WO2016045317A1 - 一种功率控制方法、装置及存储介质 - Google Patents

一种功率控制方法、装置及存储介质 Download PDF

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Publication number
WO2016045317A1
WO2016045317A1 PCT/CN2015/073525 CN2015073525W WO2016045317A1 WO 2016045317 A1 WO2016045317 A1 WO 2016045317A1 CN 2015073525 W CN2015073525 W CN 2015073525W WO 2016045317 A1 WO2016045317 A1 WO 2016045317A1
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Prior art keywords
serving cell
rsrq
value
preset threshold
base station
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PCT/CN2015/073525
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English (en)
French (fr)
Inventor
陈林
张芳
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中兴通讯股份有限公司
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Priority to US15/513,751 priority Critical patent/US10299222B2/en
Publication of WO2016045317A1 publication Critical patent/WO2016045317A1/zh

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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
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • 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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/143—Downlink power control
    • 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
    • H04W52/18—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
    • H04W52/246—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter calculated in said terminal
    • 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
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • 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
    • H04W52/38—TPC being performed in particular situations
    • 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
    • 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
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/283—Power depending on the position of the mobile
    • 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
    • H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
    • 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

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a power control method, apparatus, and storage medium in a street scene.
  • the network deployment consists of small base stations that users or operators do not plan to deploy.
  • the entire block can be composed of multiple buildings, and the small base stations are randomly distributed within the building.
  • All small base stations deployed in the network adopt the "open/hybird" access mode, and the public access to the small base stations can be both indoor users, outdoor users, and entire neighborhoods.
  • the site resources, backhaul resources, and spectrum resources are required for deploying small base stations. Considering the high cost of deploying small base stations outdoors, it is hoped that indoor deployment can achieve both indoor and outdoor coverage.
  • the indoor ultra-dense deployment of small base stations increases the capacity of the entire network system, while users face new challenges in terms of interference, mobility and energy saving; due to the ultra-dense deployment in geospatial space and equal transmission intensity, each The coverage of the small base station is much smaller than that of the macro cell.
  • the user equipment (UE, User Equipment) moving in the scenario frequently switches between the small cell sites, and is in the Key Performance Indicators (KPI).
  • KPI Key Performance Indicators
  • the switching success rate indicator has a large impact; and causes serious pilot pollution and energy waste.
  • embodiments of the present invention are directed to providing a power control method, apparatus, and storage medium, which can effectively reduce pilot pollution, improve user experience, and effectively achieve the UE throughput unchanged or slightly improved.
  • the purpose of energy saving is directed to providing a power control method, apparatus, and storage medium, which can effectively reduce pilot pollution, improve user experience, and effectively achieve the UE throughput unchanged or slightly improved.
  • An embodiment of the present invention provides a power control method, where the method includes:
  • the small base station sets the transmission power
  • the value of the reference signal reception quality (RSRQ, Reference Signal Receiving Quality) of the user equipment UE having the worst channel quality in the serving cell is periodically determined to be less than the preset threshold of the RSRQ, if Less than the RSRQ preset threshold, the transmit power is increased by a certain step.
  • RSRQ Reference Signal Receiving Quality
  • the method before the setting of the transmit power by the small base station, the method further includes: acquiring a maximum value of a Reference Signal Receiving Power (RSRP) and a serving cell load.
  • RSRP Reference Signal Receiving Power
  • the setting, by the small base station, the transmit power includes:
  • the small base station When the neighboring area RSRP maximum value is smaller than the RSRP preset threshold, and/or the serving cell load is greater than or equal to the cell load preset threshold, the small base station is set to be a high power transmission;
  • the serving cell load is less than the preset threshold of the cell load, and determining whether the serving cell includes an outdoor UE. If the outdoor UE is included, setting the small base station to be a high-power transmission; The outdoor UE is not included, and the small base station is set to be low power transmission.
  • determining whether the outdoor UE is included in the serving cell includes:
  • IMSI International Mobile Subscriber Identification Number
  • the periodically determining whether the value of the RSRQ of the UE with the worst channel quality in the serving cell is smaller than the preset threshold of the RSRQ includes:
  • the value of the RSRQ of the UE in the serving cell is periodically collected, and the value of the RSRQ of the UE with the worst channel quality is obtained, and whether the value of the RSRQ of the UE with the worst channel quality is smaller than the preset threshold of the RSRQ.
  • the embodiment of the invention further provides a power control device, the device comprising: a setting module and a processing module; wherein
  • the setting module is configured to set a transmit power
  • the processing module is configured to determine, when the small base station is a low-power transmission, periodically determine whether the value of the RSRQ of the UE with the worst channel quality in the serving cell is less than a preset threshold of the RSRQ, if the preset threshold is less than the RSRQ threshold The value increases the transmit power by a certain step.
  • the device further includes: an acquiring module, configured to acquire a neighboring area RSRP maximum value and a serving cell load.
  • the setting module is configured to determine that the neighboring area RSRP maximum value is smaller than the RSRP preset threshold, and/or the serving cell load is greater than or equal to the cell load preset threshold, and set the small base station to be a high power transmission;
  • the serving cell load is less than the preset threshold of the cell load, and determining whether the serving cell includes an outdoor UE. If the outdoor UE is included, setting the small base station to be a high-power transmission; The outdoor UE is not included, and the small base station is set to be low power transmission.
