Method and apparatus for releasing PUSCH resources assigned for random access in wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorAnil Agiwal
Life of this patent
Estimating the term…
Abstract
A communication method and a system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as a smart home, a smart building, a smart city, a smart car, a connected car, health care, digital education, a smart retail, security and safety services. The disclosure provides method and an apparatus for releasing physical uplink shared channel (PUSCH) resources assigned for random access procedure.
Claims20
A method performed by a terminal in a wireless communication system, the method comprising:
- receiving, from a base station, a message for a master cell group (MCG) including information configuring a contention free random access resource for 2-step random access procedure, wherein the contention free random access resource for 2-step random access procedure comprises a dedicated random access preamble and a dedicated physical uplink shared channel (PUSCH) resource;
- transmitting, to the base station, a message A (MSGA) preamble for the 2-step random access procedure based on the information;
- identifying whether the 2-step random access procedure is completed;
- releasing the contention free random access resource comprising the dedicated random access preamble and the dedicated PUSCH resource based on whether the 2-step random access procedure is completed;
- and
- releasing the contention free random access resource comprising the dedicated random access preamble and the dedicated PUSCH resource, in case that a T304 timer of the MCG configured based on the message expires.
A method performed by a base station in a wireless communication system, the method comprising:
- transmitting, to a terminal, a message of a master cell group (MCG) including information configuring a contention free random access resource for 2-step random access procedure, wherein the contention free random access resource for 2-step random access procedure comprises a dedicated random access preamble and a dedicated physical uplink shared channel (PUSCH) resource;
- receiving, from the terminal, a message A (MSGA) preamble for the 2-step random access procedure based on the information;
- and
- transmitting, to the terminal, a message in response to the MSGA preamble,
- wherein, in case that a T304 timer of the MCG configured based on the message expires, the contention free random access resource comprising the dedicated random access preamble and the dedicated PUSCH resource is released.
A terminal in a wireless communication system, the terminal comprising:
- a transceiver configured to transmit or receive a signal;
- and
- a controller configured to:
- receive, from a base station, a message for a master cell group (MCG) including information configuring a contention free random access resource for 2-step random access procedure, wherein the contention free random access resource for 2-step random access procedure comprises a dedicated random access preamble and a dedicated physical uplink shared channel (PUSCH) resource,
- transmit, to the base station, a message A (MSGA) preamble for the 2-step random access procedure based on the information,
- identify whether the 2-step random access is completed, and
- release the contention free random access resource comprising the dedicated random access preamble and the dedicated PUSCH resource, in case that a T304 timer of the MCG configured based on the message expires.
A base station in a wireless communication system, the base station comprising:
- a transceiver configured to transmit or receive a signal;
- and
- a controller configured to:
- transmit, to a terminal, a message for a master cell group (MCG) including information configuring a contention free random access resource for 2-step random access procedure, wherein the contention free random access resource for 2-step random access procedure comprises a dedicated random access preamble and a dedicated physical uplink shared channel (PUSCH) resource,
- receive, from the terminal, a message A (MSGA) preamble for the 2-step random access procedure based on the information, and
- transmit, to the terminal, a message in response to the MSGA preamble,
- wherein, in case that a T304 timer of the MCG configured based on the message expires, the contention free random access resource comprising the dedicated random access preamble and the dedicated PUSCH resource.
Dependencies are inferred from the claim text.