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Method and system for transmitting control format indicating value

A technology for controlling format indication and transmission method, applied in transmission systems, digital transmission systems, multiple use of transmission paths, etc., and can solve the problem that the CFI value cannot fully indicate the combination of CFI and CI.

Inactive Publication Date: 2010-07-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0046] Aiming at the problem that the transmission method of the CFI value in the related art cannot completely indicate all possible combinations of CFI and CI, the main purpose of the present invention is to provide a transmission method and transmission system of the control format indication value to solve at least one of the above problems one

Method used

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  • Method and system for transmitting control format indicating value
  • Method and system for transmitting control format indicating value
  • Method and system for transmitting control format indicating value

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] When configuring the PDCCH on the current component carrier C0 to indicate the PDSCH of two component carriers (for example, component carriers C0 and C1) (specifically, the first DCI in the PDCCH indicates the PDSCH on C0, and the second DCI indicates the PDSCH on C1). PDSCH), the above 3-bit values ​​000-111 can respectively represent the following indication information:

[0090]1) The value of the above 3 bits is 000, which is used to indicate that the PDSCH corresponding to the above PDCCH is transmitted on the component carrier C0, and the way for C0 to obtain the control format indication value is to decompose the PCFICH of the component carrier C0;

[0091] 2) The value of the above 3 bits is 001, which is used to indicate that the PDSCH corresponding to the above PDCCH is transmitted on the component carrier C1, and the CFI of the component carrier C1=1;

[0092] 3) The value of the above 3 bits is 010, which is used to indicate that the PDSCH corresponding to ...

Embodiment 2

[0099] When the PDCCH on the current component carrier C0 is configured to indicate the PDSCH of three component carriers (for example, component carriers C0, C1, and C2), the above 3-bit values ​​000-111 can respectively represent the following indication information:

[0100] 1) The value of the above 3 bits is 000, which is used to indicate that the PDSCH corresponding to the above PDCCH is transmitted on the component carrier C0, and the way for C0 to obtain the control format indication value is to decompose the PCFICH of the component carrier C0;

[0101] 2) The value of the above 3 bits is 001, which is used to indicate that the PDSCH corresponding to the above PDCCH is transmitted on the component carrier C1, and the CFI of the component carrier C1=1;

[0102] 3) The value of the above 3 bits is 010, which is used to indicate that the PDSCH corresponding to the above PDCCH is transmitted on the component carrier C1, and the CFI of the component carrier C1=2;

[0103] 4...

Embodiment 3

[0112] When the PDCCH on the current component carrier C0 is configured to indicate the PDSCH of 4 component carriers (for example, component carriers C0, C1, C2 and C3), the above 3-bit values ​​000-111 can respectively represent the following indication information:

[0113] 1) The value of the above 3 bits is 000, which is used to indicate that the PDSCH corresponding to the above PDCCH is transmitted on the component carrier C0, and the way for C0 to obtain the control format indication value is to decompose the PCFICH of the component carrier C0;

[0114] 2) The value of the above 3 bits is 001, which is used to indicate that the PDSCH corresponding to the above PDCCH is transmitted on the component carrier C1, and the CFI of the component carrier C1=1;

[0115] 3) The value of the above 3 bits is 010, which is used to indicate that the PDSCH corresponding to the above PDCCH is transmitted on the component carrier C1, and the CFI of the component carrier C1=2;

[0116] 4)...

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Abstract

The invention provides a method and a system for transmitting a control format indicating value. The method comprises the following steps: configuring indication signaling in the downlink control information DCI of a physical downlink control channel PDCCH on a current component carrier, wherein the indication signaling is used for indicating component carriers and indicating control format indicating values of the component carriers or a mode of acquiring the control format indicated values, and the indicated component carriers are used for transmitting the physical downlink shared channel PDSCH corresponding to the PDCCH; and transmitting the DCI to terminal UE. Through the method, the problem that possible combinations of CFI and CI cannot be completely indicated is solved, and the technical effects of avoiding CFI false detection, relatively less overhead and the like are achieved.

Description

technical field [0001] The invention relates to the field of mobile wireless communication, in particular to a transmission method and a transmission system of a control format indication value. Background technique [0002] A radio frame (radioframe) in a Long Term Evolution (LTE, Long Term Evolution) system includes frame structures in a Frequency Division Duplex (FDD, Frequency Division Duplex) mode and a Time Division Duplex (TDD, Time Division Duplex) mode. [0003] The frame structure of FDD mode, such as figure 1 As shown, a wireless frame of 10 milliseconds (ms) consists of twenty slots (slots) with a length of 0.5ms and numbers 0 to 19, and slots 2i and 2i+1 form a subframe (subframe) with a length of 1ms i. [0004] The frame structure of TDD mode, such as figure 2 As shown, a 10ms radio frame consists of two half frames with a length of 5ms. A half frame includes five subframes with a length of 1ms. Subframe i is defined as two time slots with a length of 0.5m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26
CPCH04L5/001H04L5/0094H04W72/042H04L5/0053H04W72/23
Inventor 戴博曾萍吴欣左志松
Owner ZTE CORP
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