Radio communication system
First Claim
1. A radio communication system for performing relay communication by radio, comprising:
- a plurality of radio base stations each comprising a scheduler to arrange a schedule of assignment of a slot into which data is to be inserted in a radio frame;
a terminal to perform communication with at least one of the radio base stations through a connection; and
a relay station to perform relay forwarding of the radio frame exchanged through the connection, the relay station comprising a scheduler control section to give an instruction of the schedule to the scheduler,wherein the scheduler control section gives the instruction to the scheduler so as not to generate duplicate slot assignment, in which the whole or a part of data is assigned to the same slot in radio frames to be sent at same timing;
wherein the scheduler control section sends a request for determining a switching condition for slot assignment to at least one of the plurality of radio base stations; and
once the scheduler receives the request for determining a switching condition, negotiation is made among the plurality of radio base stations to determine the switching condition, and the scheduler performs scheduling according to the switching condition determined among the plurality of radio base stations, so as not to generate the duplicate slot assignment when the radio frame is sent, to implement autonomous slot assignment among the plurality of radio base stations.
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Accused Products
Abstract
A radio communication system for preventing transmission and receiving data from colliding with each other in radio relay communication. The radio communication system includes a plurality of radio base stations each having a scheduler for arranging a schedule of assignment of a slot into which data is to be inserted in a radio frame, a terminal for performing communication with at least one of the radio base stations through a connection, and a relay station for performing relay forwarding of the radio frame exchanged through the connection, the relay station including a scheduler control section for giving an instruction of the schedule to the scheduler. The scheduler control section gives the instruction to the scheduler so as not to generate duplicate slot assignment, in which the whole or a part of data is assigned to the same slot in radio frames sent at the same timing.
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Citations
16 Claims
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1. A radio communication system for performing relay communication by radio, comprising:
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a plurality of radio base stations each comprising a scheduler to arrange a schedule of assignment of a slot into which data is to be inserted in a radio frame; a terminal to perform communication with at least one of the radio base stations through a connection; and a relay station to perform relay forwarding of the radio frame exchanged through the connection, the relay station comprising a scheduler control section to give an instruction of the schedule to the scheduler, wherein the scheduler control section gives the instruction to the scheduler so as not to generate duplicate slot assignment, in which the whole or a part of data is assigned to the same slot in radio frames to be sent at same timing; wherein the scheduler control section sends a request for determining a switching condition for slot assignment to at least one of the plurality of radio base stations; and once the scheduler receives the request for determining a switching condition, negotiation is made among the plurality of radio base stations to determine the switching condition, and the scheduler performs scheduling according to the switching condition determined among the plurality of radio base stations, so as not to generate the duplicate slot assignment when the radio frame is sent, to implement autonomous slot assignment among the plurality of radio base stations. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A radio base station for performing radio communication, comprising:
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a receiving section to receive a schedule instruction from a relay station to perform relay forwarding of a radio frame; and a scheduler to arrange a schedule of assignment of a slot into which data is to be inserted in a radio frame, according to the schedule instruction so as not to generate duplication slot assignment, in which the whole or a part of data is assigned to the same slot in radio frames to be sent at same timing; wherein once the scheduler receives a request for determining a slot-assignment switching condition from the relay station, negotiation is made among a plurality of the radio base stations to determine the switching condition, and the scheduler performs scheduling according to the switching condition determined among the plurality of the radio base stations, so as not to generate the duplicate slot assignment when the radio frame is sent, to implement autonomous slot assignment among the plurality of the radio base stations. - View Dependent Claims (8, 9, 10)
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11. A relay station for performing relay communication by radio, comprising:
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a scheduler control section to give an instruction to a plurality of radio base stations when the plurality of radio base stations send data through connections, so as not to generate duplicate slot assignment, in which the whole or a part of data is assigned to the same slot in radio frames sent at same timing; and a transmission section to transmit an instruction signal generated by the scheduler control section to the plurality of radio base stations; wherein the scheduler control section sends a request for determining a slot-assignment switching condition to at least one of the plurality of radio base stations such that negotiation is autonomously made among the plurality of radio base stations to determine the switching condition for slot assignment and scheduling is performed according to the switching condition so as not to generate the duplicate slot assignment. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification