CN1149375A - Multiple subchannel flexible protocol method and apparatus - Google Patents
Multiple subchannel flexible protocol method and apparatus Download PDFInfo
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- CN1149375A CN1149375A CN95193340.XA CN95193340A CN1149375A CN 1149375 A CN1149375 A CN 1149375A CN 95193340 A CN95193340 A CN 95193340A CN 1149375 A CN1149375 A CN 1149375A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/18—Service support devices; Network management devices
- H04W88/185—Selective call encoders for paging networks, e.g. paging centre devices
- H04W88/187—Selective call encoders for paging networks, e.g. paging centre devices using digital or pulse address codes
Abstract
A communication system broadcasting over a plurality of subchannels comprises a resource controller unit having at least one of the plurality of subchannels serving as a control channel for addressing subscribers and directing them to receive messages or data on a set or a subset of the plurality of the subchannels, input means for sending messages to the resource controller unit, and a selective call receiver addressable by the resource controller unit, capable of receiving messages as directed by the resource controller on any of the subchannels and time slots directed by the resource controller.
Description
The present invention relates generally to communication system and area of agreement, particularly in multiplex subchannel, reconfigure the communication system and the agreement of resource.
Have now among many data communication systems are moving, they issue data communication receiver with message, as beep-pager.Many these systems use signaling protocol, and these agreements are utilized timeslice or transmission frame, and timeslice or transmission frame are distributed to beep-pager, thereby provide electricity-saving function and some other effective efficiency during normal transmission of messages.A kind of call terminal is provided in such system, and it is encoded to the data that receive so that be transferred to predetermined beep-pager during the transmission frame that distributes.At signaling protocol, for example in the POCSAG signaling protocol, each timeslice or transmission frame only allow to transmit two code words, and they can be two address code words, address code word and a message code word or two message code words.Because simple telephone number transmission also needs at least two message code words, so the digital massage transmission on average needs a field, can not the transport address code word thereby periodically cause during the transmission frame that distributes, this is because transmission frame is shared by the message code word relevant with the address code word of last transmission frame emission.
In some signaling protocols, the problems referred to above are eased by increasing the code word number that can in arbitrary transmission frame, transmit.But, but when choosing the transmission code number of words for transmission frame, when arbitrary specific transmission frame received the not enough message yardage that is used to transmit, such transmission frame must be filled idle code word usually.Before channel capacity reached maximum, this signaling protocol also was restricted on the number of the data communication reception power that can distribute or be operated in arbitrary given channel or beep-pager.By increasing transmission speed, more beep-pager can the adding system in, up to system's fullcharging once more, but this be with a large amount of be not cost with channel capacity.In addition, some other system can make bulk information (this information can be transmitted in the available transmission frame in channel, to obtain maximum message traffic by providing.) flexible system that reshapes solved the problems referred to above.(as in the application of this procuratorial well afoot and by the application numbers 07/891 of Schwendeman etc., the application numbers 07/891,503 that 363 are entitled as " data communication receiver with variable length messages input (Carry-on) " and Kuznicki etc. are entitled as such described in " data communication terminal that the variable length messages input is provided " etc.)。The flexible system that the bulk information launched in can be on the single channel available transmission frame is reshaped has been described in these applications.Along with the demand that bigger capacity and flow increase, also need system fully to use subchannel to provide than having bigger flow and flexibility by Kuznicki etc. with by the system that Schwendeman etc. declares mentioned above.
The communication system of broadcasting on a plurality of subchannels comprises a source control unit, input equipment and a selective call receiver.The source control unit has certain subchannel as control channel at least, and control channel is used for addressed user and and guides them to receive the whole of a plurality of subchannels or message or data that it is a part of; Input equipment is used for sending message to the source control unit; The selective call receiver can be received by source controller in the message of arbitrary subchannel transmission and the timeslice of being indicated by source controller by the source controller element address.
According to another aspect of the present invention, on a plurality of subchannels, receive and decoding may further comprise the steps to the method for the selective call message of a plurality of selective call receivers transmission with the interleaving block form of time division signal: receive the part of piece for first addressed messages at least and as first of control channel, in one of selective call receiver, first reception block of information that comprises address and Vector Message that decoding at first receives at least.Determine according to address and Vector Message where first addressed messages starts from and the length of first message then.At last, decoding follow-up piece is so that decipher first addressed messages on a plurality of subchannels, and first addressed messages can be present in the piece of a plurality of subchannels and the adjacent part between the part piece.
Fig. 1 is the electrical block diagram according to data transmission system of the present invention.
Fig. 2 is the electrical block diagram that is used to according to the present invention to handle with the terminal of message transfer information.
The sequential chart of used signaling protocol transformat is explained in Fig. 3～5th according to the present invention.
Fig. 6 and Fig. 7 are the sequential charts of explaining used synchronizing signal according to the present invention.
Fig. 8 is the electrical block diagram according to data communication receiver of the present invention.
Fig. 9 is the more detailed electrical block diagram according to data communication receiver shown in Figure 8 of the present invention.
Figure 10 is the electrical block diagram according to the alternate embodiments of data communication receiver of the present invention.
Figure 11 is the more detailed electrical block diagram according to data communication receiver shown in Figure 10 of the present invention.
Figure 12 is the electrical block diagram according to another alternate embodiments of data communication receiver of the present invention.
Figure 13～Figure 17 is the figure of the interpre(ta)tive system message capacity according to the present invention.
Fig. 1 is the electrical block diagram of the data transmission system 100 (for example a kind of paging system) of the most preferred embodiment according to the present invention.In this data transmission system 100, from telephone set, as provide the numeral data transmission system, perhaps from information entry equipment, deliver to call terminal 102 as the message that produces in the alphanumeric data terminal by public switch telephone network (PSTN), call terminal 102 is handled numeral or alphanumeric information, so that transmit by the one or more transmitters 104 that provide in the system.When using a plurality of transmitter, transmitter 104 is preferably simultaneously to data communication receiver 106 emission informations.The processing procedure of 102 pairs of numerals of call terminal and alphanumeric information is described below, and the agreement that is used for message transmission.
