Method and apparatus or allocating resources to user equipments in a telecommunications system
AssigneeOptis Cellular Technology, LLC
InventorsErik Eriksson, Eva Englund, Kristina Jersenius
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Abstract
The present invention relates to a method and a radio base station (700) for allocating resources to a UE such that the UE can transmit at least channel feedback information to the radio base station (700). According to exemplary embodiments of the present invention, the radio base station (700) is configured to take the possibility of a scheduling request transmission from the UE into account when allocating the channel feedback information resources in order to avoid wasting of uplink resources.
Claims17
A method in a radio base station for allocating resources to a user equipment (UE), said UE having at least one buffer for buffering data to be sent to the radio base station and configured to receive signals from the radio base station for enabling the UE to transmit channel feedback information to the radio base station, said method comprising the steps of:
- predicting when the UE is scheduled to transmit a scheduling request for at least one resource;
- determining whether an allocation of a resource for the channel feedback information coincides with a resource for the scheduling request;
- and
- if it is determined that said allocation of the resource for the channel feedback information coincides with the resource for the scheduling request, down-prioritizing the allocation of the resource for the channel feedback information or requesting, in a message to the UE, the channel feedback information and a buffer status report about an amount of data available for transmission from the UE to said radio base station, wherein down-prioritizing comprises down-prioritizing the allocation of the resource for the channel feedback information when an estimated block error probability of a channel feedback information transmission exceeds a predefined threshold value.
A radio base station for allocating resources to a user equipment (UE), said UE having at least one buffer for buffering data to be sent to the radio base station and configured to receive signals from the radio base station for enabling the UE to transmit channel feedback information to the radio base station, the radio base station comprising:
- predicting means configured to predict when the UE is scheduled to transmit a scheduling request for at least one resource;
- and
- allocating means configured to determine whether an allocation of a resource for the channel feedback information coincides with a resource for the scheduling request;
- wherein,
- if said allocating means determines that said allocation of the resource for the channel feedback information coincides with the resource for the scheduling request, the allocating means is configured to down-prioritize the allocation of the resource for the channel feedback information or to request, in a message to the UE, the channel feedback information and a buffer status report about an amount of data available for transmission from the UE to said radio base station, wherein said allocation means is configured to down-prioritize the allocation of the resource for the channel feedback information when said allocating means determines that an estimated block error probability of a channel feedback information transmission including a data grant for a buffer status report exceeds a predefined threshold value.
Dependencies are inferred from the claim text.