CN104641721A - An apparatus and associated methods - Google Patents

Abstract

A radio shield attachment for a portable radio communications device. The radio shield attachment is configured to shield radio communications emanating from the portable radio communications device at a radio frequency band of the portable radio communications device. The radio shield attachment comprises an inwards wireless radio coupler, an outwards wireless radio antenna and a radio frequency converter. The inwards wireless radio coupler is configured to wirelessly communicate locally with the portable radio communications device at the shielded radio frequency band of the portable radio communications device. The outwards wireless radio antenna is configured to wirelessly communicate remotely at a second different radio frequency band. The radio frequency converter is configured to convert radio communications between the shielded radio frequency band and the second different radio frequency band to allow for remote radio communications to and from the portable radio communications device to be received and transmitted at the second different radio frequency band.

Description

Apparatus and associated method

technical field

The present invention relates to the field of radio communications, to associated methods, computer programs and apparatus. Certain disclosed methods/examples relate to portable electronic devices, particularly so-called hand-portable electronic devices that can be used by hand (although they may be placed in a stand in use). Such portable electronic devices include so-called Personal Digital Assistants (PDAs), mobile phones, smartphones and other smart devices, and tablet PCs.

Portable electronic devices/apparatus according to disclosed aspects/examples may provide one or more of: communication such as telephony, video communication and/or text transmission (Short Message Service (SMS)/Multimedia Message Service (MMS) audio/text/video communication functions/email functions); interactive/non-interactive viewing functions (such as web browsing, navigation, TV/program viewing functions; such as MP3 or other formats, FM/AM radio broadcast recording/playback Music recording/playback functionality; data download/sending functionality; image capture functionality (for example, using a digital camera); and gaming functionality.

Background technique

Many portable electronic devices are capable of radio communication. A device is capable of transmitting and receiving radio communications using one or more frequency bands. Therefore, the device is particularly suitable for use in one or more frequency bands.

The listing and discussion of a previously disclosed document or any background art in this specification is not necessarily to be understood as an acknowledgment that the document or background art forms part of the prior art or is common general knowledge. One or more aspects/examples of the present disclosure may address one or more problems of the background art.

Contents of the invention

In a first aspect, a radio shield accessory for a portable radio communication device is provided. The radio shielding accessory is configured to shield radio communications originating from the radio communication device on a radio frequency band of the radio communication device. The radio shield accessory includes an inward wireless coupler, an outward wireless antenna and a radio frequency converter:

an inwardly wireless radio coupler configured to wirelessly communicate locally with said portable radio communication device over a shielded radio frequency band of said portable radio communication device,

the outwardly wireless radio antenna is configured for long-range wireless communication on a second different radio frequency band, and

the radio frequency converter is configured to convert radio communications between the shielded radio frequency band and the second different radio frequency band to allow long-range radio communications to and from the portable radio communications device is received and transmitted on said second different radio frequency band.

If a particular device is not configured/manufactured to use a different radio frequency band, it may not be possible to use the device in that particular different radio frequency band. One or more frequency bands may be available after devices have been manufactured to operate in other frequency bands. If it was not originally manufactured to use these newly available frequency bands, the device may not be able to use them. For example, a new white space may be enabled for use in a particular area, or may be made available for a particular device if it moves from one location to another.

There may be restrictions on public use of certain frequency bands for radio communications. For example, in a particular region, one or more frequency bands may be reserved for emergency services communications (police, ambulance, fire services), while the general public is not allowed to use these frequency bands. Specific frequency bands that are used by the general public and by specific communication operators with licenses to operate may also be dedicated to different countries.

A radio shield accessory as disclosed herein allows a device to be easily converted for use with a frequency band that the device was not originally manufactured for use with. The inwardly wireless radio coupler allows the device to receive communications at frequencies with which it was not originally designed to be used by passing the converted receive signal from the radio frequency converter of the radio shield accessory to the device. The outwardly wireless radio antenna allows This device transmits communications on a frequency for which it was not designed for use.

The radio shield accessory is thus capable of disabling the device from transmitting communications on locally prohibited frequencies by shielding such transmissions and converting communications on the prohibited frequencies to permitted frequencies for further transmission. Thus, the radio shield accessory allows easy conversion of existing equipment for use with different frequency bands and prevents illegal transmission.

The second different radio frequency band may be at least partially different from the shielded radio frequency band. For example, two different frequency bands may share some frequencies, but each frequency band may also include frequencies not covered by the other frequency band.

In further aspects, an apparatus including a radio shield accessory and a portable radio communication device are provided.

The radio shield accessory may be one of the following:

a patch configured to be attached to an external cover of the portable radio communication device,

a replacement external cover for said portable radio communication device, and

An additional external cover is configured to attach to and overlay an existing external cover of the portable radio communications device.

The radio shield accessory can be easily attached/removed from the device and may not require any modifications to the hardware/software of the device to be manufactured. No physical wiring connection is required between the accessory and the device, as in some embodiments, communication between the accessory and the device occurs via wireless coupling. The accessory/patch may for example be attached using an adhesive (which may be a non-permanent adhesive to allow the patch/accessory to be removed if desired).

The inwardly wireless radio coupler and outwardly wireless radio antenna may share part or all of the same radio frequency transceiver to operate on a shielded radio frequency band and a second different radio frequency band. In some examples, the inwardly wireless radio coupler and outwardly wireless radio antenna may be included in the same transceiver configured to operate in both directions. The inwardly wireless radio coupler and outwardly wireless radio antenna may share at least one of: a processor, a modulator, circuitry, and a power supply. The inwardly wireless radio coupler may be considered capable of near-field communication, while the outwardly wireless radio antenna may be considered capable of far-field communication.

The radio shielding accessory may be configured to shield the radio communications originating from the portable radio communications device by including: a first layer of electromagnetic shielding material configured to inhibit communications from the portable radio communications device in the shielded radio communication in the frequency band. The radio shielding accessory may be configured to shield the radio communications originating from the portable radio communications device by including: a second layer of radio frequency absorbing material positioned above the layer of electromagnetic shielding material. The second layer of radio frequency absorbing material and the first layer of electromagnetic shielding material are jointly configured to inhibit radio communications from the portable radio communications device on the shielded frequency band. The layer of electromagnetic shielding material is located between the portable radio communication device and the layer of radio frequency absorbing material when the radio shielding accessory is operatively positioned with the portable radio communication device.

The first layer of electromagnetic shielding material may have a thickness between 0.01 mm and 2 mm. The first layer of electromagnetic shielding material may comprise one or more of the following: metal foil, flexible metal mesh/grid, and metal powder distributed within rubber. Different metals and/or metal loaded compounds may be used. The electromagnetic shielding material may be flexible to facilitate mating with/on/removal from the device while providing shielding properties.

The second layer of radio frequency absorbing material may have a thickness between 0.01mm and 10mm. The second layer of radio frequency absorbing material may comprise energy absorbing foam. The radio frequency absorbing material may be flexible to allow easy attachment/removal from the device while providing radio frequency absorbing properties.

