Abstract
An apparatus and method for assigning subchannels of a transmitter in a communication system. The method includes dividing an entire frequency band into m subcarrier groups; mapping each of the m subcarrier groups to a subcarrier group index wherein a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence; determining that a first data is needed to transmit in a first timing point; and assigning a first subchannel in the first timing point using a first subcarrier group index sequence. The first subcarrier group index sequence is different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point.
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Technologies
Resource configuration Multiple access
Product
Base Station (eNB/gNB)User Equipment (UE/Terminal)
Use Cases
Wireless communication
Services
Transmitting/receiving of data channel
Claim
1. A method of assigning subchannels by a transmitter in a communication system, the method comprising:
dividing, by the transmitter, an entire frequency band into m subcarrier groups;
mapping, by the transmitter, each of the m subcarrier groups to a subcarrier group index, wherein a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence,
determining, by the transmitter, that a first data is needed to transmit in a first timing point; and
assigning, by the transmitter, a first subchannel in the first timing point using a first subcarrier group index sequence,
wherein the first subcarrier group index sequence is different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point, and
wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,
where Îxa0(k) represents an interleaving formula, β represents a subchannel index of the first subchannel, k represents locations of the subcarriers included in the first subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.', 'dividing, by the transmitter, an entire frequency band into m subcarrier groups;', 'mapping, by the transmitter, each of the m subcarrier groups to a subcarrier group index, wherein a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence,', 'determining, by the transmitter, that a first data is needed to transmit in a first timing point; and', 'assigning, by the transmitter, a first subchannel in the first timing point using a first subcarrier group index sequence,', 'wherein the first subcarrier group index sequence is different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point, and', 'wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,', 'Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,', 'where Îxa0(k) represents an interleaving formula, β represents a subchannel index of the first subchannel, k represents locations of the subcarriers included in the first subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.
2. The method of claim 1, wherein the first data is identical to a second data transmitted in the second timing point and the first data is retransmitted after transmitting the second data.
3. The method of claim 1, wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921,', 'Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921,', 'where b represents an integer, and each of a and b has a greatest common measure of 1 with respect to (Qâx88x921).
4. The method of claim 1, wherein the first subcarrier group index sequence is equal to a sequence generated by cyclic-shifting the second subcarrier group index sequence.
5. A method of receiving data by a receiver in a communication system, the method comprising:
dividing, by the receiver, an entire frequency band into m subcarrier groups;
mapping, by the receiver, each of the m subcarrier groups to a subcarrier group index, wherein a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence; and
receiving, by the receiver, data using a first subchannel,
wherein the first subchannel is assigned in a first timing point using a first subcarrier group index sequence by a transmitter, when the transmitter determines that a first data is to be transmit in the first timing point, the first subcarrier group index sequence being different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point by the transmitter, and
wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,
where Îxa0(k) represents an interleaving formula, β represents a subchannel index of the first subchannel, k represents locations of the subcarriers included in the first subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.', 'dividing, by the receiver, an entire frequency band into m subcarrier groups;', 'mapping, by the receiver, each of the m subcarrier groups to a subcarrier group index, wherein a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence; and', 'receiving, by the receiver, data using a first subchannel,', 'wherein the first subchannel is assigned in a first timing point using a first subcarrier group index sequence by a transmitter, when the transmitter determines that a first data is to be transmit in the first timing point, the first subcarrier group index sequence being different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point by the transmitter, and', 'wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,', 'Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,', 'where Îxa0(k) represents an interleaving formula, β represents a subchannel index of the first subchannel, k represents locations of the subcarriers included in the first subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.
6. The method of claim 5, wherein the first data is identical to a second data transmitted in the second timing point and the first data is retransmitted after transmitting the second data.
7. The method of claim 5, wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921,
where b represents an integer, and each of a and b has a greatest common measure of 1 with respect to (Qâx88x921).', 'Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921,', 'where b represents an integer, and each of a and b has a greatest common measure of 1 with respect to (Qâx88x921).
8. The method of claim 5, wherein the first subcarrier group index sequence is equal to a sequence generated by cyclic-shifting the second subcarrier group index sequence.
