摘要:
An antenna apparatus is provided for operating as a base station in a wireless network, along with a method of configuring a transmission beam within such an antenna apparatus. The antenna apparatus has a rotatable antenna assembly that can employ transmission beam patterns selected from a plurality of transmission beam patterns, and has a controller to rotate the rotatable antenna assembly in order to alter an azimuth direction of the rotatable antenna assembly. During a configuration mode, a sweep operation is performed in order to rotate the rotatable antenna assembly to each of multiple selected azimuth directions. Quality metric determination circuitry then determines, for each selected azimuth direction, a link quality metric for each of a plurality of wireless terminals based on communication between the plurality of wireless terminals and the base station whilst the rotatable antenna assembly is at that selected azimuth direction. Transmission beam determination circuitry then determines, from the link quality metrics determined for the plurality of wireless terminals at each selected azimuth direction, both a transmission beam pattern and an azimuth direction to be used for subsequent communication with the plurality of wireless terminals. This provides a particularly efficient mechanism for the antenna apparatus to self configure its transmission beam pattern and azimuth direction.
摘要:
In an example, a set of training fingerprints may be accessed, in which each of the training fingerprints specifies an access point of a plurality of access points to which a mobile device made a successful connection, a relative signal strength of the connection to the access point, and a cellular signal strength of a cellular tower near the mobile device when the successful connection to the access point was made. Level counts of the relative signal strengths of the connections to the access points corresponding to the cellular signal strengths of the cellular tower may be cumulated from the set of training fingerprints. The cumulated level counts of the relative signal strengths of the access points may be ranked.
摘要:
LTE-WLAN aggregation (LWA) at the radio access network level promises significant gain in system capacity and user quality of experience (QoE). In order to support QoS over LWA, there is a need to develop mechanisms to ensure that the access category (AC) classification chosen by a wireless device (AP in the case of downlink, and UE in case of uplink) is consistent with the QoS requirements of the EPS bearer/DRB and/or subscriber profile to which the traffic belongs. The cellular LTE network can provision QoS for both downlink and uplink data flows that are transferred using LWA access.
摘要:
Cell selection techniques are provided for network access to cells that may employ one or more coverage enhancement techniques. A user equipment (UE), which may be a machine type communication (MTC) device, upon initial acquisition or upon wakeup may measure a reference signal received power (RSRP), reference signal received quality (RSRQ), or both, and determine a cell selection value based at least in part on the RSRP, RSRQ, or a combination thereof. The cell selection value may be determined based on an offset, which may be selected based on a measurement accuracy capability of the UE. UE sequential access attempts, neighbor cell list information that may include coverage enhancement of neighboring cells transmissions, and cell re-selection measurement frequency adjustments are also described.
摘要:
Adaptive implementation of multiple measurement gap patterns (MGPs) is discussed. One example apparatus can be employed within an eNB, comprising a processor determining a first MGP associated with a first set of one or more carriers and a distinct second MGP associated with a second set of one or more carriers; determining a schedule for a user equipment (UE) associated with the first MGP and the second MGP; and assigning a priority to each carrier of the first set and the second set; transmitter circuitry transmitting to the UE one or more messages that configure the first MGP, the second MGP and the schedule, and transmitting one or more messages that indicate the assigned priorities and the carriers of the first set and the second set; and receiver circuitry receiving carrier measurement(s) from the UE associated with at least one carrier of the first set or the second set.
摘要:
A method and apparatus may include determining a channel between a secondary cell and a user equipment. The method may also include transmitting information relating to the channel to a primay cell of a second network node. The transmitting the information comprises transmitting via an interface between the secondary cell and the primary cell.
摘要:
본 개시는 센서 네트워크 (Sensor Network), 사물 통신 (Machine to Machine, M2M), MTC(Machine Type Communication) 및 사물 인터넷 (Internet of Things, IoT)을 위한 기술과 관련된 것이다. 본 개시는 상기 기술을 기반으로 하는 지능형 서비스 (스마트 홈, 스마트 빌딩, 스마트 시티, 스마트 카 혹은 커넥티드 카, 헬스케어, 디지털 교육, 소매업, 보안 및 안전 관련 서비스 등)에 활용될 수 있다. 본 발명의 실시 예에 따른 무선 통신 시스템의 송신 장치는, 압축된 비콘(beacon) 프레임(frame)을 다수의 송신빔(beam)들을 이용하여 송신하는 송신부와,상기 다수의 송신 빔들 중 최적의 송신 빔에 대한 정보를 수신하는 수신부와,단말로부터 수신한 빔 (beam)을 이용하여 빔포밍을 제어하는 제어부를 포함하고,상기 압축된 비콘 프레임은 데이터 (data)와 헤더 (header)가 하나의 프레임으로 압축된 것을 특징으로 한다. 본 발명의 실시 예에 따른 무선 통신 시스템의 수신 장치는, 압축된 비콘 (beacon) 프레임 (frame)을 다수의 송신빔 (beam)들을 이용하여 수신하는 수신부와, 상기 압축된 비콘 프레임에 대해 최적의 송신빔에 대한 정보를 압축된 피드백(feedback)프레임을 통해 송신 하는 송신부와, 기지국으로부터 수신한 빔을 이용하여 빔포밍을 제어하는 제어부를 포함하고, 상기 압축된 피드백 프레임은 데이터(data)와 헤더(header)가 하나의 프레임으로 압축된 것을 특징으로 한다.
摘要:
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a measurement configuration on a first cell specifying a measurement gap for measuring cells on other frequencies. The UE may then measure a second cell and determine an offset between the timing of the two cells. If the measured frequency band is synchronized (or nearly synchronized), the length of the measurement gap may be reduced. In some cases, the UE may then make measurements on the second cell using a reduced measurement interval, and the UE may power down certain components during the rest of the measurement gap to conserve power. In other cases, the UE may coordinate with the serving cell to reduce the measurement gap to minimize the interruption caused by the gaps.
摘要:
According to some embodiments, a method of estimating a relayed wireless signal in a multihop network comprises receiving, at a destination network node, a wireless signal relayed from a plurality of network nodes, each corresponding to a relay stage. The received wireless signal comprises successive quantizations of a source wireless signal performed at each relay stage. The destination network node also receives a plurality of messages, each including quantization information associated with the quantization performed at a corresponding relay stage. The destination network node estimates a wireless signal received at a previous relay stage using a quantized multiple-input multiple-output (MIMO) channel model with the received wireless signal and a message corresponding to the quantization performed at the previous relay stage. The destination network node estimates the source wireless signal using the estimated wireless signal received at the previous relay stage and the remaining messages to estimate a wireless signal received at each of the previous relay stages.