CN116234026A - Network frequency reduction method, device and readable storage medium - Google Patents
Network frequency reduction method, device and readable storage medium Download PDFInfo
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- CN116234026A CN116234026A CN202211732241.6A CN202211732241A CN116234026A CN 116234026 A CN116234026 A CN 116234026A CN 202211732241 A CN202211732241 A CN 202211732241A CN 116234026 A CN116234026 A CN 116234026A
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Abstract
The application provides a network frequency reduction method, a device and a readable storage medium, relates to the technical field of communication, and can solve the problem of poor service experience of a cell after frequency reduction. The method comprises the following steps: under the condition that the target cell meets a first condition, performing network frequency reduction on the target cell by adopting a first frequency reduction mode; otherwise, performing network frequency reduction on the target cell by adopting a second frequency reduction mode; the first frequency reduction mode is used for ensuring the number of the new air interface NR frequency spectrum resources, and the second frequency reduction mode is used for ensuring the number of the long term evolution LTE frequency spectrum resources and the number of the universal mobile telecommunication system UMTS frequency spectrum resources; the first condition includes any one of: the estimated NR uplink traffic is greater than the uplink traffic threshold; the estimated NR downlink traffic is greater than the downlink traffic threshold. The method and the device are used in the process of carrying out network frequency reduction on the cell.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and apparatus for reducing frequency of a network, and a readable storage medium.
Background
Currently, before the frequency reduction of a cell, a network side device may determine whether the cell can perform the frequency reduction based on the resource utilization rate of the cell. For example, if the resource utilization rate of the cell is smaller than the preset resource utilization rate, it is determined that the cell can perform frequency reduction, so that part of resources can be vacated for deploying a New Radio (NR) system.
However, since the NR terminals of different cells have different popularity, determining whether the cell can perform frequency reduction according to the resource utilization of the cell may make the network after frequency reduction unable to meet the actual demands of the cell, thereby resulting in poor service experience of the cell after frequency reduction.
Disclosure of Invention
The application provides a network frequency reduction method, a device and a readable storage medium, which can solve the problem of poor service experience of a cell after frequency reduction.
In order to achieve the above purpose, the present application adopts the following technical scheme:
in a first aspect, the present application provides a network frequency reduction method, including: under the condition that the target cell meets a first condition, performing network frequency reduction on the target cell by adopting a first frequency reduction mode; otherwise, performing network frequency reduction on the target cell by adopting a second frequency reduction mode; the first frequency reduction mode is used for ensuring the number of NR frequency spectrum resources, and the second frequency reduction mode is used for ensuring the number of long term evolution (Long Term Evolution, LTE) frequency spectrum resources and the number of universal mobile telecommunication system (Universal Mobile Telecommunications System, UMTS) frequency spectrum resources; the first condition includes any one of: the estimated NR uplink traffic is greater than the uplink traffic threshold; the estimated NR downlink traffic is greater than the downlink traffic threshold.
Based on the above technical scheme, the network frequency reduction method provided by the embodiment of the application can determine the frequency reduction mode of performing network frequency reduction on the target cell based on the estimated NR uplink traffic or the estimated NR downlink traffic, that is, the network frequency reduction can be performed on the target cell based on the estimated traffic after the NR network is opened, so that the network after frequency reduction can meet the actual demands of the cell, and the service experience of the cell after frequency reduction can be improved.
In a first possible implementation manner of the first aspect, the number of NR spectrum resources in the first frequency reduction manner is greater than the number of NR spectrum resources in the second frequency reduction manner; and/or, the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the first frequency reduction mode is smaller than the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the second frequency reduction mode.
In a second possible implementation manner of the first aspect, performing network frequency reduction on the target cell by using a first frequency reduction manner includes: under the condition that the target parameters are smaller than the corresponding first threshold values, performing network frequency reduction on the target cell by adopting a first frequency reduction mode; wherein the target parameters include: after the network frequency reduction is carried out on the target cell, the downlink traffic, the uplink physical resource quantity and the downlink physical resource quantity of the target cell are estimated.
In a third possible implementation manner of the first aspect, performing network frequency reduction on the target cell by using a second frequency reduction manner includes: under the condition that the target parameters are smaller than the corresponding second threshold values, performing network frequency reduction on the target cell by adopting a second frequency reduction mode; wherein the target parameters include: after the network frequency reduction is carried out on the target cell, estimating the downlink traffic, the uplink physical resource quantity and the downlink physical resource quantity of the target cell; the second threshold value is different from the first threshold value.
In a fourth possible implementation manner of the first aspect, the target parameter is a parameter corrected based on the target traffic; wherein, the target traffic is: traffic to the different frequency LTE cell co-sited with the target cell may be migrated.
