Abstract
The invention claims method and apparatus for transmitting uplink feedback information by a WTRU in a Cell_FACH state . Uplink feedback information such as a channel quality information (CQI) and hybrid automatic retransmission request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) information may be transmitted to the universal terrestrial radio access network (UTRAN) by a wireless transmit/receive unit (WTRU). A E-DCH resource for UL transmission is received an assignment of a contention-free access is received and a configuration from the network to send UL feedback information is also received. In a different embodiment uplink feedback information is transmitted based on an existance of at least a predetermined condition. Explizit and implicit triggers.
A method and apparatus for control of uplink feedback information in contention based wireless communications is disclosed. Uplink feedback information such as a channel quality information and hybrid automatic retransmission request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) information may be transmitted to the universal terrestrial radio access network (UTRAN) by a wireless transmit/receive unit (WTRU) based on explicit and implicit triggers. Providing more frequent and robust information relating to the channel conditions and HARQ status allows the UTRAN to more efficiently utilize the radio resources for downlink data transmissions.
A method and apparatus for control of uplink feedback information in contention based wireless communications is disclosed. Uplink feedback information such as a channel quality information and hybrid automatic retransmission request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) information may be transmitted to the universal terrestrial radio access network (UTRAN) by a wireless transmit/receive unit (WTRU) based on explicit and implicit triggers. Providing more frequent and robust information relating to the channel conditions and HARQ status allows the UTRAN to more efficiently utilize the radio resources for downlink data transmissions.
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| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| 3G | 14/09/2009 | ISLD-200910-006 | INTERDIGITAL INC |
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| 3G | 30/11/2012 | ISLD-201210-008 | INTERDIGITAL INC | No | Family Member | ||||
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