  • the setting module is configured to acquire an IMSI of all indoor UEs in the serving cell and an IMSI of the active UE in the serving cell, and if the IMSI of the activated UE is not in the IMSI of the indoor UE, the activated UE is an outdoor UE; If the UE's IMSI is activated indoors UE In the IMSI, the activated UE is an indoor UE.
  • the processing module is configured to: when the small base station is configured to perform low-power transmission, periodically collect statistics on the value of the RSRQ of the UE in the serving cell, and obtain the value of the RSRQ of the UE with the worst channel quality, and compare the Whether the value of the RSRQ of the UE with the worst channel quality is less than the preset threshold of the RSRQ.
  • the embodiment of the invention further provides a computer storage medium storing a computer program for performing the power control method of the embodiment of the invention.
  • the small base station sets the transmit power; when the small base station is determined to be low-power transmit, periodically determines whether the value of the RSRQ of the UE with the worst channel quality in the serving cell is It is smaller than the RSRQ preset threshold. If it is less than the RSRQ preset threshold, the transmit power is increased by a certain step.
  • FIG. 1 is a schematic flow chart of a power control method according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a power control method according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of a power control device according to an embodiment of the present invention.
  • the small base station sets the transmit power; when determining that the small base station is a low-power transmission, periodically determines whether the value of the RSRQ of the UE with the worst channel quality in the serving cell is less than the preset threshold of the RSRQ, if Less than the RSRQ preset threshold, the transmit power is increased by a certain amount. Step size.
  • FIG. 1 is a schematic flowchart of a power control method according to an embodiment of the present invention. As shown in FIG. 1 , the power control method process in this embodiment includes:
  • Step 101 The small base station sets a transmit power.
  • the method further includes: obtaining a neighboring area RSRP maximum value and a serving cell load;
  • the acquiring the neighboring area RSRP includes: measuring pilot power of all the small base stations in the neighboring area, and calculating, according to the measured pilot power, the maximum value of the RSRP in all the small base stations in the neighboring area;
  • the acquiring the serving cell load includes: acquiring the occupancy rate of the physical resource block (PRB) of the serving cell or acquiring the number of activated UEs in the serving cell; that is, the serving cell load can use the occupancy rate of the serving cell PRB. It can be indicated that the number of activated UEs in the serving cell can be used again, and the smaller the number of activated UEs, the lower the serving cell load is;
  • PRB physical resource block
  • the acquiring the RSRP maximum value of the neighboring cell and the load of the serving cell are periodic, and acquiring the RSRP maximum value of the neighboring cell and the serving cell load, where the set transmit power is a periodic set transmit power, and the The acquisition is performed in the same cycle as the set operation; wherein the period ranges from 1 hour to 5 hours, and in one embodiment, the period is 1 hour.
  • the setting, by the small base station, the transmit power includes: determining that the neighboring area RSRP maximum value is less than the RSRP preset threshold value RsrpThrd, and/or the serving cell load is greater than or equal to the cell load preset threshold value LoadThrd, and setting the small The base station is a high power P max transmission;
  • the serving cell load is less than the preset threshold of the cell load
  • the high power P max ⁇ [20 dBm, 23 dBm], in one embodiment, the P max is 20 dBm;
  • the cell load preset threshold value LoadThrd takes a value of 1.
  • determining whether the outdoor UE is included in the serving cell includes:
  • the activated UE is an outdoor UE; if the IMSI of the activated UE is in the IMSI of the indoor UE The activated UE is an indoor UE;
  • the acquiring the IMSI of the UE in the serving cell includes: the small base station acquiring the IMSI of the activated UE in the serving cell by activating the registration information of the UE and the signaling that interacts with the UE.
  • Step 102 When determining that the small base station is a low-power transmission, periodically determine whether the value of the reference signal receiving quality RSRQ of the user equipment UE with the worst channel quality in the serving cell is smaller than the RSRQ preset threshold RsrqThrd, if less than the RSRQ pre- Set a threshold value to increase the transmission power by a certain step;
  • the period of the period ranges from 30 seconds to 100 seconds. In an embodiment, the period is 60 seconds;
  • the step size may be one or several steps; wherein a step size ranges from (1 dB, 3 dB), and in one embodiment, the step size is 2 dB.
  • the determining that the small base station is a low-power transmission includes: determining that the neighboring area RSRP maximum value is greater than or equal to the RSRP preset threshold, the serving cell load is less than the cell load preset threshold, and the serving cell does not include the outdoor UE.
  • the small base station is a low power transmission;
  • the value of the RSRQ of the UE in the periodic statistical serving cell includes: the small base station sends a periodic measurement control message to all the UEs in the serving cell, and periodically collects the measurement report reported by the UE in the serving cell, and acquires the serving cell.
  • the value of the RSRQ of the UE in the serving cell; or the small base station periodically acquires the value of the RSRQ of the UE in the serving cell by using other related measurement reports of the UE in the serving cell.
  • FIG. 2 is a schematic flowchart of a power control method according to Embodiment 2 of the present invention. As shown in FIG. 2, the power control method process in this embodiment includes:
  • Step 201 Set and start a power setting timer.
  • the duration of the power setting timer is (1 hour, 5 hours). In the embodiment of the present invention, the duration of the power setting timer is 1 hour.
