RANDOM ACCESS CHANNEL MESSAGE BUNDLING

摘要

Disclosed herein are methods, computer program instructions and apparatus for performing random access procedures in a wireless communication system. A method includes receiving random access preamble sequences individual ones of which are associated with one of a plurality of time and frequency resources; and bundling random access preamble responses that are received for random access preambles in different time and frequency resources by transmitting a single transmitted downlink control channel assignment and indicating by using a radio network temporary identity that the assignment is an assignment for a preamble response message, and placing in an associated downlink shared channel message a plurality of preamble responses individual ones of which are indexed by the preamble sequences and frequency and time resources associated with each of the random access preambles. A further method includes transmitting a random access preamble using one of a plurality of time and frequency resources, the random access preamble including a preamble sequence; and receiving a downlink control channel assignment that indicates by using a radio network temporary identity that the assignment is an assignment for a preamble response message, and locating in an associated downlink shared channel message a corresponding preamble response indexed by the preamble sequence and frequency and time resources used for transmitting the random access preamble.