Resource allocation method and apparatus
By using a method for coordination between base stations, one base station allocates a resource to user equipment in a better manner with reference to resource configuration information saved in the base station and resource configuration information of another base station. The method provided in the embodiments of the present invention includes: acquiring, by a first base station, resource configuration information of a first cell, where the first cell is a cell served by the first base station; receiving resource configuration information of a second cell sent by a second base station, where the second cell is a cell served by the second base station; and allocating a resource to user equipment according to the resource configuration information of the first cell and the resource configuration information of the second cell, so that the user equipment communicates with the first cell and the second cell.
1. A resource allocation method, comprising:
receiving, by an apparatus, first uplink power control common configuration information of a first cell and second uplink power control common configuration information of a second cell from a first base station, the first cell being a cell served by the first base station, the second cell being a cell served by a second base station;
acquiring, by the apparatus, power headroom report (PHR) information according to the first and the second uplink power control common configuration information; and
sending, by the apparatus, the PHR information to the first base station.
2. The resource allocation method according to claim 1 , wherein the PHR information comprises at least one of:
power headroom of the first cell; and
power headroom of the second cell.
3. The resource allocation method according to claim 2 , wherein the power headroom comprises at least one of:
type 1 power headroom; and
type 2 power headroom.
4. The resource allocation method according to claim 3 , wherein:
the type 1 power headroom is obtained by physical uplink shared channel (PUSCH) transmit power subtracted from maximum transmit power (PCMAX, c); or
the type 2 power headroom is obtained by both PUSCH transmit power and physical uplink control channel (PUCCH) transmit power subtracted from PCMAX, c.
5. The resource allocation method according to claim 4 , further comprising:
configuring, by the apparatus, the PCMAX, c in a primary cell (PCell) or a serving cell in an activated state.
6. The resource allocation method according to claim 3 , wherein:
in a coordinated multi-point (CoMP) transmission technology, both of the first cell and the second cell are transmission points of the apparatus; or
in a carrier aggregation (CA) technology, both of the first cell and the second cell are serving cells of the apparatus; or
in a dual connectivity (DC) technology, the first cell is a primary cell (PCell) and the second cell is a primary secondary cell (PSCell).
7. An apparatus, comprising:
a processor;
memory coupled to the processor, the memory comprising instructions that, when executed by the processor, cause the apparatus to:
receive first uplink power control common configuration information of a first cell and second uplink power control common configuration information of a second cell from a first base station, the first cell being a cell served by the first base station, the second cell being a cell served by a second base station,
acquire power headroom report (PHR) information according to the first and the second uplink power control common configuration information, and
send the PHR information to the first base station.
8. The apparatus according to claim 7 , wherein the PHR information comprises at least one of:
power headroom of the first cell; and
power headroom of the second cell.
9. The apparatus according to claim 8 , wherein the power headroom comprises at least one of:
type 1 power headroom; and
type 2 power headroom.
10. The apparatus according to claim 9 , wherein
the type 1 power headroom is obtained by physical uplink shared channel (PUSCH) transmit power subtracted from maximum transmit power (PCMAX, c); or
the type 2 power headroom is obtained by both PUSCH transmit power and physical uplink control channel (PUCCH) transmit power subtracted from the PCMAX, c.
11. The apparatus according to claim 10 , wherein the memory further comprises instructions that, when executed by the processor, cause the apparatus to configure the PCMAX, c in a primary cell (PCell) or a serving cell in an activated state.
12. The apparatus according to claim 9 , wherein:
in a coordinated multi-point (CoMP) transmission technology, both of the first cell and the second cell are transmission points of the apparatus; or
in a carrier aggregation (CA) technology, both of the first cell and the second cell are serving cells of the apparatus; or
in a dual connectivity (DC) technology, the first cell is a primary cell (PCell) and the second cell is a primary secondary cell (PSCell).