Fig. 2 is the electrical block diagram that is used to according to the present invention to handle with the call terminal 102 of control messages message transmission.Short message, the tone and the digital massage that for example can use voice control telephone machine (Touch-Tonetelephone) to write simply are connected to call terminal 102 by telephone interface 202 in the technical mode of knowing.Long message for example needs to use the alphanumeric message of data access device to use arbitrary modulator-demodulator host-host protocol of knowing to be connected to call terminal 102 by modulator-demodulator 206.When receiving a calling that has a certain message, the processing procedure of controller 204 control messages.Controller 204 is a microcomputer preferably, for example by the MC68000 of motorola inc's manufacturing or the equipment suitable with it, its carries out the various programs of programming in advance, is used to control such as utilizing the speech person that comes the notification call to import message or can receiving the terminal operations such as Handshake Protocol of message from the data access device.When receiving calling, controller 204 determines that according to the information that is stored in the customer data base 208 message that receives will be how processed.Customer data base 208 comprises the type of message relevant with the address, the information of being correlated with the state of data communication receiver, pays bill etc. as active or passive interruption, and is not limited to the information such as the address of distributing to data communication receiver.The data input pin 240 that links to each other with controller 204 is provided in the system, has been used for importing, upgrading and deletes the information that is stored in customer data base 208, monitor system performance and obtain information etc. such as bill information.
Customer data base 208 also comprises the information such as which transmission frame and which transmission phase place are assigned to data communication receiver, will describe in detail below.The message that receives is stored in the active page memory of storing with the formation form (active page file) 210.Equally, in page memory 210, provide formation.Active page memory 210 is dual-port first-in first-out random access memory preferably, although people understand the direct access storage device that also can use other, as hard disc apparatus.The information that is stored in each formation uses the timing information that is provided by real-time clock 214 or other suitable timing source periodically to recover from active page memory 210 under the control of controller 204.The information that recovers from formation is classified with frame number, then according to address, information and transmit required out of Memory above-mentioned information is organized together, and forms frame by frame sorting (batch) controller 212 according to message size.Established frame information is coupled to frame message buffer 216, and it temporarily stores the time of established frame information up to further processing and transmission.Frame with the Serial No. form in batches so that when present frame transmits, the next frame that will transmit is in frame message buffer 216, and next frame is being retrieved and in batches again.In the suitable moment, the established frame information that is stored in the frame message buffer 216 is transferred to frame encoder 218.Frame encoder 218 is encoded to required address and the message code word of transmission that below will describe to address and information.The address of having encoded becomes piece to deliver to block interleaver 220 then with the message code stroke, and block interleaver 220 preferably interweaves to 8 transmitted codewords simultaneously with the technical method of knowing.The reportedly defeated phase place of the radical of interlaced code that will obtain from each block interleaver 220 changes into serial data stream successively by turn then.Alternatively, if use a plurality of phase places, the code word that interweaves that obtains from each block interleaver 220 is transferred to phase multiplexing device 221 (shown in dotted line) successively so, and it becomes foregoing serial data stream with the information bit multiplex.Controller 204 then starts frame synchronization generator 222, and it is created in the synchronous code of the start-up portion emission of each frame transmission.Synchronous code under controller 204 control in serial data connector (splicer) 224 and address, information is multiplexing, and is produced as transmission thus and the message flow of appropriate formatization.This message flow then is sent to mission controller 226, and mission controller 226 is via allocated channel 228 emission message flows under controller 204 controls.Allocated channel 228 can be arbitrary allocated channel type of knowing, for example cable, radio frequency or microwave allocated channel, perhaps satellite distribution link.The message flow of distribution is transferred to one or more transmitter stations 104 according to the size of communication system.Message flow at first is transferred to the dual-port buffer 230 of temporary message flow before emission.In the suitable moment of being determined by timing and control circuits 232, message flow is recovered and is delivered to the input of 4 level FSK modulators 234 with 4 subchannels from dual-port buffer 230.Then, modulated message flow is coupled to transmitter 236 and transmits via antenna 238.
Fig. 3,4 and 5 is sequential charts of explaining the transformat of the signaling protocol that uses according to most preferred embodiment of the present invention.As shown in Figure 3, signaling protocol makes message can be transferred to data communications equipment by distributing the one or more frames in 128 frames (being labeled as frame 0 to frame 127), as beep-pager.Should understand, the actual frame number that in signaling protocol, provides can greater than or be less than above-mentioned value.Employed frame number is big more, and the battery life that can offer the data communication receiver that moves in the system is also just long more.Employed frame number is few more, and message can be lined up and to be transferred to the chance of the data communication receiver of distributing to arbitrary particular frame just many more, postpones or the required time of message transfer thereby reduce.
As shown in Figure 4, frame is made up of synchronous code (sync) and 11 information pieces (being labeled as piece 0 to piece 10).As shown in Figure 5, each information piece is made up of 8 addresses, control and code word datas, and they are labeled as word 0 to word 31 on each phase place.Therefore, each phase place in the frame allows transmission nearly 32 addresses, control and code word datas.(under the situation with 4 sub-channel addresss, each phase place in the frame allows transmission nearly 4 * 32 code words or 128 addresses, control and code word datas.) address, control and code word data (31,21) BCH code word of preferably having 32 additional digit pair check digit.Should understand that other code word also may be utilized as (23,12) Gray code.Different with the POCSAG signaling protocol of knowing, in the POCSAG signaling protocol, use first codeword bit to determine that the code word type is address or data, this specific character of address and code word data is not provided in according to the signaling protocol of most preferred embodiment of the present invention, but determines address and code word data in the position in the frame separately by them.
