通信人家园

标题: 3GPP定义APT 600MHz [查看完整版帖子] [打印本页]

时间: 2022-7-22 10:08

作者: yz98061 标题: 3GPP定义APT 600MHz

来源:blog.3g4g.co.uk/2022/07/apt-600-mhz-band-gets-approval-from-3gpp.html
APT 600 MHz Band Gets Approval from 3GPP

The current 600 MHz 5G band (n71) is getting an extension as 3GPP approves plan for APT 600 MHz band. Back in April, the 29th meeting of the APT Wireless Group (AWG-29) organized by the Asia Pacific Telecommunity (APT) concluded with the final approval of the new APT 600 MHz band plan that hoped to open an additional 40+40 MHz prime UHF spectrum. A similar approach back in 2013 resulted in the 45+45 MHz in the 700 MHz band, known in 3GPP as n28.

3GPP TSG RAN 96 (all docs here) approved a new work item to standardize the APT 600 MHz band plan which was initially proposed by the ITU-APT Foundation of India (IAFI).

RP-221778 (revision of RP-221062), provides a detailed justification for this new band. Quoting from the document:

The 470-694 MHz frequency range is allocated to the broadcasting service and mobile service on a co-primary basis in ITU Region 3. The frequency band 470-698 MHz, or parts thereof, was identified by WRC-15 in 7 countries in Region 3 through new footnote No. 5.296A for use by those administrations as listed wishing to implement terrestrial IMT systems. In addition, there is interest from other significant markets to do the same. Elsewhere, USA, Mexico and several other countries in ITU Region 2 also identified this band for IMT through footnotes 5.295 and 5.308A. It is noted that resolves 2 of revised Resolution 224 (Rev.WRC-19) to encourage administrations to take into account results of the existing relevant ITU Radio communication Sector studies, when implementing IMT applications/systems in the frequency bands 694-862 MHz in Region 1, in the frequency band 470-806 MHz in Region 2, in the frequency band 790-862 MHz in Region 3, in the frequency band 470-698 MHz, or portions thereof, for those administrations mentioned in No. 5.296A, and in the frequency band 698 790 MHz, or portions thereof, for those administrations mentioned in No. 5.313A.

Spectrum below 1 GHz is expectedly well suited for mobile broadband applications. In particular, the unique propagation characteristics of the bands below 1 GHz allow for wider area coverage, which in turn requires fewer infrastructures and facilitates service delivery to rural or sparsely populated areas. In this regard, the 700MHz ecosystem is growing swiftly: there are over 34 commercial networks deployments. The APT700 band plan coming out from Region 3 played a huge role in its success globally. Outside of APAC, countries in Region 2 have adopted or plan to adopt the APT700 band plan (3GPP band 28) for LTE system deployments. The lower duplexer of APT700 plan has also been adopted for Region 1 since the conclusion of WRC-15.

As the utilisation of the 700MHz spectrum increases over time, it is desirable to look at additional spectrum that could be considered as a companion besides 3GPP Band 28. Therefore, the use of parts of the 600MHz band for the mobile broadband service would provide a vital means of delivering high quality, wide area broadband services including in rural areas and deep inside buildings. The timely availability of frequency arrangements is essential for the development of IMT specifications and standards and the early consideration by Administrations in the footnotes referred to above of suitable frequency arrangements.

The APT region is very diverse and consists of highly developed and developing countries and some with extremely large and rural population base. The sub 1 GHz bands is well suited for the later.

During the last year or so, 3GPP RAN 4 has completed a study item on the feasibility of various duplex filter options for use in this band. The results of this study are documented in TR 38.860. This study was sent to the AWG in an LS RP-212629 in Sep 2021 with a request to provide guidance on a preferred band plan and information on regulatory aspects for the normative work to begin. The AWG 28 meeting has considered the request of the 3GPP and has provided a response to this LS. In this response the LS has indicated a preference for option B1 (full band) and has also requested for the work to begin immediately with a view to completion by Dec 2022. Additionally, the answers to the regulatory questions sought by the 3GPP have now been provided via a reply LS RP 221045.

The band plan for the option B1 that has a single duplexer or full band- is shown in Table 1 below.

