Abstract: Embodiments of the present invention provide a flexible system for providing wireless broadband access. The system can include a gateway that has a plurality of gateway premises equipment (“GPE”) units and a network fuser connected to the plurality of GPE units to coordinate the activities of the plurality of the GPE units. The network fuser can provide DSP configuration information and RF configuration information to the GPE units. The network fuser is also operable to connect to a high-speed network (e.g., a backhaul network) and to provision data from the high-speed network to each of the plurality of GPE units. The system can also include a plurality of customer premises equipment (“CPE”) units remote from the gateway.

Abstract: A method for communication over a telecommunications network includes selecting a public telecommunication station located in the vicinity of a mobile telephone. The public telecommunication station is used by the mobile telephone as an access point to the telecommunications network.

Abstract: A mobile station is coupled to a docking station that has a landline connection to a packet-switched network. In response, the mobile station's mobile directory number (MDN) is registered, via the packet-switched network, as being accessible via the docking station. As a result, when a call is placed to the MDN, the call is routed to the docking station via the packet-switched network. Communication devices coupled to the docking station may then be used to answer the call and/or participate in the call.

Abstract: A method and system for using location of a cellular wireless communication device (WCD) as a basis to restrict application of a cellular-PBX integration service. In one embodiment, a radio access network (RAN) serving the WCD receives a call request for the WCD, and, based on the WCD's location, a determination is made as to whether the call should be set up to an IP PBX server that serves the WCD, to allow the IP PBX server to handle the call. In another embodiment, an IP PBX server serving a WCD receives a call request and responsively signals to a call session control function (CSCF), and the CSCF or a policy server decides based on the WCD's location whether the call should be set up to the RAN that serves the WCD, to allow the RAN to handle the call.

Abstract: A system for (and a method of) selectively establishing communication with one of plural devices associated with a single telephone number during a disaster or disaster recovery period. In a preferred embodiment, the system includes two wireless connection units, each connected between a respective private branch exchange (PBX) network and a public switched telephone network. Each wireless connection unit preferably serves as a gateway between its respective PBX network and one or more remote communication devices. The wireless connection units replicate each others databases. In the event of a disaster that destroys or renders one of the wireless connect/PBX networks inoperable, telephone calls destined for the inoperable network are seamlessly routed to the operable wireless connect/PBX network. Since the operable wireless connection unit contains information for both networks, inbound, outbound and extension to extension calls for each network can be handled despite the disaster.

Abstract: A method and system for selectively applying a cellular-PBX integration service. When a radio access network (RAN) receives a call request seeking to set up a call for a cellular wireless communication device (WCD) that is operating in the coverage area of the RAN, a determination is made as to whether the WCD is currently checked-into a cellular-PBX integration service. A service control point (SCP), for instance, may make the determination. If the determination is that the WCD is currently checked-in, then the call is set up to an IP PBX server that services the WCD, and the IP PBX server may then handle the call as it would handle a call placed to any IP PBX extension. Further, differential billing can be applied, charging an enterprise billing-account for the call if the WCD is checked-in, and charging a WCD billing-account for the call if the WCD is not checked-in.

Abstract: A wireless terminal comprising a transmitter configured to support a wireless connection with a server and a processor configured to enable a user to play an interactive game through the server with a plurality of other users on wireless terminals across a plurality of platforms.

Abstract: A structure and method reduce interference between an antenna and a peripheral device. The structure includes an antenna module and a speaker module. The antenna module includes a carrier and the antenna attached to the carrier. The speaker module is mounted in the carrier and includes a speaker and a signal line electrically connected to the speaker. The structure changes at least one of a shape and a length of the signal line to secure a radiation performance of the antenna module.

Abstract: A method for producing hard copies of electronic information employing a portable personal receiving device includes the steps of selecting information to print and utilizing the receiving device to identify available printers based on the location of the receiving device for printing the selected information in hard copy form. The portable receiving device is connected to one of the available printers and the selected information is printed in hard copy form. A system for producing hard copies of electronic information employing a portable personal receiving device includes a portable receiving device having a program enabling selection of information to print. The portable device includes a program to identify available printers based on the location of the receiving device. A communications link connects the portable receiving device to an available printer.

