CN106332244A - Energy saving method and device of LTE system - Google Patents
Energy saving method and device of LTE system Download PDFInfo
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- CN106332244A CN106332244A CN201510381093.1A CN201510381093A CN106332244A CN 106332244 A CN106332244 A CN 106332244A CN 201510381093 A CN201510381093 A CN 201510381093A CN 106332244 A CN106332244 A CN 106332244A
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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
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
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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
- H04W52/02—Power saving arrangements
-
- 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
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses an energy saving method and a device of an LTE system. The energy saving method comprises steps of: when determining that an energy saving condition is met according to the service volume, determining a sub-frame whose energy should be saved; when the sub-frame whose energy should be saved meets a condition of being set to be in an MBSFN sub-frame format, setting the sub-frame whose energy should be saved to be in the MBSFN sub-frame format; and according to the configuration information of the MBSFN sub-frame, determining a symbol energy saving bitmap. According to the invention, symbol energy saving efficiency of the prior art is further improved.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of Long Term Evolution (LTE, Long Term
Evolution) power-economizing method of system and device.
Background technology
Long Term Evolution (LTE, Long Term Evolution) base station is extensively commercial, and LTE system
Base station power consumption efficiency, is the significant concern point of current conservation-minded society.On the one hand, energy-conservation response state
The energy-conserving and environment-protective strategy of family, on the other hand, lower power consumption brings net profit to operator.In LTE system
Power amplifier is one of device that communication system base station equipment power dissipation is bigger, effective hoisting power amplifier
Efficiency, be to reduce power amplifier power consumption, promote the effective means of base station whole efficiency.
One radio frames of LTE system is 10ms, and each radio frames is made up of, often 10 wireless sub-frames
Individual wireless sub-frame is 1ms, and each wireless sub-frame is at conventional (normal) Cyclic Prefix (CP, Cyclic
Prefix) in the case of, it is made up of 14 symbols, in the case of extension (extend) CP, by 12
Symbol is constituted.
LTE system is the system dynamically distributing physical resource, when portfolio is relatively low, in substantial amounts of subframe
Do not carry the Resource Block (RB, Resource Block) that the useful signal of useful signal or carrying takies
Number is little.Communication system intermediate power amplifier is generally constant unfolding mode at present, and this power amplifier controls
Drawback be when portfolio is relatively low to exist waste of energy.
Down physical channel carrying content include: reference signal (RS, Reference Signal), under
Row synchronizing channel (primary synchronization channel (PSCH, Primary Synchronization Channel) and auxiliary with
Step channel (SSCH, Secondary Synchronization Channel)), for supporting physical layer
Cell searching, it is achieved user terminal is to the identification of community and down-going synchronous.Physical Broadcast Channel (PBCH,
Physical Broadcast Channel) it is used for the physical layer configurations information that broadcast cell is basic.Under physics
Row shares channel (PDSCH, Physical Downlink Shared Channel) for downlink data
Scheduling and transmission.Physical Control Format Indicator Channel (PCFICH, Physical Control Format
Indicator Channel) for indicating the form of physical layer control channel.Physical HARQ Indicator Channel
It is anti-that (PHICH, Physical Hybrid ARQ Indicator Channel) carries transmitting uplink data
Feedforward information.Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel)
The schedule information of carrying uplink/downlink data transmission and uplink power control commands information.Control information is corresponding
OFDM (OFDM, Orthogonal Frequency Division Multiplexing) symbol
Pass close and service access and performance had an impact, so control signal not being carried out symbol shutoff.
Existing way is analysis and Control channel and data channel to the phy symbol of 10 subframe different-formats
Mapping relations, when service traffics are relatively low, by data centralized dispatching in part subframe, obtain 10
The energy-conservation bitmap of symbol of each symbol of time domain of individual subframe, and it is sent to Radio Frequency Subsystem.For to be opened
Subframe, all symbols that Radio Frequency Subsystem is corresponding by opening this subframe, for subframe to be closed, radio frequency
Subsystem opens the symbol that control information is corresponding, and the power amplifier that remaining symbol is corresponding is closed.Wherein, Fig. 1 is
The on and off switch shape of the radio-frequency power amplifier (PA, Power Amplifier) of close symbol turn-off function
State schematic diagram；Fig. 2 is the switching-on and switching-off state signal of the radio-frequency power amplifier opening symbol turn-off function
Figure.Although existing way can realize symbol energy-saving effect, but, in order to reach more preferable energy-saving effect,
Symbol energy-saving efficiency of the prior art needs to be further improved.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides power-economizing method and the device of a kind of LTE system,
For promoting the symbol energy-saving efficiency of prior art further.
In order to reach above-mentioned technical purpose, the present invention provides the power-economizing method of a kind of LTE system, including:
When judging to meet energy saving condition according to portfolio, determine and need energy-conservation subframe；When described needs are energy-conservation
Subframe when meeting the condition being set to multicast/multicast single-frequency network network MBSFN sub-frame form, by described need
Energy-conservation subframe is wanted to be set to MBSFN sub-frame form；According to the configuration information of MBSFN sub-frame, really
Determine the energy-conservation bitmap of symbol.
Further, the condition being set to MBSFN sub-frame form described in includes: control format indicates
CFI is configured to equal to 1 or 2.
Further, the described configuration information according to MBSFN sub-frame, after determining the energy-conservation bitmap of symbol,
The method also includes: control the on off state of power amplifier according to the energy-conservation bitmap of described symbol.
Further, described when judging to meet energy saving condition according to portfolio, determine and need energy-conservation son
After frame, the method also includes: when the subframe that described needs are energy-conservation is unsatisfactory for being set to MBSFN sub-frame
During the condition of form, according to this subframe, determine the energy-conservation bitmap of symbol.
Further, the described configuration information according to MBSFN sub-frame, determine that the energy-conservation bitmap of symbol includes:
By the configuration information of system message SIB2 notice terminal MBSFN sub-frame, and according to MBSFN
Frame format determines the energy-conservation bitmap of symbol with the sequential corresponding relation of conventional cyclic prefix CP.
The present invention also provides for the energy saver of a kind of LTE system, comprises determining that module, for working as root
When judging to meet energy saving condition according to portfolio, determine and need energy-conservation subframe；First processing module, is used for
When the subframe that described needs are energy-conservation meets the condition being set to MBSFN sub-frame form, by described needs
Energy-conservation subframe is set to MBSFN sub-frame form；Second processing module, for according to MBSFN
The configuration information of frame, determines the energy-conservation bitmap of symbol.
Further, the condition being set to MBSFN sub-frame form described in includes: control format indicates
CFI is configured to equal to 1 or 2.
Further, this device also includes: control module, for controlling according to the energy-conservation bitmap of described symbol
The on off state of power amplifier.
Further, described second processing module, it is additionally operable to when the subframe that described needs are energy-conservation is unsatisfactory for setting
When being set to the condition of MBSFN sub-frame form, according to this subframe, determine the energy-conservation bitmap of symbol.
Further, described second processing module, for the configuration information according to MBSFN sub-frame, really
Determine the energy-conservation bitmap of symbol to include: believed by the configuration of system message SIB2 notice terminal MBSFN sub-frame
Breath, and determine symbol according to the sequential corresponding relation of MBSFN sub-frame form Yu conventional cyclic prefix CP
Energy-conservation bitmap.
In the present invention, when judging to meet energy saving condition according to portfolio, determine and need energy-conservation subframe；
It is set to the condition of multicast/multicast single-frequency network network MBSFN sub-frame form when needing energy-conservation subframe to meet
Time, it would be desirable to energy-conservation subframe is set to MBSFN sub-frame form；Configuration according to MBSFN sub-frame
Information, determines the energy-conservation bitmap of symbol.So, symbol is carried out according to the particularity of MBSFN sub-frame form
Turn off, thus reached more preferable energy-saving effect, improve symbol energy-saving efficiency further.
Accompanying drawing explanation
Fig. 1 is the on and off switch shape of the radio-frequency power amplifier of close symbol turn-off function in prior art
The schematic diagram of state；
Fig. 2 is the on and off switch shape of the radio-frequency power amplifier opening symbol turn-off function in prior art
The schematic diagram of state；
The flow chart of the power-economizing method of the LTE system that Fig. 3 provides for the embodiment of the present invention；
Fig. 4 is control format instruction (CFI, Control Format Indicator) routine CP when being 2
The schematic diagram of MBSFN form of sets of resource units (REG)；
Fig. 5 provides the flow chart of the power-economizing method of LTE system for the specific embodiment of the invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, it will be appreciated that described below
Embodiment be merely to illustrate and explain the present invention, be not intended to limit the present invention.
