WO2008024713A2 - Appareil portable multimode - Google Patents

Appareil portable multimode Download PDF

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Publication number
WO2008024713A2
WO2008024713A2 PCT/US2007/076317 US2007076317W WO2008024713A2 WO 2008024713 A2 WO2008024713 A2 WO 2008024713A2 US 2007076317 W US2007076317 W US 2007076317W WO 2008024713 A2 WO2008024713 A2 WO 2008024713A2
Authority
WO
WIPO (PCT)
Prior art keywords
media access
transceiver
accordance
access controller
operative
Prior art date
Application number
PCT/US2007/076317
Other languages
English (en)
Other versions
WO2008024713A3 (fr
Inventor
Robert B. Ganton
Paramesh Gopi
Original Assignee
Marvell World Trade Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marvell World Trade Ltd. filed Critical Marvell World Trade Ltd.
Publication of WO2008024713A2 publication Critical patent/WO2008024713A2/fr
Publication of WO2008024713A3 publication Critical patent/WO2008024713A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access

Definitions

  • aspects of the present invention relate generally to handset apparatus for use in communication systems, and more particularly to a multi-mode wireless handheld apparatus incorporating a radio component operative in accordance with a plurality of communication standards.
  • WiMAX Worldwide Interoperability for Microwave Access
  • IEEE 802.16 the Institute of Electrical and Electronics Engineers
  • WiFi Wireless Fidelity
  • VoIP Voice over Internet Protocol
  • Interaction between multiple radio elements in a single device can create interference and other deleterious effects that limit the utility of the device, its useful range, or both; inter-radio interference is especially problematic where individual receivers, transmitters, or both are manufactured independently (e.g., on different chips) and perhaps by different manufacturers. Additionally, current technology generally does not permit implementation of a WiFi transceiver in WiMAX mode, for example, and vice- versa. While these communication standards, or modes, are similar, sufficient differences exist to limit the ability of one transceiver which is dedicated to operate in one particular mode (e.g., WiFi) from operating in the other mode (e.g., WiMAX).
  • WiFi Wireless Fidelity
  • Similarities between the WiFi and WiMAX standards generally include basebands and overall bandwidth requirements, media access control (MAC) elements, channel size and spacing, as well as hardware components and protocol stacks which support various operational characteristics; for example, both modes represent multi-in, multi-out (MIMO) technologies.
  • MAC media access control
  • MIMO multi-in, multi-out
  • Embodiments of the present invention overcome the above-mentioned and various other shortcomings of conventional technology, providing a multi-mode wireless handheld apparatus incorporating a radio element operative in accordance with a plurality of communication standards.
  • a coexistence engine arbitrates resources of the radio element.
  • FIG. 1 is a simplified block diagram illustrating components of one embodiment of a multi-mode wireless handheld apparatus.
  • FIG. 2 is a simplified block diagram illustrating components of another embodiment of a multi-mode wireless handheld apparatus.
  • FIG. 3 is a simplified block diagram illustrating architectural implementation details of one embodiment of a multi-mode wireless handheld apparatus.
  • FIG. 4 is a simplified block diagram illustrating a single media access controller connection to a coexistence engine.
  • FIG. 5 is a simplified flow diagram illustrating general operation of one embodiment of a method of controlling a multi-mode wireless handheld apparatus.
  • FIGS. 1 and 2 are simplified block diagrams illustrating components of embodiments of a multi-mode wireless handheld apparatus.
  • a radio element Ae., radio frequency (RF) component, reference numeral 199
  • RF component 199 may be associated with or integrated into the same chip as the other components.
  • a multi-mode wireless handheld apparatus 100 may generally comprise a data storage component or memory 1 10, one or more computational components or data processors (reference numeral 120), and various media access controller (MAC) and baseband (BB) elements as indicated at reference numerals 170A-170N.
  • Apparatus 100 may engage in wireless communications via RF component 199, under control of MAC/BB elements 170A-170N through a radio interface (I/F) 150, as set forth in detail below.
  • I/F radio interface
  • memory 110 may be embodied in or comprise any number of various hardware elements operative to store data useful for enabling or facilitating wireless communications.
  • Memory 110 may include, for example, volatile or non-volatile data storage components such as random access memory (RAM) elements, read-only memory (ROM) elements, magnetic or optical disk drives, flash memory, or a combination of these and other components generally configured and operative to store digital data.
  • RAM random access memory
  • ROM read-only memory
