CN101171765A - Methods and apparatus for efficient digital broadcast signaling in a wireless communications system - Google Patents
Methods and apparatus for efficient digital broadcast signaling in a wireless communications system Download PDFInfo
- Publication number
- CN101171765A CN101171765A CNA2006800157641A CN200680015764A CN101171765A CN 101171765 A CN101171765 A CN 101171765A CN A2006800157641 A CNA2006800157641 A CN A2006800157641A CN 200680015764 A CN200680015764 A CN 200680015764A CN 101171765 A CN101171765 A CN 101171765A
- Authority
- CN
- China
- Prior art keywords
- base station
- information
- carrier
- carrier wave
- send
- 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.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
First and second transmitters transmit signals communicating the same information, e.g., program segment, but at different times. Different carriers may, but need not be, used by the different transmitters. If a wireless terminal can not recover broadcast segment information from one carrier, the wireless terminal can switch to another transmitter and recover the information, e.g., on another carrier, since the broadcasts are intentionally offset in time. In some embodiments, the timing is offset such that a single channel receiver is able to recover signals corresponding to the same program segment from two sources, and perform a decoding and information recovery using input from both sources, where recovery using input from a single source is not possible. Symbol level timing synchronization of base stations is not required thereby allowing for simpler implementations and/or lower overhead, as compared to systems which require base stations to be synchronized to the symbol timing level.
Description
Related application
[0001] the application require to submit on March 8th, 2005, on July 6th, 2005 submitted to and the U.S. temporary patent application S.N.60/659 of the exercise question of submitting on July 8th, 2005 for " METHODS ANDAPPARATUS FOR EFFICIENT DOWNLINK DIGITAL VIDEOBROADCAST SIGNALING IN AN OFDM WIRELESSCOMMUNICATIONS SYSTEM ", 509, S.N.60/696,847 and S.N.60/697,865 rights and interests all are incorporated herein by reference these temporary patent applications.
Technical field
[0002] the present invention relates to digital broadcasting, and more specifically, relate to the information broadcast such as video or audio signal is arrived by a plurality of users in the zone of one or more base station services.
Background technology
[0003] in some wireless communication systems, may expect via down link with digital video or such as the out of Memory signal broadcasting of radio display of broadcast to the mobile subscriber.Along with mobile node moves through system, the user of expectation mobile node can be to such as being received the decode by the continuous or subcontinuous programme signal of the TV programme of real-time decoding and demonstration.Used a kind of method is to be that base station contiguous in the system is broadcasted identical signal simultaneously synchronously with the timing between the base station transmitter, and described timing is controlled to the symbol rank synchronously.Different neighbor base stations is gone up the identical information that sends at identical fundamental tone of identical time (tone).This method has following shortcoming: require that high level symbol transmission makes the signal difference in time that receives from different base stations be no more than the sub-fraction of symbol transmission time periods regularly synchronously between the base station.
[0004] Fig. 1 is Figure 100, it shows an example, wherein, two neighbor base station (BS A 102, BS B 104) use an independent carrier frequency (C) to send identical signal simultaneously with identical sub-carrier frequencies such as fundamental tone, this signal carries modulation symbol, and this modulation symbol carries the digital broadcasting information bit behind the coding.In Fig. 1, mobile node (MN) 106 is positioned at the position equidistant with BS A 102 and BS B 104.About MN 106, as the S that is arranged about line 108 among Fig. 1
A110 and S
B112 is illustrated, from the signal A (S of BS A 102
A) 110 with from the signal B (S of BS B 104
B) 112 arrival simultaneously, wherein, line 108 is represented the equidistant points between two base stations (102,104).Here service range come index signal from any to another point, propagation time from the base station to the mobile node for example.May make the air line distance between signal propagation time and the point different such as the situation of reflecting object in the environment.Service range for convenience of description.For the timing synchronization that will between the signal that receives from different base stations, keep, need closely carry out synchronously BS (102,104), and keep synchronization levels between the base station.S
A110 and S
B112 comprise the payload information (114,116) such as the modulation symbol numerical part respectively separately and are used for synchronous Cyclic Prefix part (CP) (118,120).Signal (S
A110 and S
B112) aloft merge on the link, and the signal of MN 106 after being combined receives the decode the recovering information bit.
[0005] Fig. 2 is Figure 200, and it has illustrated as MN 106 and two BS (102,104) when not being equidistant, the signal (S that is received
A110 ', S
B112 ') will trend towards losing relative to each other synchronously, the synchronization loss amount is the function of the signal path range difference between MN and each BS.From the angle of MN 106, S
B112 ' with respect to signal S
A110 ' postpones.MN 106 can recover the signal that is received, and in the signal that is received, for example, is no more than under the situation of Cyclic Prefix duration in the signal delay difference between two signals, exists at least some overlapping between Cyclic Prefix.S
A110 ' comprises payload portions 114 ' and CP part 118 '; S
B112 ' comprises payload portions 116 ' and CP part 120 '.Figure 200 has illustrated overlapping between CP 118 ' and the CP120 ' from the angle to two signals 110 ' and the 112 ' MN that receives 106.
[0006] Fig. 3 is Figure 30 0, and it has illustrated an example, and wherein, MN 106 is positioned at as upper/lower positions, and this position makes from S
A110 " Cyclic Prefix 118 " not with from S
B112 " Cyclic Prefix 120 " overlapping, thus S
A110 " and S
B112 " disturb, vice versa.Typically, because the deterioration of the signal quality that causes by this interference, so MN 106 can not recover and decodes this broadcast singal.Fig. 4 shows the method that this problem is remedied in a kind of known being used to.Increase the length of Cyclic Prefix, thereby allowed bigger overlapping region.Yet Cyclic Prefix has been represented the signal transport overhead, so any increase of circulating prefix-length is all corresponding to the minimizing of information bit throughput in the system.
[0007] signal timing that MN 106 among Fig. 3 and Fig. 4 is received compares.In Fig. 3, S
A110 " comprise payload information 114 " and CP 118 ", and S
B112 " comprise payload information 116 " and CP 120 ".In Fig. 4, S
A110 comprise payload information 114 and CP 118 , and S
B112 comprise payload information 116 and CP120 .Notice that CP (118 and 120 ) is longer than CP (118 " and 120 ") on the duration, yet payload information part (114 and 116 ) was lacked than payload information part (114 " and 116 ") on the duration.Bring overlapping between the CP (118 and 120 ) by the increase of represented CP duration of Fig. 4, the possibility that helps payload information successfully to recover, however this obtains the cost that payload reduces.
[0008] Fig. 5 is Figure 50 0, and it has illustrated that exemplary OFDM down link fundamental tone has fundamental tone at interval.With fundamental tone space increment f 514 show N exemplary downlink fundamental tone (fundamental tone 1 502, fundamental tone 2 504, fundamental tone 3 506, fundamental tone 4 508 ..., fundamental tone N-1 510, fundamental tone N 512).Can be used for like this, just more fundamental tone being inserted in the given frequency band to because a kind of method that the capacitance loss that bigger circulating prefix-length causes compensates is to make fundamental tone littler than other possibility situation at interval.This method still can be carried out under the situation of reliable reception all fundamental tones in supposition, the more information bit-envelope can be gone in the same frequency capability.Because motion may be distorted the signal frequency of institute's perception, make it be difficult to the gene of tight spacing is carried out reliable decoding, so should reduce fundamental tone method at interval for mobility, and be disadvantageous particularly for two-forty mobility user such as the user who in automobile, bus or train, travels.
[0009] considers above-mentioned discussion, be to be appreciated that, known such as digital video broadcasting the time broadcasting method generally include the some or all of following result who does not expect: (i) need regularly maintain the symbol transmission between the different base station very high-level synchronously, for example, maintain in the duration of Cyclic Prefix or duration still less; (ii) Cyclic Prefix needs longlyer relatively, and this causes the amount of overhead do not expected; And (iii) use narrow fundamental tone often to disturb with the reception and the processing of mobile device at interval, this may cause ambulant support not enough.In addition, when channel condition is inconsistent, may reduce quality easily.
[0010] considers problem discussed above, need new method and apparatus so that help in the OFDM wireless communication system downlink broadcasting such as the down link digital video broadcasting, these new method and apparatus reduce and/or have overcome one or more problems discussed above.
Summary of the invention
[0011] each embodiment concentrates attentiveness on transmitter installation and method at the method and apparatus that for example is used to send broadcast singal, described transmission broadcast singal such as TV, radio, advertisement and/or other program or information.Can use such as the transmitter installation of base station and realize these method and apparatus, this transmitter installation is in the identical information of different time broadcasting such as programme content.
[0012] according to the feature of each embodiment, receiver can be at different time from each base station received signal, and the information that will recover from the signal that is received subsequently merges, so that constitute the complete programs or the information set that will offer the user.
[0013] there are the various selections that are used to realize receiving and merging feature.If receiver can not successfully be decoded to the signal such as program segments that receives from first base station, it can turn to another base station so, and the signal that carries such as the identical information of program segments is received.After will merging from the signal that different base stations receive, the signal after receiver can be combined is successfully decoded, and recovers the information that is transmitted such as the broadcast program segmentation.
[0014] merge to select according to other, receiver can be to receiving the decode from the signal such as first transmitter of first base station, and subsequently, switches to receiving the decode from the signal such as another transmitter of second base station.Switching can be but need not be following situation is made response: owing to remove and shift to second base station from first base station such as the receiver of wireless terminal, so can not be to decoding from first signal of base station.Because the time difference between the transmission, so can recover the program segments or the out of Memory that can not successfully recover from another base station from a base station.
[0015] program segments of recovering the signal that receives from different base stations can be merged,, can provide it to the user of the equipment that the broadcasting fragment is received so that constitute complete programs such as TV programme.
[0016] method and apparatus of each embodiment provides large-scale possibility, and can use identical or different carrier frequency at the different transmitter of different time transmission same information content.
[0017] though can be regularly synchronously in cyclic prefix period with the base station, each embodiment does not need this synchronous fineness between the neighbor base station.In certain embodiments, the method of each embodiment can be used with contiguous base station transmitter, wherein, these base station transmitters and Cyclic Prefix duration is not carried out timing synchronously, and in some cases, even can in symbol duration, not carry out synchronously.
[0018] some features relate to transmitter installation, and other features relate to receiver apparatus.Can in the base station, still need in the base station, not realize transmitter.The receiver method and apparatus can be implemented in the wireless terminal, but do not need it is limited to this equipment, and these receiver method and apparatus can use and comprising wireless receiver and be included in the equipment of wired connection of another equipment or network.Each embodiment also relates to the data storage device such as memory devices, it stores one or more routines, can use these one or more routines to realize one or more steps and, described circuit can be used to realize one or more modules or device such as the circuit of integrated circuit (IC) chip.
[0019] though above each embodiment is being discussed in the summary, but be to be appreciated that, not all embodiment must comprise identical feature, and some above-mentioned feature is not necessary in certain embodiments but may is desired.In the detailed description hereinafter many supplementary features, embodiment and benefit are described.
Description of drawings
[0020] Fig. 1 shows an example, wherein, two neighbor base stations use an independent carrier frequency and the identical sub-carrier frequency such as fundamental tone to send identical signal simultaneously, and this signal carries modulation symbol, and this modulation symbol carries the digital broadcasting information bit behind the coding;
[0021] Fig. 2 has illustrated when mobile node and two base stations are equidistant, the signal that is received will trend towards losing relative to each other synchronously, wherein, the synchronization loss amount is the function of the signal path range difference between mobile node and each base station;
[0022] Fig. 3 has illustrated an example, wherein, mobile node is positioned at as upper/lower positions, the Cyclic Prefix of the feasible first base station down link signal that is received in this position is not overlapping with the Cyclic Prefix of the second base station down link signal that is received, thereby the down link signal that receives from first base station disturbs with the down link signal that receives from second base station, and vice versa;
[0023] Fig. 4 shows the method that the problem of Fig. 3 is remedied in a kind of known being used to, and wherein, increases the length of Cyclic Prefix, thereby allows bigger overlapping region; Yet, also increased expense;
[0024] Fig. 5 has illustrated that exemplary OFDM down link fundamental tone has fundamental tone at interval;
[0025] Fig. 6 has illustrated example wireless communications, and it supports the down link digital broadcasting such as radio (audio frequency) or video frequency program broadcasting;
[0026] corresponding to Fig. 6, Fig. 7 describes different base station carrier transmission and time relation;
[0027] Fig. 8 is the flow chart of illustrative methods, and this illustrative methods is operated wireless terminal, so that from a plurality of neighbor base station receiving downlink broadcast singal transmission, wherein, for each base station, uses different carrier frequency to transmit identical information;
[0028] Fig. 9 has illustrated another example system, and it is similar to the system of Fig. 6, yet the base station down link signal timing architecture that is used for Fig. 9 embodiment is with slightly different corresponding to the timing architecture of Fig. 6 embodiment;
[0029] corresponding to Fig. 9, Figure 10 describes different base station carrier transmission and time relation;
[0030] Figure 11 is the flow chart of illustrative methods, and this illustrative methods is operated wireless terminal, so that from a plurality of neighbor base station receiving downlink broadcast singal transmission, wherein, for each base station, uses different carrier frequency to transmit identical information;
[0031] Figure 12 has illustrated another feature of some embodiment; The different broadcast messages such as different video can be transmitted in the base station that use has other a plurality of carrier waves of different intensity scale on each different carrier wave;
[0032] Figure 13 has illustrated exemplary base;
[0033] Figure 14 has illustrated example wireless terminal;
[0034] Figure 15 is the figure of exemplary base;
[0035] Figure 16 has illustrated the example wireless terminal such as mobile node;
[0036] Figure 17 is the figure of example system, and wherein, each base station is supported in three carrier waves on the different capacity rank, and other order of power stage is different about two neighbor base stations;
[0037] Figure 18 is the figure of example system, wherein, three carrier waves in three sectors and each sector are supported in each base station, in each sector, three carrier waves are on different power ranks, and other order of power stage is different about two nearby sectors;
[0038] Figure 19 is the flow chart 1900 of example communication method;
[0039] Figure 20 is the flow chart 2000 of illustrative methods that the base station is operated;
[0040] Figure 21 is the figure such as the exemplary base of access node;
[0041] Figure 22 is the figure that several exemplary programme information groups have been described;
[0042] Figure 23 is the flow chart of illustrative methods that wireless terminal is operated;
[0043] Figure 24 is the flow chart of illustrative methods that wireless terminal is operated;
[0044] Figure 25 is the figure such as the example wireless terminal of mobile node;
[0045] Figure 26 is the figure such as the example communication system of the ofdm communication system of supporting programming;
[0046] Figure 27 is the flow chart of illustrative methods that wireless terminal is operated;
[0047] Figure 28 is the figure such as the example wireless terminal of mobile node;
[0048] Figure 29 is the flow chart of example communication method;
[0049] Figure 30 is the figure such as the example communication system of the ofdm communication system of supporting programming;
[0050] Figure 31 is the figure such as the exemplary base of access node.
Embodiment
[0051] method and apparatus of each embodiment can be used to provide the broadcast service such as TV or audio broadcasting, but also can be used to provide the multicast service, and wherein, multicast is a kind of broadcasting of particular type.The multicast service is very suitable for planning information is offered particular group of users rather than each user's signal transmission application.
[0052] method of each embodiment can be used to support the multiple service of wide region, it comprises such as every viewpoint service payment, wherein, can provide enough information so that their broadcast singal rather than other signal that inserts of paying the bill is decrypted for the payment client.Yet these methods are not limited to these embodiment, and can be used for not needing to subscribe to the situation that broadcast singal is received, decodes and uses with regard to authorizing.
[0053] Fig. 6 has illustrated wireless communication system 600, and it supports the down link digital broadcasting such as radio (audio frequency) or video frequency program broadcasting.Example system 600 comprises a plurality of base stations 602,604 (BS A, BS B), and the ofdm signal transmission is supported in each base station on such as at least two different carrier frequency of a plurality of carrier frequency C1, C2, C3.In the example of Fig. 6,3 carrier waves (C1, C2, C3) are supported with different transmission power level in each base station 602,604, as by represented around the circles of the different sizes of each base station 602,604, described different transmission power level is relevant with each carrier wave and be used for each carrier wave.As circle (606,608,610) was indicated respectively, base station A 602 went up the transmission down link signal at carrier wave (C1, C2, C3) on (high, medium and low) power rank.As circle (612,614,616) was indicated respectively, base station B 604 went up the transmission down link signal at carrier wave (C3, C1, C2) on (high, medium and low) power rank.The different power rank ordering that is associated with carrier wave is used in adjacent base station 602,604, makes adjacent base station generally not use identical power rank for identical carrier wave.Therefore, though adjacent base station 602,604 can use identical carrier wave C1 and C3, they will use different power ranks on carrier wave C1, C3.When another common carrier of using such as C2, each BS 602,604 can send it on identical power rank, perhaps is on the different power ranks at each BS it is sent.Example system 600 also comprises a plurality of wireless terminals such as mobile node.Exemplary MN 618 has been shown in the system 600, and exemplary MN 618 moves.Figure 13 and Figure 15 have illustrated exemplary base (1300,1500).Figure 14 and Figure 16 have illustrated example wireless terminal (1400,1600).
[0054] two different carriers such as C1 and C3 from two different adjacent base stations 602,604 transmit identical broadcast message at different time.The downlink broadcasting segmentation can be long such as about 20ms.Two adjacent base stations not strict synchronism to the symbol rank, other is synchronous but there is very thick level between two base stations, for example, be present in synchronously usually in the rank that is used to send outside the Cyclic Prefix of symbol, and even may BS 602,604 be synchronized within the symbol transmission time periods.Fig. 7 comprises Figure 70 0, and it has described different B S carrier transmission on the vertical axis 702 and the time relation on the trunnion axis 704.Figure 70 0 comprise exemplary BS A carrier wave C1 down link (DL) broadcast transmitted fragment sequence 706 (segmentation 1708, segmentation 2 710, segmentation 3 712 ..., segmentation N 714) and exemplary BS B carrier wave C3 downlink broadcasting transmission fragment sequence 716 (segmentation 1718, segmentation 2720, segmentation 3722 ..., segmentation N724).Fig. 7 illustrated from BS A, use carrier frequency C1 segmentation (708,710,712 ..., 714) exemplary transmission regularly and from BS B, use carrier frequency C3 segmentation (718,720,722 ..., 724) exemplary transmission regularly.Transmit identical information from different BS, but in the different time and use different carrier wave C1 and C3 to transmit respectively.For example, the downlink broadcasting segmentation 1708 of using carrier wave C1 to send by BS A 602 is carried identical information with the downlink broadcasting segmentation 1718 of using carrier wave C3 to send by BS B 604; Yet two segmentations have skew in time.In certain embodiments, two segmentations of carrying identical information were offset in time above a segmentation duration.In certain embodiments, time difference between initial can be from the end of transmission of the segmentation of first base station and from the transmission of the corresponding segment of adjacent base station, such as, less than interval one or several symbol transmission time periods of still separating of a split time, such as 2,3,10 or more a plurality of symbol transmission time periods, wherein, from the end of transmission of all DL in this way of the end of transmission broadcast segmentation 1708 of the segmentation of first base station, initial from the initial all broadcast segmentations of DL in this way 1718 of transmission of the corresponding segment of adjacent base station.In certain embodiments, two segmentations of carrying identical information were offset in time less than a segmentation duration, but separately such as 2,3,10 or more one or several symbol transmission time periods.