Fig. 6 and Fig. 7 are the sequential charts of explaining used synchronous code according to the present invention.Especially, as shown in Figure 6, synchronous code is made up of three parts: first synchronous code (synchronous 1), frame information code word (frame information) and second synchronous code (synchronous 2).As shown in Figure 7, first synchronous code by 0,1 alternately form bit synchronous first and the third part that is labeled as bit synchronization 1 and BS1 be provided, and provide the second and the 4th part of the benefit that is labeled as " A " and A " A " of frame synchronization to form.Preferably predefined unique (32,21) the BCH code word that high code word related reliability is provided of the second and the 4th part, this code word also is used to indicate the bit-rate of address and transmission of messages.Following table definition the employed bit-rate of signaling protocol.
Bit rate A value
1600bps A1 and A1
3200bps A2 and A2
6400bps A3 and A3
There are not definition A4 and A4
As above shown in the table, for address and transmission of messages pre-defined three kinds of bit-rates, although but according to the actual needs of the system also more or less bit-rate of predefine.The 4th A value also done pre-defined in order to using in the future.
(32,21) BCH code word that the frame information code word is preferably unique, it comprises the predetermined figure place as the identification frame number in data division, for example 7 codings arrive frame number 127 with definition frame number 0.
The structure of second synchronous code preferably and the structure similar of above-described first synchronous code.Yet and with the fixed data character rate, for example 1600bps (bps) transmission the first synchronous code difference, the data symbol rate that second synchronous code will be transmitted in arbitrary given frame with address and message is transmitted.Therefore, second synchronous code allows data communication receiver to obtain " meticulous " position and frame synchronization at transmission frame number on according to bit rate.
In a word, be made up of 128 frames according to the signaling protocol that embodiments of the invention are used, these frames comprise predetermined synchronous code, next are 11 data blocks being made up of 8 addresses, control and message code word on each phase place.Synchronous code energy recognition data transmission rate, and the code word data that transmits on different transmission rates for data communication receiver is given security synchronously.
The agreement of describing in people's such as people such as Kuznicki and Schwendeman application is referred to as the FLEX agreement at paging industry.FLEX allows communication system addressing and vector quantization (vector) message in single channel, and the present invention allows addressing and vector quantization message in the channel of communication system in N other subchannel of an embodiment, or in another embodiment, communication system allows addressing simultaneously and definite message that reaches in N the subchannel, and wherein N almost can be arbitrary integer.For the sake of simplicity, following example is explained embodiment with N=4, and still, claim scope of the present invention considers that certainly N can be an arbitrary integer among the embodiment.For ease of the reference in future, can addressing be referred to as 1 * 4 system, agreement or receiver with the embodiment that determines a channel in 4 subchannels, the embodiment of addressing simultaneously and definite four subchannels will be referred to as 4 * 4 systems, agreement or receiver.
Fig. 8 is the block diagram according to the embodiment of data communication receiver 106 of the present invention.Receiver 106 comprises the antenna 802 that links to each other with receiver module 804, and receiver module 804 links to each other with controller 816 with synthesizer 899 via 1 * 4 decoder module 895.Receiver 106 also comprises memory 890 and the technical input-output equipment of knowing (885 and 880).
Fig. 9 is the more detailed electrical block diagram according to data communication receiver 106 as shown in Figure 8 of the present invention.The core of data communication receiver 106 is controllers 816, its most handy microcomputer, and for example the MC68HC11 that is made by motorola inc realizes.The microcomputer controller--hereinafter be referred to as controller 816, receive and handle input from a plurality of peripheral circuits, as shown in Figure 9, and with the operation and the interaction of software routines control peripheral circuit.Using the microcomputer controller on processing and controlled function is that those of ordinary skill is known.
When at first power supply being added on receiver section, promptly when data communication receiver was opened first, clock rate was chosen as 128 times of clocks, promptly had the clock with 128 times of equal frequencies of above-mentioned lowest order speed 1600bps.128 times of clocks are produced by 128 times of clock generators 844, and as shown in Figure 8,128 times of clock generators preferably are operated in the quartz crystal control generator of 204.8KHz (KHz).The output of 128 times of clock generators 844 is connected to the input of frequency divider 846, and it is to the incoming frequency two divided-frequency and produce 64 times of clock 102.4KHz.The level detector that 128 times of clocks allow threshold level to extract in the circuit 808 detects spike and trough signal amplitude value asynchronously in the very short time, thereby produces the thresholding output signal value of modulation decoding required low (Lo), average (Avg) and height (Hi).After obtaining sign synchronization with synchronizing signal, controller 816 produces the 1 times symbol clock selection of second control signal to enable to be produced by symbol synchronizer 812, as shown in Figure 9.
Be connected to the input of symbol synchronizer 812 from the highest significant position (MSB) of 4 level decoders 810 output, and be provided at 4 level and detected the input of restore data that zero cross point produces in the restore data signal.Symbol synchronizer 812 preferably uses 64 times of clocks of the 102.4KHz that is produced by frequency divider 846.Be equipped with control signal (1600/3200) for symbol synchronizer 812, be used to the symbol transmission rate selection sampling clock speed of 1600 and 3200 symbol/seconds.Have 1600,3200 and 1 times of 6400bps speed and 2 times of symbol clocks produced and and data recovered signal Synchronization.
4 level binary translators 814 use 1 times of symbol clock, 2 times of symbol clocks and symbol output signals (MSB, LSB) and come the selector signal (2L/4L) of self-controller, to select and to be the conversion and control that the symbol output signal provides 2 level FSK data or 4 level FSK data.When selecting 2 level FSK data transaction (2L), the MSB that only is connected to parallel/serial transducer input exports selected (not shown).When selecting 4 level FSK data transaction (4L), the LSB and the MSB that are connected to parallel/serial transducer input are selected.
