Power obtaining method and apparatus and node device
A power obtaining method includes: obtaining a configuration power, where the configuration power includes at least one of a first configuration power or a second configuration power, the first configuration power is a power configured for a DU of an IAB node, the second configuration power includes a power configured for an MT in the IAB node and a power configured for at least one cell group of the MT, or the second configuration power includes a power configured for at least one cell group of the MT; and determining a transmission power of the DU and a transmission power of the at least one cell group of the MT, where at least one of the transmission power of the DU or the transmission power of the at least one cell group of the MT is determined according to the configuration power and a transmission priority.
1. A power obtaining method, performed by a node device and comprising:
obtaining a configuration power, wherein the configuration power comprises at least one of a first configuration power or a second configuration power, the first configuration power is a power configured for a distributed unit (DU) of an integrated access backhaul (IAB) node, the second configuration power comprises a power configured for a mobile terminal (MT) in the IAB node and a power configured for at least one cell group of the MT, or the second configuration power comprises a power configured for at least one cell group of the MT; and
determining a transmission power of the DU and a transmission power of the at least one cell group of the MT; wherein
at least one of the transmission power of the DU or the transmission power of the at least one cell group of the MT is determined according to the configuration power and a transmission priority, wherein
the transmission priority comprises at least one of a transmission priority of the DU, a transmission priority of the MT, or a transmission priority of the at least one cell group of the MT.
2. The power obtaining method according to claim 1 , wherein the determining the transmission power of the DU and the transmission power of the at least one cell group of the MT comprises:
determining the transmission power of the DU and a transmission power of the MT; wherein
at least one of the transmission power of the DU or the transmission power of the MT is determined according to the configuration power and the transmission priority; and
determining the transmission power of the at least one cell group of the MT according to the transmission power of the MT or a preset power fixed value.
3. The power obtaining method according to claim 2 , wherein the first configuration power is a transmission power or a maximum transmission power Q DU configured for the DU, and the second configuration power is a transmission power or a maximum transmission power Q MT configured for the MT; and
the determining the transmission power of the DU comprises:
determining the transmission power of the DU according to a difference between a total power P total of the IAB node and the transmission power of the MT and the Q DU in a case that the transmission priority of the MT is higher than the transmission priority of the DU; or
determining the transmission power of the DU in a case that the transmission priority of the DU is higher than the transmission priority of the MT, wherein the transmission power of the DU is less than or equal to the Q DU .
4. The power obtaining method according to claim 2 , wherein the first configuration power is a transmission power or a maximum transmission power Q DU configured for the DU, and the second configuration power is a transmission power or a maximum transmission power Q MT configured for the MT; and
the determining the transmission power of the MT comprises:
determining the transmission power of the MT in a case that the transmission priority of the MT is higher than the transmission priority of the DU; wherein
the transmission power of the MT is less than or equal to the Q MT ; or
determining the transmission power of the MT according to a difference between a total power P total of the IAB node and the transmission power of the DU and the Q MT in a case that the transmission priority of the DU is higher than the transmission priority of the MT.
5. The power obtaining method according to claim 3 , wherein Q DU +Q MT >P total .
6. The power obtaining method according to claim 2 , wherein the first configuration power is a minimum guaranteed power P DU configured for the DU, and the second configuration power is a minimum guaranteed power P MT configured for the MT; and
the determining the transmission power of the DU comprises:
determining the transmission power of the DU according to a first difference between a total power P total of the IAB node and the transmission power of the MT in a case that the transmission priority of the MT is higher than the transmission priority of the DU; or
determining the transmission power of the DU according to a second difference between a total power P total of the IAB node and the P MT in a case that the transmission priority of the DU is higher than the transmission priority of the MT.
7. The power obtaining method according to claim 2 , wherein the first configuration power is a minimum guaranteed power P DU configured for the DU, and the second configuration power is a minimum guaranteed power P MT configured for the MT; and
the determining the transmission power of the MT comprises:
determining the transmission power of the MT according to a third difference between a total power P total of the IAB node and the P DU in a case that the transmission priority of the MT is higher than the transmission priority of the DU; or
determining the transmission power of the MT according to a fourth difference between a total power P total of the IAB node and the transmission power of the DU in a case that the transmission priority of the DU is higher than the transmission priority of the MT.
8. The power obtaining method according to claim 7 , wherein the determining the transmission power of the MT comprises:
determining an actual maximum transmission power of the MT; and
determining the transmission power of the MT at least according to the actual maximum transmission power of the MT.
