Method, terminal and infrastructure for sharing channels by controlled time slot stealing in a multiplexed radio system
First Claim
1. A method of transmitting data in a digital radio system whereincalls form a main data source, and are transmitted in the form of data streams between terminal stations (11) and an infrastructure (10, 12) via traffic channels,said data streams comprise a succession of data blocks,a secondary data source is assigned to said main data source, andsaid data blocks of said main data source and data of said secondary data source are conveyed in a traffic channel assigned to said main data source,said method comprising the steps of:
- defining each of said data blocks transmitted by said main data source and said data from said Secondary data source by one of at least three levels of relative importance (NIp =0, 1 or 2;
NIs =0, 1 or
2) to determine respective relative importance levels;
making a comparison of said respective relative importance levels of said data from said secondary data source with said respective relative importance levels of said data blocks of said main data source; and
replacing one of said data blocks transmitted by said main data source with data from said secondary source on the basis of said comparison.
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Abstract
In multiplexed data radio communication, especially (but not exclusively) in TDMA mode, a method is provided of offering optimized intelligent traffic channel sharing services, enabling data from a secondary source to be conveyed on a traffic channel assigned to a main source (20, 30, 40). Each of the blocks transmitted by the main source and the data from the secondary data source are defined by one of the least three relative levels of importance (NIp =0, 1 or 2; NIs =0, 1, or 2). Data from the secondary source is substituted for a block transmitted by the main source as the result of a comparison of the respective relative levels of importance of data from the secondary source and the block from the main source.
84 Citations
14 Claims
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1. A method of transmitting data in a digital radio system wherein
calls form a main data source, and are transmitted in the form of data streams between terminal stations (11) and an infrastructure (10, 12) via traffic channels, said data streams comprise a succession of data blocks, a secondary data source is assigned to said main data source, and said data blocks of said main data source and data of said secondary data source are conveyed in a traffic channel assigned to said main data source, said method comprising the steps of: -
defining each of said data blocks transmitted by said main data source and said data from said Secondary data source by one of at least three levels of relative importance (NIp =0, 1 or 2;
NIs =0, 1 or
2) to determine respective relative importance levels;making a comparison of said respective relative importance levels of said data from said secondary data source with said respective relative importance levels of said data blocks of said main data source; and replacing one of said data blocks transmitted by said main data source with data from said secondary source on the basis of said comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification