Methods and apparatus for sidelink communications and resource allocation

A user equipment (UE) comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to:
• obtain, by the UE, a sidelink (SL) communication resource configuration to be used by the UE for communicating SL control information and SL data between the UE and another UE, wherein the SL communication resource configuration comprises an indication of a pool of communication resources, wherein each communication resource comprises a time slot and a frequency sub-channel;
• select a plurality of communication resources within a first time window among the pool of communication resources.
• transmit, by the UE, the SL control information to the other UE using the selected plurality of communication resources;
• and
• transmit, by the UE, the SL data to the other UE using the selected plurality of communication resources.

A method performed by a base station, the method comprising:

• transmitting, by the base station, a sidelink (SL) communication resource configuration to be used by the first UE for communicating SL control information and SL data between the first UE and a second UE,
• wherein the SL communication resource configuration comprises an indication of a pool of communication resources,
• wherein each communication resource comprises a time slot and a frequency sub-channel,
• wherein a plurality of communication resources within a first time window are selected by the first UE among the pool of communication resources,
• wherein the SL control information and the SL data are transmitted by the first UE to the second UE using the selected plurality of communication resources.

A base station comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to transmit to a first UE a sidelink (SL) communication resource configuration to be used by the first UE for communicating SL control information and SL data between the first UE and a second UE,
• wherein the SL communication resource configuration comprises an indication of a pool of communication resources,
• wherein each communication resource comprises a time slot and a frequency sub-channel,
• wherein a plurality of communication resources within a first time window are selected by the first UE among the pool of communication resources,
• wherein the SL control information and the SL data are transmitted by the first UE to the second UE using the selected plurality of communication resources.

A method performed by a user equipment (UE), the method comprising:

• receiving, by the UE, a message indicating a sidelink (SL) communication resource configuration to be used by the UE for communicating SL control information and SL data between the UE and another UE;
• transmitting, by the UE, the SL control information to the other UE using a communication resource indicated by the SL communication resource configuration;
• and
• transmitting, by the UE, the SL data to the other UE using the communication resource indicated by the SL communication resource configuration,
• wherein the SL communication resource configuration comprises an indication of a periodicity of the communication resource, and
• wherein the SL control information and the SL data are transmitted by the UE without the UE receiving, in a downlink control information (DCI), a grant of the communication resource.

A user equipment (UE) comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to:
• receive, by the UE, a message indicating a sidelink (SL) communication resource configuration to be used by the UE for communicating SL control information and SL data between the UE and another UE;
• transmit, by the UE, the SL control information to the other UE using a communication resource indicated by the SL communication resource configuration;
• and
• transmit, by the UE, the SL data to the other UE using the communication resource indicated by the SL communication resource configuration,
• wherein the SL communication resource configuration comprises an indication of a periodicity of the communication resource, and
• wherein the SL control information and the SL data are transmitted by the UE without the UE receiving, in a downlink control information (DCI), a grant of the communication resource.