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

Transmission and reception method, device and system of control information

A technology for controlling information and transmission methods, which is applied in the field of communication, and can solve the problems of increased collision probability of control information and increased scheduling blocking rate, etc.

Active Publication Date: 2019-09-10
ZTE CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In the related art, since the specific resource positions corresponding to the same candidate set on each subframe are random, the probability of control information collision between coverage enhancement terminals increases and the scheduling blocking rate increases. The present invention provides a control Information transmission and reception methods, devices and systems to at least solve the above problems

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 and reception method, device and system of control information
  • Transmission and reception method, device and system of control information
  • Transmission and reception method, device and system of control information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0162] In this embodiment, a method for transmitting control information under an FDD (Frequency Division Duplexing, frequency division duplex) system is described in detail.

[0163] The base station allocates resources for the terminal to repeatedly send control information with the same content in multiple subframes according to the starting subframe, system frame number, and repetition times, and the resource positions used in multiple subframes are the same.

[0164] The control information is occupied in units of CCE resources, and the aggregation level AL=8 is selected, that is, 8 CCE resources are used. The system bandwidth is 10MHz at this time, excluding the control area resources occupied by other channels and pilots, the starting subframe k 0 Number of CCEs for 44. At this time, its RNTI value is 200. Then in the initial subframe k 0 =0, the resources allocated in SFN=0 are calculated according to the following formula, k=0, Y 0=(39827·200)mod65537=35423, CCE...

Embodiment 2

[0175] This embodiment describes in detail the transmission of control information using the method provided by the present invention under a TDD (Time Division Duplexing, Time Division Duplex) system.

[0176] The base station allocates resources for the terminal to repeatedly send control information with the same content in multiple subframes according to the starting subframe, system frame number, and repetition times, and the resource positions used in multiple subframes are the same.

[0177] The control information is occupied in units of CCE resources, and the aggregation level AL=4 is selected, that is, 4 CCE resources are used. The system bandwidth is 10MHz at this time, excluding the control area resources occupied by other channels and pilots, the starting subframe k 0 Number of CCEs for 44. At this time, its RNTI value is 300. Then in the initial subframe k 0 =0, the resources allocated in SFN=53 are calculated according to the following formula, k=2, Y 0 =(...

Embodiment 3

[0188] In this embodiment, a method for transmitting control information under an FDD (Frequency Division Duplexing, frequency division duplex) system is described in detail.

[0189] The base station allocates resources for the terminal to repeatedly send control information with the same content in multiple subframes according to the starting subframe, system frame number, and repetition times, and the resource positions used in multiple subframes are the same.

[0190] The control information is occupied in units of CCE resources, and the aggregation level AL=8 is selected, that is, 8 CCE resources are used. The system bandwidth is 10MHz at this time, excluding the control area resources occupied by other channels and pilots, the starting subframe k 0 Number of CCEs is 44, the number of CCEs in subframes 1-7 is the same as that of subframe 0, and the number of CCEs in subframes 8 and 9 for 35. At this time, its RNTI value is 101. Then in the initial subframe k 0 =0, ...

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 method, device and system for transmitting and receiving control information. Wherein, the transmission method of the control information includes: the base station determines the resource for repeatedly sending the control information according to the predefined information, wherein the predefined information includes at least one of the following: the starting subframe k 0 , a system frame number SFN, a number of repetitions or a repetition level N, and a user identifier UE ID; the base station repeatedly sends control information on the above resources.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method, device and system for transmitting and receiving control information. Background technique [0002] Machine Type Communication (MTC for short) User Equipment (UE for short), also known as Machine to Machine (M2M for short) user communication equipment, is currently the main application form of the Internet of Things. In recent years, more and more mobile operators Suppliers choose LTE / LTE-A as the evolution direction of broadband wireless communication systems. MTC multi-type data services based on LTE / LTE-A will also be more attractive. [0003] The existing LTE / LTE-A system performs transmission based on dynamic scheduling of each subframe, that is, each subframe can transmit a different control channel. [0004] A physical downlink control channel (Physical Downlink Control Channel, PDCCH for short) and an enhanced physical downlink control channel (Enhanced Phy...

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): H04W76/10H04L1/00
CPCH04L1/1854H04L1/1858H04L1/08H04W72/20H04W72/0446
Inventor 石靖戴博夏树强方惠英刘锟陈宪明鲁照华
Owner ZTE CORP