John

Expert Opinion

Expert Opinion
Short LTE articles and opinions by our team of Subject Matter Experts (SMEs)
  • John

    MME Pool Overlap

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    MME Pool overlap is a deployment technique that an LTE operator may utilize to limit the amount of handover and tracking area update signaling in the core network. In LTE the following geographic areas are defined. The basic building block is the cell...
  • John

    Speed Dependent Cell Reselection

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    Speed Dependent Cell Reselection When a mobile is idle it is important that it be listening to the best cell possible so that if data starts flowing again the user experience will be optimal. When the user is moving the best cell will change from time...
  • John

    Location Services Part 2: LTE Release 9 Features

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    Part 1 discussed the state of location services in current wireless networks lamenting the fact that many phone apps get their location information from internet services rather than the wireless network. In Part 2 we review location features in LTE Release...
  • John

    Location Services (Part 1)

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    Locations services in the wireless world have gone through somewhat of a revolution of late. The slow moving world of traditional telecommunications has been overtaken by the frenetic pace of change in internet applications and services. The cellular...
  • John

    IP Addressing in LTE: Part 1 - IPv6 Address Allocation

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    In Part 1 of this topic I will focus on IPv6 addresses that may be assigned to a mobile device. I will cover the structure of an IPv6 unicast address and the two types of unicast IPv6 addresses, link-local and global, that are assigned to LTE UEs....
  • John

    PBCH: Does the MIB tell the UE how many antennas are used in the cell?

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    Before answering this question let's review the contents of the Master Information Block (MIB). You will find the definition of the MIB in the RRC specification, 36.331. It contains just three parameters: DL Bandwidth, PHICH Configuration and System...
  • John

    PBCH: How quickly can a UE read the MIB?

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    The PBCH is designed to satisfy both the needs of UEs on the edge of coverage as well as those in good RF environments. To provide reliable reception for UEs experiencing low SINR conditions at the edge of the cell, the convolutionally encoded MIB...
  • John

    What is LTE?

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    By John McKeague In the beginning there was GSM. And then there was GPRS, and then UMTS/W-CDMA. In the future, hopefully not too distant future, there will be LTE. LTE (Long Term Evolution) is many things but an evolution of the current 3GPP technology...