Aggregation for a new carrier type

• US 9,065,600 B2
• Filed: 03/14/2012
• Issued: 06/23/2015
• Est. Priority Date: 03/14/2012
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Technologies Oy (Nokia Corporation)
• Inventors: Miao, Honglei, Rinne, Mika P.
• Primary Examiner(s): Cho, Un C
• Assistant Examiner(s): Lou, Peian
• Application Number:
  US13/420,085
• Publication Number:
  US 20130242880A1
• Time in Patent Office: 1,196 Days
• Field of Search: 370/241, 370/312, 370322-326, 370/328, 370/329, 370341-345, 370/348, 370/350, 375/260, 455/450, 455/425, 455/426.1, 455/426.2
• US Class Current: 1/1
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The specification and drawings present a new method, apparatus and software related product (e.g., a computer readable memory) for aggregation of a new carrier type by configuring PCC (for PCell) and SCC (for SCell) bandwidths to be overlapped or at least partially overlapped and by control signaling, e.g., using PDCCH and/or E-PDCCH, for scheduling of data resources on SCC thus simultaneously serving legacy and non-legacy UEs, e.g., in LTE-A systems.

Claims

1. A method comprising:

configuring by at least one network element a first bandwidth for a primary component carrier and a second bandwidth for a secondary component carrier, the first and second bandwidths being at least partially overlapped and the second bandwidth being larger than the first bandwidth; and

selecting between at least one of a first signaling channel within the first bandwidth and a second signaling channel within the second bandwidth for scheduling data resources on the secondary component carrier;

wherein a first set of physical resource blocks for the primary component carrier is a subset of a second set of physical resource blocks for the secondary component carrier that are separated by an offset proportional to a difference in carrier center frequency, and proportional at least to one of the first bandwidth or the second bandwidth, to permit an allocation of at least one of a set of localized and distributed physical resource blocks by a single allocation entity; and

wherein indexing is different for physical resource blocks for the primary component carrier and for the secondary component carrier in an overlapping region of the first and second bandwidths.

2. The method of claim 1, wherein communications on the primary component carrier and the secondary component carrier are synchronized.

3. The method of claim 1, wherein the scheduling data resources on the secondary component carrier does not require signaling common information which is used for scheduling data resources on the primary component carrier.

4. The method of claim 3, wherein the common information comprises one or more of:

a primary synchronization sequence, a secondary synchronization sequence, a physical broadcast channel, system information and a common reference signal.

5. The method of claim 1, further comprising:

further configuring the data resources on the secondary component carrier using signaling on the selected first or second signaling channel.

6. The method of claim 1, wherein the first signaling channel is a physical downlink control channel, and the second signaling channel is an enhanced physical downlink control channel.

7. The method of claim 1, wherein the at least one network element is a macro or pico eNB.

8. The method of claim 1, wherein carrier center frequencies of the first and second bandwidths are equal.

9. The method of claim 1, wherein carrier center frequencies of the first and second bandwidths are not equal.

10. The method of claim 1, wherein indexing for physical resource blocks for the primary component carrier and for the secondary component carrier are independent at least in the overlapping region of the first and second bandwidths.

11. The method of claim 1, wherein the allocated data resources for the secondary component carrier are distributed on the second bandwidth including resources on the overlapped first bandwidth.

12. The method of claim 1, wherein the configuring is based on information received from at least one network entity.

13. The method of claim 12, wherein the single allocation entity is a centralized or distributed self optimizing network.

14. The method of claim 12, wherein the configuring the first bandwidth and the second bandwidth is based on coordinating inter-cell interference.

15. A method comprising:

receiving by a user equipment from at least one network element information comprising data resources on a secondary component carrier using signaling on at least one of first and second signaling channels, wherein a primary component carrier has a first bandwidth and the secondary component carrier has a second bandwidth, the first and second bandwidths being at least partially overlapped and the second bandwidth being larger than the first bandwidth;

synchronizing communication by the user equipment with one of;

a primary cell on the primary component carrier and a secondary cell on the secondary component carrier to use the established synchronization with one of the primary and secondary cells for communicating with both the primary and secondary cells; and

adopting by the user equipment a signaling format for communication using the data resources on the secondary component carrier;

wherein a first set of physical resource blocks for the primary component carrier is a subset of a second set of physical resource blocks for the secondary component carrier that are separated by an offset proportional to a difference in carrier center frequency, and proportional at least to one of the first bandwidth or the second bandwidth, to permit an allocation of at least one of a set of localized and distributed physical resource blocks by a single allocation entity; and

wherein indexing is different for physical resource blocks for the primary component carrier and for the secondary component carrier in an overlapping region of the first and second bandwidths.

16. The method of claim 15, wherein the adopted signaling format is different from a primary signaling format used on the primary component carrier at least in one of their time and frequency and spatial multiplexing structure.

17. The method of claim 15, wherein carrier center frequencies of the first and second bandwidths are not equal.

18. An apparatus comprising:

at least one processor and a memory storing a set of computer instructions, in which the processor and the memory storing the computer instructions are configured to cause the apparatus to;

configure a first bandwidth for a primary component carrier and a second bandwidth for a secondary component carrier, the first and second bandwidths being at least partially overlapped and the second bandwidth being larger than the first bandwidth; and

select between at least one of a first signaling channel within the first bandwidth and a second signaling channel within the second bandwidth for scheduling data resources on the secondary component carrier;

wherein a first set of physical resource blocks for the primary component carrier is a subset of a second set of physical resource blocks for the secondary component carrier that are separated by an offset proportional to a difference in carrier center frequency, and proportional at least to one of the first bandwidth or the second bandwidth, to permit an allocation of at least one of a set of localized and distributed physical resource blocks by a single allocation entity; and

wherein indexing is different for physical resource blocks for the primary component carrier and for the secondary component carrier in an overlapping region of the first and second bandwidths.

19. An apparatus comprising:

at least one processor and a memory storing a set of computer instructions, in which the processor and the memory storing the computer instructions are configured to cause the apparatus to;

receive from at least one network element information comprising data resources on a secondary component carrier using signaling on at least one of first and second signaling channels, wherein a primary component carrier has a first bandwidth and the secondary component carrier has a second bandwidth, the first and second bandwidths being at least partially overlapped and the second bandwidth being larger than the first bandwidth;

synchronize communication by a user equipment with one of;

a primary cell on the primary component carrier and a secondary cell on the secondary component carrier to use the established synchronization with one of the primary and secondary cells for communicating with both the primary and secondary cells; and

adopt by the user equipment a signaling format for communication using the data resources on the secondary component carrier;

wherein a first set of physical resource blocks for the primary component carrier is a subset of a second set of physical resource blocks for the secondary component carrier that are separated by an offset proportional to a difference in carrier center frequency, and proportional at least to one of the first bandwidth or the second bandwidth, to permit an allocation of at least one of a set of localized and distributed physical resource blocks by a single allocation entity; and

wherein indexing is different for physical resource blocks for the primary component carrier and for the secondary component carrier in an overlapping region of the first and second bandwidths.