CN113972971B - Method for adjusting carrier switching threshold and network equipment - Google Patents
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
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- H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
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- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00837—Determination of triggering parameters for hand-off
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Abstract
The embodiment of the invention provides a method for adjusting a carrier switching threshold and network equipment. According to the method and the device, the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching are obtained, the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching are compared, and the switching threshold of the first carrier is adjusted based on a comparison result, so that the problem of 'one-cut' of dynamically adjusting the current SUL uplink threshold is achieved.
Description
[ field of technology ]
The present invention relates to the field of wireless technologies, and in particular, to a method and a network device for adjusting a carrier switching threshold.
[ background Art ]
The 5G network has entered a commercial stage, and a high-frequency large-bandwidth network will become mainstream, but the problem of unbalanced uplink and downlink coverage is particularly prominent in 5G due to the limitations of power, volume, antenna and the like of the UE terminal. And the method is superior to 5G and adopts a large bandwidth setting, and in the TDD mode, the problem of uplink coverage and rate limitation is more prominent.
The 3gpp Release 15 Release introduced a supplementary uplink carrier SUL (supplementary uplink), i.e. uplink and downlink decoupling technique. The 3GPP R15 protocol defines 7 SUL/NR frequency band combinations under SA networking:
NR-DL 3.3G～3.8G+SUL 700/800/900/1800/2100M
NR-DL 4.4G～5.0G+SUL 900/1800M。
the SUL can effectively utilize idle Sub-3G frequency band resources, improves uplink coverage, enables more areas to enjoy 5G, and improves the use experience of edge users. The existing SUL carrier switching threshold can be determined through repeated test point measurement verification and empirical estimation, and meanwhile, the SUL carrier threshold in the prior art is set and fixed, so that the risk of 'one-cut' exists.
In addition, the downlink coverage measurement of the cell by the UE is compared with the SUL switching threshold to perform normal uplink carrier (NUL) and SUL switching, and the background index only can reflect whether the SUL switching is successful or not, but cannot determine whether the sensing rate of the User Equipment (UE) is changed before and after uplink decoupling, if the switching threshold is improperly set, the sensing rate of the UE is instead deteriorated after decoupling switching in/out, and the meaning of the SUL is lost.
[ invention ]
In view of the above, in order to solve the above technical problems, the present invention provides a method for adjusting a carrier switching threshold and a network device.
In one aspect, the present invention provides a method for adjusting a carrier switching threshold, where the method is applied to a network device, the network device includes a plurality of target cells, and the target cells include at least a first carrier and a second carrier, and the method includes:
acquiring a switching threshold of the first carrier wave of a target cell;
acquiring the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching; the carrier switching comprises switching in and/or switching out, wherein the switching in comprises switching the second carrier to the first carrier, and the switching out comprises switching the first carrier to the second carrier;
comparing the average throughput rate of the UE of the target cell before carrier switching with the average throughput rate of the UE of the target cell after carrier switching, and adjusting the switching threshold of the first carrier based on the comparison result.
Further, the method further comprises: acquiring a carrier switching success rate of the UE and a throughput rate of the UE;
and calculating and obtaining the average throughput rate of the UE based on at least one of the carrier switching success rate of the UE and the throughput rate of the UE.
Further, the obtaining the UE average throughput rate of the target cell before carrier switching and the UE average throughput rate of the target cell after carrier switching includes:
acquiring the average throughput rate of the UE of the target cell before the first carrier switching and the average throughput rate of the UE of the target cell after the first carrier switching; or alternatively
And acquiring the average throughput rate of the UE of the target cell before the first carrier is switched out and the average throughput rate of the UE of the target cell after the first carrier is switched out.
