Abstract: To provide a communication apparatus which controls channel access operation under a multi user environment, and a communication method. Channel access operation of each STA after an MU mode is finished is controlled through a trigger frame from an AP to prevent collision immediately after the MU mode is finished. Further, the AP sets a smaller CW upon transmission of the trigger frame than a CW of an STA to preferentially transmit the trigger frame and give priority to communication in the MU mode over communication in an SU mode. Further, by the CW of each STA upon switching of the mode being not reset, a transmission waiting period after the MU mode is finished is shortened.

Abstract: Embodiments of a method performed by a base station for adaptive Channel State Information (CSI) reporting configuration and/or Physical Resource Block (PRB) bundling and corresponding embodiments of a base station are disclosed. In some embodiments, a method performed by a base station comprises obtaining one or more parameters comprising one or more measurements of channel dispersiveness of a wireless channel between the base station and a User Equipment (UE), an uplink (UL) power-limited status of the UE, and/or an allocation bandwidth for the UE. The method further comprises selecting, based on the one or more parameters, a CSI report configuration for the UE and/or a PRB bundling configuration for the UE. The method further comprises transmitting, to the UE, information that indicates the selected CSI report configuration and/or information that indicates the selected PRB bundling configuration.

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing techniques for providing a user equipment (UE) with on-demand reference signals for location related measurements of the UE. The UE can receive location assistance data from a network server, where the location assistance data includes information about a plurality of downlink reference signals that can be used to perform location related measurements by the UE. The UE can send a request to a base station for a reference signal. The reference signal is selected from the plurality of downlink reference signals of the location assistance data. Furthermore, the UE can receive the reference signal from the base station, and perform a location related measurement based on the received reference signal.

Abstract: A computing system and related method protect a computer network connection manager's resources from attempted resource attacks by extracting SrcIP and TTL values from received data packet headers. Extracted SrcIP and TTL values are analyzed to determine the probability that a received data packet is malicious. If the probability exceeds a specified threshold, resources are denied, and the packet is dropped. If the specified threshold is not exceeded, resources are allocated to the received data packet. The SrcIP reputation score, TTL value frequency, SrcIP frequency, SrcIP geo-location, and resource occupancy may all be used in computing the probability of a malicious data packet. These factors may be weighted and summed to calculate the probability of a malicious data packet.

Abstract: Apparatuses, systems, and methods for radio resource management (RRM) signal reception. A user equipment device (UE) may receive, via a first reception path, an RRM related signal and receive, via a second reception path, a non-RRM related signal that may be multiplexed with the RRM related signal onto a symbol. The first reception path may be a first antenna port of an antenna panel or a first antenna panel of the UE and the second reception path may be a second antenna port of the antenna panel or a second antenna panel of the UE. The RRM related signal may include a reference signal for RRM. and may be included in a non-zero power (NZP) interference measurement.

Abstract: A superdirective antenna array multi-user precoding method, a device, and a medium belonging to the field of wireless communication are provided. The method includes: constructing a unitary matrix U ? CM×M for terminal users U, last N(N?K?1) columns of the unitary matrix U being an orthonormal basis of the interfering user channel space span {hi,i=1, . . .

Abstract: The present disclosure provides a method for estimating timing and/or frequency of a wireless signal; the method including the steps: receiving a digitally modulated signal; extracting a plurality of signal samples associated with a short training field (STF) of a PHY protocol data unit (PPDU) of an 802.11 frame; performing correlation operations on the plurality of signal samples to generate a predetermined number of correlation peaks; comparing the generated correlation peaks with a variable dynamic threshold; and calculating timing and/or frequency of the digitally modulated signal using the outcome of the comparing step.

