Telefonaktiebolaget Lm Ericsson (publ)

Sina Maleki

Andres Reial

Ali Nader

Ilmiawan Shubhi

Ajit Nimbalker

Niklas Andgart

Gang Zou

Pramod Jacob Mathecken

Ravikiran Nory

Robert Baldemair

Yutao Sui

Johan Nilsson

Joao Vieira

Martin Van Der Zee

Muhammad Ali Kazmi

Jung-Fu Cheng

Johan Rune

Leif Wilhelmsson

Claes Tidestav

Henrik Sjöland

Santhan Thangarasa

Kazuyoshi Uesaka

Kristofer Sandlund

Joao Viera

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

According to some embodiments, a method performed by a wireless device operating in idle/inactive mode comprises receiving assistance information from a network node, wherein the assistance information comprises a time-domain resource guarantee for a recurrent wakeup activity; and based on the assistance information, determining whether to enter a power saving mode of operation between receiving control information associated with the recurrent wakeup activity and receiving data information associated with the recurrent wakeup activity.

Recurrent data reception in idle/inactive UE

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

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

Embodiments include methods for a user equipment (UE) to perform different operations based on detection of wake-up signal (WUS) transmissions from a network node in a radio access network (RAN). Such methods include determining whether a WUS transmission, from the network node, is detected during a particular WUS monitoring occasion (WMO). Such methods also include, based on determining that the WUS is detected during the particular WMO, performing one or more first operations during a first time period associated with the particular WMO; and based on determining that the WUS is not detected during the particular WMO, performing one or more second operations during a second time period. Various first and second operations can be performed, with the first and second operations differing in some manner. The first and second time periods can be the same or different. Embodiments also include complementary methods performed by a network node.

Wake-up signal (WUS) controlled actions

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

There is provided a method of operating a wireless device, UE, in a communication network. The method includes transmitting, to the communication network, a first capability indication that indicates that the UE supports a maximum number of MIMO layers for a serving cell configuration on a carrier and the second capability indication that indicates that the UE supports a maximum number of MIMO layers for a bandwidth part, BWP, of the serving cell. The method further includes receiving a configuration that includes a first higher layer parameter associated with the maximum number of MIMO layers for a serving cell and a second higher layer parameter associated with the maximum number of MIMO layers for a specific BWP part of the serving cell, wherein the configuration is based on the first capability indication and the second capability indication. Furthermore, there is provided a UE, a RAN node and a method therefore.

Capability handling related to per-BWP MIMO layer indication

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

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.

Growing community of inventors

Malmö, Sweden

Sina Maleki