TWI255119B - Transmitting data to a dual-mode communication unit - Google Patents

Abstract

A method of transmitting data to a dual-mode communication unit, comprising: a radio broadcast system transmitting a block of data to the communication unit over a broadcast radio interface and feeding the block of data to a cellular communication system; the communication unit receiving the block of data from the radio broadcast system by operating in a radio broadcast receipt mode, determining whether the block of data has been received satisfactorily or erroneously, and transmitting, if the data has been received erroneously, a request for correction data to the cellular communication system over a cellular radio interface; the cellular communication system, in response to receiving the request, transmitting correction data to the communication unit over the cellular radio transmitting correction data to the communication unit over the cellular radio interface; and the communication unit receiving the correction data from the cellular radio communication system by operating in a cellular radio receipt mode.

Description

V. INSTRUCTIONS OF THE INVENTION (Invention Fields 2 and Radio Broadcasting Systems and Honeycomb Radios: It is known in the field of dual-mode overnight inventions that can operate on both systems] Yes: for example, digital images are wide enough for broadcast systems such as digital sound broadcasting (DAB), which can be transmitted to a communication unit such as a remote terminal to deliver the data, which will be in the data stream. Apply some positive errors to more formal redundancy. The FEC must be strong enough to give the remote end a good chance to receive data plus redundancy, and restore the original data / there is a bit error. In general, The redundancy of the FEC type application is almost: in some cases, the bandwidth is wasted 'because the FEC is out of size except for the far end far end = receiving hx. The broadcast system has no return path, so there is naturally no chance Reduce FEC redundancy and replace it with an ARQ (Automatic Repeat Request) type of redundancy on a time-consuming basis. FEC and ARQ methods are well known in the art, and both are already Two-way radio systems are utilized in cellular systems. However, one drawback of current broadcast systems is that due to the lack of ARQ, the FEC must be out of size for most remote terminal receiver scenarios. This wastes bandwidth and therefore Insufficient spectrum resources are wasted. This waste also hinders the transmission of other content. Therefore, it is desirable to provide ARQ for broadcast data in order to alleviate the above disadvantages. DETAILED DESCRIPTION OF THE INVENTION 1255119 V. INSTRUCTIONS (2 2 ==: STATUS - STATEMENT) For example, the method of applying for the patent range of the first to the double-mode communication unit is provided in the following section: according to the format of the present invention, the radio transmission of the data to the dual-mode communication unit is provided. One of the operations of Fangwei, the method of the 30th item of the patent scope of the honeycomb patent. According to the fourth aspect of the current affairs, the party providing the main operation-honeycomb radio communication system: In accordance with the present invention - the fifth aspect, a method for receiving data in a dual mode communication unit as claimed is provided. 1 According to the present invention - a sixth aspect A device for providing a dual mode communication unit as shown in the figure. 44 items according to a seventh aspect of the present invention provide a dual mode communication unit of the present invention. 'Monthly patent section 54 is in accordance with the present invention. A radio broadcast system according to a ninth aspect of the present invention. A cellular communication system according to a ninth aspect of the present invention. According to a tenth aspect of the present invention, a (four) memory processor can execute instructions. The continuation of the invention is as described in the accompanying drawings, which is to be taken as an example. The specific installation of the invention is provided as the scope of the patent application. 55 items are provided as in the 56th scope of the patent application. If the scope of the patent application is 57, I____ _____ _ 6 - This paper size applies to the Chinese National Standard (CNS) A4 specification 1255119 ' --------- B7 V. INSTRUCTIONS (4) """ The present invention is applicable to any suitable cellular system. In this embodiment, the cellular communication system is a Universal Mobile Phone Standard (UMTs) system.曰 or more communication units or remote terminals (25 〇), in this embodiment 疋 mobile phones, are capable of accessing both the broadcast radio interface (240) and the cellular radio interface (230). / Figure 3 shows another possible arrangement of a system (300) comprising a combination of a broadcast system connected to a cellular system. In this example, a separate cellular core network (305) is connected via a link (320) to a separate broadcast core network (31〇), in this case the link (32〇) is a direct Access landline. The cellular core network (305) is connected to a cellular access network (22 〇), and these together form a cellular radio communication system. The broadcast core network (3ι〇) is connected to the broadcast access network (210), and these together constitute a radio broadcast system. The remaining components in Figure 3 are depicted in Figure 2. In this particular embodiment, the broadcast system broadcasts the transport data block over the broadcast radio interface 24〇. The broadcast system additionally feeds the data block to the cellular communication system. In the example of FIG. 2, the data is transmitted internally in the hybrid core network (2〇〇), and the data is transmitted through the example in FIG. 3 (32〇). ) Feed. Port The processing steps performed by the remote terminal (250) are shown in FIG. In this example, FEC is a block-based FEC, and arq is a stop and wait type of ARQ. Both are widely known in this technique. It will be apparent to those skilled in the art that other FEC and ARQ schemes may be substituted. The remote terminal (250) receives (step 410) an encoded data (120) block via the broadcast radio interface (24). Then the remote terminal application -8 - the paper scale applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) 1255119 V. Invention description (5 FEC decoding algorithm (step 42) to obtain the estimated value of the block Then the remote terminal two shells (10〇) the original area 430 steps) to judge from the 42nd step; take the J false detection 'algorithm (the original data (10.) correct notation: 3 is the original The FFr ancient Anxi μ plus bucket, this 乂疋 provides error detection ability - special ~ two two 'can be - check and (che - value execution special heart check (CRC), which check and (heart mountain original In the original block of the data (100). 3 It is widely known in Lu Xun and in this technique, so there is no need to go further here. If the remote end machine does not detect an error ( Step 440), accept the data. If there is no more data to receive ("50 steps", then the program ends. If there is still data to receive (step 450), the remote terminal receives (step 41) encoding Below the data block. However, if the remote terminal is in step 440 The estimated value of the initial data block is sent m, and the remote terminal opportunity request (47G (4)) correction data (in the correction material of this embodiment is the erroneously received data block retransmission). This request uses the hive. The radio interface (230) is transmitted to the cellular communication system, and then the cellular communication system retransmits the requested data block to the remote terminal (25〇) via the cellular radio interface (230). The remote terminal waits and then receives (step 48) the arq retransmission. In a different embodiment, the ARQ retransmission may instead be delivered using the broadcast radio interface (240). Upon receipt of the ARq retransmission, The remote terminal continues the decoding process (step 42) and subsequent functions in the conventional mode. Obviously 'by repeating the method described with reference to Figure 4, no -9 - the paper scale applies to China豕Standard (CNS) A4 specification (210X297 public) A7 B7

