SUPPORTING A POSITIONING OF AN APPARATUS THAT IS BASED ON PERIODIC TRANSMISSIONS OF THE APPARATUS
For enabling a situational adjustment of the frequency of a periodic transmission by a mobile apparatus, which enables a determination of positions of the mobile apparatus, at least one criterion for an adjustment of the frequency is monitored. When it is detected that the at least one criterion is met, an adjustment of the frequency is caused. The actions may be performed at the mobile apparatus or at a stationary apparatus providing re-configuration messages to the mobile apparatus.
1 - 24 . (canceled)
25 . A method comprising:
monitoring at least one criterion for an adjustment of a frequency of a periodic transmission of information by a mobile apparatus via an air interface, the periodic transmission enabling a determination of positions of the mobile apparatus; and
when it is detected that the at least one criterion is met, causing an adjustment of the frequency.
26 . The method according to claim 25 , wherein the criterion relates to at least one of receipt, by the mobile apparatus, of a re-configuration message from a stationary apparatus;
sensor data;
an indication of ambient temperature;
an indication of a movement of the mobile apparatus;
an indication of a position of the mobile apparatus;
an indication of remaining battery energy available to the mobile apparatus;
an indication of an amount of ambient light;
an indication of a physical force applied to the mobile device;
a current time of day;
a current date;
an amount of traffic on the air interface; and
an amount of detected packet collisions on the air interface.
27 . The method according to claim 26 , wherein the mobile apparatus monitors the at least one criterion only at least one of:
in predetermined time intervals; and
for a predetermined period after each transmission of information.
28 . The method according to claim 25 , wherein the monitoring is performed at least at a stationary apparatus, and wherein causing an adjustment of the frequency comprises causing, by the stationary apparatus, a transmission of a re-configuration message to the mobile apparatus.
29 . The method according to claim 28 , wherein the criterion monitored by the stationary apparatus relates to at least one of:
a position of the mobile apparatus;
a movement of the mobile apparatus;
a current time of day;
a current date;
information received, at the stationary apparatus, from the mobile apparatus;
a current battery status of the mobile apparatus;
a quality of received transmissions;
an amount of mobile apparatuses transmitting information;
an amount of traffic on the air interface; and
an amount of detected packet collisions.
30 . The method according to claim 25 , wherein the monitoring is performed at least at the mobile apparatus and the criterion includes at least receiving, by the mobile apparatus, a re-configuration message from a stationary apparatus, or the monitoring is performed at least at a stationary apparatus and causing an adjustment of the frequency comprises transmitting, by the stationary apparatus, a re-configuration message to the mobile apparatus, and wherein the re-configuration message indicates at least one of:
a desired frequency for the periodic transmission of information;
a desired range of frequency for the periodic transmission of information;
a desired time interval between periodic transmissions of information;
a desired range of time intervals between periodic transmissions of information;
a desired amount of change of a frequency currently used for a periodic transmission of information;
an indication of a further criterion for adjusting the frequency of the periodic transmission of information;
a target battery life for the mobile apparatus; and
a time span during which an adjustment of frequency is to be applied.
31 . The method according to claim 25 , further comprising transmitting, by the mobile apparatus, at least one of
a confirmation of adjustment of frequency;
a report of failure of an adjustment of frequency;
an indication of an adjusted frequency;
an energy status of a battery of the mobile apparatus; and
an indication of a status of motion of the mobile apparatus.
32 . An apparatus comprising means for realizing the actions of the method of claim 25 .
33 . The apparatus according to claim 32 , further comprising at least one of:
a battery;
a sensor;
a temperature sensor;
a light sensor;
a movement sensor;
a time monitor;
a circuitry configured to detect a status of a battery providing a power supply to the mobile apparatus;
a circuitry configured to detect a status of the air interface;
a transceiver; and
a user interface.
34 . An apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform:
monitor at least one criterion for an adjustment of a frequency of a periodic transmission of information by a mobile apparatus via an air interface, the periodic transmission enabling a determination of positions of the mobile apparatus; and
cause an adjustment of the frequency, when it is detected that the at least one criterion is met.
35 . The apparatus according to claim 34 , wherein the apparatus is the mobile apparatus.
36 . The apparatus according to claim 35 , wherein the criterion relates to at least one of receipt, by the mobile apparatus, of a re-configuration message from a stationary apparatus;
sensor data;
an indication of ambient temperature;
an indication of a movement of the mobile apparatus;
an indication of a position of the mobile apparatus;
an indication of remaining battery energy available to the mobile apparatus;
an indication of an amount of ambient light;
an indication of a physical force applied to the mobile device;
a current time of day;
a current date;
an amount of traffic on the air interface; and
an amount of detected packet collisions on the air interface.
37 . The apparatus according to claim 35 , wherein the at least one memory and the computer program code is further configured to, with the at least one processor, cause the apparatus to monitor the at least one criterion only at least one of:
in predetermined time intervals; and
for a predetermined period after each transmission of information.
38 . The apparatus according to any of claim 35 , wherein the at least one memory and the computer program code is further configured to, with the at least one processor, cause the apparatus to transmit at least one of
a confirmation of adjustment of frequency;
a report of failure of an adjustment of frequency;
an indication of an adjusted frequency;
an energy status of a battery of the mobile apparatus; and
an indication of a status of motion of the mobile apparatus.
39 . The apparatus according to claim 34 , wherein the apparatus is a stationary apparatus, and wherein the at least one memory and the computer program code is further configured to, with the at least one processor, cause the apparatus to cause an adjustment of the frequency by causing a transmission of a re-configuration message to the mobile apparatus.
40 . The apparatus according to claim 39 , wherein the criterion relates to at least one of:
a position of the mobile apparatus;
a movement of the mobile apparatus;
a current time of day;
a current date;
information received, at the stationary apparatus, from the mobile apparatus;
a current battery status of the mobile apparatus;
a quality of received transmissions;
an amount of mobile apparatuses transmitting information;
an amount of traffic on the air interface; and
an amount of detected packet collisions.
41 . The apparatus according to any of claim 39 , wherein the apparatus is a mobile apparatus and the criterion includes at least receiving, by the mobile apparatus, a re-configuration message from a stationary apparatus or the apparatus is a stationary apparatus configured to cause an adjustment of the frequency by transmitting a re-configuration message to the mobile apparatus, and wherein the re-configuration message indicates at least one of:
a desired frequency for the periodic transmission of information;
a desired range of frequency for the periodic transmission of information;
a desired time interval between periodic transmissions of information;
a desired range of time intervals between periodic transmissions of information;
a desired amount of change of a frequency currently used for a periodic transmission of information;
an indication of a further criterion for adjusting the frequency of the periodic transmission of information;
a target battery life for the mobile apparatus; and
a time span during which an adjustment of frequency is to be applied.
42 . A system comprising a mobile apparatus and a positioning infrastructure, wherein at least one of the mobile apparatus and a stationary apparatus of the positioning infrastructure is an apparatus according to claim 32 .
43 . A computer program code causing an apparatus to perform the actions of the method of claim 25 when executed by a processor.
44 . A computer readable storage medium in which computer program code is stored, the computer program code causing an apparatus to perform the following when executed by a processor:
monitoring at least one criterion for an adjustment of a frequency of a periodic transmission of information by a mobile apparatus via an air interface, the periodic transmission enabling a determination of positions of the mobile apparatus; and
when it is detected that the at least one criterion is met, causing an adjustment of the frequency.