Abstract: Systems and methods are provided for identifying an alternative network function (NF) service consumer to which a notification regarding an observed event may be sent (in the event that a notification sent to an originally-intended/targeted NF service consumer fails). NF discovery request and response operations between a NF service producer and a data repository (at which a NF profile associated with the NF service consumer is registered) may be performed to identify and receive (as part of a NF discovery response operation), binding indication information. The binding information may be used to determine the aforementioned, alternative NF service consumer to receive the notification.

Abstract: An apparatus for wireless communication includes: a receiving unit, for receiving a first orthogonal time-frequency space symbol including multiple delay Doppler regions corresponding to multiple transmitting terminals; a processing unit, for executing the following steps: A1: dividing the multiple delay Doppler regions into multiple first-type sets according to different displacement intervals occupied in a first dimension, and performing iterative serial de-interference decoding on the multiple time-delay Doppler regions in a same first-class set; A2: dividing the multiple delay Doppler regions into multiple second-type sets according to different displacement intervals occupied in a second dimension, and performing iterative serial de-interference decoding on the multiple time-delay Doppler regions in a same second-class set. The first dimension is one of a delay dimension and a Doppler dimension, and the second dimension is the other dimension of the two dimensions.

Abstract: Disclosed is a chip-level disc-type acousto-optic standing wave gyroscope including a substrate and a gyroscope structure placed on an upper surface of the substrate; the substrate is in a shape of a circular disc; the gyroscope structure includes an acoustic wave drive module and an optical detection module, the acoustic wave drive module is arranged in a circular shape taking the center of the circular disc as an origin and extending outward radially, and the optical detection module is arranged in the middle of the acoustic wave drive module and is annular; the acoustic wave drive module includes an annular interdigitated transducer, a metal electrode layer group uniformly sputtered on the annular interdigitated transducer, annularly arranged metallic pillars and an annular reflection grating, respectively placed in sequence from center of the disk radially to periphery of the disk; the optical detection module includes a first grating coupler, an optical waveguide at a light source input end, a first coup

Abstract: A method for preparing 2,5-bishydroxymethylfuran using 5-chloromethylfurfural, the 5-chloromethylfurfural is transformed into the 2,5-bishydroxymethylfuran using a catalyst, a base neutralizer, sodium dithionite, and deionized water.

Abstract: An aqueous pigment dispersion for preparing an environmentally conscious aqueous inkjet ink in which a pigment is finely and stably dispersed and which records images having excellent durability, glossiness, color developability, and adhesiveness to various printing substrates. The aqueous pigment dispersion contains a pigment, water, a water-soluble organic solvent, and a polymeric dispersant that disperses the pigment. The polymeric dispersant is a polymer including a constitutional unit (i) derived from (meth)acrylic acid and/or itaconic acid, and a constituent unit (ii) derived from (meth)acrylate derived from biological material, such as ethyl (meth)acrylate, having an acid value of 30 to 250 mgKOH/g, number average molecular weight of 1,000 to 30,000, and a polydispersity index (weight average molecular weight/number average molecular weight) of 2.5 or less. The content of the constituent unit (ii) is 50% by mass or more, and at least part of carboxy groups is neutralized with an alkali.

Abstract: A method for fabricating a working stamp for forming surface gratings in a waveguide workpiece includes performing a series of step lithography processes using a series of master stamps so as to form a working stamp having a first surface having a plurality of surface gratings formed therein. Each step lithography process includes pressing a master stamp of the series of master stamps into a material layer of a working stamp workpiece at a corresponding region of the material layer, the master stamp having a plurality of surface grating patterns formed thereon. Each step lithography process further includes applying ultraviolet light to the corresponding region to locally cure the material layer at the corresponding region and detaching the master stamp from the material of the working stamp after applying the ultraviolet light.

Abstract: An augmented-reality (AR) eyewear display utilizes an optical waveguide having multi-layered optical gratings in a repeating arrangement. The optical gratings include varying depths, slope angles, lengths, and/or widths in order to tune the gratings to provide an improved AR eyewear display. By using the different configurations of two-dimensional or three-dimensional gratings disclosed herein in a waveguide of an AR eyewear display, optical characteristics of the waveguide are optimized to provide, e.g., high resolution and/or contrast, high display uniformity, high input coupling efficiency, and/or high output coupling efficiency. Accordingly, in some embodiments, aspects of the present disclosure enable lower-power AR eyewear displays to produce the same quality of display of a higher-power conventional AR eyewear display waveguide.

Abstract: An apparatus for wireless communication includes: a receiving unit, for receiving a first orthogonal time-frequency space symbol including multiple delay Doppler regions corresponding to multiple transmitting terminals; a processing unit, for executing the following steps: A1: dividing the multiple delay Doppler regions into multiple first-type sets according to different displacement intervals occupied in a first dimension, and performing iterative serial de-interference decoding on the multiple time-delay Doppler regions in a same first-class set; A2: dividing the multiple delay Doppler regions into multiple second-type sets according to different displacement intervals occupied in a second dimension, and performing iterative serial de-interference decoding on the multiple time-delay Doppler regions in a same second-class set. The first dimension is one of a delay dimension and a Doppler dimension, and the second dimension is the other dimension of the two dimensions.

Abstract: Systems and methods are provided for optimizing session continuity management during 5th Generation (5G) and 4G/Long Term Evolution (LTE) interworking. Conventional 4G/LTE and 5G interworking involves session continuity subscription or retrieval operations to obtain the latest mobility data for a user equipment (UE) attempting to attach to a particular communications network. These operations include exchanging various messages can be avoided by determining the existence of an Authentication, Authorization, Accounting (AAA)/evolved Packet Data Network Gateway (ePDG) registration (among other conditions).

Abstract: 5G provides for interworking with the 4G/LTE networks, which provides for mobility of user equipment between the 5G and 4G/LTE networks. Mobility from 5G to 4G/LTE requires deregistering user equipment from the 5G core network (5GC) by communicating a deregistration notification from the Evolved Packet Core (EPC) to the 5GC. Systems and methods disclosed herein provide for an optimized deregistration process through avoidance of redundant deregistration notification traffic injected into the 5G network by utilizing 4G/LTE connectivity information to determine whether or not to inject deregistration notifications into the 5G network.

Abstract: Systems and methods are provided for generating a two-dimensional pattern on a photoresist layer. A photoresist layer is exposed via a first exposure to a first unidimensional series of features alternatingly providing first minima and maxima of illumination intensity along a first dimension. The photoresist layer is then exposed via a second exposure to a second unidimensional series of features alternatingly providing second minima and maxima of illumination intensity along a second dimension that is angularly separated from the second dimension by an exposure rotation factor.

Abstract: An electronic device, a wireless communication method, and a computer readable storage medium are provided. The electronic device comprises a processing circuit configured to: determine whether uplink transmission of an IAB node satisfies a long-term congestion condition; when it is determined that the long-term congestion condition is satisfied, send an offloading request to an IAB donor node; and perform data offloading of an egress link of the uplink transmission of the IAB node according to offloading license information from the IAB donor node. According to at least one aspect of the embodiments of the present disclosure, when the uplink transmission of the IAB node satisfies the long-term congestion condition, the data offloading of the egress link of the uplink transmission of the IAB node can be performed, so as to improve the backhaul capability of the IAB node, thereby solving the long-term congestion problem of the IAB node.

Abstract: A method for fabricating a working stamp for forming slanted surface gratings in a waveguide workpiece includes providing a master workpiece comprising a substrate and performing a sequence of photoresist deposition processes, grayscale lithography processes, and etching processes on the master workpiece so as to form an imprint replication master having a pattern of slanted gratings in a working surface of its substrate, the slanted gratings having sidewalls that are not substantially orthogonal to a working surface of the substrate. The method also includes conforming a soft stamp material layer to the working surface of the imprint replication master so that the soft stamp material layer has a pattern of slanted protrusions corresponding to the pattern of slanted gratings, and removing the imprint replication master from the soft stamp material and curing the soft stamp material layer surrounding the pattern of slanted protrusions to form the working stamp.

Abstract: Systems and methods are provided for automatic notifications of expired subscriptions. In various embodiments, a network function can request a subscription from a Unified Data Repository (UDR). The request for the subscription can include a request for a notification when the subscription expires or at a time prior to the expiration of the subscription. When the subscription expires or at the time prior to the expiration of the subscription, the UDR can provide a notification that the subscription has expired or is about to expire. Based on the notification, the network function can request to re-subscribe or request a new subscription from the UDR.

