Abstract:
Handover parameter settings are automatically adapted in access points in a system to improve handover performance. Reactive detection techniques are employed for identifying different types of handover-related failures and adapting handover parameters based on this detection. Messaging schemes are also employed for providing handover-related information to access points. Proactive detection techniques also may be used for identifying conditions that may lead to handover-related failures and then adapting handover parameters in an attempt to prevent such handover-related failures. Ping-ponging may be mitigated by adapting handover parameters based on analysis of access terminal visited cell history acquired by access points in the system. In addition, configurable parameters (e.g., timer values) may be used to detect handover-related failures.
Abstract:
Disclosed are systems and methods for dynamic power regulation in small cells. In one aspect, a system is configured to determining at least one mobility metric indicative of at least one access terminal mobility at the cell. The system then configured to determine whether the value of mobility metric is acceptable. When the value of mobility metric is unacceptable, the system is configured to increase the transmit power of the cell until the value of mobility metric becomes acceptable. If the value of mobility metric does not become acceptable after increasing the transmit power of the cell above a threshold, the system is configured to decrease the transmit power of the cell.
Abstract:
Methods and apparatuses are described for providing a shared eNodeB that is configured to provide shared network access to UEs associated with disparate cellular service providers, or operators, over one or more unlicensed frequency bands in a multi-operator, heterogeneous, and dual-connectivity-compatible system. In an example methodology, a shared eNodeB may establish a secondary communication link with a first user equipment associated with a first operators primary cell, then may establish another secondary communication link with a second UE associated with a second operators primary cell, wherein the shared eNodeB is configured to communicate with both a first core network associated with the first operator and a second core network associated with the second operator, and may communicate wirelessly over one or more unlicensed frequency bands with both the first UE via the first communication link and the second UE via the second communication link.
Abstract:
Systems and methodologies are described that provide techniques for generating and utilizing reverse link feedback for interference management in a wireless communication system. Channel quality and/or interference data can be obtained by a terminal from a serving sector and one or more neighboring sectors, from which an interference-based headroom value can be computed that contains interference caused by the terminal to an allowable range. The interference-based headroom value can then be provided with power amplifier (PA) headroom feedback to the serving sector. Based on the provided feedback from the terminal, the serving sector can assign resources for use by the terminal in communication with the serving sector. Further, the serving sector may choose to honor or disregard a received interference-based power value based on quality of service and/or other system parameters.
Abstract:
Measurements are conducted on one or more carriers in a case where an access terminal supports reception on multiple carriers. Upon determining that an access terminal is capable of concurrently receiving on a given set of carriers, a measurement is conducted on one or more carriers of the set while receiving on or more other carriers of the set. Conversely, upon determining that an access terminal is not capable of concurrently receiving on a given set of carriers, a measurement is conducted on one or more carriers of the set while not receiving on or more other carriers of the set. In addition, data transfers to or from an access terminal on a carrier may be restricted (e.g., data transfers not scheduled or only low priority data transfers scheduled) during one or more subframes before or after the access terminal conducts a measurement on another carrier.
Abstract:
The subject technology provides for initiating a communication interface in a wireless communication system. In an embodiment, a neighbor node is discovered at an access point. The subject technology receives, via a network message in response to discovering the neighbor node, an address indication associated with the neighbor node for configuration of the communication interface. It is then determined whether to initiate one of a direct communication interface or indirect communication interface for communication with the neighbor node based on the address indication in the received network message.
Abstract:
Techniques are described for handover decisions based on an absolute channel quality of a serving cell. For example, there is provided a method that involves generating a set of handover parameters based on a report of serving cell signal quality to avoid ping-ponging effects of an access terminal between a serving cell and another cell. A network entity receives a report regarding a serving cell signal quality from a reporting entity. A set of parameters is defined for a network event and sent to an access terminal, where the set of parameters is based at least in part on the received report. The set of parameters for the network event is sent to the access terminal.
Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus communicates with a primary serving cell via a first radio, detects a presence of a target cell, sends a first message to the primary serving cell indicating the detected presence of the target cell, receives a command from the primary serving cell to add the target cell as a secondary serving cell, and communicates with at least one of the primary serving cell or the target cell via a second radio to facilitate a handover to the target cell. The first radio and the second radio operate on a same frequency. A downlink control channel of the primary serving cell is not used to schedule a target cell downlink transmission. An uplink control channel to the primary serving cell is not used to provide an acknowledgment of the target cell downlink transmission. The uplink control channel to the primary serving cell is not used to provide channel side information for the target cell downlink transmission.
Abstract:
This disclosure provides systems, methods, and devices for wireless communication that provides operational control signaling in support of interoperability functionalities with surveillance infrastructure. In a first aspect, a method of wireless communication includes establishing communication between a network element and one or more multimedia/security/surveillance (MSS) entities using an MSS interface. The network entity may transmit operational control signals to the MSS entities via the MSS interface. The MSS entities may then act on the operational control signals and transmit MSS data to the network element via the MSS interface. Other aspects and features are also claimed and described.
Abstract:
The present disclosure provide various methods, computer-readable media, and apparatuses for managing communication paths, which may include at least one direct communication path between UEs, such as a sidelink communication path. Illustratively, an apparatus of the present disclosure may be a UE or component thereof that is configured to establish a direct wireless communication link and an indirect wireless communication link with another UE to carry data associated with one traffic stream. Further, the apparatus may be configured to communicate with the other UE over at least one of the direct communication link or the indirect communication link after the direct communication link and the indirect communication link are established with the other UE.