CN105515743A - Pilot signal transmission control methods and system, and related devices - Google Patents
Pilot signal transmission control methods and system, and related devices Download PDFInfo
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- CN105515743A CN105515743A CN201510844137.XA CN201510844137A CN105515743A CN 105515743 A CN105515743 A CN 105515743A CN 201510844137 A CN201510844137 A CN 201510844137A CN 105515743 A CN105515743 A CN 105515743A
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- pilot signal
- control information
- exclusive pilot
- terminal
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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
Embodiments of the invention disclose pilot signal transmission control methods and a system, and related devices, aiming to lower the pilot overhead while exclusive pilots are realized. The method comprises the steps that a base station acquires channel demodulation information of a terminal; the base station determines control information for transmitting exclusive pilot signals in each transmission time interval (TTI) according to the channel demodulation information and the grade of the terminal, wherein the exclusive pilot signal is used for realizing differentiated added value services of the terminal, and the control information comprises the type of the exclusive pilot signal, the transmission frequency of the exclusive pilot signal and the length of the exclusive pilot signal; and the base station sends the control information to the terminal, so as to enable the terminal to finish transmission of the exclusive pilot signal in each TTI according to the control information.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of transfer control method of pilot signal, system and relevant device.
Background technology
Pilot signal is a signal of interest of mobile communication, is the Direct Sequence Spread Spectrum Signal of base station sequential filming non-modulated.In down direction, pilot signal is mainly used in Cell searching, down channel quality is measured and channel estimating, helps terminal (UserEquipment is called for short UE) to obtain channel demodulation information.In upstream direction, pilot signal is mainly used in the measurement of uplink signal-channel quality, power controls, timing and channel estimating, helps base station to obtain channel demodulation information.Wherein, extremely important to the measurement of two of pilot signal parameters in communication process, these two parameters comprise timing advance (TimingAdvance is called for short TA) and frequency deviation measurement.The measurement of timing advance is for eliminating the time synchronized deviation between UE and base station.Frequency deviation measurement is for eliminating the clock jitter between UE and base station, and the frequency deviation deviation that UE high-speed motion causes, in a dispatching cycle (TransmissionTimeInterval is called for short TTI), need two pilot signals for frequency deviation measurement.
Pilot signal divides according to use object, can be divided into common pilot signal and exclusive pilot signal.Common pilot signal is the public use of each UE, and take resource few, service efficiency is high; And exclusive pilot tone, use in each UE bandwidth or transfer resource, accuracy is high, but needs to transmit in each TII, takies resource many.Therefore, when arranging exclusive pilot tone, needing the time interval and the quantity of considering exclusive pilot tone, under the prerequisite ensureing certain channel estimation quality, reducing pilot-frequency expense as far as possible.
More common as Long Term Evolution (LongTermEvolution, be called for short LTE) system, in exclusive pilot settings process, directly add pilot signal in a frequency domain, in each TTI, multiple pilot signal is set, namely at least inserts a pilot signal in each channel, cause the expense of pilot tone larger, and for non-high-speed scene, maintain use two pilot signals for estimating that frequency deviation deviation then can cause user resources to waste always.
Summary of the invention
For the technological deficiency of above-mentioned existence, embodiments provide a kind of transfer control method of pilot signal, system and relevant device, for solving the excessive problem of pilot-frequency expense.
First aspect present invention provides a kind of transfer control method of pilot signal, can comprise:
Base station obtains the channel demodulation information of terminal;
Above-mentioned base station is according to the grade of above-mentioned channel demodulation information and above-mentioned terminal, determine in TTI each dispatching cycle for transmitting the control information of exclusive pilot signal, wherein, above-mentioned exclusive pilot signal is for realizing the differentiation value-added service of above-mentioned terminal, and above-mentioned control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length;
Above-mentioned control information is sent to above-mentioned terminal by above-mentioned base station, completes the transmission of exclusive pilot signal in each TTI to make above-mentioned terminal according to above-mentioned control information.