[0055] Fig. 8 is the flow chart 800 of illustrative methods, and it is operated wireless terminal, so that from a plurality of neighbor base station receiving downlink broadcast singal transmission, wherein, uses different carrier frequency for each base station and transmits identical information.Wireless terminal and neighbor base station can be the parts of exemplary ofdm communication system.Example wireless terminal can have an independent RF receiver chain.Operate in the step 801 initial, wherein, to carrying out initialization such as the WT of the exemplary MN 618 of Fig. 6 power supply and to it.Operation proceeds to step 802 and step 804 from step 801.In step 802, WT is operated so that carrier signal is periodically checked.For example, can the beacon signal that send from BS 602,604 be monitored, receive and estimate, and the first carrier that is identified is corresponding to first base station, second carrier wave that is identified is corresponding to the carrier wave of neighbor base station, wherein, second carrier wave that is identified carries identical broadcast message with the first carrier that is identified, but has timing offset.First carrier can be such as the carrier wave C1 corresponding to Fig. 6 BS A 602, and second carrier wave can be the carrier wave C3 corresponding to Fig. 6 BS B 604.
[0056] in step 804, WT is operated so that the downlink broadcast signals on the first carrier C1 is received, for example, the signal from the BS A 602 that uses carrier wave C1 is received.Next, in step 806, WT operated so that attempt the signal that is received is decoded.In step 808, if decoding is successful, operation continues to return step 804 so, so that other signals on the same carrier wave C1 are received.For example, if WT has enough channel qualities about the BS A 602 that uses carrier wave C1, situation just can be so so.Yet, if decoding is unsuccessful, operates from step 808 so and proceed to step 810, wherein, WT changes to second carrier wave such as carrier wave C3 with its receiver, and it is corresponding to BS B 604 downlink signal transmissions.
[0057] subsequently, in step 812, wireless terminal is operated so that transmission receives to the downlink broadcast signals on second carrier wave.In step 814, wireless terminal is attempted the signal that is received is decoded.If decoding is successful, operates so from step 816 and continue to return step 812, so that other signal transmission of using second carrier wave are received and handle; Yet,, operate from step 816 so and proceed to step 818 if decoding is unsuccessful.In step 818, wireless terminal is operated so that be converted to first carrier, and operation is returned step 804 so that other signal transmission are received.
[0058] Fig. 9 has illustrated another example system 900, and it is similar to the system of Fig. 6.Yet the base station down link signal timing architecture that is used for Fig. 9 embodiment pointed in Figure 10 is with slightly different at the pointed timing architecture corresponding to Fig. 6 embodiment of Fig. 7.In the example of Figure 10, to open from the same signal transmission intercal of each base station intentionally, make the wireless terminal receiver to receive identical segmentation from two neighbor base stations by the mode of between carrier wave, switching back and forth to carry out continuously, and information bit is recovered in certain embodiments, by merging processing procedure.
[0059] example system 900 comprises a plurality of base stations 902,904 (BS A, BS B), and ofdm signal is supported in each base station at least two different carrier frequency such as a plurality of carrier frequency C1, C2, C3.In the example of Fig. 9, as represented by the circles around the different sizes of each base station 902,904,3 carrier waves (C1, C2, C3) are supported with the different transmission power level that are associated with each carrier wave and be used for each carrier wave in each base station 902,904.Indicated respectively as circle (906,908,910), base station A 902 goes up with (high, medium and low) power rank at carrier wave (C1, C2, C3) and sends down link signal.Indicated respectively as circle (912,914,916), base station B 904 goes up with (high, medium and low) power rank at carrier wave (C3, C1, C2) and sends down link signal.Example system 900 also comprises a plurality of wireless terminals such as mobile node.Exemplary MN 918 has been shown, and exemplary MN 918 moves in system 900.
[0060] in the example of Figure 10, to open from the same signal transmission intercal of each base station intentionally, feasible wireless terminal receiver such as MN 918 can receive identical segmentations from two neighbor base stations by the mode of switching back and forth to carry out continuously between carrier wave, and information bit is recovered in certain embodiments, by merging processing procedure.
[0061] Figure 10 comprises Figure 100 0, and it has described different B S carrier transmission on the vertical axis 1002 and the time relation on the trunnion axis 1004.Figure 100 0 comprise exemplary BS A carrier wave C1 downlink broadcasting transmission fragment sequence 1006 (segmentation 1 1008, segmentation 2 1010, segmentation 3 1012 ...) and exemplary BS B carrier wave C3 downlink broadcasting transmission fragment sequence 1 014 (segmentation 1 1016, segmentation 2 1018, segmentation 3 1020 ...).Figure 10 illustrated from BS A, use carrier frequency C1 segmentation (1008,1010,1012 ...) exemplary transmission regularly and from BS B, use carrier frequency C3 segmentation (1016,1018,1020 ...) exemplary transmission regularly.Transmit identical information from different BS, but in the different time and use different carrier wave C1 and C3 to transmit respectively.For example, the downlink broadcasting segmentation 1 1008 of using carrier wave C 1 to send by BS A 902 is carried identical information with the downlink broadcasting segmentation 1 1016 of using carrier wave C3 to send by BS B904; Yet two segmentations have skew in time.In certain embodiments, two segmentations of carrying identical information were offset in time above a segmentation duration.In certain embodiments, time difference between initial can be from the end of transmission of the segmentation of first base station and from the transmission of the corresponding segment of adjacent base station, such as, less than a split time interval, but separately such as 2,3,10 or more one or several symbol transmission time periods, wherein, from the end of transmission of all DL in this way of the end of transmission broadcast segmentation 1 1008 of the segmentation of first base station, initial from the initial all broadcast segmentations of DL in this way 1 1016 of transmission of the corresponding segment of adjacent base station.In certain embodiments, for example, temporal separation makes WT 918 to switch back and forth between two carrier frequency.In certain embodiments, two broadcast segmentations for example transmit identical information via different carrier from different base stations, by merging from the information of described two broadcast segmentations, can recover the information that is being transmitted, otherwise, if can not obtain described segmentation from another base station from a base station, so just may not recover described information.
[0062] in certain embodiments, with the fragment sequence of given base station and carrier wave (such as BS A 902 and carrier wave C1) (such as 1008,1010,1012 ...) each corresponding DL broadcast segmentation is carried out at interval and interweaves, make also can by same wireless terminal receiver to from the corresponding segment sequence of using carrier wave C3 transmission such as the adjacent base station of base station BS B 904 (such as 1016,1018,1020 ...) receive and handle, described wireless terminal receiver comprises an independent RF chain that switches between carrier wave.
[0063] in certain embodiments, for given base station and carrier wave, can support a plurality of different broadcast channels, for example, each broadcast channel comprises the space segmentation sequence, and channel can interweave in time, for example, channel 1 broadcast segmentation 1, channel 2 broadcast segmentations 1, channel 3 broadcast segmentations 1, channel 1 broadcast segmentation 2, channel 2 broadcast segmentations 2, channel 3 broadcast segmentations 2, channel 1 broadcast segmentation 3, channel 2 broadcast segmentations 3, channel 3 broadcast segmentations 3 ..., channel 1 broadcast segmentation n, channel 2 broadcast segmentation n, channel 3 broadcast segmentation n.Can deliberately carry out timing slip, so that allow wireless terminal that the identical information from two or more sources is received and handles to the adjacent base station that uses different carrier on the different capacity rank, to send same broadcast channel.For example, when first base station of using carrier wave C1 began transmitting channel 3 segmentations 1, for example 2,3,10 or the more place of general time in several OFDM symbol transmission time intervals, second base station can begin transmitting channel 1 segmentation 1.
[0064] Figure 11 is the flow chart 1100 of illustrative methods, and this illustrative methods is operated wireless device so that from a plurality of adjacent base station receiving downlink broadcast singal transmission, and wherein, each base station uses different carrier frequency to transmit identical information.Example wireless terminal can have an independent RF receiver chain.Operation starts from the step 1101, wherein, the WT such as the exemplary MN 918 of Fig. 9 is powered and it is carried out initialization.Operation proceeds to step 1102 and step 1104 from step 1101.In step 1102, WT is operated so that carrier signal is periodically checked.For example, can monitor, receive and estimate beacon signal, and the first carrier that is identified is corresponding to first base station, second carrier wave that is identified is corresponding to the carrier wave of adjacent base station, this second carrier wave that is identified carries the broadcast message identical with the first carrier that is identified, but has time offset.First carrier can be such as the carrier wave C1 corresponding to the BS A 902 of Fig. 9, and second carrier wave can be the carrier wave C3 corresponding to the BS B 904 of Fig. 9.
[0065] in step 1104, WT is operated, so that the downlink broadcast signals on the first carrier is received, wherein, the down link signal on the described first carrier is all in this way from the signal of the BS A that uses carrier wave C1.Next, in step 1106, wireless terminal is operated, so that the copy of received signal is stored.Subsequently, in step 1108, WT is operated, the signal that is received is decoded so that attempt.In step 1100, if decoding is successful, operation continues to return step 1104 so that other signal on the same carrier wave is received so.For example, if WT has enough channel qualities about the BS A that uses carrier wave C1, situation just can be so so.Yet if decoding is unsuccessful, operation proceeds to step 1112 from step 1110, wherein, wireless terminal is operated, so that its receiver is changed to second carrier wave such as carrier wave C3, it is corresponding to BS B downlink signal transmissions.
[0066] subsequently, in step 1114, wireless terminal is operated, so that transmission receives to the downlink broadcast signals on second carrier wave.In step 1116, wireless terminal is operated, with the copy of storage from the received signal of step 1114.In step 1118, wireless terminal is attempted the signal that is received is decoded.If decoding is successful, operation continues to return step 1114 from step 1120, so that other signal transmission of using second carrier wave are received and handle; Yet if decoding is unsuccessful, operation proceeds to step 1122 from step 1120.
[0067] in step 1122, wireless terminal is operated so that the copy of the received signal of being stored is merged, the identical broadcast singal user profile that the copy representative of described received signal transmits from first and second base stations via first and second carrier waves, for example, the signal of storage in step 1106 and step 1116.Operation proceeds to step 1124 from step 1122.In step 1124, wireless terminal is operated, so that the received signal after attempting being combined is decoded.In step 1126, wireless terminal is operated, so that specify first and second carrier waves.Operation proceeds to step 1104 from step 1126, so that other downlink broadcast signals transmission is received and handles.
[0068] in certain embodiments, can between different carrier, jump such as mobile node at the mobile node of three or more cell edge, described different carrier is relevant with each different base station, the same numbers broadcast message of each carrier wave from same segment transmission such as the video bits of three different base stations, wherein, on different time, transmit described same segment, so that help the independent wireless terminal can be to receiving and handle from three signal of base station with enough timed separations.In certain embodiments, can to store from three signal of base station and merging so that recovering information, otherwise, only use from one or two signal of base station and can not recover described information.
[0069] in certain embodiments, the mobile node of three or more cell edge can with different carrier that different base station is associated between jump, independent base station can use the same segment from different base station to transmit identical digital broadcasting video information bit, wherein, on different time, transmit described same segment, so that help independent wireless terminal the signal from different base station to be received and handle with enough timed separations.In certain embodiments, can to store from three or more signal of base station and merging so that recovering information, otherwise, only use from one or two signal of base station and can not recover described information.
[0070] in certain embodiments, the information that will send in the down link segmentation is encapsulated, and consider the buffer capacity of WT and between carrier wave, switch the required time, on different carrier, it is sent.For example, can separate the identical information that sends with enough symbol transmission time, so that permission WT switches between carrier wave and information is received, and the time difference between the message transmission maintains in the buffer memory capacity of WT.By this way, may eliminate, reduce and/or minimize the program such as film or other video frequency program that is received is decoded and presented idle time in (for example, show).In certain embodiments, in order to receive purpose, notify wireless terminal when between carrier wave, to jump such as guide's TV allocated channel function corresponding to the information of specific program or broadcasting.
[0071] in certain embodiments, downlink video broadcast function and TV channel are similar.In certain embodiments, will be with selecting video capability to integrate with in the system.For example, via the uplink signal that sends to BS from WT, wireless terminal can tell network it want to see what broadcasting.
[0072] according to each embodiment, do not need between the base station synchronously accurately, other is enough synchronously to have coarse grade, for example, in many cases, the timing that is enough to allow WT in the time window that the WT buffer capacity is supported the information from different B S place to be received will be enough synchronously.Can use an independent RF receiver chain to realize wireless terminal.Yet, can also under situation about not clashing with WT, use WT with a plurality of receiver chains with independent receiver chain, this WT with a plurality of receiver chains allows WT once to receive information from two carrier waves.According to each embodiment, wireless terminal can receive the signal that uses different carrier still to transmit identical information from different base stations.Different base station deliberately carries out time migration to the transmission of information segmenting with equivalent information content, so that allow WT to switch between a plurality of base stations as required, receives identical information from a plurality of base stations.
[0073] Figure 12 has illustrated example system 1200, and it comprises a plurality of base stations and wireless terminal, and wherein, a plurality of base stations comprise BS A 1202, wireless terminal such as mobile node MN 1 1210, MN 2 1212, MN 3 1214.The different broadcast messages such as video can be transmitted in the base station that use has other a plurality of carrier waves of different intensity scale on each different carrier wave.Table 1216 illustrated for exemplary base 1202, carrier wave 1 corresponding to low quality video, carrier wave 2 corresponding to middle quality video and carrier wave 3 corresponding to high-quality video.Exemplary base A1202 uses three carrier waves (C1, C2, C3) to support downlink signal transmissions, and as indicated by circle (1204,1206,1208), three carrier waves (C1, C2, C3) are respectively on (high, medium and low) power rank.For example, can use the strongest carrier wave to transmit minimum quality or lowest resolution information bit such as C1.Therefore, each WT in the system (MN 11210, MN 2 1212, MN 3 1214) can receive low quality video.Carrier wave 2 can transmit information bit, when with this information bit with when the information bit of carrier wave 1 signal extraction merges, its permission is shown to the user with middle quality video signal.Therefore, carrier wave 2 transmits the vision signal that is known as enhancement layer.The information bit of quality video in providing when replacedly, carrier wave 2 can transmit independent the use.In this example, MN 2 1212 and MN 3 1214 can reception carrier 2 signals.MN 2 1212 can watch middle quality video image.Carrier wave 3 can transmit information bit, when with this information bit with when the information bit of carrier wave 1 signal and carrier wave 2 signal extractions merges, its permission is shown to the user with high quality video signal.The information bit of high-quality video is provided when replacedly, carrier wave 3 can transmit independent the use.In this example, MN3 1214 can reception carrier 3 signals.MN 3 1214 can watch the high-quality video image.Therefore, the quality of the image that receives can be the function of travelling carriage near the base station degree.
[0074] in certain embodiments, the base station can send specific location information.For example, BS can send the specific location information that is used for each broadcast area, and wherein, each broadcast area is such as corresponding to other annulus of specific transmission power level.Therefore, in the embodiment of Figure 12, BS 1202 can use the particular frequency carrier corresponding to each annulus to send in this annulus about restaurant, shop or other commercial information, and is so in some implementations really.For example, base station 1202 can on carrier wave C3, send the position in restaurant in the penetralia annulus, on carrier wave C2, send in the middle of in the annulus restaurant the position and on carrier wave C1, send the position in restaurant in the most external annulus.For example, the travelling carriage in the penetralia annulus is gone up the information that transmits to carrier wave C3 and is decoded, and therefore finds the restaurant in its ring.
[0075] position can receive the information that sends on the most weak carrier wave near the travelling carriage of base station very much, but may not receive and/or decode signal apart from base station travelling carriage very far away.In certain embodiments, the decoding failure can determine that frequency hopping arrives different carrier waves.If travelling carriage determines that it wants to receive meticulousr mass resolution information, frequency hopping so also can take place to different carrier.Specific location information can be with carrier wave from the most weak to the strongest classification.
[0076] in certain embodiments, BS can select when and whether to send more high-quality resolution rate information.
[0077] can not need to reduce fundamental tone at interval or do not need to use may be as several different methods and device as described in desired long loop prefix uses in the system.
[0078] Figure 13 has illustrated exemplary base 1300.Can be with base station 1300 as one of base station shown in Fig. 6, Fig. 9 or Fig. 12.Base station 1300 comprises antenna 203,205 and receiver transmitter circuitry 202,204.Transmitter circuitry is supported a plurality of different carrier frequency such as C1, C2, C3.Receiver circuit 202 comprises decoder 233, and transmitter circuitry 204 comprises encoder/packing device 235.Can be via receiver circuit 202 from wireless terminal receiver, video order request.By bus 230 circuit 202,204 is connected to I/O interface 208, processor (for example, CPU) 206 and memory 210.I/O interface 208 is connected to the internet with base station 1300 and/or such as other node of neighbor base station, and base station 1300 can to keep thick timing synchronous with other node.As mentioned above, timing between the base station does not need synchronously and is common not on the rank of Cyclic Prefix duration, and in many cases, or not perhaps even base station synchronization is not arrived some OFDM symbol transmission time periods with the duration of base station synchronization to Cyclic Prefix.Can be with the fractional form of second to measuring synchronously, and in some cases, even neighbor base station is not synchronized to one second.Memory 210 comprises routine, when carrying out this routine by processor 206, base station 1300 is controlled so that according to each embodiment operation.Memory comprises and is used for base station 1300 is controlled so that carry out the Communications routines 223 of various traffic operations that described various traffic operations are included in the information signal that sends on a plurality of carrier frequency such as video frequency program, radio broadcast program, multicast information etc.Memory 210 also comprises base stations control routine 225, and it is used to control the step that this method is realized in base station 1300.Base stations control routine 225 comprises scheduler module 226, it is used for transmitting and scheduling and/or communication resource distribution are controlled, and slightly to calibrate with the transmission of the neighbor base station with identical information, still deliberately message transmission to be dispatched from the mode that different base stations send identical information at different time.Therefore, module 226 can be used as scheduler.Memory 210 also comprises Communications routines 223 and control routine 225 employed information.Information 212 comprises program item 213,213 ', corresponding to each program such as video or audio program that will send.This program item can comprise programme information and alternatively about the information of time, and described programme information is such as the video data that will be sent out, and described information about the time is such as the date and time that will send program.
[0079] Figure 14 has illustrated the example wireless terminal such as mobile node 1400.Mobile node 1400 can be used as portable terminal (MT), and mobile node 1400 can receive, decode and export to program and/or the multicast information that receives from the base station.Wireless terminal 1400 comprises receiver module 302, transmitter module 304, processor 306, display 307, audio output apparatus 308 and the memory 310 that connects together via bus 309, wherein, each assembly can be intercoursed data and information by bus 309.For example, program can be TV programme or audio program.Mobile node 1400 comprises Receiver And Transmitter antenna 303,305, and it is connected respectively to Receiver And Transmitter circuit 302,304.Receiver circuit 302 comprises decoder 333, and transmitter circuitry 304 comprises encoder/packing device 335.Under the control of one or more routines of being stored in memory 310, processor 306 makes mobile node 1400 operations.For example, this comprises the programme information on the different carrier is received, switches between carrier wave, the programme information that receives from different carrier frequency is merged and decoded programme information is shown or exports.For the operation of mobile node 1400 is controlled, memory 310 comprises Communications routines 323 and mobile node controlling routine 325.Mobile node controlling routine 325 is responsible for the operation of control mobile node 1400.Memory 310 also comprises user/equipment/session/resource information 312, can visit and use these information to come implementation method and/or data structure.Memory 310 also comprises the program receiving buffer 327 that is used for the programme information that is received is stored, is used for the Video Decoder 329 that the compressing video information such as the MPEG-4 vision signal that is received is decoded and is used for the audio decoder 331 that the compressing audio signal that is received is decoded and be used for the program playback routine 333 to the decoding deutomerite purpose that is received shows and/or audio frequency output is controlled.