Turn back to Fig. 8, deliver to the input of synchronization code word correlator 818 and demodulation multiplexer 820 by the serial binary data flow of 4 level binary translators, 814 generations.The synchronization code word correlator has predetermined " A " word sync pattern, and it is recovered from coded stack 822 by controller 816 and is connected to " A " word correlator (not shown).In the scope that the synchronous mode that receives is allowing to make mistakes,, just produce output " A " or " A " and deliver to controller 816 with predetermined " A " when word sync pattern is complementary." A " that this is specific or " A " word sync correlation pattern are that the prefix of frame identification (ID) word provides frame synchronization, and have determined the bit-rate of subsequent message.
The serial binary data flow is also delivered to the input of frame word decoder (not shown), and the current frame number that is received by controller 816 is deciphered and indicated to the frame word decoder to the frame word.During synchronization acquistion, for example following receiver is connected for the first time, and power supply is loaded into receiver section by power-saving circuit 848, and it makes reception above-mentioned " A " synchronization character become possibility, and loading makes remaining synchronous code of processing become possibility continuously.Current frame number that controller 816 will receive and the given frame number tabulation that is stored in the coded stack 822 compare.If the current frame number that receives is different with given frame number, controller 816 produces the power save signal of delivering to power-saving circuit 848 inputs, does not temporarily power to receiver section.Stop power supply before next frame of distributing to this receiver is received, the power save signal that is produced by the controller 816 that links to each other with power-saving circuit 848 is the receiver section power supply during this period, makes to receive function and receive given frame.
Get back to the operating process of sync correlator now, controller 816 recovers " C " word sync pattern from coded stack 822, and delivers to " C " word correlator (not shown).In the error range that the synchronous mode that receives is allowing, be complementary, just produce output " C " or " C C " and deliver to controller 816 with predetermined " C " word sync pattern." C " that this is specific or " C " sync correlation word provide " accurately " frame synchronization (referring to Fig. 6 and Fig. 7) for the start-up portion of intraframe data part.
The start-up portion of real data part is set up by the controller 816 that generation is connected to the start of block signal (Blk Start) of word deinterleaver 824 inputs.
Alternatively, if use a plurality of phase places, start of block signal is connected to the input of word deinterleaver 824 and data recovery timing circuit 826 so.Start of block signal is used to produce and import the synchronous clock phase signal of information symbol.The clock phase signal output of phase place timing generator 826 is connected to the input of phase selector 828.During operation, the controller 816 transmission phase item that the restore data communication control processor is set from coded stack 822.The phase place that the phase item is transferred to controller 816 select output (
Select) and be connected to the input of phase selector 828.Provide with the corresponding phase clock of setting of transmission phase place and delivered to demodulation multiplexer 820, piece deinterleaver 824 and address and input end of clock separately such as data decoder 830,832 at the output of phase selector 828.Demodulation multiplexer 820 is used to select the binary code position relevant with the transmission phase place of setting, and delivers to the input of piece deinterleaver 824 then, and to each respective phase clock calculation (clock into) deinterleaving array.
The deinterleaving array is 32 * 32 bit arrays preferably, and it can be to carrying out deinterleaving with corresponding 32 interleaving address of transmission block, control and a message code word.The address code word of deinterleaving is delivered to the input of address correlator 830.Controller 816 reverts to the address pattern that data communication receiver is set, and address pattern is delivered to second input of address correlator.When the address pattern of setting with data communication receiver in the error range that arbitrary deinterleaving address code word is allowing is complementary, the information relevant with the address just deciphered by data decoder 832, and in a kind of technical mode of knowing decode results is stored in the message memory 850.After the information storage, controller 816 produces sensitive alarm signal.Sensitive alarm signal is audible ringing signal preferably, also can use other sensitive alarm signal, for example haptic alert signal, visual alarm signal etc. although we understand.Audible ringing signal links to each other with warning driver 834 by controller 816, and warning driver 834 is used to drive audible alarm equipment, for example loud speaker or transducer 836.The user can remove (override) alarm signal by using the user to import control 838 with the technical method of knowing.
After detecting the address relevant with data communication receiver, information is sent to the input of data decoder 832, and the information that the decoder handle is encoded is decoded as BCD or the ASCII character form that is suitable for storing with follow-up demonstration.The user imports the information that control 838 can recall (recall) storage by using the user, controller 816 recovers information from memory subsequently, and give information information so that be presented at display 842, for example on the LCD display to display driver 840.
With reference to Figure 10, provided another block diagram according to the embodiment of data communication receiver 106 of the present invention.Receiver 106 comprises the antenna 802 that links to each other with receiver module 804, and receiver module 804 links to each other with controller 875 with synthesizer 899 via 4 * 4 decoding modules 897.Receiver 106 also comprises memory 890 and the technical input-output equipment of knowing (885 and 880).In the embodiment of block diagram shown in Figure 10, except that looking, front end and the decoder that is used for 4 * 4FLEX receiver may more resemble the block diagram shown in Figure 11, and the receiver among receiver 106 and Fig. 9 is closely similar.
Ditto described, the receiver 106 among Figure 11 comprises the receiver module 804 that has antenna 802.Receiver links to each other with complicated synthesizer 900 with 316 by one group of blender 310,312,314.Give 4 * 4 decoding modules 897 from the mixed signal of one group of blender.This module preferably includes one group of band pass filter, wave detector, decoder and suitable technical amplifier of knowing etc.Each band pass filter (320,322,324 and 326) should be by ideal design, so that by suitable subchannel wave detector (330,332,334 and 336) and decoder separately (340,342,344 and 346) extremely separately.The output signal of decoding module 897 is handled with the method identical with Fig. 9 middle controller 816 by controller and data binner.Certainly, receiver 106 also comprises memory 890, user's input- output equipment 885 and 880 respectively.
