CN101346005A - Processing method and apparatus for full-speed voice - Google Patents
Processing method and apparatus for full-speed voice Download PDFInfo
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- CN101346005A CN101346005A CNA2008102130625A CN200810213062A CN101346005A CN 101346005 A CN101346005 A CN 101346005A CN A2008102130625 A CNA2008102130625 A CN A2008102130625A CN 200810213062 A CN200810213062 A CN 200810213062A CN 101346005 A CN101346005 A CN 101346005A
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Abstract
The invention provides a full-speed speech processing method and apparatus. In the method, base station sub-system modulates the full-speed speech information adopting eight phase shift keying modulating mode to downward outburst pulses, and the modulated speech information having more than one user is sent to the mobile terminal hidden in the outburst pulses. The technical scheme in the invention can improve GSM network speech capacity while adding no equipment or frequency resource need, consequently, reduces cost and saves frequency resource.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of processing method and device of full-speed voice.
Background technology
At existing global system for mobile communications (Global System for MobileCommunications, abbreviate GSM as) in, portable terminal (Mobile Station, abbreviate MS as) and base station sub-system (Base Station Subsystem, abbreviate BSS as) between exist air interface (promptly, Um Interface), this air interface adopts the mode of time division multiple access (TimeDivision Multiple Access abbreviates TDMA as) to work.
Under the TDMA mode, each carrier wave is divided into a plurality of time slots and takes place in the mode that circulates on time domain, and each time slot is made of a series of bursts (Burst Period abbreviates BP as), and each BP accounts for 15/26ms (about 577us).The descending voice messaging of BSS is carried on the burst of each time slot after modulating through Gaussian Minimum Shift-frequency Keying (Gauss-filtered Minimum Shift Keying abbreviates GMSK as), sends MS to by Um Interface.With GSM full-rate codes voice is example, Fig. 1 is the structural representation through the burst of GMSK modulation back in the cycle that interweaves, as shown in Figure 1, because the modulation rate of GMSK is lower, therefore, in a burst, can only carry a user's voice information.
At present, GSM user is in rapid increase in the global range, owing to can only carry a user's voice information in a burst, so GSM carrier's investment of having to disposes more GSM equipment, to satisfy the needs that the GSM number of users increases.But every user's telephone expenses incomes is not followed the growth of number of users and is grown simultaneously, the contradiction between the equipment investment that has therefore caused operator's great number and every user's the telephone expenses income minimizing.And, owing to disposed more GSM equipment, therefore, also more and more to demands for frequency resources.
Summary of the invention
In view of this, the invention provides a kind of processing method and device of full-speed voice of sequential interleaved, cause the frequency resource demand many owing to rolling up equipment in order to solve in the prior art, and the high problem of cost.
According to one aspect of the invention, provide a kind of processing method of full-speed voice.
Processing method according to full-speed voice provided by the invention comprises: base station sub-system adopts the octaphase-shift keying modulation system that full-speed voice information is modulated to descending burst, and being carried at more than a user's voice information after will modulating sends to portable terminal in the burst.
Preferably, the information bit that belongs to same speech frame after base station sub-system will be modulated is inserted the data field of homonymy of the training sequence of burst.
And in the cycle that interweaves, every the burst of predetermined quantity, the information bit that base station sub-system will belong to same speech frame is inserted the data field of the opposition side of training sequence.
Preferably, the above-mentioned cycle that interweaves is 8, and predetermined quantity is 4, the described information bit that belongs to same speech frame is inserted the data field of the opposition side of training sequence every 4 bursts.
Preferably, the above-mentioned cycle that interweaves is 8, and predetermined quantity is 2, and the information bit that will belong to same speech frame every 2 bursts is inserted the data field of the opposition side of training sequence.
Preferably, after will modulating more than a user's voice information be carried at send to portable terminal in this burst after, said method further comprises: portable terminal is resolved to the received signal, therefrom obtains the voice messaging at portable terminal.
A kind of processing unit of full-speed voice is provided according to another aspect of the present invention.
Processing unit according to full-speed voice provided by the invention comprises: modulating unit is used for adopting the octaphase-shift keying modulation system that full-speed voice information is modulated to descending burst; Transmitting element is used for being carried at burst more than a user's voice information and sending to portable terminal after the modulation.
Preferably, above-mentioned processing unit also comprises: interleaving block, be used in the cycle that interweaves, and every the burst of predetermined quantity, the position of inserting that will belong to the information bit of same speech frame changes opposite side into by training sequence one side.
