Method for cell selection and cell reselection in a time division synchronous code division multiple access (td-scdma) system

A method for providing cell selection in time division synchronous code division multiple access (TD-SCDMA) systems, the method comprising:

• selecting a plurality of universal absolute radio frequency channel numbers (UARFCNs) from a database based on a previously camped cell information;
• determining a received signal strength indication (RSSI) and synchronization downlink (SyncDL) correlation energies associated with the RSSI;
• arranging the plurality of UARFCNs into a first list and a second list based on a location area update (LAU) information;
• scanning the plurality of UARFCNs to detect if one or more cells are available from the first list and the second list;
• and
• selecting a serving cell based on a signal to noise ratio (SNR) threshold associated with the serving cell.

A user equipment (UE) comprising:

• a processor configured to:
• generate an ordered list of universal absolute radio frequency channel numbers (UARFCNs) based on received signal strength indicator (RSSI) measurements associated with one or more UARFCNs;
• calculate synchronization downlink (SyncDL) correlation energies associated with the UARFCNs;
• arrange the one or more UARFCNs based on the RSSI measurements and the associated SyncDL correlation energies;
• scan the one or more UARFCNs to detect if one or more serving cells are available to be camped on;
• and
• select a serving cell based on a signal to noise ratio (SNR) threshold associated with the UARFCN.

A user equipment (UE) comprising a processor configured to:

• select a plurality of universal absolute radio frequency channel numbers (UARFCNs) from a database based on a previously camped cell information;
• determine a received signal strength indication (RSSI) and synchronization downlink (SyncDL) correlation energies associated with the RSSI;
• arrange the plurality of UARFCNs into a first list and a second list based on a location area update (LAU) information;
• scan the plurality of UARFCNs to detect if one or more cells are available from the first list and the second list;
• and
• select a serving cell based on a signal to noise ratio (SNR) threshold associated with the serving cell.