CN106332242A - Method and apparatus for lowering power consumption of UE side in LTE network - Google Patents
Method and apparatus for lowering power consumption of UE side in LTE network Download PDFInfo
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- CN106332242A CN106332242A CN201510374277.5A CN201510374277A CN106332242A CN 106332242 A CN106332242 A CN 106332242A CN 201510374277 A CN201510374277 A CN 201510374277A CN 106332242 A CN106332242 A CN 106332242A
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- frame
- pdsch
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- power consumption
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Classifications
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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
-
- 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 present invention relates to a method and an apparatus for lowering power consumption of a UE side in an LTE network. In the method, when a network side does not perform physical downlink shared channel (PDSCH) downlink service data scheduling in a current subframe, it is determined, according to a decoding result of a physical downlink control channel (PDCCH) of the UE, that a radio frequency receiving operation and a PDSCH decoding processing operation of a physical layer are terminated, so that the power consumption of the UE side of in the LTE network is lowered.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of reduce the side of UE side power consumption under LTE network
Method and device.
Background technology
Under LTE (Long Term Evolution, Long Term Evolution) connected state, in prior art, no matter net
Whether network side row subframe in each of the lower carries out PDSCH (Physical Downlink Shared Channel, thing
Reason downlink sharied signal channel) downlink service data scheduling, UE (User Equipment, subscriber equipment)
Side row subframe in each of the lower is all received operation to guarantee completely to carry out downlink data reception.
As it is shown in figure 1, in prior art, no matter whether network side row subframe in each of the lower is carried out under PDSCH
Row service data scheduling, UE side carries out downlink data reception at 14 symbols of each subframe.
But, in most of actually used scene, all descending sub frames are not all adjusted by network side
Degree, each descending sub frame be received downlink data receive the impact that brings of mode of operation be power consumption relatively
Greatly.
Summary of the invention
The problem that the present invention solves is how to avoid each descending PDSCH channel subframes to be received behaviour
Make, to reduce UE side power consumption under LTE network.
For solving the problems referred to above, the embodiment of the present invention provides a kind of and reduces UE side power consumption under LTE network
Method, including:
According to present sub-frame, whether there is effective descending DCI, it is judged that whether network side enters at present sub-frame
The descending PDSCH service data scheduling of row；
When described network side does not carries out PDSCH downlink service data scheduling at present sub-frame, close current
The physical layer radio frequency reception operation of subframe own and the descending PDSCH decoding process behaviour of closedown present sub-frame
Make.
Optionally, whether described have effective descending DCI according to present sub-frame, it is judged that network side is being worked as
Whether front subframe carries out descending PDSCH service data scheduling includes:
If present sub-frame does not has effective descending DCI, then network side is not carried out under PDSCH in this subframe
Row service data scheduling；
If present sub-frame has effective descending DCI, then network side industry under this subframe carries out PDSCH
Business data dispatch.
Optionally, it is characterised in that the physical layer radio frequency reception operation of described closedown present sub-frame own is
The rf data closing PDSCH channel successive character receives operation.
Optionally, the descending PDSCH decoding process operation of described closedown present sub-frame includes: close physics
Layer PDSCH decoding operation and closedown physical layer process operation to reporting of MAC layer.
Optionally, the method for UE side power consumption under described reduction LTE network, it is characterised in that also wrap
Include:
Open the radio frequency reception operation of next subframe；
Open the descending PDSCH decoding process operation of next subframe.
Optionally, the radio frequency reception opening next subframe described in operates as opening next subframe PDSCH channel
The rf data of symbol receives operation.
Optionally, the descending PDSCH decoding process operation opening next subframe described in includes: open physics
Layer PDSCH decoding operates and opens physical layer and operate to the process that reports of MAC layer.
Optionally, described opening operation is to have reception operation and next subframe to have reception operation at present sub-frame
Scene in carry out.
The embodiment of the present invention additionally provides and a kind of reduces the device of UE side power consumption under LTE network, including:
Judging unit and closing unit；
Described judging unit is suitable to according to whether present sub-frame has effective descending DCI, it is judged that network side
Descending PDSCH service data scheduling whether is carried out at present sub-frame；
Described closing unit, is suitable to judge that described network side does not enters at present sub-frame according to described judging unit
During row PDSCH downlink service data scheduling, perform to close the physical layer radio frequency reception behaviour of present sub-frame own
Make and close the descending PDSCH decoding process operation of present sub-frame.