In a fifth possible implementation manner of the first aspect, in a case that the target cell meets the first condition, performing network frequency reduction on the target cell by adopting a first frequency reduction manner; otherwise, before the network frequency reduction is performed on the target cell by adopting the second frequency reduction mode, the method further comprises the following steps: estimating NR downlink traffic of the target cell based on the first parameter in the preset time, and estimating NR uplink traffic of the target cell based on the second parameter in the preset time; wherein the first parameter comprises: the number of NR terminals residing in the target cell and the average traffic of the LTE network downlink; the second parameters include: the number of NR terminals camping on the target cell and the average traffic on the LTE network.
In a second aspect, the present application provides a network frequency reduction device, the device including a processing module; the processing module is used for carrying out network frequency reduction on the target cell by adopting a first frequency reduction mode under the condition that the target cell meets a first condition; otherwise, performing network frequency reduction on the target cell by adopting a second frequency reduction mode; the first frequency reduction mode is used for ensuring the number of NR frequency spectrum resources, and the second frequency reduction mode is used for ensuring the number of LTE frequency spectrum resources and the number of UMTS frequency spectrum resources; the first condition includes any one of: the estimated NR uplink traffic is greater than the uplink traffic threshold; the estimated NR downlink traffic is greater than the downlink traffic threshold.
In a first possible implementation manner of the second aspect, the number of NR spectrum resources in the first frequency reduction mode is greater than the number of NR spectrum resources in the second frequency reduction mode; and/or, the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the first frequency reduction mode is smaller than the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the second frequency reduction mode.
In a second possible implementation manner of the second aspect, the processing module is specifically configured to perform network frequency reduction on the target cell by adopting a first frequency reduction manner when the target parameters are all smaller than respective corresponding first threshold values; wherein the target parameters include: after the network frequency reduction is carried out on the target cell, the downlink traffic, the uplink physical resource quantity and the downlink physical resource quantity of the target cell are estimated.
In a third possible implementation manner of the second aspect, the processing module is specifically configured to perform network frequency reduction on the target cell by adopting a second frequency reduction manner when the target parameters are all smaller than respective corresponding second threshold values; wherein the target parameters include: after the network frequency reduction is carried out on the target cell, estimating the downlink traffic, the uplink physical resource quantity and the downlink physical resource quantity of the target cell; the second threshold value is different from the first threshold value.
In a fourth possible implementation manner of the second aspect, the target parameter is a parameter corrected based on the target traffic; wherein, the target traffic is: traffic to the different frequency LTE cell co-sited with the target cell may be migrated.
In a fifth possible implementation manner of the second aspect, the network frequency reducing device further includes an estimation module; the estimating module is used for carrying out network frequency reduction on the target cell by adopting a first frequency reduction mode under the condition that the processing module meets a first condition in the target cell; otherwise, before the network frequency reduction is carried out on the target cell by adopting a second frequency reduction mode, estimating the NR downlink traffic volume of the target cell based on the first parameter in the preset time, and estimating the NR uplink traffic volume of the target cell based on the second parameter in the preset time; wherein the first parameter comprises: the number of NR terminals residing in the target cell and the average traffic of the LTE network downlink; the second parameters include: the number of NR terminals camping on the target cell and the average traffic on the LTE network.
In a third aspect, the present application provides a cell determining apparatus, including: a processor and a communication interface; the communication interface is coupled to a processor for running a computer program or instructions to implement the network frequency reduction method as described in any one of the possible implementations of the first aspect and the first aspect.
In a fourth aspect, the present application provides a computer readable storage medium having instructions stored therein which, when run on a terminal, cause the terminal to perform a network down conversion method as described in any one of the possible implementations of the first aspect and the first aspect.
In a fifth aspect, the present application provides a computer program product comprising instructions which, when run on a cell determining apparatus, cause the cell determining apparatus to perform a network down-conversion method as described in any one of the possible implementations of the first aspect and the first aspect.
In a sixth aspect, the present application provides a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a computer program or instructions to implement a network down conversion method as described in any one of the possible implementations of the first aspect and the first aspect.
In particular, the chip provided in the present application further includes a memory for storing a computer program or instructions.
Drawings
Fig. 1 is a flowchart of a network frequency reduction method provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a network frequency-reducing device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of another network frequency-reducing device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a chip according to an embodiment of the present application.
Detailed Description
The network frequency reduction method, the device and the readable storage medium provided by the embodiment of the application are described in detail below with reference to the accompanying drawings.
The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.
The terms "first" and "second" and the like in the description and in the drawings are used for distinguishing between different objects or for distinguishing between different processes of the same object and not for describing a particular sequential order of objects.
Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.
It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more.
The fifth generation mobile communication technology (5 th Generation Mobile Communication Technology, abbreviated as 5G) is a new generation broadband mobile communication technology with high speed, low time delay and large connection characteristics, and is also a network infrastructure for realizing man-machine object interconnection. At present, a 5G commercial network mainly adopts a medium-high frequency band, and a higher frequency spectrum can acquire more bandwidth resources, so that a higher experience rate is brought. However, the propagation characteristic of the wireless signal is that the higher the frequency is, the larger the space loss in space propagation is, so that the higher the base station construction density and the higher the investment are required to obtain the same coverage performance, especially for the area with low traffic, the dense middle-high frequency 5G base station is constructed to cover, on one hand, the investment is difficult to be recovered, and on the other hand, the construction direction of the wireless signal is opposite to that of the green double carbon, so that the construction of the fine-quality low-frequency 5G network is already carried out by operators, namely, the 5G network is constructed in the 700M-900M frequency band, and the method is used for covering rural areas with less traffic or for urban network bottoming coverage, thereby improving the overall coverage performance of the 5G network.
