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Channel structure for communication systems

  • US 6,377,809 B1
  • Filed: 09/16/1997
  • Issued: 04/23/2002
  • Est. Priority Date: 09/16/1997
  • Status: Expired due to Term
First Claim
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1. In a telecommunications system in which spread spectrum techniques are used, and in which a channel structure supports a paging channel, wherein each paging channel is for transmitting paging messages to a plurality of remote stations, and in which the channel structure supports a supplemental channel, wherein each supplemental channel is for transmitting high speed data traffic, the channel structure comprising:

  • a fundamental channel for exchanging voice traffic and data traffic between a remote station of said plurality of remote stations and another base station, wherein said fundamental channel can be used only when said remote station is in a traffic state, and wherein said remote station is in said traffic state only when said remote station is not monitoring the paging channel; and

    a control channel for exchanging signaling information between said remote station and said another station, said control channel comprising control frames, wherein the length of each of said control frames is a fraction of the length of a traffic channel frame, and wherein said control channel can be used only when said remote station is in said traffic state, wherein a reverse link is used to transmit data from a remote station to a base station, and wherein a forward link is used to transmit data from a base station to a remote station, wherein control frames in the reverse link direction comprise one or more reverse link messages comprising;

    erasure indication bits (EIBs) for informing said base station whether frames received on the forward link fundamental and supplemental channels were received as erasures;

    inter-cell power level measurements for informing said base station of the pilot in said remote station'"'"'s active set that was received with the highest energy-per-chip-to-interference ratio, and for identifying to said base station all pilots in said remote station'"'"'s active set whose energy-per-chip-to-interference ratio are within a predetermined power level of the pilot received with said highest energy-per-chip-to-interference ratio;

    inter-carrier power level measurements for informing said base station of the varying strength of pilots received by said remote station on different carrier frequencies; and

    a reverse link data request for requesting a supplemental channel for the transmission of high speed data traffic, wherein said reverse link data request contains a queue size associated with the amount of data ready for transmission on the reverse link, and wherein said reverse link data request contains a power headroom associated with the amount of remaining power that said remote station has available for transmission.

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