CN113709765B - Method and device for determining minimum access level and computer equipment - Google Patents
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- H—ELECTRICITY
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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, the uplink interference value is obtained, whether the uplink interference value is larger than or equal to the preset threshold value is judged, if the uplink interference value is larger 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 cell can effectively avoid interference signals and the utilization rate of cell resources can be improved.
Description
[ field of technology ]
The present invention relates to the field of wireless technologies, and in particular, to a method, an apparatus, and a computer device for determining a minimum access level.
[ background Art ]
At present, most of the minimum access level set for the high-interference cell in the current network adopts a setting mode which is 5-8 dB higher than the setting value of the normal cell, however, the setting mode in the related art cannot accurately calculate the size of the minimum access level according to the direct correlation of the size of the interference, so that the problem that interference signals cannot be effectively avoided for the cell with larger interference degree, and the problem of resource waste caused by invalid utilization of cell resources for the cell with smaller interference degree is caused.
[ invention ]
In view of the above, the present invention provides a method, an apparatus and a computer device for determining a minimum access level, which accurately calculate a setting value of a minimum access level of a cell through an uplink interference value, so that the cell can effectively avoid interference signals and improve the utilization rate of cell resources.
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 larger 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 the minimum access level corresponding to the uplink interference value according to the uplink interference value, the acquired cell configuration information, the base station configuration information and the 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, downlink B-type signal and A-type signal power ratio and the number of PRBs (physical resource blocks) distributed by users in the uplink; 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 (Reed-Solomon) _LV_min ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_eNB +NI, calculating the minimum access level corresponding to the uplink interference value,
wherein, RS _LV_min Expressed as minimum access level, P eNB single port Represented as base station single port transmit power, N RE_DL Expressed as cell downlink bandwidth, pb expressed as downlink class B signal to class A signal power ratio, G r_UE Denoted as UE receive antenna gain, G t_eNB Denoted as base station transmit antenna gain, P UE Expressed as UE maximum transmit power, N RB_UL The number of PRBs allocated for uplink to the user is represented, and NI is represented as an uplink interference value.
Optionally, in the passing formula one: RS (Reed-Solomon) _LV_min ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_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;
and through the first uplink loss and the second uplink loss, formula two: p=p UE -10lg(N RB_UL )+G t_UE +G r_eNB -PL _UL -La _UL Not less than NI, calculating useful signal intensity for indicating signal intensity of UE transmitting signal reaching receiving end through space propagation,
wherein P is expressed as useful signal strength, P UE Expressed as UE maximum transmit power, N RB_UL G represents the number of physical resource blocks allocated for the uplink of the user t_UE Denoted as UE transmit antenna gain, G r_eNB Denoted as base station receive antenna gain, PL _UL Represented as a first upstream loss including an upstream path loss, la _UL Expressed as a second uplink loss, including feeder loss, penetration loss, body loss, and NI expressed as an uplink interference value.
Optionally, in the passing formula one: RS (Reed-Solomon) _LV_min ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_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;
through the first and second downstream losses and equation three: rs_lv=p eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -PL _DL -La _DL The reference signal level is calculated and,
wherein RS_LV is expressed as reference signal level, P eNB single port Represented as base station single port transmit power, N RE_DL Expressed as cell downlink bandwidth, pb expressed as downlink class B signal to class A signal power ratio, G r_UE Denoted as UE receive antenna gain, G t_eNB Denoted as base station transmit antenna gain, PL _DL Expressed as a first downlink loss including a downlink path loss, la _DL And the second downlink loss is expressed as a second downlink loss, and the second downlink loss comprises feeder line loss, penetration loss and human body loss.
Optionally, in the passing formula one: RS (Reed-Solomon) _LV_min ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_eNB +NI, before calculating the minimum access level corresponding to the uplink interference value, further includes:
by the simultaneous formula four: PL (PL) _DL +La _DL ＝PL _UL +La _UL And calculating a formula I by using 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 a device for determining a minimum access level, where the device includes:
the acquisition module is used for acquiring the uplink interference value;
the judging module is used for judging whether the uplink interference value is larger 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.
