Abstract:
A method for partitioning a communications network includes selecting, by a controller, a starting communications controller for a first region in the communications network according to an interference level. The method also includes including, by the controller, a first neighboring communications controller in the first region if an average inter-cell interference level of the starting communications controller and the first neighboring communications controller exceeds a first threshold and closing the first region if the average inter-cell interference level of the starting communications controller and the first neighboring communications controller fails to exceed the first threshold. The method further includes storing information about the first region in a memory.
Abstract:
Soft information for achieving interference cancellation in downlink transmissions can be communicated over device-to-device (D2D) links, thereby allowing paired user equipments (UEs) to receive downlink transmissions over the same radio resources. More specifically, paired UEs that receive transmissions over the same time-frequency resources may exchange soft or hard information over D2D links in order to facilitate interference cancellation. The D2D links may be unidirectional or bidirectional, and may be established over in-band or out-of-band resources. Paired UEs may be in the same or different cells, and may receive their respective transmissions from the same or different transmit point. UEs may be paired with one another based on various criteria, e.g., interference cancellation capabilities, scheduling metrics, etc.
Abstract:
System and method embodiments are provided to support network communications with groups of UEs. The embodiments include a two-level group-based hybrid-automatic repeat request (HARQ) mechanism and acknowledgement (ACK)/negative ACK (NACK) feedback. An embodiment method includes receiving, at a UE within a virtual multi-point (ViMP) comprising UEs, a data packet for a target UE (TUE) that is broadcasted from a base station (BS) to the ViMP node, decode the data packet, and upon successfully decoding the data packet, broadcasting the data packet to the UEs within the ViMP node until a timer pre-established by the BS expires or an ACK message is received from the TUE or the ViMP node. In an embodiment, broadcasted data received in the ViMP node is re-broadcasted upon receiving a negative acknowledgment (NACK) message from the TUE, a beacon UE, or any of the UEs within the ViMP node.
Abstract:
An embodiment method includes selecting, by a network infrastructure manager, a first user equipment (UE) as a destination UE and selecting a second UE as a relay UE for the destination UE. The method further includes negotiating installation of a virtual range extender (vREX) UE on the destination UE, and negotiating installation of a vREX forwarding agent (FA) on the relay UE. The vREX FA is configured to act as a FA for the vREX UE.
Abstract:
Multi-spectrum relays may improve the throughput and resource utilization of networks by relaying data from a transmit point to a receive point using both licensed and unlicensed spectrum. A multi-spectrum relay may receive data from the transmit point on one band, and relay the data to the receive point on another band. The multi-spectrum relay may cache data for re-transmission. Various frequency allocation schemes may be used to leverage the capabilities of multi-spectrum relays. When the complementary band includes higher frequencies than the primary band, access links between a base station and cell-edge users may carry wireless transmissions over the primary band, while access links between relays and cell-edge users may carry wireless transmissions over the complementary band.
Abstract:
In aspects of a Selective Retransmission Request (SeRQ) protocol proposed herein for wireless communication, a UE may group Retransmission Request (RTQ) feedback information bits for a plurality of transport blocks (TBs). The RTQ feedback information may be understood to indicate, to a non-terrestrial transmit receive point (NT-TRP), which TBs, among the plurality of TBs in the window, were not decoded properly. UEs may generate RTQ feedback information bits for a group of TBs received during a single window or TBs that have been received during multiple, distinct windows. The generation, by the UEs, of the RTQ feedback information bits for a group of TBs may be encoded based on, e.g., source coding, codebooks, binomial coefficients, etc. Upon receipt of a retransmitted version of a given TB, the UE may combine previously received bits of the given TB with the retransmitted TB version of the given TB.
Abstract:
Aspects of the present application relate to a multi-link and/or multi-carrier serving cell configured to enable a flexible, multi-connectivity framework among terrestrial network carriers and non-terrestrial network carriers. Within the multi-link serving cell, uplink carriers and downlink carriers in paired spectrum or unpaired spectrum may be decoupled from each other and or may be shared across different link-types. Multiple downlink carriers may be configured within a single cell (i.e., within a single, multi-carrier cell) and each uplink carrier may be associated with, or linked to, multiple downlink carriers.
Abstract:
Carrier aggregation and dual connectivity leverage multiple component carriers to increase the effective bandwidth available to a given UE. Embodiments of this disclosure extend the concept of carrier aggregation and dual connectivity by using a physical component carrier and one or more virtual component carriers from one physical component carrier group and/or one virtual component carrier group, which have the same carrier frequency and carrier bandwidth as the physical component carrier, to transmit data streams to a user equipment. Data streams communicated over the physical component carrier and the virtual component carrier(s) may be orthogonal in the time domain or code domain. Alternatively, data streams communicated over the physical component carrier and the virtual component carrier(s) may be non-orthogonal, in which case the UE may need to decode the respective data streams using non-orthogonal signal processing techniques.
Abstract:
Some embodiments of the present disclosure provide for signaling, by a transmit receive point, of information that allows a user equipment to perform a beam tracking procedure. The information may indicate a shift of direction for a transmit beam with respect to a reference beam direction. In addition to signaling a shift of direction for a transmit beam, aspects of the present application relate to a method of detecting, at the user equipment, beam misalignments. The beam misalignments may be detected in the absence of an estimate of location of the user equipment, in the absence of an estimate of location of the transmit/receive point and in the absence of an estimate of a mobility pattern. Aspects of the present application also relate to a method of using a transmit/receive beam pair direction of one transmit receive point for beam establishment and beam tracking for a second transmit receive point.
Abstract:
Moving communication devices present challenges for conventional antenna beam sweeping techniques. According to embodiments of mobility-aware antenna beam tracking as disclosed herein signaling is communicated between a User Equipment (UE) and a moving communication device in a wireless communication network. The signaling is indicative of a beam trajectory along which an antenna beam, that is associated with the moving communication device, is moving. The moving communication device itself is also moving, along a device trajectory that may or may not be the same as the beam trajectory. The antenna beam is used for subsequent directional communications between the UE and the moving communication device.