Abstract: There is provided a method, and application server for enabling recording of communications transmitted via an Internet Protocol Multimedia Subsystem Network. A call request is received from a first party to call a second party and a database, comprising a plurality of subscriber profiles, is queried to obtain subscriber configuration data relating to at least one of the first party and the second party. Based on the subscriber configuration data, media streams are caused to be transmitted between the first party and a Media Resource Function, between the second party and the Media Resource Function, and from the Media Resource Function to a recording device to record at least part of a call between the first and second party. A communications network and a user device are also provided.

Abstract: An apparatus for controlling network access includes an access and mobility management function module (AMF) and a performance management module. The AMF provides, to a user equipment (UE), information about permissible sensors supporting a sensor-based network access from among sensors possessed by the UE. The performance management module stores the permissible sensor information. Upon receiving a list of the sensors possessed by the UE from the UE, the AMF extracts, from the performance management module, the permissible sensor information including a list of the permissible sensors and a permissible condition for permitting network access through the permissible sensors.

Abstract: A transport network slice subset management entity is configured to provide an NSSMF of a TN, wherein the transport network slice subset management entity is configured to receive from or send messages to a network slice management entity and to provide configuration information to entities of a transport network. A method for interfacing with a transport network slice subset management entity, comprises the steps receiving, from a request originator, a message comprising a request relating to a network slice subset instance, updating a network slice database of a transport network, according to said request and configuring an entity of a transport network according to said request. A network slice management entity configured to provide an NSMF is configured to send messages to or receive messages from a transport network slice subset management entity.

Abstract: Systems, devices, and techniques for preemption indication in wireless communication systems are described. A described technique includes receiving, by a User Equipment (UE) via a physical downlink control channel (PDCCH), a downlink control information (DCI) message in a Control Resource Set (CORESET) configured with a transmission configuration indicator (TCI) state, the TCI state being associated with a transmission reception point (TRP), the DCI message comprising a downlink preemption indication for the TCI state; and applying preemption to a reference signal or a channel associated with the TCI state responsive to the downlink preemption indication.

Abstract: Methods and techniques are described for supporting location services for a user equipment (UE) that is using Narrowband Internet of Things radio access or Cellular Internet of Things features to access a wireless network. The techniques include enabling support for a last known location of a UE, using previously obtained location measurements, when a UE is not reachable from a wireless network for positioning. The techniques also include limiting positioning protocol interaction between a UE and a location server via a reduced maximum message size, reduced message volume and longer response and retransmission timers. The techniques further include enabling a UE to obtain location measurements when not connected to a wireless network, enabling periodic and triggered location of a UE in which a UE evaluates location triggers while not connected to a wireless network, enabling use of deferred location and enabling improved location security.

Abstract: Embodiments of the present application provide a wireless communication method, a terminal device and a network device, which can implement interference measurement. The method including: receiving, by a terminal device, first configuration information, the first configuration information including m pieces of resource indication information, where a resource indicated by the m pieces of resource indication information is used for performing SRS-based RSRP measurement and/or RSSI measurement, m is a positive integer greater than or equal to 1; performing, by the terminal device, the SRS-based RSRP measurement and/or the RSSI measurement on the resource indicated by the m pieces of resource indication information.

Abstract: In an example embodiment a data transmission device for transmitting data packets comprises at least one receive interface configured to receive data packets from a respective data source; a respective receive buffer configured to buffer the data packets received via the respective receive interface; a transfer device configured to transfer the data packets from the respective receive buffer to a transmit buffer, the transmit buffer selected for the respective data packet from a plurality of existing transmit buffers; and a respective transmit interface configured to transmit the data packets stored in the respective transmit buffer to a receiving device, wherein the transfer device is configured to transfer the respective data packet from the respective receive buffer into the selected transmit buffer only when an enable condition exists, the enable condition being based on a fill level of one of the transmit buffers other than the selected transmit buffer.

Abstract: Provided is a positioning reference signal generation method, which includes the following steps: allocating a time-frequency resource to a positioning reference signal, where the time-frequency resource includes at least two consecutive symbols; and according to generation information of the positioning reference signal and the time-frequency resource, taking the at least two consecutive symbols as a combined PRS symbol to generate the positioning reference signal which is consecutive in a time domain based on a preset generation mode. Further provided are a positioning reference signal generation apparatus, a base station and a readable storage medium.