Further, the first carrier switching threshold includes a first carrier switching in threshold and a first carrier switching out threshold, the UE average throughput rate of the target cell before carrier switching and the UE average throughput rate of the target cell after carrier switching are compared, and the switching threshold of the first carrier is adjusted based on a comparison result, where the method includes:
comparing the average throughput rate of the UE of the target cell before the first carrier is switched with the average throughput rate of the UE of the target cell after the first carrier is switched:
if the average throughput rate B of the UE of the target cell before the first carrier is switched in 1 The average throughput rate W of the UE is larger than the average throughput rate W of the target cell after the first carrier is switched in 1 When the first carrier switching threshold is reduced;
if the average throughput rate B of the UE of the target cell before the first carrier is switched in 1 The average throughput W of the UE of the target cell after the first carrier is switched in is smaller than or equal to 1 When the first carrier switching threshold is increased or maintained;
or,
comparing the average throughput rate of the UE of the target cell before the first carrier is switched with the average throughput rate of the UE of the target cell after the first carrier is switched:
if the average throughput rate B of the UE of the target cell before the first carrier is switched out 2 The average throughput rate W of the UE is larger than the target cell after the first carrier is switched out 2 When the first carrier switching threshold is increased;
if the average throughput rate B of the UE of the target cell before the first carrier is switched out 2 Less than or equal to the average throughput W of the UE after the first carrier is switched out 2 And maintaining the first carrier switching threshold.
Further, the step of adjusting up or maintaining the first carrier switch-in threshold includes:
acquiring the load of the first carrier wave load, and comparing the first carrier wave load with a preset threshold value;
if the first carrier load is greater than or equal to a preset threshold, maintaining the first carrier switch-in threshold;
and if the first carrier load is smaller than the preset threshold value, the first carrier switching threshold is adjusted to be larger.
Further, the saidUE average throughput B of target cell before first carrier switch-in 1 By formula 1:obtaining;
further, the average UE throughput of the target cell after the first carrier is switched in is represented by equation 2:obtaining;
wherein n is the total number of UEs initiating the first carrier switch in, u j For the UE throughput rate, p, of user j in a preset time j The success rate of the carrier switching of the UE is the success rate of the carrier switching of the user j in the preset time;
the step of reducing the first carrier switching threshold is realized by 3:the method comprises the steps of obtaining, among others,switching in threshold for the current first carrier, < >>A threshold is switched in for a first carrier for the next carrier switching, delt (x) is a reduction coefficient;
the step of increasing or maintaining the first carrier switch-in threshold passes formula 4:if PRB is SUL < delta acquisition, wherein PRB SUL Representing the load of the first carrier, delta being the load decision threshold, delt (1-PRB SUL ) Is a coefficient.
Further, the average throughput rate B of the UE of the target cell before the first carrier is switched 2 By formula 5:obtaining;
the average throughput W of the UE of the target cell after the first carrier is switched 2 By formula 6:obtaining;
wherein m is the total number of UEs initiating the first carrier switching, u i For the UE throughput rate of user i in a preset time, p i The success rate of the carrier switching of the UE is the success rate of the carrier switching of the user i in the preset time;
said step of increasing said first carrier switch-out threshold is performed by a step of 7:the completion of the method, wherein,switching out a threshold for the current first carrier, < >>For the switching-out threshold of the next carrier switching, delt (x) is an increase coefficient, delt (x) comprises +>
Further, the first carrier includes a SUL, and the second carrier is a non-SUL uplink carrier.
In another aspect, the present application provides a network device with a carrier switching threshold, where the network device includes a plurality of target cells, where the target cells include at least a first carrier and a second carrier, and the network device includes:
a first obtaining module, configured to obtain a handover threshold of the first carrier of the target cell;
the second acquisition module is used for acquiring the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching; the carrier switching comprises switching in and/or switching out, wherein the switching in comprises switching the second carrier to the first carrier, and the switching out comprises switching the first carrier to the second carrier;
and the comparison module is used for comparing the average throughput rate of the UE of the target cell before carrier switching with the average throughput rate of the UE of the target cell after carrier switching, and adjusting the switching threshold of the first carrier based on a comparison result.
