| 摘要 |
Techniques are provided for improving broadcast efficiency in a multihop network having a base station which transmits a downlink signal, at least one relay station and at least one node associated with the relay station. The relay station relays or retransmits the downlink signal it receives from the base station to nodes associated with the relay station. The base station monitors downlink transmission metrics provided by each of the nodes associated with the relay station. Each downlink transmission metric provides a measure of the downlink signal received by a particular node from the base station. Based on the downlink transmission metrics, the base station can decide if the relay station should continue to relay or retransmit the downlink signal to the nodes associated with the relay station.
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