Method and apparatus for resource management in wireless communication systems
The present disclosure relates to a pre-5 th -Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4 th -Generation (4G) communication system such as Long Term Evolution (LTE). A method is provided for operating a wireless communication system including a user equipment (UE), a first base station, and a second base station. The method includes receiving an indication of resources currently allocated for transmitting data from another base station to the UE; determining, based on the received indication, resource management parameters for transmitting data from the base station to the UE; and transmitting data to the UE based on the determined resource management parameters. The determination of the resource management parameters at the base station is offset in time from a corresponding determination of resource management parameters for transmitting the data from the another base station to the UE.
1. A method performed by a first base station in a wireless communication system, the method comprising:
receiving, from a user equipment (UE), an indication of resources allocated for transmission of data from a second base station to the UE;
determining, based on the indication received from the UE, first resource management parameters for a transmission of data from the first base station to the UE; and
transmitting data to the UE based on the first determined resource management parameters,
wherein the first resource management parameters at the first base station are determined based on a time offset corresponding to second resource management parameters for a transmission of data from the second base station to the UE.
2. The method of claim 1 , wherein each of the allocated resources span a plurality of predetermined transmission time intervals, and
wherein the first resource management parameters at the first base station and the second resource management parameters at the second base station are determined based on the time offset by at least one transmission time interval.
3. The method of claim 1 , wherein the resources are divided by frequency and time into a plurality of resource blocks, and
wherein determining the first resource management parameters comprises:
determining one or more resource blocks to allocate for the transmission of data from the first base station to the UE,
determining a coding scheme for the transmission of data from the first base station to the UE, and
determining a modulation scheme for the transmission of data from the first base station to the UE.
4. The method of claim 3 , wherein the data transmissions from the first base station to the UE are based on the first determined resource management parameters for at least two consecutive transmission time intervals.
5. The method of claim 4 , wherein the allocated resources each span a different set of consecutive transmission time intervals, and
wherein the different sets overlap by at least one transmission time interval.
6. The method of claim 1 , wherein the data transmissions from the first base station and the second base station to the UE based on the determined respective resource management parameters partially overlap in frequency and in time.
7. The method of claim 1 , wherein the indication of the resources allocated for the transmission of data from the second base station to the UE is based on resource allocation information received at the UE from the second base station.
8. The method of claim 1 , wherein the time offset is greater than a time between a beginning of the resources allocated for transmission of data from the second base station to the UE and the reception of the indication of the resources allocated for transmission of data from the second base station to the UE at the first base station, and a time between a beginning of the resources allocated for transmission of data from the first base station to the UE and the reception of the indication of the resources allocated for transmission of data from the first base station to the UE at the second base station.
9. A first base station in a wireless communication system, the first base station comprising:
a transceiver configured to receive, from a user equipment (UE), an indication of resources allocated for transmission of data from a second base station to the UE; and
at least one processor configured to determine, based on the received indication, first resource management parameters for a transmission of data from the first base station to the UE,
wherein the transceiver is further configured to transmit data to the UE based on the first determined resource management parameters, wherein the first resource management parameters at the first base station are determined based on a time offset corresponding to second resource management parameters for a transmission of data from the second base station to the UE.
10. The first base station of claim 9 , wherein each of the allocated resources span a plurality of predetermined transmission time intervals, and
wherein the first resource management parameters at the first base station and the second resource management parameters at the second base station are determined based on the time offset by at least one transmission time interval.
11. The first base station of claim 9 , wherein the resources are divided in frequency and time into a plurality of resource blocks, and wherein the at least one transceiver is further configured to:
determine one or more resource blocks to allocate for the transmission of data from the first base station to the UE,
determine a coding scheme for the transmission of data from the first base station to the UE, and
determine a modulation scheme for the transmission of data from the first base station to the UE.
12. The first base station of claim 11 , wherein the data transmissions from the first base station to the UE are based on the first determined resource management parameters for at least two consecutive transmission time intervals.
13. The first base station of claim 12 , wherein the allocated resources each span a different set of consecutive transmission time intervals, and
wherein the different sets overlap by at least one transmission time interval.
14. The first base station of claim 9 , wherein the data transmissions from the first base station and the second base station to the UE based on the determined respective resource management parameters partially overlap in frequency and in time.
15. The first base station of claim 9 , wherein the indication of the resources allocated for the transmission of data from the second base station to the UE is based on resource allocation information received at the UE from the second base station.
16. The first base station of claim 9 , wherein the time offset is greater than a time between a beginning of the resources allocated for transmission of data from the second base station to the UE and the reception of the indication of the resources allocated for transmission of data from the second base station to the UE at the first base station, and a time between a beginning of the resources allocated for transmission of data from the first base station to the UE and the reception of the indication of the resources allocated for transmission of data from the first base station to the UE at the second base station.