With reference to Figure 12, provided another alternate embodiments of receiver 106 among Figure 10, it uses digital signal processor (DSP), for example the DSP56001 of Motorola or other chip suitable with its function.Receiver 106 among Figure 12 preferably includes the linear receiver 404 that has antenna 402.According to the speed of DSP, storage management and other handshaking procedure can be finished by DSP.In addition, can use optional controller 408, for example the controller of describing in the above-described embodiments.Ideal situation is in 4 * 4FLEX receiver, and DSP406 will handle 4 subchannels, and each channel comprises: threshold level extraction, level synchronization, level synchronization are relevant, data decoding and data combination etc.In addition, DSP will provide also that power saving, demultiplexing, deinterleaving, address are relevant, phase place is selected and function such as phase bit timing.Alternatively, these tasks of part also can comprise other task if desired, can be handled or are shared by controller 408.At last, receiver 106 comprises memory 410 and user's input- output equipment 412 and 414 usually respectively.
Figure 13～Figure 17 is graphic extension and the typical sequential chart relevant according to several embodiments of the present invention.Figure 13 explains the sequential chart of 1 * 4FLEX receiver.Vector and addressing information can find first subchannel (being expressed as subchannel # 0 here) usually.The part of subchannel # 0 or subchannel # 0 is also referred to as control channel or addressing channel.Vector Message will be represented the type of message that will be received (for example hexadecimal or alphanumeric, and whether this information will provide at single subchannel or in a plurality of subchannels) usually.Addressing information will indicate the specific message code font size that is about to begin in specific subchannel.When having a plurality of subchannel message, addressing information will point out to begin to provide specific subchannel, piece and the word of this message.In addition, the corner (Corners) in the addressing energy Indication message is with the validity of the transmission that gives information.These characteristics will become obvious day by day with reference to the description of Figure 18～21 below.
Like this, in Figure 13, vector among the subchannel # 0 and addressing information point to 1 * 4FLEX receiver so that specific message # 1 with code word in the subchannel 2 deciphered.Should understand that directed 1 * 4FLEX receiver can be deciphered the message # 1 in arbitrary available subchannel (in this example being 4), and the subchannel shown in the figure just not.Among Figure 14, the vector among the subchannel # 1 and addressing information point to that 4 * 4 FLEX receive so that repetition message # 1 in the different masses of each subchannel and code word is deciphered.Shown in Figure 13 and 14, should further notice: in planning category of the present invention, control channel can reside on arbitrary subchannel (middle subchannel and the highest or last subchannel), and is not subchannel # 0 among Figure 13 (minimum or first subchannel).
In Figure 15, in this case, vector points to 4 * 4FLEX receiver so that the message (message # 2, #2 and #3) of three in the different subchannels different sizes is deciphered with addressing information.For message # 1, message is deciphered in next time frame part of subchannel #0.Message # 2 is decoded in continuous " zone " part of subchannel # 1 and #2, and message # 3 is decoded in subchannel 3.
The explanation of Figure 16 is identical with Figure 15, but it has further explained piece and piece circle relevant with the present invention.As shown in figure 16, in piece circle of once decoding, preferably have 8 pieces.At subchannel # 0 at first by the addressing of 4 * 4FLEX receiver decoding and Vector Message with beacon receiver, so that at the message # 1 of piece 8 beginnings of subchannel # 0, decipher at the message #2 (piece 10 at subchannel # 2 finishes) of piece 6 beginnings of subchannel # 1 and at the message # 3 of piece 4 beginnings of subchannel # 3.
Certainly, the present invention has kept among the embodiment of Kuznicki etc. and Schwendeman etc. about sending and receive the flexibility of message with variable bit rate, and the present invention also allows receiver to send 1 * 4FLEX message and 4 * 4FLEX message and they are packaged into more effective 4 subchannel forms are provided, as shown in figure 17.In this case, receiver is shown as the decoding information in the piece 5, wherein has 11 in the frame, described in prior figures 3～7.(please note that these are not the available unique formats of plan in the claim of the present invention.) when receiver was deciphered preceding 5 (may be last piece of frame N-1 and preceding 4 of frame N), receiver was at first to appearing at vector and the addressing information decoding in second of first of frame N among the subchannel # 0 and the part in this case.It is 1 * 4 message that appears in the single subchannel (subchannel #0) that Vector Message will indicate preceding 4 message, and message #5～#8 is the 4 * 4FLEX message that runs through 4 sub-channel decodings.
In operation, 1 * 4 FLEX receiver that receives message #4 shown in Figure 17 (MSG4) will be deciphered piece # 0, and from the part 2 detect-message address of piece # 0, perhaps detect-message vector from the 3rd part.In addition, receiver may be deciphered and the further Vector Message of recovery from the 3rd part piece #1.(part 1 of piece # 0 preferably comprises the block message word).Then, 1 * 4FLEX receiver will be deciphered to extract wanted message piece # 2, #3, #4 successively.
Referring again to Figure 17, the 4 * 4FLEX receiver that receives message MSG5, MSG6, MSG7 and MSG8 will be deciphered to extract address and vector piece # 0 and piece # 1, will decipher from the beginning to the end message blocks according to Vector Message then.This equipment will be as requested, separates the mediation decoding data from a plurality of subchannels simultaneously according to the subchannel that is used for transmission of messages.
A certain single equipment can be deciphered all message among Figure 17 with the section (for example 5) of all size.This equipment preferably has the receiver that addressing and Vector Message in the piece 1 of subchannel # 0 and the piece 2 are deciphered, this receiver is deciphered message # 2 and part message #4 and part message #5 then, and then the more parts of message # 1, message #4, #5 and the beginning of message #6 are partly deciphered, then again the remainder of remainder, message #4, message #6 and the message #5 of message # 2 is deciphered.Along with the decoding of next piece section, the remainder of message #4 and message #6 is also decoded, and whole message #7 is also decoded.In addition, the part of message #8 is also decoded.At last, after next piece section was decoded, the remainder of message #8 was received the machine translation sign indicating number.