Abstract: A method and apparatus for managing a communication link in a communication network are provided. A continuous actuation button is configured to initiate a communication link between communication devices. The communication link is initiated when a force applied on the continuous actuation button exceeds a first force threshold. The force applied on the continuous actuation button is sampled at periodic time intervals. A release event of the continuous actuation button is detected when the force applied on the continuous actuation button reaches a second force threshold. The communication link is maintained for a predefined period of time after detecting the release event based on whether the sampled force indicates that the release event was unintentional. The predefined period of time is sufficient to allow a user to take action to avoid disconnection if undesired.

Abstract: A portable radio communications device is for transmitting data and voice communications. The portable radio communications device may include a portable housing, a radio transceiver operating at a frequency in a range of 30 MHz-3000 MHz and being carried by the portable housing for direct communication with a corresponding radio transceiver, and a metropolitan area network (MAN) transceiver carried by the portable housing for indirect communication with a corresponding MAN transceiver via a MAN base station. The portable radio communications device may also include a controller carried by the portable housing for selectively allocating transmission of the data and voice communications between the radio transceiver and the MAN transceiver based upon a received signal characteristic. The controller may preferentially allocate the voice communications and the data communications to the radio transceiver and the MAN transceiver, respectively.

Abstract: An active antenna with an IP address including a first set of modules (Mi) and a second set of modules (M?j), both sets using a same hardware platform and each set integrating radiofrequency sub-modules. Further including at least an Ethernet connection to the core network for providing the active antenna with capability of operation from an anchor site, and a digital platform integrating a set of modules for base-band processing, operating in one or more of 2G, 3G and LTE technologies. The active antenna includes processing apparatus for control plane of 2G and 3G radio access networks, routing apparatus for lu, Gb or S1 data relay from/to the core network to provide the active antenna with capability of operation from a relay site. Further included is at least two optical ports for connection in chain with a pair of active antennas in the same relay site and a power supply connection.

Abstract: Method for receiving, demodulating and processing a Global Positioning System (GPS) and a first video Orthogonal Frequency Division Multiplexed (OFDM) modulated signal into a position finding GPS and a video OFDM processed baseband signal in a phone. Providing video processed signal and processed GPS position finding signal to an interface unit of a first mobile device. Generating in first mobile device by a video camera a second video signal and a photo camera generated signal and providing said second video signal or photo camera generated signal by a wire connection or wirelessly to a second mobile device or to a video display. The second mobile device and said video display is at a different location than the first mobile device. Processing a touch screen generated signal into a touch screen generated control signal, wherein said control signal is used for control of the first mobile device.

Abstract: A mobile wireless communication device also has at least one wired communication port. Enhanced security is achieved by permitting the device to automatically disable one or more wireless ports when connected to a wired port. Specific combinations/permutations of such automatic control may be effected by use of an IT Policy also resident on the device.

Abstract: The invention includes a message switching equipment for transmitting messages between container units placed in containers and a monitoring server. The message switching equipment comprises at least a container unit 201, a gateway unit 202 providing communication links 203, and a message handler 204 which is coupled to the monitoring server 205. The message switching equipment is adapted to send a first message 206 from the container unit 201 via a cellular network 207 to the message handler 204 in response to an event relating to the container. In more detail, the first message 206 is sent through a cellular network radio 208 of the container unit 201. The equipment is further adapted to receive through a short range radio 209 of the container unit 201 a second message 210 originated from one of the container units and transmit the second message 210 from the container unit 201 via the cellular network 207 to the message handler 204.

Abstract: A method and system for selectively applying a cellular-PBX integration service. When a radio access network (RAN) receives a call request seeking to set up a call for a cellular wireless communication device (WCD) that is operating in the coverage area of the RAN, a determination is made as to whether the WCD is currently checked-into a cellular-PBX integration service. A service control point (SCP), for instance, may make the determination. If the determination is that the WCD is currently checked-in, then the call is set up to an IP PBX server that services the WCD, and the IP PBX server may then handle the call as it would handle a call placed to any IP PBX extension. Further, differential billing can be applied, charging an enterprise billing-account for the call if the WCD is checked-in, and charging a WCD billing-account for the call if the WCD is not checked-in.

