CN101656580B - Processing method and device of full rate speech - Google Patents
Processing method and device of full rate speech Download PDFInfo
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- CN101656580B CN101656580B CN 200810214404 CN200810214404A CN101656580B CN 101656580 B CN101656580 B CN 101656580B CN 200810214404 CN200810214404 CN 200810214404 CN 200810214404 A CN200810214404 A CN 200810214404A CN 101656580 B CN101656580 B CN 101656580B
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Abstract
The invention discloses a processing method and a device of full rate speech. The method comprises the followings: in an interleaving cycle, a base station subsystem modulates the full rate speech information of the downgoing burst period by high-order modulation and Gauss-filtered minimum shift keying modulation, and the modulated speech information of more than one user is carried in a wireless time slot containing the burst period and is sent to a mobile station. One interleaving cycle contains 8 burst periods. By adopting the modulation mode of mixing 8 phase shift keying and Gauss-filtered minimum shift keying, the invention can modulate the downgoing full rate speech information of more than one user in an interleaving cycle, thereby increasing the GSM network speech capacity without increasing the demands for equipment and frequency resources and further lowering the cost and saving the frequency resources.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of disposal route and device of full-speed voice.
Background technology
At existing global system for mobile communications (Global System for MobileCommunications, referred to as GSM) in, portable terminal (Mobile Station, referred to as MS) and base station sub-system (Base Station Subsystem, referred to as BSS) between exist air interface (namely, Um Interface), this air interface adopts the mode of time division multiple access (TDMA) (TimeDivision Multiple Access is referred to as TDMA) to work.
Under the TDMA mode, each carrier wave is divided into a plurality of time slots and occurs in the mode of circulation in time domain, and each time slot is made of a series of bursts (Burst Period is referred to as BP), 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 is referred to as GMSK), sends MS to by Um Interface.Take GSM full-rate codes voice as example, Fig. 1 is the structural representation through the burst within the cycle that interweaves after the GMSK modulation, as shown in Figure 1, because the modulation rate of GMSK is lower, therefore, in a burst, can only carry a user's voice messaging.
Increase along with GSM user, in order to meet consumers' demand, the GSM carrier need to dispose more GSM equipment, but the user telephone fee that operator collects does not increase along with the increase of number of users, like this, can cause the loss of operator, in addition, increasing GSM equipment need to take more frequency resource, has therefore restricted the development of speech business.
Summary of the invention
Consider exist in the correlation technique cause the frequency resource demand many owing to rolling up equipment, and the problem that cost is high and propose the present invention, for this reason, fundamental purpose of the present invention is to provide a kind of disposal route and device of full-speed voice, to address the above problem.
A kind of disposal route of full-speed voice is provided according to an aspect of the present invention.
Disposal route according to full-speed voice of the present invention: within the cycle that interweaves, base station sub-system adopts high-order modulating and Gaussian Minimum Shift-frequency Keying modulation system that full-speed voice information is modulated to descending burst, and the voice messaging more than a user after will modulating is carried in the wireless time slot that comprises burst and sends to portable terminal, wherein, comprise 8 bursts in the cycle that interweaves.
Wherein, above-mentioned high-order modulating is 8 phase-shift keying (PSK) modulation systems.
Wherein, base station sub-system is adopted the processing that high-order modulating and Gaussian Minimum Shift-frequency Keying modulation system modulate full-speed voice information to descending burst and is specially: for first group of burst in the cycle that interweaves, base station sub-system adopts the Gaussian Minimum Shift-frequency Keying modulation system to carry out the modulation of full-speed voice information, for second group of burst in this cycle that interweaves, base station sub-system adopts 8 phase-shift keying (PSK) modulation systems to carry out the modulation of full-speed voice information, wherein, first group of burst and second group of burst comprise respectively 4 bursts.
Wherein, with representing that with numbering 1-8 burst 1,3,5,7 is used for carrying user 1 voice messaging, burst 2,4,6,8 is used for carrying user 2 voice messaging to above-mentioned 8 bursts successively.
