Collision detection and bitwise arbitration in multicarrier wireless networks
US9072109B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Sep 7, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0053
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is provided for detecting collisions and arbitrating channel access in a multicarrier wireless network. The method includes: transmitting a collision probe over a data channel using a first antenna of a first communication device, where the collision probe is derived from a binary codeword comprised of k bits and each bit of the binary codeword is transmitted using a different subcarrier frequency of the data channel; listening for a signal on the data channel using a second antenna of the first communication device and concurrently with the transmission of the collision probe; comparing a collision probe received on the data channel from another communication device with the collision probe transmitted on the data channel by the first communication device; detecting a collision on the data channel based on the comparison step; and arbitrating access to the data channel upon detecting a collision on the data channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.