[0080] Figure 15 is the figure of exemplary base 1500.Exemplary BS 1500 can be any one in Fig. 6,9 or 12 exemplary base.Exemplary base 1500 comprises receiver 1502, transmitter 1504, processor 1506, clock module 1508, I/O interface 1510 and memory 1512, via bus 1514 these assemblies are connected together, wherein, can intercourse data and information by bus 1514 each assemblies.In certain embodiments, base station 1500 is fan zoning base stations of supporting a plurality of sectors, and base station 1500 comprises additional transmitters and/or receiver, and is right such as the independent transmission machine/receiver corresponding to each sector.For example, in the embodiment of the M sector of BS 1500, receiver 1502 and transmitter 1504 can be corresponding to sectors 1, and receiver 1516 and transmitter 1518 are corresponding to sector M.Receiver 1516 and transmitter 1518 can also be connected to bus 1514.A plurality of carrier waves can be supported in each sector.For example, in certain embodiments, each sector can use three different downlink carriers to support simultaneous transmission, and wherein, each in three downlink carriers is associated with a non-overlapped fundamental tone piece.
[0081] the receiver 1502 such as multi-carrier receiver relevant with sector 1 is connected to reception antenna 1520, via this reception antenna 1520 from wireless terminal receiving uplink signal.Receiver 1502 comprises decoder 1522, and it is decoded to the uplink signal that is received.The receiver 1516 such as multi-carrier receiver that will be associated with sector M is connected to reception antenna 1524, via this reception antenna 1524 from wireless terminal receiving uplink signal.Receiver 1516 comprises decoder 1526, and it is decoded to the uplink signal that is received.
[0082] the transmitter 1504 such as multicarrier transmitter relevant with sector 1 is connected to transmitting antenna 1528, will sends to wireless terminal such as the down link signal that comprises broadcast singal via this transmitting antenna 1528.Transmitter 1504 comprises encoder 1530, and it was encoded to downlink data/information before transmission.The transmitter 1518 such as multicarrier transmitter that will be associated with sector M is connected to transmitting antenna 1532, will send to wireless terminal such as the down link signal that comprises broadcast singal via this transmitting antenna 1532.Transmitter 1518 comprises encoder 1534, and it was encoded to downlink data/information before transmission.
[0083] memory 1512 comprises routine 1536 and data/information 1538.Processor 1506 executive routines 1536 and use data/information 1538 such as CPU so that the operation of base station 1500 is controlled, realize described method.I/O interface 1510 is connected to other network node such as other base station, router, aaa server, content providing server and/or internet with BS 1500.I/O interface 1510 is connected to backhaul network with base station 1500, its for use base station 1500 as the WT of its point of network attachment provide with this base station cell overlay area outside other node and/or being connected of information resources.In certain embodiments, service providing node can will send to BS 1500 such as the information program of the information of representing digital video broadcast stream by I/O interface 1510, program be broadcasted with the form of segmentation by a plurality of base stations such as neighbor base station.
[0084] routine 1536 comprises Communications routines 1540 and base stations control routine 1542.Communications routines 1540 is carried out BS 1500 employed various communication protocols.Base stations control routine 1542 comprises Scheduler module 1544, carrier wave/sector power rank control module 1546, program segments regularly transmission control module 1548 and timing synchronization module 1550.
[0085] Scheduler module 1544 is dispatched to up link and downlink communication segmentation with WT user.Some communication channel segmentation can be the traffic channel segment that is scheduled for one or more users.Some downlink communication segmentation can be the broadcast segmentation that comprises information program.In certain embodiments, can make some broadcast program at least can be used for any subscription wireless terminal user in the overlay area.In certain embodiments, can be via encrypting and selectable encryption key distribution, make some broadcast program at least can be used for one group of selected subscription wireless terminal user in the overlay area such as specific multicast group.Scheduler module 1544 comprises program segments/carrier wave/sector/communication sub Coordination module 1552.Each program that will broadcast is associated with at least one carrier frequency and a sector.Can be divided into a plurality of program segments to each program that will on down link, broadcast again, and module 1552 can with each program segments and down link regularly and one or more carrier frequency, one or more sector and one or more communication sub in the frequency structure be associated.In certain embodiments, use a plurality of communication sub to transmit a program segments as given sector and given carrier frequency.Can be at the coding of carrying out on the program segments basis and/or on the communication sub basis such as the programme information block encoding.
[0086] the downlink transmitted power rank of carrier wave/1546 pairs of transmitters of sector power rank control module (1504,1518) is controlled, and described power rank is associated with each carrier wave that transmitter (1504,1518) is supported.In certain embodiments, a plurality of power ranks are supported in some sector at least of BS 1500, and each different carrier frequency that the sector is supported power rank different with is associated, for example, and three carrier waves and three power ranks.Can have the different capacity rank that is associated with same carrier wave from nearby sectors same cells or different districts, the use same carrier wave.
[0087] operation of 1548 couples of BS 1500 of program segments timing transmission control module is controlled, keep timing sequence in the whole coordination timing sequence that makes the broadcast program segmentation between a plurality of neighbor base stations, make up, for example, keep with by the side-play amount in the corresponding fragment sequence of the program of two adjacent base stations transmissions, to receive this program by same MN at different time potentially.
[0088] timing synchronization module 1550 is with clock module 1508 co-operate, so that be that BS 1500 keeps regularly synchronously.Regularly synchronization module 1550 comprises thick synchronization module 1554 in base station/base station and BS synchronization module 1556.The thick synchronization module 1554 of BS/BS is operated so that keep near-synchronous between the neighbor base station, for example, its have such as 2,3,10 or more some OFDM symbol transmission time interval in stability.In certain embodiments, can deliberately be offset same program segmentation from neighbor base station broadcasting, make WT between different carrier frequency, to switch, and use different carrier frequency that two transmission of same segment are received with independent RF receiver.The thick synchronization module 1554 of BS/BS is kept such as tolerance limit between the base station relevant with the program segments transmission, the feasible broadcast singal that can use from a plurality of neighbor base stations.Base station synchronization module 1556 between the transmission of the signal of each sector, base station, keep such as less than an OFDM symbol transmission time interval high-level synchronously, make the OFDM symbol arrange, and/or arrange about different sectors about the different carrier in the same sector of BS 1500.
[0089] data/information 1538 comprises system's timing/frequency structure information 1558 such as ofdm system, base stations/sectors identifying information 1560, wireless terminal information 1562, user/equipment/session/resource information 1564, program segments timing information 1566 and corresponding to a plurality of information sets about each carrier wave/sector combination of attachment point, BS 1500 can be used for described attachment point the broadcasting (carrier wave 1 sector 1 data/information 1568, carrier wave N sector M data/information 1570) of down link signal.In certain embodiments, comprise one or more groups multiresolution video program information (multiresolution video frequency program 1 1572 ..., multiresolution video frequency program N 1574).In certain embodiments, comprise the programme information 1576 of many groups based on the geographical position.
[0090] for example, system's timing and frequency structure information 1558 comprise up link and downlink communication segmental structure, up link and downlink carrier frequency, bandwidth, the fundamental tone piece, fundamental tone at interval, sector auxiliary information, up link and down link fundamental tone frequency hop sequences, OFDM symbol transmission timing interval, OFDM symbol transmission timing interval is grouped into time slot, overtime crack, beacon slot, super time slot etc., about the timing controlled tolerance information of the different sectors of BS, about timing controlled tolerance information such as the different base station of neighbor base station.Base stations/sectors identifying information 1560 comprises base station identifier and/or sector marker.In certain embodiments, the beacon of periodic broadcasting and/or pilot signal are sent to WT with BS/ sector ID information 1560 via down link.The information 1562 of wireless terminal comprises the information about WT, and this WT may register for example sector/radio combinations to a network attachment point base stations.The information 1562 of WT can comprise that described WT seeks uplink signal is sent to base station 1500 as the part such as communication session such as being the interim WT active user ID that distributes of WT by BS 1500.In certain embodiments, at least some WT that the downlink broadcast signals such as the downlink broadcasting program is received do not need or they are not controlled oneself to be identified to the base station and not obtain active user ID.For example, at least some WT can subscribe to the ISP who is attached to BS 1500 some downlink broadcasting programs are received, can be for these WT provide for interval effectively decoded information preset time, and these WT can receive the decode the downlink broadcasting program subsequently.In certain embodiments, for example, at least some WT need register to BS 1500 before the downlink broadcasting programme information is received, so that interim effectively decoding and/or descrambling information are received, and/or be used for record keeping order such as the note expense.Program segments timing information 1566 comprises that the transmission that is used for each program segments that will broadcast by the base station carries out information regularly.For example, two adjacent base stations can be broadcasted identical program segments, but can be deliberately the broadcasting of different B S 1500 in the system regularly be offset.Program segments timing information 1566 also comprise with the down link of each program segments and base station regularly and the one or more communication sub in the frequency structure carry out related information.
[0091] program 1 1578 comprises a plurality of segmentations (segmentation 1 1551, segmentation N 1553); Program N 1580 also comprises a plurality of segmentations (segmentation 1 1555, segmentation N 1557).
[0092] carrier wave 1 sector 1 data/information 1568 comprises frequency information 1586, fundamental tone block message 1587, power level information 1588, program-related information 1589, data rate 1590, geographical domain information 1591 and resolution levels information 1592 in certain embodiments; Wherein, frequency information 1586 is such as employed downlink carrier frequency; Gene block information 1587 is such as the fundamental tone group that is associated with carrier frequency; Power level information 1588 is such as the high and low or middle power rank that is associated with carrier wave and sector; Program-related information 1589 is such as with which or which program identification information for using 1586 carrier waves that identify to broadcast by sector transmitter; The information bit data speed of data rate 1590 such as programme information, its by code rate, modulation scheme and the function in timing interval between the transmission program segments; Geographical domain information 1591 is such as the information that the physics overlay area that is associated with sector and carrier wave is discerned, and wherein, the expectation broadcast program arrives described sector and carrier wave; Resolution levels information 1592 is carried out related information with the sector with high and low or middle rank video capacity with carrier wave such as in comprising the embodiment of multi-level resolution video.
[0093] multi-level resolution video program 1 1572 comprise a plurality of different resolution video information segmentation collection corresponding to program 1 ((high resolution segment 1 1593 ..., high resolution segment N 1594), (intermediate-resolution segmentation 1 1595 ..., intermediate-resolution segmentation N 1596), (low resolution segmentation 1 1597 ..., low resolution segmentation N 1598)).Multi-level video frequency program N 1574 comprise a plurality of different resolution video information segmentation collection corresponding to program N ((high resolution segment 11599 ..., high resolution segment N 1501), (intermediate-resolution segmentation 1 1503 ..., intermediate-resolution segmentation N 1505), (low resolution segmentation 1 1507 ..., low resolution segmentation N 1509)).
[0094] based on the programme information 1576 of geography comprise a plurality of specific region segmentation collection ((regional 1 segmentation 1 1511 ..., regional 1 segmentation N 1513), (regional N segmentation 11515 ..., regional N segmentation N 1517)).The geographic area that provides such as the restaurant in this zone, theater, shop, parking lot, emergency facility etc. can be provided the different program segments collection of specific region.In certain embodiments, at least some programme contributions based on geography at a zone comprise the advertisement relevant with this zone.In certain embodiments, the program based on geography can be offered the wireless terminal user that the restaurant is found in expectation as service.In certain embodiments, can will mix based on the program of geography and programme contribution such as programme contribution 1 1568, described programme contribution can provide the video flowing such as film, TV play, Internet Broadcast etc.; And the information (for example: regional 1 segmentation 1 1511, regional 1 segmentation N) based on geography can be interweaved with coming in, as some commercial advertisement at least for sensing WT user.
[0095] Figure 16 has illustrated the example wireless terminal 1600 such as mobile node.Exemplary WT 1600 can be employed any exemplary WT in Fig. 6,9 or 12 example system.Wireless terminal 1600 can receive, decode and export program and/or the multicast information that receives from the base station.For example, program can be TV programme or audio program.Wireless terminal 1600 such as mobile node comprises Receiver And Transmitter antenna 1603,1605, and this Receiver And Transmitter antenna 1603,1605 is connected respectively to Receiver And Transmitter module 1602,1604.Receiver module 1602 comprises decoder 1633, and transmitter module 1604 comprises encoder 1635.Wireless terminal 1600 also comprises processor 1606, user I/O equipment 1608 and memory 1610.
[0096] user I/O equipment 1608 comprises user input device 1601, display 1607 and audio output apparatus 1609; Wherein, user input device 1601 such as keypad, keyboard, touch-screen, camera, microphone etc.; Display 1607 such as LCD display, LED, indicator light, CRT, flat-panel monitor, image projection equipment, video output feed lines/interface etc.; Audio output apparatus 1609 such as loud speaker, alarm, audio frequency output feed lines/interface etc.Via bus 1605 each assembly 1602,1604,1606,1608 is connected together with 1610, wherein, each assembly can be intercoursed data/information by bus 1605.The one or more routines that are stored in the memory 1610 are controlled, and make wireless terminal 1600 operations such as mobile node such as the processor 1606 of CPU.For example, comprising: to the programme information on the different carrier receive, switch between the carrier wave, the programme information that receives from different carrier frequency merged and demonstration or output decoder after programme information.For the wireless terminal 1600 such as mobile node is controlled, operational store 1610 comprises Communications routines 1623 and the wireless terminal control routine 1625 of carrying out the employed communication protocol of WT1600.
[0097] wireless terminal control routine 1625 is responsible for guaranteeing that wireless terminal 1600 operations and execution such as mobile node move described step about wireless terminal.Memory 1610 also comprises user/equipment/session/resource information 1627, can visit and use these information to realize described method and/or data structure.
[0098] wireless terminal control routine 1625 comprises that receiver control module 1629, transmitter control module 1631, I/O device control module 1633, carrier signal monitoring/estimation module 1635, carrier wave handover module 1637, segmentation merge module 1639, program receiving decoder module 1641 and program rebroadcasting module 1643.Program receiving decoder module 1641 comprises audio decoder module 1645, video decoder module 1647 and decoding estimation module 1649.In certain embodiments, video decoder module 1647 comprises multi-level resolution module 1651.Operation with 1629 pairs of receivers 1602 of the receiver control module of moving such as other module of module 1635,1637,1639 and/or 1641 and decoder 1633 is controlled, so that handle from BS receiving downlink signal and to it, for example, described down link signal comprises downlink broadcast signals, and this downlink broadcast signals comprises the information program that transmits with segmentation.1631 pairs of transmitters 1604 of transmitter control module and encoder 1635 are controlled to the operation that BS sends the uplink signal transmission.The operation of 1633 couples of user I/O of I/O device control module equipment 1608 is controlled, and can operate with program playback module 1643.Carrier signal supervision/estimation module 1635 can monitor the intensity and/or the quality of institute's reception carrier signal, for example, and to the beacon intensity rank, disturb rank, be decoded into power etc. and measure.Result and/or program segments timing information that carrier wave handover module 1637 uses from carrier signal supervision/estimation module 1635, determine when and whether between carrier wave, switch, make and can the program segments from one or more base stations be received.For information is recovered, segmentation merges 1639 pairs of a plurality of segmentations of module and merges, and for example, described a plurality of segmentations are corresponding to from using two different carrier frequency to transmit the segmentations of two different adjacent base stations of some same information content at least.Segmentation merges module 1639 and can also merge different segmentations, and for example, described different segmentations are carried the information of different increments so that realize higher video rank.Segmentation merges module 1639 can also be with the merging program segments information set of integrating with corresponding to a plurality of receptions and the segmentation that success is decoded of a program such as information 1657.
[0099] 1647 pairs of video decodes of video decoder module are controlled, and 1645 pairs of audio decoders of audio decoder module are controlled.When carrying out, 1651 pairs of operations about multi-level video selection, decoding, merging, processing etc. of multi-level resolution module are controlled.Decoding estimation module 1649 determines whether decoding is successful, and described decoding is such as decoding from the independent program segments decoding of base station or the merging of associating segmentation.In certain embodiments, the result of decoding estimation module 1649 is used to trigger following operation: switch to another carrier wave from another base station, trial merges so that attempt a plurality of corresponding segments and recovers recovering from the corresponding segments of adjacent base station and/or can not successfully recover an independent segmentation time.
[00100] the data/information in the memory 1610 of being included in comprise program receiving buffer 1653 corresponding to first carrier, corresponding to processing (decoding) program buffer 1655 of first carrier, corresponding to the merging program segments 1657 of program receiving, the downlink carrier information 1659 of current selection, selected be used to flow handle and/or the decoded audio of playback and/or video 1661, current BS/ sector ID information 1665, such as the system's timing/frequency structure information 1667 and the program contents information 1669 of ofdm system.
[00101] in certain embodiments, comprise a plurality of program receiving buffers, for example, corresponding to the program receiving buffer 1617 of N carrier wave.In certain embodiments, comprise the merging program buffer 1673 that merges corresponding to a plurality of carrier informations.In certain embodiments, comprise a plurality of (decoding) program buffer of handling, for example, corresponding to processing (decoding) program buffer 1675 of N carrier wave.In certain embodiments, comprise merging processing (decoding) program buffer 1677.
[00102] in certain embodiments, for example, wherein, the geographic area that the base station broadcast information points is specific comprises the reception information 1679 based on geography such as restaurant, hotel etc.In certain embodiments, for example, described embodiment supports multi-level video broadcasting, comprises video resolution class information 1681.Video resolution class information 1681 comprises the information that current video rank capacity is discerned, and wherein, currently described current video rank is received, and described current video rank is shown.
[00103] program receiving buffer (1653,1671,1673) is used to store program receiving information.Video decoder module 1647 is used for the reception compressing video information such as the MPEG-4 vision signal is decoded, and audio decoder module 1645 is used for the compressing audio signal that is received is decoded.Program playback module 1643 is used for the demonstration of receive decoding program and/or audio frequency output are controlled.
[00104] Figure 17 is the figure of example system 1700.System 1700 comprises a plurality of base stations (BS A 1702, BS B 1704) and a plurality of mobile node (MN 1 1718, MN 2 1720, MN N 1722).Base station (1702,1704) can be any one among the exemplary BS of Figure 13 or Figure 15, and MN (1718,1720,1722) can be in the example wireless terminal of Figure 14 or Figure 16 any one.BS A 1702 and BS B 1704 respectively support three carrier waves on the different capacity rank, and other order of power stage is different about two adjacent base stations.Figure 17 has illustrated that the selected power stage that is associated with the different carrier of adjacent base station has supplied the superimposed coverage area from adjacent base station indescribably, for example, wherein, can expect that wireless terminal can receive the decode the signal from adjacent base station.Multicarrier shown in Figure 17, many power rank embodiment are favourable in realizing the downlink broadcasting method.
[00105] BS A 1702 uses carrier wave C1 on the high transmit power level with overlay area of being represented by great circle 1706; BS A 1702 uses carrier wave C2 on the middle transmit power level with overlay area of being represented by centre circle 1708; BS A 1702 uses carrier wave C3 on the low transmit power level with overlay area of being represented by ringlet 1710.BS B 1704 uses carrier wave C3 on the high transmit power level with overlay area of being represented by great circle 1712; BS B 1704 uses carrier wave C1 on the middle transmit power level with overlay area of being represented by centre circle 1714; BS B 1704 uses carrier wave C2 on the low transmit power level with overlay area of being represented by ringlet 1716.Exemplary MN 1 1718 is in the overlay area that may be able to receive following signal and recover: use carrier wave C1 to send described signal from BS A 1702, and use carrier wave C3 to send described signal from BS B 1704.Exemplary MN 2 1720 is in overlay area that may be able to receive following signal and recover: use carrier wave C1 to send described signal from BS A 1702, and use carrier wave C3, C1 and the C2 any one to send described signal from BS B 1704.Exemplary MN N 1722 is in overlay area that may be able to receive following signal and recover: use carrier wave C1 and the C2 any one to send described signal from BS A 1702, and use carrier wave C3 and the C1 any one to send described signal from BS B 1704.
