Method for transmitting scheduling information, user terminal and base-station node

Abstract

The invention relates to mobile communication field; disclose a dispatching information transmission method and user terminal and the base station node, so that the base station node can obtain the latest SI report, thereby ensure performances of E-DCH ascending grouped dispatching. In the invention, the user terminal record the first PDU sent time in every HARQ process, when the first PDU including SI in anyone of HARQ process is successfully sent, judge whether there is second transmitting PDU including SI in other HARQ process, if there is, then further judge that if the SI included in second PDU is fresher than that of transmitted first PDU, if not, then abandon the SI included in second PDU. At the beginning of abandoning, if the second PDU contains SI and high-level data, users terminal instruct the base station nodes the invalidation of SI in second PDU; If the second PDU just includes SI, then the user terminal terminate the retransmission of the second PDU.

Description

technical field [0001] The present invention relates to the field of mobile communication, and in particular to High Speed ​​Uplink Packet Access (HSUPA for short) technology. Background technique [0002] The Universal Mobile Telecommunication System ("UMTS" for short) is one of the major third generation mobile communication (The Third Generation, "3G" for short) systems in the world at present. The UMTS system consists of three parts, namely a core network (Core Network, "CN" for short), a Universal Mobile Telecommunications System Terrestrial Radio Access Network (UMTS Terrestrial Radio Access Network, "UTRAN" for short), and user terminals. The interface between CN and UTRAN is defined as Iu interface, and the interface between UTRAN and user terminal is defined as Uu interface. [0003] The earliest protocol version of UMTS is R99. In this version, both uplink and downlink services are carried on the basis of a dedicated channel (Dedicated Channel, “DCH” for short), a...

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Problems solved by technology

[0018] In practical application, the above scheme has the following problems: the base station node may not be able to obtain the latest SI report, thus affecting the performance of E-DCH uplink packet scheduling

Moreover, since the SI transmission has a very high priority, even the HARQ process whose service authorization parameter is a special value "Zero_Grant" and the HARQ process that is in an inactive state are allowed to transmit SI. Therefore, it is not difficult to find that in a certain During the HARQ retransmission of an SI report, the user terminal is likely to send a new SI to the base station node

[0021] like Figure 8 As shown, except for the HARQ process for which the old SI report is retransmitted, other HARQ processes may transmit a new SI report, and before the retransmission of the old SI report is completed, if the new SI report has been received by the base station node Successfully received, then, when the old SI report is successfully transmitted, the new SI report will be overwritten, resulting in the base station node not obtaining the latest SI report, which greatly reduces the performance of uplink packet scheduling

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