Method for reinforcing search under omnidirectional emission sector receiving mode

Abstract

The invention discloses a reinforced search method on omnidirectional emission sector receive mode in multipath search technique for mobile communication domain to reduce terminal dropping probability. It is not independent to integrated treat polling result in wireless link, and unified adjusts search window position in three sectors to make all the search window position in wireless link same as the one with biggest SNR.

Description

technical field [0001] The invention relates to the multipath search technology in the field of mobile communication, in particular to the enhanced multipath search technology under the receiving mode of the omnidirectional transmitting sector. Background technique [0002] With the development of mobile communications, the third generation of mobile communications (The Third Generation, referred to as "3G") is gradually commercialized. In the initial stage of 3G network construction, the requirements for network capacity are generally not high, but the network coverage will directly affect the user experience and become one of the most important criteria for users to judge network quality, thus directly affecting the brand of mobile operators Image and user loyalty. How to build a 3G network with effective coverage and capacity that can evolve smoothly with the increase of the number of users at a lower cost has become one of the most concerned issues for mobile operators....

AI Technical Summary

Problems solved by technology

[0010] In practical applications, the above scheme has the following problems: when the terminal moves in different sectors, it may cause call drop

[0011] The main reason for this situation is that in OTSR mode, when the enhanced multipath search is independently performed on each sector in a polling manner, virtual paths may be generated in some sectors, causing the search window to deviate from the normal position , so that when the terminal moves to these sectors, it will not be able to search for multipath, resulting in link out of synchronization, resulting in call drop

For example, in Figure 1, when the terminal is at point A at the junction of two sectors, since the coverage areas of the three antennas are different, the quality of the wireless link of the terminal in the sector where point B is located will be relatively poor. It is possible that there is no multipath at all, but if the sector searches for a virtual path during polling, causing the normal search window of the terminal in this sector to deviate from the normal position of the search window, then when the terminal moves from point A to point B When the point is reached, the multipath will not be searched, resulting in link out-of-synchronization, resulting in call drop

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