CN103491051B - Data emitting method and equipment - Google Patents
Data emitting method and equipment Download PDFInfo
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- CN103491051B CN103491051B CN201210195902.6A CN201210195902A CN103491051B CN 103491051 B CN103491051 B CN 103491051B CN 201210195902 A CN201210195902 A CN 201210195902A CN 103491051 B CN103491051 B CN 103491051B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
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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
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
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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
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
-
- 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
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a kind of data emitting method and equipment.Network side equipment is in the downstream direction and/or user equipment data in the upstream direction on sub-channel carry out orthogonal pulses amplitude modulation(PAM), data after being modulated, network side equipment sends descending silent instruction to adjacent cell simultaneously, notify the adjacent cell in the specified subchannel without data transfer, then network side equipment or user equipment launch data after the modulation in the subchannel using larger transmission power.Using the present invention, can lifting system signal to noise ratio.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of data emitting method and equipment.
Background technology
In current high-speed packet access (High Speed PacketAccess, abbreviation HSPA), Long Term Evolution (Long
Term Evolution, abbreviation LTE) etc. in GSM, only up to using 64 constellation points quadrature amplitude modulation
(Quadrature Amplitude Modulation, abbreviation QAM), i.e. 64-QAM.In these GSMs, it is impossible to
It is primarily due to be limited by following factor using higher order modulation (such as 256-QAM, 1024-QAM)：
1st, radio communication is easily influenceed by ambient noise, and because mobile communication uses Small Section Mode, inter-cell interference etc. is limited
The Signal to Interference plus Noise Ratio of wireless signal (Signal to Interference plus Noise Ratio, abbreviation SINR), therefore nothing
The SINR of line communication system is generally relatively low, but requirement of the high order modulation to SINR is higher.
2nd, the non-linear factor of transmitting set is easily caused the mistake of higher order modulation (256-QAM, 1024-QAM etc.) waveform
Very, so as to limit the application of higher order modulation.
3rd, wireless channel all exists in time-domain and frequency domain and significantly declined, if transmission data distributed when
Between or frequency or time/frequency source block granularity it is larger, then the average SINR of the subchannel influenceed by declining just it is larger, cause this
The SINR of subchannel is limited.
4th, the GSM such as HSPA, LTE uses adaptive coding modulation, i.e., according to link-quality dynamic select
It is adapted to current ink SINR modulation coding mode.Specifically, generally as receiving terminal to Radio Link used in transmitting terminal
The link quality parameter such as SINR (being referred to as CQI (Channel Quality Indicator, channel quality is indicated)) surveyed
Amount, and transmitting terminal is fed back to, then select the modulation coding mode for meeting the CQI conditions to be used for data transfer by transmitting terminal.If
The Transmission Time Interval (Transport Time Interval, abbreviation TTI) of radio open is longer, then the delay of CQI feedback compared with
Greatly, this will cause CQI of the actual link-quality compared with feedback to be varied widely, due to high-orders such as 256-QAM, 1024-QAM
Modulate that very high to SINR demand and transmission data block is very big, the cost retransmitted during SINR change errors of transmission is also higher, because
This is easier to be influenceed with channel variation by CQI feedback delay.
With technologies such as active antenna system (Adaptive Antenna System, abbreviation AAS), digital pre-distortions
Using, transmitting set it is non-linear caused by the high order modulation wave distortion such as 256-QAM, 1024-QAM the problem of progressively obtain
It is effective to solve.Wherein, AAS carries out digital beam shaping synthesis high power using multiple low-power array elements, because low-power is put
Big non-linear distortion is very small, therefore reduces the influence for the non-linear distortion directly brought using high power power amplifier.Exist in addition
In the 3.5G/4G systems such as LTE, the granularity that running time-frequency resource is divided is very small, and the basic subchannel in such as LTE is that time span is
0.5ms, band width is 180KHz time frequency unit, and the TTI in LTE is 1ms, and CQI feedback delay is also sufficiently small, remote small
In the coherence time of channel.Therefore, in the 3.5G/4G systems such as LTE, the high order modulation such as influence application 256-QAM, 1024-QAM
Principal element be the problem of SINR is relatively low.
The content of the invention
Technical problem to be solved of the embodiment of the present invention is, there is provided a kind of data emitting method and equipment, to improve
The SINR of wireless communication system.
On the one hand, the embodiments of the invention provide a kind of downlink data launching technique, including：
Downlink data on sub-channel carries out orthogonal pulses amplitude modulation(PAM), downlink data after being modulated；
Descending silent instruction is sent to adjacent cell, notifies the adjacent cell in the subchannel without lower line number
According to transmission；
Launch downlink data, first transmission power after the modulation using the first transmission power in the subchannel
More than the average emitted power of this cell.
The embodiment of the present invention additionally provides a kind of downlink data launching technique, including：
Downlink data on sub-channel carries out orthogonal pulses amplitude modulation(PAM), downlink data after being modulated；
The angle of declination of transmitting antenna is increased into 5-10 degree；
The transmitting antenna increased using angle of declination, is launched after the modulation in the subchannel using the 3rd transmission power
Downlink data, the 3rd transmission power is more than the average emitted power of this cell.
