Increasing capacity and quality broadband.
The HSPA+ R&D program was the first in the industry to demonstrate a Multi Carrier (MC) HSPA system at MWC 2008. MC-HSPA provides wireless bandwidth aggregation by combining multiple 5MHz HSPA carriers from the same sector to offer a higher data rate pipe to the user which ultimately increases overall capacity. In addition, MC-HSPA leverages the existing operator network resources making it possible for mobile operators to offer customers a much higher quality broadband experience.
Mobile data and applications requiring greater bandwidth are now more prevalent. MC-HSPA provides operators the means to offer higher data rates to all users in the cell, thus enhancing mobile broadband experience. It also significantly increases the number of users that can be supported per carrier for a given user experience.
Multi Carrier can be supported in a number of scenarios, depending on the number of available carriers, the direction of the carriers (i.e. uplink or downlink), the residing bands of the carriers, and whether the same-band carriers are adjacent to each other. 3GPP first introduced MC-HSPA in R8, and has been expanding its capability in subsequently releases to provide further improvements.