Preferably, first group of burst and second group of burst are to be respectively one of front 4 bursts in interweaving the cycle and rear 4 bursts.
Wherein, the interweave symbol after 4 bursts are with same speech frame modulation in the cycle is inserted the data field of the opposition side of training sequence.
Preferably, 8 bursts that interweave in the cycle are divided into 4 pairs in turn, and represent with numbering 0-3, and first group of burst and second group of burst are respectively one of the 0th pair and the 2nd pair of burst, the 1st pair and the 3rd pair burst.
Wherein, the interweave symbol after 2 bursts are with same speech frame modulation in the cycle is inserted the data field of the opposition side of training sequence.
Wherein, after the voice messaging more than a user after will modulating was carried at and sends to portable terminal in this burst, the method further comprises: portable terminal was resolved to the received signal, therefrom obtains the voice messaging for portable terminal.
A kind for the treatment of apparatus of full-speed voice is provided according to another aspect of the present invention.
Treating apparatus according to full-speed voice of the present invention comprises: modulation module, be used within the cycle that interweaves, adopt high-order modulating and Gaussian Minimum Shift-frequency Keying modulation system that full-speed voice information is modulated to descending burst, wherein, comprise 8 bursts in the cycle that interweaves; Sending module, the voice messaging more than a user after being used for modulating is carried at a wireless time slot that comprises burst and sends to portable terminal.
By above-mentioned at least one technical scheme of the present invention, by the modulation system of utilizing octaphase-shift keying and Gaussian Minimum Shift-frequency Keying to mix mutually, can within the cycle that interweaves, modulate the descending full-speed voice information more than a user, thereby can be under the demand that does not increase equipment and frequency resource, 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 instructions, 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 instructions of writing, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide a further understanding of the present invention, and consists of the part of instructions, is used for together with embodiments of the present invention explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the burst structural representation that carries a user speech information according to the GSM full-rate codes voice messaging of correlation technique within the cycle that interweaves;
Fig. 2 is the first structural representation according to burst in the cycle that interweaves of the embodiment of the invention;
Fig. 3 is the second structural representation according to burst in the cycle that interweaves of the embodiment of the invention;
Fig. 4 is the third structural representation according to burst in the cycle that interweaves of the embodiment of the invention;
Fig. 5 is the 4th kind of structural representation according to burst in the cycle that interweaves of the embodiment of the invention;
Fig. 6 is the structural representation according to the treating apparatus of the full-speed voice of the inventive method embodiment.
Embodiment
Functional overview
The embodiment of the invention is for GSM (global system for mobile communications) user's rapid increase, the demand that needs the voice capacity of raising GSM network, a kind of processing scheme of full-speed voice has been proposed, in the technical scheme that the embodiment of the invention provides, BSS utilizes octaphase-shift keying (8PSK) and Gaussian Minimum Shift-frequency Keying (GMSK) that the full-speed voice information of each descending burst is modulated, 3 bits because each symbol of 8PSK can be encoded, therefore, can only carry a user's the needed information bit of voice with the part burst in this cycle that interweaves, and the voice messaging more than a user after will modulating is carried in the wireless time slot and sends to MS.
Describe the present invention in detail below in conjunction with accompanying drawing.
Embodiment of the method
According to the embodiment of the invention, a kind of disposal route of full-speed voice of sequential interleaved is provided, utilize the method, a plurality of users' voice messaging can be carried on the identical single wireless time slot.
Disposal route according to the full-speed voice of the sequential interleaved of the embodiment of the invention comprises: within the cycle that interweaves, base station sub-system adopts high-order modulating and Gaussian Minimum Shift-frequency Keying modulation system that full-speed voice information is modulated to descending burst, and the voice messaging more than a user after will modulating is carried in the wireless time slot that comprises this burst and sends to portable terminal, wherein, comprise 8 bursts in the cycle that interweaves.