On the other hand, the embodiment of the present invention additionally provides a kind of upstream data launching technique, including：
The dispatch command of the network side equipment from this cell is received, the dispatch command includes subchannel information, and logical
Cross the network side equipment and send descending silent instruction to adjacent cell, notify the adjacent cell scheduling user's set not in institute
State and transmitting uplink data is carried out in subchannel；
Orthogonal pulses amplitude modulation(PAM), upstream data after being modulated are carried out to the upstream data in the subchannel；
Launch upstream data, the 4th transmission power after the modulation using the 4th transmission power in the subchannel
More than the average emitted power of user equipment.
On the other hand, the embodiment of the present invention additionally provides a kind of network side equipment, including：
Modulation module, the downlink data on sub-channel carries out orthogonal pulses amplitude modulation(PAM), descending after being modulated
Data；
Sending module, for sending descending silent instruction to adjacent cell, notifies the adjacent cell in the subchannel
On without downlink data transmission；And for launching descending after the modulation using the first transmission power in the subchannel
Data, first transmission power is more than the average emitted power of this cell.
The embodiment of the present invention additionally provides a kind of network side equipment, including：
Modulation module, the downlink data on sub-channel carries out orthogonal pulses amplitude modulation(PAM), descending after being modulated
Data；
Antenna adjustments module, for the angle of declination of transmitting antenna to be increased into 5-10 degree；
Sending module, for the transmitting antenna increased using angle of declination, uses the 3rd transmission power in the subchannel
Launch downlink data after the modulation, the 3rd transmission power is more than the average emitted power of this cell.
On the other hand, the embodiment of the present invention additionally provides a kind of user equipment, including：
Receiving module, the dispatch command for receiving the network side equipment from this cell, the dispatch command includes son
Channel information, and descending silent instruction is sent to adjacent cell by the network side equipment, notify the adjacent cell to dispatch
User equipment does not carry out transmitting uplink data in the subchannel；
Modulation module, for carrying out orthogonal pulses amplitude modulation(PAM) to the upstream data in the subchannel, is obtained after modulation
Upstream data；
Transmitter module, for launching upstream data, institute after the modulation using the 4th transmission power in the subchannel
State the average emitted power that the 4th transmission power is more than user equipment.
Implement the embodiment of the present invention, have the advantages that：By increasing the transmission power in subchannel, notify simultaneously
Adjacent cell in above-mentioned subchannel without data transfer, or simultaneously increase transmitting antenna angle of declination, can be effectively
Reduce inter-cell interference, improve the signal to noise ratio SINR of wireless communication system.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the first embodiment flow chart for the downlink data launching technique that the present invention is provided；
Fig. 2 is the schematic diagram that certain cell increases transmission power in special time period；
Fig. 3 is the second embodiment flow chart for the downlink data launching technique that the present invention is provided；
Fig. 4 is the 3rd embodiment flow chart for the downlink data launching technique that the present invention is provided；
Fig. 5 is the schematic diagram for the angle of declination that certain cell increases transmitting antenna during high power pulse；
Fig. 6 is the first embodiment structural representation for the network side equipment that the present invention is provided；
Fig. 7 is the second embodiment structural representation for the network side equipment that the present invention is provided；
Fig. 8 is the 3rd embodiment structural representation for the network side equipment that the present invention is provided；
Fig. 9 is the first embodiment flow chart for the upstream data launching technique that the present invention is provided；
Figure 10 is the first embodiment structural representation for the user equipment that the present invention is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is referred to, is the first embodiment flow chart for the downlink data launching technique that the present invention is provided, including：
Downlink data on S100, sub-channel carries out orthogonal pulses amplitude modulation(PAM), downlink data after being modulated.When adopting
When launching the downlink data with Time division duplex, subchannel is the period, i.e. step S100 includes：To specifying in the period
Downlink data carry out orthogonal pulses amplitude modulation(PAM).When launching the downlink data using frequency division duplex technology, subchannel is
Time/frequency source block, i.e. step S100 includes：To specifying the downlink data in time/frequency source block to carry out orthogonal pulses amplitude modulation(PAM).Son
Channel can be fixedly installed or network side equipment dynamically distributes.
S101, to adjacent cell send it is descending it is silent instruct, notify the adjacent cell in the subchannel without
Downlink data transmission.Silence can be sent by high-level signaling to adjacent cell to instruct, wherein silent instruction is believed comprising subchannel
Breath.By sending silent instruction to adjacent cell, can making adjacent cell, (period for example specified is interior or refers on sub-channels
In fixed time/frequency source block) be in silent status, i.e., without using the subchannel (period for for example specifying or it is specified when frequency money
Source block) carry out downlink data transmission.
S102, in the subchannel using the first transmission power launch downlink data after the modulation, first hair
Penetrate the average emitted power that power is more than this cell.Specifically, when dividing duplex technology when employed, step S102 includes：Referring to
The first transmission power of interior use of fixing time launches downlink data after the modulation.When using frequency division duplex technology, step S102
Including：Launch downlink data after the modulation using the first transmission power in specified time/frequency source block.Wherein, the first transmitting work(
Rate determines according to the ability of transmitting terminal, typically much deeper than the average emitted power of transmitting terminal, and such as the first transmission power can be with
It is ten times of average emitted power.