Can find out, in first aspect present invention, base station is by obtaining the channel demodulation information of terminal, then in conjunction with the grade of this terminal, determine the control information of the exclusive pilot signal transmission for control terminal, this control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length.Then control information is sent to terminal by base station, and terminal controls the transmission of exclusive pilot signal according to this control information.In embodiments of the present invention can according to terminal channel demodulating information, and coordinate the grade of terminal to go suitably to control frequency that exclusive pilot signal sends in each TTI and length, in the demand meeting user-specific pilot tone, reach the object controlling pilot-frequency expense.
In some embodiments of the invention, the channel demodulation information that above-mentioned base station obtains terminal comprises: the upstream data that above-mentioned base station receiving terminal sends, and obtains the channel demodulation information of above-mentioned terminal from above-mentioned upstream data.Be appreciated that, base station gets channel demodulation information from the upstream data that the terminal received sends, also need explanation, exclusive pilot signal is also included in this upstream data, but this exclusive pilot signal is the upper control information that terminal sends according to base station to be generated, here a upper control information refer to this control information send before send, and a control information last before this control information transmitting time, closest to this control information control information on the namely time.
Preferably, the exclusive pilot signal provided in the embodiment of the present invention comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
In some embodiments of the invention, control information is sent to terminal by base station, so that terminal when sending upstream data according to the transmission of the exclusive pilot signal in this control information control TTI, simultaneously, base station, when sending downlink data, also will control the transmission of exclusive pilot signal according to this control information.Specifically base station generates exclusive pilot signal according to above-mentioned control information, and the exclusive pilot signal of generation is set in the downlink data sent in each TTI according to the frequency of the exclusive pilot signal in above-mentioned control information, the downlink data being provided with exclusive pilot signal is sent to above-mentioned terminal.
Second aspect present invention provides a kind of transfer control method of pilot signal, can comprise:
Terminal receives the control information that base station sends, wherein, above-mentioned control information is that above-mentioned base station is determined according to the channel demodulation information of above-mentioned terminal and the grade of above-mentioned terminal, above-mentioned control information is used for transmitting exclusive pilot signal in each dispatching cycle in TII, above-mentioned control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length, and above-mentioned exclusive pilot signal is for realizing the differentiation value-added service of above-mentioned terminal;
Above-mentioned terminal generates exclusive pilot signal according to above-mentioned control information, and arranges the exclusive pilot signal of generation in the upstream data sent in each TTI according to the transmission frequency of the exclusive pilot signal in above-mentioned control information;
The upstream data being provided with exclusive pilot signal is sent to above-mentioned base station by above-mentioned terminal.
Can find out, the control information that sends according to base station of terminal in embodiments of the present invention, when sending upstream data, generate exclusive pilot signal according to control information and control the transmission of the exclusive pilot signal generated according to control information, the type of exclusive pilot signal in each TTI is included in this control information, the transmission frequency of exclusive pilot signal and exclusive pilot signal length, to realize realizing different frequency for different brackets user, the transmission of dissimilar exclusive pilot signal, to meet the demand of user-specific pilot tone, and reach the object controlling pilot-frequency expense on this basis, reduce the consumption of user resources.
In some embodiments of the invention, above-mentioned terminal comprises before receiving the control information of base station transmission: above-mentioned terminal sends upstream data to above-mentioned base station, above-mentioned upstream data includes the exclusive pilot signal that above-mentioned terminal generates according to upper control information, an above-mentioned upper control information be received before the time of reception of above-mentioned control information and time of reception closest to the control information of the time of reception of above-mentioned control information.
Preferably, above-mentioned exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
Third aspect present invention provides a kind of base station, can comprise:
Acquisition module, for obtaining the channel demodulation information of terminal;
Determination module, for the grade according to above-mentioned channel demodulation information and above-mentioned terminal, determine in TTI each dispatching cycle for transmitting the control information of exclusive pilot signal, wherein, above-mentioned exclusive pilot signal is for realizing the differentiation value-added service of above-mentioned terminal, and above-mentioned control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length;
Sending module, for above-mentioned control information is sent to above-mentioned terminal, completes the transmission of exclusive pilot signal in each TTI to make above-mentioned terminal according to above-mentioned control information.