Optionally, whether described judging unit has effective descending DCI according to present sub-frame, it is judged that net
Network side in the PDSCH downlink service data scheduling situation of present sub-frame, including:
If present sub-frame does not has effective descending DCI, it is descending that network side does not carry out PDSCH in this subframe
Service data scheduling；
If present sub-frame has effective descending DCI, network side carries out PDSCH downlink business in this subframe
Data dispatch.
Optionally, described closing unit includes: radio frequency reception closing unit and descending PDSCH decoding process
Closing unit；
Described radio frequency reception closing unit, is suitable to close the physical layer radio frequency reception operation of present sub-frame own；
Described descending PDSCH decoding process closing unit, is suitable to close the descending PDSCH of present sub-frame
Decoding process operates.
Optionally, the physical layer radio frequency reception operation of described closedown present sub-frame own is for closing PDSCH letter
The rf data of road successive character receives operation；
Optionally, the descending PDSCH decoding process operation of described closedown present sub-frame includes: close physics
Layer PDSCH decoding operation and closedown physical layer process operation to reporting of MAC layer.
Optionally, the device of UE side power consumption under described reduction LTE network, also include opening unit, suitable
Operate in the radio frequency reception performing to open next subframe and open at the descending PDSCH decoding of next subframe
Reason operation.
Optionally, open unit described in include: radio frequency reception opens unit and descending PDSCH decoding process
Open unit；
Described radio frequency reception is opened unit and is suitable to open the rf data of next subframe PDSCH channel symbol
Receive operation；
Described descending PDSCH decoding process is opened unit and is suitable to open the descending PDSCH solution of next subframe
Code processes operation.
Optionally, the descending PDSCH decoding process operation opening next subframe described in includes: open physics
Layer PDSCH decoding operates and opens physical layer and operate to the process that reports of MAC layer.
Optionally, opening unit described in is to have reception operation and next subframe to have reception operation at present sub-frame
Scene in work.
Compared with prior art, the embodiment of the present invention provides the benefit that: by according to the descending PDCCH of UE
Channel decoding result, it is judged that when network side does not carries out PDSCH downlink service data scheduling at present sub-frame
Time, close the operation of physical layer radio frequency reception own and the operation of descending PDSCH decoding process, thus reduce
UE side power consumption under LTE network.
Accompanying drawing explanation
Fig. 1 is that the reception operation of a subframe correspondence symbol of a kind of PDSCH channel of the prior art is shown
It is intended to；
Fig. 2 is that a kind of in the embodiment of the present invention reduces the flow process of UE side power consumption method under LTE network and show
It is intended to；
Fig. 3 is the reception behaviour of a subframe correspondence symbol of a kind of PDSCH channel in the embodiment of the present invention
Make schematic diagram；
Fig. 4 is the reception scene schematic diagram of a kind of adjacent two subframes in the embodiment of the present invention；
Fig. 5 is the reception scene schematic diagram of a kind of adjacent two subframes in the embodiment of the present invention；
Fig. 6 is that a kind of in the embodiment of the present invention reduces the device of UE side power consumption method under LTE network and show
It is intended to.
Detailed description of the invention
At present, in the lte networks, UE side is received operation to guarantee to each descending sub frame
Completely carry out downlink data reception.
But, in most of actually used scene, all descending sub frames are not all adjusted by network side
Degree, the impact that the mode that each descending sub frame is received operating is brought is that power consumption is bigger.
For the problems referred to above, the embodiment of the present invention provides a kind of and reduces the method for UE side power consumption under LTE network.
Described method is according to UE descending PDCCH channel decoding result, it is judged that when network side does not enters at present sub-frame
During row PDSCH downlink service data scheduling, close the operation of physical layer radio frequency reception own and descending PDSCH
Decoding process operates, thus reduces UE side power consumption under LTE network.
Understandable, below in conjunction with the accompanying drawings for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
The specific embodiment of the present invention is described in detail.
Fig. 2 is that a kind of in the embodiment of the present invention reduces the flow process of UE side power consumption method under LTE network and show
It is intended to.
S101: according to present sub-frame whether have effective DCI (Downlink Control Information,
Downlink Control Information), it is judged that whether network side carries out descending PDSCH service data scheduling at present sub-frame.
In being embodied as, described DCI is Downlink Control Information, it comprises the descending money of current UE
The time-frequency location in source, when, after PDCCH channel decoding, UE finds side the DCI mated with self then to illustrate
Present sub-frame has effective DCI.
