Mobile communication method, radio access network apparatus, and mobile station for cell (re)selection processing based on a result of RSRQ

摘要

Appropriate “idle mode cell reselection” is achieved by changing a threshold used to perform “idle mode cell reselection” between a case of performing RSRQ measurement in six resource blocks and a case of performing “Wideband RSRQ measurement.” A mobile communication method according to the present invention includes a step of causing a radio base station eNB or a radio network controller RNC to broadcast not only existing parameters used to perform cell reselection processing based on a result of the RSRQ measurement in six resource blocks, but also wideband parameters used to perform “idle mode cell reselection” based on a measurement result of “Wideband RSRQ measurement.”

主权项

1. A mobile communication method comprising:
a step A of causing a radio access network apparatus to broadcast not only existing parameters used to perform cell reselection processing based on a result of RSRQ (Reference Signal Received Quality) measurement in six resource blocks, but also wideband parameters used to perform cell reselection processing based on a result of RSRQ measurement in a bandwidth larger than six resource blocks; a step B of causing a mobile station capable of the RSRQ measurement in the bandwidth larger than six resource blocks to use the wideband parameters to perform the cell reselection processing based on the result of the RSRQ measurement in the bandwidth larger than six resource blocks; and a step C of causing a mobile station incapable of the RSRQ measurement in the bandwidth larger than six resource blocks to use the existing parameters to perform the cell reselection processing based on the result of the RSRQ measurement in six resource blocks.