Data packet length indication for mobile telecommunications systems
US6956870B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2000 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Jan 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a data packet, e.g. a PDU of the UMTS, a length indicator field of variable granularity is created, depending on the exact length of the payload to be transmitted. An additional field is provided, a single bit in length, to indicate the granularity of the length indicator field. This increases the resolution of the header, whilst keeping low an overhead of extra field bits. The method comprises: assessing the length of the data to determine the appropriate units, from a plurality of possible units, in which the length should be expressed; setting the granularity field to define the appropriate units in which the length of the data is to be indicated; and setting the length indicator field to indicate the data length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.