Random access

An apparatus comprising:

• at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
• receive, by an access node, information on not-responded random access requests and/or resources not used for random access requests, wherein the information comprises random access preambles;
• analyze the information for finding out resources used for unsuccessful random access attempts or not used for random access attempts, the resources being indicated by the random access preambles, and
• avoid allocating the resources used for unsuccessful random access attempts and/or the resources not used for random access requests for further random access request transmissions.

A method comprising:

• transmitting at least one first random access request by using a first preamble to a first handover target cell or to a first beam provided by a serving cell,
• if responded, carrying out a synchronization to the first handover target cell or to the first beam provided by the serving cell,
• if not responded, transmitting at least one second random access request by using at least one second preamble to at least one second handover target cell or to at least one second beam provided by the serving cell;
• storing information on not-responded random access requests and/or resources not used for random access requests, wherein the information comprises preambles used, and
• transmitting, after being synchronized, the stored information to the first handover target cell, the at least one second handover target cell and/or the serving cell for being used in random access resource allocation.