切换流程-空口信令

2016 Jan  1  23:57:02.229  [08]  0xB0E3  LTE NAS ESM Plain OTA Outgoing Message  -- PDN connectivity request Msg

pkt_version = 1 (0x1)

rel_number = 9 (0x9)

rel_version_major = 5 (0x5)

rel_version_minor = 0 (0x0)

eps_bearer_id_or_skip_id = 0 (0x0)

prot_disc = 2 (0x2) (EPS session management messages)

trans_id = 6 (0x6)

msg_type = 208 (0xd0) (PDN connectivity request)

lte_esm_msg

  pdn_connectivity_req

    pdn_type = 3 (0x3) (Ipv4v6)

    req_type = 2 (0x2) (Handover)

    info_trans_flag_incl = 0 (0x0)

    access_pt_name_incl = 1 (0x1)

    access_pt_name_

      num_acc_pt_val = 4 (0x4)

      acc_pt_name_val[0] = 3 (0x3) (length)

      acc_pt_name_val[1] = 105 (0x69) (i)

      acc_pt_name_val[2] = 109 (0x6d) (m)

      acc_pt_name_val[3] = 115 (0x73) (s)

    prot_config_incl = 1 (0x1)

     当从WLAN切换到EUTRAN后，对于要切换

的PD发起连接时，类型需要设置为handover

如果不是切换的PDN，则还用传统的initial request