Method and device for searching network through CDMA (Code Division Multiple Access) single-mode chip multi-standby terminal
By merging the roaming lists PRL of multiple users, the problem that CDMA single-mode chip terminals cannot realize multi-user network search is solved, and multi-user network search of CDMA single-mode chip terminals is realized, which improves user experience and reduces costs.
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Embodiment 1
[0021] figure 1 This is a flow chart of a method for searching a network for a CDMA single-mode chip multi-standby terminal according to an embodiment of the present invention. Such as figure 1 As shown, the method of this embodiment includes the following steps:
[0022] Step S102, the terminal extracts multiple roaming lists PRLs of its own users;
[0023] Step S104, merging the PRLs of multiple belonging users, and obtaining the union of the PRLs of multiple belonging users;
[0024] Step S106, based on the union of the PRLs of multiple subordinate users, make a network decision for the multi-standby terminal of the CDMA single-mode chip.
[0025] In this embodiment, the union of the respective PRLs of multiple users is taken as the PRL of the dual-card multi-standby mobile phone, and a reasonable PRL is obtained. Then, according to the network search process specified in the existing CDMA protocol, the frequency points in the PRL Demodulate one by one according to priority until ...
Embodiment 2
[0027] When merging the PRLs of multiple affiliated users, various situations will be encountered, and this embodiment will provide solutions to various situations. In this embodiment, two users are taken as an example, and the description of multi-users and such will not be repeated.
[0028] 1. If two users use the same PRL, the dual standby terminal also uses this PRL.
[0029] 2. If the PRL of one user completely contains all the contents of the PRL of another user, the dual-standby terminal uses the larger and complete PRL as the basis for searching the network.
[0030] 3. In the case of different PRLs, after taking the PRL of one of the two users and subtracting the intersection of the PRLs of the two users, the remaining entries are added to the PRL of the other user as a union according to the SID / NID index.
[0031] This embodiment has all the beneficial effects of the first embodiment, and since various situations are distinguished in detail, its practicability is stronger....
Embodiment 3
[0033] This embodiment will describe in detail the merging process in the case of different PRLs in the second embodiment. figure 2 It is a flow chart of processing different PRL situations in the method for searching the network of a CDMA single-mode chip with multiple standby terminals in the third embodiment of the present invention. Assume that there are user 1 and user 2 in the terminal, and the overlapping entries in the PRL of user 2 and the PRL of user 1 have been deleted, such as figure 2 As shown, this embodiment includes the following steps:
[0034] Step S202: Search for the SID / NID contained in the entry (indicated by s) in the PRL of user 2 that is to be added to the PRL of user 1 in the System Records of the PRL of user 1;
[0035] Step S204, if yes, if yes, go to step S206, otherwise, go to step S208;
[0036] Step S206: Add the frequency points contained in this entry of user 2's PRL to the entry of user 1's PRL, and perform step S218;
[0037] Step S208, check whet...
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