CN105515743B - A kind of transfer control method of pilot signal, system and relevant device - Google Patents
A kind of transfer control method of pilot signal, system and relevant device Download PDFInfo
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- CN105515743B CN105515743B CN201510844137.XA CN201510844137A CN105515743B CN 105515743 B CN105515743 B CN 105515743B CN 201510844137 A CN201510844137 A CN 201510844137A CN 105515743 B CN105515743 B CN 105515743B
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- pilot signal
- terminal
- control information
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- exclusive pilot
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- 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
Abstract
The embodiment of the invention discloses a kind of transfer control method of pilot signal, system and relevant devices, for solving the problems, such as that pilot-frequency expense is excessive on the basis of realizing exclusive pilot tone.The method comprise the steps that base station obtains the channel demodulating information of terminal；The base station is according to the grade of the channel demodulating information and the terminal, determine the control information that exclusive pilot signal is used for transmission in each TTI dispatching cycle, wherein, for the exclusive pilot signal for realizing the differentiation value-added service of the terminal, the control information includes the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length；The control information is sent to the terminal by the base station, so that the terminal completes the transmission of exclusive pilot signal in each TTI according to the control information.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of transfer control method of pilot signal, system and correlation
Equipment.
Background technique
Pilot signal is a signal of interest of mobile communication, is that base station continuously emits non-modulated Direct Sequence Spread Spectrum
Signal.In down direction, pilot signal is mainly used for cell searching, down channel quality measurement and channel estimation, helps
Terminal (User Equipment, abbreviation UE) obtains channel demodulating information.In upstream direction, pilot signal is mainly used for uplink
Measurement, power control, timing and the channel estimation of channel quality help base station to obtain channel demodulating information.Wherein, it communicated
It is extremely important to the measurement of two parameters of pilot signal in journey, the two parameters include timing it is advanced (Timing Advance,
Abbreviation TA) and frequency deviation measurement.Periodically advanced measurement is for eliminating the time synchronization deviation between UE and base station.Frequency deviation measurement is used
In eliminating frequency deviation deviation caused by the clock jitter and UE high-speed motion between UE and base station, in a dispatching cycle
In (Transmission Time Interval, abbreviation TTI), need there are two be used for frequency deviation measurement pilot signal.
Pilot signal can be divided into common pilot signal and exclusive pilot signal according to using object to divide.Public guide frequency
Signal is each UE public use, is taken up less resources, and service efficiency is high；And exclusive pilot tone, in each UE bandwidth or transmission money
It is used in source, accuracy is high, but needs to transmit in each TT I, and it is more to occupy resource.Therefore, when exclusive pilot tone is arranged,
The time interval and quantity for needing to consider exclusive pilot tone reduce lead as far as possible under the premise of guaranteeing certain channel estimation quality
Frequency expense.
It is relatively common such as long term evolution (Long Term Evolution, abbreviation LTE) system, in exclusive pilot settings
In the process, pilot signal is directly added in a frequency domain, the multiple pilot signals of setting in each TTI, i.e., in each channel extremely
It is inserted into a pilot signal less, causes the expense of pilot tone larger, and for non-high-speed scene, it maintains to believe using two pilot tones always
Number it will cause user resources wastes for estimating frequency deviation deviation.
Summary of the invention
For above-mentioned technological deficiency, the embodiment of the invention provides a kind of transfer control method of pilot signal,
System and relevant device, for solving the problems, such as that pilot-frequency expense is excessive.
First aspect present invention provides a kind of transfer control method of pilot signal, it may include:
The channel demodulating information of base station acquisition terminal；
Above-mentioned base station determines and uses in each TTI dispatching cycle according to the grade of above-mentioned channel demodulating information and above-mentioned terminal
In the control information for transmitting exclusive pilot signal, wherein above-mentioned exclusive pilot signal increases for realizing the differentiation of above-mentioned terminal
Value service, above-mentioned control information include the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot tone letter
Number length；
Above-mentioned control information is sent to above-mentioned terminal by above-mentioned base station, so that above-mentioned terminal is completed according to above-mentioned control information
The transmission of exclusive pilot signal in each TTI.
As can be seen that base station passes through the channel demodulating information for obtaining terminal, then in conjunction with this in first aspect present invention
The grade of terminal determines the control information of the exclusive pilot signal transmission for controlling terminal, includes special in the control information
Belong to type, the transmission frequency of exclusive pilot signal and the exclusive pilot signal length of pilot signal.Then base station will control information
It is sent to terminal, the transmission that terminal controls exclusive pilot signal according to the control information.It in embodiments of the present invention being capable of root
According to terminal channel demodulating information, and the grade of terminal is cooperated to go to suitably control what exclusive pilot signal was sent in each TTI
Frequency and length achieve the purpose that control pilot-frequency expense on meeting the needs of user-specific pilot tone.
