US20050237956A1 - Methods and devices for expanding the range of a network - Google Patents

Methods and devices for expanding the range of a network Download PDF

Info

Publication number
US20050237956A1
US20050237956A1 US11/043,646 US4364605A US2005237956A1 US 20050237956 A1 US20050237956 A1 US 20050237956A1 US 4364605 A US4364605 A US 4364605A US 2005237956 A1 US2005237956 A1 US 2005237956A1
Authority
US
United States
Prior art keywords
device
information
network
method
external device
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US11/043,646
Inventor
Yefim Kuperschmidt
Ran Hay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wisair Ltd
Original Assignee
Wisair 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
Priority to US53543604P priority Critical
Priority to US53562104P priority
Priority to PCT/IL2005/000021 priority patent/WO2005065035A2/en
Application filed by Wisair Ltd filed Critical Wisair Ltd
Priority to US11/043,646 priority patent/US20050237956A1/en
Assigned to WISAIR LTD. reassignment WISAIR LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAY, RAN, KUPERSCHMIDT, YEFIM
Publication of US20050237956A1 publication Critical patent/US20050237956A1/en
Application status is Abandoned legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041Arrangements at the transmitter end
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/16Multipoint routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic regulation in packet switching networks
    • H04L47/10Flow control or congestion control
    • H04L47/14Flow control or congestion control in wireless networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H04W28/065Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource
    • H04W72/0446Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource the resource being a slot, sub-slot or frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/12Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel
    • H04W72/1205Schedule definition, set-up or creation
    • H04W72/1242Schedule definition, set-up or creation based on precedence or priority of the traffic information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/12Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel
    • H04W72/1263Schedule usage, i.e. actual mapping of traffic onto schedule; Multiplexing of flows into one or several streams; Mapping aspects; Scheduled allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/7163Spread spectrum techniques using impulse radio
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70702Intercell-related aspects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/10Flow control between communication endpoints
    • H04W28/14Flow control between communication endpoints using intermediate storage
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]

Abstract

A method for expanding a range of an ultra wide band wireless network, the method includes: (i) providing a first network and an external device, the first network includes multiple devices that receive ultra wide band wireless transmissions from each other, the external device is capable of receiving a transmission from a first device of the first network but not capable of receiving a transmission from a second device of the first network; and (ii) allowing the first device to relay transmissions between the external device and the second device. An ultra wide band device that includes: (i) a receiver, adapted to receive transmissions from members of a first network and from an external device not capable of receiving transmissions from a second device of the first network, and (ii) a transmitter, adapted to transmit information to members of the first network and to the external device; wherein the device is adapted to relay transmission from the second device of the first network to the external device.

