SYSTEM AND METHOD OF CONNECTED MODE DISCONTINUOUS OPERATION IN BEAMFORMED SYSTEM

• US 20170251518A1
• Filed: 02/24/2017
• Published: 08/31/2017
• Est. Priority Date: 02/26/2016
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: AGIWAL, Anil, JUNG, Byounghoon, KWON, Sangwook, CHANG, Youngbin
• Granted Patent: US 10,224,994 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04B 7/0619 using feedback from receiving side feedback signaling for adaptive modulation/coding H04L1/0001
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A communication method and a system for converging a fifth generation (5G) communication system for supporting higher data rates beyond a fourth generation (4G) system with a technology for internet of things (IoT) are provided. A terminal and a base station and communication method of the same are provided. The method includes receiving, from a base station (BS), configuration information of discontinuous reception (DRX), performing beam measurement before a start of an on duration of the DRX, transmitting, to the BS, beam feedback information according to the beam measurement result, and performing a certain operation after transmitting the beam feedback information

Claims

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

receiving, from a base station, configuration information of discontinuous reception (DRX);

performing beam measurement before a start of an on duration of the DRX;

transmitting, to the base station, beam feedback information according to the beam measurement result; and

performing a predetermined operation after transmitting the beam feedback information.

2. The method of claim 1, wherein the performing of the predetermined operation comprises:

monitoring downlink data before the start of the on duration of the DRX.

3. The method of claim 1, wherein the performing of the predetermined operation comprises:

determining whether a message indicating the base station has downlink data to transmit is received from the base station; and

if the message is received from the base station, monitoring downlink data before the start of the on duration of the DRX.

4. The method of claim 3, wherein the performing of the predetermined operation further comprises:

if the message is not received from the base station, skipping the monitoring of the downlink data during the on duration of the DRX.

5. The method of claim 3, wherein the performing of the predetermined operation further comprises:

if the message is not received from the base station, monitoring downlink data from the start of the on duration of the DRX.

6. The method of claim 1, wherein the performing of the predetermined operation comprises:

if a message indicating the base station has downlink data to transmit is received from the base station, monitoring downlink data from the start of the on duration of the DRX; and

if the message is not received from the base station, skipping the monitoring of the downlink data during the on duration of the DRX.

7. A communication method of a base station, the communication method comprising:

transmitting, to a terminal, configuration information of discontinuous reception (DRX);

receiving, from the terminal, beam feedback information according to beam measurement before a start of an on duration of the DRX; and

if the base station has downlink data to transmit, transmitting, to the terminal, a message indicating that the base station has downlink data to transmit.

8. The method of claim 7, further comprising:

transmitting, to the terminal, the downlink data before the start of the on duration of the DRX and after receiving the beam feedback information.

9. A terminal comprising:

a transceiver configured to receive and transmit a signal; and

a controller configured to;

receive, from a base station, configuration information of discontinuous reception (DRX),

perform beam measurement before a start of an on duration of the DRX,

transmit, to the base station, beam feedback information according to the beam measurement result, and

perform a predetermined operation after transmitting the beam feedback information.

10. The terminal of claim 9, wherein the controller is further configured to:

monitor downlink data before the start of the on duration of the DRX.

11. The terminal of claim 9, wherein the controller is further configured to:

if a message indicating the base station has downlink data to transmit is received from the base station, monitor downlink data before the start of the on duration of the DRX, and

if the message is not received from the base station, skip the monitoring of the downlink data during the on duration of the DRX.

12. The terminal of claim 9, wherein the controller is further configured to:

if a message indicating the base station has downlink data to transmit is received from the base station, monitor downlink data before the start of the on duration of the DRX, and

if the message is not received from the base station, monitor the downlink data from the start of the on duration of the DRX.

13. The terminal of claim 9, wherein the controller is further configured to:

if a message indicating the base station has downlink data to transmit is received from the base station, monitor downlink data from the start of the on duration of the DRX; and

if the message is not received from the base station, skip the monitoring of the downlink data during the on duration of the DRX.

14. A base station comprising:

a transceiver configured to receive and transmit a signal; and

a controller configured to;

transmit, to a terminal, configuration information of discontinuous reception (DRX),

receive, from the terminal, beam feedback information according to beam measurement before a start of an on duration of the DRX, and

if the base station has downlink data to transmit, transmit, to the terminal, a message indicating that the base station has downlink data to transmit.

15. The base station of claim 14, wherein the controller is further configured to:

transmit, to the terminal, the downlink data before the start of the on duration of the DRX and after receiving the beam feedback information.