CN106507462B - A kind of detection method and device of radio frequency remote unit RRU descending power - Google Patents
A kind of detection method and device of radio frequency remote unit RRU descending power Download PDFInfo
- Publication number
- CN106507462B CN106507462B CN201510564843.9A CN201510564843A CN106507462B CN 106507462 B CN106507462 B CN 106507462B CN 201510564843 A CN201510564843 A CN 201510564843A CN 106507462 B CN106507462 B CN 106507462B
- Authority
- CN
- China
- Prior art keywords
- channel
- descending power
- power
- time slot
- radio frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Abstract
The embodiment of the invention provides the detection method and device of a kind of radio frequency remote unit RRU descending power, the radio frequency remote unit RRU has the channel for carrying out wireless communication, which comprises obtains the descending power in each channel；Obtain the average descending power in each channel respectively using the descending power in each channel；Obtain the link real-time gain of the radio frequency remote unit RRU；The descending power of the radio frequency remote unit RRU is obtained using the average descending power and link real-time gain in each channel.Descending power of the embodiment of the present invention to true reflection equipment comprehensively.
Description
Technical field
The present invention relates to wireless communication technology fields, more particularly to a kind of inspection of radio frequency remote unit RRU descending power
Survey method and a kind of detection device of radio frequency remote unit RRU descending power.
Background technique
As the consciousness of energy-saving and emission-reduction increasingly gos deep into the every aspect of people's life, for the energy consumption of equipment, also increasingly
It is valued by the people.By count equipment descending power, can allow user recognize RRU (Remote Radio Unit, far
Hold radio frequency unit) operating condition of these equipment solves potential problems so that user can adjust equipment configuration parameter in time.
Equipment in a wireless communication system is communicated using radio frames.A kind of wireless frame structure shown in referring to Fig.1
Schematic diagram, the radio frames by two length be 5ms field constitute, each field by 5 length be 1ms subframe
(Subframe) constitute, subframe includes conventional subframe and special subframe, wherein conventional subframe by two length be 0.5ms when
Gap is constituted, total length 1ms, and special subframe is by three special time slot DwPTS (descending pilot frequency time slot, 96chips), GP (protection
Time slot, 96chips) and UpPTS (descending pilot frequency time slot, 160chips) composition, total length 1ms.Switching point is
Switching point.Currently, not being described in detail to descending power in existing document, so the descending power statistical project master of mainstream
To be following several:
Scheme one: using the training sequence in the GP rated power sent as virtual pilot frequency, by PA (Power
Amplifier, power amplifier) delivery outlet radiofrequency signal coupling, decay to suitable performance number, pass through ADC (Analog
To Digital Converter, analog-digital converter) sampling be output to FPGA (Field Programmable Gate
Array, field programmable gate array), FPGA counts the descending power value of numeric field.Software reads the statistics downlink in FPGA
Performance number, it is counter to push back RRU along with the real-time gain of OPD (Output Power Detector, output power detection) link
What the actual downstream power eated dishes without rice or wine was realized.In LTE (Long Term Evolution, long term evolution), obtained descending power
Value can only reflect the case where link, can not reflect true descending power of eating dishes without rice or wine.
Scheme two: the pilot power sent using detection in DwPTS by the radiofrequency signal coupling of PA delivery outlet, is decayed to
Suitable performance number is output to FPGA by ADC sampling, and FPGA counts the descending power value of numeric field.Software reads FPGA
In statistics descending power value, it is counter to push back what the actual downstream power that RRU eats dishes without rice or wine was realized along with the real-time gain of OPD link.
In TD-SCDMA, (Time Division-Synchronization Code Division Multiple Access, time-division are same
The code division multiple access system of step) in, obtained descending power is also the power of DwPTS, and the power of DwPTS is established in cell
It just secures, will not change with the variation of portfolio afterwards, thus it is more unilateral, it cannot reflect the power of entire subframe, more
It can not reflect true descending power of eating dishes without rice or wine.
The either descending power detection scheme or other existing schemes of operational version one or scheme two, all only
It is the unilateral descending power for reflecting RRU and eating dishes without rice or wine, and can not really reflects the descending power that RRU eats dishes without rice or wine comprehensively.Therefore, originally
Field technical staff one of problem in the urgent need to address is, proposes a kind of inspection policies of descending power, to comprehensively true
The descending power of real reflection equipment.
Summary of the invention
The technical problem to be solved is that provide a kind of inspection of radio frequency remote unit RRU descending power for the embodiment of the present invention
Survey method and a kind of detection device of radio frequency remote unit RRU descending power.
To solve the above-mentioned problems, the invention discloses a kind of detection method of radio frequency remote unit RRU descending power, institutes
Radio frequency remote unit RRU is stated with the channel for carrying out wireless communication, the method includes:
Obtain the descending power in each channel；
Obtain the average descending power in each channel respectively using the descending power in each channel；
Obtain the link real-time gain of the radio frequency remote unit RRU；
The radio frequency remote unit RRU is obtained using the average descending power and link real-time gain in each channel
Descending power.
