CN107172690B - Reduce the method and device of terminal chip MIMO detector power consumption - Google Patents
Reduce the method and device of terminal chip MIMO detector power consumption Download PDFInfo
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- CN107172690B CN107172690B CN201610130476.6A CN201610130476A CN107172690B CN 107172690 B CN107172690 B CN 107172690B CN 201610130476 A CN201610130476 A CN 201610130476A CN 107172690 B CN107172690 B CN 107172690B
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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
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
- H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
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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
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Abstract
The present invention provides a kind of method and devices for reducing terminal chip MIMO detector power consumption, this method comprises: multi-antenna data is first input into data buffer, then are output to MIMO detector；According to the signal that the data buffer exports, power management module executes the power on operation process to the MIMO detector；The MIMO detector is completed in the frame time length of predetermined quantity after all data MIMO detections, the power supply of shutdown MIMO detector.Solve the problems, such as that the power consumption of MIMO detector in terminal baseband chip in the prior art is excessive.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of reduction LTE, (Long Term Evolution, is drilled for a long time
Into) method of terminal chip MIMO (Multiple-Input Multiple-Output, multiple-input and multiple-output) detector power consumption
And device.
Background technique
High speed wireless data access service and number of users increase rapidly, need higher rate, larger capacity it is wireless
The support of link, and determine the most fundamental factor of transmission of radio links efficiency and be channel capacity.Multi-aerial space multiplexing MIMO
Technology effectively increases channel capacity, is the core technology of LTE system.
Detection for Spatial Multiplexing Scheme of MIMO System, existing detection algorithm mainly include linearity test, sequence interference support
Disappear (SIC) detection, Maximum Likelihood Detection (ML).
Linear signal detection algorithm be by from the expectation information flow of objective emission antenna as useful information, while other
Emit signal as interference, minimizes or eliminate the interference signal from other transmitting antennas.Basic linear detection algorithm packet
Include Zero-forcing method and minimum mean square error method.
SIC algorithm is to use nonlinear Interference Cancellation strategy based on linearity test, and transmitting signal is demodulated step by step.
Linearity test does not efficiently use the channel gain of multiple antennas directly by other signals as noise filtering, and SIC is by other antennas
Signal introduce step by step, once will between multiple antennas interference eliminate until the last one antenna signal demodulate.SIC utilize by
The method of secondary iteration significantly improves the classification gain of system compared to linearity test.
The hardware realization complexity of linearity test detection algorithm and SIC algorithm is relatively low, but the two is serious in decline
Poor performance under wireless channel has biggish gap with the performance of ML detection algorithm.
ML detection method calculates the Euclidean distance received between signal and all possible vectors, and finds a minimum
Distance.When all transmitting vectors etc. are possible, ML method reaches the optimum performance of maximum a posteriori probability (MAP) detection.
Terminal side number of antennas increases the implementation complexity that can improve MIMO detection algorithm.Especially to the ML of better performances
Algorithm, its computation complexity steeply rise with the increase of order of modulation and antenna amount.
With the continuous evolution of LTE technology, the number of wires that terminal side uses is more and more, and terminal has been in R10 version
Reach four antennas.In the area, power dissipation overhead of terminal side baseband chip, MIMO detector occupies higher and higher ratio
Example.The power consumption for reducing MIMO detector in baseband chip is significant for reducing baseband chip overall power.
For mobile device, performance is critically important, but influences the principal element or battery of mobile device competitiveness
It is service life, especially even more so in LTE terminal market.The energy consumption expense of terminal chip determines the battery life of a terminal.
For TD-LTE terminal baseband chip, operation mode can be divided into several states such as shutdown, standby, work,
Its power consumption can be divided into stand-by power consumption and operating power consumption.In current baseband chip design scheme, terminal in the standby state, base band
Most of functional module can be closed to save power consumption, extend battery life.And in the operational mode, mainly using gated clock,
High-threshold transistors reduce power dissipation overhead.
The existing method for reducing power consumption is very effective under semiconductor CMOS process technical conditions earlier.But in mesh
In preceding more advanced semiconductor CMOS process (such as 28nm, 14nm technique), dropped with the methods of gated clock, high-threshold transistors
The method of power consumption under low operating mode can encounter new problem.
