Point-to-multipoint digital radio frequency transport
DC CAFCFirst Claim
1. A system for digital transport of a wireless spectrum, the system comprising:
- a first unit; and
a plurality of second units communicatively coupled to the first unit using at least one wired communication link and remotely located from the first unit;
wherein each of the plurality of second units receives a respective analog wireless signal comprising the wireless spectrum and any transmissions from any wireless units within a respective coverage area associated with that second unit;
wherein each of the plurality of second units is configured to generate respective digital samples indicative of at least a portion of the wireless spectrum of the respective analog wireless signal received at that second unit;
wherein each of the plurality of second units is configured to communicate the respective digital samples generated by that second unit to the first unit using the at least one wired communication link;
wherein the first unit is configured to digitally sum corresponding digital samples derived from the digital samples received from the plurality of second units to produce summed digital samples; and
wherein the system is configured so that an input used for base station processing is derived from the resulting summed digital samples.
11 Assignments
Litigations
1 Petition
Accused Products
Abstract
One embodiment is directed to a system for use with a coverage area in which one or more wireless units wirelessly transmit using a wireless radio frequency spectrum. The system comprises a first unit, and a plurality of second units communicatively coupled to the first unit using at least one communication medium. Each of the plurality of second units generates respective digital RF samples indicative of a respective analog wireless signal received at that second unit. Each of the plurality of second units communicates the respective digital RF samples generated by that second unit to the first unit using the at least one communication medium. The first unit digitally sums corresponding digital RF samples received from the plurality of second units to produce summed digital RF samples. The system is configured so that an input used for base station processing is derived from the resulting summed digital RF samples.
76 Citations
57 Claims
-
1. A system for digital transport of a wireless spectrum, the system comprising:
-
a first unit; and a plurality of second units communicatively coupled to the first unit using at least one wired communication link and remotely located from the first unit; wherein each of the plurality of second units receives a respective analog wireless signal comprising the wireless spectrum and any transmissions from any wireless units within a respective coverage area associated with that second unit; wherein each of the plurality of second units is configured to generate respective digital samples indicative of at least a portion of the wireless spectrum of the respective analog wireless signal received at that second unit; wherein each of the plurality of second units is configured to communicate the respective digital samples generated by that second unit to the first unit using the at least one wired communication link; wherein the first unit is configured to digitally sum corresponding digital samples derived from the digital samples received from the plurality of second units to produce summed digital samples; and wherein the system is configured so that an input used for base station processing is derived from the resulting summed digital samples. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A first unit used in digital transport of a wireless spectrum, the first unit comprising:
-
at least one interface to communicatively couple the first unit to a plurality of second units using at least one wired communication link, wherein each of the plurality of second units is remotely located from the first unit and each of the plurality of second units receives a respective analog wireless signal comprising the wireless spectrum and any transmissions from any wireless units that are within a coverage area associated with that second unit and wherein each of the plurality of second units is configured to generate respective digital samples indicative of at least a portion of the wireless spectrum of the respective analog wireless signal received at that second unit, wherein the interface is used to receive the digital samples from the plurality of second units; a digital summer to digitally sum corresponding digital samples derived from the digital samples received from the plurality of second units to produce summed digital samples; and wherein the first unit is configured so that an input used for base station processing is derived from the resulting summed digital samples. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
-
31. A method for digital transport of a wireless spectrum used with a first unit and a plurality of second units, each of the plurality of second units being remotely located from the first unit, the method comprising:
-
at each of the plurality of second units; receiving a respective analog wireless signal comprising the wireless spectrum and any transmissions from any of the wireless units that are within a coverage area associated with that second unit; generating respective digital samples indicative of at least a portion of the wireless spectrum of the respective analog wireless signal received at that second unit; and communicating the respective digital samples generated by that second unit to the first unit using at least one communication medium; and at the first unit, digitally summing corresponding digital samples derived from the digital samples received from the plurality of second units to produce summed digital samples. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
-
-
43. A system for digital transport of a wireless spectrum, the system comprising:
-
a first unit; and a plurality of second units communicatively coupled to the first unit using at least one wired communication link, wherein each of the plurality of second units is remotely located from the first unit; wherein each of the plurality of second units is configured to receive a respective analog wireless signal comprising the wireless spectrum; wherein each of the plurality of second units is configured to generate respective digital samples indicative of at least a portion of the wireless spectrum of the respective analog wireless signal received at that second unit; wherein each of the plurality of second units is configured to communicate the respective digital samples generated by that second unit to the first unit using the at least one wired communication link; wherein the first unit is configured to digitally sum corresponding digital samples derived from the digital samples received from the plurality of second units to produce summed digital samples; and wherein the system is configured so that an input used for wireless protocol processing is derived from the resulting summed digital samples. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50)
-
-
51. A first unit for digital transport of a wireless spectrum, the first unit comprising:
-
at least one interface to communicatively couple the first unit to a plurality of second units using at least one wired communication link, wherein each of the plurality of second units is remotely located from the first unit and each of the plurality of second units is configured to receive a respective analog wireless signal comprising the wireless spectrum and wherein each of the plurality of second units is configured to generate respective digital samples indicative of at least a portion of the wireless spectrum of the respective analog wireless signal received at that second unit, wherein the at least one interface is configured to receive the digital samples from the plurality of second units at the first unit; a digital summer to digitally sum corresponding digital samples derived from the digital samples received from the plurality of second units to produce summed digital samples; and wherein the first unit is configured so that an input used for wireless protocol processing is derived from the resulting summed digital samples. - View Dependent Claims (52, 53, 54, 55, 56, 57)
-
Specification