9. An apparatus for assigning subchannels in a communication system, the apparatus comprising:
a subchannel assigner for assigning a first subchannel in a first timing point using a first subcarrier group index sequence when a transmitter determines that a first data is to be transmitted in the first timing point,
wherein an entire frequency band is divided into m subcarrier groups, each of the m subcarrier groups is mapped to a subcarrier group index, a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence,
wherein the first subcarrier group index sequence is different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point, and
wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,
where Îxa0(k) represents an interleaving formula, β represents a subchannel index of the first subchannel, k represents locations of the subcarriers included in the first subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.', 'a subchannel assigner for assigning a first subchannel in a first timing point using a first subcarrier group index sequence when a transmitter determines that a first data is to be transmitted in the first timing point,', 'wherein an entire frequency band is divided into m subcarrier groups, each of the m subcarrier groups is mapped to a subcarrier group index, a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence,', 'wherein the first subcarrier group index sequence is different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point, and', 'wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,', 'Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,', 'where Îxa0(k) represents an interleaving formula, β represents a subchannel index of the first subchannel, k represents locations of the subcarriers included in the first subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.', '10. The apparatus of claim 9, wherein the first data is identical to a second data transmitted in the second timing point and the first data is retransmitted after transmitting the second data.', '11. The apparatus of claim 9, wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921,
where b represents an integer, and each of a and b has a greatest common measure of 1 with respect to (Qâx88x921).', 'Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921,', 'where b represents an integer, and each of a and b has a greatest common measure of 1 with respect to (Qâx88x921).', '12. The apparatus of claim 9, wherein the first subcarrier group index sequence is equal to a sequence generated by cyclic-shifting the second subcarrier group index sequence.', '13. An apparatus for receiving data in a communication system, the apparatus comprising:
a receiver for receiving a data using a first subchannel,
wherein when an entire frequency band is divided into m subcarrier groups, each of the m subcarrier groups is mapped to a subcarrier group index, a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence,
wherein the first subchannel is assigned in a first timing point using a first subcarrier group index sequence by a transmitter when the transmitter determines that a first data is to be transmit in the first timing point,
wherein the first subcarrier group index sequence is different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point by the transmitter, and
wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,
where Îxa0(k) represents an interleaving formula, β represents a subchannel index of the first subchannel, k represents locations of the subcarriers included in the first subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.', 'a receiver for receiving a data using a first subchannel,', 'wherein when an entire frequency band is divided into m subcarrier groups, each of the m subcarrier groups is mapped to a subcarrier group index, a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence,', 'wherein the first subchannel is assigned in a first timing point using a first subcarrier group index sequence by a transmitter when the transmitter determines that a first data is to be transmit in the first timing point,', 'wherein the first subcarrier group index sequence is different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point by the transmitter, and', 'wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,', 'Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,', 'where Îxa0(k) represents an interleaving formula, β represents a subchannel index of the first subchannel, k represents locations of the subcarriers included in the first subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.', '14. The apparatus of claim 13, the first data is identical to a second data transmitted in the second timing point and the first data is retransmitted after transmitting the second data.', '15. The apparatus of claim 13, wherein the first subcarrier group index sequence is generated by interleaving corresponding to:
Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921,
where b represents an integer, and each of a and b has a greatest common measure of 1 with respect to (Qâx88x921).', 'Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921,', 'where b represents an integer, and each of a and b has a greatest common measure of 1 with respect to (Qâx88x921).', '16. The apparatus of claim 13, wherein the first subcarrier group index sequence is equal to a sequence generated by cyclic-shifting the second subcarrier group index sequence.', '17. A method of assigning subchannels by a transmitter in a wireless communication system, the method comprising:
generating, by the transmitter, subcarrier groups by classifying subcarriers;
interleaving, by the transmitter, at least one of the subcarrier group corresponding to a predetermined interleaving formula;
constituting, by the transmitter, a subchannel using the interleaved subcarrier group; and
assigning, by the transmitter, the constituted subchannel for transmission,
wherein the predetermined interleaving formula is expressed as:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,
where β represents a subchannel index, k represents locations of the subcarriers included in β subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.', 'generating, by the transmitter, subcarrier groups by classifying subcarriers;', 'interleaving, by the transmitter, at least one of the subcarrier group corresponding to a predetermined interleaving formula;', 'constituting, by the transmitter, a subchannel using the interleaved subcarrier group; and', 'assigning, by the transmitter, the constituted subchannel for transmission,', 'wherein the predetermined interleaving formula is expressed as:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,', 'Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922,', 'where β represents a subchannel index, k represents locations of the subcarriers included in β subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.', '18. The method of claim 17, wherein the predetermined interleaving formula is expressed as:
Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921,
where b represents an integer, and each of a and b represents an integer having a greatest common measure of 1 with respect to (Qâx88x921).', 'Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921,', 'where b represents an integer, and each of a and b represents an integer having a greatest common measure of 1 with respect to (Qâx88x921).', '19. An apparatus for assigning subchannels in a wireless communication system, the apparatus comprising:
a subchannel assigning means for generating subcarrier groups by classifying subcarriers, constituting a subchannel using at least one interleaved subcarrier group, and assigning the constituted subchannel for transmission; and
an interleaving means for interleaving at least one subcarrier group among the generated subcarrier groups corresponding to a predetermined interleaving formula,
wherein the predetermined interleaving formula is expressed as:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922
where β represents a subchannel index, k represents locations of the subcarriers included in β subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.', 'a subchannel assigning means for generating subcarrier groups by classifying subcarriers, constituting a subchannel using at least one interleaved subcarrier group, and assigning the constituted subchannel for transmission; and', 'an interleaving means for interleaving at least one subcarrier group among the generated subcarrier groups corresponding to a predetermined interleaving formula,', 'wherein the predetermined interleaving formula is expressed as:
Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922', 'Îxa0(k)=(a*β+k)mod(Qâx88x921)for β=0, . . . ,Qâx88x922', 'where β represents a subchannel index, k represents locations of the subcarriers included in β subchannel, a represents an integer, and (Qâx88x921) represents a number of subcarriers in each subchannel.
20. The apparatus of claim 19, wherein the predetermined interleaving formula is expressed as:
Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921
where b represents an integer, and each of a and b represents an integer having a greatest common measure of 1 with respect to (Qâx88x921).', 'Îxa0(k)=(b*β+k)mod(Qâx88x921)for β=Qâx88x921', 'where b represents an integer, and each of a and b represents an integer having a greatest common measure of 1 with respect to (Qâx88x921).']
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