In some embodiment of the invention, it includes: that above-mentioned base station receives that above-mentioned base station, which obtains the channel demodulating information of terminal,
The upstream data that terminal is sent, obtains the channel demodulating information of above-mentioned terminal from above-mentioned upstream data.It is appreciated that base station from
Channel demodulating information is got in the upstream data that the terminal received is sent, it is also necessary to be illustrated, be further included in the upstream data
There is exclusive pilot signal, but the exclusive pilot signal is that terminal is generated according to the upper control information that base station is sent, here
Upper control information refer to and sent before control information transmission, and before the control access time most
Closest to a control information of the control information in control an information, that is, time afterwards.
Preferably, the exclusive pilot signal provided in the embodiment of the present invention includes the signal for the advanced TA measurement of timing
And/or the signal for the measurement of frequency deviation deviation.
In some embodiment of the invention, base station is sent to terminal for information is controlled, so that terminal is sending upstream data
When according to the control information control TTI in exclusive pilot signal transmission, meanwhile, base station when sending downlink data, also general
The transmission of exclusive pilot signal is controlled according to the control information.Specifically base station generates exclusive pilot tone according to above-mentioned control information and believes
Number, and be arranged in the downlink data sent in each TTI according to the frequency of the exclusive pilot signal in above-mentioned control information and give birth to
At exclusive pilot signal, the downlink data for being provided with exclusive pilot signal is sent to above-mentioned terminal.
Second aspect of the present invention provides a kind of transfer control method of pilot signal, it may include:
Terminal receives the control information that base station is sent, wherein above-mentioned control information is above-mentioned base station according to above-mentioned terminal
The grade of channel demodulating information and above-mentioned terminal determines that above-mentioned control information is exclusive for transmitting in each TT dispatching cycle I
Pilot signal, above-mentioned control information include the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot tone
Signal length, above-mentioned exclusive pilot signal for realizing above-mentioned terminal differentiation value-added service；
Above-mentioned terminal generates exclusive pilot signal according to above-mentioned control information, and is led according to exclusive in above-mentioned control information
The exclusive pilot signal of generation is set in the upstream data that the transmission frequency of frequency signal is sent in each TTI；
The upstream data for being provided with exclusive pilot signal is sent to above-mentioned base station by above-mentioned terminal.
As can be seen that the control information that terminal is sent according to base station in embodiments of the present invention, when sending upstream data,
According to the control information come generate exclusive pilot signal and according to the control information come control generation exclusive pilot signal transmission, should
Controlling in information includes the type of exclusive pilot signal in each TTI, the transmission frequency of exclusive pilot signal and exclusive pilot tone
Signal length, to realize the transmission for realizing different frequency, different types of exclusive pilot signal for different brackets user, with full
The demand of sufficient user-specific pilot tone, and achieve the purpose that control pilot-frequency expense on this basis, reduce the consumption of user resources.
It in some embodiment of the invention, include: above-mentioned terminal before above-mentioned terminal receives the control information that base station is sent
Send upstream data to above-mentioned base station, above-mentioned upstream data include above-mentioned terminal according to upper one control information generate it is exclusive
Pilot signal, it is above-mentioned it is upper one control information be received before the receiving time of above-mentioned control information and receiving time
Closest to the control information of the receiving time of above-mentioned control information.
Preferably, above-mentioned exclusive pilot signal includes for the signal of the advanced TA measurement of timing and/or for frequency deviation deviation
The signal of measurement.
Third aspect present invention provides a kind of base station, it may include:
Module is obtained, for obtaining the channel demodulating information of terminal；
Determining module determines each TTI dispatching cycle for the grade according to above-mentioned channel demodulating information and above-mentioned terminal
In be used for transmission the control information of exclusive pilot signal, wherein above-mentioned exclusive pilot signal for realizing above-mentioned terminal difference
Change value-added service, above-mentioned control information includes the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive leads
Frequency signal length；
Sending module, for above-mentioned control information to be sent to above-mentioned terminal, so that above-mentioned terminal is believed according to above-mentioned control
Breath completes the transmission of exclusive pilot signal in each TTI.
In some embodiment of the invention, above-mentioned acquisition module is specifically used for, and the upstream data that terminal is sent is received, from upper
State the channel demodulating information that above-mentioned terminal is obtained in upstream data.
