Abstract
A method for scheduling a first and a second channel in a subframe includes dividing transmission resources needed for the first channel into a first set of resource groups and assigning the resource groups of the first set to subelements in the subframe in a predetermined fashion. The method also includes assigning a symbol value to all subelements in the subframe which have not been assigned a resource group of the first set and dividing transmission resources needed for the second channel into a second set of resource groups. Additionally the method includes assigning in a predetermined fashion the resource groups of the second set to subelements in the subframe by means of said symbol values.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
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| 5G | 18/05/2017 | ISLD-201704-020 | ERICSSON INC | Yes | Basis Patent | ||||
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Specification Information
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S1
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Technologies
Resource configuration Scheduling
Product
Base Station (eNB/gNB)
Use Cases
Wireless communication
Services
Collision Mitigation
Claim
1. A method for use in a wireless cellular communications system, according to which method a controlling node controls transmissions to and from users in a cell, and transmissions are made in subframes with a certain extension in time and over a certain amount of subcarriers (Îx94f) in frequency, said subframes comprising a number of subelements, the method being used for scheduling a first and a second channel in one and the same subframe, the method comprising the steps of:
dividing transmission resources needed for the first channel into a first set of resource groups;
assigning the resource groups of the first set to subelements in the subframe in a predetermined fashion, wherein each subelement comprises a group of four time-frequency resource elements;
assigning a numeric value to all subelements in the subframe which have not been assigned a resource group of the first set, wherein a number of subelements that have not been assigned a resource group of the first set is equal to N;
dividing transmission resources needed for the second channel into a second set of resource groups; and
assigning, in a predetermined fashion, the resource groups of the second set to subelements in the subframe by means of said numeric values, wherein assigning the resource groups of the second set comprises:
determining a respective numeric value for one or more resource groups of the second set based on the number of subelements (N) in the subframe which have not been assigned a resource group of the first set; and
assigning each resource group of the second set to a subelement associated with a respective numeric value determined for that resource group.', 'dividing transmission resources needed for the first channel into a first set of resource groups;', 'assigning the resource groups of the first set to subelements in the subframe in a predetermined fashion, wherein each subelement comprises a group of four time-frequency resource elements;', 'assigning a numeric value to all subelements in the subframe which have not been assigned a resource group of the first set, wherein a number of subelements that have not been assigned a resource group of the first set is equal to N;', 'dividing transmission resources needed for the second channel into a second set of resource groups; and', 'assigning, in a predetermined fashion, the resource groups of the second set to subelements in the subframe by means of said numeric values, wherein assigning the resource groups of the second set comprises:
determining a respective numeric value for one or more resource groups of the second set based on the number of subelements (N) in the subframe which have not been assigned a resource group of the first set; and
assigning each resource group of the second set to a subelement associated with a respective numeric value determined for that resource group.', 'determining a respective numeric value for one or more resource groups of the second set based on the number of subelements (N) in the subframe which have not been assigned a resource group of the first set; and', 'assigning each resource group of the second set to a subelement associated with a respective numeric value determined for that resource group.
2. The method of claim 1, according to which the resource groups of the second set are assigned to subelements in the subframe in such a manner that they are maximally spaced apart from each other in frequency.
3. The method of claim 1, according to which the resource groups of the second set are assigned to subelements in the subframe such that the resource groups of the second set are spaced apart from each other in frequency in a predetermined manner.
4. The method of claim 1, according to which the first and the second channel are control channels.
6. The method of claim 1, applied to an E-UTRAN system, Long Term Evolution.
7. The method of claim 4, according to which the control channels comprise a Physical Control Format Indicator Channel (PCFICH) and a Physical Hybrid ARQ Indicator Channel (PHICH).
