CN111836351B - Power distribution method and device - Google Patents

Power distribution method and device Download PDF

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CN111836351B
CN111836351B CN201910322841.7A CN201910322841A CN111836351B CN 111836351 B CN111836351 B CN 111836351B CN 201910322841 A CN201910322841 A CN 201910322841A CN 111836351 B CN111836351 B CN 111836351B
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terminal
value
power value
pdsch
power
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CN111836351A (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

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 latest by a current terminal to be scheduled from a cell broadcast sub-band; according to a preset corresponding relation between a preset RSRP threshold range and a terminal-level parameter PA value, configuring a PA value corresponding to the RSRP value for the terminal; 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 carrying out power distribution on the terminal according to the PA value configured for the terminal. The embodiment of the invention realizes reasonable distribution of the power of the terminal and solves the problem of smaller coverage area of the cell signal.

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 narrowband communication (LTE 230 for short) system is a special 4G communication system for a power communication network, and can meet the communication requirements of low time delay, high reliability and wide coverage of the power communication network. When the system adopts the inter-frequency networking mode, the base station needs to expand more frequency band resources along with the expansion of service scale and the increase of access users in order to meet the bandwidth resource requirements of the access users. However, since the rated power requirement of the wireless remote unit (Radio Remote Unit, RRU) of the base station is limited and unchanged, the transmission power of each downlink sub-band is relatively reduced on the premise that the value of the UE-level parameter PA of each terminal user is unchanged, so that the coverage area of the cell signal is reduced, and the access performance of the terminal users far from the cell base station is directly affected.
Therefore, in order to solve the above-mentioned problem, the coverage area of the cell signal is reduced due to the increase of access users in the prior art, the downlink power allocation mechanism in the current inter-frequency networking environment needs to be perfected.
Disclosure of Invention
The embodiment of the invention provides a power distribution method and device, which are used for solving the problem that the coverage area of a cell signal is reduced due to the increase of access users in the prior art.
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 latest by a current terminal to be scheduled from a cell broadcast sub-band;
according to a preset corresponding relation between a preset RSRP threshold range and a terminal-level parameter PA value, configuring a PA value corresponding to the RSRP value for the terminal; 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 carrying out 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 the Reference Signal Received Power (RSRP) value which is measured and reported from the latest of the cell broadcast sub-bands by the current terminal to be scheduled;
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 the terminal-level parameter PA value; 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 distributing power to the terminal according to the PA value configured for the terminal.
The embodiment of the invention provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the steps of the power distribution 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 allocation method.
According to the power distribution method and device provided by the embodiment of the invention, the RSRP value reported by the terminal to be scheduled at present is received, the PA value corresponding to the RSRP value is configured for the terminal according to the preset corresponding relation between the preset RSRP threshold range and the PA value, then the power distribution is performed for the terminal according to the PA value configured for the terminal, and the low RSRP threshold range corresponds to the high PA value and the high RSRP threshold range corresponds to the low PA value in the preset corresponding relation, so that the terminal far away from the base station can be covered by the high PA value under the condition that the rated limited power of the wireless remote unit of the base station is unchanged, and the terminal near to the base station is covered by the low PA value, so that the transmission power distributed for the terminal is reduced, the reasonable distribution of the power resource of the whole cell is realized, and the problem of the reduction of the coverage of the cell signal due to the increase of access users is solved.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
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 in 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 according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present 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.
As shown in fig. 1, a flowchart of steps of a power allocation method according to an embodiment of the present invention includes the following steps:
step 101: and receiving the reference signal receiving power RSRP value which is measured and reported from the latest on the cell broadcast sub-band by the terminal to be scheduled currently.
In this step, specifically, when receiving the Reference Signal Received Power (RSRP) value that is newly measured and reported by the current terminal to be scheduled from the cell broadcast sub-band, the base station needs to determine the current terminal to be scheduled in the current scheduling period first, and then receives the RSRP value reported by the terminal.
When determining the current terminal to be scheduled in the current scheduling period, the base station can 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 current terminal to be scheduled.
Specifically, the service priority corresponds to a QCI level (Qos level identifier), and the service priority may be determined according to the QCI level. Wherein LTE 230 supports 6 QCI classes, and each QCI class corresponds to a class of traffic, the traffic 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 priorities 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 latest broadcast subband to the serving cell base station, and at this time, the base station receives the RSRP value that is 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 the preset RSRP threshold range and the terminal-level parameter PA value.
