EP1364495A1 - Local radio communication system - Google Patents
Local radio communication systemInfo
- Publication number
- EP1364495A1 EP1364495A1 EP02706889A EP02706889A EP1364495A1 EP 1364495 A1 EP1364495 A1 EP 1364495A1 EP 02706889 A EP02706889 A EP 02706889A EP 02706889 A EP02706889 A EP 02706889A EP 1364495 A1 EP1364495 A1 EP 1364495A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bases
- controller
- base
- information
- transmissions
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
Definitions
- the present invention relates to local radio systems. More particularly, the invention relates to a local radiocommunication system comprising: at least one central controller, several bases connected to the controller and controlled by said controller, - and several terminals each communicating with at least one of the bases, according to a master / slave process where the base plays a master role and the terminal a slave role at least after the establishment of a radio link between said base and said terminal, the bases communicating with the terminals according to the same local multiple access radio communication protocol by time division (for example, the BLUETOOTH protocol or the DECT protocol), this protocol providing, for each base, successive time slots during which are transmitted either an uplink information packet sent by a terminal to said base, or a downlink information packet sent by said base to said terminal, and said base being adapted to determine in advance and impose scheduled transmissions between said base and said terminal, these scheduled transmissions comprising scheduled downlink transmissions and scheduled uplink slots where the terminal is authorized to transmit an uplink information packet the base, and at least some of said bases being capable of interfering with each other
- the present invention aims in particular to overcome this drawback, by reducing the probability of interference between uplink information packets and downlink information packets.
- a radiocommunication system of the kind in question is characterized in that the different bases are adapted to transmit to the controller, in real time, at least chronological information relating to the transmissions provided by said bases, and in that said controller is adapted to determine whether interference is likely to occur between said scheduled transmissions, and to impose on the bases a chronology of said scheduled transmissions making it possible to avoid at least some of said interference.
- the controller makes it possible to predict and avoid most of the interference between uplink and downlink, taking into account the fact that the vast majority of downlink communications is planned in advance by the bases and that the vast majority of uplink communications is done with authorization from the bases.
- the controller is adapted to synchronize the different bases with one another, so that all of said bases transmit approximately during the same time slots and receive approximately during the same time slots (with the difference between the duration of the standard length information packets and the duration of the time slots, this difference being generally called guard time: in other words , we can tolerate or even impose slight differences between the start of the time slots of the different bases, provided that these differences are less than the aforementioned on-call time);
- the radiocommunication protocol provides for transmissions of information packets of standard length extending at most over a time slot, and transmissions of long information packets extending over a number greater than 1 of successive time slots, the controller being adapted to impose on the different bases that all the uplink information packets of standard length corresponding to all of said bases are transmitted during the same time slots alternately with other time slots in which all the information packets are transmitted descending standard length corresponding to all of said bases; the radio protocol provides that the terminal
- FIG. 1 is a schematic view of a building equipped with a radiocommunication system according to an embodiment of the invention
- FIG. 2 is a block diagram of the communication system of FIG. 1
- the Figure 3 is a graph representing the signals exchanged between two bases and two terminals for a short period of time.
- FIG. 1 represents a local radiocommunication system according to an embodiment of the invention, serving a room 2 such as a set of offices 3, or even a living room, or the like.
- This local radio network includes a central station 4 (CS) which communicates by radio with a plurality of fixed or mobile terminals 5, according to a local radiocommunication protocol such as the BLUETOOTH protocol, or the DECT protocol, or other protocol of TDMA type (multiple access by division temporal).
- a local radiocommunication protocol such as the BLUETOOTH protocol, or the DECT protocol, or other protocol of TDMA type (multiple access by division temporal).
- BLUETOOTH protocol or the DECT protocol
- TDMA type multiple access by division temporal
- These terminals 5 can: where appropriate, communicate with each other via the central station 4, or even communicate with the outside, still via the said central station 4 which has a telecommunications link 6 to a telecommunications network.
- the link 6 can be either a wired link, or a wireless link, for example a radio link.
- the central station 4 comprises several bases 7 (B1-B3) connected to a central controller 9 (CONTR.) Which controls said bases 7 as will be explained below and which, in the example shown , also serves as a hub and is connected to the above link 6 via an interface 10 (INT.) comprising for example a modem or the like.