1255119 interrupts the delivery of data streams via the broadcast radio interface, and the same data can be received via a broadcast radio interface (240) for a large number of independent remote terminals that follow the invention, while individual ARQ requests for individual remote terminals are provided by the hive System support. In the above specific embodiment, the remote terminal (25〇) can be distinguished between a radio broadcast receiving mode and a cellular wireless receiving mode by any known method of winter, and in either The person operates, or controls the switching of his door (and vice versa). A preferred method is to provide two parallel operating receive chains, one operating on the broadcast interface and the other operating on the cellular interface. In a preferred embodiment, the stream of broadcast data blocks in the remote terminal (250) passes through a buffer before the data is released until any application is made. This buffer holds enough information to allow ARQ to operate before the data is released to the application in the remote terminal (250). The time delay from this approach is usually no longer than the time range caused by the ARQ agreement on the radio broadcast system. In this particular embodiment, the data transmitted to remote terminal unit 250 is software for download to terminal unit 250, that is, the mobile telephone that constitutes terminal unit 250 in this embodiment is a software-defined radio. However, the present invention I is applicable to any material that needs to be transmitted to a remote terminal or other communication unit, including, for example, DVB and/or DAB content. As a further advantage, the operator of the broadcast system can change the applied fec according to the rate of ARQ requests arriving via the cellular system. A high-level ARQ kiss seeks to apply insufficient FEC redundancy. The number of fec redundancy

