KR19980057384A - Voice Paging Service using Code Division Multiple Access (CDMA) Single Expert Service - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a voice paging service method in a voice paging system.

2. The technical problem to be solved by the invention

The present invention provides a voice paging service method for performing a voice paging service (CDMA) using a code division multiple access (CDMA) short message service (SMS) in a voice paging system.

3. Summary of Solution to Invention

The present invention provides a voice paging service by transmitting a voice paging message to a callee in the form of code division multiple access (CDMA) short message service (SMS) through a traffic channel of a mobile communication system in a voice paging system. Service, greatly improving the restriction of expression and convenience of use compared to the conventional wireless calling service, and subscribers can use high value-added services such as one-way mobile phone service at low cost, and do not use mobile phone subscriber number at all. Voice paging subscribers can be accommodated without consuming.

4. Important uses of the invention

Used for voice paging service.

Description

Voice Paging Service using Code Division Multiple Access (CDMA) Single Expert Service

The present invention provides a voice paging service using a code division multiple access (CDMA) short message service (SMS) in a voice paging system such as a mobile communication network, a wireless call network, and a short message center (SMC). The present invention relates to a voice paging service method for performing a voice paging service.

First, terms used in the present invention are defined as follows.

The voice paging service is a radio calling service in which the caller's voice is delivered to the called party's terminal via the voice paging system. Receiving a specific code promised instead of voice data to play a formal sentence embedded in the terminal or a simple numeric message by voice is defined as not a voice paging service.

Code Division Multiple Access (CDMA) Single Expert Service uses a Store and Forward function and a control channel and call channel of a Code Division Multiple Access (CDMA) mobile communication system. It is a service that can exchange short text message between message input device.

The service identification number assigns the first digit as the service identification number in the 8-digit radio paging subscriber numbering system to identify the voice paging service subscriber.

Representative wireless calling services currently provided by wireless call operators include numeric paging for receiving numeric messages, alphanumeric paging for receiving simple text messages, and simple voice messages within 30 seconds. There is a voice mail service (VMS).

However, the number and problem paging is extremely limited in the expression of the call message, especially in the case of text paging, because the use of a personal computer (PC) or the help of a dedicated operator (operator) for the convenience of using the service In addition, the voicemail service has to call and listen to the voicemail directly to check the voice message left by the callee, so it is not only hassle to make a call, but the mobile subscriber has to go to the place where the phone is located. There was a lot of inconvenience.

In order to solve the above problems, the present invention provides a call paging message to a callee in the form of Code Division Multiple Access (CDMA) Short Message Service (SMS) through a traffic channel of a mobile communication system. By performing the voice paging service by transmitting, it greatly improves the restriction of expression and convenience of use compared to the conventional paging service, and subscribers can use high value-added services such as one-way mobile phone service at low cost. Another object of the present invention is to provide a voice paging service method capable of accommodating voice paging subscribers without consuming mobile telephone subscriber numbers.

1 is a configuration diagram of a voice paging system to which the present invention is applied;

2 is an explanatory diagram for assigning a service identification number according to the present invention;

3 is a flowchart illustrating a voice paging service method according to an embodiment of the present invention;

4 is a flowchart illustrating a voice paging service method according to another embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

101: telephone, 102: general public telephone network, 103: wireless calling network, 104: voice mail system, 105: home location register, 106: mobile switching center, 107: single professional center, 108: mobile switching center, 109: base station, 110 : Mobile communication network, 111: Voice paging mobile terminal, 112: Voice paging terminal

One embodiment of the present invention for achieving the above object is, in the voice paging service (Voice Paging Service) method applied to the voice paging system, when the caller is connected to the voice mailbox system via a public public telephone network and a wireless call network In the voicemail system, receiving a voice paging message from a caller, compressing and storing the voice paging message, and then requesting the voice paging message to be transmitted to an SCM; The single specialized center determines the current location of the subscriber through the home location register (HLR), receives the voice paging message from the voice mailbox system, formats it into a single specialized service format, and then traffics to the visitor mobile exchange where the current subscriber is located. A second step of requesting channel (call channel) allocation; And assigning a traffic channel (call channel) at the visitor mobile switching center, and transmitting the voice paging message of the single-specialty service puncturing to the subscriber station through the assigned traffic channel (call channel) via the visitor mobile switching center. It includes a third step.

In addition, another embodiment of the present invention, in the voice paging service (Voice Paging Service) method applied to the voice paging system, if the caller dials the representative number to connect to the voice mailbox system via the public public telephone network and the mobile switchboard In the voicemail system, a first step of receiving a called number and a voice paging message, compressing / stored, and requesting delivery of a voice paging message to an SCM; In the single specialized center, the current location of the subscriber is determined through the home location register (HLR), and the voice paging message is received from the voice mailbox system, formatted into a single specialized service format, and then traffic is transmitted to the visitor mobile exchange in which the current subscriber is located. A second step of requesting channel (call channel) allocation; And assigning a traffic channel (call channel) at the visitor mobile switching center, and transmitting the voice paging message in the form of a single professional service to the subscriber station through the assigned traffic channel (call channel) via the visitor mobile switching center. It includes a third step.

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention;

1 is a configuration diagram of a voice paging system to which the present invention is applied. In the drawing, reference numeral 101 is a telephone, 102 is a public public telephone network, 103 is a wireless call network, 104 is a voice mail system, 105 is a home location register, and 106 is a mobile switchboard. 107 is a single specialized center, 108 is a visited mobile switching center, 109 is a base station, 110 is a mobile communication network, 111 is a voice paging combined mobile terminal, 112 is a voice paging dedicated terminal, and FIG. 2 is a service identification number according to the present invention. It is explanatory drawing about allocation.

First, referring to the voice paging service method proposed in the present invention, there are two methods as shown in Table 1 below.

[Table 1] Voice Paging Service Method

In the first method, a caller accesses a code division multiple access (CDMA) mobile communication network 110 via a wireless call network 103 and connects to a code division multiple access (CDMA) mobile communication network 110 through a call channel (traffic channel). It is a voice paging service that delivers voice paging messages to the called party in the form of a single professional service (SMS), and can accept subscribers who want to use only voice paging service without consuming an existing mobile phone number. You can connect directly to the called party without using it.

In the second method, the voice paging service is added to the mobile phone service. Therefore, the mobile phone service is used to access the called party through the representative number without using an additional subscriber number. (111) is used.

As such, in the second method, since the voice paging service is added to the mobile phone, the mobile phone subscriber number can be used as it is without requiring a separate subscriber number for the voice paging service.

However, the first method requires a separate subscriber number, which is not much free from the current 7-digit mobile telephone subscriber number system. Therefore, in the present invention, a voice paging-only subscriber is accommodated using a radio calling subscriber numbering system extended to 8 digits (station number 4 digits). That is, a method of allocating the first one of the extended station number 4 digits as a service identification number (for voice paging service) is shown in FIG.

However, in the current mobile communication network 110, since the network identification numbers (011, 017) are unconditionally added to the subscriber number, the subscriber number is actually processed by 10 digits. Therefore, X assigned to the service identification number must be deleted and handed over to the mobile communication network 110 after the service identification in the wireless call network 103, and the network identification number must be added.

In addition, the subscriber number embedded in the ROM of the terminal should also be 10 digits excluding the service identification number (X). That is, when the caller calls the subscriber through the public public telephone network (PSTN) 102, it becomes 11 digits (012-Xabc-defg), and the autonomous registration (CDMA) is performed in the mobile communication network 110 of the CDMA. 10 digits (012-acd-defg) when registering to AR (Autonomous Register) and Home Location Register / Visitor Location Register (HLR / VLR). For example, when voice paging to a subscriber having subscriber number 9123-4567 (assuming service identification number 9) in the number system, the following number processing procedure is performed.

First, the caller calls 012-9123-4567 to the public public telephone network (PSTN) 102. Then, the public public telephone network (PSTN) 102 removes the network identification number 012 and passes 9123-4567 to the wireless calling network 103.

Thereafter, the wireless call network 103 recognizes the first digit (service identification number 9) of the station number, removes the service identification number (9), and adds the network identification number to code division multiple access (012-123-4567). Hand over to the mobile communication network (110).

Next, the voicemail system 104 of the mobile communication network 110 records / compresses / stores the caller's message and transmits the message to the Short Message Center (SMC) 107 as 012-123-4567. Announces the presence of a voice paging message.

