In one embodiment, an apparatus includes a memory storing computer readable instructions; and at least one processor configured to execute the computer readable instructions, which configure the processor to receive data/attributes from a radio access network, RAN, related to a carrier aggregation operation performed by the RAN; determine at least one adjustment to the carrier aggregation operation based on the received data/attributes; and send the at least one adjustment to the RAN.

A base station and a related method are provided. The base station includes a transmitter which, in operation, transmits, to a user equipment (UE), values configured for different base station coordination types, respectively, wherein each of the base station coordination types defines which base stations among multiple base stations perform coordinated transmission in that base station coordination type. The base station further includes a receiver which, in operation, receives a channel quality indicator (CQI) reported from the UE, wherein the CQI is calculated at the UE in reference to the values.

A system and method for scheduling cooperative uplink transmissions in a virtual multiple input multiple output (MIMO) wireless communication environment are provided. More specifically, both random and channel aware orthogonal scheduling techniques for identifying a sub-set of N mobile terminals to provide cooperative uplink transmissions for each transmit time interval are provided.

A communication system including a plurality of radio base stations and a control apparatus coupled to the plurality of radio base stations, the control apparatus comprising a first memory and a first processor configured to determine at least one transmission pattern that indicates a combination of transmission states for each of the plurality of radio base stations at a specified timing, and transmit, to each of the plurality of radio base stations, control information including information that indicates an allocation of radio resources determined based on the at least one of transmission patterns, wherein each of the plurality of radio base stations are comprises a second memory and a second processor configured to execute, based on the control information, transmission control on a terminal that communicates with each of the plurality of radio base stations.

A device and method for transmission and reception of control and data channels with a group reference signal (GRS). A GRS may include a first common reference signal associated with a first group of users and a second common reference signal associated with a second group of users. Some users or channels can be grouped to use one set of common reference signals and other users or channels can be grouped to use another set of common reference signals.

A system and method for multiple point transmission in a communications system are provided. A method for multiple point transmission operation comprises modifying a configuration of a radio bearer for use in a multiple point transmission to a user equipment according to operating condition information of the user equipment, reconfiguring the radio bearer according to the modified configuration, and initiating a multiple point transmission to the user equipment using the reconfigured radio bearer.

A system includes a processor and memory to execute an application. The application receives feedback from a target regarding ability of a plurality of resources of the target to service requests from one or more clients. The feedback includes a metric indicative of a load of each of the resources. The application calculates weights for the resources based on the feedback. A weight for a resource is based on a product of a first term that determines a maximum difference in probabilities of selection between two resources and a second term including an exponent that is a difference between a current load of the resource and a current minimum load across the resources determined based on the feedback. The application selects, for servicing a request from one of the clients, one of the resources in round robin manner based on the weights to evenly utilize the plurality of resources.

A device and method for transmission and reception of control and data channels with a group reference signal (GRS). A GRS may include a first common reference signal associated with a first group of users and a second common reference signal associated with a second group of users. Some users or channels can be grouped to use one set of common reference signals and other users or channels can be grouped to use another set of common reference signals.

Method to perform joint scheduling in the downlink or in the uplink of a centralized OFDM radio access network for a plurality of users considering time, frequency and space domains, scheduler device thereof and computer program products. The method to be applied in the downlink or in the uplink of a centralized radio access network based on OFDM, whereby a set of remote radio heads of a set of remote units are connected to a central unit, that performs all (or part of) the radio-related processing tasks, wherein the scheduling exploit CoMP, NOMA and RF conditions and resource blanking techniques.

One or more of multiple UEs with a pending payload are assigned to individual sets of PRBs. The allocating assigns X of N total PRBs to be transmitted, X<N, wherein the allocating is performed to accommodate transmission of the corresponding payloads, given a required MCS for each of the one or more UEs, to meet an initial error rate for transmission of the payloads. One or more of the remaining NX PRBs are reassigned to at least one user equipment that has already been allocated one or more PRBs. The MCS to be used for the at least one user equipment is adjusted given a total number of assigned PRBs per individual ones of the at least one user equipment. The adjusting lowers the initial error rate to a final error rate. The pending payloads are transmitted to the one or more UEs using the PRBs and the corresponding MCS.