Abstract: A wireless communication device includes a wireless interface for conducting wireless communications with a network access node of a wireless network, the wireless interface having uplink and downlink beam forming capabilities. The wireless communication device further includes a control circuit configured to detect a predetermined condition and, in response to the detection, temporarily operate the wireless interface without beam correspondence between uplink and downlink operations; and transmit a message to the network access node that beam correspondence is not used by the wireless communication device.

Abstract: A radio communication terminal (UE2) configured to act as a radar receiver, comprising: —a radio transceiver (323), —logic (320) configured to communicate data, via the radio transceiver, on a radio channel (101), wherein the logic is further configured to obtain (233), via the radio transceiver, a radar probing request (230) to detect radio signal echoes; determine (235) a receive direction (Dir2) based on the request; control the radio transceiver to detect (242) a receive property of the radio signal echoes in said direction; and transmit (261), via the radio transceiver, data (260) associated with the detected receive property to a radio communication device (BS1, UE1).

Abstract: Systems and methods for selecting a communication mode in a wireless network (10) include a communication mode selection procedure that may be carried out by the respective devices in an automated manner to identify a mode for communication between an electronic device (14) and a network node (12). The selection may be between P-MIMO Mode A, P-MIMO Mode B, B-MIMO Mode A, or B-MIMO Mode B. Determining the desired mode for communication is based on the ability and/or desirability of the network node (12) to efficiently process a maximum threshold number of electronic devices using the P-Mimo Mode A or B-MIMO Mode A and, thereafter, granting MIMO Mode B communication access to any subsequent electronic devices joining the communication network. Communication mode selection may occur dynamically based on changing channel conditions caused by mobility of the electronic user equipment devices and what overlapping and/or non-overlapping beams are needed to be used.

Abstract: The present disclosure provides a method, performed at a network node, for beam control signalling. The network node is configured to communicate with a wireless device comprising one or more physical antenna panels. Each physical antenna panel is configured to communicate with the network node using one or more panels. The method comprises receiving, from the wireless device, control signalling indicative of an association of the one or more panels with one or more corresponding physical antenna panels. The method comprises selecting, based on the association, one or more beams to be used by the wireless device in communication with the network node.

Abstract: A method of operating a wireless communication device (102) includes generating (1001) a reference signal sequence (150) based on a base signal sequence and a shift signal sequence selected from a plurality of candidate shift signal sequences transmitting (1002) the reference signal sequence (150) via an antenna port (5031-5033) of a plurality of antenna ports (5031-5033) of the wireless communication device (102) and via an antenna panel (5023, 5024) of a plurality of antenna panels (5023, 5024) of the wireless communication device (102). The shift signal sequence is selected from the plurality of candidate shift signal sequences depending on the antenna panel (5023, 5024) used for transmitting the reference signal sequence (150).

Abstract: A method performed in a wireless device is disclosed. The present disclosure provides a method, performed in a wireless device, for polarization reporting. The wireless device is configured to communicate with a network node using a plurality of antenna panels of the wireless device, including a first antenna panel. The method comprises generating, based on one or more polarization properties of the first antenna panel, a first polarization indicator associated with a first identifier. The first identifier is indicative of the first antenna panel. The method comprises transmitting a capability report to the network node, the capability report comprising the first polarization indicator associated with the first identifier.

Abstract: A method of operating a wireless communication device (102) in a wireless communication system (100) comprises transmitting a control signal to a node (102) of the wireless communication system (100). The control signal is indicative of a mapping between at least one antenna port (5031-5033) and at least one antenna panel (5023, 5024) of the wireless communication device (102).

Abstract: The present disclosure comprises a method performed by a wireless device, wherein the wireless device is configured to communicate, using a set of beams, with a network node of a wireless communication system. The method comprises receiving, on one or more receive beams, one or more downlink, DL, signals from the network node. The method comprises determining one or more DL measurement parameters based on the received one or more DL signals. The method comprises determining whether the one or more DL measurement parameters satisfy a criterion. The method comprises, when it is determined that at least one of the one or more DL measurement parameters does not satisfy a criterion, indicating to the network node a beam reciprocity parameter, wherein the beam reciprocity parameter indicates a qualitative measure of one or more transmission beams of the wireless device.

Abstract: The present application relates to methods for operating a terminal device and a base station of a cellular wireless multiple-input and multiple-output, MIMO, system. An uplink precoding for transmitting uplink signals from a plurality of antenna elements of the terminal device to the base station is determined. An uplink pilot signal using the uplink precoding and a radio resource of a transmission frame of the MIMO system is transmitted from the plurality of antenna elements. At the base station, a downlink precoding and uplink receive parameters are adjusted based on a receive property of the precoded uplink pilot signal from the terminal device.

Abstract: A method (20) performed by a wireless terminal (10) in a wireless communication network (10, 30) is provided. In the method (20), based on a (fundamental) polarization tracking capability of the wireless terminal (10), at least one downlink polarization of at least one downlink communication between the wireless terminal (10) and an access node (30) of the wireless communication network (10, 30) is determined (204). A reference polarization from the at least one downlink polarization is selected (207). Based on the reference polarization and a (momentary) polarization tracking ability of the wireless terminal (10), at least one uplink polarization of at least one uplink communication between the wireless terminal (10) and the access node (30) is configured (210). A corresponding method (40) performed by the access node (30) is also provided, as well as the mentioned wireless terminal (10) and the access node (30).