Why 8 message can be packaged in so effectively is because the flexibility of agreement together, and its allows agreement and " corner (Corner) " command in combination, so that reserve the position for single subchannel message (paging) in a plurality of subchannel message or paging.These performances and advantage will become obvious day by day by the description to 32 words (perhaps more, as to be actually 64 in the following example) form that is used for vector quantization and addressing receiver input message as shown in the table.
Table 1 hexadecimal/binary system vector (single subcarrier)
1 2 3 4 5 6 7 . . . . . . . . . . . . . . . . . . .?.?. . . 21?.?.?.?.?.?.?.?.?.?3132
Information parity check ck
x
0?x
1?x
2?x
3?v
0?v
1?v
2?v
3?b
0?b
1?b
2?b
3?b
4?b
5?b
6?b
7?b
8?y
0?y
1?m
0?s
0?P?P?P?P?P?P?P?P?P?P P
x
0?x
1?x
2?x
3?n
0?n
1?n
2?n
3?n
4?n
5?n
6?n
7?n
8?s
7?s
6?s
5?s
4?s
3?s
2?s
1?s
0?P?P?P?P?P?P?P?P?P?P P
V-vector type v
3v
2v
1v
0The single subcarrier of=0110-hexadecimal vector
The font size b that b-message begins
8b
7b
6b
5b
4b
3b
2b
1b
0(the 1-511 decimal system)
The subchannel that y-sets
M-0 refers to the message in this frame
1 refers to the message s in the future frame
7-s
1Comprise frame number
N-message font size n
8n
7n
6n
5n
4n
3n
2n
1n
0(the 1-511 decimal system)
The s-free time
X-standard 4 bit check signs
Table 1 has provided the hexadecimal/binary message form that uses 1 * 4Flex form, and its requires to indicate vector type (hexadecimal vector, single subchannel), message with initial font size, message font size in particular frame and the subchannel of setting.
Table 2 hexadecimal/binary system vector (a plurality of subcarrier)
1 2 3 4 5 6 7 . . . . . . . . . . . . . . . . . . . .?.?.?21?.?.?.?.?.?.?.?.?.?.?31 32
Information parity check Ck
x
0?x
1?x
2?x
3?v
0?v
1?v
2?v
3?b
0?b
1?b
2?b
3?b
4?b
5?b
6?b
7?b
8?b
9?b
10?d
0?d
1?P?P?P?P?P?P?P?P?P?P P
x
0?x
1?x
2?x
3?n
0?n
1?n
2?n
3?m
0?c
0?c
1?c
2?c
3?c
4?c
5?e
0?e
1?e
2?e
3 e
4?e
5?P?P?P?P?P?P?P?P?P?P P
V-vector type v
3v
2v
1v
0The a plurality of subcarriers of=1110-hexadecimal vector
B-message banner word=b
10b
9-subchannel, b
8b
7b
6b
5-piece, b
4b
3b
2b
1b
0-V
The corner number (6 bits/corner) that adds in the d-message field
N-message font size=n
10n
9n
8n
7n
6n
5n
4n
3n
2n
1n
0(the 1-511 decimal system)
n
10-n
4In message field
M-0 means the message in this frame
1 means the message c in the future frame
0-e
0Represent frame number
First corner information is in message field
First corner=c of C-
5c
4-subchannel, c
3c
2c
1c
0-piece
Second corner=e of e-
5e
4-subchannel, e
3e
2e
1e
0-piece
X-standard 4 bit check signs
Table 2 has been explained the hexadecimal/binary message form that uses 4 * 4Flex form, its require to indicate first word of vector type (hexadecimal/binary system, a plurality of subchannels), message with the position (comprising that this message is with the detailed information such as specific word in subchannel, piece and the piece of beginning) of beginning, message font size and in information frame and piece the further corner information of particular message institute parked position when receiver is deciphered of definition.As the message start information, corner information should comprise sub-channel positions, piece position and in some cases word location etc.Note, in scope of the present invention and aim, may exist than adopting " corner " order method more accurately and flexibly, and " corner " order is a kind of effective half measure.
Table 3 alphanumeric vector (single subchannel)
1 2 3 4 5 6 7 . . . . . . . . . . . . . . . . . .?.?.?.?21?.?.?.?.?.?.?. . . . . 31?32
Information parity check Ck
x
0?x
1?x
2?x
3?v
0?v
1?v
2?v
3?b
0?b
1?b
2?b
3?b
4?b
5?b
6?b
7?b
8?y
0?y
1?m
0?s
0?P?P?P?P?P?P?P?P?P?P P
x
0?x
1?x
2?x
3?n
0?n
1?n
2?n
3?n
4?n
5?n
6?n
7?n
8?s
7?s
6?s
5?s
4?s
3?s
2?s
1?s
0?P?P?P?P?P?P?P?P?P?P P
V-vector type v
3v
2v
1v
0The single subcarrier of=0101-hexadecimal vector
The font size b that b-message begins
8b
7b
6b
5b
4b
3b
2b
1b
0(the 1-511 decimal system)
The subchannel that y-sets
M-0 refers to the message in this frame
1 refers to the message s in the future frame
7-s
1Comprise frame number
The message font size n of n-in this frame
8n
7n
6n
5n
4n
3n
2n
1n
0(the 1-511 decimal system)
The s-free time
X-standard 4 bit check signs
Table 3 has provided the alphanumeric message form that uses 1 * 4FLEX form, and its requires to indicate vector type (alphanumeric, single subchannel), message with the font size of beginning, message font size in the particular frame and the subchannel of setting.
