Method, apparatus, and system for selecting serving nodes for access

摘要

Embodiments of the present invention provide a method, an apparatus, and a system for selecting serving nodes for access, where the method includes: obtaining reference signal received parameters of at least two nodes; selecting a downlink serving node from the at least two nodes according to the reference signal received parameter of each node; and sending an uplink signal, so that the downlink serving node selects an uplink serving node from the at least two nodes according to the uplink signal; or, selecting an uplink serving node from the at least two nodes according to the reference signal received parameter of each node, and sending an uplink signal. In the embodiments of the present invention, a user equipment selects a downlink serving node from at least two nodes according to the reference signal received parameter of each node; then the user equipment sends an uplink signal.

主权项

1. A method for selecting serving nodes for access, comprising:
obtaining reference signal receiving parameters of at least two nodes, wherein the reference signal receiving parameters comprise reference signal receiving power or reference signal receiving quality; selecting a downlink serving node from the at least two nodes according to the reference signal receiving parameter of each of the nodes; and sending an uplink signal, so that the downlink serving node selects an uplink serving node from the at least two nodes according to the uplink signal; or, selecting an uplink serving node from the at least two nodes according to the reference signal receiving parameter of each of the nodes, and sending an uplink signal, so that a binding relationship is established between the uplink serving node and the downlink serving node; wherein the uplink signal is used to enable user equipment to be synchronized with the uplink serving node; and wherein the enabling the user equipment to be synchronized with the uplink serving node comprises: instructing the user equipment to send a specified uplink random access sequence in a specified random access resource, so that the uplink serving node detects an uplink synchronization offset of the user equipment, whereupon the user equipment corrects the uplink synchronization offset according to signaling sent by the downlink serving node to implement synchronization between the user equipment and the uplink serving node.