Preferably, the channel is configured with corresponding time slot, the radio frequency remote unit RRU by baseband processing unit BBU
Including register and timer, the register is stored with the time slot descending power in channel；
The step of descending power for obtaining each channel includes:
After the timer expires, the time slot descending power in each channel is obtained from the register；
The time slot descending power in each channel and the time slot descending power in first each channel are added up, obtained
Obtain the descending power in each channel.
Preferably, the time slot descending power is the time slot descending power counted according to default measurement period, the acquisition
The step of descending power in each channel includes:
Judge whether there is the task of high priority to be currently running on the channel；
If so, the time slot descending power in the channel to be counted to the time slot counted for upper one according to default measurement period
Descending power, and trigger the statistics of the next channel slot descending power of the radio frequency remote unit RRU.
Preferably, the step of descending power using channel obtains the average descending power in each channel include:
It is obtained under each channel respectively according to the number of default measurement period statistics time slot descending power；
The descending power and the number in each channel is respectively adopted, obtains the average downlink function in each channel
Rate.
Preferably, the cell information configured by baseband processing unit BBU is stored in the radio frequency remote unit RRU,
Before the descending power for obtaining each channel the step of, further includes:
Judge whether there is cell foundation on the channel using the cell information；
If so, the step of executing the descending power for obtaining each channel；
If it is not, then removing the time slot descending power in the channel stored in the register.
Preferably, the method also includes:
When the radio frequency remote unit RRU accesses the baseband processing unit BBU again, removes and deposited in the register
The time slot descending power in the channel of storage.
Preferably, the cell includes timesharing long term evolution TDL cell and TD SDMA TDS cell, described
Method further include:
If more configured with timesharing long term evolution TDL cell and time division synchronous code division simultaneously in the radio frequency remote unit RRU
Location TDS cell then uses the timesharing long term evolution TDL cell.
Preferably, the task of the high priority includes: that output power detects OPD, reflection power detection RPD, number in advance
The processing DPD of distortion；The link real-time gain includes FPGA statistics power, mainboard gain, power amplifier gain, filter gain.
The embodiment of the invention also discloses a kind of detection device of radio frequency remote unit RRU descending power, the radio frequency is drawn
Remote unit R RU has the channel for carrying out wireless communication, and the device includes:
Descending power obtains module, for obtaining the descending power in each channel；
Average descending power obtains module, for obtaining each channel respectively using the descending power in each channel
Average descending power；
Link real-time gain obtains module, for obtaining the link real-time gain of the radio frequency remote unit RRU；
RRU descending power obtains module, for the average descending power and link real-time gain using each channel
Obtain the descending power of the radio frequency remote unit RRU.
Preferably, the channel is configured with corresponding time slot, the radio frequency remote unit RRU by baseband processing unit BBU
Including register and timer, the register is stored with the time slot descending power in channel；The descending power obtains module packet
It includes:
Time slot descending power acquisition submodule, for being obtained from the register each after the timer expires
The time slot descending power in channel；
Channel descending power obtains submodule, for the time slot descending power in each channel and formerly each is logical
The time slot descending power in road adds up, and obtains the descending power in each channel.
Preferably, the time slot descending power is the time slot descending power counted according to default measurement period, the downlink
Power acquisition module includes:
Task priority judging submodule, for judging whether there is the task of high priority to be currently running on the channel；
If so, descending power is called to update submodule；
Channel descending power updates submodule, for counting the time slot descending power in the channel for upper one according to pre-
If the time slot descending power of measurement period statistics, and trigger the next channel slot descending power of the radio frequency remote unit RRU
Statistics.
Preferably, the average descending power acquisition module includes:
Statistics number submodule counts time slot descending power according to default measurement period under each channel for obtaining respectively
Number；
Average descending power computational submodule is obtained for the descending power and the number in the channel to be respectively adopted
Obtain the average descending power in each channel.
Preferably, the cell information configured by baseband processing unit BBU is stored in the radio frequency remote unit RRU,
The device further include:
Cell establishes judgment module, for judging whether there is cell foundation on the channel using the cell information；If
It is that descending power is then called to obtain module；If it is not, the first register is then called to remove module；
First register removes module, for removing the descending power in the channel stored in the register.
Preferably, described device further include:
Second register removes module, for accessing the baseband processing unit again when the radio frequency remote unit RRU
When BBU, the time slot descending power in the channel stored in the register is removed.
Preferably, the cell includes timesharing long term evolution TDL cell and TD SDMA TDS cell, described
Device further include:
Cell information determining module, if for being configured with timesharing long term evolution TDL in the radio frequency remote unit RRU simultaneously
Cell and TD SDMA TDS cell then use the timesharing long term evolution TDL cell.