There are mainly three types of the Power Consumption Sources of semiconductor CMOS circuit:
Dynamic power consumption: the power consumption that transistor is generated in signal switching process；
Short-circuit dissipation: refer to that PMOS tube and NMOS tube simultaneously turn on the power consumption of generation；
Quiescent dissipation: transistor is in no any activity, power consumption consumed by Leakage Current.
Under the conditions of semiconductor process technique earlier, transistor drain current be it is extremely small, quiescent dissipation is neglected substantially
Slightly disregard.And in the design of deep-submicron, device feature size constantly reduces, and device threshold voltage also constantly reduces, by than
It is increasing that example reduces electricity leakage power dissipation caused by theory.The electric leakage of cmos device mainly includes sub-threshold leakage and electric leakage of the grid.
Wherein sub-threshold leakage is also very sensitive to temperature change, and temperature raising can bring increasing considerably for electricity leakage power dissipation.
Most of functional module power supply is closed in current baseband chip design scheme, when standby mode, corresponding module is not
Energy is consumed again.And mainly used when operating mode gated clock lower dynamic power consumption, reduced using high-threshold transistors it is quiet
State power consumption.Relative to Low threshold transistor, high-threshold transistors reduce quiescent dissipation, but its electricity leakage power dissipation to a certain extent
Still the larger proportion of transistor dissipation is occupied.In addition, the delay of high-threshold transistors is larger, used in High-speed Board Design
Ratio is lower.Therefore, in the design of deep-submicron, the method for the quiescent dissipation that conventionally employed Low threshold transistor reduces has
Significant limitations.
In realizing process of the present invention, at least there are the following problems in the prior art: LTE terminal core at present for inventor's discovery
Piece is all manufactured using advanced deep submicron process.The method of gated clock can not reduce quiescent dissipation；And high-threshold transistors
The limitation of method is big.In the operating condition, how to inhibit the quiescent dissipation rapid growth of MIMO detector is a challenge.
Summary of the invention
For the power consumption problems of too of MIMO detector in terminal baseband chip in the prior art, conventional method can not have
Effect inhibits the problem of rapid growth of quiescent dissipation, and the embodiment of the present invention proposes a kind of reduction terminal chip MIMO detector function
The method and device of consumption.
According to one aspect of the present invention, a kind of method for reducing terminal chip MIMO detector power consumption is provided, it is described
Method includes: that multi-antenna data is first input into data buffer, then is output to multiple-input and multiple-output MIMO detector；According to described
The signal of data buffer output, power management module execute the power on operation process to the MIMO detector；The MIMO
Detector is completed in the frame time length of predetermined quantity after all data MIMO detections, the power supply of shutdown MIMO detector.
Optionally, the signal exported according to the data buffer, power management module, which executes, examines the MIMO
Survey the power on operation process of device, comprising: after the subframe time length of data cached a predetermined level is exceeded, data buffer output
First signal to the power management module, the power management module opens the MIMO detector according to first signal
Power supply；When the data cached frame time length for reaching predetermined quantity, data buffer exports second signal to the power supply
Management module, the power management module configure the running parameter of the MIMO detector according to the second signal, then institute
It states MIMO detector and carries out MIMO Data Detection, and export detection data.
Optionally, the power management module configures the running parameter of the MIMO detector according to the second signal,
Including: the power management module resets the MIMO detector according to the second signal, then the MIMO detector into
Row initial work configures the running parameter of the MIMO detector with the time for being less than scheduled time numerical value.
Optionally, the scheduled time numerical value was 30~50 nanoseconds.
Optionally, the frame time length of the predetermined quantity is 1 frame.
Optionally, the MIMO detector is completed in the frame time length of predetermined quantity after all data MIMO detections, pass
Break the power supply of the MIMO detector, comprising: MIMO detector completes all data in the frame time length of the predetermined quantity
After MIMO detection, output third signal to the power management module；The power management module is closed according to the third signal
Break the power supply of the MIMO detector.
According to another aspect of the invention, a kind of device for reducing terminal chip MIMO detector power consumption is additionally provided,
Described device includes: data buffer, power management module and MIMO detector, wherein data buffer receives multiple antennas number
According to, and cache and receive the multi-antenna data；After completing the data buffer storage of frame time length of predetermined quantity, power management
Module opens the power supply of the MIMO detector, and the MIMO detector carries out MIMO Data Detection, and exports detection data,
The MIMO detector is completed in the frame time length of the predetermined quantity after all data MIMO detections, the power management mould
Block turns off the power supply of the MIMO detector.
