Signal transceiving method in a broadcast multicast system and equipment

A technology for broadcast multicast and broadcast multicast services, applied in the field of wireless broadcast multicast, can solve problems such as loss of synchronization, AGC gain error saturation, saturation distortion, etc., to achieve the effects of convenient implementation, reduced transmission tasks, and power saving

Active Publication Date: 2014-07-30
SPREADTRUM COMM (SHANGHAI) CO LTD
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Problems solved by technology

[0025] The purpose of the present invention is to provide a method and device for transmitting and receiving signals in a broadcast multicast system, which can solve the problem of incorrect saturation of the AGC gain of the UE, loss of synchronization, and saturation distortion when the signal is restored due to the absence of broadcast and multicast service data delivery and other technical issues

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  • Signal transceiving method in a broadcast multicast system and equipment
  • Signal transceiving method in a broadcast multicast system and equipment
  • Signal transceiving method in a broadcast multicast system and equipment

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Embodiment Construction

[0053] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0054] The technical solutions of the present invention are described below by taking the TD-MBMS system as an example, but these technical solutions are not limited to TD-MBMS, and can also be used in other wireless broadcast multicast systems, such as Wideband Code Division Multiple Access (WCDMA) Multiple Access, referred to as "WCDMA") network MBMS system, Microwave Access Worldwide Interoperability for Microwave Access (Worldwide Interoperability for Microwave Access, referred to as "WiMAX") network Multicast Broadcast Service (Multicast Broadcast Service, referred to as "MBS") system, etc.

[0055] The first embodiment of the present invention relates to a signal transmission method in a broadcast multicast system, image 3 It show...

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Abstract

The invention relates to the field of wireless communication, discloses a signal transceiving method in a broadcast multicast system and equipment and is capable of solving the problems of AGC gain error saturation of UE and desynchronizing caused by no broadcast multicast service data issuing, as well as saturation distortion caused in signal recovery, etc. In the invention, when the broadcast multicast service data is not issued, an SB signal is transmitted through FACH. In TTI without issued MBMS service data, the MBMS time slot of each radio frame transmits the SB signal, or the SB signal is transmitted only at the MBMS service time slot of a first radio frame. Under the condition that no MBMS service data is issued in a plurality of continuous TTIs, the SB signal can be transmitted only in the first one of the continuous TTIs. And all NodeBs belonging to one single frequency network can adopt the same rule to transmit the SB signal.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to wireless broadcast multicast technology. Background technique [0002] Mobile TV is considered to be one of the most promising multimedia services in the era of the third generation mobile communication (The Third Generation, referred to as "3G"). It integrates many media features such as multimedia, real-time, and interaction. obtain services. At present, the research on this service is very active, and there are more than ten kinds of relevant transmission standards, which can be divided into three categories, based on terrestrial broadcasting, satellite broadcasting and mobile communication technology. [0003] Among them, the technology based on the mobile network was initially realized by means of mobile streaming media. Although the demand is met to a certain extent, it is not satisfactory in terms of bandwidth, effect, number of users, cost, etc., so Multimedia Broa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005H04L1/00
Inventor 刘志东陈国础张治师延山
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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