Abstract: A communications system is described that has a base station and a number of user devices, including legacy user devices and non-legacy user devices. The base station generates control data for transmission to the user devices, the control data including common control data for reception and decoding by a plurality of user devices and user specific control data for reception and decoding by a specific user device. The common control data is for reception and decoding by the non-legacy user devices and cannot be decoded by the legacy user devices. The common control data is repeated within multiple subframes for reception and decoding by non-legacy user devices. The non-legacy user devices are typically Machine Type Communications (MTC) user devices.

Abstract: An exemplary method, for preventing an outage in a network, includes collecting network metrics and producing statistical features of the network during a predetermined time window based on statistical analysis of the collected metrics. The method further includes selecting, from the produced statistical features, a first data set of relevant statistical features. Further, the method includes collecting information about a past event, extracting event data from the past event, and vectorizing the extracted event data to form a second data set. The method further includes concatenating the first data set and the second data set to form a third data set and classifying the third data set relative to a model of historical network performance to determine a probability of the outage. Further, the method includes modifying, in response to the probability being above a threshold, the network/activity within the network to avoid onset of the outage.

Abstract: An urban design pipeline automatically generates design options for an urban design project. The urban design pipeline includes a geometry engine and an evaluation engine. The geometry engine analyzes design criteria, design objectives, and design heuristics associated with the urban design project and then generates numerous candidate designs. The design criteria specify a property boundary associated with a region of land to be developed. The design objectives indicate a specific type of topology that is derived from an existing urban layout. The design heuristics include different sets of construction rules for generating designs with specific types of topologies. The geometry engine generates candidate designs that conform to the property boundary and have topological characteristics in common with the existing urban layout.

Abstract: Apparatuses, methods, and systems are disclosed for monitoring a QoS parameter. One apparatus includes a processor and a transceiver that receives a request to monitor a QoS parameter for a data connection of a remote unit. The processor modifies a downlink packet to include an indication for a QoS monitoring report. The transceiver receives a QoS monitoring result from an access network node in response to delivery of the modified downlink packet and the processor determines a value of the QoS parameter based on delivery information of the downlink packet.

Abstract: An acquisition unit acquires a communication feature for normal communication of communication equipment. If a data count or a data acquisition period for the acquired communication feature exceeds a predetermined value, an amplification unit amplifies the data count for the communication feature by a plurality of predetermined schemes in accordance with data counts for respective groups, each group sharing a same 5-tuple. A creation unit creates, for each of the predetermined schemes, reference value information for normal communication of the communication equipment through learning using the amplified communication feature. A determination unit determines accuracy of abnormality detection for each of the predetermined schemes using an anomaly score representing a deviation of test data representing a communication feature for abnormal communication from the reference value information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information for a received signal strength indication (RSSI) measurement, the configuration information indicating a transmission configuration indication (TCI) state configuration for the RSSI measurement. The UE may perform the RSSI measurement based at least in part on the TCI state configuration. The UE may transmit a measurement report of the RSSI measurement. Numerous other aspects are described.

Abstract: The present specification proposes a technical feature for increasing a transmission range of a wireless LAN signal. The wireless LAN signal of the present specification, e.g. a transmission physical protocol data unit (PPDU), may be configured on the basis of a duplicate transmission mode. The transmission PPDU of the present specification may comprise a data unit duplicated in frequency. The data unit duplicated in frequency may be configured on the basis of a total bandwidth of the transmission PPDU. The transmission PPDU of the present specification proposes various training fields for the duplicated data unit.