The radio shielding accessory may be configured to shield the radio communication originating from the portable radio communication device by further comprising: a low loss material located on the inward wireless radio coupler and the outward facing radio coupler of the radio shielding accessory the vicinity of at least one of the external wireless radio antennas to inhibit radio communications originating from the portable radio communications device on the shielded frequency band. The low loss material may have a thickness between 0.5mm and 5mm.

The radio shielding accessory may be configured to shield the radio communications originating from the portable radio communications device by including: a transparent electromagnetic shielding material configured to be positioned over the display screen of the portable radio communications device to inhibit Radio communications originating from the portable radio communications device on the shielded frequency band. The transparent electromagnetic shielding material may include one or more of the following: metal mesh, silver mesh, and transparent absorbent plastic.

The radio shielded accessory may be configured to operate on the shielded radio frequency band and the second different radio frequency band via one or more of the following categories of radio communications:

cellular network communications;

Bluetooth;

wireless local area network (WLAN);

Global Positioning System (GPS) communications;

Global System for Mobile Communications (GSM);

White space (WS) communication;

Wideband Code Division Multiple Access (WCDMA);

Time Division Synchronous Code Division Multiple Access (TD-SCDMA);

Code Division Multiple Access 2000 (CDMA2000);

Frequency modulation (FM) radio communications;

Near Field Communication (NFC);

Digital Video Broadcasting Handheld (DVB-H);

Long Term Evolution (LTE) Time Division Duplex (TDD); and

Long Term Evolution (LTE) Frequency Division Duplex (FDD).

The radio shielded accessory may be configured to operate on the shielded radio frequency band and the second different frequency band within the same class of radio communications.

The radio shield accessory may include a battery configured to provide power to the radio shield accessory to power one or more of the transceiver, converter and shield. This advantageously allows the radio shield accessory to be used without the device's batteries by powering the accessory. The radio shield accessory is configured to be powered by an internal power supply for the portable radio communication device to provide power to the radio shield accessory to power one or more of the transceiver, converter and shield. This advantageously may allow the radio shield accessory to be manufactured without the need for a dedicated power supply/battery (but with appropriate wired/wireless connectors), which may allow for smaller, simpler, more flexible and/or less expensive appendix.

At least one of the inwardly wireless radio coupler and the outwardly wireless radio antenna of the radio shield accessory may comprise an antenna formed from at least one of a straight rod, a curved rod, a loop, and a plane. The accessory's transceiver/antenna can be shaped appropriately based on size and space constraints while allowing coupling to the device's antenna.

In a further aspect, there is provided a computer readable medium comprising computer program code stored thereon for a radio shield accessory for a portable radio communication device. The radio shielding accessory is configured to shield radio communications originating from the portable radio communication device on the radio frequency band of the portable radio communication device, the radio shielding accessory includes an inwardly wireless radio coupler, an outwardly wireless Radio antennas and radio frequency converters. When executed on at least one processor, the computer readable medium and computer program code for the radio shield accessory are configured to at least perform the following steps:

wirelessly communicating locally with the portable radio communication device on a shielded radio frequency band of the portable radio communication device via the inward wireless radio coupler;

long-range wireless communication on a second, different radio frequency band via the outwardly wireless antennae; and

Translating radio communications between the shielded radio frequency band and the second different radio frequency band via the radio frequency converter, the radio frequency converter thereby allowing long-range radio communication to and from the portable radio communication device Communications are received and transmitted on the second different radio frequency band.

In a further aspect, a method for operating a radio shield accessory for a portable radio communication device is provided. The radio shielding accessory is configured to shield radio communications originating from the portable radio communication device on a radio frequency band of the portable radio communication device. The radio shield accessory includes an inwardly wireless radio coupler, an outwardly wireless radio antenna, and a radio frequency converter. A method for operating a radio shield accessory for a portable radio communication device includes:

wirelessly communicating locally with the portable radio communication device on a shielded radio frequency band of the portable radio communication device via the inward wireless radio coupler;

long-range wireless communication on a second, different radio frequency band via the outwardly wireless antennae; and

Translating radio communications between the shielded radio frequency band and the second different radio frequency band via the radio frequency converter, the radio frequency converter thereby allowing long-range radio communication to and from the portable radio communication device Communications are received and transmitted on the second different radio frequency band.

In a further aspect, a radio shield accessory for a portable radio communication device is provided, the radio shield accessory being configured for radio communication originating from the portable radio communication device on a radio frequency band to the portable radio communication device be masked and include:

means for wirelessly communicating locally with the portable radio communication device on a shielded radio frequency band of the portable radio communication device;

means for long-range wireless communication over a second different radio frequency band; and

for switching radio communications between the shielded radio frequency band and the second, different radio frequency band, thereby allowing long-range radio communications to and from the portable radio communications device on the second, different radio frequency band Received and transmitted devices.

The present disclosure includes one or more corresponding aspects, examples or features alone or in various combinations whether or not specifically stated (including claimed) in that combination or in isolation. Corresponding devices and corresponding functional units (e.g., inward couplers, outward antennas, transceivers, radio frequency converters, shields, communicators, circuits, computer code and modules) are also within the scope of the present disclosure.

Corresponding computer programs for implementing one or more of the disclosed methods are also within the scope of the present disclosure and encompassed by one or more of the described examples.

The above summary is intended to be illustrative only and not limiting.

Description of drawings

The description is now given by way of example only with reference to the accompanying drawings, in which:

Figure 1a illustrates an example portable electronic device in communication with a remote end;

Figure 1 b illustrates a portable electronic device and an example radio shield accessory in communication with a remote end according to the present disclosure;

Figure 2 illustrates an illustrative example radio shield attachment according to the present disclosure;

3a-3b illustrate another example radio shield accessory and a portable electronic device showing the accessory region according to the present disclosure;

4a-4b illustrate another example radio shield accessory and a portable electronic device showing a transceiver of the accessory, according to the present disclosure;

5a-5b illustrate shield components of an example radio shield accessory according to the present disclosure;

6 illustrates another example radio shield accessory and a portable electronic device showing a device transceiver and an accessory transceiver, according to the present disclosure;

7 illustrates an example TDD circuit for a radio shield accessory according to the present disclosure;

8 illustrates an example FDD circuit for a radio shield accessory according to the present disclosure;

9a-9b illustrate other example radio shield accessories and portable electronic devices according to the present disclosure;

Figure 10 illustrates a flow diagram of a method according to the present disclosure; and

Fig. 11 schematically illustrates a computer-readable medium providing a program.

Detailed ways

Many portable electronic devices are capable of radio communication. In recent years, the number of devices capable of radio communication has increased dramatically, and such devices are being used more and more widely. A radio communication device may be capable of radio communication and reception of radio communication in one or more frequency bands. If a particular device is not configured/manufactured to use another frequency band, it may not work in that particular frequency band. 4G communication devices are becoming more common, and they require multiple LTE time slots (frequency bands) for reception and transmission. A 4G device may require access to up to 14 different time slots (frequency bands) to be able to be used around the world, and the time slots and frequency bands allowed vary in different locations.

