Radio communication system with a displaced radio station
First Claim
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1. A radio communication system comprising:
- a concentrator;
at least one radio station displaced from said concentrator and connected thereto via a channel;
at least one terminal in communication with said radio station;
means for said radio station to exchange radio frames at a first rate with said terminal, said radio frames comprising D1 bits;
means for said concentrator to exchange channel frames at a second rate with said radio station, said channel frames comprising D2 bits;
said radio frames being multiplexed on said channel frames and said ratio between the first rate and the second rate being equal to D1/D2,means for reading said D1 bits in said radio frames,means for distributing said D1 bits over said D2 bits of said channel frame;
means for coding operational data with D2-D1 bits; and
means for inserting a code bit of said operational data in said radio frame after a selected bit and prior to completely reading a subsequent bit.
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Abstract
A radio communication system comprises at least a base station which is remote from a concentrator to which it is linked by a channel. The base station is intended to exchange via a radio link, at a first rate, radio frames with terminals while the radio frames are multiplexed on a channel frame to be transported by the channel at a second rate. In accordance with the invention, multiplexing is effected to minimize a resulting delay, to maximize a permitted transmission delay and thus maximize the range of base stations.
20 Citations
9 Claims
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1. A radio communication system comprising:
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a concentrator; at least one radio station displaced from said concentrator and connected thereto via a channel; at least one terminal in communication with said radio station; means for said radio station to exchange radio frames at a first rate with said terminal, said radio frames comprising D1 bits; means for said concentrator to exchange channel frames at a second rate with said radio station, said channel frames comprising D2 bits; said radio frames being multiplexed on said channel frames and said ratio between the first rate and the second rate being equal to D1/D2, means for reading said D1 bits in said radio frames, means for distributing said D1 bits over said D2 bits of said channel frame; means for coding operational data with D2-D1 bits; and means for inserting a code bit of said operational data in said radio frame after a selected bit and prior to completely reading a subsequent bit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A radio station for use in a radio communication system that comprises a concentrator displaced from and connectable to said radio station, at least one terminal in communication with said radio station, means for said radio station to exchange radio frames at a first rate with said terminal, said radio frames comprising D1 bits, means for said concentrator to exchange channel frames at a second rate with said radio station, said channel frames comprising D2 bits, said radio frames being multiplexed on said channel frames and said ratio between the first rate and the second rate being equal to D1/D2, said radio station comprising:
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means for reading said D1 bits in said radio frames, means for distributing said D1 bits over said D2 bits of said channel frame; means for coding operational data with D2-D1 bits; and means for inserting a code bit of said operational data in said radio frame after a selected bit and prior to completely reading a subsequent bit.
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9. A concentrator for use in a radio communication system that comprises a radio station displaced from and connectable to said concentrator and at least one terminal in communication with said radio station, means for said radio station to exchange radio frames at a first rate with said terminal, said radio frames comprising D1 bits, means for said concentrator to exchange channel frames at a second rate with said radio station, said channel frames comprising D2 bits, said radio frames being multiplexed on said channel frames and said ratio between the first rate and the second rate being equal to D1/D2, said concentrator comprising:
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means for reading said D1 bits in said radio frames, means for distributing said D1 bits over said D2 bits of said channel frame; means for coding operational data with D2-D1 bits; and means for inserting a code bit of said operational data in said radio frame after a selected bit and prior to completely reading a subsequent bit.
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Specification