Abstract: Methods, devices, and systems for the transmission of information in a wireless communication system are disclosed. In one embodiment, a method for the transmission of information in a wireless communication system comprises receiving a downlink message, wherein the downlink message includes a first control channel element; determining a first index using the location of the first control channel element; determining a second index; determining a first orthogonal resource using the first index; determining a second orthogonal resource using the second index; spreading an uplink message using the first orthogonal resource to form a first spread signal; spreading the uplink message using a second orthogonal resource to form a second spread signal; transmitting the first spread signal using a first antenna; and transmitting the second spread signal using a second antenna.

Abstract: A user equipment, base station and method for transmitting semi-persistent channel state information (SP-CSI) on a physical uplink shared channel (PUSCH) are provided. The user equipment includes processing circuitry configured to receive a control signaling message the control signaling message configuring the user equipment with at least one SP CSI report configuration on the PUSCH, and the message identifying a SP CSI reporting periodicity. The user equipment also receives physical layer control signaling identifying and activating the at least one SP CSI report configuration. Transmitter circuitry is configured to transmit a plurality of SP CSI reports, the reports being transmitted with the periodicity and according to the physical layer control signaling and the control signaling message.

Abstract: A wireless device (WD), network node and methods are provided for rate matching using dynamically indicated reference signals in a co-carrier co-existence scenario. According to one aspect, a method in a network node includes determining a physical downlink shared channel (PDSCH) resource element (RE) mapping for a plurality of aperiodic zero power reference signal (ZP-RS) resources. The method also includes transmitting to a first wireless device (WD) configured to operate according to a first radio access technology (RAT), a first indication of first aperiodic ZP-RS resources of the plurality of aperiodic ZP-RS resources to be excluded during a PDSCH RE mapping by the first WD to avoid a conflict with second aperiodic ZP-RS resources indicated to a second WD configured to operate according to a second RAT.

Abstract: A method and system to signal transmission layers or dedicated reference signal ports to be used in a multiple input multiple output system, the method including providing a downlink control signal containing information for transmission layers or dedicated reference signal ports utilized, the dedicated reference signal ports being associated with the transmission layers; and using the information to demodulate data on each transmission layer.

Abstract: Embodiments herein show a method performed by a user equipment for handling communication via a set of serving cells comprising a first serving cell and a second serving cell of a communication network. The user equipment receives a grant on a first serving cell, wherein the grant comprises a first identifier identifying Channel State Information Reference Signal (CSI-RS) resources of the first serving cell. Furthermore, the user equipment calculates a first CSI report for the first serving cell using the CSI-RS resources identified by the first identifier; and calculates a second CSI report for a second serving cell, using CSI-RS resources of the second serving cell identified by a second identifier, the second identifier being received previously in a grant on the second serving cell. The user equipment then transmits the first and second CSI reports to a network node serving the first serving cell.

Abstract: According to some embodiments, a method is performed by a wireless device comprises: receiving a sounding reference signal (SRS) configuration comprising a frequency hopping pattern over a plurality of slots wherein a frequency domain starting position varies per slot; and transmitting SRS according to the received SRS configuration.

Abstract: According to some embodiments, a method performed by a wireless device comprises receiving a sounding reference signal (SRS) configuration for a SRS resource set. The SRS resource set comprises a plurality of SRS resources. The SRS configuration comprises a first periodicity for a first subset of the plurality of SRS resources and a second periodicity for a second subset of the plurality of SRS resources. The method further comprises transmitting the first subset of SRS resources according to the first periodicity and transmitting the second subset of SRS resources according to the second periodicity.

Abstract: A method, network node and wireless device (WD) for collision handling, uplink control channel information (UCI) multiplexing and repetition for transport block (TB) transmission on a multi-slot physical uplink shared channel (PUSCH) are disclosed. According to one aspect, a method in a WD includes configuring a multi-slot physical uplink shared channel (PUSCH) by overlapping a multi-slot PUSCH with at least one of another PUSCH and/or a physical uplink control channel (PUCCH).

Abstract: A method and system for reporting multi-beam channel state information, CSI, in a wireless device are disclosed. According to one aspect, the method includes providing an indication of a plurality of beam index pairs, (lk, mk), in the UCI in a first transmission, each beam index pair corresponding to a beam k. The method also includes providing an indication of at least one of a beam power, a beam rotation and a channel quality index, CQI, in the UCI in a second transmission. The method also includes transmitting at least one of the indication of beam index pairs, beam power, beam rotation and CQI.

Abstract: A method by a wireless device for computing channel state information (CSI) includes obtaining an overlapping N-port CSI-RS resource definition that overlaps with an M-port CSI-RS resource definition. A number N of ports associated with the overlapping N-port CSI-RS resource definition is less than a number M of ports associated with the M-port CSI-RS resource definition. The wireless device calculates N-port CSI based on the overlapping N-port CSI-RS definition and reports the N-port CSI to a network node.