Abstract: A node transmits on a communication link (111, 112) using transmit time resources from a resource budget (700, 752) associated with a spectrum access restriction imposed on a second node (102).

Abstract: A method includes receiving (3006) at least one report signal (813) from at least one relay node (103, 104, 400), the at least one report signal (813) being associated with a plurality of communication links (111-115) formed by a first node (101, 400), a second node (102, 400), and the at least one relay node (103, 104, 400). The method also includes determining (3007) a multi-hop transmission path (192) for communication between the first node (101, 400) and the second node (102, 400) using communication links (111, 112) selected from the plurality of communication links (111-115), based on the at least one report signal (813) and a spectrum access restriction of a spectrum access of the first node (101, 400).

Abstract: Multi-beam multiplexing in mobile radio communication networks, specifically for initial network access transmissions, such as Random Access Channel (RACH) transmissions and other initial network access signals that affect the operation of the Random Access operation. A network node is configured to distribute, simultaneously, a plurality of beams across a predetermined coverage area. Each of the beams are associated with a different coverage area. In addition, a plurality of sub-carriers are precoded in an OFDM modulated signal, which includes control information, for the purpose of shaping (i.e., beamforming) each of the plurality of beams. In this regard, one or more sub-carriers are mapped to a beam.

Abstract: The present invention relates to a method for operating a base station (10) of a wireless communication network. Precoding information for concentrating a radio-frequency power of a transmitted radio-frequency signal to a group of terminal devices (41 to 43) arranged in a sub area (37) of a coverage area (30) of the base station (10) is determined and applied to an antenna array (11) of the base station (10). A synchronization signal is transmitted from the base station (10) to the group of terminal devices (41 to 43) using the precoding information.

Abstract: Systems and methods for managing interference in a communication network include transmitting a first downlink signal (50) from a first transmit/receive point (TRP) (46) to an electronic device (14) using a beam (62). The electronic device (14) can also receive a second downlink signal (52) from a second TRP (48), where a portion (54) of the first downlink signal (50) from the first TRP (46) interferes with the second downlink signal (52). The first TRP (46) then receives a series of uplink pilot signals (66, 68) from the electronic device (14). Using the received uplink pilot signals (66, 68), the first TRP (46) can then estimate the angle of departure (AoD) for the intended signal (first downlink signal (50)), and the AoD for the interference signal (54).

Abstract: A method for performing a listen-before-talk procedure in a first transceiver device (N1) for wireless electromagnetic communication in a frequency band (150) is disclosed. A first transceiver device (N1) configured to perform the method is also disclosed. The method comprises receiving at the first transceiver device (N1) a stream of data (11) from a second transceiver device (N2), and determining whether the second transceiver device (N2) is capable of receiving in only a single or in two polarization directions. If the second transceiver device (N2) is capable of receiving in two polarization directions, then the method comprises determining and using an energy threshold that is larger than a regulated energy threshold for listen-before-talk within the frequency band (150).

Abstract: Pulse signal transmission, such as radar pulses or the like are used in a high frequency mobile communication network as a means for determining or assisting in determining the likely presence of User Equipment (UE) and/or tracking UE in a predetermined area. As a result of determining the likely presence of UE and/or tracking UE, such information may be used to expedite either a handover or establish re-connection within the communication network. In this regard, more targeted beam sweeps or more frequent sweeps can be made in the direction where the UE has been determined to likely be present in order to hasten the establishment of the communication link between the targeted transmission point, such as a Base Station (BS) or the like, or reconnection to the existing transmission point.

Abstract: A method includes receiving (402) a plurality of reference signals (301-303) at an antenna port of a communication device (101). Each reference signal (301-303) is sent using a corresponding precoder. The precoder is selected from a first set of precoders. The method further includes determining (403) a channel estimate based on the received plurality of reference signals (301-303), and selecting (404) a precoder from a second set of precoders based on the determined channel estimate. The second set of precoders comprises at least one precoder in addition to the precoders of the first set of precoders. The method includes sending (405) an indication (304) relating to the selected precoder.

Abstract: The present application relates to methods for operating a terminal device (31) and a base station (20) of a cellular wireless multiple-input and multiple-output, MIMO, system (10). An uplink precoding for transmitting uplink signals from a plurality of antenna elements (312) of the terminal device (31) to the base station (20) is determined. An uplink pilot signal using the uplink precoding and a radio resource of a transmission frame of the MIMO system is transmitted from the plurality of antenna elements (311). At the base station (20), a downlink precoding and uplink receive parameters are adjusted based on a receive property of the precoded uplink pilot signal from the terminal device (31).

Abstract: A wireless communication device includes a wireless interface for conducting wireless communications with a network access node of a wireless network, the wireless interface having uplink and downlink beam forming capabilities. The wireless communication device further includes a control circuit configured to detect a predetermined condition and, in response to the detection, temporarily operate the wireless interface without beam correspondence between uplink and downlink operations; and transmit a message to the network access node that beam correspondence is not used by the wireless communication device.