Description

    RELATED APPLICATIONS
  • The present patent application is a continuation application of International Application No. PCT/IL05/000021 filed Jan. 6, 2005, which claims priority benefit from U.S. Provisional Application No. 60/535,436 filed Jan. 8, 2004 and U.S. Provisional Application No. 60/535,621 filed Jan. 8, 2004, the contents of which are incorporated herein by reference.
  • This application is related to the following applications:
      • 1. METHOD AND DEVICES FOR MULTICASTING INFORMATION OVER A NETWORK THAT APPLIED A DISTRIBUTED MEDIA ACCESS CONTROL SCHEME, application Ser. No. ______, filed Jan. 25, 2005.
      • 2. METHOD AND SYSTEM FOR OPERATING MULTIPLE DEPENDENT NETWORKS, application Ser. No. ______, filed Jan. 25, 2005.
      • 3. A DEVICE AND METHOD FOR MAPPING INFORMATION STREAMS TO MAC LAYER QUEUES, application Ser. No. ______, filed Jan. 25, 2005.
      • 4. ULTRA WIDE BAND WIRELESS MEDIUM ACCESS CONTROL METHOD AND A DEVICE FOR APPLYING AN ULTRA WIDE BAND WIRELESS MEDIUM ACCESS CONTROL SCHEME, application Ser. No. ______, filed Jan. 25, 2005.
      • 5. METHOD AND DEVICE FOR TRANSMISSION AND RECEPTION OVER A DISTRIBUTED MEDIA ACCESS CONTROL NETWORK, application Ser. No. ______, filed Jan. 25, 2005.
    FIELD OF THE INVENTION
  • The invention relates to networks and especially to methods and devices for expanding the range of a network.
  • BACKGROUND OF THE INVENTION
  • Recent developments in telecommunication and semiconductor technologies facilitate the transfer of growing amounts of information over wireless networks.
  • Short-range ultra wide band wireless networks are being developed in order to allow wireless transmission of vast amounts of information between various devices.
  • Some of short-range ultra wide band wireless networks are characterized by a distributed architecture in which devices exchange information without being controlled by a central host or a base station.
  • FIG. 1 is a schematic illustration of two ultra wide band wireless networks (also referred to as personal access networks) 10 and 20, each including multiple devices that wirelessly communicate with each other. First network 10 includes first till third devices A-C 11-13 and the second network 20 includes forth till sixth devices D-F 24-26.
  • Each of the ultra wide band wireless networks uses time division multiple access (TDMA) techniques in order to allow its devices to share a single physical channel.
  • FIG. 2 illustrates a typical TDMA frame 30. TDMA frame 30 includes multiple time-slots, such as beacon slots 14 and media access slots. The media access slots include distributed reservation protocol (DRP) slots 36 and prioritized contention access (PCA) slots 38. PCA slots are also referred to as PCA periods. DRP slots are also referred to as DRP periods.
  • The beacon slots are used to synchronize devices to the TDMA frame 30. A typical beacon frame includes information that identifies the transmitting device. It also may include timing information representative of the start time of the TDMA frame 30.
  • The DRP slots 36 are coordinated between devices that belong to the same network and allow devices to reserve these slots in advance. During the PCA slots 38 devices that belong to the network compete for access based upon their transmission priority. It is noted that the allocation of media access time slots is dynamic and can change from one TDMA frame to another.
  • FIG. 3 illustrates a TDMA frame 30 of first network 10 as well as a TDMA frame 40 of second network 20. TDMA frame 40 includes multiple time-slots, such as beacon slots 44, DRP slots 46 and PCA slots 48. The TDMA frames do not overlap. It is noted that the TDMA frame includes many fixed size slots. Usually, a number of contiguous slots allocated for DRP (or PCA) ARE regarded as a DRP slot (or PCA slot).
  • The range of ultra wide band wireless networks is limited. This limitation can reduce the utilization of the network. There in a need to expand the range of ultra wide band wireless networks.
  • SUMMARY OF THE INVENTION
  • A method for expanding a range of an ultra wide band wireless network, the method includes: (i) providing a first network and an external device, the first network includes multiple devices that receive ultra wide band wireless transmissions from each other, the external device is capable of receiving a transmission from a first device of the first network but not capable of receiving a transmission from a second device of the first network; and (ii) allowing the first device to relay transmissions between the external device and the second device.
  • An ultra wide band device that includes: (i) a receiver, adapted to receive transmissions from members of a first network and from an external device not capable of receiving transmissions from a second device of the first network, and (ii) a transmitter, adapted to transmit information to members of the first network and to the external device; wherein the device is adapted to relay transmission from the second device of the first network to the external device.
  • A method for expanding a range of first network, the method includes: providing a first network and an external device, the first network includes multiple devices that participate in a first distributed media access control scheme, whereas the external device participates in a second distributed media access control scheme and is capable of receiving a transmission from a first device of the first network but not capable of receiving a transmission from a second device of the first network; and relaying, by the first device, transmissions between the external device and the second device.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The present invention will be understood and appreciated more fully from the following detailed description taken in conjunction with the drawings in which:
  • FIG. 1 is a schematic illustration of two networks (also referred to as personal area networks), each including multiple devices that wirelessly communicate with each other;
  • FIG. 2 illustrates a typical TDMA frame;
  • FIG. 3 illustrates a TDMA frame of a first network as well as a TDMA frame of a second network;
  • FIGS. 4-5 illustrate a device capable of wireless transmission, and some of its components, according to an embodiment of the invention;
  • FIG. 6 illustrates a beacon frame, according to an embodiment of the invention.
  • FIGS. 7-8 illustrate various information frames, according to various embodiments of the invention; and
  • FIGS. 9-10 are flow charts of methods for expanding a range of a network, according to various embodiments of the invention.
  • DETAILED DESCRIPTION OF THE DRAWINGS
  • The invention provides an ultra wide band wireless medium access control method and a device capable of performing ultra wide band wireless medium access control schemes.
  • Conveniently, the device is a part of a ultra wideband wireless network and has a communication protocol stack that includes at least a PHY layer and a MAC layer. The MAC layer of such devices controls the access to ultra wide band wireless medium and is referred to ultra wide band wireless medium access control.
  • Examples of devices that have a ultra wide band PHY layer are illustrated in the following U.S. patent applications, all being incorporated herein by reference: U.S. patent application Ser. No. 10/389,789 filed on Mar. 10 2003 and U.S. patent application Ser. No. 10/603,372 filed on Jun. 25 2003.
  • The receiver can include various components that are arranged in multiple layers. A first configuration includes a frame convergence sub-layer, a MAC layer, a PHY layer as well as MAC SAP, PHY SAP, frame convergence sub-layer SAP and a device management entity can also be utilized. Another configuration is described at FIGS. 4 and 5.
  • Wisair Inc. of Tel Aviv Israel manufactures a chip set that includes a Radio Frequency PHY layer chip and a Base-Band PHY layer chip. These chips can be connected in one end to a RF antenna and on the other hand can be connected to or may include a MAC layer circuitry.
  • FIG. 4 illustrates a device 60 that is capable of wireless transmission, according to an embodiment of the invention.
  • Conveniently, device 60 supports a multi-layer communication protocol stack that includes a PHY layer and a MAC layer. MAC layer hardware and/or software components form an ultra wide band wireless medium access controller, that is adapted to participate in a distributed media access control scheme that allocates at least one timeslot for a transmission of information from a first device to a group of peer devices and for a transmission of acknowledgement massages from the peer devices of the group. PHY layer hardware and/or software components form a transmission circuitry adapted to transmit the information in response to the allocation.
  • Device 60 includes antenna 61 that is connected to a RF chip 62. RF chip 62 is connected to a MAC/PHY layers chip 63 that includes a PHY layer block 63 and a MAC layer block 64. The MAC/PHY layers chip 63 is connected to an application entity 66 that provides it with information to be eventually transmitted (TX) and also provides the application 66 with information received (RX) by antenna 61 and processed by PHY and MAC layers blocks 68 and 69 of FIG. 4 b.
  • Typically, the MAC layer block 64 controls the PHY layer block using a PHY status and control interface. The MAC and PHY layers exchange information (denoted TX and RX) using PHY-MAC interface 90. The RF chip 62 provides to the PHY layer block 63 received information that is conveniently down-converted to base band frequency. The RF chip 62 receives from the PHY layer block 63 information to be transmitted as well as RF control signals. The application 66 is connected to the MAC/PHY layers chip 63 by a high speed I/O interface.
  • FIG. 5 illustrates various hardware and software components of the MAC/PHY layers chip 63, according to an embodiment of the invention.
  • The Upper Layer IF block 64 of the MAC/PHY layers chip 63 includes hardware components (collectively denoted 69) and software components (collectively denoted 68). These components include interfaces to the PHY layer (MAC-PHY interface 90) and to the application (or higher layer components).
  • The hardware components 69 includes configuration and status registers 81, Direct Memory Access controller 82, First In First Out (FIFO) stacks 83 and frame validation and filtering components 84, DRP and PCA slots schedulers 85, ACK processors 86, and MAC-PHY internal interface 87.
  • The software components 68 includes a management module 72, transmit module 73, receive module 74 m hardware adaptation layer 75, DMA drivers 76, MAC layer management entity (MLME) service access point (SAP) 71, MACS API 70 and the like.
  • These software and hardware components are capable of performing various operations and provide various services such as: providing an interface to various layers, filtering and routing of specific application packets sent to MAC data queues or provided by these queues, performing information and/or frame processing, and the like.
  • The routing can be responsive to various parameters such as the destinations of the packets, the Quality of Service characteristics associated with the packets, and the like.
  • The processing of information along a transmission path may include: forming the MAC packet itself, including MAC header formation, aggregation of packets into a bigger PHY PDU for better efficiency, fragmentation of packets for better error rate performance, PHY rate adaptation, implementation of Acknowledgements policies, and the like.
  • The processing of information along a reception path may include de-aggregation and/or de-fragmentation of incoming packets, implementation of acknowledgment policies and the like.
  • The hardware components are capable of transferring data between MAC software queues and MAC hardware (both TX and RX), scheduling of beacons slots, scheduling of DRP and PCA access slots, validation and filtering (according to destination address) of incoming frames, encryption/decryption operations, low-level acknowledgement processing (both in the TX path and in the RX path), and the like.
  • Device 60 can be a simple device or even a complex device such as but not limited to a multimedia server that is adapted to transmit information frames of different types to multiple devices. It can, for example transmit Streaming data, like voice, Video, Game applications, etc.) data files during DRP slots, and while PCA slots transmits video over IP frames, download MP3 files, download MPEG-2 files, and stream or download MPEG-4 streams.
  • Device 60 (of FIG. 4 b) includes a receiver, adapted to receive transmissions from members of a first network and from an external device. The external device is not capable of receiving transmissions from a second device of the first network. Device 60 further includes a transmitter, adapted to transmit information to members of the first network and to the external device; wherein the device is adapted to relay transmission from the second device of the first network to the external device.
  • Device 60, as illustrated in FIGS. 4 and 5, has many dual purpose components that form a part of both the receiver and the transmitter. For example, antenna 61, RF chip 62, PHY/MAC layers chip 63 are a part of the receiver and the transmitter. Nevertheless, there are some components that are not shared, such as the transmit module 73 and the receive module 74. It is noted that other configurations of device 60 can be utilized.
  • Conveniently, device 60 is adapted to inform the second device that device 60 is capable of relaying information to the external device. Conveniently, device 60 is adapted to receive information from the external device and transmit the information to the second device at a timing that corresponds to timing constraints of the first network.
  • Conveniently, the devices are adapted to perform a “peer discovery” stage. It is noted that a certain device can ask an adjacent device to relay information to another device (external device) if the certain device is aware that the external device is a potential peer device. This may involve an exchange of information between the devices. According to various embodiments of the invention this can be implemented by a requesting from devices to transmit information about their neighbors, including their identity and optionally their capabilities. A request can be answered by a response from each receiving device. The exchange can be implemented by exchanging information Elements (IEs).
  • A request may include a the type of requested information—DAVID, MAC address, capabilities, and the like.
  • It is noted that this information exchange can occur in various timings and between various devices. This can occur during device initialization, during device operation, between devices that are adjacent to the same device, between devices that belong to the same network, between devices that do not belong to the same network, or between parts of one or more networks. The exchange can be initiated by certain devices or by any device.
  • According to an embodiment of the invention device 60 is further adapted to allocate a first destination identification value to transmissions destined to the device 60 and to allocate a second destination identification value to transmissions destined to be relayed by the device 60 to the external device. Conveniently, during a relay operation device 60 changes destination identification information.
  • According to another embodiment of the invention the destination identification can also represent a last destination of the information. Conveniently, such a field is not changed during the relay operation.
  • According to yet another embodiment of the invention the path (or a portion of said path) that should be passed by the information frame can be represented in various manners known in the art. The path includes at least the device that originated the information frame, the last destination device and can also include one or more intermediate (relaying) devices.
  • Conveniently, device 60 is further adapted to request the remote device to acknowledge a reception of at least one information frame from the second device.
  • According to various embodiments of the invention device 60 is able to relay the information at a MAC layer or at higher communication layers.
