Uplink transmission method, device, user terminal, and base station

1. An uplink transmission method applied in and performed by a user terminal, comprising:

acquiring uplink scheduling information transmitted by a base station and indication information of a transmission opportunity currently occupied by the base station, wherein the uplink scheduling information carries information which represents a position of a resource occupied by an uplink channel, and uplink channel being scheduled by the base station for the user terminal;

determining the position of the uplink channel in accordance with the uplink scheduling information;

determining a listening type of the uplink channel in accordance with the position of the uplink channel and the indication information of the transmission opportunity, wherein a listening type used when the uplink channel is within the transmission opportunity is different from a listening type used when the uplink channel is outside the transmission opportunity; and

transmitting uplink data to the base station in the uplink channel when the uplink channel is listened to be in an idle state using the listening type of the uplink channel.

2. The uplink transmission method according to claim 1 , wherein the indication information includes at least one of: information on a length of time occupied in the transmission opportunity, information on a length of remaining time other than the time occupied in the transmission opportunity, listening type information, listening type switching information, or a relationship between the listening type and a scheduled uplink channel.

3. The uplink transmission method according to claim 2 , wherein acquiring the uplink scheduling information transmitted by the base station and the indication information of the transmission opportunity currently occupied by the base station comprises:

transmitting an uplink scheduling request to the base station currently accessed by the user terminal; and

receiving the uplink scheduling information transmitted by the base station in response to the uplink scheduling request, the uplink scheduling information carrying the indication information of the transmission opportunity currently occupied by the base station.

4. The uplink transmission method according to claim 2 , wherein acquiring the uplink scheduling information transmitted by the base station and the indication information of the transmission opportunity currently occupied by the base station comprises:

transmitting an uplink scheduling request to the base station currently accessed by the user terminal; and

receiving the uplink scheduling information transmitted by the base station in response to the uplink scheduling request, and receiving the indication information of the transmission opportunity currently occupied by the base station, the indication information being transmitted by the base station through a common channel.

5. The uplink transmission method according to claim 1 , wherein determining the listening type of the uplink channel in accordance with the position of the uplink channel and the indication information of the transmission opportunity comprises:

determining the listening type of the uplink channel as a first listening type, when the position of the uplink channel is within the transmission opportunity; and

determining the listening type of the uplink channel as a second listening type, the second listening type being different from the first listening type, when the position of the uplink channel is outside the transmission opportunity.

6. An uplink transmission method applied in a user terminal and comprising:

acquiring uplink scheduling information transmitted by a base station and indication information of a transmission opportunity currently occupied by the base station;

determining a position of an uplink channel scheduled for the user terminal by the base station in accordance with the uplink scheduling information;

determining a listening type of the uplink channel in accordance with the position of the uplink channel and the indication information of the transmission opportunity, wherein a listening type used when the uplink channel is within the transmission opportunity is different from a listening type used when the uplink channel is outside the transmission opportunity; and

transmitting uplink data to the base station in the uplink channel when the uplink channel is listened to be in an idle state using the listening type of the uplink channel,

wherein determining the listening type of the uplink channel in accordance with the position of the uplink channel and the indication information of the transmission opportunity comprises:

determining the listening type of the uplink channel as a first listening type, when the position of the uplink channel is within the transmission opportunity; and

determining the listening type of the uplink channel as a second listening type, the second listening type being different from the first listening type, when the position of the uplink channel is outside the transmission opportunity;

wherein the uplink channel comprises a first uplink channel within the transmission opportunity and a second uplink channel outside the transmission opportunity; and

wherein transmitting uplink data to the base station in the uplink channel when the uplink channel is listened to be in an idle state using the listening type of the uplink channel comprises:

listening to the first uplink channel using the first listening type to determine if the first uplink channel is in the idle state; and

transmitting the uplink data to the base station in the first uplink channel when determining that the first uplink channel is in the idle state.