Abstract: Embodiments of this application disclose a signal processing method and a related apparatus, to estimate a passive intermodulation (PIM) signal strength. The method in embodiments of this application includes: obtaining first downlink signal data corresponding to each of N cells in a preset bandwidth resource scheduling solution. Then, first characteristic data corresponding to each piece of the first downlink signal data is determined. Then, a first passive intermodulation PIM signal strength corresponding to a first cell is determined based on a preset signal strength evaluation model and the first characteristic data corresponding to each of the N cells, to accurately estimate impact of the first PIM signal on the first cell.

Abstract: Aspects are presented herein of apparatuses, systems, and methods for measurement gap configuration. A cellular network may establish communication with a UE using a first and second cell. The cellular network may configure bandwidth parts (BWPs) for the first and second cell, including a first and second BWP for the first cell and a third and fourth BWP for the second cell. A measurement gap configuration that specifies when the UE is to use a first measurement gap pattern may be provided to the UE. At a first time, the cellular network may communicate with the UE using the first BWP for the first cell and the third BWP for the second cell, based on the first measurement gap pattern. At a second time, the cellular network may communicate with the UE using the second BWP for the first cell based on a modification of the first measurement gap pattern.

Abstract: A communications method and apparatus are provided. The terminal device performs measurement on a first secondary component carrier (SCC), wherein the terminal device is capable of measuring, on the first SCC, at least six cells and 24 synchronization signal blocks (SSBs), the 24 SSBs have different physical cell identifiers and/or time indexes, the physical cell identifiers are used to identify different physical cells, and the time indexes are used to identify different SSBs; wherein the first SCC is configured to report an SSB-based measurement result.

Abstract: Embodiments of this application provide a feedback information transmission method and apparatus and a communications device. The method includes: receiving, by a first node, a group of target information sent by a second node, where each piece of target information in the group of target information includes a first information field and a second information field, the first information field includes M bits of feedback information for a group of data channels or a group of transmission resources, M is a positive integer, and the second information field is used for determining a correspondence between the first information field and the group of data channels or the group of transmission resources.

Abstract: Methods and apparatus for using a first number of antennas at one base station, e.g., at a first CBSD, in combination with a second, e.g., lesser number of antennas at another base station to provide different wireless terminals communications channels with different channel conditions are described. A ‘relay mode’ of operation at the second base station facilitates communication of data from the first base station. In this way the second base station is used to relay data sent from the first base station while the UE perceives the data as having been sent over the air by the first base station. The channels from the first and second base stations operate together providing a composite channel that will have different channel conditions than would be possible using simply the antennas of the first base station. Differences in channels to different UEs facilitates transmission scheduling at the first base station.

Abstract: Methods and system to determine the health of wireless mesh networks are provided. Each radio node of a wireless mesh network transmits Link Quantification Messages (LQMs) interPAN at maximum power to enable adjacent nodes to determine the Received Signal Strength Indication (RSSI) on the wireless link to that radio node. Each radio node also transmits LQMs at successively lower power levels. The adjacent nodes detect a power level at measurable packet error rate to determine a noise floor for the wireless link. An aggregator collects link quantification information from the radio nodes and forms an intercommunication matrix for the wireless network. The RSSI and power level at measurable packet error rate information is used to remove unreliable links from the intercommunication matrix. Nodes are ranked and the reliability and dependability of the nodes is calculated to show the network health.

Abstract: A computer-implemented method is presented for scanning a computer network. The method includes: a) sending a particular network probe to a network address in a computer network; b) receiving a response to the network probe from the network address; c) appending the response to a set of features forming a feature vector; d) determining a next network probe to conduct at the network address; and e) predicting, by the computer processor, the response from the next network probe using the feature vector and a model, where the model is trained using a machine learning method and outputs a probability that a given network address will respond to a network probe.

Abstract: A first audio timestamp of first audio is corrected based on a first latency corresponding to the first audio, to correct a correspondence between the first audio timestamp, the first audio, and a first image. In this way, a stored correspondence between the first image and the first audio is consistent with a correspondence between a picture corresponding to the first image and a sound corresponding to the first audio, thereby implementing audio and image synchronization.

