surement cannot be obtained by the DM-RS physical signal because the DM-RS is associated with the PUSCH or PUCCH physical channels. The measurement performed by the eNB entity allows it to set the frequency location of the resource allocated to the mobile for the uplink direction, and the modulation and coding scheme. 4.1.6. Physical channels 4.1.6.1. Downlink The physical broadcast channel (PBCH) transmits the BCH transport channel containing the system information corresponding to the MIB message. The physical control format indicator channel (PCFICH) transmits the control format indicator (CFI) indicating the size of the physical downlink control channel (PDCCH). The physical HARQ indicator channel (PHICH) transmits the HARQ indicator (HI) which indicates a positive (ACK) or negative (NACK) acknowledgment for the uplink data received, in the physical uplink shared channel (PUSCH). Radio Interface Procedures The PDCCH physical channel transmits downlink control information (DCI): - allocation of resources and the modulation and coding scheme, for the data in the PDSCH and PUSCH physical channels; - transmission power of the PUCCH and PUSCH physical channels. The physical downlink shared channel (PDSCH) transmits the DL-SCH and PCH transport channels. The physical multicast channel (PMCH) transmits the MCH transport channel. 4.1.6.2. Uplink The physical random access channel (PRACH) contains a preamble used by the mobile when it needs to perform a random access, which is the first stage of the connection of the mobile to the eNB entity. The PUCCH physical channel uses three types of format to transport the uplink control information (UCI): - formats 1, la and 1b transport the UCI information relating to the scheduling request to obtain resource on the PUSCH physical channel and to the positive (ACK) or negative (NACK) acknowledgment, corresponding to the HARQ mechanism, for the data received on the PDSCH physical channel; - formats 2, 2a and 2b transport UCI information relating to the signal status reports for 