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220 results about "Transmission Time Interval" patented technology

TTI, Transmission Time Interval, is a parameter in UMTS (and other digital telecommunication networks) related to encapsulation of data from higher layers into frames for transmission on the radio link layer. TTI refers to the duration of a transmission on the radio link. The TTI is related to the size of the data blocks passed from the higher network layers to the radio link layer.

Method and network node for link adaptation

The invention relates to a method for performing a link adaptation in an uplink transmission between a user equipment, UE, and a network node in a telecommunication network, the method comprising:obtaining a first value of a Modulation and Coding Scheme, MCS, for a future transmission at transmission time interval k in the uplink transmission, the first value of MCS being determined on the basis of a Signal to Interference and Noise Ratio, SINR, estimated by the network node for the future transmission at transmission time interval k; andpredicting a second value of the MCS for the future transmission at transmission time k by using a Q-learning process having as input the first value of MCS, first data indicating whether the future transmission at transmission time k is a first transmission or a retransmission, and second data indicating whether a feedback acknowledgement, ACK / NACK, of a transmission that took place at transmission time interval k−1 is equal to ACK or NACK.
Owner:TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Underwater acoustic signal communication and positioning integrated method

The invention discloses an underwater acoustic signal communication and positioning integrated method. The existing method does not jointly consider the problem of channel resource occupation caused by integration of communication and positioning. According to the method, mutually orthogonal Chirp subcarriers are used as communication signals, meanwhile, long Chirp signals are used as pilot frequency, and the pilot frequency and the communication signals are overlapped together to be sent at a sender, so that extra channel overhead caused by additional pilot frequency is saved, and the signal sending time interval is shortened. A receiver uses a plurality of pilot signals to perform joint Doppler estimation and compensation and time of arrival estimation, and the result of the time of arrival estimation is used for a positioning system and a communication system on the one hand. According to the demodulation mode, correlation calculation is carried out by using different Chirp subcarriers, and symbol demodulation is carried out according to correlation values. According to the communication and positioning integrated waveform design method, the signal sending time interval can be shortened, the system complexity can be reduced, and good communication performance is achieved.
Owner:ZHEJIANG UNIV

Pairing method of panoramic lens and panoramic lens

The invention relates to the technical field of panoramic lenses, and discloses a pairing method of a panoramic lens and the panoramic lens. The method comprises the following steps: a pan-tilt controller sends an equipment query frame to a panoramic lens and receives equipment identity verification data returned by the panoramic lens; sending a motion test sequence to the panoramic lens based on the equipment identity verification data, and receiving lens motion feature data fed back by the panoramic lens; calculating control delay compensation time according to the lens motion characteristic data; the holder controller monitors a wireless signal strength index between the holder controller and the panoramic lens in real time and inputs a handshake interval adjustment algorithm to obtain a handshake frame transmission time interval; and executing a pairing handshake process, establishing a compatibility mapping relationship between the controller protocol version and the lens protocol version, and generating wireless connection control parameters. According to the invention, automatic identity recognition between the holder controller and the panoramic lens is realized, manual pairing operation is not needed, and the intelligent level and the cross-brand interoperation capability of the holder control system are improved.
Owner:SHENZHEN YONGTAI PHOTOELECTRIC CO LTD

Transmit time interval structure for ambient wireless device communications

Methods, systems, and devices for wireless communication are described. A network device (e.g., a user equipment (UE), a network entity) may configure a transmit time interval (TTI) structure for ambient wireless device communications. The TTI structure may include a set of TTIs allocated for a set of ambient wireless devices, such as a first TTI allocated for a continuous waveform and a second TTI allocated for backscatter signals from the ambient wireless devices. A network device may send an indication of a TTI structure (e.g., a bitmap) to a set of ambient wireless devices. An ambient wireless device may receive a TTI structure and receive a continuous waveform in a first TTI. The ambient device may transmit the backscatter signal in the second TTI. In some cases, the ambient wireless device may transmit a backscatter signal to a second network device (e.g., a reader) different from the network device.
Owner:QUALCOMM INC

