Abstract: There is provided mechanisms for encoding an information sequence into an encoded sequence. A method is performed by an information encoder. The method comprises obtaining the information sequence. The method comprises inserting at least one checkpoint sequence in the information sequence. The method comprises encoding the information sequence comprising the at least one checkpoint sequence into the encoded sequence using a polar code. There is also provided a method for decoding such an encoded sequence.

Abstract: A network node, a User Equipment, UE and methods therein, for handling a message transmitted over a radio link. The network node generates a first set of identity check bits for a first part of the message, based on the message and a first check identity, and further generates a second set of identity check bits valid for a second part of the message, based on the message, the first set of identity check bits and a second check identity. The message is then transmitted over the radio link with the first and second sets of identity check bits attached. The UE performs a first verification check using the second set of identity check bits and the second check identity, and performs a second verification check using the first set of identity check bits and the first check identity. The UE then handles the second message part based on the first verification check and the first message part based on the second verification check.

Abstract: A cellular network supports radio communication based on a first configuration which organizes a time-frequency space in first resource elements and radio communication based on a second configuration which organizes the time-frequency space in second resource elements and assigns at least one of the second resource elements to a utilization which is in conflict with the radio communication based on the first configuration. A node of the cellular network sends an indication to a communication device. The indication comprises time domain and/or frequency domain information for defining a pattern comprising at least one of the first resource elements which is to be disregarded by the communication device when performing radio communication with the cellular network based on the first configuration and/or the second configuration.

Abstract: Embodiments herein relate to a method performed by wireless device for applying a Channel State Information, CSI, filtering in a wireless communication network. The wireless device determines a recommended CSI filtering based on measurements of one or more received reference signals from a radio network node. The wireless device transmits, to the radio network node, a first indication of the determined recommended CSI filtering. The wireless device receives, from the radio network node or another radio network node, a first configuration of CSI filtering; and uses the received first configuration for applying CSI filtering.

Abstract: To provide a more efficient approach to mobility measurement in a radio access network there is provided a method of performing a mobility measurement in a wireless device operating in a radio access network. There is received (S10) a mobility measurement resource assignment identifying one or more demodulation and mobility reference signals of a pre-determined set of demodulation and mobility reference signals. The mobility measurement resource assignment is demodulated (S14) using the one or more demodulation and mobility reference signals of the predetermined set of demodulation and mobility reference signals. Also, there are determined (S14) one or more mobility measurement quality values from the identified one or more demodulation and mobility reference signals.

Abstract: Methods and systems for partial retransmission are provided. According to one aspect, a method for receiving, at a receiver, a partial retransmission from a sender, comprises: receiving a control information message indicating a second transmission to be received, the second transmission comprising retransmitted data, the retransmitted data comprising a retransmission of a portion of a first transmission; receiving the second transmission; determining, based on a mapping indicator, a location of the retransmitted data within the second transmission; and decoding the retransmitted data at the determined location within the second transmission. The mapping indicator may be received as part of the control information message or may be received separately from the control information message. In one embodiment, the combination of the control information and the mapping indicator indicates what portions of the first transmission are being retransmitted and where they are located within the second transmission.

Abstract: Method by a communication device (120) for managing beam coverage. The device receives and evaluates (201) first reference signals transmitted by a network node. The first reference signals are comprised in first beams. The first beams are static or semi-static. The receiving and evaluating is according to a first state, wherein the device refrains from reporting back about the first reference signals. In response to the conclusion that all of the first reference signals are too weak and/or of too low quality by comparison to a threshold, the device sends (202) a request to one or more network nodes (110, 111), requesting a certain procedure for providing, by beamforming, one or more second beams (127, 128) specifically to target the device. The second beams (127, 128) comprise one or more second reference signals. The device switches, to a second state. wherein the device actively participates in the provision of beam coverage and is in a battery-saving mode.

Abstract: A receiver apparatus receives a terminal-specific demodulation reference signal having a rank k and estimates an effective multi-layer channel response, using the received terminal-specific demodulation reference signal. The receiver demodulates first data symbols from first time-frequency resource elements, using the estimate of the effective multi-layer channel response and using a first symbols-to-virtual-antenna mapping matrix M to obtain nc modulation symbols from each of the first time-frequency resource elements, wherein nc>1 and wherein the first symbol-to-transmit-layer mapping matrix M has dimensions k by nc. The first data symbols are decoded to obtain downlink control information assigning second time-frequency resource elements to the receiver.

Abstract: Techniques disclosed herein involve network-side and device-side operations that provide for the advantageous use of a reduced set of precoders within a larger full set of precoders. The reduced set is identified dynamically, based on characteristics of the channel between a radio network node and a wireless device, and the use of a defined mapping function that maps the reduced set of precoders within the larger full set to a reduced set of index values. Reporting precoders from the reduced set offers significant reductions in signaling overhead because of the smaller size of the index values used to index the reduced set, while simultaneously offering the ability to choose from precoders matched to current channel conditions.

Abstract: A method and a first radio node (200 or 202), for communicating data with a second radio node in a wireless network using precoders. The first radio node (200 or 202) communicates (2:1) with the second radio node (202 or 200) a first data transmission using a first set of precoders (S1), and communicates (2:4) with the second radio node (202 or 200) a precoder indicator which is based on quality of the communicated first data transmission. The first radio node (200 or 202) identifies (2:5) a second set of precoders (S2) within the first set (S1) based on the communicated precoder indicator, and communicates (2:6) with the second radio node (202 or 200) a second data transmission using the second set of precoders.

