| 摘要 |
<p>A method for selecting an optimum path in an MMR communication system is provided to enable RSs within a cell to measure a correlation value and a CQI value of a CQICH for a UE and report the values to an MMR-BS when the UE registered in the MMR-BS enters the RS region, and enable the MMR-BS to set a proper RS path, thereby providing the UE with a data service of high transmission efficiency. If a UE(User Equipment) is registered within a cell, an MMR-BS(Multi-hop Mobile Relay-Base Station) allocates a CQICH(Channel Quality Indicator Channel) to the UE and loads a CQICH_Allocation_IE on a map before broadcasting the IE(S550). The UE1 periodically transmits a measure value CQI of a downlink preamble to the allocated CQICH(S555). The MMR-BS measures and stores the maximum correlation value and CQI value for CQICH #0 of the UE1, and compares the stored values with correlation values and CQI values for CQICH #0 reported from RSs(Relay Systems)(S570). The MMR-BS determines an RS, having the maximum value among the correlation values measured and reported by the RSs, as a data transmitting/receiving path of the UE1(S585).</p> |