  • In case of a scheme where traffic is directed to the repeater with repeater's DEVID, the relaying device shall be able to distinguish between information frames that are intended to be relayed and between information frames that are aimed to it and are not supposed to be relayed to the external device. Conveniently, the information frame includes a destination source identification information (destination ID, or DEVID) and stream identification information (StreamID) that facilitates said distinction.
  • Alternatively, the traffic is marked as directed to the “final” destination, and the repeater is relaying this traffic to the intended recipient.
  • According to an embodiment of the invention distinct destination ID values are assigned to each device and to each relayed device. Thus, information frames aimed to device B 12 will include a certain destination ID value, while information frames that are destined to device F 26, are assigned with another destination ID value, although they are relayed via device B 12. If, for example, device B 12 also relays information frames to device D 24 then these information frames will include yet another destination ID value.
  • Conveniently, the relaying process includes replacing destination ID values. For example, if device A 11 sends an information frame to device F 26, via device B 12, then the information frame will include a first destination ID (F_via_B) indicating that B 12 should relay the information frame to F 26. This destination ID (F_via_B) is replaced, by device B, by another destination ID indicating that device B is sending an information frame to device F. The other destination ID can equal the destination ID (DEVID_F) used by members of the second network 20 when sending information frames to device F 26.
  • Device B 12, which is capable of relaying information frames to certain external devices shall notify other members of the first network 10 that it is capable of relaying information frames to these external devices, and shall receive a unique destination ID value for each of said certain devices.
  • Conveniently, each device can select certain DEVID values from a predefined range of DEVID values. If a collision occurs it can be detected by transmission of said DEVID values in beacon frames, and the collision can be resolved in various well known manners.
  • For example, if a device receives from another device an DEVID that equals one of its DEVIDs it will notify the other device about the collision and either determine by itself how to replace the common DEVID or cooperate with the other device in order to resolve the collision. It is noted that each device that detects a DEVID collision may alter his DEVID until the collision is resolved. Typically DEVID values are selected in a random or a pseudo random manner from a predefined range of DEVIDs but this is not necessarily so. It is further noted that a certain device can be aware of a DEVID conflict if he receives transmissions from two devices that use the same DEVID.
  • FIG. 6 illustrates a beacon frame 400, according to an embodiment of the invention.
  • Beacon frame 400 is transmitted by a certain device, such as but not limited to device B 12. Beacon frame 400 includes various fields such as beacon slot number field 402, DEVID of the certain device 404 (DEVID_B), DEVID conflict field 406, and a list 408 of devices (represented by their DEVID) that are received by the certain device. Conveniently, the list 408 includes a list of beacon frames received by the device and their timings.
  • It is assumed that device B 12 receives transmissions from devices A 11 and C 13 of the first network 10 and form devices F 26 and D 24 of the second network 20. Accordingly, list 408 includes the following DEVIDs: DEVID_A, DEVID_C, DEVID_D and DEVID_F. List 408 may also include their beacon frame timing T1-T4. It is assumed that the times are aligned to TDMA frame 30, but this is not necessarily so.
  • It is noted that if the device is a relaying device than the various DEVIDs allocated for the relaying of information can appear within field 404, or within a relay indication 410. It is assumed that device B 12 can relay information from device A 11 and device C to devices F 26 and D 24 of the second network 20. Thus, relay information 410 includes four DEVIDs: F_via_B, B_via_F, B_via_D and D_via_B.
  • According to another embodiment these relay information fields are not used, and the need to relay a certain information frame can be dictated by the reservation of a relay slot (being either DRP or PCA slot or slots).
  • These relay fields are not usually required when the information frame includes a “final” destination field or information defining the transmission path.
  • Conveniently, the beacon frame includes additional information (not shown) indicating the capability of the certain device to accept DRP or PCA traffic during future timeslots, the intended utilization of future TDMA frames by the certain device, types of DRP reservations, rate information and other capabilities of the device.
  • It is noted that the various DEVIDs allocated for relay transmission, indications about DEVID conflicts, a list of received devices and the like can be transmitted in other manners. For example at least some of said information can be included within various command frames and information frames.
  • According to various embodiments of the invention the transmission between the external device and the relaying device can occur according to timing constraints of the first network, according to timing constraints of a second network that includes the external device or according to both timing constraints.
  • For example, assuming that: (i) device B 12 relays information from device A 11 to device F 26. (ii) device B is aware of the TDMA frames of both first and second networks 10 and 20, (iii) TDMA frame 30 that is used by the members of the first network 10 does not interfere with TDMA frame 40 that is being used by the members of the second network 20. If these assumptions are satisfied then device B 12 can request to transmit information frames to device F 26 during various slots of TDMA frame 40, assuming that the members of the second network 20 approve the request.
  • Device F 26 can transmit information frames to device B 12 during slots of TDMA frame 40. Device B 12 can exchange information frames with device A 11 during slots of TDMA frame 30. It is noted that if the transmissions of the various networks overlap then device B can initiate a channel change process that will lead the members of one of the networks to use another channel, or to “re-shuffle” its DRP timing reservations. Re-shuffling does ont require to perform a full DRP timing re-negotiation.
  • According to various embodiments of the invention the transmissions from the relaying device to the external device can be received by other members of the first network, but this is not necessarily so. For example, the relaying device can exchange information with the members of the first network using a first channel and use another channel for exchanging information with the external device. It is noted that the first and second channels have different transmission characteristics.
  • According to various embodiments of the invention the relaying device can transmit a single beacon frame, that is received by both members of the first network and also by the external device, but this is not necessarily so. For example, the first device can transmit a second beacon frame for communicating with the external device. Yet for another example, device B can use a single beacon frame in order to communicate with members of the first and second networks, but this is not necessarily so and it can transmit a first beacon frame to the members of the first network and transmit a second beacon frame to the members of the second network.
  • FIGS. 7-8 illustrate information frames 100 and 100′, according to various embodiments of the invention.
  • Information frame 100 of FIG. 7 is transmitted from device A 11 to device B 12. Information frame 100′ of FIG. 8 is transmitted from device B 11 to device F 26. The information frames differ by the destination ID values that are includes within.
  • Information frame 100 includes a physical layer convergence procedure (PLCP) preamble 112, a PHY layer header 114, a MAC layer header 116, a header check sequence field (HCS) 118, header tail bits 120, header pad bits 121, payload 122, a frame check sequence field (FCS) 124, frame tail bits 126 and pad bits 128.
  • The information frame 100 includes MAC layer fields such as fields 116, 118, 122 and 124. Information frame 100 also includes various PHY layer fields, such as fields 112, 114, 120, 121, 126 and 128. The payload 122 usually includes one or more MAC layer frames (also known as MSDU or MCDU) or frames of a upper communication protocol layer, such as an application layer.
  • The PLCP preamble 112 includes a packet and frame synchronization sequences that are followed by a channel estimation sequence. The PLCP preamble assists the receiver, among other things, to estimate the properties of the wireless medium. MBOA proposes two possible PLCP preambles—a short PLCP preamble and a long PLCP preamble. The long PLCP preamble is used at low bit rates. At high bit rates a first frame includes the long PLCP preamble while the remaining frames include the short PLCP preamble.
  • The PHY layer header 114 includes information about the type of modulation, the coding rate and the spreading factor used during the transmission of the information, the length of the frame payload and scrambling data information.
  • The MAC layer header 116 includes a frame control field 200, source and destination identification fields 220 and 222, sequence control fields 224 and duration/access method fields 226. The frame control field 220 includes a protocol version field 202, a frame type field 204 (indicates if a frame is a beacon frame, control frame, command frame, data frame and the like), a SEC field 206 (indicated if the frame is encrypted), an acknowledge field 208 (no acknowledge, immediate acknowledge, burst acknowledge or burst acknowledge request), a retry field 210 (indicates if the frame is re-transmitted), and delivery ID field 212. An immediate acknowledge requires to send an acknowledge signal after the recipient of the information frame. The burst acknowledge indicates to store received frames and the burst acknowledge request indicates to send an acknowledgment message after a successful reception of a burst of information.
  • The destination identification field 220 of information frame 100 indicates the identity of intended receivers and may indicate that the transmission is multicast or even broadcast transmission. The destination identification field 220 includes a destination ID value (denoted F_via_B) indicating that the information frame 100 is to be received by device B and then relayed to device F 26. The destination identification field 220 of information frame 100′ includes a destination ID value (DEVID_F) indicating that the information frame 100 is to be sent to device F 26.
  • As previously mentioned, field 200 can include a dedicated relay assigned information, a final destination field or another information describing the path of the information frame.
  • The header tail bits 120 as well as the frame tail bits 126 are set to zero, thus allowing a convolutional encoder within the receiver to return to a “zero state” and improve its error probability. The header tail bits 120 (the frame tail bits 126) are followed by header pad bits 121 (frame pad bits 128) in order to align the information stream on an OFDM interleaver boundaries.
  • FIG. 9 is a flow chart of method 200 for expanding a range of an ultra wide band wireless network.
  • Method 200 starts by stage 210 of providing a first network and an external device, the first network includes multiple devices that receive ultra wide band wireless transmissions from each other, the external device is capable of receiving a transmission from a first device of the first network but is not capable of receiving a transmission from a second device of the first network. Referring to the example set forth in FIG. 1 it is assumed that the external device is device F 24 and that device F 24 receives transmissions from device B 12 of first network 10 but not capable of receiving transmissions from device A 11.
  • According to an embodiment of the invention method 200 also includes a “peer identification stage. For convenience of explanation this stage was not shown.
  • According to an embodiment of the invention stage 210 is followed by stage 215 of informing the second device that the first device is capable of relaying information to the external device. Referring to the above mentioned example, device B 12 informs device A 11, conveniently by its beacon frame, that is receives transmissions from device F 26.
  • Stage 215 is followed by stage 220 of allowing the first device to relay transmissions between the external device and the second device. Stage 220 may include assigning different destination ID to various devices and relayed devices, enabling the relaying device to transmit and receive to various devices. Said enabling may include allocating time slots and DeliveryID for transmissions of information frames by the relaying device, transmitting one or more beacon frame by the relaying device, and the like. It is also noted that the transmission of the one or more beacon frames can occur during stage 210.
  • Conveniently stage 220 includes allocating a first destination identification value to transmissions destined to the first device and allocating a second destination identification value to transmissions destined to be relayed by the first device to the external device.
  • Conveniently, stage 220 is followed by stage 230 of receiving information from the external device and transmitting the information to the second device. The transmission occurs at a timing that corresponds to timing constraints of the first network.
  • Stage 230 may also include receiving information from the second device and transmitting the information to the external device. The transmission occurs at a timing that corresponds to timing constraints of the external device or of a second network to which the external device belongs.
  • According to an embodiment of the invention stage 230 includes changing destination identification information. Conveniently, stage 230 includes requesting the remote device to acknowledge a reception of at least one information frame from the second device.
  • The stage of relaying can be applied in the MAC layer or may involve other upper layers. For example, the exchange of destination ID can be done at an application layer that is above the MAC layer. Referring to the example set forth in FIG. 4 a the relaying can be done by the application 66, or by the MAC layer block 64.
  • FIG. 10 is a flow chart of method 300 for expanding a range of an ultra wide band wireless network.
  • Method 300 starts by stage 310 includes providing a first network and an external device, the first network includes multiple devices that participate in a first distributed media access control scheme, whereas the external device participates in a second distributed media access control scheme and is capable of receiving a transmission from a first device of the first network but not capable of receiving a transmission from a second device of the first network. The networks can be other than ultra wide band wireless networks.
  • Stage 310 can be followed by stage 320 of relaying, by the first device, transmissions between the external device and the second device.
  • It will be apparent to those skilled in the art that the disclosed subject matter may be modified in numerous ways and may assume many embodiments other then the preferred form specifically set out and described above. For example, the amount of access units can differ from the amount of queues, the amount of queues and the amount of transmission priorities can vary. It is noted that each of the mentioned above circuitries can be applied by hardware, software, middleware or a combination of the above.
  • Accordingly, the above disclosed subject matter is to be considered illustrative and not restrictive, and to the maximum extent allowed by law, it is intended by the appended claims to cover all such modifications and other embodiments, which fall within the true spirit and scope of the present invention.
  • The scope of the invention is to be determined by the broadest permissible interpretation of the following claims and their equivalents rather then the foregoing detailed description.

