Abstract: This application provides a power control method, a terminal, and a network device. The power control method includes: receiving, by a terminal, at least one piece of downlink control information (DCI) sent by at least one network device, where the at least one piece of DCI includes at least two transmit power control commands; and determining, by the terminal, a transmit power on an uplink channel in a same carrier based on the at least two transmit power control commands. According to the power control method in the embodiments of this application, the terminal can determine the transmit power on the uplink channel based on a plurality of transmit power control commands, thereby ensuring efficient and proper power allocation and improving overall system performance.

Abstract: A multi-user uplink transmission is performed by analyzing, by a first wireless station, a spatial reuse field in a first frame, and generating, by the first wireless station, a second frame, wherein the second frame includes a spatial reuse field that is generated based on the spatial reuse field of the first frame. The first frame and the second frame are within the same transmission opportunity (TXOP) and the first frame is transmitted prior to the second frame during the TXOP.

Abstract: Techniques for autonomous handover signaling on a shared communication medium are disclosed. An access terminal may receive, from an access point, one or more configuration messages configuring the access terminal for autonomous handover and including a parameter defining one or more autonomous handover triggering events. The access point may perform one or more mobility measurements on a communication medium and monitor for the one or more autonomous handover triggering events based on the one or more mobility measurements. The access terminal may perform an autonomous handover from a source access point to a target access point based on the monitoring.

Abstract: A mobile station which communicates with a base station includes a transceiver configured to receive a downlink control channel, and a controller configured to determine whether C-RNTI is included in the downlink control channel. The controller is further configured to determine that resource allocation in the downlink control channel overrides persistent downlink resource allocation for a Transmission Time Interval (TTI) if the C-RNTI is included in the downlink control channel. The transceiver is further configured to receive a Hybrid Automatic Repeat Request (HARQ) transmission by using persistent downlink resources.

Abstract: A circuit arrangement capable of adjusting signal parameters of a plurality of signals that is transmitted between one or more terminals and one or more antennas is provided. The circuit arrangement is configured to separate a common signal path for the plurality of signals into a plurality of individual signal paths, wherein two or more signal paths of the plurality of signal paths are configured to carry different single signals. A signal adjusting section is configured to independently adjusting one or more signal parameters for two or more single signals.

Abstract: Access category management objects may be configured for use in support of access category configurations of a user equipment (UE). Various methods for a UE configuration with access categories are disclosed. Signaling methods by a radio access network of access barring parameters such as a signaling method for a partial list of access barring parameters with explicit signaling of access category indexes and a signaling method for a full list of access barring parameters where access categories are signaled using a bitmap are disclosed. Access control parameters and an access control architecture in terms of access control function distribution within the UE protocol sublayers, solutions that address the impact of access control in a connected mode on a buffer status report, logical channel prioritization and flow control between the UE AS and UE NAS, and details regarding access barring checks are also disclosed.

Abstract: The present invention relates to a method and system energy aware scheduling for sensors (Internet of Things (IoT)). More specifically, the method and system relates to energy scheduling of battery powered sensors or sensors powered using energy harvesters such that accurate and up to date information may be received from said sensors and at the same time minimizing the power utilized by said battery powered or energy harvester powered sensors.

Abstract: A wireless communication device that supports a first wireless communication system and belongs to a first network to perform relay operation therein, the device including: a reception unit that receives first notification information from downstream side of the wireless communication device; an interference classification unit that classifies interference detected in a plurality of channels into first interference of the wireless communication device that supports a first wireless communication system and belongs to a first network or second interference that is different from the first interference; a control unit that generates second notification information including at least one of information on the first interference and information on the second interference on the basis of the first notification information and the interference classification result; and a transmission unit that transmits the second information to the upstream side.

Abstract: Aspects relate to mechanisms for wireless communication devices to environmental sensing with the assistance of a network. A UE transmits an increase transmission power request message to a base station. The UE receives an increase transmission power acceptance message from the base station in response to transmitting the increase transmission power request message. The UE transmits a transmission using an increased transmission power for reflection by at least one object based on the increase transmission power acceptance message. The UE receives a reflection of the transmission reflected off the at least one object. The UE determines at least one parameter associated with the object based on the reflection of the transmission reflected off the at least one object.