[00106] in certain embodiments, carry the identical information that sends at different time by two base stations such as the segmentation of program segments.In certain embodiments, a base station sends the segmentation A that carries information (A0, A1), and sends the segmentation B that carries information (A0, A2) such as another base station of adjacent base station.In this exemplary embodiment, the INFORMATION OF INCOMPLETE of being carried by segmentation A and B is identical.Yet it is very important that the identical information collection repeats in two segmentations, and in this case, the identical information collection is A0.
[00107] in certain embodiments, the timing offset of first base station is fixed, and wherein, described first base station is such as sending the BS A of segmentation and the BS B of transmission segmentation in carrier wave C3 in carrier wave C1, for example, the relative power relation that is similar between carrier wave C1 and the C3 is fixed.By this way, know when to turn to for example switch to which carrier wave such as the wireless terminal of mobile node, so that segmentation is decoded.
[00108] Figure 18 is the figure of example system 1800.System 1800 comprises a plurality of base stations (first base station 1802, second base station 1804, the 3rd base station 1806) and a plurality of mobile node (MN 1 1808, MN 2 1810, MN N 1812).Base station (1802,1804,1806) can be any one among the exemplary BS of Figure 13 or Figure 15, and MN (1808,1810,1812) can be in the example wireless terminal of Figure 14 or Figure 16 any one.Three carrier waves in three sectors and each sector are respectively supported in base station (1802,1804,1806), and in each sector, three carrier waves are on different power ranks, and other order of power stage is different about two adjacent base stations.Relative size by the circle that surrounds the base station is represented the power rank; Circle linear expression corresponding carriers partly in the given sector.Table 1832 expression: dotted line 1834 is used to represent to have the carrier wave f of 1.25MHz bandwidth
1, void/dotted line 1836 is used to represent to have the carrier wave f of 1.25MHz bandwidth
2, dotted line 1838 is used to represent to have the carrier wave f of 1.25MHz bandwidth
3Overlapping region between adjacent sectors and the sub-district occurs according to frequency and power rank relation selected and that use.Multicarrier, many power rank, many sectors embodiment are of value to the realization of downlink broadcasting method as shown in figure 18.
[00110] for the sector A 1814 of first base station 1802, carrier wave (f
1, f
2, f
3) use (high, medium and low) transmit power level respectively.For the sector B 1816 of first base station 1802, carrier wave (f
2, f
3, f
1) use (high, medium and low) transmit power level respectively.For the sector C 1818 of first base station 1802, carrier wave (f
3, f
1, f
2) use (high, medium and low) transmit power level respectively.
[00111] for the sector A 1820 of second base station 1804, carrier wave (f
1, f
2, f
3) use (high, medium and low) transmit power level respectively.For the sector B 1822 of second base station 1804, carrier wave (f
2, f
3, f
1) use (high, medium and low) transmit power level respectively.For the sector C 1824 of second base station 1804, carrier wave (f
3, f
1, f
2) use (high, medium and low) transmit power level respectively.
[00112] for the sector A 1826 of the 3rd base station 1806, carrier wave (f
1, f
2, f
3) use (high, medium and low) transmit power level respectively.For the sector B 1828 of the 3rd base station 1806, carrier wave (f
2, f
3, f
1) use (high, medium and low) transmit power level respectively.For the sector C 1830 of the 3rd base station 1806, carrier wave (f
3, f
1, f
2) use (high, medium and low) transmit power level respectively.
[00113] exemplary MN 1 1808 is positioned at such zone, in this zone, and probably can be to using carrier wave f from the first base station section C attachment point
3The signal that sends receives and recovers.Exemplary MN 1 1808 is positioned at such zone, in this zone, and probably can be to using carrier wave f from the 3rd base station section A attachment point
1The signal that sends receives and recovers.
[00114] exemplary MN 2 1810 is positioned at such zone, in this zone, and probably can be to using carrier wave f from the second base station section B attachment point
2The signal that sends and use carrier wave f from the second base station section C attachment point
3The signal that sends receives and recovers.Exemplary MN 2 1810 is positioned at such zone, in this zone, and probably can be to using carrier wave f from the 3rd base station section A attachment point
1The signal that sends receives and recovers.
[00115] exemplary MN N 1812 is positioned at such zone, in this zone, and probably can be to using carrier wave f from the first base station section C attachment point
3The signal that sends receives and recovers.Exemplary MN N 1812 is positioned at such zone, in this zone, and probably can be to using carrier wave f from the second base station section B attachment point
2The signal that sends receives and recovers.
[00116] Figure 19 is the flow chart 1900 of example communication method.Operate in beginning in the step 1902, wherein, a base station or a plurality of base station in the system that comprises first and second base station transmitters are powered and initialization.For example, example system can be the spread spectrum OFDM wireless communication system, and it comprises a plurality of base station transmitter and a plurality of wireless terminals that can receive and handle ofdm signal that can the broadcast downlink ofdm signal.Can carry out timing controlled to first and second base station transmitters, make between two base station transmitters, to exist thick rank regularly synchronously, but do not need to carry out timing controlled synchronously for the high-level timing that obtains and keep between two base stations.For example, if first and second base station transmitters use ofdm signal, and first and second base station transmitters are corresponding to different districts, so, not with the timing Synchronization Control between first and second base station transmitters at Cyclic Prefix in the duration.In step 1902, for example, can be sent to the base station or comprise a plurality of stations of first and second base station transmitters via the backhaul network program of will communicating by letter, wherein, described program comes from content supplier's service node.Backhaul network can comprise the wired and/or Radio Link such as fiber optic cables, microwave link etc.Replacedly, in step 1902, can be the initial part of described program be offered the base station or comprise a plurality of base stations of first and second base station transmitters, and for example when first and second base station transmitters are in the process of on the downlink radio channel part that is received before being broadcasted, other parts are provided on follow-up time, wherein, the wireless terminal such as mobile node can use downlink radio channel to receive.
[00117] operation proceeds to step 1904 and 1906 from beginning step 1902.In step 1904, can operate first base station transmitter, so that to sending corresponding to first segment purpose program segments.In step 1906, can operate second base station transmitter that is positioned at contiguous first base station transmitter, so that segmentation sends to first segment purpose same program as first base station transmitter, but first and second base station transmitters send the segmentation with same information content at different time.
[00118] in certain embodiments, first and second base station transmitters are arranged in contiguous single sector cell.In other embodiments, first and second base station transmitters are the sector transmitter that are arranged in nearby sectors, wherein, in having the system of multi-sector cell, use this communication means, and nearby sectors is the sector of same honeycomb or the sector of contiguous multi-sector cell.
[00119] in each embodiment, first base station transmitter uses first carrier to send corresponding to first segment purpose program segments, and second base station transmitter uses second carrier wave to send corresponding to first segment purpose program segments, and wherein, second carrier wave has the frequency different with first carrier.In some this embodiment, first base station transmitter sends on first transmission power level corresponding to first segment purpose program segments, and second base station transmitter sends on second transmission power level corresponding to first segment purpose program segments, wherein, second transmission power level is different with first transmission power level.
[00120] in certain embodiments, the step that second base station transmitter is operated comprises according to such as the fixing timing offset of timing offset different time being controlled, wherein, second base station transmitter is positioned at the position of contiguous first base station transmitter, so that send the segmentation of first segment purpose same program as first base station, but first and second base station transmitters send the fragment with same information content at different time; Described set time side-play amount has the corresponding timing offset tolerance limit of being kept by second base station transmitter.In some this embodiment, segmentation sends the OFDM symbol that use is sent out with Cyclic Prefix to information program, and first and second base station transmitters have transmit timing side-play amount between the program segments of same information content greater than duration of Cyclic Prefix.
[00121] in some OFDM embodiment, not with first and second base station transmitters synchronously at Cyclic Prefix in the duration, and the transmission deviation amount between the program segments with same information content that first and second base stations are sent surpasses the duration of symbol transmission time periods, wherein, described symbol transmission time periods comprises and is used for time that an OFDM symbol and corresponding Cyclic Prefix are sent.In some this embodiment, program segments transmission by first base station transmitter and by second base station transmitter time offset between the transmission of program segments with same program content is equaled to be used at least time quantum that program segments is sent, for example, equal first and second transmitters and be used for time quantum that program segments is sent, equal second transmitter and be used for time quantum that program segments is sent, perhaps equal first transmitter and be used for time quantum that program segments is sent.
[00122] in each embodiment, when second base station transmitter sends corresponding to first segment purpose program segments, first base station transmitter does not send corresponding to first segment purpose program segments, wherein, first and second base station transmitters send corresponding to first segment purpose program segments in staggered mode.In some this embodiment, first and second base station transmitters are on periodic basis, to send staggered program segments corresponding to the transmission time between the first segment purpose program segments less than 5 seconds mode.
[00123] in certain embodiments, first and second base station transmitters use a plurality of carrier frequencies to send signal separately, and adjacent base station transmitter uses different transmission power level for same carrier frequency.In some this embodiment, each carrier frequency is corresponding to different OFDM fundamental tone pieces, and the fundamental tone of different OFDM fundamental tone pieces is nonoverlapping on frequency.
[00124] in certain embodiments, first and second base station transmitters use three carrier frequencies to send signal separately; Adjacent base station transmitter uses different transmission power level for same carrier frequency; Each carrier frequency is corresponding to different OFDM fundamental tone pieces; The fundamental tone of different OFDM fundamental tone pieces is nonoverlapping on frequency, and for given transmitter, its three fundamental tone pieces are fundamental tone pieces continuous on frequency.
[00125] Figure 20 is the flow chart 2000 of the illustrative methods of the base station being operated according to each embodiment.This method begins in step 2002, in step 2002, carries out initialization to the base station power supply and to it.Operation proceeds to step 2004 from beginning step 2002.In step 2004, can operate so that use a plurality of carrier waves to send programme information the base station, on different power ranks, send signal corresponding to different carrier, described different carrier wave comprises the first carrier and second carrier wave.In certain embodiments, a plurality of carrier waves comprise at least three different carrier waves, and but step 2004 is included on each of three different carriers sends some identical programme information with different power ranks.
[00126] step 2004 comprises substep 2006 and 2008.In substep 2006, the base station is operated so that send programme information on first carrier, wherein, on the first power rank, send described first carrier.In substep 2008, the base station is operated so that send programme information on second carrier wave, wherein, on the second power rank different, send described second carrier wave with the first power rank.
[00127] in each embodiment, such as substep 2008, on second carrier wave, send programme information and comprise that sending information data rate with second sends programme information, it is different that the described second transmission information data rate and first sends information data rate, sends information data rate with described first and send programme information on first carrier.For example, in some this embodiment, the first power rank is lower than the second power rank, and first information data rate is higher than the second transmission information data rate.
[00128] in each embodiment, programme information comprises video frequency program, and such as substep 2006, is included on the first carrier and is sent to the small part video frequency program with first video resolution sending programme information on the first carrier.In some this embodiment,, be included on second carrier wave to be lower than the resolution transmission programme information that on first carrier, sends programme information resolution at transmission programme information on second carrier wave such as substep 2008.In certain embodiments, step 2004 is included on described first and second carrier waves and still sends some identical programme information at least with different resolution.
[00129] in certain embodiments, send programme information and be included in the identical programme information of transmission on first and second carrier waves, and sending the additional programme information that on described second carrier wave, does not send on the described first carrier.In certain embodiments, the transmission programme information is sending than the more programme information of programme information that is sending on described second carrier wave during the identical time cycle on the first carrier during being included in certain time cycle.
[00130] in certain embodiments, for example, because the higher power rank that is associated with second carrier wave, so second carrier signal covers the geographic area wider than first carrier zone, and described method also comprises: send the information about the business of first overlay area that is positioned at first carrier, and use second carrier wave to send information about the business outside described first overlay area but within the overlay area of described second carrier wave.
[00131] in each implements to stand, in such as substep 2008, the programme information that sends on second carrier wave is an elementary video information, and in such as substep 2006, the programme information that sends on first carrier is an enhancing information, described enhancing information can be combined with described elementary video program, so that provide than may only using the higher-quality video of the programme information that on second carrier wave, sends to present.
[00132] in certain embodiments, in such as substep 2008, the programme information that sends on second carrier wave is basic program, and in such as substep 2006, the programme information that sends on first carrier comprises that basic program adds additional content.In some this embodiment, additional content comprises at least one in the following content: be not included in the video content in the basic program, support not to be included in the additional language in the basic program, the text flow that will show with the elementary video content, the not advertisement that on second carrier wave, sends.
[00133] in certain embodiments, in such as substep 2008, the programme information that sends on second carrier wave is basic program, and can will combine so that additional content is provided with programme information on second carrier wave at the programme information that sends on the first carrier in such as substep 2006.In some this embodiment, additional content comprises at least one in the following content: be not included in the video content in the basic program, support not to be included in the additional language in the basic program, the text flow that will show with the elementary video content, and advertisement.
[00134] Figure 21 is the figure such as the exemplary base 2100 of access node 2100.Exemplary base 2100 comprises multi-carrier receiver parts 2102, multicarrier transmitter parts 2104, processor 2106, I/O interface 2108 and the memory 2110 that connects together via bus 2112, wherein, each assembly carries out data and information exchange by bus 2112.Memory 2110 comprises routine 2124 and data/information 2126.Such as processor 2106 executive routines 2124 of CPU, and use the operation of the 2126 pairs of base stations 2100 of data/information in the memory 2110 to control, and implementation method.
[00135] I/O interface 2108 is connected to other network node and/or internet such as router, other base station, programme content server, aaa server, router, Control Node, core node etc. with base station 2100.Like this, receive the programme information that to broadcast from each programme content server via I/O interface 2108.
[00136] multi-carrier receiver parts 2102 are connected to reception antenna 2103, the base station via described reception antenna 2103 from wireless terminal receiving uplink signal.Multi-carrier receiver parts 2102 comprise and are used for decoder 2114 that the uplink signal that some received is at least decoded.In certain embodiments, the uplink signal that is received comprises from registration request signal wireless terminal, request reception broadcast program.
[00137] multicarrier transmitter parts 2104 use at least the first and second carrier waves to send programme information under the control of transmitting and scheduling module 2132.In each embodiment, multicarrier transmitter parts 2104 send programme information with the first and second transmit information data speed respectively on first and second carrier waves, and first and second transmitted data rates are different.Multicarrier transmitter parts 2104 are connected to transmitting antenna 2105, and base station 2100 sends to wireless terminal via described transmitting antenna 2105 with down link signal.Downlink broadcast signals comprises the information of carrying one or more broadcast programs.In certain embodiments, multicarrier transmitter parts 2104 comprise one or more multicarrier transmitter modules 2116.For example, in certain embodiments, an independent base station transmitter sends on corresponding to the frequency such as a plurality of downlink carriers of three downlink carriers, and wherein, each downlink carrier is corresponding to a down link OFDM fundamental tone piece.In certain embodiments, multicarrier transmitter parts 2104 comprise a plurality of single carrier transmit machine modules (carrier wave 1 transmitter module 2118 ..., carrier wave N transmitter module 2120).
[00138] in one exemplary embodiment, multicarrier transmitter parts 2104 comprise independent one three carrier transmit machine module 2116, and wherein, base station 2100 is corresponding to the single sector cell that uses three downlink carriers.In one exemplary embodiment, multicarrier transmitter parts 2104 comprise three single carrier transmit machine modules, and wherein, base station 2100 is corresponding to the single sector cell that uses three downlink carriers.
[00139] in one exemplary embodiment, multicarrier transmitter parts 2104 comprise three three carrier transmit machine modules 2116, and wherein, base station 2100 is corresponding to three sector cells that use three downlink carriers.In one exemplary embodiment, multicarrier transmitter parts 2104 comprise nine single carrier transmit machine modules, and wherein, base station 2100 is corresponding to three sector cells that use three downlink carriers.
[00140] multicarrier transmitter parts 2104 comprise encoder 2122, are used for encoding via some information at least that downlink broadcast signals is broadcasted.In certain embodiments, each down link program is encrypted, for example, program is limited to only authorizes wireless terminal to visit.
[00141] routine 2124 comprises Communications routines 2128 and base stations control routine 2130.Communications routines 2128 realizes base station 2100 employed communication protocols.Communications routines 2128 is also handled each traffic operation, and for example, operation is controlled to I/O interface 2108, so that receive the programme content that will broadcast from the programme content server.
[00142] base stations control routine 2130 comprises transmitting and scheduling module 2132 and carrier power rank control module 2134.The transmission of 2132 pairs of programme informations on a plurality of carrier waves of transmitting and scheduling module is dispatched, and wherein, described a plurality of carrier waves are multicarrier transmitter parts 2104 employed first and second downlink carriers for example.Carrier power rank control module 2134 is used the data/information 2126 that comprises power level information 2144, so that the transmission power level to base station 2100 employed a plurality of downlink carriers is controlled, to keep corresponding to the power difference between first and second downlink carriers of multicarrier transmitter parts 2104.In each embodiment, carrier power rank control module 2134 is controlled about the first power rank that 2104 pairs of multicarrier transmitter parts are associated with first downlink carrier, makes it be lower than the second power rank that is associated with second downlink carrier.
[00143] data/information 2126 comprises system's timing and frequency structure information 2136, base stations/sectors identification information 2138, wireless terminal information 2140 and the user/equipment/session/resource information 2142 such as ofdm system.In each embodiment, the downlink channel structure comprises the segmentation such as the indexed segmentation in the loop structure, and wherein, described loop structure has at least some and is allocated for the indexed segmentation that transmits the downlink broadcasting programme information.System's timing and frequency structure information 2136 comprise downlink/uplink channel architecture information, downlink/uplink carrier information, downlink/uplink fundamental tone block message, downlink/uplink fundamental tone frequency hopping information etc.Base stations/sectors identification information 2138 comprises base station cell identification information, sector mark information and/or such as the sector type information corresponding to each multicarrier transmitter parts 2104.The information 2140 of wireless terminal comprises the information that is associated with a plurality of wireless terminals that use base station 2100.In certain embodiments, WT information 2140 comprises register information, security information and/or the charge information that is associated with the wireless terminal that the transmission program is received.User/equipment/session/resource information 2142 comprises and participates in and the communication session of peer node and/or user totem information, equipment identification information and the air link resources information that wireless terminal that receives such as broadcasting, program that is sent is being associated.In each embodiment, base station 2100 is supported broadcasting, program that is sent and the communication session that comprises two reciprocity wireless terminals simultaneously.In each embodiment, some broadcast program is towards the selected user group such as the multicast group with granted access at least.In certain embodiments, the broadcast singal transmission is supported in base station 2100, but does not support to comprise the communication session of two reciprocity wireless terminals.
[00144] data/information 2126 also comprises power level information 2144, resolution information 2146, programme information 2148 and transmit timing schedule information 2150.Power level information 2144 comprise a plurality of power level information (carrier wave 1 power level information 2154 ..., carrier wave N power level information 2156), carrier power rank control module 2134 uses described a plurality of power level information that multicarrier transmitter parts 2104 are controlled.In certain embodiments, power level information 2144 indicates, and sends multicarrier transmitter parts 2104 employed at least two different carrier waves on different power ranks.In certain embodiments, power level information 2144 indications send multicarrier transmitter parts 2104 employed each different carrier wave on different power ranks.Resolution information 2146 comprise a plurality of resolution levels of being associated with multicarrier transmitter parts 2104 employed each carrier wave (carrier wave 1 resolution information 2158 ..., carrier wave N resolution information 21 60).For example, in certain embodiments, the carrier wave N that is used for multicarrier transmitter module 2104 is corresponding to the information that is used for basic rank video resolution, and the carrier wave 1 that is used for multicarrier transmitter module 2104 is corresponding to the information that is used for high-level video resolution, such as other strengthens the video resolution rank with respect to main level.
