A communication method by a user equipment, UE (301, 801, 1001, 1201, 1401, 1601, 2135, 2300), in a wireless communication system, the method comprising: receiving, from a base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305), system information including a public land mobile network, PLMN, list associated with an application specific congestion control for data communication, ACDC, a category list including at least one category associated with the ACDC, ACDC parameters and access class barring, ACB, parameters, wherein each of the ACDC parameters corresponds to each category included in the category list, identifying, whether a home PLMN,HPLMN, of the UE (301, 801, 1001, 1201, 1401, 1601, 2135, 2300), a registered PLMN, RPLMN, or a selected PLMN is included in the PLMN list associated with the ACDC; in case that the HPLMN of the UE, a RPLMN, or a selected PLMN is included in the PLMN list associated with the ACDC, determining whether the UE (301, 801, 1001, 1201, 1401, 1601, 2135, 2300) is allowed to gain an access to the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305) based on an ACDC parameter corresponding to a category associated with a service triggering a radio resource control, RRC, connection; in case that the HPLMN, of the UE, a RPLMN, or a- selected PLMN is not included in the PLMN list associated with the ACDC, determining whether the UE (301, 801, 1001, 1201, 1401, 1601, 2135, 2300) is allowed to gain the access to the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305) based on an ACB parameter; and determining to establish the RRC connection with the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305) in case that the UE (301, 801, 1001, 1201, 1401, 1601, 2135, 2300) is allowed to gain the access to the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305), wherein the ACDC parameter and the ACB parameter include at least one of a barring factor for determining whether the access to the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305) is allowed and a barring time associated with time for which the access is barred, wherein determining whether the UE (301, 801, 1001, 1201, 1401, 1601, 2135, 2300) is allowed to gain the access to the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305) further comprises generating a random value higher than or equal to 0 and lower than 1, and determining that the access is allowed in case that the random value is lower than a value indicated by the barring factor. receiving, from a base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305), system information including a public land mobile network, PLMN, list associated with an application specific congestion control for data communication, ACDC, a category list including at least one category associated with the ACDC, ACDC parameters and access class barring, ACB, parameters, wherein each of the ACDC parameters corresponds to each category included in the category list, identifying, whether a home PLMN,HPLMN, of the UE (301, 801, 1001, 1201, 1401, 1601, 2135, 2300), a registered PLMN, RPLMN, or a selected PLMN is included in the PLMN list associated with the ACDC; in case that the HPLMN of the UE, a RPLMN, or a selected PLMN is included in the PLMN list associated with the ACDC, determining whether the UE (301, 801, 1001, 1201, 1401, 1601, 2135, 2300) is allowed to gain an access to the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305) based on an ACDC parameter corresponding to a category associated with a service triggering a radio resource control, RRC, connection; in case that the HPLMN, of the UE, a RPLMN, or a- selected PLMN is not included in the PLMN list associated with the ACDC, determining whether the UE (301, 801, 1001, 1201, 1401, 1601, 2135, 2300) is allowed to gain the access to the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305) based on an ACB parameter; and determining to establish the RRC connection with the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305) in case that the UE (301, 801, 1001, 1201, 1401, 1601, 2135, 2300) is allowed to gain the access to the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305), wherein the ACDC parameter and the ACB parameter include at least one of a barring factor for determining whether the access to the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305) is allowed and a barring time associated with time for which the access is barred, wherein determining whether the UE (301, 801, 1001, 1201, 1401, 1601, 2135, 2300) is allowed to gain the access to the base station (110, 303, 610, 803, 1003, 1403, 1603, 2105, 2305) further comprises generating a random value higher than or equal to 0 and lower than 1, and determining that the access is allowed in case that the random value is lower than a value indicated by the barring factor.