Communication system

A method for a user equipment user equipment (UE) comprising:

• receiving, from a base station, first information indicating all of:
• a location in which a common search space of a physical downlink control channel (PDCCH) is located,
• one number, of three possible numbers, of resource blocks for the common search space, and
• a number of common search spaces per time resource,
• in a Physical Broadcast channel (PBCH) within a band which the UE uses, wherein the first information is represented by at most 10 bits.

A base station comprising:

• at least one memory storing instructions;
• and
• at least one processor configured to process the instructions to transmit, to a user equipment (UE) first information indicating all of:
• a location in which a common search space of a physical downlink control channel (PDCCH) is located,
• one number, of three possible numbers, of resource blocks for the common search space, and
• a number of common search spaces per time resource,
• in a Physical Broadcast channel (PBCH) within a band which the UE uses, wherein the first information is represented by at most 10 bits.

A user equipment (UE) comprising:

• at least one memory storing instructions;
• and
• at least one processor configured to process the instructions to receive, from a base station, first information indicating all of:
• a location in which a common search space of a physical downlink control channel (PDCCH) is located,
• one number, of three possible numbers, of resource blocks for the common search space, and
• a number of common search spaces per time resource,
• in a Physical Broadcast channel (PBCH) within a band which the UE uses,
• wherein the first information is represented by at most 10 bits.