Wireless device, radio network node and methods performed therein for handling communication between wireless devices in a wireless communication network
Embodiments herein relate e.g. to a method performed by a radio network node ( 12 ) for handling communication between wireless devices over a sidelink in a wireless communication network. The radio network node receives from a wireless device ( 10 ) of the wireless devices, an indication in a buffer status report, wherein the indication indicates one or more QoS requirements or characteristics of a packet in a buffer associated to the buffer status report, wherein the one or more QoS requirements or characteristics comprise at least one of: reliability, latency, and data rate; and wherein the indication is associated with a logical channel. The radio network node handles the communication of the wireless device taking the received indication into account.
1. A method performed by a radio network node of a wireless communication network, the method comprising:
receiving a Buffer Status Report (BSR) from a wireless device, wherein the wireless device identifies in the BSR one or more Logical Channel Groups (LCGs) to indicate Pro Se Per Packet Priorities (PPPPs) applicable to transmission by the wireless device of one or more packets on a sidelink between the wireless device and another wireless device, and identifies one or more other LCGs in the BSR to indicate Quality-of-Service (QoS) requirements applicable to the transmission by the wireless device of the one or more packets on the sidelink; and
making a scheduling decision for scheduling the transmission by the wireless device of the one or more packets on the sidelink, according to the indicated QoS requirements in the BSR.
2. The method according to claim 1 , further comprising providing a configuration indication to the wireless device, wherein the configuration indication defines the one or more LCGs used for indicating the PPPPs and the one or more other LCGs for indicating the QoS requirements.
3. The method according to claim 1 , wherein making a scheduling decision for scheduling the transmission by the wireless device of the one or more packets on the sidelink comprises at least one of:
activating sidelink packet duplication, responsive to the indicated QoS requirements indicating that one or more of the one or more packets require high reliability delivery; and
activating one or more carriers, responsive to the indicated QoS requirements indicating that one or more of the one or more packets are associated with a high data rate.
4. A method performed by a wireless device with respect to a wireless communication network, the method comprising:
generating a Buffer Status Report (BSR), wherein the wireless device identifies in the BSR one or more Logical Channel Groups (LCGs) to indicate Pro Se Per Packet Priorities (PPPPs) applicable to transmission by the wireless device of one or more packets on a sidelink between the wireless device and another wireless device, and identifies one or more other LCGs in the BSR to indicate Quality-of-Service (QoS) requirements applicable to the transmission by the wireless device of the one or more packets on the sidelink; and
transmitting the BSR for a radio network node of the wireless communication network, to enable the radio network node to make a scheduling decision for scheduling the transmission by the wireless device of the one or more packets on the sidelink, in dependence on the indicated QoS requirements.
5. The method according to claim 4 , further comprising triggering transmission of the buffer status report.
6. The method according to claim 5 , wherein the triggering of the transmission is periodic, or responsive to data becoming available for transmission on the sidelink that is of a higher priority than any other data already available for transmission on the sidelink.
7. The method according to claim 4 , further comprising receiving a configuration indication, wherein the configuration indication indicates the one or more LCGs to indicate the PPPPs applicable to the transmission by the wireless device of the one or more packets on the sidelink, and indicates the one or more other LCGs to indicate the QoS requirements applicable to the transmission by the wireless device of the one or more packets on the sidelink.
8. A radio network node configured for operation in a wireless communication network, wherein the radio network node comprises:
processing circuitry; and
a memory with a computer program stored thereon comprising instructions that, when executed on the processing circuitry, cause the radio network node to:
receive a Buffer Status Report (BSR) from a wireless device, wherein the wireless device identifies in the BSR one or more Logical Channel Groups (LCGs) to indicate Pro Se Per Packet Priorities (PPPPs) applicable to transmission by the wireless device of one or more packets on a sidelink between the wireless device and another wireless device, and identifies one or more other LCGs in the BSR to indicate Quality-of-Service (QoS) requirements applicable to the transmission by the wireless device of the one or more packets on the sidelink; and
make a scheduling decision for scheduling the transmission by the wireless device of the one or more packets on the sidelink, according to the indicated QoS requirements in the BSR.
9. The radio network node according to claim 8 , wherein the memory comprises instructions that cause the radio network node to provide a configuration indication to the wireless device, wherein the configuration indication defines the one or more LCGs used for indicating the PPPPs and the one or more other LCGs for indicating the QoS requirements.
10. The radio network node according to claim 8 , wherein the memory comprises instructions that cause the radio network node to make the scheduling decision as:
activating sidelink packet duplication, responsive to the indicated QoS requirements indicating that one or more of the one or more packets require high reliability delivery; or
activating one or more carriers, responsive to the indicated QoS requirements indicating that one or more of one or more packets are associated with a high data rate.
11. A wireless device configured for operation with respect to a wireless communication network, wherein the wireless device comprises:
processing circuitry; and
a memory with a computer program stored thereon comprising instructions that, when executed on the processing circuitry, cause the wireless device to:
generate a Buffer Status Report (BSR), wherein the wireless device identifies in the BSR one or more Logical Channel Groups (LCGs) to indicate Pro Se Per Packet Priorities (PPPPs) applicable to transmission by the wireless device of one or more packets on a sidelink between the wireless device and another wireless device, and identifies one or more other LCGs in the BSR to indicate Quality-of-Service (QoS) requirements applicable to the transmission by the wireless device of the one or more packets on the sidelink; and
transmit the BSR for a radio network node of the wireless communication network, to enable the radio network node to make a scheduling decision for scheduling the transmission by the wireless device of the one or more packets on the sidelink, in dependence on the indicated QoS requirements.
12. The wireless device according to claim 11 , wherein the memory comprises instructions that cause the wireless device to trigger a transmission of the buffer status report.
13. The wireless device according to claim 12 , wherein the transmission is periodically triggered, or the transmission is triggered responsive to data becoming available for transmission on the sidelink that is of a higher priority than any other data already available for transmission on the sidelink.
14. The wireless device according to claim 11 , wherein the wireless device is further configured to receive a configuration indication, wherein the configuration indication indicates the one or more LCGs to indicate the PPPPs applicable to the transmission by the wireless device of the one or more packets on the sidelink, and indicates the one or more other LCGs to indicate the QoS requirements applicable to the transmission by the wireless device of the one or more packets on the sidelink.