Abstract: A method of controlling data transmission of a transceiver is disclosed. The method comprises determining that data is pending for transmission by the transceiver and receiving a signal. A current required transmission effort for transmission of the data is estimated based on the received signal and it is determined if data transmission is to be initiated based on the estimated current required transmission effort, required transmission effort statistics and a time criterion associated with the data. Transmission of the data is initiated if it is determined that so should be done and otherwise the decision of transmitting the data is postponed. Corresponding computer program product, processor, arrangement and wireless communication device are also disclosed.

Abstract: A method of a wireless communication access node is disclosed. The wireless communication access node is adapted to establish a wireless communication link to a wireless communication device by beam-formed transmission using a beam-forming alternative selected from a plurality of beam-forming alternatives each corresponding to a direction emanating from the wireless communication access node. The method comprises simultaneously transmitting two or more beacon signals having different respective predetermined content, wherein each beacon signal is transmitted using a respective one of the plurality of beam-forming alternatives and wherein the predetermined content of each beacon signal is associated with the direction corresponding to the respective beam-forming alternative.

Abstract: Systems and methods are disclosed herein that relate to the use of a Device-to-Device (D2D) sidelink, e.g., in a licensed spectrum, to assist with clear channel assessment in an unlicensed spectrum. In doing so, the hidden node problem and/or the exposed node problem can be mitigated. In some embodiments, a method of operation of a wireless device in a cellular communications network comprises performing a sidelink-assisted clear channel assessment (SLA-CCA) procedure to determine whether to transmit on an unlicensed channel. The SLA-CCA procedure is a Clear Channel Assessment (CCA) procedure that is assisted by information received by the wireless device from one or more other wireless devices over a D2D sidelink in a licensed spectrum. The method further comprises, upon determining to transmit on the unlicensed channel as a result of performing the SLA-CCA procedure, transmitting a transmission on the unlicensed channel.

Abstract: A communication device is arranged for three main communication states: a detached state, an idle state, and an active state. The communication device connects to the cellular communication network such that a transition from the detached state to any of idle state or active state is made, performs scheduled operations in the active state or idle state, determines, when a transition from the active state to the idle state occurs, a time instant for a next operation in the active state, disconnects from the cellular communication network such that a transition to the detached state is made, and, when the time for next operation in the active state is approaching, connects to the cellular communication network again. A transceiver and a computer program are also disclosed.

Abstract: Techniques are disclosed for creating and using a pattern of radio resources to be shared in a cell between devices using an enhanced-coverage mode and at least one other category of devices. An example method includes forming (810) a resource pattern, the resource pattern indicating an allocation of first radio resources in a first cell to a first type of wireless device and indicating an allocation of second radio resources in the first cell to a second type of wireless device. The resource pattern is sent (820) to a second network node of the wireless communication system, e.g., a network node serving a neighboring cell, or to at least one wireless device, or to both. The resource pattern may be used in scheduling by the first network node or the second network node, or both.

Abstract: The present disclosure proposes a general method for accessing a network when a wireless device, e.g., a user equipment, knows about a wireless network because it can e.g. measure on a cell and read its system information, but is unable to access it. The disclosure relates to transmitting uplink control messages relating to data received in a wireless device and in particular it relates a method, performed in a wireless device supporting a first radio access technology and a second radio access technology, of transmitting uplink control messages relating to data received in the wireless device. The method comprises receiving a configuration message defining in the first radio access technology, a Physical Fast Control Channel for transmission of uplink control messages relating to data received in the wireless device using the second radio access technology and transmitting uplink control messages relating to data received using the second radio access technology on the Physical Fast Control Channel.

Abstract: Decoding of a first message is disclosed, wherein first and second messages are encoded by a code (represented by a state machine) to produce first and second code words, which are received over a communication channel. A plurality of differences (each corresponding to a hypothesized value of a part of the first message) between the first and second messages are hypothesized. An initial code word segment is selected having, as associated previous states, a plurality of initial states (each associated with a hypothesized difference and uniquely defined by the hypothesized value of the part of the first message).

