Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Koninklijke Philips Corporation N.v.

Robin Rajan Thomas

Cornelius Hellge

Thomas Fehrenbach

Thomas Schierl

Thomas Wirth

Sarun Selvanesan

Baris Göktepe

Roya Ebrahim Rezagah

Eiko Seidel

Lars Thiele

Thomas Wiegand

Baris Goektepe

In the field of wireless communication systems or networks, the design of resource pools as they may be used in sidelink communications among users of the wireless communication system, for example in V2X applications, is described. In particular, an improved resource pool design, for example for resource pools to be used in sidelink communications in V2X services in view of the advantages defined by the NR 5G standard, is presented.

NR V2X resource pool design

A user device, UE, for a wireless communication system is described. The wireless communication system includes a plurality of user devices, UEs. The UE communicates with one or more transmitting UEs using a sidelink, supports a certain number of HARQ processes, and buffers one or more transmissions for each HARQ process. During a unicast communication with a transmitting UE using the sidelink, the UE receives from the transmitting UE a transmission during a transmission time interval, the transmission associated to control data, e.g. SCI, including a HARQ process ID, buffers the received transmission for the HARQ process, and combines the buffered transmissions prior to decoding. In case a successfully identified transmission is not buffered, the UE indicates to the transmitting UE that the transmission is not buffered at the UE.

V2X HARQ process management

Communication devices are provided that facilitate receiving information units and providing feedback to other communication devices.

Communication device, system and method for communication using feeback

The present invention concerns a novel form of communication within a cellular wireless communication network. One aspect of the invention concerns a User Equipment for a cellular network, wherein the UE inter alia includes a first interface for UE-to-Basestation communication configured to communicate with a base station of the cellular network and a second interface for UE-to-UE communication configured to communicate with one or more other UEs of a UE-Group to which the UE belongs. According to the invention the UE is configured to receive via its first interface configuration data for configuring its second interface, and to coordinate, via the second interface, a communication within the UE Group.

UE groups, UE group manager UEs and UE group member UEs

A wireless communication system includes one or more base stations, and a plurality of UEs for a sidelink communication using sidelink resources. The UEs includes a transmitting UE and a receiving UE using a subset of the sidelink resources of the wireless communication system. The receiving UE sends over the sidelink a sidelink feedback to the transmitting UE. The sidelink feedback indicates for a data transmission a successful or non-successful reception at the receiving UE. The transmitting UE reports the sidelink feedback to a base station. The base station provides to the transmitting UE, responsive to the sidelink feedback, sidelink resources for a possible retransmission of a data packet over the sidelink to the receiving UE. The reporting of the sidelink feedback to the base station by the transmitting UE is activated or deactivated responsive to one or more conditions.

Advanced feedback in sidelink

The present document relates to techniques (e.g., devices and methods) for signalling, e.g., for new radio unlicensed (NR-U). A user equipment (UE) exchanges control signals with a first cell and a second cell. The first cell is a licensed or unlicensed cell and the at least one second cell is an unlicensed cell. The UE exchanges control signals with the first cell and, meanwhile:

Techniques for signaling, e.g., for new radio unlicensed (NR-U)

A wireless communication system includes a plurality of user devices, UEs, and at least one logical group defined in accordance with one or more logical group criteria. The logical group includes a plurality of member UEs to be connected via sidelink for sidelink communication with each other, and all member UEs of the logical group have assigned the same destination identification, ID, the destination ID being unique for the logical group.

Groupcast procedures for V2X

An apparatus for a wireless communication system is describes. The wireless communication system includes one or more base stations and a plurality of user devices, UEs. The apparatus is configured to be connected to one or more UEs via a sidelink for a sidelink communication with the one or more UEs, the apparatus and the one or more UEs forming a group of UEs and using a set of group resources to be used for the sidelink communication within the group of UEs. In case a base station does not provide resource allocation configuration or assistance, the apparatus is configured to select resources from a set of resources provided by the wireless communication system so as to alter or completely change the set of group resources to be used for the sidelink communication within the group of UEs.

V2X dynamic groupcast resource allocation

An apparatus for a wireless communication system includes a plurality of base stations and a plurality of UEs. The apparatus is to be connected to a base station for a communication with the base station, and one or more UEs via a sidelink for a sidelink communication. The apparatus and the one or more UEs form a group of user devices. The apparatus is to request from a base station, directly or indirectly, resources for a sidelink communication with the one or more UEs of the group, and is to obtain from the base station, directly or indirectly, information about at least one set of resources to be used for the sidelink communication within the group. Each of the sets of resources is only or exclusively used within the group, and the group members include the apparatus and the one or more UEs of the group.

Resource pool design for group communications

An apparatus for a wireless communication system is connected to at least one user device (UE) via a sidelink for a sidelink communication. For a unicast transmission, the apparatus transmits a sidelink frame having a certain frame duration. A first part of the sidelink frame includes a control signaling. The control signaling indicates to the UE whether a feedback is to be returned to the apparatus. The feedback indicates a successful reception of data at the UE or a sidelink channel condition. If a feedback is desired, the apparatus transmits in the first part of the frame, using the control signaling, an indication that the feedback is to be provided by the UE such that a duration of the control signaling is shorter, by a remaining duration, than the frame duration, and receives from the UE, during the remaining duration, the feedback.

Sidelink feedback

A concept for handovers in cellular networks, a concept for improved handling of tracking/paging areas for, for instance, user entities in inactive modes and a concept for enabling intelligent route selection in cellular networks are presented.

Preemptive handover preparation and tracking/paging area handling and intelligent route selection in a cellular network

In the field of wireless communications, approaches for a reallocation and reservation of resources for high priority communications, for a Quality of Service feedback, and for handling certain events in a wireless communication network are described. Embodiments relate to the implementation of the approaches for entities of a wireless communication network or system performing sidelink communications. In particular, improved approaches for a reallocation and reservation of resources for high priority communications, for a Quality of Service feedback, and for handling certain events in a wireless communication network are presented.

Reallocation and reservation of resources for high priority communication and quality of service feedback

A wireless communication system includes a plurality of user devices, UEs, configured for a sidelink communication using resources from a set of sidelink resources of the wireless communication system. The plurality of UEs includes at least one transmitting UE and at least one receiving UE, the transmitting UE and the receiving UE configured to use at least a subset of the sidelink resources of the wireless communication system for the sidelink communication. The wireless communication system is configured to allow a data duplication on the sidelink, wherein the data duplication on the sidelink is activated or triggered dependent on one or more of a sidelink quality of the sidelink between the transmitting UE and the receiving UE, and/or an occupancy of the sidelink resources, and/or data received by a network element/network function, and/or the application service running on one of the UEs.

NR V2X reliability enhancements

A wireless communication system includes one or more base stations, and a plurality of user devices, UEs. The plurality of UEs includes a plurality of first UEs operating in a first mode and a plurality of second UEs operating in a second mode. The first UEs and the second UEs are configured for a sidelink communication. A sidelink transmission includes a sidelink frame having a control region and a data region. The control region includes a first control region and a second control region, the first control region for transmitting control data of a first UE, the second control region for transmitting control data of a second UE, and the first and second control regions including a plurality of a common resources.

Growing community of inventors

Berlin, Germany

Robin Rajan Thomas