Signal transmission method and apparatus

1. A method for transmitting a signal, comprising:

receiving, by a terminal device, first indication information from a network device,

wherein the first indication information indicates a mapping relationship between at least one resource pool and at least one set of a type of a Cyclic Prefix (CP) and subcarrier spacing;

acquiring, by the terminal device, the mapping relationship according to the first indication information;

receiving, by the terminal device, second indication information from the network device in a different communication process from that of the first indication information, wherein the second indication information is used for indicating a first resource pool for transmitting a first signal; wherein the first signal is an uplink data signal or a physical uplink control channel (PUCCH);

determining, by the terminal device, the first resource pool for transmitting the first signal according to the second indication information;

determining, by the terminal device, according to the first resource pool for transmitting the first signal and the acquired mapping relationship, a type of the CP and subcarrier spacing for transmitting the first signal from the at least one set of the type of the CP and subcarrier spacing; and

determining, by the terminal device, the transmission resource for transmitting the first signal from the at least one transmission resource comprised in the first resource pool for transmitting the first signal according to a pre-configured transmission resource index, and transmitting, by the terminal device, the first signal on the transmission resource for transmitting the first signal based on the type of the CP and subcarrier spacing.

2. The method of claim 1 , wherein the resource pool comprises at least one transmission resource; and each transmission resource in the at least one transmission resource comprises at least one of a physical time frequency resource or a sequence resource.

3. A terminal apparatus for transmitting a signal, comprising:

a processor, a transceiver; and

a memory storing instructions, which, when executed by the processor, cause the processor and the transceiver to perform one or more actions comprising:

receiving first indication information from a network device;

wherein the first indication information indicates a mapping relationship between at least one resource pool and at least one set of a type of a Cyclic Prefix (CP) and subcarrier spacing;

acquiring the mapping relationship according to the first indication information;

receiving second indication information from the network device in a different communication process from that of the first indication information, wherein the second indication information is used for indicating a first resource pool for transmitting a first signal; wherein the first signal is an uplink data signal or a physical uplink control channel (PUCCH);

determining the first resource pool for transmitting the first signal according to the second indication information;

determining, according to the first resource pool for transmitting the first signal and the acquired mapping relationship, a type of the CP and subcarrier spacing for transmitting the first signal from the at least one set of the type of the CP and subcarrier spacing; and

determining the transmission resource for transmitting the first signal from the at least one transmission resource comprised in the first resource pool for transmitting the first signal according to a pre-configured transmission resource index, wherein the apparatus transmits the first signal on the transmission resource for transmitting the first signal based on the type of the CP and subcarrier spacing.

4. The apparatus of claim 3 , wherein the resource pool comprises at least one transmission resource; and each transmission resource in the at least one transmission resource comprises at least one of a physical time frequency resource or a sequence resource.

5. The method of claim 1 ,

wherein receiving, by the terminal device, the first indication information from the network device comprises:

receiving, by the terminal device, the first indication information from the network device via user dedicated signaling; and

wherein receiving, by the terminal device, the second indication information comprises:

receiving, by the terminal device, the second indication information via downlink control information (DCI)

wherein the type of the CP includes a regular CP or an extended CP.

6. The apparatus of claim 3 ,

wherein receiving the first indication information from the network device comprises:

receiving the first indication information from the network device via user dedicated signaling; and

wherein receiving the second indication information comprises:

receiving the second indication information via downlink control information (DCI)

wherein the type of the CP includes a regular CP or an extended CP.

7. A network apparatus for transmitting a signal, comprising:

a processor, a transceiver; and

a memory storing instructions, which, when executed by the processor, cause the processor and the transceiver to perform one or more actions comprising:

sending first indication information to a terminal device; wherein the first indication information indicates a mapping relationship between at least one resource pool and at least one set of a type of a Cyclic Prefix (CP) and subcarrier spacing;

sending second indication information to the terminal device in a different communication process from that of the first indication information, wherein the second indication information is used for indicating a first resource pool for transmitting a first signal; wherein the first signal is an uplink data signal or a physical uplink control channel (PUCCH);

wherein the first resource pool for transmitting the first signal is determined according to the second indication information; and

wherein the type of the CP and subcarrier spacing for transmitting the first signal are determined, according to the first resource pool for transmitting the first signal and the acquired mapping relationship, from the at least one set of the type of the CP and subcarrier spacing;

wherein the transmission resource for transmitting the first signal is determined, according to a pre-configured transmission resource index, from the at least one transmission resource comprised in the first resource pool for transmitting the first signal;

receiving the first signal on the transmission resource for transmitting the first signal based on the type of the CP and subcarrier spacing.