CN111836351A - Power distribution method and device - Google Patents

Power distribution method and device Download PDF

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CN111836351A
CN111836351A CN201910322841.7A CN201910322841A CN111836351A CN 111836351 A CN111836351 A CN 111836351A CN 201910322841 A CN201910322841 A CN 201910322841A CN 111836351 A CN111836351 A CN 111836351A
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terminal
value
power
allocated
scheduled
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CN111836351B (en
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胡健
徐宏
袁菁
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Potevio Information Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/245—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a power distribution method and a device, wherein the method comprises the following steps: receiving a Reference Signal Received Power (RSRP) value which is measured and reported from a cell broadcast subband by a terminal to be scheduled at present; configuring a PA value corresponding to an RSRP value for the terminal according to a preset corresponding relation between a preset RSRP threshold range and the PA value of a terminal level parameter; wherein, in the preset corresponding relation, the low RSRP threshold range corresponds to a high PA value, and the high RSRP threshold range corresponds to a low PA value; and performing power distribution on the terminal according to the PA value configured for the terminal. The embodiment of the invention realizes the reasonable distribution of the terminal power and solves the problem of small signal coverage of the cell.

Description

Power distribution method and device
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a power allocation method and apparatus.
Background
The TD-LTE 230 power wireless narrow-band communication (LTE 230 for short) system is a special 4G communication system for a power communication network, and can meet the communication requirements of the power communication network on low time delay, high reliability and wide coverage. When the system adopts the inter-frequency networking mode, along with the expansion of the service scale and the increase of access users, the base station needs to expand more frequency band resources in order to meet the bandwidth resource requirements of the access users. However, since the requirement of the Radio Remote Unit (RRU) for the rated power of the base station is limited and unchanged, the transmission power of each downlink sub-band is relatively reduced on the premise that the PA value of the UE-level parameter of each terminal user is unchanged, which results in a reduction in the coverage of cell signals and a direct impact on the access performance of terminal users far from the base station of the cell.
Therefore, in view of the above situation, it is necessary to perfect a downlink power allocation mechanism in the current inter-frequency networking environment, so as to solve the problem in the prior art that the coverage area of the cell signal is reduced due to the increase of access users.
Disclosure of Invention
Embodiments of the present invention provide a power allocation method and apparatus, so as to solve the problem in the prior art that the coverage area of a cell signal is reduced due to the increase of access users.
The embodiment of the invention provides a power distribution method, which comprises the following steps:
receiving a Reference Signal Received Power (RSRP) value which is measured and reported from a cell broadcast subband by a terminal to be scheduled at present;
configuring a PA value corresponding to an RSRP value for the terminal according to a preset corresponding relation between a preset RSRP threshold range and the PA value of a terminal level parameter; wherein, in the preset corresponding relation, the low RSRP threshold range corresponds to a high PA value, and the high RSRP threshold range corresponds to a low PA value;
and performing power distribution on the terminal according to the PA value configured for the terminal.
An embodiment of the present invention provides a power distribution apparatus, including:
the receiving module is used for receiving a Reference Signal Received Power (RSRP) value which is measured and reported from a cell broadcast subband by a terminal to be scheduled at present;
the configuration module is used for configuring a PA value corresponding to the RSRP value for the terminal according to a preset corresponding relation between a preset RSRP threshold range and a terminal level parameter PA value; wherein, in the preset corresponding relation, the low RSRP threshold range corresponds to a high PA value, and the high RSRP threshold range corresponds to a low PA value;
and the distribution module is used for carrying out power distribution on the terminal according to the PA value configured for the terminal.
An embodiment of the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the power allocation method when executing the program.
Embodiments of the present invention provide a non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the power distribution method.
The power allocation method and the device provided by the embodiment of the invention receive the RSRP value reported by the current terminal to be scheduled, and configuring a PA value corresponding to the RSRP value for the terminal according to a preset corresponding relation between a preset RSRP threshold range and the PA value, and then configuring the PA value for the terminal, the terminal is allocated with power, based on the preset corresponding relation that the low RSRP threshold range corresponds to the high PA value and the high RSRP threshold range corresponds to the low PA value, under the condition that the rated limited power of the base station wireless remote unit is not changed, a higher PA value is used for terminals farther from the base station to achieve effective signal coverage, and a lower PA value is used for terminals closer to the base station, so as to reduce the transmitting power distributed to the terminal, thereby realizing reasonable distribution of power resources of the whole cell, and further, the problem that the coverage area of cell signals is reduced due to the increase of access users is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a flow chart illustrating steps of a power allocation method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a scheduling flow of a terminal in a current scheduling period according to an embodiment of the present invention;
FIG. 3 is a block diagram of a power distribution apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.
