Communicating control data in a wireless communication network
The present invention relates to methods for sending or receiving control data in one or multiple uplink control channel resources of a wireless communication network and to corresponding devices. According to one embodiment of the invention a method of sending control data in one or multiple uplink control channel resources of a wireless communication network is provided. A wireless device receives, from a network node, information on a set of downlink component carriers configured for the wireless device. The wireless device receives, from a network node, an indication of the one or multiple uplink control channel resources. The wireless device maps first control data comprising control data for the set of configured downlink component carriers to a part of the one or multiple uplink control channel resources. And the wireless device maps second control data to a remaining part of the one or multiple uplink control channel resources.
1. A wireless device in a wireless communication network for sending control data, the wireless device comprising:
a radio interface for communicating with a base station in the wireless communication network;
processing circuitry operatively connected to the radio interface and configured to:
receive, from a network node, information on a set of downlink component carriers configured for the wireless device;
receive, from the network node, an indication of one or multiple uplink control channel resources;
map first control data comprising control data for the set of configured downlink component carriers to a first part of the one or multiple uplink control channel resources;
map second control data to a remaining part of the one or multiple uplink control channel resources; and
send the first and second control data in the one or multiple uplink control channel resources according to the mapping of the first and second control data.
2. The wireless device according to claim 1 , wherein the second control data comprises one or multiple reports each associated with one downlink component carrier of the set of configured downlink component carriers.
3. The wireless device according to claim 2 , wherein at maximum one report is mapped to an uplink control channel resource.
4. The wireless device according to claim 2 , wherein one report is mapped to multiple uplink control channel resources.
5. The wireless device according to claim 2 , wherein multiple reports are mapped to one uplink control channel resource.
6. The wireless device according to claim 2 , wherein the processing circuitry is further configured to receive, from a network node, an indication of a maximum number of reports to be included in the indicated one or multiple uplink control channel resources.
7. The wireless device according to claim 2 , wherein the processing circuitry is further configured to receive, from a network node, an indication of a maximum number of reports to be included in one of the uplink control channel resources.
8. The wireless device according to claim 1 , wherein the second control data is mapped according to a priority rule.
9. The wireless device according to claim 1 , wherein second control data having highest priority is mapped to the remaining part of the uplink control channel resource having the largest remaining part.
10. The wireless device according to claim 1 , wherein the first control data comprises HARQ feedback for the configured downlink component carriers and/or scheduling request of the wireless device.
11. The wireless device according to claim 1 , wherein first control data is mapped such that at least one of the uplink control channel resources is completely filled by first control data.
12. The wireless device according to claim 1 , wherein first control data is mapped such that first control data is evenly distributed over the indicated one or multiple uplink control channel resources.
13. A network node in a wireless communication network for receiving control data, the network node comprising:
a radio interface for communicating with a wireless device in the wireless communication network;
processing circuitry operatively connected to the radio interface and configured to:
send to a wireless device information on a set of downlink component carriers configured for the wireless device;
send to the wireless device an indication of the one or multiple uplink control channel resources;
map first control data comprising control data for the set of configured downlink component carriers to a first part of the one or multiple uplink control channel resources; and
map second control data to a remaining part of the one or multiple uplink control channel resources; and
receive the first and second control data in the one or multiple uplink control channel resources according to the mapping of the first and second control data.
14. The network node according to claim 13 , wherein the second control data comprises one or multiple reports each associated with one downlink component carrier of the set of configured downlink component carriers.
15. The network node according to claim 14 , wherein at maximum one report is mapped to an uplink control channel resource.
16. The network node according to claim 14 , wherein one report is mapped to multiple uplink control channel resources.
17. The network node according to claim 14 , wherein multiple reports are mapped to one uplink control channel resource.
18. The network node according to claim 14 , wherein the processing circuitry is further configured to send, to the wireless device, an indication of a maximum number of reports to be included in the indicated one or multiple uplink control channel resources.
19. The network node according to claim 14 , wherein the processing circuitry is further configured to send, to the wireless device, an indication of a maximum number of reports to be included in one of the uplink control channel resource.
20. The network node according to claim 13 , wherein the second control data is mapped according to a priority rule.
21. The network node according to claim 13 , wherein second control data having highest priority is mapped to the remaining part of the uplink control channel resource having the largest remaining part.
22. The network node according to claim 13 , wherein the first control data comprises HARQ feedback for the configured downlink component carriers and/or scheduling request of the wireless device.
23. The network node according to claim 13 , wherein first control data is mapped such that at least one of the uplink control channel resources is completely filled by first control data.
24. The network node according to claim 13 , wherein first control data is mapped such that first control data is evenly distributed over the indicated one or multiple uplink control channel resources.
25. A non-transitory computer-readable medium storing executable instructions that, when executed by processing circuitry in a wireless device in a wireless communication network, causes the wireless device to: receive, from a network node, information on a set of downlink component carriers configured for the wireless device; receive, from the network node, an indication of one or multiple uplink control channel resources; map first control data comprising control data for the set of configured downlink component carriers to a first part of the one or multiple uplink control channel resources; map second control data to a remaining part of the one or multiple uplink control channel resources; and send the first and second control data in the one or multiple uplink control channel resources according to the mapping of the first and second control data.
26. A non-transitory computer-readable medium storing executable instructions that, when executed by processing circuitry in a network node in a wireless communication network, causes the network node to: send to a wireless device information on a set of downlink component carriers configured for the wireless device; send to the wireless device an indication of the one or multiple uplink control channel resources; map first control data comprising control data for the set of configured downlink component carriers to a first part of the one or multiple uplink control channel resources; and map second control data to a remaining part of the one or multiple uplink control channel resources; and receive the first and second control data in the one or multiple uplink control channel resources according to the mapping of the first and second control data.
27. A method implemented by a wireless device in a wireless communication network for sending control data, the method comprising:
receiving, from a network node, information on a set of downlink component carriers configured for the wireless device;
receiving, from the network node, an indication of one or multiple uplink control channel resources;
mapping first control data comprising control data for the set of configured downlink component carriers to a first part of the one or multiple uplink control channel resources;
mapping second control data to a remaining part of the one or multiple uplink control channel resources; and
sending the first and second control data in the one or multiple uplink control channel resources according to the mapping of the first and second control data.
28. A method implemented by a network node in a wireless communication network for receiving control data, the method comprising:
sending to a wireless device information on a set of downlink component carriers configured for the wireless device;
sending to the wireless device an indication of the one or multiple uplink control channel resources;
mapping first control data comprising control data for the set of configured downlink component carriers to a first part of the one or multiple uplink control channel resources; and
map second control data to a remaining part of the one or multiple uplink control channel resources; and
receiving the first and second control data in the one or multiple uplink control channel resources according to the mapping of the first and second control data.