Idle mobile devices are used as cooperating devices to support coordinated multipoint transmission and reception for uplink and downlink communications between a primary mobile device (14) and its serving base station (12). For uplink communications, the cooperating mobile devices receive the uplink transmission from the primary mobile device (14) and retransmit the received data signal to the serving base station (12) for the primary mobile device (14). For downlink communications, the cooperating mobile devices receive the downlink transmission from the serving base station (12) and retransmit the received data signal to the primary mobile device (14).

Mobile Device Assisted Coordinated Multipoint Transmission and Reception

Aspects of the present disclosure relate to wireless communications and, more particularly, to power control and management for enhanced mobile broadband (eMBB)/ultra-reliable low latency (URLLC) multiplexing. A method for wireless communications that may be performed by a user equipment (UE) is provided. The method generally includes receiving, from a base station (BS), scheduling information scheduling the first UE for communication, with the BS, according to a first communications service type, receiving signaling indicating a second UE is scheduled for communication with the BS according to a second communications service type, and communicating with the BS according to the first communications service type at a reduced transmission power relative to a transmission power used for communicating according to the second communications service type.

Techniques for power control and management

Signal transmitting/receiving electronic devices or terminals in the present disclosure are configured to conduct per-beam signal synchronization in massive MIMO communication with a signal receiving/transmitting device or base station. During the massive MIMO communication, the devices or terminals are configured to transmit/receive signals via a set of beams to or from the signal receiving/transmitting device or base station. For beam domain signal of each individual beam of the plurality beams, the devices or terminals are configured to determine target time adjustments based on time shifts of the beam domain signals induced by multipath effect and target frequency adjustments based on frequency offsets of the beam domain signals induced by the Doppler effect; adjust time independent variables of the beam domain signals by the time adjustments; and adjust frequency independent variables of the beam domain signals by the frequency adjustments. Further, per-beam synchronized BDMA massive MIMO transmission method is disclosed, which provides a solution to efficient and reliable wireless communications with high mobility and/or high carrier frequency.

Systems and methods for wireless communication with per-beam signal synchronization

An apparatus and method for performing UE-to-UE cooperative communication in a wireless communication system are disclosed, by which implementation of a UE cooperative communication using a cellular network is facilitated. The present invention includes activating an application to perform the UE-to-UE cooperative communication, receiving first data via a first network from a base station recognizing that the application has been activated, receiving second data via a second network from a cooperative user equipment linked for the UE-to-UE cooperative communication, and performing a service by adding the first data and the second data together through the application, wherein the first network and the second network correspond to heterogeneous networks, respectively.

Apparatus for performing ue-to-ue cooperative communication in a wireless communication system and method thereof

An embodiment of the invention discloses a method for cooperative processing of wireless data, and further discloses a device and a system for cooperative processing of wireless data as well as a terminal interconnection device. The method comprises steps as follows: a first terminal accessing a wireless communication network sends downlink wireless channel parameters to a second terminal, so that the second terminal receives data according to the downlink wireless channel parameters including carrier frequency, timeslot number and a modulation mode; or the first terminal sends uplink wireless channel parameters including carrier frequency, timeslot number and a modulation mode to the second terminal, and accordingly, the second terminal sends data according to the uplink wireless channel parameters. With adoption of the method, through an innovative networking mode, a plurality of terminals can share one wireless channel for data receiving and sending; in certain scenes, for example, in the scene where a plurality of terminals in a near distance download the same data from a base station, the resource scheduling cost and the power consumption cost can be reduced, the utilization rate of a physical resource block is increased, and the like.

Method, corresponding device and system for cooperative processing of wireless data

Provided is a cooperative communication technology of a target terminal and a cooperative terminal. In an environment in which interference exists between cells, cooperation between terminals may be performed in order to improve quality of signals that are received from a base station.

Cooperative communication methods and a device for a target terminal and a cooperative terminal

A massive antenna-based pattern/polarization beam division multiple access method and an apparatus performing the same are provided. The massive antenna-based pattern/polarization beam division multiple access method includes generating a plurality of beam sectors for each antenna array by using a plurality of pattern/polarization antenna arrays and performing MIMO transmission in each of the plurality of beam sectors, wherein the plurality of pattern/polarization antenna arrays each have a different radiation pattern.

Massive antenna-based pattern/polarization beam division, multiple access method, and apparatus performing the same

The present invention discloses a communication device based on the beam-space MIMO and an operation method thereof. According to an embodiment of the present invention, the communication device includes: a beam space MIMO antenna which includes a dynamic antenna and multiple parasitic antennas mutually coupled to the dynamic antenna; a beam-space MIMI baseband circuit which uses a signal to generate load impedance vectors for the parasitic antennas in a time area transmitted from a modem circuit; and a beam space MIMO RF circuit which loads load impedance values respectively corresponding to the parasite antennas based on the load impedance vector onto the parasite antennas.

Communication device based on beamspace mimo, and method thereof

An ESPAR antenna transmitter and a multiple OFDM symbols transmitting method in a beamspace MIMO environment are disclosed in the present invention. According to an embodiment of the present invention, the method for transmitting independent multiple OFDM symbols through an ESPAR antenna transmitter in a beamspace MIMO system comprises the steps of: calculating, under a plurality of constraints, a variable for minimizing a difference between a first current value and second current values, wherein the first current value is calculated by mapping a matrix representing a beam pattern of the beamspace MIMO system with respect to the multiple OFDM symbols, and the second current values are implemented through the ESPAR antenna transmitter and respectively applied to an active antenna and a plurality of parasitic antennas disposed around the active antenna; and transmitting the multiple OFDM symbols by applying the calculated variable with respect to the ESPAR antenna transmitter. At this case, the variable includes the matrix representing the beam pattern, a voltage value applied to the active antenna through an RF chain connected to the active antenna, and an impedance load connected to the parasitic antenna.

Ofdm symbol transmiting using espar antenna in beamspace mimo system

PURPOSE: A target terminal and cooperation communication method of a cooperation terminal is provided to improve the quality of reception data by using cooperation between terminals in cell environment CONSTITUTION: A target terminal requests cooperation to one or more neighbor terminals(410) The target terminal acquires information for transmission power requested by information for a cooperation method(420) The target terminal selects a cooperation terminal from one or more neighbor terminals based on the transmission power(430) The target terminal cooperatively communicate with the cooperation terminal according to a cooperation method(440)

Cho Dong Ho

Papers

Cooperative communication methods and a device for a target terminal and a cooperative terminal

Massive antenna-based pattern/polarization beam division, multiple access method, and apparatus performing the same

Communication device based on beamspace mimo, and method thereof

Ofdm symbol transmiting using espar antenna in beamspace mimo system

Cooperated communication method for target termianl and cooperating terminal