Abstract: A network node (110) and a method for downlink pilot signal assignment and transmission, and for data transmission. The network node has a plurality of antenna elements distributed over an area. The network node determines a respective Channel State Information (CSI) and/or a respective channel hardening degree for a wireless device (120) based on an uplink pilot signal. Possibly, the network node determines a mobility condition for the wireless device. Based on one or more out of: the determined respective CSI, the determined respective channel hardening degree and the determined respective mobility condition, the network node obtains a pilot utility metric for the wireless device. Further, the network node assigns a downlink pilot signal to at least one wireless device having a pilot utility metric exceeding a predetermined threshold value. Furthermore, the network node transmits, to the at least one wireless device, data and possibly an assigned downlink pilot signal.

Abstract: In one embodiment, a method in a user equipment (UE) includes receiving broadcasted system information from a network node. The broadcasted system information may include explicit configuration information for a communications channel. The method further includes determining a configuration of the communications channel based, at least in part, on the explicit configuration information. The explicit configuration information may be used by the user equipment to override default channel configuration information. The method may further include receiving data over the communications channel.

Abstract: Systems and methods for transmitting and receiving other broadcast information, OBI, are disclosed. In some embodiments, a method of operation of wireless communication device for a wireless communication system comprises receiving and decoding a transmission unit in which OBI is collocated with at least a portion of a Synchronization Signal Block (SSB). The SSB comprises a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH). The OBI comprises paging messages, remaining minimum system information (RMSI), and/or random access response (RAR) messages. In some embodiments, the transmission unit is a transmission unit having a duration that is two or more symbols but less than a duration of a full slot. In this manner, resources of the wireless communication system are efficiently utilized, which results in higher link and system capacity as well as lower network power consumption from increased stand-by times.

Abstract: A method (200) of transmitting a block of data in a distributed MIMO system is disclosed. The distributed MIMO system comprises a plurality of access points (A1, . . . , AK), wherein access points (Aj) are grouped into a first set of M groups and a second set of M groups, different from the first set, wherein M is an integer. A first antenna port mapping assigns each group of the first set to a unique one of M antenna ports. A second antenna port mapping assigns each group of the second set to a unique one of M antenna ports. The method comprises transmitting (220) the block of data using both the first and the second antenna port mapping.

Abstract: A method is disclosed for a centralized unit (CU) of a wireless communication network, wherein the CU is associated with each of one or more remote units (RU) of the winless communication network via a respective communication interface. The CU is adapted to operate in one of a plurality of modes including at least a normal operation mode and a power saving operation mode, and the normal operation mode defines a plurality of functions to he performed by the CU. The method comprises (when the CU is in the normal operation mode) determining that a traffic load associated with the one or more RU fulfills a power saving operation criterion, configuring—via the respective communication interface—each of the RU for autonomous operation, whereby each of the RC is configured to execute at least one of the plurality of functions, and transferring from the normal operation mode to the power saving operation mode.

Abstract: Described herein are methods and apparatus for receiving notifications at a wireless device from a base station of upcoming system information (SI) updates. The wireless device is communicating with the base station using a contiguous subset of physical resources on a first carrier. A method in a wireless device comprises obtaining an indication of a subset of a plurality of paging occasions in a SI modification period that the wireless device is configured to monitor, wherein responsive to an upcoming update of SI the base station is configured to transmit a notification on each of the plurality of paging occasions in the SI modification period; and monitoring the subset of the plurality of paging occasions for notifications of upcoming SI updates.

Abstract: The present disclosure introduces a method implemented at a user equipment. The method includes: determining, within a physical downlink control channel, one or more bits of a downlink control information that indicates a corresponding physical downlink shared channel carrying a remaining minimum system information or other system information. A user equipment and a corresponding network node are also introduced.

Abstract: The invention refers to a method for controlling sleep operation of a radio network node (12) that supports multiple sleep modes, the method comprising determining (110) which one or more of the supported sleep modes, if any, would prevent the radio network node (12) from being able to meet requirements on a quality of service, such as a maximum allowable data latency, to be provided by the radio network node (12); and preventing (120) the radio network node (12) from operating in any of the determined sleep modes; the invention further refers to a corresponding network node and a computer program.

Abstract: According to embodiments described herein there is provided methods and apparatus for receiving notifications at a wireless device from a base station of upcoming system information (SI) updates. The wireless device is communicating with the base station using a contiguous subset of physical resources on a first carrier. A method in a wireless device comprises obtaining an indication of a subset of a plurality of paging occasions in a SI modification period that the wireless device is configured to monitor, wherein responsive to an upcoming update of SI the base station is configured to transmit a notification on each of the plurality of paging occasions in the SI modification period; and monitoring the subset of the plurality of paging occasions for notifications of upcoming SI updates.

Abstract: According to some embodiments, a method for use in a network node comprises: determining a quasi-colocation (QCL) status between a reference signal (e.g., initial access signal such as system synchronization block (SSB), or a tracking reference signal (TRS)) and a control signal (e.g., a paging signal, a random access response (RAR), or a channel such as physical downlink control channel (PDCCH) or physical downlink shared channel (PDSCH)); and signaling the QCL status to a wireless device. A method for use in a wireless device may comprise: receiving a QCL status between a reference signal and a control signal; receiving the reference signal; estimating one or more signal parameters based on the received reference signal; and when the reference signal and the control signal are QCL, receiving the control signal using the estimated signal parameters to optimize reception of the control signal.

