Yahoo奇摩 網頁搜尋

搜尋結果

  1. High Speed Packet Access ( HSPA) [1] is an amalgamation of two mobile protocols —High Speed Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA)—that extends and improves the performance of existing 3G mobile telecommunication networks using the WCDMA protocols.

  2. Evolved High Speed Packet Access, HSPA+, HSPA ( Plus) or HSPAP, is a technical standard for wireless broadband telecommunication. It is the second phase of HSPA which has been introduced in 3GPP release 7 and being further improved in later 3GPP releases. HSPA+ can achieve data rates of up to 42.2 Mbit/s. [1]

  3. 其他人也問了

  4. en.wikipedia.org › wiki › E-UTRAE-UTRA - Wikipedia

    It is a radio access network (RAN) meant to be a replacement of the Universal Mobile Telecommunications System (UMTS), High-Speed Downlink Packet Access (HSDPA), and High-Speed Uplink Packet Access (HSUPA) technologies specified in 3GPP releases 5 and beyond.

  5. en.wikipedia.org › wiki › 3GPP3GPP - Wikipedia

    This specification also focus on HSPA+ (High Speed Packet Access Evolution), SIM high-speed protocol and contactless front-end interface (Near Field Communication enabling operators to deliver contactless services like Mobile Payments), EDGE Evolution.

  6. The requirements were set forth by the ITU-R organisation in the IMT Advanced specification; but, because of market pressure and the significant advances that WiMAX, Evolved High Speed Packet Access, and LTE bring to the original 3G technologies, ITU-R

  7. en.wikipedia.org › wiki › 4G4G - Wikipedia

    4G [1] is the fourth generation of broadband cellular network technology, succeeding 3G and preceding 5G. A 4G system must provide capabilities defined by ITU in IMT Advanced. Potential and current applications include amended mobile web access, IP telephony, gaming services, high-definition mobile TV, video conferencing, and 3D television .

  8. en.wikipedia.org › wiki › WiMAXWiMAX - Wikipedia

    Speed vs. mobility of wireless systems: Wi-Fi, High Speed Packet Access (HSPA), Universal Mobile Telecommunications System (UMTS), GSM In the future, competition will be from the evolution of the major cellular standards to 4G , high-bandwidth, low-latency, all-IP networks with voice services built on top.