Downlink data launching technique provided in an embodiment of the present invention, by increasing the transmission power in subchannel, leads to simultaneously
Know adjacent cell in above-mentioned subchannel without data transfer, to transmitting downlink data using the subchannel in this cell
User, the receiving power of useful signal increases and the interference reduction from adjacent cell, therefore can effectively reduce minizone
Interference, obtains higher SINR.
In the step s 100, existing low order QAM, such as 16-QAM, 64- can be carried out with the downlink data on sub-channel
QAM etc., so can only improve the SINR of communication system.But, the SINR of current communication system be just enough to support 16-QAM,
The low order such as 64-QAM QAM, it is not necessary that SINR is increased by the scheme of the invention provided.Only when needing to enter downlink data
During row high-order QAM (such as 256-QAM, 1024-QAM), just it is necessary the scheme provided using the present invention to increase SINR.
That is, in actual applications, the QAM carried out in step S100 to the downlink data in some subchannels is high-order QAM, wherein
High-order QAM includes the QAM that constellation point is more than or equal to 256, such as 256-QAM, 1024-QAM.Should in wireless cellular system
With high order modulations such as 256-QAM, 1024-QAM, communication efficiency, lifting system capacity can be improved.
In time division duplex (Time Division Duplexing, abbreviation TDD) system, network side equipment is specified
The period period of dynamically distributes (for example pre-set by network side equipment or) increases transmission power and (launched using first
Power).As shown in Fig. 2 being the schematic diagram that certain cell increases transmission power in special time period.The average emitted work(of the cell
Rate is P1, but within some periods can by transmitting power promotion to higher level, correspond to respectively power be P21, P22,
P23.Specifically, the portfolio of the different districts in a region is possible and unbalanced, and the portfolio of each cell of different periods has
Height has low, and sometime, the customer volume in larger peak value, such as cell coverage area occurs in the portfolio of some cell
And/or larger growth occurs in the portfolio of user, and the traffic needs of the adjacent cell customer volume of the cell and/or user are simultaneously
Less, the cell is at this moment needed to provide larger peaking capacity to alleviate the traffic congestion situation of the cell.Therefore, can answer
With the above embodiment of the present invention, i.e., using the transmitting power promotion mode shown in Fig. 2, and transmitting power promotion be P21,
P22, P23 corresponding period allow the cell neighbor cell to be in silent status, i.e., user is dispatched within these periods and is not entered
Row data transfer.This method can cause the transmission power increase that whole cell is total in special time period, so as to provide higher
SINR.But, this method can increase the burden of transmitting terminal, and the requirement to RF power amplification is higher, and Project Realization cost is higher.
In FDD (Frequency Division Duplexing, abbreviation FDD) system, network side equipment is referring to
Fixed time/frequency source block (for example by network side equipment pre-set or dynamically distributes time/frequency source block) on increase transmission power
(i.e. using the first transmission power), keep average emitted power in other time/frequency source blocks, will also result in whole cell total
Transmission power increase, and then increase the burden of transmitting terminal., can be in other time-frequencies in FDD system in order to solve whole problem
Less transmission power (i.e. the second transmission power) is distributed on resource block, so that the transmission power for keeping cell total is constant or only
Increase more by a small margin, so requirement to transmitting terminal RF power amplification is relatively low, it is easier to Project Realization.The embodiment will refer to Fig. 2
It is described in detail.
Fig. 3 is referred to, is the second embodiment flow chart for the downlink data launching technique that the present invention is provided, including：
S300, to specify time/frequency source block on downlink data carry out high-order orthogonal pulse amplitude modulation, obtain high contrast
Downlink data after system, low order orthogonal pulses amplitude modulation(PAM) is carried out to the downlink data in other time/frequency source blocks, obtains low order tune
Downlink data after system.Wherein, low order orthogonal pulses amplitude modulation(PAM) includes the orthogonal pulses amplitude tune that constellation point is less than or equal to 64
System, such as 16-QAM and 64-QAM.
S301, to adjacent cell send it is descending it is silent instruct, notify the adjacent cell in the specified time/frequency source block
On without downlink data transmission.
S302, in the specified time/frequency source block using the first transmission power launch lower line number after the high order modulation
According to first transmission power is more than the average emitted power of this cell, and the second hair is used in other time/frequency source blocks
Downlink data after low-order-modulated described in power emission is penetrated, second transmission power is no more than the average emitted power of this cell.
Preferably, in the embodiment shown in Fig. 1 and 3, the present invention can also include：When using the in the subchannel
When one transmission power launches downlink data after the modulation, the angle of declination of transmitting antenna is increased into 5-10 degree.By increasing transmitting
The angle of declination of antenna, can reduce the interference that the first transmission power is caused to adjacent cell as far as possible.