As shown in fig. 1, which is a flowchart illustrating steps of a power allocation method according to an embodiment of the present invention, the method includes the following steps:
step 101: and receiving a Reference Signal Received Power (RSRP) value which is measured and reported from a cell broadcast subband by a terminal to be scheduled at present.
In this step, specifically, when receiving a Reference Signal Received Power (RSRP) value that is newly measured and reported by a terminal to be currently scheduled from a cell broadcast subband, a base station needs to determine the terminal to be currently scheduled in a current scheduling period first, and then receive the RSRP value reported by the terminal.
When determining the terminal to be scheduled currently in the current scheduling period, the base station may sequentially traverse all the terminals to be scheduled in the current scheduling period according to the service priority, and determine the currently traversed terminal as the terminal to be scheduled currently.
Specifically, the service priority corresponds to a QCI level (Qos level identifier), that is, the service priority may be determined according to the QCI level. The LTE 230 supports 6 QCI classes, and each QCI class corresponds to a class of service, and at this time, service priority may be determined according to the QCI class. For example, the service priority of the service corresponding to QCI5 is higher than the service priority of the services corresponding to QCI2 and QCI 3.
In addition, specifically, when the terminal reports the RSRP value, the terminal may report the RSRP value that is measured from the broadcast subband to the serving cell base station, and at this time, the base station receives the RSRP value reported by the terminal.
Step 102: and configuring a PA value corresponding to the RSRP value for the terminal according to a preset corresponding relation between a preset RSRP threshold range and the PA value of the terminal level parameter.
Specifically, in the pilot frequency networking environment of the current LTE 230 system, the downlink transmission power of the cell base station is not distinguished for the terminal user, that is, the transmission power is the same no matter how far the terminal is from the base station, which results in that the downlink power allocation is not reasonable enough. For example, if the uniformly allocated power is large, power waste may be caused, interference of the co-frequency base station in other cells to the terminal of the cell is increased, and the number of scheduled users in the cell is reduced due to the limitation of the total power; if the uniformly allocated power is too low, the far-point terminal cannot be fully covered, so that the coverage of the cell signal is reduced, and the system performance of the cell is reduced.
At this time, in order to solve the above problem, in this step, specifically, the base station sets a preset corresponding relationship between an RSRP threshold range and a terminal-level parameter PA value in advance, and in the corresponding relationship, a low RSRP threshold range corresponds to a high PA value, and a high RSRP threshold range corresponds to a low PA value. Of course, it should be noted that the low RSRP threshold range is relative to the high RSRP threshold range, and the high PA value is relative to the low PA value.
For example, in this embodiment, the base station may set a preset corresponding relationship between a first RSRP threshold range and a first PA value, a second RSRP threshold range and a second PA value, a third RSRP threshold range and a third PA value, and a fourth RSRP threshold range and a fourth PA value; the high-end value RSRP1 of the first RSRP threshold range is smaller than or equal to the low-end value of the second RSRP threshold range, the high-end value RSRP2 of the second RSRP threshold range is smaller than or equal to the low-end value of the third RSRP threshold range, the high-end value RSRP3 of the third RSRP threshold range is smaller than or equal to the low-end value of the fourth RSRP threshold range, namely, the values from the first RSRP threshold range to the fourth RSRP threshold range are sequentially increased, so that the terminals in the first RSRP threshold range can be regarded as far-end terminals, the terminals in the second RSRP threshold range can be regarded as far-end terminals, the terminals in the third RSRP threshold range can be regarded as near-end terminals, and the terminals in the fourth RSRP threshold range can be regarded as near-end terminals; in addition, the first PA value is greater than the second PA value, the second PA value is greater than the third PA value, and the third PA value is greater than the fourth PA value, that is, the first PA value, the second PA value, and the third PA value to the fourth PA value decrease in sequence.