In some embodiments of the invention, the upstream data that above-mentioned acquisition module sends specifically for, receiving terminal, obtains the channel demodulation information of above-mentioned terminal from above-mentioned upstream data.
In some embodiments of the invention, above-mentioned determination module specifically for, according to the grade of above-mentioned channel demodulation information and above-mentioned terminal, determine for transmitting the control information of exclusive pilot signal in each TTI, above-mentioned exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
In some embodiments of the invention, above-mentioned sending module also for, exclusive pilot signal is generated according to above-mentioned control information, and the exclusive pilot signal of generation is set in the downlink data sent in each TTI according to the frequency of the exclusive pilot signal in above-mentioned control information, the downlink data being provided with exclusive pilot signal is sent to above-mentioned terminal.
Fourth aspect present invention provides a kind of terminal, can comprise:
Receiver module, for receiving the control information that base station sends, wherein, above-mentioned control information is that above-mentioned base station is determined according to the channel demodulation information of above-mentioned terminal and the grade of above-mentioned terminal, above-mentioned control information is used for transmitting exclusive pilot signal in each dispatching cycle in TII, above-mentioned control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length, and above-mentioned exclusive pilot signal is for realizing the differentiation value-added service of above-mentioned terminal;
Processing module, for generating exclusive pilot signal according to above-mentioned control information, and arranges the exclusive pilot signal of generation in the upstream data sent in each TTI according to the transmission frequency of the exclusive pilot signal in above-mentioned control information;
Sending module, for sending to above-mentioned base station by the upstream data being provided with exclusive pilot signal.
In some embodiments of the invention, above-mentioned sending module also for, before the control information receiving base station transmission, upstream data is sent to above-mentioned base station, above-mentioned upstream data includes the exclusive pilot signal that above-mentioned terminal generates according to upper control information, an above-mentioned upper control information be received before the time of reception of above-mentioned control information and time of reception closest to the control information of the time of reception of above-mentioned control information.
Alternatively, above-mentioned exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
Fifth aspect present invention provides a kind of transmission control system of pilot signal, can comprise: the base station that the third aspect provides and the terminal that fourth aspect provides.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in the embodiment of the present invention below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic flow sheet of the transfer control method of the pilot signal that Fig. 1 provides for the embodiment of the present invention;
Another schematic flow sheet of the transfer control method of the pilot signal that Fig. 2 provides for the embodiment of the present invention;
The signaling diagram of the transfer control method of the pilot signal that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the base station that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the terminal that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the transmission control system of the pilot signal that Fig. 6 provides for the embodiment of the present invention;
The structural representation of the transmission control unit of the pilot signal that Fig. 7 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing of the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of transfer control method of pilot signal, on the basis of exclusive pilot tone demand meeting user, control pilot-frequency expense, avoid user resources to waste.The embodiment of the present invention additionally provides system corresponding to a kind of transfer control method of pilot signal, and base station, terminal.
The embodiment of the present invention can be applied in global system for mobile communications (GlobalSystemforMobileCommunication), also can be applied to universal mobile telecommunications system (UniversalMobileTelecommunicationsSystem, be called for short UMTS) in, Long Term Evolution (LongTermEvolution can also be applied to, be called for short LTE) in system, and in the system that provides of the 5th third-generation mobile communication technology (5G) that is applied to.
First, exclusive pilot signal is simply introduced.
In exclusive pilot signal, emphasis considers two parameters, and one is the signal measured for timing advance (TA), and another is the signal measured for frequency deviation deviation.Timing advance is measured for eliminating the time synchronized deviation between terminal and base station.Frequency deviation deviation is measured and to be moved the frequency departure caused for eliminating clock jitter between terminal and base station and terminal high-speed.Certainly, for exclusive pilot tone, there is exclusive pilot signal, but, in the communications, also have a signal to be necessary, no matter be exclusive pilot tone or public guide frequency, this signal is exactly the signal for channel estimating, and the signal primary user channels for channel estimating is estimated, to obtain channel demodulation information.Therefore, ensureing to have in each TTI outside the signal for channel estimating in the embodiment of the present invention, the setting of exclusive pilot signal how is realized.
