Systems and methods for multi-PxSCH signaling at high frequencies
This disclosure relates to techniques for performing wireless communications including signaling resource allocation for multiple transport blocks (TBs) on either PUSCH or PDSCH using a single control element, such as a DCI. In various scenarios, the multiple TBs may be scheduled either at contiguous or at non-contiguous dime-domain resources. Various mechanisms are disclosed for performing signaling the resource allocation for the multiple TBs without introducing excessive signaling overhead.
1. An apparatus comprising:
at least one memory element; and
processing circuitry coupled to the at least one memory element, the processing circuitry configured to:
transmit a control message indicating downlink transmission resources allocated for a plurality of payload data messages, wherein the control message includes an indication of respective time-domain resources allocated to each of the payload data messages, wherein the indication includes:
an index to a table of resource assignments, wherein the index indicates a first entry of the table, the first entry identifying the respective time-domain resources allocated to at least a first of the payload data messages; and
at least one offset value that identifies a second entry of the table by identifying the position of the second entry relative to the first entry, the second entry identifying the respective time-domain resources allocated to at least a second of the payload data messages, wherein the at least one offset value is distinct from the index; and
transmit the plurality of payload data messages according to the allocated downlink transmission resources.
2. The apparatus of claim 1 , wherein the plurality of payload data messages is transmitted on a physical downlink shared channel (PDSCH).
3. The apparatus of claim 1 , wherein the control message is a downlink control indicator (DCI).
4. The apparatus of claim 1 , wherein the allocated downlink transmission resources include transmission resources that are non-contiguous in time.
5. The apparatus of claim 1 , wherein the processing circuitry is further configured to:
generate the control message, wherein the generating includes configuring the control message to include allocation of the downlink transmission resources for the plurality of payload data messages in response to determining that at least one payload data message of the plurality of payload data messages will be transmitted within a particular frequency range.
6. The apparatus of claim 1 , wherein the indication of respective time-domain resources identifies a respective start time and duration for each of the payload data messages.
7. The apparatus of claim 1 , wherein each indicated entry of the table includes at least one value indicating a slot in which transmission of a respective payload data message is scheduled to begin, by specifying a delay between the slot in which the control message is transmitted and the slot in which transmission of the respective payload data message is scheduled to begin.
8. The apparatus of claim 1 ,
wherein the first entry of the table includes at least one value indicating a slot in which transmission of a respective first payload data message is scheduled to begin, by specifying a first delay between the slot in which the control message is transmitted and the slot in which transmission of the respective first payload data message is scheduled to begin, wherein the delay is greater than zero, and
wherein the second entry of the table includes at least one value indicating a slot in which transmission of a respective second payload data message is scheduled to begin, by specifying a second delay between the slot in which the latest of the respective first payload data messages is scheduled to begin and the slot in which each respective second payload data message is scheduled to begin.
9. The apparatus of claim 1 , wherein, for each of the payload data messages, the control message further indicates a resource allocation for transmitting an acknowledgement (ACK) feedback message responsive to the respective payload data message.
10. The apparatus of claim 1 , wherein the control message includes an indication of a frequency hopping configuration for each transport time interval (TTI).
11. The apparatus of claim 1 , wherein the processing circuitry is further configured to:
transmit a second control message indicating uplink transmission resources allocated for a second plurality of payload data messages; and
receive the second plurality of payload data messages according to the allocated uplink transmission resources.
12. The apparatus of claim 11 , wherein the second plurality of payload data messages is received on a physical uplink shared channel (PUSCH).
13. A base station for communicating in a wireless communication network, the base station comprising:
transceiver circuitry configured to transmit and receive wireless communication signals; and
processing circuitry coupled to the transceiver circuitry, the processing circuitry configured to cause the base station to:
transmit a control message indicating downlink transmission resources allocated for a plurality of payload data messages, wherein the control message includes an indication of respective time-domain resources allocated to each of the payload data messages, wherein the indication includes:
an index to a table of resource assignments, wherein the index indicates a first entry of the table, the first entry identifying the respective time-domain resources allocated to at least a first of the payload data messages; and
at least one offset value that identifies a second entry of the table by identifying the position of the second entry relative to the first entry, the second entry identifying the respective time-domain resources allocated to at least a second of the payload data messages, wherein the at least one offset value is distinct from the index; and
transmit the plurality of payload data messages according to the allocated downlink transmission resources.
14. A non-transitory computer-readable memory medium storing software instructions that, when executed by a processor of a base station in a wireless communication network, cause the processor to:
provide for transmission a control message indicating downlink transmission resources allocated for a plurality of payload data messages, wherein the control message includes an indication of respective time-domain resources allocated to each of the payload data messages, wherein the indication includes:
an index to a table of resource assignments, wherein the index indicates a first entry of the table, the first entry identifying the respective time-domain resources allocated to at least a first of the payload data messages; and
at least one offset value that identifies a second entry of the table by identifying the position of the second entry relative to the first entry, the second entry identifying the respective time-domain resources allocated to at least a second of the payload data messages, wherein the at least one offset value is distinct from the index; and
provide for transmission the plurality of payload data messages according to the allocated downlink transmission resources.
15. The non-transitory computer-readable memory medium of claim 14 , wherein the indication of respective time-domain resources identifies a respective start time and duration for each of the payload data messages.
16. The non-transitory computer-readable memory medium of claim 14 , wherein the software instructions, when executed, further cause the base station to:
transmit a second control message indicating uplink transmission resources allocated for a second plurality of payload data messages; and
receive the second plurality of payload data messages according to the allocated uplink transmission resources.