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Control information sending method, control information receiving method, and related devices

A technology for controlling information and sending method, which is applied in error prevention/detection using return channel, digital transmission system, electrical components, etc. It can solve problems such as inability to transmit control information normally, and achieve the effect of reducing complexity and improving transmission efficiency.

Active Publication Date: 2014-07-23
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a method for sending and receiving control information and a related device to solve the problem that the solution in the prior art cannot transmit control information normally under the condition of dynamic TDD

Method used

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  • Control information sending method, control information receiving method, and related devices
  • Control information sending method, control information receiving method, and related devices
  • Control information sending method, control information receiving method, and related devices

Examples

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Embodiment 1

[0049] Such as figure 2 As shown, it is a main flow chart of a method for sending uplink control information provided by an embodiment of the present invention. The execution subject of this method may be the terminal side, and it is applied in a dynamic TDD mode using a specified set of uplink and downlink subframe configuration methods. , the method includes the following steps:

[0050] Step 21, determining the number of the uplink subframe used to send the uplink control information;

[0051] Wherein, the number is: a number among numbers of subframes configured as uplink subframes in the specified set of uplink and downlink subframe configuration modes. Specifically, the subframes configured as uplink subframes in the set of uplink and downlink subframe configuration modes refer to: all configured as uplink subframes in the various configuration modes of uplink and downlink subframes included in the set of uplink and downlink subframe configuration modes. The subframe ...

Embodiment 2

[0084] Such as Figure 6 As shown, it is a main flow chart of a method for sending downlink control information provided by the embodiment of the present invention. The execution body of the method may be the network side, and it is applied in the dynamic TDD mode using the specified set of uplink and downlink subframe configuration methods. , the method includes the following steps:

[0085] Step 61, determining the number of the downlink subframe or special subframe used to send the downlink control information;

[0086]Wherein, the number of the downlink subframe or special subframe used to send downlink control information is: one of the numbers of subframes configured as downlink subframes or special subframes in the specified set of uplink and downlink subframe configuration modes Numbering. Specifically, the subframes configured as uplink subframes in the set of uplink and downlink subframe configuration modes refer to: all configured as downlink subframes in the vari...

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Abstract

The invention discloses a control information sending method, a control information receiving method, and related devices, for solving the problem of incapability of normal transmission of control information under a dynamic TDD condition by use of a conventional scheme in the prior art. According to the scheme provided by the invention, the control information and service data can be transmitted respectively on a determined subframe, uplink control information is only transmitted on a determined uplink subframe, and downlink control information is also only transmitted on a determined downlink subframe or a special subframe, so that the transmission efficiency of the downlink control information and the uplink control information is improved, the incapability of transmission of the uplink control information and the downlink control information under the dynamic TDD condition is avoided, and at the same time, the complexity in designing an HARQ time sequence under the dynamic TDD condition can also be reduced.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for sending and receiving control information and a related device. Background technique [0002] The frame structure of the Long Term Evolution (LTE) Time Division Duplex (TDD) system is as follows: figure 1 As shown, the length of each radio frame is 10ms, and each radio frame includes 10 subframes with a length of 1ms, which respectively include uplink subframes, downlink subframes and special subframes. According to the different proportions of uplink and downlink subframes in the same radio frame, there are 7 kinds of uplink-downlink subframe configuration (UL-DL configuration for short) in the TDD-LTE system. The proportions of the specified uplink and downlink subframes in the radio frame are different from each other. The seven specific ways of configuring uplink and downlink subframes are shown in Table 1, where D represents a downlink s...

Claims

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Application Information

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IPC IPC(8): H04L1/18H04L5/00
Inventor 姜大洁王飞闫渊胡臻平
Owner CHINA MOBILE COMM GRP CO LTD
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