Method for dynamic channel selection

Abstract

The invention discloses a method for dynamic channel selection, which comprises: an RNC releases service volume measurement and control types preset corresponding to the current state of a terminal and all parameters contained by each measurement type according to the current state of the terminal; the service volume measurement and control types comprise 4A measurement and 4B measurement, and each measurement type comprises at least two sets of parameters; the current state of the terminal can be E-DCH state, DCH state or RACH state; an UE conducts service volume measurement according to the service volume measurement and control types and the parameters released by the RNC, and submits a corresponding measurement report when any parameter is satisfied; and the RNC conducts channel reallocation according to the measurement report and the current state of the terminal. By adopting the method, the invention has the advantages that the utilization ratio of the system resource is improved and the access success rate of other users is improved.

Description

technical field [0001] The invention relates to a transmission channel selection technology of a mobile terminal, in particular to a dynamic channel selection method. Background technique [0002] Data domain service (PS: Packet Service) Rate control is an important function of the TD-SCDMA system. This function can adapt to the change of the service source rate, thereby dynamically adjusting the channel configuration, reasonably configuring the channel resources occupied by the user according to the change of the service source rate, meeting the service needs of the user, improving the utilization rate of system resources, and improving the access success rate of other users. When the user's service rate reaches a certain limit, it is necessary to perform state migration for the user, including the migration from the dedicated channel to the public channel when the service rate is reduced, the migration from the public channel to the dedicated channel when the service rate ...

AI Technical Summary

Problems solved by technology

The existing service volume measurement and reporting method causes the RNC to only evaluate the state transition of the PS service with one set of parameters each time. For example, after the mobile terminal reports the 4B event, if the RNC determines that the UE is in a certain service rate in the dedicated channel state DCH state, it will Judging that the mobile terminal migrates to the lower service rate of DCH or migrates to the public channel state (FACH: Forward Access Channel)

Generally, the 4B thresholds required for transition to these two states are different, but due to the threshold limit issued by the traffic measurement control, the RNC can only issue the traffic measurement control according to one set of parameters at the same time, which will affect the network control flexibility

[0006] Secondly, the mobile terminal does not support traffic measurement in the E-DCH state, although in the existing protocol, the mobile terminal can complete the traffic measurement in the E-DCH state, and can report to the base station scheduler through scheduling information (SI: Scheduling Information) (Node B Scheduler) reports the status of the buffer area, but according to the current 3GPP 25.427 protocol, Node B does not have an interface to feed this information back to (RNC), so the RNC cannot determine the current traffic volume of the UE in the E-DCH state, and cannot Changes in terminal traffic, rationally configure channel resources occupied by users in the current E-DCH state, and meet user business needs, improve system resource utilization, and increase other user access success rates according to service source rate changes

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