In some embodiment of the invention, above-mentioned determining module is specifically used for, according to above-mentioned channel demodulating information and above-mentioned
The grade of terminal determines that the control information that exclusive pilot signal is used for transmission in each TTI, above-mentioned exclusive pilot signal include using
In the signal of the advanced TA measurement of timing and/or for the signal of frequency deviation deviation measurement.
In some embodiment of the invention, above-mentioned sending module is also used to, and generates exclusive pilot tone according to above-mentioned control information
Signal, and be arranged in the downlink data sent in each TTI according to the frequency of the exclusive pilot signal in above-mentioned control information
The exclusive pilot signal generated, is sent to above-mentioned terminal for the downlink data for being provided with exclusive pilot signal.
Fourth aspect present invention provides a kind of terminal, it may include:
Receiving module, for receiving the control information of base station transmission, wherein above-mentioned control information is above-mentioned base station according to upper
The grade of the channel demodulating information and above-mentioned terminal of stating terminal determines that above-mentioned control information is used in each TT dispatching cycle I
Transmit exclusive pilot signal, above-mentioned control information include the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and
Exclusive pilot signal length, above-mentioned exclusive pilot signal for realizing above-mentioned terminal differentiation value-added service；
Processing module, for generating exclusive pilot signal according to above-mentioned control information, and according in above-mentioned control information
The exclusive pilot signal of generation is set in the upstream data that the transmission frequency of exclusive pilot signal is sent in each TTI；
Sending module, for the upstream data for being provided with exclusive pilot signal to be sent to above-mentioned base station.
In some embodiment of the invention, above-mentioned sending module is also used to, before receiving the control information that base station is sent,
Send upstream data to above-mentioned base station, above-mentioned upstream data include above-mentioned terminal according to upper one control information generate it is exclusive
Pilot signal, it is above-mentioned it is upper one control information be received before the receiving time of above-mentioned control information and receiving time
Closest to the control information of the receiving time of above-mentioned control information.
Optionally, above-mentioned exclusive pilot signal includes for the signal of the advanced TA measurement of timing and/or for frequency deviation deviation
The signal of measurement.
Fifth aspect present invention provides a kind of transmission control system of pilot signal, it may include: what the third aspect provided
The terminal that base station and fourth aspect provide.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the flow diagram of the transfer control method of pilot signal provided in an embodiment of the present invention；
Fig. 2 is another flow diagram of the transfer control method of pilot signal provided in an embodiment of the present invention；
Fig. 3 is the signaling diagram of the transfer control method of pilot signal provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of base station provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of terminal provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the transmission control system of pilot signal provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the transmission control unit of pilot signal provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing of the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a kind of transfer control methods of pilot signal, in the exclusive pilot tone for meeting user
On the basis of demand, pilot-frequency expense is controlled, user resources is avoided to waste.The embodiment of the invention also provides a kind of pilot signals
The corresponding system of transfer control method and base station, terminal.
The embodiment of the present invention can be applied to global system for mobile communications (Global System for Mobile
Communication in), it also can be applied to Universal Mobile Communication System (Universal Mobile
Telecommunications System, abbreviation UMTS) in, long term evolution (Long Term can also be applied to
Evolution, abbreviation LTE) in system, and be applied in the system that the 5th third-generation mobile communication technology (5G) provides.
Firstly, simply being introduced exclusive pilot signal.
Emphasis considers two parameters in exclusive pilot signal, and one is the signal measured for timing advanced (TA), another
A is the signal for the measurement of frequency deviation deviation.The advanced measurement of timing is for eliminating the time synchronization deviation between terminal and base station.Frequently
Wilfully difference measurements are used to eliminate frequency departure caused by clock jitter and terminal high-speed movement between terminal and base station.Certainly,
For exclusive pilot tone, have exclusive pilot signal, still, in the communications, there are one signal be it is necessary, either specially
Belong to pilot tone or public guide frequency, this signal are exactly the signal for channel estimation, the signal main users for channel estimation
Channel estimation, to obtain channel demodulating information.Therefore, have in each TTI of guarantee in the embodiment of the present invention and estimate for channel
Except the signal of meter, the setting of exclusive pilot signal how is realized.
When exclusive pilot tone is arranged, need to consider the time interval and quantity of exclusive pilot tone, and time interval and quantity
Consider then with reference to following three points:
1st point: the complexity of subframe structure.From this point of view, it is (including exclusive to be on the one hand desirable to pilot signal
Pilot signal and signal for channel estimation) quantity should not be too many, on the other hand wish between the time shared by pilot signal
Every preferably meeting certain multiple proportion with time interval shared by data block, at the same time it is wished that the position of pilot signal is fixed
's.
