Power headroom reporting processing method, terminal and network side device

1. A power headroom reporting (PHR) processing method, comprising:

reporting a power headroom reporting media access control element (PHR MAC CE) to a target network side device,

wherein a terminal aggregates a plurality of network side devices of different versions, and the PHR MAC CE includes PH information of one or more cells;

wherein the method further comprises:

for a multiple entry PHR MAC CE, using different logical channel identifiers (LCIDs) to represent multiple entry PHR MAC CEs with different lengths of component carrier (CC) bitmaps.

2. The method according to claim 1 , wherein the PHR MAC CE comprises PH information of all cells configured or activated for the terminal.

3. The method according to claim 1 , wherein the PHR MAC CE includes only PH information of a cell that is identifiable by the target network side device in all cells configured or activated for the terminal.

4. The method according to claim 3 , wherein the cell that is identifiable by the target network side device includes a cell configured by the target network side device for the terminal or a cell configured and activated by the target network side device for the terminal.

5. The method according to claim 3 , wherein when the target network side device is a master node (MN) of the terminal, the PHR MAC CE includes only PH information of a serving cell of the target network side in all cells configured or activated for the terminal; or

wherein when the target network side device is a secondary node (SN) of the terminal, the PHR MAC CE includes only PH information of a primary serving cell (Pcell) of the terminal or a serving cell of the target network side in all cells configured or activated for the terminal.

6. The method according to claim 1 , wherein the terminal aggregates a plurality of network side devices of different versions comprises:

the plurality of network side devices aggregated by the terminal use different types of radio access technologies (RATs); or the plurality of network side devices aggregated by the terminal use the same type of RAT, and protocol versions used by the plurality of network side devices are different.

7. A terminal, comprising a transceiver, a memory, a processor, a user interface, a bus interface, and a program stored on the memory, and executed by the processor, wherein,

the transceiver is used to report a power headroom reporting media access control element (PHR MAC CE) to a target network side device, wherein the terminal aggregates a plurality of network side devices of different versions, and the PHR MAC CE includes PH information of one or more cells;

wherein the processor is used to read the program in the memory and perform the following step:

for a multiple entry PHR MAC CE, using different logical channel identifiers (LCIDs) to represent multiple entry PHR MAC CEs with different lengths of CC bitmaps.

8. The terminal according to claim 7 , wherein the PHR MAC CE includes PH information of all cells configured or activated for the terminal.

9. The terminal according to claim 7 , wherein the PHR MAC CE includes only PH information of a cell that is identifiable by the target network side device in all cells configured or activated for the terminal.

10. The terminal according to claim 9 , wherein the cell that is identifiable by the target network side device includes a cell configured by the target network side device for the terminal or a cell configured and activated by the target network side device for the terminal; or wherein when the target network side device is a MN of the terminal, the PHR MAC CE includes only PH information of a serving cell of the target network side in all cells configured or activated for the terminal; or

wherein when the target network side device is a SN of the terminal, the PHR MAC CE includes only PH information of a primary serving cell (Pcell) of the terminal or a serving cell of the target network side in all cells configured or activated for the terminal; or

when the target network side device is the SN of the terminal, the PHR MAC CE includes only PH information of the serving cell of the target network side in all cells configured or activated for the terminal.

11. The terminal according to claim 7 , wherein the terminal aggregates a plurality of network side devices of different versions comprises:

the plurality of network side devices aggregated by the terminal use different types of radio access technologies (RATs); or the plurality of network side devices aggregated by the terminal use the same type of RAT, and protocol versions used by the plurality of network side devices are different.

12. A power headroom reporting (PHR) processing method, comprising:

receiving, by a target network side device, a power headroom reporting media access control element (PHR MAC CE) reported by a terminal, wherein the terminal aggregates a plurality of network side devices of different versions, and the PHR MAC CE includes PH information of one or more cells; and

reading PH information corresponding to a cell that is identifiable by the target network side device in the PHR MAC CE;

wherein for a multiple entry PHR MAC CE, different LCIDs represent multiple entry PHR MAC CEs having different lengths of CC bitmap.