After a communication device has been manufactured to operate in different frequency bands, one or more frequency bands may be made available for use. Communication devices may not be able to use these newly available frequency bands if they were not originally manufactured to use them. For example, "new" frequency bands that may be made available include vacant television bands, satellite bands, white space bands, or cognitive radio policy bands. If a particular communication device is moved from one location to another where a different frequency band is available, such as when the device is moved to another country where operators use a different frequency band than the original country, the "new" frequency band becomes available. The device is used. For example, it may be the case when using white space frequencies for radio communication, where different frequency bands become available depending on the location of the communication device and which white space bands have been put into use.

Local regulations may prohibit the use of certain frequency bands for communications, and therefore there may be restrictions on the public use of certain frequency bands for radio communications. For example, in a particular region, one or more frequency bands may be reserved for use by emergency services communications (police, ambulance, fire services), or by other services/industries such as railways, oil exploration and transportation systems. These frequency bands used by certain services/industries may not be permitted for use by the general public.

Also, it may be desirable for an available communication device to be easily converted for use with a particular frequency band (eg, a police radio band), even if the communication device was not originally designed/manufactured for use. In this way, for example, a police officer may use a mobile phone that is not originally configured to use police radio bands with those police radio bands.

Also, in some emergency or remote sensor situations, it may be desirable to use in lower frequency bands (such as 700MHz or 400MHz) for use in higher frequency bands (such as 2.4GHz Wi-Fi, 2.4GHz Bluetooth, 2.4GHz Zigbee, and 1.8GHz GSM) Communication equipment, which can allow the communication distance to be extended.

It would be advantageous to be able to enable a communication device intended to operate in one or more specific frequency bands to now operate in one or more other frequency bands. Additionally, it would be advantageous to be able to prevent devices from communicating in one or more specific "forbidden" frequency bands.

It would be advantageous to be able to change the frequency band in which a communication device is capable of operating without requiring significant or substantial changes or modifications to the device's RF components, hardware and/or software. Additionally, it would be advantageous if such changes to the operating frequency band of the device were easily reversible. For example, existing or "legacy" equipment is converted to operate under new conditions (that is, using frequency bands different from those for which the equipment was originally intended) Changes in hardware or software may be advantageous.

One or more of the following examples may be considered to provide solutions to the problems described above.

FIG. 1 a shows a network 100 comprising a portable radio communication device 102 and two remotes 106 , 110 . In this example, device 102 does not have a radio shield attachment. Device 102 is capable of communicating with first remote 106 in first frequency band 108 and with second remote 110 in second frequency band 112 . The first frequency band may be, for example, GSM 800 frequency band and the second frequency band may be, for example, Wi-Fi 2.4GHz frequency band.

FIG. 1 b shows a different network 150 comprising the same portable communication device 102 within a radio shielding enclosure (eg cover) 152 , and three remote ends 106 , 110 , 160 . As in FIG. 1 , device 102 is capable of communicating with first remote 106 in first frequency band 108 .

Different from network 100 , in network 150 of FIG. 1 b , device 102 is prohibited from using second frequency band 112 to communicate with remote end 110 . The second frequency band 112 may eg be reserved for use by the local police, or it may be a white space reserved for other users. Under no circumstances should the device 102 use the second frequency band 112 for external telecommunication, even if the device 102 is configured to operate using the second frequency band 112 .

Also, unlike the network 100, in the network 150 of FIG. 1 b, there is a third remote end 106 available, with which a third frequency band 162 can be used for communication. However, device 102 is not configured to be able to use third frequency band 162 alone.

Accordingly, the device 102 in FIG. 1 b is equipped with a radio shield attachment 152 , which is shown schematically around the exterior of the device 102 . The radio shield accessory 152 for the portable radio communication device 102 is configured to shield radio communications originating from the portable radio communication device 102 on the radio frequency band of the portable radio communication device, in this case the radio The frequency band is the prohibited second frequency band 112 .

As discussed in more detail subsequently, the radio shield attachment 152 includes an inwardly wireless radio coupler, an outwardly wireless radio antenna, and a radio frequency converter. Component 154 of accessory 152 is shown schematically illustrating band switching and radio communication shielding.

Thus, even though device 102 cannot receive radio communications from and transmit radio communications to third remote end 160 alone because it is not itself configured to operate using third frequency band 152 of third remote end 160, the radio Shielding attachment 152 can allow device 102 to effectively behave as if it is capable of receiving radio communications from and transmitting radio communications to third remote end 160 . The accessory 152 also acts as a radio shield preventing radio communications on the prohibited second frequency band 112 from being transmitted remotely.

Due to the radio frequency converter of the accessory 152 and the inwardly wireless radio coupler, the accessory 152 can locally communicate wirelessly with the portable radio communication device 102 in the second radio frequency band 112 in which the portable radio communication device 102 is shielded. Accordingly, accessory 152 is able to convert radio communications from third remote end 160 between received third frequency band 162 and second radio frequency band 112 in which device 102 is shielded, and transmit them locally to the device. In this manner, device 102 is able to receive communications from far end 160 using frequency band 162 that it cannot receive alone (without radio shield attachment 152).

Thanks to the radio frequency converter and outwardly wireless radio antenna, the accessory 152 can allow the device 102 to communicate remotely with the third remote 160 using the third radio frequency band 162 . Accordingly, accessory 152 is able to switch radio communications between shielded second radio frequency band 112 and third radio frequency band 162 and transmit them locally from device 102 to accessory 152 enabling accessory 152 to use third radio frequency band 162 The radio communication is transmitted to the third remote end 160 . In this manner, device 102 is able to transmit communications to far end 160 using frequency bands that it (without radio shield attachment 152 ) could not use to transmit alone.

The radio shielding accessory may also shield/prohibit radio communications originating or that may originate from the portable radio communication device 102 on the shielded frequency band 112, thereby preventing prohibited/prohibited radio communications on the second frequency band 112. Shielded transmission.

The radio shield accessory can be effectively used as a shield bubble around the portable radio communication device. Radio communications originating from the portable radio communication device on the radio frequency band of the portable radio communication device are shielded by the accessory by means of a bubble created by shielding (the radio frequency band of the device can be considered forbidden by the bubble mask frequency). However, even if it is shielded, the device is still capable of sending and receiving radio communications using the device's radio frequency band by using radio frequency conversion. This is because the inwardly wireless radio coupler allows radio communications received over the air that are not on the device frequency to pass through the "bubble ” to reach the device. Advantageously, near field wireless communication can be used. Also using a radio frequency converter, an outwardly wireless radio antenna allows radio communications from the device on the shielded device frequency to "bubble" into the air, but this time the conversion is from the shielded device frequency to a different frequency. The outwardly wireless radio antenna advantageously allows wireless far field communication.

Typically, the inwardly wireless radio coupler should be placed towards the inside of the radio shield accessory so that it can couple inwardly with the appropriate antenna of the device used with the accessory. The inwardly wireless radio coupler does not necessarily need to be placed inside the radio shield attachment. The inward coupler is involved in communication from the accessory inward to the device.

Transmissions from an outwardly wireless radio antenna should not be shielded by the radio shielding accessory, and the outwardly facing antenna can therefore be placed in an unshielded position, for example towards the outside of the radio shielding accessory. Similarly, it will be appreciated that the outwardly wireless radio antenna need not necessarily be placed on the outside of the radio shield attachment. The outward antenna relates to communications away from the device and out from the accessory into the air.

