Self-contained masthead units for cellular communication networks

• US 6,912,409 B2
• Filed: 06/08/2001
• Issued: 06/28/2005
• Est. Priority Date: 10/21/1997
• Status: Expired due to Term

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: Interwave Communications International SA (Alvarion Limited)
• Inventors: Waylett, Nicholas S. A.
• Primary Examiner(s): Maung, Nay
• Assistant Examiner(s): Perez, Angelica
• Application Number:
  US09/877,303
• Publication Number:
  US 20010044323A1
• Time in Patent Office: 1,481 Days
• Field of Search: 455/562.1, 455/561, 455/444, 455/453, 455/446, 343/874
• US Class Current: 455/562.1
• CPC Class Codes: H01Q 1/1207 for fastening a rigid aerial element
• CPC Class Codes: H01Q 1/1242 Rigid masts specially adapted for supporting an aerial
• CPC Class Codes: H01Q 1/246 specially adapted for base stations
• CPC Class Codes: H01Q 23/00 Antennas with active circuits or circuit elements integrated within them or attached to them
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 88/08 Access point devices
• CPC Class Codes: H04W 88/12 Access point controller devices
• CPC Class Codes: H04W 88/14 Backbone network devices

Abstract

An improved modular masthead for use in cellular communications networks is described. The masthead unit includes a power amplifier, a duplexer and a local power supply that supplies the power amplifier. The power amplifier is arranged to amplify outgoing communication signals received from a base station. In a preferred embodiment, the masthead also includes a low noise amplifier for amplifying incoming communication signals and passing the amplified incoming communication signals to an associated base station. With this arrangement, the masthead forms a modular unit that is distinct from the base station such that the modular masthead may be replaced independently of the base station. With this arrangement the range of a cell within a cellular network may be changed by simply swapping an existing masthead unit with a second masthead unit having a different power supply thereon and making software changes in the system. Thus, the range of the cell within the cellular network may be changed without changing any hardware in the base station.

Claims

1. A method of changing the range of a cell within a cellular network having a mobile switching center, a base station controller that communicates with the mobile switching center, a base station that communicates with the base station controller, a first mast head unit that communicates with the base station via distinct transmission and receiver lines, and an antenna that communicates with the first mast head unit via an antenna line, the method comprising:

swapping a second mast head unit for the first mast head unit, the second mast head unit having an associated cell range that is different from a cell range associated with the first mast head unit; and

changing at least one radio range parameter in an operations registry associated with the mobile switching center,

whereby the range of the cell within the cellular network may be changed without changing any hardware in the base station.

2. A method as recited in claim 1 wherein the cellular network operates in accordance with a GSM standard, the method further comprising:

remotely reconfiguring the base station and the base station controller in response to the change in the radio range parameter.

3. A method of upgrading a cell within a cellular network having a mobile switching center, a base station controller that communicates with the mobile switching center, a first base station that communicates with the base station controller, a mast head unit that communicates with the first base station via distinct transmission and receiver lines, and an antenna that communicates with the mast head unit via an antenna line, the method comprising:

swapping a second base station unit for the first base station without changing any hardware at the mast head unit or base station controller, whereby in the second base station communicates with the antenna through the mast head unit in the upgraded network.