Method and device for multiple retransmission of paging message

Abstract

Disclosed is a method for retransmitting a paging message multiple times, comprising: determining whether an immediate assignment message exists; sending the immediate assignment message when the immediate assignment message exists; otherwise determining whether a paging message exists; sending the paging message when the paging message exists, placing the sent paging message into a retransmission queue with the highest priority among preset M retransmission queues with the maximum number of retransmission times being M, to be used as a retransmission message, and setting the number of retransmission attempt times of the retransmission message to 0; otherwise deleting retransmission messages with the number of retransmission attempt times being equal to M in all retransmission queues, and sending the retransmission messages in the retransmission queues according to a priority sequence of the retransmission queues; and adding 1 to the number of retransmission attempt times of the retransmission messages of all the retransmission queues, and returning to determine whether the immediate assignment message exists. The method and the device for retransmitting a paging message multiple times provided in the present invention improve the paging success rate at the same time of ensuring the paging message timeliness.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for multiple retransmission of paging messages. Background technique [0002] In the GSM mobile communication system, the paging success rate directly affects user experience and traffic volume, and is an important index to measure network performance. Due to the complexity and time-varying nature of the wireless environment, one or several paging messages may not be successfully received by the terminal due to downlink interference, terminal demodulation failure, etc., so it is necessary for the network side to resend the paging message to improve The probability that the terminal receives a paging message, thereby improving the paging success rate. For the paging retransmission method, there are mainly the following implementation methods at present. [0003] Method 1: Port A resends paging messages. In order to reduce traffic, the resending interval of p...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the retransmission interval is large, the timeliness of the paging message is poor, and the connection delay is large

[0004] Method 2: The BTS (BaseTransceiverStation, Base Transceiver Station) side implements paging message retransmission. There are two main means of implementation. The first one is that the number of paging message retransmissions is fixed. The disadvantage of this method is that it does not fully consider the paging message timeliness, because the common control channel CCCH also sends the immediate assignment message, and generally speaking, the priority of the immediate assignment message is higher than that of the paging message, so it is uncertain when the paging message will be resent, and the resend Sending a fixed number of times may cause the paging message resent by the air interface to lose its timeliness (maybe the caller has hung up at this time)

The second is to increase the priority of the paging message and resend the paging message at the same time. The disadvantage of this method is that it affects the timeliness of sending the immediate assignment message, which leads to multiple accesses of the terminal and an increase in the SD assignment failure rate.

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