It should be noted that in the embodiment above, although increasing transmission power on special time or specific time frequency block
The signal of the cell within the period or time frequency block can be caused to travel to adjacent cell, but be due to adjacent cell in this time
Silent status is in section or time frequency block, i.e., without using the period or time/frequency source block, therefore adjacent cell will not be led to
Letter produces influence.Meanwhile, cell-breathing techniques also can dynamically increase transmission power in the prior art, but in cell-breathing techniques
The purpose for increasing transmission power is to lift the covering of the cell, i.e., with the increase of the transmission power cell coverage area also simultaneously
Expand；And in the present invention, the coverage of the cell does not change, i.e., still only it is user's clothes in the cell coverage area
Business, although due to the transmission power increase in the special time or time frequency block, causing the user of the cell neighbor cell at this
The transmission signal of the cell can be received in time or time frequency block, but these users do not set up communication link with the cell.
Therefore it is entirely different using the purpose and prior art of increase transmission power in the present invention.
Fig. 4 is referred to, is the 3rd embodiment flow chart of downlink data launching technique provided in an embodiment of the present invention, is wrapped
Include：
Downlink data on S400, sub-channel carries out orthogonal pulses amplitude modulation(PAM), downlink data after being modulated.When adopting
When launching the downlink data with Time division duplex, subchannel is the period, i.e. step S400 includes：To specifying in the period
Downlink data carry out orthogonal pulses amplitude modulation(PAM).When launching the downlink data using frequency division duplex technology, subchannel is
Time/frequency source block, i.e. step S400 includes：To specifying the downlink data in time/frequency source block to carry out orthogonal pulses amplitude modulation(PAM).Son
Channel can be fixedly installed or network side equipment dynamically distributes.
S401, the angle of declination increase 5-10 degree by transmitting antenna.Wherein, the angle of declination of transmitting antenna refer to transmitting antenna with
Angle between horizontal line.Specifically, as shown in figure 5, according to parameters such as antenna configuration, cell configurations, day is launched when will be normal
The angle of declination P1 of line is increased to transmitting antenna angle of declination P2 during high power transmission, and usual amplification is 5-10 degree, sends out high power
The angle of declination of transmitting antenna reaches 10-20 degree when penetrating.For example, it is possible to use AAS (Adaptive Antenna
System, abbreviation AAS) adjust the angle of declination of transmitting antenna.
S402, the transmitting antenna increased using angle of declination, it is described using the transmitting of the 3rd transmission power in the subchannel
Downlink data after modulation, the 3rd transmission power is more than the average emitted power of this cell.Specifically, duplex is divided when employed
During technology, step S402 includes：The transmitting antenna increased using angle of declination, is at the appointed time sent out in section using the 3rd transmission power
Penetrate downlink data after the modulation.When using frequency division duplex technology, step S402 includes：The transmitting day increased using angle of declination
Line, downlink data after the modulation is launched in specified time/frequency source block using the 3rd transmission power.Wherein, the 3rd transmission power
Determined according to the ability of transmitting terminal, typically much deeper than the average emitted power of transmitting terminal, such as larger transmission power can be
Ten times of average emitted power.
Downlink data launching technique provided in an embodiment of the present invention, by increasing the transmission power in subchannel, increases simultaneously
The angle of declination of big transmitting antenna, keeps original cell structure constant, and will not cause strong jamming to adjacent cell, to this cell
Interior (especially center of housing estate) transmits using the subchannel user of downlink data, the receiving power increase of useful signal, because
This can effectively reduce inter-cell interference, obtain higher SINR.
In step S400, existing low order QAM, such as 16-QAM, 64- can be carried out with the downlink data on sub-channel
QAM etc., so can only improve the SINR of communication system.But, the SINR of current communication system be just enough to support 16-QAM,
The low order such as 64-QAM QAM, it is not necessary that SINR is increased by the scheme of the invention provided.Only when needing to enter downlink data
During row high-order QAM (such as 256-QAM, 1024-QAM), just it is necessary the scheme provided using the present invention to increase SINR.
That is, in actual applications, the QAM carried out in step S400 to the downlink data in some subchannels specified is high-order
QAM, wherein high-order QAM include the QAM that constellation point is more than or equal to 256, such as 256-QAM, 1024-QAM.In radio honeycomb
Using high order modulations such as 256-QAM, 1024-QAM in system, communication efficiency, lifting system capacity can be improved.
In a tdd system, at the appointed time section increases transmission power (i.e. using the 3rd transmission power) to network side equipment, and
The angle of declination of increase transmitting antenna in the period is specified at this using AAS, section recovers normal angle of declination at other times, so
It can avoid causing strong jamming to adjacent cell in high emission power.
In FDD system, network side equipment increases transmission power on time/frequency source block is specified and (launches work(using the 3rd
Rate), average emitted power or reduction transmission power are kept in other time/frequency source blocks, while increasing having a down dip for transmitting antenna
Angle.In actually implementing, due to the angle of declination of transmitting antenna can only be increased in some period now, therefore it can not specify
Individually implement in time/frequency source block, but the transmitting antenna of increase angle of declination must be used come under launching on all running time-frequency resources
Row data, may so be impacted to data receiver of the Cell Edge User in other time/frequency source blocks, therefore this
Embodiment is of little use in FDD system.