Therefore, by setting the preset corresponding relation, the terminal far away from the base station can adopt a higher PA value, and the terminal near the base station can adopt a lower PA value, so that the terminal far away from the base station can be effectively covered by signals, the terminal near the base station can be reduced in the distributed transmitting power, the reasonable distribution of the power resources of the whole cell can be realized, the signal coverage range of the cell can be increased, and the interference to other cells with the same frequency can be reduced.
In addition, specifically, when configuring a PA value corresponding to the RSRP value for the terminal according to the preset correspondence, the received RSRP value may be compared with the RSRP threshold range, and when the RSRP value obtained by the comparison belongs to an RSRP threshold range in the preset correspondence, the PA value corresponding to the RSRP threshold range is determined as the PA value configured for the terminal.
In addition, specifically, the base station may assign the PA value to the terminal through a Radio Resource Control (RRC) reconfiguration message.
Step 103: and performing power distribution on the terminal according to the PA value configured for the terminal.
In this step, specifically, after the PA value is configured for the terminal, power allocation may be performed on the terminal according to the PA value configured for the terminal.
In this way, according to the preset corresponding relationship between the preset RSRP threshold range and the PA value, the present embodiment configures the PA value corresponding to the RSRP value reported by the terminal for the terminal, and performs power distribution on the terminal according to the PA value configured for the terminal, where in the preset corresponding relationship, the low RSRP threshold range corresponds to the high PA value, and the high RSRP threshold range corresponds to the low PA value, so that under the condition that the rated limited power of the base station wireless remote unit is not changed, a higher PA value can be adopted for the terminal farther from the base station to achieve effective signal coverage, and a lower PA value is adopted for the terminal closer to the base station to achieve reduction of the transmission power distributed to the terminal, thereby achieving reasonable distribution of power resources of the whole cell, and further achieving ensuring the signal coverage of the cell when the number of access users increases.
Further, on the basis of the foregoing embodiment, when performing power allocation for the terminal according to the PA value configured for the terminal, the method may include the following steps:
step A: and calculating to obtain the power value of the physical downlink shared channel resource element (PDSCH RE) to be allocated to the terminal according to the PA value configured for the terminal.
In this step, specifically, when calculating a power value of a physical downlink shared channel resource element (PDSCH RE for short) to be allocated to a terminal according to a PA value configured for the terminal, a power value of a base station reference signal may be obtained, and the power value of the PDSCH RE to be allocated to the terminal is calculated according to the following formula;
Figure BDA0002035330620000051
wherein the content of the first and second substances,
Figure 1
a linear value representing a power value of PDSCH REs to be allocated to the terminal,
Figure 2
a linear value representing a power value of the base station reference signal,
Figure 3
represents a linear value of the PA value.
And B: and performing power allocation on the terminal according to the pre-acquired residual total power value of the base station in the current scheduling period and the calculated power value to be allocated to the terminal PDSCH RE.
In this step, specifically, when performing power allocation on the terminal according to the pre-obtained remaining total power value of the base station in the current scheduling period and the calculated power value to be allocated to the PDSCH RE of the terminal, it may be determined whether the remaining total power value of the base station in the current scheduling period is greater than or equal to the power value to be allocated to the PDSCH RE of the terminal; and when the residual total power value of the base station in the current scheduling period is judged to be larger than or equal to the power value to be allocated to the terminal PDSCH RE, allocating the power value to be allocated to the terminal PDSCH RE to the terminal.
Therefore, when the base station allocates frequency band resources for the terminal in each scheduling period, the base station schedules the terminal based on the service priority, judges whether the residual total power value of the current base station meets the power value of the current terminal to be scheduled or not under the condition of rated total power, and performs resource scheduling on the terminal meeting the power allocation requirement, so that the terminal meeting the total power limit requirement can be scheduled in a maximum limited mode under the condition that the allocated total power does not exceed the rated total power of the RRU of the base station.