2nd point: pilot-frequency expense.From this point of view, it is desirable to which pilot signal is short as far as possible (length is not too long), and leads
The quantity of frequency signal lacking as far as possible.
3rd point: channel estimation quality.From this point of view, it is desirable to the quantity energy of pilot signal in a dispatching cycle
It is enough more than one, because at high speeds, at least needing 2 pilot signals that could obtain enough channel estimating performances (frequency
Two pilot signals for being used for frequency deviation measurement are needed when measuring partially).Between needing to keep the regular hour between pilot signal simultaneously
Every, but the time interval can not be excessive, is conducive to combine each pilot frequency information in a subframe in this way and carries out subframe interpolated value.
On the basis of combining above-mentioned 3 point, the embodiment of the invention provides a kind of transfer control methods of pilot signal.
Referring to Fig. 1, Fig. 1 is the flow diagram of the transfer control method of pilot signal provided in an embodiment of the present invention；Such as Fig. 1 institute
Show, a kind of transfer control method of pilot signal can include:
101, base station obtains the channel demodulating information of terminal；
102, above-mentioned base station determines each TTI dispatching cycle according to the grade of above-mentioned channel demodulating information and above-mentioned terminal
In be used for transmission the control information of exclusive pilot signal, wherein above-mentioned exclusive pilot signal for realizing above-mentioned terminal difference
Change value-added service, above-mentioned control information includes the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive leads
Frequency signal length；
Wherein, exclusive pilot signal includes measuring for the signal of the advanced TA measurement of timing and/or for frequency deviation deviation
Signal.
It is to be appreciated that the type of exclusive pilot signal, transmission frequency and length are needed in the control information, it is different types of
Exclusive pilot signal occupies different pilot blocks respectively.Such as the signal of TA measurement, the middle corresponding transmission of setting in each TTI
Frequency, and limit the length for being used for transmission the exclusive pilot signal of TA measurement.Such as the signal for the measurement of frequency deviation deviation,
2 are at least needed in a TTI, therefore, according to the grade of channel demodulating information and terminal, determines a suitable transmission
Frequency and length.And there is no frequency deviation scene, it can not have to that the relevant exclusive pilot signal of frequency deviation deviation measurement is arranged, yet
It is that corresponding exclusive pilot signal length mutually should be 0.
Also it is to be appreciated that the grade of terminal signified in the embodiment of the present invention refers to that terminal user infuses in respective operator
The user gradation of volume, such as VIP user and ordinary user, pay the utmost attention to VIP user.For example, then may be used when channel quality is bad
With the exclusive pilot signal bigger to VIP user configuration frequency, to ensure that user transmits experience.
Specifically, base station obtains channel demodulating information from the upstream data that terminal is sent in step 101.
Before terminal sends first upstream data, base station first determines first control information according to the grade of terminal.
Then the exclusive pilot signal is arranged according to first control information in terminal in the upstream data of transmission.Therefore, if herein
Upstream data is the first data that terminal is sent, then the exclusive pilot signal in the upstream data is believed according to first control
Breath setting, first control information confirm according only to the grade of terminal.If upstream data herein is the non-first of terminal transmission
Data, then the exclusive pilot signal in the upstream data is the upper control information determination sent according to base station, one on this
A control information refers to terminal before the time for the control information that current time receives, the last one the control letter received
Breath, that is, apart from the immediate control information of the control information that current time receives.
103, above-mentioned control information is sent to above-mentioned terminal by above-mentioned base station, so that above-mentioned terminal is according to above-mentioned control information
Complete the transmission of exclusive pilot signal in each TTI.
It is appreciated that determining control information is sent to terminal by base station, then terminal then may be used when sending upstream data
To go to be arranged exclusive pilot signal according to the control information.
Wherein, base station is sent to terminal for information is controlled, so that terminal is when sending upstream data, the root in each TTI
According to above-mentioned control information, exclusive pilot signal is set.Specifically include: base station generates exclusive pilot tone according to the control information and believes
Number, and be arranged in the downlink data sent in each TTI according to the frequency of the exclusive pilot signal in the control information and give birth to
At exclusive pilot signal, the downlink data for being provided with exclusive pilot signal is sent to the terminal.
As can be seen that base station passes through the channel demodulating information for obtaining terminal in the embodiment of the present invention, then in conjunction with the terminal
Grade, determine the control information of the exclusive pilot signal transmission for controlling terminal, include exclusive leading in the control information
The type of frequency signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length.Then base station will control information and send
To terminal, transmission that terminal controls exclusive pilot signal according to the control information.It in embodiments of the present invention can be according to end
Channel demodulating information is held, and the grade of terminal is cooperated to go to suitably control the frequency that exclusive pilot signal is sent in each TTI
And length achievees the purpose that control pilot-frequency expense on meeting the needs of user-specific pilot tone.