- the controller 9 is an electronic circuit comprising in particular a microprocessor MP connected to a memory M.
- the bases 7, for their part, are fixed bases suitable for communicating with the terminals 5 according to the radio communication protocol chosen, for example the BLUETOOTH protocol.
- Such bases 7 are well known in the state of the art, as are the radio circuits of the terminals 5.
- the bases 7 are arranged in close proximity to each other, and preferably the central station 4 forms a single device.
- the bases 7 are advantageously (but not necessarily) each equipped with an array of antennas 8 with controlled directivity, the electronic circuits of each base 7 then being adapted, in a manner known per se, to phase the different antennas 8 of each base 7 relative to each other so as to create a spatial directivity in reception and in emission.
- each of the bases 7 communicates with only a portion of the terminals 5, which are assigned to it, within a cell, respectively Cl , C2, C3.
- the base Bl communicates with the terminals Tl, T2, T3, T4, T7, T8, and T10
- the base B2 communicates with the terminals T9, Tll, T12, T13 , T14, T15, and T16
- the base B3 communicates with the terminals T5, T6.
- the bases transmit to the controller
- the identities of all the terminals 5 belonging to the local radiocommunication system that is to say of all the terminals with which they communicate respectively (possibly, only updates of this list can be communicated to the controller 9 by the bases, for example when a base loses the link with a terminal or when a base comes into contact with a new terminal).
- the terminals T9 and T11 in the example shown in FIGS. 1 and 2 these terminals can, if necessary, stop communicating with the base 7 to which they were previously assigned and possibly communicate with a new base 7.
- Each base 7 communicates with the terminals 5 which are assigned to it according to a master / slave process where the base 7 plays the role of master as soon as the radio link has been established with the corresponding terminal 5.
- the base 7 controls the communication with each terminal 5 which is assigned to it, by controlling the use of successive time slots Si, Si + 1, Si + 2, etc. (see Figure 3), which are of constant duration ⁇ worth 625 ⁇ s and which are intended to each allow the transmission of a PI information packet (or two information packets in the particular case of packets transmitted in "PAGE mode "transmitting only an identity code from a base to the terminals, or even a portion of the PI information packet when it is a packet spanning several successive slots).
- each PI information packet includes an access code with a length of 72 bits, a header H with a length of 54 bits, and a useful part P, carrying for example voice and / or other information in digital form, of a length between 0 and 2745 bits.
- exchanges between bases and terminals are done for each base in a frequency channel chosen from 80 available channels, determined by each base according to a process random (the frequency used is therefore known to each base after this random determination).
- each PI information packet is a standard information packet included in a single time slot Si, of a duration slightly less than the duration ⁇ mentioned above, and the successive time slots are assigned alternately: to transmissions by the base of downward information packets to the terminals 5 corresponding to this base, and to receptions by the base of upward information packets transmitted by the terminals assigned to this base.
- the even time slots of each base 5 are assigned to the downlinks, that is to say the packets of downward information packets by this base, while the time slots of rank odd are assigned to the uplinks, that is to say the receptions by the base of uplink information packets coming from the terminals.
- the controller 9 preferably requires the different bases 7 to synchronize their time slots Si, Si + 1 , If + 2 (with possibly slight fortuitous or voluntary differences between the beginnings of the time slots of the different bases, less than the guard time, ie the difference between the duration ⁇ and the duration of a packet of standard information), also making sure that the ranks of the time slots of the different bases coincide with each other.
- This provision already makes it possible to avoid a part inter-channel interference, i.e.
- reception of the uplink information packet is made impossible given the much higher amplitude of the radio signal corresponding to the downlink information packet compared to the amplitude of the radio signal corresponding to the rising information packet.
- this arrangement is not sufficient to avoid a sufficient fraction of the interference between channels, since the bases 7 and / or the terminals 5 can transmit large information packets extending over several successive time slots, in this case three slots. or five time slots in the case of the BLUETOOTH radio protocol.
- each base 7 transmits in real time to the controller 9, the chronology of its scheduled transmissions and receptions, which is possible given the fact that the bases 7 themselves control the communication with the terminals 5 assigned to them (in particular, the uplink information packets are sent by the terminals in response to messages received from the bases).