  • Step 202 Obtain the maximum value of RSRP in all small base stations in the neighboring area:
  • the method includes: measuring pilot power of all small base stations in the neighboring cell, and calculating, according to the measured pilot power, the maximum value of RSRP in all small base stations in the neighboring cell.
  • Step 203 Determine whether the neighboring area RSRP maximum value is smaller than the RSRP preset threshold value RsrpThrd, if yes, go to step 213; if not, go to step 204;
  • the value of the RSRP preset threshold value RsrpThrd is [-100 dBm, -45 dBm]; in this embodiment, the value of the RsrpThrd is -60 dBm.
  • Step 204 Acquire a serving cell load.
  • the serving cell load may be represented by the occupancy rate of the serving cell PRB, and may be represented by the number of activated UEs in the serving cell, and the smaller the number of activated UEs indicates that the service is small.
  • Step 205 Determine whether the serving cell load is lower than the cell load preset threshold LoadThrd, and if yes, go to step 206; otherwise, go to step 213;
  • the value of the cell load preset threshold value LoadThrd is [1, 20], in the embodiment of the present invention, the value of the LoadThrd is 1;
  • the serving cell load may be first obtained, and it is determined whether the serving cell load is lower than the cell load preset threshold LoadThrd. If not, the operation of step 214 is performed; if yes, all the neighboring cells are acquired. The maximum value of the RSRP in the base station is determined, and it is determined whether the maximum RSRP of the neighboring area is smaller than the preset threshold value RsrpThrd of the RSRP. If yes, the operation of step 214 is performed. If not, step 206 is performed.
  • Step 206 Obtain an IMSI of all indoor UEs in the serving cell and an IMSI of the activated UE in the serving cell.
  • the obtaining the IMSI of the activated UE in the serving cell includes: the small base station acquiring the IMSI of the activated UE in the serving cell by activating the registration information of the UE and the signaling that interacts with the UE.
  • Step 207 Determine whether the outdoor cell is included in the serving cell, if yes, go to step 213; if not, go to step 208;
  • the step includes: determining, according to the obtained IMSI of all indoor UEs in the serving cell and the IMSI of the active UE in the serving cell, if the IMSI of the activated UE is not in the IMSI of the indoor UE, the activated UE is an outdoor UE; if the UE is activated The IMSI is in the IMSI of the indoor UE, and the activated UE is an indoor UE.
  • Step 208 Set the small base station to transmit for low power P min , and set and start a power adjustment timer.
  • the low power P min ranges from [-10 dBm, 15 dBm].
  • the P min is 0 dBm;
  • the duration of the power adjustment timer may be (20 seconds, 300 seconds), in the embodiment of the present invention.
  • the duration of the power adjustment timer is 60 seconds.
  • Step 209 Acquire an RSRQ value of a UE with the worst channel quality in the serving cell.
  • the step includes: collecting, by the small base station, the measurement report reported by the UE in the serving cell, collecting the value of the RSRQ of the UE in the serving cell, and obtaining the RSRQ value of the UE with the worst channel quality in the serving cell.
  • Step 210 Determine whether the RSRQ value of the UE with the worst channel quality is less than the RSRQ preset threshold value RsrqThrd, if not, perform step 211; otherwise, perform step 214;
  • the value range of the RSRQ threshold is RsrqThrd is [-20dB, -10dB].
  • the value of RsrqThrd is -16dB.
  • Step 211 Increase the transmission power by a certain step size
  • the step size is a step size.
  • the value of the step size is (1 dB, 3 dB). In this embodiment, the value of the step is 2 dB.
  • Step 212 Determine whether the power adjustment timer expires. If yes, go to step 209; otherwise, go to step 212.
  • Step 213 Set the small base station to transmit high power P max , and perform step 214;
  • the high power P max has a value range of [20 dBm, 23 dBm], and in the embodiment, the P max is 20 dBm.
  • Step 214 Determine whether the power setting timer expires. If yes, go to step 202; otherwise, go to step 214.
  • the power control device of the embodiment of the present invention includes: a setting module 31 and a processing module 32;
  • the setting module 31 is configured to set a transmit power
  • the processing module 32 is configured to determine, when the small base station is a low-power transmission, periodically determine whether the value of the RSRQ of the UE with the worst channel quality in the serving cell is less than a preset threshold of the RSRQ, if the preset threshold is less than the RSRQ Limit, increase the transmit power by a certain step.
  • the apparatus further includes: an obtaining module 33 configured to acquire a neighboring area RSRP Maximum value and service cell load;
  • the acquiring module 33 acquires the maximum value of the neighboring area RSRP.
  • the acquiring module 33 measures the pilot power of all the small base stations in the neighboring area, and calculates the maximum RSRP in all the small base stations in the neighboring area according to the measured pilot power. value;
  • the acquiring module 33 for serving the cell load includes: the acquiring module 33 acquires the occupancy rate of the serving cell PRB, or obtains the number of activated UEs in the serving cell; that is, the serving cell load can be represented by the occupancy rate of the serving cell PRB.
  • the number of activated UEs in the serving cell may be used to indicate that the fewer the number of activated UEs indicates that the serving cell load is lower;
  • the obtaining module 33 acquires the neighboring area RSRP maximum value and the serving cell load, and the setting module 31 sets the transmitting power to perform the periodic execution, and the obtaining and the setting operation are performed. Executed in the same cycle; wherein the period ranges from 1 hour to 5 hours, and in one embodiment, the period is 1 hour.