Compared with prior art, the embodiment of the present invention includes following advantages:
The descending power in each channel of radio frequency remote unit RRU is counted in the embodiment of the present invention, and using each channel
Descending power obtains the average descending power in channel, is finally obtained according to the average descending power in channel and link real-time gain
The descending power of eating dishes without rice or wine of radio frequency remote unit RRU.The descending power in each channel has been counted in the embodiment of the present invention, has then been carried out
Superposition obtains the average descending power in channel, obtained due to including the power of descending time slot in the descending power in channel
Power is comparatively close to true descending power, more can really reflect the descending power of radio frequency remote unit RRU comprehensively.
The embodiment of the present invention can also be according to the descending power in the channel detected and the downlink function of eating dishes without rice or wine of radio frequency remote unit RRU
Rate is analyzed, and is asked with solving the channel failure detection of single-antenna remote radio unit RRU and multiple antennas radio frequency remote unit RRU
Topic.
In the embodiment of the present invention, if the encountering high priority of the task is currently running, stop carrying out default statistics at this time
The statistics of the descending power in the channel under the period, and using the descending power counted under upper one default measurement period as current statistic
The descending power in the channel in period can detect these needs transmission training of OPD to avoid high-priority task, such as output power
The task of the Complicated Flows such as sequence saves these processes system resource to be occupied, and can more reflect intuitively and clearly
The operating status of radio frequency remote unit RRU.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of wireless frame structure；
Fig. 2 is a kind of step flow chart of the detection method embodiment of radio frequency remote unit RRU descending power of the invention；
Fig. 3 is a kind of schematic diagram of the storage order of TD SDMA TDS data of the invention in a register；
Fig. 4 is a kind of schematic diagram of the storage order of timesharing long term evolution TDL data of the invention in a register；
Fig. 5 is a kind of process schematic of the detection of radio frequency remote unit RRU descending power of the invention；
Fig. 6 is a kind of structural block diagram of the detection device embodiment of radio frequency remote unit RRU descending power of the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Referring to Fig. 2, a kind of step of the detection method embodiment of radio frequency remote unit RRU descending power of the invention is shown
Rapid flow chart, stating radio frequency remote unit RRU can have channel for carrying out wireless communication, can specifically include following step
It is rapid:
Step 101, the descending power in each channel is obtained；
In the concrete realization, radio frequency remote unit RRU may include one or mostly with channel, radio frequency remote unit RRU benefit
It can be carried out wireless communication using radio frames with channel.It wherein, may include subframe under radio frames, when may include under subframe
Gap.
In one preferred embodiment of the invention, the channel is configured with corresponding time slot by baseband processing unit BBU,
The radio frequency remote unit RRU includes register and timer, and the register is stored with the time slot descending power in channel；It is described
Step 101 may include following sub-step:
Sub-step S11 obtains the time slot downlink function in each channel after the timer expires from the register
Rate；
Sub-step S13, by the time slot descending power of the time slot descending power in each channel and first each channel
It adds up, obtains the descending power in each channel.
In embodiments of the present invention, the hardware of radio frequency remote unit RRU is measured in real time the descending power in channel, but
It, will be in the testing result deposit register of current preset measurement period only after receiving the trigger signal of software.
After the timer of radio frequency remote unit RRU expires, radio frequency remote unit RRU opens after receiving software trigger signal
Dynamic software starts the statistics that the descending power in every channel in radio frequency remote unit RRU is carried out according to predetermined period later.Than
Such as, predetermined period can be set as 30s, then will trigger in statistics radio frequency remote unit RRU under every channel by the period of 30s
Row power.
It in embodiments of the present invention, can be by the downlink function in channel in order to improve the accuracy of downlink business power statistic
Rate presets measurement period and is set as 3S, calculates the mean power of the downlink business in 3S.In order to improve software efficiency, using FPGA
The method that (Field Programmable Gate Array, field programmable gate array) takes asynchronous reading,.
The embodiment of the present invention is believed after each timer expires according to the channel number, time slot, frequency point in the channel to be inquired etc.
Breath, reads the descending power counted under the default measurement period in the channel.Referring to a kind of time division synchronous of the invention shown in Fig. 3
The schematic diagram of the storage order of CDMA TDS data in a register and a kind of timesharing of the invention shown in Fig. 4 are long-term
The schematic diagram of the storage order of evolution TDL data in a register in embodiments of the present invention can will be according to default statistics week
Phase, such as it is respectively present different addresses according to each time slot descending power that 3s is period statistics, triggering FPGA statistics goes to lead to
Road whole time slot descending power is specifically matched according to the configuration of the time slot of baseband processing unit BBU configuration, is found in time slot
Descending time slot and special subframe time slot in descender counted.
In one preferred embodiment of the invention, the time slot descending power can be for according to default measurement period statistics
Time slot descending power, the step 101 can also include following sub-step:
Sub-step S11-1 judges whether have the task of high priority to be currently running on the channel；If so, executing son
Step S11-2；
The time slot descending power in the channel is then counted and is united for upper one according to default measurement period by sub-step S11-2
The time slot descending power of meter, and trigger the statistics of the next channel slot descending power of the radio frequency remote unit RRU.