Abstract: The present disclosure provides an electric power balance processing method applied to a network system including a communication device and a plurality of terminal electronic devices, wherein each terminal electronic device can communicate with the communication device, and the terminal electronic devices also communicate with each other. The method includes: acquiring remaining electric power of each terminal electronic device; determining an abnormal power-consuming device in the network system based on the remaining electric power of each terminal electronic device; determining a relay device and a device to be relayed from the plurality of terminal electronic devices based on the abnormal power-consuming device; using the relay device to construct a relay transmission channel for data transmission between the device to be relayed and the communication device.

Abstract: Procedures, mechanisms, methods, and techniques are provided that trigger power saving mode (PSM) functionality in the at least one wireless transmit receive units, group of WTRUs or subset of the group of WTRUs. The trigger may be in response to an application layer request to set one or more predetermined PSM settings, wherein the trigger originates from one or more application servers (APs) directed to a core network by way of an interface such as an SCEF that may be included on a device (e.g., a gateway, computing device, and/or the like) and may be configured for enabling the application server to request enabling and disabling PSM functionality.

Abstract: The present disclosure discloses example channel correction methods and devices. One example method includes sending a correction reference signal to at least two antennas in a second remote radio unit (RRU) through at least two antennas in a first RRU by using a first transmit power and a first weight vector. Correction reference signals received by the second RRU are combined into a fifth correction reference signal. A correction reference signal sent by the at least two antennas in the second RRU are received by the first RRU through the at least two antennas in the first RRU. Correction reference signals received by the first RRU are combined into a sixth correction reference signal. A correction coefficient of the transmit and receive channels between the first RRU and the second RRU is calculated using the fifth correction reference signal and the sixth correction reference signal.

Abstract: Methods, systems, and devices for channelizing a wideband waveform for transmission on a spectral band comprising unavailable channel segments are described. Generally, the described techniques provide for transmitting and receiving wideband waveforms when channels of a system bandwidth are unavailable for transmission. A transmitter may separate a first wideband signal into segments, with each segment a bandwidth corresponding to a channel of the system bandwidth, and may map the segments to the available channels. The transmitter may combine the mapped segments into a second wideband waveform and transmit the second wideband waveform using the available channels. A receiver may receive a first wideband signal waveform and may separate the first wideband signal waveform into segments, de-map the segments and combine the de-mapped segments into a second wideband waveform for demodulation. The techniques may be used to transmit and receive wideband waveforms over tactical data links.

Abstract: A method for transmitting an uplink physical channel in a wireless communication system and a device supporting the same are disclosed. More specifically, the method performed by a user equipment (UE) includes receiving, from a base station, transmission power related information via higher layer signaling, receiving a physical downlink control channel from the base station, and transmitting the uplink physical channel to the base station based on the physical downlink control channel, wherein the uplink physical channel includes a first uplink physical channel or a second uplink physical channel, wherein transmission powers for the first uplink physical channel and the second uplink physical channel are respectively calculated by different power related parameters determined based on the transmission power related information and the physical downlink control channel.

Abstract: Example aspects include a method, apparatus, and computer-readable medium for wireless communication at user equipment (UE) of a mobile network, comprising monitoring an uplink metric of an uplink transmission channel. The aspects further include calculating an uplink transmit power based at least on a tolerance threshold. Additionally, the aspects include transmitting, via the uplink transmission channel according to the uplink transmit power, an uplink transmission. Additionally, the aspects include detecting a change in the uplink metric. Additionally, the aspects include comparing the change in the uplink metric with performance improvement criteria. Additionally, the aspects include determining whether to adjust the uplink transmit power. Additionally, the aspects include iterating adjustments to the uplink transmit power.

Abstract: Disclosed is a method by a terminal in a mobile communication system including receiving, from a base station, CSI measurement configuration information for a serving cell, measuring a first reference signal for obtaining reference signal received power (RSRP) information based on the first CSI configuration information related to the RSRP for the physical layer signaling, transmitting the RSRP information to the base station through the physical layer signaling, measuring a second reference signal for obtaining CSI, and transmitting the CSI to the base station, the first CSI configuration information including information indicating whether to use group based reporting for the RSRP information, and the first CSI configuration information including information indicating a number of antenna ports for the RSRP information when the group based reporting is not configured for the RSRP information.

Abstract: A method and apparatus a first network entity in a wireless communication system supporting ranging capability is provided. The method and apparatus comprises: identifying, in a ranging block, one or more ranging rounds to transmit a ranging control message (RCM) with a multiple message receipt confirmation request (MMRCR) for a transmission of at least one first message comprising at least one of a set of ranging messages or a set of ranging ancillary data messages; transmitting, to a second network entity, the RCM with the MMRCR; transmitting, to the second network entity, ranging ancillary data in at least one ranging round of one or more ranging rounds following the RCM, wherein the ranging ancillary data is associated with the MMRCR; and receiving, from the second network entity, a ranging multiple message receipt confirmation (RMMRC) corresponding to the transmission of the at least one first message.