The flow chart of the power-economizing method of the LTE system that Fig. 3 provides for the embodiment of the present invention.Such as Fig. 3 institute
Showing, the power-economizing method of the LTE system that the present embodiment provides comprises the following steps:
Step 11: when judging to meet energy saving condition according to portfolio, determine and need energy-conservation subframe.
Specifically, according to service conditions, when the traffic is below the threshold, user data is concentrated at certain
In a little specific subframes, determine whether this subframe meets by the statistical result of certain measurement period and close bar
Part.If meeting closedown condition, then close a subframe；When portfolio is more than threshold value, then open one
Subframe.
Step 12: be set to multicast/multicast single-frequency network network (MBSFN) when needing energy-conservation subframe to meet
During the condition of sub-frame formats, subframe energy-conservation for described needs is set to MBSFN sub-frame form.
Wherein, multicast/multicast single-frequency network network (MBSFN, Multimedia Broadcast multicast
Service Single Frequency Network) it is a kind of single-frequency to BroadCast MultiCast Service in LTE system
Network technology, refers to belong to same MBMS (MBMS, Multimedia Broadcast
And Multicast Service) community of SFN (SFN, Single Frequency Network) adopts
Send MBMS data by same frequency range simultaneously, receive at receiving terminal simultaneously and carry out soft merging.By
In the traffic performance of the broadcast/multi broadcast of MBSFN, bigger radius of society and the Merging zone method of multi-cell signals
The delay spread come adds the frequency selectivity of wireless channel.Therefore, MBSFN have employed special
Sub-frame formats: MBSFN sub-frame.
MBSFN uses extension CP form, therefore, when sub-frame formats is conventional CP, and MBSFN
Sub-frame formats has 2 parts, and front portion is non-MBSFN territory, and rear portion is MBSFN territory.When
When subframe 0 uses conventional CP, the non-MBSFN territory in MBSFN sub-frame to use conventional CP, and
MBSFN territory to use extension CP, in order to ensure the alignment of subframe sequential relationship, needs to carry out special place
Reason.When non-MBSFN territory accounts for 1 OFDM symbol, to accord with in OFDM symbol 0 and OFDM
352 0 are mended between number 1；When non-MBSFN territory accounts for 2 OFDM symbol, be at OFDM
720 0 are mended between symbol 1 and OFDM symbol 2.Fig. 4 is that control format indicates (CFI, Control
Format Indicator) the MBSFN form of the sets of resource units (REG) of routine CP when being 2
Schematic diagram.As shown in Figure 4, the 1st and the 2nd symbol in MBSFN sub-frame uses conventional CP, and
Retain unicast pilot, may be used for the transmission of the channels such as PDCCH, PCFICH and PHICH.Subframe
In other symbols for MBSFN signal transmit.
It addition, when sub-frame formats is for extension CP, front portion is non-MBSFN territory, rear portion
It it is MBSFN territory.But data form is consistent with extension CP.
Wherein, the condition being set to MBSFN sub-frame form includes: CFI is configured to equal to 1 or 2.
Specifically, owing to MBSFN uses the form of extension CP, and the reference signal of MBSFN
Be positioned at the 3rd symbol of extension CP, by MBSFN sub-frame structural analysis, need to meet CFI=1 and
The reference signal position of MBSFN could not be affected, when CFI is more than 2, due to MBSFN during CFI=2
Reference signal mapping relations, it is impossible to routine CP is set to MBSFN form.
Additionally, for FDD (FDD, Frequency Division Duplexing): One Frame
Bit5 represents subframe 1, bit4 represents subframe 2, bit3 represents subframe 3, bit2 represents subframe 6, bit1 generation
Table subframe 7, bit0 represents subframe 8；For time division duplex (TDD, Time Division Duplexing):
One Frame bit5 represents subframe 3, bit4 represents subframe 4, bit3 represents subframe 7, bit2 represents subframe
8, bit1 represent subframe 9, and bit0 is invalid；It is MBSFN that corresponding bit position is set to subframe corresponding to 1 expression
Subframe, therefore, subframe numbers needs to follow structure parameter in system message SIB2
About the configuration of subframe numbers in mbsfn-SubframeConfigList.
Step 13: according to the configuration information of MBSFN sub-frame, determines the energy-conservation bitmap of symbol.
In this, step 13 is particularly as follows: notify joining of terminal MBSFN sub-frame by system message SIB2
Confidence ceases, and determines according to the sequential corresponding relation of MBSFN sub-frame form with conventional cyclic prefix CP
The energy-conservation bitmap of symbol.
