Abstract: Disclosed are a method for transmitting and receiving a sounding reference signal (SRS) in a wireless communication system, and an apparatus therefor.

Abstract: A wireless access node serves a wireless User Equipment (UE) over wireless communication links that use a same time and frequency resource block. In some examples, the wireless communication links comprise Multiple Input Multiple Output (MIMO) layers. In the wireless access node, a baseband unit determines backhaul downlink quality for backhaul downlinks. Based on the backhaul downlink quality, the baseband unit selects a number of the wireless communication links for the wireless UE that will use the same time and frequency resource block. The baseband unit receives user data from the backhaul downlinks and transfers the user data to a radio. The radio wirelessly transfers the user data to the wireless UE over the selected number of the wireless communication links using the same time and frequency resource block.

Abstract: Among other things, aspects, features, and implementations of wireless mesh networks and wireless mesh network devices are described.

Abstract: Systems and methods are provided for handling different timing advance (TA) adjustment delays corresponding to different transmission time intervals (TTIs) from different serving cells under carrier aggregation or dual connectivity. A user equipment (UE) selects and implements one TA adjustment delay even if two or more serving cells transmit with different TTIs. In one embodiment, the UE uses a predetermined TA adjustment delay for each of a plurality of TA commands received from serving cells with different TTI lengths. In another embodiment, the UE uses a TA adjustment delay that is a maximum value of the TA adjustment delays for the TTIs from the different serving cells.

Abstract: Technology for an apparatus of a user equipment (UE), operable to perform a random-access procedure using a UE-specific control resource set (CORESET) is disclosed. The UE can decode a 5 message, received from the next generation node B (gNB), to perform a contention free random-access (RA) procedure. The UE can encode a random-access channel (RACH) preamble for transmission to the gNB using one or more UE-specific CORESET. The UE can decode a random-access response (RAR) received from the gNB in response to the RACH preamble transmission using the one or more UE10 specific CORESET.

Abstract: The disclosure provides a method and a device in a User Equipment (UE) and a base station for wireless communication. The UE transmits a first radio signal, wherein the first radio signal occupies W frequency unit(s) in frequency domain, a transmit power of the first radio signal is a first power, the first power is uncorrelated with the W, the W is a positive integer, and the W is configurable. The method in the disclosure makes better use of special channel characteristics of air communication to optimize the design of reference signals, reduces the power consumption of an air terminal while ensuring a channel estimated quality, and reduces interferences to neighbor cells or to ground users in neighbor cells.

Abstract: Some of the example embodiments are directed towards a base station for determining a control timing configuration in order to provide a subframe timing setting for configuring downlink HARQ-ACK control timing for a cell serving a user equipment in a multiple cell communications network. The user equipment is served by a TDD based cell and a FDD based cell. Some example embodiments are directed towards user equipment for determining the control timing configuration as discussed above.

Abstract: Provided is a synchronization method and apparatus in a wireless communication system. A synchronization method according to an aspect of the present disclosure may include: receiving a first synchronization signal and a second synchronization signal; determining a priority order of the first synchronization signal and the second synchronization signal; and performing synchronization based on a synchronization signal having a higher priority between the first synchronization signal and the second synchronization signal.

Abstract: A data transmission method, applied to a base station, includes: acquiring target information for indicating transmission direction from pre-configured indication unit allocation information, the target information for indicating transmission direction being configured for a terminal to determine transmission directions of uplink data transmission on an uplink slot and downlink data transmission on a downlink slot in a frequency division duplexing (FDD) mode; and sending the target information for indicating transmission direction to the terminal, to cause the terminal to determine respective transmission directions of the uplink slot and the downlink slot in the FDD mode according to the target information for indicating transmission direction.

Abstract: Scheduling full-duplex transmissions includes configuring adjacent time slots of an air interface resource with different ratios of uplink portions, downlink portions, and flexible portions, scheduling transmissions in each adjacent time slot based on whether or not the transmissions are latency-sensitive or delay-sensitive or control transmissions. The uplink portions, downlink portions, and flexible portions comprise symbols within time slots of a subframe, and can vary based on a numerology. The flexible portions are symbols configured to simultaneously transmit uplink data and downlink data.

