A method for transmitting an uplink signal, comprising: obtaining , by a serving cell network element of a serving cell, a first power loss generated during signal transmission between the serving cell network element and a user equipment; wherein the serving cell is a cell to which the user equipment belongs; obtaining , by the serving cell network element, a second power loss generated during signal transmission between a neighboring cell network element of at least one neighboring cell of the serving cell and the user equipment; determining , by the serving cell network element, whether the second power loss is less than the first power loss, and when a determination result is yes, using a cell corresponding to the second power loss as an allocating cell; determining whether the first power loss is greater than a first preset threshold, and determining whether the second power loss is less than a second preset threshold, and when determination results are yes, instructing , by the serving cell network element, an allocating cell network element of the allocating cell to allocate the user equipment with a network resource for sending the uplink signal; or determining whether a difference between the first power loss and the second power loss is greater than a preset threshold value, and when a determination result is yes, instructing , by the serving cell network element, an allocating cell network element of the allocating cell to allocate the user equipment with a network resource for sending the uplink signal; receiving , by the serving cell network element of the serving cell, information that is of the network resource and sent by the allocating cell network element of the allocating cell; and sending , by the serving cell network element, the information of the network resource to the user equipment, so that the user equipment sends the uplink signal by using the network resource;. obtaining , by a serving cell network element of a serving cell, a first power loss generated during signal transmission between the serving cell network element and a user equipment; wherein the serving cell is a cell to which the user equipment belongs; obtaining , by the serving cell network element, a second power loss generated during signal transmission between a neighboring cell network element of at least one neighboring cell of the serving cell and the user equipment; determining , by the serving cell network element, whether the second power loss is less than the first power loss, and when a determination result is yes, using a cell corresponding to the second power loss as an allocating cell; determining whether the first power loss is greater than a first preset threshold, and determining whether the second power loss is less than a second preset threshold, and when determination results are yes, instructing , by the serving cell network element, an allocating cell network element of the allocating cell to allocate the user equipment with a network resource for sending the uplink signal; or determining whether a difference between the first power loss and the second power loss is greater than a preset threshold value, and when a determination result is yes, instructing , by the serving cell network element, an allocating cell network element of the allocating cell to allocate the user equipment with a network resource for sending the uplink signal; receiving , by the serving cell network element of the serving cell, information that is of the network resource and sent by the allocating cell network element of the allocating cell; and sending , by the serving cell network element, the information of the network resource to the user equipment, so that the user equipment sends the uplink signal by using the network resource;. <EOS>