Method and arrangement to estimate transmission channel characteristics
First Claim
1. A method to estimate a transmission channel characteristic of a transmission channel between a central office station and a remote terminal, said method comprises:
- collecting in said remote terminal channel information;
transferring said channel information from said remote terminal to said central office station;
matching said channel information with a channel and remote terminal simulation model whose parameters define said channel characteristic; and
as a result of said matching, determining values for said parameters of said channel and remote terminal simulation model.
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Accused Products
Abstract
A channel characteristic of a transmission channel (CHANNEL) between a remote terminal (RT) and a central office (CO) is estimated by collecting information in the remote terminal (RT), transferring this information from the remote terminal (RT) to the central office (CO) and matching the received information at the central office (CO) with a channel and remote terminal simulation model. The values of parameters of the latter simulation model, which define the channel characteristic to be estimated, are determined as a result of the matching process. The information collected by the remote terminal (RT) typically is information that is automatically collected by the remote terminal (RT) for operational purposes such as equaliser setting, bit allocation, and so on.
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Citations
10 Claims
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1. A method to estimate a transmission channel characteristic of a transmission channel between a central office station and a remote terminal, said method comprises:
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collecting in said remote terminal channel information;
transferring said channel information from said remote terminal to said central office station;
matching said channel information with a channel and remote terminal simulation model whose parameters define said channel characteristic; and
as a result of said matching, determining values for said parameters of said channel and remote terminal simulation model. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A transmission channel characteristic estimating arrangement for estimating a transmission channel characteristic of a transmission channel between a central office station and a remote terminal, wherein said arrangement comprises:
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information collecting means in said remote terminal adapted to collect channel information;
information transferring means in said remote terminal coupled to said information collecting means, said information transferring means being adapted to transfer said channel information from said remote terminal to said central office station;
information and model matching means adapted to match said channel information with a channel and remote terminal simulation model whose parameters define said channel characteristic; and
parameter value determining means integrated with said information and model matching means and adapted to determine values for said parameters of said channel and remote terminal simulation model.
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9. A remote terminal suitable for communication with a central office station via a transmission channel therebetween, wherein said remote terminal comprises:
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information collecting means adapted to collect channel information;
information transferring means coupled to said information collecting means, said information transferring means being adapted to transfer said channel information from said remote terminal to said central office station to be matched there with a channel and remote terminal simulation model whose parameters define a transmission channel characteristic for said transmission channel and whose values are determined as a result of said matching. - View Dependent Claims (10)
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Specification