  • flash memory or a combination of these and other components generally configured and operative to store digital data.
  • Data processing element 120 may be embodied in or comprise one or more microprocessors, microcontrollers, programmable logic controllers (PLCs), field programmable gate array (FPGA), application specific integrated circuits (ASICs), or a combination of these and other hardware elements capable of executing instruction sets having utility in wireless voice or data communications.
  • data processing element 120 may access data stored in memory 110 and execute instruction sets to enable or facilitate wireless communications functionality for apparatus 100.
  • data processing element 120 may control or influence the functionality or operational characteristics of MAC/BB elements 170A-170N, a coexistence engine or logic (reference numeral 180) described below, RF component 199, and various other components of apparatus 100.
  • data processing element 120 may be application specific and may depend, for example, upon desired operational characteristics of apparatus 100, processing specifications associated with various communications protocols, bandwidth or data throughput requirements, cost considerations, or a combination of these and other factors.
  • data processing element 120 may comprise two microprocessors; alternatively, one microprocessor or microcontroller may be dedicated for use in conjunction with a respective MAC/BB element 170A-170N.
  • MAC/BB elements 170A-170N may enable apparatus 100 to communicate in accordance with various wireless communications standards.
  • MAC/BB element 170A may be configured and operative to allow RF component 199 to communicate on a wireless local area network (WLAN) such as a network implementing one or more aspects of the IEEE 802.1 1 standard (Ae., a Wireless Fidelity, or "WiFi" network).
  • WLAN wireless local area network
  • MAC/BB element 170B may be configured and operative to allow RF component 199 to communicate on a network employing one or more aspects of the Worldwide Interoperability for Microwave Access (or "WiMAX”) communication standard (Ae., IEEE 802.16).
  • WiMAX Worldwide Interoperability for Microwave Access
  • any number of other MAC/BB elements 170N may be incorporated into apparatus 100, depending upon, among other factors, a desire or requirement that apparatus 100 be compatible with a particular communication standard or protocol, the computational capabilities of data processing element 120, the overall functionality of RF component 199, hardware or integrated circuit manufacturing techniques, and associated costs.
  • the embodiment illustrated in FIG. 3 includes a MAC and a baseband element that may allow apparatus 100 to communicate via the Bluetooth (TM) standard; additionally, the FIG. 3 architecture may allow apparatus 100 to receive global positioning system (GPS) data.
  • MAC/BB element 170N may be embodied in or comprise a cellular modem for wireless cellular voice and data communications.
  • MAC/BB element 170N may be operative in accordance with any of various communications technologies including, but not limited to: frequency modulation (FM) radio; Global System for Mobile Communications (GSM); Enhanced Data for GSM Evolution (EDGE); General Packet Radio Service (GPRS); Universal Mobile Telecommunications System (UMTS); High- Speed Downlink Packet Access (HSDPA); High Speed Uplink Packet Access (HSUPA); Code Division Multiple Access (CDMA); Wideband CDMA; Evolution Data Optimized (EvDO); and Time Division Multiple Access (TDMA).
  • FM frequency modulation
  • GSM Global System for Mobile Communications
  • EDGE Enhanced Data for GSM Evolution
  • GPRS General Packet Radio Service
  • UMTS Universal Mobile Telecommunications System
  • HSDPA High- Speed Downlink Packet Access
  • HSUPA High Speed Uplink Packet Access
  • CDMA Code Division Multiple Access
  • Wideband CDMA Wideband CDMA
  • EvDO Evolution Data Optimized
  • TDMA Time Division Multiple Access
  • coexistence engine 180 may generally control or otherwise influence operation of the various MAC/BB elements 170A-170N, either independently or in cooperation with data processing element 120; in that regard, coexistence engine 180 may act as an arbitrator with respect to access to RF component 199, i.e., via radio I/F 150. In some embodiments, coexistence engine 180 may take into account requirements, requests, or predictions (or a combination of these) associated with one or more of MAC/BB elements 170A-170N when allocating physical resources and access to RF component 199.
  • coexistence engine 180 may arbitrate in accordance with a predetermined QoS metric and thus determine which of MAC/BB elements 170A or 170B should be allocated immediate access.
  • QoS quality of service
  • Coexistence engine 180 may be implemented in hardware, for example, as a microprocessor, PLC, or other hardware logic component. Alternatively, coexistence engine 180 may be implemented in software as a virtual logic component; in this instance, data processing element 120 may execute instruction sets operative to arbitrate hardware resources as necessary or desired to allow apparatus 100 to communicate via RF component 199 in accordance with a selected one of a plurality of communications standards.
