PHYSICAL (PHY) LAYER SOLUTIONS TO SUPPORT USE OF MIXED NUMEROLOGIES IN THE SAME CHANNEL
A wireless transmit/receive unit (WTRU) may, in a first codeword, map a first set of bits to a higher order modulation scheme and a second set of bits to a lower order scheme. The WTRU may then transmit the first set of bits in the first codeword at a first allocated power and the second set of bits in the first codeword at a second allocated power. In an example, the second allocated power may be great than the first allocated power. Further, the WTRU may determine the second allocated power based on power boosting the first allocated power. In another example, the WTRU may receive an assignment message from a base station including instructions regarding partition determination and resource assignment. The WTRU may then determine at least two partitions of bandwidth based on the assignment message. Further, each partition may have differing symbol periods, differing subcarrier spacing or both.
1 . A method for use in a wireless transmit/receive unit (WTRU), the method comprising:
mapping a first set of bits in a first codeword to a higher order modulation scheme and a second set of bits in the first codeword to a lower order modulation scheme;
transmitting the first set of bits in the first codeword at a first allocated power; and
transmitting the second set of bits in the first codeword at a second allocated power.
2 . The method of claim 1 , wherein the second allocated power is greater than the first allocated power.
3 . The method of claim 1 , further comprising:
determining the second allocated power based on power boosting the first allocated power.
4 . The method of claim 1 , further comprising:
receiving an assignment message from a base station including instructions regarding partition determination and resource assignment; and
determining at least two partitions of bandwidth for wireless communication based on the assignment message, wherein each of the at least two partitions has differing symbol periods, differing subcarrier spacing or both.
5 . The method of the claim 4 , further comprising:
assigning resource blocks (RBs) of the at least two partitions based on the assignment message, wherein RBs of a partition closer in at least one of time resources and frequency resources to an adjacent partition are assigned the lower modulation scheme, and wherein the first codeword is transmitted using assigned RBs.
6 . The method of claim 4 , wherein a first partition has a first numerology and a second partition has a second numerology.
7 . The method of claim 1 , further comprising:
determining that data of the first codeword is to be re-transmitted on a second codeword, wherein the second codeword contains the same number of bits as the first codeword; and
transmitting the second codeword.
8 . The method of claim 7 , wherein the mapping of the bits of the first codeword and a mapping of the bits of the second codeword is based on at least one of pre-defined processing.
9 . The method of claim 7 , wherein the mapping of the bits of the first codeword and a mapping of the bits of the second codeword is based on dynamically signaled processing.
10 . The method of claim 7 , wherein the mapping of the bits of the first codeword and a mapping of the bits of the second codeword is based on processing signaled in downlink control information (DCI).
11 . A wireless transmit/receive unit (WTRU) for use with mixed numerologies, the WTRU comprising:
a processor; and
a transceiver operatively coupled to the processor; wherein:
the processor is configured to map a first set of bits in a first codeword to a higher order modulation scheme and a second set of bits in the first codeword to a lower order modulation scheme;
the transceiver and the processor are configured to transmit the first set of bits in the first codeword at a first allocated power; and
the transceiver and the processor are configured to transmit the second set of bits in the second codeword at a second allocated power.
12 . The WTRU of claim 11 , wherein the second allocated power is greater than the first allocated power.
13 . The WTRU of claim 11 , wherein the processor is further configured to determine the second allocated power based on power boosting the first allocated power.
14 . The WTRU of claim 11 , wherein the transceiver is further configured to receive an assignment message from a base station including instructions regarding partition determination and resource assignment; and
wherein the processor is further configured to determine at least two partitions of bandwidth for wireless communication based on the assignment message, wherein each of the at least two partitions has differing symbol periods, differing subcarrier spacing or both.
15 . The WTRU of the claim 14 , wherein the processor is further configured to assign resource blocks (RBs) of the at least two partitions based on the assignment message, wherein RBs of a partition closer in at least one of time resources and frequency resources to an adjacent partition are assigned the lower modulation scheme, and wherein the first codeword is transmitted using assigned RBs.
16 . The WTRU of claim 14 , wherein a first partition has a first numerology and a second partition has a second numerology.
17 . The WTRU of claim 11 , wherein the processor is further configured to determine that data of the first codeword is to be re-transmitted on a second codeword, wherein the second codeword contains the same number of bits as the first codeword; and
wherein the transceiver and the processor are further configured to transmit the second codeword.
18 . The WTRU of claim 17 , wherein the mapping of the bits of the first codeword and a mapping of the bits of the second codeword is based on at least one of pre-defined processing.
19 . The WTRU of claim 17 , wherein the mapping of the bits of the first codeword and a mapping of the bits of the second codeword is based on dynamically signaled processing.
20 . The WTRU of claim 17 , wherein the mapping of the bits of the first codeword and a mapping of the bits of the second codeword is based on processing signaled in downlink control information (DCI).