CN113709765A - Method and device for determining minimum access level and computer equipment - Google Patents
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Abstract
In the technical scheme of the method, the device and the computer equipment for determining the minimum access level provided by the embodiment of the invention, an uplink interference value is obtained, whether the uplink interference value is greater than or equal to a preset threshold value is judged, if the uplink interference value is judged to be greater than or equal to the preset threshold value, the minimum access level corresponding to the uplink interference value is determined according to the uplink interference value and the obtained cell configuration information, base station configuration information and UE configuration information, and the setting value of the minimum access level of the cell is accurately calculated through the uplink interference value, so that the utilization rate of cell resources can be improved while interference signals are effectively avoided by the cell.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of wireless, in particular to a method and a device for determining a minimum access level and computer equipment.
[ background of the invention ]
Most of the minimum access levels set for high-interference cells in the existing network adopt a setting mode 5-8 dB higher than the setting value of a normal cell, however, the setting mode in the related art cannot accurately calculate the minimum access level according to the direct correlation of the interference, so that interference signals cannot be effectively avoided for cells with large interference degree, and the problem of resource waste caused by ineffective utilization of cell resources for cells with small interference degree is solved.
[ summary of the invention ]
In view of this, the present invention provides a method, an apparatus, and a computer device for determining a minimum access level, in which a setting value of the minimum access level of a cell is accurately calculated through an uplink interference value, so that the cell can improve the utilization rate of cell resources while effectively avoiding interference signals.
In one aspect, an embodiment of the present invention provides a method for determining a minimum access level, including:
acquiring an uplink interference value;
judging whether the uplink interference value is greater than or equal to a preset threshold value;
and if the uplink interference value is judged to be greater than or equal to a preset threshold value, determining a minimum access level corresponding to the uplink interference value according to the uplink interference value and the acquired cell configuration information, base station configuration information and UE configuration information.
Optionally, the cell configuration information includes a cell downlink bandwidth; the base station configuration information comprises base station single-port transmitting power, base station receiving antenna gain, the power ratio of downlink B-type signals to A-type signals and the number of PRBs (physical resource blocks) allocated to the uplink of a user; the UE configuration information comprises UE transmitting antenna gain and UE maximum transmitting power;
the determining the minimum access level corresponding to the uplink interference value according to the uplink interference value and the acquired cell configuration information, base station configuration information and UE configuration information includes:
by the formula one: RS_LV_min＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PUE+10lg(NRB_UL)-Gt_UE-Gr_eNB+ NI, calculating the minimum access level corresponding to the uplink interference value,
wherein, RS_LV_minExpressed as the minimum access level, PeNB Single PortExpressed as base station single port transmit power, NRE_DLExpressed as the cell downlink bandwidth, Pb expressed as the downlink class B to class a signal power ratio, Gr_UEExpressed as UE transmit antenna gain, Gt_eNBExpressed as base station receive antenna gain, PUEExpressed as UE maximum transmit power, NRB_ULThe number of PRBs allocated to the user in the uplink is shown, and NI is shown as an uplink interference value.
Optionally, in the step of calculating by formula one: RS_LV_min＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PUE+10lg(NRB_UL)-Gt_UE-Gr_eNB+ NI, before calculating the minimum access level corresponding to the uplink interference value, further includes:
acquiring a first uplink loss and a second uplink loss;
by the first uplink loss and the second uplink loss and formula two: p ═ PUE-10lg(NRB_UL)+Gt_UE+Gr_eNB-PL_UL-La_ULThe useful signal strength is calculated, the useful signal strength is used for indicating the signal strength of the UE transmitting signals to the receiving end through space propagation,
wherein P represents the useful signal strength, PUEExpressed as UE maximum transmit power, NRB_ULNumber of physical resource blocks, G, allocated for user uplinkt_UEExpressed as UE transmit antenna gain, Gr_eNBExpressed as base station receive antenna gain, PL_ULExpressed as a first upstream loss comprising an upstream path loss, La_ULExpressed as a second uplink loss, including feeder loss, penetrationLoss, human body loss, NI is expressed as an uplink interference value.
