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donde [P.sub.HS-DSCH] y [P.sub.CPICH] son la potencia del canal HS-DSCH y CPICH respectivamente, [P.sub.tot,HDSPA] es la potencia total de la celda utilizando HSDPA, [I.sub.o] es la interferencia total que actua sobre el usuario y es posible encontrarla como se indica en (8)
HSDPA defines a new WCDMA channel, the high-speed downlink shared channel (HS-DSCH) that operates in a different way from existing WCDMA channels, but is only used for downlink communication to the mobile.
The HS-DSCH is evolved from the DSCH introduced in W-CDMA Release 99 to enable time-multiplexing different user transmissions.
During this process, the number of bits at the output of the channel coder is matched to the total number of bits of the HS-PDSCH set to which the HS-DSCH is mapped.
An example HS-DSCH channel coding is shown in Figure 1.
The effective code rate for any HS-DSCH configuration can be calculated if the transport block size, the number of HS-PDSCHs, and the modulation format are known.
The number of HS-PDSCHs or code channels that map onto a single HS-DSCH can vary dynamically between 1 and 15.
The second and third slots carry the HS-DSCH channel coding information, such as the transport block size, HARQ information, the RV and constellation versions, and the new data indicator.
The HS-DPCCH carries uplink feedback signalling related to the downlink HS-DSCH transmission.
A portion of available power for HSDPA operation is allocated to HS-DSCH. This power is further distributed between High Speed Physical Downlink Shared Channels (HS-PDSCHs) and High Speed Shared Control Channel (HS-SCCH).
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- HS & ID CFV
- HS Code
- HS GPA
- HS KerA
- HS Maxim
- HS1 binding protein
- HS1-associating protein X-1
- HS1-binding protein 1