Random access channel response handling with aggegrated component carriers
View Patent ↗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.
1. A method comprising:
transmitting, by a user equipment to a network access node, in a time and frequency resource allocated for preamble transmission, and in one of a plurality of uplink component carriers selected by the user equipment, a random access request; and
receiving a random access response that is aggregated with other random access responses for other user equipments in a time and frequency resource of a single downlink component carrier,
wherein the aggregated random access response comprises responses to a plurality of random access requests from individual ones of a plurality of user equipments.
2. The method of claim 1 , wherein the random access response is received on a physical downlink shared channel.
3. The method of claim 1 , wherein the aggregated random access response is received via a primary component carrier.
4. A non-transitory computer-readable storage medium storing instructions, when executed on a processor, cause an apparatus to perform at least the steps of:
transmitting, by a user equipment to a network access node, in a time and frequency resource allocated for preamble transmission, and in one of a plurality of uplink component carriers selected by the user equipment, a random access request; and
receiving a random access response that is aggregated with other random access responses for other user equipments in a time and frequency resource of a single downlink component carrier,
wherein the aggregated random access response comprises responses to a plurality of random access requests from individual ones of a plurality of user equipments.
5. The non-transitory computer-readable storage medium of claim 4 , wherein the random access response is received on a physical downlink shared channel.
6. The non-transitory computer-readable storage medium of claim 4 , wherein the aggregated random access response is received via a primary component carrier.