KR20150022743A - Out-of-band scanning for femto access point detection - Google Patents

Abstract

Scanning for femto access points involves scanning OOB channels to find out-of-band (OOB) signals associated with the femto access point. When a femto access point is first discovered, a first type of scan of each of the OOB channels is performed. The user equipment (UE) determines whether any received responses are originated from the femto OOB access points, and if so, updates the search database of the UE. During subsequent visits to the area of the femto OOB access points, if the UE detects entry into the fingerprint area of the femto OOB access point, a second type of scan is performed, wherein the identified femto OOB access Each of the OOB channels having points is scanned. If responses to this second type of scan are detected, a proximity indication is sent to the serving macro access point using in-band signals.

Description

{Out-OF-BAND SCANNING FOR FEMTO ACCESS POINT DETECTION FOR FEMOTOPE ACCESS POINT DETECTION}

Cross reference to related applications

This application is related to U.S. Patent Application No. 13 / 399,404, filed February 17, 2012, entitled " PROXIMITY INDICATION USING OUT-OF-BAND LINK ", and Attorney Docket No. 111686 U1, Quot; is expressly incorporated herein by reference in its entirety.

Aspects of the present disclosure generally relate to wireless communication systems, and more particularly to out-of-band (OOB) scanning for femto access point detection.

Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, and the like. These wireless networks may be multiple access networks capable of supporting multiple users by sharing available network resources. These networks, which are typically multiple access networks, support communications for multiple users by sharing available network resources. An example of such a network is Universal Terrestrial Radio Access Network (UTRAN). UTRAN is a radio access network (RAN) defined as part of the Universal Mobile Telecommunications System (UMTS), a third generation (3G) mobile phone technology supported by the Third Generation Partnership Project (3GPP). Examples of multiple access network formats include Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Orthogonal FDMA (OFDMA) networks, and Single Carrier FDMA FDMA) networks.

A wireless communication network may include multiple base stations or NodeBs capable of supporting communication for multiple user equipments (UEs). The UE may communicate with the base station on the downlink and uplink. The downlink (or forward link) refers to the communication link from the base station to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the base station.

The base station may transmit data and control information on the downlink to the UE and / or receive data and control information from the UE on the uplink. On the downlink, transmissions from base stations may be subject to interference due to transmissions from neighboring base stations or other radio frequency (RF) transmitters. On the uplink, transmissions from the UE may be subject to interference from uplink transmissions of other UEs communicating with neighboring base stations or from other wireless RF transmitters. This interference can degrade performance for both the downlink and the uplink.

As the demand for mobile broadband access continues to grow, as more UEs access long-haul wireless communication networks and more short-range wireless systems are deployed in communities, congested networks and the likelihood of interference increase do. Research and development continue to advance UMTS technologies to meet the growing demand for mobile broadband access as well as to advance and enhance the user experience by mobile communications.

Exemplary aspects of the present disclosure relate to scanning for femto OOB access points over out-of-band (OOB) channels. Two types of scans are initiated. The first type of scan is performed when the CSG / femto access point is first discovered, or when the femto access point search information database (SID) is updated. In the first scan type, active or passive scanning is used to scan each OOB channel for the femto OOB access points. If probe responses or detected beacons are received, which are responses to the first scan type, the UE will determine whether the responses are from femto OOB access points and if so, populate the SID with OOB identification information Or update. No proximity information to assist in proximity indication reporting during the first scan type is determined.

In additional exemplary aspects, a second type of scanning is used during subsequent visits to areas covered by the femto OOB access points where OOB identification information is present in the SID after the first type of scan. The second type of scan may be initiated by a triggering event, such as when the mobile device detects an entry into the fingerprint area associated with the femto OOB access points. When triggered, the UE scans the channels with the femto OOB access points on the list from the identified SID. When the UE receives the responses for the second type of scan, the UE will report a proximity indication to the serving radio network controller (RNC) via the base station using the in-band signals over the WWAN for the femto OOB access point .

In one aspect of the present disclosure, a method of scanning for a CSG / hybrid femto access point comprises performing a first scan type by a mobile device over a plurality of OOB channels for OOB signals associated with a CSG / hybrid femto access point And the first scan type is performed in response to detecting the first CSG / hybrid femto access point on the in-band channel. The method includes determining at a mobile device whether one or more OOB responses are originated from a femto OOB access point, wherein one or more OOB responses are detected in response to the first scan type, and one Or one or more OOB identifiers associated with the femto OOB access point, in response to determining that the OOB responses are beyond the femto OOB access point, And generating mapping information for mapping with the mobile device. The method further includes updating the search database stored on the mobile device with the mapping information.

In a further aspect of the present disclosure, a scanning method for a CSG / hybrid femto access point is performed on one or more OOB access points associated with one or more femto OOB access points identified in the search database stored on the mobile device, Performing one or more responses at a mobile device in response to a second scan type, and reporting proximity indications by the mobile device over an in-band link Wherein the proximity indication indicates proximity of the mobile device to one or more responding femto OOB access points that originated one or more responses.

In a further aspect of the disclosure, a method for reporting proximity to a CSG / hybrid femto access point includes detecting the location of the mobile device within at least one neighboring macro coverage areas around the CSG / hybrid femto access point, . The method further comprises initiating a timer in response to the detection and transmitting a proximity indication to the serving base station via in-band signaling when the timer reaches a predetermined time offset, Indicating that the mobile device is close to the CSG / Hybrid Femto Access Point.

In a further aspect of the present disclosure, a scanning device for a CSG / hybrid femto access point may be configured to perform a first scan type by a mobile device over a plurality of OOB channels for OOB signals associated with a CSG / hybrid femto access point Wherein the first scan type is performed in response to detecting the first CSG / hybrid femto access point on the in-band channel. The apparatus also includes means for determining at the mobile device whether one or more OOB responses are originated from the femto OOB access point, wherein one or more OOB responses are detected in response to the first scan type, In response to determining that one or more OOB responses are originated from a femto OOB access point, one or more OOB identifiers associated with the femto OOB access point may be associated with one or more of the bands associated with the femto OOB access point Means for generating by the mobile device mapping information to map with identifiers, and means for updating the search database stored on the mobile device with the mapping information.

In a further aspect of the present disclosure, a scanning device for a CSG / hybrid femto access point may communicate with a mobile device via one or more OOB channels associated with one or more femto OOB access points identified in a search database stored on the mobile device. Means for receiving one or more responses at a mobile device in response to a second scan type, and means for reporting a proximity indication by the mobile device over an in- Wherein the proximity indication indicates proximity of the mobile device to one or more responding femto OOB access points that originated one or more responses.

In a further aspect of the present disclosure, an apparatus for reporting proximity to a CSG / hybrid femto access point includes means for determining a location of the mobile device within at least one neighboring macro coverage areas around the CSG / hybrid femto access point, And means for detecting. The apparatus further comprises means for initiating a timer in response to the results of the means for detecting and means for transmitting a proximity indication to the serving base station via in-band signaling when the timer reaches a predetermined time offset And the proximity indication indicates that the mobile device is close to the CSG / Hybrid Femto Access Point.

In a further aspect of the present disclosure, the computer program product has a computer-readable medium on which the program code is recorded. The program code includes code for performing a first scan type by a mobile device over a plurality of OOB channels for OOB signals associated with a CSG / Hybrid Femto Access Point, wherein the first scan type comprises an in- Hybrid femto access point. ≪ RTI ID = 0.0 > [0031] < / RTI > The program code may also include code for determining at the mobile device whether one or more OOB responses are originated from the femto OOB access point, one or more OOB responses being detected in response to the first scan type, , One or more OOB identifiers associated with the femto OOB access point may be associated with one or more bands associated with the femto OOB access point in response to determining that one or more OOB responses are originated from the femto OOB access point Code for generating mapping information for mapping with the identifiers in the mobile device, and code for updating the search database stored in the mobile device with the mapping information.

In a further aspect of the present disclosure, the computer program product has a computer-readable medium on which the program code is recorded. The program code includes code for performing a second scan type by the mobile device over one or more OOB channels associated with one or more femto OOB access points identified in the search database stored on the mobile device, Code for receiving one or more responses at a mobile device in response to a second scan type, and code for reporting a proximity indication by a mobile device over an in-band link, Or proximity of the mobile device to one or more responding femto OOB access points that have sent out responses in excess of the femto OOB access points.

In a further aspect of the present disclosure, the computer program product has a computer-readable medium on which the program code is recorded. The program code includes code for detecting by the mobile device the location of the mobile device within at least one neighboring macro coverage areas around the CSG / Hybrid Femto Access Point. The program code may also include code for initiating an executable timer in response to the results of the execution of the program code for detecting and for indicating proximity to the serving base station via in-band signaling if the timer reaches a predetermined time offset And the proximity indication indicates that the mobile device is close to the CSG / Hybrid Femto Access Point.

In a further aspect of the present disclosure, an apparatus includes at least one processor and a memory coupled to the processor. The processor is configured to perform a first scan type by the mobile device over a plurality of OOB channels for OOB signals associated with the CSG / Hybrid Femto Access Point, wherein the first scan type is configured to first perform CSG / Is performed in response to detecting the femto access point. The processor determines at the mobile device whether one or more OOB responses are originated from the femto OOB access point and one or more OOB responses are detected in response to the first scan type, In response to determining that the OOB responses in excess are originated from the femto OOB access point, one or more OOB identifiers associated with the femto OOB access point may be associated with one or more in-band identifiers associated with the femto OOB access point Generating mapping information for mapping by the mobile device, and updating the search database stored on the mobile device with the mapping information.

In a further aspect of the present disclosure, an apparatus includes at least one processor and a memory coupled to the processor. The processor performs a second scan type by the mobile device over one or more OOB channels associated with one or more of the identified femto OOB access points in the search database stored on the mobile device, Wherein the mobile device is configured to receive one or more responses at the mobile device in response to the at least one response and to report proximity indications by the mobile device over an inband link, Or proximity of the mobile device to the responding femto OOB access points.

In a further aspect of the present disclosure, an apparatus includes at least one processor and a memory coupled to the processor. The processor is configured to detect, by the mobile device, the location of the mobile device within at least one neighboring macro coverage areas around the CSG / Hybrid Femto Access Point. Wherein the processor is further configured to initiate a timer in response to the detection and to transmit a proximity indication to the serving base station via in-band signaling if the timer reaches a predetermined time offset, Is close to the CSG / Hybrid Femto Access Point.

1 is a block diagram conceptually illustrating an example of a mobile communication system.
Figure 2 is a block diagram illustrating a view of a base station / access point and a UE, which may be one of the base stations / access points and UEs of Figure 1;
3 is a block diagram illustrating details of a UE configured in accordance with an aspect of the present disclosure;
4 is a functional block diagram illustrating exemplary blocks that are coded to implement one aspect of the present disclosure;
5 is a block diagram illustrating a UE configured in accordance with an aspect of the present disclosure.
Figure 6 is a functional block diagram illustrating exemplary blocks that are implemented to implement one aspect of the second scan type of the present disclosure.
7 is a functional block diagram illustrating the detailed blocks that are implemented to implement a second scan type configured in accordance with an aspect of the present disclosure.
8 is a block diagram illustrating details of a UE configured in accordance with an aspect of the present disclosure.