However, the low-frequency band of the existing network is in shortage, especially in part of rural areas, the LTE network and the UMTS network are deployed in the 900MHz frequency band at the same time, and the existing network LTE network still carries a certain amount of traffic, and the UMTS network also carries a certain amount of voice traffic. To vacate a portion of the resources for 5G network deployment, the spectrum resources occupied by LTE and UMTS networks need to be further reduced. Currently, before the frequency reduction of a cell, a network side device may determine whether the cell can perform the frequency reduction based on the resource utilization rate of the cell. For example, if the resource utilization of the cell is less than the preset resource utilization, it is determined that the cell can perform frequency reduction, so that a part of resources can be vacated for deploying the NR system.
However, since the NR terminals of different cells have different popularity, determining whether the cell can perform frequency reduction according to the resource utilization of the cell may make the network after frequency reduction unable to meet the actual demands of the cell, thereby resulting in poor service experience of the cell after frequency reduction.
In order to solve the problem of poor service experience of a cell after frequency reduction in the prior art, the application provides a network frequency reduction method, which can carry out network frequency reduction on a target cell by adopting a first frequency reduction mode under the condition that the target cell meets a first condition; otherwise, performing network frequency reduction on the target cell by adopting a second frequency reduction mode; wherein the first condition comprises any one of: the estimated NR uplink traffic is greater than the uplink traffic threshold; the estimated NR downlink traffic is greater than the downlink traffic threshold. According to the scheme, the frequency reduction mode of performing network frequency reduction on the target cell can be determined based on the estimated NR uplink traffic or the estimated NR downlink traffic, namely, the network frequency reduction can be performed on the target cell based on the estimated traffic after the NR network is opened, so that the network after frequency reduction can meet the actual requirements of the cell, and the service experience of the cell after frequency reduction can be improved.
The network frequency reduction method provided by the application can be applied to a scene of carrying out network frequency reduction on the cell. The method for determining a cell provided in the present application will be described in detail below with reference to the accompanying drawings, taking a network side device to execute the method as an example.
As shown in fig. 1, a flowchart of a network frequency reduction method according to an embodiment of the present application is provided, and the method includes the following step 101.
The first frequency reduction mode is used for ensuring the number of NR spectrum resources, and the second frequency reduction mode is used for ensuring the number of LTE spectrum resources and the number of UMTS spectrum resources.
In an embodiment of the present application, the first condition includes any one of the following:
the estimated NR uplink traffic is greater than the uplink traffic threshold;
the estimated NR downlink traffic is greater than the downlink traffic threshold.
Optionally, in the embodiment of the present application, a first frequency reduction manner for ensuring the number of NR spectrum resources is used to perform network frequency reduction on the target cell, so that NR service experience of the target cell after the network frequency reduction can be improved.
Optionally, in the embodiment of the present application, the second frequency reduction manner for ensuring the number of LTE spectrum resources and the number of UMTS spectrum resources is used to perform network frequency reduction on the target cell, so that service experience of LTE service and UMTS service of the target cell after the network frequency reduction is not affected.
Optionally, in the embodiment of the present application, the number of NR spectrum resources in the first frequency reduction mode is greater than the number of NR spectrum resources in the second frequency reduction mode; and/or, the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the first frequency reduction mode is smaller than the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the second frequency reduction mode.
For example, assuming that the target cell shares 11MHz spectrum resources and the current network spectrum usage situation is 5M lte+5m UMTS, after the network frequency reduction is performed on the target cell by adopting the first frequency reduction method, the spectrum usage situation may be 5M nr+6m LTE and UMTS spectrum sharing (i.e., the LTE network independently occupies a part of bandwidth, the UMTS network independently occupies a part of bandwidth, and the LTE network and the UMTS network share a part of spectrum resources by means of dynamic spectrum sharing); after the network frequency reduction is performed on the target cell by adopting the second frequency reduction mode, the spectrum service condition can be 4M NR+3M LTE+3.8MUMTS. It can be seen that the number of NR spectrum resources in the first frequency-reducing mode is greater than the number of NR spectrum resources in the second frequency-reducing mode, and the sum of the number of LTE spectrum resources and the number of UMTS spectrum resources in the first frequency-reducing mode is less than the sum of the number of LTE spectrum resources and the number of UMTS spectrum resources in the second frequency-reducing mode.
In the embodiment of the present application, since the number of NR spectrum resources in the first frequency reduction mode is greater than the number of NR spectrum resources in the second frequency reduction mode; and/or, the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the first frequency reduction mode is smaller than the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the second frequency reduction mode; therefore, different frequency reduction modes can be adopted for different cells to carry out network frequency reduction, so that the network after frequency reduction can meet the actual demands of the cells.