Communication method and device

The invention discloses a communication method and device. UE receives first information, the first information indicates a first resource, a second resource, a first MCS and a second MCS, the first resource corresponds to a first transmission unit, the second resource corresponds to a second transmission unit, the first MCS corresponds to the first transmission unit, the second MCS corresponds to the second transmission unit, and the first resource and the second resource belong to the same carrier on a frequency domain. And the same transmission time interval is located in the time domain. The UE transmits first data in the first resource, the first data being carried in the first transmission unit; and transmitting second data on the second resource, the second data being carried on the second transmission unit. In the embodiment of the invention, different transmission units can transmit through different resources, so that the transmission flexibility can be improved.
Owner:HUAWEI TECH CO LTD

Power transmission line monitoring method and device, electronic equipment, medium and product

The invention provides a power transmission line monitoring method and device, electronic equipment, a medium and a product, and the method comprises the steps: determining a to-be-used target communication device from a plurality of communication devices, and determining a shooting time interval according to the target communication device; acquiring shooting information corresponding to the power transmission line at every shooting time interval, and waking up the target communication device; the shooting information is sent to a target communication device, so that the target communication device transmits the shooting information to an inspection platform and enters a dormant state after transmission is completed, and different shooting time intervals are determined according to transmission characteristics of different target communication devices; the target communication device is awakened every shooting time interval and enters the dormancy device after transmission is finished, so that cooperation of a plurality of communication devices can be realized, the transmission stability can be improved, and the overall transmission efficiency can also be improved.
Owner:SHANDONG SENTER ELECTRONICS

File transmission method, device, equipment and storage medium

The present disclosure provides a file transmission method, apparatus, device, and storage medium, which can be applied to nodes in the fields of data processing technology and financial technology. The method includes: obtaining attribute information and transmission link information of a target file, wherein the transmission link information is determined based on the transmission path of the target file in the business operation and maintenance architecture; the attribute information of the target file includes content attribute information and data volume attribute information; inputting the data volume attribute information into a trained transmission prediction model, and outputting information on a predicted transmission time interval for the target file to be transmitted on the transmission path; determining priority information of the target file based on the transmission link information and content attribute information; generating a transmission strategy for the target file based on the priority information when the actual transmission time interval of the target file is greater than the predicted transmission time interval; and executing a transmission operation for the target file according to the transmission strategy.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA

Techniques for identifying falsely triggered semi-persistent scheduling grant in frequency division duplexing traffic associated with transmission time interval bundling

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive first configuration information indicating a transmission time interval (TTI) bundling resource. The UE may receive second configuration information indicating semi-persistent scheduling (SPS) resources. The UE may detect, during a communication session, an SPS trigger for using the SPS resources in a subframe that is misaligned with a periodicity associated with the TTI bundling resource. The UE may determine whether the SPS trigger is valid based at least in part on a number of TTI bundling grants subsequent to the detection of the SPS trigger that are misaligned with the subframe associated with the SPS trigger. Numerous other aspects are provided.
Owner:QUALCOMM INC

Packet assembling control method of data packet, storage medium and electronic equipment

The embodiment of the invention provides a data packet grouping control method, a storage medium and electronic equipment, and the method comprises the steps: extracting a current serial number of a received current data packet; in response to the fact that the current serial number is different from the first serial number and the difference value between the current serial number and the first serial number is smaller than a preset threshold value, a second serial number is updated based on the current serial number, the first serial number is the minimum serial number of the data packet to be recombined, and the second serial number is the next serial number of the maximum serial number of the received data packet; updating a count value of a preset counter to a difference value between the second serial number and the first serial number; in response to the fact that the counting value of the preset counter is larger than or equal to the counting threshold value, packaging operation is carried out on at least one first data packet, the first serial number is updated to be a second serial number, and the at least one first data packet comprises all data packets which are received and not recombined; the counting threshold is greater than or equal to the number of the data packets scheduled at the single transmission time interval.
Owner:CHINA SATENT NETWORK APPLICATION RESEARCH INSTITUTE CO LTD

Blind detection method, device, terminal and storage medium

A blind detection method and apparatus, a terminal, and a storage medium. The method comprises: according to system frame number (SFN) information, demasking physical broadcast channel (PBCH) information received by a synchronization signal / PBCH block (SSB) in a target beam direction in at least one synchronization signal period within one transmission time interval, so as to obtain at least one group of demasked sequences; determining a combined sequence according to the at least one group of demasked sequences; checking a decoding result of the combined sequence; and when the check succeeds, extracting a master information block (MIB) from the decoding result according to the SFN information, so as to complete blind detection of the PBCH information.
Owner:SANECHIPS TECH CO LTD