Referring to Fig. 2, Fig. 2 is another process signal of the transfer control method of pilot signal provided in an embodiment of the present invention
Figure；As shown in Fig. 2, a kind of transfer control method of pilot signal can include:
201, terminal receives the control information that base station is sent, wherein above-mentioned control information is above-mentioned base station according to above-mentioned end
The channel demodulating information at end and the grade of above-mentioned terminal determine that above-mentioned control information in each TT dispatching cycle I for transmitting
Exclusive pilot signal, above-mentioned control information include the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive
Pilot signal length, above-mentioned exclusive pilot signal for realizing above-mentioned terminal differentiation value-added service；
Wherein, above-mentioned exclusive pilot signal includes surveying for the signal of the advanced TA measurement of timing and/or for frequency deviation deviation
The signal of amount.
In some embodiment of the invention, terminal is by sending upstream data to base station, and then base station is from upstream data
Obtain channel demodulating information.
It is to be appreciated that if upstream data is the first upstream data that terminal is sent, then the first upstream data is basis
Exclusive pilot signal is arranged in the first control information that base station is sent, and first control signal is that base station is true according to the grade of terminal
Recognize, does not account for channel demodulated signal in the determination that first controls signal.
If the upstream data is not first data, then the exclusive pilot signal of upstream data setting is sent out according to base station
What the upper control information sent obtained, upper control information was received before the time for receiving the control information
The last one control information, that is, the immediate control information of receiving time apart from the control information.
202, above-mentioned terminal generates exclusive pilot signal according to above-mentioned control information, and according to special in above-mentioned control information
The exclusive pilot signal of generation is set in the upstream data that the transmission frequency of category pilot signal is sent in each TTI；
203, the upstream data for being provided with exclusive pilot signal is sent to above-mentioned base station by above-mentioned terminal.
As can be seen that the control information that terminal is sent according to base station in embodiments of the present invention, when sending upstream data,
According to the control information come generate exclusive pilot signal and according to the control information come control generation exclusive pilot signal transmission, should
Controlling in information includes the type of exclusive pilot signal in each TTI, the transmission frequency of exclusive pilot signal and exclusive pilot tone
Signal length, to realize the transmission for realizing different frequency, different types of exclusive pilot signal for different brackets user, with full
The demand of sufficient user-specific pilot tone, and achieve the purpose that control pilot-frequency expense on this basis, reduce the consumption of user resources.
Referring to Fig. 3, Fig. 3 is the signaling diagram of the transfer control method of pilot signal provided in an embodiment of the present invention；Such as Fig. 3
It is shown, a kind of transfer control method of pilot signal can include:
301, base station determines the control information of exclusive pilot signal according to the grade of terminal；
Wherein, it is eliminated in the embodiment of the present invention except the control information for determining exclusive pilot signal, is used for channel estimation
Signal can be configured according to the prior art, do not describe in detail in embodiments of the present invention.
302, the control information is handed down to terminal by base station；
303, terminal receives the control information, and exclusive pilot tone is arranged in the upstream data of transmission according to the control information and believes
Number；
Certainly, the signal for channel estimation is also set up in the upstream data.
304, the upstream data for being provided with exclusive pilot signal is sent to base station by terminal；
305, base station receives the upstream data that terminal is sent, and obtains from the signal for channel estimation of the upstream data
Channel demodulated signal；
306, base station determines the control information of exclusive pilot signal according to the grade of the channel demodulated signal and the terminal；
307, base station is sent to terminal for information is controlled.
It is to be appreciated that step 301 and the control information in 306 can be the identical two control information of particular content,
It can be two different control information of particular content.For example, finding that the channel demodulates when channel demodulated signal is analyzed
Channel status in signal is identical as last time, then when the particular content of the control information of secondary determination is identical as last time, specifically controls
The type of exclusive pilot signal, length are identical with the specific value of transmission frequency in information processed.Indicated by signal demodulated signal
Channel status changed or terminal has changed grade, then control information also can be different.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram of base station provided in an embodiment of the present invention；As shown in figure 4, a kind of base station
Can include:
Module 410 is obtained, for obtaining the channel demodulating information of terminal；
Determining module 420 determines each dispatching cycle for the grade according to the channel demodulating information and the terminal
The control information of exclusive pilot signal is used for transmission in TTI, wherein the exclusive pilot signal for realizing the terminal difference
Alienation value-added service, the control information include the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive
Pilot signal length；
Sending module 430, for the control information to be sent to the terminal, so that the terminal is according to the control
Information completes the transmission of exclusive pilot signal in each TTI.
