CN106793050A - A kind of LTE switch-off powers ameliorative way and system - Google Patents
A kind of LTE switch-off powers ameliorative way and system Download PDFInfo
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- CN106793050A CN106793050A CN201710004082.0A CN201710004082A CN106793050A CN 106793050 A CN106793050 A CN 106793050A CN 201710004082 A CN201710004082 A CN 201710004082A CN 106793050 A CN106793050 A CN 106793050A
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- Prior art keywords
- event
- power amplifier
- powers
- lte
- switch
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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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/247—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter sent by another terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
Abstract
The invention discloses a kind of LTE switch-off powers ameliorative way and system, transmitting power control event is transferred to by the way that the power amplifier in power amplifier initialization event is opened into event, the power amplifier is opened event and is occurred in the transmitting power control event；So that switch-off power improves performance in standard claimed range, hardware cost is saved, brought great convenience.
Description
Technical field
The present invention relates to radio frequency arts, more particularly to a kind of LTE switch-off powers ameliorative way and system.
Background technology
Mobile terminal, you can with the computer equipment used in movement, its mobility is mainly reflected in mobile communication energy
Power and portability volume.Include that mobile phone, notebook, POS even include vehicle-mounted computer in a broad sense.Mobile terminal not only can be with
Call, video calling, take pictures, listen music, see video, play game, and can realize including that positioning, information processing, fingerprint are swept
Retouch, identity card scanning, bar code scan, RFID scannings, the abundant function such as IC-card scanning and alcohol content detection.Mobile terminal
Network signal include 2G, 3G, 4G or even 5G etc..LTE is Long Term Evolution, is English Long Term Evolution
Abbreviation.LTE is considered as technically 3.9G.But 4G is still generally referred to as, because under it has a data of 100Mbps
Loading capability (refers to cat3 downlink bandwidths), is 10 times or so of present 3G network speeds.It is also simultaneously crucial mistakes of the 3G to technology 4G evolution
Journey.
And the purpose of existing mobile terminal test LTE switch-off powers is to investigate tested mobile terminal hair in a static mode
Penetrate thresholding of the power less than specification definition.Too high switch-off power can improve system background noise, so as to reduce other movements eventually
The coverage at end.3GPP standards specify that the switch-off power under LTE each channel width will be less than -48.5dBm.If LTE
Close power to go wrong, existing solution is to add isolation sentence (ASM_OFF), mesh in LTE TX MIPI data
Be will be in PA（The power amplifier of radio frequency, is RF application generic term）The ambient noise of path is reduced before performing transmitting
Level, but this general method can not solve this problem, bring greatly inconvenience.
Thus prior art could be improved and improve.
The content of the invention
In view of above-mentioned the deficiencies in the prior art part, it is an object of the invention to provide a kind of LTE switch-off powers improvement side
Method and system, it is intended to solve the problems, such as that existing mobile terminal LTE switch-off powers are higher.
In order to achieve the above object, this invention takes following technical scheme：
A kind of LTE switch-off powers ameliorative way, wherein, including：
A, by power amplifier initialization event power amplifier open event be transferred to transmitting power control event, make institute
Power amplifier opening event is stated to occur in the transmitting power control event.
Described LTE switch-off power ameliorative ways, wherein, the step A is specifically included：
A11, find in power amplifier initialization event power amplifier and open the corresponding register value of event, by the work(
Rate amplifier opens the corresponding register value assignment of event in the corresponding register of transmitting power control event；
A12, change power amplifier open the corresponding register value of event, are at idle condition.
Described LTE switch-off power ameliorative ways, wherein, the power amplifier initialization event to transmitting power control
The timing intervals of event are more than or equal to very first time threshold value.
Described LTE switch-off power ameliorative ways, wherein, the very first time threshold value is 5 μ s.
Described LTE switch-off power ameliorative ways, wherein, open event when the power amplifier and occur in the transmission
When in power controlling events, LTE switch-off powers are less than or equal to ﹣ 63dBm.
A kind of LTE switch-off powers improve system, wherein, including：
Event shift module, transmission work(is transferred to for the power amplifier in power amplifier initialization event to be opened into event
Rate controls event, the power amplifier is opened event and occurs in the transmitting power control event.
Described LTE switch-off powers improve system, wherein, the event shift module includes：
First assignment unit, the corresponding deposit of event is opened for finding power amplifier in power amplifier initialization event
Device value, the corresponding register value assignment of event to the corresponding register of transmitting power control event is opened by the power amplifier
In；
Second assignment unit, the corresponding register value of event is opened for changing power amplifier, is at idle condition.
