291 results about "Guard band" patented technology

Techniques pertaining to techniques for physical downlink shared channel (PDSCH) allocation in subband full duplex (SBFD) networks are described. Such techniques pertain to both PDSCH frequency domain resource allocation (FDRA) Type-0 and / or FDRA Type-1 and include the use of fractional resource block groups (RBGs), virtual resource block (VRB)-interleaving, canceling one or more repetitions or SPS transmission in a slot that is an SBFD slot or a non-SBFD slot. The techniques further include VRB-to-physical resource block (PRB) mapping that excludes one or more PRBs in the sequence of PRBs that belong to one or more UL-subband or one or more guard bands and applying one or more rules to provide for the selection of a wideband setting for a precoder resource block (RB) group (PRG) size with respect to use of a physical downlink shared channel (PDSCH) demodulation reference signal (DMRS).

A method for receiving a downlink channel by a terminal in a wireless communication system includes: receiving, from a base station, first information related to a guard band in a first resource region located in one carrier; receiving, from the base station, second information related to multiple resource sets, each of which is identified by the guard band in the first resource region on the basis of the first information; and receiving, from the base station, a downlink channel on a resource indicated by the second information to be available for reception of the downlink channel.

The invention belongs to the technical field of integrated circuit design automation, and discloses an anti-radiation standard unit automatic layout method, which adopts a two-stage reinforcement learning strategy: in the first stage, training a device layout strategy model, extracting MOS device information by analyzing a CDL file, and constructing a circuit diagram structure as state representation; generating a preliminary device layout result by using a dynamic action mask mechanism; and in the second stage, independently training the guard band insertion strategy model, and optimizing the guard band insertion position and sequence based on the candidate insertion point set so as to meet the anti-radiation design rule and reduce the wiring difficulty. The two stages both adopt a Maskable PPO algorithm, encourages gate alignment, source-drain proximity and shortest connection path through a reward function, and punishes layout conflicts and DRC violations. According to the invention, by means of the two-stage design of division of labor and cooperation, the layout efficiency and compliance of the anti-radiation standard unit are significantly improved, and the method has the characteristics of high efficiency, self-adaption and high engineering practicability.

A network entity configures a synchronization signal block (SSB) using SSB resources that convey a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) within an SSB resource area of a resource grid bounded in time by a first configured integer number of time units and bounded in frequency by a second configured integer number of physical channels. A product of the first configured integer number and the second configured integer number is a predetermined constant value, each symbol of the SSB has an equal number of resource elements (REs), and all REs in the each symbol of the SSB, except REs within a frequency guard band between any two of the PSS, the SSS, and the PBCH in the each symbol of the SSB, have non-zero values. A user equipment receives the SSB in the SSB resources as a beamformed SSB.

Methods, systems, and devices for wireless communications are described. Techniques described herein relate to schemes for managing an overlap of at least part of a tracking reference signal (TRS) with an uplink subband or a guard band in a subband full duplex (SBFD) slot or symbol. In some examples, if a user equipment (UE) and / or a network entity determines that at least a portion of a TRS is scheduled for reception in an uplink subband or a guard band of an SBFD slot or symbol, the UE and / or the network entity may: drop the TRS, puncture the portion of the TRS that overlaps with the uplink subband or the guard band; or may shift the frequency position of the TRS such that the TRS is scheduled within the downlink subband(s) of the SBFD slot or symbol.

Apparatus, methods, and computer program products for full duplex communication are provided. An example method may include receiving a FDRA indication from a network entity, where the FDRA indication allocates a set of scheduling resources in a first band of a DL band or a UL band and includes an indication associated with a resource utilization in a second band of the UL band or the DL band, and where the DL band and the UL band overlap in a time domain. The example method may include receiving, from the network entity, a RRC configuration associated with a guard band between the UL band and the DL band. The example method may include communicating, with the network entity, a UL transmission or a DL transmission based on at least one of the set of scheduling resources, the guard band, or the resource utilization in the second band.

