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Method, apparatus and computer program providing signaling of zero/full power allocation for high speed uplink packet access (HSUPA)

A zero-power, full-power technology, applied in the field of digital wireless communication systems, can solve problems such as uncertainty

Active Publication Date: 2011-09-14
NOKIA TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To the best of the inventor's knowledge, currently 3GPP participants have not determined how to achieve this "no transmission" signaling to the UE

Method used

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  • Method, apparatus and computer program providing signaling of zero/full power allocation for high speed uplink packet access (HSUPA)
  • Method, apparatus and computer program providing signaling of zero/full power allocation for high speed uplink packet access (HSUPA)
  • Method, apparatus and computer program providing signaling of zero/full power allocation for high speed uplink packet access (HSUPA)

Examples

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Embodiment Construction

[0045] As noted above, embodiments of the present invention relate to power control in wireless communications. There are various ways of implementing the "no transmission" signaling described above. Since transferring the packet scheduler from the RNC to the Node B is being considered, one implementation could be that the Node B simply fails the scheduling of the transmission on the E-DPDCH for a particular UE when no transmission is about to occur, or alternatively Signaling to the UE that the previous but not yet expired radio resource grant is cancelled. The inventors have identified a different method of using the power control regime. Given the above background, it can be determined that it may be advantageous for the Node B to signal the UE to transmit at zero power, or at a power that is not necessarily limited to no higher than +21 dB. Currently, neither of these two methods can be realized in the signaling system of the HSUPA system. The teachings herein are not e...

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Abstract

A network schedules a mobile station for an uplink packet transmission on a data channel, receives from a mobile station an uplink message on a control channel, determines from the uplink message a desired power for the mobile station to transmit on the data channel, and thereafter transmits to the mobile station a power control message that commands either a zero power allocation or a full powerallocation for the scheduled uplink packet transmission. The mobile station receives from the network the power control message, then determines from the power control message whether zero or full power is allocated. If zero power, then the mobile station suspends its transmissions on the data channel until receiving a new power control command for uplink transmissions on the data channel. If full power, the mobile station transmits user data on the data channel without regard to power on a control channel.

Description

technical field [0001] The teachings of the present invention relate generally to wireless communication systems, and more particularly to digital wireless communication systems, in which transmissions over a wireless link from a user equipment (UE) to a network node are power controlled. Background technique [0002] The following abbreviations appearing hereinafter are defined as follows: [0003] DCH dedicated transport channel [0004] DL Downlink (Node B to User Equipment) [0005] DPCCH Dedicated Physical Control Channel [0006] E-AGCH E-DCH absolute grant channel, carrying DL scheduling control information [0007] E-DCH Enhanced (Uplink) Dedicated Channel [0008] E-DPCCH E-DCH dedicated physical control channel, carrying control information related to E-DPDCH in the uplink [0009] E-DPDCH E-DCH dedicated physical data channel, carrying E-DCH data packets in the uplink [0010] E-RGCH E-DCH relative grant channel, carrying DL scheduling control information ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005H04W52/04H04W52/14H04W52/16H04W52/22H04W52/28H04W52/58H04W72/12
CPCH04W52/226H04W52/146H04W72/1268H04W52/58H04W52/286H04W52/16H04B7/2612H04W72/121
Inventor K·朗塔-阿奥B·塞比尔
Owner NOKIA TECH OY