Abstract: Provided are a method for performing device-to-device (D2D) operation of a terminal in a wireless communication system, and a terminal using the same. The method is characterized by applying frequency synchronization on the basis of a primary cell of a first frequency, applying time synchronization on the basis of a non-serving cell of a second frequency for which D2D operation is to be performed, and performing the D2D operation on the basis of the frequency synchronization and the time synchronization.

Abstract: This application describes a resource indication method and a communications device. A resource indication method may include sending, by a first device, first indication information to a second device in an nth time unit, where the first indication information indicate a first time domain resource of a first link or a second link in an (n+k0)th time unit to an (n+k1)th time unit. In the method, the first link is a link between the first device and the second device, the second link is a link between the second device and a third device, k0 is an integer greater than or equal to 0 and less than or equal to k1, and k1 is an integer.

Abstract: A method and system for performing link adaptation are disclosed. According to one aspect, a method in a wireless communication system for performing link adaptation is provided. The method includes, when a first measure of channel quality is higher than a first predetermined amount, using a first outer loop adjustment process directed to determining link adaptation for a first data transmission transmitted to a wireless device. The method also includes, when the first measure of channel quality is lower than a second predetermined amount, using a second outer loop adjustment process different from the first outer loop adjustment process directed to determining link adaptation for a second data transmission transmitted to the wireless device.

Abstract: In a wireless communication network that operates according to a communication protocol that defines one or more first transmission modes that provide extended range communications as compared to one or second transmission modes defined by the communication protocol, a communication device generates a communication frame that includes information indicating that the one or more first transmission modes should not be used when transmitting in the wireless communication network. The communication device transmits the communication frame to instruct one or more other communication devices in the wireless communication network to not use the one or more first transmission modes when transmitting in the wireless communication network.

Abstract: A full-duplex radio device is disclosed. The full-duplex radio device includes an analog transmission (TX) circuit that includes a power amplifier to output an analog TX signal. The full-duplex radio device also includes a feedback receiver circuit coupled to the analog TX circuit. The feedback receiver circuit provides a digital representation of the analog TX signal that is used to digitally cancel at least a transmitter noise component of a self-interference signal associated with a transmission of the analog TX signal in the full-duplex radio device.

Abstract: A method in a first radio node for performing measurements in a communication network is provided. The method comprises: performing a first amount of measurements on a first signal based on a first numerology; and performing a second amount of measurements on a second signal based on a second numerology; wherein performing the first and second amounts of measurements is based on a relation between the first and second amounts of measurements. The first radio node for carrying this method is also provided. The first radio node could be a wireless device, for example.

Abstract: Provided are an information transmission method and device, a processor, and a storage medium. The method includes: a terminal receives a ratio resource configured by a network; the terminal obtains a resource set according to the radio resource; and the terminal transmits uplink information by using one or more resource groups in the resource set, wherein the number of resource groups Y in the resource set is greater than or equal to 2 a terminal receiving radio resources configured by a network side; the terminal acquiring a resource set according to the radio resources; and the terminal sending uplink information by using one or more resource groups in the resource set, where the number Y of resource groups in the resource set is greater than or equal to 2.

Abstract: A method and system for controlling how many carriers to aggregate together for carrier-aggregation service of a UE. A base station could take into account how many MIMO layers a UE would support respectively for each of various candidate quantities of carriers, and the base station could select the candidate quantity of carriers that would result in use of a highest aggregate total number of MIMO layers. Further, the selection could involve mapping UE-reported rank to a quantity of carriers, with the rank being inversely proportional to the selected quantity of carriers. The base station could then configure carrier-aggregation service of the UE with the selected quantity of carriers.

Abstract: Wireless communications systems and methods related to configured transmissions in a shared radio frequency band are provided. A user equipment (UE) receives, from a base station (BS), an indication of a first configured resource in a shared radio frequency band for a communication in a first direction. The UE receives, from the BS, a first configuration to select between a validation of the first direction or an absence of an invalidation of the first direction for using the first configured resource for the communication. The UE communicates, with the BS, the communication in the first direction using the first configured resource based on the first configuration.

Abstract: Various aspects of the disclosure relate to the selection and use of modulation and coding scheme (MCS) values. For example, a first MCS table may be used for a first condition and a second MCS table used for a second condition. The disclosure relates in some aspects to inter-device signaling that indicates which MCS table is to be used for communication between the devices.

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. An uplink resource can be ensured while a communication service with improved quality is provided even to a terminal whose channel situation is not good.