Abstract: Random Access (RA) formats are defined for NB-IoT operation in TDD mode. The formats are defined to allow use of the legacy LTE subframe configurations for TDD. The formats specify a predetermined, even number P of symbol groups composing a RA preamble, wherein each symbol group comprises a Cyclic Prefix (CP) and a number X of symbols. The P symbol groups are divided into symbol group sets fitting into 1, or 2, or 3 contiguous uplink subframes, each comprising at least two symbol groups transmitted back-to-back (i.e., contiguously in time), and at least two symbol group sets are transmitted non-contiguously in time across a number of uplink subframes over which the RA preamble is transmitted. The number of symbol groups in a set can be two or three, and the number of symbol groups is four or six, respectively. Symbol groups within a set are transmitted on adjacent uplink subframes. Five format options are defined, which map to various of the LTE TDD configurations.

Abstract: Embodiments of the present disclosure relates to the communication processes in a FDD wireless communication system based on short TTIs. According to one embodiment of the present disclosure, there provide a method for communication by a base station. The method comprise: transmitting, to a user equipment, downlink control information in a downlink TTI of a mth downlink subframe which supports two or more downlink TTIs; and receiving, from the user equipment, uplink data scheduled by the downlink control information carried in a mth or (m+1)th uplink subframe which supports two or more uplink TTIs. The downlink control information transmitted in at least one of downlink TTIs supported by downlink subframes is arranged to schedule uplink data transmission in at least two of uplink TTIs supported by uplink subframes. In the other aspects of the present disclosure, there also provides methods for communication by a user equipment and corresponding apparatuses.

Abstract: Embodiments of a User Equipment (UE), generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive a narrowband physical downlink control channel (NPDCCH) that includes an uplink scheduling parameter. The UE may determine an uplink scheduling delay for transmission of a narrowband physical uplink shared channel (NPUSCH) in accordance with time-division duplexing (TDD). The uplink scheduling delay may be based on a sum of a predetermined first number of subframes and a variable second number of subframes. The second number of subframes may be based on a window of variable size that starts when the first number of subframes has elapsed since reception of the NPDCCH, and ends when a number of uplink subframes has elapsed since the start of the window. The number of uplink subframes may be indicated by the uplink scheduling parameter.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station and while operating in a dual connectivity mode, an uplink grant in a first subframe of a set of subframes. The uplink grant may schedule transmission of uplink data. The UE may determine a second subframe of the set of subframes to transmit the uplink data and a third subframe of the set of subframes to monitor for feedback associated with transmission of the uplink data. The second subframe and the third subframe may be determined based on combinations of a primary cell time division duplex (TDD) uplink-downlink (UL-DL) configuration and a DL-reference UL-DL configuration. each of the combinations may have at least three uplink transmission subframes or three downlink monitoring subframes within a ten-subframe cycle. The UE may thus perform wireless communications in accordance with the transmission timelines.

Abstract: The present invention relates to: a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present invention can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, security and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. In addition, the purpose of the present invention is to provide an operating method and device of a terminal and a base station, which are for transmitting uplink control information in a communication system.

Abstract: This disclosure provides systems, methods and apparatuses for a selection of one or more transmission and reception points (TRPs) within a multi-TRP system. In one aspect, a user equipment (UE) may transmit an indication of the selected TRPs and an indication of one or more beams that the selected TRPs may use to communicate with the UE based on a mismatch between a default operating frequency (DOF) of each TRP within the multi-TRP system and a DOF of the UE. For example, the UE may receive an indication of a DOF of each antenna port of the TRPs within the multi-TRP system and the UE may compare the indicated DOFs with a DOF of each antenna module of the UE. The UE may select to communicate with TRPs and select one or more ports that the selected TRPs may use to communicate with the UE based on the comparison.

