CN102857957B - The signal processing method and its device of GSM with reciprocity - Google Patents

The signal processing method and its device of GSM with reciprocity Download PDF

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CN102857957B
CN102857957B CN201110179903.7A CN201110179903A CN102857957B CN 102857957 B CN102857957 B CN 102857957B CN 201110179903 A CN201110179903 A CN 201110179903A CN 102857957 B CN102857957 B CN 102857957B
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data
reference signal
actual
frequency deviation
module
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CN102857957A (en
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丁美玲
高扬
金蕾
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2012/073060 priority patent/WO2013000301A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools

Abstract

The invention discloses the signal processing method of the GSM with reciprocity and its device.The signal processing method of the present invention, by the way that the predetermined first position of generic frame structure is set into the first reference signal and the second reference signal, so as to avoid because of channel estimation problems caused by spatial time delay；Again by positioning the actual receiving position of first reference signal and the second reference signal, channel estimation is carried out respectively further according to the actual receiving position received data, and frequency deviation information is obtained according to the correlation between two actual channel estimated results, the pending data of corresponding units of data carry is carried out entangling frequency offset processing further according to the frequency deviation information, avoid influence of the frequency deviation to signal, so as to improve the precision of signal transacting, the accuracy to the hard analogue system of network is reduced；On the other hand protection interval is set in the predetermined second place of the data cell of frame structure, so as to avoid interference of the signal to other time slots of analog transmissions terminal transmission.

Description

The signal processing method and its device of GSM with reciprocity
Technical field
The present invention relates to GSM, more particularly to the GSM with reciprocity signal processing method And its device.
Background technology
Civilian GSM is general based on honeycomb, and presented in the form of mobile communications network, and net Network optimization is an important ring for mobile communications network.
Under normal circumstances, the network optimization is dependent on test terminal, by testing terminal generation and record GSM Related data in overlay area, is optimized finally by data analysis to network, but the signal handling capacity of test terminal And limited precision, while the existing neighbor cell configuration of network is need to rely on, and in practical situations both, the phenomenon of adjacent cell leakage is Generally existing, therefore there is certain limitation using the method for testing the terminal progress network optimization.In addition, the network optimization is also Can be using equipment such as sweep generators, although this method can be partly effective under the scene of adjacent cell leakage, due to descending The homogenous frequency signal of multiple cell is interfered so that the precision of signal measurement is affected, and carries out part configuration tune in network After whole, it is also desirable to retest, with reflect network adjustment after signal difference superposition in the case of new situation so that there is also Certain limitation.
There is the GSM of reciprocity feature for uplink downlink, refer to Fig. 1, profit has been proposed at present With the hard analogue system of network of the descending covering of up signal estimation, such as a kind of TD SDMA (TD-SCDMA) movement Communication system, and about the method for signal transacting.The efficiency of the network optimization can be greatly improved and accurate by the system Property.But the frame structure that the hard analogue system of current network is defined using standard, when carrying out signal transacting, reaches in propagation delay To after certain value, the data division for channel estimation can cause not within the channel estimation window of base station Base station can not measure and parse to signal, and this will make it that the hard analogue system of network is difficult normal work.Simultaneously as not having Consider that frequency deviation, for the influence of signal transacting, so as to reduce the precision of signal transacting under partial condition, have impact on network hard The accuracy of analogue system.
Therefore, the signal processing method for the hard analogue system of network needs further to be designed.
The content of the invention
The main technical problem to be solved in the present invention, which is to provide a kind of uplink downlink, has the mobile communication system of reciprocity The signal processing method and its device of system, it is to avoid system can not measure reconciliation to signal caused by spatial time delay Analysis, while avoiding influence of the frequency deviation to signal, so as to improve the precision of signal transacting, reduction has reciprocity to uplink downlink GSM accuracy.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
A kind of uplink downlink has the signal processing method of the GSM of reciprocity, by the uplink downlink The first precalculated position at least one data cell of the generic frame structure of GSM with reciprocity is set to For the first reference signal and the second reference signal of channel estimation, outside first precalculated position of the data cell Pending data is carried in other positions.
Further, methods described also includes installing the second pre-determined bit of at least one data cell of the frame structure It is set to the protection interval for the protection to adjacent time-slots.
Further, for a data cell, the signal processing method includes：
Position the actual receiving position of first reference signal and the second reference signal；
According to first reference signal and the actual receiving position received data of the second reference signal, carry out respectively Channel estimation, respectively obtains corresponding first actual channel estimated result and the second actual channel estimated result；
According to the correlation between the first actual channel estimated result and the second actual channel estimated result, frequency is obtained Believe one side only breath；
The pending data of the units of data carry is carried out entangling frequency offset processing according to the frequency deviation information.
Further, the step of actual receiving position of positioning first reference signal and the second reference signal, bag Include：
Channel estimation is carried out according to the theoretical receiving position received data of second reference signal, theoretical letter is obtained Road estimated result；
Most powerful path position is found in the paper channel estimated result；
According to the most powerful path position, starting path position is extrapolated；
Calculated according to the starting path position and obtain analog transmissions terminal to the time delay of system；
According to the time delay of the analog transmissions terminal to system, first reference signal and second is respectively obtained with reference to letter Number actual receiving position.
Further, the data cell includes multiple chips, and the data cell is held according to the frequency deviation information The step of pending data of load carries out entangling frequency offset processing, including：Started with the center of first reference signal, before One chip, compensates predetermined phase more.
Further, the pending data of one units of data carry is carried out according to the frequency deviation information Entangle after frequency offset processing, in addition to step：
According to the first actual channel estimated result and/or the second actual channel estimated result, to entangling the institute after frequency deviation The pending data for stating a units of data carry is demodulated.
Further, methods described is also included the latter number of adjacent two data cell of the generic frame structure Protection interval is set to according to the second precalculated position of unit.
Further, for two adjacent data cells, the signal processing method includes：
Position the actual receiving position of respective second reference signal of the adjacent two data unit；
According to the actual receiving position received data of respective second reference signal of the adjacent two data unit, The channel estimation of frequency domain is carried out respectively, obtains the 3rd actual channel estimated result and the 4th actual channel estimated result；
According to the correlation between the 3rd actual channel estimated result and the 4th actual channel estimated result, frequency is obtained Believe one side only breath；
The pending data each carried to described two data cells respectively according to the frequency deviation information carries out entangling frequency deviation Processing.
Further, the actual receiving position of adjacent respective second reference signal of two data cells is positioned The step of, including：
The theoretical received bit of the second reference signal in a data cell in described two adjacent data cells Received data is put, the channel estimation of frequency domain is carried out, obtains the paper channel estimated result of frequency domain；
The paper channel estimated result of the frequency domain is transformed into time domain；
Most powerful path position is found in the paper channel estimated result after conversion；
According to the most powerful path position, starting path position is extrapolated；
Calculated according to the starting path position and obtain analog transmissions terminal to the time delay of system；
According to the time delay of the analog transmissions terminal to system, described two adjacent data cells are respectively obtained respective The actual receiving position of second reference signal.