When arranging exclusive pilot tone, need the time interval and the quantity of considering exclusive pilot tone, the consideration of the time interval and quantity then will with reference to following 3 points:
1st point: the complexity of subframe structure.From this point of view, wish that the quantity of pilot signal (comprising exclusive pilot signal and the signal for channel estimating) is not too many on the one hand, wish that the time interval shared by pilot signal and the time interval shared by data block preferably meet certain multiple proportion on the other hand, wish that the position of pilot signal is fixing simultaneously.
2nd point: pilot-frequency expense.From this point of view, wish pilot signal short (length is not too long) as far as possible, and the quantity of pilot signal lacking of trying one's best.
3rd point: channel estimation quality.From this point of view, wish that the quantity of pilot signal in the dispatching cycle can be more than one, because at high speeds, at least need 2 pilot signals could obtain enough channel estimating performances (needing two during frequency deviation measurement for the pilot signal of frequency deviation measurement).Need between pilot signal to keep certain time interval, but this time interval can not be excessive, each pilot frequency information be conducive to like this in associating subframe carries out subframe interpolate value simultaneously.
In conjunction with on the basis of above-mentioned 3, embodiments provide a kind of transfer control method of pilot signal.Refer to Fig. 1, the schematic flow sheet of the transfer control method of the pilot signal that Fig. 1 provides for the embodiment of the present invention; As shown in Figure 1, a kind of transfer control method of pilot signal can comprise:
101, base station obtains the channel demodulation information of terminal;
102, above-mentioned base station is according to the grade of above-mentioned channel demodulation information and above-mentioned terminal, determine in TTI each dispatching cycle for transmitting the control information of exclusive pilot signal, wherein, above-mentioned exclusive pilot signal is for realizing the differentiation value-added service of above-mentioned terminal, and above-mentioned control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length;
Wherein, exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
Need to illustrate, need the type of exclusive pilot signal, transmission frequency and length in the control information, dissimilar exclusive pilot signal takies different pilot blocks respectively.The signal that such as TA measures, arranges corresponding transmission frequency in each TTI, and is defined for the length of the exclusive pilot signal that this TA of transmission measures.Such as the signal that frequency deviation deviation is measured, in a TTI, at least need 2, therefore, according to the grade of channel demodulation information and terminal, determine a suitable transmission frequency and length.And there is no frequency deviation scene, can arrange this frequency deviation deviation and measure relevant exclusive pilot signal, namely corresponding exclusive pilot signal length should be 0 mutually.
Also need to illustrate, in the embodiment of the present invention, the grade of the terminal of indication refers to the user gradation that terminal use registers in respective operator, and such as VIP user and domestic consumer, pay the utmost attention to VIP user.Such as, when channel quality is bad, then can give the exclusive pilot signal that VIP user's configuration frequency is larger, to guarantee that user transmits experience.
Particularly, in step 101, base station obtains channel demodulation information from the upstream data that terminal sends.
Before terminal sends first upstream data, first control information is first determined according to the grade of terminal in base station.Then terminal arranges this exclusive pilot signal according to first control information in the upstream data sent.Therefore, if upstream data is herein the first data that terminal sends, the exclusive pilot signal so in this upstream data arranges according to first control information, and first control information only confirms according to the grade of terminal.If upstream data is herein the non-first data that terminal sends, exclusive pilot signal so in this upstream data is that the upper control information sent according to base station is determined, before the time that on this, control information refers to the control information that terminal receives in current time, last control information received, namely apart from the immediate control information of control information that current time receives.
103, above-mentioned control information is sent to above-mentioned terminal by above-mentioned base station, completes the transmission of exclusive pilot signal in each TTI to make above-mentioned terminal according to above-mentioned control information.
Be appreciated that the control information determined is sent to terminal by base station, then terminal is when sending upstream data, then can go to arrange exclusive pilot signal according to control information.
Wherein, control information is sent to terminal by base station, so that terminal is when sending upstream data, in each TTI, arranges exclusive pilot signal according to above-mentioned control information.Specifically comprise: base station generates exclusive pilot signal according to described control information, and the exclusive pilot signal of generation is set in the downlink data sent in each TTI according to the frequency of the exclusive pilot signal in described control information, the downlink data being provided with exclusive pilot signal is sent to described terminal.
