Dynamic reallocation of bandwidth and modulation protocols

• US 7,554,946 B2
• Filed: 01/25/2008
• Issued: 06/30/2009
• Est. Priority Date: 03/31/2005
• Status: Expired

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: ADC Telecommunications Incorporated (TE Connectivity Limited)
• Inventors: Bauman, Donald R., Wala, Philip M., Mitchell, William J., Hermel, Michael J., Cannon, Jeffrey J., Weaver, Douglas D., Conyers, David J., Toms, Jerry Edward, Fischer, Larry G., Sonbarse, Santosh K.
• Primary Examiner(s): Phan; Huy Q
• Application Number:
  US12/020,053
• Publication Number:
  US 20080137575A1
• Time in Patent Office: 522 Days
• Field of Search: 370/329, 370/341, 370/252, 370/310, 370/324, 370/332, 370/333, 455/452.2, 455/452.1, 455/450, 455/552.1, 455/557, 455/118, 455/313
• US Class Current: 370/329
• CPC Class Codes: H04L 47/15 in relation to multipoint traffic arrangements for broadcast or multicast in data networks H04L12/18
• CPC Class Codes: H04L 47/21 using leaky-bucket
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 47/2433 Allocation of priorities to traffic types
• CPC Class Codes: H04L 47/283 in response to processing delays, e.g. caused by jitter or round trip time [RTT]
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/762 triggered by the network
• CPC Class Codes: H04L 47/824 Applicable to portable or mobile terminals

Abstract

Systems for dynamic reallocation of bandwidth and modulation protocols is provided. In one embodiment, a radio head interface module comprises: a transmit buffer adapted to receive a data stream from a signal processing module and store the data stream as a page of data samples having a page header; a transmit engine; a digital upconverter, the transmit engine adapted to transfer the page of data samples from the transmit buffer to the digital upconverter; a configuration management unit adapted to receive reconfiguration information from the signal processing module, the reconfiguration information including at least one of air interface protocol parameters and bandwidth allocation information; and a memory adapted with digital upconverter parameters. The configuration management unit is accesses the memory to lookup associated digital upconverter parameters based on the reconfiguration information. The configuration management unit is further adapted to output the associated digital upconverter parameters to the digital up converter.

Claims

1. A communications system, comprising:

a base station, including;

one or more radio head interface modules; and

a signal processing module, the one or more radio head interface modules adapted to communicate with the signal processing module;

wherein the signal processing module performs modulation and demodulation of voice and data streams using one or more air interface protocols; and

a radio head unit coupled to the one or more radio head interface modules over one or more transport mediums;

wherein the radio head unit communicates with one or more subscriber units using the one or more air interface protocols;

wherein the one or more radio head interface modules receives reconfiguration information from the signal processing module, the reconfiguration information including at least one of air interface protocol parameters and bandwidth allocation information;

wherein the one or more radio head interface modules reconfigures itself for one or more communications channels, based on the reconfiguration information;

wherein the one or more radio head interface modules further comprises;

a transmit buffer, the transmit buffer adapted to receive a data stream from the signal processing module and store the data stream as a page of data sample;

a transmit engine;

a digital upconverter, the transmit engine adapted to transfer the page of data samples from the transmit buffer to the digital upconverter;

a configuration management unit adapted to receive air interface protocol configuration information from the signal processing module;

a memory adapted with digital upconverter parameters;

wherein the configuration management unit is further adapted to access the memory to lookup digital upconverter parameters based on the reconfiguration information; and

wherein the configuration management unit is further adapted to output the digital upconverter parameters to the digital up converter.

2. The system of claim 1, wherein the base station further comprises:

one or more interface devices, wherein the one or more radio head interface modules communicate with the signal processing module over the one or more interface devices.

3. The system of claim 2, wherein the one or more interface devices includes at least one of a PCI-X interface, an ATCA interface, a PCI Express interface, a Gigabit Ethernet interface, a SCSI interface, a Rocket I/O interface, a UDP/IP link interface, a TCP/IP link interface, a Serial ATA interface, a Card bus for PCMIA card interface, a high speed serial interface and a high speed parallel interface.