Further, one data cell includes at least one symbol, according to the frequency deviation information respectively to institute The step of pending data for stating two adjacent data cell carryings carries out entangling frequency offset processing, including：For a data cell, Started with the second reference signal of the data cell, per previous symbol, the first predetermined phase is compensated phase more, per latter symbol Number, the second predetermined phase of many compensation.
Further, the pending data described two data cells each carried respectively according to the frequency deviation information After the step of frequency offset processing is entangled in progress, including：Estimated according to the 3rd actual channel estimated result and the 4th actual channel As a result, respectively to entangling after frequency deviation, the pending data that two adjacent data cells are each carried is demodulated.
A kind of uplink downlink has the signal processing apparatus of the GSM of reciprocity, the uplink downlink tool Have the GSM of reciprocity generic frame structure at least one data cell in the first precalculated position be set to use The second pre-determined bit in the first reference signal and the second reference signal of channel estimation, at least one described data cell is installed It is set to the protection interval for the protection to adjacent time-slots, first precalculated position of the data cell and the second pre-determined bit Pending data is carried in other positions outside putting, the signal processing apparatus includes：The actual receiving position of reference signal is determined Position module, channel estimation module, frequency deviation information acquisition module and frequency deviation module is entangled, wherein, for each data cell,
The actual receiving position locating module of reference signal, for positioning first reference signal and the second reference signal Actual receiving position；
Channel estimation module, is connected with the actual receiving position locating module of the reference signal, for according to the reference First reference signal of the actual receiving position locating module positioning of signal and the actual receiving position of the second reference signal are received Data, channel estimation is carried out respectively, corresponding first actual channel estimated result and the second actual channel estimated result is obtained；
Frequency deviation information acquisition module, is connected with the channel estimation module, for being estimated according to the channel estimation module Correlation between obtained the first actual channel estimated result and the second actual channel estimated result, obtains frequency deviation letter Breath；
Frequency deviation module is entangled, and the frequency deviation information acquisition module, for what is obtained according to the frequency deviation information acquisition module Frequency deviation information, the pending data to one units of data carry carries out entangling frequency offset processing.
Further, the actual receiving position locating module of the reference signal includes pre-estimation submodule, most powerful path search Submodule, starting footpath calculating sub module and positioning submodule, wherein,
The pre-estimation submodule, enters for the theoretical receiving position received data according to second reference signal Row channel estimation, obtains paper channel estimated result；
The most powerful path searches for submodule, is connected with the pre-estimation submodule, for estimating to tie in the paper channel Most powerful path position is searched in fruit；
Starting footpath calculating sub module, submodule is searched for the most powerful path, for the most powerful path obtained according to search Position, which is calculated, to be obtained originating path position；
The positioning submodule, is connected with starting footpath calculating sub module, for being inferred according to the starting path position Go out analog transmissions terminal to the time delay of system, and with the reality of the first reference signal and the second reference signal described in the time delay localization Border receiving position.
Further, described device also includes demodulation module, with the channel estimation module and described entangling frequency deviation module It is connected, for the first actual channel estimated result and/or the second reality for estimating to obtain according to the channel estimation module Channel estimation results, enter to the pending data for entangling after frequency deviation/entangling one units of data carry before frequency deviation respectively Row demodulation.
A kind of uplink downlink has the signal processing apparatus of the GSM of reciprocity, the uplink downlink tool Have the GSM of reciprocity generic frame structure at least one data cell in the first precalculated position be set to use In the first reference signal and the second reference signal of channel estimation, latter data cell of two adjacent data cells The second precalculated position be provided for adjacent time-slots protection protection interval, two adjacent data cells it is described Pending data is carried in other positions outside first precalculated position and the second precalculated position, the signal processing apparatus includes The actual receiving position locating module of reference signal, channel estimation module, frequency deviation information acquisition module and frequency deviation module is entangled, wherein, For two adjacent data cells,
The reference signal is actual to receive locating module, for positioning adjacent two data cells respective second The actual receiving position of reference signal；
The channel estimation module is connected with the actual receiving position locating module of the reference signal, for according to the phase The actual receiving position received data of respective second reference signal of adjacent two data cells, carries out the channel of frequency domain respectively Estimation, obtains corresponding 3rd actual channel estimated result and the 4th actual channel estimated result；
The frequency deviation information acquisition module, is connected with the channel estimation module, for according to the channel estimation module Correlation between estimated obtained the 3rd actual channel estimated result and the 4th actual channel estimated result, obtains frequency Believe one side only breath；
It is described to entangle frequency deviation module, it is connected with the frequency deviation information acquisition module, for obtaining mould according to the frequency deviation information The frequency deviation information that block is obtained, the pending data each carried to the adjacent two data unit respectively entangle at frequency deviation Reason.
Further, the actual receiving position locating module of the reference signal include pre-estimation submodule, transform subblock, Most powerful path search submodule, starting footpath calculating sub module and positioning submodule, wherein,
The pre-estimation submodule, second for a data cell in two adjacent data cells The theoretical receiving position received data of reference signal, carries out the channel estimation of frequency domain, obtains paper channel estimated result；
The transform subblock, is connected with the pre-estimation submodule, for the reason for estimating the pre-estimation submodule Time domain is transformed into by channel estimation results；
The most powerful path searches for submodule, is connected with the transform subblock, for after transform subblock conversion The paper channel estimated result in, search most powerful path position；
The starting footpath calculates search, is connected with most powerful path search submodule, for being searched for according to the most powerful path The most powerful path position that submodule is searched, calculates starting path position；
The positioning submodule, is connected with starting footpath calculating sub module, for calculating submodule according to the starting footpath Block calculates obtained starting path position, and calculating obtains analog transmissions terminal to the time delay of system, and with described in the time delay localization The actual receiving position of respective second reference signal of two neighboring data cell.
Further, described device also includes demodulation module, with the channel estimation module and described entangling frequency deviation module It is connected, for the 3rd actual channel estimated result and the 4th actual channel for estimating to obtain according to the channel estimation module Estimated result, the pending data each carried to entangling after frequency deviation/entangling the adjacent two data unit before frequency deviation respectively is entered Row demodulation.
The beneficial effects of the invention are as follows：
The uplink downlink of the present invention has the signal processing method of the GSM of reciprocity, by by general knot First precalculated position of at least one data cell of structure frame is set to the first reference signal and the second reference signal, so as to avoid Spatial time delay reached after certain value, for channel estimation data division by the channel estimation window of no longer base station it It is interior and lead to not measure signal and parse；On the other hand, the present invention is by by the second precalculated position of data cell Protection interval is set to, or the second precalculated position of latter data cell in adjacent two data unit is set to guarantor Shield interval, so as to avoid the interference of the adjacent ascending time slot reception to base station or the contiguous downstream time slot reception of other-end.
The signal processing method of the present invention, for a data cell, by being joined according to first reference signal and second Examine the actual receiving position received data of signal to carry out channel estimation, according to the correlation between two channel estimation results Frequency deviation information is obtained, the pending data of corresponding units of data carry is carried out entangling frequency offset processing further according to the frequency deviation information, Influence of the frequency deviation to signal is avoided, and then improves the precision of signal transacting, is reduced to the accurate of the hard analogue system of network Property；During for two adjacent data cells, then pass through the reality of the second reference signal in two adjacent data cells Border receiving position received data carries out channel estimation, and obtains corresponding actual channel estimated result, and according to this two Correlation between the corresponding actual channel estimated result of individual second reference signal obtains frequency deviation information, further according to the frequency deviation information Respectively the pending data that the adjacent two data unit is carried is carried out entangling frequency deviation, that is, avoids influence of the frequency deviation to signal, And then the precision of signal transacting is improved, reduce the accuracy to the hard analogue system of network.
