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演進式HSPA （又名：HSPA Evolution、I-HSPA或Internet HSPA，常简称为 HSPA+），定義於 3GPP release 7。. 在使用 MIMO 技術以及更高速的 調變 技術下，HSPA+提供HSPA的數據傳輸率達到下行42Mbit/s以及上行23Mbit/s,這種技術現在被稱為DC-HSPA+。. HSPA+引入了波束成形和多輸入多 ...
演进式HSPA （又名：HSPA Evolution、I-HSPA或Internet HSPA，常简称为 HSPA+ ），定义于 3GPP release 7。 在使用 MIMO 技术以及更高速的 调变 技术下，HSPA+提供HSPA的数据传输率达到下行42Mbit/s以及上行23Mbit/s,这种技术现在被称为DC-HSPA+。 HSPA+引入了波束成形和多输入多输出通讯（MIMO）等天线阵列技术。 波束成形将天线的发射功率集中到用户方向的波束。 MIMO 在传送端和接收端使用多个天线。 该标准的进一步版本引入了双载波操作，即同时使用两个 5 MHz 载波。
演進式HSPA（又名：HSPA Evolution、I-HSPA或Internet HSPA，常簡稱為HSPA+），定義於3GPP release 7。 在使用 MIMO 技術以及更高速的 調變 技術下，HSPA+提供HSPA的數據傳輸率達到下行42Mbit/s以及上行23Mbit/s,這種技術現在被稱為DC-HSPA+。
- Downlink
- Uplink
- Multi-Carrier HSPA
- All-Ip Architecture
- See Also
- External Links
Evolved HSDPA
An Evolved HSDPA network can theoretically support up to 28 Mbit/s and 42 Mbit/s with a single 5 MHz carrier for Rel7 (MIMO with 16QAM) and Rel8 (64-QAM + MIMO), in good channel conditions with low correlation between transmit antennas. Although real speeds are far lower. Besides the throughput gain from doubling the number of cells to be used, some diversity and joint scheduling gains can also be achieved. The QoS (Quality of Service) can be particularly improved for end users in poor radio...
Dual-Carrier HSDPA
Dual-Carrier HSDPA, also known as Dual-Cell HSDPA, is part of 3GPP Release 8 specification. It is the natural evolution of HSPA by means of carrier aggregationin the downlink. UMTS licenses are often issued as 5, 10, or 20 MHz paired spectrum allocations. The basic idea of the multicarrier feature is to achieve better resource utilization and spectrum efficiency by means of joint resource allocation and load balancing across the downlink carriers. New HSDPA User Equipment categories 21-24have...
User Equipment (UE) Categories
The following table is derived from table 5.1a of the release 11 of 3GPP TS 25.306 and shows maximum data rates of different device classes and by what combination of features they are achieved. The per-cell per-stream data rate is limited by the Maximum number of bits of an HS-DSCH transport block received within an HS-DSCH TTI and the Minimum inter-TTI interval. The TTI is 2 ms. So for example Cat 10 can decode 27,952 bits/2 ms = 13.976 Mbit/s (and not 14.4 Mbit/s as often claimed incorrect...
Dual-Carrier HSUPA
Dual-Carrier HSUPA, also known as Dual-Cell HSUPA, is a wireless broadband standard based on HSPA that is defined in 3GPP UMTS release 9.Dual Cell (DC-)HSUPA is the natural evolution of HSPA by means of carrier aggregation in the uplink.UMTS licenses are often issued as 10 or 15 MHz paired spectrum allocations. The basic idea of the multicarrier feature is to achieve better resource utilization and spectrum efficiency by means of joint resource allocation and load balancing across the uplink...
User Equipment (UE) Categories
The following table shows uplink speeds for the different categories of Evolved HSUPA.
The aggregation of more than two carriers has been studied and 3GPP Release 11 is scheduled to include 4-carrier HSPA. The standard was scheduled to be finalised in Q3 2012 and first chipsets supporting MC-HSPA in late 2013. Release 11 specifies 8-carrier HSPA allowed in non-contiguous bands with 4 × 4 MIMO offering peak transfer rates up to 672 Mb...
A flattened all-IP architecture is an option for the network within HSPA+. In this architecture, the base stations connect to the network via IP (often Ethernet providing the transmission), bypassing legacy elements for the user's data connections. This makes the network faster and cheaper to deploy and operate. The legacy architecture is still per...
演进式HSPA（又名：HSPA Evolution、I-HSPA或Internet HSPA，常简称为HSPA+），定义于3GPP release 7。 在使用 MIMO 技术以及更高速的 调变 技术下，HSPA+提供HSPA的数据传输率达到下行42Mbit/s以及上行23Mbit/s,这种技术现在被称为DC-HSPA+。
HSPA+ 是 HSPA 的演進，可升級現有 3G 網絡，並為電信運營商提供一種遷移到 4G 速度的方法，該速度與較新LTE網絡的初始可用速度更具可比性，而無需部署新的無線電接口。
演进式HSPA （又名：HSPA Evolution、I-HSPA或Internet HSPA，常简称为 HSPA+），定义于 3GPP release 7。 在使用 MIMO 技术以及更高速的 调制 技术下，HSPA+提供HSPA的数据传输率达到下行42Mbit/s以及上行23Mbit/s,这种技术现在被称为DC-HSPA+。 HSPA+引入了波束成形和多输入多输出通讯（MIMO）等天线阵列技术。 波束成形将天线的发射功率集中到用户方向的波束。 MIMO 在传送端和接收端使用多个天线。 该标准的进一步版本引入了双载波操作，即同时使用两个 5 MHz 载波。