Table 4 alphanumeric vector (a plurality of subchannel) 1234567............ 21..... 31 32
Information parity check Ckx
0x
1x
2x
3v
0v
1v
2v
3b
0b
1b
2b
3b
4b
5b
6b
7b
8b
9b
10d
0d
1P P P P P P P P P P Px
0x
1x
2x
3n
0n
1n
2n
3m
0c
0c
1c
2c
3c
4c
5e
0e
1e
2e
3e
4e
5P P P P P P P P P P P
V-vector type v
3v
2v
1v
0The a plurality of subcarriers of=1101--hexadecimal vector
B-message banner word=b
10b
9-subchannel, b
8b
7b
6b
5-piece, b
4b
3b
2b
1b
0-V
The corner number (6 bits/corner) that adds in the d-message field
N-message font size=n
10n
9n
8n
7n
6n
5n
4n
3n
2n
1n
0(the 1-511 decimal system)
n
10-n
4In message field
M-0 means the message in this frame
1 means the message c in the future frame
0-e
0Represent frame number
First corner information is in message field.
First corner=c of c-
5c
4-subchannel, c
3c
2c
1c
0-piece
Second corner=e of e-
5e
4-subchannel, e
3e
2e
1e
0-piece
X-standard 4 bit check signs
Table 4 explained and used 4 * 4FLEX format words alphameric message format, its require to indicate first word of vector type (alphanumeric, a plurality of subchannel), message with the position (comprising that this message is with the detailed information such as specific word in subchannel, piece and the piece of beginning) of beginning, message font size and foregoing in information frame and piece the further corner information of particular message institute parked position when receiver is deciphered of definition.
The present invention describes in detail with the embodiment that is disclosed.But these embodiment only are examples, and the present invention is not limited thereto.The technical staff should understand, in the subsidiary defined the scope and spirit of the present invention of claims, also can carry out suitable variation and correction.
Claims (10)
1. the communication system of broadcasting on a plurality of subchannels comprises:
At least have a source control unit, be used for addressed user and control message or the data that they receive all or part of subchannel of a plurality of subchannels as the subchannel of control channel;
Be used for sending the input equipment of message to the source control unit; And
Can be by the selective call receiver of source control unit addressing, it can receive by source controller in the message of arbitrary subchannel transmission and the timeslice of being indicated by source controller.
2. the communication system of claim 1, it is characterized in that control channel also addressed user and control they in tdd frame and a plurality of subchannels whole or its a part of in, perhaps interior reception message or the data of preset time in the sheet of the part of one of a plurality of subchannels.
3. the communication system terminal of broadcasting on a plurality of subchannels comprises:
At least have a source control unit, be used for addressed user and control their reception message or data in a plurality of subchannels or its part as a plurality of subchannels of control channel;
Be used for sending the input equipment of message to the source control unit; And
Being used for addressing can be by the transmitter of the selective call receiver of source control unit addressing, and it can receive by the message of source controller control or by the timeslice of source controller control at arbitrary subchannel.
4. the terminal of claim 3 is characterized in that: control channel is present in minimum or first subchannel part, and is used for remainder and other subchannel addressing and definite message to lowest sub-channel.
5. the selective call receiver that can be received in the message of broadcasting on a plurality of subchannels comprises:
Receiver module can be received in the selective call signal on a plurality of subchannels, and the signal that receives is provided;
Decoding module, it links to each other with receiver module;
One group of blender, be used for the received signal that will obtain from receiver module and the injection signal that obtains from synthesizer mixed so that provide mixed signal to decoding module, decoding module comprises corresponding one group of band pass filter, wave detector and decoder that is used for a plurality of subchannels; And
Controller is used to control all decoding modules that link to each other with controller, synthesizer, sensitive warning device and display device.
6. can be received in the selective call receiver of the message of broadcasting on a plurality of subchannels, comprise:
Receiver module can be received in the selective call signal on a plurality of subchannels, and the signal that receives is provided;
Digital signal processor, it links to each other with receiver module, be used to that each subchannel provides that threshold level extraction, level synchronization, level synchronization are relevant, functions such as data decoding and data combination, and power saving, demultiplexing, deinterleaving are provided, the address is relevant, phase place is selected and general utility functions such as bit timing mutually.
7. method, be used in data communication terminal queuing message to be transmitted, this terminal has and is used for receiving message and the input of same distribution of messages to a plurality of transmission frames, and distributes to the subchannel of a plurality of data communication receivers for transmission, and said method may further comprise the steps:
Store the message that receives at first storage area;
Produce periodic timing signal;
Recover the message of storage from first memory according to the cyclic timing signal that produces;
The message of recovering in given transmission frame and the subchannel is arranged as second storage area with predetermined capacity of queue;
Monitor second storage queue capacity, and be that one or more subsequent transmission frames and subchannel are estimated capacity of queue;
When the message of determining to be stored in the second memory zone surpasses predetermined capacity of queue;
With the remaining message stores of having recovered in the 3rd storage area;
Produce the flag information of expression subsequent transmission frame and subchannel, during subsequent frame, the residue message that is stored in the 3rd storage area can be transmitted;
Emission is stored in message and the flag information in second storage area in given transmission frame and subchannel; And
Transmission is stored in the residue message in the 3rd storage area in the one or more subsequent transmission frames represented by flag information and subchannel.
8. one kind receives and the method for decoding selective call message, and this signal interleaving block form with time division signal on a plurality of subchannels is transmitted into a plurality of selective call receivers, may further comprise the steps in one of selective call receiver:
Be at least first message that is addressed and decipher block of information that comprises address and Vector Message that at first receives and the control channel piece that at first receives to small part;
Determine from address and Vector Message where first addressed messages originates in and the length of first message;
Decoding follow-up piece is to decipher first message that is addressed on a plurality of subchannels, and first message that is addressed can be present in the piece of a plurality of subchannels and the adjacent part of part interblock.