Abstract: A method and system for selectively applying a cellular-PBX integration service. When a radio access network (RAN) receives a call request for a served wireless communication device (WCD), call setup signaling passes to a call session control function (CSCF), and a determination is made as to whether the WCD is currently checked-into or checked-out of the cellular-PBX integration service. If the WCD is checked-in, the call is set up to an IPPBX server for handling. If the WCD is checked-out, the call is set up back to the RAN for handling. Similarly, the CSCF may receive call setup signaling in response to a call dialed to an IPPBX extension associated with the WCD, and the check-in/check-out status of the WCD may be used as a basis to decide whether to send the call to the RAN for handling or whether to return the call to the IPPBX server for handling.

Abstract: The present invention provides a telecommunication system, a mobile phone and a calling method adapted for the telecommunication system. The telecommunication system includes a mobile phone connected to a wireless network and a wired phone connected to a wired network. The mobile phone and the wired phone communicate each other within a predetermined coverage area. When there is not a wired phone within the predetermined coverage area or there is a wired phone within the predetermined coverage area and the current state of the wired phone is busy, the mobile phone makes a call via the wireless network. If there is a wired phone within the predetermined coverage area and the current state of the wired phone is idle, the mobile phone sends a phone number to the wired phone, and the wired phone makes the call via the wired network.

Abstract: Mobile terminals (2) for transmitting first signaling signals (11) according to first wireless technologies to first networks (3) and for transmitting second signaling signals (12) according to second wireless technologies to second networks (4), which first signaling signals (11) comprise first information for informing the first networks (3), which second signaling signals (12) comprise second information for informing the second networks (4), and which first and second wireless technologies are different from each other, get a better efficiency by letting the first signaling signals (11) comprise the first information and the second information. This way, the power consumption of the mobile terminals (2) is reduced and the signaling efficiency is increased. The first/second information comprises first/second location information and/or comprises first/second paging-response information.

Abstract: A communications system includes a first wireless communications system configured to provide wireless communications over a first frequency band, and a second wireless communications system configured to provide wireless communications using at least a portion of the first frequency band. The system includes an inter-system communications link between the first wireless communications system and the second wireless communications system. The inter-system communications link is used to coordinate the use of the first frequency band. The system further includes an interference reducer configured to reduce interference between the first wireless communications system and the second wireless communications system. Related methods are also disclosed.

Abstract: This document describes tools capable of differentiating a superset of entities from which a user may receive current updates effective to provide current updates for only some of the entities of the superset. In one embodiment, for example, the tools enable a user of a mobile device to select a set of entities from which the user will automatically receive updates that are current, easily accessible, and visible at-a-glance. The tools may forgo providing current updates for entities that are not selected by the user, though the tools may provide these updates when explicitly requested by the user or at particular times or events.

Abstract: A system and method for providing PBX-like functionality at a remote office location includes the capability of maintaining a network session with a mobile number associated with the remote worker once the worker terminates the remote office session. The system utilizes a remote office platform interposed between a data communications network and a conventional PBX switch (located either at a subscriber-based office location or within the communication network and shared by a number of different subscribers). A remotely located individual (such as a telecommuter) “logs in” to the remote office platform and, once the individual is authenticated, a graphical user interface (GUI) emulating a PBX station set is enabled at the remote employee's personal computer, the GUI including a field for entry of the user's mobile number.

Abstract: The present invention discloses a distributed base station system as well as its networking method and base band unit. In this system, the base band unit (BBU) and RF unit (RFU) of the base station are separated, and the RFU is equipped with base band RF interfaces for interconnecting the BBU and transmitting data information, thereby forming the base station. Based on the separation of the BBU from the RFU, the BBU capacity is further divided at the same time, and every unit is also arranged independently. The BBU networking and capacity expansion may be achieved with capacity expansion interfaces and base band RF interfaces provided by BBU interface units in flexible and convenient ways.

Abstract: An application container-level transaction management system for managing transactions of an application on a wireless device. The system comprises a transaction manager for providing an interface to the application container for accessing methods for creation and execution of transactions in a hierarchical order. The transactions comprising correlative operations. The system further comprises a transaction stack for storing the transactions to be executed in an execution order according to the hierarchical order, the order of execution providing for at least one of rollback and completion of the correlative operations.

Abstract: A wireless communication link is established between a mobile station and a landline station, independently of the landline and wireless telecommunications networks. The mobile station, while engaged in a call via a wireless telecommunications network, may wirelessly transmit a bridging signal to a transceiver, in order to include the landline station in the call independently of the landline telecommunications network. While the landline station is engaged in a call via the landline telecommunications network, the transceiver may wirelessly transmit a bridging signal to the mobile station, in order to include the mobile station in the call independently of the wireless telecommunications network.

