Abstract:
Technology for an eNodeB operable to control communications at a relay user equipment (UE) is disclosed. The eNodeB can select the relay UE to relay proximity services (ProSe) traffic between the eNodeB and a remote UE based on one or more relay quality indicators associated with the relay UE. The eNodeB can communicate, to the relay UE, control signaling to configure one or more orthogonal timelines to cause the relay UE to resolve ProSe communications between the relay UE and the remote UE that conflict with uplink hybrid automatic repeat request (HARQ) acknowledgement (ACK) or negative acknowledgement (NACK) transmissions from the relay UE to the eNodeB.
Abstract:
Technology is discussed to allow transmission points within a Wireless Wide Area Network (WWAN) to adapt to Up Link (UL) and Down Link (DL) traffic demands independently. To mitigate potential interference arising from transmission points scheduled for conflicting UL and DL transmissions, measurements between transmission points can be made to indicate a level of coupling. Based on the various levels of coupling between transmission points, clusters can be formed. Where a high level of coupling is present, transmission points can be included in a common cluster. Where a low level of coupling is present, they can be isolated. Transmission points within the same cluster are scheduled with a common pattern of UL and DL transmissions to avoid interference. Transmission points in different clusters can have different patterns of UL and DL transmission to independently adapt to the relative demands for UL and DL transmissions experienced within these different clusters.
Abstract:
An apparatus and method for managing interference to facilitate allocation of a dynamic uplink and downlink configuration are disclosed herein. Determining whether a first cell causes interference less than a pre-determined threshold level to one or more neighboring cells or whether flexible subframes of radio frames associated with the one or more neighboring cells operate as downlink subframes. In response to the determining condition being met, allocating a first flexible subframe of a first radio frame associated with the first cell to operate as a downlink subframe at normal transmit power level. In response to the determining condition not being met, allocating the first flexible subframe of the first radio frame associated with the first cell as one of a downlink subframe operating in a reduced transmit power level or as an uplink subframe.
Abstract:
The position of User Equipment (UE) may be determined based on information communicated through direct UE-to-UE communications to obtain additional measurements of position metrics that can be used to determine relative or absolute positions of the UE. In one implementation, a UE may receive, via a direct connection with a second UE, a positioning reference signal from which timing information, relating to distance between the UE and second UE, is derivable; determine, based on the positioning reference signal, a first position metric that relates to a position of the UE with respect to the second UE; and determine, based at least on position metric, a location of the UE.
Abstract:
Technology for traffic offloading to generate a low interference flexible subframe (FlexSF) of an adaptive uplink-downlink (UL-DL) time-division duplexing (TDD) subframe configuration in a heterogeneous network (HetNet) is disclosed. One method can include an evolved Node B (eNB) monitoring a traffic loading metric for a specified traffic loading condition. The eNB can offload traffic scheduled for a packet of a macro user equipment (UE) from a macro cell to a FlexSF of a UL-DL subframe configuration of a small cell when the specified traffic loading condition exists. The eNB can be a macro eNB of the macro cell or a small eNB of the small cell.
Abstract:
An apparatus and method of allowing user equipment to transmit information directly with other user equipment, using a device-to-device mode is disclosed herein. A device-to-device blank subregion is defined where device-to-device information can be transmitted without interference from other user equipment. The device-to-device blank subregion may be set up such that it is only used in an exclusive mode if a device-to-device cluster is considered highly interfering. A device may join a device-to-device network through the use of a beacon transmission interval, a control transmission interval, and a data transmission interval.
Abstract:
Embodiments disclosed herein are directed to new mechanisms of resource allocation for transmission of positioning or ranging (e.g., sounding) reference signals. The embodiments may provide flexible and/or efficient resource allocation, and may improve accuracy of user positioning. The techniques described herein may be applied for multiple use cases, including UAS, V2X, IIoT, etc.
Abstract:
A computer-readable storage medium stores instructions to configure a UE for sidelink operation in a 5G NR network, and to cause the UE to perform operations including decoding a first sidelink transmission received from a second UE. The first sidelink transmission includes a first resource reservation for a subsequent sidelink transmission by the second UE. A second sidelink transmission received from a third UE is decoded. The second sidelink transmission includes a second resource reservation for a subsequent sidelink transmission by the third UE. A co-channel collision is detected based on the first resource reservation and the second resource reservation being in a same sidelink slot. A feedback message is encoded for transmission to the second UE and the third UE. The feedback message indicates the co-channel collision.
Abstract:
An apparatus for use in a UE includes processing circuitry coupled to a memory. To configure the UE for 5G-NR sidelink communications, the processing circuitry is to decode SCI received from a second UE via a PSCCH, the SCI indicating a sidelink resource for transmission of a transport block during multiple transmission time intervals, and a PSFCH indicator. A PSSCH is decoded to obtain the transport block, the PSSCH received in one of the multiple transmission time intervals using frequency resource assignment and time resource assignment of the sidelink resource. HARQ feedback information for the decoded PSSCH is encoded for transmission to the second UE using a PSFCH associated with the sidelink resource, based on the PSFCH indicator and a time gap configured by higher layer signaling.
Abstract:
Devices and systems of sensing, resource selection and control signaling for feedback-less and feedback-based NR-V2X sidelink communication are described. Resource reservation and selection for sidelink retransmissions based on HARQ feedback are described for unicast, groupcast, and broadcast blind retransmissions. After exchanging HARQ feedback capability information for different types of communications, a HARQ-dependent or HARQ-independent resource selection occurs. Look-ahead and/or chain-based resource selection and reservation signaling is used, in which a single resource or some or all of the resources selected are signaled as reserved. Further resource selection of a single additional resource may occur after an initial resource selection. The resource selection for retransmissions may be adapted using a RSRP or distance threshold.