- the controller 9 determines in real time whether there is a risk of interference between the transmissions and the transmissions provided for by the different bases 7. If there is such a risk of interference, the controller 9 imposes on the different bases 7 a chronology of the planned transmissions (transmissions and / or receptions) making it possible to avoid at least part of said interference and preferably all of this interference. For example, the controller 9 requires one or more bases 7 to postpone certain transmissions and / or planned reception of information packets.
- the controller can be adapted for: - when a base 7 must send a long information packet (spanning 3 or 5 time slots in the case of the BLUETOOTH protocol) to a terminal 5, prohibit other bases send to the other terminals 5 a downward information packet requesting a response during the transmission period of said long information packet, and when a terminal 5 must send a long information packet to a base 7, prohibit the others bases to send a packet of downward information for the duration of transmission of this long information packet.
- the controller 9 can give priority to certain categories of information transmission.
- the bases 7 can transmit to the controller 9 in real time, not only the chronology of their scheduled transmissions and receptions, but also the category of the information to be transmitted, so as to indicate to the controller 9 in particular whether the planned transmissions are intended for carrying voice signals.
- the controller 9 can be adapted to give priority to transmissions of voice signals, generally corresponding to telephone conversations, so as to avoid hatching effects of the transmitted voice signals.
- the controller 9 can possibly, at regular time intervals (for example, with a periodicity between 5 s and 1 h, or preferably between 5 and 30 minutes) follow a process of adjusting the antenna networks 8 of the bases 7 , by transmitting in turn a radio test signal to each of the bases 7 (in particular a signal in "PAGE" mode).
- each base 7 can then modify the directivity of its antennas 8 during these transmissions so as to minimize the signals received by the other bases 7, while ensuring that all of the bases 7 make it possible to communicate in good conditions with all of the terminals 5 of the room 2 considered.
- each terminal which receives a radio signal test sends a response to the base which emitted this signal, so that this base has the identity of all the terminals which are adapted to communicate with it in each of the antenna configurations tested.
- each base measures the level of the response signal it receives from each terminal that replied to it, or alternatively, the terminal measures the level of the signal it receives from each base and transmits this level to the base in its reply.
- the controller can determine the respective antenna configurations of the different bases making it possible to minimize the levels of radio signals received by the bases during the transmission of said test radio signals while ensuring that each terminal can communicate in good conditions with at least one base with these antenna configurations selected.
- the controller 9 imposes on the bases 2 the antenna configurations selected, and indicates to them the identities of the terminals which are respectively assigned to them.
- the controller 9 determines and stores base pairs 7 likely to interfere with each other, i.e. base pairs 7 such that the transmission by one of these two bases of a radio signal of downward information to a terminal 5 is likely to interfere with a uplink information radio signal emitted by another terminal 5 to the other of these two bases, thereby preventing the correct reception of the uplink information radio signal.
- the controller 9 can advantageously be adapted to delay at least a portion of the transmissions provided only between said bases likely to interfere with each other, to avoid interference.
- the controller 9 does not intervene on the transmissions provided between bases which are not likely to interfere with each other, which simplifies the work of said controller and improves its speed.
- the aforementioned measurements of the levels of radio signals received by the bases 7 during the adjustment phase could be carried out at the different frequencies accepted by the local radio communication protocol used, and the controller 9 can then determine and store pairs of frequencies capable of '' interfering mutually for each base pair 7 likely to interfere with each other.
- the controller 9 stores, for each pair of bases 7 capable of interfering with each other, pairs of first and second frequencies such that the emission by one of these bases of a radio signal at the first frequency, prevents good reception by the other base of a radio signal emitted by a terminal 5 at the second frequency.
- the bases can be adapted to transmit to the controller in real time, in addition to the aforementioned chronological information of the planned transmissions, forecast frequency information indicating how often the scheduled transmissions and receptions are to be carried out, and said controller is adapted to delay at least part of the transmissions provided only for said scheduled frequencies corresponding to a pair of frequencies capable of interfering between said bases capable of interfering with each other, to avoid interference.
- the bases 7 instead of comprising antenna networks 8, the directivity of which is controlled only by electronic means, the bases 7 could comprise one or more directional antennas 8 movable by electromechanical means.
