Patent ID: 11864175
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A communication system in which a user equipment may communicate wirelessly with a radio base station, the user equipment comprising a transceiver and being arranged so that a number of scheduling requests that the user equipment will repeatedly transmit in relation to same uplink data on an uplink control channel while not having been granted uplink resources is limited in that the user equipment is adapted to monitor whether a maximum limit has been reached, the user equipment being characterized in that the user equipment is adapted to:
initiate a random access transmission on a random access channel in response to said maximum limit having been reached;
initiate a measure used for limiting the number of transmitted scheduling requests;
check whether the measure has reached a threshold value representing the maximum limit;
when no uplink resources have been granted and the measure has reached the threshold value: transmit the random access transmission on the random access channel;, the radio base station being configured to:
determine whether the user equipment has access to the dedicated uplink control channel resources for the transmission of the scheduling request, wherein the radio base station has received the random access transmission from the user equipment; and
sending a power control command to the user equipment in response to determining that the user equipment has access to the dedicated uplink control channel resources for the transmission of the scheduling request.