Abstract: A user terminal is disclosed including a transmitting/receiving section that performs transmission and reception by Time Division Duplex (TDD) by using a DL/UL frequency band pair that has a UL frequency band and a DL frequency band configured in a frequency direction in a carrier; and a control section that performs control to switch between a first DL/UL frequency band pair and a second DL/UL frequency band pair, and performs the transmission and the reception. In another aspect, a radio communication method of a user terminal is also disclosed.

Abstract: Provided are a method and device for receiving and sending a reference signal and a storage medium, the method for receiving includes steps described below. A reference signal resource used for sending the reference signal is determined; and the reference signal sent by using the reference signal resource is received. And the method for sending includes steps described below, a reference signal resource used for sending the reference signal is determined; and the reference signal is sent by using the determined reference signal resource.

Abstract: It is disclosed a network node, a communication device and methods therein, for scheduling of uplink resources in multiple time instances and transmitting in accordance with the scheduled UL resources. By including an indicator in an UL grant comprising an UL resource allocation, the indicator indicates that, for at least one UL time instance of the multiple time instances, at least one UL resource is excluded from, or added to, the UL resource allocation of the UL grant.

Abstract: A radio communication method and device are provided. The method includes: performing a compression processing on uplink control information to be transmitted in a target time unit, wherein the compression processing includes a compression processing performed on Coding Block Group (CBG)-based feedback response information included in the uplink control information; and transmitting the uplink control information after the compression processing in the target time unit.

Abstract: Embodiments described herein relate to a method of selecting a cell for communication over a network, the method comprising: determining a round trip delay (RTD) measurement from a device to each of a plurality of base stations, each of the plurality of base stations being in a respective one of a plurality of cells; ranking the plurality of cells based at least in part on the RTD measurements; selecting the highest-ranked cell; and initiating attachment to the selected cell.

Abstract: Procedures for using a transmission configuration indication (TCI) state in wireless communications are described. A base station may send one or more configuration parameters indicating a plurality of cells to be updated with a same TCI state. A wireless device may perform, via the plurality of cells and using one or more parameters associated with the TCI state, at least one of transmission or reception.

Abstract: A method and a device for detecting slot format indication, and a method and a device for configuring slot format indication are provided. The method for detecting slot format indication is applied to a terminal and includes: obtaining a bit length of SFI index information of a target cell or a target carrier and a slot format configuration set corresponding to the bit length; detecting the SFI index information of the target cell or the target carrier; and determining a slot format configuration corresponding to the detected SFI index information based on the detected SFI index information and the slot format configuration set corresponding to the bit length of the detected SFI index information.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention provides a method by which a terminal transmits uplink control information, comprising receiving uplink scheduling information from a base station; determining, among a plurality of slots, at least one slot for transmitting the uplink control information, based on the uplink scheduling information; and transmitting the uplink control information through the determined at least one slot.

Abstract: Techniques for transmitting hybrid automatic repeat request (HARQ) feedback by narrowband Internet-of-Things (NB-IoT) devices are provided. NB-IoT user equipment (UE) can transmit HARQ feedback in response to a narrowband physical downlink shared channel (NPDSCH) received over a downlink (DL). NB-IoT UEs can transmit the responsive HARQ feedback over a narrowband physical uplink shared channel (NPUSCH) or a narrowband physical uplink control channel (NPUCCH). Options for defining the physical structures of the NPUCCH and NPUSCH and user multiplexing on the uplink (UL) are provided. Determination of an UL resource allocation by determining resources in time, frequency, and the code domain for the HARQ feedback transmissions are also provided. Higher level signaling and/or indications provided in downlink control information (DCI) can be used to determine the time, frequency, or code domain resources.

Abstract: The present disclosure relates to channel transmission methods, base stations, and terminal devices. One example method includes receiving a first channel from a network device, determining a frame structure used between the network device and a terminal device according to relationship between a transmission parameter set of the first channel and the frame structure, and communicating with the network device according to the frame structure.