Conventional Orthogonal frequency division multiplexing (OFDM) is unable to retain its orthogonality and suffers loss in performance in high Doppler circumstances. The present disclosure converts a signal received in delay-time domain into delay-Doppler domain and extracts a guard band region from the received converted signal. A 2-dimensional fast Fourier transform is performed on guard band region extracted from received converted signal. A 2-dimensional fast Fourier transform of the received converted signal is divided with the 2-dimensional fast Fourier transform of transmitted signal to extract phase information. A dictionary is created using a pre-defined set of values of delay and Doppler. A sparse recovery problem is formed for received converted signal using an orthogonal matching pursuit algorithm. One or more parameters are estimated by identifying one or more locations pertaining to the one or more columns corresponding to L significant non-zero locations comprised in sparse vector of sparse recovery problem.

The invention relates to the technical field of circuit performance testing, in particular to an integrated circuit aging effect prediction and circuit life reliability evaluation method. The specific implementation process comprises the following steps: acquiring a physical design netlist and a basic process library, analyzing a test load into transient upset density, and generating a time-varying excitation flow in combination with layout geometric information; dividing an aging sensitive domain by using a double-track aging difference mechanism, and performing integration processing on the time-varying excitation flow to quantify a circuit aging parameter; performing full-chip time sequence simulation on the circuit aging parameter, and predicting a performance erosion index; and calculating a dynamic redundancy retraction vector, adjusting the reduction amplitude of the guard band, and converging the evaluation in a target design interval. According to the method, the time-varying excitation flow and the sensitivity partition topology are utilized, the multi-physical field coupling effect under the dynamic load is effectively captured, the problem of prediction distortion caused by static hypothesis is solved, and the balance of the chip area, the power consumption and the reliability service life is achieved through the dynamic redundancy retraction vector optimization design protection band.

Various solutions for Internet of Things (IoT) signal transmission with respect to reader apparatus and an IoT device are described. A reader apparatus may transmit a message to an IoT device through an in-band frequency or a guard band frequency in a frequency spectrum for an orthogonal frequency division multiplexing (OFDM) signal. A start of the transmission is aligned with a boundary of an OFDM symbol of the OFDM signal. The reader apparatus may receive a backscattered IoT signal from the IoT device through the in-band frequency or the guard band frequency.

Embodiments of the present application provide a communication method and a communication apparatus, which can send a first signal on the basis of first information. The method comprises: an AIoT device sends a first signal on the basis of first information, the first information comprising one or more of the following: a first sequence configuration corresponding to the first signal; a configuration used for estimation of a non-ideal factor; a guard band configuration of the first signal; a transmit power configuration of the first signal; or a configuration of a sub-channel of the first signal. The sub-channel is configured on the basis of a system bandwidth or a transmission bandwidth or an occupied bandwidth of an AIoT system, or the sub-channel can also be configured on the basis of a transmission bandwidth or an occupied bandwidth of the first signal, and the sub-channel is used by the AIoT device to send the first signal. The first signal is applied to the AIoT system.

The invention discloses a traffic scheduling method, system and device and a readable storage medium. The method comprises the following steps: in response to a message forwarding instruction, obtaining the length of non-service time of a currently expected forwarding message and the data transmission rate of an exit channel; when the non-service time is smaller than or equal to a preset time threshold value, calculating the amount of data which can be transmitted in the non-service time based on the data transmission rate and the length of the non-service time; and if the amount of data that can be transmitted in the non-service time is greater than or equal to the size of the to-be-transmitted message, the to-be-transmitted message is allowed to be forwarded, otherwise, forwarding is forbidden. Compared with the prior art, stable realization of functions corresponding to the protection belt and the gating remaining time is guaranteed. And meanwhile, the transmission efficiency of the message in the gating period is improved. Furthermore, based on the configuration of the time threshold, the non-service time is differentiated into two different dimensions for operation, so that the macroscopic waste of hardware resources is avoided, and the adaptability of the scheme is improved.

