Retuning for flexible resource allocation

A method for wireless communication by a user equipment (UE), comprising:

• identifying, at the UE, a first resource allocation for a first communication in a first transmission time interval (TTI) and a second resource allocation for a second communication in a second, subsequent TTI, wherein the second communication comprises an uplink communication, wherein the first resource allocation is associated with a first narrowband comprising a first set of resource blocks (RBs) and the second resource allocation is associated with a second narrowband comprising a second set of RBs, and wherein at least one RB of the first resource allocation is located outside the first set of RBs or at least one RB of the second resource allocation is located outside the second set of RBs;
• determining a center frequency of the second communication based at least in part on a coverage enhancement mode for the UE, a tuning time capability of the UE, a tuning configuration received from a base station, a reference signal configuration for the second communication, or a combination thereof;
• and
• retuning from a first tuning band to a second tuning band between the first communication and the second communication based at least in part on determining that the first tuning band associated with the first resource allocation for the first TTI is different from the second tuning band associated with the second resource allocation for the second TTI.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• identify, at the apparatus, a first resource allocation for a first communication in a first transmission time interval (TTI) and a second resource allocation for a second communication in a second, subsequent TTI, wherein the first resource allocation is associated with a first narrowband comprising a first set of resource blocks (RBs) and the second resource allocation is associated with a second narrowband comprising a second set of RBs, and wherein at least one RB of the first resource allocation is located outside the first set of RBs or at least one RB of the second resource allocation is located outside the second set of RBs;
• determine a second tuning band based at least in part on the second resource allocation and a set of resource block groups (RBGs) for a system bandwidth, wherein a starting RB of the second tuning band is based at least in part on an alignment of a starting RB of the second resource allocation with a boundary of an RBG of the set of RBGs;
• and
• retune from a first tuning band to the second tuning band between the first communication and the second communication based at least in part on determining that the first tuning band associated with the first resource allocation for the first TTI is different from the second tuning band associated with the second resource allocation for the second TTI.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• identify, at the UE, a first resource allocation for a first communication in a first transmission time interval (TTI) and a second resource allocation for a second communication in a second, subsequent TTI, wherein the second communication comprises an uplink communication, wherein the first resource allocation is associated with a first narrowband comprising a first set of resource blocks (RBs) and the second resource allocation is associated with a second narrowband comprising a second set of RBs, and wherein at least one RB of the first resource allocation is located outside the first set of RBs or at least one RB of the second resource allocation is located outside the second set of RBs;
• determine a center frequency of the second communication based at least in part on a coverage enhancement mode for the apparatus, a tuning time capability of the apparatus, a tuning configuration received from a base station, a reference signal configuration for the second communication, or a combination thereof;
• and
• retune from a first tuning band to a second tuning band between the first communication and the second communication based at least in part on determining that the first tuning band associated with the first resource allocation for the first TTI is different from the second tuning band associated with the second resource allocation for the second TTI.

An apparatus for wireless communication, comprising:

• means for identifying, at the apparatus, a first resource allocation for a first communication in a first transmission time interval (TTI) and a second resource allocation for a second communication in a second, subsequent TTI, wherein the first resource allocation is associated with a first narrowband comprising a first set of resource blocks (RBs) and the second resource allocation is associated with a second narrowband comprising a second set of RBs, and wherein at least one RB of the first resource allocation is located outside the first set of RBs or at least one RB of the second resource allocation is located outside the second set of RBs;
• means for determining a second tuning band based at least in part on the second resource allocation and a set of resource block groups (RBGs) for a system bandwidth, wherein a starting RB of the second tuning band is based at least in part on an alignment of a starting RB of the second resource allocation with a boundary of an RBG of the set of RBGs;
• and
• means for retuning from a first tuning band to the second tuning band between the first communication and the second communication based at least in part on determining that the first tuning band associated with the first resource allocation for the first TTI is different from the second tuning band associated with the second resource allocation for the second TTI.

A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to:

• identify, at a user equipment (UE), a first resource allocation for a first communication in a first transmission time interval (TTI) and a second resource allocation for a second communication in a second, subsequent TTI, wherein the first resource allocation is associated with a first narrowband comprising a first set of resource blocks (RBs) and the second resource allocation is associated with a second narrowband comprising a second set of RBs, and wherein at least one RB of the first resource allocation is located outside the first set of RBs or at least one RB of the second resource allocation is located outside the second set of RBs;
• determine a second tuning band based at least in part on the second resource allocation and a set of resource block groups (RBGs) for a system bandwidth, wherein a starting RB of the second tuning band is based at least in part on an alignment of a starting RB of the second resource allocation with a boundary of an RBG of the set of RBGs;
• and
• retune from a first tuning band to a second tuning band between the first communication and the second communication based at least in part on determining that the first tuning band associated with the first resource allocation for the first TTI is different from the second tuning band associated with the second resource allocation for the second TTI.

An apparatus for wireless communication, comprising:

• means for identifying, at the apparatus, a first resource allocation for a first communication in a first transmission time interval (TTI) and a second resource allocation for a second communication in a second, subsequent TTI, wherein the second communication comprises an uplink communication, wherein the first resource allocation is associated with a first narrowband comprising a first set of resource blocks (RBs) and the second resource allocation is associated with a second narrowband comprising a second set of RBs, and wherein at least one RB of the first resource allocation is located outside the first set of RBs or at least one RB of the second resource allocation is located outside the second set of RBs;
• means for determining a center frequency of the second communication based at least in part on a coverage enhancement mode for the apparatus, a tuning time capability of the apparatus, a tuning configuration received from a base station, a reference signal configuration for the second communication, or a combination thereof;
• and
• means for retuning from a first tuning band to a second tuning band between the first communication and the second communication based at least in part on determining that the first tuning band associated with the first resource allocation for the first TTI is different from the second tuning band associated with the second resource allocation for the second TTI.

A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to:

• identify, at a user equipment (UE), a first resource allocation for a first communication in a first transmission time interval (TTI) and a second resource allocation for a second communication in a second, subsequent TTI, wherein the second communication comprises an uplink communication, wherein the first resource allocation is associated with a first narrowband comprising a first set of resource blocks (RBs) and the second resource allocation is associated with a second narrowband comprising a second set of RBs, and wherein at least one RB of the first resource allocation is located outside the first set of RBs or at least one RB of the second resource allocation is located outside the second set of RBs;
• determine a center frequency of the second communication based at least in part on a coverage enhancement mode for the UE, a tuning time capability of the UE, a tuning configuration received from a base station, a reference signal configuration for the second communication, or a combination thereof;
• and
• retune from a first tuning band to a second tuning band between the first communication and the second communication based at least in part on determining that the first tuning band associated with the first resource allocation for the first TTI is different from the second tuning band associated with the second resource allocation for the second TTI.