Configuration method and device for transmitting uplink control information (UCI)

Patent metadata

Field	Value
Publication number	US-9839012-B2
Application number	US-201113704232-A
Country	US
Kind code	B2
Filing date	May 13, 2011
Priority date	May 24, 2010
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

The present invention discloses a method and equipment for UCI transmission. Upon application of the technical solution provided in embodiments of the present invention, UE transmitting UCI through a selected PUSCH is realized when multiple PUSCH transmissions are available for a UE in one uplink subframe in LTE-A carrier aggregation system, which solves the problem on how to transmit UCI only through one PUSCH when multiple PUSCH transmissions are available.

First claim

The invention claimed is:

1. A method for Uplink Control Information (UCI) transmission, comprising:
selecting, by a user equipment, an uplink component carrier out of its own uplink component carrier set according to a predefined selection rule(s) or received carrier selection indication information sent by an evolved Node B (eNB); and
transmitting, by the user equipment, the UCI to the eNB through a Physical Uplink Shared Channel (PUSCH) or PUSCHs on the selected uplink component carrier,
wherein the user equipment selects the uplink primary component carrier out of its own uplink component carrier set according to the pre-defined selection rule(s) when at least one PUSCH is available for the user equipment on its uplink primary component carrier, and the user equipment selects one uplink secondary component carrier having the smallest number out of uplink component carrier having PUSCH transmission when no PUSCH is available for the user equipment on its uplink primary component carrier.

2. The method as claimed in claim 1 , wherein the user equipment selecting the uplink component carrier out of its own uplink component carrier set according to the predefined selection rule(s) or the received carrier selection indication information sent by the eNB comprises:
selecting, by the user equipment, an uplink component carrier out of its own uplink component carrier set according to the selection rule(s) if there are the selection rule(s) predefined by the eNB and the user equipment; or,
selecting, by the user equipment, an uplink component carrier out of its own uplink component carrier set according to the carrier selection indication information carried by received high layer signaling sent by the eNB; or,
selecting, by the user equipment, an uplink component carrier out of its own uplink component carrier set according to the carrier selection indication information carried by received Physical Downlink Control Channel (PDCCH) signaling.

3. The method as claimed in claim 2 , wherein:
the user equipment is indicated by the predefined selection rule(s) to select its uplink primary component carrier preferentially; or
the user equipment is indicated by the predefined selection rule(s) to select its uplink primary component carrier preferentially when a PUSCH is available for the user equipment on its uplink primary component carrier; or,
the user equipment is indicated by the carrier selection indication information carried by the high layer signaling or the PDCCH signaling to select its uplink primary component carrier preferentially.

4. The method as claimed in claim 1 , wherein:
in the condition that at least one PUSCH is available for the user equipment on the selected uplink component carrier in a current uplink subframe and other PUSCH(s) is available for the user equipment at the same time on other uplink component carrier(s) of the user equipment, the user equipment transmits the UCI to the eNB through the at least one PUSCH on the selected uplink component carrier and only transmits uplink data through the other PUSCH(s) on the other uplink component carrier(s).

5. A user equipment, comprising:
a processor;
a memory, which is connected with the processor and stores program and data used when the processor executes; and
a transceiver, which communicates with other communication devices over a transmission medium,
wherein the user equipment realizes the following processing, when the program and data stored in the memory are called and executed by the processor:
selecting an uplink component carrier out of its own uplink component carrier set according to a predefined selection rule(s) or received carrier selection indication information sent by an evolved Node B (eNB); and
transmitting the UCI to the eNB through a Physical Uplink Shared Channel (PUSCH) or PUSCHs on the selected uplink component carrier,
wherein the user equipment selects the uplink primary component carrier out of its own uplink component carrier set according to the pre-defined selection rule(s) when at least one PUSCH is available for the user equipment on its uplink primary component carrier, and the user equipment selects one uplink secondary component carrier having the smallest number out of uplink component carrier having PUSCH transmission when no PUSCH is available for the user equipment on its uplink primary component carrier.

6. The user equipment as claimed in claim 5 , wherein
the user equipment is configured to receive the carrier selection indication information carried by a high layer signaling or a Physical Downlink Control Channel (PDCCH) signaling sent by the eNB.

7. The user equipment as claimed in claim 6 , wherein
the user equipment is indicated by the received carrier selection indication information carried by the high layer signaling or the PDCCH signaling to select the uplink primary component carrier by the user equipment preferentially.

8. The user equipment as claimed in claim 5 , wherein
the user equipment is configured to select an uplink component carrier out of the uplink component carrier set of the user equipment according to the predefined selection rule(s) if there are the predefined selection rule(s) predefined by the eNB and the user equipment.

9. The user equipment as claimed in claim 8 , wherein
the user equipment is indicated by the predefined selection rule(s) to select the uplink primary component carrier of the user equipment preferentially; or
the user equipment is indicated by the predefined selection rule(s) to select the uplink primary component carrier of the user equipment preferentially when a PUSCH is available for the user equipment on its uplink primary component carrier.

10. The user equipment as claimed in claim 5 , wherein:
in the condition that at least one PUSCH is available for the user equipment on the selected uplink component carrier in a current uplink subframe and other PUSCH(s) is available for the user equipment at the same time on other uplink component carrier(s) of the user equipment, the user equipment transmits the UCI to the eNB through the at least one PUSCH on the selected uplink component carrier and only transmits uplink data through the other PUSCH(s) on the other uplink component carrier(s).

11. A method for Uplink Control Information (UCI) transmission, comprising:
selecting, by an evolved Node B (eNB), an uplink component carrier out of the uplink component carrier set of a user equipment according to a predefined selection rule(s) or current configuration and scheduling information of the user equipment; and
receiving, by the eNB, the UCI transmitted by the user equipment through a Physical Uplink Shared Channel (PUSCH) or PUSCHs on the selected uplink component carrier,
wherein the eNB selects the uplink primary component carrier out of uplink component carrier set of the user equipment according to the pre-defined selection rule(s) when at least one PUSCH is available for the user equipment on its uplink primary component carrier, and the eNB selects one uplink secondary component carrier having the smallest number out of uplink component carrier having PUSCH transmission when no PUSCH is available for the user equipment on its uplink primary component carrier.

12. The method as claimed in claim 11 , wherein the eNB selecting the uplink component carrier out of the uplink component carrier set of the user equipment according to the predefined selection rule(s) or the current configuration and scheduling information of the user equipment comprises:
selecting, by the eNB, an uplink component carrier out of the uplink component carrier set of the user equipment according to the selection rule(

Assignees

• Gao Xuejuan
• Shen Zukang
• Lin Yanan
• Pan Xueming
• China Academy Telecommunications Technology

Inventors

• Gao Xuejuan
• Shen Zukang
• Lin Yanan
• Pan Xueming

Classifications

• H04W72/02

  Selection of wireless resources by user or terminal · CPC title

• H04L5/0053 Primary

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L5/0007 Primary

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/0413 Primary

  Electricity · mapped topic