Pass through technique scheme, the modulation system of utilizing octaphase-shift keying and Gaussian Minimum Shift-frequency Keying to mix mutually, can within the cycle that interweaves, modulate the descending full-speed voice information more than a user, thereby can be under the demand that does not increase equipment and frequency resource, improve GSM voice-over-net capacity, thereby reduced cost, saved frequency resource.
BSS (base station sub-system) is before MS (portable terminal) transmitting voice information, to modulate voice messaging first, in embodiments of the present invention, BSS adopts 8PSK modulation mode and GMSK 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, adopt the two mode of mixing mutually that GSM full-speed voice information is modulated, a more than user's voice messaging can be carried in the same cycle that interweaves, thereby be implemented in the voice messaging that carries a plurality of users on the identical single wireless time slot.
In specific implementation process, BSS inserts the data field of burst by the voice messaging more than a user after will modulating, thereby realizes that a wireless time slot carries the voice messaging more than a user.
Because BSS is carried at a plurality of users' voice messaging in the same wireless time slot and sends to MS, therefore, MS resolves to the received signal receiving behind the signal after 8PSK and the GMSK modulation, therefrom obtains the voice messaging for itself.
The hybrid mode within the cycle that interweaves for 8PSK and GMSK, at first 8 bursts in the cycle that interweaves are divided into two groups, every group comprises 4 bursts, for first group of burst, base station sub-system can adopt the Gaussian Minimum Shift-frequency Keying modulation system to carry out the modulation of full-speed voice information, and for second group of burst, base station sub-system can adopt 8 phase-shift keying (PSK) modulation systems to carry out the modulation of full-speed voice information, particularly, can be divided into following dual mode:
One: the first group of burst of mode can be front 4 bursts in the cycle that interweaves, and second group of burst can be rear 4 bursts in the cycle that interweaves; Perhaps, first group of burst can be rear 4 bursts in the cycle that interweaves, and second group of burst can be front 4 bursts in the cycle that interweaves.
Mode two: 8 bursts in the cycle that will interweave are divided into 4 pairs in turn, and represent that with numbering 0-3 wherein first group of burst is the 0th pair and the 2nd pair of burst, and second group of burst is the 1st pair and the 3rd pair of burst; Perhaps, first group of burst is the 1st pair and the 3rd pair of burst, and second group of burst is the 0th pair and the 2nd pair of burst.
For the ease of understanding, the below respectively embodiment of the disposal route of the full-speed voice that the embodiment of the invention provided as example of the scene in Fig. 2, Fig. 3, Fig. 4 and Fig. 5 describes.
Example one
Present embodiment is described as an example of scene shown in Figure 2 example, and in Fig. 2, the length in the cycle that interweaves is 8, and as shown in Figure 2, the implementation flow process 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 (burst 1), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 1 to carry user 1 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 (burst 2), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 2 to carry user 2 the needed information bit of voice.
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 (burst 3), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 3 to carry user 1 the needed information bit of voice.
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 (burst 4), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 4 to carry user 2 the needed information bit of voice.
Step 205: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 5th burst (burst 5), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 5 to carry user 1 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 201.
Step 206: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 6th burst (burst 6), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 6 to carry user 2 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation 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 GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 7th burst (burst 7), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 7 to carry user 1 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation 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 GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 8th burst (burst 8), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 8 to carry user 2 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 204.
Example two
Present embodiment is described as an example of scene shown in Figure 3 example, and in Fig. 3, the length in the cycle that interweaves is 8, and as shown in Figure 3, the implementation flow process of this embodiment comprises:
Step 301: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending first burst (burst 1), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 1 to carry user 1 the needed information bit of voice.
Step 302: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending second burst (burst 2), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 2 to carry user 2 the needed information bit of voice.
Step 303: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 3rd burst (burst 3), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 3 to carry user 1 the needed information bit of voice.
Step 304: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 4th burst (burst 4), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 4 to carry user 2 the needed information bit of voice.
