Method, user equipment and base station for transmitting uplink control information
The disclosure discloses a method for transmitting uplink control information. The method includes: receiving, by a user equipment, a carrier activation command or a carrier deactivation command in a downlink subframe n; updating a first downlink activated carrier set according to the received carrier activation command or the carrier deactivation command into a second downlink activated carrier set; taking the second downlink activated carrier set as a current downlink activated carrier set corresponding to a first uplink subframe which belongs to a subframe set of an uplink subframe n+k and uplink subframe(s) after the uplink subframe n+k; sorting X piece(s) of Uplink Control Information (UCI) corresponding to X downlink carrier(s) according to a sorting rule, and transmitting the sorted X pieces of UCI to a base station in the first uplink subframe.
1. A method for transmitting uplink control information, comprising:
receiving, by a user equipment (UE), a carrier activation command or a carrier deactivation command in a downlink subframe n;
updating, by the UE, a first downlink activated carrier set according to the received carrier activation command or the carrier deactivation command into a second downlink activated carrier set;
taking, by the UE, the second downlink activated carrier set as a current downlink activated carrier set corresponding to a first uplink subframe; wherein the first uplink subframe belongs to a subframe set of an uplink subframe n+k and at least one uplink subframe after the uplink subframe n+k; and wherein n or k is a positive integer, and k is greater than or equal to 5;
sorting, by the UE, X pieces of Uplink Control Information (UCI) corresponding to X downlink carriers according to a sorting rule, wherein X is a positive integer, and the X downlink carriers belong to the current downlink activated carrier set; and
transmitting, by the UE, the sorted X pieces of UCI to a base station in the first uplink subframe.
2. The method according to claim 1 , wherein before the taking, by the UE, the second downlink activated carrier set as the current downlink activated carrier set, the method further comprises:
taking, by the UE, the first downlink activated carrier set as the current downlink activated carrier set corresponding to a second uplink subframe of the at least one uplink subframe before the uplink subframe n+k;
sorting, by the UE, Y pieces of UCI corresponding to Y downlink carriers according to the sorting rule, wherein Y is a positive integer, and the Y downlink carriers belong to the current downlink activated carrier set; and
transmitting, by the UE, the sorted Y pieces of UCI to the base station in the second uplink subframe.
3. The method according to claim 2 wherein the transmitting the sorted Y pieces of UCI to the base station comprises:
calculating, by the UE, a number of modulation symbols occupied by the sorted Y pieces of UCI according to the first downlink activated carrier set;
calculating, by the UE, a number of bits generated by channel coding of the sorted Y pieces of UCI according to the calculated number of modulation symbols;
performing, by the UE, the channel coding for the sorted Y pieces of UCI according to the calculated number of bits generated by the channel coding;
multiplexing the UCI, which has undergone the channel coding, on a Physical Uplink Share Channel (PUSCH) with data; and
transmitting the multiplexed UCI to the base station.
4. The method according to claim 1 wherein the transmitting the sorted X pieces of UCI to the base station comprises:
calculating, by the UE, a number of modulation symbols occupied by the sorted X pieces of UCI according to the second downlink activated carrier set;
calculating, by the UE, a number of bits generated by channel coding of the sorted X pieces of UCI according to the calculated number of modulation symbols;
performing, by the UE, the channel coding for the sorted X pieces of UCI according to the calculated number of bits generated by the channel coding;
multiplexing the UCI, which has undergone the channel coding, on a Physical Uplink Share Channel (PUSCH) with data; and
transmitting the multiplexed UCI to the base station.
5. The method according to claim 1 , wherein the sorting rule comprises:
sorting the X pieces of UCI corresponding to the X downlink carriers according to an increasing order of attributes of the X downlink carriers, wherein an attribute is a carrier index or a carrier frequency.
6. The method according to claim 1 , wherein when the UCI of the UE is channel state information (CSI), the X downlink carriers are determined according to CSI configuration configured by higher layers and whether aperiodic CSI is to be reported.
7. A method for transmitting uplink control information, comprising:
sending, by a base station, a carrier activation command or a carrier deactivation command in a downlink subframe n;
receiving, by the base station, sorted X pieces of Uplink Control Information (UCI) corresponding to X downlink carriers in a first uplink subframe from a user equipment (UE); and
determining, by the base station, a piece of UCI corresponding to a downlink carrier of the X downlink carriers from the sorted X pieces of UCI according to a sorting rule;
wherein the sorted X pieces of UCI are sorted by the UE according to the sorting rule;
wherein X is a positive integer, and the X downlink carriers belong to a current downlink activated carrier set;
wherein a first downlink activated carrier set is updated by the UE into a second downlink activated carrier set according to the carrier activation command or the carrier deactivation command and the second downlink activated carrier is taken as the current downlink activation carrier set corresponding to the first uplink subframe; and
wherein the first uplink subframe belongs to a subframe set of an uplink subframe n+k and at least one uplink subframe after the uplink subframe n+k, and n or k is a positive integer, and k is greater than or equal to 5.
8. The method according to claim 7 , wherein the determining, by the base station, the piece of UCI corresponding to the downlink carrier of the X downlink carriers from the sorted X pieces of UCI according to the sorting rule, comprises:
calculating, by the base station, a number of modulation symbols occupied by the sorted X pieces of the UCI according to the second downlink activated carrier set;
calculating, by the base station, a number of bits generated by channel coding of the sorted X pieces of UCI according to the calculated number of modulation symbols;
performing, by the base station, channel decoding on the received sorted X pieces of the UCI according to the calculated number of bits generated by the channel coding; and
determining, by the base station, the piece of UCI corresponding to the downlink carrier of the X downlink carriers from the channel decoded UCI according to the sorting rule.