Can find out, in the embodiment of the present invention, base station is by obtaining the channel demodulation information of terminal, then in conjunction with the grade of this terminal, determine the control information of the exclusive pilot signal transmission for control terminal, this control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length.Then control information is sent to terminal by base station, and terminal controls the transmission of exclusive pilot signal according to this control information.In embodiments of the present invention can according to terminal channel demodulating information, and coordinate the grade of terminal to go suitably to control frequency that exclusive pilot signal sends in each TTI and length, in the demand meeting user-specific pilot tone, reach the object controlling pilot-frequency expense.
Refer to Fig. 2, another schematic flow sheet of the transfer control method of the pilot signal that Fig. 2 provides for the embodiment of the present invention; As shown in Figure 2, a kind of transfer control method of pilot signal can comprise:
201, terminal receives the control information that base station sends, wherein, above-mentioned control information is that above-mentioned base station is determined according to the channel demodulation information of above-mentioned terminal and the grade of above-mentioned terminal, above-mentioned control information is used for transmitting exclusive pilot signal in each dispatching cycle in TII, above-mentioned control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length, and above-mentioned exclusive pilot signal is for realizing the differentiation value-added service of above-mentioned terminal;
Wherein, above-mentioned exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
In some embodiments of the invention, terminal is by sending upstream data to base station, and then base station obtains channel demodulation information from upstream data.
Need explanation, if upstream data is the first upstream data that terminal sends, so this first upstream data is that first control information sent according to base station arranges exclusive pilot signal, first control signal is that base station confirms according to the grade of terminal, in the determination of first control signal, do not consider channel demodulation signal.
If this upstream data is not first data, the exclusive pilot signal that so this upstream data is arranged is that the upper control information sent according to base station obtains, a upper control information is before the time receiving this control information, last control information received, namely a control information immediate apart from the time of reception of this control information.
202, above-mentioned terminal generates exclusive pilot signal according to above-mentioned control information, and arranges the exclusive pilot signal of generation in the upstream data sent in each TTI according to the transmission frequency of the exclusive pilot signal in above-mentioned control information;
203, the upstream data being provided with exclusive pilot signal is sent to above-mentioned base station by above-mentioned terminal.
Can find out, the control information that sends according to base station of terminal in embodiments of the present invention, when sending upstream data, generate exclusive pilot signal according to control information and control the transmission of the exclusive pilot signal generated according to control information, the type of exclusive pilot signal in each TTI is included in this control information, the transmission frequency of exclusive pilot signal and exclusive pilot signal length, to realize realizing different frequency for different brackets user, the transmission of dissimilar exclusive pilot signal, to meet the demand of user-specific pilot tone, and reach the object controlling pilot-frequency expense on this basis, reduce the consumption of user resources.
Refer to Fig. 3, the signaling diagram of the transfer control method of the pilot signal that Fig. 3 provides for the embodiment of the present invention; As shown in Figure 3, a kind of transfer control method of pilot signal can comprise:
301, the control information of exclusive pilot signal is determined in base station according to the grade of terminal;
Wherein, eliminate in the embodiment of the present invention determine exclusive pilot signal control information outside, the signal for channel estimating can be arranged according to prior art, does not describe in detail in embodiments of the present invention.
302, this control information is handed down to terminal by base station;
303, terminal receives this control information, arranges exclusive pilot signal according to this control information in the upstream data sent;
Certainly, the signal being used for channel estimating is also set in this upstream data.
304, the upstream data being provided with exclusive pilot signal is sent to base station by terminal;
305, base station receiving terminal send upstream data, from this upstream data for obtaining channel demodulation signal the signal of channel estimating;
306, base station is according to the grade of this channel demodulation signal and this terminal, determines the control information of exclusive pilot signal;
307, control information is sent to terminal by base station.
