Flexible grant-free resource configuration signaling
AssigneeHuawei Technologies Co., Ltd.
InventorsYu Cao, Liqing Zhang, Jianglei Ma
Life of this patent
Estimating the term…
Abstract
An embodiment method for grant-free resource configuration comprises configuring a first type of grant-free resource, wherein the first type of grant-free resource is cell-specific and is configured using broadcast signaling, and wherein the first type of grant-free resource is accessible to a UE without further configuration; and configuring a second type of grant-free resource, wherein the second type of grant-free resource is UE-specific and is configured using a combination of broadcast signaling and unicast/multicast signaling, and wherein the second type of grant-free resource is accessible to a UE only after the unicast/multicast configuration.
Claims23
A method for grant-free (GF) transmissions, the method comprising:
- receiving, by a user equipment (UE), a Radio Resource Control (RRC) signal specifying at least a UE-specific GF radio network temporary identifier (GF-RNTI), wherein the UE-specific GF-RNTI is different from a cell-RNTI (C-RNTI) for a grant-based initial transmission or retransmission of the grant-based initial transmission;
- performing, by the UE, a GF uplink (UL) transmission in a transmission resource without receiving a downlink control information (DCI) signal for allocation of the transmission resource;
- receiving, by the UE, a UL grant;
- and
- Performing, by the UE, a grant-based UL retransmission of the GF UL transmission using the UL grant and the UE-specific GF-RNTI.
A user equipment (UE) for grant-free (GF) transmissions, the UE comprising:
- a non-transitory memory;
- and
- a hardware processor configured to:
- receive a Radio Resource Control (RRC) signal specifying at least a UE-specific GF radio network temporary identifier (GF-RNTI), wherein the UE-specific GF-RNTI is different from a cell-RNTI (C-RNTI) for a grant-based initial transmission or retransmission of the grant-based initial transmission;
- perform a GF uplink (UL) transmission in a transmission resource without receiving a downlink control information (DCI) signal for allocation of the transmission resource;
- receive a UL grant;
- and
- perform a grant-based UL retransmission of the GF UL transmission using the UL grant and the UE-specific GF-RNTI.
A method for grant-free (GF) transmissions, the method comprising:
- transmitting, by a base station to a user equipment (UE), a Radio Resource Control (RRC) signal specifying at least a UE-specific GF radio network temporary identifier (GF-RNTI), wherein the UE-specific GF-RNTI is different from a cell-RNTI (C-RNTI) for a grant-based initial transmission or retransmission of the grant-based initial transmission;
- receiving, by the base station, a GF uplink (UL) transmission in a transmission resource without transmitting a downlink control information (DCI) signal to the UE for allocating the transmission resource;
- transmitting, by the base station, a UL grant;
- and
- receiving, by the base station, a grant-based UL retransmission of the GF UL transmission using the UL grant and the UE-specific GF-RNTI.
An apparatus for grant-free (GF) transmissions, the apparatus comprising:
- a non-transitory memory;
- and
- a hardware processor configured to:
- transmit, to a user equipment (UE), a Radio Resource Control (RRC) signal specifying at least a UE-specific GF radio network temporary identifier (GF-RNTI), wherein the UE-specific GF-RNTI is different from a cell-RNTI (C-RNTI) for a grant-based initial transmission or retransmission of the grant-based initial transmission;
- receive a GF uplink (UL) transmission in a transmission resource without transmitting a downlink control information (DCI) signal to the UE for allocating the transmission resource;
- transmit a UL grant;
- and
- receive a grant-based UL retransmission of the GF UL transmission using the UL grant and the UE-specific GF-RNTI.
Dependencies are inferred from the claim text.