Telefonaktiebolaget Lm Ericsson (Publ)

Yunxi Li

Qianxi Lu

Stefano Sorrentino

Mats Folke

Stefan Wänstedt

Marco Belleschi

Zhang Zhang

Magnus Stattin

Fredrik Gunnarsson

Johnny Karout

Iana Siomina

Shiwei Gao

Xinghua Song

Henrik Enbuske

Ricardo Blasco Serrano

Congchi Zhang

Eric Andersson

Qingyu Miao

Zhenshan Zhao

Massimo Condoluci

Bastian Cellarius

The present application generally relates to wireless communication technology. More particularly, it relates to a method and apparatus for controlling sidelink (SL) Quality of Service (QoS). According to one or more embodiments, a method for controlling sidelink (SL) Quality of Service (QoS) comprising the following steps carried out at a User Equipment (UE): a) generating QoS requirement from characteristics for one or more packets to be transmitted via a sidelink; b) determining bearer configuration corresponding to the QoS requirement; and c) performing SL transmission on the basis of the bearer configuration.

Method and apparatus for controlling sidelink QoS

A method in a wireless device is disclosed. The method comprises sending a scheduling request to a network node, and receiving, from the network node in response to the scheduling request, a grant of uplink resources. The method further comprises determining whether the granted uplink resources are at least equal to or larger than the resources required for transmission of both a buffer status report (BSR) and a sidelink BSR, and upon determining that the granted uplink resources are at least equal to or larger than the resources required for transmission of both the BSR and the sidelink BSR, communicating the BSR, and the sidelink BSR to the network node in a single medium access control (MAC) protocol data unit (PDU).

Coordination between prose BSR and cellular BSR

Embodiments of the present disclosure provide a method, apparatus and computer program product for sidelink transmission control. The method implemented at a first user equipment which supports a first radio access technology comprises: determining a sidelink transmission mode for transmitting, wherein the sidelink transmission mode is one of a first mode corresponding to the first radio access technology and a second mode corresponding to a second radio access technology; and transmitting a sidelink signal according to the sidelink transmission mode using a sidelink resource configured by a network node which serves the first user equipment.

Method and apparatus for sidelink transmission control

A method by a first function implemented on a first network node is provided for dynamic service negotiation. The method includes transmitting a service description to a second function to enable optimized delivery of a service based on the service description by the second function. The service description includes information associated with one or more delivery requirements for the service.

Procedure for dynamic service negotiation

A method of operating a network node grants a first resource for UE transmissions and identified by a time identifier mapped to a first synchronization reference and by a frequency identifier. The time and frequency identifiers are identified by a relative resource identifier. A second resource is reserved for transmissions by the UE, and is identified by the time identifier mapped to a second synchronization reference and by the frequency identifier. The first and second synchronization references can be used by a UE for transmissions synchronization. The relative resource identifier is sent to the UE for use in controlling transmissions. Responsive to information reported by the UE indicating the UE is using the second synchronization reference for transmissions synchronization, a new relative resource identifier is sent that identifies a time identifier mapped to the second synchronization reference that corresponds to a location of the second resource and identifies the frequency.

Resource allocation methods and nodes with self-adapting to different synchronizations

There is disclosed herein systems, methods, and apparatuses for floor control in a push to talk communication session. According to certain embodiments, a method for floor control comprises, prior to transmitting a first message to one or more wireless devices, determining, at a first wireless device, a priority of the first message. The method also comprises determining, at the first wireless device, whether a floor is available for transmitting the first message based on the determined priority of the first message. The method additionally includes, upon the floor being available, transmitting the first message from the first wireless device to the one or more wireless devices. The method additionally includes transmitting the first message from the first wireless device without the first wireless device first requesting the floor from a remote floor controller.

System, method, and apparatus for floor control during push to talk

According to some embodiments, a method in a first wireless device of relaying data from a second wireless device to a wireless communication network comprises: obtaining data transmission information associated with data to be relayed from the second wireless device to the wireless communication network; requesting resources from the wireless communication network according to the data transmission information before receiving the data to be relayed; receiving an indication of resources from the wireless communication network; receiving the data from the second wireless device; and transmitting the data to the wireless communication network using the indicated resources. In particular embodiments, the data transmission information includes at least one of an amount of data to be relayed from the second wireless device to the wireless communication network and an estimated time for receiving the data from the second wireless device at the first wireless device.

Prose relay delay reduction

A technique relating to resource configuration in a wireless communication network. A terminal device in the wireless communication network receives information about supplemental resource from a source cell. Then the terminal device determines a time interval, in which the supplemental resource is available to the terminal device, in a transition period of a handover from the source cell to a target cell based on a timer associated with a random access procedure in the handover. In this way, the terminal device may use the supplemental resource during the handover.

Method and device for resource configuration in handover

The disclosed embodiments herein relate to a method in a first communication device, a first communication device, a method in a second communication device and a second communication device and computer programs respectively. The method in the first communication device comprises: receiving from the second communication device, a discovery message at Layer 1 of the first communication device; identifying a message format of the received discovery message; decoding the received discovery message according to the identified message format; and sending the decoded discovery message to higher layers, L2/L3, of the first communication device.

Apparatuses and methods for discovery message formats distinction

According to some embodiments, a method in a first wireless device of relaying data from a second wireless device to a wireless communication network comprises: obtaining data transmission pattern information associated with data to be relayed from the second wireless device to the wireless communication network; requesting resources from the wireless communication network according to the data transmission pattern information; receiving an indication of resources from the wireless communication network; receiving the data from the second wireless device; and transmitting the data to the wireless communication network using the indicated resources. In particular embodiments, obtaining the data transmission pattern information comprises receiving the data transmission pattern information from the second wireless device; determining the data transmission pattern based on a service type or protocol associated with the data to be relayed; or determining the data transmission pattern based on a LTE version supported by the second wireless device.

Prose relay resource optimization

In accordance with certain embodiments, there is disclosed herein a method for decoding a received message. The method comprises determining one or more non-reserved group IDs associated with a first wireless device. The method additionally includes participating in a communication session based on a first group ID of the one or more non-reserved group IDs associated with the first wireless device. The method further includes receiving a first message from a second wireless device. The first message comprises a second group ID. The second group ID is not among the one or more non-reserved group IDs associated to with the first wireless device. The method also comprises determining the second group ID is a reserved group ID. The method additional comprises decoding the first message based on the second group ID.

Decoding messages based on group IDS

There is disclosed a method for operating a network node () in a wireless communication network, the method comprising configuring at least one D2D discovery transmitting pool and/or at least one D2D discovery receiving pool. There are also disclosed related methods and devices.

D2D discovery

A method in a wireless device is disclosed. The method comprises sending a scheduling request to a network node, and receiving, from the network node in response to the scheduling request, a grant of uplink resources. The method further comprises determining whether the granted uplink resources are at least equal to or larger than the resources required for transmission of both a buffer status report (BSR) and a sidelink BSR, and upon determining that the granted uplink resources are at least equal to or larger than the resources required for transmission of both the BSR and the sidelink BSR, communicating the BSR and the sidelink BSR to the network node in a single medium access control (MAC) protocol data unit (PDU).

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Yunxi Li