  • the setting module 31 sets the transmit power, the setting module 31 determines that the neighboring area RSRP maximum value is smaller than the RSRP preset threshold value RsrpThrd, and/or the serving cell load is greater than or equal to the cell load preset threshold. When the value is LoadThrd, set the small base station to transmit high power P max ;
  • the serving cell load is less than the preset threshold of the cell load, and determining whether the serving cell includes an outdoor UE. If the outdoor UE is included, setting the small base station to the high power P max transmission If the outdoor UE is not included, set the small base station to transmit for low power P min ;
  • the high power P max ⁇ [20 dBm, 23 dBm], in one embodiment, the P max is 20 dBm;
  • the cell The load threshold value LoadThrd ⁇ [1, 20], in one embodiment, the LoadThrd takes a value of 1.
  • the determining module 31 determines whether the outdoor UE is included in the serving cell, and the setting module 31 acquires an IMSI of all indoor UEs in the serving cell and an IMSI of the activated UE in the serving cell, if the IMSI of the activated UE is not In the IMSI of the indoor UE, the activated UE is an outdoor UE; if the IMSI of the activated UE is in the IMSI of the indoor UE, the activated UE is an indoor UE;
  • the setting module 31 acquires the IMSI of the activated UE in the serving cell, and the setting module 31 obtains the IMSI of the activated UE in the serving cell by activating the registration information of the UE and the signaling that interacts with the UE.
  • the processing module 32 periodically determines the RSRQ of the UE with the worst channel quality in the serving cell, and the processing module 32 periodically collects the value of the RSRQ of the UE in the serving cell, and obtains the channel quality. Comparing the value of the RSRQ of the difference UE, comparing whether the value of the RSRQ of the UE with the worst channel quality is less than the RSRQ preset threshold value RsrqThrd;
  • the processing module 32 determines that the small base station is a low-power transmission, and the processing module 32 determines that the neighboring area RSRP maximum value is greater than or equal to the RSRP preset threshold, the serving cell load is less than the cell load preset threshold, and the service is When the outdoor UE is not included in the cell, the small base station is a low power transmission;
  • the period of the period ranges from 30 seconds to 100 seconds. In an embodiment, the period is 60 seconds;
  • the processing module 32 periodically collects the value of the RSRQ of the UE in the serving cell, and the processing module 32 sends a periodic measurement control message to all the UEs in the serving cell, and periodically collects the UE reported by the UE in the serving cell.