Abstract: A method for fabricating a working stamp for forming surface gratings in a waveguide workpiece includes performing a series of step lithography processes using a series of master stamps so as to form a working stamp having a first surface having a plurality of surface gratings formed therein. Each step lithography process includes pressing a master stamp of the series of master stamps into a material layer of a working stamp workpiece at a corresponding region of the material layer, the master stamp having a plurality of surface grating patterns formed thereon. Each step lithography process further includes applying ultraviolet light to the corresponding region to locally cure the material layer at the corresponding region and detaching the master stamp from the material of the working stamp after applying the ultraviolet light.

Abstract: An augmented-reality (AR) eyewear display utilizes an optical waveguide having multi-layered optical gratings in a repeating arrangement. The optical gratings include varying depths, slope angles, lengths, and/or widths in order to tune the gratings to provide an improved AR eyewear display. By using the different configurations of two-dimensional or three-dimensional gratings disclosed herein in a waveguide of an AR eyewear display, optical characteristics of the waveguide are optimized to provide, e.g., high resolution and/or contrast, high display uniformity, high input coupling efficiency, and/or high output coupling efficiency. Accordingly, in some embodiments, aspects of the present disclosure enable lower-power AR eyewear displays to produce the same quality of display of a higher-power conventional AR eyewear display waveguide.

Abstract: The systems and method disclosed herein optimize the deregistration of user equipment (UE) from the 5GC. For example, when the UE operates in single-registration mode, for AMF 3GPP access registration with drFlag attribute set to false (or to be absent) in UDM/UDR, a “new attribute”, singleRegIndication, is defined. The AMF sets the singleRegIndication value to “NO_INDICATION” when there is no N26 interface connection to MME. UDM will not instruct HSS to cancel MME (and SGSN/VLR) if there is an old AMF 3GPP registration for which “NO_INDICATION” or “DEREGISTER_SN” is set as the singleRegIndication value (i.e. the old AMF was already registered with the single registration). Otherwise, the AMF sets the singleRegIndication value to “DEREGISTER_SN” when the AMF has established a N26 interface connection to the old MME. UDM can instruct HSS to cancel the MME (and SGSN/VLR).

Abstract: There is provided an aqueous pigment dispersion that makes it possible to prepare an environmentally conscious aqueous inkjet ink in which a pigment is finely dispersed in a stable manner and at a high level and which is capable of recording an image having excellent durability, glossiness, color developability, and adhesiveness to various printing substrates. The aqueous pigment dispersion is an aqueous pigment dispersion containing a pigment, water, a water-soluble organic solvent, and a polymeric dispersant that disperses the pigment, wherein the polymeric dispersant is a polymer including a constitutional unit (i) derived from at least one of (meth)acrylic acid and itaconic acid, and a constituent unit (ii) derived from a (meth)acrylate derived from biological material, such as ethyl (meth)acrylate, having an acid value of 30 to 250 mgKOH/g, having a number average molecular weight of 1,000 to 30,000, and having a polydispersity index (weight average molecular weight/number average molecular weight) of 2.

Abstract: An improved nanoimprint lithography process is presented in which the height is controlled by the thickness of a residual layer of resin leftover after ultraviolet curing and releasing of a nanoimprint mold from a resin layer. Moreover, the thickness of the residual layer may be controlled by a fill factor of either a nanoimprint mold that transfers its pattern to a resin layer disposed on a substrate, or by droplets of resin in the resin layer.

Abstract: Disclosed is a chip-level resonant acousto-optic coupling solid-state wave gyroscope based on MEMS technology. A surface acoustic progressive wave mode sensitive structure and a micro-ring resonant cavity optical detection structure are combined in the gyroscope. Through acousto-optic effect, mechanical strain of the device crystal caused by wave vibration of a primary surface acoustic wave and a secondary surface acoustic wave caused by Coriolis force is converted into a variation in the refractive index of an optical waveguide etched on the device, so that the optical signal transmitted in the waveguide diffracts, thereby generating frequency modulation. Meanwhile, a micro-ring resonant cavity using the resonance principle peels off the frequency change introduced by the primary surface acoustic wave, and obtains an output signal containing external angular velocity information.