9. The power obtaining method according to claim 8 , wherein the determining the actual maximum transmission power of the MT comprises:
in a case that there is a P cmax in the MT, selecting a smaller value of the third difference and the P cmax as the actual maximum transmission power of the MT; or
in a case that there is the P cmax in the MT, selecting a smaller value of the fourth difference and the P cmax as the actual maximum transmission power of the MT, wherein the P cmax is a maximum transmission power of the MT that is specified in a protocol or pre-configured.
10. The power obtaining method according to claim 2 , wherein the first configuration power comprises Q DU and/or P DU , and the second configuration power comprises Q MT and/or P MT , wherein the Q DU is a transmission power or a maximum transmission power configured for the DU, and the P DU is a minimum guaranteed power configured for the DU; the Q MT is a transmission power or a maximum transmission power configured for the MT, and the P MT is a minimum guaranteed power configured for the MT; and
the determining the transmission power of the DU comprises:
determining the transmission power of the DU according to a difference between a total power P total of the IAB node and the transmission power of the MT and the Q DU in a case that the transmission priority of the MT is higher than the transmission priority of the DU; or
determining the transmission power of the DU according to a difference between a total power P total of the IAB node and the P MT and the Q DU in a case that the transmission priority of the DU is higher than the transmission priority of the MT.
11. The power obtaining method according to claim 2 , wherein the first configuration power comprises Q DU and/or P DU , and the second configuration power comprises Q MT and/or P MT , wherein the Q DU is a transmission power or a maximum transmission power configured for the DU, and the P DU is a minimum guaranteed power configured for the DU; the Q MT is a transmission power or a maximum transmission power configured for the MT, and the P MT is a minimum guaranteed power configured for the MT; and
the determining the transmission power of the MT comprises:
determining the transmission power of the MT according to a difference between a total power P total of the IAB node and the P DU and the Q MT in a case that the transmission priority of the MT is higher than the transmission priority of the DU; or
determining the transmission power of the MT according to a difference between a total power P total of the IAB node and the transmission power of the DU and the Q MT in a case that the transmission priority of the DU is higher than the transmission priority of the MT.
12. The power obtaining method according to claim 2 , wherein the second configuration power comprises a maximum transmission power Q MCG configured for an MT master cell group and a maximum transmission power Q SCG configured for an MT secondary cell group; and the transmission power of the MT comprises a maximum transmission power configured for the MT, a maximum transmission power of the MT specified in a protocol, or an actual maximum transmission power of the MT; and
the determining the transmission power of the at least one cell group of the MT according to the transmission power of the MT or the preset power fixed value comprises:
according to the Q MCG and the Q SCG , obtaining, according to a preset power sharing rule, the maximum transmission power of the MT master cell group and the maximum transmission power of the MT secondary cell group; wherein
the preset power sharing rule comprises a first power sharing rule, a second power sharing rule, and a third power sharing rule;
the first power sharing rule is that dynamic power sharing is performed in a case that a sum of the Q MCG and the Q SCG is greater than a target power;
the second power sharing rule is that semi-persistent power sharing is performed in a case that a sum of the Q MCG and the Q SCG is less than or equal to the target power; and
the third power sharing rule is that dynamic power sharing is performed, wherein
the target power is the transmission power of the MT or the preset power fixed value.
13. The power obtaining method according to claim 12 , wherein before the obtaining the maximum transmission power of the MT master cell group and the maximum transmission power of the MT secondary cell group, the method further comprises:
adjusting at least one of the Q MCG or the Q SCG according to a difference between the fixed preset power fixed value and the transmission power of the MT in a case that the preset power fixed value is different from the transmission power of the MT.
14. The power obtaining method according to claim 1 , wherein the first configuration power is Q DU , the Q DU is a transmission power or a maximum transmission power configured for the DU, the second configuration power comprises Q 1 and Q 2 , the Q 1 is a transmission power or a maximum transmission power configured for an MT master cell group, and the Q 2 is a transmission power or a maximum transmission power configured for an MT secondary cell group; and
the determining the transmission power of the DU and the transmission power of the at least one cell group of the MT comprises:
in a case that a transmission priority of a first unit y in the IAB node is higher than a transmission priority of a second unit x in the IAB node, determining a transmission power or an actual maximum transmission power of the second unit according to min (Q x , P total −sum(pwr y )), wherein
the first unit is at least one of the DU, the MT secondary cell group, or the MT master cell group in the IAB node, the second unit comprises the DU, the MT secondary cell group, or the MT master cell group, and the first unit is different from the second unit; and
the Q x represents a maximum transmission power or a transmission power configured for the second unit, the Q x is the Q DU , the Q 1 , or the Q 2 , the pwr y represents a transmission power of the first unit, and the total is P total power of the IAB node.
