Method, user equipment and base station for transmitting uplink control information

• US 9,807,741 B2
• Filed: 11/05/2014
• Issued: 10/31/2017
• Est. Priority Date: 04/07/2010
• Status: Active Grant

• Current Assignee: Bejing Jingshi Intellectual Property Management Company Limited
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Cheng, Yan, Lv, Yongxia, Chen, Xiaobo
• Primary Examiner(s): Nguyen, Hanh N
• Assistant Examiner(s): Perez, Jose L
• Application Number:
  US14/533,938
• Publication Number:
  US 20150063269A1
• Time in Patent Office: 1,091 Days
• Field of Search: None
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/004 by using forward error control H04L1/0618 takes precedence; coding, decoding or code conversion, for error detection or correction H03M13/00
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0073 Special arrangements for feedback channel
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 2001/125 Arrangements for preventing errors in the return channel
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

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.

Claims

1. A method comprising:

sorting, by a user equipment, uplink control information (UCI) of a quantity X downlink carriers according to a preset sorting rule, wherein X is a positive integer, wherein the X downlink carriers belong to a downlink component carrier set of the user equipment, wherein the downlink component carrier set of the user equipment comprises at least two downlink component carriers, and wherein at least one downlink carrier in the X downlink carriers belongs to a downlink activated carrier set of the user equipment;

calculating, by the user equipment, a number of modulation symbols occupied by the UCI according to a first carrier set, wherein the first carrier set is the downlink component carrier set of the user equipment;

calculating, by the user equipment, a number of bits generated by channel coding the UCI according to the number of modulation symbols occupied by the UCI;

performing, by the user equipment, the channel coding for the sorted UCI of the X downlink carriers according to the number of bits generated by channel coding the UCI;

mapping, by the user equipment, the channel coded UCI of the X downlink carriers to a physical channel; and

transmitting, by the user equipment, the mapped UCI of the X downlink carriers to a base station.

2. The method according to claim 1, wherein, when the UCI is hybrid automatic repeat request (HARQ) acknowledgment information, the X downlink carriers are all downlink carriers in the downlink activated carrier set.

3. The method according to claim 1, wherein, when the UCI is channel state information (CSI), the X downlink carriers are determined according to a CSI configuration configured by higher layers and whether aperiodic CSI is reported;

and

wherein the X downlink carriers belong to the downlink activated carrier set of the user equipment.

4. The method according to claim 1, wherein the preset sorting rule is sorting according to an increasing order of attributes of downlink carriers corresponding to the UCI.

5. The method according to claim 4, wherein, if multiple downlink carriers of the X downlink carriers are activated at a same time, the UCI of the multiple downlink carriers activated at the same time is sorted according to an increasing or a decreasing order of the attributes of the downlink carriers.

6. The method according to claim 4, wherein the attributes of the downlink carriers are carrier indexes or carrier frequencies.

7. The method according to claim 1, wherein when the UCI is channel state information (CSI), the calculating the number of modulation symbols occupied by the UCI according to the first carrier set comprises:

calculating, by the user equipment, the number of modulation symbols occupied by the CSI according to the first carrier set, a CSI configuration configured by higher layers and whether aperiodic CSI is reported.

8. A user equipment, comprising:

a processor and a transmitter;

wherein the processor is configured to;

sort uplink control information (UCI) of a quantity X downlink carriers according to a preset sorting rule, wherein X is a positive integer, wherein the X downlink carriers belong to a downlink component carrier set of the user equipment, wherein the downlink component carrier set of the user equipment comprises at least two downlink component carriers, and wherein at least one downlink carrier in the X downlink carriers belongs to a downlink activated carrier set of the user equipment;

calculate a number of modulation symbols occupied by the UCI according to a first carrier set, wherein the first carrier set is the downlink component carrier set of the user equipment;

calculate a number of bits generated by channel coding the UCI according to the number of modulation symbols occupied by the UCI;

perform the channel coding for the sorted UCI of the X downlink carriers according to the number of bits generated by channel coding the UCI;

map the channel coded UCI of the X downlink carriers to a physical channel;

wherein the transmitter is configured to transmit the mapped UCI of the X downlink carriers to a base station.

9. The user equipment according to claim 8, wherein, when the UCI is hybrid automatic repeat request (HARQ) acknowledgment information, the X downlink carriers are all downlink carriers in the downlink activated carrier set.

10. The user equipment according to claim 8, wherein, when the UCI is channel state information (CSI), the X downlink carriers that are determined according to a CSI configuration configured by higher layers and whether aperiodic CSI is reported, wherein the X downlink carriers belong to the downlink activated carrier set of the user equipment.

11. The user equipment according to claim 8, wherein the preset sorting rule is sorting according to an increasing order of attributes of downlink carriers corresponding to the UCI of the downlink carriers, wherein the attributes of the downlink carriers are carrier indexes or carrier frequencies.

12. The user equipment according to claim 11, wherein, if multiple downlink carriers of the X downlink carriers are activated at a same time, the UCI of the multiple downlink carriers activated at the same time is sorted according to an increasing order of the attributes of the downlink carriers or a decreasing order of the attributes of the downlink carriers.

13. The user equipment according to claim 8, wherein, when the UCI is channel state information (CSI), a number of modulation symbols occupied by the CSI are calculated according to the first carrier set, a CSI configuration configured by higher layers and whether aperiodic CSI is reported.