H04B7/06

Radio communication system, radio communication apparatus, radio communication method, and non-transitory computer readable medium
11581956 · 2023-02-14 · ·

One of a plurality of radio communication apparatuses (100) becomes a master apparatus (100-M), and a rest of them become slave apparatuses (100-S). The master apparatus and each of the slave apparatus includes a plurality of transceivers (31) each composed of a transmitter and a receiver and first ports (55 and 56). The master apparatus further includes a calibration transceiver (51). The first port of the master apparatus is connected to the first port of the slave apparatus via an RF cable. When transmission calibration is performed, each transmitter of the slave apparatus transmits a transmission calibration signal to the calibration transceiver of the master apparatus via the RF cable. When reception calibration is performed, the calibration transceiver of the master apparatus transmits a reception calibration signal to each receiver of the slave apparatus via the RF cable.

Multiple transmission panels and non-ideal backhaul links

A method of configuring a multichannel uplink transmission (199) comprising multiple channels (151, 152, 159, 451, 452) between a wireless communication device (102) and multiple receive panels (1013-1, 1013-2) of at least one network node (101) is provided. The multiple receive panels (1013-1, 1013-2) and the at least one network node (101) are connected via backhaul links (1018-1, 1018-2). The method is carried out by the wireless communication device (102). The method comprises receiving, from the at least one network node (101), a downlink message encoding control data (4001) for the multichannel uplink transmission (199), the control data (4001) being associated with the backhaul links. The method further comprises configuring the multichannel uplink transmission (199) based on the control data (4001).

Method and apparatus for generating beam measurement information in a wireless communication system

The present disclosure is related to a 5.sup.th generation (5G) or pre-5G communication system to be provided to support a higher data transmission rate since 4.sup.th generation (4G) communication systems like long-term evolution (LTE). A method for generating beam measurement information of user equipment (UE) is provided. The method of UE includes receiving a first reference signal from a base station, requesting a transmission of a second reference signal when a result of measuring the first reference signal satisfies a predetermined condition, receiving the second reference signal, and generating a measurement result based on the second reference signal.

Beam configuration management service

A method, a device, and a non-transitory storage medium are described in which beam configuration management service is provided. A network device of a wireless access network provides the service that includes identifying redundant configurations across carriers associated with a cell group, and links the common beam configurations to these carriers. The service also includes identifying any difference in beam configurations relative to the common beam configurations for a carrier. The service may transmit this beam configuration information in a control plane message to an end device. The end device may use the beam configuration information.

Transmission and reception methods and devices implementing a plurality of transmit and receive antennas, and corresponding computer program
20230040332 · 2023-02-09 ·

A reception method implemented by a reception device implementing a plurality of receive antennas. The method includes: estimating an interference covariance matrix representative of the spatial structure of the interference between the receive antennas; and transmitting at least one item of information about a quality of service associated with at least one acquisition technique for acquiring knowledge of the channel at transmission, able to be used by a transmission device implementing a plurality of transmit antennas, obtained from the interference covariance matrix.

ELECTROMAGNETIC UNIT REGULATION METHOD AND APPARATUS, AND DEVICE AND STORAGE MEDIUM
20230041198 · 2023-02-09 ·

An electromagnetic unit regulation method and apparatus, and a device and a storage medium are provided. The electromagnetic unit regulation method includes: determining a to-be-regulated electromagnetic unit set S2, where the to-be-regulated electromagnetic unit set S2 is a subset of a regulatable electromagnetic unit set S1; grouping an electromagnetic unit set into X electromagnetic unit groups, where X≥1, and the electromagnetic unit set includes at least one of the to-be-regulated electromagnetic unit set S2 and the regulatable electromagnetic unit set S1; determining an electromagnetic property set to be regulated; and according to the X electromagnetic unit groups, performing regulation on an electromagnetic property of the to-be-regulated electromagnetic unit set S2, where the electromagnetic property is at least one electromagnetic property in the electromagnetic property set.

BEAMFORMING AND CARRIER AGGREGATION

A device configured for operating in a wireless communication network and for performing communication with a communication partner within the wireless communication network by exchanging a wireless signal is configured for communicating with the communication partner using a beamforming technique to form a transmit beam pattern being a beam pattern selected from a plurality of transmit beam patterns being formable by the device. The device is configured for providing, responsive to a trigger event, a number of transmit beam patterns being at least a subset of the plurality of formable transmit beam patterns to the communication partner or a different entity of the wireless communication network. The device is configured for receiving feedback information relating to the beam patterns of the number of beam patterns; and for using at least one of the provided number of beam patterns based on the feedback information as a selected beam pattern.

Uplink Beam Reporting

Described are embodiments for uplink beam reporting. A wireless device determines an overlap in time between: a first uplink channel resource of a permissible exposure report for a cell and a second uplink channel resource of a channel state information (CSI) report for the cell. Based on the determined overlap in time, the wireless device drops the CSI report scheduled for transmission via the second uplink channel resource, and transmits the permissible exposure report via the first uplink channel resource.

AIDED ANTENNA CALIBRATION FOR SHARED RADIO SYSTEMS
20230039595 · 2023-02-09 ·

A method, network node and wireless device (WD) for New Radio (NR)-WD antenna calibration for Long Term Evolution (LTE)-NR radio-shared systems are disclosed. According to one aspect, a method in a network node configured to communicate with first wireless devices according to a first radio access technology and to communicate with second wireless devices according to a second radio access technology is provided. The method includes determining a delay and phase error at a first processing block based at least in part on feedback from at least one of the first wireless devices. The method also includes compensating a first transmitted signal based at least in part on the determined delay and phase error. The method further includes compensating at a second processing block a second transmitted signal based at least in part on the determined delay and phase error received from the first processing block.

MULTIPLE-INPUT AND MULTIPLE-OUTPUT (MMO) DETECTION IN WIRELESS COMMUNICATIONS
20230040774 · 2023-02-09 ·

Introduced here is at least one technique to better estimate interference at a receiver. The technique includes receiving a plurality of reference signals, which each have information indicative of noise. Thus, the technique further includes, for each reference signal, determining a noise estimation and determining a distance metric and log-likelihood ratio (LLR) of the noise estimation. Once the distance metric and LLR of each reference signal is determined, the receiver can determine a final LLR based on the distance metric and LLR of each reference signal. In this manner, a final LLR is determined. This technique can be applied by any device operating on MIMO technology.