US 2004/0057423 A1 · Method for exchanging data packets between two service providers of a radiotelephony transmission system

Abstract

In a third generation (UMTS) mobile radiotele-phone system, data are transmitted between a base station and a mobile station in packet form via the air interface. A connection control protocol with the task of inter alia, establishing whether and which of the data packets have been lost during the transmission, using control data, functions in both stations. These control data are added to each packet that is sent by the connection control protocol. Several packets can be transmitted within the transmission interval and the number of packets can vary from interval to interval. This allows different data transmission rates. The inventive method enables the number of packets that are sent via the air interface to be reduced, by transmitting larger, rather than more packets within a predetermined interval. This does not affect the possibility of varying the data transmission rate.

Claims10

Dependent claims

Method for exchanging data packets between two service providers (RLC, MAC) of a radio transmission system, whereby a first service provider (RLC)

a) retrieves a first data packet (SDU) at a first service access point (RB),
b) divides it into a number of first data segments (PUi),
c) generates a protocol data unit (PDU) from one or more of the first data segments (PUi) and
d) transfers the protocol data unit (PDU), via a second service access point, to the second service provider (MAC),
characterized in that
the protocol data block has a first control data field (LI bit map) indicating which first data segments (PUi) contained in the protocol data unit (PDU) contain at least a second control data field (LI).

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/415,866Filed 16 Oct 2003

Priority

DE 10054473.83 Nov 2000

Published

25 Mar 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04L 1/1614
Details of the supervisory signal: using bitmaps
H04W 28/06
Traffic management, e.g. flow control or congestion control: optimizing the usage of the radio link, e.g. header compression, information sizing ,…
H04W 80/00
Wireless network protocols or protocol adaptations to wireless operation
H04W 92/02
Interfaces specially adapted for wireless communication networks: inter-networking arrangements

Method for exchanging data packets between two service providers of a radiotelephony transmission system

Life of this patent

Method for exchanging data packets between two service providers of a radiotelephony transmission system

Life of this patent

Abstract

Claims10