Any process that activates or increases the frequency, rate or extent of signaling pathways initiated by the cross-linking of an antigen receptor on a B cell.
Synonyms:
exact_synonym:
positive regulation of B cell receptor signalling pathway; positive regulation of B lymphocyte receptor signaling pathway; positive regulation of B lymphocyte receptor signalling pathway; up regulation of B cell receptor signaling pathway; upregulation of B cell receptor signaling pathway
narrow_synonym:
activation of B cell receptor signaling pathway; stimulation of B cell receptor signaling pathway