The detailed description set forth below in connection with the appended drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details to provide a thorough understanding of the various concepts. It will be apparent, however, to those skilled in the art that these concepts may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form in order not to obscure these concepts.

The techniques described herein may be used for various wide area or local area wireless communication networks such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other networks. The terms "network" and "system" are often used interchangeably. CDMA networks can implement radio technologies such as Universal Terrestrial Radio Access (UTRA) and the Telecommunications Industry Association (TIA) CDMA2000 (R). UTRA techniques include wideband CDMA (WCDMA) and other variants of CDMA. CDMA2000® technology includes the Electronics Industry Alliance (EIA) and IS-2000, IS-95, IS-856 and 1xEV-DO standards from TIA. The TDMA network may implement radio technologies such as General Purpose System for Mobile Communications (GSM). The OFDMA network may implement radio technologies such as E-UTRA (E-UTRA), UMB, IEEE 802.11, WiMAX, IEEE 802.20, and Flash-OFDM. UTRA and E-UTRA technologies are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) and LTE-Advanced (LTE-A) are newer releases of UMTS using E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from the organization named as "3rd Generation Partnership Project (3GPP) ". CDMA2000®, 1xEV-DO and UMB are described in documents from the organization named "3rd Generation Partnership Project 2 (3GPP2)". The techniques described herein may be used for the wireless networks and radio access technologies described above as well as other wireless networks and radio access technologies. While the various aspects and alternatives of this disclosure may be applicable to many types of network technologies, such as LTE, UMTS, etc., aspects described herein are disclosed for UMTS network technology. However, it will be appreciated that the various aspects of the present disclosure are not limited to applications in UMTS systems.

1 shows a wireless network 10 for communication. The wireless network 10 may be a UMTS network. The wireless network 10 includes a plurality of access points (APs) 103-108 and other network entities. An access point may be a station that communicates with UEs and may also be referred to as a base station, a Node B (NB), an access point, and so on. Each of the access points 103-108 may provide communication coverage for a particular geographic coverage area. Each of the access points 103-108 provides communication coverage in the coverage areas 100-102 and 109-111, respectively.

The access point may provide communication coverage for macro coverage areas, pico coverage areas, femto coverage areas, and / or other types of coverage areas. Macro coverage areas such as coverage areas 100-102 typically cover relatively large geographic areas (e.g., areas with a radius of several kilometers), and are unrestricted by UEs with service subscriptions by network providers Access can be granted. A pico coverage area, such as coverage area 111, can generally cover a relatively smaller geographic area and allow unrestricted access by UEs with service subscriptions by network providers. A femto coverage area such as coverage areas 109-110 may also generally cover a much smaller area (e.g., house, room, etc.), and in addition to unrestricted access, (E.g., closed subscriber group (CSG) UEs, home-based users for UEs, etc.). An access point to a macro coverage area may be referred to as a macro access point. An access point to the pico coverage area may be referred to as a pico access point, or it may be generally referred to as a femto access point with an access point to a femto coverage area. For purposes of the present application, a " femto access point " Will be used to refer to access points that are not macro access points, such as femto access points, pico access points, home NodeBs (HNBs), and so on. In the example shown in FIG. 1, access points 103-105 are macro access points for macro coverage areas 100-102, respectively. Access points 106-108 are femto access points for femto coverage areas 109-110 and pico coverage area 111. [ An access point may support one or more coverage areas (e.g., two, three, four, etc.).

The wireless network 10 may support synchronous or asynchronous operation. For synchronous operation, the access points may have aligned frame timing, and transmissions from different access points may be time aligned. For asynchronous operation, the access points may have different frame timings, and transmissions from different access points may not be time aligned. The techniques described herein may be used for synchronous or asynchronous operations.

The UEs 112-114 may be interspersed over the wireless network 10, and each UE may be stationary or mobile. A UE may also be referred to as a terminal, a mobile station, a mobile equipment, a subscriber unit, a station, and the like. The UE may be a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a tablet computer, a laptop computer, a cordless phone, a wireless local loop (WLL) The UE may be capable of communicating with macro access points, femto access points, repeaters, and the like.

The wireless network 10 utilizes various sets of access points 103-108 (e.g., macro access points and femto access points) to improve the spectral efficiency of the system per unit area. Because the wireless network 10 uses these different access points for its spectral coverage, it can also be referred to as a heterogeneous network. The macro access points 103-105 are typically carefully planned and deployed by the provider of the wireless network 10. Macro access points 103-105 typically transmit at high power levels (e.g., 5W-40W). The femto access point 108 that defines the pico coverage area 111 generally transmits at significantly lower power levels (e.g., 100 mW - 2 W) and can be deployed in a relatively unplanned manner, It is possible to remove coverage holes and improve the capacity of hot spots in the coverage area provided by macro access points 103-105. The femto access points 109-110, which are typically located independently of the wireless network 10, are nonetheless a potential access point to the wireless network 10 when authorized by their manager (s) Or at least as an active and aware access point capable of communicating with other access points 103-105 and 108 of the wireless network 10 in the coverage area of the wireless network 10. [ Femto access points 106-107 also typically transmit at significantly lower power levels (e.g., 100 mW - 2 W) than macro access points 103-105.

2 shows a block diagram of one design of base station / access point 105 and UE 112, which may be one of the base stations / access points and UEs of FIG. For a limited association scenario, the access point 105 may be the macro access point 105 of FIG. 1 and the UE 112 may be the UE 112. The access point 105 may also be some other type of base station, among other things, performing various physical layer functions (modulation, coding, interleaving rate adaptation, spreading, etc.). The access point 105 maintains communication with a radio network controller (RNC) (not shown), and the RNC controls radio resources in associated coverage areas through its associated base stations, such as the access point 105. The access point 105 may be provided with antennas 234a to 234t and the UE 112 may be provided with antennas 252a to 252r.

At access point 105, transmit processor 220 may receive data from data source 212 and control information from controller / processor 240. Transmit processor 220 may process and code data and control information to provide output streams to modulators (MODs) 232a through 232t. Each modulator 232 may process each output stream to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The downlink signals from modulators 232a through 232t may be transmitted via antennas 234a through 234t, respectively.

At UE 112, antennas 252a through 252r may receive downlink signals from access point 105 and provide the received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 can condition (e.g., filter, amplify, downconvert, and digitize) each received signal to obtain input samples. Each demodulator 254 may further process the input samples to obtain the received symbols. The receive processor 258 processes (e.g., demodulates, deinterleaves, and decodes) the detected symbols, provides decoded data for the UE 112 to the data sink 260, / Processor 280. The < / RTI >

On the uplink, at the UE 112, a transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280. [ The processed data and control information from transmit processor 264 may be further processed by demodulators 254a through 254r and transmitted to access point 105. [ At access point 105, uplink signals from UE 112 are received by antennas 234 and transmitted to modulators 232 (e.g., antennas) to obtain decoded data and control information transmitted by UE 112 , And may be further processed by the receive processor 238. [ Receive processor 238 may provide the decoded data to data sink 239 and provide decoded control information to controller / processor 240. [

The controllers / processors 240 and 280 may direct the operation at the access point 105 and the UE 112, respectively. The controller / processor 240 and / or other processors and modules at the access point 105 may perform or direct the execution of various processes for the techniques described herein. The controller / processor 280 and / or other processors and modules at the UE 112 may also be coupled to the functional blocks illustrated in Figures 4,6 and 7 and / or other processes for the techniques described herein To perform or direct the execution. Memories 242 and 282 may store data and program codes for access point 105 and UE 112, respectively.

Femto access points such as UMTS High Speed Packet Access (HSPA) systems or femto access points 106-107 deployed in release 99 of UMTS may also be referred to as home NBs (HNBs). Femto access points deployed in LTE systems may be referred to as home evolved NodeBs (HeNBs) when deployed in a home access situation. For purposes of this disclosure, HeNBs and HNBs will collectively be referred to as HNBs and will generally be referred to as femto access points. The placement of HNBs or femto access points free up bandwidth for macro access points serving the area in which the HNB or femto access point is located, while providing for improved coverage and data rates for home environments. . The femto access point functions and interfaces may be basically the same as for normal macro access points. When femto access points are deployed in a wireless network, the network may be configured to provide access to the network and femto accesses, such as, for example, to activate or deactivate a femto access point, to verify an identity and geographic location, Points of interaction can be controlled.

It should further be noted that the various aspects of the present disclosure are equally applicable in UMTS, LTE and similar wireless technologies. Thus, for purposes of this disclosure, macroevaluated NodeBs (LTE) and macro NodeBs (UMTS) will collectively be referred to as macro access points. Those skilled in the art will further understand the structural and technical differences between various wireless communication technologies such as UMTS and LTE, and will appreciate that the aspects disclosed herein are equally applicable to any such similar wireless technology.

Often, a femto access point will include multiple radios that it can communicate with. For communications with UEs that are part of a wireless communication network, a femto access point may be in a band such as a wireless wide area network (WWAN) link on a frequency where the macro access point on the network may or may not be the same as the frequency Communication can be performed using a communication link. The femto access point also receives OOB signals including out-of-band (OOB) radios such as BLUETOOTH®, BLUETOOTH® Low Energy (LE), WIFI ™, WIFI DIRECT ™, ZIGBEE ™, IEEE 802.15, And short-range communication capabilities for transmissions. Because modern UEs also typically include multiple radios in addition to WWAN radios for communication using OOB protocols, the UE may also use these OOB radios in addition to communication capabilities within the UE ' s WWAN band, Communication with the access point can be established.

In operation, some femto access points, including OOB capabilities, may be referred to as femto OOBs or femto OOB access points, which may include femto access points also having associated OOB radio components. Other implementations of the femto OOB may be integrated femto OOB, such as integrated femto WIFI (TM) (IFW), where the WIFI (TM) radio is integrated into the same physical femto access point component. Other implementations of the femto OOB may be when the OOB access point is attached as a universal serial bus (USB) attachment or dongle to the femto access point. In yet another embodiment of the femto OOB, the femto access points may be associated with the OOB access point in that they belong to the same user, are physically close, and are typically on the same subnet. This can be treated as a virtually integrated femto OOB. OOB radios for these femto OOBs may include BLUETOOTH®, BLUETOOTH® LE, WIFI ™, WIFI DIRECT ™, ZIGBEE ™, IEEE 802.15, and the like.

Access to femto access points may be closed for all non-closed subscriber group (CSG) members, open for access to any UE, or may be open to both members and non-members of the CSG Lt; RTI ID = 0.0 > access. ≪ / RTI > Before performing a handover decision to handover the UE to an accessible target femto access point, the macro access point examines the measurement information regarding the target femto access point and its access control mechanism. However, especially when the femto access point is on a different frequency than the macro frequency as in the case involving inter-frequency measurements, the UE has successive measurements of all the femto access points on the CSG's white list of systems, Reading the information will be impractical.