4. The system of claim 1, wherein one or more air interface protocols include at least one of Global System for Mobile communications (GSM), Advanced Mobile Phone System (AMPS), code division multiple access (CDMA), Wide-band CDMA, time division multiple access (TDMA), Cellular Digital Packet Data (CDPD), Enhanced Data rates for GSM Evolution (EDGE), General Packet Radio Service (GPRS), Integrated Digital Enhanced Network (iDEN), and Orthogonal Frequency Division Multiplexing (OFDM).

5. The system of claim 1, wherein the signal processing module communicates one or more pages of data samples with the one or more radio head interface modules, each of the one or more pages of data samples having a page header;

and

wherein reconfiguration information is contained in the page header.

6. The system of claim 1, wherein air interface protocol parameters include at least one of a protocol reconfiguration indicator, modulation protocol assignment parameters, and a timing trigger.

7. The system of claim 6, wherein the timing trigger is one of a designated time and a designated data sample.

8. The system of claim 7, wherein the designated time correlates to a time count internal to the one or more radio head interface modules.

9. The system of claim 1, wherein the signal bandwidth allocation information comprises a timing trigger and signal bandwidth allocation parameters for one or more communication channels.

10. The system of claim 9, wherein the timing trigger is one of a designated time and a designated data sample.

11. The system of claim 10, wherein the designated time correlates to a time count internal to the one or more radio head interface modules.

12. The system of claim 1, wherein the configuration management unit is further adapted to access the memory to lookup the associated digital upconverter parameters based on the reconfiguration information;

and

wherein the configuration management unit is further adapted to output the associated parameters to the digital up converter.

13. The system of claim 1, wherein the one or more radio head interface modules further comprises:

a receive buffer;

a receive engine; and

a digital downconverter;

the transmit engine adapted to transfer a data stream from the digital downconverter to the receive buffer, the receive buffer adapted to store the data stream as a page of data samples, the receive buffer further adapted to output the page of data samples to the signal processing module;

the memory further adapted with digital downconverter parameters;

wherein the configuration management unit is further adapted to access the memory to lookup the digital downconverter parameters based on the reconfiguration information; and

wherein the configuration management unit is further adapted to output the digital downconverter parameters to the digital downconverter.

14. The system of claim 13, wherein the configuration management unit is further adapted to access the memory to lookup the associated digital downconverter parameters based on the reconfiguration information;

and

wherein the configuration management unit is further adapted to output the associated parameters to the digital downconverter.

15. The system of claim 1, wherein the transport mediums are one or more of optical fiber, millimeter wave, coaxial cable, and Free Space Optics (FSO).

16. A radio head interface module, the module comprising:

a transmit buffer, the transmit buffer adapted to receive a data stream from a signal processing module and store the data stream as a page of data samples having a page header;

a transmit engine;

a digital upconverter, the transmit engine adapted to transfer the page of data samples from the transmit buffer to the digital upconverter;

a configuration management unit adapted to receive reconfiguration information from the signal processing module, the reconfiguration information including at least one of air interface protocol parameters and bandwidth allocation information; and

a memory adapted with digital upconverter parameters;

wherein the configuration management unit is further adapted to access the memory to lookup associated digital upconverter parameters based on the reconfiguration information;

wherein the configuration management unit is further adapted to output the associated digital upconverter parameters to the digital up converter.

17. The one or more radio head interface modules of claim 16, the module further comprising:

a receive buffer;

a receive engine; and

a digital downconverter;

the receive engine adapted to transfer a data stream from the digital downconverter to the receive buffer, the receive buffer adapted to store the data stream as a page of data samples, the receive buffer further adapted to output the page of data samples to the signal processing module;

the memory further adapted with digital downconverter parameters;

wherein the configuration management unit is further adapted to access the memory to lookup the associated digital downconverter parameters based on the reconfiguration information; and

wherein the configuration management unit is further adapted to output the associated digital downconverter parameters to the digital downconverter.