Abstract: There is an antenna, three feed ports, two switches, and two impedances. In an embodiment, the first and second feed ports interface respective FM transmitter and FM receiver, and the third feed port interfaces Bluetooth, WLAN and/or GPS radios. The two switches are disposed along the antenna. A first throw of them renders a balanced mode for the antenna seen by the first feed port and a second throw renders an unbalanced mode for the antenna seen by the second feed port. The two impedances are disposed and configured such that the antenna, for signals in a second frequency band at the third feed port and which are impeded by the two impedances, is an unbalanced mode for the first throw of the switches and is an unbalanced mode for the second throw of the switches. Also detailed is a method for making an electronic device having such an antenna.

Abstract: A system of wireless electronic devices for construction equipment and a maintenance system thereof are disclosed, in which various information used in an input and output unit, like modules of a construction work vehicle such as a hydraulic excavator, etc., are transmitted and received based on a wireless method, so that the use of wires can be significantly decreased. The wireless electronic system of a construction machine comprises at least one control panel which transmits a wireless signal for controlling each part of a construction machine in accordance with an operator's control; a main control device which receives a wireless signal from the control panel and transmits a wireless control signal for controlling a corresponding device; at least one auxiliary control device which performs input and output control, operation control, error detection, automatic control, etc.

Abstract: A system for interfacing with an audio player comprises a housing (110, 410) containing a first connector (111, 411), a transmission device (120, 420) including a second connector (121, 421) capable of removable engagement with the first connector, a power interface (130, 430) electrically coupled to the housing, and an audio interface (140, 440) electrically coupled to the housing and capable of being coupled to the audio player. The transmission device is connectable both to the housing and to the audio player directly, and is capable of transmitting an audio signal generated by the audio player to a playback device such as a radio.

Abstract: The present invention is directed to a telephony communication interface device. The device includes a communication transceiver configured to communicate with a remote system via a predetermined communication channel. A control circuit is coupled to the communication transceiver. The control circuit is configured to determine a device operating mode status based on communication transceiver activity. The device operating mode status includes a telephonic communications mode and a remote system communications mode. An interface circuit is coupled to at least one telephone set. The interface circuit is configured to propagate voice telephony signals between the at least one telephone set and a telephony network in a telephonic communications mode and propagate voice intercom signals between the at least one telephone set and the communication transceiver in the remote system communications mode.

Abstract: A cellular mobile radio network having at least one base station integrated into a facility supplied via a power supply network and being connected to an assigned base station controller. The at least one base station includes a module for exchanging radio frequency signals with mobile radio devices; a first transceiver module configured to couple the at least one base station to the power supply network; and a control device configured to control the facility. The control device is connected to the facility via the power supply network or directly, and includes an identification module and a module for communicating with a central unit, the control device being identifiable by the central unit based on the identification module.

Abstract: The present invention provides a dynamic real-time quality management of packetized communications in a network environment. Packetized communications are monitored by and exchanged between wireless Access Points (APs) and wireless terminals or by quality monitoring modules located within network segments or at network vertices. The processing unit analyzes the packetized communications to identify communication signatures associated with the packetized communications. The processor then uses these signatures to identify network impediments to the exchange of the packetized communications. These impediments may take the form of coding problems in which case an appropriate coding scheme is employed by the programmable COder/DECoder (CODEC) to convert incoming packetized communications to incoming user communications, and outgoing user communications to outgoing packetized communications. These impediments may also take the form of communication problems along and between the various network segments.

Abstract: The present invention is directed at systems and methods for gathering wireless communication data within a target geographic area. More specifically, selected fleet vehicles are equipped to gather wireless communication data from transmission towers while simultaneously performing other tasks. A signal testing device gathers the signal data while temporarily positioned in a selected fleet vehicle that passes within a target geographic area. The signal testing device is then transferred to other fleet vehicles that also traverse the target geographic area until the desired data from the identified area is collected.

