Implementaion method for selecting applicable wireless access techniques

Abstract

The method comprises: in the ID information corresponding to each PLMN in the PLMN selection list, setting the indication information used for indicating each radio access approach in order to make a radio terminal capable of fast and accurately selecting the corresponding radio access approach in term of the indication message so as to improve the efficiency of selecting radio terminal.

Description

technical field [0001] The present invention relates to the field of wireless communication technology, in particular to a method for realizing the selection and application of wireless access technology. Background technique [0002] According to 3GPP 23.122, in the automatic PLMN (Public Land Mobile Network) selection mode, when the terminal is turned on and recovers from no coverage area, it should follow the RPLMN (registered PLMN), USIM (3G Subscriber Identity Module) card HPLMN ( PLMNs are searched for in the order of the home PLMN) list, the UPLMN (user PLMN) list, and the OPLMN (operator PLMN) list. When the terminal is in the roaming state, it needs to periodically search for a PLMN with a higher priority than the current VPLMN (visiting PLMN) in the HPLMN list, UPLMN list, and OPLMN list. When the terminal is turned on, the PLMN list is read from the USIM card through the Cu interface, and the list items include the PLMN number and the RAT (Radio Access Technology...

AI Technical Summary

Problems solved by technology

[0016] (1) Operators cannot define the different usage priorities of FDD, TDD LCR and TDD HCR of PLMN according to the needs of network construction or roaming agreement and other network operations;

[0017] (2) Mobile users cannot define different usage priorities of non-HPLMN FDD, TDD LCR and TDD HCR according to their own preferences for tariffs or network service experience;

[0018] (3) During use, the three-mode terminal will search for all three wireless access technologies, resulting in prolonged PLMN search time for the terminal;

[0020] (5) The paging success rate index of the wireless system to the terminal is reduced (the terminal cannot monitor the paging message during the PLMN search process), and it will affect the standby time of the terminal

[0028] In this scheme, the search for the FDD frequency band must be fruitless, so that there is an inevitable unnecessary time-consuming and power-consuming process in this scheme.

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