Related Application No. 13 / 399,404, entitled " PROXIMITY INDICATION USING OUT-OF-BAND LINK ", Attorney Docket No. 1116867U1, co-pending, and assigned assignee hereby, (OOB) link capabilities (e.g., BLUETOOTH®, BLUETOOTH® LE, WIFI DIRECT ™, ZIGBEE ™, IEEE 802.11, IEEE 802.15, etc.) to detect proximity of a femto access point. If the UE finds itself in the fingerprint area associated with the femto access point, instead of immediately reporting a proximity indication for the corresponding femto access point, the UE may trigger femto access point detection using the OOB link do. The fingerprint region is defined as a union of a set of neighboring macro coverage areas around a CSG / Hybrid Femto OOB access point of interest. Upon discovery of a femto access point over the OOB link, the UE determines that it is close to the femto access point and sends a proximity indication to its serving macro access point. In Release 99 UMTS systems, the UE will transmit this proximity indication to its serving radio network controller (RNC) via its macro access point, while in other systems, such as LTE systems, It will only send a proximity indication to the serving macro access point. Since femto OOB coverage is nearly matched to femto coverage, the detection of a femto access point over an OOB link is very accurate and is a reliable mechanism for triggering the transmission of proximity indication.

Referring again to FIG. 1, femto access points 106-107 are located within wireless network 10 and communicate with femto access points or home NBs (HNBs) 110 and 110, respectively, forming femto coverage areas 109 and 110, Quot;). The UEs 112-114 are also illustrated as being within the wireless network 10. In existing proximity detection methods, the home area is defined by macro coverage areas known as the neighbors of the target femto access point. For example, for purposes of the aspects illustrated in FIG. 1, the femto access point 106 and the femto coverage area 109 are the femto access point and home coverage areas of the UE 112. Thus, according to existing proximity determination methods, a groove area, sometimes also referred to as a fingerprint, can be defined as the combined area of the macro coverage areas 100-102. The UE 112 stores the identification information of the macro coverage areas 100-102 in the proximity database PD for use in detecting proximity of the femto access point 106 that is a femto access point. Thus, in these conventional proximity detection schemes, whenever one of the macro access points 100-102 is the strongest coverage area or the UE 112 moves to a location that is a member of the active set of UE 112 , The UE 112 transmits a proximity indication indicating proximity to the femto access point 106 to its serving RNC via a macro access point such as the macro access point 105. [ In addition, the UE 112 may also be associated with a femto access point-related (RAT) that includes a radio access technology (RAT), a frequency, a femto access point ID, a femtocell primary scrambling code (PSC), a femto PLMN And store the identification information in the femto access point search information database (SID).

3 is a block diagram illustrating details of a UE 112 configured in accordance with an aspect of the present disclosure. UE 112 includes a wireless wide area network (WWAN) radio component 300 and also OOB radio components 301. The OOB radio components 301 may include a number of different radios for various wireless technologies such as BLUETOOTH®, BLUETOOTH® LE, WIFI DIRECT ™, ZIGBEE ™, IEEE 802.15, Global Positioning System (GPS) 301-1 to 201-N). Each of the radio components includes receivers, transmitters, antennas, etc. used to transmit and receive transmissions via WWAN and OOB protocols. For example, the UE 112 detects the macro coverage area 102 as a member of its active set via the WWAN radio component 300. The UE 112 then searches for a proximity database (PD) The PD 304 includes details of the fingerprint area around the femto access points associated with the UE 112, including the fingerprint surrounding the femto access point 106. Because the coverage area 102 is in this fingerprint area, the UE 112 initiates scanning for the femto access point 106 using the OOB radio components 301. The UE 112 continues to transmit and receive data over the macro access point 105 and the in-band WWAN link 305 if it is in a connected state while using the OOB radio components 301 to transmit the femto access point 106 to the femto access point 106 via the OOB link 306. [

The femto access point 106 has the capability for OOB transmissions. The UE 112 may detect the WIFI ™ signals of the femto access point 106 and may identify the femto access point 106 from the WIFI ™ signals received via the WIFI ™ OOB radio 301-1. The UE 112 uses the WIFI identification information of the femto access point 106 and transmits the WIFI identification information to the femto access point 106 of the femto access point 106 stored in the femto access point SID 303 of the memory 302, Match identification information. The UE 112 maps the WIFI ™ identification information to the in-band / WWAN of the femto access point 106 using the relational mapping data of the femto access point SID 303. After identifying the femto access point 106 using the information obtained based on detection via the OOB link 306, the UE 112 transmits a proximity indication to the serving RNC via the macro access point 105 . Then, the handover evaluation process will continue as before.

In order to detect the proximity of the femto OOB access point via OOB signaling, the mobile (UE, MS, AT, etc.) will be scanning multiple channels for OOB identifiers / signals associated with the femto OOB access point. Channel scanning is a time consuming process. When performing passive scanning, the UE will wait for several beacon intervals per channel to detect the femto OOB access point. Active scanning may also be performed where the UE sends a probe request to the WIFI access point. Active scanning can take up to 15 msec per channel. The energy consumption on the UE for passive scanning will be different from the energy consumption for active scanning.

A method of scanning for femto OOB access points from which two types of scans can be performed is described. In a first type of scan, a list of femto OOB access points based on probe responses received during the discovery of the femto OOB access points or in response to a scan of the first type thereafter includes their identifiers (e.g., WIFI , An operating channel, a MAC address for WIFI ™, a BLUETOOTH ™ address (BD_ADDR), etc.). Targeted active scanning is not performed for the first scan type because it is because the UE does not know the OOB identification information of the target femto OOB access point. In this first type of scan, no proximity information is determined to assist in proximity indication reporting, and information from the first type of scan is the information on the OOB link of the femto OOB access point with the SID at the UE Is used to populate. The non-OOB-related information associated with the femto access point is assumed to be populated concurrently with or earlier than the in-band link. The first scan type is typically performed once for each femto OOB access point, unless some OOB parameters such as the operating channel are changed.

The second type of scan may be triggered (e.g., detecting that the mobile is in a fingerprint region associated with the femto OOB access points, expiration of offset time after entering the fingerprint region, Where the enhanced fingerprint region is defined by the intersection of a set of neighboring macro coverage areas around the CSG / hybrid femto OOB access point of interest, etc.). When triggered, the UE actively scans the identified channels for the femto OOB access points on the list. When the UE receives the responses for the second type of scan, the UE will report a proximity indication to the serving radio network controller (RNC) via the base station using the in-band signals over the WWAN for the femto OOB access point .

Figure 4 is a functional block diagram illustrating exemplary blocks that are executed to implement a first type of scan configured in accordance with an aspect of the present disclosure. At block 400, the UE first discovers a CSG / Hybrid femto access point. In response to this initial discovery, at block 401, the UE populates the PD with the fingerprint information associated with the femto access point and also populates the SID with the associated femto access point information. The UE will then attempt to determine whether the femto access point is a femto OOB access point. At block 402, the UE sends probe requests (if active scanning is used), or listens to beacon frames (if passive scanning is used), on each of the OOB channels in turn. At block 403, a determination is made whether the UE has received a response, whether it is a probe response or a beacon. If no such response is received, at block 404, the UE inferred that the CSG / hybrid femto access point is not an OOB-enabled. However, even if a beacon or probe response is received, the UE may not know whether the femto access point is OOB-enabled or not, since such beacons or probe responses may be transmitted to the OOB access points Lt; / RTI >

Related Application No. 13 / 399,404, entitled " PROXIMITY INDICATION USING OUT-OF-BAND LINK ", Attorney Docket No. 1116867U1, co-pending, and assigned assignee hereby, A number of methods for acquiring information and mapping such femto OOB information with information in the femto inband are described. This mapped relationship is then stored in the SID to assist in determining whether a probe response or beacon was actually received from the CSG / hybrid femto access point. Using the techniques disclosed in this related application, at block 405, the UE infer the mapping information between in-band and OOB identifiers of the CSG / hybrid femto access point. The UE then updates the SID at block 406 with OOB identification information, channel, etc., of the femto OOB access point. As noted in block 402, to identify all OOB access points, this scanning procedure is repeated for all OOB channels.

It should be noted that if current standards provide such a mechanism, the UE will be able to obtain such information about the OOB capability of the femto access point from the femto access point itself using the in-band link. However, such OOB capability reporting over in-band links is not currently available in existing standards and will require standard variations.

It should further be noted that while there may be a latency during this initial discovery process, this latency will only be experienced during the initial scanning of the CSG / Hybrid Femto Access Point.

5 is a block diagram illustrating a UE 500 configured in accordance with an aspect of the present disclosure. The UE 500 communicates with the macro access point 508 using in-band signals over the WWAN. UE 500 detects the femto access point, such as femto OOB access point 501, through normal procedures and determines whether the femto access point is OOB-enabled or not, as described in FIG. If the femto OOB access point 501 is OOB-enabled, the UE 500 determines the mapping between in-band and OOB identification information of the femto OOB access point, as described in Fig. UE 500 initiates a first scan type by sending probe requests (active scanning) or by listening to beacons in OOB channels (passive scanning). 5, UE 500 may receive probe responses or beacons from femto OOB access points 501, 504, and 506 and from OOB access points 503, 505, and 507, as shown in the example illustrated in FIG. do. When such probe responses or beacons are received, the UE 500 determines whether the inventive name is PROXIMITY INDICATION USING OUT-OF-BAND LINK, the proxy lookup number is 1116867U1, is co-pending, 13 / 399,404 to determine whether the responses originated from the femto OOB access point. In other embodiments, the UE 500 may determine whether probe responses or beacons originate from a femto OOB access point, originate from neighboring OOB access points, or even neighbor femto OOBs It may not be able to determine whether it originates from the access points. It should be noted that OOB access points 503, 505, and 507 may also utilize OOB technologies such as BLUETOOTH®, BLUETOOTH® LE, WIFI DIRECT ™, ZIGBEE ™, IEEE 802.15, and the like.

After performing the first type of scan, the UE 500 causes its SID to be populated and updated with the OOB identification information for the femto OOB access points 501, 504, and 506. Thus, if the UE 500 leaves the area and returns for subsequent visits, the first scan type will typically not be required. During subsequent visits to the CSG / Hybrid Femto access points, the UE 500 may determine that the inventive name is PROXIMITY INDICATION USING OUT-OF-BAND LINK, the proxy lookup number is 1116867U1, is co-pending, Will begin the second scan type if it determines that it is within the fingerprint area associated with the femto OOB access point, as described in the same related application No. 13 / 399,404.

