Method for Uplink Beam Indication for Wireless Communication System with Beamforming

A User Equipment (UE) comprising:

• a receiver that receives a beam management (BM) configuration in a beamforming wireless communication network, wherein the BM configuration comprises allocated reference signal (RS) resources for a BM procedure;
• a beam management circuit that performing the BM procedure, wherein the UE receives a beam indication table from the base station, wherein the beam indication table comprises mappings between beam indication states and corresponding uplink reference signal indexes;
• and
• a transmitter that transmits an uplink data based on the beam indication table, wherein the UE maps each uplink reference signal index to a UE spatial filter for the uplink data transmission.

A method comprising:

• transmitting a beam management (BM) configuration to a user equipment (UE) by a base station in a beamforming wireless communication network, wherein the BM configuration comprises allocated reference signal (RS) resources for a BM procedure;
• establishing and transmitting a beam indication table in accordance with a result of the BM procedure, wherein the beam indication table comprises mappings between beam indication indexes and corresponding uplink reference signal indexes;
• and
• receiving an uplink transmission from the UE based on the beam indication table, wherein the base station maps each uplink reference signal index to a BS RX spatial filter for the uplink transmission.