Then, the professional center (SMC) 107 recognizes the station number 123 and contacts the home location register (HLR) 105 to determine the current location of the terminal, voice paging stored in the voice mailbox system 104 The message is made into a single professional service (SMS) format and transmitted to the terminals 111 and 112 via a visitor mobile switching center (MSC) 108 in which the terminal is currently registered.

On the other hand, the procedure for registration is as follows.

First, when the power is turned on, the terminal transmits the 012-123-4578 embedded in the ROM to the local visitor location register (VLR) via the base station 109 through the reverse control channel. Thereafter, the local visitor location register (VLR) recognizes the station number 123 and requests authentication of 012-123-4567 from the home location register (HLR) 105. Next, the home location register (HLR) 015 recognizes the network identification number 12, searches the voice paging subscriber database, and notifies the visitor location register (VLR) of the result, and reports its contents. Update In addition, the terminal sends a registration deletion request signal of 012-123-4567 to the visitor location register (VLR) previously registered.

As such, the numbering scheme of the first method is rather complex, but unlike the second method (representative number use: two-stage dialing), the caller can deliver a voice paging message in one step dialing, There is an advantage that can accommodate 10 million (7 digit) subscribers without consuming.

Next, the voice data compression method is as follows.

In general, voice data is transmitted as Pulse Code Modulation (PCM) digital data of 64 kbps in a public switched telephone network (PSTN) 102. Such 64 kbps data is inefficient to transmit in 9.6 kbps (CDMA) mobile communication channel 110 traffic channel. Therefore, the present invention adopts and uses a high compression voice encoding method. This includes 6.4 / 5.6kbps already standardized, 4.8 / 4.0kbps nonstandard, and 2.4 / 2.0kbps recently released. [Table 2] below compares the time required for transmitting the voice paging message assuming that the caller has left voice for 30 seconds for each voice encoding method.

[Table 2] Message Transmission Time by Voice Encoding Method

In the present invention, the compression of the voice data is carried out in the voicemail system 104, and the voice transmitted from the general public telephone network 102 should be compressed to 6.4 to 2.0 kbps. Converted to a specialized service format and transmitted to the terminal through the traffic channel of the code division multiple access (CDMA) mobile communication network (110). On the other hand, the terminal has a decoder (Decoder) that can decode the received compressed voice data in the SMS (SMS) format.

3 is a flowchart illustrating a voice paging service method according to an embodiment of the present invention.

First, when the calling telephone dials the called party number (012-Xabc-defg), it is connected to the voice mail system via the public public telephone network (PSTN) and the wireless calling network. That is, in the general public telephone network, when the called party number is received, the called party number is transmitted to the wireless calling network except for the network identification number.The wireless calling network removes the service identification number from the called party number and adds the network identification number to the voice. Transfer to mailbox system.

The voicemail system broadcasts a call to leave a voice paging message for the caller, and the caller transmits the voice paging message to the voicemail system through the telephone for a limited time (for example, 30 seconds).

In the voicemail system, the delivered voice paging message is compressed and stored at 6.4 to 2.0 kbps, and the caller ends the call between himself and the caller by sending an acknowledgment signal to the caller.

The voicemail system requests the specialty center to deliver the stored voice paging message to the subscriber of the called party number (012-abc-defg), and the professional center (SMC) responds to the voice paging message delivery request ( Acknowledge) sends a response to the voicemail system and responds.

In the SMC, the home location register (HLR) requests the current location of the subscriber to determine the current location of the subscriber (terminal).

SMC requires the delivery of compressed / stored voice paging messages to voice mailbox system, receives the voice paging message, formats it into a single professional service format, and sends an acknowledgment signal for voice paging message transmission. End the interaction between yourself and the voicemail system.

If the SMC requires a traffic channel (call channel) assignment to the Visitor MSC in which the subscriber is currently located in order to deliver a voice paging message in the form of a DSP, the visitor MS exchanges an empty traffic channel. After allocating one (call channel), it sends an acknowledgment signal to a traffic channel allocation request to transmit a voice paging message in the form of a monopoly service to a monopoly center (SMC).

When the SMC receives an acknowledgment signal for a traffic channel allocation request from a visitor mobile exchange (Visit MSC), a voice paging message in the form of a specialty service is assigned via the visitor mobile exchange (Visit MSC). Transmit to subscriber station through traffic channel (call channel).

Upon receiving the voice paging message, the terminal decodes it and listens to the subscriber by voice through a speaker.

4 is a flowchart illustrating a voice paging service method according to another embodiment of the present invention.

First, dialing the representative number (011-tuv-wxyz) on the calling telephone is connected to the voice mail system via the public switched telephone network (PSTN) and the mobile switching center (MSC). That is, in the general public telephone network, when the representative number is received, the representative number excluding the network identification number is transmitted to the mobile exchange, and the mobile exchange requests call routing to the voice mailbox system.

The voicemail system sends an announcement to enter the callee's number (abc-defg), and when the caller finishes entering the callee's number, the caller sends the announcement to enter the voice paging message to continue. The caller sends a voice paging message to the voicemail system via the telephone for a limited time (eg 30 seconds).

The voicemail system compresses / stores the delivered voice paging message at 6.4 to 2.0 kbps and sends an acknowledgment signal to the caller to terminate the call between the caller and the caller.

The voicemail system requests the specialty center (SMC) to deliver the stored voice paging message to the subscriber of the called party number (011-abc-defg), and the professional center (SMC) responds to the voice paging message delivery request ( Acknowledge) sends a response to the voicemail system and responds.

In the SMC, the home location register (HLR) requests the current location of the subscriber to determine the current location of the subscriber (terminal).

SMC requires the delivery of compressed / stored voice paging messages to voice mailbox system, receives the voice paging message, formats it into a single professional service format, and sends an acknowledgment signal for voice paging message transmission. End the interaction between yourself and the voicemail system.

If the SMC requires a traffic channel (call channel) assignment to the Visitor MSC in which the subscriber is currently located in order to deliver a voice paging message in the form of a DSP, the visitor MS exchanges an empty traffic channel. After allocating one (call channel), it sends an acknowledgment signal to a traffic channel allocation request to transmit a voice paging message in the form of a monopoly service to a monopoly center (SMC).

When the SMC receives an acknowledgment signal for a traffic channel allocation request from a visitor mobile exchange (Visit MSC), a voice paging message in the form of a specialty service is assigned via the visitor mobile exchange (Visit MSC). Transmit to subscriber station through traffic channel (call channel).

Upon receiving the voice paging message, the terminal decodes it and listens to the subscriber by voice through a speaker.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

The present invention as described above, by performing the voice paging service by transmitting a voice paging message to the callee in the form of a single specialized service through the traffic channel of the code division multiple access mobile communication system in the voice paging system, Compared to this, the restriction of expression and convenience of use are greatly improved, and subscribers can use high value-added services such as one-way mobile phone service at low cost, and can receive voice paging subscriber without consuming mobile phone subscriber number. There is.

Claims (10)

In the voice paging service method applied to the voice paging system, When the caller accesses the voice mailbox system through the public public telephone network and the wireless call network, the voice mailbox system receives the voice paging message from the caller, compresses and stores the voice paging message, and requests the voice paging message to be transmitted to the SCM. A first step of making; The single specialized center determines the current location of the subscriber through the home location register (HLR), receives the voice paging message from the voice mailbox system, formats it into a single specialized service format, and then traffics to the visitor mobile exchange where the current subscriber is located. A second step of requesting channel (call channel) allocation; And When the visitor mobile exchange allocates a traffic channel (call channel), the single-specialty center transmits a voice paging message in a single-specialty service format to the subscriber station through the assigned traffic channel (call channel) via the visitor mobile exchange. Voice paging service method comprising the third step. The method of claim 1, The first step is, A caller dialing a called number (012-Xabc-defg) on a calling telephone to access a voicemail system via the public switched telephone network (PSTN) and a wireless calling network; Sending a paging message to the voicemail system through the calling telephone for a limited time according to the announcement of the voicemail system to leave a voicepage message; In the voicemail system, after compressing / saving the received voice paging message, sending an acknowledgment signal for transmitting the voice paging message to the caller to terminate the call between the caller and the caller; And If the voicemail system requests the single call center to deliver the stored voice paging message to the subscriber of the called party number (012-abc-defg), the call center receives an acknowledgment signal for the voice paging message delivery request. And responding by sending the voicemail system to the voicemail system. The method of claim 2, Connecting to the voicemail system, Receiving a called party number from the public switched telephone network when a caller dials a called party number (012-Xabc-defg) on the calling telephone; Transmitting the called party number to the wireless calling network except for the network identification number in the wireless calling network; And And removing the service identification number from the called party number and adding the network identification number to the voice calling system, and transmitting the service identification number to the voicemail system. The method according to any one of claims 1 to 3, The second step, Determining the current location of the subscriber station by requesting the current location of the subscriber from the home specialty center; The single professional center requests the delivery of the compressed / stored voice paging message to the voice mailbox system, receives the voice paging message, formats it into a single professional service format, and then sends an acknowledgment signal for transmitting the voice paging message. Terminating the interaction with the voicemail system; And And requesting a traffic channel (call channel) assignment to the visitor mobile exchange in which the current subscriber is located in order to deliver a voice paging message in a single specialty service format. The method of claim 4, wherein The third step, Transmitting, by the visitor mobile switch, an acknowledgment signal for a traffic channel allocation request to transmit a voice paging message in the form of a single expert service to a single expert center after finding and allocating an empty traffic channel (call channel); When the terminal specialized center receives an acknowledgment signal for the traffic channel allocation request from the visitor mobile exchange, a voice paging message in the form of a monolithic service is transmitted through the assigned traffic channel (call channel) via the visitor mobile exchange. Transmitting to the subscriber terminal; And And receiving the voice paging message and outputting the voice message to the subscriber through a speaker by decoding the voice paging message. In the voice paging service method applied to the voice paging system, When the caller dials the representative number and accesses the voice mailbox system through the public public telephone network and the mobile switching system, the voice mailbox system receives the called party number and the voice paging message, compresses and stores it, and then sends it to the SMC. Requesting delivery of a voice paging message; The single specialized center determines the current location of the subscriber through the home location register (HLR), receives the voice paging message from the voice mailbox system, formats it into a single specialized service format, and then traffics to the visitor mobile exchange where the current subscriber is located. A second step of requesting channel (call channel) allocation; And When the visitor mobile exchange allocates a traffic channel (call channel), the single-specialty center transmits a voice paging message in a single-specialty service format to the subscriber station through the assigned traffic channel (call channel) via the visitor mobile exchange. Voice paging service method comprising the third step. The method of claim 6, The first step is, A caller dialing a representative number (011-tuv-wxyz) on a calling telephone to access the voicemail system via the public switched public telephone network (PSTN) and a mobile switching center (MSC); The caller calls the call for a limited time according to the announcement of the voicemail system prompting the user to enter a caller's number and then to input a voice paging message according to the announcement of the voicemail system prompting the user to enter the callee's number (abc-defg). Sending a voice paging message to the voicemail system via a telephone; In the voicemail system, after compressing / saving the received voice paging message, sending an acknowledgment signal for transmitting the voice paging message to the caller to terminate the call between the caller and the caller; And If the voicemail system requests the single call center to deliver the stored voice paging message to the subscriber of the called party number (011-abc-defg), the single call center receives an acknowledgment signal for the voice paging message delivery request. And responding by sending the voicemail system to the voicemail system. The method of claim 7, wherein Connecting to the voicemail system, Receiving a representative number in the general public telephone network when a caller dials a representative number (011-tuv-wxyz) in the calling telephone; Transmitting the representative number other than the network identification number to the mobile switch in the general public telephone network; And And requesting call routing from the mobile switching system to the voicemail system. The method according to any one of claims 6 to 8, The second step, Determining the current location of the subscriber station by requesting the current location of the subscriber from the home specialty center; The single professional center requests the delivery of the compressed / stored voice paging message to the voice mailbox system, receives the voice paging message, formats it into a single professional service format, and then sends an acknowledgment signal for transmitting the voice paging message. Terminating the interaction with the voicemail system; And And requesting a traffic channel (call channel) assignment to the visitor mobile exchange in which the current subscriber is located in order to deliver a voice paging message in a single specialty service format. The method of claim 9, The third step, Transmitting, by the visitor mobile switching center, an acknowledgment signal for a traffic channel allocation request to transmit a voice paging message in the form of a single-specialized service to the single-specialized center after finding and assigning an empty traffic channel (call channel); When the terminal specialized center receives an acknowledgment signal for the traffic channel allocation request from the visitor mobile exchange, a voice paging message in the form of a monolithic service is transmitted through the assigned traffic channel (call channel) via the visitor mobile exchange. Transmitting to the subscriber terminal; And And receiving the voice paging message and outputting a message to the subscriber through a speaker by decoding the voice paging message.