CN112188513B - Method and device for improving data transmission rate of terminal - Google Patents
Method and device for improving data transmission rate of terminal Download PDFInfo
- Publication number
- CN112188513B CN112188513B CN201910604067.9A CN201910604067A CN112188513B CN 112188513 B CN112188513 B CN 112188513B CN 201910604067 A CN201910604067 A CN 201910604067A CN 112188513 B CN112188513 B CN 112188513B
- Authority
- CN
- China
- Prior art keywords
- terminal
- data transmission
- frequency band
- transmission rate
- current data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
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 the first terminal in the current data transmission period; if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, the frequency band resources are allocated to 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, 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 resources are 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 improving a data transmission rate of a terminal.
Background
An industry private network communication system is a communication system specially designed for different industries, for example, an LTE230 system applied to industries such as power and petroleum, and has many characteristics compared with a common macro network communication system, such as: the frequency band is narrow, the frequency point is low, the speed is low, and the capacity is high. The services supported by private network communication systems are generally low in rate and less sensitive to delay. The existing LTE macro network communication system is mainly designed to meet the requirements of broadband mobile Internet, and provides high-bandwidth and high-response-speed Internet surfing experience for users. LTE macro network communication systems obviously cannot meet the requirements of industry private network applications, and therefore, there is a need to develop private network communication systems that are applicable to specific industries.
In the prior art, the narrowband internet of things (NB-IoT) is mainly characterized in that: the number of terminals is numerous, the energy-saving requirement of the terminals is high, the primary small data packet is mainly used, and the data packet can be in a non-IP format. In designing a private network communication system, related technologies in NB-IoT are introduced, and in the user plane, in view 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 grant, the band resources specified by the grant are used for a long time, and the time interval for reporting channel quality reports and buffer reports by a terminal is increased. Thereby meeting the requirements of industry private network application.
However, if the low priority terminal performs data transmission first and occupies more frequency domain resources (i.e. the number of subbands), the high priority terminal accessed later will not reach guaranteed bit service rate (GBR) for a long time because the allocated remaining frequency domain resources are always insufficient. Meanwhile, when the frequency domain resource obtained by the high-priority terminal is higher than the preset lowest frequency domain resource, the high-priority terminal cannot preempt the frequency domain resource of the low-priority terminal even if GBR cannot be reached 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 lower data transmission rate of the terminal.
In order to solve the above technical problems, in one aspect, an embodiment of the present invention provides a method for improving a data transmission rate of a terminal, including:
acquiring the current data transmission rate of the first terminal in the current data transmission period;
if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, the frequency band resources are allocated to 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, respectively authorizing an average value of MCS levels of the first terminal to a plurality of continuous data transmission periods before the current data transmission period, and determining an initial MCS level and an initial subband number allocated to the first terminal in the current data transmission period, wherein the subband number needs to be increased for the first terminal;
if the priority of the first terminal is judged to be high and the frequency band resource in the system can be expanded, carrying out frequency band expansion on the first terminal; and when the number of the idle sub-bands in the system is greater than or equal to the number of the sub-bands which need to be increased for the first terminal, and the idle sub-bands in the system are continuous with the initial sub-bands which are already 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 to be added to the first terminal, the method further includes:
and if the priority of the first terminal is judged to be high and the frequency band resource in the system is inextensible, carrying out frequency band preemption on the first terminal.
Further, after determining the number of subbands to be added to the first terminal, the method further includes:
if the priority of the first terminal is judged to be low, and the number of idle sub-bands in the system is more than or equal to the number of sub-bands which need to be added for the first terminal, the first terminal is subjected to band expansion.