9. the method for the reception of claim 8 and decoding selective call message, it is characterized in that: the step of decoding follow-up piece is further comprising the steps of:
Separate simultaneously and be in harmonious proportion decoding by the information in a plurality of subchannels of addressing and Vector Message indication.
10. the method for claim 8, it is characterized in that: addressing and Vector Message comprise the start address and the message-length of a plurality of message, and its feature also is: a plurality of message can be crossed over a plurality of subchannels and a plurality of in a time frame.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23684194A | 1994-05-02 | 1994-05-02 | |
| US08/236,841 | 1994-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1149375A true CN1149375A (en) | 1997-05-07 |
Family
ID=22891198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95193340.XA Pending CN1149375A (en) | 1994-05-02 | 1995-05-01 | Multiple subchannel flexible protocol method and apparatus |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0759256A4 (en) |
| KR (1) | KR970703088A (en) |
| CN (1) | CN1149375A (en) |
| BR (1) | BR9507859A (en) |
| CA (1) | CA2189150A1 (en) |
| WO (1) | WO1995030316A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350959B (en) * | 2008-07-24 | 2011-04-20 | 中兴通讯股份有限公司 | Method and apparatus for implementing hetero-position treatment and backout of multipath information |
| CN101166054B (en) * | 2002-10-25 | 2013-03-06 | 高通股份有限公司 | MIMO WLAN systems |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8194770B2 (en) | 2002-08-27 | 2012-06-05 | Qualcomm Incorporated | Coded MIMO systems with selective channel inversion applied per eigenmode |
| US8134976B2 (en) | 2002-10-25 | 2012-03-13 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
| US8570988B2 (en) | 2002-10-25 | 2013-10-29 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
| US7986742B2 (en) | 2002-10-25 | 2011-07-26 | Qualcomm Incorporated | Pilots for MIMO communication system |
| US8169944B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Random access for wireless multiple-access communication systems |
| US8208364B2 (en) | 2002-10-25 | 2012-06-26 | Qualcomm Incorporated | MIMO system with multiple spatial multiplexing modes |
| US8320301B2 (en) * | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
| US20040081131A1 (en) | 2002-10-25 | 2004-04-29 | Walton Jay Rod | OFDM communication system with multiple OFDM symbol sizes |
| US7324429B2 (en) | 2002-10-25 | 2008-01-29 | Qualcomm, Incorporated | Multi-mode terminal in a wireless MIMO system |
| US7002900B2 (en) | 2002-10-25 | 2006-02-21 | Qualcomm Incorporated | Transmit diversity processing for a multi-antenna communication system |
| US9473269B2 (en) | 2003-12-01 | 2016-10-18 | Qualcomm Incorporated | Method and apparatus for providing an efficient control channel structure in a wireless communication system |
| US7466749B2 (en) | 2005-05-12 | 2008-12-16 | Qualcomm Incorporated | Rate selection with margin sharing |
| US8358714B2 (en) | 2005-06-16 | 2013-01-22 | Qualcomm Incorporated | Coding and modulation for multiple data streams in a communication system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE61705T1 (en) * | 1984-12-05 | 1991-03-15 | Ate Corp | PERSONAL CALL SYSTEM AND COMMUNICATION PROTOCOL. |
| CA1282837C (en) * | 1987-03-20 | 1991-04-09 | Tetsuya Hanawa | Apparatus for selecting control channel in mobile communication system |
| US4888793A (en) * | 1988-05-06 | 1989-12-19 | Motorola, Inc. | Phase correcting DPSK/PSK receiver with digitally stored phase correction derived from received data |
| US4949395A (en) * | 1989-07-07 | 1990-08-14 | Telefonaktiebolaget L M Ericsson | Method and arrangement for dynamically allocating time slots to connections in a digital mobile radio system |
| JPH0494228A (en) * | 1990-08-09 | 1992-03-26 | Matsushita Electric Ind Co Ltd | Dynamic channel allocation method |
| US5199031A (en) * | 1990-08-31 | 1993-03-30 | Telefonaktiebolaget L M Ericsson | Method and system for uniquely identifying control channel time slots |
| US5278890A (en) * | 1991-11-27 | 1994-01-11 | At&T Bell Laboratories | Paging arrangements in a cellular mobile switching system |
| US5282205A (en) | 1992-05-29 | 1994-01-25 | Motorola, Inc. | Data communication terminal providing variable length message carry-on and method therefor |
-
1995
- 1995-05-01 BR BR9507859A patent/BR9507859A/en not_active Application Discontinuation
- 1995-05-01 EP EP95918884A patent/EP0759256A4/en not_active Withdrawn
- 1995-05-01 KR KR1019960706164A patent/KR970703088A/en not_active Application Discontinuation
- 1995-05-01 WO PCT/US1995/005377 patent/WO1995030316A1/en not_active Application Discontinuation
- 1995-05-01 CN CN95193340.XA patent/CN1149375A/en active Pending
- 1995-05-01 CA CA002189150A patent/CA2189150A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166054B (en) * | 2002-10-25 | 2013-03-06 | 高通股份有限公司 | MIMO WLAN systems |
| CN101350959B (en) * | 2008-07-24 | 2011-04-20 | 中兴通讯股份有限公司 | Method and apparatus for implementing hetero-position treatment and backout of multipath information |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2189150A1 (en) | 1995-11-09 |
| EP0759256A1 (en) | 1997-02-26 |
| BR9507859A (en) | 1997-09-16 |
| KR970703088A (en) | 1997-06-10 |
| WO1995030316A1 (en) | 1995-11-09 |
| MX9605318A (en) | 1997-12-31 |
| EP0759256A4 (en) | 1999-03-31 |
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