Timing for non-overlapping sub-band full duplex (SBFD) operations in 5G NR

An apparatus of a User Equipment (UE) configured for operation in a fifth-generation new radio (5G NR) network, the apparatus comprising:

• processing circuitry;
• and
• memory,
• wherein for Sub-Band Full Duplex (SBFD) operation, the processing circuitry is to configure the UE to communicate with a generation Node B (gNB) during SBFD symbols, each of the SBFD symbols spanning an active DL bandwidth part (BWP) configured to the UE and comprising at least a downlink (DL) subband and an uplink (UL) subband within the active DL bandwidth part (BWP),
• wherein to communicate during the SBFD symbols, the processing circuitry is to configure the UE to transmit uplink transmissions within the uplink subband to the gNB,
• wherein the uplink transmissions during the SBFD symbols are transmitted with a timing-advance offset to adjust advancement in initiation of the uplink transmission relative to DL symbol timing at the UE within an SBFD symbol,
• wherein the processing circuitry is further configured to decode configuration information from the gNB to indicate:
• non-SBFD symbols, each of the non-SBFD symbols comprising either a downlink symbol or an uplink symbol that spans the active DL BWP,
• wherein the non-SBFD symbols that are downlink symbols are configured for reception of downlink transmissions without uplink transmissions, and
• wherein the non-SBFD symbols that are uplink symbols are configured for transmission of uplink transmissions without downlink receptions,
• wherein the processing circuitry is further configured to:
• decode timing-advance offset information received from the gNB, the timing-advance offset information comprising the timing-advance offset;
• and
• decode timing-advance information received from the gNB, the timing-advance information comprising a timing-advance (NTA),
• wherein to transmit uplink transmissions in one or more of the SBFD symbols, the processing circuitry is to configure the UE to use the timing-advance to initiate an uplink transmission before symbol boundaries of the SBFD symbols, the uplink transmissions being transmitted with a total timing-advance comprising the timing-advance plus the timing-advance offset,
• wherein the timing-advance offset information comprises:
• a first timing-advance offset for use by the UE for uplink transmissions in the one or more SBFD symbols;
• and
• a second timing-advance offset for use by the UE for uplink transmissions in one or more contiguous SBFD symbols that follow a downlink symbol, and
• wherein the memory is configured to store the timing-advance offset.

An apparatus of a User Equipment (UE) configured for operation in a fifth-generation new radio (5G NR) network, the apparatus comprising:

• processing circuitry;
• and
• memory,
• wherein for Sub-Band Full Duplex (SBFD) operation, the processing circuitry is to configure the UE to communicate with a generation Node B (gNB) during SBFD symbols, each of the SBFD symbols spanning an active DL bandwidth part (BWP) configured to the UE and comprising at least a downlink (DL) subband and an uplink (UL) subband within the active DL bandwidth part (BWP),
• wherein to communicate during the SBFD symbols, the processing circuitry is to configure the UE to transmit uplink transmissions within the uplink subband to the gNB,
• wherein the uplink transmissions during the SBFD symbols are transmitted with a timing-advance offset to adjust advancement in initiation of the uplink transmission relative to DL symbol timing at the UE within an SBFD symbol,
• wherein the processing circuitry is further configured to decode configuration information from the gNB to indicate:
• non-SBFD symbols, each of the non-SBFD symbols comprising either a downlink symbol or an uplink symbol that spans the active DL BWP,
• wherein the non-SBFD symbols that are downlink symbols are configured for reception of downlink transmissions without uplink transmissions, and
• wherein the non-SBFD symbols that are uplink symbols are configured for transmission of uplink transmissions without downlink receptions,
• wherein the processing circuitry is further configured to:
• decode timing-advance offset information received from the gNB, the timing-advance offset information comprising the timing-advance offset;
• and
• decode timing-advance information received from the gNB, the timing-advance information comprising a timing-advance (NTA),
• wherein to transmit uplink transmissions in one or more of the SBFD symbols, the processing circuitry is to configure the UE to use the timing-advance to initiate an uplink transmission before symbol boundaries of the SBFD symbols, the uplink transmissions being transmitted with a total timing-advance comprising the timing-advance plus the timing-advance offset,
• wherein the UE does not expect the gNB to schedule an uplink transmission in an SBFD symbol when:
• the uplink transmission would overlap with an expected downlink transmission in a prior non-SBFD symbol, or
• an insufficient gap exists between the uplink transmission in the SBFD symbol and the expected downlink transmission in the prior non-SBFD symbol,
• wherein when an uplink transmission in an SBFD symbol is configured to overlap with an expected downlink transmission in a prior non-SBFD symbol, or when an insufficient gap is exists between the uplink transmission in the SBFD symbol and the expected downlink transmission in the prior non-SBFD symbol, the processing circuitry is configured to reduce a duration of one of the uplink transmission in the SBFD symbol or an expected downlink reception in the prior non-SBFD symbol, and
• wherein to reduce the duration, the processing circuitry is to configure the UE to perform one or more of:
• transmit-side puncturing, rate-matching, cancellation, postponement to a next transmission opportunity, or splitting a nominal repetition into two actual repetitions, and
• wherein the memory is configured to store the timing-advance offset.

An apparatus of a generation Node B (gNB) configured for operation in a fifth-generation new radio (5G NR) network, the apparatus comprising:

• processing circuitry;
• and memory, wherein for Sub-Band Full Duplex (SBFD) communications, the processing circuitry is to configure the gNB to communicate with two or more User Equipment (UEs) during SBFD symbols, wherein during any one or more of the SBFD symbols, a downlink transmission is transmitted to at least one of the UEs simultaneously with reception of an uplink transmission from at least another of the UEs, each of the SBFD symbols spanning a carrier bandwidth and comprising at least a downlink (DL) subband and an uplink (UL) subband within the carrier bandwidth,
• wherein to communicate with the two or more UEs simultaneously during the SBFD symbols, the processing circuitry is to:
• configure the UEs that are to transmit during one or more of the SBFD symbols with timing-advance offset information, the timing-advance offset information for use by the UEs that are to transmit during one or more of the SBFD symbols to adjust a timing-advance for initiating an uplink transmission relative to downlink symbol timing within the one or more SBFD symbols, and
• wherein the processing circuitry is further to configure the gNB to communicate with the UEs during non-SBFD symbols, each of the non-SBFD symbols comprising either a downlink symbol or an uplink symbol that spans the carrier bandwidth,
• wherein during the non-SBFD symbols that are downlink symbols, the processing circuitry is to configure the gNB to transmit downlink transmissions to one or more of the UEs without reception of uplink transmissions, and
• wherein during the non-SBFD symbols that are uplink symbols, the processing circuitry is to configure the gNB to receive uplink transmissions from one or more of the UEs without downlink transmissions,
• wherein the processing circuitry is further configured to:
• encode the timing-advance offset information for transmission to each of the UEs, the timing-advance offset information comprising a timing-advance offset;
• and
• encode timing-advance information for transmission to each of the UEs, the timing-advance information comprising a timing-advance (NTA),
• wherein for a UE that is to transmit uplink transmissions in one or more of the SBFD symbols, the timing-advance is for use by the UEs to initiate an uplink transmission before symbol boundaries of the SBFD symbols, the uplink transmissions being transmitted with a total timing-advance comprising the timing-advance plus the timing-advance offset,
• wherein for a UE that is to transmit uplink transmissions in one or more of the non-SBFD symbols that are uplink symbols, the timing-advance is for use by the UE to initiate an uplink transmission before symbol boundaries of the non-SBFD symbols,
• wherein the memory is configured to store the timing-advance offset information.