Random access method and apparatus, and storage medium

A random access method, comprising:

• receiving, by a network device, a message 3 on a random access resource, wherein the message 3 comprises a user identity;
• and
• sending, by the network device, a message 4,
• wherein the user identity is an international mobile subscriber identity (IMSI), the message 4 is included in a physical downlink shared channel (PDSCH) scheduled by a first physical downlink control channel (PDCCH), and the first PDCCH is scrambled by a temporarily allocated C-RNTI;
• wherein the user identity is a preconfigured cell radio network temporary identity (C-RNTI), the message 4 is included in a PDSCH scheduled by a second PDCCH;
• wherein in response to determining that a target cell to be accessed is an original serving cell, the second PDCCH is scrambled by the preconfigured C-RNTI;
• and
• wherein in response to determining that the target cell to be accessed is not the original serving cell, the second PDCCH is scrambled by the temporarily allocated C-RNTI.

A random access apparatus applied to a terminal, comprising:

• a processor;
• and
• a memory for storing instructions executable by the processor,
• wherein the processor is configured to execute the instructions to perform acts comprising:
• transmitting a message 3 on a random access resource, wherein the terminal is in a grant-free scheduling state, the terminal in the grant-free scheduling state is in a non-connected state, and in response to determining that the terminal has data to be transmitted, the data is transmitted by the terminal on a resource preconfigured by a network device for the terminal at a designated transmission occasion;
• and
• reporting a user identity in the message 3, wherein the user identity comprises an international mobile subscriber identity (IMSI) or a preconfigured cell radio network temporary identity (C-RNTI).