Abstract: [Object] To provide a communication apparatus and a communication method which are capable of reducing the overhead of communication while suppressing influence on the frame reception process. [Solution] Provided is a communication apparatus, including: a processing unit configured to select one of a frame of a first format including a training signal and a frame of a second format not including a first field which is at least a part of the training signal, and generate the frame of the selected format; and a communication unit configured to transmit the frame of the first format or the frame of the second format. Also provided is a communication method, including: selecting one of a frame of a first format including a training signal and a frame of a second format not including a first field which is at least a part of the training signal, and generating the frame of the selected format; and transmitting the frame of the first format or the frame of the second format.

Abstract: A method for transmitting successive messages forming a frame in a telecommunication system with M sources (s1, . . . , sM), L relays and a destination, M>1, L?1 according to an orthogonal multiple-access scheme of the channel between the M sources and the L relays with a maximum number of M+Tmax time slots per transmitted frame including M slots and Tmax cooperative transmission slots. The method includes: a slow type link adaptation determining an initial rate for each source by destination based on an average SNR of each link and transmitting to each source the initial rate; and for each frame out of several, successively transmitting the messages of the M sources during the M slots phase with, respectively, modulation and coding schemes determined from the initial rates. The link adaptation maximizes the aggregate rate of all the sources subject to the constraint of a target average BLER ?com after Tmax?X?1 cooperative transmissions.

Abstract: The present invention relates to a method, user equipment and a base station adapted to handle channel state feed-back reports in a more flexible way. More specifically, a channel state feedback procedure is provided which utilizes the resources available for transmission of channel state feedback more efficiently. This is achieved by including uplink grant availability into the channel state feedback reporting triggers used for determining when and how to send channel state feedback from a UE, i.e. a channel state feedback reporting request may be sent by a base station in an uplink grant to a UE comprising an indication of an expected amount of information to be returned.

Abstract: Embodiments of this application provide a multistation coordination-based data transmission method and apparatus. The method includes: receiving, by a station, second data of another station, different from the station, in a coordination group to which the station belongs; sending, by the station, first data to the other station, so that the other station generates a second aggregated frame that includes the first data and the second data; and sending, by the station, a first aggregated frame to an access point. The first aggregated frame includes the first data and the second data. This reduces a transmit power of a single station, and prolongs a service lifespan of the station.

Abstract: A method for communication by an edge communication device with a network via a relay communication device includes synchronizing to a network using an initial synchronization signal, associating with a relay communication device, entering a power saving state, awakening from the power saving state, searching for a periodic secondary relay synchronization signal (SRSS) transmitted by the relay communication device using an SRSS search window having a duration longer than a duration of a network search window for searching for the initial synchronization signal, synchronizing to the relay communication device based on the SRSS signal, and transmitting data to the relay communication device based on the synchronizing to enable the relay communication device to relay the data to the network.

Abstract: A communications device comprising a transmitter for transmitting signals representing device-to-device communications to a second communications device across a wireless access interface, a receiver for receiving signals representing device-to-device communication from the second communications device across the wireless access interface, the wireless access interface including a control resource for communicating control data between communications devices and a data resource for communicating user data between communications devices, the control data providing scheduling assignments for the allocation of resources of the data resource, and a controller for controlling the transmitter and the receiver to perform interference detection in one or more of the control resource and the data resource, and to transmit in the control resources, in response to detecting interference in one or more of the control resource and the data resource, signals representing an indication of the detected interference to the se

Abstract: Various communication systems may benefit from the appropriate use of sequence numbers. For example, radio link control unacknowledged mode may benefit from the use of sequence numbers on demand for segmentation. A method can include determining whether segmentation is to occur with respect to a packet data unit. The method can include providing a sequence number in a header of the packet data unit contingent on usage of segmentation with respect to the packet data unit.

Abstract: Methods and systems are disclosed that can help to select an enhancement mode for uplink coordinated multipoint (CoMP). An exemplary method involves: determining a measure of remaining battery power of a first user equipment (UE), wherein the first UE is capable of uplink coordinated multipoint (CoMP) communication; determining a particular UE type of the first UE, wherein the particular UE type is one of a plurality of possible UE types; based at least in part on (a) the particular UE type of the first UE, and (b) the measure of remaining battery power of the first UE, selecting either a battery-saving mode or a throughput-enhancement mode as an uplink CoMP enhancement mode for the first UE; and providing uplink CoMP service to the first UE according to the selected uplink CoMP enhancement mode.

Abstract: Systems and methods for transmission and reception of a wake-up signal having a determined maximum length that is related to a maximum repetition value of another signal are disclosed. Embodiments of a method in a wireless device for determining a maximum length of a wake-up signal representing a maximum duration of the wake-up signal, the WUSmax value being related to a maximum repetition value representing a maximum number of repetitions of signals transmitted by a network node in a cellular communications network are disclosed. In some embodiments, the method in the wireless device includes receiving a Rmax value from the network node, determining a WUSmax value based on the Rmax value, and attempting to detect a wake-up signal from the network node using the determined WUSmax value.