As can be seen that obtaining module 410 by the channel demodulating information of acquisition terminal, the then combination of determining module 420 should
The grade of terminal determines the control information of the exclusive pilot signal transmission for controlling terminal, includes special in the control information
Belong to type, the transmission frequency of exclusive pilot signal and the exclusive pilot signal length of pilot signal.Then pass through sending module 430
Control information is sent to terminal, the transmission that terminal controls exclusive pilot signal according to the control information.Implement in the present invention
Can be according to terminal channel demodulating information in example, and the grade of terminal is cooperated to go to suitably control exclusive pilot signal each
The frequency and length sent in TTI achievees the purpose that control pilot-frequency expense on meeting the needs of user-specific pilot tone.
In some embodiment of the invention, above-mentioned acquisition module 410 is specifically used for, and receives the upstream data that terminal is sent,
The channel demodulating information of the terminal is obtained from the upstream data.
In some embodiment of the invention, above-mentioned determining module 420 is specifically used for, according to the channel demodulating information and institute
The grade for stating terminal determines that the control information that exclusive pilot signal is used for transmission in each TTI, the exclusive pilot signal include
For the signal of the advanced TA measurement of timing and/or for the signal of frequency deviation deviation measurement.
In some embodiment of the invention, above-mentioned sending module 430 is specifically used for being generated according to the control information exclusive
Pilot signal, and according in the downlink data that is sent in each TTI of frequency of the exclusive pilot signal in the control information
The exclusive pilot signal generated is set, the downlink data for being provided with exclusive pilot signal is sent to the terminal.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram of terminal provided in an embodiment of the present invention；As shown in figure 5, a kind of terminal
Can include:
Receiving module 510, for receiving the control information of base station transmission, wherein the control information is the base station root
Determine that the control information is used in each TT dispatching cycle according to the channel demodulating information of the terminal and the grade of the terminal
The exclusive pilot signal of transmission in I, the control information includes the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal
With exclusive pilot signal length, the exclusive pilot signal for realizing the terminal differentiation value-added service；
Processing module 520, for generating exclusive pilot signal according to the control information, and according in the control information
Exclusive pilot signal the upstream data that is sent in each TTI of transmission frequency in the exclusive pilot signal of generation is set；
Sending module 530, for the upstream data for being provided with exclusive pilot signal to be sent to the base station.
Optionally, above-mentioned exclusive pilot signal includes for the signal of the advanced TA measurement of timing and/or for frequency deviation deviation
The signal of measurement.
As can be seen that receiving module 510 receives the control information that base station is sent in embodiments of the present invention, uplink is being sent
When data, processing module 520 generates exclusive pilot signal according to the control information and controls the special of generation according to the control information
Belong to the transmission of pilot signal, includes the type of exclusive pilot signal in each TTI, exclusive pilot signal in the control information
Transmission frequency and exclusive pilot signal length, with realize for different brackets user realize different frequency, it is different types of specially
Belong to the transmission of pilot signal, to meet the needs of user-specific pilot tone, and achieve the purpose that control pilot-frequency expense on this basis,
Reduce the consumption of user resources.
In some embodiment of the invention, above-mentioned sending module 530 is also used to, receive base station send control information it
Before, upstream data is sent to the base station, the upstream data includes that the terminal is generated according to upper one control information
Exclusive pilot signal, the upper control information are received and are received before the receiving time of the control information
Control information of the time closest to the receiving time for controlling information.
Referring to Fig. 6, Fig. 6 is the structural schematic diagram of the transmission control system of pilot signal provided in an embodiment of the present invention；
As shown in fig. 6, a kind of transmission control system of pilot signal can include:
Base station shown in Fig. 4 and terminal shown in fig. 5, wherein can be refering to above method reality for the introduction of base station
Example and the corresponding embodiment of Fig. 4 are applied, it can be refering to above method embodiment and the corresponding embodiment of Fig. 5 for the introduction of terminal.
Referring to FIG. 7, Fig. 7 is the structural schematic diagram of the transmission control unit of pilot signal provided in an embodiment of the present invention,
Wherein, it may include at least one processor 701 (such as CPU, Central Processing Unit), at least one network connects
Mouth or other communication interfaces, memory 702 and at least one communication bus are logical for realizing the connection between these devices
Letter.The processor 701 is for executing the executable module stored in memory, such as computer program.The memory 702
May include high-speed random access memory (RAM, Random Access Memory), it is also possible to further include non-labile deposit
Reservoir (non-volatile memory), for example, at least a magnetic disk storage.It (can be with by least one network interface
It is wired or wireless) realize communication connection between the system gateway and at least one other network element, internet can be used,
Wide area network, local network, Metropolitan Area Network (MAN) etc..