Alternatively, in the embodiment of the present application, the above step 101 may be specifically implemented by the following step 101 a.
101a, network side equipment performs network frequency reduction on a target cell in a first frequency reduction mode under the condition that target cells meet a first condition and target parameters are smaller than respective corresponding first threshold values; otherwise, adopting a second frequency reduction mode to carry out network frequency reduction on the target cell.
Wherein the target parameters include: after the network frequency reduction is carried out on the target cell, the downlink traffic, the uplink physical resource quantity and the downlink physical resource quantity of the target cell are estimated.
It can be appreciated that if the target parameters are all smaller than the respective first threshold values, the first frequency reduction method may be considered feasible for the target cell.
Optionally, in the embodiment of the present application, after the foregoing network frequency reduction is performed on the target cell, the estimated downlink traffic sDL of the target cell may be determined by the following formula (1):
sDL＝sltedl× (1-rnrue)； (1)
wherein sltedl is the average traffic value of the LTE network in the busy hour in the past n days, and rnrue is the NR terminal proportion supporting the heavy-tillage frequency band.
In the examples of the present application rnrue= nnr/nue; nnr is the number of terminals which reside in the target cell in the past n days and support 5G communication in the heavy-tillage frequency band; nue is the total number of terminals camping on the target cell for the past n days.
Optionally, in the embodiment of the present application, the network side device may first obtain all the imei that resides in the target cell in the last n days of busy hours, perform deduplication, thereby obtaining the total number of terminals nue that reside in the target cell, and determine, based on the tac field in the imei, whether the terminal supports 5G communication in the heavy-tillage frequency band, thereby obtaining nnr described above.
Optionally, in this embodiment of the present application, the first threshold value corresponding to sDL may be sdl×δ1; where δ1 is a correction coefficient (e.g., may be a number between 0.8 and 1), SDL may be determined by the following equation (2):
SDL＝SDL1×R+SDL2× (1-R)； (2)
the SDL1 is the downlink maximum traffic which can be borne per hour when the LTE only occupies the exclusive bandwidth f1 of the LTE network; SDL2 is the maximum downlink traffic which can be borne per hour when LTE occupies f1+ the shared spectrum bandwidth f3 of the LTE network and the UMTS network; SDL1 and SDL2 may be obtained by simulation; r=tcs×η/3600000, tcs is the total duration of voice service transmission when n scales are busy in the past of the UMTS network, and η is a correction coefficient.
Alternatively, in the embodiment of the present application, the Tcs may be directly obtained through a network manager, or may be indirectly calculated through the following formula (3):
Tcs＝E×360000/ncs； (3)
where E is the voice traffic (unit: ireland) of the UMTS network over n balance busy hours, ncs is the average number of concurrent voice users per slot over n days busy hours of the UMTS network,
alternatively, embodiments of the present application summarize, the ncs= Σni/ns described above; where ni is the number of voice users on the ith time slot with voice service, and ns is the number of time slots with voice service transmission.
It is understood that the target parameters being smaller than the respective first threshold values may include: sDL < SDL×δ1.
Optionally, in the embodiment of the present application, after the foregoing network frequency reduction is performed on the target cell, the estimated downlink physical resource quantity nDL of the target cell may be determined by the following formula (4):
nDL＝nDLLTE-A1×sltedl×rnrue-A2； (4)
wherein, nDLLTE is the number of physical resource modules (Physical Resource Block, PRB) occupied by average every TTI in the time of downlink busy hour in the past n days, and A1 and A2 are constants.
Optionally, in this embodiment of the present application, the first threshold value corresponding to nDL may be ndl×δ3; where δ3 is a correction coefficient (e.g., may be a number between 0.8 and 1), NDL may be determined by the following equation (5):
NDL＝NDL1×R+NDL2×(1-R)； (5)
Wherein, NDL1 is the number of PRBs that can be used for downlink traffic transmission per TTI when LTE occupies only f1, and NDL2 is the number of PRBs that can be used for downlink traffic transmission per TTI when LTE occupies f1+f3.
It is understood that the target parameters being smaller than the respective first threshold values may include: nDL < NDL.times.δ1.
After the network frequency reduction is performed on the target cell, the determination method of the estimated uplink traffic volume, the estimated uplink physical resource quantity and the respective corresponding first threshold value of the target cell may refer to the above description about sDL and nDL, and in order to avoid repetition, the description is omitted here.
Optionally, in the embodiment of the present application, to advance the NR deployment rhythm, the UMTS traffic may be modified, mainly based on the average busy hour traffic of each month in the past period, and the future x-th month traffic (UMTS total traffic may decrease, for example, x may go to 3, 6, etc.) is estimated to obtain Ex '(Ex' < E), where Ex '=fcs (E1, E2 … … En) is calculated by substituting Ex' for E, where fcs is a function of the future traffic calculated based on the historical traffic, E1 is the average busy hour traffic of the first month before the current month, E2 is the average busy hour traffic of the second month before the current month, for example, the current month is 12, E1 is the average busy hour traffic of 11 months, E2 is the average busy hour traffic of 10 months, and so on.
