Abstract
On a transmitting side control channels represented by nodes of a tree structure are allocated each of the control channels comprising at least one control channel element carrying information for a respective identifier used to detect a control channel of the control channels. The allocation is performed by limiting allocation of highest level control channels of the control channels the highest level control channels being represented by nodes of the tree structure at a highest level of the tree structure. On a receiving side a control channel is searched for by decoding the allocated control channels wherein the searching is limited for the highest level control channels.
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Specification Information
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Resource configuration
Product
Use Cases
Wireless communication
Services
Claim
1. A method comprising: allocating control channels represented by nodes of a tree structure, each of the control channels comprising at least one control channel element carrying information for a respective identifier used to detect a control channel of the control channels, wherein the allocation is performed by limiting allocation of highest level control channels of the control channels, the highest level control channels being represented by nodes of the tree structure at a highest level of the tree structure.
2. The method of claim 1, comprising: increasing allocation of lower level control channels of the control channels, the lower level control channels being represented by nodes of the tree structure at lower levels of the tree structure.
3. The method of claim 1 or 2, comprising: transmitting the allocated control channels to user equipments by distributing the allocated control channels to sub-carriers over a system bandwidth.
4. The method of claim 2, wherein the higher level control channels are combined to the lower level control channels.
5. The method of claim 2, wherein the allocation is increased more the lower the level of the tree structure.
6. A method comprising: searching for a control channel by decoding control channels represented by nodes of a tree structure, by using an identifier, each of the control channels comprising at least one control channel element carrying information for a respective identifier used to detect a control channel of the control channels, wherein the searching is limited for highest level control channels of the control channels, the highest level control channels being represented by nodes of the tree structure at a highest level of the tree structure.
7. The method of claim 6, wherein the searching is increased for lower level control channels of the control channels, the lower level control channels being represented by nodes of the tree structure at lower levels of the tree structure.
8. The method of claim 6 or 7, wherein the control channels are received from a network device.
9. The method of any one of claims 6 to 8, wherein the searching is performed beginning with lowest level control channels represented by nodes of the tree structure at a lowest level of the tree structure
10. A device comprising: an allocation unit configured to allocate control channels represented by nodes of a tree structure, each of the control channels comprising at least one control channel element carrying information for a respective identifier used to detect a control channel of the control channels, wherein the allocation unit is configured to limit allocation of highest level control channels of the control channels, the highest level control channels being represented by nodes of the tree structure at a highest level of the tree structure
11. The device of claim 10, wherein the allocation unit is configured to increase allocation of lower level control channels of the control channels, the lower level control channels being represented by nodes of the tree structure at lower levels of the tree structure
12. The device of claim 10 or 11, comprising: a transmitting unit configured to transmit the allocated control channels to user equipments by distributing the allocated control channels to sub-carriers over a system bandwidth
13. The device of any one of claims 10 to 12, wherein the device comprises an evolved node B
14. A device comprising: a decoding unit configured to search for a control channel by decoding control channels represented by nodes of a tree structure, by using an identifier, each of the control channels comprising at least one control channel element carrying information for a respective identifier used to detect a control channel of the control channels, wherein the decoding unit is configured to limit searching for highest level control channels of the control channels, the highest level control channels being represented by nodes of the tree structure at a highest level of the tree structure
15. The device of claim 14, wherein the decoding unit is configured to increase searching for lower level control channels of the control channels, the lower level control channels being represented by nodes of the tree structure at lower levels of the tree structure
16. The device of claim 14 or 15, comprising a receiving unit configured to receive the control channels from a network device
17. The device of any one of claims 14 to 16, wherein the device comprises a user equipment
18. A computer program product including a program for a processing device, comprising software code portions for performing the steps of any one of claims 1 to 13 when the program is run on the processing device
19. The computer program product according to claim 18, wherein the computer program product comprises a computer- readable medium on which the software code portions are stored.
20. The computer program product according to claim 18, wherein the program is directly loadable into an internal memory of the processing device.']
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SUMMARY
ClaimChart-WO2008135575A1-STO
Patent number:WO2008135575A1
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.