Sequence generation for systems supporting mixed numerologies

An apparatus for wireless communication at a user equipment, UE, comprising:

• memory;
• and
• at least one processor coupled to the memory and configured to cause the UE to:
• receive, in a unicast transmission, a downlink assignment or an uplink grant comprising an indication of assigned resources for use by the UE in communicating with a base station;
• determine a numerology, based on the indication of the assigned resources, comprising at least one of a subcarrier spacing or a symbol duration associated with the assigned resources, wherein the numerology is determined from among a plurality of numerologies including a first numerology having at least a first subcarrier spacing or a first symbol duration and a second numerology having at least a second subcarrier spacing or a second symbol duration;
• determine one or more indices for the assigned resources based on the numerology, wherein the one or more indices comprise an OFDM symbol index for the assigned resources, a slot index for the assigned resources, or a combination thereof;
• generate a sequence based on the one or more indices;
• and
• communicate with the base station based on the sequence.

A method for wireless communication at a network entity, comprising:

• determining, at the network entity, a numerology associated with a resource, wherein the numerology comprises at least one of a subcarrier spacing or a symbol duration associated with the resource, wherein the numerology is determined from among a plurality of numerologies including a first numerology having at least a first subcarrier spacing or a first symbol duration and a second numerology having at least a second subcarrier spacing or a second symbol duration;
• assigning, at the network entity, the resource for use by a user equipment (UE);
• signaling, from the network entity to the UE via a unicast transmission, an indication of the numerology in a downlink assignment or an uplink grant that assigns the resource for use by the UE;
• and
• communicating with the UE over the assigned resource using a sequence based on one or more indices associated with the numerology, wherein the one or more indices comprise an OFDM symbol index for the resource, a slot index for the resource, or a combination thereof.

An apparatus for wireless communication at a network entity, comprising:

• memory;
• and
• at least one processor coupled to the memory and configured to cause the network entity to:
• determine a numerology comprising at least one of a subcarrier spacing or a symbol duration associated with a resource, wherein the numerology is determined from among a plurality of numerologies including a first numerology having at least a first subcarrier spacing or a first symbol duration and a second numerology having at least a second subcarrier spacing or a second symbol duration;
• assign the resource for use by a user equipment (UE);
• signal to the UE via a unicast transmission an indication of the numerology in a downlink assignment or an uplink grant that assigns the resources for use by the UE;
• and
• communicate with the UE over the assigned resource based on a sequence using a seed that is a function of one or more indices associated with the numerology, wherein the one or more indices comprise an OFDM symbol index for the resource, a slot index for the resource, or a combination thereof.