Method for adapting wap-based transmissions

• US 20060165006A1
• Filed: 08/08/2003
• Published: 07/27/2006
• Est. Priority Date: 08/08/2002
• Status: Active Grant

• Current Assignee: fg microtec GmbH
• Original Assignee: fg microtec GmbH
• Inventors: Kelz, Thomas
• Granted Patent: US 7,522,534 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04M 1/72445 for supporting Internet browser applications
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 80/00 Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

The invention relates to a method which makes decisions, which can be applied an various WAP protocol, based on calculations which determine the future quality of a link. Short-term forecasting involving fundamental decisions such as the structure of a link or the transmission or reception of data occurs. Short-term forecasting is used to modify certain parameters which are linked to the transmission of packets.

Claims

1. A method for determining parameters for WAP-based transmissions via a wireless connection,

a) where short-term and long-term predictions about the quality of the wireless connection are taken as a basis for making decisions about the type of transmission,

b) where, for long-term predictions about the possibility of setting up the wireless connection or the quality of the wireless connection, decisions in the form of send and/or get or suspend or resume are made,

c) where, for short-term predictions regarding the quality of an existing wireless connection, decisions are made regarding:

c1) the number of asynchronous transactions and/or

c2) the delay of a retransmission and/or

c3) an alteration in the burst mode and/or

c4) the packet size.

2. The method as claimed in claim 1, wherein even when there is a prediction about an imminent cell change the packet size is adapted in order to terminate the transmission before the cell change and to wait with the next packet for the cell change to have taken place.

3. The method as claimed claim 1, wherein, for a prediction which rules out packet loss during the transmission, the next packet group (burst) is transmitted in enforced fashion in order to ensure continual data transmission and to minimize breaks.

4. The method as claimed in claim 1, wherein, for a prediction about a shortfall below a particular quality for the connection, the transmission and/or the retransmission of a packet is delayed until the quality rises.

5. The method as claimed in claim 1, wherein, for a prediction about a shortfall below a particular quality, the packet size is reduced.

6. The method as claimed in claim 1, wherein, for a prediction about a shortfall below a particular quality, the number of parallel transactions is altered, with the number being increased and the size of the packets being reduced, in particular.

7. The method as claimed in claim 1, wherein, for a prediction about an excess over a particular quality, the burst rate is increased.

8. The method as claimed in claim 1, wherein the method for predicting qualities is a multidimensional stochastic algorithm which, in particular, uses covariance matrices, neural networks, genetic algorithms and/or simulated annealing.

9. The method as claimed in claim 1, wherein the algorithm calculates time-dependent statements about the quality.

10. The method as claimed in claim 1, wherein the received signal code power (RSCP), the position, the direction, the level, the speed, the received signal strength indicator (RSSI), the block size, the codec, the header compression method, SNR, the volume of traffic, the transmission delay, the block error rate, the bit error rate and/or carrier to interference ratio (C/I) are included in the calculation and are taken into account as output.

11. A mobile terminal computer system, comprising means for executing a method as claimed in claim 1.

12. A piece of software for a mobile terminal which has a WAP stack, wherein a method as claimed in claim 1 is implemented.

13. A data storage medium for a mobile terminal, having stored therein a piece of software as claimed in claim 12.