Patent ID: 11924882
Assignee: NOKIA TECHNOLOGIES OY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A method comprising:
determining an initial waiting time at an access device of a network;
transmitting an information indicating the determined initial waiting time to a terminal device for setting a time offset for a retransmission with a selected resource indicator for a non-scheduled access to the network;
receiving a first scheduled transmission from the terminal device;
sending a feedback to the terminal device;
wherein the feedback comprises at least one of the following indications:
an indicator of a layer 2 error caused by a random access channel resource collision of two or more terminal devices;
an indication of an acknowledgement or an indication that new data can be sent; and
an indication of a non-acknowledgement or the lack of a new data indication or an indication that no new data shall be sent; and

wherein the feedback is for the terminal device to adjust the time offset based on the feedback by using a parameter, wherein the time offset is adjusted by incrementing the parameter if the feedback indicates a non-acknowledgement for layer 2; by decrementing the parameter if the feedback indicates an acknowledgement; and wherein the time offset is maintained if the feedback indicates a non-acknowledgement for layer 1.