In being embodied as, whether described have effective DCI according to present sub-frame, it is judged that network side is being worked as
Whether front subframe carries out descending PDSCH service data scheduling may include that
If present sub-frame does not has effective descending DCI, then network side is not carried out under PDSCH in this subframe
Row service data scheduling；
If present sub-frame has effective descending DCI, then network side industry under this subframe carries out PDSCH
Business data dispatch.
In the lump with reference to Fig. 3, in embodiments of the present invention, can be at the symbol of the 7th of present sub-frame N
DCI testing result is had to export, it is thus achieved that the DCI of PDCCH channel decodes result, if finding present sub-frame
N has effective descending DCI, then network side carries out PDSCH downlink service data scheduling in this subframe N.
S102: network side, when present sub-frame does not carries out PDSCH downlink service data scheduling, is closed current
The physical layer radio frequency reception operation of subframe own and the descending PDSCH decoding process behaviour of closedown present sub-frame
Make.
In the lump with reference to Fig. 3, in a particular embodiment, the radio frequency of physical layer of described closedown present sub-frame own connects
Bring drill to an end and may be off the rf data reception operation of follow-up 8th to the 14th symbol of PDSCH channel；
The descending PDSCH decoding process operation of described closedown present sub-frame, may be off physical layer
PDSCH decoding operation and physical layer are to MAC (Media Access Control, medium access control) layer
Report process operation.
By S101, the embodiment of the present invention judges that network side does not carries out descending PDSCH business at present sub-frame
During data dispatch, then perform close the physical layer radio frequency reception operation of present sub-frame own described in 102 and work as
The descending PDSCH decoding process operation of front subframe, thus reduce the power consumption under LTE connected state.
S103: have reception operation and next subframe to perform to open when having the scene receiving operation at present sub-frame
Operation, otherwise terminates.
Will not carry out owing to receiving in TDD-LTE and sending, therefore there is present sub-frame has reception behaviour simultaneously
Make and next subframe has reception operation and present sub-frame to have reception operation and next subframe without receiving operation two kinds
Scene, according to the uplink/downlink frames proportioning of TDD, can predict next subframe N+1 of present sub-frame in advance
Whether there is reception operation.
And in FDD-LTE, carry out owing to receiving and sending, then present sub-frame and next subframe are all. simultaneously
There is reception operation.
Illustrate that a kind of present sub-frame N has reception operation and next subframe N+1 to have with reference to Fig. 4, Fig. 4 in the lump
Receive scene RX_RX of operation.
In being embodied as, reception and next subframe N+1 is had to have the scene of reception at present sub-frame N
Under RX_RX, described execution opening operation may include that the radio frequency reception operation opening next subframe N+1
Operate with the descending PDSCH decoding process opening next subframe N+1.
In being embodied as, described in open next subframe N+1 radio frequency reception operate for opening next subframe
Next subframe N+1PDSCH channel the 0th receives operation to the rf data of the 13rd symbol.
In being embodied as, described in open next subframe N+1 descending PDSCH decoding process operation can
To include: open physical layer PDSCH decoding operation and open physical layer to MAC layer report process behaviour
Make.
In being embodied as, described opening operation has reception and next subframe to have reception at present sub-frame
Scene RX_RX is carried out, owing to next subframe N+1 has reception, then permissible by this step S103
Radio frequency reception operation and the described descending PDSCH decoding process of opening next subframe in advance operate.
The embodiment of the present invention operates by opening the radio frequency reception of next subframe N+1 described in execution and opens down
The descending PDSCH decoding process operation of one subframe N+1, it is ensured that descending in RX_RX scene
The normal data traffic scheduling of PDSCH channel.
Reference Fig. 5, Fig. 5 is that a kind of present sub-frame N has reception operation and next subframe N+1 without connecing in the lump
Bring drill to an end make scene RX_NOP.In being embodied as, TDD-LTE is under RX_NOP scene, logical
Cross step S102 and have been switched off the operation of physical layer radio frequency reception own and descending PDSCH decoding process behaviour
Make, owing to next subframe N+1 is without receiving operation, then need not perform the described opening operation of step S103.
In being embodied as, TDD-LTE network, uplink/downlink frames proportioning 1, special subframe configuration 7,
Use 8820 instrument and under only subframe 0 has the test scene of descending scheduling, use the embodiment of the present invention
UE average power consumption in 30ms is 235.5104ma, and the UE of prior art is average in 30ms
Power consumption is 232.3460ma.Visible, use the embodiment of the present invention, UE side 30ms under above-mentioned test scene
In can save average power consumption: 235.5104-232.3460=3.1644ma.In being embodied as, described saving
Average power consumption difference under different test scenes.
