Method for indicating physical cell identifier and apparatus

A method comprising:

• sending, by a base station, a first broadcast message, wherein the first broadcast message carries a physical cell identifier (PCI) information of a target cell;
• and
• sending, by the base station, a second broadcast message, wherein the second broadcast message carries an extended PCI of the target cell, and wherein the extended PCI identifies the target cell alone or in combination with a PCI of the target cell identifies the target cell;
• and
• wherein the PCI of the target cell corresponds to a first scrambling code sequence, and wherein the extended PCI of the second broadcast message is scrambled using the first scrambling code sequence.

A terminal device, comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to:
• determine, according to a first broadcast message sent by a base station, a physical cell identifier (PCI) of a target cell in which the terminal device is located;
• determine a first scrambling code according to the PCI of the target cell;
• and
• determine an extended PCI of the target cell according to a second broadcast message sent by the base station and according to the first scrambling code, wherein the extended PCI identifies the target cell alone or in combination with the PCI of the target cell identifies the target cell.

A base station, comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to:
• send a first broadcast message, wherein the first broadcast message carries physical cell identifier (PCI) information of a target cell;
• and
• send a second broadcast message, wherein the second broadcast message carries an extended PCI of the target cell, and wherein the extended PCI identifies the target cell alone or in combination with a PCI of the target cell identifies the target cell;
• and
• wherein the PCI of the target cell corresponds to a first scrambling code sequence, and wherein the extended PCI of the second broadcast message is scrambled using the first scrambling code sequence.