Short transmission time interval for sidelink feedback

Methods, systems, and apparatus for wireless communications are described. A sidelink message may be scheduled for a UE during a first short transmission time interval (TTI). A first short TTI and a second short TTI for sending a sidelink feedback message corresponding to the sidelink message may be shorter in duration than another, longer type of TTI. The UE may send automatic gain control information in a first symbol period of the second TTI, send the sidelink feedback message in a second symbol period of the second TTI (after the first symbol period of the second TTI), and switch from operating in a transmit mode to operating in a receive mode during a third symbol period of the second TTI (after the second symbol period of the second TTI).
Owner:QUALCOMM INC

Method and system for transmitting link state update packets

There is provided a method and system for transmitting link state update (LSU) packets containing new link state advertisements (LSAs). In some embodiments, the transmission of the LSU packet is based on the priority of the received LSAs and the status of a pacing timer. In the same or other embodiments, a control stack is generated for tracking the number of unacknowledged LSAs previously transmitted and the interface transmit time interval is adjusted based on the control stack.
Owner:HUAWEI TECH CO LTD

Flexible repetition of pusch mini-slots within a slot

The disclosure relates to a transmission device for transmitting data to a reception device in a communication system. The transmission device comprises circuitry which, in operation, allocates the data to a plurality of transmission time intervals, TTIs, respectively comprising a lower number of symbols than a slot and the plurality of TTIs including an initial TTI and one or more subsequent TTIs subsequent to the initial TTI, wherein the data allocated to each of the plurality of TTIs is the same, further allocates a demodulation reference signal, DMRS, to the initial TTI, and obtains a DMRS allocation for each of the subsequent TTIs indicating whether or not no DMRS is allocated to the respective TTI to be transmitted in addition to the data. The transmission device further comprises a transceiver which, in operation, transmits, within the slot, the data and DMRS in accordance with the DMRS allocation.
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

Non-periodic sounding reference signal transmission and triggering configuration

Methods, systems, and devices for wireless communication that support configuration of aperiodic sounding reference signal transmissions and triggers are described. A base station can transmit, within a first transmission time interval (TTI), a grant that triggers a user equipment (UE) to transmit an aperiodic sounding reference signal (A-SRS), and can identify offset information that indicates a TTI offset relative to the grant. The base station can determine a second TTI for the A-SRS based on the TTI offset. A UE can detect, within the first TTI, the grant that triggers the UE to transmit the A-SRS; identify the offset information that indicates the TTI offset relative to the grant; and determine a second TTI for transmitting the A-SRS based on the TTI offset. The UE can transmit the A-SRS in an SRS resource of the second TTI, and the base station can monitor the SRS resource of the second TTI for the A-SRS.
Owner:QUALCOMM INC

Electronic device, method, and non-transitory computer-readable storage medium for determining uplink transmission power

This electronic device may comprise at least one processor. The at least one processor is configured to: while an application for providing an interpretation service for a call, which is performed by using a communication circuit, is executed, transmit uplink voice data of a first language generated on the basis of a user's utterance; determine a transmission time interval for transmitting uplink voice data of a second language on the basis of generating the uplink voice data of the second language from the utterance of the first language; determine transmission power for transmitting the uplink voice data of the second language on the basis of the transmission time interval for transmitting the uplink voice data of the second language; and transmit the uplink voice data of the second language on the basis of the transmission power.
Owner:SAMSUNG ELECTRONICS CO LTD

Apparatus and method for time domain bandwidth part (TD-BWP) switching

Some aspects of this disclosure relate to apparatuses and methods for implementing time domain bandwidth part (TD-BWP) switch for balancing between the UE power consumption and a latency of the UE. For example, a UE can be configured to add a plurality of padding bits to a transport block (TB) to reach a predetermined slot capacity for one transmission time interval (TTI) associated with UE traffic in response to determining that a parameter associated with the UE traffic meets a condition. The UE can be further configured to transmit the TB over the TTI to the base station and receive a message from the base station. The UE is further configured to change a time domain bandwidth part (TD-BWP) based on the received message.
Owner:APPLE INC