It should be noted that, after the power value to be allocated to the terminal PDSCH RE is allocated to the terminal, the base station may further obtain a difference between the remaining total power value and the power value allocated to the terminal PDSCH RE, and determine whether the difference is greater than or equal to the power value of the PDSCHRE to be allocated to the next terminal to be scheduled in the current scheduling period, where if the difference is greater than or equal to the power value of the PDSCH RE to be allocated to the next terminal to be scheduled in the current scheduling period, the power value of the PDSCH RE to be allocated to the next terminal to be scheduled is allocated to the next terminal to be scheduled.
Specifically, the next terminal to be scheduled in the current scheduling period is the next traversed terminal adjacent to the currently traversed terminal, which is obtained by sequentially traversing all terminals to be scheduled in the current scheduling period according to the service priority.
Therefore, the power scheduling is continuously carried out on the terminal to be scheduled next in the current scheduling period by the mode, and the terminal meeting the total power limiting requirement can be scheduled in a maximum limited mode.
In addition, it should be noted that, after determining whether the remaining total power value of the base station in the current scheduling period is greater than or equal to the power value to be allocated to the terminal PDSCH RE, this embodiment may further include the following steps:
when the residual total power value of the base station in the current scheduling period is judged to be smaller than the power value to be allocated to the PDSCH RE of the terminal, comparing the residual total power value with the power value to be allocated to the PDSCH RE of the next terminal to be scheduled in the current scheduling period; wherein the content of the first and second substances,
if the residual total power value is greater than or equal to the power value of the PDSCH RE to be allocated to the next terminal to be scheduled, allocating the power value of the PDSCH RE to be allocated to the next terminal to be scheduled;
and if the residual total power value is smaller than the power value of the PDSCH RE to be allocated to the next terminal to be scheduled, continuing to compare the residual total power value with the power value of the PDSCH RE to be allocated to a second terminal to be scheduled in the current scheduling period, wherein the second terminal to be scheduled is a terminal to be scheduled after the terminal to be scheduled is sequenced and adjacent to the next terminal to be scheduled in the current scheduling period.
Therefore, when the remaining total power of the base station is judged to not meet the power distribution requirement of the terminal, the remaining total power value is continuously compared with the power value to be distributed to the next terminal to be scheduled, and finally, the terminal which can meet the power limiting condition cannot be found, or the remaining total power of the base station in the current scheduling period is zero, and the service scheduling of all terminals in the current scheduling period is combined, so that the terminal which meets the total power limiting requirement can be scheduled in a maximum limited mode under the condition that the distributed total power cannot exceed the rated total power of the RRU of the base station.
The following may describe a scheduling procedure of the terminal in the current scheduling period by using fig. 2.
Referring to fig. 2, the scheduling procedure for the terminal in the current scheduling period may be as follows:
step 1: detecting whether the base station finishes traversing all terminals to be scheduled in the current scheduling period according to the service priority, if not, entering the step 2 aiming at the terminal i to be scheduled;
step 2: calculating a power value to be allocated to the terminal i according to the PA value configured for the terminal i, and then entering the step 3;
and step 3: judging whether the residual total power value of the base station is greater than or equal to the power value to be distributed to the terminal i, if so, entering the step 4, and if not, accumulating the terminal indexes i in the scheduling queues where all the terminals to be scheduled are located, and then entering the step 1;
and 4, step 4: scheduling the DCI scheduling information sent by the terminal, subtracting the power value allocated to the terminal i from the residual total power value of the base station, and then entering the step 5;
and 5: judging whether the residual total power value is zero, if so, entering a step 6, namely finishing the scheduling of the current scheduling period to the terminal; and if not, accumulating the terminal indexes i in the scheduling queues where all the terminals to be scheduled are located, and then entering the step 1.
Through the steps, the base station of the service cell allocates frequency band resources to the terminal according to the service priority based on the original scheduling algorithm in each frame scheduling period, and meanwhile, the base station compares the power required to be allocated to the terminal with the current residual total power of the base station to judge whether the residual power meets the power allocation requirement of the terminal. Wherein, for the terminal meeting the condition, the DCI is issued for scheduling; for the terminal which does not meet the power limiting condition, the scheduling of the scheduling period is abandoned, and the next terminal to be scheduled is continuously inquired according to the service priority, and the calculation of power distribution and the comparison with the residual total power of the base station are carried out; and finally, ending service scheduling for all terminals in the scheduling period until a terminal which can meet the power limiting condition cannot be found or the residual total power of the base station in the current scheduling period is zero, thereby realizing that the terminal which meets the total power limiting requirement can be scheduled in a maximum limited manner under the condition of ensuring that the allocated total power does not exceed the rated total power of the RRU of the base station.
