Downlink data transmission in RRC inactive mode
AssigneeQUALCOMM Incorporated
InventorsOzcan Ozturk, Gavin Bernard Horn
Life of this patent
Estimating the term…
Abstract
An apparatus receives a small data transmission during an RRC inactive mode, without transitioning the UE to an RRC connected mode. The UE receives a page from a base station for a downlink data transmission while in the RRC inactive mode. The page may indicate a downlink data transmission to occur without transitioning the UE to an RRC connected mode and may indicate a RACH preamble to the UE. The UE transmits a random access preamble to the base station in response to the page and receives a downlink data packet from the base station while remaining in the RRC inactive mode.
Claims64
A method of wireless communication at a User Equipment (UE), comprising:
- entering a Radio Resource Control (RRC) inactive mode;
- receiving a page from a base station for a downlink data transmission while in the RRC inactive mode;
- transmitting a random access preamble to the base station in response to the page;
- and
- receiving a downlink user data packet, of the downlink data transmission indicated in the page, from the base station in response to the random access preamble from the UE or a random access response message while remaining in the RRC inactive mode and without transitioning to an RRC connected mode.
An apparatus for wireless communication at a User Equipment (UE), comprising:
- means for entering a Radio Resource Control (RRC) inactive mode;
- means for receiving a page from a base station for a downlink data transmission while in the RRC inactive mode;
- means for transmitting a random access preamble to the base station in response to the page;
- and
- means for receiving a downlink user data packet, of the downlink data transmission indicated in the page, from the base station in response to the random access preamble from the UE or a random access response message while remaining in the RRC inactive mode and without transitioning to an RRC connected mode.
An apparatus for wireless communication at a User Equipment (UE), comprising:
- memory;
- and
- at least one processor coupled to the memory and configured to cause the UE to:
- enter a Radio Resource Control (RRC) inactive mode;
- receive a page from a base station for a downlink data transmission while in the RRC inactive mode;
- transmit a random access preamble to the base station in response to the page;
- and
- receive a downlink user data packet, of the downlink data transmission indicated in the page, from the base station in response to the random access preamble from the UE or a random access response message while remaining in the RRC inactive mode and without transitioning to an RRC connected mode.
A non-transitory computer-readable medium storing computer executable code for wireless communication at a User Equipment (UE), the code when executed by at least one processor causes the UE to:
- enter a Radio Resource Control (RRC) inactive mode;
- receive a page from a base station for a downlink data transmission while in the RRC inactive mode;
- transmit a random access preamble to the base station in response to the page;
- and
- receive a downlink user data packet, of the downlink data transmission indicated in the page, from the base station in response to the random access preamble from the UE or a random access response while remaining in the RRC inactive mode and without transitioning to an RRC connected mode.
A method of wireless communication at a base station, comprising:
- transmitting a page to a User Equipment (UE) in a Radio Resource Control (RRC) inactive mode for a downlink data transmission;
- receiving a random access preamble from the UE in response to the page;
- and
- transmitting a downlink user data packet, of the downlink data transmission indicated in the page, to the UE in response to the random access preamble from the UE or a random access response message while the UE remains in the RRC inactive mode and without transitioning the UE to an RRC connected mode.
An apparatus for wireless communication at a base station, comprising:
- means for transmitting a page to a User Equipment (UE) in a Radio Resource Control (RRC) inactive mode for a downlink data transmission;
- means for receiving a random access preamble from the UE in response to the page;
- and
- means for transmitting a downlink user data packet, of the downlink data transmission indicated in the page, to the UE in response to the random access preamble from the UE or a random access response message while the UE remains in the RRC inactive mode and without transitioning the UE to an RRC connected mode.
An apparatus for wireless communication at a base station, comprising:
- memory;
- and
- at least one processor coupled to the memory and configured to cause the base station to:
- transmit a page to a User Equipment (UE) in a Radio Resource Control (RRC) inactive mode for a downlink data transmission;
- receive a random access preamble from the UE in response to the page;
- and
- transmit a downlink user data packet, of the downlink data transmission indicated in the page, to the UE in response to the random access preamble from the UE or a random access response message while the UE remains in the RRC inactive mode and without transitioning the UE to an RRC connected mode.
A non-transitory computer-readable medium storing computer executable code for wireless communication at a base station, the code when executed by at least one processor causes the base station to:
- transmit a page to a User Equipment (UE) in a Radio Resource Control (RRC) inactive mode for a downlink data transmission;
- receive a random access preamble from the UE in response to the page;
- and
- transmit a downlink user data packet, of the downlink data transmission indicated in the page, to the UE in response to the random access preamble from the UE or a random access response message while the UE remains in the RRC inactive mode and without transitioning the UE to an RRC connected mode.
Dependencies are inferred from the claim text.