Method and apparatus for performing and reporting measurements by user equipment configured with multiple carriers in mobile communication systems
摘要
說明書
ENB provides UE with a value of the onDurationTimer via a message, RRCConnectionReconfiguration. For example, it is assumed that the value of the timer is defined as 5 PDCCH subframes and the short DRX cycle is 2 frames. In this case, in FDD, all the subframes 2100 are considered to be the PDCCH subframe. Therefore, since the onDurationTimer started to operate, when 5 subframes have passed by, the timer expires. That is, the onDuration time interval is 5 ms. After two frames of the DRX cycle 2110 have passed by, the onDurationTimer re-starts to operate. In TDD, the downlink subframe 2115 and special subframe 2120 are considered to be the PDCCH subframe 2130. Since the onDurationTimer started due to not the PDCCH subframe but due to the uplink subframes 2120, after 11 ms has elapsed, 5 PDCCH subframes are counted. That is, the onDuration time interval is 11 ms. In this case, after two frames of the DRX cycle 2140 have passed by, the onDurationTimer re-starts to operate as described above. Although the embodiment of
When the LTE system employs the CA technology, the individual serving cells can have different duplex. In addition, although the individual serving cells employ TDD, each subframe interval can have different uplink and downlink subframes according to TDD configurations. Rel-12 LTE standard can employ a technology for dynamically altering uplink and downlink wireless resources according to an amount of uplink and downlink traffic. This is called a flexible TDD configuration in the present disclosure. Specific subframes can be downlink subframes or uplink subframes according to conditions. These specific subframes are called flexible subframes.
