ITU-R QUESTION 89-16-2004 User requirements for electronic news gathering《电子新闻采访的用户要求》.pdf

1、- 1 - Place des Nations Telephone +41 22 730 51 11 Telex 421 000 uit ch E-mail: itumailitu.int CH-1211 Geneva 20 Telefax Gr3: +41 22 733 72 56 Telegram ITU GENEVE www.itu.int Switzerland Gr4: +41 22 730 65 00 QUESTION ITU-R 89-1/6 User requirements for electronic news gathering (1995-2004) The ITU R

2、adiocommunication Assembly, considering a) that electronic news gathering (ENG) crews must be able to operate in all parts of the world, and in all venues where a news event breaks; b) that news coverage produced by ENG crews must be delivered to the appropriate television facility, which is often r

3、emote from the area where the crews operate; c) that delivery of news coverage may be effected, depending on circumstances: by physical delivery of recorded ENG videocassettes; by transmission of the signal over portable microwave links; by injection of the signal in a switched telecommunication net

4、work; by satellite transmission; d) that the user requirements specific to ENG operation in terms of: received picture quality; received sound quality; number of sound channels; transmission channel bandwidth and reliability; equipment size and weight; talkback facilities, etc.; are often different

5、from those that apply to normal television contribution transmission, and they are peculiar to the operating environment of ENG; e) that such user requirements are generally independent from the delivery method used, decides that the following Question should be studied 1 What are the user requireme

6、nts peculiar to ENG operation, in terms of: received picture quality; received sound quality; latency; number of sound channels; transmission channel bandwidth, transmission equipment size, weight, power consumption, reliability, etc.; talkback facilities, etc.? 2 Which are the technical means to be

7、 recommended in order to meet the user requirements peculiar to ENG operation? - 2 - 3 How do those user requirements translate in terms of expected performance in the delivery of ENG news coverage: by physical delivery of recorded ENG video cassettes; by transmission of the signal over portable mic

8、rowave links; by injection of the signal in a telecommunication network; by satellite transmission (SNG)? NOTE 1 Close cooperation with Radiocommunication Study Groups 4 and 9 and Telecommunication Standardization Study Group 9 will be required in the study of this Question, which should be brought to their attention, further decides 1 that the results of the above studies should be included in (a) Recommendation(s); 2 that the above studies should be completed by 2007. Category: S2