Claims (24)

1. A method for expanding a range of an ultra wide band wireless network, the method comprises: providing a first network and an external device, the first network comprises multiple devices that receive ultra wide band wireless transmissions from each other, the external device is capable of receiving a transmission from a first device of the first network but not capable of receiving a transmission from a second device of the first network; and allowing the first device to relay transmissions between the external device and the second device.
2. The method of claim 1 wherein the stage of allowing is preceded by a stage of informing the second device that the first device is capable of relaying information to the external device.
3. The method of claim 1 further comprising receiving information from the external device and transmitting the information to the second device at a timing that corresponds to timing constraints of the first network.
4. The method of claim 1 further comprising allocating a first destination identification value to transmissions destined to the first device and allocating a second destination identification value to transmissions destined to be relayed by the first device to the external device.
5. The method of claim 1 whereas a relaying of information involves changing destination identification information.
6. The method of claim 1 further comprising requesting the remote device to acknowledge a reception of at least one information frame from the second device.
7. The method of claim 1 further comprising relaying the information at a MAC layer.
8. The method of claim 1 further comprising relaying the information at a layer higher than the MAC layer.
9. An ultra wide band device comprising: (i) a receiver, adapted to receive transmissions from members of a first network and from an external device not capable of receiving transmissions from a second device of the first network, and (ii) a transmitter, adapted to transmit information to members of the first network and to the external device; wherein the device is adapted to relay transmission from the second device of the first network to the external device.
10. The device of claim 9 wherein the device is further adapted to inform the second device that the device is capable of relaying information to the external device.
11. The device of claim 9 further adapted to receive information from the external device and transmit the information to the second device at a timing that corresponds to timing constraints of the first network.
12. The device of claim 9 further adapted to allocate a first destination identification value to transmissions destined to the device and to allocate a second destination identification value to transmissions destined to be relayed by the device to the external device.
13. The device of claim 9 further adapted to change destination identification information.
14. The device of claim 9 further adapted to request the remote device to acknowledge a reception of at least one information frame from the second device.
15. The device of claim 9 further adapted to relay the information at a MAC layer.
16. The device of claim 9 further adapted to relay the information at a layer higher than the MAC layer.
17. A method for expanding a range of first network, the method comprises: providing a first network and an external device, the first network comprises multiple devices that participate in a first distributed media access control scheme, whereas the external device participates in a second distributed media access control scheme and is capable of receiving a transmission from a first device of the first network but not capable of receiving a transmission from a second device of the first network; and relaying, by the first device, transmissions between the external device and the second device.
18. The method of claim 17 wherein the stage of relaying is preceded by a stage of informing the second device that the first device is capable of relaying information to the external device.
19. The method of claim 17 further comprising receiving information from the external device and transmitting the information to the second device over an ultra wide band wireless medium.
20. The method of claim 17 further comprising allocating a first destination identification value to transmissions destined to the first device and allocating a second destination identification value to transmissions destined to be relayed by the first device to the external device.
21. The method of claim 17 whereas a relaying of information involves changing destination identification information.
22. The method of claim 17 further comprising requesting the remote device to acknowledge a reception of at least one information frame from the second device.
23. The method of claim 17 further comprising relaying the information at a MAC layer.
24. The method of claim 17 further comprising relaying the information at a layer higher than the MAC layer.
US11/043,646 2004-01-08 2005-01-25 Methods and devices for expanding the range of a network Abandoned US20050237956A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US53543604P true 2004-01-08 2004-01-08
US53562104P true 2004-01-08 2004-01-08
PCT/IL2005/000021 WO2005065035A2 (en) 2004-01-08 2005-01-06 Distributed and centralized media access control device and method
US11/043,646 US20050237956A1 (en) 2004-01-08 2005-01-25 Methods and devices for expanding the range of a network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/043,646 US20050237956A1 (en) 2004-01-08 2005-01-25 Methods and devices for expanding the range of a network