The uplink downlink of the present invention has the signal processing apparatus of the GSM of reciprocity, by by general knot First precalculated position of at least one data cell of structure frame is set to the first reference signal and the second reference signal, and passes through ginseng The actual receiving position locating module of signal is examined to position the actual receiving position of the first reference signal and the second reference signal, then by Channel estimation module is believed according to the actual receiving position received data of first reference signal and the second reference signal Road is estimated, obtains corresponding first actual channel estimated result and the second actual channel estimated result, and obtain by frequency deviation information Correlation between two actual channel estimated results that modulus root tuber is estimated according to channel estimation module, obtains frequency deviation information, then As entangling frequency deviation information of the frequency deviation module according to acquired in the frequency deviation information acquisition module, frequency offset processing is entangled in progress, so as to avoid Spatial time delay reaches after certain value that the data division for channel estimation is by within the channel estimation window of no longer base station And lead to not measure signal and parse, that is, influence of the frequency deviation to signal is avoided, and then improve the essence of signal transacting Degree, reduces the accuracy to the hard analogue system of network, on the other hand, by being set to the second precalculated position of data cell to protect Shield interval, so as to avoid the interference of the adjacent ascending time slot reception to base station or the contiguous downstream time slot reception of other-end.
The uplink downlink of the present invention has the signal processing apparatus of the GSM of reciprocity, by by interchangeable frame The first precalculated position at least one data cell of structure is set to the first reference signal and the second reference signal, and passes through The actual receiving position locating module of reference signal is by the actual reception of adjacent respective second reference signal of two data cells Position is positioned, then by the actual reception of the second reference signal in channel estimation module respectively two data cells adjacent according to this Position received data carries out channel estimation, then two estimated by frequency deviation information acquisition module according to the channel estimation module Correlation between actual channel estimated result obtains frequency deviation information, finally obtains mould by entangling frequency deviation module according to frequency deviation information The frequency deviation information that block is obtained carries out entangling frequency deviation to the pending data that the adjacent two data unit is carried respectively, so as to avoid Spatial time delay reaches after certain value that the data division for channel estimation is by within the channel estimation window of no longer base station And lead to not measure signal and parse, that is, influence of the frequency deviation to signal is avoided, and then improve the essence of signal transacting Degree, reduces the accuracy to the hard analogue system of network；On the other hand, by by the latter number in two adjacent data cells Protection interval is set to according to the second precalculated position of unit, the adjacent ascending time slot of base station is received or other ends so as to avoid The interference that the contiguous downstream time slot at end is received.
Brief description of the drawings
Fig. 1 is the structural representation of the hard analogue system of network；
The schematic diagram of one embodiment of the generic frame structure of the hard analogue system of network of Fig. 2 present invention；
Fig. 3 is the structural representation of an embodiment of the signal processing apparatus of the hard analogue system of network of the present invention；
Fig. 4 is the knot of an embodiment of the actual receiving position locating module of reference signal of the signal processing apparatus of the present invention Structure schematic diagram；
Fig. 5 is the flow chart of an embodiment of the signal processing method of the present invention；
Fig. 6 is the flow chart of the step S501 of the signal processing method of a present invention embodiment；
Fig. 7 a and Fig. 7 b are respectively the standard Timeslot structural representation and the present invention of current TD-SCDMA GSMs The hard analogue system of TD-SCDMA network frame structure schematic diagram；
Fig. 8 is a specific embodiment of the signal processing method based on the hard analogue system of TD-SCDMA network of the present invention Flow chart；
Fig. 9 is the corresponding channel estimation schematic diagram of frame structure in the hard analogue system of TD-SCDMA network；
Figure 10 is the structural representation of the another embodiment of the signal processing apparatus of the hard analogue system of network of the present invention；
Figure 11 is the another embodiment of the actual receiving position locating module of reference signal of the signal processing apparatus of the present invention Structural representation；
Figure 12 is the flow chart of the another embodiment of the signal processing method of the present invention；
Figure 13 is the flow chart of the step S1201 of the signal processing method of a present invention embodiment；
Figure 14 is the standard subframe structure schematic diagram of TD-LTE GSMs；
Figure 15 is the frame structure schematic diagram of the hard analogue system of TD-LTE networks of the present invention；
Figure 16 is a specific embodiment of the signal processing method based on the hard analogue system of TD-LTE networks of the present invention Flow chart.
Embodiment
The present invention is described in further detail below by embodiment combination accompanying drawing.
The GSM that uplink downlink in present embodiment has reciprocity includes the shifting of time division duplex (TDD) Dynamic communication system, such as TD-SCDMA；Time-division Long Term Evolution (TD-LTE) GSM；It can also be uplink downlink frequency The GSM for the FDD (FDD) being closer to, key is that uplink downlink possesses a certain degree of reciprocity.
At present, the hard analogue system of network uses the frame structure that standard is defined, as shown in Fig. 7 a and Figure 14, at progress signal During reason, then problems with occurs：
First, reached in propagation delay after certain value, the data division for channel estimation is not by the letter of base station Within road estimating window, cause base station signal can not be measured and parsed.
2nd, the transmission signal of analog transmissions terminal by influence base station adjacent ascending time slot receive or other terminals it is adjacent Descending time slot is received.
Wherein, first problem causes the hard analogue system of network it is difficult to normal work；Second Problem will influence existing net Other business of network are carried out.Therefore, present embodiment defines a kind of network that is applied to and imitated firmly on the basis of standard frame The generic frame structure of true system.The uplink downlink of present embodiment has the GSM of reciprocity, and its is corresponding The first precalculated position at least one data cell of generic frame structure is provided for the first reference signal of channel estimation With the second reference signal, the second precalculated position is set to protection interval, and removes the first precalculated position and second in data cell Pending data etc. is carried in other positions outside precalculated position.Fig. 2 is refer to, is a kind of interchangeable frame knot of present embodiment The schematic diagram of one embodiment of structure, wherein, data 1 (DATA1) and data 2 (DATA2) are partly used for bearer service data；At this Position between data 1 (DATA1) and data 2 (DATA2) is provided for reference signal 1 (RS1) and the reference of channel estimation Signal 2 (RS2), cyclic prefix (CP)；The frame structure of the present embodiment also includes the protection interval for being used to protect adjacent time-slots (GP) part, so as to avoid adjacent ascending time slot reception or the phase of other terminal of the transmission signal of analog transmissions terminal to base station The influence that adjacent descending time slot is received.But in specific application, can according to the demand of corresponding system, wherein DATA1 and/or DATA2 parts can not be necessary.
Corresponding signal processing method and its device are additionally provided based on above-mentioned generic frame structure present embodiment, below This two parts will be described in detail in conjunction with specific embodiments.
