Method for transmitting uplink data, user equipment, and base station
Embodiments of the present invention provide a method for transmitting uplink data, user equipment, and a base station. The method includes: when user equipment UE correctly receives, in a subframe n, downlink control signaling used for instructing the UE to transmit a physical uplink shared channel PUSCH, determining, by the UE according to the downlink control signaling and a subframe bundling configuration, a bundled subframe for transmitting the PUSCH, where the subframe bundling configuration includes a quantity of bundled subframes; and transmitting the PUSCH in the bundled subframe. In the embodiments of the present invention, a bundled subframe is introduced, which increases scheduling resources for a PUSCH, and enhances coverage performance of a signal.
1. A method for transmitting uplink data, the method comprising:
when user equipment (UE) correctly receives, in a subframe n, downlink control signaling used for instructing the UE to transmit a physical uplink shared channel (PUSCH), determining, by the UE according to the downlink control signaling and a subframe bundling configuration, a bundled subframe for transmitting the PUSCH, wherein the subframe bundling configuration comprises a quantity of bundled subframes; and
transmitting the PUSCH in the bundled subframe.
2. The method according to claim 1 , wherein a current uplink/downlink subframe configuration is a configuration 0, the quantity of bundled subframes is an integer greater than or equal to 1 and less than or equal to 12, a start subframe of the bundled subframe is the k th subframe located after the subframe n, and n and k meet:
when n=0, k=4 or 7;
when n=5, k=4 or 7;
when n=1, k=6 or 7; or
when n=6, k=6 or 7.
3. The method according to claim 1 , wherein a current uplink/downlink subframe configuration is a configuration 3, the quantity of bundled subframes is an integer greater than or equal to 1 and less than or equal to 6, a start subframe of the bundled subframe is the k th subframe located after the subframe n, and n and k meet:
when n=0, k=4;
when n=8, k=4; or
when n=9, k=4.
4. The method according to claim 3 , wherein the quantity of bundled subframes is less than 6, and a quantity of hybrid automatic repeat request (HARQ) processes or a quantity of subframe bundling configurations of the UE is greater than 1.
5. The method according to claim 4 , wherein the quantity of bundled subframes is 2, the quantity of HARQ processes or the quantity of subframe bundling configurations of the UE is 3.
6. The method according to claim 1 , wherein a current uplink/downlink subframe configuration is a configuration 6, the quantity of bundled subframes is an integer greater than or equal to 1 and less than or equal to 10, a start subframe of the bundled subframe is the k th subframe located after the subframe n, and n and k meet:
when n=0, k=7;
when n=1, k=7;
when n=5, k=7;
when n=6, k=7; or
when n=9, k=5.
7. The method according to claim 6 , wherein the quantity of bundled subframes is less than 10, and a quantity of hybrid automatic repeat request (HARQ) processes or a quantity of subframe bundling configurations of the UE is greater than 1.
8. The method according to claim 1 , wherein a current uplink/downlink subframe configuration is a configuration 5, and the quantity of bundled subframes is 2.
9. The method according to claim 1 , wherein the downlink control signaling comprises physical downlink control channel (PDCCH), and the subframe bundling configuration is notified by downlink control information (DCI).
10. An apparatus, comprising:
a processor coupled to a memory, and configured to read instructions included in the memory, wherein when executing the instructions, the processor is configured to:
when the apparatus correctly receives, in a subframe n, downlink control signaling used for instructing the apparatus to transmit a physical uplink shared channel (PUSCH), determine, according to the downlink control signaling and a subframe bundling configuration, a bundled subframe for transmitting the PUSCH, wherein the subframe bundling configuration comprises a quantity of bundled subframes; and
transmit the PUSCH in the bundled subframe determined by the processor.
11. The apparatus according to claim 10 , wherein a current uplink/downlink subframe configuration is a configuration 0, the quantity of bundled subframes is an integer greater than or equal to 1 and less than or equal to 12, a start subframe of the bundled subframe is the k th subframe located after the subframe n, and n and k meet:
when n=0, k=4 or 7;
when n=5, k=4 or 7;
when n=1, k=6 or 7; or
when n=6, k=6 or 7.
12. The apparatus according to claim 10 , wherein a current uplink/downlink subframe configuration is a configuration 3, the quantity of bundled subframes is an integer greater than or equal to 1 and less than or equal to 6, a start subframe of the bundled subframe is the k th subframe located after the subframe n, and n and k meet:
when n=0, k=4;
when n=8, k=4; or
when n=9, k=4.
13. The apparatus according to claim 10 , wherein a current uplink/downlink subframe configuration is a configuration 6, the quantity of bundled subframes is an integer greater than or equal to 1 and less than or equal to 10, a start subframe of the bundled subframe is the k th subframe located after the subframe n, and n and k meet:
when n=0, k=7;
when n=1, k=7;
when n=5, k=7;
when n=6, k=7; or
when n=9, k=5.
14. The apparatus according to claim 10 , wherein a current uplink/downlink subframe configuration is a configuration 5, and the quantity of bundled subframes is 2.
15. The apparatus according to claim 10 , wherein the downlink control signaling comprises a physical downlink control channel (PDCCH), and the subframe bundling configuration is notified by downlink control information (DCI).
16. A non-transitory computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to:
when the computer correctly receives, in a subframe n, downlink control signaling used for instructing the computer to transmit a physical uplink shared channel (PUSCH), determine, according to the downlink control signaling and a subframe bundling configuration, a bundled subframe for transmitting the PUSCH, wherein the subframe bundling configuration comprises a quantity of bundled subframes; and
transmit the PUSCH in the bundled subframe.