GSM Switching, Services and Protocols Part 12

Chia sẻ: Van Kent Kent | Ngày: | Loại File: PDF | Số trang:29

0
68
lượt xem
14
download

GSM Switching, Services and Protocols Part 12

Mô tả tài liệu
  Download Vui lòng tải xuống để xem tài liệu đầy đủ

General Packet Radio Service (GPRS) Packet data transmission has already been standardized in GSM phase 2, offering access to the Packet Switched Public Data Network (PSPDN); see Sections 9.5.3 and 9.6.2. However, on the air interface such access occupies a complete circuit switched traf®c channel for the entire call period. In case of bursty traf®c (e.g. Internet traf®c), such access leads to a highly inef®cient resource utilization. It is obvious that in this case, packet switched bearer services result in a much better utilization of the traf®c channels. This is because a packet channel will only be allocated when needed and...

Chủ đề:
Lưu

Nội dung Text: GSM Switching, Services and Protocols Part 12

Đồng bộ tài khoản