After step 13, the method also includes: control power amplifier according to the energy-conservation bitmap of symbol
On off state.
Specifically, when meet be configured to MBSFN sub-frame form time, notify terminal MBSFN sub-frame
Relevant configuration information.The configuration information of MBSFN sub-frame is positioned in system message SIB2
Mbsfn-SubframeConfigList field, protocol definition structure is as follows.
Energy-conservation when being configured to MBSFN sub-frame, its position changes with portfolio, so
RadioframeAllocationPeriod uses n1, radioframeAllocationOffset to be fixed as 0, and
Use oneFrame, the situation that may be configured as MBSFN sub-frame in notice one radio frames of terminal.
When, after notice terminal MBSFN sub-frame positional information, baseband portion is for the symbol level of sub-frame formats
Process need not change, and still can carry out Symbol processing, simultaneously by radio-frequency module by CP routinely
The sequential corresponding relation of MBSFN form and conventional CP draw the energy-conservation bitmap of symbol.Except retaining control
Channel processed, OFDM symbol corresponding to MBSFN territory is both configured to power save mode, and radio-frequency (RF) power amplification is according to symbol
Number energy-conservation bitmap closes power amplifier, reaches energy-conservation purpose.
Owing to there is the symbols such as pilot tone in common subframe, the symbol numbers that normally can turn off is 10,
When being configured to MBSFN sub-frame, the symbol numbers that at most can turn off reaches 13, compared to commonly
Subframe promotes 30%.So, turn-off technique based on MBSFN can reduce the energy consumption of base station, and
Through experiment access and Performance Evaluation confirm this technology for network and terminal all without affecting.
In an embodiment, after step 12, the method also includes: the subframe energy-conservation when needs is discontented with
When foot is set to the condition of multicast/multicast single-frequency network network MBSFN sub-frame form, according to this subframe, determine
The energy-conservation bitmap of symbol.
The flow chart of the power-economizing method of the LTE system that Fig. 5 provides for the specific embodiment of the invention.Below
Specific embodiment situation is illustrated respectively with reference to Fig. 5.
Embodiment one
This example demonstrates that and open symbol power saving function flow process, wherein, open flow process after symbol power saving function
Start.
Step S101: judge whether that meeting subframe closes condition, specifically, works as industry according to portfolio
When business amount is less than threshold value, user data is concentrated in some specific subframe, according to certain statistics week
The phase result of statistics determines whether this subframe meets closedown condition；
Step S102: when being unsatisfactory for subframe and closing condition, judge whether to meet subframe according to portfolio
Open condition, specifically, when portfolio is more than threshold value, then open a subframe；
Wherein, if being also unsatisfactory for subframe to open condition, then arrive entrance of next detection cycle step S101
It is circulated judgement.
Embodiment two
This example demonstrates that ordinary symbol energy-saving process, wherein, prerequisite is FDD CFI=3, Normal
CP, 2 antennas, after opening symbol power saving function, flow process starts.
Step S101: judge whether that meeting subframe closes condition, if current traffic is relatively according to portfolio
Low, and meet subframe closedown condition, then perform step S201；
Step S201: calculate and close subframe position, in this, according to subframe closing sequence, be first shut off
Subframe 8；
Step S301: judge whether subframe meets MBSFN energy saving condition, such as, CFI, closedown
Whether frame number meets the condition being set to MBSFN sub-frame, in this, owing to CFI is more than 2, therefore,
It is unsatisfactory for being set to MBSFN sub-frame, performs step S401；
Step S401: calculating the energy-conservation bitmap of symbol, Normal CP, 2 antennas, energy-conservation bitmap calculates knot
Fruit is 00010110111011, represents the power save mode of 14 symbols successively, and 0 represents the most energy-conservation, 1
Represent energy-conservation, energy-conservation for symbol bitmap is allocated to power amplifier；
Step S501: power amplifier controls the on off state of power amplifier according to the energy-conservation bitmap of symbol
Carry out energy-conservation.
Embodiment three
This example demonstrates that MBSFN symbol energy-saving process, wherein, prerequisite is FDD CFI=2,
Normal CP, 2 antennas, after opening symbol power saving function, flow process starts.