As illustrated in FIG. 5, the UE 500 includes a fingerprint area 509 associated with the femto OOB access point 501. Information about this fingerprint area 509 is stored in the PD of the UE 500. [ When the UE 500 detects its entry into the fingerprint area 509, the second scan type is triggered. The UE 500 may send probe requests directed on OOB channels or receive beacons as stored in the SID for that femto OOB access point during the first visit of the UE 500 to that particular femto OOB access point Try it. Upon sending a directed probe request, the UE 500 will use the corresponding OOB identification information of the femto OOB access point as stored in the SID. For example, at subsequent visits to the femto OOB access point 501, if the UE 500 determines that it is within the fingerprint area 509 of the femto access point 501, , And send a probe request that may include the MAC address of the femto OOB access point 501 in the ID field of the probe.

When there are a plurality of CSG / hybrid femto OOB access points in a PD that the UE 500 is searching in a given fingerprint area and they operate in the same OOB channel, the UE 500 transmits a broadcast probe having a broadcast address And sends the request on its channel as the destination and broadcast ID information. For example, within the fingerprint area 509, the PD of the UE 500 may indicate that the femto OOB access point 501 and the femto OOB access point 506 operate on the same OOB channel. Accordingly, the UE 500 will send probe requests directed on the specific OOB channels configured for the femto OOB access point 501. [ When the UE 500 receives a response to the probe requests from the femto OOB access point 501, the UE 500 uses the in-band communication signals on the WWAN to access the femto OOB access 508 via the macro access point 508 And transmits a proximity indication associated with the point to the serving RNC. The macro access point 508 then reports the measurements to the femto OOB access point 501 and uses these measurements to send the UE 500 to the femto OOB access point 501 for service within the femto coverage area 502. [ The UE 500 may be instructed to determine whether to hand over to the access point 501.

Figure 6 is a functional block diagram illustrating exemplary blocks that are executed to implement one aspect of the second scan type of the present disclosure. At block 600, the UE obtains the current location of the femto OOB access points from the CSG proximity database by comparing the current UE location with the stored fingerprint information in its proximity database PD and the femto access point search information database (SID) Acquires the list, and sets the counter to zero. Using this list, at block 601, the UE prepares a scan list for each OOB channel to be scanned with corresponding OOB IDs to search for associated with the femto OOB access points and other contact information.

At block 602, the UE sends probe requests using active scanning, or listens to beacons according to a scan list using passive scanning. At block 603, a determination is made whether the UE detects responses from the femto OOB access point whether it is a probe response or a beacon. If a response is detected, at block 604, the UE sends a proximity indication to the serving RNC on the WWAN for the corresponding femto OOB access point. If there are no detected responses, at block 605, the counter is incremented. At block 606, a determination is made whether the counter has exceeded a predetermined number. If so, at block 607, the UE performs a full scan and updates the femto access point SID with the OOB channel information and, if applicable, the OOB IDs associated with the femto OOB access point. The full scan may include scanning to detect the femto OOB access point, and if any information about the OOB link of the femto OOB access point has changed, the femto access point SID is updated with the new information.

It should be noted that the predetermined number at which counters are compared may be based on a statistical number of searches used to effect a meaningful search. This statistical number may be related to the number of searches, where searches performed in excess of that number will not significantly increase the probability of detecting a femto OOB access point over the OOB. This detection failure may be due to many factors such as a change in the OOB channel or a change in the OOB ID. Thus, as described in block 607, if this predetermined number is exceeded, a full scan will be performed to update the SID with any information that may have changed. This may also depend on the size of the fingerprint region compared to the femto access point coverage area, which may sometimes be referred to as fingerprint footprint.

If the counter has not yet exceeded the predetermined number, the UE waits at a predefined interval at block 608 before retransmitting the probe request at block 602. It should be noted that the predetermined interval may be based on the operating system of the UE, which is configured according to fingerprint footprint and the like.

In various aspects of the present disclosure, a second type of scanning may be triggered by the UE detecting an entry into its fingerprint region. For example, referring to FIG. 5, if the UE 500 determines that it is located in the fingerprint area 509, the UE 500 transmits probe requests of the second scan type according to the scan list Begin to. In another exemplary aspect, the second scan may be triggered by a time offset. For example, referring also to FIG. 5, after the UE 500 determines that it has entered the fingerprint region 509, a timer is started to count off the time offset. If the time offset is reached, the UE 500 triggers the second scan type.

It should be noted that the time offset value may be determined based on how large the fingerprint area is in relation to the femto OOB access point coverage (in-band and OOB coverage). For example, if the fingerprint area is large, if the UE 500 has not yet entered the femto OOB access point coverage area 502, and the UE 500 starts scanning immediately after entering the fingerprint area 509, Can be wasted. As the UE 500 learns more about the relationship between the coverage area 502 of the femto OOB access point 501 and the fingerprint area 509, the UE 500 optimizes the value of the time offset over time can do.

It should further be noted that the time offset can also be used during proximity indication reporting without OOB signaling. 5, during a first scan type, the UE 500 determines and infer that the femto OOB access point 501 actually does not have OOB signaling capabilities. The lack of these capabilities may be due to the failure of the OOB elements of the femto OOB access point 501, or merely in this additional example, the femto OOB access point 501 does not have OOB-capabilities. Thus, at subsequent visits to this area, the UE 500 will know that the femto OOB access point 501 does not have OOB capability. In-band signals through the macro access point 508 to the serving RNC when the UE 500 knows that the femto OOB access point 501 does not have OOB capabilities enters the fingerprint area 509. [ Instead of sending the indication immediately, the UE 500 starts a timer (not shown). When the timer reaches the timing offset, the UE 500 transmits the proximity indication to the serving RNC using the in-band signals via the macro access point 508. [ The size of the time offset may be determined based on the size or fingerprint footprint of the fingerprint area 509 with respect to the femto OOB access point coverage area 502, as discussed previously.

It should further be noted that a time offset may be used by the UE during current methods of proximity detection without OOB scans being performed according to the first or second scan types. 5, in the current standard operation of proximity detection, when the UE 500 detects an entry into the fingerprint region 509, the UE 500 transmits a signal to the serving RNC < RTI ID = 0.0 >Lt; / RTI > However, in this exemplary aspect, when UE 500 detects entry into fingerprint region 509, a timer is started. When the timer reaches a predetermined time offset, the UE 500 will transmit a proximity indication to the serving RNC using in-band signals via the macro access point 508. [ This predetermined time offset may be determined as previously described, taking into account the relationship between the fingerprint area 509 and the femto OOB access point coverage area 502.

7 is a functional block diagram illustrating detailed blocks that are executed to implement a second type of scan configured in accordance with an aspect of the present disclosure. At block 700, the UE starts a second type of scan. In selected aspects, block 700, the UE initiates a second type of scan. In selected aspects, block 700 may be used when the UE detects that it is within the first proximity of the femto access point, such as within the fingerprint area surrounding the target femto OOB access point, And after the expiration of the time offset. At this time, the UE has already (1) performed a first type of scan, (2) populated the CSG PD and femto access point SID with the associated fingerprint and femto OOB access point information, and (3) And a scan list from the femto access point SID.

At block 701, a determination is made whether the scan list provides multiple femto OOB access points on the current single OOB channel. If so, at block 702, the UE sends a broadcast probe request with a broadcast address and a broadcast OOB ID. However, if there is only a single femto OOB access point in the OOB channel to be scanned, at block 703, the UE sends a probe request with the femto OOB ID and the MAC address of the femto OOB access point in the ID field of the probe. It should be noted that the UE may also send a broadcast probe request if only a single femto access point is indicated for that OOB channel. The various aspects of the present disclosure are not limited in scope in a single way to transmit probe requests.

At block 704, a determination is made as to whether any activity is detected within the first time window. For example, if no probe response is received but some activity is detected up to the first window or minimum time period, the UE will wait until the second window or maximum time period to receive the probe response. At block 705, a determination is made whether the probe response associated with the femto OOB access point on the UE's CSG whitelist has been received prior to expiration of the second window. If received, at block 706, the UE sends a proximity indication to its serving RNC via the macro access point on the WWAN for detected femto OOB access points. However, if no activity is detected up to the first window, as determined at block 704, or if the UE does not receive any probe responses until the expiration of the second window, as determined at block 705, 707, a determination is made as to whether there are more channels to scan in the scan list. If there are more, at block 708, the UE moves to the next channel and continues the scanning process from block 701. If all of the channels to be scanned have been scanned, at block 709, the UE will stop scanning for femto access points for a predetermined interval.

As mentioned above, the UE may perform a first type of scan to generate a CSG proximity list of potential femto OOB access points, and then, when a particular second scan type event trigger occurs, And may wait to perform a second type scan during visits. For example, one trigger may be the entry of the UE into a fingerprint area around a known femto access point. Referring back to FIG. 1, the UE 112 performs a first type of scan when it first finds a femto access point. During subsequent visits, when the UE 112 detects the macro access point 105 of the macro coverage area 102 in its active list, the UE 112 knows that it has entered its fingerprint area, 2 Trigger the scan type. In another exemplary aspect of the present disclosure, a UE may trigger a second scan type when detecting an entry into an enhanced fingerprint area.

8 is a block diagram illustrating details of a UE 500 configured in accordance with an aspect of the present disclosure. The UE 500 includes a controller / processor 280, and a memory 282 coupled to the controller / processor 280. The memory 282 provides code and electronic readable storage of electronic information for controlling and executing code instructions that provide various features and functionality of the UE 500 when executed and used by the controller / processor. Under the control of the controller / processor 280, the in-band receiver 800, the in-band transmitter 801, the OOB receiver 802 and the OOB transmitter 803 may be coupled to the band 804, for example in relation to BLUETOOTH®, WIFI ™, And provides communication of data and control signals and information over the WWAN transmit frequencies and OOB transmit frequencies.

In preparation for proximity detection using active scanning of OOB radio communications, the controller / processor 280 executes the code from the memory 282 which operates the function of the probe request generator 809. [ Probe request generator 809 generates probe requests intended to discover any femto OOB access points in the radio range of UE 500. Under control of controller / processor 280, probe request generator 809 provides probe requests for transmission by OOB transmitter 803. Controller / processor 280 causes OOB transmitter 803 to transmit probe requests on each available OOB channel. When preparing for proximity detection using passive scanning, the controller / processor 280 controls and monitors the OOB receiver 802 to listen to beacon frames on the OOB channels. The combination of these components provides means for performing a first scan type by a mobile device over a plurality of OOB channels for OOB signals associated with a CSG / Hybrid Femto Access Point, In response to the first detection of the CSG / Hybrid femto access point over the < RTI ID = 0.0 > channel. ≪ / RTI >

The UE 500 waits to receive any responses, whether the responses are for probe requests or detection of beacons through the OOB receiver 802. [ Processor 280 accesses the femto access point information from the femto access point SID 806 stored in the memory 282 and uses the comparator 804 to determine whether probe responses are to be sent to the femto access point SID 806, Or whether it originated from points. The combination of components provides a means for determining whether one or more first OOB responses are originated from a femto OOB access point, wherein one or more first OOB responses are associated with a first scan type .