15. The power obtaining method according to claim 14 , wherein Q DU +Q 1 +Q 2 >P total .
16. The power obtaining method according to claim 1 , wherein the first configuration power comprises Q DU , the Q DU is a transmission power or a maximum transmission power configured for the DU, the second configuration power comprises Q 1 and Q 2 , the Q 1 is a transmission power or a maximum transmission power configured for an MT master cell group, and the Q 2 is a transmission power or a maximum transmission power configured for an MT secondary cell group; and
the determining the transmission power of the DU and the transmission power of the at least one cell group of the MT comprises:
in a case that a transmission priority of a first unit y in the IAB node is higher than a transmission priority of a second unit x in the IAB node, and Q 1 +Q 2 >P cmax , determining a transmission power or an actual maximum transmission power of the second unit according to min (P cmax −sum(pwr k ), Q x , and P total −sum(pwr y )); wherein
the first unit is at least one of the DU, the MT secondary cell group, or the MT master cell group in the IAB node, the second unit is a cell group in the MT, and the first unit is different from the second unit; the pwr k represents a transmission power of a k unit in the MT, a transmission priority of the k unit is higher than the transmission priority of the second unit, and the P cmax is a maximum transmission power of the MT that is specified in a protocol; and the Q x represents a maximum transmission power or a transmission power configured for the second unit, the Q x is the Q DU , the Q 1 , or the Q 2 , and the pwr y represents a transmission power of the first unit; and/or
the first configuration power comprises P DU , and the second configuration power comprises P 1 and P 2 , wherein the P DU is a minimum guaranteed power configured for the DU, the P 1 is a minimum guaranteed power configured for an MT master cell group, and the P 2 is a minimum guaranteed power configured for an MT secondary cell group; and
the determining the transmission power of the DU and the transmission power of the at least one cell group of the MT comprises:
in a case that a transmission priority of a first unit y in the IAB node is higher than a transmission priority of a second unit x in the IAB node, and the transmission priority of the second unit x is higher than a transmission priority of a third unit z in the IAB node, determining a transmission power or an actual maximum transmission power of the second unit according to P total −sum(pwr y )−sum(P z ); wherein
the first unit is the DU, the MT secondary cell group, or the MT master cell group in the IAB node, the second unit is the DU, the MT secondary cell group, or the MT master cell group in the IAB node, the third unit is the DU, the MT secondary cell group, or the MT master cell group in the IAB node, and the first unit, the second unit, and the third unit are different; and
the pwr y represents a transmission power of the first unit, the P z represents a minimum guaranteed power configured for the third unit, and the P z is equal to the P DU , the P 1 , or the P 2 ; and/or
the first configuration power comprises Q DU and P DU , and the second configuration power comprises Q 1 , Q 2 , P 1 , and P 2 , wherein the Q DU is a transmission power or a maximum transmission power configured for the DU, and the P DU is a minimum guaranteed power configured for the DU; the Q 1 is a transmission power or a maximum transmission power configured for an MT master cell group, the Q 2 is a transmission power or a maximum transmission power configured for an MT secondary cell group, the P 1 is a minimum guaranteed power configured for the MT master cell group, and the P 2 is a minimum guaranteed power configured for the MT secondary cell group; and
the determining the transmission power of the DU and the transmission power of the at least one cell group of the MT comprises:
in a case that a transmission priority of a first unit y in the IAB node is higher than a transmission priority of a second unit x in the IAB node, and the transmission priority of the second unit x is higher than a transmission priority of a third unit z in the IAB node, determining a transmission power or an actual maximum transmission power of the second unit according to min {Q x , P total −sum(pwr y )−sum(P z )}; wherein
the first unit is the DU, the MT secondary cell group, or the MT master cell group in the IAB node, the second unit is the DU, the MT secondary cell group, or the MT master cell group in the IAB node, the third unit is the DU, the MT secondary cell group, or the MT master cell group in the IAB node, and the first unit, the second unit, and the third unit are different; and
the pwr y represents a transmission power of the first unit, the P z represents a minimum guaranteed power configured for the third unit, the P z is equal to the P DU , the P 1 , or the P 2 , the Q x represents a maximum transmission power or a transmission power configured for the second unit, and the Q x is the Q DU , the Q 1 , or the Q 2 ; and/or
the first configuration power comprises Q DU and P DU , and the second configuration power comprises Q 1 , Q 2 , P 1 , and P 2 , wherein the Q DU is a transmission power or a maximum transmission power configured for the DU, and the P DU is a minimum guaranteed power configured for the DU; the Q 1 is a transmission power or a maximum transmission power configured for an MT master cell group, the Q 2 is a transmission power or a maximum transmission power configured for an MT secondary cell group, the P 1 is a minimum guaranteed power configured for the MT master cell group, and the P 2 is a minimum guaranteed power configured for the MT secondary cell group; and
the determining a transmission power of the DU and the transmission power of the at least one cell group of the MT comprises:
in a case that a transmission priority of a first unit y in the IAB node is higher than a transmission priority of a second unit x in the IAB node, the transmission priority of the second unit x is higher than a transmission priority of a third unit z in the IAB node, and Q 1 +Q 2 >P cmax , determining a transmission power or an actual maximum transmission power of the second unit according to min (P cmax −sum(pwr k )−sum(P s ), Q x , and P total −sum(pwr y )−sum(P z )); wherein
the first unit is the DU, the MT secondary cell group, or the MT master cell group in the IAB node, the second unit is a cell group in the MT, the third unit is the DU, the MT secondary cell group, or the MT master cell group in the IAB node, and the first unit, the second unit, and the third unit are different;
the pwr y represents a transmission power of the first unit, the P z represents a minimum guaranteed power configured for the third unit, the P z is equal to the P DU , the P 1 , or the P 2 , the Q x represents a maximum transmission power or a transmission power configured for the second unit, and the Q x is the Q DU , the Q 1 , or the Q 2 ; the pwr k represents a transmission power of a k unit in the MT, a transmission priority of the k unit is higher than the transmission priority of the second unit, and the P cmax is a maximum transmission power of the MT that is specified in a protocol; and the P s represents a minimum guaranteed power configured for an s unit in the MT, and a transmission priority of the s unit is lower than the transmission priority of the second unit.
17. The power obtaining method according to claim 1 , wherein after the determining the transmission power of the DU and the transmission power of the at least one cell group of the MT, the method further comprises:
reporting at least one power headroom report (PHR); wherein
a power cap calculated in the PHR is assumed to be at least one of following:
at least one configured maximum transmission power;
at least one maximum power specified in a protocol;
at least one actual maximum transmission power; or
at least one configured minimum guaranteed power.
18. The power obtaining method according to claim 1 , wherein the transmission priority is determined in at least one of following manners:
protocol specification;
network configuration; or
a transmission priority of a physical layer.
19. A node device, comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, causes the node device to perform:
obtaining a configuration power, wherein the configuration power comprises at least one of a first configuration power or a second configuration power, the first configuration power is a power configured for a distributed unit (DU) of an integrated access backhaul (IAB) node, the second configuration power comprises a power configured for a mobile terminal (MT) in the IAB node and a power configured for at least one cell group of the MT, or the second configuration power comprises a power configured for at least one cell group of the MT; and
determining a transmission power of the DU and a transmission power of the at least one cell group of the MT; wherein
at least one of the transmission power of the DU or the transmission power of the at least one cell group of the MT is determined according to the configuration power and a transmission priority, wherein
the transmission priority comprises at least one of a transmission priority of the DU, a transmission priority of the MT, or a transmission priority of the at least one cell group of the MT.
20. A non-transitory readable storage medium, storing a program or instructions, wherein the program or instructions, when executed by a processor of a node device, causes the node device to perform:
obtaining a configuration power, wherein the configuration power comprises at least one of a first configuration power or a second configuration power, the first configuration power is a power configured for a distributed unit (DU) of an integrated access backhaul (IAB) node, the second configuration power comprises a power configured for an mobile terminal (MT) in the IAB node and a power configured for at least one cell group of the MT, or the second configuration power comprises a power configured for at least one cell group of the MT; and
determining a transmission power of the DU and a transmission power of the at least one cell group of the MT; wherein
at least one of the transmission power of the DU or the transmission power of the at least one cell group of the MT is determined according to the configuration power and a transmission priority, wherein
the transmission priority comprises at least one of a transmission priority of the DU, a transmission priority of the MT, or a transmission priority of the at least one cell group of the MT.