When in the concrete realization, according to the time slot descending power in default measurement period statistics channel, it is sometimes possible to meeting
It encounters and is carrying out on the channel of radio frequency remote unit RRU, or triggering the executing some high priorities of the task, such as
DPD (Digital Pre-Distortion, digital pre-distortion), OPD (Output Power Detector, output power inspection
Survey) and RPD (Return Power Detector, reflection power detection) these tasks, at this point, output power detect OPD these
Task needs to send the Complicated Flows such as training sequence, in embodiments of the present invention in order to save these processes system to be occupied
Resource will use the time slot descending power in the channel that a default measurement period counts on, as in this default measurement period
The time slot descending power in channel, and trigger the inquiry of the time slot descending power in lower channel of radio frequency remote unit RRU.
In the embodiment of the present invention, counted by the time slot descending power in lower channel of automatic trigger, it is ensured that under
When a period arrives, FPGA has counted on the time slot descending power for needing the next channel inquired, thus at raising
Manage efficiency.
In embodiments of the present invention, the maximum power value in the channel counted at present can also be recorded, after being used for
The continuous analysis for radio frequency remote unit RRU is handled.
Step 102, the average descending power in each channel is obtained using the descending power in the channel；
In one preferred embodiment of the invention, the step 102 may include following sub-step:
Sub-step S21 is obtained under each channel respectively according to the number of default measurement period statistics time slot descending power；
The descending power and the number in each channel is respectively adopted in sub-step S22, obtains the flat of each channel
Equal descending power.
In embodiments of the present invention, the channel of radio frequency remote unit RRU is counted on to the channel of each default measurement period
Time slot descending power be overlapped, then again divided by according to default measurement period carry out channel time slot descending power statistics
Number, to obtain the average descending power in the channel.
In the example of concrete application of the present invention, each antenna, each carrier wave for radio frequency remote unit RRU will be pre-
If the descending power of all subframes in measurement period is added divided by number of sub frames, a smooth descent power is calculated, because
Which includes the power of all descending time slots, obtained descending power is comparatively close to true descending power.
In embodiments of the present invention, using radio frequency remote unit RRU hardware in DAC (Digital-to-Analog
Converter, digital analog converter) before module, for each antenna, each carrier wave, according to default measurement period (such as 3
Second), the power calculation for detecting the descending time slot in 3s in all radio frames obtains the average descending power in a smooth channel,
Obtained average descending power is close to true descending power.
In the concrete realization, the channel of radio frequency remote unit RRU may include TDS (Time Division-
Synchronous Code Division Multiple Access, TD SDMA) under channel and TDL
Channel under (Time Division Long Term Evolution, timesharing long term evolution).Channel number and antenna one are a pair of
It answers；Each radio frequency remote unit RRU supports multiple carrier waves, cell can be established at which when baseband processing unit BBU configures cell
A channel, the information configurations such as which carrier wave and time slot are to radio frequency remote unit RRU.
The signal of timesharing long term evolution TDL is broadband signal, can regard only 1 carrier wave as.Its is wireless frame length 10ms, including
10 subframes need to count altogether 80 groups of performance numbers by taking a 8 antenna rf extension unit RRU as an example.Due to Remote Radio Unit
Measurement period is 3s, therefore this 80 groups of performance numbers are the average descending powers of 300 radio frames respective antennas, corresponding time slot.
TD SDMA TDS volume signal is wireless frame length 5ms, including 10 time slots (including special time slot gp, up,
Dw), by taking a 8 antenna rf extension unit RRU establish 12 carrier waves as an example, need to count 960 groups of performance numbers altogether.Due to default
Measurement period is 3s, therefore this 960 groups of performance numbers are 600 radio frames respective antennas, corresponding carrier wave, correspond to the flat of descending time slot
Equal descending power.
It should be noted that since radio frequency remote unit RRU can configure multiple cells, such as timesharing long term evolution simultaneously
TDL cell and TD SDMA TDS cell etc., therefore, the embodiment of the present invention in practical applications, can be according to realities
The configuration information of the radio frequency remote unit RRU on border and baseband processing unit BBU calculates the downlink function in the embodiment of the present invention
Rate.
Step 103, the link real-time gain of the radio frequency remote unit RRU is obtained；
Step 104, the remote radio is obtained using the average descending power and link real-time gain in each channel
The descending power of unit R RU.
In embodiments of the present invention, the hardware of radio frequency remote unit RRU is measured in real time descending power, but is only receiving
It, will be in the testing result deposit register of current preset measurement period to after the trigger signal of software.It is combined by software current small
The power of all descending time slots is read out calculating average value from register by the time slot proportion in area, and junction link is real-time
The descending power of eating dishes without rice or wine of radio frequency remote unit RRU is released in gain.
Link real-time gain=FPGA counts power (dbfs)+(mainboard gain+power amplifier gain+filter gain)
Wherein, mainboard gain, power amplifier gain and filter gain are fixed gains, can fix and be stored in EEPROM
(Electrically Erasable Programmable Read-Only Memory, electrically erasable read-only memory) or its
In his memory.
