Abstract
Method and apparatus are disclosed for determining a physical uplink power level for transmissions on a physical uplink channel. In one embodiment a random access channel (RACH) uplink message is transmitted. The RACH uplink message includes a RACH message power level and/or a downlink pathloss figure. A downlink message including a power offset value is received. The physical uplink power level is set for transmissions on the physical uplink channel based on the power offset value. In another embodiment a RACH uplink message is transmitted and a downlink message including a relative power offset value is received. The physical uplink power level for transmissions on the physical uplink channel is then set based on the relative power off set value.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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3G | 26/09/2014 | ISLD-201409-028 | INTERDIGITAL INC |
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Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
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Claim
1. A method for determining a physical uplink power level for transmissions on a physical uplink channel, the method comprising:
receiving a random access channel (RACH) preamble from a wireless transmit/receive unit (WTRU);
sending a power offset on a physical control channel to the WTRU, wherein the power offset indicates the physical uplink power level for transmissions by the WTRU on the physical uplink channel; and
receiving, from the WTRU, a RACH uplink signal on the physical uplink channel based on the power offset.
2. The method of claim 1, wherein the RACH preamble comprises at least one of a RACH message power level or a pathloss figure.
3. The method of claim 1, wherein the physical uplink channel is one of a physical uplink control channel or a physical uplink shared channel.
4. The method of claim 1, further comprising:
sending a broadcast channel message comprising an enable/disable indication, the enable/disable indication enabling or disabling transmission of the RACH preamble by the WTRU.
5. The method of claim 1, further comprising:
sending a message stopping the physical uplink channel transmissions by the WTRU.
6. The method of claim 1, wherein the RACH preamble is associated with a pathloss figure.
7. A network element configured to determine a physical uplink power level for transmissions on a physical uplink channel, comprising:
a receiver configured to receive a random access channel (RACH) preamble from a wireless transmit/receive unit (WTRU); and
a transmitter configured to transmit a power offset on a physical control channel to the WTRU, wherein the power offset indicates the physical uplink power level for transmissions by the WTRU on the physical uplink channel;
wherein the receiver is further configured to receive, from the WTRU, a RACH uplink signal on the physical uplink channel based on the power offset.
8. The network element of claim 7, wherein the RACH preamble comprises at least one of a RACH message power level or a pathloss figure.
9. The network element of claim 7, wherein the physical uplink channel is one of a physical uplink control channel or a physical uplink shared channel.
10. The network element of claim 7, further comprising:
the transmitter configured to transmit a broadcast channel message comprising an enable/disable indication, the enable/disable indication enabling or disabling transmission of the RACH preamble by the WTRU.
11. The network element of claim 7, further comprising:
the transmitter configured to transmit a message stopping the physical uplink channel transmissions by the WTRU.
12. The network element of claim 7, wherein the RACH preamble is associated with a pathloss figure.
Associated Portfolios
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.