Abstract: A method for random access which may be performed by a terminal device comprises receiving configuration information for a random access procedure from a network node. The method further comprises determining an association between random access resource and shared channel resource for the random access procedure, according to the configuration information. The association is based at least in part on a configuration of the shared channel resource. An association between signaling transmissions in a random access procedure can be configured flexibly and efficiently.

Abstract: A method for random access which may be performed by a network node comprises determining an association between a downlink transmission and an uplink transmission (e.g. an association between a synchronization signal and physical broadcast channel block and a random access occasion) in a two-step random access procedure, based at least in part on random access resource configuration for the two-step random access procedure (e.g. based at least in part on whether random access resource is shared by the two-step random access procedure and a four-step random access procedure). The method further comprises transmitting information indicating the association to a terminal device. Accordingly, an association between a synchronization signal and physical broadcast channel block and a random access occasion in a two-step random access procedure can be configured flexibly and efficiently.

Abstract: Network nodes, wireless devices and methods of reducing signaling overhead are provided. In one embodiment, a method includes transmitting to the wireless device at least one power threshold parameter to be used by the wireless device to determine a number of beams to be included in a multi-beam precoder codebook and transmitting to the wireless device a signal to interference plus noise ratio (SINR) to be used by the wireless device to determine to use one of a single beam precoder and a multiple beam precoder.

Abstract: A wireless device, network node and methods are provided. The network node includes processing circuitry configured to configure an aperiodic sounding reference signal, A-SRS, switching trigger, and transmit the configured A-SRS 5 switching trigger to a wireless device. The A-SRS switching trigger is one of: a downlink control information, DCI, of a predetermined DCI format and a DCI of another predetermined DCI format for group switching. In one embodiment, the predetermined DCI format is one of 2, 2A and 3, and the other predetermined DCI format for group switching is 1A.

Abstract: A method, system, network node and wireless device are disclosed. In one or more embodiments, A network node configured to communicate with a wireless device is provided. The network node includes processing circuitry configured to transmit a first configuration for prioritized 2-step random access, RA, signaling where the first configuration includes at least a power ramping step and is separately configured from a second configuration for RA signaling, and perform the prioritized 2-step RA signaling based on the power ramping step of the first configuration.

Abstract: A method for random access which may be performed by a terminal device comprises receiving, from a network node, information indicating an association between a downlink transmission and an uplink transmission (e.g. an association between a synchronization signal and physical broadcast channel block and a shared channel occasion) in a random access procedure. The association is based at least in part on configuration of random access resource (e.g. a random access occasion) and shared channel resource (e.g. the shared channel occasion) for an uplink message (e.g. including a preamble and physical uplink shared channel data) in the random access procedure. An association between a synchronization signal and physical broadcast channel block and a shared channel occasion in a random access procedure can be configured flexibly and efficiently.

Abstract: Certain aspects of the present disclosure provide a probe comprising a tube, wherein one or more optical fibers extend at least partially through the tube for transmitting at least one of a laser light and an illumination light from a light source to a target location. A distal end of the tube comprises a flat-walled morphology, and a protective window with a round edge is press-fit to the distal end. The flat-walled morphology of the distal end of the tube has a reduced diametric interference sensitivity, thus allowing a wider range of tolerances between the window and the tube walls for effective press-fitting.

Abstract: The present disclosure provides a method in a User Equipment of transmitting a random access preamble and a physical uplink shared channel, comprising: determining a resource size to be used to contain the physical uplink shared channel, the resource size being one of a set of predetermined sizes; identifying a resource to be used from a predetermined set of resources, the resource in the set of resources corresponding to the determined resource size, each resource being identified with a respective first index n and occupying a distinct set of OFDM symbols and subcarriers; identifying a PRACH preamble with a second index n? corresponding to the first index n of the identified resource; and transmitting the identified PRACH preamble, and the physical uplink shared channel in the identified resource.

Abstract: Embodiments of the present disclosure relates to a method, apparatus for monitoring PDCCH in random access procedure. The method performed by a terminal device comprises: obtaining (S101) a first configuration for a first physical downlink control channel, PDCCH; transmitting (S102) a message for requesting a random access, RA; monitoring (S103) the first PDCCH, based on the first configuration; and receiving (S104) a message on a physical downlink shared channel, PDSCH, based on information in the first PDCCH obtained during the monitoring; wherein the message for requesting the RA includes a random access channel, RACH, preamble and a physical uplink shared channel, PUSCH. According to embodiments of the present disclosure, the monitoring of PDCCH may be achieved in a RACH procedure different with 4-step RACH procedure, such as in a 2-step RACH procedure.

Abstract: Various embodiments of the present disclosure provide methods and apparatuses for determining radio network temporary identifier (RNTI) in a two-step random access procedure. A method of a terminal device, comprising: determining a request message for random access, wherein the request message comprises a preamble and a physical uplink shared channel, PUSCH, message and the PUSCH message is determined based on a first radio network temporary identity, RNTI; transmitting the request message; and obtaining a response message for random access based on a second RNTI, wherein the first RNTI and the second RNTI are the same or different.