Optionally, in the step of calculating by formula one: RS_LV_min＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PUE+10lg(NRB_UL)-Gt_UE-Gr_eNB+ NI, before calculating the minimum access level corresponding to the uplink interference value, further includes:
acquiring a first downlink loss and a second downlink loss;
by the first downlink loss and the second downlink loss and formula three: RS _ LV ═ PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PL_DL-La_DLAnd the reference signal level is calculated,
wherein RS _ LV is expressed as the reference signal level, PeNB Single PortExpressed as base station single port transmit power, NRE_DLExpressed as the cell downlink bandwidth, Pb expressed as the downlink class B to class a signal power ratio, Gr_UEExpressed as UE transmit antenna gain, Gt_eNBExpressed as base station receive antenna gain, PL_DLExpressed as a first downlink loss comprising a downlink path loss, La_DLAnd the second downlink loss is expressed as a second downlink loss, and the second downlink loss comprises feeder loss, penetration loss and human body loss.
Optionally, in the step of calculating by formula one: RS_LV_min＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PUE+10lg(NRB_UL)-Gt_UE-Gr_eNB+ NI, before calculating the minimum access level corresponding to the uplink interference value, further includes:
by simultaneous formula four: PL_DL+La_DL＝PL_UL+La_ULAnd calculating a formula I according to the formula II and the formula III.
Optionally, the method further comprises:
if the uplink interference value is judged to be smaller than the preset threshold value, the originally configured minimum access level is obtained, and the step of judging whether the uplink interference value is larger than or equal to the preset threshold value is continuously executed.
Optionally, the preset threshold is equal to-105 dBm.
In another aspect, an embodiment of the present invention provides an apparatus for determining a minimum access level, where the apparatus includes:
the acquisition module is used for acquiring an uplink interference value;
the judging module is used for judging whether the uplink interference value is greater than or equal to a preset threshold value;
and the determining module is used for determining the minimum access level corresponding to the uplink interference value according to the uplink interference value and the acquired cell configuration information, base station configuration information and UE configuration information if the uplink interference value is judged to be greater than or equal to a preset threshold value.
In another aspect, an embodiment of the present invention provides a storage medium, where the storage medium includes a stored program, and when the program runs, a device in which the storage medium is located is controlled to execute the method for determining the minimum access level.
In another aspect, an embodiment of the present invention provides a computer device, including a memory for storing information including program instructions and a processor for controlling execution of the program instructions, the program instructions being loaded by the processor and performing the steps of the method for determining a minimum access level described above.
According to the technical scheme provided by the embodiment of the invention, the uplink interference value is acquired, whether the uplink interference value is greater than or equal to the preset threshold value or not is judged, if the uplink interference value is judged to be greater than or equal to the preset threshold value, the minimum access level corresponding to the uplink interference value is determined according to the uplink interference value, the acquired cell configuration information, the base station configuration information and the UE configuration information, and the setting value of the minimum access level of the cell is accurately calculated through the uplink interference value, so that the utilization rate of cell resources can be improved while the cell effectively avoids interference signals.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a flowchart of a method for determining a minimum access level according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for determining a minimum access level according to another embodiment of the present invention;
FIG. 3 is a diagram of an edge user according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for determining a minimum access level according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a computer device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present 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 the examples of the present invention 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 type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Fig. 1 is a flowchart of a method for determining a minimum access level according to an embodiment of the present invention, as shown in fig. 1, the method includes:
And 102, judging whether the uplink interference value is greater than or equal to a preset threshold value.
And 103, if the uplink interference value is judged to be greater than or equal to the preset threshold value, determining the minimum access level corresponding to the uplink interference value according to the uplink interference value and the acquired cell configuration information, base station configuration information and UE configuration information.
According to the technical scheme provided by the embodiment of the invention, the uplink interference value is acquired, whether the uplink interference value is greater than or equal to the preset threshold value or not is judged, if the uplink interference value is judged to be greater than or equal to the preset threshold value, the minimum access level corresponding to the uplink interference value is determined according to the uplink interference value, the acquired cell configuration information, the base station configuration information and the UE configuration information, and the setting value of the minimum access level of the cell is accurately calculated through the uplink interference value, so that the utilization rate of cell resources can be improved while the cell effectively avoids interference signals.
