Unlock instant, AI-driven research and patent intelligence for your innovation.

Pdcch monitoring for low power consumption for narrow band internet of things

A technology of physical downlink and control channel, applied in the field of PDCCH monitoring with low power consumption

Active Publication Date: 2019-10-11
MEDIATEK SINGAPORE PTE LTD SINGAPORE
View PDF11 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For large Rmax, NPDCCH monitoring may last for a long time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pdcch monitoring for low power consumption for narrow band internet of things
  • Pdcch monitoring for low power consumption for narrow band internet of things
  • Pdcch monitoring for low power consumption for narrow band internet of things

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Reference will now be made in detail to some embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0023] figure 1 A novel mobile communication network 100 supporting an NPDCCH monitoring method is described. The mobile communication network 100 is an OFDM / OFDMA system including a base station eNodeB 101 and a plurality of user equipments UE 102 , UE 103 and UE 104 . Each UE gets a downlink allocation, eg a set of radio resources in the PDSCH, when there are downlink packets to be sent from the eNodeB to the UE. When the UE needs to send packets to the eNodeB in the uplink, the UE obtains a grant from the eNodeB, and the grant allocates a physical uplink shared channel (PUSCH) consisting of a set of uplink radio resources. A UE gets downlink or uplink scheduling information from a PDCCH specific to that UE. In addition, broadcast control information is also sent on the PDCCH to all UEs in the cell. The downlink or uplink sch...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method of narrowband physical downlink control channel (NPDCCH) monitoring with early decoding and reduced monitoring is proposed. Instead of blind decoding the NPDCCH at the end of each decoding instance, the UE tries to decode the NPDCCH at early decoding instances as well. The early decoding instances are determined based on the SNR of a received radio signal. Once NPDCCH is successfully decoded, UE stops the RF module. Furthermore, the UE skips some subframes for NPDCCH monitoring within each blind decoding interval, and turns on the RF only for synchronization and channel estimation purpose outside an NPDCCH monitoring length. The NPDCCH monitoring length is also determined based on the SNR of the received radio signal. By applying early decoding and reduced monitoring, UE power consumption can be reduced

Description

technical field [0001] Embodiments of the present invention generally relate to physical downlink control channel (PDCCH) monitoring, and, more specifically, relate to low power consumption PDCCH monitoring in Narrow Band Internet of Things (NB-IoT). Background technique [0002] In the Third Generation Partnership Project (3 rd In a generation partner project (3GPP) long-term evolution (Long-Term Evolution, LTE) network, an evolved universal terrestrial radio access network (evolved universal terrestrial radio access network, E-UTRAN) includes multiple base stations, for example, communicating with a user equipment ( An evolved Node-B (evolved Node-B, eNB) that communicates with multiple mobile stations of a user equipment (UE). Orthogonal Frequency Division Multiple Access (OFDMA) has been chosen for the LTE downlink (downlink, DL ) wireless access scheme. Downlink multiple access can be achieved by allocating different subbands of the system bandwidth (for example, su...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W52/0216H04W52/0219H04W52/0229H04W52/0245H04L5/0053Y02D30/70H04W52/0225H04W52/0274H04W52/028H04W52/0283H04L1/0038H04L1/0061H04L25/0202H04L1/0053H04W72/23H04B17/336H04W4/80H04W24/08H04W56/001
Inventor 曲文泽陈柏颖
Owner MEDIATEK SINGAPORE PTE LTD SINGAPORE