Non-anchor carrier configuration for nb-iot

A technology of carrier and configuration information, which is applied to the separation device of transmission path, signaling distribution, distributed distribution, etc., to achieve the effect of reducing control overhead

Active Publication Date: 2019-11-22
TELEFON AB LM ERICSSON (PUBL)
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Non-anchor carrier configuration for nb-iot
  • Non-anchor carrier configuration for nb-iot
  • Non-anchor carrier configuration for nb-iot

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Embodiment Construction

[0035] A 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) wireless network may include a Narrowband Internet of Things (NB-IoT) network. NB-IoT networks can benefit from using additional spectrum. NB-IoT multi-carrier operation consists of operating on an NB-IoT anchor carrier configured through higher layer signaling (e.g. Layer 3 Radio Resource Control (RRC)) NB-IoT non-anchor carrier. Non-anchor carriers do not have to be deployed on the 100-kHz grid (eg, any LTE in-band PRB can be used as non-anchor). At the end of connected mode operation, the UE can autonomously return to the anchor carrier.

[0036] LTE Rel-14 extends multi-carrier operation such that UEs can both monitor paging and perform random access on non-anchor carriers. Since a Rel-14 UE in RRC idle mode is able to operate (RA and paging) on ​​a non-anchor carrier, the configuration is provided by common signaling. The network may broadcast the unanchored configuration in a new System Info...

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Abstract

According to some embodiments, a method in a network node comprises broadcasting configuration information comprising: an absolute radio frequency channel number (ARFCN) identifying a frequency position of a first carrier, and an index identifying a frequency position of a second carrier relative to the ARFCN of the first carrier. The method further comprises paging a wireless device using the second carrier. A method in a wireless device comprises: receiving the broadcasted configuration information; determining the frequency position of the second carrier using the frequency position of thefirst carrier and the index of the second carrier; and monitoring the second carrier for paging information. The wireless device may comprise a narrowband Internet-of-Things (NB-IoT) device, the firstcarrier may comprise a NB-IoT anchor carrier, and the second carrier may comprise a NB-IoT non-anchor carrier.

Description

technical field [0001] Certain embodiments are directed to wireless communications, and more particularly to PRB index configuration for non-anchor carrier configurations for narrowband Internet of Things (NB-IoT) and multi-physical resource block (PRB) operation. Background technique [0002] The 3rd Generation Partnership Project (3GPP) includes Narrowband Internet of Things (NB-IoT), which is a narrowband system developed for cellular IoT. The system is based on the existing LTE system and addresses an optimized network architecture and improved indoor coverage for a large number of devices with: (a) low-throughput devices (e.g., 2 kbps); (b) Low latency sensitivity (eg, ~10 seconds); (c) ultra-low device cost (eg, less than $5); and (d) low device power consumption (eg, 10-year battery life). [0003] Each cell in the system (~1 km 2 ) capable of serving thousands (~50 thousand) of devices such as sensors, gauges, actuators, and others. In order to use existing spectr...

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Application Information

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IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/001H04L5/0032H04L5/0053H04L5/0064H04L5/0094H04W68/00H04W4/80H04W76/27H04W24/08H04W68/005H04W72/0453H04W72/30
Inventor A.霍格伦
Owner TELEFON AB LM ERICSSON (PUBL)
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