摘要:
Embodiments of a User Equipment (UE) and methods for packet based device-to-device (D2D) discovery in an LTE network are generally described herein. In some embodiments, UE may be enabled for proximity services and may be configured to receive signaling from an enhanced node B (eNB) indicating resources allocated for D2D discovery. The UE may configure a discovery packet in accordance with a predetermined configuration to have at least a discovery payload and a cyclic-redundancy check (CRC). The discovery payload may include discovery-related content. The UE may be configured to transmit the discovery packet on at least some of the indicated resources for receipt by a receiving UE. In some embodiments, a demodulation reference signal (DMRS) may be selected to indicate a payload size and/or MCS of the discovery packet's payload.
摘要:
A user equipment (UE) includes a reference signal component, a guard period component, and a transmission component. The reference signal component is configured to randomly select a sequence for a reference signal for transmission in an open device-to-device discovery packet. The guard period component is configured to determine a first symbol signal for transmission during a first symbol of the device-to-device discovery packet. The first symbol comprises a partially punctured symbol. The transmission component is configured to transmit the device-to-device discovery packet. The device-to-device discovery packet includes the first symbol having the partially punctured symbol and a reference signal based on the randomly selected sequence.
摘要:
Technology is discussed for self-optimization approaches within wireless networks to optimize networks for energy efficiency, load capacity, and/or mobility, together with new, supporting channel state measurements and handover techniques. New, Channel State Information-Reference Signals (CSI-RSs) for yet-to-be-configured Cell-IDentifications (Cell-IDs) can be used to determine whether adjacent transmission cells can provide coverage for transmission cells that can be switched off for energy efficiency during formation of a Single Frequency Network (SFN). New approaches are also discussed to facilitate mobility within such a network. The new CSI-RSs and mobility approaches can also be used to split up such a SFN when changing load demands so require. Additionally, such new approaches can be used to create a SFN with a common Cell-ID where high mobility is required, such as near a roadway, and to break it up where high capacity is required, such as during a period of traffic congestion.
摘要:
An eNodeB (eNB), user equipment (UE) and method for operating using a reduced data transmission bandwidth are generally described. The UE may receive downlink control information (DCI) that provides a resource allocation (RA) of a reduced physical resource block (PRBmin) of less than 1 PRB for communications in a PRB of a subframe. Whether the RA is localized or distributed may be predefined, configured via system information block or Radio Resource Control signaling, or indicated in the DCI format. The DCI format may specify the resources within the PRB allocated to the UE through a subcarrier block index and total number of subcarrier blocks or a bitmap corresponding to a unique block of subcarriers or block index. An order in a list of cell Radio Network Temporary Identifiers (RNTIs) may be used with a common RNTI to derive the reduced RA from a 1 PRB RA.
摘要:
Examples may include techniques to enable user equipment (UE) to establish a device-to-device (D2D) communication link for D2D communications with another UE. In some examples, the D2D communications may occur when either both or at least one UE is within a coverage area for a wireless wide area network (WWAN). In some other examples, both UEs may be outside of the coverage area and may utilize a third UE to provide or relay information for use to establish the D2D communication link.
摘要:
Embodiments of a machine-type communication (MTC) User Equipment (UE) and methods for configuring a MTC UE using an evolved Node B (eNB) are generally described herein. A method for configuring a UE for communication performed by circuitry of an evolved Node B (eNB) may include broadcasting, from the eNB, a physical downlink control channel (PDCCH) transmission on a licensed band, transmitting, from the eNB to the UE, a physical broadcast channel (PBCH) transmission multiplexed with a machine-type communication (MTC) PBCH (M-PBCH) transmission, the M-PBCH transmission including a MTC master information block (M-MIB) in a MTC region of the licensed band, wherein the MTC region includes a subset of frequencies of the licensed band, and transmitting, from the eNB to the UE, a first data transmission on the MTC region in a downlink.
摘要:
An eNodeB (eNB), user equipment (UE) and method for operating in enhanced coverage (EC) modes are generally described. The UE may receive one or more physical broadcast channel (PBCH) signals, dependent on whether the UE is in a normal coverage mode or in one of the EC modes. The PBCH signal may be combined to form a combined PBCH signal, when the UE is in an EC mode, and decoded to determine one of a plurality of sets of resource regions associated different EC modes for communication with the eNB. The signal may be scrambled using a Radio Network Temporary Identifier (RNTI) dependent on at least one of a signal type of the control signal and the EC mode. Paging and the system information block (SIB) signals in a Physical Downlink Shared Channel (PDSCH) may be decoded without decoding a physical downlink control channel (PDCCH) signal associated with the PDSCH.
摘要:
Embodiments of an enhanced node B (eNB), user equipment (UE) and methods of signaling for proximity services and device-to-device (D2D) discovery in an LTE network are generally described herein. In some embodiments, the eNB may transmit signaling to indicate D2D discovery zone configuration to proximity service (ProSe) enabled UEs. The signaling may indicate time and frequency resources and a periodicity of a discovery zone and may indicate operational parameters for the discovery zone. The resources of the D2D discovery zone may be allocated for D2D discovery signal transmission by the ProSe-enabled UEs.
摘要:
In one embodiment, the present disclosure provides an evolved Node B (eNB) that includes a device-to-device (D2D) module configured to allocate at least one D2D discovery region including at least one periodic discovery zone, the at least one periodic discovery zone including a first plurality of resource blocks in frequency and a second plurality of subframes in time, the D2D module further configured to configure a User Equipment (UE) to utilize the at least one D2D discovery region for transmitting a discovery packet.
摘要:
Technology for a user equipment (UE) to communicate in a device to device (D2D) network is described. A temporary identification (Temp ID) can be received from an enhanced node B (eNB). A D2D discovery resource allocation can be received within a physical uplink channel from the eNB. A UE D2D discovery resource can be selected from the D2D discovery resource allocation based on the Temp ID. A D2D discovery beacon can be transmitted from the UE D2D discovery resource to enable other UEs to detect the UE.