Dynamic TDD data channel transmission method and apparatus for wireless communication system

• US 10,219,260 B2
• Filed: 11/09/2015
• Issued: 02/26/2019
• Est. Priority Date: 05/23/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Ji, Hyoungju, Cho, Joonyoung, Choi, Seunghoon, Kim, Youngbum
• Primary Examiner(s): Yao, Kwang B
• Assistant Examiner(s): Loo, Juvena W
• Application Number:
  US14/935,926
• Publication Number:
  US 20160066304A1
• Time in Patent Office: 1,205 Days
• Field of Search: None
• 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 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 56/00 Synchronisation arrangements
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method by a terminal, a method by a base station, a terminal, and a base station are provided. The method by the terminal includes receiving system information including first time division duplex (TDD) configuration information; receiving control information via a higher layer signaling; monitoring a physical downlink control channel (PDCCH) in a first subframe identified based on the control information; and identifying second TDD configuration information based on the monitoring result. The method by the base station includes transmitting system information including first time division duplex (TDD) configuration information; transmitting control information via a higher layer signaling; transmitting downlink control information on a physical downlink control channel (PDCCH) in a first subframe identified based on the control information, wherein the downlink control information is used to identify second TDD configuration information.

Claims

1. A method by a terminal, the method comprising:

receiving system information including a first time division duplex (TDD) configuration, wherein the first TDD configuration is one of a predetermined set of TDD configurations;

receiving configuration information including information associated with a first subframe, via a higher layer signaling;

receiving, on a physical downlink control channel (PDCCH), control information in the first subframe identified based on the configuration information; and

identifying a second TDD configuration, wherein the second TDD configuration is one of a subset of the predetermined set of TDD configurations based on the control information,

wherein the first TDD configuration and the second TDD configuration are associated with a type of each subframe in a radio frame.

2. The method of claim 1, further comprising:

transmitting or receiving data based on the identified second TDD configuration after a second subframe.

3. The method of claim 1, wherein, if the control information is not received on the PDCCH, the second TDD configuration is the same as the first TDD configuration.

4. The method of claim 1, wherein the control information is included in a radio resource control (RRC) message.

5. A method by a base station, the method comprising:

transmitting system information including a first time division duplex (TDD) configuration, wherein the first TDD configuration is one of a predetermined set of TDD configurations;

transmitting configuration information including information associated with a first subframe, via a higher layer signaling;

transmitting, on a physical downlink control channel (PDCCH), control information in the first subframe identified based on the configuration information,

wherein the control information is used to identify a second TDD configuration, wherein the second TDD configuration is one of a subset of the predetermined set of TDD configurations, and

wherein the first TDD configuration and the second TDD configuration are associated with a type of each subframe in a radio frame.

6. The method of claim 5, further comprising:

transmitting or receiving data based on the identified second TDD configuration after a second subframe.

7. The method of claim 5, wherein, if the control information is not transmitted on the PDCCH, the second TDD configuration is the same as the first TDD configuration.

8. The method of claim 5, wherein the control information is included in a radio resource control (RRC) message.

9. A terminal, comprising:

a transceiver; and

a controller configured to;

receive system information including a first time division duplex (TDD) configuration, wherein the first TDD configuration is one of a predetermined set of TDD configurations,

receive configuration information including information associated with a first subframe, via a higher layer signaling,

receive, on a physical downlink control channel (PDCCH), control information in the first subframe identified based on the configuration information, and

identify a second TDD configuration, wherein the second TDD configuration is one of a subset of the predetermined set of TDD configurations based on the control information,

wherein the first TDD configuration and the second TDD configuration are associated with a type of each subframe in a radio frame.

10. The terminal of claim 9, wherein the controller is further configured to transmit or receive data based on the identified second TDD configuration after a second subframe.

11. The terminal of claim 9, wherein the controller is further configured to, if the control information is not received on the PDCCH, identify the second TDD configuration as being identical to the first TDD configuration.

12. The terminal of claim 9, wherein the controller is further configured to receive the control information in a radio resource control (RRC) message.

13. A base station, comprising:

a transceiver; and

a controller configured to;

transmit system information including a first time division duplex (TDD) configuration, wherein the first TDD configuration is one of a predetermined set of TDD configurations,

transmit configuration information including information associated with a first subframe, via a higher layer signaling, and

transmit, on a physical downlink control channel (PDCCH), control information in the first subframe identified based on the configuration information,

wherein the control information is used to identify a second TDD configuration, wherein the second TDD configuration is one of a subset of the predetermined set of TDD configurations, and

wherein the first TDD configuration and the second TDD configuration are associated with a type of each subframe in a radio frame.

14. The base station of claim 13, wherein the controller is further configured to transmit or receive data based on the identified second TDD configuration after a second subframe.

15. The base station of claim 13, wherein the controller is further configured to, if the control information is not transmitted on the PDCCH, identify the second TDD configuration as being identical to the first TDD configuration.

16. The base station of claim 13, wherein the controller is further configured to transmit the control information in a radio resource control (RRC) message.