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全部话题 - 话题: lte
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a*****u
发帖数: 2
1
来自主题: EE版 - LTE vs. WiMax, which will win ?
LTE vs. WiMax, which will win ?
It seems that LTE will win even it is a later comer, why ?
D*******a
发帖数: 3688
2
来自主题: EE版 - LTE vs. WiMax, which will win ?
but ATT and TMO will natually evolve to LTE as well, since they are already
GSM. so out of the big 4, 3 will be using LTE while sprint is probably on
WiMax
even sprint is doubting its WiMAX deployment.
t**o
发帖数: 1030
3
同时部署两个的话,消耗的资源太大,费用太高,估计运营商不会愿意。
不过MS现在LTE稍稍占据了上风。曾经立誓要做WiMAX老大的Nortel最近转向了LTE
W*****e
发帖数: 7759
4
LTE is much better in tackling mobility (of course there are things going on
for mobile WiMAX), plus there are also legacy issues...Currently, LTE has a
much better outlook than WiMAX
w******t
发帖数: 241
5
来自主题: EE版 - 大家觉得LTE有前途吗?
基本上所有的大电信公司都会向LTE倾向了。wimax现在看来作为城乡结合部,或者广阔
农村地区的补充不错。但是很难和LTE抗衡了
t**********t
发帖数: 12071
6
Orz 太上皇圣旨到!~~~~~
http://labs.chinamobile.com/community/my_blog/339/7396
11月10日消息,日前工信部召开了江泽民《新时期我国信息技术产业的发展》文章发表
座谈会,文章指出,在宽带无线技术领域,我国应十分重视3G技术的演进,加强TD-LTE
等3G后续技术的研究。
江泽民在文章是这样分析的:“我国自主开发的TD-SCDMA第三代移动通信(3G)技术
已开始商用化,应十分重视其技术演进,及时把握下一代宽带无线网络技术发展的关键
时机,加强TD-LTE等后续技术的研究。”
关于发展模式,他希望:“积极打造产业链整体配套与运营共同发展的合作模式,
争取成为新一代移动通信标准提供更多的自主创新技术,取得技术和市场的双重优势,
注重低成本,低功耗和绿色环保,开发关键芯片、核心器件和多频多模多媒体终端等产
品,满足发展需要。”
这篇文章凝聚了江泽民同志多年来对信息技术产业发展的战略思考,是多年的经
验总结和智慧结晶,对新时期我国信息技术产业发展具有重要指导意义。
(移动labs独家新闻,转载请注明来源:“移动labs(labs
d**s
发帖数: 920
7
经常看到, HSPA的速度是: 14.4 Mbit/s or something like this.
Is this the data rate of a cell tower (station) shared by all users in the
cell ? or is this the data rate for a user ?
Similar for LTE, on Wikipedia, it says its Downlink 326.4 (Mbit/s)
Is this the data rate of a cell tower (station) and shared by all users in
the cell ?
On http://en.wikipedia.org/wiki/Wimax
看起来, LTE的速度比Wimax高许多, 是不是搞错了 ?
g*****e
发帖数: 87
8
Chipsets for handsets: most likely you have to integrate LTE and 3G(either
WCDMA or CDMA2000) functionality together. Power consumption is going to be
a headache since UE has to measure both LTE and 3G air interface. The
smoother user experience you want, the more challenging it is going to be.
The second is SON: self configured and self healing network management system. There is simply no established practice to do it. Any vendor working on it now probably has to hack either eNodeB or manageme
r**********r
发帖数: 13
9
LTE中每个symbol前有一个Cyclic Prefix (CP, 4.7 us). CP is just a repeat of
the end of the previous symbol, and is used to give a "settling time" to
allow for delay spread in propagation channel.
Does this meant that if the multipath delay is longer than 4.7 us, the LTE
system will suffer from significant inter symbol interference?
If no, what am I missing here?
谢谢了.
M*******8
发帖数: 85
10
【 以下文字转载自 JobHunting 讨论区 】
发信人: Mueller08 (简单,真实), 信区: JobHunting
标 题: 怎么准备LTE 的test 位置
发信站: BBS 未名空间站 (Tue Jun 22 11:39:22 2010, 美东)
Lucent的LTE 的tester 位置,不知道要熟悉哪些test 设备?
T*****J
发帖数: 193
11
请版上的通信大侠们给看看, 谢谢
1。 在做TCP 或UDP 数据传输时, LTE donwlink 的High BLER可能会有哪些方面的因
素造成的?
如何解决呢?
2。 另外, LTE中, UE做intra eNodeB handover 时, 可能有哪些因素造成 RACH 失
败呢?
谢谢
M**********e
发帖数: 44
12
来自主题: EE版 - 请教CDMA/LTE中卷积码标准
我对CDMA的convolutional encoder的标准不熟悉,只知道K=9,2个branch and
polynomial generator.
CDAM或LTE中对convolutional encoder的throughtput要求最高是多少?编码一个比特需
要多少纳秒?CDAM或LTE还有那些速率?
比如802.11a中的最高速度:54Mbps:216 bits are needed to be processed in 4us,
so the throughput is: 18.5ns/bit.
我在做个多模式下通用的Viterbi decoder,可以支持802.11a和MBOA UWB,想把CDMA也加
进去.
z*******n
发帖数: 1034
13
来自主题: MobileDevelopment版 - Verizon Offers Double Bandwidth To LTE in 44 states
On the surface, it's not a lot different than the company's current LTE: the
icon is the same, the phones are basically the same (we'll actually get to
a list a little bit later), and no modifications are needed to current plans
. XLTE is about making sure customers in big cities – places that are
generally congested – always have the bandwidth and speed they need to get
things done by allowing access to both 700 MHz and AWS spectrums at the same
time. This, in theory, should also alleviate some... 阅读全帖
f***a
发帖数: 1434
14
Verizon prepaid官网有活动,$100 off任何 4G LTE phones。
需要打电话或者去店里,port-in 并且开通prepaid服务($45 or $60 plan)。
我买了一个blackberry priv $308 (408 - 100)
免激活费,免费next day shipping.
verizon自己的prepaid相比其他比如pageplus的优势是速度:
verizon自己的prepaid的LTE不限速,其他第三方prepaid都限速到5Mbps/1Mbps (
Download/Upload)
q**********r
发帖数: 465
15
来自主题: CellularPlan版 - Ringplus换了lg volt手机,没有LTE
我以前也有同样的问题。
用LG 自己的ROM, 死活不出LTE,
找了ringplus 客服也没用。几个week也解决不了问题。
后来刷了CM13, LTE就出来了。
看来是ROM的问题。但是我不知道问题在哪。

volt
a***a
发帖数: 2493
16
应该不是lte更省电,而是volte更省电,因为将来的手机少了不必要的2g/3g模块,二
来不需要在2g/3g/lte之间切换所以更省电。我相信现下version的机子强制在votle下
会更省电。
b******s
发帖数: 5329
17
来自主题: CellularPlan版 - 为啥限速到0.3M还算是LTE啊?
限速一样,用LTE唯一的好处就是手机信号那里看到的是LTE不是3G,心理舒畅点。。。
y***k
发帖数: 9459
18
来自主题: CellularPlan版 - tracfone的att是不是把LTE给关了
过去一直有LTE,最近一个月几乎见不到LTE的标志了。手机是苹果6,lg g2 v版和
lumia 640
y***k
发帖数: 9459
19
来自主题: CellularPlan版 - tracfone的att是不是把LTE给关了
640自动认成att的profile,记得之前是有LTE的。lg g2是自己设置的,过去有偶尔LTE
,现在彻底没有了
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