By above-mentioned at least one technical scheme of the present invention, by utilizing the octaphase-shift keying modulation system, the descending full-speed voice information more than a user is modulated, make and on identical single time slot, can carry a plurality of user's voice information, thereby can not increase under equipment and the demands for frequency resources, improve GSM voice-over-net capacity, thereby reduced cost, saved frequency resource.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation according to burst in the cycle that interweaves of prior art;
Fig. 2 is a kind of structural representation according to burst in the cycle that interweaves of the embodiment of the invention;
Fig. 3 is the another kind of structural representation according to burst in the cycle that interweaves of the embodiment of the invention;
Fig. 4 is the structural representation according to the processing unit of a kind of full-speed voice of the embodiment of the invention.
Embodiment
Functional overview
The embodiment of the invention is at GSM user's rapid increase, the demand that needs the voice capacity of raising GSM network, a kind of processing scheme of full-speed voice of sequential interleaved has been proposed, in the technical scheme that the embodiment of the invention provides, BSS utilizes octaphase-shift keying (8PhaseShift Keying, abbreviate 8PSK as) the full-speed voice information of each descending burst is modulated, 3 bits because each symbol of 8PSK can be encoded, therefore, being carried at more than a user's voice information after the modulation can be sent to MS in the burst.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
According to the embodiment of the invention, a kind of processing method of full-speed voice of sequential interleaved at first is provided, utilize this method, can be on identical single wireless time slot with a plurality of user's voice information-bearings.
Processing method according to the full-speed voice of the sequential interleaved of the embodiment of the invention comprises: BSS adopts 8PSK modulation mode that descending full-speed voice information is modulated, and sends to MS more than a user's voice information-bearing on identical single time slot after will modulating.
BSS is before the MS transmitting voice information, to modulate voice messaging earlier, in embodiments of the present invention, BSS adopts 8PSK modulation mode that the GSM full-speed voice information of descending each pulse is modulated, because the modulation rate of 8PSK modulation mode is three times of GMSK, therefore, can will be carried in the same burst, thereby can be implemented in a plurality of user's voice information of carrying on the identical single wireless time slot more than a user's voice information.
In specific implementation process, BSS is by inserting the data field of burst more than a user's voice information after will modulating, thereby realizes that a burst carries more than a user's voice information.In a burst, the data field is in the both sides of training sequence, and therefore, the information bit that belongs to same speech frame after BSS will modulate is inserted the data field of burst homonymy.
In order to make information transmitted resist the multipath in the wireless relay weak as far as possible, in specific implementation process, can change the position of information bit in different bursts of same speech frame, promptly in the cycle that interweaves, burst every predetermined quantity, the information bit that will belong to same speech frame is inserted the data field of the opposition side of training sequence (promptly every the burst of predetermined quantity, changing the once position of information bit in burst of same speech frame).
In specific implementation process, the length of above-mentioned predetermined quantity can be carried out as the case may be, and wherein, predetermined quantity can be 2 or 4.Below in conjunction with Fig. 2 and Fig. 3 to describing the position of inserting of cycle internal information bit in burst that interweaves in the embodiment of the invention.
With the length in the cycle that interweaves is 8 to be example, in Fig. 2, above-mentioned predetermined number is 4, promptly in preceding 4 bursts the information bit of same speech frame to insert the position identical, and in ensuing other 4 bursts, the position opposite of the position that the information bit of same speech frame is inserted and preceding 4 bursts (promptly being positioned at the opposite side of training sequence), as shown in Figure 2, speech frame one is positioned at the upside (or be called at training sequence left side) of training sequence among the figure in preceding 4 bursts, in back 4 bursts, be positioned at the downside (or be called at training sequence right side) of training sequence, and speech frame two is positioned at the downside (or be called at training sequence right side) of training sequence in preceding 4 bursts, is positioned at the upside (or be called at training sequence left side) of training sequence in back 4 bursts.In specific implementation process, above-mentioned predetermined number also can be for 2 (as shown in Figure 3), and the information bit that belongs to same voice card changes every 2 bursts once inserts the position.Certainly, in specific implementation process, above-mentioned predetermined number also can be for other be worth, and it implements principle and above-mentioned roughly the same, does not repeat them here.
Because BSS is carried at a plurality of user's voice information in the same burst and sends to MS, therefore, MS resolves to the received signal receiving behind the signal after the 8PSK modulation, therefrom obtains the voice messaging at itself.
For the ease of understanding, describe with the embodiment of the processing method of the full-speed voice of the sequential interleaved that to be example provide the embodiment of the invention of the scene among Fig. 2 and Fig. 3 respectively below.
Embodiment one
Present embodiment is that example is described with scene shown in Figure 2, and in Fig. 2, the length in the cycle that interweaves is 8, and the information bit of same speech frame changes every 4 bursts once inserts the position.As shown in Figure 2, the concrete implementing procedure of this embodiment comprises:
Step 201: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8PSK modulation mode that GSM full-speed voice coding cell is modulated to descending first burst (being the burst 1 among Fig. 2), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1, user 2 and user's 3 the needed information bit of voice.
