摘要:
Embodiments of the present invention provide a virtual multicarrier design for orthogonal frequency division multiple access communications. Other embodiments may be described and claimed.
摘要:
A peak-to-average power ratio (PAPR) reduction method, known as system-aided PAPR reduction (SAPR), is disclosed. Based on a TR algorithm, the SAPR method avoids the drawbacks of conventional tone reservation implementations, and reduces PAPR significantly, in some embodiments. The SAPR method may be applied to next generation OFDMA-based wireless broadband technologies, to increase system throughput and cell coverage.
摘要:
Methods and apparatuses for scheduling transmissions between a base station and multiple user stations in a broadband wireless access network may include a subscriber station generating a bandwidth request which includes one of a limited number of available and predefined preamble sequences and a data portion identifying the resources requested. The subscriber station randomly selects a contention slot in a wireless channel, allocated by the base station, for sending a bandwidth request. The receiving base station is able to detect the preamble sequence of bandwidth requests and differentiate between subscribers even when bandwidth requests of two or more subscribers may collide by virtue of selecting the same contention slot. In this manner, latency and overhead of bandwidth requests may be improved. Additional variants and embodiments are also disclosed.
摘要:
Provided are systems for identifying content to be provided in broadcast or multicast, broadcasting a communication including an indication that the content is provided in downlink data as well as downlink data including the content.
摘要:
A user equipment (UE) is arranged to send an uplink power reference signal to an enhanced Node B (eNB) associated with multiple reception points (RPs), to receive identification of an RP set and a downlink reference signal power level, to determine a path loss estimate for each downlink reference signal received from RPs of the RP set, to determine an uplink power level that is a function of the path loss estimates determined for the downlink signals received from the RPs of the RP set, and to use the determined uplink power level during communication with the multiple RPs.
摘要:
Embodiments of computer-implemented methods, systems, computing devices, and computer-readable media are described herein for assigning transmission power to one or more components carriers in an uplink transmission utilizing carrier aggregation. In one embodiment, power is assigned to a component carrier based on the priority level of the component carrier. In another embodiment, power is assigned based on absolute priority order. In yet another embodiment, power is assigned based on relative priority order.
摘要:
Power control schemes for D2D communications are described. The schemes control the transmission power of a UE during D2D communications in a manner that reduces interference while maintaining the D2D communications link and the cellular link with the eNB. Open-loop and/or closed-loop techniques are employed.
摘要:
An apparatus may include a communication interface and a processor circuit. The apparatus may further include a location analyzing module operable on the processor circuit to receive a first set of location information including a first radio information item from a first radio of a first wireless terminal via the communication interface, to scan a second set of location information to identify a second radio information item matching the first radio information item, and to index the second radio information item to a location entry in the second set of location information to determine a refined location for the first wireless terminal. Other embodiments are disclosed and claimed.
摘要:
Briefly, in accordance with one or more embodiments, a pathloss gap between a downlink pathloss from a base station to a mobile station and an uplink pathloss from the mobile station to the base station is estimated. An initial offset value for uplink power control of the estimated pathloss gap is calculated based at least in part on said estimating. An offset value for an uplink data channel or an uplink control channel, or combinations thereof, is set based at least in part on the initial offset value. The pathloss gap for uplink power control is compensated using the set offset value.
摘要:
Embodiments of the present invention provide a virtual multicarrier design for orthogonal frequency division multiple access communications. Other embodiments may be described and claimed.