Thus, the power allocation method provided in this embodiment receives the RSRP value reported by the terminal to be currently scheduled in the current scheduling period, and configuring a PA value corresponding to the RSRP value for the terminal according to a preset corresponding relation between a preset RSRP threshold range and the PA value, and then configuring the PA value for the terminal, the terminal is allocated with power, based on the preset corresponding relation that the low RSRP threshold range corresponds to the high PA value and the high RSRP threshold range corresponds to the low PA value, under the condition that the rated limited power of the base station wireless remote unit is not changed, a higher PA value is used for terminals farther from the base station to achieve effective signal coverage, and a lower PA value is used for terminals closer to the base station, so as to reduce the transmitting power distributed to the terminal, thereby realizing reasonable distribution of power resources of the whole cell, and further, the problem that the coverage area of cell signals is reduced due to the increase of access users is solved.
As shown in fig. 3, which is a block diagram of a power distribution apparatus in an embodiment of the present invention, the apparatus includes:
a receiving module 301, configured to receive a reference signal received power RSRP value that is newly measured and reported by a terminal to be currently scheduled from a cell broadcast subband;
a configuration module 302, configured to configure a PA value corresponding to an RSRP value for a terminal according to a preset correspondence between a preset RSRP threshold range and the PA value of a terminal level parameter; wherein, in the preset corresponding relation, the low RSRP threshold range corresponds to a high PA value, and the high RSRP threshold range corresponds to a low PA value;
a allocating module 303, configured to allocate power to the terminal according to the PA value configured for the terminal.
Optionally, the receiving module 301 is configured to determine a terminal to be currently scheduled in a current scheduling period, and receive an RSRP value reported by the terminal; the method is specifically used for sequentially traversing all terminals to be scheduled in the current scheduling period according to the service priority, and determining the currently traversed terminals as the terminals to be scheduled.
Optionally, the allocating module 303 includes:
a calculating unit, configured to calculate, according to the PA value configured for the terminal, a power value of a PDSCH RE that is a physical downlink shared channel resource element to be allocated to the terminal;
and the allocation unit is used for allocating power to the terminal according to the residual total power value of the base station in the current scheduling period acquired in advance and the calculated power value to be allocated to the terminal PDSCH RE.
Optionally, the calculating unit is configured to obtain a power value of a base station reference signal, and calculate a power value of a PDSCH RE to be allocated to the terminal according to the following formula;
Figure BDA0002035330620000091
wherein the content of the first and second substances,
Figure BDA0002035330620000092
a linear value representing a power value of PDSCH REs to be allocated to the terminal,
Figure BDA0002035330620000093
a linear value representing a power value of the base station reference signal,
Figure BDA0002035330620000094
represents a linear value of the PA value.
Optionally, the allocation unit comprises:
a first determining subunit, configured to determine whether a remaining total power value of the base station in the current scheduling period is greater than or equal to the power value to be allocated to the terminal PDSCH RE;
and the first allocating subunit is configured to allocate the power value to be allocated to the terminal PDSCH RE to the terminal when it is determined that the remaining total power value of the base station in the current scheduling period is greater than or equal to the power value to be allocated to the terminal PDSCH RE.
Optionally, after the power value to be allocated to the terminal PDSCH RE is allocated to the terminal, the apparatus further includes:
a second determining subunit, configured to obtain a difference between the remaining total power value and the power value allocated to the PDSCH RE of the terminal, and determine whether the difference is greater than or equal to the power value of the PDSCH RE to be allocated to the next terminal to be scheduled in the current scheduling period;
and the second allocating subunit is configured to allocate, to the next terminal to be scheduled, the power value of the PDSCH RE to be allocated to the next terminal to be scheduled if it is determined that the difference is greater than or equal to the power value of the PDSCH RE to be allocated to the next terminal to be scheduled in the current scheduling period.