  • the measurement report acquires the value of the RSRQ of the UE in the serving cell; or the processing module 32 passes the other relevant measurement reporting period of the UE in the serving cell. The value of the RSRQ of the UE in the serving cell is obtained.
  • the certain step size may be one or several steps; wherein a step size ranges from (1 dB, 3 dB), and in one embodiment, the value of the step is It is 2dB.
  • the setting module, the processing module and the obtaining module in the power control device proposed in the embodiment of the present invention may be implemented by a processor, and may also be implemented by a specific logic circuit; wherein the processor may be a mobile terminal or a server.
  • the processor may be a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP), or a field programmable gate array (FPGA).
  • the above power control method is implemented in the form of a software function module and sold or used as a stand-alone product, it may also be stored in a computer readable storage medium.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program, and the computer program is used to execute the power control method of the embodiment of the present invention.

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

Abstract

本发明公开了一种功率控制方法，小基站设置发射功率；确定所述小基站为低功率发射时，周期性的判断服务小区中信道质量最差用户设备（UE）的参考信号接收质量RSRQ的值是否小于RSRQ预设门限值，如果小于RSRQ预设门限值，将发射功率增加一定步长。本发明还同时公开了一种功率控制装置及存储介质。

Description

一种功率控制方法、装置及存储介质 技术领域
本发明涉及移动通信技术领域，尤其涉及街区场景下一种功率控制方法、装置及存储介质。
背景技术
为了大幅提升网络系统容量，第五代移动通信技术(5G，The 5th Generation Telecommunication)场景中每个宏小区区域可以部署成百上千个小基站(Small Cell)。在街区场景(Infrastructure Sharing)下，网络部署由用户或运营商无计划部署的小基站组成，整个街区可由多幢建筑物组成，且小基站在建筑物内随机分布。网络部署的所有小基站采用“open/hybird”访问模式，公开访问小基站的可以同时为室内用户、室外用户及整个街坊。在街区场景下，因部署小基站需要站点资源、backhaul资源和频谱资源等，考虑到在室外部署小基站成本较高，因而希望室内部署能同时达到覆盖室内和室外的效果。
但是，室内超密部署小基站使整个网络系统容量得到提升的同时，用户在受到的干扰、移动性和节能方面就面临新的挑战；由于在地理空间上超密部署且发射强度相等，每个小基站的覆盖范围又大大小于宏小区的覆盖范围，导致在该场景中移动的用户设备(UE，User Equipment)在小基站小区之间频繁的切换，对关键绩效指标(KPI，Key Performance Indicators)中的切换成功率指标影响较大；且造成严重的导频污染及能源浪费。
综上所述，在街区场景下提供一种功率控制方法以提升用户体验，已成为亟待解决的问题。
发明内容
有鉴于此，本发明实施例期望提供一种功率控制方法、装置及存储介质，能够有效降低导频污染，提高用户体验，并在UE吞吐量保持不变或略有提升的情况下，有效达到节能的目的。
为达到上述目的，本发明实施例的技术方案是这样实现的：
本发明实施例提供了一种功率控制方法，所述方法包括：
小基站设置发射功率；
确定所述小基站为低功率发射时，周期性的判断服务小区中信道质量最差用户设备UE的参考信号接收质量(RSRQ，Reference Signal Receiving Quality)的值是否小于RSRQ预设门限值，如果小于RSRQ预设门限值，将发射功率增加一定步长。
上述方案中，所述小基站设置发射功率之前，所述方法还包括：获取邻区参考信号接收功率(RSRP，Reference Signal Receiving Power)最大值及服务小区负荷。
上述方案中，所述小基站设置发射功率包括：
确定邻区RSRP最大值小于RSRP预设门限值，和/或服务小区负荷大于等于小区负荷预设门限值时，设置小基站为高功率发射；
确定邻区RSRP最大值大于等于RSRP预设门限值、服务小区负荷小于小区负荷预设门限值，判断服务小区中是否包含室外UE，如果包含室外UE，设置小基站为高功率发射；如果不包含室外UE，设置小基站为低功率发射。
上述方案中，所述判断服务小区中是否包含室外UE包括：
获取服务小区内所有室内UE的国际移动用户识别码(IMSI，International Mobile Subscriber Identification Number)及服务小区内激活UE的IMSI，如果激活UE的IMSI不在室内UE的IMSI中，则所述激活UE 为室外UE；如果激活UE的IMSI在室内UE的IMSI中，则所述激活UE为室内UE。
上述方案中，所述周期性的判断服务小区中信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值包括：