Specifically, in the current heterogeneous networking environment of the LTE 230 system, the downlink transmission power of the cell base station is not differentiated for the terminal user, that is, the transmission power is the same no matter how far or how far the terminal is from the base station, which results in unreasonable downlink power allocation. For example, if the power uniformly distributed is larger, power waste is caused, interference of the same-frequency base station in other cells to the terminal of the cell is increased, and the number of scheduling users of the cell is reduced due to the limitation of the total power; if the uniformly distributed power is smaller, the terminal at a far point 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-mentioned problem, in this step, specifically, the base station is preset with a preset correspondence between the RSRP threshold range and the terminal-level parameter PA value, and in the correspondence, the low RSRP threshold range corresponds to the high PA value, and the high RSRP threshold range corresponds to the low PA value. Of course, it should be noted here that the low RSRP threshold range is compared to the high RSRP threshold range, and the high PA value is compared to the low PA value.
For example, in this embodiment, the base station may set a preset correspondence between the first RSRP threshold range and the first PA value, the second RSRP threshold range and the second PA value, the third RSRP threshold range and the third PA value, and the fourth RSRP threshold range and the fourth PA value; the high end point value RSRP1 of the first RSRP threshold range is smaller than or equal to the low end point value of the second RSRP threshold range, the high end point value RSRP2 of the second RSRP threshold range is smaller than or equal to the low end point value of the third RSRP threshold range, the high end point value RSRP3 of the third RSRP threshold range is smaller than or equal to the low end point 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 a terminal in the first RSRP threshold range can be regarded as a far-point terminal, a terminal in the second RSRP threshold range can be regarded as a far-point terminal, a terminal in the third RSRP threshold range can be regarded as a near-point terminal, and a terminal in the fourth RSRP threshold range can be regarded as a near-point terminal; furthermore, the first PA value is larger than the second PA value, the second PA value is larger than the third PA value, and the third PA value is larger than the fourth PA value, i.e. the first PA value, the second PA value, the third PA value to the fourth PA value decrease in sequence.
In this way, by setting the preset corresponding relation, a higher PA value can be adopted for the terminal far away from the base station, and a lower PA value can be adopted for the terminal near the base station, so that effective signal coverage can be carried out on the terminal far away from the base station, the transmission power allocated to the terminal near the base station is reduced, reasonable allocation of the power resource of the whole cell is further realized, the signal coverage of the cell is increased, and interference to other same-frequency cells is reduced.
In addition, specifically, when the PA value corresponding to the RSRP value is configured for the terminal according to the preset correspondence, the received RSRP value may be compared with the RSRP threshold range, and when the comparison results in that the RSRP value 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 allocate a PA value to the terminal through a Radio Resource Control (RRC) reconfiguration message.
Step 103: and carrying out 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 for the terminal according to the PA value configured for the terminal.
In this way, according to the preset corresponding relation between the preset RSRP threshold range and the PA value, the PA value corresponding to the RSRP value reported by the terminal is configured for the terminal, and according to the PA value configured for the terminal, the power distribution is performed on the terminal, wherein in the preset corresponding relation, 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 wireless remote unit of the base station is unchanged, a higher PA value can be adopted for the terminal far from the base station, so as to realize effective signal coverage, and a lower PA value is adopted for the terminal near to the base station, so that the transmission power distributed to the terminal is reduced, thereby realizing reasonable distribution of the power resource of the whole cell, and further realizing the guarantee of the signal coverage of the cell when the access user increases.
Further, on the basis of the above embodiment, when performing power allocation on the terminal according to the PA value configured for the terminal, the method may include the following steps:
step A: and calculating 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 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, the power value of the base station reference signal may be obtained, and the power value of the PDSCH RE to be allocated to the terminal may be calculated according to the following formula;
Figure BDA0002035330620000051
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure 1
linear value representing power value of PDSCH RE to be allocated to the terminal, +.>
Figure 2
A linear value representing the power value of said base station reference signal,/->
Figure 3
A linear value representing the PA value.
And (B) step (B): and carrying out power distribution 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 distributed to the terminal PDSCH RE.