  • RF component 199 may be embodied in or comprise a radio transceiver enabling wireless voice and data communications. As illustrated in FIGS. 1 and 2, RF component 199 may be configured to support two send and two receive (2X2) WiFi chains, as well as one send and two receive (1X2) WiMAX chains. In other embodiments, RF component 199 may also support 2X2 WiMAX communications. Additionally or alternatively, apparatus 100 may include multiple independent transceivers (e.g., each of which may be configured to operate in accordance with a particular communication protocol or standard) to supplement or to replace the illustrated RF component 199.
  • operational characteristics of such independent transceivers, as well as access to the resources of each transceiver by other components of apparatus 100 may be controlled, regulated, or otherwise influenced by coexistence engine 180 substantially as set forth below.
  • coexistence engine 180 substantially as set forth below.
  • apparatus 100 may also comprise or incorporate, among other things, an analog to digital (A/D) converter 130, a digital to analog (D/A) converter 140, radio I/F 150, and one or more phase-locked loops 160.
  • A/D analog to digital
  • D/A digital to analog
  • radio I/F 150 radio I/F
  • phase-locked loops 160 The general operation of these components and their respective utilities in wireless handset applications are well understood.
  • baseband and MAC components that are tightly coupled contribute efficiencies to the overall architecture of apparatus 100 as well as to the performance and quality of voice and data communications. Additionally, since memory 110, RF component 199, radio I/F 150, and other hardware components may be shared among the various MAC/BB elements 170A-170N, overall size of the integrated circuitry incorporated into apparatus 100 may be reduced, e.g., as compared to the overall circuit real estate required if multiple independent radios and memories were employed.
  • FIGS. 3 and 4 illustrate, by way of example, interconnection and interoperability between a coexistence engine 180 and a MAC.
  • FIG. 3 is a simplified block diagram illustrating architectural implementation details of one embodiment of a multi-mode wireless handheld apparatus.
  • FIG. 4 is a simplified block diagram illustrating a single media access controller connection to a coexistence engine.
  • Fig 3. illustrates one strategy for coupling various wireless radio systems to coexistence engine 180.
  • any number of additional MAC/BB systems may be coupled to, or interoperate with, coexistence engine 180 in a manner similar to that depicted in FIG. 3.
  • MAC element 301 , BB radio component 31 1 , and their associated transmitter and receiver support WLAN or WiFi communications.
  • MAC element 302, BB radio component 312, and their associated transmitter and receiver support WiMAX communications
  • MAC element 303, BB radio component 313, and their associated transmitter and receiver support Bluetooth(TM) communications
  • a GPS processor 331 , correlator 332, and receiver 333 enable reception and processing of global positioning information related to the location of apparatus 100 incorporating the hardware components indicated in FIG. 3.
  • each respective MAC element 301-303 may deliver predictive data or other relevant information associated with the state or use of its respective baseband radio component 311-313 to coexistence engine 180; similarly, GPS processor 331 may provide predictive data or other relevant information associated with use of receiver 333.
  • coexistence engine 180 may execute arbitration processing operations to determine efficient or otherwise appropriate allocation of such resources.
  • coexistence engine 180 may implement any number of various arbitration algorithms (e.g., employing priority assignments, QoS metrics, past history, expected future bandwidth requirements or limitations, and the like), either independently or in cooperation with data processing element 120, to allocate access to RF component 199 in accordance with a predetermined or dynamically adjusted rule set.
  • coexistence engine 180 is illustrated in FIG. 3 as coupled directly to MAC elements 301-303 and GPS processor 331 (at an interface 399), coexistence engine 180 may, additionally or alternatively, be coupled indirectly to these or other components, for example, via connection through external RF elements (such as switches) facilitated by appropriate enable signals.
  • the simplified generic architecture illustrated in FIG. 3 is provided for clarity and by way of example only; the present disclosure is not intended to be limited to implementations employing a direct connection or interface 399 between a MAC element and coexistence engine 180.
  • FIG. 4 illustrates a simplified single MAC connection to coexistence engine 180.