Optionally, after the subframe time length of the data cached a predetermined level is exceeded of the data buffer, the data
Buffer exports the first signal to the power management module, and the power management module is according to first signal unlatching
The power supply of MIMO detector；When the frame time length for reaching predetermined quantity when the data buffer is data cached, the data
Buffer exports second signal to the power management module, and the power management module is according to second signal configuration
The running parameter of MIMO detector, the MIMO detector carries out MIMO Data Detection, and exports detection data.
Optionally, the MIMO detector is resetted according to the second signal, then carries out initial work, and use is small
In the time configuration work parameter of scheduled time numerical value.
Optionally, the MIMO detector completes all data MIMO detections in the frame time length of the predetermined quantity
Afterwards, third signal is exported to the power management module；The power management module is according to the third signal, described in shutdown
The power supply of MIMO detector.
The beneficial effects of the present invention are: in the present embodiment, multi-antenna data is first input into data buffer, then is output to
MIMO detector.According to the signal that data buffer exports, the power management module of MIMO detector executes power on operation process.
It completes in the frame time length of predetermined quantity to turn off the power supply of MIMO detector at once after all data MIMO detection, due to can
To determine free time according to the actual throughput rates of the MIMO detector of terminal chip.For example, only being switched in 1 frame primary
The power supply of MIMO detector influences very little to electric power network, it is easy to accomplish.It is different according to hardware circuit different operating frequency,
Power cutoff at the end of detection does not waste the power consumption during power supply, sufficiently lowers unnecessary power consumption.
Detailed description of the invention
Fig. 1 is the flow chart that the method for terminal chip MIMO detector power consumption is reduced in the first embodiment of the present invention；
Fig. 2 is the flow chart that the method for terminal chip MIMO detector power consumption is reduced in the second embodiment of the present invention；
Fig. 3 is the apparatus structure that the method for terminal chip MIMO detector power consumption is reduced in the third embodiment of the present invention
Figure.
Specific embodiment
In the frame structure of TD-LTE, a frame is 10ms, includes 10 subframes, each subframe 1ms.It is needed according to system communication
It asks, different subframes can be configured to uplink (U), downlink (D), special (S) three types in a frame, table specific as follows:
Table 1TD-LTE uplink-downlink configuration
Wherein, uplink-downlink configuration mode 5 have 8 downlink subframes can be used for base station give terminal transmission PDSCH data；Uplink and downlink
Only 2 downlink subframes of configuration mode 0 can be used for base station and transmit PDSCH data to terminal.Under the premise of given frequency domain resource,
Uplink-downlink configuration mode 5 corresponds to maximum downstream throughput, and uplink-downlink configuration mode 0 corresponds to minimum throughput, and throughput phase
Poor 4 times.
The frame structure for analyzing TD-LTE, finds under different uplink-downlink configuration modes, the type of downlink subframe number has 6 kinds.
It is up to 8 downlink subframes, minimum 2 downlink subframes, there are two types of be all 6 downlink subframes.Corresponding different MIMO detection
Device throughput.
For the MIMO detector of TD-LTE terminal chip, hardware realization is the maximum throughput rate design based on base band,
The area for occupying chip is larger, and bring power dissipation overhead is also very big.During practical communication, TD-LTE is each terminal user
Time domain (uplink-downlink configuration mode), the frequency domain channel resource of configuration be not identical.MIMO detector in each terminal baseband chip
Be not necessarily all to work under maximum throughput rate.That is, being had after MIMO detector completes the Detection task to stator frame
A period of time is in idle condition.Inhibit the power consumption under idle state extremely important.
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
First embodiment
Referring to Fig. 1, the method for reducing terminal chip MIMO detector power consumption is shown in figure, the specific steps are as follows:
Step S101, multi-antenna data is first input into data buffer, then is output to MIMO detector；
Optionally, the data buffer can store the multi-antenna data of 1 frame in the present embodiment.Certainly it needs to illustrate
It is not limit the length of data buffer storing data in the present embodiment.