Fig. 6 is that a kind of in the embodiment of the present invention reduces the device of UE side power consumption method under LTE network and show
It is intended to.
In a particular embodiment, under described reduction LTE network, the device 60 of UE side power consumption method can wrap
Include: judging unit 601 and closing unit 602；
Described judging unit 601 is suitable to according to whether present sub-frame has effective descending DCI, it is judged that net
Network side is in the PDSCH downlink service data scheduling situation of present sub-frame；
Described closing unit 602, is suitable to judge that described network side is at current son according to described judging unit 601
When frame does not carries out PDSCH downlink service data scheduling, perform close physical layer radio frequency reception own operation and
Close the operation of descending PDSCH decoding process.
In a particular embodiment, whether described judging unit 601 has the most descending according to present sub-frame
DCI, it is judged that network side in the PDSCH downlink service data scheduling situation of present sub-frame, including:
If present sub-frame does not has effective descending DCI, it is descending that network side does not carry out PDSCH in this subframe
Service data scheduling；
Present sub-frame has effective descending DCI, and network side carries out PDSCH downlink business number in this subframe
According to scheduling.
In a particular embodiment, described closing unit 602 includes: radio frequency reception closing unit 6021 and under
Row PDSCH decoding process closing unit 6022；
Described radio frequency reception closing unit 6021, is suitable to close the radio frequency reception of physical layer of present sub-frame own
Operation；
Described descending PDSCH decoding process closing unit 6022, is suitable to close the descending of present sub-frame
PDSCH decoding process operates.
In a particular embodiment, the physical layer radio frequency reception operation of described closedown present sub-frame own is for closing
The rf data of PDSCH channel successive character receives operation.
In a particular embodiment, the operation of described closedown present sub-frame descending PDSCH decoding process includes: close
Close the decoding operation of physical layer PDSCH and closedown physical layer to operate to the process that reports of MAC layer.
In a particular embodiment, under described reduction LTE network, the device 60 of UE side power consumption also includes opening
Unit 603；
Described open unit 603, be adapted for carrying out opening the radio frequency reception operation of next subframe and opening next son
The descending PDSCH decoding process operation of frame.
In a particular embodiment, open unit 603 described in include: radio frequency reception open unit 6031 and under
Row PDSCH decoding process opens unit 6032；
Described radio frequency reception is opened unit 6031 and is suitable to open the radio frequency of next subframe PDSCH channel symbol
Data reception operation；
Described descending PDSCH decoding process is opened unit and is suitable to open the descending PDSCH solution of next subframe
Code processes operation.
In a particular embodiment, the descending PDSCH decoding process operation opening next subframe described in includes:
Open physical layer PDSCH decoding operation and open physical layer to MAC layer report process operation.
In a particular embodiment, opening unit 603 described in is to have reception and next subframe to have at present sub-frame
The scene received works.
Although present disclosure is as above, but the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, all can make various changes or modifications, therefore the guarantor of the present invention
The scope of protecting should be as the criterion with claim limited range.
Claims (17)
1. one kind is reduced the method for UE side power consumption under LTE network, it is characterised in that including:
According to present sub-frame, whether there is effective descending DCI, it is judged that whether network side is carried out at present sub-frame
Descending PDSCH service data scheduling；
When described network side does not carries out PDSCH downlink service data scheduling at present sub-frame, close current
The physical layer radio frequency reception operation of subframe own and the descending PDSCH decoding process of closedown present sub-frame
Operation.
The method of UE side power consumption under reduction LTE network the most according to claim 1, it is characterised in that
Whether described have effective descending DCI according to present sub-frame, it is judged that at present sub-frame whether network side
Carry out descending PDSCH service data scheduling to include:
If present sub-frame does not has effective descending DCI, then network side is not carried out under PDSCH in this subframe
Row service data scheduling；
If present sub-frame has effective descending DCI, then network side industry under this subframe carries out PDSCH
Business data dispatch.
The method of UE side power consumption under reduction LTE network the most according to claim 1, it is characterised in that
The physical layer radio frequency reception operation of described closedown present sub-frame own is for closing the follow-up symbol of PDSCH channel
Number rf data receive operation.
The method of UE side power consumption under reduction LTE network the most according to claim 1, it is characterised in that
The descending PDSCH decoding process operation of described closedown present sub-frame includes: close physical layer PDSCH
Decoding operation and closedown physical layer operate to the process that reports of MAC layer.
The method of UE side power consumption under reduction LTE network the most according to claim 1, it is characterised in that
Also include:
Open the radio frequency reception operation of next subframe；
Open the descending PDSCH decoding process operation of next subframe.