[00145] programme information 2148 comprise corresponding to will be from the base station the 2100 one or more programs that send information (program 1 information 2162 ..., program X information 2164).Program 1 information 2162 such as video program information comprises a plurality of program 1 message parts, its corresponding to multicarrier transmitter parts 2104 employed transmission program 1 information (carrier wave 1 part 1 information 2166 ..., carrier wave 1 part M information 2170) ..., (carrier wave N part 1 ' information 2168 ..., carrier wave N part M ' information 2172) each carrier wave.
[00146] such as by transmitting and scheduling module 2132 employed and/or the transmitting scheduling information 2150 that produced comprise a plurality of program scheduling information sets corresponding to one or more programs that will send (program 1 schedule information 2174 ..., program X schedule information 2176).Program 1 schedule information 2174 comprise with multicarrier transmitter parts 2104 be used to send a plurality of program scheduling information sets that a plurality of carrier waves of program 1 are associated (carrier wave 1 program 1 schedule information 2178 ..., carrier wave N program 1 schedule information 2180).Carrier wave 1 program 1 schedule information 2178 comprise schedule information corresponding to a plurality of program 1 parts (carrier wave 1/ part 1 schedule information 2182 ..., carrier wave 1/ part M schedule information 2184).Carrier wave N program 1 schedule information 2180 comprise schedule information corresponding to a plurality of program 1 parts (carrier wave N/ part 1 ' schedule information 2186 ..., carrier wave N/ part M ' schedule information 2188).
[00147] geography information 2152 comprise a plurality of information sets of being associated with multicarrier transmitter parts 2104 employed different carriers (carrier wave 1 geography information 2190 ..., carrier wave N geography information 2192).Carrier wave 1 geography information 2190 comprises business information 2194, and carrier wave N geography information 2192 comprises business information 2196.For example, in certain embodiments, corresponding to multicarrier transmitter module 2104, first carrier such as second carrier wave ratio such as the carrier wave 1 of carrier wave N covers wider geographic area, and for example control via 2132 pairs of multicarrier transmitter modules 2104 of transmitting and scheduling module, so that the use first carrier sends the information about the business of first overlay area that is positioned at first carrier, and use the information of second carrier wave transmission about the business outside first overlay area but in the overlay area of second carrier wave.
[00148] Figure 22 is Figure 22 00, and it has illustrated several exemplary programme information collection (2162 ', 2162 ", 2162 ).Such as collection 2162 ', collection 2162 " or the programme information collection that collects 2162 can be Figure 21 the programme information collection (program 1 information 2162 ... program X information 2164) in any one.
[00149] exemplary programme information collection 2162 ' comprise a plurality of carrier wave 1 information sets (carrier wave 1 part 1 information 2166 ' ..., carrier wave 1 part M information 2170 ') and a plurality of carrier wave N information set (carrier wave N part 1 ' information 2168 ' ..., carrier wave N part M ' information 2172 ').Carrier wave 1 part 1 information 2166 ' comprises part 1 ' information 2202 and additional information 2204.Carrier wave N part M information 2170 ' comprises part M ' information 2206 and additional information 2208.In each embodiment, part 1 ' information 2202 is identical with carrier wave N part 1 ' information 2168 ', and part M ' information 2206 is identical with carrier wave N part M ' information 2172 '.In some this embodiment, about multicarrier transmitter parts 2104, the additional information of not using carrier wave N send to use carrier wave 1 to send (2204 ..., 2208).
[00150] exemplary programme information collection 2162 " comprise a plurality of carrier wave 1 information sets (carrier wave 1 part 1 information 2166 " ..., carrier wave 1 part M information 21 70 ") and a plurality of carrier wave N information set (carrier wave N part 1 ' information 2168 " ..., carrier wave N part M ' information 2172 ").Carrier wave N part 1 ' information 2168 " comprise elementary video programme information part 1 ' 2210, and carrier wave N part M ' information 2172 " comprise elementary video programme information part M ' 2222.Carrier wave 1 part 1 information 2166 " comprise elementary video programme information part 1 ' 2210 and additional content and/or enhancing information 2212.Additional content and/or enhancing information 2212 comprise that video strengthens at least one in information 2213, additional video content information 2214, language support information 2216, text flow information 2218 and the advertising message 2220.Carrier wave 1 part M information 2170 " comprise elementary video programme information part M ' 2222 and additional content and/or enhancing information 2224.Additional content and/or enhancing information 2224 comprise that video strengthens at least one in information 2223, additional video content information 2226, language support information 2228, text flow information 2230 and the advertising message 2232.
[00151] exemplary programme information collection 2162 comprise a plurality of carrier wave 1 information sets (carrier wave 1 part 1 information 2166 ..., carrier wave 1 part M information 2170 ), a plurality of carrier wave 2 information sets (carrier wave 2 parts 1 " information 2167 ..., carrier wave 2 part M " information 2171 ) and a plurality of carrier wave N information set (carrier wave N part 1 ' information 2168 ..., carrier wave N part M ' information 2172 ).Carrier wave N part 1 ' information 2168 comprise elementary video programme information part 1 ' 2238, and carrier wave N part M ' information 2172 comprise elementary video programme information part M ' 2246.Carrier wave 2 parts 1 " information 2167 comprise middle rank part 1 ' enhancing information 2236, and carrier wave N part M " information 2171 comprise middle rank part M ' enhancing information 2242.Carrier wave 1 part 1 information 2166 comprise high-level part 1 ' enhancing information 2234, and carrier wave N part M information 2170 comprise high-level part M ' enhancing information 2240.
[00152] in certain embodiments, make wireless terminal can realize strengthening relevant rank with the enhancing data that specific carriers is associated, described wireless terminal receives the decode programme information from the carrier wave that carries elementary video and these two carrier waves of carrier wave that carry enhancing information.For example, if wireless terminal couple carrier wave N relevant with program and carrier wave 2 information receive and successfully it decoded, wireless terminal can merge information so, presents so that obtain to present higher middle rank video than basic rank video.Continue described example, if wireless terminal couple carrier wave N relevant with program and carrier wave 1 information receive and successfully it are decoded, so wireless terminal can to information merge in case obtain than in the rank video present higher high-level video and present.
[00153] in certain embodiments, the enhancing data that are associated with each carrier wave make, wireless terminal can be realized main level when using with carrier wave that the elementary video program is associated other presents, and can realize that when using two carrier waves first strengthens rank, and can realize that when using three carrier waves the 3rd strengthens rank, etc.For example, think that programme information 2162 comprise corresponding to the information such as 3 carrier waves of N=3.If wireless terminal successfully receives the decode carrier wave 3 programme informations, just can show the elementary video program.If carrier wave 3 programme informations and carrier wave 2 programme informations are successfully received the decode, just can show middle rank and else strengthen program.If carrier wave 3 programme informations, carrier wave 2 programme informations and carrier wave 1 programme information are successfully received the decode, just can show high level enhancing program.In each embodiment, power rank and/or the information data rate relevant with carrier wave are such: expectation elementary video program has than the desired higher successful decoding probability that has of middle rank enhancing information, and rank enhancing information has than the desired higher successful decoding probability that has of high-level enhancing information in the expectation.
[00154] Figure 23 is the flow chart 2300 of illustrative methods that wireless terminal is operated.Illustrative methods begins in step 2302, in step 2302, carries out initialization to the wireless terminal power supply and to it.Operation proceeds to step 2304 from beginning step 2302.
[00155] in step 2304, wireless terminal is operated so that the signal corresponding to broadcast program is received, described signal such as ofdm signal comprises first signal and secondary signal, described first signal is corresponding to the first carrier and first transmitter, described secondary signal is corresponding to second carrier wave and second transmitter, wherein, first carrier is different with second carrier wave at least, and perhaps at least the second transmitter is different with first transmitter.In an example, first and second carrier waves are identical, and first and second transmitters are different.In another example, first and second carrier waves are different, and first and second transmitters are identical transmitters.In another example, first and second carrier waves are different, and first and second transmitters are different.
[00156] in certain embodiments, for example, in some embodiment that use an independent receiver chain, wherein, first and second carrier waves can be different, and step 2304 comprises substep 2308,2310,2312,2314 and 2316.
[00157] in substep 2308, wireless terminal be tuned to first carrier, and subsequently in substep 2310, wireless terminal receives first signal.Operation proceeds to substep 2312 from substep 2310.In substep 2312, wireless terminal checks whether first and second carrier waves are different.If wireless terminal determines that first and second carrier waves are different in substep 2312, so the operation proceed to substep 2314, wherein, wireless terminal once more be tuned to second carrier wave.Operation proceeds to substep 2316 from substep 2314.If wireless terminal determines that first and second carrier waves are identical in substep 2312, operation proceeds to substep 2316 so.In substep 2316, wireless terminal receives secondary signal.
[00158] operation proceeds to step 2305 from step 2304.In step 2305, wireless terminal merges first and second signals.In certain embodiments, first signal is basic programme signal, and secondary signal is an enhancing signal.Step 2305 comprises substep 2318.In substep 2318, wireless terminal uses the information in the secondary signal that the audio frequency that produces from first signal is presented strengthening one of at least presenting with video.In each embodiment, substep 2318 comprises at least one in substep 2320 and 2324.In substep 2320, wireless terminal increases the resolution of video image included in described first signal.In substep 2324, supplemental audio that wireless terminal will not present in described first signal or video content are integrated with during described audio or video presents.For example, in certain embodiments, additional content comprises at least one following content: the text flow and the advertisement that are not included in video content in the basic program, are not included in audio content in the basic program, support not to be included in additional language in the basic program, will show with described elementary video content.
[00159] process proceeds to step 2306 from step 2305.In step 2306, wireless terminal generates audio frequency and presents in presenting with video at least one from combined signal.
[00160] Figure 24 is the figure of the flow chart 2400 of illustrative methods that wireless terminal is operated.Illustrative methods in step 2402, is carried out initialization to the wireless terminal power supply and to it in step 2402 beginning.Operation proceeds to step 2404 from beginning step 2402.
[00161] in step 2404, wireless terminal is operated so that the signal corresponding to broadcast program is received, described signal comprises first signal and secondary signal, described first signal is corresponding to the first carrier and first transmitter, described secondary signal is corresponding to second carrier wave and second transmitter, wherein, first carrier is different with second carrier wave at least, and perhaps at least the second transmitter is different with first transmitter.In an example, first and second carrier waves are identical, and first and second transmitters are different.In another example, first and second carrier waves are different, and first and second transmitters are identical transmitters.In another example, first and second carrier waves are different, and first and second transmitters are different.In certain embodiments, first and second signals comprise content identical but that receive on different carrier or from different transmitters.
[00162] in certain embodiments, for example, in some embodiment that different time receives first and second signals, step 2404 comprises substep 2416,2418 and 2420.In substep 2416, wireless terminal receives one of first and second signals.Operation proceeds to substep 2418 from substep 2416.In substep 2418, wireless terminal is stored the information that obtains from one of first and second signals of being received.Operation proceeds to substep 2420 from substep 2418.In substep 2420, wireless terminal receives another signal that does not receive in substep 2416 in first and second signals.
[00163] operation proceeds to step 2406 from step 2404.In step 2406, wireless terminal is attempted in described first and second signals at least one decoded, and subsequently in step 2408, checks attempting decoded results.If it is successful that step 2406 is attempted decoding, operate from step 2408 proceeding to step 2414 so.If it is unsuccessful that step 2406 is attempted decoding, operate from step 2408 proceeding to step 2410 so.In step 2410, wireless terminal merges first and second received signals, and subsequently in step 2412, the signal after wireless terminal is combined is decoded.Operation proceeds to step 2414 from step 2412.In step 2414, wireless terminal generates audio frequency and presents in presenting with video at least one from decoded signal information.
[00164] Figure 25 is the figure such as the example wireless terminal 2500 of mobile node.Example wireless terminal 2500 comprises receiver module 2502, transmitter module 2504, processor 2506, user I/O equipment 2508 and the memory 2510 that connects together via bus 2512, wherein, each assembly carries out data and information exchange via bus 2512.Memory 2510 comprises routine 2524 and data/information 2526.Such as processor 2506 executive routines 2524 of CPU, and use the operation of the 2526 pairs of wireless terminals of data/information in the memory 2510 to control, and implementation method.
[00165] will be connected to reception antenna 2503 such as the receiver module 2502 of OFDM receiver, from base station transmitter receiving downlink signal, down link signal comprises the broadcast program information from one or more sources to wireless terminal via reception antenna 2503.2502 pairs of signals corresponding to broadcast program of receiver module receive, described signal comprises first and second signals, first signal is corresponding to the first carrier and first transmitter, secondary signal is corresponding to second carrier wave and second transmitter, and first carrier is different with second carrier wave or at least the second transmitter is different with first transmitter at least.Receiver module 2502 comprises and is used for decoder 2514 that the down link signal that some received is at least decoded.
[00166] will be connected to transmitting antenna 2505 such as the transmitter module 2504 of OFDM transmitter, wireless terminal 2500 sends to the base station via transmitting antenna 2505 with uplink signal.In certain embodiments, uplink signal comprises registering signal and/or is used to receive and recovers the access request of broadcast program.Transmitter module 2504 comprises and is used for encoder 2516 that some uplink signal that will send is at least encoded.
[00167] user I/O equipment 2508 comprises the user input device 2518 such as keypad, keyboard, switch, microphone, video camera input etc., display screen 2520, and such as the audio output apparatus 2522 of loud speaker and amplification that is associated and/or audio frequency processing circuit.
[00168] operator of wireless terminal 2500 uses user input device 2518 to select broadcast program, request visit, logon and/or carry out other interface operation.Display screen 2520 allows the user of wireless terminal 2500 to watch the video program information that is presented that is recovered.Audio output apparatus 2522 allows the user of wireless terminal 2500 to listen to the audio frequency presentation information of being recovered that is presented.
[00169] routine 2524 comprises Communications routines 2528 and wireless terminal control routine 2530.Communications routines 2528 realizes wireless terminal 2500 employed each communication protocols.Wireless terminal control routine 2530 comprises memory module 2532, merging module 2534, program rebroadcasting module 2536, strengthen module 2538, tuner module 2540 and switching controls module 2542.Strengthen module 2538 and comprise that layered decoder module 2544 and content merge module 2546.
[00170] 2532 pairs of memory modules are stored corresponding to a plurality of received signals of the broadcast program that receives from different carrier waves and/or different transmitters.Different transmitters can and/or be used for the different carrier transmitter of same base common sector corresponding to the different base station sector transmitter of different base station, same base.From the broadcast program received signal 2548 in source 1, from the broadcast program received signal 2550 in source 2 ..., are examples of memory module 2532 stored informations from the broadcast program received signal 2552 of source N.
[00171] merge module 2534 will be on different carrier and/or the received signal that receives from different base stations merge, be used to generate program and present.Broadcast program received signal (2548,2550,2552) is input to merges module 2534, and be the output that merges module 2534 corresponding to program segments after the merging of program 2554.
[00172] program rebroadcasting module 2536 is from such as presenting in presenting with video at least one by generating audio frequency the combined signal of audio frequency presentation information 2558 and video presentation information 2560 representatives.
[00173] strengthening module 2538 uses at least one the audio frequency presentation information that generates from first signal and video are presented of information in the secondary signals to strengthen, wherein, the broadcast message that the broadcast message that secondary signal for example receives from second source, first signal for example receive from first source.For example, elementary audio programme information 2584 and/or elementary video programme information 2590 can be from first signals in source 1, and audio frequency presents enhancing information 2586 and/or video and presents enhancing information 2590 and can comprise information from the secondary signal in source 2, and strengthens module 2538 operations and cause audio frequency presentation information 2588 that strengthens and/or the video presentation information 2594 that strengthens.
[00174] layered decoder module 2544 increases the resolution such as video image included in first signal from first source by using such as carrying out the hierarchical decoding operation from second source as the secondary signal of enhancing signal.In each embodiment, comprise use such as the further hierarchical decoding operation of enhancing signal of the 3rd signal conduct by execution from the 3rd source, layered decoder has further increased the resolution of video image.
[00175] content merges that module 2546 will audio frequency presents and/or video presents such as integrating with from the supplemental audio of the secondary signal in second source and/or video content, and wherein this supplemental audio and/or video content are not presented in first signal.
[00176] tuner module 2540 be tuned to one of a plurality of carrier waves of using of wireless terminal receiver module 2502 so that program signal is received, for example, be tuned to corresponding to one of first and second carrier waves in source 1 and source 2.2542 pairs of tuner modules 2540 of switching controls module are controlled, so that such as switching between first and second carrier waves according to the timing information of being stored, wherein, the timing information of being stored is corresponding to the broadcast program segmentation that is associated with different transmission sources.
[00177] data/information 2526 comprises that the broadcast program received signal is (from the broadcast program received signal 2548 in source 1, broadcast program received signal 2550 from source 2, broadcast program received signal 2552 from source N), merging program segments 2554 corresponding to program, the source '/carrier wave/transmitter information 2556, audio frequency presentation information 2558, video presentation information 2560, current selected downlink carrier information 2562, user/equipment/session/resource information 2564, current base station/sector mark information 2566, such as the one or more collection in the directory information 2570 of system's timing/frequency structure information 2568 of ofdm system and program.
[00178] from the broadcast program received signal 2548 in source 1 comprise one or more segment informations (segmentation 1 information 2572 ..., segmentation N information 2574).From the broadcast program received signal 2550 in source 2 comprise one or more segment informations (segmentation 1 ' information 2576 ..., segmentation N ' information 2578).From the broadcast program received signal 2552 of source N comprise one or more segment informations (segmentation 1 " information 2580 ..., segmentation N " information 2582).
[00179] audio frequency presentation information 2558 comprises basic programme information 2584, enhancing information 2586 and the audio frequency presentation information 2558 that strengthens.Video presentation information 2560 comprises basic programme information 2590, enhancing information 2592 and the video presentation information 2594 that strengthens.
[00180] source '/carrier wave/transmitter information 2556 comprises that the program signal source that each is different carries out relevant information with the downlink carrier that is using, and the information that transmitter is identified.The downlink carrier information 2562 of current selection comprise to receiver module 2502 current be tuned to the information that identifies of carrier wave.User/equipment/session/resource information 2564 comprises such as user totem information, equipment identification information, device parameter configuration information, session information and air link resources information, wherein, air link resources information such as wireless terminal should receive and handle so that receive the downlink traffic channel segment that audio presents it.Current base station/sector mark information 2566 comprises the information that source associated base station, sector and/or carrier wave with the broadcast singal that is being received by wireless terminal 2500 are identified.Comprise such as system down link/uplink channel structure information, downlink/uplink carrier information, downlink/uplink fundamental tone OFDM fundamental tone block message, downlink/uplink frequency frequency hopping information, symbol timing information, timing information and the program segments timing information relevant such as system's timing/frequency structure information 2568 of ofdm system with the grouping of a plurality of OFDM symbol transmission time.The directory information 2570 of program comprises the information that identifies such as to a plurality of audio frequency and/or video frequency program, with different programs and different base station attachment point, carry out related information corresponding to base station attachment point, base station section and the downlink carrier of base station, and to via base station attachment point programming transmitted such as basic program or present the information that the information type of enhancing information identifies.
[00181] Figure 26 is the figure such as the example communication system 2600 of the ofdm communication system of supporting programming.Example communication system 2600 comprise a plurality of base stations (base station 12602, base station 2 2604), such as a plurality of wireless terminals of mobile node (wireless terminal 12606 ..., wireless terminal N 2608) and network node 2610.Base station 1 2602 is single sector base stations, and it has the cellular coverage of sub-district 1 2603; Base station 2 2604 is single sector base stations, and it has the cellular coverage of sub-district 2 2605.Base station 1 2602 and base station 2 2604 are positioned at the position of mutual vicinity.Base station (2602,2604) are connected to network node 2610 such as router via network link (2612,2614) respectively.Network node is connected to internet and/or other network node via network link 2616.Network link (2612,2614,2616) is such as optical fiber link or copper metal line.
[00182] wireless terminal (2606,2608) communicates via Radio Link and base station.Shown in wireless terminal (2606,2608) from base station receiving downlink program signal.Base station 1 2602 sends downlink broadcasting programme signal 2618, by wireless terminal (2606,2608) it is received.Base station 2 2604 sends downlink broadcasting programme signal 2620, by wireless terminal (2606,2608) it is received.
[00183] base station 12602 comprises transmitter module 2622, transmit timing control module 2624, timing synchronization module 2626, is program segments collection 2628, the transmit timing schedule information 2630 of being stored, the transmission power information of being stored 2632 and the timing tolerance information 2627 that first program is stored.Base station transmitter 2622 sends corresponding to first segment purpose program segments, and for example, some is the program segments collection 2628 that first program is stored at least in transmission.2624 pairs first base station transmitters 2622 of transmit timing control module are controlled, so that send program segments on the time of the asynchronism(-nization) that sends with the program segments that has same information content by 2634 pairs of second base station transmitters.In certain embodiments, 2622 pairs first base station transmitters 2622 of transmit timing control module are controlled, so that make first base station transmitter 2622 send the program segments that the program segments that sends with second base station transmitter has same information content sending on non-overlapped time of asynchronism(-nization) of same program segmentation with second base station transmitter.The transmitting scheduling information of being stored 2630 comprises when first base station transmitter 2622 uses the information of first carrier to sending corresponding to first segment purpose program segments in indication.The transmission power level information 2632 of being stored comprises other information of indication first transmission power level, wherein, on first transmission power level, uses first carrier to send corresponding to first segment purpose program segments from first base station transmitter 2622.In each embodiment, not with first and second base station transmitters (2622,2634) regularly synchronously at Cyclic Prefix in the duration.The timing that timing synchronization module 2622 is kept between first base transmitter module 2622 and second base transmitter module 2634 is synchronous, so that maintain the timing synchronization levels within the Maximum tolerance, described maximum regularly tolerance limit is bigger than the OFDM Cyclic Prefix duration of the OFDM symbol that is sent by first base station transmitter 2622.Regularly tolerance information 2627 comprises by timing synchronization module 2626 employed maximum regularly tolerance values.
[00184] base station 2 2604 comprises transmitter module 2634, transmit timing control module 2636, timing synchronization module 2638, is program segments collection 2640, the transmit timing schedule information 2642 of being stored, the transmission power information of being stored 2644 and the timing tolerance information 2639 that first program is stored.Base station transmitter 2634 sends corresponding to first segment purpose program segments, and for example, some is the program segments collection 2640 that first program is stored at least in transmission.2636 pairs second base station transmitters 2634 of transmit timing control module are controlled, so that send program segments on the time of the asynchronism(-nization) that sends with the program segments that has same information content by 2622 pairs of first base station transmitters.In certain embodiments, 2636 pairs second base station transmitters 2634 of transmit timing control module are controlled, so that make second base station transmitter 2634 send the program segments that the program segments that sends with first base station transmitter 2622 has same information content sending on non-overlapped time of asynchronism(-nization) of same program segmentations with first base station transmitter 2622.The transmitting scheduling information of being stored 2642 comprises the indication information when second base station transmitter 2634 uses second carrier wave that the program segments corresponding to second program is sent, and described second carrier wave is different from described first carrier.The transmission power level information 2642 of being stored comprises other information of indication second transmission power level, wherein, on second transmission power level, use second carrier wave to send corresponding to first segment purpose program segments from second base station transmitter 2634, second transmission power level is different with first transmission power level.The timing that timing synchronization module 2638 is kept between second base transmitter module 2634 and first base transmitter module 2622 is synchronous, so that maintain the timing synchronization levels within the Maximum tolerance, described maximum regularly tolerance limit is bigger than the OFDM Cyclic Prefix duration of the OFDM symbol that is sent by first base station transmitter 2622.Regularly tolerance information 2639 comprises by timing synchronization module 2638 employed maximum regularly tolerance values.
[00185] in some other embodiment, first and second base station transmitters are sector transmitter, and in first and second transmitters at least one is positioned at multi-sector cell.
[00186] Figure 27 is the flow chart 2700 of illustrative methods that wireless terminal is operated.Illustrative methods begins in step 2702, in step 2702, carries out initialization to the wireless terminal power supply and to it.Operation proceeds to step 2704 from beginning step 2702.In step 2704, to wireless terminal operate in case on first carrier to receiving corresponding to first segment purpose first broadcast singal.Operation proceeds to step 2706 from step 2704.In step 2706, wireless terminal is operated so that first receiving broadcast signal is carried out first decode operation, and subsequently in step 2708, based on the decode operation control operation as a result of step 2706.If the decoding of wireless terminal determining step 2706 is unsuccessful, operate from step 2708 proceeding to step 2710 so; Yet,, operate from step 2708 proceeding to step 2709 so if the decoding of wireless terminal determining step 2706 is successful.
[00187] in step 2710, wireless terminal be tuned to second carrier wave different with first carrier, and in step 2712, wireless terminal on second carrier wave to receiving corresponding to first segment purpose second broadcast singal.Operation proceeds to step 2714 from step 2712.In step 2714, wireless terminal is carried out decode operation to second receiving broadcast signal, and in step 2716, based on the control operation as a result of step 2714 decode operation.If the decoding of wireless terminal determining step 2714 is unsuccessful, operate from step 2716 proceeding to step 2718 so; Yet,, operate from step 2716 proceeding to step 2720 so if the decoding of wireless terminal determining step 2714 is successful.
[00188] return step 2709, in step 2709, wireless terminal generates presented in the copy of first programme information that is recovered.Operation proceeds to step 2704 from step 2709, and wherein, wireless terminal pair another broadcast singal such as next program segments corresponding with first program that transmits by first carrier receives.
[00189] return step 2720, in step 2720, wireless terminal generates presented in the copy of first programme information that is recovered.Operation proceeds to step 2712 from step 2720, and wherein, wireless terminal pair another broadcast singal such as next program segments corresponding with first program that transmits by second carrier wave receives.
[00190] return step 2718, in step 2718, wireless terminal be tuned to first carrier.Operation proceeds to step 2704 from step 2718, and wherein, wireless terminal pair another broadcast singal such as next program segments corresponding with first program that transmits by first carrier receives.
[00191] if now will be unsuccessful to the decoding of step 2714 replaceable method that proceed describe.If the decoding of step 2714 is unsuccessful, operation proceeds to step 2722 from step 2716.In step 2722, wireless terminal determines whether to exist corresponding first and second available signals, for example, whether has received first and second signals corresponding with the same program segmentation, and first and second signals have been carried out information stores.If this information can be used, operation proceeds to step 2724 from step 2722; Otherwise operation proceeds to step 2732 from step 2722.In step 2724, wireless terminal merges first and second received signals, and subsequently in step 2726, the signal after wireless terminal is combined is carried out decode operation.Operation proceeds to step 2728 from step 2726.In step 2728, wireless terminal is proceeded operation based on the decode operation result of step 2726.If wireless terminal determines that decoding is unsuccessful in step 2726, operate from step 2728 so and proceed to step 2718; Yet,, operate from step 2728 proceeding to step 2730 so if wireless terminal is determined to decode successfully in step 2726.In step 2730, wireless terminal generates presented in the copy of first programme information that is recovered.Operation proceeds to step 2732 from step 2730.In step 2732, wireless terminal be tuned to first carrier.Operation proceeds to step 2704 from step 2732, and wherein, wireless terminal pair another broadcast singal such as next program segments corresponding with first program that transmits on first carrier receives.
[00192] return step 2718, in step 2718, wireless terminal be tuned to first carrier.Operation proceeds to step 2704 from step 2718, and wherein, wireless terminal pair another broadcast singal such as next program segments corresponding with first program that transmits on first carrier receives.
[00193] in certain embodiments, after successfully decoding, the information of being recovered is stored, and generate presented in the copy of first programme information that has recovered in the time after a while, for example, generate presented in the copy of first programme information corresponding with a plurality of set that recover program segments.
[00194] in each embodiment, first carrier is corresponding to first base station transmitter, and second carrier wave is corresponding to second base station transmitter, and described first and second base station transmitters are arranged in the sector of sub-district.In each embodiment, first and second received signals are included in the identical programme content that the different time upward receives.
[00195] Figure 28 is the figure such as the example wireless terminal 2800 of mobile node.Example wireless terminal 2800 comprises and connects receiver module 2802, transmitter module 2804, processor 2806, user I/O equipment 2808, memory 2810 and the decoder module 2812 that connects together via bus 2814, wherein, each assembly carries out data and information exchange via bus 2814.Also decoder module 2812 is connected to receiver module 2802 via link 2816.In each embodiment, decoder module 2812 is included in the receiver module 2802 as the part of receiver module 2802 and/or is included in the memory 2810 as the part of memory 2810.Memory 2810 comprises routine 2818 and data/information 2820.Wireless terminal 2800 executive routines 2818, and use the operation of the 2820 pairs of wireless terminals of data/information in the memory 2810 to control.
[00196] will be connected to reception antenna 2803 such as the receiver module 2802 of OFDM receiver, wireless terminal is via reception antenna 2803 receiving downlink signals, and down link signal comprises the broadcast program from one or more base station transmitters.In each embodiment, receiver module 2802 is the single-carrier receivers that can at every turn receive single carrier wave.
[00197] the 2812 pairs of broadcast singals that received of decoder module that are connected to receiver module 2802 are carried out decode operation.Decoder module 2812 can be carried out decode operation to the signal that receives from single source, and the combined signal that receives from multiple source is carried out decode operation.
[00198] user I/O equipment 2808 allow users to some operation at least of wireless terminal 2800 control, input information, selection broadcast program, listen to that institute receives and the audio frequency of recovered broadcast program export present and/or watch receive and the video of recovered broadcast program is exported.The user input device that user I/O equipment 2808 comprises such as keypad, keyboard, switch, touch-screen, microphone, video camera etc., such as the display device of video display screen, and such as the audio output apparatus of loud speaker.
[00199] will be connected to transmitting antenna 2805 such as the transmitter module 2804 of OFDM transmitter, wireless terminal sends to the base station via transmitting antenna 2805 with uplink signal.In certain embodiments, some uplink signals comprise at least one following information: the request of visit broadcast program, such as the charge information relevant with the broadcast program that is received by the user of wireless terminal 2800 and present, to the authentication of one or more broadcast programs charges.In certain embodiments, use identical antenna for receiver module 2802 with transmitter module 2804.In certain embodiments, some wireless terminals 2800 do not comprise transmitter module 2804.
[00200] routine 2818 comprises Communications routines 2822 and wireless terminal control routine 2824.Communications routines is carried out various communication functions and is realized wireless terminal 2800 employed communication protocols.Wireless terminal control routine 2824 comprises that decode operation evaluation module 2826, receiver switching controls module 2828, program segments merge module 2830, strength of carrier monitor module 2832 and carrier wave and select module 2834.
[00201] decode operation evaluation module 2826 determines whether the decoding to broadcast singal is unsuccessful.As decode operation evaluation module 2826 is determined that decode operation is unsuccessful response, receiver switching controls module 2828 receiver control modules 2802 are switched between the carrier wave such as first and second carrier waves.In certain embodiments, can be from still the signal that different time sends, recovering identical program segments on first and second carrier waves, and receiver switching controls module 2828 comprises handoff functionality, switches in the time cycle less than the time offset between the segment transmissions with same information content.
[00202] program segments merging module 2830 will merge by the program segments that generates that the signal that receives on different carrier is decoded, so that generate presented in the copy of the broadcast program that is resumed.
[00203] strength of carrier monitor module 2832 intensity is to received signal checked, received signal is such as beacon that is received and/or pilot signal, and it can indicate the receiving intensity of first and second carrier signals.Carrier wave selects module 2834 to carry out the carrier wave selection operations, as the function of the relative receiving intensity of 2832 determined by the strength of carrier monitor module, as to be used to transmit broadcast program carrier wave, described carrier wave is such as first and second carrier waves.
[00204] data/information 2820 comprise a plurality of program receiving buffer collection (be used for first carrier program receiving buffer 2836 ..., be used for the program receiving buffer 2838 of N carrier wave, with the corresponding merging program buffer 2840 of signal that receives from a plurality of carrier waves).In certain embodiments, first carrier is corresponding to first base station transmitter, and second carrier wave is corresponding to second base station transmitter, and described first and second base station transmitters are positioned at adjacent cell or sector.Program receiving buffer (first carrier) 2836 comprise the program receiving segment information (segmentation 1 information 2842 ..., segmentation M information 2844).Program receiving buffer (N carrier wave) 2838 comprise the program receiving segment information (segmentation 1 information 2846 ..., segmentation M information 2848).Program receiving buffer (a plurality of carrier wave) 2840 comprise the program receiving segment information (segmentation 1 information 2850 ..., segmentation M information 2852).Information representative in information in the program receiving buffer (first carrier) 2836 and the program receiving buffer (N carrier wave) 2838 can be forwarded to it decoder module 2812 from the information of receiver module 2802.The information that merges in the program buffer (a plurality of carrier wave) 2740 is represented from the merging of the information of a plurality of carrier waves receptions, for example, when independent use can not successfully be decoded to program segments corresponding to the reception information of first carrier or corresponding to the reception information of second carrier wave, decoder module 2712 can use the information that merges in the program buffer (a plurality of carrier wave) 2740 to attempt program segments is decoded.
[00205] data/information 2820 also comprise a plurality of handle (such as decoding) program buffer collection (be used for first carrier processing (decoding) program buffer 2854 ..., be used for processing (the decoding) program buffer 2856 of N carrier wave, and from corresponding processing (the decoding) program buffer 2858 of the received signal of a plurality of carrier waves).Handle (such as decoding) program buffer (first carrier) 2854 comprise the program segments information of handling (such as decoding) (segmentation 1 information 2860 ..., segmentation M information 2862).Handle (such as decoding) program buffer (N carrier wave) 2838 comprise the program segments information of handling (such as decoding) (segmentation 1 information 2864 ..., segmentation M information 2866).Handle (such as decoding) program buffer (a plurality of carrier wave) 2858 comprise the program segments information of handling (such as decoding) (segmentation 1 information 2868 ..., segmentation M information 2870).Handle (decoding) program buffer (first carrier) 2854, handle (decoding) program buffer (N carrier wave) 2856 and handled information representative in (decoding) program buffer (a plurality of carrier wave) 2858 from the output of decoder module 2812.
[00206] represents program segments to merge the output of module 2830 corresponding to the merging program segments 2872 of program, and represent merging from the program segments information of decoding of one or more buffers 2854,2856,2858.For example, sometimes, information 2872 comprises by the program segments to decoding and recovered from the information of single carrier wave, from the information of single carrier wave such as corresponding to segmentation 1 information 2860 of first carrier ..., segmentation M information 2862.Sometimes, information 2872 comprise by with the corresponding program segments that information decoding recovered of successful independence decoding from the program segments of a plurality of carrier waves, from information, recover independently program segments from single carrier wave, from the information of single carrier wave such as corresponding to segmentation 1 information 2860 of first carrier with corresponding to the segmentation M information 2866 of N carrier wave.Sometimes, information 2872 comprise from least one independently handled the carrier wave buffer (2854 ..., 2856) at least one program segments of recovering and merge at least one program segments that program buffer 2858 is recovered from handling, for example, segmentation 1 information 2858 and segmentation 1 information 2864.Sometimes, the segmentation that comprises in the information 2872 is derived from oneself and handles (decoding) merging program buffer 2858.
[00207] strength of carrier information 2876 comprises the measurement result that obtained by strength of carrier monitor module 2832, measured signal and transmit power level information is carried out relevant information and relative signal intensity information, wherein, transmit power level information is associated with the carrier wave that signal transmitted uses.Carrier wave selects module 2834 to use strength of carrier information 2876.
[00208] the downlink carrier information 2878 of current selection comprises information that optional carrier wave is identified and the information that current carrier wave is identified, wherein, for example, wireless terminal can be alternately be tuned to two optional carrier waves so that attempt broadcast program is received the decode; Wireless terminal now with its receiver module be tuned to current carrier wave, for example, with receiver module 2802 Set For Currents for segmentation receives to broadcast program on the current carrier wave of two optional carrier waves.
[00209] current base station/sector mark information 2880 comprises information that base station, sector, sectors type and/or downlink carrier are identified and the information that the attachment point transmitter is identified, wherein, downlink carrier is associated with optional base station attachment point transmitter, for example, wireless terminal can be alternately be tuned to optionally base station attachment point transmitter come selected broadcast program is received; Receiver module 2802 current be tuned to the attachment point transmitter that identified so that segmentation receives to broadcast program.
[00210] the system's timing/frequency structure information 2882 such as ofdm system comprises downlink/uplink channel architecture information, downlink/uplink carrier information, downlink/uplink fundamental tone frequency hopping information etc.System configuration information 2882 comprises the information that the traffic channel segment that is exclusively used in broadcast program in the downlink channel structure is identified.
[00211] directory information 2884 of program comprises the information that a plurality of different available broadcast programs are identified.The directory information 2884 of program for single program comprise information that transmitter and the employed carrier wave of transmitter that is associated with this program are identified and be used for transmission that program segments that transmitter/carrier wave merges is associated regularly.
[00212] user/equipment/session/resource information 2874 comprises such as login name, password, visit information, equipment identification information, comprises corresponding to the session information of the charge information that receives broadcast program and to wireless terminal and be used to recover the information that the air link resources of broadcast message identifies.
[00213] Figure 29 is the flow chart 2900 of example communication method.For example, can be in ofdm communication system the usage example communication means, for example, ofdm communication system comprises by a program is divided into a plurality of program segments again, comes one or more programs are broadcasted.Operate in beginning in the step 2902, in step 2902, carry out initialization to the power supply of the base station in the system and to it.Operation proceeds to step 2904 and 2906 from beginning step 2902.
[00214] in step 2904, first base station is operated so that transmission information.Step 2906 comprises substep 2908.In substep 2908, first base station is operated so that send corresponding to a plurality of different program segments of first segment purpose.
[00215] in step 2906, second base station that is positioned at contiguous described first base station is operated, so that send the information that sends by described first base station, the information that is sent by second base station is sent, make first and second base stations send identical information at different time.Step 2906 comprises substep 2912.In substep 2912, second base station is operated, so that send corresponding to these identical a plurality of different program segments of first segment purpose, but from apart from the time offset of the segmentation with same information content that sends by first base station segmentation with same information content being sent.
[00216] in certain embodiments, at least at some time durations, step 2904 comprises substep 2910, and step 2906 comprises substep 2914.In step 2910, first base station is operated, so that transmission is corresponding to a plurality of different program segments of second program.In step 2914, second base station is operated, so that send these identical a plurality of different program segments corresponding to second program, but from apart from the time offset of the segmentation with same information content that sends by first base station segmentation with same information content being sent.
[00217] in each embodiment, first base station is operated so that transmission information comprises the first carrier transmission information of using, and second base station is operated so that transmission information comprises use second carrier wave transmission information, and described second carrier wave has the frequency different with first carrier.In some this embodiment, first and second base stations send described information on different power ranks.
[00218] in certain embodiments, comprise that from the first base station transmission information Cyclic Prefix that uses at least one OFDM symbol and have the Cyclic Prefix duration sends information, and not with described first and second base station synchronization at Cyclic Prefix in the duration.
