UL Control Information Classification. Control and signaling for network access i.e. access probing Control and signaling for synchronization i.e. ranging Control and signaling for traffic UL HARQ ACK signaling CQI report CSI signaling BW request Upper layer control signaling
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Detailed format of CQI report is instructed by BS.
The resource between CQI channel and ACK channel may be shared, and the detailed design is FFS.CQI Resource Allocation Mode
CQI/Precoding control message format "A"
CQI/Precoding control message format "B"
CQI/Precoding control message format "C"
CQI/Precoding control message format "D"
Insert the following text in SDD Chapter 11 (Physical Layer):
11.x UL Control Structure
11.x.1 UL Control Information
11.x.1.1 UL control information classification
Control information carried on uplink includes:
Control and signaling for network access;
Control and signaling for uplink synchronization;
Control and signaling for traffic;
Upper layer control signaling.
11.x.1.2 Mapping of UL control information
11.x.2 UL Physical Control Channel
11.x.2.1 Non-synchronized ranging channel
Non-synchronized ranging channel carries network entry and handover probing without fully uplink synchronization.
Non-synchronized ranging channel occupies localized sub-carriers. Long CP equal to maximal RTD plus maximal delay spread and guard time after non-synchronized ranging channel is equal to maximal RTD.
11.x.2.2 Synchronized ranging channel
Synchronized ranging channel carries probing from MSs achieving fully uplink synchronization.
The synchronized ranging channel uses the same OFDM symbol structure with the traffic channel and occupies distributed sub-carriers.
11.x.2.3 HARQ ACK channel
HARQ ACK channels are divided into groups multiplexed in FDM. In each HARQ ACK group, HARQ ACK signaling is mapping to the orthogonal sequence and carried on the same time-frequency resource of group.
11.x.2.4 Feedback channel
Feedback channel contains Uplink CQI/Precoding channel and Uplink Sounding channel.
Multiple types of CQI report are supported, such as wideband CQI report, sub-band CQI report, MCW CQI report, PMI report and so on. The mode, timing, resource assignment of CQI report are instructed by specific signal from BS.
11.x.3 Transmission of Control Channel