Method and apparatus for uplink transmission

A method at a network node for uplink transmission in a wireless communication system, comprising:

• transmitting a configuration on Scheduling Request (SR) transmission to a terminal device, wherein:
• the configuration is associated with a Logic Channel Group (LCG), and the LCG corresponds to a service offered by the wireless communication system;
• receiving a SR signal from the terminal device, wherein the SR signal is transmitted according to one of a plurality of SR transmission modes, associated with the configuration, that include an SR transmission diversity mode in which the terminal device transmits an SR signal using multiple carriers;
• allocating uplink resource in response to the received SR signal;
• and
• transmitting an uplink resource grant to the terminal device, wherein the uplink resource grant includes an indication of the allocated uplink resources.

An apparatus, comprising:

• one or more processors;
• and
• one or more memories comprising computer program codes, wherein execution of the computer program codes by the one or more processors configures the apparatus to:
• determine a Scheduling Request (SR) transmission mode according to a configuration on SR transmission that is associated with a Logic Channel Group (LCG) Logic Channel Group (LCG), wherein:
• the LCG corresponds to a service needing uplink resources, and
• the determined SR transmission mode is selected by the apparatus from a plurality of a plurality of SR transmission modes, associated with the configuration, that include an SR transmission diversity mode in which the apparatus transmits an SR signal using multiple carriers;
• and
• transmit at least one SR signal to a network node according to the determined SR transmission mode, wherein the at least one SR signal indicates a resource request for uplink transmission.

An apparatus, comprising:

• one or more processors;
• and
• one or more memories comprising computer program codes, wherein execution of the computer program codes by the one or more processors configure the apparatus to:
• transmit a configuration on Scheduling Request (SR) transmission to a terminal device, wherein:
• the configuration is associated with a Logic Channel Group (LCG), and the LCG corresponds to a service offered by a wireless communication system comprising the apparatus;
• receive a SR signal from the terminal device, wherein the SR signal is transmitted according to one of a plurality of SR transmission modes, associated with the configuration, that include an SR transmission diversity mode in which the terminal device transmits an SR signal using multiple carriers;
• allocate uplink resource in response to the received SR signal;
• and
• transmit an uplink resource grant to the terminal device, wherein the uplink resource grant includes an indication of the allocated uplink resources.