Telefonaktiebolaget Lm Ericsson (publ)

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Andres Reial

Johan Rune

Claes Tidestav

Henrik Sahlin

Icaro L J Da Silva

Bengt Lindoff

Robert Baldemair

Johan Axnäs

Ali Nader

Rui Fan

Yi-Pin Eric Wang

Jose Luis Pradas

Zhang Zhang

Pål Frenger

Dennis Hui

Qingyu Miao

Kumar Balachandran

Peter Alriksson

Niklas Andgart

Sven Oscar Petersson

Joakim Axmon

Magnus Åström

Stefan Parkvall

Pradeepa Ramachandra

Fredrik Athley

Bo Hagerman

Johan Nilsson

Henrik Asplund

Gunnar Mildh

Fredrik Gunnarsson

Erik Bengt Dahlman

Stefan Wager

Osman Nuri Can Yilmaz

Lars Sundström

Lars Lindbom

Torgny Palenius

Jianfeng Wang

Reza Moosavi

Jinhua Liu

Jari Tapio Vikberg

Erik A Eriksson

Ajit Nimbalker

Martin Hessler

Magnus Stattin

Walter Müller

Karl Norrman

Qianxi Lu

Johan Torsner

Gabor Fodor

Janne Peisa

Joachim Sachs

Ali S Khayrallah

Gen Li

Thorsten Lohmar

Niclas Wiberg

Jonas Fröberg Olsson

Johan Furuskog

Niklas Johansson

Hai Feng Wang

Andreas Bergström

Zhan Zhang

Pontus Wallentin

Zhipeng Lin

Patrik Rugeland

Mårten Ericson

Martin Johansson

Karl Werner

Mikael Coldrey

Patrik Torgny Karlsson

Jonas Kronander

Shehzad Ali Ashraf

Fredrik Lindqvist

Dennis Sundman

Robert Mark Harrison

Stephen J Grant

Anders Furuskär

Elias Jonsson

Yutao Sui

Fredrik Nordström

Andreas Nilsson

Asbjörn Grövlen

Anders Wallén

Ravikiran Nory

SaiRamesh Nammi

Jan Christoffersson

Ali Behravan

Jingya Li

Gregory Edward Bottomley

Shaohua Li

Henrik Enbuske

Muhammad Ali Kazmi

Jung-Fu Cheng

Havish Koorapaty

Leif Wilhelmsson

George Jöngren

Johan Mikael Bergman

Min Wang

Oumer Teyeb

Bo Göransson

Henrik Sjöland

The present disclosure relates to transmitting synchronization signals and in particular to so called beam sweep. In particular the disclosure relates to methods for providing synchronization using synchronization sequences that are transmitted at different points in time. The disclosure also relates to corresponding devices and computer programs. A method in a network node, for transmitting synchronization sequences of a synchronization signal to one or more receiving wireless devices, comprises determining multiple synchronization sequences, such that each synchronization sequence comprises a respective timing indication, whereby each synchronization sequence enables determination of a time of an event in a receiving wireless device and transmitting the synchronization sequences to the one or more wireless devices, at different points in time.

Beam-scan time indicator

During a first portion (A) of an active time () of discontinuous reception (DRX) operation, a wireless device () monitors a control channel () using a first control channel monitoring configuration (-). During the active time (), though, the wireless device () switches from the first control channel monitoring configuration (-) to a second control channel monitoring configuration (-N). This switching may be triggered by occurrence of an event. During a second portion (OB) of the active time () occurring subsequent to the first portion (A) and after this switching, then, the wireless device () monitors the control channel () using the second control channel monitoring configuration (-N). The first portion (A) of the active time () and the second portion (OB) of the active time () may be included in the same DRX cycle.

Control channel monitoring in a wireless communication system

A method performed by a wireless device operating in a wireless communications network. The wireless device determines information to apply in the wireless device. The information is to receive one or more reference signals (RSs) while the wireless device is in inactive or idle state. The RSs are to be used to perform one or more tasks. The determining is based on one or more criteria. The criteria include a criterion of power consumption, and a target level of accuracy to be achieved in a performance of the tasks. The information includes: a pattern of reception of the RSs, and a configuration of a receiver. The information includes a bandwidth of reception of the RSs. The wireless device receives the RSs based on the determined information. The receiving of the RSs is performed while the wireless device is in inactive or idle state.

Wireless device, and methods performed thereby, for handling reception of one or more reference signals

Various embodiments of the present disclosure provide a method for random access. The method which may be performed by a terminal device comprises performing a transmission of a message to a network node in a random access procedure. The transmission of the message may comprise transmission of a preamble and transmission of a payload on a shared channel. The method further comprises receiving a response message from the network node. In response to the response message, the terminal device may perform a retransmission of the payload on the shared channel to the network node according to retransmission configuration.

Method and apparatus for random access

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.

Network architecture, methods, and devices for a wireless communications network

Methods and apparatuses are disclosed for minimum scheduling offset interpretation. In one embodiment, the network node is configured receive an indication of a first preferred value for a minimum scheduling offset for a first bandwidth part, BWP, having a first subcarrier spacing, SCS, and a second preferred value for a minimum scheduling offset for a second bandwidth part, BWP, having a second subcarrier spacing, SCS; determine a minimum scheduling offset parameter for at least one of the first BWP having the first SCS and the second BWP having the second SCS based at least in part on at least one of the first preferred value and the second preferred value; and configure the wireless device with the determined minimum scheduling offset parameter. In another embodiment, a wireless device is configured to indicate the first and second preferred values.

Configuration of minimum scheduling offsets

Embodiments include methods, performed by a user equipment (UE), for selective transmission or reception of signals or channels with a wireless network. Such methods include receiving a first physical downlink control channel (PDCCH) transmission from the wireless network. Such methods also include, without determining whether a signal or channel is scheduled for the UE during a first duration immediately following the first PDCCH transmission, refraining from transmitting or receiving any signals or channels during the first duration. The first duration can be based on one or more of the following: predicted scheduling characteristics for the PDCCH; UE operating conditions; and communication characteristics of an application running on the UE. In some embodiments, such methods can also include determining the predicted scheduling characteristics based on a plurality of second PDCCH transmissions received, from the wireless network, before the first PDCCH transmission. Other embodiments include UEs configured to perform such methods.

Selective transmission or reception for reducing UE energy consumption

Various embodiments of the present disclosure provide a method for random access. The method which may be performed by a terminal device comprises performing a first transmission of a message from the terminal device to a network node in a random access procedure, according to first configuration information. The first transmission of the message comprises a transmission of a first preamble and a transmission of a payload on a shared channel. The method further comprises performing a second transmission of the message from the terminal device to the network node in the random access procedure, according to second configuration information. The second transmission of the message comprises at least one of: a transmission of a second preamble and a retransmission of the payload on the shared channel.

An access node () configures a User Equipment, UE (), with a power saving monitoring pattern, and subsequently transmits a power saving signal configured to switch the UE () from monitoring a downlink in accordance with a connected mode discontinuous reception, C-DRX, monitoring pattern to monitoring the downlink in accordance with the power saving monitoring pattern. For each of the monitoring patterns, monitoring the downlink in accordance with the monitoring pattern comprises monitoring the downlink only when a monitoring opportunity of the monitoring pattern is concurrent with a scheduled active interval of a C-DRX configuration of the UE (). For any C-DRX cycle of the C-DRX configuration, the monitoring of the downlink in accordance with the power saving monitoring pattern has a shorter monitoring duration than the monitoring of the downlink in accordance with the C-DRX monitoring pattern. The UE () correspondingly receives the power saving signal and switches how it monitors the downlink accordingly.

