Abstract: The teachings presented herein propose a separation between the configuration of a sounding signal, and the initialization of the sounding signal. In other words, in at least one example embodiment proposed herein, a base station or other controlling entity sends, to a mobile station, an explicit or implicit indication that causes the mobile station to transmit a sounding signal according to sounding signal configuration parameters that at least a portion of which were previously and separately sent to the mobile station.

Abstract: More than one set of sounding signal configuration parameters are determined for the same mobile terminal. The mobile terminal uses the sets of configuration parameters to generate different sounding reference signals which can be used for different purposes such as estimating timing and channel quality. In one embodiment, a method of configuring uplink sounding transmissions by mobile terminals in a wireless communication network is characterized by determining different sets of configuration parameters for sounding signal transmissions for a given mobile terminal (200). The different sets of configuration parameters are transmitted to the mobile terminal, allowing the mobile terminal to generate different sounding signals for different uses by the wireless communication network (202).

Abstract: The available transmission resources on a downlink-shared channel are divided into resource blocks, each resource block comprising a predetermined number of sub-carriers during a predetermined time period. The resource blocks are subdivided into localized resource blocks and distributed resource blocks. A user requiring sufficient resources can be allocated a plurality of said localized resource blocks. A user who would require only a small number of said localized resource blocks can instead be allocated subunits of a plurality of said distributed resource blocks.

Abstract: The present disclosure relates to a first radio node configured for orthogonal frequency division multiplexing (OFDM), comprising a receiver, a transmitter, a processor and a memory storing instructions executable by the processor for causing the transmitter in a first mode of operation with a first subcarrier spacing f1: to transmit a sequence of prefixed OFDM symbols, and in a second mode of operation with a second subcarrier spacing f2: to transmit a sequence of prefixed OFDM symbols, wherein the sequence of transmitted OFDM symbols is aligned with a predefined repeating radio frame, which is common to both the first and second modes of operation, or with an integer multiple of the predefined repeating radio frame; and the first and second subcarrier spacings are related by an integer factor, f1/f2=p or f1/f2=1/p, with p?1 integer.

Abstract: A first communication node (110) receives a stream of code blocks from a second communication node (120) over an acknowledged connection (131.). The first communication node processes the received code blocks in accordance with at least one transport format parameter, TFP, detects errors in received code blocks, and transmits an acknowledgment in respect of groups of code blocks indicating whether at least one error was detected in the group. A first subset of the code blocks of a group are transmitted (e.g., modulated and demodulated) in accordance with a first TFP value, and a remainder of the code blocks are transmitted in accordance with a second TFP value. Because the first and second TFP values are independent, it is possible either to shorten the necessary processing time in the first communication node or, in connection with a predictive acknowledgment mechanism, to make the receiving-side processing of code blocks that do not contribute to the value of the transmitted acknowledgment more robust.

Abstract: Methods, a wireless device (110) and a network node (120) for managing connectivity are disclosed. The wireless device (110) and/or the network node (120) determines an estimated level of a connectivity for a service of the wireless device (110) towards a wireless network (100). The estimated level of the connectivity relates to likelihood of maintaining the connectivity towards the wireless network (100). The estimated level of the connectivity is determined based on conditions relating to at least one connection for the wireless device (110). The at least one connection is managed by the wireless network (100). Moreover, corresponding computer programs and computer program products are disclosed.

Abstract: The invention relates to a technique for performing a random access procedure over a radio interface, for example between a mobile terminal and a radio base station of a mobile network. A method aspect of the invention comprises the steps of transmitting a synchronization request for synchronization information; receiving synchronization information in response to the synchronization request; and transmitting, based on at least one transmission parameter adjusted in accordance with the synchronization information, a resource request for data transmission resources.

Abstract: Transmit power control methods and apparatus are disclosed. In several embodiments, a mobile terminal is configured to effectively ignore “UP” transmit power control commands in the event that the mobile terminal is operating in a power-limited state. In an exemplary method for controlling transmit power at a mobile terminal, a plurality of transmit power control commands are received. An accumulated power control value is adjusted in response to each transmit power control command that directs a negative adjustment in transmit power. However, the accumulated power control value is adjusted in response to a transmit power control command that directs a positive adjustment in transmit power only if the mobile terminal is not in a power-limited state. Transmit power settings for each transmission are calculated based on the accumulated power control value and the one or more radio link parameters.

Abstract: A method and a first network node (120) of a wireless network (100) for managing a request for a connectivity for a service of a wireless device (110) are disclosed. The first network node (120) is configured to use a first set of resources of the wireless network (100). The first network node (120) receives (403) the request for the connectivity. The request is associated with a required level of a connectivity for the service. The required level of the connectivity relates to likelihood of maintaining the connectivity towards the wireless network (100). The first network node (120) further configures (404) the first set of resources to increase an estimated level of the connectivity for the service towards the wireless network (100). The estimated level of the connectivity is associated with the wireless network (100). A corresponding computer program and a computer program product are also disclosed.

Abstract: The present disclosure relates to a first radio node (300) configured for orthogonal frequency division multiplexing (OFDM), comprising a receiver (310), a transmitter (320), a processor (330) and a memory (340) storing instructions executable by the processor (330) for causing the transmitter (320) in a first mode of operation with a first subcarrier spacing f1: to transmit a sequence of prefixed OFDM symbols, and in a second mode of operation with a second subcarrier spacing f2: to transmit a sequence of prefixed OFDM symbols, wherein the sequence of transmitted OFDM symbols is aligned with a predefined repeating radio frame, which is common to both the first and second modes of operation, or with an integer multiple of the predefined repeating radio frame; and the first and second subcarrier spacings are related by an integer factor, f1/f2=p or f1/f2=1/p, with p?1 integer.