Described LTE switch-off powers improve system, wherein, the power amplifier initialization event to transmitting power control
The timing intervals of event are more than or equal to very first time threshold value.
Described LTE switch-off powers improve system, wherein, the very first time threshold value is 5 μ s.
Described LTE switch-off powers improve system, wherein, open event when the power amplifier and occur in the transmission
When in power controlling events, LTE switch-off powers are less than or equal to ﹣ 63dBm.
Compared to prior art, LTE switch-off powers ameliorative way and system that the present invention is provided, by by power amplifier
Power amplifier in initialization event opens event and is transferred to transmitting power control event, the power amplifier is opened thing
Part occurs in the transmitting power control event；So that switch-off power improves performance in standard claimed range, save
Hardware cost, brings great convenience.
Brief description of the drawings
The method flow diagram of the LTE switch-off power ameliorative ways that Fig. 1 is provided for the present invention.
Fig. 2 is LTE transmitting chain sequential configuration schematic diagrams.
The structured flowchart of the LTE switch-off powers improvement system that Fig. 3 is provided for the present invention.
Specific embodiment
The present invention provides a kind of LTE switch-off powers ameliorative way and system.To make the purpose of the present invention, technical scheme and effect
Fruit is clearer, clear and definite, and the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.It should be appreciated that this place
The specific embodiment of description is only used to explain the present invention, is not intended to limit the present invention.
The present invention provides a kind of LTE switch-off powers ameliorative way, refers to Fig. 1, the LTE switch-off powers ameliorative way,
Comprise the following steps：
S100, by power amplifier initialization event power amplifier open event be transferred to transmitting power control event,
Make the power amplifier open event to occur in the transmitting power control event.
Above-mentioned steps are described in detail with reference to specific embodiment.
In the step S100, the power amplifier in power amplifier initialization event is opened into event and is transferred to biography
In defeated power controlling events, so that the power amplifier is opened event and is occurred in the transmitting power control event, when
The power amplifier is opened event and is occurred when in the transmitting power control event, and LTE switch-off powers will in 3GPP standards
In the range of asking, so as to improve performance, hardware cost has been saved.Mobile terminal of the invention can for mobile phone, panel computer etc.,
It is exactly the terminal with LTE functions.
3GPP standards specify that the switch-off power under LTE each channel width will be less than -48.5dBm.And in practical application
In, by taking the MT6176 platforms of Lian Fake as an example, for MT6176 platforms, if LTE closes power gone wrong, traditional solution is done
Method is that isolation sentence (ASM_OFF) is added in LTE TX MIPI data, it is therefore an objective to be reduced before PA performs transmitting
The background noise level of path.But in MT6176 platforms, this general method can not solve this problem.Refer to
Fig. 2.Fig. 2 is LTE transmitting chain sequential configuration schematic diagrams, for MT6176 platforms, normal timing configuration
（Sequential is configured）There is fixed time interval between each event, as shown in Fig. 2 PA_ON is power amplifier initialization event,
ASM is switch module, and TPC is transmitting power control event, and CP is time slot, and TX Burst are transmitting chain pulse signal event,
And PA_OFF is then power amplifier close event,
PA_ON（Namely power amplifier initialization event）timing（Sequential）Need in TPC（Transmission Power
Control, that is, transmitting power control event）Before event and there is certain time interval, such as PA_ON is apart from TX
Burst（Transmitting chain pulse signal event）Time be 20 μ s, then TPC ultimate ranges TX Burst（Transmitting chain pulse is believed
Number event）Time can only be 15us, irregular behavior can otherwise occur, and (such as calibration problem and LTE physical layers are handled up
Amount problem etc.).
Principle of the invention is as follows：How TX timing is being ensured（Transmitting chain sequential）In the case that structure is constant,
How to optimize LTE and close power.PA enable in the MIPI drivings of acquiescence（Namely power amplifier opens event）Data
Occur in PA_ON events, controlled by 0x00 registers, found from Fig. 2, PA_ON is the time for occurring at first, meaning
It is also that there occurs in advance PA enable.It means that the Enable in OFF power (before) early in fig. 2
PA, this when may result in burst（Pulse）Background noise level can be very high before triggering.Based on this, the present invention is PA
Enable data are put into TPC, allow PA enable（Namely power amplifier opens event）With TPC（Transmitting power control
Event）Event occurs together, is found after test, and LTE closes power level and is greatly improved, and tests other RF indexes
Normally.