Further, the determining, according to the current data transmission rate of the first terminal, the average value of the MCS levels respectively authorized to the first terminal in a plurality of continuous data transmission periods before the current data transmission period, and the initial MCS level and the initial subband number allocated to the first terminal in the current data transmission period, the subband number to be added to the first terminal specifically includes:
judging the size relation between the average value and the initial MCS level;
if the average value is larger than or equal to the initial MCS level, calculating the number of sub-bands which need to be added for the first terminal according to a first preset formula, wherein the first preset formula is as follows:
wherein DeltaN add Indicating the number of subbands that need to be increased for the first terminal, GBR indicates a guaranteed bit rate,indicating the current data transmission rate of the first terminal, N Data_init Representing the initial sub-band number allocated to the first terminal in the current data transmission period;
if the average value is smaller than the initial MCS level, calculating the number of sub-bands required to be added for the first terminal according to a second preset formula, wherein the second preset formula is as follows:
ΔN add ＝max{N_subband,N Data_init +1}-N Data_init
wherein DeltaN add Indicating the number of subbands to be added to the first terminal, N_subband indicating the total number of subbands required for the data transmission rate of the first terminal to reach the guaranteed bit rate calculated from said average value, N Data_init Indicating the initial number of subbands assigned to the first terminal in the current data transmission period.
Further, the performing the 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 lower than the guaranteed bit rate or not;
and if judging that 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 resources occupied by the second terminal to the first terminal.
Further, the priority of the second terminal is lower than the priority of the first terminal, and the duration that the data transmission rate of the second terminal in a preset time period before the current moment is lower than the guaranteed bit rate is smaller 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 adjustment module is used for re-distributing 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 lower than the guaranteed bit rate.
In still another aspect, an embodiment of the present invention provides an electronic device, including: the computer program comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the steps of the method when executing the computer program.
In yet another aspect, embodiments of the present invention provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above-described method.
According to the method and the device for improving the data transmission rate of the terminal, 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 resources are 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 of a method for improving a data transmission rate of a terminal according to an embodiment of the present invention;
fig. 2 is a schematic logic flow diagram of improving 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 more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic diagram of a method for improving a data transmission rate of a terminal according to an embodiment of the present invention, as shown in fig. 1, where an execution body of the method is network side equipment, for example, a base station, an MME, etc., and the method includes:
step S101, acquiring the current data transmission rate of the first terminal in the current data transmission period.
Specifically, in the process of data transmission of the terminal, the network side equipment monitors the actual transmission rate of each service of the current terminal in real time in each data transmission period, and when one terminal simultaneously carries out a plurality of services, the average data transmission rate of the service with the highest priority is used as the data transmission rate of the terminal.
In the current data transmission period, first, the current data transmission rate of the first terminal is acquired.
For example, the average data transmission rate of the j-th service of the i-th terminal is calculated as follows:
wherein, the liquid crystal display device comprises a liquid crystal display device,for the average data transmission rate, T, of the jth service of the ith terminal at the moment T C For the filtering factor, it is the same as the filtering factor used in MCS (modulation and coding strategy) level calculation, T PDCCH A data transmission period, a dataThe transmission period is one PDCCH period (scheduling period of physical downlink control channel), B i B for the number of bits correctly transmitted for data in PDCCH period L2Head Is L2 head length.
Step S102, if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, the frequency band resources are allocated to the first terminal again according to the priority of the first terminal and the residual frequency band resources 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 current number and position of sub-band allocation are maintained, and no adjustment is required for sub-band resources of the first terminal.
If the current data transmission rate of the first terminal is smaller than the guaranteed bit rate and GBR is not satisfied, the band resources are allocated to the first terminal again according to the priority of the first terminal and the residual band resources in the system.
For example, band expansion or band preemption may be initiated for the first terminal to implement adjustment of the subband resources of the first terminal.