- terminals 5 could be beacons fixed in certain particular locations of room 2 adapted to guarantee that all of said room does indeed enter the radio coverage of the local radiocommunication network 1.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0102725 | 2001-02-28 | ||
FR0102725A FR2821514B1 (en) | 2001-02-28 | 2001-02-28 | LOCAL RADIO COMMUNICATION SYSTEM |
PCT/FR2002/000664 WO2002069579A1 (en) | 2001-02-28 | 2002-02-22 | Local radio communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1364495A1 true EP1364495A1 (en) | 2003-11-26 |
Family
ID=8860547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02706889A Withdrawn EP1364495A1 (en) | 2001-02-28 | 2002-02-22 | Local radio communication system |
Country Status (4)
Country | Link |
---|---|
US (1) | US7110759B2 (en) |
EP (1) | EP1364495A1 (en) |
FR (1) | FR2821514B1 (en) |
WO (1) | WO2002069579A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7230931B2 (en) | 2001-01-19 | 2007-06-12 | Raze Technologies, Inc. | Wireless access system using selectively adaptable beam forming in TDD frames and method of operation |
US7002929B2 (en) | 2001-01-19 | 2006-02-21 | Raze Technologies, Inc. | Wireless access system for allocating and synchronizing uplink and downlink of TDD frames and method of operation |
US7173916B2 (en) | 2001-01-19 | 2007-02-06 | Raze Technologies, Inc. | Wireless access system using multiple modulation formats in TDD frames and method of operation |
WO2002071694A2 (en) * | 2001-03-05 | 2002-09-12 | Raze Technologies, Inc. | Wireless access system for allocating and synchronizing tdd frames |
FI20011359A0 (en) * | 2001-06-25 | 2001-06-25 | Nokia Corp | Reduction of interference |
JP3973092B2 (en) * | 2002-09-20 | 2007-09-05 | 本田技研工業株式会社 | Wireless network system and wireless communication method |
EP1526685A1 (en) * | 2003-10-24 | 2005-04-27 | International University Bremen Gmbh | Inter-Cell Interference mitigation technique using reservation indicators |
CN101129079B (en) * | 2005-02-25 | 2011-09-28 | 汤姆森许可贸易公司 | Radio communication device and radio communication system comprising same |
US20080112340A1 (en) * | 2006-11-09 | 2008-05-15 | Luebke Charles J | Wireless communication network and method of dynamic channel selection of a wireless communication network |
CN107710856B (en) * | 2015-06-05 | 2021-12-14 | 瑞典爱立信有限公司 | Communication apparatus and method for transmitting and decoding downlink information in the communication apparatus |
DE102017116273A1 (en) * | 2017-03-30 | 2018-10-04 | Riedel Communications International GmbH | Network device for an intercom network |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69024339T2 (en) | 1989-12-28 | 1996-08-14 | Nec Corp | Antenna system to reduce mutual interference when using the same channels |
US5949776A (en) * | 1990-01-18 | 1999-09-07 | Norand Corporation | Hierarchical communication system using premises, peripheral and vehicular local area networking |
GB2245455B (en) | 1990-06-18 | 1994-04-27 | Stc Plc | Mobile communications |
CA2023053C (en) | 1990-08-10 | 1994-06-28 | Frank D. Benner | Method for assigning telecommunications channels in a cellular telephone system |
IT1250515B (en) | 1991-10-07 | 1995-04-08 | Sixtel Spa | NETWORK FOR LOCAL AREA WITHOUT WIRES. |
WO1994009568A1 (en) | 1992-10-09 | 1994-04-28 | E-Systems, Inc. | Adaptive co-channel interference reduction system for cellular telephone central base stations |
US5594720A (en) * | 1993-11-24 | 1997-01-14 | Lucent Technologies Inc. | Multiple access cellular communication with dynamic slot allocation and reduced co-channel interferences |
FI99184C (en) | 1994-11-28 | 1997-10-10 | Nokia Telecommunications Oy | Method for allocating available frequency bands to different cells in a TDMA cellular radio system and a TDMA cellular radio system |
JP3349861B2 (en) * | 1995-03-17 | 2002-11-25 | 富士通株式会社 | Wireless LAN system |