As a result from the reflector 804, which indicates whether the probe responses are from the femto OOB access points, the controller / processor 280 sends the OOB identification information channel of the femto OOB access point, etc. to the femto OOB access point And generates mapping information for mapping to in-band identifiers. These components of the UE 500 may send one or more OOB identifiers associated with the femto OOB access point to the femto OOB access point in response to determining that one or more first OOB responses are originated from the femto OOB access point. And means for generating mapping information that maps one or more in-band identifiers associated with the access point.

Once the mapping information is generated, the controller / processor 280 updates the femto access point SID 806 in the memory 282 with the mapping information. The combination of these components provides a means for updating the search database stored on the mobile device with the mapping information.

After performing the first scan type, the UE 500 updates the OOB information about the femto OOB access point. At subsequent visits to the location of the femto OOB access points, the UE 500, instead, determines that it has entered the fingerprint area associated with the femto OOB access point, Scan type can be performed. The controller / processor 280 monitors the in-band signals via the in-band receiver 800 and outputs these signals to the fingerprint area information 811 of the PD 812 stored in the memory 282 using the comparator 804. [ . Based on the comparison, the UE 500 determines whether it has entered its fingerprint area to trigger the second scan type. In active scanning aspects, when the UE 500 enters its fingerprint area associated with a femto OOB access point, the controller / processor 280 sends a probe request to the probe request generator 809 ). Probe request generator 809 generates a probe request or broadcast probe request 808 based on whether the information stored in scan list 808 indicates that one or more femto OOB access points are operating on the same channel. Can be generated individually. The controller / processor 280 causes the OOB transmitter 803 to transmit appropriate probe requests only through those channels indicated in the scan list 808 for potential femto OOB access points. In passive scanning aspects, when the UE 500 enters its fingerprint area associated with the femto OOB access point, the controller / processor 280 sends the OOB receiver 802 to listen for beacons on the identified OOB channels, . These components provide a means for performing a second scan type over one or more OOB channels associated with one or more OOB access points identified in the search database stored on the mobile device.

The controller / processor 280 monitors the OOB receiver 802 to receive responses to the second type of scan, either probe responses in active scan aspects or beacons detected in passive scan aspects . The combination of these components provides a means for receiving one or more responses in response to the second scan type.

The controller / processor 280 determines whether the received responses are due to the femto OOB access points. Controller / processor 280 causes the proximity indication to be sent to the serving RNC through the in-band signals transmitted by the in-band transmitter 801 through the serving base station, if it is due to the femto OOB access points. The combination of these components provides a means for reporting proximity indication over an in-band link, wherein the proximity indication indicates that one or more responding femto OOB access points Lt; / RTI > to the mobile device.

Those skilled in the art will appreciate that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and chips that may be referenced throughout the above description may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, Light field or light particles, or any combination thereof.

The functional blocks and modules of FIGS. 4, 6, and 7 may be implemented as processors, electronic devices, hardware devices, electronic components, logic circuits, memories, software codes, firmware codes, Combinations thereof.

Those skilled in the art will further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both . To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described generally in terms of their functionality. Whether such functionality is implemented in hardware or software depends upon the design constraints imposed on the particular application and the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The various illustrative logical blocks, modules, and circuits described in connection with the disclosure herein may be implemented or performed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array Discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but, in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

The steps of an algorithm or method described in connection with the disclosure herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. Alternatively, the storage medium may be integrated into the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.

In one or more exemplary designs, the functions described may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted via one or more instructions or code on a computer readable medium. Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates the transfer of a computer program from one place to another. The storage media may be any general purpose computer or any available media that can be accessed by a special purpose computer. By way of example, and not limitation, such non-volatile computer-readable media can be embodied in a computer-readable medium, such as RAM, ROM, EEPROM, CD- ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, Code means, and may comprise a general purpose computer or special purpose computer or any other medium that can be accessed by a general purpose processor or special purpose processor. In addition, any connection may be considered suitable as a computer-readable medium. For example, if the software is transmitted from a web site, server, or other remote source using wireless technologies such as coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or infrared, radio and microwave , Coaxial cable, fiber optic cable, twisted pair cable, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of such medium. As used herein, a disc and a disc may be a compact disc (CD), a laser disc, an optical disc, a digital versatile disc (DVD), a floppy disc ), And Blu-ray discs, where discs usually reproduce data magnetically, while discs reproduce data optically using a laser. Combinations of the above should also be included within the scope of computer readable media.

The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Accordingly, the disclosure is not intended to be limited to the examples and designs illustrated herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (108)