The invention discloses a pilot frequency guard band dynamic adjustment method and system, electronic equipment and a storage medium, and relates to the technical field of communication. The method comprises the following steps: performing high-precision channel measurement based on a time delay-Doppler domain pilot frequency structure, and constructing a time-varying parameter matrix; establishing a time delay-Doppler domain resource grid mapping relation based on the time-varying parameters, and determining a pilot frequency guard band; and adaptive optimization is carried out on the pilot frequency guard band, and the range of the pilot frequency guard band is dynamically adjusted. According to the method, a double-layer self-adaptive mechanism is utilized, the multi-scale nonlinear adaptation problem of the pilot frequency protection band in a high dynamic scene is solved, the pilot frequency protection band configuration is dynamically adjusted, the pilot frequency pollution problem caused by the time delay and Doppler asymmetric change in the satellite top passing period is solved, intelligent optimization of the pilot frequency protection band configuration is achieved, and the pilot frequency protection band configuration is optimized. And meanwhile, the guard band range can be optimized in real time according to the channel quality, the anti-interference capability is enhanced when the channel is degraded, resources are quickly released when the channel is recovered, and the balance between the robustness of the system and the spectrum efficiency is considered.

Provided in the embodiments of the present application are communication methods and communication apparatuses, which can send first carriers on the basis of configurations of the first carriers. A method comprises: on the basis of a configuration of a first carrier, a first node sending the first carrier to an ambient Internet-of-Things (AIoT) device, wherein the configuration of the first carrier comprises one or more of the following: a power configuration of the first carrier, a carrier spacing configuration of the first carrier, a guard band configuration of an AIoT system, a frequency hopping configuration of the first carrier, a codebook configuration of the first carrier, or a waveform configuration of the first carrier, and the first carrier is used for carrying modulation information of the AIoT device in the AIoT system.

Wireless communication systems, apparatuses, and methods are provided. A method of wireless communication performed by a user equipment (UE) includes receiving, from a network element, a first configuration indicating a time location and a frequency location for a network side subband full duplex (SBFD) mode of operation, where the time location indicates at least one SBFD symbol or slot (SBFD symbol / slot) format, and the frequency position indicates a plurality of downlink sub-bands and uplink sub-bands or a plurality of uplink sub-bands and guard bands; and receiving, from the network element, a second configuration indicating a change from the at least one SBFD symbol / slot format to a different SBFD symbol / slot format.

To provide a communication system capable of maintaining a FDD system communication between a base station apparatus and a terminal apparatus and reducing the weight and power consumption of a radio relay apparatus.SOLUTION: A service link and a feeder link use the same frequency band (shared frequency band) in which an FDD uplink band in which a plurality of frequency channels are adjacently arranged and an FDD downlink band in which a plurality of frequency channels are adjacently arranged are spaced apart from each other via a predetermined guard band. A radio relay apparatus includes a shared antenna, a frequency conversion unit that converts a frequency of an REV (reverse) link signal in a first frequency channel of an FDD uplink band into a frequency of a second frequency channel of an FDD downlink band, and converts a frequency of an FWD (foward) link signal in the second frequency channel of the FDD uplink band into a frequency of a first frequency channel of the FDD downlink band, and a single power amplifier that amplifies the REV link signal and the FWD link signal.SELECTED DRAWING: Figure 12

The invention relates to the technical field of broadband signal synthesis and high-speed digital-to-analog conversion, in particular to an oversampling-based real-time frequency interleaving digital-to-analog conversion system aliasing suppression method and system, and aims to solve the problem of spectrum aliasing caused by non-ideal characteristics of a digital sub-band decomposition filter and an analog filter under a real-time architecture of the system. In the invention, the sub-band decomposition is completed by adopting the linear phase complementary filter bank, so that distortion introduced by a transition band of a digital filter is avoided; by restraining system parameters such as passband and stopband frequencies and local oscillation frequency of a sub-band decomposition filter, a protection band is set by an oversampling mechanism, a frequency margin is reserved for a transition band of the filter, and aliasing components are suppressed. According to the method, extraction aliasing of a digital domain and mirror image aliasing of an analog domain are avoided at the same time from the system architecture, the frequency spectrum purity of output signals is improved, the method is suitable for a real-time system for processing continuous data streams, and technical support is provided for achieving a high-performance broadband signal source.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, configuration information indicating a downlink initial access signal (IAS) to random access channel (RACH) occasion association pattern, wherein the downlink IAS to RACH occasion association pattern indicates at least one of switching gaps between downlink IAS occasions and between RACH occasions or guard bands between RACH occasions. The UE may transmit, to the base station, a RACH message using a RACH occasion according to the downlink IAS to RACH occasion association pattern. Numerous other aspects are described.

