DSP voice buffersize negotiation between DSPs for voice packet end devices

• US 20050002411A1
• Filed: 07/28/2004
• Published: 01/06/2005
• Est. Priority Date: 09/24/1998
• Status: Active Grant

• Current Assignee: Keyvan Moataghed
• Original Assignee: Keyvan Moataghed
• Inventors: Moataghed, Keyvan
• Granted Patent: US 7,742,491 B2
• Time in Patent Office: Days
• US Class Current: 370/413
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/30 in combination with information about buffer occupancy at either end or at transit nodes

Abstract

A packet switching network system for use in transferring information that is in the form of packets and including an originating device and a destination device for communicating therebetween through a packet switching network, the originating device including a sending device having a first buffer with a predetermined first buffer size, the first buffer being used to store information that is to be sent to the destination unit, the sending device for sending a request packet including the first buffer size, through the packet switching network, to the destination device, the destination device including a receiving device having a second buffer with a predetermined second buffer size, the second buffer size being used for storing information that is received from the originating device, the receiving device for receiving a request packet including the first buffer size from the originating device, determining whether or not the received first buffer size is supported by the destination device, and accordingly sending back a response, through the packet switching network, to the originating device, wherein, during initialization, the originating device and the destination device enter into negotiations as to a mutually-acceptable buffer size that is to be used for information transfer by the packet switching network system.

Claims

1. A sending device for use in a packet switching network system for transferring information that is in the form of packets comprising:

a first buffer with a predetermined first buffer size, the first buffer for use in storing information that is to be sent, through the packet switching network, to a destination device, the sending device for sending a request packet including the first buffer size, through the packet switching network, to the destination device, said sending device including an originating telecommunications device responsive to information provided by a user and operative to develop originating analog signals,

wherein the sending device and the destination device enter into negotiations as to a mutually-acceptable buffer size that is to be used for information transfer through the packet switching network system thereby increasing system performance by reducing or avoiding delays experienced by the user.

2. A sending device as recited in claim 1 wherein the sending device further includes an originating digital signal processing (DSP) device responsive to said originating analog signals for converting the latter from analog format to digital format, said originating DSP device operative to develop originating digital interface signals.

3. A packet switching network system as recited in claim 2 wherein the sending device further includes an originating interface device responsive to said originating digital interface signals and operative to develop network signals for transfer thereof, through the packet switching network, to the destination device.

4. A sending device for use in a packet switching network system for transferring information that is in the form of packets comprising:

buffer means having a predetermined first buffer size, the buffer means for use in storing information that is to be sent, through the packet switching network, to a destination device, the sending device for sending a request packet including the first buffer size, through the packet switching network, to the destination device, said sending device including an originating telecommunications device responsive to information provided by a user and operative to develop originating analog signals,

wherein the sending device and the destination device enter into negotiations as to a mutually-acceptable buffer size that is to be used for information transfer through the packet switching network system thereby increasing system performance by reducing or avoiding delays experienced by the user.

5. A sending device as recited in claim 4 wherein the sending device further includes an originating digital signal processing (DSP) device responsive to said originating analog signals for converting the latter from analog format to digital format, said originating DSP device operative to develop originating digital interface signals.

6. A packet switching network system as recited in claim 5 wherein the sending device further includes an originating interface device responsive to said originating digital interface signals and operative to develop network signals for transfer thereof, through the packet switching network, to the destination device.

7. A method for negotiating buffer size in a packet switching network system for transferring information that is in the form of packets between a sending device and a receiving device comprising:

receiving information to be transmitted to a destination device;

storing the received information in a first buffer having a predetermined first buffer size;

sending a request packet including the first buffer size, through the packet switching network, to the destination device;

receiving information provided by a user;

developing originating analog signals based on the information provided by the user; and

negotiating a mutually-acceptable buffer size that is to be used for information transfer through the packet switching network system.

8. A computer readable medium having stored therein computer readable program code comprising instructions for performing the following steps:

receiving information to be transmitted to a destination device;

storing the received information in a first buffer having a predetermined first buffer size;

sending a request packet including the first buffer size, through the packet switching network, to the destination device;

receiving information provided by a user;

developing originating analog signals based on the information provided by the user; and

negotiating a mutually-acceptable buffer size that is to be used for information transfer through the packet switching network system.

9. A receiving device, included within the destination device, for use in a packet switching network system for transferring information that is in the form of packets between an originating device and a destination device through the packet switching network comprising:

a receiving buffer with a predetermined receiving buffer size, the receiving buffer for use in storing information that is received from the originating device, the receiving device for receiving a request packet, including the size of a sending buffer associated with the originating device, from the originating device, determining whether or not the received sending buffer size is supported by the destination device and accordingly sending back a response to the originating device, through the packet switching network, as to whether or not the received sending buffer size is supported by the destination device,

wherein the originating device and the destination device enter into negotiations as to a mutually-acceptable buffer size that is to be used for information transfer by the packet switching network system thereby increasing system performance by reducing or avoiding delays experienced by the user.

10. A receiving device as recited in claim 9 wherein the destination device further includes an destination interface device responsive to said network signals and operative to develop destination DSP signals.

11. A receiving device as recited in claim 10 wherein the destination device further includes a destination DSP device responsive to said destination DSP signals for converting the latter from analog format to digital format, said destination DSP device operative to develop destination telecommunications signals.

12. A receiving device as recited in claim 11 wherein the destination device further includes a destination telecommunications device responsive to said destination telecommunications signals.

13. A receiving device, included within the destination device, for use in a packet switching network system for transferring information that is in the form of packets between an originating device and a destination device through the packet switching network comprising:

Receiving buffer means having a predetermined receiving buffer size, the receiving buffer means for use in storing information that is received from the originating device, the receiving device for receiving a request packet, including the size of a sending buffer associated with the originating device, from the originating device, determining whether or not the received sending buffer size is supported by the destination device and accordingly sending back a response to the originating device, through the packet switching network, as to whether or not the received sending buffer size is supported by the destination device,

wherein the originating device and the destination device enter into negotiations as to a mutually-acceptable buffer size that is to be used for information transfer by the packet switching network system thereby increasing system performance by reducing or avoiding delays experienced by the user.

14. A receiving device as recited in claim 13 wherein the destination device further includes an destination interface device responsive to said network signals and operative to develop destination DSP signals.

15. A receiving device as recited in claim 14 wherein the destination device further includes a destination DSP device responsive to said destination DSP signals for converting the latter from analog format to digital format, said destination DSP device operative to develop destination telecommunications signals.

16. A receiving device as recited in claim 15 wherein the destination device further includes a destination telecommunications device responsive to said destination telecommunications signals.

17. A method for negotiating buffer size between an originating device and a destination device for use in a packet switching network system through a packet switching network comprising:

receiving a request packet, including the size of a sending buffer associated with the originating device, from the originating device;

determining whether or not the received sending buffer size is supported by the destination device;

sending back a response to the originating device, through the packet switching network, as to whether or not the received sending buffer size is supported by the destination device; and

negotiating as to a mutually-acceptable buffer size that is to be used for information transfer through the packet switching network system to reduce or avoid delays.

18. A computer readable medium having stored therein computer readable program code comprising instructions for performing the following steps:

receiving a request packet, including the size of a sending buffer associated with the originating device, from the originating device;

determining whether or not the received sending buffer size is supported by the destination device;

sending back a response to the originating device, through the packet switching network, as to whether or not the received sending buffer size is supported by the destination device; and

negotiating as to a mutually-acceptable buffer size that is to be used for information transfer through the packet switching network system to reduce or avoid delays.