Further, the second obtaining module is further configured to obtain an average throughput rate of the UE of the target cell before the first carrier is switched in, and an average throughput rate of the UE of the target cell after the first carrier is switched in; or alternatively
The method is used for acquiring the average throughput rate of the UE of the target cell before the first carrier is switched out and the average throughput rate of the UE of the target cell after the first carrier is switched out.
According to the method and the device, the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching are obtained, the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching are compared, and the switching threshold of the first carrier is adjusted based on a comparison result, so that the problem of 'one-cut' of dynamically adjusting the current SUL uplink threshold is achieved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for adjusting a carrier switching threshold according to an embodiment of the present invention;
fig. 2A is a flowchart of a method for adjusting a SUL handover threshold according to another embodiment of the present invention;
fig. 2B is a flowchart of a method for adjusting a SUL handover threshold according to another embodiment of the present invention;
FIG. 3 is a flow chart of a method for adjusting or maintaining SUL handoff threshold according to an embodiment of the invention
Fig. 4 is a schematic diagram of a network device for adjusting a carrier switching threshold according to an embodiment of the present invention.
FIG. 5 is a schematic diagram of a computer device
[ detailed description ] of the invention
For a better understanding of the technical solution of the present invention, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the 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.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one way of describing an association of associated objects, meaning that there may be three relationships, e.g., a and/or b, which may represent: the first and second cases exist separately, and the first and second cases exist separately. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In the existing normal uplink carrier and SUL switching technology, SUL switching is mainly performed through comparison of an NR cell RSRP threshold reported by UE and an SUL switching threshold, namely, a SULRsrPTHld threshold is set firstly, when UE measurement is smaller than the SULRsrPTHld threshold, measurement is reported, and a network side instructs the UE to perform uplink decoupling and switch to an SUL frequency band; and when the decoupled UE measures that the downlink level value is larger than the SULRsrPThld threshold, reporting an event report, and indicating the UE to switch from the SUL frequency band to the NR frequency band by the network equipment. The uplink SUL/NR frequency band switching of the UE is completely determined by the downlink measurement level, and the SUL switching threshold is fixed in the prior art, so that the risk of 'one cut' exists, and the perception rate of the user is not considered.
The following describes in detail the solutions proposed by the present application to solve the above technical problems.
Fig. 1 is a flowchart of a method for adjusting a carrier switching threshold according to an embodiment of the present invention. It should be noted that the method for adjusting the carrier switching threshold provided in the present application is applied to network devices, such as network access devices, e.g. a base station, where the base station includes a plurality of target cells, and the target cells at least include a first carrier and a second carrier, where, for example, the first carrier includes an SUL, the second carrier includes a non-SUL, and the first carrier and the second carrier may be both uplink carriers.
Referring to fig. 1, the method for adjusting the carrier switching threshold disclosed in the present application includes:
step 102: the switching threshold of the first carrier wave of the target cell is obtained, specifically, the initial switching threshold of the target cell can be set through manual measurement, or can be set automatically through network equipment according to the cell condition, and the switching threshold of the target cell can be obtained at any time by the network equipment.
Step 104: acquiring the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching; the carrier switching comprises switching in and/or switching out, wherein the switching in comprises switching the second carrier to the first carrier, and the switching out comprises switching the first carrier to the second carrier;
step 106: comparing the average throughput rate of the UE of the target cell before carrier switching with the average throughput rate of the UE of the target cell after carrier switching, and adjusting the switching threshold of the first carrier based on the comparison result.
In the technical scheme provided by the embodiment of the invention, the first carrier switching-in threshold or the first carrier switching-out threshold is dynamically regulated in real time through the comparison result of the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching, so that the risk of 'one-cut' of the uplink carrier switching threshold in the prior art is avoided.
The method disclosed in the present specification will be specifically described by taking the first carrier as the SUL and the second carrier as the non-SUL as examples.