The embodiment of the invention provides a power amplifier trap effect compensation method and device, and the method comprises the steps: inserting a background carrier at a guard band frequency domain position of a working carrier, and obtaining an input signal; monitoring the signal quality of an output signal of an output port of a transmitting channel based on the background carrier; under the condition that the signal quality is not qualified, obtaining the service load of the working carrier; and adjusting the transmitting power of the background carrier based on the service load of the working carrier so as to eliminate a power amplifier trap effect. According to the invention, the problem that the input signal has a power amplifier trap effect in the prior art is solved, and the effect of improving the quality of the output signal is further achieved.

A method by which a terminal operating in an unlicensed band transmits a signal includes the steps of: receiving, from a base station, configuration information about a carrier; receiving configuration information for configuring N (where N is an integer) guard band(s) for some frequency domains of the carrier; and transmitting a signal to the base station by using a first frequency domain of a bandwidth part belonging to the carrier, wherein the first frequency domain can be a domain excluding the N guard band(s) from the frequency domain of the bandwidth part.

Provided is a communication method, comprising: a terminal device and a network device can determine a channel bandwidth corresponding to a transmission bandwidth according to a first correspondence and the transmission bandwidth, and determine a guard band according to the channel bandwidth and a second correspondence, the second corresponding relationship comprises a one-to-one corresponding relationship between the plurality of channel bandwidths and the plurality of guard bands, and the plurality of guard bands corresponding to the plurality of channel bandwidths are monotonically not reduced along with the increase of the channel bandwidths.

This application provides a frequency offset correction method and a communication apparatus, and relates to the field of wireless communication technologies. The method includes: A second device performs down-conversion by using a first local oscillator signal, to receive a first reference signal from a first device, and adjusts the first local oscillator signal based on a receiving result of the first reference signal, to obtain a second local oscillator signal, where a frequency offset of the second local oscillator signal is less than a frequency offset of the first local oscillator signal. The second device performs down-conversion by using the second local oscillator signal, to receive a first data signal from the first device, where a guard band of the first reference signal is greater than a guard band of the first data signal.

The present disclosure relates to a method for communicating in a network-enabled with sub- band duplexing The present disclosure discloses a method for configuring SBFD symbol / slot / time resource for a user equipment (UE). The configuration of SB indicates the instances at which the SBs are active. SBs can be UL SB, DL SB or even guard bands. According to an embodiment, the configuration for UL SB, DL SB or guard bands is explicitly provided by the BS to the UE or implicitly derived by the UE. According to an embodiment, the SB's are configured in the time domain to the UEs in the network using different methods. The present disclosure further provides a methodology for defining UEs behavior in SBFD slots.

A method, network node and wireless device (WD) for phase noise mitigation are disclosed. According to one aspect, a method in a network node includes receiving an orthogonal frequency division multiplex (OFDM) signal provided over a radio frequency (RF) channel that includes at least one guard band, the OFDM signal including at least one pilot signal. The method also includes mitigating phase noise based at least in part on the at least one pilot signal and further based on observations of signal content of the at least one guard band.

Methods, systems, and devices for wireless communications are described in which a repeater may provide assistance information and configuration requests for full-duplex communications. The assistance information may include information about filtering capabilities of the repeater, such as sub-bands that can be filtered to avoid cross-link interference (CLI) or self-interference (SI), a width of a pass-band or transition band, a level of rejection associated with repeater filters, and the like. The assistance information may also indicate an amount of guard-band needed between uplink and downlink sub-bands, supported sub-bands, supported transmit power or amplification levels, phase continuity capabilities, transition times between full-duplex and non-full-duplex symbols, or any combinations thereof. Additionally, or alternatively, the assistance information may indicate support for multiplexing between mobile termination (MT) and forward (FWD) units at the repeater, and CLI measurements associated with MT and FWD unit multiplexing may be provided.

