Nokia Technologies Oy

Matha Deghel

Keeth Saliya Jayasinghe Laddu

Zexian Li

Timo Koskela

Klaus Hugl

Sami Hakola

Youngsoo Yuk

Sigen Ye

Chunli Wu

Mihai Enescu

Filippo Tosato

Naizheng Zheng

Samuli Heikki Turtinen

Frank Frederiksen

Lars Dalsgaard

Sami-Jukka Hakola

Daniela Laselva

Emad N Farag

Dawid Koziol

Ping-Heng Kuo

Philippe R Sehier

Anna Pantelidou

Ahlem Khlass

Keeth Saliya Jayasinghe

Dimitri Gold

Keeth Saliya Laddu Jayasinghe

Kamakshi Lakshminarayanapuram Krishnakumar

The present disclosure relates generally to the field of wireless communications and, in particular, to techniques for issuing criteria-based retransmission grants for pending Media Access Control (MAC) Protocol Data Units (PDUs) generated and buffered in a user equipment (UE) in a wireless communication network. In particular, the UE is configured with at least one criterion for determining which of the pending MAC PDUs stored in the UE (e.g., in the HARQ buffers) could be transmitted by using radio resources of a retransmission grant issued by a network node. In other words, the UE should determine whether at least one of the pending MAC PDUs meets the at least one criterion. The at least one criterion may be signalled to the UE either in the retransmission grant or independently from the retransmission grant. If none of the pending MAC PDUs meets the at least one criterion, it is also allowed to apply the at least one criterion to a new MAC PDU, thereby making it possible to use the retransmission grant issued by the network node as a new transmission grant (provided that the new MAC PDU meets the at least one criterion). Thus, by using such a retransmission grant, it is possible to provide efficient MAC PDU recovery and resource usage.

Criteria-based retransmission grants for pending media access control protocol data units

Example embodiments of the present disclosure relate to applying timing advance during random access procedure. The first apparatus transmits, to a first apparatus, a channel state information (CSI) report configuration comprising a first sub-configuration and a second sub-configuration; and receives, from the first apparatus and based at least in part on the first and second first priority reporting levels, a CSI report associated with at least one of the first sub-configuration or the second sub-configuration. Impacts to the other CSI reporting caused by introducing the sub-configuration would be minimized.

Channel state information reporting

Systems, methods, apparatuses, and computer program products for enabling beam diversity for physical uplink shared channel (PUSCH) repetition under multi-transmission points (TRP). A method may include receiving, from a network, a configuration with at least one time offset to account for at least one delay on switching from one transmit beam to another transmit beam, wherein the configuration defines at least one rule applicable to the at least one time offset. The method may also include determining a need for the at least one time offset between consecutive repetitions based on the configuration and the use of transmit beams for the consecutive repetitions. The method may further include applying, based on the determination, the at least one time offset between the consecutive repetitions. Further, a time domain allocation of at least one repetition of the consecutive repetitions may be changed to accommodate the at least one time offset.

Enabling beam diversity for physical uplink shared channel repetition

There are provided apparatuses, methods and computer program products. In accordance with an embodiment, there is disclosed a method comprising obtaining from a wireless communication network at least two semi persistent scheduling configurations; obtaining from the wireless communication network an indication which of the at least two semi persistent scheduling configurations is a primary semi persistent scheduling configuration and which is a secondary semi persistent scheduling configuration; monitoring reception of a downlink channel on the primary semi persistent scheduling configuration; decoding a transport block carried on the downlink channel; and examining whether the decoding of the transport block was successful. The method further comprises starting monitoring reception of a downlink channel on the secondary semi persistent scheduling configuration, if the examination indicates an unsuccessful decoding of the transport block.

Enhanced downlink semi persistent scheduling operation for multi-transmission reception point

Systems, methods, apparatuses, and computer program products for flexible TCI state indications. An apparatus may include at least one processor and at least one memory including computer program code. The at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus at least to receive, on a CORESET belonging to a first CORESET group, DCI indicating at least one TCI state. One or more of the at least one TCI states may be mapped to at least a second CORESET group.

Flexible TCI state indication under unified TCI framework

A method includes: receiving, from a network, a channel state information report configuration including one or more sub-configurations, wherein a sub-configuration of the one or more sub-configurations is associated with at least one channel state information reference signal antenna port subset; determining, for a calculation of one or more channel state information quantities for the sub-configuration corresponding to or indicating the at least one channel state information reference signal antenna port subset, a hypothetical physical downlink shared channel by considering an antenna port restriction based on the at least one channel state information reference signal antenna port subset the sub-configuration corresponds to or indicates; and calculating the one or more channel state information quantities for the sub-configuration, based on the formed hypothetical physical downlink shared channel.