The method of UE side power consumption under reduction LTE network the most according to claim 5, it is characterised in that
The described radio frequency reception opening next subframe operates as to open penetrating of next subframe PDSCH channel symbol
Frequently data reception operation.
The method of UE side power consumption under reduction LTE network the most according to claim 5, it is characterised in that
The described descending PDSCH decoding process operation opening next subframe includes: open physical layer PDSCH
Decoding operates and opens physical layer and operates to the process that reports of MAC layer.
The method of UE side power consumption under reduction LTE network the most according to claim 5, it is characterised in that
Described opening operation is to have reception operation and next subframe to have at present sub-frame to receive in the scene operated
Row.
9. one kind is reduced the device of UE side power consumption under LTE network, it is characterised in that including: judging unit and
Closing unit；
Described judging unit is suitable to according to whether present sub-frame has effective descending DCI, it is judged that network side exists
Whether present sub-frame carries out descending PDSCH service data scheduling；
Described closing unit, is suitable to judge that described network side is not carried out at present sub-frame according to described judging unit
During PDSCH downlink service data scheduling, perform to close the physical layer radio frequency reception behaviour of present sub-frame own
Make and the operation of descending PDSCH decoding process.
The device of UE side power consumption under reduction LTE network the most according to claim 9, it is characterised in that
Whether described judging unit has effective descending DCI according to present sub-frame, it is judged that network side is currently
The PDSCH downlink service data scheduling situation of subframe, including:
If present sub-frame does not has effective descending DCI, it is descending that network side does not carry out PDSCH in this subframe
Service data scheduling；
If present sub-frame has effective descending DCI, network side carries out PDSCH downlink business in this subframe
Data dispatch.
The device of UE side power consumption under 11. reduction LTE network according to claim 9, it is characterised in that
Described closing unit includes: radio frequency reception closing unit and descending PDSCH decoding process closing unit；
Described radio frequency reception closing unit, is suitable to close the physical layer radio frequency reception operation of present sub-frame own；
Described descending PDSCH decoding process closing unit, the descending PDSCH being suitable to close present sub-frame solves
Code processes operation.
The device of UE side power consumption under 12. reduction LTE network according to claim 11, it is characterised in that
The physical layer radio frequency reception operation of described closedown present sub-frame own is for closing the follow-up symbol of PDSCH channel
Number rf data receive operation.
The device of UE side power consumption under 13. reduction LTE network according to claim 11, it is characterised in that
The descending PDSCH decoding process operation of described closedown present sub-frame includes: close physical layer PDSCH
Decoding operation and closedown physical layer operate to the process that reports of MAC layer.
The device of UE side power consumption under 14. reduction LTE network according to claim 9, it is characterised in that
Also include opening unit, be adapted for carrying out opening the radio frequency reception operation of next subframe and opening next subframe
Descending PDSCH decoding process operation.
The device of UE side power consumption under 15. reduction LTE network according to claim 14, it is characterised in that
Described unit of opening includes: radio frequency reception opens unit and descending PDSCH decoding process opens unit；
Described radio frequency reception is opened unit and is suitable to open the rf data of next subframe PDSCH channel symbol and connects
Bring drill to an end work；
Described descending PDSCH decoding process is opened unit and is suitable to open the descending PDSCH decoding of next subframe
Process operation.
The device of UE side power consumption under 16. reduction LTE network according to claim 15, it is characterised in that
The described descending PDSCH decoding process operation opening next subframe includes: open physical layer PDSCH
Decoding operates and opens physical layer and operates to the process that reports of MAC layer.
The device of UE side power consumption under 17. reduction LTE network according to claim 15, it is characterised in that
Described unit of opening is to have reception operation and next subframe to have at present sub-frame to receive work in the scene operated
Make.
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| CN201510374277.5A CN106332242A (en) | 2015-06-30 | 2015-06-30 | Method and apparatus for lowering power consumption of UE side in LTE network |
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| CN111328130B (en) * | 2018-12-14 | 2022-04-01 | 大唐移动通信设备有限公司 | Signal receiving method, signal sending method, terminal and network side equipment |
| CN112954644A (en) * | 2019-12-11 | 2021-06-11 | 辰芯科技有限公司 | Wireless communication system based on power consumption saving and operation method thereof |
| CN112954644B (en) * | 2019-12-11 | 2023-03-14 | 辰芯科技有限公司 | Wireless communication system based on power consumption saving and operation method thereof |
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Application publication date: 20170111 |