Abstract: A wireless communication which suppresses radio interference between wireless base stations and improves the channel efficiency is implemented. In the wireless communication system including a central base station, a plurality of remote base stations having a direction-variable antenna, and a plurality of mobile stations to communicate with the remote base stations, the central base station performs centralized management of radio-wave beam patterns to be sent to the plurality of mobile stations which will communicate with remote base stations and performs packet scheduling of the mobile stations in such a manner that radio waves sent from the remote base stations will not cause strong interference at the mobile stations.

Abstract: A hybrid wired and wireless communication device and a wired and wireless communication method thereof. The wired and wireless communication method includes determining whether a wired communication module has been linked to a wired communication network, setting a wireless communication operating mode of a wireless communication module to an infrastructure mode when it is determined that the wired communication module has not been linked to the wired communication network, and setting the wireless communication operating mode to an ad-hoc mode when it is determined that the wired communication module has been linked to the wired communication network. Therefore, the wireless communication operating mode is automatically set according to whether the wired communication network has been linked to the wired communication module, thereby increasing a user's convenience.

Abstract: A communications system includes a first wireless communications system configured to provide wireless communications over a first frequency band, and a second wireless communications system configured to provide wireless communications using at least a portion of the first frequency band. The system includes an inter-system communications link between the first wireless communications system and the second wireless communications system. The inters-system communications link is used to coordinate the use of the first frequency band. The system further includes an interference reducer configured to reduce interference between the first wireless communications system and the second wireless communications system. Related methods are also disclosed.

Abstract: A telecommunication system has a multiplicity of clients each with a multiplicity of subscribers connected by an access device to a long-distance network with a telecommunication apparatus for exchange (PDX). According to the invention between that network and the access device a wireless stretch is formed which can include a satellite link, a UMTS link, a WLAM link or WMAN link.

Abstract: A distributed radio system is disclosed. Transmit and receive packets of data are transported over a relatively high-speed multiplexed network, which in one embodiment may be an Ethernet network. The distributed radio system comprises in one embodiment a centrally-located network-level processing unit connected via network connections to one or more intermediate-level processing units. The intermediate-level processing units may be distributed throughout the coverage area. The processing units perform digital signal processing, as well as higher level processing such as signal routing, speech transcoding and proper interfacing to external environments, such as a macrocellular environment. Radio elements are provided that are accurately timed or synchronized, such that the radio elements have their own time base to ensure proper transmission, even when unpredictable network delays occur.

Abstract: An active call handover arrangement for managing a handover between a plurality of telecommunication devices associated with a public extension number is provided. The arrangement includes a mobility server configured to manage a telecommunication session between a telecommunication device of a third-party caller and a first telecommunication device of the plurality of telecommunication devices. The arrangement also includes a switch component configured to be associated with at least one telecommunication device of the plurality of telecommunication devices. At least one telecommunication device is configured to include mobility client software. The switch component is also configured to enable a user to perform the handover between the first telecommunication device and a second telecommunication device of the plurality of telecommunication devices.

Abstract: The present invention is directed to devices and methods that provide a user of a decentralized asynchronous parallel-configured wireless communication system for voice, data and live digital video streaming communication with the ability to select various communication paths and calling bandwidths as needed. The system uses a novel Time-Shared Full Duplex (TSFD) protocol for communications. The TSFD protocol allows the transmission of live digital video signals from one wireless device to another wireless device. The system provides local communication as well as optional links to external networks, and does not require a synchronous centralized switching center. It further provides secure operation, emergency notification and a way to collect revenue from the system, and allows for control of the operational state of the internal network and optional remote control of the operational state control of systems external to the network.

Abstract: A wireless interoffice facility (IOF) is provided by a microwave network that overlays a public switched telephone network. The wireless IOF may be used by a carrier or other service provider to obtain needed bandwidth where the PSTN does not have sufficient capacity, the available capacity is too expensive, redundancy is needed or it is desirable to provide services that are alternative to or complementary with those provided by other common carriers. The wireless IOF may also be used to provide inter-LATA or interstate service without the need for an inter-exchange carrier.

Abstract: A power control method in a wireless access node communicable with a plurality of wireless terminals in a wireless LAN system. Upon request for initial communication from a wireless terminal, the wireless access node transmits a power report request message to the plurality of wireless terminals and determines its transmit power based on a power report signal requesting the highest power among power report signals received from connected wireless terminals. The wireless access node communicates with the connected wireless terminals using the determined transmit power.