Step S101: judge whether that meeting subframe closes condition, if current traffic is relatively according to portfolio
Low, and meet subframe closedown condition, then perform step S201；
Step S201: calculate and close subframe position, according to subframe closing sequence, be turned off subframe 8 at present,
According to subframe closing sequence, this time close subframe 7；
Step S301: judge whether subframe meets MBSFN energy saving condition, such as, it is judged that CFI, pass
Close whether subframe numbers meets the condition being set to MBSFN sub-frame, owing to CFI is equal to 2, and subframe numbers
Meeting condition, therefore, this subframe could be arranged to MBSFN sub-frame, afterwards, performs step S402；
Step S402: the configuration information of MBSFN sub-frame is handed down to terminal by system message SIB2,
Terminal reads the configuration information of MBSFN in broadcast after receiving system message SIB2 of broadcast；
Step S403: the energy-conservation bitmap of symbol of calculating MBSFN sub-frame, Normal CP, 2 antennas,
Energy-conservation bitmap result of calculation is 00111111111111, successively the power save mode of 14 symbols of expression, 0
Representing the most energy-conservation, 1 represents energy-conservation, and energy-conservation for symbol bitmap is allocated to power amplifier；
Step S501: power amplifier controls the on off state of power amplifier according to the energy-conservation bitmap of symbol
Carry out energy-conservation.
Embodiment four
This example demonstrates that MBSFN symbol opens flow process, wherein, prerequisite is FDD CFI=2,
Extend CP, 4 antennas, subframe 8, that subframe 7 has carried out MBSFN is energy-conservation.
Step S101: judge whether that meeting subframe closes condition, if current traffic is relatively according to portfolio
Height, is unsatisfactory for subframe and closes condition, then perform step S102；
Step S102: judging whether that meeting subframe opens condition according to portfolio, current traffic is higher,
Meet subframe and open condition, then perform step S201；
Step S201: calculate and open subframe position, according to subframe opening sequence, be turned off subframe 8 at present
With subframe 7, according to subframe opening sequence, this opens subframe 7；
Step S302: judge whether subframe 7 has carried out MBSFN energy-conservation, i.e. judge whether subframe 7 sets
It is set to MBSFN sub-frame, the most then performs step S402；
Step S402: by system message SIB2, subframe 7 is set to common sub-frame information and is handed down to end
End, terminal reads the configuration information of MBSFN in broadcast after receiving system message SIB2；
Step S403: calculating the energy-conservation bitmap of symbol of MBSFN sub-frame, extension CP, CFI are 2,4
Antenna, current energy-conservation bitmap is 001111111111, represents the power save mode of 12 symbols successively,
0 represents the most energy-conservation, and 1 represents energy-conservation, and subframe 7 needs to close energy-conservation, and symbol bitmap is revised as
000000000000, energy-conservation for symbol bitmap is allocated to power amplifier；
Step S501: power amplifier controls the on off state of power amplifier according to the energy-conservation bitmap of symbol
Carry out energy-conservation.
Additionally, the embodiment of the present invention also provides for the energy saver of a kind of LTE system, comprise determining that mould
Block, for when judging to meet energy saving condition according to portfolio, determining and need energy-conservation subframe；At first
Reason module, is used for when the subframe that described needs are energy-conservation meets the condition being set to MBSFN sub-frame form,
Subframe energy-conservation for described needs is set to MBSFN sub-frame form；Second processing module, for basis
The configuration information of MBSFN sub-frame, determines the energy-conservation bitmap of symbol.
Wherein, the condition being set to MBSFN sub-frame form includes: control format instruction CFI is configured to
Equal to 1 or 2.
In an embodiment, said apparatus also includes: control module, for according to the energy-conservation position of described symbol
Figure controls the on off state of power amplifier.
In an embodiment, the second processing module, it is additionally operable to when the subframe that described needs are energy-conservation is unsatisfactory for setting
When being set to the condition of MBSFN sub-frame form, according to this subframe, determine the energy-conservation bitmap of symbol.
In an embodiment, the second processing module, for the configuration information according to MBSFN sub-frame, really
Determine the energy-conservation bitmap of symbol to include: believed by the configuration of system message SIB2 notice terminal MBSFN sub-frame
Breath, and determine symbol according to the sequential corresponding relation of MBSFN sub-frame form Yu conventional cyclic prefix CP
Energy-conservation bitmap.
Additionally, the concrete handling process of said apparatus is with described in said method, therefore repeat no more in this.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.This
Bright it is not restricted to the described embodiments, the simply explanation present invention's described in above-described embodiment and description
Principle, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications,
These changes and improvements both fall within scope of the claimed invention.
