Triggering relay transmission using a physical downlink shared channel

1 . A wireless communication relay device, comprising:

at least one memory;

at least one transceiver; and

at least one processor coupled to the at least one memory and the at least one transceiver, the at least one processor configured to:

receive, via the at least one transceiver, a first Physical Downlink Shared Channel (PDSCH) communication;

determine, from the first PDSCH communication, a first combined transport block including a first header and a plurality of components, the plurality of components including a first control component associated with a first user equipment (UE) and the first header including routing information associated with the first control component;

generate a first transport block that includes the first control component;

determine, based on the routing information associated with the first control component, at least one node that is part of a route to the first UE; and

transmit, via the at least one transceiver, the first transport block to the at least one node.

2 . The wireless communication relay device of claim 1 , wherein the first transport block comprises a Physical Downlink Control Channel (PDCCH) communication that is transmitted to the first UE.

3 . The wireless communication relay device of claim 1 , wherein the at least one processor is further configured to:

generate a second combined transport block that includes the first control component; and

transmit, via the at least one transceiver, a second PDSCH communication that includes the second combined transport block to at least one node that is part of the route to the first UE, wherein the second combined transport block comprises control information for transmitting the first control component to the first UE.

4 . The wireless communication relay device of claim 1 , wherein to transmit the first transport block the at least one processor is configured to broadcast, via the at least one transceiver, the first transport block to a plurality of nodes.

5 . The wireless communication relay device of claim 1 , wherein the first transport block comprises a second PDSCH communication that is transmitted to the at least one node.

6 . The wireless communication relay device of claim 1 , wherein at least one of the plurality of components comprises a Downlink Control Information (DCI) component.

7 . The wireless communication relay device of claim 1 , wherein the plurality of components includes a first data component that is associated with the first UE and is encoded separately from the first control component.

8 . The wireless communication relay device of claim 7 , wherein the at least one processor is further configured to:

generate a second transport block that includes the first data component;

generate a second combined transport block that includes the first transport block and the second transport block; and

transmit, via the at least one transceiver, the second combined transport block.

9 . The wireless communication relay device of claim 7 , wherein the at least one processor is further configured to:

determine whether the first data component can be decoded; and

in response to a determination that the first data component cannot be decoded, transmit, via the at least one transceiver, a feedback message to a base station requesting retransmission of the first data component.

10 . The wireless communication relay device of claim 1 , wherein the first header further includes at least one of a destination identifier, a routing information, a range identification, or a transmission resource allocation.

11 . The wireless communication relay device of claim 10 , wherein the first combined transport block further includes a second header, wherein the second header is encoded with the first control component.

12 . The wireless communication relay device of claim 10 , wherein the first header corresponds to a first component from the plurality of components, the first component including a plurality of sub-components corresponding to a plurality of UEs.

13 . A method of wireless communication performed by a relay device, the method comprising:

receiving a first Physical Downlink Shared Channel (PDSCH) communication;

determining, from the first PDSCH communication, a first combined transport block including a first header and a plurality of components, the plurality of components including a first control component associated with a first user equipment (UE) and the first header including routing information associated with the first control component;

generating a first transport block that includes the first control component;

determine, based on the routing information associated with the first control component, at least one node that is part of a route to the first UE; and

transmitting the first transport block to the at least one node.

14 . The method of claim 13 ,

wherein the first transport block comprises control information for transmitting the first control component to the first UE.

15 . The method of claim 13 , wherein the first header further includes at least one of a destination identifier, a range identification, or a transmission resource allocation.

16 . The method of claim 15 , wherein the first combined transport block further includes a second header, wherein the second header is encoded with the first control component.

17 . The method of claim 15 , wherein the first header corresponds to a first component from the plurality of components, the first component including a plurality of sub-components corresponding to a plurality of UEs.

18 . A wireless communication base station, comprising:

at least one memory;

at least one transceiver; and

at least one processor coupled to the at least one memory and the at least one transceiver, the at least one processor configured to:

generate a combined transport block including a plurality of components and routing information indicating at least one route associated with a first user equipment (UE);

determine a first header, a first control component, and a first data component associated with the first UE, the first header including routing information associated with the first control component and indicating at least one node that is part of a route to the first UE, wherein the control component and the data component are included in the plurality of components in the combined transport block, and wherein the first header is included in a plurality of headers in the combined transport block; and

transmit, via the at least one transceiver, the combined transport block in a Physical Downlink Shared Channel (PDSCH) communication for receipt by the first UE.

19 . The base station of claim 18 , wherein the at least one processor is further configured to:

determine the at least one node that is part of the route to the first UE, wherein the combined transport block is transmitted to the at least one node.

20 . The base station of claim 19 , wherein the at least one processor is further configured to:

receive, from the at least one node via the at least one transceiver, a feedback message with an indication of a failure to decode the first data component associated with the first UE; and

transmit, to the at least one node via the at least one transceiver, a copy of the at least one data component.

21 . The base station of claim 18 , wherein the plurality of components includes at least one downlink control information (DCI) component.

22 . The base station of claim 18 , wherein the first header further includes at least one of a destination identifier, a range identification, or a transmission resource allocation.

23 . The base station of claim 22 , wherein the combined transport block further includes a second header, wherein the second header is encoded with at least one component from the plurality of components.

24 . A method of wireless communication performed by a base station, the method comprising:

generating a combined transport block including a plurality of components and routing information indicating at least one route associated with a first user equipment (UE);

determining a first header, a first control component, and a first data component associated with the first UE, the first header including routing information associated with the first control component and indicating at least one node that is part of a route to the first UE, wherein the control component and the data component are included in the plurality of components in the combined transport block, and wherein the first header is included in a plurality of headers in the combined transport block; and

transmitting the combined transport block in a Physical Downlink Shared Channel (PDSCH) communication for receipt by the first UE.

25 . The method of claim 24 , further comprising:

determining the at least one node that is part of the route to the first UE, wherein the combined transport block is transmitted to the at least one node.

26 . The method of claim 25 , further comprising:

receiving, from the at least one node, a feedback message with an indication of a failure to decode the first data component associated with the first UE; and

transmitting, to the at least one node, a copy of the at least one data component.

27 . The method of claim 24 , wherein the first header further includes at least one of a destination identifier a range identification, or a transmission resource allocation.

28 . The method of claim 13 , wherein the first transport block comprises a Physical Downlink Control Channel (PDCCH) communication that is transmitted to the first UE.

29 . The method of claim 13 , further comprising:

generating a second combined transport block that includes the first control component; and

transmitting a second PDSCH communication that includes the second combined transport block to at least one node that is part of a route to the first UE, wherein the second combined transport block comprises control information for transmitting the first control component to the first UE.