The embodiment of the present invention need reporting radio frequency extension unit RRU eat dishes without rice or wine descending power when, can be each by what is counted on
After the descending power average computation in a channel, the downlink function of eating dishes without rice or wine of radio frequency remote unit RRU is obtained in conjunction with link real-time gain
Rate is reported to baseband processing unit BBU.
In one preferred embodiment of the invention, it can store in the radio frequency remote unit RRU by base band
Reason unit B BU can also include the following steps: before the step 101 configured with cell information
Judge whether there is cell foundation on the channel using the cell information；
If so, the step of executing the descending power for obtaining the channel；
If it is not, then removing the descending power in the channel stored in the register.
In the concrete realization, it after cell is established, is stored in radio frequency remote unit RRU and is matched by baseband processing unit BBU
The contents such as cell information, channel, power and the time slot set are established if it is cell, then can will set in radio frequency remote unit RRU
Small distinctive emblem is to have been established.Whether had been established by the small distinctive emblem that cell has been established in traversal, remote radio list can be inquired
The channel of first RRU whether there is cell.
In embodiments of the present invention, start the descending power in every channel of triggering statistics in radio frequency remote unit RRU software
Before, it has determined whether cell foundation, if there is no cell suggestion on channel, will from the beginning count radio frequency remote unit RRU
Descending power, to prevent the descending power for radio frequency remote unit RRU channel from counting on half, cell is deleted.In addition,
If there is no cell foundation on the channel to be inquired, the descending power in this root channel can be updated to 0.
In one preferred embodiment of the invention, the method can also include the following steps:
When the radio frequency remote unit RRU accesses the baseband processing unit BBU again, removes and deposited in the register
The descending power in the channel of storage.
When radio frequency remote unit RRU accesses the baseband processing unit BBU again, since configuration information has been sent out
Variation has been given birth to, all global variables are reset, that is, the descending power in all channels formerly counted in a register has been removed, with again
Carry out the statistics of the descending power of radio frequency remote unit RRU.
In one preferred embodiment of the invention, the cell may include timesharing long term evolution TDL cell and time-division
S-CDMA-Synchronous Code Division Multiple Access TDS cell, the method can also include the following steps:
If more configured with timesharing long term evolution TDL cell and time division synchronous code division simultaneously in the radio frequency remote unit RRU
Location TDS cell then uses the timesharing long term evolution TDL cell.
In the concrete realization, if timesharing long term evolution TDL cell and TD SDMA TDS cell simultaneously simultaneously
It deposits, then uses the intermediate-frequency channel number and time slot configuration of timesharing long term evolution TDL cell.If TD SDMA TDS is small
Area does not have dominant frequency point, then defaults intermediate-frequency channel number and time slot configuration using first carrier wave.
Intermediate-frequency channel number is to the serial number after carrier wave sequence, and channel number is the serial number of physical channel.Time division synchronous code division is more
Location TDS has multiple carrier waves, and each carrier wave has center frequency point, but actually generally uses the center frequency point of dominant frequency point, timesharing
Long term evolution TDL general described frequency point be exactly all carrier waves center frequency point (carrier wave of timesharing long term evolution TDL relative to when
It is less for point S-CDMA-Synchronous Code Division Multiple Access TDS, at most there is 3 simultaneously at present).Although actually two of dominant frequency point and frequency point
Conceptive somewhat gap, but practical application in embodiments of the present invention is the same.
In embodiments of the present invention, for the case where there are multiple carrier waves, subsequent for convenience to handle carrier wave, meeting
The carrier wave having built up is ranked up, while a serial number is generated to each carrier wave, this serial number is exactly intermediate-frequency channel
Number, therefore the use of the meaning of the intermediate-frequency channel number of first carrier wave is exactly the serial number using first carrier wave.
It in embodiments of the present invention, can be by the unit and remote radio of the other descending power of the channel level counted on
The unit of descending power and the unit of other data of unit R RU rank are converted.For example, by the other downlink function of channel level
The Conversion of measurement unit of rate is W, for calculating the descending power of radio frequency remote unit RRU rank.It, can will be last in order to save precision
The mean power and maximum power Conversion of measurement unit being calculated are mw.
Certainly, in implementing the embodiments of the present invention, different units can be selected to carry out the system of power according to actual needs
The processing such as meter and calculating, the embodiment of the present invention need not be limit to this.
In order to make those skilled in the art more fully understand the embodiment of the present invention, penetrated below for the embodiment of the present invention
The detection process of frequency extension unit RRU descending power is briefly described.