[00219] Figure 30 is the figure such as the example communication system 3000 of the ofdm communication system of supporting programming.Example communication system 3000 comprise a plurality of base stations (base station 13002, base station 2 3004), such as a plurality of wireless terminals of mobile node (wireless terminal 13006 ..., wireless terminal N 3008) and network node 3010.Base station 1 3002 is single sector base stations, and it has the cellular coverage of sub-district 1 3003; Base station 2 3004 is single sector base stations, and it has the cellular coverage of sub-district 2 3005.Base station 1 3002 and base station 2 3004 are positioned at the position of mutual vicinity.Base station (3002,3004) are connected to network node 3010 such as router via network link (3012,3014) respectively.Network node is connected to internet and/or other network node via network link 3016.All optical fiber links in this way of network link (3012,3014,3016) or copper metal line.
[00220] wireless terminal (3006,3008) communicates via Radio Link and base station.Shown in wireless terminal (3006,3008) from base station receiving downlink program signal.Base station 1 3002 sends downlink broadcasting programme signal 3018, and wireless terminal (3006,3008) receives it.Base station 2 3004 sends downlink broadcasting programme signal 3020, and wireless terminal (3006,3008) receives it.
[00221] base station 1 3002 comprise transmitter module 3022, transmit timing control module 3024, power control module 3026, stored be used for first segment purpose program segments collection 3028, the transmit timing schedule information 3030 of being stored, the transmission power information of being stored 3032 and tolerance information 3027 regularly.Such as using carrier frequency f
1The base station transmitter 3022 transmission information of OFDM transmitter, for example, in being used for of being stored such as the information in the first segment purpose program segments collection 3028 of video frequency program.3024 pairs first base station transmitters 3022 of transmission time control module are controlled, so that send the identical information that sends by second base station transmitter, but has the time difference with the transmission of second transmitter, make win base station transmitter and second base station transmitter send the part of identical information at different time with identical content, for example, program segments.3026 pairs first base station transmitters 3022 of power control module are controlled, so that such as power rank P
1The first power rank on transmission information.
[00222] transmitting scheduling information of being stored 3030 comprises when first base station transmitter 3022 uses such as f in indication
1First carrier send information corresponding to first segment purpose program segments.The transmission power level information 3032 of being stored comprises indication first transmission power level other information, such as P
1First transmission power level on, use first carrier to send corresponding to first segment purpose program segments from first base station transmitter 3022.In each embodiment, first and second base station transmitters (3022,3034) regularly are synchronized to a certain rank, this rank is greater than the Cyclic Prefix duration, but the transmit timing difference between less than first base station transmitter and second base station transmitter message part such as program segments with same information content being transmitted.Regularly tolerance information 3027 comprise the transmit timing control module 3026 that using, such as maximum regularly tolerance value about the synchronization levels between first and second base station transmitters (3022,3040).
[00223] base station 2 3004 comprise transmitter module 3034, transmit timing control module 3036, stored be used for first segment purpose program segments collection 3040, the transmit timing schedule information 3042 of being stored, the transmission power information of being stored 3044 and tolerance information 3039 regularly.Such as using carrier frequency f
2The base station transmitter 3034 transmission information of OFDM transmitter, for example, in being used for of being stored such as the information in the first segment purpose program segments collection 3040 of video frequency program, wherein, f
2With f
1Different.Have and the identical content of information in the first segment purpose program segments collection 3028 of being used for of being stored in the information in the first segment purpose program segments collection 3040 of being used for of being stored.3036 pairs second base station transmitters 3034 of transmission time control module are controlled, so that send the identical information that sends by first base station transmitter, but has the time difference with the transmission of first transmitter, win base station transmitter and second base station transmitter are sent at different time have the identical information part of identical content, for example, program segments.In some this embodiment,, make it not overlapping to carrying out timing controlled from segmentation not homology, that transmit identical information such as base station 1 transmitter 3022 and base station 2 transmitters 3034.3038 pairs second base station transmitters 3034 of power control module are controlled, so that such as power rank P
2The second power rank on transmission information, wherein, P
2With P
1Different.
[00224] transmitting scheduling information of being stored 3042 comprises when second base station transmitter 3034 uses such as f in indication
2Second carrier wave send information corresponding to first segment purpose program segments.The transmission power level information 3044 of being stored comprises indication second transmission power level other information, such as P
2Second transmission power level on, use second carrier wave to send corresponding to first segment purpose program segments from second base station transmitter 3044.In each embodiment, first and second base station transmitters (3022,3034) regularly are synchronized to a certain rank, this rank is greater than the Cyclic Prefix duration, but the transmit timing difference between less than first base station transmitter and second base station transmitter message part such as program segments with same information content being transmitted.Regularly tolerance information 3039 comprise the transmit timing control module 3036 that using, such as maximum regularly tolerance value about the synchronization levels between first and second base station transmitters (3022,3040).
Notice that [00225] each embodiment keeps between the neighbor base station relatively coarse grade, and other is synchronous.In certain embodiments, in system, other transmitter of coarse grade is regularly controlled synchronously by the node outside the base station such as network node 3010.In certain embodiments, base station 3002,3004 exchange of signaling are so that coordinate and keep this coarse grade other is synchronous.In certain embodiments, the base station need be in order not reach and/or to keep the synchronous purpose of this coarse rank between the base station and exchange of signaling, and in various embodiments, the base station is not in order to reach and/or to keep the synchronous purpose of this coarse rank between the base station and exchange of signaling.In some this embodiment, use its oneself timing reference and/or external definition source reference signal such as the stand-alone base station of base station 3002 such as the precision clock reference signal so that keep coarse grade desired between the base station other regularly synchronously.
[00226] in some other embodiment, first and second base station transmitters are sector transmitter, and in first and second transmitters at least one is positioned at multi-sector cell.
[00227] Figure 31 is the figure such as the exemplary base 3100 of access node.Exemplary base 3100 comprises multi-carrier receiver parts 3102, multicarrier transmitter parts 3104, processor 3106, I/O interface 3108 and the memory 3110 that connects together via bus 3112, wherein, each assembly swap data and information on bus 3112.Memory 3110 comprises routine 3126 and data/information 3128.Data/information 3128 in base station 3100 executive routines 3126 and the use memory 3110 is so that control and implementation method the operation of base station 3100.
[00228] will be connected to reception antenna 3103 such as the multi-carrier receiver parts 3102 of OFDM receiver components, base station 3100 via reception antenna 3103 from wireless terminal receiving uplink signal.In certain embodiments, the uplink signal that is received comprises request to the visit broadcast program, indication subscription authentication so that to the information of broadcast program charge and/or the relevant charge information of broadcast program of visiting with wireless terminal.Receiver components 3102 comprises and is used for decoder that some received signal is at least decoded.In certain embodiments, for example, in some embodiment that only work in base station 3100, do not comprise receiver components 3102 in the broadcast mode about its wave point.
[00229] will be connected to transmitting antenna 3105 such as the multicarrier transmitter parts 3104 of OFDM multicarrier transmitter parts, base station 3100 sends to wireless terminal via transmitting antenna 3105 with down link signal, and some sends signal and comprises program signal at least.Two optional exemplary embodiments to multicarrier transmitter module 3104 describe.In first embodiment, comprise one three carrier transmit machine module 3116, and in a second embodiment, use three independent single carrier transmitter modules (carrier wave 1 transmitter module 3118, carrier wave 2 transmitter modules 3120, carrier wave 3 transmitter modules 3 122).For example, in certain embodiments, if use three carrier transmit machine modules 3116, three carrier transmit machine modules 3116 can generate the OFDM symbol that comprises three non-overlapped down link fundamental tone pieces so, for example, an OFDM symbol uses 339 fundamental tones and comprises three fundamental tone pieces that have 113 fundamental tones separately, and each fundamental tone piece is associated with the employed carrier frequency of gene block that wireless terminal is used to recover independent.As another example, in certain embodiments, if use three independent carrier transmit machine modules (3118,3120,3122), so just independent each OFDM symbol that generates and send corresponding to carrier wave, for example, each OFDM symbol uses the fundamental tone piece with 113 fundamental tones.Multicarrier transmitter parts 3104 also comprise and are used for coder module 3124 that some down link signal is at least encoded.
[00230] I/O interface 3108 is used for that base station 3100 is connected to the internet and/or such as other network nodes of programme content server, other base station, router, security server node, charge node etc.
[00231] routine 3126 comprises Communications routines 3128 and base stations control routine 3130.Communications routines 3128 realizes base station 3100 employed various communication protocols and carries out such as a plurality of traffic operations that I/O interface 3108 is controlled.Base stations control routine 3130 comprises carrier wave 1 transmission control module 3132, carrier wave 2 transmission control modules 3134, carrier wave 3 transmission control modules 3136, program transmission control module 3138 and content control module 3146.Program transmission control module 3138 comprises carrier wave 1 resolution of program rank 1 submodule 3140, carrier wave 2 resolution of program ranks, 2 submodules 3142 and carrier wave 3 resolution of program ranks 3 submodules 3144.
[00232] carrier wave 1 transmission control module 3132 transmits about carrier wave 1 multicarrier transmitter module 3104 is controlled, for example, and with carrier wave f
1The transmission of last programme information is controlled at power rank P
1Data rate R
1 On.Carrier wave 2 transmission control modules 3134 transmit about carrier wave 2 to be controlled multicarrier transmitter module 3104, for example, and with carrier wave f
2The transmission of last programme information is controlled at power rank P
2Data rate R
2 On.Carrier wave 3 transmission control modules 3136 transmit about carrier wave 3 to be controlled multicarrier transmitter module 3104, for example, and with carrier wave f
3The transmission of last programme information is controlled at power rank P
3Data rate R
3On.
[00233] program transmission control module 3138 operations comprise to be controlled the video resolution rank corresponding to signal transmitted.3140 pairs of carrier wave 1 resolution of program rank 1 submodules are controlled at least partially in the video frequency program that sends with the first video resolution rank on the carrier wave 1.3142 pairs of carrier wave 2 resolution of program ranks 2 submodules are controlled at least partially in the video frequency program that sends with the second video resolution rank on the carrier wave 2, for example, the second video resolution rank is than about the lower resolution levels of carrier wave 1 employed resolution levels.3144 pairs of carrier wave 3 resolution of program ranks 3 submodules are controlled at least partially in the video frequency program that sends with the 3rd video resolution rank on the carrier wave 3.
[00234] 3146 pairs of content control modules are controlled corresponding to the content in the broadcast segmentation of different carrier.In certain embodiments, content control module 3146 executable operations, so as to comprise at least that some is identical on a plurality of carrier waves, but have the programme information of different resolution, wherein, a plurality of carrier waves such as first and second carrier waves or first, second and the 3rd carrier wave.Content control module 3146 is integrated with video program information 3174 the broadcast transmitted segmentation that is associated with each carrier wave.
[00235] data/information 3128 comprises carrier wave 1 power level information 3148, and it comprises transmission power level P
1The information that identifies; Carrier wave 2 power level information 3150, it comprises transmission power level P
2The information that identifies; And carrier wave 3 power level information 3152, it comprises transmission power level P
3The information that identifies.In each embodiment, P
1Be not equal to P
2And P
2Be not equal to P
3
[00236] data/information 3128 also comprises carrier wave 1 frequency information 3154, and it comprises downlink carrier 1 is designated f
1Information; Carrier wave 2 frequency informations 3156, it comprises downlink carrier 2 is designated f
2Information; And carrier wave 3 frequency informations 3158, it comprises downlink carrier 3 is designated f
3Information.In each embodiment, f
1With f
2Difference and f
2With f
3Different.In some this embodiment, relevant with in three carrier waves each such as the non-overlapped down link fundamental tone piece of OFDM fundamental tone piece with 113 fundamental tones.
[00237] data/information 3128 also comprises carrier wave 1 data-rate information 3160, and it comprises R
1Be designated the information that will be used for the information data rate of broadcast program segmentation on the carrier wave 1; Carrier wave 2 data-rate information 3168, it comprises R
2Be designated the information that will be used for the information data rate of broadcast program segmentation on the carrier wave 2; And carrier wave 3 data-rate information 3170, it comprises R
3Be designated the information that will be used for the information data rate of broadcast program segmentation on the carrier wave 3.In each embodiment, R
1With R
2Difference and R
2With R
3Different.
[00238] data/information 3128 also comprises broadcast program information 3172 and broadcast program transmission information 3180.Broadcast program information 3172 comprises video program information 3174.Video program information 3174 comprises a plurality of information (information 13176, information M3178) corresponding to video frequency program.In each embodiment, broadcast program information 3172 comprises the information corresponding to a plurality of different programs.In certain embodiments, broadcast program information 3176 comprises audio program information.
[00239] broadcast program transmission information 3180 comprise a plurality of information sets corresponding to carrier wave 1 (carrier wave 1 segmentation 1 information 3182 ..., carrier wave 1 segmentation N information 3184), a plurality of information set corresponding to carrier wave 2 (carrier wave 2 segmentations 1 information 3186 ..., carrier wave 2 segmentation N information 3188), a plurality of information set corresponding to carrier wave 3 (carrier wave 3 segmentations 1 information 3190 ..., carrier wave 3 segmentation N information 3192) and transmitting and scheduling timing information 3194.
[00240] can use the combination of software, hardware or software and hardware to realize the technology of each embodiment.Each embodiment concentrates on device, for example, and such as mobile node, base station, the communication system of portable terminal.Also concentrate on method, for example, mobile node, base station and/or communication system such as main frame are controlled and/or method of operating.Each embodiment also concentrates on the machine readable media such as ROM, RAM, CD, hard disk etc., and it comprises that being used to control machine carries out one or more step machine readable instructions.
[00241] in each embodiment, use one or more modules to realize node as described herein, so that carry out the step corresponding to one or more methods, for example, signal processing, message generate and/or transmitting step.Therefore, in certain embodiments, use module to realize each characteristic.Can use the combination of software, hardware or software and hardware to realize these modules.Can use machine-executable instruction to realize many methods as described above or method step, in machine-readable medium, comprise machine-executable instruction such as software such as memory devices such as RAM, floppy disk etc., so that, in such as one or more nodes, realize all or part of method as described above to controlling such as the machine that has or do not have the all-purpose computer of additional firmware.Therefore, in other situation, each embodiment is directed to the machine readable media that comprises machine-executable instruction, and machine-executable instruction is used to make one or more steps of carrying out method mentioned above such as the machine of processor and related hardware.
[00242] though be described in the context of ofdm system, some method and apparatus at least of each embodiment can be used for comprising in the communication system of more wide region of many non-OFDM and/or non-cellular system.
[00243] to one skilled in the art, consider above-mentioned explanation, the many extra variation on the method and apparatus of each embodiment mentioned above will be conspicuous.Think that these change within the scope of the invention.Can be with the communication technology using method and the device of CDMA, OFDM (OFDM) and/or various other types, and in each embodiment, communication technology using method and device with CDMA, OFDM (OFDM) and/or various other types, wherein, can use the communication technology of various other types so as access node to be provided and mobile node between wireless communication link.In certain embodiments, access node is embodied as the base station, it uses OFDM and/or CDMA and mobile node to set up communication link.In each embodiment, mobile node is embodied as notebook, PDA(Personal Digital Assistant) or comprises and be used to realize the receiver/transmitter circuitry of described method and the portable equipment of logic and/or routine.
Claims (69)
1. communication means comprises:
First base station transmitter is operated, to send corresponding to first segment purpose program segments; And
Second base station transmitter that is positioned at contiguous described first base station transmitter is operated, to send the described first segment purpose program segments identical with described first base station, still described first and second base stations send the segmentation with same information content at different time.
2. communication means as claimed in claim 1, wherein, described first and second base station transmitters are the transmitters that are positioned at contiguous single sector cell.
3. communication means as claimed in claim 1, wherein, described first and second base station transmitters are the sector transmitter that are positioned at nearby sectors, and wherein, use described communication means in having the system of multi-sector cell, described nearby sectors is sector in the same sub-district or the sector in the contiguous multi-sector cell.
4. communication means as claimed in claim 1 wherein, is operated to send described first base station transmitter and to be comprised corresponding to described first segment purpose program segments: uses first carrier to send corresponding to the described program segments of described first segment purpose; And
Wherein, the program segments that described second base station transmitter is operated to send corresponding to described same program segmentation comprises: use second carrier wave to send corresponding to the described program segments of described first segment purpose, described second carrier wave has the frequency different with described first carrier.
5. communication means as claimed in claim 1 wherein, is operated to send described first base station transmitter and to be comprised corresponding to described first segment purpose program segments: uses the first carrier and first transmission power level to send described program segments; And
Wherein, described second base station transmitter operated to send comprise: use second carrier wave and second transmission power level to send described first program segments corresponding to described first segment purpose program segments, described second carrier wave has the frequency different with described first carrier, and described second transmission power level is different with described first transmission power level.
6. communication means as claimed in claim 5, wherein, described first and second base station transmitters are corresponding to different sub-districts, and described method regularly is not synchronized to Cyclic Prefix in the duration further.
7. communication means as claimed in claim 1, wherein, described second base station transmitter that is positioned at contiguous described first base station transmitter operated to send the segmentation of described first segment purpose same program comprise: described second base station transmitter is operated, to send the program segments that has same information content with the program segments that is sent by described first base station transmitter sometime, described time and described first base station transmitter have side-play amount to the time that the described program segments with same information content sends.
8. communication means as claimed in claim 7, wherein, the OFDM symbol that use sends with Cyclic Prefix sends described information program segmentation, by the duration of the transmission time side-play amount between the program segments with same information content of described first and second base station transmitters transmission greater than Cyclic Prefix.
9. communication means as claimed in claim 8, wherein, not with described first and second base station transmitters synchronously at Cyclic Prefix in the duration, and wherein, by the duration of the described transmit timing side-play amount between the program segments with same information content of described first and second base stations transmission above symbol transmission time periods, described symbol transmission time periods comprises the time that is used to send an OFDM symbol and corresponding Cyclic Prefix.
10. communication means as claimed in claim 9, wherein, the program segments of described first base station transmission and described second base station equal to be used to send the time quantum of described program segments at least to the described time offset between the transmission of program segments with same program content.
11. communication means as claimed in claim 9, wherein, the program segments of described first base station transmission and described second base station equal described first base station at least to the described time offset between the transmission of program segments with same program content described program segments are sent employed time quantum.
12. communication means as claimed in claim 11, wherein, when described second base station sends corresponding to described first segment purpose program segments, described first base station does not send corresponding to described first segment purpose program segments, and described first and second base stations send corresponding to described first segment purpose program segments in staggered mode.
13. communication means as claimed in claim 12, wherein, described first and second base stations periodically send described staggered program segments, corresponding to the transmission time between the described first segment purpose program segments less than 5 seconds.
14. communication means as claimed in claim 1, wherein, described first and second base stations use a plurality of carrier frequencies to send signal separately, and neighbor base station is that same carrier frequency is used different transmission power level.
15. communication means as claimed in claim 14, wherein, each carrier frequency is corresponding to different OFDM fundamental tone pieces, and the fundamental tone in each different OFDM fundamental tone piece is nonoverlapping on frequency.
16. a communication system comprises:
Corresponding at least one institute's programs stored segmentation collection of first segment purpose;
First base station transmitter, it is to sending corresponding to described first segment purpose program segments;
Second base station transmitter, it is positioned at contiguous described first base station transmitter, be used for described first segment purpose that described first base station is sent at least some program segments send; And
The transmission time control module, it is controlled described at least second base station transmitter, to send program segments on the time of the asynchronism(-nization) that the program segments with same information content is sent with described first base station transmitter.
17. system as claimed in claim 16, wherein, described first and second base station transmitters are the transmitters in single sector cell.
18. system as claimed in claim 16, wherein, described first and second base station transmitters are sector transmitter, and wherein, at least one in described first and second transmitters is positioned at multi-sector cell.
