METHOD AND APPARATUS FOR SELECTIVELY ENABLING RECEPTION OF DOWNLINK SIGNALING CHANNELS
In a wireless communication system including a wireless transmit/receive unit (WTRU) and at least one Node-B, a method and apparatus is used to selectively enable reception of at least one downlink (DL) enhanced uplink (EU) signaling channel established between the WTRU and the Node-B(s). During the operation of an enhanced dedicated channel (E-DCH), the WTRU monitors at least one DL EU signaling channel established between the WTRU and the Node-B(s) only when it is necessary, based on the WTRU's knowledge of at least one established standard procedure. The WTRU coordinates and consolidates DL signaling channel reception requirements of a plurality of channel allocation and/or data transmission procedures carried out by the WTRU in accordance with the established standard procedure. The WTRU determines whether to enable reception of at least one specific DL signaling channel based on the consolidated DL signaling channel reception requirements.
1 . A wireless transmit/receive unit (WTRU) comprising:
a transmitter configured to transmit enhanced uplink data;
a receiver configured to receive an acknowledgment (ACK) or a negative acknowledgment (NACK) on a hybrid automatic repeat request (H-ARQ) information channel (HICH) during a predetermined period after the transmission of the enhanced uplink data;
the receiver is further configured to receive configuration information; and
a processor configured to enable the receiver to periodically receive at least an enhanced uplink absolute grant channel (E-AGCH) and an enhanced uplink relative grant channel (E-RGCH);
the processor configured to control the receiver to discontinue reception of the E-AGCH and the E-RGCH based on configuration information and between the periods that the receiver is enabled to receive the E-AGCH and the E-RGCH.
2 . The WTRU of claim 1 wherein the processor is further configured to control the transmitter to transmit scheduling information including an amount of enhanced dedicated channel (E-DCH) data stored in a buffer.
3 . The WTRU of claim 1 wherein the processor is further configured to control the transmitter to transmit scheduling information including available enhanced uplink transmission power information.
4 . A method for channel resource allocation comprising:
transmitting enhanced uplink data;
receiving an acknowledgment (ACK) or a negative acknowledgment (NACK) on a hybrid automatic repeat request (H-ARQ) information channel (HICH) during a predetermined period after the transmission of the enhanced uplink data;
receiving configuration information;
receiving at least an enhanced uplink absolute grant channel (E-AGCH) and an enhanced uplink relative grant channel (E-RGCH) periodically; and
discontinuing reception of the E-AGCH and the E-RGCH based on configuration information and between the periods that at least the E-AGCH and the E-RGCH are received.
5 . The method of claim 4 further comprising transmitting scheduling information including an amount of enhanced dedicated channel (E-DCH) data stored in a buffer.
6 . The method of claim 4 further comprising transmitting scheduling information including available enhanced uplink transmission power information.