In the concrete realization, in order to improve the accuracy of radio frequency remote unit RRU downlink business power statistic, by default system
Meter cycle set is 3S, calculates the mean power of the downlink business in 3S；In order to improve software efficiency, the side of asynchronous reading is taken
Method, a kind of process schematic of the detection of radio frequency remote unit RRU descending power of the invention referring to Figure 5, specifically
Detection process can be with are as follows:
Software in step 1, radio frequency remote unit RRU initiates statistics；
Whether step 2, detection have output power detection OPD, reflection power inspection on the channel in radio frequency remote unit RRU
Survey RPD, the task of the processing DPD of digital pre-distortion these high priorities is triggering；If so, return step 1；If it is not, then
Execute step 3；
Step 3 detects whether have output power detection OPD, reflection power detection RPD, number in default measurement period (3s)
The task of these high priorities of the processing DPD of word predistortion is triggered；If so, thening follow the steps 5；If it is not, thening follow the steps 4；
Step 4 obtains descending power in the channel of default measurement period；
Step 5, the descending power for reading the channel counted in last default measurement period, and trigger next channel
The statistics of descending power；
Step 6, the software junction link real-time gain of radio frequency remote unit RRU calculate descending power of eating dishes without rice or wine.
The embodiment of the present invention is using the hardware of radio frequency remote unit RRU in all radio frames in default measurement period
The power statistic of descending time slot, and junction link real-time gain calculates true descending power, in real time increases calculating link
It when beneficial, needs using feedback channel, can consider that current statistic process conflicts with demand of the high-priority task for feedback channel,
In addition, the method for the asynchronous descending power for reading channel can be taken in the embodiment of the present invention in order to improve software efficiency.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Referring to Fig. 6, a kind of structure of the detection device embodiment of radio frequency remote unit RRU descending power of the present invention is shown
Radio frequency remote unit RRU described in block diagram has the channel for carrying out wireless communication, and can specifically include following module:
Descending power obtains module 201, for obtaining the descending power in each channel；
Average descending power obtains module 202, obtains respectively for the descending power using each channel each logical
The average descending power in road；
Link real-time gain obtains module 203, for obtaining the link real-time gain of the radio frequency remote unit RRU；
RRU descending power obtains module 204, for being increased in real time using the average descending power and link in each channel
Benefit obtains the descending power of the radio frequency remote unit RRU.
In one preferred embodiment of the invention, the channel is configured with corresponding time slot by baseband processing unit BBU,
The radio frequency remote unit RRU includes register and timer, and the register is stored with the time slot descending power in channel；It is described
It may include following submodule that descending power, which obtains module 201:
Time slot descending power acquisition submodule, for being obtained from the register each after the timer expires
The time slot descending power in channel；
Channel descending power obtains submodule, for the time slot descending power in each channel and formerly each is logical
The time slot descending power in road adds up, and obtains the descending power in each channel.
In one preferred embodiment of the invention, the time slot descending power can be for according to default measurement period statistics
Time slot descending power, it may include following submodule that the descending power, which obtains module 201:
Task priority judging submodule, for judging whether there is the task of high priority to be currently running on the channel；
If so, descending power is called to update submodule；
Channel descending power updates submodule, for counting the time slot descending power in the channel for upper one according to pre-
If the time slot descending power of measurement period statistics, and trigger the next channel slot descending power of the radio frequency remote unit RRU
Statistics.
In one preferred embodiment of the invention, it may include following son that the average descending power, which obtains module 202,
Module:
Statistics number submodule counts time slot descending power according to default measurement period under each channel for obtaining respectively
Number；
Average descending power computational submodule, for be respectively adopted each channel descending power and described time
Number, obtains the average descending power in each channel.
In one preferred embodiment of the invention, it is stored in the radio frequency remote unit RRU by Base-Band Processing list
The cell information of first BBU configuration, the device can also include following module:
Cell establishes judgment module, for judging whether there is cell foundation on the channel using the cell information；If
It is that descending power is then called to obtain module；If it is not, the first register is then called to remove module；
First register removes module, for removing the descending power in the channel stored in the register.
In one preferred embodiment of the invention, the device can also include following module:
Second register removes module, for accessing the baseband processing unit again when the radio frequency remote unit RRU
When BBU, the time slot descending power in the channel stored in the register is removed.
In one preferred embodiment of the invention, the cell includes timesharing long term evolution TDL cell and time division synchronous
CDMA TDS cell, the device can also include following module:
Cell information determining module, if for being configured with timesharing long term evolution TDL in the radio frequency remote unit RRU simultaneously
Cell and TD SDMA TDS cell then use the timesharing long term evolution TDL cell.
In one preferred embodiment of the invention, the task of the high priority may include: output power detection
OPD, reflection power detect the processing DPD of RPD, digital pre-distortion；The link real-time gain includes FPGA statistics power, mainboard
Gain, power amplifier gain, filter gain.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Above to a kind of detection method and a kind of drawing of radio frequency of radio frequency remote unit RRU descending power provided by the present invention
The detection device of remote unit R RU descending power, is described in detail, and specific case used herein is to the principle of the present invention
And embodiment is expounded, the above embodiments are only used to help understand, and method and its core of the invention is thought
Think；At the same time, for those skilled in the art, according to the thought of the present invention, in specific embodiments and applications
There will be changes, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (13)
1. a kind of detection method of radio frequency remote unit RRU descending power, which is characterized in that the radio frequency remote unit RRU tool
There is the channel for carrying out wireless communication, the method includes:
Obtain the descending power in each channel；The descending power is time slot descending power；The time slot descending power be according to
The time slot descending power of default measurement period statistics；
Obtain the average descending power in each channel respectively using the descending power in each channel；
Obtain the link real-time gain of the radio frequency remote unit RRU；
The downlink of the radio frequency remote unit RRU is obtained using the average descending power and link real-time gain in each channel
Power；
The step of descending power for obtaining each channel includes:
Judge whether there is the task of high priority to be currently running on the channel；
If so, the time slot descending power in the channel to be counted to the time slot downlink counted for upper one according to default measurement period
Power, and trigger the statistics of the next channel slot descending power of the radio frequency remote unit RRU.