Abstract: A method for enabling a round-trip packet loss measurement between two nodes of a packet-switched communication network exchanging packets comprising a packet loss field settable to an idle value or one or more measurement values. The first node transmits to the second node first packets having the packet loss field set to a measurement value. Upon reception of each first packet, the second node transmits back to the first node a respective second packet having the packet loss field set to a measurement value. Upon reception of each second packet, the first node transmits back to the second node a respective third packet having the packet loss field set to a measurement value. A measurement point placed between the two nodes may count the number of first packets and the number of third packets and use them to provide a round-trip packet loss measurement.

Abstract: The present application generally relates to wireless communication technology. More particularly, the present application relates to a method and apparatus for performing protection control in a core network with separation between control plane and user plane. The present application also relates to computer program product adapted for the same purpose. According to one embodiment, a method for performing protection control in a core network with separation between control plane and user plane, comprises the following steps performed on the user plane: —a) pairing a User Plane Function (UPF) and at least one User Plane Security Function (UPSF); and —b) notifying a pairing relationship between the UPF and the UPSF to the control plane so that the pair of the UPF and the UPSF can be controlled by a Control Plane Function (CPF) via the same reference point.

Abstract: In a method for a user equipment to transmit a sidelink signal in a wireless communication system, a first complex-valued modulation symbol associated with a sidelink control signal is mapped to a control resource included in a sidelink resource, at least one second complex-valued modulation symbol associated with a sidelink data signal is mapped to a data resource included in the sidelink resource, a preset value is mapped to a plurality of subcarriers included in the sidelink resource, the at least one first complex-valued modulation symbol, the at least one second complex-valued modulation symbol, and the preset value are orthogonal frequency division multiplexing (OFDM)-modulated to generate the sidelink control signal and the sidelink data signal, and the sidelink control signal and the sidelink data signal are transmitted.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a synchronization signal block (SSB) including a physical layer cell identifier (PCI), where one or more resource elements carrying the SSB overlap with resource elements carrying a downlink shared channel associated with another PCI. The PCIs may be for a serving cell or another cell, such as a non-serving cell. The UE may also receive one or more demodulation reference signals (DMRSs) in the one or more resource elements in the downlink shared channel. The UE may determine whether overlap is permitted between the resource elements by comparing the PCIs of the SSB and the downlink shared channel. In some examples, once the UE determines whether resource element overlap is permitted, the UE may process the DMRSs.

Abstract: A method and apparatus to address changes in quality of service in a communication link between two user equipment devices includes establishing the communication link between a first user equipment device and a peer user equipment device, where the communication link services an application executing on the first user equipment. The first user equipment device monitors a current quality of service on the communication link and detects a condition wherein the current quality of service may not be met. Adjusted configuration parameters for the application and new quality of service parameters for the communication link are determined. The adjusted configuration parameters are applied to the application and the new quality of service parameters are applied to the communication link.

Abstract: Techniques are described to enable a user equipment (UE) to save power consumption and/or can enable the UE to acquire the channel state in time without reducing the UE's data transmission efficiency. An example technique includes determining, by the communication device, an operating mode based on a first signaling, and operating the communication device in the operating mode, where the operating mode includes any one of a normal mode, a first power saving mode, a second power saving mode, a third power saving mode, or a fourth power saving mode.

Abstract: Facilitating notification and corrective actions related to endpoint quality of service losses in advanced networks (e.g., 5G, 6G, and beyond) is provided herein. Operations of a method can comprise determining, by a system comprising a processor, that a quality of service level for a mobile device within a communications network has degraded below a threshold quality of service level. The method also can comprise in response to the determining, selecting, by the system, an action to be performed at a mobile device. The action can increase the quality of service level for the mobile device above the threshold quality of service level. Further, the method can comprise providing, by the system and to the mobile device, information indicative of the action.