Abstract: Method for facilitating communication of control information. A message (200) is defined to communicate control information. The message (200) comprises a sequence of bits (201). A first mapping (202) defines how to interpret the message (200), defining which bits comprise a value of a first set of values (203), and for which variable in a first set of control information variables (204). The first communication device communication device (101) obtains (301) an update on how to interpret the message (200). The update is based on a second mapping (401). The second mapping (401) defines which bits in the sequence comprise a value of the second set of values (402), and for which variable. The first communication device (101) initiates (302) sending of an indicator of said update to a second communication device (102). The message (200) is devoid of the indicator or an indication of any of the first and second mapping (401).

Abstract: A node (100) of a wireless communication network receives a synchronization signal from a radio device (10). Based on the received synchronization signal, the node determines a time alignment configuration for uplink radio transmissions from the radio device to the wireless communication network. Based on the received synchronization signal, the node further determines Hybrid Automatic Repeat Request feedback information for at least one downlink radio transmission from the wireless communication network to the radio device (10). The node (100) indicates the determined time alignment configuration to the radio device (10). Based on the determined Hybrid Automatic Repeat Request feedback information, the node controls retransmission of the at least one downlink radio transmission.

Abstract: Systems and methods of determining a transmitter or receiver configuration in a wireless communication system are provided. In one exemplary embodiment, a method performed by a radio node (101, 111, 200, 300a-b, 500, 700a-b) in a wireless communication system (100) comprises determining (405) a first transmitter or receiver configuration for transmission or reception in a first frequency spectrum (121) having a first sub-carrier spacing (123) based on a channel information measurement in a second frequency spectrum (131) having a second sub-carrier spacing (133), wherein the first (123) and second (133) sub-carrier spacings are different and the first (121) and second (131) frequency spectrums overlap.

Abstract: A network node, a User Equipment, UE and methods therein, for handling a message transmitted over a radio link. The network node generates a first set of identity check bits for a first part of the message, based on the message and a first check identity, and further generates a second set of identity check bits valid for a second part of the message, based on the message, the first set of identity check bits and a second check identity. The message is then transmitted over the radio link with the first and second sets of identity check bits attached. The UE performs a first verification check using the second set of identity check bits and the second check identity, and performs a second verification check using the first set of identity check bits and the first check identity. The UE then handles the second message part based on the first verification check and the first message part based on the second verification check.

Abstract: Culling a set of precoders down to a smaller set using a comparatively simple first-pass evaluation allows a wireless device or other entity to reduce an overall computational burden associated with identifying a currently preferred precoder. An example approach involves selecting a reduced set of precoders from a full set of precoders, based on performing preliminary evaluations of precoders in the full set, and selecting a preferred precoder or precoders from the reduced set, based on performing further evaluations of precoders in the second set. On a per precoder basis, the further evaluations are more complex than the preliminary evaluations. One may view the approach as using less complex first-pass evaluations to reduce the precoder search space, and then using more complex second-pass evaluations to identify a currently preferred precoder or precoders within the reduced search space.

Abstract: Techniques disclosed herein involve network-side and device-side operations that provide for the advantageous use of a reduced set of precoders within a larger full set of precoders. The reduced set is identified dynamically, based on characteristics of the channel between a radio network node and a wireless device, and the use of a defined mapping function that maps the reduced set of precoders within the larger full set to a reduced set of index values. Reporting precoders from the reduced set offers significant reductions in signaling overhead because of the smaller size of the index values used to index the reduced set, while simultaneously offering the ability to choose from precoders matched to current channel conditions.

Abstract: A method of scheduling uplink resources, comprising: a radio-access network node transmitting art uplink indication, said uplink indication determining a validity duration of an uplink grant.

Abstract: A technique for signaling downlink control information from a base station (106) to a user equipment (104) is described. As to a method aspect of the technique, a first control element including first DCI (702) is sent to the user equipment (104). The first DCI (702) includes values specifying a set (710) of transmission parameters. A second control element including second DCI (704) is sent to the UE (104). The second DCI (704) includes values specifying a subset (712) of the set (710). The base station (106) and the user equipment (104) communicate according to the set (710) of transmission parameters, wherein the values included in the first DCI (702) specify the transmission parameters (714) not in the subset (712), and wherein the values included in the second DCI (704) specify the transmission parameters in the subset (712).

Abstract: A method for power control in a wireless network is performed in a first node in the wireless network and comprises the steps of: estimating a received power spectral density from a second node in the wireless network; determining a target received power spectral density from a third node in the wireless network, in dependence of the estimated received power spectral density; and sending power control information to the third node in dependence on the determined target received power spectral density.

Abstract: A wireless device and a method therein for transmitting one or more Hybrid Automatic Repeat request (HARQ) feedbacks to a network node. The wireless device has a set of HARQ feedback available for transmission. Further, the wireless device and the network node are operating in a wireless communications system. The wireless device obtains a HARQ feedback prioritization indication indicating a priority order of HARQ feedback. Further, the wireless device transmit, to the network node, one or more HARQ feedback in accordance with the indicated priority order, wherein the one or more HARQ feedback are comprised in a proper subset of the set of HARQ feedback.