Step 305: 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 5th burst (burst 5), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 5 to carry user 1 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 301.
Step 306: 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 6th burst (burst 6), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 6 to carry user 2 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 302.
Step 307: 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 7th burst (burst 7), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 7 to carry user 1 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 303.
Step 308: 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 8th burst (burst 8), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 8 to carry user 2 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 304.
Example three
Present embodiment is described as an example of scene shown in Figure 4 example, and in Fig. 4, the length in the cycle that interweaves is 8, and as shown in Figure 4, the implementation flow process of this embodiment comprises:
Step 401: 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 (burst 1), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 1 to carry user 1 the needed information bit of voice.
Step 402: 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 (burst 2), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 2 to carry user 2 the needed information bit of voice.
Step 403: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 3rd burst (burst 3), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 3 to carry user 1 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after will modulate in this step is inserted respectively the data field of training sequence both sides, the symbol after same speech frame is modulated to insert the position opposite with step 401.
Step 404: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 4th burst (burst 4), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 4 to carry user 2 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after will modulate in this step is inserted respectively the data field of training sequence both sides, the symbol after same speech frame is modulated to insert the position opposite with step 402.
Step 405: 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 5th burst (burst 5), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 5 to carry user 1 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 403.
Step 406: 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 6th burst (burst 6), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 6 to carry user 2 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 404.
Step 407: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 7th burst (burst 7), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 7 to carry user 1 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 405.
Step 408: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 8th burst (burst 8), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 8 to carry user 2 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 406.
Example four
Present embodiment is described as an example of scene shown in Figure 5 example, and in Fig. 5, the length in the cycle that interweaves is 8, and as shown in Figure 5, the implementation flow process of this embodiment comprises:
Step 501: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending first burst (burst 1), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 1 to carry user 1 the needed information bit of voice.
Step 502: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending second burst (burst 2), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 2 to carry user 2 the needed information bit of voice.
Step 503: 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 (burst 3), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 3 to carry user 1 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after will modulate in this step is inserted respectively the data field of training sequence both sides, the symbol after same speech frame is modulated to insert the position opposite with step 501.
Step 504: 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 (burst 4), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 4 to carry user 2 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after will modulate in this step is inserted respectively the data field of training sequence both sides, the symbol after same speech frame is modulated to insert the position opposite with step 502.
Step 505: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 5th burst (burst 5), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 5 to carry user 1 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 503.
Step 506: in the length of GSM full-speed voice coding is cycle that interweaves of 8, adopt GMSK modulation mode that GSM full-speed voice coding cell is modulated to descending the 6th burst (burst 6), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 6 to carry user 2 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 504.
Step 507: 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 7th burst (burst 7), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 7 to carry user 1 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 505.
Step 508: 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 8th burst (burst 8), symbol after the modulation is inserted respectively the data field of training sequence both sides, and utilize burst 8 to carry user 2 the needed information bit of voice.For the multipath in the anti-as far as possible wireless relay weak, when the symbol after the modulation is inserted respectively the data field of training sequence both sides, the symbol after the same speech frame modulation to insert the position opposite with step 506.
Device embodiment
According to the embodiment of the invention, provide a kind for the treatment of apparatus of full-speed voice.
Fig. 6 shows the treating apparatus synoptic diagram according to the full-speed voice of the embodiment of the invention, and as shown in Figure 6, this device comprises:
Sending module 64, the voice messaging more than a user after being used for modulating is carried at burst and sends to portable terminal, and this module can be connected to modulation module 62.
As mentioned above, in embodiments of the present invention, adopt 8PSK mode and GMPK mode that full-speed voice information is modulated to each descending burst, therefore 3 bits because each symbol of 8PSK can be encoded can be carried at the voice messaging more than a user after the modulation and send to MS in the burst.Thereby the technical scheme by the embodiment of the invention provides can improve GSM voice-over-net capacity, thereby reduce cost under the demand that does not increase equipment and frequency resource, has saved frequency resource.