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2005/000021 Continuation WO2005065035A2 (en) 2004-01-08 2005-01-06 Distributed and centralized media access control device and method

Publications (1)

Publication Number Publication Date
US20050237956A1 true US20050237956A1 (en) 2005-10-27

Family

ID=34753024

Family Applications (6)

Application Number Title Priority Date Filing Date
US11/043,457 Abandoned US20050238084A1 (en) 2004-01-08 2005-01-25 Method and system for operating multiple dependent networks
US11/043,476 Abandoned US20050238025A1 (en) 2004-01-08 2005-01-25 Device and method for mapping information streams to MAC layer queues
US11/043,646 Abandoned US20050237956A1 (en) 2004-01-08 2005-01-25 Methods and devices for expanding the range of a network
US11/043,456 Expired - Fee Related US7936774B2 (en) 2004-01-08 2005-01-25 Method and devices for multicasting information over a network that applied a distributed media access control scheme
US11/043,279 Abandoned US20050249183A1 (en) 2004-01-08 2005-01-25 Method and device for transmission and reception over a distributed media access control network
US11/043,253 Expired - Fee Related US7496064B2 (en) 2004-01-08 2005-01-25 Ultra wide band wireless medium access control method and a device for applying an ultra wide band wireless medium access control scheme

Family Applications Before (2)

Application Number Title Priority Date Filing Date
US11/043,457 Abandoned US20050238084A1 (en) 2004-01-08 2005-01-25 Method and system for operating multiple dependent networks
US11/043,476 Abandoned US20050238025A1 (en) 2004-01-08 2005-01-25 Device and method for mapping information streams to MAC layer queues

Family Applications After (3)

Application Number Title Priority Date Filing Date
US11/043,456 Expired - Fee Related US7936774B2 (en) 2004-01-08 2005-01-25 Method and devices for multicasting information over a network that applied a distributed media access control scheme
US11/043,279 Abandoned US20050249183A1 (en) 2004-01-08 2005-01-25 Method and device for transmission and reception over a distributed media access control network
US11/043,253 Expired - Fee Related US7496064B2 (en) 2004-01-08 2005-01-25 Ultra wide band wireless medium access control method and a device for applying an ultra wide band wireless medium access control scheme

Country Status (2)

Country Link
US (6) US20050238084A1 (en)
WO (1) WO2005065035A2 (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060018392A1 (en) * 2004-07-26 2006-01-26 Blue7 Communications Intelligent array radio architecture
US20060176860A1 (en) * 2004-11-02 2006-08-10 Janne Marin Techniques for stream handling in wireless communications networks
US20080070504A1 (en) * 2006-09-18 2008-03-20 Infineon Technologies Ag Communication terminal device
DE102006043667A1 (en) * 2006-09-18 2008-03-27 Infineon Technologies Ag Communication terminal e.g. mobile telephone, has message production device arranged to produce information requirement message that specifies information about another communication terminal
US20090141668A1 (en) * 2006-05-11 2009-06-04 Nortel Networks Limited Media access control protocol for multi-hop network systems and method therefore
US20090185534A1 (en) * 2008-01-18 2009-07-23 Futurewei Technologies, Inc. Method and Apparatus for Transmitting a Packet Header
WO2009112080A1 (en) * 2008-03-14 2009-09-17 Nokia Siemens Networks Oy Method, devices and system for local collision avoidance for random access in relay networks
US20090268682A1 (en) * 2008-04-25 2009-10-29 Canon Kabushiki Kaisha Communication system, control method thereof, terminal station, and computer-readable storage medium
US20100182965A1 (en) * 2007-06-20 2010-07-22 Benoist Pierre Sebire Avoiding collisions between semi-persistent allocation and dynamic allocation in radio access networks
US20120243556A1 (en) * 2011-03-25 2012-09-27 Chia-Wei Yen MAC Abstraction Sub-layer and MAC Table for a Communication System and Related Communication Device
US20130003689A1 (en) * 2010-03-11 2013-01-03 Electronic And Telecommunications Research Institute Method and apparatus for allocating reservation resource for relay in wireless communication system using media access control based on reservation
US20140177514A1 (en) * 2012-12-20 2014-06-26 Shahrnaz Azizi Techniques for Transmitting Data via Relay Communication Links
US20140328249A1 (en) * 2013-05-03 2014-11-06 Qualcomm Incorporated Systems and methods for aggregation of physical protocol data units on a wireless network
WO2015030789A1 (en) * 2013-08-30 2015-03-05 Empire Technology Development, Llc Repeater emulation to increase network range
US9042550B2 (en) 2012-03-30 2015-05-26 Qualcomm Incorporated Methods and apparatus for base station assisted peer discovery through aggregation of expressions
US9258692B2 (en) 2012-03-30 2016-02-09 Qualcomm Incorporated Relay assisted peer discovery

