Methods for uplink channel/signal transmission, terminal device, and network device

A method for uplink channel/signal transmission, comprising:

• transmitting, by a network device, spatial relation indication information to a terminal device, wherein the spatial relation indication information is used to indicate a target SSB, the spatial relation indication information comprises one of a position index of the target SSB or QCL information of the target SSB, and the spatial relation indication information is used for indicating that target spatial relation information corresponding to the target SSB is used for determining spatial relation information of an uplink channel/signal;
• and
• determining, by the network device, the spatial relation information of the uplink channel/signal according to the target spatial relation information corresponding to the target SSB;
• wherein
• a value range of the position index of the target SSB is related to a size of a transmission window for a DRS, wherein the DRS comprises the target SSB;
• and/or
• a value range of the position index of the target SSB is related to a subcarrier spacing (SCS) of a synchronization signal (SS).

A terminal device, comprising:

• a transceiver;
• a processor;
• and
• a memory configured to store computer programs which, when executed by the processor, are operable with the transceiver to receive spatial relation indication information transmitted by a network device, wherein the spatial relation indication information is used to indicate a target synchronization signal block (SSB), and the spatial relation indication information comprises one of a position index of the target SSB or quasi co-location (QCL) information of the target SSB;
• the computer programs, when executed by the processor, are further operable with the processor to determine spatial relation information of an uplink channel/signal according to target spatial relation information corresponding to the target SSB;
• wherein
• a value range of the position index of the target SSB is related to a size of a transmission window for a DRS, wherein the DRS comprises the target SSB;
• and/or
• a value range of the position index of the target SSB is related to a subcarrier spacing (SCS) of a synchronization signal (SS).

A network device, comprising:

• a transceiver;
• a processor, and
• a memory configured to store computer programs which, when executed by the processor, are operable with the transceiver to transmit spatial relation indication information to a terminal device, wherein the spatial relation indication information is used to indicate a target SSB, the spatial relation indication information comprises one of a position index of the target SSB or QCL information of the target SSB, and the spatial relation indication information is used for indicating that target spatial relation information corresponding to the target SSB is used for determining spatial relation information of an uplink channel/signal, and
• the computer programs, when executed by the processor, are further operable with the processor to determine the spatial relation information of the uplink channel/signal according to the target spatial relation information corresponding to the target SSB;
• wherein
• a value range of the position index of the target SSB is related to a size of a transmission window for a DRS, wherein the DRS comprises the target SSB;
• and/or
• a value range of the position index of the target SSB is related to a subcarrier spacing (SCS) of a synchronization signal (SS).