Abstract: Systems, methods, apparatuses, and computer program products for user equipment behavior with respect to hybrid automatic repeat request retransmission in new radio sidelink co-existence scenarios with another technology are provided. For example, a method can include enabling, for a receiving user equipment, hybrid automatic repeat request negative acknowledgement only feedback. The method can also include first determining whether to condition negative feedback on at least one first condition, or second determining whether negative feedback is conditioned on at least one second condition. The method can further include third determining whether to retransmit a message according to hybrid automatic repeat request according to results of the first determining or the second determining. The method can additionally include communicating with the receiving user equipment based on a result of the third determining.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of a wake up procedure for a hibernating cell. The method comprises determining whether configuration information for transmitting a wake up signal is received from a second device, the wake up signal used for waking up the second device in a hibernation mode; in accordance with a determination that the configuration information is missed, obtaining one or more reference parameters associated with the wake up signal; and transmitting the wake up signal to the second device based on the one or more reference parameters. In this way, a hibernating network could be waked up and provide service at any time when the UE requires the network service. The requirement for reducing power consumption of 5G site can be realized and meanwhile the service to be provided to the UE is not downgraded.

Abstract: The disclosure relates to an apparatus comprising: means for sending (500) a duplicate sidelink transmission to a user equipment on each carrier of a group of carriers; means for receiving (502) feedback from the user equipment for each carrier; and means for determining (504) a sidelink carrier aggregation capability of the user equipment on the group of carriers based on the feedback.

Abstract: Systems, methods, apparatuses, and computer program products for handling NR slot aggregation in radio SL co-channel coexistence. A method may include determining that one or more slots of a first radio access technology overlaps a subframe of a second radio access technology. The method may also include detecting whether the second radio access technology is using the subframe of the second radio access technology. The method may further include determining by an outcome of at least one evaluated condition whether to transmit in the one or more overlapping slots or refrain to transmit in the one or more overlapping slots. The method may further include performing transmission with a same transmit power in all the slots that overlap the subframe of the second radio access technology.

Abstract: According to an example aspect of the present invention, there is provided an apparatus caused at least to determine a common automatic gain control symbol to be transmitted during a first symbol of a slot, wherein the first symbol of the slot is for a transmission of a first automatic gain control symbol by a transmitting sidelink user equipment and for a transmission of a second automatic gain control symbol by a receiving sidelink user equipment and the apparatus is the transmitting sidelink user equipment, wherein the common automatic gain control symbol comprises the first automatic gain control symbol and the second automatic gain control symbol and transmit the first automatic gain control symbol during the first symbol of the slot.

Abstract: Systems, methods, apparatuses, and computer program products for sidelink transmission interference mitigation in shared carrier scenarios are provided. For example, a method can include receiving, at a user equipment, a configuration of sidelink communication from a network element. The method can also include communicating, by the user equipment, using the sidelink communication based on the received configuration. The configuration can be configured to mitigate interference between the sidelink communication and uplink communication.

Abstract: Methods and apparatus, including computer program products, are provided for timing synchronization of sidelinks. In some example embodiments, there may be provided an apparatus including at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least receive information to enable synchronized operation of a vehicle-to-vehicle sidelink with another user equipment; and configure the vehicle-to-vehicle sidelink. Related systems, methods, and articles of manufacture are also disclosed.

Abstract: The example and non-limiting embodiments relate generally to synchronization and, more particularly, to a sidelink synchronization procedure. Exemplified embodiments are provided that may include determining a new synchronization source by a source user equipment, where the source user equipment is configured to provide synchronization to at least one receiving user equipment with use of a sidelink. The exemplified embodiments may further include transmitting by the source user equipment to the at least one receiving user equipment an indication that the source user equipment will update from a current synchronization source to the new synchronization source. The exemplified embodiments may further include transmitting synchronization signals and control signals from the source user equipment to the at least one receiving user equipment using an updated reference frequency corresponding to use of the new synchronization source by the source user equipment.