US5598417A (en) * | 1995-04-28 | 1997-01-28 | Motorola, Inc. | Dynamic control of a data channel in a TDM wireless communication system |
US6097707A (en) * | 1995-05-19 | 2000-08-01 | Hodzic; Migdat I. | Adaptive digital wireless communications network apparatus and process |
US5726978A (en) | 1995-06-22 | 1998-03-10 | Telefonaktiebolaget L M Ericsson Publ. | Adaptive channel allocation in a frequency division multiplexed system |
US5839075A (en) | 1995-08-21 | 1998-11-17 | Ericsson Inc. | Methods and systems for allocating a cellular communications channel for communication between a cellular terminal and a telephone base station using received signal strength measurements |
US6038455A (en) * | 1995-09-25 | 2000-03-14 | Cirrus Logic, Inc. | Reverse channel reuse scheme in a time shared cellular communication system |
FI105740B (en) * | 1995-09-29 | 2000-09-29 | Nokia Mobile Phones Ltd | office communication |
US5844894A (en) | 1996-02-29 | 1998-12-01 | Ericsson Inc. | Time-reuse partitioning system and methods for cellular radio telephone systems |
US6091936A (en) * | 1996-03-29 | 2000-07-18 | Ericsson Inc. | Method and apparatus for reducing co-channel interference |
EP0817405A3 (en) * | 1996-06-28 | 2000-07-26 | Nec Corporation | Mobile communication system and control channel setting method in mobile communication system |
DE19630048C1 (en) | 1996-07-25 | 1997-04-17 | Siemens Ag | Operating method for TDMA radio communication system |
GB2317786B (en) | 1996-09-25 | 2001-05-30 | Motorola Ltd | Communication system with a deamformed control channel and method of system control |
CA2216761C (en) * | 1996-11-08 | 2002-01-01 | Lucent Technologies Inc. | Tdm-based fixed wireless loop system |
US5914946A (en) | 1996-11-08 | 1999-06-22 | Lucent Technologies Inc. | TDM-based fixed wireless loop system |
US6069885A (en) * | 1996-12-30 | 2000-05-30 | At&T Corp | Method and apparatus for providing high speed services using a wireless communications system |
WO1998042150A2 (en) | 1997-03-14 | 1998-09-24 | At & T Corp. | Downlink smart antennas for is-54/is-136 tdma systems |
US6021329A (en) | 1997-05-01 | 2000-02-01 | Telefonaktie Bolaget Lm Ericsson (Publ) | Method, and associated apparatus, for determining cell relationships in a radio communication system |
KR100234319B1 (en) * | 1997-05-02 | 1999-12-15 | 윤종용 | Co-channel interference detector and driving method therefor |
US6366840B1 (en) * | 1997-12-01 | 2002-04-02 | Daimlerchrysler Corporation | Vehicle instrument panel wireless communication |
EP1110344A1 (en) | 1998-09-04 | 2001-06-27 | AT&T Corp. | Combined channel coding and space-block coding in a multi-antenna arrangement |
WO2000019636A1 (en) | 1998-09-29 | 2000-04-06 | Triton Network Systems, Inc. | System and method of controlling co-channel interference in point to point communications |
DE19851701C2 (en) | 1998-10-30 | 2000-12-07 | Mannesmann Ag | Interference analysis for a cellular network with adaptive antennas |
US7184413B2 (en) * | 1999-02-10 | 2007-02-27 | Nokia Inc. | Adaptive communication protocol for wireless networks |
US7120431B1 (en) | 1999-02-12 | 2006-10-10 | Lucent Technologies Inc. | System and method for adjusting antenna radiation in a wireless network |
SE514264C2 (en) * | 1999-05-07 | 2001-01-29 | Ericsson Telefon Ab L M | A communication system |
-
2001
- 2001-02-28 FR FR0102725A patent/FR2821514B1/en not_active Expired - Fee Related
-
2002
- 2002-02-22 US US10/469,429 patent/US7110759B2/en not_active Expired - Fee Related
- 2002-02-22 WO PCT/FR2002/000664 patent/WO2002069579A1/en not_active Application Discontinuation
- 2002-02-22 EP EP02706889A patent/EP1364495A1/en not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO02069579A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2821514A1 (en) | 2002-08-30 |
US7110759B2 (en) | 2006-09-19 |
WO2002069579A1 (en) | 2002-09-06 |
FR2821514B1 (en) | 2003-06-13 |
US20040116114A1 (en) | 2004-06-17 |
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