In the method for improving the data transmission rate of the terminal, each data transmission period monitors the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service in real time in the data transmission process, and when the actual data transmission rate is lower, the frequency band resources are 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 reallocating the band resources for the first terminal according to the priority of the first terminal and the remaining band resources in the system specifically includes:
according to the current data transmission rate of the first terminal, respectively authorizing an average value of MCS levels of the first terminal to a plurality of continuous data transmission periods before the current data transmission period, and determining an initial MCS level and an initial subband number allocated to the first terminal in the current data transmission period, wherein the subband number needs to be increased for the first terminal;
if the priority of the first terminal is judged to be high and the frequency band resource in the system can be expanded, carrying out frequency band expansion on the first terminal; and when the number of the idle sub-bands in the system is greater than or equal to the number of the sub-bands which need to be increased for the first terminal, and the idle sub-bands in the system are continuous with the initial sub-bands which are already 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 industry private network on reducing terminal power consumption and reducing system overhead, after resources are allocated to a terminal once, the number of allocated resources is determined by a preset initial modulation and coding mode and a guaranteed bit rate of a service for a long time, and in the actual terminal service process, a channel is inconsistent with the initial modulation and coding mode, so that an actual transmission rate is different from 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 above technical problems, in the embodiment of the present invention, in the process of adjusting the subband resources of the first terminal, the specific manner of adjusting the subband resources 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 resources 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 in a plurality of continuous data transmission periods before the current data transmission period, and the initial MCS level and the initial subband number allocated to the first terminal in the current data transmission period, the subband number which needs to be increased for the first terminal is determined.
Then, if the priority of the first terminal is high and the frequency band resource in the system can be expanded, carrying out frequency band expansion 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 increased for the first terminal, and the idle sub-bands in the system are continuous with the initial sub-bands which are already 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, the sub-bands are kept continuous after the frequency band expansion is carried out for the first terminal, and interference is avoided.
For example, the first terminal currently occupies 3 subbands, and the first terminal needs 5 subbands in total to reach the guaranteed bit rate through calculation, and thus needs to add 2 subbands to the first terminal. If the number of the idle sub-bands in the system is greater than or equal to 2 and the idle sub-bands and the first terminal currently occupy 3 sub-bands, the first terminal can be expanded in frequency band, namely, 2 sub-bands which are continuous with the 3 sub-bands currently occupied by 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, each data transmission period monitors the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service in real time in the data transmission process, and when the actual data transmission rate is lower, the frequency band resources are 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, after determining the number of subbands that need to be increased for the first terminal, the method further includes:
and if the priority of the first terminal is judged to be high and the frequency band resource in the system is inextensible, carrying out frequency band preemption on the first terminal.
Specifically, after determining the number of sub-bands that need to be added to the first terminal, if the priority of the first terminal is high and the frequency band resources in the system are not expandable, the first terminal is subjected to frequency band preemption.
The band preemption refers to scheduling the sub-band occupied by the terminal with other priority lower than that of the first terminal to the first terminal for use.
The non-distensible frequency band resources in a system include two cases: 1. the number of idle subbands in the system is smaller than the number of subbands that need to be added for the first terminal, e.g. 2 subbands need to be added for the first terminal, but the system has only 1 idle subband. 2. The number of idle subbands in the system is greater than or equal to the number of subbands to be added to the first terminal, but the idle subbands in the system are discontinuous from the initial subbands already allocated to the first terminal in the current data transmission period, for example, 2 subbands need to be added to the first terminal, 3 idle subbands in the system are discontinuous from the initial subbands already allocated to the first terminal in the current data transmission period, and the idle subbands in the system are 3.
In the method for improving the data transmission rate of the terminal, each data transmission period monitors the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service in real time in the data transmission process, and when the actual data transmission rate is lower, the frequency band resources are 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, after determining the number of subbands that need to be increased for the first terminal, the method further includes:
if the priority of the first terminal is judged to be low, and the number of idle sub-bands in the system is more than or equal to the number of sub-bands which need to be added for the first terminal, the first terminal is subjected to band expansion.
Specifically, after determining the number of subbands to be added to the first terminal, if the priority of the first terminal is low, at this time, whether the extended subbands are continuous is not considered any more, and if the number of idle subbands in the system is greater than or equal to the number of subbands to be added to the first terminal, the first terminal can be subjected to band extension. Thereby increasing the data transmission rate of the first terminal.
If there is not enough bandwidth resource in the system, since the priority of the first terminal is low, at this time, the bandwidth preemption is not performed any more. Thereby, the data transmission rate of the terminal with high priority is improved, and the data transmission rate of the terminal with low priority is also considered.
