電子情報通信学会総合大会講演要旨
B-5-67
Investigation on Partial Subframe Transmission for Licensed-Assisted Access to Unlicensed Spectrum
Yu JIANG(DOCOMO Beijing Labs.)・○Hiroki HARADA(NTT DOCOMO)・Liu LIU(DOCOMO Beijing Labs.)・Satoshi NAGATA(NTT DOCOMO)・Huiling JIANG(DOCOMO Beijing Labs.)
By utilizing the LBT mechanism, LAA base stations (BS) could obtain the channel access opportunity just after the channel becomes idle, i.e. the start timing of the channel occupancy may not be aligned with the subframe boundary of LAA. In addition, due to the Maximum Channel Occupancy Time (MCOT) limitation, e.g. 4 ms in Japan, the ending position of the LAA data burst may be in the middle of a subframe. Design of LAA partial subframe transmission should jointly consider the spectrum efficiency as well as the detection or decoding complexity at user equipment (UE) side. We provides the numerical calculation and simulation results on partial subframe designs for comparison in this paper.