2. the method according to claim 1, wherein the channel is by baseband processing unit BBU configured with corresponding
Time slot, the radio frequency remote unit RRU includes register and timer, and the register is stored with the time slot downlink function in channel
Rate；
The step of descending power for obtaining each channel includes:
After the timer expires, the time slot descending power in each channel is obtained from the register；
The time slot descending power in each channel and the time slot descending power in first each channel are added up, obtained each
The descending power in a channel.
3. the method according to claim 1, wherein the descending power using channel obtains each channel
Averagely the step of descending power, includes:
It is obtained under each channel respectively according to the number of default measurement period statistics time slot descending power；
The descending power and the number in each channel is respectively adopted, obtains the average descending power in each channel.
4. according to the method described in claim 2, it is characterized in that, being stored in the radio frequency remote unit RRU by base band
The cell information of processing unit BBU configuration, the descending power for obtaining each channel the step of before, further includes:
Judge whether there is cell foundation on the channel using the cell information；
If so, the step of executing the descending power for obtaining each channel；
If it is not, then removing the time slot descending power in the channel stored in the register.
5. according to the method described in claim 2, it is characterized by further comprising:
When the radio frequency remote unit RRU accesses the baseband processing unit BBU again, removes and stored in the register
The time slot descending power in the channel.
6. according to the method described in claim 4, it is characterized in that, the cell include timesharing long term evolution TDL cell and when
Divide S-CDMA-Synchronous Code Division Multiple Access TDS cell, the method further include:
If timesharing long term evolution TDL cell and TD SDMA TDS are configured in the radio frequency remote unit RRU simultaneously
Cell then uses the timesharing long term evolution TDL cell.
7. the method according to claim 1, wherein the task of the high priority includes: output power detection
OPD, reflection power detect the processing DPD of RPD, digital pre-distortion；The link real-time gain includes FPGA statistics power, mainboard
Gain, power amplifier gain, filter gain.
8. a kind of detection device of radio frequency remote unit RRU descending power, which is characterized in that the radio frequency remote unit RRU tool
There is the channel for carrying out wireless communication, the device includes:
Descending power obtains module, for obtaining the descending power in each channel；The descending power is time slot descending power；Institute
Stating time slot descending power is the time slot descending power counted according to default measurement period；
Average descending power obtains module, for obtaining being averaged for each channel respectively using the descending power in each channel
Descending power；
Link real-time gain obtains module, for obtaining the link real-time gain of the radio frequency remote unit RRU；
RRU descending power obtains module, and the average descending power and link real-time gain for using each channel obtain
The descending power of the radio frequency remote unit RRU；
The descending power obtains module
Task priority judging submodule, for judging whether there is the task of high priority to be currently running on the channel；If so,
Descending power is then called to update submodule；
Channel descending power updates submodule, for counting the time slot descending power in the channel for upper one according to default system
The time slot descending power of period statistics is counted, and triggers the system of the next channel slot descending power of the radio frequency remote unit RRU
Meter.
9. device according to claim 8, which is characterized in that the channel is by baseband processing unit BBU configured with corresponding
Time slot, the radio frequency remote unit RRU includes register and timer, and the register is stored with the time slot downlink function in channel
Rate；The descending power obtains module
Time slot descending power acquisition submodule, for obtaining each channel from the register after the timer expires
Time slot descending power；
Channel descending power obtains submodule, for by the time slot descending power in each channel and first each channel
Time slot descending power adds up, and obtains the descending power in each channel.
10. device according to claim 8, which is characterized in that the average descending power obtains module and includes:
Statistics number submodule, for being obtained under each channel respectively according to time of default measurement period statistics time slot descending power
Number；
Average descending power computational submodule obtains each for the descending power and the number in the channel to be respectively adopted
The average descending power in a channel.
11. device according to claim 9, which is characterized in that be stored in the radio frequency remote unit RRU by base band
The cell information of processing unit BBU configuration, the device further include:
Cell establishes judgment module, for judging whether there is cell foundation on the channel using the cell information；If so,
Descending power is called to obtain module；If it is not, the first register is then called to remove module；
First register removes module, for removing the descending power in the channel stored in the register.
12. device according to claim 9, which is characterized in that further include:
Second register removes module, for accessing the baseband processing unit BBU again when the radio frequency remote unit RRU
When, remove the time slot descending power in the channel stored in the register.