Fig. 6 is referred to, is the structural representation for the network side equipment 600 that the present invention is provided, network side equipment 600 includes：
Modulation module 610, downlink data on sub-channel carries out orthogonal pulses amplitude modulation(PAM), after being modulated under
Row data.When dividing the duplex technology transmitting downlink data when employed, subchannel is the period, i.e., descending QAM modules 610 are used
In to specifying the downlink data in the time to carry out orthogonal pulses amplitude modulation(PAM).When using the frequency division duplex technology transmitting lower line number
According to when, subchannel is time/frequency source block, i.e., descending QAM modules 610 be used for specify time/frequency source block in downlink data carry out
Orthogonal pulses amplitude modulation(PAM).Subchannel can be fixedly installed or network side equipment dynamically distributes.
Sending module 620, for sending descending silent instruction to adjacent cell, notifies the adjacent cell in the sub- letter
Without downlink data transmission on road；And for being launched in the subchannel using the first transmission power after the modulation under
Row data, first transmission power is more than the average emitted power of this cell.Sending module 620 can by high-level signaling to
Adjacent cell sends silent instruction, wherein silent instruction includes subchannel information., can by sending silent instruction to adjacent cell
So that adjacent cell (is such as specified in the period or in specified time/frequency source block) on sub-channels is in silent status, i.e., do not make
Downlink data transmission is carried out with the subchannel (such as specifying period or specified time/frequency source block).Specifically, divide when employed
During duplex technology, sending module 620 is used at the appointed time section launch lower line number after the modulation using the first transmission power
According to.When using frequency division duplex technology, sending module 620 is used to specify in time/frequency source block using the transmitting of the first transmission power
Downlink data after the modulation.Wherein, the first transmission power is determined according to the ability of transmitting terminal, typically much deeper than transmitting terminal
Average emitted power, such as the first transmission power can be ten times of average emitted power.
Network side equipment provided in an embodiment of the present invention, by increasing the transmission power in subchannel, while notifying neighbouring
Cell in above-mentioned subchannel without data transfer, the user to transmitting downlink data in this cell using the subchannel,
The receiving power increase of useful signal and the interference reduction from adjacent cell, therefore can effectively reduce inter-cell interference,
Obtain higher SINR.
Fig. 7 is referred to, is the structural representation for the network side equipment 700 that the present invention is provided, network side equipment 700 includes：
Modulation module 710, for carrying out high-order orthogonal pulse amplitude modulation to the downlink data in specified time/frequency source block,
Downlink data after high order modulation is obtained, low order orthogonal pulses amplitude modulation(PAM) is carried out to the downlink data in other time/frequency source blocks,
Obtain downlink data after low-order-modulated.Wherein, low order orthogonal pulses amplitude modulation(PAM) is orthogonal less than or equal to 64 including constellation point
Pulse amplitude modulation, such as 16-QAM and 64-QAM.
Sending module 720, for sending descending silent instruction to adjacent cell, notifies the adjacent cell to be specified described
Without downlink data transmission in time/frequency source block；And for using the first transmission power in the specified time/frequency source block
Launch downlink data after the high order modulation, first transmission power is more than the average emitted power of this cell, it is described its
Launch downlink data after the low-order-modulated using the second transmission power in its time/frequency source block, second transmission power does not surpass
Cross the average emitted power of this cell.
Preferably, in the embodiment shown in Fig. 6 and 7, network side equipment can also include：Antenna adjustments module, is used for
When the sending module 620 or 720 launches downlink data after the modulation in the subchannel using the first transmission power,
The angle of declination of transmitting antenna is increased into 5-10 degree.By increasing the angle of declination of transmitting antenna, larger transmitting work(can be reduced as far as possible
The interference that rate is caused to adjacent cell.
Fig. 8 is referred to, is the structural representation of network side equipment 800 provided in an embodiment of the present invention, network side equipment 800
Including：
Modulation module 810, downlink data on sub-channel carries out orthogonal pulses amplitude modulation(PAM), after being modulated under
Row data.When dividing the duplex technology transmitting downlink data when employed, subchannel is the period, that is, modulating 810 is used for referring to
The downlink data fixed time in section carries out orthogonal pulses amplitude modulation(PAM).When using the frequency division duplex technology transmitting downlink data
When, subchannel is time/frequency source block, i.e., modulation module 810 is used for specifying the downlink data in time/frequency source block to carry out orthogonal arteries and veins
Rush amplitude modulation(PAM).Subchannel can be fixedly installed or network side equipment dynamically distributes.
Antenna adjustments module 820, for the angle of declination of transmitting antenna to be increased into 5-10 degree.Wherein, transmitting antenna has a down dip
Angle refers to the angle between transmitting antenna and horizontal line.Specifically, as shown in figure 5, antenna adjustments module 820 is matched somebody with somebody according to antenna
Put, the parameter such as cell configuration, the transmitting antenna when angle of declination P1 of transmitting antenna is increased to high power transmission when will be normal has a down dip
Angle P2, usual amplification is 5-10 degree, the angle of declination of transmitting antenna during high power transmission is reached 10-20 degree.For example, downlink
Antenna adjustments module 820 can adjust the angle of declination of transmitting antenna using AAS.