Embodiment one：
Fig. 3 is refer to, is the signal transacting that the uplink downlink of present embodiment has the GSM of reciprocity The structural representation of one embodiment of device.The signal processing apparatus of present embodiment is fixed including the actual receiving position of reference signal Position module 301, channel estimation module 302, frequency deviation information acquisition module 303, entangles frequency deviation module 304 and demodulation module 305, its In, for each data cell, the actual receiving position locating module 301 of reference signal is used to position the first reference signal and the The actual receiving position of two reference signals, channel estimation module 302, with the actual receiving position locating module 301 of the reference signal It is connected, for the first reference signal positioned according to the actual receiving position locating module 301 of the reference signal and second with reference to letter Number actual receiving position received data, channel estimation is carried out respectively, corresponding first actual channel estimated result is obtained With the second actual channel estimated result；Frequency deviation information acquisition module 303, is connected with the channel estimation module 302, should for basis Correlation between the first actual channel estimated result and the second actual channel estimated result of channel estimation module estimation, is obtained Frequency deviation information；Frequency deviation module 304 is entangled, and the frequency deviation information acquisition module 303, for being obtained according to the frequency deviation information acquisition module Frequency deviation information, to corresponding data unit carry pending data carry out entangle frequency offset processing；Demodulation module 305, estimates with channel Meter module 302 is entangled frequency deviation module 304 with this and is connected, and the first actual channel for being estimated according to channel estimation module 302 is estimated As a result with the second actual channel estimated result, the pending data to entangling after frequency deviation/entangling the corresponding data unit carrying before frequency deviation It is demodulated.
Fig. 4 is refer to, is the structure of an embodiment of the actual receiving position locating module of reference signal of present embodiment Schematic diagram.The actual receiving position locating module of reference signal of present embodiment includes pre-estimation submodule 401, most powerful path and searched for Submodule 402, starting footpath calculating sub module 403 and positioning submodule 404, wherein, pre-estimation submodule 401 is used for according to second The theoretical receiving position received data of reference signal carries out channel estimation, obtains paper channel estimated result；Most powerful path is searched Large rope module 402 is connected with the pre-estimation submodule 401, for the paper channel estimation estimated in the pre-estimation submodule 401 As a result it is middle to search most powerful path position；Footpath calculating sub module 403 is originated, is connected with most powerful path search submodule 402, for basis The most powerful path position that most powerful path search submodule 402 is searched, calculates starting path position；Depending on bit submodule 404, with this Originate footpath calculating sub module 403 to be connected, infer for calculating obtained starting path position according to the starting footpath calculating sub module 403 Analog transmissions terminal is obtained to the time delay of system, and with the time delay of the analog transmissions terminal to system, positions corresponding data unit In the first reference signal and the second reference signal actual receiving position.
There is the signal processing apparatus of the GSM of reciprocity, present embodiment based on above-mentioned uplink downlink Also providing a kind of uplink downlink has the signal processing method of GSM of reciprocity.With reference to specific embodiment The signal processing method of present embodiment is described in detail.
Embodiment two：
Fig. 5 is refer to, is an a kind of implementation of the signal processing method of the hard analogue system system of network of present embodiment The flow chart of example.The signal processing method of present embodiment includes：
The actual receiving position of S501, the first reference signal of positioning and the second reference signal, performs step S503.
Fig. 6 is refer to, is the flow chart of the step S501 of a present embodiment embodiment.The step of present embodiment S501, including：
S601, the theoretical receiving position received data of the second reference signal in the data cell, is believed Road is estimated, obtains paper channel estimated result.
S603, finds the position of most powerful path in the paper channel estimated result.
S605, according to the most powerful path position, extrapolates the position in starting footpath.
S607, calculates according to the starting path position and obtains analog transmissions terminal to the time delay of system.
S609, according to the time delay of the analog transmissions terminal to system, obtains the first reference signal and of the data cell The actual receiving position of two reference signals.
S503, according to the first reference signal of positioning and the actual receiving position received data of the second reference signal, Channel estimation is carried out respectively, respectively obtains corresponding first actual channel estimated result and the second actual channel estimated result.
Actual receiving position in present embodiment is that for theoretical receiving position, actual receiving position refers to The position of the reference signal of first reference signal/second is an actually-received, and according to the actual receiving position received data Carry out the as actual channel estimated result that channel estimation is obtained；Theoretical receiving position refers to the transmission according to analog transmissions terminal Information field and correlation theory can calculate that what is obtained should receive the position of the reference signal of the first reference signal/second in theory Put, and the as paper channel estimated result that channel estimation is obtained is carried out according to the theoretical receiving position received data.
S505, according to the correlation between the first actual channel estimated result and the second actual channel estimated result, is obtained Frequency deviation information.
S507, carries out entangling frequency offset processing according to frequency deviation information to the pending data of the units of data carry.
The pending data carried in present embodiment according to frequency deviation information to corresponding data unit carries out entangling frequency offset processing Including：Started with the center of the first signal in the data cell, per previous chip, compensate a predetermined phase more.
S509, according to the first actual channel estimated result and/or the second actual channel estimated result, to entangling being somebody's turn to do after frequency deviation The pending data of data cell is demodulated.
Certainly, after first can also being demodulated in present embodiment to the pending data of the units of data carry, then root Carry out entangling frequency deviation according to the first actual channel estimated result and/or the second actual signal estimated result.
The uplink downlink of present embodiment has the signal processing method of the GSM of reciprocity, passes through basis First reference signal and the actual receiving position received data of the second reference signal carry out channel estimation, and according to two Correlation between channel estimation results obtains frequency deviation information, and corresponding units of data carry is treated further according to the frequency deviation information Processing data carries out entangling frequency offset processing, so that influence of the frequency deviation to signal is avoided, so that the precision of signal transacting is improved, and reduction pair The accuracy of the hard analogue system of network.
The signal processing method of present embodiment is illustrated with reference to a specific embodiment.
Fig. 7 a and Fig. 7 b are refer to, it is respectively the standard Timeslot structural representation of current TD-SCDMA GSMs Figure, and the frame structure schematic diagram in the hard analogue system of TD-SCDMA network of the present embodiment.
When system uses standard frame as shown in Figure 7a, due to spatial time delay, it is difficult just that may cause system Often work, simultaneously because the interference to other neighbor cells, so that other business for influenceing network are difficult expansion.In consideration of it, this The frame structure that embodiment is proposed includes DATA1, MA0, MA1 (the first reference signal), MA2 (the second reference signal) and GP (protection Interval), i other words inserting MA1 (the first reference signal) and MA2 behind the pending processing DATA1 of units of data carry (the second reference signal), relative to standard frame as shown in Figure 7a, reference signal is provided with the frame structure of the present embodiment more MA2, reaches after certain value so as to avoid spatial time delay, and the data division for channel estimation is by no longer base station Lead to not signal is measured and parsed within channel estimation window；The data that GP is carried simultaneously are also more, i other words Increased using the covering radius of the system of the frame structure, and by setting the protection interval to avoid to the adjacent up of base station The interference that the contiguous downstream time slot of time slot reception or other-end is received.On this basis, also being defined in the present embodiment is used for The code channel of the hard analogue system of TD-SCDMA network is SF=16 the 1st number road, then corresponding signal processing flow such as Fig. 8 institutes Show.The signal processing method of the present embodiment includes：
S801, the data progress channel estimation received using system equipment side in MA2 theoretical receiving position, are managed By channel estimation results.
