period are lower than the guaranteed bit rate, scheduling the frequency band resource occupied by the second terminal to the first terminal.
7. The method of claim 6, wherein the priority of the second terminal is lower than the priority of the first terminal, and a duration of time during which the data transmission rate of the second terminal in a preset time period before the current time is lower than the guaranteed bit rate is less than a preset threshold.
8. A network-side device, comprising:
the rate monitoring module is used for acquiring the current data transmission rate of the first terminal in the current data transmission period;
and the frequency band adjusting module is used for reallocating the frequency band resources to the first terminal according to the priority of the first terminal and the residual frequency band resources in the system if the current data transmission rate of the first terminal is judged to be lower than the guaranteed bit rate.
9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method for increasing the data transmission rate of a terminal according to any one of claims 1 to 7.
10. A non-transitory computer readable storage medium, having a computer program stored thereon, wherein the computer program, when being executed by a processor, implements the steps of the method for increasing the data transmission rate of a terminal according to any one of claims 1 to 7.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026577A (en) * | 2007-01-19 | 2007-08-29 | 北京邮电大学 | Scheduling method for ensuring time delay stability of non-real-time business data packet for OFDMA system |
| CN101635952A (en) * | 2008-07-21 | 2010-01-27 | 大唐移动通信设备有限公司 | Method and device for controlling congestion in mobile communication system |
| JP2010141893A (en) * | 2008-12-12 | 2010-06-24 | Ntt Docomo Inc | Resource scheduling method in radio communication system, and base station |
| US20120302272A1 (en) * | 2011-05-24 | 2012-11-29 | Renesas Mobile Corporation | Resource Allocation Control |
| CN104469957A (en) * | 2014-12-25 | 2015-03-25 | 中科晶上（苏州）信息技术有限公司 | LTE system base station device downlink resource distribution method and device |
| CN104602355A (en) * | 2015-02-13 | 2015-05-06 | 哈尔滨工业大学 | Method for scheduling mixed services in LTE (long term evolution) system |
| CN106455101A (en) * | 2016-10-31 | 2017-02-22 | 中国联合网络通信集团有限公司 | Wireless resource scheduling method and apparatus |
-
2019
- 2019-07-05 CN CN201910604067.9A patent/CN112188513B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026577A (en) * | 2007-01-19 | 2007-08-29 | 北京邮电大学 | Scheduling method for ensuring time delay stability of non-real-time business data packet for OFDMA system |
| CN101635952A (en) * | 2008-07-21 | 2010-01-27 | 大唐移动通信设备有限公司 | Method and device for controlling congestion in mobile communication system |
| JP2010141893A (en) * | 2008-12-12 | 2010-06-24 | Ntt Docomo Inc | Resource scheduling method in radio communication system, and base station |
| US20120302272A1 (en) * | 2011-05-24 | 2012-11-29 | Renesas Mobile Corporation | Resource Allocation Control |
| CN104469957A (en) * | 2014-12-25 | 2015-03-25 | 中科晶上（苏州）信息技术有限公司 | LTE system base station device downlink resource distribution method and device |
| CN104602355A (en) * | 2015-02-13 | 2015-05-06 | 哈尔滨工业大学 | Method for scheduling mixed services in LTE (long term evolution) system |
| CN106455101A (en) * | 2016-10-31 | 2017-02-22 | 中国联合网络通信集团有限公司 | Wireless resource scheduling method and apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11711862B1 (en) | 2021-07-15 | 2023-07-25 | T-Mobile Usa, Inc. | Dual connectivity and carrier aggregation band selection |
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