13. The method according to claim 12 , wherein the PHR MAC CE includes PH information of all cells configured or activated for the terminal; or

wherein the PHR MAC CE includes only PH information of a cell that is identifiable by the target network side device in all cells configured or activated for the terminal.

14. The method according to claim 13 , further comprising:

ignoring PH information corresponding to a cell that cannot be identified by the target network side device in the PHR MAC CE.

15. The method according to claim 13 , wherein the reading PH information corresponding to a cell that is identifiable by the target network side device in the PHR MAC CE comprises:

determining a length of a component carrier (CC) bitmap in the PHR MAC CE; and

reading a value of each bit in the CC bitmap based on the length of the CC bitmap, and then reading the PH information corresponding to the cell that is identifiable by the target network side device in the PHR MAC CE based on the value of each bit.

16. The method according to claim 15 , wherein the determining a length of a component carrier (CC) bitmap in the PHR MAC CE comprises:

determining whether the PHR MAC CE belongs to a multiple entry PHR MAC CE based on a logical channel identifier (LCID) included in a MAC sub-header corresponding to the received PHR MAC CE;

if yes, for the PHR MAC CE, performing blind detection on the length of CC bitmap based on CC bitmap lengths of 1 byte and 4 bytes respectively, and determining the length of the CC bitmap based on a blind detection result; or

wherein the determining a length of a component carrier (CC) bitmap in the PHR MAC CE comprises:

determining whether the PHR MAC CE belongs to a multiple entry PHR MAC CE based on the LCID included in the MAC sub-header corresponding to the received PHR MAC CE;

if yes, determining a maximum cell number of the terminal based on a cell number configured for the terminal by the target network side device and a cell number configured for the terminal by other network side devices aggregated by the terminal acquired in advance, or a maximum cell number configured for the terminal by the other network side devices; or

wherein the determining a length of a component carrier (CC) bitmap in the PHR MAC CE comprises:

determining the length of CC bitmap in the PHR MAC CE based on the LCID included in the MAC sub-header corresponding to the received PHR MAC CE.

17. The method according to claim 13 , wherein when the target network side device is a MN of the terminal, the PHR MAC CE includes only PH information of a serving cell of the target network side in all cells configured or activated for the terminal;

wherein the reading PH information corresponding to a cell that is identifiable by the target network side device in the PHR MAC CE comprises:

reading corresponding PH information in the PHR MAC CE based on a CC number allocated by the target network side device to the terminal.

18. The method according to claim 13 , wherein when the target network side device is a SN of the terminal, the PHR MAC CE includes only PH information of a primary serving cell (Pcell) of the terminal or a serving cell of the target network side in all cells configured or activated for the terminal; or

when the target network side device is the SN of the terminal, the PHR MAC CE includes only PH information of the serving cell of the target network side in all cells configured or activated for the terminal;

wherein when the PHR MAC CE includes only the PH information of the PCell of the terminal and the serving cell of the target network side device in all cells configured or activated for the terminal, the reading PH information corresponding to a cell that is identifiable by the target network side device in the PHR MAC CE comprises:

ignoring the PH information corresponding to the PCell;

reading the corresponding PH information in the PHR MAC CE based on the CC number allocated by the target network side device to the terminal; and

when the PHR MAC CE includes only PH information of the serving cell of the target network side device in all cells configured or activated for the terminal, the reading PH information corresponding to a cell that is identifiable by the target network side device in the PHR MAC CE comprises:

reading the corresponding PH information in the PHR MAC CE based on the CC number allocated by the target network side device to the terminal.

19. A network side device, comprising a transceiver, a memory, a processor, a bus interface, and a program stored on the memory and executed by the processor to implement the PHR processing method according to claim 12 .