Fig. 9 is refer to, the data received by theoretical receiving position in MA2 contains only the transmission of analog transmissions terminal Part MA1 data and part MA2 data.
Theoretical receiving position in the present embodiment refers to the data according to analog transmissions terminal transmission, and corresponding theoretical That extrapolates should receive the position of the reference signal of the first reference signal/second；And actual receiving position refers to actually receive To the position of the reference signal of the first reference signal/second, the actual receiving position can be theoretical receiving position, can also not It is.
S803, finds the peak value footpath of the position of most powerful path, i.e. channel estimation in MA2 paper channel estimated result.This The peak value footpath that signaling channel is estimated in embodiment is at X.
S805, according to the most powerful path position found, calculates starting path position, will obtain MA2 actual receiving position, and Channel estimation is carried out according to the actual receiving position received data, the second actual channel estimated result is obtained.
Generally starting footpath is before most powerful path, because most powerful path position is at X, then can use positions of the X-Y for starting footpath, wherein Y is parameter, and its span is to take Y to be 6 in 0-16, the present embodiment.
S807, according to starting footpath X-Y, calculates the time delay that data are sent to system reception from analog transmissions terminal, this implementation The time delay is X-Y chips in example.
S809, it is from before the signified MA2 times of reception at 128- (X-Y) chip to be inferred to the MA1 data that system-side receives Start, that is, obtain MA1 actual receiving position.
S811, carries out secondary according to the actual receiving position received datas of MA1, i.e. the MA1 data by positioning Channel estimation, obtains the first actual channel estimated result.
S813, according to the correlation of the first actual channel estimated result and the second actual channel estimated result, obtains frequency Believe one side only breath.
The second actual channel estimated result and the first actual channel estimated result are actual for difference 128-X in present embodiment Two groups of channel estimation results of chip, i.e. both correlations reflect the phase difference that frequency deviation is introduced under 128-X chip-spaceds, It is assumed that two groups of channel estimation results phase differences are θ, then phase place is θ/(128-X) caused by the frequency deviation of solid size piece, is designated as Then predetermined phase is
DATA1 data are carried out entangling frequency offset processing, i.e., started with MA1 center by S815 according to the frequency deviation information, Per previous chip, being compensated phase more
A such as chip A before MA1, is compensated phase moreMA1 previous chip B again, relative to chip A phases Many compensation
The data of DATA1 after correction are demodulated by S817 with the first actual channel estimated result.
After certain the present embodiment can also be first demodulated, then carry out entangling frequency deviation, i.e., be changed to from chip-level aspect in symbol Level aspect carries out the correction of frequency deviation.Due to there was only DATA1 parts in the present embodiment, if further comprises in the frame structure of a system DATA2 parts, then according to the principle of present embodiment, tied using the first actual channel estimated result and the estimation of the second actual channel Fruit respectively to after correction/correction before DATA1 and DATA2 data be demodulated.
The signal processing method of the hard analogue system of TD-SCDMA network of the present embodiment, by by the DATA1 in configuration frame After be set to MA0, MA1 and MA2, and by carrying out channel according to the actual receiving position received datas of the MA1 and MA2 Estimation, and frequency deviation information is obtained according to the correlation between two actual channel estimated results, further according to the frequency deviation information to phase The pending data for the units of data carry answered carries out entangling frequency offset processing, so that influence of the frequency deviation to signal is avoided, so as to improve The precision of signal transacting, reducing in the accuracy to the hard analogue system of network, the present embodiment can cause TD-SCDMA to emulate firmly System possesses more than 1000Hz frequency offset processing ability.
Embodiment three：
In present embodiment, uplink downlink have the GSM of reciprocity by least the one of generic frame structure The first precalculated position in individual data cell is provided for the first reference signal and the second reference signal of channel estimation, and will Second precalculated position of latter data cell of two adjacent data cells is provided for the guarantor of the protection of adjacent time-slots Shield interval, then hold in the other positions outside first precalculated position and the second precalculated position of two adjacent data cells Carry pending data.
Based on above-mentioned frame structure, present embodiment, which proposes a kind of uplink downlink, has the mobile communication system of reciprocity The signal processing method and its device of system, are specifically described below in conjunction with specific embodiments and the drawings.
Figure 10 is refer to, is the signal that a kind of uplink downlink of present embodiment has the GSM of reciprocity The structural representation of the another embodiment of processing unit.The signal processing apparatus of present embodiment includes the actual reception of reference signal Position locating module 1001, channel estimation module 1002, frequency deviation information acquisition module 1003 entangle frequency deviation module 1004 and conciliate mode transfer Block 1005, wherein, for two adjacent data cells, the actual receiving position locating module 1001 of reference signal, for positioning The actual receiving position of adjacent respective second reference signal of two data cells；The channel estimation module 1002 and the reference The actual receiving position locating module 1001 of signal is connected, for fixed according to the actual receiving position locating module 1001 of the reference signal The actual receiving position received data of respective second reference signal of adjacent two data unit of position, carries out frequency domain respectively Channel estimation, obtain corresponding 3rd actual channel estimated result and the 4th actual channel estimated result；Frequency deviation information is obtained Module 1003, is connected with channel estimation module 1002, and the 3rd for being obtained according to estimated by the channel estimation module 1002 is real Correlation between border channel estimation results and the 4th actual channel estimated result, obtains frequency deviation information；Frequency deviation module 1004 is entangled, It is connected with the frequency deviation information acquisition module 1003, for the frequency deviation information obtained according to the frequency deviation information acquisition module 1003, point The pending data that other two data cells adjacent to this are each carried carries out entangling frequency offset processing；Demodulation module 1005, with letter Road estimation module 1002 is connected with frequency deviation module 1004 is entangled, for estimating that the obtain the 3rd is real according to the channel estimation module 1002 Border channel estimation results and the 4th actual channel estimated result, respectively to entangling after frequency deviation/entangling two data sheets adjacent before frequency deviation The pending data that member is each carried is demodulated.
Figure 11 is refer to, is the structure of an embodiment of the actual receiving position locating module of reference signal of present embodiment Schematic diagram.The actual receiving position locating module of reference signal of present embodiment includes pre-estimation submodule 1101, changes submodule Block 1102, most powerful path search submodule 1103, starting footpath calculating sub module 1104, and positioning submodule 1105, wherein, pre-estimation The theoretical reception of second reference signal of the data cell that submodule 1101 is used in two adjacent data cells Position received data, carries out the channel estimation of frequency domain, obtains paper channel estimated result；Transform subblock 1102, it is and pre- Estimate that submodule 1101 is connected, during for the pre-estimation submodule 1101 to be estimated into obtained paper channel estimated result is transformed into Domain；Most powerful path searches for submodule 1103, is connected with transform subblock 1102, for after the transform subblock 1102 conversion Paper channel estimated result in, search for corresponding most powerful path position；Footpath calculating sub module 1104 is originated, son is searched for most powerful path Module 1103 is connected, and for searching for the most powerful path position that submodule 1103 is searched for according to the most powerful path, calculates corresponding starting footpath Position；Positioning submodule 1105 is connected with starting footpath calculating sub module 1104, for according to the starting footpath calculating sub module 1104 Calculate obtained starting path position, the time delay of calculating simulation launch terminal to system, and with the analog transmissions terminal to system The actual receiving position of time delay localization adjacent respective second reference signal of two data cells.
