Digital fixed radio access system providing local mobility
AssigneeTelefonaktiebolaget LM Ericsson
InventorsDag E. Akerberg, Petrus van de Berg
Life of this patent
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Abstract
An arrangement for radio communication includes a first radio station or base station, a number of second radio stations, and a number of subscriber stations. The second radio stations each include a digital radio arrangement and first and second devices for, respectively, communicating with the first station and with a subscriber station. The first device includes a long-range antenna for communication with the first station. The second device includes an antenna for communication with at least one of the subscriber stations. The digital radio arrangement includes a radio switch having a common transceiver providing wireless communication with the first station as well as with a subscriber station.
Claims30
An arrangement for radio communication comprising:
- at least one first radio station;
- a plurality of subscriber stations;
- and
- a plurality of second radio stations, each second radio station comprising:
- at least one digital radio arrangement, said digital radio arrangement including radio switch means having a common transceiver for providing wireless communication with a first radio station and at least one subscriber station,
- first means for communicating with said first radio station, said first means comprising at least one long-range antenna, and
- second means for communicating with a subscriber radio station, said second means comprising at least one short-range antenna for local coverage.
A method for radio communication between first, second, and third Time Division Multiple Access (TDMA) radio communication devices, wherein information is exchanged in frames in accordance with a set of predetermined rules, each frame comprising a plurality of time slots, wherein at said third communication devices a first half of said time slots of each frame is assigned for receiving information and a second half of said time slots of each frame is assigned for transmitting information such that time slots correspondingly located in said first halves and said second halves form duplex communication channels, and at said first and second communication devices a first half of each frame is used for transmissions to said third communication devices and a second half of each frame is used for receptions from said third communication devices, said method comprising the steps of:
- transmitting user data in at least one time slot of a first frame half in accordance with said predetermined set of rules at a first communication device;
- receiving user data from said first communication device in at least one time slot of a first frame half and retransmitting said received user data in at least one further time slot of a first frame half in accordance with said predetermined set of rules, at a second communication device;
- and
- receiving user data from said second communication device in at least one receive time slot of a first frame half at a third communication device.
Dependencies are inferred from the claim text.