Method and apparatus for sending data volume report

1. A method for sending a data volume report, applied to a relay system, and comprising:

determining, by a first device, an uplink data volume corresponding to each of a plurality of quality of service flows or requirements of the plurality of quality of service flows based on a mapping relationship between the plurality of quality of service flows and a plurality of data radio bearers (DRBs), and a mapping relationship between the plurality of DRBs and a plurality of logic channels or a plurality of logical channel groups, wherein the first device has a mapping relationship between a plurality of logical channel groups allocated by a relay device located at a next-hop of the first device to a terminal device and a plurality of logical channel groups allocated by the first device to the relay device; and

transmitting, by the first device, a first data volume report comprising the uplink data volume to a first access device when a condition for reporting a data volume is satisfied, wherein the first data volume report indicates a first uplink data volume transmitted from the first device and a second uplink data volume transmitted from a second device and received by the first device, and the condition comprises any one or more of: (1) a sub-condition that at least one of the first uplink data volume or the second uplink data volume is greater than or equal to a predetermined threshold; (2) a time period that the sub-condition is satisfied is greater than or equal to a predetermined time threshold; (3) an instruction instructing the first device to report at least one of the first uplink data volume or a data volume transmitted from the second device; (4) at least one of a plurality of connections between the first device and the first access device is disconnected; or (5) a connection between the first device and a second access device is disconnected.

2. The method according to claim 1 , further comprising:

before the first data volume report is transmitted, transmitting, by the first device, a first request message to a third device, wherein the first request message instructs the third device to report at least one of a third uplink data volume transmitted from the third device or a fourth uplink data volume transmitted from a fourth device determined by the third device;

receiving, by the first device, a second data volume report from the third device, wherein the second data volume report comprises at least one of the third uplink data volume or the fourth uplink data volume; and

determining, by the first device, the first data volume report based on at least one of the second data volume report or the first uplink data volume.

3. The method according to claim 1 , further comprising:

receiving, by the first device, a second data volume report from a third device, wherein the second data volume report instructs the first device to report at least one of the first uplink data volume or the data volume transmitted from the second device; and

determining, by the first device, the first data volume report based on at least one of the second data volume report or the first uplink data volume.

4. The method according to claim 1 , wherein the first data volume report has highest sending priority compared to other data volume reports.

5. The method according to claim 1 , further comprising:

receiving, by the first device and from the first access device, a message for determining a proportion of a data volume sent to the first access device in a data volume to be reported by the first device.

6. The method according to claim 1 , further comprising:

receiving, by the first device, a proportional relationship sent by the first access device, wherein the proportional relationship indicates a proportion of a data volume sent by the first device to the first access device in a data volume to be reported by the first device, and a proportion of a data volume sent by the first device to the second access device in the data volume to be reported by the first device.

7. The method according to claim 1 , further comprising:

receiving, by the first device and from the first access device, a message for determining a proportion of a data volume sent on each of the plurality of connections in the data volume to be reported by the first device.

8. A first device in a relay system, comprising a non-transitory computer-readable storage medium storing instructions; and at least one processor; wherein the instructions are executable by the at least one processor to cause the first device to perform operations comprising:

determining an uplink data volume corresponding to each of a plurality of quality of service flows or requirements of the plurality of quality of service flows based on a mapping relationship between the plurality of quality of service flows and a plurality of data radio bearers (DRBs), and a mapping relationship between the plurality of DRBs and a plurality of logic channels or a plurality of logical channel groups, wherein the first device has a mapping relationship between a plurality of logical channel groups allocated by a relay device located at a next-hop of the first device to a terminal device and a plurality of logical channel groups allocated by the first device to the relay device; and

transmitting, a first data volume report comprising the uplink data volume to a first access device when a condition for reporting a data volume is satisfied, wherein the first data volume report indicates a first uplink data volume transmitted from the first device and a second uplink data volume transmitted from a second device and received by the first device, and the condition comprises any one or more of: (1) a sub-condition that at least one of the first uplink data volume or the second uplink data volume is greater than or equal to a predetermined threshold; (2) a time period that the sub-condition is satisfied is greater than or equal to a predetermined time threshold; (3) an instruction instructing the first device to report at least one of the first uplink data volume or a data volume transmitted from the second device; (4) at least one of a plurality of connections between the first device and the first access device is disconnected; or (5) a connection between the first device and a second access device is disconnected.

9. The first device according to claim 8 , further comprising:

before the first data volume report is transmitted, transmitting a first request message to a third device, wherein the first request message instructs the third device to report at least one of a third uplink data volume transmitted from the third device or a fourth uplink data volume transmitted from a fourth device determined by the third device;

receiving a second data volume report from the third device, wherein the second data volume report comprises at least one of the third uplink data volume or the fourth uplink data volume; and

determining the first data volume report based on at least one of the second data volume report or the first uplink data volume.

10. The first device according to claim 8 , further comprising:

receiving a second data volume report from a third device, wherein the second data volume report instructs the first device to report at least one of the first uplink data volume or the data volume transmitted from the second device; and

determining the first data volume report based on at least one of the second data volume report or the first uplink data volume.

11. The first device according to claim 8 , wherein the first data volume report has highest sending priority compared to other data volume reports.

12. The first device according to claim 8 , further comprising:

receiving, from the first access device, a message for determining a proportion of a data volume sent to the first access device in a data volume to be reported by the first device.

13. The first device according to claim 8 , further comprising:

receiving a proportional relationship sent by the first access device, wherein the proportional relationship indicates a proportion of a data volume sent by the first device to the first access device in a data volume to be reported by the first device, and a proportion of a data volume sent by the first device to the second access device in the data volume to be reported by the first device.

14. The first device according to claim 8 , further comprising:

receiving, from the first access device, a message for determining a proportion of a data volume sent on each of the plurality of connections in the data volume to be reported by the first device.