The uplink downlink of present embodiment has the signal processing apparatus of the GSM of reciprocity, by reference to The actual receiving position cover half block of signal positions the actual receiving position of adjacent respective second reference signal of two data cells, And received by second reference signal actual receiving position of the channel estimation module respectively in adjacent two data unit Data carry out channel estimation, then two actual channels estimated by frequency deviation information acquisition module according to the channel estimation module are estimated As a result correlation between obtains frequency deviation information, finally by entangling the frequency deviation that frequency deviation module is obtained according to frequency deviation information acquisition module Information carries out entangling frequency deviation to the pending data that the adjacent two data unit is carried respectively, so as to avoid frequency deviation to the shadow of signal Ring, and then improve the precision of signal transacting, reduce the accuracy to the hard analogue system of network.
Based on above-mentioned signal processing apparatus, present embodiment, which additionally provides a kind of uplink downlink, has the shifting of reciprocity The signal processing method of dynamic communication system, is described in detail below in conjunction with specific embodiments and the drawings.
Example IV：
Figure 12 is refer to, is the signal transacting that the uplink downlink of present embodiment has the GSM of reciprocity The flow chart of the another embodiment of method.The signal processing method of present embodiment includes：
S1201, positions the actual receiving position of two reference signals of the respective ground of two adjacent data cells, performs step S1203。
Actual receiving position in present embodiment is that for theoretical receiving position, actual receiving position refers to The position of the reference signal of first reference signal/second is an actually-received, and according to the actual receiving position received data Carry out the as actual channel estimated result that channel estimation is obtained；Theoretical receiving position refers to the transmission according to analog transmissions terminal Information field and correlation theory can calculate that what is obtained should receive the position of the reference signal of the first reference signal/second in theory Put, and the as paper channel estimated result that channel estimation is obtained is carried out according to the theoretical receiving position received data.
Figure 13 is refer to, is the flow chart of the step S1201 of a present embodiment embodiment.The step of present embodiment S1201 includes：
S1301, the theory of the second reference signal of a data cell in two adjacent data cells connects Position received data is received, the channel estimation of frequency domain is carried out, obtains the paper channel estimated result of frequency domain.
S1303, time domain is transformed into by the paper channel estimated result of the frequency domain.
Most powerful path position is found in S1305, paper channel estimated result after conversion.
S1307, according to the most powerful path position, extrapolates starting path position.
S1309, according to the starting path position, calculating obtains analog transmissions terminal to the time delay of system.
S1311, according to the time delay of the analog transmissions terminal to system, positions two adjacent data cells respective respectively The actual receiving position of second reference signal.
Due to two data cells be connected and two data cells itself structure, then when according to the analog transmissions The time delay of terminal to system can be with by after the positioning of the actual receiving position of the second reference signal of corresponding data cell, naturally also Second reference signal of another data cell adjacent thereto is positioned.
S1203, is received according to the actual receiving position of adjacent respective second reference signal of two data cells Data, carry out the channel estimation of frequency domain, obtain the 3rd actual channel estimated result and the 4th actual channel estimated result respectively.
S1205, according to the correlation between the 3rd actual channel estimated result and the 4th actual channel estimated result, is obtained Frequency deviation information.
S1207, the pending data each carried to two adjacent data cells respectively according to the frequency deviation information is carried out Entangle frequency offset processing.
Because a data cell includes at least one symbol, then according to frequency deviation information respectively to two adjacent data lists The step of pending data of member carrying carries out entangling frequency offset processing, including：For a data cell, with the of the data cell Two reference signals start, per previous symbol, and the first predetermined phase is compensated phase more, per latter symbol, and many compensation second are pre- Phase bit, the first predetermined phase and the second predetermined phase here can be obtained according to frequency deviation information.
S1209, according to the first actual channel estimated result and the second actual channel estimated result, respectively to entangling after frequency deviation , the pending data that two adjacent data cells are each carried is demodulated.
Can also be pending to entangle that adjacent two data cell before frequency deviation each carries in certain present embodiment Data carry out entangling frequency deviation again after being demodulated.
The uplink downlink of present embodiment has the signal processing method of the GSM of reciprocity, first basis The theoretical receiving position received data of the second reference signal in a data cell in two adjacent data cells is entered Row channel estimation, two data cells respective second are being positioned according to obtained paper channel estimated result with reference to letter respectively Number actual receiving position, and estimated according to the actual receiving position received data of respective second reference signal to carry out channel Meter, and corresponding actual channel estimated result is obtained, and tied according to the corresponding actual channel estimation of the two second reference signals Correlation between fruit obtains frequency deviation information, further according to the frequency deviation information respectively to the adjacent two data unit carry wait locate Reason data carry out entangling frequency deviation, so as to avoid influence of the frequency deviation to signal, so as to improve the precision of signal transacting, reduce to network The accuracy of hard analogue system.
There is the GSM of reciprocity with reference to specific embodiment to the uplink downlink of present embodiment Signal processing method is described in detail.
It refer to Fig. 14 and Figure 15, the standard subframe structure of respectively current TD-LTE GSMs and this implementation The schematic diagram of the hard analogue system subframe structure of TD-LTE networks in example.By the 6th of time slot in subframe 2 (slot 2) the in the present embodiment Individual symbol is set to GP, for the harmful effect for avoiding producing other cells, can be with if desired covering radius is bigger Slot 2 the 5th symbol even the 4th symbol is further set to GP.Design for RS then can be according to 3GPP TS 5.5.2 chapters and sections generation demodulation reference mark in 36.211, but is mapped on two symbols, by demodulation reference mark when Domain signal repeats twice of (i.e. RS1 and RS2 in Figure 15), and the CP of 288 number of samples is then added before RS1, the CP's Data are identical with the data of 288 number of samples of demodulation reference mark afterbody.Relative to the subframe structure of current standard, this implementation Symbol 3 is set to RS2 by example, is reached so as to avoid spatial time delay after certain value, the data for channel estimation Part will lead to not measure signal and parse within the channel estimation window of no longer base station；Symbol 5 and 6 is set in addition GP is set to, so as to avoid the interference to other neighbor cells.
According to the hard analogue system of network the data volume transmitted can be needed to carry out ascending resource distribution in the present embodiment, it is assumed that Continuous M subcarrier is assigned with, then corresponding signal processing flow is as shown in figure 16：
S1601, the data received using system equipment side in the 3rd character position of slot 1 (i.e. RS2 theoretical positions) The channel estimation of frequency domain is carried out, corresponding paper channel estimated result is obtained.
S1603, time domain is transformed into by the paper channel estimated result.
S1605, finds the position of most powerful path, i.e. channel estimation in the present embodiment in the paper channel estimated result of time domain Peak value footpath at X.
S1607, take X-Y for starting path position, wherein Y be 1 parameter, can value be 6, so as to obtain the actual received bits of RS2 Put.
S1609, is inferred to data according to starting path position and is sent to system from analog transmissions terminal to receive time delay X-Y codes Piece.
