Abstract: The present invention relates to an electrode system for detecting residual chlorine in water. Active electrode of the device was prepared by a very simple method in which the antimony pellet was prepared using high pressure and sintering at higher temperatures. An advanced version of the same was prepared by electrochemical coating of antimony on copper rods. A combination of thin platinum wire and antimony coated electrode was used to test residual chlorine in water. The said device responds to the changes in residual chlorine concentrations in water in the range of 0-4 ppm. To increase the accuracy of the electrode system two platinum-antimony electrodes were used by adding an inline cartridge of oxidant absorptive material. This method was used for the sensing of pH using the same electrode system and further pH compensation of chlorine signal.

Abstract: Methods and systems for selecting a communication channel from a plurality of available channels in an infrastructure basic service set network having a plurality of access points APs comprising: monitoring the available channels for a scan time by a co-located radio station to capture signal level from APs at each channel; calculating weighted channel power level of each channel to determine the channel with minimum power and free channels from the available channels; receiving the signal level of each channel from co-located radio station to processor and calculating weighted channel power level of each channel to select the communication channel, selecting communication channels comprises: identifying free channels; where only one free channel, select the free channel, where plurality, select the free channel with minimum interference less than a predefined value and with lower weighted channel power level, where no free channels, select the channel with minimum weighted channel power level.

Abstract: The present disclosure relates to a method and system for selecting a communication channel from a plurality of available channels in an infrastructure basic service set network having at least an access point and a plurality of access points, the method comprising: monitoring the available channels for a predetermined scan time by a co-located radio station to capture signal level from the plurality of access points at each channel; calculating weighted channel power level of each channel by the processor to determine the channel with minimum power and free channels from the available channels; receiving the signal level of each channel from co-located radio station to processor and calculating weighted channel power level of each channel by a processor to select the communication channel, selecting communication channels comprises: identifying free channels; where there is only one free channel, the free channel is selected, where there is plurality of free channels, the free channel with minimum interferen

Abstract: Methods enable a paging service and a media service to be carried on a single carrier frequency. The methods includes: determining to send a paging record to a communication device for a first media service, wherein the first media service is provided on a first carrier frequency; inserting the paging record into a first message generated using a protocol that is also used to provide a second different media service to the communication device on a second different carrier frequency; providing a paging indication using the protocol; and sending the paging indication and the first message with the paging record over the second carrier frequency. The protocol can be a multimedia broadcast service (MBMS) protocol. The paging indication alerts the communication device to monitor the second carrier frequency for the paging record.

Abstract: A method and apparatus for managing delivery of information in a wireless network (100) includes bearer plane information handlers (110, 111), each of which maintains a database of paging controller associations (200). Each paging controller association is an association of an idle mobile device to a last known paging controller of that idle mobile device. The apparatus also includes paging controllers (115-118), each of which is associated with at least one paging area (130-133). For each paging area, the paging controller maintains a database of all base transmitters of the paging area that are associated with the paging controller (310) and maintains a database of other selected paging controllers that control base transmitters in the paging area (315). Using these resources, the method uses location notification messages and paging responses to deliver bearer plane information to a mobile device (125) that has been idle.

Abstract: Methods enable a paging service and a media service to be carried on a single carrier frequency. The methods includes: determining to send a paging record to a communication device for a first media service, wherein the first media service is provided on a first carrier frequency; inserting the paging record into a first message generated using a protocol that is also used to provide a second different media service to the communication device on a second different carrier frequency; providing a paging indication using the protocol; and sending the paging indication and the first message with the paging record over the second carrier frequency. The protocol can be a multimedia broadcast service (MBMS) protocol. The paging indication alerts the communication device to monitor the second carrier frequency for the paging record.

Abstract: A method and apparatus for managing delivery of information in a wireless network (100) includes bearer plane information handlers (110, 111), each of which maintains a database of paging controller associations (200). Each paging controller association is an association of an idle mobile device to a last known paging controller of that idle mobile device. The apparatus also includes paging controllers (115-118), each of which is associated with at least one paging area (130-133). For each paging area, the paging controller maintains a database of all base transmitters of the paging area that are associated with the paging controller (310) and maintains a database of other selected paging controllers that control base transmitters in the paging area (315). Using these resources, the method uses location notification messages and paging responses to deliver bearer plane information to a mobile device (125) that has been idle.