Multi purpose digital signal regenerative processing apparatus
First Claim
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1. A multi purpose digital signal regenerative processing apparatus, comprising:
- three modulation sub-systems in parallel, each selectively selectable to enable a plurality of users to access, independently of one another, a sub-band of a frequency band in individually selectable access modes and modulation formats, a first of which modulation sub-systems is configured for access and operation in TDM (Time Division Multiplex) format, a second of which modulation sub-systems is configured for access and operation in FDM (Frequency Division Multiplex) or OFDM (Orthogonal Frequency Division Multiplex) format, and a third of which modulation sub-systems is configured for access and operation in CDM (Code Division Multiplex) format.
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Abstract
A multi purpose digital signal regenerative processing apparatus (1) has three modulation sub-systems (2, 3 and 4) in parallel. Each sub-system is selectively selectable to enable a plurality of users to access, independently of one another, a sub-band of a frequency band in individually selectable access modes and modulation formats. The first sub-system (1) is operable in TDM format, the second (3) is operable in FDM or OFDM format and the third sub-system (4) is operable in CDM format.
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8 Claims
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1. A multi purpose digital signal regenerative processing apparatus, comprising:
three modulation sub-systems in parallel, each selectively selectable to enable a plurality of users to access, independently of one another, a sub-band of a frequency band in individually selectable access modes and modulation formats, a first of which modulation sub-systems is configured for access and operation in TDM (Time Division Multiplex) format, a second of which modulation sub-systems is configured for access and operation in FDM (Frequency Division Multiplex) or OFDM (Orthogonal Frequency Division Multiplex) format, and a third of which modulation sub-systems is configured for access and operation in CDM (Code Division Multiplex) format. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
Specification