As shown in fig. 7, in some embodiments, program instruction is stored in the memory 702, program instruction can be with
It is executed by processor 701, the processor 701 specifically executes following steps: obtaining the channel demodulating information of terminal；According to described
The grade of channel demodulating information and the terminal determines the control that exclusive pilot signal is used for transmission in each TTI dispatching cycle
Information, wherein for the exclusive pilot signal for realizing the differentiation value-added service of the terminal, the control information includes special
Belong to type, the transmission frequency of exclusive pilot signal and the exclusive pilot signal length of pilot signal；The control information is sent
To the terminal, so that the terminal completes the transmission of exclusive pilot signal in each TTI according to the control information；Or,
Receive the control information that base station is sent, wherein the control information is channel of the base station according to the terminal
The grade of demodulating information and the terminal determines that the control information is for transmitting exclusive pilot tone in each TT dispatching cycle I
Signal, the control information includes the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal
Length, the exclusive pilot signal for realizing the terminal differentiation value-added service；It is generated according to the control information special
Belong to pilot signal, and the uplink sent in each TTI according to the transmission frequency of the exclusive pilot signal in the control information
The exclusive pilot signal of generation is set in data；The upstream data for being provided with exclusive pilot signal is sent to the base station.
In some embodiments, following steps can also be performed in the processor 701: receiving the upper line number that terminal is sent
According to obtaining the channel demodulating information of the terminal from the upstream data.
In some embodiments, following steps can also be performed in the processor 701: according to the channel demodulating information
With the grade of the terminal, the control information that exclusive pilot signal is used for transmission in each TTI, the exclusive pilot signal are determined
Including the signal for the advanced TA measurement of timing and/or for the signal of frequency deviation deviation measurement.
In some embodiments, following steps can also be performed in the processor 701: being generated according to the control information
Exclusive pilot signal, and the lower line number sent in each TTI according to the frequency of the exclusive pilot signal in the control information
According to the exclusive pilot signal that middle setting generates, the downlink data for being provided with exclusive pilot signal is sent to the terminal.
In some embodiments, following steps can also be performed in the processor 701: receiving what base station was sent in terminal
Before controlling information, upstream data is sent to the base station, the upstream data includes that the terminal is controlled according to upper one
The exclusive pilot signal that information generates, the upper control information are received before the receiving time of the control information
And receiving time closest to it is described control information receiving time control information.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, reference can be made to the related descriptions of other embodiments.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
A kind of transfer control method of pilot signal provided by the present invention, system and relevant device have been carried out in detail above
Thin to introduce, for those of ordinary skill in the art, thought according to an embodiment of the present invention in specific embodiment and applies model
Place that there will be changes, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (15)
1. a kind of transfer control method of pilot signal characterized by comprising
The channel demodulating information of base station acquisition terminal；
The base station determines in each TTI dispatching cycle according to the grade of the channel demodulating information and the terminal for passing
The control information of defeated exclusive pilot signal, wherein the exclusive pilot signal is rised in value for realizing the differentiation of the terminal to be taken
Business, the control information includes that the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal are long
Degree；
The control information is sent to the terminal by the base station, so that the terminal is completed each according to the control information
The transmission of exclusive pilot signal in TTI.
2. the method according to claim 1, wherein the channel demodulating information that the base station obtains terminal includes:
The base station receives the upstream data that terminal is sent, and the channel demodulation letter of the terminal is obtained from the upstream data
Breath.
3. method according to claim 1 or 2, which is characterized in that the base station is according to the channel demodulating information and institute
The grade for stating terminal determines that the control information that exclusive pilot signal is transmitted in each TTI dispatching cycle includes:
The base station determines according to the grade of the channel demodulating information and the terminal and is used for transmission exclusive lead in each TTI
The control information of frequency signal, the exclusive pilot signal include inclined for the signal of the advanced TA measurement of timing and/or for frequency deviation
The signal of difference measurements.
4. the method according to claim 1, wherein being used for transmission in each TTI dispatching cycle of the determination specially
Include: after the control information of category pilot signal
The base station generates exclusive pilot signal according to the control information, and is believed according to the exclusive pilot tone in the control information
Number the downlink data that is sent in each TTI of frequency in the exclusive pilot signal of generation is set, exclusive pilot tone letter will be provided with
Number downlink data be sent to the terminal.
