| Patent application number | Description | Published |
|---|
| 20100203890 | METHOD AND APPARATUS FOR FACILITATING A BEACON-ASSISTED HANDOVER TO A HOME NODE-B FOR USERS ON AN ACTIVE CALL - Methods, apparatuses, and computer program products are disclosed for facilitating a beacon-assisted handover from a macro network to a femto cell during an active call. A femto cell management system assigns a unique identifier to a femto cell, which the femto cell utilizes to broadcast a beacon at a frequency different than the operating frequency of the femto cell. A wireless terminal receives a control message from the macro network directing the wireless terminal to scan particular frequencies. The wireless terminal subsequently provides a report to the macro network identifying attributes ascertained from the scan, which includes attributes associated with the beacon. The macro network then performs a handover from the macro network to the femto cell as a function of the attributes. | 08-12-2010 |
| 20100203891 | METHOD AND APPARATUS FOR FACILITATING A HAND-IN OF USER EQUIPMENT TO FEMTO CELLS - Aspects are disclosed for facilitating a hand-in to a femto cell. An identifier is assigned to a femto cell in which the identifier is based on a scrambling parameter and a timing parameter. A relationship between the identifier and the femto cell is then communicated. In another embodiment, a user equipment report is received, which includes attributes related to a signal broadcast by a femto cell. An identifier associated with the femto cell is ascertained from an attribute included in the report. The femto cell is then identified based on the identifier. In a further embodiment, a timing parameter is received, and a scrambling parameter is set. A signal including the scrambling parameter is then broadcast according to an offset related to the timing parameter. In yet another embodiment, a femto cell is detected during an active call. An identifier associated with the femto cell is then ascertained and reported. | 08-12-2010 |
| 20100203892 | SYSTEM AND METHOD FOR INTERFERENCE BEACON TRANSMISSION - Various systems and methods for interference beacon transmission are disclosed. In one embodiment, an apparatus for initiating cell reselection in a wireless communication device, such as a HNB, comprises a processor configured to determine a first frequency at which one or more wireless communication devices communicate with a first cell and a transceiver configured to transmit an interference beacon at the first frequency configured to at least partially interfere with communications at the first frequency and initiate a cell reselection process by at least one of the wireless communication devices. | 08-12-2010 |
| 20110287787 | LOCATION-BASED SERVICE BASED ON ACCESS POINT IDENTIFIERS - An access point transmits cell information via a physical layer channel. In some cases, the cell information sent on the physical layer channel comprises a physical layer identifier. For example, a physical layer channel may be modulated based on a cell identifier and/or a closed subscriber group identifier associated with the access point. Through the use of this cell information, an access point may be quickly identified for mobility and/or interference management operations. In addition, this cell information may be used for finger-printing operations. | 11-24-2011 |
| 20110294493 | MODULATING CELL INFORMATION ON A PHYSICAL CHANNEL - An access point transmits cell information via a physical layer channel. In some cases, the cell information sent on the physical layer channel comprises a physical layer identifier. For example, a physical layer channel may be modulated based on a cell identifier and/or a closed subscriber group identifier associated with the access point. Through the use of this cell information, an access point may be quickly identified for mobility and/or interference management operations. In addition, this cell information may be used for finger-printing operations. | 12-01-2011 |
| 20120021788 | METHOD AND APPARATUS FOR HANDOVER OF DEVICE TO MITIGATE UPLINK INTERFERENCE IN FEMTOCELL DEPLOYMENTS - Methods and apparatuses are provided for determining whether to handover a device to mitigate uplink interference while achieving acceptable uplink service quality in a wireless network. One or more parameters related to a device can be evaluated to determine whether to handover the device, such as a number of transmission power reports received from the device over a period of time, a frame error rate, setpoint, or power control commands related to the uplink of the device, a received pilot signal strength at the device, an uplink throughput or buffer size at the device, etc., from which transmit power information of the device can be inferred for determining whether the device potentially interferes with access points or devices. Based on the one or more parameters, an access point can determine whether handing over the device may mitigate such uplink interference while ensuring uplink service quality, and accordingly handover the device. | 01-26-2012 |
| 20120039265 | CONTROLLING ACCESS POINT TRANSMIT POWER BASED ON RECEIVED ACCESS TERMINAL MESSAGES - Transmit power for an access point is controlled based on information received by the access point. For example, an access point may employ one or more algorithms that use messages received from nearby access terminals to maintain an acceptable tradeoff between providing an adequate coverage area for access point transmissions and mitigating interference that these transmissions cause at nearby access terminals. Here, the access point may employ a network listen-based algorithm upon initialization of the access terminal to provide preliminary transmit power control until sufficient information is collected for another transmit power control algorithm (e.g., an access terminal assisted algorithm). Also, the access terminal may employ an active access terminal protection scheme to mitigate interference the access point may otherwise cause to a nearby access terminal that is in active communication with another access point. | 02-16-2012 |
| 20120046026 | CONTROLLING ACCESS POINT TRANSMIT POWER BASED ON EVENT-TRIGGERED ACCESS TERMINAL MESSAGING - Transmit power for an access point is controlled based on measurement reports received by the access point from one or more access terminals that are not currently being served by the access point. In some aspects, transmit power is controlled based on the number of received messages that correspond to a particular event. In some aspects, transmit power is controlled based on the contents of the received messages. For example, the access point may use signal strength information included in the messages to determine a level of transmit power that mitigates interference at a defined subset of reporting access terminals. | 02-23-2012 |
| 20120046063 | CONTROLLING ACCESS POINT TRANSMIT POWER BASED ON ACCESS TERMINAL RANKING - Transmit power for an access point is controlled based on measurement reports received by the access point from one or more access terminals that are not currently being served by the access point. In some aspects, transmit power is controlled based on the number of received messages that correspond to a particular event. In some aspects, transmit power is controlled based on the contents of the received messages. For example, the access point may use signal strength information included in the messages to determine a level of transmit power that mitigates interference at a defined subset of reporting access terminals. | 02-23-2012 |
