CH per radio link, several parallel DPDCHs using different channelization codes [4] can be transmitted for the multi-code operation in the uplink dedicated physical channels. Table 4.8 Pilot Bit Patterns for Uplink DPCCH with Npilot = 7 and 8 Slot # Npilot =7 Npilot=8 Bit # 012345601234567 1111110111111110 1 100110110101110 2 1101101110111011 3 1100100110101010 4 1110101111101011 5 1111110111111110 6 111100111111010 110100111101010 The UTRA Physical Layer Design 8101110110111110 9 111111111111111 10 010111011101 11 111111110111 12 11010011101010 13 100111110101111 100111110101111 4.3.2.1 Spreading DPCCH/DPDCH In the uplink spreading principle of DPCCH and DPDCHs real-valued sequences of +1 and -1 represent the binary values '0' and '1', respectively. We spread the DPCCH to the chip rate by the channelization code Cc, and the nth DPDCH (or DPDCHn) to the rate by the channelization code cd,n* As illustrated in Figure 4.4, we can transmit one DPCCH and up to six parallel DPDCHs simultaneously, i.e. 1<n<6[8]. DPDCH1 DPDCH3 DPDCH5 SDPCH,n DPDCH2 DPDCH4 DPDCH6 DPCCH Figure 4.4 Spreading for uplink DPCCH and DPDCHs. After channelization, gain factors BC for DPCCH and Bd for all DPDCHs weight the real-valued spread signals, where at every instant in time, at least one of the values BC and Bd have the amplitude 1.0. Likewise after the weighting, we sum the stream of real- valued chips on the I- and Q-branches and then treat them as a complex-valued stream of chips. After we scramble these streams by the complex-valued scrambling code Sdpch.n the scrambling code application aligns with the radio frames, i.e. the first scram- bling chip corresponds to the beginning of a radio frame. The UMTS Network and Radio Access Technology Table 4.9 illustrates quantization steps of the B-values quantized into 4 bit words. After the weighting, we sum the stream of real-valued chips on the I- and Q-branches and then treat them as a complex-valued stream of chips. After we scramble these streams by the complex-valued scrambling code Sdpch