19. system as claimed in claim 16 also comprises:
The transmitting scheduling information of storing, when described first base station transmitter uses first carrier to sending corresponding to described first segment purpose program segments in its indication; And when described second base station transmitter uses second carrier wave to sending corresponding to described first segment purpose program segments in indication, and wherein, described second carrier wave has the carrier frequency different with the carrier frequency of described first carrier.
20. system as claimed in claim 16, the transmission power level information of storing corresponding to described first base station transmitter is indicated first transmission power level, on described first transmission power level, use first carrier to send corresponding to described first segment purpose program segments from described first base station transmitter; And
The additional transmission power level information of storing corresponding to described second base station transmitter is indicated second transmission power level, on described second transmission power level, send corresponding to described first segment purpose program segments from described second base station transmitter, wherein, described second transmission power level is different with described first transmission power level.
21. system as claimed in claim 20 wherein, regularly is not synchronized to Cyclic Prefix in the duration with described first and second base stations.
22. system as claimed in claim 16 also comprises:
The timing synchronization module, it is synchronous that it is used to the timing kept between described first and second base station transmitters, to maintain the timing synchronization levels within the Maximum tolerance, described maximum regularly tolerance limit is bigger than the OFDM Cyclic Prefix duration of the OFDM symbol that is sent by described first base station transmitter.
23. system as claimed in claim 16, wherein, described transmission time control module is controlled described at least second base station transmitter, with with non-overlapped time of the asynchronism(-nization) that identical program segments is sent by described first base station transmitter on, the program segments that has a same information content with the program segments that is sent by described first base station transmitter is sent.
24. a communication system comprises:
The first base station machine, it is to sending corresponding to first segment purpose program segments; And
The second base station machine, it is positioned at contiguous described first base station transmitter, the described first segment purpose program segments identical with described first base station sent, but the described first and second base station machines send the segmentation with same information content at different time.
25. communication system as claimed in claim 24, wherein, the described first and second base station machines are the transmitters that are positioned at contiguous single sector cell.
26. communication system as claimed in claim 24, wherein, the described first and second base station machines are the sector transmitter that are positioned at the nearby sectors of multi-sector cell.
27. one kind is carried out method of operating to wireless terminal, comprising:
On first carrier to receiving corresponding to first segment purpose first broadcast singal;
First broadcast singal to described reception is carried out first decode operation;
Determine whether described first decode operation is unsuccessful; And
If it is unsuccessful determining described decode operation, just be tuned to second carrier wave different with described first carrier.
28. method as claimed in claim 27 also comprises:
Described wireless terminal is operated, with on described second carrier wave to receiving corresponding to described first segment purpose second broadcast singal.
29. method as claimed in claim 28 also comprises:
Second broadcast singal to described reception is carried out second decode operation.
30. method as claimed in claim 29 also comprises:
Determine whether described second decode operation is unsuccessful; And
If it is unsuccessful determining described decode operation, just be tuned to described first carrier.
31. method as claimed in claim 30 also comprises:
In the time can not decoding, between described first and second carrier waves, switch in the mode of carrying out continuously to the signal that is received.
32. method as claimed in claim 27, wherein, described first carrier is corresponding to first base station transmitter, and described second carrier wave is corresponding to second base station transmitter, and described first and second base station transmitters are positioned at adjacent cell or sector.
33. method as claimed in claim 27, wherein, first and second signals of described reception comprise identical programme content, but first and second signals of described reception receive at different time.
34. method as claimed in claim 33 also comprises:
The signal that receives on described first and second carrier waves is merged, can present copy to generate described first segment purpose.
35. a wireless terminal comprises:
Receiver, it is used for the broadcast singal that sends on first and second carrier waves at different time is received;
Decoder is connected to described receiver, is used for the broadcast singal of described reception is carried out decode operation;
The decode operation evaluation module, it is used for determining whether the decoding to broadcast singal is unsuccessful; And
Control module, it determines that in response to described decode operation evaluation module decode operation is unsuccessful, controls described receiver and switches between described first and second carrier waves.
36. wireless terminal as claimed in claim 35 also comprises:
Program segments merges module, and it merges the program segments that signal generated that receives on different carrier by decoding, to generate presented in the copy of described broadcast program.
37. wireless terminal as claimed in claim 35, wherein, can be from still the signal that different time sends, recovering identical program segments on described first and second carrier waves, described control module comprises handoff functionality, and it is switching in the little time cycle than the time offset between the segment transmissions with same information content.
38. wireless terminal as claimed in claim 36 also comprises:
The strength of carrier monitor module, its intensity to signal checks that described intensity is indicated the receiving intensity of described first and second carrier signals; And
Carrier wave is selected module, and it carries out the carrier wave selection operation according to the relative receiving intensity of determined described first and second carrier waves of described strength of carrier monitor module.
39. wireless terminal as claimed in claim 36, wherein, described receiver is the single-carrier receiver that can at every turn receive single carrier wave.
40. wireless terminal as claimed in claim 35, wherein, described first carrier is corresponding to first base station transmitter, and described second carrier wave is corresponding to second base station transmitter, and described first and second base station transmitters are positioned at contiguous sub-district or sector.
41. a wireless terminal comprises:
Receiver apparatus, it is used for the broadcast singal that sends on first and second carrier waves at different time is received;
Decoder device is connected to described receiver, is used for the broadcast singal of described reception is carried out decode operation;
The decode operation apparatus for evaluating, it is used for determining whether the decoding to broadcast singal is unsuccessful; And
Control device, it determines that in response to described decode operation evaluation module decode operation is unsuccessful, controls described receiver and switches between described first and second carrier waves.
42. wireless terminal as claimed in claim 41 also comprises:
Program segments merges device, and it merges the program segments that signal generated that receives on different carrier by decoding, to generate presented in the copy of described broadcast program.
43. wireless terminal as claimed in claim 41, wherein, can be from still the signal that different time sends, recovering identical program segments on described first and second carrier waves, described control device comprises and is used in the little time cycle, carrying out device for switching than the time offset between the segment transmissions with same information content between described first and second carrier waves.
44. wireless terminal as claimed in claim 42 also comprises:
The strength of carrier monitoring arrangement, it is used for the intensity of signal is checked that described intensity is indicated the receiving intensity of described first and second carrier signals; And
The carrier wave choice device, it is used for the relative receiving intensity according to determined described first and second carrier waves of described strength of carrier monitor module, carries out the carrier wave selection operation.
45. a communication means comprises:
First base station is operated with transmission information; And
Second base station that is positioned at contiguous described first base station is operated,, the information that is sent by described second base station is sent, make described first and second base stations send identical information at different time to send the described information that sends by described first base station.
46. communication means as claimed in claim 45 wherein, is operated with transmission information described first base station and to be comprised: uses first carrier to send described information; And
Wherein, described second base station is operated with transmission information comprise: use second carrier wave to send described information, described second carrier wave has the frequency different with described first carrier.
47. communication means as claimed in claim 46, wherein, described first and second base stations send described information on different power ranks.
48. method as claimed in claim 46, wherein, sending described information from described first base station comprises: use at least one OFDM symbol and have the Cyclic Prefix of Cyclic Prefix duration and send the described first information, not with described first and second base station synchronization at described Cyclic Prefix in the duration.
49. communication means as claimed in claim 45, wherein, described information is corresponding to the program segments of the program of described first and second base stations transmission, and described method also comprises:
Described first base station is operated, to send a plurality of different program segments corresponding to described program; And
Described second base station is operated, and sending identical a plurality of different program segments, but the transmission of described segmentation with same information content and described first base station have time offset to the transmission of segmentation with same information content.
50. a communication system comprises:
First base station, it comprises first transmitter that is used to the information that sends;
Be positioned at second base station of contiguous described first base station, it comprises second transmitter, is used to send the identical information that is sent by described first base station; And
The transmission time control module, it is used for described at least second base station transmitter is controlled, to send the identical information that described first base station transmitter sends, the transmission of described transmission and described first transmitter has time difference, makes described first and second transmitters send at different time and has the described identical information part of identical content.
51. system as claimed in claim 50, wherein, described first transmitter is the first carrier transmitter that sends on first carrier, and
Wherein, described second transmitter is the second carrier transmit machine that sends on second carrier wave, and described first and second carrier waves have different carrier frequencies.
52. system as claimed in claim 51 also comprises:
Power control module, it is used for described second transmitter is controlled, to send described information on the different power rank of the power rank that described information is sent with described first transmitter.
53. system as claimed in claim 51, wherein, described first and second transmitters are OFDM transmitters, they regularly are synchronized to a certain rank, the transmission time difference between the transmission that described rank is carried out the described message part with same information content greater than the Cyclic Prefix duration but less than described first and second transmitters.
54. system as claimed in claim 50, wherein, described information is corresponding to video frequency program, and wherein, described message part is a program segments.
55. a computer-readable medium, it comprises to be used to carry out first base station transmitter and second base station transmitter is carried out the instruction of method of operating, and described method comprises:
Described first base station transmitter is operated, to send corresponding to first segment purpose program segments; And
Described second base station transmitter that is positioned at contiguous described first base station transmitter is operated, to send the described first segment purpose program segments identical with described first base station, still described first and second base stations send the segmentation with same information content at different time.
56. computer-readable medium as claimed in claim 55, wherein, described first and second base station transmitters are the transmitters that are positioned at contiguous single sector cell.
57. computer-readable medium as claimed in claim 55, wherein, described first and second base station transmitters are the sector transmitter that are positioned at nearby sectors, and wherein, use described communication means in having the system of multi-sector cell, described nearby sectors is sector in the same sub-district or the sector in the contiguous multi-sector cell.
58. computer-readable medium as claimed in claim 55 also comprises the instruction that is used for following operation:
As described first base station transmitter being operated, use first carrier to sending corresponding to the described program segments of described first segment purpose to send a part corresponding to the described step of described first segment purpose program segments; And
As described second base station transmitter being operated with the part of transmission corresponding to the described step of the program segments of same program segmentation, use second carrier wave to sending corresponding to the described program segments of described first segment purpose, wherein, described second carrier wave has the frequency different with described first carrier.
59. computer-readable medium as claimed in claim 55 also comprises the instruction that is used for following operation:
As described first base station transmitter being operated, the first carrier and first transmission power level are used to send described program segments to send a part corresponding to the described step of described first segment purpose program segments; And
As described second base station transmitter being operated to send a part corresponding to the described step of described first segment purpose program segments, use second carrier wave and second transmission power level to send described first program segments, wherein, described second carrier wave has the frequency different with described first carrier, and described second transmission power level is different with the described first power rank.
60. a computer-readable medium, it comprises and is used to carry out the instruction of wireless terminal being carried out method of operating, and described method comprises:
On first carrier to receiving corresponding to first segment purpose first broadcast singal;
First broadcast singal to described reception is carried out first decode operation;
Determine whether described first decode operation is unsuccessful; And
If it is unsuccessful determining described decode operation, just be tuned to second carrier wave different with described first carrier.
61. computer-readable medium as claimed in claim 60 also comprises the instruction that is used for following operation:
Described wireless terminal is operated, with on second carrier wave to receiving corresponding to described first segment purpose second broadcast singal.
62. computer-readable medium as claimed in claim 61 also comprises the instruction that is used for following operation:
Second broadcast singal to described reception is carried out decode operation.
63. computer-readable medium as claimed in claim 62 also comprises the instruction that is used for following operation:
Determine whether described second decode operation is unsuccessful; And
If it is unsuccessful determining described decode operation, just be tuned to described first carrier.
64., also comprise the instruction that is used for following operation as the described computer-readable medium of claim 63:
In the time can not decoding, between described first and second carrier waves, switch in the mode of carrying out continuously to the signal that is received.
65. a computer-readable medium, it comprises to be used to carry out first base station transmitter and second base station transmitter is carried out the instruction of method of operating, and described method comprises:
Described first base station is operated with transmission information; And
Described second base station that is positioned at contiguous described first base station is operated the described information that sends by described first base station to send, the described information that is sent by described second base station is sent, make described first and second base stations send identical information at different time.
66., also comprise the instruction that is used for following operation as the described computer-readable medium of claim 65:
As a part of described first base station being operated, use first carrier to send described information with the described step that sends information; And
As a part of described second base station being operated with the described step that sends information, use second carrier wave to send described information, described second carrier wave has the frequency different with described first carrier.
67., also comprise the instruction that is used for following operation as the described computer-readable medium of claim 66:
First and second base stations are controlled, on different power ranks, to send described information.
68., also comprise the instruction that is used for following operation as the described computer-readable medium of claim 66:
As a part that sends the described step of described information from described first base station, use at least one OFDM symbol and have the Cyclic Prefix of Cyclic Prefix duration and send the described first information, not with described first and second base station synchronization at Cyclic Prefix in the duration.
69. as the described computer-readable medium of claim 65, wherein, described information is corresponding to the program segments of the program of described first and second base stations transmission, described computer-readable medium also comprises the instruction that is used for following operation:
Described first base station is operated, to send a plurality of different program segments corresponding to described program; And
Described second base station is operated, sending identical a plurality of different program segments, but to the described transmission of segmentation with same information content with by described first base station transmission of segmentation with same information content is had time offset.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65950905P | 2005-03-08 | 2005-03-08 | |
| US60/659,509 | 2005-03-08 | ||
| US60/696,847 | 2005-07-06 | ||
| US60/697,865 | 2005-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101171765A true CN101171765A (en) | 2008-04-30 |
Family
ID=39391400
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800157444A Pending CN101171764A (en) | 2005-03-08 | 2006-03-07 | Methods and apparatus for digital broadcast |
| CNA2006800157641A Pending CN101171765A (en) | 2005-03-08 | 2006-03-07 | Methods and apparatus for efficient digital broadcast signaling in a wireless communications system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800157444A Pending CN101171764A (en) | 2005-03-08 | 2006-03-07 | Methods and apparatus for digital broadcast |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN101171764A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101932140A (en) * | 2009-06-22 | 2010-12-29 | 华为技术有限公司 | Method and base station for adjusting radio frame sending time |
| CN102484630A (en) * | 2009-08-24 | 2012-05-30 | 高通股份有限公司 | Method and apparatus for detecting ofdm signals in the presence of frequency orthogonal ofdm interferers |
| CN102656826A (en) * | 2009-12-17 | 2012-09-05 | 阿尔卡特朗讯 | Optical OFDM transmission having a variable transmission rate |
| CN104737546A (en) * | 2012-09-13 | 2015-06-24 | 索尼公司 | Reception device, reception method, and program |
| CN107181518A (en) * | 2013-02-22 | 2017-09-19 | 欧希亚有限公司 | Wireless communications method and Wireless Telecom Equipment |
| CN109565327A (en) * | 2016-08-19 | 2019-04-02 | 高通股份有限公司 | The non-uniform delivery of synchronization signal |
| WO2019068263A1 (en) * | 2017-10-02 | 2019-04-11 | Mediatek Inc. | Polar bit allocation for partial content extraction |
-
2006
- 2006-03-07 CN CNA2006800157444A patent/CN101171764A/en active Pending
- 2006-03-07 CN CNA2006800157641A patent/CN101171765A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101932140A (en) * | 2009-06-22 | 2010-12-29 | 华为技术有限公司 | Method and base station for adjusting radio frame sending time |
| CN102484630A (en) * | 2009-08-24 | 2012-05-30 | 高通股份有限公司 | Method and apparatus for detecting ofdm signals in the presence of frequency orthogonal ofdm interferers |
| CN102484630B (en) * | 2009-08-24 | 2015-02-04 | 高通股份有限公司 | Method and apparatus for detecting OFDM signals in the presence of frequency orthogonal OFDM interferers |
| CN102656826A (en) * | 2009-12-17 | 2012-09-05 | 阿尔卡特朗讯 | Optical OFDM transmission having a variable transmission rate |
| CN102656826B (en) * | 2009-12-17 | 2016-01-20 | 阿尔卡特朗讯 | There is the optical OFDM transmission of variable transmission rate |
| CN104737546B (en) * | 2012-09-13 | 2018-09-11 | 索尼公司 | Reception device, method of reseptance and program |
| CN104737546A (en) * | 2012-09-13 | 2015-06-24 | 索尼公司 | Reception device, reception method, and program |
| CN107181518A (en) * | 2013-02-22 | 2017-09-19 | 欧希亚有限公司 | Wireless communications method and Wireless Telecom Equipment |
| CN107181518B (en) * | 2013-02-22 | 2022-08-26 | 欧希亚有限公司 | Wireless communication method and wireless communication device |
| US12052083B2 (en) | 2013-02-22 | 2024-07-30 | Ossia Inc. | Method and apparatus for focused data communications |
| CN109565327A (en) * | 2016-08-19 | 2019-04-02 | 高通股份有限公司 | The non-uniform delivery of synchronization signal |
| CN109565327B (en) * | 2016-08-19 | 2022-04-01 | 高通股份有限公司 | Non-uniform transmission of synchronization signals |
| WO2019068263A1 (en) * | 2017-10-02 | 2019-04-11 | Mediatek Inc. | Polar bit allocation for partial content extraction |
| US10925032B2 (en) | 2017-10-02 | 2021-02-16 | Mediatek Inc. | Polar bit allocation for partial content extraction |
| US11805532B2 (en) | 2017-10-02 | 2023-10-31 | Mediatek Inc. | Polar bit allocation for partial content extraction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101171764A (en) | 2008-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100957267B1 (en) | Digital broadcast methods and apparatus | |
| US9680547B2 (en) | Methods for efficient beam training and network control device utilizing the same | |
| CN1943264B (en) | Advanced handover in phased-shifted and time-sliced networks | |
| CN1108719C (en) | Centralized radio network control in a mobile communications system | |
| CN101171765A (en) | Methods and apparatus for efficient digital broadcast signaling in a wireless communications system | |
| KR20180080989A (en) | Method and apparatus for deciding numerology in a wireless communication system | |
| US7426393B2 (en) | Method and system of identifying network services | |
| US20060233359A1 (en) | Apparatus, method and system for providing a broadcasting service in a digital broadcasting system with a single frequency network | |
| CN1248520C (en) | Radio base station, radio terminal and catalog supplier | |
| US20060268673A1 (en) | Method, apparatus, and system for transmitting and receiving data in a digital broadcasting system using a single frequency network | |
| CN101341776A (en) | Methods and apparatus for determining and/or communicating parameter switching point information in wireless communications systems including wireless terminals supporting multiple wireless connection | |
| UA82836C2 (en) | Apparatus for multiple transmissions (variants) and a method for broadcasting to a group of subscribers | |
| CN101507135B (en) | Space-time/space-frequency coding for multi-site and multi-beam transmission | |
| WO2006131797A2 (en) | Signaling network id in tps bits | |
| KR20070053784A (en) | Broadcast channel structure in a mobile communication systems | |
| KR20080083671A (en) | Broadcast-centric cellular communication system, method, and mobile station | |
| US9173195B2 (en) | Method and apparatus for transmitting/receiving control information in broadcast communication system | |
| CN100568753C (en) | Carrier search methods and equipment | |
| JP5505423B2 (en) | Method, base station, and user equipment for reducing cognitive pilot channel bandwidth | |
| CN101461204B (en) | Use of overhead in a wireless communication system | |
| KR100713418B1 (en) | Appartus and method for informing receiving sensitivity in a digital multimedia broadcasting system and system thereof | |
| CN101500288B (en) | Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1114702 Country of ref document: HK |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20081212 Address after: American California Applicant after: Qualcomm Inc. Address before: American New Jersey Applicant before: Flarion Technologies, Inc. |
|
| ASS | Succession or assignment of patent right |
Owner name: QUALCOMM INC. Free format text: FORMER OWNER: QUALCOMM FLARION TECHNOLOGIES INC. Effective date: 20081212 |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080430 |
|
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: WD Ref document number: 1114702 Country of ref document: HK |