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4005974B2 (en) * 2004-01-09 2007-11-14 株式会社東芝 Communication apparatus, communication method and a communication system,
US8045494B2 (en) * 2004-02-06 2011-10-25 Koninklijke Philips Electronics N.V. System and method for hibernation mode for beaconing devices
AU2005210998B2 (en) * 2004-02-06 2009-04-23 Koninklijke Philips Electronics, N.V. A system and method for an ultra wide-band medium access control distributed reservation protocol
ES2347260T3 (en) * 2004-03-24 2010-10-27 Koninklijke Philips Electronics N.V. Distributed beaconing periods for ad hoc networks.
US20070195863A1 (en) * 2004-05-03 2007-08-23 Texas Instruments Incorporated (Updated) Preamble for FDMA
KR100604885B1 (en) * 2004-07-13 2006-07-31 삼성전자주식회사 Wireless network device and method aggregating MAC service data units
KR20070043887A (en) * 2004-08-18 2007-04-25 스타카토 커뮤니케이션즈, 인코포레이티드 Beacon group merging
FR2882599B1 (en) * 2005-02-25 2007-05-04 Somfy Soc Par Actions Simplifi communication system with accounting window and associated communication frame
US20060198335A1 (en) * 2005-03-04 2006-09-07 Jukka Reunamaki Embedding secondary transmissions in an existing wireless communications network
US20100185717A9 (en) * 2005-03-10 2010-07-22 Dhinakar Radhakrishnan Method of improving control information acquisition latency by transmitting control information in individually decode-able packets
BRPI0611465A2 (en) * 2005-03-28 2010-09-08 Pantech Co Ltd digital communication method of multiple access access networks via radio UWB
US8111698B2 (en) * 2005-03-31 2012-02-07 Alcatel Lucent Method of performing a layer operation in a communications network
US20060268931A1 (en) * 2005-05-31 2006-11-30 Assaf Sella Method, device and computer readable medium for exchanging information in a hybrid environment
US7912033B2 (en) * 2005-05-31 2011-03-22 Olympus Corporation Device synchronization on a communication network
TW200718142A (en) 2005-08-16 2007-05-01 Wionics Research Frame synchronization
US7454218B2 (en) * 2005-08-19 2008-11-18 Panasonic Corporation Method of band multiplexing to improve system capacity for a multi-band communication system
KR100647906B1 (en) * 2005-09-15 2006-11-13 한국전자통신연구원 Wireless usb host apparatus of uwb
JP4715433B2 (en) * 2005-10-03 2011-07-06 ソニー株式会社 Wireless communication system, wireless communication apparatus, and a computer program
JP2009515269A (en) * 2005-11-09 2009-04-09 ノキア コーポレイション Direct memory access controller device that provides the serialization of data by a method and computer program
US7729236B2 (en) * 2005-11-10 2010-06-01 Nokia Corporation Use of timing information for handling aggregated frames in a wireless network
KR100711094B1 (en) * 2005-11-29 2007-04-18 삼성전자주식회사 Resource allocating method among mobile-stations in distribution communication network
US7653087B2 (en) * 2006-01-06 2010-01-26 Fujitsu Limited Methods of synchronizing subscriber stations to communications networks
WO2007127887A2 (en) * 2006-04-26 2007-11-08 Qualcomm Incorporated Sub-packet pulse-based communication
TWI429219B (en) * 2006-05-01 2014-03-01 Koninkl Philips Electronics Nv Method of reserving resources with a maximum delay guarantee for multi-hop transmission in a distributed access wireless communications network
US20070263584A1 (en) * 2006-05-09 2007-11-15 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving uncompressed audio/video data
US20070270103A1 (en) * 2006-05-16 2007-11-22 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving uncompressed audio/video data
US20070286103A1 (en) * 2006-06-08 2007-12-13 Huaning Niu System and method for digital communication having puncture cycle based multiplexing scheme with unequal error protection (UEP)
US20070288980A1 (en) * 2006-06-08 2007-12-13 Huaning Niu System and method for digital communication having a frame format and parsing scheme with parallel convolutional encoders
US20070286221A1 (en) * 2006-06-13 2007-12-13 Mau-Lin Wu Memory management method and memory architecture for transmitting UWB PCA frames
US8107552B2 (en) 2006-06-28 2012-01-31 Samsung Electronics Co., Ltd. System and method of wireless communication of uncompressed video having a fast fourier transform-based channel interleaver
US8194750B2 (en) 2006-10-16 2012-06-05 Samsung Electronics Co., Ltd. System and method for digital communication having a circulant bit interleaver for equal error protection (EEP) and unequal error protection (UEP)
KR100763551B1 (en) * 2006-11-15 2007-10-04 삼성전자주식회사 Apparatus for reducing contention in prioritized contention access of wireless local network and method using the same
US20080130592A1 (en) * 2006-12-04 2008-06-05 Electronics And Telecommunications Research Institute Apparatus and method for managing medium access slot in wireless personal area network
US8169995B2 (en) * 2006-12-04 2012-05-01 Samsung Electronics Co., Ltd. System and method for wireless communication of uncompressed video having delay-insensitive data transfer
JP2008160182A (en) * 2006-12-20 2008-07-10 Toshiba Corp Radio communication equipment system, and its radio communication sequence
CN104408003B (en) * 2006-12-22 2018-06-05 高通股份有限公司 Protocols and enhanced wireless usb hub
US8879448B2 (en) * 2006-12-22 2014-11-04 Samsung Electronics Co., Ltd. Apparatus for controlling power of WiMedia media access control device and method using the same
US20080253368A1 (en) * 2007-04-11 2008-10-16 Nokia Siemens Networks Oy Policy control of multiplexed real time protocol and real time control protocol
US8406205B2 (en) * 2007-08-08 2013-03-26 Qualcomm Incorporated Apparatus and method for channel reservation in wireless communication systems
CN101953107B (en) * 2007-09-19 2014-05-28 新加坡科技研究局 Methods for network throughput enhancement
US7937045B2 (en) * 2007-10-11 2011-05-03 Sony Ericsson Mobile Communications Ab Softmultiband radio for ultra wide band
US20090103435A1 (en) * 2007-10-17 2009-04-23 Nokia Corporation Dynamic rate adaptation for distributed wireless network
US20090106810A1 (en) * 2007-10-22 2009-04-23 Artimi, Inc. Ultra wideband communications protocols
GB2453936B8 (en) * 2007-10-22 2011-08-03 Artimi Inc Ultra wideband communications protocols
KR100931313B1 (en) * 2007-12-17 2009-12-11 한국전자통신연구원 Short-range wireless communication device and method
TW200944007A (en) * 2007-12-27 2009-10-16 Koninkl Philips Electronics Nv Simplified beaconing and channel reservation techniques for short range wireless networks
WO2009136724A2 (en) * 2008-05-09 2009-11-12 Lg Electronics Inc. Device and method for multicast in wireless local access network
JP5316208B2 (en) 2009-05-08 2013-10-16 ソニー株式会社 Communication apparatus and communication method, a computer program and a communication system,
US10225047B2 (en) * 2009-12-08 2019-03-05 Qualcomm Incorporated Method and apparatus for multicast block acknowledgement
US9350495B2 (en) * 2009-12-08 2016-05-24 Qualcomm Incorporated Method and apparatus for multicast block acknowledgment
US9172597B2 (en) * 2011-04-28 2015-10-27 Invensys Systems, Inc. Data combiner and splitter
US9185191B2 (en) * 2011-06-16 2015-11-10 Mediatek Inc. Unified network architecture based on medium access control abstraction sub-layer
US9301266B2 (en) 2011-08-19 2016-03-29 Qualcomm Incorporated Beacons for wireless communication
US9871732B2 (en) * 2012-01-10 2018-01-16 International Business Machines Corporation Dynamic flow control in multicast systems
US20130176851A1 (en) * 2012-01-10 2013-07-11 International Business Machines Corporation Dynamic flow control in multicast systems
JP2013197909A (en) * 2012-03-21 2013-09-30 Ricoh Co Ltd Radio communication method and radio communication system
JP6069858B2 (en) * 2012-03-21 2017-02-01 株式会社リコー Wireless communication method and a radio communication system
US9344204B2 (en) * 2012-04-05 2016-05-17 Nokia Technologies Oy Method, apparatus, and computer program product for adaptive relaying data distribution in wireless networks
US9271269B2 (en) 2012-09-28 2016-02-23 Motorola Solutions, Inc. Method and system for assigning slot reservations to subscriber radios in a telecommunications system
TWI506995B (en) * 2012-11-22 2015-11-01 Univ Nat Kaohsiung 1St Univ Sc Cross-layer control system and method for multi-wireless communication protocols
US9369258B2 (en) 2013-05-03 2016-06-14 Qualcomm Incorporated Systems and methods for peer-to-peer and AP traffic multiplexing
JP2016066891A (en) * 2014-09-24 2016-04-28 東芝ライテック株式会社 Communication device, communication method, and communication program
US9660744B1 (en) * 2015-01-13 2017-05-23 Enforcement Video, Llc Systems and methods for adaptive frequency synchronization
US9948561B2 (en) * 2015-04-14 2018-04-17 Cisco Technology, Inc. Setting delay precedence on queues before a bottleneck link based on flow characteristics
US20170104569A1 (en) * 2015-10-07 2017-04-13 Microsoft Technology Licensing, Llc Wireless data-acknowledgement communication using frame aggregation
JP6436144B2 (en) * 2016-10-17 2018-12-12 株式会社リコー Radio communication method, radio communication system, and program

