Physical downlink shared channel transmission for multi-point
Described is an apparatus of a User Equipment (UE) operable to communicate with a fifth generation Evolved Node-B (gNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to determine a first parameter set and a second parameter set for establishing Physical Downlink Shared Channel (PDSCH) resources. The second circuitry may be operable to process a first part of a PDSCH transmission from a first set of Multiple Input Multiple Output (MIMO) layers corresponding with a first Multimedia Broadcast Single Frequency Network (MBSFN) configuration based on the first parameter set. The second circuitry may also be operable to process a second part of the PDSCH transmission from a second set of MIMO layers corresponding with a second MBSFN configuration based on the second parameter set.
1. A User Equipment (UE) operable to communicate with a first transmission point (TP) and a second TP on a wireless network, comprising:
one or more processors configured to:
determine a first parameter set associated with the first TP and a second parameter set associated with the second TP for establishing Physical Downlink Shared Channel (PDSCH) resources;
process a first part of a PDSCH transmission from a first set of Multiple Input Multiple Output (MIMO) layers corresponding with a first Multimedia Broadcast Single Frequency Network (MBSFN) configuration based on the first parameter set associated with the first TP; and
process a second part of the PDSCH transmission from a second set of MIMO layers corresponding with a second MBSFN configuration based on the second parameter set associated with the second TP, wherein the PDSCH transmission includes the first part received from the first TP and the second part received from the second TP, and wherein the second MBSFN configuration is different from the first MBSFN configuration; and
an interface for receiving the PDSCH transmission from a receiving circuitry.
2. The UE of claim 1 , wherein the one or more processors are further configured to:
process a configuration transmission carrying at least one of the first parameter set and the second parameter set.
3. The UE of claim 1 ,
wherein a scheduled Downlink (DL) subframe is an MBSFN subframe for the first parameter set and a non-MBSFN subframe for the second parameter set.
4. The UE of claim 1 ,
wherein a starting PDSCH Orthogonal Frequency Division Multiplexing (OFDM) symbol index of the PDSCH transmission is a minimum of: two; or a starting PDSCH symbol index of the first parameter set.
5. The UE of claim 1 ,
wherein a starting PDSCH Orthogonal Frequency Division Multiplexing (OFDM) symbol index of the PDSCH transmission, a starting PDSCH symbol index of the first parameter set, and a starting PDSCH symbol index of the second parameter set are a same value.
6. The UE of claim 1 , wherein the first parameter set associated with the first TP includes a PDSCH-RE-MappingQCL set.
7. The UE of claim 1 , wherein a downlink subframe of the PDSCH transmission comprises a MBSFN subframe for the first parameter set associated with the first TP and a non-MBSFN subframe for the second parameter set associated with the second TP.
8. The UE of claim 7 , wherein:
when the downlink subframe corresponds to the MBSFN subframe for the first parameter set associated with the first TP, a PDSCH starting symbol is determined according to an MBSFN subframe rule; and
when the downlink subframe does not correspond to the MBSFN subframe for the first parameter set associated with the first TP, the PDSCH starting symbol is determined according to a non-MBSFN subframe rule.
9. The UE of claim 1 , wherein a first Resource Allocation (RA) for the first set of MIMO layers corresponding to the first TP is different from a second RA for the second set of MIMO layers corresponding to the second TP to support frequency selective Dynamic Point Selection (DPS).
10. Non-transitory machine readable storage media having machine executable instructions stored thereon that, when executed, cause one or more processors of a User Equipment (UE) operable to communicate with a first transmission point (TP) and a second TP on a wireless network to perform operations comprising:
determining a first parameter set associated with the first TP and a second parameter set associated with the second TP for establishing Physical Downlink Shared Channel (PDSCH) resources;
processing a first part of a PDSCH transmission from a first set of Multiple Input Multiple Output (MIMO) layers corresponding with a first Multimedia Broadcast Single Frequency Network (MBSFN) configuration based on the first parameter set associated with the first TP; and
processing a second part of the PDSCH transmission from a second set of MIMO layers corresponding with a second MBSFN configuration based on the second parameter set associated with the second TP, wherein the PDSCH transmission includes the first part received from the first TP and the second part received from the second TP, and wherein the second MBSFN configuration is different from the first MBSFN configuration.
11. The non-transitory machine readable storage media of claim 10 , wherein the operations further comprise:
processing a configuration transmission carrying at least one of the first parameter set and the second parameter set.
12. The non-transitory machine readable storage media of any claim 10 ,
wherein a scheduled Downlink (DL) subframe is an MBSFN subframe for the first parameter set and a non-MBSFN subframe for the second parameter set.
13. The non-transitory machine readable storage media of any claim 10 ,
wherein a starting PDSCH Orthogonal Frequency Division Multiplexing (OFDM) symbol index of the PDSCH transmission is the minimum of: two; or a starting PDSCH symbol index of the first parameter set.
14. The non-transitory machine readable storage media of any claim 10 ,
wherein a starting PDSCH Orthogonal Frequency Division Multiplexing (OFDM) symbol index of the PDSCH transmission, a starting PDSCH symbol index of the first parameter set, and a starting PDSCH symbol index of the second parameter set are the same value.
15. The non-transitory machine readable storage media of claim 10 , wherein the first parameter set associated with the first TP includes a PDSCH-RE-MappingQCL set.
16. The non-transitory machine readable storage media of claim 10 , wherein a downlink subframe of the PDSCH transmission comprises an MBSFN subframe for the first parameter set associated with the first TP and a non-MBSFN subframe for the second parameter set associated with the second TP.
17. The non-transitory machine readable storage media of claim 16 , wherein when the downlink subframe corresponds to the MBSFN subframe for the first parameter set associated with the first TP, a PDSCH starting symbol is determined according to an MBSFN subframe rule; and
when the downlink subframe does not correspond to the MBSFN subframe for the first parameter set associated with the first TP, the PDSCH starting symbol is determined according to a non-MBSFN subframe rule.
18. The non-transitory machine readable storage media of claim 10 , wherein a first Resource Allocation (RA) for the first set of MIMO layers corresponding to the first TP is different from a second RA for the second set of MIMO layers corresponding to the second TP to support frequency selective Dynamic Point Selection (DPS).