On the other hand, the embodiment of the invention provides a storage medium, which comprises a stored program, wherein the device where the storage medium is located is controlled to execute the method for determining the minimum access level when the program runs.
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, where the program instructions are loaded by the processor and perform the steps of the method for determining a minimum access level as described above.
In the technical scheme provided by the embodiment of the invention, the uplink interference value is obtained, whether the uplink interference value is larger than or equal to the preset threshold value is judged, if the uplink interference value is judged to be larger 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 cell can effectively avoid interference signals and the utilization rate of cell resources can be improved.
[ 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 flow chart 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 schematic diagram of an edge user according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a minimum access level determining device 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 ] 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.
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, where the method includes:
and 101, acquiring an uplink interference value.
Step 102, judging whether the uplink interference value is greater than or equal to a preset threshold.
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, the acquired cell configuration information, the base station configuration information and the UE configuration information.
In the technical scheme provided by the embodiment of the invention, the uplink interference value is obtained, whether the uplink interference value is larger than or equal to the preset threshold value is judged, if the uplink interference value is judged to be larger 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 cell can effectively avoid interference signals and the utilization rate of cell resources can be improved.
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:
step 201, an uplink interference value is obtained.
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 the 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 according to different uplink interference values in the subsequent steps, and the influence of the sudden interference on the use perception of the peripheral users can be well dealt with.
In an embodiment of the present invention, in one implementation manner, the base station may include an interference monitoring module, where the interference noise value of each physical resource block in the uplink is monitored periodically by the interference monitoring module, where the monitoring interval may be set according to requirements, for example, the interference monitoring module sets the monitoring interval according to the occurrence of the frequency by automatically recording the frequency of the bursty interference, where the monitoring interval is set smaller when the frequency is higher, and the monitoring interval is set larger when the frequency is lower, so as to reduce resource waste.
Step 202, judging whether the uplink interference value is greater than or equal to a preset threshold value, if so, executing step 203; if not, go to step 204.
In an embodiment of the invention, for example, the preset threshold is equal to-105 dBm. In addition, the preset threshold value can be set according to the requirement, which is not limited in the 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 is required to be improved, and the coverage area of the interference cell is reduced, so that the edge user with serious interference is migrated to the surrounding light interference or non-interference cell, thereby improving the user perception of the edge user and effectively avoiding interference signals. If the uplink interference value is judged to be smaller than the preset threshold value, the uplink interference value is weaker at the moment, and the minimum access level does not need to be improved, so that the utilization rate of the cell resources can be improved.
Step 203, determining a minimum access level corresponding to the uplink interference value according to the uplink interference value, the acquired cell configuration information, the base station configuration information and the UE configuration information.
In the embodiment of the present invention, the base station may include an automatic adjustment access threshold module, and step 203 may be executed by the automatic adjustment access threshold module, so as to dynamically set a minimum access level of a cell according to different uplink interference values, thereby avoiding the influence of interference signals. Specifically, when a strong interference signal occurs, the minimum access level of the cell can be dynamically improved, and the coverage area of the interference cell is reduced, so that edge users with serious interference can be migrated to surrounding light interference or interference-free cells, the user perception of the edge users can be improved, and the interference signal can be effectively avoided.
In an embodiment of the present invention, step 203 may specifically include: by the formula one: RS (Reed-Solomon) _LV_min ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_eNB +NI, and calculating the minimum access level corresponding to the uplink interference value.
Wherein, RS _LV_min Expressed as minimum access level, P eNB single port Represented as base station single port transmit power, N RE_DL Expressed as cell downlink bandwidth, pb expressed as downlink class B signal to class A signal power ratio, G r_UE Denoted as UE receive antenna gain, G t_eNB Denoted as base station transmit antenna gain, P UE Expressed as UE maximum transmit power, N RB_UL The number of PRBs allocated for uplink to the user is represented, and NI is represented as an uplink interference value.
In the embodiment of the present invention, the Reference Signal (RS) may include a downlink B-TYPE Signal (TYPE B, B-TYPE symbol) and an a-TYPE Signal (TYPE a, a-TYPE symbol). That is, pb is expressed as a power ratio of a class B symbol to a class a symbol.
