Wideband bus for wireless base station

• US 5,894,474 A
• Filed: 12/20/1997
• Issued: 04/13/1999
• Est. Priority Date: 03/22/1996
• Status: Expired due to Term

• Current Assignee: Tellabs Operations Incorporated (Infinera Corp.)
• Original Assignee: Tellabs Wireless, Inc.
• Inventors: Wolf, Michael A., Carrick, John C., Snyder, Robert E., Maison, Thierry, Ralston, William T., Haberkorn, Ronald A.
• Primary Examiner(s): Pham, Chi H.
• Assistant Examiner(s): LUTHER, WILLIAM A
• Application Number:
  US08/982,387
• Time in Patent Office: 479 Days
• Field of Search: 370/310, 370/328, 370/336, 370/337, 370/338, 370/339, 370/340, 370/347, 370/362, 370/364, 370/423, 370/438, 370/442, 370/445, 455/422, 455/507, 455/517, 395/281, 395/282, 395/306
• US Class Current: 370/347
• CPC Class Codes: H04L 12/407 with decentralised control
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A wideband band bus in a base station of a wireless communication system includes consecutively interconnected slots and may be automatically configured into one or more sections that perform application specific cell processing operations, without requiring hardware or software changes to the base station. A section of the wideband bus includes a group of the consecutively connected slots containing digital signal processing modules which implement a cell processing application. The modules included in the slots of a section and the interconnections among the slots provide for diversity reception, expandable cell capacity and cell operations in accordance with wireless communication protocol standards.

Claims

1. A wideband bus in a base station of a wireless communication system, said wideband bus comprising:

a plurality of identical consecutively interconnected slots, wherein each of said slots is designed to receive a digital signal processing and data transfer module, and wherein each of said slots includes receiving and transmitting ports for receiving and transmitting communication data from and to adjacent slots, respectively, and sense ports for detecting sense data from adjacent slots; and

,

a plurality of data lines interconnecting the receiving, transmitting and sense ports of one slot to the transmitting, receiving and sense ports of an adjacent slot, respectively,

wherein the interconnections among the slots provide for grouping consecutive slots into a section,

wherein said section comprises a plurality of the consecutive slots, and wherein the slots of said section include digital signal processing modules for performing application specific cell processing operations.

2. The wideband bus of claim 1, wherein the section comprises a first slot containing a first module for converting RF signals detected at a first antenna of an RF interface to received communication data, a second slot containing a second module for converting RF signals detected at a second antenna of an RF interface to received communication data and at least one slot containing a module for filtering the communication data according to frequency of RF transmission for a communication link established with the base station.

4. The wideband bus of claim 1, wherein said respective ports of the slots of the wideband bus are interconnected to adjacent slot ports by a plurality of data lines, and

wherein a first section in the wideband comprises a first slot containing a first module for converting RF signals detected at a first antenna of the RF interface to the digitized received communication data, a second slot containing a second module for converting RF signals detected at a second antenna of the RF interface to the digitized received communication data and at least one slot containing a module for filtering the digitized received communication data according to the frequency of the detected RF signals.

5. The wideband bus of claim 1, wherein a module generates a clock signal for routing the received and transmission communication data in the section, and wherein a processor in a module of the section determines whether the internally generated clock signal or an external clock signal is to be utilized for routing the communication data within the section.

6. The wideband bus of claim 1, wherein a module in the section selects the received communication data corresponding to the RF signals detected at an antenna of the RF interface having a higher detected RF power level.

7. The wideband bus of claim 4, wherein at least one slot containing the filtering module further performs the operation of summing the digitized transmission communication data supplied from the data bus with the digitized transmission communication data supplied at the transmitting port.

3. A base station of a wireless communication system, said base station comprising:

a general purpose telecommunication bus, said telecommunication bus including a control bus, a data bus bus and a wideband bus;

a radio frequency (RF) interface for receiving and transmitting RF signals; and

,

a mobile switching center for routing digitized received communication data to a public switching network and for routing digitized transmission communication data to a mobile station,

wherein said wideband bus comprises a plurality of substantially identical consecutively interconnected slots wherein said data bus exchanges the received and transmission communication data with the wideband bus,

wherein said control bus routes control signals to the data bus and the wideband bus, said control signals being generated at a system controller,

and wherein each of said slots of the wideband bus is designed to receive a digital signal processing and data transfer module and includes a receiving and transmitting port for receiving and transmitting the received and transmission communication data from and to adjacent slots, respectively, and a sense port for detecting sense data supplied from adjacent slots, said ports of one slot being interconnected to respective ports at an adjacent slot,

wherein a wideband data path section is formed in the wideband bus from a plurality of the consecutively connected slots, the slots of said section including digital signal processing modules for performing application specific cell processing operations.

8. A wideband bus in a base station of a wireless communication system, the wideband bus comprising:

consecutively interconnected slots, wherein each of the slots is designed to receive a digital signal processing and data transfer module, and wherein each of the slots includes receiving and transmitting ports for receiving and transmitting communication data from and to adjacent slots, respectively, and sense ports for detecting sense data from adjacent slots; and

,

data lines interconnecting the receiving, transmitting and sense ports of one slot to the transmitting, receiving and sense ports of an adjacent slot, respectively, and

wherein the interconnections among the slots provide for grouping consecutive slots into a section.

9. The wideband bus in a base station of a wireless communication system of claim 8, wherein the wireless communication system includes a second wideband bus, the wideband bus further comprising a repeater module positioned in one of the slots and configured to interconnect the slot with a second slot in the second wideband bus to group slots in the wideband bus and slots in the second wideband bus into a section.