Some demonstrative embodiments include devices, systems and/or methods to establish a connection to the Internet via a local gateway (L-GW) function for a LIPA or a SIPTO@LN. The establishment of the connection to the Internet may be performed, for example, by at least one of an E-RAB SETUP procedure, an INITIAL CONTEXT SETUP procedure, an INITIAL UE MESSAGE procedure or an UPLINK NAS TRANSPORT procedure.

A method of reducing a number of signals that are output for processing by an antenna array and the antenna array are disclosed. The method comprises: receiving signals at a plurality of antenna elements from at least one user equipment; transforming the signals to at least one different domain to generate sparse signals; combining at least some of the signals to form a reduced number of signals; and outputting the reduced number of sparse signals to signal processing circuitry.

The present disclosure relates to a network node having a processor and a transceiver. The processor is configured to select at least one user device if a Channel Estimation Timer (CET) for a radio channel between the network node and the at least one user device is valid, and to schedule data transmission to the at least one selected user device. The transceiver is configured to perform the scheduled data transmission to the at least one selected user device. The present disclosure also describes a corresponding method, a wireless communication system including such a network node, a computer program, and a computer program product.

The present disclosure relates to an apparatus and method for canceling and/or suppressing inter-cell interference in a wireless communication. The method includes: establishing a Radio Resource Control (RRC) connection with a base station through a first serving cell; receiving, at a User Equipment (UE), an RRC message through the first serving cell, the RRC message comprising cell-specific reference signal (CRS) information of a neighbor cell and Physical Downlink Shared Channel (PDSCH) information of the neighbor cell, and the PDSCH information of the neighbor cell comprising a parameter relating to a power ratio of a CRS of the neighbor cell and a PDSCH of the neighbor cell; receiving the PDSCH through the first serving cell; performing a channel estimation for retrieving data from a PDSCH of the first serving cell; and retrieving the data from the PDSCH of the first serving cell based on the second channel estimation.

Techniques for minimum-mean-square-error (MMSE) channel estimator using channel-dependent composite subcarriers and combined pilots reduce computational complexity and memory usage while still achieving near optimum performance. A set of interpolation filters, that are pre-calculated for different radio propagation environments, e.g., channel state information, are stored in look up tables at the receiver and used to interpolate channel estimates for combined pilots to obtain channel estimates for individual subcarriers.

Systems and methods for transmitting data using various Modulation on Zeros schemes are described. In many embodiments, a communication system is utilized that includes a transmitter having a modulator that modulates a plurality of information bits to encode the bits in the zeros of the z-transform of a discrete-time baseband signal. In addition, the communication system includes a receiver having a decoder configured to decode a plurality of bits of information from the samples of a received signal by: determining a plurality of zeros of a z-transform of a received discrete-time baseband signal based upon samples from a received continuous-time signal, identifying zeros that encode the plurality of information bits, and outputting a plurality of decoded information bits based upon the identified zeros.

According to one aspect, a network node is provided. The network node including processing circuitry configured to: estimate a spatial spectrum associated with a plurality of wireless devices, determine active spatial directions for the plurality of wireless devices based at least on the estimated spatial spectrum, and determine Multiple User-Multiple Input Multiple Output, MU-MIMO, pairing based at least on the determined active spatial directions.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a signal. The UE may measure the signal to explore one or more inactive ranks or inactive precoders. The UE may transmit, based at least in part on the measuring, a report that includes channel state information for at least one of the one or more inactive ranks or inactive precoders. Numerous other aspects are described.

A data processing apparatus and method, a base station, and a storage medium are provided. The apparatus includes: a processor, configured to determine a computation parallelism degree according to the number of antennas and pilot frequency information, acquire antenna data and channel estimation matrices of respective users, and store the antenna data and the channel estimation matrices in groups in a memory, and determine, according to the computation parallelism degree, target antenna data processed in parallel by an arithmetic unit in a single computation, wherein the target antenna data is part of the antenna data of the respective users; the memory, configured to store the antenna data and the channel estimation matrices in groups, and output the target antenna data and the channel estimation matrices to the arithmetic unit; and the arithmetic unit, configured to compute user data based on the target antenna data and the channel estimation matrices.

A method, an apparatus and a device for simultaneously sampling multiples signals and a medium are provided. The method includes: modulating multiple target input signals with CDM, to obtain a single target analog signal; performing ΔΣ modulation on the single target analog signal to obtain a target digital bit stream; demodulating the target digital bit stream to obtain a target demodulated bit stream; and filtering the target demodulated bit stream to obtain multiple target output signals. With the method, the hardware overhead for simultaneous sampling of multiple-channel signals is reduced while ensuring accuracy. Accordingly, the apparatus and the device, and the medium have the above beneficial effects.