The following description is made of the derivation process of equation one:
within the signal coverage of an LTE base station, the useful signal radiates outward from the center of the base station and the useful signal strength gradually decreases in the radiation direction. Since the strength of the interference signal decreases toward the center of the base station, the interference signal affects the edge users in the cell to the greatest extent. For example, as shown in fig. 3, pr is the useful signal strength of the base station receiving the signal transmitted by the terminal, when the useful signal strength Pr > the interference signal strength NI, for UE1 in fig. 3, the base station can demodulate the useful signal, and the user can normally communicate with the base station; for the UE3, 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, 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, the users in the B area exceeding the UE2 cannot normally communicate with the base station, and the users in the a area having a distance smaller than the UE2 can normally communicate with the base station, so that 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 the users in the B area do not access the interfering cell, so as to prevent the interference problem from affecting the perception of the edge user 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, acquiring 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 line loss, penetration loss and human body loss. The first upstream loss and the second upstream loss can be obtained through historical experience.
Step 203b, passing the first upstream loss and the second upstream loss through formula two: p=p UE -10lg(N RB_UL )+G t_UE +G r_eNB -PL _UL -La _UL Not less than NI, calculating useful signal strength for indicating the space transmission of UE transmitting signalThe signal strength to the receiving end is broadcast.
Wherein P is expressed as useful signal strength, P UE Expressed as UE maximum transmit power, N RB_UL G represents the number of physical resource blocks allocated for the uplink of the user t_UE Denoted as UE transmit antenna gain, G r_eNB Denoted as base station receive antenna gain, PL _UL Expressed as a first upstream loss including upstream path loss, la _UL Denoted as second uplink loss, including feeder loss, penetration loss, human loss, and NI denoted as uplink interference value.
In the embodiment of the invention, the minimum access level is determined by calculating the useful signal strength so that a formula I is deduced in the subsequent process. Specifically, as shown in fig. 3, in the process of transmitting a signal to the receiving end of the base station through space propagation, the UE1 in fig. 3 generates a loss, which specifically includes a first uplink loss and a second uplink loss. In the process that the transmitted signal reaches the receiving end of the base station through space propagation, the useful signal strength is greater than or equal to the interference signal value, the base station can demodulate the useful signal, the user can normally communicate with the base station, and in the process that the UE1 in fig. 3 reaches the receiving end of the base station through space propagation, the useful signal strength is smaller than the interference signal value, so that 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, the user can normally communicate with the base station only when the useful signal strength must be greater than or equal to the uplink interference value. Therefore, the useful signal strength can be calculated by the above formula two.
Step 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 line loss, penetration loss and human body loss. Wherein the first downstream loss and the second downstream loss can be obtained through historical experience.
Step 203d, passing the first downlink loss and the second downlink loss through formula three: RS (Reed-Solomon)_LV＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -PL _DL -La _DL The reference signal level is calculated and,
wherein RS_LV is expressed as reference signal level, P eNB single port Represented as base station single port transmit power, N RE_DL Expressed as cell downlink bandwidth, pb expressed as downlink class B signal to class A signal power ratio, G r_UE Denoted as UE receive antenna gain, G t_eNB Denoted as base station transmit antenna gain, PL _DL Expressed as a first downlink loss, including a downlink path loss, la _DL The second downlink loss is expressed as a second downlink loss, and the second downlink loss comprises feeder line loss, penetration loss and human body loss.
In the embodiment of the invention, the reference signal level corresponding to each UE can be calculated by a calculation formula of the reference signal level, and the formula I can be determined by calculating the reference signal level so as to determine the minimum access level by the formula I through a mathematical derivation formula.
Step 203e, through simultaneous equations four: PL (PL) _DL +La _DL ＝PL _UL +La _UL And calculating a formula I by using the formula II and the formula III.
