System and method for improving the use of radio spectrum in transmission of data

• US 8,514,775 B2
• Filed: 07/15/2008
• Issued: 08/20/2013
• Est. Priority Date: 07/17/2007
• Status: Active Grant

• Current Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Frecassetti, Mario Giovanni, Mirelli, Giacomo, Gerosa, Marzio
• Primary Examiner(s): PHUNKULH, BOB A
• Application Number:
  US12/173,634
• Publication Number:
  US 20090022179A1
• Time in Patent Office: 1,862 Days
• Field of Search: None
• US Class Current: 370/328
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/2491 Mapping quality of service [QoS] requirements between different networks
• CPC Class Codes: H04L 47/365 Dynamic adaptation of the packet size
• CPC Class Codes: H04L 47/38 by adapting coding or compression rate
• CPC Class Codes: H04W 28/0231 based on communication conditions dynamic wireless traffic scheduling definition based on channel quality criteria H04W72/54
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

System and method for improving the use of radio spectrum in transmission of data, according to which the payload information of any known line interface is divided into a plurality of data portions of smaller which are then grouped into packets so as to be subsequently radio transmitted. For transmission of such packets, suitable radio channels are selected. The invention also relates to reception of such radio channels having such packets incorporated therein, wherein the received packets are then transformed into payload information for inputting into corresponding line interfaces.

Claims

1. A method of radio transmitting a payload of a line interface, the method comprising the steps of:

dividing the payload into a plurality of data portions,

grouping said plurality of data portions so as to form a first packet and a second packet,

selecting a first available radio channel suitable for incorporating said first packet in said first radio channel and a second available radio channel suitable for incorporating said second packet in said second radio channel,

incorporating said first packet in the first selected radio channel and incorporating said second packet in the second selected radio channel, and

transmitting said first selected radio channel with said first packet incorporated in the first selected radio channel and transmitting said second selected radio channel with said second packet incorporated in the second selected radio channel.

2. The method of claim 1, further comprising the steps of:

selecting a modulation scheme appropriate for the characteristics of a link budget of said radio transmission, and

transmitting said first selected radio channel with said first selected packet incorporated in the first selected radio channel, based on said selected modulation scheme.

3. A method according to claim 2, wherein for selecting a modulation scheme account is taken of a link budget of transmission.

4. A method according to claim 1, further comprising the step of multiplexing first and second packets into a multiplexed packet stream.

5. A method according to claim 4, further comprising a step of dividing the multiplexed packet stream according to a capacity and/or configuration of the first and second selected radio channels, into packets in order to form suitable radio frames to be transmitted through air over the first and second selected radio channels.

6. A method according to claim 1, wherein a further condition for selecting said first radio channel is that of having a size suitable for incorporating said first packet in said first radio channel.

7. A method according to claim 1, wherein packets formed from said line interface and packets formed from another line interface are merged together.

8. A method according to claim 1, wherein the channels are of different types.

9. A programmable device comprising a non-transitory computer-readable medium with a software program recorded thereon, the software program comprising instructions which, when executed on the device, cause the device to carry out the steps of claim 1.

10. A transmitter comprising a packet processor for transmitting or receiving a payload of a line interface, the packet processor comprising:

a framer for dividing said payload into a plurality of data portions and for grouping said plurality of data portions so as to form first and second packets,

a clock unit for providing a clock signal to said first and second packets, and

a packet builder for adding a header to said first and second packets, said transmitter further comprising;

a packet aggregator for multiplexing said first and second packets formed by said packet processor to form a multiplexed packet stream

a packet allocator for allocating said first packet from said multiplexed packet stream to a first available radio channel having a suitable size for having said packet allocated, and for allocating said second packet from said multiplexed packet stream to a second available radio channel having a suitable size for having said second packet allocated, and

a transmitter unit for radio transmitting said first available radio channel with said first packet allocated to said first radio channel and for radio transmitting said second available radio channel with said second packet allocated to said second radio channel.

11. A transmitter according to claim 10, further comprising means for selecting a modulation scheme appropriate for characteristics of a link budget of said radio transmission and means for transmitting said first available radio channel with said first packet allocated in said first available radio channel, based on said selected modulation scheme.

12. A transmitter according to claim 10, wherein said packet allocator is adapted for dividing the multiplexed packet stream according to a capacity and/or configuration of the first and second selected radio channels, into packets in order to form suitable radio frames to be transmitted through air over the first and second available channels.

13. A receiver for receiving radio transmission of a payload, said receiver comprising:

a packet processor for receiving a first packet from a first radio channel and a second packet from a second radio channel, said first and second packets each including data portions of a specific payload, the packet processor being configured for;

breaking the first packet into a plurality of first data portions and for breaking the second packet into a plurality of second data portions, and

grouping together identified first data portions and identified second data portions while reconstructing said specific payload.

14. A receiver according to claim 13, adapted for receiving a radio channel containing at least a packet comprising payload information, and transmitting said payload information to a line interface.

15. A transceiver comprising a transmitter for radio transmitting a payload of a line interface, and further comprising the receiver of claim 13, wherein said transmitter includes a packet processor for transmitting said payload, said packet processor comprising:

a framer for dividing said payload into a plurality of data portions and for grouping said plurality of data portions so as to form first and second packets,

a clock unit for providing a clock signal to said first and second packets, and

a packet builder for adding a header to said first and second packets, said transmitter further comprising;

a packet aggregator for multiplexing said first and second packets formed by said packet processor to form a multiplexed packet stream

a packet allocator for allocating said first packet from said multiplexed packet stream to a first available radio channel having a suitable size for having said packet allocated, and for allocating said second packet from said multiplexed packet stream to a second available radio channel having a suitable size for having said second packet allocated, and

a transmitter unit for radio transmitting said first available radio channel with said first packet allocated to said first radio channel and for radio transmitting said second available radio channel with said second packet allocated to said second radio channel.