Abstract: A method for assisting in position determination in a wireless communication system comprises obtaining (S1) of pairs of radio frequency environment data sets for each of a plurality of common positions. A pair of radio frequency environment data sets comprises radio frequency environment data of devices of a first access technology and a second access technology at a common position. A transformation operator is created (S2) based on the pairs. The transformation operator represents a relation between radio frequency environment data sets of the first and second access technology. A method for position determination in a wireless communication system based on transformation operator and network nodes therefore is also disclosed, as well as network nodes for performing the methods.

Abstract: Some examples relate to classifying IoT malware at a network device. An example includes receiving, by a network device, network traffic from an Internet of Things (IoT) device. Network device may analyze network parameters from the network traffic with a machine learning model. In response to analyzing, network device may classify the network traffic into a category of malware activity. Network device may determine an effectiveness of network traffic classification by measuring a deviation of the network parameters from previously trained network parameters that were used for training the machine learning model. In response to a determination that the deviation of the network parameters from the trained network parameters is more than a pre-defined threshold, network device may generate an alert highlighting the deviation, which allows a user to perform a remedial action pertaining to the IoT device.

Abstract: A system for exploiting a non-transmission-designated interval in a cycle of a protocol can include a processor and a memory. The memory can store a retrieval module, an alternative transmission determination module, and a schedule module. The retrieval module can cause the processor to retrieve, by a specific node associated with a set of nodes in a network, information about the set. The information can include, for a node in the set, identifications of a frequency and a time slot of a transmission-designated interval in a cycle of the protocol. The alternative transmission determination module can cause the processor to determine, based on the information, an existence, in the set, of a non-transmission-designated interval that has a duration greater than a threshold duration. The schedule module can cause the processor to schedule, in response to the existence, the specific node to produce a transmission during the non-transmission-designated interval.

Abstract: A link balance adjustment method includes the following steps. A connection port initiates a balance adjustment process through an interrupt signal. A microprocessor provides an adjustment parameter for an external device from a register and transmits the adjustment parameter to the connection port. A measurement signal is initiated by the microprocessor, and the measurement signal enables the connection port to measure the signal quality after the adjustment parameter has been applied by the external device. The microprocessor determines whether the connection port needs to perform a preprocessing. When the microprocessor determines that the connection port needs to perform a preprocessing, the connection port performs the preprocessing and generates preprocessing data. The connection port transmits the preprocessing data to the register. The microprocessor reads the preprocessing data or the signal quality in the register.

Abstract: A wireless local area network (WLAN) access point (AP) transmits a ready-to-send (RTS) frame. In response to the transmitted RTS frame and during a transmission opportunity (TXOP), a clear-to-send (CTS) frame from a first station is received. The WLAN AP further transmits at least one data frame in response to the received CTS frame and in response to the transmitted at least one data frame, an acknowledgement from the first station. The WLAN AP further transmits, in response to the received acknowledgement signal, a first medium access control (MAC) frame which is received by a second station, and the WLAN AP receives, in response to the transmitted first MAC frame and during the TXOP, a second MAC frame from the second station.

Abstract: Methods and apparatus, including computer program products, are provided In one aspect there is provided a method. The method may include detecting, at a first node, an event; generating, at the first node, a message in response to the detected event; and sending, at the first node, the message to at least a second node to enable the second node to determine at least one of a reliability or an importance of the message. Related apparatus, systems, methods, and articles are also described.

Abstract: Physical Uplink Control Channel (PUCCH) can be effectively allocated and utilized by base stations and mobile stations. In an exemplary embodiment, a mobile station receives from a base station an allocation of a first set channel resource groups. The base station assigns a second set of channel resource groups. The mobile station decodes, based on the second set of channel resource groups, one or more channel resources to transmit messages to the base station. A benefit of the disclosed exemplary embodiments is that a base station can dynamically assign channel resources to a mobile station.