The inward coupler and/or outward antenna may be formed from surface layers or tracks, but for optimum long-term use, they will best be built within a layer or sub-layer of accessory material so that Performance degradation of the coupler/antenna due to material corrosion and/or user handling is minimized.

The radio shield accessory is capable of switching to and from different frequency bands on-line (ie in real time). Furthermore, frequency bands that are allowed and that the device itself is configured to operate with can still be used, such as the first frequency band 108 used to communicate with the first remote 106 .

Furthermore, since the radio shield accessory 152 switches frequency bands and prevents prohibited transmissions through wireless coupling to the device, substantially no modifications or changes to the device 102 itself are required. If the user of device 102 does not wish to switch any frequency bands or prevent transmissions on specific frequency bands, the radio shielding accessory may simply be removed from device 102, or may simply be turned off (e.g., when minimal shielding cover material is used and where signal suppression is used to prevent transmissions in masked frequency bands).

Also, it is contemplated that different radio shield accessories 152 may be adapted for use under different conditions (eg, in different locations). Thus, the ability to easily switch the frequencies that a device 102 can use can be achieved by simply changing the radio shield attachment 152 for that device according to particular conditions. Using different radio shield attachments 152 for different frequency conversion/shielding requirements may be an option, where each radio shield attachment 152 may be relatively easy and/or less expensive than a single radio shield attachment capable of performing all conversion/masking Manufactured as such (although a radio shield accessory capable of performing all conversion/shielding is also available). The examples described here allow the flexibility of different/all frequency conversion/masking options according to user requirements.

FIG. 2 schematically illustrates an example radio shield accessory 200 designed to be overlaid on an existing cover of a communication device, including a flexible coating 202, hardware circuitry 204 (which may include, for example, software components, a processor and/or or memory), a battery 206 connected to the hardware circuit, a radio coupler 210 for wireless inwards, and a radio antenna 212 for wireless outwards. The flexible coating 202 allows the user to drag the accessory 200 over their device for an easy attachment fit. Coating 202 may include non-flexible parts, such as metal shield components and/or battery 206 . In some examples, all components of accessory 200 including coating 202, hardware 204, and battery 206 may be flexible.

In other examples, the radio shield accessory 200 may be a patch configured to attach to an external cover of the portable radio communication device, or may be a replacement external cover of the portable radio communication device.

In the example of FIG. 2 , the radio shield accessory 200 includes a battery 206 configured to provide power to the radio shield accessory 200 to power one or more of the transceiver, converter, and shield. In other examples, the radio shield accessory may be configured to be powered by the portable radio communications device's internal power supply (rather than or in conjunction with the accessory's own battery) to provide power to the radio shield accessory while powering the transceiver, One or more of the converter and the shield provide power. It may be advantageous for the accessory to include a battery such that the battery/power supply of the device is not used/required to power the accessory.

In other cases, it may be advantageous for the accessory to be powered by the device's battery/power supply; for example, where there is no dedicated battery/power supply (but possibly an appropriate wired/wireless coupling to the device battery/power supply), The manufacture of the accessories will be easier and cheaper.

Figures 3a-3b illustrate the radio shield accessory cover 302 above the communication device 304 from the front (in Figure 3a) and the side (in Figure 3b).

Typical locations of the accessory's inward and outward radio transceivers are shown in the top region 306 , left and right regions 308 , 310 , and bottom region 312 of the radio shield accessory 302 . Such transceivers should be positioned to obtain good radiated communication reception from the air, allow good radiated communication transmission to the device, and minimize the Specific Absorption Rate (SAR).

4a-4b illustrate the radio shield accessory cover 402 above the communication device 404 from the front (in FIG. 4a ) and the side (in FIG. 4b ), showing the five antennas/transceivers of the radio shield accessory 402 .

In Figure 4a, the top region 406 shows the top (front) antenna 416, the left and right regions 408, 410 show the left and right antennas 418, 420 respectively, and the bottom region 412 shows the bottom Antenna 422. The rear antenna 430 and the top front antenna 416 are shown in the top region 406 of the radio shield attachment 402 as seen from the side view in FIG. 4 b.

In some examples, the inward radio frequency coupler and the outward radio frequency antenna may share some or all of the same radio frequency transceiver to operate in the shielded radio frequency band and a second different radio frequency band. That is. The inward radio frequency coupler and the outward radio frequency antenna may be the same component, or the inward radio frequency coupler and the outward radio frequency antenna may share some component or components. In some examples, the inward radio frequency coupler and outward radio frequency antenna may be the same transceiver. As shown in Figures 4a-4b, there may be more than one antenna/transceiver 416, 418, 420, 422, 430 in the radio shield attachment 402.

A shielded radio accessory as described herein may be configured to operate in a shielded radio frequency band and a second, different radio frequency band within the same radio communication category. For example, the device may itself be configured to operate in white space f ₁ , f ₂ and f ₃ , but in certain circumstances white space f ₄ may be available and white space f ₁ may be prohibited for the device. In this example, all four frequency bands f ₁ , f ₂ , f ₃ and f ₄ are blank frequencies. In other examples, different classes of communication bands may be accessed and/or barred.

Figures 5a and 5b schematically illustrate different layers that may be present in the cover portion/shield portion of a radio shield accessory of the present disclosure and which may act as radiation shields/absorbers.

Figure 5a shows a two-layer cover portion which may be used at least as part of a shield in a radio shield accessory as disclosed herein. Layer 502 is a first layer of electromagnetic shielding material and layer 504 is a second layer of radio frequency absorbing material. In other examples, only one layer, either the first layer of electromagnetic shielding material 502 or the second layer of radio frequency absorbing material 504, may be used in the radio shielding attachment. If only one layer of the type is used, it should be thicker than the combination of the first and second layers to achieve the same shielding performance. In one example, the first layer of electromagnetic shielding material may include magnesium aluminum alloy and the second radio frequency absorbing material may include metal particles. One or both of these layers may be considered to provide the shielding function of the radio shielding accessory.

Each layer 502, 504 included in the radio shield accessory may contribute to shielding radio communications originating from a portable radio communication device within/attached to the radio shield accessory. The first layer of electromagnetic shielding material 502 may be configured to shield/inhibit radio communications from the portable radio communications device on the shielded frequency band (ie, prevent signals from reaching the air). The second layer of radio frequency absorbing material 504 may be configured to inhibit radio communications from the portable radio communications device on the shielded frequency band. The radio shield accessory can be configured as a broadband shield to shield radio communications over a wide frequency range. The first layer of electromagnetic shielding material 502 or the second layer of radio frequency absorbing material 504 can reduce, and ideally prevent, radio communications from passing through the radio shield attachment from the portable radio communication device into the air.

In a two-layer cover portion, a second layer of radio frequency absorbing material 504 may be positioned over the first layer of electromagnetic shielding material 502 . The second layer of radio frequency absorbing material 504 and the first layer of electromagnetic shielding material 502 may collectively be configured to inhibit radio communications from the portable radio communications device on the shielded frequency band. The first layer of electromagnetic shielding material 502 may be located between the portable radio communication device and the second layer of radio frequency absorbing material 504 when the radio shielding accessory is operatively positioned with the portable radio communication device.

In a two-layer cover part as shown in Figure 5a, the first electromagnetic shielding material layer 502 may have a thickness between 0.1 mm and 0.5 mm; typically, it may have a thickness of 0.25 mm. The first layer of electromagnetic shielding material 502 may include one or more of: metal, flexible metal mesh, and metal powder distributed within rubber. The first layer of electromagnetic shielding material may be flexible to allow easy attachment of the radio shielding accessory to (eg over) the device.

In a two layer cover part as shown in Fig. 5a, the second radio frequency absorbing material layer 504 may have a thickness of between 0.5mm and 5mm; typically it may have a thickness of 2mm. The second layer of radio frequency absorbing material 504 may include energy absorbing foam. Like the first electromagnetic shielding layer, the second layer of radio frequency absorbing material may be flexible to allow easy attachment of the radio shielding accessory to/over the device. The radio frequency absorbing material 504 can serve several purposes. One effect is improved electromagnetic shielding against radiation originating from communication equipment. Another function is to absorb the power output from the power amplifier of the communication equipment within the radio shield enclosure in order to reduce any large power amplifier output mismatch which would otherwise cause damage to the final stage of the power amplifier. Radio frequency absorbing material 504 may also reduce electromagnetic compatibility (EMC) interference, such as electromagnetic interference to other nearby communication devices.

Figure 5b shows a three-layer cover part with an inwardly wireless radio coupler 510 that can be used at least as part of the shield in a radio shield accessory as disclosed herein. Layer 520 is a first layer of electromagnetic shielding material, layer 518 is a second layer of radio frequency absorbing material, and layer 516 is a layer of low loss material. Styrofoam can be used as low loss material. The low loss material is configured to insulate the inwardly wireless radio coupler 510 from the outwardly wireless radio antenna. One or more of these layers may be considered to provide the shielding function of the radio shielding accessory.

The coupler 510 can be metallic and when the radio shield accessory is operatively positioned with the communication device, it can be positioned proximate to the device's internal antenna/transceiver so as to establish a near field with the device's internal antenna/transceiver energy coupling. The shape of the coupler 510 can be a straight rod, a bent rod, a loop or a planar antenna. Obviously, coupler 510 may have another shape depending on the particular radio shield attachment and any space/shape constraints.

The low loss material 516 may be positioned proximate to at least one of the inwardly wireless radio coupler and the outwardly wireless radio antenna of the radio shield attachment. The low-loss material contributes to inhibiting radio communications originating from portable radio communications devices on shielded frequency bands.

In a radio shielded accessory having three layers 516, 518, 520 plus the cover portion of the inwardly wireless radio coupler 510 as shown in Figure 5b, the first layer of electromagnetic shielding material 520 may have The thickness between; generally, it may have a thickness of 0.25mm. The second layer of radio frequency absorbing material 518 may have a thickness between 0.5mm and 5mm; typically it may have a thickness of 3mm. The layer of low loss material 516 may have a thickness between 0.5mm and 5mm, typically it may have a thickness of 2mm. In a three layer plus coupler cover portion, the coupler 510 can be positioned as far as possible from any metal parts present in the cover portion to mitigate the generation/generation of high frequency bow waves. The coupler 510 may be mounted on three layers as shown in FIG. 5 b , or in other examples, on a low loss material 516 , or on an electromagnetic shielding material 518 .

The cover part shown in Figures 5a and 5b can be used to build in the radio shield attachment in different ways. One example is to form a radio shield accessory that covers the entire portable radio communication device. The three-layer cover section can be used near any internal antenna of the device. The two-layer cover section can be used elsewhere above the device. Electromagnetic shielding material may be located over the display of the device. In this example, the transparent electromagnetic shielding material of the accessory may be positioned over the display screen of the portable radio communication device, inhibiting radio communications originating from the portable radio communication device on the shielded frequency band. The transparent electromagnetic shielding material positioned over the display of the device may include one or more of the following: metal mesh, silver mesh, and transparent absorbent plastic.

Another example is to form a radio shield attachment that covers the entire portable radio communication device except for the display screen of the device. The three-layer cover section can be used near any internal antenna of the device. The two-layer cover part can be used above the device, except above the display screen. Any display screen of the device may not be retained with any cover portion/shield. In this case, the display is not electromagnetically shielded like other areas of the device, but the radio-shielding accessory is still operable. In any case, a reduced level of radio communication is emitted from the display.

Another example is to form a radio shield attachment that covers the area of the device that contains the antenna/transceiver. In this case, the triple-layer cover portion can be used to cover any internal antenna of the device, while other areas of the device not housing the antenna/transceiver can remain covered without the radio shield attachment.

Another example is to form a radio shielding accessory that does not include an electromagnetic shielding layer but includes a layer of radio frequency absorbing material. Such a radio shielding accessory may be located, for example, over the entire device, over the entire device except for the display screen, or over the area within the device that houses the antenna/transceiver. Without the use of electromagnetic shielding, the radio shielded accessory's inwardly wireless radio coupler should be configured to output a stronger signal locally to the device than any signal received from the remote base station or access point.

With the example above, the equipment is less covered by the radio shield accessory. Signal overlap effects exist between the signal transmitted from the shielded radio enclosure to the device and the signal transmitted to the device from any remote base station or access point. These two types of signals may be at a common frequency, but from different sources. Therefore, the signals may interfere with each other, which is undesirable. As the equipment is less covered by the radio shield, the level of overlap between the signals from the two sources increases, which in turn degrades the performance of the radio shield. Furthermore, the power consumption caused by the radio shield attachment is increased and the requirements for suppressing the signal are increased. In examples where less shielding material is present, the radio communication signal from the radio shielded accessory should be stronger than any "leakage" signal from the original far end, so the device should be "forced" to communicate with the accessory.

FIG. 6 illustrates a portable radio communication device 604 having a display screen 606 contained within a cover 602 of a radio shield accessory. Device 604 has an internal antenna/transceiver 608 . This is shown as coupler 610 coupled to radio shield attachment 602 . Similar to Fig. 5b, the layers of the radio shield accessory cover 602 are shown. Proximate to the antenna 608 of the device 604 and proximate to the coupler 610 is a layer of low loss material 616 . A layer of radio frequency absorbing material 618 is shown adjacent to the low loss layer 616 . Electromagnetic shielding layer 620 is adjacent radio frequency absorbing layer 618 on the exterior of accessory 602 . By positioning the layers 616 , 618 , 620 from the coupler 610 to the outer surface of the cover 602 and positioning the feed member 612 coupled to the coupler 610 of the cover 602 in the small hole 614 . Small hole 614 may be filled with a low loss insulating material (which may be similar to the material used for low loss material layer 616 ).

Figure 7 schematically illustrates a circuit that may be used for frequency conversion using frequency division duplexing (FDD) according to an example of a radio shield accessory described herein. For frequency conversion via FDD, as shown in Figure 7, the radio shield accessory may include two antenna/transceivers 702, 728 and frequency conversion circuitry. Antenna 702 may be considered an outwardly wireless radio antenna, and coupler 728 may be considered an inwardly wireless radio coupler/"antenna" (in some examples, comprising a radio such as feed 612 and coupler 610 of FIG. components), and the circuit in between can be thought of as a radio frequency converter.

In FIG. 7, an antenna 702 is coupled to a first duplexer 704, which in turn is coupled on the receiver side to a low noise amplifier (LNA) 706, a first automatic gain control (AGC) 708, a first Mixer 710 , adjustable amplifier 712 , then coupled to second duplexer 726 . The second duplexer 726 is coupled to a coupler 728 for transmission to the device and to an adjustable attenuator 724 on the transmitter side. The adjustable attenuator 724 is in turn connected to the second AGC 722, the second mixer 720, the third AGC 718 and the power amplifier 716, which is in turn coupled to the first duplexer 704. A combiner 714 is coupled to first and second mixers 710, 720 between the receiver and transmitter sides of the circuit.

A wireless energy coupling 736 exists between a) the circuit connection between the second duplexer 726 and b) the adjustable attenuator 724 . Wireless energy coupling 736 is coupled to energy detector 730 which in turn is coupled to controller 732 which is coupled to switching power supply control 734 .

The primary role of the energy detector 730 and controller 732 circuit branches is to reduce power consumption and extend the life of the batteries that power the circuits in the radio shield accessory. The transmitter branch of the circuit need only be turned on when the energy detector 730 detects that the circuit is transmitting a signal. An adjustable amplifier 712 on the receiver side is used to suppress the signal received from the far end. The adjustable attenuator 724 and AGC 722 on the transmitter side are to protect the transmission circuit from damage or saturation due to high power from portable radio communication equipment located within/near the radio shield enclosure.

Figure 8 schematically illustrates a circuit that may be used for frequency conversion using time division duplexing (TDD) according to an example of a radio shield accessory described herein. Antenna 802 may be considered an outwardly wireless radio antenna, and coupler 828 may be considered an inwardly wireless radio coupler/"antenna" (in some examples, comprising a radio such as feed 612 and coupler 610 of FIG. components), and the circuit in between can be thought of as a radio frequency converter.

In FIG. 8, the antenna 802 is coupled to a first switch 804 which in turn is coupled on the receiver side to a low noise amplifier (LNA) 806, a first AGC 808, a first mixer 810, an adjustable amplifier 812, It is then coupled to a second switch 824 . The second switch 824 is coupled to a coupler 828 via an adjustable attenuator 826 for transmission to the device. The second switch 824 is also coupled to the second AGC 822 on the transmitter side. The second AGC 822 is in turn connected to the second mixer 820, the third AGC 818 and the power amplifier 816, which is coupled to the first switch 804. A combiner 814 is coupled to first and second mixers 810, 820 between the receiver and transmitter sides of the circuit.

Wireless energy coupling 836 occurs between the circuit connections between adjustable attenuator 826 and coupler 828 . Wireless energy coupling 836 is coupled to energy detector 830 , which in turn is coupled to controller 832 , which is coupled to switching power supply control 834 . The controller 832 is also coupled to the first and second switches 804 , 824 .

When the energy detector 830 detects that the circuit is transmitting a signal, the transmitter circuit branch is turned on and the receiver circuit branch is turned off. Otherwise, the transmitter circuit branch is turned off and the receiver circuit branch is turned on. The function of the adjustable amplifier 812 at the receiver side is to suppress the signal received from the far end. The adjustable attenuator 826 and AGC 822 on the transmitter side are used to protect the transmission circuit from damage or saturation due to high power from portable radio communication equipment located within/near the radio shield enclosure.

As a general trend, portable radio communication devices such as mobile phones support a wide variety of communication standards. A radio shield accessory as described herein may be configured to operate in the shielded radio frequency band as well as a second, different radio frequency band via radio communication standards of the following classes: cellular network communications; Bluetooth; wireless local area network (WLAN); global positioning Global System for Mobile communications (GSM); White Space (WS) communications; Wideband Code Division Multiple Access (WCDMA); Time Division Synchronous Code Division Multiple Access (TD-SCDMA); Code Division Multiple Access 2000 (CDMA2000) ; Frequency Modulation (FM) Radio Communications; Near Field Communications (NFC); Digital Video Broadcasting-Handheld (DVB-H); Long Term Evolution (LTE) Time Division Duplex (TDD); and Long Term Evolution (LTE) Frequency Division Duplex (FDD) ).

A radio shield accessory as described herein may be used in accordance with one or more of such standards to perform frequency conversion to and from another frequency band within the same standard, or frequency conversion to/from a different standard, or Frequency conversion to/from a frequency band in a different range to the above mentioned standard and/or any other standard. Moreover, also according to one or more of such standards (which may be the same standard, part of the same standard, or a different standard than those in which the frequency conversion/shielding takes place), the radio shielding accessory may operate to Allows radio communication without frequency translation/shielding. The examples of Figures 9a and 9b illustrate a radio shield accessory configured for frequency conversion of one standard while allowing the use of other standards without frequency conversion/shielding.

FIG. 9 a shows an example device 902 with a display 904 . The device is shown with four antennas 906 , 908 , 910 and 912 each on one edge of the device 902 . Antennas 906, 908, 910 and 912 for different standards are separated. Portable radio communication devices will often have more than one antenna for each standard (such as diversity or multiple input-multiple output MIMO). Radio shield attachment 914 is located near top antenna 906 of device 902 . Radio shield attachment 914 includes transceiver 916 . As can be seen in Figure 9a, the top antenna 906 is the main antenna and supports quad-band GSM. The device's other three antennas 908, 910, 912 are not primary antennas and support other standards (eg, GPS, Bluetooth/Wi-Fi, and WCDMA).

If frequency translation/masking is not desired for transmissions over GPS, Bluetooth/Wi-Fi and WCDMA, the radio shield accessory does not need to be related to the corresponding GPS, Bluetooth/Wi-Fi and WCDMA antennas 908, 910, 912 to operate. For frequency translation and shielding of quad-band GSM communications, a radio shield accessory 914 may be located on the device 902 such that the radio shield accessory's antenna/transceiver 916 is located near the quad-band GSM antenna 906 of the device 902 for coupling, and the radio shield Accessory 916 is positioned for quad band GSM communication shielding without affecting communication from other antennas 908 , 910 , 912 .

In other examples, antennas for different standards may be combined, or may be in close proximity to each other, as space within such devices may be limited. FIG. 9 b shows an example device 952 with a display 954 . The device is shown with one combined antenna 956 . Radio shield attachment 958 is positioned proximate antenna 956 of device 902 , and radio shield attachment 958 includes transceiver 960 . As can be seen in FIG. 9b, the combined antenna 956 supports five-band communications, such as four-band GSM and WCDMA 2100, for example.

The radio shielding accessory 958 can be configured to make frequency shifting and shielding of quad-band GSM communications possible while leaving any other communications, such as WCDMA 2100, unaffected. In other examples, other antennas, such as a Bluetooth/Wi-Fi antenna, may be in the same bottom area of device 952 . In other examples, the same antenna 956 can support multiple communications including quad-band GSM, WCDMA 2100, Bluetooth/Wi-Fi, and possibly other communications.