In the method for improving the data transmission rate of the terminal, each data transmission period monitors the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service in real time in the data transmission process, and when the actual data transmission rate is lower, the frequency band resources are 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 determining, according to the current data transmission rate of the first terminal, the average value of the MCS levels respectively authorized to the first terminal for a plurality of consecutive data transmission periods before the current data transmission period, and the initial MCS level and the 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 relation between the average value and the initial MCS level;
if the average value is larger than or equal to the initial MCS level, calculating the number of sub-bands which need to be added for the first terminal according to a first preset formula, wherein the first preset formula is as follows:
wherein DeltaN add Indicating the number of subbands that need to be increased for the first terminal, GBR indicates a guaranteed bit rate,indicating the current data transmission rate of the first terminal, N Data_init Representing the initial sub-band number allocated to the first terminal in the current data transmission period;
if the average value is smaller than the initial MCS level, calculating the number of sub-bands required to be added for the first terminal according to a second preset formula, wherein the second preset formula is as follows:
ΔN add ＝max{N_subband,N Data_init +1}-N Data_init
wherein DeltaN add Indicating the number of subbands to be added to the first terminal, N_subband indicating the total number of subbands required for the data transmission rate of the first terminal to reach the guaranteed bit rate calculated from said average value, N Data_init Indicating the initial number of subbands assigned to the first terminal in the current data transmission period.
Specifically, in determining the number of subbands that need to be increased for the first terminal, it is necessary to consider whether the current channel quality of the first terminal matches the initial MCS level allocated for the first terminal in the current data transmission period.
Firstly, obtaining average value of MCS levels respectively authorized to a first terminal in a plurality of continuous data transmission periods before a current data transmission periodThe number of continuous data transmission periods can be set according to practical situations.
Then, average value of MCS levels respectively authorized to the first terminal in a plurality of continuous data transmission periods before the current data transmission period is compared with initial MCS level MCS allocated to the first terminal in the current data transmission period init Is a size relationship of (a).
If it isThe number of sub-bands which need to be added for the first terminal is calculated according to a first preset formula, wherein the first preset formula is as follows:
wherein DeltaN add Indicating the number of subbands that need to be increased for the first terminal, GBR indicates a guaranteed bit rate,indicating the current data transmission rate of the first terminal, N Data_init Indicating the initial number of subbands assigned to the first terminal in the current data transmission period.
If it isThe number of sub-bands to be added to the first terminal is calculated according to a second preset formula, which is as follows:
ΔN add ＝max{N_subband,N Data_init +1}-N Data_init
wherein DeltaN add Indicating the number of subbands that need to be added for the first terminal, N_subband indicates based on the averageThe calculated total number of sub-bands required for the data transmission speed of the first terminal to reach the guaranteed bit rate, N Data_init Indicating the initial number of subbands assigned to the first terminal in the current data transmission period. According to->The specific manner of calculating the n_subband is well known to those skilled in the art, and the embodiments of the present invention will not be described in detail.
In the method for improving the data transmission rate of the terminal, each data transmission period monitors the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service in real time in the data transmission process, and when the actual data transmission rate is lower, the frequency band resources are 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 the 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 lower than the guaranteed bit rate or not;
and if judging that 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 resources occupied by the second terminal to the first terminal.
Specifically, in the process of performing the band 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 rate of the first terminal in a plurality of continuous data transmission periods before the current data transmission period is 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 unstable network. The number of continuous data transmission periods can be set according to practical situations.
If the data transmission rate of the first terminal in several consecutive data transmission periods before the current data transmission period is not all lower than the guaranteed bit rate, no band preemption is performed anymore.
In the method for improving the data transmission rate of the terminal, each data transmission period monitors the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service in real time in the data transmission process, and when the actual data transmission rate is lower, the frequency band resources are 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 priority of the second terminal is lower than the priority of the first terminal, and a duration of the second terminal in a preset period of time before the current time when the data transmission rate is lower than the guaranteed bit rate is less than a preset threshold.
Specifically, in the process of performing the band preemption on the first terminal, the second terminal of the preempted band resource needs to meet the following conditions to ensure that the data transmission rate of the first terminal can be improved after the band preemption is performed 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 that the data transmission rate of the second terminal in a preset time period before the current moment is lower than the guaranteed bit rate is smaller than a preset threshold. The preset time period and the preset threshold value can be specifically set according to practical situations. For example, the preset 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, each data transmission period monitors the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service in real time in the data transmission process, and when the actual data transmission rate is lower, the frequency band resources are 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, fig. 2 is a schematic logic flow diagram of improving a data transmission rate of a terminal according to an embodiment of the present invention, and a specific example is used to describe a method according to an embodiment of the present invention with reference to fig. 2, where, as shown in fig. 2, specific steps are as follows:
1. when initial resource allocation is carried out for the j-th service of the i-th terminal, the initial resource allocation is carried out according to the selected average MCS init The initial resource occupation number N is obtained by the current PDCCH period (transmission period of each data packet) of the terminal and the subscription guarantee rate of the service Data_init Is the rate of terminal i satisfying GBR rate checked every scheduling period?
2. If the GBR rate can be met, the number and the position of the current sub-band allocation are maintained, and the process goes to the end.
3. If the GBR rate is not satisfied, it is calculated whether the system has remaining subbands and the remaining subbands are in this final subband extensible zone, which is defined as a sequential portion that is greater than the sequence number of the last subband currently allocated. If yes, go to the next step, and if not, go to step 6.
4. Updating the average rate of the jth service of the ith terminal to be the average rate of the jth service of the ith terminal every data transmission period
Wherein, the liquid crystal display device comprises a liquid crystal display device,for the average rate, T, of the traffic j of the ith terminal at time T C For the filtering factor, T is the same as that used in MCS calculation PDCCH For PDCCH period, B i B for the number of bits correctly transmitted for data in PDCCH period L2Head Is L2 head length.
If j is GBR traffic, ifThe modulation coding mode is the average value of MCS values of L continuous PDCCH periods +.>If->Then an increased number of subbands deltan is required add The method comprises the following steps:
if it isThen according to->The number of subbands n_subbands required to reach 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,N Data_init +1}
ΔN add ＝N_subband_now-N Data_init
5. Looking up an under allocated resources add The n_subband_now subbands are allocated to this terminal together, going to end.
6. Judging whether the ith terminal is of high priority, if so, recording the duration of not reaching the GBR rate (the number of continuous L PDCCH periods which can not reach the GBR rate actually) by Below_ Gbr _Num, and if Below_ Gbr _Num is lower than a threshold Below_ Gbr _Thrd, turning to end;
7. if below_ Gbr _num is higher than the threshold below_ Gbr _thrd, the terminal i preempts the priority (set as non-preemptable traffic) and below_ Gbr _num is lower than the threshold below_ Gbr _thrd by the number of sub-bands occupied by the terminal until n_subband_now sub-bands are obtained, and the method of calculating n_subband_now is the same as 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, an embodiment of the present invention provides a network side device, configured to perform a method described in any one 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 band adjustment 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 band resources to the first terminal according to the priority of the first terminal and the remaining band resources in the system.
An embodiment of the present invention provides a network side device, which is configured to execute the method described in any one of the foregoing embodiments, and specific steps of executing the method described in the foregoing embodiment by using the network side device provided by this embodiment are the same as those of the foregoing corresponding embodiment, and are not repeated herein.
In the method for improving the data transmission rate of the terminal, each data transmission period monitors the difference between the actual transmission rate of the current terminal or each service and the guaranteed bit rate required by the service in real time in the data transmission process, and when the actual data transmission rate is lower, the frequency band resources are 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, as shown in fig. 4, where the device includes: a processor 401, a memory 402, a bus 403, and a computer program stored on the memory and executable on the processor.
Wherein the processor 401 and the memory 402 complete communication with each other through the bus 403;
the processor 401 is configured to invoke and execute a computer program in the memory 402 to perform the steps of the method embodiments described above, including, for example:
acquiring the current data transmission rate of the first terminal in the current data transmission period;
if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, the frequency band resources are allocated to the first terminal again according to the priority of the first terminal and the residual frequency band resources in the system.
Further, the logic instructions in the memory described above may be implemented in the form of software functional units and stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform 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, random Access Memory), a magnetic disk, or an optical disk, or 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 method embodiments described above, for example comprising:
acquiring the current data transmission rate of the first terminal in the current data transmission period;
if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, the frequency band resources are allocated to the first terminal again according to the priority of the first terminal and the residual frequency band resources in the system.
Embodiments of the present invention provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method embodiments described above, for example, including:
acquiring the current data transmission rate of the first terminal in the current data transmission period;
if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, the frequency band resources are allocated to the first terminal again according to the priority of the first terminal and the residual frequency band resources in the system.
The embodiments of the apparatus and devices described above are merely illustrative, wherein the elements described as separate elements may or may not be physically separate, and elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A method for improving a data transmission rate of a terminal, comprising:
acquiring the current data transmission rate of the first terminal in the current data transmission period;
if the current data transmission rate of the first terminal is lower than the guaranteed bit rate, the frequency band resource is allocated to the first terminal again according to the priority of the first terminal and the residual frequency band resource in the system;
the reallocating the frequency band resource for the first terminal according to the priority of the first terminal and the residual frequency band resource in the system specifically comprises the following steps:
according to the current data transmission rate of the first terminal, respectively authorizing an average value of MCS levels of the first terminal to a plurality of continuous data transmission periods before the current data transmission period, and determining an initial MCS level and an initial subband number allocated to the first terminal in the current data transmission period, wherein the subband number needs to be increased for the first terminal;
if the priority of the first terminal is judged to be high and the frequency band resource in the system can be expanded, carrying out frequency band expansion on the first terminal; and when the number of the idle sub-bands in the system is greater than or equal to the number of the sub-bands which need to be increased for the first terminal, and the idle sub-bands in the system are continuous with the initial sub-bands which are already 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.
2. The method for increasing the data transmission rate of a terminal according to claim 1, wherein after the determining the number of subbands that need to be increased for the first terminal, further comprises:
and if the priority of the first terminal is judged to be high and the frequency band resource in the system is inextensible, carrying out frequency band preemption on the first terminal.
3. The method for increasing the data transmission rate of a terminal according to claim 1, wherein after the determining the number of subbands that need to be increased for the first terminal, further comprises:
if the priority of the first terminal is judged to be low, and the number of idle sub-bands in the system is more than or equal to the number of sub-bands which need to be added for the first terminal, the first terminal is subjected to band expansion.
4. The method for increasing the data transmission rate of a terminal according to claim 1, wherein the determining the number of subbands to be added to the first terminal according to the current data transmission rate of the first terminal, the average value of the MCS levels respectively granted to the first terminal for a number of consecutive data transmission periods before the current data transmission period, and the initial MCS level and the initial number of subbands allocated to the first terminal in the current data transmission period specifically includes:
judging the size relation between the average value and the initial MCS level;
if the average value is larger than or equal to the initial MCS level, calculating the number of sub-bands which need to be added for the first terminal according to a first preset formula, wherein the first preset formula is as follows:
wherein DeltaN add Indicating the number of subbands that need to be increased for the first terminal, GBR indicates a guaranteed bit rate,indicating the current data transmission rate of the first terminal, N Data_init Representing the initial sub-band number allocated to the first terminal in the current data transmission period;
if the average value is smaller than the initial MCS level, calculating the number of sub-bands required to be added for the first terminal according to a second preset formula, wherein the second preset formula is as follows:
ΔN add ＝max{N_subband,N Data_init +1}-N Data_init
wherein DeltaN add Indicating the number of subbands to be added to the first terminal, N_subband indicating the total number of subbands required for the data transmission rate of the first terminal to reach the guaranteed bit rate calculated from said average value, N Data_init Indicating the initial number of subbands assigned to the first terminal in the current data transmission period.
5. The method for improving the data transmission rate of the terminal according to claim 2, wherein the performing the 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 lower than the guaranteed bit rate or not;
and if judging that 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 resources occupied by the second terminal to the first terminal.
6. The method according to claim 5, wherein the priority of the second terminal is lower than the priority of the first terminal, and a duration of the second terminal in a preset period of time before the current time when the data transmission rate is lower than the guaranteed bit rate is less than a preset threshold.
7. 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;
the frequency band adjustment module is used for re-distributing 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 judging that the current data transmission rate of the first terminal is lower than the guaranteed bit rate;
the band adjustment module is specifically configured to, in a process of reallocating band resources to the first terminal according to the priority of the first terminal and remaining band resources in the system:
according to the current data transmission rate of the first terminal, respectively authorizing an average value of MCS levels of the first terminal to a plurality of continuous data transmission periods before the current data transmission period, and determining an initial MCS level and an initial subband number allocated to the first terminal in the current data transmission period, wherein the subband number needs to be increased for the first terminal;
if the priority of the first terminal is judged to be high and the frequency band resource in the system can be expanded, carrying out frequency band expansion on the first terminal; and when the number of the idle sub-bands in the system is greater than or equal to the number of the sub-bands which need to be increased for the first terminal, and the idle sub-bands in the system are continuous with the initial sub-bands which are already 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.
8. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the computer program, realizes the steps of the method of improving the data transmission rate of a terminal according to any of claims 1 to 6.
9. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the steps of the method of improving the data transmission rate of a terminal according to any of claims 1 to 6 are implemented when said computer program is executed by a processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604067.9A CN112188513B (en) | 2019-07-05 | 2019-07-05 | Method and device for improving data transmission rate of terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604067.9A CN112188513B (en) | 2019-07-05 | 2019-07-05 | Method and device for improving data transmission rate of terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112188513A CN112188513A (en) | 2021-01-05 |
| CN112188513B true CN112188513B (en) | 2023-10-03 |
Family
ID=73915236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910604067.9A Active CN112188513B (en) | 2019-07-05 | 2019-07-05 | Method and device for improving data transmission rate of terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112188513B (en) |
Families Citing this family (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 |
Citations (6)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8731590B2 (en) * | 2011-05-24 | 2014-05-20 | Broadcom Corporation | Resource allocation control |
-
2019
- 2019-07-05 CN CN201910604067.9A patent/CN112188513B/en active Active
Patent Citations (6)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112188513A (en) | 2021-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4509804B2 (en) | Resource allocation management | |
| US20080304448A1 (en) | System and Method for Dynamic Resource Allocation in Wireless Communications Networks | |
| CN110248417B (en) | Resource allocation method and system for communication service in power Internet of things | |
| HUE027257T2 (en) | Use of supplemental assignments | |
| KR100655939B1 (en) | System and method for allocating resource and user terminal | |
| WO2020029698A1 (en) | Uplink channel resource indication and determination method, and base station, terminal and medium | |
| CN111836371B (en) | Resource selection method, device and terminal | |
| CN115399027A (en) | Resource reservation method, device, equipment and storage medium | |
| CN109314977B (en) | Semi-persistent resource allocation enhancements for V2X communications | |
| CN108029104B (en) | Method and apparatus for configuring Sounding Reference Symbols (SRS) | |
| US10701706B2 (en) | Resource allocation method, apparatus, and system, and base station | |
| US10485006B2 (en) | Judgment method of channel occupancy and judgment device | |
| CN113556785A (en) | Method for controlling service quality flow and related equipment | |
| US9609661B2 (en) | Wireless communication device, wireless communication system, and wireless communication method | |
| CN110831206A (en) | Wireless resource scheduling method and device applied to vehicle-associated heterogeneous network | |
| CN112188513B (en) | Method and device for improving data transmission rate of terminal | |
| CN111107629B (en) | 5G communication method and system | |
| WO2019096280A1 (en) | Resource indication method and device, storage medium, and processor | |
| CN114286348A (en) | Scheduling method, device, electronic equipment and medium for dynamic spectrum sharing network | |
| CN109803365B (en) | Power control method, device, equipment and computer readable storage medium | |
| CN106793094B (en) | Uplink resource allocation method, device and base station | |
| CN110351843B (en) | Resource allocation indicating method, resource allocation obtaining method, base station and user terminal | |
| US8045577B2 (en) | Method and apparatus for allocating wireless resource and wireless network system | |
| CN110557344B (en) | Method for configuring identification information of QoS flow and network equipment | |
| CN108882383B (en) | Modulation and coding scheme-based uplink residual resource allocation method and base station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |