Unlock instant, AI-driven research and patent intelligence for your innovation.

A method of facsimile and wireless gateway

A wireless gateway and gateway technology, applied in the field of communication, can solve the problem of high fax failure rate and achieve the effect of improving the fax success rate

Active Publication Date: 2011-12-21
HONOR DEVICE CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: in a 3G network environment, high-speed facsimile machines are connected to perform high-speed transparent transmission of facsimiles. The uplink bandwidth far exceeds 60 K, and the fax failure rate is very high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method of facsimile and wireless gateway
  • A method of facsimile and wireless gateway
  • A method of facsimile and wireless gateway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 As shown, it is a flowchart of a facsimile method according to an embodiment of the present invention. The above method includes:

[0019] 101. After receiving the high-speed fax signal sent by the sender's gateway, perform low-speed fax session initialization protocol negotiation with the sender's gateway.

[0020] The performing LSIP negotiation with the sender gateway may include: sending a LSIP negotiation request to the sender gateway; receiving a LSIP negotiation success message replied by the sender gateway.

[0021] 102. After the negotiation is successful, start the low-speed fax process.

[0022] Optionally, the low-speed fax signal successfully negotiated above may be a commonly used T.38 low-speed fax signal with a threshold rate of 14400 bps, 3 redundant packets, and a packet duration of 20 ms. The above-mentioned sender gateway and receiver gateway may include at least one of the following: 3G gateway, WiMAX gateway and so on.

[0023] ...

Embodiment 2

[0026] Such as figure 2 As shown, it is a schematic diagram of the facsimile method of the application example of the present invention, which includes the following steps:

[0027] 201. Two 3G access gateways (a 3G sender gateway and a 3G receiver gateway) establish a lossy codec voice channel.

[0028] Lossy codec means that when the voice packet is generated by a DSP (Digital Signal Processing, digital signal processing) chip, the compression algorithm will compress and encode the voice signal, and this compression is a lossy signal, often in VoIP (Voice over Internet Protocol, network telephony) appears on the network. The more commonly used ones are: G.726, G.723, G.729, etc. Then, under the 20ms packaging time, the bandwidth occupied by the voice channel of the G.729 encoding and decoding method is 34.4kbps (other similar G.723 30ms packaging occupies a bandwidth of 22.9kbps, etc.).

[0029] 202. After receiving the high-speed fax signal from the high-speed fax machi...

Embodiment 3

[0037]Corresponding to the above method embodiment, such as image 3 As shown, it is a schematic structural diagram of a facsimile device according to an embodiment of the present invention. The above device includes:

[0038] The negotiating unit 301 is configured to perform low-speed fax session initialization protocol negotiation with the sending gateway after receiving the high-speed fax signal sent by the sending gateway. Specifically, the negotiating unit may send a SIP fax request carrying a description of the low-speed fax signal to the sending gateway, and receive a low-speed fax SIP negotiation success message replied by the sending gateway.

[0039] The low-speed fax processing unit 302 is configured to start the low-speed fax process after the negotiation of the low-speed fax session initialization protocol is successful. It is specifically used to negotiate low-speed fax signals with the sender gateway; receive fax messages through the negotiated low-speed fax si...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An embodiment of the present invention provides a facsimile method and a wireless gateway. The method includes: after receiving a high-speed facsimile signal sent by the sender gateway, performing low-speed fax session initialization protocol negotiation with the sender gateway; the low-speed fax session initialization protocol After the negotiation is successful, start the low-speed fax process. The above wireless gateway includes: a negotiating unit, configured to negotiate a low-speed fax session initialization protocol with the sending gateway after receiving a high-speed fax signal sent by the sending gateway; After the negotiation is successful, start the low-speed fax process. The embodiment of the present invention converts high-speed fax into low-speed fax processing, adapts to network bandwidth, and improves the success rate of fax.

Description

technical field [0001] The invention relates to the communication field, in particular to a facsimile method and a wireless gateway. Background technique [0002] IP fax refers to three types of fax services carried on a packet-switched IP network without QoS (Quality of Service, quality of service) guarantee. IP fax is divided into low-speed T.38 fax and high-speed transparent fax. Among them, the transparent transmission of fax means that the fax signal and fax data are directly transmitted to the other party in the voice packet. Once the voice packet is lost or delayed, this method cannot guarantee the reliability of the fax. When using the T.38 protocol for faxing, relying on the redundancy mechanism of T.38 can guarantee the quality of service. T.38 is a supplementary protocol adapted to IP applications of T.30, which mainly encapsulates T.30 so as to adapt to IP fax. [0003] Fax protocols include V.17, V.29, V.27, V.21, V.34 and so on. Ordinary Class III (G3) fax ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/00
Inventor 徐军
Owner HONOR DEVICE CO LTD