Abstract: The present invention discloses a data transmission method and apparatus. The method comprises: determining on a terminal side whether there is an overlap between a transmission time of an uplink channel which transmits using a first transmission time interval length and a transmission time of an uplink channel which transmits using a second transmission time interval length; when there is an overlap, then selecting a part of the uplink channel for transmission according to a predetermined rule, and abandoning the remaining uplink channel for transmission or puncturing the transmission of the remaining uplink channel. On a network side, determining that the terminal selects one type of uplink channel for transmission according to the predetermined rule, and abandons another type of uplink channel for transmission or punctures the transmission of another type of uplink channel.

Abstract: The present disclosure provides a new radio base station for a mobile telecommunications system. The new radio base station has a circuitry configured to communicate with at least one user equipment and at least one LTE base station and to establish a new radio cell. The circuitry is further configured to transmit a time division duplexing configuration of the new radio cell to the LTE base station for identifying, based on the received time division duplexing configuration, a coexistence and intermodulation influence on an LTE receiver of the at least one user equipment.

Abstract: Systems and methods for determining and utilizing downlink Hybrid Automatic Repeat Request (HARQ) timing when using short Transmit Time Intervals (sTTIs) are disclosed. In some embodiments, a method of operation of a wireless device in a cellular communications network comprises determining a downlink HARQ timing k for transmission of downlink HARQ feedback for a downlink transmission received in a downlink sTTI nDL based on a Time Division Duplexing (TDD) uplink/downlink configuration and transmitting, in an uplink sTTI nDL+k, downlink HARQ feedback for the downlink transmission received in the downlink sTTI nDL. In this manner, downlink HARQ timing is determined and utilized when using sTTIs.

Abstract: A network device for a communications network includes a port configured to transmit data to the network at a maximum transmit data rate. The device also includes a transmit buffer configured to buffer data units that are ready for transmission to the network, and a packet buffer configured to buffer data units before the data units are ready for transmission. The packet buffer is configured to output data units at a maximum packet buffer transmission rate faster than the maximum transmit data rate. The device includes a rate controller configured to control a transmission rate of data from the packet buffer to the transmit buffer so that averaged over a period, the transmission rate from the packet buffer to the transmit buffer is at most equal to the maximum transmit data rate, while allowing the transmission rate, at one or more time intervals, to exceed the maximum transmit data rate.

Abstract: A radio frequency module includes: a module board including a first principal surface and a second principal surface on opposite sides of the module board; an antenna connection terminal; a diplexer connected to the antenna connection terminal and including at least a first inductor which is a chip inductor; a transmission power amplifier; and a first circuit component disposed on a transmission path connecting the diplexer and the transmission power amplifier. The first inductor is disposed on the first principal surface, and one of the transmission power amplifier and the first circuit component is disposed on the second principal surface.

Abstract: A DL control channel candidate can be decoded. A determination can be made for which DL OFDM symbol the decoded DL control channel candidate is received in. A determination can be made for a DL resource assignment from the decoded DL control channel candidate. Data can be received based on the DL resource assignment. A determination can be made for a time-frequency resource for transmitting a HARQ-ACK at least based on the determined DL OFDM symbol. The HARQ-ACK can be transmitted in the determined time-frequency resource. The transmitted HARQ-ACK can correspond to the received data.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that signaling associated with a resource allocation is associated with a service type. The UE may identify a time-domain resource, for a transmission associated with the service type, in connection with determining that the signaling associated with the allocation is associated with the service type. Numerous othNo errors found.er aspects are provided.

Abstract: A method for transmitting a sounding reference symbol (SRS) by a terminal in a wireless communication system may comprise the steps of: receiving, from a base station, SRS configuration information including information indicating an SRS sequence type for generation of an SRS sequence of the terminal; generating the SRS sequence on the basis of the indicated SRS sequence generating type; and transmitting an SRS, to which the generated SRS sequence has been applied, from a corresponding resource to the base station.

Abstract: Embodiments of the present application disclose an information transmission method, a terminal device and a network device. The method comprises: a terminal device receiving a first synchronization signal block and a physical downlink control channel sent by a network device in a first time slot or a first mini-slot, wherein the first time slot or the first mini-slot comprises N symbols, the first synchronization signal block occupies M consecutive symbols in the first time slot or the first mini-slot, the first synchronization signal block comprises a synchronization signal and a physical broadcast channel, M and N are positive integers, and M?N.