CLAIMS What is claimed is: 1. A scanning method for a closed subscriber group (CSG) / hybrid femto access point,
Performing a first scan type by a mobile device over a plurality of OOB channels for out-of-band (OOB) signals associated with a CSG / Hybrid Femto Access Point, the first scan type comprising: / In response to detecting a hybrid femto access point;
Determining at the mobile device whether one or more OOB responses are originated from a femto OOB access point, the one or more OOB responses being detected in response to the first scan type;
In response to determining that the one or more OOB responses are originated by the femto OOB access point, sending one or more OOB identifiers associated with the femto OOB access point to one or more of the femto OOB access points associated with the femto OOB access point Creating, by the mobile device, mapping information that maps with excess in-band identifiers; And
And updating the search database stored on the mobile device with the mapping information.
A method of scanning for a CSG / hybrid femto access point. The method according to claim 1,
The first scan type may include:
Transmitting a probe request frame on each OOB channel of the plurality of OOB channels including a broadcast address as a destination and a broadcast ID as an OOB identifier (ID);
Starting a probe timer;
Listening for the one or more OOB responses;
The one or more OOB responses to a transmitted probe request being received on the OOB channel up to a minimum channel time determined by the probe timer;
No activity is detected on the OOB channel until the minimum channel time; or
Activity is detected on the OOB channel until the minimum channel time, and no probe response is received on the OOB channel until the maximum channel time, or that the one or more OOB responses are received One of
Scanning the next OOB channel of the plurality of OOB channels. ≪ RTI ID = 0.0 > [0031] < / RTI > 3. The method of claim 2,
Hybrid femto access point is not the femto OOB access point if no probe response is received on any one of the plurality of OOB channels. ≪ RTI ID = 0.0 > Scanning method. The method according to claim 1,
The first scan type may include:
Listening for the beacon on each OOB channel of the plurality of OOB channels by the mobile device;
Initiating a scan timer; And
And scanning the next OOB channel of the plurality of OOB channels upon expiration of the scan timer. ≪ Desc / Clms Page number 21 > 5. The method of claim 4,
Further comprising determining that the CSG / hybrid femto access point is not the femto OOB access point if no beacon is received on any of the plurality of OOB channels on the OOB channel. Scanning method. The method according to claim 1,
In response to the determination that the CSG / hybrid femto access point is not the femto OOB access point,
Detecting in-band signaling by the mobile device indicating a location of the mobile device within one of the aggregates and intersections of the set of neighbor macro coverage areas around the CSG / hybrid femto access point;
Starting a timer in response to the detecting step; And
And transmitting the proximity indication to the serving base station via in-band signaling if the timer reaches a predetermined time offset
Wherein the proximity indication indicates that the mobile device is proximate to the CSG / Hybrid Femto Access Point. The method according to claim 1,
The mapping information includes:
OOB identification information; And
OOB operation channel
Gt; CSG / Hybrid < / RTI > femto access point. The method according to claim 1,
After performing the first scan type, searching for one or more OOB access points associated with one or more of the femto OOB access points identified in the mapping information stored in the search database, Performing a scan type;
Receiving at the mobile device one or more responses in response to the second scan type; And
Further comprising reporting the proximity indication by the mobile device via an in-band link,
Wherein the proximity indication indicates a proximity of the mobile device to one or more responding femto OOB access points that originated the one or more responses. ≪ RTI ID = 0.0 > . 9. The method of claim 8,
Wherein the second scan type is performed at visits to the coverage area of the CSG / hybrid femto access point following the performance of the first scan type. 9. The method of claim 8,
The second scan type includes:
Hybrid femto access point; and determining the location of the mobile device within one of the aggregates and intersections of the set of neighbor macro coverage areas around the CSG / hybrid femto OOB access point. CLAIMS What is claimed is: 1. A scanning method for a closed subscriber group (CSG) / hybrid femto access point,
Performing a second scan type by the mobile device over one or more OOB channels associated with one or more of the femto out-of-band (OOB) access points identified in the search database stored on the mobile device;
Receiving at the mobile device one or more responses in response to the second scan type; And
And reporting the proximity indication by the mobile device via an in-band link,
Wherein the proximity indication indicates a proximity of the mobile device to one or more responding femto OOB access points that originated the one or more responses.
A method of scanning for a CSG / hybrid femto access point. 12. The method of claim 11,
The second scan type includes:
Listening to beacons on each OOB channel of the one or more OOB channels associated with the one or more femto OOB access points by the mobile device;
Initiating a scan timer; And
Scanning the next OOB channel of the one or more OOB channels upon expiration of the scan timer. ≪ Desc / Clms Page number 19 > 12. The method of claim 11,
The second scan type includes:
Transmitting a probe request on each OOB channel of the one or more OOB channels associated with the one or more femto OOB access points;
Starting a probe timer;
Listening for one or more probe responses on each of the one or more OOB channels; And
And transmitting the probe request on the next OOB channel of the one or more OOB channels upon expiration of the probe timer. ≪ Desc / Clms Page number 19 > 12. The method of claim 11,
The second scan type includes:
Hybrid femto access point is performed after an in-band determination of the location of the mobile device within one of the aggregates and intersections of the set of neighbor macro coverage areas around the CSG / hybrid femto OOB access point. 15. The method of claim 14,
Further comprising delaying performance of the second scan type after expiration of a predetermined time offset,
Wherein the predetermined time offset starts in response to the in-band determination of the location of the mobile device. ≪ Desc / Clms Page number 19 > 16. The method of claim 15,
Wherein the predetermined time offset is based at least in part on a relationship between a femto coverage area of the CSG / hybrid femto OOB access point and a fingerprint coverage area defined by one of an aggregation and an intersection of a set of neighbor macro coverage areas , CSG / Hybrid Femto Access Point. 12. The method of claim 11,
Resetting a counter after receiving the list of one or more femto OOB access points for the search database, the list including OOB identification information associated with the underlying femto OOB access points;
Incrementing the counter if no responses are received in response to the second scan type;
Comparing the incremented counter with a predetermined number;
Re-executing the second scan type after a predetermined time interval in response to the incremented counter not exceeding the predetermined number; And
Further comprising performing a pull scan to update the list in response to the incremented counter exceeding the predetermined number. ≪ Desc / Clms Page number 19 > 18. The method of claim 17,
Wherein the predetermined number is based on the number of second scan type searches and the second scan type searches performed in excess of the number are performed on the one or more femto OOB access points Hybrid femto access point, wherein the CSG / hybrid femto access point does not significantly increase the probability of detecting the CSG / hybrid femto access point. 18. The method of claim 17,
The OOB identification information may include,
Operating channel; And
OOB identifier
Gt; CSG / Hybrid < / RTI > femto access point. 12. The method of claim 11,
Initiating a timer when the second scan type is performed on an OOB channel of the one or more OOB channels;
Listening for said one or more responses;
The one or more responses for the second scan type being received on the OOB channel until a first time window determined by the timer;
No activity is detected on the OOB channel until the first time window; or
Activity is detected on the OOB channel until the minimum channel time, no probe response is received on the OOB channel until the maximum channel time, or one or more OOB responses are received on the OOB channel up to the maximum channel time One of
, Performing the second scan type on the next OOB channel of the one or more OOB channels. ≪ Desc / Clms Page number 13 > 15. The method of claim 14,
For each OOB channel of the one or more OOB channels associated with a plurality of femto OOB access points of the one or more femto OOB access points identified in the search database,
And sending a broadcast probe having a broadcast address and a broadcast OOB identifier to the CSG / hybrid femto access point. 22. The method of claim 21,
Receiving a probe response for the broadcast probe; And
Further comprising prior to reporting the proximity indication, determining which femto OOB access point of the plurality of femto OOB access points on each OOB channel transmitted the received probe response. A method of scanning for a femto access point. 12. The method of claim 11,
Further comprising performing a first scan type by the mobile device prior to performing the second scan type, wherein the first scan type identifies the one or more femto OOB access points, Associate one or more OOB channels with one or more of the identified femto OOB access points and identify the one or more femto OOB access points and associated one or more OOB channels with the mobile device In the search database on the CSG / hybrid femto access point. 24. The method of claim 23,
Wherein performing the first scan type comprises:
Performing the first scan type over a plurality of OOB channels for out-of-band (OOB) signals associated with the CSG / Hybrid Femto Access Point, the first scan type comprising: Performed in response to detecting each of the excess femto OOB access points;
Determining at the mobile device whether one or more OOB responses are originated from a femto OOB access point, the one or more OOB responses being detected in response to the first scan type;
In response to determining that the one or more OOB responses are originated by the femto OOB access point, sending one or more OOB identifiers associated with the femto OOB access point to one or more of the femto OOB access points associated with the femto OOB access point Creating, by the mobile device, mapping information that maps with excess in-band identifiers; And
And updating the search database stored on the mobile device with the mapping information. ≪ Desc / Clms Page number 19 > 25. The method of claim 24,
The mapping information
OOB identification information; And
OOB operation channel
Gt; CSG / Hybrid < / RTI > femto access point. CLAIMS What is claimed is: 1. A method for reporting proximity to a closed subscriber group (CSG) / hybrid femto access point,
Detecting, by the mobile device, the location of the mobile device within at least one neighboring macro coverage areas around the CSG / Hybrid Femto Access Point;
Starting a timer in response to the detection; And
And transmitting a proximity indication to the serving base station via in-band signaling if the timer reaches a predetermined time offset,
Wherein the proximity indication indicates that the mobile device is in proximity to the CSG / Hybrid Femto Access Point.
How to report proximity to a CSG / Hybrid Femto Access Point. 27. The method of claim 26,
Wherein the predetermined time offset is based at least in part on a relationship between a femto coverage area of the CSG / hybrid femto access point and a fingerprint coverage area defined by one of an aggregation and an intersection of a plurality of neighbor macro coverage areas. How to report proximity to a CSG / Hybrid Femto Access Point. CLAIMS What is claimed is: 1. A scanning device for a closed subscriber group (CSG) / hybrid femto access point,
Means for performing a first scan type by a mobile device over a plurality of OOB channels for out-of-band (OOB) signals associated with a CSG / Hybrid Femto Access Point, the first scan type comprising: Performed in response to detecting a CSG / Hybrid Femto Access Point;
Means for determining at the mobile device whether one or more OOB responses are originated from a femto OOB access point, the one or more OOB responses being detected in response to the first scan type;
In response to determining that the one or more OOB responses are originated by the femto OOB access point, sending one or more OOB identifiers associated with the femto OOB access point to one or more of the femto OOB access points associated with the femto OOB access point Means for generating, by the mobile device, mapping information for mapping the in-band identifiers to more than one in-band identifiers; And
And means for updating the search database stored on the mobile device with the mapping information.
A scanning device for a CSG / hybrid femto access point. 29. The method of claim 28,
The first scan type may include:
Means for transmitting a probe request frame on each OOB channel of the plurality of OOB channels including a broadcast ID as a destination and a broadcast ID as an OOB identifier (ID);
Means for starting a probe timer;
Means for listening to said one or more OOB responses;
The one or more OOB responses to a transmitted probe request being received on the OOB channel up to a minimum channel time determined by the probe timer;
No activity is detected on the OOB channel until the minimum channel time; or
Activity is detected on the OOB channel until the minimum channel time, and no probe response is received on the OOB channel until the maximum channel time, or that the one or more OOB responses are received One of
And means for scanning the next OOB channel of the plurality of OOB channels in the case of one of the plurality of OOB channels. 30. The method of claim 29,
Further comprising means for determining that the CSG / hybrid femto access point is not the femto OOB access point if no probe response is received on any one of the plurality of OOB channels. / RTI > 29. The method of claim 28,
The first scan type may include:
Means for listening to the beacon on each OOB channel of the plurality of OOB channels by the mobile device;
Means for starting a scan timer; And
And means for scanning the next OOB channel of the plurality of OOB channels upon expiration of the scan timer. 32. The method of claim 31,
Further comprising means for determining that the CSG / hybrid femto access point is not the femto OOB access point if no beacon is received on any one of the plurality of OOB channels. / RTI > 29. The method of claim 28,
In response to the determination that the CSG / hybrid femto access point is not the femto OOB access point,
Means for detecting, by the mobile device, in-band signaling indicative of the location of the mobile device within one of the aggregates and intersections of the set of neighbor macro coverage areas around the CSG / Hybrid Femto Access Point;
Means for starting a timer in response to the detecting step; And
Means for transmitting a proximity indication to the serving base station via in-band signaling if the timer reaches a predetermined time offset,
Wherein the proximity indication indicates that the mobile device is proximate to the CSG / Hybrid Femto Access Point. 29. The method of claim 28,
The mapping information includes:
OOB identification information; And
OOB operation channel
Gt; CSG / Hybrid < / RTI > femto access point. 29. The method of claim 28,
After performing the first scan type, searching for one or more OOB access points associated with one or more of the femto OOB access points identified in the mapping information stored in the search database, Means for performing a scan type;
Means for receiving at the mobile device one or more responses in response to the second scan type; And
Means for reporting a proximity indication by the mobile device via an in-band link,
Wherein the proximity indication indicates proximity of the mobile device to one or more responding femto OOB access points that have originated the one or more responses. ≪ RTI ID = 0.0 > . 36. The method of claim 35,
Wherein the second scan type comprises scanning for a CSG / hybrid femto access point performed at visits to a coverage area of the CSG / hybrid femto access point subsequent to execution of the means for performing the first scan type Device. 36. The method of claim 35,
The second scan type includes:
Hybrid Femto OOB access point is determined after determining the location of the mobile device within one of a collection and an intersection of a set of neighbor macro coverage areas around the CSG / hybrid femto OOB access point. CLAIMS What is claimed is: 1. A scanning device for a closed subscriber group (CSG) / hybrid femto access point,