Fig. 2A is a flowchart of a method for adjusting a SUL switching threshold according to an embodiment of the present invention, as shown in fig. 2A, where the method includes:
step 202A, obtaining the UE average throughput rate of the target cell before SUL handover and the UE average throughput rate of the target cell after SUL handover
Specifically, an acquisition module may be disposed on the base station, and may detect and acquire the UE average throughput rate of the target cell in real time, in an embodiment, the base station may calculate the UE average throughput rate by acquiring the UE uplink carrier switching success rate and the UE throughput rate within a preset time, and based on at least one of the UE uplink carrier switching success rate and the UE throughput rate.
An example of calculating the UE average throughput rate based on at least one of the UE carrier handover success rate and the UE throughput rate is given below.
Illustratively, the UE average throughput rate B of the target cell prior to SUL handoff 1 By formula 1:obtaining; the average UE throughput of the target cell after SUL handover is given by equation 2:obtaining; wherein n is the total number of UEs initiating SUL handover, u j For the UE throughput rate, p, of user j in a preset time j And the success rate of the carrier switching of the UE is increased for the user j in the preset time. It should be noted that, in the above calculation method, the UE carrier switching success rate and the UE throughput rate are used to calculate the UE average throughput rate, and other information parameters may also be used to calculate the UE average throughput rate, which is not described in detail.
Step 204A, comparing the average throughput rate of the UE of the target cell before the SUL is switched in with the average throughput rate of the UE of the target cell after the SUL is switched in.
Step 206A, if the average throughput B1 of the UE in the target cell before the SUL handover is greater than the average throughput W1 of the UE in the target cell after the SUL handover, reducing the SUL handover threshold;
and if the average throughput rate B1 of the UE of the target cell before the SUL is switched in is smaller than or equal to the average throughput rate W1 of the UE of the target cell after the SUL is switched in, the SUL switching-in threshold is regulated or maintained.
In particular, if B 1 >W 1 And after the UE performs uplink and downlink decoupling under the current switching-in threshold, the UE penalizes the current switching-in threshold when the overall user rate is reduced, namely the current switching-in threshold needs to be correspondingly reduced, and uplink and downlink decoupling is delayed. If B is 1 ≤W 1 And after uplink and downlink decoupling of the UE is proved, the overall user experience is not reduced, meanwhile, the coverage gain brought by the uplink SUL is considered, the current switch-in threshold is rewarded by combining the load condition of the current SUL, namely when the load of the SUL carrier wave does not reach a preset threshold, the threshold is increased according to a certain coefficient, and otherwise, the current threshold is kept unchanged.
An exemplary method of specifically tuning down the SUL handoff threshold is given below.
Specifically, the turn-down SUL switch-in threshold may be set by equation 3:the method comprises the steps of obtaining, among others,switch in threshold for current SUL, +.>SUL switch-in threshold for next carrier switch, delt (x) is a decreasing coefficient, illustratively +.>Lambda may be empirically set, illustratively lambda E (0.01,0.3), illustratively Delt (x) is +.>Thus, UE average rate before and after SUL change is changed +>As an input, the impact of the rate change as a coefficient on the SUL switch-in threshold is visually reflected.
In particular, the SUL handoff threshold may be determined by determining the SUL load for scaling up or maintaining the SUL handoff threshold.
Referring to fig. 3, fig. 3 is a flowchart of the above-mentioned process of adjusting or maintaining the SUL switch-in threshold according to an embodiment of the present invention, which specifically includes:
step 302: and step, obtaining the load of the SUL.
Illustratively, the SUL carrier load may include at least one of uplink PRB utilization, uplink traffic.
Step 304: and judging whether the SUL load is larger than or equal to a preset threshold value.
Step 306: if the SUL load is greater than or equal to a preset threshold, maintaining the SUL switching threshold; and if the SUL load is smaller than the preset threshold, adjusting the SUL switching threshold.
