Control information transmitting and receiving method, control information transmitting and receiving device, and control information transmitting system

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

Active Publication Date: 2014-12-10
ZTE CORP
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  • 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

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  • Control information transmitting and receiving method, control information transmitting and receiving device, and control information transmitting system
  • Control information transmitting and receiving method, control information transmitting and receiving device, and control information transmitting system
  • Control information transmitting and receiving method, control information transmitting and receiving device, and control information transmitting system

Examples

Experimental program
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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, ...

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Abstract

The present invention discloses a control information transmitting and receiving method, a control information transmitting and receiving device, and a control information transmitting system, wherein the control information transmitting method comprises: a base station determines the source repeatedly sending the control information according to predefined information, wherein the predefined information comprises at least one of: a starting sub-frame k0, a system frame number SFN, the number of repeat times or a repeat level N and a user identification UE ID; and the base station repeatedly sends control information on the source.

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

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/02H04L1/00
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
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