The Tx-Rx is "reverse-duplex"; in other words, the downlink frequency band is below the duplex gap while the uplink frequency band is above the duplex gap. This arrangement is opposite to conventional notation; however, for this band, it provides the benefit of aligning the uplink band adjacent to 3GPP band 28 thereby minimizing interference conditions at the 703 MHz boundary.

Accordingly, the companies listed here request 3GPP to start normative work on the following option.

Option B1 with a single duplexer

时间: 2022-7-22 11:51

作者: 马云的云

single duplexer 好评，不用搞俩了，n28搞俩duplexer太差劲了。

时间: 2022-7-22 11:51

作者: 马云的云

本帖最后由马云的云于 2022-7-22 11:52 编辑

DL：612-652MHz，UL：663-703MHz，Bandwidth 40MHz，这个方案不错。

时间: 2022-7-22 11:53

作者: yz98061

马云的云发表于 2022-7-22 11:51
single duplexer 好评，不用搞俩了，n28搞俩duplexer太差劲了。

实际能做出来不？现在n71是分n71A和B的，这个理论是n71 extension

时间: 2022-7-22 11:55

作者: just10086

本帖最后由 just10086 于 2022-7-22 17:34 编辑

JustificationThe 470-694 MHz frequency range is allocated to the broadcasting service and mobile service on a co-primary basis in ITU Region 3. The frequency band 470-698 MHz, or parts thereof, was identified by WRC-15 in 7 countries in Region 3 through new footnote No. 5.296A for use by those administrations as listed wishing to implement terrestrial IMT systems. In addition, there is interest from other significant markets to do the same. Elsewhere, USA, Mexico and several other countries in ITU Region 2 also identified this band for IMT through footnotes 5.295 and 5.308A. It is noted that resolves 2 of revised Resolution 224 (Rev.WRC-19) to encourage administrations to take into account results of the existing relevant ITU Radio communication Sector studies, when implementing IMT applications/systems in the frequency bands 694-862 MHz in Region 1, in the frequency band 470-806 MHz in Region 2, in the frequency band 790-862 MHz in Region 3, in the frequency band 470-698 MHz, or portions thereof, for those administrations mentioned in No. 5.296A, and in the frequency band 698790 MHz, or portions thereof, for those administrations mentioned in No. 5.313A.Spectrum below 1 GHz is expectedly well suited for mobile broadband applications. In particular, the unique propagation characteristics of the bands below 1 GHz allow for wider area coverage, which in turn requires fewer infrastructures and facilitates service delivery to rural or sparsely populated areas. In this regard, the 700MHz ecosystem is growing swiftly: there are over 34 commercial networks deployments.[ https://gsacom.com/paper/gsa-apt ... eployments-devices/] The APT700 band plan coming out from Region 3 played a huge role in its success globally. Outside of APAC, countries in Region 2 have adopted or plan to adopt the APT700 band plan (3GPP band 28) for LTE system deployments. The lower duplexer of APT700 plan has also been adopted for Region 1 since the conclusion of WRC-15.As the utilisation of the 700MHz spectrum increases over time, it is desirable to look at additional spectrum that could be considered as a companion besides 3GPP Band 28. Therefore, the use of parts of the 600MHz band for the mobile broadband service would provide a vital means of delivering high quality, wide area broadband services including in rural areas and deep inside buildings. The timely availability of frequency arrangements is essential for the development of IMT specifications and standards and the early consideration by Administrations in the footnotes referred to above of suitable frequency arrangements. The APT region is very diverse and consists of highly developed and developing countries and some with extremely large and rural population base. The sub 1 GHz bands is well suited for the later.During the last year or so, 3GPP RAN 4 has completed a study item on the feasibility of various duplex filter options for use in this band. The results of this study are documented in TR 38.860. This study was sent to the AWG in an LS RP-212629 in Sep 2021 with a request to provide guidance on a preferred band plan and information on regulatory aspects for the normative work to begin. The AWG 28 meeting has considered the request of the 3GPP and has provided a response to this LS. In this response the LS has indicated a preference for option B1 (full band) and has also requested for the work to begin immediately with a view to completion by Dec 2022. Additionally, the answers to the regulatory questions sought by the 3GPP have now been provided via a reply LS RP 221045.The band plan for the option B1 that has a single duplexer or full band- is shown in Table 1 below.The Tx-Rx is "reverse-duplex"; in other words, the downlink frequency band is below the duplex gap while the uplink frequency band is above the duplex gap. This arrangement is opposite to conventional notation; however, for this band, it provides the benefit of aligning the uplink band adjacent to 3GPP band 28 thereby minimizing interference conditions at the 703 MHz boundary.