An exemplary method for specifically tuning up or maintaining the SUL handoff threshold based on the SUL load is presented below.
By formula 4:if PRB is SUL < delta-scaling up or maintaining the SUL switch-in threshold, wherein PRBs SUL Representing the load of the SUL, delta being the load determination threshold, delt (1-PRB SUL ) Is a coefficient. Illustratively δ may be preset to 75% and may be adjusted according to network conditions. It has been shown above that the SUL carrier load may comprise at least one of uplink PRB utilization, uplink traffic, exemplary PRBs SUL And if the SUL is larger than or equal to at least one of PRB utilization rate and uplink flow, maintaining the current SUL cut-in threshold unchanged. Exemplary PRB SUL At least one of the utilization rate of PRB and the uplink flow is smaller than that of PRB, and the current is regulated upSUL cuts into the threshold.
Fig. 2B is a flowchart of a method for adjusting a SUL handover threshold according to another embodiment of the present invention;
step 202B, acquiring the average throughput rate of the UE of the target cell before the SUL is switched out and the average throughput rate of the UE of the target cell after the SUL is switched out;
specifically, the UE average throughput rate of the target cell before the SUL handover and the UE average throughput rate of the target cell after the SUL handover may be calculated in the following manner.
UE average throughput B of target cell before SUL switching 2 By formula 5:obtaining;
the average throughput W of the UE of the target cell after the SUL is switched out 2 By formula 6:obtaining;
wherein m is the total number of UE initiating SUL handover, u i For the UE throughput rate of user i in a preset time, p i The success rate of the carrier switching of the UE is the success rate of the carrier switching of the user i in the preset time;
step 204B, comparing the average throughput rate of the UE of the target cell before SUL handover with the average throughput rate of the UE of the target cell after SUL handover
Step 206B, if the average throughput B2 of the UE of the target cell before the SUL handover is greater than the average throughput W2 of the UE of the target cell after the SUL handover, adjusting the SUL handover threshold;
and if the average throughput rate B2 of the UE of the target cell before the SUL is switched out is smaller than or equal to the average throughput rate W2 of the UE after the SUL is switched out, maintaining the SUL switching-out threshold.
In particular, if B 2 >W 2 After the UE returns to the main frequency band from the SUL at the current switching-in threshold gate, the overall user experience is reduced, and the SUL switching-out threshold is punished, namely the SUL switching is increased by a preset coefficientAnd outputting a threshold. If B is 2 ≤W 2 The UE is proved to return to the main frequency band by the SUL under the SUL switching threshold at the current moment, the overall user rate is not reduced, and the threshold is not required to be adjusted in consideration of the fact that the channel estimation, demodulation, scheduling and the like of the uplink of the UE on the NR carrier wave are more accurate compared with the SUL, and the high-frequency bandwidth is also more sufficient, namely when B 2 ≤W 2 When the SUL handoff threshold is maintained.
Specifically, the above-mentioned widening the SUL switch-out threshold passes through equation 7:completion of (i) wherein->Switch out threshold for current SUL, +.>For the switching out threshold of the next carrier switch, delt (x) is an increase factor, illustratively +> Thus, UE average rate before and after SUL change is changed +>As an input, the effect of the rate change as a coefficient on the SUL switch-out threshold is visually reflected.
According to the method and the device, the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching are obtained, the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching are compared, and the switching threshold of the SUL is adjusted based on a comparison result, so that the problem of 'one-step cutting' of dynamically adjusting the current SUL uplink threshold is solved.
Referring to fig. 4, fig. 4 is a schematic diagram of a network device according to an embodiment of the present invention, where the network device may include a base station.
A first obtaining module 402 is configured to obtain a handover threshold of the SUL of a target cell.
