Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.

Un metodo, en un dispositivo inalambrico, para operar en una red de comunicaciones inalambricas y operable para comunicarse con equipo de red de radio en la red de comunicaciones inalambricas, comprendiendo el metodo: recibir una primera senal de enlace descendente que comprende informacion que indica una pluralidad de configuraciones de acceso de enlace ascendente, incluyendo cada configuracion de acceso de enlace ascendente una configuracion de acceso aleatorio; recibir una segunda senal de enlace descendente que comprende un indice de configuracion de acceso de enlace ascendente, usando el indice de configuracion de acceso de enlace ascendente para identificar una configuracion de acceso de enlace ascendente entre la pluralidad indicada de configuraciones de acceso de enlace ascendente, y transmitir a la red de comunicaciones inalambricas una transmision de acceso aleatorio de acuerdo con la configuracion de acceso aleatorio incluida en la configuracion de acceso de enlace ascendente identificado; caracterizado porque el metodo comprende ademas: recibir, en respuesta, en una primera subtrama de enlace descendente, una primera transmision de multiplexacion por division de frecuencia ortogonal (OFDM) formateada de acuerdo con una primera numerologia y recibir, en una segunda subtrama de enlace descendente, una segunda transmision OFDM formateada de acuerdo con una segunda numerologia, la segunda numerologia difiere de la primera numerologia, en el que la primera numerologia tiene un primer espaciamiento de subportadora y la segunda numerologia tiene un segundo espaciamiento de subportadora, el primer espaciamiento de subportadora difiere del segundo espaciamiento de subportadora,

L'invention concerne des procedes realises par un dispositif sans fil, tel qu'un equipement utilisateur, fonctionnant dans un mode dormant, lesquels procedes consistent a realiser une mesure sur chaque ressource d'une pluralite de ressources provenant d'un ensemble predetermine de ressources ou a demoduler et a decoder des informations provenant de chaque ressource d'une pluralite de ressources provenant d'un ensemble predetermine de ressources, tel qu'un ensemble de faisceaux. Les procedes consistent en outre a evaluer la mesure ou les informations demodulees et decodees pour chaque ressource de la pluralite de ressources par rapport a un critere predetermine, puis a interrompre la realisation et l'evaluation de mesures, ou a interrompre la demodulation et le decodage et l'evaluation d'informations, en reponse a la determination du fait que le critere predetermine est satisfait, de telle sorte qu'une ou plusieurs ressources dans l'ensemble predetermine de ressources ne sont ni mesurees ni demodulees et decodees. Les procedes consistent en outre a desactiver une circuiterie de recepteur, toujours en reponse a la determination du fait que le critere predetermine est satisfait. Le procede consiste en outre a recevoir, dans une premiere sous-trame de liaison descendante, une premiere transmission de multiplexage par repartition orthogonale de la frequence formatee selon une premiere numerologie et a recevoir, dans une seconde sous-trame de liaison descendante, une seconde transmission OFDM formatee selon une seconde numerologie, la seconde numerologie etant differente de la premiere numerologie.

A method, in a wireless device, for operating in a wireless communications network and operable for communicating with radio network equipment in the wireless communications network, the method comprising: receiving a first downlink signal comprising information indicating a plurality of uplink access configurations, each uplink access configuration including a random access configuration; receiving a second downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration among the indicated plurality of uplink access configurations, and transmitting to the wireless communication network a random access transmission in accordance with the random access configuration included in the identified uplink access configuration; characterized in that the method further comprises: receiving, in response, in a first downlink subframe, a first orthogonal frequency division multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second downlink subframe , a second OFDM transmission formatted according to a second numerology, the second numerology differs from the first numerology, in which the first numerology has a first subcarrier spacing and the second numerology has a second subcarrier spacing, the first subcarrier spacing differs from the second subcarrier spacing,

Integration of new radio technologies to legacy ones has always been an important feature in any wireless communication generation shift and it is envisioned that for the transition to 5G this will be even more critical. Different 5G research projects have acknowledged the demand for a new air interface that will be designed to operate in higher frequency bands (compared to the ones currently allocated to LTE) where propagation is more challenging and coverage is spotty. This paper proposes a radio access network (RAN) architecture that realizes a tight integration of this new air interface with LTE to enable cross-air interface optimizations such as common resource management, faster mobility and simultaneous multi-connectivity features. The tight integration also aims at leveraging both the better coverage of LTE and the higher capacity of the higher frequency bands. In order to realize this integration, a common protocol layer (also called integration layer) lying on the top of lower layer protocols specified per air interface is proposed. The paper analyzes the alternatives for this integration layer, having the LTE protocol stack specified by 3GPP as a reference model. A recommendation is issued and, based on that, potential multi-connectivity features are presented.