SIGNAL COMBINER
0 Assignments
0 Petitions
Accused Products
Abstract
At present a number of frequency bands in the region of 450, 950, 900, 1700, 1800, 1900 and 2100 MHz are utilised for cellular and mobile communications, additional bands are under consideration for future expansion of such wireless communication systems. Recently, placing UMTS signals into existing GSM spectrum has received increasing levels of interest. The present invention is directed to systems and methods of combining GSM and UTMS signals in a shared methodology that offers good isolation. A number of different combiner structures are disclosed, the various combiner types each utilise differing transmitter ports topologies to effect the placement of UTMS signals within the existing GSM spectrum and vice versa.
27 Citations
58 Claims
-
1-29. -29. (canceled)
-
30. An apparatus for combining communication signals said apparatus comprising:
-
a first transmission section; a first receiver section including at first filter module coupled to a first splitter whereby said first splitter provides a first and a second receiver path; a second transmitter section; a second receiver section including second filter module coupled to a second splitter whereby said second splitter provides a third and a fourth receiver path; and wherein the first, second, third and fourth receiver paths each include at least one filter element. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39)
-
-
40. A communications node for a communications network, said communications node comprising:
-
a first base station; a first antenna element associated with said first base station; a first transmission section coupled to the first base station and said first antenna element; a first receiver section coupled to said first base station and said first antenna element, said first receiver section including a first filter module coupled to a first splitter whereby said first splitter provides a first and a second receiver path; a second base station; a second antenna element associated with said second base station; a second transmitter section coupled to the second base station and said second antenna element; a second receiver section, coupled to said second antenna element, said second receiver section including second filter module coupled to a second splitter whereby said second splitter provides a third and a fourth receiver path; and wherein the first, second, third and fourth receiver paths each include at least one filter element. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
-
-
58. An antenna system for a communications network said antenna system comprising:
-
a first transmission section coupled to a first antenna element; a first receiver section coupled to said first antenna element, said first receiver section including a first filter module coupled to a first splitter whereby said first splitter provides a first and a second receiver path; a second transmitter section coupled to a second antenna element; a second receiver section, coupled to said second antenna element, said second receiver section including second filter module coupled to a second splitter whereby said second splitter provides a third and a fourth receiver path; said second transmission and said second receiver sections are coupled to a second antenna element; and wherein the first, second, third and fourth receiver paths each include at least one filter element.
-
Specification