A second obtaining module 404, configured to obtain an average throughput rate of the UE of the target cell before carrier switching and an average throughput rate of the UE of the target cell after carrier switching; the carrier switching comprises switching in and/or switching out, wherein the switching in comprises switching the second carrier to the SUL, and the switching out comprises switching the SUL to the second carrier;
and a comparing module 406, configured to compare the UE average throughput rate of the target cell before the carrier switching with the UE average throughput rate of the target cell after the carrier switching, and adjust the switching threshold of the SUL based on the comparison result.
The second obtaining module 404 is further configured to obtain the UE average throughput rate of the target cell before the SUL is switched out, and the UE average throughput rate of the target cell after the SUL is switched out.
The network device may further include a third obtaining module, configured to obtain a UE carrier handover success rate and a UE throughput rate; and calculating and obtaining the average throughput rate of the UE based on at least one of the carrier switching success rate of the UE and the throughput rate of the UE.
The comparing module 406 is further configured to compare the UE average throughput rate of the target cell before the SUL is switched in with the UE average throughput rate of the target cell after the SUL is switched in:
if the average throughput rate B of the UE of the target cell before the SUL is switched in 1 Average throughput W of UE (user equipment) greater than target cell after SUL (SUL) switching 1 When the SUL is switched into the threshold, the SUL is turned down;
if the average throughput rate B of the UE of the target cell before the SUL is switched in 1 Less than or equal to the average throughput W of the UE of the target cell after the SUL is switched in 1 When the SUL switching threshold is increased or maintained;
or,
comparing the average throughput rate of the UE of the target cell before the SUL is switched out with the average throughput rate of the UE of the target cell after the SUL is switched out:
if the average throughput rate B of the UE of the target cell before the SUL is switched out 2 Average throughput W of UE (user equipment) greater than target cell after SUL (SUL) switching 2 When the SUL switching threshold is increased;
if the average throughput rate B of the UE of the target cell before the SUL is switched out 2 Less than or equal to the average throughput W of the UE after SUL switching 2 And maintaining the SUL switching out threshold.
The comparing sub-module may include a first comparing sub-module, configured to obtain a load of the SUL load, and compare the SUL load with a preset threshold; if the SUL load is greater than or equal to a preset threshold, maintaining the SUL switching threshold; and if the SUL load is smaller than the preset threshold, adjusting the SUL switching threshold.
The embodiment of the invention also provides a computer device, which comprises a memory and a processor, wherein the memory is used for storing information comprising program instructions, the processor is used for controlling the execution of the program instructions, and the program instructions realize the steps of the carrier switching threshold adjusting method when being loaded and executed by the processor. For specific description, reference may be made to the embodiments of the method for adjusting the carrier switch threshold.
Fig. 5 is a schematic diagram of a computer device according to an embodiment of the present invention. As shown in fig. 5, the computer device 5 of this embodiment includes: the processor 51, the memory 52, and the computer program 53 stored in the memory 52 and capable of running on the processor 51, where the computer program 53 is executed by the processor 51 to implement the SUL switching method in the embodiment, and is not described herein in detail to avoid repetition. Alternatively, the computer program when executed by the processor 51 implements the functions of the various models/units in the network device for adjusting the carrier switching threshold in the embodiment, and in order to avoid repetition, the description is omitted here.
The computer device 5 includes, but is not limited to, a processor 51, a memory 52. It will be appreciated by those skilled in the art that fig. 5 is merely an example of the computer device 5 and is not limiting of the computer device 5, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the computer device 5 may also include input and output devices, network access devices, buses, etc.
The processor 51 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 52 may be an internal storage unit of the computer device 5, such as a hard disk or a memory of the computer device 5. The memory 52 may also be an external storage device of the computer device 5, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the computer device 5. Further, the memory 52 may also include both internal storage units and external storage devices of the computer device 5. The memory 52 is used to store computer programs and other programs and data required by the computer device 5. The memory 52 may also be used to temporarily store data that has been output or is to be output.