Fig. 2 is a flowchart of a method for determining a minimum access level according to another embodiment of the present invention, as shown in fig. 2, the method includes:
In the embodiment of the invention, each step is executed by the base station.
In the embodiment of the invention, the uplink interference value comprises an interference noise value, and the uplink interference value of the cell is monitored at regular time, so that the minimum access level of the cell is dynamically set in the subsequent steps according to different uplink interference values, and the influence of the burst interference on the use perception of peripheral users can be well dealt with.
In an implementation manner, in the embodiment of the present invention, the base station may include an interference monitoring module, and the interference monitoring module periodically monitors an interference noise value of each uplink physical resource block, where the monitoring interval may be set according to a requirement, for example, the interference monitoring module sets the monitoring interval according to a level of a frequency occurrence by automatically recording a frequency of a sudden interference, where the monitoring interval is set to be smaller when the frequency is higher, and the monitoring interval is set to be larger when the frequency is lower, so that resource waste can be reduced.
In an embodiment of the present invention, for example, the predetermined threshold is equal to-105 dBm. In addition, the preset threshold may be set according to the requirement, which is not limited in the present invention.
In the embodiment of the invention, if the uplink interference value is judged to be greater than or equal to the preset threshold value, the uplink interference value is stronger at the moment, the minimum access level needs to be increased, and the coverage area of the interference cell is reduced, so that edge users with serious interference are moved to a peripheral light interference or interference-free cell, the user perception of the edge users can be improved, and interference signals can be effectively avoided. If the uplink interference value is smaller than the preset threshold value, the uplink interference value is relatively weak at the moment, and the minimum access level does not need to be increased, so that the utilization rate of cell resources can be increased.
In the embodiment of the present invention, the base station may include an automatic access threshold adjusting module, and the step 203 may be executed by the automatic access threshold adjusting module, so as to dynamically set the minimum access level of the cell according to different uplink interference values, thereby avoiding the influence of the interference signal. Specifically, when a strong interference signal occurs, the minimum access level of the cell can be dynamically increased, and the coverage of the interference cell is reduced, so that edge users with serious interference are migrated to a peripheral light interference or interference-free cell, the user perception of the edge users can be increased, and the interference signal can be effectively avoided.
In the embodiment of the present invention, step 203 may specifically include: by the formula one: RS_LV_min＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PUE+10lg(NRB_UL)-Gt_UE-Gr_eNBAnd + NI, calculating the minimum access level corresponding to the uplink interference value.
Wherein, RS_LV_minExpressed as the minimum access level, PeNB Single PortExpressed as base station single port transmit power, NRE_DLExpressed as the cell downlink bandwidth, Pb expressed as the downlink class B to class a signal power ratio, Gr_UEExpressed as UE transmit antenna gain, Gt_eNBExpressed as base station receive antenna gain, PUEExpressed as UE maximum transmit power, NRB_ULThe number of PRBs allocated to the user in the uplink is shown, and NI is shown as an uplink interference value.
In an embodiment of the present invention, the Reference Signal (RS) may include a downlink B-TYPE Signal (TYPE B, referred to as a B-TYPE symbol for short) and a TYPE-a Signal (TYPE a, referred to as a-TYPE symbol for short). That is, Pb is expressed as a power ratio of the class B symbol to the class a symbol.
The following description is made on the derivation process of the formula one:
in the signal coverage range of the LTE base station, the useful signal is radiated outward from the center of the base station and the strength of the useful signal gradually decreases in the radiation direction. Since the strength of the interference signal decreases in the direction toward the center of the base station, the most significant influence of the interference signal is mainly the edge users in the cell. For example, as shown in fig. 3, Pr is the strength of the useful signal received by the base station side from the terminal, and when the strength of the useful signal Pr > the strength of the interfering signal NI, the base station can demodulate the useful signal for the UE1 in fig. 3, and the user can communicate with the base station normally; for the UE3, after the useful signal transmitted by the UE3 reaches the receiving end of the base station, the useful signal is buried in the interference signal, so that the base station is difficult to demodulate correctly, and the user cannot communicate with the base station normally. In addition, the UE2 in fig. 3 is an edge user, users in the B area beyond the UE2 cannot normally communicate with the base station, and users in the a area with a distance less than the UE2 can normally communicate with the base station, so the downlink signal strength of the location of the edge user UE2 is the appropriate minimum access level of the cell, and by determining the minimum access level, it can be ensured that users in the B area do not access the interfering cell, so as to prevent the interference problem from affecting the perception of users in the cell. Based on the analysis, the invention can avoid or relieve the perception influence caused by the interference signal by improving the minimum access level.
