Abstract
A method in a user equipment for requesting that a base station schedule the user equipment for an uplink data transmission to the base station is provided. The user equipment comprises a buffer. Directly or indirectly responsive to receiving data into the buffer to be transmitted to the base station the user equipment generates a scheduling request trigger. The scheduling request trigger is configured to trigger the sending of a scheduling request to the base station if the trigger is pending at the next scheduling request opportunity and to remain pending until it is cancelled. The user equipment cancels the pending scheduling request trigger when the data is accounted for in a buffer status report which reports the size of the buffer to the base station or when the data is included directly in a scheduled uplink data transmission whichever occurs first.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
4G | 20/12/2010 | ISLD-201101-002 | ERICSSON INC | No | Family Member | ||||
5G | 19/05/2017 | ISLD-201705-002 | ERICSSON INC | No | Family Member |
Specification Information
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
Scheduling
Product
Use Cases
Services
Claim
1. A method in a user equipment for handling a scheduling request, the user equipment comprising a buffer, the method comprising:
receiving data to be transmitted to a base station, and storing the data in the buffer;
triggering a scheduling request which will remain pending until it is cancelled, in response to receiving the data;
configuring the user equipment to cancel the pending scheduling request based on a Medium Access Control (MAC) Packet Data Unit (PDU) being assembled in the user equipment which includes a buffer status report which contains buffer status up to and including the last event that triggered a buffer status report;
configuring the user equipment to cancel the pending scheduling request based on an uplink grant being received which can accommodate all pending data in the buffer that is available for transmission; and
cancelling the pending scheduling request if either of the following occurs:
the Medium Access Control (MAC) Packet Data Unit (PDU) is assembled in the user equipment which includes a buffer status report which contains buffer status up to and including the last event that triggered a buffer status report; or
the uplink grant has been received which can accommodate all pending data in the buffer that is available for transmission.
2. The method of claim 1, wherein triggering the scheduling request in response to receiving the data comprises generating a buffer status report trigger which in turn triggers the scheduling request.
3. The method of claim 2, wherein canceling the pending scheduling request comprises canceling the buffer status report trigger, which in turn triggers the canceling of the pending scheduling request.
4. The method of claim 1, further comprising:
sending the scheduling request to a base station during a next scheduling request opportunity if the pending scheduling request is still pending during the scheduling request opportunity.
5. A user equipment configured to handle a scheduling request, the user equipment comprising:
a buffer; and
a processing circuit configured to:
receive data to be transmitted to a base station, and store the data in the buffer;
trigger a scheduling request which will remain pending until it is cancelled, in response to receipt of the data;
configure the user equipment to cancel the pending scheduling request based on a Medium Access Control (MAC) Packet Data Unit (PDU) being assembled in the user equipment which includes a buffer status report which contains buffer status up to and including the last event that triggered a buffer status report;
configure the user equipment to cancel the pending scheduling request based on an uplink grant being received which can accommodate all pending data in the buffer that is available for transmission; and
cancel the pending scheduling request if either of the following occurs:
the Medium Access Control (MAC) Packet Data Unit (PDU) is assembled in the user equipment which includes a buffer status report which contains buffer status up to and including the last event that triggered a buffer status report; or
the uplink grant has been received which can accommodate all pending data in the buffer that is available for transmission.
6. The user equipment of claim 5, wherein to trigger the scheduling request in response to receiving the data, the processing circuit is configured to generate a buffer status report trigger which in turn triggers the scheduling request.
7. The user equipment of claim 6, wherein to cancel the pending scheduling request, the processing circuit is configured to cancel the buffer status report trigger, which in turn triggers cancelation of the pending scheduling request.
8. The user equipment of claim 5, wherein the processing circuit is further configured to send the scheduling request to a base station during a next scheduling request opportunity if the pending scheduling request is still pending during the scheduling request opportunity.
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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.