APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING PHYSICAL UPLINK SHARED CHANNEL SIGNAL IN CELLULAR RADIO COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION SCHEME

• US 20130188532A1
• Filed: 01/18/2013
• Published: 07/25/2013
• Est. Priority Date: 01/20/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: FU, Jingxing, SUN, Chengjun, ZHANG, Shichang
• Granted Patent: US 9,648,595 B2
• Time in Patent Office: Days
• US Class Current: 370/280
• CPC Class Codes: H04B 7/2656 for structure of frame, burst
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04L 5/16 Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

An apparatus and a method for transmitting/receiving a Physical Uplink Shared CHannel (PUSCH) signal in a cellular radio communication system supporting a Carrier Aggregation (CA) scheme are provided. In the PUSCH transmission method, a User Equipment (UE) transmits a PUSCH signal to a Base Station (BS) based on an UpLink (UL)/DownLink (DL) Configuration, wherein, for a Time Division Duplexing (TDD) scheme, if the UE is configured with more than one serving cell, UL/DL Configurations of at least two serving cells are different, and a serving cell is one of a primary cell and a secondary cell, a UL/DL Configuration for the serving cell is set as a UL-reference UL/DL Configuration based on a pair formed by a UL/DL Configuration for another serving cell and the UL/DL Configuration for the serving cell.

Claims

1. A method for transmitting a Physical Uplink Shared CHannel (PUSCH) signal by a User Equipment (UE) in a cellular radio communication system supporting a Carrier Aggregation (CA) scheme, the method comprising:

transmitting a PUSCH signal to a Base Station (BS) based on an UpLink (UL)/DownLink (DL) Configuration,

wherein, for a Time Division Duplexing (TDD) scheme, if the UE is configured with more than one serving cell, UL/DL Configurations of at least two serving cells are different, and a serving cell is one of a primary cell and a secondary cell, a UL/DL Configuration for the serving cell is set as a UL-reference UL/DL Configuration based on a pair formed by a UL/DL Configuration for another serving cell and the UL/DL Configuration for the serving cell.

2. The method as claimed in claim 1, wherein the UL/DL Configuration includes information indicating sub-frame indexes mapped to sub-frames through which the UE receives a Physical Downlink Control CHannel (PDCCH) signal and information indicating sub-frame indexes mapped to sub-frames through which the UE transmits the PUSCH signal.

3. The method as claimed in claim 1, wherein, if the UL-reference UL/DL Configuration is a UL/DL Configuration 0, the pair formed by the UL/DL Configuration for the other serving cell and the UL/DL Configuration for the serving cell indicates that the UL/DL Configuration for the other serving cell is the UL/DL Configuration 0 and the UL/DL Configuration for the serving cell is the UL/DL Configuration 0, and

wherein the UL/DL Configuration 0 indicates that the UE transmits the PUSCH signal through an uplink sub-frame 4 if the UE receives a Physical Downlink Control CHannel (PDCCH) signal through a downlink sub-frame 0, the UE transmits the PUSCH signal through an uplink sub-frame 6 if the UE receives the PDCCH signal through a downlink sub-frame 1, the UE transmits the PUSCH signal through the uplink sub-frame 4 if the UE receives the PDCCH signal through a downlink sub-frame 5, and the UE transmits the PUSCH signal through the uplink sub-frame 6 if the UE receives the PDCCH signal through a downlink sub-frame 6.

4. The method as claimed in claim 1, wherein, if the UL-reference UL/DL Configuration is a UL/DL Configuration 6, the pair formed by the UL/DL Configuration for the other serving cell and the UL/DL Configuration for the serving cell indicates that the UL/DL Configuration for the other serving cell is the UL/DL Configuration 6 and the UL/DL Configuration for the serving cell is the UL/DL Configuration 6, and

wherein the UL/DL Configuration 6 indicates that the UE transmits the PUSCH signal through an uplink sub-frame 7 if the UE receives a Physical Downlink Control CHannel (PDCCH) signal through a downlink sub-frame 0, the UE transmits the PUSCH signal through the uplink sub-frame 7 if the UE receives the PDCCH signal through a downlink sub-frame 1, the UE transmits the PUSCH signal through the uplink sub-frame 7 if the UE receives the PDCCH signal through a downlink sub-frame 6, and the UE transmits the PUSCH signal through an uplink sub-frame 5 if the UE receives the PDCCH signal through a downlink sub-frame 9.