Abstract: A user equipment device obtains a first measurement using a first CSI-RS sub-resource and a second measurement using a second CSI-RS sub-resource. The user device derives a single CSI-process based on the first and the second measurements and reports the CSI-process to a base station. The user device receives a message from the base station configuring the first and second CSI-RS sub-resources corresponding to the single CSI-process to be reported by the user device. The message from the base station comprises a configuration of the first CSI-RS sub-resource and a separate configuration of the second CSI-RS sub-resource. The configuration of each CSI-RS sub-resource comprises, for the corresponding CSI-RS sub-resource, at least a CSI-RS sub-resource index, a periodicity, and an offset. The user device may alternatively obtain measurements using any number of CSI-RS sub-resources and then derive and report a single CSI-process based on the plurality of measurements.

Abstract: The disclosed technology teaches techniques for generating a high quantity of internet traffic flows, such as in the form of data packets, to stress test network components by using range variable field modifiers. The techniques generate a large scale of flows at a relatively fast speed by using a process that may involve a finite state machine feedback loop and a multiple range variable field modifier process. Start and end range pointers for range entries of data packet modifiers are stored in memory and used with pointer and counter values, which are varied and updated in a relatively fast feedback loop. Data packet modifiers may be selected based on the pointer and counter values and are used to modify or generate data packets.

Abstract: A method includes transmitting packets of first and second traffic subflows via a first radio bearer to a second device; detecting that further packets of the second traffic subflow are to be transmitted via a second radio bearer to the second device; and transmitting a packet data unit via the first radio bearer to the second device, wherein the packet data unit includes an indication of a switch of the second traffic flow. Another method includes receiving from a first device packets of first and second traffic subflows via a first radio bearer; receiving from the first device a packet data unit including an indication that further packets of the second traffic subflow are to be received via a second radio bearer; establishing the second radio bearer between a second device and the first device; and receiving the further packets of the second traffic flow via the second radio bearer.

Abstract: Systems and methods for broadcast/multicast transmission in a distributed cell-free massive Multiple Input Multiple Output (MIMO) network are disclosed. In one embodiment, a method for broadcasting/multicasting data to User Equipments (UEs) comprises, at each Access Point (AP) of two or more APs, obtaining long-term Channel State Information (CSI) for a UE(s) and communicating the long-term CSI for the UE to a central processing system. The method further comprises, at the central processing system, receiving the long-term CSI for the UE from each AP, computing a precoding vector (w) for the UE(s) across the APs based on the long-term CSI, and communicating the precoding vector (w) to the APs. The method further comprises, at each AP, obtaining the precoding vector (w) from the central processing system, precoding data to be broadcast/multicast to the UE(s) based on the precoding vector (w), and broadcasting/multicasting the precoded data to the UE(s).

Abstract: An approach is described for a user equipment (UE) to receive a channel state information (CSI) reporting configuration message from a source device of a first cell and receive a channel state information reference signal (CSI-RS) from a second cell via the source device. The UE determines a first number of CSI-RS resources of a first time slot duration corresponding to the first cell, a second number of CSI-RS resources of a second time slot duration corresponding to the second cell, an overall time slot duration based on the first and the second time slot duration, an overall number of CSI-RS resources of the overall time slot duration based at least on the first and the second number of CSI-RS resource, generates a capability report at least based on the overall number of CSI-RS resource, and transmits the capability report to the source device.

Abstract: A method and user equipment (UE) for obtaining power headroom information in a communication system are provided. The method includes acquiring information for a path loss reference, wherein the information for the path loss reference indicates whether the UE applies as the path loss reference either a downlink of a primary cell or a downlink of a secondary cell (SCell), triggering a power headroom report (PHR) if a prohibitPHR-Timer expires and a path loss is changed more than a threshold for at least one activated cell which is used as the path loss reference, and obtaining power headroom information for each activated cell, if extended PHR is used and an uplink resource is allocated for new transmission.