Abstract: Decoding of a first message is disclosed, wherein first and second messages are encoded by a code (represented by a state machine) to produce first and second code words, which are received over a communication channel. A plurality of differences (each corresponding to a hypothesized value of a part of the first message) between the first and second messages are hypothesized. An initial code word segment is selected having, as associated previous states, a plurality of initial states (each associated with a hypothesized difference and uniquely defined by the hypothesized value of the part of the first message).

Abstract: Systems and methods are disclosed for adjusting Radio Link Monitoring (RLM), Radio Link Failure (RLF) detection, RLF recovery, and/or connection establishment failure detection for wireless devices (16) in a cellular communications network (10) depending on mode of operation. In one embodiment, a node (14, 16) in the cellular communications network (10) determines whether a wireless device (16) (e.g., a Machine Type Communication (MTC) device) is to operate in a long range extension mode of operation or a normal mode of operation. The node (14, 16) then applies different values for at least one parameter depending on whether the wireless device (16) is to operate in the long range extension mode or the normal mode. The at least one parameter includes one or more RLM parameters, one or more RLF detection parameters, and/or one or more RLF recovery parameters.

Abstract: A radio transceiver circuit for FDD communication is disclosed. It comprises a transmitter for FDD signal transmission in a first frequency band, a first receiver for FDD signal reception in a second frequency band, separate from the first frequency band, and a duplexer. An output port of the transmitter is operatively connected to a first port of the duplexer for transmitting, through the duplexer, signals in said first frequency band. An input port of the first receiver is operatively connected to a second port of the duplexer for receiving, through the duplexer, signals in said second frequency band. The radio transceiver circuit comprises a second receiver, separate from the first receiver, for reception in said first frequency band. An input port of the second receiver is operatively connected to said first port of the duplexer for receiving, through the duplexer, signals in said first frequency band. A related radio communication apparatus is also disclosed.

Abstract: According to some embodiments, a method in a wireless device of a wireless communication network comprises receiving scheduling information for one or more System Information (SI) messages. The wireless device determines a coverage enhancement level associated with each of the one or more SI messages based on the received scheduling information. The wireless device also determines a coverage enhancement level of the wireless device. After identifying a subset of the one or more SI messages based on the determined coverage enhancement level of the wireless device, the wireless device acquires a SI message from the identified subset of the one or more SI messages.

Abstract: A method performed by a first transceiver device in D2D communication with second transceiver devices in a cellular network comprises transmitting a reference signal comprising an identity of the first transceiver device, and receiving feedback messages from the second transceiver devices, where a feedback message comprises the identity of the first and an identity of the second transceiver device, and channel characteristics of a radio channel between the first and the second transceiver device, where the channel characteristics are estimated by the second transceiver device. The method further comprises deciding, based on the feedback messages, whether a second transceiver device should be included in a set of intended devices to which the first transceiver device will perform a transmission of a communication signal.

Abstract: The disclosure pertains to a terminal for a Radio Access Network, the terminal being adapted for transmitting Uplink Control Information, UCI. Transmitting UCI comprises repeating the UCI for a number of repetitions, the number of repetitions being determined based on a Random Access CHannel Coverage Enhancement Level, PRACH CE level. The disclosure also pertains to related methods and devices.

Abstract: Systems and methods are disclosed for adjusting Radio Link Monitoring (RLM), Radio Link Failure (RLF) detection, RLF recovery, and/or connection establishment failure detection for wireless devices in a cellular communications network depending on mode of operation. In one embodiment, a node in the cellular communications network determines whether a wireless device (e.g., a Machine Type Communication (MTC) device) is to operate in a long range extension mode of operation or a normal mode of operation. The node then applies different values for at least one parameter depending on whether the wireless device is to operate in the long range extension mode or the normal mode. The at least one parameter includes one or more RLM parameters, one or more RLF detection parameters, and/or one or more RLF recovery parameters. In doing do, signaling overhead and energy consumption when operating in the long range extension mode is substantially reduced.

