Telefonaktiebolaget Lm Ericsson (Publ)

St-Ericsson Sa

Dominique Everaere

Imadur Rahman

Muhammad Ali Kazmi

Mårten Sundberg

Laetitia Falconetti

Christopher Peter Callender

Christian Bergljung

Yi-Pin Eric Wang

Yutao Sui

Gustav Wikström

Jingya Li

Hongxia Zhao

SaiRamesh Nammi

Ali Behravan

Asbjörn Grövlen

Mats Åhlander

Spendim Dalipi

Kenneth Sandberg

Liang Zhang

A method in a wireless device is disclosed. The wireless device receives an uplink grant from a network node, the uplink grant scheduling one or more uplink transmissions by the wireless device. The wireless device selects an ON/OFF time mask to use for transmitting the one or more uplink transmissions. The wireless device determines, based on the received uplink grant, an allowed placement of a transient period of the selected ON/OFF time mask and a duration of the transient period to use for the one or more uplink transmissions.

Methods and apparatuses for determining a placement and duration of a transient period of an on/off time mask for uplink transmission

According to certain embodiments, a method by a wireless device is provided for determining a maximum output power. The method includes obtaining, by the wireless device, a first time resource for transmitting a first signal in βa first cell on a first carrier and a second time resource for transmitting a second signal in a second cell on a second carrier. Based on the first time resource and the second time resource, the maximum output power is 10 determined. The first signal and the second signal are transmitted based on the determined maximum output power.

Systems and methods to derive configured output power with different TTI

A network node is provided. The network node includes circuitry configured to determine a Transmission Time Interval, TTI, configuration, the TTI configuration including a first TTI for operating a first signal between a first cell on a first carrier and a wireless device, and a second TTI for operating a second signal between the first cell on the first carrier and the wireless device, the TTI configuration including one of: the first TTI adjacent to the second TTI which do not overlap with each other in time; and the first TTI adjacent to the second TTI which at least partly overlap with each other in time, and configured to receive the first signal in the first TTI and the second signal in the second TTI, the first TTI and second TTI having been transmitted based on a maximum output power parameter that is based on the TTI configuration.

Deriving configured output power for consecutive transmission time intervals (TTIS) in shortened TTI patterns

Embodiments described herein are directed to methods, apparatus and systems for virtualizing the standalone NB-IoT carrier to make it possible to place two standalone NB-IoT carriers side-by-side. The methods can include receiving a first anchor carrier in standalone spectrum shifted +/&#x2212;2.5 kHz or +/&#x2212;7.5 kHz from a 100 kHz raster grid. An indication can be received on the first anchor carrier that the first anchor carrier is operated as one of an inband carrier or a guardband carrier. A second carrier can be received in standalone spectrum, the second carrier separated from the first anchor carrier by less than 400 kHz.

Flexible standalone spectrum for NB-IoT

A method in a first node () is disclosed. The method comprises determining () a time resource over which the first node transmits a signal to a second node (). The method comprises signaling (), to at least one of the second node or a third node (), information about one or more transient time parameters associated with the time resource, wherein the one or more transient time parameters are used by the first node for transmitting the signal to the second node during the time resource. The method comprises adapting () a transmitter configuration of the first node for transmitting the signal to the second node based on one of the one or more transient time parameters.

Optimizing network demodulation performances by signaling supported UE transient time

A wireless device () obtains () a first transmission time interval (TTI) for transmitting a first signal, and determines (), based on the first TTI, a first transient time associated with the first TTI that defines a first duration during which a transmit power level of the wireless device changes. The wireless device transmits () the first signal using the first transient time. The wireless device obtains () a second TTI for transmitting a second signal, wherein a length of the second TTI is different from a length of the first TTI. The wireless device determines (), based on the second TTI, a second transient time associated with the second TTI that defines a second duration during which the transmit power level of the wireless device changes that is different from the first transient time. The wireless device transmits () the second signal using the second transient time.

Adapting UE on/off transient time parameter for different transmission time interval patterns

According to certain embodiments, a method by a wireless device is provided for determining a maximum output power. The method includes obtaining, by the wireless device, a first time resource for transmitting a first signal in &#x3b2;a first cell on a first carrier and a second time resource for transmitting a second signal in a second cell on a second carrier. Based on the first time resource and the second time resource, the maximum output power is 10 determined. The first signal and the second signal are transmitted based on the determined maximum output power.

The disclosure relates to a method and wireless device configured for communication in a wireless communication network, the method comprising the steps of obtaining a first transmission time interval, TTI, used for transmission timing of a first signal, obtaining a second TTI, used for transmission timing of a second signal, obtaining a maximum received time difference, MRTD, parameter, and operating the first signal between a wireless device and a first cell using the MRTD parameter and a first carrier, and the second signal between the wireless device and a second cell using the MRTD parameter and a second carrier, the second carrier being different from the first carrier, wherein the MRTD parameter is obtained by determining the MRTD parameter based on the first and the second TTI. The disclosure further relates to a network node and a method thereof.

Wireless device and a network node for a wireless communication system and methods thereof

A wideband carrier (e.g., LTE carrier) is shifted up or down in frequency, within an allocated frequency band, by an integer multiple of the channel raster spacing (e.g., 100 KHz). This reduces the size of the guard band on one side of the carrier, and expands the guard band on the other side. A narrowband carrier (e.g., NB-IoT carrier) is then deployed within the expanded guard band, at or near a frequency such that the transmission is orthogonal to the wideband carrier transmissions, such as by using a shared N frequency grid spacing (e.g. at 100 KHz spacing, and using 15 KHz subcarriers). The narrowband carrier thus maintains orthogonality with the wideband carrier, but has 'room' within the expanded guard band to both transmit on a frequency close to the frequency grid spacing, and to boost transmit power (e.g., by 6 dB), while remaining within the spectral mask. The shifted wideband carrier is transparent to wideband UEs, as the frequency shift is an integer multiple of the channel raster spacing.

Narrowband service deployment in wideband carrier guard-band

A wireless communication device () receives from a radio node () one or more parameter values indicating power allocated to one or more radio signals of a wideband transmission (). The wideband transmission () operates in a wideband operating bandwidth (). The wireless communication device () also receives from the radio node () information about at least one of: (i) a first portion () of radio resources, within the wideband operating bandwidth (), on which power indicated by the one or more parameter values is allocated; and (ii) a second portion () of radio resources, within the wideband operating bandwidth (), on which power indicated by the one or more parameter values is not allocated and on which a narrowband transmission () is transmitted. The wireless communication device () also performs one or more radio operations based on the one or more parameter values and the received information.

Growing community of inventors

Åkersberga, Sweden

Dominique Everaere