Step 301, obtaining a first uplink loss and a second uplink loss.
In the embodiment of the invention, the first uplink loss comprises uplink path loss, and the second uplink loss comprises feeder loss, penetration loss and human body loss. The first uplink loss and the second uplink loss can be obtained through historical experience.
Step 203b, through the first uplink loss and the second uplink loss and the formula two: p ═ PUE-10lg(NRB_UL)+Gt_UE+Gr_eNB-PL_UL-La_ULAnd calculating the useful signal strength which is used for indicating the signal strength of the UE transmitting signals to the receiving end through space propagation.
Wherein P represents the useful signal strength, PUEExpressed as UE maximum transmit power, NRB_ULNumber of physical resource blocks, G, allocated for user uplinkt_UEExpressed as UE transmit antenna gain, Gr_eNBExpressed as base station receive antenna gain, PL_ULDenoted as first upstream loss, which includes upstream path loss, La_ULAnd the second uplink loss is expressed as a second uplink loss, the second uplink loss comprises feeder loss, penetration loss and human body loss, and NI is expressed as an uplink interference value.
In the embodiment of the invention, the minimum access level is determined by calculating the useful signal strength so as to deduce a formula I in the subsequent process. Specifically, as shown in fig. 3, in the process that the UE1 in fig. 3 propagates the transmission signal through the space to reach the receiving end of the base station, a loss may be generated, specifically including a first uplink loss and a second uplink loss. In the process that the useful signal strength is greater than or equal to the interference signal value when the useful signal strength reaches the receiving end of the base station through spatial propagation, the base station can demodulate the useful signal, and the user can normally communicate with the base station, whereas in the process that the UE1 in fig. 3 reaches the receiving end of the base station through spatial propagation, because the useful signal strength is less than the interference signal value, after the useful signal transmitted by the UE3 reaches the receiving end of the base station, the useful signal is submerged in the interference signal, the base station is difficult to correctly demodulate, and therefore the user cannot normally communicate with the base station. That is, when the useful signal strength must be greater than or equal to the uplink interference value, the user can normally communicate with the base station. Therefore, the useful signal strength can be calculated by the second formula.
And 203c, acquiring the first downlink loss and the second downlink loss.
In the embodiment of the invention, the first downlink loss comprises downlink path loss, and the second downlink loss comprises feeder loss, penetration loss and human body loss. The first downlink loss and the second downlink loss can be obtained through historical experience.
Step 203d, according to the first downlink loss, the second downlink loss and the formula three: RS _ LV ═ PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PL_DL-La_DLAnd the reference signal level is calculated,
wherein RS _ LV is expressed as the reference signal level, PeNB Single PortExpressed as base station single port transmit power, NRE_DLExpressed as the cell downlink bandwidth, Pb expressed as the downlink class B to class a signal power ratio, Gr_UEExpressed as UE transmit antenna gain, Gt_eNBExpressed as base station receive antenna gain, PL_DLExpressed as a first downlink loss comprising the downlink path loss, La_DLAnd the second downlink loss is expressed as a second downlink loss, and the second downlink loss comprises feeder loss, penetration loss and human body loss.
In the embodiment of the invention, the reference signal level corresponding to each UE can be calculated through a calculation formula of the reference signal level, and a formula I is determined through calculating the reference signal level so as to determine the minimum access level through the formula I.
Step 203e, obtaining the formula of four: PL_DL+La_DL＝PL_UL+La_ULAnd calculating a formula I according to a formula II and a formula III.