Order

1255119

1255119 A7 B7 V. INSTRUCTIONS (8) It can be appreciated that the use of an mobile cellular system to provide ARQ for the above broadcast data helps provide the following advantages: • The ability to deliver more content on the broadcast radio interface. • The efficiency of the broadcast interface enhancement. • Improved capabilities and benefits of a customized broadcast system, and improved utilization of the capabilities and benefits of a customized cellular system. -12-

Binding

This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm)

Claims (1)

Li application ~ called patent scope replacement (94 years of the month) Patent application scope L ~ kind of transmission of data to a dual-mode communication list ^ Wanfa, including · · - - - - - - - - - - :,,,- material block to communication unit; special transport I-line electric broadcasting system feeds data block to a system; j-bee-type radio communication communication unit uses radio-broadcasting system in the radio-receiving mode Receiving the data block; the black, spring communication unit determines whether the data block has been sufficiently received, and if the data is not sufficiently received, the communication unit transmits a request for the revised data to the hive on a honeycomb type benefit line ^ Communication system, / • as in the method of claim 1, the further packaged communication system transmits the correction data to the communication unit on the cellular radio surface after receiving the request; and from the communication unit Operating in a cellular radio reception mode, the cellular radio communication system receives correction data. 3. The method of claim 2, wherein the correction data is transmitted by the cellular communication system so as to be uninterrupted from the radio to the further data block of the communication unit. 4. The method of claim 1 of the patent scope further includes: the cellular communication system forwards the request to the radio broadcast system after receiving the request; 'transmitting the correction data to the radio broadcast system on the broadcast radio interface to The communication unit; and the communication unit operate from a wireless 1255119 A8 B8 by operating in a radio broadcast reception mode The package-only system receives the correction data. 5. If the method of claim j is applied, the error correction is transmitted, and the communication unit relies on the implementation; the shore; section = block determines whether the data block has received the error error by the forward error method. Apply for the method of item i of the patent scope, and the remaining check = error correction transmission, and the communication list; by == shield ring redundancy - cyclic redundancy check (CRC) to determine the asset value execution. Nile has fully received the retransmission of the block of the patent application scope. > Positive information contains information 8 · If you apply for patent scope! The method of the item is used to supplement the seven-port-eight-TU 枓 枓 枓 枓 枓 枓 枓 枓 枓 枓 枓 枓 枓 枓 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 Use < pre-buffer to buffer the received data block. 1 (λ = 申 = patent scope section; method 1) wherein the broadcast system is based on the level of the request for correction data received from the communication unit associated with the previously transmitted data, the change is applied to the transmission to the plurality of communication units The level of error correction of the data block. 11. The method of claim 1, wherein the broadcast system changes the applied error correction to a level to reduce or minimize the transmission data block and any correction data to the plural The total cost of a communication unit. 12. The method of claim 11, wherein the broadcasting system estimates the transmission cost by analyzing the broadcast bandwidth consumed by the radio broadcast of the poor block. National Standard (CNS) Α4 Specifications (210Χ 297 mm) 1255119 The cost of materials and any revised information. The method of claim 12, wherein the broadcast system further estimates the cost of transmitting the data and any revised data by analyzing the request and/or the cellular power consumption consumed by the transmission of the revised data. 14·If you apply for a patent scope! The method of the item, wherein if there is no mechanism for requesting correction of the data, the broadcast system uses a lower level of error correction than is required by the communication unit to adequately receive the data. 15. The method of claim 1, wherein the radio broadcast system is a digital first broadcast system or a digital video broadcast system. · ^ As in the method of applying for the scope of the patent, the data block is the software downloaded to the communication unit. 17. A radio broadcast method for transmitting data to a dual mode communication unit, comprising: 彳 transmitting a data block to a communication unit on a broadcast radio interface; and feeding a data block to a cellular radio of the service communication unit Communication system. ^ 18. The method of claim 17, further comprising: k receiving, by the cellular radio communication system, an error I from the communication unit, and transmitting the correction data to the communication unit on the broadcast radio interface. 