Abstract:
Methods, systems, and devices for wireless communication are described. A base station may perform an access procedure to obtain access to a shared radio frequency spectrum band during a measurement window and generate a synchronization signal (SS) burst comprising a plurality of SS blocks. The base station may perform a beam sweeping first transmission of the SS burst over the shared radio frequency spectrum based at least in part on the access procedure. In the first transmission or a second transmission, the base station may transmit at least one of a first indication of a time of access to the shared radio frequency spectrum band with respect to the measurement window, a second indication of a transmission beam associated with the SS block, and a third indication of a quantity of remaining SS blocks from the plurality of SS blocks to follow the SS block in the measurement window.
Abstract:
A base station includes a base unit and a plurality of remote antenna units (RAUs). Each of the RAUs includes a physical layer circuit (PHY). The PHYs are configured to each use the same physical layer identifier, but each PHY includes its own hardware for supporting users in the coverage area of that PHY. The base unit controls resource allocation for the RAUs to increase the capacity of the base station and/or reduce interference between PHYs.
Abstract:
Techniques for transmitting power decision pilots are described. A transmitter (e.g., a base station or a UE) may transmit a power decision pilot to indicate a transmit power level that it will use on subsequent time-frequency resources. In one design, the transmitter may determine a set of time-frequency resources to use for transmitting the power decision pilot, determine the transmit power level for the power decision pilot based on the transmit power level to use for data transmission, and transmit the power decision pilot on the set of time-frequency resources to indicate the transmit power level to use for data transmission on the subsequent time-frequency resources. A receiver (e.g., a UE or a base station) may receive power decision pilots from a set of transmitters and may estimate channel quality that the receiver can expect on the subsequent time-frequency resources based on the power decision pilots.
Abstract:
Techniques for admitting user equipments (UEs) to wireless systems are disclosed. UEs may be assigned priorities for admission to a given wireless system. The UEs may then be admitted to the wireless system based on the priorities of the UEs for the wireless system. In one design, a UE may be identified for admission to a first wireless system among a plurality of wireless systems. Attributes (e.g., capabilities) of the UE for the plurality of wireless systems may be determined. An admission priority of the UE for the first wireless system may be determined based on the attributes of the UE for the plurality of wireless systems. Whether to admit the UE to the first wireless system may be determined based on the admission priority of the UE for the first wireless system and possibly the current resource usage of the first wireless system.
Abstract:
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.
Abstract:
Access terminals are provisioned to conduct intra-frequency, inter-frequency, and inter-RAT measurements and report physical layer identifiers of detected cells. The provisioning may involve cycling through all or a portion of a defined superset of physical layer identifier one subset at a time. In addition, the physical layer identifiers may be prioritized to improve the search procedure. Measurement report messages (including physical layer identifiers of the detected cells) are received at an access point as a result of the provisioning. A neighbor cell list for the femtocell is maintained based on the received measurement report messages and, optionally, other information. This other information may related to, for example, one or more of: physical layer identifier information received from access terminals that register with the access point, physical layer identifier information received via network listen operations, information regarding co-located cells, or physical layer identifier information received from a network entity.
Abstract:
The present disclosure presents a method and an apparatus for passive estimation mechanism for backhaul management at a small cell base station. For example, the method may include determining, at the small cell base station, whether a time slot utilization of a flow at a user equipment (UE) in communication with the small cell base station is above a first threshold, wherein a plurality of time slots are associated with the flow, determining whether an average throughput of the flow is below a second threshold in response to determining that the time slot utilization is above the first threshold, and identifying that the flow is not satisfied in response to determining that the average throughput of the flow is below the second threshold. As such, passive estimation mechanism for backhaul management at a small cell base station may be achieved.
Abstract:
Techniques for transmitting power decision pilots are described. A transmitter (e.g., a base station or a UE) may transmit a power decision pilot to indicate a transmit power level that it will use on subsequent time-frequency resources. In one design, the transmitter may determine a set of time-frequency resources to use for transmitting the power decision pilot, determine the transmit power level for the power decision pilot based on the transmit power level to use for data transmission, and transmit the power decision pilot on the set of time-frequency resources to indicate the transmit power level to use for data transmission on the subsequent time-frequency resources. A receiver (e.g., a UE or a base station) may receive power decision pilots from a set of transmitters and may estimate channel quality that the receiver can expect on the subsequent time-frequency resources based on the power decision pilots.
Abstract:
Techniques for prioritizing user equipments (UEs) for switching between wireless systems are disclosed. The wireless systems may be part of a small cell and may include a WLAN system and a cellular system. In one design, a network entity (e.g., the small cell) may identify a plurality of UEs communicating with a first wireless system. The first wireless system may be one of a plurality of wireless systems providing communication coverage for the UEs. The network entity may determine priorities of the UEs for switching from the first wireless system to a second wireless system. The network entity may then select at least one UE among the plurality of UEs to switch from the first wireless system to the second wireless system based on the priorities of the UEs.
Abstract:
An access point may handle an access terminal in different ways based on resource usage at the access point and/or based on at least one category associated with the access terminal. This handling of an access terminal by an access point may involve, for example, a reduction or an increase in service, access to specific resources, handout, and long term adjustments. If usage of one or more resources at the access point exceeds a corresponding usage threshold, the access point may reduce the service available to lower priority access terminals and/or increase the service available to higher priority access terminals. In some aspects, access terminals may be handled differently according to the serving access point's bandwidth, capacity, cost, or resource usage regarding backhaul, over-the-air, or other access point resources. In some aspects, access terminals may be handled differently according to a category (or categories) associated with the access terminals.