5. The method as claimed in claim 1, wherein the primary cell is a cell through which the UE receives a Physical Downlink Control CHannel (PDCCH) signal and a Physical Hybrid Automatic Retransmission reQuest (HARQ) Indicator CHannel (PHICH) signal, and

wherein the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

6. The method as claimed in claim 1, wherein the secondary cell is a cell through which the UE transmits the PUSCH signal, and

wherein the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

7. The method as claimed in claim 1, wherein the UE operates in more than one cell, and the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

8. The method as claimed in claim 1, further comprising:

receiving the UL/DL Configuration from the BS,

wherein the UL/DL Configuration is received through a Physical Downlink Control CHannel (PDCCH).

9. A method for transmitting a Physical Downlink Control CHannel (PDCCH) signal by a Base Station (BS) in a cellular radio communication system supporting a Carrier Aggregation (CA) scheme, the method comprising:

transmitting a PDCCH signal including an UpLink (UL)/DownLink (DL) Configuration as information related to a Physical Uplink Shared CHannel (PUSCH) signal transmission for a User Equipment (UE) to the UE,

wherein, for a Time Division Duplexing (TDD) scheme, if the UE is configured with more than one serving cell, UL/DL Configurations of at least two serving cells are different, and a serving cell is one of a primary cell and a secondary cell, a UL/DL Configuration for the serving cell is set as a UL-reference UL/DL Configuration based on a pair formed by a UL/DL Configuration for another serving cell and the UL/DL Configuration for the serving cell.

10. The method as claimed in claim 9, wherein the UL/DL Configuration includes information indicating sub-frame indexes mapped to sub-frames through which the UE receives a Physical Downlink Control CHannel (PDCCH) signal and information indicating sub-frame indexes mapped to sub-frames through which the UE transmits the PUSCH signal.

11. The method as claimed in claim 9, wherein, if the UL-reference UL/DL Configuration is a UL/DL Configuration 0, the pair formed by the UL/DL Configuration for the other serving cell and the UL/DL Configuration for the serving cell indicates that the UL/DL Configuration for the other serving cell is the UL/DL Configuration 0 and the UL/DL Configuration for the serving cell is the UL/DL Configuration 0, and

wherein the UL/DL Configuration 0 indicates that the UE transmits the PUSCH signal through an uplink sub-frame 4 if the UE receives the PDCCH signal through a downlink sub-frame 0, the UE transmits the PUSCH signal through an uplink sub-frame 6 if the UE receives the PDCCH signal through a downlink sub-frame 1, the UE transmits the PUSCH signal through the uplink sub-frame 4 if the UE receives the PDCCH signal through a downlink sub-frame 5, and the UE transmits the PUSCH signal through the uplink sub-frame 6 if the UE receives the PDCCH signal through a downlink sub-frame 6.

12. The method as claimed in claim 9, wherein, if the UL-reference UL/DL Configuration is a UL/DL Configuration 6, the pair formed by the UL/DL Configuration for the other serving cell and the UL/DL Configuration for the serving cell indicates that the UL/DL Configuration for the other serving cell is the UL/DL Configuration 6 and the UL/DL Configuration for the serving cell is the UL/DL Configuration 6, and

wherein the UL/DL Configuration 6 indicates that the UE transmits the PUSCH signal through an uplink sub-frame 7 if the UE receives the PDCCH signal through a downlink sub-frame 0, the UE transmits the PUSCH signal through the uplink sub-frame 7 if the UE receives the PDCCH signal through a downlink sub-frame 1, the UE transmits the PUSCH signal through the uplink sub-frame 7 if the UE receives the PDCCH signal through a downlink sub-frame 6, and the UE transmits the PUSCH signal through an uplink sub-frame 5 if the UE receives the PDCCH signal through a downlink sub-frame 9.