The invention discloses a traffic scheduling method, device and equipment, a medium and a product, and relates to the technical field of network resource scheduling, and the method comprises the steps: determining the triggering time of each HOLD signal and RELEASE signal according to a gating list and protection band parameters of traffic transmission in a target communication network; the protection band parameters comprise protection band lengths, the starting time of each protection band length is the triggering time of the HOLD signal, and the ending time of each protection band length is the door control opening time; the traffic in the target communication network is divided into high-speed traffic and preemptable traffic; when each HOLD signal is triggered, judging whether the residual length of the current to-be-transmitted preemptible flow is transmitted in the current guard band or not; if yes, the remaining length is transmitted in the current protection band; and if not, carrying out preemptible operation on the residual length in the current protection band. The bandwidth utilization rate can be improved.

Protection of tubulars from premature wear in the mid-body section due to highly curved wellbores, including bowing from high axial compressive loads, or gravity induced bowing in a horizontal section of the wellbore is disclosed. It includes a method of installing a strong, wear resistant, fully encircling steel band around the midbody region of tubular joints on new and worn tubulars. Further, it does so without degrading the metallurgy or microstructure of the pipe body yet attaches the protective band with such high clamping force that it is unlikely to slip even under the most extreme service conditions. In addition, the circumferential integrity of the pipe band makes it even less likely to ever break off. A protective band includes a wear resistant hard banding weld overlay installed around the circumference of the protective band.

This invention relates to the field of computer technology, specifically to a method and apparatus for integrating third-party algorithm components based on dual-core collaboration. This application directly integrates third-party algorithm components into the BCM dual-core MCU, eliminating reliance on ZCU and CAN bus communication. This fundamentally eliminates the latency and security overhead caused by cross-ECU transmission and E2E protection, improving signal real-time performance and communication security. By clearly defining the functions and allocating resources of the BCM dual-core, a dedicated storage area is planned for the third-party algorithm components, and a standardized integration environment is built, achieving efficient and stable component integration. Simultaneously, peripheral access strategies are optimized, unnecessary protections and redundant polling are disabled, releasing idle computing power and hardware resources of the BCM and improving utilization. Without increasing the ZCU hardware cost, the chassis braking algorithm is deployed and executed locally, reducing performance losses caused by cross-domain communication and effectively improving the overall system operating efficiency and resource utilization efficiency.

A semiconductor device includes a substrate having at least one device isolation layer embedded therein, which defines a dummy active pattern and a plurality of active patterns in the substrate. A guard band extends in the substrate and surrounds the dummy active pattern and the plurality of active patterns. A dummy transistor has a plurality of dummy source / drain regions in the dummy active pattern, and a plurality of pass transistors have source / drain regions in the plurality of active patterns. Dummy wiring lines are provided, which electrically connect the guard band to the dummy source / drain regions of the dummy transistor. A field doping region, which at least partially overlaps with the device isolation layer, has an impurity therein that extends into the substrate.

The disclosed embodiments relate to an isolation method for full-duplex communication. The full-duplex antenna system includes a Tx (transmit) signal path comprising one or more elements, each element representing a power amplifier, one or more filters, and a Tx port of a Tx patch antenna operating in the Tx band to transmit an output signal to a satellite. Each of the one or more elements includes an Rx (receive) signal path, comprising a low-noise amplifier driven by the Rx port of an Rx patch antenna operating in the Rx band to receive an input signal from a satellite. The Rx band is separated from the Tx band by a guard band. The filters, together with the physical isolation between the Tx and Rx signal paths, provide sufficient isolation to reduce coupling between the Tx and Rx signal paths, thereby allowing the full-duplex antenna system to operate in full-duplex mode.

A network entity uses synchronization signal block (SSB) resources to configure SSBs, a synchronization signal block (SSB) resource delivers a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) within an SSB resource region of the resource grid defined in time by an integer number of time units of the first configuration and defined in frequency by an integer number of physical channels of the second configuration. The product of the integer number of the first configuration and the integer number of the second configuration is a predetermined constant value, each symbol of the SSB has an equal number of resource elements (REs), and all REs in each symbol of the SSB have a non-zero value, excluding REs within a frequency guard band between any two of the PSS, the SSS, and the PBCH in each symbol of the SSB. The user equipment receives an SSB in the SSB resource as a beamformed SSB.