In the embodiment of the present invention, for the downlink, at a certain moment of the same user, the first loss PL and the second loss La experienced by the uplink and the downlink are the same due to the uplink and downlink reciprocity of the link. 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 edge user UE2, PL _DL +La _DL ＝PL _UL +La _UL I.e. for the edge user UE2 the sum of the first and second uplink losses is equal to the sum of the first and second downlink losses. Thus, according to equation two above: p=p UE -10lg(N RB_UL )+G t_UE +G r_eNB -PL _UL -La _UL Not less than NI, PL can be deduced _UL +La _UL ＝P UE -10lg(N RB_UL )+G t_UE +G r_eNB -NI。
Further, in PL _DL +La _DL ＝PL _UL +La _UL Based on the above formula three: rs_lv=p eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -PL _DL -La _DL PL can be deduced _DL +La _PL ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -RS_LV。
By combining the two derivation formulas, RS can be derived _LV_UE2 ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_eNB +NI. That is, rs_lv (reference signal level) of UE2 at this time is the minimum access level recommended to avoid interference signals in the cell where the interference level NI exists.
And finally, sorting the deduction formula to obtain a formula I: RS (Reed-Solomon) _LV_min ＝RS _LV_UE2 ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)-P UE +10lg(N RB_UL )+(G r_UE -G t_UE )+(G t_eNB -G r_eNB )+NI。
In the embodiment of the invention, the minimum access level is determined by a mathematical derivation formula, so that the problem that the existing interference cell cannot effectively avoid interference influence and resource waste caused by overlarge limitation 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 transmitting power of the base station is 20W, the power ratio Pb of the downlink B-type signal to the a-type signal is 1, the number of PRBs allocated for uplink of the user is 1, the maximum transmitting power of the UE is 23dBm, the difference between the base station receiving antenna gain and the base station transmitting antenna gain is 3db, the UE receiving antenna gain is the same as the UE transmitting antenna gain, 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 by the power and DB lookup table. The number of subcarriers corresponding to the downlink bandwidth of 20M is 1200. Thus, RS _LV_min 43dBm-10lg (1200) +10lg (1+1) -23dbm+10lg (1) +3dB (base station transceiver gain difference) +0 (UE transceiver gain difference) +(-100 dBm) = -110.8dBm, rounded up to-110 dBm.
Step 204, the originally configured minimum access level is obtained, and step 202 is continuously performed.
In the embodiment of the present invention, the originally configured minimum access level may include the last calculated minimum access level, or may 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 partial edge users are affected by interference and cannot normally communicate is avoided; and the system resource waste is caused by the fact that the user cannot access the cell due to the excessively high setting. Compared with the prior art that the setting mode of setting the minimum access level of the high-interference cell is adopted for the most part, the setting mode is 5-8 dB higher than the setting mode of the normal cell, the method for determining the minimum access level provided by the embodiment of the invention can accurately calculate 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 the utilization rate of cell resources can be improved.
In the technical scheme provided by the embodiment of the invention, the uplink interference value is obtained, whether the uplink interference value is larger than or equal to the preset threshold value is judged, if the uplink interference value is judged to be larger 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 cell can effectively avoid interference signals and the utilization rate of cell resources can be improved.
Fig. 4 is a schematic structural diagram of a minimum access level determining apparatus according to an embodiment of the present invention, as shown in fig. 4, the apparatus includes: an acquisition module 11, a judgment module 12 and a determination module 13.
The acquiring module 11 is configured to acquire 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, downlink B-type signal to A-type signal power ratio or user uplink allocated PRB number; the UE configuration information comprises UE transmitting antenna gain and UE maximum transmitting power;
the determining module 13 of the device specifically includes: by the formula one: RS (Reed-Solomon) _LV_min ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_eNB +NI, calculating the minimum access level corresponding to the uplink interference value,
wherein, RS _LV_min Expressed as minimum access level, P eNB single port Represented as base station single port transmit power, N RE_DL Expressed as cell downlink bandwidth, pb expressed as downlink class B signal to class A signal power ratio, G r_UE Denoted as UE receive antenna gain, G t_eNB Denoted as base station transmit antenna gain, P UE Expressed as UE maximum transmit power, N RB_UL The number of PRBs allocated for uplink to the user is represented, and NI is represented as an uplink interference value.
In the embodiment of the invention, the device further comprises: a calculation module 14.
The acquiring module 11 is further configured to acquire the first uplink loss and the second uplink loss.