13. The method as claimed in claim 9, wherein the primary cell is a cell through which the UE receives the PDCCH signal and a Physical Hybrid Automatic Retransmission reQuest (HARQ) Indicator CHannel (PHICH) signal, and

wherein the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

14. The method as claimed in claim 9, wherein the secondary cell is a cell through which the UE transmits the PUSCH signal, and

wherein the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

15. The method as claimed in claim 9, wherein the UE operates in more than one cell, and the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

16. The method as claimed in claim 9, further comprising:

receiving the PUSCH signal from the UE.

17. A User Equipment (UE) in a cellular radio communication system supporting a Carrier Aggregation (CA) scheme, the UE comprising:

a transmitter for transmitting a Physical Uplink Shared CHannel (PUSCH) signal to a Base Station (BS) based on an UpLink (UL)/DownLink (DL) Configuration,

wherein, for a Time Division Duplexing (TDD) scheme, if the UE is configured with more than one serving cell, UL/DL Configurations of at least two serving cells are different, and a serving cell is one of a primary cell and a secondary cell, a UL/DL Configuration for the serving cell is set as a UL-reference UL/DL Configuration based on a pair formed by a UL/DL Configuration for another serving cell and the UL/DL Configuration for the serving cell.

18. The UE as claimed in claim 17, wherein the UL/DL Configuration includes information indicating sub-frame indexes mapped to sub-frames through which the UE receives a Physical Downlink Control CHannel (PDCCH) signal and information indicating sub-frame indexes mapped to sub-frames through which the UE transmits the PUSCH signal.

19. The UE as claimed in claim 17, wherein, if the UL-reference UL/DL Configuration is a UL/DL Configuration 0, the pair formed by the UL/DL Configuration for the other serving cell and the UL/DL Configuration for the serving cell indicates that the UL/DL Configuration for the other serving cell is the UL/DL Configuration 0 and the UL/DL Configuration for the serving cell is the UL/DL Configuration 0, and

wherein the UL/DL Configuration 0 indicates that the UE transmits the PUSCH signal through an uplink sub-frame 4 if the UE receives a Physical Downlink Control CHannel (PDCCH) signal through a downlink sub-frame 0, the UE transmits the PUSCH signal through an uplink sub-frame 6 if the UE receives the PDCCH signal through a downlink sub-frame 1, the UE transmits the PUSCH signal through the uplink sub-frame 4 if the UE receives the PDCCH signal through a downlink sub-frame 5, and the UE transmits the PUSCH signal through the uplink sub-frame 6 if the UE receives the PDCCH signal through a downlink sub-frame 6.

20. The UE as claimed in claim 17, wherein, if the UL-reference UL/DL Configuration is a UL/DL Configuration 6, the pair formed by the UL/DL Configuration for the other serving cell and the UL/DL Configuration for the serving cell indicates that the UL/DL Configuration for the other serving cell is the UL/DL Configuration 6 and the UL/DL Configuration for the serving cell is the UL/DL Configuration 6, and

wherein the UL/DL Configuration 6 indicates that the UE transmits the PUSCH signal through an uplink sub-frame 7 if the UE receives a Physical Downlink Control CHannel (PDCCH) signal through a downlink sub-frame 0, the UE transmits the PUSCH signal through the uplink sub-frame 7 if the UE receives the PDCCH signal through a downlink sub-frame 1, the UE transmits the PUSCH signal through the uplink sub-frame 7 if the UE receives the PDCCH signal through a downlink sub-frame 6, and the UE transmits the PUSCH signal through an uplink sub-frame 5 if the UE receives the PDCCH signal through a downlink sub-frame 9.

21. The UE as claimed in claim 17, wherein the primary cell is a cell through which the UE receives a Physical Downlink Control CHannel (PDCCH) signal and a Physical Hybrid Automatic Retransmission reQuest (HARQ) Indicator CHannel (PHICH) signal, and

wherein the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

22. The UE as claimed in claim 17, wherein the secondary cell is a cell through which the UE transmits the PUSCH signal, and

wherein the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

23. The UE as claimed in claim 17, wherein the UE operates in more than one cell, and the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

24. The UE as claimed in claim 17, further comprising:

a receiver for receiving the UL/DL Configuration from the BS,

wherein the UL/DL Configuration is received through a Physical Downlink Control CHannel (PDCCH).