理由470-694 MHz 频率范围划分给国际电联第 3 区共同主要的广播业务和移动业务。470-698 MHz 频段或其部分频段已由 WRC-15 在该区域的 7 个国家确定3 通过新的脚注第 5.296A 号供列出的那些希望实施地面 IMT 系统的主管部门使用。此外，其他重要市场也有兴趣这样做。在其他地方，美国、墨西哥和国际电联 2 区的其他几个国家也通过脚注 5.295 和 5.308A 为 IMT 确定了该频段。注意到经修订的第 224 号决议（Rev.WRC-19）的第 2 项决议鼓励主管部门在 694-862 MHz 频段内实施 IMT 应用/系统时考虑现有相关国际电联无线电通信部门研究的结果。 1区，2区470-806 MHz频段，3区790-862 MHz频段，470-698 MHz频段或其部分频段，对于第5.296A款中提及的主管部门，对于第 5.313A 款中提及的主管部门，在 698 790 MHz 或其部分频段内。低于 1 GHz 的频谱预计非常适合移动宽带应用。特别是，低于 1 GHz 频段的独特传播特性允许更广泛的区域覆盖，这反过来需要更少的基础设施，并有利于向农村或人口稀少的地区提供服务。在这方面，700MHz 生态系统正在迅速发展：有超过 34 个商业网络部署。[ https://gsacom.com/paper/gsa-apt ... eployments-devices/] 来自 Region 3 的 APT700 频段计划对其在全球的成功发挥了巨大作用。在亚太地区以外，2 区的国家/地区已采用或计划采用 APT700 频段计划（3GPP 频段 28）来部署 LTE 系统。自 WRC-15 结束以来，1 区也采用了 APT700 计划的低双工器。随着 700MHz 频谱的使用率随着时间的推移而增加，除了 3GPP 频带 28 之外，还需要考虑可被视为伴侣的额外频谱。因此，将 600MHz 频带的部分用于移动宽带服务将提供一个至关重要的提供高质量、广域宽带服务的手段，包括在农村地区和建筑物深处。频率安排的及时可用性对于制定 IMT 规范和标准以及主管部门在上述脚注中及早考虑合适的频率安排至关重要。APT 地区非常多样化，包括高度发达和发展中国家，以及一些人口基数非常大的农村人口基数。低于 1 GHz 的频段非常适合后者。在过去一年左右的时间里，3GPP RAN 4 完成了一项关于在该频段使用的各种双工滤波器选项的可行性的研究项目。本研究的结果记录在 TR 38.860 中。该研究已于 2021 年 9 月以 LS RP-212629 的形式发送给 AWG，请求提供有关首选频段计划的指导和规范工作开始的监管方面的信息。 AWG 28 会议审议了 3GPP 的请求，并对本 LS 做出了回应。在此回复中，LS 表示偏爱选项 B1（全频段），并要求立即开始这项工作，以期在 2022 年 12 月之前完成。此外，3GPP 寻求的监管问题的答案现在已经通过回复 LS RP 221045 提供。具有单个双工器或全频段的选项 B1 的频段规划如下表 1 所示。Tx-Rx 是“反向双工”；换言之，下行频带低于双工间隙，而上行频带高于双工间隙。这种安排与传统的符号相反；然而，对于这个频段，它提供了将上行链路频段与 3GPP 频段 28 相邻对齐的好处，从而最大限度地减少了 703 MHz 边界处的干扰条件。

附件: [New WID on APT 600MHz NR band ] RP-221778 600_cl.docx (2022-7-22 17:22, 43.27 KB) / 下载次数 1
https://www.txrjy.com/forum.php?mod=attachment&aid=NTM4NjAzfGYyZmQwMWE0fDE3MzI1NjM3NzZ8MHww