Abstract: This application provides a method and device for transmitting data. This is advantageous to improving data transmission efficiency. The method includes: sending, by a first device, indication information to a second device, where the indication information indicates a first sending manner for a first transport block, and the first sending manner is one of at least two sending manners; and sending, by the first device, the first transport block based on the first sending manner, or receiving, by the first device, the first transport block based on the first sending manner.

Abstract: The present invention relates to: a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present invention can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, security and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. In addition, the purpose of the present invention is to provide an operating method and device of a terminal and a base station, which are for transmitting uplink control information in a communication system.

Abstract: A device includes circuitry that dynamically changes an uplink/downlink configuration of a time division duplex (TDD) carrier. The circuitry notifies a terminal device of a radio resource for device-to-device communication appropriate for the uplink/downlink configuration. The radio resource is a radio resource of at least one uplink subframe of the uplink/downlink configuration.

Abstract: The disclosure relates to a method of operating a wireless device. The method comprises receiving (10), from a network node, control information indicating a timing of a scheduled transmission or reception. The method further comprises determining (20) at least one slot or symbol for the scheduled transmission or reception based on the control information indicating the timing, wherein the determining is dependent on whether the wireless device is configured with a semi-static time division duplex, TDD, uplink-downlink allocation or not. The method also comprises performing (30) the scheduled transmission or reception in the determined at least one slot or symbol.

Abstract: The present application discloses a downlink channel receiving method and a terminal device, including: receiving, by a terminal device, first downlink authorization information and second downlink authorization information that are sent by a network device, where the first downlink authorization information is used to indicate that the terminal device receives a first physical downlink shared channel PDSCH in a first time unit, the second downlink authorization information is used to indicate that the terminal device receives a second PDSCH in a second time unit, and at least one symbol of the first time unit and at least one symbol of the second time unit overlap in a time domain; determining, by the terminal device, according to a RNTI used to scramble the first downlink authorization information and the second downlink authorization information, a PDSCH that is preferentially decoded from the first PDSCH and the second PDSCH.

Abstract: Disclosed are an uplink control information sending method and apparatus, and a terminal. The method comprises: with respect to a terminal supporting P minimum HARQ timings, determining a downlink subframe set S(n) corresponding to the P minimum HARQ timings, wherein S(n) is a union set of all sets ?(n,Ki); and the terminal sending, on an uplink subframe n, the set S(n) or a HARQ-ACK corresponding to transmission data in the downlink subframe set ?(n,Ki).

Abstract: A downlink Hybrid Automatic Repeat Request (HARQ) feedback method is provided, and includes: determining whether a currently used frame structure needs to be reconfigured; determining an uplink subframe for implementing a downlink HARQ feedback corresponds to each downlink subframe according to the currently used frame structure, when no reconfiguration is needed; determining an uplink subframe for implementing the downlink HARQ feedback corresponds to each downlink subframe in a last radio frame before the reconfiguration time point, when the reconfiguration is needed, according to a first frame structure used before a reconfiguration time point and a second frame structure to be used; determining an uplink subframe for implementing the downlink HARQ feedback corresponds to each downlink subframe in a last radio frame before the reconfiguration time point; when receiving downlink data sent by a base station on any downlink subframe, sending a HARQ feedback message for the downlink data.

Abstract: Certain aspects of the present disclosure relate generally to wireless communications systems, and more particularly, to techniques that may help reduce or eliminate ambiguity in acknowledging multiple physical downlink shared channel (PDSCH) transmissions in a single transmission time interval (TTI). According to aspects, a codebook with fewer fields than a number of PDSCH candidates may be used to provide acknowledgement/negative acknowledgement (ACK/NACK) feedback.