In this step, specifically, when power allocation is performed on the terminal according to the obtained 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, it may be determined 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 judging that the residual total power value of the base station in the current scheduling period is larger than or equal to the power value of the to-be-allocated terminal PDSCH RE, allocating the power value of the to-be-allocated terminal PDSCH RE to the terminal.
In this way, when the base station allocates the frequency band resources for the terminal in each scheduling period, the base station performs terminal scheduling based on the service priority, and under the condition of rated total power, judges whether the residual total power value of the current base station meets the power value of the terminal to be scheduled currently, and performs resource scheduling on the terminal meeting the power allocation requirement, so that the terminal meeting the total power limiting requirement can be scheduled to the maximum limit under the condition of ensuring that the allocated total power does not exceed the RRU rated total power of the base station.
It should be noted that, after the power value of the PDSCH RE to be allocated to the terminal is allocated to the terminal, the base station may further obtain a difference between the remaining total power value and the power value of the PDSCH RE to be allocated to 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 in the current scheduling period, where 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 in the current scheduling period, the power value of the PDSCH RE to be allocated to the next terminal is allocated to the next terminal to be scheduled.
Specifically, the next terminal to be scheduled in the current scheduling period is a next traversed terminal adjacent to the current traversed terminal, which traverses all the terminals to be scheduled in the current scheduling period in sequence according to the service priority.
Therefore, the power scheduling is continuously carried out for the next terminal to be scheduled in the current scheduling period in the mode, and the terminal meeting the total power limiting requirement can be scheduled to the maximum limit.
In addition, it should be further 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, the embodiment may further include the following steps:
when judging that the residual total power value of the base station in the current scheduling period is smaller than the power value of the PDSCH RE to be allocated to the terminal, comparing the residual total power value with the power value of the PDSCH RE to be allocated to the next terminal to be scheduled in the current scheduling period; wherein, the liquid crystal display device comprises a liquid crystal display device,
if the remaining 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, continuously comparing 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 the next terminal to be scheduled adjacent to the next terminal to be scheduled in the current scheduling period.
In this way, when the residual total power of the base station is judged to not meet the power distribution requirement of the terminal, the residual total power value is continuously compared with the power value to be distributed to the next terminal to be scheduled until the 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, and the service scheduling of all terminals in the current scheduling period is combined, so that the terminal which can meet the total power limiting requirement in the maximum limiting scheduling under the condition that the distributed total power cannot exceed the RRU rated total power of the base station is realized.
The scheduling flow of the terminal in the current scheduling period can be described by fig. 2.
Referring to fig. 2, the scheduling procedure of the terminal in the current scheduling period may be as follows:
step 1: detecting whether the base station traverses all terminals to be scheduled in the current scheduling period according to the service priority, if not, entering a step 2 aiming at the terminal i to be scheduled currently;
step 2: according to the PA value configured for the terminal i, calculating the power value to be distributed to the terminal i, and then entering step 3;
step 3: judging whether the residual total power value of the base station is larger than or equal to the power value to be distributed to the terminal i, if so, entering the step 4, and if so, accumulating the terminal indexes i in the scheduling queues where all the terminals to be scheduled are located, and then entering the step 1;
step 4: scheduling the DCI scheduling information sent by the terminal, subtracting the power value distributed for the terminal i from the residual total power value of the base station, and then entering step 5;
step 5: judging whether the residual total power value is zero, if so, entering a step 6, namely ending the scheduling of the terminal in the current scheduling period; if not, accumulating the terminal indexes i in the scheduling queues where all the terminals to be scheduled are located, and then entering step 1.
Through the steps, the service cell base station allocates the 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 service cell base station compares the power 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, DCI is issued for scheduling; giving up the scheduling of the scheduling period for the terminals which do not meet the power limiting condition, continuously inquiring the next terminal to be scheduled according to the service priority, and calculating the power distribution and comparing the power distribution with the residual total power of the base station; and finally, 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, ending the service scheduling of all terminals in the current scheduling period, and realizing the terminal which can meet the total power limiting requirement by the maximum limited scheduling under the condition of ensuring that the allocated total power does not exceed the RRU rated total power of the base station.
