A method for asynchronization and synchronization detection of wireless link

Abstract

The utility model discloses a method for realizing the synchronous and desynchronizing detection of a wireless link. The method comprising that a monitoring cycle is preset as the closest X channel transmission cycles; then the quality of the channels are monitored within the monitoring cycle, and the synchronous or the desynchronizing source language is produced, so the synchronous and the desynchronizing condition of the wireless link can be determined. The transmission channel is used within the monitoring cycle of the utility model, therefore, the channels within the monitoring cycle such as the up DPCCH or the down F-DPCH both have signals to send even if the permanent on-line users are in a long interval discontinuous sending mode, which realizes the correct monitor of the synchronous and the desynchronizing of the wireless link, achieves the purpose of monitoring the synchronous and the desynchronizing of the wireless link, guarantees the transmission quality of the wireless link, and improves the QoS for the users.

Description

technical field [0001] The invention relates to wireless link detection technology, in particular to a method for realizing synchronous and out-of-synchronization detection of wireless links. Background technique [0002] In order to increase the number of online users of packet services, the Third Generation Partnership Project (3GPP) proposed a work item (WI) of Continuous connectivity for packet data users. [0003] The permanent online work project hopes to adopt some technical means to enable the user terminal (UE) to remain in the dedicated channel connection state, that is, the CELL_DCH state, for a long time when there is no data to send, and at the same time reduce the consumption of air interface resources. In the existing wideband code division multiple access (WCDMA) protocol, when the UE is in the CELL_DCH state, the uplink dedicated physical control channel (DPCCH) must send signals continuously to maintain link synchronization and inner loop power control Sta...

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Problems solved by technology

[0006] 2. Uplink DPCCH discontinuous transmission (Uplink DPCCH Gating), that is, when the UE has no data to send, the uplink DPCCH is not sent continuously, but is sent in a short sequence according to a set sequence in units of 2ms subframes, thereby reducing the uplink DPCCH Gating. The overall transmission power of DPCCH and the interference to other users;

[0017] Judging from the wireless link out-of-synchronization detection method stipulated in the above-mentioned existing protocol, the monitoring of the wireless link is carried out within the latest 160ms. Permanent online technology, if the permanent online user is in the long-interval discontinuous transmission mode, that is, the discontinuous transmission interval of the downlink F-DPCH or uplink DPCCH is long, if it reaches the second level, it may be within 160ms, and the downlink F-DPCH or uplink DPCCH In this way, it is meaningless to use the method stipulated in the protocol to detect the channel quality of the uplink / downlink wireless link, and the purpose of detecting out-of-synchronization of the wireless link cannot be achieved. Out-of-synchronization detection, which affects the transmission quality of the wireless link and reduces the user quality of service (QoS)

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