System, method and base station for allocating resources in a plurality of subframes

• US 10,123,320 B2
• Filed: 07/14/2017
• Issued: 11/06/2018
• Est. Priority Date: 05/21/2012
• Status: Active Grant

• Current Assignee: Sony Europe BV (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Morioka, Yuichi
• Primary Examiner(s): Huynh, Dung B
• Application Number:
  US15/650,366
• Publication Number:
  US 20170318567A1
• Time in Patent Office: 480 Days
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/51 based on terminal or device properties

Abstract

A method operating a telecommunications system including a base station and plural terminal devices arranged to communicate over a radio interface supporting a downlink shared channel conveying user-plane data from the base station to the terminal devices and a downlink control channel conveying control-plane data from the base station to the terminal devices. The control-plane data can convey information on physical resource allocations for the downlink shared channel for respective of the terminal devices. The radio interface uses a radio frame structure including plural subframes. Each subframe includes a control region supporting the downlink control channel and a user-plane region supporting the downlink shared channel. The method uses the control region of a first radio subframe to convey an indication of a physical resource allocation for a first terminal device on the shared downlink channel in the user-plane region of a second radio subframe subsequent to the first radio subframe.

Claims

1. A method of operating a base station, the method comprising:

transmitting in a control region of a first radio subframe an indication of a physical resource allocation for a first terminal device on a shared downlink channel in a user-plane region of a second radio subframe;

subsequently transmitting user-plane data on the physical resource allocation for the first terminal device on the shared downlink channel in the user-plane region of the second radio subframe with a delay after transmitting the first radio subframe;

recognizing, by the base station based on a defined class type shared during a camp on procedure, a class type of the first terminal device as a machine-type, the class type including at least a smartphone-type and the machine-type, the machine-type being semi-autonomous or autonomous wireless communication type terminal device having bandwidth capabilities lower than a smartphone-type device; and

allocating, by the base station, the delay that is increased based on the recognized class type.

2. The method of claim 1, further comprising:

transmitting the second radio subframe after the first radio subframe.

3. The method of claim 2, further comprising:

transmitting the second radio subframe after a duration which corresponds with a predefined number of subframes.

4. The method of claim 1, further comprising:

transmitting the second radio subframe a selectable interval after the first radio subframe; and

transmitting the physical resource allocation for the first terminal device in association with an indication of a selected interval.

5. The method of claim 4, further comprising:

transmitting the physical resource allocation for the first terminal device in association with the indication of the selected interval indicating a number of subframes.

6. The method of claim 1, further comprising:

transmitting a physical resource allocation for a second terminal device on the shared downlink channel in the user-plane region of the first radio subframe by using the control region of the first radio subframe.

7. The method of claim 6, wherein the first terminal device is a terminal device of a first type, the method further comprising:

transmitting the physical resource allocation for the second terminal device, which is a terminal device of a second type that is different from the first type, on the shared downlink channel in the user-plane region of the first radio subframe by using the control region of the first radio subframe.

8. The method of claim 6, further comprising:

transmitting the physical resource allocation for the first terminal device by using a first format for conveying control-plane data; and

transmitting the physical resource allocation for the second terminal device by using a second format for conveying control-plane data, the second format being different from the first format.

9. The method of claim 6, further comprising:

transmitting the physical resource allocation for the first terminal device by using a first format for conveying control-plane data; and

the

transmitting physical resource allocation for the second terminal device by using the first format for conveying control-plane data.

10. The method of claim 1, further comprising:

determining an estimate of extent to which available resources in the control region of the first radio subframe and/or the second radio subframe will be used to convey physical resource allocations for terminal devices before transmitting the control region of the first radio subframe; and

based on the estimate, determining to use the first radio subframe to convey an indication of a physical resource allocation in the second radio subframe.

11. A base station comprising:

circuitry configured to;

transmit in a control region of a first radio subframe an indication of a physical resource allocation for a first terminal device on a shared downlink channel in a user-plane region of a second radio subframe;

subsequently transmit user-plane data on the physical resource allocation for the first terminal device on the shared downlink channel in the user-plane region of the second radio subframe with a delay after transmission of the first radio subframe;

recognize, based on a defined class type shared during a camp on procedure, a class type of the first terminal device as a machine-type, the class type including at least a smartphone-type and the machine-type, the machine-type being semi-autonomous or autonomous wireless communication type terminal device having bandwidth capabilities lower than a smartphone-type device; and

allocate the delay that is increased based on the recognized class type.

12. The base station of claim 11, wherein the circuitry is further configured to transmit the second radio subframe after the first radio subframe.

13. The base station of claim 12, wherein the circuitry is further configured to transmit the second radio subframe after a duration which corresponds with a predefined number of subframes.

14. The base station of claim 11, wherein the circuitry is further configured to:

transmit the second radio subframe a selectable interval after the first radio subframe; and

transmit the physical resource allocation for the first terminal device in association with an indication of a selected interval.

15. The base station of claim 14, wherein the circuitry is further configured to transmit the physical resource allocation for the first terminal device in association with the indication of the selected interval indicating a number of subframes.

16. The base station of claim 11, wherein the circuitry is further configured to transmit a physical resource allocation for a second terminal device on the shared downlink channel in the user-plane region of the first radio subframe by using the control region of the first radio subframe.

17. The base station of claim 16, wherein the first terminal device is a terminal device of a first type, the circuitry is further configured to transmit the physical resource allocation for the second terminal device, which is a terminal device of a second type that is different from the first type, on the shared downlink channel in the user-plane region of the first radio subframe by using the control region of the first radio subframe.

18. The base station of claim 16, wherein the circuitry is further configured to:

transmit the physical resource allocation for the first terminal device by using a first format for conveying control-plane data; and

transmit the physical resource allocation for the second terminal device by using a second format for conveying control-plane data, the second format being different from the first format.

19. The base station of claim 16, wherein the circuitry is further configured to:

transmit the physical resource allocation for the first terminal device by using a first format for conveying control-plane data; and

the

transmit physical resource allocation for the second terminal device by using the first format for conveying control-plane data.

20. The base station of claim 11, wherein the circuitry is further configured to:

determine an estimate of extent to which available resources in the control region of the first radio subframe and/or the second radio subframe will be used to convey physical resource allocations for terminal devices before transmitting the control region of the first radio subframe; and

based on the estimate, determine to use the first radio subframe to convey an indication of a physical resource allocation in the second radio subframe.