METHOD AND DEVICE FOR DATA DECODING BY TERMINAL IN WIRELESS COMMUNICATION SYSTEM

• US 20180317098A1
• Filed: 10/31/2016
• Published: 11/01/2018
• Est. Priority Date: 10/30/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: CHOI, Seunghoon, KIM, Donghan, OH, Jinyoung
• Granted Patent: US 10,477,414 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 1/713 using frequency hopping
• CPC Class Codes: H04B 2201/696 relating to Dowlink
• CPC Class Codes: H04L 25/0204 of multiple channels
• CPC Class Codes: H04L 25/023 with extension to other symbols
• CPC Class Codes: H04L 27/2602 Signal structure
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow
• CPC Class Codes: H04W 92/02 Inter-networking arrangements

Abstract

The present disclosure relates to a communication technique for converging IoT technology with 5G communication systems for supporting higher data transmission rates than 4G systems and to a system therefor. The present disclosure can be applied to intelligent services (e.g. smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security- and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. The method for data decoding by a terminal in a wireless communication system according to the present disclosure comprises the steps of: receiving subframes on the basis of a configuration; obtaining at least one channel phase value on the basis of available subframes, which are configured to transmit identical downlink data, among the received subframes; correcting the other channel phase value(s) with any one of said at least one obtained channel phase value as a reference value; and decoding the downlink data by means of the reference value and the corrected channel phase value(s).

Claims

1. A method of a terminal in a wireless communication system, the method comprising:

receiving subframes based on a configuration;

acquiring at least one channel phase value based on available subframes configured to carry the same downlink data among the received subframes;

compensating for, using one of the at least one channel phase value as a reference value, the remaining channel phase values; and

decoding the downlink data using the reference value and the compensated channel phase values.

2. The method of claim 1, wherein compensating for the remaining channel phase values comprises compensating for phase differences between the reference value and the remaining channel phase values.

3. The method of claim 1, further comprising receiving, before receiving the subframes, at least one of data-receivable narrowband information, available or unavailable subframe information, and information on a number of subframes configured to carry the same downlink data repetitively for the configuration.

4. The method of claim 1, wherein acquiring at least one channel phase value comprises acquiring the channel phase value per available subframe.

5. The method of claim 1, wherein acquiring at least one channel phase value comprises acquiring the channel phase value per subframe group, a subframe group comprising at least one contiguous available subframe among the available subframes.

6. The method of claim 5, wherein the received subframes comprise at least one unavailable subframe that is not configured to carry the same downlink data, and the subframe group is identified by the at least one unavailable subframe.

7. The method of claim 5, wherein compensating for the remaining channel phase values comprises at least one of:

compensating for phase differences between the reference value and the remaining channel phase values; and

compensating for phase differences between the reference value and the remaining channel phase values weighted according to a number of subframes per subframe group.

8. A terminal comprising:

a transceiver configured to transmit and receive signals; and

a controller configured to control to receive subframes based on a configuration, acquire at least one channel phase value based on available subframes configured to carry the same downlink data among the received subframes, compensate for, using one of the at least one channel phase value as a reference value, the remaining channel phase values, and decode the downlink data using the reference value and compensated channel phase values.

9. The terminal of claim 8, wherein the controller is configured to compensate for phase differences between the reference value and the remaining channel phase values.

10. The terminal of claim 8, wherein the controller is configured to receive, before receiving the subframes, at least one of data-receivable narrowband information, available or unavailable subframe information, and information on a number of subframes configured to carry the same downlink data repetitively.

11. The terminal of claim 8, wherein the controller is configured to acquire the channel phase value per available subframe.

12. The terminal of claim 8, wherein the controller is configured to acquire the channel phase value per subframe group, a subframe group comprising at least one contiguous available subframe among the available subframes.

13. The terminal of claim 12, wherein the received subframes comprise at least one unavailable subframe that is not configured to carry the same downlink data, and the subframe group is identified by the at least one unavailable subframe.

14. The terminal of claim 12, wherein the controller is configured to compensate for phase differences between the reference value and the remaining channel phase values or compensate for phase differences between the reference value and the remaining channel phase values weighted according to a number of subframes per subframe group, for the remaining channel phase value compensation.