Secondary cell activation delay indication

• US 9,820,286 B2
• Filed: 11/13/2013
• Issued: 11/14/2017
• Est. Priority Date: 11/13/2012
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Technologies Oy (Nokia Corporation)
• Inventors: Dalsgaard, Lars, Koskinen, Jussi-Pekka, Koskela, Jarkko
• Primary Examiner(s): Siddiqui, Kashif
• Application Number:
  US14/435,792
• Publication Number:
  US 20150257163A1
• Time in Patent Office: 1,462 Days
• Field of Search: 455450, 4554522, 455451, 4554521
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0085 when channel conditions change
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 8/02 Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Methods and apparatus, including computer program products, are provided for secondary cells configured for carrier aggregation. In one aspect there is provided a method. The method may include receiving, at a user equipment, an indication from a network to activate a secondary cell configured for carrier aggregation, the indication comprising at least one of a secondary cell activation command or a secondary cell configuration; and sending, by the user equipment, at least one of a secondary cell activation time or a secondary cell activation delay to the network. Related apparatus, systems, methods, and articles are also described.

Claims

1. An apparatus comprising:

at least one processor; and

at least one memory including computer program code for one or more programs, the at least one processor, the at least one memory, and the computer program code configured to cause the apparatus to at least;

receive a channel measurement report from a user equipment;

determine a receipt of the channel measurement report to indicate a time that a secondary cell is active at the user equipment and a readiness at the user equipment to access the secondary cell,

wherein the readiness comprises a delay from the time the secondary cell is active to a time the secondary cell is operational, and

wherein the delay is of fixed value of 24 terminal timing intervals (TTIs) for the user equipment.

2. The apparatus as recited in claim 1, wherein the apparatus comprises at least one of a base station and a network node of a wireless access network.

3. The apparatus as recited in claim 1, wherein the channel measurement report comprises a channel quality indicator report.

14. The method as recited in claim 3, wherein the channel measurement report comprises a channel quality indicator report.

4. A method comprising:

receiving a channel measurement report from a user equipment; and

determining a receipt of the channel measurement report to indicate a time that a secondary cell is active at the user equipment and a readiness at the user equipment to access the secondary cell,

wherein the readiness comprises a delay from the time the secondary cell is active to a time the secondary cell is operational, and

wherein the delay is of fixed value of 24 terminal timing intervals (TTIs) for the user equipment.

5. The method as recited in claim 4, wherein the method is performed by at least one of a base station and a network node of a wireless access network.

6. The method as recited in claim 4, wherein the channel measurement report comprises a channel quality indicator report.

7. A computer program product comprising at least one non-transitory computer-readable storage medium having executable computer-readable program code portions stored therein, the computer-readable program code portions comprising:

a first program code portion configured to receive a channel measurement report from a user equipment; and

a second program code portion configured to determine a receipt of the channel measurement report to indicate a time that a secondary cell is active at the user equipment and a readiness at the user equipment to access the secondary cell,

wherein the readiness comprises a delay from the time the secondary cell is active to a time the secondary cell is operational, and

wherein the delay is of fixed value of 24 terminal timing intervals (TTIs) for the user equipment.

8. The computer program product as recited in claim 7, wherein the program code portion is performed by at least one of a base station and a network node of a wireless access network.

9. The computer program product as recited in claim 7, wherein the channel measurement report comprises a channel quality indicator report.

10. An apparatus, comprising:

at least one processor; and

at least one memory including computer program code for one or more programs, the at least one processor, the at least one memory, and the computer program code configured to cause the apparatus to at least;

transmit a channel measurement report for a secondary cell;

determine a time with the transmission of the channel measurement report that a secondary cell is active at the apparatus and a readiness for the apparatus to access the secondary cell,

wherein the readiness comprises a delay from the time the secondary cell is active to a time the secondary cell is operational, and

wherein the delay is of fixed value of 24 terminal timing intervals (TTIs).

11. The apparatus as recited in claim 10, wherein the apparatus comprises a user equipment.

12. The apparatus as recited in claim 10, wherein the channel measurement report comprises a channel quality indicator report.

13. A method, comprising:

transmitting, by a user equipment, a channel measurement report for a secondary cell;

determining a time with the transmission of the channel measurement report that a secondary cell is active at the user equipment and a readiness for the user equipment to access the secondary cell,

wherein the readiness comprises a delay from the time the secondary cell is active to a time the secondary cell is operational, and

wherein the delay is of fixed value of 24 terminal timing intervals (TTIs).

15. A computer program product comprising at least one non-transitory computer-readable storage medium having executable computer-readable program code portions stored therein, the computer-readable program code portions comprising:

a first program code portion configured to transmit a channel measurement report for a secondary cell;

a second program code portion configured to determine a time with the transmission of the channel measurement report that a secondary cell is active at a user equipment and a readiness for the user equipment to access the secondary cell,

wherein the readiness comprises a delay from the time the secondary cell is active to a time the secondary cell is operational, and

wherein the delay is of fixed value of 24 terminal timing intervals (TTIs).