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US 11,777,668 B2Granted
Method and apparatus for device-to-device communication based on a threshold
AssigneeLenovo (Beijing) Limited
InventorsZhennian Sun, Xiaodong Yu, Haipeng Lei, Lianhai Wu, Jing Han
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Abstract
The subject application is related to a method and apparatus for Device-to-Device communication. A method for Device-to-Device communication includes transmitting a signal toward a group of user equipments (UEs); detecting a HARQ feedback signal accumulated by signal (s) from one or more UEs within the group of UEs; and transmitting a signal toward the group of UEs, wherein the UE and the group of UEs are configured to perform groupcast transmission.
Claims9
A method performed by a user equipment (UE) comprising:
- transmitting a first signal toward a group of UEs;
- detecting a first hybrid automatic repeat request (HARQ) feedback signal accumulated by signal(s) from one or more UEs within the group of UEs;
- and
- transmitting a second signal toward the group of UEs, wherein:
- the UE and the group of UEs are configured to perform groupcast transmission;
- the second signal is a retransmission of the first signal in response to a total number of transmissions of the first signal being less than a threshold value and the first HARQ feedback signal comprises a negative acknowledgement (NACK);
- and
- the second signal is a new signal in response to the total number of transmissions of the first signal exceeding the threshold value regardless of the contents of the first HARQ feedback signal.
5 more elements
Dependencies are inferred from the claim text.