Preferably, in practical application, the step S100 is specifically included：
S111, find in power amplifier initialization event power amplifier and open the corresponding register value of event, will be described
Power amplifier opens the corresponding register value assignment of event in the corresponding register of transmitting power control event；
S112, change power amplifier open the corresponding register value of event, are at idle condition.
Specifically, MIPI is driven and is modified, open lte_custom_mipi.c files, by taking LTE B1 as an example,
In four events of LTE_B1_TX, 0 event correspond to the PA_ON in Fig. 2;1 event correspond to the PA_OFF in Fig. 2；2 events
Correspond to increased ASM_OFF isolation sentence；3 events correspond to ASM（Switch module）.In LTE working conditions, signal transmitting
Process is：Power amplifier PA outputs signals to duplexer, then by switch module（For example concretely being thrown out hilted broadsword more
Close）Antenna is transferred to be launched.
And in TX_DATA：PA_ON events correspond to 3 pen datas (0-2), PA enable just occur in the 1st pen data, be
Guarantee PA enable occur in TPC events, here（0x00,0x34）Be changed to (0x00,0x00), now PA according to
It is so closed mode, that is, changes the corresponding register value of power amplifier opening event, is at idle condition.
Find TPC events and the corresponding data of TPC；There was only an event in TPC, and this event includes 2 pen data (0-
1);This 2 pen data correspond to the value (DATA0 and DATA1) of different registers.2 groups of registers correspond to 0x00 and 0x01,
The value of 0x00 correspond to the now state of PA；The value of 0x01 correspond to PA biases（PA biases are that power amplifier is special in itself
Property value and linear characteristic value）；Power amplifier is namely opened into the corresponding register value assignment of event to transmitting power control
In the corresponding register of event.
With reference to Fig. 1 and Fig. 2, in PA_ON events, test obtains its and closes work(the generation of PA enable events in the prior art
Rate level is probably -47dBm or so, beyond 3GPP standard claimed ranges.And PA enable events occur in TPC events
In when, it closes power level and reaches -63dBm or so, and performance is obviously improved, and has very big surplus empty from standard limited value
Between.
Preferably, the power amplifier initialization event is more than or equal to the timing intervals of transmitting power control event
Very first time threshold value.That is, although PA enable data are transferred to TPC events from PA_ON events, but PA_ON things
Part remains at least very first time threshold value to the interval of TPC events, by first generation PA_ON events, occur afterwards from sequential
TPC events, interval time is more than very first time threshold value between the two.Preferably, the very first time threshold value is 5 μ s, that is,
Say that PA_ON events remain at least 5us to the interval of TPC events.
Preferably, when the power amplifier opens event to be occurred in the transmitting power control event, LTE shut-offs
Power is less than or equal to ﹣ 63dBm.
The LTE switch-off power ameliorative ways that the present invention is provided, it is not necessary to any modification is made in hardware path, just for drive
Corresponding modification is acted, hardware cost is saved；On the other hand, because traditional addition isolation sentence method may not necessarily be solved thoroughly
Certainly problem, and by the way of the present invention opens event generation in the transmitting power control event using power amplifier, so that
Have accumulated more rectification means, it is ensured that Project-developing progress.
Based on the LTE switch-off power ameliorative ways that above-described embodiment is provided, the present invention also provides a kind of LTE switch-off powers and changes
Kind system.Fig. 3 is referred to, the LTE switch-off powers improve system to be included：
Event shift module 10, transmission is transferred to for the power amplifier in power amplifier initialization event to be opened into event
Power controlling events, make the power amplifier open event and occur in the transmitting power control event.
Further, the event shift module 10 includes：
First assignment unit, the corresponding deposit of event is opened for finding power amplifier in power amplifier initialization event
Device value, the corresponding register value assignment of event to the corresponding register of transmitting power control event is opened by the power amplifier
In；
Second assignment unit, the corresponding register value of event is opened for changing power amplifier, is at idle condition.
Further, the power amplifier initialization event is more than or waits to the timing intervals of transmitting power control event
In very first time threshold value.
Further, the very first time threshold value is 5 μ s.
Further, when the power amplifier opens event to be occurred in the transmitting power control event, LTE is closed
Disconnected power is less than or equal to ﹣ 63dBm.
Because the LTE switch-off powers improve the concrete principle and detail technical features of system in above-mentioned LTE switch-off powers
Elaborated in ameliorative way embodiment, will not be repeated here.