Need to illustrate, step 301 and the control information in 306 can be two control informations that particular content is identical, also can be different two control informations of particular content.Such as, when channel demodulation signal is analyzed, find that the channel status in this channel demodulation signal is identical with last time, then the particular content when the secondary control information determined is identical with last time, and specifically the type of exclusive pilot signal in control information, length are identical with the concrete numerical value of transmission frequency.When the channel status indicated by signal receiving signal there occurs change or terminal have changed grade, so control information also can be different.
Refer to Fig. 4, the structural representation of the base station that Fig. 4 provides for the embodiment of the present invention; As shown in Figure 4, a kind of base station can comprise:
Acquisition module 410, for obtaining the channel demodulation information of terminal;
Determination module 420, for the grade according to described channel demodulation information and described terminal, determine in TTI each dispatching cycle for transmitting the control information of exclusive pilot signal, wherein, described exclusive pilot signal is for realizing the differentiation value-added service of described terminal, and described control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length;
Sending module 430, for described control information is sent to described terminal, completes the transmission of exclusive pilot signal in each TTI to make described terminal according to described control information.
Can find out, acquisition module 410 is by obtaining the channel demodulation information of terminal, then determination module 420 is in conjunction with the grade of this terminal, determine the control information of the exclusive pilot signal transmission for control terminal, this control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length.Then by sending module 430, control information is sent to terminal, terminal controls the transmission of exclusive pilot signal according to this control information.In embodiments of the present invention can according to terminal channel demodulating information, and coordinate the grade of terminal to go suitably to control frequency that exclusive pilot signal sends in each TTI and length, in the demand meeting user-specific pilot tone, reach the object controlling pilot-frequency expense.
In some embodiments of the invention, the upstream data that above-mentioned acquisition module 410 sends specifically for, receiving terminal, obtains the channel demodulation information of described terminal from described upstream data.
In some embodiments of the invention, above-mentioned determination module 420 specifically for, according to the grade of described channel demodulation information and described terminal, determine for transmitting the control information of exclusive pilot signal in each TTI, described exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
In some embodiments of the invention, above-mentioned sending module 430 is specifically for generating exclusive pilot signal according to described control information, and the exclusive pilot signal of generation is set in the downlink data sent in each TTI according to the frequency of the exclusive pilot signal in described control information, the downlink data being provided with exclusive pilot signal is sent to described terminal.
Refer to Fig. 5, the structural representation of the terminal that Fig. 5 provides for the embodiment of the present invention; As shown in Figure 5, a kind of terminal can comprise:
Receiver module 510, for receiving the control information that base station sends, wherein, described control information is that described base station is determined according to the channel demodulation information of described terminal and the grade of described terminal, described control information is used for transmitting exclusive pilot signal in each dispatching cycle in TII, described control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length, and described exclusive pilot signal is for realizing the differentiation value-added service of described terminal;
Processing module 520, for generating exclusive pilot signal according to described control information, and arranges the exclusive pilot signal of generation in the upstream data sent in each TTI according to the transmission frequency of the exclusive pilot signal in described control information;
Sending module 530, for sending to described base station by the upstream data being provided with exclusive pilot signal.
Alternatively, above-mentioned exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
Can find out, receiver module 510 receives the control information that base station sends in embodiments of the present invention, when sending upstream data, processing module 520 generates exclusive pilot signal according to control information and controls the transmission of the exclusive pilot signal generated according to control information, the type of exclusive pilot signal in each TTI is included in this control information, the transmission frequency of exclusive pilot signal and exclusive pilot signal length, to realize realizing different frequency for different brackets user, the transmission of dissimilar exclusive pilot signal, to meet the demand of user-specific pilot tone, and reach the object controlling pilot-frequency expense on this basis, reduce the consumption of user resources.
In some embodiments of the invention, above-mentioned sending module 530 also for, before the control information receiving base station transmission, upstream data is sent to described base station, described upstream data includes the exclusive pilot signal that described terminal generates according to upper control information, a described upper control information be received before the time of reception of described control information and time of reception closest to the control information of the time of reception of described control information.
