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Method for channel selection for radio resource control signaling in HSDPA

A signaling method and radio technology, applied in the field of code division multiple access systems, can solve problems such as radio link failure and poor channel conditions

Active Publication Date: 2011-09-14
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Can cause radio link failure if critical RRC messages, such as handover messages, are lost due to poor channel conditions

Method used

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  • Method for channel selection for radio resource control signaling in HSDPA
  • Method for channel selection for radio resource control signaling in HSDPA
  • Method for channel selection for radio resource control signaling in HSDPA

Examples

Experimental program
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Embodiment Construction

[0014] figure 1 An exemplary wireless communication network 10 for providing mobile communication services for one or more mobile stations 100 is shown. The term "mobile station" as used herein means any portable communication device that has the ability to wirelessly connect to a communication network. The term "mobile station" includes (but is not limited to) mobile phones, pagers, personal digital assistants, and laptop or hand-held computers. The exemplary wireless communication network 10 includes Wideband Code Division Multiple Access (WCDMA) as specified by the Third Generation Partnership Project (3GPP). Those familiar with the technology should understand that the present invention can also be applied to mobile communication networks based on other standards, such as cdma 2000 (TIA-2000), 1xEV-DO (TIA-856a) and WiMAX (IEEE 802.16).

[0015] The wireless communication network 10 includes a core network (CN) 20 and one or more radio access networks (RAN) 30 connected to o...

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PUM

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Abstract

A Radio Network Controller (RNC) is configured to send Radio Resource Control (RRC) messages to a mobile station using a selected downlink channel. Depending on the mobility rate of the mobile station, the RNC is configured to configure a signaling connection to use either a first downlink channel or a second downlink channel for transmitting the RRC messages. According to one embodiment, the RNCselects a dedicated channel when the mobile station has a high mobility rate, and selects a shared channel when the mobile station has a low mobility rate.

Description

Technical field [0001] The present invention relates broadly to Code Division Multiple Access (CDMA) systems, and in particular, to radio resource control signaling for High Speed ​​Downlink Packet Access (HSDPA) in CDMA systems. Background technique [0002] High Speed ​​Downlink Packet Access (HSDPA) is a packet data service provided in Wideband Code Division Multiple Access (WCDMA) networks. HSDPA is an evolution of WCDMA specified by the Third Generation Partnership Project (3GPP) in WCDMA standard release 99. The HSDPA used in the WCDMA standard release version 5 uses enhanced functions (such as higher order modulation (16QAM), physical layer retransmission and soft combined hybrid automatic repeat request (H-ARQ), multi-code transmission, fast link adjustment, and fast Scheduling) and provide a peak data rate of up to 10Mbits / s. The transport channel used for HSDPA is the High Speed ​​Downlink Shared Channel (HS-DSCH). The HS-DSCH is carried on the high-speed physical do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/32H04W72/04H04W72/54
CPCY02B60/50
Inventor B·林多夫J·尼尔森
Owner TELEFON AB LM ERICSSON (PUBL)