The division of above-mentioned functions module is only used to for example, in actual applications, can as needed by above-mentioned functions
Distribution is completed by different functional modules, that is, be divided into different functional modules to complete all or part of foregoing description
Function.
One of ordinary skill in the art will appreciate that all or part of flow in above-described embodiment method, can be by
Computer（Or mobile terminal）Program is completed come the hardware for instructing correlation, described computer（Or mobile terminal）Program can be stored
In a computer（Or mobile terminal）In read/write memory medium, program is upon execution, it may include the embodiment of above-mentioned each method
Flow.Storage medium therein can be magnetic disc, CD, read-only memory（ROM）Or random access memory（RAM）
Deng.For example, during vocal print feature storehouse may be alternatively stored in the server interacted with terminal data.
In sum, the present invention is provided a kind of LTE switch-off powers ameliorative way and system, by by the beginning of power amplifier
Power amplifier in beginning event opens event and is transferred to transmitting power control event, the power amplifier is opened event
Occur in the transmitting power control event；So that switch-off power improves performance in standard claimed range, save hard
Part cost, brings great convenience.
It is understood that for those of ordinary skills, can be with technology according to the present invention scheme and its hair
Bright design is subject to equivalent or change, and all these changes or replacement should all belong to the guarantor of appended claims of the invention
Shield scope.
Claims (10)
1. a kind of LTE switch-off powers ameliorative way, it is characterised in that including：
A, by power amplifier initialization event power amplifier open event be transferred to transmitting power control event, make institute
Power amplifier opening event is stated to occur in the transmitting power control event.
2. LTE switch-off powers ameliorative way according to claim 1, it is characterised in that the step A is specifically included：
A11, find in power amplifier initialization event power amplifier and open the corresponding register value of event, by the work(
Rate amplifier opens the corresponding register value assignment of event in the corresponding register of transmitting power control event；
A12, change power amplifier open the corresponding register value of event, are at idle condition.
3. LTE switch-off powers ameliorative way according to claim 1, it is characterised in that the power amplifier initialization
Event is more than or equal to very first time threshold value to the timing intervals of transmitting power control event.
4. LTE switch-off powers ameliorative way according to claim 3, it is characterised in that the very first time threshold value is 5 μ
s。
5. LTE switch-off power ameliorative ways according to any one of claim 1 ~ 4, it is characterised in that when the power is put
Big device is opened event and is occurred when in the transmitting power control event, and LTE switch-off powers are less than or equal to ﹣ 63dBm.
6. a kind of LTE switch-off powers improve system, it is characterised in that including：
Event shift module, transmission work(is transferred to for the power amplifier in power amplifier initialization event to be opened into event
Rate controls event, the power amplifier is opened event and occurs in the transmitting power control event.
7. LTE switch-off powers according to claim 6 improve system, it is characterised in that the event shift module includes：
First assignment unit, the corresponding deposit of event is opened for finding power amplifier in power amplifier initialization event
Device value, the corresponding register value assignment of event to the corresponding register of transmitting power control event is opened by the power amplifier
In；
Second assignment unit, the corresponding register value of event is opened for changing power amplifier, is at idle condition.
8. LTE switch-off powers according to claim 6 improve system, it is characterised in that the power amplifier initialization
Event is more than or equal to very first time threshold value to the timing intervals of transmitting power control event.
9. LTE switch-off powers according to claim 8 improve system, it is characterised in that the very first time threshold value is 5 μ
s。
10. the LTE switch-off powers according to any one of claim 6 ~ 9 improve system, it is characterised in that when the power is put
Big device is opened event and is occurred when in the transmitting power control event, and LTE switch-off powers are less than or equal to ﹣ 63dBm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004082.0A CN106793050B (en) | 2017-01-04 | 2017-01-04 | LTE (Long term evolution) turn-off power improvement method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004082.0A CN106793050B (en) | 2017-01-04 | 2017-01-04 | LTE (Long term evolution) turn-off power improvement method and system |
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| Publication Number | Publication Date |
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| CN106793050A true CN106793050A (en) | 2017-05-31 |
| CN106793050B CN106793050B (en) | 2021-01-08 |
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| CN101562883A (en) * | 2008-04-14 | 2009-10-21 | Atmel德国有限公司 | Transmission circuit, transmission method and use |
| CN104735804A (en) * | 2009-04-30 | 2015-06-24 | 宏达国际电子股份有限公司 | Electronic device with Bluetooth module and wireless network module and control method thereof |
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| CN106793050B (en) | 2021-01-08 |
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