Abstract: Embodiments of the present disclosure provide a solution for transmission of UCI. A method for communications comprises generating, at a terminal device, a value corresponding to information bits in UCI. The method also comprises generating a sequence indicating the UCI based on the value. The method also comprises transmitting the sequence to a network device.

Abstract: Embodiments of the present disclosure relate to devices, methods and computer readable storage media of HARQ feedback for multiple data channels scheduled by a single DCI. The method comprises receiving, at a terminal device, control information from a network device; in accordance with a determination that transmissions of a plurality of transport blocks from the network device to the terminal device on a set of data channels are scheduled by the control information, determining a control channel for transmitting Hybrid Automatic Repeat Request, HARQ, feedback information associated with the plurality of transport blocks; and transmitting the HARQ feedback information via the control channel to the network device. In this way, the enhancement on HARQ-ACK feedback mechanism for terminal device in a case when multiple TBs/independent PDSCHs are scheduled by a single DCI can be reached, which may alleviate possible PUCCH collisions and provide more flexibility.

Abstract: Embodiments of the present disclosure relate to methods, devices and apparatuses of processing beam failure of a secondary cell at a terminal device and a network device respectively. In an embodiment of the present disclosure, the terminal device is serviced in a primary cell and a secondary cell on separate beams, and the secondary cell operates in a self-scheduling mode. The method may include transmitting, on an uplink control channel of the primary cell, a beam failure recovery request of the secondary cell, in response to detection of a beam failure in the secondary cell; and receiving a response to the beam failure recovery request of the secondary cell on a downlink control channel of the primary cell, wherein the response is configured to indicate a transmission configuration indication for a subsequent transmission.

Abstract: Embodiments of the present disclosure provide a solution for scaling time for performing uplink and downlink transmissions. In a method for communications, a network device obtains a capability indicator of a terminal device. The network device determines a target scheduling scheme for the terminal device based on the capability indicator. The network device transmits information associated with the target scheduling scheme to the terminal device. The information associated with the target scheduling scheme causes the terminal device to perform uplink and downlink transmissions based on the target scheduling scheme. Embodiments of the present disclosure provides a more flexible and adaptive configuration and scheduling manner, and thereby improving communication performances and reducing the cost of terminal devices.

Abstract: Embodiments of the present disclosure relate to communication. According to embodiments of the present disclosure, if an expiration of a data inactivity timer occurs during a handover, a terminal device maintains in a RRC connected state. The terminal device releases a link with the source network device. Further, the terminal device is able to ignore the expiration of the data inactivity timer during the handover. In this way, the impact of data inactivity of the source network device is properly handled.

Abstract: Embodiments of the present disclosure provide a solution for coverage enhancement. In a method for communication, a terminal device receives, from a network device, information on an inferring relation between a first channel associated with a first slot and a second channel associated with a second slot. The terminal device determines, based on the information, whether the first and second channels are to be inferable from each other. In accordance with a determination that the first and second channels are to be inferable from each other, the terminal device performs communications with the network device on the first and second channels based on the inferring relation. Embodiments of the present disclosure effectively enhance coverage of communications, thereby improving communication performance.

Abstract: Embodiments of the present disclosure relate to methods, devices and apparatus of resource mapping for data transmission and of data receiving. In an embodiment of the present disclosure, a carrier frequency band for the data transmission is divided into a plurality of sub-bandwidths, and the method may include mapping resource elements for the data transmission in an order of sub-bandwidths and mapping, in each of the plurality sub-bandwidths, the resource elements first in an order of frequency domain and then in an order of time domain. With embodiments of the present disclosure, new radio access system with wider bandwidth could co-exist well with other communication on unlicensed band like WiFi.

Abstract: Embodiments of the present disclosure relate to methods, devices and apparatus of resource mapping for data transmission and of data receiving. In an embodiment of the present disclosure, a carrier frequency band for the data transmission is divided into a plurality of sub-bandwidths, and the method may include mapping resource elements for the data transmission in an order of sub-bandwidths and mapping, in each of the plurality sub-bandwidths, the resource elements first in an order of frequency domain and then in an order of time domain. With embodiments of the present disclosure, new radio access system with wider bandwidth could co-exist well with other communication on unlicensed band like WiFi.

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media of communication. A method of communication implemented by a terminal device comprises generating, in an inactive state, a first control element of a media access control layer, the first control element carrying a first identity of the terminal device; and transmitting, to a network device, the first control element and uplink data. The method of communication implemented by a network device comprises receiving the first control element and uplink data from the terminal device; and transmitting the uplink data to a core network element. In this way, small data transmission can be achieved in an inactive state of the terminal device with reduced signaling overhead.

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A method of communication comprises determining, at a terminal device, whether first paging occasion information of a first paging overlaps with second paging occasion information of a second paging; and in response to the first paging occasion information overlapping with the second paging occasion information, transmitting an indication of paging collision between the first paging and the second paging to a network device associated with the first paging. In this way, the solving of the paging collision issue can be facilitated at RAN side, and low latency and high efficiency can be achieved.