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6497656B1 (en) * 2000-02-08 2002-12-24 General Electric Company Integrated wireless broadband communications network
US20030169697A1 (en) * 2001-05-08 2003-09-11 Mitsuhiro Suzuki Radio communication system, radio communication control apparatus, radio communication control method, and computer program
US20050042999A1 (en) * 2003-08-22 2005-02-24 Rappaport Theodore S. Broadband repeater with security for ultrawideband technologies
US6938171B1 (en) * 1998-06-12 2005-08-30 Fujitsu Limited Gateway system and recording medium
US7346120B2 (en) * 1998-12-11 2008-03-18 Freescale Semiconductor Inc. Method and system for performing distance measuring and direction finding using ultrawide bandwidth transmissions

Family Cites Families (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5365551A (en) * 1992-12-15 1994-11-15 Micron Technology, Inc. Data communication transceiver using identification protocol
ID24678A (en) * 1997-06-06 2000-07-27 Salbu Res & Dev Pty Ltd Method of operating a multi-station network
US6256317B1 (en) * 1998-02-19 2001-07-03 Broadcom Homenetworking, Inc. Packet-switched multiple-access network system with distributed fair priority queuing
US6131012A (en) * 1998-05-26 2000-10-10 Nera Wireless Broadband Access As Method and system for a micro-channel bank for providing voice, data, and multimedia services in a wireless local loop system
SE516084C2 (en) * 1998-12-01 2001-11-19 Ericsson Telefon Ab L M A technique for controlling access to networks with packet switching
DE19921716A1 (en) * 1999-05-12 2000-11-16 Philips Corp Intellectual Pty Wireless network with concealed network node transfer node connected to concealed node for exchanging certain data of central node with concealed node
AT290283T (en) * 1999-12-06 2005-03-15 Ericsson Telefon Ab L M Methods and arrangements in a telecommunications network
US6952456B1 (en) * 2000-06-21 2005-10-04 Pulse-Link, Inc. Ultra wide band transmitter
US6741856B2 (en) * 2000-08-14 2004-05-25 Vesuvius Inc. Communique system for virtual private narrowcasts in cellular communication networks
US6920171B2 (en) * 2000-12-14 2005-07-19 Motorola, Inc. Multiple access frequency hopping network with interference anticipation
US6765870B2 (en) * 2000-12-21 2004-07-20 At&T Wireless Services, Inc. Medium access dynamic congestion control mechanism for wireless data
US20020118421A1 (en) * 2000-12-22 2002-08-29 Yijun Xiong Channel scheduling in optical routers
US20020089959A1 (en) * 2001-01-11 2002-07-11 Fischer Michael A. System and method for providing a selectable retry strategy for frame-based communications
US6882677B2 (en) * 2001-02-28 2005-04-19 Motorola, Inc. Method and apparatus for facilitating handoff in a wireless local area network
US7583623B2 (en) * 2001-03-02 2009-09-01 Ofer Zimmerman Method and system for packing management messages in a communication system
US7287649B2 (en) * 2001-05-18 2007-10-30 Broadcom Corporation System on a chip for packet processing
US6717992B2 (en) * 2001-06-13 2004-04-06 Time Domain Corporation Method and apparatus for receiving a plurality of time spaced signals
AU2002345190A1 (en) * 2001-06-28 2003-03-03 King's College London Electronic data communication system
US20030060222A1 (en) * 2001-09-25 2003-03-27 Johan Rune Network access point with auxiliary transceiver
US7586914B2 (en) * 2001-09-27 2009-09-08 Broadcom Corporation Apparatus and method for hardware creation of a DOCSIS header
US7535929B2 (en) * 2001-10-25 2009-05-19 Sandeep Singhai System and method for token-based PPP fragment scheduling
EP1317110B1 (en) * 2001-11-30 2003-07-16 Alcatel Alsthom Compagnie Generale D'electricite IP platform for advanced multipoint access systems
US7016948B1 (en) * 2001-12-21 2006-03-21 Mcafee, Inc. Method and apparatus for detailed protocol analysis of frames captured in an IEEE 802.11 (b) wireless LAN
US6980541B2 (en) * 2002-01-03 2005-12-27 Freescale Semiconductor, Inc. Media access controller having pseudo-static guaranteed time slots
US7184705B2 (en) * 2002-03-08 2007-02-27 Telefonaktiebolaget Lm Ericsson (Publ) Distributed MAC in an uncoordinated radio environment
US7630403B2 (en) * 2002-03-08 2009-12-08 Texas Instruments Incorporated MAC aggregation frame with MSDU and fragment of MSDU
US7447228B1 (en) * 2002-03-15 2008-11-04 Nortel Networks Limited Technique for delivering bursted native media data flows over an ethernet physical layer
US7941149B2 (en) * 2002-05-13 2011-05-10 Misonimo Chi Acquistion L.L.C. Multi-hop ultra wide band wireless network communication
US20030227934A1 (en) * 2002-06-11 2003-12-11 White Eric D. System and method for multicast media access using broadcast transmissions with multiple acknowledgements in an Ad-Hoc communications network
DE50211457D1 (en) * 2002-06-13 2008-02-14 Alcatel Lucent Allocation of transmission capacity of a shared medium in a multipoint-to-point network
EP1525690B1 (en) * 2002-08-02 2012-07-18 NMS Communications Methods and apparatus for network signal aggregation and bandwidth reduction
US7574492B2 (en) * 2002-09-12 2009-08-11 Broadcom Corporation Optimizing network configuration from established usage patterns of access points
US7263105B2 (en) * 2002-12-18 2007-08-28 Intel Corporation WLAN device and method for interfacing between a MAC sublayer and a physical layer
US20040225725A1 (en) * 2003-02-19 2004-11-11 Nec Corporation Network system, learning bridge node, learning method and its program
US20040181811A1 (en) * 2003-03-13 2004-09-16 Rakib Selim Shlomo Thin DOCSIS in-band management for interactive HFC service delivery
KR100524069B1 (en) * 2003-04-04 2005-10-26 삼성전자주식회사 Home agent management apparatus and method
US7668124B2 (en) * 2003-05-21 2010-02-23 Broadcom Corporation Position based WPAN (Wireless Personal Area Network) management
US7702284B2 (en) * 2003-09-12 2010-04-20 Arto Palin Method and system for processing acknowledgments in a wireless communications network
US7339883B2 (en) * 2003-09-15 2008-03-04 Pulse-Link, Inc. Ultra-wideband communication protocol
US20050188103A1 (en) * 2003-12-30 2005-08-25 Nokia Corporation Method or device for delivering a packet in a scatternet
WO2006013531A2 (en) * 2004-07-27 2006-02-09 Koninklijke Philips Electronics, N.V. System and method to free unused time-slots in a distrubuted mac protocol
US20060268931A1 (en) * 2005-05-31 2006-11-30 Assaf Sella Method, device and computer readable medium for exchanging information in a hybrid environment
US20070286221A1 (en) * 2006-06-13 2007-12-13 Mau-Lin Wu Memory management method and memory architecture for transmitting UWB PCA frames
US20080063000A1 (en) * 2006-09-12 2008-03-13 Gadi Shor Device and a Method for Exchanging Information Between a Bridge and a Device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6938171B1 (en) * 1998-06-12 2005-08-30 Fujitsu Limited Gateway system and recording medium
US7346120B2 (en) * 1998-12-11 2008-03-18 Freescale Semiconductor Inc. Method and system for performing distance measuring and direction finding using ultrawide bandwidth transmissions
US6497656B1 (en) * 2000-02-08 2002-12-24 General Electric Company Integrated wireless broadband communications network
US20030169697A1 (en) * 2001-05-08 2003-09-11 Mitsuhiro Suzuki Radio communication system, radio communication control apparatus, radio communication control method, and computer program
US20050042999A1 (en) * 2003-08-22 2005-02-24 Rappaport Theodore S. Broadband repeater with security for ultrawideband technologies

