Abstract
A method of managing carrier aggregation for a multi-radio access technology (RAT) wireless transmitter/receiver unit (WTRU) is disclosed. The method may include: receiving, by the WRTU over a primary channel associated with a RAT of a first type, provisioning information for provisioning a supplementary channel associated with a RAT of a second type; establishing the supplementary channel associated with the RAT of the second type based on the received provisioning information; and wirelessly exchanging, by the WRTU, first data associated with a communication over the primary channel via the RAT of the first type, while wireless exchanging second data associated with the communication over the supplementary channel via the RAT of the second type.
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Claim
1. A method of managing a multi-radio access technology (multi-RAT) wireless transmitter/receiver unit (WTRU), the method comprising:
configuring, by the WTRU, a primary radio connection of a RAT of a first type associated with a radio resource control (RRC) connection;
receiving, by the WTRU, configuration information to configure a secondary radio connection of a RAT of a second type;
configuring, by the WTRU, the secondary radio connection of the RAT of the second type based on the received configuration information of the RAT of the second type, wherein the primary radio connection and the secondary radio connection are associated with the RRC connection;
receiving, by the WTRU, control information related to the RAT of the second type using the primary radio connection;
determining that a radio link failure has occurred on the RAT of the second type; and
transmitting an RRC message using resources of the RAT of the first type based on the determined radio link failure.
2. The method of claim 1, wherein:
the first type of RAT is one of: (1) a wideband code division multiple access (WCDMA) RAT; (2) a high speed packet access (HSPA) RAT; (3) a high speed downlink packet access (HSDPA) RAT; (4) a high speed uplink packet access (HSUPA) RAT; or (5) a long term evolution (LTE) RAT; and
the second type of RAT is different from the first type of RAT.
3. The method of claim 1, further comprising:
configuring a primary channel associated with the RAT of the first type and a supplementary channel associated with the RAT of the second type; and
receiving information over the RRC connection to control radio resources of the RATs of the first and second types.
4. The method of claim 1, further comprising:
transmitting a message based on a RRC protocol of the RAT of the second type only using resources of the RAT of the second type, wherein the message corresponds to a RRC reconfiguration of the RAT of the second type.
5. The method of claim 1, further comprising sending a notification over the primary radio connection on condition that the radio link failure has occurred on the secondary radio connection of the RAT of the second type.
6. The method of claim 1, further comprising:
receiving, on the RAT of the first type, a message requesting the WTRU to perform a random access procedure on the RAT of the second type; and
initiating the random access procedure using resources of the RAT of the second type based on the message received on the RAT of the first type.
7. The method of claim 1, wherein:
the configuration information received via the primary radio connection includes parameters for accessing a network of the second type; and
the parameters include at least one of: a frequency band or a set of one or more security parameters.
8. The method of claim 1, further comprising:
receiving, on the RAT of the second type, a message requesting the WTRU to perform a random access procedure on the RAT of the first type; and
initiating the random access procedure using resources of the RAT of the first type based on the message received on the RAT of the second type.
9. The method of claim 1, wherein:
the configuring of the primary radio connection includes establishing at least one signaling radio bearer (SRB) of the RRC connection;
the receiving of the configuration information includes, receiving configuration information over the at least one SRB of the RRC connection; and
the receiving of the control information includes receiving the control information over the at least one SRB of the RRC connection that uses the primary radio connection.
10. The method of claim 9, further comprising communicating, by the WTRU over the at least one SRB of the RRC connection via any of: the primary radio connection or the secondary radio connection that are associated with a single RRC state.
11. A multi-radio access technology (multi-RAT) wireless transmitter/receiver unit (WTRU), comprising:
a processor configured to:
configure a primary radio connection of a RAT of a first type associated with a radio resource control (RRC) connection, and
configure a secondary radio connection of a RAT of a second type based on received configuration information of the RAT of the second type, wherein the primary radio connection and the secondary radio connection are associated with the RRC connection; and
a wireless transmit/receive unit configured to:
receive the configuration information to configure the secondary radio connection of the RAT of the second type, and
receive control information related to the RAT of the second type using the primary radio connection,
wherein:
the processor is configured to determine that a radio link failure has occurred on the RAT of the second type, and
the wireless transmit/receive unit is configured to transmit an RRC message using resources of the RAT of the first type based on the determined radio link failure.
12. The multi-RAT WTRU of claim 11, wherein:
the first type of RAT is one of: (1) a wideband code division multiple access (WCDMA) RAT; (2) a high speed packet access (HSPA) RAT; (3) a high speed downlink packet access (HSDPA) RAT; (4) a high speed uplink packet access (HSUPA) RAT; or (5) a long term evolution (LTE) RAT; and
the second type of RAT is different from the first type of RAT.
13. The multi-RAT WTRU of claim 11, wherein:
the processor is configured to configure a primary channel associated with the RAT of the first type and a supplementary channel associated with the RAT of the second type; and
the wireless transmit/receive unit is configured to receive information over the RRC connection associated with the RAT of the first type to control radio resources of the RATs of the first and second types.
14. The multi-RAT WTRU of claim 11, wherein:
the wireless transmit/receive unit is configured to transmit a message based on a RRC protocol of the RAT of the second type only using resources of the RAT of the second type, and
the message corresponds to a RRC reconfiguration of the RAT of the second type.
15. The multi-RAT WTRU of claim 11, wherein the wireless transmit/receive unit is configured to send a notification over the primary radio connection on condition that the radio link failure has occurred on the secondary radio connection of the RAT of the second type.
16. The multi-RAT WTRU of claim 11, wherein:
the processor is configured to establish at least one signaling radio bearer (SRB) of the RRC connection; and
the wireless transmit/receive unit is configured to receive the configuration and the control information over the at least one SRB of the RRC connection that uses the primary radio connection.
17. The multi-RAT WTRU of claim 11, wherein:
the configuration information, received via the RAT of the first type, includes parameters for accessing a network of the second type, and
the parameters include at least one of: a frequency band or a set of one or more security parameters.
18. The multi-RAT WTRU of claim 11, wherein:
the wireless transmit/receive unit is configured to receive, on the RAT of the first type, a message requesting the WTRU to perform a random access procedure on the RAT of the second type; and
the processor is configured to initiate the random access procedure using resources of the RAT of the second type based on the message received on the RAT of the first type.
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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.
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