Repeated channel adaptive frequency hopping
AssigneeTexas Instruments Incorporated
InventorsAnuj Batra, Kofi Dankwa Anim-Appiah
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Abstract
The invention provides systems, devices, and methods for frequency hopping. In one method embodiment, the invention hops between frequencies by using the same channel to transmit data from a master to a slave, and from the slave to the master. One system embodiment provides an enhanced master coupled to an enhanced slave. In one device embodiment, the invention is a computer readable medium adapted to enable frequency hopping in a frequency band.
Claims6
A method of communication in a frequency hopping wireless network using a time-division duplex (TDD) scheme having a plurality of time slots divide into a plurality of master-to-slave slots and a plurality of slave-to-master slots, wherein the plurality of master-to-slave slots are even slots and the plurality of slave-to-master slots are odd slots, said method comprising:
- coupling an enhanced master device with a slave device without using polling or a handshake;
- initiating communication from the master device to the slave device on a channel selected from an original hopping sequence, wherein the master device is only device that can initiate transmissions using only data and not control information;
- selecting a channel from a repeated channel adaptive hopping sequence, derived from the original hopping sequence, if the slave device is an enhanced slave device;
- and
- responding to the master device from the slave device on a channel selected from a repeated channel adaptive hopping sequence if the slave device is an enhanced slave device;
- responding to the master device from the slave device on a channel selected from the original hopping sequence if the slave device is a legacy slave device,
- wherein, at any one time instant, only a single device can be transmitting within the network.
A system for communication in a frequency hopping wireless network, said system comprising:
- a master device;
- and
- at least one slave device communicatively coupled to the master device, wherein the master device is configured to initiate communication with the slave device on a channel selected from an original hopping sequence without using polling or a handshake, wherein the master device is only device that can initiate transmissions using only data and not control information;
- and
- the slave device is configured to transmit data to the master device in response to the master device initiating the communication on a channel selected from a repeated channel adaptive hopping sequence, derived from the original hopping sequence, if the slave device is an enhanced slave device or on a channel selected from the original hopping sequence if the slave device is a legacy slave device, wherein, at any one time instant, only a single device can be transmitting within the network.
Dependencies are inferred from the claim text.