It should be noted that, when each parameter in the target parameters is smaller than the first threshold value corresponding to each parameter, the network frequency reduction may be performed on the target cell by adopting the first frequency reduction mode.
In the embodiment of the application, under the condition that the target parameters are smaller than the corresponding first threshold values, the network side equipment adopts the first frequency reduction mode to carry out network frequency reduction on the target cell, so that whether the first frequency reduction mode is feasible or not can be further judged based on the current network load condition, and the service experience of the target cell after the network frequency reduction can be better ensured.
Alternatively, in the embodiment of the present application, the above step 101 may be specifically implemented by the following step 101 b.
101b, under the condition that a target cell meets a first condition, the network side equipment performs network frequency reduction on the target cell by adopting a first frequency reduction mode; otherwise, under the condition that the target parameters are smaller than the second corresponding threshold values, adopting a second frequency reduction mode to carry out network frequency reduction on the target cell.
Wherein the target parameters include: after the target cell is subjected to network frequency reduction, the estimated downlink traffic sDL, uplink traffic sUL, uplink physical resource quantity nUL and downlink physical resource quantity nDL of the target cell.
In this embodiment of the present application, the second threshold value is different from the first threshold value.
Optionally, in the embodiment of the present application, assuming that the LTE network exclusive bandwidth is f4, the UMTS network exclusive bandwidth is f5, and both have no shared bandwidth, if (f4+f5) > (f1+f2+f3) and sDL < SDL '×δ5, sUL < SUL' ×δ6, nDL < NDL '×δ7, nUL < nUL' ×δ8 (i.e. the target parameters are all smaller than the second corresponding threshold values), the second frequency-reducing method is used to perform network frequency reduction on the target cell.
When the SDL' is the LTE network occupies the frequency bandwidth f4, the maximum traffic which can be carried in the downlink per hour can be obtained through simulation; NDL' is the number of PRBs that can be used for downlink traffic transmission per TTI on average when the LTE network occupies the frequency bandwidth f 4; when SUL' is the frequency bandwidth f4 occupied by LTE network, the maximum service volume which can be carried by the uplink per hour can be obtained through simulation; NUL' is the number of PRBs that can be used for uplink traffic transmission per TTI when the LTE network occupies the frequency bandwidth f 4.
For other descriptions in step 101b, reference may be made to the related descriptions in the above embodiments, and in order to avoid repetition, the description is omitted here.
In the embodiment of the application, the network side equipment adopts the second frequency reduction mode to carry out the network frequency reduction on the target cell under the condition that the target parameters are smaller than the second corresponding threshold values, so that whether the second frequency reduction mode is feasible or not can be further judged based on the current network load condition, and the service experience of the target cell after the network frequency reduction can be better ensured.
Alternatively, in the embodiment of the present application, the target parameter may be a parameter corrected based on the target traffic.
Wherein, the target traffic is: traffic to the different frequency LTE cell co-sited with the target cell may be migrated.
Optionally, in an embodiment of the present application, the target parameters may include: sDL ', sUL', nDL ', nUL' obtained by correcting the above sDL, sUL, nDL, nUL based on the target traffic.
Alternatively, in the examples of the present application sDL' = sDL-ssltedl; the ssltedl is a traffic volume that can be transferred to an inter-frequency LTE cell co-sited with a target cell, if the target cell does not have the inter-frequency LTE cell co-sited with the target cell, ssltedl=0, if the target cell has the inter-frequency LTE cell co-sited with the target cell, a measurement report of the target cell during busy hours and the inter-frequency LTE cell busy hour traffic volume of the co-sited with the target cell are further obtained, and the ssltedl is calculated by the following formula (6):
ssltedl＝min(ssltedlc1，ssltedlc2)； (6)
wherein ssltedlc1 is traffic calculated based on coverage capability and capable of being transferred to the co-sited cell, and ssltedlc2 is traffic calculated based on capacity capability and capable of being transferred to the co-sited cell.
Alternatively, in the embodiment of the present application, ssltedlc1= sDL ×rc described above; wherein rc=nrsrp 1/nrrp, nrrp is the total RSRP sampling point number of the Measurement Report (MR) of the target cell in the past n days, and nrrp 1 is the sampling point number of RSRP greater than or equal to RSRP1 in the Measurement Report (MR) of the target cell in the past n days; rsrp1=rsrpe+δ, where RSRPe is the lowest RSRP value (for example, -110 dBm) that needs to be reached to meet the service experience, and δ is the coverage difference coefficient caused by the frequency band, and may be calculated based on the link budget, and related to the frequency band of the target cell network, the frequency band of the co-sited coverage different frequency cell, and the propagation model.
For example, the frequency band of the target cell is 900MHz, the co-sited coverage different frequency cell is 2100MHz, the common urban scene, NR 900MHz is based on the Okumura-Hata model, NR 2100MHz is based on the Cost231-Hata model, and the delta value is 12.
