User terminal and radio communication method
摘要
說(shuō)明書
Upon arrival of LL traffic following sTTI index #6, the prohibit timer is still running, so the UE cannot transmit SRs using the sPUCCH in sTTIs #8 and #10. When the prohibit timer expires at the end of subframe #5, the UE transmits an SR using the sPUCCH in sTTI #12, which is the earliest SR possibility in the sTTIs. and starts the prohibit timer (=six sTTIs).
The prohibit timer expires at the end of sTTI #18. In following subframe #0, if the UE has none of the predetermined LL traffic but has different traffic (UL data), the UE may transmit an SR using the PUCCH, and start the prohibit timer (=5 ms).
As described above, according to embodiment 1.3.3, the UE can transmit SRs that pertain to predetermined LL traffic in STTIs, preferentially and quickly, and transmit SRs pertaining to other traffic in long TTIs.
In embodiment 1.3.3, for example, a long TTI priority control parameter (which may be referred to as “l(fā)ogicalChannelSR-long_TTI-r14/15”) may be introduced instead of the sTTI priority control parameter (logicalChannelSR-sTTI-r14/15). If, while this parameter is enabled, normal traffic is present in a related logical channel (or LCG), an SR to request resources for normal traffic may be transmitted in a long TTI.
If arbitrary LL traffic is present and/or this parameter is disabled. SRs are always transmitted in sTTIs.
