Asymmetric Cooperation in Downlink Cellular Networks with Relay stations
AssigneeMitsubishi Electric Research Laboratories, Inc.
InventorsNatasha Devroye, Neelesh B. Mehta, Andreas F. Molisch
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Abstract
In a wireless network using cooperative relaying, a set of messages are broadcast from a base station to a set of relay stations during a first phase of a scheduling interval. During a second phase of the scheduling interval, the set of messages from the set of relay stations are broadcasting cooperatively to a set of mobile stations, while broadcasting. While broadcasting, a time and a rate and a size of each message is optimized during the first phase, and a rate of each message is optimized during the second phase.
Claims14
A method for communicating in a wireless network using cooperative relaying, comprising:
- broadcasting, during a first phase of a scheduling interval, a set of messages from a base station to a set of relay stations;
- broadcasting cooperatively, during a second phase of the scheduling interval, the set of messages from the set of relay stations to a set of mobile stations;
- and
- optimizing jointly a time and a rate and a size of each message during the first phase, and a rate of each message during the second phase while broadcasting during the first phase and while broadcasting during the second phase.
A system for communicating in a wireless network using cooperative relaying, comprising:
- a base station configured to broadcast during a first phase of a scheduling interval a set of messages;
- a set of relay stations configured to receive the set of messages and to broadcast cooperatively during a second phase of the scheduling interval the set of messages from the set of relay stations to a set of mobile stations;
- and
- means for optimizing jointly a time and a rate and a size of each message during the first phase, and a rate of each message during the second phase while broadcasting during the first phase and while broadcasting during the second phase.
Dependencies are inferred from the claim text.