Method for Processing Packets of the IP Type Intended to be Carried Over a Communications Channel of a Wireless Network, and Equipment for Same

• US 20120099531A1
• Filed: 05/03/2010
• Published: 04/26/2012
• Est. Priority Date: 05/06/2009
• Status: Active Grant

• Current Assignee: ST-Ericcson SA (Telefonaktiebolaget LM Ericsson)
• Original Assignee: ST-Ericcson SA (Telefonaktiebolaget LM Ericsson)
• Inventors: Sfar, Safouane
• Granted Patent: US 8,705,535 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 69/166 IP fragmentation; TCP segmentation
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 69/323 in the physical layer [OSI layer 1]
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04W 99/00 Subject matter not provided for in other groups of this subclass

Abstract

A method for processing packets of the IP type within equipment of a wireless communications network comprising an encapsulation of the packets within frames carried over a communications channel of the wireless network. The said encapsulation comprises a first encapsulation of the signalling packets of the IP type within a frame of a first type containing an indication associated with this type of packet, then an additional encapsulation of the said frame of the first type within a frame of a second type different from the first type, and a second encapsulation of the packets transporting the user data of the IP type within a frame of a third type then an additional encapsulation of the said frame of the third type within a frame of the second type.

Claims

1. A method for processing packets of the IP type within equipment of a wireless communications network comprising an encapsulation of the packets within frames carried over a communications channel of the wireless network, wherein the said encapsulation comprises a first encapsulation of the signalling packets of the IP type within a frame of a first type containing an indication associated with this type of packet, then an additional encapsulation of the said frame of the first type within a frame of a second type different from the first type, and an encapsulation of the packets transporting the user data of the IP type within a frame of a third type then an additional encapsulation of the said frame of the third type within a frame of the second type.

2. The method according to claim 1, in which the said indication is added into the header of the frame of the first type.

3. The method according to claim 1, in which each packet transporting the user data of the IP type contains an indication of quality of service, and this indication of quality of service is transposed into the header of the frame of the third type encapsulating the said packet.

4. The method according to claim 1, in which the said encapsulation of the signalling packets of the IP type furthermore comprises an additional encapsulation of the frame of the first type within a frame of the third type then an encapsulation of the frame of the third type within the frame of the second type.

5. Equipment of a wireless communications network comprising first means configured for delivering packets of the IP type, and encapsulation means configured for encapsulating the packets within frames intended to be carried over a communications channel of a wireless network, wherein the encapsulation means comprises:

a first encapsulation block configured for carrying out an encapsulation within a frame of a first type,

a second encapsulation block configured for carrying out an encapsulation within a frame of a second type, different from the first type, and

a third encapsulation block comprising two sub-blocks configured for carrying out an encapsulation within a frame of a third type,

and the equipment furthermore comprises control means capable, by means of the first sub-block of the third block, of delivering a signalling packet of the IP type to the first encapsulation block then of delivering the said frame of the first type to the second encapsulation block,

the first block furthermore being capable of incorporating into the frame of the first type an indication associated with this type of packet,

and the control means are capable of delivering a packet of data of the IP type to the second sub-block of the third encapsulation block then of delivering the said frame of the third type to the second encapsulation block.

6. The equipment according to claim 5, in which the first block is configured for incorporating the said indication into the header of the frame of the first type.

7. The equipment according to claim 5, in which each packet transporting the user data of the IP type contains an indication of quality of service, and in which the second sub-block of the third block is furthermore configured for transposing the said indication of quality of service into the header of the frame of the third type encapsulating the said packet (35, PDCP).

8. The equipment according to claim 5, in which the control means are furthermore capable of routing the frames of the first type towards the first sub-block of the third encapsulation block then of routing the resulting frames towards the second block.

9. The equipment according to claim 5, comprising a module of the PDCP type incorporating the third encapsulation block.

10. The equipment according to claim 5, forming a wireless communications device, for example a cellular mobile telephone.