13. device according to claim 11, which is characterized in that the cell include timesharing long term evolution TDL cell and
TD SDMA TDS cell, the device further include:
Cell information determining module, if for being configured with timesharing long term evolution TDL cell in the radio frequency remote unit RRU simultaneously
With TD SDMA TDS cell, then the timesharing long term evolution TDL cell is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564843.9A CN106507462B (en) | 2015-09-07 | 2015-09-07 | A kind of detection method and device of radio frequency remote unit RRU descending power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564843.9A CN106507462B (en) | 2015-09-07 | 2015-09-07 | A kind of detection method and device of radio frequency remote unit RRU descending power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106507462A CN106507462A (en) | 2017-03-15 |
| CN106507462B true CN106507462B (en) | 2019-11-29 |
Family
ID=58287068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510564843.9A Active CN106507462B (en) | 2015-09-07 | 2015-09-07 | A kind of detection method and device of radio frequency remote unit RRU descending power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106507462B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462431B (en) * | 2018-12-07 | 2021-05-18 | 京信通信系统（中国）有限公司 | Signal gain compensation method and device |
| CN111669810B (en) * | 2020-05-12 | 2022-04-26 | 中国联合网络通信集团有限公司 | Energy-saving method and device for digital indoor distribution system |
| CN113795047B (en) * | 2021-09-15 | 2023-11-17 | 深圳市佳贤通信设备有限公司 | Downlink energy saving method, system, computer equipment and storage medium |
| CN114567393B (en) * | 2022-03-10 | 2023-07-11 | 四川恒湾科技有限公司 | Down link self-detection method of remote radio unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771458A (en) * | 2008-12-30 | 2010-07-07 | 大唐移动通信设备有限公司 | Overpower protection method and device of far-end radio-frequency system of base station |
| CN102065531A (en) * | 2009-11-13 | 2011-05-18 | 中兴通讯股份有限公司 | Power calibrating method and device |
| CN103281139A (en) * | 2013-05-10 | 2013-09-04 | 大唐移动通信设备有限公司 | Method and system for detecting output power of dual-mode RRU (remote radio unit) equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140091616A (en) * | 2006-12-26 | 2014-07-21 | 달리 시스템즈 씨오. 엘티디. | Method and system for baseband predistortion linearization in multi-channel wideband communication systems |
| CN101841902B (en) * | 2009-11-25 | 2013-06-05 | 上海华为技术有限公司 | Method and device for obtaining timeslot power |
-
2015
- 2015-09-07 CN CN201510564843.9A patent/CN106507462B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771458A (en) * | 2008-12-30 | 2010-07-07 | 大唐移动通信设备有限公司 | Overpower protection method and device of far-end radio-frequency system of base station |
| CN102065531A (en) * | 2009-11-13 | 2011-05-18 | 中兴通讯股份有限公司 | Power calibrating method and device |
| CN103281139A (en) * | 2013-05-10 | 2013-09-04 | 大唐移动通信设备有限公司 | Method and system for detecting output power of dual-mode RRU (remote radio unit) equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106507462A (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106507462B (en) | A kind of detection method and device of radio frequency remote unit RRU descending power | |
| CN107171848B (en) | Flow prediction method and device | |
| CN102006124B (en) | Spectrum forecasting method, device and system | |
| CN112534857B (en) | Energy saving method, energy saving device and computer readable storage medium | |
| CN103813462B (en) | Method and device for co-cell resource distribution of multiple remote radio units | |
| CN109392005A (en) | A kind of method of signal strength measurement, relevant apparatus and system | |
| CN103582514B (en) | Method and apparatus for carrier aggregation processing | |
| CN104754631B (en) | It is a kind of to check the method and system of area interference, network management | |
| CN109392139A (en) | It is a kind of to receive the resource location indicating means to broadcast the message, apparatus and system | |
| CN108024339A (en) | A kind of method and apparatus of the time-domain resource of definite reference signal mapping | |
| CA2746745A1 (en) | Capacity monitoring of multi-service networks | |
| CN106788587A (en) | A kind of determination method and device of interference type | |
| CN107154829A (en) | Determine the up method and apparatus from system interference in wireless communication system | |
| CN103702343B (en) | The detection method and device of a kind of inter-frequency interference cell | |
| CN102142907B (en) | Method and device for detecting radio frequency channels | |
| CN104684091B (en) | Network architecture method of adjustment, device, network scheduling controller and base station | |
| CN102811492B (en) | A kind of method of channeling and communication system | |
| Li et al. | Energy-efficient channel hopping protocol for cognitive radio networks | |
| CN102769861B (en) | User attribute determining method, inter-cell interference coordination method and base station | |
| CN109511124A (en) | Configuration method, terminal and the base station that method, the terminal of terminal measurement report measure | |
| CN102394708A (en) | Method and system for testing mobile communication equipment | |
| CN110248378A (en) | A kind of localization method and device | |
| CN102257857B (en) | Method and device for compensating power according to frequency | |
| CN108347289A (en) | A kind of disturbance coordination method and device | |
| CN109358222B (en) | Electric energy quality transient event identification method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |