CN1870681A

CN1870681A - Method for sending called code in dailing-on of radio receiving equipment

Info

Publication number: CN1870681A
Application number: CN 200510071974
Authority: CN
Inventors: 马辉; 曹江
Original assignee: Shanghai Huawei Technologies Co Ltd
Current assignee: Shanghai Huawei Technologies Co Ltd
Priority date: 2005-05-25
Filing date: 2005-05-25
Publication date: 2006-11-29
Anticipated expiration: 2025-05-25
Also published as: CN100459624C

Abstract

This invention discloses a method for sending called code in a calling connection of a radio access device, in which, in the period of the calling connection, an AN carries a called code in a piece of assigned out-of-band signaling to send the called code to a LE at one run by a signaling channel and increase the velocity of calling connection for radio access devices.

Description

In continuing, the radio reception device caller sends the method for called number

Technical field

The present invention relates to the wireless access network technology, refer to a kind of method that in the radio reception device caller that the V5 interface can be provided continues, sends called number especially.

Background technology

The V5 interface protocol bunch has stipulated that signal physical criterion interconnected between Access Network (AN) and the local switch (LE), call control information transmit agreement, and the V5 agreement provides the standard interface between AN and LE.The protocol sublayers that wherein is used for controlling call foundation in the V5 agreement is the PSTN protocol sublayers.

At present, in each wireless access system scheme, Access Network provides the V5 interface to dock with switch, regulation according to the V5 agreement, the calling procedure of radio reception device is: set up Signalling exchange earlier and distribute call resources, adopt Dual Tone Multifrequency mode or duplexing frequency displacement to build control (FSK) mode then and send called number one by one and finish caller and continue.Here, radio reception device is a general designation, refers to provide the wireless system of V5 interface, as base station controller (BSC), and mobile switching centre (MSC) etc.Fig. 1 is that the prior art radio reception device is realized the flow chart that caller continues, and in the prior art, except dialing employing DTMF/FSK mode sent, all the other message all adopted out-of-band signalling to send, and concrete job step is described below:

Step 10～step 11: user's off-hook, AN sends request to LE and sets up (ESTABLISH) message, starts ESTABLISH message retransmission timer simultaneously.

In this step, after radio reception device was finished dialing, AN was by the initial call that carry called number (ORIGINATE) signaling of radio open reception from radio reception device, thereby triggering user off-hook enters follow-up signalling interactive process.

Here ESTABLISH message retransmission timer is used in retransmitting timing, if LE does not have response, AN sends ESTABLISH message to LE again.V5 agreement regulation, AN has three chances to send ESTABLISH message to LE, does not then think this call failure if still has to respond.

Step 12:LE sends request to the PSTN of AN protocol layer and sets up response (EASTABLISH_ACK) message, after AN receives EASTABLISH_ACK message, stops ESTABLISH message retransmission timer.

Step 13～step 15:LE sends to AN and distributes (ALLOCATION) message, the service link that distributes this calling, after receiving ALLOCATION message, AN distributes V5 related resources such as wireless side and AN side time slot, and returns distribution to LE and finish (ALLOCATION_COMPLETE) message.

Step 16～step 17:LE is put dialing tone to AN after receiving ALLOCATION_COMPLETE message, after AN receives dialing tone, by DTMF mode or FSK mode called number is sent to LE one by one.

In this step, send called number one by one by the DTMF/FSK mode, AN will take out from the called number in the ORIGINATE signaling of radio open, and send to LE one by one after converting called number to two-tone signal by digital information by the DTMF/FSK encoder; And in the LE side, then the DTMF/FSK conversion of signals that will receive one by one by the DTMF/FSK decoder becomes digital called number.

Realize the treatment step that caller continues from above-mentioned prior art radio reception device, after the caller signaling process of completing steps 10～step 15, the dialing tone that AN sends according to LE, the transmission of called number is through voice channel called number to be sent to LE one by one by DTMF or FSK mode, just finishes calling procedure then.And in general, sending a number needs 250ms, if the user dials the called number of eight data, then only sending this process of called number just needs 2s, then consuming time longer if dial toll telephone, and whole like this calling procedure is consuming time also can be longer.

So the processing method that sends called number during the caller of prior art radio reception device continues can cause the whole caller speed that continues very slow, when especially dialing national distance, international long-distance, the caller slow problem that continued is particularly evident.

Summary of the invention

In view of this, the method that main purpose of the present invention is to provide a kind of radio reception device caller to send called number in continuing, this method can improve the radio reception device caller speed that continues, thereby the caller of finishing radio reception device fast continues.

For achieving the above object, technical scheme of the present invention specifically is achieved in that

Send the method for called number during a kind of radio reception device caller continues, this method may further comprise the steps:

A. after Access Network AN receives dialing tone, the called number that is carried in the initial call signaling that receives is taken out, and the called number that takes out is carried in the out-of-band signalling of appointment, called number is sent to local switch LE through signalling path;

B.LE takes out called number after receiving and sending the called number signaling.

In steps A, the out-of-band signalling of described appointment is the newly-increased transmission called number signaling of PSTN protocol sublayers in the V5 agreement.

Described transmission called number signaling comprises:

Be used to illustrate that sending the called number signaling is that the agreement that belongs to the signaling of PSTN protocol sublayers is differentiated the language field;

Be used to represent the L3 address field of different radio reception devices;

Be used to show the message type field that sends called number signaling title;

Be used to represent the called number length field of called number length;

Be used to store the called number field of called number.

If the called number that carries in the out-of-band signalling of described initial call signaling and described appointment adopts different coded formats to represent, in steps A, after the called number that carries in the initial call signaling that described taking-up receives, before called number being carried in the out-of-band signalling of appointment, this method also comprises: the called number that takes out is carried out format conversion.

The method of described format conversion is: convert the called number coded format of carrying in the described initial call signaling to called number adopts in the described out-of-band signalling coded format.

As seen from the above technical solution, among the present invention, when radio reception device realizes that caller continues, after finishing the caller signaling process, the process of transmitting of called number is achieved in that the dialing tone that AN sends according to LE, and AN will take out from the called number in the ORIGINATE signaling of radio open, and called number will be carried in the out-of-band signalling of an appointment, called number is sent to LE through signalling path is disposable, thereby finish calling procedure.The inventive method has improved the speed that the radio reception device caller continues on the one hand owing to adopt the disposable method that sends to LE of called number; On the other hand, owing to adopt software mode to realize, saved the processing of related hardwares such as DTMF codec, and then improved system reliability.

Description of drawings

Fig. 1 is that the prior art radio reception device is realized the flow chart that caller continues;

Fig. 2 is that radio reception device of the present invention is realized the flow chart that caller continues.

Embodiment

Core concept of the present invention is: in radio reception device caller handshaking procedure, AN is carried at called number in the out-of-band signalling of an appointment, called number is sent to LE through signalling path is disposable, has improved the speed that the radio reception device caller continues.

For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing preferred embodiment that develops simultaneously, the present invention is described in more detail.

Fig. 2 is that radio reception device of the present invention is realized the flow chart that caller continues, and concrete job step is described below:

Step 20～step 25: user's off-hook, AN sends ESTABLISH message to LE, starts ESTABLISH message retransmission timer simultaneously; LE sends EASTABLISH_ACK message to the PSTN of AN protocol layer, after AN receives EASTABLISH_ACK message, stops ESTABLISH message retransmission timer; LE sends ALLOCATION message to AN, distributes the service link of this calling, receive ALLOCATION message after, AN distributes V5 related resources such as wireless side and AN side time slot, and returns ALLOCATION_COMPLETE message to LE.

This step is the caller signaling process, is used to realize the distribution of call business link and V5 resource etc., and concrete processing procedure and prior art step 10～step 15 are in full accord, no longer repeat here.

After step 26～step 27:LE receives ALLOCATION_COMPLETE message, put dialing tone to AN, after AN receives dialing tone, to take out from the called number in the ORIGINATE signaling of radio open, and called number is carried in the out-of-band signalling of an appointment, called number is sent to LE through signalling path is disposable.

In this step, the out-of-band signalling of appointment is newly-increased in PSTN protocol sublayers transmission called number (SEND_CALLED_CODE) signaling, LE receives and has carried by after the transmission called number signaling of calling out the numbers, can disposable called number be taken out, and need not to resemble the conversion of waiting signal the prior art, saved the caller connecting time.

The SEND_CALLED_CODE signaling comprises following field:

Agreement is differentiated the language field, and this field meets V5 Technical Interface Specification V20, is used to illustrate that the SEND_CALLED_CODE signaling is the signaling that belongs to the PSTN protocol sublayers, is mandatory field, and agreement stipulates that this field value is necessary for 0 * 48;

L3 address field, this field meet V5 Technical Interface Specification V20, be used to represent different radio reception devices, and be mandatory field, agreement stipulates that this field value is 0～32767;

Message type field, this field meet V5 Technical Interface Specification V20, are used to show the title of SEND_CALLED_CODE signaling, are mandatory fields, and value may be prescribed as 0 * 0F, as long as AN and LE both sides are consensus;

The called number length field, this field is used to represent the length of called number, is mandatory field;

The called number field, this field is used to store called number, can adopt character code (ASCII) mode to represent.

Need to prove that if the value of called number length field is 0, illustrate that then the SEND_CALLED_CODE signaling do not carry called number, this situation can be used for using as other special identifier.

The ORIGINATE signaling is a standard signaling, if in the SEND_CALLED_CODE signaling in the storage format of called number and the ORIGINATE signaling storage format of called number be consistent, then in this step, AN directly takes out the called number in the ORIGINATE signaling and be carried in the called number field of SEND_CALLED_CODE signaling and gets final product, and the length with called number is carried in the called number length field of SEND_CALLED_CODE signaling simultaneously.

If in the SEND_CALLED_CODE signaling in the storage format of called number and the ORIGINATE signaling storage format of called number inconsistent, then in this step, after AN takes out the row format conversion of going forward side by side with the called number in the ORIGINATE signaling, the called number that meets the storage format of called number in the SEND_CALLED_CODE signaling after the conversion is carried in the called number field of SEND_CALLED_CODE signaling, and the length with called number is carried in the called number length field of SEND_CALLED_CODE signaling simultaneously.

Here said storage format is inconsistent, is meant to adopt different coded formats to represent called number, so just need change between the different coding form.Such as adopting ACCII representation called number in the ORIGINATE signaling, and adopt digital coding (BCD) to represent called number in the SEND_CALLED_CODE signaling, in this step, after the called number of ACCII representation need being converted to the called number that BCD represents, be carried in the called number field of SEND_CALLED_CODE signaling.

The method of the invention described above as can be seen, in step 26～step 27, AN is carried at called number in the out-of-band signalling of an appointment, called number is sent to LE through signalling path is disposable, has improved the speed that the radio reception device caller continues.

The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims

1. method that sends called number in the radio reception device caller continues is characterized in that this method may further comprise the steps:

2. method according to claim 1 is characterized in that, in steps A, the out-of-band signalling of described appointment is the newly-increased transmission called number signaling of PSTN protocol sublayers in the V5 agreement.

3. method according to claim 2 is characterized in that, described transmission called number signaling comprises:

Be used to represent the L3 address field of different radio reception devices;

Be used to represent the called number length field of called number length;

Be used to store the called number field of called number.

4. method according to claim 1, it is characterized in that, if the called number that carries in the out-of-band signalling of described initial call signaling and described appointment adopts different coded formats to represent, in steps A, after the called number that carries in the initial call signaling that described taking-up receives, before called number being carried in the out-of-band signalling of appointment, this method also comprises: the called number that takes out is carried out format conversion.

5. method according to claim 4 is characterized in that, the method for described format conversion is: convert the called number coded format of carrying in the described initial call signaling to called number adopts in the described out-of-band signalling coded format.