Method and apparatus for control of enhanced dedicated channel transmissions
First Claim
1. A method for controlling enhanced dedicated channel (E-DCH) transmissions, the method comprising:
- (a) receiving a scheduling grant;
(b) processing the scheduling grant to calculate a serving grant;
(c) determining whether a hybrid automatic repeat request (H-ARQ) process for scheduled data and scheduled data are both available, and if so determining whether a serving grant exists;
(d) calculating a remaining power based on a maximum allowed power;
(e) restricting E-DCH transport format combination (E-TFC) based on the remaining power; and
(f) selecting an E-TFC and generating a protocol data unit (PDU) for transmission over an E-DCH.
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Abstract
A method and apparatus for controlling enhanced dedicated channel (E-DCH) transmissions are disclosed. An enhanced uplink medium access control (MAC-e/es) entity processes a received scheduling grant to calculate a serving grant. The MAC-e/es entity determines whether both a hybrid automatic repeat request (H-ARQ) process for scheduled data and scheduled data are available. If an H-ARQ process for scheduled data and scheduled data are available, the MAC-e/es entity determines whether a serving grant exists. The MAC-e/es entity calculates a remaining power based on maximum allowed power and restricts an E-DCH transport format combination (E-TFC) based on the remaining power. The MAC-e/es entity selects an E-TFC using the serving grant and generates a MAC-e protocol data unit. The MAC-e/es entity may process the received scheduled grant is at each transmission time interval or may store the received scheduled grant in a grant list until there is E-DCH data to transmit.
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Citations
24 Claims
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1. A method for controlling enhanced dedicated channel (E-DCH) transmissions, the method comprising:
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(a) receiving a scheduling grant;
(b) processing the scheduling grant to calculate a serving grant;
(c) determining whether a hybrid automatic repeat request (H-ARQ) process for scheduled data and scheduled data are both available, and if so determining whether a serving grant exists;
(d) calculating a remaining power based on a maximum allowed power;
(e) restricting E-DCH transport format combination (E-TFC) based on the remaining power; and
(f) selecting an E-TFC and generating a protocol data unit (PDU) for transmission over an E-DCH. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. In a wireless communication system including a wireless transmit/receive unit (WTRU) and a Node-B wherein the WTRU is allocated with an enhanced dedicated channel (E-DCH) for uplink transmission, an enhanced uplink medium access control (MAC-e) entity in the WTRU for controlling E-DCH transmissions, the MAC-e comprising:
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a serving grant processing entity configured to receive a scheduling grant and process the scheduling grant to calculate a serving grant;
an E-DCH transport format combination (E-TFC) selection entity configured to calculate a remaining power based on a maximum allowed power, restrict an E-TFC based on the remaining power, and select an E-TFC;
a multiplexing and transmission sequence number (TSN) setting entity configured to generate a MAC-e protocol data unit (PDU); and
a hybrid automatic repeat request (H-ARQ) entity configured to control a plurality of H-ARQ processes for transmission of the MAC-e PDU via one of the H-ARQ processes. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification