A backhaul radio is disclosed that operates in multipath propagation environments such as obstructed LOS conditions with uncoordinated interference sources in the same operating band. Such a backhaul radio may use an advanced ARQ protocol, which uses an ACK_MAP, constructed by a combination of implicit and explicit signaling, and performs a combination of proactive and reactive retransmissions.

The described technology is generally directed towards interference avoidance for cellular networks. A controller can estimate intercell interference and provide recommendations of preferred time slots that can be used by cell schedulers to avoid intercell interference. The controller can leverage sporadic traffic of neighboring cells by identifying time slots at which traffic demand likely to result in intercell interference. The controller can then guide schedulers at cells to send data in a manner that mitigates intercell interference.

Methods and apparatuses for inter user equipment (UE) coordination signaling. A method of operating a UE includes determining a first set of first sidelink (SL) resources based on SL sensing and resource exclusion; selecting a first one or more SL resources within the first determined set for reservation, transmitting information about the first one or more SL resources, and receiving inter UE co-ordination information indicating whether a SL resource in the first one or more SL resources has a conflict. The method further includes transmitting on one of the first one or more SL resources, when the one SL resource does not have a conflict; and determining a second set of SL resources based on SL sensing and resource exclusion, and selecting a second one or more SL resources within the second set for transmission and reservation, when all of the first one or more SL resources have a conflict.

Methods and apparatuses for inter user equipment (UE) coordination signaling. A method of operating a UE includes determining a first set of first sidelink (SL) resources based on SL sensing and resource exclusion; selecting a first one or more SL resources within the first determined set for reservation, transmitting information about the first one or more SL resources, and receiving inter UE co-ordination information indicating whether a SL resource in the first one or more SL resources has a conflict. The method further includes transmitting on one of the first one or more SL resources, when the one SL resource does not have a conflict; and determining a second set of SL resources based on SL sensing and resource exclusion, and selecting a second one or more SL resources within the second set for transmission and reservation, when all of the first one or more SL resources have a conflict.

One embodiment of the present invention relates to a method for transmitting, by a terminal, feedback on a signal from another terminal in a wireless communication system. The method for transmitting feedback information comprises the steps of: receiving signals transmitted by a plurality of terminals; and transmitting feedback information on each of at least parts of the received signals, wherein the feedback information is transmitted together with data of the terminal transmitting the feedback information, and the feedback information includes time information that allows the terminals that transmitted each of the parts of signals that are subject to the feedback to recognize that the feedback information is feedback on the signals transmitted by the same terminals. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, the BS or a network.

Systems, methods, apparatuses, and computer program products for using relative uplink transmission delay indexing are provided. For example, a user equipment (UE) and a network node may determine valid uplink transmission occasions for control information and the network node may communicate an indication of a position of a valid uplink transmission occasion to the UE relative to other valid uplink transmission occasions for the control information.

When downlink data allocation is indicated in an ePDCCH, this terminal device can determine PUCCH resources to be used in notification of response signals indicating results of error detection of downlink data without imposing scheduling restrictions on future DL subframes. In this device, an extraction unit receives downlink data on multiple unit bands. A CRC unit detects errors in the downlink data. A response signal generation unit generates a response signal by using the results of error detection of the downlink data obtained by the CRC unit. The control unit arranges the response signal in the PUCCH resources corresponding to the current DL subframe.

According to an embodiment of the present disclosure, a method for performing sidelink communication by a first device is provided. The method comprises the steps of: transmitting at least one PSSCH to at least one reception device by using at least one sub channel and at least one slot in a resource pool; and receiving at least one HARQ feedback for the at least one PSSCH through at least one PSFCH resource from among M PSFCH resources in the resource pool, wherein the resource pool comprises K PSSCH-associated slots and L sub channels, which are associated with the PSFCH resources, M is greater than or equal to K*L, and K, L, and M may be positive integers.

A communications system, a method of operating a communications system, and a method of operating a communications device are provided. The communications system includes a transmitter configured to transmit a data packet to a receiver; and the receiver configured to receive the data packet from the transmitter, wherein the receiver is configured to receive at least one first packet from the transmitter, determine whether there is a first failed packet having an error from among the at least one first packet, transmit a first status report requesting retransmission of the first failed packet, and transmit a second status report requesting retransmission of the first failed packet within a previously determined status report processing period from transmission of the first status report, wherein the first status report comprises first time information corresponding to a transmission time of the first status report from the receiver to the transmitter, and the second status report comprises second time information corresponding to a transmission time of the second status report from the receiver to the transmitter.

This disclosure provides an information transmission method, a terminal and a network side device. The method includes: receiving, from a network side device, feedback information for a first uplink data; determining, according to the feedback information, an identifier of a first hybrid automatic repeat request (HARQ) process corresponding to the first uplink data not successfully received by the network side device; and performing data retransmission according to the identifier of the first HARQ process, where the retransmission data includes the identifier of the first HARQ process.