Methods for allocating data channel resources in a wireless communication system and apparatuses
Methods may be provided for allocating up/downlink data channel (that is, PDSCH and PUSCH) resource for a machine type communication (MTC) terminal in 3GPP LTE/LTE advanced system and for configuring a Downlink Control Information (DCI) for it. Further, a method may be provided for allocating up/downlink data channel resource for further enhanced MTC terminal which supports a up/downlink data channel (that is, PDSCH and PUSCH) bandwidth enhanced as compared with the MTC terminal (BL/CE UE) defined in LTE rel-13.
1. A method for allocating a data channel resource in a wireless communication system, the method comprising:
configuring at least one narrowband using physical resource blocks which configure a system bandwidth, wherein each of the at least one narrowband includes six consecutive physical resource blocks;
allocating one or more narrowbands, among the configured at least one narrowband, for transmitting/receiving a data channel; and
transmitting information indicating the allocation of one or more narrowbands through downlink control information,
wherein the downlink control information includes information indicating an index of a wideband configured with N non-overlapping narrowbands in the narrowbands which configure the system bandwidth, where N is an integer number greater than 0.
2. The method according to claim 1 , wherein the downlink control information includes information indicating an index of a starting narrowband of the allocated one or more narrowbands.
3. The method according to claim 1 , wherein when the number of narrowbands which configure the system bandwidth is equal to or greater than 4, the wideband is configured by four non-overlapping narrowbands.
4. The method according to claim 1 , wherein the wideband which configures the system bandwidth is configured in order of increasing narrowband number.
5. A method for monitoring allocation of a data channel resource in a wireless communication system, the method comprising:
receiving downlink control information from a base station;
identifying one or more narrowbands allocated for transmission/reception of a data channel through the downlink control information; and
transmitting/receiving the data channel through the one or more allocated narrowbands,
wherein the downlink control information includes information on the one or more narrowbands allocated for transmission/reception of the data channel among at least one narrowband configured using physical resource blocks of a system bandwidth, where each of the at least one narrowband includes six consecutive physical resource blocks, and
wherein the downlink control information includes information indicating an index of a wideband configured with N non-overlapping narrowbands in the narrowbands which configure the system bandwidth.
6. The method according to claim 5 , wherein the downlink control information includes information indicating an index of a starting narrowband of the one or more allocated narrowbands.
7. The method according to claim 5 , wherein when the number of narrowbands which configure the system bandwidth is equal to or greater than 4, the wideband is configured by four non-overlapping narrowbands.
8. The method according to claim 5 , wherein the wideband which configures the system bandwidth is configured in order of increasing narrowband number.
9. A base station for allocating a data channel resource in a wireless communication system, the base station comprising:
a control unit is configured to configure at least one narrowband using physical resource blocks which configure a system bandwidth, allocate one or more narrowbands among the configured at least one narrowband for transmitting and receiving a data channel, and generate downlink control information including information indicating the allocation of one or more narrowbands, wherein each of the at least one narrowband includes six consecutive physical resource blocks; and
a transmitting unit configured to transmit the downlink control information to a terminal,
wherein the downlink control information includes information indicating an index of a wideband configured with N non-overlapping narrowbands in the narrowbands which configure the system bandwidth, where N is an integer number greater than 0.
10. The base station according to claim 9 , wherein the downlink control information includes information indicating an index of a starting narrowband of the one or more allocated narrowbands.
11. The base station according to claim 9 , wherein when the number of narrowbands which configure the system bandwidth is equal to or greater than 4, the wideband is configured by four non-overlapping narrowbands.
12. The base station according to claim 9 , wherein the wideband which configures the system bandwidth is configured in order of increasing narrowband number.
13. A terminal for monitoring allocation of a data channel resource in a wireless communication system, the terminal comprising:
a receiving unit configured to receive downlink control information from a base station; and
a control unit configured to identify one or more narrowbands allocated for transmitting and receiving a data channel through the downlink control information and control transmission/reception of the data channel through the one or more allocated narrowbands,
wherein the downlink control information includes information on the one or more narrowbands allocated for transmission/reception of the data channel among at least one narrowband configured using physical resource blocks of a system bandwidth, where each of the at least one narrowband includes six consecutive physical resource blocks, and
wherein the downlink control information includes information indicating an index of a wideband configured with N non-overlapping narrowbands in the narrowbands which configure the system bandwidth, where N is an integer number greater than 0.
14. The terminal according to claim 13 , wherein the downlink control information includes information indicating an index of a starting narrowband of the one or more allocated narrowbands.
15. The terminal according to claim 13 , wherein when the number of narrowbands which configure the system bandwidth is equal to or greater than 4, the wideband is configured by four non-overlapping narrowbands.
16. The terminal according to claim 13 , wherein the wideband which configures the system bandwidth is configured in order of increasing narrowband number.