Step S103, the signal exported according to data buffer, power management module execution power on MIMO detector
Operating process；
Step S104, MIMO detector completes shutdown in the frame time length of predetermined quantity after all data MIMO detections
The power supply of MIMO detector.
Optionally, the frame time length of above-mentioned predetermined quantity can be 1 frame time length.It should be noted that MIMO is examined
Survey register in device, the detection data in memory does not need to save between subframe.
In the present embodiment, in the standby state, all modules (such as data buffer, power management module, MIMO inspection
Survey device) power supply is all closed, without energy consumption.Under non-standby state, data buffer and power management module are bands always
The power supply of electricity, MIMO detector is controlled by power management module.Under non-standby state, power management module is to charge always
, but its simple control for only carrying out power management scheme and switching, and the parameter configuration after powering on every time, logic is simple,
Own hardware power consumption is very low.
As shown in table 2, under different TD-LTE uplink-downlink configuration modes, downlink subframe number is different, downlink subframe in 1 frame
Time is not also identical.If it is considered that power source design, conventional method are: it is the power supply of MIMO detector in the downlink subframe time, and
The non-downlink subframe time turns off MIMO detector power supply.There are two major defects for the method: (1) position of the downlink subframe in a frame
It is not continuous for setting, and the method will lead to the power supply to MIMO detector and frequently turn off, and bring to electric power network larger impact.
(2) in power-on time, hardware may complete detection work, but power supply is not closed in time, and lower power consumption is unobvious.
The time of downlink subframe in 1 frame of table 2:TD-LTE
And the embodiment of the present invention preferably resolves the above problem: (1) can an only MIMO inspection of switch in a frame
The power supply for surveying device influences very little to electric power network, it is easy to accomplish.(2) different according to hardware circuit different operating frequency, it is detecting
At the end of power cutoff.The power consumption during power supply is not wasted, unnecessary power consumption is sufficiently lowered.If using higher work frequency
When rate, the power-on time of MIMO detector will be very short, effectively reduces quiescent dissipation.In addition, based on time domain pilot sequence into
When row time domain channel is estimated, most of implementations require a channel evaluation data buffer, to keep in the data letter of 1 frame
Number.Therefore, borrowing channel evaluation data buffer can be realized the function of data-signal of 1 frame of storage, not additional to increase firmly
Part expense.
Second embodiment
Referring to fig. 2, the method for reducing terminal chip MIMO detector power consumption is shown in figure, the specific steps are as follows:
Step S201, multi-antenna data is first input into data buffer, then is output to MIMO detector；
Step S203, after the subframe time length of data cached a predetermined level is exceeded, the first signal of output to power supply pipe
Module is managed, and opens the power supply of MIMO detector according to the first signal；When the data cached frame time length for reaching predetermined quantity
When, output second signal to power management module, and according to the running parameter of second signal configuration MIMO detector, MIMO detection
Device carries out MIMO Data Detection, and exports detection data；
Optionally, power management module is according to second signal reset MIMO detector in step S203, and then MIMO is examined
It surveys device and carries out initial work, with the running parameter for the time configuration MIMO detector for being less than scheduled time numerical value.Wherein, in advance
Fixed time numerical value can be 30~50ns (nanosecond), preferably 40ns.
Step S205, it completes in the frame time length of predetermined quantity after all data MIMO detections, output third signal is extremely
Power management module；Power management module turns off the power supply of MIMO detector according to third signal.
For example, multi-antenna data is first input into data buffer, when it is data cached more than 9 subframe time length after,
It issues " be near completion 1 frame buffer signal "；When it is data cached reach 1 frame time length when, issue " complete 1 frame buffer signal ".
After power management module receives " be near completion 1 frame buffer signal ", the power supply of MIMO detector is opened.Power management module receives
After " completing 1 frame buffer signal ", MIMO detector is resetted first.Then initial work is carried out, is matched with the time less than 40ns
Set all working parameter of MIMO detector.After completing initialization, MIMO detector detection multi-antenna data simultaneously exports testing number
According to.Complete sending " signal is completed in detection " in this frame after all data MIMO detections.Power management module, which receives, " have been detected
At signal " after, close the power supply of MIMO detector.
