Telefonaktiebolaget Lm Ericsson (publ)

Jan Christoffersson

Min Wang

Mårten Ericson

Jinhua Liu

Mats Folke

Henrik Enbuske

Johan Rune

Robert Mark Harrison

Zhipeng Lin

Henrik Sahlin

Robert Baldemair

Stefan Parkvall

Icaro L J Da Silva

Andres Reial

Janne Peisa

Zhang Zhang

Marco Belleschi

Jose Luis Pradas

Johan Axnäs

Tommy Arngren

Muhammad Ali Kazmi

Iana Siomina

Erik G Larsson

Arne Simonsson

Stefan Wänstedt

Paul Schliwa-Bertling

Havish Koorapaty

Yi-Pin Eric Wang

Rui Fan

Stephen J Grant

Qingyu Miao

Andreas Höglund

Jonas Fröberg Olsson

Niklas Johansson

Peter Alriksson

Reem Karaki

Peter Ökvist

Per Skillermark

Asbjörn Grövlen

Tuomas Tirronen

Hans Hannu

Björn Hofström

Gunnar Bergquist

Jonas Sedin

Marten Ericson

Robert Karlsson

Krister Svanbro

Svante Bergman

Guido Roland Hiertz

Vincent Huang

Edgar Ramos

Mai-Anh Phan

Magnus Thurfjell

Waikwok Kwong

Kjell Larsson

Sara Landström

Naga Vishnu Kanth Irukulapati

Tai Do

Tomas Jönsson

Shunliang Zhang

Xuejun Cai

Majid Gerami

Mats Blomgren

Luca Feltrin

Victor Farias Monteiro

Bikramjit Singh

Narendar Madhavan

Andreas Hoglund

Mattias BERGSTRÖM

Yazid Lyazidi

David Henrikssson

Márten Ericson

Màrten Ericson

Liwei Qiu

Andreas HÖGLUND

David Henriksson

A method and a User Equipment, UE, for handling multiple Bandwidth Parts, BWPs, when being connected to a wireless network. The UE is configured to obtain from the network a configuration for use when autonomously switching from a source BWP to a target BWP, said configuration indicating one or more transmissions that the UE can start in the target BWP during a BWP switch. When detecting that the UE is subjected to a trigger event in the source BWP, wherein the trigger event triggers an autonomous BWP switch, the UE transmits to the network in the target BWP a BWP switch request, and the UE also performs at least one further transmission indicated by the obtained configuration.

Method and user equipment for communication with a wireless network for handling multiple bandwidth parts, BWP

A network node, a wireless communication device and methods therein for monitoring interferences between a number of groups of wireless communication devices and configuring SL resources for the number of groups of wireless communication devices in a wireless communication network are disclosed. The network node configures a discovery signal associated with an identity and configures which wireless communication devices in which groups to transmit and/or receive the configured discovery signal. The network node determines whether the number of groups of wireless communication devices () are isolated from each other based on a report related to the discovery signal and decides whether or not to reconfigure the SL resources for the number of groups or rearrange the wireless communication devices in the groups based on the determined result on whether the number of groups of wireless communication devices () are isolated from each other.

Network node, wireless communication device and methods for configuring side-link resources in wireless communication network

The present disclosure relates to telecommunications. In one of its aspects, the disclosure concerns a method in a coordinator User Equipment (UE) for registering a group of UEs to a wireless communications system. The coordinator UE represents the group of UEs. The method comprises transmitting, to a Radio Access Network (RAN) node, a message comprising a group IDentity (ID) to initiate an authentication and security procedure to register the group of UEs to the wireless communications system. The group ID identifies the group of UEs.

Apparatuses and methods for registering a group of user equipment

Embodiments include methods, performed by a user equipment (UE), for uplink (UL) transmission on a shared channel in a cell of a radio access network (RAN). Such methods include determining that the shared channel is unavailable for UL transmission of pending data during a first transmission opportunity. This determination can be based on performing a listen-before-talk (LBT) procedure on the shared channel. Such methods include determining that further data for UL transmission is available before a second transmission opportunity that is after the first transmission opportunity, and determining whether the pending data or the further data should be prioritized for UL transmission during the second transmission opportunity. This prioritization determination can be based on various factors. Such methods can also include transmitting the pending data or the further data, during the second transmission opportunity, based on the prioritization determination. Other embodiments include UEs configured to perform such methods.

Collision handling of configured grant based autonomous uplink transmissions

A method performed by a wireless device for determining an identity of the wireless device, MsgB RNTI, in a wireless communications network during a random access procedure is provided. The wireless device transmits a random access preamble on a RACH at a random access occasion. It also transmits a message on a PUSCH that corresponds to the random access preamble. Further, the wireless device determines an MsgB RNTI as the sum of a first identity, RA-RNTI, and an offset that is an integer greater than 1, wherein the RA-RNTI is based on a sum comprising terms corresponding to at least the index of a first OFDM symbol, the index of a frequency resource, and the index of a first time slot that identifies the time/frequency resources of the random access occasion.