Sending module 830, for the transmitting antenna increased using angle of declination, uses the 3rd transmitting work(in the subchannel
Rate launches downlink data after the modulation, and the 3rd transmission power is more than the average emitted power of this cell.Specifically, when adopting
When using Time division duplex, sending module 830 is used for the transmitting antenna increased using angle of declination, and the is at the appointed time used in section
Three transmission powers launch downlink data after the modulation.When using frequency division duplex technology, sending module 830, which is used to use, to have a down dip
The transmitting antenna of angle increase, downlink data after the modulation is launched in specified time/frequency source block using the 3rd transmission power.Its
In, the 3rd transmission power is determined according to the ability of transmitting terminal, typically much deeper than the average emitted power of transmitting terminal, the such as the 3rd
Transmission power can be ten times of average emitted power.
Network side equipment provided in an embodiment of the present invention, by increasing the transmission power in subchannel, while increasing transmitting
The angle of declination of antenna, keeps original cell structure constant, and will not cause strong jamming to adjacent cell, to (outstanding in this cell
Its center of housing estate) transmit the user of downlink data using the subchannel, the receiving power increase of useful signal, therefore can be with
Effectively reduce inter-cell interference, obtain higher SINR.
What above example was described is all the downlink data launching technique of network side equipment and its execution, in the downstream direction
When performing above method, it can still carry out data transmission in the upstream direction by mode of the prior art.In addition, can be with
By downlink data launching technique application described above in the upstream direction, as the user equipment scheduled in cell
(User Equipment, abbreviation UE) is performed.
Fig. 9 is referred to, is the first embodiment flow chart for the upstream data launching technique that the present invention is provided, including：
S900, the dispatch command for receiving the network side equipment from this cell, the dispatch command include subchannel information,
And descending silent instruction is sent to adjacent cell by the network side equipment, notify the adjacent cell scheduling user's set not
Transmitting uplink data is carried out in the subchannel.The network side equipment can be quiet to adjacent cell transmission by high-level signaling
Silent instruction, wherein silent instruction includes subchannel information.By sending silent instruction to adjacent cell, it can make in adjacent cell
Scheduled UE (is for example specified in the period or in specified time/frequency source block) be in silent status on sub-channels, i.e., without using
The subchannel (for example specifying period or specified time/frequency source block) carries out transmitting uplink data.
S901, in the subchannel upstream data carry out orthogonal pulses amplitude modulation(PAM), upstream data after being modulated.
When dividing the duplex technology transmitting upstream data when employed, subchannel is the period, i.e. step S901 includes：To specifying the time
Interior upstream data carries out orthogonal pulses amplitude modulation(PAM).When launching the upstream data using frequency division duplex technology, subchannel
It is time/frequency source block, i.e. step S901 includes：To specifying the upstream data in time/frequency source block to carry out orthogonal pulses amplitude modulation(PAM).
Subchannel can be fixedly installed or network side equipment dynamically distributes.
S902, in the subchannel using the 4th transmission power launch upstream data after the modulation, the 4th hair
Penetrate the average emitted power that power is more than user equipment.Specifically, when dividing duplex technology when employed, step S902 includes：
Specify in the period using upstream data after the 4th transmission power transmitting modulation.When using frequency division duplex technology, step
S902 includes：Launch upstream data after the modulation using the 4th transmission power in specified time/frequency source block.Wherein, the 4th hair
Penetrate power to be determined according to the ability of transmitting terminal, typically much deeper than the average emitted power of transmitting terminal, such as the 4th transmission power
Can be ten times of average emitted power.
Upstream data launching technique provided in an embodiment of the present invention, by increasing the transmission power in subchannel, leads to simultaneously
Crossing network side equipment notifies adjacent cell scheduling UE not carry out data transmission in above-mentioned subchannel, and the network side of this cell is set
Standby, the receiving power of useful signal increases and the interference reduction from adjacent cell, therefore it is dry effectively to reduce minizone
Disturb, obtain higher SINR.
In step S901, existing low order QAM, such as 16-QAM, 64- can be carried out with the upstream data on sub-channel
QAM etc., so can only improve the SINR of communication system.But, the SINR of current communication system be just enough to support 16-QAM,
The low order such as 64-QAM QAM, it is not necessary that SINR is increased by the scheme of the invention provided.Only when needing to enter upstream data
During row high-order QAM (such as 256-QAM, 1024-QAM), just it is necessary the scheme provided using the present invention to increase SINR.
That is, in actual applications, the QAM that the upstream data in step S901 on sub-channel is carried out is high-order QAM, wherein high-order
QAM includes the QAM that constellation point is more than or equal to 256, such as 256-QAM, 1024-QAM.Applied in wireless cellular system
The high order modulations such as 256-QAM, 1024-QAM, can improve communication efficiency, lifting system capacity.
Certainly, it will be understood by those skilled in the art that network side equipment is dispatching a certain UE or some UE in some sons specified
While carrying out high order modulation to upstream data on channel, other UE can also be dispatched upstream data is entered in other subchannels
Row low-order-modulated, the UE for carrying out low-order-modulated, its transmission power is constant or is decreased slightly as.