Claims (10)
1. the power-economizing method of a Long Term Evolution LTE system, it is characterised in that including:
When judging to meet energy saving condition according to portfolio, determine and need energy-conservation subframe；
It is set to multicast/multicast single-frequency network network MBSFN sub-frame lattice when the subframe that described needs are energy-conservation meets
During the condition of formula, subframe energy-conservation for described needs is set to MBSFN sub-frame form；
According to the configuration information of MBSFN sub-frame, determine the energy-conservation bitmap of symbol.
2. the method for claim 1, it is characterised in that described in be set to MBSFN sub-frame
The condition of form includes:
Control format instruction CFI is configured to equal to 1 or 2.
3. the method for claim 1, it is characterised in that described according to MBSFN sub-frame
Configuration information, after determining the energy-conservation bitmap of symbol, also includes: control merit according to the energy-conservation bitmap of described symbol
The on off state of rate amplifier.
4. the method for claim 1, it is characterised in that described full when judging according to portfolio
During foot energy saving condition, determine after needing energy-conservation subframe, also include: when the subframe that described needs are energy-conservation
When being unsatisfactory for the condition being set to MBSFN sub-frame form, according to this subframe, determine the energy-conservation bitmap of symbol.
5. the method for claim 1, it is characterised in that described according to MBSFN sub-frame
Configuration information, determines that the energy-conservation bitmap of symbol includes: notify terminal MBSFN by system message SIB2
The configuration information of subframe, and corresponding with the sequential of conventional cyclic prefix CP according to MBSFN sub-frame form
Relation determines the energy-conservation bitmap of symbol.
6. the energy saver of a LTE system, it is characterised in that including:
Determine module, for when judging to meet energy saving condition according to portfolio, determining and need energy-conservation son
Frame；
First processing module, for being set to MBSFN sub-frame lattice when the energy-conservation subframe of described needs meets
During the condition of formula, subframe energy-conservation for described needs is set to MBSFN sub-frame form；
Second processing module, for the configuration information according to MBSFN sub-frame, determines the energy-conservation bitmap of symbol.
7. device as claimed in claim 6, it is characterised in that described in be set to MBSFN sub-frame
The condition of form includes:
Control format instruction CFI is configured to equal to 1 or 2.
8. device as claimed in claim 6, it is characterised in that also include: control module, be used for
The on off state of power amplifier is controlled according to the energy-conservation bitmap of described symbol.
9. device as claimed in claim 6, it is characterised in that described second processing module, also uses
In time being unsatisfactory for, when the energy-conservation subframe of described needs, the condition being set to MBSFN sub-frame form, according to this
Subframe, determines the energy-conservation bitmap of symbol.
10. device as claimed in claim 6, its feature exists, and described second processing module, for root
According to the configuration information of MBSFN sub-frame, determine that the energy-conservation bitmap of symbol includes: by system message SIB2
The configuration information of notice terminal MBSFN sub-frame, and according to before MBSFN sub-frame form and regular circulation
The sequential corresponding relation sewing CP determines the energy-conservation bitmap of symbol.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381093.1A CN106332244A (en) | 2015-07-01 | 2015-07-01 | Energy saving method and device of LTE system |
| PCT/CN2016/086046 WO2017000791A1 (en) | 2015-07-01 | 2016-06-16 | Energy-saving method and device for lte system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381093.1A CN106332244A (en) | 2015-07-01 | 2015-07-01 | Energy saving method and device of LTE system |
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| CN106332244A true CN106332244A (en) | 2017-01-11 |
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| CN201510381093.1A Pending CN106332244A (en) | 2015-07-01 | 2015-07-01 | Energy saving method and device of LTE system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019241919A1 (en) * | 2018-06-20 | 2019-12-26 | 华为技术有限公司 | Symbol processing method and related device |
| CN112867113A (en) * | 2021-01-15 | 2021-05-28 | 深圳国人无线通信有限公司 | Energy-saving method and energy-saving system of communication base station |
| WO2021253871A1 (en) * | 2020-06-17 | 2021-12-23 | 中兴通讯股份有限公司 | Power control method for radio-frequency unit, and electronic device and storage medium |
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| CN113438719B (en) * | 2021-06-23 | 2022-11-22 | 中国联合网络通信集团有限公司 | Energy-saving method and device and readable storage medium |
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