Wireless device, a network node, and methods therein for determining an identity of a wireless device during a random access procedure

Buffer Status Reports (BSR), by which the network is made aware of uplink transmission needs of wirless devices, are specifically enabled to be transmitted using 2-step Random Access (RA), to reduce latency and network resource use. In one embodiment, 2-step RA configurations tailored to BSR-transmissions are introduced. These may, for example, use a subset of the configured resources in the configured 2-step RA resources for BSR. In another embodiment, conditions for triggering BSR over 2-step RA, depending on the traffic, are introduced. For example, the priority or the the delay budget of the traffic may be used to determine whether a BSR over 2-step RA should be triggered. In another embodiment, simplified procedures when receiving the response to MsgA are introduced. These may include, for example, not transmitting a full MsgB, but rather having the UE receive an UL grant.

Efficient buffer status reporting over 2-step RA

The present disclosure relates to telecommunications. In one of its aspects, the disclosure concerns a method in a source User Equipment (UE) for group transmissions in a wireless communications system comprising a group of UEs, including the source UE. The group is assigned a first group IDentity (ID). The source UE has data to be cooperatively transmitted by the group of UEs in a group transmission to a Radio Access Network (RAN) node. The method comprises transmitting, to the group of UEs, a SideLink (SL) message. The SL message comprises the data to be transmitted to the RAN node, a source UE ID identifying the source UE, the first group ID identifying the group of UEs receiving the data and an indicator indicating that the data comprised in the SL message is to be transmitted cooperatively by the group of UEs in a group transmission to the RAN node.

Apparatuses and methods for 2-hop cooperative group transmissions

A wireless device is configured for use in a wireless communication network. The wireless device obtains a configuration that governs how the wireless device is to monitor for and/or attempt to recover from consistent uplink listen-before-talk (LBT) failure that occurs during a mobility procedure triggered by the wireless device. According to the obtained configuration, the wireless device monitors for and/or attempts to recover from consistent uplink LBT failure occurring during the mobility procedure.

Listen-before-talk failure in a wireless communication network

Techniques are provided to enable use of more than two preamble group Bs during random access (RA) for connected UEs. This flexibility is achieved by configuring the active BWP to overlap with the 2-step RA resources on the initial BWP, configuring different sizes of preamble group B in the initial BWP and the active BWP, a allowing connected UEs in the active BWP to use the MsgA PRACH and MsgA PUSCH resources in the initial BWP without switching active BWP.

Random access resource configuration in different bandwidth parts for two-step random access

Method and device(s) for supporting charging relating to a group transmission in a wireless communication network, said group transmission involving a group of wireless devices configured to, via one or more direct communication links between each other, participate in data transmission between a source wireless device and the wireless communication network. Data is transmitted on a device specific group bearer in a core network of the wireless communication network, which second data relates to the group transmission and to a wireless device of the group. Said device specific group bearer being configured specifically for data transmission usage relating to the wireless device when the data transmission is part of the group transmission.

Method and arrangements relating to group transmission in a wireless communication network

A method performed in a User Equipment (UE) is disclosed, the UE being operable to connect to a communication network. The method includes transmitting a path request message requesting a path for transmission of data to the communication network, the path request message including an identifier of the UE, and receiving at least one path message including an ordered list of identifiers of mobile nodes and of a base station node of the communication network that form a path for transmission of data from the UE to the communication network. The method further includes selecting a path from the received at least one path message and transmitting data to the first mobile node in the selected path. Also disclosed are a method performed by a mobile node such as an Unmanned Aerial Vehicle (UAV), a UE, a mobile node and computer program product.

Communication with a network via mobile nodes

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

Methods and apparatus are provided for selecting a next hop for a data packet. In one aspect, a method in a first node of selecting a next hop for a data packet includes determining a volume that is at least partially located between a first communication device and a destination node of the data packet, determining at least one moveable communication device located within the volume, and selecting one of the at least one moveable communication device as a next hop for the data packet after the first communication device.

Selecting a next hop for a data packet

The present disclosure relates to a method performed by a UE () for handling 2-step and 4-step RA procedures in a communications system (). The UE () transmits a msgA comprising a preamble and a msg3 to a network node (). The UE () applies a 2-step RA procedure when transmitting msgA. Based on a criterion, the UE () determines to fallback from the 2-step RA procedure to a 4-step RA, procedure. The criterion is that a maximum number of msgA transmissions has been exceeded or receipt of an indicator indicating that the UE () should fallback from the 2-step RA procedure to the 4-step RA procedure.

UE, network node and methods for handling 2-step and 4-step random access procedures

A wireless device configured to perform a 2-step random access, RA, procedure transmits () a message according to the 2-step RA procedure, the message comprising a first random access preamble. The wireless device receives (), during a RA response window following the transmitting of the message, a Medium Access Control, MAC, subheader. Using one or more bits or fields included in the received subheader, the wireless device determines () that it should take action according to any one of the following: backing off, according to a back-off parameter, for a subsequent RA attempt according to the 2-step RA procedure; falling back to a 4-step RA procedure by transmitting a new RA preamble; and falling back to a 4-step RA procedure after backing off according to a back-off parameter, by transmitting a new random access preamble after the back-off.

Back-off for 2-step RA procedure

Growing community of inventors

Luleå, Sweden

Jan Christoffersson