Abstract: A wireless LAN system includes at least one LAN terminal wirelessly connected to a plurality of base stations, at least one IP terminal connected to an IP network, and a diversity device connected to the IP network and that relays packet transmission between the LAN terminal and the IP terminal via the IP network. The LAN terminal sequentially establishes association with a predetermined number of the base stations, and a plurality of data is transmitted parallelly via the predetermined number of the base stations, between the LAN terminal and the diversity device. At the receiving end, one of the plurality of data is selected and output.

Abstract: A method, system, and apparatus for initiating a communication between a fixed wireless device and a network entity. A wireless local loop hub or other fixed wireless device upon being reconnected to fixed-position power, will determine if fixed-position power was disconnected for a time-duration exceeding a time-threshold, and if so, responsively initiating a communication with a network entity in order to communicate information regarding the wireless local loop hub or other fixed wireless device.

Abstract: The invention enables a reliable end-to-end monitoring system by means of which the location of containers and other conditions related to the containers can be continuously or almost continuously monitored. The containers are equipped with such container units that are capable to co-operate with each other, which is especially needed in challenging radio environments. The co-operation of the container units is based on mesh network algorithms. Each container unit placed in a container includes a short range radio and a cellular network radio. Thus, the container unit is able to connect to two different types of communication networks. In addition, each container unit uses a certain connection set-up logic. When a set-up attempt results in a connection, the container transmits its message through the connection. The invention comprises the container unit, a mesh network composed of container units, and a system reporting container events.

Abstract: A communications network is provided. The network preferably includes a Voice over Internet Protocol (VoIP) wired network and a mobile phone. The mobile phone preferably includes a first radio control code for communicating with a wireless mobile phone network and a second radio control code for communicating over the VoIP network. The mobile phone includes a speaker and a microphone. The network may operate in a state of communication such that the microphone of the mobile phone is operational to receive audio signals and transmit the audio signals over the VoIP and the speaker of the mobile phone is non-operational.

Abstract: One piece type or integrated wireless local loop (WLL) terminal has a speaker, a microphone, and a built-in or integrated USB (Universal Serial Bus) and USB driver in the terminal. The WLL terminal is capable of being used with a charger that has connectors for connecting the USB line driver and the USB of the terminal with an external device, such as a personal computer.

Abstract: A system and method are disclosed for operating a telephone to bypass wireline telephone service. A system that incorporates teachings of the present disclosure may include, for example, a housing component at least partially defining a first and a second enclosure. The housing component may be part of a Local Exchange Carrier Network Interface Device. In such an embodiment, the first enclosure may represent a service provider access portion, and the second enclosure may represent a customer access portion. The system may also include a door coupled to the housing component. The door may be capable of being releasably secured in a closed position such that the door defines a portion of the first enclosure. A cradle system formed to receive a wireless transceiving device may be secured within the first enclosure in a manner allowing the door to be releasably secured in the closed position.

Abstract: A system, wherein a mobile station can switch to an IP access protocol, whereupon data transmitted between the mobile station and a mobile services switching centre change over from a base station system, reached using radio communication, to being transmitted through an interworking unit (40) coupled in connection with an IP connection and the mobile services switching centre. When the mobile station switches to the access network, it transfers the dynamic data relating to the mobile station's state and the calls in progress (state machine) to the interworking unit.

Abstract: A data transmitter includes (a) first communication means performing data transmission according to IrDA Standard, (b) second communication means performing data transmission that does not comply with the IrDA Standard and (c) means for switching between a process performed by the first communication means and a process performed by the second communication means. The second communication means includes (a) management information transmitting means for sending management information for managing transmission target data according to a data transmission prosecution command from a user, (b) communication capability information receiver means for receiving communication capability information indicating communication capability of a device that has responded to the transmission of the management information and (c) data transmission means for transmitting a packet including the transmission target data on the basis of the communication capability information.

Abstract: A system that provides a wireless broadband connection between base stations and customer sites is described. The system includes indoor units within the base stations and customer sites and communicate across cables to outdoor units. The indoor units link to routers, switches and other devices and services. The outdoor units transmit and receive wireless data and send it to the indoor units. The indoor units control the timing of detector measurements in the outdoor unit by transmitting a regular, repeating control message at a predetermined time. Once the outdoor unit receives the control message, it samples its detectors and reports measurements back to the indoor unit.