Means for performing a second scan type by the mobile device over one or more OOB channels associated with one or more of the femto out-of-band (OOB) access points identified in the search database stored on the mobile device;
Means for receiving at the mobile device one or more responses in response to the second scan type; And
And means for reporting a proximity indication by the mobile device via an in-band link,
Wherein the proximity indication indicates a proximity of the mobile device to one or more responding femto OOB access points that originated the one or more responses.
A scanning device for a CSG / hybrid femto access point. 39. The method of claim 38,
The second scan type includes:
Means for listening by the mobile device for a beacon on each OOB channel of the one or more OOB channels associated with the one or more femto OOB access points;
Means for starting a scan timer; And
And means for scanning the next OOB channel of the one or more OOB channels upon expiration of the scan timer. ≪ Desc / Clms Page number 19 > 39. The method of claim 38,
The second scan type includes:
Means for transmitting a probe request on each OOB channel of the one or more OOB channels associated with the one or more femto OOB access points;
Means for starting a probe timer;
Means for listening for one or more probe responses on each of the one or more OOB channels; And
And means for transmitting the probe request on the next OOB channel of the one or more OOB channels upon expiration of the probe timer. ≪ Desc / Clms Page number 19 > 39. The method of claim 38,
The second scan type includes:
Hybrid femto access point is performed after an in-band determination of the location of the mobile device within one of the aggregates and intersections of the set of neighbor macro coverage areas around the CSG / hybrid femto OOB access point. 42. The method of claim 41,
Means for delaying performance of the second scan type after expiration of a predetermined time offset,
Wherein the predetermined time offset starts in response to the in-band determination of the location of the mobile device. ≪ Desc / Clms Page number 19 > 43. The method of claim 42,
Wherein the predetermined time offset is based at least in part on a relationship between a femto coverage area of the CSG / hybrid femto OOB access point and a fingerprint coverage area defined by one of an aggregation and an intersection of a set of neighbor macro coverage areas , A scanning device for a CSG / hybrid femto access point. 39. The method of claim 38,
Means for resetting a counter after receiving the list of one or more femto OOB access points for the search database, the list including OOB identification information associated with the underlying femto OOB access points;
Means for incrementing the counter if no responses are received in response to the second scan type;
Means for comparing the incremented counter with a predetermined number;
Means for re-executing the second scan type after a predetermined time interval in response to the incremented counter not exceeding the predetermined number; And
Further comprising means for performing a full scan to update the list in response to the incremented counter exceeding the predetermined number. ≪ Desc / Clms Page number 19 > 45. The method of claim 44,
Wherein the predetermined number is based on the number of second scan type searches and the second scan type searches performed in excess of the number are performed on the one or more femto OOB access points Gt; CSG / Hybrid < / RTI > femto access point. 45. The method of claim 44,
The OOB identification information may include,
Operating channel; And
OOB identifier
Gt; CSG / Hybrid < / RTI > femto access point. 39. The method of claim 38,
Means for starting a timer if the second scan type is performed on an OOB channel of the one or more OOB channels;
Means for listening to said one or more responses;
The one or more responses for the second scan type being received on the OOB channel until a first time window determined by the timer;
No activity is detected on the OOB channel until the first time window; or
Activity is detected on the OOB channel until the minimum channel time, no probe response is received on the OOB channel until the maximum channel time, or one or more OOB responses are received on the OOB channel up to the maximum channel time One of
Further comprising means for performing the second scan type on the next OOB channel of the one or more OOB channels. ≪ Desc / Clms Page number 13 > 42. The method of claim 41,
For each OOB channel of the one or more OOB channels associated with a plurality of femto OOB access points of the one or more femto OOB access points identified in the search database,
And means for transmitting a broadcast probe having a broadcast address and a broadcast OOB identifier. ≪ Desc / Clms Page number 19 > 49. The method of claim 48,
Means for receiving a probe response to the broadcast probe; And
Further comprising means for determining, before reporting the proximity indication, which femto OOB access point of the plurality of femto OOB access points on each OOB channel has transmitted a received probe response, the CSG / A scanning device for a hybrid femto access point. 39. The method of claim 38,
Further comprising means executable by the mobile device to perform a first scan type prior to the execution of the means for performing the second scan type, wherein the first scan type comprises one or more femto OOB Identify one or more OOB access points, associate the one or more OOB channels with one or more of the identified femto OOB access points, identify one or more femto OOB access points and associated one or more OOBs ≪ / RTI > storing the identification of the channels in the search database on the mobile device. 51. The method of claim 50,
Wherein the means for performing the first scan type comprises:
Means for performing the first scan type over a plurality of OOB channels for out-of-band (OOB) signals associated with the CSG / Hybrid Femto Access Point, the first scan type comprising: Performed in response to detecting each of the excess femto OOB access points;
Means for determining at the mobile device whether one or more OOB responses are originated from a femto OOB access point, the one or more OOB responses being detected in response to the first scan type;
In response to determining that the one or more OOB responses are originated by the femto OOB access point, sending one or more OOB identifiers associated with the femto OOB access point to one or more of the femto OOB access points associated with the femto OOB access point Means for generating, by the mobile device, mapping information for mapping the in-band identifiers to more than one in-band identifiers; And
And means for updating the search database stored on the mobile device with the mapping information. ≪ Desc / Clms Page number 19 > 52. The method of claim 51,
The mapping information
OOB identification information; And
OOB operation channel
Gt; CSG / Hybrid < / RTI > femto access point. An apparatus for reporting proximity to a closed subscriber group (CSG) / hybrid femto access point,
Means for detecting, by the mobile device, the location of the mobile device within at least one neighboring macro coverage areas around the CSG / Hybrid Femto Access Point;
Means for starting a timer in response to the results of the means for detecting; And
Means for transmitting a proximity indication to the serving base station via in-band signaling when the timer reaches a predetermined time offset,
Wherein the proximity indication indicates that the mobile device is in proximity to the CSG / Hybrid Femto Access Point.
Device reporting proximity to CSG / Hybrid Femto Access Point. 54. The method of claim 53,
Wherein the predetermined time offset is based at least in part on a relationship between a femto coverage area of the CSG / hybrid femto access point and a fingerprint coverage area defined by one of an aggregation and an intersection of a plurality of neighbor macro coverage areas. Device reporting proximity to CSG / Hybrid Femto Access Point. A computer program product for wireless communications in a wireless network,
A non-transitory computer readable medium having program code recorded thereon,
The program code comprises:
Program code for performing a first scan type by a mobile device over a plurality of OOB channels for out-of-band (OOB) signals associated with a CSG / Hybrid Femto Access Point, the first scan type comprising: Performed in response to detecting the CSG / Hybrid Femto Access Point;
Program code for determining at the mobile device whether one or more OOB responses are originated from a femto OOB access point, the one or more OOB responses being detected in response to the first scan type;
In response to determining that the one or more OOB responses are originated by the femto OOB access point, sending one or more OOB identifiers associated with the femto OOB access point to one or more of the femto OOB access points associated with the femto OOB access point Program code for generating, by the mobile device, mapping information for mapping the in-band identifiers to an in-band identifier; And
And program code for updating the search database stored on the mobile device with the mapping information.
Computer program stuff. 56. The method of claim 55,
The first scan type may include:
Program code for transmitting a probe request frame on each OOB channel of the plurality of OOB channels including a broadcast ID as a destination and a broadcast ID as an OOB identifier (ID);
Program code for starting a probe timer;
Program code for listening to said one or more OOB responses;
The one or more OOB responses to a transmitted probe request being received on the OOB channel up to a minimum channel time determined by the probe timer;
No activity is detected on the OOB channel until the minimum channel time; or
Activity is detected on the OOB channel until the minimum channel time, and no probe response is received on the OOB channel until the maximum channel time, or that the one or more OOB responses are received One of
The program code for scanning the next OOB channel of the plurality of OOB channels. 57. The method of claim 56,
Further comprising program code for determining that the CSG / hybrid femto access point is not the femto OOB access point if no probe response is received on any one of the plurality of OOB channels. 56. The method of claim 55,
The first scan type may include:
Program code for listening to the beacon on the OOB channel of each of the plurality of OOB channels by the mobile device;
Program code for starting a scan timer; And
And program code for scanning the next OOB channel of the plurality of OOB channels upon expiration of the scan timer. 59. The method of claim 58,
Further comprising program code for determining that the CSG / hybrid femto access point is not the femto OOB access point if no beacon is received on any of the plurality of OOB channels. 56. The method of claim 55,
In response to the determination that the CSG / hybrid femto access point is not the femto OOB access point,
Program code for detecting, by the mobile device, in-band signaling indicating a location of the mobile device within one of the aggregates and intersections of the set of neighbor macro coverage areas around the CSG / hybrid femto access point;
Program code for starting a timer in response to said detecting step; And
And program code for transmitting the proximity indication to the serving base station via in-band signaling if the timer reaches a predetermined time offset
Wherein the proximity indication indicates that the mobile device is proximate to the CSG / Hybrid Femto Access Point. 56. The method of claim 55,
The mapping information includes:
OOB identification information; And
OOB operation channel
Or one or more of the following:. 56. The method of claim 55,
After performing the first scan type, searching for one or more OOB access points associated with one or more of the femto OOB access points identified in the mapping information stored in the search database, Program code for performing a scan type;
Program code for receiving at the mobile device one or more responses in response to the second scan type; And
Further comprising program code for reporting a proximity indication by the mobile device via an in-band link,
Wherein the proximity indication indicates a proximity of the mobile device to one or more responding femto OOB access points that originated the one or more responses. 63. The method of claim 62,
Wherein the second scan type is performed upon visits to the coverage area of the CSG / hybrid femto access point following execution of the program code for performing the first scan type. 63. The method of claim 62,
The second scan type includes:
Wherein the location of the mobile device is determined within one of an aggregation and intersection of a set of neighboring macro coverage areas around the CSG / Hybrid Femto OOB access point. A computer program product for wireless communications in a wireless network,
A non-transitory computer readable medium having program code recorded thereon,
The program code comprises:
Program code for performing a second scan type by the mobile device over one or more OOB channels associated with one or more of the femto out-of-band (OOB) access points identified in the search database stored on the mobile device;
Program code for receiving at the mobile device one or more responses in response to the second scan type; And
And program code for reporting a proximity indication by the mobile device via an in-band link,
Wherein the proximity indication indicates a proximity of the mobile device to one or more responding femto OOB access points that originated the one or more responses.
Computer program stuff. 66. The method of claim 65,
The second scan type includes:
Program code for listening to the beacon on each OOB channel of the one or more OOB channels associated with the one or more femto OOB access points by the mobile device;
Program code for starting a scan timer; And
And program code for scanning the next OOB channel of the one or more OOB channels upon expiration of the scan timer. 66. The method of claim 65,
The second scan type includes:
Program code for transmitting a probe request on each OOB channel of the one or more OOB channels associated with the one or more femto OOB access points;
Program code for starting a probe timer;
Program code for listening to one or more probe responses on each of the one or more OOB channels; And
And program code for transmitting the probe request on the next OOB channel of the one or more OOB channels upon expiration of the probe timer. 66. The method of claim 65,
The second scan type includes:
In-band determination of the location of the mobile device within one of a collection and an intersection of a set of neighbor macro coverage areas around a CSG / Hybrid Femto OOB access point. 69. The method of claim 68,
Further comprising program code for delaying performance of the second scan type after expiration of a predetermined time offset,
Wherein the predetermined time offset begins in response to the in-band determination of the location of the mobile device. 70. The method of claim 69,
Wherein the predetermined time offset is based at least in part on a relationship between a femto coverage area of the CSG / hybrid femto OOB access point and a fingerprint coverage area defined by one of an aggregation and an intersection of a set of neighbor macro coverage areas , Computer program stuff. 66. The method of claim 65,
Program code for resetting a counter after receiving the list of one or more femto OOB access points for the search database, the list including OOB identification information associated with the underlying femto OOB access points;
Program code for incrementing the counter if no responses are received in response to the second scan type;
Program code for comparing the incremented counter with a predetermined number;
Program code for re-executing the second scan type after a predetermined time interval in response to the incremented counter not exceeding the predetermined number; And
And program code for performing a pull scan to update the list in response to the incremented counter exceeding the predetermined number. 72. The method of claim 71,
Wherein the predetermined number is based on the number of second scan type searches and the second scan type searches performed in excess of the number are performed on the one or more femto OOB access points The computer program product does not significantly increase the probability of detecting the presence or absence of the computer. 72. The method of claim 71,
The OOB identification information may include,
Operating channel; And
OOB identifier
Or one or more of the following:. 66. The method of claim 65,
Program code for starting a timer when the second scan type is performed on an OOB channel of the one or more OOB channels;
Program code for listening to said one or more responses;
The one or more responses for the second scan type being received on the OOB channel until a first time window determined by the timer;
No activity is detected on the OOB channel until the first time window; or
