CN1604513A - A method for playing variable sound in CDMA system - Google Patents

Abstract

The invention relates to a method for playing variable sound in a CDMA system. A method for playing variable tone in a CDMA system, applicable to the CDMA system with ANNCODE bearing playback parameters, characterized in that it comprises: a. in the voice parameter bearing part of ANNCODE, increasing the variable tone parameter; b. when When the MSC receives the ANNCODE, it performs the playback process of the variable tone according to the indication of the variable tone parameter. The technical scheme of the present invention makes it easier for operators to carry out characteristic services, and there is no need to add new IEs or messages in the messages, but within the scope allowed by the protocol, the customized tone part of ANNCODE is extended so that it can carry variable tone parameter.

Description

A method of playing variable tone in CDMA system

technical field

The invention relates to the communication field, in particular to a method for playing variable sound in a CDMA system.

technical background

CDMA is the second-generation cellular mobile communication technology. As shown in Figure 1, it is a schematic diagram of the network of the CDMA system. Among them, MSC/SSP is the core control device of the CDMA network, and it is to realize basic functions such as user call connection, call control and service realization. control center.

As can be seen from the figure, it mainly includes:

HLR: Home Location Register, the central database of the CDMA system, stores the relevant information of all existing mobile users controlled by the HLR, including the basic information when the user opens an account (including the relevant information of the user's subscription to various services).

SCP: service control point, query user's business data, and provide intelligent business logic processing for calls;

MSC/SSP: The mobile switching center MSC is the core of the entire CDMA network, coordinating and controlling each functional entity in the entire CDMA network. The service switching point SSP is integrated in the MSC, accepts the service logic control of the SCP, and completes the triggering and execution of the specific process of the intelligent service and the migration of the call state;

BSS: Base station subsystem, which is directly connected to the mobile station through a wireless interface, and is responsible for wireless transmission and reception and management of wireless resources. It is connected with MSC through A interface to realize the communication connection between mobile users or between mobile users and fixed network users, and transmit system information and user information, etc.

MS: mobile terminal. CDMA mobile phone, vehicle mobile station, etc.

In the CDMA system, technical concepts such as variable tone, fixed tone, and customized tone are involved, among which:

Variable sound: For example, the playback of time and date is variable sound, HH hour MM minute SS second, these HH/MM/SS are constantly changing, only the hour, minute and second are fixed, for example, it is now 12:31:10, after a while it will be 12:40:43, and this type of playback is called variable sound.

Fixed tone: For example, "Sorry, the user you are calling has turned off the phone, please dial later." We call this kind of constant tone playback.

Customized tone: customized tone is relative to the signal tone and standard tone defined in the standard protocol. Comply with it, and the customized tone is defined by the operator itself. The same customized tone code may be played differently on different operator networks. Generally speaking, signal tones, standard tones, and customized tones are all fixed tones.

In the CDMA system, IEs (information units) that can carry playback parameters include ANNCODE (notification tone) and EXESCR (playback execution script). Among them, ANNCODE can include Tone tone (signal tone), Standard Announcement tone (standard tone), Custom Announcement tone (customized tone), and does not include the part of putting variable tone. EXESCR can contain Custom Announcement sound (customized sound) and variable sound. However, EXESCR IE generally appears in intelligent business processes, so it is difficult to implement variable-tone playback in non-intelligent service playback, but operators often need variable-tone playback when launching their own unique services. If EXESCR IE is used If variable voice is carried, the business process will be complicated, the development workload will be greatly increased, the service launch cycle will be longer, and the maintenance cost will be higher.

Using the EXESRC IE (ExecuteScript parameter) defined in the current Is771 protocol can carry variable tone parameters, but this IE only appears in the intelligent business process, and needs the support of intelligent network equipment, while the non-intelligent business playback parameter is generally ANNCODE , but ANNCODE does not define how to carry variable sounds.

As shown in FIG. 2, it is a description of related parameters of EXESCR in the existing protocol.

As shown in FIG. 3 , it is a description of related parameters of ANNCODE in the existing protocol.

As shown in the following table, it is a description of the relevant parameters of ANNCODE in the existing protocol. Specifically:

ANNCODE structure: logo length content

Content structure: h G f E. D. C B A byte signal tone 1 reserved part playback category 2 standard tone 3 Customized voice 4～n

A/B/C/D/E/F/G/H in the table represent 8 bits of a byte, A represents the first bit, B represents the second bit, and so on.

Although the EXESCR IE can be used to bear the variable tone, there are disadvantages: the IE is not included in the message of the non-intelligent business process, so that most services cannot use the IE to play the variable tone.

Contents of the invention

The purpose of the present invention is to provide a special service, under the premise of complying with the protocol specification, there is no need to add IE, no need to add or modify the service process in the service message, and only the operator needs to expand and define the customized voice part to carry the message. Variation parameters, and play the method of variable voicing.

For this reason the present invention adopts following technical scheme:

A method for playing variable sound in a CDMA system, applicable to the CDMA system carrying the play parameters with ANNCODE, comprising:

a. In the voice parameter bearing part of ANNCODE, increase the bearing variable tone parameter;

b. When the MSC receives the ANNCODE, it performs the playback process of the variable tone according to the indication of the variable tone parameter.

The variable tone parameters include business key parameters, variable tone type parameters and variable tone content parameters;

The business key parameters identify different services;

The variable tone type parameter identifies the type message of the variable tone carried;

The variable tone content parameter identifies information on the number of bytes occupied by the variable tone.

