Method and terminal for receiving data in broadcasting system
A receiving method and a broadcasting system technology, applied in the field of mobile multimedia broadcasting systems, can solve the problems of time consumption, manpower and material resources, lack of unified data services, restrictions on the launch and application of new data services, etc., so as to enhance versatility and improve Transmission reliability, cost-saving effect
Inactive Publication Date: 2008-06-25
新奇点智能科技集团有限公司
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Problems solved by technology
[0007] In addition, in the existing broadcasting system, there is no unified standard to support and guarantee data services, and terminal manufacturers often need to develop corresponding software and hardware for the newly launched data service standards
Both the formulation of data service standards and the development of terminal manufacturers for a certain data service consume precious time, manpower and material resources
Such a model restricts the launch and application of new data services
Method used
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[0057] The technical solution of the present invention will be described in more detail below with reference to the drawings and embodiments.
[0058] Aiming at the problems existing in the existing technology, a new transmission technology should be adopted to transmit the data broadcasting service data in the broadcasting system. The core idea is: to encapsulate the service data into an XPE (Extensible Protocol Encapsulation) package in a uniform format , and transmit these XPE packets as the content of the data segment of the multiplexing subframe through the broadcast network. The business data to be transmitted includes two types, one is stream mode data, which refers to audio and video data, ECM (authorization control information), EMM (authorization management information), audio broadcasting, data stream data services, etc. in the form of data stream The business type presented to the user; the other type is the file mode data presented to the user in the form of a fil...
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The invention discloses a data receiving method and a terminal in a broadcast system. The receiving method includes the steps that: A. an expandable protocol encapsulation XPE packet is extracted from a multiplexed sub-frame after broadcast data is received; B. the net load of the data in the XPE packet is extracted according to the information in an XPE head; C. corresponding processing on the business data is conducted according to the information in the XPE head. The terminal includes a receiving module which is used for receiving the broadcast data, extracting the XPE packet from the data segment of the multiplexed sub-frame, extracting the net load of the data in the XPE packet according to the information in the XPE head, and acquiring the business data; corresponding processing on the business data is conducted according to the information in the XPE head. The invention can ensure the terminal to receive various business data in the broadcast system by a simple, easy and uniform manner, the reception complexity is lowered, and the universality and the expansion capacity of the terminal are improved.
Description
technical field [0001] The invention relates to a mobile multimedia broadcasting system, in particular to a data receiving method and terminal in the broadcasting system. Background technique [0002] In the existing broadcasting system, audio and video data is usually transmitted in a multiplexed manner: a broadcast channel frame is composed of multiple multiplexed frames, and each multiplexed frame is composed of a multiplexed frame header, one or more multiplexed subframes and padding composition. As shown in FIG. 1 , each multiplexed subframe is composed of a subframe header, a video segment, an audio segment and a data segment, wherein the subframe header further includes some control information and reserved bits. Usually, one multiplexed subframe is a 1-second data stream of a set of video and audio programs, wherein the size of the video stream is 384kbit, and the size of the audio stream is 64kbit. [0003] Based on the existing multiplexing frame structure, strea...
Claims
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IPC IPC(8): H04L1/00H04L29/06H04H60/82H04N7/52H04H1/00
Inventor 张辉王西强郭洛玮吕义柱邹畅捷肖兵杨君云孙家旺
Owner 新奇点智能科技集团有限公司