Optionally, the apparatus further comprises:
a comparing unit, configured to compare, when it is determined that the remaining total power value of the base station in the current scheduling period is smaller than the power value to be allocated to the PDSCH RE of the terminal, the remaining total power value with the power value to be allocated to the PDSCH RE of the next terminal to be scheduled in the current scheduling period; wherein the content of the first and second substances,
if the residual total power value is greater than or equal to the power value of the PDSCH RE to be allocated to the next terminal to be scheduled, allocating the power value of the PDSCH RE to be allocated to the next terminal to be scheduled;
and if the residual total power value is smaller than the power value of the PDSCH RE to be allocated to the next terminal to be scheduled, continuing to compare the residual total power value with the power value of the PDSCH RE to be allocated to a second terminal to be scheduled in the current scheduling period, wherein the second terminal to be scheduled is a terminal to be scheduled after the terminal to be scheduled is sequenced and adjacent to the next terminal to be scheduled in the current scheduling period.
Thus, the power allocation apparatus provided in this embodiment receives, by the receiving module, an RSRP value reported by a terminal to be currently scheduled, configures, by the configuration module, a PA value corresponding to the RSRP value for the terminal according to a preset corresponding relationship between a preset RSRP threshold range and the PA value, where, in the preset corresponding relationship, a low RSRP threshold range corresponds to a high PA value and a high RSRP threshold range corresponds to a low PA value, and then performs power allocation on the terminal according to the PA value configured for the terminal by the allocation module, so that, based on that, in the preset corresponding relationship, the low RSRP threshold range corresponds to the high PA value and the high RSRP threshold range corresponds to the low PA value, a higher PA value can be adopted for a terminal farther from the base station under the condition that the rated limited power of the wireless remote unit of the base station is unchanged, so as to achieve effective signal coverage, and a lower PA value is adopted for a terminal closer to the base station, the method and the device realize reduction of the transmitting power distributed to the terminal, thereby realizing reasonable distribution of power resources of the whole cell, and further solving the problem of reduction of the cell signal coverage range caused by increase of access users.
In addition, as shown in fig. 4, an entity structure schematic diagram of the electronic device provided in the embodiment of the present invention is shown, where the electronic device may include: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. The processor 410 may invoke a computer program stored on the memory 430 and executable on the processor 410 to perform the methods provided by the various embodiments described above, including, for example: receiving a Reference Signal Received Power (RSRP) value which is measured and reported from a cell broadcast subband by a terminal to be scheduled at present; configuring a PA value corresponding to an RSRP value for the terminal according to a preset corresponding relation between a preset RSRP threshold range and the PA value of a terminal level parameter; wherein, in the preset corresponding relation, the low RSRP threshold range corresponds to a high PA value, and the high RSRP threshold range corresponds to a low PA value; and performing power distribution on the terminal according to the PA value configured for the terminal.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Embodiments of the present invention further provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the method provided in the foregoing embodiments when executed by a processor, and the method includes: receiving a Reference Signal Received Power (RSRP) value which is measured and reported from a cell broadcast subband by a terminal to be scheduled at present; configuring a PA value corresponding to an RSRP value for the terminal according to a preset corresponding relation between a preset RSRP threshold range and the PA value of a terminal level parameter; wherein, in the preset corresponding relation, the low RSRP threshold range corresponds to a high PA value, and the high RSRP threshold range corresponds to a low PA value; and performing power distribution on the terminal according to the PA value configured for the terminal.
The above-described embodiments of the apparatus are merely illustrative, and the 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 modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A method of power allocation, comprising:
receiving a Reference Signal Received Power (RSRP) value which is measured and reported from a cell broadcast subband by a terminal to be scheduled at present;
configuring a PA value corresponding to an RSRP value for the terminal according to a preset corresponding relation between a preset RSRP threshold range and the PA value of a terminal level parameter; wherein, in the preset corresponding relation, the low RSRP threshold range corresponds to a high PA value, and the high RSRP threshold range corresponds to a low PA value;
and performing power distribution on the terminal according to the PA value configured for the terminal.
2. The method of claim 1, wherein the receiving the Reference Signal Received Power (RSRP) value newly measured and reported by the terminal to be currently scheduled from the cell broadcast subband comprises:
determining a terminal to be scheduled currently in a current scheduling period, and receiving an RSRP value reported by the terminal; wherein the content of the first and second substances,
the determining of the terminal to be currently scheduled in the current scheduling period includes:
and traversing all the terminals to be scheduled in the current scheduling period in sequence according to the service priority, and determining the currently traversed terminals as the terminals to be scheduled.