附件: [Title: New WID on APT 600MHz NR band ] 1.jpg (2022-7-22 17:34, 105.84 KB) / 下载次数 0
https://www.txrjy.com/forum.php?mod=attachment&aid=NTM4NjA0fGZhNmNhZmJjfDE3MzI1NjM3NzZ8MHww

时间: 2022-7-22 11:56

作者: 马云的云

yz98061 发表于 2022-7-22 11:53
实际能做出来不？现在n71是分n71A和B的，这个理论是n71 extension

应该能做出来，不然研究半天研究个啥？肯定是研究方案的可行性啊。

时间: 2022-7-22 11:58

作者: yz98061

马云的云发表于 2022-7-22 11:56
应该能做出来，不然研究半天研究个啥？肯定是研究方案的可行性啊。

他只是一个option，如果因为做这个成本太高，也是可以不这么做的，还得看市场

时间: 2022-7-22 12:01

作者: yz98061

grake 发表于 2022-7-22 11:58
看内容是N71给扩展了啊你这标题不准确吧 N71早就定义了

扩展本来就可以定义为新的频段

时间: 2022-7-22 12:02

作者: 马云的云

yz98061 发表于 2022-7-22 11:58
他只是一个option，如果因为做这个成本太高，也是可以不这么做的，还得看市场

During the last year or so, 3GPP RAN 4 has completed a study item on the feasibility of various duplex filter options for use in this band. The results of this study are documented in TR 38.860. This study was sent to the AWG in an LS RP-212629 in Sep 2021 with a request to provide guidance on a preferred band plan and information on regulatory aspects for the normative work to begin. The AWG 28 meeting has considered the request of the 3GPP and has provided a response to this LS. In this response the LS has indicated a preference for option B1 (full band) and has also requested for the work to begin immediately with a view to completion by Dec 2022. Additionally, the answers to the regulatory questions sought by the 3GPP have now been provided via a reply LS RP 221045.

AWG应该会考虑产业链实现难度和成本问题的。

时间: 2022-7-22 12:03

作者: 马云的云

grake 发表于 2022-7-22 11:58
看内容是N71给扩展了啊你这标题不准确吧 N71早就定义了

这是新的定义。

时间: 2022-7-22 12:05

作者: yz98061

grake 发表于 2022-7-22 12:03
但是他不还是叫N71吗所以并不是新定义啊

应该会是新的，只是还没给数字。n71是北美的，这个是APT，和n28是同一个组织

时间: 2022-7-22 12:05

作者: 马云的云

grake 发表于 2022-7-22 12:03
但是他不还是叫N71吗所以并不是全新定义啊

跟n71不兼容。n71的duplex distance是46MHz，它这个是51MHz。

时间: 2022-7-22 12:08

作者: 马云的云

yz98061 发表于 2022-7-22 11:58
他只是一个option，如果因为做这个成本太高，也是可以不这么做的，还得看市场

AWG应该会考虑到产业链的实现难度和实现成本。

B71之所以搞俩双工器是因为好几年前可能单个双工器成本较高，但随着技术的成熟，现在或许成本没那么高了。

时间: 2022-7-22 12:09

作者: 马云的云

插个图：

附件: Extended600MHzSpectrum.jpg (2022-7-22 12:09, 270.24 KB) / 下载次数 1
https://www.txrjy.com/forum.php?mod=attachment&aid=NTM4NTc3fGNmOGM3MTdlfDE3MzI1NjM3NzZ8MHww

时间: 2022-7-22 12:12

作者: 马云的云

yz98061 发表于 2022-7-22 11:58
他只是一个option，如果因为做这个成本太高，也是可以不这么做的，还得看市场

另外，B28、B71当时搞俩双工器，可能也与当时只有4G标准，4G最大带宽只有20MHz有关，俩双工器不损失4G性能，每个双工器都可以用到20MHz。

现在5G最大带宽可以去到100MHz，你再弄俩窄带双工器，相比一个宽带双工器是会损失性能的，这个损失也需要产业链考虑。

时间: 2022-7-22 12:13

作者: 马云的云

本帖最后由马云的云于 2022-7-22 12:14 编辑

just10086 发表于 2022-7-22 11:55
马克。在外办事等会回去看

电联甭想了，这是移广低频6G的保留频率。

电联想搞低频6G，把850集群清理掉一部分搞吧。

时间: 2022-7-22 12:14

作者: yz98061

马云的云发表于 2022-7-22 12:12
另外，B28、B71当时搞俩双工器，可能也与当时只有4G标准，4G最大带宽只有20MHz有关，俩双工器不损失4G性能 ...