周期性的统计服务小区中UE的RSRQ的值，并获取信道质量最差UE的RSRQ的值，比较所述信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值。
本发明实施例还提供了一种功率控制装置，所述装置包括：设置模块及处理模块；其中，
所述设置模块，配置为设置发射功率；
所述处理模块，配置为确定所述小基站为低功率发射时，周期性的判断服务小区中信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值，如果小于RSRQ预设门限值，将发射功率增加一定步长。
上述方案中，所述装置还包括：获取模块，配置为获取邻区RSRP最大值及服务小区负荷。
上述方案中，所述设置模块，配置为确定邻区RSRP最大值小于RSRP预设门限值，和/或服务小区负荷大于等于小区负荷预设门限值时，设置小基站为高功率发射；
确定邻区RSRP最大值大于等于RSRP预设门限值、服务小区负荷小于小区负荷预设门限值，判断服务小区中是否包含室外UE，如果包含室外UE，设置小基站为高功率发射；如果不包含室外UE，设置小基站为低功率发射。
上述方案中，所述设置模块，配置为获取服务小区内所有室内UE的IMSI及服务小区内激活UE的IMSI，如果激活UE的IMSI不在室内UE的IMSI中，则所述激活UE为室外UE；如果激活UE的IMSI在室内UE 的IMSI中，则所述激活UE为室内UE。
上述方案中，所述处理模块，配置为确定所述小基站为低功率发射时，周期性的统计服务小区中UE的RSRQ的值，并获取信道质量最差UE的RSRQ的值，比较所述信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质存储有计算机程序，该计算机程序用于执行本发明实施例的功率控制方法。
本发明实施例所提供的功率控制方法、装置及存储介质，小基站设置发射功率；确定所述小基站为低功率发射时，周期性的判断服务小区中信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值，如果小于RSRQ预设门限值，将发射功率增加一定步长。如此，通过设置小基站的发射功率，使得部分小基站处于低功率发射状态、部分小基站处于高功率发射状态，从而有效降低导频污染，避免了小基站密集部署场景下UE的频繁切换，且在UE的吞吐量在保持不变或略有提升的情况下，可以有效达到节能的目的；通过进一步调整发射功率步长，进一步满足用户对小基站发射功率的需求，提高用户体验感。
附图说明
图1为本发明实施例一功率控制方法流程示意图；
图2为本发明实施例二功率控制方法流程示意图；
图3为本发明实施例功率控制装置组成结构示意图。
具体实施方式
在本发明实施例中，小基站设置发射功率；确定所述小基站为低功率发射时，周期性的判断服务小区中信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值，如果小于RSRQ预设门限值，将发射功率增加一定 步长。
图1为本发明实施例一功率控制方法流程示意图，如图1所示，本实施例功率控制方法流程包括：
步骤101：小基站设置发射功率；
本步骤之前，所述方法还包括：获取邻区RSRP最大值及服务小区负荷；
其中，所述获取邻区RSRP包括：测量邻区所有小基站的导频功率，并依据测量得到的导频功率计算获得邻区所有小基站中RSRP的最大值；
所述获取服务小区负荷包括：获取服务小区物理资源块(PRB，Physical Resource Block)的占用率或获取服务小区中激活UE的数目；也就是说，服务小区负荷既可以用服务小区PRB的占用率来表示，又可以用服务小区中激活UE的数目来表示，激活UE的数目越少表示服务小区负荷越低；
在本发明实施例中，所述获取邻区RSRP最大值及服务小区负荷为周期性的获取邻区RSRP最大值及服务小区负荷，所述设置发射功率为周期性的设置发射功率，且所述获取与所述设置的操作在同一周期内执行；其中，所述周期的取值范围为1小时到5小时，在一实施例中，所述周期为1小时。
在一实施例中，所述小基站设置发射功率包括：确定邻区RSRP最大值小于RSRP预设门限值RsrpThrd，和/或服务小区负荷大于等于小区负荷预设门限值LoadThrd时，设置小基站为高功率Pmax发射；
确定邻区RSRP最大值大于等于RSRP预设门限值、且服务小区负荷小于小区负荷预设门限值时，判断服务小区中是否包含室外UE，如果包含室外UE，设置小基站为高功率发射；如果不包含室外UE，设置小基站为低功率Pmin发射；
其中，所述高功率Pmax∈[20dBm，23dBm]，在一实施例中，所述Pmax 为20dBm；
所述低功率Pmin∈[-10dBm，15dBm]，在一实施例中，所述Pmin为0dBm；
所述RSRP预设门限值RsrpThrd∈[-100dBm，-45dBm]；
当所述服务小区负荷采用服务小区中激活UE的数目表示时，所述小区负荷预设门限值LoadThrd∈[1，20]，在一实施例中，所述LoadThrd取值为1。
在一实施例中，所述判断服务小区中是否包含室外UE包括：
获取服务小区内所有室内UE的IMSI及服务小区内激活UE的IMSI，如果激活UE的IMSI不在室内UE的IMSI中，则所述激活UE为室外UE；如果激活UE的IMSI在室内UE的IMSI中，则所述激活UE为室内UE；
其中，所述获取服务小区内激活UE的IMSI包括：小基站通过激活UE的注册信息及与UE交互的信令获取服务小区内激活UE的IMSI。
步骤102：确定所述小基站为低功率发射时，周期性的判断服务小区中信道质量最差用户设备UE的参考信号接收质量RSRQ的值是否小于RSRQ预设门限值RsrqThrd，如果小于RSRQ预设门限值，将发射功率增加一定步长；
这里，所述周期的取值范围为30秒至100秒，在一实施例中，所述周期为60秒；
所述RSRQ预设门限值RsrqThrd∈[-20dB，-10dB]，在一实施例中，所述RsrqThrd取值为-16dB；
所述一定步长可以为一或几个步长；其中，一个步长的取值范围为(1dB，3dB)，在一实施例中所述一个步长的取值为2dB。
本步骤包括：确定所述小基站为低功率发射时，周期性的统计服务小区中UE的RSRQ的值，并获取信道质量最差UE的RSRQ的值，比较所述信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值；如此，考虑 到服务小区中信道质量最差UE的情况，确保每个UE的通话质量，避免了室内UE服务质量变差引起的投诉；
其中，所述确定所述小基站为低功率发射包括：确定邻区RSRP最大值大于等于RSRP预设门限值、服务小区负荷小于小区负荷预设门限值，且服务小区中不包含室外UE时，所述小基站为低功率发射；