In the present embodiment, in the standby state, all modules all close power supply, without energy consumption.In non-standby shape
Under state, the power management module of data buffer and MIMO detector is to charge always.The power supply of MIMO detector is by power supply pipe
Manage module control.Under non-standby state, power management module is charged always, but its letter for only carrying out power management scheme
Single control and switching, and the parameter configuration after powering on every time, logic is simple, own hardware power consumption is very low.
In the present embodiment, multi-antenna data is first input into data buffer, then is output to MIMO detector.According to data
The power management module of the signal of buffer output, MIMO detector executes power on operation process.When completing the frame of predetermined quantity
Between in length after all data MIMO detections, the power supply of MIMO detector is turned off at once, due to can be according to terminal chip
The actual throughput rates of MIMO detector, determine free time.Such as: the power supply of MIMO detector of switch in 1 frame, it is right
Electric power network influences very little, it is easy to accomplish.Different, power cutoff at the end of detection according to hardware circuit different operating frequency,
The power consumption during power supply is not wasted, unnecessary power consumption is sufficiently lowered.
3rd embodiment
Referring to Fig. 3, the device for reducing terminal chip MIMO detector power consumption is shown in figure, device 30 includes: that data are slow
Storage 301, power management module 303 and MIMO detector 305, wherein data buffer 301 receives multi-antenna data, and delays
It deposits and receives multi-antenna data；After completing the data buffer storage of frame time length of predetermined quantity, power management module 303 is opened
The power supply of MIMO detector 305, MIMO detector 305 carries out MIMO Data Detection, and exports detection data, in MIMO detector
305 complete in the frame time length of predetermined quantity after all data MIMO detections, and power management module 303 turns off MIMO detector
305 power supply.
Optionally, in embodiment, after the subframe time length of data cached a predetermined level is exceeded, data buffer
301 the first signals of output to power management module 303, power management module 303 opens MIMO detector 305 according to the first signal
Power supply；When the data cached frame time length for reaching predetermined quantity, data buffer 301 exports second signal to power supply pipe
Module 303 is managed, power management module 303 configures the running parameter of MIMO detector 305 according to second signal, and then MIMO is detected
Device 305 carries out MIMO Data Detection, and exports detection data.
Optionally, in embodiment, MIMO detector 305 is resetted according to second signal, then carries out initial chemical industry
Make, with the time configuration work parameter for being less than scheduled time numerical value.
Optionally, in embodiment, MIMO detector 305 completes all data MIMO in the frame time length of predetermined quantity
After detection, output third signal to power management module 303；Power management module 303 turns off MIMO detection according to third signal
The power supply of device 305.
For example, multi-antenna data is first input into data buffer, when it is data cached more than 9 subframe time length after,
It issues " be near completion 1 frame buffer signal "；When it is data cached reach 1 frame time length when, issue " complete 1 frame buffer signal ".
After power management module receives " be near completion 1 frame buffer signal ", the power supply of MIMO detector is opened.Power management module receives
After " completing 1 frame buffer signal ", MIMO detector is resetted first.Then initial work is carried out, is matched with the time less than 40ns
Set all working parameter of MIMO detector.After completing initialization, MIMO detector detection multi-antenna data simultaneously exports testing number
According to.Complete sending " signal is completed in detection " in this frame after all data MIMO detections.Power management module, which receives, " have been detected
At signal " after, close the power supply of MIMO detector.
In the present embodiment, in the standby state, all modules all close power supply, without energy consumption.In non-standby shape
Under state, the power management module of data buffer and MIMO detector is to charge always.The power supply of MIMO detector is by power supply pipe
Manage module control.Under non-standby state, power management module is charged always, but its letter for only carrying out power management scheme
Single control and switching, and the parameter configuration after powering on every time, logic is simple, own hardware power consumption is very low.