n71已经可以实现n71A和B的载波聚合了，但是上行只能在其中一个跑

时间: 2022-7-22 12:16

作者: 马云的云

yz98061 发表于 2022-7-22 12:14
n71已经可以实现n71A和B的载波聚合了，但是上行只能在其中一个跑

n71上行只能在B上跑，这样不影响A（下行A与上行B之间隔了个下行B）。

其实n28也可以这么搞，上行在A上跑，下行A和B可以聚合，没影响，上下行GAP没有缩小。

时间: 2022-7-22 12:17

作者: Gratch

反正国内不会用

时间: 2022-7-22 12:17

作者: 马云的云

grake 发表于 2022-7-22 12:12
国内600M释放遥遥无期

等2030年吧。

时间: 2022-7-22 12:24

作者: 马云的云

Gratch 发表于 2022-7-22 12:17
反正国内不会用

6G不好说。光电会窜捣总焗清理600MHz无线电视的。

时间: 2022-7-22 13:56

作者: wang2wei2

马云的云发表于 2022-7-22 12:16
n71上行只能在B上跑，这样不影响A（下行A与上行B之间隔了个下行B）。

其实n28也可以这么搞，上行在A上 ...

需要增加器件吗？

时间: 2022-7-22 14:00

作者: Gratch

马云的云发表于 2022-7-22 12:24
6G不好说。光电会窜捣总焗清理600MHz无线电视的。

不会，到时候先建高频6G，城市建完了逐步清理5G。

时间: 2022-7-22 14:01

作者: Vortex

Gratch 发表于 2022-7-22 12:17
反正国内不会用

你这个厂电的真是精神分裂，这么护主，还自宫

时间: 2022-7-22 14:04

作者: Vortex

不看好所谓的 B1 full-band , B2a 落地可能性最大

时间: 2022-7-22 14:44

作者: 马云的云

wang2wei2 发表于 2022-7-22 13:56
需要增加器件吗？

没有28B的需要增加。

时间: 2022-7-22 14:47

作者: 马云的云

Gratch 发表于 2022-7-22 14:00
不会，到时候先建高频6G，城市建完了逐步清理5G。

放心吧，无线电视活不到2030年，弄不好2025年就给清了，当5G广播全面商用后。

时间: 2022-7-22 15:36

作者: yuanfengding

更有可能，600-700MHz 留给6G，拆迁工程太漫长了

时间: 2022-7-22 15:36

作者: yuanfengding

5G也没有那么大的驱动力

时间: 2022-7-22 15:48

作者: Gratch

马云的云发表于 2022-7-22 14:47
放心吧，无线电视活不到2030年，弄不好2025年就给清了，当5G广播全面商用后。

不会，5g广播取代不了dtmb

时间: 2022-7-22 18:15

作者: zef908

马云的云发表于 2022-7-22 14:47
放心吧，无线电视活不到2030年，弄不好2025年就给清了，当5G广播全面商用后。

给谁用

时间: 2022-7-22 18:17

作者: just10086

Gratch 发表于 2022-7-22 15:48
不会，5g广播取代不了dtmb

自己去查查，那些dtmb设备，还有用户的机顶盒，都没厂家造了。现在就剩一些备用件修修补补。

时间: 2022-7-22 18:36

作者: just10086

马云的云发表于 2022-7-22 12:13
电联甭想了，这是移广低频6G的保留频率。

电联想搞低频6G，把850集群清理掉一部分搞吧。

5楼已更新。

时间: 2022-7-22 18:48

作者: uc浏览器

参与方有电联吗？

时间: 2022-7-22 18:51

作者: yz98061

uc浏览器发表于 2022-7-22 18:48
参与方有电联吗？

没有

时间: 2022-7-23 10:43

作者: qkb_75@163.com

遥想十年以前， APT 700 的数字红利释放，

那一片勃勃生机，万物竞发的局面，犹在眼前

