发明名称 |
METHOD AND APPARATUS FOR SENDING FEEDBACK FOR A DOWNLINK SHARED SERVICE AND ESTIMATING A NUMBER OF WIRELESS TRANSMIT/RECEIVE UNITS |
摘要 |
A method and an apparatus for sending a signal on a contentious feedback channel for a downlink shared service and for estimating a number of wireless transmit/receive units (WTRUs) are disclosed. When a transmission criterion associated with a physical random access feedback channel (P-RAFCH) is satisfied, a physical resource is randomly selected among a plurality of physical resources assigned for the P-RAFCH and a pre-configured signal is sent using the selected physical resource. A Node-B receives the pre-configured signal from a plurality of WTRUs and calculates a number of the WTRUs based on a number of used physical resources. The transmission criterion is at least one of successful reception of a data packet on a downlink physical channel, successful reception of a data block on a data service, reception of a signaling command, occurrence of a measurement event, and failure to receive a transmission after a specified number of times. |
申请公布号 |
EP2342938(A2) |
申请公布日期 |
2011.07.13 |
申请号 |
EP20090792051 |
申请日期 |
2009.08.28 |
申请人 |
INTERDIGITAL PATENT HOLDINGS, INC. |
发明人 |
REZNIK, ALEXANDER;ZEIRA, ELDAD, M.;CAVE, CHRISTOPHER, R.;MARINIER, PAUL |
分类号 |
H04W74/08 |
主分类号 |
H04W74/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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