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US 12,119,945 B2Granted
Hybrid automatic repeat request feedback for wireless communication
AssigneeApple Inc.
InventorHonglei Miao
Life of this patent
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Abstract
The present disclosure includes methods and devices for NACK feedback based HARQ retransmission scheme in a wireless communication network. The method includes receiving mobile radio communication terminal devices transmitting NACK feedback signaled time-frequency resources and transmitting mobile radio communication terminal devices performing retransmission of the previously sent messages based on receiving NACK feedback.
Claims18
A mobile radio communication terminal device, comprising:
- at least one receiver;
- at least one transmitter;
- and
- one or more processors operatively coupled to a non-transitory memory that stores computer readable software, wherein the computer readable software, when executed by the one or more processors, causes the mobile radio communication terminal device to:
- transmit, via the at least one transmitter, to at least a second mobile radio communication terminal device:
- a sidelink control information (SCI) that includes first information;
- and
- a physical sidelink shared channel (PSSCH) transport block;
- receive, via the at least one receiver, either a negative-acknowledgment (NACK) feedback message from the second mobile radio communication terminal device or no response, wherein:
- when the NACK feedback message is received, it indicates the PSSCH transport block was not successfully decoded, and
- when no response is received, an acknowledgement (ACK) for the PSSCH transport block is indicated;
- wherein a resource block and cyclic shift of a sequence for the NACK feedback message are determinable based on the first information included in the SCI;
- and
- determine whether or not to perform a retransmission of the PSSCH transport block based on receiving the NACK feedback message or no response.
11 more elements
A mobile radio communication terminal device comprising:
- at least one receiver;
- at least one transmitter;
- and
- one or more processors operatively coupled to a non-transitory memory that stores computer readable software, wherein the computer readable software, when executed by the one or more processors, causes the mobile radio communication terminal device to:
- receive, via the at least one receiver, a transmitted physical signal shared channel (PSSCH) transport block from a second mobile radio communication terminal device;
- implement a decoding process on the received PSSCH transport block;
- in response to the mobile radio communication terminal device not successfully decoding the PSSCH transport block, transmit, via the at least one transmitter, a negative-acknowledgment (NACK) feedback message to the second mobile radio communication terminal device;
- and
- in response to the mobile radio communication terminal device successfully decoding the PSCCH transport block:
- not transmit an acknowledgement (ACK) feedback message to the second mobile radio communication terminal device;
- and
- ignore any subsequent received retransmission of the PSSCH transport block.
9 more elements
A method comprising:
- provide for transmission to a remote mobile radio communication terminal device:
- a sidelink control information (SCI) that includes first information;
- and
- a physical sidelink shared channel (PSSCH) transport block;
- receive either a negative-acknowledgment (NACK) feedback message from the remote mobile radio communication terminal device or no response, wherein:
- when the NACK feedback message is received, it indicates the PSSCH transport block was not successfully decoded, and
- when no response is received, and acknowledgement (ACK) for the PSSCH transport block is indicated;
- wherein a resource block and cyclic shift of a sequence for the NACK feedback message are determinable based on the first information included in the SCI;
- and
- determine whether or not to perform a retransmission of the PSSCH transport block based on receiving the NACK feedback message or no response.
7 more elements
Dependencies are inferred from the claim text.