The steps of the method of adjusting the carrier switch threshold may be implemented when an application stored in the memory 52 is executed by a processor. For a specific description, reference may be made to an embodiment of a method for adjusting a carrier switch threshold.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided in the present invention, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical function division, and there may be additional divisions of actual implementation, e.g., multiple elements 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 an indirect coupling or communication connection via some interfaces, devices or units, which may be in 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 over 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 the embodiments of the present invention 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 integrated units may be implemented in hardware or in hardware plus software functional units.
The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer apparatus (which may be a personal computer, a server, or a network device, etc.) or a Processor (Processor) to perform part of the steps of the methods 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 (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Claims (8)
1. A method for adjusting a carrier switching threshold, wherein the method is applied to a network device, the network device includes a plurality of target cells, the target cells include at least a first carrier and a second carrier, and the method includes:
acquiring a switching threshold of the first carrier wave of a target cell;
acquiring the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching; the carrier switching comprises switching in and/or switching out, wherein the switching in comprises switching the second carrier to the first carrier, and the switching out comprises switching the first carrier to the second carrier;
comparing the average throughput rate of the UE of the target cell before carrier switching with the average throughput rate of the UE of the target cell after carrier switching, and adjusting the switching threshold of the first carrier based on a comparison result;
the obtaining the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching comprises the following steps:
acquiring an average throughput rate B of UE of a target cell before first carrier switching 1 And the average throughput W of the UE of the target cell after the first carrier is switched in 1 The method comprises the steps of carrying out a first treatment on the surface of the Or alternatively
Acquiring an average throughput rate B of UE of a target cell before a first carrier is switched 2 And the average throughput W of the UE of the target cell after the first carrier is switched 2 ；
The first carrier switching threshold includes a first carrier switching in threshold and a first carrier switching out threshold, the comparing the UE average throughput of the target cell before carrier switching with the UE average throughput of the target cell after carrier switching, and adjusting the switching threshold of the first carrier based on the comparison result includes: comparing the average throughput rate of the UE of the target cell before the first carrier is switched with the average throughput rate of the UE of the target cell after the first carrier is switched:
if the average throughput rate B of the UE of the target cell before the first carrier is switched in 1 The average throughput rate W of the UE is larger than the average throughput rate W of the target cell after the first carrier is switched in 1 Reducing the first carrier switching threshold;
if the average throughput rate B of the UE of the target cell before the first carrier is switched in 1 The average throughput W of the UE of the target cell after the first carrier is switched in is smaller than or equal to 1 Increasing or maintaining the first carrier switch-in threshold;
or,
comparing the average throughput rate of the UE of the target cell before the first carrier is switched with the average throughput rate of the UE of the target cell after the first carrier is switched:
if the average throughput rate B of the UE of the target cell before the first carrier is switched out 2 The average throughput rate W of the UE is larger than the target cell after the first carrier is switched out 2 When the first carrier switching threshold is increased;
if the average throughput rate B of the UE of the target cell before the first carrier is switched out 2 Less than or equal to the average throughput W of the UE after the first carrier is switched out 2 And maintaining the first carrier switching threshold.
2. The method as recited in claim 1, further comprising:
acquiring a carrier switching success rate of the UE and a throughput rate of the UE;
and calculating and obtaining the average throughput rate of the UE based on at least one of the carrier switching success rate of the UE and the throughput rate of the UE.
3. The method of claim 1, wherein the scaling up or maintaining the first carrier switch-in threshold comprises:
the load of the first carrier is obtained, and the load of the first carrier is compared with a preset threshold value;
if the first carrier load is greater than or equal to the preset threshold, maintaining the first carrier switch-in threshold;
and if the first carrier load is smaller than the preset threshold value, the first carrier switching threshold is adjusted to be larger.