In the present embodiment, multi-antenna data is first input into data buffer, then is output to MIMO detector.According to data
The power management module of the signal of buffer output, MIMO detector executes power on operation process.When completing the frame of predetermined quantity
Between in length after all data MIMO detections, the power supply of MIMO detector is turned off at once, due to can be according to terminal chip
The actual throughput rates of MIMO detector, determine free time.The power supply of MIMO detector of switch in 1 frame, to power supply
Network influences very little, it is easy to accomplish.Different according to hardware circuit different operating frequency, power cutoff at the end of detection is not unrestrained
Take the power consumption during power supply, sufficiently lowers unnecessary power consumption.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment
A particular feature, structure, or characteristic is included at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction
" in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific features, knot
Structure or characteristic can combine in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be appreciated that magnitude of the sequence numbers of the above procedures are not meant to execute suitable
Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction
In several embodiments provided herein, it should be understood that disclosed method and apparatus, it can be by other
Mode realize.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
For a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine
Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase
Coupling, direct-coupling or communication connection between mutually can be through some interfaces, the INDIRECT COUPLING or communication of device or unit
Connection can be electrical property, mechanical or other forms.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that the independent physics of each unit includes, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes receiving/transmission method described in each embodiment of the present invention
Part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store
The medium of program code.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, several improvements and modifications can also be made under the premise of not departing from principle of the present invention, these improvements and modifications also exist
In protection scope of the present invention.
Claims (8)
1. a kind of method for reducing terminal chip MIMO detector power consumption, which is characterized in that the described method includes:
Multi-antenna data is first input into data buffer, then is output to multiple-input and multiple-output MIMO detector；
According to the signal that the data buffer exports, power management module executes the power on operation stream to the MIMO detector
Journey；
The MIMO detector is completed in the frame time length of predetermined quantity after all data MIMO detections, shutdown MIMO detector
Power supply；
The signal exported according to the data buffer, power management module execution power on behaviour to the MIMO detector
Make process, comprising:
After the subframe time length of data cached a predetermined level is exceeded, the data buffer exports the first signal to the electricity
Source control module, the power management module open the power supply of the MIMO detector according to first signal；
When the data cached frame time length for reaching predetermined quantity, the data buffer exports second signal to the power supply
Management module, the power management module configures the running parameter of the MIMO detector according to the second signal, described
MIMO detector carries out MIMO Data Detection, and exports detection data.
2. the method according to claim 1, wherein the power management module is configured according to the second signal
The running parameter of the MIMO detector, comprising:
The power management module resets the MIMO detector according to the second signal, and then the MIMO detector carries out
Initial work configures the running parameter of the MIMO detector with the time for being less than scheduled time numerical value.
3. according to the method described in claim 2, it is characterized in that, the scheduled time numerical value was 30~50 nanoseconds.
4. the method according to claim 1, wherein the frame time that the MIMO detector completes predetermined quantity is long
In degree after all data MIMO detections, the power supply of the MIMO detector is turned off, comprising:
MIMO detector is completed in the frame time length of the predetermined quantity after all data MIMO detections, and output third signal is extremely
The power management module；The power management module turns off the power supply of the MIMO detector according to the third signal.
5. the method according to claim 1, wherein the frame time length of the predetermined quantity is 1 frame.
6. a kind of device for reducing terminal chip MIMO detector power consumption, which is characterized in that described device includes: data buffer storage
Device, power management module and MIMO detector, wherein the data buffer receives multi-antenna data, and caches and receive institute
State multi-antenna data；After completing the data buffer storage of frame time length of predetermined quantity, described in the power management module unlatching
The power supply of MIMO detector, the MIMO detector carries out MIMO Data Detection, and exports detection data, detects in the MIMO
Device is completed in the frame time length of the predetermined quantity after all data MIMO detections, described in the power management module shutdown
The power supply of MIMO detector；
After the subframe time length of the data cached a predetermined level is exceeded of the data buffer, data buffer output the
One signal to the power management module, the power management module opens the MIMO detector according to first signal
Power supply；When the frame time length for reaching predetermined quantity when the data buffer is data cached, data buffer output the
Binary signal to the power management module, the power management module configures the MIMO detector according to the second signal
Running parameter, the MIMO detector carries out MIMO Data Detection, and exports detection data.
7. device according to claim 6, which is characterized in that the MIMO detector is answered according to the second signal
Position, then carries out initial work, with the time configuration work parameter for being less than scheduled time numerical value.
8. device according to claim 6, which is characterized in that when the MIMO detector completes the frame of the predetermined quantity
Between in length after all data MIMO detections, output third signal to the power management module；The power management module root
According to the third signal, the power supply of the MIMO detector is turned off.
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