Alternatively, in the present embodiment, ssltedlc2=ssdlmax-ssdlr; the ssdlmax is the maximum traffic theoretically supported by the inter-frequency co-sited cell per hour, and can be obtained through simulation or experimental data, and ssdlr is the traffic of the co-sited coverage cell when n balances are all busy.
Optionally, in an embodiment of the present application, nDL' =ndlte-a 1× (sltedl×rnrue+ssltedl) -A2.
For the determination methods of sUL 'and nUL' above, reference may be made to the relevant descriptions in the above embodiments, and in order to avoid repetition, the description is omitted here.
It will be appreciated that after determining sDL ', sUL', nDL ', nUL' described above, the target cell may be network down-scaled in a second down-scaling manner if each parameter is less than a respective second threshold.
In this embodiment of the present application, since the target parameters may be: based on the parameters after the business volume correction of the different-frequency LTE cell which can be transferred to the co-station coverage of the target cell, the frequency reduction mode for carrying out network frequency reduction on the target cell is determined based on the target parameters, and the accuracy of determining the frequency reduction mode can be improved.
In the network frequency reduction method provided by the embodiment of the application, because the frequency reduction mode of carrying out network frequency reduction on the target cell can be determined based on the estimated NR uplink traffic or the estimated NR downlink traffic, namely, the network frequency reduction can be carried out on the target cell based on the estimated traffic after the NR network is opened, the network after frequency reduction can meet the actual requirements of the cell, and therefore, the service experience of the cell after frequency reduction can be improved.
Optionally, in the embodiment of the present application, before step 101, the network frequency reduction method provided in the embodiment of the present application may further include step 102 described below.
Step 102, the network side equipment estimates the NR downlink traffic volume of the target cell based on the first parameter in the preset time, and estimates the NR uplink traffic volume of the target cell based on the second parameter in the preset time.
Wherein the first parameter comprises: the number of NR terminals residing in the target cell and the average traffic of the LTE network downlink; the second parameters include: the number of NR terminals camping on the target cell and the average traffic on the LTE network.
Optionally, in the embodiment of the present application, the preset time may be any time; for example, the preset time is the last 3 days, the last 7 days, or the busy hour of the last 7 days, etc.
Alternatively, in the embodiment of the present application, the NR downlink traffic volume snrdl of the target cell may be estimated by the following formula (7):
snrdl＝sltedl×rnrue×α1。 (7)
alternatively, in the embodiment of the present application, the NR uplink traffic amount snrul of the target cell may be estimated by the following formula (8):
snrul＝slteul×rnrue×α2。 (8)
wherein α1 and α2 are correction coefficients, and are both greater than 1.
It can be understood that, because the NR system is turned on, service experience is improved, and more users may actually use the NR system (the user resides in 5G and discovers at a higher rate and experiences better), so the traffic may be greater than the traffic of the LTE network originally, and therefore correction coefficients α1 and α2 are set to correct the traffic.
For other descriptions of the parameters in the above formulas (7) and (8), reference may be made to the descriptions related to the above embodiments, and in order to avoid repetition, a description is omitted here.
In the embodiment of the present application, before the network frequency reduction is performed on the target cell, the network side device may estimate the NR downlink traffic volume of the target cell based on the first parameter in the preset time, and estimate the NR uplink traffic volume of the target cell based on the second parameter in the preset time, so that the network frequency reduction may be performed on the target cell by adopting the corresponding frequency reduction mode based on the relationship between the estimated NR traffic volume and the corresponding threshold, and therefore, the network after frequency reduction may further meet the actual requirements of the cell.
The embodiment of the application may divide the functional modules or functional units of the network frequency reduction device according to the above method example, for example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware, or in software functional modules or functional units. The division of the modules or units in the embodiments of the present application is merely a logic function division, and other division manners may be implemented in practice.
Fig. 2 is a schematic structural diagram of a network frequency reducing device according to an embodiment of the present application, where the network frequency reducing device includes a processing module 201. The processing module 201 may be configured to perform network frequency reduction on the target cell in a first frequency reduction manner when the target cell meets a first condition; otherwise, performing network frequency reduction on the target cell by adopting a second frequency reduction mode; the first frequency reduction mode is used for ensuring the number of NR frequency spectrum resources, and the second frequency reduction mode is used for ensuring the number of LTE frequency spectrum resources and the number of UMTS frequency spectrum resources; the first condition includes any one of: the estimated NR uplink traffic is greater than the uplink traffic threshold; the estimated NR downlink traffic is greater than the downlink traffic threshold.
In one possible implementation, the number of NR spectrum resources in the first frequency reduction mode is greater than the number of NR spectrum resources in the second frequency reduction mode; and/or, the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the first frequency reduction mode is smaller than the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the second frequency reduction mode.