In the embodiment of the present invention, for a downlink, at a certain time of the same user, due to reciprocity between uplink and downlink of a link, a first loss PL and a second loss La experienced by the uplink and the downlink are the same. The first loss PL includes a first uplink loss and a first downlink loss, and the second loss La includes a second uplink loss and a second downlink loss. For example, as shown in FIG. 3, for an edge user UE2, PL_DL+La_DL＝PL_UL+La_ULThat is, for the edge user UE2, the sum of the first uplink loss and the second uplink loss is equal to the sum of the first downlink loss and the second downlink loss. Therefore, according to the above formula two: p ═ PUE-10lg(NRB_UL)+Gt_UE+Gr_eNB-PL_UL-La_ULNot less than NI, PL can be deduced_UL+La_UL＝PUE-10lg(NRB_UL)+Gt_UE+Gr_eNB-NI。
Further, in PL_DL+La_DL＝PL_UL+La_ULOn the basis of the formula III: RS _ LV ═ PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PL_DL-La_DLFrom which PL can be derived_DL+La_DL＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-RS_LV。
By combining the two derivation formulas, RS can be derived_LV_UE2＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PUE+10lg(NRB_UL)-Gt_UE-Gr_eNB+ NI. That is, the RS _ LV (reference signal level) of the UE2 at this time is for the presenceAnd the interference degree is the minimum access level recommended to be set by the avoidance interference signal under the cell with the NI.
And finally, the derivation formula is arranged to obtain a formula I: RS_LV_min＝RS_LV_UE2＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)-PUE+10lg(NRB_UL)+(Gr_UE-Gt_UE)+(Gt_eNB-Gr_eNB)+NI。
In the embodiment of the invention, the minimum access level is determined by a mathematical derivation formula, so that the problems that the interference influence cannot be effectively avoided and the resource waste is caused by overlarge limitation in the conventional interference cell can be effectively guided and solved.
The calculation of the minimum access level is illustrated by the following example:
for example, the downlink bandwidth of a certain cell is 20M, the single-port transmission power of a base station is 20W, the power ratio Pb of downlink B-type signals to a-type signals is 1, the number of PRBs allocated to uplink of a user is 1, the maximum transmission power of a UE is 23dBm, the difference between the gain of a receiving antenna of the base station and the gain of a transmitting antenna of the base station is 3dB, the gain of the receiving antenna of the UE is the same as the gain of the transmitting antenna of the UE, and the uplink interference value NI is-100 dBm.
At this time, the single port transmission power of the base station is 20W, which corresponds to 43dBm, obtained through the power and DB look-up table. The number of subcarriers corresponding to a downlink bandwidth of 20M is 1200. Thus, RS_LV_min43dBm-10lg (1200) +10lg (1+1) -23dBm +10lg (1) +3dB (base station transceiver gain difference) +0(UE transceiver gain difference) + (-100dBm) — 110.8dBm, and rounded up to-110 dBm.
In this embodiment of the present invention, the originally configured minimum access level may include a last calculated minimum access level, or may also include an initial default minimum access level, which is not limited in the present invention.
In the embodiment of the invention, the minimum access level is scientifically set according to different interference degrees, so that the situation that the minimum access level is set too low and part of edge users cannot normally communicate under the influence of interference is avoided; and the system resource waste is caused by the fact that the user cannot access the cell due to the over-high setting. Compared with the related art that the setting mode that the setting value of the minimum access level is 5-8 dB higher than the setting value of a normal cell is mostly adopted by the minimum access level set for a high-interference cell, the method for determining the minimum access level provided by the embodiment of the invention accurately calculates the setting value of the minimum access level of the cell through the uplink interference value, so that the cell can effectively avoid interference signals and improve the utilization rate of cell resources.
According to the technical scheme provided by the embodiment of the invention, the uplink interference value is acquired, whether the uplink interference value is greater than or equal to the preset threshold value or not is judged, if the uplink interference value is judged to be greater than or equal to the preset threshold value, the minimum access level corresponding to the uplink interference value is determined according to the uplink interference value, the acquired cell configuration information, the base station configuration information and the UE configuration information, and the setting value of the minimum access level of the cell is accurately calculated through the uplink interference value, so that the utilization rate of cell resources can be improved while the cell effectively avoids interference signals.
Fig. 4 is a schematic structural diagram of an apparatus for determining a minimum access level according to an embodiment of the present invention, as shown in fig. 4, the apparatus includes: the device comprises an acquisition module 11, a judgment module 12 and a determination module 13.
The obtaining module 11 is configured to obtain an uplink interference value.
The judging module 12 is configured to judge whether the uplink interference value is greater than or equal to a preset threshold.
The determining module 13 is configured to determine, if the determining module 12 determines that the uplink interference value is greater than or equal to a preset threshold, a minimum access level corresponding to the uplink interference value according to the uplink interference value and the acquired cell configuration information, base station configuration information, and UE configuration information.
In the embodiment of the invention, the base station configuration information comprises base station single-port transmitting power, base station receiving antenna gain, the power ratio of downlink B-type signals to A-type signals or the number of PRBs (physical resource blocks) allocated by a user in an uplink manner; the UE configuration information comprises UE transmitting antenna gain and UE maximum transmitting power;
the determining module 13 of the apparatus specifically includes: by the formula one: RS_LV_min＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PUE+10lg(NRB_UL)-Gt_UE-Gr_eNB+ NI, calculating the minimum access level corresponding to the uplink interference value,
wherein, RS_LV_minExpressed as the minimum access level, PeNB Single PortExpressed as base station single port transmit power, NRE_DLExpressed as the cell downlink bandwidth, Pb expressed as the downlink class B to class a signal power ratio, Gr_UEExpressed as UE transmit antenna gain, Gt_eNBExpressed as base station receive antenna gain, PUEExpressed as UE maximum transmit power, NRB_ULThe number of PRBs allocated to the user in the uplink is shown, and NI is shown as an uplink interference value.
In the embodiment of the present invention, the apparatus further includes: a calculation module 14.
The obtaining module 11 is further configured to obtain a first uplink loss and a second uplink loss.
The calculating module 14 is configured to calculate, by using the first uplink loss and the second uplink loss and formula two: p ═ PUE-10lg(NRB_UL)+Gt_UE+Gr_eNB-PL_UL-La_ULThe useful signal strength is calculated, the useful signal strength is used for indicating the signal strength of the UE transmitting signals to the receiving end through space propagation,
wherein P represents the useful signal strength, PUEExpressed as UE maximum transmit power, NRB_ULNumber of physical resource blocks, G, allocated for user uplinkt_UEExpressed as UE transmit antenna gain, Gr_eNBExpressed as base station receive antenna gain, PL_ULExpressed as a first upstream loss comprising an upstream path loss, La_ULAnd the second uplink loss is represented as a second uplink loss, the second uplink loss comprises feeder loss, penetration loss and human body loss, and NI is represented as an uplink interference value.
In the embodiment of the present invention, the apparatus further includes:
the obtaining module 11 is further configured to obtain a first downlink loss and a second downlink loss.
The calculating module 14 is further configured to calculate, by using the first downlink loss and the second downlink loss and formula three: RS _ LV ═ PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PL_DL-La_DLAnd the reference signal level is calculated,
wherein RS _ LV is expressed as the reference signal level, PeNB Single PortExpressed as base station single port transmit power, NRE_DLExpressed as the cell downlink bandwidth, Pb expressed as the downlink class B to class a signal power ratio, Gr_UEExpressed as UE transmit antenna gain, Gt_eNBExpressed as base station receive antenna gain, PL_DLExpressed as a first downlink loss comprising a downlink path loss, La_DLAnd the second downlink loss is expressed as a second downlink loss, and the second downlink loss comprises feeder loss, penetration loss and human body loss.
In the embodiment of the present invention, the apparatus further includes:
the calculation module 14 is further configured to calculate the value by using the simultaneous formula four: PL_DL+La_DL＝PL_UL+La_ULAnd calculating a formula I according to the formula II and the formula III.
In the present invention forty, the apparatus further includes:
the obtaining module 11 is further configured to, if the determining module 12 determines that the uplink interference value is smaller than the preset threshold, obtain the originally configured minimum access level, and continue to execute the step of determining, by the determining module 12, whether the uplink interference value is greater than or equal to the preset threshold.
In the embodiment of the invention, the preset threshold is equal to-105 dBm.
According to the technical scheme provided by the embodiment of the invention, the uplink interference value is acquired, whether the uplink interference value is greater than or equal to the preset threshold value or not is judged, if the uplink interference value is judged to be greater than or equal to the preset threshold value, the minimum access level corresponding to the uplink interference value is determined according to the uplink interference value, the acquired cell configuration information, the base station configuration information and the UE configuration information, and the setting value of the minimum access level of the cell is accurately calculated through the uplink interference value, so that the utilization rate of cell resources can be improved while the cell effectively avoids interference signals.
An embodiment of the present invention provides a storage medium, where the storage medium includes a stored program, where, when the program runs, a device in which the storage medium is located is controlled to execute each step of the above-described embodiment of the method for determining a minimum access level, and for specific description, reference may be made to the above-described embodiment of the method for determining a minimum access level.
An embodiment of the present invention provides a computer device, including a memory for storing information including program instructions and a processor for controlling execution of the program instructions, where the program instructions are loaded and executed by the processor to implement the steps of the method for determining a minimum access level described above. For a detailed description, reference may be made to the above-described embodiments of the method for determining the minimum access level.
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 4 of this embodiment includes: a processor 41, a memory 42, and a computer program 43 stored in the memory 42 and capable of running on the processor 41, where the computer program 43 when executed by the processor 41 implements the method for determining the minimum access level in the embodiment, and for avoiding repetition, it is not described herein repeatedly. Alternatively, the computer program is executed by the processor 41 to implement the functions of each model/unit in the apparatus for determining the minimum access level in the embodiment, which are not described herein for avoiding redundancy.
The computer device 4 includes, but is not limited to, a processor 41, a memory 42. Those skilled in the art will appreciate that fig. 5 is merely an example of computer device 4 and is not intended to limit computer device 4 and may include more or fewer components than shown, or some of the components may be combined, or different components, e.g., computer device 4 may also include input-output devices, network access devices, buses, etc.
The Processor 41 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 42 may be an internal storage unit of the computer device 4, such as a hard disk or a memory of the computer device 4. The memory 42 may also be an external storage device of the computer device 4, such as a plug-in hard disk provided on the computer device 4, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory 42 may also include both internal storage units of the computer device 4 and external storage devices. The memory 42 is used for storing computer programs and other programs and data required by the computer device 4. The memory 42 may also be used to temporarily store data that has been output or is to be output.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit 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 device (which may be a personal computer, a server, or a network device) or a Processor (Processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for determining a minimum access level, comprising:
acquiring an uplink interference value;
judging whether the uplink interference value is greater than or equal to a preset threshold value;
and if the uplink interference value is judged to be greater than or equal to a preset threshold value, determining a minimum access level corresponding to the uplink interference value according to the uplink interference value and the acquired cell configuration information, base station configuration information and UE configuration information.
2. The method of claim 1, wherein the cell configuration information comprises a cell downlink bandwidth; the base station configuration information comprises base station single-port transmitting power, base station receiving antenna gain, the power ratio of downlink B-type signals to A-type signals and the number of PRBs (physical resource blocks) allocated to the uplink of a user; the UE configuration information comprises UE transmitting antenna gain and UE maximum transmitting power;
the determining the minimum access level corresponding to the uplink interference value according to the uplink interference value and the acquired cell configuration information, base station configuration information and UE configuration information includes:
by the formula one: RS_LV_min＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PUE+10lg(NRB_UL)-Gt_UE-Gr_eNB+ NI, calculating the minimum access level corresponding to the uplink interference value,
wherein, RS_LV_minExpressed as the minimum access level, PeNB Single PortExpressed as base station single port transmit power, NRE_DLExpressed as the cell downlink bandwidth, Pb expressed as the downlink class B to class a signal power ratio, Gr_UEExpressed as UE transmit antenna gain, Gt_eNBExpressed as base station receive antenna gain, PUEExpressed as UE maximum transmit power, NRB_ULThe number of PRBs allocated to the user in the uplink is shown, and NI is shown as an uplink interference value.