Figure 10 is referred to, is the structural representation for the user equipment 1000 that the present invention is provided, user equipment 1000 includes：
Receiving module 1010, the dispatch command for receiving the network side equipment from this cell, the dispatch command bag
Enclosed tool channel information, and descending silent instruction is sent to adjacent cell by the network side equipment, notify the adjacent cell
Scheduling user's set does not carry out transmitting uplink data in the subchannel.The network side equipment can by high-level signaling to
Adjacent cell sends silent instruction, wherein silent instruction includes subchannel information., can by sending silent instruction to adjacent cell
So that the UE being scheduled in adjacent cell (is such as specified in the period or in specified time/frequency source block) in quiet on sub-channels
Silent state, i.e., carry out transmitting uplink data without using the subchannel (such as specifying period or specified time/frequency source block).
Modulation module 1020, for carrying out orthogonal pulses amplitude modulation(PAM) to the upstream data in the subchannel, is adjusted
Upstream data after system.When dividing the duplex technology transmitting upstream data when employed, subchannel is the period, i.e. modulation module
1020 are used for specifying the upstream data in the period to carry out orthogonal pulses amplitude modulation(PAM).When using frequency division duplex technology transmitting institute
When stating upstream data, subchannel is time/frequency source block, i.e., modulation module 1020 is used for specifying the upper line number in time/frequency source block
According to progress orthogonal pulses amplitude modulation(PAM).Subchannel can be fixedly installed or network side equipment dynamically distributes.
Transmitter module 1030, for launching line number on after the modulation using the 4th transmission power in the subchannel
According to the 4th transmission power is more than the average emitted power of user equipment.Specifically, when dividing duplex technology when employed, hair
Penetrating module 1030 is used for：At the appointed time launch upstream data after the modulation using the 4th transmission power in section.When using frequency
When dividing duplex technology, transmitter module 1030 is used for：Specifying in time/frequency source block using the 4th transmission power transmitting modulation
Upstream data afterwards.Wherein, the 4th transmission power is determined according to the ability of transmitting terminal, typically much deeper than the average emitted of transmitting terminal
Power, such as the 4th transmission power can be ten times of average emitted power.
User equipment provided in an embodiment of the present invention, by increasing the transmission power in subchannel, while passing through network side
Equipment notifies adjacent cell scheduling UE not carry out data transmission on sub-channels, and network side equipment corresponding to this cell is useful
The receiving power of signal increases and the interference reduction from adjacent cell, therefore can effectively reduce inter-cell interference, obtains
Higher SINR.
When performing UE described above and its upstream data launching technique in the upstream direction, still may be used in the downstream direction
Carry out data transmission by method of the prior art.
It is, of course, also possible to all apply the embodiment of the present invention in up direction and down direction.For example, can be in up side
To real in identical special time period or in time/frequency source block with the down direction synchronization implementation present invention, i.e. uplink and downlink direction
Apply；Can also be in the asynchronous implementation present invention of up direction and down direction, i.e., uplink and downlink direction is in respective special time period
Or implement in time/frequency source block.In addition, on uplink and downlink direction, the not be the same as Example that the present invention is provided can also be performed respectively,
For example increase transmission power and notify that adjacent cell is silent in the upstream direction, at the same in the downstream direction increase transmission power and
Increase the angle of declination of transmitting antenna.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Above disclosed is only a kind of preferred embodiment of the invention, can not limit the power of the present invention with this certainly
Sharp scope, one of ordinary skill in the art will appreciate that all or part of flow of above-described embodiment is realized, and according to present invention power
Profit requires made equivalent variations, still falls within and invents covered scope.
Claims (10)
1. a kind of downlink data launching technique, it is characterised in that including：
Downlink data on sub-channel carries out high-order orthogonal pulse amplitude modulation, downlink data after being modulated；
Descending silent instruction is sent to adjacent cell, notifies the adjacent cell to be passed in the subchannel without downlink data
It is defeated；
Launch downlink data after the modulation using the first transmission power in the subchannel, first transmission power is more than
The average emitted power of this cell；
Wherein, when dividing the duplex technology transmitting downlink data when employed, the subchannel is the period；When double using frequency division
When work technology launches the downlink data, the subchannel is time/frequency source block.
2. the method as described in claim 1, it is characterised in that the high-order orthogonal pulse amplitude modulation is more than including constellation point
Or the orthogonal pulses amplitude modulation(PAM) equal to 256.
3. the method as described in claim 1, it is characterised in that when launching the downlink data using frequency division duplex technology,
Methods described also includes：
Low order orthogonal pulses amplitude modulation(PAM) is carried out to the downlink data in other time/frequency source blocks, lower line number after low-order-modulated is obtained
According to the low order orthogonal pulses amplitude modulation(PAM) includes the orthogonal pulses amplitude modulation(PAM) that sampling point is less than or equal to 64；
Launch downlink data, described second after the low-order-modulated using the second transmission power in other time/frequency source blocks
Transmission power is no more than the average emitted power of this cell.