19. The method of claim 17, wherein the data block is transmitted with a positive error correction. 2. The method of claim 17, wherein the data block is transmitted with a cyclic redundancy check error correction. -3- This paper scale applies to the towel g g home standard (CNS) Μ specification ((10)〉< tearing the male Dong) '一 ^----- 1255119 The scope of application for patents • For example, the scope of the application for patents; [Section 7 of the party, Fu Gan a ^, and Xin Wan, where the error correction data package winter - the retransmission of the greedy block. ^. 22.= The method of applying for the scope of patents, item 17, in which the error correction is included in the package: for the communication unit to calculate the combination with the original transmitted data block; The hole 23·, as in the patent application, the method, further includes a layer 35 of the correction data received from the communication unit 70 related to the data transmitted by the first item, and the change is applied to the transmission to the plurality of communication units. The level of error correction of the block. w 2 II applies the method of the 23rd item of the benefit range, in which the broadcast system changes should be changed to a level of 'level' to reduce or minimize the total cost of transferring the data area ghost and any revised data to a plurality of communication units. . The method of applying for patent (4) 24, the method of estimating the cost of transmitting data and any revised data by analyzing the broadcast bandwidth consumed by the radio broadcast of the asset block. 〃 26·: The method of applying for patent scope 25 further includes estimating the cost of transmitting data and any revised data by analyzing the cellular radio bandwidth consumed by the cellular radio communication system and the communication unit. ^ 27·= The method of applying for patent scope 17 further includes the use of a lower level of error correction than is required by the communication unit to fully receive the information if there is no mechanism for requesting revision of the data. 28. The method of claim i, wherein the data block is a digital sound or a digital image. 29. The method of any one of claims 17 to 27, wherein the data -4 - the paper size applies to the Chinese National Standard (CNS) A4 specification (210X 297 mm) A block is a software that is downloaded to a communication unit. 30. — A method of operating a cellular wireless k汛 system, including: ...line broadcast system receiving—data block; in the cellular communication system—the hive> mouth—the fruit line pen interface At the same time, the request for receiving the revised data is received; Λ after receiving the request, the hive is > to the communication unit. The method of modifying the scope of the patent application, item 30, in the form of a retransmission of the data package block. T 32 · If the scope of the patent application is the third item, the revised data contains enough data for the communication unit to calculate and the external redundancy received. The amount of lost data combined with the branch is 33. The method of the radio communication system comprises: k. The one-line electric broadcast system receives a data block. · Receives the correction data from a communication early element in a honeycomb type of the honeycomb communication system of the honeycomb communication system Request; after receiving the request, forward the request to the Helmet's + "K singular line radio broadcasting system. 34. - A method of receiving data in a dual mode communication unit, the package is received by a radio broadcast In the mode, the man-in-eight T operation, receiving a data block from a radio broadcast system; ~ and if the repair data is not adequately picked up, please judge whether the data block has been fully received, and the data is received in a cellular radio interface. Uploading to a cellular communication system; and the cellular type receiving the correction data from the cellular communication system-5- Ϊ255119, the scope of patent application The system is configured to receive the data block from the 直 直 仗 仗 and the electric broadcast system. Μ·If you apply for the method of Article 34 of the patent scope, it further includes: The precision operation is performed in the cellular-based radio receiving mode, and the correction data is received from the cellular-type benefit and the spring communication system. 