Abstract: A method in a node (110, 115) comprises generating (704) a frame structure comprising at least a first subframe (305, 405, 505), the first subframe comprising a first symbol (310A, 510A) and a second symbol (310B, 510B), each of the first and second symbols comprising a plurality of resource elements. The method comprises reserving (708) one or more of the plurality of resource elements in the first symbol for reference signals (335A-G, 435A-G, 535A-G), modulating (712) one or more of the reserved resource elements in the first symbol with reference symbols (335B-D, 435B-D, 535B-D), the modulated one or more of the reserved resource elements in the first symbol comprising a subset of the one or more reserved resource elements that overlap in frequency domain the data transmission carried in the second symbol, and transmitting (716) the at least one subframe to another node.

Abstract: It is provided a method for assisting downlink interference estimation in a cellular network. The method is performed in a network node of the cellular network and comprises the steps of: estimating an average transmit power of the network node in a future time period, resulting in a scaling factor indicating the average transmit power of the network node in relation to a reference transmit power of the network node; transmitting, in a resource element allocated to interference estimation, a reference signal for downlink interference estimation with a transmission power which is based on the scaling factor; and refraining from transmitting in a resource element in at least one instance where another network node transmits a reference signal for downlink interference estimation. A corresponding network node, computer program and computer program product for assisting downlink interference estimation are also presented.

Abstract: A wireless device, a radio network node, and methods therefor, for communicating in a network. The wireless device is configured to determine one or more possible first sequences of a discovery signal. The wireless device is configured to receive a second sequence of the discovery signal, and to determine if the one or more possible first sequences match the second sequence.

Abstract: Limited uplink bandwidth radio network devices (30) are supported on wide bandwidth uplink carriers by configuring and controlling the use of multiple control regions within the uplink carrier bandwidth. In some embodiments, the total bandwidth of the uplink carrier is divided into a plurality of sub-band portions, wherein at least one sub-band portion includes at least one control region nominally dedicated to the transmission of uplink control signaling. The control regions may be configured at one or both edges of sub-band portions, or elsewhere within a sub-band portions. Sub-band portions may share a control region. Radio network devices (30) are configured with a specified portion of the uplink carrier bandwidth for use for uplink transmission, which includes at least one control region. The specified portion may comprise an integer number of sub-band portions, or may span only part of one or more sub-band portions.

Abstract: Transmit power control methods and apparatus are disclosed. In several embodiments, a mobile terminal is configured to effectively ignore “UP” transmit power control commands in the event that the mobile terminal is operating in a power-limited state. In an exemplary method for controlling transmit power at a mobile terminal, a plurality of transmit power control commands are received. An accumulated power control value is adjusted in response to each transmit power control command that directs a negative adjustment in transmit power. However, the accumulated power control value is adjusted in response to a transmit power control command that directs a positive adjustment in transmit power only if the mobile terminal is not in a power-limited state. Transmit power settings for each transmission are calculated based on the accumulated power control value and the one or more radio link parameters.

Abstract: There is disclose a method for operating a wireless device in a wireless communication network, wherein the wireless device is configured to communicate utilizing signals in the form of symbols having a pre-determined symbol time length, the method comprising adapting a guarding time length of a guard interval in a symbol. In addition, related methods and devices are discussed.

Abstract: The technology described in this case facilitates random access by a user terminal with a radio base station. A user terminal determines one of a first type of uplink scrambling sequences and generates a random access message using the determined one of the first type of uplink scrambling sequences. The random access message is transmitted to the base station. The user terminal receives from the base station a second, different type of uplink scrambling sequence and uses it for subsequent communication with the radio base station. For example, the first uplink scrambling sequences may he specifically associated with the radio base station's cell area or a random access radio channel associated with the radio base station, but they arc not specifically assigned to any user terminal, and the second uplink scrambling sequence may be selected from a second set of uplink scrambling sequences specifically assignable to individual user terminals.

Abstract: A system and method for scheduling a transmission of a message in a communication system. In an embodiment, the method includes identifying major reference points and minor reference points associated with a subframe. The method also includes scheduling a transmission of the message to begin on one of the minor reference points between the major reference points.

Abstract: There is disclosed a method for operating a wireless device in a wireless communication network, the method comprising modulating a plurality of input bits (N), wherein modulating comprises choosing a first number (k) of frequencies from a predetermined set of a total number (NF) of frequencies, the first number (k) being larger than 1, and performing quadrature amplitude modulation to a second number (NQ) on each of the first number (k) of frequencies. There are further disclosed related methods and devices.

Abstract: A method and a wireless device (110) for managing probe messages are disclosed. The probe messages are used for verifying a required level of a connectivity for a service of the wireless device (110) towards a wireless network (100). The required level of the connectivity relates to likelihood of maintaining the connectivity towards the wireless network (100). The wireless device (110) estimates an estimated level of the connectivity for the wireless device (110). The wireless device (110) further adjusts an amount of the probe messages based on the required level of the connectivity and the estimated level of the connectivity. Moreover, corresponding computer programs and computer program products are disclosed.