所述周期性的统计服务小区中UE的RSRQ的值包括：小基站对服务小区中的所有UE下发周期性测量控制消息，并周期性的收集服务小区中UE上报的测量报告，获取服务小区中UE的RSRQ的值；或者，小基站通过服务小区中UE的其它相关测量报告周期性的获取服务小区中UE的RSRQ的值。
图2为本发明实施例二功率控制方法流程示意图，如图2所示，本实施例功率控制方法流程包括：
步骤201：设置并启动功率设置定时器；
这里，所述功率设置定时器时长的取值范围为(1小时，5小时)，本发明实施例中，所述功率设置定时器的时长为1小时。
步骤202：获取邻区所有小基站中RSRP的最大值:
本步骤包括：测量邻区所有小基站的导频功率，并依据测量得到的导频功率计算获得邻区所有小基站中RSRP的最大值。
步骤203：判断邻区RSRP最大值是否小于RSRP预设门限值RsrpThrd，如果是，执行步骤213；如果不是，执行步骤204；
这里，所述RSRP预设门限值RsrpThrd的取值范围为[-100dBm，-45dBm]；本实施例中所述RsrpThrd的取值为-60dBm。
步骤204：获取服务小区负荷；
这里，所述服务小区负荷既可以用服务小区PRB的占用率来表示，又可以用服务小区中激活UE的数目来表示，激活UE的数目越少表示服务小 区负荷越低；在本发明实施例中，所述服务小区负荷为服务小区中激活UE的数目。
步骤205：判断所述服务小区负荷是否低于小区负荷预设门限值LoadThrd，如果是，执行步骤206；否则，执行步骤213；
这里，所述小区负荷预设门限值LoadThrd的取值范围为[1，20]，本发明实施例中，所述LoadThrd取值为1；
在本发明实施例中，亦可先获取服务小区负荷，判断所述服务小区负荷是否低于小区负荷预设门限值LoadThrd，如果不是，执行步骤214的操作；如果是，获取邻区所有小基站中RSRP的最大值，并判断邻区RSRP最大值是否小于RSRP预设门限值RsrpThrd，如果是，执行步骤214的操作，如果不是，执行步骤206。
步骤206：获取服务小区内所有室内UE的IMSI及服务小区内激活UE的IMSI；
这里，所述获取服务小区内激活UE的IMSI包括：小基站通过激活UE的注册信息及与UE交互的信令获取服务小区内激活UE的IMSI。
步骤207：判断服务小区中是否包含室外UE，如果包含，执行步骤213；如果不包含，执行步骤208；
本步骤包括：依据获得的服务小区内所有室内UE的IMSI及服务小区内激活UE的IMSI判断，如果激活UE的IMSI不在室内UE的IMSI中，则所述激活UE为室外UE；如果激活UE的IMSI在室内UE的IMSI中，则所述激活UE为室内UE。
步骤208：设置小基站为低功率Pmin发射，设置并启动功率调整定时器；
这里，所述低功率Pmin的取值范围为[-10dBm，15dBm]，本实施例中，所述Pmin为0dBm；
所述功率调整定时器的时长可以为(20秒，300秒)，本发明实施例 中，所述功率调整定时器的时长为60秒。
步骤209：获取服务小区中信道质量最差UE的RSRQ值；
本步骤包括：小基站收集服务小区中UE上报的测量报告，统计服务小区中UE的RSRQ的值，并获取服务小区中信道质量最差UE的RSRQ值。
步骤210：判断所述信道质量最差UE的RSRQ值是否小于RSRQ预设门限值RsrqThrd，如果小于，执行步骤211；否则，执行步骤214；
这里，所述RSRQ预设门限值RsrqThrd的取值范围为[-20dB，-10dB]，本实施例中，所述RsrqThrd取值为-16dB。
步骤211：将发射功率增加一定步长；
在本发明实施例中所述一定步长为一个步长；其中，所述一个步长的取值范围为(1dB，3dB)，本实施例中，所述一个步长的取值为2dB。
步骤212：判断功率调整定时器是否超时，如果是，执行步骤209；否则，执行步骤212。
步骤213：设置小基站为高功率Pmax发射，并执行步骤214；
这里，所述高功率Pmax的取值范围为[20dBm，23dBm]，本实施例中，所述Pmax为20dBm。
步骤214：判断功率设置定时器是否超时，如果是，执行步骤202；否则，执行步骤214。
图3为本发明实施例功率控制装置组成结构示意图，如图3所示，本发明实施例功率控制装置组成包括：设置模块31及处理模块32；其中，
所述设置模块31，配置为设置发射功率；
所述处理模块32，配置为确定所述小基站为低功率发射时，周期性的判断服务小区中信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值，如果小于RSRQ预设门限值，将发射功率增加一定步长。
在一实施例中，所述装置还包括：获取模块33，配置为获取邻区RSRP 最大值及服务小区负荷；
这里，所述获取模块33获取邻区RSRP最大值包括：所述获取模块33测量邻区所有小基站的导频功率，并依据测量得到的导频功率计算获得邻区所有小基站中RSRP的最大值；
所述获取模块33服务小区负荷包括：所述获取模块33获取服务小区PRB，的占用率或获取服务小区中激活UE的数目；也就是说服务小区负荷既可以用服务小区PRB的占用率来表示，又可以用服务小区中激活UE的数目来表示，激活UE的数目越少表示服务小区负荷越低；
在本发明实施例中，获取模块33获取邻区RSRP最大值及服务小区负荷的操作，与设置模块31设置发射功率的操作均可为周期性的执行，且所述获取与所述设置的操作在同一周期内执行；其中，所述周期的取值范围为1小时到5小时，在一实施例中，所述周期为1小时。
在一实施例中，所述设置模块31设置发射功率包括：所述设置模块31确定邻区RSRP最大值小于RSRP预设门限值RsrpThrd，和/或服务小区负荷大于等于小区负荷预设门限值LoadThrd时，设置小基站为高功率Pmax发射；
确定邻区RSRP最大值大于等于RSRP预设门限值、服务小区负荷小于小区负荷预设门限值，判断服务小区中是否包含室外UE，如果包含室外UE，设置小基站为高功率Pmax发射；如果不包含室外UE，设置小基站为低功率Pmin发射；
其中，所述高功率Pmax∈[20dBm，23dBm]，在一实施例中，所述Pmax为20dBm；
所述低功率Pmin∈[-10dBm，15dBm]，在一实施例中，所述Pmin为0dBm；
所述RSRP预设门限值RsrpThrd∈[-100dBm，-45dBm]；
当所述服务小区负荷采用服务小区中激活UE的数目表示时，所述小区 负荷门限值LoadThrd∈[1，20]，在一实施例中，所述LoadThrd取值为1。
