发明名称 |
SYSTEM AND METHOD FOR TRANSMISSION IN A GRANT-FREE UPLINK TRANSMISSION SCHEME |
摘要 |
A system and method includes implementing, by a base station (BS), a reliable ultra-low latency transmission mechanism in a grant-free uplink transmission scheme having defined therein contention transmission unit (CTU) access regions and a plurality of CTUs. Implementing the reliable ultra-low latency transmission mechanism includes defining a reliable ultra-low latency CTU (RULL-CTU) access region from a portion of the CTU access regions of the grant-free transmission scheme, defining an RULL-CTU mapping scheme by mapping at least a portion of plurality of CTUs to the RULL-CTU access region to define a plurality of RULL-CTUs, defining a reliable ultra-low latency user equipment (RULL-UE) mapping scheme by defining rules for mapping a plurality of RULL-UEs to the plurality of RULL-CTUs in an initial pattern for initial transmissions in a first transmission time interval (TTI), and a regrouped pattern for redundant transmissions in a second TTI subsequent to the first TTI. |
申请公布号 |
US2016219627(A1) |
申请公布日期 |
2016.07.28 |
申请号 |
US201514606665 |
申请日期 |
2015.01.27 |
申请人 |
AU Kelvin Kar Kin;ZHANG Liqing;MA Jianglei |
发明人 |
AU Kelvin Kar Kin;ZHANG Liqing;MA Jianglei |
分类号 |
H04W74/08 |
主分类号 |
H04W74/08 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
implementing, by a base station (BS), a reliable ultra-low latency (RULL) transmission mechanism in a grant-free uplink transmission scheme, the grant-free uplink transmission scheme having defined therein contention transmission unit (CTU) access regions and a plurality of CTUs; wherein implementing the reliable ultra-low latency transmission mechanism comprises:
defining a reliable ultra-low latency user equipment (RULL-UE) mapping scheme by mapping a plurality of RULL-UEs to the plurality of CTUs in an initial pattern for initial transmissions in a first transmission time interval (TTI), and mapping the plurality of RULL-UEs to the plurality of CTUs in a regrouped pattern for redundant transmissions in a second TTI subsequent to the first TTI, wherein the initial pattern is different from the regrouped pattern. |
地址 |
Ottawa CA |