3. The method of claim 2, wherein the step of determining the average value of the first and second values is performed by the formula one: RS_LV_min＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PUE+10lg(NRB_UL)-Gt_UE-Gr_eNB+ NI, before calculating the minimum access level corresponding to the uplink interference value, further includes:
acquiring a first uplink loss and a second uplink loss;
by the first uplink loss and the second uplink loss and formula two: p ═ PUE-10lg(NRB_UL)+Gt_UE+Gr_eNB-PL_UL-La_ULThe useful signal strength is calculated, the useful signal strength is used for indicating the signal strength of the UE transmitting signals to the receiving end through space propagation,
wherein P represents the useful signal strength, PUEExpressed as UE maximum transmit power, NRB_ULNumber of physical resource blocks, G, allocated for user uplinkt_UEExpressed as UE transmit antenna gain, Gr_eNBExpressed as base station receive antenna gain, PL_ULExpressed as a first upstream loss comprising an upstream path loss, La_ULAnd the second uplink loss is represented as a second uplink loss, the second uplink loss comprises feeder loss, penetration loss and human body loss, and NI is represented as an uplink interference value.
4. The method of claim 3, wherein, in said step of calculating, by formula one: RS_LV_min＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PUE+10lg(NRB_UL)-Gt_UE-Gr_eNB+ NI, before calculating the minimum access level corresponding to the uplink interference value, further includes:
acquiring a first downlink loss and a second downlink loss;
by the first downlink loss and the second downlink loss and formula three: RS _ LV ═ PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PL_DL-La_DLAnd the reference signal level is calculated,
wherein RS _ LV is expressed as the reference signal level, PeNB Single PortExpressed as base station single port transmit power, NRE_DLExpressed as the cell downlink bandwidth, Pb expressed as the downlink class B to class a signal power ratio, Gr_UEDenoted as UE transmissionsAntenna gain, Gt_eNBExpressed as base station receive antenna gain, PL_DLExpressed as a first downlink loss comprising a downlink path loss, La_DLAnd the second downlink loss is expressed as a second downlink loss, and the second downlink loss comprises feeder loss, penetration loss and human body loss.
5. The method of claim 4, wherein, in said step of calculating, by formula one: RS_LV_min＝PeNB Single Port-10lg(NRE_DL)+10lg(1+Pb)+Gr_UE+Gt_eNB-PUE+10lg(NRB_UL)-Gt_UE-Gr_eNB+ NI, before calculating the minimum access level corresponding to the uplink interference value, further includes:
by simultaneous formula four: PL_DL+La_DL＝PL_UL+La_ULAnd calculating a formula I according to the formula II and the formula III.
6. The method of claim 1, further comprising:
if the uplink interference value is judged to be smaller than the preset threshold value, the originally configured minimum access level is obtained, and the step of judging whether the uplink interference value is larger than or equal to the preset threshold value is continuously executed.
7. The method according to claim 1, characterized in that said preset threshold value is equal to-105 dBm.
8. An apparatus for determining a minimum access level, comprising:
the acquisition module is used for acquiring an uplink interference value;
the judging module is used for judging whether the uplink interference value is greater than or equal to a preset threshold value;
and the determining module is used for determining the minimum access level corresponding to the uplink interference value according to the uplink interference value and the acquired cell configuration information, base station configuration information and UE configuration information if the uplink interference value is judged to be greater than or equal to a preset threshold value.
9. A storage medium, characterized in that the storage medium comprises a stored program, wherein when the program is run, a device in which the storage medium is located is controlled to execute the method for determining a minimum access level according to any one of claims 1 to 7.
10. A computer device comprising a memory for storing information including program instructions and a processor for controlling the execution of the program instructions, characterized in that the program instructions are loaded and executed by the processor to implement the steps of the method for determining a minimum access level according to any one of claims 1 to 7.
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| CN115087013A (en) * | 2022-06-20 | 2022-09-20 | 中国联合网络通信集团有限公司 | Uplink signal detection method and device of flexible frame structure simulation system |
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