Activity is detected on the OOB channel until the minimum channel time, no probe response is received on the OOB channel until the maximum channel time, or one or more OOB responses are received on the OOB channel up to the maximum channel time One of
The program code for performing the second scan type on the next OOB channel of the one or more OOB channels. 69. The method of claim 68,
For each OOB channel of the one or more OOB channels associated with a plurality of femto OOB access points of the one or more femto OOB access points identified in the search database,
And program code for transmitting a broadcast probe having a broadcast address and a broadcast OOB identifier. 78. The method of claim 75,
Program code for receiving a probe response to the broadcast probe; And
Further comprising program code for determining which femto OOB access point of the plurality of femto OOB access points on each OOB channel transmitted the received probe response before reporting the proximity indication. Program stuff. 66. The method of claim 65,
Further comprising program code executable by the mobile device to perform a first scan type prior to execution of the program code for performing the second scan type, Identifying one or more femto OOB access points, associating the one or more OOB channels with one or more of the identified femto OOB access points, and associating the one or more femto OOB access points and associated one or more Stores in the search database on the mobile device an identification of the OOB channels of the mobile device. 78. The method of claim 77,
Wherein the program code for performing the first scan type comprises:
Program code for performing the first scan type over a plurality of OOB channels for out-of-band (OOB) signals associated with a CSG / Hybrid Femto Access Point, the first scan type comprising: Performed in response to detecting each of the excess femto OOB access points;
Program code for determining at the mobile device whether one or more OOB responses are originated from a femto OOB access point, the one or more OOB responses being detected in response to the first scan type;
In response to determining that the one or more OOB responses are originated by the femto OOB access point, sending one or more OOB identifiers associated with the femto OOB access point to one or more of the femto OOB access points associated with the femto OOB access point Program code for generating, by the mobile device, mapping information for mapping the in-band identifiers to an in-band identifier; And
And program code for updating the search database stored on the mobile device with the mapping information. 79. The method of claim 78,
The mapping information
OOB identification information; And
OOB operation channel
Or one or more of the following:. A computer program product for wireless communications in a wireless network,
A non-transitory computer readable medium having program code recorded thereon,
The program code comprises:
Program code for detecting, by the mobile device, the location of the mobile device within at least one neighboring macro coverage areas around the CSG / Hybrid Femto Access Point;
Program code for starting an executable timer in response to execution results of the program code for detection; And
And program code for transmitting a proximity indication to the serving base station via in-band signaling when the timer reaches a predetermined time offset,
Wherein the proximity indication indicates that the mobile device is in proximity to the CSG / Hybrid Femto Access Point.
Computer program stuff. 79. The method of claim 80,
Wherein the predetermined time offset is based at least in part on a relationship between a femto coverage area of the CSG / hybrid femto access point and a fingerprint coverage area defined by one of an aggregation and an intersection of a plurality of neighbor macro coverage areas. Computer program stuff. An apparatus configured for wireless communication,
At least one processor; And
A memory coupled to the at least one processor,
Wherein the at least one processor comprises:
Performing a first scan type by a mobile device over a plurality of OOB channels for out-of-band (OOB) signals associated with a CSG / Hybrid Femto Access Point, the first scan type comprising: Performed in response to detecting a hybrid femto access point;
Determine at the mobile device whether one or more OOB responses are originated from a femto OOB access point; the one or more OOB responses are detected in response to the first scan type;
In response to determining that the one or more OOB responses are originated by the femto OOB access point, sending one or more OOB identifiers associated with the femto OOB access point to one or more of the femto OOB access points associated with the femto OOB access point Generate mapping information by the mobile device to map the in-band identifiers with excess; And
And update the search database stored on the mobile device with the mapping information.
A device configured for wireless communication. 83. The method of claim 82,
The first scan type may include:
Transmitting a probe request frame on each OOB channel of the plurality of OOB channels including a broadcast ID as a destination and a broadcast ID as an OOB identifier (ID);
Start the probe timer;
Listening for said one or more OOB responses;
The one or more OOB responses to a transmitted probe request being received on the OOB channel up to a minimum channel time determined by the probe timer;
No activity is detected on the OOB channel until the minimum channel time; or
Activity is detected on the OOB channel until the minimum channel time, and no probe response is received on the OOB channel until the maximum channel time, or that the one or more OOB responses are received One of
For scanning the next OOB channel of the plurality of OOB channels,
Wherein the at least one processor comprises a configuration of the at least one processor. 85. The method of claim 83,
Wherein the at least one processor comprises:
Configured to determine that the CSG / hybrid femto access point is not the femto OOB access point if no probe response is received on any one of the plurality of OOB channels. 83. The method of claim 82,
The first scan type may include:
Listening for the beacon on each OOB channel of the plurality of OOB channels by the mobile device;
Start a scan timer; And
For scanning the next OOB channel of the plurality of OOB channels at the expiration of the scan timer
Wherein the at least one processor comprises a configuration of the at least one processor. 92. The method of claim 85,
Wherein the at least one processor comprises:
And configured to determine that the CSG / hybrid femto access point is not the femto OOB access point if no beacon is received on any of the plurality of OOB channels. 83. The method of claim 82,
Wherein the at least one processor comprises:
In response to the determination that the CSG / hybrid femto access point is not the femto OOB access point,
Detecting in-band signaling by the mobile device indicating the location of the mobile device within one of the aggregates and intersections of the set of neighbor macro coverage areas around the CSG / hybrid femto access point;
Start a timer in response to the detecting step; And
Wherein the timer is further configured to transmit the proximity indication to the serving base station via in-band signaling when the timer reaches a predetermined time offset,
Wherein the proximity indication indicates that the mobile device is in proximity to the CSG / Hybrid Femto Access Point. 83. The method of claim 82,
The mapping information includes:
OOB identification information; And
OOB operation channel
≪ / RTI > wherein the wireless communication device is configured for wireless communication. 83. The method of claim 82,
Wherein the at least one processor comprises:
After performing the first scan type, searching for one or more OOB access points associated with one or more of the femto OOB access points identified in the mapping information stored in the search database, Perform a scan type;
Receive at the mobile device one or more responses in response to the second scan type; And
Wherein the mobile device is further configured to report proximity indications via the in-
Wherein the proximity indication indicates a proximity of the mobile device to one or more responding femto OOB access points that originated the one or more responses. 90. The method of claim 89,
Wherein the second scan type is performed upon visits to the coverage area of the CSG / hybrid femto access point following the performance of the first scan type. 90. The method of claim 89,
The second scan type includes:
Wherein the determination is performed after determining the location of the mobile device within one of an aggregation and an intersection of a set of neighbor macro coverage areas around the CSG / Hybrid Femto OOB access point. An apparatus configured for wireless communication,
At least one processor; And
A memory coupled to the at least one processor,
Wherein the at least one processor comprises:
Performing a second scan type by the mobile device over one or more OOB channels associated with one or more of the identified femto out-of-band (OOB) access points in the search database stored on the mobile device;
Receive at the mobile device one or more responses in response to the second scan type; And
Wherein the mobile device is configured to report proximity indications via the in-
Wherein the proximity indication indicates a proximity of the mobile device to one or more responding femto OOB access points that originated the one or more responses.
A device configured for wireless communication. 93. The method of claim 92,
The second scan type includes:
Listen to the beacon on each OOB of the one or more OOB channels associated with the one or more femto OOB access points by the mobile device;
Start a scan timer; And
For scanning the next OOB channel of the one or more OOB channels at the expiration of the scan timer
Wherein the at least one processor comprises a configuration of the at least one processor. 93. The method of claim 92,
The second scan type includes:
Transmit a probe request on each OOB channel of the one or more OOB channels associated with the one or more femto OOB access points;
Start the probe timer;
Listen for one or more probe responses on each of the one or more OOB channels; And
And for transmitting the probe request on the next OOB channel of the one or more OOB channels upon expiration of the probe timer.
Wherein the at least one processor comprises a configuration of the at least one processor. 93. The method of claim 92,
The second scan type includes:
In-band determination of the location of the mobile device within one of a collection and an intersection of a set of neighbor macro coverage areas around a CSG / Hybrid Femto OOB access point. 95. The method of claim 95,
Wherein the at least one processor comprises:
And to delay execution of the second scan type after expiration of a predetermined time offset,
Wherein the predetermined time offset begins in response to the in-band determination of the location of the mobile device. 96. The method of claim 96,
Wherein the predetermined time offset is based at least in part on a relationship between a femto coverage area of the CSG / hybrid femto OOB access point and a fingerprint coverage area defined by one of an aggregation and an intersection of a set of neighbor macro coverage areas , A device configured for wireless communication. 93. The method of claim 92,
Wherein the at least one processor comprises:
Reset the counter after receiving the list of one or more femto OOB access points for the search database, the list including OOB identification information associated with the underlying femto OOB access points;
Incrementing the counter if no responses are received in response to the second scan type;
Compare the incremented counter with a predetermined number;
Re-executing the second scan type after a predetermined time interval in response to the incremented counter not exceeding the predetermined number; And
And configured to perform a pull scan to update the list in response to the incremented counter exceeding the predetermined number. 98. The method of claim 98,
Wherein the predetermined number is based on the number of second scan type searches and the second scan type searches performed in excess of the number are performed on the one or more femto OOB access points Wherein the probability of detecting the first wireless communication is not significantly increased. 98. The method of claim 98,
The OOB identification information may include,
Operating channel; And
OOB identifier
≪ / RTI > wherein the wireless communication device is configured for wireless communication. 93. The method of claim 92,
Wherein the at least one processor comprises:
Start a timer if the second scan type is performed on an OOB channel of the one or more OOB channels;
Listening for said one or more responses;
The one or more responses for the second scan type being received on the OOB channel until a first time window determined by the timer;
No activity is detected on the OOB channel until the first time window; or
Activity is detected on the OOB channel until the minimum channel time, no probe response is received on the OOB channel until the maximum channel time, or one or more OOB responses are received on the OOB channel up to the maximum channel time One of
Wherein the one or more OOB channels are further configured to perform the second scan type on the next OOB channel of the one or more OOB channels. 95. The method of claim 95,
Wherein the at least one processor comprises:
For each OOB channel of the one or more OOB channels associated with a plurality of femto OOB access points of the one or more femto OOB access points identified in the search database,
And configured to transmit a broadcast probe having a broadcast address and a broadcast OOB identifier. 103. The method of claim 102,
Wherein the at least one processor comprises:
Receive a probe response to the broadcast probe; And
Wherein the femto OOB access point is further configured to determine, before reporting the proximity indication, which of the plurality of femto OOB access points on each OOB channel transmitted the received probe response. Configured device. 93. The method of claim 92,
Wherein the at least one processor comprises:
Wherein the first scan type is further configured to perform a first scan type by the mobile device prior to performing the second scan type, wherein the first scan type identifies the one or more femto OOB access points, Associating the excess OOB channels with one or more of the identified femto OOB access points and providing an identification of the one or more femto OOB access points and associated one or more OOB channels on the mobile device A device configured for wireless communication to store in a search database. 105. The method of claim 104,
Wherein the configuration of the at least one processor for performing the first scan type comprises:
Performing the first scan type over a plurality of OOB channels for out-of-band (OOB) signals associated with a CSG / Hybrid Femto Access Point, the first scan type comprising: Performed in response to detecting each of the femto OOB access points;
Determine at the mobile device whether one or more OOB responses are originated from a femto OOB access point; the one or more OOB responses are detected in response to the first scan type;
In response to determining that the one or more OOB responses are originated by the femto OOB access point, sending one or more OOB identifiers associated with the femto OOB access point to one or more of the femto OOB access points associated with the femto OOB access point Generate mapping information by the mobile device to map the in-band identifiers with excess; And
And for updating the search database stored on the mobile device with the mapping information
≪ / RTI > wherein the device is configured for wireless communication. 105. The method of claim 105,
The mapping information
OOB identification information; And
OOB operation channel
≪ / RTI > wherein the wireless communication device is configured for wireless communication. An apparatus configured for wireless communication,
At least one processor; And
A memory coupled to the at least one processor,
Wherein the at least one processor comprises:
Detecting, by the mobile device, the location of the mobile device within at least one neighboring macro coverage areas around the CSG / Hybrid Femto Access Point;
Start a timer in response to the detection; And
And transmit the proximity indication to the serving base station via in-band signaling if the timer reaches a predetermined time offset,
Wherein the proximity indication indicates that the mobile device is in proximity to the CSG / Hybrid Femto Access Point.
A device configured for wireless communication. 107. The method of claim 107,
Wherein the predetermined time offset is based at least in part on a relationship between a femto coverage area of the CSG / hybrid femto access point and a fingerprint coverage area defined by one of an aggregation and an intersection of a plurality of neighbor macro coverage areas. A device configured for wireless communication.

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