Random access channel response handling with aggegrated component carriers
AssigneeCore Wireless Licensing S.a.r. I
InventorsJianke Fan, Juha S. Korhonen, Mikko J. Rinne, Esa M. Malkamaki
Life of this patent
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Abstract
Disclosed herein are methods, computer program instructions and apparatus for performing random access procedures in a wireless communication system. A method includes receiving at a network access node, in different time and frequency resources that are allocated for preamble transmission, and in different ones of a plurality of component carriers, a plurality of random access requests from individual ones of a plurality of user equipments; and transmitting a corresponding plurality of random access responses in a time and frequency resource of a single component carrier.
Claims20
A method, comprising:
- receiving at a network access node, in different time and frequency resources that are allocated for preamble transmission, and in different ones of a plurality of component carriers, a plurality of random access requests from individual ones of a plurality of user equipments;
- and
- transmitting a corresponding plurality of random access responses in a time and frequency resource of a single component carrier.
The method as in any one of the preceding claims, where the single component carrier is selected freely by the network access node from a set of component carriers.
The method as in any one of the preceding claims, where the corresponding plurality of random access responses are for a first type of user equipment and for a second type of user equipment, and where there is at least one random access response for one of the second type of user equipment that is placed in a message at a location that need not be read by the first type of user equipment.
The method as in any one of the preceding claims, that is performed as a result of the execution of program instructions stored in a computer readable medium.
An apparatus, comprising:
- a controller configured to operate with a wireless receiver and a wireless transmitter, said controller further configured to respond to a reception in different time and frequency resources that are allocated for preamble transmission, and in different ones of a plurality of component carriers, a plurality of random access requests from individual ones of a plurality of user equipments and to transmit a corresponding plurality of random access responses in a time and frequency resource of a single component carrier.
The apparatus as in any one of the preceding claims, where the corresponding plurality of random access responses are for a first type of user equipment and for a second type of user equipment, and where there is at least one random access response for one of the second type of user equipment that is placed in a message padding portion that need not be read by the first type of user equipment.
A method, comprising:
- receiving at a network access node, in a time and frequency resource associated with a first frequency band, a random access request from a user equipment;
- and
- transmitting a corresponding random access response in a time and frequency resource associated with a second frequency band.
Dependencies are inferred from the claim text.