Abstract:
Embodiments herein relate to method performed by a radio network node for handling communication in a wireless communication network. The radio network node dynamically applies different muting patterns for muting an active component of one or more antenna branches of the radio network node and/or of one or more antenna panels of the radio network node, wherein the different muting patterns are associated with one or more types of physical channels used for communicating and/or a communication parameter related to one or more UEs. The radio network node performs a communication using the dynamically applied different muting patterns.
Abstract:
An Audio/Video (A/V) transmitting device may include a Radio Frequency (RF) transmitting module configured to transmit a compressed RF packet to an RF receiving module of an A/V receiving device, the RF transmitting module including a plurality of transmitting antennas, and a processor configured to obtain radio performance between the RF transmitting module and the RF receiving module and, when the obtained radio performance satisfies a preset radio performance, sequentially turn off one or more transmitting antennas among the plurality of transmitting antennas.
Abstract:
The radio communication system includes: a transmitter that transmits a first polarized signal and a second polarized signal to a receiver and terminates the transmission of the second polarized signal in accordance with an instruction from the receiver; and the receiver that receives the polarized signal from the transmitter, determines whether or not a reception quality of the second polarized signal becomes lower than a threshold value, and issues an instruction to the transmitter to terminate transmission of the second polarized signal to the transmitter when the reception quality becomes less than the threshold value.
Abstract:
The present invention relates to a node (1) in a wireless communication system, the node (1) comprising at least a first and second antenna function (2, 3), and a first and second radio chain (4, 5). At least at the start of a first mode of operation, each antenna function (2, 3) is connected to a corresponding radio chain (4, 5). The node further comprises a switching network (6) and a beamforming network (7), which switching network (6), at least at the start of a second mode of operation, is arranged to disconnect at least one antenna function (2) from its corresponding radio chain (4) and connect it to another of the radio chains (5) via at least a part of the beamforming network (7), such that at least two antenna functions (2, 3) are connected to the same radio chain (5). The node (1) is arranged to perform beamforming for said at least two antenna functions (2, 3) by means of said beamforming network (7), the switching network (6) being arranged to switch between the first mode and the second mode.
Abstract:
The present implementation is directed to a system and method of mobile transmit diversity and, more particularly, to a device which can operate in any of several modes, including a transmit diversity mode whereby two or more antennae transmit signals to at least one base station with relative phase difference, or in a non-diversity mode whereby one antenna is turned off and the other transmits at full or requisite power.
Abstract:
A system is disclosed for operating a plurality of receiver paths and/or a plurality of transmitter paths in a single mode or multiple mode configuration.
Abstract:
A method and system are disclosed for power saving of NodeB. The method includes the following steps: when a first condition is met, the NodeB enters a power saving mode and at least one multi-input multi-output (MIMO) cell of the NodeB is reconfigured as a non-MIMO cell; when a second condition is met, the NodeB enters a normal mode, and at least one non-MIMO cell of the NodeB is reconfigured as a MIMO cell. The method and system can dynamically configure the cell mode, which both ensures the experience of MIMO terminal and saves the power consumption of the NodeB in the case that the user data amount is not large.
Abstract:
An antenna device for a mobile communication terminal includes three antennas, a first RF module unit, a second RF module unit, and a control unit. The RF module unit is configured to communicate a signal of a first communication service through the first antenna. The second RF module unit is configured to communicate a signal of a second communication service through the second antenna. The control unit is configured to connect the third antenna to the first RF module unit or the second RF module unit selectively according to a selected communication service, operate the first and third antennas as a diversity antenna for the first communication service, and operate the second and third antennas as a MIMO antenna for the second communication service.
Abstract:
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and to an apparatus for transmitting an SRS in a multi-antenna system. The method comprises the steps of: acquiring specific information for discriminating a first antenna group and a second antenna group from among a plurality of antennas, wherein said first antenna group includes one or more antennas which are set to a turned-on state to perform communication with a base station, and said second antenna group includes one or more other antennas which are set to a turned-off state; transmitting an SRS to the base station if a predetermined condition is satisfied, under the condition that the second antenna group is set to the turned-off state; and setting the second antenna group to a turned-off state after the transmission of the SRS.
Abstract:
A method and apparatus for selectively enabling or disabling transmit diversity in a mobile communication device. The mobile communication device may switch between diversity and non-diversity operation based on various transmit power considerations.