A method for transmitting status report

Abstract

This invention discloses one status message sending method, which comprises the following steps: a, finding whether there is a process data unit to carry the status message, if there is then executing step C; otherwise executing step b; b, processing the un-processed data to generate the data unit to carry the said status message; c, sealing the message to the data unit filling part and sending the message status data unit.

Description

technical field [0001] The invention relates to communication data transmission technology, in particular to a method for sending status reports. Background technique [0002] The Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System) is a third-generation mobile communication system that adopts Wideband Code Division Multiple Access (WCDMA) air interface technology, and it is usually called a WCDMA system. The UMTS system adopts a structure similar to that of the second-generation mobile communication system, including a radio access network (RAN, Radio Access Network) and a core network (CN, CoreNetwork), where the radio access network is used to handle all wireless-related Function, the core network is responsible for handling all voice calls and data connections in the UMTS system, and realizes the switching and routing functions with external networks. In actual networking, the Universal Terrestrial Radio Access Network (UTRAN), c...

AI Technical Summary

Problems solved by technology

[0030] The disadvantage of using the piggyback mechanism to send status reports in the prior art is that the RLC AM entity immediately segments the SDUs from the upper layer and assembles them into fixed-length AMD PDUs, which will also be cascaded, especially in bursty traffic. Under the model, a great role of concatenation is to reduce padding bytes

The resulting AMD PDU has a relatively small probability of filling, so there is not enough space to piggyback the status PDU, and the benefits brought by the piggybacking mechanism cannot be fully utilized. Therefore, independent status PDUs can only be composed and filled to a fixed size Send status reports, resulting in waste of link resources

This shortcoming is more prominent when the content of the status report itself is smaller than the length of the RLC PDU, the status report is sent more frequently, and the number of PDUs allowed to be sent per unit time is small, because the sending of a small amount of status reports will take up more link resources, further affecting the same RLC AM entity to send AMD PDUs, resulting in sending congestion

[0031] The above-mentioned problems not only appear in the ARQ mechanism of the WCDMA system, because in the Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, there is also an ARQ mechanism in the Acknowledgment Mode (AM) of the RLC protocol, so in the TD-SCDMA system also have the same problem

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