Device discovery method for device-to-device communication, user device, and network side device

A network-side device and device discovery technology, which is applied in the field of device-to-device communication device discovery, can solve the problem that the communication method is not optimal

Active Publication Date: 2019-01-11
ZTE CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Clearly, this method of communication is not optimal when the two UEs are in close proximity

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
  • Device discovery method for device-to-device communication, user device, and network side device
  • Device discovery method for device-to-device communication, user device, and network side device
  • Device discovery method for device-to-device communication, user device, and network side device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0161] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other arbitrarily if there is no conflict.

[0162] The techniques described herein are applicable to cellular wireless communication systems or networks. Common cellular wireless communication systems can be based on CDMA (Code Division Multiplexing Access, code division multiple access) technology, FDMA (Frequency Division Multiplexing Access, frequency division multiple access) technology, OFDMA (Orthogonal-FDMA, orthogonal frequency division multiple access) technology, SC-FDMA (Single Carrier-FDMA, Single Carrier Frequency Division Multiple Access) technology, etc. For example, the 3GPP (3rd Generation Partnershi...

Embodiment 1

[0173] The first configuration signaling may include time-domain radio resource configuration parameters used to instruct the device discovery frame and / or subframe, and the device discovery time-domain resource configuration is performed through the parameters.

[0174] The radio frames used for device discovery can be allocated through time-domain resource periods and radio frame offsets. For example, it is possible to define the allocation period (Period) and the allocation offset (Offset) of the radio frame that the device discovers. When the System Frame Number (SFN) of the radio frame satisfies SFN mod Period = Offset, it means the radio frame For wireless frames used for device discovery, mod represents modulo operation. For example, the allocation period can be configurable, such as 1, 2, 4, 8, 16, 32, 64, etc., and the allocation offset can be configurable, such as 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7, etc.; or, the allocation period can be agreed, such as 16, or 32, and the allocation off...

Embodiment 2

[0186] The first configuration signaling may also include a frequency domain wireless resource configuration parameter used to instruct the device to discover the frequency band position, and the frequency domain wireless resource configuration parameter is used to allocate the device to discover frequency domain resources.

[0187] The frequency domain resources can be allocated through the frequency domain resource block allocation method in the LTE system (that is, the frequency domain wireless configuration parameter in the first configuration signaling is a resource allocation parameter based on the frequency domain resource block allocation method defined by the LTE system). For example, resource allocation type 0 (RA type 0), resource allocation type 1 (RA type 1), or resource allocation type 2 (RA type 2) can be used for frequency domain resource allocation, which will not be repeated here.

[0188] Alternatively, the frequency domain resources may be allocated in a bitmap m...

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

The invention discloses a device discovery method for device-to-device communication, a user device and a network side device, and relates to the field of wireless communication. The method disclosed in the present invention includes: the user equipment receives the device discovery first configuration signaling sent by the network side device; the user equipment determines the device discovery resource used for device discovery signal transmission according to the first configuration signaling, and performs device discovery through the device discovery resource. Discovery; where the first configuration signaling is sent in the form of broadcast, at least including one or more of the following parameters: used to instruct the device to discover the time domain wireless resource configuration parameters of the frame and / or subframe; used to instruct the device to discover the frequency band Frequency-domain radio resource configuration parameters of the location; sequence configuration parameters used to instruct the device to discover the signal sequence. The invention also discloses user equipment and network side equipment. The technical solution of the present application solves the problem of device discovery in device-to-device communication in a cellular communication system.

Description

Technical field [0001] The present invention relates to the field of wireless communication, and in particular to device discovery applied to device-to-device communication in a cellular wireless communication system. Background technique [0002] Because of the realization of multiplexing of limited spectrum resources in cellular communication, wireless communication technology has developed vigorously. In a cellular communication system, when there is service transmission between two user equipment (User Equipment, UE for short), the service data from user equipment 1 (UE1) to user equipment 2 (UE2) will first be transmitted to UE1 through the air interface The base station (Base Station, or Node B, evolved Node B, eNB) of the cell where it is located, the base station transmits the user data to the base station of the cell where UE2 is located through the core network, and the base station transmits the above service data to UE2 through the air interface . The service data t...

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 Patents(China)
IPC IPC(8): H04W72/04
CPCH04W8/005H04W76/14
Inventor 吴栓栓梁枫戴博张峻峰
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap