Open baseband processing architecture for next generation wireless and mobile communication terminal design

• US 7,283,838 B2
• Filed: 04/22/2005
• Issued: 10/16/2007
• Est. Priority Date: 04/22/2005
• Status: Expired due to Fees

• Current Assignee: Palo Alto Research, Inc.
• Original Assignee: Wei Lu
• Inventors: Lu, Wei
• Primary Examiner(s): LE, DANH C
• Application Number:
  US10/907,951
• Publication Number:
  US 20050159123A1
• Time in Patent Office: 907 Days
• Field of Search: 455/550.1, 455/418, 455/419, 370/469, 370/474, 709/324, 713/320
• US Class Current: 455/550.1
• CPC Class Codes: G06F 15/8015 One dimensional arrays, e.g. rings, linear arrays, buses
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 8/245 from a network towards a terminal
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An open baseband processing architecture for next generation wireless and mobile communication terminal system supporting full integration and convergence of existing and future wireless standards with open processing engines to optimize the terminal system performance and network resource management.

Claims

1. An open baseband processing architecture for next generation wireless and mobile communication terminal design said system comprising:

a. Multi-Tasked SIMD (single-instruction stream, multiple-data stream) Core including a general-purpose processor and digital signal processor, as well as several processing elements, to deal with common air interfaces of the most popular standards,

b. Open Computing Machines (OCM) Accelerator handling computationally intensive repetitive operations of specific communication-oriented algorithms,

c. Open Kernels Accelerator handling special functional protocols processing, algorithms processing, operating systems processing and application-oriented cores processing, etc,

d. Baseband Management system (BBM) to administrate and manage the processing resources of the system,

e. Open Interface Parameters (OIP) Library containing the mappings of the common air interfaces'"'"' standards and the baseband processing parameters,

f. Physical Layer and Medium Access Control (PHY/MAC) Control module,

g. Open RF (Radio Frequency) Interface and Module supporting different RF transceivers working in different frequency bands,

h. Bus Bridge defining the I/O (Input/Output) bandwidth for the Multi-Layer System Bus, and control the access to/from the bus.

2. A system as recited in claim 1 wherein said OCM Accelerator comprising:

a) Processing Elements (PEs) handling independent or dependent complex algorithms processing,

b) Open Data RAM storing raw and processed data,

c) Configuration RAM managing the “

read/write”

control to the said PEs, and scheduling the processing tasks of the specific communication algorithms,

d) Bus Interface and Bus Bridge controlling the access to/from the said multi-layer system bus.

3. A system as recited in claim 1 wherein said Open Kernels Accelerator comprising:

a) Configurable Open Kernel processing specific protocols and algorithms based on the said different Open Interface Parameters (OIP),

b) Open Flexible Interconnect and Management subsystem managing the processing resource of the said Open Kernels.

4. A system as recited in claim 1 wherein said OIP Library is updated frequently in reflecting any new defined radio transmission technology (RTT) which generates related open interface parameters to reconfigure specific baseband processing algorithms.

5. A method as recited in claim 1 wherein said PHY/MAC Control comprising:

a) Wireless transmission convergence controls including adaptive modulation, adaptive channel coding, equalization, space-time coding, antenna control,

b) Transmission channels control and access control,

c) Radio resource management and dynamic channels allocation.

6. A system as recited in claim 1 wherein said Open RF module supporting shared spectrum allocation and being optimized for RF direct conversion and low intermediate frequency.

7. A system as recited in claim 1 further comprising a configuration facility to define new air interfaces for the said open terminal and connect to other open terminal based on ad-hoc networking topology.

8. A system as recited in claim 1 further comprising a configuration facility to define separate transmission technologies for downlink and uplink paths of the said open terminal, including OFDM (orthogonal frequency division multiplex) for downlink transmission and CDMA (code division multiple access) for uplink transmission.

9. A method of the Baseband Management system utilizing the processing resources of the terminal device, said method comprising:

a) Managing the whole system baseband processing modules and minimize the baseband processing power consumption,

b) Optimizing the baseband processing tree structure defined by the open wireless architecture (OWA),

c) Scheduling the processing tasks based on the open interface parameters and requirements,

d) Turning on/off the processing modules to optimize the system performance.

10. A method as recited in claim 9 comprising turning off the said OCM Accelerators and/or said Open Kernels Accelerators if the said terminal system only working statically in the very popular wireless standard or the simply converged wireless standards in order to save system power.

11. A method as recited in claim 9 wherein said processing tree comprising:

a) processing root utilized by the system main processor, handling general system operations and maintenances,

b) processing trunk utilized by said general-purpose processors and DSPs or said SIMD cores, handling the main flow of the baseband algorithms and protocols, and controlling the accelerators,

c) processing branches utilized by said OCM Accelerators and said Open Kernels Accelerators, handling the complex communication-oriented algorithms and protocols.

d) processing leafs utilized by said Open Kernels Accelerators or said general-purpose processors and DSPs of the said SIMD Cores, handling general processing of Open Services Architecture (OSA).

12. A method as recited in claim 11 wherein said SIMD Cores capable of handling all the baseband processing tasks if the processing tree is small enough (single standard or simple converged standards).

13. A system as recited in claim 11 wherein said Open Service Architecture comprising:

a) Open Application Program Interface (API) supporting various user-defined applications,

b) Open Service Support Platform supporting Quality-of-Service, Session Control, Mobility Management, Security, Media Conversion and User defined services,

c) Open Mobile Operating Systems supporting flexible services of different wireless platforms,

d) Open Network Control Platform supporting “

IP over everything”

strategy and services convergence upon the open All-IP transport networks.

14. A method as recited in claim 13 comprising capability for the said open terminal to simultaneously or selectively access to various services of different wireless networks in the user'"'"'s service geographic region.

15. A method as recited in claim 9 comprising allocating some baseband modules to be Software Defined Modules (SDM) stored in the internal system memory, external memory card or transferred to/from the Internet.

16. A system as recited in claim 15 wherein said software defined module can be processed in the external processors or DSPs, and the processed data be reloaded into the system.

17. A method as recited in claim 9 comprising capabilities of removing or adding independent open processing modules including said processing elements, said accelerators and said open kernels to meet the different system requirements of the said terminal product development.

18. An open baseband software architecture for future mobile terminal said system comprising:

a) Open baseband software management module responsible for overall management of the terminal software subsystem,

b) Transceiver baseband modules handling the incumbent and target baseband transceiver operations,

c) Said Open Interface Parameters supporting various wireless air-interfaces,

d) Said Software Defined Modules utilizing the portable processing and data modules supporting open wireless standards and optimizing system performance,

e) Open Terminal Management module providing the definition of the different terminals with parameterized interfaces to the said transceiver baseband modules, and the configuration of the terminals supporting various air-interfaces,

f) Open Switch/Scheduler Matrix controlling and scheduling the said transceiver baseband modeuls in different working modes (active, shadow and user-defined).

19. A system as recited in claim 18 wherein said open baseband software management module comprising utilizing:

a) negotiating reconfiguration, creating active and shadow transceiver modules, and controlling the runtime behavior of each module and its element,

b) controlling the said open RF module through appropriate signaling to support flexible space-time transmission technology and shared spectrum allocation,

c) scheduling and managing the said software defined modules for support of different air-interfaces and optimization of system performance,

d) managing the said open interface parameters for mapping between the wireless air interfaces and the open parameters of said terminal system.

20. A system as recited in claim 18 wherein said transceiver baseband modules can be dynamically allocated and configured based on the system requirements where users can increase or decrease the module number to maximize the system performance and minimize the power consumption.