4. A method according to claim 3, comprising:
the average throughput rate B of the UE of the target cell before the first carrier switching 1 By formula 1:obtaining;
the average throughput rate of the UE of the target cell after the first carrier is switched in is represented by formula 2:obtaining;
wherein n is the total number of UEs initiating the first carrier switch in, u j For the UE throughput rate, p, of user j in a preset time j The success rate of the carrier switching of the UE is the success rate of the carrier switching of the user j in the preset time;
the step of reducing the first carrier switching threshold is realized by 3:obtained by (1), wherein->Switching in threshold for the current first carrier, < >>For the first carrier switch-in threshold of the next carrier switch, delt (x) is the reduction coefficient, delt (x) comprises +.>
The step of increasing or maintaining the first carrier switch-in threshold passes formula 4:if PRB is SUL < delta acquisition, wherein PRB SUL Representing the load of the first carrier, delta being the load decision threshold, delt (1-PRB SUL ) Is a coefficient.
5. The method of claim 3, wherein the UE average throughput rate B of the target cell before the first carrier switch-out 2 By formula 5:obtaining;
the average throughput W of the UE of the target cell after the first carrier is switched 2 By formula 6:obtaining;
wherein m is the total number of UEs initiating the first carrier switching, u i For the UE throughput rate of user i in a preset time, p i The success rate of the carrier switching of the UE is the success rate of the carrier switching of the user i in the preset time;
said step of increasing said first carrier switch-out threshold is performed by a step of 7:completion of (i) wherein->Switching out a threshold for the current first carrier, < >>For the switching-out threshold of the next carrier switching, delt (x) is an increase coefficient, delt (x) comprises +>
6. The method according to any one of claims 1 to 5, wherein,
the first carrier comprises a SUL carrier and the second carrier comprises a non-SUL carrier.
7. A network device comprising a plurality of target cells, the target cells including at least a first carrier and a second carrier, the network device comprising:
a first obtaining module, configured to obtain a handover threshold of the first carrier of the target cell;
the second acquisition module is used for acquiring the average throughput rate of the UE of the target cell before carrier switching and the average throughput rate of the UE of the target cell after carrier switching; the carrier switching comprises switching in and/or switching out, wherein the switching in comprises switching the second carrier to the first carrier, and the switching out comprises switching the first carrier to the second carrier;
the comparison module is used for comparing the average throughput rate of the UE of the target cell before carrier switching with the average throughput rate of the UE of the target cell after carrier switching, and adjusting the switching threshold of the first carrier based on a comparison result; the comparing module 406 is further configured to compare the UE average throughput rate of the target cell before the SUL is switched in with the UE average throughput rate of the target cell after the SUL is switched in:
if the average throughput rate B of the UE of the target cell before the SUL is switched in 1 Average throughput W of UE (user equipment) greater than target cell after SUL (SUL) switching 1 When the SUL is switched into the threshold, the SUL is turned down;
if the average throughput rate B of the UE of the target cell before the SUL is switched in 1 Less than or equal to the average throughput W of the UE of the target cell after the SUL is switched in 1 When the SUL switching threshold is increased or maintained; or,
comparing the average throughput rate of the UE of the target cell before the SUL is switched out with the average throughput rate of the UE of the target cell after the SUL is switched out:
if the UE of the target cell before the SUL is switched out averagesThroughput rate B 2 Average throughput W of UE (user equipment) greater than target cell after SUL (SUL) switching 2 When the SUL switching threshold is increased;
if the average throughput rate B of the UE of the target cell before the SUL is switched out 2 Less than or equal to the average throughput W of the UE after SUL switching 2 And maintaining the SUL switching out threshold.
8. The network device of claim 7, wherein the second obtaining module is further configured to obtain an average throughput rate of the UE of the target cell before the first carrier switch-in, and an average throughput rate of the UE of the target cell after the first carrier switch-in; or alternatively
The method is used for acquiring the average throughput rate of the UE of the target cell before the first carrier is switched out and the average throughput rate of the UE of the target cell after the first carrier is switched out.
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