ENABLING MULTI-CLUSTER TRANSMISSIONS
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may determine to use multi-cluster communications in a vehicle based communication network. The UE may identify a configuration parameter associated with the multi-cluster communications. The UE may select a cluster resource from a set of available cluster resources based on the configuration parameter. The cluster resource may include one or more clusters used for multi-cluster transmissions in the vehicle based communication network. The UE may transmit an indication of the selected cluster resource to a wireless node of the vehicle based communication network, for example, to another UE. The UE may transmit the multi-cluster transmission on the selected cluster resource.
1 . (canceled)
2 . An apparatus for wireless communication at a user equipment (UE), comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
receive an indication of a configuration for a resource pool that comprises a plurality of cluster resources available for multi-cluster transmissions in a vehicle-based communication network, wherein each cluster resource in the resource pool comprises a same number of resource blocks; and
transmit a multi-cluster transmission via two or more cluster resources of the plurality of cluster resources in the resource pool based at least in part on receiving the indication of the configuration for the resource pool, wherein the multi-cluster transmission comprises a control message and a data message.
3 . The apparatus of claim 2 , wherein, to receive the indication of the configuration, the instructions are executable by the processor to cause the apparatus to:
receive the indication of the configuration for the resource pool via a bitmap that indicates the plurality of cluster resources that are available for multi-cluster transmissions in the vehicle-based communication network.
4 . The apparatus of claim 2 , wherein, to receive the indication of the configuration, the instructions are executable by the processor to cause the apparatus to:
receive radio resource control (RRC) signaling that indicates the configuration for the resource pool.
5 . The apparatus of claim 2 , wherein, to transmit the multi-cluster transmission, the instructions are executable by the processor to cause the apparatus to:
transmit the multi-cluster transmission based at least in part on a communication failure between the UE and a cellular communication network.
6 . The apparatus of claim 2 , wherein, to transmit the multi-cluster transmission, the instructions are executable by the processor to cause the apparatus to:
transmit the control message via a first cluster resource of the two or more cluster resources; and
transmit the data message via a second cluster resource of the two or more cluster resources.
7 . The apparatus of claim 6 , wherein:
the first cluster resource and the second cluster resource are adjacent in frequency.
8 . The apparatus of claim 6 , wherein:
the first cluster resource and the second cluster resource are separated by one or more resource blocks.
9 . The apparatus of claim 2 , wherein the instructions are further executable by the processor to cause the apparatus to:
monitor a received energy level associated with each cluster resource in the resource pool; and
select the two or more cluster resources for the multi-cluster transmission based at least in part on the received energy level associated with the two or more cluster resources.
10 . The apparatus of claim 2 , wherein the instructions are further executable by the processor to cause the apparatus to:
receive a control message that indicates a selection of one or more cluster resources for multi-cluster transmissions at a second UE in the vehicle-based communication network; and
select the two or more cluster resources for the multi-cluster transmission based at least in part on the control message.
11 . The apparatus of claim 2 , wherein a transmit power used for the multi-cluster transmission is based at least in part on a power spectral density (PSD) threshold of the UE.
12 . The apparatus of claim 2 , wherein the UE comprises a vehicle UE in a vehicle-to-vehicle (V2V) network or a vehicle-to-everything (V2X) network.
13 . The apparatus of claim 2 , wherein:
a first set of one or more cluster resources in the resource pool are available for control messages; and
a second set of one or more cluster resources in the resource pool are available for data messages.
14 . The apparatus of claim 2 , wherein, to transmit the multi-cluster transmission, the instructions are executable by the processor to cause the apparatus to:
transmit the control message and the data message using different transmit powers.
15 . The apparatus of claim 2 , wherein, to receive the indication of the configuration, the instructions are executable by the processor to cause the apparatus to:
receive, from a network entity associated with a cellular communication network, dedicated signaling or a system information block (SIB) that indicates the configuration for the resource pool.
16 . The apparatus of claim 2 , wherein the instructions are further executable by the processor to cause the apparatus to:
select a quantity of cluster resources to use for the multi-cluster transmission based at least in part on a speed of the UE.
17 . A method for wireless communication at a user equipment (UE), comprising:
receiving an indication of a configuration for a resource pool that comprises a plurality of cluster resources available for multi-cluster transmissions in a vehicle-based communication network, wherein each cluster resource in the resource pool comprises a same number of resource blocks; and
transmitting a multi-cluster transmission via two or more cluster resources of the plurality of cluster resources in the resource pool based at least in part on receiving the indication of the configuration for the resource pool, wherein the multi-cluster transmission comprises a control message and a data message.
18 . The method of claim 17 , wherein receiving the indication of the configuration comprises:
receiving the indication of the configuration for the resource pool via a bitmap that indicates the plurality of cluster resources that are available for multi-cluster transmissions in the vehicle-based communication network.
19 . The method of claim 17 , wherein receiving the indication of the configuration comprises:
receiving radio resource control (RRC) signaling that indicates the configuration for the resource pool.
20 . The method of claim 17 , wherein transmitting the multi-cluster transmission comprises:
transmitting the multi-cluster transmission based at least in part on a communication failure between the UE and a cellular communication network.
21 . The method of claim 17 , wherein transmitting the multi-cluster transmission comprises:
transmitting the control message via a first cluster resource of the two or more cluster resources; and
transmitting the data message via a second cluster resource of the two or more cluster resources.
22 . The method of claim 21 , wherein the first cluster resource and the second cluster resource are adjacent in frequency.
23 . The method of claim 21 , wherein the first cluster resource and the second cluster resource are separated by one or more resource blocks.
24 . The method of claim 17 , further comprising:
monitoring a received energy level associated with each cluster resource in the resource pool; and
selecting the two or more cluster resources for the multi-cluster transmission based at least in part on the received energy level associated with the two or more cluster resources.
25 . The method of claim 17 , further comprising:
receiving a control message that indicates a selection of one or more cluster resources for multi-cluster transmissions at a second UE in the vehicle-based communication network; and
selecting the two or more cluster resources for the multi-cluster transmission based at least in part on the control message.
26 . The method of claim 17 , wherein a transmit power used for the multi-cluster transmission is based at least in part on a power spectral density (PSD) threshold of the UE.
27 . The method of claim 17 , wherein the UE comprises a vehicle UE in a vehicle-to-vehicle (V2V) network or a vehicle-to-everything (V2X) network.
28 . The method of claim 17 , wherein:
a first set of one or more cluster resources in the resource pool are available for control messages; and
a second set of one or more cluster resources in the resource pool are available for data messages.
29 . The method of claim 17 , wherein transmitting the multi-cluster transmission comprises:
transmitting the control message and the data message using different transmit powers.
30 . An apparatus for wireless communication at a user equipment (UE), comprising:
means for receiving an indication of a configuration for a resource pool that comprises a plurality of cluster resources available for multi-cluster transmissions in a vehicle-based communication network, wherein each cluster resource in the resource pool comprises a same number of resource blocks; and
means for transmitting a multi-cluster transmission via two or more cluster resources of the plurality of cluster resources in the resource pool based at least in part on receiving the indication of the configuration for the resource pool, wherein the multi-cluster transmission comprises a control message and a data message.
31 . A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by a processor to:
receive an indication of a configuration for a resource pool that comprises a plurality of cluster resources available for multi-cluster transmissions in a vehicle-based communication network, wherein each cluster resource in the resource pool comprises a same number of resource blocks; and
transmit a multi-cluster transmission via two or more cluster resources of the plurality of cluster resources in the resource pool based at least in part on receiving the indication of the configuration for the resource pool, wherein the multi-cluster transmission comprises a control message and a data message.