The calculation module 14 is used for general purposeAnd (c) passing the first uplink loss and the second uplink loss through a formula II: p=p UE -10lg(N RB_UL )+G t_UE +G r_eNB -PL _UL -La _UL Not less than NI, calculating useful signal intensity for indicating signal intensity of UE transmitting signal reaching receiving end through space propagation,
wherein P is expressed as useful signal strength, P UE Expressed as UE maximum transmit power, N RB_UL G represents the number of physical resource blocks allocated for the uplink of the user t_UE Denoted as UE transmit antenna gain, G r_eNB Denoted as base station receive antenna gain, PL _UL Represented as a first upstream loss including an upstream path loss, la _UL Expressed as a second uplink loss, including feeder loss, penetration loss, body loss, and NI expressed as an uplink interference value.
In the embodiment of the invention, the device further comprises:
the acquiring module 11 is further configured to acquire the first downlink loss and the second downlink loss.
The calculation module 14 is further configured to pass the first downlink loss and the second downlink loss and equation three: rs_lv=p eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -PL _DL -La _DL The reference signal level is calculated and,
wherein RS_LV is expressed as reference signal level, P eNB single port Represented as base station single port transmit power, N RE_DL Expressed as cell downlink bandwidth, pb expressed as downlink class B signal to class A signal power ratio, G r_UE Denoted as UE receive antenna gain, G t_eNB Denoted as base station transmit antenna gain, PL _DL Expressed as a first downlink loss including a downlink path loss, la _DL And the second downlink loss is expressed as a second downlink loss, and the second downlink loss comprises feeder line loss, penetration loss and human body loss.
In the embodiment of the invention, the device further comprises:
the calculation module 14 is also configured to pass through the simultaneous equations four: PL (PL) _DL +La _DL ＝PL _UL +La _UL And calculating a formula I by using the formula II and the formula III.
In forty of the present invention, the apparatus further comprises:
the obtaining module 11 is further configured to obtain the originally configured minimum access level if the determining module 12 determines that the uplink interference value is smaller than the preset threshold, and continue to execute the step of determining whether the uplink interference value is greater than or equal to the preset threshold by the determining module 12.
In the embodiment of the invention, the preset threshold value is equal to-105 dBm.
In the technical scheme provided by the embodiment of the invention, the uplink interference value is obtained, whether the uplink interference value is larger than or equal to the preset threshold value is judged, if the uplink interference value is judged to be larger 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 cell can effectively avoid interference signals and the utilization rate of cell resources can be improved.
The embodiment of the invention provides a storage medium, which comprises a stored program, wherein the program is used for controlling a device where the storage medium is located to execute the steps of the embodiment of the method for determining the minimum access level, and the specific description can be seen from the embodiment of the method for determining the minimum access level.
The embodiment of the invention 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 method for determining the minimum access level when being loaded and executed by the processor. For a specific description, reference may be made to embodiments of the method of determining the minimum access level described above.
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: the processor 41, the memory 42, and the 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 is not described herein in detail to avoid repetition. Alternatively, the computer program when executed by the processor 41 implements the functions of each model/unit in the determining device applied to the minimum access level in the embodiment, and in order to avoid repetition, it is not described in detail herein.
The computer device 4 includes, but is not limited to, a processor 41, a memory 42. It will be appreciated by those skilled in the art that fig. 5 is merely an example of computer device 4 and is not limiting of computer device 4, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., computer device 4 may also include input and output devices, network access devices, buses, etc.
The processor 41 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 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, 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 4. Further, the memory 42 may also include both internal storage units and external storage devices of the computer device 4. The memory 42 is used to store 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 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 device (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 (9)
1. A method for determining a minimum access level, comprising:
acquiring an uplink interference value;
judging whether the uplink interference value is larger than or equal to a preset threshold value;
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;
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, downlink B-type signal and A-type signal power ratio and the number of PRBs (physical resource blocks) distributed by users in the uplink; 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 (Reed-Solomon) _LV_min ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_eNB +NI, calculating the minimum access level corresponding to the uplink interference value, RS _LV_min Expressed as minimum access level, P eNB single port Expressed as single-port transmit power of base stationRate, N RE_DL Expressed as cell downlink bandwidth, pb expressed as downlink class B signal to class A signal power ratio, G r_UE Denoted as UE receive antenna gain, G t_eNB Denoted as base station transmit antenna gain, P UE Expressed as UE maximum transmit power, N RB_UL G represents the number of PRBs (physical resource blocks) allocated to the uplink of the user t_UE Denoted as UE transmit antenna gain, G r_eNB Denoted as base station receive antenna gain, and NI is denoted as uplink interference value.