7. The uplink transmission method according to claim 6 , wherein transmitting uplink data to the base station in the uplink channel when the uplink channel is listened to be in an idle state using the listening type of the uplink channel comprises:

listening to the second uplink channel using the second listening type to determine if the second uplink channel is in the idle state; and

transmitting the uplink data to the base station in the second uplink channel when determining that the second uplink channel is in the idle state.

8. The uplink transmission method according to claim 6 , wherein the method further comprises, after transmitting the uplink data to the base station in the first uplink channel when determining that the first uplink channel is in the idle state:

switching from the first listening type to the second listening type when the first uplink channel ends and the second uplink channel starts;

listening to the second uplink channel using the second listening type to determine if the second uplink channel is in the idle state; and

transmitting the uplink data to the base station in the second uplink channel when determining that the second uplink channel is in the idle state.

9. The uplink transmission method according to claim 7 , wherein the method further comprises, after transmitting the uplink data to the base station in the second uplink channel when determining that the second uplink channel is in the idle state:

switching from the second listening type to the first listening type when the second uplink channel ends and the first uplink channel starts;

listening to the first uplink channel using the first listening type to determine if the first uplink channel is in the idle state; and

transmitting the uplink data to the base station in the first uplink channel when determining that the first uplink channel is in the idle state.

10. The uplink transmission method according to claim 7 , wherein the method further comprises, prior to listening to the second uplink channel using the second listening type to determine if the second uplink channel is in the idle state:

determining an access level of the second listening type in accordance with the indication information and uplink data to be transmitted.

11. The uplink transmission method according to claim 7 , wherein listening to the second uplink channel using the second listening type to determine if the second uplink channel is in the idle state comprises:

reserving last N subframes or symbols of the first uplink channel and/or first N subframes or symbols of the second uplink channel as a listening channel, N being a positive integer; and

listening to the second uplink channel using the second listening type in the listening channel to determine if the second uplink channel is in the idle state.

12. The uplink transmission method according to claim 11 , wherein the second uplink channel comprises multiple uplink sub-channels;

wherein the method further comprises, after listening to the second uplink channel using the second listening type in the listening channel to determine if the second uplink channel is in the idle state:

reserving N subframes or symbols at adjacent positions of uplink sub-channels other than a first uplink sub-channel in the second uplink channel as a listening sub-channel; and

listening to the uplink sub-channels other than the first uplink sub-channel of the second uplink channel in the listening sub-channel to determine if the uplink sub-channels other than a first uplink sub-channel of the second uplink channel are in the idle state.

13. An uplink transmission method applied in a base station and comprising:

transmitting uplink scheduling information and indication information of a transmission opportunity currently occupied by the base station to a user terminal, such that a position of an uplink channel scheduled by the base station for the user terminal is determined by the user terminal in accordance with the uplink scheduling information and a listening type of the uplink channel is determined by the user terminal in accordance with the position of the uplink channel and the indication information of the transmission opportunity, wherein the uplink scheduling information carries information which represents the position of a resource occupied by the uplink channel, a listening type used when the uplink channel is within the transmission opportunity is different from a listening type used when the uplink channel is outside the transmission opportunity; and

receiving uplink data transmitted by the user terminal in an uplink channel which is listened to be in an idle state using the listening type of the uplink channel.

14. The uplink transmission method according to claim 13 , wherein the indication information includes at least one of: information on a length of time occupied in the transmission opportunity, information on a length of remaining time other than the time occupied in the transmission opportunity, listening type information, listening type switching information, or a relationship between the listening type and a scheduled uplink channel.

15. The uplink transmission method according to claim 14 , wherein transmitting uplink scheduling information and indication information of a transmission opportunity currently occupied by the base station to a user terminal comprises:

acquiring an uplink scheduling request transmitted by the user terminal covered by the base station; and

transmitting to the user terminal uplink scheduling information carrying the indication information of the transmission opportunity currently occupied by the base station in accordance with the uplink scheduling request.