S1611, the data received according to the RS2 of the slot 1 actual receiving position carry out the channel estimation of frequency domain, obtain Estimate to tie to the 3rd actual channel estimated result, and using the 3rd actual channel estimated result as slot 1 reference channel Really.
S1613, similarly obtains slot 2 RS2 channel estimation results, and the channel is estimated using the data by positioning Result is counted as slot 2 reference channel estimated result.
S1615, because step S1611 and step S1613 two non-slotted channel estimated results are actual for the difference 0.5ms times Two groups of channel estimation results, both correlations reflect frequency deviation in the introduced phase difference in 0.5ms intervals, it is assumed that two groups of letters Road estimated result phase difference is θ, then pair symbol adjacent with the 3rd symbol is introduced (164+2048) θ/(30720* by frequency deviation 0.5) phase difference, is designated asThenFor the first predetermined phase,For the second predetermined phase.
The data of other symbols are carried out entangling frequency offset processing, i.e., with the 3rd by S1617 using step S1615 frequency deviation information The beginning of symbol, per previous symbol, is compensated more phaseAnd per latter symbol, phase then more to be compensated
S1619, with the 3rd actual channel estimated result and the 4th actual channel estimated result respectively to adjacent slot1 and Data after being rectified a deviation in slot2 are demodulated.
The signal processing method of the hard analogue system of network of the present embodiment, first according in adjacent slot1 and slot2 The theoretical receiving position received data of RS2 in slot1 carries out channel estimation, according to obtained paper channel estimated result To position the respective RS2 of the slot1 and slot2 actual receiving position respectively, and according to respective RS2 actual receiving position institute The data of reception carry out channel estimation, and obtain corresponding actual channel estimated result, and according to the two second with reference to believing Correlation between number corresponding actual channel estimated result obtains frequency deviation information, adjacent to this respectively further according to the frequency deviation information Slot1 and slot2 carrying pending data carry out entangle frequency deviation, i.e., started with the respective RS2 of the slot1/slot2, often before One symbol, is compensated phase morePer latter symbol, being compensated phase moreI.e. the present embodiment actually make use of TD-LTE frames The characteristics of 1ms subframes of structure contain two 0.5ms time slots, frequency is sought using the RS2 channel estimation results in two 0.5ms time slots Partially, carry out entangling frequency deviation further according to the frequency deviation information, so that influence of the frequency deviation to signal is avoided, so as to improve the essence of signal transacting Degree, reduces the accuracy to the hard analogue system of network.
In this certain specific embodiment, RS1 the and RS2 channel estimation results in 0.5ms time slots can also be used to obtain frequency Believe one side only breath to carry out corresponding correction processing, its realization principle is identical with the principle for implementing two.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to assert this hair Bright specific implementation is confined to these explanations.For general technical staff of the technical field of the invention, do not taking off On the premise of from present inventive concept, some simple deduction or replace can also be made, the protection of the present invention should be all considered as belonging to Scope.

Claims (15)

1. a kind of uplink downlink has the signal processing method of the GSM of reciprocity, it is characterised in that will be described Uplink downlink has first at least one data cell of the generic frame structure of the GSM of reciprocity to make a reservation for Position is provided for the first reference signal and the second reference signal of channel estimation, and described the first of the data cell makes a reservation for Pending data is carried in other positions outside position；By the second pre-determined bit of at least one data cell of the frame structure Put the protection interval for being provided for the protection to adjacent time-slots；For a data cell, including：
Position the actual receiving position of first reference signal and the second reference signal；
According to first reference signal and the actual receiving position received data of the second reference signal, channel is carried out respectively Estimation, respectively obtains corresponding first actual channel estimated result and the second actual channel estimated result；
According to the correlation between the first actual channel estimated result and the second actual channel estimated result, frequency deviation letter is obtained Breath；
The pending data of the units of data carry is carried out entangling frequency offset processing according to the frequency deviation information.
2. the method as described in claim 1, it is characterised in that the reality of positioning first reference signal and the second reference signal The step of border receiving position, including：
Channel estimation is carried out according to the theoretical receiving position received data of second reference signal, paper channel is obtained and estimates Count result；
Most powerful path position is found in the paper channel estimated result；
According to the most powerful path position, starting path position is extrapolated；
Calculated according to the starting path position and obtain analog transmissions terminal to the time delay of system；
According to the time delay of the analog transmissions terminal to system, first reference signal and the second reference signal are respectively obtained Actual receiving position.
3. method as claimed in claim 1 or 2, the data cell includes multiple chips, it is characterised in that according to the frequency The step of breath that believes one side only carries out entangling frequency offset processing to the pending data of the units of data carry, including：With the described first reference The center of signal starts, and per previous chip, compensates predetermined phase more.
4. method as claimed in claim 1 or 2, it is characterised in that according to the frequency deviation information to one data cell The pending data of carrying entangle after frequency offset processing, in addition to step：
According to the first actual channel estimated result and/or the second actual channel estimated result, to entangling described one after frequency deviation The pending data of individual units of data carry is demodulated.
5. the method as described in claim 1, it is characterised in that also including by adjacent two data of the generic frame structure Second precalculated position of latter data cell of unit is set to protection interval.
6. method as claimed in claim 5, it is characterised in that for two adjacent data cells, the signal transacting side Method includes：
Position the actual receiving position of respective second reference signal of the adjacent two data unit；
According to the actual receiving position received data of respective second reference signal of the adjacent two data unit, difference The channel estimation of frequency domain is carried out, the 3rd actual channel estimated result and the 4th actual channel estimated result is obtained；
According to the correlation between the 3rd actual channel estimated result and the 4th actual channel estimated result, frequency deviation letter is obtained Breath；
The pending data each carried to described two data cells respectively according to the frequency deviation information carries out entangling frequency offset processing.
7. method as claimed in claim 6, it is characterised in that respective second ginseng of positioning two adjacent data cells The step of examining the actual receiving position of signal, including：
The theoretical receiving position institute of the second reference signal in a data cell in described two adjacent data cells The data of reception, carry out the channel estimation of frequency domain, obtain the paper channel estimated result of frequency domain；
The paper channel estimated result of the frequency domain is transformed into time domain；
Most powerful path position is found in the paper channel estimated result after conversion；
According to the most powerful path position, starting path position is extrapolated；
Calculated according to the starting path position and obtain analog transmissions terminal to the time delay of system；
According to the time delay of the analog transmissions terminal to system, described two adjacent data cells respective second are respectively obtained The actual receiving position of reference signal.
8. method as claimed in claims 6 or 7, one data cell includes at least one symbol, it is characterised in that root The step of carrying out entangling frequency offset processing to the pending data that described two adjacent data cells are carried respectively according to the frequency deviation information, Including：For a data cell, started with the second reference signal of the data cell, per previous symbol, compensated phase more First predetermined phase, per latter symbol, the second predetermined phase of many compensation.
9. method as claimed in claims 6 or 7, it is characterised in that according to the frequency deviation information respectively to described two data After the step of pending data that unit is each carried carries out entangling frequency offset processing, including：Estimated according to the 3rd actual channel Result and the 4th actual channel estimated result are counted, respectively to entangling after frequency deviation, what two adjacent data cells were each carried treats Processing data is demodulated.