Abstract: Embodiments herein relate to a method performed by a network node (13) for handling communication of a wireless device (10) in a wireless communication network (1). The network node (13), such as an MME, pages the wireless device (10) using a first paging channel; and pages the wireless device (10) using a second paging channel, wherein paging the wireless device (10) using the first paging channel comprises selecting one or more radio network nodes to page the wireless device (10) using the first paging channel based on information relating to current knowledge of a location of the wireless device (10).

Abstract: The invention relates to bandwidth signalling in a multicarrier wireless telecommunication system. The information is transferred in the band itself (bold carriers) and contains information of the size and location of the band (I). The information is repeated in a number of carriers (bold) throughout the band.

Abstract: There is provided mechanisms for providing location information in a communications network. A method is performed by a first device. The first device supports positioning of other devices in the communications network. The method comprises acquiring positioning reference signal configuration from a radio network node in the communications network. The method comprises acquiring location information from a local positioning entity. The method comprises providing the location information to at least one of a radio network node and a second device in the communications network. The method comprises transmitting a positioning reference signal according to the positioning reference signal configuration.

Abstract: A method, in a base station, for transmitting first control channel information to a first wireless device and second control channel information to a second wireless device in a wireless communications network. The method comprises obtaining an indication of whether a spatial relationship between the first wireless device and the second wireless device meets a predetermined condition and operating in one of a first mode and a second mode based on the indication. Operating in the first mode comprises transmitting the first control channel information and the second control channel information using common radio resources; and operating in the second mode comprises transmitting the first control channel information to the first wireless device and the second control channel information to the second wireless device using orthogonal radio resources. Methods and apparatus for obtaining control channel information in a first wireless device are also disclosed.

Abstract: A method is disclosed for a centralized unit (CU) of a wireless communication network, wherein the CU is associated with each of one or more remote units (RU) of the wireless communication network via a respective communication interface. The CU is adapted to operate in one of a plurality of modes including at least a normal operation mode and a power saving operation mode, and the normal operation mode defines a plurality of functions to be performed by the CU. The method comprises (when the CU is in the normal operation mode) determining that a traffic load associated with the one or more RU fulfills a power saving operation criterion, configuring—via the respective communication interface—each of the RU for autonomous operation, whereby each of the RU is configured to execute at least one of the plurality of functions, and transferring from the normal operation mode to the power saving operation mode.

Abstract: A method, network device and terminal device for providing remaining minimum system information (RMSI) in a wireless network. A method comprises determining whether a SS/PBCH block in the SS burst set configures the RMSI. In response to that the SS/PBCH block configures the RMSI, transmitting one or more repeated RMSI within a first periodicity.

Abstract: A network node determines a first transmission parameter for transmission of downlink control channel scheduling the downlink control information provided to a wireless device in a first signal, and selects either the first transmission parameter or one or more different second transmission parameters for transmission of the downlink control channel scheduling for the downlink control information provided to the wireless device in one or more second signals. To allow flexibility and efficient use of resources, the first signal sent by the base station indicates the one or more second transmission parameters as well as the selected transmission parameter(s) for the second signals. In one exemplary embodiment, the first and second transmission parameters comprise first and second control resource set (CORESET) configurations. In another exemplary embodiment, the first and second transmission parameters comprise first and second search spaces.

Abstract: A method in a network node (115) comprises determining (208, 304) to page one or more user equipments (UEs) (115). The method comprises transmitting (214, 308) a paging indicator associated with the one or more UEs. The method comprises receiving (218, 312), in response to the transmitted paging indicator, a predefined uplink signal from at least one of the one or more UEs. The method comprises sending (220, 316), in response to the received predefined uplink signal, a downlink message for initiating an exchange and verification of one or more paging identities, wherein each of the one or more paging identities is uniquely associated with one of the one or more UEs.

Abstract: A technique for updating a list of neighbor relations between cells (100, 312, 502, 504, 512, 514) of a radio access network, RAN, (304) is described. The cells (100, 312, 502, 504, 512, 514) of the RAN (304) comprise first cells (100, 502, 504) configured to provide radio access according to a first radio access technology, RAT, and second cells (512, 514) configured to provide radio access according to a second RAT that is different from the first RAT. As to a method aspect of the technique, each of at least two of the second cells (512, 514) of the RAN (304) is initiated to transmit a measurement signal to a radio device (310; 1391; 1392; 1430) that is served by one or more cells (100; 312) of the RAN (304) other than the at least two second cells (512, 514) of the RAN (304). A confirmation report indicative of a reception of the measurement signal at the radio device (310; 1391; 1392; 1430) is received from one second cell (512) among the at least two second cells (512, 514).

Abstract: The invention relates to a method in a base station of a communication system 1 for making a handover decision, the communication system 1 comprising a user equipment. The method comprises the steps of: performing a first type of mobility mechanism for the user equipment, and upon the first type of mobility mechanism fulfilling a criterion: configuring a second type of mobility mechanism for the user equipment, and making a handover decision for the user equipment based on the second type of mobility mechanism. The invention also relates to a base station, computer programs and computer program products.