4. the method as any one of claim 1-3, it is characterised in that methods described also includes：
When launching downlink data after the modulation using the first transmission power in the subchannel, by having a down dip for transmitting antenna
Angle increases 5-10 degree.
5. a kind of upstream data launching technique, it is characterised in that including：
The dispatch command of the network side equipment from this cell is received, the dispatch command includes subchannel information, and passes through institute
State network side equipment and send descending silent instruction to adjacent cell, notify the adjacent cell scheduling user's set not in the son
Transmitting uplink data is carried out on channel；
High-order orthogonal pulse amplitude modulation, upstream data after being modulated are carried out to the upstream data in the subchannel；
Launch upstream data after the modulation using the 4th transmission power in the subchannel, the 4th transmission power is more than
The average emitted power of user equipment；
Wherein, when dividing the duplex technology transmitting upstream data when employed, the subchannel is the period；When double using frequency division
When work technology launches the upstream data, the subchannel is time/frequency source block.
6. method as claimed in claim 5, it is characterised in that the high-order orthogonal pulse amplitude modulation is more than including constellation point
Or the orthogonal pulses amplitude modulation(PAM) equal to 256.
7. a kind of network side equipment, it is characterised in that including：
Modulation module, the downlink data on sub-channel carries out high-order orthogonal pulse amplitude modulation, descending after being modulated
Data；
Transmitter module, for sending descending silent instruction to adjacent cell, notifies the adjacent cell in the subchannel not
Carry out downlink data transmission；
And for launching downlink data after the modulation, first transmitting using the first transmission power in the subchannel
Power is more than the average emitted power of this cell；
Wherein, when the transmitter module uses Time division duplex, the subchannel is the period；When the transmitter module is adopted
When using frequency division duplex technology, the subchannel is time/frequency source block.
8. network side equipment as claimed in claim 7, it is characterised in that when using the frequency division duplex technology transmitting lower line number
According to when：
The modulation module is additionally operable to carry out low order orthogonal pulses amplitude modulation(PAM) to the downlink data in other time/frequency source blocks, obtains
Downlink data after to low-order-modulated, the low order orthogonal pulses amplitude modulation(PAM) includes the orthogonal pulses that constellation point is less than or equal to 64
Amplitude modulation(PAM)；
The sending module is additionally operable in other time/frequency source blocks launch the low-order-modulated using the second transmission power
Downlink data afterwards, second transmission power is no more than the average emitted power of this cell.
9. network side equipment as claimed in claim 7 or 8, it is characterised in that the network side equipment also includes：
Antenna adjustments module, for launching the modulation using the first transmission power in the subchannel when the sending module
Afterwards during downlink data, the angle of declination of transmitting antenna is increased into 5-10 degree.
10. a kind of user equipment, it is characterised in that including：
Receiving module, for receiving the dispatch command from the corresponding network side equipment of this cell, the dispatch command includes referring to
Sub-channel information, and descending silent instruction is sent to adjacent cell by the network side equipment, notify the adjacent cell
Scheduling user's set does not carry out transmitting uplink data in the specified subchannel；
Modulation module, for carrying out high-order orthogonal pulse amplitude modulation to the upstream data in the specified subchannel, is adjusted
Upstream data after system；
Transmitter module, for launching upstream data, institute after the modulation using larger transmission power in the specified subchannel
State the average emitted power that larger transmission power is more than user equipment；
Wherein, when the transmitter module launches the upstream data using Time division duplex, the subchannel is the period；
When the transmitter module launches the upstream data using frequency division duplex technology, the subchannel is time/frequency source block.
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| CN108235400B (en) * | 2016-12-12 | 2021-01-15 | 中国移动通信有限公司研究院 | Scheduling method and base station |
| JP7178414B2 (en) | 2018-01-12 | 2022-11-25 | オッポ広東移動通信有限公司 | DATA TRANSMISSION METHOD, APPARATUS, AND SYSTEM |
| CN112586084B (en) * | 2018-09-04 | 2023-06-23 | Oppo广东移动通信有限公司 | Service identifier display control method and device |
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| US20080049864A1 (en) * | 2006-08-28 | 2008-02-28 | Eriksson Stefan G | Method and apparatus for spectrum-preserving amplitude compression of a modulated signal |
| CN101141157B (en) * | 2006-09-08 | 2011-07-06 | 华为技术有限公司 | Uplink power control method and network side equipment |
| US8670774B2 (en) * | 2008-09-19 | 2014-03-11 | Qualcomm Incorporated | Systems and methods for uplink control resource allocation |
| CN102291810B (en) * | 2010-06-17 | 2014-07-09 | 华为技术有限公司 | Open loop power control method and device |
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| CN101405981A (en) * | 2006-03-17 | 2009-04-08 | 交互数字技术公司 | Method for adaptive quadrature amplitude modulation signal constellation remapping for data packet retransmissions |
| CN101247166A (en) * | 2007-02-16 | 2008-08-20 | 北京三星通信技术研究有限公司 | Device and method for transmitting scheduling request information |
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| CN107659530B (en) | 2020-09-18 |
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Effective date of registration: 20210427 Address after: Unit 3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong 518040 Patentee after: Honor Device Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |