Telefonaktiebolaget Lm Ericsson (publ)

Andres Reial

Johan Rune

Claes Tidestav

Henrik Sahlin

Icaro L J Da Silva

Bengt Lindoff

Robert Baldemair

Ali Nader

Johan Axnäs

Rui Fan

Yi-Pin Eric Wang

Jose Luis Pradas

Zhang Zhang

Pål Frenger

Qingyu Miao

Dennis Hui

Peter Alriksson

Magnus Åström

Sven Oscar Petersson

Joakim Axmon

Kumar Balachandran

Niklas Andgart

Johan Nilsson

Stefan Parkvall

Pradeepa Ramachandra

Fredrik Athley

Bo Hagerman

Henrik Asplund

Gunnar Mildh

Fredrik Gunnarsson

Erik Bengt Dahlman

Ajit Nimbalker

Stefan Wager

Osman Nuri Can Yilmaz

Lars Lindbom

Torgny Palenius

Jianfeng Wang

Lars Sundström

Reza Moosavi

Jinhua Liu

Jari Tapio Vikberg

Erik A Eriksson

Martin Hessler

Magnus Stattin

Stephen J Grant

Karl Norrman

Qianxi Lu

Johan Torsner

Gabor Fodor

Walter Müller

Janne Peisa

Joachim Sachs

Ali S Khayrallah

Gen Li

Thorsten Lohmar

Niclas Wiberg

Johan Furuskog

Jonas Fröberg Olsson

Niklas Johansson

Hai Feng Wang

Zhan Zhang

Andreas Bergström

Pontus Wallentin

Patrik Rugeland

Zhipeng Lin

Elias Jonsson

Martin Johansson

Karl Werner

Mikael Coldrey

Patrik Torgny Karlsson

Jonas Kronander

Mårten Ericson

Shehzad Ali Ashraf

Fredrik Lindqvist

Robert Mark Harrison

Yutao Sui

Anders Furuskär

Andreas Nilsson

Asbjörn Grövlen

Anders Wallén

Bo Lincoln

Ravikiran Nory

SaiRamesh Nammi

Jan Christoffersson

Ali Behravan

Jingya Li

Gregory Edward Bottomley

Shaohua Li

Henrik Enbuske

Lars M Andersson

Muhammad Ali Kazmi

Jung-Fu Cheng

Havish Koorapaty

Leif Wilhelmsson

George Jöngren

Johan Mikael Bergman

Min Wang

Oumer Teyeb

Bo Göransson

Henrik Sjöland

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.

Method and apparatus for random access

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

A method of signal block reception with automatic gain control (AGC) for a receiver is disclosed. The receiver is configured for at least a sleep mode and an active mode. The signal blocks are non-adjacent in time, and each signal block is configured to be received in entirety using a valid AGC setting determined based on a previous signal block. The method comprises, when switching from the sleep mode to the active mode for continuous reception of a signal block, receiving a first set of samples of the signal block, determining an applicable AGC setting based on the first set of samples of the signal block, and receiving a second set of samples of the signal block using the applicable AGC setting determined based on the first set of samples. Corresponding apparatus, receiver, wireless communication device and computer program product are also disclosed.

Signal block reception with automatic gain control adjustment

A method, system, network node and wireless device are disclosed. In one or more embodiments, A network node configured to communicate with a wireless device is provided. The network node includes processing circuitry configured to: determine a short DRX configuration based at least on a delay value constraint associated with the wireless device, and transmit an indication of the short DRX configuration and a long DRX configuration where the short DRX configuration corresponds to a shorter cycle length than a cycle length of the long DRX configuration.

Adaptation of active-time PDCCH monitoring using short discontinuous reception (DRX)

Methods and apparatuses are disclosed for layer reduction criteria. In one embodiment, a network node is configured to determine a number of multiple-input multiple-output, MIMO, layers for a wireless device, WD, the determined number of MIMO layers being adjusted as compared to a maximum number of MIMO layers for the wireless device based at least in part on at least one parameter associated with at least one of the wireless device and the network node; and signal an indication of the determined number of MIMO layers to the wireless device. In one embodiment, a wireless device is configured to receive an indication of a number of multiple-input multiple-output, MIMO, layers, the indicated number of MIMO layers being adjusted as compared to a maximum number of MIMO layers for the wireless device based at least in part on at least one parameter associated with at least one of the wireless device and a network node.

Layer reduction criteria

Methods and apparatus are described for adapting wake-up signal monitoring to optimize power saving performance. In one embodiment, a UE can be configured to selectively skip WUS monitoring based on a current UE context. In another embodiment, WUS/PDCCH monitoring and/or other UE procedure can be adapted based on a statistic related to the wake-up signals transmitted by the base station to the UE.

Wake-up signal monitoring optimization

There is provided mechanisms for transmission of MU-MIMO signals. A method is performed by a network node. The method includes obtaining parameter values of statistics of co-scheduled user equipment served by the network node. The statistics at least pertains to mobility of each of the user equipment. The method includes dynamically selecting a multi-user transmission configuration from candidate multi-user transmission configurations. Each candidate multi-user transmission configuration specifies at least a digital precoding mode selected from candidate digital precoding modes and an analog beam steering mode selected from candidate analog beam steering modes. The multi-user transmission configuration is selected according to the parameter values and a configured mapping of the parameter values to the candidate multi-user transmission configurations. The method includes transmitting the MU-MIMO signals towards the user equipment using the selected multi-user transmission configuration.

Transmission of MU-MIMO signals

Growing community of inventors

Malmö, Sweden

Andres Reial