Orthogonal transmit-receive diversity technique and device

将二进制码元信息流拆分为N个二进制码元串行分组。该方法进一步包括各串行分组二进制码元的串行-并行转换并将为了产生二进制码元串行-并行分组获得的串行分组重复N次。在各串行-并行分组的时间长度间隔内对二进制码元进行排列，然后应用根据上述二进制码元排列过程产生的正交码。将空间分集信道指定到由此获得的编码二进制码元串行-并行分组的各串行组。编码二进制码元的所有串行组，先前利用用户扩频码扩频的各编码二进制码元以及相应的空间分集信道的导频信号被同步发射。该方法还包括在接收端产生对应于发射端二进制码元串行分组的软判决串行分组。 An information stream of binary symbols is divided into serial packets of N binary symbols. The method further includes serial-parallel conversion of binary symbols in each serial packet and repeating N times the parallel packet thus obtained in order to form a serial-parallel packet of binary symbols. The binary symbols are permuted in the duration interval of each serial-parallel packet, and orthogonal codes generated according to the above binary symbol permutation are then applied. A space-diversity channel is then assigned to each serial group of the serial-parallel packet of coded binary symbols thus obtained. All the serial groups of coded binary symbols, each coded binary symbol having been previously spread by a user spreading code, as well as pilot signals of the corresponding space diversity channels are simultaneously transmitted. The method also involves generating on the reception side a serial packet of soft decisions that corresponds to the serial packet of binary symbols on the transmission side.