Allocating data transmission resources in packet-switched data transmission

• US 20020001298A1
• Filed: 06/25/2001
• Published: 01/03/2002
• Est. Priority Date: 06/28/2000
• Status: Active Grant

• Current Assignee: Conversant Wireless Licensing S.à.r.l. (f/k/a Core Wireless Licensing S.a.r.l.) (MOSAID Technologies Inc. (f/k/a Conversant Intellectual Property Management))
• Original Assignee: Nokia Corporation
• Inventors: Marjelund, Pekka, Kalliokulju, Juha, Tourunen, Ari, Kohonen, Pekka, Kallio, Hans
• Granted Patent: US 7,460,475 B2
• Time in Patent Office: Days
• US Class Current: 370/349
• CPC Class Codes: H04L 47/15 in relation to multipoint traffic arrangements for broadcast or multicast in data networks H04L12/18
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/808 User-type aware
• CPC Class Codes: H04L 47/822 Collecting or measuring resource availability data
• CPC Class Codes: H04L 47/824 Applicable to portable or mobile terminals
• CPC Class Codes: H04L 47/825 Involving tunnels, e.g. MPLS
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

A method of allocating data transmission resources in a packet-switched telecommunications system which comprises a terminal and a fixed network to which an operational entity is defined for defining resources for a radio bearer. Radio bearer resources are defined for the terminal on the basis of an application used on the radio bearer, and the used compression method of header fields in data packets is selected before the radio bearer resources are defined, the resources being defined in such a manner that they also comprise the capacity required by the selected compression method of header fields in data packets. The compression methods of header fields in data packets, which are supported by the terminal, are transmitted to the operational entity in the fixed network for defining the compression method to be used. Capacity is defined for the radio bearer in two directions, if the selected compression method of header fields in data packets requires a bi-directional connection.

Claims

1. A method of allocating data transmission resources in a packetswitched telecommunications system including a terminal and a fixed network to which an operational entity is defined for defining resources for a radio bearer, the method comprising steps of

defining a compression method of header fields in data packets used on the radio bearer, and

defining the radio bearer resources for the terminal on the basis of an application used by the terminal on said radio bearer in such a manner that said resources also comprise the capacity required by the selected compression method of header fields in data packets.

2. A method as claimed in claim 1, further comprising a step of

transmitting the compression methods of header fields in data packets, which are supported by the terminal, to the operational entity in the fixed network for defining the compression method to be used.

3. A method as claimed in claim 1, further comprising a step of

defining capacity in two directions for said radio bearer in response to the selected compression method of header fields in data packets requiring a bi-directional connection.

4. A method as claimed in claim 1, wherein

the packet-switched telecommunications system is a UMTS system and the operational entity for defining resources for the radio bearer comprises a radio resource control protocol and a radio resource management system.

5. A method as claimed in claim 4, wherein

the resources of said radio bearer are defined in the radio resource management system.

6. A method as claimed in claim 5, wherein

the defined radio bearer resources are transmitted to the radio resource control protocol which allocates the radio resources of the radio bearer.

7. A method as claimed in any one of claims 4 to 6, wherein

the compression methods of header fields in data packets, which are supported by a convergence protocol of the terminal, are transmitted to a radio network controller for defining the compression method to be used.

8. A packet-switched telecommunications system including a terminal and a fixed network which comprises an operational entity for defining resources for a radio bearer, in which system

the compression method of header fields in data packets used on the radio bearer is configured to be defined, and

the resources of the radio bearer are configured to be defined on the basis of an application used by the terminal on said radio bearer in such a manner that said resources also comprise the capacity required by the selected compression method of header fields in data packets.

9. A telecommunications system as claimed in claim 8, wherein

the compression methods of header fields in data packets, which are supported by the terminal, are configured to be transmitted to the operational entity in the fixed network for defining the compression method to be used.

10. A telecommunications method as claimed in claim 8 or 9, wherein

the packet-switched telecommunications system is a UMTS system and the operational entity for defining resources for the radio bearer comprises a radio resource control protocol and a radio resource management system.