25. A Base Station (BS) in a cellular radio communication system supporting a Carrier Aggregation (CA) scheme, the BS comprising:

a transmitter for transmitting a Physical Downlink Control CHannel (PDCCH) signal including UpLink (UL)/DownLink (DL) Configuration as information related to a Physical Uplink Shared CHannel (PUSCH) signal transmission for a User Equipment (UE) to the UE,

wherein, for a Time Division Duplexing (TDD) scheme, if the UE is configured with more than one serving cell, UL/DL Configurations of at least two serving cells are different, and a serving cell is one of a primary cell and a secondary cell, a UL/DL Configuration for the serving cell is set as a UL-reference UL/DL Configuration based on a pair formed by a UL/DL Configuration for another serving cell and the UL/DL Configuration for the serving cell.

26. The BS as claimed in claim 25, wherein the UL/DL Configuration includes information indicating sub-frame indexes mapped to sub-frames through which the UE receives a Physical Downlink Control CHannel (PDCCH) signal and information indicating sub-frame indexes mapped to sub-frames through which the UE transmits the PUSCH signal.

27. The BS as claimed in claim 25, wherein, if the UL-reference UL/DL Configuration is a UL/DL Configuration 0, the pair formed by the UL/DL Configuration for the other serving cell and the UL/DL Configuration for the serving cell indicates that the UL/DL Configuration for the other serving cell is the UL/DL Configuration 0 and the UL/DL Configuration for the serving cell is the UL/DL Configuration 0, and

wherein UL/DL Configuration 0 indicates that the UE transmits the PUSCH signal through an uplink sub-frame 4 if the UE receives the PDCCH signal through a downlink sub-frame 0, the UE transmits the PUSCH signal through an uplink sub-frame 6 if the UE receives the PDCCH signal through a downlink sub-frame 1, the UE transmits the PUSCH signal through the uplink sub-frame 4 if the UE receives the PDCCH signal through a downlink sub-frame 5, and the UE transmits the PUSCH signal through the uplink sub-frame 6 if the UE receives the PDCCH signal through a downlink sub-frame 6.

28. The BS as claimed in claim 25, wherein, if the UL-reference UL/DL Configuration is a UL/DL Configuration 6, the pair formed by the UL/DL Configuration for the other serving cell and the UL/DL Configuration for the serving cell indicates that the UL/DL Configuration for the other serving cell is the UL/DL Configuration 6 and the UL/DL Configuration for the serving cell is the UL/DL Configuration 6, and

wherein UL/DL Configuration 6 indicates that the UE transmits the PUSCH signal through an uplink sub-frame 7 if the UE receives the PDCCH signal through a downlink sub-frame 0, the UE transmits the PUSCH signal through the uplink sub-frame 7 if the UE receives the PDCCH signal through a downlink sub-frame 1, the UE transmits the PUSCH signal through the uplink sub-frame 7 if the UE receives the PDCCH signal through a downlink sub-frame 6, and the UE transmits the PUSCH signal through an uplink sub-frame 5 if the UE receives the PDCCH signal through a downlink sub-frame 9.

29. The BS as claimed in claim 25, wherein the primary cell is a cell through which the UE receives the PDCCH signal and a Physical Hybrid Automatic Retransmission reQuest (HARQ) Indicator CHannel (PHICH) signal, and

wherein the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

30. The BS as claimed in claim 25, wherein the secondary cell is a cell through which the UE transmits the PUSCH signal, and

wherein the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

31. The BS as claimed in claim 25, wherein the UE operates in more than one cell, and the cell denotes a Component Carrier (CC) used in the cellular radio communication system supporting the CA scheme.

32. The BS as claimed in claim 25, further comprising:

a receiver for receiving the PUSCH signal from the UE.