CPC H04W 76/19 (2018.02) [H04W 8/24 (2013.01); H04W 24/10 (2013.01); H04W 76/27 (2018.02)] | 16 Claims |
1. A link detection method, comprising:
determining, by a terminal device, that a first radio link, between the terminal device and an access network device has failed;
detecting, by the terminal device, a second radio link, between the terminal device and the access network device;
receiving downlink information of the second radio link that is broadcast by the access network device over the first radio link, wherein the downlink information of the second radio link is used to detect a downlink quality of the second radio link;
determining that the downlink quality of the second radio link is such that the second radio link is useable; and
communicating with the access network device over the second radio link.
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