Secondary Cell Activation

• US 20150223052A1
• Filed: 10/01/2012
• Published: 08/06/2015
• Est. Priority Date: 10/01/2012
• Status: Abandoned Application

• Current Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Original Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Inventors: Rosa, Claudio, Pedersen, Klaus Ingemann
• Application Number:
  US14/424,614
• Publication Number:
  US 20150223052A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 8/22 Processing or transfer of terminal data, e.g. status or physical capabilities

Abstract

A technique including: detecting at a communication device via a primary cell an identification of a plurality of cells operated at respective sites on the same radio resources as potential secondary cells for the communication device; subsequently detecting at the communication device via the primary cell an indication to perform one or more operations for one of the plurality of cells; and in response to the indication, automatically determining not to also perform the one or more operations for all other cells of the plurality of cells; wherein the one or more operations relate to the use of the one cell as a secondary cell for the communication device.

Claims

1. A method, comprising:

detecting at a communication device via a primary cell an identification of a plurality of cells operated at respective sites on the same radio resources as potential secondary cells for said communication device;

subsequently detecting at said communication device via said primary cell an indication to perform one or more operations for one of said plurality of cells; and

in response to said indication, automatically determining not to also perform said one or more operations for all other cells of said plurality of cells;

wherein said one or more operations relate to the use of said one cell as a secondary cell for said communication device.

2. A method according to claim 1, wherein said indication comprises a control element specifying a cell index for said one of said plurality of cells.

3. A method according to claim 1, wherein said control element includes a 7-bit or 8-bit field for specifying said cell index.

4. A method according to claim 2 or claim 3, wherein said control element is part of a protocol data unit comprising a sub-header including a field that indicates that said control element specifies a cell index for one cell.

5. A method, comprising:

identifying to a communication device via a primary cell a plurality of cells as potential secondary cells for said communication device, wherein said plurality of cells are operated at respective sites on the same radio resources; and

subsequently transmitting to said communication device via said primary cell a control element specifying a cell index identifying one of said plurality of cells as a cell for which to selectively perform at said communication device one or more operations related to the use of said cell as a secondary cell.

6. A method according to claim 5, wherein said control element includes a 7-bit or 8-bit field for specifying said cell index.

7. A method according to claim 6, wherein said control element is part of a protocol data unit comprising a sub-header including a field that indicates that said control element specifies a cell index for one cell.

8. An apparatus comprising:

a processor and memory including computer program code, wherein the memory and computer program code are configured to, with the processor, cause the apparatus to;

detect at a communication device via a primary cell an identification of a plurality of cells operated at respective sites on the same radio resources as potential secondary cells for said communication device;

subsequently detecting at said communication device via said primary cell an indication to perform one or more operations for one of said plurality of cells; and

in response to said indication, automatically determine not to also perform said one or more operations for all other cells of said plurality of cells;

wherein said one or more operations relate to the use of said one cell as a secondary cell for said communication device.

9. An apparatus according to claim 8, wherein said indication comprises a control element specifying a cell index for said one of said plurality of cells.

10. An apparatus according to claim 8, wherein said control element includes a 7-bit or 8-bit field for specifying said cell index.

11. An apparatus according to claim 9, wherein said control element is part of a protocol data unit comprising a sub-header including a field that indicates that said control element specifies a cell index for one cell.

12. An apparatus comprising:

a processor and memory including computer program code, wherein the memory and computer program code are configured to, with the processor, cause the apparatus to;

identify to a communication device via a primary cell a plurality of cells as potential secondary cells for said communication device, wherein said plurality of cells are operated at respective sites on the same radio resources; and

subsequently transmit to said communication device via said primary cell a control element specifying a cell index identifying one of said plurality of cells as a cell for which to selectively perform at said communication device one or more operations related to the use of said cell as a secondary cell.

13. An apparatus according to claim 12, wherein said control element includes a 7-bit or 8-bit field for specifying said cell index.

14. An apparatus according to claim 12, wherein said control element is part of a protocol data unit comprising a sub-header including a field that indicates that said control element specifies a cell index for one cell.

15. A computer program product comprising program code means which when loaded into a computer controls the computer to:

detect at a communication device via a primary cell an identification of a plurality of cells operated at respective sites on the same radio resources as potential secondary cells for said communication device;

subsequently detecting at said communication device via said primary cell an indication to perform one or more operations for one of said plurality of cells; and

in response to said indication, automatically determine not to also perform said one or more operations for all other cells of said plurality of cells;

wherein said one or more operations relate to the use of said one cell as a secondary cell for said communication device.

16. A computer program product comprising program code means which when loaded into a computer controls the computer to:

identify to a communication device via a primary cell a plurality of cells as potential secondary cells for said communication device, wherein said plurality of cells are operated at respective sites on the same radio resources; and

subsequently transmit to said communication device via said primary cell a control element specifying a cell index identifying one of said plurality of cells as a cell for which to selectively perform at said communication device one or more operations related to the use of said cell as a secondary cell.