Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Communication system

a communication system and communication terminal technology, applied in the field of communication systems, can solve problems such as collision risks, and achieve the effects of reducing the latency of communication between the base station device and increasing the power consumption of the communication terminal device, and saving the power consumption required for reception

Inactive Publication Date: 2020-02-06
MITSUBISHI ELECTRIC CORP
View PDF0 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The communication system described in this patent allows a base station to inform a communication device when to receive information, which helps to save power and reduce delays in communication. As a result, the communication device doesn't have to constantly search for information, leading to better communication quality and more efficient use of radio resources.

Problems solved by technology

The RACH involves a collision risk.

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
  • Communication system
  • Communication system
  • Communication system

Examples

Experimental program
Comparison scheme
Effect test

second embodiment

[0276]The physical control channel to which uplink control information (UCI) is to be mapped is the PUCCH in the LTE. The PUCCH resources are set to each UE. For example, the scheduling request (SR) configuration such as the PUCCH resources for SR and the SR period is set to each UE (see 3GPP TS 36.211 V 14.0.0 (hereinafter referred to as “Reference 3”) and 3GPP TS 36.213 V14.0.0 (hereinafter referred to as “Reference 4”). The RRC signaling is used in these settings (see 3GPP TS 36.331 V14.0.0 (hereinafter referred to as “Reference 5”)).

[0277]Multi-beamforming (MBF) requiring the beam sweeping is being studied in the NR. The MBF requiring the beam sweeping requires switching between beams to cover all the coverages. Since one subframe is solely used for transmitting and receiving one beam, the subframe cannot be used for transmitting and receiving the other beams. Thus, the conventional LTE setting method for configuring PUCCH resources for a plurality of UEs in one subframe has a p...

third embodiment

[0583]The second embodiment to the second modification of the second embodiment disclose methods for allocating the PUCCH of each beam to different resources as methods for transmitting and receiving the PUCCH in the MBF requiring the beam sweeping. The third embodiment will disclose another method as the method for transmitting and receiving the PUCCH in the MBF requiring the beam sweeping.

[0584]The cell assigns priorities for receiving the PUCCH to beams. The cell assigns the priorities for receiving the PUCCH to the beams, and receives the PUCCH via the target beam according to the priorities.

[0585]The cell may assign priorities to UEs. The cell may assign priorities to beams via which the UEs communicate, using the priorities of the UEs. For example, the cell assigns priorities to beams in descending order of the priorities among the UEs communicating via the same beam.

[0586]The following (1) to (9) will be disclosed as examples of an indicator for assigning priorities.

[0587](1)...

fourth embodiment

[0643]The second to the third embodiments disclose allocating symbols as the smallest unit of resources to which the PUCCH is allocated. As the number of times the beam sweeping is performed increases, the number of symbols necessary for the PUCCH resources also increases. Thus, configuring the PUCCH resources for many beams within one subframe will cause problems of reduction in the resources for data and decrease in the communication rate. Alternatively, configuring the PUCCH resources for fewer beams within one subframe requires the PUCCH resources over a plurality of subframes, and increases intervals at which the PUCCH resources for each beam are generated. These create a problem of increase in the latency.

[0644]The fourth embodiment will disclose a method for solving such problems.

[0645]A plurality of symbols are configured within one symbol duration, and the PUCCH resources of a plurality of beams are time-division multiplexed. The number of the plurality of symbols to be con...

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

Provided is a communication system capable of suppressing increase in the power consumption of a communication terminal device, degradation in the communication quality, and reduction in the use efficiency of radio resources. A base station device (gNB) notifies a communication terminal device (UE) of information on the next reception timing. The UE receives, for example, a downlink control signal (902) in a subframe (901). The UE obtains, from the downlink control signal (902), information on a piece of user data (903) in the subframe (901), and the information (904) on the next reception timing. The UE transmits and receives the piece of user data (903) to and from the gNB. The information (904) on the next reception timing indicates a subframe (905) as the next reception timing of the UE. The UE receives a downlink control signal (906) in the subframe (905).

Description

TECHNICAL FIELD[0001]The present invention relates to a communication system in which radio communication is performed between a communication terminal device such as a user equipment device and a base station device.BACKGROUND ART[0002]The 3rd generation partnership project (3GPP), the standard organization regarding the mobile communication system, is studying communication systems referred to as long term evolution (LTE) regarding radio sections and system architecture evolution (SAE) regarding the overall system configuration including a core network and a radio access network, which will be hereinafter collectively referred to as a network as well (for example, see Non-Patent Documents 1 to 5). This communication system is also referred to as 3.9 generation (3.9 G) system.[0003]As the access scheme of the LTE, orthogonal frequency division multiplexing (OFDM) is used in a downlink direction and single carrier frequency division multiple access (SC-FDMA) is used in an uplink dir...

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(United States)
IPC IPC(8): H04W72/12H04W16/28
CPCH04W52/0209H04W16/28H04W72/1289H04W84/042H04W72/046H04W72/23Y02D30/70
Inventor MOCHIZUKI, MITSURUSHIMODA, TADAHIROFUKUI, NORIYUKIKUSANO, MASAAKI
Owner MITSUBISHI ELECTRIC CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com