Wireless communication method and apparatus for uplink transmission without scheduling

A wireless communication method by a base station or a chip in the base station, the method comprising:

• sending first higher layer signaling to a terminal, wherein the first higher layer signaling configures a first time resource and a first frequency resource, and the first time resource and the first frequency resource are configured to be used for uplink transmission without scheduling;
• and
• sending downlink control information to the terminal, wherein the downlink control information indicate a format of a slot, and the format indicates a transmission direction of a symbol in the slot,
• wherein an uplink symbol in the slot is a time resource that is configured to be used for the uplink transmission without scheduling.

An apparatus, comprising:

• at least one processor;
• and
• a memory storing instructions, wherein the instructions are executed by the at least one processor to cause the apparatus perform operations of:
• receiving first higher layer signaling from a base station, wherein the first higher layer signaling configures a first time resource and a first frequency resource, and the first time resource and the first frequency resource are configured to be used for uplink transmission without scheduling;
• and
• receiving downlink control information, wherein the downlink control information indicates a format of a slot, and the format indicates a transmission direction of a symbol in the slot,
• wherein an uplink symbol in the slot is a time resource that is configured to be used for the uplink transmission without scheduling.

An apparatus, comprising:

• at least one processor;
• and
• a memory storing instructions, wherein the instructions are executed by the at least one processor to cause the apparatus perform operations of:
• sending first higher layer signaling to a terminal, wherein the first higher layer signaling configures a first time resource and a first frequency resource, and the first time resource and the first frequency resource are configured to be used for uplink transmission without scheduling;
• and
• sending downlink control information to the terminal, wherein the downlink control information indicates a format of a slot, and the format indicates a transmission direction of a symbol in the slot,
• wherein an uplink symbol in the slot is a time resource that is configured to be used for the uplink transmission without scheduling.