Method for keeping continuous packet connection in time division synchronous CDMA access system

Abstract

The invention provides a method for maintaining continuous packet connectivity in a time-division synchronous code division multiple access system. The method comprises the following steps: step S102, a network side simultaneously configures high-speed downlink packet access resource and high-speed uplink packet access resource for a movable termination, wherein, the network side configures an unscheduled uplink enhanced physical channel and an unscheduled enhanced hybrid automatic repeat request acknowledgement indicator channel resource for the movable termination; and step S104, the movable termination periodically transmits the unscheduled uplink enhanced physical channel and receives the unscheduled enhanced hybrid automatic repeat request acknowledgement indicator channel with the frequency being less than or equal to power synchronous threshold. Therefore, the synchronization of power control and uplink is realized without distributing DPCH so as to maintain continuous packet connectivity.

Description

technical field [0001] The present invention relates to a synchronous wireless communication system, more specifically to a time division synchronous code division multiple access system, ie a method for maintaining continuous packet connection in a TD-SCDMA system. Background technique [0002] Packet-oriented high-speed downlink packet access / high-speed uplink packet access (High Speed ​​Downlink Packet Access, referred to as HSDPA; High Speed ​​Uplink Packet Access, referred to as HSUPA) technology can greatly improve the user's transmission rate, but the two The technology has problems of potential transmission interruption, frequent connection termination and reconnection and other unguaranteed quality of service (QoS) mechanisms. However, packet services often need to be online for a long time, and the amount of data may only be intermittent and bursty. Therefore, how to support continuous packet connectivity (CPC, Continuous Packet Connectivity) for users in a wirele...

AI Technical Summary

Problems solved by technology

[0009] In view of the problems existing in the HSDPA and HSUPA technologies of the above-mentioned TD-SCDMA system, the present invention will provide a method for maintaining a continuous packet connection in a TD-SCDMA system, which has solved the problem that the existing system cannot maintain a continuous packet connection, or maintain a continuous packet connection When the channel resources are limited, the power control and uplink synchronization remain uncertain, and the power consumption is too large, etc.

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