Enhanced CSI calculation considering spatial adaptation

Systems, methods, apparatuses, and computer program products for enhanced handling time alignment timer at transmission configuration indicator state switch are provided. For example, a method can include performing a transmission configuration indicator state switch to a network element. The method can also include determining whether an uplink timing is aligned with respect to the network element. The method can further include determining whether a random access channel procedure is needed to adjust uplink timing in response to the determining that the uplink timing is not aligned. The method can additionally include adjusting the uplink transmit timing in response to a result of the determining whether random access channel procedure is needed to adjust uplink timing.

Enhanced time alignment timer at transmission configuration indicator state switch

The present disclosure relates to a solution on cell off indication via DCI. In particular, a group common DCI format is used to indicate an activation/deactivation of the cell off for entering network energy saving mode. DCI in the group common DCI format may include separate bits for a first indication regarding the activation/deactivation of the cell off for entering network energy saving mode and a second indication regarding the activation/deactivation of cell DTX/DRX. Alternatively, the DCI may include common bits for the first and second indications with a flag to indicate which indication. In this way, the cell off for entering network energy saving mode can be indicated more efficiently.

Cell off indication via downlink control information

A method comprises causing a message to be transmitted from a communications device to a transmission reception point during a random access procedure. The message comprises information identifying a plurality of different beam directions. The method further comprises receiving a response to the message from a plurality of different beam directions.

Apparatus, method, and computer program

Example embodiments of the present disclosure provide a solution for handling expiry of at least one time alignment timer (TAT) of multiple timing advance groups (TAGs) associated with a serving cell. In an example method, the terminal device receives determines at least two TAGs for a serving cell, wherein the at least two TAGs comprise a primary TAG and a secondary TAG. The terminal device determines whether at least one TAT of the at least two TAGs has expired and maintain, based on determining that the at least one TAT has expired, one of the primary TAG and the secondary TAG. In this way, only a single TAG is maintained once the terminal device has single TAT/no TAT running removing ambiguities in RA procedure/UL signal transmissions. Since the network is aware of the TAT expiry, it knows behaviour of the terminal device and can act accordingly.

Handling TAT expiry of multiple TAGs

Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for dynamic antenna port related configuration. The method comprises: receiving, at a terminal device and from a network device, a first indication of a plurality of subsets of antenna ports; and receiving, at the terminal device and from the network device, a second indication of disabling at least one of the plurality of subsets of antenna ports.

Spatial configuration adaptation

Embodiments of the present disclosure disclose devices, methods and apparatuses for spatial adaption. A terminal device obtains a spatial pattern configuration of reference signal transmission from a network device. The spatial pattern configuration is indicative of whether a plurality of spatial patterns have different energy levels. The terminal device then transmits a measurement report to a network device. The measurement report comprises one or more spatial patterns measured by the terminal device based on the spatial pattern configuration.

Devices, methods and apparatuses for spatial adaptation

According to one example embodiment, a method may include receiving, by a user equipment, at least one network entity failure indication configuration. The method may further include detecting, by the user equipment, that at least one first network entity satisfies at least one beam-failure condition. The method may further include selecting, by the user equipment, one or more of at least one resource and at least one parameter based on the at least one received network entity failure indication configuration. The method may further include transmitting, by the user equipment, the at least one indication of the at least one first network entity that satisfies the at least one beam-failure condition to at least one second network entity.

Transmission reception point-specific beam failure indications in multi-transmission reception point scenarios

A method includes determining, by a user device in a wireless network, at least two physical uplink shared channel (PUSCH) allocations overlapping in time domain and corresponding to at least two PUSCH transmissions for use in transmitting at least one uplink control information (UCI); and mapping, by the user device, the at least one UCI to at least one of the following: one of the at least two PUSCH allocations; separately to each of the at least two PUSCH allocations; or across the at least two PUSCH allocations; wherein the mapping is based on at least one of: one or more configured or pre-defined rules, or at least one an indication received by the user device from a network node, and wherein each of the at least two PUSCH allocations includes resources allocated to the user device for a PUSCH transmission.

Enhanced uplink control information mapping to uplink channel allocations

According to an example embodiment, a method may include receiving, by a user device in a wireless network, an uplink grant, the uplink grant indicating granted resources having a priority level; determining, by the user device, whether or not information to be transmitted has a priority level that matches the priority level of the granted resources; and transmitting, by the user device, the information via at least a portion of the granted resources, and an indication of whether or not a priority level of the information matches a priority level of the granted resources.

Growing community of inventors

Paris, France

Matha Deghel