Refer to Fig. 6, the structural representation of the transmission control system of the pilot signal that Fig. 6 provides for the embodiment of the present invention; As shown in Figure 6, a kind of transmission control system of pilot signal can comprise:
Base station shown in Fig. 4 and the terminal shown in Fig. 5, wherein, the introduction for base station can consult said method embodiment and embodiment corresponding to Fig. 4, and the introduction for terminal can consult said method embodiment and embodiment corresponding to Fig. 5.
Please refer to Fig. 7, the structural representation of the transmission control unit of the pilot signal that Fig. 7 provides for the embodiment of the present invention, wherein, at least one processor 701 (such as CPU can be comprised, CentralProcessingUnit), at least one network interface or other communication interface, memory 702, with at least one communication bus, for realizing the connection communication between these devices.The executable module of described processor 701 for storing in execute store, such as computer program.Described memory 702 may comprise high-speed random access memory (RAM, RandomAccessMemory), still may comprise non-labile memory (non-volatilememory), such as at least one magnetic disc store.Realize the communication connection between this system gateway and at least one other network element by least one network interface (can be wired or wireless), can the Internet be used, wide area network, local network, metropolitan area network etc.
As shown in Figure 7, in some embodiments, store program command in described memory 702, program command can be performed by processor 701, and described processor 701 specifically performs following steps: the channel demodulation information obtaining terminal; According to the grade of described channel demodulation information and described terminal, determine in TTI each dispatching cycle for transmitting the control information of exclusive pilot signal, wherein, described exclusive pilot signal is for realizing the differentiation value-added service of described terminal, and described control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length; Described control information is sent to described terminal, completes the transmission of exclusive pilot signal in each TTI to make described terminal according to described control information; Or,
Receive the control information that base station sends, wherein, described control information is that described base station is determined according to the channel demodulation information of described terminal and the grade of described terminal, described control information is used for transmitting exclusive pilot signal in each dispatching cycle in TII, described control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length, and described exclusive pilot signal is for realizing the differentiation value-added service of described terminal; Generate exclusive pilot signal according to described control information, and in the upstream data sent in each TTI according to the transmission frequency of the exclusive pilot signal in described control information, the exclusive pilot signal of generation is set; The upstream data being provided with exclusive pilot signal is sent to described base station.
In some embodiments, described processor 701 can also perform following steps: the upstream data that receiving terminal sends, and obtains the channel demodulation information of described terminal from described upstream data.
In some embodiments, described processor 701 can also perform following steps: according to the grade of described channel demodulation information and described terminal, determine for transmitting the control information of exclusive pilot signal in each TTI, described exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
In some embodiments, described processor 701 can also perform following steps: generate exclusive pilot signal according to described control information, and the exclusive pilot signal of generation is set in the downlink data sent in each TTI according to the frequency of the exclusive pilot signal in described control information, the downlink data being provided with exclusive pilot signal is sent to described terminal.
In some embodiments, described processor 701 can also perform following steps: receive the control information of base station transmission in terminal before, upstream data is sent to described base station, described upstream data includes the exclusive pilot signal that described terminal generates according to upper control information, a described upper control information be received before the time of reception of described control information and time of reception closest to the control information of the time of reception of described control information.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.
Above the transfer control method of a kind of pilot signal provided by the present invention, system and relevant device are described in detail, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (15)
1. a transfer control method for pilot signal, is characterized in that, comprising:
Base station obtains the channel demodulation information of terminal;
Described base station is according to the grade of described channel demodulation information and described terminal, determine in TTI each dispatching cycle for transmitting the control information of exclusive pilot signal, wherein, described exclusive pilot signal is for realizing the differentiation value-added service of described terminal, and described control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length;
Described control information is sent to described terminal by described base station, completes the transmission of exclusive pilot signal in each TTI to make described terminal according to described control information.
2. method according to claim 1, is characterized in that, the channel demodulation information that described base station obtains terminal comprises:
The upstream data that described base station receiving terminal sends, obtains the channel demodulation information of described terminal from described upstream data.