10. a kind of uplink downlink has the signal processing apparatus of the GSM of reciprocity, it is characterised in that on described Downlink has the first pre-determined bit at least one data cell of the generic frame structure of the GSM of reciprocity Put second in the first reference signal and the second reference signal for being provided for channel estimation, at least one described data cell Precalculated position is provided for the protection interval of the protection to adjacent time-slots, first precalculated position of the data cell and Pending data is carried in other positions outside second precalculated position, the signal processing apparatus includes：Reference signal is actual Receiving position locating module, channel estimation module, frequency deviation information acquisition module and frequency deviation module is entangled, wherein, for each number According to unit, the actual receiving position locating module of reference signal, for positioning first reference signal and the second reference signal Actual receiving position；
Channel estimation module, is connected with the actual receiving position locating module of the reference signal, for according to the reference signal The number that first reference signal of actual receiving position locating module positioning and the actual receiving position of the second reference signal are received According to carrying out channel estimation respectively, obtain corresponding first actual channel estimated result and the second actual channel estimated result；
Frequency deviation information acquisition module, is connected with the channel estimation module, for being obtained according to channel estimation module estimation The first actual channel estimated result and the second actual channel estimated result between correlation, obtain frequency deviation information；
Frequency deviation module is entangled, and the frequency deviation information acquisition module, for the frequency deviation obtained according to the frequency deviation information acquisition module Information, the pending data to one units of data carry carries out entangling frequency offset processing.
11. signal processing apparatus as claimed in claim 10, it is characterised in that the actual receiving position positioning of reference signal Module includes pre-estimation submodule, most powerful path search submodule, starting footpath calculating sub module and positioning submodule, wherein,
The pre-estimation submodule, is believed for the theoretical receiving position received data according to second reference signal Road is estimated, obtains paper channel estimated result；
The most powerful path searches for submodule, is connected with the pre-estimation submodule, in the paper channel estimated result Search most powerful path position；
Starting footpath calculating sub module, submodule is searched for the most powerful path, for the most powerful path position obtained according to search Calculating obtains originating path position；
The positioning submodule, is connected with starting footpath calculating sub module, for inferring depanning according to the starting path position Intend launch terminal to the time delay of system, and actually connecing with the first reference signal described in the time delay localization and the second reference signal Receive position.
12. the device as described in claim 10 or 11, it is characterised in that also including demodulation module, with the channel estimation mould Block is connected with the frequency deviation module of entangling, for estimating that obtained first actual channel is estimated according to the channel estimation module As a result and/or the second actual channel estimated result, respectively to entangling after frequency deviation/entangling one units of data carry before frequency deviation The pending data is demodulated.
13. a kind of uplink downlink has the signal processing apparatus of the GSM of reciprocity, it is characterised in that on described Downlink has the first pre-determined bit at least one data cell of the generic frame structure of the GSM of reciprocity Put the first reference signal and the second reference signal for being provided for channel estimation, the latter number of adjacent two data cells The protection interval of the protection of adjacent time-slots, two adjacent data cells are provided for according to the second precalculated position of unit First precalculated position and the second precalculated position outside other positions on carry pending data, the signal processing device Put including the actual receiving position locating module of reference signal, channel estimation module, frequency deviation information acquisition module and entangle frequency deviation module, Wherein, for two adjacent data cells,
The reference signal is actual to receive locating module, for positioning respective second reference of two adjacent data cells The actual receiving position of signal；
The channel estimation module is connected with the actual receiving position locating module of the reference signal, for according to described adjacent two The actual receiving position received data of individual respective second reference signal of data cell, the channel that frequency domain is carried out respectively is estimated Meter, obtains corresponding 3rd actual channel estimated result and the 4th actual channel estimated result；
The frequency deviation information acquisition module, is connected with the channel estimation module, for being estimated according to the channel estimation module The correlation between obtained the 3rd actual channel estimated result and the 4th actual channel estimated result is counted, frequency deviation letter is obtained Breath；
It is described to entangle frequency deviation module, it is connected with the frequency deviation information acquisition module, for being obtained according to the frequency deviation information acquisition module The frequency deviation information arrived, the pending data each carried to the adjacent two data unit respectively carries out entangling frequency offset processing.
14. signal processing apparatus as claimed in claim 13, it is characterised in that the actual receiving position positioning of reference signal Module includes pre-estimation submodule, transform subblock, most powerful path search submodule, starting footpath calculating sub module and positioning submodule Block, wherein,
The pre-estimation submodule, the second reference for a data cell in two adjacent data cells The theoretical receiving position received data of signal, carries out the channel estimation of frequency domain, obtains paper channel estimated result；
The transform subblock, is connected with the pre-estimation submodule, for the theoretical letter for estimating the pre-estimation submodule Road estimated result is transformed into time domain；
The most powerful path searches for submodule, is connected with the transform subblock, for the institute after transform subblock conversion State in paper channel estimated result, search most powerful path position；
The starting footpath calculates search, is connected with most powerful path search submodule, for searching for submodule according to the most powerful path The most powerful path position that block is searched, calculates starting path position；
The positioning submodule, is connected with starting footpath calculating sub module, based on according to starting footpath calculating sub module Obtained starting path position, calculating obtains analog transmissions terminal to the time delay of system, and with adjacent described in the time delay localization The actual receiving position of respective second reference signal of data cell of two.
15. the device as described in claim 13 or 14, it is characterised in that also including demodulation module, with the channel estimation mould Block is connected with the frequency deviation module of entangling, for estimating that obtained the 3rd actual channel is estimated according to the channel estimation module As a result with the 4th actual channel estimated result, respectively to entangling after frequency deviation/entangling the adjacent two data unit before frequency deviation each The pending data of carrying is demodulated.
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107645352B (en) * 2016-07-22 2019-06-11 华为技术有限公司 A kind of transmission method and device of uplink reference signals
CN114499641A (en) * 2022-01-25 2022-05-13 中国科学院微小卫星创新研究院 Time delay correction method for satellite remote docking

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010021520A2 (en) * 2008-08-22 2010-02-25 엘지전자 주식회사 Method for transmitting synchronization channels
CN101754230A (en) * 2008-12-17 2010-06-23 华为技术有限公司 Carrier polymerizing method in FDD system and device thereof
CN101808409A (en) * 2010-04-01 2010-08-18 中兴通讯股份有限公司 Method and system for configuration of measurement reference signals in LTE-A system
CN102065557A (en) * 2010-12-31 2011-05-18 中兴通讯股份有限公司 Method and system for sending sounding reference signal (SRS) used in coordinated multi-point (CoMP) transmission system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102238606B (en) * 2010-04-30 2016-03-30 中兴通讯股份有限公司 A kind of signal processing method based on frame structure extension and system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010021520A2 (en) * 2008-08-22 2010-02-25 엘지전자 주식회사 Method for transmitting synchronization channels
CN101754230A (en) * 2008-12-17 2010-06-23 华为技术有限公司 Carrier polymerizing method in FDD system and device thereof
CN101808409A (en) * 2010-04-01 2010-08-18 中兴通讯股份有限公司 Method and system for configuration of measurement reference signals in LTE-A system
CN102065557A (en) * 2010-12-31 2011-05-18 中兴通讯股份有限公司 Method and system for sending sounding reference signal (SRS) used in coordinated multi-point (CoMP) transmission system

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