COMMUNICATION METHOD ON BASIS OF SEMI-PERSISTENT SCHEDULLING IN WIRELESS COMMUNICATION SYSTEM

• US 20180184439A1
• Filed: 06/22/2016
• Published: 06/28/2018
• Est. Priority Date: 06/22/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Nam-Jeong, Xue, Peng, Jeong, Cheol
• Granted Patent: US 10,531,475 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

The present invention relates to a 5G or pre-5G communication system for supporting higher data transmission rates than 4G communication systems such as LTE. The present invention provides a communication method of a terminal which communicates with a base station in a wireless communication system, the communication method comprising the motions of: transmitting, to the base station, a first random access request message comprising identification information of the terminal; receiving, as a response to the first random access request message, a response message comprising semi-persistent scheduling (SPS) terminal identity (ID) and uplink (UL) resource allocation information; and periodically transmitting, using the SPS terminal ID, UL data from a resource that is indicated by the UL resource allocation information, wherein the identification information of the terminal is information that indicates that the terminal will be appointed as an SPS terminal.

Claims

1. A method for communicating by a user equipment (UE) with a base station in a wireless communication system, the method comprising:

transmitting a first random access request message including identification information of the UE to the base station;

receiving a response message including a semi-permanent scheduling (SPS) UE identity (ID) and uplink (UL) resource allocation information in response to the first random access request message; and

transmitting UL data periodically in a resource indicated by the UL resource allocation information using the SPS UE ID, wherein the identification information of the UE comprises information indicating that the UE is to be designated as a SPS UE.

2. The method of claim 1, wherein the identification information of the UE included in the first random access request message comprises a random number selected from a random number group for the SPS UE.

4. The method of claim 1, wherein the identification information of the UE included in the first random access request message comprises a random sequence selected from a random sequence group for the SPS UE.

5. The method of claim 1, wherein the response message comprises a random access response message, and wherein the SPS UE ID comprises a SPS-cell-radio network temporary identity (SPS-C-RNTI).

6. The method of claim 1, wherein the response message comprises a contention resolution message, and wherein the SPS UE ID comprises an SPS-C-RNTI.

7. The method of claim 1, further comprising:

transmitting a second random access request message including the SPS UE ID to the base station;

receiving a resource reconfiguration message including the SPS UE ID; and

transmitting UL data periodically using a resource indicated by the resource reconfiguration message.

8. The method of claim 7, further comprising:

transmitting a third random access request message including the identification information of the UE to the base station;

receiving a response message including a cell-radio network temporary identity (C-RNTI) and UL resource allocation information in response to the third random access request message; and

transmitting UL data in a resource indicated by the UL resource allocation information using the C-RNTI.

3. (canceled)

9. A method for communicating by a base station with a user equipment (UE) in a wireless communication system, the method comprising:

receiving a first random access request message including identification information of the UE;

transmitting a response message including a semi-permanent scheduling (SPS) UE identity (ID) and uplink (UL) resource allocation information in response to the first random access request message; and

receiving UL data periodically in a resource indicated by the UL resource allocation information using the SPS UE ID, wherein the identification information of the UE comprises information indicating that the UE is to be designated as a SPS UE.

10. The method of claim 9, wherein the identification information of the UE included in the first random access request message comprises a random number selected from a random number group for the SPS UE.

12. The method of claim 9, wherein the identification information of the UE included in the first random access request message comprises a random sequence selected from a random sequence group for the SPS UE.

11. (canceled)

13. A user equipment (UE) communicating with a base station in a wireless communication system, the UE comprising:

a controller configured to control a transceiver; and

the transceiver configured to;

transmit a first random access request message including identification information of the UE to the base station;

receive a response message including a semi-permanent scheduling (SPS) UE identity (ID) and uplink (UL) resource allocation information in response to the first random access request message; and

transmit UL data periodically in a resource indicated by the UL resource allocation information using the SPS UE ID,

wherein the identification information of the UE comprises information indicating that the UE is to be designated as a SPS UE.

16. The UE of claim 13, wherein the identification information of the UE included in the first random access request message comprises a random number selected from a random number group for the SPS UE.

17. The UE of claim 13, wherein the identification information of the UE included in the first random access request message comprises a random sequence selected from a random sequence group for the SPS UE.

18. The UE of claim 13, wherein the response message comprises a random access response message, and wherein the SPS UE ID comprises a SPS-cell-radio network temporary identity (SPS-C-RNTI).

19. The UE of claim 13, wherein the response message comprises a contention resolution message, and wherein the SPS UE ID comprises a SPS-cell-radio network temporary identity (SPS-C-RNTI).

20. The UE of claim 13, wherein the transceiver is further configured to:

transmit a second random access request message including the SPS UE ID to the base station;

receive a resource reconfiguration message including the SPS UE ID; and

transmit UL data periodically using a resource indicated by the resource reconfiguration message.

21. The UE of claim 20 wherein the transceiver is further configured to:

transmit a third random access request message including the identification information of the UE to the base station;

receive a response message including a cell-radio network temporary identity (C-RNTI) and UL resource allocation information in response to the third random access request message; and

transmit UL data in a resource indicated by the UL resource allocation information using the C-RNTI.

14. (canceled)

15. A base station communicating with a user equipment (UE) in a wireless communication system, the base station comprising:

a controller configured to control a transceiver; and

the transceiver configured to;

receive a first random access request message including identification information of the UE;

transmit a response message including a semi-permanent scheduling (SPS) UE identity (ID) and uplink (UL) resource allocation information in response to the first random access request message; and

receive UL data periodically in a resource indicated by the UL resource allocation information using the SPS UE ID;

wherein the identification information of the UE comprises information indicating that the UE is to be designated as a SPS UE.

22. The base station of claim 15, wherein the identification information of the UE included in the first random access request message comprises a random number selected from a random number group for the SPS UE.

23. The base station of claim 15, wherein the identification information of the UE included in the first random access request message comprises a random sequence selected from a random sequence group for the SPS UE.