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060018392A1 (en) * 2004-07-26 2006-01-26 Blue7 Communications Intelligent array radio architecture
US7433414B2 (en) * 2004-07-26 2008-10-07 Sigma Designs, Inc. Intelligent array radio architecture
US20060176860A1 (en) * 2004-11-02 2006-08-10 Janne Marin Techniques for stream handling in wireless communications networks
US7359361B2 (en) * 2004-11-02 2008-04-15 Nokia Corporation Techniques for stream handling in wireless communications networks
US8576882B2 (en) * 2006-05-11 2013-11-05 Blackberry Limited Media access control protocol for multi-hop network systems and method therefore
US20090141668A1 (en) * 2006-05-11 2009-06-04 Nortel Networks Limited Media access control protocol for multi-hop network systems and method therefore
US9438445B2 (en) 2006-05-11 2016-09-06 Blackberry Limited Media access control protocol for multi-hop network systems and method therefor
US8095078B2 (en) 2006-09-18 2012-01-10 Infineon Technologies Ag Communication terminal device
DE102006043667B4 (en) * 2006-09-18 2009-01-15 Infineon Technologies Ag Communication terminal, procedures for requesting communication terminal information A method for providing information communication terminal
US20080070504A1 (en) * 2006-09-18 2008-03-20 Infineon Technologies Ag Communication terminal device
DE102006043667A1 (en) * 2006-09-18 2008-03-27 Infineon Technologies Ag Communication terminal e.g. mobile telephone, has message production device arranged to produce information requirement message that specifies information about another communication terminal
US20100182965A1 (en) * 2007-06-20 2010-07-22 Benoist Pierre Sebire Avoiding collisions between semi-persistent allocation and dynamic allocation in radio access networks
US9094984B2 (en) * 2007-06-20 2015-07-28 Nokia Solutions And Networks Oy Avoiding collisions between semi-persistent allocation and dynamic allocation in radio access networks
US20090185534A1 (en) * 2008-01-18 2009-07-23 Futurewei Technologies, Inc. Method and Apparatus for Transmitting a Packet Header
US20110026409A1 (en) * 2008-03-14 2011-02-03 Honglin Hu Method, Devices and System for Local Collision Avoidance for Random Access in Relay Networks
US9320060B2 (en) 2008-03-14 2016-04-19 Nokia Solutions And Networks Oy Method, devices and system for local collision avoidance for random access in relay networks
WO2009112080A1 (en) * 2008-03-14 2009-09-17 Nokia Siemens Networks Oy Method, devices and system for local collision avoidance for random access in relay networks
US20090268682A1 (en) * 2008-04-25 2009-10-29 Canon Kabushiki Kaisha Communication system, control method thereof, terminal station, and computer-readable storage medium
US8521225B2 (en) * 2008-04-25 2013-08-27 Canon Kabushiki Kaisha Communication system, control method thereof, terminal station, and computer-readable storage medium
US9906987B2 (en) 2010-03-11 2018-02-27 Electronics And Telecommunications Research Institute Method for allocating reservation resource for relay in wireless communication system using media access control based on reservation
US20130003689A1 (en) * 2010-03-11 2013-01-03 Electronic And Telecommunications Research Institute Method and apparatus for allocating reservation resource for relay in wireless communication system using media access control based on reservation
US9125105B2 (en) * 2010-03-11 2015-09-01 Electronics And Telecommunications Research Institute Method and apparatus for allocating reservation resource for relay in wireless communication system using media access control based on reservation
US9485114B2 (en) * 2011-03-25 2016-11-01 Mediatek Inc. MAC abstraction sub-layer and MAC table for a communication system and related communication device
US20120243556A1 (en) * 2011-03-25 2012-09-27 Chia-Wei Yen MAC Abstraction Sub-layer and MAC Table for a Communication System and Related Communication Device
US9042550B2 (en) 2012-03-30 2015-05-26 Qualcomm Incorporated Methods and apparatus for base station assisted peer discovery through aggregation of expressions
US9258692B2 (en) 2012-03-30 2016-02-09 Qualcomm Incorporated Relay assisted peer discovery
US9191097B2 (en) * 2012-12-20 2015-11-17 Intel Corporation Techniques for transmitting data via relay communication links
US20140177514A1 (en) * 2012-12-20 2014-06-26 Shahrnaz Azizi Techniques for Transmitting Data via Relay Communication Links
US9398123B2 (en) * 2013-05-03 2016-07-19 Qualcomm Incorporated Systems and methods for aggregation of physical protocol data units on a wireless network
US20140328249A1 (en) * 2013-05-03 2014-11-06 Qualcomm Incorporated Systems and methods for aggregation of physical protocol data units on a wireless network
US9124337B2 (en) 2013-08-30 2015-09-01 Empire Technology Development Llc Repeater emulation to increase network range
US9350439B2 (en) 2013-08-30 2016-05-24 Empire Technology Development Llc Repeater emulation to increase network range
WO2015030789A1 (en) * 2013-08-30 2015-03-05 Empire Technology Development, Llc Repeater emulation to increase network range

Also Published As

Publication number Publication date
WO2005065035A3 (en) 2006-02-09
US7496064B2 (en) 2009-02-24
WO2005065035A2 (en) 2005-07-21
US20050249183A1 (en) 2005-11-10
US20050237964A1 (en) 2005-10-27
US20050237965A1 (en) 2005-10-27
US20050238025A1 (en) 2005-10-27
US20050238084A1 (en) 2005-10-27
US7936774B2 (en) 2011-05-03

Similar Documents

Publication Publication Date Title
US6108314A (en) Method, subscriber device, wireless router, and communication system efficiently utilizing the receive/transmit switching time
KR100814305B1 (en) Method, apparatus, and system for medium access control
US6459687B1 (en) Method and apparatus for implementing a MAC coprocessor in a communication system
US7496076B2 (en) Communication apparatus, communication method, and communication system
RU2403678C2 (en) Enhanced uplink dedicated channel - interface application protocol
US7522924B2 (en) Slot allocation apparatus and slot allocation method
CN101401358B (en) Method and system for channel access control for transmission of video information over wireless channels
ES2544570T3 (en) Methods and apparatus to provide planning information
CA2281453C (en) Methods and apparatus for retransmission based access priority in a communications system
CA2272594C (en) Method and apparatus for improving performance of a packet communications system
US7492789B2 (en) Method and system for dynamic aggregation in a wireless network
US9232554B2 (en) Method and system for enabling multi-channel direct link connection in a communication network, related network and computer program product
EP2443895B1 (en) Enhanced random access procedure for mobile communications
US6967944B2 (en) Increasing link capacity via concurrent transmissions in centralized wireless LANs
AU2005274003B2 (en) Method and system for controlling access to a wireless communication medium
RU2372721C2 (en) Distributed resource reservation in special wireless network
US6584080B1 (en) Wireless burstable communications repeater
AU2004302541B8 (en) Apparatus, and associated method, for selecting quality of service-related information in a radio communication system
US20100189056A1 (en) Communication method for wireless lans
US20050286451A1 (en) Connection identification allocating system and method in a broadband wireless access communication system
US8284739B2 (en) Method and apparatus for affiliating a wireless device with a wireless local area network
US20040072573A1 (en) Method for controlling a data stream in a wireless network
US9736818B2 (en) Method and apparatus for buffer status report in mobile communication system
KR101421773B1 (en) Methods and systems for scheduling resources in a telecommunication system
EP0994604A2 (en) Method and apparatus for random backoff based access priority

Legal Events

Date Code Title Description
AS Assignment

Owner name: WISAIR LTD., ISRAEL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KUPERSCHMIDT, YEFIM;HAY, RAN;REEL/FRAME:016738/0178

Effective date: 20050616