Channel selection and channel-state information collision handling

A method in a base station for processing received reports of channel-state information and hybrid-ARQ ACK/NACK information in a Long-Term Evolution (LTE) wireless system, the method comprising:

• transmitting configuration data to a mobile terminal, the configuration data identifying a set of set of two or more uplink control channel resources for carrying simultaneous reports of channel-state information and more than two ACK/NACK bits;
• receiving a transmission from the mobile terminal in a first uplink subframe, while the mobile terminal is configured to report hybrid-ARQ ACK/NACK information using Physical Uplink Control Channel (PUCCH) Format 1b resources;
• associating the mobile terminal to a first uplink control channel resource from the set of uplink control channel resources, based on an information field in a first downlink control message previously transmitted to the mobile terminal;
• and
• decoding channel-state information and hybrid-ARQ ACK/NACK information for the mobile terminal, from the first uplink control channel resource, according to a format compatible with all of the uplink control channel resources in the set of uplink control channel resources.

A mobile terminal configured for simultaneous reporting of channel-state information and hybrid-ARQ ACK/NACK information in a Long-Term Evolution (LTE) wireless network, the mobile terminal comprising a receiver circuit, a transmitter circuit, and a processing circuit, wherein the processing circuit is adapted to:

• determine that a periodic channel-state information report and more than two ACK/NACK bits are scheduled for a first uplink subframe, while the mobile terminal is configured to report hybrid-ARQ ACK/NACK information using Physical Uplink Control Channel (PUCCH) Format 1b resources;
• select a first uplink control channel resource from a set of two or more pre-configured uplink control channel resources, based on an information field in a first downlink control message received by the mobile terminal and corresponding to the first uplink subframe;
• encode the periodic channel-state information report and the multiple ACK/NACK bits according to a format compatible with all of the uplink control channel resources in the set of pre-configured uplink control channel resources;
• and
• transmit the encoded periodic channel-state information report and multiple ACK/NACK bits in the first uplink control channel resource of the first uplink subframe.

A base station configured to process received reports of channel-state information and hybrid-ARQ ACK/NACK information in a Long-Term Evolution (LTE) wireless system, the base station comprising a transmitter circuit, a receiver circuit, and a processing circuit, wherein the processing circuit is configured to:

• send configuration data to a mobile terminal, via the transmitter circuit, the configuration data identifying a set of two or more uplink control channel resources for carrying simultaneous reports of channel-state information and hybrid-ARQ ACK/NACK information;
• receive a transmission from the mobile terminal, via the receiver circuit, in a first uplink subframe, while the mobile terminal is configured to report hybrid-ARQ ACK/NACK information using Physical Uplink Control Channel (PUCCH) Format 1b resources;
• associate the mobile terminal to a first uplink control channel resource from the set of uplink control channel resources, based on an information field in a first downlink control message previously transmitted to the mobile terminal;
• and
• decode channel-state information and hybrid-ARQ ACK/NACK information transmitted by the mobile terminal, from the first uplink control channel resource, according to a format compatible with all of the uplink control channel resources in the set of uplink control channel resources.