2. The method of claim 1, wherein, in the passing of formula one: RS (Reed-Solomon) _LV_min ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_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;
and through the first uplink loss and the second uplink loss, formula two: p=p UE -10lg(N RB_UL )+G t_UE +G r_eNB -PL _UL -La _UL Not less than NI, calculating useful signal intensity for indicating signal intensity of UE transmitting signal reaching receiving end through space propagation,
wherein P is expressed as useful signal strength, P UE Expressed as UE maximum transmit power, N RB_UL G represents the number of physical resource blocks allocated for the uplink of the user t_UE Denoted as UE transmit antenna gain, G r_eNB Denoted as base station receive antenna gain, PL _UL Represented as a first upstream loss including an upstream path loss, la _UL Expressed as a second uplink loss, including feeder loss, penetration loss, body loss, and NI expressed as an uplink interference value.
3. The method of claim 2, wherein, in the passing of formula one: RS (Reed-Solomon) _LV_min ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_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;
through the first and second downstream losses and equation three: rs_lv=p eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -PL _DL -La _DL The reference signal level is calculated and,
wherein RS_LV is expressed as reference signal level, P eNB single port Represented as base station single port transmit power, N RE_DL Expressed as cell downlink bandwidth, pb expressed as downlink class B signal to class A signal power ratio, G r_UE Denoted as UE receive antenna gain, G t_eNB Denoted as base station transmit antenna gain, PL _DL Expressed as a first downlink loss including a downlink path loss, la _DL Expressed as a second downstream loss, which includes feeder loss, penetration loss, human body loss.
4. A method according to claim 3, wherein, in said passing through equation one: RS (Reed-Solomon) _LV_min ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_eNB +NI, before calculating the minimum access level corresponding to the uplink interference value, further includes:
by the simultaneous formula four: PL (PL) _DL +La _DL ＝PL _UL +La _UL And calculating a formula I by using the formula II and the formula III.
5. The method as recited in 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.
6. The method of claim 1, wherein the preset threshold is equal to-105 dBm.
7. A minimum access level determining apparatus, comprising:
the acquisition module is used for acquiring the uplink interference value;
the judging module is used for judging whether the uplink interference value is larger than or equal to a preset threshold value;
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;
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, downlink B-type signal and A-type signal power ratio and the number of PRBs (physical resource blocks) distributed by users in the uplink; the UE configuration information comprises UE transmitting antenna gain and UE maximum transmitting power;
the determining module is specifically configured to:
by the formula one: RS (Reed-Solomon) _LV_min ＝P eNB single port -10lg(N RE_DL )+10lg(1+Pb)+G r_UE +G t_eNB -P UE +10lg(N RB_UL )-G t_UE -G r_eNB +NI, calculating the minimum access level corresponding to the uplink interference value, RS _LV_min Expressed as minimum access level, P eNB single port Represented as base station single port transmit power, N RE_DL Expressed as cell downlink bandwidth, pb expressed as downlink class B signal to class A signal power ratio, G r_UE Denoted as UE receive antenna gain, G t_eNB Denoted as base station transmit antenna gain, P UE Expressed as UE maximum transmit power, N RB_UL G represents the number of PRBs (physical resource blocks) allocated to the uplink of the user t_UE Denoted as UE transmit antenna gain, G r_eNB Denoted as base station receive antenna gain, and NI is denoted as uplink interference value.
8. A storage medium comprising a stored program, wherein the program, when run, controls a device in which the storage medium is located to perform the method of determining a minimum access level according to any one of claims 1 to 6.
9. 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, when loaded and executed by the processor, implement the steps of the method of determining a minimum access level as claimed in any one of claims 1 to 6.
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