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Processing method and device of full rate speech

A processing method and full-rate technology, applied in the field of communication, can solve the problems of high cost and high demand for frequency resources, and achieve the effects of reducing costs, saving frequency resources, and improving voice capacity

Inactive Publication Date: 2013-03-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Considering the problems in the related art that there is a large demand for frequency resources and high cost due to a large increase in equipment, the present invention is proposed. Therefore, the main purpose of the present invention is to provide a full-rate voice processing method and device to solve the above problems

Method used

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  • Processing method and device of full rate speech
  • Processing method and device of full rate speech
  • Processing method and device of full rate speech

Examples

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example 1

[0042] This embodiment takes figure 2 The scenario shown is described as an example, in figure 2 In , the length of the interleaving cycle is 8, such as figure 2 As shown, the specific implementation process of this embodiment includes:

[0043] Step 201: the length of the GSM full-rate speech coding is an interleaving period of 8, the downlink first burst pulse (burst pulse 1) is modulated by 8PSK modulation to the GSM full-rate speech coding cell, and the modulated The last symbols are respectively filled in the data areas on both sides of the training sequence, and burst 1 is used to carry the information bits required by user 1's voice.

[0044] Step 202: the length of the GSM full-rate speech coding is an interleaving cycle of 8, the second downlink burst (burst 2) is modulated by 8PSK modulation to the GSM full-rate speech coding cell, and the modulated The last symbols are respectively filled in the data areas on both sides of the training sequence, and burst 2 is...

example 2

[0052] This embodiment takes image 3 The scenario shown is described as an example, in image 3 In , the length of the interleaving cycle is 8, such as image 3 As shown, the specific implementation process of this embodiment includes:

[0053] Step 301: the length of the GSM full-rate speech coding is an interleaving cycle of 8, adopting the GMSK modulation mode to modulate the GSM full-rate speech coding cell to the downlink first burst pulse (burst pulse 1), and modulate The last symbols are respectively filled in the data areas on both sides of the training sequence, and burst 1 is used to carry the information bits required by user 1's voice.

[0054] Step 302: the length of the GSM full-rate speech coding is an interleaving period of 8, the second downlink burst (burst 2) is modulated by the GMSK modulation mode to the GSM full-rate speech coding cell, and the modulated The last symbols are respectively filled in the data areas on both sides of the training sequence,...

example 3

[0062] This embodiment takes Figure 4 The scenario shown is described as an example, in Figure 4 In , the length of the interleaving cycle is 8, such as Figure 4 As shown, the specific implementation process of this embodiment includes:

[0063] Step 401: the length of the GSM full-rate speech coding is an interleaving period of 8, the downlink first burst pulse (burst pulse 1) is modulated by 8PSK modulation to the GSM full-rate speech coding cell, and the modulated The last symbols are respectively filled in the data areas on both sides of the training sequence, and burst 1 is used to carry the information bits required by user 1's voice.

[0064] Step 402: the length of the GSM full-rate speech coding is an interleaving period of 8, the second downlink burst (burst 2) is modulated by 8PSK modulation to the GSM full-rate speech coding cell, and the modulated The last symbols are respectively filled in the data areas on both sides of the training sequence, and burst 2 i...

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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 wirelesstime 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 withoutincreasing the demands for equipment and frequency resources and further lowering the cost and saving the frequency resources.

Description

technical field [0001] The present invention relates to the communication field, in particular to a full-rate voice processing method and device. Background technique [0002] In the existing Global System for Mobile Communications (GSM for short), there is an air interface between a mobile terminal (Mobile Station, MS for short) and a Base Station Subsystem (BSS for short). , Um interface), the air interface works in a Time Division Multiple Access (TDMA for short) manner. [0003] In the TDMA mode, each carrier is divided into multiple time slots in the time domain and occurs in a cyclic manner. Each time slot is composed of a series of burst pulses (Burst Period, referred to as BP), and each BP occupies 15 / 26ms (about 577us). The downlink voice information of the BSS is modulated by Gauss-filtered Minimum Shift Keying (GMSK for short), carried on the burst of each time slot, and transmitted to the MS through the Um interface. Taking GSM full-rate coded speech as an ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L19/16H04L1/00
Inventor 王欣晖
Owner ZTE CORP
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