Abstract: A network node, wireless device, base station, user equipment and corresponding methods are provided. The network node includes processing circuitry configured to: select a first set and second set of reference signal resources in a subframe and aggregate the first set and second set of reference signal resources in the subframe to form a code division multiplexing, CDM, aggregation configuration. The first set and second set of reference signal resources in the subframe satisfy a temporal criterion such that any two resource elements in the first set and second set of reference signal resources have up to a maximum time separation of six OFDM symbols. The first set and second set of reference signal resources in the subframe satisfy a frequency criterion such that any two resource elements in the first set and second set of reference signal resources have up to a maximum frequency separation of six subcarriers.

Abstract: Embodiments of the present disclosure provide methods, apparatus and computer program products for transmitting and receiving an uplink signal on physical control channel. A method comprises: determining that a terminal device has a capability of transmitting the uplink signal on physical control channel in at least a first time instant and a second time instant coherently; performing a first transmission of the uplink signal on physical control channel in the first time instant in a first set of subcarriers; and performing a second transmission of the uplink signal on physical control channel in the second time instant in a second set of subcarriers.

Abstract: Systems and methods for timing determination for aperiodic Channel State Information (CSI) on Physical Uplink Control Channel (PUCCH) are provided. In some embodiments, a method performed by a wireless device for reporting channel state information includes one or more of: receiving a downlink related Downlink Control Information (DCI) triggering an aperiodic CSI; determining a timing offset for the aperiodic CSI to be reported on PUCCH; and reporting the aperiodic CSI on PUCCH based on the determined timing offset. In this way, efficient and low overhead signaling of timing offset of aperiodic CSI report is enabled.

Abstract: A method and system to signal transmission layers or dedicated reference signal ports to be used in a multiple input multiple output system, the method including providing a downlink control signal containing information for transmission layers or dedicated reference signal ports utilized, the dedicated reference signal ports being associated with the transmission layers; and using the information to demodulate data on each transmission layer.

Abstract: According to one embodiment, a method at a transmitting device is provided. The method includes transmitting at least two groups of reference signals, wherein a first and a second group of the at least two groups each correspond to transmission on a plurality of antenna ports, the first group corresponds to a smaller number of antenna ports than the second group. The maximum combined power on the antenna ports may correspond to the first and second group is substantially the same. One or more of the antenna ports corresponding to the first group may be formed according to at least one of a first and a second mechanism. User equipment and base station comprising processing circuitry to perform steps of method according to the various embodiments are also provided.

Abstract: A method of a communication device configured with two or more multi-user coordination modes for communication with a plurality of users is disclosed. The method comprises determining an available spatial selectivity for the plurality of users, and selecting one of the two or more multi-user coordination modes based on the determined available spatial selectivity and a number of users of the plurality. Corresponding apparatus, communication receiver and computer program product are also disclosed.

Abstract: Systems and methods for multi-beam Channel State Information (CSI) reporting are provided. In some embodiments, a method of operation of a second node connected to a first node in a wireless communication network for reporting multi-beam CSI includes reporting a rank indicator and a beam count indicator in a first transmission to the first node. The method also includes reporting a cophasing indicator in a second transmission to the first node. The cophasing indicator identifies a selected entry of a codebook of cophasing coefficients where the number of bits in the cophasing indicator is identified by at least one of the beam count indicator and the rank indicator. In this way, feedback for both a rank indicator and a beam count indicator may be possible which may allow robust feedback and variably sized cophasing and beam index indicators.

Abstract: Systems and methods relating to 6-port and/or greater than 8-port Channel State Information Reference Signal (CSI-RS) configurations are disclosed. In some embodiments, a method of operation of a radio access node in a cellular communications network comprises configuring a plurality of CSI-RS ports for a wireless device, where the plurality of CSI-RS ports is six CSI-RS ports, ten CSI-RS ports, twelve CSI-RS ports, fourteen CSI-RS ports, or sixteen CSI-RS ports, depending on the embodiment. The method further comprises transmitting CSI-RS on at least a subset of the plurality of CSI-RS ports configured for the wireless device. In this manner, support for, e.g., an increased number of antenna ports and/or support for two-dimensional (2D) antenna arrays is provided.

Abstract: The present disclosure is related to the field of telecommunication, and in particular, to enhancement for uplink data transmission. A method at a terminal device comprises: receiving, from a network node, a first message indicating at least one parameter for a Physical Uplink Shared Channel (PUSCH) transmission; and transmitting, to the network node, the PUSCH transmission at least partially based on the first message. A method at a network node comprises: transmitting, to a terminal device, a first message indicating at least one parameter for a Physical Uplink Shared Channel (PUSCH) transmission; and receiving, from the terminal device, the PUSCH transmission at least partially based on the first message.

Abstract: According to certain embodiments, a method performed by a wireless device comprises determining a configuration for sounding reference signal (SRS) transmission. The configuration is determined at least in part based on information received from a network node. The method further comprises performing the SRS transmission according to the configuration.