Abstract: Certain aspects of the present disclosure provide a thermally robust laser probe assembly comprising a cannula, wherein one or more optical fibers extend at least partially through the cannula for transmitting laser light from a laser source to a target location. The probe assembly further comprises a lens housed in the cannula and a protective component press-fitted to the distal end of the cannula, wherein the lens is positioned between the one or more optical fibers and the protective component.

Abstract: A method, in a radio network node, comprises identifying, among a predetermined codebook of precoding matrix codewords, a subset of precoding matrix codewords that are not to be reported by the wireless device in channel-state-information, CSI, feedback, and transmitting, to the wireless device, a bitmap identifying the subset of precoding matrix codewords that are not to be reported by the wireless device; where each bit in the bitmap corresponds to only one combination of a first dimension index l?1 and a second dimension index l?2 out of the possible combinations of the first dimension index l?1 and the second dimension index l?2, and where the first dimension index l?1 and the second dimension index l?2 identify a two-dimensional beam, the two-dimensional beam being defined by a vector of complex numbers comprised within at least one column of a precoding matrix codeword in the codebook.

Abstract: According to some embodiments, a method is performed by a user equipment for reporting channel state information. The user equipment is configured with two or more channel state information reference signal, CSI-RS, resources in a CSI-RS resource set. The method comprises: selecting at least two CSI-RS resources from the CSI-RS resource set, wherein each of the at least two selected CSI-RS resources are associated to a set of spatially multiplexed layers, wherein different sets comprise different layers; determining a preferred precoder matrix for the selected CSI-RS resources; and transmitting a CSI report indicating the selected CSI-RS resources and the preferred precoder matrices. The method may further comprise calculating a channel estimate for the selected CSI-RS resources, and determining a channel quality indicator, CQI, corresponding to a hypothetical transmission from a plurality of effective channels where layers transmitted through the effective channels mutually interfere.

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: Provided herein is a probe for treating an eye of a patient. In one or more embodiments, the probe includes a body, and a tubular element having a main lumen extending from the body, the tubular element comprising a distal end. The probe further includes a visualization optical fiber within the main lumen, the visualization optical fiber adapted to emit an illumination provided by at least one of a plurality of light sources connected to the visualization optical fiber. In some embodiments, the probe further includes an optical switching system (e.g., a time-division multiplexor) operable with the plurality of light sources, wherein the optical switching system is adapted to independently control each of the plurality of light sources. By providing time-division multiplexing between different surgical light sources, quasi-simultaneous illumination delivery through the same optical path may be achieved.

Abstract: A method in a terminal device. The method includes determining a DeModulation Reference Signal (DMRS) configuration for a Physical Uplink Shared Channel (PUSCH) and transmitting to a network device the PUSCH using the DMRS configuration along with a preamble, in a random access message.

Abstract: A pneumatic valve directs pressurized air to and air exhaust from a surgical implement, such as a dual actuation vitreous probe. The pneumatic valve includes an axially symmetric valve body configured to rotate from a first position, in which the pneumatic valve places a first port of the surgical implement in fluid communication with the pressurized air and a second port of the surgical implement in fluid communication with the air exhaust, to a second position, in which the pneumatic valve places the first port in fluid communication with the air exhaust and the second port in fluid communication with the pressurized air, and back to the first position, in one rotational direction. As such, the axially symmetric valve body continuously rotates in one rotational direction to alternate the pressurized air and the air exhaust between the two ports of the surgical implement to drive the dual actuation operation.

Abstract: According to some embodiments, a method performed by a wireless device for transmitting on a plurality of antennas comprises signaling, to a network node, a wireless device power transmission capability. The wireless device power transmission capability identifies a power ratio value of a plurality of power ratio values that the wireless device supports for transmission of a physical uplink channel Each value of the plurality of power ratio values corresponds to a transmission power capability and to a number of antenna ports. A power ratio refers to a ratio relative to a maximum power the wireless device is rated to transmit. The method further comprises transmitting a physical uplink channel using the 0 number of antenna ports with a power scaled at least by the power ratio value.

Abstract: An apparatus for performing bioelectric stimulation, the apparatus comprising: a stimulation unit; a measurement unit comprising an amplifier; first and second stimulation electrodes operable to apply electrical signals to tissue of a patient; first and second measurement electrodes operable to receive first and second measurement signals from the tissue of the patient; wherein the stimulation unit is configured to deliver a first stimulation signal to the first stimulation electrode and a second stimulation signal to the second stimulation electrode; wherein the first signal and the second signal are mirrored about a biasing voltage, the biasing voltage set in dependence of the dynamic range of the amplifier.

Abstract: A method is performed by a wireless device for accessing a network. The method comprises performing a two-step random access procedure. This comprises transmitting a preamble in at least one Physical Random Access Channel, PRACH, occasion, and transmitting a Physical Uplink Shared Channel, PUSCH. A position of the at least one PRACH occasion for transmitting the preamble is determined to ensure that a gap between transmitting the preamble and transmitting the PUSCH is less than a predetermined duration.