A METHOD FOR PERFORMING RANDOM ACCESS BETWEEN A USER EQUIPMENT AND A NETWORK NODE IN A WIRELESS COMMUNICATION NETWORK
Random access is performed between a user equipment and a network node in a wireless communication network. A random access preamble is transmitted to the base station. A random access response is received. A contention resolution message is transmitted. At least one discontinuous monitoring cycle is configured on a downlink channel for receiving a response to the transmitted contention resolution message And a content resolution message is received during an active period of the discontinuous monitoring cycle. The disclosure also relates to an apparatus configured to implement said method.
1 . A method of wireless communication by a user equipment for random access procedure between said user equipment and a network node in a wireless communication network, the method comprising:
transmitting a random access preamble to said base station,
receiving a random access response,
transmitting a contention resolution message,
configuring at least one discontinuous monitoring cycle on a downlink channel for receiving a response to said transmitted contention resolution message, and
receiving a content resolution message during an active period of said discontinuous monitoring cycle.
2 . The method according to claim 1 wherein discontinuous monitoring is configured based on a configuration received from said network node.
3 . The method according to claim 2 wherein discontinuous monitoring configuration is received in a system information message.
4 . The method according to claim 2 wherein discontinuous monitoring configuration is received in a Random access Response message comprising Msg3 retransmission uplink grant.
5 . The method according to claim 2 wherein discontinuous monitoring configuration is received in both a Random access Response message comprising a Msg3 retransmission grant, and system information message.
6 . The method according to claim 1 wherein discontinuous monitoring on downlink channel cycle is performed while a contention resolution timer is running.
7 . The method according to claim 1 wherein discontinuous monitoring on downlink channel is performed from the expiration of a first contention resolution timer associated with a transmission of a first Msg3 message and the start of a second contention resolution timer associated with the retransmission of said Msg3 message.
8 . An apparatus for performing random access between said apparatus and a network node in a wireless communication network, the apparatus comprising a processor coupled with a non-transitory memory comprising computer program instructions stored thereon, said instructions being configured to perform operations comprising:
transmitting a random access preamble to said network node,
receiving a random access response,
transmitting a contention resolution message,
configuring at least one discontinuous monitoring cycle on a downlink channel for receiving a response to said transmitted contention resolution message, and
receiving a content resolution message.
9 . The apparatus according to claim 8 , wherein the apparatus is a user equipment.
10 . A wireless communication system comprising a user equipment for performing random access between an apparatus and a network node in a wireless communication network, the apparatus comprising a processor coupled with a non-transitory memory comprising computer program instructions stored thereon, said instructions being configured to perform operations comprising:
transmitting a random access preamble to said network node,
receiving a random access response,
transmitting a contention resolution message,
configuring at least one discontinuous monitoring cycle on a downlink channel for receiving a response to said transmitted contention resolution message, and
receiving a content resolution message.
11 . (canceled)
12 . A non-transitory computer-readable information medium comprising computer-executable instructions for performing wireless communication by a user equipment for random access procedure between said user equipment and a network node in a wireless communication network, by performing operations comprising:
transmitting a random access preamble to said base station,
receiving a random access response,
transmitting a contention resolution message,
configuring at least one discontinuous monitoring cycle on a downlink channel for receiving a response to said transmitted contention resolution message, and
receiving a content resolution message during an active period of said discontinuous monitoring cycle.