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication on unlicensed band. In example embodiments, a method includes determining, at a terminal device, a time interval preceding a start symbol for uplink transmission. The method further includes determining, based on a first signal generating operation for the start symbol, a second signal generating operation for the time interval. The method further includes transmitting, to a network device over the time interval, a signal generated based on the second signal generating operation.

Abstract: Processes and systems for correlating well log data sets from well logging passes within a well bore. In some embodiments, a process for well log depth matching can include normalizing a first well log from a first logging pass obtained within a well bore and a second well log from a second logging pass obtained within the well bore, performing a pre-shift, performing feature picking to identify one or more features along the second well log, performing normalized cross-correlation based optimization between the first well log and the second well log to match the one or more features along the second well log to the same one or more features of the first well log and generating a shift table for depth shifting the one or more features of the second well log and the first well log.

Abstract: Processes and systems for correlating well log data sets from well logging passes within a well bore. In some embodiments, a process for well log depth matching can include normalizing a first well log from a first logging pass obtained within a well bore and a second well log from a second logging pass obtained within the well bore, performing a pre-shift, performing feature picking to identify one or more features along the second well log, performing normalized cross-correlation based optimization between the first well log and the second well log to match the one or more features along the second well log to the same one or more features of the first well log and generating a shift table for depth shifting the one or more features of the second well log and the first well log.

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for data transmission during simultaneous connectivity based handover. A method of communication comprises in response to a second connection being established between a second network device and a terminal device having a first connection with a first network device, determining, at the first network device, a first set of SDUs to be transmitted by the second network device to the terminal device; determining first information regarding a SN assigned to each of the first set of SDUs and a HFN associated with the SN; and transmitting the first set of SDUs and the first information to the second network device. The method further comprises receiving, at the second network device, the first set of SDUs and first information; and transmitting the first set of SDUs to the terminal device based on the first information.

Abstract: A method for determining properties of a laminated formation traversed by a well or wellbore employs measured sonic data, resistivity data, and density data for an interval-of-interest within the well or wellbore. A formation model that describe properties of the laminated formation at the interval-of-interest is derived from the measured sonic data, resistivity data, and density data for the interval-of-interest. The formation model represents the laminated formation at the interval-of-interest as first and second zones of different first and second rock types. The formation model is used to derive simulated sonic data, resistivity data, and density data for the interval-of-interest. The measured sonic data, resistivity data, and density data for the interval-of-interest and the simulated sonic data, resistivity data, and density data for the interval-of-interest are used to refine the formation model and determine properties of the formation at the interval-of-interest.

Abstract: Embodiments of the present disclosure relate to method, device and computer readable medium for physical random access channel sequence generation. In example embodiments, a method includes determining an index of a cyclic shift for a root sequence. The method further includes determining a value of the cyclic shift based on a mapping between indices and cyclic shift values. The method further includes generating a random access preamble based on the root sequence and the value of the cyclic shift.

Abstract: Embodiments of the present disclosure relate to method, device and computer readable medium for contention window adjustment. In example embodiments, a method includes selecting, at least from first transmissions in a first time interval, a set of reference transmissions based on occupancy of a set of subbands by the first transmissions, clear channel assessment being performed on the set of subbands. The method further includes determining an unsuccessful reception ratio based on reception states of the set of reference transmissions. The method further includes determining, based on the unsuccessful reception ratio, an adjustment on a contention window for a second transmission in a second time interval after the first time interval.

Abstract: The subject disclosure relates to the interpretation of borehole sonic data using machine learning. In one example of a method in accordance with aspects of the instant disclosure, borehole sonic data is received, and machine learning is used to interpret the borehole sonic data.

Abstract: Embodiments of the present disclosure relate to method, device and computer readable medium for hybrid automatic repeat request (HARQ) feedback. The method comprises receiving, from a network device, first control information at least comprising first channel indices for a first group of data channels and second channel indices for a second group of data channels, the first group of the data channels being at least part of a first set of data channels scheduled for data transmission from the network device to the terminal device and the second group of the data channels being at least part of a second set of data channels scheduled for the data transmission. The method also comprises generating, based on the first control information, feedback information indicating first reception states of data on the first group of data channels in association with the first channel indices and second reception states of data on the second group of data channels in association with the second channel indices.

Abstract: Facies of a formation are classified from data charactering properties of a portion of the formation as a function of depth, wherein the number of facies is determined automatically in an unsupervised manner without human input. In one embodiment, a layer-based methodology is provided that performs facies classification based on layer-based properties which are determined from well log data obtained from a plurality of different well logging tools. In another embodiment, a depth-based methodology is provided that performs facies classification based on well log data obtained depth-by-depth from a plurality of different well logging tools. The number of facies can be determined automatically without human input, for example using the Bayesian Information Criterion or a method which determines the optimal number of clusters based on the repeatability of the clustering results. In embodiments, the facies classification can be performed using the Gaussian mixture model (GMM) method.