Multicarrier techniques for wireless systems

• US 9,497,762 B2
• Filed: 12/05/2012
• Issued: 11/15/2016
• Est. Priority Date: 05/14/2007
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Etemad, Kamran
• Primary Examiner(s): Gidado, Rasheed
• Application Number:
  US13/706,275
• Publication Number:
  US 20130107766A1
• Time in Patent Office: 1,441 Days
• Field of Search: 370/329, 370/280, 370/252, 370/342, 455/423, 455/522
• US Class Current: 1/1
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• 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: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/0087 when data requirements change
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA

Abstract

Multicarrier techniques for wireless communications system are described. An apparatus may comprise a carrier management module to define a primary carrier for use by a multicarrier communications system to communicate control information, and a secondary carrier for use by the multicarrier communications system to communicate media information, with the secondary carrier having a communication parameter and technology that is potentially different from the primary carrier. Other embodiments are described and claimed.

Claims

1. A wireless communication device, comprising:

a processor to perform carrier aggregation of multiple wireless carriers to provide variable bandwidth for a multicarrier wireless communications system comprising an orthogonal frequency division multiple access (OFDMA) system, each of the aggregated wireless carriers to utilize a different portion of radio frequency spectrum, with a number of the aggregated wireless carriers to increase or decrease based on an amount of bandwidth needed by a client device, the aggregated wireless carriers to include a primary wireless carrier and a secondary wireless carrier, the secondary wireless carrier to differ from the primary wireless carrier with respect to one or more communication parameters comprising at least one of amount of channel bandwidth and duplexing mode; and

a wireless transceiver to communicate information over the aggregated wireless carriers using orthogonal frequency division multiplexing symbols.

2. The wireless communication device of claim 1, each of the aggregated wireless carriers arranged to communicate control information, media information, or control information and media information.

3. The wireless communication device of claim 1, the primary wireless carrier to utilize a first portion of the radio frequency spectrum for use by the multicarrier wireless communications system, and the secondary wireless carrier to utilize a second portion of the radio frequency spectrum for use by the multicarrier wireless communications system, wherein the first and second portions comprise contiguous radio frequency spectrums.

4. The wireless communication device of claim 1, the primary wireless carrier to utilize a first portion of the radio frequency spectrum for use by the multicarrier wireless communications system, and the secondary wireless carrier to utilize a second portion of the radio frequency spectrum for use by the multicarrier wireless communications system, wherein the first and second portions comprise non-contiguous radio frequency spectrums.

5. The wireless communication device of claim 1, the primary wireless carrier to utilize a time division duplex (TDD) mode.

6. The wireless communication device of claim 1, the primary wireless carrier to communicate hybrid automatic repeat request (HARQ) signals.

7. The wireless communication device of claim 1, the primary wireless carrier to communicate uplink information.

8. The wireless communication device of claim 1, the processor to aggregate another secondary wireless carrier with the primary wireless carrier and the secondary wireless carrier to further increase effective bandwidth for the multicarrier wireless communications system.

9. The wireless communication device of claim 1, the wireless transceiver to communicate control information over a first wireless carrier among the aggregated wireless carriers and media information over a second wireless carrier among the aggregated wireless carriers.

10. A system, comprising:

a node to increase effective bandwidth for a multicarrier wireless communications system by performing aggregation across multiple wireless carriers to provide variable bandwidth for the multicarrier wireless communications system, the aggregated wireless carriers to include a primary wireless carrier and multiple secondary wireless carriers, the node comprising;

an antenna array;

a radio to connect to the antenna array; and

a processor to connect to the radio, the processor to aggregate the multiple wireless carriers, the primary wireless carrier arranged to communicate primarily control information and limited media information, the multiple secondary wireless carriers arranged to communicate primarily media information and limited control information, at least one aggregated wireless carrier to differ from at least one other aggregated wireless carrier with respect to one or more communication parameters comprising at least one of amount of channel bandwidth and duplexing mode.

11. The system of claim 10, the primary wireless carrier and the secondary wireless carriers to utilize different portions of a radio frequency spectrum of the multicarrier wireless communications system, wherein the different portions comprise contiguous radio frequency spectrums.

12. The system of claim 10, the primary wireless carrier and the secondary wireless carriers to utilize different portions of a radio frequency spectrum of the multicarrier wireless communications system, wherein the different portions comprise non-contiguous radio frequency spectrums.

13. The system of claim 10, the primary wireless carrier to utilize a time division duplex (TDD) mode.

14. The system of claim 10, the processor to aggregate another secondary wireless carrier with the primary wireless carrier and the multiple secondary wireless carriers to further increase effective bandwidth for the multicarrier wireless communications system.

15. The system of claim 10, the multicarrier wireless communications system comprising an orthogonal frequency division multiple access (OFDMA) system.

16. A wireless client device, comprising:

an antenna array; and

a radio to connect to the antenna array, the radio to receive primarily control information and limited media information over a primary wireless carrier defined with a first portion of a radio frequency spectrum for use by a multicarrier wireless communications system, and receive primarily media information and limited control information over a secondary wireless carrier defined with a second portion of the radio frequency spectrum for use by the multicarrier wireless communications system, wherein the primary wireless carrier and the secondary wireless carrier are aggregated to increase effective bandwidth for the multicarrier wireless communications system, the secondary wireless carrier to differ from the primary wireless carrier with respect to one or more communication parameters comprising at least one of amount of channel bandwidth and duplexing mode.

17. The wireless client device of claim 16, wherein the first portion of the radio frequency spectrum and second portion of the radio frequency spectrum comprise contiguous radio frequency spectrums.

18. The wireless client device of claim 16, wherein the first portion of the radio frequency spectrum and second portion of the radio frequency spectrum comprise non-contiguous radio frequency spectrums.