Method and system for managing transmission resources in a wireless communications network

• US 7,126,913 B1
• Filed: 12/03/2002
• Issued: 10/24/2006
• Est. Priority Date: 03/01/1999
• Status: Expired due to Term

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Choksi, Ojas T., Patel, Pulin R., Patel, Achal R.
• Primary Examiner(s): To, Doris H.
• Assistant Examiner(s): Hyun, Soon D.
• Application Number:
  US10/309,393
• Time in Patent Office: 1,421 Days
• Field of Search: 370/230, 370/230.1, 370/235, 370/235.1, 370/252, 370/332, 370/329, 370/348, 370/465
• US Class Current: 370/230.1
• CPC Class Codes: H04L 2012/5607 Radio
• CPC Class Codes: H04L 2012/5632 Bandwidth allocation
• CPC Class Codes: H04L 2012/5636 Monitoring or policing, e.g. compliance with allocated rate, corrective actions
• CPC Class Codes: H04L 2012/5679 Arbitration or scheduling
• CPC Class Codes: H04L 2012/568 Load balancing, smoothing or shaping
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 52/346 distributing total power among users or channels
• CPC Class Codes: H04W 72/52 based on load

Abstract

A method and system for managing transmission resources in a wireless communications network includes receiving a plurality of packets and determining a time duration for transmission of each packet. A power level for transmission of each packet over the time duration is further determined. Based on the time duration and the power level determined for each packet, a wireless resource impact is determined for each packet. Transmission resources are allocated to each packet based on the wireless resource impact determined for each packet.

Claims

1. A method for managing transmission resources in a wireless communications network, comprising:

receiving a plurality of packets; and

for each packet;

determining a time duration for transmission of the packet;

determining a power level for transmission of the packet over the time duration;

determining a wireless resource impact for transmission of the packet based on the time duration and the power level determined for the packet, wherein the wireless resource impact is a sector impact representing the impact of transmitting the packet in a sector of the wireless network; and

allocating transmission resources to the packet based on the wireless resource impact.

2. The method of claim 1, further comprising:

determining a geographic interference impact of transmitting the packet in the sector for each disparate sector of one or more disparate sectors based on the sector impact;

determining a network impact based on the sector impact and the geographic interference impact; and

allocating transmission resources to the packet based on the network impact.

3. The method of claim 2, wherein the wireless communications network comprises a cellular network, the sector comprises a cell site of the cellular network, and the disparate sector comprises one of an adjacent or co-channel cell site of the cellular network.

4. The method of claim 2, further comprising updating available resources in the wireless network based on the network impact of each packet.

5. A system for managing transmission resources in a wireless communications network, comprising:

a queue to store a plurality of packets; and

a queue manager operable, for each packet, to determine a time duration for transmission of the packet, to determine a power level for transmission of the packet over the time duration, to determine a wireless resource impact for transmission of the packet based on the time duration and the power level determined for the packet, wherein the wireless resource impact is a sector impact representing the impact of transmitting the packet in a sector of the wireless network, and to check-out the packet from the queue based on availability of transmission resources.

6. The system of claim 5, the queue manager further, for each packet, to determine a geographic interference impact of transmitting the packet in the sector for each disparate sector of or more disparate sectors based on the sector impact, to determine a network impact based on the sector impact and the geographic interference impact, and to allocate transmission resources to the packet based on the network impact.

7. The system of claim 6, the queue manager further to update available resources in the wireless network based on the network impact of each packet.

8. The system of claim 6, wherein the wireless communications network comprises a cellular network, the sector comprises a cell site of the cellular network, and the disparate sector comprises one of an adjacent or co-channel cell site of the cellular network.

9. The system of claim 5, further comprising:

software stored in a computer-readable medium; and

the software comprising the queue manager.

10. The system of claim 5, further comprising an application specific integrated circuit (ASIC) comprising the queue manager.

11. The system of claim 5, further comprising a field programmable gate array (FPGA) comprising the queue manager.

12. A method for managing transmission resources in a wireless communications network, comprising:

receiving a plurality of data packets;

characterizing each data packet based on a rate of packet transmission, a power of packet transmission, and an interference impact at each of a plurality of locations caused by transmission of the packet; and

allocating transmission resources to each data packet based on the characterization of each data packet.

13. A system for managing transmission resources in a wireless communications network, comprising:

computer implementable instructions encoded in at least one computer processable medium; and

the instructions, upon processing to receive a plurality of data packets, to characterize each data packet based on a rate of packet transmission, a power of the packet transmission, and an interference impact at each of a plurality of locations caused by transmission of the packet, and to allocate transmission resources to each data packet based on the characterization of each data packet.

14. The system of claim 13, wherein the computer implementable instructions comprise software stored on a computer-readable medium.

15. The system of claim 13, wherein the computer implementable instructions comprise instructions encoded in a specialized processor.

16. The system of claim 15, wherein the specialized processor comprises a field programmable gate array (FPGA).

17. The system of claim 15, wherein the specialized processor comprises an application specific integrated circuit (ASIC).

18. A transmission control system, comprising:

computer implementable instructions encoded in at least one computer processable medium; and

the instructions, upon processing to allocate resources in a wireless network based on a multiple dimension token, the multiple dimension token comprising a first dimension representing a time duration for transmission of a packet and a second dimension representing a power level for transmission of the packet over the time duration.

19. The system of claim 18, wherein the token further comprises a third dimension representing disparate locations in the wireless network, the multiple dimension token representing an impact of transmitting the token on each of the locations.

20. The system of claim 19, wherein the locations include a transmission sector in which the packet is to be transmitted in a plurality of disparate sectors proximate to the transmission sector.

21. The system of claim 20, wherein the size of the multiple dimension token in the third dimension for each of the disparate sectors is a function of the size of the token in the transmission sector.

22. The system of claim 21, wherein the sectors are each a cell site of a cellular network.