Data transmission using bandwidth parts
AssigneeNokia Technologies Oy
InventorsDaniela Laselva, Frank Frederiksen, Klaus Ingemann Pedersen
Life of this patent
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Abstract
A method includes: detecting a need for a retransmission of a data transmission on one or more bandwidth parts (BWP) between a user apparatus and a radio access network; and in response to detecting the need for the retransmission, resetting a timer, wherein an expiration of the timer causes automatic switching from using the one or more BWPs for the data transmission to using a default BWP for the data transmission.
Claims20
An apparatus comprising:
- processing circuitry;
- and
- memory circuitry including computer program code, where the memory circuitry and the computer program code configured to, with the processing circuitry, cause the apparatus to:
- detect a need for a retransmission of a data transmission on one or more bandwidth parts (BWP) between a user apparatus and a radio access network in response to triggering a hybrid automatic repeat request negative acknowledgement (HARQ-NACK) indications to the radio access network;
- and
- in response to detecting the need for the retransmission, reset a BWP-HARQ inactivity timer to a time value that is larger than the following:
- a maximum number of consecutive new radio units until a downlink retransmission is received multiplied by a minimum amount of new radio units before a downlink assignment for HARQ retransmission is expected by a media access control entity, wherein an expiration of the timer is configured to cause automatic switching from using the one or more bandwidth parts for the data transmission to using a default bandwidth part for the data transmission.
A method comprising:
- detecting a need for a retransmission of a data transmission on one or more bandwidth parts BWP between a user apparatus and a radio access network in response to triggering a hybrid automatic repeat request negative acknowledgement (HARQ-NACK) indications to the radio access network;
- and
- in response to detecting the need for the retransmission, resetting a BWP-HARQ inactivity timer to a time value that is larger than the following:
- a maximum number of consecutive new radio units until a downlink retransmission is received multiplied by a minimum amount of new radio units before a downlink assignment for HARQ retransmission is expected by a media access control entity, wherein an expiration of the timer causes automatic switching from using the one or more bandwidth parts for the data transmission to using a default bandwidth part for the data transmission.
A non-transitory computer-readable medium comprising computer program code, which, when loaded into one or more processors and executed by the one or more processors, causes an apparatus to perform a method comprising:
- detecting a need for a retransmission of a data transmission on one or more bandwidth parts BWP between a user apparatus and a radio access network in response to triggering a hybrid automatic repeat request negative acknowledgement (HARQ-NACK) indications to the radio access network;
- and
- in response to detecting the need for the retransmission, resetting a BWP-HARQ inactivity timer to a time value that is larger than the following:
- a maximum number of consecutive new radio units until a downlink retransmission is received multiplied by a minimum amount of new radio units before a downlink assignment for HARQ retransmission is expected by a media access control entity, wherein an expiration of the timer causes automatic switching from using the one or more bandwidth parts for the data transmission to using a default bandwidth part for the data transmission.
Dependencies are inferred from the claim text.