Enhanced intra-band non-collocated carrier aggregation

A network device, comprising:

• a memory, in which instructions are stored;
• and
• at least one processor, configured to execute the instructions stored in the memory to cause the network device to:
• receive, from a wireless device, a capability of supporting a new type of carrier aggregation;
• and
• schedule the new type of carrier aggregation for the wireless device based on the received capability, wherein the capability of supporting the new type of carrier aggregation includes:
• supporting a maximum RTD between aggregated component carriers that is no less than a predetermined RTD threshold, wherein the RTD is a relative receiving time difference between two signals relatively received on the aggregated component carriers;
• supporting a maximum power imbalance between aggregated component carriers that is no less than a predetermined power imbalance threshold, wherein the power imbalance indicates a difference of receiving power between two signals relatively received on the aggregated component carriers;
• and
• at least one component carrier supports a maximum of four MIMO layers.

A wireless device, comprising:

• a memory, in which instructions are stored;
• and
• at least one processor, configured to execute the instructions stored in the memory to cause the wireless device to:
• report, to a network device, a capability of supporting a new type of carrier aggregation;
• measure a first Reference Signal Receiving Power (RSRP) for a first component carrier and a second RSRP for a second component carrier, wherein the first component carrier is a serving component carrier of the wireless device, and the second component carrier is indicated by the network device as a component carrier to be aggregated with the first component carrier;
• and
• report, to the network device, a power imbalance between the first component carrier and the second component carrier determined from the first RSRP and the second RSRP for the network device to schedule the new type of carrier aggregation, wherein the capability of supporting the new type of carrier aggregation includes:
• supporting a maximum RTD between aggregated component carriers that is no less than a predetermined RTD threshold, wherein the RTD is a relative receiving time difference between two signals relatively received on the aggregated component carriers;
• supporting a maximum power imbalance between aggregated component carriers that is no less than a predetermined power imbalance threshold;
• and
• at least one component carrier supports a maximum of four MIMO layers.