5. a kind of transfer control method of pilot signal characterized by comprising
Terminal receives the control information that base station is sent, wherein the control information is channel of the base station according to the terminal
The grade of demodulating information and the terminal determines that the control information is for transmitting exclusive pilot tone in each TT dispatching cycle I
Signal, the control information includes the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal
Length, the exclusive pilot signal for realizing the terminal differentiation value-added service；
The terminal generates exclusive pilot signal according to the control information, and is believed according to the exclusive pilot tone in the control information
Number the upstream data that is sent in each TTI of transmission frequency in the exclusive pilot signal of generation is set；
The upstream data for being provided with exclusive pilot signal is sent to the base station by the terminal.
6. according to the method described in claim 5, it is characterized in that, the terminal is wrapped before receiving the control information that base station is sent
It includes:
The terminal sends upstream data to the base station, and the upstream data includes that the terminal is believed according to a upper control
The exclusive pilot signal generated is ceased, the upper control information is received before the receiving time of the control information
And receiving time closest to it is described control information receiving time control information.
7. method according to claim 5 or 6, which is characterized in that the exclusive pilot signal includes advanced for timing
The signal of TA measurement and/or the signal measured for frequency deviation deviation.
8. a kind of base station characterized by comprising
Module is obtained, for obtaining the channel demodulating information of terminal；
Determining module is determined and is used in each TTI dispatching cycle for the grade according to the channel demodulating information and the terminal
In the control information for transmitting exclusive pilot signal, wherein the exclusive pilot signal increases for realizing the differentiation of the terminal
Value service, the control information include the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot tone letter
Number length；
Sending module, for the control information to be sent to the terminal, so that the terminal is complete according to the control information
At the transmission of exclusive pilot signal in each TTI.
9. base station according to claim 8, which is characterized in that
The acquisition module is specifically used for, and receives the upstream data that terminal is sent, the terminal is obtained from the upstream data
Channel demodulating information.
10. base station according to claim 8 or claim 9, which is characterized in that
The determining module is specifically used for, and according to the grade of the channel demodulating information and the terminal, determines and uses in each TTI
In the control information for transmitting exclusive pilot signal, the exclusive pilot signal include for the advanced TA measurement of timing signal and/
Or the signal for the measurement of frequency deviation deviation.
11. base station according to claim 8, which is characterized in that
The sending module is also used to, and generates exclusive pilot signal according to the control information, and according in the control information
Exclusive pilot signal the downlink data that is sent in each TTI of frequency in the exclusive pilot signal of generation is set, will be arranged
There is the downlink data of exclusive pilot signal to be sent to the terminal.
12. a kind of terminal characterized by comprising
Receiving module, for receiving the control information of base station transmission, wherein the control information is the base station according to the end
The channel demodulating information at end and the grade of the terminal determine that the control information in each TT dispatching cycle I for transmitting
Exclusive pilot signal, the control information include the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive
Pilot signal length, the exclusive pilot signal for realizing the terminal differentiation value-added service；
Processing module, for generating exclusive pilot signal according to the control information, and according to exclusive in the control information
The exclusive pilot signal of generation is set in the upstream data that the transmission frequency of pilot signal is sent in each TTI；
Sending module, for the upstream data for being provided with exclusive pilot signal to be sent to the base station.
13. terminal according to claim 12, which is characterized in that
The sending module is also used to, and before receiving the control information that base station is sent, sends upstream data, institute to the base station
Stating upstream data includes the exclusive pilot signal that the terminal controls information generation according to upper one, the upper control letter
Breath be it is described control information receiving time before receive and receiving time closest to it is described control information reception
The control information of time.
14. terminal according to claim 12 or 13, which is characterized in that the exclusive pilot signal includes for periodically surpassing
The signal of preceding TA measurement and/or the signal measured for frequency deviation deviation.
15. a kind of transmission control system of pilot signal, which is characterized in that including the described in any item bases of claim 8~11
It stands and the described in any item terminals of claim 12~14.
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| CN107453853B (en) * | 2016-05-31 | 2020-10-16 | 华为技术有限公司 | Method and device for pilot frequency transmission |
| CN106788928B (en) | 2016-08-09 | 2019-01-04 | 北京展讯高科通信技术有限公司 | Pilot frequency symbol position determines method, user terminal |
| CN109219130B (en) * | 2017-06-30 | 2020-01-21 | 华为技术有限公司 | Synchronization method and device |
| CN111901081A (en) * | 2020-01-16 | 2020-11-06 | 中兴通讯股份有限公司 | Data transmission method and device, first communication node and second communication node |
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