In a possible implementation manner, the processing module 201 may be specifically configured to perform network frequency reduction on the target cell by adopting a first frequency reduction manner when the target parameters are all smaller than the respective corresponding first threshold values; wherein the target parameters include: after the network frequency reduction is carried out on the target cell, the downlink traffic, the uplink physical resource quantity and the downlink physical resource quantity of the target cell are estimated.
In a possible implementation manner, the processing module 201 may specifically be configured to perform network frequency reduction on the target cell by adopting a second frequency reduction manner when the target parameters are all smaller than the respective corresponding second threshold values; wherein the target parameters include: after the network frequency reduction is carried out on the target cell, estimating the downlink traffic, the uplink physical resource quantity and the downlink physical resource quantity of the target cell; the second threshold value is different from the first threshold value.
In one possible implementation, the target parameter is a parameter corrected based on the target traffic; wherein, the target traffic is: traffic to the different frequency LTE cell co-sited with the target cell may be migrated.
In a possible implementation manner, the network frequency reducing device may further include an estimation module; the estimation module may be configured to perform network frequency reduction on the target cell in a first frequency reduction manner when the processing module 201 meets a first condition in the target cell; otherwise, before the network frequency reduction is carried out on the target cell by adopting a second frequency reduction mode, estimating NR downlink traffic of the target cell based on a first parameter in a preset time, and estimating NR uplink traffic of the target cell based on a second parameter in the preset time; wherein the first parameter comprises: the number of NR terminals residing in the target cell and the average traffic of the LTE network downlink; the second parameters include: the number of NR terminals camping on the target cell and the average traffic on the LTE network.
When implemented in hardware, the processing module 201 in embodiments of the present application may be integrated on a processor. A specific implementation is shown in fig. 3.
Fig. 3 shows a further possible structural schematic diagram of the network frequency reduction device involved in the above embodiment. The network frequency reducing device comprises: a processor 302 and a communication interface 303. The processor 302 is configured to control and manage actions of the network frequency reduction device, e.g., perform the steps performed by the processing module 201 described above, and/or perform other processes of the techniques described herein. The network frequency reduction device may further comprise a memory 301 and a bus 304, the memory 301 being adapted to store program codes and data of the network frequency reduction device.
Wherein the memory 301 may be a memory in a network down device or the like, which may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, hard disk or solid state disk; the memory may also comprise a combination of the above types of memories.
The processor 302 described above may be implemented or executed with various exemplary logic blocks, modules and circuits described in connection with this disclosure. The processor may be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules, and circuits described in connection with this disclosure. The processor may also be a combination that performs the function of a computation, e.g., a combination comprising one or more microprocessors, a combination of a DSP and a microprocessor, etc.
Fig. 4 is a schematic structural diagram of a chip 170 according to an embodiment of the present application. Chip 170 includes one or more (including two) processors 1710 and communication interfaces 1730.
Optionally, the chip 170 further includes a memory 1740, the memory 1740 may include read-only memory and random access memory, and provides operating instructions and data to the processor 1710. A portion of memory 1740 may also include non-volatile random access memory (non-volatile random access memory, NVRAM).
In some implementations, memory 1740 stores the elements, execution modules or data structures, or a subset thereof, or an extended set thereof.
In the present embodiment, the corresponding operations are performed by invoking operational instructions stored in memory 1740 (which may be stored in the operating system).
Wherein the processor 1710 may implement or perform various exemplary logic blocks, units, and circuits described in connection with the present disclosure. The processor may be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, units and circuits described in connection with this disclosure. The processor may also be a combination that performs the function of a computation, e.g., a combination comprising one or more microprocessors, a combination of a DSP and a microprocessor, etc.
From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.
Embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the network frequency reduction method of the method embodiments described above.
The embodiment of the application also provides a computer readable storage medium, in which instructions are stored, which when executed on a computer, cause the computer to execute the network frequency reduction method in the method flow shown in the method embodiment.
The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access Memory (Random Access Memory, RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), a register, a hard disk, an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing, or any other form of computer readable storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuit, ASIC). In the context of the present application, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
Embodiments of the present invention provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform a network frequency reduction method as described in fig. 1.
Since the network frequency reducing device, the computer readable storage medium and the computer program product in the embodiments of the present invention can be applied to the above method, the technical effects obtained by the method can also refer to the above method embodiments, and the embodiments of the present invention are not described herein again.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, indirect coupling or communication connection of devices or units, electrical, mechanical, or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (14)
1. A method of network frequency reduction, the method comprising:
under the condition that a target cell meets a first condition, performing network frequency reduction on the target cell by adopting a first frequency reduction mode; otherwise, performing network frequency reduction on the target cell by adopting a second frequency reduction mode;
The first frequency reduction mode is used for ensuring the number of the NR spectrum resources of the new air interface, and the second frequency reduction mode is used for ensuring the number of the LTE spectrum resources and the number of the UMTS spectrum resources of the universal mobile telecommunication system;
the first condition includes any one of:
the estimated NR uplink traffic is greater than the uplink traffic threshold;
the estimated NR downlink traffic is greater than the downlink traffic threshold.