8. A scheduling node for use in a cellular communications system in which transmissions to and from users are made in subframes which have a certain extension in time and which extend over a certain amount of subcarriers (Îx94f) in frequency, with the subframes comprising a number of subelements, the scheduling node being adapted to schedule a first and a second channel in one and the same subframe, with the scheduling comprising:
a memory configured to store processor instructions;
a processor configured, when executing the processor instructions, to perform:
dividing transmission resources needed for the first channel into a first set of resource groups;
assigning the resource groups of the first set to subelements in the subframe in a predetermined fashion, wherein each subelement comprises a group of four time-frequency resource elements;
assigning a numeric value to all subelements in the subframe which have not been assigned a resource group of the first set, wherein a number of subelements that have not been assigned a resource group of the first set is equal to N;
dividing transmission resources needed for the second channel into a second set of resource groups; and
assigning, in a predetermined fashion, the resource groups of the second set to subelements in the subframe by means of said numeric values, wherein assigning the resource groups of the second set comprises:
determining a respective numeric value for one or more resource groups of the second set based on the number (N) of subelements in the subframe which have not been assigned a resource group of the first set; and
assigning each resource group of the second set to a subelement associated with a respective numeric value determined for that resource group.', 'a memory configured to store processor instructions;', 'a processor configured, when executing the processor instructions, to perform:
dividing transmission resources needed for the first channel into a first set of resource groups;
assigning the resource groups of the first set to subelements in the subframe in a predetermined fashion, wherein each subelement comprises a group of four time-frequency resource elements;
assigning a numeric value to all subelements in the subframe which have not been assigned a resource group of the first set, wherein a number of subelements that have not been assigned a resource group of the first set is equal to N;
dividing transmission resources needed for the second channel into a second set of resource groups; and
assigning, in a predetermined fashion, the resource groups of the second set to subelements in the subframe by means of said numeric values, wherein assigning the resource groups of the second set comprises:
determining a respective numeric value for one or more resource groups of the second set based on the number (N) of subelements in the subframe which have not been assigned a resource group of the first set; and
assigning each resource group of the second set to a subelement associated with a respective numeric value determined for that resource group.', 'dividing transmission resources needed for the first channel into a first set of resource groups;', 'assigning the resource groups of the first set to subelements in the subframe in a predetermined fashion, wherein each subelement comprises a group of four time-frequency resource elements;', 'assigning a numeric value to all subelements in the subframe which have not been assigned a resource group of the first set, wherein a number of subelements that have not been assigned a resource group of the first set is equal to N;', 'dividing transmission resources needed for the second channel into a second set of resource groups; and', 'assigning, in a predetermined fashion, the resource groups of the second set to subelements in the subframe by means of said numeric values, wherein assigning the resource groups of the second set comprises:
determining a respective numeric value for one or more resource groups of the second set based on the number (N) of subelements in the subframe which have not been assigned a resource group of the first set; and
assigning each resource group of the second set to a subelement associated with a respective numeric value determined for that resource group.', 'determining a respective numeric value for one or more resource groups of the second set based on the number (N) of subelements in the subframe which have not been assigned a resource group of the first set; and', 'assigning each resource group of the second set to a subelement associated with a respective numeric value determined for that resource group.', '9. The scheduling node of claim 8, in which the resource groups of the second set are assigned to subelements in the subframe in such a manner that they are maximally spaced apart from each other in frequency.', '10. The scheduling node of claim 8, in which the resource groups of the second set are assigned to subelements in the subframe such that the resource groups of the second set are spaced apart from each other in frequency in a predetermined manner.', '11. The scheduling node of claim 8, in which the first and the second channel are control channels.', '12. The scheduling node of claim 8, which applies the scheduling to a downlink subframe.', '13. The scheduling node of claim 8, being employed in an E-UTRAN system, Long Term Evolution.', '14. The scheduling node of claim 13, being employed in an eNodeB in an E-UTRAN system.', '15. The scheduling node of claim 11, in which the control channels comprise a Physical Control Format Indicator Channel (PCFICH) and a Physical Hybrid ARQ Indicator Channel (PHICH).']
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