Methods to transmit multiple transport blocks for unlicensed wideband radio systems
A method by a wireless ( 110 ) device includes receiving, from a network node ( 160 ), one or more bandwidth pieces. The data scheduled in one of the one or more bandwidth pieces includes at least one complete transport block and control information corresponding to the at least one complete transport block. The method further includes transmitting the data based on the scheduling or control information.
1. A method in a wireless device, the method comprising:
receiving, from a network node, an uplink grant scheduling one or more transport blocks in one or more bandwidth pieces, wherein each bandwidth piece corresponds to at least one listen-before-talk, LBT, bandwidth unit;
determining at least one search space based on a frequency offset for moving a CORESET associated with a first bandwidth piece to a new location;
monitoring the at least one search space for each of the one or more bandwidth pieces; and
transmitting data in the one or more bandwidth pieces based on the received uplink grant, wherein the data comprises the one or more transport blocks and uplink control information corresponding to the one or more transport blocks.
2. The method of claim 1 , wherein the one or more transport blocks are allocated per LBT bandwidth unit.
3. The method of claim 1 , wherein the uplink grant comprises a set of hybrid automatic repeat request, HARQ, identifiers.
4. The method of claim 1 , wherein the uplink grant comprises a first HARQ identifier and the method further comprises:
deriving at least one additional HARQ identifier based on the first HARQ identifier.
5. The method of claim 1 , wherein the uplink grant schedules one transport block per bandwidth piece and comprises an identification of the bandwidth piece in which a particular transport block should be transmitted.
6. The method of claim 5 , further comprising determining that the bandwidth piece in which the one or more transport blocks is scheduled corresponds to the bandwidth piece in which the uplink grant was received.
7. The method of claim 1 , further comprising receiving a listen-before-talk, LBT, bandwidth piece bitmap from the network node, wherein each bit in the LBT bandwidth piece bitmap corresponds to one of the one or more bandwidth pieces, and wherein monitoring the at least one search space comprises performing physical downlink control channel (PDCCH) monitoring in the one of more bandwidth pieces based on the LBT bandwidth piece bitmap.
8. The method of claim 1 , wherein the uplink control information is repeated in each one of the one or more bandwidth pieces.
9. The method of claim 1 , further comprising receiving at least one of a location and a bandwidth of a bandwidth piece from the network node via layer 1 or higher layer signaling.
10. A non-transitory computer readable medium storing instructions which when executed by a computer perform any of the methods of claim 1 .
11. A wireless device comprising:
memory operable to store instructions; and
processing circuitry operable to execute the instructions to cause the wireless device to:
receive, from a network node, an uplink grant scheduling one or more transport blocks in one or more bandwidth piece, wherein each bandwidth piece corresponds to at least one listen-before-talk, LBT, bandwidth unit;
determine at least one search space based on a frequency offset for moving a CORESET associated with a first bandwidth piece to a new location;
monitor the at least one search space for each of the one or more bandwidth pieces; and
transmit data in the one or more bandwidth pieces based on the received uplink grant, wherein the data comprises the one or more transport blocks and uplink control information corresponding to the one or more transport blocks.
12. The wireless device of claim 11 , wherein the one or more transport blocks are allocated per LBT bandwidth unit.
13. A method in a network nod, the method comprising:
transmitting, to a wireless device, an uplink grant scheduling one or more transport blocks in one or more bandwidth pieces, wherein each bandwidth piece corresponds to at least one listen-before-talk, LBT, bandwidth unit;
configuring the wireless device to monitor the at least one search space for each of the one or more bandwidth pieces, wherein the at least one search space is determined based on a frequency offset for moving a CORESET associated with a first bandwidth piece to a new location; and
receiving, from the wireless device, the data transmitted in the one or more bandwidth pieces based on the uplink grant, wherein the data comprises the one or more transport blocks and uplink control information corresponding to the one or more transport blocks.
14. The method of claim 13 , wherein the one or more transport blocks are allocated per LBT bandwidth unit.
15. The method of claim 13 , wherein the uplink grant comprises a set of hybrid automat repeat request, HARQ, identifiers.
16. The method of claim 15 , wherein the uplink grant comprises a first HARQ identifier from which at least one additional HARQ identifier can be derived.
17. The method of claim 13 , wherein the uplink grant schedules one transport block per bandwidth piece and comprises an identification of the bandwidth piece in which a particular transport block should be transmitted.
18. The method of claim 17 , wherein the bandwidth piece in which the one or more transport blocks is scheduled corresponds to the bandwidth piece in which the uplink grant is.
19. The method of claim 18 , further comprising transmitting, to the wireless device, a listen-before-talk, LBT, bandwidth piece bitmap, wherein each bit in the LBT bandwidth piece bitmap corresponds to one of the one or more bandwidth pieces, and wherein configuring the wireless device to monitor the at least one search space comprises configuring the wireless device to perform physical downlink control channel (PDCCH) monitoring in the one of more bandwidth pieces based on the LBT bandwidth piece bitmap.
20. The method of claim 19 , further comprising configuring the wireless device to repeat the uplink control information in each one of the one or more bandwidth pieces.
21. The method of claim 13 , further comprising receiving, from the wireless device, control information on the one or more bandwidth pieces.
22. The method of claim 13 , further comprising transmitting at least one of a location and a bandwidth of a bandwidth piece to the wireless device via layer 1 or higher layer signaling.
23. A non-transitory computer readable medium storing instructions which when executed by a computer perform any of the methods of claim 13 .
24. A network node comprising:
memory operable to store instructions; and
processing circuitry operable to execute the instructions to cause the network node to:
transmit, to a wireless device, an uplink grant scheduling one or more transport blocks in one or more bandwidth pieces, wherein each bandwidth piece corresponds to at least one listen-before talk, LBT bandwidth unit;
configure the wireless device to monitor the at least one search space for each of the one or more bandwidth pieces, wherein the at least one search space is determined based on a frequency offset for moving a CORESET associated with a first bandwidth piece to a new location; and
receive, from the wireless device, the data transmitted in the one or more bandwidth pieces based on the uplink grant, wherein the data comprises the one or more transport blocks and uplink control information corresponding to the one or more transport blocks.
25. The network node of claim 24 , wherein the one or more transport blocks are allocated per LBT bandwidth unit.
26. The wireless device of claim 1 , wherein the data transmitted in the one or more bandwidth pieces corresponding to the one or more transport blocks comprises at least one complete transport block without transport block splitting.