Communication method and apparatus

A communication method and apparatus. The method comprises: a UE receives first information, wherein the first information indicates a first resource, a second resource, a first MCS, and a second MCS, the first resource corresponds to a first transmission unit, the second resource corresponds to a second transmission unit, the first MCS corresponds to the first transmission unit, the second MCS corresponds to the second transmission unit, and the first resource and the second resource belong to the same carrier in a frequency domain and are located at the same transmission time interval in a time domain; and the UE transmits first data on the first resource, the first data being carried in the first transmission unit; and transmits second data on the second resource, the second data being carried in the second transmission unit. In the embodiments of the present application, different transmission units can be transmitted by means of different resources, thereby improving the transmission flexibility.
Owner:HUAWEI TECH CO LTD

Uplink data channel repetitions using multiple slot transmit time intervals

Apparatus, methods, and computer-readable media for improving uplink data channel repetitions using multiple slot transmit time intervals are disclosed herein. An example method for wireless communication at a user equipment (UE) includes receiving scheduling downlink control information (DCI) indicating, in a time domain resource allocation (TDRA) field, a scaling parameter for a transport block size (TBS) of a physical uplink shared channel (PUSCH) transmission for transmission as PUSCH repetitions over a repetition unit comprising a plurality of single repetitions. The example method also includes transmitting the PUSCH repetitions with scaling based on the scaling parameter indicated in the scheduling DCI.
Owner:QUALCOMM INC

Method and apparatus for determining control channel unit, and storage medium

Embodiments of the present application provide a control channel unit determination method and device, and a storage medium, wherein the control channel unit determination method comprises: selecting part of resource unit groups in N resource unit groups to form a control channel unit, and forming a control channel unit by at least one of the following ways: for a physical downlink control channel (PDCCH) based on a demodulation reference signal (DMRS), when the mapping between a control channel unit (CCE) and a resource element group (REG) is distributed mapping, at least the following principle is satisfied: M REGs are equally spaced or discretely spaced in the frequency domain to form a CCE, wherein M is the number of REGs contained in K RBs in a transmission time interval, K is a positive integer, and N is a positive integer; for a PDCCH based on a cell reference signal (CRS), when the mapping between a CCE and a REG is distributed mapping, at least the following principle is satisfied: a group of REGs equally spaced or discretely spaced in the frequency domain form a CCE in a single symbol.
Owner:ZTE CORP

Method and apparatus for wireless communication

Methods and apparatus for wireless communication are disclosed. According to one embodiment, a network node assigns a first terminal device to one of a plurality of groups based on channel conditions reported by the first terminal device. Each of the plurality of groups corresponds to a different number of antenna branches of a radio component of the network node in an operating state for communication. The network node schedules a first transmission to the first terminal device in a transmission time interval (TTI) based on the assigned group of the first terminal device. The network node performs a first transmission to the first terminal device based on a result of the scheduling.
Owner:TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Method and apparatus for sensing object positioned at distance greater than or equal to that of communication coverage

An operational method of a first device (100) in a wireless communication system is presented. The method comprises the steps of: transmitting, in a first transmission time interval, a first signal related to communication by using a first resource on the basis of a first subcarrier spacing for communication; and transmitting, in the first transmission time interval, a second signal related to sensing by using a second resource on the basis of a second subcarrier spacing for sensing, wherein the second subcarrier spacing can be N times the first subcarrier spacing.
Owner:LG ELECTRONICS INC

Techniques for grant-less transmission in a full-duplex wireless communication system

Methods, systems, and devices for wireless communications are described. A first device may release uplink resources associated with a semi-persistent uplink transmission during a portion of a transmission time interval based at least in part on a condition. For example, the first device may determine that a buffer associated with the first device satisfies a buffer threshold (e.g., a threshold amount of temporarily stored uplink data) during a first time period. The buffer may temporarily store uplink data associated with the semi-persistent uplink transmission. Accordingly, the first device may transmit a feedback message to a second device that includes an indication that the first device skipped the semi-persistent uplink transmission based on releasing the uplink resources.
Owner:QUALCOMM INC