Step 202: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8PSK modulation mode that GSM full-speed voice coding cell is modulated to descending second burst (being the burst 2 among Fig. 2), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1 and the voice needed information bit of user 2 with user 3.
Step 203: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8PSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 3rd burst (being the burst 3 among Fig. 2), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1 and the voice needed information bit of user 2 with user 3.
Step 204: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8PSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 4th burst (being the burst 4 among Fig. 2), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1 and the voice needed information bit of user 2 with user 3.
Step 205: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8P SK modulation system that GSM full-speed voice coding cell is modulated to descending the 5th burst (being the burst 5 among Fig. 2), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1, with user 2 and user's 3 the needed information bit of voice.
In order to resist the multipath in the wireless relay weak as far as possible, when the symbol after will modulating in this step is inserted the data field of training sequence both sides respectively, the information bit of each speech frame insert position opposite with step 201 (information bit that promptly belongs to same speech frame lays respectively at the both sides of training sequence in burst 1 and burst 5).
Step 206: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8P SK modulation system that GSM full-speed voice coding cell is modulated to descending the 6th burst (being the burst 6 among Fig. 2), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1, the needed information bit of user 2 and user's 3 voice, and when the symbol after will modulating is inserted the data field of training sequence both sides respectively, the information bit of each speech frame to insert the position opposite with step 202.
Step 207: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8P SK modulation system that GSM full-speed voice coding cell is modulated to descending the 7th burst (being the burst 7 among Fig. 2), symbol after the modulation is inserted the data field of training sequence both sides respectively, carry user 1 and the voice needed information bit of user 2 with this burst with user 3, and when the symbol after will modulating is inserted the data field of training sequence both sides respectively, the information bit of each speech frame to insert the position opposite with step 203.
Step 208: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8P SK modulation system that GSM full-speed voice coding cell is modulated to descending the 8th burst (being the burst 8 among Fig. 2), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1 and the voice needed information bit of user 2 with user 3.And when the symbol after will modulating is inserted the data field of training sequence both sides respectively, the information bit of each speech frame to insert the position opposite with step 204.
Embodiment two
Present embodiment is that example is described with scene shown in Figure 3, and in Fig. 3, the length in the cycle that interweaves is 8, and the information bit of same speech frame changes every 2 bursts once inserts the position.As shown in Figure 3, the concrete implementing procedure of this embodiment comprises:
Step 301: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8PSK modulation mode that GSM full-speed voice coding cell is modulated to descending first burst (being the burst 1 among Fig. 3), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1 and the voice needed information bit of user 2 with user 3.
Step 302: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8PSK modulation mode that GSM full-speed voice coding cell is modulated to descending second burst (being the burst 2 among Fig. 3), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1 and the voice needed information bit of user 2 with user 3.
Step 303: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8P SK modulation system that GSM full-speed voice coding cell is modulated to descending the 3rd burst (being the burst 3 among Fig. 3), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1 and the voice needed information bit of user 2 with user 3, and, when the symbol after will modulating is inserted the data field of training sequence both sides respectively, the information bit of each speech frame to insert the position opposite with step 301.
Step 304: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8P SK modulation system that GSM full-speed voice coding cell is modulated to descending the 4th burst (being the burst 4 among Fig. 3), symbol after the modulation is inserted the data field of training sequence both sides respectively, carry user 1 and the voice needed information bit of user 2 with this burst with user 3, and when the symbol after will modulating is inserted the data field of training sequence both sides respectively, the information bit of each speech frame to insert the position opposite with step 302.
Step 305: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8P SK modulation system that GSM full-speed voice coding cell is modulated to descending the 5th burst (being the burst 5 among Fig. 3), symbol after the modulation is inserted the data field of training sequence both sides respectively, carry user 1 and the voice needed information bit of user 2 with this burst with user 3, and when the symbol after will modulating is inserted the data field of training sequence both sides respectively, the information bit of each speech frame to insert the position opposite with step 303.
Step 306: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8P SK modulation system that GSM full-speed voice coding cell is modulated to descending the 6th burst (being the burst 6 among Fig. 3), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1 and the voice needed information bit of user 2 with user 3, and when the symbol after will modulating is inserted the data field of training sequence both sides respectively, the information bit of each speech frame to insert the position opposite with step 304.
Step 307: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8P SK modulation system that GSM full-speed voice coding cell is modulated to descending the 7th burst (being the burst 7 among Fig. 3), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1 and the voice needed information bit of user 2 with user 3, and when the symbol after will modulating is inserted the data field of training sequence both sides respectively, the information bit of each speech frame to insert the position opposite with step 305.
