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

Transmission processing method and device

A processing method and data transmission technology, applied in the field of communication, can solve problems such as no retransmission mechanism, and achieve the effect of improving reliability

Inactive Publication Date: 2017-10-03
BEIJING XINWEI TELECOM TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a transmission processing method and device to solve the problems caused by no retransmission mechanism in the prior art

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
  • Transmission processing method and device
  • Transmission processing method and device
  • Transmission processing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0129] Embodiment 1: Point-to-multipoint transmission scenario

[0130] Scenario 1: The base station (eNB) simultaneously performs point-to-multipoint transmission of service 1 for UE11, UE12, and UE13 in the cell, and performs point-to-multipoint transmission of service 2 for UE21 and UE22. Let UE11, UE12 and UE13 be the receiving node group R1, and UE21 and UE22 be the receiving node group R2. Such as image 3 shown.

[0131] Scenario 2: Terminal UE21 performs point-to-multipoint transmission of service 3 to UE22, UE23 and UE24 at the same time, and let UE22, UE23 and UE24 be the receiving node group R3. Such as Figure 4 shown.

Embodiment 2

[0132] Embodiment 2: Synchronous maintenance

[0133] The receiving node group R1 based on scenario 1 of the first embodiment. Such as Figure 5 shown.

[0134] During the time period from t0 to t1, UE11, UE12, and UE13 are all in the UE uplink synchronization state, and the base station judges that the group R1 is in the group uplink synchronization state;

[0135] During the time period from t1 to t2, UE11 is in the UE uplink out-of-sync state, UE12 and UE13 are both in the UE uplink synchronization state, and the base station judges that the group R1 is in the group uplink synchronization state;

[0136] During the period from t2 to t3, both UE11 and UE12 are in the UE uplink out-of-sync state, UE13 is in the UE uplink synchronization state, and the base station judges that the group R1 is in the group uplink synchronization state;

[0137] During the time period from t3 to t4, UE11, UE12, and UE13 are all in the UE uplink out-of-sync state, and the base station judges t...

Embodiment 3

[0139] Embodiment 3: configuration of uplink synchronization resources

[0140] The uplink synchronization resource for point-to-multipoint transmission is configured based on the coverage radius of the cell, and the uplink resource 2 matching the coverage radius of the cell is used for point-to-multipoint HARQ feedback.

[0141] Taking the LTE FDD system as an example, the uplink synchronization resource is a Physical Random Access Channel (PRACH). PRACH has 4 preamble formats, as shown in the following table:

[0142]

[0143] Note: us means microsecond; ms means millisecond; km means kilometer.

[0144] For cells with a cell coverage radius less than or equal to 14km, use preamble format 0 for HARQ feedback for point-to-multipoint transmission;

[0145] For cells with a cell coverage radius less than or equal to 29km, use preamble format 2 for HARQ feedback for point-to-multipoint transmission;

[0146] For cells with a cell coverage radius less than or equal to 77km,...

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 transmission processing method and device. The method comprises the steps that a sending node transmits data to a receiving node group composed of a plurality of receiving nodes; and all receiving nodes in the receiving node group carry out feedback on the received data through uplink resources. Through application of the method and the device, the problem resulting from lack of a repeat mechanism in the prior art is solved, and the point-to-multipoint transmission reliability is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a transmission processing method and device. Background technique [0002] Mobile services are divided into point-to-point services (such as unicast services) and point-to-multipoint services (such as broadcast and multicast services, group call services). [0003] 3GPP has three transmission mechanisms to solve point-to-multipoint services, namely eMBMS (enhanced multimedia broadcast multicast service, enhanced Multimedia Broadcast Multicast Service), SC-PTM (Single Cell Point to Multipoint, single cell point to multipoint) and Unicast (unicast). Among them, for eMBMS and SC-PTM, there is no physical layer retransmission mechanism (for example, HARQ retransmission) at present. Therefore, for error-sensitive data services, the transmission efficiency of the system will be very low. Contents of the invention [0004] The invention provides a transmission processing method an...

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
IPC IPC(8): H04L1/18
Inventor 谭源春李楚浩
Owner BEIJING XINWEI TELECOM TECH
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