Described step b further comprises:

b1. MSC analyzes the service key parameters to determine the service type;

b2. Applying the corresponding structural format according to the business key to perform decoding processing to obtain variable sound type parameters and variable sound content parameters;

b3. Organizing playback processing according to the decoded playback information.

The voice parameter bearing part also includes fixed tone parameters.

The technical scheme of the present invention makes it easier for operators to carry out characteristic services, and there is no need to add new IEs or messages in the messages, but within the scope allowed by the protocol, the customized tone part of ANNCODE is extended so that it can carry variable tone parameter. At the same time, when providing new services, the workload of equipment manufacturers will be greatly reduced; in addition, the present invention can also shorten the launch cycle of characteristic services.

Description of drawings

Fig. 1 is the structural representation of CDMA system in the prior art;

Fig. 2 is a schematic diagram of related parameter specification of EXESCR in the prior art protocol.

Fig. 3 is a schematic diagram of related parameter specification of ANNCODE in the prior art protocol.

Detailed ways

Specific embodiments of the present invention will be described below.

The field of customized tone is defined in the agreement. Specifically, how many bytes this field includes, what is its content and what is its meaning? This field is not included in the agreement, but is left to the operator to define, but generally the operator only uses this field for Carry fixed tone information, and the present invention proposes that this field can also carry variable tone information, and can bring convenience for opening some special services. We envisage extending ANNCODE's customized audio part so that it can carry variable audio, so that it does not require complex intelligent audio playback processes and intelligent network equipment support and does not violate the agreement.

The invention expands the customized tone part of ANNCODE so that it can carry variable tone parameters.

The ANNCODE structure is shown in Figure 3, where we need to expand the Custom Announcement part.

Its expansion method can be decided by the operator itself, and now we list one of them:

The Custom Announcement section is structured as follows: business key 1 Voice parameter bearer part 2～n

Different services are distinguished according to different service keys. Different services may have different structures of voice parameter bearing parts. Currently, we divide them into two categories: those with variable voice and those without variable voice.

The structure of the voice parameter carrying part without variable tone is: h G f E. D. C B A byte High bit of fixed tone parameter code 1 Low bit of fixed tone parameter code 2

The result of the speech parameter bearing part with variable tone is: h G f E. D. C B A byte Steady tone 1～2 first variable voice type 3 Variable part 4～m-1 second variable voice type m Variable part m～n-1  … ...

Among them, the fixed tone occupies two bytes, and the structure is: h G f E. D. C B A byte High bit of fixed tone parameter code 1 Low bit of fixed tone parameter code 2

The variable tone type occupies one byte. The maximum number of variable sounds that can be supported is determined by the operator. The definition of the variable tone type can also be determined by the operator. The number of bytes of each type of variable tone part is also determined by the operator. OK, here's just an example:

Variable tone type, 6 types of variable tone:

Number Number Number 1

Integer Integer 2

Date Date Date 3

Time Time Time 4

Amount Price 5

Duration Duration 6

For example: when playing an integer, the variable tone part is a 4-byte integer.

When playing digital, the variable tone part is an 8-byte BCD coded array (16 numbers in total).

When playing the date, the variable tone part is a 4-byte BCD coded array (8 numbers in total).

When playing time, the variable voice part is a 4-byte BCD coded array (8 numbers in total).

When playing the amount, the variable tone part is an 8-byte BCD coded array (16 numbers in total).

When playing the duration (DURATION), the variable tone part is a 4-byte BCD coded array.

For different businesses, the following examples can be given as examples:

When the service is number change notification tone, its customized tone can be defined as

The Custom Announcement section is structured as follows:

Business key --- Byte 1

Fixed tone---Byte 2～3

Variable sound --- byte 4 ~ 11

When the service is password access

The Custom Announcement section is structured as follows:

Business key --- Byte 1

Fixed tone---Byte 2～3

After the present invention adopts the above-mentioned expanded protocol content, the MSC system is as follows to the processing process of the ANNCODE customized voice part bearing information:

First, analyze the business key parameters, and determine the business type according to the business key parameters;

Secondly, apply the corresponding structural format according to the business key to perform decoding processing, and obtain variable tone type parameters and variable tone content parameters;

Finally, the playback process is organized according to the decoded playback information.

The present invention only affects the content of the sound playback, and does not affect other business process processing.

The beneficial effects brought by the technical solution of the present invention:

1) It is easier for operators to develop special services. There is no need to add IE or message in the message, but within the scope allowed by the agreement, the customized tone part of ANNCODE is extended so that it can carry variable tone parameters;

2) When providing new services, the workload of equipment manufacturers will be greatly reduced;

3) It can shorten the launch cycle of characteristic services.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of changes or modifications within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (4)

1, the method for playing variable sound in a kind of CDMA system, is applicable to the CDMA system with ANNCODE carrying the play parameter, it is characterized in that comprising: a. In the voice parameter bearing part of ANNCODE, increase the bearing variable tone parameter; b. When the MSC receives the ANNCODE, it performs the playback process of the variable tone according to the indication of the variable tone parameter. 2. The method according to claim 1, characterized in that said variable tone parameters include service key parameters, variable tone type parameters and variable tone content parameters; The business key parameters identify different services; The variable tone type parameter identifies the type message of the variable tone carried; The variable tone content parameter identifies information on the number of bytes occupied by the variable tone. 3. The method according to claim 2, characterized in that said step b further comprises: b1. MSC analyzes the service key parameters to determine the service type; b2. Applying the corresponding structural format according to the business key to perform decoding processing to obtain variable sound type parameters and variable sound content parameters; b3. Organizing playback processing according to the decoded playback information. 4. The method according to claim 2, characterized in that the voice parameter bearing part further includes fixed tone parameters.