Hardware acceleration for frequency domain scheduler in wireless networks

Methods and apparatuses are provided for hardware acceleration for a frequency domain scheduler. An example method includes receiving an instruction from a processor core to process a job for determining an allocation of a set of resources to one or more users, the set of resources corresponding to a transmission layer in a transmission time interval; processing the job by determining which of the one or more users is to be allocated on each of the respective resources in the set based on a first array stored in a memory associated with a metric of each of one or more users for each of the resources in the set, and a second array stored in the memory associated with a buffer size of each of the one or more users; and in response to successfully completing the job, sending an indication of the determined allocation to the processor core.
Owner:NOKIA SOLUTIONS & NETWORKS OY

Method and apparatus for control information of sidelink reference signal in wireless communication system

A method and apparatus for control information of a sidelink reference signal in a wireless communication system are provided. The apparatus receives a configuration of a sidelink resource pool for a sidelink data transmission and a sidelink reference signal transmission. The apparatus determines to perform the sidelink reference signal transmission in a first transmission time interval of the sidelink resource pool, wherein the sidelink reference signal transmission is associated with a destination identity and a source identity, and the sidelink reference signal transmission has a highest priority among one or more pending sidelink reference signals and one or more sidelink logical channels with pending sidelink data. The apparatus generates a first sidelink data packet based on a first sidelink logical channel with first pending sidelink data, wherein the first sidelink data packet is associated with the destination identity and the source identity. The apparatus performs the sidelink reference signal transmission and the sidelink data transmission for transmitting the first sidelink data packet in the first transmission time interval.
Owner:ASUS TECH LICENSING INC

Short physical uplink shared channel arrangement

Various communication systems may benefit from efficient communications. For example, low latency long term evolution (LTE) systems may benefit from a short physical uplink shared channel (PUSCH) arrangement. A method may include operating a user equipment to follow a shortened transmission time interval. The shortened transmission time interval can be an integer number, L, of symbols in length. The method can also include sending a demodulation reference signal in at least a first symbol of the L symbols of the shortened transmission time interval.
Owner:NOKIA TECHNOLOGIES OY +1

Method, apparatus and computer program

User equipment (UE) sends to an access node a message 800, e.g. scheduling request, buffer status report or radio resource control (RRC) signalling, for requesting allocation of physical uplink shared channel (PUSCH) resources and receives from the access node, based on the sent message, information 802 indicating resources allocated for PUSCH transmissions, information 810 indicating that a subset of resources allocated for uplink reference signal transmission are to be muted and information indicating a transmission power for non-muted resources and / or a transmission power for the resources allocated for the PUSCH transmissions. UE sends to the access node, based on the information indicating the transmission power for non-muted resources and / or a transmission power for the resources allocated for the PUSCH transmissions, one or more PUSCH transmissions 812 using the resources allocated for the PUSCH transmissions and one or more uplink reference signal transmissions 812 using non-muted resources allocated for uplink reference signal transmission. Allocated resources may comprise resource elements, each resource element being associated with a subcarrier frequency and transmission time interval.
Owner:NOKIA TECHNOLOGIES OY

Advanced LAA scheduling for multi-point subset transmission in shared cells

Systems and methods are disclosed relating to implementing a shared cell configuration in a heterogeneous deployment of, e.g., a License Assisted Access (LAA) network. In some embodiments, a method of operation of a processing system to schedule downlink transmissions to wireless devices in a shared cell in an unlicensed frequency spectrum, the shared cell being served by multiple Reception / Transmission (R / T) points, comprises receiving independent Clear Channel Assessment (CCA) decisions from the R / T points serving the shared cell, each CCA decision from each R / T point being indicative of whether a CCA succeeded or failed at the R / T point. The method further comprises performing scheduling for one or more upcoming Transmit Time Intervals (TTIs) based on the CCA decisions received from the R / T points serving the shared cell.
Owner:TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

V2x HARQ process management

A user device, UE, for a wireless communication system is described. The wireless communication system includes a plurality of user devices, UEs. The UE communicates with one or more transmitting UEs using a sidelink, supports a certain number of HARQ processes, and buffers one or more transmissions for each HARQ process. During a unicast communication with a transmitting UE using the sidelink, the UE receives from the transmitting UE a transmission during a transmission time interval, the transmission associated to control data, e.g. SCI, including a HARQ process ID, buffers the received transmission for the HARQ process, and combines the buffered transmissions prior to decoding. In case a successfully identified transmission is not buffered, the UE indicates to the transmitting UE that the transmission is not buffered at the UE.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV