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Enhancing IEEE 802.21 services to enable a Network Selection Entity (NSE) to consider multi-radio power management policy inputs such as……. (Give some examples to illustrate that there is a need to do a standard here….).
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Enhancing IEEE 802.21 services to enable a Network Selection Entity (NSE) to consider multi-radio power management policy inputs such as……. (Give some examples to illustrate that there is a need to do a standard here….) 1. Radios combine to form the dominant fraction of battery power consumed by these devices. Configuration of multiple radios as a set saves more power than relying on radio network technologies individually. No standard exists to support the combined power configuration of multi-radio mobile devices. For instance, turning all but the lowest power radio off or momentarily turning on a fast network interface. Enabling IEEE 802.21 services to support such a reduction in multi-radio power consumption will improve the user experience. The establishment and enforcement of radio configuration policy is beyond the scope of this project.
2. Enhancing IEEE 802.21 Services to expose radio power consumption values. Static power consumption values associated with a device (Watts) and the power consumption associated with the cost of transmitting a stream (J/bit) (need to) be defined. VG: Do we really need a standard for this…why will a white paper not do for this…a standard is required ONLY when something MUST be sent over the air-interface?) Lmt: not clear what 2nd sentence means. From “static” I infer not changing – does this mean the device or network needs to have (and maintain, update, etc.) a database of devices and associated power characteristics? 2. Enhancing IEEE 802.21 Services to expose radio power consumption values. We are interested in the power consumed by a network radio module, not with its transmission power and, even within a particular technology, device power consumption varies several fold. It is invalid to assume a single power consumption value for any network technology. The cost of measuring actual device current draw is an unreasonable burden to place on operators. The power consumed by a particular device must be returned by the device itself. No standard exists for getting radio power consumption values from diverse radio technologies. Static power consumption values of a radio (in Watts) as well as the cost of transmitting a stream (J/bit) can be easily exposed by existing mechanisms.
3. Enhancing IEEE 802.21 services to inform the NSE of the current radio power configuration of a mobile device. The power configuration of radio refers to whether it is on, off-available, or off-do-not-disturb, etc. A combined view of radio power configurations yields the optimal power configuration of a multi-radio mobile device. VG: Does the current 802.21 standard not do that already…Can the network not query the power state of a radio through another radio….? Lmt: can also omit the last sentence. 3. Enhancing IEEE 802.21 services to inform the NSE of the current radio power configuration of a mobile device. The power configuration of radio refers to whether it is on, off-available, or off-do-not-disturb, etc. The current definition of MIH Command Service is insufficient for describing such power configurations and, while mechanisms exist to change a radio power configuration, there is no mechanism to determine the existing configuration. A combined view of radio power configurations yields the optimal power configuration of a multi-radio mobile device but no standard means exists for establishing that configuration.
4. Detecting traffic destined for a radio interface in the off-available configuration and notifying the mobile device of that incoming traffic through an alternative active radio interface. VG: This needs to be explained little more. Why do this, when can this be done and what are the benefits…? Lmt: is the term “off-available” well understood by everyone? 4. Detecting traffic destined for a radio interface in the off-available configuration and notifying the mobile device of that incoming traffic through an alternative active radio interface. Turning off all radios is the ultimate power saving configuration but, without intervention, traffic destined for the device will be lost. Turning on only the lowest power radio results in the least power connected configuration. It may be that the low power interface will not satisfy the QoS requirements of all traffic flows. It may also be that even when no QoS constraints exist
5. Support from access network may be needed to reduce the initial response time of an off-available interface. (What is the initial response time of an off-available interface…..why should one care to put this in standard…describe the problem and then the standard approach?) 5. Support from access network may be needed to reduce the initial response time of an off-available interface. (What is the initial response time of an off-available interface…..why should one care to put this in standard…describe the problem and then the standard approach?)
