A method and device for enhancing random access
A random access and physical random access technology, applied in the field of communication, can solve the problems of high collision probability, loss of uplink synchronization, and the existing technical solutions are not suitable for direct use of TD-SCDMA systems, so as to reduce collision probability and resource allocation. flexible effects
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[0045] The present invention will be further described below by taking the TD-SCDMA system as an example. In a system using HSUPA, the access request sent by the UE to the system is random, that is to say, the Node B does not know when the UE will send data. In addition, the random access request sent by the UE to the system may be an ordinary random access request or an enhanced random access request. Therefore, the present invention proposes a new solution. When the terminal sends an enhanced random access request to the system, the system can perform corresponding processing by using a process similar to ordinary random access, thereby avoiding collision.
[0046]Below, in conjunction with Fig. 4 and Fig. 5, the processing procedure that the terminal sends the enhanced random access request to the system is described in detail, as follows:
[0047] Step 501: UE sends an uplink pilot code to Node B;
[0048] Step 502: Node B detects and receives the uplink pilot code sent ...
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