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 modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the disposal route of a full-speed voice is characterized in that, comprising:
Within the cycle that interweaves, base station sub-system adopts high-order modulating and Gaussian Minimum Shift-frequency Keying modulation system that full-speed voice information is modulated to descending burst, and the voice messaging more than a user after will modulating is carried in the wireless time slot that comprises described burst and sends to portable terminal, wherein, comprise 8 bursts in the described cycle that interweaves.
2. method according to claim 1 is characterized in that, described high-order modulating comprises 8 phase-shift keying (PSK) modulation systems.
3. method according to claim 2 is characterized in that, described base station sub-system is specially the processing that descending burst adopts high-order modulating and Gaussian Minimum Shift-frequency Keying modulation system that full-speed voice information is modulated:
For first group of burst in the described cycle that interweaves, described base station sub-system adopts the Gaussian Minimum Shift-frequency Keying modulation system to carry out the modulation of full-speed voice information, for second group of burst in this cycle that interweaves, described base station sub-system adopts 8 phase-shift keying (PSK) modulation systems to carry out the modulation of full-speed voice information, wherein, described first group of burst and described second group of burst comprise respectively 4 bursts.
4. method according to claim 3, it is characterized in that, with representing that with numbering 1-8 described burst 1,3,5,7 is used for carrying user 1 voice messaging, described burst 2,4,6,8 is used for carrying user 2 voice messaging to described 8 bursts successively.
5. method according to claim 4 is characterized in that, described first group of burst and described second group of burst are respectively described one of front 4 bursts in the cycle and rear 4 bursts of interweaving.
6. method according to claim 5 is characterized in that, the symbol in the described cycle that interweaves after 4 bursts are with same speech frame modulation is inserted the data field of the opposition side of training sequence.
7. method according to claim 4, it is characterized in that, 8 bursts in the described cycle that interweaves are divided into 4 pairs in turn, and 0-3 represents with numbering, and described first group of burst and described second group of burst are respectively one of the 0th pair and the 2nd pair of burst, the 1st pair and the 3rd pair burst.
8. method according to claim 7 is characterized in that, the symbol in the described cycle that interweaves after 2 bursts are with same speech frame modulation is inserted the data field of the opposition side of training sequence.
9. each described method in 8 according to claim 1 is characterized in that after the voice messaging more than a user after will modulating was carried at and sends to portable terminal in this burst, described method further comprised:
Described portable terminal is resolved to the received signal, therefrom obtains the voice messaging for described portable terminal.
10. the treating apparatus of a full-speed voice is characterized in that, comprising:
Modulation module was used within the cycle that interweaves, and adopted high-order modulating and Gaussian Minimum Shift-frequency Keying modulation system that full-speed voice information is modulated to descending burst, wherein, comprised 8 bursts in the described cycle that interweaves;
Sending module, the voice messaging more than a user after being used for modulating is carried at a wireless time slot that comprises described burst and sends to portable terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810214404 CN101656580B (en) | 2008-08-22 | 2008-08-22 | Processing method and device of full rate speech |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810214404 CN101656580B (en) | 2008-08-22 | 2008-08-22 | Processing method and device of full rate speech |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101656580A CN101656580A (en) | 2010-02-24 |
| CN101656580B true CN101656580B (en) | 2013-03-20 |
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| CN1391752A (en) * | 1999-11-19 | 2003-01-15 | 艾利森电话股份有限公司 | Method and system for blind detection of modulation |
| CN101180846A (en) * | 2005-03-22 | 2008-05-14 | 高通股份有限公司 | Detection of signal modulation format type |
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| CN1391752A (en) * | 1999-11-19 | 2003-01-15 | 艾利森电话股份有限公司 | Method and system for blind detection of modulation |
| CN101180846A (en) * | 2005-03-22 | 2008-05-14 | 高通股份有限公司 | Detection of signal modulation format type |
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