  • any number of additional MAC components may be coupled to coexistence engine 180 in a manner similar to that depicted in FIG. 4; connections to additional MAC components are represented by the arrow labeled "Other MAC Predictors" on the left side of FIG. 4.
  • Computation core 189 may execute, enable, or otherwise facilitate the arbitration functionality of coexistence engine 180.
  • core 189 may receive data or information associated with a BB channel indicator 41 1 , as well as predictive transmission data 412 and predictive reception data 413 from the MAC.
  • FIG. 4 illustrates, by way of example, a combinatorial logic implementation running at core 189.
  • BB channel indicator data received from the MAC may be employed as arguments or variables in a mathematical function, and a result (OUT1 ) may be determined; alternatively, OUT1 may simply represent the BB channel.
  • predictive transmission data and predictive reception data may be employed as arguments or variables in a different mathematical function or algorithm, and a different result (OUT2) may be determined; given the logic implemented by core 189 in the FIG. 4 example, OUT2 simply represents the longer of two time durations.
  • OUT1 and OUT2 may be employed as arguments or variables in yet a different mathematical function or algorithm, the result of which (OUT) may be compared to values in a look up table (LUT), for example, to determine an appropriate manner in which to allocate resources.
  • core 189 may output a signal ("BB CTL" in FIG. 4) suitable to provide necessary or desired instructions to control operation of the BB radio and MAC element. For example, if a competing MAC and BB have priority, the output signal BB CTL may limit or otherwise regulate access to radio resources or restrict access to RF component 199 for other components.
  • core 189 may employ a clocked engine which may be better suited to implement logic or to execute simple firmware instruction sets more efficiently.
  • the signal BB CTL may be a specific control signal transmitted to the specific MAC/BB block (such as, for example, 170A in FIGS. 1 and 2, which represents a combination of blocks 301 and 31 1 in FIG. 3) being controlled by coexistence engine 180.
  • the illustrated architecture may be combined with additional similar logical blocks (e.g., each controlling a respective MAC/BB combination) to form a distributed logic block effectively to arbitrate an entire system's radio coexistence.
  • a single core 189 may be implemented to control operation of multiple MAC/BB combinations by addressing a control signal (such as BB CTL) to a particular combination, for instance, or by broadcasting a single signal to every MAC/BB combination in the system.
  • a control signal such as BB CTL
  • FIG. 5 is a simplified flow diagram illustrating general operation of one embodiment of a method of controlling a multi-mode wireless handheld apparatus. In some implementations, the method depicted in FIG. 5 may be executed by the hardware elements described above.
  • a method of controlling a multi-mode wireless handheld apparatus may begin by receiving baseband channel information or data (block 501 ) and predictive data (block 502).
  • predictive data may be associated with expected, anticipated, or predicted requirements of a baseband element coupled to a media access controller.
  • the operations depicted at blocks 501 and 502 may be reversed (Ae., the receiving process at block 502 may precede the receiving process at block 501 ) or executed substantially simultaneously. Moreover, one or both of these operations may be executed iteratively, either with respect to a single MAC/BB element or with respect to multiple MAC/BB elements.
  • the receiving operations depicted at blocks 501 and 502 may be executed with respect to each of a plurality of MAC/BB combinations sequentially; when appropriate data from the last MAC/BB combination in the sequence are received, processing may return to the beginning of the sequence.
  • arbitration processing may be executed as indicated at block 503.
  • a coexistence engine implementing appropriate logic or computer executable instructions may determine which of a plurality of MAC/BB combinations may access a transceiver to engage in voice or data communications.
  • this arbitration processing may be distributed logically (e.g., an independent logical block may be responsible for controlling a respective MAC/BB combination).
  • QoS metrics, priority assignments, and other factors may be taken into consideration.
  • Various arbitration algorithms and resource allocation strategies may be employed.
  • Control signals may be sent to the various MAC/BB combinations as indicated at block 504, and the MAC with priority may be provided with access to the transceiver as indicated at block 505, while other MAC/BB elements may be shut down or instructed to stand-by, for example, and may accordingly be apprised of the status of a queue.
  • the transceiver may operate in accordance with the communications standard dictated by the MAC/BB combination that has current access.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)

Abstract

L'invention concerne un appareil portable multimode qui peut incorporer un élément radio opérationnel conformément à une pluralité de normes de communication. Un engin coexistant peut arbitrer l'accès aux ressources de l'élément radio par des contrôleurs d'accès au support et des composantes de la bande de base.
PCT/US2007/076317 2006-08-22 2007-08-20 Appareil portable multimode WO2008024713A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82319106P 2006-08-22 2006-08-22
US60/823,191 2006-08-22

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WO2008024713A2 true WO2008024713A2 (fr) 2008-02-28
WO2008024713A3 WO2008024713A3 (fr) 2008-05-22

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011001210A1 (fr) * 2009-06-29 2011-01-06 Nokia Corporation Affectation de ressources
US8903314B2 (en) 2009-10-29 2014-12-02 Qualcomm Incorporated Bluetooth introduction sequence that replaces frequencies unusable due to other wireless technology co-resident on a bluetooth-capable device
US9130656B2 (en) 2010-10-13 2015-09-08 Qualcomm Incorporated Multi-radio coexistence
US9135197B2 (en) 2009-07-29 2015-09-15 Qualcomm Incorporated Asynchronous interface for multi-radio coexistence manager
US9148889B2 (en) 2009-06-01 2015-09-29 Qualcomm Incorporated Control of multiple radios using a database of interference-related information
US9161232B2 (en) 2009-06-29 2015-10-13 Qualcomm Incorporated Decentralized coexistence manager for controlling operation of multiple radios
US9185718B2 (en) 2009-06-29 2015-11-10 Qualcomm Incorporated Centralized coexistence manager for controlling operation of multiple radios
US9185719B2 (en) 2009-08-18 2015-11-10 Qualcomm Incorporated Method and apparatus for mapping applications to radios in a wireless communication device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1119137A1 (fr) * 2000-01-20 2001-07-25 Lucent Technologies Inc. Interopérabilité entre Bluetooth et IEEE 802.11
US20050020299A1 (en) * 2003-06-23 2005-01-27 Quorum Systems, Inc. Time interleaved multiple standard single radio system apparatus and method
US20050147071A1 (en) * 2004-01-05 2005-07-07 Jeyhan Karaoguz Multi-mode WLAN/PAN MAC
EP1583295A2 (fr) * 2004-03-26 2005-10-05 Broadcom Corporation Coexistence de WLAN/WPAN avec une prioritisation dynamique dans des dispositifs sans fil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1119137A1 (fr) * 2000-01-20 2001-07-25 Lucent Technologies Inc. Interopérabilité entre Bluetooth et IEEE 802.11
US20050020299A1 (en) * 2003-06-23 2005-01-27 Quorum Systems, Inc. Time interleaved multiple standard single radio system apparatus and method
US20050147071A1 (en) * 2004-01-05 2005-07-07 Jeyhan Karaoguz Multi-mode WLAN/PAN MAC
EP1583295A2 (fr) * 2004-03-26 2005-10-05 Broadcom Corporation Coexistence de WLAN/WPAN avec une prioritisation dynamique dans des dispositifs sans fil

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9148889B2 (en) 2009-06-01 2015-09-29 Qualcomm Incorporated Control of multiple radios using a database of interference-related information
US9155103B2 (en) 2009-06-01 2015-10-06 Qualcomm Incorporated Coexistence manager for controlling operation of multiple radios
WO2011001210A1 (fr) * 2009-06-29 2011-01-06 Nokia Corporation Affectation de ressources
US9161232B2 (en) 2009-06-29 2015-10-13 Qualcomm Incorporated Decentralized coexistence manager for controlling operation of multiple radios
US9185718B2 (en) 2009-06-29 2015-11-10 Qualcomm Incorporated Centralized coexistence manager for controlling operation of multiple radios
US9135197B2 (en) 2009-07-29 2015-09-15 Qualcomm Incorporated Asynchronous interface for multi-radio coexistence manager
US9185719B2 (en) 2009-08-18 2015-11-10 Qualcomm Incorporated Method and apparatus for mapping applications to radios in a wireless communication device
US8903314B2 (en) 2009-10-29 2014-12-02 Qualcomm Incorporated Bluetooth introduction sequence that replaces frequencies unusable due to other wireless technology co-resident on a bluetooth-capable device
US9130656B2 (en) 2010-10-13 2015-09-08 Qualcomm Incorporated Multi-radio coexistence

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