METHODS AND DEVICES FOR MULTIPLE ACCESS TRANSMISSION

Aspects of the present disclosure provide methods and devices for multiple access downlink transmissions from a network side component to one or more User Equipment (UE) or multiple access uplink transmissions from two or more UEs to a network side component. In a downlink direction, a network side device generates, for 5 each sub-carrier of the block of sub-carriers, a single constellation pointfrom one or more bits of a multi-bit symbol, from each of multiple layers. In an uplink direction, each UE maps at least one bit from one or more layers of multi-bit symbols onto a subset of a block of sub-carriers. The two or more UEs collectively transmit on the block of sub-carriers. 本公开的多个方面提供了用于从网络侧组件到个或多个用户设备(UE)的多址接入下行链路传输或者从两个或多个UE到网络侧组件的多址接入上行链路传输的方法和设备。在下行链路方向上，网络侧设备，对于子载波块中的每个子载波，生成来自多个层中的每层的多比特符号的个或多个比特中的单个星座点。在上行链路方向上，每个UE将多比特符号的个或多个层中的至少个比特映射到子载波块子集上。两个或多个UE共同在子载波块上发送。