System and method for efficiently detecting the identification of a received signal
First Claim
1. In a system having a plurality of wireless transmit/receive units (WTRUs) which communicate with base station over a plurality of communication channels, a method for obtaining information from the base station on at least one of said plurality of communication channels;
- the method comprising;
receiving an RF signal; and
analyzing the RF signal at the physical layer to determine whether the pattern within the RF signal is similar to an expected pattern for a particular WTRU, and, if so, further processing the information transmitted with said RF signal for at least one of said plurality of communication channels.
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Abstract
A system and method in a wireless communication network that efficiently determine when a message is intended for a particular wireless transmit/receive unit (WTRU). In accordance with the present invention, each WTRU is configured to receive communications on multiple communication channels. The WTRU receives and processes incoming signals on the multiple communication channels at the physical layer for an indication of which, if any, of the multiple communication channels is intended for the WTRU. If the indication is consistent with an expected indication for that mobile unit, the mobile unit accesses the particular communication channel and processes the information being sent therein.
73 Citations
14 Claims
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1. In a system having a plurality of wireless transmit/receive units (WTRUs) which communicate with base station over a plurality of communication channels, a method for obtaining information from the base station on at least one of said plurality of communication channels;
- the method comprising;
receiving an RF signal; and
analyzing the RF signal at the physical layer to determine whether the pattern within the RF signal is similar to an expected pattern for a particular WTRU, and, if so, further processing the information transmitted with said RF signal for at least one of said plurality of communication channels. - View Dependent Claims (2, 3)
- the method comprising;
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4. A method of operating a wireless transmit/receive unit (WTRU), in which the WTRU monitors an RF signal for purposes of obtain a control message, the RF signal including a plurality of channels, with a control message being provided in at least one of said plurality of channels, the method comprising:
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monitoring the RF signal at a physical level without fully parsing the plurality of channels; and
obtaining an indication of one of said control messages intended for the particular WTRU based on general characteristics of the RF signal at the physical layer.
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5. A wireless transmit/receive unit (WTRU) which communicates with a base station via a plurality of communication channels, the base station transmitting a plurality of messages, each message having an encoded preamble;
- the WTRU comprising;
a preamble processor, which processes the preamble at the physical layer to determine whether the preamble matches the identification (ID) of the WTRU; and
a control message processor, which processes the control message only if said determination is positive. - View Dependent Claims (6, 7, 8, 9, 10, 11)
- the WTRU comprising;
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12. In a system having a plurality wireless transmit/receive units (WTRUs) which communicate with a base station via a plurality of communication channels, the base station transmitting a plurality of messages, each message having an encoded preamble;
- the base station comprising;
a preamble generator, for generating a preamble having a unique identification at the physical layer;
a control message generator, for generating a control message;
a combiner for combining said preamble with said control message; and
an RF upconverter and transmitter for transmitting said combined message. - View Dependent Claims (13, 14)
- the base station comprising;
Specification