Abstract: This disclosure disclose a terminal control method and a terminal. The method may include: when detecting that the front-facing camera is in a low power consumption mode, sending, by the second processor, a first message to the first processor, where the first message indicates that the front-facing camera is in the low power consumption mode; after receiving the first message, controlling, by the first processor, the front-facing camera to collect a low-power-consumption-mode image in the low power consumption mode; receiving, by the first processor, the low-power-consumption-mode image and identifying whether there are a predetermined quantity of consecutive low-power-consumption-mode images that include preset characteristic information, where the preset characteristic information is characteristic information indicating that a user currently needs to use the terminal; and adjusting, by the first processor, brightness of a screen of the terminal according to an identification result.

Abstract: The present disclosure provides a method and a device for transmitting information in a wireless communication system. In the method for transmitting information in a wireless communication system provided by embodiments of the present disclosure, a granularity is provided, when uplink (UL) and downlink (DL) adopt different numerologies, and a corresponding timing is provided by taking the granularity as a unit, which provides a basis for scheduling design of 5G New Radio (NR).

Abstract: An optical transmission system includes ground stations; optical-terminating devices; a traffic-monitoring unit that detects a traffic amount of the uplink signal transmitted in a time-division multiplexing manner for each of the optical-terminating devices; and a bandwidth allocation calculation unit that estimates one optical-terminating device of the optical-terminating devices connected to one ground station of the ground stations having a cell where the moving object is positioned on the basis of the traffic amount, and calculates a first allocation amount of a bandwidth allocated to the uplink signal of the one optical-terminating device connected to the one ground station having the cell where the moving object is positioned and a second allocation amount of a bandwidth allocated to the uplink signal of another optical-terminating device of the optical-terminating devices connected to another ground station of the ground stations having a cell adjacent to the cell where the moving object is positioned.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform a random access channel (RACH) procedure with a base station. The UE may receive a message configuring a RACH preamble occasion and an uplink data occasion. The message may be a radio resource control (RRC) message or a system information (SI) message. In some cases, the UE may determine if the RACH preamble occasion, the uplink data occasion, or both are restricted for cancellation based on the message. The UE may determine when to monitor a downlink control channel for dynamic scheduling based on determining which occasions are restricted for cancellation and may transmit a RACH message based on monitoring—or not monitoring—the downlink control channel for dynamic scheduling preempting a RACH occasion. In some other cases, a base station may schedule transmissions to not overlap with configured RACH occasions.

Abstract: The present disclosure provides an acknowledgment message resource allocation method applicable to an NB-IoT TDD cell, and a corresponding base station and corresponding user equipment for performing the method. The user equipment according to an embodiment of the present invention includes: a receiving unit, configured to receive allocation information of acknowledgment message transmission resources, the allocation information including offset indication information instructing an offset j0 of a start time of the acknowledgment message transmission resources with respect to a reference time, and the offset j0 instructing an offset expressed by a number of NB-IoT uplink slots; and a transmitting unit, configured to perform acknowledgment message transmission based on the allocation information.

Abstract: Provided are a method for transmitting information and a device. The method comprises: a receiving end device receiving, within a first time unit, first information sent by a sending end device; and the receiving end device sending, within a second time unit, second information corresponding to the first information to the sending end device, wherein the duration of the first time unit is different from that of the second time unit. By means of the method for transmitting information in the embodiments of the present invention, when different transmission time intervals are used for an uplink and a downlink or a plurality of types of transmission time intervals are used for a communication system, rational scheduling and a time sequence fed back can be determined for devices at a receiving end and a sending end so as to ensure normal transmission of the information.

Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications network may set priorities for cell groups in dual connectivity. A higher priority cell group may reserve slots and indicate the reserved slots to the lower priority cell group, for example by a backhaul connection. The high priority cell group may also indicate additional, non-reserved slots, which the lower priority cell group may reserve or use for scheduling. One of the cell groups may transmit a slot format indication (SFI) to a user equipment (UE) in the dual connectivity to indicate the slot reservations. In some cases, a hybrid automatic repeat request (HARQ) timing parameter may be based on a number of reserved slots. In some cases, power control may be varied based on whether the UE is capable of simultaneous uplink and downlink transmission.