Those skilled in the art will appreciate from this disclosure how to combine circuits such as those illustrated in Figures 7 and 8 to allow the radio shield accessory to operate according to the scheme discussed, for example with respect to Figures 9a and 9b . For example, for a radio shield accessory with separate but proximate antennas for GSM communications and for WCDMA and Bluetooth/Wi-Fi communications, a circuit could be built by including, for example:

A circuit similar to that of Figure 8 for GSM communications to allow frequency translation/masking; and

A simplified circuit similar to that of Figure 7 for WCDMA 2100 communications and similar to that of Figure 8 for Bluetooth/Wi-Fi communications, such that these communications remain unaffected (removed synthesizer components).

As another example, for a radio shield accessory with separate but proximate antennas for GSM communications and for WCDMA and Bluetooth/Wi-Fi communications, a circuit could be constructed to include a 8 is similar to the circuit but does not shield any communication. In this case, a filter can be included between the adjustable amplifier on the transmitter side and the second switch to help ensure that the incoming GSM signal is confined to its own frequency band and reduce the impact of the incoming GSM signal on adjacent bands. Any interference with original WCDMA in range. A narrowband strong signal can be used to suppress the original GSM signal and thus keep WCDMA (Bluetooth/Wi-Fi) communication unaffected. This filter can be used to limit the strongly suppressed signal to a narrow band.

As a further example, for a radio shield accessory with one antenna configured for multiple communication standards (e.g., Bluetooth and Wi-Fi), a circuit can be configured to include circuits similar to the circuit of FIG. Circuits for Bluetooth and Wi-Fi communication standards. Both Bluetooth and Wi-Fi operate in the 2.4GHz ISM band and are able to share the same antenna. However, since the specifications of each communication standard are different, they all use different frequency bands. In the 2.4GHz ISM band there are about 80 consecutive frequency points with 1MHz intervals, of which Wi-Fi occupies about 20 consecutive frequency points and Bluetooth requires more than 21 frequencies. Thus, Wi-Fi and Bluetooth are capable of operating in separate frequency groups within the 2.4GHz ISM band. If a single antenna is used for both Wi-Fi and Bluetooth communications, and it is required that the frequency band of Bluetooth be changed to a new frequency band while the frequency band of Wi-Fi remains the same, it is possible with the apparatus disclosed herein. In this case, a Local Oscillator (LO) could be included in each Wi-Fi and Bluetooth circuit between the mixers in the transmitter and receiver circuit branches in order to tune the frequency band and, for example, integrate the Frequency conversion to a new frequency band while keeping the Wi-Fi frequency band unchanged.

In other examples, if it is necessary to change the frequency band of more than one antenna of a portable radio communication device, this can be accomplished by having a radio shield accessory with an inward-facing transceiver located near each antenna of the device and outgoing transceivers, for each of said antennas, to frequency translate communications. Shielding components can also be positioned for each device antenna so that communications in the shielded frequency bands are prohibited. For example, a device may have at least two antennas: one diversity/MIMO antenna and another main antenna for CDMA or LTE communications. A radio shielding accessory may have two regions with inward and outward transceivers located near the device antenna and shielding in place to prohibit radio communications from the device antenna on the shielded frequency bands.

Figure 10 shows a flowchart illustrating the method steps of wirelessly communicating 1002 locally with a portable radio communication device on a shielded radio frequency band of the portable radio communication device via an inward wireless radio coupler; performing long-range wireless communication 1004 on a second different radio frequency band via the antenna wirelessly outwardly; converting the radio communication between the shielded radio frequency band and the second different radio frequency band via a radio frequency converter, Long-range radio communications to and from the portable radio communications device are thereby allowed to be received and transmitted 1006 on a second, different radio frequency band.

FIG. 11 schematically illustrates a computer/processor readable medium 1100 providing a program, according to one example. In this example, the computer/processor readable medium is a disc such as a digital versatile disc (DVD) or a compact disc (CD). In other embodiments, the computer/processor readable medium may be any medium that has been programmed in a manner to carry out the inventive functions. The computer/processor readable medium can be distributed between multiple memories of the same type, or between multiple memories of different types such as ROM, RAM, flash memory, hard disk, solid state disk, and the like.

The portable radio communication device shown in the above examples for use with a radio shield accessory may be a portable electronic device, mobile phone, smartphone, personal digital assistant, tablet computer, laptop computer, radio, portable communication device, or Modules/circuits for one or more of them.

Any of the mentioned devices/devices/servers and/or other features of the specifically mentioned devices/devices/servers may be provided by deployed devices such that they become configured only when enabled (e.g., powered on) isochronously perform the desired operation. In such cases, they may not have to have the appropriate software loaded into active memory in a non-enabled (eg, off state), and only have the appropriate software loaded in an enabled (eg, powered-on state). The components may include hardware circuitry and/or firmware. The apparatus may include software loaded onto memory. Such software/computer program may be recorded on the same memory/processor/functional unit and/or on one or more memory/processor/functional units.

In some examples, the particular apparatus/devices/servers in question may be pre-programmed with appropriate software to perform the desired operations, and where such appropriate software may be enabled to be used by a user downloading a "key", for example, This "key" is used, for example, to unlock/enable the software and its associated functionality. Advantages associated with such an embodiment may include reducing the requirement to download data when the device requires additional functionality, and this assumes that the device has sufficient capacity to store such presets for functions that are not enabled by the user. Programming software examples would be useful.

Any mentioned means/circuit/element/processor may have other functions in addition to the mentioned functions and these functions may be performed by the same means/circuit/element/processor. One or more disclosed aspects may encompass the electronic distribution of an associated computer program as well as the computer program (which may be source/transfer encoded) recorded on a suitable carrier (eg memory, signal).

Any "computer" described herein may include a collection of one or more individual processors/processing elements, which may be located on the same circuit board, or in the same partition/location of a circuit board, or even on the same device. In some embodiments, any one or more of the mentioned processors may be distributed across multiple devices. The same or different processors/processing elements may perform one or more of the functions described herein.

It will be appreciated that the term "signaling" may refer to one or more signals transmitted as a series of transmitted and/or received signals. The series of signals may comprise one or more individual signal components or distinct signals to constitute said signaling. Some or all of these individual signals may be transmitted/received simultaneously, sequentially, and/or such that they overlap each other in time.

With reference to any discussion of any of the above-mentioned computers and/or processors and memory (including, for example, ROM, CD-ROM, etc.), these may include computer processors, application specific integrated circuits (ASICs), field programmable gate arrays ( FPGA) and/or other hardware components that have been programmed in such a manner to perform the inventive functions.

The applicant therefore discloses each individual feature described here as well as any combination of two or more such features individually to the extent that it is carried out on the basis of the present description as a whole taking into account the common general knowledge of a person skilled in the art No matter whether such a feature or combination of features solves any problem disclosed herein, it does not limit the scope of the claims. The applicant points out that the disclosed aspect/embodiment may consist of any such individual feature or combination of features. In view of the foregoing description it will be evident to a person skilled in the art that various modifications may be made within the scope of the present disclosure.

