Patent Application
20110294495
1. Field of Invention
The present invention relates to the field of cellular communication, and more particularly, to a femtocell based system.
2. Related Art
Modern cellular handsets provide today a large range of services: Voice calls, SMS, Mails, Data browsing, MMS, instant messaging, browsing, etc. Nevertheless, some of these services are inappropriate in different environments or even disturbing. Examples: handsets ringing in a cinema or a theatre, during live broadcasting, etc. The disturbance of such services can be both to the environment (people/devices around the end user) or to the user himself (losing focus or distracting him).
It is desirable to protect specific areas at specific times that in such environments some of the services will be restricted. Nevertheless it is clear that the transaction/service initiator cannot be aware of the end user location therefore cannot avoid the disturbance.
A brute force approach is to locate a jammer in the area to be protected. The disadvantage is that the end user losses all way of communication. In many scenarios, for example public places this is even illegal. Imagine a Cinema, a doctor in stand by cannot be avoided being called.
The user itself may choose to protect himself or the area. For example, switching to vibration mode, disabling features on the handsets, etc. The disadvantage of this approach is that it involves a voluntary activity which not always happens. For example the user may malfunction the handset, forgets or doesn't want to cooperate with the environment request.
WIPO Publication No. 2009085608, which is incorporated herein by reference in its entirety, discloses a mobile device's or mobile station's access control method for e.g. analog or digital cellular system, involves determining precise geographic location of mobile device, and limiting access of mobile device to wireless communication network.
WIPO Publication No. 0130099, which is incorporated herein by reference in its entirety, discloses a cellular mobile communication system using code division multiple access, has control unit to determine whether mobile unit is within spatial portion based on carrier wave characteristics of received signal.
European Patent Document No. 2071878, which is incorporated herein by reference in its entirety, discloses a radio connection method of user terminal to picocell base station for wireless telecommunications systems, involves making user terminal find match between received unique identifier and identifier on list so as to send authorizing message.
European Patent Document No. 0813801, which is incorporated herein by reference in its entirety, discloses a cellular communication system, esp. for serving large office building—has base station as well as overlapping capsules in each cell receiving and transmitting traffic channels and receiving random access channels.
Prior to setting forth the background of the related art, it may be helpful to set forth definitions of certain terms that will be used hereinafter. The term “SMS” as used herein in this application, is defined as a text message included within a Short Message Service; the term “MMS” as used herein in this application, is defined as a message via a Multimedia Messaging Service.
Embodiments of the invention are described with reference to the accompanying drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Additionally, the left most digit(s) of a reference number identifies the drawing in which the reference number first appears.
The invention will now be described with reference to the accompanying drawings. In the drawings, like reference numbers generally indicate identical, functionally similar, and/or structurally similar elements. The drawing in which an element first appears is indicated by the leftmost digit(s) in the reference number.
The following Detailed Description refers to accompanying drawings to illustrate exemplary embodiments consistent with the invention. References in the Detailed Description to “one exemplary embodiment,” “an exemplary embodiment,” “an example exemplary embodiment,” etc., indicate that the exemplary embodiment described may include a particular feature, structure, or characteristic, but every exemplary embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same exemplary embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an exemplary embodiment, it is within the knowledge of those skilled in the relevant art(s) to affect such feature, structure, or characteristic in connection with other exemplary embodiments whether or not explicitly described.
The exemplary embodiments described herein are provided for illustrative purposes, and are not limiting. Other exemplary embodiments are possible, and modifications may be made to the exemplary embodiments within the spirit and scope of the invention. Therefore, the Detailed Description is not meant to limit the invention. Rather, the scope of the invention is defined only in accordance with the following claims and their equivalents.
Embodiments of the invention may be implemented in hardware, firmware, software, or any combination thereof. Embodiments of the invention may also be implemented as instructions stored on a machine-readable medium, which may be read and executed by one or more processors. A machine-readable medium may include any mechanism for storing or transmitting information in a form readable by a machine (e.g., a computing device). For example, a machine-readable medium may include read only memory (ROM); random access memory (RAM); magnetic disk storage media; optical storage media; flash memory devices; electrical, optical, acoustical or other forms of propagated signals (e.g., carrier waves, infrared signals, digital signals, etc.), and others. Further, firmware, software, routines, instructions may be described herein as performing certain actions. However, it should be appreciated that such descriptions are merely for convenience and that such actions in fact result from computing devices, processors, controllers, or other devices executing the firmware, software, routines, instructions, etc.
The following Detailed Description of the exemplary embodiments will so fully reveal the general nature of the invention that others can, by applying knowledge of those skilled in relevant art(s), readily modify and/or adapt for various applications such exemplary embodiments, without undue experimentation, without departing from the spirit and scope of the invention. Therefore, such adaptations and modifications are intended to be within the meaning and plurality of equivalents of the exemplary embodiments based upon the teaching and guidance presented herein. It is to be understood that the phraseology or terminology herein is for the purpose of description and not of limitation, such that the terminology or phraseology of the present specification is to be interpreted by those skilled in relevant art(s) in light of the teachings herein.
