问个tds-cdma物理层协议的问题

TS25.123 10.1 Received starting position of the UpPCH (UpPCHPOS) (1.28 Mcps TDD) The received starting position of the UpPCH (UpPCHPOS) is derectly derived from measurement, it is equivalent to the received SYNC-UL Timing Deviation for 1.28 Mcps. Its accurecy and range/mapping is defined in section 9.2.1.10. The information field value, UpPCHPOS -FIELD_LEV_xxxx, is equivalent to the reported value SYNC_UL_TIME_DEV_xxxx. 10.2 Transmit Power Level Command for the RACH message (1.28 Mcps TDD) 10.2.1 Accuracy requirements Since this is a desired RX power at the node B and this is no measured value and the derivation of this value in the node B is implementation specific, accuracy requirements are not applicable. 10.2.2 Range/mapping PRXPRACH,des FIELD is given with a resolution of 0.5 dB with the range [-120,-80] dBm. PRXPRACH,des FIELD shall be transmitted in the FPACH. Table 10.1 Information field value Measured quantity value Unit PRXPRACH,des FIELD_LEV_00 PRXPRACH,des < -120 dBm PRXPRACH,des FIELD_LEV_01 -120 ? PRXPRACH,des < -119.5 dBm PRXPRACH,des FIELD_LEV_02 -119.5 ? PRXPRACH,des < -119 dBm … … … PRXPRACH,des FIELD_LEV_79 -81 ? PRXPRACH,des < -80.5 dBm PRXPRACH,des FIELD_LEV_80 -80.5 ? PRXPRACH,des < -80 dBm PRXPRACH,des FIELD_LEV_81 -80 ? PRXPRACH,des dBm