Step 308: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt 8P SK modulation system that GSM full-speed voice coding cell is modulated to descending the 8th burst (being the burst 8 among Fig. 3), symbol after the modulation is inserted the data field of training sequence both sides respectively, wherein, this burst can carry user 1 and the voice needed information bit of user 2 with user 3, and when the symbol after will modulating is inserted the data field of training sequence both sides respectively, the information bit of each speech frame to insert the position opposite with step 306.
According to the embodiment of the invention, also provide a kind of processing unit of full-speed voice.
Fig. 4 is the structural representation according to the processing unit of the full-speed voice of the embodiment of the invention, and as shown in Figure 4, the processing unit of the full-speed voice of the embodiment of the invention comprises: modulating unit 42 and transmitting element 44.Below further combined with accompanying drawing above-mentioned each unit is described.
Modulating unit 42 is used for adopting the octaphase-shift keying modulation system that full-speed voice information is modulated to descending burst;
Transmitting element 44 is connected with modulating unit 42, is used for being carried at described burst more than a user's voice information and sending to portable terminal after the modulation.
Further, weak in order to reduce the multipath of signal in radio transmission, processing unit according to the full-speed voice of the embodiment of the invention also comprises: the interleave unit (not shown), this interleave unit was used in the cycle that interweaves, every the burst of predetermined quantity, the position of inserting that will belong to the information bit of same speech frame changes opposite side into by a side of training sequence.
As mentioned above, in embodiments of the present invention, adopt the 8PSK mode that full-speed voice information is transferred to each descending burst, therefore 3 bits because each symbol of 8PSK can be encoded can send to MS with being carried at more than a user's voice information after the modulation in the burst.Thereby the technical scheme by the embodiment of the invention provides can not increase under equipment and the demands for frequency resources, improves GSM voice-over-net capacity, thereby has reduced cost, has saved frequency resource.And, because the embodiment of the invention is in the cycle that interweaves,, change the position of information bit in burst that once belongs to same speech frame every the burst of predetermined quantity, therefore, can resist in the radio transmission multipath weak.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the processing method of a full-speed voice is characterized in that, comprising:
Base station sub-system adopts the octaphase-shift keying modulation system that full-speed voice information is modulated to descending burst, and being carried in the described burst more than a user's voice information after will modulating sends to portable terminal.
2. method according to claim 1 is characterized in that, being carried in this burst more than a user's voice information after described will the modulation specifically comprises:
After will modulating, described base station sub-system inserts the data field of described burst more than a user's voice information.
3. method according to claim 2 is characterized in that, the data field of inserting described burst more than a user's voice information after described base station sub-system will be modulated specifically comprises:
The information bit that belongs to same speech frame after described base station sub-system will be modulated is inserted the data field of homonymy of the training sequence of described burst.
4. method according to claim 3 is characterized in that, also comprises:
In the cycle that interweaves,, the described information bit that belongs to same speech frame is inserted the data field of the opposition side of training sequence every the burst of predetermined quantity.
5. method according to claim 4 is characterized in that, the described cycle that interweaves is 8, and described predetermined quantity is 4, the described information bit that belongs to same speech frame is inserted the data field of the opposition side of training sequence every 4 bursts.
6. method according to claim 4 is characterized in that, the described cycle that interweaves is 8, and described predetermined quantity is 2, the described information bit that belongs to same speech frame is inserted the data field of the opposition side of training sequence every 2 bursts.
7. method according to claim 1 is characterized in that, after will modulating more than a user's voice information be carried at send to portable terminal in this burst after, described method further comprises:
Described portable terminal is resolved to the received signal, therefrom obtains the voice messaging at described portable terminal.
8. the processing unit of a full-speed voice is characterized in that, comprising:
Modulating unit is used for adopting the octaphase-shift keying modulation system that full-speed voice information is modulated to descending burst;
Transmitting element is used for being carried at described burst more than a user's voice information and sending to portable terminal after the modulation.
9. processing unit according to claim 8 is characterized in that, this processing unit also comprises:
Interleaving block was used in the cycle that interweaves, and every the burst of predetermined quantity, the position of inserting that will belong to the information bit of same speech frame changes opposite side into by training sequence one side.
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| CNA2008102130625A CN101346005A (en) | 2008-08-19 | 2008-08-19 | Processing method and apparatus for full-speed voice |
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| CNA2008102130625A CN101346005A (en) | 2008-08-19 | 2008-08-19 | Processing method and apparatus for full-speed voice |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109074802A (en) * | 2016-12-30 | 2018-12-21 | 谷歌有限责任公司 | The modulation of packetizing audio signal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109074802A (en) * | 2016-12-30 | 2018-12-21 | 谷歌有限责任公司 | The modulation of packetizing audio signal |
| CN109074802B (en) * | 2016-12-30 | 2023-08-08 | 谷歌有限责任公司 | Modulation of packetized audio signals |
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Application publication date: 20090114 |