A desirable approach would be to still enable communication in the to be protected area, yet not counting on the good willingness or expertise of the end user. An immediate simple approach to solve the issue above is for the femtocell to send a notification (for example a paging SMS) to all camped users in the to be restricted area just before the window time asking to switch off/move to vibrate. Please note that this is not real SMS as they are not routed through the operator cellular network, but rather locally between the femtocell and the end user. It is understood that this method still relies on an end user manual operation, so still has a drawback. The other proposed solution suggests using one or more femtocell as a mean to protect specific areas.
For example, the specified rules may comprise a time window and an area 120, and managing module 108 may be arranged to block incoming and outgoing calls of mobile communication devices 110 within area 120 during the time window. Managing module 108 may be further arranged to notify each mobile communication device 110 about its incoming calls during the time window.
Managing module 108 may be arranged to prevent noise emitting calls and alerts from reaching mobile communication devices 110 within area 120 during the time window.
Upon the window time necessary to protect area 120, managing module 108 may restrict its service to only specific applications suitable for the environment and the time. For example in a theatre, only SMS may be possible, while voice, browsing, video calls, etc. are barred.
Upon an incoming call for a service that is now barred (restricted), the user may be notified by an SMS, indicating the user that another type of incoming call was received. For example upon an incoming voice call managing module 108 may deny the call to the end user so the end user may not get the incoming call. Consequently, managing module 108 may simulate an SMS message towards the end user notifying the end user that a voice call has been received at the specific time from the number X. It should be noted that the SMS is not a regular SMS as it doesn't go through cellular network 90, rather it is generated and transmitted locally from femtocell base station 100. Such notifications can be for other services as well: video call, instant message, mails, etc.
Upon an incoming call for a service that is now barred, managing module 108 may restrict the service as above. Further, it may notify the call originator that the end user is not available and may ask for a short message to be delivered to the end user via SMS. For example, upon an incoming voice call, femtocell base station 100 may automatically answer, notifying the call originator that the user cannot take the call, accordingly it may ask for a short message which may be voice to text translated and immediately after locally transmitted as a SMS to the end user. Other examples of service conversion can be: mail to SMS, SMS to mail, voice to mail, push to talk to SMS, etc.
In addition to the techniques above, several other techniques or derivatives can be used:
Total or partial service restriction during the window time, accumulating all notifications regarding restricted sessions and delivering them together at the end of the window time. For example restricting any kinds of services during a show, and delivering one mail/SMS at the end may a log of all restricted calls/SMS/MMS/etc. which occurred during the restricted window time.
End user service selectivity—services are restricted on a per end-user basis. For example, only the staff or doctors can get partial/all services, for all others the services are restricted to a subset, i.e., in a theatre the staff and doctors may be able to get voice calls, the audience only SMS.
The specified rules may comprise a distance dependent resource allocation pattern. The area size to be protected can be determined by the power of femtocell base station 100 or the distance of the end user from femtocell base station 100. Alternatively managing module 108 can work otherwise: Service selectivity per distance—scenarios may exist where femtocell base station 100 provides services outside the to be restricted area as well. For example, for femtocell base station 100 in a hall, that covers outside the hall as well. Femtocell base station 100 may use the propagation delay or round trip delay of the end user as a mean for service restriction. For example, femtocell base station 100 in a hall may enable SMS only for end-users in a range of 40 m, and all service for endusers outside this range. This technique can be farther applied to uplink power limitation according the end-user distance from femtocell base station 100 as a mean to restrict the interference to neighbor femtocells, For this purpose the neighbor cells interference limitation may be limited according the distance either by uplink max power limit, service limitations or service restriction. Example: distance above 300 m only SMS, 200-300 m voice calls only, 100-200 HSPA (High Speed Packet Access)<1 Mbps, <100 m—all services possible.
The specified rules may comprise a time window and an area, and further comprising blocking incoming and outgoing calls of the mobile communication devices within the area during the time window (stage 250), and notifying each mobile communication device about its incoming calls during the time window (stage 260). The specified rules comprise a distance dependent resource allocation pattern.
It is to be appreciated that the Detailed Description section, and not the Abstract section, is intended to be used to interpret the claims. The Abstract section may set forth one or more, but not all exemplary embodiments, of the invention, and thus, are not intended to limit the invention and the appended claims in any way.
The invention has been described above with the aid of functional building blocks illustrating the implementation of specified functions and relationships thereof. The boundaries of these functional building blocks have been arbitrarily defined herein for the convenience of the description. Alternate boundaries may be defined so long as the specified functions and relationships thereof are appropriately performed.
It will be apparent to those skilled in the relevant art(s) that various changes in form and detail can be made therein without departing from the spirit and scope of the invention. Thus the invention should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.
The present application claims the benefit of U.S. Provisional Patent Appl. No. 61/348,775, filed on May 27, 2010, which is incorporated herein by reference in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 61348775 | May 2010 | US |
