Dynamic selection of tolling protection mechanisms and multi-channel management
Techniques are disclosed for dynamically selecting out of band emission protection mechanisms to protect the usage of other frequency bands, as well as techniques for managing the scheduling and transmission of safety related messages having different communication latency requirements.
1 . A device, comprising:
a transmitter configured to transmit data using a first frequency band in accordance with a first communication protocol; and
processing circuitry configured to select, from among a set of different types of predetermined out of band emission protection mechanisms, one or more predetermined out of band emission protection mechanisms based upon a detected number of device data transmissions over the first frequency band,
wherein the one or more predetermined out of band emission protection mechanisms respectively define one or more transmission parameters causing an aggregation of out of band emissions caused by the device data transmissions over the first frequency band, which are introduced into a second frequency band associated with a second communication protocol, to meet a predetermined out of band emission threshold requirement, and
wherein the processing circuitry is further configured to cause the transmitter to use the selected one or more predetermined out of band emission protection mechanisms to transmit data over the first frequency band.
2 . The device of claim 1 , wherein the processing circuitry is configured to select, when the detected number of device data transmissions using the first frequency band is two or greater, a first one of the one or more predetermined out of band emission protection mechanisms that define one or more transmission parameters associated with a reduced transmission output power level for the transmitter.
3 . The device of claim 1 , wherein the use of a first one of the one or more predetermined out of band emission protection mechanisms results in the transmitter reducing a transmission output power level to provide a reduced transmission output power level.
4 . The device of claim 3 , wherein the processing circuitry is further configured to determine the reduced transmission output power level based upon a power spectral density (PSD) threshold requirement defined by the first communication protocol in accordance with data transmissions over the first frequency band.
5 . The device of claim 1 , wherein the device is part of a wireless network that services the device and a further device, and
wherein the number of device data transmissions over the first frequency band is detected via the further device and transmitted to the device.
6 . The device of claim 1 , wherein the device is serviced by a wireless network, and
wherein the number of device data transmissions over the first frequency band is detected via a network node of the wireless network and transmitted to the device.
7 . The device of claim 2 , wherein the processing circuitry is configured to select a second one of the one or more predetermined out of band emission protection mechanisms when the use of the first predetermined out of band emission protection mechanism by the transmitter results in the aggregation of out of band emissions, caused by the device data transmissions over the first frequency band, to exceed the predetermined out of band emission threshold requirement.
8 . The device of claim 7 , wherein the second predetermined out of band emission protection mechanism defines one or more transmission parameters associated with a further reduced transmission output power level for the transmitter.
9 . The device of claim 7 , wherein the second predetermined out of band emission protection mechanism defines one or more transmission parameters associated with a reduction in a frequency of data repetitively transmitted via the transmitter using the first frequency band.
10 . A device, comprising:
a transceiver configured to transmit data using a first frequency band in accordance with a first communication protocol; and
processing circuitry configured to:
select, from among a set of different types of predetermined out of band emission protection mechanisms, one or more predetermined out of band emission protection mechanisms based upon an identified number of device data transmissions using the first frequency band in accordance with the first communication protocol, the number of device data transmissions being determined in accordance with a transmission schedule,
wherein the one or more predetermined out of band emission protection mechanisms define one or more transmission parameters that cause an aggregation of out of band emissions caused by the device data transmissions over the first frequency band, which are introduced into a second frequency band associated with a second communication protocol, to meet a predetermined out of band emission threshold requirement, and
wherein the transceiver is configured to receive a control signal that causes the transceiver to use the selected one or more predetermined out of band emission protection mechanisms to transmit data over the first frequency band.
11 . The device of claim 10 , wherein the processing circuitry is configured to select, when the identified number of device data transmissions using the first frequency band is two or greater, a first one of the one or more predetermined out of band emission protection mechanisms that define one or more transmission parameters associated with a reduced transmission output power level for the transceiver.
12 . The device of claim 11 , wherein the processing circuitry is configured to select a second one of the one or more predetermined out of band emission protection mechanisms when the use of the first predetermined out of band emission protection mechanism by the transceiver results in the aggregation of out of band emissions, caused by the device data transmissions over the first frequency band, to exceed the predetermined out of band emission threshold requirement.
13 . The device of claim 12 , wherein the second predetermined out of band emission protection mechanism defines one or more transmission parameters associated with a further reduced transmission output power level for the transceiver.
14 . The device of claim 12 , wherein the second predetermined out of band emission protection mechanism defines one or more transmission parameters associated with a reduction in a frequency of data repetitively transmitted via the transceiver using the first frequency band.
15 . The device of claim 10 , wherein the selection of a first one of the one or more predetermined out of band emission protection mechanisms results in the transceiver reducing a transmission output power level for transmitting data using the first frequency band to provide a reduced transmission output power level.
16 . The device of claim 15 , wherein the reduced transmission output power level is based upon a power spectral density (PSD) threshold requirement defined by the first communication protocol in accordance with data transmissions over the first frequency band.
17 . A device, comprising:
a transmitter configured to transmit first safety service messages and second safety service messages in accordance with a communication protocol that defines a plurality of channels, the first safety service messages being transmitted with a lower latency requirement than the second safety service messages; and
processing circuitry configured to cause the transmitter to transmit the first and second safety service messages in accordance with a transmission schedule that results in the transmitter (i) transmitting each respective one of the first safety service messages using a respective one of the plurality of channels, and (ii) sequentially transmitting each respective one of the second safety service messages using a first channel from among the plurality of channels.
18 . The device of claim 17 , wherein the transmission schedule results in the transmitter transmitting the first safety service messages simultaneously via each respective one of the plurality of channels.
19 . The device of claim 17 , wherein the transmission schedule results in the transmitter transmitting the first safety service messages sequentially via each of the plurality of channels such that a portion of two or more of the first safety service messages overlap in time with one another on different channels from among the plurality of channels.
20 . The device of claim 19 , wherein the processing circuitry is configured to cause the device to perform a Listen Before Talk (LBT) operation on each one of the plurality of channels in accordance with the communication protocol, and to cause the transmitter to transmit the first safety service messages sequentially via each of the plurality of channels by determining channel availability on each one of the plurality of channels in accordance with the LBT operation.
21 . The device of claim 17 , wherein the transmission schedule results in the transmitter transmitting the first safety service messages sequentially via each of the plurality of channels such that none of the first safety service messages overlap in time with one another.
22 . The device of claim 17 , wherein the transmission schedule results in the transmitter repeatedly transmitting the second safety service messages on the first channel in accordance with a safety service message transmission frequency as defined by the communication protocol.
23 . The device of claim 22 , wherein the transmission schedule further results in the transmitter sequentially transmitting receiver configuration data using each of the plurality of channels in accordance with a receiver configuration transmission frequency that is higher than the safety service message transmission frequency, the receiver configuration data instructing another device receiving the second safety service messages to use the first channel to receive the second safety service messages.
24 . The device of claim 23 , wherein the transmitter sequentially transmits the receiver configuration data using each of the plurality of channels by switching, after each receiver configuration data transmission, the channel from among the plurality of channels used to transmit the receiver configuration data.