Transmission of buffer status reports on multiple component carriers

A method of transmitting a multi-bit scheduling request (SR) from a user equipment (UE);

• comprising:
• receiving, at the UE, a radio resource control (RRC) message from an base station, wherein the RRC message indicates that the multi-bit SR is to be jointly scheduled across a plurality of uplink component carriers (CCs);
• generating, at the UE, the multi-bit SR based at least on the RRC message received from the base station;
• and
• transmitting, from the UE, the multi-bit SR on each uplink CC of the plurality of the uplink CCs.

A method of transmitting multi-bit scheduling requests (SRs) from a user equipment (UE);

• comprising:
• receiving, at the UE, a radio resource control (RRC) message from an base station,
• wherein the RRC message indicates that uplink component carriers (CCs) of the UE are to be assigned to a plurality of uplink CC groups, and that a multi-bit SR of a CC group is to be jointly scheduled across a plurality of CCs of the respective CC group;
• generating, at the UE, a multi-bit SR for each group of the plurality of uplink CC groups, wherein the multi-bit SR includes a first and a second part, and wherein the multi-bit SR is jointly scheduled across a sub-set of the uplink CCs associated with the corresponding uplink CC group;
• transmitting, from the UE, the multi-bit SR generated for each group to the base station.

A user equipment, comprising:

• a memory;
• and
• a processor in communication with the memory and configured to:
• receive a radio resource control (RRC) message from an base station, wherein the RRC message indicates that uplink component carriers (CCs) of the UE are to be assigned to a plurality of uplink CC groups;
• assign the uplink CCs to the plurality of uplink CC groups;
• generate a multi-bit scheduling request (SR) for each group of the plurality of uplink CC groups;
• and
• transmit the multi-bit SR generated for each group of the plurality of uplink CC groups to the base station.