Abstract: A wireless power transmission apparatus including a controller configured to perform a negotiation for a first available power indicator with a wireless power reception apparatus; and a power converter configured to transmit a wireless power to the wireless power reception apparatus according to the first available power indicator. The controller transmits, to the wireless power reception apparatus in response to a received power packet, a bit pattern response requesting a communication by the wireless power transmission apparatus to change the first available power indicator, and transmits a packet related to a second available power indicator to the wireless power reception apparatus. Further, the bit pattern response is composed of 8 bits, and the bit pattern response is defined as a different pattern from a bit pattern for an 8-bit ACK response, an 8-bit NAK response and an 8-bit ND response.

Abstract: An integrated radio frequency terminal system includes an integrated modem configured to receive user data and communicate user data to and from a user device. The integrated modem includes a transmit tuner configured to receive the user data and convert the user data from baseband to an intermediate frequency band. The integrated modem includes a receive tuner connected to the baseband modem device and configured to convert received incoming data in the intermediate frequency band to baseband and provide the converted incoming data to the baseband modem device. The system includes a power amplifier connected to the integrated modem and configured to convert the user data from the intermediate frequency band to a radio frequency band. The system includes a low noise amplifier connected to the integrated modem and configured to convert received incoming data from the radio frequency band to the intermediate frequency band.

Abstract: An integrated radio frequency terminal system includes an integrated modem configured to receive user data and communicate user data to and from a user device. The integrated modem includes a transmit tuner configured to receive the user data and convert the user data from baseband to an intermediate frequency band. The integrated modem includes a receive tuner connected to the baseband modem device and configured to convert received incoming data in the intermediate frequency band to baseband and provide the converted incoming data to the baseband modem device. The system includes a power amplifier connected to the integrated modem and configured to convert the user data from the intermediate frequency band to a radio frequency band. The system includes a low noise amplifier connected to the integrated modem and configured to convert received incoming data from the radio frequency band to the intermediate frequency band.

Abstract: A transmission type is determined for a specific station on a Wi-Fi network. A transmission type of OFDMA is selected responsive to the mobility value for the specific station meeting a mobility threshold. A transmission type of MU-MIMO is selected responsive to the similarity value for the specific station meeting a similarity threshold. A transmission type of SU-MIMO is selected responsive to the specific station not meeting the similarity threshold. The network interface transmits data packets to stations using OFDMA, SU-MIMO or MU-MIMO as selected.

Abstract: Aspects of the subject disclosure may include, for example, obtaining a reference signal, power information regarding the reference signal, and maximum power threshold for the communication device from a base station over a communication network. Further embodiments can include measuring a power of reference signal obtained from the base station resulting in a measure power, and determining a path loss between the base station and the communication device based on the measured power. Additional embodiments can include adjusting the antenna array to generate a coarse power adjustment for the communication device based on the path loss and the maximum power threshold, and providing a transmission signal to the base station according to the coarse power adjustment over the communication network. Other embodiments are disclosed.

Abstract: A method for avoiding false alarms of Channel State Information (CSI) due to the activation of a Closed Loop Power Control (CLPC) function is provided. The method is executed by a transmitting device and includes: determining whether the CLPC function of the transmitting device is enabled; adding at least one CLPC tag to a physical layer convergence procedure (PLCP) protocol data unit (PPDU) when the CLPC function is enabled; and transmitting the PPDU.

Abstract: A method for controlling an antenna array includes determining, based on a beamstate, an initial weight vector of excitations. The initial weight vector is transformed into an active-impedance vector. When the modulus of any element of the active-impedance vector exceeds a threshold, the initial weight vector is unsafe. In this case, a substitute weight vector is identified such that (i) the initial and substitute weight vectors have a similarity measure that exceeds a similarity threshold and (ii) the substitute weight vector is safe. The antenna array may then be driven according to the substitute weight vector to emit radiation having a radiation pattern that approximates that of the beamstate. The substitute weight vector may be found by searching a library of safe weight vectors or by adjusting the excitations of the initial weight vector until a safe alternative is found.

Abstract: Embodiments provide a user equipment for a wireless communication system. The user equipment is configured to communicate with at least one other user equipment of the wireless communication system using a sidelink resource pool of the wireless communication system. Further, the user equipment is configured to transmit, responsive to an external emergency situation, an emergency notification signal on a resource of the wireless communication system. Thereby, the user equipment is configured to transmit the emergency notification signal with a transmit power that is greater than a regular transmit power used by the user equipment for transmitting regular signals.

Abstract: Systems, apparatuses, and methods are described for wireless communications. A wireless device may have different capabilities for preemption. A base station may use a signaling format to indicate a transmission power command and a preemption indicator. A wireless device may receive the signaling format and may determine, based on the transmission power command and the preemption indicator, whether to stop a transmission or to reduce a transmission power.

Abstract: A cloud-based Wi-Fi network architecture consisting of a CU and RAUs is proposed as an improvement on the conventional Wi-Fi architecture with traditional access points (APs). In addition, a method for uplink data transmission in a cloud-based Wi-Fi network is proposed. In a conventional Wi-Fi network with independently operating APs, APs close to each other may not be able to utilize the same frequency band efficiently because of significant amounts of interference. However, in a cloud-based Wi-Fi network, the CU coordinates RAUs so that they can operate in the same frequency band by transmitting or receiving signals through the shared wireless medium to improve spectral efficiency. For each frequency band, the proposed system utilizes a diversity combining that combines multiple signals and introduces a single improved signal with high signal-to-noise ratio for uplink transmission in the cloud-based Wi-Fi network.

Abstract: The present technique relates to a wireless communication device and a wireless communication method for enabling acquisition of control information even when a preamble signal cannot be acquired. The wireless communication device includes an OFDM signal generation section that generates an OFDM signal in which at least one of plural resource units obtained by channel band division is set as a control information resource unit for transmitting control information. The present technique is, for example, applicable to a wireless communication device, etc. that performs wireless communication conforming to a standard such as IEEE 802.11.

Abstract: A millimeter-wave phase array system may include massive heterodyne transceivers as its building elements. A transceiver of each element may include an IQ image rejection heterodyne transmitter and a receiver. Each transmitter may include a single DAC, a Tx I channel, and a Tx Q channel. Each receiver may include an Rx I channel, an Rx Q channel, and a single ADC. For Tx IQ image rejection calibration, amplitude and phase offsets are determined, using both the Tx I and Tx Q channels from a first element and using only one of the Rx I or Rx Q channel from a second element. The IQ channel imbalances are compensated using the offsets in analog domain. A similar procedure is used for Rx IQ image rejection calibration with alternated signal path enabling. A frequency response variation of an RF front end is detected with a single path Tx/Rx channel setup.

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently reporting channel state feedback for a set of subbands. As an example, a user equipment (UE) may receive a set of reference signals on the set of subbands and determine a respective channel quality indicator (CQI) index for each of the set of subbands based on the reference signals. The UE may then transmit indications of CQI indices for different subbands of the set using variable length indications, such as indications that include different numbers of bits. Since, in some examples, a small length or number of bits may be allocated for reporting CQI indices with a high probability of being reported, overhead in a wireless communications system may be reduced.

Abstract: The disclosure provides a communication system that includes sensors, a plurality of components, and processors. The sensors receive measurements related to a state of the communication system. The processors receive an indication of an amount of received power at a remote communication system and estimate a state of the plurality of components based on the received one or more measurements and the received indication. Using the indication and the estimated state, the processors determine whether the amount of received power is likely to fall below a minimum received power within a given time interval. When it is likely, the processors select an adjustment technique of a plurality of adjustment techniques for adjusting a data rate of the outbound signal and adjust a given component of the communication system using the selected adjustment technique to change the data rate of the outbound signal.

Abstract: A method for channel smoothing with transmit beamforming includes transmitting, by a first device, a non-data-packet (NDP) frame to a second device. The method also includes receiving, by the second device, the NDP frame and transmitting a compressed report to the first device. The method further includes receiving, by the first device, the compressed report and deriving a first beamforming matrix from the compressed report. A second beamforming matrix is generated employing a processing known to the second device, and a data frame is transmitted to the second device using the second beamforming matrix.

Abstract: In an aspect, a wireless device with a plurality of transmitter chains that can be selectively used to transmit a beam-formed signal determines a targeted receive power for the beam-formed signal, with respect to a target receiving device. The wireless device selects a number of the plurality of transmitter chains for forming the beam-formed signal, based on the targeted receive power and based on an estimated power consumption for each of the plurality of transmitter chains. The selection is performed so as to minimize a total power consumption, given the estimated power consumptions. The wireless device transmits a beam-formed signal, using the selected number of the plurality of transmitter chains.