Abstract: Embodiments herein relate to a transmitting node and method therein for transmitting channel information in subframes to a receiving node. Each subframe comprises a number of control channel elements and a set of control channel candidates. The transmitting node transmits control channel information in a subframe when a start control channel element index of a control channel candidate is smaller than or equal to the number of available control channel elements in a predefined subframe, and refrains from transmitting control channel information when the start control channel element index of the control channel candidate is larger than the number of available control channel elements in the predefined subframe. The embodiments also relate to a receiving node and method therein.

Abstract: According to one aspect there is provided a method in a first network node of a telecommunication network. The network has a plurality of base stations which are operable to transmit a broadcast channel repetition pattern comprising at least one time window of a first mode of operation. The first mode of operation is interspersed between periods of a second mode of operation. The number of repetitions of a broadcast channel in a given period is greater in the first mode than in the second mode. The method comprises determining first data regarding a broadcast channel repetition pattern to be or being transmitted by a first base station. The first data comprises at least timing information about the timing of the time windows of the first mode of operation. The method also comprises sending the first data to a second network node that controls operation of a second base station neighboring the first base station.

Abstract: A method in a wireless communication network for assisting a user equipment to receive signals from a target access node. The wireless communication network comprises the target access node, the user equipment and a serving access node serving the user equipment. The serving access node sends information about time instances to the user equipment. The time instances are scheduled for sending signals from the target access node in a beam direction towards the user equipments. The time instances may be determined in the target access node based on its own position and a position of the user equipment and/or a beam direction of the serving access node. The time instances may also be determined in the serving access node based on its own position and a schedule of the target access node on beam directions versus transmission times. The user equipment receives signals from the target access node during the time instances indicated in the received information.

Abstract: Systems and methods are disclosed for triggering a long range extension mode of operation for a wireless device in a cellular communications network. In one preferred embodiment, the wireless device is a Machine Type Communication (MTC) device. In one embodiment, a node in the cellular communications network determines that the wireless device is to operate in the long range extension mode if there is difficulty in establishing communication between the wireless device and the cellular communications network. If the wireless device is to operate in the long range extension mode, the node activates one or more long range extension mechanisms with respect to the wireless device such that the wireless device operates in the long range extension mode. In this manner, the long range extension mode is selectively triggered for the wireless device.

Abstract: Systems and methods are disclosed herein that relate to the use of signals in a licensed spectrum to assist with determining a status of an unlicensed channel(s) in an unlicensed spectrum. In some embodiments, a method of operation of a wireless device in a wireless system in which the wireless device transmits and/or receives in both a licensed spectrum and an unlicensed spectrum comprises attempting to detect a busy indication transmitted in the licensed spectrum. The busy indication is an indication that another wireless device is transmitting in the unlicensed spectrum. The method further comprises determining whether to transmit in the unlicensed spectrum based on whether the wireless device has detected a busy indication transmitted in the licensed spectrum. By using signals in the licensed spectrum, the hidden node problem and/or the exposed node problem in the unlicensed spectrum can be mitigated.

Abstract: Systems and methods are disclosed herein that relate to determining a coverage scenario of a wireless device and determining an amount of resources to be used by the wireless device for transmission of a random access signal based on the coverage scenario of the wireless device. In some embodiments, a method of operation of a wireless device for random access to a cellular communications network comprises determining a number of resources needed for the wireless device to successfully decode an information block received from a radio access node. The method further comprises determining at least one of: a code rate and a transmit power used for transmission of the information block by the radio access node. The method further comprises determining an amount of resources to be used by the wireless device when transmitting a random access signal for a random access procedure based on the aforementioned information.