Method and apparatus for sending rearranged cache zone information

Abstract

The implement of the invention discloses a method for sending information of an MAC-hs rearrangement cache area controlled by a wireless link under an unacknowledged mode, which comprises the following steps: receiving UE ability information which is sent by the UE and comprises the total RLC-UM MAC-hs rearrangement cache size IE by a RNC, setting the maximum BUFFERcap of an MAC-hs rearrangement cache area under the RLC-UM in the IE, allocating the rearrangement cache area of an MAC-hs entity for the wireless load of the RLC-UM by the RNC according to the received UE ability information, setting the allocated information of the rearrangement cache area into the RLC-UM MAC-hs rearrangement cache size IE, and sending the RLC-UM MAC-hs rearrangement cache size IE. The implement of the invention further discloses a device for sending information of the MAC-hs rearrangement cache area under the RLC-UM. The method and the system provided by the invention enable a Node B to know the size of the rearrangement cache area of the MAC-hs entity which is allocated for the wireless load of the RLC-UM by the RNC from information units of the rearrangement cache area, and then overcome the defects in the protocol.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method and device for sending rearrangement buffer information. Background technique [0002] With the rapid development of mobile communications and Internet networks, many data services with high requirements on traffic and delay have put forward higher demands on mobile communication systems. In order to meet the growing demand for packet services, especially for downlink services, the 3rd Generation Mobile Communications Standardization Partnership Project (3GPP, 3rdGeneration Partnership Project) proposed the High Speed ​​Downlink Packet Access (HSDPA) technology in 3GPP Release 5 and carried out standardized. [0003] In HSDPA technology, the base station (Node B) is responsible for scheduling the high-speed downlink shared channel (HS-DSCH), that is, the base station is responsible for operating the retransmission mechanism, controlling the coding and modulation of the...

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Problems solved by technology

[0009] However, since only the above information elements are given in the 3GPP TS 25.433 protocol, the method of allocating the MAC-hs rearrangement buffer area for the RLC-UM radio bearer is not given, and in the 3GPP TS25.331 protocol, The UE capability information sent by the UE does not give the maximum value of the MAC-hs reordering buffer under RLC-UM on the UE, and the RNC cannot know the reordering buffer on the UE according to the UE capability information. Therefore, it is impossible to estimate the size of the rearrangement buffer at the UE side and send the estimated size of the rearrangement buffer to the NodeB, so the Node B still cannot know that it is RLC-UM. The size of the reordering buffer carrying the allocated MAC-hs entities

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