Abstract: There is provided mechanisms for beam management. A method is performed by a network node. The method comprises performing abeam management procedure for terminal devices served by the network node. The method comprises transmitting, during a first part of the beam management procedure, a reference signal so as to enable each of the terminal devices participating in the beam management procedure to identify in which beam in a first set of beams, in which the reference signal is transmitted from the network node, the reference signal is received with highest received power. The method comprises transmitting, during a second part of the beam management procedure, the reference signal so as to enable each of the terminal devices to identify in which beam in a second set of beams, in which the reference signal is received from the network node by the terminal devices, the reference signal is received with highest received power.

Abstract: A circuit arrangement for amplifying radio signals between a terminal device and an antenna and to a corresponding circuit arrangement is disclosed. The circuit arrangement has a transmission amplifier path and a reception amplifier path. A signal power in a first frequency range in the transmitting direction is detected to determine a transmitted signal power and a signal power in a second frequency range in the receiving direction is detected to determine a received signal power. The detected transmitted signal power can be compared with the detected received signal power. If the detected transmitted signal power is stronger than the detected received signal power, the transmission amplifier path can amplify transmitted signals in the first frequency range. If the detected received signal power is stronger than the detected transmitted signal power, the reception amplifier path can amplify received signals in the second frequency range.

Abstract: A transmission device identification system includes: one or more reception units; a feature output unit that outputs, for each of the one or more reception units, a feature of a reception signal of the reception unit, the feature being corrected based on a receiver characteristic of the reception unit; and an identification unit that identifies a transmission device that is a radio wave transmitting source based on the feature and a transmission radio wave feature, the transmission radio wave feature indicating a feature of a transmission radio wave for each transmission device.

Abstract: A user equipment (UE) receives a parameter indicating a power control loop out of a plurality of power control loops and a first transmit power control (TPC) command. The UE transmit a first uplink physical channel based on the first TPC command and the indicated power control loop. Further, the UE receive a single downlink channel, wherein the single downlink channel carries a channel allocation and a second TPC command for the UE. The UE transmit a second uplink physical channel using resources based on the channel allocation and at a transmission power level based on the second TPC command.

Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises obtaining channel information. The method comprises determining, for at least one given precoder in a codebook, an uplink reference signal to physical antenna port mapping based on the channel information. The method comprises transmitting uplink reference signals in the physical antenna ports according to the determined mapping.

Abstract: A network node obtains, via a transmission and reception point (TRP) and from a terminal device not served by the network node, a packet comprising channel state information feedback indicating that a further packet is expected to be transmitted from the TRP on a downlink within a predefined time interval. The network node initiates transmission via the downlink of the TRP responsive to the channel state information feedback such that the transmission interferes with an uplink of the terminal device by less than a threshold amount during the predefined time interval.

Abstract: Certain aspects of the present disclosure provide techniques for dynamic multi-beam transmission for new radio eNB UE (NR) technology multiple-input multiple-output (MIMO) communications. A user equipment (UE) may measure beamformed channel state information reference signals (CSI-RSs) from one or more transmit and receive points (TRPs) and report rank information and/or channel quality information for beams associated with the various beamformed CSI-RSs.

Abstract: Methods, systems, and devices for wireless communications are described. Techniques for multiple transmission reception points (TRPs) in a cluster may coordinate scheduling and communications with a user equipment (UE). Different TRPs may allocate uplink resources for one or more UEs within a coordinated cluster to transmit feedback information. A first TRP may provide a first set of resources that one or more associated UEs may use to transmit acknowledgment (ACK) feedback to indicate successful receipt of a downlink transmission of the first TRP, and one or more other TRPs of the coordinated cluster may provide a second set of resources that the one or more UEs may use to transmit negative acknowledgment (NACK) feedback to indicate that a downlink transmission of the first TRP was lost. The second set of resources may include non-orthogonal multiple access (NOMA) resources.

Abstract: [Object] To achieve both prevention of harmful interference and promptness of power allocation under conditions in which multiple secondary systems may be managed. [Solution] Provided is a communication control apparatus including: a calculation unit configured to calculate a transmit power to be allocated, including a nominal transmit power and a margin for interference avoidance, for one or more secondary systems that secondarily use frequency channels protected for a primary system; and a determination unit configured to determine a variation in a number of secondary systems, and cause the calculation unit to adjust the margin for interference avoidance on a basis of the determined variation.