While the substantially novel features of the present invention have been shown and described and indicated as applied to preferred embodiments thereof, it will be understood that various omissions of form and detail may be made to the described apparatus and methods by persons skilled in the art and substitutions and modifications without departing from the spirit of the invention. For example, it is expressly contemplated that all combinations of those components and/or method steps which perform substantially the same function in substantially the same way are within the scope of the invention. Furthermore, it should be appreciated that structures and/or components and/or methods shown and/or described in conjunction with any disclosed form or embodiment of the invention may be incorporated in any disclosed or described or suggested as a design choice. In other forms or embodiments. Furthermore, in the claims, means-plus-function clauses are intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Thus, while nails and screws may not be structurally equivalent in the sense that the nail employs a cylindrical surface to hold wood parts together while the screw employs a helical surface in the case of holding wood parts, the nail and screw may be structurally equivalent.

Claims (18)

1. the radio shielding annex for portable radio communication equipment, described radio shielding annex be configured to on the radio bands of described portable radio communication equipment, the radio communication that stems from described portable radio communication equipment shields, described radio shielding annex comprises inside wireless coupler, outwards wireless antenna and radio frequency transducer

Inwardly wireless radio coupler is configured on the radio bands of the conductively-closed of described portable radio communication equipment, carries out radio communication local with described portable radio communication equipment;

Outwards wireless wireless aerial is configured to carry out remote radio communication on the second different radio bands; And

Described radio frequency transducer is configured to radio communication to change between the radio bands and described second different radio bands of described conductively-closed, to allow the distance radio communication to and from described portable radio communication equipment received and transmit on described second different radio bands.

2. one kind comprises the device of radio shielding annex according to claim 1 and portable radio communication equipment according to claim 1.

3. radio shielding annex according to claim 1, wherein said radio shielding annex is one of the following:

Paster, is configured to the outer cover body being attached to described portable radio communication equipment,

The replacement outer cover body of described portable radio communication equipment, and

Additional outer cover body, is configured to be attached to and covers in the existing outer cover body of described portable radio communication equipment.

4. radio shielding annex according to claim 1, part or all of same radio frequency transceiver shared by wherein said inwardly wireless radio coupler and described outwards wireless wireless aerial, with at the radio bands of described conductively-closed and the described second different enterprising line operate of radio bands.

5. radio shielding annex according to claim 1, wherein said radio shielding annex is configured to by comprising following item to shield the described radio communication stemming from described portable radio communication equipment:

First electromagnetic shielding material layer, be configured to forbid from described portable radio communication equipment, radio communication on the frequency band of described conductively-closed.

6. radio shielding annex according to claim 5, wherein said radio shielding annex is configured to by comprising following item further to shield the described radio communication stemming from described portable radio communication equipment:

Second radio frequency layers of absorbent material, is positioned at above described electromagnetic shielding material layer;

Described second radio frequency layers of absorbent material and described first electromagnetic shielding material layer be jointly configured to forbid from described portable radio communication equipment, radio communication on the frequency band of described conductively-closed.

7. radio shielding annex according to claim 6, wherein when described radio shielding annex is operationally located together with described portable radio communication equipment, described electromagnetic shielding material layer is between described portable radio communication equipment and described radio frequency layers of absorbent material.

8. radio shielding annex according to claim 5, wherein said first electromagnetic shielding material layer comprises the one or more of the following: metal forming, flexible metal net and the metal dust be distributed in rubber.

9. radio shielding annex according to claim 6, wherein said second radio frequency layers of absorbent material comprises energy absorbing foam.

10. radio shielding annex according to claim 1, wherein said radio shielding annex is configured to by comprising following item to shield the described radio communication stemming from described portable radio communication equipment:

Low-loss material, be arranged in the described inwardly wireless radio coupler of described radio shielding annex and described outwards wireless wireless aerial at least one near, with forbid stemming from described portable radio communication equipment, radio communication on the frequency band of described conductively-closed.

11. radio shielding annexes according to claim 1, wherein said radio shielding annex is configured to by comprising following item to shield the described radio communication stemming from described portable radio communication equipment:

Transparency electromagnetic wave shield material, is configured to the top of the display screen being positioned at described portable radio communication equipment, with forbid stemming from described portable radio communication equipment, radio communication on the frequency band of described conductively-closed.

12. radio shielding annexes according to claim 11, wherein said transparency electromagnetic wave shield material comprises the one or more of the following: wire netting, silver net and transparent absorbent plastics.

13. radio shielding annexes according to claim 1, wherein said radio shielding annex is configured to via one or more in the radio communication of following classification and at the radio bands of described conductively-closed and the described second different enterprising line operate of radio bands:

Cellular network communication;

Bluetooth;

WLAN (wireless local area network) (WLAN);

Global positioning system (GPS) communicates;

Global system for mobile communications (GSM);

Blank (WS) communication;

Wideband Code Division Multiple Access (WCDMA) (WCDMA);

TD SDMA (TD-SCDMA);

CDMA 2000 (CDMA2000);

Frequency modulation (FM) radio communication;

Near-field communication (NFC);

Handheld digital video broadcasting (DVB-H);

Long Term Evolution (LTE) time division duplex (TDD); And

Long Term Evolution (LTE) Frequency Division Duplexing (FDD) (FDD).

14. radio shielding annexes according to claim 13, wherein said radio shielding annex is configured in the radio communication of identical category, at the radio bands of described conductively-closed and the described second different enterprising line operate of frequency band.

15. radio shielding annexes according to claim 1, wherein said radio shielding annex comprises battery, described battery is configured to provide electric power to described radio shielding annex, to power to one or more in transceiver, transducer and shielding.

16. radio shielding annexes according to claim 1, wherein said radio shielding annex is configured to be powered by the internal electric source for described portable radio communication equipment, to provide electric power to described radio shielding annex, thus one or more in transceiver, transducer and shielding is powered.

17. 1 kinds of computer programs for the radio shielding annex of portable radio communication equipment, described radio shielding annex be configured to on the radio bands of described portable radio communication equipment, the radio communication that stems from described portable radio communication equipment shields, described radio shielding annex comprises inwardly wireless radio coupler, outwards wireless wireless aerial and radio frequency transducer, and described computer program comprises:

Be configured to via described coupler, on the radio bands of the conductively-closed of described portable radio communication equipment, carry out at local and described portable radio communication equipment the computer code of radio communication;

Be configured to via described outwards wireless antenna electric antenna, the computer code carrying out remote radio communication on the second different radio bands; And

Be configured to radio communication to be carried out between the radio bands and described second different radio bands of described conductively-closed change via described radio frequency transducer, to allow the received and computer code that transmits on described second different radio bands of the distance radio communication to and from described portable radio communication equipment.

18. 1 kinds for operating the method for the radio shielding annex for portable radio communication equipment, described radio shielding annex be configured to on the radio bands of described portable radio communication equipment, the radio communication that stems from described portable radio communication equipment shields, described radio shielding annex comprises inwardly wireless radio coupler, outwards wireless wireless aerial and radio frequency transducer, and described method comprises:

Via described inwardly wireless radio coupler, on the radio bands of the conductively-closed of described portable radio communication equipment, local, carry out radio communication with described portable radio communication equipment;

Via described outwards wireless antenna electric antenna, the second different radio bands carries out remote radio communication; And

Via described radio frequency transducer, radio communication changed between the radio bands and described second different radio bands of described conductively-closed, described radio frequency transducer allows the distance radio communication to and from described portable radio communication equipment received and transmit on described second different radio bands thus.