2. The method of claim 1, wherein the number of NR spectral resources in the first frequency reduction mode is greater than the number of NR spectral resources in the second frequency reduction mode; and/or, the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the first frequency reduction mode is smaller than the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the second frequency reduction mode.
3. The method of claim 1, wherein the performing network frequency reduction on the target cell by using a first frequency reduction manner includes:
under the condition that the target parameters are smaller than the corresponding first threshold values, performing network frequency reduction on the target cell by adopting the first frequency reduction mode;
wherein the target parameters include: after the network frequency reduction is carried out on the target cell, the downlink traffic, the uplink physical resource quantity and the downlink physical resource quantity of the target cell are estimated.
4. The method of claim 3, wherein performing network frequency reduction on the target cell by using a second frequency reduction manner comprises:
under the condition that the target parameters are smaller than the corresponding second threshold values, performing network frequency reduction on the target cell by adopting the second frequency reduction mode;
wherein the target parameters include: after the target cell is subjected to network frequency reduction, estimating downlink traffic, uplink physical resource quantity and downlink physical resource quantity of the target cell;
the second threshold value is different from the first threshold value.
5. The method according to claim 3 or 4, wherein the target parameter is a parameter corrected based on a target traffic volume;
wherein the target traffic is: traffic to an inter-frequency LTE cell co-sited with the target cell may be migrated.
6. The method according to claim 1, wherein in the case that the target cell meets the first condition, performing network frequency reduction on the target cell by adopting a first frequency reduction mode; otherwise, before performing network frequency reduction on the target cell by adopting a second frequency reduction mode, the method further comprises the following steps:
Estimating an NR downlink traffic volume of the target cell based on a first parameter within a preset time, and estimating an NR uplink traffic volume of the target cell based on a second parameter within the preset time;
wherein the first parameter comprises: the number of NR terminals residing in the target cell and the average traffic of the LTE network downlink;
the second parameter includes: the number of NR terminals camping on the target cell, and the average traffic on the LTE network uplink.
7. A network frequency reduction device, characterized in that the device comprises a processing module;
the processing module is used for carrying out network frequency reduction on the target cell by adopting a first frequency reduction mode under the condition that the target cell meets a first condition; otherwise, performing network frequency reduction on the target cell by adopting a second frequency reduction mode;
the first frequency reduction mode is used for ensuring the number of NR frequency spectrum resources, and the second frequency reduction mode is used for ensuring the number of LTE frequency spectrum resources and the number of UMTS frequency spectrum resources;
the first condition includes any one of:
the estimated NR uplink traffic is greater than the uplink traffic threshold;
the estimated NR downlink traffic is greater than the downlink traffic threshold.
8. The apparatus of claim 7, wherein the number of NR spectral resources in the first frequency reduction mode is greater than the number of NR spectral resources in the second frequency reduction mode; and/or, the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the first frequency reduction mode is smaller than the sum of the LTE spectrum resource quantity and the UMTS spectrum resource quantity in the second frequency reduction mode.
9. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
the processing module is specifically configured to perform network frequency reduction on the target cell by adopting the first frequency reduction mode when the target parameters are all smaller than the respective corresponding first threshold values;
wherein the target parameters include: after the network frequency reduction is carried out on the target cell, the downlink traffic, the uplink physical resource quantity and the downlink physical resource quantity of the target cell are estimated.
10. The apparatus of claim 9, wherein the device comprises a plurality of sensors,
the processing module is specifically configured to perform network frequency reduction on the target cell by adopting the second frequency reduction mode when the target parameters are all smaller than the second corresponding threshold values;
wherein the target parameters include: after the target cell is subjected to network frequency reduction, estimating downlink traffic, uplink physical resource quantity and downlink physical resource quantity of the target cell;
The second threshold value is different from the first threshold value.
11. The apparatus according to claim 9 or 10, wherein the target parameter is a parameter corrected based on a target traffic volume;
wherein the target traffic is: traffic to an inter-frequency LTE cell co-sited with the target cell may be migrated.
12. The apparatus of claim 7, wherein the apparatus further comprises an estimation module;
the estimation module is configured to perform network frequency reduction on the target cell in the first frequency reduction manner when the processing module meets the first condition on the target cell; otherwise, before the network frequency reduction is carried out on the target cell by adopting the second frequency reduction mode, estimating NR downlink traffic volume of the target cell based on a first parameter in a preset time, and estimating NR uplink traffic volume of the target cell based on a second parameter in the preset time;
wherein the first parameter comprises: the number of NR terminals residing in the target cell and the average traffic of the LTE network downlink;
the second parameter includes: the number of NR terminals camping on the target cell, and the average traffic on the LTE network uplink.
13. A network frequency reduction apparatus, comprising: a processor and a communication interface; the communication interface is coupled to the processor for running a computer program or instructions to implement the network frequency reduction method as claimed in any one of claims 1-6.
14. A computer readable storage medium having instructions stored therein, characterized in that when executed by a computer, the computer performs the network frequency reduction method of any of the preceding claims 1-6.
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