Abstract: An integrated terrestrial/non-terrestrial network may allow for enhanced network coverage. However, there are control and management challenges associated with an integrated terrestrial/non-terrestrial network because the network and user equipments (UEs) are no longer confined to only using conventional cellular communication via terrestrial transmit-and-receive points (T-TRPs). One challenge is how to perform beam management. In some embodiments, methods and systems are disclosed in which an indication of angular direction (e.g. beam direction) is provided by the T-TRP. The indication of angular direction may be used by a UE for communicating with a non-terrestrial TRP (NT-TRP), e.g. using beamforming. However, the methods are not limited to integrated terrestrial/non-terrestrial networks or the involvement of NT-TRPs, but apply more generally to indicating angular direction for directional communication.

Abstract: An apparatus and a method for configuring antenna arrays for scalable radio frequency (RF) architecture are dis-closed. A subset of antenna arrays are grouped into K groups and a receive or transmit weight vector is applied to each of the antenna arrays in each of the K groups. A channel response is measured for each of the antenna in the K groups. The response is summed for each group and complex scaling factors are calculated based on the summed response. Based on the scaling factors the antenna weight vectors arc updated and the updated weight vectors arc applied to the antenna arrays. The steps of grouping the antennas and refining the weight vectors are performed till the antenna weight vectors reach a steady point, i.e. the current antenna weight does not improve the beamforming gain by a predetermined threshold in comparison to the previous antenna weight.

Abstract: A method and system for controlling an operational mode of a first access node where the first access node provides a first cell and a second access node provides a second cell. An example method could include (i) determining a level of fading of the second cell, (ii) using the determined level of fading of the second cell as a basis to decide whether the first access node should operate in a blind-addition mode or rather a threshold-based-addition mode for adding a secondary connection in the second cell for a UE having a primary connection with the first access node in the first cell, and (iii) causing the first access node to operate in the decided mode.

Abstract: The present application provides a method and a wireless communication device, which includes selecting a total transmitter power target. A target transmitter power is identified for each of the transmitters operating separately at which each individual transmitter would meet a transmitted radio frequency signal exposure limit relative to a user of the wireless communication device. A fixed ratio is determined for each of the transmitters to be used with the total transmitter power target, based on the determined fixed ratio of the target transmitter power identified for each of the transmitters to the total transmitter power target.

Abstract: Aspects of the present disclosure provide methods, apparatuses, and embodiments for transmitting time critical uplink (UL) control information (e.g., beam failure indication, buffer status report, and scheduling request) without first obtaining UL timing synchronization with a network. Therefore, UL communication latency may be reduced by removing the signaling overhead involved in performing a full random access procedure to obtain UL synchronization prior to UL transmission.

Abstract: Systems and methods are disclosed herein that related to Peak-to-Average Power Ratio (PAPR) reduction in a (e.g., massive) Multiple-Input Multiple-Output (MIMO) Orthogonal Division Multiplexing (OFDM) transmitter system. In some embodiments, a method of operation of a MIMO OFDM transmitter system comprises, for each carrier of two or more carriers, performing precoding of a plurality of frequency-domain input signals for the carrier to provide a plurality of frequency-domain precoded signals for the carrier, the plurality of frequency-domain input signals for the carrier being for a plurality of transmit layers for the carrier, respectively. The method further comprises processing the frequency-domain precoded signals for the two or more carriers in accordance with a multi-carrier Convex Reduction of Amplitudes (CRAM) processing scheme to provide a plurality of multi-carrier time-domain transmit signals for a plurality of antenna branches, respectively, of the MIMO OFDM transmitter system.

Abstract: A base station transmits a first transmission using a first directional beam and determines an equivalent isotropic radiated power (EIRP) relationship between the first transmission and a physical downlink shared channel (PDSCH) for a user equipment (UE). The base station transmits, to the UE, an indication of the EIRP relationship between the first transmission and the PDSCH. Then, the base station transmits the PDSCH to the UE using the second directional beam. The UE uses the indication of the EIRP relationship to receive the PDSCH from the base station over the second directional beam.

Abstract: A PDMA terminal establishes communication by forming a plurality of spatial paths to another single radio apparatus. A plurality of antennas constituting an array antenna are divided into a plurality of subarrays corresponding to the plurality of spatial paths respectively. An adaptive array processing unit can perform an adaptive array processing for each of the plurality of subarrays. A memory stores in advance information on the number of antennas associated with the number of spatial paths that can be formed by the array antenna. A control unit controls a processing to transmit possible multiplicity information to another radio apparatus at a prescribed timing.