3. The method of claim 1, wherein the allocating power to the terminal according to the configured PA value for the terminal comprises:
calculating to obtain a power value of a physical downlink shared channel resource element (PDSCH RE) to be allocated to the terminal according to a Power Amplifier (PA) value configured for the terminal;
and performing power allocation on the terminal according to the pre-acquired residual total power value of the base station in the current scheduling period and the calculated power value to be allocated to the terminal PDSCH RE.
4. The method according to claim 3, wherein the calculating a power value of PDSCH REs to be allocated to the terminal according to the PA value configured for the terminal includes:
acquiring a power value of a base station reference signal, and calculating to obtain a power value of a PDSCHRE to be allocated to the terminal according to the following formula;
Figure FDA0002035330610000011
wherein the content of the first and second substances,
Figure FDA0002035330610000012
a linear value representing a power value of PDSCH REs to be allocated to the terminal,
Figure FDA0002035330610000013
a linear value representing a power value of the base station reference signal,
Figure FDA0002035330610000014
represents a linear value of the PA value.
5. The method of claim 3, wherein the allocating power to the terminal according to the pre-obtained remaining total power value of the base station in the current scheduling period and the calculated power value to be allocated to the terminal PDSCH RE comprises:
judging whether the residual total power value of the base station in the current scheduling period is greater than or equal to the power value to be allocated to the terminal PDSCH RE;
and when the residual total power value of the base station in the current scheduling period is judged to be larger than or equal to the power value to be allocated to the terminal PDSCH RE, allocating the power value to be allocated to the terminal PDSCH RE to the terminal.
6. The method of claim 5, wherein after the power value to be allocated to terminal PDSCH REs is allocated to the terminal, the method further comprises:
obtaining a difference value between the residual total power value and the power value allocated to the PDSCH RE of the terminal, and judging whether the difference value is greater than or equal to the power value of the PDSCH RE to be allocated to the next terminal to be scheduled in the current scheduling period;
and if the difference value is judged to be larger than or equal to the power value of the PDSCHRE to be allocated to the next terminal to be scheduled in the current scheduling period, allocating the power value of the PDSCH RE to be allocated to the next terminal to be scheduled.
7. The method of claim 5, wherein after determining whether the remaining total power value of the base station in the current scheduling period is greater than or equal to the power value to be allocated to terminal PDSCH REs, the method further comprises:
when the residual total power value of the base station in the current scheduling period is judged to be smaller than the power value to be allocated to the terminal PDSCHRE, comparing the residual total power value with the power value to be allocated to the PDSCH RE of the next terminal to be scheduled in the current scheduling period; wherein the content of the first and second substances,
if the residual total power value is greater than or equal to the power value of the PDSCH RE to be allocated to the next terminal to be scheduled, allocating the power value of the PDSCH RE to be allocated to the next terminal to be scheduled;
and if the residual total power value is smaller than the power value of the PDSCH RE to be allocated to the next terminal to be scheduled, continuing to compare the residual total power value with the power value of the PDSCH RE to be allocated to a second terminal to be scheduled in the current scheduling period, wherein the second terminal to be scheduled is a terminal to be scheduled after the terminal to be scheduled is sequenced and adjacent to the next terminal to be scheduled in the current scheduling period.
8. A power distribution apparatus, comprising:
the receiving module is used for receiving a Reference Signal Received Power (RSRP) value which is measured and reported from a cell broadcast subband by a terminal to be scheduled at present;
the configuration module is used for configuring a PA value corresponding to the RSRP value for the terminal according to a preset corresponding relation between a preset RSRP threshold range and a terminal level parameter PA value; wherein, in the preset corresponding relation, the low RSRP threshold range corresponds to a high PA value, and the high RSRP threshold range corresponds to a low PA value;
and the distribution module is used for carrying out power distribution on the terminal according to the PA value configured for the terminal.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the power distribution method according to any of claims 1 to 7 when executing the program.
10. A non-transitory computer readable storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the power distribution method of any of claims 1 to 7.
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