Abstract: Methods and apparatus, including computer program products, are provided for timing synchronization of sidelinks. In some example embodiments, there may be provided an apparatus including at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least receive information to enable synchronized operation of a vehicle-to-vehicle sidelink with another user equipment; and configure the vehicle-to-vehicle sidelink. Related systems, methods, and articles of manufacture are also disclosed.

Abstract: A method includes determining a first transmission power for a first transmission from a user equipment and a second transmission power for a second transmission from the user equipment, the first and second transmission at least partially overlapping, the first and second transmission power being selected in dependence on at least one of which one or more channels are being transmitted and information on the at least one or more channels.

Abstract: A method including receiving at a user equipment first power information for transmitting to a first base station, receiving at the user equipment second power information for transmitting to a second base station, causing said user equipment to transmit to said first base station with a first power less than or equal to a first maximum power dependent on said first power information and causing said user equipment to transmit to said second base station with a second power less than or equal to a second maximum power dependent on said second power information, such that said first and second power does not exceed a total power allowed for said user equipment.

Abstract: A method comprising including receiving at a user equipment first power information for transmitting to a first base station, receiving at the user equipment second power information for transmitting to a second base station, causing said user equipment to transmit to said first base station with a first power less than or equal to a first maximum power dependent on said first power information and causing said user equipment to transmit to said second base station with a second power less than or equal to a second maximum power dependent on said second power information, such that said first and second power does not exceed a total power allowed for said user equipment

Abstract: A method includes determining a first transmission power for a first transmission from a user equipment and a second transmission power for a second transmission from the user equipment, the first and second transmission at least partially overlapping, the first and second transmission power being selected in dependence on at least one of which one or more channels are being transmitted and information on the at least one or more channels.

Abstract: The specification and drawings present a new method, apparatus and software related product (e.g., a computer readable memory) for implementing power control for uplink orthogonal and non-orthogonal resources for an uplink channel, e.g. for PUCCH or PUCSH, when CoMP is utilized in a wireless network (e.g., LTE).

Abstract: Systems, methods, apparatuses, and computer program products for controlling sounding reference signal (SRS) transmission are provided. One method includes incorporating into an uplink grant message, by a base station in a communications system, information on whether a last symbol of an uplink subframe is used for physical uplink shared channel (PUSCH), for sounding reference signal (SRS), or is empty. The method may then include transmitting the uplink grant message comprising the information on the last symbol to a user equipment (UE).

Abstract: An apparatus and a method for communication are provided. The apparatus is configured to: communicate with a network via a cell created by a relay node; receive from the relay node information required in reception of backhaul transmission sent by a base station of the network to the relay node, the transmission including at least one data packet designated to the apparatus and in decoding of the at least one data packet; receive a backhaul transmission sent by a base station of the network to the relay node and decode the at least one data packet from the transmission.

Abstract: Systems, methods, apparatuses, and computer program products for controlling sounding reference signal (SRS) transmission are provided. One method includes incorporating into an uplink grant message, by a base station in a communications system, information on whether a last symbol of an uplink subframe is used for physical uplink shared channel (PUSCH), for sounding reference signal (SRS), or is empty. The method may then include transmitting the uplink grant message comprising the information on the last symbol to a user equipment (UE).

Abstract: The specification and drawings present a new method, apparatus and software related product (e.g., a computer readable memory) for implementing power control for uplink orthogonal and non-orthogonal resources for an uplink channel, e.g. for PUCCH or PUCSH, when CoMP is utilized in a wireless network (e.g., LTE).

Abstract: An apparatus and a method for communication are provided. The apparatus is configured to: communicate with a network via a cell created by a relay node; receive from the relay node information required in reception of backhaul transmission sent by a base station of the network to the relay node, the transmission including at least one data packet designated to the apparatus and in decoding of the at least one data packet; receive a backhaul transmission sent by a base station of the network to the relay node and decode the at least one data packet from the transmission.