Method and system for transmitting packet data in high-speed down grouped access

Abstract

The invention can make the small packet used in VoIP low rate transmission in HSDPA capable of effectively utilizing the radio network resources. In the invention, multi UEs are set into one UE group, and a H-TNTI is allocated to each group; multiplexing the data of multi UEs in the group into one MAC-hs PDU which is send out; according to H-RNTI of group where the UE locates at, the UE gets the MAC-hs PDU, and resolves its own packet data; further, the packet data in different priority queues of same UE can be multiplexed into one MAC-hs PDU to transmit.

Description

technical field [0001] The invention relates to a high-speed downlink packet access technology, in particular to the transmission of packet data in the high-speed downlink packet access. Background technique [0002] The third-generation mobile communication system UMTS (Universal Mobile Telecommunication System, Universal Mobile Communication System) system is favored due to its powerful multimedia communication capabilities, high-speed data transmission rate and efficient spectrum utilization, and has become the future mobile communication system. development goals. One of the important features of the R5 version of UMTS technology is High Speed ​​Downlink Packet Access (High Speed ​​Downlink Packet Access, referred to as "HSDPA"), that is, through adaptive modulation and coding (Adaptive Modulation and Coding, referred to as "AMC"), hybrid retransmission (Hybrid Automatic-Repeat-reQuest, referred to as "HARQ"), and a series of key technologies such as fast scheduling of ...

AI Technical Summary

Problems solved by technology

[0020] In practical application, the above solution has the following problems: When transmitting VoIP and other medium-low rate small packet services based on HSDPA, the utilization rate of wireless resources is low

[0021] The main reason for this situation is that in the prior art, HSDPA can only transmit packet data in one MAC-hs priority queue in one UE in one TTI, and the total peak rate of VoIP services based on HSDPA is low. If different packet data streams in VoIP are further subdivided and then transmitted on different MAC-hs priority queues, each priority queue will have a lower rate, which is far less than the transmission bandwidth of HSDPA, resulting in a large number of remaining The transmission bandwidth cannot be utilized, and there is still a large amount of data waiting to be transmitted in other MAC-hs priority queues in this UE or many other UEs using VoIP services in this cell

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