Relay station, base station and method for extending a coverage area of a base station in a radio network
First Claim
Patent Images
1. A method for implementing relay in a relay station in a wireless communication network, the method comprising:
- forwarding control information from a base station to a mobile station or forwarding control information from the mobile station to the base station according to an instruction from the base station;
receiving a communication control message from said base station;
regenerating a communication control message for the mobile station based on said communication control message from said base station;
sending the regenerated communication control message to said mobile station on a first channel according to said communication control message from said base station;
receiving signals from a mobile station on a second channel according to said communication control message from said base station;
judging whether the strength of said signals from the mobile station is greater than a predetermined threshold or not;
if the strength of said signals from the mobile station is greater than the predetermined threshold, obtaining the status information concerning the mobile station from said signals; and
sending a status report message to said base station on a third channel according to said communication control message from said base station, said status report message including said status information concerning the mobile station.
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Abstract
A method for extending a coverage of a base station in a wireless communication network is disclosed, characterized in that a relay station transfers control information and communication related information between the base station and the mobile station according to an indication of the base station.
8 Citations
24 Claims
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1. A method for implementing relay in a relay station in a wireless communication network, the method comprising:
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forwarding control information from a base station to a mobile station or forwarding control information from the mobile station to the base station according to an instruction from the base station; receiving a communication control message from said base station; regenerating a communication control message for the mobile station based on said communication control message from said base station; sending the regenerated communication control message to said mobile station on a first channel according to said communication control message from said base station; receiving signals from a mobile station on a second channel according to said communication control message from said base station; judging whether the strength of said signals from the mobile station is greater than a predetermined threshold or not; if the strength of said signals from the mobile station is greater than the predetermined threshold, obtaining the status information concerning the mobile station from said signals; and sending a status report message to said base station on a third channel according to said communication control message from said base station, said status report message including said status information concerning the mobile station. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A relay station for implementing relay in a wireless communication network, the relay station configured to forward control information from a base station to a mobile station or to forward control information from the mobile station to the base station according to an instruction from the base station, the relay station comprising:
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at least one receiver configured to receive a communication control message from said base station; at least one processor; the at least one processor configured to regenerate a communication control message to create a regenerated communication control message for the mobile station based on said communication control message from said base station; at least one transmitter configured to send the regenerated communication control message to said mobile station on a first channel according to said communication control message from said base station; wherein the at least one receiver is configured to receive signals from a mobile station on a second channel according to said communication control message from said base station; wherein the at least one processor is configured to judge whether the strength of said signals from the mobile station is greater than a predetermined threshold or not; wherein the at least one processor is configured to obtain status information concerning the mobile station from said signals if the strength of said signals from the mobile station is greater than the predetermined threshold; and wherein the at least one transmitter is operative to send a status report message to said base station on a third channel according to said communication control message from said base station, said status report message including said status information concerning the mobile station. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method for utilizing a relay station for communication with a base station in a wireless communication network, comprising:
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sending a communication control message to a relay station; receiving a status report message from said relay station on a first channel and receiving signals from a mobile station on a second channel according to said communication control message; obtaining first status information representing a channel status of a channel between said mobile station and said relay station and a second status information representing a channel status of a channel between said relay station and a base station from signals from said relay station, and obtaining third status information representing a channel status of a channel between said mobile station and said base station from signals from said mobile station; selecting a suitable communicating path for communication with said mobile station based on said first status information, said second status information and said third status information; and controlling the communication with said mobile station according to said selected suitable communicating path. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A base station, comprising:
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at least one transmitter configured to send a communication control message to a relay station; at least one receiver configured to receive a status report message from said relay station and to receive signals from a mobile station according to said communication control message; and
,at least one processor configured to obtain first status information representing a channel status of a channel between said mobile station and said relay station and second status information representing a channel status of a channel between said relay station and said base station from signals from said relay station, and to obtain third status information representing a channel status of a channel between said mobile station and said base station from signals from said mobile station; wherein the at least one processor is configured to select a suitable communicating path for communication with said mobile station based on said first status information, said second status information and said third status information; and wherein the at least one processor is configured to control the communication with said mobile station according to said selected suitable communicating path. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification