CPC H04W 74/0833 (2013.01) [H04W 72/0453 (2013.01)] | 14 Claims |
1. A random access method applied to a terminal, the method comprising:
receiving first resource configuration information sent by a network device, wherein the first resource configuration information is used to indicate M first frequency resources and N second frequency resources, and M and N are positive integers greater than or equal to 1;
sending a random access request on a target first frequency resource to the network device; and
receiving a random access response sent by the network device on a target second frequency resource, wherein the target first frequency resource is a free frequency resource in the M first frequency resources, and the target second frequency resource is a free frequency resource in the N second frequency resources,
wherein before sending the random access request on the target first frequency resource to the network device, the method further comprises:
monitoring some or all first frequency resources in the M first frequency resources; and
when the terminal detects that Y first frequency resources in the some or all first frequency resources are free, using at least one of the Y first frequency resources as the target first frequency resource, wherein Y is less than or equal to a quantity of the some or all first frequency resources, and Y is a positive integer greater than or equal to 1,
wherein monitoring some or all first frequency resources in the M first frequency resources comprises: monitoring the some or all first frequency resources in the M first frequency resources according to a first predetermined rule; and
using at least one of the Y first frequency resources as the target first frequency resource comprises: selecting at least one of the Y first frequency resources as the target first frequency resource according to a second predetermined rule, wherein
the first predetermined rule comprises at least one of the following: first frequency resources satisfying a first condition are monitored, and a quantity of monitored first frequency resources is less than or equal to a first threshold; and
the second predetermined rule comprises at least one of the following: first frequency resources satisfying the first condition are selected, or a quantity of selected first frequency resources is less than or equal to a third threshold; wherein the first condition is that a frequency measurement value corresponding to the first frequency resource is greater than or equal to a second threshold, the first threshold is less than or equal to M, and the third threshold is less than or equal to Y.
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