难道 10年以后的 APT 600，就是我们的死地了吗？

优势在我！一把梭哈！就是干就完事了！

时间: 2022-7-23 15:05

作者: Gratch

grake 发表于 2022-7-23 14:59
你难道不知道现在很多电视都自带DTMB吗谁还去买什么设备啊

不是很多，是所有在售的电视都有。

时间: 2022-7-23 15:07

作者: Gratch

本帖最后由 Gratch 于 2022-7-23 15:08 编辑

just10086 发表于 2022-7-22 18:17
自己去查查，那些dtmb设备，还有用户的机顶盒，都没厂家造了。现在就剩一些备用件修修补补。

从14年1月1号开始在售40“及以上电视都支持，15年1月1号起所有在售电视都支持。

时间: 2022-7-23 15:27

作者: Gratch

grake 发表于 2022-7-23 15:22
不一定有些线上卖的互联网电视是没有的

看说明书，有些参数里面没写。

时间: 2022-7-23 15:27

作者: Gratch

grake 发表于 2022-7-23 15:22
不一定有些线上卖的互联网电视是没有的

强制性标准，不支持得附赠机顶盒。

时间: 2022-7-23 15:31

作者: 3gpp-r12

本帖最后由 3gpp-r12 于 2022-7-23 15:31 编辑

国内5g频段就这样了，这些频段肯定是6g以后的储备了

时间: 2022-7-23 15:46

作者: Gratch

grake 发表于 2022-7-23 15:31
就是没有的有没有打开电视看一眼就知道了并不是所有电视都支持DTMB

索尼最高端的型号都有，不过参数里面没写，说明书上写的是GB20600-2006

时间: 2022-7-23 17:12

作者: Vortex

Gratch 发表于 2022-7-22 15:48
不会，5g广播取代不了dtmb

移网赚钱了谁TM还弄费力不讨好的无线电视？你一天扯那些什么这样战位在栗益面前就是个G8

时间: 2022-7-24 16:36

作者: 马云的云

Gratch 发表于 2022-7-22 15:48
不会，5g广播取代不了dtmb

5G广播支持大塔+小塔、固定+移动，DTMB只支持大塔+固定。

5G广播是国际标准，DTMB是地区标准。

5G广播会首选ATP600频段播出，到时候看吧，只要搞5G广播，就会清600频段的DTMB。

时间: 2022-7-24 16:38

作者: 马云的云

zef908 发表于 2022-7-22 18:15
给谁用

当然是CBN用啊，首先用于5G广播。

时间: 2022-7-24 16:39

作者: 马云的云

uc浏览器发表于 2022-7-22 18:48
参与方有电联吗？

接收5G广播不需要SIM卡，移广电联用户都可以用。

时间: 2022-7-24 16:43

作者: Gratch

Vortex 发表于 2022-7-23 17:12
移网赚钱了谁TM还弄费力不讨好的无线电视？你一天扯那些什么这样战位在栗益面前就是个G8

又不是一个单位

时间: 2022-7-24 16:54

作者: Gratch

马云的云发表于 2022-7-24 16:36
5G广播支持大塔+小塔、固定+移动，DTMB只支持大塔+固定。

5G广播是国际标准，DTMB是地区标准。

dtmb照样支持移动接收

时间: 2022-7-24 22:49

作者: Gratch

马云的云发表于 2022-7-24 16:36
5G广播支持大塔+小塔、固定+移动，DTMB只支持大塔+固定。

5G广播是国际标准，DTMB是地区标准。

管你什么标准，使用者最多的才是事实上的标准。

时间: 2023-5-31 22:00

作者: 123XJMXJM

学习了

时间: 2023-7-19 21:24

作者: 清水86

马云的云发表于 2022-7-22 12:17
等2030年吧。

等

时间: 2023-7-19 21:28

作者: 清水86

Gratch 发表于 2022-7-24 16:54
dtmb照样支持移动接收

dtmb移动接收性能不稳定

通信人家园 (https://www.txrjy.com/)