Device and method for processing slice-based system access configuration information in wireless communication system
The present disclosure relates to a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system, such as LTE. The present disclosure relates to a wireless communication system and, more specifically, disclosed are a method and a device by which processes slice-based system access configuration information of a terminal in a wireless communication system.
1 . A method performed by a base station in a wireless communication system, the method comprising:
transmitting, to a terminal, a system information block type 1 (SIB1) including configuration information on an initial uplink bandwidth part (BWP), the configuration information including a first random access channel (RACH) configuration associated with a plurality of network slices and a second RACH configuration associated with a general random access, the first RACH configuration including identification information for identifying a set of network slices among the plurality of network slices, first information on a random access resource corresponding to the plurality of network slices, and second information including a parameter for random access prioritization corresponding to the plurality of network slices, the parameter including a power ramping step; and
receiving, from the terminal, a random access preamble associated with the set of network slices, based on the first information and the second information,
wherein the set of network slices is associated with one or more single-network slice selection assistance information (S-NSSAIs).
2 . The method of claim 1 , wherein the first information includes information on at least one random access preamble and information on a mask index for determining a RACH occasion where the random access preamble is received.
3 . The method of claim 1 ,
wherein the parameter further includes a scaling factor for a backoff indicator (BI).
4 . A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, a system information block type 1 (SIB1) including configuration information on an initial uplink bandwidth part (BWP), the configuration information including a first random access channel (RACH) configuration associated with a plurality of network slices and a second RACH configuration associated with a general random access, the first RACH configuration including identification information for identifying a set of network slices among the plurality of network slices, first information on a random access resource corresponding to the plurality of network slices, and second information including a parameter for random access prioritization corresponding to the plurality of network slices, the parameter including a power ramping step; and
transmitting, to the base station, a random access preamble associated with the set of network slices, based on the first information and the second information,
wherein the set of network slices is associated with one or more single-network slice selection assistance information (S-NSSAIs).
5 . The method of claim 4 , wherein the first information includes information on at least one random access preamble and information on a RACH occasion.
6 . The method of claim 4 ,
wherein the parameter further includes a scaling factor for a backoff indicator (BI).
7 . A base station in a wireless communication system, the base station comprising:
a transceiver; and
a controller configured to:
control the transceiver to transmit, to a terminal, a system information block type 1 (SIB1) including a configuration, included in an initial uplink bandwidth part (BWP) of the SIB 1, comprising a first random access channel (RACH) configuration associated with a plurality of network slices and a second RACH configuration associated with a general random access, the first RACH configuration including identification information for identifying a set of network slices among the plurality of network slices, first information on a random access resource corresponding to the plurality of network slices, and second information including at least one parameter for random access prioritization associated with the set of network slices among the plurality of network slices, the at least one parameter including a power ramping step and a backoff indicator (BI), and
control the transceiver to receive, from the terminal, a random access preamble associated with the set of network slices, based on the first information and the second information,
wherein the set of network slices is associated with one or more single-network slice selection assistance information (S-NSSAIs).
8 . The base station of claim 7 , wherein the first information includes information on at least one random access preamble and information on a RACH occasion.
9 . A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
a controller configured to:
control the transceiver to receive, from a base station, a system information block type 1 (SIB1) including a configuration, included in an initial uplink bandwidth part (BWP) of the SIB 1, comprising a first random access channel (RACH) configuration associated with a plurality of network slices and a second RACH configuration associated with a general random access, the first RACH configuration including identification information for identifying a set of network slices among the plurality of network slices, first information on a random access resource corresponding to the plurality of network slices, and second information including at least one parameter for random access prioritization associated with the set of network slices among the plurality of network slices, the at least one parameter including a power ramping step and a backoff indicator (BI), and
control the transceiver to transmit, to the base station, a random access preamble associated with the set of network slices, based on the first information and the second information,
wherein the set of network slices is associated with one or more single-network slice selection assistance information (S-NSSAIs).
10 . The terminal of claim 9 , wherein the first information includes information on at least one random access preamble and information on a RACH occasion.