Selecting frequency bands for transmitting data packets

Patent metadata

Field	Value
Publication number	US-9247541-B2
Application number	US-201113233861-A
Country	US
Kind code	B2
Filing date	Sep 15, 2011
Priority date	Sep 16, 2010
Publication date	Jan 26, 2016
Grant date	Jan 26, 2016

Abstract

A first combination of frequency bands is selected for transmitting a first data packet, and a second, different combination of frequency bands is selected for transmitting a second data packet. A data stream is divided into a first set of data and a second set of data. The first set of data is allocated to the first combination of frequency bands, and the second set of data is allocated to the second combination of frequency bands.

First claim

The invention claimed is:

1. A method comprising:
selecting a first combination of frequency bands for transmitting a first data packet, wherein said first combination of frequency bands is selected from a frequency spectrum that includes a first frequency segment and a second frequency segment, wherein the first frequency segment includes a first set of frequency bands, and the second frequency segment includes a second set of frequency bands, wherein said first combination of frequency bands includes a first set of frequencies, and a second set of frequencies different from the first set of frequencies;
parsing a data stream associated with the first data packet into a first set of data and a second set of data, said first set of data allocated to said first set of frequencies and said second set of data allocated to said second set of frequencies;
processing the first set of data in parallel with the second set of data, said parallel processing including spatially mapping said first set of data to a first set of streams using a first spatial mapper, and spatially mapping said second set of data to a second set of streams using a second spatial mapper, separate from the first spatial mapper;
processing each of said first set of streams separately to provide a first set of processed streams, and processing each of said second set of streams separately to provide a second set of processed streams;
summing a first stream of said first set of processed streams and a first stream of said second set of processed streams for transmission on a first antenna; and
summing a second stream of said first set of processed streams and a second stream of said second set of processed streams for transmission on a second antenna.

2. The method of claim 1 , wherein said first combination of frequency bands includes one or more frequency bands in the first set of frequency bands, and one or more frequency bands in the second set of frequency bands.

3. The method of claim 2 , wherein said first segment is not contiguous with said second segment.

4. The method of claim 2 , wherein said first segment and said second segment each have a bandwidth of 80 MHz.

5. The method of claim 1 , wherein each frequency band in said first combination of frequency bands has a bandwidth selected from a group including: 20 MHz, 40 MHz, and 80 MHz.

6. The method of claim 1 further comprising:
including information in said first data packet that identifies frequency bands included in said first combination of frequency bands.

7. The method of claim 1 further comprising:
setting a first bit set value in a designated field of said first data packet to identify a frequency band included in said first combination of frequency bands.

8. A method comprising:
obtaining information identifying a first plurality of frequencies available for transmitting a first data packet;
transmitting said first data packet using a first combination of frequency bands selected from said first plurality of frequencies;
obtaining information identifying a second plurality of frequencies available for transmitting a second data packet; and
transmitting said second data packet using a second combination of frequency bands selected from said second plurality of frequencies, wherein said first combination of frequency bands is different than said second combination of frequency bands,
wherein transmitting said first data packet includes:
parsing a data stream associated with said first data packet into a first set of data and a second set of data, wherein said first set of data is allocated to a first set of frequencies within the first combination of frequency bands, and said second set of data is allocated to a second set of frequencies within the first combination of frequency bands;
processing the first set of data in a first processing path including a first spatial mapper configured for processing data allocated to the first set of frequencies, wherein the first spatial mapper provides a first set of processed streams;
processing the second set of data in a second processing path including a second spatial mapper configured for processing data allocated to the second set of frequencies, wherein the second spatial mapper provides a second set of processed streams;
summing a first processed stream from the first set of processed streams and a first processed stream from the second set of processed streams to produce a first signal for transmission on a first antenna; and
summing a second processed stream from the first set of processed streams and a second processed stream from the second set of processed streams to produce a second signal for transmission on a second antenna.

9. The method of claim 8 , wherein transmitting said second data packet includes:
parsing a data stream associated with said second data packet into a third set of data and a fourth set of data, wherein said third set of data is allocated to a third set of frequencies within the second combination of frequency bands, and said fourth set of data is allocated to a fourth set of frequencies within the second combination of frequency bands;
processing the third set of data in the first processing path, including the first spatial mapper configured for processing data allocated to the third set of frequencies, wherein the first spatial mapper provides a third set of processed streams;
processing the fourth set of data in the second processing path, including the second spatial mapper configured for processing data allocated to the fourth set of frequencies, wherein the second spatial mapper provides a fourth set of processed streams;
summing a first processed stream from the third set of processed streams and a first processed stream from the fourth set of processed streams to produce a third signal for transmission on the first antenna; and
summing a second processed stream from the third set of processed streams and a second processed stream from the fourth set of processed streams to produce a fourth signal for transmission on the second antenna.

10. The method of claim 8 , wherein the first and second plurality of frequencies exist within a frequency spectrum comprising a first segment of frequencies and a second segment of frequencies, said first segment comprising a first set of frequency bands and said second segment comprising a second set of frequency bands.

11. The method of claim 10 , wherein said first set of frequency bands is not contiguous with said second set of frequency bands.

12. The method of claim 10 , wherein said first set of frequency bands and said second set of frequency bands each has a bandwidth of 80 MHz, and wherein each frequency band in said first combination of frequency bands and each frequency band in said second combination of frequency bands has a bandwidth selected from a group including: 20 MHz, 40 MHz, and 80 MHz.

13. The method of claim 8 , further comprising:
including information in said first data packet that identifies frequency bands included in said first combination of frequency bands; and
including information in said second data packet that identifies frequency bands included in said second combination of frequency bands.

14. The method of claim 8 , further comprising:
setting a first bit set value in a designated field of said first data packet to identify a frequency band included in said first combination of frequency bands; and
setting a second bit set value in the designated field of said second data packet to identify a frequency band included in said second combination of frequency bands.

15. A device comprising:
means for se

Assignees

• Kim Youhan
• Cho James
• Shi Kai
• Zhang Ning
• Qualcomm Inc

Inventors

• Kim Youhan
• Cho James
• Shi Kai
• Zhang Ning

Classifications

• H04L5/0023

  Time-frequency-space · CPC title

• H04L5/0044 Primary

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title

• H04L1/0643

  block codes · CPC title

• H04W72/0453 Primary

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title