Reducing power consumption of a user equipment configured for discontinuous reception

A method, network node and wireless device for single downlink control information (DCI), multiple slot scheduling are disclosed. According to one aspect, a method includes receiving a downlink control information, (DCI) signal in a first slot, the DCI being configured to cause the WD to transmit uplink shared channel transmissions to the network node and/or receive downlink shared channel transmissions from the network node, the transmitting and/or receiving being according to a pattern in a plurality of slots. The method further includes transmitting the uplink shared channel transmissions to the network node and/or receive the downlink shared channel transmissions from the network node according to the pattern, the transmitting and/or receiving of the uplink and/or downlink shared channel transmissions in each slot being in a number of layers indicated by a rank provided by the DCI signal.

Enhanced single downlink control information multi-slot scheduling

Embodiments include methods, performed by a user equipment (UE), for receiving reference signals (RS) in a wireless network. Such methods include receiving, from a network node in the wireless network, a configuration for connected-state RS transmitted by the network node. In some embodiments, the connected-state RS can be periodic channel state information RS (CSI-RS) or periodic tracking RS (TRS). Such methods include, while the UE is in a non-connected state and based on the received configuration, determining that the connected-state RS are available during one or more first occasions. Such methods include, while the UE is in the non-connected state, selectively receiving the connected-state RS during the first occasions. Other embodiments include complementary methods performed by a network node, as well as UEs and network nodes configured to perform such methods.

Additional reference signals for UEs in non-connected states

There is provided a method () performed by a wireless device (WD) for communicating with a network node in a wireless communication network. The method comprises configuring () the WD with a Discontinuous Reception (DRX) configuration having an ON-duration configuration and a long/short DRX cycle configuration, the DRX configuration defining a timing and a length of an ON-duration for the WD based on a message from the network node. The method further comprises configuring () the WD with a Power Saving Signal (PSS) configuration based on a message from the network node, wherein the PSS configuration comprises a PSS offset and a PSS range, and where the PSS offset and the PSS range define a starting point and length of a PSS Monitoring Window (MW) within which at least one PSS Monitoring Occasion (MO) occurs. Further, the method comprises monitoring () a signal or channel at one or more PSS MOs within the PSS MW. There is also provided a corresponding wireless device () for communicating with a network node, a method () perform by a network node, and a network node ().

Power saving signal monitoring occasions configuration and capability signaling

A wireless communication device having a receiving module, a transmitting module, and a processor which includes a determining module, and a processing module, wherein the wireless communication device is arranged to perform a method for power savings in a wireless communication system. Transmissions of a first set of reference symbols, RSs, and a second set of RSs are provided in the wireless communication system. The method includes obtaining information on the transmission of the second set of RSs, and determining which RS to use for idle mode tasks based on the obtained information on the transmission of the second set of RSs. The first set of RSs are provided periodically, and the second set of RSs are provided any of periodic, semi-persistent or aperiodic transmissions.

Method and wireless communication device exploiting additional reference symbols in idle mode for power saving

The present disclosure provides a method in a User Equipment of transmitting a random access preamble and a physical uplink shared channel, comprising: determining a resource size to be used to contain the physical uplink shared channel, the resource size being one of a set of predetermined sizes; identifying a resource to be used from a predetermined set of resources, the resource in the set of resources corresponding to the determined resource size, each resource being identified with a respective first index n and occupying a distinct set of OFDM symbols and subcarriers; identifying a PRACH preamble with a second index n' corresponding to the first index n of the identified resource; and transmitting the identified PRACH preamble, and the physical uplink shared channel in the identified resource.

Method and apparatus for physical uplink shared channel format adaptation

A method is disclosed of paging a user equipment (UE) by a network node. The network node is configured for beam-formed transmission of a plurality of beams, wherein each beam is associated with a corresponding synchronization signal block (SSB), and wherein a physical downlink control channel (PDCCH) paging monitoring occasion (PMO) is associated with a preceding SSB. The method comprises determining (while the UE is in a non-connected mode) a subset of the plurality of beams related to one or more beams previously associated with the UE, transmitting the corresponding SSB for each beam of the plurality of beams, and paging the UE only in PDCCH PMO:s associated with the corresponding SSB:s of the beams of the subset. Corresponding apparatus, network node and computer program product are also disclosed.

Paging a user equipment by a network node

Growing community of inventors

Malmö, Sweden

Andres Reial