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Detection of control messages for hsdpa in a wireless communication system

A downlink and control message technology, applied in the field of code division multiple access system, can solve problems such as call disconnection, hindering mobile station switching, radio link failure, etc.

Inactive Publication Date: 2012-11-07
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If channel conditions deteriorate significantly, the mobile station may not be able to receive handover messages from the serving base station, which may prevent the mobile station from completing the handover, and may result in radio link failure, i.e. call disconnection

Method used

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  • Detection of control messages for hsdpa in a wireless communication system
  • Detection of control messages for hsdpa in a wireless communication system
  • Detection of control messages for hsdpa in a wireless communication system

Examples

Experimental program
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Embodiment Construction

[0015] figure 1 An exemplary wireless communication network 10 for providing mobile communication services to one or more mobile stations 100 is shown. The term "mobile station" as used herein means any portable communication device having the capability of wirelessly connecting to a communication network. The term "mobile station" includes, but is not limited to, cellular phones, pagers, personal digital assistants, and laptop or hand-held computers. The exemplary wireless communication network 10 includes a Wideband Code Division Multiple Access (WCDMA) system as specified by the Third Generation Partnership Project (3GPP). Those skilled in the art should understand that the present invention can also be applied to mobile communication networks based on other standards, such as cdma2000 (TIA-2000), 1xEV-DO (TIA-856a) and WiMAX (IEEE 802.16).

[0016] The wireless communication network 10 includes a core network (CN) 20 and one or more radio access networks (RAN) 30 connect...

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Abstract

A adaptive method implemented by a mobile station improves the likelihood of detecting control messages transmitted to the mobile station in band on a shared downlink traffic channel. When the mobile station expects a control message to be transmitted on the shared downlink traffic channel, the mobile station may adapt the receiver configuration and / or receiver parameters to reduce a likelihood of missed detection of control messages. In one embodiment, the mobile station is configured to adjust a correlation threshold used for said scheduled transmission detection to reduce the likelihood ofa missed detection.

Description

technical field [0001] The present invention relates generally to code division multiple access (CDMA) systems, and in particular, to radio resource control signaling 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 in Release 99 of the WCDMA standard by the Third Generation Partnership Project (3GPP). HSDPA, as adopted in Release 5 of the WCDMA standard, provides Up to 10Mbits / s peak data rate. The transport channel used for HSDPA is the High Speed ​​Downlink Shared Channel (HS-DSCH). HS-DSCH is carried on the High Speed ​​Physical Downlink Shared Channel (HS-PDSCH). [0003] HS-DSCH is a time multiplexed channel shared by multiple mobile stations. A number of mobile stations are scheduled to receive data transmitted by the serving base station on the HS-PDSCH. The scheduling interval is called...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W88/02
Inventor B·林多夫J·尼尔森
Owner TELEFON AB LM ERICSSON (PUBL)