One thought on “Cache Of The Day”

  1. Note that IPWIreless is now pushing an all downlink implementation of TD-WCDMA (this would not count in and of itself as 3G or 4G, since those are 2-way). The proposed use for such a thing is mobile TV. Another use would be for an asynchronous data network that used some additional channels for only downlink. In either case, since you generally have a nicer link-budget on the downlink (i.e. from a base-station to a mobile) you could overlay a new higher frequency network on your system using the same lower frequency build-plan — overlay 2.5 GHz on existing PCS network without adding sites. Clearly, one can see the benefit of this for a company like Sprint that has an existing PCS network and tons of unused 2.5 GHz licenses.

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