Techniques for dynamically adjusting retransmission opportunities within a connected isochronous stream

A method for wireless communication at a first wireless device, comprising:

• transmitting or receiving a control message that indicates a mapping between a respective number of transmission opportunities that are allocated for retransmissions via a connected isochronous stream and a respective modulation and coding scheme of the connected isochronous stream;
• detecting a change to a modulation and coding scheme of the connected isochronous stream during a first isochronous interval of the connected isochronous stream;
• adjusting, for a second isochronous interval of the connected isochronous stream, a ratio between first transmission opportunities that are allocated for the retransmissions and second transmission opportunities that are allocated for new transmissions in response to detecting the change to the modulation and coding scheme and the mapping, wherein the first isochronous interval and the second isochronous interval span a same time duration, and wherein adjusting the ratio comprises:
• increasing a number of transmission opportunities that are allocated for the retransmissions as the modulation and coding scheme decreases from a relatively higher modulation and coding scheme to a relatively lower modulation and coding scheme;
• and
• decreasing the number of transmission opportunities as the modulation and coding scheme increases from the relatively lower modulation and coding scheme to the relatively higher modulation and coding scheme;
• and
• transmitting or receiving one or more audio data packets with a second wireless device during the second isochronous interval in accordance with the adjusted ratio between the first transmission opportunities that are allocated for the retransmissions and the second transmission opportunities that are allocated for the new transmissions.

An apparatus for wireless communication at a first wireless device, comprising:

• means for transmitting or receiving a control message that indicates a mapping between a respective number of transmission opportunities that are allocated for retransmissions via a connected isochronous stream and a respective modulation and coding scheme of the connected isochronous stream;
• means for detecting a change to a modulation and coding scheme of the connected isochronous stream during a first isochronous interval of the connected isochronous stream;
• means for adjusting, for a second isochronous interval of the connected isochronous stream, a ratio between first transmission opportunities that are allocated for the retransmissions and second transmission opportunities that are allocated for new transmissions in response to detecting the change to the modulation and coding scheme and the mapping, wherein the first isochronous interval and the second isochronous interval span a same time duration, and wherein the means for adjusting the ratio comprise:
• means for increasing a number of transmission opportunities that are allocated for the retransmissions as the modulation and coding scheme decreases from a relatively higher modulation and coding scheme to a relatively lower modulation and coding scheme;
• and
• means for decreasing the number of transmission opportunities as the modulation and coding scheme increases from the relatively lower modulation and coding scheme to the relatively higher modulation and coding scheme;
• and
• means for transmitting or receiving one or more audio data packets with a second wireless device during the second isochronous interval in accordance with the adjusted ratio between the first transmission opportunities that are allocated for the retransmissions and the second transmission opportunities that are allocated for the new transmissions.

A non-transitory computer-readable medium storing code for wireless communication at a first wireless device, the code comprising instructions executable by one or more processors to:

• transmit or receive a control message that indicates a mapping between a respective number of transmission opportunities that are allocated for retransmissions via a connected isochronous stream and a respective modulation and coding scheme of the connected isochronous stream;
• detect a change to a modulation and coding scheme of the connected isochronous stream during a first isochronous interval of the connected isochronous stream;
• adjust, for a second isochronous interval of the connected isochronous stream, a ratio between first transmission opportunities that are allocated for the retransmissions and second transmission opportunities that are allocated for new transmissions in response to detecting the change to the modulation and coding scheme and the mapping, wherein the first isochronous interval and the second isochronous interval span a same time duration, and wherein the code to adjust the ratio is executable by the one or more processors to cause the first wireless device to:
• increase a number of transmission opportunities that are allocated for the retransmissions as the modulation and coding scheme decreases from a relatively higher modulation and coding scheme to a relatively lower modulation and coding scheme;
• and
• decrease the number of transmission opportunities as the modulation and coding scheme increases from the relatively lower modulation and coding scheme to the relatively higher modulation and coding scheme;
• and
• transmit or receive one or more audio data packets with a second wireless device during the second isochronous interval in accordance with the adjusted ratio between the first transmission opportunities that are allocated for the retransmissions and the second transmission opportunities that are allocated for the new transmissions.