In this way, in the power distribution method provided in this embodiment, by receiving the RSRP value reported by the terminal to be scheduled currently in the current scheduling period, configuring the PA value corresponding to the RSRP value for the terminal according to the preset correspondence between the preset RSRP threshold range and the PA value, and then performing power distribution on the terminal according to the PA value configured for the terminal, based on the low RSRP threshold range corresponding to the high PA value and the high RSRP threshold range corresponding to the low PA value in the preset correspondence, the terminal far from the base station can adopt the higher PA value under the condition that the rated limited power of the wireless remote unit of the base station is unchanged, so as to realize effective signal coverage, and the terminal near to the base station adopts the lower PA value, so as to realize reduction of the transmission power distributed to the terminal, thereby realizing reasonable distribution of the power resource of the whole cell, and further solving the problem of reduced cell signal coverage caused by increased access users.
As shown in fig. 3, a block diagram of a power distribution apparatus according to an embodiment of the present invention includes:
a receiving module 301, configured to receive a reference signal received power RSRP value that is latest measured and reported from a cell broadcast subband by a terminal to be currently scheduled;
a configuration module 302, configured to configure a PA value corresponding to a preset RSRP threshold range and a terminal-level parameter PA value for the terminal according to a preset correspondence between the RSRP threshold range and the terminal-level parameter PA value; 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 allocation module 303 is 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 a current scheduling period according to the service priority, and determining the currently traversed terminal as the current terminal to be scheduled.
Optionally, the allocation module 303 includes:
a calculating unit, configured to calculate, according to a PA value configured for the terminal, a power value of a physical downlink shared channel resource element PDSCH RE to be allocated to the terminal;
and the allocation unit is used for carrying out 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.
Optionally, the calculating unit is configured to obtain a power value of a base station reference signal, and calculate, according to the following formula, a power value of a PDSCH RE to be allocated to the terminal;
Figure BDA0002035330620000091
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure BDA0002035330620000092
linear value representing power value of PDSCH RE to be allocated to the terminal, +.>
Figure BDA0002035330620000093
A linear value representing the power value of said base station reference signal,/->
Figure BDA0002035330620000094
A linear value representing the PA value.
Optionally, the dispensing unit comprises:
a first judging subunit, configured to judge 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 allocation subunit is used for allocating the power value to be allocated to the terminal PDSCH RE to the terminal when judging that the residual total power value of the base station in the current scheduling period is larger 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 judging subunit, configured to obtain a difference between the remaining total power value and a power value allocated to a PDSCH RE of the terminal, and judge whether the difference is greater than or equal to a power value of a PDSCH RE to be allocated to a next terminal to be scheduled in a current scheduling period;
and the second allocation subunit is configured to allocate the power value of the PDSCH RE to be allocated to the next terminal to be scheduled if the difference value is determined to be 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 the remaining total power value with a power value of a PDSCH RE to be allocated to a next terminal to be scheduled in the current scheduling period 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 of the PDSCH RE to be allocated to the terminal; wherein, the liquid crystal display device comprises a liquid crystal display device,
if the remaining 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, continuously comparing 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 the next terminal to be scheduled adjacent to the next terminal to be scheduled in the current scheduling period.
In this way, the power distribution device provided in this embodiment receives, through the receiving module, an RSRP value reported by a terminal to be currently scheduled, and configures, through the configuring module, a PA value corresponding to the RSRP value for the terminal according to a preset correspondence between a preset RSRP threshold range and the PA value, where in the preset correspondence, 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 distribution on the terminal according to the PA value configured for the terminal, where in this way, based on the preset correspondence, the low RSRP threshold range corresponds to the high PA value, the high RSRP threshold range corresponds to the low PA value, so that a terminal far away from the base station can use a higher PA value to achieve effective signal coverage, and a terminal near to the base station uses a lower PA value to achieve reduction of transmission power distributed to the terminal, thereby achieving reasonable distribution of power resources of the whole cell and further solving the problem of cell signal reduction caused by increase of access users.
In addition, as shown in fig. 4, an entity structure schematic diagram of an electronic device according to an embodiment of the present invention may include: processor 410, communication interface (Communications Interface) 420, memory 430 and communication bus 440, wherein processor 410, communication interface 420 and memory 430 communicate with each other via communication bus 440. The processor 410 may invoke a computer program stored in the memory 430 and executable on the processor 410 to perform the methods provided by the above embodiments, including, for example: receiving a Reference Signal Received Power (RSRP) value which is measured and reported latest by a current terminal to be scheduled from a cell broadcast sub-band; according to a preset corresponding relation between a preset RSRP threshold range and a terminal-level parameter PA value, configuring a PA value corresponding to the RSRP value for the terminal; 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 carrying out power distribution on the terminal according to the PA value configured for the terminal.
Further, the logic instructions in the memory 430 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform 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, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Embodiments of the present invention also provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the methods provided by the above embodiments, for example, comprising: receiving a Reference Signal Received Power (RSRP) value which is measured and reported latest by a current terminal to be scheduled from a cell broadcast sub-band; according to a preset corresponding relation between a preset RSRP threshold range and a terminal-level parameter PA value, configuring a PA value corresponding to the RSRP value for the terminal; 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 carrying out power distribution on the terminal according to the PA value configured for the terminal.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. A method of power allocation, comprising:
receiving a Reference Signal Received Power (RSRP) value which is measured and reported latest by a current terminal to be scheduled from a cell broadcast sub-band;
according to a preset corresponding relation between a preset RSRP threshold range and a terminal-level parameter PA value, configuring a PA value corresponding to the RSRP value for the terminal; 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;
according to the PA value configured for the terminal, carrying out power distribution on the terminal;
and the power distribution to the terminal is carried out according to the PA value configured for the terminal, and comprises the following steps:
according to the PA value configured for the terminal, calculating to obtain the power value of the physical downlink shared channel resource element PDSCH RE to be allocated to the terminal;
and carrying out power distribution 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 distributed to the terminal PDSCH RE.
2. The method according to claim 1, wherein the receiving the reference signal received power RSRP value that is newly measured and reported by the terminal currently to be scheduled from the cell broadcast sub-band comprises:
determining a current terminal to be scheduled in a current scheduling period, and receiving an RSRP value reported by the terminal; wherein, the liquid crystal display device comprises a liquid crystal display device,
the determining the current terminal to be scheduled in the current scheduling period comprises the following steps:
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 terminal as the current terminal to be scheduled.
3. The method according to claim 1, wherein the calculating a power value of a physical downlink shared channel resource element PDSCH RE 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 PDSCH RE to be distributed to the terminal according to the following formula;
Figure FDA0004074522920000011
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure FDA0004074522920000012
linear value representing power value of PDSCH RE to be allocated to the terminal, +.>
Figure FDA0004074522920000013
A linear value representing the power value of said base station reference signal,/->
Figure FDA0004074522920000014
A linear value representing the PA value.
4. The method according to claim 1, wherein the power allocation for the terminal according to the pre-acquired 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 includes:
judging whether the residual total power value of the base station in the current scheduling period is larger than or equal to the power value to be distributed to the terminal PDSCH RE;
and when judging that the residual total power value of the base station in the current scheduling period is larger than or equal to the power value of the to-be-allocated terminal PDSCH RE, allocating the power value of the to-be-allocated terminal PDSCH RE to the terminal.
5. The method of claim 4, wherein after the power value to be allocated to the terminal PDSCH RE is allocated to the terminal, the method further comprises:
acquiring a difference value between the residual total power value and the power value of the PDSCH RE allocated to the terminal, and judging whether the difference value is larger 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 larger 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, allocating the power value of the PDSCH RE to be allocated to the next terminal to be scheduled.
6. The method of claim 4, wherein after the 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, the method further comprises:
when judging that the residual total power value of the base station in the current scheduling period is smaller than the power value of the PDSCH RE to be allocated to the terminal, comparing the residual total power value with the power value of the PDSCH RE to be allocated to the next terminal to be scheduled in the current scheduling period; wherein, the liquid crystal display device comprises a liquid crystal display device,
if the remaining 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, continuously comparing 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 the next terminal to be scheduled adjacent to the next terminal to be scheduled in the current scheduling period.
7. A power distribution apparatus, comprising:
the receiving module is used for receiving the Reference Signal Received Power (RSRP) value which is measured and reported from the latest of the cell broadcast sub-bands by the current terminal to be scheduled;
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 the terminal-level parameter PA value; 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;
the distribution module is used for distributing power to the terminal according to the PA value configured for the terminal;
the distribution module comprises:
a calculating unit, configured to calculate, according to a PA value configured for the terminal, a power value of a physical downlink shared channel resource element PDSCH RE to be allocated to the terminal;
and the allocation unit is used for carrying out 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.
8. 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 allocation method according to any one of claims 1 to 6 when executing the program.
9. 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 allocation method according to any of claims 1 to 6.
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