3. method according to claim 1 and 2, is characterized in that, described base station, according to the grade of described channel demodulation information and described terminal, determines that the control information transmitting exclusive pilot signal each dispatching cycle in TTI comprises:
Described base station is according to the grade of described channel demodulation information and described terminal, determine for transmitting the control information of exclusive pilot signal in each TTI, described exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
4. method according to claim 1, is characterized in that, described determine in TTI each dispatching cycle for transmit exclusive pilot signal control information after comprise:
Described base station generates exclusive pilot signal according to described control information, and the exclusive pilot signal of generation is set in the downlink data sent in each TTI according to the frequency of the exclusive pilot signal in described control information, the downlink data being provided with exclusive pilot signal is sent to described terminal.
5. a transfer control method for pilot signal, is characterized in that, comprising:
Terminal receives the control information that base station sends, wherein, described control information is that described base station is determined according to the channel demodulation information of described terminal and the grade of described terminal, described control information is used for transmitting exclusive pilot signal in each dispatching cycle in TII, described control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length, and described exclusive pilot signal is for realizing the differentiation value-added service of described terminal;
Described terminal generates exclusive pilot signal according to described control information, and arranges the exclusive pilot signal of generation in the upstream data sent in each TTI according to the transmission frequency of the exclusive pilot signal in described control information;
The upstream data being provided with exclusive pilot signal is sent to described base station by described terminal.
6. method according to claim 5, is characterized in that, described terminal comprises before receiving the control information of base station transmission:
Described terminal sends upstream data to described base station, described upstream data includes the exclusive pilot signal that described terminal generates according to upper control information, a described upper control information be received before the time of reception of described control information and time of reception closest to the control information of the time of reception of described control information.
7. the method according to claim 5 or 6, is characterized in that, described exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
8. a base station, is characterized in that, comprising:
Acquisition module, for obtaining the channel demodulation information of terminal;
Determination module, for the grade according to described channel demodulation information and described terminal, determine in TTI each dispatching cycle for transmitting the control information of exclusive pilot signal, wherein, described exclusive pilot signal is for realizing the differentiation value-added service of described terminal, and described control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length;
Sending module, for described control information is sent to described terminal, completes the transmission of exclusive pilot signal in each TTI to make described terminal according to described control information.
9. base station according to claim 8, is characterized in that,
The upstream data that described acquisition module sends specifically for, receiving terminal, obtains the channel demodulation information of described terminal from described upstream data.
10. base station according to claim 8 or claim 9, is characterized in that,
Described determination module specifically for, according to the grade of described channel demodulation information and described terminal, determine for transmitting the control information of exclusive pilot signal in each TTI, described exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
11. base stations according to claim 8, is characterized in that,
Described sending module also for, exclusive pilot signal is generated according to described control information, and the exclusive pilot signal of generation is set in the downlink data sent in each TTI according to the frequency of the exclusive pilot signal in described control information, the downlink data being provided with exclusive pilot signal is sent to described terminal.
12. 1 kinds of terminals, is characterized in that, comprising:
Receiver module, for receiving the control information that base station sends, wherein, described control information is that described base station is determined according to the channel demodulation information of described terminal and the grade of described terminal, described control information is used for transmitting exclusive pilot signal in each dispatching cycle in TII, described control information comprises the type of exclusive pilot signal, the transmission frequency of exclusive pilot signal and exclusive pilot signal length, and described exclusive pilot signal is for realizing the differentiation value-added service of described terminal;
Processing module, for generating exclusive pilot signal according to described control information, and arranges the exclusive pilot signal of generation in the upstream data sent in each TTI according to the transmission frequency of the exclusive pilot signal in described control information;
Sending module, for sending to described base station by the upstream data being provided with exclusive pilot signal.
13. terminals according to claim 12, is characterized in that,
Described sending module also for, before the control information receiving base station transmission, upstream data is sent to described base station, described upstream data includes the exclusive pilot signal that described terminal generates according to upper control information, a described upper control information be received before the time of reception of described control information and time of reception closest to the control information of the time of reception of described control information.
14. terminals according to claim 12 or 13, is characterized in that, described exclusive pilot signal comprises the signal measured for timing advance TA and/or the signal measured for frequency deviation deviation.
The transmission control system of 15. 1 kinds of pilot signals, is characterized in that, comprises the base station described in any one of claim 8 ~ 11, and the terminal described in any one of claim 12 ~ 14.
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