36. If the method of claim 34 is applied, further package: by operating in the radio-receiving mode, the radio broadcast system receives the correction data. ', 37 · If you apply for the patent scope, the method of item 34, and twist > $ τ ” in the Becco block contains the positive, the Thai 疋 0 has been received without any points, through the application of an error detection Algorithm execution. Please refer to the method of Clause 34, in which the data block contains several check error corrections, and the step of judging whether the data block has been performed includes the checksum value execution - cyclic redundancy check. 9.=; The method of claim 34, wherein the amendment data contains a retransmission of the data block. ηBecco 40. The redundancy of the method of claim 34, Η $,, winter, / , it 〃正贝枓 contains an additional two or more and the 10,000 law further includes the use of the additional redundancy to calculate the missing data. "Department ~ 41. If you apply for the patent scope, method 34, —|Spoon Μ Buffer stores the data blocks received. G η is used. The data block is a digital sound. 42. For example, the method of claim 34 of the patent scope ¥ or digital image. The data block is downloaded to 43. The method of the 34th item of the patent application. This paper (discriminate A4m^X29m)_ yJ255ll9 A8 B8 C8 D8, the scope of patent application communication unit software. 44. A dual mode communication unit apparatus, comprising: means for receiving a data block, the apparatus for receiving a data block from a radio broadcast system by operating in a radio broadcast receiving mode; Determining whether the data block 'and the transmitting device have been sufficiently received, and if the data is not sufficiently received, transmitting a request for correcting data to a cellular communication system on a cellular radio interface; and receiving the modified data The child correction data is received, wherein the cellular communication system is configured to receive the data block from the cable radio broadcast system. 45. The apparatus of claim 44, further comprising: means for receiving the correction data by operating in a cellular radio receiving mode. 46. If the device of Patent Application No. 44 is applied, further package: The device is used to operate in the *Yi line Leiku 4 inflammation 1 W > ^ ”, and the private broadcast receiving mode, the shirt line The broadcasting system receives the correction data. 47·If the application for patent scope 44 is installed, the β, σ Λ , and Qianbei枓 blocks contain positive !I 夂祆 corrections, and are used to judge the data block _ τ ^ , where驾 The driving that has been received without any distinction is operated by the application of an error detection algorithm. 48. If the device of the 44th patent application area is filed, the data area of the common area is corrected; r redundancy check error correction, And the device for judging the receipt of the cake L brothers and mouths, including whether the block is sufficient for checking the block; the device. Execution - Cyclic Redundancy Check 6 Paper Quality Standards (CNS) A4 specification (210 X 297, $ A8 B8 C8 D8 P55119 VI. Patent application scope 49. The device of claim 44, in which the correction data sub-block is re-transmitted. 3 shell material 50. The device of the 44th item, in which the redundancy of the correction is made and the device is further packaged Means for calculating the missing data using the extra redundancy that was originally received by :::: 〃 〜 51 51. The device of claim 44, further comprising a 纟 d. Used to buffer before use. Store the received data block. ~ Area 52·: Application:: The device of the 44th item of the profit range is suitable for receiving data blocks containing digital prints or digital images. Ear 53 · If the patent application scope is 44 The device is adapted to receive a data block such as a software. The 54.-dual mode communication unit includes the device according to any one of the claims. 』 Among the 3 members, a radio broadcast system, The device includes: a device for transmitting a data block, configured to transmit a data block to a communication unit; and a spring packet interface feeding device for feeding the data block to an electronic communication system; a bee-type wireless receiving device for receiving a request for correction data by the cellular radio relay unit; and i, a device for transmitting correction data from the system, which is used for "Transfer correction data to the communication unit.",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, System-8 - This paper scale applies to China National Standard (CNS) A4 specification (210 X 297 mm) I. Patent application scope On the 4th of the month, the sneak peek is to receive a data block for the page i; receiving a request for a cellular radio system for the request of the cellular communication system; and receiving a correction data by the communication unit a transmission device, transmitting a correction on the _, λ plane; receiving the request 'in the cellular radio broadcast system; to the communication unit, or forwarding the request to the storage processor .w the storage medium for the execution of the instructions, with or with multiple processors holding the cup 4 ^ * for the fe system - the method of the item. Bessie Ren - -9-