Interference Randomization of Control Channel Elements
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsKarl J. Molnar, Jung-Fu Cheng, Stefan Parkvall
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Abstract
A method and a radio base station for interleaving control channel data to be transmitted in a telecommunications system are described. The method comprises grouping the control channel elements CCE1-CCEn into a first order of control channel symbol groups, adding symbol groups comprising dummy values or zeros to the first order of control channel symbol groups based on a number of available symbol group positions for the shared control channel, interleaving the first order of the control channel symbol groups resulting in an a second order, and mapping the second order of control channel symbol groups to the available control channel transmission resources.
Claims30
A method for randomization of interference experienced by a shared control channel transmitted using control channel transmission resources from a base station where the shared control channel comprises control channel elements CCE1-CCEn, comprising:
- grouping the control channel elements CCE1-CCEn into a first order of control channel symbol groups;
- adding symbol groups comprising dummy values or zeros to the first order of control channel symbol groups based on a number of available symbol group positions for the shared control channel;
- interleaving the first order of the control channel symbol groups resulting in a second order of the control channel symbol groups;
- and
- mapping the second order of control channel symbol groups to the available control channel transmission symbol group positions.
A radio base station configured for randomization of interference experienced by a shared control channel transmitted by using control channel transmission resources from the base station, where the shared control channel comprises control channel elements CE1-CCEn, and where the base station comprises:
- a first processing circuit configured to group the control channel elements CCE1-CCEn into a first order of control channel symbol groups;
- a second processing circuit configured to add symbol groups comprising dummy values or zeros to the first order of control channel symbol groups based on a number of available symbol group positions for the shared control channel;
- a third processing circuit configured to interleave the first order of the control channel symbol groups resulting in an a second order for the control channel symbol groups;
- and
- a fourth processing circuit configured to map the second order of control channel symbol groups to the available control channel transmission symbol group positions.
Dependencies are inferred from the claim text.