9. The method according to claim 7 , wherein the sorting rule is preset by:
sorting the X pieces of UCI corresponding to the X downlink carriers according to an increasing order of attributes of the X downlink carriers, wherein an attribute is a carrier index or a carrier frequency.
10. The method according to claim 7 , wherein when the UCI of the UE is channel state information (CSI), the X downlink carriers are determined according to CSI configuration configured by higher layers and whether aperiodic CSI is to be reported.
11. A user equipment (UE), comprising:
a receiver, configured to receive a carrier activation command or a carrier deactivation command in a downlink subframe n;
a processor, configured to update a first downlink activated carrier set according to the received carrier activation command or the carrier deactivation command into a second downlink activated carrier set; take the second downlink activated carrier set as a current downlink activated carrier set corresponding to a first uplink subframe; and sort X pieces of Uplink Control Information (UCI) corresponding to X downlink carriers according to a sorting rule, wherein the first uplink subframe belongs to a subframe set of an uplink subframe n+k and at least one uplink subframe after the uplink subframe n+k, n or k is a positive integer, k is greater than or equal to 5, X is a positive integer, and the X downlink carriers belong to the current downlink activated carrier set; and
a transmitter, configured to transmit the sorted X pieces of UCI to a base station in the first uplink subframe.
12. The UE according to claim 11 , wherein before the taking the second downlink activated carrier set as a current downlink activated carrier set, the processor is further configure to:
take the first downlink activated carrier set as the current downlink activated carrier set corresponding to a second uplink subframe of the at least one uplink subframe before the uplink subframe n+k; and
sort Y pieces of UCI corresponding to Y downlink carriers according to the sorting rule, wherein Y is a positive integer, and the Y downlink carriers belong to the current downlink activated carrier set;
wherein the transmitter is further configured to transmit the sorted Y pieces of UCI to the base station in the second uplink subframe.
13. The UE according to claim 12 , wherein the processor is further configure to:
calculate a number of modulation symbols occupied by the sorted Y pieces of UCI according to the first downlink activated carrier set;
calculate a number of bits generated by channel coding of the sorted Y pieces of UCI according to the calculated number of modulation symbols;
perform the channel coding for the sorted Y pieces of UCI according to the calculated number of bits generated by the channel coding; and
multiplex the UCI, which has undergone the channel coding, on a Physical Uplink Share Channel (PUSCH) with data;
wherein the transmitter is further configured to:
transmit the multiplexed UCI to the base station.
14. The UE according to claim 11 , wherein the processor is further configure to:
calculate a number of modulation symbols occupied by the sorted X pieces of UCI according to the second downlink activated carrier set;
calculate a number of bits generated by channel coding of the sorted X pieces of UCI according to the calculated number of modulation symbols;
perform the channel coding for the sorted X pieces of UCI according to the calculated number of bits generated by the channel coding; and
multiplex the UCI, which has undergone the channel coding, on a Physical Uplink Share Channel (PUSCH) with data;
wherein the transmitter is further configured to: transmit the multiplexed UCI to the base station.
15. The UE according to claim 11 , wherein the sorting rule comprises:
sorting the X pieces of UCI corresponding to the X downlink carriers according to an increasing order of attributes of the X downlink carriers, wherein an attribute is a carrier index or a carrier frequency.
16. The UE according to claim 11 , wherein when the UCI of the UE is channel state information (CSI), the X downlink carriers are determined according to CSI configuration configured by higher layers and whether aperiodic CSI is to be reported.
17. A base station, comprising:
a transmitter, configured to send a carrier activation command or a carrier deactivation command in a downlink subframe n;
a receiver, configured to receive sorted X pieces of Uplink Control Information (UCI) corresponding to X downlink carriers in a first uplink subframe from a user equipment (UE); and
a processor, configured to determine a piece of UCI corresponding to a downlink carrier of the X downlink carriers from the sorted X pieces of UCI according to the sorting rule;
wherein the sorted X pieces of UCI are sorted by the UE according to a sorting rule;
wherein X is a positive integer, and the X downlink carriers belong to a current downlink activated carrier set;
wherein a first downlink activated carrier set is updated by the UE into a second downlink activated carrier set according to the carrier activation command or the carrier deactivation command and the second downlink activated carrier is taken as the current downlink activation carrier set corresponding to the first uplink subframe; and
wherein the first uplink sub frame belongs to a subframe set of an uplink subframe n+k and at least one uplink subframe after the uplink subframe n+k, and n or k is a positive integer, and k is greater than or equal to 5.
18. The base station according to claim 17 , wherein the processor is further configure to:
calculate a number of modulation symbols occupied by the sorted X pieces of the UCI according to the second downlink activated carrier set;
calculate a number of bits generated by channel coding of the sorted X pieces of UCI according to the calculated number of modulation symbols;
perform channel decoding on the received sorted X pieces of the UCI according to the calculated number of bits generated by the channel coding; and
determine the piece of UCI corresponding to the downlink carrier of the X downlink carriers from the channel decoded UCI according to the sorting rule.
19. The base station according to claim 17 , wherein the sorting rule is preset by:
sorting the X pieces of UCI corresponding to the X downlink carriers according to an increasing order of attributes of the X downlink carriers, wherein an attribute is a carrier index or a carrier frequency.
20. The base station according to claim 17 , wherein when the UCI of the UE is channel state information (CSI), the X downlink carriers are determined according to CSI configuration configured by higher layers and whether aperiodic CSI is to be reported.