在一实施例中，所述设置模块31判断服务小区中是否包含室外UE包括：所述设置模块31获取服务小区内所有室内UE的IMSI及服务小区内激活UE的IMSI，如果激活UE的IMSI不在室内UE的IMSI中，则所述激活UE为室外UE；如果激活UE的IMSI在室内UE的IMSI中，则所述激活UE为室内UE；
其中，所述设置模块31获取服务小区内激活UE的IMSI包括：所述设置模块31通过激活UE的注册信息及与UE交互的信令获取服务小区内激活UE的IMSI。
在一实施例中，所述处理模块32周期性的判断服务小区中信道质量最差UE的RSRQ包括：所述处理模块32周期性的统计服务小区中UE的RSRQ的值，并获取信道质量最差UE的RSRQ的值，比较所述信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值RsrqThrd；
所述处理模块32确定所述小基站为低功率发射包括：所述处理模块32确定邻区RSRP最大值大于等于RSRP预设门限值、服务小区负荷小于小区负荷预设门限值，且服务小区中不包含室外UE时，所述小基站为低功率发射；
这里，所述周期的取值范围为30秒至100秒，在一实施例中，所述周期为60秒；
所述RSRQ预设门限值RsrqThrd∈[-20dB，-10dB]，在一实施例中，所述RsrqThrd取值为-16dB；
所述处理模块32周期性的统计服务小区中UE的RSRQ的值包括：所述处理模块32对服务小区中的所有UE下发周期性测量控制消息，并周期性的收集服务小区中UE上报的测量报告，获取服务小区中UE的RSRQ的值；或者，所述处理模块32通过服务小区中UE的其它相关测量报告周期 性的获取服务小区中UE的RSRQ的值。
在一实施例中，所述一定步长可以为一或几个步长；其中，一个步长的取值范围为(1dB，3dB)，在一实施例中，所述一个步长的取值为2dB。
本发明实施例中提出的功率控制装置中的设置模块、处理模块及获取模块都可以通过处理器来实现，当然也可通过具体的逻辑电路实现；其中所述处理器可以是移动终端或服务器上的处理器，在实际应用中，处理器可以为中央处理器(CPU)、微处理器(MPU)、数字信号处理器(DSP)或现场可编程门阵列(FPGA)等。
本发明实施例中，如果以软件功能模块的形式实现上述功率控制方法，并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read Only Memory，ROM)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
相应地，本发明实施例还提供一种计算机存储介质，该计算机存储介质中存储有计算机程序，该计算机程序用于执行本发明实施例的上述功率控制方法。
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。

Claims (11)

  1. 一种功率控制方法，所述方法包括：
    小基站设置发射功率；
    确定所述小基站为低功率发射时，周期性的判断服务小区中信道质量最差用户设备UE的参考信号接收质量RSRQ的值是否小于RSRQ预设门限值，如果小于RSRQ预设门限值，将发射功率增加一定步长。
  2. 根据权利要求1所述方法，其中，所述小基站设置发射功率之前，所述方法还包括：获取邻区参考信号接收功率RSRP最大值及服务小区负荷。
  3. 根据权利要求2所述方法，其中，所述小基站设置发射功率包括：
    确定邻区RSRP最大值小于RSRP预设门限值，和/或服务小区负荷大于等于小区负荷预设门限值时，设置小基站为高功率发射；
    确定邻区RSRP最大值大于等于RSRP预设门限值、服务小区负荷小于小区负荷预设门限值，判断服务小区中是否包含室外UE，如果包含室外UE，设置小基站为高功率发射；如果不包含室外UE，设置小基站为低功率发射。
  4. 根据权利要求3所述方法，其中，所述判断服务小区中是否包含室外UE包括：
    获取服务小区内所有室内UE的国际移动用户识别码IMSI及服务小区内激活UE的IMSI，如果激活UE的IMSI不在室内UE的IMSI中，则所述激活UE为室外UE；如果激活UE的IMSI在室内UE的IMSI中，则所述激活UE为室内UE。
  5. 根据权利要求1或2所述方法，其中，所述周期性的判断服务小区中信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值包括：
    周期性的统计服务小区中UE的RSRQ的值，并获取信道质量最差UE 的RSRQ的值，比较所述信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值。
  6. 一种功率控制装置，所述装置包括：设置模块及处理模块；其中，
    所述设置模块，配置为设置发射功率；
    所述处理模块，配置为确定所述小基站为低功率发射时，周期性的判断服务小区中信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值，如果小于RSRQ预设门限值，将发射功率增加一定步长。
  7. 根据权利要求6所述装置，其中，所述装置还包括：获取模块，配置为获取邻区RSRP最大值及服务小区负荷。
  8. 根据权利要求7所述装置，其中，所述设置模块，配置为确定邻区RSRP最大值小于RSRP预设门限值，和/或服务小区负荷大于等于小区负荷预设门限值时，设置小基站为高功率发射；
    确定邻区RSRP最大值大于等于RSRP预设门限值、服务小区负荷小于小区负荷预设门限值，判断服务小区中是否包含室外UE，如果包含室外UE，设置小基站为高功率发射；如果不包含室外UE，设置小基站为低功率发射。
  9. 根据权利要求8所述装置，其中，所述设置模块，配置为获取服务小区内所有室内UE的IMSI及服务小区内激活UE的IMSI，如果激活UE的IMSI不在室内UE的IMSI中，则所述激活UE为室外UE；如果激活UE的IMSI在室内UE的IMSI中，则所述激活UE为室内UE。
  10. 根据权利要求6或7所述装置，其中，所述处理模块，配置为确定所述小基站为低功率发射时，周期性的统计服务小区中UE的RSRQ的值，并获取信道质量最差UE的RSRQ的值，比较所述信道质量最差UE的RSRQ的值是否小于RSRQ预设门限值。
  11. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执 行指令，该计算机可执行指令用于执行权利要求1至5任一项所述的功率控制方法。
PCT/CN2015/073525 2014-09-23 2015-03-02 一种功率控制方法、装置及存储介质 WO2016045317A1 (zh)

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